CN109677296A

CN109677296A - A kind of power battery and its control method, electric car

Info

Publication number: CN109677296A
Application number: CN201811600075.8A
Authority: CN
Inventors: 朱道平; 傅振兴
Original assignee: Fafa Automobile (china) Co Ltd
Current assignee: Fafa Automobile (china) Co Ltd
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2019-04-26
Anticipated expiration: 2038-12-26
Also published as: CN109677296B

Abstract

This application discloses a kind of power battery and its control methods, electric car, to solve charging problems existing in the prior art.The program specifically includes that the second end of the first end for being respectively used to connection power supply unit anode and connection power supply unit cathode；At least two battery modules between the first end and a second end are set；The first relay is connected at least two battery modules between adjacent cell mould group, each battery modules are separately connected first end and second end by least one second relay；Each battery modules connect at least one second relay and are serially connected with electric signal sensor in the circuit to be formed；The either end of first relay and/or the second relay is connected with explosion and disconnects device; when causing circuit that short circuit occurs there are adhesion fault with the circuit element in power battery; the circuit that device disconnection has short circuit is disconnected by putting quick-fried corresponding explosion; avoid power battery that the danger of batteries caught fire occurs because of short circuit, to protect power battery.

Description

A kind of power battery and its control method, electric car

Technical field

This application involves power battery technology field more particularly to a kind of power battery and its control methods, electric car.

Background technique

With popularizing for New-energy electric vehicle, the development of direct current rapid nitriding is become more and more important.Especially In order to adapt to the continual mileage increasingly grown, the capacity requirement of the power battery of electric car is also increasing.

It is proposed the high supply voltage of 800V or so, at present to meet the charge requirement of great-capacity power battery.But it is existing Most of Rechargeable vehicle power battery charging voltage (generally 400V or so) and charging modes fix, can not be compatible with High supply voltage and low suppling voltage need additionally to configure transformation system adjustment pressure drop for electric car to match supply voltage.

It needs to find a kind of new power battery and its control program as a result,.

Summary of the invention

The embodiment of the present application provides a kind of power battery and its control method, electric car, to solve in the prior art There are the problem of.

In order to solve the above-mentioned technical problem, the embodiment of the present application adopts the following technical solutions:

A kind of power battery, comprising: be respectively used to the first end of connection power supply unit anode and connect the power supply unit The second end of cathode；At least two battery modules between the first end and the second end are set；

Wherein, the first relay, each battery are connected between adjacent cell mould group at least two battery modules Mould group is separately connected the first end and the second end by least one second relay；

Each battery modules connect at least one described second relay and are serially connected with electric signal in the circuit to be formed Sensor；

The either end of first relay and/or second relay is connected with explosion and disconnects device.

Optionally, the battery modules, specifically include:

Battery module, and, connect the relay mould group of described battery module one end；

Wherein, the either end of the relay mould group is connected with explosion and disconnects device.

Optionally, when the power battery includes two battery modules, wherein

The first relay connected between first battery modules and the second battery modules be intermediate relay, the centre after The either end of electric appliance is connected with explosion and disconnects device；And/or

The second relay connecting with first battery modules is the first auxiliary relay, first auxiliary relay Either end be connected with explosion disconnect device, the second relay connect with second battery modules be second assist relay Device, the either end of second auxiliary relay are connected with explosion and disconnect device.

Optionally, when the power battery includes two battery modules, wherein

The first relay connected between first battery modules and the second battery modules be intermediate relay, the centre after The either end of electric appliance is connected with explosion and disconnects device；

The second relay connecting with first battery modules is the first auxiliary relay, first auxiliary relay Either end be connected with explosion disconnect device, the second relay connect with second battery modules be second assist relay Device, the either end of second auxiliary relay are connected with explosion and disconnect device；

The relay mould group that first battery modules include is the first relay mould group, the first relay mould group Either end is connected with explosion and disconnects device, and the relay mould group that second battery modules include is the second relay mould group, institute The either end for stating the second relay mould group is connected with explosion and disconnects device.

A kind of control circuit of power battery, including exploding in the power battery, and the control power battery Disconnect the controller that device disconnects.

A kind of electric car, the control circuit including the power battery.

A method of the power battery is controlled, which comprises

Detect the electric signal value of each electric signal sensor；

When the electric signal value exception of at least one electric signal sensor, according to electric signal value exception at least One electric signal sensor determines that explosion to be processed disconnects device, and disconnects explosion to be processed and disconnect device.

Optionally, at least one electric signal sensor according to electric signal value exception determines that explosion to be processed is disconnected Opening apparatus specifically includes:

The circuit that there is short circuit is determined according at least one electric signal sensor described in electric signal value exception；

Each element carries out adhesion fault investigation and determines that each element has adhesion in the circuit that there is short circuit After failure, determined according at least one described electric signal sensor and the layout that there is explosion disconnection device in short-circuit circuit Explosion to be processed disconnects device.

If at least two battery modules in parallel work, according at least two telecommunications of electric signal value exception Number sensor determines at least two circuits that there is short circuit；

According to the intermediate relay that each battery modules are connected at least two circuits that there is short circuit, determines to exist and glue The even intermediate relay of failure；

The explosion that the intermediate relay connection of adhesion fault will be present disconnects device and is determined as explosion disconnection dress to be processed It sets；

If at least two battery modules tandem working, by least one electric signal described in electric signal value exception The explosion that the auxiliary relay of each electric signal sensor connection is connected in sensor disconnect device be determined as it is to be processed quick-fried Blow up opening apparatus.

Optionally, it disconnects explosion to be processed and disconnects device, comprising:

The control instruction that the controller of control circuit where receiving power battery issues, and put the quick-fried explosion and disconnect device To disconnect the circuit that there is short circuit.

The embodiment of the present application use at least one above-mentioned technical solution can reach it is following the utility model has the advantages that

Through the above technical solutions, disconnected by increasing electric signal sensor and explosion in the circuit structure of power battery Opening apparatus, it is quick-fried corresponding by putting when causing circuit that short circuit occurs there are adhesion fault with the circuit element in power battery Explosion disconnects device and disconnects the circuit that there is short circuit, avoids power battery that the danger of batteries caught fire occurs because of short circuit, to protect Protect power battery.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 a is one of the structural schematic diagram of power battery provided by the present application；

Fig. 1 b is one of the schematic diagram of internal structure of battery modules in power battery provided by the present application；

Fig. 2 is the inner connecting structure schematic diagram of battery module provided by the present application；

Fig. 3 is the second structural representation of power battery provided by the present application；

Fig. 4 is one of the step schematic diagram of the control method provided by the present application to charge to power battery；

Fig. 5 a is the electrical block diagram that power battery provided by the present application charges in a series arrangement；

Fig. 5 b is the electrical block diagram that power battery provided by the present application is charged with parallel way；

Fig. 6 a- Fig. 6 d be power battery provided by the present application include three battery modules when charging work principle signal Figure；

Fig. 7 a is the operation principle schematic diagram of serial connection charge when power battery provided by the present application includes two battery modules；

Fig. 7 b is the two of the step schematic diagram of the control method provided by the present application to charge to power battery；

Fig. 7 c- Fig. 7 e is respectively that the work of charged in parallel when power battery provided by the present application includes two battery modules is former Manage schematic diagram；

Fig. 8 a is the structural schematic diagram of power battery charging control circuit provided by the present application；

Fig. 8 b is the structural schematic diagram of equivalent inductance element in power battery charging control circuit provided by the present application；

Fig. 9 a- Fig. 9 c is respectively three kinds of schematic diagrames of the structure 1 of power battery charging control circuit provided by the present application；

Figure 10 a- Figure 10 c is respectively third relay in the structure 2 of power battery charging control circuit provided by the present application Connect three kinds of schematic diagrames when the first battery modules anode；

Figure 11 a- Figure 11 c is respectively third relay in the structure 2 of power battery charging control circuit provided by the present application Connect three kinds of schematic diagrames when the first battery modules cathode；

Figure 12 a- Figure 12 c is respectively third relay in the structure 2 of power battery charging control circuit provided by the present application Connect three kinds of schematic diagrames when the second battery modules anode；

Figure 13 a- Figure 13 c is respectively third relay in the structure 2 of power battery charging control circuit provided by the present application Connect three kinds of schematic diagrames when the second battery modules cathode；

Figure 14 is the step schematic diagram of power battery charging control method provided by the present application；

Figure 15 a is the specific implementation step of mode one in power battery charging control method provided by the present application；

Figure 15 b is power battery charging control circuit provided by the present application in the method equalizing voltage based on mode one Electrical block diagram；

Figure 15 c is power battery charging control circuit provided by the present application power battery charged in parallel after equalizing voltage Structural schematic diagram；

Figure 16 a is the specific implementation step of mode two in power battery charging control method provided by the present application；

Figure 16 b is power battery charging control circuit provided by the present application in the method equalizing voltage based on mode two Electrical block diagram；

Figure 16 c is power battery charging control circuit provided by the present application power battery charged in parallel after equalizing voltage Structural schematic diagram；

Figure 17 a is the third structural representation of power battery provided by the present application；

Figure 17 b is two of the schematic diagram of internal structure of battery modules in power battery provided by the present application；

Figure 18 a- Figure 18 d be respectively power battery provided by the present application include two battery modules when several structural representations Figure；

Figure 19 a- Figure 19 c is respectively the control method schematic diagram of power battery provided by the present application；

Figure 20 a- Figure 21 d be respectively power battery provided by the present application include two battery modules when working condition principle Figure.

Specific embodiment

To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.

Below in conjunction with attached drawing, the technical scheme provided by various embodiments of the present application will be described in detail.

It should be understood that power battery involved in the application can be adapted for electric car or other use power battery Electric mechanical product, equipment, the application are not defined the usage scenario of power battery and suitable device, as long as electric Pressure and installation matching.And the power battery in the application still to supply based on electric car, i.e., following embodiment is equal It is illustrated by taking the power battery being useful on electric car as an example.

It should be noted that the charge control scheme of power battery involved in the application is mainly with following power electric For pond, the structure of power battery involved in the application is first introduced below.

It is the structural schematic diagram of power battery provided by the present application referring to Fig.1 shown in a, which specifically includes that

It is respectively used to the first end A of connection power supply unit anode and connects the second end B of the power supply unit cathode, setting At least two battery modules 11 between first end A and second end B, adjacent cell mould group 11 at least two battery modules 11 Between be connected with the first relay 12, each battery modules 11 are separately connected first end A by least one second relay 13 With second end B.In this application, power supply unit had both included the direct-current charging post with positive and negative electrode, also included that can fill exchange The alternating current of electric stake is converted to the Vehicular charger of direct current, it is however generally that, either AC charging or DC charging, power supply The electric energy of equipment can charge to power battery by direct current after high voltage distribution box.The application does not set power supply Standby current work principle is defined.

By the technical solution, at least two battery modules are set in the inside of power battery, and be respectively these batteries Series connection mode and parallel is arranged in mould group, thus, enable the power battery to carry out high pressure in a series arrangement Charging also can carry out low pressure charging with parallel way.In turn, it realizes to the compatibility of high and low supply voltage, does not need additionally to match Transformation system is set, when reducing the power battery even cost of Rechargeable vehicle, and being charged by the power battery of the application, It can automatically switch series and parallel mode according to the different of supply voltage, thus, promote the flexibility and convenience of charging.

Wherein, referring to Fig.1 shown in b, battery modules 11 are specifically included: battery module 111, and, connect the battery mould The relay mould group 112 of 111 one end of block.And the relay mould group 112 further comprises: main relay 112a, preliminary filling relay 112b and preliminary filling resistance 112c.It is illustrated by taking the anode connection relay mould group 112 of battery module 111 as an example: main relay The anode of one end connection battery module 111 of device 112a, the other end connect the first end A of power battery；Preliminary filling relay 112b One end connect preliminary filling resistance 112c, the other end connect power battery first end A；One end of preliminary filling resistance 112c connects preliminary filling Relay 112b, the other end connect the anode of battery module 111.To which preliminary filling relay 112b and preliminary filling resistance 112c be gone here and there It is linked togather, meanwhile, the series circuit of preliminary filling relay 112b and preliminary filling resistance 112c are in parallel with main relay 112a.

It should be noted that above description be only by battery module 111 anode connection relay mould group 112 for, It is real, the scheme of the cathode connection relay mould group 112 of battery module 111 can also be included.In at least two battery modules 11, The internal structure of each battery modules 11 can be consistent, can also be with slight difference.For example, the internal structure of all battery modules 11 It can be the anode connection relay mould group 112 of battery module 111；Alternatively, the internal structure of all battery modules 11 can be with It is the cathode connection relay mould group 112 of battery module 111；Alternatively, the internal structure of percentage of batteries mould group 11 is battery mould The anode connection relay mould group 112 of block 111, the internal structure of percentage of batteries mould group 11 are that the cathode of battery module 111 connects Relay mould group 112.

It should be understood that in the case where the place-exchange of battery module 111 and relay mould group 112, in relay mould group 112 Main relay 112a, preliminary filling relay 112b and preliminary filling resistance 112c series and parallel relationship it is constant, it is understood that there may be connection position It sets and changes, should be adjusted flexibly.

Optionally, in this application, the battery core quantity that battery module includes is identical, and battery core connection type is identical.It considers The technique and technical restriction of cell device, cannot achieve the cell device of single large capacity.It therefore, generally can be by will be multiple Battery core is combined into the battery module of required capacity.The battery core quantity for including in each battery module in the application is identical, Er Qieduo A battery core connection type is identical.For example, each battery module 111 may include 15 identical capacity referring to shown in Fig. 2 Battery core is denoted as battery core 1- battery core 15；Wherein, battery core 1- battery core 5 is connected, and battery core 6- battery core 10 is connected, concatenated by two later Structure is in parallel, connects with battery core 11- battery core 15, the battery module 111 of capacity needed for being formed.Wherein, it shows, defines for convenience Lateral connection relationship indicates in parallel, and longitudinally connected relationship indicates series connection.The embodiment is only to illustrate, the practical packet of each battery module The battery core quantity contained is not limited to 15, can arbitrarily set according to demand.

In the above scheme, related power battery can be useful in institute according to the update of actual demand and technology The charging field of voltage range that there may be or occur.And in view of current power supply voltage range is 400V or so, it should Low-voltage possibly can not well adapt to the demand of current quick charge, therefore, the high voltage supply voltage of 800V or so meet the tendency of and It is raw.So, when the supply voltage of the supply voltage and 800V or so that only provide 400V or so on the market, power electric in the application Pond can be used with flowering structure:

Referring to shown in Fig. 3, which includes two battery modules, wherein the first battery modules 21 and the second battery mould Intermediate relay 23 is connected between group 22, the first battery modules 21 are separately connected power battery by the first auxiliary relay 24 First end A and second end B, the second battery modules 22 are separately connected the first end of power battery by the second auxiliary relay 25 A and second end B.Wherein, the internal structure of the first battery modules 21 and the second battery modules 22 is the same as above-mentioned Fig. 1 introduction, including electricity Pond module, relay mould group.

Optionally, in the structure of power battery shown in Fig. 3, the threshold of the first battery modules 21 and the second battery modules 22 Threshold voltage range is 250V-450V.In this way, when the first battery modules 21 are connected with the second battery modules 22, power battery Threshold voltage ranges be 500V-900V.When the first battery modules 21 are in parallel with the second battery modules 22, the threshold of power battery Threshold voltage range is 250V-450V.

It, can be by the way that battery modules be carried out with the switching of series and parallel come real in the structure of the above-mentioned power battery referred to It is now compatible with the purpose of different power voltage, still, it is contemplated that in the actual use process, especially power battery uses (logical Cross power battery supply vehicle power traveling or supply other equipment power operation) after a period of time, these battery modules Residual voltage situation is inconsistent, if carrying out charged in parallel, the moment of auxiliary relay closure, electricity to these battery modules at this moment Press higher battery modules that can charge to the lower battery modules of voltage, and very due to the internal resistance of battery module in battery modules It is small, very big electric current can be generated in moment, that is, is shoved, for example, it is assumed that the pressure difference of two battery modules is 6V, each battery modules Internal resistance be 150 bold and unconstrained Europe, then what moment in parallel generated, which shove, can achieve 20A (ampere), it is however generally that, electric current is more than 5A will Battery modules and circuit structure are caused to damage.

For this purpose, the power battery that the application is based on can be charged by following control program, referring to shown in Fig. 4, It specifically includes that

Step 31: when supply voltage is first voltage, being closed the first relay connected between adjacent cell mould group, break All second relays are opened, so that at least two battery modules serial connection charges of power battery；Wherein, the first voltage is The sum of the threshold voltage of at least two battery modules.

In this application, it the range of first voltage and is not construed as limiting, generally 800V or so or 800V or more, to adapt to High-voltage charge demand.Similarly, the application is also not construed as limiting the range of second voltage, generally 800V or less.First electricity Pressure is higher than second voltage.

Referring to shown in Fig. 5 a, which includes battery modules C1, battery modules C2 ... battery modules Cn, wherein It is connected with the first relay D1 between battery modules C1 and battery modules C2, is connected between battery modules C2 and battery modules C3 Second relay D2 ..., in this way, battery modules C1- battery modules Cn can be closed by multiple first relays of connection Shi Shixian series connection.The second all at this time relays disconnect.When supply voltage is first voltage, power battery can be controlled automatically The first relay closure is made, the second all relays, this n battery modules of battery modules C1- battery modules Cn are then turned off It charges in series.

Step 32: when supply voltage is second voltage, judging whether the voltage of each battery modules is identical；If so, The first relay connected between adjacent cell mould group is disconnected, all second relays are closed, so that power battery is at least Two battery modules in parallel chargings；If it is not, then disconnecting the first relay connected between adjacent cell mould group, and control adjustment institute There is the voltage of battery modules identical, so that at least two battery modules in parallel of power battery charge；Wherein, second electricity Pressure is the threshold voltage of the battery modules.

Referring to shown in Fig. 5 b, battery modules C1 is respectively connected to first end A by the second relay E1 in the power battery First end A and second end B ..., battery mould are respectively connected to by second relay E2, E2 ' with second end B, battery modules C2 Group Cn by the second relay En is respectively connected to first end A and second end B, in this way, battery modules C1- battery modules Cn can be with It is realized by the second relay respectively connected in closure in parallel.When supply voltage is second voltage and each battery modules When voltage is identical, all first relays are disconnected, are closed all second relays, this n electricity of battery modules C1- battery modules Cn Chi Mo group charges in parallel.When supply voltage is second voltage and there are when different voltages, then disconnect all the One relay, and control adjust all battery modules voltage it is identical so that the battery modules C1- battery modules of power battery Cn charged in parallel.

A kind of achievable scheme is to realize that control adjusts all battery moulds using itself circuit structure of power battery The voltage of group is identical, in order to which at least two battery modules of power battery can be with charged in parallel.

Optionally, step 32 is specific to execute when the voltage that control adjusts all battery modules is identical are as follows:

The first step determines the maximum battery modules of voltage and the smallest battery mould of voltage at least two battery modules Group.

Second step successively carries out charged in parallel to other battery modules other than the maximum battery modules of voltage, until with The voltage of the maximum battery modules of voltage is identical.

Further, charged in parallel is successively carried out to other battery modules other than the maximum battery modules of voltage, it is specific to wrap It includes:

Corresponding second relay of the smallest battery modules of sealing voltage；

When the voltage of the smallest battery modules of the voltage reaches the voltage of the small battery modules of voltage time, successively to electricity Other battery modules other than maximum battery modules are pressed to carry out charged in parallel.

It is second voltage and battery modules to above-mentioned supply voltage so that power battery includes three battery modules as an example below There is different be illustrated in voltage.

Referring to shown in Fig. 6 a, which includes battery modules C1, battery modules C2 and battery modules C3；Battery modules It is connected with the first relay D1 between C1 and battery modules C2, the first relay is connected between battery modules C2 and battery modules C3 Device D2；Battery modules C1 is respectively connected to the first end A and second end B of power battery, battery modules by the second relay E1 C2 is respectively connected to the first end A and second end B of power battery by the second relay E2, and battery modules C3 passes through the second relay Device E3 divides the first end A and second end B for being half connected to power battery.

When supply voltage is the voltage difference of second voltage and battery modules, first, it is determined that the maximum battery mould of voltage Group and the smallest battery modules of voltage, it is assumed that the voltage of battery modules C1 therein is maximum, and the voltage of battery modules C2 takes second place, electricity The voltage of Chi Mo group C3 is minimum.So, it according to shown in Fig. 6 b, can first charge to battery modules C3, i.e. closure battery mould Second relay E3 of group C3 connection, disconnects the second relay E1 and second relay E2, E2 '；Referring to shown in Fig. 6 c, work as battery When the voltage of mould group C3 charges to identical as the voltage of battery modules C2, the second relay E2 of closure battery modules C2 connection, E2 ' still keeps the second relay E1 to disconnect, and then battery modules C1 and battery modules C2 charged in parallel；Referring to shown in Fig. 6 d, When the voltage of battery modules C2 and battery modules C3 are charged to it is identical as the voltage of battery modules C1 when, closure battery modules C1 connect The the second relay E1 connect, and then battery modules C1, battery modules C2 and battery modules C3 charging parallel with one another.To avoid The voltage being likely to occur due to charged in parallel it is inconsistent and lead to that momentary charge electric current is larger and the problem of damage circuit element, Improve charge efficiency and safety.

It should be understood that in existing power supply unit, largely or based on the supply voltage of 400V or so, in order to adapt to The demand of fast-speed direct current charging, has gradually appeared the supply voltage of 800V or so, below just to be mainly used for adaptation 400V or so Low-voltage power supply equipment and 800V or so high voltage work order equipment power battery for describe in detail.

Referring to shown in Fig. 7 a, which mainly includes first end A and second end B, battery module 41 and battery module Intermediate relay 43 is provided between 42, the other end of battery module 41 is connected with main positive relay 44, the main positive relay Device 44 is in parallel with positive preliminary filling relay 45, meanwhile, there are also a preliminary filling resistance and positive preliminary filling relay 45 to be connected in series；Accordingly Ground, the other end of battery module 42 are connected with main cathode relay 46, the main cathode relay 46 and cathode preliminary filling relay 47 Parallel connection, meanwhile, there are also another preliminary filling resistance and cathode preliminary filling relay 47 to be connected in series.The other end of battery module 41 also passes through Auxiliary negative relay 49 is connected to second end B, and the other end of battery module 42 also passes through auxiliary positive relay 48 and is connected to First end A.Wherein, battery module 41, main positive relay 44 and positive preliminary filling relay 45 and preliminary filling resistance collectively form First battery modules M1, battery module 42, main cathode relay 46 and cathode preliminary filling relay 47 and the common structure of preliminary filling resistance At the second battery modules M2.

Under normal circumstances, the voltage of battery module 41 and battery module 42 is identical, battery module 41 and battery mould The threshold voltage ranges of block 42 all can be 250V-450V.When being powered using power battery, battery module 41 and battery Module 42 is in series connection, output voltage range 500V-900V.

It is illustrated so that power battery is electric car power supply as an example, when vehicle needs normally travel, in power battery Portion can first be closed main cathode relay 46 and intermediate relay 43, be closed positive preliminary filling relay 45, then to avoid direct Power supply is damaged caused by power supply circuit.After resistance after connect with positive preliminary filling relay 45 is connected, reaches preliminary filling threshold value, close Main positive relay 44 is closed, and disconnects positive preliminary filling relay 45；And cathode preliminary filling relay 47, auxiliary negative relay 49, All in off-state, power battery passes through the sum of battery module 41 and the voltage of battery module 42 and is auxiliary positive relay 48 Electric car supply of electrical energy.

When power battery after a period of use, be not enough to continue a journey, therefore, it is necessary to be the power battery charging.Due to In actual use process, each battery does not ensure that absolute consistency, leads to the electricity of each battery module real surplus Amount, voltage are inconsistent, in order to avoid the damage to element each in battery charger, can be filled in the following ways Electricity.

Referring to shown in Fig. 7 b, which be may comprise steps of:

Step 51: monitoring supply voltage.

Step 52: judging whether supply voltage is more than or equal to first voltage, if so, thening follow the steps 53, otherwise, execute step Rapid 54.

Step 53: the intermediate relay 43 of closure connection the first battery modules M1 and the second battery modules M2 disconnect auxiliary Cathode relay 49, auxiliary positive relay 48, so that the first battery modules M1 and the second battery modules M2 serial connection charge.Its In, first voltage is the sum of the threshold voltage of the first battery modules M1 and the second battery modules M2.

Referring now still to shown in Fig. 7 a, dotted portion is circuit route in the conductive state, to reaching the shape since charging State, intermediate closure, the disconnection process that can pass through the elements such as preliminary filling relay, auxiliary relay, this will not be repeated here.

Step 54: judge whether the voltage of the first battery modules M1 is identical as the voltage of the second battery modules M2, if they are the same, 55 are thened follow the steps, otherwise, executes step 56.

Step 55: intermediate relay 43 is disconnected, auxiliary negative relay 49, auxiliary positive relay 48 are closed, so that First battery modules M1 and the second battery modules M2 charged in parallel, until being full of.

Specific charging conducting route is referring to shown in Fig. 7 c.

Step 56: intermediate relay 43 is disconnected, if the voltage of the first battery modules M1 is greater than the electricity of the second battery modules M2 Pressure is then closed the corresponding auxiliary negative relay 49 of the second battery modules M2, disconnects the corresponding auxiliary of the first battery modules M1 just Pole relay 48, to charge to the second battery modules M2；

If the voltage of the first battery modules M1 is closed M1 pairs of the first battery modules less than the voltage of the second battery modules M2 The auxiliary positive relay 48 answered disconnects the corresponding auxiliary negative relay 49 of the second battery modules M2, to the first battery mould Group M1 charges.

Specific charging conducting route is referring to Fig. 7 d and Fig. 7 e.

Step 57: when the voltage of the second battery modules M2 reaches the voltage of the first battery modules M1, alternatively, working as institute When stating the voltage of the first battery modules M1 and reaching the voltage of the second battery modules M2,55 are gone to step.

As a result, by above-mentioned charge control scheme, difference can be adapted to according to power battery structure provided by the present application The power supply unit of voltage realizes the charging compatibility to high-low voltage power supply unit.It does not need additionally to increase transformation system, Flexibility and convenience are improved, cost and vehicle weight are reduced.Moreover, it is also possible to each battery modules voltage not With in the case where, individually charges to the lower battery modules of voltage, then successively carry out charged in parallel again, parallel connection is avoided to fill Battery modules voltage is different and cause to damage to cell device when electric, and improves charge efficiency and safety.

In above-mentioned achievable scheme, although can be by individually charging to the lower battery modules of voltage, so Successively carry out charged in parallel again afterwards, still, this Adjusted Option is ideal, since it is considered that power involved in the application Battery is mainly used in electric car field, and while charging to electric car often uses fast charge mode, voltage ramp-up rate Comparatively fast, then, when individually charging to the lower battery modules of voltage, the charging time can not be accurately controlled, by the electricity (charged in parallel is switched to by individually charging) when pond modules in parallel enters parallel circuit, the voltage of the battery modules is possible to It has been more than the higher battery modules of original voltage, in this way, voltage measurement and switching moment when individually charging to battery modules Determination, propose higher requirement, operation difficulty is higher, and still be easy to cause and shove.

For this purpose, present applicant proposes a kind of power battery charging control programs, by equivalent inductance element and at least two Battery modules series connection, and carried out using voltage of the equivalent inductance element at least two battery modules being cascaded Weighing apparatus can not be mutated, since the change of the electric current of circulation inductance element is very slow in this manner it is possible to borrow equivalent inductance element The principle features, equilibrium treatment is carried out to the voltage of at least two battery modules being cascaded, then carries out parallel connection again Charging.It is thus possible to as far as possible by charged in parallel when connection transient current be minimized, even 0, effectively avoid gushing with this Flow phenomenon safely and effectively realizes the electric voltage equalization to battery modules.

Another achievable scheme, this application provides a kind of power battery charging control circuits, realize control adjustment The voltage of all battery modules is identical, in order to which at least two battery modules of power battery can be with charged in parallel.

Referring to shown in Fig. 8 a, the power battery charging control circuit specifically include that power battery 81, power supply unit 82, etc. Imitate inductance element 83；

Wherein, the structure of the power battery 81 and its internal structure member can refer to Fig. 1 a, Fig. 1 b, Fig. 2 and Shown in Fig. 3, this will not be repeated here；

At least two battery modules 811 and 812 between the first end A and second end B of the power battery 81 are set, Series circuit is capable of forming with the equivalent inductance element 83.

Wherein, one end of power supply unit 82 is connected to the first end A of power battery 81, and the other end is connected to power battery 81 Second end B.

It is connected as a result, by at least two battery modules formation being cascaded in equivalent inductance element and power battery Circuit, equivalent inductance element can use the inductance characteristic of itself, the voltage of balanced at least two battery modules, in turn, Inrush current phenomenon is avoided, safely and effectively realizes the electric voltage equalization to battery modules, in order at least two batteries of power battery Mould group can be with charged in parallel.

Preferably, the equivalent inductance element at least may include: motor stator coil mould group and electric machine controller mould group；

Wherein, the motor stator coil mould group includes at least two stator coils, at least two stator coil One end of each stator coil is connected to connects end altogether, and the other end is respectively connected to corresponding controller in the motor control mould group Circuit；

At least be parallel in the electric machine controller mould group with the same number of controller circuitry M of stator coil, and it is described One end of electric machine controller mould group connects the first end of the power battery, and the other end connects the second end of the power battery.

Specifically, referring to shown in Fig. 8 b, which at least may include 831 He of electronics stator coil mould group Electric machine controller mould group 832；Wherein, electronics stator coil mould group 831 includes three stator coils (respectively L1, L2, L3), electricity Machine controller mould group 832 includes three controller circuitrys (respectively M1, M2, M3) in parallel, wherein each parallel branch is (i.e. Controller circuitry M) on be both provided with two controllers (respectively Q1, Q2, Q3, Q4, Q5, Q6)；The one of these three stator coils End is connected to connects end altogether, and in fact, which is exactly the connects end altogether of these three stator coils, the other end point of three stator coils It is not connected in electric machine controller mould group 832 corresponding controller circuitry M, is specifically connected to two controls in corresponding controllers circuit Between device processed；And in electric machine controller mould group 832 further include the capacitor C in parallel with controller circuitry, and electric machine controller mould group The first end A of 832 one end connection power battery, the second end of the other end connection power battery of electric machine controller mould group 832 B。

Wherein, controller Q in figure 8b is specifically as follows the switch element of double-direction control conducting, may be set to be two Pole pipe or triode, the application are defined not to this.

It should be understood that in this application, the equivalent inductance element can be additional increased equivalent inductance element, for example, Inductance coil or other elements that can be equivalent to inductance.

And in the application, the electrode controller mould group and motor stator coil that preferably itself have with electric car inside Mould group, so that simplified control circuit, saves cost.

Based on control circuit shown in above-mentioned Fig. 8 a, the control circuit of the application specifically can be implemented as following at least two Structure.

Structure 1: the power battery can pass through controller circuitry any in the electric machine controller mould group and the electricity Any two stator coil is connected in machine stator coil mould group.

Specifically, referring to shown in Fig. 9 a, which includes: power battery 81, connects power electric The electric machine controller mould group 832 of pond 81 first end A and second end B, and the motor stator being connect with electric machine controller mould group 832 Coil mould group 831；To in power battery 81 the first battery modules 811 and the second battery modules 812 carry out electric voltage equalization at When reason, in the charging control circuit, the first relay between the first battery modules 811 and the second battery modules 812 is closed, into And the first battery modules 811 are serially connected with the second battery modules 812；Any controller electricity in electric machine controller mould group 832 First controller circuitry M1 connecting in road M, such as Fig. 9 a with first end A is closed controller Q1 therein, meanwhile, selection The Article 2 controller circuitry M2 connecting with second end B, is closed controller Q4 therein, thus, it will be first in power battery 81 Battery modules 811 and the second battery modules 812 are serially connected, by the controller Q1 and controller Q4 of closure, with stator Coil L1 and stator coil L2 forms series loop.

It should be understood that Fig. 9 a is only the illustration to structure 1, however it is not limited to which the control circuit can also pass through closure Other controllers realize concatenating for the first battery modules 811 and the second battery modules 812 and stator coil.

For example, referring to shown in Fig. 9 b, the first relay between the first battery modules 811 and the second battery modules 812 is closed It closes, and then the first battery modules 811 are serially connected with the second battery modules 812；In electric machine controller mould group 832 with first end First controller circuitry M1 of A connection is closed controller Q1 therein, meanwhile, select the Article 3 control connecting with second end B Device circuit M3 processed is closed controller Q6 therein, thus, by the first battery modules 811 in power battery 81 and the second battery mould Group 812 is serially connected, and by the controller Q1 and controller Q6 of closure, is formed and is gone here and there with stator coil L1 and stator coil L3 Join circuit.

For another example, referring to shown in Fig. 9 c, the first relay between the first battery modules 811 and the second battery modules 812 is closed It closes, and then the first battery modules 811 are serially connected with the second battery modules 812；In electric machine controller mould group 832 with first end The Article 2 controller circuitry M2 of A connection is closed controller Q3 therein, meanwhile, select the Article 3 control connecting with second end B Device circuit M3 processed is closed controller Q6 therein, thus, by the first battery modules 811 in power battery 81 and the second battery mould Group 812 is serially connected, and by the controller Q3 and controller Q6 of closure, is formed and is gone here and there with stator coil L2 and stator coil L3 Join circuit.

Moreover, in this application, two battery modules shown in Fig. 9 a- Fig. 9 c are also not necessarily limited to, it can also be to three or three A above battery modules carry out voltage balance control adjustment.

Structure 2: the control circuit, further includes: third relay；One end of the third relay connects any battery The anode of mould group, the other end accesses motor stator coil mould group by harness, and can pass through the stator line connected when access The controller circuitry that any stator coil other than circle is connected, connect with the cathode of other battery modules；Alternatively,

The cathode of one end connection any battery mould group of the third relay, the other end access motor stator by harness Coil mould group, and the controller electricity that any stator coil other than the stator coil connected when access is connected can be passed through Road is connect with the anode of other battery modules.

-- third relay connects the first battery modules anode

Specifically, referring to Fig.1 shown in 0a, based on control circuit shown in Fig. 8 a, further includes: third relay 84, it is described One end of third relay 84 connects the anode of the first battery modules 811, and the other end accesses motor stator coil mould by harness N Group 831, and the Article 2 controller that the stator coil L2 other than the stator coil L1 connected when access is connected can be passed through Circuit M2 is connect with the anode of the second battery modules 812；In the control circuit, controller Q3 closure, third relay 84 is closed It closes, and the first battery modules 811 of connection or the second relays (S2, S3 and S4 in such as Figure 10 a) of the second battery modules 812 close It closes, S5 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

Referring to Fig.1 shown in 0b, one end of the third relay 84 connects the anode of the first battery modules 811, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 3 controller circuitry M3 that coil L3 is connected is connect with the anode of the second battery modules 812；In the control circuit, control Device Q5 processed closure, third relay 84 are closed, and the first battery modules 811 of connection or the second battery modules 812 second after Electric appliance (S2, S3 and S4 in such as Figure 10 b) closure, S5 is disconnected, between the first battery modules 811 and the second battery modules 812 The first relay S1 disconnect.

Referring to Fig.1 shown in 0c, one end of the third relay 84 connects the anode of the first battery modules 811, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 2 controller circuitry M2 that the Article 3 controller circuitry M3 and stator coil L2 that coil L3 is connected are connected, with The anode connection of two battery modules 812；In the control circuit, controller Q5, controller Q3 closure, third relay 84 are closed, And the second relay (S2, S3 and S4 in such as Figure 10 c) closure of the first battery modules 811 of connection or the second battery modules 812, S5 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

-- third relay connects the first battery modules cathode

Referring to Fig.1 shown in 1a, based on control circuit shown in Fig. 8 a, further includes: third relay 84, the third relay One end of device 84 connects the cathode of the first battery modules 811, and the other end accesses motor stator coil mould group 831 by harness N, and The Article 2 controller circuitry M2 that the stator coil L2 other than the stator coil L1 connected when access is connected can be passed through, with The cathode of second battery modules 812 connects；In the control circuit, controller Q4 closure, third relay 84 is closed, and connection The second relay (S4, S3 and S5 in such as Figure 11 a) of first battery modules 811 or the second battery modules 812 closure, S2 are disconnected, The first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

Referring to Fig.1 shown in 1b, one end of the third relay 84 connects the cathode of the first battery modules 811, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 3 controller circuitry M3 that coil L3 is connected, connect with the cathode of the second battery modules 812；In the control circuit, control Device Q6 processed closure, and the first battery modules 811 of connection or the second battery modules 812 the second relay (S4 in such as Figure 11 b, S3 and S5) it is closed, S2 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected It opens.

Referring to Fig.1 shown in 1c, one end of the third relay 84 connects the cathode of the first battery modules 811, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 2 controller circuitry M2 that the Article 3 controller circuitry M3 and stator coil L2 that coil L3 is connected are connected, with The cathode of two battery modules 812 connects；In the control circuit, controller Q4, controller Q6 closure, and the first battery mould of connection The second relay (S4, S3 and S5 in such as Figure 11 b) of group 811 or the second battery modules 812 closure, S2 are disconnected, and are located at the first electricity The first relay S1 between Chi Mo group 811 and the second battery modules 812 is disconnected.

-- third relay connects the second battery modules anode

Specifically, referring to Fig.1 shown in 2a, based on control circuit shown in Fig. 8 a, further includes: third relay 84, it is described One end of third relay 84 connects the anode of the second battery modules 812, and the other end accesses motor stator coil mould by harness N Group 831, and the Article 2 controller that the stator coil L2 other than the stator coil L1 connected when access is connected can be passed through Circuit M2 is connect with the anode of the first battery modules 811；In the control circuit, controller Q3 closure, third relay 84 is closed It closes, and the first battery modules 811 of connection or the second relays (S2, S3 and S5 in such as Figure 12 a) of the second battery modules 812 close It closes, S4 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

Referring to Fig.1 shown in 2b, one end of the third relay 84 connects the anode of the second battery modules 812, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 3 controller circuitry M3 that coil L3 is connected is connect with the anode of the first battery modules 811；In the control circuit, control Device Q5 processed closure, third relay 84 are closed, and the first battery modules 811 of connection or the second battery modules 812 second after Electric appliance (S2, S3 and S5 in such as Figure 12 b) closure, S4 is disconnected, between the first battery modules 811 and the second battery modules 812 The first relay S1 disconnect.

Referring to Fig.1 shown in 2c, one end of the third relay 84 connects the anode of the second battery modules 812, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 2 controller circuitry M2 that the Article 3 controller circuitry M3 and stator coil L2 that coil L3 is connected are connected, with The anode connection of one battery modules 811；In the control circuit, controller Q5, controller Q3 closure, third relay 84 are closed, And the second relay (S2, S3 and S5 in such as Figure 12 c) closure of the first battery modules 811 of connection or the second battery modules 812, S4 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

-- third relay connects the second battery modules cathode

Referring to Fig.1 shown in 3a, based on control circuit shown in Fig. 8 a, further includes: third relay 84, the third relay One end of device 84 connects the cathode of the second battery modules 812, and the other end accesses motor stator coil mould group 831 by harness N, and The Article 2 controller circuitry M2 that the stator coil L2 other than the stator coil L1 connected when access is connected can be passed through, with The cathode of first battery modules 811 connects；In the control circuit, controller Q4 closure, third relay 84 is closed, and connection The second relay (S2, S4 and S5 in such as Figure 13 a) of first battery modules 811 or the second battery modules 812 closure, S3 are disconnected, The first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected.

Referring to Fig.1 shown in 3b, one end of the third relay 84 connects the cathode of the second battery modules 812, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 3 controller circuitry M3 that coil L3 is connected, connect with the cathode of the first battery modules 811；In the control circuit, control Device Q6 processed closure, and the first battery modules 811 of connection or the second battery modules 812 the second relay (S2 in such as Figure 13 b, S4 and S5) it is closed, S3 is disconnected, and the first relay S1 between the first battery modules 811 and the second battery modules 812 is disconnected It opens.

Referring to Fig.1 shown in 3c, one end of the third relay 84 connects the cathode of the second battery modules 812, the other end Motor stator coil mould group 831 is accessed by harness N, and the stator other than the stator coil L1 connected when access can be passed through The Article 2 controller circuitry M2 that the Article 3 controller circuitry M3 and stator coil L2 that coil L3 is connected are connected, with The cathode of one battery modules 811 connects；In the control circuit, controller Q4, controller Q6 closure, and the first battery mould of connection The second relay (S2, S4 and S5 in such as Figure 13 c) of group 811 or the second battery modules 812 closure, S3 are disconnected, and are located at the first electricity The first relay S1 between Chi Mo group 811 and the second battery modules 812 is disconnected.

It should be understood that in this application, third relay 84 is not limited by aforesaid way access stator coil L1, can be with Access stator coil L2 or stator coil L3.

In above-mentioned all kinds of control circuits, it can be equivalent to inductance element by two stator coils, come to being connected on back The first battery modules and the second battery modules in road carry out voltage balance control adjustment, can also pass through three stator coils etc. The inductance element of effect carries out voltage balance control tune to the first battery modules and the second battery modules connected in the loop Whole, the application is defined not to this.

In addition, the electric car includes power mentioned by above-described embodiment present invention also provides a kind of electric car Battery charge control circuit.Specifically, the wiring of power battery charging control circuit and the arrangement of circuit element, it can basis The master control circuit of electric car carries out rational deployment, and the application is defined not to this, as long as can be realized above-mentioned power electric Pond charging control circuit.

Correspondingly, present invention also provides the charging controls of power battery charging control circuit mentioned by a kind of couple of the application Method processed, in fact, this method can be considered as concrete operations of the step 32 when the voltage that control adjusts all battery modules is identical； Referring to Fig.1 shown in 4, the charge control method is specifically included that

Step 141: in the case where determining the different situation of voltage of each battery modules, the first of the power battery is set At least two battery modules between end and second end, connect with the equivalent inductance element, at least two battery modules Pass through the equivalent inductance element equalizing voltage；

Step 142: when the pressure difference of at least two battery modules reaches default trimming threshold, disconnecting described at least two Connection between a battery modules and the equivalent inductance element, and disconnect the first relay connected between adjacent cell mould group Device is closed all two relays, so that at least two battery modules in parallel of power battery charge.

It should be understood that in this application, default trimming threshold be can be based on experience value or the obtained voltage of accurate calculation Difference, for example, the pressure difference of two battery modules is not more than 5V or 1V.It specifically can be real according to charging control circuit Existing precision and adjustment capability determine.

Optionally, at least two battery modules between the first end and second end of the power battery are set, and it is described The series connection of equivalent inductance element, specifically includes:

It is closed a controller in the electric machine controller mould group in any two controller circuitrys, disconnects the motor Other controllers in controller mould group；Any two stator coil in the motor stator coil mould group passes through the motor The controller being closed in controller mould group is formed by controller circuitry, connects at least two battery modules, and control Adjust the electric voltage equalization of at least two battery modules.

Further, when at least two battery modules and equivalent inductance element are connected on a closed circuit, specifically may be used To be carried out selecting corresponding control method according to control circuit；The case where for structure 1, can choose the progress of following manner one Control adjustment, the case where for structure 2, can choose mode two and carries out control adjustment.

Mode one:

It is closed the first relay connected between at least two battery modules, so that at least two batteries mould Group is connected by first relay；

Any two stator coil in the motor stator coil mould group in the electric machine controller mould group by being closed Controller be formed by controller circuitry, closed circuit is formed at least two battery modules that are cascaded, with control Adjust the electric voltage equalization of at least two battery modules.

Specifically, referring to Fig.1 shown in 5a, for the power battery charging control circuit shown in Fig. 9 a, the charge control Method mainly comprises the steps that

Step 151: the first relay S1 connected between the first battery modules 811 of closure and the second battery modules 812 is closed Hop controller Q1 and controller Q4, other all controllers and other all second relays disconnect.

It is specifically referred to shown in Figure 15 b, during being somebody's turn to do, stator coil L1 and stator coil L2 is utilized and itself cannot be mutated Characteristic, it is ensured that generate euqalizing current in the series loop, avoid the generation shoved.

Step 152: whether the circulating current of the first relay S1 of detection is less than threshold value, if circulating current is less than threshold value, Execute step 153；Otherwise, the state for still keeping step 151, is not processed.

Step 153: all second relays of closure are then turned off the first relay S1 and controller Q1 and controller Q4。

Referring in particular to Figure 15 c, the first battery modules 811 are in parallel with the second battery modules 812, at this point, power supply unit is opened, Charged in parallel can be carried out to the first battery modules 811 and the second battery modules 812.

It does not need to increase new element in the program, it can realize equal to the voltage of battery modules each in power battery Weighing apparatus control adjustment, is realized more flexible.

Mode two:

Disconnect the first relay connected between at least two battery modules, the second relay of closing section, so that Obtain part second relay series connection of at least two battery modules by closure；

The third relay is described by any two stator coil in harness and the motor stator coil mould group The controller being closed in electric machine controller mould group is formed by controller circuitry, and at least two battery moulds being cascaded Group forms closed circuit, to control the electric voltage equalization for adjusting at least two battery modules.

Specifically, referring to Fig.1 shown in 6a, for the power battery charging control circuit shown in Figure 10 a, the charge control Method mainly comprises the steps that

Step 161: the first relay S1 connected between the first battery modules 811 and the second battery modules 812 is disconnected, with And the second relay S5；Be closed the second relay S2, the second relay S4, the second relay S5, controller Q3 and third after Electric appliance 84.

It is specifically referred to shown in Figure 16 b, during being somebody's turn to do, stator coil L1 and stator coil L2 is utilized and itself cannot be mutated Characteristic, it is ensured that generate euqalizing current in the series loop, avoid the generation shoved.

Step 162: whether the circulating current of detection third relay 84 is less than threshold value, if circulating current is less than threshold value, Execute step 163；Otherwise, it is not processed.

Step 163: all second relays of closure are then turned off third relay 84 and controller Q3.

Referring in particular to Figure 16 c, the first battery modules 811 are in parallel with the second battery modules 812, at this point, power supply unit is opened, Charged in parallel can be carried out to the first battery modules 811 and the second battery modules 812.

Series circuit, stator are formed by least two battery modules being cascaded in stator coil and power battery Coil can use the inductance characteristic of itself, and the voltage of balanced at least two battery modules avoids inrush current phenomenon in turn, Safely and effectively realize the electric voltage equalization to battery modules, in order to power battery at least two battery modules can parallel connection fill Electricity.

In fact, based on any technical solution shown in above-mentioned Fig. 1 a- Figure 16 c, the application is further improved power battery, mentions A kind of new power battery has been supplied, explosion is specifically increased in the circuit structure of power battery and disconnects device and electric signal biography Sensor, it is quick-fried corresponding quick-fried by putting when causing circuit that short circuit occurs there are adhesion fault with the circuit element in power battery It blows up opening apparatus and disconnects the circuit that there is short circuit, to protect power battery.

It is a kind of electrical block diagram of power battery provided by the present application, the power electric referring in particular to shown in Figure 17 a Pond may include: the first end A for being respectively used to connection power supply unit anode and the second end B for connecting the power supply unit cathode； At least two battery modules 171 between the first end A and the second end B are set；Wherein, at least two battery The first relay 172 is connected in mould group 171 between adjacent cell mould group 171, can realize adjacent cell under proper condition The tandem working of mould group 171；Each battery modules 171 are separately connected the first end A by least one second relay 173 With the second end B, the parallel operation of adjacent cell mould group 171 can be realized under proper condition.In this application, power supply is set Standby both includes the direct-current charging post with positive and negative electrode, also includes that the alternating current of alternating-current charging pile can be converted to direct current Vehicular charger, it is however generally that, either AC charging or DC charging, the electric energy of power supply unit can pass through high voltage power distribution It is charged by direct current to power battery after box.The application is not defined the current work principle of power supply unit.

Each battery modules 171 connect at least one described second relay 173 formed circuit in be serially connected with Electric signal sensor 174；The either end of first relay 172 and/or second relay 173 is connected with explosion and disconnects Device 175.

Wherein, the electric signal sensor 174 can be current signal sensor or voltage signal sensor；Mainly The behaviour protected for carrying out sensing detection, sense samples, sensing based on the current or voltage for flowing through the electric signal sensor 174 Make, the application is not defined the type of electric signal sensor 174.

The explosion disconnects device 175 and disconnects its circuit connected for mandatory, therefore can solve power battery Circuit structure in loop problem caused by element adhesion fault.Wherein, the either end of the first relay 172 can connect this Explosion disconnects device 175, alternatively, the either end of the second relay 173, which can connect the explosion, disconnects device 175, alternatively, first The either end of relay 172 connects explosion disconnection device 175 and the either end of the second relay 173 connects explosion disconnection Device 175.Three cases above is shown by way of actual situation line in Figure 17.

It should be understood that in this application, in power battery in addition to electric signal sensor 174 and explosion disconnect device 175, Its circuit element is referred to structure shown in Fig. 1 a- Figure 16 c and illustrates to be understood.

In the above-mentioned technical solutions, disconnected by increasing electric signal sensor and explosion in the circuit structure of power battery Opening apparatus, it is quick-fried corresponding by putting when causing circuit that short circuit occurs there are adhesion fault with the circuit element in power battery Explosion disconnects device and disconnects the circuit that there is short circuit, avoids power battery that the danger of batteries caught fire occurs because of short circuit, to protect Protect power battery.

Optionally, in technical scheme, referring to Fig.1 shown in 7b, the battery modules 171 are specifically included: battery Module 1711, and, connect the relay mould group 1712 of described 1711 one end of battery module；Wherein, the relay mould group 1712 either end is connected with explosion and disconnects device 175.In this way, it may also be necessary to inside battery modules 171, relay mould The either end connection explosion of group 1712 disconnects device 175, to realize the disconnection to 1711 place circuit of battery module, protects battery 1711 place circuit structure of module.It should be understood that the specific structure of relay mould group 1712 is referred to shown in Fig. 1 b, battery mould The specific structure of block 1711 is referred to shown in Fig. 2, and this will not be repeated here.

Referring to Fig.1 shown in 8a, which includes two battery modules, wherein the first battery modules 181 and the second electricity Intermediate relay 183 is connected between Chi Mo group 182, the first battery modules 181 are separately connected by the first auxiliary relay 184 The first end A and second end B of power battery, the second battery modules 182 are separately connected power electric by the second auxiliary relay 185 The first end A and second end B in pond；The either end of the intermediate relay 183 is connected with explosion and disconnects device 186, the first auxiliary Relay 184 and the second auxiliary relay 185 are separately connected electric signal sensor 187.

Referring to Fig.1 shown in 8b, which includes two battery modules, wherein the first battery modules 181 and the second electricity Intermediate relay 183 is connected between Chi Mo group 182, the first battery modules 181 are separately connected by the first auxiliary relay 184 The first end A and second end B of power battery, the second battery modules 182 are separately connected power electric by the second auxiliary relay 185 The first end A and second end B in pond；The either end of first auxiliary relay 184 is connected with explosion and disconnects device 186, described The either end of second auxiliary relay 185 be connected with explosion disconnect device 186, the first auxiliary relay 184 and the second auxiliary after Electric appliance 185 is separately connected electric signal sensor 187.

Referring to Fig.1 shown in 8c, which includes two battery modules, wherein the first battery modules 181 and the second electricity Intermediate relay 183 is connected between Chi Mo group 182, the first battery modules 181 are separately connected by the first auxiliary relay 184 The first end A and second end B of power battery, the second battery modules 182 are separately connected power electric by the second auxiliary relay 185 The first end A and second end B in pond；The either end of the intermediate relay 183, which is connected with to explode, disconnects device 186, and described first The either end of auxiliary relay 184 is connected with explosion and disconnects device 186, the either end connection of second auxiliary relay 185 There is explosion to disconnect device 186, the first auxiliary relay 184 and the second auxiliary relay 185 are separately connected electric signal sensor 187。

Wherein, the internal structure of the first battery modules 181 and the second battery modules 182 is the same as the battery introduced in above-mentioned Fig. 1 The construction of mould group, including battery module, relay mould group.

Referring to Fig.1 shown in 8d, which includes two battery modules, wherein the first battery modules 181 and the second electricity Intermediate relay 183 is connected between Chi Mo group 182, the first battery modules 181 are separately connected by the first auxiliary relay 184 The first end A and second end B of power battery, the second battery modules 182 are separately connected power electric by the second auxiliary relay 185 The first end A and second end B in pond；First battery modules 181 include the first battery module 1811 and the first relay mould group 1812, second battery modules 182 include the second battery module 1821 and the second relay mould group 1822.The intermediate relay The either end of device 183 is connected with explosion and disconnects device 186, and it is disconnected that the either end of first auxiliary relay 184 is connected with explosion Opening apparatus 186, the either end of second auxiliary relay 185 are connected with explosion and disconnect device 186, the first relay mould The either end of group 1812 is connected with explosion and disconnects device 186, and the either end of the second relay mould group 1822 is connected with explosion Device 186 is disconnected, the first auxiliary relay 184 and the second auxiliary relay 185 are separately connected electric signal sensor 187.

Optionally, in the structure of the power battery shown in Figure 18 a- Figure 18 d, the first battery modules 181 and the second battery The threshold voltage ranges of mould group 182 are 250V-450V.In this way, when the first battery modules 181 and the second battery modules 182 are gone here and there When connection, the threshold voltage ranges of power battery are 500V-900V.When the first battery modules 181 are in parallel with the second battery modules 182 When, the threshold voltage ranges of power battery are 250V-450V.

It should be understood that the structure of power battery involved in above-mentioned Figure 17 a- Figure 18 d can fit in technical scheme For in structure shown in Fig. 1 a- Figure 16 c or method, to solve element in power battery structure involved in Fig. 1 a- Figure 16 c Short circuit problem caused by adhesion, the application will not repeat them here.

Explanation is further expalined to above-mentioned power battery structure below with reference to the control method of power battery.

Referring to Fig.1 shown in 9a, the control method of the power battery be may comprise steps of:

Step 191: detecting the electric signal value of each electric signal sensor.

Step 192: when the electric signal value exception of at least one electric signal sensor, abnormal according to electric signal value At least one described electric signal sensor determines that explosion to be processed disconnects device, and disconnects explosion to be processed and disconnect device.

Optionally, in this application, step 192 is specific executable are as follows: to connect when disconnecting explosion disconnection device to be processed The control instruction that the controller of control circuit where receiving power battery issues, and put the quick-fried explosion and disconnect device to disconnect presence The circuit of short circuit.

In the electric signal value exception for detecting electric signal sensor, with regard to the electric current for illustrating to flow through the electric signal sensor Or there is exception in voltage, and there are short circuit problems in the circuit which is concatenated, and then can be taken according to electric signal The electric signal sensor of value exception determines that explosion to be processed disconnects device.

Optionally, explosion to be processed is determined at least one electric signal sensor according to electric signal value exception When disconnecting device, different operations can be executed according to the demand of user.

A kind of achievable scheme, 9b referring to Fig.1, specifically includes the following steps:

Step 1921b: determine there is short circuit according at least one electric signal sensor described in electric signal value exception Circuit.

Step 1922b: each element carries out adhesion fault investigation and determines each element in the circuit that there is short circuit After there is adhesion fault, according at least one described electric signal sensor and there is explosion disconnection device in short-circuit circuit Layout determine that explosion to be processed disconnects device.

In the optinal plan, the working condition for being not relevant for the circuit in the presence of short circuit at this time is in parallel or series connection, can be with Guarantee disconnects the circuit that there is short circuit in time, and therefore, in the optinal plan, putting quick-fried explosion disconnection device may be led It causes original working condition to terminate, disconnects short-circuit loop in time, realize the effect of protection power battery.

Another achievable scheme, 9c referring to Fig.1, specifically includes the following steps:

Step 1921c: if at least two battery modules in parallel works, according to electric signal value exception extremely Few two electric signal sensors determine at least two circuits that there is short circuit；

Step 1922c: according to the intermediate relay that is connected of each battery modules at least two circuits that there is short circuit, Determine that there are the intermediate relays of adhesion fault；

Step 1923c: will be present adhesion fault intermediate relay connection explosion disconnection device be determined as it is to be processed Explosion disconnects device.

In this way, i.e. time point explosion, which may be implemented, in the optinal plan disconnects device, it is also ensured that circuit originally can be with It is normal to carry out parallel operation, for example, charged in parallel or parallel operation etc..

In fact, when at least two battery modules tandem working, can by described in electric signal value exception at least The explosion that the auxiliary relay of each electric signal sensor connection is connected in one electric signal sensor disconnects device and is determined as Explosion to be processed disconnects device, thereby may be ensured that the loop state before being restored to short circuit, realizes normal tandem working, Such as serial connection charge or series-fed etc..

It is illustrated below with reference to several power battery structures shown in Figure 18 a- Figure 18 d.

Example 1:

A kind of operating mode of Figure 18 a is referring to Figure 20 a, the first battery modules 181 work in parallel with the second battery modules 182 Make, at this point, detecting the electric signal value exception and second of the electric signal sensor 187 of the first auxiliary relay 184 connection The electric signal value for the electric signal sensor 187 that auxiliary relay 185 connects is abnormal, it is determined that with the first battery modules 181 and There are adhesion, (originally in parallel operation, which answers the intermediate relay 183 of second battery modules 182 connection This is to disconnect, but there may be element adhesion problems, can not disconnect or can not be fully disconnected), the control of power battery Device checks other element (the first auxiliary relay 184, the second auxiliary relay 185, the first battery moulds in the parallel circuit first Group 181 in the first relay mould group 1812, the second relay mould group 1822 in the second battery modules 182) whether there is also Adhesion, however, it is determined that there is adhesion, then the explosion that the quick-fried intermediate relay 183 in timely control point connects disconnects device 186, to terminate Short trouble avoids the occurrence of the problem of power battery catches fire.Scheme at this time can not only terminate short trouble, but also can keep Power battery parallel operation.

Referring to Figure 21 a, the first battery modules 181 are connected work with the second battery modules 182 for another operating mode of Figure 18 a Make, at this point, detecting that the electric signal value of the electric signal sensor 187 of the first auxiliary relay 184 connection is abnormal, it is determined that the There are adhesion, (originally in parallel operation, which should disconnect to one auxiliary relay 184, still There may be element adhesion problems, can not disconnect or can not be fully disconnected), the controller of power battery checks the series connection first Other element (the first relay mould groups 1812 in intermediate relay 183, the first battery modules 181, the second battery mould in circuit Group 182 in the second relay mould group 1822) whether there is also adhesions, however, it is determined that there is adhesion, then timely control point it is quick-fried in Between relay 183 connect explosion disconnect device 186, to terminate short trouble, avoid the occurrence of power battery kindling the problem of.This When scheme, can only terminate short trouble, cannot keep power battery tandem working.

In fact, under 182 tandem working state of the first battery modules 181 and the second battery modules, when detecting that second is auxiliary When the electric signal value for the electric signal sensor 187 for helping relay 184 to connect is abnormal and other elements have adhesion, and, The electric signal value and the second auxiliary relay 184 for detecting the electric signal sensor 187 of the first auxiliary relay 184 connection connect When the electric signal value of the electric signal sensor 187 connect is abnormal simultaneously and other elements have adhesion, also make similar processing, It puts the explosion that quick-fried intermediate relay 183 connects and disconnects device 186, will not repeat them here.

Example 2:

A kind of operating mode of Figure 18 b is referring to Figure 20 b, the first battery modules 181 work in parallel with the second battery modules 182 Make, at this point, detecting the electric signal value exception and second of the electric signal sensor 187 of the first auxiliary relay 184 connection The electric signal value for the electric signal sensor 187 that auxiliary relay 185 connects is abnormal, it is determined that with the first battery modules 181 and There are adhesion, (originally in parallel operation, which answers the intermediate relay 183 of second battery modules 182 connection This is to disconnect, but there may be element adhesion problems, can not disconnect or can not be fully disconnected), the control of power battery Device checks other element (the first auxiliary relay 184, the second auxiliary relay 185, the first battery moulds in the parallel circuit first Group 181 in the first relay mould group 1812, the second relay mould group 1822 in the second battery modules 182) whether there is also Adhesion, however, it is determined that there is adhesion, then the explosion that quick-fried first auxiliary relay 184 in timely control point connects disconnect device 186 with And second auxiliary relay 185 connect explosion disconnect device 186, to terminate short trouble, avoid the occurrence of power battery kindling The problem of.Scheme at this time can both terminate short trouble, but cannot keep power battery parallel operation.

Referring to Figure 21 b, the first battery modules 181 are connected work with the second battery modules 182 for another operating mode of Figure 18 b Make, at this point, detecting that the electric signal value of the electric signal sensor 187 of the first auxiliary relay 184 connection is abnormal, it is determined that the There are adhesion, (originally in parallel operation, which should disconnect to one auxiliary relay 184, still There may be element adhesion problems, can not disconnect or can not be fully disconnected), the controller of power battery checks the series connection first Other element (the first relay mould groups 1812 in intermediate relay 183, the first battery modules 181, the second battery mould in circuit The second relay mould group 1822 in group 182) whether there is also adhesions, however, it is determined that there is adhesion, then timely control point quick-fried the The explosion of one auxiliary relay 184 connection disconnects device 186, to terminate short trouble, avoids the occurrence of asking for power battery kindling Topic.Scheme at this time can not only terminate short trouble, but also can keep power battery tandem working.

In fact, under 182 tandem working state of the first battery modules 181 and the second battery modules, when detecting that second is auxiliary When the electric signal value for the electric signal sensor 187 for helping relay 184 to connect is abnormal and other elements have adhesion, and, The electric signal value and the second auxiliary relay 184 for detecting the electric signal sensor 187 of the first auxiliary relay 184 connection connect When the electric signal value of the electric signal sensor 187 connect is abnormal simultaneously and other elements have adhesion, as also making respective class Processing, will not repeat them here.

Example 3:

A kind of operating mode of Figure 18 c is referring to Figure 20 c, the first battery modules 181 work in parallel with the second battery modules 182 Make, at this point, detecting the electric signal value exception and second of the electric signal sensor 187 of the first auxiliary relay 184 connection The electric signal value for the electric signal sensor 187 that auxiliary relay 185 connects is abnormal, it is determined that with the first battery modules 181 and There are adhesion, (originally in parallel operation, which answers the intermediate relay 183 of second battery modules 182 connection This is to disconnect, but there may be element adhesion problems, can not disconnect or can not be fully disconnected), the control of power battery Device checks other element (the first auxiliary relay 184, the second auxiliary relay 185, the first battery moulds in the parallel circuit first Group 181 in the first relay mould group 1812, the second relay mould group 1822 in the second battery modules 182) whether there is also Adhesion, however, it is determined that there is adhesion, then the explosion that the quick-fried intermediate relay 183 in timely control point connects disconnects device 186, to terminate Short trouble avoids the occurrence of the problem of power battery catches fire.Scheme at this time can not only terminate short trouble, but also can keep Power battery parallel operation.Alternatively, the explosion that quick-fried first auxiliary relay 184 in control point connects in time disconnect device 186 and The explosion of second auxiliary relay 185 connection disconnects device 186.

Referring to Figure 21 c, the first battery modules 181 are connected work with the second battery modules 182 for another operating mode of Figure 18 c Make, at this point, detecting that the electric signal value of the electric signal sensor 187 of the first auxiliary relay 184 connection is abnormal, it is determined that the There are adhesion, (originally in parallel operation, which should disconnect to one auxiliary relay 184, still There may be element adhesion problems, can not disconnect or can not be fully disconnected), the controller of power battery checks the series connection first Other element (the first relay mould groups 1812 in intermediate relay 183, the first battery modules 181, the second battery mould in circuit The second relay mould group 1822 in group 182) whether there is also adhesions, however, it is determined that there is adhesion, then timely control point quick-fried the The explosion of one auxiliary relay 184 connection disconnects device 186, to terminate short trouble, avoids the occurrence of asking for power battery kindling Topic.Scheme at this time can not only terminate short trouble, but also can keep power battery tandem working.Alternatively, control point is quick-fried in time The explosion that intermediate relay 183 connects disconnects device 186.

Similarly, under 182 tandem working state of the first battery modules 181 and the second battery modules, when detecting that second is auxiliary When the electric signal value for the electric signal sensor 187 for helping relay 184 to connect is abnormal and other elements have adhesion, and, The electric signal value and the second auxiliary relay 184 for detecting the electric signal sensor 187 of the first auxiliary relay 184 connection connect When the electric signal value of the electric signal sensor 187 connect is abnormal simultaneously and other elements have adhesion, also make similar processing, It will not repeat them here.

Example 4:

A kind of operating mode of Figure 18 d is referring to Figure 20 d, the first battery modules 181 work in parallel with the second battery modules 182 Make, at this point, detecting the electric signal value exception and second of the electric signal sensor 187 of the first auxiliary relay 184 connection The electric signal value for the electric signal sensor 187 that auxiliary relay 185 connects is abnormal, it is determined that with the first battery modules 181 and There are adhesion, (originally in parallel operation, which answers the intermediate relay 183 of second battery modules 182 connection This is to disconnect, but there may be element adhesion problems, can not disconnect or can not be fully disconnected), the control of power battery Device checks other element (the first auxiliary relay 184, the second auxiliary relay 185, the first battery moulds in the parallel circuit first Group 181 in the first relay mould group 1812, the second relay mould group 1822 in the second battery modules 182) whether there is also Adhesion, however, it is determined that there is adhesion, then the explosion that the quick-fried intermediate relay 183 in timely control point connects disconnects device 186, to terminate Short trouble avoids the occurrence of the problem of power battery catches fire.Scheme at this time can not only terminate short trouble, but also can keep Power battery parallel operation.Alternatively, the explosion that quick-fried first auxiliary relay 184 in control point connects in time disconnect device 186 and The explosion of second auxiliary relay 185 connection disconnects device 186.Again alternatively, in time in quick-fried first battery modules 181 in control point The explosion of first relay mould group 1812 connection disconnects device 186, the second relay mould group 1822 in the second battery modules 182 The explosion of connection disconnects device 186.

Referring to Figure 21 d, the first battery modules 181 are connected work with the second battery modules 182 for another operating mode of Figure 18 d Make, at this point, detecting that the electric signal value of the electric signal sensor 187 of the first auxiliary relay 184 connection is abnormal, it is determined that the There are adhesion, (originally in parallel operation, which should disconnect to one auxiliary relay 184, still There may be element adhesion problems, can not disconnect or can not be fully disconnected), the controller of power battery checks the series connection first Other element (the first relay mould groups 1812 in intermediate relay 183, the first battery modules 181, the second battery mould in circuit The second relay mould group 1822 in group 182) whether there is also adhesions, however, it is determined that there is adhesion, then timely control point quick-fried the The explosion of one auxiliary relay 184 connection disconnects device 186, to terminate short trouble, avoids the occurrence of asking for power battery kindling Topic.Scheme at this time can not only terminate short trouble, but also can keep power battery tandem working.Alternatively, control point is quick-fried in time The explosion that intermediate relay 183 connects disconnects device 186.Again alternatively, first in control point quick-fried first battery modules 181 in time The explosion that relay mould group 1812 connects disconnects device 186.Again alternatively, the in control point quick-fried second battery modules 182 in time The explosion of two relay mould groups 1822 connection disconnects device 186.

Similarly, under 182 tandem working state of the first battery modules 181 and the second battery modules, when detecting that second is auxiliary When the electric signal value for the electric signal sensor 187 for helping relay 184 to connect is abnormal and other elements have adhesion, and, The electric signal value and the second auxiliary relay 184 for detecting the electric signal sensor 187 of the first auxiliary relay 184 connection connect When the electric signal value of the electric signal sensor 187 connect is abnormal simultaneously and other elements have adhesion, as also making respective class Processing, will not repeat them here.

It should be understood that in technical scheme, although there are a variety of schemes for terminating short trouble, in actual operation In the process, it for save the cost, and is promoted and solves efficiency, device work is preferably disconnected with the explosion for putting quick-fried intermediate relay connection For preferred embodiment.

Moreover, the application is not limited to this in above scheme mainly by taking power battery includes two battery modules as an example, also It can be the scheme comprising multiple battery modules.

The embodiment of the present application also provides a kind of control circuits of power battery, including involved in any of the above-described embodiment Explosion disconnects the controller that device disconnects in power battery, and the control power battery.

The embodiment of the present application also provides a kind of electric cars, including power battery control involved in any of the above-described embodiment Circuit processed.

The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal Replacement, improvement etc., should be included within the scope of the claims of this application.

Claims

1. a kind of power battery characterized by comprising described in the first end and connection for being respectively used to connection power supply unit anode The second end of power supply unit cathode；At least two battery modules between the first end and the second end are set；

Wherein, the first relay, each battery modules are connected between adjacent cell mould group at least two battery modules The first end and the second end are separately connected by least one second relay；

Each battery modules are connected at least one described second relay is serially connected with electric signal sensing in the circuit to be formed Device；

2. power battery as described in claim 1, which is characterized in that the battery modules specifically include:

3. power battery as described in claim 1, which is characterized in that when the power battery includes two battery modules, Wherein,

The first relay connected between first battery modules and the second battery modules is intermediate relay, the intermediate relay Either end be connected with explosion disconnect device；And/or

The second relay connecting with first battery modules is the first auxiliary relay, and first auxiliary relay is appointed One end is connected with explosion and disconnects device, and the second relay connecting with second battery modules is the second auxiliary relay, institute The either end for stating the second auxiliary relay is connected with explosion and disconnects device.

4. power battery as claimed in claim 2, which is characterized in that when the power battery includes two battery modules, Wherein,

The first relay connected between first battery modules and the second battery modules is intermediate relay, the intermediate relay Either end be connected with explosion disconnect device；

The second relay connecting with first battery modules is the first auxiliary relay, and first auxiliary relay is appointed One end is connected with explosion and disconnects device, and the second relay connecting with second battery modules is the second auxiliary relay, institute The either end for stating the second auxiliary relay is connected with explosion and disconnects device；

The relay mould group that first battery modules include is the first relay mould group, any of the first relay mould group End is connected with explosion and disconnects device, and the relay mould group that second battery modules include is the second relay mould group, and described the The either end of two relay mould groups is connected with explosion and disconnects device.

5. a kind of control circuit of power battery, which is characterized in that including the described in any item power batteries of claim 1-4, And explosion disconnects the controller that device disconnects in the control power battery.

6. a kind of electric car, which is characterized in that the control circuit including the power battery described in claim 5.

7. the method that a kind of pair of described in any item power batteries of claim 1-4 are controlled, which is characterized in that the method Include:

Detect the electric signal value of each electric signal sensor；

8. the method for claim 7, which is characterized in that according at least one electric signal described in electric signal value exception Sensor determines that explosion to be processed disconnects device, specifically includes:

Each element carries out adhesion fault investigation and determines that each element has adhesion fault in the circuit that there is short circuit Afterwards, it is determined according at least one described electric signal sensor and the layout that there is explosion disconnection device in short-circuit circuit wait locate The explosion of reason disconnects device.

9. the method for claim 7, which is characterized in that according at least one electric signal described in electric signal value exception Sensor determines that explosion to be processed disconnects device, specifically includes:

If at least two battery modules in parallel work, passes according at least two electric signal of electric signal value exception Sensor determines at least two circuits that there is short circuit；

According to the intermediate relay that each battery modules are connected at least two circuits that there is short circuit, determine that there are adhesion events The intermediate relay of barrier；

The explosion that the intermediate relay connection of adhesion fault will be present disconnects device and is determined as explosion disconnection device to be processed；

If at least two battery modules tandem working, at least one electric signal described in electric signal value exception is sensed It is disconnected that the explosion disconnection device that the auxiliary relay of each electric signal sensor connection is connected in device is determined as explosion to be processed Opening apparatus.

10. such as the described in any item methods of claim 7-9, which is characterized in that disconnect explosion to be processed and disconnect device, packet It includes:

The control instruction that the controller of control circuit where receiving power battery issues, and put the quick-fried explosion and disconnect device with disconnected Open the circuit in the presence of short circuit.