Battery and controlled device

Abstract

According to the battery and the control device provided by the embodiment of the invention, under the condition that any battery module in the battery is abnormal or is about to be abnormal, the electric equipment can be normally used. The battery comprises a plurality of battery modules; the on-off assembly comprises a first on-off assembly, the first on-off assembly is connected with a first battery module in the plurality of battery modules, and when the battery state parameter of the first battery module reaches a threshold value, the first on-off assembly is connected with the second battery module; and the first on-off assembly is configured to disconnect the connection with the first battery module and close the connection with other battery modules in the plurality of battery modules.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery and a control device. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. In this case, electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] Normally, when a battery pack fails, such as when thermal runaway occurs, the relays of the entire pack will be disconnected, which may cause the entire pack to lose power and make the electric vehicle unable to continue driving, as well as power shortage for the thermal management system of the battery pack. Utility Model Content

[0004] The embodiments of the present application provide a battery and a control device, which enable electrical equipment to be used normally when any battery module in the battery is abnormal or about to be abnormal.

[0005] In a first aspect, a battery is provided, comprising: a plurality of battery modules; an on-off assembly, comprising a first on-off assembly, wherein the first on-off assembly is connected to a first battery module among the plurality of battery modules, and when a battery status parameter of the first battery module reaches a threshold value, the first on-off assembly is configured to disconnect the connection with the first battery module and close the connection with other battery modules among the plurality of battery modules.

[0006] In the embodiment of the present application, when any battery module is abnormal or about to be abnormal, the battery module that is abnormal or about to be abnormal is separated by the on-off component connected to the battery module, and other battery modules are powered normally, so that the electrical equipment including the battery can be used normally. For example, the electrical equipment can drive normally and the thermal management system can supply power normally.

[0007] In some possible embodiments, the first on-off component includes a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent on-off component.

[0008] In the above technical solution, the first switch component is configured to include three interfaces, so that the first switch component can be connected to its adjacent switch components. In this way, when any battery module is abnormal or about to be abnormal, the battery module that is abnormal or about to be abnormal is separated while other battery modules can supply power normally, so that the electrical equipment including the battery can be used normally.

[0009] In some possible embodiments, the first on-off component is further configured to receive control information, and based on the received control information, disconnect the connection with the first battery module and close the connection with other battery modules among the multiple battery modules, wherein the control information is used to indicate that the battery status parameter of the first battery module reaches the threshold.

[0010] In the above technical solution, the first on-off component receives control information indicating that the battery status parameter of the first battery module has reached a threshold value. In this way, when the battery status parameter of the first battery module reaches the threshold value, the first on-off component can promptly disconnect from the first battery module and close the connection with other battery modules, thereby effectively reducing the probability of adverse effects caused by untimely processing, such as reducing the possibility of heat diffusion caused by thermal runaway of the battery module.

[0011] In some possible embodiments, the first on-off component is a first relay. When the battery status parameter of the first battery module reaches the threshold, the first relay is configured to close the switch leading to the first battery module and open the switch leading to the other battery modules.

[0012] Since relays are low in cost, mature in technology and easy to operate, the above technical solution, in which the first on-off component is set as a relay, can not only reduce the production cost of the battery, but also improve the success rate of separating the abnormal or about to be abnormal battery module and ensuring normal power supply to other battery modules when any battery module is abnormal or about to be abnormal.

[0013] In some possible embodiments, there are multiple on / off components.

[0014] The above technical solution sets the number of on-off components to multiple, so that when any battery module is abnormal or about to be abnormal, it can be guaranteed that other battery modules will supply power to the power-consuming device normally, so that the power-consuming device can be used normally.

[0015] In some possible embodiments, the on-off component further includes a second on-off component, and the second on-off component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0016] In the above technical solution, one on-off component is connected to multiple battery modules, which reduces the number of on-off components. In this way, when any battery module is abnormal or about to be abnormal, it can be achieved at a lower cost to ensure that other battery modules can supply power to the power consumption device normally.

[0017] In some possible embodiments, the number of the switch components is the same as the number of the plurality of battery modules, and each of the switch components is respectively connected to each of the plurality of battery modules.

[0018] The above technical solution sets the number of on-off components to be the same as the number of multiple battery modules, that is, the on-off components can correspond to the battery modules one by one, so that when any battery module is abnormal or is about to be abnormal, only the battery module that is abnormal or is about to be abnormal is separated, and the battery module in normal state continues to supply power normally, thereby improving the power supply efficiency.

[0019] In some possible embodiments, the battery includes a high-voltage circuit area, and the switch assembly is disposed in the high-voltage circuit area.

[0020] The above technical solution sets the on-off assembly in the high-voltage circuit area of ​​the battery, which is not only simple to operate and easy to implement, but also can reduce the adverse effects of the abnormal or about to be abnormal battery module on the on-off assembly when any battery module is abnormal or about to be abnormal. For example, it can reduce the effects of high-temperature and high-pressure gas generated by a battery module with thermal runaway on the on-off assembly.

[0021] In a second aspect, a control method is provided, which is applied to a first on-off component in an on-off component, and the method comprises: receiving control information, wherein the control information is used to indicate that a battery status parameter of a first battery module among multiple battery modules connected to the first on-off component reaches a threshold value; based on the control information, disconnecting the connection with the first battery module and closing the connection with other battery modules among the multiple battery modules.

[0022] In some possible embodiments, the first on-off component includes a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent on-off component.

[0023] In some possible embodiments, the first on-off component includes a first relay, which disconnects the connection with the first battery module and closes the connection with other battery modules among the multiple battery modules based on the control information, including: closing the switch leading to the first battery module and opening the switch leading to the other battery modules based on the control information.

[0024] In some possible embodiments, there are multiple on / off components.

[0025] In some possible embodiments, the on-off component further includes a second on-off component, and the second on-off component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0026] In some possible embodiments, the number of the switch components is the same as the number of the plurality of battery modules, and each of the switch components is respectively connected to each of the plurality of battery modules.

[0027] According to a third aspect, a control device is provided, which is a first on-off component in the on-off components, comprising: a communication unit for receiving control information, wherein the control information is used to indicate that a battery status parameter of a first battery module connected to the first on-off component among multiple battery modules has reached a threshold value; and a processing unit for disconnecting the connection with the first battery module and closing the connection with other battery modules among the multiple battery modules based on the control information.

[0028] In some possible embodiments, the first on-off component includes a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent on-off component.

[0029] In some possible embodiments, the first on-off component is a first relay, and the processing unit is specifically configured to: based on the control information, close the switch leading to the first battery module and open the switches leading to the other battery modules.

[0030] In some possible embodiments, there are multiple on / off components.

[0031] In some possible embodiments, the on-off component further includes a second on-off component, and the second on-off component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0032] In some possible embodiments, the number of the switch components is the same as the number of the plurality of battery modules, and each of the switch components is respectively connected to each of the plurality of battery modules.

[0033] In a fourth aspect, a control device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call the computer program to execute the method in the above-mentioned second aspect or its various implementation modes.

[0034] In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in the above-mentioned second aspect or its various implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0036] In the drawings, the drawings are not drawn to scale.

[0037] Figure 1 It is a schematic diagram of a battery according to an embodiment of the present application.

[0038] Figure 2 yes Figure 1 A plan view of the battery shown.

[0039] Figure 3 It is a schematic diagram of the structure of a battery module according to an embodiment of the present application.

[0040] Figure 4 It is an exploded view of a battery cell according to an embodiment of the present application.

[0041] Figure 5 It is a schematic flow chart of the control method of an embodiment of the present application.

[0042] Figure 6 It is a schematic block diagram of a control device according to an embodiment of the present application.

[0043] Figure 7 It is a schematic block diagram of a control device according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0045] In the description of the present application, it should be noted that, unless otherwise specified, “plurality” means more than two; the terms “upper”, “lower”, “left”, “right”, “inside”, “outside”, etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0047] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0048] In the field of new energy, batteries can be used as the main power source for electrical devices (such as vehicles, ships or spacecraft). The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module or a battery pack.

[0049] During the use of the battery, the battery may experience abnormal conditions, such as deformation of the battery, or thermal runaway of the battery due to increased battery temperature or other reasons. Usually, after an abnormal condition occurs in the battery, the entire pack relay will be disconnected, which may cause the entire pack to be powered off and the electric vehicle to continue driving, and the battery pack's thermal management system to be short of power.

[0050] In view of this, an embodiment of the present application proposes a battery, including multiple battery modules and a switch assembly, wherein the switch assembly includes a first switch assembly, and the first switch assembly is connected to a first battery module among the multiple battery modules. When the battery state parameter of the first battery module reaches a threshold value, the first switch assembly is configured to disconnect the connection with the first battery module and close the connection with other battery modules among the multiple battery modules. In this way, when any battery module is abnormal or about to be abnormal, the battery module that is abnormal or about to be abnormal is separated by the switch assembly connected to the battery module, and other battery modules are powered normally, so that the electrical equipment including the battery can be used normally.

[0051] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using batteries.

[0052] Electrical equipment may be, for example, vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and electric tools, etc. Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles, and new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0053] Figure 1 and Figure 2 1 shows a schematic diagram of a battery 10 according to an embodiment of the present application. Figure 1 and Figure 2 As shown, the battery 10 includes a plurality of battery modules 110 and a switch assembly 120. The switch assembly 120 includes a first switch assembly 121, and the first switch assembly 121 is connected to a first battery module 111 among the plurality of battery modules 110. When the battery state parameter of the first battery module 111 reaches a threshold value, the first switch assembly 121 is configured to disconnect the connection with the first battery module 111 and close the connection with other battery modules among the plurality of battery modules 110.

[0054] The battery state parameters may include temperature and / or voltage. In addition, the battery state parameters may also include pressure, stress or characteristic gas, etc.

[0055] It should be understood that when the battery status parameter reaches the threshold, it indicates that an abnormality has occurred or is about to occur in the battery module 110. The abnormality of the battery module 110 may include but is not limited to thermal runaway of the battery module 110, deformation of some battery cells in the battery module 110, such as bulging, or exhaustion of the battery module 110.

[0056] It should be noted that, for the convenience of description, the battery status parameter reaching the threshold value will be uniformly indicated as an abnormality in the battery module 110 , but it should be understood that the embodiments of the present application are not limited to this.

[0057] like Figure 3 As shown, the battery module 110 may include a plurality of battery cells 20. Optionally, the plurality of battery cells 20 may be connected in series, in parallel, or in mixed series to form the battery module 110. The number of battery cells 20 included in the battery module 110 is not limited and may be set as required.

[0058] Combine the following Figure 4The battery cell 20 is described. Figure 4 , which is a schematic diagram of the structure of a battery cell 20, and the battery cell 20 includes one or more electrode assemblies 22, a shell 211 and a cover plate 212. The shell 211 and the cover plate 212 form a shell or battery box 21. The wall of the shell 211 and the cover plate 212 are both called the wall of the battery cell 20. The shell 211 is determined according to the shape of one or more electrode assemblies 22 after being combined. For example, the shell 211 can be a hollow cuboid or a cube or a cylinder, and one of the faces of the shell 211 has an opening so that one or more electrode assemblies 22 can be placed in the shell 211. For example, when the shell 211 is a hollow cuboid or a cube, one of the planes of the shell 211 is an open surface, that is, the plane does not have a wall body so that the inside and outside of the shell 211 are connected. When the shell 211 can be a hollow cylinder, the end face of the shell 211 is an open face, that is, the end face does not have a wall body so that the inside and outside of the shell 211 are connected. The cover plate 212 covers the opening and is connected to the housing 211 to form a closed cavity for placing the electrode assembly 22. The housing 211 is filled with electrolyte, such as electrolyte solution.

[0059] The battery cell 20 may also include two electrode terminals 214, which may be disposed on the cover plate 212. The cover plate 212 is generally in the shape of a flat plate, and the two electrode terminals 214 are fixed on the flat surface of the cover plate 212, and the two electrode terminals 214 are respectively a positive electrode terminal 214a and a negative electrode terminal 214b. Each electrode terminal 214 is provided with a corresponding connection member 23, or may also be referred to as a current collecting member 23, which is located between the cover plate 212 and the electrode assembly 22, and is used to electrically connect the electrode assembly 22 and the electrode terminal 214.

[0060] like Figure 4 As shown, each electrode assembly 22 has a first pole tab 221a and a second pole tab 222a. The polarities of the first pole tab 221a and the second pole tab 222a are opposite. For example, when the first pole tab 221a is a positive pole tab, the second pole tab 222a is a negative pole tab. The first pole tab 221a of one or more electrode assemblies 22 is connected to one electrode terminal through a connecting member 23, and the second pole tab 222a of one or more electrode assemblies 22 is connected to another electrode terminal through another connecting member 23. For example, the positive electrode terminal 214a is connected to the positive pole tab through a connecting member 23, and the negative electrode terminal 214b is connected to the negative pole tab through another connecting member 23.

[0061] In the battery cell 20, the electrode assembly 22 can be provided as a single electrode assembly or multiple electrode assemblies according to actual use requirements. Figure 4 As shown, four independent electrode assemblies 22 are disposed in the battery cell 20 .

[0062] A pressure relief mechanism 213 may also be provided on the battery cell 20. The pressure relief mechanism 213 is used to actuate to release the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold value. The pressure relief mechanism 213 may be various possible pressure relief structures, which are not limited in the embodiments of the present application. For example, the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism, which is configured to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value; and / or, the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism, which is configured to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.

[0063] In the embodiment of the present application, when any battery module 110 is abnormal or about to be abnormal, the battery module 110 that is abnormal or about to be abnormal is separated by the on-off assembly 120 connected to the battery module 110, and other battery modules 110 are powered normally, so that the electrical equipment including the battery 10 can be used normally. For example, the electrical equipment can travel normally and the thermal management system can supply power normally.

[0064] Optionally, the battery 10 may include a high-voltage circuit area, and the switch assembly 120 may be disposed in the high-voltage circuit area of ​​the battery 10, for example. Placing the switch assembly 120 in the high-voltage circuit area of ​​the battery 10 is not only simple to operate and easy to implement, but also can reduce the adverse effects of the battery module 110 in an abnormal state or about to be in an abnormal state on the switch assembly 120 when any battery module 110 is abnormal or about to be abnormal. For example, the effect of high-temperature and high-pressure gas generated by the battery module 110 in thermal runaway on the switch assembly 120 can be reduced.

[0065] Alternatively, the switch assembly 120 may also be disposed in other areas of the battery 10 .

[0066] Optionally, the first switching component 121 may include multiple interfaces, for example, 4 interfaces.

[0067] Or, refer again Figure 1 and Figure 2 The first on-off component 121 may include a first interface, a second interface and a third interface. The first on-off component 121 is connected to the positive electrode and the negative electrode of the first battery module 111 through the first interface and the second interface respectively, and the third interface is connected to the adjacent on-off component.

[0068] In this technical solution, the first switch component 121 is configured to include three interfaces, so that the first switch component 121 can be connected to its adjacent switch components. In this way, when any battery module 110 is abnormal or about to be abnormal, the battery module 110 that is abnormal or about to be abnormal is separated while other battery modules 110 can supply power normally, so that the electrical equipment including the battery 10 can be used normally.

[0069] In some embodiments, there may be multiple switch components 120. In this way, when any battery module is abnormal or about to be abnormal, it can be ensured that other battery modules can supply power to the power-consuming device normally, so that the power-consuming device can be used normally.

[0070] As an example, the switch assembly may further include a second switch assembly, which is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is plural. For example, the number of battery modules 110 is 3, and the number of switch assemblies 120 is 2. At this time, one of the two switch assemblies 120 can be connected to two battery modules among the three battery modules 110. In this way, when any battery module 110 is abnormal or about to be abnormal, it can be ensured that other battery modules can supply power to the power-consuming device normally, so that the power-consuming device can be used normally.

[0071] In this technical solution, one on-off component is connected to multiple battery modules, which reduces the number of on-off components. In this way, when any battery module is abnormal or about to be abnormal, it can be achieved at a lower cost to ensure that other battery modules can supply power to the power consumption device normally.

[0072] As another example, the number of the switch components 120 may be the same as the number of the plurality of battery modules 110. That is, each of the switch components is connected to each of the plurality of battery modules.

[0073] For example, Figure 1 and Figure 2 As shown, the number of the switch components 120 is 2, and the number of the battery modules 110 is also plural. At this time, each switch component 120 can be connected to each battery module 110 respectively.

[0074] The above technical solution sets the number of on-off components 120 to be the same as the number of multiple battery modules 110, that is, the on-off components 120 can correspond to the battery modules 110 one by one, so that when any battery module 110 is abnormal or is about to be abnormal, only the battery module 110 that is abnormal or is about to be abnormal is separated, and the battery module 110 in a normal state continues to supply power normally, thereby improving the power supply efficiency.

[0075] In some embodiments, the first on-off component 121 may also be configured to receive control information, and based on the received control information, disconnect the first battery module 111 and close the connection with other battery modules in the plurality of battery modules 110. The control information is used to indicate that the battery status parameter of the first battery module 111 reaches a threshold value.

[0076] The battery 10 may include a battery management system (BMS), which may monitor the battery status parameters of the battery module 110. If the BMS determines that the first battery module 111 is in an abnormal state based on the monitored battery status parameters, it may send control information to the first switching component 121.

[0077] For example, the control information may include one bit, where the bit “1” is used to indicate that an abnormality occurs in the first battery module 111 , and the bit “0” is used to indicate that the first battery module 111 is in a normal state.

[0078] Optionally, the first on-off component 121 can communicate and interact with the BMS in a wired or wireless manner. The wired communication manner may include, for example, a control area network (CAN) communication manner and a daisy chain communication manner. The wireless communication manner may include, for example, Bluetooth communication, wireless fidelity (WIFI) communication, ZigBee communication, and other various manners, which are not limited here.

[0079] Alternatively, the control information may include a battery status parameter of the first battery module 111. In other words, the battery status parameter of the first battery module 111 may directly brake the first switching component 121.

[0080] In the above technical solution, the first on-off component 121 receives control information indicating that the battery status parameter of the first battery module 111 reaches a threshold value. In this way, when the battery status parameter of the first battery module 111 reaches the threshold value, the first on-off component 121 can promptly disconnect from the first battery module 111 and close the connection with other battery modules, thereby effectively reducing the probability of adverse effects caused by untimely processing, such as reducing the possibility of heat diffusion caused by thermal runaway of the battery module 110.

[0081] In some embodiments, the on-off component 120 may include a relay, that is, the first on-off component 121 may include a first relay. At this time, when the battery state parameter of the first battery module 111 reaches a threshold, the first relay may be configured to close the switch leading to the first battery module 111 and open the switches leading to other battery modules.

[0082] Reference again Figure 2 The battery module 110 includes a first battery module 111 and a second battery module 112, and the switch assembly 120 includes a first relay and a second relay. When the battery 10 is in a normal state, such as the battery 10 does not have thermal runaway, the power-on circuit of the battery 10 may be the first relay→line 1→first battery module 111→line 2→line 3→line 4→second battery module 112→line 5→second relay in sequence.

[0083] When a battery cell in the first battery module 111 experiences thermal runaway, the whole pack power-on circuit can be the first relay → line 3 → line 4 → second battery module 112 → line 5 → second relay. In this way, the first battery module 111 is separated so that the whole pack does not lose power, allowing the electric equipment to continue driving.

[0084] When a battery cell in the second battery module 112 experiences thermal runaway, the whole pack power-on circuit can be the first relay → line 1 → first battery module 111 → line 2 → line 3 → second relay. In this way, the second battery module 112 is separated so that the whole pack does not lose power, allowing the electric equipment to continue driving.

[0085] Since relays are low in cost, mature in technology and easy to operate, the above technical solution, in which the on-off component 120 is set as a relay, can not only reduce the production cost of the battery, but also improve the success rate of separating the abnormal or about to be abnormal battery module 110 and supplying power to other battery modules 110 normally when any battery module 110 is abnormal or about to be abnormal.

[0086] It should be understood that, under the premise of no conflict, the various embodiments and / or the technical features in the various embodiments described in the present application can be arbitrarily combined with each other, and the technical solution obtained after the combination should also fall within the protection scope of the present application.

[0087] The battery of the embodiment of the present application is described in detail above, and the control method of the embodiment of the present application will be described below. It should be understood that the first switching component 121 of the embodiment of the present application can execute the control method of the embodiment of the present application.

[0088] Figure 5 FIG. 5 is a schematic flow chart of a control method 500 according to an embodiment of the present application. Figure 5 As shown, method 500 may include at least part of the following contents.

[0089] S510: Receive control information, where the control information is used to indicate that a battery status parameter of a first battery module connected to a first switching component among a plurality of battery modules reaches a threshold value.

[0090] S520: Based on the control information, disconnect the first battery module and close the connection with other battery modules in the plurality of battery modules.

[0091] Optionally, in some embodiments, the first on-off component includes a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent on-off component.

[0092] Optionally, in some embodiments, the first on-off component includes a first relay, and S520 may specifically include: based on the control information, closing a switch leading to the first battery module, and opening switches leading to other battery modules.

[0093] Optionally, in some embodiments, there are multiple on / off components.

[0094] Optionally, in some embodiments, the on-off component further includes a second on-off component, and the second on-off component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0095] Optionally, in some embodiments, the number of the on-off components is the same as the number of the plurality of battery modules, and each of the on-off components is respectively connected to each of the plurality of battery modules.

[0096] Optionally, in some embodiments, the switch assembly is disposed in a high-voltage circuit area of ​​the battery.

[0097] It should be understood that Figure 5 The method 500 shown can be executed by the first on-off component in the aforementioned embodiment, and for the sake of brevity, it will not be described again here.

[0098] The variations of various operations of 511 should also be taken into account.

[0099] Figure 6 FIG. 6 is a schematic block diagram of a control device 600 according to an embodiment of the present application. Figure 6 As shown, the control device 600 may include:

[0100] The communication unit 610 is used to receive control information, where the control information is used to indicate that a battery status parameter of a first battery module connected to the first on-off component among multiple battery modules has reached a threshold.

[0101] The processing unit 620 is configured to disconnect the first battery module and close the connection with other battery modules in the plurality of battery modules based on the control information.

[0102] Optionally, in an embodiment of the present application, the first on-off component includes a first interface, a second interface and a third interface, the first interface and the second interface are respectively connected to the positive and negative electrodes of the first battery module, and the third interface is connected to an adjacent on-off component.

[0103] Optionally, in an embodiment of the present application, the first on-off component includes a first relay, and the processing unit 620 is specifically used to: based on the control information, close the switch leading to the first battery module and open the switch leading to the other battery modules.

[0104] Optionally, in an embodiment of the present application, there are multiple on / off components.

[0105] Optionally, in an embodiment of the present application, the on-off component further includes a second on-off component, and the second on-off component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0106] Optionally, in an embodiment of the present application, the number of the on-off components is the same as the number of the multiple battery modules, and each of the on-off components is respectively connected to each of the multiple battery modules.

[0107] Optionally, in some embodiments, the switch assembly is disposed in a high-voltage circuit area of ​​the battery.

[0108] It should be understood that the control device 600 can implement the corresponding operations in the method 500, and for the sake of brevity, they are not described here in detail.

[0109] Figure 7 700 is a hardware structure diagram of a control device 700 of an embodiment of the present application. The control device 700 includes a memory 701, a processor 702, a communication interface 703 and a bus 704. The memory 701, the processor 702 and the communication interface 703 are connected to each other through the bus 704.

[0110] The memory 701 may be a read-only memory (ROM), a static storage device, and a random access memory (RAM). The memory 701 may store a program. When the program stored in the memory 701 is executed by the processor 702, the processor 702 and the communication interface 703 are used to execute the various steps of the control method of the embodiment of the present application.

[0111] The processor 702 can adopt a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), a graphics processing unit (GPU) or one or more integrated circuits to execute relevant programs to implement the functions that need to be performed by the units in the device of the embodiment of the present application, or to execute the control method of the embodiment of the present application.

[0112] The processor 702 may also be an integrated circuit chip with signal processing capability. In the implementation process, each step of the control method of the embodiment of the present application may be completed by an integrated logic circuit of hardware in the processor 702 or by instructions in the form of software.

[0113] The processor 702 may also be a general-purpose processor, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 701, and the processor 702 reads the information in the memory 701, and completes the functions required to be performed by the units included in the control device 700 of the embodiment of the present application in combination with its hardware, or executes the control method of the embodiment of the present application.

[0114] The communication interface 703 uses a transceiver such as but not limited to a transceiver to implement communication between the control device 700 and other devices or communication networks, such as receiving control information indicating that a battery status parameter of a first battery module connected to the first switch assembly among multiple battery modules has reached a threshold.

[0115] The bus 704 may include a path for transmitting information between various components of the device 700 for control (eg, the memory 701 , the processor 702 , and the communication interface 703 ).

[0116] It should be noted that although the above-mentioned device 700 for determining control only shows a memory, a processor, and a communication interface, in the specific implementation process, those skilled in the art should understand that the device 700 for controlling can also include other devices necessary for normal operation. At the same time, according to specific needs, those skilled in the art should understand that the device 700 for controlling can also include hardware devices for implementing other additional functions. In addition, those skilled in the art should understand that the device 700 for determining control can also include only the devices necessary for implementing the embodiments of the present application, and does not necessarily include Figure 7 All devices shown in .

[0117] The embodiments of the present application also provide a computer-readable storage medium for storing a computer program, wherein the computer program is used to execute the methods of the various embodiments of the present application described above.

[0118] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0119] An embodiment of the present application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned control method.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that: include: Multiple battery modules; The on-off component includes a first on-off component, which is connected to a first battery module among the multiple battery modules. When a battery status parameter of the first battery module reaches a threshold value, the first on-off component is configured to disconnect the connection with the first battery module and close the connection with other battery modules among the multiple battery modules.

2. The battery according to claim 1, characterized in that The first switch component includes a first interface, a second interface and a third interface. The first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent switch component.

3. The battery according to claim 1 or 2, characterized in that: The first on-off component is also configured to receive control information, and based on the received control information, disconnect the connection with the first battery module and close the connection with other battery modules among the multiple battery modules, wherein the control information is used to indicate that the battery status parameter of the first battery module reaches the threshold.

4. The battery according to claim 1 or 2, characterized in that: The first on-off component is a first relay. When the battery status parameter of the first battery module reaches the threshold, the first relay is configured to close the switch leading to the first battery module and open the switch leading to the other battery modules.

5. The battery according to claim 1 or 2, characterized in that: The number of the switch components is multiple.

6. The battery according to claim 5, characterized in that The switch assembly further includes a second switch assembly, and the second switch assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is plural.

7. The battery according to claim 5, characterized in that The number of the switch components is the same as the number of the plurality of battery modules, and each of the switch components is respectively connected to each of the plurality of battery modules.

8. The battery according to claim 1 or 2, characterized in that: The battery comprises a high-voltage circuit area, and the switch assembly is arranged in the high-voltage circuit area.

9. A control device, the device being a first switch component in a switch component, characterized in that: include: a communication unit, configured to receive control information, wherein the control information is configured to indicate that a battery status parameter of a first battery module connected to the first on-off component among a plurality of battery modules reaches a threshold value; A processing unit is used to disconnect the first battery module and close the connection with other battery modules in the plurality of battery modules based on the control information.

10. The device according to claim 9, characterized in that The first switch component includes a first interface, a second interface and a third interface. The first interface and the second interface are respectively connected to the positive electrode and the negative electrode of the first battery module, and the third interface is connected to an adjacent switch component.

11. The device according to claim 9 or 10, characterized in that The first on-off component is a first relay, and the processing unit is specifically used for: Based on the control information, the switch leading to the first battery module is closed, and the switches leading to the other battery modules are opened.

12. The device according to claim 9 or 10, characterized in that The number of the switch components is multiple.

13. The device according to claim 12, characterized in that The switch assembly further includes a second switch assembly, and the second switch assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is plural.

14. The device according to claim 12, characterized in that The number of the switch components is the same as the number of the plurality of battery modules, and each of the switch components is respectively connected to each of the plurality of battery modules.

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