CN202218054U - Mobile terminal having double battery - Google Patents

Mobile terminal having double battery Download PDF

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Publication number
CN202218054U
CN202218054U CN2011203204021U CN201120320402U CN202218054U CN 202218054 U CN202218054 U CN 202218054U CN 2011203204021 U CN2011203204021 U CN 2011203204021U CN 201120320402 U CN201120320402 U CN 201120320402U CN 202218054 U CN202218054 U CN 202218054U
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CN
China
Prior art keywords
battery
switch
portable terminal
power supply
controller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011203204021U
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Chinese (zh)
Inventor
崔康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
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BYD Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN2011203204021U priority Critical patent/CN202218054U/en
Application granted granted Critical
Publication of CN202218054U publication Critical patent/CN202218054U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a mobile terminal having double batteries. The mobile terminal includes a battery A, a battery B, a controller, a first switch and a second switch. The controller controls the switching of the first switch and the second switch according to a temperature of the battery A and a temperature of the battery B, so as to connect the battery A or the battery B selectively to a power supply terminal of a power supply circuit of the mobile terminal. The mobile terminal having double batteries in the utility model can avoid problems of much too loss and severe heating of a battery which supplies power independently in the prior art, thereby prolonging the service lifetime of the batteries.

Description

A kind of portable terminal with double cell
Technical field
The utility model relates to communication apparatus and power technique fields, is specifically related to a kind of portable terminal with double cell.
Background technology
At present, portable terminals such as mobile phone have become communication tool indispensable in the daily life, and the requirement of mobile phone batteries stand-by time is more and more longer.But the stand-by time of general battery of mobile phone is all very limited, and therefore, the user runs into mobile phone through regular meeting and uses up situation about can't start shooting because of battery electric quantity.Simultaneously; When using mobile phone for a long time; Battery of mobile phone can generate heat because of internal resistance, the internal resistance that battery heating can further increase battery again, from and further cause the battery heat to increase vicious circle like this; So not only the loss battery electric quantity causes mobile phone rapid drawdown in cruising time in vain, and can therefore cause the battery of mobile phone lost of life.
The utility model content
Battery causes the problem of shorter battery life because of the internal resistance heating to the utility model in the prior art portable terminal in order to solve, thereby a kind of portable terminal with double cell of avoiding the battery thermal losses too much is provided.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of portable terminal with double cell comprises: battery A, battery B, controller, first switch and second switch; Said controller is controlled the conducting and the shutoff of first switch and second switch according to the temperature of the temperature of battery A and battery B, with said battery A or battery B are selected one be connected to the portable terminal power supply circuits feeder ear.
Further; Also comprise inverter; The output of said controller is connected to the input of inverter and the control end of second switch respectively; The output of inverter is connected to the control end of first switch, and the two ends of first switch connect the positive pole of battery A and the feeder ear of portable terminal power supply circuits respectively, and the two ends of second switch connect the positive pole of battery B and the feeder ear of portable terminal power supply circuits respectively.
Further, also comprise first light-emitting diode and first resistance, the positive pole of said first light-emitting diode connects the output of said inverter, and the negative pole of first light-emitting diode is connected to earth signal through first resistance.
Further, also comprise second light-emitting diode and second resistance, the positive pole of said second light-emitting diode connects the output of said controller, and the negative pole of second light-emitting diode is connected to earth signal through second resistance.
Further, it is characterized in that said first switch is the NMOS pipe.
Further, said second switch is the NMOS pipe.
Further, also comprise electric capacity, the two ends of said electric capacity connect the feeder ear and the earth signal of portable terminal power supply circuits.
Compared with prior art; The utlity model has following beneficial effect: a kind of portable terminal that the utility model provides with double cell; Control the conducting and the shutoff of first switch and second switch according to the temperature of the temperature of battery A and battery B through controller; With said battery A or battery B are selected one be connected to the portable terminal power supply circuits feeder ear; Can be so that the feeder ear of portable terminal power supply circuits be selected another powered battery for use when using a certain powered battery overheated, thus avoid the battery thermal losses too much, prolonged battery life.
Description of drawings
Fig. 1 is the mobile terminal circuit schematic diagram that the utility model first embodiment has double cell.
Fig. 2 is the mobile terminal circuit schematic diagram that the utility model second embodiment has double cell.
Fig. 3 is the mobile terminal circuit schematic diagram that the utility model the 3rd embodiment has double cell.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 is the mobile terminal circuit schematic diagram that the utility model first embodiment has double cell; Disclose a kind of portable terminal, having comprised: battery A, battery B, controller 10, first switch 11 and second switch 12 with double cell; Said controller 10 is controlled the conducting and the shutoff of first switch 11 and second switch 12 according to the temperature of the temperature of battery A and battery B, with said battery A or battery B are selected one be connected to the portable terminal power supply circuits feeder ear VCC.Control the conducting and the shutoff of first switch 11 and second switch 12 according to the temperature of the temperature of battery A and battery B through controller 10; The feeder ear VCC of portable terminal power supply circuits selects to connect arbitrary as power supply among battery A or the battery B; Can be so that the feeder ear VCC of portable terminal power supply circuits selects another powered battery for use when using a certain powered battery overheated; Thereby avoid a certain battery thermal losses too much, prolonged battery life.
In the present embodiment, battery A inside has first thermo-sensitive resistor, and the first temperature signal T1 is transferred in the controller 10; Battery B inside has second thermo-sensitive resistor, and the second temperature signal T2 is transferred in the controller 10; Like this controller 10 just can be according to first switch 11 of battery A and the further control connection battery of the temperature of battery B A, be connected the conducting and the shutoff of the second switch 12 of battery B.
In the present embodiment; Also comprise inverter 20; The output of said controller 10 is connected to the input of inverter 20 and the control end of second switch 12 respectively; The output of inverter 20 is connected to the control end of first switch 11, and the two ends of first switch 11 connect the anodal V1 of battery A and the feeder ear VCC of portable terminal power supply circuits respectively, and the two ends of second switch connect the anodal V2 of battery B and the feeder ear VCC of portable terminal power supply circuits respectively.The portable terminal here is preferably mobile phone; When using mobile phone, cell phone controller 10 can be given tacit consent to a certain battery such as battery A power supply, and cell phone controller 10 gets access to the resistance of first thermo-sensitive resistor in the battery A through the first temperature signal T1 that is connected into always simultaneously; The first thermo-sensitive resistor value in battery A reaches with reference to resistance; Be that battery A generates heat when reaching uniform temperature, cell phone controller 10 carries out logic and switches, and controller 10 output control signals are with second switch 12 conductings; And first switch 11 is turn-offed; The feeder ear VCC of mobile phone power supply circuits is connected to the anodal V2 of battery B, has so just accomplished the switching of power supply circuits, and mobile phone enters into the state that is continued power supply by battery B.Controller 10 is through the resistance of second thermo-sensitive resistor in the second temperature signal T2 monitoring battery B simultaneously; When second thermo-sensitive resistor in the battery B reached with reference to resistance, cell phone controller 10 sent control signal, and control second switch 12 turn-offs, 11 conductings of first switch; Power supply circuits switch on the loop by battery A power supply; So move in circles, mobile phone just can effectively reduce the battery of mobile phone thermal losses, can prolong the continuation of the journey and the stand-by time of mobile phone greatly.
Fig. 2 is the mobile terminal circuit schematic diagram that the utility model second embodiment has double cell; In the present embodiment, said first switch 11 is the NMOS pipe, and said second switch 12 also is the NMOS pipe; Like this when controller output high level, second switch 12 conductings are low level through the signal that inverter 20 exports first switch 11 to simultaneously, and this moment first, switch 11 broke off.In the present embodiment, also comprise the first light-emitting diode D1 and first resistance R 1, the positive pole of the said first light-emitting diode D1 connects the output of said inverter 20, and the negative pole of the first light-emitting diode D1 is connected to earth signal through first resistance R 1.Also comprise the second light-emitting diode D2 and second resistance R 2, the positive pole of the said second light-emitting diode D2 connects the output of said controller 10, and the negative pole of the second light-emitting diode D2 is connected to earth signal through second resistance R 2.Like this when a certain battery operated i.e. this anode is connected to mobile phone feeder ear VCC and goes up, can be luminous with the corresponding light-emitting diode of this battery, can know currently provides electric weight by which battery.Certain first switch 11 and second switch 12 also can be for PMOS manage because the PMOS pipe is the low level conducting, utilize the light-emitting diode indication certain when battery operated, can this gate pmos extremely before increase by one inverter so that can correctly indicate the battery of being worked.
In the present embodiment, also comprise capacitor C 1, the two ends of said capacitor C 1 connect the feeder ear VCC and the earth signal of portable terminal power supply circuits; The electric capacity of this capacitor C 1 is bigger, can avoid when battery A and battery B switching, occurring the situation of power down.
Fig. 3 is the mobile terminal circuit schematic diagram that the utility model the 3rd embodiment has double cell; Also comprise the 3rd resistance R 3 and the 4th resistance R 4; The two ends of said the 3rd resistance R 3 are connected to first thermo-sensitive resistor and the power supply of controller 10 among the battery A respectively; The two ends of said the 4th resistance R 4 are connected to second thermo-sensitive resistor and the power supply of controller 10 among the battery B respectively, and first thermo-sensitive resistor and second thermo-sensitive resistor are not shown at this.Such the 3rd resistance R 3 and the series connection of first thermo-sensitive resistor, the 4th resistance R 4 and the series connection of second thermo-sensitive resistor can be resistance with the temperature inversion that thermo-sensitive resistor is sensed like this; And further be converted into the voltage of getting on the thermo-sensitive resistor; When temperature reached a certain value, thermo-sensitive resistor is corresponding to reach a certain with reference to resistance, so promptly is converted into the voltage that this is got with reference to resistance; When controller 10 detected voltages are higher than this magnitude of voltage; Show that the temperature of this battery is higher than the temperature of setting, both can start-up control device output control signal switch battery, circuit is more convenient; And can effectively reduce the battery of mobile phone thermal losses, can prolong the continuation of the journey and the stand-by time of mobile phone greatly.
In one embodiment, what battery A adopted is the common battery structure in the existing portable terminal, for example; But the 3.7V lithium ion battery of recharging; Battery B can be the battery with battery A same structure, also can be the battery of other structures, as long as the electric weight of its output is identical with battery A.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims (7)

1. the portable terminal with double cell is characterized in that, comprising: battery A, battery B, controller, first switch and second switch; Said controller is controlled the conducting and the shutoff of first switch and second switch according to the temperature of the temperature of battery A and battery B, with said battery A or battery B are selected one be connected to the portable terminal power supply circuits feeder ear.
2. the portable terminal with double cell according to claim 1; It is characterized in that; Also comprise inverter, the output of said controller is connected to the input of inverter and the control end of second switch respectively, and the output of inverter is connected to the control end of first switch; The two ends of first switch connect the positive pole of battery A and the feeder ear of portable terminal power supply circuits respectively, and the two ends of second switch connect the positive pole of battery B and the feeder ear of portable terminal power supply circuits respectively.
3. the portable terminal with double cell according to claim 2; It is characterized in that; Also comprise first light-emitting diode and first resistance, the positive pole of said first light-emitting diode connects the output of said inverter, and the negative pole of first light-emitting diode is connected to earth signal through first resistance.
4. the portable terminal with double cell according to claim 1; It is characterized in that; Also comprise second light-emitting diode and second resistance, the positive pole of said second light-emitting diode connects the output of said controller, and the negative pole of second light-emitting diode is connected to earth signal through second resistance.
5. according to each described portable terminal of claim 1 to 4, it is characterized in that said first switch is the NMOS pipe with double cell.
6. according to each described portable terminal of claim 1 to 4, it is characterized in that said second switch is the NMOS pipe with double cell.
7. according to each described portable terminal with double cell of claim 1 to 4, it is characterized in that, also comprise electric capacity, the two ends of said electric capacity connect the feeder ear and the earth signal of portable terminal power supply circuits.
CN2011203204021U 2011-08-30 2011-08-30 Mobile terminal having double battery Expired - Lifetime CN202218054U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203204021U CN202218054U (en) 2011-08-30 2011-08-30 Mobile terminal having double battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203204021U CN202218054U (en) 2011-08-30 2011-08-30 Mobile terminal having double battery

Publications (1)

Publication Number Publication Date
CN202218054U true CN202218054U (en) 2012-05-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203204021U Expired - Lifetime CN202218054U (en) 2011-08-30 2011-08-30 Mobile terminal having double battery

Country Status (1)

Country Link
CN (1) CN202218054U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103904774A (en) * 2014-04-16 2014-07-02 广东欧珀移动通信有限公司 Circuit with high endurability and protection shell of mobile terminal
US10554066B2 (en) 2015-01-30 2020-02-04 Huawei Technologies Co., Ltd. Energy management method for a device with a rechargeable battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103904774A (en) * 2014-04-16 2014-07-02 广东欧珀移动通信有限公司 Circuit with high endurability and protection shell of mobile terminal
US10554066B2 (en) 2015-01-30 2020-02-04 Huawei Technologies Co., Ltd. Energy management method for a device with a rechargeable battery

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Granted publication date: 20120509