CN107749647B

CN107749647B - A kind of battery pack structure, mobile terminal and charge control method

Info

Publication number: CN107749647B
Application number: CN201710895777.2A
Authority: CN
Inventors: 李龙操
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2019-10-15
Anticipated expiration: 2037-09-28
Also published as: CN107749647A

Abstract

The present invention provides a kind of battery pack structure, mobile terminal and charge control methods, are related to technical field of electronic equipment, and the battery pack structure includes: multiple battery units, and the multiple battery unit is connected by multiple switch circuit；When the multiple switching circuit is in first state, the multiple battery unit is parallel with one another；When the multiple switching circuit is in the second state, the battery pack of the multiple battery unit composition at least two groups parallel connection；Voltage detector component；First control unit, it is connect respectively with the battery unit, switching circuit, voltage detector component, receive the information about power and voltage detector component line voltage distribution detected of the battery unit, the first control instruction is sent to charger and controls the multiple switching circuit and is in the first state, or is sent the second control instruction to charger and controlled the multiple switching circuit and be in second state.

Description

A kind of battery pack structure, mobile terminal and charge control method

Technical field

The present embodiments relate to technical field of electronic equipment more particularly to a kind of battery pack structure, mobile terminal and fill Electric control method.

Background technique

With the rapid development of mobile communication technology, the quick charge terminal headed by smart phone, tablet computer is at end End equipment gradually occupies larger share in the market.From the point of view of the development trend of the terminal devices such as smart phone, tablet computer, eventually The display screen of end equipment develops towards screen enlarging and multifunction, central processing unit (central processing unit, CPU processing speed) is also gradually increased, these variations all can cause the power consumption rate of quick charge terminal to sharply increase.

In order to not influence stand-by time, the capacity of the battery of terminal device is also necessarily gradually increased.However, in the prior art In the case where, battery capacity is difficult to be optimized simultaneously with the charging time；For example, the increase of the capacity of single battery, it will usually Battery charge time is caused to increase.The prior art increases Charge Management to make terminal realize high-voltage great-current quick charge Chip is to carry out the conversion function of high-voltage charging, low-voltage power supply；And when a charging management chip progress high and low pressure conversion, until Rare 5% loss, the loss increase complete machine charging temperature rise, and device service life reduces.And in order to realize that increasing battery fills The charging time is reduced while electric current, when being charged using two charging management chips, at least 10% high-low pressure turns Power loss is changed, which increase complete machine charging temperature quickly, and temperature quickly increases the usage experience for necessarily affecting user.

Summary of the invention

The present invention provides a kind of battery pack structure, mobile terminal and charge control methods, existing its purpose is to solve There are battery capacity and the charging time in technology to be difficult to the problem of obtaining optimization simultaneously.

In order to solve the above-mentioned technical problem, the present invention is implemented as follows: a kind of battery pack structure, the battery pack structure Include:

Multiple battery units, the multiple battery unit are connected by multiple switch circuit；

Wherein, when the multiple switching circuit is in first state, the multiple battery unit is parallel with one another；Described When multiple switch circuit is in the second state, the battery pack of the multiple battery unit composition at least two groups parallel connection, described in every group Battery pack includes being sequentially connected in series and the identical battery unit of quantity；

Voltage detector component, for detecting the input voltage of the battery pack structure；

First control unit is connect with the battery unit, switching circuit, voltage detector component respectively, receives the electricity The information about power of pool unit and the line voltage distribution of voltage detector component detection, send the first control instruction simultaneously to charger It controls the multiple switching circuit and is in the first state, and/or

It sends the second control instruction to charger and controls the multiple switching circuit and be in second state；

Wherein, first control instruction is used to indicate the charger and provides charging voltage with first voltage, and described the Two control instructions are used to indicate the charger and provide charging voltage with second voltage, and the second voltage is lower than first electricity Pressure.

In a first aspect, being applied to above-mentioned battery pack structure the embodiments of the present invention also provide a kind of charge control method First control unit, which comprises

Receive the voltage inspection of the information about power and the battery pack structure of multiple battery units of the battery pack structure Survey element line voltage distribution detected；

According to the information about power and the line voltage distribution, the first control instruction is sent to charger and controls the electricity The multiple switch circuit of pond group structure is in first state, keeps the multiple battery unit parallel with one another；First control refers to Order is used to indicate charger and provides charging voltage with first voltage；

Or

According to the information about power and the line voltage distribution, the second control instruction is sent to charger and is controlled described more A switching circuit is in the second state, makes the battery pack of the multiple battery unit composition at least two groups parallel connection, electricity described in every group Pond group includes being sequentially connected in series and the identical battery unit of quantity；Second control instruction is used to indicate charger with second voltage Charging voltage is provided；

Wherein, the second voltage is lower than the first voltage.

Second aspect, the embodiments of the present invention also provide a kind of mobile terminals, including above-mentioned battery pack structure.

The third aspect, the embodiments of the present invention also provide a kind of mobile terminals, comprising: memory, processor and storage On a memory and the computer program that can run on a processor, processor realize above-mentioned charging control when executing computer program Step in method processed.

In embodiments of the present invention, by controlling multiple electricity when the multiple switch circuit of battery pack is in first state Pool unit is parallel with one another, using high-voltage charging and when multiple switch circuit is in the second state, by multiple stacks of cells At the battery pack of at least two groups parallel connection, battery pack charging is controlled respectively or is realized for load supplying at this time using low pressure charging Improvements in charge efficiency, power loss when reducing charging, shortens the charging time.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 shows the working state schematic representations of battery pack structure provided in an embodiment of the present invention and charger；

Fig. 2 indicates the partial circuit connection figure of battery pack structure provided in an embodiment of the present invention；

Fig. 3 indicates the flow chart of charge control method provided in an embodiment of the present invention；

Fig. 4 indicates the block diagram for the mobile terminal that the embodiment of the present invention provides.

Description of symbols:

U1, voltage detector component；MCU1, first control unit；LOAD1, the first power output circuit；LOAD2, the second electricity Source follower circuit；S1, first switch；S2, second switch；S3, third switch；S4, the 4th switch；S5, the 5th switch；S6, Six switches；S7, the 7th switch；S8, the 8th switch；B1, the first battery；B2, the second battery；B3, third battery；B4, the 4th electricity Pond；MCU2, the second control unit；R1, resistance；D1, first diode, D2, the second diode；D3, voltage-stabiliser tube；C1, capacitor； OP, power output unit.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot Structure or characteristic can combine in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

Referring to Fig. 1, the embodiment of the invention provides a kind of battery pack structures, comprising:

Multiple battery units, the multiple battery unit are connected by multiple switch circuit；For in Fig. 1, institute in figure It include four battery units based on battery in the battery pack structure shown, each battery unit is provided with based on switching Switching circuit, for controlling the type of attachment between battery charging and discharging and battery unit.

Wherein, when the multiple switching circuit is in first state, the multiple battery unit is parallel with one another, multiple In the state that battery unit is parallel with one another, multiple battery units charge jointly；The second state is in the multiple switching circuit When, the battery pack of the multiple battery unit composition at least two groups parallel connection, battery pack described in every group is including being sequentially connected in series and quantity Identical battery unit is jointly load supplying or common charging；

Voltage detector component U1, for detecting the input voltage of the battery pack structure, i.e. charger is defeated through outside line Enter to the input voltage of battery pack structure；

First control unit MCU1, wherein MCU, that is, micro-control unit (Micro Control Unit), respectively with it is described Battery unit, switching circuit, voltage detector component connection；

The information about power and the voltage detector component U1 line voltage distribution detected for receiving battery unit, to charger It sends the first control instruction and controls the multiple switching circuit and be in the first state, and/or

It sends the second control instruction to charger and controls the multiple switching circuit and be in second state；First control Unit MCU1 processed, which is used to be determined according to the information about power and line voltage distribution of battery unit, uses high-voltage charging to battery pack structure Or low pressure charging, During high voltage charge, which sends the first control instruction to charger and controls the multiple switching circuit, is in described First state, low pressure charging process, which sends the second control instruction to charger and controls the multiple switching circuit, is in described the Two-state.

Wherein, first control instruction is used to indicate charger and provides charging voltage, second control with first voltage System instruction is used to indicate charger and provides charging voltage with second voltage, and the second voltage is lower than first voltage.

Preferably, the battery pack structure further include:

Power supply input circuit is electrically connected with the charger to charge for battery pack structure；Specifically, power supply input circuit passes through Outside line is connect with charger.

The voltage detector component U1, connects with the power supply input circuit；

First power output circuit LOAD1 and second source output circuit LOAD2 is electrically connected with load；Described first Power output circuit LOAD1 includes the 6th switch S6, wherein in the case where the 6th switch S6 closure, if four battery units Parallel connection is that multiple switch circuit is in the first state, charges simultaneously after four battery units in parallel, reaches quick charge；When Multiple switch circuit is in second state, and the first battery B1 and third battery B3 compose in parallel battery pack and pass through the first power supply Output circuit LOAD1 is that load supplying or the second battery B2 and the 4th battery B4 compose in parallel battery pack to pass through second source defeated Circuit LOAD2 is load supplying out.

It should be noted that the first power output circuit LOAD1 and second source output circuit LOAD2 pass through connection It is the same load supplying for a route.

Input switching circuit is connected with the power supply input circuit, including first switch S1, with first control unit MCU1 Communication connection, for controlling charger as battery unit charging.

Battery pack structure further include: second switch S2, third switch S3, the with described control unit MCU1 communication connection Four switch S4, the 5th switch S5, the 6th switch S6, the 7th switch S7 and the 8th switch S8, control unit MCU1 and above-mentioned each There is control route between a switch.

Preferably, referring to fig. 2, Fig. 2 is the circuit diagram that the battery pack structure after control signal lines is removed in Fig. 1, described Battery unit includes the first battery unit, the second battery unit, third battery unit and the 4th battery unit；

The switching circuit includes: first switch circuit, second switch circuit, third switching circuit and the 4th switch electricity Road.

Specifically, first battery unit includes the first battery B1 and the first battery ground end, first battery Unit is connected by the 5th switch S5 with first battery ground end；

The first switch circuit includes the 4th switch S4, and the 4th switch S4 connects with the first battery B1；When First switch S1 is disconnected and the 4th switch S4 (or the 5th switch S5) is closed, and power supply input circuit is the first battery B1 charging；When 6th switch S6 and the 5th switch S5 is closed at, and the first battery B1 is load supplying.

Second battery unit includes the second battery B2 and the second battery ground end；The second switch circuit includes 8th switch S8, the 8th switch S8 connect with the second battery B2；Wherein, when the 8th switch S8 closure, power input Circuit is the second battery B2 charging and the second battery B2 is load supplying.

The third battery unit includes third battery B3 and third battery ground end, and the third battery unit passes through Third switch S3 connects with third battery ground end；The third switching circuit includes second switch S2, and described second opens S2 is closed to connect with the third battery B3；When first switch S1 disconnection and second switch S2 (or third switch S3) is closed, power supply Input circuit is third battery B3 charging；When the 6th switch S6 and third switch S3 are closed at, third battery B3 is that load supplies Electricity.

4th battery unit includes the 4th battery B4 and the 4th battery ground end；4th switching circuit includes 7th switch S7, the 7th switch S7 connect with the 4th battery B4；Wherein, when the 7th switch S7 closure, power supply input circuit It charges for the 4th battery B4, and the 4th battery B4 is load supplying.

Preferably, with continued reference to Fig. 2, during starting to charge, first control unit MCU1 controls charger first Output one is lower than the voltage (such as 5 volts) of the first default value, and battery pack structure is made to carry out the low current charge of short time, In the time of low current charge, the first control unit MCU1 is pre- lower than first in the total electricity for detecting the battery unit If numerical value (90% of such as electricity less than total electricity), and line is determined according to the voltage detector component U1 line voltage distribution detected Roadlock is anti-when meeting preset condition, that is, judges that battery pack structure currently meets high-voltage charging condition,

First control instruction is sent to the second control unit MCU2 of charger, instruction charger is mentioned with first voltage For charging voltage；And control the multiple switching circuit and be in the first state, i.e., it is switched to the first switch S1, third S3, the 5th switch S5 and the 6th switch S6 export cut-off signal respectively, to second switch S2, the 4th switch S4, the 7th switch S7 and the 8th switch S8 export closure signal respectively.

Wherein, in the state of first switch S1 disconnection, the 4th switch S4 is closed the first battery B1 and is in charged state, the Eight switch S8 are closed the second battery B2 and be in charged state, and second switch S2 is closed third battery B3 and is in charged state, and the 7th Switch S7 is closed the 4th battery B4 and is in charged state；Under first state, four battery units charge simultaneously, are quickly filled with realizing Electricity.And since the 7th switch S7 and the 8th switch S8 is closed at, so that the second battery unit and the 4th battery unit are mutually simultaneously It is load supplying after connection.

Specifically, under first state, the state of each switch is as shown in table 1:

Table 1:

Off-state	S1	S3	S5	S6
					Closed state	S2	S4	S7	S8

On the one hand, during high-voltage charging, the first control unit MCU1 is to second control unit After MCU2 exports first control instruction,

When the electricity for detecting at least one battery is higher than the second default value, i.e., the electricity of one of battery First reach preset requirement,

Closure signal is exported respectively to the first switch S1, third switch S3, the 5th switch S5 and the 6th switch S6, And to

The second switch S2 and the 4th switch S4 exports closure signal respectively, and the second control unit of Xiang Suoshu MCU2 is defeated Second control instruction out.Wherein, when preferentially reaching preset requirement there are a battery, four trunks are disconnected The relationship of charging makes four battery unit independences, so that charger carries out low pressure with the battery that second voltage is charged as underfill Charging.

At this point, the first battery B1 and third battery B3 formation battery pack parallel with one another, the second battery B2 and the 4th battery B4 Formation battery pack parallel with one another.

The state of i.e. each switch is adjusted to as shown in table 2:

Table 2:

Off-state

S2

S4

Closed state

S1

S3

S5

S6

S7

S8

On the other hand, during high-voltage charging, be supported on lasting electricity consumption (such as hand mobile terminal while charging while make With), at this time the first control unit MCU1 after sending first control instruction to the charger,

If detecting, the second source output circuit LOAD2 has electricity output, and the first battery B1 and third electricity When pond B3 electricity is full of, Xiang Suoshu second switch S2 and the 4th switch S4 export cut-off signal respectively, and to described first Switch S1 and the 6th switch S6 exports closure signal respectively, and Xiang Suoshu the second control unit MCU2 output second control refers to It enables；

And when the second battery B2 and the 4th battery B4 electricity are full of, Xiang Suoshu first switch S1 output disconnects letter Number, and closure signal is exported respectively to the third switch S3 and the 5th switch S5.

In the identical situation of capacity of four batteries, the first battery B1 and third battery B3 should be prior to the second batteries B2 and the 4th battery B4 are full of, and disconnect second switch S2 and the 4th switch S4 at this time, release four battery units in parallel chargings Relationship；It is closed first switch S1 and the 6th switch S6, the first battery B1 and third battery B3 formation battery pack parallel with one another, No longer battery pack charges thus；Second control instruction, only the second battery B2 are exported to the second control unit MCU2 It charges with the battery pack low pressure of the 4th battery B4 formation parallel with one another.

The state of i.e. each switch is adjusted to as shown in table 3:

Table 3:

Off-state	S2	S3	S4	S5
					Closed state	S1	S6	S7	S8

When the second battery B2 and the 4th battery B4 electricity are also filled with, disconnect first switch S1, be closed third switch S3 with And the 5th switch S5, so that the first battery B1 and third battery B3 formation battery pack parallel with one another is also load supplying, and extensive The relationship of multiple four trunks can supplement battery capacity with low current, until all batteries electricity is completely filled with.

The state of i.e. each switch is adjusted to as shown in table 4:

Table 4:

Off-state	S1	S2	S4
						Closed state	S3	S5	S6	S7	S8

Another aspect, during high-voltage charging, be supported on lasting electricity consumption (such as hand mobile terminal while charging while make With), the first control unit MCU1 it is described to charger send the first control instruction after,

If detecting, the second source output circuit LOAD2 has electricity output, and the electricity of the second battery B2 and the 4th When pond B4 electricity is full of, Xiang Suoshu second switch S2, the 4th switch S4, the 7th switch S7 and the 8th switch S8 export disconnected respectively ON signal exports closure signal to third switch S3, the 5th switch S5 and the 6th switch S6 respectively, and controls to described second Unit MCU2 processed exports second control instruction；

And when the first battery B1 and third battery B3 electricity are full of, the switch of the 7th switch S7 of Xiang Suoshu and the 8th S8 exports closure signal respectively.

The case where the electricity of the second battery B2 and the 4th battery B4 is lower than the electricity of the first battery B1 and third battery B3 Under, the second battery B2 and the 4th battery B4 are preferentially full of, at this time disconnect second switch S2, the 4th switch S4, the 7th switch S7 with And the 8th switch S8, the relationship of four battery units in parallel charging is released, and stop making the second battery B2 and the 4th battery B4 phase Mutually the battery pack in parallel formed is load supplying；It is closed third switch S3, the 5th switch S5 and the 6th switch S6, Xiang Suoshu the Two control unit MCU2 export second control instruction, the only electricity of the first battery B1 and third battery B3 formation parallel with one another The charging of pond group, and make this battery pack load supplying.

The state of i.e. each switch is adjusted to as shown in table 5:

Table 5:

Off-state	S1	S2	S4	S7	S8
						Closed state	S3	S5	S6

When the first battery B1 and third battery B3 electricity are also filled with, Xiang Suoshu the 7th switch S7 and the 8th switch S8 points Not Shu Chu closure signal so that the second battery B2 and the 4th battery B4 formation battery pack parallel with one another are also load supplying, and Restore the relationship of four trunks, battery capacity can be supplemented with low current, until all batteries electricity is completely filled with.

The state of i.e. each switch is adjusted to as shown in table 6:

Table 6:

Off-state	S1	S2	S4
						Closed state	S3	S5	S6	S7	S8

In the embodiment of the present invention, the battery unit includes the electricity with first control unit MCU1 communication connection Meter；Voltameter obtains the information about power of battery convenient for first control unit MCU1.

The first control unit MCU1 obtains the battery of the voltameter affiliated battery unit by the voltameter Electricity, and according to default rule, when confirming the affiliated battery failure of the voltameter, to the affiliated battery unit of the voltameter The concatenated switch of battery export cut-off signal.

Wherein, default rule is under low pressure charge mode, and after a period of time of charging, if detecting, the electricity of battery becomes Rate is lower than a default value, for example does not change, or varies less and (exclude the full situation of electricity), then confirms that the battery loses Effect, first control unit MCU1 export cut-off signal to the concatenated switch of the battery of the affiliated battery unit of the voltameter, than If the second battery B2 disconnects the 8th switch S8, the 4th battery B4 disconnects the 7th switch S7, and the first battery B1 disconnects the 4th switch S4 And the 5th switch S5, third battery B3 disconnect second switch S2 and third switch S3, if continuous detect exception several times Such as 3 times, first control unit MCU1 default closes the input and output of the battery, in case other abnormal conditions occur for battery.

Preferably, it is filled described in the second control unit MCU2 acquisition of the first control unit MCU1 by the charger The output voltage of electric appliance, and obtain the voltage detector component U1 input voltage detected；

The line impedance is determined according to the output voltage and the input voltage；

If the line impedance is less than default impedance threshold, confirm that the line impedance meets preset condition.

Wherein, first control unit MCU1 obtains the output electricity of the charger by the second control unit MCU2 Pressure, and voltage detector component U1 input voltage detected is obtained, first control unit is according to the output voltage and institute It states input voltage and determines the line impedance, by line impedance compared with preset default impedance threshold, compare the resistance of setting Data confirm that the line impedance meets preset condition if the line impedance is less than default impedance threshold, allow to carry out high pressure Otherwise charging carries out low pressure charging.

Specifically, before carrying out high pressure (high current) charging, pass through voltage detector component U1 real-time detection charging circuit direct current Resistance situation reduces electric current and charges if charging circuit D.C. resistance has been larger than normal DC resistance threshold, When voltage detector component U1 real-time detection charging circuit D.C. resistance is in normal DC resistance range, just carries out high current and fill Electricity, when in order to avoid carrying out high-voltage great-current charging when connecting with charger at once, since contact resistance is big, consumption power is high and burns The cabling of charging interface or charge circuit.

Preferably, the battery pack structure includes: further include:

MCU power supply circuit is electrically connected with the power supply input circuit, in the power supply input circuit and the charging When device is electrically connected, power for the first control unit MCU1；

The MCU power supply circuit includes voltage-stabiliser tube D3, and the pressure stabilizing value of the voltage-stabiliser tube D3 is higher than the list of the battery unit The maximum voltage value of a battery.

It wherein, is preferably first control unit MCU1 by MCU power supply circuit when battery pack structure is connect with charger Power supply；MCU power supply circuit includes: voltage regulator circuit, including voltage-stabiliser tube D3 and capacitor C1 parallel with one another；And and voltage regulator circuit Concatenated resistance R1 and the second diode D2；When insertion charger is charged, electric current passes through resistance R1, the second diode D2, capacitor C1, voltage-stabiliser tube D3 power to first control unit MCU1.

Further, the electric quantity output end of the battery of the first control unit MCU1 and at least one battery unit Electrical connection.When pulling out charger when output (or charger without), by battery through first diode D1, capacitor C1, voltage-stabiliser tube D3 powers to first control unit MCU1, and the pressure stabilizing value of D3 voltage-stabiliser tube requires the ceiling voltage of a little higher than single battery.Using double Road power supply power supply, after avoiding battery Cross prevention, first control unit MCU1 operation irregularity problem.

Reliability and hindrance is preferably based on to consider, the first switch S1, second switch S2, third switch S3, 4th switch S4, the 5th switch S5, the 6th switch S6, the 7th switch S7 and the 8th switch S8 are that N-type metal oxide is partly led Body NMOS tube switch, in this way when cell voltage is low, NMOS tube switch is in close state；And when charging beginning, the first control Unit MCU1 processed is initialized first, it is ensured that all switches are in normal condition.

In the embodiment of the present invention, after all battery capacities are completely filled with and (reach preset full of numerical value), the first control Unit MCU1 controls the output of charger in low-voltage state, such as second voltage or tertiary voltage, to protect outside line Connectivity port, while battery being protected not damaged by extraneous high pressure.

In the above embodiment of the present invention, when the multiple switch circuit of battery pack is in first state, multiple electricity are controlled Pool unit is parallel with one another, and using high-voltage charging, power loss when can reduce charging improves charge efficiency, shortens the charging time；? When multiple switch circuit is in the second state, by the battery pack of multiple battery units composition at least two groups parallel connection, control is electric respectively Group charging in pond is load supplying, is charged at this time using low pressure, can reduce mobile phone temperature rise, reduces power loss, promotes user's body It tests；And battery pack of the invention includes multiple batteries, can promote battery capacity；And multiple batteries can be kept away according to mobile terminal space It develops heat source and carries out separated, optimization complete machine temperature rise.The present invention solves battery capacity in the prior art and the charging time is difficult To obtain the problem of optimization simultaneously.

The present invention also provides a kind of mobile terminals, including above-mentioned battery pack structure.

Mobile terminal provided in an embodiment of the present invention can be realized mobile terminal in the embodiment of Fig. 1 to Fig. 2 realize it is each A process, to avoid repeating, which is not described herein again.

Referring to Fig. 3, the present invention also provides a kind of charge control methods, the first control applied to above-mentioned battery pack structure Unit MCU1, which comprises

Step 301, the information about power and the battery pack structure of multiple battery units of the battery pack structure are received Voltage detector component U1 line voltage distribution detected.

Wherein, information about power and the line voltage distribution of battery unit are obtained to determine to battery pack structure using high-voltage charging Or low pressure charging.

Step 302, according to the information about power and the line voltage distribution, the first control instruction is sent to charger and is controlled The multiple switch circuit for making the battery pack structure is in first state, keeps the multiple battery unit parallel with one another；Described One control instruction is used to indicate charger and provides charging voltage with first voltage.

Wherein, During high voltage charge sends the first control instruction and control the multiple switching circuit to charger is in institute State first state.When the multiple switching circuit is in first state, the multiple battery unit is parallel with one another, in multiple batteries In the state that unit is parallel with one another, multiple battery units charge jointly；

And/or

Step 303, according to the information about power and the line voltage distribution, the second control instruction is sent to charger and is controlled It makes the multiple switching circuit and is in the second state, make the battery pack of the multiple battery unit composition at least two groups parallel connection, often The group battery pack includes being sequentially connected in series and the identical battery unit of quantity；Second control instruction be used to indicate charger with Second voltage provides charging voltage, and the second voltage is lower than the first voltage.

Wherein, low pressure charging process sends the second control instruction and control the multiple switching circuit to charger is in institute State the second state.When the multiple switching circuit is in the second state, the multiple battery unit composition at least two groups parallel connection Battery pack, battery pack described in every group include being sequentially connected in series and the identical battery unit of quantity, are filled jointly for load supplying or jointly Electricity.

Optionally, described according to the information about power and the line voltage distribution, the first control instruction is sent to charger And the multiple switch circuit for controlling battery pack structure the step of being in first state, comprising:

It detects that the total electricity of the battery unit is lower than the first default value, and route is determined according to the line voltage distribution When impedance meets preset condition,

First control instruction is exported to the second control unit MCU2 of the charger, and to the battery pack structure First switch S1, third switch S3, the 5th switch S5 and the 6th switch S6 export cut-off signal, Xiang Suoshu battery pack respectively Second switch S2, the 4th switch S4, the 7th switch S7 and the 8th switch S8 of structure export closure signal respectively.

Optionally, described according to the information about power and the line voltage distribution, the second control instruction is sent to charger And control the step of the multiple switching circuit is in the second state, comprising:

When the electricity for detecting at least one battery is higher than the second default value, Xiang Suoshu first switch S1, the Three switch S3, the 5th switch S5 and the 6th switch S6 export closure signal respectively, and to the second switch S2 and Four switch S4 export closure signal respectively, and Xiang Suoshu the second control unit MCU2 exports second control instruction.

Optionally, after described the step of sending the first control instruction to charger, further includes:

If detecting, the second battery B2 and the 4th battery B4 of the battery pack structure are load supplying, and the battery pack When the first battery B1 and third battery B3 electricity of structure are full of, Xiang Suoshu second switch S2 and the 4th switch S4 are exported respectively Cut-off signal, and closure signal is exported respectively to the first switch S1 and the 6th switch S6, Xiang Suoshu second controls list First MCU2 exports second control instruction；

If detecting, the second battery B2 and the 4th battery B4 of the battery pack structure are load supplying, and described second is electric When pond B2 and the 4th battery B4 electricity are full of, Xiang Suoshu second switch S2, the 4th switch S4, the switch of the 7th switch S7 and the 8th S8 exports cut-off signal respectively, exports closure signal respectively to third switch S3, the 5th switch S5 and the 6th switch S6, and Second control instruction is exported to the second control unit MCU2；

And when the first battery B1 of the battery pack structure and third battery B3 electricity are full of, the 7th switch S7 of Xiang Suoshu And the 8th switch S8 export closure signal respectively.

Optionally, the method also includes:

The electricity of the battery of the affiliated battery unit of the voltameter is obtained by the voltameter of the battery pack structure；

And according to default rule, when confirming the affiliated battery failure of the voltameter, to the affiliated battery of the voltameter The concatenated switch of the battery of unit exports cut-off signal.

It is optionally, described that the step of line impedance meets preset condition is determined according to the line voltage distribution, comprising:

The output voltage of the charger is obtained by the second control unit MCU2, and obtains the voltage detecting member Part U1 input voltage detected；

Optionally, the method also includes:

When the power supply input circuit of the battery pack structure is electrically connected with the charger, the battery pack structure is controlled MCU power supply circuit be the first control unit MCU1 power supply；Or

When the power supply input circuit is not electrically connected with the charger, the battery of the battery pack structure is controlled as institute State first control unit MCU1 power supply.

With continued reference to Fig. 1, the embodiments of the present invention also provide a kind of charger (i.e. chargers in Fig. 1), comprising:

Second control unit MCU2 receives the control instruction that battery pack structure is sent, is described according to the control instruction Battery pack structure provides charging voltage.

Wherein, control instruction includes the first control instruction and the second control instruction, and the first control instruction, which is used to indicate, fills Electric appliance with first voltage to battery pack structure provide charging voltage, the second control instruction be used to indicate charger with first voltage to Battery pack structure provides charging voltage, and the second voltage is lower than first voltage.

First control unit MCU1 adopts battery pack structure according to the determination of the information about power and line voltage distribution of battery unit It is charged with high-voltage charging or low pressure, During high voltage charge sends the first control instruction to charger and controls the multiple switch electricity Road is in the first state, and low pressure charging process sends the second control instruction to charger and controls the multiple switching circuit In second state.

Optionally, charger further include:

Power output unit OP is electrically connected with the power supply input circuit of battery pack structure, defeated with power supply by outside line Enter circuit electrical connection, to power supply input circuit inputing power.

In embodiments of the present invention, by when the multiple switch circuit of battery pack is in first state, receiving the first control The first control instruction of unit MCU1 processed provides first voltage to battery pack structure, realizes battery pack structure high-voltage charging；And When multiple switch circuit is in the second state, the second control instruction for receiving first control unit MCU1 is mentioned to battery pack structure For second voltage, low pressure charging is realized；The present invention realizes improvements in charge efficiency, power loss when reducing charging, shortens Charging time.

On the other hand, the embodiments of the present invention also provide a kind of charge control methods, applied to such as above-mentioned charger Second control unit MCU2, which comprises

The control instruction that battery pack structure is sent is received, provides charging according to the control instruction for the battery pack structure Voltage.

A kind of hardware structural diagram of Fig. 4 mobile terminal of each embodiment to realize the present invention,

The mobile terminal 400 includes but is not limited to: radio frequency unit 401, network module 402, audio output unit 403, defeated Enter unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, processor The components such as 410 and power supply 411.It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 4 is not constituted Restriction to mobile terminal, mobile terminal may include than illustrating more or fewer components, perhaps combine certain components or Different component layouts.In embodiments of the present invention, mobile terminal include but is not limited to mobile phone, tablet computer, laptop, Palm PC, car-mounted terminal, wearable device and pedometer etc..

Wherein, radio frequency unit 401, for receiving information about power and the institute of multiple battery units of the battery pack structure State the voltage detector component U1 line voltage distribution detected of battery pack structure；

Processor 410, for sending the first control to charger and referring to according to the information about power and the line voltage distribution It enables and the multiple switch circuit for controlling the battery pack structure is in first state, keep the multiple battery unit parallel with one another； First control instruction is used to indicate charger and provides charging voltage with first voltage；

And/or

According to the information about power and the line voltage distribution, the second control instruction is sent to charger and is controlled described more A switching circuit is in the second state, makes the battery pack of the multiple battery unit composition at least two groups parallel connection, electricity described in every group Pond group includes being sequentially connected in series and the identical battery unit of quantity；Second control instruction is used to indicate charger with second voltage Charging voltage is provided, the second voltage is lower than the first voltage.

It should be understood that the embodiment of the present invention in, radio frequency unit 401 can be used for receiving and sending messages or communication process in, signal Send and receive, specifically, by from base station downlink data receive after, to processor 410 handle；In addition, by uplink Data are sent to base station.In general, radio frequency unit 401 includes but is not limited to antenna, at least one amplifier, transceiver, coupling Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 401 can also by wireless communication system and network and other set Standby communication.

Mobile terminal provides wireless broadband internet by network module 402 for user and accesses, and such as user is helped to receive It sends e-mails, browse webpage and access streaming video etc..

Audio output unit 403 can be received by radio frequency unit 401 or network module 402 or in memory 409 The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 403 can also be provided and be moved The relevant audio output of specific function that dynamic terminal 400 executes is (for example, call signal receives sound, message sink sound etc. Deng).Audio output unit 403 includes loudspeaker, buzzer and receiver etc..

Input unit 404 is for receiving audio or video signal.Input unit 404 may include graphics processor (Graphics Processing Unit, GPU) 4041 and microphone 4042, graphics processor 4041 is in video acquisition mode Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out Reason.Treated, and picture frame may be displayed on display unit 406.Through graphics processor 4041, treated that picture frame can be deposited Storage is sent in memory 409 (or other storage mediums) or via radio frequency unit 401 or network module 402.Mike Wind 4042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be The format output that mobile communication base station can be sent to via radio frequency unit 401 is converted in the case where telephone calling model.

Mobile terminal 400 further includes at least one sensor 405, such as optical sensor, motion sensor and other biographies Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment The light and shade of light adjusts the brightness of display panel 4061, and proximity sensor can close when mobile terminal 400 is moved in one's ear Display panel 4061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general For three axis) size of acceleration, it can detect that size and the direction of gravity when static, can be used to identify mobile terminal posture (ratio Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes Sensor 405 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet Meter, thermometer, infrared sensor etc. are spent, details are not described herein.

Display unit 406 is for showing information input by user or being supplied to the information of user.Display unit 406 can wrap Display panel 4061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 4061.

User input unit 407 can be used for receiving the number or character information of input, and generate the use with mobile terminal Family setting and the related key signals input of function control.Specifically, user input unit 407 include touch panel 4071 and Other input equipments 4072.Touch panel 4071, also referred to as touch screen collect the touch operation of user on it or nearby (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 4071 or in touch panel 4071 Neighbouring operation).Touch panel 4071 may include both touch detecting apparatus and touch controller.Wherein, touch detection Device detects the touch orientation of user, and detects touch operation bring signal, transmits a signal to touch controller；Touch control Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 410, receiving area It manages the order that device 410 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc. Seed type realizes touch panel 4071.In addition to touch panel 4071, user input unit 407 can also include other input equipments 4072.Specifically, other input equipments 4072 can include but is not limited to physical keyboard, function key (such as volume control button, Switch key etc.), trace ball, mouse, operating stick, details are not described herein.

Further, touch panel 4071 can be covered on display panel 4061, when touch panel 4071 is detected at it On or near touch operation after, send processor 410 to determine the type of touch event, be followed by subsequent processing device 410 according to touching The type for touching event provides corresponding visual output on display panel 4061.Although in Fig. 4, touch panel 4071 and display Panel 4061 is the function that outputs and inputs of realizing mobile terminal as two independent components, but in some embodiments In, can be integrated by touch panel 4071 and display panel 4061 and realize the function that outputs and inputs of mobile terminal, it is specific this Place is without limitation.

Interface unit 408 is the interface that external device (ED) is connect with mobile terminal 400.For example, external device (ED) may include having Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module Mouthful etc..Interface unit 408 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and By one or more elements that the input received is transferred in mobile terminal 400 or can be used in 400 He of mobile terminal Data are transmitted between external device (ED).

Memory 409 can be used for storing software program and various data.Memory 409 can mainly include storing program area The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as Audio data, phone directory etc.) etc..In addition, memory 409 may include high-speed random access memory, it can also include non-easy The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.

Processor 410 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection A part by running or execute the software program and/or module that are stored in memory 409, and calls and is stored in storage Data in device 409 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place Managing device 440 may include one or more processing units；Preferably, processor 410 can integrate application processor and modulatedemodulate is mediated Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 410.

Mobile terminal 400 can also include the power supply 411 (such as battery) powered to all parts, it is preferred that power supply 411 Can be logically contiguous by power-supply management system and processor 410, to realize management charging by power-supply management system, put The functions such as electricity and power managed.

In addition, mobile terminal 400 includes some unshowned functional modules, details are not described herein.

Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 410, and memory 409 is stored in On memory 409 and the computer program that can run on the processor 410, the computer program are executed by processor 410 Each process of the above-mentioned charge control method embodiment of Shi Shixian, and identical technical effect can be reached, to avoid repeating, here It repeats no more.

The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium Calculation machine program, the computer program realize each process of above-mentioned charge control method embodiment, and energy when being executed by processor Reach identical technical effect, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium, such as only Read memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic or disk etc..

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do There is also other identical elements in the process, method of element, article or device.

Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art The part contributed out can be embodied in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.

The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much Form belongs within protection of the invention.

Claims

1. a kind of battery pack structure characterized by comprising

Wherein, when the multiple switching circuit is in first state, the multiple battery unit is parallel with one another；The multiple When switching circuit is in the second state, the battery pack of the multiple battery unit composition at least two groups parallel connection, battery described in every group Group includes being sequentially connected in series and the identical battery unit of quantity；

Voltage detector component (U1), for detecting the input voltage of the battery pack structure；

First control unit (MCU1), connect, described in reception respectively with the battery unit, switching circuit, voltage detector component The information about power of battery unit and the line voltage distribution of the voltage detector component (U1) detection send the first control to charger It instructs and controls the multiple switching circuit and be in the first state, and/or

Wherein, first control instruction is used to indicate the charger and provides charging voltage, second control with first voltage System instruction is used to indicate the charger and provides charging voltage with second voltage, and the second voltage is lower than the first voltage；

Power supply input circuit is electrically connected with the charger to charge for the battery pack structure；

The voltage detector component (U1), connects with the power supply input circuit；

First power output circuit (LOAD1) and second source output circuit (LOAD2) are electrically connected with load；

Input switching circuit is connected with the power supply input circuit, including is communicated to connect with the first control unit (MCU1) First switch (S1)；

With the second switch (S2), third switch (S3), the 4th switch (S4), the 5th of described control unit (MCU1) communication connection Switch (S5), the 6th switch (S6), the 7th switch (S7) and the 8th switch (S8)；

6th switch (S6) is arranged on first power output circuit (LOAD1)；

Wherein, the battery unit includes the first battery unit, the second battery unit, third battery unit and the 4th battery list Member；

The switching circuit includes: first switch circuit, second switch circuit, third switching circuit and the 4th switching circuit；

First battery unit includes the first battery (B1) and the first battery ground end, and first battery unit passes through the Five switches (S5) are connected with first battery ground end；

The first switch circuit includes the 4th switch (S4), and the 4th switch (S4) is connected with first battery (B1)；

Second battery unit includes the second battery (B2) and the second battery ground end；

The second switch circuit includes the 8th switch (S8), and the 8th switch (S8) is connected with second battery (B2)；

The third battery unit includes third battery (B3) and third battery ground end, and the third battery unit passes through the Three switches (S3) are connected with third battery ground end；

The third switching circuit includes second switch (S2), and the second switch (S2) is connected with the third battery (B3)；

4th battery unit includes the 4th battery (B4) and the 4th battery ground end；4th switching circuit includes the Seven switches (S7), the 7th switch (S7) are connected with the 4th battery (B4).

2. battery pack structure according to claim 1, which is characterized in that further include:

MCU power supply circuit is electrically connected with the power supply input circuit, in the power supply input circuit and charger electricity When connection, power for the first control unit (MCU1)；

The MCU power supply circuit includes voltage-stabiliser tube (D3), and the pressure stabilizing value of the voltage-stabiliser tube (D3) is higher than the list of the battery unit The maximum voltage value of a battery.

3. battery pack structure according to claim 1, which is characterized in that the first switch (S1), second switch (S2), Third switchs (S3), the 4th switch (S4), the 5th switch (S5), the 6th switch (S6), the 7th switch (S7) and the 8th switch (S8) it is switched for NMOS tube.

4. battery pack structure according to claim 1, which is characterized in that the first control unit (MCU1) passes through described The second control unit (MCU2) of charger obtains the output voltage of the charger, and obtains the voltage detector component (U1) Input voltage detected；

And line impedance is determined according to the output voltage and the input voltage.

5. battery pack structure according to claim 1, which is characterized in that the battery unit includes and described first controls The voltameter of unit (MCU1) communication connection；

The first control unit (MCU1) obtains the electricity of the battery of the affiliated battery unit of the voltameter by the voltameter Amount, and according to default rule, when confirming the affiliated battery failure of the voltameter, to the affiliated battery unit of the voltameter The concatenated switch of battery exports cut-off signal.

6. battery pack structure according to claim 1, which is characterized in that the first control unit (MCU1) battery The electric quantity output end of the battery of unit is electrically connected.

7. a kind of charge control method, the first control applied to battery pack structure such as described in any one of claims 1 to 6 Unit (MCU1), which is characterized in that the described method includes:

Receive the information about power of multiple battery units of the battery pack structure and the voltage detecting member of the battery pack structure Part (U1) line voltage distribution detected；

According to the information about power and the line voltage distribution, the first control instruction is sent to charger and controls the battery pack The multiple switch circuit of structure is in first state, keeps the multiple battery unit parallel with one another；First control instruction is used Charging voltage is provided in instruction charger with first voltage；

And/or

According to the information about power and the line voltage distribution, the second control instruction is sent to charger and controls the multiple open Powered-down road is in the second state, makes the battery pack of the multiple battery unit composition at least two groups parallel connection, battery pack described in every group Including being sequentially connected in series and the identical battery unit of quantity；Second control instruction is used to indicate charger and is provided with second voltage Charging voltage；

Wherein, the second voltage is lower than the first voltage.

8. the method according to the description of claim 7 is characterized in that described according to the information about power and the line electricity Pressure is in the step of first state to the multiple switch circuit that charger sends the first control instruction and controls the battery pack structure Suddenly, comprising:

It detects that the total electricity of the battery unit is lower than the first default value, and line impedance is determined according to the line voltage distribution When meeting preset condition,

First control instruction is exported to the second control unit (MCU2) of the charger, and to the battery pack structure First switch (S1), third switch (S3), the 5th switch (S5) and the 6th switch (S6) export cut-off signal respectively, Xiang Suoshu Output is closed respectively for the second switch (S2) of battery pack structure, the 4th switch (S4), the 7th switch (S7) and the 8th switch (S8) Close signal.

9. according to the method described in claim 8, it is characterized in that, described according to the information about power and the line electricity Pressure sends the second control instruction to charger and controls the step of the multiple switching circuit is in the second state, comprising:

When the electricity for detecting at least one battery is higher than the second default value, Xiang Suoshu first switch (S1), third Switch (S3), the 5th switch (S5) and the 6th switch (S6) export closure signal respectively, and to the second switch (S2) And the 4th switch (S4) export closure signal respectively, the second control unit of Xiang Suoshu (MCU2) output second control refers to It enables.

10. according to the method described in claim 8, it is characterized in that, described the step of sending the first control instruction to charger Later, further includes:

If detecting the second battery (B2) of the battery pack structure and the 4th battery (B4) being load supplying, and the battery pack When the first battery (B1) and third battery (B3) electricity of structure are full of, Xiang Suoshu second switch (S2) and the 4th switch (S4) Cut-off signal is exported respectively, and exports closure signal respectively to the first switch (S1) and the 6th switch (S6), to institute It states the second control unit (MCU2) and exports second control instruction；

And when second battery (B2) and the 4th battery (B4) electricity are full of, Xiang Suoshu first switch (S1) output disconnects letter Number, and closure signal is exported respectively to third switch (S3) and the 5th switch (S5).

11. according to the method described in claim 8, it is characterized in that, described the step of sending the first control instruction to charger Later, further includes:

If detecting the second battery (B2) of the battery pack structure and the 4th battery (B4) being load supplying, and described second is electric When pond (B2) and the 4th battery (B4) electricity are full of, Xiang Suoshu second switch (S2), the 4th switch (S4), the 7th switch (S7) with And the 8th switch (S8) export cut-off signal respectively, to third switch (S3), the 5th switch (S5) and the 6th switch (S6) point Not Shu Chu closure signal, and export second control instruction to second control unit (MCU2)；

And when the first battery (B1) of the battery pack structure and third battery (B3) electricity are full of, Xiang Suoshu the 7th is switched (S7) and the 8th switch (S8) exports closure signal respectively.

12. according to the method described in claim 8, it is characterized in that, described determine that line impedance accords with according to the line voltage distribution The step of closing preset condition, comprising:

The output voltage of the charger is obtained by second control unit (MCU2), and obtains the voltage detector component (U1) input voltage detected；

13. the method according to the description of claim 7 is characterized in that further include:

And according to default rule, when confirming the affiliated battery failure of the voltameter, to the affiliated battery unit of the voltameter The concatenated switch of battery export cut-off signal.

14. the method according to the description of claim 7 is characterized in that further include:

When the power supply input circuit of the battery pack structure is electrically connected with the charger, the battery pack structure is controlled MCU power supply circuit is the first control unit (MCU1) power supply；Or

When the power supply input circuit is not electrically connected with the charger, the battery for controlling the battery pack structure is described the One control unit (MCU1) power supply.

15. a kind of mobile terminal characterized by comprising such as battery pack structure described in any one of claims 1 to 6.

16. a kind of mobile terminal characterized by comprising memory, processor and be stored on the memory and can be in institute State the computer program run on processor, when the computer program is executed by the processor realize as claim 7 to Step in charge control method described in any one of 14.