Battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a battery device and electric equipment. The battery device comprises a battery box, the battery box comprises a first box body and a second box body, a containing cavity is defined between the first box body and the second box body, and the first box body and the second box body are both conductors; the battery monomer is accommodated in the accommodating space; the connecting piece comprises a body and an anti-corrosion coating arranged on the surface of the body, the body is configured to be fixedly connected with the first box body and the second box body, and the anti-corrosion coating is used for forming galvanic corrosion with the body and / or the battery box; the gasket is arranged on the side, away from the second box body, of the first box body, a through hole is formed in the gasket, and the connecting piece penetrates through the through hole and is in contact connection with the gasket. According to the technical scheme, the risk that the battery box is corroded can be reduced, so that the use reliability of the battery device is improved, and the service life of the battery device is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and particularly to a battery device and an electrical device. Background Art

[0002] The information provided in this section is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] Currently, with the continuous development of battery technology, users' requirements for the safety and protection of battery use are getting higher and higher. Among them, the battery box, as an important protective structure of the battery, is usually made of metal conductors. Therefore, when the battery is often in an environment with high humidity, rain, or even underwater operation, the battery box is very likely to be corroded, affecting the reliability of battery use. Summary of the Utility Model

[0004] The purpose of the present application is to provide a battery device and an electrical device to reduce the risk of corrosion of the battery box and improve the reliability of battery use. This purpose is achieved through the following technical solutions:

[0005] In a first aspect, the present application provides a battery device, including: a battery box, including a first box body and a second box body, a receiving cavity is defined between the first box body and the second box body, and both the first box body and the second box body are conductors; a battery cell, accommodated in the receiving space; a connecting member, the connecting member includes a body and an anti-corrosion coating provided on the surface of the body, the body is configured to fixedly connect the first box body and the second box body, and the anti-corrosion coating is used to form galvanic corrosion with the body and / or the battery box; a gasket, the gasket is provided on a side of the first box body facing away from the second box body, and the gasket is provided with a through hole, the connecting member passes through the through hole and is in contact connection with the gasket.

[0006] According to the battery device provided by the present application, by providing a connecting member on the battery box of the battery device, the connecting member is used to fixedly connect the first box body and the second box body, so as to reduce the risk of shaking of the first box body and the second box body, thereby helping to improve the reliability of the battery cell placed in the battery box. Among them, since an anti-corrosion coating is provided outside the body of the connecting member, the anti-corrosion coating can form galvanic corrosion with at least one of the body and the battery box. During the corrosion process, the sacrificial anode member can be preferentially corroded as the anode, playing an anti-corrosion protection role for the body and the battery box as the cathode, thereby reducing the risk of corrosion of the body and the battery box, improving the service life of the battery box, and further improving the reliability of use of the battery device. In addition, by providing a gasket between the connecting member and the first flanging, the gasket can enhance the connection strength between the connecting member and the first box body, improve the reliability and stability of the connection between the connecting member and the first box body, and the gasket can block the connection interface between the connecting member and the first box body, reducing the risk of the connecting member disengaging from the connection interface after long-term wear.

[0007] In addition, the battery device provided by the present application may further have the following additional technical features:

[0008] In some embodiments of the present application, the first box body is provided with a first connection hole, the second box body is provided with a second connection hole, the first connection hole and the second connection hole are correspondingly communicated, and the connecting member passes through the first connection hole and the second connection hole and is electrically connected to the first box body and the second box body.

[0009] By providing a first connection hole on the first box body and a second connection hole on the second box body, in this way, the connecting member passing through the first connection hole and the second connection hole can fixedly connect the first box body and the second box body, and can make the anti-corrosion coating of the connecting member keep in contact with the first box body and the second box body to form an electrical connection, so that the anti-corrosion coating can form galvanic corrosion with the body and the battery box, reduce the corrosion rate of the body and the battery box, and improve the service life of the battery box.

[0010] In some embodiments of the present application, the edge of the first box body is provided with a first flanging, the edge of the second box body is provided with a second flanging, the first flanging and the second flanging are attached to each other. Among them, the gasket is provided on the side of the first flanging facing away from the second box body, the first flanging is provided with the first connection hole, the second flanging is provided with the second connection hole, and the through hole is communicated with the first connection hole and the second connection hole.

[0011] By providing a first flanging on the edge of the first box body and a second flanging attached to the first flanging on the edge of the second box body, it is convenient for the connecting member to be connected to the first box body and the second box body, and the risk of bumping and damaging the battery cell in the battery box during the connection of the connecting member can be reduced.

[0012] In some embodiments of the present application, the number of the first connection hole, the second connection hole and the connection member are all multiple, the multiple first connection holes and the multiple second connection holes are connected one by one, and the correspondingly connected first connection holes and the second connection holes are fixedly connected by one of the connection members.

[0013] By increasing the number of connectors used to connect the battery box, the reliability and stability of the connection between the first box body and the second box body can be improved. At the same time, more sacrificial anti-corrosion coatings can be used during the corrosion process, which helps to further reduce the risk of corrosion of the battery box.

[0014] In some embodiments of the present application, the gasket includes a zinc sheet.

[0015] When the gasket is a zinc sheet, the gasket can serve as a sacrificial anode together with the anti-corrosion coating on the surface of the connector. The zinc sheet can be corroded first to form a zinc oxide isolation film. The zinc oxide isolation film will block corrosive media such as salt spray from corroding the damaged and exposed interface, thereby providing excellent isolation and protection functions, thereby meeting the anti-corrosion requirements and further reducing the risk of corrosion of the main body and the battery box.

[0016] In some embodiments of the present application, an adhesive layer is provided on the side of the zinc sheet facing the first flange, and the adhesive layer is adhesively connected to the first flange.

[0017] The setting of the adhesive layer can ensure the firmness of the fit between the zinc sheet and the battery box, and at the same time play a sealing and blocking effect to isolate the corrosive medium from entering the damaged section of the battery box through the zinc sheet, thereby further reducing the risk of corrosion of the body and the battery box.

[0018] In some embodiments of the present application, the main body includes a connecting body and a flange arranged at one end of the connecting body, the connecting body is passed through the through hole and is connected to the first box body and the second box body, and the flange is crimped to the side of the gasket away from the first flange.

[0019] After the connecting body passes through the through hole, the first connecting hole and the second connecting hole in sequence, the flange can be crimped to the side of the gasket away from the first flange to achieve the connection between the first box body and the second box body, and can also achieve the fixation of the gasket. The structure and principle are relatively simple and easy to implement.

[0020] In some embodiments of the present application, a cavity is provided in the middle of the connecting body.

[0021] By arranging a cavity in the middle of the connecting body, the weight of the product can be reduced, thereby facilitating a lightweight design of the product.

[0022] In some embodiments of the present application, the connecting member includes a rivet, and a galvanized layer is provided on the surface of the rivet.

[0023] That is, the first box body and the second box body are connected by riveting, which helps to improve the reliability of the connection between the first box body and the second box body, and the rivet can always be in contact connection with the first box body and the second box body, so that the galvanized layer on the surface of the rivet can always form galvanic corrosion with the battery box, which helps to reduce the risk of corrosion of the battery box.

[0024] In a second aspect, the present application provides an electrical device, including the battery device according to any one of the embodiments of the first aspect, and the battery device is used to supply power to the electrical device.

[0025] According to the electrical device provided by the present application, since it includes the battery device according to any one of the embodiments of the first aspect, it has the technical effects of any of the above embodiments, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0027] Figure 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application;

[0028] Figure 2 is an exploded structural diagram of a battery device provided by some embodiments of the present application;

[0029] Figure 3 is an assembled structural diagram of a battery device provided by some embodiments of the present application from one perspective;

[0030] Figure 4 is an assembled structural diagram of a battery device provided by some embodiments of the present application from another perspective;

[0031] Figure 5 is Figure 4 an enlarged structural diagram of part A in

[0032] Figure 6 is a schematic structural diagram of a connecting member provided by some embodiments of the present application;

[0033] Figure 7 is an exploded structural diagram of a zinc sheet and an adhesive layer provided by some embodiments of the present application.

[0034] The reference numerals are as follows:

[0035] 1000, Vehicle;

[0036] 100, Battery device; 200, Controller; 300, Motor;

[0037] 10, Battery box; 11, First box body; 12, Second box body; 20, Battery cell; 30, Connecting member; 31, Connecting body; 32, Flange; 40, Zinc sheet; 50, Adhesive layer;

[0038] 111, First flanging; 121, Second flanging. Detailed implementation mode

[0039] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0041] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means more than two unless otherwise specifically defined.

[0042] Referring to "embodiment" herein means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0044] In the description of the embodiments of the present application, the term "a plurality of" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of sheets" means two or more sheets (including two sheets).

[0045] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of 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. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also 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 elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0047] Currently, from the perspective of the development of the market situation, the application of battery devices is becoming more and more extensive. Battery devices are not only applied to energy storage power systems such as hydraulic, thermal, wind, and solar power stations, but also widely used in electric transportation means such as electric bicycles, electric motorcycles, and electric vehicles, as well as multiple fields such as aerospace. With the continuous expansion of the application fields of battery devices, the market demand is also continuously increasing.

[0048] Among them, the battery device includes a battery box. As an important protective structure of the battery device, the battery box is usually made of metal conductors. Therefore, when the battery device is often in an environment with high humidity, rain, or even underwater operation, the battery box is easily corroded due to the intrusion of corrosion media such as salt spray, affecting the use reliability of the battery device.

[0049] In order to solve the problem that the battery box is prone to corrosion in an environment with high humidity, rain, or even underwater operations, the present application designs a battery device. By providing a connecting member on the battery box of the battery device, the connecting member includes a body and an anti-corrosion coating provided on the surface of the body. The connecting member fixedly connects the first box body and the second box body of the battery box, and a gasket is provided between the connecting member and the first box body. The anti-corrosion coating can form galvanic corrosion with at least one of the body and the battery box, and during the corrosion process, the anti-corrosion coating can be preferentially corroded as the anode, playing an anti-corrosion protection role for the body and the battery box as the cathode, thereby reducing the risk of corrosion of the body and the battery box. The gasket can enhance the connection strength between the connecting member and the first box body, improve the reliability and stability of the connection between the connecting member and the first box body, and further improve the service reliability and service life of the battery device.

[0050] The battery device disclosed in the embodiments of the present application can be used in, but is not limited to, electrical equipment such as vehicles, ships, or aircraft. The power supply system of such electrical equipment can be composed of the battery monomer components and battery devices disclosed in the present application. In this way, it helps to reduce the risk of corrosion of the battery box of the battery device and improve the service life of the battery device.

[0051] The embodiments of the present application provide an electrical equipment using a battery device as a power source. The electrical equipment can be, but is not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric vehicles, ships, spacecraft, etc. Among them, the electric toys can include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric aircraft toys, etc. The spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.

[0052] For the convenience of description in the following embodiments, a vehicle 1000, which is an electrical equipment according to an embodiment of the present application, is taken as an example for illustration.

[0053] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the vehicle 1000 provided by some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000. The battery device 100 can be provided at the bottom, head, or tail of the vehicle 1000. The battery device 100 can be used for the power supply of the vehicle 1000. For example, the battery device 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 can also 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, to meet the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0054] In some embodiments of the present application, the battery device 100 can not only serve as the operating power source of the vehicle 1000, but also as the driving power source of the vehicle 1000, providing driving power for the vehicle 1000 instead of or partially replacing fuel or natural gas.

[0055] See Figure 2 , Figure 2 is a schematic exploded view of the battery device provided in some embodiments of the present application. The battery device 100 (Battery Apparatus) mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity.

[0056] In some embodiments, the battery device 100 may be a battery pack (Battery Pack), and the battery pack includes a battery box and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the battery box.

[0057] As an example, the battery cell assembly may be accommodated in the battery box by fixing the battery module in the battery box.

[0058] As an example, the battery cell assembly may also be accommodated in the battery box by directly fixing a plurality of battery cells 20 to the battery box.

[0059] In some embodiments, the battery cell assembly (Battery Cell Assembly) is generally formed by arranging a plurality of battery cells 20. The plurality of battery cells 20 are connected in series, in parallel or in a hybrid connection through a busbar component.

[0060] As an example, the battery cell assembly may be a battery module (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 may be formed by bundling a plurality of battery cells 20 with cable ties.

[0061] 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.

[0062] Please see Figures 2 to 5 , Figure 2 is a schematic exploded view of the battery device provided in some embodiments of the present application; Figure 3 is a schematic assembled view of the battery device from one perspective provided in some embodiments of the present application; Figure 4 is a schematic assembled view of the battery device from another perspective provided in some embodiments of the present application; Figure 5 is Figure 4Schematic diagram of the enlarged structure of part A. An embodiment of the present application provides a battery device 100, which includes a battery box 10, a battery cell assembly, and a connecting member 30. Among them, the battery box 10 includes a first box body 11 and a second box body 12. An accommodation cavity is defined between the first box body 11 and the second box body 12, and both the first box body 11 and the second box body 12 are conductors; the battery cells are accommodated in the accommodation cavity; the connecting member 30 includes a body and an anti-corrosion coating provided on the surface of the body. The body is configured to fixedly connect the first box body 11 and the second box body 12, and the anti-corrosion coating is used to form galvanic corrosion with the body and / or the battery box 10; a gasket is provided on the side of the first box body 11 facing away from the second box body 12, and the gasket is provided with a through hole. The connecting member passes through the through hole and is in contact connection with the gasket.

[0063] As an example, the first box body 11 and the second box body 12 are buckled together so that a closed space is formed inside the battery box 10 to accommodate the battery cells. Here, "closed" means covered or closed, which can be sealed or non-sealed. The first box body 11 can be an end cover or a bottom plate.

[0064] In some embodiments, the battery box 10 can be part of the chassis structure of a vehicle. For example, part of the battery box 10 can become at least part of the bottom plate of the vehicle, or part of the battery box 10 can become at least part of the cross beam and longitudinal beam of the vehicle.

[0065] As an example, the connecting member 30 can be a rivet or a bolt. Among them, the material of the body can be steel, iron, or alloy.

[0066] The anti-corrosion coating can be a galvanized layer or a magnesium-plated layer provided on the outer surface of the body.

[0067] As an example, the gasket is a circular gasket. The gasket can be a zinc gasket or a magnesium gasket.

[0068] By providing a connecting member 30 on the battery box 10 of the battery device 100, the connecting member 30 is used to fixedly connect the first box body 11 and the second box body 12, so as to reduce the risk of the first box body 11 and the second box body 12 shaking, thereby helping to improve the reliability of the battery cells placed in the battery box 10. Among them, since an anti-corrosion coating is provided outside the body of the connecting member 30, the anti-corrosion coating can form galvanic corrosion with at least one of the body and the battery box 10. And during the corrosion process, the sacrificial anode member can be preferentially corroded as the anode, playing an anti-corrosion protection role for the body and the battery box 10 as the cathode, thereby reducing the risk of the body and the battery box 10 being corroded, improving the service life of the battery box 10, and further improving the use reliability of the battery device 100. In addition, by providing a gasket between the connecting member 30 and the first box body 11, the gasket can enhance the connection strength between the connecting member 30 and the first box body 11, so as to improve the reliability and stability of the connection between the connecting member 30 and the first box body 11, and the gasket can seal the connection interface between the connecting member and the first box body 11, reducing the risk of the connecting member 30 detaching from the connection interface after long-term wear.

[0069] According to some embodiments of the present application, the first box body 11 is provided with a first connection hole, the second box body 12 is provided with a second connection hole, the first connection hole and the second connection hole are correspondingly communicated, and the connecting member 30 passes through the first connection hole and the second connection hole and is electrically connected to the first box body 11 and the second box body 12.

[0070] By providing a first connection hole on the first box body 11 and a second connection hole on the second box body 12, in this way, the connecting member 30 passing through the first connection hole and the second connection hole can fixedly connect the first box body 11 and the second box body 12, and can make the anti-corrosion coating of the connecting member 30 keep in contact with the first box body 11 and the second box body 12 to form an electrical connection, so that the anti-corrosion coating can form galvanic corrosion with the body and the battery box 10, reducing the corrosion rate of the body and the battery box 10 and improving the service life of the battery box 10.

[0071] Please refer to Figure 3 and Figure 4 , according to some embodiments of the present application, the edge of the first box body 11 is provided with a first flanging 111, the edge of the second box body 12 is provided with a second flanging 121, the first flanging 111 and the second flanging 121 are fitted to each other. Among them, the gasket is provided on the side of the first flanging 111 facing away from the second box body 12. The first flanging 111 is provided with a first connection hole, the second flanging 121 is provided with a second connection hole, and the through hole is connected to the first connection hole and the second connection hole.

[0072] It can be understood that the first flanging 111 is provided on the peripheral edge of the first box body 11, the second flanging 121 is provided on the peripheral edge of the second box body 12, and the first flanging 111 and the second flanging 121 are arranged in parallel.

[0073] By providing a first flanging 111 at the edge of the first box body 11 and a second flanging 121 that fits against the first flanging 111 at the edge of the second box body 12, it is convenient to connect the connecting member 30 to the first box body 11 and the second box body 12, and the risk of the connecting member 30 hitting and damaging the battery cells in the battery box 10 during connection can be reduced.

[0074] According to some embodiments of the present application, the number of the first connection holes, the second connection holes, and the connecting member 30 is multiple. The multiple first connection holes and the multiple second connection holes are in one-to-one correspondence and communication, and the correspondingly communicated first connection hole and second connection hole are fixedly connected by a connecting member 30.

[0075] By increasing the number of the connecting members 30 for connecting the battery box 10, the reliability and stability of the connection between the first box body 11 and the second box body 12 can be improved. At the same time, there are more sacrificial anti-corrosion coatings available during the corrosion process, which helps to further reduce the risk of the battery box 10 being corroded.

[0076] According to some embodiments of the present application, the gasket includes a zinc sheet 40.

[0077] When the gasket is a zinc sheet 40, the gasket and the anti-corrosion coating on the surface of the connecting member 30 can simultaneously serve as sacrificial anodes. The zinc sheet 40 can be preferentially corroded to form a zinc oxide isolation film, and the zinc oxide isolation film will block the erosion of corrosive media such as salt spray on the damaged and exposed interface, playing an excellent isolation and protection function, thereby meeting the anti-corrosion requirements and further reducing the risk of the main body and the battery box 10 being corroded.

[0078] Please refer to Figure 7 , Figure 7 which is an exploded structural schematic diagram of the zinc sheet and the adhesive layer provided by some embodiments of the present application. According to some embodiments of the present application, an adhesive layer 50 is provided on the side of the zinc sheet 40 facing the first flanging 111, and the adhesive layer 50 is adhesively connected to the first flanging 111.

[0079] Exemplarily, the adhesive layer 50 can be a thermosetting adhesive or an epoxy resin.

[0080] The provision of the adhesive layer 50 can embody the firmness of the fit between the zinc sheet 40 and the battery box 10, and at the same time play a sealing and plugging effect to isolate the corrosive medium from entering the damaged section of the battery box 10 through the zinc sheet 40, thereby further reducing the risk of the main body and the battery box 10 being corroded.

[0081] Figure 6Schematic structural diagram of the connecting member provided by some embodiments of the present application. According to some embodiments of the present application, the body includes a connecting body 31 and a flange 32 provided at one end of the connecting body 31. The connecting body 31 passes through the through hole and is connected to the first box body 11 and the second box body 12, and the flange 32 is crimped on the side of the gasket facing away from the first flanging 111.

[0082] Specifically, along the direction from the connecting body 31 to the flange 32, the orthographic projection of the connecting body 31 on the flange 32 is located within the flange 32.

[0083] After the connecting body 31 sequentially passes through the through hole, the first connection hole, and the second connection hole, the flange 32 can be crimped on the side of the gasket facing away from the first flanging 111 to realize the connection between the first box body 11 and the second box body 12, and the fixing of the gasket can be realized. The structure and principle are relatively simple and easy to implement.

[0084] According to some embodiments of the present application, a cavity is provided in the middle of the connecting body 31.

[0085] By providing a cavity in the middle of the connecting body 31, the weight of the product can be reduced, which helps to realize the lightweight design of the product.

[0086] According to some embodiments of the present application, the connecting member 30 includes a rivet, and a galvanized layer is provided on the surface of the rivet.

[0087] Specifically, when the rivet is riveted to the first box body 11 and the second box body 12, the rivet can sequentially pass through the gasket, the first box body 11, and the second box body 12, and the end of the rivet facing away from the first box body 11 can form a flanging structure fixedly connected to the second box body 12 after riveting.

[0088] The first box body 11 and the second box body 12 are connected by riveting, which helps to improve the reliability of the connection between the first box body 11 and the second box body 12, and the rivet can always be in contact connection with the first box body 11 and the second box body 12, so that the galvanized layer on the surface of the rivet can always form galvanic corrosion with the battery box 10, which helps to reduce the risk of corrosion of the battery box 10.

[0089] According to some embodiments of the present application, see Figures 3 to 6, this application provides a battery device 100, which includes a battery box 10, battery cells 20, zinc sheets 40 and a connecting member 30. Among them, the battery box 10 includes a first box body 11 and a second box body 12. An accommodation cavity is defined between the first box body 11 and the second box body 12, and both the first box body 11 and the second box body 12 are conductors; the battery cells 20 are accommodated in the accommodation space; the connecting member 30 includes a body and a galvanized layer provided on the surface of the body. The body includes a connecting main body 31 and a flange 32 connected to one end of the connecting main body 31. The zinc sheet 40 is disposed on a side of the first box body 11 facing away from the second box body 12. The connecting main body 31 is configured to sequentially pass through a first connection hole of the first box body 11 and a second connection hole of the second box body 12, and the flange 32 is pressed against a side of the zinc sheet 40 facing away from the first box body 11. The galvanized layer is used to form galvanic corrosion with the body and / or the battery box 10. Through the technical solution of this application, the risk of the battery box 10 being corroded by a corrosive medium can be reduced, thereby improving the use reliability and service life of the battery device 100.

[0090] As described above, the above are only the preferred specific embodiments of this application, but the protection scope of this application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in this application should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A battery device, characterized in that: include: A battery box, comprising a first box body and a second box body, wherein a receiving cavity is defined between the first box body and the second box body, and both the first box body and the second box body are conductors; A battery cell is accommodated in the accommodation cavity; A connector, the connector comprising a body and an anti-corrosion coating provided on a surface of the body, the body being configured to fixedly connect the first box body and the second box body, the anti-corrosion coating forming galvanic corrosion with the body and / or the battery box; A gasket is arranged on a side of the first box body facing away from the second box body, and the gasket is provided with a through hole, and the connecting member is passed through the through hole and is in contact with and connected to the gasket.

2. The battery device according to claim 1, characterized in that: The first box body is provided with a first connection hole, the second box body is provided with a second connection hole, the first connection hole is correspondingly connected with the second connection hole, the connecting member passes through the first connection hole and the second connection hole, and is electrically connected with the first box body and the second box body.

3. The battery device according to claim 2, characterized in that: The edge of the first box body is provided with a first flange, and the edge of the second box body is provided with a second flange, and the first flange is fitted with the second flange. The gasket is arranged on a side of the first flange facing away from the second box body, the first flange is provided with the first connecting hole, the second flange is provided with the second connecting hole, and the through hole is connected with the first connecting hole and the second connecting hole.

4. The battery device according to claim 2 or 3, characterized in that: The number of the first connection holes, the second connection holes and the connection member are all multiple, the multiple first connection holes and the multiple second connection holes are connected one by one, and the correspondingly connected first connection holes and the second connection holes are fixedly connected by one connection member.

5. The battery device according to claim 3, characterized in that: The gasket includes a zinc sheet.

6. The battery device according to claim 5, characterized in that: A bonding layer is provided on the side of the zinc sheet facing the first flange, and the bonding layer is bonded to the first flange.

7. The battery device according to any one of claims 1 to 3, characterized in that: The main body includes a connecting body and a flange arranged at one end of the connecting body, the connecting body is passed through the through hole and connected to the first box body and the second box body, and the flange is crimped to a side of the gasket away from the first box body.

8. The battery device according to claim 7, characterized in that: A cavity is provided in the middle of the connecting body.

9. The battery device according to any one of claims 1 to 3, characterized in that: The connecting member includes a rivet or a bolt; And / or, the anti-corrosion coating includes a galvanized layer.

10. An electrical device, characterized in that: It comprises a battery device as described in any one of claims 1 to 9, wherein the battery device is used to supply power to the electrical device.

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