Battery and control apparatus

Abstract

Provided in the embodiments of the present application are a battery and a control apparatus that allow an electrical device to be used normally when any battery module in the battery has an anomaly or is about to have an anomaly. The battery comprises a plurality of battery modules; and an on-off assembly which comprises a first on-off assembly, the first on-off assembly being connected to a first battery module among the plurality of battery modules. When a battery state parameter of the first battery module reaches a threshold value, the first on-off assembly is configured to cut off the connection to the first battery module and make a connection to the other battery modules among the plurality of battery modules.

Description

Battery and control device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202420003444.X, filed on January 2, 2024, entitled “Battery and Control Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery and a control device. Background Art

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. In this context, electric vehicles, due to their energy-saving and environmentally friendly advantages, have become a crucial component of the industry's sustainable development. Battery technology, in turn, is a crucial factor in the development of electric vehicles.

[0005] Typically, when a battery pack fails, such as in thermal runaway, the entire pack's relays will disconnect, potentially causing the entire pack to lose power, preventing the electric vehicle from continuing to drive, and causing a power shortage in the battery pack's thermal management system.

[0006] Summary of the Invention

[0007] 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.

[0008] 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 from the first battery module and close the connection with other battery modules among the plurality of battery modules.

[0009] In the embodiment of the present application, if any battery module experiences an abnormality or is about to experience an abnormality, the abnormal or about to experience an abnormality battery module is disconnected through the on-off assembly connected to the battery module, while the other battery modules continue to supply power normally, allowing the electrical equipment containing the battery to function normally. For example, the electrical equipment can operate normally and the thermal management system can provide power normally.

[0010] 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.

[0011] In the above technical solution, the first switch assembly is configured to include three interfaces, thereby enabling connection between the first switch assembly and its adjacent switch assembly. In this way, if any battery module experiences an abnormality or is about to experience an abnormality, the abnormal battery module can be disconnected while the other battery modules can continue to supply power, allowing the electrical equipment containing the battery to function normally.

[0012] 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.

[0013] 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, 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.

[0014] 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.

[0015] Since relays are low in cost, mature in technology and easy to operate, the above technical solution sets the first on-off component as a relay, which not only reduces the production cost of the battery, but also improves the success rate of separating the abnormal or about to abnormal battery module and ensuring normal power supply to other battery modules when any battery module is abnormal or about to be abnormal.

[0016] In some possible embodiments, there are multiple on / off components.

[0017] The above technical solution sets the number of on-off components to multiple, so that when any battery module has an abnormality or is about to have an abnormality, it can ensure that other battery modules can normally supply power to the power-consuming device, so that the power-consuming device can be used normally.

[0018] In some possible embodiments, the on-off assembly further includes a second on-off assembly, and the second on-off assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0019] 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 has an abnormality or is about to have an abnormality, it can be achieved at a lower cost to ensure that other battery modules can provide normal power supply to the power consumption device.

[0020] 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.

[0021] 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 has an abnormality or is about to have an abnormality, only the battery module that has an abnormality or is about to have an abnormality is separated out, and the battery module in normal state continues to supply power normally, thereby improving the power supply efficiency.

[0022] In some possible embodiments, the battery includes a high-voltage circuit area, and the switch assembly is disposed in the high-voltage circuit area.

[0023] The above technical solution, which places the switch assembly in the high-voltage circuit area of ​​the battery, is not only simple to operate and easy to implement, but also can reduce the adverse effects of abnormal battery modules on the switch assembly when an abnormal state or a battery module is about to be abnormal. For example, it can reduce the impact of high-temperature and high-pressure gases generated by a battery module experiencing thermal runaway on the switch assembly.

[0024] In a second aspect, a control method is provided, which is applied to a first on-off component in an on-off component, the method comprising: receiving control information, the control information being used 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 has reached 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 plurality of battery modules.

[0025] 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.

[0026] In some possible embodiments, the first on-off component includes a first relay, and the disconnection with the first battery module and the closing of the connection with other battery modules among the multiple battery modules based on the control information include: closing the switch leading to the first battery module and opening the switch leading to the other battery modules based on the control information.

[0027] In some possible embodiments, there are multiple on / off components.

[0028] In some possible embodiments, the on-off assembly further includes a second on-off assembly, and the second on-off assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0029] 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.

[0030] In a third aspect, a control device is provided, which is a first on-off component in the on-off component, 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 a plurality of 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 plurality of battery modules based on the control information.

[0031] 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.

[0032] 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.

[0033] In some possible embodiments, there are multiple on / off components.

[0034] In some possible embodiments, the on-off assembly further includes a second on-off assembly, and the second on-off assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0035] 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.

[0036] 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 implementations.

[0037] In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, which enables a computer to execute the method in the above-mentioned second aspect or its various implementations. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. 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 creative work.

[0039] In the drawings, the drawings are not drawn to scale.

[0040] FIG1 is a schematic diagram of a battery according to an embodiment of the present application.

[0041] FIG2 is a plan view of the battery shown in FIG1.

[0042] FIG3 is a schematic structural diagram of a battery module according to an embodiment of the present application.

[0043] FIG. 4 is an exploded view of a battery cell according to an embodiment of the present application.

[0044] FIG5 is a schematic flowchart of a control method according to an embodiment of the present application.

[0045] FIG6 is a schematic block diagram of a control device according to an embodiment of the present application.

[0046] FIG7 is a schematic block diagram of a control device according to an embodiment of the present application. DETAILED DESCRIPTION

[0047] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0048] In the description of this application, it should be noted that, unless otherwise specified, "multiple" 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 this 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 this application.

[0049] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" 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-secondary relationship.

[0050] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0051] In the field of new energy, batteries can serve as the primary power source for electrical devices (such as vehicles, ships, or spacecraft). The battery referred to in the embodiments of this application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in this application may include a battery module or a battery pack.

[0052] During battery use, abnormal conditions may occur. For example, deformation, thermal runaway due to elevated battery temperatures, or other reasons. Typically, when an abnormal condition occurs, the entire pack's relays disconnect, potentially causing the entire pack to lose power, preventing the electric vehicle from continuing to operate, and potentially causing a power shortage in the battery pack's thermal management system.

[0053] In view of this, an embodiment of the present application proposes a battery comprising multiple battery modules and a switching assembly, wherein the switching assembly comprises a first switching assembly 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 switching assembly is configured to disconnect from the first battery module and close the connection with the other battery modules among the multiple battery modules. In this way, if any battery module experiences an abnormality or is about to experience an abnormality, the battery module experiencing the abnormality or about to experience an abnormality is separated by the switching assembly connected to the battery module, while the other battery modules continue to supply power normally, allowing the electrical equipment including the battery to be used normally.

[0054] The technical solutions described in the embodiments of this application are applicable to various electrical devices that use batteries.

[0055] Electrical equipment may include, for example, vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools. Vehicles may be fuel vehicles, gas vehicles, or new energy vehicles. New energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles. Spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical equipment.

[0056] Figures 1 and 2 show schematic diagrams of a battery 10 according to an embodiment of the present application. As shown in Figures 1 and 2, the battery 10 includes multiple battery modules 110 and a switching assembly 120. The switching assembly 120 includes a first switching assembly 121, which is connected to a first battery module 111 among the multiple battery modules 110. When the battery status parameter of the first battery module 111 reaches a threshold value, the first switching assembly 121 is configured to disconnect from the first battery module 111 and close the connection with the other battery modules among the multiple battery modules 110.

[0057] Battery state parameters may include temperature and / or voltage. In addition, battery state parameters may also include pressure, stress, or characteristic gas.

[0058] 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.

[0059] It should be noted that, for the sake of convenience, the following text will uniformly indicate that an abnormality has occurred in the battery module 110 when the battery status parameter reaches a threshold value, but it should be understood that the embodiments of the present application are not limited to this.

[0060] As shown in Figure 3, 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 a 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.

[0061] The battery cell 20 is described below with reference to FIG4 . FIG4 is a schematic diagram of the structure of a battery cell 20 . The battery cell 20 includes one or more electrode assemblies 22 , a housing 211 , and a cover plate 212 . The housing 211 and the cover plate 212 form the outer shell or battery case 21 . The walls of the housing 211 and the cover plate 212 are collectively referred to as the walls of the battery cell 20 . The shape of the housing 211 depends on the shape of the one or more electrode assemblies 22 . For example, the housing 211 may be a hollow rectangular parallelepiped, a cube, or a cylinder, with one of the faces of the housing 211 having an opening to allow the one or more electrode assemblies 22 to be placed within the housing 211 . For example, when the housing 211 is a hollow rectangular parallelepiped or a cube, one of the planes of the housing 211 is an open face, meaning that the plane has no walls, allowing the interior and exterior of the housing 211 to communicate. When the housing 211 is a hollow cylinder, the end faces of the housing 211 are open faces, meaning that the end faces have no walls, allowing the interior and exterior of the housing 211 to communicate. 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 an electrolyte, such as an electrolyte solution.

[0062] 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 typically flat, with the two electrode terminals 214 secured to the flat surface of the cover plate 212. 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 connecting member 23, also known as a current collecting member 23, which is located between the cover plate 212 and the electrode assembly 22 and electrically connects the electrode assembly 22 to the electrode terminals 214.

[0063] As shown in FIG4 , each electrode assembly 22 has a first electrode tab 221a and a second electrode tab 222a. The polarity of the first electrode tab 221a and the second electrode tab 222a are opposite. For example, when the first electrode tab 221a is a positive electrode tab, the second electrode tab 222a is a negative electrode tab. The first electrode tab 221a of one or more electrode assemblies 22 is connected to one electrode terminal via a connecting member 23, and the second electrode tab 222a of one or more electrode assemblies 22 is connected to another electrode terminal via another connecting member 23. For example, the positive electrode terminal 214a is connected to the positive electrode tab via one connecting member 23, and the negative electrode terminal 214b is connected to the negative electrode tab via another connecting member 23.

[0064] In the battery cell 20 , the electrode assembly 22 can be provided as a single one or multiple ones according to actual use requirements. As shown in FIG. 4 , four independent electrode assemblies 22 are provided in the battery cell 20 .

[0065] 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 of the battery cell 20 when the internal pressure or temperature reaches a threshold value. The pressure relief mechanism 213 may be a variety of 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.

[0066] In the embodiment of the present application, if any battery module 110 experiences an abnormality or is about to experience an abnormality, the battery module 110 that is experiencing an abnormality or is about to experience an abnormality is disconnected through the on-off assembly 120 connected to the battery module 110, while the other battery modules 110 continue to supply power normally, allowing the electrical equipment that includes the battery 110 to function normally. For example, the electrical equipment can operate normally and the thermal management system can provide power normally.

[0067] 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. Placing the switch assembly 120 in the high-voltage circuit area of ​​the battery 10 is not only simple and easy to operate, but also reduces the adverse effects of the abnormal or impending abnormal battery module 110 on the switch assembly 120 when any battery module 110 experiences or is about to experience an abnormality. For example, the effects of high-temperature, high-pressure gas generated by a battery module 110 experiencing thermal runaway on the switch assembly 120 can be reduced.

[0068] Alternatively, the switch assembly 120 may also be disposed in other areas of the battery 10 .

[0069] Optionally, the first switching component 121 may include multiple interfaces, for example, four interfaces.

[0070] Alternatively, referring again to Figures 1 and 2, the first on-off component 121 may include a first interface, a second interface and a third interface, and the first on-off component 121 is connected to the positive and negative poles 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.

[0071] This technical solution configures the first switch assembly 121 to include three interfaces, enabling connection between the first switch assembly 121 and its adjacent switch assembly. This allows for the separation of the battery module 110 from the affected or impending failure while maintaining power supply to the remaining battery modules 110, ensuring normal operation of the electrical equipment containing the battery 110.

[0072] In some embodiments, there may be multiple on-off components 120. In this way, when any battery module is abnormal or about to be abnormal, other battery modules can be guaranteed to supply power to the power-consuming device normally, so that the power-consuming device can be used normally.

[0073] As an example, the switch assembly may further include a second switch assembly connected to a second battery module among the plurality of battery modules, where the number of second battery modules is multiple. For example, if there are three battery modules 110 and two switch assemblies 120, one of the two switch assemblies 120 can be connected to two of the three battery modules 110. This ensures that if any battery module 110 experiences an abnormality or is about to experience an abnormality, other battery modules will be available to supply power to the power-consuming device, allowing the device to function normally.

[0074] In this technical solution, one on-off component is connected to multiple battery modules, reducing the number of on-off components. This can ensure that other battery modules can provide normal power supply to the power consumption device at a lower cost when any battery module has an abnormality or is about to have an abnormality.

[0075] As another example, the number of the switch assemblies 120 may be the same as the number of the plurality of battery modules 110. That is, each switch assemblies in the switch assemblies is connected to each battery module in the plurality of battery modules.

[0076] For example, as shown in Figures 1 and 2 , there are two switch assemblies 120 and a plurality of battery modules 110. In this case, each switch assemblies 120 can be connected to each battery module 110 respectively.

[0077] 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 one-to-one to the battery modules 110, so that when any battery module 110 has an abnormality or is about to have an abnormality, only the battery module 110 that has an abnormality or is about to have an abnormality is separated, and the battery module 110 in a normal state continues to supply power normally, thereby improving the power supply efficiency.

[0078] In some embodiments, the first switching component 121 may be further configured to receive control information and, based on the received control information, disconnect the first battery module 111 and close connections with other battery modules in the plurality of battery modules 110. The control information may be used to indicate that a battery status parameter of the first battery module 111 has reached a threshold.

[0079] The battery 10 may include a battery management system (BMS), which may monitor 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.

[0080] 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.

[0081] Optionally, the first on / off assembly 121 can communicate with the BMS via wired or wireless communication. Wired communication methods may include, for example, a control area network (CAN) communication method or a daisy chain communication method. Wireless communication methods may include, for example, Bluetooth communication, wireless fidelity (WIFI) communication, ZigBee communication, and other methods, which are not limited herein.

[0082] 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 control the first switching component 121 .

[0083] 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 has reached 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, 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.

[0084] In some embodiments, the switching component 120 may include a relay, that is, the first switching component 121 may include a first relay. In this case, when the battery status 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.

[0085] Referring again to Figure 2 , battery module 110 includes a first battery module 111 and a second battery module 112, and switching assembly 120 includes a first relay and a second relay. When battery 10 is in a normal state, e.g., not experiencing thermal runaway, the power-up circuit for battery 10 may be, in this order: first relay → circuit 1 → first battery module 111 → circuit 2 → circuit 3 → circuit 4 → second battery module 112 → circuit 5 → second relay.

[0086] If a battery cell in the first battery module 111 experiences thermal runaway, the entire pack's power supply circuit can be the first relay → line 3 → line 4 → second battery module 112 → line 5 → second relay. This isolates the first battery module 111, ensuring the entire pack remains powered, allowing the device to continue driving.

[0087] If a battery cell in the second battery module 112 experiences thermal runaway, the entire pack's power-up circuit can be: first relay → line 1 → first battery module 111 → line 2 → line 3 → second relay. This isolates the second battery module 112, ensuring the entire pack remains powered, allowing the device to continue driving.

[0088] 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.

[0089] It should be understood that, under the premise of no conflict, the various embodiments and / or technical features in the various embodiments described in this application can be arbitrarily combined with each other, and the technical solutions obtained after the combination should also fall within the scope of protection of this application.

[0090] 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.

[0091] Fig. 5 shows a schematic flow chart of a control method 500 according to an embodiment of the present application. As shown in Fig. 5 , the method 500 may include at least part of the following contents.

[0092] 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.

[0093] S520: Based on the control information, disconnect the first battery module and close the connections with the other battery modules in the plurality of battery modules.

[0094] Optionally, in some embodiments, 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.

[0095] Optionally, in some embodiments, the first on-off component includes a first relay, and S520 may specifically include: closing a switch leading to the first battery module and opening switches leading to other battery modules based on the control information.

[0096] Optionally, in some embodiments, there are multiple on / off components.

[0097] Optionally, in some embodiments, the on-off assembly further includes a second on-off assembly, and the second on-off assembly is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

[0098] Optionally, in some embodiments, the number of the switch assemblies is the same as the number of the plurality of battery modules, and each of the switch assemblies is respectively connected to each of the plurality of battery modules.

[0099] Optionally, in some embodiments, the on-off assembly is disposed in a high-voltage circuit area of ​​the battery.

[0100] It should be understood that the method 500 shown in FIG5 can be executed by the first on-off component in the aforementioned embodiment, and for the sake of brevity, it will not be described in detail here.

[0101] The variations of various operations of 511 should also be taken into account.

[0102] FIG6 shows a schematic block diagram of a control device 600 according to an embodiment of the present application. As shown in FIG6 , the control device 600 may include:

[0103] The communication unit 610 is configured to receive control information, where the control information is configured to indicate that a battery status parameter of a first battery module connected to the first switching component among the plurality of battery modules has reached a threshold value.

[0104] The processing unit 620 is configured to disconnect the first battery module and close connections with other battery modules in the plurality of battery modules based on the control information.

[0105] 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 pole and the negative pole of the first battery module, and the third interface is connected to an adjacent on-off component.

[0106] Optionally, in an embodiment of the present application, the first on-off component includes a first relay, and the processing unit 620 is specifically configured 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.

[0107] Optionally, in an embodiment of the present application, there are multiple on / off components.

[0108] 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.

[0109] 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.

[0110] Optionally, in some embodiments, the on-off assembly is disposed in a high-voltage circuit area of ​​the battery.

[0111] 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.

[0112] 7 is a schematic diagram of the hardware structure of a control device 700 according to 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 via the bus 704.

[0113] The memory 701 may be a read-only memory (ROM), a static storage device, or a random access memory (RAM). The memory 701 may store programs. 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 perform the various steps of the control method of the embodiment of the present application.

[0114] The processor 702 can be 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 required 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.

[0115] The processor 702 may also be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the control method of the embodiment of the present application may be completed by hardware integrated logic circuits in the processor 702 or software instructions.

[0116] 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 various methods, steps, and logic block diagrams disclosed in the embodiments of the present application may be implemented or executed. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods 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 storage medium mature 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, or the like. The storage medium is located in the memory 701, and the processor 702 reads the information in the memory 701 and, in combination with its hardware, completes the functions required to be executed by the units included in the control device 700 of the embodiment of the present application, or executes the control method of the embodiment of the present application.

[0117] The communication interface 703 uses a transceiver device such as, but not limited to, a transceiver to implement communication between the control device 700 and other devices or a communication network, such as receiving control information indicating that a battery status parameter of a first battery module connected to the first switching component among the plurality of battery modules has reached a threshold.

[0118] The bus 704 may include a path for transmitting information between various components of the control device 700 (eg, the memory 701 , the processor 702 , and the communication interface 703 ).

[0119] It should be noted that although the above-mentioned device for determining control 700 only shows a memory, a processor, and a communication interface, during the specific implementation process, those skilled in the art will understand that the control device 700 may also include other devices necessary for normal operation. At the same time, according to specific needs, those skilled in the art will understand that the control device 700 may also include hardware devices that implement other additional functions. In addition, those skilled in the art will understand that the device for determining control 700 may also include only the devices necessary to implement the embodiments of the present application, and does not necessarily include all the devices shown in Figure 7.

[0120] An embodiment of the present application further provides a computer-readable storage medium for storing a computer program, which is used to execute the methods of the various embodiments of the present application described above.

[0121] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0122] An embodiment of the present application further 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.

[0123] 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 them. 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. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, characterized in that, Comprising: A plurality of battery modules; A switching component, including a first switching component, the first switching component being connected to a first battery module among the plurality of battery modules, and in the case where a battery state parameter of the first battery module reaches a threshold, the first switching component 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.

2. The battery according to claim 1, characterized in that, The first switching 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 switching component.

3. The battery according to claim 1 or 2, characterized in that, The first switching 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 plurality of battery modules, wherein the control information is used to indicate that the battery state parameter of the first battery module reaches the threshold.

4. The battery according to any one of claims 1 to 3, characterized in that The first switching component is a first relay, and in the case where the battery state 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 any one of claims 1 to 4, characterized in that, The number of the switching components is multiple.

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

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

8. The battery according to any one of claims 1 to 7, characterized in that, The battery includes a high-voltage circuit area, and the switching component is disposed in the high-voltage circuit area.

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

10. The device according to claim 9, characterized in that, The first switching 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 switching component.

11. The device according to claim 9 or 10, characterized in that, The first switching component is a first relay, and specifically, the processing unit is configured 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.

12. The device according to any one of claims 9 to 11, characterized in that, The number of the switching components is multiple.

13. The device according to claim 12, wherein The switching component further includes a second switching component, the second switching component is connected to a second battery module among the plurality of battery modules, and the number of the second battery modules is multiple.

14. The device according to claim 12, wherein The number of the switching components is the same as the number of the plurality of battery modules, and each of the switching components is respectively connected to each of the plurality of battery modules.

Images