CN115663817A

CN115663817A - Electric energy transmission device, control method thereof and power supply system

Info

Publication number: CN115663817A
Application number: CN202211449322.5A
Authority: CN
Inventors: 高振东; 牟国良; 刘芳世
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2015-06-11
Filing date: 2016-06-08
Publication date: 2023-01-31
Also published as: CN106253286A

Abstract

The invention discloses an electric energy transmission device, comprising: the input component is connected with the direct-current energy storage component; the output component comprises an alternating current equipment interface used for connecting alternating current equipment; a transfer member that transfers electrical energy from the input member to the output member; the adapter component comprises a direct current driving unit and an alternating current driving unit, the direct current driving unit converts the energy of the direct current energy storage component into direct current, the alternating current driving unit converts the energy of the direct current energy storage component into alternating current, and at least one of the direct current driving unit and the alternating current driving unit is connected with an alternating current equipment interface. The invention also discloses a control method of the electric energy transmission device and a power supply system with the electric energy transmission device. The beneficial effects of the invention are as follows: the alternating current equipment interface of the electric energy supply device can output direct current and alternating current, and the cost of supplying power to the alternating current equipment is reduced.

Description

Electric energy transmission device, control method thereof and power supply system

The invention relates to an electric energy transmission device, a control method thereof and a power supply system, wherein the application number of the original application is 201610402893.1, and the application date is 2016, 6 and 8.

Technical Field

The present invention relates to an electric energy transmission device; the invention also relates to a control method of the electric energy transmission device; the invention also relates to a power supply system comprising the electric energy transmission device.

Background

Current world energy is transitioning from ac to dc, and dc power sources are becoming increasingly powerful and inexpensive. New dc energy-driven machines such as electric vehicles are occupying the world. However, due to historical reality, there are a large number of devices, power tools, that use alternating current power. In this long transformation period, the problem of energy compatibility of the communication equipment needs to be solved. The traditional inversion mode is used for converting direct current into sine alternating current for alternating current equipment, so that the cost is high, the energy loss is high, and the size of an inversion device is large.

Disclosure of Invention

In view of the above, the present invention is directed to an electric energy providing device with low cost, good compatibility and high practicability.

An electrical energy transfer device comprising: the input component is connected with the direct-current energy storage component; the output component comprises an alternating current equipment interface used for connecting alternating current equipment; a transfer component that transfers electrical energy from the input component to the output component; the adapter component comprises a direct current driving unit and an alternating current driving unit, the direct current driving unit converts the energy of the direct current energy storage component into direct current, the alternating current driving unit converts the energy of the direct current energy storage component into alternating current, and at least one of the direct current driving unit and the alternating current driving unit is connected with an alternating current equipment interface.

Preferably, the direct current driving unit and the alternating current driving unit are alternatively connected with the same alternating current equipment interface.

Preferably, the dc driving unit and the ac driving unit are connected to different ac device interfaces respectively.

Preferably, the dc driving unit outputs continuous dc power to the ac device interface.

Preferably, the dc driving unit outputs intermittently interrupted dc power to the ac device interface.

Preferably, the direct current is periodically interrupted.

Preferably, the direct current lasts for a time greater than or equal to 20ms.

Preferably, the direct current is interrupted when a preset condition is met, where the preset condition is that the electric energy transmission device detects that a main switch of an alternating current device connected to the electric energy transmission device receives a disconnection instruction.

Preferably, when a preset condition is met, the direct current is interrupted, and the preset condition is that the electric energy transmission device detects that the working parameters of the main switch of the alternating current equipment connected with the electric energy transmission device meet a breakpoint condition.

Preferably, the interruption lasts for a time length greater than 3ms.

Preferably, the ac driving unit boosts and inverts the electric energy of the input member and converts the electric energy into ac power.

Preferably, the maximum output power of the ac drive unit is less than or equal to 300W.

Preferably, the peak value of the alternating current is smaller than or equal to the voltage value of the input end of the alternating current driving unit.

Preferably, the ac drive unit steps up the power of the ac power applied to the ac device interface in a soft start manner.

Preferably, the adaptor component further comprises a detection unit, a controller and an output selection unit, wherein the detection unit detects working parameters related to characteristics of the alternating current equipment, and the controller controls the output selection unit to alternatively output alternating current or direct current according to a detection result of the detection unit.

Preferably, the detection unit detects power of the alternating current device; when the controller judges that the power of the alternating current equipment is smaller than or equal to a preset value, the controller controls the output selection unit to output alternating current to the alternating current equipment interface; and when the controller judges that the power of the alternating current equipment is greater than a preset power value, controlling an output selection unit to output direct current to an alternating current equipment interface.

Preferably, when the controller determines that the power of the ac device is greater than the preset power value, the controller further determines whether the ac device is suitable for being supplied with power by direct current, and when the determination result is yes, controls the output selection unit to output direct current to the ac device interface; and when the judgment result is negative, controlling the output selection unit to stop outputting the electric energy to the interface of the alternating current equipment.

Preferably, the specific way for the controller to further determine whether the ac device is suitable for being supplied with power by direct current is that the detection unit detects an ac operating current value of the power transmission device when the ac device interface outputs alternating current and a dc operating current value of the power transmission device when the ac device interface outputs direct current, when the dc operating current value and the ac operating current value satisfy a preset relationship, a determination result of the controller is yes, and when the dc operating current value and the ac operating current value satisfy a turn-off condition, a determination result of the controller is no.

Preferably, the preset relationship is as follows: the DC working current value is less than 5 times of the AC working current value.

Preferably, the direct current working current value is greater than 5 times of the alternating current working current value; or the direct current operating current value is greater than the alternating current operating current value by more than 10A.

Preferably, the controller limits the power of the alternating current or the direct current output to the interface of the alternating current device when judging whether the alternating current device is suitable for being supplied with the direct current.

Preferably, in the process that the output selection unit outputs the alternating current to the alternating current device interface, if the detection unit detects that the power of the alternating current device is greater than the preset power value, the controller controls the output selection unit to output the direct current to the alternating current device interface.

Preferably, in the process that the output selection unit outputs the direct current to the ac device interface, if the detection unit detects that the power of the ac device is less than or equal to the preset power value, the controller controls the output selection unit to output the alternating current to the ac device interface.

Preferably, the power transmission device further includes at least one of a dc device interface, a USB device interface, a vehicle-mounted cigarette lighter interface, or a solar charging interface.

Preferably, the power transfer device further comprises at least one of an audio processing circuit or a projector circuit.

The invention also provides a control method of the electric energy transmission device, which comprises the following steps: an AC device interface for connecting an AC device to the power transmission apparatus; detecting the power of the alternating current equipment; when the power of the alternating current equipment is smaller than or equal to a preset power value, outputting alternating current to an alternating current equipment interface; and when the power of the alternating current equipment is larger than a preset power value, outputting direct current to an interface of the alternating current equipment.

Preferably, before outputting the dc power to the ac device interface, the method further includes the following steps: judging whether the alternating current equipment is suitable for being supplied with power by direct current, and outputting the direct current to an interface of the alternating current equipment when the judgment result is yes; and when the judgment result is negative, stopping the output of the electric energy to the interface of the alternating current equipment.

Preferably, the step of determining whether the ac device is suitable for being powered by dc power comprises: outputting alternating current to an alternating current equipment interface; detecting alternating current working current of the electric energy transmission device; outputting direct current to an alternating current equipment interface; detecting the direct current working current of the electric energy transmission device; when the direct current working current value and the alternating current working current value meet a preset relation, the judgment result is yes, and when the direct current working current value and the alternating current working current value meet a turn-off condition, the judgment result is no.

The invention also provides a power supply system, which comprises a direct-current energy storage component and an electric energy output device, wherein the electric energy transmission device is any one of the electric energy transmission devices.

Preferably, the direct-current energy storage component comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is a battery pack detachably mounted on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack, and the standard unit is provided with an output terminal for outputting voltage; the direct-current energy storage component comprises a plurality of secondary energy storage modules; the secondary energy storage module comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the switching component comprises a switching circuit, an input end of the switching circuit is connected with the input component, an output end of the switching circuit is connected with the direct current driving unit and the alternating current driving unit, and the switching circuit is connected with the secondary energy storage modules in series and/or in parallel.

Preferably, the conversion circuit comprises a plurality of different series-parallel circuits.

The present invention also provides another power transmission device, including: the input component is connected with the direct current energy storage component; the output component comprises an alternating current equipment interface used for connecting alternating current equipment; a transfer member that transfers electrical energy from the input member to the output member; the switching component comprises a direct current driving unit, the direct current driving unit outputs breakpoint direct current to the alternating current equipment interface, and the breakpoint direct current is direct current with intermittent interrupted direct current output.

Preferably, the breakpoint direct current is interrupted periodically.

Preferably, the direct current lasts for a time period of greater than or equal to 20ms.

Preferably, the breakpoint direct current is interrupted when a preset condition is met, where the preset condition is that the electric energy transmission device detects that a main switch of an alternating current device connected to the electric energy transmission device receives a disconnection instruction.

Preferably, the breakpoint direct current is interrupted when a preset condition is met, where the preset condition is that the electric energy transmission device detects that a working parameter of a main switch of an alternating current device connected to the electric energy transmission device meets the breakpoint condition.

Preferably, the length of time that the dc output is interrupted is greater than or equal to 3ms.

Preferably, the adaptor component further comprises an alternating current driving unit, a detection unit, a controller and an output selection unit, wherein the alternating current driving unit outputs alternating current to the alternating current equipment interface, the detection unit detects working parameters related to characteristics of the alternating current equipment, and the controller controls the output selection unit to output alternating current or direct current alternatively according to a detection result of the detection unit.

Preferably, the detection unit detects power of the alternating current device; when the controller judges that the power of the alternating current equipment is smaller than or equal to a preset value, the controller controls the output selection unit to output alternating current to the alternating current equipment interface; and when the controller judges that the power of the alternating current equipment is greater than a preset power value, controlling the output selection unit to output the breakpoint direct current to the interface of the alternating current equipment.

Preferably, when the controller determines that the power of the ac equipment is greater than the preset power value, the controller further determines whether the ac equipment is suitable for being supplied with power by the breakpoint direct current, and when the determination result is yes, controls the output selection unit to output the breakpoint direct current to the ac equipment interface; and when the judgment result is negative, controlling the output selection unit to stop outputting the electric energy to the interface of the alternating current equipment.

Preferably, the specific way for the controller to further determine whether the ac device is suitable for being powered by the breakpoint dc power is that the detection unit detects an ac operating current value of the power transmission device when the ac device interface outputs the ac power and a dc operating current value of the power transmission device when the ac device interface outputs the dc power, when the dc operating current value and the ac operating current value satisfy a preset relationship, a determination result of the controller is yes, and when the dc operating current value and the ac operating current value satisfy a turn-off condition, a determination result of the controller is no.

Preferably, the turn-off condition is: the direct current working current value is more than 5 times of the alternating current working current value; or the direct current operating current value is greater than the alternating current operating current value by more than 10A.

Preferably, the controller limits the power of the alternating current or the direct current output to the interface of the alternating current device when judging whether the alternating current device is suitable for being supplied with power by the breakpoint direct current.

Preferably, in the process that the output selection unit outputs the alternating current to the alternating current device interface, if the detection unit detects that the power of the alternating current device is greater than the preset power value, the controller controls the output selection unit to output the breakpoint direct current to the alternating current device interface.

Preferably, in the process that the output selection unit outputs the breakpoint direct current to the ac device interface, if the detection unit detects that the power of the ac device is less than or equal to the preset power value, the controller controls the output selection unit to output the alternating current to the ac device interface.

Preferably, the direct-current energy storage component comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is a battery pack detachably arranged on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack, and the standard unit is provided with an output terminal for outputting voltage; the direct-current energy storage component comprises a plurality of secondary energy storage modules; the secondary energy storage module comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the switching component comprises a switching circuit, an input end of the switching circuit is connected with the input component, an output end of the switching circuit is connected with the direct current driving unit and the alternating current driving unit, and the switching circuit is connected with the secondary energy storage modules in series-parallel.

The present invention also provides another power supply system, which includes a dc energy storage component and an electric energy output device, wherein the electric energy transmission device includes: the input component is connected with the direct-current energy storage component; the output component comprises an alternating current equipment interface used for connecting alternating current equipment; the switching component transmits electric energy from the input component to the output component, comprises an alternating current driving unit and outputs alternating current to the alternating current equipment interface; the direct current energy storage component comprises: the system comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is a battery pack detachably mounted on the electric energy transmission device, and the battery pack is detachably mounted on the electric tool; the secondary energy storage module is a standard unit positioned in the battery pack, and the standard unit is provided with an output terminal for outputting voltage; the direct-current energy storage component comprises a plurality of secondary energy storage modules; the secondary energy storage modules comprise a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the alternating current driving unit boosts and inverts the electric energy of the output member to convert the electric energy into alternating current.

Preferably, the ac drive unit steps up the power of the ac power applied to the ac appliance interface in a soft start manner.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows: an electrical energy providing device, the electrical energy providing device comprising: a main body; the battery comprises a plurality of battery cells arranged in a main body, wherein the product of the voltage of the battery cells and the number of the battery cells is greater than or equal to 80V; the electric energy output device comprises a flexible connecting device, one end of the flexible connecting device is electrically connected with the battery core, the other end of the flexible connecting device is provided with an electric energy output interface, and the electric energy output interface is connected with an external electric tool and provides electric energy for the external electric tool; the voltage of the output of the electric energy output interface is more than 80V.

Preferably, the power output interface is matched with a battery pack mounting interface of an external electric tool.

Preferably, the power output interface is detachably connected with the flexible connecting device.

Preferably, the power supply device further comprises a wearing part connected to the main body, and the wearing part comprises a shoulder strap and/or a waist belt.

Preferably, the electric energy providing device further includes at least one battery pack case, the plurality of battery cells are accommodated in the at least one battery pack case, the battery pack case has a battery pack interface, and the battery pack interface is matched with a battery pack mounting interface of an external electric tool; the main part is provided with at least one battery pack accommodating position, the battery pack accommodating position is provided with an accommodating interface matched with the battery pack interface, and the battery pack shell is detachably arranged on the battery pack accommodating position.

Preferably, the battery cells accommodated in the battery pack case constitute at least two standard units, each standard unit includes a positive terminal and a negative terminal, and a plurality of battery cells electrically connected to each other are disposed between the positive terminal and the negative terminal.

Preferably, the product of the voltage of the battery cells and the number of the battery cells is about 120V, and the voltage output by the power output interface is about 120V.

The present invention also provides another electric energy supply device, including: a main body; a plurality of cells disposed in the body, a product of a voltage of the cells and a number of the cells being greater than or equal to 60V; the electric energy output device comprises a flexible connecting device, one end of the flexible connecting device is electrically connected with the battery cell, the other end of the flexible connecting device is provided with an electric energy output interface, and the electric energy output interface is connected with an external electric tool and provides electric energy for the external electric tool; the voltage transformation circuit is used for converting the voltage of the battery core into the output voltage of the electric energy output interface, when the voltage transformation circuit is in a first state, the electric energy output interface outputs the first voltage, when the voltage transformation circuit is in a second state, the electric energy output interface outputs the second voltage, and the first voltage is smaller than the second voltage.

Preferably, the power output interface is mated with a battery pack mounting interface of an external power tool.

Preferably, the electric energy providing device further includes at least one battery pack case, the plurality of battery cells are accommodated in the at least one battery pack case, the battery pack case has a battery pack interface, and the battery pack interface is matched with a battery pack mounting interface of an external electric tool; the main part is provided with at least one battery package and holds the position, the battery package is held the position and is had the interface of acceping that matches with the battery package interface, battery package casing detachably install in the battery package holds the position.

Preferably, the first voltage is lower than 60V and the second voltage is higher than 60V.

Preferably, the product of the voltage of the battery cells and the number of the battery cells is 120V, and the second voltage is 80V or 120V.

Preferably, the first voltage is 20V or 40V or 60V.

Preferably, the battery cells constitute at least two standard units, each standard unit includes a positive terminal and a negative terminal, and a plurality of battery cells electrically connected to each other are disposed between the positive terminal and the negative terminal.

Preferably, the voltage transformation circuit comprises a first series-parallel circuit and a second series-parallel circuit; when the transformation circuit is in a first state, the standard units form a first series-parallel relation through a first series-parallel circuit; when the transformation circuit is in a second state, a second series-parallel connection relation is formed between the standard units through a second series-parallel connection circuit.

Preferably, the power output device comprises a first power output device and a second power output device, and the first series-parallel circuit is arranged at the first power output device; the second series-parallel circuit is arranged in a second electric energy follower.

Preferably, the power output device includes a first power output device and a second power output device, the first power output device outputs a first voltage, and the second power output device outputs a second voltage.

Preferably, the main body further comprises a monitoring device, the monitoring device detects a signal at the power output interface, and the voltage transformation circuit adjusts the output voltage of the power output interface according to the signal detected by the monitoring device.

Preferably, the electric energy providing device further comprises an output component, the electric energy output device is detachably connected with the output component, and the voltage transformation circuit transforms the voltage of the battery core and transmits the voltage to the electric energy output interface through the output component; the voltage transformation circuit adjusts the voltage output to the output component according to the type of the electric energy output device connected to the output component.

Preferably, a switch is disposed between the voltage transformation circuit and the electric energy output interface, the electric energy supply device further includes an output voltage detection unit, the output voltage detection unit detects an output voltage of the voltage transformation circuit, and when the output voltage detection unit detects that the output voltage of the voltage transformation circuit is the same as a target voltage required by the electric energy output interface, the switch is turned on.

The present invention also provides an electric power transmission device, including: a main body; the input component is arranged on the main body and connected with the plurality of battery cells; the output component is arranged on the main body and at least comprises a first direct current equipment interface and a second direct current equipment interface; and the adapter component is arranged on the main body and transmits the electric energy from the input component to the output component.

Preferably, the first dc device interface and the second dc device interface have different structures.

Preferably, the output voltage of the first dc device interface is smaller than the output voltage of the second dc device interface.

Preferably, the main body further includes an interlock circuit disposed between the first dc device interface and the second dc device interface, and when the first dc device interface is connected to the electric device, the interlock circuit controls the second dc device interface not to output electric energy.

Preferably, the main body further includes an interlock structure disposed between the first dc device interface and the second dc device interface, and when the first dc device interface is connected to the electric device, the interlock structure disables the second dc device interface from accessing the electric device.

Preferably, the output component further comprises an alternating current device interface, and the alternating current device interface outputs alternating current.

The present invention also provides another power transmission device, including: a main body; the input component is arranged on the main body and connected with the plurality of battery cells; the output component is arranged on the main body and comprises a direct current equipment interface, the direct current equipment interface comprises a positive terminal, a negative terminal and an identification terminal, and the identification terminal detects the type of the electric equipment connected to the output component; the adapter component is arranged on the main body and transmits the electric energy from the input component to the output component; the switching component receives signals of the identification terminal and outputs corresponding electric energy to the positive terminal and the negative terminal.

The present invention also provides another electric energy supply device, including: a plurality of electric cores, aforementioned electric energy transmission device of any one.

In view of this, the present invention further provides a battery pack storage device and a battery pack system including the battery pack storage device, which are low in cost, good in compatibility, and high in practicability.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows: a wearable battery pack receiving apparatus, comprising: a main body; a wearing part connected to the main body, the wearing part including a shoulder strap and/or a waist belt; the main body is provided with at least one battery pack accommodating position for accommodating a battery pack, and the battery pack accommodating position is provided with an accommodating interface matched with a battery pack interface of the battery pack; the electric energy output device is electrically connected with the accommodating interface, an electric energy output interface is arranged on the electric energy output device, and the electric energy output interface is matched with a battery pack mounting interface of an external electric tool; the battery pack accommodating apparatus further includes: the transformer is positioned between the electric energy output interface and the accommodating interface and converts the input voltage at one end of the accommodating interface into the rated output voltage at one end of the electric energy output interface; a voltage regulator connected to the transformer, the voltage regulator controlling the transformer to regulate the value of the rated output voltage.

Preferably, the value of the rated output voltage is adjusted within a range of 20V to 120V.

Preferably, the voltage regulator is a monitoring device, the monitoring device monitors a signal or a parameter at the power output interface, and the value of the rated output voltage is regulated according to the signal or the parameter.

Preferably, the power output interface has a plurality of types, each type of power output interface is interchangeably mounted on the wearable battery pack accommodating device, and the monitoring device monitors a signal or a parameter representing the type of the power output interface and adjusts the value of the rated output voltage according to the type.

Preferably, the monitoring device monitors a signal or a parameter which is representative of the type of the power tool, the value of the setpoint output voltage being adjusted as a function of the type.

Preferably, the voltage regulator is an operation interface for a user to command a rated output voltage value.

Preferably, at least one of the receiving interfaces is identical to a battery pack mounting interface of the external power tool.

Preferably, the battery pack accommodating device is a backpack, the main body has a bottom attached to the back of the user, the main body is provided with a plurality of battery pack accommodating positions, and each battery pack accommodating position is flatly arranged on the bottom.

Preferably, the battery pack storage device further includes a charger for charging the battery pack stored therein, the charger having a charging interface connectable to an external power supply.

Preferably, the main body is provided with a plurality of battery pack accommodating positions, and a damping structure is arranged between the accommodating positions.

Preferably, the main body is provided with a vent hole.

Preferably, the main body comprises a bag body and a cover, the accommodating position is arranged in the bag body, the cover can close the bag body in an opening manner, and the cover comprises a waterproof layer.

Preferably, the body and/or the wearing part comprises an insulating protective layer.

The invention also provides a wearable battery pack system which comprises the wearable battery pack accommodating device and at least one battery pack, wherein the battery pack comprises a battery pack interface, and the battery pack interface is matched with at least one accommodating interface.

Preferably, the battery pack is oblong, and the thinnest part of the battery pack, which contains the battery, is less than 5cm in thickness.

Preferably, the battery pack contains no more than two layers of batteries in the thickness direction.

Preferably, the battery pack at least comprises a first body and a second body which are connected in a relatively displaceable manner, and a plurality of batteries are respectively accommodated in the first body and the second body; the battery pack interface is disposed on the first body.

Preferably, the case of the battery pack is made of a flexible material.

Preferably, the rated voltage of the battery pack is greater than 80v.

Preferably, the number of the battery packs is multiple, and the sum of rated voltages of the battery packs is greater than 80v.

Compared with the prior art, the invention has the beneficial effects that: the output voltage of the wearable battery pack accommodating device is adjustable, and the wearable battery pack accommodating device can be adapted to various different types of electric tools.

In view of the above, the present invention provides an operating system capable of driving an ac device by a dc power source, and a corresponding power transmission device and power supply device.

The technical scheme adopted by the invention for solving the problems in the prior art is as follows: an electrical energy transfer device comprising: the input component is connected with the direct-current energy storage component; the output component comprises an alternating current equipment interface used for connecting alternating current equipment; a transfer component that transfers electrical energy from the input component to the output component; the alternating current equipment interface comprises an alternating current equipment connecting end, and the alternating current equipment connecting end can output direct current electric energy.

Preferably, the ac device connection terminal is capable of outputting ac power.

Preferably, the ac device connection terminal includes a first port capable of selectively outputting ac power and dc power.

Preferably, the ac device connection terminal includes a first port and a second port, the first port outputs dc power, and the second port outputs ac power.

Preferably, the AC equipment connection terminal comprises a standard AC outlet.

Preferably, the voltage of the direct current energy is a standard AC voltage plus or minus 20V.

Preferably, the power transmission device further comprises an AC-DC inverter, and the AC power is provided by the inverter.

Preferably, the output power of the alternating current working electric energy is less than 300W.

Preferably, the output power of the alternating current working electric energy is less than 200W.

Preferably, the power transmission device further comprises an output selection module for selecting the working energy output mode of the connection terminal of the alternating current equipment.

Preferably, the power transmission device further comprises a detection unit for detecting an operating parameter related to the characteristics of the ac equipment. Preferably, the detection unit controls the connection end of the alternating current device to output test energy to detect the working parameter before outputting the working energy.

Preferably, the test energy is less than the operating energy.

Preferably, the detection unit monitors the test energy, and stops the test energy output when the output power of the test energy is smaller than a preset value.

Preferably, the output power of the alternating current working electric energy is less than 300W. And the detection unit monitors the test energy, and stops the test energy output when the output duration of the test energy reaches the preset time.

Preferably, the working parameters include dc working parameters under dc test energy and ac working parameters under ac test energy.

Preferably, the ac operating parameters are measured after a set time.

Preferably, the set time is 2 seconds.

Preferably, the dc operating parameter is measured within a set time.

Preferably, the set time is 1 second.

Preferably, when the working parameters meet the direct current output condition, the connecting end of the alternating current equipment is enabled to output direct current working electric energy.

Preferably, the dc output condition is that the dc test current value and the ac test current value satisfy a preset relationship.

Preferably, the preset relationship is as follows: the DC working current value is less than 5 times of the AC working current value. Preferably, the preset relationship is that the direct current working current is greater than a preset value and is less than 5 times of the alternating current working current value.

Preferably, when the working parameters meet the AC output condition, the AC equipment connecting end outputs AC working electric energy.

Preferably, the ac output condition is that the power of the ac device is less than a preset value.

Preferably, the preset value is less than 300W.

Preferably, the alternating current output condition is that the test current is smaller than a preset value.

Preferably, when the working parameters meet the turn-off condition, the connecting end of the alternating current equipment is enabled not to output electric energy.

Preferably, the turn-off condition is: the direct current working current value and the alternating current working current value meet a preset relation.

Preferably, the preset relationship is that the direct current working current value is greater than 5 times of the alternating current working current value, or the direct current working current value is greater than the alternating current working current value by more than 10A.

Preferably, the preset relation is that the alternating current working current is larger than a preset value.

Preferably, the energy storage component is a battery pack, and the input component includes a battery pack interface for connecting the battery pack.

Preferably, the input unit has a plurality of battery pack interfaces.

Preferably, at least two battery pack interfaces are different from each other.

Preferably, at least two battery pack interfaces are identical.

Preferably, the system further comprises a direct current device interface.

Preferably, the dc device interface is capable of outputting a plurality of different voltages.

Preferably, the dc device interface includes a plurality of dc device connection terminals, wherein at least two dc device connection terminals output different voltages.

Preferably, the dc device interface includes a dc device connection terminal that selectively outputs one of a plurality of different voltages.

Preferably, at least one of the plurality of output voltages is between 20v and 120v.

Preferably, the output voltage comprises at least two of 20v,40v,60v,80v,100v, 120v. Preferably, at least one of the output voltages is equal to or greater than 60v.

Preferably, the device further comprises an adapter for connecting the direct current device and the direct current device interface.

Preferably, the output interface of the adapter mates with the battery pack interface of the particular power tool.

Preferably, the adapter has a plurality of adapters, and the output interfaces of at least two adapters are different so as to be matched with different electric tools.

Preferably, the dc output interface outputs different voltages in accordance with the type of the adapter.

Preferably, the electric energy supply device is a wearable device.

The invention also provides another electric energy providing device, which comprises the electric energy transmission device and an energy storage component; the energy storage component comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is a battery pack detachably arranged on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack and is provided with an independent output terminal; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the output terminals of the secondary energy storage module are arranged on the battery pack housing.

Preferably, the electric energy transmission device outputs different voltages to the outside by changing the series-parallel connection relation between the secondary energy storage modules.

Preferably, the energy storage device comprises a plurality of primary energy storage modules.

Preferably, the at least one primary energy storage module comprises a plurality of secondary energy storage modules.

Preferably, the number of secondary energy storage modules in at least two primary energy storage modules is different.

Preferably, the at least one primary energy storage module comprises only one secondary energy storage module.

Preferably, the voltage of the secondary energy storage module is a divisor of the standard alternating-current voltage.

Preferably, the voltage of the primary energy storage module is a divisor of the standard alternating-current voltage.

Preferably, the voltage of the secondary energy storage module is 20v.

Preferably, the energy storage system comprises 6 secondary energy storage modules.

Preferably, the at least one primary energy storage module comprises 1 secondary energy storage module.

Preferably, the at least one primary energy storage module comprises 3 secondary energy storage modules.

Preferably, the secondary energy storage module comprises an independent control circuit.

The invention also provides a working system which comprises the electric energy supply device and an electric tool.

Preferably, the power tool is an alternating current power tool.

Preferably, the power tool is a dc power tool.

Preferably, the battery pack interface of the dc power tool is the same as one of the battery pack interfaces of the power transmission device.

The invention also provides an electric energy transmission method, which comprises the following steps: s1, accessing direct current electric energy from a direct current power supply; s2, detecting parameters of the accessed communication equipment; s3, judging whether the parameters meet direct current output conditions or not; and S4, if the judgment result in the step S3 is yes, transmitting the direct current electric energy to the alternating current equipment.

Preferably, step S2 includes: s21, outputting detection energy to alternating current equipment; s22, detecting the working parameters of the alternating current equipment under the detection energy.

Preferably, the detection energy includes direct current detection energy and alternating current detection energy, and the operating parameters include direct current operating parameters and alternating current operating parameters, respectively.

Preferably, the dc working parameter is a working current value under dc detection energy, the ac working parameter is a working current value under ac detection energy, and the step S3 includes: and comparing the relation between the direct current working current value and the alternating current working current value, and if the relation accords with the preset relation, judging that the working parameters meet the direct current output condition.

Preferably, the electric energy transmission method further includes the following steps: s5, judging whether the accessed alternating current equipment meets the alternating current output condition; and S6, if the judgment result in the step S4 is yes, transmitting the alternating current power to the alternating current equipment.

Preferably, the step S5 includes: and judging whether the power of the alternating current equipment is smaller than a preset value or not according to the alternating current working parameters, and if so, judging that the working parameters accord with the alternating current output conditions.

Preferably, the electric energy transmission method further includes the following steps: s7, judging whether the accessed alternating current equipment meets a turn-off condition; and S8, if the judgment result of S6 is yes, the electric energy transmission to the alternating current equipment is cut off. 8. According to the electric energy transmission method of 7, the direct current working parameter is a direct current value, the alternating current working parameter is an alternating current value, and the step S7 includes: and comparing the relation between the direct current working value and the alternating current value, and if the relation accords with the preset relation, judging that the working parameters meet the turn-off condition.

Preferably, the ac current value is measured after outputting the ac detection energy for a preset time.

Preferably, the dc current value is measured within a preset time of outputting the dc detection energy.

The invention also provides an electric energy transmission method of the electric energy transmission device, which comprises the following steps: s1, accessing direct current electric energy from a direct current power supply; s2, detecting parameters of the accessed alternating current equipment; s3, judging whether the parameters meet the alternating current output condition or not; and S4, if the judgment result in the step S3 is yes, transmitting the alternating current electric energy to the alternating current equipment.

Preferably, step S2 includes: sending alternating current detection energy to alternating current equipment; and detecting the working parameters related to the alternating current equipment under the alternating current detection energy.

Preferably, step S3 includes: and determining whether the power of the alternating current equipment is smaller than a preset value or not according to the working parameters, and if so, judging that the alternating current output condition is met.

The invention also provides an electric energy providing device, which comprises an electric energy transmission device and an energy storage component, wherein the energy storage component comprises a primary energy storage module, the primary energy storage module comprises a plurality of secondary energy storage modules, and the secondary energy storage module comprises a plurality of three-level energy storage modules; the primary energy storage module comprises a battery pack, and the battery pack is detachably arranged on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack and is provided with an independent output terminal; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules; the tertiary energy storage module comprises a battery cell.

Preferably, the electric energy transmission device provides a plurality of output voltages to the outside by changing the series-parallel relation among the secondary energy storage modules.

Preferably, the output voltage of the power supply device is N times the voltage value of the secondary module.

Preferably, N is 15 or less.

Preferably, the voltage of the primary energy storage module is the sum of the voltages of the secondary energy storage modules.

Preferably, the energy storage device comprises at least one primary energy storage module.

Preferably, the total number of primary modules is an odd number, and a single primary module contains an even number of secondary modules.

Preferably, the total number of primary modules is even, and a single primary module contains an odd or even number of secondary modules.

Preferably, the number of energy storage modules in at least two primary energy storage modules is different.

Preferably, the voltage of the primary energy storage module is a divisor of a standard alternating-current voltage.

Preferably, the voltage of the secondary energy storage module is one of 20v, 18v, 16v, 14.4v, 12v, 19.6v, 24v, 36v and 28 v.

Preferably, the electric energy transmission device comprises a controller, and when the electric energy supply device works, the controller monitors the installation condition of the primary energy storage module and correspondingly adjusts the series-parallel connection relationship of the secondary energy storage modules to maintain the output voltage unchanged.

Preferably, the electric energy transmission device comprises a controller, when the electric energy providing device works, the controller monitors the fault condition of the primary energy storage module and/or the secondary energy storage module, if a fault exists, the controller shields the faulty primary energy storage module and/or the faulty secondary energy storage module, and correspondingly adjusts the series-parallel connection relation of the secondary energy storage modules to maintain the output voltage unchanged.

Preferably, the battery cell is a lithium battery cell.

Preferably, the power transmission device comprises an output component, and the output component comprises a direct current output interface, and the direct current output interface outputs the plurality of output voltages.

Preferably, the dc device interface comprises a plurality of dc device connections, wherein at least two dc device connections output different output voltages.

Preferably, the dc device interface comprises a dc device connection that selectively outputs one of a plurality of different output voltages.

Preferably, the output voltage comprises at least two of 20v,40v,60v,80v,100v, 120v.

Preferably, at least one of the output voltages is greater than 60v.

Preferably, the system further comprises an adapter for connecting the direct current equipment and the direct current equipment interface.

The invention also provides a battery pack. A battery pack comprises a plurality of secondary energy storage modules, wherein the secondary energy storage modules are standard units positioned in the battery pack and are provided with independent output terminals; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the secondary energy storage module.

Preferably, the voltage of the secondary energy storage module is a divisor of a standard alternating-current voltage.

Preferably, the voltage of the secondary energy storage module is 20v.

The invention also provides an electric energy transmission device. An electric energy transmission device comprises an input component, an output component and a switching component, wherein the input component and an energy storage component are matched and connected to receive electric energy, the output component and electric equipment are matched and connected to output electric energy, and the switching component transmits the electric energy from the input component to the output component; the energy storage component comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is detachably arranged on a battery pack of the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack and is provided with an independent output terminal; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules; the three-level energy storage module is an electric core positioned in the two-level energy storage module, the input port of the input component is connected with the output interface of each two-level energy storage module, and the switching component provides different output voltages for the output component by changing the series-parallel relation among the two-level energy storage modules.

Preferably, the switching component correspondingly changes the series-parallel relation of the secondary energy storage modules according to the characteristics of the equipment connected with the output component and outputs a specific output voltage.

Preferably, the output component comprises an output port, a plurality of judgment electrodes are arranged in the output port, and the switching component provides corresponding specific output voltage for the output component according to the connection condition of the judgment electrodes.

Preferably, the adapter further comprises an adapter which comprises an output end and an input end, wherein the input end is connected with the output port of the output component in a matching mode, the input end is provided with a characteristic electrode, and the adapter component determines the output voltage according to the characteristic electrode connected with the judgment electrode.

Preferably, the power transmission device is a wearable device.

The invention also provides an electric energy transmission device, which comprises the following components in part by weight: an electrical energy transfer device comprising: the input interface is used for connecting the direct-current energy storage component and receiving the electric energy of the direct-current energy storage component; the alternating current equipment interface is electrically connected with the input interface, is used for connecting alternating current equipment and supplying power to the alternating current equipment, and can output direct current electric energy.

Preferably, the control circuit is located between the input interface and the ac device interface, and controls the transfer of electrical energy from the input interface to the ac device interface.

Preferably, the control circuit includes an ac driving unit, and the ac driving unit converts the dc power received by the input interface into ac power to be provided to the ac device interface.

Preferably, the ac device interface includes an ac device connection terminal, the ac device connection terminal is a single port, and the ac device connection terminal can selectively output dc power and ac power.

Preferably, the ac device interface includes two ac device connection terminals, the ac device connection terminals are a single port, one of the ac device connection terminals is capable of outputting dc power, and the other is capable of outputting ac power.

Preferably, the alternating current equipment connection end is a standard AC socket.

Preferably, the voltage of the direct current electric energy is between 100 volts and 140 volts, or between 200V and 260V.

Preferably, the output power of the alternating current electric energy is less than 300W.

Preferably, the output power of the alternating current electric energy is less than 200W.

Preferably, the control circuit includes a dc driving unit, an ac driving unit, a detecting unit, an output selecting unit and a controller, the dc driving unit outputs the electric energy received from the input interface in a dc manner, the ac driving unit outputs the electric energy received from the input interface in an ac manner, the output selecting unit connects the dc driving unit and the ac driving unit to the ac device interface alternatively, the detecting unit detects an operation parameter of the control circuit, and the controller connects and controls the dc driving unit, the ac driving unit, the detecting unit and the output selecting unit.

Preferably, the controller comprises a test control unit, a detection control unit, a safety judgment unit and an output control unit; the test control unit enables the control circuit to output test energy to the alternating current equipment interface by controlling the output selection unit; the detection control unit receives test operation parameters measured by the detection unit under the test energy; the safety judgment unit judges whether the alternating current equipment connected with the alternating current equipment interface is suitable for the direct current electric energy or the alternating current electric energy to drive work according to the test operation parameters; the output control unit receives the judgment result of the safety judgment unit, controls the output selection unit to correspondingly connect one of the direct current drive unit and the alternating current drive unit to the alternating current equipment interface, or controls the control circuit to turn off the electric energy output to the alternating current equipment interface.

Preferably, when the safety judgment unit judges that the ac device connected to the ac device interface is suitable to be driven by the dc power, the output control unit controls the output selection unit to connect the dc driving unit to the ac device interface.

Preferably, when the safety judgment unit judges that the ac device connected to the ac device interface is suitable to be driven by ac power, the output control unit controls the output selection unit to connect the ac driving unit to the ac device interface.

Preferably, when the safety judgment unit judges that the ac device connected to the ac device interface is not suitable for being driven by the ac circuit or the dc power, the output control unit controls the control circuit to turn off the power output to the ac device interface.

Preferably, the test energy includes a direct current test energy and an alternating current test energy, and the output duration and/or the output power of the direct current test energy and the alternating current test energy are limited by preset parameters.

Preferably, the operation parameters include a direct current operation parameter under direct current test energy and an alternating current operation parameter under alternating current test energy.

Preferably, the safety judgment unit judges whether the alternating current equipment is suitable for the direct current electric energy or the alternating current electric energy to drive to work according to the relative relation between the direct current operation parameter and the alternating current operation parameter.

Preferably, the controller comprises a test control unit, a detection control unit, a safety judgment unit and an output control unit; the test control unit enables the control circuit to output test energy to the alternating current equipment interface by controlling the output selection unit; the detection control unit receives test operation parameters measured by the detection unit under the test energy; the safety judgment unit judges whether the alternating current equipment connected with the alternating current equipment interface is suitable for direct current electric energy driving work or not according to the test operation parameters; and the output control unit receives the judgment result of the safety judgment unit, controls the output selection unit to correspondingly connect the direct current drive unit to the alternating current equipment interface, or controls the control circuit to turn off the electric energy output to the alternating current equipment interface.

Preferably, the controller comprises a test control unit, a detection control unit, a safety judgment unit and an output control unit; the test control unit enables the control circuit to output test energy to the alternating current equipment interface by controlling the output selection unit; the detection control unit receives test operation parameters measured by the detection unit under the test energy; the safety judgment unit judges whether the alternating current equipment connected with the alternating current equipment interface is suitable for alternating current power driving work or not according to the test operation parameters; the output control unit receives the judgment result of the safety judgment unit, controls the output selection unit to correspondingly connect the alternating current driving unit to the alternating current equipment interface, or controls the control circuit to cut off the electric energy output to the alternating current equipment interface.

The invention also provides an electric energy providing device, and particularly relates to the electric energy providing device which comprises the electric energy transmission device and the direct-current energy storage component.

The invention also provides a working system which comprises the electric energy supply device and the alternating current equipment which is selectively connected with the alternating current equipment interface.

The invention also provides an electric energy transmission system, in particular to an electric energy transmission system which comprises an electric energy transmission device and an adapter, wherein the electric energy transmission device comprises a direct current equipment interface, a plurality of groups of output terminals are arranged on the direct current equipment interface, and each group of terminals comprises a positive electrode and a negative electrode; the adapter and the direct current equipment interface can be detachably connected in a matching mode, the input interface of the adapter is matched with the output interface of the direct current equipment, the output interface of the adapter comprises a group of output terminals, each output terminal comprises a positive electrode and a negative electrode, series-parallel circuits are arranged between a plurality of groups of input terminals and a group of output terminals of the adapter, and after the series-parallel circuits are configured in series-parallel relation among the plurality of groups of terminals, electric energy is transmitted to the output terminals.

Preferably, the power transmission system further comprises an input interface, a plurality of sets of input terminals are arranged on the input interface, and each set of terminals comprises a positive electrode and a negative electrode.

Preferably, a plurality of adapters which can be interchangeably connected to the dc device interface are included, wherein at least two output voltages are different from each other.

Preferably, the plurality of sets of input terminals of the input interface and the plurality of sets of output terminals of the dc device interface are the same in number and are connected one to one.

Preferably, the number of the groups of input terminals of the input interface is the same as that of the groups of output terminals of the direct current equipment interface, and the input terminals and the output terminals are connected in a two-to-one manner.

Preferably, the input interface comprises at least one battery pack interface comprising a plurality of sets of input terminals.

Preferably, the input interface comprises a plurality of battery pack interfaces, each of which comprises at least one set of input terminals.

Preferably, the number of the input terminals of the input interface is 6 or 12, and the number of the output terminals of the dc device interface is 6.

Preferably, the serial-parallel circuit of the adapter connects 6 sets of input terminals to the output terminal of the adapter in series after each 2 sets of input terminals are connected in parallel.

Preferably, the serial-parallel circuit of the adapter connects 6 sets of input terminals to the output terminal of the adapter in series after connecting them in parallel every 3.

Preferably, the serial-parallel circuit of the adapter connects the 6 sets of input terminals to the output terminals of the adapter after connecting the input terminals in parallel with each other.

Preferably, the serial-parallel circuit of the adapter connects 6 sets of input terminals to each other in series and then to the output terminals of the adapter.

The invention also provides an electric energy providing system, which comprises the electric energy transmission system and a direct current energy storage component.

Preferably, each battery pack and the interface further comprise at least one set of signal terminals thereon.

Preferably, the signal terminal includes a temperature signal terminal.

Preferably, the adapter is connected with the direct current equipment and the electric energy transmission device, a plurality of groups of terminals are arranged on an input interface of the adapter, each group of terminals comprises a positive electrode and a negative electrode, and a series-parallel circuit is arranged in the adapter.

The invention also provides an adapter, in particular to an adapter which is connected with the direct current equipment and the electric energy transmission device and is provided with a protection circuit.

Preferably, the protection circuit includes at least one of an overcurrent protection circuit, an undervoltage protection circuit, and an overtemperature protection circuit.

The invention also provides an electric energy transmission device, which particularly comprises an output port and a power supply connector for matching and connecting electric equipment, wherein a starting switch 261-II is arranged in the output port, the starting switch 261-II controls the on and off of the electric energy transmission device, and when the power supply connector is matched and connected with the output port, the starting switch 261-II is triggered to be switched on.

Preferably, the start switch 261-II is a microswitch.

Preferably, when the power connector is separated from the output port, the start switch 261-II is triggered to be turned off.

Preferably, the output port is an ac device connection terminal.

The invention also provides an electric energy transmission device, which particularly comprises a detection unit, a controller and a power-off unit, wherein the detection unit detects the load condition of the connected electric equipment, the power-off unit can be selectively disconnected to stop the electric energy output of the electric energy transmission device to the electric equipment, the controller is connected with the detection unit and the power-off unit, the controller instructs the power-off unit to be disconnected when the load condition meets a preset condition, and the preset condition is that the load is less than a preset value and reaches a preset duration.

Preferably, the detection unit detects a load condition of the electric device by detecting a current in the control point circuit.

The invention also provides another electric energy transmission device, and particularly relates to an electric energy transmission device which comprises an input interface, a control circuit and an output interface, wherein the output interface comprises a plurality of connecting ends for connecting external equipment, and interlocking mechanisms are arranged among the connecting ends, so that only one of the connecting ends can transmit electric energy to the external electric equipment at the same time.

Preferably, the output interface includes a dc device interface and an ac device interface, and the dc device interface and the ac device interface each include at least one of the connection terminals.

Preferably, the interlocking mechanism is a mechanical interlocking mechanism.

Preferably, mechanical interlocking mechanism is including setting up the locking piece on each link to and the interlock piece between each locking piece, the locking piece is movable between latched position and unblock position, and when latched position, the locking piece forbids the power end electricity connection of link and consumer, and when the unblock position, the locking piece allows the power end electricity connection of link and consumer; and when any connecting end is electrically connected with the power end, the locking piece is fixed at the unlocking position, and the locking piece drives the linkage piece to enable all other locking pieces to be fixed at the locking position.

Preferably, the connecting ends are jacks, the number of the connecting ends is two, the mechanical interlocking mechanism is a locking rod, the locking rod is located between the two jacks, two ends of the locking rod movably extend into the two jacks respectively to form two locking pieces, and the part between the two ends of the locking rod forms the linkage piece.

Preferably, the interlock mechanism is an electronic interlock mechanism.

The invention also provides a working system, in particular to a working system which comprises a battery pack, an electric energy transmission device and a direct current tool; the working voltage of the direct current tool is more than 60V; the battery pack is supported in a working system through a battery pack supporting device, the electric energy transmission device and the direct current tool are arranged in a separated mode, the electric energy transmission device outputs electric energy to the direct current tool through the cable type electric energy output portion, the battery pack supporting device is only arranged on the electric energy transmission device, and an electric energy input interface on the direct current tool only comprises a port matched with the cable type electric energy output portion.

Preferably, the direct current tool is a hand-held tool.

The invention also provides a dc tool powered by a power transfer device separate from the dc tool, the power transfer device including a battery pack support structure to support the weight of a battery pack thereon, the power input interface including only a port to mate with a cable power output of the power transfer device.

Preferably, the direct current tool is a hand-held tool.

The invention also provides another direct current tool, and the electric energy input interface can not be connected with a battery pack.

The invention also provides a working system, in particular to a working system which comprises a battery pack, an electric energy transmission device and a hand-push type electric tool; the hand-push type electric tool comprises a push rod and a main body, and a battery pack interface and a cable type electric energy output part interface are arranged on the hand-push type electric tool and are respectively used for connecting a battery pack and a cable type electric energy output part.

Preferably, the cable type power output interface is located on the push rod.

Preferably, the cable type power output interface is positioned at the upper part of the push rod.

Preferably, the battery pack interface is located on the body.

Preferably, the battery pack interface is provided in plurality.

Preferably, the operating voltage of the hand-push type electric tool is more than 50V.

Preferably, the working voltage of the hand-push type electric tool is 120V, the number of the battery pack interfaces is two, and the voltage of the battery pack is 60V.

Preferably, the hand-push type electric tool can be supplied with power only by one of the battery pack and the cable type power output portion.

Preferably, the hand-push type electric tool can be simultaneously supplied with power by the battery pack and the cable type power output part.

Preferably, the battery pack interface of the hand-push type electric tool is connected in parallel with the cable type electric energy output part interface.

Preferably, the hand-push type electric tool is a mower.

The invention also provides a hand-push tool, which is as described in any one of the preceding claims.

The invention also provides an electric energy transmission device which comprises an input interface, an alternating current equipment interface and a control circuit, wherein the control circuit comprises an alternating current driving unit, the alternating current driving unit converts direct current input by the input interface into alternating current to supply to the alternating current equipment interface, the input interface is used for connecting a battery pack, and the alternating current is square wave alternating current.

Preferably, the ac driving unit includes a bridge circuit.

Preferably, the control circuit includes a dc driving unit, and the dc driving unit provides the dc power input by the input interface to the ac device interface in the form of dc power.

Preferably, the power of the alternating current driving unit is less than or equal to 2000 watts.

Preferably, the power of the alternating current driving unit is less than or equal to 1000 watts.

Preferably, the power of the ac driving unit is 1000w,1500w or 2000W or more.

The invention also provides a charger, particularly, the charger comprises a protection circuit, and particularly, the charger is provided with an overcharge protection circuit and an over-temperature protection circuit. The overcharge protection circuit provides independent protection for each secondary energy storage module; the over-temperature protection circuit provides individual protection for each battery pack.

In particular, the charger is integrated in the power transfer device.

Specifically, the two battery packs can be charged only at the same time, and cannot be charged individually.

The present invention also provides a power supply system, including: a battery pack, the battery pack comprising: a plurality of standard battery cells having the same voltage; a series-parallel circuit connected to the plurality of standard battery cells, the series-parallel circuit selectively configuring a series-parallel relationship of the plurality of standard battery cells to enable the battery pack to output different output voltages in a plurality of series-parallel relationships; an output interface for outputting the electric energy of the battery pack; the series-parallel circuit comprises switching devices, the number of the switching devices is one less than that of the standard battery units, the switching devices are arranged in a staggered mode with the standard battery units on the circuit, each switching device comprises two sub-switches, the first sub-switch is connected with the anodes of the two standard battery units in an off state, and the first sub-switch is disconnected with the anodes of the two standard battery units in an on state; the second sub-switch is connected with the cathodes of the two standard battery units in an off state and connected with the cathode of the previous standard battery unit and the anode of the next standard battery unit in an on state; the two sub-switches in each switching device are linked to have a first state and a second state, wherein in the first state, both the sub-switches are on, and in the second state, both the sub-switches are off; the switching devices are controlled to be in different state combinations, so that the series-parallel circuit is in different series-parallel relations.

Specifically, the battery pack comprises 6 standard battery units and 5 switching devices.

Specifically, the output interface includes a plurality of positive output terminals corresponding to the plurality of output voltages, each of the output terminals is connected to a terminal switch, and on/off of the terminal switch is linked with a series-parallel relationship of the series-parallel circuit, so that in a specific series-parallel relationship, only the terminal switch of the positive output terminal corresponding to the output voltage in the relationship is turned on, and the other terminal switches are turned off.

Specifically, the terminal switch is a relay, and the relay is controlled by a controller in the power supply system.

Specifically, the switch device is a microswitch, and the power supply system further includes an output voltage selection member, and when the output voltage selection member is located at different positions, the output voltage selection member triggers the microswitches to be turned on and off in different combinations so as to configure different series-parallel relationships.

Specifically, the micro switch is a double normally-open double normally-closed micro switch.

Specifically, the series-parallel relationship includes at least two of the following: 1. all the switching devices are in the second state; 2. the third switching device arranged in sequence is in the first state, and other switching devices are in the second state; 3. the second and fourth switching devices arranged in sequence are in a first state, and the other switching devices are in a second state; 4. all switching devices are in a first state.

Specifically, the switching device is a relay.

Specifically, the relay is a double normally open and double normally closed relay.

Specifically, each of the switching devices includes two relays, which respectively constitute the first sub-switch and the second sub-switch.

Specifically, the first sub-switch and the second sub-switch are linked through an optical coupler, and when the first sub-switch is switched on, the optical coupler is triggered to switch on the second sub-switch.

Specifically, the power supply system automatically controls the on-off of each relay by detecting the type of the accessed electric equipment, so that the battery pack outputs a voltage value corresponding to the type of the electric equipment.

Specifically, a switch is arranged between the battery pack and the output interface, the power supply system further comprises a battery pack output voltage detection unit, and the switch is turned on only when the output voltage detection unit detects that the output voltage of the battery pack is the same as the target voltage required to be output by the power supply system.

The invention also provides a power supply system, which comprises a battery pack and an AC drive circuit 270-II, wherein the AC drive circuit 270-II is used for outputting AC electric energy externally, the AC drive circuit 270-II can output square wave or trapezoidal wave alternating current, and the AC drive circuit 270-II comprises a booster circuit so as to realize that the output voltage of the AC drive circuit 270-II is higher than that of the battery pack.

Specifically, the device further comprises a DC driving circuit 270-II for outputting DC power to the outside.

Specifically, the boosting amplitude of the boosting circuit does not exceed 20%.

Specifically, the AC driving circuit 270-ii includes an H-bridge circuit to output square wave or trapezoidal wave alternating current.

The present invention also provides another power supply system including a battery pack and a DC driving circuit 270-ii to externally output DC power, the DC driving circuit 270-ii outputting a break DC power.

Specifically, the breakpoint time of the breakpoint direct current is less than 0.5s.

Compared with the prior art, the invention has the beneficial effects that: the application range is wide, and the energy can be provided for various alternating current and direct current tools; the portability is good; the safety is high, and the machine cannot be burnt when the alternating current equipment is driven by direct current; the energy conversion efficiency is high.

In view of the above, the present invention provides an operating system capable of driving an ac powered device by a dc power source, and a corresponding power transmission device and a power supply device.

The invention provides a power supply system, which comprises a body; the direct current output interface and the alternating current output interface are positioned on the body; a battery pack support device located on the body; a battery pack detachably mounted on the battery pack support device; the battery pack comprises a plurality of standard battery units, a battery pack and a battery pack, wherein the standard battery units are positioned in the battery pack, have the same voltage and are provided with independent positive and negative electrodes; the interface circuit is positioned in the body and is connected with the positive and negative electrodes of each standard battery unit to form a plurality of pairs of mutually independent positive and negative leads; a series-parallel circuit in the body, the series-parallel circuit configuring a series-parallel relationship of the plurality of pairs of positive and negative leads to form a predetermined DC voltage; the direct current and alternating current inverter is connected with the series-parallel circuit and converts the direct current voltage into alternating current voltage to be supplied to an alternating current output interface; the series-parallel circuit is also connected with the direct current output interface.

Preferably, the series-parallel circuit forms a direct current voltage of 120V.

Preferably, the dc-ac inverter converts the dc voltage into a square wave or a trapezoidal wave ac through an H-bridge circuit.

Preferably, the dc output interface and the ac output interface share a discharge protection circuit.

Preferably, the dc output interface and the ac output interface are the same.

Preferably, the power supply system further includes: the interface circuit is positioned in the body and is connected with the positive and negative electrodes of each standard battery unit to form a plurality of pairs of mutually independent positive and negative leads; and the second direct current output interface is positioned on the body and is provided with a plurality of pairs of output positive and negative electrodes which are respectively and correspondingly connected with the plurality of pairs of positive and negative electrode leads.

Preferably, the power supply system further includes: a plurality of adapters, which are alternatively connected to the second direct current output interface, wherein the adapters comprise an input end, a transmission line and an output end, a plurality of pairs of input positive and negative electrodes are arranged on the input end, the input positive and negative electrodes and the output positive and negative electrodes are paired one by one, the input positive and negative electrodes are connected with a series-parallel circuit to configure the series-parallel relation of the standard battery units, and a specific output voltage is formed at the output end of the adapter; the series-parallel circuits of the plurality of adapters are different from each other to form different output voltages; and the control circuit in the body comprises a discharge protection circuit, and the discharge protection circuit detects a discharge protection program of the discharge protection circuit selected according to the adapter connected with the second direct current output interface.

Preferably, the power supply system further includes: the interlocking structure is arranged among the direct current output interface, the alternating current output interface and the second direct current output interface, and when the direct current output interface or the alternating current output interface is connected with electric equipment, the second direct current output interface does not output electric energy.

Preferably, the control circuit selects the discharge protection program according to a voltage value formed by the series-parallel circuit.

Preferably, the adapter outputs the output voltage formed by the series-parallel circuit to the power supply circuit, and the power supply circuit includes a voltage detection device to detect the voltage value of the received output voltage.

Preferably, the rated voltage of the standard battery unit is 20V, the plurality of pairs of power leads are 6 pairs and are matched with one or more pairs of standard battery units which are connected in parallel with each other; the series-parallel circuits of the different adapters form output voltages of 20V,40V or 60V respectively.

The present invention also provides another power supply system, including: a body; a battery pack support device located on the body; a battery pack detachably mounted on the battery pack support device; the battery pack comprises a plurality of standard battery units, a battery pack and a battery pack, wherein the standard battery units are positioned in the battery pack, have the same voltage and are provided with independent positive and negative electrodes; the interface circuit is positioned in the body and is connected with the positive and negative electrodes of each standard battery unit to form a plurality of pairs of mutually independent positive and negative leads; the direct current output interface is positioned on the body and is provided with a plurality of pairs of output positive and negative electrodes which are respectively and correspondingly connected with the plurality of pairs of positive and negative electrode leads; a plurality of adapters, one of which is connected to the DC output interface, wherein the adapter comprises an input end, a transmission line and an output end, a plurality of pairs of input positive and negative electrodes are arranged on the input end, the input positive and negative electrodes and the output positive and negative electrodes are paired one by one, the input positive and negative electrodes are connected with a series-parallel circuit to configure the series-parallel relation of the standard battery units, and a specific output voltage is formed at the output end of the adapter; the series-parallel circuits of the plurality of adapters are different from each other to form different output voltages; and the control circuit in the body comprises a discharge protection circuit, and the discharge protection circuit detects a discharge protection program of the discharge protection circuit selected according to the adapter connected with the direct current output interface.

Preferably, the power supply circuit includes a voltage conversion device that converts the output voltage received from the adapter into a specific voltage value to supply power to the control circuit.

Preferably, the discharge protection program includes performing a battery protection action when the discharge current exceeds a preset threshold; or, when the discharge voltage is lower than the preset threshold value, the battery protection action is carried out.

Preferably, the battery protection action includes turning off a discharge circuit.

Preferably, the power supply system further includes: a series-parallel circuit in the body, the series-parallel circuit configuring a series-parallel relationship of the plurality of pairs of positive and negative leads to form a preset direct current voltage; the direct current and alternating current inverter is connected with the series-parallel circuit and converts the direct current voltage into alternating current voltage to be supplied to an alternating current output interface; and the series-parallel circuit is also connected with another direct current output interface.

Preferably, the other dc output interface and the ac output interface share a discharge protection circuit.

The present invention also provides another power supply system, including: a battery pack support device; a battery pack detachably mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy; a DC output part outputting DC power; the control circuit is used for connecting the battery pack to the direct current output component and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output component, and converting the electric energy of the battery pack into alternating current electric energy to be supplied to the alternating current output interface; the rated output voltage of the alternating current output interface is N times of the rated output voltage of the direct current output component, wherein N is a positive integer smaller than 10.

Preferably, the rated output voltage of the alternating current output interface is 120V.

Preferably, the rated output voltage of the direct current output component can be selected to be 20V,40V and 60V.

Preferably, the rated output voltage of the direct current output part is 20V,40V or 60V.

Preferably, the rated voltage of the standard battery unit is 20V, and the rated output voltage of the alternating current output interface is 6 times of the rated voltage of the standard battery unit; the rated output voltage of the direct current output interface is 1 time, 2 times, 3 times or 6 times of the rated voltage of the standard battery unit.

Preferably, the power supply system includes a plurality of battery packs, each of the battery packs includes a plurality of standard battery units, each of the standard battery units is identical and has an independent positive electrode and an independent negative electrode, and the rated output voltage of the ac output interface is an integral multiple of the rated voltage of the standard battery unit; the rated output voltage of the direct current output component is integral multiple of the rated voltage of the standard battery unit.

Preferably, the dc output component includes a dc output interface and an adapter selectively connected to the dc output interface, and the adapter has a serial-parallel circuit built therein, and the serial-parallel circuit performs serial-parallel configuration on each standard battery cell to obtain a preset rated voltage.

The present invention also provides another power supply system, including: a battery pack support device; a battery pack detachably mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy; the direct current output interface outputs direct current electric energy; the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output interface, and converting the electric energy of the battery pack into alternating current electric energy to be provided to the alternating current output interface; the adapter comprises an input end and an output end, the input end is detachably connected with the direct current output interface, and the output end is detachably connected with the electric energy input interface of the electric tool.

Preferably, a plurality of said adapters are included for selectively connecting said dc output interface.

Preferably, the control circuit selects to transmit the electric energy of the battery pack to the direct current output interface or the alternating current output interface.

Preferably, the battery pack support device includes a wearing structure for a user to wear the battery pack support device on the body.

Preferably, the battery pack support device is a backpack, and the wearing structure includes a harness.

Preferably, the battery pack supporting device is provided with a battery pack access interface.

The present invention also provides another power supply system, including: a battery pack support device comprising a donning structure for a user to wear on; a battery pack detachably mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy; the direct current output interface outputs direct current electric energy; and the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output interface, and converting the electric energy of the battery pack into alternating current electric energy to be provided to the alternating current output interface.

Preferably, the battery pack supporting device is a backpack, and the wearing structure includes a harness.

Preferably, the power supply system further comprises an adapter including an input end and an output end, the input end is detachably connected to the dc output interface, and the output end is detachably connected to the electric energy input interface of the electric tool.

Preferably, the power supply system further includes a plurality of adapters selectively connected to the dc output interface, and the adapters include a series-parallel circuit configured to connect each standard battery cell in series-parallel to obtain a predetermined rated voltage.

The invention also provides a power supply platform, comprising: a battery pack support device; a battery pack mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy; the direct current output component can selectively output direct current electric energy of one of various voltages; and the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output component, and converting the electric energy of the battery pack into alternating current electric energy to be supplied to the alternating current output interface.

Preferably, the battery pack is detachably mounted on the battery pack support device.

Preferably, the dc output unit includes a dc output interface and an adapter, and the adapter has a series-parallel circuit built therein, and the series-parallel circuit performs series-parallel configuration on each standard battery cell to obtain a preset rated voltage.

Preferably, the adapter is a power tool adapter.

Preferably, the battery pack has a plurality of standard battery cells, and the standard battery cells are isolated from each other and have the same configuration.

Preferably, the rated voltage of the standard battery cell is 20V.

Preferably, the number of the adapters is plural, and the preset voltage is at least two of 20V, 40V, 60V and 120V.

The present invention also provides a power supply system, including: a battery pack support device; a battery pack mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy with rated output voltage between 110V and 130V; and the control circuit converts the electric energy of the battery pack into alternating current electric energy and provides the alternating current electric energy to the alternating current output interface.

Preferably, the rated output voltage is 120V.

Preferably, the control circuit comprises a voltage transformation part and a DC-AC inversion part; the voltage transformation part is a series-parallel circuit, and the series-parallel circuit transforms the voltage of the battery pack into the rated output voltage of the alternating current output interface by configuring the series-parallel relation of the battery pack.

Preferably, the control circuit comprises a voltage transformation part and a DC-AC inversion part; the DC-AC inversion part converts direct current into square wave alternating current or trapezoidal wave alternating current through an H-bridge circuit.

Preferably, the battery pack supporting device is a wearable device.

Preferably, the power supply system further includes a dc output interface for outputting dc power, and the control circuit transfers the power of the battery pack to the dc output interface.

The present invention also provides another power supply system, including: a battery pack support device; a battery pack mounted on the battery pack support device; the alternating current output interface outputs square wave or trapezoidal wave alternating current electric energy; and the control circuit converts the electric energy of the battery pack into alternating current electric energy and provides the alternating current electric energy to the alternating current output interface.

Preferably, the rated output voltage of the alternating current output interface is between 110V and 130V of alternating current power.

Preferably, the control circuit comprises a transformation part and a DC-AC inversion part; the voltage transformation part is a series-parallel circuit, and the series-parallel circuit transforms the voltage of the battery pack into the rated output voltage of the alternating current output interface by configuring the series-parallel relation of the battery pack.

Preferably, the control circuit comprises a transformation part and a DC-AC inversion part; the DC-AC inversion part converts direct current into square wave alternating current or trapezoidal wave alternating current through an H-bridge circuit.

Preferably, the battery pack supporting device is a wearable device.

Preferably, the rated output voltage is 120V.

The present invention also provides another power supply system, including: a battery pack support device; a plurality of battery packs mounted on the battery pack support device, the plurality of battery packs including a plurality of standard cells, the plurality of standard cells having the same nominal voltage; the direct current output interface outputs direct current electric energy; the control circuit transmits the electric energy of the battery pack to the direct current output interface; the adapter is detachably connected between the direct current output interface and the electric equipment; the adapter is internally provided with a series-parallel circuit, and the series-parallel circuit forms direct current electric energy with preset voltage by configuring the series-parallel relation of the plurality of standard units.

Preferably, the power supply system includes a plurality of the adapters, and the series-parallel circuits of at least two of the adapters are different from each other.

Preferably, the plurality of adapters are alternatively connected to the direct current output interface.

Preferably, the control circuit comprises an outgoing line, the outgoing line leads out the positive and negative electrodes of the standard unit to the direct current output interface, and a plurality of pairs of output positive and negative electrodes are formed on the direct current output interface.

Preferably, the outgoing lines are divided into a plurality of groups, each group of outgoing lines comprises a plurality of pairs of input positive and negative electrodes and a pair of output positive and negative electrodes, the input positive and negative electrodes are connected with the positive and negative electrodes of the standard unit, and the plurality of pairs of input positive and negative electrodes are connected to the output positive and negative electrodes after being connected in series-parallel.

Preferably, the pairs of input positive and negative electrodes are connected to the output positive and negative electrodes in parallel.

Preferably, the circuit configurations of the groups of the outlet are identical to each other.

The present invention also provides another power supply system, including: the battery packs comprise a plurality of standard battery units, and the standard battery units are consistent with each other and respectively comprise a plurality of single batteries; a series-parallel circuit that forms a direct current power having a preset voltage by configuring a series-parallel relationship of the plurality of standard cells, the preset voltage being a minimum rated voltage of the standard battery cell.

Preferably, the power supply system further comprises a battery pack supporting device; the battery packs are arranged on the battery pack supporting device; the direct current output interface outputs direct current electric energy; the control circuit transmits the electric energy of the battery pack to the direct current output interface; the adapter is detachably connected between the direct current output interface and the electric equipment; the adapter is internally provided with a series-parallel circuit, and the series-parallel circuit forms direct current electric energy with preset voltage by configuring the series-parallel relation of the plurality of standard units.

Preferably, the adapters are alternatively connected to the dc output interface.

The present invention also provides another power supply system, including: a battery pack support device; a battery pack mounted on the battery pack supporting device; the alternating current output interface outputs alternating current electric energy; the direct current output interface outputs direct current electric energy; the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output interface, and converting the electric energy of the battery pack into alternating current electric energy to be provided to the alternating current output interface; and the direct current output interface and the alternating current output interface select one to output electric energy to the outside.

Preferably, an interlock structure is arranged between the dc output interface and the ac output interface, and when one of the dc output interface and the ac output interface is connected to an external device, the interlock structure prohibits the other of the dc output interface and the ac output interface from outputting electric energy externally.

Preferably, the control circuit includes a dc power supply circuit, an ac power supply circuit, and an electric energy switching mechanism, and the electric energy switching mechanism prohibits one of the dc power supply circuit and the ac power supply circuit from supplying power to the outside when the other of the dc power supply circuit and the ac power supply circuit supplies power to the outside.

Preferably, the distance between the direct current output interface and the alternating current output interface is less than 15CM.

The present invention also provides a power supply system, including: a battery pack support device; a battery pack mounted on the battery pack support device; the electric energy output interface outputs electric energy outwards in a discharge mode; the control circuit transmits the electric energy of the battery pack to an electric energy output interface; the charging interface receives external electric energy and transmits the external electric energy to the battery pack in a charging mode; the power supply system is alternatively in a charging mode and a discharging mode.

Preferably, the battery pack includes a standard cell having a preset rated voltage, and the power supply system includes a plurality of standard cells.

Preferably, in the charging mode and the discharging mode, the series-parallel relationship of the plurality of standard cells is different.

Preferably, the electric energy output interface comprises a direct current output interface and an alternating current output interface, and the charging interface and the direct current output interface are the same interface.

The invention also provides a power supply platform, comprising: a battery pack support device to which a battery pack can be detachably attached; the alternating current output interface outputs alternating current electric energy; the direct current output interface outputs direct current electric energy; the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output interface, and converting the electric energy of the battery pack into alternating current electric energy to be provided to the alternating current output interface; the power supply platform can work in a first working mode and a second working mode, and the number of the battery packs mounted on the battery pack supporting device in the first working mode is N times that of the battery packs mounted in the second working mode.

Preferably, the battery pack supporting device comprises a plurality of battery pack interfaces, the battery pack interfaces are divided into a plurality of groups, and each group comprises N battery pack interfaces.

Preferably, in the first working mode, 1 battery pack is accessed to each group of battery pack interfaces; and in the second working mode, N battery packs are accessed into each group of battery pack interfaces.

Preferably, said N is equal to 2.

Preferably, the battery pack interfaces in each group of battery pack interfaces are connected in parallel with each other.

The invention also provides a power supply system, which comprises the power supply platform and a battery pack which is safe on the power supply platform, wherein the power supply system comprises: the battery packs are consistent with each other, and the rated voltage is larger than 50V.

Preferably, the rated voltage of the battery pack is greater than 60V.

The present invention also provides a power supply system, including: a battery pack support device; a battery pack detachably mounted on the battery pack support device; the direct current output interface outputs direct current electric energy; the control circuit transmits the electric energy of the battery pack to the direct current output interface; the adapter is detachably connected between the direct current output interface and the electric equipment; the control circuit comprises a battery pack detection circuit, a battery pack protection circuit is arranged in the adapter, the battery pack detection circuit detects battery pack information and sends the battery pack information to the battery pack protection circuit, and the battery pack protection circuit sends a corresponding control instruction according to the battery pack information.

Preferably, the battery pack detection circuit includes at least one of a temperature detection part, a current detection part, and a voltage detection part; the battery pack protection circuit is internally provided with a preset condition, and when the received temperature information, or the received current information, or the received voltage information does not accord with the preset condition, a control instruction for stopping the battery pack or a control instruction for enabling the power supply system to externally send a warning signal is sent out.

Preferably, a plurality of battery pack interfaces are arranged on the battery pack supporting device, the battery pack detection circuit comprises a connection detection component, and the detection component detects whether a battery pack is installed on the battery pack interface.

Preferably, the battery pack includes a standard cell, and the power supply system includes a plurality of standard cells; the adapter comprises a voltage selection circuit which configures the series-parallel connection relation of each standard unit to form a preset voltage; the power supply system comprises at least two replaceable adapters connected to the direct current output interface, and the series-parallel circuits of the at least two adapters are different and have different preset conditions.

The invention also provides a power supply platform, comprising: a body comprising a base supporting the body on a work surface; a battery pack supporting device on the body for accommodating the battery pack; a wearing member adapted to be worn on a user; a direct current output interface for outputting direct current; the power supply platform has a base mode and a wearing mode, and the base supports the body on a working surface in the base mode; the body is supported on the user through the wearing part in the wearing mode.

Preferably, the wearing part is detached from the body in the base mode, and the wearing part is connected to the body in the wearing mode.

Preferably, the device further comprises an alternating current output interface for outputting alternating current to the outside.

Preferably, the body comprises a gripping part for being carried by a user.

Preferably, the wearing part comprises a shoulder strap, and when the wearing part is connected to the body, the power supply platform forms a backpack.

Preferably, the main board protection component at least mostly surrounds the main board and is hard.

Preferably, when the power supply platform is worn on the user through the wearing part, the length direction axis of the battery pack basically extends vertically relative to the ground; when the power supply platform is placed on a supporting surface through the base of the body, the length direction axis of the battery pack is basically parallel or vertical to the supporting surface.

Preferably, the chassis and the wearing part are located on different sides of the body.

The invention also provides a battery pack which comprises a plurality of secondary energy storage modules, wherein each secondary energy storage module is a standard unit positioned in the battery pack and is provided with an independent output terminal; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules;

The third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the voltage of the secondary energy storage module is 20v.

The invention also provides an electric energy providing device, which comprises the electric energy transmission device and an energy storage component; the energy storage component comprises a primary energy storage module, a secondary energy storage module and a tertiary energy storage module; the primary energy storage module is a battery pack detachably mounted on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack and is provided with an independent output terminal; the energy storage component comprises a plurality of secondary energy storage modules; each secondary energy storage module has the same voltage and comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

Preferably, the electric energy transmission device outputs different voltages to the outside by changing the series-parallel relation between the secondary energy storage modules.

Preferably, the voltage of the secondary energy storage module is 20v.

Preferably, the power tool is an alternating current power tool.

Preferably, the power tool is a dc power tool.

The invention also provides a battery pack which comprises a plurality of standard units which are electrically isolated from each other, wherein the sum of rated voltages of the standard units is more than 50V.

Preferably, the sum of the voltages of the plurality of standard cells is 60V or 120V.

Preferably, the rated voltage of the standard cell is 20V.

The invention also provides a battery pack which comprises a battery pack interface, wherein a plurality of groups of positive and negative electrodes are arranged on the battery pack interface, each group of positive and negative electrodes are respectively connected to mutually identical and mutually independent standard units, and each standard unit comprises a plurality of battery cores.

Preferably, the battery pack interface is provided with 3 pairs or 6 pairs of positive and negative electrodes.

Preferably, the rated voltage of the standard cell is 20V.

Preferably, the battery pack interface further comprises a signal electrode.

Preferably, the signal electrode is a temperature electrode, a voltage electrode or a type recognition electrode.

The present invention also provides a power supply system, including: a battery pack support device; a battery pack detachably mounted on the battery pack support device; the alternating current output interface outputs alternating current electric energy; the direct current output interface outputs direct current electric energy; the control circuit is used for connecting the battery pack to the direct current output interface and the alternating current output interface, transmitting the electric energy of the battery pack to the direct current output interface, and converting the electric energy of the battery pack into alternating current electric energy to be provided to the alternating current output interface; and the heat dissipation device dissipates heat for the battery pack.

Preferably, the heat dissipation device is a fan that generates an air flow through the battery pack.

The invention also provides a power supply platform, comprising: a body; the battery pack supporting device is positioned on the body, and a battery pack interface is arranged on the battery pack supporting device; the electric energy output interface outputs the electric energy of the battery pack; the main board is provided with a control circuit, and the control circuit transmits the electric energy of the battery pack to the electric energy output interface; : the battery pack interface is provided with a plurality of groups of positive and negative electrodes, each group of positive and negative electrodes are respectively connected to mutually consistent and mutually independent standard units, and each standard unit comprises a plurality of battery cores.

Preferably, the battery pack interface further comprises a signal electrode.

Preferably, the signal electrode is a temperature signal electrode.

The invention also provides a power supply platform, comprising: a body; the battery pack supporting device is positioned on the body, and a battery pack interface is arranged on the battery pack supporting device; the electric energy output interface outputs the electric energy of the battery pack; the main board is provided with a control circuit, and the control circuit transmits the electric energy of the battery pack to the electric energy output interface; the battery pack supporting device comprises a plurality of battery pack interfaces, the battery pack interfaces are divided into a plurality of groups, each group comprises a plurality of battery pack interfaces, each positive electrode and each negative electrode in each group of battery pack interfaces are electrically isolated from each other, and the corresponding positive electrodes and the corresponding negative electrodes in different groups are connected in parallel.

Preferably, the battery pack interfaces are divided into 2 groups.

Preferably, each set includes 2 battery pack interfaces.

Preferably, the power output interface comprises an alternating current output interface, the control circuit comprises a series-parallel circuit and a DC-AC inverter, the series-parallel circuit connects the battery pack interfaces of the groups in series to each other and then connects the battery pack interfaces to the DC-AC inverter, and the DC-AC inverter converts the received direct current power into alternating current power and provides the alternating current power to the alternating current output interface.

Preferably, the power supply platform comprises a battery pack installation indicating device, and the battery pack installation indicating device indicates a user to install the battery pack in the cost support device in a manner that each group of battery pack interfaces are filled with or empty of battery packs.

Preferably, each battery pack interface comprises a plurality of positive and negative electrodes.

Preferably, the electric energy output interface comprises a direct current output interface, the control circuit leads out positive and negative electrodes of each battery pack interface to the direct current output interface, and multiple positive and negative electrodes in one-to-one correspondence with each battery pack interface are formed on the direct current output interface.

The invention also provides a power supply system which comprises the power supply platform, and the power supply system also comprises a battery pack detachably mounted on the battery pack supporting device.

Preferably, the battery pack includes a plurality of standard cells.

The invention also provides a power supply platform, comprising: a body; the battery pack supporting device is positioned on the body, and a plurality of battery pack interfaces are arranged on the battery pack supporting device; the electric energy output interface outputs the electric energy of the battery pack; the main board is provided with a control circuit, and the control circuit transmits the electric energy of the battery pack to the electric energy output interface; : the protection device is used for covering the battery pack interface when the battery pack is installed.

The invention also provides a power supply platform, comprising: a body; the battery pack supporting device is positioned on the body, and a plurality of battery pack interfaces are arranged on the battery pack supporting device; the direct current output interface outputs the electric energy of the battery pack; the main board is provided with a control circuit, and the control circuit transmits the electric energy of the battery pack to the electric energy output interface; : and a plurality of positive and negative electrodes are arranged on each battery pack interface, the control circuit comprises a power supply lead, the positive and negative electrodes on the battery pack interfaces are directly led out by the power supply lead, or are led out to the direct current output interface after being grouped and configured in series-parallel, and a plurality of positive and negative electrodes are formed on the direct current output interface.

And the power supply lead of the power supply system leads out the pairs of positive and negative electrodes in each group to the direct current output interface after the pairs of positive and negative electrodes are connected in parallel.

The invention also provides a power supply platform which comprises a direct current output interface, wherein a plurality of groups of positive and negative electrodes are arranged on the direct current output interface, each group of positive and negative electrodes are respectively connected to mutually consistent and mutually independent standard units, and each standard unit comprises a plurality of battery cores.

Preferably, the direct current output interface is provided with 3 pairs or 6 pairs of positive and negative electrodes.

Preferably, the rated voltage of the standard cell is 20V.

Preferably, the dc output interface further includes a signal electrode.

Preferably, the signal electrode is a temperature signal electrode.

The present invention also provides a power supply system, including: a battery pack support device; a battery pack mounted on the battery pack support device; the direct current output interface outputs direct current electric energy; the control circuit transmits the electric energy of the battery pack to the direct current output interface; and the direct current output interface is provided with a locking structure for locking the equipment connected to the direct current output interface.

Preferably, the device further comprises an adapter, wherein the adapter is provided with an input end for connecting the direct current output interface and an output end for connecting the electric equipment; the input end is provided with a locking structure, and the locking structure of the input end is matched with the locking structure of the direct current output interface.

The invention also provides an adapter, which comprises an input end and an output end, wherein the input end is provided with an input interface, the input interface is provided with a plurality of pairs of positive and negative electrodes, the adapter also comprises a series-parallel circuit, and the series-parallel circuit is connected to a pair of output positive and negative electrodes of the output end after configuring the series-parallel relation of the plurality of pairs of positive and negative electrodes.

Preferably, the input interface is provided with 6 positive and negative electrodes.

Preferably, the series-parallel circuit connects the 6 pairs of positive and negative electrodes in parallel with each other to the output positive and negative electrodes.

Preferably, the series-parallel circuit connects every 2 pairs of positive and negative electrodes in series in a group, and then connects each group in parallel to the output positive and negative electrodes.

Preferably, the series-parallel circuit connects every 3 pairs of positive and negative electrodes in series in a group, and then connects each group in parallel to the output positive and negative electrodes.

Preferably, the series-parallel circuit connects the 6 pairs of positive and negative electrodes to the output positive and negative electrodes after being connected in series with each other.

The invention also provides an adapter which comprises an input end and an output end, wherein the input end is provided with an input interface, and the input interface is provided with a plurality of pairs of positive and negative electrodes.

Preferably, the input interface is provided with 3 pairs or 6 pairs of positive and negative electrodes.

Preferably, the input interface further comprises a signal electrode.

Preferably, the signal electrode is a temperature signal electrode.

The invention also provides an adapter, which comprises an input end, an output end and a transmission line positioned between the output end and the output end, wherein the input end is connected with a power supply system, and the output end is connected with electric equipment; the transmission lines include a pair of equipment transmission lines for transmitting electric energy from the input end to the output end, and a plurality of signal lines for transmitting signals between the input end and the output end.

Preferably, the transmission line further comprises a pair of PCB transmission lines therein, and the PCB transmission lines transmit the electric energy from the output end to the input end.

Preferably, the adapter includes a battery pack control circuit, and the signal lines include a signal line that transmits a signal from the input terminal to the output terminal and a signal line that transmits a signal from the output unidirectional input terminal.

Preferably, the signal line transmits at least one of a temperature signal, a voltage signal, and a current signal.

The invention also provides another adapter which comprises an input end, an output end and a transmission line positioned between the output end and the output end, wherein the input end is connected with a power supply system, and the output end is connected with electric equipment; a battery pack protection circuit is further arranged in the adapter and comprises a signal input end and a signal output end, and the signal input end receives a signal representing the parameter of the battery pack; and the signal output end sends out a control signal aiming at the battery pack according to the signal received by the signal input end.

Preferably, the signal input end receives at least one of a temperature signal, a current signal and a voltage signal; the battery pack protection circuit is internally provided with a preset condition, and when the received temperature signal and/or current signal and/or voltage signal are not in accordance with the preset condition, a control signal for stopping the battery pack is sent out, or a control instruction for enabling the power supply system to send out a warning signal is sent out.

The invention also provides another adapter which comprises an input end connected with a power supply system, an output end connected with electric equipment and a transmission line positioned between the input end and the input end, wherein the adapter is divided into a universal part and an adapting part detachably connected with the universal part, the input end is positioned in the universal part, and the output end is positioned in the adapting part.

Preferably, at least a majority of the transmission line is located in the adapter portion.

Preferably, the adapter includes a plurality of adapter portions that are alternatively connected to the universal portion.

Preferably, the output end is in the shape of a battery pack.

Preferably, the common portion has a first interface, and the adapting portion has a second interface, the first interface and the second interface being mated to be connected or disconnected.

Preferably, the first interface is a cable connector.

The invention also provides an adapter, which comprises a cylindrical body, an input end, an output end and a transmission line positioned between the input end and the output end, wherein a circuit board is arranged in the body, and the shape of the circuit board is matched with the shape of the cross section of the subject.

Preferably, the circuit board is disposed perpendicular to a central axis of the main body.

Preferably, the body is located between the input and the transmission line.

Preferably, a series-parallel circuit is arranged on the circuit board, the input end comprises a plurality of pairs of positive and negative electrodes, and the series-parallel circuit is connected to the output end after being configured with series-parallel relation of the plurality of pairs of positive and negative electrodes.

Preferably, a battery pack protection circuit is arranged on the circuit board, a signal electrode is arranged on the input end, and the battery pack protection circuit correspondingly outputs a control signal to control the connected battery pack according to the received signal.

The invention also provides an adapter, which comprises a body, an input end, an output end and a transmission line positioned between the input end and the output end, wherein the body comprises a control circuit, the output end comprises an equipment inspection element, and the equipment inspection element triggers the control circuit to start when detecting that the equipment is connected with the electric equipment.

Preferably, the device inspection element is a microswitch.

The invention also provides an adapter which comprises a body, an input end connected with a power supply system, an output end connected with the electric tool, and a transmission line positioned between the input end and the output end, wherein the output end is a cable type joint, the diameter width of the cable type joint is less than 3cm, and the weight of the cable type joint is less than 200 g.

Preferably, the body includes a series-parallel circuit, the input end includes a plurality of pairs of positive and negative electrodes, the series-parallel circuit connects the plurality of pairs of positive and negative electrodes to the positive and negative electrodes of the output end after the series-parallel circuit is configured in series-parallel, and the series-parallel circuit connects at least two pairs of positive and negative electrodes in series.

The invention also provides a power supply platform, comprising: a battery pack support device to which a battery pack can be detachably attached; the alternating current output interface outputs alternating current electric energy; the control circuit converts the direct current electric energy into alternating current electric energy and transmits the alternating current electric energy to the alternating current output interface; the control circuit further comprises a load detection mechanism, and the load detection mechanism detects the load condition of the electric equipment connected with the alternating current output interface; when the load is lower than the preset value, the control circuit cuts off the electric energy output to the alternating current output interface.

Preferably, the load detection mechanism is a current detection unit.

Preferably, the control circuit comprises a DC-AC inverter, and the control circuit turns off the inverter when the load is lower than a preset value.

The invention also provides a power supply platform, comprising: a battery pack support device to which a battery pack can be detachably attached; the alternating current output interface outputs alternating current electric energy; the control circuit converts the direct current electric energy into alternating current electric energy and transmits the alternating current electric energy to the alternating current output interface; the alternating current output interface comprises a device checking element, and the device checking element triggers the control circuit to start when detecting that the alternating current output interface is connected with the electric device.

Preferably, the device inspection element is a microswitch.

The invention also provides an electric energy transmission device, which comprises an output port and a power supply connector for matching with electric equipment, wherein a starting switch is arranged in the output port, the starting switch controls the electric energy transmission device to be switched on and off, and the starting switch is triggered to be switched on when the power supply connector is matched with the output port.

Preferably, the start switch is a microswitch.

Preferably, when the power connector is separated from the output port, the start switch is triggered to be turned off.

Preferably, the output port is an ac consumer connection terminal.

The invention also provides a hand-push type direct current tool, which comprises a push rod, a body and a moving part for supporting the body on the ground, and further comprises: a battery pack interface for connecting a battery pack, including an electrical connection part and a battery pack support part; the transmission line interface is used for connecting the cable type connector and comprises an electric connection part and a mechanical butt joint part.

Preferably, the battery pack interface and the transmission line interface are connected in parallel.

Preferably, the transmission line interface is located on the push rod.

Preferably, the transmission line interface is arranged on or near a part of the push rod for holding by a user.

The invention also provides a working system which comprises a battery pack, an electric energy transmission device and a hand-push type electric tool; the hand-push type electric tool comprises a push rod and a main body, and a battery pack interface and a cable type electric energy output part interface are arranged on the hand-push type electric tool and are respectively used for connecting a battery pack and a cable type electric energy output part.

Preferably, the cable type electric energy output part interface is positioned on the push rod.

Preferably, the cable type electric energy output part interface is positioned at the upper part of the push rod.

Preferably, the battery pack interface is located on the body.

Preferably, the battery pack interface is a plurality of interfaces.

Preferably, the hand-push type electric tool is a mower.

The invention also provides a hand tool as defined in any one of the preceding claims.

The invention also provides a hand-push type direct current tool, which comprises a push rod, a body and a moving part for supporting the body on the ground, and further comprises: the transmission line interface is used for connecting the cable type connector and comprises an electric connection part and a mechanical butt joint part, and the transmission line interface is arranged on the push rod.

The invention also provides a handheld direct current tool which comprises an electric energy input interface, wherein the electric energy input interface is a transmission line type interface and is used for connecting a transmission line type joint.

Preferably, the rated input voltage of the power input interface is greater than 50V.

Preferably, the rated input voltage of the power input interface is between 100V and 140V or between 50V and 70V.

Preferably, the power input interface comprises a locking structure for locking the transmission line connector in the power input interface.

The invention also provides a working system which comprises a battery pack, an electric energy transmission device and a direct current tool; the working voltage of the direct current tool is more than 60V; the battery pack is supported in a working system through a battery pack supporting device, the electric energy transmission device and the direct current tool are arranged in a separated mode, the electric energy transmission device outputs electric energy to the direct current tool through the cable type electric energy output portion, the battery pack supporting device is only arranged on the electric energy transmission device, and an electric energy input interface on the direct current tool only comprises a port matched with the cable type electric energy output portion.

Preferably, the direct current tool is a hand-held tool.

The invention also provides a direct current tool, and the electric energy input interface can not be connected with a battery pack.

The invention also provides a charger, which comprises an output end, a main body and an AC plug which are sequentially connected, wherein an electric energy output interface is arranged on the output end, a plurality of pairs of positive and negative electrodes are arranged on the electric energy output interface, the charging station comprises a series-parallel circuit, and the series-parallel circuit is connected with the plurality of pairs of positive and negative electrodes.

Compared with the prior art, the invention has the beneficial effects that: the application range is wide, and the energy can be provided for various alternating current and direct current tools; the portability is good; the safety is high, and the machine cannot be burnt when the alternating current electric equipment is driven by direct current; the energy conversion efficiency is high.

The invention also solves the technical problem of providing a new battery pack, so that a certain number of battery units in the battery pack can output various different voltage values, power is conveniently supplied to electric tools with different rated voltages, and the use cost of a user is saved.

In order to solve the technical problem, the technical scheme of the invention is as follows: a multi-voltage output battery pack for a power tool, the battery pack comprising at least two battery cells, each battery cell having a positive terminal and a negative terminal; the battery pack further comprises a voltage conversion device, the voltage conversion device comprises an input end and an output end, the input end is electrically connected with the at least two battery units, the output end is used for outputting voltage, the input end comprises at least two groups of electrode contacts corresponding to the number of the battery units, each group of electrode contacts comprises an anode contact and a cathode contact, the anode contact is electrically connected with the anode terminal, the cathode contact is electrically connected with the cathode terminal, and the voltage conversion device conducts serial and/or parallel combination on the at least two battery units so that the output end can output different voltage values.

Compared with the prior art, the invention has the beneficial effects that: the battery packs are connected in series and/or in parallel in different modes through the voltage conversion device, so that the battery packs output different voltage values, the same battery pack can be suitable for electric tools with different rated voltages, and the use cost of electric tool users is saved.

As a further improvement of the present invention, the voltage conversion device changes the connection lines between the sets of electrode contacts and between the electrode contacts and the output terminal to adjust the combination of the serial connection and/or the parallel connection of the at least two battery cells.

As a further improvement of the invention, the input end comprises a group of electrode contacts, wherein the group of electrode contacts b are connected in parallel, and the group of electrode contacts a/b are connected in series, wherein b is a positive divisor of a.

As a further improvement of the present invention, a =6,b =6, and the input terminal includes 6 sets of electrode contacts, wherein the positive pole of each set of electrode contacts is connected to the positive pole of the output terminal, and the negative pole of each set of electrode contacts is connected to the negative pole of the output terminal.

As a further improvement to the present invention, a =6,b =3, the input terminal includes 6 sets of electrode contacts, wherein a positive electrode of the 1 st set of electrode contacts is connected to a negative electrode of the 2 nd set of electrode contacts, a negative electrode of the 1 st set of electrode contacts is connected to a negative electrode of the output terminal, and a positive electrode of the 2 nd set of electrode contacts is connected to a positive electrode of the output terminal; the positive electrode of the 3 rd group of electrode contacts is connected with the negative electrode of the 4 th group of electrode contacts, the negative electrode of the 3 rd group of electrode contacts is connected with the negative electrode of the output end, and the positive electrode of the 4 th group of electrode contacts is connected with the positive electrode of the output end; the positive pole of the 5 th group of electrode contacts is connected with the negative pole of the 6 th group of electrode contacts, the negative pole of the 5 th group of electrode contacts is connected with the negative pole of the output end, and the positive pole of the 6 th group of electrode contacts is connected with the positive pole of the output end.

As a further improvement of the present invention, a =6,b =2, the input terminal includes 6 sets of electrode contacts, wherein a positive electrode of the 1 st set of electrode contacts is connected to a negative electrode of the 2 nd set of electrode contacts, a positive electrode of the 2 nd set of electrode contacts is connected to a negative electrode of the 3 rd set of electrode contacts, a negative electrode of the 1 st set of electrode contacts is connected to a negative electrode of the output terminal, and a positive electrode of the 3 rd set of electrode contacts is connected to a positive electrode of the output terminal; the positive pole of the 4 th group of electrode contacts is connected with the negative pole of the 5 th group of electrode contacts, the positive pole of the 5 th group of electrode contacts is connected with the negative pole of the 6 th group of electrode contacts, the negative pole of the 4 th group of electrode contacts is connected with the negative pole of the output end, and the positive pole of the 6 th group of electrode contacts is connected with the positive pole of the output end.

As a further improvement of the present invention, a =6,b =1, the input terminal includes 6 sets of electrode contacts, wherein a negative electrode of the 1 st set of electrode contacts is connected to a negative electrode of the output terminal, a positive electrode of the 1 st set of electrode contacts is connected to a negative electrode of the 2 nd set of electrode contacts, a positive electrode of the 2 nd set of electrode contacts is connected to a negative electrode of the 3 rd set of electrode contacts, a positive electrode of the 3 rd set of electrode contacts is connected to a negative electrode of the 4 th set of electrode contacts, a positive electrode of the 4 th set of electrode contacts is connected to a negative electrode of the 5 th set of electrode contacts, a positive electrode of the 5 th set of electrode contacts is connected to a negative electrode of the 6 th set of electrode contacts, and a positive electrode of the 6 th set of electrode contacts is connected to a positive electrode of the output terminal.

As a further improvement of the present invention, the a battery cells may form c different voltage values, where c is the number of positive divisor of a.

As a further improvement of the present invention, the battery cell is a lithium ion battery cell.

As a further improvement of the invention, the battery unit comprises at least one battery.

As a further improvement of the present invention, the voltage value of each battery unit is 12V.

As a further improvement of the present invention, the voltage value of each battery cell is 20V.

In addition, another technical problem to be solved by the present invention is to provide a power tool system, so that battery packs containing the same number of battery units can supply power for different power tools.

In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides an electric tool system, includes electric tool, still includes the group battery of a many voltage output, the group battery includes two at least battery unit, electrode terminals is all drawn forth to every battery unit, the group battery still includes voltage conversion equipment, voltage conversion equipment includes the input that corresponds electrode terminals and the output that is used for output voltage, thereby voltage conversion equipment exports different voltage values through carrying out series connection and/or parallelly connected combination with the battery unit of same number.

Compared with the prior art, the invention has the beneficial effects that: the battery pack capable of outputting different voltage values can be detachably connected with electric tools with different rated voltages so as to supply power for different electric tool systems.

Currently, an operator typically uses a battery pack to power the electrical device. When the power consumption of the electric equipment is large, an operator connects the battery pack through a simple lead connection mode to ensure that the electric equipment can normally operate. However, need often switch connecting wire and adjust output voltage in order to satisfy the user demand of different electrical apparatus, this can lead to the connecting wire damaged, can arouse the short circuit when serious, simultaneously, operating personnel switches connecting wire repeatedly, and the process is loaded down with trivial details, influences efficiency, and the operating personnel of not being convenient for uses.

Based on this, it is necessary to provide a battery pack support structure which can reduce the damage of the connecting wires and further cause the occurrence of short circuit phenomenon, ensure the use safety of operators and realize the rapid adjustment of output voltage aiming at the problems that the existing battery pack is easy to damage and inconvenient to adjust the output voltage due to the connection of the connecting wires.

The above purpose is realized by the following technical scheme: a battery pack holder structure includes a holder body and a control device installed in the holder body; the bracket body is provided with a battery pack clamp which comprises at least two battery pack clamping parts; the battery pack clamp is provided with a positive electrode outgoing line and a negative electrode outgoing line, and the positive electrode outgoing line and the negative electrode outgoing line are respectively and electrically connected with the control device; the bracket body is also provided with a conversion control piece which is electrically connected with the control device; the support body is further provided with an output part for outputting voltage, the output part is electrically connected with the positive electrode outgoing line and the negative electrode outgoing line, and the conversion control part is suitable for adjusting the output voltage of the output part.

Preferably, the shift control member has at least two voltage steps.

Preferably, the control device comprises a microcontroller, and the microcontroller is electrically connected with the positive electrode outgoing line and the negative electrode outgoing line; the microcontroller is adapted to control a battery pack output voltage in the battery pack clamp.

Preferably, the control device further comprises a gear detection module, and the gear detection module is electrically connected with the microcontroller and the conversion control member respectively; the gear detection module is suitable for detecting the voltage gear adjusted by the conversion control part, the detected voltage gear is fed back to the microcontroller by the gear detection module, and the microcontroller controls the output voltage of a battery pack in the battery pack clamp.

Preferably, the control device further comprises a voltage detection module, and the voltage detection module is electrically connected with the positive outgoing line and the microcontroller respectively; the voltage detection module is suitable for detecting the voltage sum of all battery packs in the battery pack clamp, and when the voltage sum of all battery packs in the battery pack clamp reaches a preset voltage value, the microcontroller controls the battery packs in the battery pack clamp to stop outputting voltage.

Preferably, the control device further comprises a current detection module and a sampling resistor, the current detection module is electrically connected with the negative lead wire and the microcontroller respectively, and the sampling resistor is electrically connected with the negative lead wire and the current detection module respectively; the current detection module is suitable for detecting the output current of a battery pack in the battery pack clamp, and when the output current is higher than a preset current value, the microcontroller controls the battery pack in the battery pack clamp to stop outputting voltage.

Preferably, the control device further comprises a temperature detection module, and the temperature detection module is electrically connected with the battery pack clamp and the microcontroller respectively; the temperature detection module is suitable for detecting the temperature of the battery pack in the battery pack clamp, and when the temperature of a certain battery pack is higher than a preset temperature, the microcontroller controls the battery pack in the battery pack clamp to stop outputting voltage.

Preferably, the control device further comprises a pulse width adjusting module, and the pulse width adjusting module is electrically connected with the positive outgoing line, the output part and the microcontroller respectively; the pulse width adjusting module is suitable for controlling the pulse width duty ratio so as to adjust the output voltage of the output part, the conversion control part adjusts the voltage gear, the gear detection module feeds the detected voltage gear back to the microcontroller, the microcontroller controls the pulse width adjusting module to adjust the output voltage of the output part, and the output voltage is output by the output part.

Preferably, the control device further comprises at least two relays, two ends of coils of the at least two relays are respectively and electrically connected with the microcontroller and the circuit power supply, contacts of the at least two relays are respectively and electrically connected to the at least two battery pack clamping parts, the conversion control part adjusts the voltage gear and feeds the voltage gear signal back to the microcontroller, and the microcontroller controls the relays to be opened or closed to enable the at least two battery pack clamping parts to be connected in parallel or in series.

Preferably, the control device comprises a shifting lever, the shifting lever is controlled by the conversion control part in a shifting manner, and the shifting lever is respectively connected with the at least two battery pack clamping parts; the conversion control part adjusts the voltage gear, and the conversion control part stirs the shifting rod to enable the at least two battery pack clamping parts to be connected in parallel or in series.

Preferably, the switching control member is a switching knob or a shift switch.

Preferably, the output part comprises a direct current output end and an alternating current output end, and the direct current output end is electrically connected with the positive electrode outgoing line and the negative electrode outgoing line of the battery pack clamp; the control device further comprises a DC/AC conversion module, the positive electrode outgoing line and the negative electrode outgoing line of the battery pack clamp are electrically connected with the DC/AC conversion module, and the alternating current output end is electrically connected with the DC/AC conversion module.

Preferably, the battery pack clamping part is provided with an elastic piece, and the size of the accommodating space of the battery pack clamping part is adjusted through compression or stretching of the elastic piece.

Preferably, the at least two battery pack holding portions are connected in series.

Preferably, the number of the battery pack clamping portions is three, and the three battery pack clamping portions are respectively a first battery pack clamping portion, a second battery pack clamping portion and a third battery pack clamping portion, wherein a positive electrode of the first battery pack clamping portion is electrically connected to the positive electrode outgoing line, and a negative electrode of the third battery pack clamping portion is electrically connected to the negative electrode outgoing line; the number of the relays is six, and the relays are respectively a first relay, a second relay, a third relay, a fourth relay, a fifth relay and a sixth relay; two contacts of the first relay are respectively and electrically connected with the negative electrode of the first battery pack clamping part and the positive electrode of the second battery pack clamping part; two contacts of the second relay are respectively and electrically connected with the negative electrode of the second battery pack clamping part and the positive electrode of the third battery pack clamping part; two contacts of the third relay are respectively and electrically connected with the positive electrode of the first battery pack clamping part and the positive electrode of the second battery pack clamping part; two contacts of the fourth relay are respectively and electrically connected with the positive electrode of the first battery pack clamping part and the positive electrode of the third battery pack clamping part; two contacts of the fifth relay are respectively and electrically connected with the negative electrode of the second battery pack clamping part and the negative electrode of the third battery pack clamping part; two contacts of the sixth relay are respectively and electrically connected with the negative electrode of the first battery pack clamping part and the negative electrode of the third battery pack clamping part; the microcontroller controls the first relay and the second relay to be closed, the third relay and the fourth relay and the fifth relay to be disconnected, and the first battery pack clamping part and the second battery pack clamping part are connected with the third battery pack clamping part in series; the microcontroller controls the first relay and the second relay to be disconnected, the third relay, the fourth relay and the fifth relay to be closed, and the first battery pack clamping part, the second battery pack clamping part and the third battery pack clamping part are connected in parallel.

Preferably, the number of the battery pack clamping parts is three, and the battery pack clamping parts are a battery pack clamping part I, a battery pack clamping part II and a battery pack clamping part III respectively; the negative electrode of the first battery pack clamping part is electrically connected with the first internal port, and the positive electrode of the first battery pack clamping part is electrically connected with the second internal port; the negative electrode of the battery pack clamping part II is electrically connected with the internal port III, and the positive electrode of the battery pack clamping part II is electrically connected with the internal port IV; the negative electrode of the battery pack clamping part III is electrically connected with the internal port V, and the positive electrode of the battery pack clamping part III is electrically connected with the internal port VI; the first internal port is electrically connected to the negative electrode lead-out wire, and the sixth internal port is electrically connected to the positive electrode lead-out wire; the switching control piece shifts the shifting lever to be in a first position, the first internal port, the third internal port and the fifth internal port are connected, the second internal port and the fourth internal port are connected with the sixth internal port, and the first battery pack clamping part, the second battery pack clamping part and the third battery pack clamping part are connected in parallel; the conversion control piece shifts the shifting rod to be in a second position, the second internal port is connected with the third internal port, the fourth internal port is connected with the fifth internal port, and the first battery pack clamping part, the second battery pack clamping part and the third battery pack clamping part are connected in series.

The invention has the beneficial effects that: the battery pack support structure is simple and reasonable in structural design, the battery pack is installed in the battery pack clamping part of the support body, the battery pack clamping part is electrically connected to the control device, the output of the electric energy of the battery pack is achieved through the positive electrode outgoing line and the negative electrode outgoing line on the battery pack clamp, the simple connecting conducting wire is replaced through the support body and the control device, the output voltage of the battery pack support structure is rapidly switched through the conversion control piece, the output voltage of the output part is convenient to adjust, the phenomena of wire breakage and short circuit are reduced, the quality is improved, the operation is convenient and rapid, the efficiency of an operator is improved, the use safety of the battery pack is guaranteed, and the use of the operator is convenient.

Drawings

The above objects, technical solutions and advantages of the present invention will be described in detail with reference to the following detailed description of specific embodiments in which the present invention can be implemented.

The same reference numbers and symbols in the drawings and description are used to indicate the same or equivalent elements.

Fig. 1-i are schematic views of a battery pack storage apparatus and a battery pack stored therein according to an embodiment of the present invention.

Fig. 2-i is a schematic view of the battery pack storage apparatus shown in fig. 1-i and a battery pack assembled together.

Fig. 3-i is a schematic view of the power output interface of the battery pack storage apparatus shown in fig. 2-i connected to a power tool.

Fig. 4-i is a schematic view showing an unfolded state of a foldable battery pack according to an embodiment of the present invention.

Fig. 5-i is a schematic view illustrating a folded state of the foldable battery pack shown in fig. 4-i.

Fig. 6-i is a schematic view of the foldable battery pack shown in fig. 5-i mounted to a power tool.

Fig. 7-i is a schematic view of a flexible battery pack according to an embodiment of the present invention in an unfolded state.

Fig. 8-i is a schematic view of the rolled state of the flexible battery pack shown in fig. 7-i.

Fig. 9-i is a schematic view of the flexible battery pack of fig. 8-i mounted to a power tool.

Fig. 10-i is a schematic view of a battery pack storage apparatus according to an embodiment of the present invention.

Fig. 11-i is a schematic view of a battery pack storage apparatus according to an embodiment of the present invention.

Fig. 1-ii are block diagrams of an electrical energy operating system in accordance with an embodiment of the present invention.

Fig. 2-ii are block diagrams of the energy storage components of fig. 1-ii.

Fig. 3-ii is a block diagram of the secondary energy storage module of fig. 2-ii.

Fig. 4-ii is a schematic diagram of an energy storage component comprised of the secondary energy storage module of fig. 3-ii.

Fig. 5-ii is a block diagram of the secondary energy storage module of fig. 2-ii.

Fig. 6-ii is a schematic diagram of an energy storage component comprising the secondary energy storage module of fig. 5-ii.

Fig. 7-ii is a schematic diagram of an energy storage component comprised of the secondary energy storage module of fig. 3-ii and the secondary energy storage module of fig. 5-ii.

Fig. 8-ii is a block diagram of the secondary energy storage module of fig. 2-ii.

Fig. 9-ii is a schematic diagram of the mating of the energy storage component and the power transfer device of fig. 4-ii.

Fig. 10-1-ii are schematic views of the present embodiment.

Fig. 10-2-ii is a schematic diagram of a second series-parallel circuit of the present embodiment.

Fig. 10-3-ii is a schematic diagram of a third series-parallel circuit of the present embodiment.

Fig. 10-4-ii are schematic diagrams of a fourth series-parallel circuit of the present embodiment.

Fig. 11-ii are schematic views of the output member of the present embodiment.

Fig. 12-ii is a schematic diagram of a first state of the output selection module in this embodiment.

Fig. 13-ii is a second state diagram of the output selection module of fig. 12-ii.

Fig. 14-ii is a flow chart of the operation of the first port of fig. 11-ii accessing an ac device.

Fig. 15-ii is a flow chart of the operation of the second port of fig. 11-ii accessing an ac unit.

Fig. 16-ii is a schematic view of an input member according to another embodiment of the present invention.

Fig. 17-ii is a schematic view of the dc device connection terminal of fig. 16-ii.

Fig. 18-ii is a schematic illustration of an adapter input mated to the dc device connection terminal of fig. 17-ii.

Fig. 19-ii is a schematic diagram of a dc output interface and a dc device connection according to an embodiment of the invention.

Fig. 20-ii is a schematic diagram of the ac output interface and the ac device connection according to an embodiment of the present invention.

Fig. 21-ii are flowcharts illustrating the operation of the ac device connecting terminal in fig. 16-ii when the ac device is connected to the ac device.

Fig. 22-ii is a schematic diagram of an electrical energy transmission device according to an embodiment of the invention.

Fig. 23-ii is a block diagram of the controller of fig. 22-ii.

Fig. 24-ii is a schematic diagram of an operating system according to an embodiment of the present invention.

FIG. 25-II is a schematic view of an operation panel according to an embodiment of the present invention.

Fig. 26-ii is a schematic diagram of a series-parallel conversion circuit in the embodiment of fig. 25-ii.

Fig. 27-ii is a schematic diagram of another state of the series-parallel conversion circuit of fig. 26-ii.

Fig. 28-ii is a schematic diagram of another state of the series-parallel conversion circuit of fig. 26-ii.

Fig. 29-ii is a schematic diagram of another state of the series-parallel conversion circuit of fig. 26-ii.

Fig. 30-ii is a circuit connection diagram of an energy storage system and a consumer according to another embodiment of the invention.

Fig. 31-ii is a schematic diagram of the power input terminal of the 20V adapter of the embodiment shown in fig. 30-ii.

Fig. 32-ii is a schematic diagram of the power input terminals of the 40V adapter of the embodiment shown in fig. 30-ii.

Fig. 33-ii is a schematic diagram of the power input terminals of the 60V adapter of the embodiment shown in fig. 30-ii.

Fig. 34-ii is a schematic diagram of the power input terminal of the 120V adapter of the embodiment shown in fig. 30-ii.

Fig. 35-ii is a circuit connection diagram of an energy storage system and a consumer according to another embodiment of the invention.

Fig. 36-ii is a circuit connection diagram of an energy storage system and a power consumption device according to another embodiment of the invention.

Fig. 37-ii is a diagram of dc output waveforms according to another embodiment of the present invention.

Fig. 1-iii are overall block diagrams of a power supply system according to an embodiment of the present invention.

Fig. 2-iii are block diagrams of the energy storage components of fig. 1-iii.

Fig. 3-iii are diagrams of the battery pack of fig. 1-iii.

Fig. 4-iii are block diagrams of the power supply platform of fig. 1-iii.

Fig. 5-iii are circuit diagrams of the power supply platform of fig. 4-iii.

Fig. 6-iii are schematic diagrams of dc output interfaces of the power supply platforms of fig. 4-iii.

Fig. 7-iii are schematic views of the adapter of fig. 1-iii.

Fig. 8-iii is a schematic diagram of an input interface of the adapter of fig. 7-iii.

Fig. 9-iii are schematic views of the power platform of fig. 1-iii coupled with a first adapter.

Fig. 10-iii is a schematic view of the power platform of fig. 1-iii mated with a second adapter.

Fig. 11-iii are schematic views of the power platform of fig. 1-iii coupled to a third adapter.

Fig. 12-iii are schematic diagrams of the power platform of fig. 1-iii coupled with a fourth adapter.

Fig. 13-iii are schematic diagrams of the power supply platform and the ac driving circuit thereof in fig. 1-iii.

FIGS. 14-III are schematic diagrams of the power platform of FIGS. 1-III with a charger coupled thereto

Fig. 15-iii is a schematic block diagram of another embodiment of the present invention.

Fig. 16-iii are circuit diagrams of the power platform of fig. 15-iii mated with a first adapter.

Fig. 17-iii are circuit diagrams of the power platform of fig. 15-iii mated with a second adapter.

Fig. 18-iii is a circuit diagram of the power platform of fig. 15-iii mated with a third adapter.

Fig. 19-iii is a circuit diagram of the power supply platform docking charger of fig. 15-iii.

Fig. 20-iii is a circuit diagram of the power supply platform of fig. 15-iii including an ac driving circuit.

Fig. 1-iv are overall block diagrams of a power supply system of an embodiment of the present invention.

Fig. 1-v are left side views of a battery pack case containing 6 battery cells in a preferred embodiment of the present invention.

Fig. 2-v are internal wiring diagrams of the battery pack case shown in fig. 1-v, in which one set of electrode terminals is drawn out of each battery cell.

Fig. 3-v is a front view of the battery housing shown in fig. 1-v.

Fig. 4-v are schematic diagrams of voltage conversion devices in preferred embodiments of the invention.

Fig. 5-v is a schematic view of the assembly of the battery pack case shown in fig. 2-v and the voltage converting device shown in fig. 4-v.

Fig. 6-v is a schematic diagram of a first embodiment of the interconnections of the voltage conversion device shown in fig. 4-v.

Fig. 7-v is a schematic diagram of a second embodiment of the interconnections of the voltage conversion device shown in fig. 4-v.

Fig. 8-v is a schematic diagram of a third embodiment of the interconnections of the voltage conversion device shown in fig. 4-v.

Fig. 9-v is a schematic diagram of a fourth embodiment of the interconnections of the voltage conversion device shown in fig. 4-v.

Fig. 10-v is a schematic view of the assembly of the battery pack and the power tool in the preferred embodiment of the invention.

Fig. 1-vi are schematic structural views of the battery pack support structure of the present invention.

Fig. 2-vi are schematic circuit connection diagrams of an embodiment of the battery pack support structure shown in fig. 1-vi.

Fig. 3-vi are schematic circuit connection diagrams of another embodiment of the battery pack support structure shown in fig. 1-vi.

Fig. 4-vi are schematic connection diagrams of yet another embodiment of the battery pack support structure shown in fig. 1-vi.

Fig. 1 to vii are schematic structural diagrams of a first embodiment of a power supply system according to the present invention.

Fig. 2-vii are schematic structural diagrams of a second embodiment of the power supply system according to the present invention.

FIG. 3-VII are side views of a mobile assembly in accordance with a second embodiment of the present invention

Fig. 4-vii are schematic structural views of a third embodiment of a power supply system of the present invention.

Fig. 5-vii are schematic views of a moving assembly of a third embodiment of a power supply system of the present invention.

Fig. 6-vii are side views of a fourth embodiment of a power supply system of the present invention.

Detailed Description

The present invention comprises three inventive concepts, wherein a first inventive concept will be described with reference to FIGS. 1-I through 11-I; the second inventive concept will be described with reference to fig. 1-ii to 37-ii; the third inventive concept will be described with reference to fig. 1-iii to 20-iii. The three inventive concepts are mutually supported and jointly form the inventive essence of the invention.

First, a description will be given of an embodiment under the guidance of the first inventive concept with reference to fig. 1-i to 11-i.

As shown in fig. 1-i, the present embodiment provides a wearable battery pack storage apparatus 100-i and a wearable battery pack storage system.

The wearable battery pack storage apparatus 100-i is used to output electric power to the electric power tool 50-i. The battery pack storage apparatus 100-I includes a main body 1-I, a wearing part 3-I attached to the main body 1-I, and an electric power output device 9-I for outputting electric power to an external electric power tool 50-I. Preferably, the power takeoff 9-I is a flexible device, typically a cable.

The wearable battery pack system includes the battery pack storage device 100-i, and a battery pack 30-i stored in the battery pack storage device 100-i.

The main body 1-I is provided with at least one battery pack accommodating position 5-I for accommodating a battery pack 30-I. The battery pack receiving position 5-I is provided with a receiving interface (not shown) matched with the battery pack interface 31-I of the battery pack 30-I. As shown in fig. 1-i and 2-i, the battery pack 30-i and the battery pack receiving portion 5-i are electrically and shape-coupled in a separable manner through the battery pack interface 31-i and the receiving interface. The battery pack 30-i accommodated in the battery pack accommodating portion 5-i is also adapted to be directly mounted on the electric power tool 50-i.

The wearing part 3-i includes shoulder straps and/or waist straps. In this embodiment, the battery pack storage apparatus 100-i is a backpack, and the wearing member 3-i is adapted to a shoulder strap worn by a user. In other embodiments, the wearing member may further include a waist belt for assisting in carrying. If the battery pack storage apparatus 100-i is embodied as a waist pack, the wearing part 3-i correspondingly includes a waist belt. If the battery pack storage apparatus 100-i is embodied as a satchel, the wearing part 3-i includes a shoulder strap adapted to fit the satchel of the user.

The power output device 9-i is connected to the main body 1-i and electrically connected to the receiving interface to output the power of the battery pack 30-i received in the battery pack receiving apparatus 100-i to the electric power tool 50-i. Referring to fig. 3-i, the power output device 9-i has a power output interface 91-i. Preferably, the power output interface 91-I is mated with the battery pack mounting interface 51-I of the external power tool 50-I to enable the power output 9-I to be mounted to the power tool 50-I and output power to the power tool 50-I as with the conventional battery pack 30-I. That is, the electric power tool 50-i can receive the electric power supplied from the battery pack accommodating apparatus 100-i directly through the battery pack mounting interface 51-i without additionally providing another set of electric power input interface. In this embodiment, the rated output voltage of the power output interface 91-I is greater than 80V, for example, 80V, 100V, 108V, 112V or 120V.

As described above, the battery pack receiving apparatus 100-i receives one or more battery packs 30-i through the battery pack receiving positions 5-i and then transfers power from the battery packs 30-i to the power tool 50-i by connecting the power output 9-i to the battery pack mounting interface 51-i of the power tool 50-i. The battery pack receiving apparatus 100-i is similar to a docking station and allows for expansion of battery capacity and/or transfer of user load bearing positions without changing the interface between the battery pack 30-i and the power tool 50-i.

In various embodiments, the number of battery pack receiving bits 5-i and the circuit connection relationships have a variety of alternative configurations. However, in each embodiment, the battery pack storage apparatus 100-i is configured accordingly. For example, the circuit connection relation of the accommodating positions 5-I of the battery packs is reasonable, or a transformer is arranged, or the transformer and a power supply regulator are arranged to control the rated output voltage of the electric energy output device 9-I.

For example, with continued reference to fig. 1-i through 3-i, in this embodiment, the battery pack receiving device 100-i has a plurality of battery pack receiving positions 5-i. In the embodiment, the rated output voltage of the electric energy output interface is larger than 80V by configuring the series-parallel connection relation between the battery pack accommodating positions 5-I. Wherein, in some embodiments, the rated voltage of the battery pack 30-I is more than 80v, in other embodiments, the number of the battery packs is multiple, and the sum of the rated voltages of the battery packs is more than 80v.

Note that the rated output voltage here is a voltage which is output from the battery pack storage device to the outside after a battery pack satisfying a certain condition is mounted in the battery pack storage device. The certain condition here may be that each battery pack storage 5-bit contains a battery pack 30-i, or that some specific battery pack storage bits 5-i contain a battery pack 30-i.

For example, each of the battery pack receiving positions 5-I may have the same dimensions and be adapted to receive the same battery pack 30-I. If the rated output voltage of the electric energy output interface 91-I is 108V, the battery pack accommodating positions 5-I can be 2 or more 108V battery pack accommodating positions 5-I which are mutually connected in parallel; or 2 mutually-connected 54V battery pack accommodating positions 5-I or a plurality of groups of mutually-connected battery pack accommodating positions 5-I, wherein each group of battery pack accommodating positions 5-I comprises 2 mutually-connected 54V battery pack accommodating positions 5-I. Other similar combinations are numerous and not listed.

As described above, in the present embodiment, the receiving interfaces of at least two battery pack receiving locations 5-i are matched to the battery pack interface 31-i of the battery pack 30-i rated at a voltage of less than 60V, for example, the battery pack receiving apparatus 100-i has two battery pack receiving locations 5-i each matched to the battery pack interface 31-i of the battery pack 30-i rated at a voltage of 54V. For another example, the battery pack receiving apparatus 100-I has 4 battery pack receiving positions 5-I, which are each matched to a battery pack interface 31-I of a battery pack 30-I having a rated voltage of 27V.

In this embodiment, the housing interfaces are identical to each other, and the housing interfaces and the battery pack mounting interface 51-I of the mating external power tool 50-I are also identical. That is, the same battery pack 30-i may be mounted in the electric power tool 50-i or in the battery pack storage device 100-i. However, since the rated output voltage of a single battery pack is different from the rated output voltage of the battery pack storage apparatus, the external electric tool 50-i should have a voltage adaptive capability, and the same battery pack mounting interface can receive both a low voltage input and a high voltage input. Of course, in alternative embodiments, the battery pack mounting interface 51-I of the receiving interface and the mating external power tool 50-I may be different.

In another embodiment, each battery pack receiving position 5-I has multiple specifications, that is, can receive battery packs 30-I with multiple specifications, and the rated output voltage of the electric energy output interface 91-I is constant by configuring a proper series-parallel circuit relation among the battery pack receiving positions 5-I. For example, the rated voltage of the power output interface 91-I is 108V, and the battery pack receiving positions 5-I may include 1 54V battery pack receiving position 5-I and 2 27V battery pack receiving positions 5-I, wherein the battery pack receiving positions 5-I are connected in series. The battery pack accommodating positions 5-I can also comprise a plurality of groups of battery pack accommodating positions 5-I which are mutually connected in parallel, the output voltage of each group of battery pack accommodating positions 5-I is 108V, and the battery pack accommodating positions 5-I in each group are connected in series. For example, one set of battery pack receiving locations 5-I includes 3 series-connected 36V battery pack receiving locations, another set of battery pack receiving locations 5-I includes 2 series-connected 54V battery pack receiving locations 5-I, and yet another set of battery pack receiving locations 5-I includes one 54V battery pack receiving location 5-I, two 27V battery pack receiving locations 5-I, and so on. Other similar combinations are numerous and are not listed.

In this embodiment, the battery pack receiving space 5-i has a plurality of receiving interfaces, i.e. the battery pack receiving apparatus 100-i can receive a plurality of battery packs 30-i. And, at least one of the receiving interfaces is identical to a battery pack mounting interface 51-I of the external electric tool 50-I, and the power output interface 91-I is matched to the battery pack mounting interface 51-I of the electric tool 50-I. However, the other receiving interfaces of the battery pack receiving apparatus 100-I and the battery pack mounting interface of the power tool 50-I may or may not be identical and may or may not be compatible with the power output interface 91-I. Of course, in other alternative embodiments of this embodiment, the power output port 91-I may not be identical to the battery pack mounting port 51-I of the external power tool 50-I, but only be compatible with the battery pack mounting port 51-I of the power tool 50-I.

In another embodiment of the present invention, the battery pack receiving apparatus further comprises a transformer between the power output port 91-I and the receiving port. The transformer converts the input voltage at one end of the accommodating interface into the rated output voltage at one end of the electric energy output interface. Therefore, the battery pack accommodating device can have a more flexible battery pack accommodating position configuration mode, and a certain rated output voltage is provided without configuring the series-parallel connection relation among the accommodating interfaces. In this embodiment, when the battery packs received in the battery pack receiving apparatus satisfy the minimum number and/or voltage requirements, the transformer controls the battery pack receiving apparatus to output a predetermined rated output voltage, such as 80v,100v,108v, 120v.

As described above, in some embodiments of the present invention, the rated output voltage of the power output interface 91-I is 80V or more. The higher rated output voltage particularly enables full use of the advantages of the wearable battery pack receptacle apparatus 100-i, since high voltage typically means greater output power and battery capacity, i.e., heavier, which may significantly enhance the user experience when carried. In conjunction therewith, power tools requiring high output and/or high battery capacity are particularly suited for use with the battery pack storage apparatus 100-I of the present invention, such as chain saws, lawn mowers, pruning shears, and the like.

In another embodiment of the present invention, the nominal output voltage of the power output interface 91-I is adjustable. Therefore, the battery pack accommodating device can provide energy for various electric tools with different input voltages, and the application range of the product is widened.

Specifically, the battery pack accommodating device 100-i further includes a transformer and a voltage regulator connected to the transformer, the transformer is located between the electric energy output interface and the accommodating interface, and converts an input voltage at one end of the accommodating interface into a rated output voltage at one end of the electric energy output interface; and the voltage regulator is controlled to regulate the value of the rated output voltage.

In order to adapt to a larger number of types of power tools, the value of the rated output voltage is adjusted in the range of 20V to 120V in the present embodiment.

The voltage regulator can be an operation interface for a user to directly command the rated output voltage, and can also be a monitoring device for adaptively regulating the rated output voltage according to the working condition.

For example, the operation interface may be a voltage adjustment knob. The voltage adjusting knob is located on the main body 1-I or the power output device and has a plurality of shift positions, such as 20V, 28V, 40V, 56V, 80V, 100V, 108V, 112V, 120V and the like. Of course, the voltage adjustment knob may be stepless. In other embodiments, the operation interface may also be in other suitable forms, such as a push button, a touch panel, and the like, which are not described herein in detail.

The monitoring device monitors a signal or a parameter at the power output interface 91-i and adjusts the value of the rated output voltage in accordance with the signal or the parameter.

In one embodiment, the power output ports 91-I are of a variety of types, each adapted to be mounted to a variety of different power tools having different input voltages, such as a power output port adapted to be mounted to a small electric drill, a power output port adapted to be mounted to a large lawn mower, and the like. Each type of power output interface 91-I is interchangeably mountable on the wearable battery pack receiving device 100-I, in one embodiment the power output interface 91-I itself is separately replaceable as a component, and in another embodiment the power output interface 91-I and the power takeoff are replaceable as a unit. The monitoring device monitors a signal or parameter representing the type of the power output interface 91-i, and adjusts the value of the rated output voltage in accordance with said type. For example, when the type of the power output interface 91-i is a power output interface adapted to a 20V electric drill, the monitoring device causes the transformer to adjust the rated output voltage of the battery pack accommodating device 100-i to 20V according to the type; when the type of the power output interface 91-I is adapted to the power output interface of the 56V mower, the monitoring device enables the transformer to adjust the rated output voltage of the battery pack accommodating device 100-I to 56V according to the type. In one embodiment, the power output interface 91-I may send an identification signal to the battery pack receptacle 100-I indicating the type of power output interface 91-I. In another embodiment, the power output interface 91-i is embedded with electronic components such as an identification resistor, and the monitoring device correspondingly selects a proper rated output voltage according to the type of the output interface of the parameter driving circuit of the identification resistor.

In one embodiment, power output interface 91-I is standard, but can be implemented on a variety of power tools 50-I on the same interface platform. The power tools of the platform have different input voltages. The monitoring device monitors a signal or a parameter which is representative of the type of the power tool, and the value of the rated output voltage is adjusted in accordance with said type. For example, when the monitoring device recognizes that the electric tool is a 20V drill, the transformer is made to adjust the rated output voltage of the battery pack accommodating device 100-i to 20V according to the type; when recognizing that the electric power tool is a 56V lawnmower, the monitoring device causes the transformer to adjust the rated output voltage of the battery pack storage device 100-i to 56V according to the type. In one embodiment, the power tool 50-i may send an identification signal to the battery pack storage device 100-i, the identification signal indicating the type of the power tool 50-i. In another embodiment, the power tool 50-i has an electronic component such as an identification resistor incorporated therein, and the monitoring device selects an appropriate rated output voltage according to the type of the output interface of the parameter driving circuit of the identification resistor.

In another embodiment of the present invention, the battery pack accommodating apparatus further comprises a charger for charging the accommodated battery pack, the charger having a charging interface connectable with an external power supply. Thus, the battery pack storage apparatus 100-i can be connected to an external power source such as commercial power to charge the battery pack therein.

In another embodiment of the present invention, a portion of the main body and/or the wearing part of the battery pack accommodating apparatus, etc., which may come into contact with the human body, includes an insulating protective layer. In some embodiments of the invention, the rated output voltage of the whole battery pack accommodating device is already greater than 80V, the voltage of a single pack can reach 50V or even higher, and the insulating layer is provided to avoid serious accidental injury.

In some embodiments of the invention, the rated output voltage of an individual battery pack 30-I is already large, for example, above 50V or even above 100V. Such a battery pack 30-I is generally relatively thick and heavy, often greater than 10CM thick; the weight is also considerable, and the total weight can reach more than 10 kilograms after a plurality of battery packs are combined. It is conceivable that, after a plurality of battery packs 30-i are loaded into the battery pack storage apparatus 100-i, the entire battery pack storage apparatus 100-i is heavy, and the overall center of gravity is back due to the large thickness of the battery packs, so that when a user carries the battery pack on his back, the user can easily lean his body backward, the experience is not good, and a certain risk of falling down is involved. To address this problem, in some embodiments of the invention, individual battery packs 30-i are thin and generally oblong, e.g., bar or L-shaped, as shown in fig. 1-i. The thinnest portion of the battery pack 30-I that houses the batteries is less than 5CM thick, and no more than two layers of batteries are housed in the thickness direction of the battery pack 30-I. Thus, after the battery pack storage device 100-I is loaded into the battery pack 30-I, the overall center of gravity is closer to the user, which makes the user less prone to leaning backwards and less secure.

However, since the volume of the battery pack of a certain capacity has a lower limit, the battery pack 30-i is relatively thin and has a correspondingly increased length and width, which makes it difficult to mount the battery pack 30-i to the power tool 50-i. To this end, as shown in fig. 4-i to 6-i, in one embodiment of the present invention, a battery pack 30-i is foldable, and includes at least a first body 33-i and a second body 35-i, the first body 33-i and the second body 35-i each accommodating a plurality of batteries therein, the batteries in the first body 33-i and the batteries in the second body 35-i being electrically connected to each other. Also, the first body 33-I and the second body 35-I are relatively displaceably connected, and the battery pack interface 31-I is disposed on the first body 33-I. In this embodiment, the first body 33-I and the second body 35-I are connected in a foldable manner, having an unfolded state as shown in FIG. 4-I and a folded state as shown in FIG. 5-I. In the unfolded state, the battery pack 30-I has a large overall length and a small thickness, and is suitable for being mounted in the battery pack storage apparatus 100-I; in the stacked state, the battery pack 30-I has a small overall length and a large thickness, and is suitable for mounting on the power tool 50-I. In other alternative embodiments, the first body 33-I and the second body 35-I may also be configured to be slidably coupled to each other.

Also in order to make the center of gravity of the battery pack storage apparatus 100-i in the form of a backpack as close as possible to the back of the user, in the present embodiment, the main body 1-i has a bottom portion to be placed against the back of the user, and the main body 1-i is provided with a plurality of battery pack receiving places 5-i, and the respective battery pack receiving places 5-i are laid flat on the bottom portion without being overlapped with each other to be thickened.

In another embodiment of the present invention, the housing of the battery pack 30-I is made of a flexible material, and the shape thereof may be changed within a certain range. For example, the battery pack 30-I may have an unfolded state as shown in FIG. 7-I and a rolled state as shown in FIG. 8-I. In the unfolded state, the battery pack 30-I is thin and configured to fit in the battery pack storage device 100-I, achieving the effect of forward center of gravity; in the rolled up condition, as shown in fig. 9-i, the battery pack 30-i may be fitted over a pole or other elongated portion of the power tool 50-i that is suitable for roll-over mounting.

The battery pack storage apparatus 100-i described above has a large rated output voltage as a whole, and thus a problem of heat generation that may occur during operation is serious. Accordingly, in one embodiment of the present invention, as shown in fig. 10-i, the battery pack receiving apparatus 100-i is provided with the vent hole 15-i to facilitate the timely removal of heat emitted from the battery pack 30-i. Specifically, the vent hole 15-I is disposed at the side of the battery pack accommodating apparatus 100-I.

Since the user is likely to wear the battery pack accommodating apparatus 100-i to work under outdoor severe conditions, the battery pack accommodating apparatus 100-i is also susceptible to rain or exposure to high humidity. Therefore, in one embodiment of the present invention, as shown in fig. 10-i, the main body 1-i of the battery pack accommodating apparatus 100-i includes a bag body 13-i and a cover 11-i, the battery pack accommodating portion 5-i is provided in the bag body 13-i, and the cover 11-i openably closes the bag body 13-i, and the cover 11-i includes a waterproof layer. Preferably, as shown in fig. 10-i, the side edge of the cover 11-i covers but does not close the ventilation hole 15-i, giving consideration to water resistance and heat dissipation.

The battery pack accommodating apparatus 100-i may also suffer severe shock during operation and transportation, and the severe shock may cause fire, explosion and other risks of the battery pack. Therefore, as shown in fig. 11-i, in one embodiment of the present invention, a shock-absorbing structure, such as an airbag 17-i, or soft gel, is provided between the respective battery pack receiving locations 5. In this embodiment, the battery pack 30-i that fits into each battery pack receiving location is preferably a lower voltage battery pack, such as a battery pack of less than 60V, or even less than 40 or 30V. Because the risk or harm of lower voltage fire explosion is lower, the standard of shock-absorbing structure also can be lower, is favorable to reducing the cost of production and transportation.

Next, a description will be given of a specific embodiment under the guidance of the second inventive concept with reference to FIGS. 1-II to 37-II.

Referring to fig. 1-ii, the working system of the embodiment is composed of an electric energy transmission device 1-ii, an energy storage component 3-ii and an electric device 5-ii. The electric energy transmission device 1-II and the energy storage component 3-II form an electric energy supply device. The electric energy transmission device 1-II is electrically connected between the energy storage component 3-II and the electric equipment 5-II, and transmits the electric energy stored by the energy storage component 3-II to the electric equipment for the electric equipment to work. The energy storage component 3-II is a direct current power supply and specifically comprises one or more battery packs. The consumer 5-II is a DC device 21-II and/or an AC device 23-II, such as a DC appliance, a DC power tool, an AC appliance, an AC power tool, etc.

The power transmission device 1-II comprises an input part 11-II, a switching part 15-II and an output part 13-II. The input component 11-II is connected with the energy storage component 3-II to receive electric energy input, the output component 13-II is connected with the electric equipment to output electric energy to the electric equipment, and the switching component 15-II is connected between the input component 11-II and the output component 13-II to convert the electric energy received by the input component 11-II into electric energy suitable for the electric equipment to use and transmit the electric energy to the output component 13-II.

With continued reference to fig. 1-ii, the output component 13-ii includes a dc device interface 17-ii and an ac device interface 19-ii. The dc output interface 17 is connected to the dc devices 21-ii and outputs electrical energy thereto. The AC output interface 19 is connected to the AC device 23-II to output power thereto.

Referring to fig. 2-ii, the energy storage component comprises a primary energy storage module 71-ii, the primary energy storage module 71-ii comprises a plurality of secondary energy storage modules 73-ii, and the secondary energy storage module 73-ii comprises a plurality of tertiary energy storage modules 75-ii.

The primary energy storage module 71-II is a battery pack 27-II, and the battery pack 27-II can work independently and supply power to the matched electric equipment 5-II. The battery pack 27-ii has a separate housing, control circuitry and power output terminals located on the housing of the battery pack 27-ii. The power output terminals of the battery packs 27-II comprise a positive electrode, a negative electrode and a plurality of signal electrodes in some embodiments. The specifications of all the secondary energy storage modules 73-II are uniform, and the rated voltages are consistent. The secondary energy storage module 73 is provided with an independent electric energy output terminal, but is fixedly arranged in the battery pack shell body and cannot be separated from the battery pack 27-II for independent use, and the electric energy output terminal of the secondary energy storage module 73-II is also positioned on the shell body of the battery pack 27-II. The power output terminals of the secondary energy storage modules 73-ii include positive and negative electrodes, and in some embodiments, include a plurality of signal electrodes. In one embodiment, the secondary energy storage module 73-II also has an independent control circuit. The tertiary energy storage module 75-ii is the cell itself and does not have an independent housing and control circuit.

In the present embodiment the energy storage component 3-ii comprises a plurality of primary energy storage modules 71-ii, but in an alternative the energy storage component 3-ii comprises only one primary energy storage module 71-ii.

In this embodiment, the at least one primary energy storage module 71-II includes a plurality of secondary energy storage modules 73-II. In an alternative, however, each primary energy storage module 71-ii comprises only one secondary energy storage module 73-ii.

In this embodiment, the secondary energy storage module 73-II includes a plurality of tertiary energy storage modules 75-II.

Several specific energy storage component configurations are exemplified below. In one embodiment, the at least one primary energy storage module 71-II includes a plurality of secondary energy storage modules 73-II. For example, as shown in FIGS. 3-II and 4-II, the secondary energy storage module 73-II is rated at 20V and is formed by connecting 5 tertiary energy storage modules 75-II rated at 4V in series. The energy storage component 3-II comprises 6 secondary energy storage modules 73-II in total, and every three secondary energy storage modules 73-II form a battery pack 27-II, namely the energy storage component 3-II comprises two battery packs 27-II with the rated voltage of 60V. In this embodiment, the rated voltages of the secondary energy storage modules 73-ii are a divisor of the ac standard voltage of 120V in the united states, so that the sum of the rated voltages of a plurality of secondary energy storage modules 73-ii can be exactly equal to the ac standard voltage of the united states, for example, the sum of the rated voltages of 6 secondary energy storage modules 73-ii in this embodiment is 120V. Under this concept, the rated voltage of the secondary energy storage module 73-II may also be 10V,40V or 60V. Similarly, the rated voltage of the secondary energy storage module 73-ii may also be a divisor of ac standard voltages in other regions, such as a divisor of ac standard voltage 220V in china, a divisor of ac standard voltage 230V in uk, a divisor of ac standard voltage 110V in some other regions, and so on, which are not described herein again.

In another embodiment, at least one primary energy storage module 71-II includes only one secondary energy storage module 73-II. Like the energy storage component 3-ii, it also comprises 6 secondary energy storage modules 73-ii rated at 20V, like fig. 5-ii and fig. 6-ii, with the difference that each secondary energy storage module 73-ii forms a battery pack 27-ii, i.e. the energy storage component comprises 6 battery packs rated at 20V. In another embodiment, the number of secondary energy storage modules 73-ii in at least two primary energy storage modules 71-ii is different, for example, the energy storage component 3-ii also comprises 6 secondary energy storage modules 73-ii rated at 20V. Fig. 7-ii differs in that three secondary energy storage modules 73-ii jointly form a battery pack 27-ii, and the other three secondary energy storage modules 73-ii individually form a battery pack 27-ii, i.e., the energy storage component 3-ii includes a battery pack 27-ii rated at 60V and also includes three battery packs 27-ii rated at 20V. In another embodiment, as shown in fig. 8-ii, the energy storage component 3-ii also comprises 6 secondary energy storage modules 73-ii rated at 20V, with the difference that each two secondary energy storage modules 73-ii together form a battery pack 27-ii, i.e. the energy storage component 3-ii comprises three battery packs 27-ii rated at 40V.

The above configuration schemes are only examples, and those skilled in the art will understand that the configuration schemes do not constitute a limitation to the present invention, and other configuration schemes are also possible, for example, the sum of the rated voltages of the plurality of secondary energy storage modules 73-ii in the foregoing scheme is 120V, but other alternatives may be 160v,200v,240v, etc., which are not described herein again.

By providing the standard secondary energy storage modules 73-II and configuring the series-parallel connection relationship of the secondary energy storage modules 73-II in the electric energy transmission device 1-II to realize multi-voltage output, a DC-DC voltage converter is not required to be arranged in the embodiment, so that the cost is reduced, and the energy utilization efficiency is improved.

The manner in which the energy storage component and the input component are mated is described below.

As shown in fig. 9-ii, the input unit 11-ii includes a battery pack interface 28-ii to which the aforementioned battery pack 27-ii is coupled. The number of battery pack interfaces 28-ii and the configuration and port arrangement of the individual battery pack interfaces 28-ii are matched to the number of battery packs 27-ii and the configuration and port arrangement of the individual battery packs 27-ii of the energy storage module 3. In this embodiment, there are two battery pack interfaces 28-II for receiving two 60V battery packs 27-II.

As mentioned above, the battery pack 27-ii has the power output terminals of the battery pack itself and the power output terminals of the secondary energy storage modules 73-ii, but the battery pack interface 28-ii has only the input terminals coupled to the power output terminals of the secondary energy storage modules 73-ii and does not have the input terminals coupled to the power output terminals of the battery pack 27-ii. That is, from a circuit perspective, the input component directly interfaces each secondary energy storage module into the power transfer device, without the hierarchy of battery packs. In other alternative embodiments, the battery pack interface further includes an input terminal that mates with a power output terminal of the battery pack itself.

The battery pack interface 28-ii of the input component 11-ii is designed to be able to access all of the battery packs 27-ii of the energy storage components 3-ii, but not necessarily all of the battery packs 27-ii are always accessible during use.

Taking the foregoing energy storage component 3-ii including two 60v battery packs 27-ii as an example, the battery pack interface 28-ii correspondingly includes two 60v battery pack interfaces, but according to actual use situations, one or two 60v battery packs 27-ii may be connected to the input component 11-ii.

Taking the foregoing energy storage component 3-ii including 6 20V battery packs 27-ii as an example, the battery pack interface 28-ii correspondingly includes 6 20V battery pack interfaces, but according to the actual use situation, the input component 11-ii may be connected with 1-6 battery packs 27-ii in different numbers.

Taking the foregoing energy storage component 3-ii including 1 60V battery pack and 3 20V battery packs as an example, the battery pack interface 28-ii correspondingly includes 1 60V battery pack interface and 3 20V battery pack interfaces, but according to the actual use situation, the input component 11-ii may be accessed with 1 60V battery pack 27-ii, may also be accessed with 3 20V battery packs 27-ii, and may also be accessed with other numbers and types of battery packs 27-ii.

Taking the aforementioned energy storage component 3-ii comprising 3 40V battery packs 27-ii as an example, the battery pack interface 28-ii correspondingly comprises 3 40V battery pack interfaces. However, according to the actual use situation, the input component can be connected with 1-3 different numbers of 40V battery packs 27-II.

The adapter part 15-ii is described below.

The switching member 15-ii is located between the input member 11-ii and the output member 13-ii of the power transmission device 1-ii, and converts the power received by the input member 11-ii into a suitable form to be supplied to the output member 13-ii. For example, the connected secondary energy storage modules 73-ii are configured in series and parallel, and different voltages are output to the output component 13-ii under different scenes. In this embodiment, the switching component 15-ii connects the 6 20V secondary energy storage modules 73-ii connected in series-parallel configuration, and

outputs

20V, 40v,60v,80v, 100V, 120V, and other voltages.

Taking fig. 10-1-ii as an example, the first series-parallel circuit 31-ii includes an input terminal 35-ii and an output terminal 36-ii, the input terminal includes 6 pairs, which are respectively connected to the positive and negative poles of the 6 20V secondary energy storage modules 73-ii, and the output terminal is a pair, which is connected to the output component to supply power thereto. The 6 pairs of input terminals are connected in parallel with each other to the output terminal, and the output terminal thus outputs 20V dc power to the output part.

Taking fig. 10-2-ii as an example, similarly, the positive and negative poles of the 6 20V secondary energy storage modules 73-ii are connected to the second series-parallel circuit 32-ii, wherein every two pairs of input terminals are connected in series to form a group, and the three groups of input terminals are connected in parallel to output terminals, which output terminals thus output 40V dc power to the output component.

Taking fig. 10-3-ii as an example, similarly, the positive and negative poles of the 6 20V secondary energy storage modules 73-ii are connected to the third series-parallel circuit 33-ii, wherein every three pairs of input terminals are connected in series to form a group, the two groups of input terminals are connected in parallel to each other and then connected to the output terminal, and the output terminal outputs 60V dc power to the output component.

Taking fig. 10-4-ii as an example, similarly, the positive and negative poles of the 6 20V secondary energy storage modules 73-ii are all connected into the fourth series-parallel circuit 34-ii, and the 6 pairs of input terminals are connected in series with each other and then connected to the output terminal, so that the output terminal outputs 120V dc power to the output component.

The switching component 3 further comprises a control module, and the control module selectively connects one of the series-parallel circuits to the output component according to the voltage required to be output by the output component, so as to output a suitable voltage to the outside. In an alternative embodiment, the switching component may directly select the series-parallel circuit by structural cooperation rather than electronic control, for example, four series-parallel circuits may be arranged in the switching component in a manner isolated from each other, and when a particular adapter or other terminal is inserted into the dc device connection terminal, a particular series-parallel circuit will be connected into the circuit.

In this embodiment, the adapting part 3 further comprises an inverter for converting the direct current provided by the battery pack into an alternating current to be provided to the output part.

The output section 13-ii of the present embodiment is described below.

As shown in fig. 11-ii, the output section 13-ii includes a dc device interface 41 and an ac device interface 51.

The dc device interface 41 is used to connect and supply power to a dc device; the ac device interface 51 is used to connect and supply power to an ac device. In this embodiment, the dc device interface includes 4 dc device connections 43-ii outputting dc power rated at 120V, 60V, 40V, and 20V, respectively. As previously described, the respective dc voltages are obtained from a plurality of standardized secondary energy storage modules 73-ii in a suitable series-parallel configuration and then output to the dc device connections 43-ii. When a specific direct current equipment connecting end 43-II is connected with the direct current equipment 21-II, the switching component 15-II controls the corresponding series-parallel circuit to be connected to each secondary energy storage module 73-II of the input component 11-II, and the series-parallel circuit forms required specific voltage to be supplied to the specific direct current equipment connecting end 43-II in the output component 13-II. For example, when the 60V DC device connection end 43-II is connected with the DC device 21-II, the switching component 15-II is triggered to connect the third series-parallel circuit 33 with the secondary energy storage module 73-II, and 60V voltage is obtained and output to the 60V DC device connection end 43-II. Thus, the electric energy supply device does not need a DC-DC transformation circuit to carry out voltage boosting or voltage reduction, thereby reducing the energy consumption loss in voltage conversion.

As shown in fig. 19-ii, the dc device connection terminal 43-ii is connected to the dc device 21-ii through the adapter 61-ii. Take the case where the dc device is the power tool 100-ii as an example. The dc link 43-ii can be connected to different power tools 100-ii via different adapters. For example, the 20V DC device connection is connected to the power tool 100-II via an adapter 61-II, the power tool 100-II being a drill. The adapter 61-ii has an input 63-ii and an output 65-ii, the input 63-ii matching the 20V dc device connection, and the power interface of the output matching the battery pack interface of the drill, i.e. the power interface is the same as the power interface of the original battery pack on the drill. Similar 40V,60V,120V DC device connections are each provided with a corresponding adapter 61-II for delivering power to the 40V,60V,120V power tool 100-II. The power tool 100-ii may be a chainsaw, a mower, or the like.

The ac device interface 51 includes an ac device connection terminal. The connecting end of the alternating current equipment is in a standard AC socket form, but can be a socket of European standard, american standard, national standard or other standards according to the difference of use areas. The alternating current equipment connecting end can output direct current electric energy. In this embodiment, the AC device connection includes a first port 53-II and a second port 55-II. The first port 53-ii outputs dc power to the ac device and the second port 55-ii outputs ac power to the ac device 23-ii.

In the present embodiment, the first port 53-ii is capable of outputting a rated voltage of 120V of dc power to the outside. As previously described, this nominal voltage is achieved by the series-parallel connection of a plurality of secondary energy storage modules 73-ii. Since the rated voltage of each secondary energy storage module 73-II is a submultiple of the AC standard voltage of 120V, a plurality of secondary energy storage modules 73-II are connected in series to obtain 120V. The rated voltage of the dc power thus corresponds substantially to the ac standard voltage of the particular region, and thus has the ability to drive ac equipment 23-ii in that region.

The second port 55-II can output the alternating current power with the rated voltage of 120V to the outside. The rated voltage is obtained by ac-dc conversion by the inverter 81-ii. Specifically, the transit portion 15 first obtains 120V direct current through the series-parallel circuit, and then converts the 120V direct current into 120V alternating current through the inverter 81-ii to output to the second port 55-ii. In order to control the size and power consumption of the inverter, the maximum power of the inverter in this embodiment is 300w, and the maximum power of the inverter may vary in a wide range, for example, 100w,200w,500w,1kw, even 2KW, etc., according to the specific location and application scenario of the product.

Even if the nominal voltage values match, there is still a risk of supplying dc power to the ac installation 23-ii. The reason is that some electrical components inside some ac devices 23-ii cannot normally operate under dc power, and burn-out or non-operation may occur. For example, if the ac equipment 23-ii includes an inductive motor or other inductive elements, the inductive motor may be burned when supplying dc power, and if the speed regulation device or the speed stabilization device is protected in the ac equipment 23-ii, the ac equipment 23-ii may not work when supplying dc power. Meanwhile, since the ac power output from the ac device connection terminal is limited by the maximum power of the inverter 81-ii, the ac device connection terminal is not suitable for supplying power to some high-power ac devices even in the case of outputting ac power. In order to solve one or more of these problems, as shown in fig. 12-ii and 13-ii, the power transmission apparatus 1-ii further includes an output selection module 80-ii, and the output selection module 80-ii selects an operation power output mode of the ac device connection terminal according to a characteristic of the ac device 23-ii to which the ac device connection terminal is connected. For example, the output selection module 80-ii detects whether the ac device 23-ii at the ac device connection terminal is suitable for being driven by dc power, and if so, the ac device connection terminal outputs dc power; otherwise, no direct current is output. For another example, the output selection module 80-ii detects whether the ac device at the ac device connection terminal is a device having a power smaller than a specific value, and if so, the ac device connection terminal outputs a low-power ac power, otherwise, the ac power is not output. See the description below for details.

When the alternating current equipment connecting end detects that the alternating current equipment 23-II is connected with the alternating current equipment, before the working energy is output, a testing energy is output for testing the characteristic of the alternating current equipment 23-II, and the characteristic is characterized by the working parameter of the alternating current equipment under the testing energy. The output selection module 80-II then selects an operating energy output mode based on the operating parameter. For example, dc power, ac power or no operating power is output. The testing energy is controlled to be smaller than the working energy so as to avoid damaging the alternating current equipment. In this embodiment, the test energy is limited in a predetermined manner, for example, by limiting the output power and/or the output time of the test energy.

After the working parameters of the alternating current equipment are obtained through the test energy, the output selection module judges whether the working parameters meet preset conditions or not, and accordingly the working energy output mode is selected correspondingly. For example, if the operating parameter satisfies the shutdown condition, the operating energy is not output, if the operating parameter satisfies the dc output condition, the dc operating energy is output, and if the ac output condition is satisfied, the ac operating energy is output.

The circuit principle by which the output selection module 80-ii effects switching of output dc power and ac power is described below in conjunction with fig. 12-ii and 13-ii.

Referring to fig. 12-ii, the output selection module 80-ii includes the aforementioned battery pack 27-ii and inverter 81-ii, and also includes a bypass controller 85-ii. The bypass controller 85-ii can selectively control whether the inverter 81-ii is connected to the power transmission path. In the state of fig. 12-ii, the bypass controller 85-ii closes two switches 87-ii at two ends of the inverter 81-ii in the diagram to control the inverter 81-ii to be connected to the power transmission path, and the dc power output by the battery pack is converted by the inverter and then converted into ac power to be transmitted to the ac device connection end in the output component 13-ii, and then transmitted to the ac device through the ac device connection end. In the present embodiment, the voltage provided by the battery pack is 120V, and the ac voltage output after the inverter conversion is also 120V. It should be noted that the battery pack illustration herein is merely exemplary, and that in practice a plurality of battery packs may be connected in series to form a voltage of 120V.

In fig. 13-ii, the bypass controller 85-ii bypasses the inverter from the circuit transmission path, opens the switch 27 at both ends of the inverter, closes the switch 87-ii between the battery pack and the ac device connection terminal, and directly supplies the power at the battery pack 27-ii to the ac device 23-ii.

In this embodiment, the test energy includes a direct current test energy and an alternating current test energy, and correspondingly, the working parameters also include a direct current working parameter and an alternating current working parameter. The following is a detailed description of how to select the working energy output mode according to the dc working parameters, the ac working parameters and the preset judgment conditions.

Fig. 14-ii is a flow chart of the system when the first port outputting the dc working energy is connected to the ac device.

As shown in fig. 14-ii, first, the first port outputs AC test energy, which is provided by the aforementioned inverter, i.e., the AC test energy is 120V AC, and the rated power of the AC test energy, i.e., the rated power of the inverter, is small, such as less than 300W. Smaller inverters can reduce the size and cost of the system.

Subsequently, the test current I1 at the AC test energy is detected. Since the initial operation of the ac device during power-on is not stable yet and the current fluctuation is large, in this embodiment, the current value of the test current I1 is detected after the preset power-on time, which is specifically 3 seconds. In addition, the test current I1 is direct current before inversion because the value of the detection direct current is simpler and more reliable than the value of the detection alternating current.

In the step of applying the AC test energy to the AC device, the system limits the test energy by limiting the output power of the AC test energy; and meanwhile, the test energy is limited by limiting the output time of the AC test energy, for example, after the value of the test current I1 is measured, the system stops the output of the AC test energy, namely, the output time is limited to 3 seconds.

And after the test current I1 is measured, the first port stops outputting AC test energy, and the AC test energy is converted into DC test energy which is output to the AC equipment. The DC test energy was 120V DC as described above.

Subsequently, the test current I2 at the DC test energy is detected. Similarly, since the initial operation of the ac device is not stable, the current value of the test current I2 is detected after the preset time of the ac device, but at the same time, since there is a risk that the ac device is connected to the dc power, the connection time of the dc power during the test cannot be too long, and the dc power is disconnected within the preset time of the ac device. Specifically, the present embodiment detects the test current I2 when the power is applied for 0.5 second, and immediately cuts off the dc output after the detection is completed. Also, since the value of the detected direct current is simpler and more reliable than the value of the detected alternating current, the test current I2 is the direct current before inversion, and the sampling position is the same as the sampling position of the test current I1.

In the step of applying the DC test energy to the ac device, the system limits the test energy by limiting the output duration of the DC test energy, i.e. the system stops the output of the DC test energy after the value of the test current I2 is measured.

After the test current I1 value and the test current I2 value are obtained, the output selection module 80-II compares the magnitudes of the test current I1 and the test current I2, if the magnitude relation satisfies the direct current output condition, the first port is enabled to output direct current working energy, and if the magnitude relation does not satisfy the direct current output condition, or satisfies the turn-off condition, the working energy is not output.

The process mainly detects whether the risk of burning the machine exists when the alternating current equipment 23-II is connected with the direct current, as mentioned above, the risk of burning the machine mainly comes from inductive loads such as an induction motor in the alternating current equipment 23-II, and the inductive loads work normally under the alternating current, but under the direct current, after the current is stable, basically no resistance exists, which can cause the alternating current equipment 23-II to be short-circuited or the resistance is far lower than that of the alternating current equipment working normally, and further cause the current to be too large and the machine is burned. Based on the characteristic of the inductive load, the process mainly judges whether the test current I2 under the direct current test energy is far larger than the test current I1 under the alternating current test energy, if the I2 is far larger than the I1, the impedance of the alternating current equipment 23-II when alternating current is conducted is far larger than the impedance when direct current is conducted, that is, the inductive load exists in the alternating current equipment, namely the inductive load is an approximate rate event, and at the moment, the output selection module 80-II selects not to output the working energy; if the difference between the values of I2 and I1 is within a reasonable range, for example, I2 and I1 are substantially equivalent, or the proportional relationship or difference between I2 and I1 is within a preset range, or even if I2 is smaller than I1, it indicates an approximate probability event when there is no inductive load in the ac device, and at this time, the output selection module 80-ii selects to output the dc operating energy.

Based on the above judgment principle, the dc output condition of this embodiment is I2<10 × I1, and correspondingly, the turn-off condition is I2 ≧ 10 × I1. In other embodiments, the dc output condition is I2<5 x I1, and correspondingly, the turn-off condition is I2 ≧ 5 x I1. In another other embodiment, the DC output condition is I2< I1+10A, and correspondingly, the turn-off condition is I2 ≧ I1+10A. The specific judgment conditions are different according to different application scenarios, and are not listed here.

Fig. 15-ii is a flow chart of the system operation when the second port 55-ii is connected to the ac device 23-ii. The second port 55-ii outputs dc operating energy.

As shown in fig. 15-ii, first, the second port 55-ii outputs AC test energy, which is provided by the aforementioned inverter 81-ii, i.e., AC test energy is 120V AC, and the rated power thereof, i.e., the rated power of the inverter 81-ii is small, such as less than 300W.

Subsequently, the test current I1 at the AC test energy is detected. Since the initial operation of the ac device 23-ii during energization is not stable yet and the current fluctuation is large, in this embodiment, the current value of the test current I1 is detected after the preset time of energization, specifically, the preset time is 3 seconds. Similarly, the test current I1 is a direct current before inversion.

In the step of applying AC test energy to the AC device 23-ii, the system limits the test energy by limiting the output power of the AC test energy; meanwhile, the test energy is also limited by limiting the output duration of the AC test energy, for example, after the value of the test current I1 is obtained through measurement, if the AC working energy is judged not to be output, the system stops the output of the AC test energy, that is, the output duration is limited to 3 seconds.

After the test current I1 is measured, the output selection module 80-II compares the test current I1 with a preset current value, if the magnitude relation satisfies the AC output condition, the second port is made to output AC working energy, and if the AC output condition is not satisfied, or the turn-off condition is satisfied, the AC working energy is not output.

In the present embodiment, the ac output condition is that the test current I1 is smaller than a predetermined current value, for example, smaller than a predetermined current value 2.5A. The turn-off condition is that the test current I2 is greater than a preset current value, for example, greater than a preset current value of 2.5A.

After the alternating current working energy is output, the system still continuously detects the output power of the second port 55-II, and if the output power is smaller than a preset value, the alternating current working energy is kept to be output; if the output power is larger than the preset value, the power is turned off, and the output of the alternating current working energy is stopped.

The process mainly detects whether the load of the connected ac electrical appliance 23 is within the tolerance range of the power supply device. More specifically, it is detected whether or not the power of the AC device connected is below the rated power of the DC-AC inverter 81-ii. For example, if the rated power of the inverter is 300W and the ac output voltage is 120V, the test current I1 should be less than 2.5A. If the test current is measured to be larger than 2.5A during detection, the output selection module judges that the load of the alternating current equipment is too large and exceeds the bearing range of the inverter 81-II, and alternating current working energy is not output; similarly, when the working current is measured to be larger than 2.5A during working, the output selection module also selects to be switched off, and the output of the alternating current working energy is stopped.

In this embodiment, the output power of the dc operating energy at the first port is greater than the output power of the ac operating energy at the second port. For example, the output power of the first port may reach more than 2KW, or even 5KW. Whereas the output power of the second port is only 200W-500W.

The above-described configurations of the ac equipment interface 19-ii of the present embodiment are intended to optimize the overall performance of the system in terms of power transmission efficiency, cost, volume, and adaptation. The electric energy supply device has better portability by using the battery pack as a direct current power supply, and can be carried by a user to various occasions without electric energy supply to be used as a power supply, such as picnic, outdoor operation and the like.

However, many electric devices are AC devices, such as various chargers, microwave ovens, AC power tools, etc., and the conventional DC power supply cannot supply power to these AC devices, mainly because if the power supply needs to provide AC power output, an inverter needs to be provided for AC-DC conversion, which has two main disadvantages, i.e. 1, the power loss during the conversion process is large, usually above 25%, and considering the limited storage capacity of the DC power source such as a battery pack, etc., the loss at this level will lead to a significant reduction in the working time and affect the usability of the product. 2. The inverter has high cost, large volume and heavy weight, and the cost, the volume and the weight of the inverter can be increased along with the increase of the rated output power of the inverter, so that the electric energy supply device is expensive and heavy, and the purchase desire and the use desire of customers are reduced. If direct current is provided to the ac equipment, there is a potential risk as described above.

In order to solve the above problem, the ac device interface of the present embodiment provides a dc voltage output substantially equivalent to the ac voltage, and an ac voltage output with low power consumption. Therefore, alternating current equipment with larger power consumption, such as a microwave oven, an alternating current tool and the like, is powered by direct current electric energy, the efficiency loss is low, the working time is long, meanwhile, the power supply to alternating current equipment which is not suitable for direct current driving is avoided through the output selection circuit, and the safety is ensured; meanwhile, low-power alternating-current electrical appliances such as various chargers and lamps are powered by alternating-current electric energy, although the conversion efficiency is lost, the total energy loss is small because the power consumption is small; also, since the inverter consumes less power, the cost and the volume of the power supply device are not increased greatly. In summary, the ac device interface of the present embodiment meets the power supply requirement of a large part of ac devices, and has low cost and volume increase and low total energy loss.

Fig. 16-ii is a schematic diagram of an output component according to another embodiment of the present invention. Similarly, the output component includes a dc device interface 41-ii and an ac device interface 51-ii, and unlike the previous embodiment, the dc device interface 41-ii and the ac device interface 51-ii of the present embodiment each include only one output terminal, the dc device connection terminal 43-ii of the dc device interface 41-ii is capable of outputting a plurality of voltages, and the ac device connection terminal 53-ii of the ac device interface 51-ii is capable of outputting both dc power and ac power.

The dc device connections 41-ii select different output voltages depending on the device to which they are connected. As shown in fig. 11-ii, in this embodiment, the dc device connection provides power to the dc device through the adapter 61-ii. The dc link selects different output voltages by identifying different adapters. Specifically, the DC device connection end 43-II is substantially shaped as a jack. The adapter has an input terminal 63-II and an output terminal 65-II, the input terminal 63-II being a plug for mating with the aforementioned jack, and the output terminal 65-II mating with the power input terminal of the DC device, for example, the DC device is a power tool 100-II equipped with a detachable battery pack, and the output terminal of the adapter and the interface portion of the battery pack of the power tool are in correspondence so as to be able to be coupled to and supply power to the power tool 100-II.

As shown in fig. 17-ii, a plurality of terminals are disposed in the aforementioned socket-shaped dc device connection terminal 43-ii, and include a plurality of identification terminals 47-ii in addition to the positive and negative power supply terminals 45-ii; a plurality of terminals are also arranged on the input of the adapter as in fig. 18-ii, including a feature terminal 69-ii in addition to the positive and negative power supply terminals 67-ii. The plug hole and the plug are provided with matched guide structures, so that the plug can only be inserted into the plug hole at a specific angle, when the plug is inserted, the positive terminal and the negative terminal of the plug and the plug hole are butted with each other, and the characteristic terminal 69-II is matched with a specific identification terminal 47-II, so that the direct current equipment interface 17-II of the output component 13-II can determine the type of the connected adapter 61-II through which characteristic terminal 69-II is matched with the identification terminal 47-II, and correspondingly output specific voltage.

In this embodiment, four adapters 61-II are provided, with their inputs 63-II coupled to the aforementioned DC device connections 43-II to trigger the DC device connections 43-II to provide 20V, 40V, 60V and 120V DC operating power, respectively, and their outputs 65-II adapted to be coupled to 20V, 40V, 60V and 120V power tools 100-II, respectively.

Similar to the previous embodiment, as shown in fig. 20-ii, the AC device connection end, specifically the first port 53-ii, is also a standard AC jack into which a plug of an AC device can be inserted. The difference is that the output selection module can judge the type of the alternating current equipment through the test energy and select to output direct current working energy, alternating current working energy or not to output working energy.

Fig. 21-ii is a flow chart of the system when the ac device connection terminal of the present embodiment is connected to the ac device 23-ii.

As shown, first, the AC equipment connection outputs AC test energy, which is provided by the aforementioned inverter, i.e. the AC test energy is 120V AC, and the rated power of the AC test energy, i.e. the rated power of the inverter, is less than a specific value, such as less than 300W.

Subsequently, the test current I1 at the AC test energy is detected. Since the initial operation of the ac device is not stable, the current value of the test current I1 is detected after the preset time of the power-on, specifically, the preset time is 3 seconds. As in the previous embodiment, the test current I1 is dc before inversion.

In the step of applying the AC test energy to the AC device, the system limits the test energy by limiting the output power of the AC test energy; meanwhile, the test energy is also limited by limiting the output duration of the AC test energy, for example, after the value of the test current I1 is obtained through measurement, if the AC working energy is judged not to be output, the system stops the output of the AC test energy, that is, the output duration is limited to 3 seconds.

After the test current I1 is measured, the output selection module 80-II compares the test current I1 with a preset current value, and if the magnitude relation meets the AC output condition, the connecting end of the AC equipment is made to output AC working energy. In the present embodiment, the ac output condition is that the test current I1 is smaller than a predetermined current value, for example, smaller than a predetermined current value 2.5A.

After the alternating current working energy is output, the system still continuously detects the output power of the connecting end of the alternating current equipment, and if the output power is smaller than a preset value, the alternating current working energy is kept to be output; if the output power is larger than the preset value, the power is turned off, and the output of the alternating current working energy is stopped.

The above steps mainly detect whether the load of the accessed ac device 23-ii is within the tolerance range of the power supply apparatus. If the output selection module 80-II judges that the load of the alternating current equipment is too large and exceeds the bearing range of the inverter 81-II, the alternating current working energy is not output; similarly, if the measured test current is greater than 2.5A when the working energy is output, the output selection module also selects to turn off, and the output of the alternating-current working energy is stopped.

When the output selection module 80-II compares the test current I1 with the preset current value, if the magnitude relation does not meet the AC output condition, the output selection module continues to detect whether the AC equipment 23-II is suitable for accessing the DC working energy. Specifically, the AC device connection terminal stops outputting AC test energy, and instead outputs DC test energy to the AC device 23-ii. The DC test energy was 120V DC as described above.

Subsequently, the test current I2 at the DC test energy is detected. Similarly, the current value of the test current I2 is detected after the preset time of energization in the present embodiment because the initial operation of the ac device 23-ii is not stable yet, but at the same time, because there is a risk that the ac device is energized with dc current, the energization time of the dc current at the time of test cannot be too long, and the dc current is also turned off within the preset time of energization in the present embodiment. Also, the present embodiment detects the test current I2 at the time of energization for 0.5 seconds, and cuts off the direct current output immediately after the detection is completed. Also, since the value of the detected direct current is simpler and more reliable than the value of the detected alternating current, the test current I2 is the direct current before inversion, and the sampling position is the same as the sampling position of the test current I1.

In the above step of applying the DC test energy to the ac device 23-ii, the system limits the test energy by limiting the output duration of the DC test energy, i.e. the system stops the output of the DC test energy after the value of the test current I2 is measured.

After the test current I1 value and the test current I2 value are obtained, the output selection module 80-II compares the magnitudes of the test current I1 and the test current I2, if the magnitude relation satisfies the direct current output condition, the connecting end of the alternating current equipment 23-II is made to output direct current working energy, and if the direct current output condition is not satisfied, or the turn-off condition is satisfied, the working energy is not output.

As in the previous embodiment, the dc output condition of this embodiment is I2<10 × I1, and correspondingly, the turn-off condition is I2 ≧ 10 × I1.

In this embodiment, the dc device interface 17-ii has only one dc device connection terminal 43-ii, and outputs a plurality of voltages through one port, so that the user only needs to connect the dc device 21-ii to the dc device connection terminal 43-ii without selecting an interface, and the dc device connection terminal 43-ii outputs a corresponding voltage, which is relatively simple and direct to operate. The alternating current equipment 23-II is also only provided with one alternating current equipment connecting end, a user only needs to connect the alternating current equipment 23-II to the alternating current equipment connecting end, the alternating current equipment connecting end can automatically detect the characteristics of the alternating current equipment and correspondingly output direct current working energy, alternating current working energy or no working energy, and the operation is simple and direct.

Another embodiment of the present invention is described below in conjunction with fig. 22-ii.

Referring to fig. 22-ii, the power transmission device 1-ii includes an input interface 101-ii, a control circuit 102-ii, and an ac equipment interface 19-ii. Similar to the previous embodiment, the input interface 101-II is coupled to one or more battery packs 27-II to receive DC power inputs from the battery packs 27-II, and the AC device interface 19-II is coupled to an AC device to transfer power received from the battery packs 27-II to the AC device.

The control circuit 102-II is located between the input interface 101-II and the AC device interface 19-II and is used for controlling the power output mode of the AC device.

The control circuit 102-II includes a controller 110-II, a conversion circuit 103-II, a detection unit 105-II, a power-off unit 107-II, a DC drive unit 112, an AC drive unit 114-II, and an output selection unit 116-II. The control circuit 102-ii further includes other specific components required for implementing various functions, which are not described in detail herein.

The conversion circuit 103-II is connected with the input interface 101-II, and the electric energy of the battery pack 27-II is normalized and collected and transmitted to the interior of the control circuit. Specifically, taking the dc energy storage module composed of the two 60V battery packs as an example, the two 60V battery packs collectively include 6 20V secondary energy storage modules 73-ii, the input interface 101-ii correspondingly includes 6 sets of input terminals, and each set of input terminals includes a pair of positive and negative electrodes. The conversion circuit 103-II is connected with the 6 groups of input terminals, and the electric energy of the input terminals is collected and then output to the control circuit 102-II through a pair of positive and negative terminals. In this embodiment, the converter circuit 103-ii is a series circuit in which 6 sets of input terminals are connected in series, and outputs 120V of dc power.

The electric energy output by the conversion circuit 103-II has two output paths, one of which is output to the alternating current equipment interface through the direct current driving unit and the output selection unit, and the direct current driving unit does not change the alternating current and direct current form of the electric energy and only regulates and controls the external output of the direct current electric energy. The other is output to an alternating current equipment interface through an alternating current driving unit and an output selection unit, and the alternating current driving unit converts direct current electric energy into alternating current electric energy to be output. The AC drive unit may be a DC-AC inverter.

The output selection unit 116-ii connects the dc drive unit 112 and the ac drive unit 114-ii alternatively to the ac equipment interface 19-ii so that the ac equipment interface 19-ii does not output both dc power and ac power. The detection unit 105-ii detects an operation parameter of the control circuit, such as a detection current, a detection voltage, and the like.

The power-off unit 107-ii is used to disconnect the power output of the control circuit to the ac equipment interface 19-ii.

The controller 110-ii is connected to the aforementioned various components and units for controlling the various functions of the control circuit 110. As shown in fig. 23-ii, the controller 110-ii includes a test control unit 1101-ii, a detection control unit 1102-ii, a safety judgment unit 1103-ii, and an output control unit 1104-ii. The test control unit 1101-II controls the output selection unit 116-II to make the control circuit 110 output the test energy to the AC device interface 19-II; the detection control unit 1102-II receives the test operation parameters measured by the detection unit 105-II under the test energy; the safety judgment unit 1103-II judges whether the alternating current equipment connected with the alternating current equipment interface 19-II is suitable for direct current electric energy or alternating current electric energy driving work according to the test operation parameters; the output control unit 116 receives the judgment result of the safety judgment unit 1103-ii, and controls the output selection unit 116-ii to correspondingly connect one of the dc driving unit 112 and the ac driving unit 114-ii to the ac device interface 19-ii, or controls the control circuit 110 to turn off the power output to the ac device interface 19-ii.

Specifically, when the safety judgment unit judges that the alternating current device connected to the alternating current device interface is suitable for being driven by the direct current power, the output control unit controls the output selection unit to connect the direct current driving unit to the alternating current device interface. When the safety judgment unit judges that the alternating current equipment connected with the alternating current equipment interface is suitable for being driven by alternating current electric energy, the output control unit controls the output selection unit to connect the alternating current driving unit to the alternating current equipment interface. When the safety judgment unit judges that the alternating current equipment connected with the alternating current equipment interface is not suitable for being driven by the alternating current circuit or the direct current electric energy, the output control unit controls the control circuit to turn off the electric energy output to the alternating current equipment interface.

Similar to the previous embodiment, the test energy includes a dc test energy and an ac test energy, and the output duration and/or output power of the dc test energy and the ac test energy are limited by preset parameters. Accordingly, the operating parameters include dc operating parameters at dc test energy and ac operating parameters at ac test energy. And the safety judgment unit judges whether the alternating current equipment is suitable for the driving work of the direct current electric energy or the alternating current electric energy according to the relative relation between the direct current operation parameter and the alternating current operation parameter. The specific relative relationship thereof is similar to that in the previous embodiment, and the description is not repeated.

The ac device interface 19-ii of this embodiment may only have one ac device connection terminal, which is a single port and may output either dc power or ac power; the ac device interface may also have two ac device connection terminals, one of which is capable of outputting dc power and the other of which is capable of outputting ac power, and more preferably, one of which is only capable of outputting dc power and the other of which is only capable of outputting ac power. The aforementioned AC equipment connection terminal is a standard AC outlet.

In this embodiment, an output port of the ac device interface, that is, a connection end of the ac device, is provided with a start switch 261-ii of the power transmission device, the start switch 261-ii controls the on and off of the power transmission device, and when a power connector of the ac device is connected to the output port, the start switch 261-ii is triggered to be turned on; and when the power connector is separated from the output port, the starting switch 261-II is triggered to be closed. Specifically, the start switch 261-II is a microswitch. In other embodiments, the enable switch 261-II may be disposed in an output port at other locations, such as an output port of a DC device interface.

In this embodiment, when the electrical equipment connected to the ac equipment interface does not work for a long time, the controller may instruct the power transmission device to turn off to save the power of the battery pack. Specifically, the aforementioned detection unit 105-ii detects the load condition of the connected electric device, and the power cut-off unit 107-ii can be selectively disconnected to stop the power output from the power transmission device to the electric device. And when the load condition meets a preset condition, the controller instructs the power-off unit to be switched off, wherein the preset condition is that the load is smaller than a preset value and reaches a preset duration. Specifically, the detection unit detects a load condition of the electric device by detecting a current in the control point circuit. In other embodiments, when the electric device connected to the other type of output port (e.g., the output port of the dc device interface) does not work for a long time, the controller may also instruct the power transmission device to turn off to save the power of the battery pack. The specific manner and logic are similar and are not described in detail.

In a similar embodiment, the controller of the control circuit also comprises a test control unit, a detection control unit, a safety judgment unit and an output control unit; the safety judgment unit judges whether the alternating current equipment connected with the alternating current equipment interface is suitable for alternating current power driving work or not according to the test operation parameters; and the output control unit receives the judgment result of the safety judgment unit, and controls the output selection unit to correspondingly connect the alternating current driving unit to the alternating current equipment interface or controls the control circuit to cut off the electric energy output to the alternating current equipment interface.

In a similar embodiment, the control circuit also includes a controller 110-II, a conversion circuit 103-II, a detection unit 105-II, a power-down unit 107-II, a DC drive unit 112-II, an AC drive unit 114-II, and an output selection unit 116-II. The difference is that the AC driving unit 114-ii does not include a DC-AC inverter, but includes a bridge circuit that converts the DC power input by the converter circuit 103-ii into an alternating square wave current for transmission to the AC device interface 19-ii. The maximum output power of the ac drive unit 114-ii is greater than 500W, and further greater than 1000W, 1500W or 2000W. The frequency of the alternating square wave current lies between 50Hz and 200 Hz.

Inverters can provide sine wave ac current, but are costly, bulky, and have high energy losses in conversion. The bridge circuit can only provide wave type alternating current, but has the advantages of low cost, small volume and low energy loss, and can also be applied to most alternating current appliances.

In a similar embodiment, the AC drive unit 114-ii of the control circuit likewise does not comprise a DC-AC inverter, but rather comprises a bridge circuit which converts the DC electrical energy input by the converter circuit 103-ii into alternating square-wave currents which are supplied to the AC device interface 19-ii. The difference is that the control circuit does not provide direct current power output any more, and correspondingly does not include a direct current driving unit and an output selection unit.

In a similar embodiment, the AC drive unit 114-ii of the control circuit also does not comprise a DC-AC inverter, but rather comprises a bridge circuit which converts the DC electrical energy input by the converter circuit 103-ii into alternating square-wave currents for transmission to the AC device interface 19-ii. And the electric energy transmission device also comprises a direct current equipment interface and a related circuit, and forms an electric energy transmission system with the adapter. The specific content thereof is similar to the related structure in other embodiments, and the description is not repeated.

An operating system of the present invention is described below in conjunction with fig. 24-ii.

As shown in fig. 24-ii, the working system includes an energy storage component, an electric power transmission device 1-ii, an adapter 61-ii, and a dc tool 130-ii. The energy storage component is specifically a battery pack 27-II; the electric energy transmission device 1-II is connected with the battery pack 27-II, is provided with an input interface 101-II for connecting the battery pack 27-II and receiving the electric energy input thereof, and is also provided with a direct current equipment interface 17-II for connecting and supplying power to direct current equipment; the adapter 61-ii is connected between the dc device interface 17-ii of the power transmission device 1-ii and the dc device 130-ii, and transmits the power of the power transmission device 1-ii to the dc device.

The power transmission device 1-ii and the adapter 61-ii constitute a power transmission system.

The energy storage component comprises two 60V battery packs 27-II, and each 60V battery pack comprises 3 20V secondary energy storage modules 73-II. Each secondary energy storage module 72 has a set of power terminals, each set of terminals including a pair of positive and negative poles. Also, each battery pack has at least one set of signal terminals, and in this embodiment each battery pack has a set of temperature terminals, shown as T + and T-. Thus, 4 sets of 8 terminals are arranged on the output interface of each battery pack. Two battery packs have 8 sets of 16 terminals.

The input interface 101-ii of the power transmission device 1-ii is arranged with corresponding sets of terminals, i.e. 8 sets of terminals, 16 terminals for one-to-one docking of two battery packs 27-ii. The direct current equipment interface 17-II of the electric energy transmission device 1-II is also correspondingly provided with a plurality of groups of terminals, specifically 8 groups of terminals, and 16 terminals are connected with a plurality of groups of terminals on the input interface 101-II in a one-to-one manner. In this way, the power transmission device 1-ii 01 leads the terminals of the secondary energy storage module 72-ii directly out to the dc device interface 101. The adapter 61-ii has an input interface, a series-parallel circuit and an output interface. The input interface of the adapter 61-II is detachably connected with the direct current equipment interface 101-II, and terminals on the adapter are in one-to-one correspondence with the terminals of the direct current equipment interface 101; the series-parallel circuit 30-ii is connected to a plurality of groups of terminals of the input interface, and converts the input electric energy into a preset voltage by configuring the series-parallel relationship among the plurality of groups of terminals, and transmits the preset voltage to the output interface of the adapter 61-ii. The output interface of the adapter 61-ii mates with and can interface with a corresponding dc device to provide power to the dc device.

In a variation of this embodiment, the power transfer device has 4 60V battery pack ports, and correspondingly, there are 16 sets of terminals disposed on the input port to mate the terminals of the two battery packs 27-ii in a one-to-one manner. But the difference is that the terminals of the input interface and the dc device interface do not correspond to each other, but two groups of power terminals are connected in parallel to form one group of power terminals. In this way, the 4 60V battery pack positions can work properly when two battery packs are inserted and 4 battery packs are inserted, and the adapter does not need to make changes in terminal layout for both scenarios.

In this embodiment, the number of the adapters 61-ii is plural, and they are interchangeably connected to the dc device interface, and at least two of the output voltages are different from each other. It is understood that the different output voltages are realized by different series-parallel circuits, for example, the series-parallel circuit of an adapter connects 6 sets of input terminals except the signal terminal to the output terminal of the adapter in series after connecting them in parallel every 2, thereby externally providing an output voltage of 60V. A series-parallel circuit of an adapter connects 6 sets of input terminals except signal terminals in parallel to output terminals of the adapter in series after connecting them in parallel every 3, thereby externally supplying an output voltage of 40V. A series-parallel circuit of an adapter connects 6 sets of input terminals except signal terminals in parallel with each other to output terminals of the adapter in series to supply an output voltage of 20V to the outside. A series-parallel circuit of an adapter connects 6 sets of input terminals except signal terminals to output terminals of the adapter after being connected in series with each other, thereby externally supplying an output voltage of 120V.

The adapter 61-II further comprises a battery pack protection circuit 121-II, specifically at least one of a battery pack overcurrent protection circuit, an undervoltage protection circuit and an overtemperature protection circuit. The arrangement of the battery pack protection circuit in the adapter 61-ii instead of the power transmission device 1-ii has certain advantages, for example, although each adapter is connected with the same energy storage component, the same two battery packs, but the required protection current, undervoltage value and the like are different due to the difference of the series-parallel connection relation and the final output voltage, but the output parameters are determined in each adapter, so the battery packs can be protected more specifically in the adapter.

The adapter 61-II also includes a wake-up button thereon. As described in the previous embodiments, the power transfer device has a power-off function, and the port power is output when the load connected at the interface is low to save the power of the battery pack. The wake-up button is used to restart the tool when the user needs to use the tool again after the power transmission device is powered off.

The adapter 61-II is also provided with a status indicator for indicating whether the consumer power transmission device is in an operational state or a power-off state.

In this embodiment, the work system includes a series of abnormality reminding devices. Such as power indications, over-current alerts, over-temperature alerts, etc. The abnormality warning device may be disposed on the output interface of the adapter so as to be relatively close to the user and easily perceived.

In this embodiment, the dc device 130 is a dc power tool.

In some scenarios, the dc power tool is a high voltage hand held power tool, such as a power tool greater than 50V, greater than 60V, or even greater than 100V. In this case, a 120V hand held power tool. In this scenario, because the battery pack is too heavy under high voltage conditions, if installed on an electric tool, it can be very laborious for the user, and can bring about a poor use experience and a risk of falling. Therefore, in this scenario, the handheld power tool does not have a battery pack supporting device, but only has one power input interface; the corresponding adapter 61-II comprises an input interface, an output interface and a connecting wire between the input interface and the output interface; the output interface and the connecting wire form a cable type electric energy output part.

That is, the battery pack 27-ii is supported in the working system by a battery pack supporting device, the power transmission device is provided separately from the dc tool, the power transmission device outputs power to the dc tool through a cable-type power output portion, the battery pack supporting device is disposed only on the power transmission device, and the power input interface on the dc tool includes only a port to which the cable-type power output portion is coupled.

In some scenarios, the dc power tool is a high voltage hand-push power tool, the hand-push power tool is supported on the ground for a large part of its weight, and has a push rod and a main body, and the main body is moved on the ground surface by a user pushing the push rod, typically a hand-push mower.

Since the weight of the hand-push type power tool does not need to be lifted by a user, a heavy battery pack can be mounted on the power tool even at a high voltage. Thus, the power tool in the working system has 2 sets of input interfaces, one set of input interfaces is used for receiving the weight and the electric energy of the battery pack, and the other set of input interfaces is used for receiving the electric energy of the electric energy transmission device. In this embodiment, the battery pack input interface of the power tool includes two battery pack interfaces, which respectively receive a 60V battery pack and bear the weight thereof. The electric energy interface of the electric energy transmission device is a cable type electric energy output part interface and is used for being matched and connected with the cable type electric energy output part.

The arrangement of the cable-type power output portion on the push rod, more specifically, on the upper portion of the push rod, is due to the fact that in this embodiment, the power transmission device is a wearable device, such as a backpack. The push rod is a part closest to the body of a user on the hand-push type electric tool, and the cable type electric energy output part can be conveniently plugged in and pulled out by the user when the push rod is arranged at the position, and the phenomenon that the cable is too long, the floor is dragged, and even the user is stumbled is avoided.

In this scenario, the hand-push electric tool may be powered by only one of the battery pack and the cable power output unit, or may be powered by both the battery pack and the cable power output unit. In this scenario, the battery pack interface of the hand-push electric tool is connected in parallel with the cable-type electric energy output part interface.

Another embodiment of the present invention is described below.

Similar to the previous embodiment, the power transfer device includes an input interface, a control circuit, and an output interface. The output interface comprises a plurality of connecting ends used for connecting external equipment, and an interlocking mechanism is arranged among the connecting ends, so that only one of the connecting ends can transmit electric energy to the external electric equipment at the same time. Specifically, the output interface includes a dc device interface and an ac device interface, and the dc device interface and the ac device interface each include at least one of the connection terminals.

In one embodiment, the interlock mechanism is a mechanical interlock mechanism. Mechanical interlocking mechanism is including setting up the locking piece on each link to and the interlock piece between each locking piece, the locking piece is movable between latched position and unblock position, and when latched position, the locking piece forbids the power end electricity connection of link and consumer, and when the unblock position, the locking piece allows the power end electricity connection of link and consumer; and when arbitrary link and power end electricity were connected, its locking piece was fixed in the unblock position, and this locking piece drive interlock spare makes other all locking pieces fix at the latched position.

Specifically, the connecting ends are jacks, the number of the connecting ends is two, the mechanical interlocking mechanism is a locking rod, the locking rod is located between the two jacks, two ends of the locking rod movably extend into the two jacks respectively to form two locking pieces, and the part between the two ends of the locking rod forms the linkage piece.

In other embodiments. The interlocking mechanism is an electronic interlocking mechanism.

Another embodiment of the present invention is described below.

The working system of the embodiment further comprises a charger besides the energy storage component, the electric energy transmission device and the electric equipment.

In this embodiment, the energy storage component includes two 60V battery packs, and each battery pack includes 3 20V secondary energy storage modules. The charger is provided with two battery pack interfaces, and can charge two battery packs simultaneously.

The charger comprises a protection circuit, in particular an overcharge protection circuit and an over-temperature protection circuit. The overcharge protection circuit provides independent protection for each secondary energy storage module; the over-temperature protection circuit provides individual protection for each battery pack.

In this embodiment, the charger is integrated in the power transmission device.

In this embodiment, the two battery packs can be charged only at the same time, and cannot be charged individually. Therefore, mutual charging caused by inconsistent voltage of the double packs during work can be avoided.

In this embodiment, the power transmission device is a wearable device, such as a backpack, a shoulder strap, a waist belt, or the like. Alternatively, however, the power transmission device may be a portable case having a handle thereon, and may have a roller, a push rod, and the like.

In an alternative embodiment, the power transmission device may also be a base having a high power inverter therein, for example, an inverter greater than 1000W, to provide high power ac power.

In an alternative embodiment, the working system further comprises a storage box, wherein the storage box is provided with a plurality of bins for respectively accommodating the electric energy transmission device, the plurality of adapters and the battery pack. In some embodiments, it is also possible to accommodate small electrical devices such as dc power tools. The working system is convenient for users to arrange and carry.

Another embodiment of the present invention will be described below with reference to fig. 25-ii to 29-ii. This embodiment is substantially similar to the first embodiment. The main difference lies in the configuration of the patching circuits and the choice of different series-parallel configurations.

In this embodiment, a plurality of micro switches are disposed between the standard battery cells, and a change in the on-off combination of the plurality of micro switches causes a change in the series-parallel connection relationship of the standard battery cells, which further causes the combination of the standard battery cells to output different voltages, such as 20V, 40V, 60V, and 120V. The operating panel 200-ii is provided with a mode selection control 217-ii, such as a knob or button, which mode selection control 217-ii mechanically activates the micro-switches to select different voltage outputs.

As shown in fig. 25-ii, the energy storage system, or power supply system, is provided with an operating panel 200-ii. The operation panel 200-ii is provided with switches, the aforementioned mode selection control 217-ii, a plurality of power output interfaces, a circuit input interface (i.e., the charging interface 215-ii), and a plurality of indicator lights. The indicating lamps comprise a mode indicating lamp 203-II, a mode indicating lamp 205-II, an alarm lamp and the like, the mode indicating lamp 203-II displays the residual electric quantity through the grid number, the mode indicating lamp 205-II comprises a group of lamps located at different positions, the lamps at different positions correspond to different working states, part of the lamps indicate the electric energy output type of the energy storage system, such as 12V direct current output, 20V direct current output, 40V direct current output, 60V direct current output, 120V output and the like, and the lamps indicate that the energy storage system is in a charging mode. In this embodiment, the mode indicator 205-ii is correspondingly located near different output interfaces, for example, the 20V dc output indicator is located near the 20V output interface, the charging indicator is located near the charging interface 215-ii, and so on, so that when a lamp near a certain interface is turned on, the interface is available, intuitive and easy to understand. In this embodiment, the 12V dc output interface is a standard automotive power output interface, the 20v \/40v \/60v shares a low-voltage dc output interface 211-ii, and the 120V ac/dc shares a high-voltage output interface 213-ii. The low-voltage direct-current output interface 211-II and the high-voltage output interface 213-II can be compatible with different plugs, and different types of electric energy can be output when different plugs are inserted.

The operation panel 200-II is also provided with a plurality of 5V USB output interfaces 207-II.

Referring to fig. 26-ii, the series-parallel selection circuit of the energy storage system is connected with 6 standard battery units with the same rated voltage, and two normally open and two normally closed microswitches, namely, 5 microswitches, are connected between every two standard battery units, namely, K1 to K5 in the figure. Each microswitch has a first subswitch and a second subswitch, which are synchronously closed (ON state) and open (OFF state). When each first sub-switch is switched off, two anodes of the standard battery units at two ends of the first sub-switch are connected, and when the first sub-switch is switched on, the two anodes are disconnected; when each second sub-switch is turned off, the two cathodes of the standard battery units at the two ends of the second sub-switch are connected, and when the second sub-switch is turned on, the cathode of the standard battery unit at the left side of the second sub-switch is connected with the anode of the standard battery unit at the right side of the second sub-switch. That is, when the micro switch is turned ON (ON state), two adjacent standard battery cells are connected in series, and when the micro switch is turned OFF (OFF state), two adjacent standard battery cells are connected in parallel. Through the on-off combination of the 5 micro switches, different series-parallel circuits can be configured, so that the battery pack outputs different voltages, specifically 20V, 40V, 60V and 120V in the embodiment.

With continued reference to fig. 26-ii, there are also 4 positive output terminals in the series-parallel selection circuit and relays connected to the 4 positive output terminals, respectively, and the 4 positive output terminals output the aforementioned 4 output voltages, respectively. The mode of the relay connected with each positive output terminal corresponds to that of the energy storage system, that is, when the energy storage system is in the 20V direct current output mode, the relay corresponding to the 20V positive output terminal is turned on, and the other 3 relays are turned off, and so on. The on/off state of the relay is controlled by a controller of the energy storage system, in some embodiments, the controller detects the output voltage of the battery pack to correspondingly control the state of the relay, and in some embodiments, the controller detects the state/position of the mode selection control 217-ii or the state/position of the micro switch to correspondingly control the state of the relay.

With reference to the following table one, fig. 26-ii to 29-ii are circuit forms when the series-parallel

selection circuit outputs

20V, 40V, 60V, and 120V, respectively.

As shown in fig. 26-ii, the series-parallel selection circuit configures a series-parallel relationship among 6 standard battery cells so that the battery pack outputs a voltage of 20V. Specifically, 5 micro-switches K1 to K5 are all in an OFF state, 6 standard battery units are connected in parallel, meanwhile, the relay JQ1 is turned on, other relays are turned OFF, and the energy storage system outputs 20V voltage from the 20V port, as described above, 20V/40V/60V output interfaces are integrated into 1, and after the input end of an external adapter is inserted, the input end is connected to the negative electrode and the 20V positive electrode output terminal to receive 20V direct current power.

As shown in fig. 27-ii, the series-parallel selection circuit configures a series-parallel relationship among 6 standard battery cells so that the battery pack outputs a voltage of 40V. Specifically, K1, K2, K4, and K5 of the 5 micro switches are OFF, and K3 is ON. Thus, the first 3 of the 6 standard battery cells are connected in parallel with each other as one group, the last three are connected in parallel with each other as one group, and the two groups are connected in series with each other, thereby outputting a voltage of 40V. Meanwhile, the relay JQ2 is turned on, the other relays are turned off, the energy storage system outputs 40V voltage from the 40V port, as described above, the 20V/40V/60V output interfaces are integrated into 1, and the input end of the external adapter is inserted and then connected to the negative electrode and the 40V positive electrode output terminal to receive 40V dc power.

As shown in fig. 28-ii, the series-parallel selection circuit configures a series-parallel relationship among 6 standard battery cells so that the battery pack outputs a voltage of 60V. Specifically, K1, K3, and K5 of the 5 micro switches are OFF, and K2 and K4 are ON. Thus, 2 of the 6 standard battery cells are connected in parallel with each other in one group for 3 groups, and then three groups are connected in series with each other, thereby outputting a voltage of 60V. Meanwhile, the relay JQ3 is switched on, other relays are switched off, the energy storage system outputs 60V voltage from the 60V port, as mentioned above, 20V/40V/60V output interfaces are integrated into 1, and after the input end of the external adapter is inserted, the input end is connected to the negative electrode and the 60V positive electrode output terminal to receive 60V direct current electric energy.

As shown in fig. 29-ii, the series-parallel selection circuit configures a series-parallel relationship among 6 standard battery cells so that the battery pack outputs a voltage of 60V. Specifically, K1 to K5 of 5 micro switches are all in an ON state, and 6 standard battery cells are connected in series with each other, thereby outputting a voltage of 120V. Meanwhile, the relay JQ4 is switched on, other relays are switched off, the energy storage system outputs 120V voltage from the 120V port, as described above, the 120V direct current output interface and the 120V alternating current output interface are integrated into 1, and after an external specific plug is inserted, the energy storage system is triggered to select different modes to supply power for direct current equipment or alternating current equipment.

Another embodiment of the present invention is described below with reference to fig. 30-ii through 34-ii.

The present embodiment is similar to the previous embodiment, and has a difference in that a relay is used instead of a microswitch, and the output interface detects the type of the plug connected to automatically output different values or different types of voltages, rather than selecting the operating mode of the energy storage device by a knob or the like.

As shown in fig. 30-ii, in the present embodiment, the 5 two normally-open two normally-closed microswitches located between the 6 standard battery cells in the previous embodiment are replaced with 5 two normally-open two normally-closed relays JQ1 to JQ5. Each relay is provided with a driver circuit 270-ii. However, the circuit structure of the series-parallel circuit is not changed, and only the components are replaced. After the micro switch is replaced by the relay, the configuration switching of the series-parallel circuit does not need to be realized in a mechanical mode, but can be realized in an electric control mode. The relationship between the output voltage of the battery pack and the on/off state of the relay is the same as that in the previous embodiment, and the description thereof is omitted.

In this embodiment, the energy storage system automatically controls the on/off of each relay by detecting the type of the connected electric device, so as to realize that the battery pack outputs a voltage value corresponding to the type of the electric device. With continued reference to fig. 30-ii, the powered device is a dc tool that is connected to the energy storage system via an adapter. The adapter comprises a tool end 231-II for connection to the DC tool, an electrical energy input end 233-II for connection to the output interface of the energy storage system, and a transmission line 235-II for connection between the tool end 231-II and the electrical energy input end 233-II.

As shown in fig. 31-ii-34-ii, adapters with different output voltages have different power inputs 233-ii. Fig. 31-ii-34-ii are schematic diagrams of the power output terminals of 20V, 40V, 60V, 120V adapters, each of which is seen to have a positive terminal 241-ii, a negative terminal, a trigger 245-ii, and a switch jack 247-ii. The negative terminal and switch jack 247-ii are in the same position on each power input 233-ii, while the positive terminal 241-ii and trigger 245-ii are in different positions.

The direct current output interface of the energy storage system can be compatible with each electric energy output end. As shown in FIG. 30-II, the DC output interface is provided with a negative terminal, a 20V positive terminal 253-II, a 40V positive terminal 255-II, a 60V output terminal, a 120V output terminal, a 20V sensing element, a 40V sensing element, a 60V sensing element, a 120V sensing element and a starting switch 261-II. The positions of the positive electrode ports and the induction parts correspond to the positions of the positive electrode terminals 241-II and the triggering parts 245-II on the electric energy input ends 233-II, so that when the electric energy input ends 233-II of the 20V adapter are connected to the direct current output interface, the 20V positive electrode terminals 253-II are in butt joint with the 20V positive electrode ports, the triggering parts 245-II trigger the 20V induction parts, and the like, and the description is omitted. At the same time, the dc output interface can only be connected to one power input 233-ii. In this embodiment, the triggering part 245-ii is a magnetic steel, the sensing part is a hall sensor, the magnetic steel on the specific power input end 233-ii will be close to the hall sensor at the corresponding position, so that the hall sensor will generate a signal, and after receiving the signal, the MCU will send out an instruction to control each relay to be in a proper on-off state, so as to enable the battery pack to output a voltage matched with the adapter.

The starting switch 261-II on the direct current output interface is linked with the integral power-on switch of the energy storage system. Therefore, the energy storage system is powered on when the starting switch 261-II is turned on, and the energy storage system is not powered on when the starting switch 261-II is turned off, so that power is basically not consumed. The starting switch 261-II corresponds to the switch jack post 247-II on the electric energy input end 233-II in position, when the electric energy input end 233-II is plugged into the direct current output interface, the switch jack post 247-II abuts against the starting switch 261-II to enable the starting switch 261-II to be conducted, and when the electric energy input end 233-II is pulled out of the direct current output interface, the starting switch 261-II resets and is switched off, and the energy storage system is switched off.

After the starting switch 261-II is turned on, a default standard battery unit is firstly started to supply power to a control circuit such as a controller, the control circuit judges the type of the connected adapter through the received signal of the induction element, and the on-off state of each relay is correspondingly controlled, so that the battery pack outputs a target voltage. After the on-off state of the relay is switched in place, the battery pack supplies power to the control circuit integrally.

A safety switch is arranged between the output end of the whole battery pack and the direct current output interface, and the on-off of the safety switch is controlled by a control circuit. And when detecting that the output voltage of the battery pack is consistent with the target voltage corresponding to the type of the adapter, the control circuit instructs the safety switch to be switched on, and if the output voltage of the battery pack is inconsistent with the target voltage, the control circuit controls the safety switch to be switched off. Due to the design, the problem that due to the fact that one or more relays in the series-parallel circuit are accidentally failed, the output voltage of the battery pack is inconsistent with the target voltage required by the adapter, and finally the direct-current electric equipment is prevented from being accidentally damaged and even burned is solved. In this embodiment, the safety switch is a MOS transistor. The reliability of the MOS tube switch is higher than that of the relay switch, so that the risk of output voltage error is reduced.

Also for safety, in the present embodiment, the series-parallel circuit causes the battery pack to output a voltage of 20V while the respective relays configured with the series-parallel circuit are in the normally open state. The advantage of this is that the relay usually fails to be closed rather than opened, so, in the circuit configuration of this embodiment, even if the relay fails, the voltage is too low, for example, in a 20V state, and the electric device is not damaged too much.

In the present embodiment, when the energy storage system is charged, the battery pack is configured to be in a fully parallel state through the aforementioned series-parallel circuit, that is, the rated voltage of the battery pack is 20V. Thus, the standard battery cells are connected in parallel with each other during charging, so that automatic charge balance can be realized during charging, and even if the actual voltages of the standard battery cells are not consistent, the consistent voltage can be automatically achieved during charging. This approach may be used to compensate charging for certain standard cells used when the aforementioned system is powered up.

Another embodiment of the present invention is described below with reference to fig. 35-ii, and this embodiment is substantially the same as the previous embodiment, except that two single-switch relays are used instead of one double normally-open double normally-closed relay of the previous embodiment, but the structure of the series-parallel circuit is unchanged. As shown in the figure, in the present embodiment, the series-parallel circuit includes 10 relays JQ1 to JQ10. Each relay is correspondingly provided with a driving circuit 270-II. Similar to the previous embodiment, the dc output interface of the energy storage system detects the type of the connected electric device, correspondingly determines the target voltage to be output, and further controls the on-off state of each relay, so as to obtain the target voltage, and outputs the target voltage to the electric device.

The advantage of using two single switch relays to replace a double normally open double normally closed relay is that the single switch relay has mature technology and larger maximum current, and is beneficial to large-scale purchase and production and manufacture.

Another embodiment of the present invention is described below with reference to fig. 36-ii, which is substantially the same as the embodiment corresponding to fig. 35-ii, and two single-switch relays are also used instead of one dual normally-open dual normally-closed relay, for a total of 10 relays JQ1 to JQ10, with the difference that the present embodiment provides an optical coupling element 271-ii between the two paired single-switch relays. Taking a double relay group composed of JQ1 and JQ2 as an example, an optical coupler element 271-II is arranged between the JQ1 and the JQ2, an optical emitter of the optical coupler element 271-II is arranged between a conducting pole of the JQ1 relay and a negative pole of a first standard battery unit, and an optical receiver of the optical coupler element 271-II is arranged in a driving circuit 270-II of the JQ2 relay. When the first pair of relays needs to be switched to the conducting state from the turn-off state, the controller sends a conducting instruction to the driving circuit 270-II of the JQ1, the driver drives the JQ1 to be switched to the conducting state from the turn-off state, after the JQ1 is switched to the conducting state, the light emitting electrode is triggered to be switched on and emit light, the light receiving electrode is switched on after detecting light, and then the driving circuit 270-II of the relay JQ2 is triggered to work, so that the relay JQ2 is switched to the conducting state from the turn-off state. The other pairs of relays are configured identically and are provided with the optical coupling elements 271-II, so that only when the paired first relay is conducted, the second relay is conducted subsequently. The arrangement can ensure that the second relay is not independently conducted when the first relay is failed, so that the battery is short-circuited.

In another embodiment of the present invention, the energy storage system of this embodiment also includes a plurality of standard battery cells, the voltages of the standard battery cells are equal, and one battery pack includes a plurality of standard battery cells. However, when the voltage required by the electric equipment connected with the energy storage system is equal to the voltage of the standard battery unit, the energy storage system directly uses one of the plurality of standard battery units to supply power for the electric equipment, and does not activate other standard battery units. After the electric equipment is used, the energy storage system directly uses other standard battery units to charge the used standard battery units, and the energy storage system does not need to be connected with an external power supply to charge. The charging circuit can be arranged in the battery pack and also in the body of the energy storage system. Similar to the previous embodiment, the energy storage system may configure the series-parallel circuit by detecting the type of the connected electric device and controlling the on-off state of each relay, so that only one standard battery unit is used for supplying power to the electric device. The same function can be realized by controlling the microswitch through a knob and the like, and the specific circuit connection form is not described again.

Another embodiment of the present invention is described below.

The energy storage system of this embodiment is similar to the embodiment shown in fig. 21-ii, and has a detection procedure to determine the type of the ac power device connected thereto, and selectively output dc power or ac power. In the embodiment, the ac driving circuit 270-ii includes a voltage boosting circuit. The booster circuit boosts the voltage of the battery pack, for example, 120V to 125V or 130V. In the present embodiment, the boosting circuit boosts the output voltage of the battery pack only by a small margin, for example, by a margin within 20%. The specific form of the boost circuit is well known to those skilled in the art and will not be described in detail. In this embodiment, the inverter may be a conventional DC-AC inverter that converts DC power to sine wave AC power, or a simplified H-bridge circuit that converts DC power to square wave AC power.

Another embodiment of the present invention is described below. The energy storage system of this embodiment is similar to the previous embodiment, and has a detection process to determine the type of the ac power device connected thereto, and selectively output dc power or ac power. In this embodiment, the ac driving circuit 270-ii includes a booster circuit. The difference is that the dc power output in this embodiment is a breakpoint dc power.

Similar to the embodiment in fig. 21-ii, in this embodiment, when the AC appliance is powered, the detection unit of the AC driving circuit 270-ii detects the load or power of the electric device, and when the power of the AC appliance is smaller than a first preset threshold, for example, 200W, the AC driving circuit 270-ii powers the AC appliance through the DC-AC inverter, which converts the DC input into a sine wave AC output, and further, the boost circuit is activated when outputting the AC power, so that the final output AC voltage is larger than the DC voltage output by the battery pack. The boost circuit is optionally located at the front end or the back end of the DC-AC inverter. When the voltage boosting circuit is positioned at the front end of the DC-AC inverter, the voltage boosting circuit is a direct current voltage boosting circuit and transmits the direct current voltage of the battery pack to the DC-AC inverter after being boosted. When the voltage boosting circuit is positioned at the rear end of the DC-AC inverter, the voltage boosting circuit is an alternating current voltage boosting circuit and transmits alternating current voltage output by the DC-AC inverter to the output interface after boosting. In this embodiment, the detection of the load is realized by detecting the current value, and the specific detection mode is the same as that described above and is not repeated.

When the power of the ac appliance is greater than the first preset threshold and less than the second preset threshold, for example, greater than 200W and less than 2000W, the ac driving circuit 270-ii provides the ac appliance with the interrupted dc power, i.e., the dc power with the current direction unchanged but periodically interrupted for a predetermined time, in the form shown in fig. 37-ii. The direct current can avoid the arc discharge phenomenon of some switching devices due to continuous accumulation of current.

When the power of the ac appliance is greater than the second predetermined threshold, the ac driver circuit 270-ii is interrupted.

Before the direct current is continued, the energy storage system can judge whether the alternating current electric equipment is suitable for working under the direct current. In addition to the determination algorithm in the embodiment shown in fig. 21-ii, the present embodiment also detects whether the control power of the ac appliance has been stepped down by the transformer. Generally, an electrical appliance with a control function is provided with a detection loop, detects a certain parameter value or certain parameter values, and is started when the parameter value meets a preset condition. For example, a refrigerator has a circuit for detecting temperature, and the compressor is started to perform cooling only when the temperature is higher than a certain threshold value, rather than being directly started after being powered on. For these appliances, the processing logic of the present embodiment is as follows:

in the first case, if the consumer is in operation and the main consumer is directly started, the DC-AC inverter first supplies the device with power and detects the current value I1 after a certain time. The output power of the DC-AC inverter is not enough to support the operation of the electric equipment, and the I1 value is large and represents that the load is more than 200W. In response, the output of the energy storage device is then switched to direct current and the current value I2 is detected after a certain time. In this case, the value of I2 is smaller than the value of I1, because the primary side of the transformer for controlling the power supply is short-circuited after the dc current is applied, and the actual value of I2 is small because the internal resistance of the primary side of the transformer is large. In summary, if I1 is much larger than I2, or the output power of the energy storage system exceeds the rated power of the DC-AC inverter during AC output, and the power is rather greatly reduced or even smaller than the rated power of the DC-AC inverter during DC output, it means that the power consumption device includes a transformer for controlling the power supply, and the energy storage device stops outputting electric energy.

In another case, if the electric device is in a standby state, the DC-AC inverter can support the electric device to be in a standby state at the beginning, the I1 value is small, and the energy storage system continuously outputs the alternating current. After a certain time, detecting that the parameter value reaches a preset condition, switching the electric equipment to a working state, starting the main electric consumption device, and then processing the main electric consumption device in the same way as the first condition.

Another embodiment of the present invention is described below.

In this embodiment, the energy storage system is capable of supplying power to an ac power grid, typically providing domestic emergency power for a household in the event of a power outage. Specifically, the energy storage system has an adapter for interfacing with an ac power grid, the adapter including an input, a transmission line 235-ii and an output, the input being compatible with an ac output interface of the energy storage system and the output being compatible with a socket of the ac power grid. When the alternating current output interface of the energy storage system is also a standard alternating current socket, the input end and the output end of the adapter are both male alternating current plugs.

Therefore, when power is cut off, the adapter is used for connecting the energy storage system with one socket in the power grid, alternating current electric energy output by the energy storage system is transmitted to other sockets in the indoor power grid from the socket in the power grid through the adapter, and the other sockets are electrified and can be normally used to maintain normal indoor power supply.

In an embodiment of the invention, the energy storage system includes the battery pack and the base, and the projector is integrated on the base. The battery pack is composed of 1 or more battery packs with a total voltage of 120V (namely, one battery pack is internally provided with 6 standard battery units with 20V), or 2 or more battery packs with a total voltage of 60V (namely, one battery pack is internally provided with 3 standard battery units with 20V).

In an embodiment of the invention, the energy storage system includes the battery pack and the base, and the base is integrated with a radio. The battery pack is composed of 1 or more battery packs with a total voltage of 120V (namely, one battery pack is internally provided with 6 standard battery units with 20V), or 2 or more battery packs with a total voltage of 60V (namely, one battery pack is internally provided with 3 standard battery units with 20V).

In an embodiment of the present invention, the energy storage system includes a battery pack and a backpack, wherein the battery pack has the aforesaid plurality of standard battery cells; the backpack comprises only one configuration of series-parallel circuits and an output interface outputting one dc voltage. Typically, the battery pack includes 1 or more battery packs with a total voltage of 120V (i.e. one battery pack contains 6 standard battery cells with 20V), or 2 or more battery packs with a total voltage of 60V (i.e. one battery pack contains 3 standard battery cells with 20V). The series-parallel circuit of the backpack configures a plurality of standard battery cells to form an output voltage of 120V. So as to supply power to a 120V direct current tool or a tool compatible with alternating current and direct current input. The dc tools and tools described herein include, but are not limited to, various hand or hand-propelled power tools, garden tools, bench-top tools, and the like.

In an embodiment of the present invention, the energy storage system includes a battery pack and a backpack, wherein the battery pack has the aforesaid plurality of standard battery cells; the backpack only comprises a series-parallel circuit and a direct current output interface. The series-parallel circuit can be selected to have various series-parallel forms, so that the battery pack consisting of the standard battery units can selectively output various direct-current voltages. The foregoing embodiments of series-parallel circuit implementations have been described in detail and are not repeated.

Typically, the battery pack includes 1 or more battery packs with a total voltage of 120V (i.e., one battery pack contains 6 standard battery cells of 20V), or 2 or more battery packs with a total voltage of 60V (i.e., one battery pack contains 3 standard battery cells of 20V). The series-parallel circuit of the backpack configures a plurality of standard battery cells to form output voltages of 20V, 40V, and 120V to power various types of tools having input interfaces of 20V, 40V, and 120V. The tool type is the same as in the previous embodiment.

In an embodiment of the present invention, the energy storage system includes a battery pack and a base, wherein the battery pack is provided with the plurality of standard battery units; the base includes one of the AC drive circuits 270-ii described in the previous embodiments. Thus, the output interface on the base includes an AC output interface capable of outputting 120V AC power. The AC power may be one or more of sine wave AC power or square wave or trapezoidal wave AC power. In certain variations, the ac output interface is capable of outputting dc power at 120V or higher. In some variations, the base further includes a dc output interface outputting 12V power, USB5V power, 20V, 40V, 60V, 120V power, etc., in a manner similar to the foregoing embodiments.

Finally, embodiments guided by the third inventive concept will be described with reference to FIGS. 1-III to 20-III.

Fig. 1-iii are block diagrams illustrating the first embodiment of the present invention in an overall view under the guidance of a third inventive concept. As shown in fig. 1-iii, the present embodiment provides a power supply system 100-iii. The power supply system 100-iii can output dc power and ac power to the outside and can be carried by a user.

The power supply system 100-III comprises an energy storage component 3-III consisting of a plurality of battery packs 5-III, a power supply platform 1-III and a plurality of adapters 30-III. The battery pack 5-iii includes a housing, standard battery cells 51-iii located in the housing, and a battery pack output interface located on the housing. The number of the battery packs 5-iii is one or more.

The power supply platform 1-III includes a body 13-III, a battery pack support device 15-III located on the body 13-III, a battery pack access interface 17-III located on the battery pack support device 15-III, a control circuit 20-III located in the body, and a power output interface connected to the control circuit 20-III. The electric energy output interface comprises a direct current output interface 9-III and an alternating current output interface 11-III. The adapter 30-iii comprises an input 31-iii, a transmission line 35-iii and an output 37-iii. The input 31-iii is adapted to mate with the dc output interface 9-iii, the output 37-iii is adapted to mate with the dc consumer 200-iii, and the transmission line 35-iii is connected between the input 35 and the output 37-iii. The number of adapters 30-iii is one or more. When the adapters 30-iii are plural, the output terminals 37-iii of at least two adapters 30-iii are different from each other so as to be adapted to different dc electric devices 200-iii.

The AC output interface 11-iii is a standard AC outlet that can be plugged directly into an AC plug to provide AC power to the AC powered device 300-iii. In this embodiment, the standard AC outlet is a american standard, but in alternative embodiments, the standard AC outlet may be a standard in other regions.

The distance between the direct current output interface 9-III and the alternating current output interface 11-III is less than 15CM.

The energy storage components 3-iii and the battery packs 5-iii of the present embodiment are described below with reference to fig. 2-iii and 3-iii.

As shown in fig. 2-iii, several battery packs 5-iii constitute energy storage components 3-iii of the power supply system 100-iii, the internal framework of the energy storage components 3-iii being described in detail below. The 3 pieces of energy storage portion include one-level energy storage module, one-level energy storage module includes a plurality of second grade energy storage module, and second grade energy storage module includes a plurality of third grade energy storage module.

The primary energy storage module is a battery pack 5-III, and the battery pack 5-III is provided with an independent shell, a control circuit positioned in the shell and a battery pack output interface positioned on the shell. The battery pack output interface is provided with output terminals, and the output terminals comprise paired positive and negative electrode terminals and a plurality of signal terminals.

The secondary energy storage module is a standard battery cell 51-III disposed in the housing of the battery pack 5-III. The standard battery cells 51-III are identical to each other, uniform in specification, consistent in rated voltage, and electrically isolated from each other. The secondary energy storage module cannot be used separately from the battery pack 5-iii, but has a pair of independent positive and negative electrode output terminals that lead out to the battery pack output interface, that is, to the housing. In one embodiment, the secondary energy storage module also has an independent control circuit.

The three-stage energy storage module is a single battery and cannot be decomposed into smaller subunits with positive and negative electrodes again.

In this embodiment, the energy storage components 3-iii include a plurality of primary energy storage modules, the primary energy storage modules include a plurality of secondary energy storage modules, and the secondary energy storage modules include a plurality of tertiary energy storage modules.

Specifically, in the present embodiment, the energy storage component includes two primary energy storage modules, that is, two battery packs 5 to iii. Referring to fig. 3-iii, the specific structure of one of the battery packs 5-iii is described in detail below.

The battery pack 5-iii includes a housing and a plurality of standard battery cells 51-iii in the housing. Each of the standard cells 51-iii is identical to, electrically isolated from, each other, and has independent positive and negative electrodes 19-iii. The battery pack 5-iii includes 6 standard battery cells 51-iii, each of the standard battery cells 51-iii includes 5 unit cells, and the unit cells are connected in series with each other. Wherein, the single battery is a lithium battery with the rated voltage of 4V. That is, the rated voltage of each standard battery cell 51-iii is 20V, and the sum of the rated voltages of the respective standard battery cells 51-iii in the battery packs 5-iii is 120V, which is substantially equivalent to the ac standard voltage in the united states.

The positive and negative electrodes 19-iii of the standard battery cells 51-iii are both directly led out to the battery pack output interface on the casing of the battery pack 5-iii, i.e. the battery pack output interface comprises a plurality of pairs of positive and negative electrodes, specifically 6 pairs in this embodiment.

The battery pack output interface also comprises signal electrodes 21-III. The signal electrodes 21-III comprise temperature electrodes, the temperature electrodes are connected to temperature measuring structures inside the battery packs 5-III, and temperature information of the battery packs detected by the temperature measuring structures is sent to the outside. The temperature electrodes include a pair, a T pole, and a GND pole connected to ground. The signal electrode comprises a voltage electrode BH, the voltage electrode BH is connected to a voltage detection unit 231-III in the battery pack 5-III, and the voltage information of the battery pack detected by the voltage detection unit 231-III is sent to the outside. Specifically, the voltage detection unit includes 6 voltage detection elements, which are in one-to-one correspondence with the 6 standard battery cells 51-iii to detect the voltages of the respective standard battery cells 51-iii. The voltage detection units 231-iii further include a detection circuit that aggregates detection data of the 6 voltage detection elements, and when the detection data of any one of the voltage detection elements is abnormal, sends a signal of the abnormal voltage of the battery pack to the outside through the voltage electrode BH. The signal electrode further comprises a type recognition electrode BS, the type recognition electrode BS is connected with an identification element for indicating the type of the battery pack, specifically a recognition resistor with a specific resistance value, the power supply platform 1-III determines the type of the battery pack 5-III by detecting the type of the identification element connected with the type recognition electrode BS, and the power supply platform 1-III can also determine whether the specific battery pack access interface 17-III is connected with the battery pack or not by the type recognition electrode.

In summary, the output interface of the battery pack comprises a plurality of pairs of positive and negative electrodes 19-III and a plurality of signal electrodes 21-III. There are 6 pairs of positive and negative electrodes 19-III, each pair being connected to a corresponding standard cell 51-III. The signal electrodes 21-III include temperature electrodes T and GND, voltage electrodes BH, and type recognition electrodes BS.

In order to improve the heat dissipation capability, in this embodiment, the battery pack 5-iii is in a flat long strip shape, and the length thereof is much longer than the width and the thickness, for example, the length is more than 3 times of the width and the thickness, so that the surface area of the battery pack 5-iii can be increased, and the heat dissipation efficiency can be improved.

In order to improve the heat dissipation capability, in the present embodiment, a heat dissipation mechanism, such as a phase change heat dissipation material, or a fan, etc., is disposed in the battery pack 5-iii.

In this embodiment, there are two primary energy storage modules. In an alternative embodiment, however, the energy storage components 3-iii comprise only one primary energy storage module.

In this embodiment, the at least one primary energy storage module includes a plurality of secondary energy storage modules. In an alternative, however, each primary energy storage module comprises only one secondary energy storage module.

In this embodiment, the secondary energy storage module includes a plurality of tertiary energy storage modules.

In this embodiment, the rated voltage of the secondary energy storage modules, that is, the standard battery units, is a divisor of 120V of the standard ac voltage in the U.S. region, so that the sum of the rated voltages of a plurality of secondary energy storage modules can be exactly equal to the standard ac voltage in the U.S. region, for example, the sum of the rated voltages of 6 secondary energy storage modules in this embodiment is 120V. Under the concept, the rated voltage of the secondary energy storage module can be 10V,40V or 60V. Similarly, the rated voltage of the secondary energy storage module may also be a divisor of the ac standard voltage in other regions, such as a divisor of the ac standard voltage 220V in china, a divisor of the ac standard voltage 230V in uk, a divisor of the ac standard voltage 110V in some other regions, and so on, which are not described in detail herein.

By providing the standard secondary energy storage module and configuring the series-parallel connection relation of the secondary energy storage modules in the power supply system to realize multi-voltage output, the embodiment does not need to use a DC-DC voltage converter when supplying power externally, thereby reducing the cost and improving the energy utilization efficiency.

The power supply platform of the present embodiment is described below with reference to fig. 4-iii.

The power supply system 100-iii of the present embodiment can be used as a power source for dc or ac power tools such as power saws, lawn mowers, etc., and together with the power source, forms a working system. For this purpose, the power supply platforms 1-iii are designed as wearable devices with wearing parts, such as straps, belts, etc. In this way, the user can carry the power supply platforms 1-III with him or her, while both hands are free to move for operating the power tool. Specifically, the power supply platforms 1-iii of the present embodiment are backpacks, and the wearing members include straps.

The power supply platform 1-III comprises a body 13-III, a battery pack supporting device 15-III located on the body 13-III, wearing equipment located on the body 13-III, a battery pack access interface 17-III, a control circuit 20-III, an electric energy output interface and a plurality of peripheral equipment.

The battery pack support means 15-iii, to which the battery pack is detachably mounted, has two battery pack support positions in this embodiment 15-iii, to which one of the aforementioned battery packs 5-iii is mounted, respectively.

In order to keep the center of gravity of the backpack close to the human body and improve user comfort, the battery pack 5-III has its longitudinal axis substantially parallel to the back of the user when mounted on the battery pack support means 15-III, i.e., the longitudinal axis of the battery pack 5-III is substantially parallel to the back panel of the backpack. More specifically, two battery packs are tiled rather than stacked on the back plate.

The battery pack access ports 17-iii are located on the battery pack support means 15-iii for mating with the battery pack output ports of the battery packs 5-iii so that the number is the same as the number of battery pack support locations, i.e., one battery pack access port 17-iii is provided for each battery pack mounting location. The electrodes on the battery pack access interface 17-III are matched with the electrodes on the battery pack output interface, and also comprise a plurality of pairs of positive and negative electrodes and a plurality of signal electrodes. Specifically, the battery pack access interface in this embodiment has 6 pairs of positive and negative electrodes, a pair of temperature measuring electrodes, a pressure measuring electrode, and a type identifying electrode.

The battery pack access interface 17-iii is connected to the circuitry 20 of the power supply platforms 1-iii. The control circuit 20-III includes an interface circuit 25-III, a body circuit 23-III, and an AC drive circuit 27-III.

The body circuit 23-III includes a battery pack detection circuit, and the AC drive circuit 27-III includes a battery pack protection circuit. The battery pack detection circuit detects battery pack information and sends the battery pack information to the battery pack protection circuit, and the battery pack protection circuit sends a corresponding control instruction according to the battery pack information. The battery pack detection circuit comprises at least one of a temperature detection component, a current detection component and a voltage detection component; the battery pack protection circuit is internally provided with a preset condition, and when the received temperature information, or the received current information, or the received voltage information does not accord with the preset condition, a control instruction for stopping the battery pack or a control instruction for enabling the power supply system to externally send a warning signal is sent out.

As mentioned above, since the power supply platforms 1-iii are backpacks, in order to avoid damage to the circuit structure by external impact, in the present embodiment, the control circuit 20-iii is at least partially covered by a hard protective shell. Because the control circuit 20-III is split, the body circuit 23-III (including the battery pack detection circuit) and the alternating current drive circuit 27-III (including the battery pack protection circuit) are located at different positions, and the number of the protection shells is two, so that the body circuit and the alternating current drive circuit are respectively protected.

The interface circuit 25-III is connected with each electrode on the battery pack access interface 17-III, and is configured in a preset mode and then is switched to other parts.

In this embodiment, the interface circuit 25-III selectively connects a plurality of pairs of positive and negative electrodes on the battery pack access interface 17-III to one of the DC output interface 9-III and the AC drive circuit 11. Specifically, the interface circuit 25-iii configures a plurality of pairs of positive and negative electrodes in a preset series-parallel relationship, and connects to one of the dc output interface 9-iii and the ac driving circuit 11. When connected to the dc output interface + and the ac drive circuit 11, the series-parallel relationship may be the same or different, and is the same in this embodiment.

More specifically, the interface circuit 25-III connects every two pairs of positive and negative electrodes in parallel to a pair of positive and negative electrode leads to form 6 pairs of positive and negative electrode leads to be outputted to preset positions of the control circuit 20-III. Two pairs of positive and negative electrodes connected in parallel with each other are respectively located at different battery pack access interfaces 17-iii. That is, the interface circuit 25-iii connects each pair of positive and negative electrodes on one battery pack access interface 17-iii in parallel with a corresponding pair of positive and negative electrodes on the other battery pack interface to form 6 pairs of positive and negative electrode leads.

After the multiple pairs of positive and negative electrode leads are switched to other parts, the multiple pairs of positive and negative electrode leads are finally subjected to series-parallel configuration through a preset series-parallel circuit, so that the preset rated voltage is achieved. The series-parallel circuit may be located in the adapter 30-iii, the ac drive circuit 27-iii, or other components.

Interface circuit 25-iii connects the signal electrode to body circuit 23-iii, which body circuit 23-iii thereby receives information about battery pack 5-iii. The body circuit 23-III determines whether the battery pack 5-III is connected to each battery pack access interface 17-III and the type of the connected battery pack according to the information sent by the type identification electrode; determining the temperature of the accessed battery pack through the information sent by the temperature electrode T; the information sent by the voltage electrode BH determines the voltage information of the accessed battery pack, specifically, whether there is a voltage abnormality of the standard battery cell 51-iii, such as an undervoltage or an overvoltage.

The body circuit 23-iii includes a microprocessor and its peripheral circuits. The main body circuit 23-III controls the operation of peripheral devices in the control circuit based on the received information, or transmits the relevant information to other parts. The peripheral equipment comprises a heat dissipation device, in this embodiment, a fan; the system further comprises an interactive interface, wherein the interactive interface comprises an electric quantity display lamp and an alarm. In order to clearly remind the user, in the embodiment, the interactive interface is located at a position easily found by the user, such as the harness.

The body circuit 23-III controls the fan to operate according to the temperature information, for example, the rotating speed of the fan is correspondingly adjusted according to the temperature; and if the temperature is higher than the preset value, an alarm is given.

The body circuit 23-III judges the battery power according to the voltage information and correspondingly controls the power display lamp to indicate the battery power. The body circuit 23-iii also alarms when the battery voltage is too low or too high. The body circuit 23-iii further includes a communication module including at least a signal receiving pole and a signal transmitting pole, the communication module communicating with other circuit portions, such as the ac drive circuit 27-iii and the dc drive circuit in the adaptor 30-iii described later. The body circuit 23-III transmits the battery pack information to other circuit parts through the communication module and receives the transmitted related information or instructions.

The body circuit 23-iii also includes a power supply portion that supplies electrical power in a suitable form to the respective components, including input positive and negative electrodes, a voltage converter and associated circuitry. In the embodiment, the input positive and negative electrodes are selectively connected to one of the DC output interface 9-III and the AC drive circuit 27-III, and a DC power supply is connected from the one of the input positive and negative electrodes; the voltage converter includes a DC/DC converter for converting the received 12V DC power to 5V DC power to be supplied to the microprocessor, and the power supply part also supplies the received 12V DC power to the fan.

The dc output interfaces 9-iii and the adapters 30-iii coupled to the dc output interfaces 9-iii are described below.

As shown in fig. 6-iii, the dc output interface includes a plurality of pairs of output positive and negative electrodes 19 a-iii, a plurality of signal electrodes 21 a-iii, and a pair of input positive and negative electrodes 191 a-iii.

The output positive and negative electrodes 19 a-III are connected to the aforementioned interface circuits 25-III, and each pair of positive and negative electrode leads is connected to a pair of output positive and negative electrodes 19 a-III. In this way, the positive and negative electrodes 19-III on the standard battery cells 51-III of the battery packs 5-III are directly led out to the DC output interfaces 9-III through the interface circuits 25-III, in this embodiment, the DC output interfaces 9-III include 6 pairs of positive and negative electrodes 19 a-III, and the rated output voltage of each pair of positive and negative electrodes 19 a-III is 20V. The signal electrodes 21 a-iii are connected to the communication module of the body circuit 23-iii, and specifically include a signal output electrode and a signal input electrode. Input positive and negative electrodes 191 a-iii are connected to the input positive and negative electrodes of the power supply portion of the aforementioned body circuit 23-iii for receiving electric power input from the adapter 30-iii to supply power to the body circuit 23-iii and peripheral devices of the power supply platform 1-iii.

As shown in fig. 7-iii, adapter 30-iii includes an input terminal 31-iii, an output terminal 37-iii, and a transmission line 35-iii between input terminal 31-iii and output terminal 37-iii. Input end 31-III is provided with input interface 33-III, and output end 37-III is provided with output interface 39-III. The dc drive circuit of the adapter 30-iii includes a series-parallel circuit and a discharge protection circuit.

As shown in fig. 8-iii, the electrode arrangement of the input interface 33-iii is matched with the dc output interface 9-iii, including a plurality of pairs of input positive and negative electrodes 19-iiib, paired with the output positive and negative electrodes 19 a-iii of the dc output interface one by one; the signal electrodes 21 b-III are matched with the signal electrodes 21 a-III of the direct current output interfaces 9-III one by one; and a pair of output positive and negative electrodes 191 b-iii paired with input positive and negative electrodes 191 a-iii of the dc output interface 9-iii. Specifically, the signal electrodes 21 b-III comprise a signal output electrode, which is paired with a signal input electrode of the direct current output interface 9-III; a signal input electrode, and a signal output electrode of the DC output interface 9-III.

In this embodiment, the input end of the adapter 30-III is substantially cylindrical and correspondingly the circuit board in the input end 31-III is also circular, the outer circumference of which matches the cross-sectional shape of the input end, the circuit board being provided with the aforementioned series-parallel circuit.

The present embodiment includes a plurality of adapters 30-III with different series-parallel circuits disposed in different adapters 30-III. Specifically, the adapters of the present embodiment include a first adapter 301-III, a second adapter 302-III, a third adapter 303-III, and a fourth adapter 304-III.

As shown in fig. 9-iii-12-iii, a series-parallel circuit is disposed in the input terminal of each adapter 30-iii, and the series-parallel circuit obtains a preset voltage output on the output positive and negative electrodes of the output terminal thereof by configuring the series-parallel relationship between each pair of input positive and negative electrodes. The serial-parallel circuit configurations of the adapters are different, so that the preset voltage outputs of the output positive and negative electrodes are different.

As shown in fig. 9-iii, the series-parallel circuit 43 a-iii of the first adapter 301-iii connects each pair of input positive and negative electrodes in parallel, which is equivalent to connecting all of the standard cells 51-iii in parallel, thereby obtaining a voltage output of 20V; as shown in fig. 10-iii, the series-parallel circuit 43 b-iii of the second adapter 302-iii connects each two pairs of input positive and negative electrodes in series, and connects 3 groups of 40V cells obtained by the series connection in parallel with each other, thereby obtaining a voltage output of 40V; as shown in fig. 11-iii, the series-parallel circuit 43 c-iii of the third adapter 303-iii connects every 3 pairs of input positive and negative electrodes in series, and 2 sets of 60V cells connected in series are connected in parallel with each other, thereby obtaining a voltage output of 60V; as shown in fig. 12-iii, the series-parallel circuit 43 d-iii of the fourth adapter 304-iii connects 6 pairs of input positive and negative electrodes in series, which is equivalent to connecting all the standard battery cells 51-iii in parallel in a set of two and then connecting all the standard battery cells in series, thereby obtaining a voltage output of 120V.

In the present embodiment, the series-parallel configuration of the interface circuits 25-iii up to the dc output interfaces 9-iii is fixed, but the adapters 30-iii are of various types, and the series-parallel circuits built in each other are different from each other. That is, the present embodiment realizes voltage conversion by connecting the adaptors 30-iii having different series-parallel circuits without arranging a series-parallel circuit having a plurality of electronic switches, the series-parallel manner of the circuit being changed by on-off variation of the electronic switches. The advantages of this embodiment are: the cost is lower because an electronic switch is not arranged; the difficulty of circuit design and logic control is lower, and the system is more stable. Meanwhile, due to the fact that the types of the direct current electric equipment are various, adapters need to be provided for the direct current electric equipment, and the influence of the addition of a part of series-parallel lines in the adapters 30-III on the cost is very little.

In this embodiment, instead of using a DC-DC transformer to transform the voltage to the operating voltage required by the DC consumers 200-iii, voltage conversion is achieved by building a plurality of standard battery cells 51-iii into the battery packs 5-iii and then by a series-parallel configuration between the standard battery cells 51-iii. The approach of this embodiment has several advantages. Firstly, the cost of the series circuit is far lower than that of a transformer; secondly, various voltages can be conveniently obtained through different series-parallel circuits, and a complex multi-voltage transformation structure does not need to be arranged. Third, the user may purchase different adapters 30-III for different tools without the user having to pay for the voltage output that he or she does not need.

In this embodiment, 20V is selected as the nominal voltage of the standard battery cell 51-III and 6 sets of positive and negative electrode output leads are selectively connected to the DC output interface 9-III and the AC drive circuit 27-III. Such parameter setting has the advantage of wide output voltage application range. For an alternating current scene, 6 groups of 20V units are connected in series to obtain a 120V direct current voltage which is basically equal to the American alternating current standard voltage, so that a voltage transformation circuit is omitted from an alternating current driving circuit, and the cost is greatly reduced. For a direct current scene, 6 groups of 20V units can obtain 20V,40V,60V and 120V voltage outputs through proper series-parallel connection configuration, the voltage outputs basically cover the common input voltage of the electric tool, a voltage transformation circuit can be omitted, and the direct current power supply circuit can be simply and inexpensively adapted to various electric tools and multiple manufacturers. Meanwhile, the loss of electric energy in the conversion process can be reduced by omitting a voltage transformation circuit, so that the working time of the battery pack is longer.

It is easy to think that if the power supply system is applied to the area with 220V-240V AC standard voltage, it is only necessary to increase the number of the positive and negative electrode leads of the 20V unit to 11 pairs or 12 pairs in the AC driving circuit.

The input 31-iii of the adapter is connected to the transmission line 35-iii. The transmission line 34 includes input positive and negative electrode leads, output positive and negative electrode leads, and signal leads; and the output positive and negative electrodes of the series-parallel circuit, the output positive and negative electrodes of the input end and the signal electrode are respectively connected. The various leads are input to the output of adapters 30-iii.

The output terminal 37-III includes a discharge protection circuit 41-III. The discharge protection circuit 41-iii includes a control unit, a current detection unit, a voltage conversion unit, a start switch, and the like. The control unit comprises a microprocessor.

The discharge protection circuit comprises at least one of a battery pack overcurrent protection circuit, an undervoltage protection circuit and an overtemperature protection circuit. The arrangement of the battery pack protection circuit in the adapter 30-iii instead of in the power supply platform 1-iii has certain advantages, for example, although the same energy storage component 3-iii is connected to each adapter 30-iii, also in two battery packs 5-iii, the required protection current, undervoltage value, etc. are different due to the different series-parallel connection and the final output voltage, but these output parameters are determined in each adapter 30-iii, so that the battery packs can be protected more specifically in the adapter 30-iii.

The current detection unit and the voltage detection unit respectively detect the working voltage and the current of the battery pack and send detection results to the control unit, and the main control unit receives and processes the detection results according to a preset algorithm. For example, the signal electrode sends a corresponding signal to the power supply platform, and the main control unit in the power supply platform makes a preset response, such as alarming, displaying electric quantity and the like, after receiving the signal. Or the control unit turns off the power supply system when the voltage is too low or the current is too large.

The voltage conversion unit converts the voltage of the input positive and negative electrodes to a preset voltage value, provides the voltage to the control circuit of the adapter 30-III as a power supply, and transmits the voltage to the power supply platform through the output positive and negative electrodes, and provides the voltage to the control circuit of the adapter as the power supply.

In the present embodiment, the voltage conversion unit includes two voltage conversion elements, the first voltage conversion element converting the voltage of the input positive and negative electrodes to 12V to be supplied to the output positive and negative electrodes; the second voltage conversion unit further reduces the 12V voltage obtained by the previous conversion to 5V and provides the 12V voltage to the control unit as a power supply.

The starting switch is positioned in the discharge protection circuit 41-III and is used for switching the adapter 30-III and the whole power supply system 100-III, and when the starting switch is closed, the discharge protection circuit 41-III and the power supply system 100-III are started to start working and supply power to the outside; when the power supply system is turned on, the discharge protection circuit 41-III and the power supply system 100-III are turned off, and no power is supplied to the outside.

The output end 37-III further comprises an output interface 39-III, and the output interface 39-III is provided with a positive output electrode and a negative output electrode. The output interface is coupled to the dc powered device 200-iii to supply power thereto.

In this embodiment, the output terminals 37-III of the adapters 30-III are coupled to the power tool using a battery pack instead of a primary battery pack. The interface of the output 37-iii is thus matched to the interface of its power tool and can be connected thereto for supplying power to the power tool. In this embodiment, the physical insertion and locking structure of the output end of the adapter and the arrangement positions of the positive electrode and the negative electrode are the same as those of the primary battery pack, however, it should be noted that the interface matched with the interface of the electric tool does not necessarily make the interface of the output end of the adapter completely consistent with that of the primary battery pack, and the output end of the adapter only needs to be capable of being connected with the interface of the battery pack of the electric tool.

In this embodiment, the output 37-iii of the adapter 30-iii is provided with a trigger mechanism, which is connected to the aforementioned start switch, and when the power tool is connected to the output interface 39-iii of the adapter 30-iii, the trigger mechanism is triggered, which causes the start switch to open, and the discharge protection circuit 41-iii of the adapter 30-iii to open, which causes the power supply system to supply power to the power tool. When the power tool is disconnected from the output port 39-iii of the adapter 30-iii, the trigger mechanism is triggered again, turning off the start switch, turning off the discharge protection circuit 41-iii of the adapter 30-iii, and turning off the power supply system 100-iii.

Specifically, the trigger switch is a microswitch and is arranged at a preset position of an interface of the output end 37-III, and the preset position can be abutted and triggered by a corresponding part of a battery pack interface of the electric tool when the output end is installed, so that a starting switch linked with the preset position is turned on; when the electric tool is disengaged, the corresponding component is separated from the microswitch, the microswitch is released, and the starting switch linked with the microswitch is closed.

The power supply system 100-III supplies power by using the battery pack 5-III, the energy is limited, if the adapter 30-III and the control circuit 20-III on the power supply platform 1-III continuously stand by to consume power, the energy of the battery pack 5-III is slowly exhausted, so that firstly, energy is wasted, and secondly, a user does not have power and can use the power when needing to use the power, and the work of the user is influenced. However, if the power supply system 100-iii, such as the adapter 30-iii or the power supply platform 1-iii, is configured with a start button and other components according to the conventional thinking, the user needs to start the switch of the power supply system 100-iii and the switch of the power tool every time the user works, the switch needs to be turned off every time the user runs out, the operation is troublesome, and the user may forget to turn off the switch occasionally, and the power of the battery pack 5-iii is still exhausted. In the embodiment, the linkage arrangement of the trigger mechanism and the starting switch brings a good energy-saving effect to the power supply system, and provides convenience for the user in operation, so that the power supply system is started when the electric tool is connected with the adapter, and the power supply system is closed when the electric tool is separated from the adapter under the condition that the operation steps are not increased.

In some cases, the user will not pull the adapter 30-III from the power tool after the power tool has been used, for example, the user may be prepared to use the tool after a certain period of time or simply forget to pull the adapter. The power supply system 100-iii is still on and slowly drains its power.

In order to avoid this, the circuit of the output 37-iii of the adapter 30-iii further comprises a load detection unit for detecting the load condition of the power supply system 100-iii, and if the load condition meets a preset condition, the discharge protection circuit 41-iii shuts down the power supply system 100-iii. The preset condition may be that the load is lower than a preset value, or that the load is lower than the preset value for a preset time. The load detection unit may be an independent component, or the load detection may be realized by the current detection unit and the voltage detection unit.

As described above, the discharge protection circuit 41-iii is automatically turned off in some cases, such as when the system is in a low power consumption state for a long time or when the battery pack 5-iii is overcurrent. It is cumbersome for the user to re-unplug and plug the output 37-iii of the adapter 30-iii to restart the power supply system 100-iii. Therefore, in the embodiment, the adaptor 30-iii is provided with a restart switch for manual operation by a user, and when the user presses the restart switch, the start switch in the adaptor 30-iii is triggered to be closed, so that the power supply system 100-iii is restarted. The reset switch may be configured to be linked with the aforementioned micro switch, to reset the power supply system 100-iii by triggering the micro switch, or may be configured to be directly linked with the aforementioned start switch. When the restart switch is linked with the microswitch, the restart switch is arranged at the position, close to the output interface, on the output end so as to trigger the microswitch.

The overall operation of the power supply system 100-iii when connected to the dc consumer 200-iii is described below.

Taking the example of a power supply platform 1-iii having a battery pack mounted thereon and connected to a first adapter 301-iii, the first adapter 301-iii has a nominal output voltage of 20V.

When the adapter 30-III is not connected to the power tool, the power supply platform 1-III is open to power failure and does not lose power. One battery pack interface 17 of the power supply platforms 1-III is connected with the battery packs 5-III, and the other interface is vacant. The series-parallel circuit in the interface circuit 25-III, the adapter 30-III configures the plurality of standard battery cells 51-III of the battery pack 5-III to be connected in parallel with each other, forming a rated output voltage of 20V at the output terminal of the adapter 30-III. Meanwhile, the respective signal electrodes of the battery packs 5-III are connected to the body circuits 23-III of the power supply platforms 1-III, and the body circuits 23-III of the power supply platforms 1-III and the DC drive circuits of the adapters 30-III communicate with each other.

When the output 37-iii of the adapter 30-iii is connected to the power tool, the aforementioned micro-switch triggers and closes the activation switch in the adapter 30-iii and the power supply system 100-iii is activated. The voltage conversion unit of the discharge protection circuit converts the voltage supplied from the series-parallel circuit into an operating voltage of the control circuit or other electronic components, and supplies power to the control circuit of the power supply platforms 1 to iii and other electronic components through the voltage output terminal.

After the electric tool is started, the power supply system 100-III supplies power to the electric tool, and the body circuit 23-III in the power supply platform 1-III collects relevant information of the battery pack 5-III, such as temperature information, voltage information and the like, and transmits the information to the discharge protection circuit 10-III in the adapter 30-III. The body circuit 23-III controls the peripheral equipment to act under a preset condition according to the received signal, for example, when the temperature of the battery is higher than a certain preset value, a fan is started, and when the temperature is higher than another preset value, an alarm is given; as well as display power. The discharge protection circuit 41-iii of the adapter 30-iii sends a control command to regulate and control the power supply system 100-iii according to the information received from the body circuit 23-iii and according to a preset condition, for example, turning off the start switch to stop when the battery temperature is too high, turning off the start switch to stop when the battery power is low, and the like. Meanwhile, a voltage detection unit and a current detection unit of the discharge protection circuit 100-III detect working parameters of the power supply system 100-III, and correspondingly send signals to the body circuit 23-III under a preset condition, such as undervoltage or overcurrent, and the body circuit 23-III correspondingly controls an alarm to give an alarm; in other predetermined conditions, the discharge protection circuit 41-iii regulates itself, for example, an undervoltage or overcurrent or a power-off shutdown at low load.

After the electric tool is closed, if the adapter 30-III is removed, the micro switch is triggered to open the starting switch of the adapter 30-III, and the power supply system 100-III is closed; if the adapter 30-III is not removed, the discharging protection circuit 41-III of the adapter 30-III is powered off when the preset condition is met according to the load condition detected by the load detection unit, so as to avoid standby power consumption. If the user needs to restart the power supply system 100-III, the starting switch is closed after the restarting switch is pressed, and the power supply system 100-III is restarted.

When two battery packs 5-III are installed on the battery pack input interface 17, the interface circuit 25-III connects corresponding positive and negative electrodes of the two battery packs 5-III in parallel one by one and then leads the positive and negative electrodes out to the direct current output interfaces 9-III of the power supply platforms 1-III, the serial-parallel circuit of the adapter 30-III performs serial-parallel configuration in the same way, the working mode of the power supply system 100-III is basically consistent with that of one battery pack 5-III when being installed, but part of control logic changes, for example, the upper limit value of current in an overcurrent protection condition becomes large. Because the double-pack operation is equivalent to doubling the number of standard cells connected in parallel to the circuit, the upper limit of the operating current of the power supply system 100-iii can be doubled when the upper limit of the current of each standard cell is unchanged. Therefore, the upper limit value of the current protection can be appropriately raised.

The ac drive circuit of the present embodiment is described below with reference to fig. 13 to iii.

The power supply system 100-iii of the present embodiment has better portability by using the battery pack 5-iii as a dc power source, and can be carried by a user to various occasions without power supply, such as picnic, outdoor work, etc.

However, many electric devices are AC electric devices 300-iii, such as various chargers, microwave ovens, AC power tools, etc., and the conventional DC power supply devices cannot supply power to these AC electric devices 300-iii, mainly because if the power supply system 100-iii is to provide AC power output, an inverter needs to be provided for DC-AC conversion, which has two main drawbacks, i.e., 1, the power loss during the conversion process is large, usually above 25%, and considering the limited storage capacity of the DC power sources such as the battery packs 5-iii, etc., the loss at this level will result in a greatly shortened operation time, which affects the usability of the product. 2. The inverter has high cost, large volume and heavy weight, and the cost, the volume and the weight of the inverter can be increased along with the increase of the rated output power of the inverter, so that the electric energy supply device is expensive and heavy, and the purchase desire and the use desire of customers are reduced. If direct current is supplied to the ac powered device, the potential hazards described above are present. In order to solve the above problem, the present embodiment adopts the following scheme.

The alternating current driving circuits 27-III include series-parallel circuits 43 e-III, a DC-AC inverter unit, a detection unit and a main control unit.

The series-parallel circuits 43 e-iii are connected to the pairs of positive and negative electrode leads of the aforementioned interface circuits 25-iii, connected in series with each other to form a preset rated voltage, and transmitted to the DC-AC inverter unit. The DC-AC inversion unit only converts the input direct current voltage into alternating current voltage and does not participate in transformation. The DC-AC inversion unit supplies the converted alternating voltage to the alternating current output interface.

The maximum output power of the DC-AC inverter is 2500W or 3000W, the power can cover most household appliances or electric tools, and meanwhile, the battery pack can work for a sufficient time without being exhausted too fast.

In the embodiment, the series-parallel circuit connects the connected 6 positive and negative electrode leads in series to form a rated output voltage of 120V, so that an additional voltage transformation device is not needed, and the cost and the energy loss are reduced.

In this embodiment, the DC-AC inverter unit does not convert the direct current into a sine wave alternating current, but converts the direct current into a square wave or trapezoidal wave alternating current. The DC-AC inversion unit is an H-bridge inverter and comprises an H-bridge driver and an H-bridge circuit, wherein the H-bridge driver converts direct current into square wave alternating current with invariable voltage by controlling the H-bridge circuit. Due to actual circuit conditions, the waveform of the square wave alternating current may not be standard, but is a trapezoidal wave alternating current. The main control unit controls the work of the DC-AC inversion unit.

In this embodiment, a zero point of a predetermined time length is provided between the positive voltage and the negative voltage of the alternating current output by the H-bridge inverter.

The DC-AC inversion unit of the embodiment has a simple structure, does not include rectification and transformation, only uses the H bridge to switch the direction of the direct current to form output square wave alternating current, and does not convert the square wave into sine wave, thereby greatly reducing the cost of direct current and alternating current conversion. The cost of the conventional inverter is up to thousands of RMB, while the DC-AC inverter unit in the embodiment only needs more than one hundred RMB.

Similar to the situation of the direct current drive circuit, the detection unit of the alternating current drive circuit comprises a current detection unit and a voltage detection unit, the current detection unit and the voltage detection unit are used for respectively detecting the working voltages and currents of the battery packs 5-III and sending the detection results to the main control unit, and the main control unit receives and processes the detection results according to a preset algorithm. The signal processing logic of the main control unit and the information interaction mode of the main control circuit are similar to the discharge protection circuit of the direct current drive circuit, and repeated description is omitted.

The voltage conversion unit also comprises a voltage conversion unit for supplying power to a PCB (printed circuit board) and the like in the power supply system. The voltage conversion unit converts the voltage accessed by the alternating current driving circuit into a preset voltage value, provides the preset voltage value for the alternating current driving circuit and the like as a power supply, and simultaneously transmits the converted voltage to the main control circuit through the output positive and negative electrodes, and the power supply structure for receiving the power supply in the main control circuit is not repeated as described above.

In this embodiment, the internal voltage converting unit includes two voltage converting elements, a first voltage converting element converts the voltage inputted to the positive and negative electrodes to 12V, and supplies the voltage to the main control circuit; the second voltage conversion unit further reduces the 12V voltage obtained by the previous conversion to 5V, and supplies the voltage to the AC drive circuit as a power supply.

The AC driving circuit 27-III is provided with a starting switch, the starting switch is a switch of the AC driving circuit, when the AC driving circuit is closed, the AC driving circuit is started, and the power supply system 100-III starts to work and supplies power to the outside; when the alternating current driving circuit is turned on, the alternating current driving circuit is turned off, and then the power supply system is turned off.

In this embodiment, the AC output interface 11-iii is provided with a trigger mechanism, the trigger mechanism is connected to the start switch of the AC driving circuit 27-iii, and when the AC plug of the AC power device 300-iii is inserted into the AC output interface 11-iii, the trigger mechanism is triggered, the trigger mechanism turns on the start switch, the AC driving circuit 27-iii is turned on, and the power supply system 100-iii is powered on to supply power to the AC power device 300-iii. When the AC plug is unplugged, the trigger mechanism is again triggered causing the activation switch to close, thereby causing the power supply system 100-iii to shut down.

Specifically, the trigger switch is a microswitch and is arranged at a preset position of the alternating current output interface 11-III, and the preset position can be triggered by the abutment of an AC plug when the AC plug is inserted, so that a starting switch linked with the AC plug is turned on; when the AC plug is disconnected, the AC plug also leaves the micro switch at the same time, the micro switch is released, and the starting switch linked with the micro switch is turned off.

The power supply system 100-III supplies power by using the battery pack 5-III, the energy is limited, if each circuit of the power supply system 100-III is continuously standby and consumes power, the energy of the battery can be slowly exhausted, so that firstly, energy is wasted, and secondly, a user can have no power available when needing to use the power supply system, and the work of the user is influenced. However, if a power supply system, such as an adapter or a power supply platform, is configured with a start button and other components according to a conventional concept, a user needs to start a switch of the power supply system and a switch of an electric tool every time the power supply system works, the switch needs to be turned off every time the power supply system runs out, the operation is troublesome, and the user may forget to turn off the switch occasionally and still run out the electric quantity of a battery pack. In the embodiment, the linkage arrangement of the trigger mechanism and the start switch brings a good energy-saving effect to the power supply system, and provides convenience for the user in operation, so that the power supply system is started when the alternating current electric equipment is connected, and the power supply system is stopped when the alternating current electric equipment is separated without increasing operation steps.

In some cases, the user will not unplug the AC plug from the AC power device interface 11 after using the AC power device 300-iii, for example, the user may prepare to use the AC power device 300-iii after a certain period of time, or simply forget to unplug the plug. The power supply system 100-iii is still on and slowly drains its power.

To avoid this, the ac driving circuit 27-iii further includes a load detection unit for detecting a load condition of the power supply system 100-iii, and if the load condition meets a preset condition, the main control unit turns off the power supply system 100-iii. The preset condition may be that the load is lower than a preset value, or that the load is lower than the preset value for a preset time. The load detection unit may be an independent component, or the load detection may be realized by the current detection unit and the voltage detection unit.

In this embodiment, the maximum rated output power of the AC drive circuit 27-III is greater than 2000 Watts, for example 2500 Watts. This power is sufficient to drive most consumer appliances and ac power tools such as refrigerators, televisions, microwave ovens, as well as reciprocating saws, electric drills, lawn mowers, and the like.

In the embodiment, the AC output interface 11-iii includes a american standard AC jack, and the output voltage under the standard condition is 120V, so that it can be used as a mobile power supply platform in the united states.

In this embodiment, an interlock structure is provided between the ac output interface 11-iii and the dc output interface 9-iii to ensure that only one of the ac output interface 11-iii and the dc output interface 9-iii outputs power at the same time.

The interlocking structure is specifically a linkage mechanism between the direct current output interface 9-III and the series-parallel circuit 43 e-III of the alternating current drive circuit 27-III, and the linkage mechanism comprises a triggering part positioned on the direct current output interface 9-III and a linkage part positioned between the series-parallel circuit and the interface circuit 25-III. When the adapter 30-III is connected to the DC output interface 9-III, the trigger part is triggered to make the linkage part act to disconnect the electrical connection between the serial-parallel circuit and the interface circuit 25-III; the linkage section maintains the electrical connection between the series-parallel circuit and the incoming circuit when the access adapter 30-iii is not present in the dc output interface 9-iii.

In the present embodiment, the rated output voltage of the ac output interface 11-iii is N times the rated output voltage of the dc output section (including the dc output interface 9-iii and the adaptor 30-iii), where N is a positive integer less than 10. Specifically, the rated output voltage of the ac output interface 11-iii is 120V, and the output voltage of the dc output section is 20v,40v,60v, or 120V.

In this embodiment, the power supply system further includes a charger 70-III. The structure and operation of the charger 70-iii will now be described with reference to fig. 14-iii.

As shown in fig. 14-iii, the charger includes an output 71-iii, a main body 73 and an AC plug 75-iii. The output end is provided with an electric energy output interface which is matched and connected with the direct current output interface 9-III. That is, the dc output interface 9-iii also serves as the charging input interface. Similarly to the input interface of the adapter 30-III, the power output interface of the charger 70-III is also provided with a plurality of pairs of positive and negative electrodes and signal electrodes. Specifically, 6 pairs of positive and negative electrodes and a pair of signal transceiving electrodes are arranged on the electric energy output interface.

Series-parallel circuits 43 f-III are also provided in the output terminals of the charger, and are connected to 6 pairs of positive and negative electrodes on the charger, which are connected in series with each other into the body 73-III of the charger 70-III. While the output 71-iii also connects the signal electrode to the charger body 73-iii.

The charger 70-III has a charging circuit and a charging protection circuit in its body 73-III, the charging circuit is connected to the series-parallel circuit 43 f-III to charge the battery pack 5-III, that is, the charger 30 charges a plurality of standard battery cells 51-III in a series-parallel configuration to form a 120V battery pack. Meanwhile, the charging protection circuit receives the battery pack information transmitted by the body circuit 23-III of the power supply platform through the signal electrode so as to perform charging protection, for example, when the voltage of the battery is lower than a preset value, the battery pack is judged to need to be charged so as to perform charging; when the battery voltage is higher than a preset value, judging that the battery pack is charged, and stopping charging; stopping charging when the battery pack is over-temperature, and the like. Other response logic and discharge protection circuits are similar and not described in detail.

It should be noted that in this embodiment, since the dc output interfaces 9-iii are charging interfaces at the same time, the power supply platforms 1-iii avoid outputting and charging dc power at the same time; and because an interlocking structure is arranged between the direct current output interface 9-III and the alternating current driving circuit 27-III, the alternating current driving circuit 27-III does not work when equipment is connected into the direct current output interface 9-III, and the power supply platform 1-III also avoids simultaneous alternating current output and charging. The power supply platforms 1-iii thus achieve an interlocking of charging and discharging.

In order to improve the heat dissipation capability, in the present embodiment, as described above, the standard battery cells 51-iii of the battery packs 5-iii are connected in series-parallel circuit arrangement both at the time of ac output and at the time of chargingThe energy storage component set to 120V operates. By forming a higher voltage in series, the operating current I of the battery pack 5-iii is smaller, so that Q = I based on joule's law ² Rt, less heat dissipation.

The following describes a second embodiment of the present invention under the guidance of a third inventive concept.

The structure of the present embodiment is substantially the same as that of the first embodiment of the invention under the guidance of the third inventive concept, and the difference is that: the power supply platforms 1-iii have a base station mode in addition to a piggyback mode. In the back-pack mode, the power supply platforms 1-III are worn on the body of a user through the wearing part; in the base station mode, the power supply platforms 1-III are placed on the work surface by the base provided on the body 13-III.

In the embodiment, the wearing part of the power supply platform 1-III is detachably arranged on the body 13-III, and the body 13-III is suitable for being carried by a user when the wearing part is arranged on the body 13-III; when the wearing part is removed from the body 13-III, the base of the body 13-III is exposed without shielding and interference, and thus is suitable for being placed on a table, a floor, or the like.

In this embodiment, the power supply platform 1-III is a backpack, and the back plate of the backpack is substantially parallel to the lengthwise direction of the battery pack 5-III; and the plane defined by the base is also substantially parallel to the longitudinal direction of the battery pack 5-iii. Therefore, when the backpack is carried, the gravity center of the battery pack 5-III is close to the human body, so that the physical strength is saved; when the battery pack is horizontally placed, the gravity center of the battery pack 5-III is lower and is more stable.

In the embodiment, when the power supply platform 1-III is worn on the user through the wearing part, the length direction axis of the battery pack 5-III extends basically vertically relative to the ground; when the power supply platform 1-III is placed on a supporting surface through the base of the body 13-III, the lengthwise axis of the battery pack 5-III is substantially parallel or perpendicular to the supporting surface.

In this embodiment the chassis and the wearing part are located on the same side of the body 13-iii. In alternative embodiments, however, the chassis and wearing feature are located on different sides of the body 13-iii.

In alternative embodiments, the wearing member may be secured to the body 13-III so long as the wearing member has a position that does not interfere with the seating of the base on the work surface.

A third embodiment of the present invention directed to a third inventive concept is described below.

The structure of this embodiment is substantially the same as that of the first embodiment of the invention under the guidance of the third inventive concept, and the difference is that: the outlet of the adapter 30-iii is detachably connected to the inlet 31-iii, i.e. the outlet of the adapter 30-iii can be replaced.

As mentioned above, the input terminal 31-iii of the adaptor 30-iii has a series-parallel circuit built therein to determine the output voltage of the adaptor 30-iii, and the interface of the output terminal of the adaptor 30-iii is matched with the specific brand/model of electric tool, which is the case in the industry where the input voltage of many electric tools of different brands is the same and the interfaces are not the same. By providing an adapter with replaceable outlets, a user can power multiple power tools from the power platforms 1-III by purchasing multiple outlets 37-III, without purchasing multiple adapters 30-III, thereby reducing the cost of the user.

In the case where the output terminals 37-iii are detachable, the interface between the input terminals 31-iii and the output terminals 37-iii comprises terminals comprising: the output positive and negative electrode terminals, the input positive and negative electrode terminals and the signal terminals, wherein the types and the number of the terminals are consistent with the types and the number of the leads of each group in the transmission line.

The fourth embodiment of the present invention under the guidance of the third inventive concept is described below.

The structure of this embodiment is substantially the same as that of the first embodiment of the invention under the guidance of the third inventive concept, and the difference is that: the output of the adapter 30-iii is not a battery pack-like structure for mating with an electric tool that would otherwise use the battery pack 5-iii, but is a cable-type output structure.

In some scenarios, the dc power tool is a high voltage hand held power tool, such as a power tool greater than 50V, greater than 60V, or even greater than 100V. In this case, a 120V hand held power tool. In this scenario, since the battery pack 5-iii is too heavy under high voltage conditions, it can be very laborious for the user, and can cause a bad user experience and a risk of falling if mounted on the power tool. Therefore, in this scenario, the hand-held power tool does not have a battery pack support device thereon, but only has one power input interface. Correspondingly, the adapter comprises a cable-type power output part formed by the output end.

That is, the battery pack 5-iii is supported in the power supply system 100-iii by the battery pack support device 15-iii, the power supply platform 1-iii is separated from the dc power tool, the power supply platform 1-iii outputs power to the dc power tool through the cable-type power output portion, the battery pack support device 15-iii is disposed only on the power supply platform 1-iii, and the power input interface on the dc power tool only includes a port for coupling with the cable-type power output portion.

In this type of cable output, the terminals on output interface 39-III of output 37-III include: the output positive and negative electrode terminals, the input positive and negative electrode terminals and the signal terminals, wherein the types and the number of the terminals are consistent with the types and the number of the leads of each group in the transmission line. The discharge protection circuit is built in the power tool, and its control logic and arrangement are identical when in the adapter 30-iii, which will not be described in detail.

The following describes a fifth embodiment of the present invention under the guidance of the third inventive concept.

This embodiment can be regarded as a combination of the third and fourth embodiments of the present invention under the guidance of the third inventive concept.

The power supply system 100-iii has the same adaptor 30-iii as the fourth embodiment, and the adaptor 30-iii has a cable-type output terminal. Also, the power supply system 100-III has an extended output removably coupled to the cable-type output. The extension output end is adapted to a specific electric tool, and the power supply system can supply power to different electric tools by replacing different extension output ends.

The adapter 30-iii of this embodiment can be used to power either a high voltage hand held power tool or a conventional power tool using a battery pack 5-iii. When supplying power to the high voltage hand held power tool, the cable type output of the adapter 30-III is directly connected to the power tool; when the power supply is used for supplying power for a specific common electric tool using the battery pack, the output end of the adapter is matched with the output end of the battery pack.

The following describes a sixth embodiment of the present invention under the guidance of the third inventive concept.

The power supply system 100-iii of the present embodiment is substantially the same as the fourth embodiment of the present invention under the guidance of the third inventive concept, and the difference is that the working system of the present embodiment includes a high-voltage hand-push type power tool.

In some scenarios, the dc power tool is a high voltage hand-push power tool, which is supported on the ground for the most part, and has a push rod and a main body, and the push rod is pushed by a user to drive the main body to move on the ground, such as a hand-push mower.

Since the weight of the hand-push type power tool does not need to be lifted by a user, a heavy battery pack can be mounted on the power tool even at a high voltage. Thus, the power tool in the working system has 2 sets of input interfaces, one set of input interfaces is used for receiving the weight and the electric energy of the battery pack, and the other set of input interfaces is used for receiving the electric energy of the power supply platforms 1-III. In this embodiment, the battery pack input interface of the power tool includes two battery pack interfaces, each of which receives a 60V battery pack and bears the weight thereof. The electric energy interface of the electric energy transmission device is a cable type electric energy output part interface and is used for being matched and connected with the cable type electric energy output part.

The arrangement of the cable-type power output on the push rod, more particularly on the upper part of the push rod, is due to the fact that in this embodiment the power supply platforms 1-iii are wearable devices, such as backpacks. The push rod is the part of the hand-push type electric tool closest to the body of the user, and the arrangement at the position can facilitate the plugging and unplugging of the cable type electric energy output part of the user and avoid the phenomenon that the cable is too long, drags the ground and even trips the user.

The following describes a seventh embodiment of the present invention under the guidance of the third inventive concept.

The structure of this embodiment is substantially the same as that of the first embodiment of the present invention under the guidance of the third inventive concept, and the difference is that: the energy storage components 3-III are different in structure, and correspondingly, the battery pack input interface and the interface circuit of the power supply platform are also different.

Specifically, the energy storage component includes 4 battery packs, and each battery pack 5-iii includes 3 20V standard battery cells 51-iii, that is, the energy storage component 3-iii includes the same configuration and number of the standard battery cells 51-iii as in the first embodiment, but is divided into 4 battery packs. Correspondingly, the power supply platform comprises 4 battery pack input interfaces, and each battery pack output interface comprises 3 positive and negative electrodes and a plurality of signal electrodes. The interface circuit also connects two standard battery units belonging to different battery packs in parallel to form 6 pairs of positive and negative electrode leads for outputting to other components of the power supply platforms 1-III.

In this embodiment, in order to ensure that 120V dc or ac can be normally output. The power supply platforms 1-iii can only be equipped with 2 battery packs or 4 battery packs, and do not work in other situations.

In order to avoid error installation, the battery pack interfaces are divided into a plurality of groups, each group comprises a plurality of battery pack interfaces, each positive electrode and each negative electrode in each group of battery pack interfaces are electrically isolated, and the corresponding positive electrodes and the corresponding negative electrodes in different groups are connected in parallel. Specifically, the battery pack interfaces are divided into 2 groups, and each group includes 2 battery pack interfaces. The battery pack can only be connected to the power supply platform in a mode of being installed on one group of the battery pack or installing all battery pack interfaces.

The power supply platform further comprises a battery pack installation indicating device, and the battery pack installation indicating device indicates a user to install the battery pack in the cost support device in a mode that each group of battery pack interfaces is filled with or empty of the battery packs.

A seventh embodiment of the invention, guided by the third inventive concept, describes another form of energy storage component, but many more forms are possible.

For example, in one embodiment, at least one primary energy storage module comprises only one secondary energy storage module. The energy storage components 3-III comprise 6 secondary energy storage modules with 20V rated voltage, but each secondary energy storage module forms a battery pack, namely the energy storage components comprise 6 battery packs with 20V rated voltage.

In another embodiment, the number of secondary energy storage modules in at least two primary energy storage modules is different, for example, the energy storage components 3-iii also comprise 6 secondary energy storage modules rated at 20V. However, the three secondary energy storage modules jointly form a battery pack, and the other three secondary energy storage modules independently form a battery pack, namely the energy storage components 3-III comprise a battery pack with the rated voltage of 60V and three battery packs with the rated voltage of 20V.

In another embodiment, the energy storage components 3-iii also comprise 6 secondary energy storage modules rated at 20V, with the difference that two secondary energy storage modules together form a battery pack, i.e. the energy storage components 3-iii comprise three battery packs rated at 40V.

The above configuration schemes are only examples, and those skilled in the art can understand that the configuration schemes do not constitute a limitation to the present invention, and other configuration schemes are also possible, for example, the sum of the rated voltages of the plurality of secondary energy storage modules in the foregoing scheme is 120V or 240V, but other alternatives may be 160v,200v, and the like, which are not described in detail.

An eighth embodiment of the present invention directed to the third inventive concept is described below.

The structure of the present embodiment is substantially the same as that of the first embodiment of the present invention under the guidance of the third inventive concept, except that the series-parallel circuit originally located in the adapters 30-iii is instead arranged in the power supply platforms 1-iii. The dc output interfaces 9-iii are connected to different series-parallel circuits by connecting to different adapters 30-iii to obtain different voltage outputs. The configuration of each series-parallel circuit is the same as that of the series-parallel circuit, and the series-parallel circuit can

output

20V, 40V, 60V and 120V output voltages, which are not described again.

In the present embodiment, the body circuit 23-iii includes a voltage selection module, and the voltage selection module selectively connects one of the aforementioned series-parallel circuits to the dc output interface according to the type of adaptation, so as to output an appropriate voltage to the outside. In an alternative embodiment, the adapters 30-III may also be directly structurally matched, rather than electronically controlled, to select the series-parallel circuit, e.g., four series-parallel circuits are arranged in the power supply platforms 1-III in isolation from each other, with a particular series-parallel circuit being inserted into the circuit when a particular adapter 30-III or other terminal is inserted.

The following describes a ninth embodiment of the present invention under the guidance of the third inventive concept.

The structure of this embodiment is substantially the same as that of the first embodiment of the present invention under the third inventive concept, and the difference is in the interlock structure between the ac output interfaces 11-iii and the dc output interfaces 9-iii.

In this embodiment, the interlock mechanism is a mechanical interlock mechanism. The mechanical interlocking mechanism comprises locking pieces arranged on the alternating current output interface and the direct current output interface and linkage pieces among the locking pieces, wherein the locking pieces move between a locking position and an unlocking position; when any output interface is matched with other equipment, the locking piece is fixed at the unlocking position, and simultaneously the locking piece drives the linkage piece to ensure that other locking pieces are fixed at the locking position.

Specifically, the mechanical interlocking mechanism is a locking rod, the locking rod is positioned between the two output interfaces, two ends of the locking rod respectively and movably extend into the two jacks to form two locking pieces, and the part between the two ends forms the linkage piece.

The following describes a tenth embodiment of the present invention under the guidance of the third inventive concept.

The structure of this embodiment is substantially the same as that of the first embodiment of the present invention under the guidance of the third inventive concept, and the difference lies in the interlocking structure of the ac output interface and the dc output interface.

In this embodiment, the power supply system includes an ac start connector, and the ac drive circuit can be started only when the ac start connector is plugged into the dc output interface. Therefore, when the alternating current driving circuit is started and the alternating current output interface supplies power to the outside, the direct current output interface is occupied and cannot output energy to the outside, and therefore interlocking of alternating current output and direct current output is achieved.

Further, the series-parallel circuit in the aforementioned ac drive circuit may be disposed in transfer to the ac starting junction. That is, a plurality of pairs of positive and negative electrodes are arranged on the input interface of the alternating current starting joint and are connected to a series-parallel circuit built in the alternating current starting joint, and the series-parallel circuit connects the plurality of pairs of positive and negative electrodes in series and then is connected to an alternating current driving circuit in the body. Under the arrangement, when the AC starting connector is not connected to the DC output interface, the AC driving circuit and the battery pack are isolated and cannot be started.

An eleventh embodiment of the present invention under the guidance of the third inventive concept will be described below with reference to fig. 15-iii-20-iii.

In this embodiment, the structure of the power supply system is substantially the same as that of the first embodiment of the present invention under the guidance of the third inventive concept, and the differences thereof will be mainly described below.

As shown in fig. 15-iii, the power supply platform body 13-iii also includes two battery pack access interfaces, a body circuit 23-iii and an ac drive circuit 27-iii. The DC output interface 9-III is connected to the body circuit 23-III, and the power supply system 100-III outputs DC electric energy of various voltages including 20V,40V and 60V to the outside through cooperation with the adapter 30-III. The AC output interface 11-III is connected to the AC drive circuit 27-III to output 120V AC power. Differences between the present embodiment and the first embodiment include: the device also comprises a single 120V direct current output interface 9 a-III, and the direct current output interface 9 a-III and the alternating current driving circuit 27-III share a series-parallel circuit; the discharge protection circuit when the power supply system 100-III performs direct current output is positioned in the body 13-III, more specifically, integrated into the body circuit 23-III, and the adapter 30-III does not comprise the discharge protection circuit any more, but only a series-parallel circuit and a power line; the charging interfaces 12-III and the direct current output interfaces 9-III are arranged independently.

In an alternative embodiment, the 120V DC output ports 9 a-III and the AC output ports 11-III are integrated into one port that outputs 120V DC power when an adapter is connected and 120V AC power when an AC plug is connected.

As shown in fig. 16-iii, the dc output interface 9-iii is connected to the first adaptor 301 a-iii. The first adapters 301 a-iii are 20V adapters. The input interface of the input end 31-III of the adapter is provided with a plurality of pairs of input positive and negative electrodes, and further comprises an output positive electrode and a reference negative electrode. Correspondingly, a plurality of pairs of output positive and negative electrodes, an input positive electrode and a reference negative electrode are arranged on the direct current output interface 9-III.

The series-parallel circuits 44 a-III in the adapter output terminals 37-III connect all pairs of input positive and negative electrodes in parallel to output a rated voltage of 20V. The series-parallel circuits 44 a-iii on the one hand output the 20V nominal voltage to the output of the adapter; on the other hand, the 20V rated voltage is output to the output anode of the input end of the adapter, and is applied to the body circuit 23-III through the connection of the output anode and the reference cathode and the input anode and the reference cathode on the direct current output interface 9-III, so as to supply power to the body circuit and other equipment.

The output terminals 37-III of the adapter have a pair of positive and negative electrodes to provide power to the DC powered device 200-III. The input end 31-III and the output end 37-III of the adapter are connected through a transmission line 35-III, and the transmission line 35-III only comprises positive and negative leads for transmitting electric energy.

Specifically, in the present embodiment, the positive electrodes of each pair of input positive and negative electrodes of the input terminals 31-iii are connected in parallel with each other and then connected to the positive electrode of the output terminal 37-iii through the positive electrode lead in the transmission line 35-iii; the negative electrodes of each pair of input positive and negative electrodes of the input end 31-III are not directly connected with the negative electrode of the output end 37-III after being connected in parallel, but are connected with the reference negative electrode of the direct current output interface 9-III through a power lead in the body, and are connected with the reference negative electrode of the input end 31-III of the adapter through the power lead after being butted with the reference negative electrode of the output end 37-III of the adapter.

The output end 37-iii of the adapter is in the form of a battery pack adapted to be coupled to a particular type of power tool. The output end of the adapter also has a temperature pole piece. But the temperature pole piece is not connected with the battery pack and outputs a normal temperature signal forever. The actual temperature sensing pole piece and signal are both transmitted to the body circuit 23-iii.

The body circuit 23-iii includes a discharge protection function, as described above, and specific parameters of the discharge protection, such as an under-voltage threshold, an over-current threshold, and the like, are different for different dc output voltages. Therefore, when adapters with different output voltages are connected to the direct current output interface, the body circuit correspondingly selects different discharge protection programs. Specifically, the body circuit 23-iii includes a voltage detection unit for detecting an output voltage of the power supply system; according to the output voltage, the body circuit selects a corresponding discharge protection program. For example, when the detected voltage is between 16V and 25V, the main body circuit 23-iii determines that the dc output interface 9-iii is connected to the first adaptor 301 a-iii of 20V, and correspondingly selects a specific under-voltage threshold and an over-current threshold by using a discharge protection program in a 20V dc output scene. When the voltage is detected to be between 32V and 46V, the body circuit 23-III judges that the direct current output interface 9-III is connected with the 40V second adapter 302 a-III, correspondingly adopts a discharge protection program under a 40V direct current output scene, and selects a specific undervoltage threshold value and an overcurrent threshold value. When the voltage is detected to be between 50V and 66V, the body circuit judges that the DC output interface is connected with the 60V third adapter 303 a-III, correspondingly adopts a discharge protection program under the 60V DC output scene, and selects a specific undervoltage threshold value and an overcurrent threshold value.

The power supply system 100-iii has different requirements for device parameters and reliability in the discharge protection circuit at different output voltages. In the first embodiment, the discharge protection circuit is located in the adapter 30-iii, each output voltage has an independent discharge protection circuit, the selection of components of the discharge protection circuit is consistent with the requirement of the output voltage, and the higher the output voltage is, the higher the requirement on the components is. In this embodiment, since the discharge protection circuits of 20V, 40v and 60v are used in common and the same components must be used, the arrangement in the case of 60V output voltage is selected in consideration of whether the components are high or low.

By integrating the discharge protection circuits in 20V, 40V and 60V output into the body circuit, the cost of the adapter is greatly reduced, the circuit arrangement is simplified, signal lines do not need to be arranged in the transmission lines, and only positive and negative power lines are needed.

The battery pack access interface of the main body 13 and the connection portion between the interface circuit and the battery pack access interface are the same as those in the first embodiment, and are not described again.

In the main body circuit 23-iii, the discharge protection circuit portion also includes a voltage detection device and a discharge current detection device, which are not described again. But the difference is that since the discharge protection circuit is integrated in the body circuit 23-iii, no signal interaction is required between the body circuit 23-iii and the adapter 30-iii, and the corresponding signal pole piece and signal and communication device are eliminated. The main control unit of the body circuit 23-III receives the voltage signal and the current signal and then directly controls the discharge protection circuit and the peripheral equipment to work. For example: alarm or power off when the voltage is too low: alarming or powering off when the current is too large; correspondingly adjusting the rotating speed of the fan according to the temperature; alarming or powering off when the temperature is too high; displaying battery power, etc.

The main body circuit 23-III is also provided with a main switch which can carry out high-current trip protection.

The body circuit 23-III includes a voltage step-down device therein for converting the DC voltage returned from the adapter to a predetermined value to power the body circuit 23-III and other electrical devices in the body, such as a fan, a display device, etc. Specifically, the dc voltage of the voltage dropping device is converted to 12V and 5V, which are respectively supplied to different devices, which is similar to the first embodiment and will not be described again. In addition, because the main part is when connecting different adapters, and received voltage is different, and step-down device can be according to input voltage and adjust the step-down mode, guarantees to fall to preset voltage with voltage.

Similar to the first embodiment, the start switch of the main body circuit 23-III is interlocked with the trigger device in the DC output interface 9-III, so that when the DC output interface 9-III is connected to the adapter 30-III, the trigger device is triggered by the input terminal 31-III of the adapter to turn on the start switch. And the body circuit 23-iii is self-powered down when the load is too low. The main body 13-III is also provided with a reset switch, after the power supply is automatically cut off, the user manually restarts the power supply system 100-III, and the reset switch is linked with a starting switch or a trigger device in the direct current output interface. The triggering device in the dc output interface 9-iii is also a microswitch.

In this embodiment, the main body 13-III has a power display switch, and when pressed, the remaining power is displayed on the display panel of the main body 13-III. The detection manner of the remaining power is not specifically described.

In this embodiment, the dc output interfaces 9-iii and the ac output interfaces and the 120V dc output interfaces 9 a-iii are interlocked, i.e. when the dc output interfaces 9-iii are connected to the adapters 30-iii, the ac output interfaces 11-iii and the 120V dc output interfaces 9 a-iii cannot output electric energy.

As shown in fig. 17-iii, the body of the power platform is mated with a 40V output second adapter 302 a-iii. Series-parallel circuits 44 b-iii in the input terminals 31-iii of the second adapters 302 a-iii connect the positive and negative output plates of the dc output interfaces 9-iii in series, in groups of two, and then connect the groups in parallel to output a nominal voltage of 40V. After the 40V adapter is connected, the body circuit is triggered to start, the output voltage is detected to judge the type of the connected adapter, and after the detection confirms that the 40V adapter is connected, the body circuit selects a corresponding discharge protection program.

When the second adapters 302 a-iii are connected, other configurations of the power supply system are the same as those when the first adapters 301 a-iii are connected, and thus detailed description thereof is omitted.

Referring to fig. 18-iii, the body 13-iii of the power supply platform 1-iii is coupled to a third adapter 303 a-iii with a 60V output. 6 series-parallel circuits 44 c-iii in the input terminals of the third adaptors 303 a-iii connect the positive and negative output pole pieces of the dc output interfaces 9-iii in series in groups of three, and then connect the groups in parallel to output a rated voltage of 60V. After the 60V adapter is connected, the body circuit 23-III is triggered to start, the output voltage is detected to judge the type of the connected adapter, and after the detection confirms that the third adapter 303 a-III is connected, the body circuit 23-III selects a corresponding discharge protection program.

When the third adapters 303 a-iii are connected, other configurations of the power supply system are the same as those of the first adapters 301 a-iii, and are not described in detail.

As shown in fig. 19-iii, the 120V dc output interface and the 120V ac output interface share part of the circuit. More specifically, since the output voltages are the same, the series-parallel circuit and the discharge protection circuit of the ac drive circuits 27-iii are shared by the 120V dc output interface and the 120V ac output interface.

When the 120V direct current output interfaces 9 a-III or the alternating current output interfaces 11-III are connected with the equipment, the serial-parallel circuits 43 d-III of the alternating current driving circuits 27-III are connected to the interface circuits 25-III, and the direct current output interfaces 9-III and the charging interfaces 12-III are locked to prevent the direct current output interfaces 9-III and the charging interfaces 12-III from outputting electric energy outwards. The series-parallel circuits 43 d-iii connect 6 pairs of positive and negative electrodes of the interface circuits 25-iii in series with each other, and supply the resulting 120V dc voltage to the 120V dc output interfaces 9 a-iii and the dc-ac conversion devices, i.e., the H-bridge driver and the H-bridge circuit, respectively. Meanwhile, the series-parallel circuit also provides voltage to the voltage reduction device, and the voltage is reduced to 12V and 5V to supply power to the peripheral equipment and the main control unit. In addition, similar to the first embodiment, the ac driving circuits 27-iii are built with load detection devices, which automatically cut off the power when the load is low, to prevent the power supply platforms 1-iii from self-discharging when no energy is externally output; a starting switch is also arranged in the system, and a fourth adapter 304 a-III is connected into a 120V DC output interface 9 a-III to start an AC driving circuit.

The main control units of the ac driving circuits 27-iii and the main control units of the body circuits 23-iii have a terminal connection relationship, and the two main control units each have a pair of positive and negative terminals and a pair of signal transceiving terminals, and are connected in pair with each other. The two main control units communicate through the signal transceiving terminals to transmit various signals and control instructions, such as a discharge voltage value, a discharge current value, a temperature value, a power-off instruction, a fan operation instruction and the like. The positive and negative terminals are used for providing 5V electric energy of the alternating current driving circuit to the main control unit of the body circuit.

It should be noted that, in the 120V dc output or 120V ac output scenario, the power supply system 100-iii discharge protection circuit is mainly controlled by the ac driving circuit 27-iii, but is also matched by the main body circuit 23-iii. Specifically, the alternating current driving circuit 27-III comprises a voltage detection device and a current detection device of the complete machine of the power supply system 100-III; the body circuit 23-III collects battery pack temperature information and single battery voltage information from the battery packs 5-III through the interface circuits 25-III and transmits the battery pack temperature information and the single battery voltage information to the alternating current driving circuit 27-III, and the alternating current driving circuit 27-III integrates self-detected information and received information and starts a discharge protection action under a preset condition, such as alarming or power failure. The body circuit 23-iii itself also performs part of the control function, such as controlling the fan operation according to the temperature.

The AC driving circuit 27-III also returns the 12V voltage to the main body circuit 23-III to drive the fan and other devices to work.

The inputs 31-III of the fourth adapter 304 a-III of 120V do not comprise series-parallel circuits and are thus arranged smaller than the inputs of the previous 20V, 40V, 60V adapters. The input terminals of the fourth adapters 304 a-iii may be configured similar to a conventional ac plug that can be plugged into an ac jack, thereby allowing the 120V dc output interface and the 120V ac output interface to be integrated into one in some embodiments.

The output of the fourth adapter 304 a-iii is substantially the same as the architecture of the other adapters, excluding the discharge protection circuit; but is similar in construction to the first embodiment in that it is a cable splice, adapted for a specific 120V tool.

The following describes the ac output portion of the present embodiment.

When the alternating current output interface 11-III is inserted into an alternating current plug, the alternating current driving circuit 27-III is triggered to start, and the H bridge driving circuit drives the H bridge to output square wave or trapezoidal wave alternating current electric energy, but the voltage is unchanged. The operation is similar to that of the first embodiment and will not be described again.

The charging portion of the present embodiment is described below.

As shown in fig. 20-iii, similarly to the first embodiment, the charger 70-iii has a body 73-iii, an output 71-iii in which a series-parallel circuit 43 e-iii is provided to connect the respective standard battery cells in a predetermined combination into a charging circuit, and an AC plug 75-iii. The present embodiment differs from the first embodiment in that the series-parallel circuits 43 e-iii group the output positive and negative electrodes of the dc output ports 9-iii in two, and connect them in series within the group, connect them in parallel between the groups to form a battery pack of a rated voltage of 40V, and the charger 70-iii charges the battery pack. In an alternative, the series-parallel circuit 43 e-III of the charger 70-III may also configure the standard cell as a 60V battery pack for charging. Higher charging voltages may reduce heat dissipation, for reasons previously described.

In addition, the output terminals 71-III of the charger are matched with the charging interfaces 12-III on the body, and the arrangement of the interface pole pieces of the output terminals 71-III is different from that of the first embodiment. The charging interface comprises 6 pairs of input positive and negative electrodes which are respectively connected with 6 pairs of power leads of the interface circuit; the device also comprises an additional input anode and a reference cathode; the input positive and reference negative poles are also connected to a pair of power supply leads. The output end of the charger comprises 6 pairs of output positive and negative electrodes which are connected with 6 pairs of input positive and negative electrodes; the charging system also comprises an additional output positive electrode and a reference negative electrode which are connected with the input positive electrodes and the reference negative electrodes of the charging interfaces 12-III. 6 pairs of input positive and negative electrodes are connected with the series-parallel circuit 43 e-III, and the positive electrode of one end of the series-parallel circuit 43 e-III is connected into the body 73-III of the charger 70-III and is connected to the positive electrode of the mains voltage; an additional positive output terminal and a reference negative terminal are connected to the charger body 73-iii, with the positive output terminal connected to a voltage regulation circuit in the body 73-iii which regulates the mains voltage to 12V and supplies the body circuit 23-iii with power to the body circuit 23-iii and other consumer devices in the body 1. From the above description, it will be appreciated that the transmission line 72-III of the charger 70-III includes 3 power lines, a mains voltage positive lead, a 12V voltage positive lead and a negative lead.

In this embodiment, the reference negative electrode of the charging interface 12-iii and the reference negative electrode of the dc output interface 9-iii are different in position, so that when the reference negative electrode of the charging interface 12-iii is connected to the reference negative electrode of the charger 70-iii, the charging current detection device and the charging loop control device are connected to the circuit, and the discharging current detection device and the discharging loop control device are not connected to the circuit. When the reference cathode of the dc output interface 9-iii is connected to the reference cathode of the adapter 30-iii, the situation is the opposite, which makes the discharging current detection device and the discharging loop control device connected to the circuit, but makes the charging current detection device and the charging loop control device not connected to the circuit.

Other parts of this embodiment are basically similar to the first embodiment of the present invention under the guidance of the third inventive concept, and are not described again.

In the foregoing power supply system, the ac device interface may output dc power and ac power. The direct current and the alternating current can be output alternatively or simultaneously. When the user selects one output, the user can select the output manually or automatically. The manner of automatic selection is as described above. The manual selection may be such that the interface of the ac device comprises two identical interfaces. The first interface outputs direct current, and the second interface outputs alternating current. When the user connects the alternating current equipment to the first interface, the alternating current equipment interface outputs direct current. When the user connects the alternating current equipment to the second interface, the alternating current equipment interface outputs alternating current. The manual selection may also be performed by triggering a selection device provided on the power supply system after the user connects the ac device to the ac device interface. The selection device generates a corresponding signal according to the operation of the user. And the power supply system controls the interface of the alternating current equipment to output direct current or alternating current according to the signal generated by the selection device. In order to avoid the situation that the direct output of the rated power alternating current results in the excessive compliance of the device when the alternating current driving unit outputs the alternating current, it is preferable that the alternating current driving unit gradually increases the power of the alternating current applied to the interface of the alternating current device in a soft start manner.

In the interrupted direct current as shown in fig. 37-ii, the duration of each interruption is T, and the duration of each direct current is T '(T' = T-T). In the direct current output, the reason for setting the interruption is to ensure that the main switch of the alternating current equipment can smoothly cut off the power supply of the direct current to the alternating current equipment when the main switch is disconnected through the interruption lasting preset time length, so that the situation that the main switch is disconnected after receiving a disconnection instruction is avoided. The main switch is a switch which is arranged on the alternating current equipment and is connected with a load device of the alternating current equipment in series, when the main switch is closed, electric energy flows from the alternating current equipment interface to the load device through the main switch, so that the load device obtains the electric energy and starts to work, and when the main switch is disconnected, the electric energy transmission between the alternating current equipment interface and the load device is interrupted, so that the load device stops working. By way of example, the load device of the ac equipment is described, such as a compressor as the load device of a refrigerator, a motor as the load device of a household electric fan, and a motor as the load device of an ac electric tool. The off command may be a manual release of the main switch by an operator or an off command from the control unit.

The main reason why the main switch is not opened after receiving the opening instruction is that under the condition that the current or the voltage flowing through the main switch is large, air between the contacts can be ionized, namely, an arc is generated between the contacts, so that the two opened contacts can still transmit power through the arc, namely, the contacts are not opened, and the main switch cannot be opened. However, if the current output is interrupted, the power of the air disappears, the arc discharge disappears, and the power cannot be transmitted between the two disconnected contacts, so that the disconnection of the main switch is realized.

The interruption duration time t is determined according to the operation frequency of the main switch, the material of the main switch contacts, the distance between the contacts, the elastic force of the contacts, the magnitude of the flowing current or voltage and other factors. In view of the above considerations, it is preferred that the interruption duration t be greater than 3ms. More preferably, the duration t of the interruption is between 4ms and 6ms. The interruption must not last too long, otherwise it is liable to cause fluctuations in the load and in the power supply of the control circuit.

The duration T' of the direct current is determined according to the time difference between the point of time when the main switch is turned off and the point of time when the direct current interruption occurs, the operation frequency of the turning-off of the main switch, the material of the contacts of the main switch, the distance between the contacts, the elastic force of the contacts, the magnitude of the flowing current or voltage, and the like. In view of the above considerations, it is preferred that the duration T' of the direct current is greater than 20ms. More preferably, the direct current lasts for a time T' of 20ms to 200ms. The duration T' of the direct current cannot be too long, otherwise arcing is easily produced. The duration T' of the direct current must not be too short, otherwise the nominal power cannot be supplied to the alternating current equipment.

The interruption of the breakpoint direct current can occur periodically or only when a preset condition is met. In one case, the preset condition is that a main switch of the ac equipment receives an off command. Specifically, when the main switch of the ac device receives the disconnection command, the main switch may send the disconnection command to the power supply system in a mechanical or electronic manner, and the power supply system detects the signal, i.e., controls the dc power of the interface of the ac device to be interrupted, and controls the dc power to be continuously output after the interruption lasts for a preset time period. And when the next time of disconnection of the main switch is detected, interrupting the output of the direct current again, and controlling the direct current to continue to output after the interruption lasts for the preset time length, and repeating the steps in a circulating way. In the case of interruption of the direct current when the preset conditions are met, the duration of the interruption is t'. Preferably, the duration t' of the interruption is the same as the duration t of the aforementioned interruption. The interruption duration t is the duration of each interruption when the interruption of the breakpoint direct current periodically occurs.

In another case, the preset condition is that the main switch receives a disconnection instruction, and the working parameters of the main switch meet the breakpoint condition. The operating parameter of the main switch may be the current, voltage, etc. flowing through the main switch. When the working parameters of the main switch meet the breakpoint condition, the main switch is indicated to receive an opening instruction, but arc discharge is generated between the contacts of the main switch. At this time, current still flows through the main switch, and a voltage drop is generated between the contacts of the switch. At this time, the breakpoint condition is that the current flowing through the main switch is greater than or equal to a preset value within a preset time length after the main switch receives the disconnection instruction. The breakpoint condition may be that, within a preset time period after the main switch receives the disconnection command, a voltage difference generated between the two contacts by the current flowing through the main switch is smaller than or equal to a preset value.

In another case, the preset condition is that the operating parameter of the main switch meets the breakpoint condition. When the working parameters of the main switch meet the breakpoint condition, the main switch receives an opening instruction, but an arc is generated between the contacts of the main switch. Because the arc discharge has resistance, the working parameters of the main switch can be changed when the arc discharge is generated. For example, the current flowing through the main switch may decrease, and based on this, the breakpoint condition may be that the current flowing through the main switch is smaller than a preset value, or that the change rate of the current is negative and the absolute value is greater than or equal to the preset value, or that the current flowing through the main switch is greater than zero after the main switch is turned off for a preset time length; or the difference value of the current flowing through the main switch is larger than or equal to the preset value within the preset time length by taking the disconnection of the main switch as a starting point. For example, the voltage between the contacts of the main switch is increased but is smaller than the output voltage of the interface of the alternating current equipment, based on which, the breakpoint condition may be that the voltage at the two ends of the contacts of the main switch is smaller than a preset value, or the change rate of the voltage is positive and the absolute value is smaller than or equal to the preset value, or after the main switch is disconnected for a preset time length, the voltage at the two ends of the contacts of the main switch is smaller than the output voltage of the interface of the alternating current equipment; or the difference value of the voltages at the two ends of the contact of the main switch is smaller than or equal to the preset value within the preset time length by taking the disconnection of the main switch as a starting point. And when the power supply system detects that the working parameters of the main switch meet the breakpoint conditions, the direct current of the interface of the alternating current equipment is controlled to be interrupted, and after the interruption lasts for a preset time length, the direct current is controlled to be continuously output. And when the working parameters of the main switch meet the breakpoint conditions next time, interrupting the output of the direct current again, and controlling the direct current to continuously output after the interruption lasts for the preset time length, and repeating the steps in a circulating way. And when the direct current is interrupted when the working parameters of the main switch meet the breakpoint conditions, the interruption duration is t'. Preferably, the duration t' of the interruption is the same as the duration t of the aforementioned interruption. The interruption duration t is the duration of each interruption when the interruption of the breakpoint direct current periodically occurs.

In addition, the breakpoint direct current which is interrupted only when meeting the breakpoint condition and the breakpoint direct current which is interrupted periodically can be switched. Specifically, when the type a ac device is connected to the ac device interface, the power supply system supplies power to the ac device and constantly detects the operating parameters of the main switch of the ac device. And when the working parameters of the main switch do not accord with the breakpoint conditions, continuously outputting the direct current. And when the working parameters of the main switch are detected to meet the breakpoint conditions, interrupting the output of the direct current, and maintaining the interruption for a preset time length t. Subsequently, if the power supply system detects that the type a ac device continues to draw power from the power supply system and is not removed from the power supply system, the power supply system will supply power to the type a ac device with periodic break-point dc power. The mode for detecting that the type a alternating current device continues to get power from the power supply system may be to detect whether a plug of the alternating current device is plugged or unplugged, or to detect that current is output again at an alternating current device interface connected to the alternating current device within a preset time. It should be noted that the breakpoint direct current that is interrupted only when the breakpoint condition is met includes the breakpoint direct current that is interrupted when the working parameter of the main switch meets the breakpoint condition, that is, the breakpoint direct current that is output by the direct current is interrupted, and also includes the breakpoint direct current that is output by the main switch when the main switch receives the interruption instruction and the working parameter of the main switch meets the breakpoint condition.

In addition, the breakpoint direct current which is interrupted only when meeting the breakpoint condition and the breakpoint direct current which is interrupted when the main switch receives the disconnection instruction can be switched. Specifically, when the type a ac device is connected to the ac device interface, the power supply system supplies power to the ac device and constantly detects the operating parameters of the main switch of the ac device. And when the working parameters of the main switch do not accord with the breakpoint conditions, continuously outputting the direct current. And when the working parameters of the main switch are detected to meet the breakpoint conditions, interrupting the output of the direct current, and maintaining the interruption for a preset time length t. Then, if the power supply system supplies dc power to the type a ac device. When the power supply system detects that a main switch of the type A alternating current equipment receives a disconnection command, the output of direct current is interrupted, the interruption is maintained for a preset time length t, and then the direct current is continuously provided. It should be noted that the breakpoint direct current that is interrupted only when the breakpoint condition is met includes the breakpoint direct current that interrupts the direct current output when the working parameter of the main switch meets the breakpoint condition, and also includes the breakpoint direct current that interrupts the direct current output when the main switch receives the interruption instruction and the working parameter of the main switch meets the breakpoint condition.

Preferred embodiments of the fourth inventive concept of the present invention are described below with reference to fig. 1-iv.

As shown in fig. 1 to iv, the working system of the present embodiment is composed of an electric energy transmission device 1 to iv, an energy storage component 3 to iv, and an electric device 5 to iv. The electric energy transmission device 1-IV and the energy storage component 3-IV constitute an electric energy supply device (also called a power supply system). The electric energy transmission device 1-IV is electrically connected between the energy storage component 3-IV and the electric equipment 5-IV, and transmits the electric energy stored by the energy storage component 3-IV to the electric equipment for the electric equipment to work. The energy storage components 3-IV are direct current power supplies and specifically comprise one or more battery packs. The electric equipment 5-IV can be AC electric equipment, USB electric equipment, DC electric equipment, etc.

The power transmission device 1-IV comprises an input component 11-IV, a switching component 15-IV and an output component 13-IV. The input component 11-IV is connected with the energy storage component 3-IV to receive electric energy input, the output component 13-IV is connected with the electric equipment to output electric energy to the electric equipment, and the switching component 15-IV is connected between the input component 11-IV and the output component 13-IV to convert the electric energy received by the input component 11-IV into electric energy suitable for the electric equipment to use and transmit the electric energy to the output component 13-IV. The function and structure of the output member 13-iv and the changeover member 15-iv are the same as in the previous embodiment. The output means 13-iv comprise the output interfaces of the various previous embodiments. The switch component 15-iv may optionally include various circuitry, such as control circuitry and the like.

The energy storage components 3-IV may include a plurality of primary energy storage modules, the primary energy storage modules include a plurality of secondary energy storage modules, and the secondary energy storage modules include a plurality of tertiary energy storage modules. The specific composition of each stage of energy storage module is the same as that of the previous embodiment, and is not described herein again. The energy storage components 3 to iv may also include only one primary energy storage module, and the primary energy storage module is formed by connecting a plurality of battery cells in series and/or in parallel. The voltage of the primary energy storage module is any one of 80V, 100V, 120V, 200V, 220V, 240V, 260V and 280V.

The output component 13-IV includes an AC device interface 19-IV. The ac device interface 19-iv may output dc and ac power. The effective voltage value of the ac power output by the ac equipment interface 19-iv is 120VAC or 240VAC. The output means 13-IV further comprise a USB interface 17-IV. The output component 13-iv may optionally also comprise a dc device interface. The number of the direct current equipment interfaces is one or more. The voltage output by the plurality of direct current equipment interfaces is the same or different. The voltage output by the direct current equipment interface is one or more of 20V, 40V, 60V, 80V, 100V and 120V.

The power transmission device 1-IV further comprises a charging interface 21-IV. The electric energy transmission device 1-IV introduces an external power supply into the electric energy transmission device 1-IV through the charging interface 21-IV to charge the energy storage component 3-IV. Of course, the energy storage component 3-IV can also be detached from the electric energy transmission device 1-IV and charged by other charging equipment. The charging interfaces 21-iv may be solar charging interfaces, may be solar charging interfaces of 12V, 24V, 48V, and the like, or vehicle-mounted cigarette lighter interfaces, and may be 12V vehicle-mounted cigarette lighter interfaces or 24V vehicle-mounted cigarette lighter interfaces. At this time, the switching component 15-iv further includes a charging management module for adjusting the voltage input by the charging interface 21-iv to make it suitable for charging the energy storage component 3-iv. Meanwhile, the charging management circuit also manages the charging process of the energy storage components 3-IV, such as charging at what current, when the charging is cut off, and the like.

The power transfer device 1-IV also includes an audio processing circuit 22-IV. The audio processing circuit 22-iv may receive and play an external audio signal. The external audio signal may be at least one of a radio signal and an MP3 signal. The audio processing circuit 22-iv may acquire the audio signal from the outside in a wireless manner or acquire the signal from the outside in a wired manner. Taking the MP3 signal as an example, when the MP3 signal is obtained from the outside in a wireless manner, the audio processing circuit 22-iv further includes a wireless transmission module, which may be a bluetooth module, a wifi module, or the like; when the MP3 signal is obtained from the outside in a wired manner, the audio processing circuit 22-iv further includes a USB interface circuit, and the MP3 signal is obtained from the outside through a USB interface. When the audio processing circuit 22-IV receives radio signals, the audio processing circuit 22-IV further includes an antenna through which the radio signals present in the environment are received. The audio processing circuit 22-IV is electrically connected with the switching component 15-IV, so that electric energy of the energy storage component 3-IV is obtained.

The audio processing circuit 22-IV may be designed integrally with the power transmission device 1-IV or may be designed as a detachable module for detachable mounting on the power transmission device 1-IV. When the module is a detachable module, the electric energy transmission device 1-IV and the audio processing circuit 22-IV are respectively provided with interfaces which can be matched with each other, so that the audio processing circuit 22-IV can obtain electric energy and/or signal transmission from the electric energy transmission device 1-IV.

The power transfer device 1-IV may further include a projector circuit 24-IV. The projector circuit 24-iv includes a wireless transmission module through which a video signal is acquired from the outside. The projector circuit 24-IV is electrically connected with the switching component 15-IV, so that electric energy of the energy storage component 3-IV is obtained. The projector circuit 24-IV is matched with the audio processing circuit 22-IV, so that the audio signal and the video signal obtained from the outside are synchronously transmitted to the user, and the effect of home theater is achieved. The projector circuit 24-iv also includes a remote control signal receiving port for receiving a remote control signal.

The projector circuit 24-IV may be integrated with the power transfer device 1-IV or may be detachable with respect to the power transfer device 1-IV. When the power transmission device is a detachable module, the power transmission device 1-IV and the projector circuit 24-IV are respectively provided with interfaces which can be matched with each other, so that the projector circuit 24-IV can obtain power and/or signal transmission from the power transmission device 1-IV.

The audio processing circuit 22-iv and the projector circuit 24-iv may not include a wireless transmission module. In this case, the power transmission device 1-iv further includes a signal transmission interface. External audio signals and video signals are transmitted to the audio processing circuit 22-IV and the projector circuit 24-IV through the signal transmission interface. The signal transmission interface to the audio processing circuit 22-iv may be a USB interface. The signal transmission interface connected to the projector circuits 24-iv may be at least one of a USB interface, an HDMI interface, a VGA-PC interface, and the like.

The audio processing circuit 22-IV and the projector circuit 24-IV may not include a wireless transmission module. In this case, the wireless transmission module is provided on the electric power transmission device 1-iv. External audio signals and video signals are transmitted to the audio processing circuit 22-IV and the projector circuit 24-IV through the wireless transmission module arranged on the electric energy transmission device 1-IV.

Embodiments of the fifth inventive concept of the present invention are described below with reference to fig. 1-v through 10-v.

Referring to fig. 1-v to 5-v, the present disclosure discloses a multi-voltage output battery pack 30-v, the battery pack 30-v including at least two battery cells 2-v, each battery cell 2-v having a positive terminal 6' and a negative terminal 6; the battery pack 30-v further includes a voltage converting device 8-v, the voltage converting device 8-v including an input terminal 10-v electrically connected to the at least two battery cells 2-v and an output terminal 12-v for outputting a voltage, the input terminal 10-v including at least two sets of electrode contacts (not shown) corresponding in number to the battery cells 2-v, each set of electrode contacts including a positive electrode contact electrically connected to the positive terminal 6' -v and a negative electrode contact electrically connected to the negative terminal 6-v, the voltage converting device 8-v combining the at least two battery cells 2-v in series and/or in parallel so that the output terminal 12-v outputs a different voltage value.

In the embodiment of the invention, by utilizing the principles that the voltage at two parallel ends is unchanged, the output current is increased, the series voltage is increased and the output current is unchanged, and by changing the connecting lines between the electrode contacts and the output end 12-V in the voltage conversion device 8-V, a certain number of battery units 2-V are connected in series and/or in parallel in different modes so as to enable the battery pack 30-V to output different voltage values.

For example, the input terminal 10-v of the voltage converting device 8-v comprises a sets of electrodes, each set of electrodes corresponding to a set of electrode contacts (i.e. one positive electrode and one negative electrode), i.e. a sets of electrode contacts, wherein b sets of electrode contacts are connected in parallel, and a/b sets of electrode contacts are connected in series, wherein b is a positive divisor of a. as a further improvement of the present invention, the number of the a electrode groups, i.e. the corresponding battery cells 2-v, is a, where a is an even number, mainly to improve the utilization rate of the battery cells 2-v, and the service life of the battery cells 2-v is approximately 500 times of charge and discharge, and if the number of the battery cells 2-v is odd and even number of the battery cells are used in series and/or parallel, one battery cell 2-v will be idle, which affects the service life of the entire battery pack 30-v. Of course, if cells 2-V are odd, it is also possible when the number is 9, 15, 21, etc. in combination.

Taking a equal to 6 as an example, the specific structures of the battery cells 2-v and the voltage converting devices 8-v when the number of the battery cells 2-v in the battery pack 30-v is 6, and how to change the serial and/or parallel connection of the 6 battery cells by changing the connection between the electrode contacts of the 6 groups of the voltage converting devices 8-v and the connection lines thereof with the output terminal 12, thereby outputting several different voltage values will be described in detail below.

Referring to fig. 1-v through 2-v, there are shown a left side view, a front view, and an internal wiring diagram, respectively, of a battery pack 30-v including 6 battery cells 2-v in a preferred embodiment of the present invention. Referring first to fig. 2-v, a battery pack 30-v has a housing 4-v, which is partitioned into 6 side-by-side compartments, each of which houses one battery cell 2-v. For convenience of description, the arrangement direction of the battery cells 2-v in fig. 2-v is defined as a longitudinal direction, and the 6 battery cells 2-v are arranged in a line from left to right. Of course, the arrangement of the 6 battery cells 2-v in the housing 4-v may be in other arrangements, such as two rows and three columns or three columns and two rows, and accordingly, there may be other variations of the compartments in the housing 4-v.

It is noted that each battery unit 2-v may be a single minimum energy unit battery or may be formed by connecting a plurality of minimum energy unit batteries in series, i.e. a concept of "battery pack" in a general sense. Meanwhile, each battery cell 2-v may itself have a case that integrally encloses the battery therein, such as the case of a battery pack; it is also possible to have no casing but simply a simple stacking and combining of the cells therein. The individual cells may be nickel cadmium/nickel metal hydride cells with a nominal voltage of 1.2 volts or lithium cells with a nominal voltage of 3.6 volts. Since the energy density of the lithium battery is about three times that of the nickel-cadmium battery, and is smaller and lighter than the nickel-cadmium battery; in addition, because the lithium battery has good discharge efficiency, the lithium battery can discharge even in a relatively low-temperature environment, and can obtain stable voltage in a wider temperature range; thus, in this embodiment, the individual cells are lithium ion cells and cells 2-V are lithium ion cells. Of course, in other embodiments, nickel-metal hydride or nickel-cadmium batteries may also be used.

Each cell 2-v contains the same number of cells and thus the output voltage of each cell 2-v is the same. In this embodiment, the voltage value of each battery unit 2-v is 20 v (each battery unit 2-v is formed by connecting 6 lithium batteries in series, and the actual maximum discharge voltage is 21.6 v), and may be 12 v (each battery unit 2-v is formed by connecting 4 lithium batteries in series, and the actual maximum discharge voltage is 14.4 v), or may be 3.6 v, or any other multiple of 3.6 v. In addition, when nickel-metal hydride or nickel-cadmium batteries are used, the voltage level of each cell 2-V is 1.2 volts or any multiple of 1.2 volts.

Referring to fig. 1-v and 2-v, each cell 2-v has a pair of electrode terminals, i.e., a positive terminal 6' -v is upwardly connected to a positive electrode of each cell 2-v, and a negative terminal 6-v is upwardly connected to a negative electrode of each cell 2-v. That is, a total of 6 positive terminals 6' -V and 6 negative terminals 6-V are drawn above the housing 4-V of the battery pack 30-V. Of course, the above-mentioned "upward" is relative to the arrangement position of the battery cells 2-v in the drawing, and when the relative position of the battery cells 2-v is changed, the positions of the electrode terminals may be changed accordingly. The electrode terminals may be provided in the form of plugs that are led out of the casing 4-v of the battery pack 30-v, or alternatively, may be receptacles, or may be other types of ports.

Referring to fig. 4-v and 5-v, there are shown a schematic view of a voltage conversion device 8-v and an assembly view of the voltage conversion device 8-v and a housing 4-v of a battery pack 30-v, respectively, according to the present invention. The voltage conversion device 8-V comprises an input end 10-V and an output end 12-V, the input end 10-V is provided with 6 groups of electrode contacts corresponding to the 6 groups of electrode terminals, and each group of electrode contacts comprises a positive electrode contact electrically connected with a positive electrode terminal and a negative electrode contact electrically connected with a negative electrode terminal. The arrangement of the electrode contacts on the voltage converting device 8-v is the same as the arrangement of the electrode terminals on the housing 4-v, and in order to prevent the positive and negative terminals of the electrode contacts from being incorrectly connected, the corresponding parts of the housing 4-v and the voltage converting device 8-v are provided with positive and negative pole marks (not shown in the figure).

In this embodiment, the voltage converting device 8-V is configured as a cover of the housing of the battery pack 30-V, with the cover having electrode contacts on one side facing the housing 4-V and ports on the other side for the output terminals 12-V. The cover may be pivotally attached to the housing 4-V of the battery pack 30-V by a pivot shaft or otherwise movably attached to the housing 4-V, or may be separate from the housing 4-V and overlie the housing 4-V as desired. When such a cover plate is placed over the case 4-v, the electrode contacts on the lower side of the cover plate are electrically connected to the electrode terminals on the upper side of the case 4-v in a one-to-one correspondence.

Of course, the form of the upper and lower connection is not limited, and, for example, when the electrode terminals are located at the side of the case 4-v of the battery pack 30-v, the voltage conversion device 8-v is electrically connected to the case 4-v at the side thereof, accordingly. For example, in the embodiment, the electrode terminal is a plug protruding out of the plane of the housing 4-v, and the electrode contact is a socket recessed inward, and when connection is required, the input terminal 10-v of the voltage conversion device 8-v is aligned with the housing 4-v, so that the plug is inserted into the socket, and the electrode contact and the electrode terminal are electrically connected.

Of course, the positions of the plug and the jack may be changed, or other ways of electrically connecting the electrode contact and the electrode terminal may be easily conceived by those skilled in the art, which are not listed here.

In addition, the voltage converting device 8-v is not limited to the form of a cover plate, and other modifications can be easily conceived by those skilled in the art, and will not be described in detail herein.

In this embodiment, the voltage conversion device 8-v connects the electrode contacts of each group in series and/or in parallel in different manners by changing the connection lines between the electrode contacts of each group and between the electrode contacts and the output terminal, so that the battery cells 2-v are connected in series and/or in parallel by connecting the electrode contacts and the electrode terminals, and finally the battery pack 30-v outputs different voltage values. Four connection schemes of the voltage conversion devices 8-V that can output different voltage values from the 6 battery cells 4 are listed below.

Fig. 6-v shows a first embodiment of the internal wiring of the voltage converting device 8-v of the present invention. In the present embodiment, b =6, i.e., 6 sets of electrode contacts are connected in parallel, and 1 set of electrode contacts are connected in series. That is, the positive pole (16 ', 18', 20', 22', 24', 26 ') of each set of electrode contacts is connected to the positive pole 12' -V of the output, and the negative pole (16, 18, 20, 22, 24, 26) of each set of electrode contacts is connected to the negative pole 12-V of the output. Thus, the battery pack 30-V formed by the 6 20-volt battery cells 2-V and the voltage conversion device 8-V outputs a 20-volt voltage value, and the output terminal 12-V of the battery pack 30-V can be electrically connected to a conventional 20-volt rated cordless power tool such as a sander, a swing machine, and a gun drill.

Fig. 7-v shows a second embodiment of the internal wiring of the voltage converting device 8-v of the present invention. In the present embodiment, b =3, that is, 3 sets of electrode contacts are connected in parallel, and 2 sets of electrode contacts are connected in series. For convenience of description, the electrode contacts in the drawings are named as the 1 st to 6 th groups of electrode contacts in order from left to right. Wherein, the anode 16' -V of the 1 st group of electrode contacts is connected with the cathode 18-V of the 2 nd group of electrode contacts, the cathode 16-V of the 1 st group of electrode contacts is connected with the cathode 12-V of the output end, and the anode 18' -V of the 2 nd group of electrode contacts is connected with the anode 12' -V of the output end; the positive pole 20' -V of the 3 rd group of electrode contacts is connected with the negative pole 22-V of the 4 th group of electrode contacts, the negative pole 20-V of the 3 rd group of electrode contacts is connected with the negative pole 12-V of the output end, and the positive pole 22' -V of the 4 th group of electrode contacts is connected with the positive pole 12-V ' of the output end; the positive electrode 24' -V of the 5 th set of electrode contacts is connected to the negative electrode 26-V of the 6 th set of electrode contacts, the negative electrode 24-V of the 5 th set of electrode contacts is connected to the negative electrode 12-V of the output terminal, and the positive electrode 26' -V of the 6 th set of electrode contacts is connected to the positive electrode 12-V ' of the output terminal. Thus, a battery pack 30-V formed by 6 20-volt battery cells 2-V and the voltage conversion device 8-V thus provided can output a voltage value of 40 volts, and an output terminal 12-V of the battery pack 30-V can be electrically connected to a cordless power tool having a rated voltage of 40 volts, such as a chain saw or a pruning shear.

Fig. 8-v shows a third embodiment of the internal wiring of the voltage converting device 8-v of the present invention. In the present embodiment, b =2, that is, 2 sets of electrode contacts are connected in parallel, and 3 sets of electrode contacts are connected in series. For convenience of description, the electrode contacts in the drawings are also named as the 1 st to 6 th groups of electrode contacts 26-V in order from left to right. Wherein, the positive pole 16 '-V of the 1 st group of electrode contacts is connected with the negative pole 18-V of the 2 nd group of electrode contacts, the positive pole 18' -V of the 2 nd group of electrode contacts is connected with the negative pole 20-V of the 3 rd group of electrode contacts, the negative pole 16-V of the 1 st group of electrode contacts is connected with the negative pole 12-V of the output end, the positive pole 20 '-V of the 3 rd group of electrode contacts is connected with the positive pole 12' -V of the output end; the positive pole 22 '-V of the 4 th group of electrode contacts is connected with the negative pole 24-V of the 5 th group of electrode contacts, the positive pole 24' -V of the 5 th group of electrode contacts is connected with the negative pole 26-V of the 6 th group of electrode contacts, the negative pole 22-V of the 4 th group of electrode contacts is connected with the negative pole 12-V of the output end, and the positive pole 26 '-V of the 6 th group of electrode contacts is connected with the positive pole 12' -V of the output end. Thus, a battery pack 30-V formed by 6 20-volt battery cells 2-V and the voltage converting device 8-V thus arranged can output a voltage value of 60 volts, and the output terminal 12-V of the battery pack 30-V can be electrically connected to an electric tool such as a lawn mower.

Fig. 9-v shows a fourth embodiment of the internal wiring of the voltage converting device 8-v of the present invention. In the present embodiment, b =1, i.e., 1 set of electrode contacts are connected in parallel and 6 sets of electrode contacts are connected in series. For convenience of description, the electrode contacts in the drawings are also named as the 1 st to 6 th groups of electrode contacts 26-V in order from left to right. Wherein, the negative pole 16-V of the 1 st group of electrode contacts is connected with the negative pole 12-V of the output end, the positive pole 16' -V of the 1 st group of electrode contacts is connected with the negative pole 18-V of the 2 nd group of electrode contacts, the positive pole 18' -V of the 2 nd group of electrode contacts is connected with the negative pole 20-V of the 3 rd group of electrode contacts, the positive pole 20' -V of the 3 rd group of electrode contacts is connected with the negative pole 22-V of the 4 th group of electrode contacts, the positive pole 22' -V of the 4 th group of electrode contacts is connected with the negative pole 24-V of the 5 th group of electrode contacts, the positive pole 24' -V of the 5 th group of electrode contacts is connected with the negative pole of the 6 th group of electrode contacts 26-V, and the positive pole 26' -V of the 6 th group of electrode contacts is connected with the positive pole 12' -V of the output end. Thus, the battery pack 30-V formed by the 6 20-V battery units 2-V and the voltage conversion devices 8-V arranged in this way can output a voltage value of 120V, and the battery pack 30-V can provide power for the working platform of the series electric tool.

In summary, the battery pack 30-v of the present invention can output different voltage values by connecting the same number of battery cells 2-v in series and/or in parallel in different manners by changing the interconnections between the electrode contacts of the voltage conversion device 8-v, and in this embodiment, different voltage outputs can be realized by using one cover plate. Of course, in other embodiments, different voltage outputs may be achieved by replacing different voltage converting devices 8-v. For example, the voltage conversion device 8-v is made into a patch type, and the electrode contact on each patch has a specific connection mode, so that the battery pack can output a specific voltage value, and when different voltages need to be output, only different patches need to be replaced. For example, in order to output a voltage of 20 volts, the terminal strips are electrically connected to the electrode terminals on the housing 4-v by means of terminal strips which, as in the first embodiment, connect the electrode contacts; to output a voltage of 40 v, the interposer connected to each electrode contact is used as in the second embodiment.

As can be seen from the above four embodiments, when the number of battery cells 2-v in the battery pack 30-v is 6, 4 different output voltages can be obtained by connecting the voltage conversion devices 8-v in series and/or in parallel. Assuming that the output voltage value of 1 battery cell 2-v is x, the battery pack 30-v in the first embodiment outputs x, the battery pack 30-v in the second embodiment outputs 2x, the battery pack 30-v in the third embodiment outputs 3x, and the battery pack 30-v in the fourth embodiment outputs 6x. For example, if the output voltage of the single battery cell 2-v is 20 volts, 4 voltages of 20 volts, 40 volts, 60 volts, and 120 volts can be obtained by connecting the voltage conversion devices 8-v in series and/or in parallel; whereas if the output voltage of a single battery unit 2-v is 12 volts, 4 voltages of 12 volts, 24 volts, 36 volts and 72 volts are obtained by the above-mentioned series and/or parallel connection. Of course, as mentioned above, the output voltage of the single battery unit 2-v may be 1.2 v or any other multiple of 3.6 v, and by connecting with the voltage conversion device 8-v of the different embodiments, 4 voltage values can be obtained, and the user can select the battery unit 2-v with the corresponding output voltage value according to the requirement.

Of course, not only the voltage value of the individual cells 2-V forming the battery pack 30-V may be varied, but also the number of cells 2-V used to form the battery pack 30-V. In this embodiment, the number of the battery cells 2-v is 6, and the corresponding electrode contacts of the voltage conversion devices 8-v have 4 series and/or parallel connection modes (the number of parallel connection groups is 1, 2, 3, 6 respectively), and can output 4 different voltage values of 6x, 3x, 2x and x; of course, the number of the battery cells 2-v may also be 8, and the corresponding voltage conversion devices 8-v may also have 4 series and/or parallel connection modes at their electrode contacts, the number of the parallel connection groups is 1, 2, 4, and 8, respectively, and 4 different voltage values of 8x, 4x, 2x, and x may be output. That is, the number b of groups of electrode contacts that can be connected in parallel is a positive divisor of the number a of the battery cells 2 to v, and the number c of voltage values that can be output is a positive divisor of a. When the number of the battery cells 2-V forming the battery pack 30-V is 2, 2 different voltage values may be outputted through different connection lines of the electrode contacts in the voltage conversion device 8-V; when the number of the battery cells 2-v forming the battery pack 30-v is 12, 6 different voltage values may be output; and so on. Referring to fig. 10-v, the present invention also discloses a power tool system including such a battery pack 30-v, which includes a power tool, and a battery pack 30-v with multiple voltage outputs as described above. In the present embodiment, the electric power tool is a swing machine 28-V, and a battery pack 30-V including a plurality of battery cells (not shown) and a voltage conversion device (not shown) is shown, and the battery pack 30-V is detachably and electrically connected to the swing machine 28-V. The method of connecting the battery pack 30-v to the swing machine 28-v is: a sliding connection method, in which a slide groove (not shown) formed on the swing machine 28-v is engaged with a slide rail (not shown) formed on the battery pack 30-v, so that the swing machine 28-v is slidably connected to the battery pack 30-v. Of course, an insertion connection method may be used in which the swing machine 28-v forms a hollow receiving portion into which an insertion portion formed at the output end of the battery pack 30-v is inserted.

Embodiments of the sixth inventive concept of the present invention are described below with reference to fig. 1-vi to 4-vi.

Referring to fig. 1-vi to 4-vi, the battery pack support structure 100-vi according to an embodiment of the present invention includes a support body 110-vi and a control device, wherein a battery pack clamp is disposed on the support body 110-vi, and the battery pack 200-vi is clamped by the battery pack clamp, such that the battery pack 200-vi is conveniently fixed, and the occurrence of the phenomena of wire breakage and short circuit is reduced. The battery pack clamp is provided with a positive electrode outgoing line P1 and a negative electrode outgoing line P2, the positive electrode outgoing line P1 and the negative electrode outgoing line P2 of the battery pack clamp are respectively electrically connected with the control device, electric energy in the battery pack 200-VI is output through the positive electrode outgoing line P1 and the negative electrode outgoing line P2 of the battery pack clamp, and the control device controls the working condition of the battery pack 200-VI in the battery pack clamping part 111-VI. The battery pack clamp comprises at least two battery pack clamping parts 111-VI, and the battery pack 200-VI is arranged in the battery pack clamping parts 111-VI. The control device is arranged in the bracket body 110-VI, is electrically connected with the battery pack 200-VI in the battery pack clamping part 111-VI through the battery pack clamp, and controls the battery pack 200-VI to output voltage.

The battery pack clamping portions 111-VI may be clamps, slots, or grooves or the like that enable the battery packs 200-VI to be mounted. One battery pack 200-vi may be mounted in each battery pack holding portion 111-vi, or two or more battery packs 200-vi may be mounted, and therefore, the number of the battery packs 200-vi should be at least two. The battery packs 200-VI are arranged in the battery pack clamping parts 111-VI, and the control device controls at least two battery packs 200-VI to be connected in series or in parallel so as to meet the use requirements of different operators on power supply of different electrical appliances 300-VI. The battery pack support structure 100-VI is a multifunctional support, when the battery pack support structure 100-VI is used, the battery pack 200-VI is connected in series or in parallel through at least two battery pack clamping parts 111-VI connected in series of the battery pack clamp, and the battery pack 200-VI is controlled to output voltage through a control device.

At least two of the battery pack holding portions 111-vi may be connected in series or in parallel. Meanwhile, the battery packs 200-VI after series connection or parallel connection can drive larger loads, so that the battery packs 200-VI after series connection or parallel connection can be applied to the electric appliances 300-VI which need to be driven by increased voltage, can bear larger loads and improve the working efficiency. The control device controls the series output voltage of the battery packs 200-VI, so that the operation is convenient and quick, the time is saved, and the working efficiency of operators is improved.

Furthermore, an output portion 112-VI used for outputting electric energy of the battery pack 200-VI is further arranged on the support body 110-VI, one end of the output portion 112-VI is electrically connected with the positive electrode outgoing line P1 and the negative electrode outgoing line P2, and the other end of the output portion 112-VI is connected with an electric appliance 300-VI, so that the control device is electrically connected with the electric appliance 300-VI. Furthermore, the number of the output parts 112-VI is at least two, and the output parts 112-VI can comprise two-phase jack connectors and/or three-phase jack connectors so as to be connected with different types of electrical appliances 300-VI and meet the use requirements of the different types of electrical appliances 300-VI. The control device of the battery pack support structure 100-VI controls the electric energy output of the battery pack 200-VI, the connecting plug of the electric appliance 300-VI is connected to the output part 112-VI of the support body 110-VI, and the electric energy output is realized through the output part 112-VI to provide power for the electric appliance 300-VI. The invention provides more than one output part 112-VI so as to provide electric energy for different electric appliances.

Furthermore, the bracket body 110-VI is also provided with a conversion control member 120-VI, and the conversion control member 120-VI is electrically connected with the control device; the transfer control 120-vi is adapted to regulate the output voltage of the output 112-vi, thereby enabling the transfer control 120-vi to regulate the voltage output by the battery pack 200-vi in the battery pack clamp. The output voltage of output 112-vi is conveniently adjusted by switching control 120-vi to accommodate different electrical loads 300-vi. Still further, the switching control member 120-vi has at least two voltage steps, the switching control member 120-vi adjusts the output voltage of the output portion 112-vi through the at least two voltage steps, and there is a difference in voltage between the at least two voltage steps. Therefore, the difference exists between the output voltages of any two voltage gears so as to meet the use requirements of different users on different electric appliances 300-VI, and meanwhile, the range of the voltage/current output by the battery pack 200-VI in the battery pack clamping parts 111-VI connected in series or in parallel is wide, so that the selection of the users is facilitated.

The conversion control member 120-VI can be set as a manually operated conversion button, the output voltage of the output part 112-VI can be selectively adjusted through the conversion button, so that the voltage output is in different voltage gears, the voltage output of the battery pack 200-VI can be ensured to be in a controllable state, and an operator can select the output voltage of the output part 112-VI according to actual needs; of course, the switching control member 120-VI may also be configured as a shift switch, and the output voltage of the output portion 112-VI may be at different voltage levels by operating the shift switch, so that the output voltage of the battery pack 200-VI in the battery pack clamp may be adjusted. In this embodiment, the shift control 120-VI is a shift knob. The transition control member 120-vi is adapted to adjust a voltage step of the output voltage of the output portion 112-vi, and control the output voltage of the battery pack 200-vi in at least two battery pack clamping portions 111-vi connected in series or in parallel. In the invention, the conversion control member 120-VI has five voltage gears, and the voltages of the five voltage gears are different, so that the difference exists between the output voltages of any two voltage gears, thereby meeting the use requirements of different users on different electric appliances 300-VI and facilitating the selection of the users. The conversion control part 120-VI rotates to any voltage gear, the control device receives a signal of the voltage gear selected by the conversion control part 120-VI and controls the battery pack 200-VI in the at least two battery pack clamping parts 111-VI connected in series to output a voltage corresponding to the voltage gear, and therefore the output voltage of the output part 112-VI can be adjusted.

Currently, an operator generally uses a battery pack to power the electric device. When the power consumption of the electric equipment is large, an operator carries out series connection on the battery pack in a simple lead connection mode so as to ensure that the electric equipment can normally operate. However, need often switch connecting wire and adjust output voltage in order to satisfy the user demand of different electrical apparatus, this can lead to the connecting wire damaged, can arouse the short circuit when serious, simultaneously, operating personnel switches connecting wire repeatedly, and the process is loaded down with trivial details, influences efficiency, and the operating personnel of not being convenient for uses. According to the battery pack support structure 100-VI, the battery pack 200-VI is arranged in the battery pack clamping part 111-VI of the support body 110-VI, the battery pack clamping part 111-VI is electrically connected to the control device, the output of electric energy of the battery pack 200-VI is realized through the positive electrode outgoing line P1 and the negative electrode outgoing line P2 on the battery pack clamp, the simple connecting lead is replaced through the support body 110-VI and the control device, the phenomena of lead damage and short circuit are reduced, the quality is improved, the rapid switching of the output voltage of the battery pack support structure 100-VI is realized through the conversion control device 120-VI, the output voltage of the output part 112-VI is convenient to adjust, the operation is convenient and rapid, the efficiency of an operator is improved, the use safety of the battery pack 200-VI is ensured, and the use by the operator is convenient.

Referring to fig. 2-vi and 3-vi, as an embodiment, the control device includes a Microcontroller (MCU) electrically connected to the positive and negative lead wires P1 and P2; the microcontroller is adapted to control the output voltage of the battery pack 200-VI in the battery pack clamp. The battery pack 200-VI is arranged in the battery pack clamping parts 111-VI, at least two battery pack clamping parts 111-VI are connected in series or in parallel, two ends of the battery pack clamp, namely the head end and the tail end of at least two battery pack clamping parts 111-VI which are connected in series or in parallel, are respectively provided with a positive electrode outgoing line P1 and a negative electrode outgoing line P2, the positive electrode outgoing line P1 is connected in series to the microcontroller and is electrically connected to the output part 112-VI, the negative electrode outgoing line P2 is connected in series to the microcontroller and is electrically connected to the output part 112-VI, and the microcontroller controls the battery pack 200-VI in at least two battery pack clamping parts 111-VI to output voltage outwards.

Furthermore, the control device also comprises a gear detection module which is respectively and electrically connected with the microcontroller and the conversion control member 120-VI. The gear detection module is adapted to detect a voltage gear adjusted by the shift control 120-VI. The switching control member 120-vi is capable of adjusting the output voltage of the output portion 112-vi when rotated to any voltage gear. The gear detection module feeds the detected voltage gear back to the microcontroller, and the microcontroller controls the output voltage of the battery pack 200-VI in the battery pack clamp, so that the purpose of adjusting the output voltage of the output part 112-VI is achieved. An operator rotates the conversion control member 120-VI to one of the voltage gears according to actual use requirements, namely the voltage gear required to be output by the battery pack support structure 100-VI. The voltage gear adjusted by the conversion control part 120-VI is detected by the gear detection module, an output signal of the voltage gear is fed back to the microcontroller, and the output voltage of the battery pack 200-VI in the battery pack clamp adjusted by the microcontroller is used for adjusting the output voltage of the output part 112-VI.

As an implementation manner, the control device further includes a voltage detection module, and the voltage detection module is electrically connected to the positive outgoing line P1 and the microcontroller, respectively. The voltage detection module is suitable for detecting the voltage of the battery pack 200-VI in the battery pack clamp, when the voltage of the battery pack 200-VI in the battery pack clamp reaches a preset voltage value, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting the voltage, and the preset voltage value is determined according to the actual use working condition. The voltage detection module is electrically connected to the positive outgoing line P1 and the microcontroller respectively, and can detect the output voltage of the battery pack 200-VI in the battery pack clamp in real time. In order to prevent the over-discharge of the electric energy in the battery pack 200-VI, when the voltage of the battery pack 200-VI in the battery pack clamp is too low, namely the sum of the voltages of the battery pack 200-VI in the battery pack clamp is lower than a preset voltage value, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting the voltage outwards. The battery pack 200-VI is generally recycled, and when the electric energy in the battery pack 200-VI is too low or exhausted, the battery pack 200-VI needs to be charged; after the battery pack 200-VI is charged, the battery pack 200-VI is arranged in a battery pack clamping part 111-VI of the bracket body 110-VI to discharge, so that the normal work of an electric appliance 300-VI is ensured, but the over-discharge of the electric energy in the battery pack 200-VI can influence the service life of the battery pack 200-VI and influence the use performance of the battery pack 200-VI, so that the voltage in the battery pack 200-VI is ensured not to be too low. When the voltage sum of the battery pack 200-VI in the battery pack clamp is within a certain range, the microcontroller can only output voltage for controlling the battery pack 200-VI.

As an implementation manner, the control device further includes a current detection module and a sampling resistor R, the current detection module is electrically connected to the negative lead P2 and the microcontroller, respectively, and the sampling resistor R is electrically connected to the negative lead P2 and the current detection module, respectively. The sampling resistor R and the current detection module are suitable for detecting the output current of the battery pack 200-VI in the battery pack clamp, when the output current is higher than a preset current value, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting voltage, and the preset current value is determined according to the actual use working condition. When the current output of the battery pack 200-VI in the battery pack clamp is too high, the battery pack 200-VI can be damaged, the output current of the battery pack 200-VI in the battery pack clamp is detected through the current detection module, and then when the output current is higher than a preset current value, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting voltage. One end of the current detection module is connected in series to the microcontroller, the other end of the current detection module is connected in series with the sampling resistor R and is electrically connected to the negative electrode outgoing line P2 of the battery pack clamp, and the sampling resistor R can play a role in shunting and prevent the battery pack 200-VI from being damaged. When a battery pack 200-VI in the battery pack clamp outputs voltage, the current detection module detects the output current of the battery pack 200-VI, when the output current is higher than a preset current value, the current detection module feeds back a signal that the output current is too high to the microcontroller, and the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting the voltage; when the output current is lower than the preset current value, the current detection module feeds back a signal that the output current does not exceed the preset current value to the microcontroller, and the microcontroller controls the battery pack 200-VI in the battery pack clamp to output voltage.

As an implementation manner, the control device further comprises a temperature detection module, and the temperature detection module is electrically connected with the battery pack clamp and the microcontroller respectively. The battery pack clamp 111 is provided with a temperature detection line P3, and the battery pack clamping portion 111-VI is electrically connected with the temperature detection module through the temperature detection line P3 so as to detect the temperature of the battery pack 200-VI. The temperature detection module is suitable for detecting the temperature of the battery pack 200-VI in the battery pack clamp, and when the temperature of a certain battery pack 200-VI is higher than the preset temperature, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting voltage. The battery pack 200-VI is generally recycled, and when the electric energy in the battery pack 200-VI is too low or exhausted, the battery pack 200-VI needs to be charged; after the battery pack 200-VI is charged, the battery pack 200-VI is arranged in a battery pack clamping part 111-VI of the bracket body 110-VI to discharge, so that the normal work of the electric appliance 300-VI is ensured, but when the temperature of the battery pack 200-VI is over 45 ℃ during work, the service life of the battery pack 200-VI is influenced. When the temperature of a certain battery pack 200-VI in the battery pack clamp is higher than a preset temperature (for example, higher than 45 ℃), the temperature detection module detects that a signal with overhigh temperature is fed back to the microcontroller, and the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting voltage. As long as the temperature of one battery pack 200-VI in the battery pack clamp is overhigh, the microcontroller controls the battery pack 200-VI in the battery pack clamp to stop outputting voltage. Only when the temperature of all the battery packs 200-VI in the battery pack clamp is lower than the preset temperature, the microcontroller can control the output voltage of the battery packs 200-VI in the battery pack clamp.

As an implementation manner, referring to fig. 2-vi, in an embodiment of the present invention, the control device further includes a pulse width modulation module (PWM) electrically connected to the positive electrode lead wire P1, the output portion, and the microcontroller, respectively. The pulse width adjusting module is adapted to control the output voltage of the pulse width duty cycle adjustment output portion 112-VI. The conversion control part 120-VI adjusts the voltage gear, the gear detection module feeds the detected voltage gear back to the microcontroller, the microcontroller controls the pulse width adjustment module to adjust the output voltage of the output part 112-VI, and the output voltage is output by the output part 112-VI. When an operator supplies power to the electric appliance 300-VI through the battery pack support structure 100-VI, the gear detection module detects a voltage gear adjusted by the conversion control part 120-VI and feeds a voltage gear signal to the microcontroller, the microcontroller feeds an output voltage signal corresponding to the voltage gear signal to the pulse width adjusting module, the microcontroller controls the pulse width adjusting module to adjust the duty ratio of the pulse width, the output voltage of the output part 112-VI is adjusted, and then the output voltage of the battery pack 200-VI in the battery pack clamp is controlled, so that the purpose of adjusting the output voltage of the output part 112-VI is achieved, the use requirements of different users on different electric appliances 300-VI can be met, and the electric appliance 300-VI is convenient for the users to use.

The microcontroller controls the pulse width adjusting module to adjust the output voltage of the output part 112-VI, namely the output voltage of the battery pack 200-VI in the battery pack clamp. An operator rotates the conversion control member 120-VI to one of the voltage gears according to actual use requirements, namely the voltage gear required to be output by the battery pack support structure 100-VI. The voltage gear adjusted by the conversion control part 120-VI is detected by the gear detection module, the output signal of the voltage gear is fed back to the pulse width adjusting module by the microcontroller, and the microcontroller controls the pulse width adjusting module to adjust the duty ratio of the pulse width, so that the output voltage of the battery pack 200-VI in the battery pack clamp is adjusted.

Further, the at least two battery pack clamping portions 111-VI are connected in series, and the output voltage of the output portion 112-VI when the at least two battery pack clamping portions 111-VI are connected in series can be adjusted through the pulse width adjusting module. The battery packs 200-VI in the at least two battery pack clamping parts 111-VI are connected in series, and the output voltage of the battery packs 200-VI connected in series is adjusted through the pulse width adjusting module, so that the output voltage of the output part 112-VI is adjusted. The at least two battery pack clamping portions 111-VI are in series connection on the circuit, the at least two battery pack clamping portions 111-VI can be controlled by the control device to be connected in series, and the control device controls the electric energy output of the battery pack 200-VI in the at least two battery pack clamping portions 111-VI. In this embodiment, the number of the battery pack clamping portions 111-vi is three, the number of the corresponding battery packs 200-vi is also three, the three battery packs 200-vi are respectively installed in the battery pack clamping portions 111-vi, the three battery packs 200-vi are connected in series, and the pulse width adjusting module adjusts output voltages of the three battery packs 200-vi connected in series.

As an implementation manner, referring to fig. 3 to vi, in another embodiment of the present invention, the output voltage of at least two battery pack holding parts 111-vi is adjusted by controlling the at least two battery pack holding parts 111-vi to be connected in series or in parallel through a relay, thereby adjusting the voltage of the output part 112-vi. The control device further comprises at least two relays, two ends of coils of the at least two relays are electrically connected with the microcontroller and a circuit power supply respectively, contacts of the at least two relays are electrically connected to the at least two battery pack clamping parts 111-VI respectively, the switching control part 120-VI adjusts voltage gears and feeds voltage gear signals back to the microcontroller, and the microcontroller controls the relays to be switched off or switched on to enable the at least two battery pack clamping parts 111-VI to be connected in parallel or connected in series.

The number of the battery pack clamping parts 111-VI corresponds to the number of the relays, namely the number of the battery pack clamping parts 111-VI is n, and the number of the relays is (n-1) multiplied by 3. When the conversion control part 120-VI is adjusted to a required voltage gear, the gear detection module detects the voltage gear and feeds a voltage gear signal back to the microcontroller, and the microcontroller controls (n-1) x 3 relays to be disconnected or closed respectively, so that the n battery pack clamping parts 111-VI are connected in series or in parallel, and then the battery packs 200-VI in the n battery pack clamping parts 111-VI are connected in series or in parallel to output voltage, and the use requirements of different electric appliances 300-VI are met. When the number of the battery pack clamping parts 111-VI is 2, the number of the relays is 3; when the number of the battery pack clamping parts 111-VI is 3, the number of the relays is 6; when the number of the battery pack clamping parts 111-VI is 4, the number of the relays is 9; and so on.

Specifically, in this embodiment, the number of the battery pack holding portions 111-vi is three, and the first battery pack holding portion A1, the second battery pack holding portion A2, and the third battery pack holding portion A3 are respectively provided, wherein the positive electrode of the first battery pack holding portion A1 is electrically connected to the positive electrode lead wire P1, and the negative electrode of the third battery pack holding portion A3 is electrically connected to the negative electrode lead wire P2. The positive electrode lead wire P1 and the negative electrode lead wire P2 output voltage of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 which are connected in parallel or in series through the output part 112-VI.

The number of relays is six relays, is first relay K1, second relay K2, third relay K3, fourth relay K4, fifth relay K5 and sixth relay K6 respectively. The two ends of the coils of the six relays are respectively electrically connected to the circuit power supply and the microcontroller, the relays are supplied with electric energy through the circuit power supply, and the microcontroller controls the relays to be opened or closed. Two contacts of the first relay K1 are respectively and electrically connected with the negative electrode of the first battery pack clamping part A1 and the positive electrode of the second battery pack clamping part A2; two contacts of the second relay K2 are respectively and electrically connected with the negative electrode of the second battery pack clamping part A2 and the positive electrode of the third battery pack clamping part A3; two contacts of the third relay K3 are respectively and electrically connected with the positive electrode of the first battery pack clamping part A1 and the positive electrode of the second battery pack clamping part A2; two contacts of the fourth relay K4 are respectively and electrically connected with the positive electrode of the first battery pack clamping part A1 and the positive electrode of the third battery pack clamping part A3; two contacts of the fifth relay K5 are respectively and electrically connected with the negative electrode of the second battery pack clamping part A2 and the negative electrode of the third battery pack clamping part A3; two contacts of the sixth relay K6 are electrically connected to the negative electrode of the first battery pack holding portion A1 and the negative electrode of the third battery pack holding portion A3, respectively.

The conversion control part 120-VI adjusts to required voltage gear, the gear detection module detects required voltage gear and feeds back voltage gear signal to the microcontroller, the microcontroller controls the first relay K1 and the second relay K2 to be closed, controls the third relay K3, the fourth relay K4, the fifth relay K5 and the sixth relay K6 to be disconnected, and then realizes the series connection of the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3. The conversion control part 120-VI adjusts to required voltage gear, the gear detection module detects required voltage gear and feeds back voltage gear signals to the microcontroller, the microcontroller controls the first relay K1 and the second relay K2 to be disconnected, the third relay K3, the fourth relay K4, the fifth relay K5 and the sixth relay K6 to be closed, and then the parallel connection of the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 is realized.

Microcontroller detects the voltage gear that conversion control piece 120-VI adjusted through the gear detection module, it is different according to the gear, microcontroller realizes first battery package holder A1 through the disconnection or the closure of control first relay K1, second relay K2, third relay K3, fourth relay K4, fifth relay K5 and sixth relay K6, the series connection or the parallel connection of second battery package holder A2 and third battery package holder A3, and then realize that output 112-VI can export different voltages, reach output voltage adjustable purpose. Of course, the microcontroller can also control one or more relays to be switched on or switched off, so that the output voltage of the battery pack 200-VI in one battery pack clamping part 111-VI and the output voltage of the battery packs 200-VI in two battery pack clamping parts 111-VI in series or in parallel can be realized. For example, the microcontroller controls the sixth relay K6 to be closed, the first relay K1, the second relay K2, the third relay K3, the fourth relay K4 and the fifth relay K5 to be opened, and only the battery pack 200-VI in the first battery pack clamping part A1 outputs voltage at the moment; the microcontroller controls the third relay K3, the fifth relay K5 and the sixth relay K6 to be closed, the first relay K1, the second relay K2 and the fourth relay K4 to be opened, and at the moment, the battery pack 200-VI in the first battery pack clamping part A1 and the battery pack 200-VI in the second battery pack clamping part A2 are connected in parallel to output voltage, and the like.

Further, the microcontroller detects the voltage of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 through the voltage detection module, and prevents the voltage of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 from being over-discharged. When the sum of the voltage of the battery packs 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 is 0.05-0.15 of the sum of the initial voltages of all the battery packs 200-VI, the microcontroller controls the first relay K1, the second relay K2, the third relay K3, the fourth relay K4, the fifth relay K5 and the sixth relay K6 to be disconnected, and the external output is stopped.

Furthermore, the microcontroller detects the temperature of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 through the temperature detection module, so that the temperature of the battery pack 200-VI is prevented from being too high. When the working temperature of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 is over-high and is higher than 45 ℃, the temperature detection module feeds back the over-high temperature signal to the microcontroller, and the microcontroller controls the first relay K1, the second relay K2, the third relay K3, the fourth relay K4, the fifth relay K5 and the sixth relay K6 to be disconnected and stop outputting externally.

Still further, microcontroller passes through the output current of battery package 200-VI in current detection module detection first battery package clamping part A1, second battery package clamping part A2 and third battery package clamping part A3, prevents that output current is too high to damage battery package 200-VI. When the output current of the battery pack 200-VI in the first battery pack clamping part A1, the second battery pack clamping part A2 and the third battery pack clamping part A3 is higher than a preset current value, the current detection module feeds back a signal that the output current is too high to the microcontroller, and the microcontroller controls the disconnection of the first relay K1, the second relay K2, the third relay K3, the fourth relay K4, the fifth relay K5 and the sixth relay K6 to stop the external output.

As an embodiment, referring to fig. 4-vi, in another embodiment of the present invention, the control device includes a shift lever, the shift lever is controlled by the switching control member 120-vi, and the shift lever is respectively connected to at least two of the battery pack holders 111-vi; the conversion control member 120-VI adjusts voltage gears, and the conversion control member 120-VI stirs the deflector rod to enable the at least two battery pack clamping parts 111-VI to be connected in parallel or in series. In the embodiment, the at least two battery pack clamping parts 111-VI can realize series connection or parallel connection by adjusting the conversion control part 120-VI and then shifting the shifting lever, a microcontroller and a relay are not needed for control, the structure is simple, and the operation of an operator is convenient.

The number of the battery pack clamping portions 111-VI is m, each battery pack clamping portion 111-VI has two internal ports, and correspondingly, the number of the internal ports of the m battery pack clamping portions 111-VI is 2 m. When the conversion control member 120-VI is adjusted to a required voltage gear, the conversion control member 120-VI shifts the shifting lever, so that the shifting lever adjusts the position of the connecting sheet at the inner port of each battery pack clamping part 111-VI, and serial connection or parallel connection is realized. When the deflector rod is pulled to enable the deflector rod to be located at the first position, the internal ports of the positive electrodes of the m battery pack clamping portions 111-VI are connected, the internal ports of the negative electrodes of the m battery pack clamping portions 111-VI are connected, and at the moment, the m battery pack clamping portions 111-VI are connected in parallel. When the deflector rod is moved to enable the deflector rod to be located at the second position, the internal ports of the positive electrodes of the m battery pack clamping portions 111-VI are sequentially connected with the internal ports of the negative electrodes, and at the moment, the m battery pack clamping portions 111-VI are connected in series.

Specifically, the number of the battery pack clamping portions is three, namely a battery pack clamping portion one B1, a battery pack clamping portion two B2 and a battery pack clamping portion three B3. The negative electrode of the first battery pack clamping part B1 is electrically connected with the first internal port a, and the positive electrode of the first battery pack clamping part B1 is electrically connected with the second internal port B; the negative electrode of the battery pack clamping part II B2 is electrically connected with the internal port III, and the positive electrode of the battery pack clamping part II B2 is electrically connected with the internal port IV; the negative electrode of the battery pack clamping portion III B3 is electrically connected with the internal port five e, and the positive electrode of the battery pack clamping portion III B3 is electrically connected with the internal port six f. The first internal port a is electrically connected to the negative lead wire P2, and the sixth internal port f is electrically connected to the positive lead wire P1; the positive electrode lead wire P1 and the negative electrode lead wire P2 output voltage of the battery pack 200-VI in the battery pack clamping part I B1, the battery pack clamping part II B2 and the battery pack clamping part III B3 which are connected in parallel or in series through the output part 112-VI.

The conversion control element 120-VI is adjusted to a required voltage gear, the conversion control element 120-VI stirs the deflector rod to enable the deflector rod to be in a first position, as shown in a solid line state in fig. 4-VI, the first internal port a and the third internal port c are connected with the fifth internal port e, the second internal port B and the fourth internal port d are connected with the sixth internal port f, and at the moment, the first battery pack clamping part B1, the second battery pack clamping part B2 and the third battery pack clamping part B3 are connected in parallel; the conversion control element shifts the shift lever to enable the shift lever to be in a second position, as shown in a dotted line state in fig. 4-vi, the internal port two B is connected with the internal port three c, the internal port four d is connected with the internal port five e, and the battery pack clamping part one B1, the battery pack clamping part two B2 and the battery pack clamping part three B3 are connected in series to achieve the purpose of adjusting output voltage. And the empty port alpha and the empty port beta are suspended and are not connected with each other.

Of course, the deflector rod can also control connection of a plurality of internal ports at different positions, so that output voltage of the battery pack 200-VI in one battery pack clamping part 111-VI and output voltage of the battery packs 200-VI in two battery pack clamping parts 111-VI in series or in parallel can be realized. For example, the first internal port a is connected to the fifth internal port e, the second internal port B is connected to the sixth internal port f, and the first battery pack holding portion B1 and the third battery pack holding portion B3 output voltages in parallel, and so on.

As an embodiment, the output part 112-vi includes a dc output terminal and an ac output terminal, and the dc output terminal is electrically connected to the positive and negative lead wires P1 and P2 of the battery pack holder. The direct current output end is used for outputting direct current voltage, and the alternating current output end is used for outputting alternating current voltage, so that the use requirements of different users on different electrical appliances 300-VI are met. The control device further comprises a DC/AC conversion module, a positive pole outgoing line P1 and a negative pole outgoing line P2 of the battery pack clamp are electrically connected with the DC/AC conversion module, and an alternating current output end is electrically connected with the DC/AC conversion module. The positive lead wire P1 and the negative lead wire P2 of the battery pack clamp are respectively and electrically connected with the DC/AC conversion module and the DC output end, the DC/AC conversion module is then electrically connected with the AC output end, and the DC output end and the AC output end are respectively used for connecting different types of electric appliances 300-VI.

As an implementation manner, the battery pack clamping portion 111-vi is further provided with an elastic member, and the size of the accommodating space of the battery pack clamping portion 111-vi is adjusted by compression or stretching of the elastic member. In order to adapt to the battery packs 200-VI with different shapes and specifications, the accommodating space in the clamping parts 111-VI of the battery packs can be adjusted in size. The accommodating space of the battery pack clamping part 111-VI is adjusted through the elastic piece so as to adapt to battery packs 200-VI with different structural sizes. The battery packs 200-VI have different structural sizes, generally, the rated voltages and/or capacities are different, and the use requirements of different electric appliances 300-VI are met through the combination of the battery packs 200-VI with different structural sizes. The accommodating space in the battery pack clamping portions 111-VI can be transversely arranged to be wider to adapt to the width of most of the battery packs 200-VI, and the size of the accommodating space in the length direction (between the positive electrode and the negative electrode of the battery pack 200-VI) of the battery clamping portions 111 can be adjusted through compression or stretching of the elastic pieces, so that the accommodating space can accommodate the battery packs 200-VI with different structural sizes.

Furthermore, a locking element for fixing the battery pack 200-VI is arranged on the battery pack clamping part 111-VI. When an operator works, the battery pack 200-VI is arranged in the battery pack clamping part 111-VI, the position of the battery pack 200-VI is possible to move, the battery pack 200-VI is fixed through the clamping and locking element, the position of the battery pack 200-VI is prevented from moving, and meanwhile, good contact between the battery pack 200-VI and each connecting line of the battery pack clamping part 111-VI can be ensured. Specifically, the clamping and locking elements are of a clamping and locking structure, clamping hooks of the clamping and locking structure are arranged on the clamping portions 111-VI of the battery packs, clamping grooves are formed in corresponding positions of the battery packs 200-VI, and the battery packs 200-VI are guaranteed to be firmly fixed in the clamping portions 111-VI of the battery packs through matching of the clamping hooks and the clamping grooves. The clamping hooks in the battery pack clamping portions 111-VI are matched with the clamping grooves in the battery packs 200-VI to establish mechanical connection, so that the battery packs 200-VI can be firmly fixed in the battery pack clamping portions 111-VI. Furthermore, the number of the clamping hooks on each battery pack clamping portion 111-VI is two. Correspondingly, the number of the clamping grooves on the battery pack 200-VI is two, the battery pack 200-VI is more firmly fixed in the clamping part 111-VI of the battery pack through the matching of the two buckles and the two clamping grooves, and the position of the battery pack 200-VI cannot move. Meanwhile, the two buckles are oppositely arranged on two sides of the clamping part 111-VI of the battery pack, so that the battery pack 200-VI can be conveniently installed.

As an implementation manner, the battery pack clamping portion 111-vi is provided with a positioning column, and the battery pack 200-vi is provided with a positioning hole matched with the positioning column. The positioning columns can play a role in guiding and positioning, the battery pack 200-VI can be easily installed in the battery pack clamping portions 111-VI due to the guiding effect of the positioning columns, and the battery pack 200-VI can be installed more stably due to the positioning effect of the positioning columns. In this embodiment, the number of the battery pack clamping portions 111-vi is three, the three battery pack clamping portions 111-vi are arranged side by side on the battery pack clamp of the bracket body 110-vi and are electrically connected with the control device through the positive electrode lead-out wire P1 and the negative electrode lead-out wire P2 on the battery pack clamp, and the three battery packs 200-vi are controlled by the control device to realize the series output of electric energy.

Embodiments based on the seventh inventive concept will be described below with reference to fig. 1 to vii to 6 to vii. The power supply system under the idea of the present invention is the same as the power supply system of the foregoing embodiment, except for the arrangement of the series-parallel circuit.

As shown in fig. 1 to vii, the present invention provides a power supply system including a plurality of standard battery cells 1 to vii, the number of which is 6, and a series-parallel circuit connecting the plurality of standard battery cells 1 to vii. The standard battery units 1-VII are identical to each other, have uniform specifications, have the rated voltage of 20V and are electrically isolated from each other. It is understood that the number of standard cells may be any other number. The voltages may be 20V, 40V, 60V, 80V, 100V, etc. Each battery unit 1 has independent positive and negative electrodes, and each pair of positive and negative electrodes is connected to a series-parallel circuit. The series-parallel circuit configures a plurality of standard battery units 1-VII into different series-parallel relations, and the power supply system forms different output voltages under different series-parallel relations. The series-parallel circuit comprises a first connection means 4-vii, which first connection means 4-vii comprises 1 first terminal group comprising first terminals connected to the positive and negative poles of a plurality of standard battery cells. The first connecting means 4-vii are fixedly arranged in relation to the power supply system. The series-parallel circuit comprises a moving assembly 2-vii, which moving assembly 2-vii comprises a body 30-vii and N second connecting means 3-vii supported by the body. Preferably, the body 30-VII is a cylinder and the N second connecting means 3-VII are arranged uniformly in the circumferential direction of the cylinder. The second connecting device 3-vii includes a second terminal group, the second terminal group includes the same number of second terminals as the first terminals, and the second terminals in the second terminal group are uniformly arranged along the longitudinal direction of the cylinder. The position of the second terminal is opposite to the position of the first terminal. The second connecting means 3-vii further comprise a voltage output which outputs the series-parallel result of the second terminal set. The body 30-VII is provided with a hollow interior to accommodate the lead so that the lead placement does not affect the aesthetics of the exterior of the system. The conducting wire can be an electric wire or a copper foil in a circuit board. When the leads are copper foils of a circuit board, the circuit board is disposed within the hollow interior cavity of the body 30-VII. The wire is connected to the second terminal. In different second connecting devices, the second terminals are combined into different series-parallel relations by the conducting wires, so that the voltage output ends have different outputs, and the power supply system outputs different voltages.

And changing the angle of the moving assembly rotating along the circumferential direction to enable different second connecting devices 3-VII to be connected with the first connecting devices 4-VII, so that different series-parallel relations are formed for the plurality of standard battery units 1-VII, and the power supply system can output different voltages. More specifically, when the moving assembly 2-vii is rotated by a first predetermined angle to a first position, the second connection means, referenced 21-vii, are connected to the first connection means, i.e. the second terminal set in the second connection means 3-vii, referenced 21-vii, is connected to the first terminal set in the first connection means 4-vii, respectively. The second terminal group in the second connecting device 3-VII with the reference number 21-VII has the Mth series-parallel relation, so that the Mth series-parallel relation is formed among the plurality of standard battery units 1-VII, namely 6 standard battery units 1-VII are connected in parallel, the voltage output end outputs 20V, and the power supply system outputs 20V. When the moving assembly 2-vii is rotated by a second predetermined angle to a second predetermined position, the second connecting means 3-vii, referenced 22-vii, is connected to the first connecting means 4-vii, i.e. the second terminal set in the second connecting means 3-vii, referenced 22-vii, is correspondingly connected to the first terminal set in the first connecting means 4-vii. The second terminal group in the second connecting device 3-VII with the reference number of 22-VII has the M +1 th series-parallel connection relationship, namely, every two of the 6 standard battery units are connected in series to form three groups, and then the three groups are connected in parallel, so that the M +1 th series-parallel connection relationship is formed among the plurality of standard battery units 1-VII, the voltage output end outputs 40V, and the power supply system outputs 40V. And the moving assembly 2-VII rotates by a third preset angle to reach a third position, so that a second connecting device with the reference number of 23-VII is connected with the first connecting device, every three of 6 standard battery units are connected in series to form two groups, then the two groups are connected in parallel, the voltage output end outputs 60V, and the power supply system outputs 60V. And the moving assembly 2-VII rotates by a fourth preset angle to reach a fourth position, so that when the second connecting device with the reference number of 24-VII and the first connecting device are connected in series, 6 standard battery units are connected in series, and the output voltage of the power supply system is 120V. Therefore, the rotary moving assemblies 2-VII are positioned at different positions, and the function that the power supply system can selectively output a plurality of or different voltages can be realized. Because the movable assemblies 2-VII are arranged in a rotary structure, the space required by the series-parallel circuit can be greatly reduced, and the operation is simpler and more convenient due to the rotary operation. It should be noted that the power system outputs 20V, 40V, 60V, or 120V when the moving assembly is at a specific position are merely exemplary, and may be any other voltage, such as the voltage values mentioned in other embodiments.

The rotation angle of the movable assembly 2-VII is 0-180 degrees, so that the movable assembly 2-VII can rotate to any angle within 0-180 degrees, an operator can adjust the series-parallel connection relation of the standard battery units 1-VII according to actual conditions, and the technical effect of facilitating switching among different output voltages is achieved.

The voltage output ends comprise a positive voltage output end and a negative voltage output end, and the movable assemblies 2-VII are provided with N voltage output ends, namely N positive voltage output ends and N negative voltage output ends, because the total number of the second connecting devices is N. The N negative voltage output ends are connected in series, or one negative voltage output end is arranged for each of the N negative voltage output ends, so that the number of lead wires can be reduced, the wiring scheme is simplified, and the wiring cost is reduced.

In the embodiment shown in fig. 1-vii, the second terminal sets in the second connecting means 3-vii are arranged in a single row in the longitudinal direction of the moving assembly 2-vii. Correspondingly, the first terminal groups of the first connecting means 4-VII are also arranged in a single row in the longitudinal direction of the moving assembly 2-VII.

In other alternative embodiments, the second terminal set in the second connecting device 3-vii may also be arranged in other ways. For example, in the embodiment shown in fig. 2-vii, the second terminal sets in the second connecting means 3-vii are arranged in two rows in the longitudinal direction of the moving assembly 2-vii. And the two rows are arranged at an angle of 180 degrees. Correspondingly, the first terminal groups of the first connecting means 4-VII are also arranged in two rows in the longitudinal direction of the moving assembly 2-VII.

In the previously described embodiment the displacing elements 2-vii change their position state by means of rotation. In other embodiments, the moving assembly 2-VII may also change position state in a sliding manner.

As shown in fig. 4 to vii and 5 to vii, the N second connection devices are arranged uniformly in the X direction, and the second terminals in the second terminal group are arranged in the Y direction. Wherein the X direction is the moving direction of the moving assembly 2-VII; the Y direction is the direction perpendicular to the X direction and is also the direction in which the moving assembly 2-vii extends longitudinally. The moving assembly 2-VII is moved up and down along the X direction to be in different position states, and a plurality of standard battery units can be connected in series and in parallel in different ways. For example, when the moving assembly 2-vii is moved to the first position such that the second connecting means, which are designated by reference numerals 11-vii, are connected to the first connecting means, 6 standard battery cells 1-vii are connected in parallel, the voltage output terminal outputs a voltage of 20V and the power supply system outputs a voltage of 20V. When the moving assembly 2-VII is moved to the second position, so that the second connecting device with the reference number 12-VII is connected with the first connecting device, every two of the 6 standard battery units are connected in series to form three groups, then the three groups are connected in parallel, the voltage output end outputs 40V, and the power supply system outputs 40V. When the moving assembly 2-VII is moved to the third position, so that the second connecting device, which is labeled 13-VII, is connected with the first connecting device, every three of the 6 standard battery cells are connected in series to form two groups, and then the two groups are connected in parallel, the voltage output end outputs 60V, and the power supply system outputs 60V. When the moving assembly 2-VII is moved to the fourth position, so that the second connecting means, which are designated by the reference numerals 14-VII, are connected with the first connecting means, the 6 standard battery cells are connected in series with each other, and the power supply system outputs 120V. It should be noted that the power system outputs 20V, 40V, 60V, or 120V when the moving component is at a specific position are merely exemplary, and may be any other voltage, such as the voltage values mentioned in other embodiments.

In the embodiment shown in fig. 4-vii, the second terminal group in each of the second connecting means 3-vii may be arranged in two rows in the Y-direction. Correspondingly, the first terminal group of the first connecting means 4-VII is also arranged in two rows in the Y-direction.

In other alternative embodiments, the second terminal set in the second connecting device 3-vii may also be arranged in other ways. For example, in the embodiment shown in fig. 6 to vii, the second terminal groups in the second connecting device 4 may be arranged in a single row in the Y direction. Correspondingly, the first terminal group of the first connecting means 4-VII is also arranged in two rows in the Y-direction.

Preferably, the power supply system is further provided with a detection unit, and the detection unit detects whether the moving assembly 2-vii reaches the preset position or leaves the preset position. When the moving member 2-vii is switched in position, the moving member 2-vii is moved out of the a position and then brought into the B position. When the detection unit detects that the mobile assembly 2-VII has left the A position, the control power supply system interrupts the output of the outward power. And then, when the detection unit detects that the moving assembly reaches the position B, controlling the power supply system to continuously output the electric energy outwards. This has the advantage that it is avoided that, when the mobile assembly 2-vii is switched between positions, arcing occurs between the second terminal set and the first terminal set, which could damage the terminal sets or cause short circuits. There are many prior art techniques for detecting whether a component has reached or departed from a predetermined position, which are not listed here.

In the present invention, in different embodiments, different names of elements having the same function or effect are used, for example, the power supply device in some embodiments and the power supply system in some embodiments, and for example, the power transmission device in some embodiments and the power supply platform in some embodiments. It will be understood by those skilled in the art that the presence of a particular element name in any location in the specification is intended to cover at least those elements which perform the same function or function in all embodiments of the invention.

The voltage numbers mentioned in the present invention, such as 20V, 40V, 60V, 80V, 120V, etc., may be nominal voltage or full voltage. For a cell, the nominal voltage refers to a nominal voltage in a cell specification, such as about 3.6V; the full voltage refers to a charge cut-off voltage in the standard charge, for example, about 4.0V. When referring to a particular voltage value in the present invention, it is meant to refer to the value itself as well as values within + -15% of the value. Illustratively, 17V to 23V all belong to the range of 20V in voltage number.

The voltage transformation circuit in the invention can be any circuit which changes the numerical relation of the output voltage and the output voltage, such as a transformer, a DC/DC circuit, a series-parallel circuit and the like. The meaning of the identification terminal of the present invention covers at least the identification terminal and the induction member in the embodiment.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention is not limited to the specific exemplary embodiments shown, and different exemplary embodiments can be mixed and matched with each other. The energy storage components as in embodiment a are replaced by the energy storage components in embodiment B. The interface circuit in the embodiment B is replaced by the interface circuit in the embodiment C, while the control circuit in the embodiment B is replaced by the control circuit in the embodiment D. The mixing and matching between different embodiments is not limited to the embodiments under the same inventive concept, and the embodiments under different inventive concepts may be mixed and matched arbitrarily. The invention also discloses a structure based on the concept of the invention and mixed matching among various embodiments.

Claims

1. An electrical energy transfer device comprising:

the input component is connected with the direct-current energy storage component;

the output component comprises an alternating current equipment interface, and the alternating current equipment interface comprises an alternating current equipment connecting end used for connecting alternating current equipment;

a transfer component that transfers electrical energy from the input component to the output component;

the adapter component comprises a direct current driving unit and an alternating current driving unit, the direct current driving unit converts the energy of the direct current energy storage component into direct current, and the alternating current driving unit converts the energy of the direct current energy storage component into alternating current.

2. The power transfer device of claim 1, further comprising an output selection module.

3. The power transmission device according to claim 2, wherein the output selection module detects whether the ac device at the ac device connection terminal is suitable for being supplied with dc power, and outputs dc power to the ac device connection terminal when the determination result is yes.

4. The power transfer device of claim 1, wherein the dc drive unit outputs continuous dc power to the ac equipment interface.

5. The power transmission apparatus according to claim 1, wherein the dc driving unit outputs the intermittently interrupted dc power to the ac device interface.

6. An electrical energy transmission device according to claim 5 wherein the direct current is periodically interrupted.

7. The power transmission device according to claim 5, wherein the interruption of the direct current occurs when a preset condition is met, wherein the preset condition is that the power transmission device detects that a main switch of an alternating current device connected with the power transmission device receives a disconnection command.

8. The power transmission device according to claim 5, wherein the direct current is interrupted when a preset condition is met, wherein the preset condition is that the power transmission device detects that an operating parameter of a main switch of an alternating current device connected with the power transmission device meets a breakpoint condition.

9. The power transmission device according to claim 1, wherein the adapter member further includes a detection unit that detects an operating parameter related to a characteristic of the ac equipment, a controller that controls the output selection unit to output the ac power or the dc power alternatively, according to a detection result of the detection unit.

10. The power transmission apparatus according to claim 9, wherein the detection unit detects power of an alternating current device; when the controller judges that the power of the alternating current equipment is smaller than or equal to a preset value, the controller controls the output selection unit to output alternating current to the alternating current equipment interface; and when the controller judges that the power of the alternating current equipment is greater than a preset power value, controlling an output selection unit to output direct current to an alternating current equipment interface.

11. The power transmission apparatus according to claim 10, wherein when the controller determines that the power of the ac device is greater than the preset power value, the controller further determines whether the ac device is suitable for being powered by dc power, and when the determination result is yes, controls the output selection unit to output the dc power to the ac device interface; and when the judgment result is negative, controlling the output selection unit to stop outputting the electric energy to the interface of the alternating current equipment.

12. The power transmission apparatus according to claim 11, wherein the controller further determines whether the ac device is suitable for supplying power with dc power by detecting an ac operating current value of the power transmission apparatus when the ac device interface outputs ac power and a dc operating current value of the power transmission apparatus when the ac device interface outputs dc power, and when the dc operating current value and the ac operating current value satisfy a predetermined relationship, the controller determines that the ac device interface is suitable for supplying power with dc power, and when the dc operating current value and the ac operating current value satisfy a turn-off condition, the controller determines that the ac device interface outputs dc power.

13. The power transfer device of claim 12 wherein the controller limits the power of the ac or dc power output to the ac device interface when determining whether the ac device is adapted to be powered by dc power.

14. The power transmission apparatus according to claim 10, wherein in the process of outputting the ac power to the ac device interface by the output selection unit, if the detection unit detects that the power of the ac device is greater than the preset power value, the controller controls the output selection unit to output the dc power to the ac device interface.

15. The power transmission apparatus according to claim 10, wherein in the process of outputting the dc power to the ac device interface by the output selection unit, if the detection unit detects that the power of the ac device is less than or equal to the preset power value, the controller controls the output selection unit to output the ac power to the ac device interface.

16. A control method of an electric power transmission apparatus, characterized by comprising the steps of:

an AC device interface for connecting an AC device to the power transmission apparatus;

detecting the power of the alternating current equipment;

when the power of the alternating current equipment is smaller than or equal to a preset power value, outputting alternating current to an alternating current equipment interface;

And when the power of the alternating current equipment is larger than a preset power value, outputting direct current to an interface of the alternating current equipment.

17. The control method according to claim 16, further comprising, before outputting the dc power to the ac device interface, the steps of: judging whether the alternating current equipment is suitable for supplying power to the alternating current equipment by direct current, and outputting the direct current to an alternating current equipment interface when the judgment result is yes; and when the judgment result is negative, stopping the electric energy output to the interface of the alternating current equipment.

18. The control method of claim 17, wherein the step of determining whether the ac appliance is adapted to be powered by dc power comprises:

outputting alternating current to an alternating current equipment interface;

detecting the alternating current working current of the electric energy transmission device;

outputting direct current to an alternating current equipment interface;

detecting the direct current working current of the electric energy transmission device;

when the direct current working current value and the alternating current working current value meet a preset relation, the judgment result is yes, and when the direct current working current value and the alternating current working current value meet a turn-off condition, the judgment result is no.

19. A power supply system comprising a dc energy storage means and a power output means, wherein the power transfer means is a power transfer means according to any one of claims 1 to 15.

20. The power supply system of claim 19, wherein the dc energy storage component comprises a primary energy storage module, a secondary energy storage module, and a tertiary energy storage module; the primary energy storage module is a battery pack detachably mounted on the electric energy transmission device; the secondary energy storage module is a standard unit positioned in the battery pack, and the standard unit is provided with an output terminal for outputting voltage; the direct-current energy storage component comprises a plurality of secondary energy storage modules; the secondary energy storage module comprises a plurality of tertiary energy storage modules; the third-stage energy storage module is a battery cell located in the second-stage energy storage module.

21. The power supply system of claim 20, wherein the switching component comprises a switching circuit, an input of the switching circuit is connected to the input component, an output of the switching circuit is connected to the dc drive unit and the ac drive unit, and the switching circuit is connected in series and/or in parallel with the secondary energy storage modules.

22. The power supply system of claim 21, wherein the conversion circuit comprises a plurality of different series-parallel circuits.