CN206759103U - A kind of battery pack open circuit protector - Google Patents
A kind of battery pack open circuit protector Download PDFInfo
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- CN206759103U CN206759103U CN201720535772.4U CN201720535772U CN206759103U CN 206759103 U CN206759103 U CN 206759103U CN 201720535772 U CN201720535772 U CN 201720535772U CN 206759103 U CN206759103 U CN 206759103U
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- open circuit
- battery pack
- battery
- circuit protector
- pack open
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a kind of battery pack open circuit protector; often section battery in one group storage battery group is connected in parallel to a battery pack open circuit protector; the battery pack open circuit protector includes one group of diode group; diode group is formed or is connected in parallel by multiple Schottky diodes by a Schottky diode and formed; the negative pole of diode group and the positive terminal of battery connect, and the positive pole of diode group and the negative terminal of battery connect；Advantage is that simple in construction, wiring is simple, can automatically detect the battery of open fault, and can automatic emergency processing battery pack open circuit failure, and actuation time is short.
Description
Technical field
A kind of battery pack open circuit protection device is the utility model is related to, more particularly, to a kind of battery pack open circuit protector.
Background technology
Batteries are as the important emergent standby electricity of wide variety of straight-flow system in the power systems such as transformer station, power plant
Source, the uninterrupted emergency power supplies of USP as important department or mechanism, there is extremely important effect, may once breaking down
Major accident can be led to.Need that batteries make back-up source especially by taking transformer station as an example, in transformer station is all important load.
And in numerous fault types of batteries, battery pack open circuit failure is one of failure the most serious, can directly result in whole group
Batteries can not normal external output voltage electric current.
So-called battery " open circuit " phenomenon, refer to that internal resistance constantly increases, more than certain when battery run time is longer
After value, battery just normally can not be exported externally, battery tension rapid drawdown, or even backward voltage occur, internal equivalent to " opening
Road ", similar to cutoff circuit.In one group storage battery group, if there is " open circuit " phenomenon in a section or a few section batteries, then
When needing supplying power for outside, voltage dip occurs in whole group batteries, can not normal work.Hereinafter, with an experimental simulation
Battery " open circuit " phenomenon explains this phenomenon particularly as some canonical parameter.Set battery of the experimental situation as 52 section 2V
There is the battery that a section is opened a way in the batteries of composition, extraneous load current is 30A, supplied by AC/DC electricity, experiment test：Handing over
Unexpected dead electricity is flowed, batteries need supplying power for outside moment, the voltage change situation of batteries.Fig. 1 was given at 1.8 seconds
Exchange unexpected dead electricity, the voltage change situation of whole group batteries.As shown in Figure 1, with the presence of section battery " open circuit " phenomenon
When, whole group accumulator battery voltage moment rapid drawdown 40V, this experimental phenomena is if occur in transformer station, then the weight in transformer station
Wanting load, moment can not normal work.
At present, the protection for battery pack open circuit does not obtain enough attention in actual applications, is not formed automatic
The emergency protection method of change.Traditional method is to find failure, or batteries by artificial periodic inspection batteries
Supply voltage wretched insufficiency, which causes to produce important load, during supplying power for outside just manually to be rushed to repair after normal work accident.
Wherein, the process of the method for artificial periodic inspection is：Every three months or half a year, cut-out batteries connect all loads, to storing
Battery carries out the electric discharge of verification property, so as to understand accumulator property.The method wastes time and energy, and time and process are all uncontrollable.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of simple in construction, simple battery pack open circuit of wiring and protected
Protect device, it can automatically detect the battery of open fault, and can automatic emergency processing battery pack open circuit failure, and act
Time is short.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of battery pack open circuit protector, its
It is characterised by：Often section battery in one group storage battery group is connected in parallel to a battery pack open circuit protector, and the battery is opened
Road protector includes one group of diode group, and described diode group is made up of a Schottky diode or by multiple Schottky two
Pole pipe is connected in parallel composition, and the negative pole of described diode group is connected with the positive terminal of described battery, described
The positive pole of diode group is connected with the negative terminal of described battery.
The battery pack open circuit protector also includes one and is used to prevent the reversed fuse of described Schottky diode, institute
The fuse stated is connected in series with described diode group, i.e., fuse is serially connected with the negative pole of diode group and the positive pole of battery
Between binding post, or fuse is serially connected between the positive pole of diode group and the negative terminal of battery.Work as Schottky
When the positive pole and reversed negative pole of diode, battery and the battery pack open circuit protector are protected by fuse wire.
The battery pack open circuit protector also includes one and is used to detect the open circuit detector whether described battery opens a way,
Described open circuit detector is made up of an afterflow detection coil and one piece of control board, described afterflow detection coil and institute
The diode group stated is connected in series, i.e., afterflow detection coil is serially connected with the positive pole of diode group and the negative terminal of battery
Between, or afterflow detection coil is serially connected between the negative pole of diode group and the positive terminal of battery, described control
It is provided with circuit board for detecting the hall position sensor in magnetic field caused by described afterflow detection coil, for perceiving
First temperature-sensitive component of the temperature for the Schottky diode stated, the second temperature-sensitive component for sense ambient temperature, break-make
Whether opened a way by described battery signal relay, the single-chip microcomputer of determination, the output end of described hall position sensor, institute
The output end for the first temperature-sensitive component stated, the output end of the second described temperature-sensitive component connect with described single-chip microcomputer respectively
Connect, the coil electricity loop of described signal relay is controlled by described single-chip microcomputer, and the contact of described signal relay is defeated
Go out end to be connected with outside host computer.In addition to providing the magnetic field needed for control board, it is also the afterflow detection coil of setting
One inductance damping, when by accidental backward voltage interference, voltage x current can be prevented to be mutated, so as to prevent Xiao Te
Based diode malfunctions；The control board of setting is as auxiliary, mainly alarm and to upper transmission information, i.e., by signal after
Electrical equipment is connected with outside host computer, automatic report and alarm information, allows remote personnel to understand battery pack open circuit situation, itself and major loop
（Schottky diode and afterflow detection coil are formed）Big current loop is completely physically and electrically upper to isolate, and ensure that control
Between circuit board and major loop in addition to magnetic field, have no effect, even if so as to ensure that control board breaks down, also will not
Major loop normally detection and action are influenceed, has accomplished to ensure that the reliability and stability of major loop to greatest extent.In Xiao Te
While based diode turns on, electric current is flowed through in afterflow detection coil, produces magnetic field, Schottky diode operational heat, radiating
Device heats up, and electric current is bigger, and magnetic field is stronger, and also temperature rise is bigger；Key componentses in control board are hall position sensor
Detection senses caused magnetic field in afterflow detection coil, and another two key componentses are the first temperature-sensitive component and the second temperature-sensitive
Component correspondingly detects the temperature and environment temperature of Schottky diode；Hall position sensor and the first temperature-sensitive component and
Signal is transferred to single-chip microcomputer by the second temperature-sensitive component, when magnetic field intensity exceedes limit value, temperature rise（The temperature of Schottky diode
And the difference of environment temperature）When meeting more than the two conditions of limit value simultaneously, single-chip microcomputer is it may determine that this battery pack open circuit is protected
Device action is protected, by signal relay to upper outputting alarm signal.
Described afterflow detection coil is made up of bar magnet and the seal wire being set around outside described bar magnet, and the one of described seal wire
End is connected with the positive pole of described diode group, and the negative terminal of the other end of described seal wire and described battery connects
Connect, described hall position sensor is located at the surface of described bar magnet and close to described bar magnet；Or described afterflow inspection
Test coil is made up of bar magnet and the seal wire being set around outside described bar magnet, one end of described seal wire and described diode group
Negative pole is connected, and the other end of described seal wire is connected with the positive terminal of described battery, and described hall position passes
Sensor is located at the surface of described bar magnet and close to described bar magnet.
The line footpath of described seal wire is 2~5 millimeters.Generally, the seal wire that line footpath is 3 millimeters, big line can be chosen
The seal wire in footpath can pass through high current.
The power module for described control board power supply is additionally provided with described control board.
The indicator lamp whether opened a way for indicating described battery is additionally provided with described control board, it is described
Indicator lamp is connected with described single-chip microcomputer.By setting indicator lamp, when open fault occurs for battery, single-chip microcomputer control instruction
Lamp flicker enables patrol officer is open-and-shut to recognize that battery is opened a way to prompt battery pack open circuit fault warning
Failure.
The battery pack open circuit protector also includes a radiator, and described Schottky diode is installed on described radiating
On device.By increasing radiator, effectively Schottky diode can be radiated, therefore the pole of Schottky two can be greatly increased
The electrical current of pipe, it ensure that the sufficiently long time removes the open fault of the battery of processing open circuit；Radiator can use
Aluminium radiator.
The battery pack open circuit protector also includes a heat-conducting plastic shell, described heat-conducting plastic shell by housing and with
The lid composition that described housing is engaged, described radiator are installed in the inner chamber of described housing, described afterflow inspection
Test coil is installed in a manner of described bar magnet is placed vertically in the inner chamber of described housing, the installation of described control board
In the inner chamber of described housing and described control board is located at the top of described afterflow detection coil, make it is described suddenly
Your position sensor is located at the surface of described bar magnet and close to the top of described bar magnet, the first described temperature-sensitive component
It is placed on described radiator or on described Schottky diode, the second described temperature-sensitive component is suspended from described housing
In inner chamber.It is Schottky diode, control board and each first device being arranged in control board using heat-conducting plastic shell
The radiating of part provides guarantee；First temperature-sensitive component is used to perceiving the temperature of Schottky diode, thus its can be placed in it is scattered
On hot device or on Schottky diode, generally selection is placed on radiator；Second temperature-sensitive component is used to perceive environment
Temperature, therefore it is suspended from the inner chamber of housing.
Formed with multiple radiating grooves on the outer wall of described housing, multiple thermal vias are offered on described housing.If
Radiating groove and thermal vias are put, radiating effect can be effectively increased.
Compared with prior art, the utility model has the advantage of：
1）When batteries are in charged state, or in supplying power for outside state but all normal all batteries, own
Schottky diode is in cut-off state, and battery pack open circuit protector is to disconnect departing from shape for whole batteries loop
State, any influence will not be produced on batteries；When batteries are in supplying power for outside state, but the property of a certain section battery
Energy extreme difference, even results in the generation of " open circuit " phenomenon, and the Schottky diode that other batteries are connect by the battery of open circuit provides
Forward voltage, Schottky diode is in the conduction state, the battery of short circuit open circuit, produces afterflow effect, other are normal
Battery continues externally to power to the load by Xiao Te diode circuits, automatic accurate can know the electric power storage in the presence of open circuit phenomenon
Pond, at the same can automatic emergency solve battery pack open circuit failure, there is provided the afterflow passage of Large Copacity high current.
2）When open fault occurs for a certain section battery, the pole of Schottky two that other batteries are connect by the battery of open circuit
Pipe provides forward voltage, and Schottky diode is in the conduction state, due to the conducting voltage very little of Schottky diode in itself,
The turn-on action time is extremely short, thus the battery pack open circuit protector operating time of protection be also it is extremely short, generally 1~3 millisecond,
It is 5 milliseconds of the voltage dip duration allowed less than transformer station's important load, pratical and feasible.
3）The battery pack open circuit protector for battery pack open circuit failure can automatic emergency solve, maintainer can be given
There is time enough to be overhauled.
4）Only include several Schottky for the battery pack open circuit protector for often saving battery in a group storage battery group
Diode, it is not only simple in structure, and wiring is simple.
5）Schottky diode, afterflow detection coil and control board cooperate, and can accomplish the storage of protection open circuit
While battery, reliable detection provides eye-catching indicator lamp prompting scene and patrolled with judging that battery whether there is open fault
Inspection personnel clearly judge which section battery has open fault, send alarm instruction to host computer, remote personnel can also not have to
Reach the spot i.e. can be known fault message；Afterflow detection coil coordinates with control board, and the means of predominantly detecting are magnetic field and temperature
Degree, the high-tension major loop of high current have been accomplished to isolate with the control loop of low current low-voltage on electrically and physically, reliably
Property and safe.
Brief description of the drawings
Fig. 1 is is not provided with battery pack open circuit protector, the voltage of whole group batteries when exchanging unexpected dead electricity at 1.8 seconds
Situation of change schematic diagram；
Fig. 2 is the composition and connection diagram of the battery pack open circuit protector of embodiment one；
Fig. 3 is the composition and connection diagram of the battery pack open circuit protector of embodiment two；
Fig. 4 is the composition and connection diagram of the battery pack open circuit protector of embodiment three；
Fig. 5 is the composition and connection diagram of the control board in the battery pack open circuit protector of embodiment three；
Fig. 6 is the integrally-built schematic cross-sectional view of the battery pack open circuit protector of example IV；
Fig. 7 is the integrally-built side view of the battery pack open circuit protector of example IV；
Fig. 8 is that a group storage battery group has installed the battery pack open circuit protector additional and has been not charged with the battery pack open circuit protector
Voltage-contrast curve synoptic diagram；
Fig. 9 is the ON time schematic diagram of the Schottky diode action in battery pack open circuit protector.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one：
A kind of battery pack open circuit protector that the present embodiment proposes, as shown in Fig. 2 the often section electric power storage in a group storage battery group
Pond is connected in parallel to a battery pack open circuit protector, and the battery pack open circuit protector includes one group of diode group and an insurance
Silk 1, diode group is made up of a Schottky diode 2, and fuse 1 is connected in series with Schottky diode 2, i.e. Schottky two
The negative pole of pole pipe 2 is connected with one end of fuse 1, and the positive terminal of the other end of fuse 1 and battery connects, Xiao
The positive pole of special based diode 2 and the negative terminal of battery connect, and fuse 1 is used to prevent that Schottky diode 2 is reversed,
When the positive pole and reversed negative pole of Schottky diode 2, battery and the battery pack open circuit is protected to protect by fuse wire 1
Protect device.
In the present embodiment, for reduced-capacity load, one group of diode group can be only by the low power pole of Schottky two
Pipe 2 forms；For big capacity load, one group of diode group only can be made up of a powerful Schottky diode 2.
In the present embodiment, fuse 1 uses prior art；Schottky diode 2 uses prior art, and it also can be by existing
Research and development have or follow-up have the reverse cut-off characteristics of forward conduction, can bear high current（0~100A）, forward conduction voltage
Small, actuation time is short other components substitute.
Embodiment two：
A kind of battery pack open circuit protector that the present embodiment proposes, as shown in figure 3, the often section electric power storage in a group storage battery group
Pond is connected in parallel to a battery pack open circuit protector, and the battery pack open circuit protector includes one group of diode group and an insurance
Silk 1, diode group is connected in parallel by two Schottky diodes 2 and formed, and fuse 1 is connected in series with diode group, i.e. two poles
The negative pole of pipe group is connected with one end of fuse 1, and the positive terminal of the other end of fuse 1 and battery connects, and two
The positive pole of pole pipe group and the negative terminal of battery connect, and fuse 1 is used to prevent that Schottky diode 2 is reversed, works as Xiao
When the positive pole and reversed negative pole of special based diode 2, battery and the battery pack open circuit is protected to protect by fuse wire 1
Device.
In the present embodiment, for big capacity load, one group of diode group can be by multiple low power Schottky diodes 2
It is connected in parallel composition.
Embodiment three：
A kind of battery pack open circuit protector that the present embodiment proposes, as shown in Figure 4 and Figure 5, it is proposed in embodiment one
Battery pack open circuit protector on the basis of add one and be used to detect the open circuit detector whether battery opens a way, open circuit inspection
Device to be surveyed to be made up of an afterflow detection coil 3 and one piece of control board 4, afterflow detection coil 3 is connected in series with diode group,
Specially afterflow detection coil 3 is serially connected between the positive pole of diode group and the negative terminal of battery, control board 4
On be provided with for detect magnetic field caused by afterflow detection coil 3 hall position sensor 41, for perceiving the pole of Schottky two
First temperature-sensitive component 42 of the temperature of pipe 2, the second temperature-sensitive component 43 for sense ambient temperature, break-make are by battery
Signal relay 44, single-chip microcomputer 45, the power module powered for control board 4 of no open circuit determination（Not shown in figure）, use
In the indicator lamp 46 whether opened a way of instruction battery, the output end of hall position sensor 41, the first temperature-sensitive component 42 it is defeated
Go out end, the output end of the second temperature-sensitive component 43 is connected with single-chip microcomputer 45 respectively, the coil electricity loop of signal relay 44 by
Single-chip microcomputer 45 controls, contact output end and the outside host computer of signal relay 44（Not shown in figure）Connection.The afterflow of setting
For detection coil 3 in addition to providing the magnetic field needed for control board 4, it is also the damping of inductance, by accidental reverse
During voltage disturbance, voltage x current can be prevented to be mutated, so as to prevent Schottky diode 2 from malfunctioning；The control electricity of setting
Road plate 4 is mainly alerted as auxiliary and to upper transmission information, i.e., is connected by signal relay 44 with outside host computer, certainly
Dynamic report and alarm information, allows remote personnel to understand battery pack open circuit situation, itself and major loop（Schottky diode 2 and afterflow inspection
Test coil 3 is formed）Big current loop is completely physically and electrically upper to isolate, and ensure that between control board 4 and major loop
In addition to magnetic field, have no effect, even if so as to ensure that control board 4 breaks down, also do not interfere with major loop and normally examine
Survey and act, accomplished to ensure that the reliability and stability of major loop to greatest extent.Turned in Schottky diode 2 same
When, electric current is flowed through in afterflow detection coil 3, produces magnetic field, the operational heat of Schottky diode 2, radiator heating, electric current gets over
Greatly, magnetic field is stronger, and also temperature rise is bigger；Key componentses in control board 4 are that the detection of hall position sensor 41 senses
Caused magnetic field in afterflow detection coil 3, another two key componentses are the first temperature-sensitive component 42 and the second temperature-sensitive component
The 43 corresponding temperature and environment temperature for detecting Schottky diode 2；The temperature-sensitive component 42 of hall position sensor 41 and first
Signal is transferred to single-chip microcomputer 45 with the second temperature-sensitive component 43, when magnetic field intensity exceedes limit value, temperature rise（Schottky diode
2 temperature and the difference of environment temperature）When meeting more than the two conditions of limit value simultaneously, single-chip microcomputer 45 is it may determine that this electric power storage
Pond open-circuit protector action, by signal relay 44 to upper outputting alarm signal.By setting indicator lamp 46, when battery is sent out
During raw open fault, single-chip microcomputer 45 controls indicator lamp 46 to flash to prompt battery pack open circuit fault warning, enables patrol officer
It is open-and-shut to recognize battery there occurs open fault.
In the present embodiment, afterflow detection coil 3 as shown in fig. 6, its by bar magnet 31 and the seal wire being set around outside bar magnet 31
32 compositions, one end of seal wire 32 are connected with the positive pole of diode group, the other end of seal wire 32 and the negative terminal of battery
Connection, hall position sensor 41 are located at the surface of bar magnet 31 and close to bar magnets 31.
In the present embodiment, the line footpath of seal wire 32 is 2~5 millimeters.Generally, it is 3 millimeters that can choose line footpath
Seal wire, the seal wire of big line footpath can pass through high current.
In the present embodiment, afterflow detection coil 3 is using conventional coil, as enamel-covered wire coiling or plain conductor around
Coil processed, it can be substituted by any component that magnetic field can be produced by electric current that is existing or subsequently researching and developing；Hall position passes
Sensor 41 uses prior art；First temperature-sensitive component 42 and the second temperature-sensitive component 43 can use thermistor；Signal after
Electrical equipment 44 uses existing relay；Single-chip microcomputer 45 can use conventional single-chip microcomputer, such as use model STC 5W404AS list
Piece machine, it sentences according to the output signal of hall position sensor 41, the first temperature-sensitive component 42 and the second temperature-sensitive component 43
The technology whether the battery pack open circuit protector acts of breaking is routine techniques.
Example IV：
A kind of battery pack open circuit protector that the present embodiment proposes, as shown in Figure 6 and Figure 7, it is proposed in embodiment three
Battery pack open circuit protector on the basis of add radiator 5 and heat-conducting plastic shell 6, heat-conducting plastic shell 6 is by housing 61
Formed with the lid 62 being engaged with housing 61, radiator 5 is installed in the inner chamber of housing 61, and Schottky diode 2 is installed on
On radiator 5, afterflow detection coil 3 is installed in the inner chamber of housing 61 in a manner of bar magnet 31 is placed vertically, control board 4
It is installed in the inner chamber of housing 61 and control board 4 is located at the top of afterflow detection coil 3, makes hall position sensor 41
In the surface of bar magnet 31 and close to the top of bar magnet 31, the first temperature-sensitive component 42 is placed on radiator 5 or the pole of Schottky two
On pipe 2, the second temperature-sensitive component 43 is suspended from the inner chamber of housing 61., can be effectively to the pole of Schottky two by increasing radiator 5
Pipe 2 is radiated, therefore can greatly increase the electrical current of Schottky diode 2, ensure that sufficiently long time place to go
Manage the open fault of the battery of open circuit；Radiator 5 can use aluminium radiator.It is Schottky two using heat-conducting plastic shell 6
The radiating of pole pipe 2, control board 4 and each component being arranged in control board 4 provides guarantee；First temperature-sensitive member device
Part 42 is used for the temperature for perceiving Schottky diode 2, therefore it can be placed on radiator 5 or on Schottky diode 2, typically
In the case of select to be placed on radiator 5；Second temperature-sensitive component 43 is used for sense ambient temperature, therefore it is suspended from the interior of housing 61
In chamber.
In the present embodiment, on the outer wall of housing 61 formed with multiple radiating grooves 63, multiple radiatings are offered on housing 61
Through hole 64.Radiating groove 63 and thermal vias 64 are set, radiating effect can be effectively increased.
The battery pack open circuit protector of above-mentioned each embodiment, when batteries are in charged state, or externally supplying
When electricity condition but all normal all batteries, because the voltage of battery is more than zero, i.e. Schottky in battery pack open circuit protector
There is battery tension in the both ends of diode 2, this voltage is backward voltage for Schottky diode 2, therefore Schottky
Diode 2 is in cut-off state, and battery pack open circuit protector is to disconnect disengaged position for whole batteries loop, no
Any influence can be produced on batteries.
When batteries are in supplying power for outside state, but the performance extreme difference of a certain section battery, even result in " open circuit "
Phenomenon is produced, and now, the battery of this section open circuit can not be exported externally, and equivalent to internal " open circuit ", and batteries externally supply
Electricity, foreign current are from positive outflow, are flowed into from negative, and electric current flows to just from negative in batteries, due to the battery of open circuit
Equivalent to " open circuit ", electric current is obstructed, and the battery both end voltage now opened a way is not zero, and direction and battery itself are original
Voltage is on the contrary, i.e. other batteries are carried by the Schottky diode 2 in battery pack open circuit protector that the battery of open circuit connects
Forward voltage is supplied, Schottky diode 2 is in the conduction state, the battery of short circuit open circuit, produces afterflow effect, other are normal
Battery continue externally to power to the load by Xiao Te diode circuits, automatic accurate can detect the presence of phenomenon of opening a way
Battery, at the same can automatic emergency solve battery pack open circuit failure, there is provided the afterflow passage of Large Copacity high current；The opposing party
Face, due to the conducting voltage very little of Schottky diode 2 itself, the turn-on action time is extremely short, therefore battery pack open circuit protector
Operating time of protection be also it is extremely short, generally 1~3 millisecond, when the voltage dip allowed less than transformer station important load continues
Between 5 milliseconds, it is pratical and feasible.Two when possessing normal voltage when i.e. the battery pack open circuit protector make use of battery normal and open a way
End occurs reversely to be cut with the characteristic of the voltage of former battery tension opposite direction, Schottky diode 2 forward conduction of itself
Only this inherent characteristic and large current characteristic can be born for a long time, accomplish whether automatic detection battery opens a way, automatic short circuit is opened
The battery on road, meet an urgent need in very short time and solve the open fault of battery, need not rely upon circuit board, electronic component and
The measurement and indirect computing to parameter such as chip judges, only utilizes the inherent characteristic of Schottky diode 2, has been truly realized automatic
Detection, is automatically processed, instant response action, and reliable and stable, greatly reduces the possibility of malfunction.Fig. 8 gives one group
Batteries have installed the battery pack open circuit protector additional and have been not charged with the voltage-contrast curve signal of the battery pack open circuit protector
Scheme, dotted line represents to have installed the voltage change situation of the battery pack open circuit protector additional in Fig. 8, and solid line represents to be not charged with the battery
The voltage change situation of open-circuit protector, as can be seen from Figure 8, in the case where having installed the battery pack open circuit protector additional,
1.8 seconds occur exchange dead electricity, battery supplying power for outside, battery pack open circuit protector snap action, short circuit open circuit battery,
Therefore the voltage of whole group batteries simply drops to 112V from 116V, has absolutely proved that the battery pack open circuit protector is being protected
There is obvious effect in terms of holding accumulator battery voltage, afterflow power supply.Fig. 9 gives the Schottky two in the battery pack open circuit protector
The ON time of pole pipe action, at 1~3 millisecond.
Auxiliary protection device of the battery pack open circuit protector as batteries, solves automation, quick well
The problem of battery pack open circuit failure is handled, is last pipe protection barrier of batteries, is protected to greatest extent with the loss of minimum
The dc source of standby can also reliably be provided when open fault be present for visual plant by having demonstrate,proved batteries, be ensure that and handed over
The normal operation of visual plant when being lost in electric.
The battery pack open circuit protector is a kind of battery open circuit protector, and it is applied to batteries, is also applied for other
Battery pack, as long as meeting the occasion being used in series more than 1 batteries；Fuse 1, diode in the battery pack open circuit protector
Group, the three of afterflow detection coil 3 are connected in series, and specific link position does not limit.
Claims (10)
- A kind of 1. battery pack open circuit protector, it is characterised in that：Often section battery in one group storage battery group is connected in parallel to one Individual battery pack open circuit protector, the battery pack open circuit protector include one group of diode group, and described diode group is by Xiao Special based diode is formed or is connected in parallel by multiple Schottky diodes and formed, the negative pole of described diode group and described storage The positive terminal connection of battery, the positive pole of described diode group are connected with the negative terminal of described battery.
- A kind of 2. battery pack open circuit protector according to claim 1, it is characterised in that：The battery pack open circuit protector is also It is used to prevent the reversed fuse of described Schottky diode, described fuse and described diode group string including one Connection connection.
- A kind of 3. battery pack open circuit protector according to claim 1 or 2, it is characterised in that：The battery pack open circuit is protected Device also includes one and is used to detect the open circuit detector whether described battery opens a way, and described open circuit detector is continuous by one Detection coil and one piece of control board composition are flowed, described afterflow detection coil is connected in series with described diode group, institute It is provided with the control board stated for detecting the hall position sensor in magnetic field caused by described afterflow detection coil, using In the first temperature-sensitive component, the second temperature-sensitive member device for sense ambient temperature of the temperature for perceiving described Schottky diode Whether part, break-make are opened a way signal relay, the single-chip microcomputer of determination by described battery, described hall position sensor it is defeated Go out end, the output end of the first described temperature-sensitive component, the output end of the second described temperature-sensitive component respectively with described list Piece machine is connected, and the coil electricity loop of described signal relay is controlled by described single-chip microcomputer, described signal relay Contact output end is connected with outside host computer.
- A kind of 4. battery pack open circuit protector according to claim 3, it is characterised in that：Described afterflow detection coil by Bar magnet and the seal wire composition being set around outside described bar magnet, one end of described seal wire and the positive pole of described diode group connect Connect, the other end of described seal wire is connected with the negative terminal of described battery, described hall position sensor position In the surface of described bar magnet and close to described bar magnet；Or described afterflow detection coil by bar magnet and is set around described Seal wire composition outside bar magnet, one end of described seal wire is connected with the negative pole of described diode group, described seal wire it is another End is connected with the positive terminal of described battery, and described hall position sensor is located at the surface of described bar magnet And close to described bar magnet.
- A kind of 5. battery pack open circuit protector according to claim 4, it is characterised in that：The line footpath of described seal wire is 2 ~5 millimeters.
- A kind of 6. battery pack open circuit protector according to claim 4, it is characterised in that：In described control board also The power module of promising described control board power supply is set.
- A kind of 7. battery pack open circuit protector according to claim 6, it is characterised in that：In described control board also The indicator lamp whether opened a way for indicating described battery is provided with, described indicator lamp is connected with described single-chip microcomputer.
- A kind of 8. battery pack open circuit protector according to claim 4, it is characterised in that：The battery pack open circuit protector is also Including a radiator, described Schottky diode is installed on described radiator.
- A kind of 9. battery pack open circuit protector according to claim 8, it is characterised in that：The battery pack open circuit protector is also Including a heat-conducting plastic shell, described heat-conducting plastic shell forms by housing and with the lid that described housing is engaged, Described radiator is installed in the inner chamber of described housing, what described afterflow detection coil was placed vertically with described bar magnet Mode is installed in the inner chamber of described housing, and described control board is installed in the inner chamber of described housing and described Control board is located at the top of described afterflow detection coil, described hall position sensor is located at described bar magnet Surface and the top of close described bar magnet, the first described temperature-sensitive component is placed on described radiator or described Xiao On special based diode, the second described temperature-sensitive component is suspended from the inner chamber of described housing.
- A kind of 10. battery pack open circuit protector according to claim 9, it is characterised in that：On the outer wall of described housing Formed with multiple radiating grooves, multiple thermal vias are offered on described housing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535772.4U CN206759103U (en) | 2017-05-16 | 2017-05-16 | A kind of battery pack open circuit protector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720535772.4U CN206759103U (en) | 2017-05-16 | 2017-05-16 | A kind of battery pack open circuit protector |
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| CN206759103U true CN206759103U (en) | 2017-12-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069884A (en) * | 2017-05-16 | 2017-08-18 | 宁波技冠智能科技发展股份有限公司 | A kind of battery pack open circuit protector |
| CN109244572A (en) * | 2018-11-09 | 2019-01-18 | 国网安徽省电力有限公司宿州供电公司 | Battery pack open circuit afterflow and alarm device |
| CN109870660A (en) * | 2019-03-25 | 2019-06-11 | 广西电网有限责任公司钦州供电局 | A kind of the open circuit detection system and method for battery pack |
| CN112968494A (en) * | 2021-03-02 | 2021-06-15 | 国网山东省电力公司泰安供电公司 | Automatic bridging device of open circuit storage battery and substation backup power supply |
-
2017
- 2017-05-16 CN CN201720535772.4U patent/CN206759103U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069884A (en) * | 2017-05-16 | 2017-08-18 | 宁波技冠智能科技发展股份有限公司 | A kind of battery pack open circuit protector |
| CN109244572A (en) * | 2018-11-09 | 2019-01-18 | 国网安徽省电力有限公司宿州供电公司 | Battery pack open circuit afterflow and alarm device |
| CN109870660A (en) * | 2019-03-25 | 2019-06-11 | 广西电网有限责任公司钦州供电局 | A kind of the open circuit detection system and method for battery pack |
| CN109870660B (en) * | 2019-03-25 | 2024-03-01 | 广西电网有限责任公司钦州供电局 | Open circuit detection system and method for battery pack |
| CN112968494A (en) * | 2021-03-02 | 2021-06-15 | 国网山东省电力公司泰安供电公司 | Automatic bridging device of open circuit storage battery and substation backup power supply |
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