WO2014190831A1 - Procédé et dispositif de contrôle de batterie, terminal et support de stockage d'ordinateur - Google Patents

Procédé et dispositif de contrôle de batterie, terminal et support de stockage d'ordinateur Download PDF

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Publication number
WO2014190831A1
WO2014190831A1 PCT/CN2014/076221 CN2014076221W WO2014190831A1 WO 2014190831 A1 WO2014190831 A1 WO 2014190831A1 CN 2014076221 W CN2014076221 W CN 2014076221W WO 2014190831 A1 WO2014190831 A1 WO 2014190831A1
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WO
WIPO (PCT)
Prior art keywords
terminal
rechargeable battery
charged
battery
module
Prior art date
Application number
PCT/CN2014/076221
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English (en)
Chinese (zh)
Inventor
杨定洲
于宏全
贾鑫
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2014190831A1 publication Critical patent/WO2014190831A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient

Definitions

  • the present invention relates to control techniques, and more particularly to a battery control method, apparatus, terminal, and computer storage medium. Background technique
  • LTE Long-Term Evolution
  • 3G third-generation mobile communications
  • 4G fourth-generation mobile communications
  • LTE Long-Term Evolution
  • LTE Long-Term Evolution
  • the rate can reach 100Mbps.
  • the rate can be 150Mbps.
  • Such a high transmission rate leads to a significant increase in power consumption of the terminal, and a large-capacity battery becomes an essential choice in order to meet the requirements of the user for a long time of work.
  • Embodiments of the present invention provide a battery control method, apparatus, terminal, and computer storage medium, which are capable of charging other devices to be charged by using the remaining power of the terminal battery.
  • An embodiment of the present invention provides a battery control method, which is applied to a terminal, where the terminal is configured. There is a rechargeable battery, and a charging circuit connected to the rechargeable battery and having an output interface, the method comprising:
  • the battery charges the device to be charged through an output interface of the charging circuit.
  • the output interface multiplexes a universal data interface of the terminal.
  • the terminal is provided with a wireless communication module; the terminal performs wireless communication through the wireless communication module;
  • the method further includes:
  • the wireless communication module of the terminal is controlled to be turned on or off according to the detected remaining capacity of the rechargeable battery.
  • the embodiment of the present invention further provides a battery control device, which is applied to a terminal, the terminal is provided with a rechargeable battery, and a charging circuit connected to the rechargeable battery and having an output interface; the device includes:
  • a detecting module configured to detect whether the terminal needs to charge the device to be charged, and obtain a first detection result
  • a first control module configured to: when the first detection result obtained by the detecting module indicates that the terminal needs to charge the to-be-charged device, control the charging circuit, so that the rechargeable battery passes the charging An output interface of the circuit charges the device to be charged.
  • the output interface multiplexes a universal data interface of the terminal.
  • the terminal is provided with a wireless communication module configured to perform wireless communication; the device further includes a second control module;
  • the detecting module is further configured to detect a remaining amount of the rechargeable battery, and obtain a second Test results;
  • the second control module is configured to control the wireless communication module to be turned on or off according to the remaining power of the rechargeable battery in the second detection result obtained by the detection module.
  • An embodiment of the present invention further provides a terminal, where the terminal is provided with a rechargeable battery, and a charging circuit connected to the rechargeable battery and having an output interface; the terminal further includes a battery control device;
  • the method includes: a detection module and a first control module;
  • the detecting module is configured to detect whether the terminal needs to charge the device to be charged, and obtain a first detection result
  • the first control module is configured to, when the first detection result obtained by the detecting module indicates that the terminal needs to charge the to-be-charged device, control the charging circuit, so that the rechargeable battery passes through the The output interface of the charging circuit charges the device to be charged.
  • the output interface multiplexes a universal data interface of the terminal.
  • the terminal is provided with a wireless communication module configured to perform wireless communication; the terminal further includes a second control module;
  • the detecting module is further configured to detect a remaining amount of the rechargeable battery to obtain a second detection result
  • the second control module is configured to control the wireless communication module to be turned on or off according to the remaining power of the rechargeable battery in the second detection result obtained by the detection module.
  • the first control module is configured to convert an output voltage of the rechargeable battery into a power supply voltage, and use the power supply voltage to charge the device to be charged through the output interface.
  • the terminal charges the rechargeable battery through a high current charging device.
  • the capacity of the large current charging device is not less than 0.3 rated capacity.
  • the terminal is provided with a fast charging chip connected to the rechargeable battery; the fast charging chip supports increasing the constant current and trickle charging time ratio of the large current charging device example.
  • the rechargeable battery is internally provided with a high voltage battery cell.
  • the voltage of the high voltage cell is not lower than 3.85 volts.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the battery control method according to the embodiment of the invention.
  • the embodiment of the present invention With the technical solution of the embodiment of the present invention, the remaining power of the rechargeable battery using the terminal is charged for charging other devices to be charged, thereby improving the user experience.
  • the embodiment of the present invention can be based on the remaining battery capacity of the rechargeable battery. Controlling the opening or closing of the wireless communication function of the terminal, intelligently saving the power of the rechargeable battery of the terminal, and improving the user experience;
  • the embodiment of the present invention provides fast charging for the rechargeable battery The solution shortens the charging time of the battery and improves the user's experience.
  • the embodiment of the present invention reduces the size of the rechargeable battery by the high-voltage battery core provided internally.
  • FIG. 1 is a schematic flow chart of a battery control method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a multiplexing universal data interface for charging a device to be charged according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a battery control device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a functional entity of a terminal according to an embodiment of the present invention. detailed description
  • FIG. 1 is a schematic flowchart of a battery control method according to an embodiment of the present invention
  • Step 11 Detect whether the terminal needs to charge the device to be charged, and obtain a first detection result.
  • Step 12 When the first detection result indicates that the terminal needs to charge the device to be charged, control the charging circuit, so that the rechargeable battery passes through an output interface of the charging circuit as the device to be charged Charging.
  • the charging circuit of the terminal when the first detection result indicates that the terminal needs to charge the to-be-charged device, the charging circuit of the terminal is controlled, so that the terminal can pass the remaining power in the rechargeable battery. Charging the device to be charged; wherein the rechargeable battery charges the device to be charged through an output interface of the charging circuit, and achieves the object of embodiments of the present invention.
  • the terminal needs to be charged for charging the device to be charged when the following conditions are met:
  • Condition 1 Received a charging command sent by the end user.
  • the charging device to be charged when receiving the charging instruction sent by the user; the charging instruction indicating that the device to be charged needs to be charged.
  • the process is initiated by the terminal user.
  • the foregoing process may also be initiated automatically by the terminal, as described in Condition 2.
  • Condition 2 The terminal detects that the device to be charged is connected.
  • connection here is not limited to a physical connection, and the device to be charged can also be connected to the terminal by means of a wireless connection.
  • the terminal detects that the device to be charged is connected, the terminal automatically charges the device to be charged.
  • Condition 3 The terminal detects that the device to be charged is connected, and the terminal detects that the rechargeable battery can charge the device to be charged. Although the process described in Condition 2 can automatically charge the device to be charged, considering that the amount of charge of the rechargeable battery of the terminal should be preferentially provided to the terminal, Condition 3 is proposed.
  • the rechargeable battery when the rechargeable battery charges the device to be charged, it should first satisfy that the rechargeable battery is in a normal working state; and at the same time, it should also ensure that the remaining power of the rechargeable battery is preferentially provided to the terminal. It is also possible to provide charging to the device to be charged.
  • the remaining amount of the rechargeable battery can be determined by determining whether the remaining power of the rechargeable battery is not lower than a preset threshold, and when the remaining power of the rechargeable battery is not lower than a first preset threshold.
  • the device to be charged may be provided for charging.
  • the first detection result indicates that the terminal needs to charge the device to be charged.
  • the terminal may also determine that the terminal needs to charge the device to be charged when other conditions are met, and is not limited to the above three conditions.
  • the rechargeable battery is a large capacity battery.
  • the terminal uses the large-capacity battery, it can be ensured that a large amount of remaining power can be supplied to the device to be charged in addition to the demand for self-operation.
  • the output interface multiplexes the universal data interface of the terminal.
  • FIG. 2 is a schematic diagram of a multiplexed universal data interface for charging a device to be charged according to an embodiment of the present invention; as shown in FIG. 2, the embodiment of the present invention does not need to separately set an output interface for the charging circuit, and may directly multiplex the
  • the universal data interface 211 of the terminal 21 uses the remaining power of the rechargeable battery 212 to charge the device to be charged 22 through the universal data interface 211, thereby saving costs.
  • the terminal is provided with a wireless communication module, and wireless communication is performed by the wireless communication module;
  • the method further includes:
  • the wireless communication module of the terminal is controlled to be turned on or off according to the detected remaining power of the rechargeable battery.
  • the terminal may implement a wireless communication function, such as 4G communication and wireless fidelity (WiFi) communication, by using the wireless communication module.
  • the terminal may further charge the remaining battery according to the rechargeable battery.
  • the wireless communication module of the terminal may be turned on or off to enhance the user experience.
  • the wireless communication module when it is detected that the remaining power of the rechargeable battery exceeds a second preset threshold, the wireless communication module is automatically turned on, performing 4G communication, or WiFi communication, to improve the user experience; or detecting the charging When the remaining power of the battery is lower than the third preset threshold, the wireless communication module is automatically turned off to save the remaining power of the rechargeable battery, and the user experience can be improved.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the battery control method according to the embodiment of the invention.
  • the embodiment of the present invention further provides a battery control device, which is applied to a terminal, and the terminal is provided with a rechargeable battery, and a charging circuit connected to the rechargeable battery and having an output interface.
  • FIG. 3 is provided according to an embodiment of the present invention. Schematic diagram of a battery control device; as shown in FIG. 3, the device includes:
  • the detecting module 31 is configured to detect whether the terminal needs to charge the device to be charged, and obtain a first detection result
  • the first control module 32 is configured to, when the first detection result obtained by the detecting module 31 indicates that the terminal needs to charge the to-be-charged device, control the charging circuit, so that the rechargeable battery passes through the The output interface of the charging circuit charges the device to be charged.
  • the output interface may multiplex the universal data interface of the terminal.
  • the terminal is provided with a wireless communication module configured to perform wireless communication;
  • the device further includes a second control module 33;
  • the detecting module 31 is further configured to detect a remaining power of the rechargeable battery to obtain a second detection result
  • the second control module 33 is configured to control the wireless communication module of the terminal to be turned on or off according to the remaining power of the rechargeable battery in the second detection result obtained by the detection module.
  • the embodiment of the invention further provides a terminal.
  • 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal 40 is provided with a rechargeable battery 41, and a charging circuit 42 connected to the rechargeable battery 41 and having an output interface.
  • the terminal further includes a battery control device 30.
  • the battery control device includes: a detection module 31 and a first control module 32.
  • the detection module 31 is configured to detect whether the terminal 40 needs to charge the device to be charged 44. a test result;
  • the first control module 32 is configured to control the charging circuit 42 when the first detection result obtained by the detecting module 31 indicates that the terminal 40 needs to charge the to-be-charged device 44, so that the The rechargeable battery 41 charges the device to be charged 44 through an output interface of the charging circuit 42.
  • the terminal 40 charges the to-be-charged device 44 through the output interface of the charging circuit 42 by using the remaining power of the rechargeable battery 41.
  • the output interface multiplexes the universal data interface of the terminal 40.
  • the terminal 40 further includes a wireless communication module 43 configured to perform wireless communication; the terminal further includes a second control module 33;
  • the detecting module 31 is further configured to detect a remaining amount of the rechargeable battery 41 to obtain a second detection result
  • the second control module 33 is configured to control the wireless communication module 43 to be opened according to the remaining power of the rechargeable battery 41 in the second detection result obtained by the detecting module 31. Start or close.
  • the first control module 32 is configured to convert an output voltage in the rechargeable battery 41 into a power supply voltage, and use the power supply voltage to charge the to-be-charged device 44 through the output interface.
  • the terminal 40 can convert the output voltage of the rechargeable battery 41 into a power supply voltage through a boosting circuit, and use the power supply voltage to charge the to-be-charged device through the output interface.
  • the output voltage of the rechargeable battery 41 is 3.7 volts
  • the supply voltage is 5 volts
  • the output voltage is converted to the supply voltage by the boosting circuit.
  • the charging circuit 42 is further provided with a protection circuit.
  • the protection circuit may specifically include:
  • a current limiting circuit configured to limit the current output by the terminal 40 to ensure that the rechargeable battery 41 and the boosting circuit can operate normally
  • the overvoltage and overcurrent circuit is configured to prevent the power supply voltage from being too high or the charging current is too large, causing damage to the device to be charged 44, protecting the device to be charged 44;
  • the overshoot and overdischarge circuits are configured to prevent damage to the terminal 40 due to excessive output current or excessive output voltage.
  • the rechargeable battery 41 of the terminal 40 when used to charge the device to be charged 44, the rechargeable battery selects a large-capacity rechargeable battery; when the terminal 40 uses a large capacity In the case of the rechargeable battery 41, the existing charging time for the large-capacity rechargeable battery is too long, which cannot meet the normal use requirements of the user, and also affects the large-capacity rechargeable battery to the device to be charged 44. Charging process.
  • the terminal 40 charges the rechargeable battery 41 by a large current charging device.
  • the capacity of the large current charging device is not less than 0.3 rated capacity.
  • the high current charging device generally employs a charging device having a capacity of 0.4, and the rechargeable battery 41 is used in consideration of charging the rechargeable battery 41 of the terminal 40 with the large current device.
  • the heat generation amount is large, and the capacity of the large current charging device should be controlled to be not less than 0.3 rated capacity; preferably, the capacity of the large current charging device is 0.3 rated capacity, so that the large capacity can be ensured within 6 hours.
  • Rechargeable battery 41 is provided to be not less than 0.3 rated capacity; preferably, the capacity of the large current charging device is 0.3 rated capacity, so that the large capacity can be ensured within 6 hours.
  • the terminal 40 In addition to charging the rechargeable battery 41 of the terminal 40 with a large current charging device, it is also possible to shorten the charging duration of the rechargeable battery 41 by providing a quick charging chip in the terminal 40; preferably, The terminal 40 is provided with a fast charging chip connected to the rechargeable battery 41; the fast charging chip supports increasing the ratio of the constant current to the trickle charging time of the large current charging device.
  • the fast charging chip By using the fast charging chip, the turbulence and constant voltage and the pulse charging time of the large current charging device can be shortened, and the constant current charging state can be switched as soon as possible, so that the charging time can be effectively shortened.
  • the charging time of the rechargeable battery 41 can be more effectively shortened.
  • the rechargeable battery of the large capacity may affect the structural shape of the terminal 40.
  • the rechargeable battery 41 may be further provided with a high voltage battery.
  • the voltage of the high voltage battery cell is not lower than 3.85 volts.
  • the rechargeable battery 41 is reduced in size under the same capacity.
  • the charging pad device and the battery connector of the rechargeable battery 41 are selected to meet the demand of a large current.
  • the terminal may be implemented by a terminal such as a mobile phone, a tablet computer, or a notebook computer in an actual application; the detecting module 31, the first control module 32, and the second control module 33.
  • the central processing unit CPU, Central Processing Unit (DSP), digital signal processor (DSP) or Field Programmable Gate Array (FPGA); the wireless communication module 43 can be wireless in the terminal in practical applications.
  • Signal transceiver or transceiver antenna implementation In the embodiment described in FIG. 3 and FIG. 4, the terminal may be implemented by a terminal such as a mobile phone, a tablet computer, or a notebook computer in an actual application; the detecting module 31, the first control module 32, and the second control module 33.
  • the central processing unit CPU, Central Processing Unit (DSP), digital signal processor (DSP) or Field Programmable Gate Array (FPGA);
  • the wireless communication module 43 can be wireless in the terminal in practical applications.
  • Signal transceiver or transceiver antenna implementation In the embodiment described in FIG. 3 and FIG. 4, the terminal may be implemented by
  • FIG. 5 is a schematic structural diagram of a functional entity of a terminal according to an embodiment of the present invention. As shown in FIG. 5, the terminal 50 includes:
  • the rechargeable battery 509 is preferably a large-capacity rechargeable battery provided with a high-voltage battery cell; the charging circuit 507 is configured to charge the device to be charged through the output interface by using the remaining power in the rechargeable battery 509;
  • the charging circuit 507 includes: a boosting circuit, a current limiting circuit, an overvoltage and overcurrent protection current, an overshoot and an overdischarge circuit, and the like;
  • a fast charging chip 505 configured to shorten the charging time of the high current charger 51 to the rechargeable battery 509;
  • the wireless communication module 504 is configured to provide a wireless communication function for the terminal 50.
  • the voltage conversion module 506 is configured to convert the output voltage of the rechargeable battery 509 into multiple output voltages to ensure normal operation of the entire terminal.
  • the interaction module 503 is configured to interact with the terminal user, so that the user can set and view the terminal 50.
  • the display module 502 is configured to display the working status of the entire terminal to the user, implement the user interaction operation with the interaction module 503, and perform setting and status indication on the terminal 50.
  • the processing module 501 is configured to control the fast charging chip. 505.
  • the charging circuit 507, the wireless communication module 504, and the voltage conversion module 506 are managed and scheduled, and an indication of an abnormality;
  • the processing module 501 can also control the remaining power according to the rechargeable battery 509. Turning on or off the wireless communication module 504; and controlling the voltage conversion module 506 to query the state of the output voltage of each channel; wherein the state of the output voltage of each channel includes the voltage of the rechargeable battery 509 status.
  • the processing module 501 is equivalent to the battery control device shown in FIG. 3, and controls the charging circuit 507 to charge the device to be charged by using the remaining power of the rechargeable battery 509.
  • the terminal 50 charges the rechargeable battery 50 of the terminal 50 with a large current charger 51.
  • the terminal may be implemented by a terminal such as a mobile phone, a tablet computer, or a notebook computer; and the processing module 501 and the interaction module 503 in the terminal may be used by the CPU, DSP, or FPGA of the terminal in the actual application.
  • the display module 502 can be implemented by a display or a display screen of the terminal in an actual application;
  • the wireless communication module 504 can be implemented by a wireless signal transceiver or a transceiver antenna in the terminal in an actual application;
  • the fast charging chip 505, the voltage conversion module 506 and the charging circuit 507 can be implemented by a corresponding control chip or control circuit in practical applications.
  • the battery control method of the terminal may include: Step 1: After the terminal 50 is powered on, first check whether the high current charger 51 is connected, and determine that the high current charger 51 is connected.
  • the processing module 501 of the terminal 50 enables the fast charging chip 505 to charge the rechargeable battery 509, and in consideration of the problem of battery heating and security, the charging circuit 507 can be turned off, and the terminal 50 is prohibited from being The device to be charged is charged.
  • Step 2 When the processing module 501 determines that there is no charger connection, detecting whether the terminal 50 needs to charge the device to be charged; here, it may be detected whether the terminal 50 is connected to the device to be charged, and detecting the Whether the rechargeable battery 509 can charge the device to be charged, and obtain a corresponding detection result.
  • Step 3 When it is detected that the terminal 50 needs to charge the device to be charged, and the rechargeable battery 509 can charge the device to be charged, the processing module 501 controls the step 4: if it is detected When the rechargeable battery 509 is unable to charge the device to be charged, if the rechargeable battery 509 is not in a normal working state, the processing module 501 polls the state of the rechargeable battery 509 until The rechargeable battery 509 is abnormally released; the processing module 501 controls the charging circuit 507 to charge the device to be charged by using the remaining power of the rechargeable battery 509.
  • Step 5 The processing module 501 controls the wireless communication module 504 to be turned on or off according to the remaining power of the rechargeable battery 509.
  • the processing module 501 can also stop the terminal 50 from charging the device to be charged when detecting that the charging circuit 507 is abnormal.
  • the technical solution provided by the embodiment of the present invention can utilize the remaining power of the rechargeable battery in the terminal to charge the device to be charged, thereby improving the user experience; and controlling the wireless of the terminal according to the remaining power of the rechargeable battery of the terminal. Turning the communication function on or off; shortening the charging time of the rechargeable battery and completing the fast charging process; setting the high-voltage battery inside the rechargeable battery to reduce the size of the rechargeable battery, and avoiding the increase of the battery control device affecting the entire terminal. structure.
  • embodiments of the present invention can be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment of a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It should be understood that the flowchart can be implemented by computer program instructions and/or Or each of the processes and/or blocks in the block diagrams, and the combinations of the flows and/or blocks in the flowcharts and/or block diagrams.
  • the computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing device to produce a machine such that a process or a process and/or a block diagram of a block or A device that has multiple functions specified in the box.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the example provides a quick charging method for the rechargeable battery, which shortens the charging time of the battery; and the size of the rechargeable battery is reduced by the internal high-voltage battery, which greatly enhances the user experience.

Abstract

La présente invention concerne un procédé et un dispositif de contrôle de batterie, un terminal et un support de stockage d'ordinateur. Le procédé de contrôle de batterie est appliqué à un terminal, et le terminal comprend une batterie rechargeable et un circuit de charge qui est connecté à la batterie rechargeable et qui comprend une interface de sortie. Le procédé comprend les étapes suivantes : une étape consistant à détecter si le terminal a besoin ou non de charger un dispositif à charger, et à obtenir un premier résultat de détection ; et lorsque le premier résultat de détection indique que le terminal a besoin de charger le dispositif à charger, une étape consistant à envoyer une commande au circuit de charge afin de permettre à la batterie rechargeable de charger le dispositif à charger via l'interface de sortie du circuit de charge.
PCT/CN2014/076221 2013-05-28 2014-04-25 Procédé et dispositif de contrôle de batterie, terminal et support de stockage d'ordinateur WO2014190831A1 (fr)

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CN201310204250.2 2013-05-28
CN201310204250.2A CN104184179A (zh) 2013-05-28 2013-05-28 一种电池控制方法、装置和无线终端

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CN203193327U (zh) * 2013-03-22 2013-09-11 深圳市邦华电子有限公司 一种能向外充电的手机

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