Battery device and electric device

Abstract

The utility model relates to the technical field of battery structures, and provides a battery device and a power utilization device, the battery device comprises a battery monomer, an electric connecting piece, a box body assembly and a protection assembly; the electric connecting pieces are electrically connected to the battery monomers, the protection assembly comprises a protection piece and a mounting piece, the protection piece is connected to the mounting piece, and the mounting piece is connected to the box body assembly; the protection part comprises a first protection structure, and the first protection structure is arranged between the connection position of the first beam body and the second beam body of the box body assembly and the electric connection part in a separated mode and / or is arranged between at least one of the first beam body and the second beam body of the box body assembly and the electric connection part in a separated mode. According to the battery device provided by the embodiment of the invention, the electric connecting piece is separated and protected through the first protection structure, so that the impaling influence of a sharp interface on the electric connecting piece can be effectively reduced, the insulation protection effect of the protection piece on the electric connecting piece can be effectively improved, and the probability of insulation failure of the protection piece is relatively low.

Description

Technical Field

[0001] This application relates to the technical field of battery structures, and in particular provides a battery device and an electrical device. Background Art

[0002] As an energy storage system for electric vehicles, a battery device requires high-voltage connectors inside to achieve current connection. To ensure the high energy density and over-current safety of the battery device, in addition to installing high-voltage connectors in a limited space, it is also necessary to meet the safety protection of the high-voltage connectors and the surrounding interfaces.

[0003] In related technologies, the protection of high-voltage connectors within the limit interface is mainly achieved by wrapping wear-resistant network tubes and foams. However, the combination of wear-resistant network tubes and foams is easily punctured by sharp interfaces, and the specific installation and protection positions are prone to deviation when manually winding the wear-resistant network tubes and foams, resulting in the failure of the insulation protection of the high-voltage connectors. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a battery device and an electrical device, aiming to solve the problem that the insulation protection failure is likely to occur when using the method of wrapping wear-resistant network tubes and foams in related technologies.

[0005] To achieve the above purpose, the technical solution adopted in the embodiments of this application is:

[0006] The embodiments of this application provide a battery device, including battery cells, electrical connectors, a box body assembly, and a protection assembly; the electrical connectors are electrically connected to the battery cells, an accommodation cavity is formed inside the box body assembly, and the battery cells and the electrical connectors are accommodated in the accommodation cavity; the protection assembly includes a protection member and a mounting member, the protection member is connected to the mounting member, and the mounting member is connected to the box body assembly; wherein, the box body assembly includes a first beam body and a second beam body, and the first beam body is connected to the second beam body; the protection member includes a first protection structure, and the first protection structure is separately arranged between the connection of the first beam body and the second beam body and the electrical connector; and / or, the first protection structure is separately arranged between at least one of the first beam body and the second beam body and the electrical connector.

[0007] Advantages of the embodiments of the present application: The battery device provided by the embodiments of the present application connects the mounting member of the protection component to the box body component, so that the first protection structure of the protection member is separately arranged between the connection of the first beam body and the second beam body and the electrical connection member, and / or separately arranged between at least one of the first beam body and the second beam body and the electrical connection member for insulation protection; by the way that the first protection structure of the protection member is separately arranged between the electrical connection member and the first beam body and the second beam body of the box body component, the influence of the sharp interface piercing on the electrical connection member can be effectively reduced, and the assembly is made more simple and accurate by connecting the mounting member to the box body component; thus, the insulation protection effect of the protection member on the first beam body and the second beam body of the box body component can be effectively improved, and the probability of insulation failure of the protection member is relatively low.

[0008] In some embodiments, the mounting member includes a first connection structure, and the first connection structure is connected to the first protection structure; the first connection structure is connected to at least one of the first beam body and the second beam body.

[0009] By adopting the above technical solution, the first connection structure can be connected to at least one of the first beam body and the second beam body to achieve the purpose of fixedly assembling the first protection structure.

[0010] In some embodiments, a first connection hole is formed on the first beam body, and a second connection hole is formed on the second beam body; the number of the first connection structures is multiple, and the multiple first connection structures are connected to at least one of the first connection hole and the second connection hole.

[0011] By adopting the above technical solution, part of the multiple first connection structures is connected to the first connection hole of the first beam body, and at the same time, the other part of the multiple first connection structures is connected to the second connection hole of the second beam body, so that the first protection structure is connected to the first beam body and / or the second beam body through the first connection structure to improve the assembly stability of the first protection structure.

[0012] In some embodiments, the first connection structure includes a first clamping portion and a riveting portion connected to each other, the first clamping portion is connected to the first protection structure, and the riveting portion is riveted to at least one of the first beam body and the second beam body.

[0013] By adopting the above technical solution, the first clamping portion of the first connection structure can form a connection with the first protection structure, and at the same time, the riveting portion of the first connection structure can be riveted to at least one of the first beam body and the second beam body, so that the first protection structure can be connected to at least one of the first beam body and the second beam body.

[0014] In some embodiments, at least one crease is provided on the first protection structure, and the crease divides the first protection structure into a plurality of bending portions; the bending portions are configured to be bendable around the crease.

[0015] By adopting the above technical solution, the first protective structure can form a plurality of bending parts through creases, and the plurality of bending parts can be bent around the corresponding creases, so that the plurality of bending parts can be bent and deformed to adapt to the connection parts inside the box body assembly, thereby improving the convenience of assembling the first protective structure.

[0016] In some embodiments, a plurality of first clamping grooves are formed in at least one bending part, and the first clamping grooves are in clamping fit with the first clamping parts, and the plurality of first clamping grooves are arranged at intervals in any direction in sequence.

[0017] By adopting the above technical solution, the first clamping part can be clamped in the first clamping groove, and the first clamping part can be clamped in any one of the plurality of first clamping grooves to realize the adjustment of the assembly position.

[0018] In some embodiments, the first protective structure has elasticity.

[0019] By adopting the above technical solution, the first protective structure can be bent and deformed to a certain extent according to its own elasticity, so that it can fit better with the connection parts of the box body assembly, thereby improving the convenience of assembling the first protective structure.

[0020] In some embodiments, the number of the first beam bodies and the second beam bodies is multiple, and the multiple first beam bodies and the multiple second beam bodies are connected end to end in sequence to form a frame; the box body assembly further includes a third beam body, the third beam body is arranged in the frame, and the opposite ends of the third beam body are connected to the first beam body; at least one end of the third beam body is provided with an avoidance groove, the first beam body encloses the avoidance groove and forms an avoidance space, and the electrical connector is arranged through the avoidance space; the protective part further includes a second protective structure, at least part of the second protective structure is arranged in the avoidance space and is used for separating the electrical connector and at least part of the inner wall surface of the avoidance groove; and / or, part of the first protective structure extends into the avoidance space and is used for separating the electrical connector and at least part of the inner wall surface of the avoidance groove.

[0021] By adopting the above technical solution, the inner wall surface of the avoidance groove of the third beam body is insulated and protected by the first protective structure and / or the second protective structure, so as to reduce the probability of short circuit between the electrical connector and the third beam body.

[0022] In some embodiments, at least one end of the third beam body includes a first end portion, a second end portion, and a third end portion arranged in sequence. The first end portion is connected to the first beam body. An avoidance groove is formed between the second end portion and the third end portion. The second end portion, the third end portion, and the first beam body enclose an avoidance space. A part of the first protection structure extends between the second end portion and the electrical connector and is used to separate the second end portion and the electrical connector. The second protection structure is arranged between the third end portion and the electrical connector and is used to separate the third end portion and the electrical connector. The mounting member includes a second connection structure, and the second connection structure is connected to the second protection structure. The second connection structure is connected to the third end portion.

[0023] By adopting the above technical solution, the second connection structure can be used to connect the second protection structure to the third end portion, and the second protection structure is separated and arranged between the third end portion and the electrical connector. At the same time, a part of the first protection structure extends between the second end portion and the electrical connector, so that the electrical connector can be effectively isolated and protected.

[0024] In some embodiments, a cavity is formed inside the third beam body, and the cavity penetrates from the third end portion to the outside. A first clamping groove is formed on the second connection structure, and the second connection structure is clamped to the third end portion so that the side wall of the third beam body is clamped in the first clamping groove.

[0025] By adopting the above technical solution, the second connection structure can be clamped to the third end portion through the first clamping groove to realize the assembly of the second protection structure.

[0026] In some embodiments, the number of the second connection structures is at least two, and at least two side walls of the third beam body at the third end portion are respectively clamped in the first clamping grooves of the corresponding second connection structures.

[0027] By adopting the above technical solution, a plurality of second connection structures are clamped on at least two side walls of the third beam body to improve the assembly stability of the second protection structure.

[0028] In some embodiments, the second connection structure includes a second clamping portion and a buckle portion connected to each other. The second clamping portion is connected to the second protection structure, and the first clamping groove is formed on the buckle portion.

[0029] By adopting the above technical solution, the second clamping portion of the second connection structure can be connected to the second protection structure. At the same time, the buckle portion of the second connection structure can be clamped to the third end portion by using the first clamping groove, so that the second protection structure can be assembled to the third end portion and used to separate and protect the electrical connector.

[0030] In some embodiments, a plurality of second clamping grooves are formed on the second protection structure, and the second clamping grooves are clamped and matched with the second clamping portions. The plurality of second clamping grooves are arranged at intervals in any direction.

[0031] By adopting the above technical solution, the second clamping part can be clamped in the second clamping groove, and the second clamping part can be clamped in any one of a plurality of second clamping grooves to realize the adjustment of the assembly position.

[0032] In some embodiments, the box body assembly further includes a sheet metal part, and the sheet metal part is arranged in the accommodating cavity; the protective part further includes a third protective structure, the mounting part includes a third connecting structure, the third protective structure is connected to the third connecting structure, the third connecting structure is connected to the sheet metal part, and the third protective structure is arranged between the sheet metal part and the electrical connecting part and is used for separating the electrical connecting part and the sheet metal part.

[0033] By adopting the above technical solution, the third connecting structure is used to connect the sheet metal part and the third protective structure, so that the third protective structure is located between the sheet metal part and the electrical connecting part, which can effectively improve the insulation protection effect on the sheet metal part and can effectively reduce the probability of the sheet metal part scratching the electrical connecting part.

[0034] In some embodiments, the third connecting structure is provided with a second clamping groove, and the third connecting structure is clamped at the outer edge of the sheet metal part through the second clamping groove.

[0035] By adopting the above technical solution, the installation method of clamping the third connecting structure at the outer edge of the sheet metal part through the second clamping groove can enable the third protective structure to effectively protect the outer edge of the sheet metal part.

[0036] In some embodiments, the protection component further includes a fixing part, the fixing part is arranged on the protection part, and the fixing part is connected to the electrical connecting part.

[0037] By adopting the above technical solution, while the protection part is connected to the box body assembly through the mounting part, the fixing part arranged on the protection part can also be connected to the electrical connecting part, so as to realize the reinforcement effect on the electrical connecting part and improve the stability of the electrical connecting part.

[0038] In a second aspect, an electrical device provided by an embodiment of the present application includes the battery device as described above, and the battery device is used to provide electrical energy.

[0039] Advantageous effects of the embodiments of the present application: The electrical device provided by the embodiments of the present application includes the battery device as described above. Therefore, the probability of a short circuit occurring in the battery device inside the electrical device is lower, and the reliability of the electrical device is better. Description of the Drawings

[0040] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 Schematic structural diagram of a vehicle provided by an embodiment of the present application;

[0042] Figure 2 Explosion diagram of a battery device provided by an embodiment of the present application;

[0043] Figure 3 Schematic internal structural diagram of a battery device provided by an embodiment of the present application;

[0044] Figure 4 For Figure 3 Partial enlarged schematic diagram of part A;

[0045] Figure 5 Schematic structural diagram of a protection component including a first protection structure and a first connection structure provided by an embodiment of the present application;

[0046] Figure 6 Schematic structural diagram of the first protection structure provided by an embodiment of the present application;

[0047] Figure 7 Schematic structural diagram of the first connection structure provided by an embodiment of the present application;

[0048] Figure 8 Schematic structural diagram of a protection component including a second protection structure and a second connection structure provided by an embodiment of the present application;

[0049] Figure 9 Schematic structural diagram of the second protection structure provided by an embodiment of the present application;

[0050] Figure 10 Schematic structural diagram of the second connection structure provided by an embodiment of the present application;

[0051] Figure 11 Schematic structural diagram of the third beam body provided by an embodiment of the present application;

[0052] Figure 12 Schematic structural diagram of a protection component including a third protection structure and a third connection structure provided by an embodiment of the present application.

[0053] Among them, the reference numerals in the figures:

[0054] 1000, vehicle;

[0055] 100, Battery device; 200, Controller; 300, Motor;

[0056] 10, Housing assembly; 101, Accommodation cavity; 102, Frame; 103, Avoidance space; 11, First housing; 12, Second housing; 110, First beam; 120, Second beam; 130, Third beam; 1301, Avoidance groove; 131, First end; 132, Second end; 133, Third end;

[0057] 20, Battery cell;

[0058] 30, Electrical connector;

[0059] 40, Protection assembly; 41, Protective member; 411, First protection structure; 411a, Crease; 411b, Bent portion; 411c, First card slot; 412, Second protection structure; 413, Third protection structure; 412a, Second card slot;

[0060] 42, Mounting member; 421, First connection structure; 421a, First clamping portion; 421b, Riveting portion; 422, Second connection structure; 4221, First clamping groove; 422a, Second clamping portion; 422b, Buckle portion; 423, Third connection structure; 4231, Second clamping groove. Detailed implementation mode

[0061] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application.

[0062] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

[0063] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0064] In this application, unless otherwise clearly specified and defined, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power 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 multiple fields such as industrial equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also continuously increasing.

[0066] As an energy storage system for electric vehicles, high-voltage connectors are required inside the battery device to connect the current. To ensure the high energy density and overcurrent safety of the battery device, in addition to installing high-voltage connectors in a limited space, it is also necessary to meet the safety protection of the high-voltage connectors and the surrounding interfaces. In related technologies, the form of wrapping with wear-resistant network tubes and foams is mainly used to achieve the protection of high-voltage connectors within the limit interface. However, the protection of the combination of wear-resistant network tubes and foams is easily pierced by sharp interfaces, and the specific installation and protection positions are prone to deviation when manually winding the wear-resistant network tubes and foams, resulting in the failure of the insulation protection of the high-voltage connectors.

[0067] Based on the above considerations, in order to solve the problem that the insulation protection of the electrical connectors of the battery device using the method of wrapping with wear-resistant network tubes and foams is prone to failure, a battery device is designed. By using a protection component for insulation protection inside the box body component of the battery device, the installation part of the protection component is connected to the box body component, so that the protection part of the protection component can be separately arranged between the electrical connector and the first beam body and / or the second beam body of the box body component; the protection part is used for separating and protecting to reduce the probability of short circuit, and the separated setting of the protection part can reduce the probability of forming contact with the electrical connector, so that the probability of the protection part being punctured can be effectively reduced, that is, the probability of the protection part being used to separate and protect the insulation protection failure of the box body component and the electrical connector is relatively low.

[0068] The battery cell disclosed in the embodiments of the present application can be used in an electrical device that uses a battery device as a power source or various energy storage systems that use a battery device as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric aircraft toy, etc., and the spacecraft can include an airplane, a rocket, a space shuttle, a spaceship, etc.

[0069] For the convenience of description in the following embodiments, a vehicle 1000, which is an electrical device in an embodiment of the present application, is taken as an example for illustration.

[0070] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, an extended-range electric vehicle, etc. A battery device 100 is disposed inside the vehicle 1000, and the battery device 100 can be disposed at the bottom, the head, or the tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000. For example, the battery device 100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, for the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0071] In some embodiments of the present application, the battery device 100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0072] Please refer to Figure 2 , Figure 2 which is an exploded view of the battery device 100 provided in some embodiments of the present application. The battery device 100 mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include a plurality of battery cells 20, and the plurality of battery cells 20 are connected in series, parallel, or in a hybrid connection through a busbar component.

[0073] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells 20.

[0074] As an example, the battery cell assembly can be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells 20 to form an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells 20 with cable ties.

[0075] In some embodiments, the battery device may be a battery pack, which includes a box body assembly 10 and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body assembly 10.

[0076] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body assembly 10 by fixing the battery module in the box body assembly 10.

[0077] As an example, the battery cell assembly may also be accommodated in the box body assembly 10 by directly fixing a plurality of battery cells 20 to the box body assembly 10.

[0078] As an example, the box body assembly 10 may include a first box body 11 and a second box body 12. The first box body 11 and the second box body 12 are snapped together so that a closed space is formed inside the box body assembly 10 to accommodate the battery cell assembly. Here, "closed" means covered or closed, which may be sealed or non-sealed. The first box body 11 may be a top cover or a bottom plate.

[0079] As an example, the box body assembly 10 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame so that a closed space is formed inside the box body assembly 10 to accommodate the battery cell assembly.

[0080] In some embodiments, the box body assembly 10 may be part of the chassis structure of the vehicle 1000. For example, a part of the box body assembly 10 may become at least a part of the floor of the vehicle 1000, or a part of the box body assembly 10 may become at least a part of the cross beam and longitudinal beam of the vehicle 1000.

[0081] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using battery cells 20, such as mobile phones, portable devices, laptop computers, battery cars, electric toys, electric tools, vehicles, ships, and spacecrafts, etc. For example, spacecrafts include airplanes, rockets, space shuttles, and spaceships, etc.

[0082] In the embodiments of the present application, the battery cell 20 may be a secondary battery, which refers to a battery cell 20 that can activate the active material by charging after discharging.

[0083] The battery cell 20 may be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium-metal battery, a sodium-metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-metal hydride battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present application do not limit this.

[0084] According to some embodiments of the present application, refer to Figures 2 to 5, embodiments of the present application provide a battery device 100, including battery cells 20, electrical connectors 30, a housing assembly 10, and a protection assembly 40; the electrical connectors 30 are electrically connected to the battery cells 20, an accommodation cavity 101 is formed inside the housing assembly 10, and the battery cells 20 and the electrical connectors 30 are accommodated in the accommodation cavity 101; the protection assembly 40 includes a protection member 41 and a mounting member 42, the protection member 41 is connected to the mounting member 42, and the mounting member 42 is connected to the housing assembly 10; wherein, the housing assembly 10 includes a first beam body 110 and a second beam body 120, and the first beam body 110 is connected to the second beam body 120; the protection member 41 includes a first protection structure 411, and the first protection structure 411 is separately disposed between the connection of the first beam body 110 and the second beam body 120 and the electrical connectors 30; and / or, the first protection structure 411 is separately disposed between at least one of the first beam body 110 and the second beam body 120 and the electrical connectors 30.

[0085] The housing assembly 10 refers to a box structure for accommodating and assembling the battery cells 20. Optionally, the housing assembly 10 includes, but is not limited to, a beam structure, a plate structure, a bracket structure, etc. The main part of the housing assembly 10 can be formed by enclosing with the beam structure and the plate structure, and the plate structure can be disposed on the beam structure or the plate structure and is used to support and install various components.

[0086] The housing assembly 10 includes a first beam body 110 and a second beam body 120; wherein, the first beam body 110 can be, but is not limited to, a profile beam, a rolled beam, etc.; the first beam body 110 can be any beam body on the housing assembly 10, for example, a side beam of the housing assembly 10, or an internal beam body of the housing assembly 10, etc.

[0087] Similarly, the second beam body 120 can be, but is not limited to, a profile beam, a rolled beam, etc. The second beam body 120 can be any beam body on the housing assembly 10, for example, a side beam of the housing assembly 10, or an internal beam body of the housing assembly 10, etc.

[0088] Exemplarily, in some embodiments, both the first beam body 110 and the second beam body 120 can be side beam structures of the housing assembly 10; the first beam body 110 and the second beam body 120 are connected at the ends, for example, the ends of the first beam body 110 and the ends of the second beam body 120 can be integrally formed by welding.

[0089] The electrical connectors 30 can refer to conductive structures for electrically connecting the battery cells 20; optionally, the electrical connectors 30 can be, but are not limited to, busbars or wire harnesses made of materials with good electrical conductivity such as copper busbars, silver busbars, gold busbars, aluminum busbars, or alloy busbars. An insulating coating, an insulating thermoplastic sleeve, etc. can be provided on the outer surface of the electrical connectors 30.

[0090] The number of the electrical connectors 30 can be one or more, and one or more electrical connectors 30 can be distributed anywhere within the box body assembly 10. Exemplarily, in some embodiments, the electrical connectors 30 can be arranged close to the outermost side beam structure of the box body assembly 10, for example, arranged along the length direction of the side beam structure of the box body assembly 10; in this way, the influence of the electrical connectors 30 on the accommodation cavity 101 within the box body assembly 10 can be reduced, and the space utilization efficiency of the accommodation cavity 101 within the box body assembly 10 can be improved.

[0091] Exemplarily, in some embodiments, the box body assembly 10 can include a top cover, a frame, and a bottom plate, the top cover and the bottom plate are respectively connected to the frame, and the electrical connector 30 can be a copper busbar; wherein, the copper busbar can be routed inside the frame along the wall surface of the frame, and the copper busbar forms an electrical connection with the battery cell 20.

[0092] The protection assembly 40 refers to a combination of multiple components used to protect the electrical connectors 30; the protection assembly 40 is used to form isolation protection for the electrical connectors 30 to reduce the probability that the burrs on the surface of the box body assembly 10 scratch the insulation structure on the surface of the electrical connectors 30 due to the electrical connectors 30 coming into contact with the box body assembly 10, resulting in a short circuit. Among them, the number of the protection assemblies 40 can be one group, two groups, or any number of groups more than two groups; the protection assembly 40 can be arranged between the electrical connectors 30 and the box body assembly 10, for example, it can be arranged between the frame of the box body assembly 10 and the electrical connectors 30, or arranged between the end of the beam structure of the box body assembly 10 and the electrical connectors 30, etc.

[0093] The protection assembly 40 includes a protection member 41 and a mounting member 42; wherein, the protection member 41 is used to achieve the function of separation protection. Optionally, the protection member 41 can have insulation properties, and the material of the protection member 41 can be selected from materials such as polytetrafluoroethylene, epoxy resin, phenolic resin, etc.; or, the protection member 41 can be made of metal or alloy material, and an insulation structure such as an insulation coating can be provided on the surface of the protection member 41 to enhance the insulation protection effect. The protection member 41 can be structures such as a protection plate, a protection block, a protection rod, etc.

[0094] The protection member 41 can be arranged between the box body assembly 10 and the electrical connectors 30; it should be understood that the protection member 41 can be arranged between the electrical connectors 30 and the wall surface of the box body assembly 10 on the closest side, or the protection member 41 can be arranged between the electrical connectors 30 and the beam structure of the box body assembly 10 closest to it, so as to achieve the insulation protection between the electrical connectors 30 and the box body assembly 10, and to reduce the probability of contact and scratching between the surface of the box body assembly 10 and the electrical connectors 30.

[0095] The protective member 41 can be connected to the box body assembly 10 through the mounting member 42; wherein, the mounting member 42 refers to a structure for fixedly mounting the protective member 41 on the box body assembly 10; the mounting member 42 can be connected to structures such as the frame, top cover, bottom plate, and beam body of the box body assembly 10, but is not limited thereto.

[0096] Optionally, the mounting member 42 includes, but is not limited to, structures such as bolts, screws, rivets, buckles, and clamping blocks; the mounting member 42 can be locked to the frame, top cover, or bottom plate of the box body assembly 10, or the mounting member 42 can also be clamped to the end of the beam body in the box body assembly 10 to achieve connection and assembly.

[0097] The number of the mounting members 42 can be one, two, or any number more than two; the mounting members 42 can be connected to the protective member 41 by means of locking connection, clamping connection, hot melt connection, integral molding, etc. Exemplarily, in some embodiments, one end of the mounting member 42 can be clamped on the protective member 41, and the other end of the mounting member 42 can be connected to the box body assembly 10.

[0098] The mounting member 42 can be arranged at any position of the protective member 41. By fixedly assembling the mounting member 42 at the corresponding position of the box body assembly 10, the protective member 41 is arranged between the electrical connector 30 and the box body assembly 10, and the corresponding parts of the electrical connector 30 and the box body assembly 10 are separated.

[0099] Wherein, the protective member 41 includes a first protective structure 411. The first protective structure 411 can be a protective structure for separating and protecting the electrical connector 30 to reduce the scratching of the electrical connector 30 caused by the burrs on the surfaces of the first beam body 110 and the second beam body 120. Optionally, the first protective structure 411 can have better insulation; or, an insulating layer can be provided on the surface of the first protective structure 411 to enhance the insulation protection ability of the first protective structure 411. Exemplarily, the first protective structure 411 can be, but is not limited to, structures such as a protective plate, a protective block, and a protective cover; optionally, the first protective structure 411 can be, but is not limited to, a metal structure, an alloy structure, a composite structure, an injection molding structure, etc.

[0100] The first protection structure 411 is separately arranged between the connection of the first beam body 110 and the second beam body 120 and the electrical connector 30; that is, when the mounting member 42 provided on the first protection structure 411 is fixedly connected to the box body assembly 10 (for example, the mounting member 42 is connected to the first beam body 110 and the second beam body 120), the first protection structure 411 can form a fixed assembly relative to the box body assembly 10, and the first protection structure 411 is located between the connection of the first beam body 110 and the second beam body 120 and the electrical connector 30. In this way, the first protection structure 411 can achieve the separation protection of the connection of the first beam body 110 and the second beam body 120. When there are metal particles in the internal cavities of the first beam body 110 and the second beam body 120, the probability that the metal particles overflow from the connection of the first beam body 110 and the second beam body 120 and cause a short circuit with the electrical connector 30 can be effectively reduced.

[0101] And / or, the first protection structure 411 is separately arranged between the first beam body 110 and the electrical connector 30; that is, when the mounting member 42 provided on the first protection structure 411 is fixedly connected to the box body assembly 10 (for example, the mounting member 42 is connected to the first beam body 110), the first protection structure 411 can form a fixed assembly relative to the box body assembly 10, and the first protection structure 411 is located between the first beam body 110 and the electrical connector 30. In this way, the first protection structure 411 can achieve the separation protection of at least part of the first beam body 110.

[0102] And / or, the first protection structure 411 is separately arranged between the second beam body 120 and the electrical connector 30; that is, when the mounting member 42 provided on the first protection structure 411 is fixedly connected to the box body assembly 10 (for example, the mounting member 42 is connected to the second beam body 120), the first protection structure 411 can form a fixed assembly relative to the box body assembly 10, and the first protection structure 411 is located between the second beam body 120 and the electrical connector 30. In this way, the first protection structure 411 can achieve the separation protection of at least part of the second beam body 120.

[0103] The battery device 100 provided by the embodiment of the present application connects the mounting member 42 of the protection component 40 to the box body component 10, so that the first protection structure 411 of the protection member 41 is separately arranged between the connection of the first beam body 110 and the second beam body 120 and the electrical connection member 30, and / or separately arranged between at least one of the first beam body 110 and the second beam body 120 and the electrical connection member 30 for insulation protection; by the way that the protection member 41 is separately arranged between the electrical connection member 30 and the box body component 10, the influence of the electrical connection member 30 being punctured by a sharp interface can be effectively reduced, and the assembly is made more convenient and accurate by connecting the mounting member 42 to the box body component 10; thus, the insulation protection effect of the protection member 41 on the first beam body 110 and the second beam body 120 of the box body component 10 can be effectively improved, the probability of insulation failure of the protection member 41 is relatively low, and the probability of short circuit between the first beam body 110 and the second beam body 120 and the electrical connection member 30 can be effectively reduced.

[0104] Please refer to Figures 4 to 7 , in some embodiments, the mounting member 42 includes a first connection structure 421, and the first connection structure 421 is connected to the first protection structure 411; the first connection structure 421 is connected to at least one of the first beam body 110 and the second beam body 120.

[0105] The first connection structure 421 may refer to a structure for forming a connection and fixation with at least one of the first beam body 110 and the second beam body 120.

[0106] Optionally, the first connection structure 421 may be, but is not limited to, fasteners such as bolts, screws, and rivets; or, the first connection structure 421 may be an adhesive layer, an adhesive block, etc. with adhesiveness. The number of the first connection structures 421 may be one or any number more than one. The first connection structure 421 is used to connect to the first protection structure 411 and at least one of the first beam body 110 and the second beam body 120 to fix and assemble the first protection structure 411 on at least one of the first beam body 110 and the second beam body 120.

[0107] Exemplarily, in some embodiments, the first connection structure 421 may be a rivet, and the rivet may be snap-fitted and fixed on the first protection structure 411; wherein, the first connection structure 421 may be riveted on the first beam body 110; or, the first connection structure 421 may be riveted on the second beam body 120; or, the number of the first connection structures 421 is multiple, and a part of the multiple first connection structures 421 is riveted on the first beam body 110, and the other part of the multiple connection structures is riveted on the second beam body 120 to realize the fixed assembly of the first protection structure 411.

[0108] Alternatively, in some other embodiments, the first connection structure 421 may be an adhesive layer, and the adhesive layer is bonded to the first protective structure 411. Among them, the adhesive layer may be bonded to the first beam body 110 to achieve the bonding and fixing of the first protective structure 411 and the first beam body 110. Or, the adhesive layer may be bonded to the second beam body 120 to achieve the bonding and fixing of the first protective structure 411 and the second beam body 120. Or, the number of the adhesive layers may be multiple, and a part of the multiple adhesive layers may be bonded to the first beam body 110, and another part of the multiple adhesive layers may be bonded to the second beam body 120 to achieve the fixed assembly of the first protective structure 411.

[0109] With such an arrangement, the first connection structure 421 can be connected to at least one of the first beam body 110 and the second beam body 120 to achieve the purpose of fixedly assembling the first protective structure 411.

[0110] Please refer to Figures 4 to 7 , in some embodiments, a first connection hole (not shown in the figure) is provided on the first beam body 110, and a second connection hole (not shown in the figure) is provided on the second beam body 120. The number of the first connection structures 421 is multiple, and the multiple first connection structures 421 are connected to at least one of the first connection hole and the second connection hole.

[0111] A first connection hole is provided on the first beam body 110. The first connection hole refers to a hole structure for connecting and fixing the first connection structure 421. Optionally, the first connection hole may be a threaded hole, and the first connection structure 421 may be a screw, and the screw can be locked in the threaded hole to achieve the purpose of locking the first protective structure 411 to the first beam body 110. Or, the first connection hole may be a riveting hole, and the first connection structure 421 may be a rivet, and the rivet is riveted in the first connection hole to achieve the purpose of fixedly assembling the first protective structure 411 on the first beam body 110.

[0112] A second connection hole is provided on the second beam body 120. The second connection hole refers to a hole structure for connecting and fixing the first connection structure 421. Optionally, the second connection hole may be a threaded hole, and the first connection structure 421 may be a screw, and the screw can be locked in the threaded hole to achieve the purpose of locking the first protective structure 411 to the second beam body 120. Or, the second connection hole may be a riveting hole, and the first connection structure 421 may be a rivet, and the rivet is riveted in the second connection hole to achieve the purpose of fixedly assembling the first protective structure 411 on the second beam body 120.

[0113] The number of the first connection structures 421 is multiple. Optionally, the number of the first connection structures 421 may be two, three or more than three.

[0114] In the first implementation manner, multiple first connection structures 421 can all be connected to the first connection hole, so as to achieve the purpose of fixedly assembling the first protection structure 411 on the first beam body 110.

[0115] In the second implementation manner, multiple first connection structures 421 can all be connected to the second connection hole, so as to achieve the purpose of fixedly assembling the first protection structure 411 on the second beam body 120.

[0116] In the third implementation manner, a part of multiple first connection structures 421 can be connected to the first connection hole, and another part of multiple first connection structures 421 can be connected to the second connection hole, so that the first protection structure 411 is located at the connection between the first beam body 110 and the second beam body 120, and the first protection structure 411 can insulatively separate the connection between the first beam body 110 and the second beam body 120 from the electrical connector 30.

[0117] With such a setting, a part of multiple first connection structures 421 is connected to the first connection hole of the first beam body 110, and another part of multiple first connection structures 421 is connected to the second connection hole of the second beam body 120, so that the first protection structure 411 is connected to the first beam body 110 and / or the second beam body 120 through the first connection structures 421, thereby improving the assembly stability of the first protection structure 411.

[0118] Please refer to Figures 4 to 7 , in some embodiments, the first connection structure 421 includes a connected first clamping portion 421a and riveting portion 421b. The first clamping portion 421a is connected to the first protection structure 411, and the riveting portion 421b is riveted to at least one of the first beam body 110 and the second beam body 120.

[0119] The first connection structure 421 includes a first clamping portion 421a and a riveting portion 421b; wherein, the first clamping portion 421a is used to form a connection with the first protection structure 411. Optionally, the first clamping portion 421a can be but is not limited to structures such as a clamping block, a clamping post, a clamping bracket, etc.

[0120] Exemplarily, in some implementation manners, the first clamping portion 421a can be a circular clamping block, and a clamping groove is correspondingly formed on the first protection structure 411; the clamping block is clamped into the clamping groove of the first protection structure 411, so as to achieve the purpose of connecting the first connection structure 421 to the first protection structure 411.

[0121] The riveting portion 421b refers to the part of the first connection structure 421 for forming riveting fixation; the riveting portion 421b can be riveted into the first connection hole of the first beam body 110, and the riveting portion 421b can also be riveted into the second connection hole of the second beam body 120.

[0122] In some embodiments, the first connection structure 421 may be a rod-shaped structure, the top of the rod-shaped structure is a block-shaped first clamping portion 421a, and the body and bottom of the rod-shaped structure are riveted portions 421b.

[0123] In this way, the first clamping portion 421a of the first connecting structure 421 can be connected to the first protective structure 411. At the same time, the riveted portion 421b of the first connecting structure 421 can be riveted to at least one of the first beam body 110 and the second beam body 120, so that the first protective structure 411 can be connected to at least one of the first beam body 110 and the second beam body 120.

[0124] Please refer to Figures 4 to 6 In some embodiments, at least one fold 411a is provided on the first protective structure 411, and the fold 411a separates the first protective structure 411 into a plurality of bending portions 411b; the bending portions 411b are configured to be able to bend around the fold 411a.

[0125] It can be understood that the crease 411a refers to a concave mark formed on the first protective structure 411; in this way, the first protective structure 411 can form a plurality of bending portions 411b on opposite sides of the crease 411a, and the bending portions 411b can be folded to a certain extent around the crease 411a, so that the first protective structure 411 with a planar structure can be folded to form a three-dimensional shape such as a folded surface structure.

[0126] Optionally, one, two or more folds 411a may be provided on the first protective structure 411; when there are multiple folds 411a on the first protective structure 411, the multiple folds 411a may be provided in parallel, or at least two of the multiple folds 411a may be provided to intersect.

[0127] Exemplarily, in some embodiments, two parallel folds 411a may be provided on the first protective structure 411, so that the first protective structure 411 is separated by the two folds 411a to form three bent portions 411b; the two outermost bent portions 411b are folded around the corresponding folds 411a respectively, so that the planar first protective structure 411 can be folded to form a three-fold surface structure.

[0128] In this way, the first protective structure 411 can form multiple bending portions 411b through the fold 411a, and the multiple bending portions 411b can be bent around the corresponding fold 411a, so that the multiple bending portions 411b can be bent and deformed to adapt to the connection points inside the box assembly 10, thereby improving the convenience of assembling the first protective structure 411.

[0129] Please refer to Figures 4 to 6, in some embodiments, a plurality of first card slots 411c are formed in at least one bending portion 411b. The first card slots 411c are in snap-fit engagement with the first snap-engagement portions 421a, and the plurality of first card slots 411c are arranged at intervals in any direction in sequence.

[0130] Among them, the first card slot 411c refers to a slot structure formed in the bending portion 411b. The first card slot 411c is in snap-fit engagement with the first snap-engagement portion 421a. In this way, the first snap-engagement portion 421a can be snap-fitted into the first card slot 411c so that the first connection structure 421 is connected to the bending portion 411b.

[0131] A plurality of first card slots 411c are formed in at least one bending portion 411b. Optionally, a plurality of first card slots 411c can be formed in any one of the bending portions 411b; or, a plurality of first card slots 411c can be formed in at least two of the plurality of bending portions 411b.

[0132] Exemplarily, in some embodiments, when two parallel creases 411a are provided on the first protection structure 411, the first protection structure 411 is separated by the two creases 411a to form three bending portions 411b. First card slots 411c can be provided on two bending portions on the opposite sides, and no first card slot 411c is provided on the other bending portion located in the middle. In this way, the two bending portions on the opposite sides can be assembled with the first beam body 110 and / or the second beam body 120 through the first connection structure 421 to realize the assembly of the first protection structure 411.

[0133] A plurality of first card slots 411c can be arranged in any direction on the bending portion 411b. In this way, the first snap-engagement portion 421a of the first connection structure 421 can be snap-fitted into any one of the first card slots 411c, so that the relative position of the first connection structure 421 and the first protection structure 411 changes. Furthermore, when the first connection structure 421 is assembled to the first beam body 110 and / or the second beam body 120, the relative position of the first protection structure 411 and the first beam body 110 and / or the second beam body 120 changes, so as to realize the adjustment of the installation position of the first protection structure 411.

[0134] With such a setting, the first snap-engagement portion 421a can be snap-engaged in the first card slot 411c, and the first snap-engagement portion 421a can be snap-fitted in any one of the plurality of first card slots 411c to realize the adjustment of the assembly position.

[0135] Please refer to Figures 4 to 6 , in some embodiments, the first protection structure 411 has elasticity.

[0136] In this embodiment, the first protective structure 411 is set to be elastic; in this way, the first protective structure 411 can be bent to a certain extent to adapt to the specific shape of the connection part.

[0137] Optionally, the first protective structure 411 can be a plate structure or a sheet structure with elasticity; exemplarily, the first protective structure 411 can be, but is not limited to, a plexiglass plate, a fluororubber plate, etc.

[0138] With such a setting, the first protective structure 411 can be bent and deformed to a certain extent according to its own elasticity, so that it can fit better with the connection part of the box body assembly 10, thereby improving the convenience of assembling the first protective structure 411.

[0139] Please refer to Figures 4 to 11 , in some embodiments, the number of the first beam bodies 110 and the second beam bodies 120 is multiple, and the multiple first beam bodies 110 and the multiple second beam bodies 120 are connected end to end in sequence to form a frame 102; the box body assembly 10 further includes a third beam body 130, the third beam body 130 is arranged in the frame 102, and opposite ends of the third beam body 130 are connected to the first beam body 110; at least one end of the third beam body 130 is provided with an avoidance groove 1301, the first beam body 110 encloses the avoidance groove 1301 and forms an avoidance space 103, and the electrical connector 30 passes through the avoidance space 103; the protective member 41 further includes a second protective structure 412, at least a part of the second protective structure 412 is arranged in the avoidance space 103 and is used for separating the electrical connector 30 and at least a part of the inner wall surface of the avoidance groove 1301; and / or, a part of the first protective structure 411 extends into the avoidance space 103 and is used for separating the electrical connector 30 and at least a part of the inner wall surface of the avoidance groove 1301.

[0140] The multiple first beam bodies 110 and the multiple second beam bodies 120 are connected end to end in sequence to form a frame 102; exemplarily, in some embodiments, the number of the first beam bodies 110 and the second beam bodies 120 can be two respectively, and the two first beam bodies 110 and the two second beam bodies 120 can be connected end to end in sequence and form a rectangular frame 102.

[0141] The box body assembly 10 further includes a third beam body 130, the third beam body 130 can be, but is not limited to, a profile beam, a roll-pressed beam, etc.; the third beam body 130 can be any beam body on the box body assembly 10, for example, a beam body inside the box body assembly 10, etc.

[0142] At least one end of the third beam body 130 includes an avoidance groove 1301 arranged thereon; it can be understood that when the end of the third beam body 130 forms a connection with the first beam body 110, the first beam body 110 can enclose the avoidance groove 1301 and form an avoidance space 103; in this way, the electrical connector 30 can pass through the avoidance space 103 and be arranged along the first beam body 110.

[0143] The protective member 41 further includes a second protective structure 412; the second protective structure 412 refers to a protective structure that is used to be disposed between the inner wall surface of the avoidance groove 1301 and the electrical connector 30 to reduce the risk of the burrs on the inner wall surface of the avoidance groove 1301 scratching the electrical connector 30. Optionally, the second protective structure 412 may have preferably insulating properties; alternatively, an insulating layer may be provided on the surface of the second protective structure 412 to enhance the insulating protection ability of the second protective structure 412. Exemplarily, the second protective structure 412 may be, but is not limited to, structures such as a protective plate, a protective block, a protective cover, etc.; optionally, the second protective structure 412 may be, but is not limited to, a metal structure, an alloy structure, a composite structure, an injection molding structure, etc.

[0144] The second protective structure 412 is disposed in the avoidance groove 1301, and the second protective structure 412 is located between at least a part of the inner wall surface of the avoidance groove 1301 and the electrical connector 30. Thus, the second protective structure 412 can be used to form an insulating separation for at least a part of the inner wall surface of the avoidance groove 1301 to reduce the probability of a short circuit occurring between the electrical connector 30 and the third beam body 130.

[0145] Optionally, the second protective structure 412 can form an insulating separation for a part of the inner wall surface of the avoidance groove 1301. For example, it can separate the side wall surface of the avoidance groove that is disposed opposite to the surface of the first beam body; or, the second protective structure 412 can cover the entire inner wall surface of the avoidance groove 1301 to further enhance the separation and protection ability for the electrical connector 30 and the inner wall surface of the avoidance groove 1301.

[0146] A part of the first protective structure 411 extends into the avoidance space 103, and the first protective structure 411 can separate the electrical connector 30 and a part of the inner wall surface of the avoidance groove 1301; at the same time, the first protective structure 411 is connected to the first beam body 110 through the first connection structure 421. Thus, the first protective structure 411 can form an insulating protection for both the first beam body 110 and at least a part of the inner wall surface of the avoidance groove 1301.

[0147] Exemplarily, in some embodiments, two creases 411a may be provided on the first protective structure 411. The two creases 411a divide the first protective structure 411 to form three bent portions 411b. One of the bent portions 411b may be connected to the first beam body 110 through the first connection structure 421 and is used to form insulation protection for the first beam body 110. The other two bent portions 411b may be arranged by bending towards the inside of the avoidance groove 1301, so that one of the bent portions 411b at the end can cover part of the inner wall surface of the avoidance groove 1301, and thus this bent portion 411b can form insulation separation between the electrical connector 30 and part of the inner wall surface of the avoidance groove 1301.

[0148] With such an arrangement, the inner wall surface of the avoidance groove 1301 of the third beam body 130 is insulated and separated and protected by the first protective structure 411 and / or the second protective structure 412, so as to reduce the probability of short circuit between the electrical connector 30 and the third beam body 130.

[0149] Please refer to Figure 4 、 Figures 8 to 11 , in some embodiments, at least one end of the third beam body 130 includes a first end portion 131, a second end portion 132, and a third end portion 133 arranged in sequence. The first end portion 131 is connected to the first beam body 110. An avoidance groove 1301 is formed between the second end portion 132 and the third end portion 133. The second end portion 132, the third end portion 133, and the first beam body 110 enclose an avoidance space 103. A part of the first protective structure 411 extends between the second end portion 132 and the electrical connector 30 and is used to separate the second end portion 132 and the electrical connector 30. The second protective structure 412 is arranged between the third end portion 133 and the electrical connector 30 and is used to separate the third end portion 133 and the electrical connector 30. The mounting member 42 includes a second connection structure 422. The second connection structure 422 is connected to the second protective structure 412. The second connection structure 422 is connected to the third end portion 133.

[0150] At least one end of the third beam body 130 includes a first end portion 131, a second end portion 132, and a third end portion 133 arranged in sequence; it can be understood that the first end portion 131, the second end portion 132, and the third end portion 133 refer to three parts formed by the ends of one end of the third beam body 130 along its own length direction.

[0151] The first end portion 131 may be connected to the first beam body 110.

[0152] The second end portion 132 refers to an intermediate transition portion that intersects with the first end portion 131 and the third end portion 133 and is used to connect the first end portion 131 and the third end portion 133. Exemplarily, the surface of the second end portion 132 may be perpendicular to the surface of the first end portion 131 and the surface of the third end portion 133 respectively.

[0153] The third end portion 133 refers to the portion that forms a gap with the first beam body 110. In some embodiments, the third end portion 133 may be parallel to the first end portion 131.

[0154] In this way, the second end portion 132, the third end portion 133, and the first beam body 110 can enclose an avoidance space 103, so that the electrical connector 30 can be disposed through the avoidance space 103.

[0155] Wherein, the second end portion 132 and the third end portion 133 can enclose an avoidance groove 1301, that is, the second end portion 132 and the third end portion 133 can be two groove inner wall surfaces of the avoidance groove 1301. A part of the first protection structure 411 extends between the second end portion 132 and the electrical connector 30. In this way, the first protection structure 411 can form a separation protection for the electrical connector 30 and the second end portion 132. The second protection structure 412 is disposed between the third end portion 133 and the electrical connector 30. In this way, the second protection structure 412 can form a separation protection for the electrical connector 30 and the third end portion 133.

[0156] The second connection structure 422 may refer to a structure for forming a connection and fixation with the third end portion 133 of the third beam body 130.

[0157] Optionally, the second connection structure 422 may be, but is not limited to, a clamping structure such as a snap or a clamping block, and is clamped on the wall surface at the third end portion 133; or, the second connection structure 422 may be, but is not limited to, a plugging structure such as a plug or a pin, and is inserted into the cavity of the third beam body 130 from the third end portion 133 by the plugging structure.

[0158] The second connection structure 422 is connected to the second protection structure 412; optionally, the second connection structure 422 can be connected to the second protection structure 412 by means of clamping, plugging, screwing, bonding, integral molding, etc. Exemplarily, in some embodiments, the second connection structure 422 can form a clamping fixation with the second protection structure 412.

[0159] With such a setting, the second protection structure 412 can be connected to the third end portion 133 by the second connection structure 422, and the second protection structure 412 is disposed in a separated manner between the third end portion 133 and the electrical connector 30. At the same time, a part of the first protection structure 411 extends between the second end portion 132 and the electrical connector 30. In this way, effective isolation protection can be formed for the electrical connector 30; the probability that the third end portion 133 is in direct contact with the electrical connector 30 is relatively low. Therefore, the probability that the third end portion 133 scratches the electrical connector 30 and causes the surface insulation layer to be damaged and short-circuited is also relatively low.

[0160] Please refer toFigure 4 , Figures 8 to 11 , in some embodiments, a cavity (not shown in the figures) is formed inside the third beam body 130, and the cavity penetrates from the third end 133 to the outside; a first clamping groove 4221 is formed on the second connection structure 422, and the second connection structure 422 is clamped to the third end 133 so that the side wall of the third beam body 130 is clamped inside the first clamping groove 4221.

[0161] A first clamping groove 4221 is formed on the second connection structure 422; optionally, the second connection structure 422 may be a block structure, and the first clamping groove 4221 is a groove structure formed at one end of the block structure. At the same time, the cavity inside the third beam body 130 can penetrate from the third end 133 to the outside, that is, a part of the second connection structure 422 can be inserted into the cavity from the third end 133; in this way, the second connection structure 422 in the form of a block structure can be clamped on the side wall of the third beam body 130 through the first clamping groove 4221 from the third end 133.

[0162] At the same time, the second connection structure 422 forms a connection with the second protection structure 412; in this way, the second protection structure 412 can be fixedly assembled to the third end 133 through the second connection structure 422, so that the second protection structure 412 can insulate and separate the third end 133 and the electrical connector 30.

[0163] With such a setting, the second connection structure 422 can be clamped to the third end 133 through the first clamping groove 4221 to realize the assembly of the second protection structure 412.

[0164] Please refer to Figure 4 , Figures 8 to 11 , in some embodiments, the number of the second connection structures 422 is at least two, and at least two side walls of the third beam body 130 at the third end 133 are respectively clamped inside the first clamping grooves 4221 of the corresponding second connection structures 422.

[0165] In this embodiment, the number of the second connection structures 422 can be at least two, for example, it can be two, three or any number more than three. Multiple second connection structures 422 respectively form connections with the second protection structure 412.

[0166] Exemplarily, in some embodiments, the number of the second connection structures 422 can be two, and the two second connection structures 422 are oppositely arranged on the same side of the second protection structure 412; in this way, the two second connection structures 422 can be respectively clamped on two different wall surfaces of the second end 132, for example, two oppositely arranged wall surfaces.

[0167] With such a setting, a plurality of second connection structures 422 are clamped to at least two side walls of the third beam body 130 to improve the assembly stability of the second protection structure 412.

[0168] Please refer to Figures 8 to 11 , in some embodiments, the second connection structure 422 includes a connected second clamping portion 422a and a buckle portion 422b. The second clamping portion 422a is connected to the second protection structure 412, and a first clamping groove 4221 is formed in the buckle portion 422b.

[0169] The second connection structure 422 includes a second clamping portion 422a and a buckle portion 422b; wherein, the second clamping portion 422a is used to form a connection with the second protection structure 412. Optionally, the second clamping portion 422a can be, but is not limited to, structures such as a clamping block, a clamping post, a clamping bracket, etc.

[0170] Exemplarily, in some embodiments, the second clamping portion 422a can be a circular clamping block, and a clamping groove is correspondingly formed in the second protection structure 412; the clamping block is clamped in the clamping groove of the second protection structure 412 to achieve the purpose of connecting the second connection structure 422 to the second protection structure 412.

[0171] The buckle portion 422b refers to the part of the first connection structure 421 that is used to be clamped to the second end portion 132; the buckle portion 422b can be in a block structure, and a first clamping groove 4221 is formed at one end of the block-shaped buckle portion 422b that faces away from the second clamping portion 422a; thus, the buckle portion 422b can be clamped to the side wall of the third beam body 130 from the third end portion 133 through the first clamping groove 4221, and the second clamping portion 422a forms a connection with the second protection structure 412 to achieve the fixed assembly of the second protection structure 412.

[0172] With such a setting, the second clamping portion 422a of the second connection structure 422 can form a connection with the second protection structure 412. At the same time, the buckle portion 422b of the second connection structure 422 can be clamped to the side wall of the third beam body 130 from the third end portion 133 through the first clamping groove 4221. Thus, the second protection structure 412 can be assembled to the third end portion 133 and used to insulate and separate the third end portion 133 and the electrical connector 30.

[0173] Please refer to Figures 8 to 11 , in some embodiments, a plurality of second clamping grooves 412a are formed in the second protection structure 412. The second clamping grooves 412a are in clamping fit with the second clamping portion 422a, and the plurality of second clamping grooves 412a are arranged at intervals in any direction in sequence.

[0174] Among them, the second card slot 412a refers to the slot structure formed on the second protection structure 412; the second card slot 412a is in snap-fit cooperation with the second snap-connection portion 422a. In this way, the second snap-connection portion 422a can be snap-fitted into the second card slot 412a so that the second connection structure 422 is connected to the second protection structure 412.

[0175] A plurality of second card slots 412a can be arranged on the second protection structure 412 in any direction; in this way, the second snap-connection portion 422a of the second connection structure 422 can be snap-fitted into any one of the second card slots 412a, so that the relative position between the second connection structure 422 and the second protection structure 412 changes. Furthermore, the second connection structure 422 is assembled to the third end portion 133, and the relative position between the second protection structure 412 and the third end portion 133 changes. In this way, the installation position of the second protection structure 412 can be adjusted.

[0176] With such a setting, the second snap-connection portion 422a can be snap-connected to the second card slot 412a, and the second snap-connection portion 422a can be snap-connected to any one of the plurality of second card slots 412a to adjust the assembly position.

[0177] Please refer to Figure 2 、 Figure 4 and Figure 12 , in some embodiments, the box body assembly 10 further includes a sheet metal part (not shown in the figure), the sheet metal part is arranged in the accommodation cavity 101; the protection part 41 further includes a third protection structure 413, the installation part 42 includes a third connection structure 423, the third protection structure 413 is connected to the third connection structure 423, the third connection structure 423 is connected to the sheet metal part, and the third protection structure 413 is arranged between the sheet metal part and the electrical connection part 30 and is used to separate the electrical connection part 30 and the sheet metal part.

[0178] The sheet metal part refers to a metal part manufactured by sheet metal processing technology; the sheet metal part generally has a thin plate-like structure. Therefore, the outer edge of the sheet metal part generally has a sharp edge structure.

[0179] The sheet metal part is arranged in the accommodation cavity 101; optionally, the sheet metal part can be connected to various structures such as the beam structure and the plate structure of the box body assembly 10 through fasteners such as bolts and screws; the sheet metal part is used for fixedly connecting the components inside the accommodation cavity 101.

[0180] Exemplarily, in some embodiments, the sheet metal part can be a sheet metal bracket, the sheet metal bracket can be arranged on the beam structure of the box body assembly 10, and the sheet metal bracket can be used for fixedly connecting the electrical components, structural components, etc. inside the box body assembly 10.

[0181] The protective member 41 includes a third protective structure 413; the third protective structure 413 refers to a structure with better insulation performance. Exemplarily, the third protective structure 413 can be, but is not limited to, structures such as a protective plate, a protective block, a protective cover, etc.

[0182] The mounting member 42 includes a third connection structure 423; the third connection structure 423 can refer to a fixing structure for forming a connection with a sheet metal part. Optionally, the third connection structure 423 can be, but is not limited to, a clamping structure such as a snap or a clamping block, and is clamped on the outer edge of the sheet metal part by using the clamping structure; alternatively, the third connection structure 423 can be, but is not limited to, a fastening structure such as a bolt, a screw, a rivet, etc., and is fixedly connected to the sheet metal part by using the fastening structure.

[0183] The third connection structure 423 is connected to the third protective structure 413; optionally, the third connection structure 423 can be connected to the third protective structure 413 by means of clamping, plugging, screwing, bonding, integral molding, etc. Exemplarily, in some embodiments, the third connection structure 423 can form a clamping fixation with the third protective structure 413.

[0184] With such a setting, the third connection structure 423 is connected to the sheet metal part and the third protective structure 413, so that the third protective structure 413 is located between the sheet metal part and the electrical connector 30. In this way, the insulation protection effect on the sheet metal part can be effectively improved, and the probability of the sharp edge of the sheet metal part scratching the electrical connector 30 can be effectively reduced.

[0185] Please refer to Figure 4 and Figure 12 , in some embodiments, the third connection structure 423 is provided with a second clamping groove 4231, and the third connection structure 423 is clamped on the outer edge of the sheet metal part through the second clamping groove 4231.

[0186] The third connection structure 423 is provided with a second clamping groove 4231; optionally, the third connection structure 423 can be a block structure, and the second clamping groove 4231 is a groove structure opened at one end of the block structure. In this way, the third connection structure 423 in the form of a block structure can be clamped on the outer edge of the sheet metal part through the second clamping groove 4231.

[0187] At the same time, the third connection structure 423 forms a connection with the third protective structure 413; in this way, the third protective structure 413 can be fixedly assembled on the outer edge of the sheet metal part through the third connection structure 423, so that the third protective structure 413 can insulate and separate the sheet metal part and the electrical connector 30.

[0188] With such a setting, the installation method of clamping the third protective structure 413 on the outer edge of the sheet metal part through the second clamping groove 4231 can effectively protect the outer edge of the sheet metal part.

[0189] Please refer to Figure 4 In some embodiments, the protective component 40 further includes a fixing member (not shown in the figure), which is disposed on the protective member 41 and connected to the electrical connector 30 .

[0190] The fixing part refers to a structural part used to connect and reinforce the electrical connector 30. Optionally, the fixing part includes but is not limited to a fixing block, a fixing bracket, a fixing sleeve and the like; the fixing part can be connected to the protective part 41 by screw connection, snap connection, plug connection and the like.

[0191] For example, in some embodiments, the fixing member may include a sleeve portion and a third clamping portion, the third clamping portion may be a block structure, and the third clamping portion is used to clamp onto the protective member 41; the sleeve portion may be a block structure, and the block structure is provided with a slot on one side away from the third clamping portion, and the electrical connector 30 may be clamped into the slot. In this way, the third clamping portion of the fixing member is clamped onto the protective member 41, and the sleeve portion of the fixing member is clamped onto the electrical connector 30, so that the connection reinforcement of the electrical connector 30 can be achieved.

[0192] It should be understood that when the protective member 41 includes the first protective structure 411 and the second protective structure 412 , the fixing member may be connected to any one of the first protective structure 411 and the second protective structure 412 .

[0193] In this configuration, while the protective member 41 is connected to the box assembly 10 through the mounting member 42 , the fixing member provided on the protective member 41 can also be connected to the electrical connector 30 , thereby reinforcing the electrical connector 30 and improving the stability of the electrical connector 30 .

[0194] Next, the battery device 100 provided in the present application will be further described according to specific implementations.

[0195] Please refer to Figures 2 to 11 In this embodiment, the battery device 100 includes a battery cell 20, an electrical connector 30, a box assembly 10 and a protective assembly 40. The box assembly 10 includes two first beams 110 and two second beams 120, which are connected end to end to form a frame 102. The box assembly 10 also includes a third beam 130, at least one end of which includes a first end 131, a second end 132 and a third end 133, which are arranged in sequence. The first end 131 is connected to the first beam 110, and the second end 132, the third end 133 and the first beam 110 are enclosed to form an avoidance space 103.

[0196] The electrical connector 30 may be a copper wire row, and the copper wire row may be routed along the inner wall of the frame 102 to improve the space utilization inside the box assembly 10 .

[0197] The protection component 40 includes a protection part 41 and a mounting part 42; wherein, the protection part 41 includes a first protection structure 411 and a second protection structure 412. There are two parallel creases 411a on the first protection structure 411, and the two creases 411a divide the first protection structure 411 to form three bending parts 411b; any multiple of the bending parts 411b are provided with first clamping grooves 411c. The second protection structure 412 can be a flat insulating structure, and a second clamping groove 412a is provided on the second protection structure 412.

[0198] The mounting part 42 includes a first connection structure 421 and a second connection structure 422; wherein, the first connection structure 421 includes a connected first clamping part 421a and a riveting part 421b, the first clamping part 421a is in clamping fit with the first clamping groove 411c, and the riveting part 421b is riveted to at least one of the first beam body 110 and the second beam body 120. The second connection structure 422 includes a connected second clamping part 422a and a buckling part 422b, the second clamping part 422a is in clamping fit with the second clamping groove 412a, and a first clamping groove 4221 is provided on the buckling part 422b.

[0199] In this way, the first clamping part 421a of the first connection structure 421 can be clamped and assembled in the first clamping groove 411c on the bending part 411b of the first protection structure 411, and the riveting part 421b of the first connection structure 421 can be riveted to the first beam body 110 and / or the second beam body 120 to realize the separation and protection of the first protection structure 411 for the first body and / or the second beam body 120. The second clamping part 422a of the second connection structure 422 can be clamped and assembled in the second clamping groove 412a of the second protection structure 412, and the buckling part 422b of the second connection structure 422 can be clamped to the third end part 133 of the third beam body 130 through the first clamping groove 4221 to realize that the second protection structure 412 is separated and arranged between the third end part 133 and the electrical connector 30.

[0200] Please refer to Figures 1 to 3 , in a second aspect, the embodiment of the present application further provides an electrical device, including the battery device 100 as described above, and the battery device 100 is used to provide electric energy.

[0201] The electrical device provided by the embodiment of the present application includes the battery device 100 as described above. Thus, the probability of a short circuit occurring in the battery device 100 inside the electrical device is lower, and the reliability of the electrical device is better.

[0202] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery device, characterized in that: Comprising Battery cells; Electrical connectors electrically connected to the battery cells; A box assembly having an accommodation cavity formed therein; the battery cells and the electrical connectors are accommodated in the accommodation cavity; And A protection assembly including a protection member and a mounting member, the protection member being connected to the mounting member, and the mounting member being connected to the box assembly; Wherein, the box assembly includes a first beam body and a second beam body, the first beam body being connected to the second beam body; the protection member includes a first protection structure, and the first protection structure is separately disposed between the connection of the first beam body and the second beam body and the electrical connectors; and / or, the first protection structure is separately disposed between at least one of the first beam body and the second beam body and the electrical connectors.

2. The battery device according to claim 1, wherein: The mounting member includes a first connection structure connected to the first protection structure; the first connection structure is connected to at least one of the first beam body and the second beam body.

3. The battery device according to claim 2, characterized in that: A first connection hole is formed on the first beam body, and a second connection hole is formed on the second beam body; the number of the first connection structures is multiple, and the multiple first connection structures are connected to at least one of the first connection hole and the second connection hole.

4. The battery device according to claim 2 or 3, characterized in that: The first connection structure includes a first clamping portion and a riveting portion connected to each other, the first clamping portion being connected to the first protection structure, and the riveting portion being riveted to at least one of the first beam body and the second beam body.

5. The battery device according to claim 4, characterized in that: At least one crease is provided on the first protection structure, and the crease divides the first protection structure to form a plurality of bending portions; the bending portions are configured to be bendable around the crease.

6. The battery device according to claim 5, wherein: A plurality of first clamping grooves are formed on at least one of the bending portions, and the first clamping grooves are in clamping cooperation with the first clamping portions, and the plurality of first clamping grooves are sequentially spaced apart in any direction.

7. The battery device according to claim 4, wherein: The first protection structure has elasticity.

8. The battery device according to any one of claims 1 to 3 and 5 to 7, characterized in that: The number of the first beam bodies and the second beam bodies is multiple, and the multiple first beam bodies and the multiple second beam bodies are sequentially connected end to end to form a frame; The box assembly further includes a third beam body disposed within the frame, opposite ends of the third beam body being connected to the first beam body; at least one end of the third beam body is provided with an avoidance groove, and the first beam body encloses the avoidance groove to form an avoidance space, and the electrical connectors pass through the avoidance space; The protection member further includes a second protection structure, at least a part of the second protection structure is disposed within the avoidance space and is used to separate the electrical connectors and at least a part of the inner wall surface of the avoidance groove; and / or, a part of the first protection structure extends into the avoidance space and is used to separate the electrical connectors and at least a part of the inner wall surface of the avoidance groove.

9. The battery device according to claim 8, characterized in that: At least one end of the third beam body includes a first end portion, a second end portion, and a third end portion arranged in sequence. The first end portion is connected to the first beam body. An avoidance groove is formed between the second end portion and the third end portion. The second end portion, the third end portion, and the first beam body enclose an avoidance space. A part of the first protection structure extends between the second end portion and the electrical connector and is used to separate the second end portion and the electrical connector. The second protection structure is arranged between the third end portion and the electrical connector and is used to separate the third end portion and the electrical connector. The mounting member includes a second connection structure, and the second connection structure is connected to the second protection structure. The second connection structure is connected to the third end portion.

10. The battery device according to claim 9, characterized in that: A cavity is formed inside the third beam body, and the cavity penetrates from the third end portion to the outside. A first clamping groove is formed in the second connection structure, and the second connection structure is clamped to the third end portion so that the side wall of the third beam body is clamped in the first clamping groove.

11. The battery device according to claim 10, wherein: The number of the second connection structures is at least two, and at least two side walls of the third beam body at the third end portion are respectively clamped in the first clamping grooves of the corresponding second connection structures.

12. The battery device according to claim 10 or 11, characterized in that: The second connection structure includes a second clamping portion and a buckle portion connected to each other. The second clamping portion is connected to the second protection structure, and the first clamping groove is formed in the buckle portion.

13. The battery device according to claim 12, wherein: A plurality of second clamping grooves are formed in the second protection structure, and the second clamping grooves are in clamping fit with the second clamping portion. The plurality of second clamping grooves are arranged at intervals in any direction in sequence.

14. The battery device according to any one of claims 1 to 3 and 5 to 7, characterized in that: The box body assembly further includes a sheet metal part, and the sheet metal part is arranged in the accommodation cavity. The protection member further includes a third protection structure, the mounting member includes a third connection structure, the third protection structure is connected to the third connection structure, the third connection structure is connected to the sheet metal part, and the third protection structure is arranged between the sheet metal part and the electrical connector and is used to separate the electrical connector and the sheet metal part.

15. The battery device according to claim 14, characterized in that: The third connection structure is provided with a second clamping groove, and the third connection structure is clamped to the outer edge of the sheet metal part through the second clamping groove.

16. The battery device according to any one of claims 1 to 3, characterized in that: The protection assembly further includes a fixing member, the fixing member is arranged on the protection member, and the fixing member is connected to the electrical connector.

17. An electrical device, characterized in that: Including the battery device according to any one of claims 1 to 16, and the battery device is used to provide electric energy.

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