CN208707885U - A kind of bluetooth headset and its charge cabin, charging system - Google Patents
A kind of bluetooth headset and its charge cabin, charging system Download PDFInfo
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- CN208707885U CN208707885U CN201821440502.6U CN201821440502U CN208707885U CN 208707885 U CN208707885 U CN 208707885U CN 201821440502 U CN201821440502 U CN 201821440502U CN 208707885 U CN208707885 U CN 208707885U
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Abstract
The utility model discloses a kind of bluetooth headset and its charging cabins, charging system, are related to technical field of integrated circuits.The bluetooth headset includes: earphone charging inlet circuit, control circuit, level shifting circuit and chip module；Earphone charging inlet circuit includes end of probe, is connected by control circuit with the power voltage terminal of bluetooth headset；When end of probe is connected to the detection foot in charging cabin, the second voltage that the voltage of end of probe is provided by the detection foot that the first voltage that power voltage terminal provides is converted to charging cabin, trigger control circuit exports the first level signal to level shifting circuit, then the first level signal can be converted into off signal by level shifting circuit, bluetooth headset is closed with flip chip module.As it can be seen that the utility model realizes the automatic shutdown of bluetooth headset when the end of probe of earphone charging interface is connected to the detection foot in charging cabin, solve the problems, such as that bluetooth headset occurs opening by mistake machine in the charging voltage deficiency in cabin of charging.
Description
Technical field
The utility model embodiment be related to technical field of integrated circuits more particularly to a kind of bluetooth headset and its charging cabin,
Charging system.
Background technique
With the fast development of the communication technology, bluetooth headset is more more and more universal, gives people's lives, work and learning tape
Great convenience is carried out.
Currently, most bluetooth headset usually uses built-in rechargeable battery as power supply.To guarantee bluetooth headset
Normal use, need to charge to the rechargeable battery in bluetooth headset, such as user do not use bluetooth headset when, by bluetooth
It charges in the charging cabin that earphone is put into the bluetooth headset.Specifically, after bluetooth headset is put into charging cabin, if charging cabin is to indigo plant
The voltage of tooth earphone charging reaches preset charging voltage, and such as 5 volts (Volt, V), then bluetooth headset can be mentioned based on charging cabin
The charging voltage automatic shutdown of confession, and enter charged state；When bluetooth headset leaves charging cabin, such as in bluetooth headset from charging
After cabin lifts, which can't detect the 5V charging voltage that charging cabin provides, and boots up, matches automatically, connect etc. and grasping
Make.It is blue such as in the dead battery in cabin of charging but when the charging voltage that cabin provides that charges is lower than preset charging voltage
Tooth earphone can not automatic shutdown after being put into charging cabin；Alternatively, the bluetooth headset being put into behind charging cabin has electricity in its internal battery
In the case where frequent progress shutdown, booting, pairing, connection etc. operation, lead to such as hand that can be connected with the bluetooth headset
The intelligent terminals such as machine, plate automatically by Audio conversion to the bluetooth headset, bring unnecessary fiber crops to user when users use
It is tired, such as need the dynamic connection turned off between bluetooth headset, cutting intelligent terminal and bluetooth headset of user hand.
Utility model content
The utility model provides a kind of bluetooth headset and its charge cabin, charging system, to solve bluetooth headset in charging cabin
Occur when the charging voltage deficiency of offer the problem of opening by mistake machine.
In a first aspect, the utility model embodiment provides a kind of bluetooth headset, comprising: earphone charging inlet circuit, control
Circuit, level shifting circuit and chip module processed；
Wherein, the earphone charging inlet circuit includes end of probe, the end of probe by the control circuit with it is described
The power voltage terminal of bluetooth headset is connected, and the end of probe is used to connect the detection foot in charging cabin；
When the end of probe is not attached to the detection foot in the charging cabin, the voltage of the end of probe is the supply voltage
The first voltage provided is provided；
When the end of probe is connected to the detection foot in the charging cabin, the voltage of the end of probe is converted to by first voltage
The second voltage that the detection foot provides, triggers the control circuit to the level shifting circuit and exports the first level signal；
The level shifting circuit is used to first level signal being converted to off signal, and the off signal is passed
It is defeated by chip module, the chip module is triggered according to the off signal and closes bluetooth headset.
Second aspect, the utility model embodiment additionally provide the charging cabin of bluetooth headset, which includes: charging cabin
Charging interface, charge management circuit and battery；
Wherein, the charging cabin charging interface includes detection foot, power supply foot and grounding leg, and the detection foot is for connecting indigo plant
The end of probe of tooth earphone, the power supply foot are used to connect the first charging end of the bluetooth headset, and, the grounding leg is used for
Connect the second charging end of the bluetooth headset；
One end of the charge management circuit connects the anode of the battery, and the other end connects the power supply foot, is used for
When the detection foot is connected to the end of probe of bluetooth headset, charging voltage is exported to the power supply foot.
The third aspect, the utility model embodiment additionally provide the charging system of bluetooth headset, comprising: bluetooth headset and fill
Electric cabin；Wherein, bluetooth headset includes bluetooth headset as described in relation to the first aspect；Charging cabin includes the charging as described in second aspect
Cabin；When the detection foot in the charging cabin is connected to the end of probe of the bluetooth headset, the charge management circuit in the cabin of charging to
The power supply foot in the charging cabin exports charging voltage.
The utility model embodiment is converted to charging by first voltage in the voltage of the end of probe of earphone charging inlet circuit
After the second voltage that the detection foot in cabin provides, shutdown letter can be exported to chip module by control circuit and level shifting circuit
Number so that chip module closes bluetooth headset, thus solve bluetooth headset in the prior art charging cabin charging voltage not
Occurs the problem of opening by mistake machine when sufficient.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of bluetooth headset of the utility model embodiment；
Fig. 2 is a kind of structural block diagram of bluetooth headset of one alternative embodiment of the utility model；
Fig. 3 is a kind of structural block diagram of bluetooth headset of the utility model another alternative embodiment；
Fig. 4 is the structural schematic diagram of one of one example of the utility model bluetooth headset；
Fig. 5 is a kind of structural block diagram in the charging cabin of bluetooth headset of the utility model embodiment；
Fig. 6 is a kind of structural schematic diagram in the charging cabin of bluetooth headset of one alternative embodiment of the utility model；
Fig. 7 is a kind of structural block diagram of the charging system of bluetooth headset of the utility model embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Referring to Fig.1, a kind of structural block diagram of bluetooth headset of the utility model embodiment is shown.The bluetooth headset can be with
It include: earphone charging inlet circuit 110, control circuit 120, level shifting circuit 130 and chip module 140.
Wherein, earphone charging inlet circuit 110 may include end of probe, the end of probe can by control circuit 120 with
The power voltage terminal VBAT of bluetooth headset is connected, and end of probe can be used for connecting the detection foot in charging cabin.Specifically, when visiting
The detection foot that end is not attached to charging cabin is surveyed, the voltage of the end of probe is the first voltage that power voltage terminal VBAT is provided；Work as spy
The detection foot that end is connected to charging cabin is surveyed, the voltage of the end of probe can be converted to the second electricity that detection foot provides by first voltage
Pressure, trigger control circuit 120 export the first level signal to level shifting circuit 130.Level shifting circuit 130 can be used for by
The first level signal that control circuit 120 exports is converted to off signal, which is transferred to chip module 140, from
And bluetooth headset can be closed according to the off signal with flip chip module 140.
To sum up, the utility model embodiment is connected to the detection in charging cabin in the end of probe of earphone charging inlet circuit 110
Foot, such as after bluetooth headset is put into charging cabin, the end of probe of the earphone charging inlet circuit 110 of the bluetooth headset can lead to
It crosses connector to be connected with the detection foot in cabin of charging, the voltage of end of probe is turned by the first voltage that power voltage terminal VBAT is provided
It is changed to the second voltage that the detection foot in charging cabin provides, so that the control circuit 120 triggered in bluetooth headset is electric to level conversion
Road 130 exports the first level signal, then first level signal can be converted to shutdown letter by level shifting circuit 130
Number, and it is transferred to the chip module 140 of bluetooth headset, bluetooth ear is closed to trigger the chip module 140 according to the off signal
Machine such as executes shutdown movement, realizes the automatic shutdown of bluetooth headset.
As it can be seen that the utility model embodiment is turned in the voltage of the end of probe of earphone charging inlet circuit 110 by first voltage
After the second voltage of detection foot offer in charging cabin is provided, control circuit 120 and level shifting circuit 130, Xiang Xin can be passed through
Piece module 140 exports off signal, so that chip module 140 closes bluetooth headset, is charging in the prior art to solve
The charging voltage that cabin provides is lower than preset charging voltage, bluetooth headset be put into behind the charging cabin can not automatic shutdown the problem of,
Solve the problems, such as that bluetooth headset occurs opening by mistake machine in the charging voltage deficiency in cabin of charging in the prior art.
In the concrete realization, optionally, the first voltage that power voltage terminal VBAT is provided can be higher than the detection in charging cabin
The second voltage that foot provides.For example, the first voltage that power voltage terminal VBAT is provided can be high level voltage, it such as can be 5
The high level voltage of volt；The second voltage that the detection foot in charging cabin provides can be low level voltage, such as inspection in charging cabin
In the case where foot connection is surveyed with reference to ground, second voltage can be 0 volt of low level voltage etc..
It is high level voltage in the first voltage that power voltage terminal VBAT is provided as an example of the utility model,
In the case that the second voltage that the detection foot in charging cabin provides is low level voltage, when the detection of earphone charging inlet circuit 110
End is not connected to the detection foot in charging cabin, such as after bluetooth headset leaves charging cabin, the spy of the earphone charging inlet circuit 110
The voltage for surveying end is high level voltage；When the end of probe of earphone charging inlet circuit 110 is connected to the detection foot in charging cabin, the ear
The voltage of the end of probe of machine charging inlet circuit 110 can be electrically charged the voltage pull-down of the detection foot in cabin, i.e. earphone charging interface electricity
The voltage of the end of probe on road 110 is converted to low level voltage by high level voltage, such as after bluetooth headset is put into charging cabin, charging
The detection foot in cabin can be connected to the end of probe of earphone charging inlet circuit 110 by connector so that the voltage of end of probe from
High level voltage is converted to low level voltage, electric to the output of level shifting circuit 130 first so as to trigger control circuit 120
Ordinary mail number.Specifically, control circuit 120 detect the voltage of end of probe is converted to low level voltage from high level voltage
When, a high level signal can be exported, and level conversion can be transferred to using the high level signal as the first level signal
Circuit 130 exports an off signal to chip module 140, so that chip module so as to trigger flat conversion circuit 130
140 are detecting off signal realization shutdown movement, i.e. closing bluetooth headset.
As it can be seen that this example is pulled low as the test side in cabin of charging in the voltage of the end of probe of earphone charging inlet circuit 110
After the low level voltage of offer, it can export and shut down to chip module 140 by control circuit 120 and level shifting circuit 130
Signal allows chip module 140 to close bluetooth headset according to the off signal, so that the bluetooth headset for being put into charging cabin exists
Can also be with automatic shutdown when the not enough power supply in charging cabin, that is, solving charging voltage of the existing bluetooth headset in charging cabin can not be certainly
The problem of dynamic shutdown, so can be avoided the bluetooth headset after putting charging cabin into be connected with intelligent terminal caused by problem,
Stability of warranty family during using bluetooth headset, improves user experience.
Certainly, bluetooth headset also can be realized automatically when bluetooth headset leaves charging cabin in the utility model embodiment
Booting simplifies user's operation so as to the trouble for avoiding user from being switched on manually.Optionally, control circuit 120 can be used for examining
The voltage of end of probe is surveyed, and when the voltage for detecting end of probe is first voltage, to second electricity of the output of level shifting circuit 130
Ordinary mail number.Specifically, such as leaving and filling in bluetooth headset in the first voltage that the voltage source voltage end VBAT of end of probe is provided
Behind electric cabin, the connection between the end of probe of earphone charging inlet circuit and the detection foot in charging cabin is disconnected, and the voltage of end of probe can
Switch to the first voltage that power voltage terminal VBAT is provided with the second voltage provided from the detection foot in charging cabin, so as to trigger
Control circuit 120 exports second electrical level signal to level shifting circuit 130, with triggering level conversion circuit 130 to chip module
140 one starting-up signal of output.Wherein, level shifting circuit 130 can be used for second electrical level signal being converted to starting-up signal, will
Starting-up signal is transferred to chip module 140, opens bluetooth headset according to starting-up signal so as to flip chip module 140, realizes
The Auto Power On of bluetooth headset.
Wherein, chip module 140 can be used for opening the indigo plant according to the starting-up signal when the bluetooth headset is closed
Tooth earphone.For example, whether chip module 140 after receiving starting-up signal, can detecte bluetooth headset currently in shutdown shape
State, to determine whether to execute boot action based on the starting-up signal.If detecting, bluetooth headset is currently at off-mode, that is, exists
When bluetooth headset shuts down, then bluetooth headset is opened according to starting-up signal, i.e. opening automatically for bluetooth headset is realized in execution boot action
Machine.Optionally, when detecting that bluetooth headset is currently at non-off-mode, it is such as in open state, shutdown letter can be ignored
Number, alternatively, can also execute other movements etc. based on the starting-up signal, the utility model embodiment does not limit this specifically
System.
In an alternative embodiment of the utility model, above-mentioned control circuit 120 can be a single-chip microcontroller control electricity
Road can specifically include one-chip computer module 121.Level shifting circuit 130 can specifically include the first conversion module 131 and second
Conversion module 132.As shown in Fig. 2, one end of the first conversion module 131 is connected with the first output end of one-chip computer module 121,
The other end is connected with the first reception pin of chip module 140, for export the first output end of one-chip computer module 121
First level signal is converted to off signal, and the off signal is transferred to the first of chip module 140 and receives pin.Second
One end of conversion module 132 is connected with the second output terminal of one-chip computer module 121, and the second of the other end and chip module 140
It receives pin to be connected, for the second electrical level signal of the second output terminal output of one-chip computer module 121 to be converted to booting letter
Number, and the starting-up signal is transferred to the second of chip module 140 and receives pin.
Specifically, the detection foot in cabin of charging may be connected to bluetooth ear when bluetooth headset puts charging cabin into and charged
The end of probe of the earphone charging inlet circuit 110 of machine, so that the voltage of the end of probe of earphone charging inlet circuit 110 is electric from first
Pressure is converted to second voltage, and the end of probe of the earphone charging inlet circuit 110 may be coupled to the monolithic in control circuit 120
Machine module 121.One-chip computer module 121 is when the voltage for detecting end of probe is converted to second voltage from first voltage, Ke Yitong
The first outlet is crossed, the first conversion module 131 into level shifting circuit 130 exports the first level signal, with first turn of triggering
It changes the mold block 131 and exports off signal to chip module 140, chip module 140 is allowed to close bluetooth ear according to off signal
Machine, into charged state.When bluetooth headset is proposed from charging cabin, the end of probe of earphone charging inlet circuit 110 can pass through
Resistance, conducting wire in control circuit 120, such as control circuit 120, are connected to power voltage terminal VBAT, so that the electricity of end of probe
Pressure can be by the voltage high of power voltage terminal VBAT, i.e. the voltage of the end of probe of earphone charging inlet circuit 110 can be by second
Voltage is converted to first voltage, to trigger the starting-up signal that one-chip computer module 121 generates a bluetooth headset.One-chip computer module
121 can be by second output terminal, and the second conversion module 132 into flat conversion circuit 130 exports second electrical level signal, with triggering
Second conversion module 132 exports starting-up signal to chip module 140, and chip module is allowed to open bluetooth according to starting-up signal
Earphone realizes the Auto Power On of bluetooth headset, the movement such as can be matched, be connected, automatically then to establish bluetooth headset and its
The communication connection relationship of his equipment, communicates bluetooth headset with other equipment, such as receives and/or send audio number
According to etc..
In the utility model embodiment, optionally, control circuit 120 can also include capacitance voltage stabilizing module 122 and prevent quiet
Electric handset module 123.As shown in figure 3, the detection of one end connection earphone charging inlet circuit 110 of electrostatic earphone module 123
DETECTOR PORT is held, the other end connects the reference ground of bluetooth headset.The electrostatic earphone module 123 may include one or
Multiple antistatic diodes can effectively be prevented such as Electro-static Driven Comb (Electro-Static Discharge, ESD) diode etc.
Only damage of the exterior static to bluetooth headset.Capacitance voltage stabilizing module 122 may include first capacitor pressure stabilizing submodule 1221 and
Two capacitance voltage stabilizing submodules 1222.Wherein, one end of first capacitor pressure stabilizing submodule 1221 connects earphone charging inlet circuit
End of probe DETECTOR PORT, the other end connects the reference ground of bluetooth headset, for stablizing end of probe DETECTOR PORT's
Voltage.The reference ground of one end connection bluetooth headset of second capacitance voltage stabilizing submodule 1222, the other end connect the electricity of bluetooth headset
The power input VDD of source voltage end VBAT and one-chip computer module 121, for stablizing the power input of the one-chip computer module
The voltage of VDD.
For example, first capacitor pressure stabilizing submodule 1221 may include one or more capacitors, specifically can be used for preventing ear
Machine connector circuit 110 with charge cabin charging interface instant jitter, so as to prevent the instant jitter to end of probe
The influence of DETECTOR PORT voltage achievees the purpose that the end of probe voltage of stable earphone charging inlet circuit 110.
Certainly, the second capacitance voltage stabilizing submodule 1222 also may include one or more capacitors, the utility model embodiment
This is not specifically limited.Capacitor in capacitance voltage stabilizing submodule 1222 may be coupled to 121 power input of one-chip computer module
VDD, and can be used as the decoupling capacitance of 121 power input VDD of one-chip computer module, enhance the stability of one-chip computer module 121.
Wherein, 121 power input VDD of one-chip computer module can be directly connected to the power voltage terminal VBAT of bluetooth headset.
In an alternative embodiment of the utility model, bluetooth headset can also include: key circuit 150 and two poles
Pipe isolation circuit 160.As shown in figure 3, one end of the diode-isolated circuit 160 connects second conversion module 132, separately
One end connects the key circuit 150 and the third of the chip module receives pin, so as to prevent key circuit from receiving
To user input actuation of keys when cause to the second conversion module 132 execute level conversion movement and cause to chip module
140 malfunction guarantees that chip module 140 is capable of the actuation of keys of normal response user input, meets the operation need of user
It asks.150 one end of key circuit connects the power voltage terminal VBAT of bluetooth headset, and the third of other end chip module connection 140 connects
Spasm foot, so that chip module can detecte the button operation that the used key circuit 150 of user inputs, and then can be according to
Corresponding actions are executed according to the button operation detected, meet user's operation demand, improve user experience.
In the concrete realization, optionally, the first conversion module 131 in the utility model embodiment includes the first transistor
Q1, and the first end of the first transistor Q1 can connect the first output end of one-chip computer module 121, the of the first transistor Q1
Two ends can connect the first reception pin of chip module 140, and, the third end connection bluetooth headset of the first transistor Q1
With reference to ground.The first end that the first level signal is transferred to the first transistor Q1 is exported in the first output end of one-chip computer module 121
Afterwards, the first transistor Q1 is connected, so that the third end of the first transistor Q1 generates an off signal, and the off signal can be with
Be transferred to chip module 140 first receives pin.Chip module 140 can detect that the shutdown is believed by the first reception pin
Number, shutdown movement can be then executed based on the off signal, realized the automatic shutdown of bluetooth headset, simplified operation.Wherein,
One transistor Q1 can be N-type Metal-oxide-semicondutor (N-Metal-Oxide-Semiconductor, NMOS) crystal
Pipe, be also possible to other types transistor, such as can be triode, the utility model embodiment to this with no restriction.
In addition, the second conversion module 132 in the utility model embodiment may include second transistor Q2 and current limliting electricity
Hinder R1.Wherein, one end of current-limiting resistance R1 can connect the first output end of one-chip computer module 121, and the other end can connect
The first end of two-transistor Q2；The second end of second transistor Q2 can connect the second reception pin of chip module 140, with
And the third end of second transistor Q2 can connect the reference ground of bluetooth headset.Specifically, the second of one-chip computer module 121 is defeated
Outlet exports second electrical level signal, the first end of second transistor Q2 can be transferred to by current-limiting resistance R1, so that the second crystal
Pipe Q2 conducting.After second transistor Q2 conducting, the second end of second transistor Q2 generates a starting-up signal, so that chip module
140 the second reception pin can detecte starting-up signal, hold so as to flip chip module 140 according to the starting-up signal
The Auto Power On of bluetooth headset is realized in row boot action, simplifies operation.It should be noted that second transistor Q2 can be
NMOS transistor is also possible to other types transistor, such as can be triode, and the utility model embodiment does not limit this
System.
By taking true wireless stereo (True Wireless Stereo, TWS) bluetooth headset as an example, as shown in figure 4, working as
When TWS bluetooth headset charges in cabin of charging, the detection foot DETECTER PIN in cabin of charging can be connected by connector POGO PIN
It is connected to the end of probe DETECTOR PORT of the earphone charging inlet circuit 110 of bluetooth headset, so that end of probe DETECTOR
The voltage of PORT is converted to low level voltage from high level voltage.Wherein, the high level voltage of end of probe DETECTOR PORT can
To be connected to resistance R2 generation by power voltage terminal VBAT, and end of probe DETECTOR PORT can pass through one or more
Resistance R3 is connected to the one-chip computer module 121 in control circuit 120, is such as connected to the first foot VPP of one-chip computer module 121, from
And one-chip computer module 121 is allowed to detect a turn from high level voltage to low level voltage by first foot VPP
It changes.When detecting a conversion from high level voltage to low level voltage, the first output end of one-chip computer module 121 can be defeated
First level signal out such as exports 5 seconds high level signal, and level conversion electricity can be transferred to by resistance R4
The first conversion module 131 in road 130 is transferred to the grid (i.e. the second end of the first transistor Q1) of the first transistor Q1,
So that the drain D (i.e. the first end of the first transistor Q1) of the first transistor Q1 in the first conversion module 131 is conducting to bluetooth
The reference ground GND of earphone such as generates 5 seconds low level signal, so that chip dies to generate an off signal
First reception pin PIO17 of block 140 can detecte to 5 seconds low level signal and can realize that the shutdown of bluetooth headset is dynamic
Make.Optionally, the grid of the first transistor Q1 can be connected to the reference ground of bluetooth headset by one or more resistance R5
GND, this example to this with no restriction.
End of probe DETECTOR when TWS bluetooth headset is proposed from charging cabin, in earphone charging inlet circuit 110
PORT can be connected to the power voltage terminal VBAT of bluetooth headset, so that end of probe by the resistance R2 in control circuit 120
The voltage of DETECTOR PORT can be drawn high by power voltage terminal VBAT, i.e. the voltage of end of probe DETECTOR PORT can be with
High level voltage is converted to from low level voltage.One-chip computer module 121 detects end of probe DETECTOR by the first foot VPP
After conversion of the voltage of PORT from low level voltage to high level voltage, a second electrical level letter can be exported by second output terminal
Number, 3 seconds high level signal, and the second conversion module 132 that can be transferred in level shifting circuit 130 are such as exported, such as
By the current-limiting resistance R1 in the second conversion module 132, second electrical level signal is transferred to second in the second conversion module 132
Transistor Q2 is transferred to the grid (i.e. the first end of the first transistor Q2) of second transistor Q2, so that second transistor Q2
Conducting, to generate a starting-up signal.Specifically, in drain D (i.e. the second of second transistor Q2 of second transistor Q2
End) be conducting to bluetooth headset reference ground GND after, chip module 140 second receive pin PIO2 can detecte to one 3 seconds
Low level signal, and this 3 seconds low level signals that can be will test are as starting-up signal, to hold according to the starting-up signal
The automatic turn-on function of bluetooth headset is realized in row boot action.Optionally, the grid of second transistor Q2 can by one or
Multiple resistance R6 be connected to bluetooth headset reference ground GND, this example to this with no restriction.
Further, the first capacitor pressure stabilizing submodule 1221 in the utility model embodiment may include one or more
Capacitor specifically can be used for preventing earphone connector from trembling with charging cabin interface moment if may include capacitor C1 shown in Fig. 4
It is dynamic, stablize the end of probe DETECTOR PORT voltage of the earphone charging inlet circuit of bluetooth headset.Optionally, the second capacitor is steady
Pressure submodule 1222 also may include that one or more capacitors as may include capacitor C2 shown in Fig. 4 can be used as monolithic
The decoupling capacitance of machine module, to enhance the stability of one-chip computer module.
In addition, electrostatic earphone module 123 may include one or more ESD diodes, may include as shown in Fig. 4
ESD diode D1.As shown in figure 4, one end of ESD diode D1 can connect the reference ground of bluetooth headset, the other end can be with
The end of probe DETECTOR PORT for connecting earphone charging inlet circuit, can be effectively prevented exterior static to the damage of bluetooth headset
It is bad.
In the utility model embodiment, optionally, the earphone charging inlet circuit 110 can also include the first charging end
111 and second charging end 112.Wherein, the first charging end 111 can be connected with the charging voltage pin VCHG of chip module 140
It connects, and the power supply foot for connecting the charging cabin；Second charging end 112 can be connected with the grounding pin of chip module 140
It connects, and the grounding leg for connecting the charging cabin.As shown in figure 4, the first charging end 111 can be connected by connecting interface VCH
It is connected to the charging voltage pin VCHG of chip module 140, specifically can be used for receiving the charging that the power supply foot in charging cabin is exported
Voltage etc.；Second charging end 112 can be directly connected to the reference ground GDN of bluetooth headset, be particularly used in and receive connecing for charging cabin
The ground voltage etc. that ground pin is exported.
Further, the key circuit 150 in the utility model embodiment may include key S1 and resistance R7.Such as Fig. 4
Shown, key circuit 150 can be connected to power voltage terminal VBAT by resistance R7, and can be connected to chip by key S1
The third of module 140 receives pin REGEN, so as to be provided based on power voltage terminal VBAT in user's operation key S1
First voltage generates corresponding operation signal, and the third for being transferred to chip module 140 receives pin REGEN, so that chip module
140 execute corresponding operation movement according to the operation signal, meet the operational requirements of user.
Diode-isolated circuit in the utility model embodiment may include one or more diodes, such as may include
Diode D2 shown in Fig. 4.One end of diode D2 is connected to the grid of the second transistor Q2 in the second conversion module, separately
One end connects the key S1 of key circuit, has been particularly used in when preventing actuation of keys and has caused to act level shifting circuit 130
And lead to the malfunction to chip module 140.Specifically, chip module 140 can such as be connect based on the feature operation of software set
It listens, hang up the telephone, suspend, play music etc., user can pass through operation button S1, so that it may so that the third of chip module 140
It receives pin REGEN and receives corresponding operation signal, so that the operation signal of chip module 140 realizes that corresponding operation is dynamic
Make.Diode D2 has one-way conduction effect.As user's operation key S1, a high level of VBAT is connected to by R7
Signal cannot make the first transistor Q1, second transistor Q2 be connected by D5, i.e., the first of chip module 140 receives pin
PIO17, the second reception pin PIO2 do not detect a level conversion from high to low, thereby may be ensured that chip module 140
Answering, hanging up the telephone in the feature list of bluetooth headset may be implemented, the movement such as suspend, play music.
To sum up, the utility model embodiment, can after the detection foot that the end of probe of earphone charging interface is connected to charging cabin
By the chip module in bluetooth headset, the automatic shutdown of bluetooth headset is realized, solve bluetooth headset in the charging in charging cabin
Occurs the problem of opening by mistake machine when undertension.
It, can be with it should be noted that charging cabin in the utility model embodiment not only can be charging bluetooth earphone
Bluetooth headset is placed, to facilitate user to store bluetooth headset.
Referring to Fig. 5, a kind of structural block diagram in the charging cabin of bluetooth headset of the utility model embodiment is shown.The bluetooth
The charging cabin of earphone may include: charging cabin charging interface 510, charge management circuit 520 and battery 530.Wherein, the charging
Cabin charging interface 510 includes detection foot 511, power supply foot 512 and grounding leg 513, and the detection foot 511 is for connecting bluetooth headset
End of probe, power supply foot 512 is used to connect the first charging end of the bluetooth headset, and, grounding leg 513 is described for connecting
Second charging end of bluetooth headset.The anode of one end connection battery 530 of charge management circuit 520, other end connection power supply foot
513, for exporting charging voltage to power supply foot 511 when detection foot 511 is connected to the end of probe of bluetooth headset.
For example, after bluetooth headset is put into charging cabin, the end of probe of the earphone charging inlet circuit of the bluetooth headset can be with
Be connected to the detection foot 511 in charging cabin so that charge management circuit 520 can based on the electricity of battery current residual, to
The power supply foot of charging cabin charging interface 510 exports charging voltage, and the voltage of such as control power supply foot 512 remains 5V charging voltage,
To be based on the charging voltage as charging bluetooth earphone.Certainly, do not have in the end of probe of the earphone charging inlet circuit of bluetooth headset
Be connected to charging cabin detection foot 511 when, such as bluetooth headset leave charge cabin after, charge management circuit 520 can stop to
Foot 513 of powering exports charging voltage, that is, does not need to keep the voltage of power supply foot 513 to be 5V charging voltage, so as to not consume
The electricity of battery in charging cabin.
As it can be seen that charging cabin in the utility model embodiment is when detecting foot 511 and being connected to the end of probe of bluetooth headset, to
Foot 512 of powering exports charging voltage, and when detection foot 511 is not attached to the end of probe of bluetooth headset, it can close to power supply
The output of foot 512, so as to greatly reduce charging cabin from power consumption.
In an alternative embodiment of the utility model, the charging cabin further include: Universal Serial Bus Interface
(Universal Serial Bus, USB) 540.As shown in fig. 6, the voltage end VBUS connection of Universal Serial Bus Interface 540 is filled
Fulgurite manages circuit 520, the reference ground GND in the ground terminal connection charging cabin of Universal Serial Bus Interface 540；Charge cabin charging interface
510 detection foot 511, the grounding leg 513 of charging cabin charging interface 510 and the cathode of battery 530 can connect described fill
The reference ground GND in electric cabin.The anode of battery 530 may be coupled to charge management circuit 520.Furthermore, general serial is total
The voltage end VBUS of line interface 540 can connect charging cabin power end VCC, the utility model embodiment to this with no restriction.
In the concrete realization, when the end of probe of the earphone charging inlet circuit of bluetooth headset is connected to the detection foot in charging cabin
511, whether charge management circuit 520 can detecte bluetooth headset fully charged.If detecting, bluetooth headset has been filled with electricity, can be with
Based on preset boost charge mode in the charge management circuit 520, stop the power supply foot to charging cabin charging interface 510
512 output charging voltages, that is, be automatically closed charging, thus reduce cabin of charging from power consumption.If detecting bluetooth headset underfill
Electricity can then determine that needs charge to the bluetooth headset, then based on preset liter in the charge management circuit 520
Charging modes are pressed, export charging voltage to the power supply foot 512 of charging cabin charging interface 510, so that the voltage of power supply foot 512 reaches
Charging voltage, to realize the charging to bluetooth headset based on charging voltage, until bluetooth headset is fully charged.
It should be noted that charge management circuit 520 can use one or more boost charge modes, charge to being put into
The bluetooth headset in cabin charges, and the utility model embodiment does not make specifically the boost charge mode in fulgurite reason circuit 520
Limitation.For example, charge management circuit 520 can be based on power-supply device after charging cabin is connected to power-supply device by USB interface
The electric energy of offer, charge for the battery 530 in the bluetooth headset being put into the charging cabin and/or the charging cabin etc..
On the basis of the above embodiments, the utility model embodiment also provides a kind of charging system of bluetooth headset.Such as
Shown in Fig. 7, the charging system of bluetooth headset may include: bluetooth headset 710 and charging cabin 720.Wherein, bluetooth headset 710 can
To include any one bluetooth headset in above-described embodiment；Charging cabin 720 may include filling for any one in above-described embodiment
Electric cabin.When the detection foot in charging cabin 720 is connected to the end of probe of bluetooth headset 710, the charge management circuit in charging cabin 720 can be with
Charging voltage is exported to the power supply foot in charging cabin.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For example, for system embodiments, being described relatively simple, related place is referring to bluetooth headset and/or charging cabin embodiment
Part explanation.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, this is practical
It is novel to be realized by software and required common hardware, naturally it is also possible to by hardware realization, but in many cases the former
It is more preferably embodiment.Based on this understanding, the technical solution of the utility model substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which can store computer-readable
Floppy disk, read-only memory (Read-Only Memory, ROM), random access memory in storage medium, such as computer
(Random Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are used so that one
It is arbitrarily real that computer equipment (can be robot, personal computer, server or the network equipment etc.) executes the utility model
Apply the charging method of bluetooth headset described in example.
It is worth noting that, in above-mentioned bluetooth headset and its charging cabin, included each unit and module only according to
What function logic was divided, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each
The specific name of functional unit is also only for convenience of distinguishing each other, the protection scope being not intended to limit the utility model.
It should be appreciated that each section of the utility model can be realized with hardware, software, firmware or their combination.?
In above embodiment, what multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Software or firmware are realized.It, and in another embodiment, can be with known in this field for example, if realized with hardware
Any one of following technology or their combination realize: there is the logic gate for realizing logic function to data-signal
The discrete logic of circuit, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA),
Field programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (11)
1. a kind of bluetooth headset characterized by comprising earphone charging inlet circuit, control circuit, level shifting circuit and core
Piece module；
Wherein, the earphone charging inlet circuit includes end of probe, and the end of probe passes through the control circuit and the bluetooth
The power voltage terminal of earphone is connected, and the end of probe is used to connect the detection foot in charging cabin；
When the end of probe is not attached to the detection foot in the charging cabin, the voltage of the end of probe is that the power voltage terminal mentions
The first voltage of confession；
When the end of probe is connected to the detection foot in the charging cabin, the voltage of the end of probe is converted to described by first voltage
The second voltage that foot provides is detected, the control circuit is triggered to the level shifting circuit and exports the first level signal；
The level shifting circuit is used to first level signal being converted to off signal, and the off signal is transferred to
Chip module triggers the chip module according to the off signal and closes bluetooth headset.
2. bluetooth headset according to claim 1, which is characterized in that
The control circuit is used to detect the voltage of the end of probe, and is first voltage in the voltage for detecting the end of probe
When, Xiang Suoshu level shifting circuit exports second electrical level signal；
The level shifting circuit is used to the second electrical level signal being converted to starting-up signal, and the starting-up signal is transferred to
The chip module；
The chip module is used to open the bluetooth headset according to the starting-up signal when the bluetooth headset is closed.
3. bluetooth headset according to claim 2, which is characterized in that the control circuit includes one-chip computer module, described
Level shifting circuit includes the first conversion module and the second conversion module；
One end of first conversion module is connected with the first output end of the one-chip computer module, the other end and the chip
First reception pin of module is connected, and the first level signal for exporting first output end is converted to shutdown letter
Number, and the off signal is transferred to the first of the chip module and receives pin；
One end of second conversion module is connected with the second output terminal of the one-chip computer module, the other end and the chip
Second reception pin of module is connected, and the second electrical level signal for exporting the second output terminal is converted to booting letter
Number, and the starting-up signal is transferred to the second of the chip module and receives pin.
4. bluetooth headset according to claim 3, which is characterized in that the control circuit further include capacitance voltage stabilizing module and
Electrostatic earphone module；
One end of the electrostatic earphone module connects the end of probe of the earphone charging inlet circuit, and the other end connects the indigo plant
The reference ground of tooth earphone；
The capacitance voltage stabilizing module includes first capacitor pressure stabilizing submodule and the second capacitance voltage stabilizing submodule；
One end of the first capacitor pressure stabilizing submodule connects the end of probe of the earphone charging inlet circuit, and the other end connects institute
The reference ground for stating bluetooth headset, for stablizing the voltage of the end of probe；
One end of the second capacitance voltage stabilizing submodule connects the reference ground of the bluetooth headset, and the other end connects the bluetooth ear
The power input of the power voltage terminal of machine and the one-chip computer module, for stablizing the power input of the one-chip computer module
Voltage.
5. the bluetooth headset according to claim 4 or 3, which is characterized in that the bluetooth headset further include key circuit and
Diode-isolated circuit；
One end of the diode-isolated circuit connects second conversion module, and the other end connects the key circuit and described
The third of chip module receives pin；
Described key circuit one end connects the power voltage terminal of the bluetooth headset, and the other end connects the third of the chip module
Receive pin.
6. bluetooth headset according to claim 3 or 4, which is characterized in that
First conversion module includes the first transistor, and the first end of the first transistor connects the one-chip computer module
The first output end, what the second end of the first transistor connected the chip module first receives pin, and, described the
The third end of one transistor connects the reference ground of the bluetooth headset；
Second conversion module includes second transistor and current-limiting resistance；
One end of the current-limiting resistance connects the first output end of the one-chip computer module, and the other end connects the second transistor
First end；
The second end of the second transistor connects the second reception pin of the chip module, the third of the second transistor
End connects the reference ground of the bluetooth headset.
7. bluetooth headset according to any one of claims 1 to 4, which is characterized in that the earphone charging inlet circuit is also wrapped
Include the first charging end and the second charging end；
First charging end is connected with the charging voltage pin of the chip module, and the confession for connecting the charging cabin
Electric foot；
Second charging end is connected with the grounding pin of the chip module, and the ground connection for connecting the charging cabin
Foot.
8. bluetooth headset according to any one of claims 1 to 4, which is characterized in that the first voltage is higher than described second
Voltage.
9. a kind of charging cabin of bluetooth headset characterized by comprising charging cabin charging interface, charge management circuit and battery；
Wherein, the charging cabin charging interface includes detection foot, power supply foot and grounding leg, and the detection foot is for connecting bluetooth ear
The end of probe of machine, the power supply foot are used to connect the first charging end of the bluetooth headset, and, the grounding leg is for connecting
Second charging end of the bluetooth headset；
One end of the charge management circuit connects the anode of the battery, and the other end connects the power supply foot, for described
When detection foot is connected to the end of probe of bluetooth headset, charging voltage is exported to the power supply foot.
10. charging cabin according to claim 9, which is characterized in that further include: Universal Serial Bus Interface；
The voltage end of the Universal Serial Bus Interface connects the charge management circuit, and the Universal Serial Bus Interface connects
Ground terminal connects the reference ground in the charging cabin；
The cathode of the detection foot, the grounding leg and the battery is all connected with the reference ground in the charging cabin.
11. a kind of charging system of bluetooth headset characterized by comprising bluetooth headset and charging cabin；
Wherein, the bluetooth headset includes bluetooth headset as described in any of the claims 1 to 8；
The charging cabin includes the charging cabin as described in claim 9 or 10；
When the detection foot in the charging cabin is connected to the end of probe of the bluetooth headset, the charge management circuit in the cabin of charging to
The power supply foot in the charging cabin exports charging voltage.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440502.6U CN208707885U (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
| US16/178,887 US10784722B2 (en) | 2018-09-04 | 2018-11-02 | BLUETOOTH headset, charging cabin and charging system thereof |
| JP2018214790A JP6869937B2 (en) | 2018-09-04 | 2018-11-15 | Bluetooth® earphones and charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440502.6U CN208707885U (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208707885U true CN208707885U (en) | 2019-04-05 |
Family
ID=65945940
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440502.6U Active CN208707885U (en) | 2018-09-04 | 2018-09-04 | A kind of bluetooth headset and its charge cabin, charging system |
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| CN (1) | CN208707885U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108924691A (en) * | 2018-09-04 | 2018-11-30 | 广州由我科技股份有限公司 | A kind of bluetooth headset and its charge cabin, charging system |
| CN110572739A (en) * | 2019-10-12 | 2019-12-13 | 深圳市芯连芯时代科技有限公司 | Bluetooth transmitting earphone charging management all-in-one machine |
| CN110677767A (en) * | 2019-10-31 | 2020-01-10 | 歌尔科技有限公司 | Wireless headset control method and system and TWS headset |
| CN111130596A (en) * | 2019-11-14 | 2020-05-08 | 华为技术有限公司 | Multiplexing circuit, interface circuit system and mobile terminal |
| CN115549266A (en) * | 2022-11-30 | 2022-12-30 | 广东新宝电器股份有限公司 | Charging control system and charging control method |
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2018
- 2018-09-04 CN CN201821440502.6U patent/CN208707885U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108924691A (en) * | 2018-09-04 | 2018-11-30 | 广州由我科技股份有限公司 | A kind of bluetooth headset and its charge cabin, charging system |
| CN110572739A (en) * | 2019-10-12 | 2019-12-13 | 深圳市芯连芯时代科技有限公司 | Bluetooth transmitting earphone charging management all-in-one machine |
| CN110677767A (en) * | 2019-10-31 | 2020-01-10 | 歌尔科技有限公司 | Wireless headset control method and system and TWS headset |
| CN111130596A (en) * | 2019-11-14 | 2020-05-08 | 华为技术有限公司 | Multiplexing circuit, interface circuit system and mobile terminal |
| CN115549266A (en) * | 2022-11-30 | 2022-12-30 | 广东新宝电器股份有限公司 | Charging control system and charging control method |
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