Battery device and electric device

Abstract

The utility model relates to a battery device and a power utilization device, the battery device comprises a battery single body assembly, an output pole piece and an output pole protection structure, the output pole protection structure comprises a mounting seat, the mounting seat comprises a mounting wall, and the mounting wall is provided with a connecting part; the protective cover is movably connected with the mounting base, and the protective cover can be switched between an opening position and a closing position relative to the mounting base; when the protective cover is in the closed position, at least part of the protective cover is opposite to the mounting wall; when the protective cover is in the open position, the projection of the connecting part in the first direction is located outside the projection of the protective cover in the first direction. One of the protective cover and the mounting seat is provided with a first connecting structure, and the other one is provided with a second connecting structure; the first connecting structure is rotationally connected with the second connecting structure, so that the protective cover can rotate relative to the mounting base around the first direction. According to the technical scheme, the convenience of locking operation of the output pole piece and the connecting part can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to battery devices and power-consuming devices. Background Technology

[0002] The battery device includes a battery cell assembly, an output electrode switch, and an output electrode protection structure. The battery cell assembly comprises multiple electrically connected battery cells. The output electrode switch is electrically connected to the battery cell assembly, enabling the battery cell assembly to output or input electrical energy through the output electrode switch. The output electrode protection structure includes a mounting base and a protective cover. The mounting base has a connecting part for connecting to the output electrode switch. The protective cover connects to the mounting base and provides insulation protection for the output electrode switch. Connecting the output electrode switch to the connecting part requires a locking tool.

[0003] With the development of battery technology, the integration and production scale of battery devices continue to increase, placing higher demands on the assembly efficiency of their internal structures. Therefore, it is necessary to optimize the structure of battery devices to improve the ease of operation when electrically connecting the output electrode and the connector. Utility Model Content

[0004] In view of the inconvenience of operation when electrically connecting the output electrode plate and the connecting part in the related technology, this application provides a battery device and an electrical device that can effectively improve the convenience of locking the output electrode plate and the connecting part.

[0005] In a first aspect, this application provides a battery device, the battery device comprising:

[0006] A battery cell assembly, which includes multiple interconnected battery cells;

[0007] The output electrode plate is electrically connected to the battery cell assembly.

[0008] Output protection structure, the output protection structure includes:

[0009] The mounting base includes a mounting wall, and the mounting wall is provided with a connecting part for connecting to the output electrode plate;

[0010] The protective cover is movably connected to the mounting base, and the protective cover can switch between an open position and a closed position relative to the mounting base.

[0011] When the protective cover is in the closed position, at least a portion of the protective cover is disposed opposite to the mounting wall so that at least a portion of the protective cover covers the connecting portion along the first direction; when the protective cover is in the open position, the projection of the protective cover along the first direction does not overlap with the projection of the connecting portion along the first direction, and the projection of the connecting portion along the first direction is located outside the projection of the protective cover along the first direction.

[0012] Of the protective cover and the mounting base, one has a first connecting structure and the other has a second connecting structure; the first connecting structure and the second connecting structure are rotatably connected, so that the protective cover can rotate relative to the mounting base around a first direction.

[0013] In one embodiment, the mounting base is provided with a locking structure, and the protective cover is provided with a mating structure;

[0014] When the protective cover is in the closed position, the locking mechanism and the mating mechanism are locked together; when the locking mechanism and the mating mechanism are unlocked, the protective cover is movably connected to the mounting base, so that the protective cover can switch between the open and closed positions.

[0015] In one embodiment, the first connecting structure and the second connecting structure are interference-fitted.

[0016] In one embodiment, the second connecting structure includes a first groove and a second groove, the first groove extending in a second direction, and one end of the first groove in the second direction communicating with the second groove;

[0017] The first connecting structure includes a rod and a head, one end of the rod being connected to the head; the head is engaged with a second groove so that the first connecting structure can rotate relative to the second connecting structure about a first direction, and the rod can rotate into or out of the first groove.

[0018] The first groove penetrates the third-direction side surface of the mounting base, and the end of the rod away from the head is connected to the protective cover; or, the first groove penetrates the third-direction side surface of the protective cover, and the end of the rod away from the head is connected to the mounting base.

[0019] The third direction, the second direction, and the first direction intersect each other.

[0020] In one embodiment, the second groove and the first groove together penetrate the surface of the mounting base or protective cover on the same side in a third direction.

[0021] In one embodiment, the second connecting structure further includes a guide groove, the guide groove extending in a third direction, and the guide groove is disposed on the groove wall of the second groove on one side along the first direction, and penetrates the groove wall along the first direction.

[0022] The guide groove, the second groove, and the first groove all penetrate the surface of the mounting base or protective cover on the same side in a third direction;

[0023] The guide groove is used to allow the rod to enter in a third direction.

[0024] In one embodiment, the output electrode protection structure is located on one side of a plurality of battery cells along a second direction, which intersects with the first direction;

[0025] The mounting base includes a first support portion connected to a mounting wall. The first support portion is located at one end of the mounting wall along a second direction near the battery cell, and on one side of the mounting wall along a third direction, which intersects the second direction and the first direction.

[0026] In one embodiment, the mounting base includes a second support portion connected to the mounting wall, the second support portion being located at one end of the mounting wall in a third direction away from the first support portion;

[0027] The second support is provided with a first locking structure, and the protective cover is provided with a first mating structure. The first locking structure and the first mating structure lock or unlock each other.

[0028] In one embodiment, the output electrode protection structure is located on one side of a plurality of battery cells along a second direction, which intersects with the first direction;

[0029] The protective cover includes a first protective wall and a second protective wall connected to the first protective wall. When the protective cover is in the closed position, the first protective wall covers the output electrode along a first direction. When the protective cover is in the closed position, the second protective wall is located on the side of the first protective wall away from the battery cell along a second direction, so that the second protective wall covers the output electrode along the second direction.

[0030] In one embodiment, a second locking structure is provided at one end of the mounting wall away from the battery cell along the second direction, and a second mating structure is provided on the second protective wall. The second locking structure and the second mating structure lock or unlock each other.

[0031] In one embodiment, the output electrode protection structure is located on one side of a plurality of battery cells along a second direction, which intersects with the first direction;

[0032] The protective cover includes a first protective wall and a third protective wall connected to the first protective wall. When the protective cover is in the closed position, the first protective wall covers the output electrode along a first direction. When the protective cover is in the closed position, the third protective wall is located on one side of the first protective wall along a third direction, so that the third protective wall covers the output electrode along the third direction. The third direction intersects with the second direction and the first direction.

[0033] In one embodiment, the third protective wall includes an abutment wall and a weakening wall. One end of the weakening wall along the first direction is connected to the first protective wall, and the other end is connected to the abutment wall. The end of the abutment wall away from the weakening wall is used to abut against the output electrode plate connected to the connecting portion.

[0034] The thickness of the weakening wall is less than the thickness of the abutting wall, so that the deformation capacity of the weakening wall is stronger than that of the abutting wall.

[0035] In one embodiment, the mounting wall is provided with a third locking structure, which is located on one side of the mounting wall along a third direction;

[0036] The third protective wall is equipped with a third mating structure, and the third locking structure locks or unlocks with the third mating structure.

[0037] Secondly, this application provides an electrical device including a battery device as described above, the battery device being used to provide electrical energy to the electrical device.

[0038] The aforementioned battery device and electrical device include a battery cell assembly, an output electrode bar, and an output electrode protection structure. The protective cover of the output electrode protection structure is movably connected to a mounting base, allowing the cover to switch between an open and closed position relative to the mounting base. In the closed position, at least a portion of the cover is positioned opposite the mounting wall, covering the connection portion along a first direction to provide protection. When an electrical connection between the output electrode bar and the connection portion is required, the cover moves to the open position relative to the mounting base. In the open position, the projection of the cover along the first direction does not overlap with the projection of the connection portion along the first direction. This ensures that the cover does not obstruct the connection portion in the first direction. Furthermore, since the projection of the connection portion along the first direction is outside the projection of the cover along the first direction, the side of the connection portion away from the cover is not obstructed. This provides ample operating space for the locking operation of the output electrode bar and the connection portion, improving the convenience of the locking operation.

[0039] 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. Attached Figure Description

[0040] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0041] Figure 1 This is a schematic diagram of the structure of a vehicle according to some embodiments of this application.

[0042] Figure 2 This is an exploded view of a battery device according to some embodiments of this application.

[0043] Figure 3 for Figure 2 Exploded view of a single battery cell.

[0044] Figure 4This is a schematic diagram of the output electrode protection structure of the protective cover in the closed position according to some embodiments of this application.

[0045] Figure 5 for Figure 4 A schematic diagram of the output electrode protection structure when the middle protective cover is in the open position.

[0046] Figure 6 for Figure 4 A schematic diagram of the structure of the protective cover.

[0047] Figure 7 for Figure 4 A magnified view of a portion of region A in the middle.

[0048] Figure 8 for Figure 4 A schematic diagram of the output pole protection structure along one side of the second direction.

[0049] The reference numerals in the detailed embodiments are as follows:

[0050] ZZ' - First direction; YY' - Second direction; XX' - Third direction;

[0051] 1-Vehicle; 10-Battery unit; 20-Controller; 30-Motor;

[0052] 100 - Battery box; 110 - First box; 120 - Second box;

[0053] 200 - Cell battery; 210 - Housing; 220 - End cap; 221 - Electrode terminal; 230 - Electrode assembly;

[0054] 300-Output pole protection structure;

[0055] 310 - Mounting base; 311 - Connecting part; 312 - Mounting wall; 313 - First support part; 314 - Second support part;

[0056] 320 - Protective cover; 321 - First protective wall; 322 - Second protective wall; 323 - Third protective wall; 3231 - Abutment wall; 3232 - Weakening wall; 324 - Fourth protective wall;

[0057] 330 - First connecting structure; 331 - Rod; 332 - Head;

[0058] 340 - Second connecting structure; 341 - First groove; 342 - Second groove; 343 - Guide groove;

[0059] 350 - Locking structure; 351 - First locking structure; 352 - Second locking structure; 353 - Third locking structure;

[0060] 361 - First mating structure; 362 - Second mating structure; 363 - Third mating structure. Detailed Implementation

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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).

[0067] 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.

[0068] 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.

[0069] Currently, judging from market trends, the application of batteries is becoming increasingly widespread. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace, among other fields.

[0070] The battery device 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 one or more battery cells, and when there are multiple battery cells, the multiple battery cells are connected in series, parallel, or mixed connection via a busbar.

[0071] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells into a single module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0072] In some embodiments, the battery device may be a battery pack, which includes a housing and one or more individual battery cell assemblies housed within the housing.

[0073] 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.

[0074] As an example, battery cell assemblies can also be housed in a housing by directly fixing multiple battery cells to the housing.

[0075] 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.

[0076] 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.

[0077] As an example, the housing can be part of the vehicle's chassis structure. For instance, the housing's roof can be at least part of the vehicle's floor, or the housing's frame can be at least part of the vehicle's crossbeams and longitudinal beams.

[0078] The technical solutions described in this application are applicable to various battery-powered devices, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, power tools, vehicles, ships, and spacecraft. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft.

[0079] The battery device includes multiple battery cell assemblies, an output electrode bar, and an output electrode protection structure. Each battery cell assembly comprises multiple electrically connected battery cells. The output electrode bar is electrically connected to the battery cell assembly, enabling the battery cell assembly to output or input electrical energy through the output electrode bar. The output electrode protection structure includes a mounting base and a protective cover. The mounting base has a connecting part for connecting to the output electrode bar. Specifically, the output electrode bar can be connected to other structures within the battery device. For example, the output electrode bar can be connected to a copper bar within the battery device, which in turn connects to a high-voltage control component within the battery device. Alternatively, the copper bar can be connected to a connector within the battery device, allowing the battery cell assembly to be electrically connected to an external device via the connector. The protective cover, connected to the mounting base, provides insulation protection for the output electrode bar.

[0080] When electrically connecting the output electrode plate to the copper bar and the connecting part, the protective cover needs to be opened, and a socket tool is used to lock the output electrode plate, copper bar, and connecting part. Conventional protective covers and mounting bases are often connected by a pivot joint. The rotation angle of the protective cover relative to the mounting base is limited, resulting in insufficient opening of the protective cover and insufficient operating space when locking with a socket tool, thus causing inconvenience. Especially when the protective cover is rotated upwards relative to the mounting base to open, it obstructs the upper area of ​​the connecting part, further reducing the operating space of the socket tool.

[0081] Based on the above considerations, in order to improve the ease of operation during electrical connection, this application designs a battery device in which the protective cover 320 is movably connected to the mounting base 310, so that the protective cover 320 can switch between an open position and a closed position relative to the mounting base 310. When the protective cover 320 is in the open position, the projection of the protective cover 320 along the first direction ZZ' does not overlap with the projection of the connecting part 311 along the first direction ZZ'. In this way, the protective cover 320 does not obstruct the connecting part 311 in the first direction. At the same time, since the projection of the connecting part 311 along the first direction ZZ' is located outside the projection of the protective cover 320 along the first direction ZZ', the side of the connecting part 311 away from the protective cover 320 is not obstructed by the protective cover 320. This provides sufficient operating space for the locking operation of the output electrode and the connecting part 311, improving the convenience of the locking operation of the output electrode and the connecting part 311.

[0082] For ease of explanation, the following embodiments use a vehicle as an example to describe in detail the structure of the electrical device, battery device, and battery cell of this application.

[0083] Please refer to Figure 1 , Figure 1 The diagram illustrates the structure of a vehicle 1 according to some embodiments of this application. Vehicle 1 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 10 is installed inside vehicle 1, and the battery device 10 can be located at the bottom, front, or rear of vehicle 1. The battery device 10 can be used to power vehicle 1; for example, the battery device 10 can serve as the operating power source for vehicle 1. Vehicle 1 may also include a controller 20 and a motor 30. The controller 20 controls the battery device 10 to supply power to the motor 30, for example, to meet the power needs of vehicle 1 during starting, navigation, and driving.

[0084] In some embodiments of this application, the battery device 10 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0085] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery provided in some embodiments of this application. The battery device 10 includes a battery case 100 and battery cells 200. The battery cells 200 are housed within the battery case 100. The battery case 100 provides a space for the battery cells 200, and the battery case can have various structures. In some embodiments, the battery case 100 may include a second housing 120 and a first housing 110, which overlap each other, and together define a cavity for accommodating the battery cells 200. The first housing 110 may be a hollow structure with one open end, and the second housing 120 may be a plate-like structure, covering the open side of the first housing 110 so that the second housing 120 and the first housing 110 together define the cavity; alternatively, both the second housing 120 and the first housing 110 may be hollow structures with one open side, with the open side of the second housing 120 overlapping the open side of the first housing 110. Of course, the battery box 100 formed by the second box 120 and the first box 110 can be of various shapes, such as cylinder, cuboid, etc.

[0086] In the battery device 10, there can be multiple battery cells 200. These multiple battery cells 200 can be connected in series, parallel, or in a mixed configuration to form a battery cell assembly. A mixed configuration means that multiple battery cells 200 are connected in both series and parallel connections. Multiple battery cells 200 can be directly connected in series, parallel, or in a mixed configuration, and then the assembly of these multiple battery cells 200 is housed within the battery box 100. Alternatively, the battery device 10 can also consist of multiple battery cells 200 first connected in series, parallel, or in a mixed configuration to form battery modules, and then these battery modules are connected in series, parallel, or in a mixed configuration to form a whole, which is then housed within the battery box 100. The battery device may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 200.

[0087] In some embodiments, a battery device may also refer to a battery module consisting of battery cell assemblies and elements that limit the battery cell assemblies, wherein the limiting elements may be end plates, cable ties, or combinations thereof.

[0088] Each battery cell 200 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 200 can be cylindrical, flat, cuboid, or other shapes.

[0089] Please see Figure 3 , Figure 3 It shows Figure 2 The image shows an exploded view of a single battery cell 200. The single battery cell 200 refers to the smallest unit that makes up the battery assembly 10. Figure 3The battery cell 200 includes a housing 210, an end cap 220, an electrode assembly 230, and other functional components.

[0090] End cap 220 refers to a component that covers the opening of housing 210 to isolate the internal environment of battery cell 200 from the external environment. End cap 220 may be provided with functional components such as electrode terminals 221 and pressure relief mechanisms. In any case, the shape of end cap 220 can be adapted to the shape of housing 210 to fit it. Optionally, end cap 220 can be made of a material with a certain hardness and strength (such as aluminum alloy), so that end cap 220 is not easily deformed under pressure and impact, giving battery cell 200 higher structural strength and improved safety performance. Electrode terminals 221 can be used for electrical connection with electrode assembly 230 to output or input electrical energy to battery cell 200. The material of end cap 220 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this.

[0091] The housing 210 is a component used to cooperate with the end cap 220 to form the internal environment of the battery cell 200. This internal environment can accommodate the electrode assembly 230, electrolyte, and other components. The housing 210 and the end cap 220 can be independent components. An opening can be provided on the housing 210, and the end cap 220 can be used to close the opening to form the internal environment of the battery cell 200. Alternatively, the end cap 220 and the housing 210 can be integrated. Specifically, the end cap 220 and the housing 210 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 210, the end cap 220 closes the housing 210. The housing 210 can have various shapes and sizes, such as cuboid, cylindrical, or hexagonal prism. Specifically, the shape of the housing 210 can be determined according to the specific shape and size of the electrode assembly 230. The shell 210 can be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application embodiment does not impose any special restrictions on this.

[0092] Electrode assembly 230 is the component in the battery cell 200 where electrochemical reactions occur. The casing 210 may contain one or more electrode assemblies 230. The electrode assembly 230 is mainly formed by stacking composite strips, which are formed by thermally bonding a positive electrode sheet, a negative electrode sheet, and a separator disposed between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material constitute the main body of the electrode assembly 230, while the portions of the positive and negative electrode sheets without active material each constitute a tab. The positive and negative tabs may be located together at one end of the main body or separately at both ends of the main body. During the charging and discharging process of the battery device 10, the positive and negative active materials react with the electrolyte, and the tabs connect to the terminals to form a current circuit.

[0093] Figure 4 This is a schematic diagram of the output electrode protection structure of the protective cover in the closed position according to some embodiments of this application. Figure 5 for Figure 4 A schematic diagram of the output electrode protection structure when the middle protective cover is in the open position. Figure 6 for Figure 4 A schematic diagram of the structure of the protective cover. Figure 7 for Figure 4 A magnified view of a portion of region A in the middle. Figure 8 for Figure 4 A schematic diagram of the output pole protection structure along one side of the second direction.

[0094] This application provides a battery device. Please refer to the embodiments thereof. Figure 4 and Figure 5 The battery device includes a battery cell assembly, an output electrode bar, and an output electrode protection structure 300. The battery cell assembly includes multiple interconnected battery cells. The output electrode bar is electrically connected to the battery cell assembly.

[0095] The output protection structure 300 includes a mounting base 310 and a protective cover 320. The mounting base 310 includes a mounting wall 312, on which a connecting portion 311 is provided. The protective cover 320 is movably connected to the mounting base 310, and the protective cover 320 can switch between an open position and a closed position relative to the mounting base 310. When the protective cover 320 is in the closed position, at least a portion of the protective cover 320 is positioned opposite the mounting wall 312, such that at least a portion of the protective cover 320 covers the connecting portion 311 along a first direction ZZ', where the first direction ZZ' is the direction in which the at least portion is opposite to the mounting wall 312. When the protective cover 320 is in the open position, the projection of the protective cover 320 along the first direction ZZ' does not overlap with the projection of the connecting portion 311 along the first direction ZZ', and the projection of the connecting portion 311 along the first direction ZZ' is located outside the projection of the protective cover 320 along the first direction ZZ'.

[0096] In actual operation, the first direction ZZ' can be the vertical direction.

[0097] It should be noted that, since the protective cover 320 is movably connected to the mounting base 310, switching between the open and closed positions of the protective cover 320 can be achieved while it remains connected to the mounting base 310. It is not achieved by removing the protective cover 320 from the mounting base 310.

[0098] When the protective cover 320 is in the open position, the projection of the connecting portion 311 along the first direction ZZ' is located outside the projection of the protective cover 320 along the first direction ZZ'. That is, on a plane perpendicular to the first direction ZZ', the projection of the protective cover 320 along the first direction ZZ' is located on one side of the projection of the connecting portion 311 along the first direction ZZ', rather than around the periphery of the connecting portion 311.

[0099] The aforementioned battery device includes a battery cell assembly, an output electrode bar, and an output electrode protection structure 300. The protective cover 320 of the output electrode protection structure 300 is movably connected to the mounting base 310, allowing the protective cover 320 to switch between an open and closed position relative to the mounting base 310. When the protective cover 320 is in the closed position, at least a portion of the protective cover 320 is positioned opposite the mounting wall 312, such that at least a portion of the protective cover 320 covers the connecting portion 311 along a first direction ZZ', thereby providing protection by covering the connecting portion 311 along the first direction ZZ'. When it is necessary to electrically connect the output electrode bar to the connecting portion 311, the protective cover 320 moves relative to the mounting base 310 to the open position. When the protective cover 320 is in the open position, the projection of the protective cover 320 along the first direction ZZ' does not overlap with the projection of the connecting part 311 along the first direction ZZ'. This ensures that the protective cover 320 does not obstruct the connecting part 311 in the first direction. At the same time, since the projection of the connecting part 311 along the first direction ZZ' is located outside the projection of the protective cover 320 along the first direction ZZ', the side of the connecting part 311 away from the protective cover 320 is not obstructed by the protective cover 320. This provides sufficient operating space for the locking operation of the output electrode plate and the connecting part 311, improving the convenience of the locking operation of the output electrode plate and the connecting part 311.

[0100] In addition, in conventional techniques, the protective cover and the mounting base are often connected by a pivot joint. The protective cover's opening range is insufficient, resulting in insufficient operating space when using a socket tool for fastening. Therefore, it is usually necessary to create a clearance opening in the protective cover to provide clearance space for the socket tool. However, the presence of this clearance opening also increases the IPXXB (anti-finger contact) risk of the protective cover.

[0101] Compared to conventional technologies, the battery device of this application provides ample operating space for the locking operation of the output electrode plate and the connecting part 311 when the protective cover 320 is in the open position, thus eliminating the need to open an additional clearance opening on the protective cover 320, thereby effectively reducing the IPXXB (anti-finger contact) risk of the protective cover 320.

[0102] refer to Figure 5 Optionally, the connecting part 311 is a connecting post. When the output electrode is connected to the connecting post, the output electrode is sleeved on the connecting post. The sleeve tool is used to tighten the nut to lock the output electrode to the connecting post through the nut.

[0103] In other embodiments, the connecting part can also be a first connecting hole, and the output electrode has a second connecting hole that is aligned with the first connecting hole. A sleeve tool is used to tighten the bolt, and the output electrode is locked to the connecting part by the bolt engaging with the first and second connecting holes.

[0104] Please refer to Figure 5 In one embodiment, the mounting base 310 is provided with a locking structure 350, and the protective cover 320 is provided with a mating structure. The locking structure 350 and the mating structure lock or unlock each other. When the protective cover 320 is in the closed position, the locking structure 350 and the mating structure can be locked together. When the locking structure 350 and the mating structure are unlocked, the protective cover 320 is movably connected to the mounting base 310, so that the protective cover 320 can switch between the open position and the closed position.

[0105] In this embodiment, the protective cover 320 and the mounting base 310 are connected by a movable connection structure (such as a ball joint connection structure or a universal joint connection structure), and are connected to the mating structure by a locking structure 350.

[0106] When the protective cover 320 is in the closed position and the locking structure 350 is locked with the mating structure, the protective cover 320 and the mounting base 310 are locked together, allowing the protective cover 320 to be stably held in the closed position. This ensures that the protective cover 320 can cover the connecting portion 311 on the mounting wall 312 along the first direction ZZ', providing reliable protection for the connecting portion 311. When the locking structure 350 and the mating structure are unlocked, the protective cover 320 and the mounting base 310 can move relative to each other while maintaining the connection, thus switching to the open position. This prevents the protective cover from being lost and ensures sufficient operating space when the output electrode plate and the connecting portion 311 are locked.

[0107] Please refer to Figure 4In some embodiments, one of the protective cover 320 and the mounting base 310 is provided with a first connecting structure 330, and the other is provided with a second connecting structure 340. The first connecting structure 330 and the second connecting structure 340 are rotatably connected, so that the protective cover 320 can rotate relative to the mounting base 310 about a first direction ZZ'.

[0108] exist Figure 4 In the illustrated embodiment, the protective cover 320 is provided with a first connecting structure 330, and the mounting base 310 is provided with a second connecting structure 340. Alternatively, the first connecting structure can be located on the mounting base, and the second connecting structure on the protective cover.

[0109] The first connecting structure 330 and the second connecting structure 340 are rotatably connected, allowing the protective cover 320 to rotate relative to the mounting base 310 around the first direction ZZ'. This allows the protective cover 320 to rotate to the aforementioned open position (at which point the projection of the protective cover 320 along the first direction ZZ' does not overlap with the projection of the connecting portion 311 mounted on the mounting wall 312 of the mounting base 310, and the projection of the connecting portion 311 is located outside the projection of the protective cover 320). Through the connection method between the protective cover 320 and the mounting base 310 in this embodiment, the protective function of the protective cover 320 covering the connecting portion 311 along the first direction ZZ' when in the closed position is not affected, and sufficient space is provided for the locking operation of the output electrode plate and the connecting portion 311 when the protective cover 320 is in the open position.

[0110] In some embodiments, the first connecting structure 330 is a connector head, and the second connecting structure 340 is a connecting groove.

[0111] The first connecting structure can be a ball head structure, and the second connecting structure can be a ball groove structure.

[0112] In other embodiments, the first connecting structure may also be a universal joint, and the second connecting structure may also be a universal shaft structure that cooperates with the universal joint.

[0113] Please combine Figure 6 and Figure 7 In some embodiments, the second connection structure 340 includes a first groove 341 and a second groove 342, the first groove 341 extends along the second direction YY', and one end of the first groove 341 along the second direction YY' is connected to the second groove 342.

[0114] The first connecting structure 330 includes a rod portion 331 and a head portion 332, with one end of the rod portion 331 connected to the head portion 332. The head portion 332 engages with a second groove 342 to allow the first connecting structure 330 to rotate relative to the second connecting structure 340 about a first direction ZZ', and the rod portion 331 to rotate into or out of the first groove 341.

[0115] exist Figure 6 and Figure 7 In the illustrated embodiment, the end of the first groove 341 away from the second groove 342 penetrates the surface of the mounting base 310 along the third direction XX', and the end of the rod 331 away from the head 332 is connected to the protective cover 320. The third direction XX', the second direction YY', and the first direction ZZ' intersect each other.

[0116] When the protective cover 320 is in the closed position, the end of the rod 331 away from the head 332 is connected to the protective cover 320, the head 332 is located in the second groove 342, and the rod 331 is located in the first groove 341. When it is necessary to switch to the open position, the protective cover 320 is rotated to drive the first connecting structure 330 to rotate. The head 332 then rotates in the second groove 342, thereby driving the rod 331 to rotate out of the first groove 341. During this process, the protective cover 320 rotates around the first direction ZZ' axis with the head 332 as the rotation center, thereby being able to rotate to the open position.

[0117] Conversely, when switching to the closed position, rotating the protective cover 320 causes the first connecting structure 330 to rotate, which in turn causes the head 332 to rotate within the second groove 342, thereby causing the rod 331 to rotate into the first groove 341, and the protective cover 320 switches to the closed position. Figure 7 As shown.

[0118] The first connecting structure 330 and the second connecting structure 340 in this embodiment are simple in structure, easy to assemble, and enable the protective cover 320 to switch between the open position and the closed position when connected to the mounting base 310.

[0119] In other embodiments, the first connecting structure 330 may be provided on the mounting base 310, and the second connecting structure 340 may be provided on the protective cover 320. In this case, the end of the first groove 341 away from the second groove 342 penetrates the surface of the protective cover 320 along the third direction XX', and the end of the rod 331 away from the head 332 is connected to the mounting base 310.

[0120] Please refer to Figure 7 In some embodiments, the second groove 342 and the first groove 341 jointly penetrate the surface of the mounting base 310 on the same side along the third direction XX'.

[0121] Since the second groove 342 and the first groove 341 both penetrate the same side of the mounting base 310 along the third direction XX', during assembly, the head 332 can be moved from one end of the second groove 342 along the third direction XX' into the second groove 342. After the head 332 is in place, the protective cover 320 can be rotated around the first direction ZZ' with the head 332 as the rotation center, allowing the rod 331 to be rotated into the first groove 341 to mate with it. It is not necessary to forcibly insert the head 332 into the second groove 342 through the first groove 341. Thus, the width of the first groove 341 can match the width of the rod 331. The width of the second groove 342 matches the width of the head 332, ensuring a secure fit between the first connecting structure 330 and the second connecting structure 340.

[0122] In this embodiment, the second groove 342 and the first groove 341 penetrate the surface of the other on the same side along the third direction XX', so that the head 332 can be moved from one end of the second groove 342 along the third direction XX' into the second groove 342, which facilitates assembly and makes the first connecting structure 330 and the second connecting structure 340 fit together securely.

[0123] In other embodiments, the second groove 342 and the first groove 341 may both penetrate the same side of the protective cover 320 along the third direction XX'.

[0124] Please refer to Figure 7 In some embodiments, the second connection structure 340 further includes a guide groove 343, which extends along a third direction XX' and is disposed on the side of the second groove 342 along the first direction ZZ', and penetrates the groove wall along the first direction ZZ'.

[0125] Guide groove 343, second groove 342, and first groove 341 all penetrate the same side surface of mounting base 310 along the third direction XX'. Guide groove 343 is used to allow rod portion 331 to enter along the third direction XX'.

[0126] During actual assembly, the head 332 can be moved from one end of the second groove 342 along the third direction XX' into the second groove 342. During this process, the length direction of the rod 331 is placed along the first direction ZZ', and the rod 331 is simultaneously moved from one end of the guide groove 343 along the third direction XX' into the guide groove 343. In this way, as the head 332 is pushed into the second groove 342, the rod 331 moves along the guide groove 343, which can serve as a guide and reduce the thrust on the rod 331, thereby reducing the risk of the rod 331 breaking.

[0127] Once the head 332 is in position in the second groove 342, the protective cover 320 can be rotated around the second direction YY' with the head 332 as the rotation center. This will rotate the rod 331 out of the guide groove 343, so that the length direction of the rod 331 is along the third direction XX'. Then, the protective cover 320 can be rotated around the first direction ZZ' with the head 332 as the rotation center, so that the rod 331 can be rotated into the first groove 341 and engage with it.

[0128] In this embodiment, the guide groove 343 not only facilitates the assembly of the second connecting structure 340 and the first connecting structure 330, reducing the risk of the rod 331 breaking, but also allows the protective cover 320 to rotate around the second direction YY' with the head 332 as the rotation center, so that the rod 331 can rotate into or out of the guide groove 343. This increases the rotational freedom of the protective cover 320, further facilitating the flexible rotation of the protective cover 320 and providing sufficient space for the locking operation.

[0129] In addition, when the protective cover 320 rotates to the point where the length of the rod 331 is along the third direction XX', the protective cover 320 can rotate around the third direction XX' with the head 332 as the rotation center. This further increases the rotational freedom of the protective cover 320, which is conducive to the flexible rotation of the protective cover 320 and provides sufficient space for the locking operation.

[0130] In other embodiments, the guide groove 343, the second groove 342, and the first groove 341 may all penetrate the same side of the protective cover 320 along the third direction XX'.

[0131] In some embodiments, the head 332 has a ball-shaped structure and fits against the wall of the second groove 342. The wall of the second groove 342 is curved to fit against the surface of the head 332.

[0132] In other embodiments, the head 332 may not be in a spherical shape, but may be a polyhedral structure. The groove wall of the second groove 342 is also not limited to a curved surface.

[0133] In the above embodiment, the first connecting structure 330 is disposed on the protective cover 320, and the second connecting structure 340 is disposed on the mounting base 310. In other embodiments, the first connecting structure may be disposed on the mounting base, and the second connecting structure may be disposed on the protective cover.

[0134] In one embodiment, the output electrode protection structure 300 is located on one side of multiple battery cells along the second direction YY', which intersects the first direction ZZ'. The first connecting structure 330 is rotatable relative to the second connecting structure 340 about the second direction YY'. Thus, the protective cover 320 can rotate relative to the mounting base 310 about the second direction YY', further increasing the rotational freedom of the protective cover 320, facilitating flexible rotation of the protective cover 320, and providing sufficient space for locking operations.

[0135] In one embodiment, the output electrode protection structure 300 is located on one side of multiple battery cells along the second direction YY', which intersects the first direction ZZ'. The first connecting structure 330 is rotatable relative to the second connecting structure 340 about a third direction XX', which intersects the second direction YY' and the first direction ZZ'. Thus, the protective cover 320 can rotate relative to the mounting base 310 about the third direction XX', further increasing the rotational freedom of the protective cover 320, facilitating flexible rotation of the protective cover 320, and providing sufficient space for locking operations.

[0136] In one embodiment, the output electrode protection structure 300 is located on one side of a plurality of battery cells along the second direction YY', which intersects with the first direction ZZ'.

[0137] Please refer to Figure 5 The mounting base 310 includes a first support portion 313 connected to the mounting wall 312. The first support portion 313 is located at one end of the mounting wall 312 along the second direction YY' near the battery cell and at one end of the mounting wall 312 along the third direction XX'. The third direction XX' intersects the second direction YY' and the first direction ZZ'.

[0138] The first connecting structure 330 is provided on the protective cover 320, and the second connecting structure 340 is provided on the first support part 313.

[0139] In this embodiment, the first support portion 313 is located at one end of the mounting wall 312 along the second direction YY' near the battery cell, and at one end of the mounting wall 312 along the third direction XX', as shown below. Figure 5 As shown, the first support 313 is located at the top corner of the mounting wall 312. Thus, the connection area between the second connecting structure 340 and the first connecting structure 330 is located near the top corner of the mounting wall 312. Therefore, when the protective cover 320 rotates relative to the mounting base 310, it can rotate to the outside of the mounting wall 312, fully avoiding the area near the connecting part 311.

[0140] Please refer to Figure 5In some embodiments, the mounting base 310 includes a second support portion 314 connected to the mounting wall 312, the second support portion 314 being located at the end of the mounting wall 312 away from the first support portion 313 along a third direction XX'.

[0141] The second support 314 is provided with a first locking structure 351, and the protective cover 320 is provided with a first mating structure 361. The first locking structure 351 and the first mating structure 361 lock or unlock each other.

[0142] Specifically, the connection between the second connecting structure 340 and the first connecting structure 330 is located at the first support portion 313, that is, at the other end of the mounting base 310 along the third direction XX', and is a movable connection.

[0143] In this embodiment, by placing the second support portion 314 at the end of the mounting wall 312 along the third direction XX' away from the first support portion 313, when the first locking structure 351 and the first mating structure 361 are locked, the locking area and the movable connection area (i.e., the connection between the second connecting structure 340 and the first connecting structure 330) are distributed along the third direction XX'. This allows the protective cover 320 to be movably connected to the mounting base 310 at one end along the third direction XX', while the other end along the third direction XX' is locked. Thus, the protective cover 320 can be securely fixed to the mounting base 310 in the closed position, ensuring that the protective cover 320 is reliably fixed in the closed position.

[0144] Specifically, the first locking structure 351 can be a locking protrusion, and the first mating structure 361 can be a locking groove. In other embodiments, the first locking structure 351 can be a locking groove, and the first mating structure 361 can be a locking protrusion.

[0145] In some embodiments, the mounting wall 312 is provided with a second locking structure 352 at one end away from the battery cell along the second direction YY', and the protective cover 320 is provided with a second mating structure 362. The second locking structure 352 and the second mating structure 362 lock or unlock each other. Thus, when the protective cover 320 is in the closed position, the locking of the second locking structure 352 and the second mating structure 362 further secures the protective cover 320 to the mounting base 310, thereby reliably fixing the protective cover 320 in the closed position.

[0146] In some embodiments, the mounting wall 312 is provided with a third locking structure 353 at one end along the third direction XX', and the protective cover 320 is provided with a third mating structure 363, the third locking structure 353 and the third mating structure 363 are locked or unlocked to each other.

[0147] Thus, when the protective cover 320 is in the closed position, it can be securely fixed to the mounting base 310 by locking the third locking structure 353 and the third mating structure 363, thereby ensuring that the protective cover 320 is reliably fixed in the closed position.

[0148] Combination Figure 4 and Figure 6 In some embodiments, the output electrode protection structure 300 is located on one side of a plurality of battery cells along the second direction YY', which intersects the first direction ZZ'.

[0149] The protective cover 320 includes a first protective wall 321 and a second protective wall 322 connected to the first protective wall 321. When the protective cover 320 is in the closed position, the first protective wall 321 covers the connecting portion 311 along the first direction ZZ'. When the protective cover 320 is in the closed position, the second protective wall 322 is located on the side of the first protective wall 321 away from the battery cell along the second direction YY', so that the second protective wall 322 covers the connecting portion 311 along the second direction YY'.

[0150] In this embodiment, the protective cover 320 includes a first protective wall 321 and a second protective wall 322 connected to the first protective wall 321. When the protective cover 320 is in the closed position, it can cover the connecting part 311 along the second direction YY' through the second protective wall 322, thereby further protecting the connecting part 311.

[0151] Combination Figure 4 and Figure 6 In some embodiments, the mounting wall 312 is provided with a second locking structure 352 at one end away from the battery cell along the second direction YY', and the second protective wall 322 is provided with a second mating structure 362, and the second locking structure 352 and the second mating structure 362 are locked or unlocked to each other.

[0152] Specifically, the second locking structure 352 can be a locking protrusion, and the second mating structure 362 can be a locking groove. In other embodiments, the second locking structure 352 can be a locking groove, and the second mating structure 362 can be a locking protrusion.

[0153] In some embodiments, the output electrode protection structure 300 is located on one side of a plurality of battery cells along the second direction YY', where the second direction YY' intersects the first direction ZZ'.

[0154] The protective cover 320 includes a first protective wall 321 and a third protective wall 323 connected to the first protective wall 321. When the protective cover 320 is in the closed position, the first protective wall 321 covers the connecting portion 311 along the first direction ZZ'. When the protective cover 320 is in the closed position, the third protective wall 323 is located on the side of the first protective wall 321 along the third direction XX', so that the third protective wall 323 covers the connecting portion 311 along the third direction XX'. The third direction XX' intersects with the second direction YY' and the first direction ZZ'.

[0155] In this embodiment, the protective cover 320 includes a first protective wall 321 and a third protective wall 323 connected to the first protective wall 321. When the protective cover 320 is in the closed position, it can cover the connecting part 311 along the third direction XX' through the third protective wall 323, thereby further protecting the connecting part 311.

[0156] Specifically, the third locking structure 353 can be a locking protrusion, and the third mating structure 363 can be a locking groove. In other embodiments, the third locking structure 353 can be a locking groove, and the third mating structure 363 can be a locking protrusion.

[0157] Please refer to Figure 6 In some embodiments, the protective cover 320 includes a fourth protective wall 324 connected to the first protective wall 321. When the protective cover 320 is in the closed position, the fourth protective wall 324 and the third protective wall 323 are disposed opposite each other along the third direction XX', so that the fourth protective wall 324 covers the connecting portion 311 along the third direction XX'.

[0158] In this embodiment, the protective cover 320 includes a first protective wall 321 and a fourth protective wall 324 connected to the first protective wall 321. When the protective cover 320 is in the closed position, it can cover the connecting part 311 along the third direction XX' through the fourth protective wall 324, thereby further protecting the connecting part 311.

[0159] Please refer to Figure 5 and Figure 8 In some embodiments, the third protective wall 323 includes an abutment wall 3231 and a weakening wall 3232. One end of the weakening wall 3232 along the first direction ZZ' is connected to the first protective wall 321, and the other end is connected to the abutment wall 3231. The end of the abutment wall 3231 away from the weakening wall 3232 is used to abut against the output electrode plate connected to the connection portion 311.

[0160] The thickness of the weakening wall 3232 is less than the thickness of the abutting wall 3231, so that the deformation capacity of the weakening wall 3232 is stronger than that of the abutting wall 3231.

[0161] When the output electrode is not connected to the connecting part 311, the end of the third protective wall 323 away from the first protective wall 321 is lower than the surface of the mounting wall 312. Thus, when the output electrode covers the surface of the mounting wall 312 and is locked to the connecting part 311, an external force along the first direction ZZ' can be applied to the third protective wall 323 to deform the weakening wall 3232, thereby allowing the abutment wall 3231 to rise along the first direction ZZ' onto the output electrode and abut against it. This ensures that the third protective wall 323 reliably abuts against the output electrode, protecting the connecting part 311 and enhancing the protection against finger contact.

[0162] In some embodiments, the mounting wall 312 is provided with a third locking structure 353, which is located on one side of the mounting wall 312 along the third direction XX'.

[0163] The third protective wall 323 is provided with a third mating structure 363, and the third locking structure 353 and the third mating structure 363 are locked or unlocked to each other.

[0164] When the output electrode plate is not connected to the connecting part 311, the third locking structure 353 locks with the third mating structure 363, so that the protective cover 320 and the mounting base 310 can be reliably connected, facilitating transportation and transfer. In order for the third mating structure 363 to mate with the third locking structure 353, the position of the third locking structure 353 on the third protective wall 323 is lower than the surface of the mounting wall 312.

[0165] When the output electrode plate covers the surface of the mounting wall 312 and is locked to the connecting part 311, the end of the third protective wall 323 away from the first protective wall 321 abuts against the output electrode plate, then the third locking structure 353 and the third mating structure 363 do not need to be locked.

[0166] In this embodiment, when the output electrode is not connected to the connecting part 311, in order for the third mating structure 363 to be able to mate with the third locking structure 353, the position of the third locking structure 353 on the third protective wall 323 should be lower than the surface of the mounting wall 312. Therefore, the third protective wall 323 needs to be made longer along the dimension of the first direction ZZ', so that when the third protective wall 323 deforms under the action of external force and abuts against the output electrode, the third protective wall 323 can abut against the output electrode more reliably.

[0167] In some embodiments, the first connection structure 330 and the second connection structure 340 are interference-fitted.

[0168] For example, in the above embodiment, the head 332 can be interference-fitted with the second groove 342. Thus, when the protective cover 320 is rotated to the open position, the interference force between the first connecting structure 330 and the second connecting structure 340 keeps them relatively fixed, allowing the protective cover 320 to hover in the open position for easy locking. No additional tools are needed to secure the protective cover 320.

[0169] In some embodiments, the first connecting structure and / or the second connecting structure are provided with a positioning structure for positioning the protective cover 320 in an open position relative to the mounting base 310.

[0170] For example, the positioning structure includes a first positioning structure and a second positioning structure. The first positioning structure is, for example, a positioning protrusion, and the second positioning structure is, for example, a positioning groove. The positioning protrusion and the positioning groove engage with each other. The positioning protrusion is located on the head 332, and the positioning groove is located on the groove wall of the second groove 342. When the protective cover 320 is in the open position, the positioning protrusion engages with the positioning groove, thereby positioning the protective cover 320 in the open position. Alternatively, the positioning groove is located on the head 332, and the positioning protrusion is located on the groove wall of the second groove 342. When it is necessary to rotate the protective cover 320 to change its position, the engaging force between the positioning protrusion and the positioning groove can be overcome by applying external force.

[0171] In other embodiments, the positioning structure may also take other forms. For example, the positioning structure is a spherical groove located on the wall of the second groove 342. When the protective cover 320 is rotated into position, an external force can be applied to push the protective cover 320, causing the head 332 to enter the spherical groove and lock into it. At this time, the protective cover 320 is suspended in the open position.

[0172] It should be noted that in the above embodiments, the various components of the output electrode protection structure 300 are injection molded parts. For example, the protective cover 320, the mounting base 310, the first connecting structure, the second connecting structure, each locking structure, and each mating structure can all be injection molded. In this way, the two components that are interlocked and have an interference fit can be mated or disengaged by deformation after applying external force.

[0173] The components on the protective cover 320 (such as the first connecting structure, connector, mating structure, and positioning structure) can be integrally injection molded with it, and the components on the mounting base 310 (such as the second connecting structure, locking structure, and positioning structure) can be integrally injection molded with it.

[0174] An embodiment of this application also provides an electrical device, including a battery device according to any of the above embodiments, the battery device being used to provide electrical energy to the electrical device.

[0175] The aforementioned electrical device, including the battery assembly, comprises a battery cell assembly, an output electrode switch, and an output electrode protection structure. The protective cover 320 of the output electrode protection structure is movably connected to the mounting base 310, allowing the protective cover 320 to switch between an open and closed position. In the closed position, the protective cover 320 is at least partially positioned opposite the mounting wall 312, such that at least a portion of the protective cover 320 covers the connecting portion 311 along a first direction ZZ', where ZZ' is the direction at least partially opposite the mounting wall 312, thereby providing protection by covering the connecting portion 311 along the first direction ZZ'. When it is necessary to electrically connect the output electrode switch to the connecting portion 311, the protective cover 320, while connected to the mounting base 310, can move relative to the mounting base 310 to move to the open position. When the protective cover 320 is in the open position, the projection of the protective cover 320 along the first direction ZZ' does not overlap with the projection of the connecting part 311 along the first direction ZZ'. This ensures that the protective cover 320 does not obstruct the connecting part 311 in the first direction. At the same time, since the projection of the connecting part 311 along the first direction ZZ' is located outside the projection of the protective cover 320 along the first direction ZZ', the side of the connecting part 311 away from the protective cover 320 is not obstructed by the protective cover 320. This provides sufficient operating space for the locking operation of the output electrode plate and the connecting part 311, improving the convenience of the locking operation of the output electrode plate and the connecting part 311.

[0176] 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, characterized in that, The battery device includes: A battery cell assembly, the battery cell assembly comprising a plurality of battery cells electrically connected to each other; An output electrode plate, wherein the output electrode plate is electrically connected to the battery cell assembly; Output protection structure, the output protection structure comprising: A mounting base includes a mounting wall, the mounting wall having a connecting portion for connecting to the output electrode plate; and... A protective cover is movably connected to the mounting base, and the protective cover can switch between an open position and a closed position relative to the mounting base; Wherein, when the protective cover is in the closed position, at least a portion of the protective cover is disposed opposite to the mounting wall, such that at least a portion of the protective cover covers the connecting portion along the first direction; when the protective cover is in the open position, the projection of the protective cover along the first direction does not overlap with the projection of the connecting portion along the first direction, and the projection of the connecting portion along the first direction is located outside the projection of the protective cover along the first direction. Of the protective cover and the mounting base, one is provided with a first connecting structure and the other is provided with a second connecting structure; the first connecting structure and the second connecting structure are rotatably connected, so that the protective cover can rotate relative to the mounting base around the first direction.

2. The battery device according to claim 1, characterized in that, The mounting base is provided with a locking structure, and the protective cover is provided with a mating structure; When the protective cover is in the closed position, the locking structure and the mating structure are locked together; when the locking structure and the mating structure are unlocked, the protective cover is movably connected to the mounting base, so that the protective cover can switch between the open position and the closed position.

3. The battery device according to claim 1, characterized in that, The first connection structure and the second connection structure are interference-fitted.

4. The battery device according to claim 1 or 3, characterized in that, The second connection structure includes a first groove and a second groove, wherein the first groove extends along a second direction, and one end of the first groove along the second direction is connected to the second groove; The first connecting structure includes a rod and a head, one end of the rod being connected to the head; the head engaging with the second slot to allow the first connecting structure to rotate relative to the second connecting structure about the first direction, and the rod being able to rotate into or out of the first slot; Wherein, the first groove penetrates the third-direction side surface of the mounting base, and the end of the rod away from the head is connected to the protective cover; or, the first groove penetrates the third-direction side surface of the protective cover, and the end of the rod away from the head is connected to the mounting base. The third direction, the second direction, and the first direction intersect each other.

5. The battery device according to claim 4, characterized in that, The second groove and the first groove together penetrate the surface of the mounting base or the protective cover on the same side in the third direction.

6. The battery device according to claim 5, characterized in that, The second connection structure further includes a guide groove, the guide groove extending along the third direction, and the guide groove is disposed on the groove wall of the second groove on the side along the first direction, and penetrates the groove wall along the first direction; The guide groove, the second groove, and the first groove all penetrate the surface of the mounting base or the protective cover on the same side along the third direction; The guide groove is used to allow the rod to enter along the third direction.

7. The battery device according to claim 1, characterized in that, The output electrode protection structure is located on one side of the plurality of battery cells along a second direction, which intersects with the first direction; The mounting base includes a first support portion connected to the mounting wall. The first support portion is located at one end of the mounting wall along a second direction near the battery cell, and on one side of the mounting wall along a third direction, which intersects the second direction and the first direction.

8. The battery device according to claim 7, characterized in that, The mounting base includes a second support portion connected to the mounting wall, the second support portion being located at one end of the mounting wall that is remote from the first support portion along a third direction; The second support is provided with a first locking structure, and the protective cover is provided with a first mating structure. The first locking structure and the first mating structure lock or unlock each other.

9. The battery device according to claim 1, characterized in that, The output electrode protection structure is located on one side of the plurality of battery cells along a second direction, which intersects with the first direction; The protective cover includes a first protective wall and a second protective wall connected to the first protective wall. When the protective cover is in the closed position, the first protective wall covers the output electrode along the first direction. When the protective cover is in the closed position, the second protective wall is located on the side of the first protective wall away from the battery cell along the second direction, so that the second protective wall covers the output electrode along the second direction.

10. The battery device according to claim 9, characterized in that, The mounting wall is provided with a second locking structure at one end away from the battery cell along the second direction, and a second mating structure is provided on the second protective wall. The second locking structure and the second mating structure lock or unlock each other.

11. The battery device according to claim 1, characterized in that, The output electrode protection structure is located on one side of the plurality of battery cells along a second direction, which intersects with the first direction; The protective cover includes a first protective wall and a third protective wall connected to the first protective wall. When the protective cover is in the closed position, the first protective wall covers the output electrode along the first direction. When the protective cover is in the closed position, the third protective wall is located on one side of the first protective wall along the third direction, so that the third protective wall covers the output electrode along the third direction, which intersects the second direction and the first direction.

12. The battery device according to claim 11, characterized in that, The third protective wall includes an abutment wall and a weakening wall. One end of the weakening wall along the first direction is connected to the first protective wall, and the other end is connected to the abutment wall. The end of the abutment wall away from the weakening wall is used to abut against the output electrode plate connected to the connecting part. The thickness of the weakened wall is less than the thickness of the abutting wall, so that the deformation capacity of the weakened wall is stronger than that of the abutting wall.

13. The battery device according to claim 11, characterized in that, The mounting wall is provided with a third locking structure, which is located on one side of the mounting wall along the third direction; The third protective wall is provided with a third mating structure, and the third locking structure locks or unlocks with the third mating structure.

14. An electrical appliance, characterized in that, The battery device includes any one of claims 1-13, the battery device being used to provide electrical energy to the electrical device.

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