Battery, battery system and electrical device

Abstract

Disclosed in the present application are a battery, a battery system and an electrical device. The battery comprises: a battery module, connected to a first power supply bus; a first housing, the battery module being arranged in the first housing, the first housing comprising a first wall part, the first wall part being provided with a first connecting member used for connecting to a load, and an output end of the first power supply bus being connected to the first connecting member; and a first switch member, arranged at the output end of the first power supply bus and configured to control on / off of an electric path between the first power supply bus and the first connecting member. The mode at least can reduce external high-voltage risks of the battery, thus improving the safety of the battery.

Description

Battery, battery system and power-consuming device

[0001] This application claims priority to Chinese patent application No. 202321988215X filed on July 26, 2023, entitled “A battery, a battery system, and an electrical device,” which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the field of battery technology, and in particular to a battery, a battery system, and an electrical device. Background Art

[0003] With the development of battery technology, batteries are being used in a growing number of fields, gradually replacing traditional fossil fuels in areas such as automotive propulsion. Batteries store chemical energy and controllably convert it into electrical energy. In recyclable batteries, after discharge, the active materials can be reactivated through recharging for continued use.

[0004] Because battery systems, key components in electrical devices like electric vehicles, have voltages ranging from tens to hundreds of volts, they present high-voltage safety risks during use, maintenance, and production. Related technologies have mitigated these risks by adding fuses inside the battery housing. However, this approach only provides protection against external short circuits or electric shocks, leaving the battery exposed to external high-voltage safety risks.

[0005] Summary of the Invention

[0006] In view of the above problems, the present application provides a battery, a battery system and an electrical device to at least reduce the risk of high voltage exposure of the battery to the outside and improve the safety of the battery.

[0007] In a first aspect, the present application provides a battery, comprising: a battery module connected to a first power bus; a first housing, the battery module being disposed within the first housing, the first housing including a first wall portion, the first wall portion being provided with a first connector for connecting to a load, the output end of the first power bus being connected to the first connector; and a first switch disposed at the output end of the first power bus, configured to control the on / off of an electrical path between the first power bus and the first connector. In the above manner, a first connector connected to the load is disposed on the first housing of the battery, so that electrical transmission between the battery module within the first housing of the battery and the load is achieved through the first connector; and a first switch is disposed at the output end of the first power bus of the battery module, and the on / off of the electrical path between the first power bus and the first connector is controlled by the first switch. Since the first power bus is connected to the load through the first connector, the on / off of the electrical path between the first power bus of the battery module and the load can be controlled by the first switch, thereby electrically disconnecting the battery module from the load through the first switch, thereby enabling the on / off of the electrical path between the battery module and the load, at least reducing the risk of high voltage exposure to the outside of the battery and improving the safety of the battery. Furthermore, the first switch element is arranged at the output end of the first power supply bus, and there is no need to change the structure of the original internal components of the battery such as the battery module and the connection structure between the components, which simplifies the process and reduces the cost.

[0008] In some embodiments, the first wall portion is provided with a first through-hole, the first connector is mounted on a side of the first wall portion facing away from the battery module, and a portion of the first switch element or a portion of the output terminal is disposed within the first through-hole and connected to the first connector. Mounting the first connector on the side of the first wall portion facing away from the battery module, i.e., on the outside of the first housing, can reduce interference with the battery module caused by the first connector. Furthermore, routing the connection terminal of the first switch element or the output terminal of the first power bus through the first through-hole in the first wall portion can simplify the structure and process.

[0009] In some embodiments, the first switch is disposed on a side of the first wall portion close to the battery module, and a portion of the first switch is disposed within the first through hole, and the first switch is connected to the output end of the first power bus and the first connector, respectively. Disposing the first switch on a side of the first wall portion of the first housing close to the battery module, i.e., on the inner side of the first housing, can protect the first switch through the first housing and reduce erroneous operation of the first switch. Furthermore, one connection end of the first switch extends through the first through hole to the outer side of the first housing and connects to the first connector, such that the first switch is disposed between the output end of the first power bus and the first connector, thereby enabling the first switch to control the on / off of the electrical path between the first power bus and the first connector.

[0010] In some embodiments, the first switch is disposed on a side of the first wall facing away from the battery module, and a portion of the first switch is disposed within the first through hole, and the first switch is respectively connected to the output end of the first power bus and the first connector. Disposing the first switch on a side of the first wall of the first housing facing away from the battery module, i.e., on the outside of the first housing, can improve the convenience of operating the first switch. When the first switch needs to be operated, there is no need to operate the first housing and its internal components. Furthermore, a connection end of the first switch extends through the first through hole to the outside of the first housing and connects to the first connector, so that the first switch is disposed between the output end of the first power bus and the first connector, thereby enabling the first switch to control the on / off of the electrical path between the first power bus and the first connector.

[0011] In some embodiments, the first switch is disposed on a side of the first wall portion proximate to the battery module, and the first switch is connected in series to the output end of the first power bus. A portion of the output end of the first power bus is disposed within the first through-hole and connected to the first connector. Disposing the first switch on a side of the first wall portion of the first housing proximate to the battery module, i.e., on the inner side of the first housing, protects the first switch through the first housing and reduces erroneous operation of the first switch. Furthermore, the first switch is connected in series to the output end of the first power bus and is connected to the first connector via the output end of the first power bus. The first switch can control the on / off status of the electrical path between the first power bus and the first connector.

[0012] In some embodiments, the battery further comprises a connecting socket mounted at the first through hole, the first switch being plugged into the connecting socket. The connecting socket allows the first switch to be connected to the first wall portion, thereby improving the convenience of attaching and detaching the first switch.

[0013] In some embodiments, the first connecting member is fixed to the connecting socket, which can improve the convenience of installing and removing the first connecting member.

[0014] In some embodiments, the first connector extends perpendicularly to the axial direction of the first through hole. The axial direction of the first through hole coincides with the thickness direction of the first wall. Arranging the first connector's extension direction perpendicularly to the thickness direction of the first wall allows the first connector to extend along the surface of the first wall, using the first wall as a supporting and protective surface, reducing the risk of damage to the first connector. Furthermore, the first connector and the first wall share an extension space, thereby reducing the size of the battery.

[0015] In some embodiments, the first wall portion includes a panel, and the first connector is disposed on the panel. Disposing the first connector on the panel of the first housing facilitates connection between the first power bus of the battery module and the first connector, shortening the electrical path therebetween, and facilitates connection between the first connector and the load, reducing interference with the first connector.

[0016] In some embodiments, the battery further comprises a panel disposed on a side of the first wall portion facing away from the battery module, the first connector being disposed on the panel. Providing the first connector on a panel independent of the first housing can improve the overall reliability of the first housing, and connecting the first connector to the first housing via the panel allows maintenance of the first connector without disassembly of the first housing, thereby improving the ease of maintenance of the first connector.

[0017] In some embodiments, the first power supply bus includes a high-voltage busbar, and the first connector includes a high-voltage connector. A high-voltage connector connected to the load is disposed on the first housing, and a first switch is disposed at the output end of the high-voltage busbar. The first switch controls the electrical path between the high-voltage busbar and the high-voltage connector, thereby reducing the high-voltage safety risk of the battery being exposed to external voltage.

[0018] In some embodiments, the high-voltage busbar includes a high-voltage positive busbar, and the high-voltage connector includes a high-voltage positive output port. A first switch is provided at the output end of the high-voltage positive busbar, and the first switch controls the electrical path between the high-voltage positive busbar and the high-voltage positive output port, thereby reducing the battery's external high-voltage safety risks. Furthermore, disconnecting the electrical path from the load at the output end of the high-voltage positive busbar (i.e., the output end of the battery's high-voltage main positive) can improve the real-time performance of power-off control and further enhance battery safety.

[0019] In some embodiments, the first switch element includes a relay. Utilizing a relay to implement the first switch element can further improve battery safety due to the relay's advantages of high sensitivity, low control power, good electromagnetic compatibility, long life, and high reliability.

[0020] In some embodiments, the first switch comprises a manual maintenance switch having a built-in relay. Implementing the first switch using a manual maintenance switch with a built-in relay not only replaces the manual maintenance switch on the transmission battery pack for disconnecting the positive and negative electrical paths of the battery cells, but also enables an electrical circuit between the battery and the load, thereby at least minimizing the risk of external high voltage.

[0021] In some embodiments, the battery further includes a battery management unit (BMU) connected to the first switch element. The first switch element receives a first control signal from the BMU and controls the opening and closing of an electrical path between the first power bus and the first connector based on the first control signal. The first switch element is electrically connected to the BMU so that the BMU controls the operation of the first switch element based on parameters of the battery module, etc., thereby improving automated monitoring of the battery module, etc., and automated control of opening and closing the first switch element, etc., thereby enhancing control accuracy and real-time performance, and improving battery safety.

[0022] In a second aspect, the present application provides a battery system, comprising: a battery connected to a second power supply bus; a second housing, the battery being disposed within the second housing, the second housing including a second wall portion, the second wall portion being provided with a second connector for connecting to a load, the output end of the second power supply bus being connected to the second connector; a second switch disposed at the output end of the second power supply bus, configured to control the on / off of an electrical path between the second power supply bus and the second connector. In the above manner, a second connector connected to the load is disposed on the second housing of the battery system, so that electrical transmission between the battery in the second housing and the load is achieved through the second connector; and a second switch is disposed at the output end of the second power supply bus of the battery system, and the on / off of the electrical path between the second power supply bus and the second connector is controlled by the second switch. Since the second power supply bus is connected to the load through the second connector, the on / off of the electrical path between the second power supply bus of the battery and the load can be controlled by the second switch, thereby electrically disconnecting the battery from the load through the second switch, thereby enabling the on / off of the electrical path between the battery and the load, at least reducing the risk of high voltage to the outside of the battery and improving the safety of the battery. Furthermore, the second switch element is arranged at the output end of the second power supply bus, and there is no need to change the structure of the original internal components of the battery system such as the battery and the connection structure between the components, which simplifies the process and reduces the cost.

[0023] In some embodiments, the second wall portion is provided with a second through-hole, a second connector is mounted on a side of the second wall portion facing away from the battery, and a portion of the second switch element or a portion of the output end of the second power bus is disposed within the second through-hole and connected to the second connector. Mounting the second connector on the side of the second wall portion facing away from the battery, i.e., on the outside of the second housing, can reduce interference with the battery caused by the second connector. Furthermore, routing the connection end of the second switch element or the output end of the second power bus through the second through-hole in the second wall portion can simplify the structure and process.

[0024] In some embodiments, the second switch is disposed on a side of the second wall portion near the battery, and a portion of the second switch is disposed within the second through-hole. The second switch is connected to the output end of the second power bus and the second connector, respectively. Disposing the second switch on a side of the second wall portion of the second housing near the battery, i.e., on the inner side of the second housing, protects the second switch through the second housing and reduces erroneous operation of the second switch. Furthermore, one connection end of the second switch extends through the second through-hole to the outer side of the second housing and connects to the second connector, allowing the second switch to be disposed between the output end of the second power bus and the second connector, thereby enabling the second switch to control the on / off of the electrical path between the second power bus and the second connector.

[0025] In some embodiments, the second switch is disposed on a side of the second wall facing away from the battery module, and a portion of the second switch is disposed within the second through hole, and the second switch is connected to the output end of the second power bus and the second connector, respectively. Disposing the second switch on the side of the second wall of the second housing facing away from the battery, i.e., on the outside of the second housing, can improve the convenience of operating the second switch. When the second switch needs to be operated, there is no need to operate the second housing and its internal components. Furthermore, one connection end of the second switch extends through the second through hole to the outside of the second housing and connects to the second connector, so that the second switch is disposed between the output end of the second power bus and the second connector, thereby enabling the second switch to control the on / off of the electrical path between the second power bus and the second connector.

[0026] In some embodiments, a second switch is disposed on a side of the wall portion proximate to the battery, and the second switch is connected in series to the output end of the second power bus. A portion of the output end of the second power bus is disposed within the second through-hole and connected to the second connector. Positioning the second switch on a side of the second wall portion of the second housing proximate to the battery, i.e., on the inner side of the second housing, protects the second switch through the second housing and reduces erroneous operation of the second switch. Furthermore, the second switch is connected in series to the output end of the second power bus and is connected to the second connector via the output end of the second power bus. The second switch can control the on / off status of the electrical path between the second power bus and the second connector.

[0027] On the third aspect, the present application provides an electrical device, including the above-mentioned battery and / or the above-mentioned battery system, which can at least reduce the high voltage risk of the battery to the outside and improve the safety of the battery.

[0028] In some embodiments, the power-consuming device further comprises a vehicle controller, wherein a first switch element and a second switch element are connected to the vehicle controller. The first switch element receives a second control signal from the vehicle controller and, based on the second control signal, controls the on / off switching of a power supply path from a first power supply bus to a first connector. The second switch element receives a third control signal from the vehicle controller and, based on the third control signal, controls the on / off switching of a power supply path from a second power supply bus to a second connector. The switch element is electrically connected to the vehicle controller so that the vehicle controller controls the operation of the switch element based on vehicle conditions, thereby improving automated monitoring of the power-consuming device and automated control of the switch element, etc., thereby increasing control accuracy and real-time performance, and enhancing battery safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] FIG1 is a schematic structural diagram of a vehicle according to one or more embodiments;

[0031] FIG2 is a schematic diagram of an exploded structure of a battery according to one or more embodiments;

[0032] FIG3 is a second structural diagram of a battery according to one or more embodiments;

[0033] FIG4 is a third structural schematic diagram of a battery according to one or more embodiments;

[0034] FIG5 is a fourth structural diagram of a battery according to one or more embodiments;

[0035] FIG6 is a schematic structural diagram of a wall portion of a battery according to one or more embodiments;

[0036] FIG7 is a schematic front view of the wall portion shown in FIG6 ;

[0037] FIG8 is a bottom view of the wall portion shown in FIG6 ;

[0038] FIG9 is a fifth structural diagram of a battery according to one or more embodiments;

[0039] FIG10 is a schematic structural diagram of a battery system according to one or more embodiments.

[0040] The accompanying drawings in the specific implementation manner are as follows:

[0041] Vehicle 1000a, battery 100a, controller 200a, motor 300a, battery module 20, first shell 21, first switch 22, first power supply bus 201, first wall 211, first connector 210, connection socket 23, panel 211a, side panel 211b, bottom plate 211d, top cover 211c, high-voltage positive busbar A1, high-voltage positive output port B1, battery management unit 24, high-voltage negative busbar A2, high-voltage negative output port B2, low-voltage input port C1, low-voltage output port C2, heating input port D1, heating output port D2, second shell 111, second switch 112, second power supply bus 221, second connector 220, second wall 231. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments 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 figure descriptions are intended to cover non-exclusive inclusions.

[0044] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present 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 herein may be combined with other embodiments.

[0045] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0046] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0048] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0049] With the development of battery technology, batteries are being used in a growing number of fields, gradually replacing traditional fossil fuels in areas such as automotive propulsion. Batteries store chemical energy and controllably convert it into electrical energy. In recyclable batteries, after discharge, the active materials can be reactivated through recharging for continued use.

[0050] Because battery systems, key components in electrical devices like electric vehicles, have voltages ranging from tens to hundreds of volts, they present high-voltage safety risks during use, maintenance, and production. Related technologies have mitigated these risks by adding fuses inside the battery housing. However, this approach only provides protection against external short circuits or electric shocks, leaving the battery exposed to external high-voltage safety risks.

[0051] Based on the above considerations, the present application provides a battery, a battery system and an electrical device. Among them, the battery includes a battery module, which is connected to a power supply bus; a shell, the battery module is arranged in the shell, and the shell is provided with a connector for connecting to a load, and the output end of the power supply bus is connected to the connector; a switch component is arranged at the output end and is configured to control the on-off of the power supply path of the power supply bus to the connector. In this way, the on-off of the electrical path between the power supply bus of the battery module and the load can be controlled by the switch component, so that the battery module and the load can be electrically disconnected by the switch component, which can realize the on-off of the electrical path of the battery module to the load, reduce the risk of high voltage of the battery to the outside, and improve the safety of the battery.

[0052] Furthermore, the electrical path inside the battery module also forms an electrical circuit through the power supply bus and the load. Therefore, when the electrical path of the battery module to the load is turned on and off, the electrical path inside the battery module can also be turned on and off simultaneously, which can further improve the safety of the battery.

[0053] Furthermore, the switch element of the present application is arranged at the output end of the power supply bus, and there is no need to change the structure of the original internal components of the battery such as the battery module and the connection structure between the components, which has a simple process and low cost.

[0054] The battery, battery system, and electrical device disclosed in the embodiments of the present application can be used in electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, and the like, and the spacecraft can include airplanes, rockets, space shuttles, and spacecraft, and the like.

[0055] For the convenience of description, the following embodiments are described by taking a vehicle 1000a as an example of an electrical device according to an embodiment of the present application.

[0056] Referring to Figure 1, vehicle 1000a can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery 100a is provided inside vehicle 1000a. Battery 100a can be provided at the bottom, head, or tail of vehicle 1000a. Battery 100a can be used to power vehicle 1000a. For example, battery 100a can serve as an operating power source for vehicle 1000a. Vehicle 1000a can also include a controller 200a and a motor 300a. Controller 200a is used to control battery 100a to power motor 300a, for example, to meet the power requirements for starting, navigating, and driving the vehicle 1000a.

[0057] In some embodiments of the present application, the battery 100a can serve not only as an operating power source for the vehicle 1000a, but also as a driving power source for the vehicle 1000a, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000a.

[0058] In some embodiments, the battery 100a may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0059] The battery 100 a 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.

[0060] In the embodiments of the present application, the battery may be a secondary battery, which refers to a battery that can be recharged to activate the active material after discharge and continue to be used. The battery may also be a primary battery.

[0061] Batteries include but are not limited to lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc.

[0062] In some embodiments, please refer to Figure 2, the battery 100a can be a battery pack, which includes: a battery module 20, a first shell 21 and a first switch 22, wherein the battery module 20 is connected to the first power supply bus 201, the battery module 20 is arranged in the first shell 21, the first shell 21 is provided with a first wall portion 211, and the first wall portion 211 is provided with a first connector 210 for connecting to a load, and the output end of the first power supply bus 201 is connected to the first connector 210; the first switch 22 is provided at the output end of the first power supply bus 201, and is configured to control the on and off of the electrical path between the first power supply bus 201 and the first connector 210.

[0063] The battery 100a may include one or more battery modules 20, each of which may include one or more battery cells. After being electrically connected, the multiple battery modules 20 are electrically connected to the load via a first power bus 201, serving as the total voltage line for the battery 100a, i.e., a voltage busbar. The first power bus 201 may include a positive power bus and a negative power bus. A positive port connected to the positive power bus and a negative port connected to the negative power bus may be provided on the wall portion 211. The positive power bus is electrically connected to the load via the positive port, and the negative power bus is electrically connected to the load via the negative port, thereby completing an electrical circuit between the battery modules 20 and the load.

[0064] Among them, the connection between the battery module 20 and the first power supply bus 201 means that the two are not only mechanically connected to improve the stability between the two, but also electrically connected to achieve electrical transmission; the output end of the first power supply bus 201 is connected to the first connecting member 210, including mechanical and electrical connections between the two; the first switch element 22 is arranged at the output end of the first power supply bus 201, which means that the first switch element 22 is connected to the end of the output end of the first power supply bus 201, or is connected in series with the output end near the end.

[0065] Among them, the output end of the first power supply bus 201 refers to the end of the first power supply bus 201 connected to the load, which is used to supply power to the load, etc.; the input end of the first power supply bus 201 is electrically connected to the battery module 20, which is used to obtain electrical energy from the battery module 20.

[0066] In some embodiments, when there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module. The battery module and auxiliary structural parts constitute the battery module 20, wherein the auxiliary structural parts have the functions of collecting current, collecting data, and fixing and protecting the battery cells.

[0067] In the battery module 20, there may be multiple battery cells, which can be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to multiple battery cells being connected both in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in a hybrid configuration to form a battery module 20. Multiple battery modules 20 are then connected in series, in parallel, or in a hybrid configuration to form a single unit and housed within the first housing 21. The battery 100a may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells.

[0068] The first housing 21 is used to provide a storage space for the battery module 20. The first housing 21 can be implemented in the form of a box or the like.

[0069] In some embodiments, the first housing 21 may serve as part of the chassis structure of the vehicle 1000a. For example, a portion of the first housing 21 may form at least a portion of the floor of the vehicle 1000a, or a portion of the first housing 21 may form at least a portion of a cross member or a longitudinal member of the vehicle 1000a.

[0070] The first switch element 22 refers to an element or component that can realize on-off of an electrical path. The on-off of the electrical path between the first power supply bus 201 and the load is realized by controlling the opening and closing of the first switch element 22 .

[0071] In this embodiment, a first connector 210 connected to the load is provided on the first shell 21 of the battery, so as to realize electrical transmission between the battery module 20 in the first shell 21 of the battery 100a and the load through the first connector 210; and a first switch 22 is provided at the output end of the first power supply bus 201 of the battery module 20, and the first switch 22 is used to control the on-off of the electrical path between the first power supply bus 201 and the first connector 210. Since the first power supply bus 201 is connected to the load through the first connector 210, the on-off of the electrical path between the first power supply bus 201 of the battery module 20 and the load can be controlled by the first switch 22, so that the battery module 20 and the load can be electrically disconnected through the first switch 22, which can realize the on-off of the electrical path of the battery module 20 to the load, and at least reduce the high voltage risk of the battery 100a to the outside, thereby improving the safety of the battery 100a.

[0072] Furthermore, the electrical path inside the battery module 20 also forms an electrical circuit through the first power supply bus 201 and the load. Therefore, when the electrical path of the battery module 20 to the load is turned on and off, the electrical path inside the battery module 20 can also be turned on and off synchronously, which can further improve the safety of the battery 100a.

[0073] Furthermore, the first switch element 22 is disposed at the output end of the first power supply bus 201 , without changing the structure of the original internal components of the battery 100 a such as the battery module 20 or the connection structure between the components, resulting in a simple process and low cost.

[0074] In some embodiments, the wall portion 211 of the first shell 21 is provided with a first through hole, the first connecting member 210 is installed on the side of the first wall portion 211 away from the battery module 20, and a portion of the first switch member 22 is provided in the first through hole and connected to the first connecting member 210.

[0075] Installing the first connecting member 210 on the side of the first wall portion 211 away from the battery module 20, that is, on the outside of the first shell 21, can reduce the interference of the first connecting member 210 on the battery module 20; and the connection end routing of the first switch member 22 is realized through the first through hole on the first wall portion 211, which can simplify the structure and process.

[0076] In some embodiments, the first wall portion 211 of the first shell 21 is provided with a first through hole, the first connecting member 210 is installed on the side of the first wall portion 211 facing away from the battery module 20, and the output end of the first power supply bus 201 is provided in the first through hole and connected to the first connecting member 210.

[0077] Installing the first connector 210 on the side of the first wall portion 211 away from the battery module 20, that is, on the outside of the first shell 21, can reduce the interference of the first connector 210 on the battery module 20; and the routing of the first power supply bus 201 is realized through the first through hole on the first wall portion 211, which can improve the routing stability of the first power supply bus 201 and simplify the structure and process.

[0078] In some embodiments, as shown in FIG3 , the first switch member 22 is disposed on a side of the first wall portion 211 of the first housing 21 close to the battery module 20, and a portion of the first switch member 22 is disposed within the first through hole. The first switch member 22 is connected to the first connector 210 at the output end of the first power bus 201. Specifically, one connection end of the first switch member 22 is connected to the output end of the first power bus 201, and the other connection end of the first switch member 22 is connected to the first connector 210.

[0079] The first switch component 22 is arranged on the side of the first wall portion 211 of the first shell 21 close to the battery module 20, that is, on the inner side of the first shell 21, so that the first switch component 22 can be protected by the first shell 21 and the erroneous operation of the first switch component 22 can be reduced; and one connecting end of the first switch component 22 passes through the first through hole and extends to the outside of the first shell 21 to be connected to the first connecting component 210, so that the first switch component 22 is arranged between the output end of the first power supply bus 201 and the first connecting component 210, thereby realizing the on-off control of the electrical path between the first power supply bus 201 and the first connecting component 210 by the first switch component 22.

[0080] In some embodiments, as shown in FIG4 , the first switch element 22 is disposed on a side of the first wall portion 211 facing away from the battery module 20, and a portion of the first switch element 22 is disposed within the first through hole. The first switch element 22 is connected to the output end of the first power bus 201 and the first connector 210, respectively. Specifically, one connection end of the first switch element 22 is connected to the output end of the first power bus 201, and the other connection end of the first switch element 22 is connected to the connector.

[0081] The first switch component 22 is arranged on the side of the first wall portion 211 of the first shell 21 away from the battery module 20, that is, on the outside of the first shell 21, which can improve the convenience of operating the first switch component 22. When the first switch component 22 needs to be operated, there is no need to operate the first shell 21 and its internal components; and one connecting end of the first switch component 22 passes through the first through hole and extends to the outside of the first shell 21 to be connected to the first connecting component 210, so that the first switch component 22 is arranged between the output end of the first power supply bus 201 and the first connecting component 210, thereby realizing the on-off control of the electrical path between the first power supply bus 201 and the first connecting component 210 by the first switch component 22.

[0082] In some embodiments, as shown in Figure 5, the first switch element 22 is arranged on a side of the first wall portion 211 close to the battery module 20, and the first switch element 22 is connected in series to the output end of the first power supply bus 201. A portion of the output end of the first power supply bus 201 is arranged in the first through hole and connected to the first connecting member 210.

[0083] Specifically, the first switch component 22 is connected in series to the output end of the first power supply bus 201, which means that the first switch component 22 is connected in series to the first power supply bus 201 and is arranged close to the output end; the output end of the first power supply bus 201 passes through the first through hole on the first wall portion 211 and extends to the outside of the first shell 21 and is connected to the first connecting component 210.

[0084] The first switch component 22 is arranged on the side of the first wall portion 211 of the first shell 21 close to the battery module 20, that is, on the inner side of the first shell 21, so that the first switch component 22 can be protected by the first shell 21 and the misoperation of the first switch component 22 can be reduced; and the first switch component 22 is connected in series to the output end of the first power supply bus 201, and is connected to the first connecting component 210 through the output end of the first power supply bus 201, so that the on-off control of the electrical path between the first power supply bus 201 and the first connecting component 210 can be achieved through the first switch component 22.

[0085] In some embodiments, as shown in FIG. 6 to FIG. 8 , the battery 100 a further includes a connection socket 23 installed at the through hole, and the first switch element 22 is plugged into the connection socket 23 .

[0086] Specifically, the connection socket 23 is installed at the first through hole, which means that the connection socket 23 is connected to the first wall portion 211 and covers the first through hole, so as to facilitate the installation of the first switch member 22 .

[0087] The connecting socket 23 can be installed on the inner end surface of the first through hole so as to be set inside the shell body 21; or the connecting socket 23 can be installed on the outer end surface of the first through hole so as to be set outside the first shell body 21; or part of the connecting socket 23 can be set inside the first through hole; etc., without specific limitation.

[0088] The connection between the first switch member 22 and the first wall portion 211 is achieved by connecting the socket 23 , which can improve the convenience of installing and removing the first switch member 22 .

[0089] In some embodiments, the first connecting member 210 is fixed to the connecting socket 23 , which can improve the convenience of assembling and disassembling the first connecting member 210 .

[0090] In some embodiments, the extension direction of the first connecting member 210 is perpendicular to the axial direction of the first through hole.

[0091] The axial direction of the first through hole is consistent with the thickness direction of the wall portion 211. The extension direction of the first connecting member 210 is set perpendicular to the thickness direction of the first wall portion 211, so that the first connecting member 210 can be extended along the surface of the first wall portion 211. The first wall portion 211 can be used as a supporting and protective surface to reduce the risk of damage to the first connecting member 210, and the first connecting member 210 and the first wall portion 211 can share the extension space to reduce the volume of the battery 100a.

[0092] In some embodiments, the first wall portion 211 includes a panel 211 a , and the first connecting member 210 is disposed on the panel 211 a .

[0093] Specifically, the first wall portion 211 further includes side panels 211b, the first housing 21 further includes a bottom plate 211d and an upper cover 211c, and the panel 211a is an end plate of the first housing 21. The panel 211a, as part of the first housing 21, together with the side panels 211b, upper cover 211c, and bottom plate 211d of the first housing 21, defines a storage space for accommodating the battery module 20 and the like.

[0094] The first connector 210 is arranged on the panel 211a of the first shell 21 to facilitate the connection between the first power supply bus 201 of the battery module 20 and the first connector 210, shorten the electrical path between the two, and facilitate the connection between the first connector 210 and the load, reducing interference with the first connector 210.

[0095] In some embodiments, the battery 100a further includes a panel 211a disposed on a side of the first wall 211 facing away from the battery module 20, and a first connector 210 disposed on the panel 211a. In this embodiment, the first connector 210 is disposed on the panel 211a, which is independent of the first housing 21. This improves the overall reliability of the first housing 21. Furthermore, the panel 211a connects the first connector 210 to the first housing 21, making it easier to maintain the first connector 210 without disassembling the first housing 21.

[0096] In some embodiments, the first power supply bus 201 includes a high-voltage busbar, and the first connector 210 includes a high-voltage connector.

[0097] A high-voltage connector connected to the load is provided on the first shell 21, a first switch 22 is provided at the output end of the high-voltage bus, and the electrical path between the high-voltage bus and the high-voltage connector is controlled by the first switch 22, thereby reducing the high-voltage safety risk of the battery 100a to the outside.

[0098] In some embodiments, as shown in FIG3 and FIG6 to FIG8, the high-voltage bus includes a high-voltage positive bus A1, the high-voltage connector includes a high-voltage positive output port B1, and the high-voltage positive bus A1 is electrically connected to the load through the high-voltage positive output port B1.

[0099] A first switch element 22 is provided at the output end of the high-voltage positive busbar A1, and the electrical path between the high-voltage positive busbar A1 and the high-voltage positive output port B1 is controlled by the first switch element 22, which can reduce the high-voltage safety risk of the battery 100a to the outside; and the electrical path from the load is disconnected from the output end of the high-voltage positive busbar A1 of the battery 100a, that is, the output end of the high-voltage total positive of the battery 100a, which can improve the real-time performance of the power-off control and further improve the safety of the battery 100a.

[0100] In some embodiments, the first switching element 22 includes a relay.

[0101] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity reaches the specified requirement. It has an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). It is actually an "automatic switch" that uses a small current to control the operation of a large current, so it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit.

[0102] The first switch 22 is implemented by a relay, which has the advantages of high sensitivity, low control power, good electromagnetic compatibility, long life and high reliability, thereby further improving the safety of the battery 100a.

[0103] In some embodiments, the first switch element 22 includes a manual maintenance switch with a relay disposed therein.

[0104] The manual maintenance switch can be used for short-circuit protection during maintenance of the high-voltage circuit system, and can provide safety and reliability for the maintenance of the power system of the vehicle 1000a. It can be used as a maintenance protection switch and also as a short-circuit protection.

[0105] Using a manual maintenance switch with a built-in relay as the first switch element 22 improves the reliability of the first switch element 22 due to its advantages such as sufficient system response time, high-reliability redundant design, and good heat dissipation design, thereby further enhancing the safety of the battery 100a. Furthermore, the manual maintenance switch offers advantages such as flexible installation methods, which can reduce the complexity of the battery 100a installation process and increase installation flexibility.

[0106] The first switch 22 is realized by using a manual maintenance switch with a built-in relay, which can not only replace the manual maintenance switch on the transmission battery pack for cutting off the positive and negative electrical paths of the battery cells, but also realize the electrical circuit between the battery 100a and the load to at least increase the risk of high voltage to the outside.

[0107] In some embodiments, as shown in Figure 9, the battery 100a also includes a battery management unit 24, which is connected to the first switch element 22. The first switch element 22 obtains a first control signal from the battery management unit 24 and controls the on and off of the electrical path between the first power supply bus 201 and the first connecting element 210 based on the first control signal.

[0108] The battery module 20 is monitored and managed by the battery management unit 24, specifically by collecting and calculating parameters such as voltage, current, temperature and SOC, and then controlling the current charging and discharging process of the battery module 20, thereby protecting the battery module 20 and improving the overall performance of the battery.

[0109] The control end of the first switch element 22 is electrically connected to the battery management unit 24, so that the battery management unit 24 controls the action of the first switch element 22 according to the parameters of the battery module 20, etc., so as to improve the automatic monitoring of the battery module 20, etc. and the automatic control of the first switch element 22, etc., which can improve the control accuracy and real-time performance, and improve the safety of the battery 100a.

[0110] Furthermore, after the vehicle 1000a is powered off, the battery management unit 24 is powered off, which causes the first switch element 22 to lose power, thereby automatically disconnecting the electrical path between the battery module 20 and the load.

[0111] The battery management unit 24 is disposed in the first housing 21 to be protected by the first housing 21 .

[0112] In some embodiments, referring to Figures 3, 6, and 8, a battery 100a includes a battery module 20, a first housing 21, and a first switch 22. The battery module 20 is connected to a first power bus 201 and disposed within the first housing 21. The first housing 21 includes a first wall 211, which includes a first connector 210 for connecting to a load. The first wall 211 of the first housing 21 includes a first through-hole. The first switch 22 is disposed on a side of the first wall 211 of the first housing 21 near the battery module 20, with a portion of the first switch 22 disposed within the first through-hole. The first switch 22 is connected to the first connector 210, an output terminal of the first power bus 201. Specifically, one connection terminal of the first switch 22 is connected to the output terminal of the first power bus 201, and the other connection terminal of the first switch 22 is connected to the first connector 210. The first switch 22 is configured to control the on / off state of the electrical path between the first power bus 201 and the first connector 210.

[0113] In this embodiment, a first connector 210 connected to the load is provided on the first shell 21 of the battery, so as to realize electrical transmission between the battery module 20 in the first shell 21 of the battery 100a and the load through the first connector 210; and a first switch 22 is provided between the output end of the first power supply bus 201 of the battery module 20 and the first connector 210, and the first switch 22 is used to control the on-off of the electrical path between the first power supply bus 201 and the first connector 210. Since the first power supply bus 201 is connected to the load through the first connector 210, the on-off of the electrical path between the first power supply bus 201 of the battery module 20 and the load can be controlled by the first switch 22, so that the battery module 20 and the load can be electrically disconnected through the first switch 22, which can realize the on-off of the electrical path of the battery module 20 to the load, and at least reduce the high voltage risk of the battery 100a to the outside, thereby improving the safety of the battery 100a. Furthermore, the internal electrical path of the battery module 20 also forms an electrical circuit through the first power bus 201 and the load. Therefore, when the battery module 20 switches the electrical path to the load, the internal electrical path of the battery module 20 is also switched simultaneously, further enhancing the safety of the battery 100a. Furthermore, the first switch 22 is disposed at the output end of the first power bus 201, eliminating the need to modify the existing internal component structures or interconnections of the battery module 20 and other battery 100a, resulting in a simple process and low cost.

[0114] Furthermore, the first switch component 22 is arranged on the side of the first wall portion 211 of the first shell 21 close to the battery module 20, that is, the inner side of the first shell 21, so that the first switch component 22 can be protected by the first shell 21 and the misoperation of the first switch component 22 can be reduced.

[0115] The wall portion 211 is the panel 211a of the first housing 21. The first connector 210 is disposed on the panel 211a of the first housing 21 to facilitate connection between the first power bus 201 of the battery module 20 and the first connector 210, shortening the electrical path therebetween and facilitating connection between the first connector 210 and the load, thereby reducing interference with the first connector 210.

[0116] In other embodiments, the first connecting member 210 may also be provided on other parts of the first housing 21 .

[0117] Furthermore, the battery 100a includes a connecting socket 23 mounted at the first through-hole, into which the first switch 22 is plugged. The connecting socket 23 is mounted on the outer end surface of the first through-hole, so as to be disposed outside the first housing 21. The connecting socket 23 connects the first switch 22 to the wall portion 211, thereby improving the ease of installation and removal of the first switch 22.

[0118] Furthermore, the first connecting member 210 and the connecting socket 23 are fixedly arranged, which can improve the convenience of assembling and disassembling the first connecting member 210 .

[0119] Among them, the first connecting member 210 can be integrally formed with the connecting socket 23 to improve the stability between the two, reduce the installation structure between the panel 211a, and improve the strength and other parameters of the panel 211a. The connection between the first connecting member 210 and the first switch member 22 can be achieved by simply installing the first switch member 22 on the connecting socket 23.

[0120] In other embodiments, the first switch element may also be directly fixed on the first housing.

[0121] In some embodiments, the extension direction of the first connecting member 210 is perpendicular to the axial direction of the first through hole.

[0122] The extension direction of the first connector 210 refers to the arrangement direction of the end of the first connector 210 connected to the first switch 22 and the end connected to the load. The axial direction of the first through-hole is aligned with the thickness direction of the first wall portion 211. Arranging the extension direction of the first connector 210 perpendicular to the thickness direction of the first wall portion 211 allows the first connector 210 to extend along the surface of the wall portion 211, using the wall portion 211 as a support and protection surface, reducing the risk of damage to the first connector 210. Furthermore, the first connector 210 and the wall portion 211 share the same extension space, thereby reducing the volume of the battery 100a.

[0123] In other embodiments, the first connector can extend axially along the first through hole and be supported by the support member, thereby shortening the electrical path between the first switch member or the first power bus and the first connector. Alternatively, the connector can extend in a direction that forms another angle with respect to the first wall portion.

[0124] In other embodiments, the first connecting member may be disposed on the inner side and extend from the first through hole to the outside of the housing to be connected to the load.

[0125] Furthermore, in some embodiments, the first power supply bus 201 includes a high-voltage positive busbar A1 and a high-voltage negative busbar A2, and the first connector 210 includes a high-voltage positive output port B1 and a high-voltage negative output port B2. The high-voltage positive busbar A1 is electrically connected to the load via the high-voltage positive output port B1, and the high-voltage negative busbar A2 is electrically connected to the load via the high-voltage negative output port B2. A first switch 22 is provided at the output end of the high-voltage positive busbar A1, and the first switch 22 controls the electrical path between the high-voltage positive busbar A1 and the high-voltage positive output port B1, thereby reducing the external high-voltage safety risk of the battery 100a.

[0126] In other embodiments, the first switch element can be set at the output end of the high-voltage negative bus; or switch elements can be set at the output end of the high-voltage positive bus and the output end of the high-voltage negative bus respectively to achieve redundant design and further improve safety.

[0127] In this embodiment, a relay is used to implement the first switch element 22. Since the relay has the advantages of high sensitivity, low control power, good electromagnetic compatibility, long life and high reliability, it can further improve the safety of the battery 100a.

[0128] Of course, in other embodiments, other switches may be used instead of relays.

[0129] Furthermore, this embodiment utilizes a manual maintenance switch with a built-in relay to implement the first switch element 22, which can not only replace the manual maintenance switch on the transmission battery pack for cutting off the positive and negative electrical paths of the battery cells, but also realize the electrical circuit between the battery 100a and the load, so as to at least increase the risk of high voltage to the outside.

[0130] In other embodiments, a relay box or the like may be used to implement the relay.

[0131] Furthermore, panel 211a is provided with a low-voltage input port C1, a low-voltage output port C2, a heating input port D1, and a heating output port D2. These ports are respectively connected to the battery module 20 or other components within the housing 21 to perform their corresponding functions. To improve safety, the aforementioned first switch elements can also be provided for these ports.

[0132] In other embodiments, the first shell may also adopt other structures, for example, an upper cover and a lower cover arranged together, or a top plate and a lower cover with an opening, a bottom plate and an upper cover with an opening, etc.

[0133] After the entire vehicle is powered off, the battery 100a is not working and the total positive and negative outputs carry high voltage electricity, which may cause the risk of high-voltage electric shock. The present application sets an external connector for the battery 100a, that is, designs a manual maintenance switch on the panel 211a of the above-mentioned first connector. The manual maintenance switch has a relay on-off design inside. One side of the relay is connected to the total positive inside the battery 100a and the high-voltage positive bus A1, and the other side of the relay is connected to the total positive output of the battery 100a, that is, the high-voltage positive output port B1. After the entire vehicle is powered off, the relay is disconnected from the low voltage, so that the total positive output of the battery 100a and the outside are automatically and completely disconnected, thereby completely isolating the battery 100a from the output end and the outside, providing a safer protection.

[0134] The manual maintenance switch is designed on the panel 211a of the battery 100a, and there is no need to change the internal structure of the battery 100a. The manual maintenance switch can play the role of a manual maintenance switch, and can also realize that after the whole vehicle is powered on at low voltage, the relay is actively disconnected, thereby disconnecting the electrical path between the high voltage inside the manual maintenance switch and the external connector, thereby achieving safer anti-electric shock protection.

[0135] Furthermore, the panel 211a may also be provided with another high-voltage positive output port B1 and another high-voltage negative output port B2 as a redundant design to further improve safety.

[0136] Furthermore, the panel 211a may be provided with a bracket, through which it is connected to the bottom plate and the side plate.

[0137] In some embodiments, as shown in Figure 10, the battery system includes: a battery 100a, a second shell 111 and a second switch 112, wherein the battery 100a is connected to the second power supply bus 221, the battery 100a is arranged in the second shell 111, the second shell 111 is provided with a second wall portion 231, and the second wall portion 231 is provided with a second connector 220 for connecting to a load, and the output end of the second power supply bus 221 is connected to the second connector 220; the second switch 112 is provided at the output end of the second power supply bus 221, and is configured to control the on and off of the electrical path between the second power supply bus 221 and the second connector 220.

[0138] The battery 100 a of this embodiment is the battery 100 a described in the above embodiment, and may also be the battery 100 a described in the above embodiment except for the second housing 111 thereof, including the battery module 20 and other components.

[0139] The battery system of this embodiment may include one or more batteries 100a. After the multiple batteries 100a are electrically connected, they are electrically connected to the load via a second power bus 221, which serves as the battery system's total voltage line, i.e., a voltage busbar. The second power bus 221 may include a positive power bus and a negative power bus. A positive port connected to the positive power bus and a negative port connected to the negative power bus may be provided on the wall 211 of the second housing 111. The positive power bus is electrically connected to the load via the positive port, and the negative power bus is electrically connected to the load via the negative port, thereby completing an electrical circuit between the battery 100a and the load.

[0140] Among them, the output end of the second power supply bus 221 refers to the end of the second power supply bus 221 connected to the load, which is used to supply power to the load, etc.; the input end of the second power supply bus 221 is electrically connected to the battery 100a, which is used to obtain electrical energy from the battery 100a.

[0141] The second housing 111 is used to provide a storage space for the battery 100a and can be implemented in the form of a box or the like.

[0142] In this embodiment, a second connector 220 connected to the load is provided on the second shell 111 of the battery system, so as to realize electrical transmission between the battery 100a in the second shell 111 and the load through the second connector 220; and a second switch 112 is provided at the output end of the second power supply bus 221 of the battery system, and the second switch 112 is used to control the on-off of the electrical path between the second power supply bus 221 and the second connector 220. Since the second power supply bus 221 is connected to the load through the second connector 220, the on-off of the electrical path between the second power supply bus 221 of the battery 100a and the load can be controlled by the second switch 220, so that the battery 100a and the load can be electrically disconnected through the second switch 112, thereby realizing the on-off of the electrical path of the battery 100a to the load, at least reducing the high voltage risk of the battery 100a to the outside, and improving the safety of the battery system. Furthermore, the second switch element 112 is disposed at the output end of the second power supply bus 221 , without changing the structure of the original internal components of the battery system such as the battery 100 a and the connection structure between the components, resulting in a simple process and low cost.

[0143] Furthermore, the electrical path inside the battery 100a also forms an electrical circuit through the second power supply bus 221 and the load. Therefore, when the electrical path of the battery 100a to the load is turned on and off, the electrical path inside the battery 100a can also be turned on and off synchronously, which can further improve the safety of the battery system.

[0144] In some embodiments, the second wall portion 231 of the second shell 111 is provided with a second through hole, the second connecting member 220 is installed on the side of the second wall portion 231 of the second shell 111 facing away from the battery 100a, and a portion of the second switch member 112 is provided in the second through hole and connected to the second connecting member 220.

[0145] Installing the second connecting member 220 on the side of the second wall portion 231 away from the battery 100a, that is, on the outside of the second shell 111, can reduce the interference of the second connecting member 220 on the battery module 20; and the connection end routing of the second switch member 112 is realized through the through hole on the second wall portion 231 of the second shell 111, which can simplify the structure and process.

[0146] In some embodiments, the second wall portion 231 of the second shell 111 is provided with a second through hole, the second connecting member 220 is installed on the side of the second wall portion 231 away from the battery 100a, and the output end of the second power supply bus 221 is provided in the second through hole and connected to the second connecting member 220.

[0147] Installing the second connecting member 220 on the side of the second wall portion 231 of the second shell 111 away from the battery module 20, that is, on the outside of the second shell 111, can reduce the interference of the second connecting member 220 on the battery module 20; and the routing of the second power supply bus 221 is realized through the second through hole on the second wall portion 231 of the second shell 111, which can improve the routing stability of the second power supply bus 221 and simplify the structure and process.

[0148] In some embodiments, the second switch is disposed on a side of the second wall portion near the battery, and a portion of the second switch is disposed within the second through-hole. The second switch is connected to the output end of the second power bus and the second connector, respectively. Disposing the second switch on a side of the second wall portion of the second housing near the battery, i.e., on the inner side of the second housing, protects the second switch through the second housing and reduces erroneous operation of the second switch. Furthermore, one connection end of the second switch extends through the second through-hole to the outer side of the second housing and connects to the second connector, allowing the second switch to be disposed between the output end of the second power bus and the second connector, thereby enabling the second switch to control the on / off of the electrical path between the second power bus and the second connector.

[0149] In some embodiments, the second switch is disposed on a side of the second wall facing away from the battery module, and a portion of the second switch is disposed within the second through hole, and the second switch is connected to the output terminal and the second connector, respectively. Disposing the second switch on a side of the second wall of the second housing facing away from the battery, i.e., on the outside of the second housing, can improve the convenience of operating the second switch. When the second switch needs to be operated, there is no need to operate the second housing and its internal components. Furthermore, a connection end of the second switch extends through the second through hole to the outside of the second housing and connects to the second connector, such that the second switch is disposed between the output terminal of the second power bus and the second connector, thereby enabling the second switch to control the on / off of the electrical path between the second power bus and the second connector.

[0150] In some embodiments, a second switch is disposed on a side of the second wall portion proximate to the battery, and the second switch is connected in series to the output end of the second power bus. A portion of the output end of the second power bus is disposed within the second through-hole and connected to the second connector. Positioning the second switch on a side of the second wall portion of the second housing proximate to the battery, i.e., on the inner side of the second housing, protects the second switch through the second housing and reduces erroneous operation of the second switch. Furthermore, the second switch is connected in series to the output end of the second power bus and is connected to the second connector via the output end of the second power bus. The second switch can control the on / off status of the electrical path between the second power bus and the second connector.

[0151] Among them, the structure and principle of the above-mentioned second switch component can refer to the above-mentioned first switch component; the structure and principle of the above-mentioned second connecting component can refer to the above-mentioned first connecting component; the structure and principle of the above-mentioned second shell can refer to the above-mentioned first shell; the structure and principle of the above-mentioned second power supply bus can refer to the above-mentioned first power supply bus; other structures of the battery system of the present application can refer to the above-mentioned battery. The difference between the battery system and the battery is that a battery module is arranged in the first shell of the battery, and a battery is arranged in the second shell of the battery system. The battery may include the first shell or not include the first shell.

[0152] According to some embodiments of the present application, as shown in FIG1 , an electrical device includes the aforementioned battery 100a. This configuration can at least reduce the risk of the battery exposing to external high voltage, thereby improving battery safety. Furthermore, it does not require changes to the structure of the battery module and other existing internal components, nor to the connection structure between the components, resulting in a simple process and low cost.

[0153] In some embodiments, the power-consuming device also includes: a vehicle controller, i.e., controller 200a, a first switch element connected to the vehicle controller, the first switch element obtains a second control signal from the vehicle controller, and controls the first power supply bus to open and close the power supply path of the first connecting element based on the second control signal.

[0154] The control end of the first switch element is electrically connected to the vehicle controller so that the vehicle controller controls the action of the first switch element according to the vehicle conditions, thereby improving the automated monitoring of electrical devices and the automated control of the first switch element, etc., which can improve the control accuracy and real-time performance and improve the safety of the battery 100a.

[0155] A port for connecting to the vehicle controller can also be set on the battery panel.

[0156] To sum up, the embodiments of the present application can control the on-off of the electrical path between the first power supply bus of the battery module and the load through the first switch component, so that the battery module and the load can be electrically disconnected through the first switch component, and the electrical path between the battery module and the load can be turned on and off, which can reduce the high-voltage risk of the battery to the outside and improve the safety of the battery.

[0157] Furthermore, the electrical path inside the battery module also forms an electrical circuit through the first power supply bus and the load. Therefore, when the electrical path of the battery module to the load is turned on and off, the electrical path inside the battery module can also be turned on and off synchronously, which can further improve the safety of the battery.

[0158] Furthermore, the first switch element of the present application is arranged at the output end of the first power supply bus, without changing the structure of the original internal components of the battery such as the battery module and the connection structure between the components, which is simple in process and low in cost.

[0159] In some embodiments, the power-consuming device includes the aforementioned battery system. This configuration can at least reduce the risk of the battery exposing external high voltages, thereby improving battery safety. This configuration also eliminates the need to modify the structure of the battery system's existing internal components and the connections between them, resulting in a simple and cost-effective process. The switch can be controlled by the vehicle controller.

[0160] The second switch element is connected to the vehicle controller, obtains a third control signal from the vehicle controller, and controls the on / off of the power supply path of the second power supply bus to the second connecting element based on the third control signal.

[0161] The control end of the second switch element is electrically connected to the vehicle controller, so that the vehicle controller controls the action of the second switch element according to the vehicle situation, thereby improving the automated monitoring of electrical devices and the automated control of the second switch element, etc., which can improve the control accuracy and real-time performance and improve the safety of the battery system.

[0162] In embodiments of the present application, a second switch element can be used to open and close the electrical path from the battery to the load, thereby reducing the risk of high voltage exposure to the battery system and improving the safety of the battery system. Furthermore, the second switch element of the present application is disposed at the output end of the second power supply bus, eliminating the need to modify the structure of the battery system's existing internal components, such as the battery, or the connections between the components, resulting in a simple process and low cost.

[0163] 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 or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery, characterized in that: include: A battery module connected to a first power supply bus; A first housing, wherein the battery module is disposed in the first housing, the first housing comprises a first wall portion, a first connector for connecting to a load is disposed on the first wall portion, and an output end of the first power supply bus is connected to the first connector; The first switch element is disposed at the output end of the first power supply bus and is configured to control the on-off of the electrical path between the first power supply bus and the first connecting element.

2. The battery according to claim 1, characterized in that The first wall portion is provided with a first through hole, the first connecting member is installed on a side of the first wall portion away from the battery module, and a portion of the first switch element or a portion of the output end of the first power supply bus is provided in the first through hole and connected to the first connecting member.

3. The battery according to claim 2, characterized in that The first switch component is disposed on a side of the first wall portion close to the battery module, and a portion of the first switch component is disposed in the first through hole, and the first switch component is respectively connected to the output end of the first power supply bus and the first connecting component.

4. The battery according to claim 2, characterized in that The first switch component is arranged on a side of the first wall portion away from the battery module, and a portion of the first switch component is arranged in the first through hole, and the first switch component is respectively connected to the output end of the first power supply bus and the first connecting component.

5. The battery according to claim 2, characterized in that The first switch component is arranged on a side of the first wall portion close to the battery module, and the first switch component is connected in series to the output end of the first power supply bus. Part of the output end of the first power supply bus is arranged in the first through hole and connected to the first connecting component.

6. The battery according to any one of claims 2 to 5, characterized in that: The battery also includes: A connecting socket is installed at the first through hole, and the first switch is plugged into the connecting socket.

7. The battery according to claim 6, characterized in that The first connecting member is fixedly arranged on the connecting socket.

8. The battery according to any one of claims 2 to 6, characterized in that: The extending direction of the first connecting member is perpendicular to the axial direction of the first through hole.

9. The battery according to any one of claims 1 to 8, characterized in that: The first wall portion includes a panel, and the first connecting member is disposed on the panel.

10. The battery according to any one of claims 1 to 8, characterized in that: The battery also includes: A panel is arranged on a side of the first wall portion away from the battery module, and the first connecting member is arranged on the panel.

11. The battery according to any one of claims 1 to 10, characterized in that: The first power supply bus includes a high-voltage busbar, and the first connecting member includes a high-voltage connector.

12. The battery according to claim 11, characterized in that The high-voltage busbar includes a high-voltage positive busbar, and the high-voltage connector includes a high-voltage positive output port.

13. The battery according to any one of claims 1 to 12, characterized in that: The first switch element comprises: Relay.

14. The battery according to claim 13, characterized in that The first switch element includes a manual maintenance switch, in which the relay is arranged.

15. The battery according to any one of claims 1 to 14, characterized in that: The battery also includes: A battery management unit is connected to the first switch element, the first switch element obtains a first control signal from the battery management unit, and controls the on / off of an electrical path between the first power supply bus and the first connector based on the first control signal.

16. A battery system, characterized in that: include: a battery connected to a second power supply bus; a second housing, the battery being disposed in the second housing, the second housing comprising a second wall portion, the second wall portion being provided with a second connector for connecting to a load, and the output end of the second power supply bus being connected to the second connector; The second switch element is arranged at the output end of the second power supply bus and is configured to control the on-off of the electrical path between the second power supply bus and the second connecting element.

17. The battery according to claim 16, characterized in that The second wall portion is provided with a second through hole, the second connecting member is installed on a side of the second wall portion away from the battery, and part of the second switch element or part of the output end of the second power supply bus is arranged in the second through hole and connected to the second connecting member.

18. The battery according to claim 17, characterized in that The second switch element is disposed on a side of the second wall portion close to the battery, and a portion of the second switch element is disposed in the second through hole, and the second switch element is respectively connected to the output end of the second power supply bus and the second connecting element.

19. The battery according to claim 17, characterized in that The second switch element is arranged on a side of the second wall portion away from the battery, and part of the second switch element is arranged in the second through hole, and the second switch element is respectively connected to the output end of the second power supply bus and the second connecting element.

20. The battery according to claim 17, characterized in that The second switch element is arranged on a side of the second wall portion close to the battery, and the second switch element is connected in series to the output end of the second power supply bus. Part of the output end of the second power supply bus is arranged in the second through hole and connected to the second connecting member.

21. An electrical device, characterized in that: Comprising the battery according to any one of claims 1 to 15 and / or the battery system according to any one of claims 16 to 20.

22. The electrical device according to claim 21, characterized in that: The electrical device further comprises: A vehicle controller, the first switch element and the second switch element are connected to the vehicle controller, the first switch element obtains a second control signal from the vehicle controller, and controls the on-off of the power supply path of the first power supply bus to the first connecting element based on the second control signal; the second switch element obtains a third control signal from the vehicle controller, and controls the on-off of the power supply path of the second power supply bus to the second connecting element based on the third control signal.

Images