Battery and electric apparatus

Abstract

The present application provides a battery apparatus and an electric apparatus. The battery apparatus comprises a housing, a plurality of battery cells, an electrical component, and a first connecting member, wherein the housing encloses to define an accommodating space and is provided with a through-hole in communication with the accommodating space, the plurality of battery cells are arranged within the accommodating space, a portion of a structure of the electrical component is disposed outside the housing in a first direction, and a portion of the structure extends into the accommodating space by means of the through-hole. The first connecting member electrically connects the plurality of battery cells and the electrical component, and the first connecting member comprises a first portion disposed between the electrical component and the plurality of battery cells. An extension length of the first portion is greater than a spacing between the plurality of battery cells and the electrical component in the first direction. In the embodiments of the present application, a first portion is capable of undergoing deformation to enable disassembly and disengagement of a first connecting member from an electrical component in an external environment, thereby effectively reducing subsequent battery apparatus maintenance costs and maintenance challenges, and helping to improve maintenance efficiency.

Description

Batteries and electrical devices Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and an electrical device. Background Technology

[0002] Battery cells are widely used in electronic devices such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and power tools, etc.

[0003] In the development of battery technology, improving the detachability of battery devices and reducing maintenance costs and difficulties in later maintenance is a research direction in battery technology. Summary of the Invention

[0004] In view of the above problems, this application provides a battery device and an electrical device that can improve the reliability of the battery device.

[0005] On one hand, this application provides a battery device, which includes a housing, multiple battery cells, electrical components, and a first connector. The housing encloses a receiving space and has a through hole communicating with the receiving space. The multiple battery cells are disposed within the receiving space. Part of the electrical components is disposed outside the housing along a first direction, and part of the components extends into the receiving space through the through hole. The first connector electrically connects the multiple battery cells and the electrical components. The first connector includes a first portion disposed between the electrical components and the multiple battery cells. The extension length of the first portion is greater than the distance between the multiple battery cells and the electrical components in the first direction.

[0006] In the above solution, by setting the extension length of the first part to be greater than the distance between multiple battery cells and electrical components in the first direction, the first part can have a redundant length. In this way, when the electrical components are separated from the housing, the first part can deform and move the connection position between the first part and the electrical components to the outside of the housing. This allows for the disassembly and release of the first connector from the electrical components in the external environment without opening the housing. This can effectively reduce the later maintenance cost and difficulty of the battery device and help improve maintenance efficiency.

[0007] In some embodiments, the electrical components include a support plate fixed to the outside of the housing along a first direction, a first output assembly fixed to the side of the support plate opposite to the plurality of battery cells, and a first adapter connected to the first output assembly and disposed on the side of the support plate opposite to the plurality of battery cells. The first adapter is at least partially located within the receiving space and connected to the first connector.

[0008] In the above solution, when the battery device needs to be inspected and maintained or the electrical components malfunction, the first part has a certain redundant length and is allowed to deform to a certain extent. Therefore, the first part will not hinder the movement of the first adapter. Some structures in the first part and the first adapter can be moved together to the outside of the box, thereby realizing the disassembly and separation of the two in the external environment. This helps to reduce maintenance difficulty and cost and improve maintenance efficiency.

[0009] In some embodiments, the support plate covers the through hole.

[0010] In the above solution, the support plate covers the through hole, effectively concealing it. Consequently, during battery device use, most of the enclosure space remains closed to the external environment, thus meeting the battery device's sealing requirements. Simultaneously, the casing and support plate work together to protect the individual battery cells, improving the battery device's impact resistance and meeting its reliability requirements.

[0011] In some embodiments, the battery device further includes a first limiting member disposed between the electrical components and the plurality of battery cells and fixed to the housing, with a first portion connected to the first limiting member.

[0012] In the above solution, the first limiting member is a component structure located within the accommodating space and used to limit the position of the first part. During the use of the battery device, the presence of the first limiting member can reduce the risk of excessive shaking and deformation of the first part due to its redundant length, reduce the probability of the first part contacting other component structures inside the box, reduce the risk of short circuits and other problems in the battery device, and improve the reliability of the battery device.

[0013] In some embodiments, the housing includes a first plate located on one side of a plurality of battery cells along a second direction, the first direction intersecting the second direction, and a first limiting member including a fixing portion connected to the first plate and a protrusion protruding from the fixing portion on the side away from the first plate, the side of the protrusion away from the first plate being recessed inward to form a limiting groove, and a portion of the structure in the first part being located in the limiting groove.

[0014] In the above solution, by providing a limiting groove in the protrusion, the first part can be engaged into the limiting groove, thereby satisfying the limiting requirement of the first limiting member on the first part and improving the reliability of the battery device. Simultaneously, when the electrical components move relative to the housing, the first part can slide relative to the limiting groove or separate from the limiting groove under the action of external pulling forces, thus satisfying the deformation and movement requirements of the first part, reducing maintenance difficulty and cost, and improving maintenance efficiency.

[0015] In some embodiments, the first connector further includes a second portion located within a plurality of battery cells, the second portion being connected to the first portion, and the projection of the first limiting member in a first direction being located outside the projection of the second portion in the first direction.

[0016] In the above scheme, by setting the projection of the first limiting member in the first direction to be outside the projection of the second part in the first direction, the first limiting member and the second part are misaligned in the third direction. In this way, the part of the first part located between the second part and the first limiting member needs to have a certain extension dimension in the third direction. This allows the part of the first part located between the second part and the first limiting member to have a certain redundant length, thereby allowing the first part to deform in a certain direction. This helps to reduce the maintenance difficulty and cost of the battery device and improve maintenance efficiency.

[0017] In some embodiments, the battery device further includes a beam structure disposed between a plurality of battery cells and a first limiting member and fixed to a housing, the beam structure having a notch, a first part and a second part being connected at the notch, and the projection of the first limiting member in a first direction being outside the projection of the notch in the first direction.

[0018] In the above scheme, the beam structure can isolate the area containing multiple battery cells from the area containing electrical components, thereby reducing the risk of direct contact between the two and improving reliability. Simultaneously, the position of the notch in the beam structure determines the connection position between the first and second parts. Based on this, by setting the projection of the first limiting member in the first direction to be outside the projection of the notch in the first direction, the portion of the structure between the second part and the first limiting member in the first part can have a certain redundant length. This allows the first part to deform to a certain extent, helping to reduce the maintenance difficulty and cost of the battery device and improve maintenance efficiency.

[0019] In some embodiments, the first part includes a first sub-part fixed to the first limiting member, and a first bent portion and a second bent portion bent and connected to opposite ends of the first sub-part. The first bent portion connects the second part and the first sub-part, and the projections of the first bent portion and the second bent portion overlap in a first direction.

[0020] In the above solution, the bending method of the first bending part and the second bending part is adjusted so that the projections of the first bending part and the second bending part overlap in the first direction. That is, the first bending part and the second bending part can be bent to the same side relative to the first sub-part. This makes the layout of the first part more compact, which helps to improve the space utilization rate within the accommodating space and reduces the risk of contact interference between the first part and other components inside the box, thereby improving reliability.

[0021] In some embodiments, the first part further includes a second sub-part connected to the electrical component, the second sub-part being bent and connected to the second bending portion, and the projection of the second sub-part in the first direction overlapping the projection of the first limiting member and the second bending portion in the first direction.

[0022] In the above scheme, the second sub-part is a part of the first sub-part used to connect electrical components. The second sub-part is bent and connected to the second bent part. This design allows the part of the first part located between the first limiting member and the electrical components to have a certain redundant length. This allows the first part to deform to a certain extent while keeping the first sub-part and the first limiting member fixed. This reduces the difficulty and cost of battery device maintenance while improving the limiting effect of the first limiting member on the first part.

[0023] In some embodiments, the first connector further includes a second portion located within a plurality of battery cells, the first portion being connected to the second portion and integrally formed.

[0024] In the above scheme, the first part and the second part can be formed together using the same manufacturing process, which helps to reduce the manufacturing difficulty of the first connection part. Furthermore, by bending the first part at certain locations, the first part can include bent structures extending in directions other than the first direction, thus allowing the first part to have a certain redundant length. The overall structure is relatively simple and helps to reduce the maintenance difficulty and cost of the battery device, and improve maintenance efficiency.

[0025] In some embodiments, the battery cell includes a first electrode terminal and a second electrode terminal, and the battery device further includes a second connector. The first connector is electrically connected to the first electrode terminal and an electrical component, and the second connector is electrically connected to the electrode terminal and the electrical component.

[0026] In the above scheme, the battery device can be electrically connected to the first electrode terminal of the battery cell through the first connector, and to the second electrode terminal of the battery cell through the second connector. The first connector and the second connector are respectively electrically connected to different output components, thereby enabling the battery device to effectively output energy and improve the reliability of the battery device.

[0027] In some embodiments, the second connector includes a third portion located along a first direction between a plurality of battery cells and electrical components, the extension length of the third portion being greater than the spacing between the battery cells and electrical components.

[0028] In the above scheme, the structure of the third part was adjusted. By setting the extension length of the third part to be greater than the distance between multiple battery cells and electrical components in the first direction, the third part can have a redundant length. In this way, when the electrical components are separated from the housing, both the first and third parts can deform and move the connection position between the first part and the electrical components to the outside of the housing. This allows the first and second connectors to be disassembled from the electrical components in the external environment without opening the housing. This can effectively reduce the later maintenance cost and difficulty of the battery device and help improve maintenance efficiency.

[0029] In some embodiments, the battery device further includes an insulating member disposed between the first connector and the second connector.

[0030] In the above solution, by providing an insulating component between the first connector and the second connector, the risk of direct contact between the first connector and the second connector due to deformation can be reduced, thereby reducing the risk of short circuit in the battery device and improving the reliability of the battery device.

[0031] In some embodiments, the material of the first part includes metallic copper and is a flexible structure.

[0032] In the above solution, by using copper as the material for the first part, the material cost of the first connector is reduced while meeting the electrical conduction requirements, making it highly practical. Furthermore, to better accommodate deformation, the first part is designed as a flexible structure. Compared to a rigid structure, a flexible structure is more prone to deformation, which helps reduce the maintenance difficulty of the battery device.

[0033] Secondly, embodiments of this application provide an electrical device, which includes the battery device in any of the foregoing embodiments.

[0034] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application.

[0035] Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 is a schematic diagram of the structure of a vehicle provided in some embodiments of this application;

[0038] Figure 2 is a structural diagram of a battery device provided in some embodiments of this application;

[0039] Figure 3 is an exploded structural diagram of a battery device provided in some embodiments of this application;

[0040] Figure 4 is a schematic diagram of the cooperation relationship between the first connector and electrical components in a battery device provided in some embodiments of this application;

[0041] Figure 5 is an enlarged structural diagram of region Q in Figure 4;

[0042] Figure 6 is a schematic diagram of the cooperation relationship between the first connector and electrical components in a battery device provided in some embodiments of this application from another perspective.

[0043] Figure 7 is an enlarged structural diagram of region P in Figure 6;

[0044] Figure 8 is a schematic diagram of the cooperation relationship between the first connector and electrical components in a battery device provided in some embodiments of this application from another perspective.

[0045] Tag name:

[0046] Vehicle 1000; Battery unit 100; Controller 200; Motor 300; Housing 10; Accommodation space 11; Through hole 12; First plate 13; First connector 20; First part 21; First sub-part 211; First bending part 212; Second bending part 213; Second sub-part 214; Second part 22; Electrical component 30; Support plate 31; First output assembly 32; First adapter 33; Second output assembly 34; Battery cell 40; First electrode terminal 41; Second electrode terminal 42; First limiting member 50; Fixing part 51; Protrusion 52; Limiting groove 53; Beam structure 60; Notch 61; Second connector 70; Third part 71; Fourth part 72; Insulating member 80; First direction X; Second direction Y; Third direction Z. Detailed Implementation

[0047] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0049] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

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

[0051] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0052] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0053] Unless otherwise specified, all steps of this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order; for example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0054] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0055] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0056] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0057] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0058] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0059] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0060] The battery apparatus mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via a busbar.

[0061] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells.

[0062] As an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As another example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0063] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cells housed within the housing.

[0064] As an example, the battery cell assembly can be a battery module, which can be housed in a housing by fixing the battery module in the housing.

[0065] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0066] As an example, the enclosure may include a first enclosure and a second enclosure. The first enclosure and the second enclosure are fastened together to form a closed space inside the enclosure to house the individual battery cells. Here, "closed" refers to covering or closing, and can be either sealed or unsealed. The first enclosure may be a top cover or a bottom plate.

[0067] As an example, the enclosure may include a top cover, a frame, and a bottom plate. The top cover and bottom plate are connected to the frame, creating an enclosed space inside the enclosure to house the individual battery cells.

[0068] In some embodiments, the housing may be part of the vehicle's chassis structure. For example, a portion of the housing may be at least a part of the vehicle's floor, or a portion of the housing may be at least a part of the vehicle's crossbeams and longitudinal beams.

[0069] In some embodiments, the battery device may be an energy storage device. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0070] Battery devices typically contain electrical components that control the output and input of electrical energy. To meet usage requirements, these electrical components need to be electrically connected to multiple battery cells. However, when the battery device requires inspection and maintenance, or when electrical components malfunction, the electrical connections between the components and the battery cells are usually made inside the casing. Therefore, the casing must be opened first to disconnect the electrical connections between the components and the battery cells. This results in high maintenance costs and significant maintenance difficulties for the battery device.

[0071] The technical solutions described in the embodiments of this application are applicable to various power devices that use battery devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft.

[0072] The battery devices described in this application are not limited to the electrical devices described above, but for the sake of brevity, the following embodiments are all illustrated using electric vehicles as an example.

[0073] Please refer to Figure 1, which is a simplified schematic diagram of a vehicle 1000 provided in an embodiment of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 can be installed inside the vehicle 1000; specifically, for example, the battery device 100 can be installed at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 100 may also include a controller 200 and a motor 300. The controller 200, for example, is used to control the battery to supply power to the motor 300. The battery device 100 can be used for starting the vehicle 1000, navigation, etc. Of course, the battery device 100 can also be used to drive the vehicle 1000, replacing or partially replacing gasoline or natural gas to provide propulsion for the vehicle 1000.

[0074] The structure of the battery device 100 will now be described in detail with reference to the accompanying drawings.

[0075] Please refer to Figures 2 to 4. This application embodiment provides a battery device 100, which includes a housing 10, multiple battery cells 40, electrical components 30, and a first connector 20. The housing 10 encloses a receiving space 11 and has a through hole 12 communicating with the receiving space 11. The multiple battery cells 40 are disposed within the receiving space 11. A portion of the electrical components 30 is disposed outside the housing 10 along a first direction X, while another portion extends into the receiving space 11 through the through hole 12. The first connector 20 electrically connects the multiple battery cells 40 and the electrical components 30. The first connector 20 includes a first portion 21 disposed between the electrical components 30 and the multiple battery cells 40. The extension length of the first portion 21 is greater than the distance between the multiple battery cells 40 and the electrical components 30 in the first direction X.

[0076] The battery cell 40 is the main component in the battery device 100 used to provide electrical energy, while the housing 10 is the structural component in the battery device 100 used to house and protect the battery cells 40. In the battery device 100, there can be multiple battery cells 40, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells 40 are connected in both series and parallel configurations. Multiple battery cells 40 can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the multiple battery cells 40 is housed within the housing 10. Alternatively, multiple battery cells 40 can first be connected in series, parallel, or a combination thereof to form a battery module, and then multiple battery modules can be connected in series, parallel, or a combination thereof to form a whole, which is then housed within the housing 10.

[0077] Electrical component 30 is a structural component in battery device 100 used for controlling electrical energy output and input, controlling and protecting electrical energy, and monitoring electrical energy. Optionally, electrical component 30 may include a high-voltage controller, which can be used to monitor and manage the operating status of battery device 100, thereby improving the reliability and performance of battery device 100.

[0078] Part of the electrical component 30 is located outside the receiving space 11 of the housing 10 for connection with external devices, while part of the structure is located inside the receiving space 11 of the housing 10 for electrical connection with multiple battery cells 40. Specifically, part of the electrical component 30 is fixedly connected to the outside of the housing 10 along a first direction X, where the first direction X can be any one of the length, width, and height directions of the housing 10. That is, the housing 10 includes multiple wall structures, and the part of the electrical component 30 located outside the housing 10 can be located on one side of any wall structure. The electrical component 30 is fixed to the housing 10. The electrical component 30 can be directly connected to the housing 10, or the two can be relatively fixed together by means of other components. Optionally, the electrical component 30 and the housing 10 can be directly connected and fixed by bolts or welding.

[0079] At least one wall structure on the enclosure 10 is provided with a through hole 12, which is a hole structure that penetrates at least one wall structure of the enclosure 10 and can communicate with the receiving space 11. It is understood that the part of the electrical component 30 located outside the enclosure 10 can be disposed on one side of the wall structure with the through hole 12, and the through hole 12 usually has a large radial dimension, so that part of the structure disposed in the electrical component 30 can pass through the through hole 12 and extend into the receiving space 11.

[0080] The first connector 20 is a component structure located inside the accommodating space 11 for meeting the connection requirements between the electrical component 30 and the multiple battery cells 40. The first connector 20 consists of at least two parts: one part extends into the multiple battery cells 40 and is directly connected to the battery cells 40; the other part is a first part 21, which is sandwiched between the electrical component 30 and the multiple battery cells 40 along a first direction X. The first part 21 is the component structure in the first connector 20 used for direct connection with the electrical component 30.

[0081] Furthermore, the structure of the first part 21 has been adjusted in this embodiment to help reduce the maintenance difficulty of the battery device 100. Specifically, the distance between the multiple battery cells 40 and the electrical components 30 in the first direction X is the necessary length corresponding to the first part 21. In this embodiment, the actual extension length of the first part 21 is set to be greater than the distance between the multiple battery cells 40 and the electrical components 30 in the first direction X, so that the first part 21 can have a certain redundant length. The redundant length mentioned here refers to the length that exceeds the necessary length in actual use.

[0082] The redundant length of the first part 21 can accommodate various possible changes and needs. For example, when the battery device 100 needs inspection and maintenance or when the electrical component 30 malfunctions, the fixed connection between the electrical component 30 and the housing 10 can be disconnected first. Then, the electrical component 30 can be moved away from the housing 10. During the movement, the portion of the electrical component 30 located within the receiving space 11 will pass through the through hole 12 and gradually move outside the housing 10. Since the first part 21 itself has a certain redundant length, it is allowed to deform to a certain extent. Thus, the connection point between the first part 21 and the electrical component 30 can move together with the electrical component 30 until it is outside the housing 10. Afterward, the connection between the first part 21 and the electrical component 30 can be disconnected outside the housing 10, i.e., in the external environment. This design allows for the disassembly and release of the electrical component 30 without opening the housing 10, thereby helping to reduce maintenance difficulty and improve maintenance efficiency.

[0083] It should be noted that the first part 21 can have various extension forms. For example, the first part 21 may include a structure that extends in a zigzag shape, or it may include a structure that extends in a curved shape, as long as at least a part of the structure in the first part 21 can extend in directions other than the first direction X, so that the extension length of the first part 21 is greater than the distance between the plurality of battery cells 40 and the electrical components 30 in the first direction X.

[0084] In summary, in this embodiment, by setting the extension length of the first part 21 to be greater than the distance between the multiple battery cells 40 and the electrical component 30 in the first direction X, the first part 21 can have a redundant length. Thus, when the electrical component 30 is separated from the housing 10, the first part 21 can deform and move the connection position between the first part 21 and the electrical component 30 to outside the housing 10. This allows for the disassembly and release of the first connector 20 and the electrical component 30 in the external environment without opening the housing 10. This effectively reduces the later maintenance cost and difficulty of the battery device 100 and helps improve maintenance efficiency.

[0085] In some embodiments, referring to Figures 4 and 5, the electrical component 30 includes a support plate 31 fixed to the outside of the housing 10 along a first direction X, a first output assembly 32 fixed to the support plate 31 on the side opposite to the plurality of battery cells 40, and a first adapter 33 connected to the first output assembly 32 and disposed on the support plate 31 on the side opposite to the plurality of battery cells 40. The first adapter 33 is at least partially located within the receiving space 11 and connected to the first connector 20.

[0086] The electrical component 30 includes a support plate 31, a first output component 32, and a first adapter 33. The support plate 31 is a plate-shaped structure on the electrical component 30 used to fix and support components such as the first output component 32 and the first adapter 33. The first output component 32 is a component used to realize the transfer of electrical energy between the battery device 100 and external devices. The first adapter 33 is a component structure used to cooperate with the first connector 20 to meet the electrical connection requirements between the first output component 32 and the battery cell 40.

[0087] The support plate 31 is fixed to the outside of the housing 10 along the first direction X. The support plate 31 and the housing 10 can be connected in various ways, including but not limited to bolted connections and welding. The first output component 32 is disposed on the side of the support plate 31 facing away from the plurality of battery cells 40, meaning the first output component 32 is located outside the receiving space 11, allowing the battery device 100 to connect with external devices in the external environment. The first adapter 33 is disposed on the side of the support plate 31 facing the plurality of battery cells 40, meaning at least a portion of the structure of the first adapter 33 is located within the receiving space 11, and the first adapter 33 and the first portion 21 of the first connector 20 can be connected relative to each other within the receiving space 11.

[0088] In this embodiment, when the battery device 100 needs to be inspected and maintained or the electrical component 30 malfunctions, the first part 21 has a certain redundant length, allowing for deformation to a certain extent. Therefore, the first part 21 will not hinder the movement of the first adapter 33. Some structures in the first part 21 and the first adapter 33 can be moved together to the outside of the housing 10, thereby enabling disassembly and release of the two in the external environment. This helps to reduce maintenance difficulty and cost, and improve maintenance efficiency.

[0089] In some embodiments, the support plate 31 covers the through hole 12.

[0090] The projection of the through hole 12 along the first direction X can be completely located within the projection of the support plate 31 along the first direction X. Based on this, in this embodiment, the support plate 31 covers the through hole 12, thereby effectively covering the through hole 12. Consequently, during the use of the battery device 100, most of the space in the accommodating space 11 will not be exposed to the external environment, thus meeting the sealing requirements of the battery device 100. At the same time, the housing 10 and the support plate 31 can also cooperate with each other to protect the battery cells 40, improve the impact resistance of the battery device 100, and meet the reliability requirements of the battery device 100.

[0091] In some embodiments, please refer to Figures 4 to 6, the battery device 100 further includes a first limiting member 50 disposed between the electrical component 30 and the plurality of battery cells 40 and fixed to the housing 10, and a first portion 21 is connected to the first limiting member 50.

[0092] In this embodiment, the first limiting member 50 is a component structure located within the accommodating space 11 and used to limit the position of the first part 21. During the use of the battery device 100, the presence of the first limiting member 50 can reduce the risk of excessive shaking and deformation of the first part 21 due to its redundant length, reduce the probability of the first part 21 contacting other component structures within the housing 10, reduce the risk of short circuits and other problems in the battery device 100, and improve the reliability of the battery device 100.

[0093] It should be noted that the first limiting member 50 can have various structural forms, and the first limiting member 50 and the first part 21 can have various connection methods. Optionally, the first part 21 and the first limiting member 50 can be separately connected, so that when the electrical component 30 moves relative to the housing 10, the first part 21 can detach from the first limiting member 50 under the action of external tension or other factors, and deform and move. Alternatively, the first limiting member 50 can also be movably connected to the first limiting member 50, so that when the electrical component 30 moves relative to the housing 10, the first part 21 can slide relative to the first limiting member 50 under the action of external tension or other factors. Alternatively, the first limiting member 50 can also be connected and fixed to the first part 21 by bolts or welding. In this case, the part of the first part 21 located between the first limiting member 50 and the electrical component 30 needs to have a certain redundant length, which can also meet the deformation and movement requirements of the first part 21.

[0094] Furthermore, the first limiting member 50 is fixed to the housing 10, and the two can be connected in various ways. For example, the first limiting member 50 can be connected to the frame of the housing 10 to achieve fixation between the two, or the first limiting member 50 can also be connected to the top cover or bottom plate of the housing 10 to achieve fixation between the two.

[0095] In some alternative embodiments, the first limiting member 50 includes an insulating material, which can reduce the risk of current being transmitted through the first limiting member 50 to the housing 10, reduce the risk of leakage in the battery device 100, and improve the reliability of the battery device 100.

[0096] In some embodiments, please refer to Figures 4, 7 and 8. The housing 10 includes a first plate 13 located on one side of a plurality of battery cells 40 along a second direction Y. The first direction X intersects with the second direction Y. The first limiting member 50 includes a fixing portion 51 connected to the first plate 13 and a protrusion 52 protruding from the fixing portion 51 on the side away from the first plate 13. The side of the protrusion 52 away from the first plate 13 is recessed inward to form a limiting groove 53. A portion of the structure in the first part 21 is located in the limiting groove 53.

[0097] The first plate 13 can be the top cover of the housing 10 or the bottom plate of the housing 10. Optionally, the first direction X is perpendicular to the second direction Y. The fixing part 51 is the part of the first limiting member 50 that is connected to the first plate 13. The connection between the two is not limited to bolt connection and welding. The protrusion 52 is the part of the first limiting member 50 that is used to connect the first part 21. The protrusion 52 protrudes from the fixing part 51 on the side away from the first plate 13. The fixing part 51 and the protrusion 52 can have various connection methods. Optionally, the protrusion 52 and the fixing part 51 are integrally formed and are formed by injection molding.

[0098] The limiting groove 53 is formed by the inward recess of the protrusion 52 on the side away from the first plate 13. A portion of the structure in the first part 21 is located in the limiting groove 53. The depth of the limiting groove 53 in the second direction Y can be greater than or equal to the size of the first part 21 in the second direction Y, so that the first part 21 can be completely inserted into the limiting groove 53 in the second direction Y. Alternatively, the depth of the limiting groove 53 in the second direction Y can be less than the size of the first part 21 in the second direction Y, so that the first part 21 is only partially inserted into the limiting groove 53 in the second direction Y.

[0099] In this embodiment, by providing a limiting groove 53 in the protrusion 52, the first part 21 can be engaged into the limiting groove 53, thereby satisfying the limiting requirement of the first limiting member 50 on the first part 21 and improving the reliability of the battery device 100. Simultaneously, when the electrical component 30 moves relative to the housing 10, the first part 21 can slide relative to the limiting groove 53 or separate from the limiting groove 53 under the action of external pulling forces, thereby satisfying the deformation and movement requirements of the first part 21, reducing maintenance difficulty and cost, and improving maintenance efficiency.

[0100] In some embodiments, as shown in FIG7, the first connector 20 further includes a second portion 22 located within a plurality of battery cells 40, the second portion 22 being connected to the first portion 21, and the projection of the first limiting member 50 in the first direction X being located outside the projection of the second portion 22 in the first direction X.

[0101] The second part 22 is a component structure in the first connector 20 located in the area where multiple battery cells 40 are located and connected to the battery cells 40. Optionally, the second part 22 may be a plate-shaped structure extending along the first direction X. The battery cells 40 are disposed on one side of the second part 22 along the thickness direction of the plate-shaped structure, and one end of the second part 22 is connected to the first part 21 in its extending direction.

[0102] The first part 21 and the second part 22 can have various material compositions and connection methods. Optionally, both the first part 21 and the second part 22 are plate-like structures and include conductive materials. Further, they are integrally formed structures, and the first part 21 is bent relative to the second part 22.

[0103] Based on this, in order to ensure that the first part 21 has a redundant length to meet the maintenance needs of the battery device 100, the position of the first limiting member 50 relative to the second part 22 is also adjusted in this embodiment. Specifically, the projection of the first limiting member 50 in the first direction X is outside the projection of the second part 22 in the first direction X, that is, the first limiting member 50 and the second part 22 are misaligned in the third direction Z. The third direction Z can be a direction parallel to the second direction Y, or it can be a direction intersecting the second direction Y, as long as the third direction Z can intersect the first direction X. Optionally, the first direction X, the second direction Y, and the third direction Z are arranged perpendicularly to each other.

[0104] Based on the above, it can be seen that since the first limiting member 50 is used to limit the first part 21, in order to meet the limiting requirements, the end of the first part 21 connected to the second part 22 needs to first extend to the first limiting member 50, and then extend from the first limiting member 50 to the electrical component 30. Furthermore, since the first limiting member 50 and the second part 22 are misaligned in the third direction Z, in the extension path from the first part 21 to the first limiting member 50, the first part 21 cannot directly extend along the first direction X to the first limiting member 50, but needs to have a certain extension dimension in the third direction Z. This extension dimension is the redundant length of the first part 21.

[0105] It should be noted that the part of the structure located between the first limiting member 50 and the electrical component 30 in the first part 21 can have a variety of extension methods. For example, the part of the structure can only extend along the first direction X, so that the part of the structure does not have redundant length; or the part of the structure can also have a certain extension dimension in other directions besides the first direction X, so that the part of the structure can also have a certain redundant length.

[0106] In summary, in this embodiment, by setting the projection of the first limiting member 50 in the first direction X to be outside the projection of the second part 22 in the first direction X, the first limiting member 50 and the second part 22 are misaligned in the third direction Z. Thus, the part of the first part 21 located between the second part 22 and the first limiting member 50 needs to have a certain extension dimension in the third direction Z. This allows the part of the first part 21 located between the second part 22 and the first limiting member 50 to have a certain redundant length, thereby allowing the first part 21 to deform in a certain direction. This helps to reduce the maintenance difficulty and cost of the battery device 100 and improve maintenance efficiency.

[0107] In some embodiments, as shown in FIG7, the battery device 100 further includes a beam structure 60 disposed between a plurality of battery cells 40 and a first limiting member 50 and fixed to the housing 10. The beam structure 60 has a notch 61, a first part 21 and a second part 22 are connected at the notch 61, and the projection of the first limiting member 50 in the first direction X is located outside the projection of the notch 61 in the first direction X.

[0108] The beam structure 60 can be disposed on one side of the base plate and protrude relative to the base plate. The beam structure 60 is located between the multiple battery cells 40 and the first limiting member 50, that is, in the interval area between the first limiting member 50 and the multiple battery cells 40. The presence of the beam structure 60 can also protect the multiple battery cells 40 and improve the impact resistance of the battery device 100.

[0109] Optionally, the beam structure 60 may include a beam body and multiple reinforcing ribs connected to the beam body. A buffer cavity may be formed inside the beam body, and the multiple reinforcing ribs are disposed in the buffer cavity to effectively improve the structural strength of the beam structure 60.

[0110] The beam structure 60 has a notch 61 for the second part 22 to pass through, thus connecting the first part 21 and the second part 22 at the notch 61. The notch 61 can take various forms. For example, if the beam structure 60 itself is a continuous structure, the notch 61 can be a through hole 12 penetrating the beam structure 60 along the first direction X. Alternatively, the beam structure 60 can include multiple sub-beams, which are spaced apart from each other to form the notch 61.

[0111] In this embodiment, the beam structure 60 can isolate the area where multiple battery cells 40 are located from the area where electrical components 30 are located, thereby reducing the risk of direct contact between the two and improving reliability. Simultaneously, the position of the notch 61 on the beam structure 60 determines the connection position between the first part 21 and the second part 22. Based on this, by setting the projection of the first limiting member 50 in the first direction X to be outside the projection of the notch 61 in the first direction X, the portion of the first part 21 located between the second part 22 and the first limiting member 50 can have a certain redundant length. This allows the first part 21 to deform to a certain extent, helping to reduce the maintenance difficulty and cost of the battery device 100 and improve maintenance efficiency.

[0112] In some embodiments, as shown in FIG7, the first part 21 includes a first sub-part 211 fixed to the first limiting member 50, and a first bent part 212 and a second bent part 213 bent and connected to opposite ends of the first sub-part 211. The first bent part 212 connects the second part 22 and the first sub-part 211, and the projections of the first bent part 212 and the second bent part 213 overlap in the first direction X.

[0113] The first sub-part 211 is a portion of the first part 21 that connects to the first limiting member 50. Optionally, the first sub-part 211 can be connected to the first limiting member 50 by a snap-fit ​​connection. The first bent part 212 and the second bent part 213 are portions of the first part 21 that are bent and connected to the opposite ends of the first sub-part 211, and the first bent part 212 is directly connected to the second part 22 to meet the connection requirements between the first part 21 and the second part 22. The first bent part 212, the second bent part 213, and the first sub-part 211 can all be plate-shaped structures.

[0114] The first sub-part 211, the first bent part 212, and the second bent part 213 can have various positional relationships. For example, the first sub-part 211 can be a plate-shaped structure parallel to the support plate 31. In this case, the first bent part 212 and the second bent part 213 are respectively connected to the opposite ends of the first sub-part 211 in the third direction Z, and the first bent part 212 is bent to the side of the first sub-part 211 facing the multiple battery cells 40, and the second bent part 213 is bent to the side of the first sub-part 211 facing the electrical component 30.

[0115] Alternatively, as shown in Figure 7, the first sub-part 211 can be a plate-like structure extending along the first direction X. In this case, the first bending part 212 is connected to one end of the first sub-part 211 facing the plurality of battery cells 40 in the first direction X, and the second bending part 213 is connected to one end of the first sub-part 211 facing the electrical component 30 in the first direction X. Furthermore, both the first bending part 212 and the second bending part 213 can include a plate-like structure parallel to the support plate 31.

[0116] It should be noted that the first bend 212 can be directly connected to the second part 22, that is, the two ends of the first bend 212 can be connected to the first sub-part 211 and the second part 22 respectively. In other embodiments, the first bend 212 and the second part 22 may not be directly connected, and other bending structures may exist between them, which helps to further increase the redundant length of the first connector 20. Similarly, the second bend 213 can also be directly connected to the electrical component 30, or other bending structures may be provided between them.

[0117] Furthermore, the bending method of the first bending portion 212 and the second bending portion 213 in this embodiment is adjusted so that the projections of the first bending portion 212 and the second bending portion 213 on the first direction X overlap. That is, the first bending portion 212 and the second bending portion 213 can be bent to the same side relative to the first sub-part 211, thereby making the layout of the first part 21 more compact, which helps to improve the space utilization rate within the accommodating space 11 and reduces the risk of contact interference between the first part 21 and other components inside the housing 10, thus improving reliability.

[0118] In some alternative embodiments, the projection of the first sub-part 211 in the first direction X is located within the projections of the first bent part 212 and the second bent part 213 in the first direction X, which helps to further improve the layout compactness of the first part 21 and improve the space utilization rate within the accommodating space 11.

[0119] In some embodiments, the first portion 21 further includes a second sub-portion 214 connected to the electrical component 30. The second sub-portion 214 is bent and connected to the second bending portion 213, and the projection of the second sub-portion 214 in the first direction X overlaps with the projections of the first limiting member 50 and the second bending portion 213 in the first direction X.

[0120] In this embodiment, the second sub-part 214 is a portion of the first sub-part 211 used to connect the electrical component 30. The second sub-part 214 is bent and connected to the second bent portion 213. This design allows the portion of the first part 21 located between the first limiting member 50 and the electrical component 30 to have a certain redundant length. This allows the first part 21 to deform to a certain extent while keeping the first sub-part 211 and the first limiting member 50 fixed. This reduces the maintenance difficulty and cost of the battery device 100 while improving the limiting effect of the first limiting member 50 on the first part 21.

[0121] Furthermore, in this embodiment, the projection of the second sub-part 214 in the first direction X overlaps with the projections of the first limiting member 50 and the second bent part 213 in the first direction X. In conjunction with the accompanying drawings, this helps to reduce the overall size of the first part 21 in the third direction Z, and makes the first limiting member 50 correspondingly located within the area where the first part 21 is located, making the overall layout of the first part 21 and the first limiting member 50 more compact and improving the space utilization rate inside the accommodating space 11.

[0122] In some alternative embodiments, the first bending portion 212, the first sub-portion 211, the second bending portion 213, and the second sub-portion 214 are integrally formed structures and are bent and connected in sequence.

[0123] In some embodiments, the first connector 20 further includes a second portion 22 located within a plurality of battery cells 40, wherein the first portion 21 is connected to the second portion 22 and is integrally formed.

[0124] In this embodiment, the first part 21 and the second part 22 can be formed together using the same manufacturing process, which helps to reduce the manufacturing difficulty of the first connection portion. Furthermore, by bending the first part 21 at certain locations, the first part 21 can include a bent structure extending in directions other than the first direction X, thereby allowing the first part 21 to have a certain redundant length. The overall structure is relatively simple, and this helps to reduce the maintenance difficulty and cost of the battery device 100, and improve maintenance efficiency.

[0125] In some embodiments, as shown in Figures 6 and 7, the battery cell 40 includes a first electrode terminal 41 and a second electrode terminal 42, and the battery device 100 further includes a second connector 70. The first connector 20 is electrically connected to the first electrode terminal 41 and the electrical component 30, and the second connector 70 is electrically connected to the electrode terminal and the electrical component 30.

[0126] Electrode terminals are components on a battery cell 40 used to realize electrical energy output and input. Each battery cell 40 includes a first electrode terminal 41 and a second electrode terminal 42, one of which is the positive terminal and the other is the negative terminal. A first connector 20 and a second connector 70 are both electrically connected to multiple battery cells 40. Specifically, the first connector 20 can be electrically connected to the first electrode terminal 41 of the multiple battery cells 40, and the second connector 70 can be electrically connected to the second electrode terminal 42 of the multiple battery cells 40. In other words, the total positive terminal of the multiple battery cells 40 is electrically connected to one of the first connector 20 and the second connector 70, and the total negative terminal of the multiple battery cells 40 is electrically connected to the other of the first connector 20 and the second connector 70.

[0127] In some alternative embodiments, the electrical component 30 includes a first output component 32 and a second output component 34. A first connector 20 is used to realize the electrical connection between the first output component 32 and the first electrode terminal 41 of the plurality of battery cells 40. A second connector 70 is used to realize the electrical connection between the second output component 34 and the second electrode terminal 42 of the plurality of battery cells 40. The first output component 32 and the second output component 34 can be connected to the positive and negative terminals of an external device, respectively, so that a current loop can be formed between the battery device 100 and the external device.

[0128] In this embodiment, the battery device 100 can be electrically connected to the first electrode terminal 41 of the battery cell 40 via the first connector 20, and to the second electrode terminal 42 of the battery cell 40 via the second connector 70. The first connector 20 and the second connector 70 are respectively electrically connected to different output components, thereby enabling the battery device 100 to effectively output energy and improve the reliability of the battery device 100.

[0129] In some embodiments, as shown in FIG7, the second connector 70 includes a third portion 71 located along a first direction X between a plurality of battery cells 40 and electrical components 30, the extension length of the third portion 71 being greater than the spacing between the battery cells 40 and electrical components 30.

[0130] Both the first connector 20 and the second connector 70 are component structures located inside the accommodating space 11 to meet the connection requirements between the electrical component 30 and the multiple battery cells 40. Similar to the first connector 20, the second connector 70 also consists of at least two parts. For example, the second connector 70 includes a third part 71 and a fourth part 72. The fourth part 72 extends into the multiple battery cells 40 and is directly connected to the battery cells 40. The third part 71 is sandwiched between the electrical component 30 and the multiple battery cells 40 along the first direction X. The third part 71 is the component structure in the second connector 70 used for direct connection with the electrical component 30.

[0131] Furthermore, similar to the first part 21, the structure of the third part 71 in this embodiment is also adjusted. By setting the extension length of the third part 71 to be greater than the distance between the multiple battery cells 40 and the electrical component 30 in the first direction X, the third part 71 can have a redundant length. In this way, when the electrical component 30 is separated from the housing 10, both the first part 21 and the third part 71 can deform and move the connection position between the first part 21 and the electrical component 30 to outside the housing 10. This allows the first connector 20 and the second connector 70 to be disassembled from the electrical component 30 in the external environment without opening the housing 10. This can effectively reduce the later maintenance cost and maintenance difficulty of the battery device 100 and help improve maintenance efficiency.

[0132] In some embodiments, as shown in FIG7, the battery device 100 further includes an insulating member 80 disposed between the first connector 20 and the second connector 70.

[0133] The insulating member 80 is a component structure located between the first connector 20 and the second connector 70 and including insulating material. Optionally, the insulating member 80 is at least partially located within the area where the plurality of battery cells 40 are located, and the insulating member 80 is at least partially sandwiched between the second part 22 and the fourth part 72.

[0134] Based on the foregoing, when it is necessary to inspect and maintain the battery device 100 or when the electrical component 30 malfunctions, the connection between the housing 10 and the electrical component 30 can be disconnected first, and then the portion of the electrical component 30 located within the receiving space 11 can be gradually moved outside the housing 10. During the movement of the electrical component 30, both the first connector 20 and the second connector 70 will deform.

[0135] Based on this, the present application embodiment provides an insulating member 80 between the first connector 20 and the second connector 70, thereby reducing the risk of direct contact between the first connector 20 and the second connector 70 due to deformation, thereby reducing the risk of short circuit in the battery device 100 and improving the reliability of the battery device 100.

[0136] In some embodiments, the material of the first part 21 includes metallic copper and is a flexible structure.

[0137] In this embodiment, by making the material of the first part 21 include metallic copper, the material cost of the first connector 20 is reduced while meeting the electrical conduction requirements, thus demonstrating strong practicality. Furthermore, to enable the first part 21 to better meet deformation requirements, it is also configured as a flexible structure. Compared to a rigid structure, a flexible structure is easier to deform, thereby helping to reduce the maintenance difficulty of the battery device 100.

[0138] In some alternative embodiments, the first part 21 may include multiple copper foil sheets stacked together. Through a special welding process, adjacent copper foil sheets can be fixedly connected to each other, and the first part 21 formed in this way can be a flexible structure that can meet the deformation requirements.

[0139] Secondly, embodiments of this application provide an electrical device, which includes the battery device 100 in any of the foregoing embodiments. The electrical device provided in this application has the technical effects of the battery device 100 in any of the foregoing embodiments, and the explanations of the same or corresponding structures and terms as in the foregoing embodiments will not be repeated here.

[0140] According to some embodiments of this application, please refer to Figures 2 to 8. The battery device 100 includes a housing 10, a plurality of battery cells 40, an electrical component 30, a first connector 20, a second connector 70, a first limiting member 50, a beam structure 60, and an insulating member 80. The housing 10 encloses a receiving space 11 and is provided with a through hole 12 communicating with the receiving space 11. The plurality of battery cells 40 are disposed in the receiving space 11. The electrical component 30 includes a support plate 31 fixed to the outside of the housing 10 along a first direction X and covering the through hole 12, a first output component 32 fixed to the support plate 31 on the side away from the plurality of battery cells 40, and a first adapter 33 connected to the first output component 32 and disposed on the support plate 31 on the side away from the plurality of battery cells 40. The first adapter 33 is connected to the first connector 20.

[0141] The first connector 20 includes a first portion 21 disposed between the electrical component 30 and a plurality of battery cells 40, and a second portion 22 located within the plurality of battery cells 40. The first portion 21 includes a first sub-part 211 fixed to a first limiting member 50, a first bent portion 212 and a second bent portion 213 bent and connected to opposite ends of the first sub-part 211, and a second sub-part 214 bent and connected to the second bent portion 213. The first bent portion 212 connects the second portion 22 and the first sub-part 211, and the second sub-part 214 connects to the electrical component 30. The projections of the first bent portion 212 and the second bent portion 213 in the first direction X overlap, and the projection of the second sub-part 214 in the first direction X overlaps with the projections of the first limiting member 50 and the second bent portion 213 in the first direction X. The first portion 21 is made of copper and has a flexible structure.

[0142] The first limiting member 50 is disposed between the electrical component 30 and the plurality of battery cells 40. The housing 10 includes a first plate 13 located on one side of the plurality of battery cells 40 in the second direction Y, where the first direction X intersects the second direction Y. The first limiting member 50 includes a fixing part 51 connected to the first plate 13 and a protrusion 52 protruding from the fixing part 51 on the side away from the first plate 13. The side of the protrusion 52 away from the first plate 13 is recessed inward to form a limiting groove 53, and a portion of the structure in the first part 21 is located within the limiting groove 53.

[0143] The projection of the first limiting member 50 in the first direction X is outside the projection of the second part 22 in the first direction X. The beam structure 60 is disposed between the multiple electric field units and the first limiting member 50 and has a notch 61. The first part 21 and the second part 22 are connected at the notch 61. The projection of the first limiting member 50 in the first direction X is outside the projection of the notch 61 in the first direction X.

[0144] The battery cell 40 includes a first electrode terminal 41 and a second electrode terminal 42. The battery device 100 also includes a second connector 70. The first connector 20 electrically connects the first electrode terminal 41 and the electrical component 30, and the second connector 70 electrically connects the second electrode terminal 42 and the electrical component 30. The second connector 70 includes a third portion 71 located along a first direction X between the plurality of battery cells 40 and the electrical component 30. The extension length of the third portion 71 is greater than the spacing between the plurality of battery cells 40 and the electrical component 30. An insulating member 80 is disposed between the first connector 20 and the second connector 70.

[0145] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, comprising: The box body encloses and forms a receiving space, and is provided with a through hole connecting the receiving space; Multiple battery cells are disposed within the accommodating space; An electrical component, wherein a portion of the electrical component is disposed outside the housing along a first direction, and a portion of the electrical component extends into the receiving space through the through hole; A first connector electrically connects the plurality of battery cells and the electrical component, the first connector including a first portion disposed between the electrical component and the plurality of battery cells; The extension length of the first part is greater than the distance between the plurality of battery cells and the electrical components in the first direction.

2. The battery device according to claim 1, wherein, The electrical components include a support plate fixed to the outside of the housing along the first direction, a first output component fixed to the support plate on the side away from the plurality of battery cells, and a first adapter connected to the first output component and disposed on the support plate on the side away from the plurality of battery cells, the first adapter being connected to the first connector.

3. The battery device according to claim 2, wherein, The support plate covers the through hole.

4. The battery device according to any one of claims 1 to 3, further comprising a first limiting member disposed between the electrical component and the plurality of battery cells and fixed to the housing, wherein the first portion is connected to the first limiting member.

5. The battery device according to claim 4, wherein, The housing includes a first plate located on one side of the plurality of battery cells along a second direction, the first direction intersecting the second direction; The first limiting member includes a fixing part connected to the first plate and a protrusion protruding from the fixing part on the side away from the first plate. The side of the protrusion away from the first plate is recessed inward to form a limiting groove, and a portion of the structure in the first part is located in the limiting groove.

6. The battery device according to claim 4 or 5, wherein, The first connector further includes a second portion located within the plurality of battery cells, the second portion being connected to the first portion; Wherein, the projection of the first limiting member in the first direction is outside the projection of the second part in the first direction.

7. The battery device according to claim 6 further includes a beam structure disposed between the plurality of battery cells and the first limiting member and fixed to the housing, the beam structure having a notch, and the first part and the second part being connected at the notch; The projection of the first limiting member in the first direction is outside the projection of the notch in the first direction.

8. The battery device according to claim 6 or 7, wherein, The first part includes a first sub-part fixed to the first limiting member, and a first bent part and a second bent part bent and connected to opposite ends of the first sub-part, wherein the first bent part connects the second part and the first sub-part; The projections of the first bend and the second bend in the first direction overlap.

9. The battery device according to claim 8, wherein, The first part further includes a second sub-part connected to the electrical component. The second sub-part is bent and connected to the second bending part, and the projection of the second sub-part in the first direction overlaps with the projection of the first limiting member and the second bending part in the first direction.

10. The battery device according to any one of claims 1 to 9, wherein, The first connector further includes a second portion located within the plurality of battery cells, the first portion being connected to the second portion and integrally formed.

11. The battery device according to any one of claims 1 to 10, wherein, The battery cell includes a first electrode terminal and a second electrode terminal. The battery device also includes a second connector. The first connector is electrically connected to the first electrode terminal and the electrical component, and the second connector is electrically connected to the second electrode terminal and the electrical component.

12. The battery device according to claim 11, wherein, The second connector includes a third portion located along the first direction between the plurality of battery cells and the electrical component, the extension length of the third portion being greater than the spacing between the plurality of battery cells and the electrical component.

13. The battery device according to claim 11 or 12, further comprising an insulating member disposed between the first connector and the second connector.

14. The battery device according to any one of claims 1 to 13, wherein, The material of the first part includes metallic copper and is a flexible structure.

15. An electrical device comprising a battery device as described in any one of claims 1 to 14.

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