Box body, battery and electric device

Abstract

The utility model discloses a box body, a battery and an electric device. The box body comprises a heat exchange assembly, an electric connection assembly and a sealing assembly. The heat exchange assembly comprises a first heat exchange plate and a second heat exchange plate which are arranged in a stacked mode, and a heat exchange flow channel is arranged between the first heat exchange plate and the second heat exchange plate and used for exchanging heat with the single batteries. And the electric connection assembly is connected to the heat exchange assembly and is used for being electrically connected with the battery monomers. The sealing assembly is arranged in the circumferential direction of the electric connection assembly, and the sealing piece penetrates through the first heat exchange plate and the second heat exchange plate in the thickness direction of the heat exchange assembly and is connected with the first heat exchange plate and the second heat exchange plate. The sealing assembly is arranged around the electric connection assembly, so that the connection strength of the heat exchange assembly near the electric connection assembly can be improved, the sealing performance of the heat exchange assembly is improved, and the operation stability of the battery is improved.

Description

Technical Field

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

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, electric tools, and energy storage systems, etc. Battery cells can include nickel-cadmium battery cells, nickel-hydrogen battery cells, lithium-ion battery cells, sodium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] With the development of new energy technologies, how to improve the sealing performance of battery boxes and improve the operating stability of batteries is also one of the issues being studied in this field. Utility Model Content

[0004] In view of the above problems, the present application provides a box, a battery and an electrical device, which can improve the sealing performance of the box and improve the stability of battery operation.

[0005] In the first aspect, the present application provides a box body, including a heat exchange component, an electrical connection component and a sealing component. The heat exchange component includes a first heat exchange plate and a second heat exchange plate arranged in a stacked manner, and a heat exchange channel is provided between the first heat exchange plate and the second heat exchange plate, and the heat exchange channel is used to exchange heat for the battery cell. The electrical connection component is connected to the heat exchange component, and the electrical connection component is used to be electrically connected to the battery cell. The sealing component is arranged along the circumference of the electrical connection component, and the sealing member penetrates and connects the first heat exchange plate and the second heat exchange plate along the thickness direction of the heat exchange component.

[0006] In the technical solution of the embodiment of the present application, a heat exchange component is provided to exchange heat between battery cells, thereby improving the heat exchange efficiency of the battery cells and improving the stability of their operation. The electrical connection component is used to transmit the electrical energy of the battery cells. A sealing component is provided around the electrical connection component to improve the connection strength of the heat exchange component near the electrical connection component and improve the sealing performance of the heat exchange component, thereby improving the stability of the battery operation.

[0007] In some embodiments, the sealing assembly includes a plurality of sealing nails arranged at intervals along the circumference of the electrical connection assembly. In the above technical solution, by arranging a plurality of sealing nails to connect the first heat exchange plate and the second heat exchange plate, the connection strength of the heat exchange assembly around the electrical connection assembly is improved, the sealing performance thereof is improved, the influence of the electrical connection assembly on the sealing performance of the heat exchange assembly is reduced, and the structural stability of the heat exchange assembly is improved.

[0008] In some embodiments, the sealing nail includes a nail cap and a plurality of nail claws. The nail cap is disposed on the side of the heat exchange assembly away from the battery cell. A plurality of nail claws are arranged at intervals along the circumference of the nail cap, and the nail claws penetrate the heat exchange assembly along the thickness direction of the heat exchange assembly to connect the first heat exchange plate and the second heat exchange plate, and the nail claws and the nail cap are an integrally formed structure. In the above technical solution, a plurality of nail claws are provided to connect the first heat exchange plate and the second heat exchange plate, thereby improving the connection strength of the first heat exchange plate and the second heat exchange plate. The sealing performance of the heat exchange assembly is improved.

[0009] In some embodiments, the box body further includes a support plate, which is disposed on a side of the heat exchange assembly away from the battery cell, and the sealing assembly penetrates the support plate along the thickness direction of the support plate and connects the support plate and the heat exchange assembly. In the above structure, the support plate is provided to improve the support strength of the box body for the battery cell, improve the stability of the battery cell operation, and the sealing assembly connects the support plate and the heat exchange assembly, improves the strength of the connection between the support plate and the heat exchange assembly and the stability of the overall structure of the box body.

[0010] In some embodiments, the sealing assembly further includes a sealing layer, which is disposed between the heat exchange assembly and the support plate. By providing the sealing layer, the sealing performance between the support plate and the heat exchange assembly is further improved.

[0011] In some embodiments, the housing further includes a frame and a first connector. The support plate and the heat exchange assembly are connected to the frame, and the frame and the heat exchange assembly together enclose a housing cavity for accommodating a battery cell. The first connector connects the frame and the heat exchange plate. The sealing assembly is disposed between the electrical connection assembly and the first connector. In the above structure, by providing the first connector, the frame and the housing are connected to improve the overall structural strength of the housing, and the sealing assembly is disposed between the electrical connection assembly and the first connector, thereby improving the sealing performance between the electrical connection assembly and the heat exchange assembly.

[0012] In some embodiments, the box body further includes a second connector, which is used to connect the heat exchange component and the support plate, and the sealing component is arranged between the electrical connection component and the second connector. By providing the second connector, the sealing performance between the electrical connection component and the support plate is improved.

[0013] In some embodiments, the electrical connection assembly includes at least one of a connector or an output pole base. By providing the electrical connection assembly, the electrical energy of the battery cell can be conducted.

[0014] In a second aspect, the present application provides a battery, which includes the box body and a battery cell in the above embodiment, and the battery cell is arranged in the box body.

[0015] In a third aspect, the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0018] Figure 1 A schematic diagram of the structure of a vehicle according to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the exploded structure of a battery according to an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the structure of a battery cell according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the partial structure of a box according to an embodiment of the present application;

[0022] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the middle circle A;

[0023] Figure 6 for Figure 4 Schematic diagram of the structure of the middle section BB;

[0024] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle circle C.

[0025] DETAILED DESCRIPTION OF REFERENCE NUMERALS

[0026] 1. Vehicle; 2. Battery; 10. Electrode assembly; 20. Shell; 30. End cover; 40. Outer shell; 3. Controller; 4. Motor; 5. Box; 51. First part; 52. Second part; 53. Accommodation space; 54. Support plate; 55. Frame; 56. First connector; 57. Second connector; 6. Heat exchange assembly; 601. First heat exchange plate; 602. Second heat exchange plate; 603. Heat exchange flow channel; 7. Battery cell; 8. Electrical connection assembly; 801. Connector; 802. Output pole base; 9. Sealing assembly; 901. Sealing nail; 902. Nail cap; 903. Nail claw. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0029] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0032] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0033] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of 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 the specific circumstances.

[0035] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle provided for one embodiment of the present application. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 2 is provided inside the vehicle 1, and the battery 2 may be provided at the bottom, head or tail of the vehicle 1. The battery 2 may be used to power the vehicle 1, for example, the battery 2 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 3 and a motor 4, and the controller 3 is used to control the battery 2 to power the motor 4, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0036] In some embodiments of the present application, the battery 2 can be used not only as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0037] In some embodiments, the battery may be an energy storage device, which includes an energy storage container, an energy storage cabinet, and the like.

[0038] Please refer to Figure 2 , Figure 2 This is an exploded view of a battery provided in one embodiment of the present application. The battery 2 includes a box body 5 and a battery cell 7, and the battery cell 7 is accommodated in the box body 5. The box body 5 is used to provide an accommodating space 53 for the battery cell 7, and the box body 5 can adopt a variety of structures.

[0039] In some optional embodiments, the box body 5 includes a first part 51 and a second part 52, the first part 51 and the second part 52 cover each other, and the first part 51 and the second part 52 jointly define a storage space 53 for accommodating the battery cell 7. The second part 52 can be a hollow structure with one end open, and the first part 51 can be a plate-like structure, and the first part 51 covers the open side of the second part 52, so that the first part 51 and the second part 52 jointly define the storage space 53; the first part 51 and the second part 52 can also be hollow structures with one side open, and the open side of the first part 51 covers the open side of the second part 52. Of course, the box body 5 formed by the first part 51 and the second part 52 can be a variety of shapes, such as a cylinder, a cuboid, etc.

[0040] In some embodiments, the box 5 can be used as part of the chassis structure of the vehicle 1. For example, part of the box 5 can become at least a part of the floor of the vehicle 1, or part of the box 5 can become at least a part of the cross beam and longitudinal beam of the vehicle 1.

[0041] In some embodiments, the first part 51 or the second part 52 may include a frame and a cover plate, and the frame includes a plurality of beam structures.

[0042] In the battery 2, there can be multiple battery cells 7, and the multiple battery cells 7 can be connected in series, in parallel, or in mixed connection. Mixed connection means that the multiple battery cells 7 are both connected in series and in parallel. The multiple battery cells 7 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 7 is accommodated in the box 5. Of course, the battery 2 can also be a battery module formed by connecting multiple battery cells 7 in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box 5. The battery 2 can also include other structures, for example, the battery 2 can also include a converging component for realizing the electrical connection between the multiple battery cells 7.

[0043] Each battery cell 7 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 7 may be cylindrical, flat, rectangular or in other shapes.

[0044] Please refer to Figure 3 , Figure 3 The schematic diagram of the structure of a battery cell 7 provided in one embodiment of the present application. The battery cell 7 refers to the smallest unit constituting the battery 2. Figure 3 The battery cell 7 includes a housing 40, an electrode assembly 10 and other functional components.

[0045] The housing 40 may include an end cover 30 and a housing 20. The end cover 30 is a component that covers the opening of the housing 20 to isolate the internal environment of the battery cell 7 from the external environment.

[0046] The electrode assembly 10 is a component in the battery cell 7 where electrochemical reactions occur. One or more electrode assemblies 10 may be included in the housing 20. The electrode assembly 10 includes a positive electrode sheet, a negative electrode sheet, and a separator. During the charge and discharge process of the battery cell 7, active ions (such as lithium ions) are embedded and removed back and forth between the positive electrode sheet and the negative electrode sheet. The separator is arranged between the positive electrode sheet and the negative electrode sheet, which can prevent the positive and negative electrodes from short-circuiting and allow active ions to pass through. In some embodiments, the battery cell 7 also includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The present application does not have any specific restrictions on the type of electrolyte, which can be selected according to needs. The electrolyte can be liquid, gel or solid.

[0047] In some embodiments, the electrode assembly 10 is a wound structure. Optionally, the electrode assembly 10 is a laminated structure.

[0048] Some functional components also need to be provided in the battery, such as a connector, which is usually composed of two or more metal plugs and can be inserted or connected to the positive and negative poles of the battery cell to transfer electrical energy in the circuit. The function of the battery connector is to stably and reliably connect the battery for use in electronic devices. The battery connector usually has a pluggable design, which can be easily inserted and unplugged without damaging the battery. There are also some functional components, such as an output pole base, which is used to install the output pole of the battery. The output pole is electrically connected to the positive pole of the battery cell to transmit the electrical energy of the battery cell to the outside. The above-mentioned functional components are usually arranged on the battery box. Specifically, in order to improve the strength and connection stability of the connection between the above-mentioned functional components and the box, part of the functional components can be inserted into the support plate or heat exchange assembly of the box. However, the sealing of the position where the above-mentioned components are connected to the heat exchange assembly is reduced, which increases the risk of leakage of the heat exchange assembly.

[0049] In order to solve the above problems, the present application provides a box body, in which a heat exchange component is arranged to exchange heat with the battery monomer, improve the heat exchange efficiency of the battery monomer to improve the stability of its operation, and the electrical connection component is used to transmit the electrical energy of the battery monomer. In addition, a sealing component is arranged around the electrical connection component to improve the connection strength of the heat exchange component near the electrical connection component, improve the sealing performance of the heat exchange component, and thus improve the stability of the battery operation.

[0050] The box of the embodiment of the present application is described in detail below with reference to the accompanying drawings. Figures 4 to 7 , Figure 4This is a schematic diagram of the partial structure of a box according to an embodiment of the present application. Figure 5 for Figure 4 The enlarged structural diagram of the middle circle A, Figure 6 for Figure 4 Schematic diagram of the structure of the middle section BB, Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle circle C.

[0051] As shown in the figure, the housing 5 of the embodiment of the present application includes a heat exchange component 6, an electrical connection component 8 and a sealing component 9. The heat exchange component 6 includes a first heat exchange plate 601 and a second heat exchange plate 602 arranged in a stacked manner, and a heat exchange channel 603 is provided between the first heat exchange plate 601 and the second heat exchange plate 602, and the heat exchange channel 603 is used to exchange heat with the battery cell 7. The electrical connection component 8 is connected to the heat exchange component 6, and the electrical connection component 8 is used to be electrically connected to the battery cell 7. The sealing component 9 is arranged along the circumference of the electrical connection component 8, and the sealing member penetrates and connects the first heat exchange plate 601 and the second heat exchange plate 602 along the thickness direction of the heat exchange component 6.

[0052] Optionally, the heat exchange channel 603 can be a first heat exchange plate 601 or a second heat exchange plate 602 that is formed into a concave groove by stamping using a metal plate, and the two are stacked and bonded to form a closed channel. Therefore, a good sealing performance needs to be formed between the first heat exchange plate 601 and the second heat exchange plate 602 to reduce the risk of leakage of the heat exchange medium in the heat exchange channel 603. The sealing component 9 can connect the first heat exchange plate 601 and the second heat exchange plate 602 using a combination of self-piercing riveting and sealant. Self-piercing riveting (SPR) is a cold connection process that connects two or more layers of plates of different materials through rivets. This process uses components such as a punch, a pressure ring, a die, and a rivet to penetrate the rivet into the plate, so that the rivet forms a firm mechanical interlocking structure with the first heat exchange plate 601 and the second heat exchange plate 602.

[0053] In the technical solution of the embodiment of the present application, a heat exchange component 6 is provided to exchange heat with the battery cell 7, thereby improving the heat exchange efficiency of the battery cell 7 and improving the stability of its operation. The connector 801 is used to transmit the electrical energy of the battery cell 7. A sealing component 9 is provided around the electrical connection component 8, which can improve the connection strength of the heat exchange component 6 near the electrical connection component 8 and improve the sealing performance of the heat exchange component 6, thereby improving the stability of the operation of the battery 2.

[0054] In some embodiments of the present application, the sealing assembly 9 includes a plurality of sealing nails 901 arranged at intervals along the circumference of the electrical connection assembly 8. In the above technical solution, by providing a plurality of sealing nails 901 to connect the first heat exchange plate 601 and the second heat exchange plate 602, the connection strength of the heat exchange assembly 6 around the electrical connection assembly 8 is improved, the influence of the electrical connection assembly 8 on the sealing performance of the heat exchange assembly 6 is reduced, and the structural stability of the heat exchange assembly 6 is improved.

[0055] like Figure 7 As shown, in some embodiments of the present application, the sealing nail 901 includes a nail cap 902 and a plurality of nail claws 903. The nail cap 902 is disposed on the side of the heat exchange assembly 6 away from the battery cell 7. A plurality of nail claws 903 are arranged at intervals along the circumference of the nail cap 902, and the nail claws 903 penetrate the heat exchange assembly 6 along the thickness direction of the heat exchange assembly 6 to connect the first heat exchange plate 601 and the second heat exchange plate 602, and the nail claws 903 and the nail cap 902 are an integrally formed structure. In the above technical solution, a plurality of nail claws 903 are provided to connect the first heat exchange plate 601 and the second heat exchange plate 602, thereby improving the connection strength between the first heat exchange plate 601 and the second heat exchange plate 602. The sealing performance of the heat exchange assembly 6 is improved. And the integrally formed structure improves the manufacturing efficiency of the sealing nail 901, thereby improving the production efficiency of the battery 2.

[0056] like Figure 6 As shown, in some embodiments of the present application, the box 5 further includes a support plate 54, which is disposed on the side of the heat exchange assembly 6 away from the battery cell 7, and the sealing assembly 9 penetrates the support plate 54 along the thickness direction of the support plate 54 and connects the support plate 54 and the heat exchange assembly 6. In the above structure, the support plate 54 is provided to improve the support strength of the box 5 for the battery cell 7, and the stability of the operation of the battery cell 7 is improved, and the sealing assembly 9 connects the support plate 54 and the heat exchange assembly 6, which improves the strength of the connection between the support plate 54 and the heat exchange assembly 6 and the stability of the overall structure of the box 5.

[0057] In some embodiments of the present application, the sealing assembly 9 further includes a sealing layer, which is disposed between the heat exchange assembly 6 and the support plate 54. Exemplarily, the sealing layer includes a sealant. By providing the sealing layer, the sealing performance between the support plate 54 and the heat exchange assembly 6 is further improved.

[0058] like Figure 6 as well as Figure 7As shown, in some embodiments of the present application, the box body 5 also includes a frame body 55 and a first connector 56. The support plate 54 and the heat exchange assembly 6 are connected to the frame body 55, and the frame body 55 and the heat exchange assembly 6 together enclose a receiving cavity for accommodating the battery cell 7. The first connector 56 connects the frame body 55 and the heat exchange assembly 6. Among them, the sealing assembly 9 is arranged between the electrical connection assembly 8 and the first connector 56. In the above structure, by providing the first connector 56, the frame body 55 and the box body 5 are connected to improve the overall structural strength of the box body 5, and the sealing assembly 9 is arranged between the electrical connection assembly 8 and the first connector 56, which improves the sealing performance between the electrical connection assembly 8 and the heat exchange assembly 6.

[0059] In some embodiments of the present application, the housing 5 further includes a second connector 57, which is used to connect the heat exchange assembly 6 and the support plate 54, and the sealing assembly 9 is disposed between the electrical connection assembly 8 and the second connector 57. By providing the second connector 57, the sealing performance between the electrical connection assembly 8 and the support plate 54 is improved.

[0060] Optionally, the first connector 56 and the second connector 57 may use an FDS integral connection structure. FDS (Friction Drive Staking) integral connection is a commonly used connection process, which uses rivets to connect two or more parts together through the friction drive principle. This process is usually used to connect metal plates. The above structure has the characteristics of high assembly efficiency and stable structural strength.

[0061] like Figure 4 As shown, in some embodiments of the present application, the electrical connection assembly 8 includes at least one of a connector 801 or an output pole base 802. By providing the electrical connection assembly 8, the electrical energy of the battery cell 7 can be conducted.

[0062] The embodiment of the present application provides a battery 2, which includes the box body 5 and the battery cell 7 in the above embodiment, and the battery cell 7 is arranged in the box body 5. The embodiment of the present application also provides an electrical device, which includes the battery 2 in the above embodiment, and the battery 2 is used to provide electrical energy. In the battery 2 and the electrical device, a heat exchange component 6 is provided to exchange heat with the battery cell 7 to improve the heat exchange efficiency of the battery cell 7 to improve its operating stability, and the electrical connection component 8 is used to transmit the electrical energy of the battery cell 7. In addition, a sealing component 9 is provided around the electrical connection component 8 to improve the connection strength of the heat exchange component 6 near the electrical connection component, improve the sealing performance of the heat exchange component 6, and thus improve the operating stability of the battery 2.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A box (5), characterized in that: include: A heat exchange assembly (6) comprising a first heat exchange plate (601) and a second heat exchange plate (602) which are stacked, a heat exchange channel (603) being provided between the first heat exchange plate (601) and the second heat exchange plate (602), the heat exchange channel (603) being used for exchanging heat with a battery cell (7); An electrical connection component (8) connected to the heat exchange component (6), the electrical connection component (8) being used to be electrically connected to the battery cell (7); A sealing component (9) is arranged along the circumference of the electrical connection component (8), and the sealing component (9) penetrates and connects the first heat exchange plate (601) and the second heat exchange plate (602) along the thickness direction of the heat exchange component (6).

2. The box (5) according to claim 1, characterized in that: The sealing assembly (9) comprises a plurality of sealing pins (901) arranged at intervals along the circumference of the electrical connection assembly (8).

3. The box (5) according to claim 2, characterized in that: The sealing nail (901) comprises: A nail cap (902) is arranged on a side of the heat exchange component (6) facing away from the battery cell (7); A plurality of nail claws (903) are arranged at intervals along the circumference of the nail cap (902); the nail claws (903) penetrate the heat exchange component (6) along the thickness direction of the heat exchange component (6) to connect the first heat exchange plate (601) and the second heat exchange plate (602); the nail claws (903) and the nail cap (902) are an integrally formed structure.

4. The box (5) according to any one of claims 1 to 3, characterized in that: The box body (5) further comprises a support plate (54), wherein the support plate (54) is arranged on a side of the heat exchange assembly (6) away from the battery cell (7), and the sealing assembly (9) penetrates the support plate (54) along the thickness direction of the support plate (54) and connects the support plate (54) and the heat exchange assembly (6).

5. The box (5) according to claim 4, characterized in that: The sealing component (9) further comprises a sealing layer, wherein the sealing layer is arranged between the heat exchange component (6) and the support plate (54).

6. The box (5) according to claim 4, characterized in that: The box (5) also includes: A frame (55), the support plate (54) and the heat exchange assembly (6) are connected to the frame (55), and the frame (55) and the heat exchange assembly (6) together enclose a receiving cavity for receiving the battery cell (7); A first connecting member (56) connects the frame (55) and the heat exchange assembly (6). Wherein, the sealing component (9) is arranged between the electrical connection component (8) and the first connecting member (56).

7. The box (5) according to claim 6, characterized in that: The box body (5) further comprises a second connecting member (57), wherein the second connecting member (57) is used to connect the heat exchange component (6) and the support plate (54), and the sealing component (9) is arranged between the electrical connection component (8) and the second connecting member (57).

8. The box (5) according to any one of claims 1 to 3, characterized in that: The electrical connection assembly (8) comprises at least one of a connector (801) or an output pole base (802).

9. A battery (2), characterized in that: include: The box (5) according to any one of claims 1 to 8, and A battery cell (7), wherein the battery cell (7) is arranged in the box body (5).

10. An electrical device, characterized in that: The electrical device comprises the battery (2) as claimed in claim 9, and the battery (2) is used to provide electrical energy.

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