Battery box body, battery and electric equipment

Abstract

The utility model relates to the technical field of battery manufacturing, and particularly discloses a battery box body, a battery and electric equipment.The battery box body comprises a first structural part, a second structural part and a pull riveting part, the first structural part and the second structural part are arranged in a stacked mode, and the pull riveting part comprises a flange, a first sealing structure, a second sealing structure and a connecting body with a deformable area; the connecting body penetrates through the first structure and the second structure part, the flange is connected with the connecting body and abuts against the first side face, away from the second structure part, of the first structure part, and the first sealing structure is clamped between the flange and the first side face. The deformation convex ring abuts against the second side face, away from the first structural part, of the second structural part, and at least part of the second sealing structure is clamped between the deformation convex ring and the second side face. The first sealing structure and the second sealing structure are used for conducting double-side sealing on the connecting position of the first structural part and the second structural part, and the sealing effect of the connecting position is improved.

Description

Technical Field

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

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] With the development of new energy, more and more fields are using new energy as a power source. Due to its advantages such as high energy density, rechargeable, safe and environmentally friendly, batteries are widely used in new energy vehicles, consumer electronics, energy storage systems and other fields.

[0004] The battery includes a battery case, which includes multiple structural members and is formed by connecting the multiple structural members. There are usually multiple structural members at the connection position, and the multiple structural members are connected by rivet nuts. However, the sealing effect of the connection position is not good, which reduces the safety of the battery. Utility Model Content

[0005] In view of the above problems, the present application provides a battery case, a battery and an electrical device, which solve the problem of poor sealing effect at the connection positions of multiple structural parts in the existing battery case.

[0006] The first aspect of the present application provides a battery box, the battery box comprising:

[0007] a first structural member;

[0008] A second structural member, the first structural member and the second structural member are stacked;

[0009] A rivet, the rivet includes a flange, a first sealing structure, a second sealing structure and a connector with a deformable area, the connector passes through the first structure and the second structure, the flange is connected to the connector and abuts against the first side of the first structure facing away from the second structure, the first sealing structure is clamped between the flange and the first side of the first structure, the deformable area includes a deformable convex ring, the deformable convex ring abuts against the second side of the second structure facing away from the first structure, and at least part of the second sealing structure is clamped between the deformable convex ring and the second side of the second structure.

[0010] The first structural member and the second structural member are riveted together by a rivet, wherein a first sealing structure is provided at a position where the first structural member and the flange of the rivet are combined, and a second sealing structure is provided at a position where the second structural member and the deformation convex ring are combined. The first sealing structure and the second sealing structure are used to perform double-sided sealing on a connection position between the first structural member and the second structural member, thereby improving the sealing effect of the connection position. When the battery box is used for a battery, the safety of the battery can be improved.

[0011] In some embodiments of the present application, the first sealing structure includes a first sealing adhesive layer, and the first sealing adhesive layer is arranged on the side of the flange facing the first structural member. The first sealing adhesive layer is arranged on the flange, and after the rivet fixes the first structural member and the second structural member, the flange abuts against the first structural member. By arranging the first sealing adhesive layer on the side of the flange facing the first structural member, the rivet can automatically seal the flange and the first structural member after being riveted, thereby reducing the assembly process and improving the production rhythm. In addition, the first sealing adhesive layer has better sealing performance, which can further improve the sealing effect of the connection position, and the cost of the first sealing adhesive layer is low, which can effectively reduce the manufacturing cost.

[0012] In some embodiments of the present application, the first structural member includes a first rivet hole, a portion of the connector is disposed through the first rivet hole, and the first sealant layer is disposed around the circumference of the first rivet hole. By disposing the first sealant layer around the first rivet hole, the circumferential sealing of the first rivet hole can be achieved, further improving the sealing effect of the connection position.

[0013] In some embodiments of the present application, the first sealant layer forms a first sealant ring outside the first rivet hole, and the inner edge of the first sealant ring is flush with or spaced from the opening of the first rivet hole. By arranging the first sealant layer in the first direction, the position of the first sealant layer is adapted to the position of the first rivet hole, so as to achieve effective sealing of the circumference of the first rivet hole, and further improve the sealing effect of the connection position.

[0014] In some embodiments of the present application, the size of the first sealant layer is in the range of 5 mm to 20 mm along the first direction, and the first direction is perpendicular to the direction of the central axis of the connector. By setting the size of the first sealant layer in the first direction, the first sealant layer has a sufficient width in the first direction, and can form a good seal on the circumference of the first rivet hole, further improving the sealing effect on the connection position.

[0015] In some embodiments of the present application, the linker comprises:

[0016] a first portion, the flange being connected to one end of the first portion;

[0017] a second portion, wherein the deformable region is formed on at least a portion of the second portion, and one end of the second portion is connected to the other end of the first portion;

[0018] The third part, the third part is connected to the other end of the second part.

[0019] By configuring the connector so that it has a sufficient size, the connection requirements between the first structural member and the second structural member can be effectively met, so that the connection position has sufficient connection strength, thereby reducing the problem of loosening or falling off.

[0020] In some embodiments of the present application, the second sealing structure includes a second sealing adhesive layer, and at least part of the side of the deformed convex ring facing the second structural member is provided with a second sealing adhesive. After the rivet fixes the first structural member and the second structural member by rivet fixing, the deformed convex ring abuts against the second structural member, and by providing a second sealing adhesive layer on the side of the deformed convex ring facing the second structural member, the deformed convex ring and the second structural member can be automatically sealed after the rivet fixes, thereby reducing the assembly process and improving the production rhythm. In addition, the second sealing adhesive layer has better sealing performance, which can further improve the sealing effect of the connection position, and the cost of the second sealing adhesive layer is low, which can effectively reduce the manufacturing cost.

[0021] In some embodiments of the present application, the second structural member includes a second rivet hole, a portion of the connector is inserted through the second rivet hole, and the second sealant layer is disposed around the circumference of the second rivet hole. By disposing the second sealant layer around the second rivet hole, the circumferential sealing of the second rivet hole can be achieved, further improving the sealing effect of the connection position.

[0022] In some embodiments of the present application, the second sealant layer forms a second sealant ring on the outside of the second rivet hole, the inner edge of the second sealant ring, the second sealant layer and the opening of the second rivet hole are flush or spaced apart, and the first direction is perpendicular to the direction of the central axis of the connector. By arranging the second sealant layer in the first direction, the position of the second sealant layer is adapted to the position of the second rivet hole, so as to achieve effective sealing of the circumference of the second rivet hole, and further improve the sealing effect of the connection position.

[0023] In some embodiments of the present application, the size of the first sealant layer is in the range of 5 mm to 10 mm along the first direction, and the first direction is perpendicular to the direction of the central axis of the connector. By setting the size of the second sealant layer in the first direction, the second sealant layer has a sufficient width in the first direction, and can form a good seal on the circumference of the second rivet hole, further improving the sealing effect on the connection position.

[0024] In some embodiments of the present application, along the second direction, the size of the second sealant layer is greater than or equal to half of the size of the deformable area, and the second direction is parallel to the direction of the central axis of the connector. By setting the size of the second sealant layer in the second direction, after the rivet is riveted to the first structural member and the second structural member, the deformable convex ring formed in the deformable area has a second sealant layer, so that the second sealant layer can be used to achieve sealing between the deformable convex ring and the second structural member, thereby improving the sealing effect of the connection position.

[0025] In some embodiments of the present application, along the second direction, the size of the first sealant layer ranges from 5 mm to 10 mm, and the second direction is parallel to the direction of the central axis of the connector;

[0026] And / or, along the second direction, the size of the second sealant layer ranges from 5 mm to 10 mm, and the second direction is parallel to the direction of the central axis of the connector.

[0027] By setting the thickness of the first sealant layer, the first structural member and the flange are effectively sealed, and the amount of the first sealant layer can be reduced to reduce the manufacturing cost, and the problem of the first sealant layer overflowing due to extrusion can also be reduced. In addition, by setting the thickness of the second sealant layer, the second structural member and the deformable convex ring are effectively sealed, and the amount of the second sealant layer can be reduced to reduce the manufacturing cost, and the problem of the second sealant layer overflowing due to extrusion can also be reduced.

[0028] In some embodiments of the present application, the battery case further includes a third structural member and a connecting member, the third structural member is located on the side of the first structural member away from the second structural member, the third structural member is stacked with the first structural member, and one end of the connecting member passes through the third structural member and is connected to the connecting body. The connection position of the first structural member and the second structural member fixed by rivets is effectively sealed, and then the third structural member is fixed to the connecting body of the rivet member by the connecting member, which reduces the impact on the sealing structure of the rivet position on the basis of achieving the connection and fixation of the third structural member, thereby improving the sealing performance of the connection position.

[0029] In some embodiments of the present application, a threaded hole is provided on the connector, and the connector is a connecting bolt, which is threadedly connected to the threaded hole. The connection between the bolt and the threaded hole is simple in structure, convenient for operation during assembly, and effectively improves assembly efficiency. In addition, the threaded connection between the bolt and the threaded hole has high structural strength, which can effectively improve the stability of the structure.

[0030] In some embodiments of the present application, the first structural member is a frame of the battery box, the second structural member is a heat exchange plate of the battery box, and the third structural member is a bottom protective plate of the battery box.

[0031] The first structural member, the second structural member, the third structural member and the fourth structural member are respectively set as a frame, a heat exchange plate and a bottom protective plate, so that the connection position of the bottom structure forming the battery box has good sealing performance, and when the battery box is used for a battery, the safety performance of the battery can be effectively improved.

[0032] A second aspect of the present application provides a battery, comprising a battery case as described above.

[0033] A third aspect of the present application provides an electrical device, which includes a battery as described above.

[0034] 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

[0035] Figure 1 A schematic diagram of the structure of a vehicle according to an embodiment of the present application is shown schematically;

[0036] Figure 2 Schematically shows a schematic structural diagram of a battery according to an embodiment of the present application;

[0037] Figure 3 The structure diagram of the second part of the battery box according to one embodiment of the present application is schematically shown;

[0038] Figure 4 for Figure 3 A schematic structural diagram of another perspective of the second part shown in FIG.

[0039] Figure 5 for Figure 4 A schematic structural diagram of the AA section of the second part shown in FIG.

[0040] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of part B in the structure shown in FIG.

[0041] Figure 7 The figure schematically shows a structural diagram of a rivet according to an embodiment of the present application;

[0042] Figure 8 for Figure 7 The schematic diagram of the structure of the rivet after being riveted is shown in FIG.

[0043] The reference numerals are as follows:

[0044] 1000. Vehicles;

[0045] 100. Battery;

[0046] 10. Battery box;

[0047] 11. Part I;

[0048] 12. Part II;

[0049] 121, a first structural member; 122, a second structural member; 123, a third structural member;

[0050] 13. Connectors;

[0051] 14. Rivet parts;

[0052] 141, threaded hole; 142, connector; 1421, third part; 1422, second part; 14221, deformable convex ring; 1423, first part; 143, second sealing structure; 144, first sealing structure; 145, flange;

[0053] 200, controller;

[0054] 300, motor;

[0055] a, central axis of the connector; X, second direction; Y, first direction. DETAILED DESCRIPTION

[0056] The following embodiments of the technical solution of the present application are 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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).

[0062] 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.

[0063] 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.

[0064] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0065] In the prior art, a battery includes a battery case, which includes a plurality of structural members connected by the plurality of structural members. A plurality of structural members are usually provided at a connection position, and the plurality of structural members are connected by rivet nuts. However, the sealing effect at the connection position is poor, which reduces the safety of the battery.

[0066] In the present application, a battery case includes a first structural member, a second structural member and a rivet, wherein the first structural member and the second structural member are stacked, the rivet includes a flange, a first sealing structure, a second sealing structure and a connector having a deformable area, the connector is arranged through the first structure and the second structural member, the flange is connected to the connector and abuts against the first side of the first structural member away from the second structural member, the first sealing structure is sandwiched between the flange and the first side of the first structural member, the deformable area includes a deformable convex ring, the deformable convex ring abuts against the second side of the second structural member away from the first structural member, and at least part of the second sealing structure is sandwiched between the deformable convex ring and the second side of the second structural member. The first structural member and the second structural member are riveted together by the rivet, wherein the first sealing structure is provided at the position where the first structural member and the flange of the rivet are combined, and the second sealing structure is provided at the position where the second structural member and the deformable convex ring are combined, and the first sealing structure and the second sealing structure are used to perform double-sided sealing on the connection position of the first structural member and the second structural member, thereby improving the sealing effect of the connection position, and when the battery case is used for a battery, the safety of the battery can be improved.

[0067] The battery involved in the embodiment of the present application can be used in, but not limited to, electrical devices such as vehicles, ships or aircraft. A power supply system comprising the battery cells, batteries, etc. involved in the present application can be used to form the electrical device.

[0068] In the embodiments of the present application, the electric devices using batteries as power sources may be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0069] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electrical equipment described above, but can also be applied to all batteries including a box and electrical equipment using the battery. However, for the sake of simplicity, the following embodiments are described using electric vehicles as an example.

[0070] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 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 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

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

[0072] In some embodiments of the present application, the battery 100 may include a plurality of battery assemblies and a battery case 10, and the plurality of battery assemblies are contained inside the battery case 10 to reduce the effect of liquid or other foreign matter on the charging or discharging of the battery 100. The battery assembly may include a plurality of battery cells, and the battery cell refers to the smallest unit constituting the battery assembly. A plurality of battery cells may be connected in series and / or in parallel via electrode terminals for application in various applications. The battery cell may include but is not limited to lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries. In addition, the shape of the battery cell may include but is not limited to a cylinder, a flat body, a cuboid, or other shapes. The battery case 10 may be a simple three-dimensional structure such as a single cuboid, a cylinder, or a sphere, or a complex three-dimensional structure composed of simple three-dimensional structures such as a cuboid, a cylinder, or a sphere. The material of the battery case 10 may be an alloy material such as an aluminum alloy, an iron alloy, or a polymer material such as polycarbonate, polyisocyanurate foam plastic, or a composite material such as glass fiber and epoxy resin.

[0073] In some embodiments of the present application, Figure 2 As shown, the battery box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a space for accommodating the battery assembly. The second part 12 may be a hollow structure with one end open, and the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a space for accommodating the battery assembly; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12.

[0074] The following is a specific description by taking the example that the second part 12 may be a hollow structure with one end open and the first part 11 may be a plate-like structure.

[0075] In some embodiments of the present application, Figures 2 to 8 As shown, a battery case 10 is proposed, the battery case 10 includes a first structural member 121, a second structural member 122 and a rivet 14, the first structural member 121 and the second structural member 122 are stacked, the rivet 14 includes a flange 145, a first sealing structure 144, a second sealing structure 143 and a connector 142 with a deformable zone, the connector 142 passes through the first structure and the second structural member 122, the flange 145 is connected to the connector 142 and abuts against a first side surface of the first structural member 121 away from the second structural member 122, the first sealing structure 144 is clamped between the flange 145 and the first side surface of the first structural member 121, the deformable zone includes a deformation convex ring 14221, the deformation convex ring 14221 abuts against the second side surface of the second structural member 122 away from the first structural member 121, and at least part of the second sealing structure 143 is clamped between the deformation convex ring 14221 and the second side surface of the second structural member 122.

[0076] In the present application, the rivet 14 refers to a device (rivet gun, etc.) that applies force to the rivet 14 when at least two parts are connected through the rivet 14, so that part of the structure of the rivet 14 is deformed, thereby forming a protruding structure. The protruding structure and the limiting flange of the rivet 14 are respectively abutted against opposite sides of the connection position, thereby achieving rivet fixation.

[0077] The flange 145 refers to a protruding structure provided on the outer peripheral surface of the connecting body 142, wherein the flange 145 is provided along the circumferential direction of the connecting body 142 and covers the entire circumference of the connecting body 142. When the rivet 14 is riveted, the flange 145 abuts against one side of the structural member to fix the structural member by limiting the position.

[0078] The deformable area refers to an area formed on the connector 142, which can be deformed and form a deformed convex ring 14221 under the action of the riveting device. The area covers a circle along the circumferential direction of the connector 142, and at the same time, the area has a certain length along the axial direction of the connector 142. Under the action of the riveting device, the deformable area is acted upon by force, and at least part of the deformable area bulges outward, thereby forming a deformed convex ring 14221. In addition, the deformable area can be provided on the connector 142 by thinning the material or providing a weakened structure (such as a gap).

[0079] The deformable area is formed by riveting a deformable protruding ring 14221, which is arranged along the circumferential direction of the connecting body 142 and covers the entire circumference of the connecting body 142. The deformable protruding ring 14221 and the flange 145 are respectively pressed against opposite sides of the connecting position to fix the connecting position.

[0080] In addition, the first sealing structure 144 is sandwiched between the flange 145 and the first structural member 121, which means that after the rivet member 14 rivets the first structural member 121 and the second structural member 122, the flange 145 abuts against the first structural member 121, and the first sealing structure 144 is arranged at the junction of the flange 145 and the first structural member 121, and the first sealing structure 144 surrounds the flange 145, thereby sealing the junction between the flange 145 and the first structural member 121. Similarly, the second sealing structure 143 is sandwiched between the deformation convex ring 14221 and the second structural member 122, which means that after the rivet member 14 rivets the first structural member 121 and the second structural member 122, the deformation convex ring 14221 abuts against the second structural member 122, and the second sealing structure 143 is arranged at the junction of the deformation convex ring 14221 and the second structural member 122, and the second sealing structure 143 surrounds the deformation convex ring 14221, thereby sealing the junction between the deformation convex ring 14221 and the second structural member 122.

[0081] In the prior art, after the connection positions of multiple structural members are fixed by riveting, the connection positions are sealed only on one side by applying sealant. Since the connection position has multiple stacked structural members, the single-sided sealed structure is prone to inadequate sealing or sealing failure due to vibration and the like, resulting in poor sealing effect at the connection position.

[0082] In this application, if Figure 6 As shown, the first structural member 121 and the second structural member 122 are riveted together by the rivet 14, wherein a first sealing structure 144 is provided at the position where the first structural member 121 is combined with the flange 145 of the rivet 14, and a second sealing structure 143 is provided at the position where the second structural member 122 is combined with the deformation convex ring 14221. The first sealing structure 144 and the second sealing structure 143 are used to perform double-sided sealing on the connection position between the first structural member 121 and the second structural member 122, thereby improving the sealing effect of the connection position. When the battery case 10 is used for the battery 100, the safety of the battery 100 can be improved.

[0083] It should be noted that the connector 142 is a columnar structure, and the cross section of the columnar structure can be circular, square, triangular, pentagonal, hexagonal or elliptical, etc. In the present application, the connector 142 is a cylindrical structure.

[0084] In addition, the flange 145 is arranged on the outer peripheral surface of the connecting body 142 which is a cylindrical structure. Along the axial direction of the cylindrical structure, the flange 145 can be located at one end of the cylindrical structure or in the area between the two ends of the cylindrical structure. In addition, the flange 145 is a plate-like structure. The flange 145 which is a plate-like structure and the connecting body 142 can be an integrated structure to improve the convenience of processing; the flange 145 which is a plate-like structure and the connecting body 142 can also be a split structure. The two are connected together after independent processing. The connection method includes but is not limited to bonding, bonding, clamping or fastener connection. The flange 145 of the plate-like structure and the connecting body 142 are arranged as a split structure, which reduces the difficulty of processing and improves the convenience of processing.

[0085] In some embodiments of the present application, Figures 6 to 8 As shown, the first sealing structure 144 includes a first sealing adhesive layer, and the first sealing adhesive layer is disposed on the side of the flange 145 facing the first structural member 121 .

[0086] Specifically, the flange 145 of the rivet 14 has a side facing the first structural member 121, and the first sealing structure 144 is arranged on the side, wherein the first sealing structure 144 includes a first sealant layer, and the sealant is arranged on the side of the flange 145 facing the first structural member 121 by coating, thereby forming a first sealant layer. The first sealant layer can be arranged when the rivet 14 is manufactured, and can also be arranged before the rivet 14 is riveted and fixed.

[0087] In the present application, the first sealing adhesive layer is arranged on the flange 145. After the rivet member 14 rivets the first structural member 121 and the second structural member 122, the flange 145 abuts against the first structural member 121. By arranging the first sealing adhesive layer on the side of the flange 145 facing the first structural member 121, the rivet member 14 can automatically seal the flange 145 and the first structural member 121 after being riveted, thereby reducing the assembly process and improving the production rhythm.

[0088] In addition, the first sealant layer has a certain flexibility, and the first sealant layer is squeezed by the first structural member 121 and the flange 145, so that the first sealant layer is deformed to effectively fill the joint position between the flange 145 and the first structural member 121, so as to achieve the seal between the flange 145 and the first structural member 121. The first sealant layer has a good sealing performance, which can further improve the sealing effect of the connection position, and the cost of the first sealant layer is low, which can effectively reduce the manufacturing cost.

[0089] In some embodiments of the present application, the first structural member 121 includes a first rivet hole, a portion of the connector 142 is passed through the first rivet hole, and the first sealant layer is disposed around the circumference of the first rivet hole.

[0090] Specifically, the first rivet hole is opened on the first structural member 121, and the shape of the first rivet hole is adapted to the shape of the connecting body 142. The connecting body 142 can pass through the first rivet hole, and the flange 145 cannot pass through the first rivet hole. When the first structural member 121 and the second structural member 122 are connected and fixed by the rivet member 14, the connecting body 142 is passed through the first rivet hole so that the flange 145 abuts against the first structural member 121. When the rivet member 14 is riveted and fixed by the riveting equipment, a deformation convex ring 14221 is formed in the deformable area of ​​the connecting body 142, and the deformation convex ring 14221 abuts against the side of the second structural member 122 away from the first structural member 121. The flange 145 and the deformation convex ring 14221 are used to realize the riveting and fixing of the first structural member 121 and the second structural member 122.

[0091] The first sealing structure 144 is clamped between the flange 145 and the first structural member 121, and the first sealing structure 144 is used to seal the joint position between the flange 145 and the first structural member 121. The second sealing structure 143 is clamped between the deformation convex ring 14221 and the second structural member 122, and the second sealing structure 143 is used to seal the joint position between the deformation convex ring 14221 and the second structural member 122.

[0092] The first rivet hole is a connection position. If the sealing effect of the first rivet hole is not good, it is easy to cause poor sealing effect of the entire battery box 10. In the present application, the first sealant layer is arranged along the circumference of the first rivet hole, and the first sealant layer covers the circumference of the first rivet hole. By arranging the first sealant layer around the first rivet hole, the circumferential sealing of the first rivet hole can be achieved, and the sealing effect of the connection position is further improved.

[0093] It should be pointed out that the first sealing adhesive layer forms an adhesive ring structure on the outside of the first rivet hole, and the adhesive ring structure is coaxially arranged with the first rivet hole. By arranging the two to be coaxial, a uniform and stable sealing structure can be formed on the circumference of the first rivet hole, so that the sealing performance can be effectively improved.

[0094] In some embodiments of the present application, the first sealing adhesive layer forms a first adhesive ring on the outer side of the first rivet hole, and the inner edge of the first adhesive ring is flush with or spaced apart from the opening of the first rivet hole.

[0095] Specifically, when the inner edge of the first rubber ring formed by the first sealant layer is set to be flush with the opening of the first rivet hole and the outer edge of the first rubber ring is set to be flush with the edge of the flange 145, the sealing performance of the first rubber ring formed by the first sealant layer is optimal.

[0096] When the inner edge of the first rubber ring formed by the first sealing rubber layer is arranged to be spaced apart from the opening of the first rivet hole, and the outer edge of the first rubber ring is arranged to be flush with or spaced apart from the edge of the flange 145, at this time, while achieving the sealing of the first structural member 121 and the flange 145, the amount of the first sealing rubber layer can be effectively reduced, so that the manufacturing cost can be effectively reduced.

[0097] In the present application, by setting the position between the first rubber ring and the first rivet hole, the position of the first sealing rubber layer is adapted to the position of the first rivet hole, so as to achieve effective sealing of the circumference of the first rivet hole and further improve the sealing effect of the connection position.

[0098] In some embodiments of the present application, Figure 6 As shown, along the first direction Y, the size of the first sealant layer ranges from 5 mm to 20 mm, and the first direction Y is perpendicular to the direction of the central axis a of the connector 142 .

[0099] Specifically, by setting the size of the first sealant layer in the first direction Y, the first sealant layer has a sufficient width in the first direction Y, which can form a good seal on the circumference of the first rivet hole, further improving the sealing effect on the connection position.

[0100] In addition, by setting the size of the first sealant layer in the first direction Y, the flange 145 and the first structural member 121 can reduce the amount of the first sealant layer while having a good sealing effect, thereby reducing the manufacturing cost.

[0101] In the present application, the size of the first sealant layer in the first direction Y is L1, where the value of L1 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm.

[0102] In some embodiments of the present application, Figures 6 to 8 As shown, the connecting body 142 includes a first part 1423, a second part 1422 and a third part 1421, the flange 145 is connected to one end of the first part 1423, the deformable area is formed on at least a portion of the second part 1422, one end of the second part 1422 is connected to the other end of the first part 1423, and the third part 1421 is connected to the other end of the second part 1422.

[0103] Specifically, the first part 1423, the second part 1422 and the third part 1421 are connected in sequence, wherein the flange 145 is provided on the outer peripheral surface of the first part 1423, and the flange 145 is provided flush with the end of the first part 1423 away from the second part 1422. The deformable area is provided on the second part 1422, and the deformable area may be a part of the second part 1422 or the entire second part 1422.

[0104] In the present application, the entire second portion 1422 is set as a deformable zone, so that the size of the deformable zone can be increased in the axial direction of the connecting body 142, so that when the rivet 14 connects multiple structural members, the deformable zone can pass through the multiple structural members and can be deformed into a deformable convex ring 14221 to achieve rivet fixation of the multiple structural members.

[0105] In addition, by configuring the connector 142 so that the connector 142 has a sufficient size, the connection requirements between the first structural member 121 and the second structural member 122 can be effectively met, so that the connection position has sufficient connection strength, thereby reducing the problem of loosening or falling off.

[0106] In some embodiments of the present application, Figures 6 to 8 As shown, the second sealing structure 143 includes a second sealing adhesive layer, and at least part of the side of the deformable protruding ring 14221 facing the second structural member 122 is provided with the second sealing adhesive.

[0107] Specifically, the second sealing structure 143 includes a second sealant layer, and the sealant is disposed on the deformable area by coating to form the second sealant layer. After the deformable area is riveted to form the deformable convex ring 14221, the side of the deformable convex ring 14221 facing the second structural member 122 has the second sealant layer. The second sealant layer can be disposed when the rivet 14 is manufactured, or before the rivet 14 is riveted and fixed.

[0108] In the present application, after the rivet component 14 rivets the first structural member 121 and the second structural member 122, the deformable convex ring 14221 abuts against the second structural member 122. By providing a second sealing adhesive layer on the side of the deformable convex ring 14221 facing the second structural member 122, it is possible to automatically seal the deformable convex ring 14221 and the second structural member 122 after the rivet component 14 is riveted, thereby reducing the assembly process and improving the production rhythm.

[0109] In addition, the second sealant layer has a certain flexibility, and the second sealant layer is squeezed by the second structural member 122 and the deformable convex ring 14221, so that the second sealant layer is deformed, so as to effectively fill the joint position between the deformable convex ring 14221 and the second structural member 122, so as to achieve the seal between the deformable convex ring 14221 and the second structural member 122. The second sealant layer has a better sealing performance, which can further improve the sealing effect of the connection position, and the cost of the second sealant layer is low, which can effectively reduce the manufacturing cost.

[0110] In some embodiments of the present application, the second structural member 122 includes a second rivet hole, a portion of the connector 142 is passed through the second rivet hole, and the second sealant layer is disposed around the circumference of the second rivet hole.

[0111] Specifically, the second rivet hole is opened on the second structural member 122, and the shape of the second rivet hole is adapted to the shape of the connecting body 142. The connecting body 142 can pass through the second rivet hole, and the deformed convex ring 14221 cannot pass through the second rivet hole. When the first structural member 121 and the second structural member 122 are connected and fixed by the rivet member 14, the connecting body 142 passes through the first rivet hole and the second rivet hole, so that the flange 145 abuts against the first structural member 121. When the rivet member 14 is riveted and fixed by the riveting equipment, a deformed convex ring 14221 is formed in the deformable area of ​​the connecting body 142, and the deformed convex ring 14221 abuts against the side of the second structural member 122 away from the first structural member 121. The first structural member 121 and the second structural member 122 are riveted and fixed by the flange 145 and the deformed convex ring 14221.

[0112] The second sealing structure 143 is clamped between the deformable convex ring 14221 and the second structural member 122, and the first sealing structure 144 is used to seal the joint position between the flange 145 and the first structural member 121. The second sealing structure 143 is clamped between the deformable convex ring 14221 and the second structural member 122, and the second sealing structure 143 is used to seal the joint position between the deformable convex ring 14221 and the second structural member 122.

[0113] The second rivet hole is a connecting position. If the sealing effect of the second rivet hole is not good, it is easy to cause poor sealing effect of the entire battery box 10. In the present application, the second sealant layer is arranged along the circumference of the second rivet hole, and the second sealant layer covers the circumference of the second rivet hole. By arranging the second sealant layer around the second rivet hole, the circumferential sealing of the second rivet hole can be achieved, and the sealing effect of the connection position is further improved.

[0114] It should be pointed out that the second sealing adhesive layer forms an adhesive ring structure on the outside of the second rivet hole, and the adhesive ring structure is coaxially arranged with the second rivet hole. By arranging the two to be coaxial, a uniform and stable sealing structure can be formed on the circumference of the second rivet hole, so that the sealing performance can be effectively improved.

[0115] In some embodiments of the present application, Figures 6 to 8 As shown, the second sealing adhesive layer forms a second adhesive ring on the outer side of the second rivet hole, the inner edge of the second adhesive ring is flush with or spaced apart from the hole opening of the second rivet hole, and the first direction Y is perpendicular to the direction of the central axis a of the connector 142.

[0116] Specifically, when the inner edge of the second rubber ring formed by the second sealing rubber layer is set to be flush with the hole opening of the second rivet hole, and the outer edge of the second rubber ring is set to be flush with the edge of the deformation convex ring 14221, the sealing performance of the second sealing rubber layer is optimal.

[0117] When the inner edge of the second rubber ring formed by the second sealing rubber layer is arranged to be spaced apart from the hole opening of the second rivet hole, and the outer edge of the second rubber ring is arranged to be flush with or spaced apart from the edge of the deformation convex ring 14221, at this time, while achieving the sealing of the second structural member 122 and the deformation convex ring 14221, the amount of the second sealing rubber layer can be effectively reduced, so that the manufacturing cost can be effectively reduced.

[0118] In the present application, by setting the position between the second rubber ring and the second rivet hole, the position of the second sealing rubber layer is adapted to the position of the second rivet hole, so as to achieve effective sealing of the circumference of the second rivet hole and further improve the sealing effect of the connection position.

[0119] In some embodiments of the present application, Figure 6 As shown, the size of the first sealant layer is in the range of 5 mm to 10 mm along the first direction Y. By setting the size of the second sealant layer in the first direction Y, the second sealant layer has a sufficient width in the first direction Y, which can form a good seal around the second rivet hole, further improving the sealing effect on the connection position.

[0120] In addition, by setting the size of the second sealant layer in the first direction Y, the deformable convex ring 14221 and the second structural member 122 can reduce the amount of the second sealant layer while having a good sealing effect, thereby reducing the manufacturing cost.

[0121] In the present application, the size of the second sealant layer in the first direction Y is L2, where the value of L2 can be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, or 10mm.

[0122] In some embodiments of the present application, along the second direction X, the size of the second sealant layer is greater than or equal to half of the size of the deformable area, and the second direction X is parallel to the direction of the central axis a of the connector 142 .

[0123] Specifically, by setting the size of the second sealant layer in the second direction X, the second sealant layer has a sufficient coverage area on the deformable zone, so that after the rivet 14 rivets the first structural member 121 and the second structural member 122, the deformation convex ring 14221 formed in the deformable zone has a second sealant layer, so that the second sealant layer can be used to achieve sealing between the deformation convex ring 14221 and the second structural member 122, thereby improving the sealing effect of the connection position.

[0124] It should be pointed out that in the present application, along the second direction X, the size of the second sealant layer may be 1 / 2, 2 / 3, 3 / 4, 4 / 5, 5 / 6, 6 / 7, 7 / 8, 8 / 9, 9 / 10 of the size of the deformable area, or along the second direction X, the size of the second sealant layer is equal.

[0125] In some embodiments of the present application, the size of the first sealant layer is in the range of 5 mm to 10 mm along the first direction Y, and the second direction Y is parallel to the direction of the central axis a of the connector 142. By setting the size of the first sealant layer in the second direction, the first structural member 121 and the flange 145 are effectively sealed, and the amount of the first sealant layer can be reduced to reduce the manufacturing cost, and the problem of overflow of the first sealant layer due to extrusion can also be reduced.

[0126] It should be pointed out that, in the present application, the thickness of the first sealant layer can be 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or 10 mm.

[0127] In some embodiments of the present application, the size of the second sealant layer is in the range of 5 mm to 10 mm along the first direction Y, and the second direction Y is parallel to the direction of the central axis a of the connector 142. By setting the size of the second sealant layer in the second direction, the amount of the second sealant layer can be reduced on the basis of obtaining an effective seal between the second structural member 122 and the deformable convex ring 14221, so as to reduce the manufacturing cost, and also reduce the problem of overflow of the second sealant layer due to extrusion.

[0128] It should be pointed out that, in the present application, the thickness of the second sealant layer can be 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, or 10 mm.

[0129] In some embodiments of the present application, Figure 6 As shown, the battery case 10 also includes a third structural member 123 and a connecting member 13. The third structural member 123 is located on the side of the first structural member 121 away from the second structural member 122. The third structural member 123 is stacked with the first structural member 121. One end of the connecting member 13 passes through the third structural member 123 and is connected to the connector 142.

[0130] Specifically, the connection position between the first structural member 121 and the second structural member 122 fixed by rivets is effectively sealed, and then the third structural member 123 is fixed on the connecting body 142 of the rivet member 14 through the connecting member 13. On the basis of achieving the connection and fixation of the third structural member 123, the influence on the sealing structure of the rivet position is reduced, thereby improving the sealing performance of the connection position.

[0131] It should be noted that the connection method between the connector 13 and the connector 142 includes but is not limited to bonding, welding, clamping or threaded connection.

[0132] In some embodiments of the present application, Figure 6 As shown, the connecting body 142 is provided with a threaded hole 141, and the connecting member 13 is a connecting bolt, which is threadedly connected to the threaded hole 141. The connection between the bolt and the threaded hole 141 is simple in structure, convenient for operation during assembly, and effectively improves assembly efficiency.

[0133] In addition, the threaded connection between the bolt and the threaded hole 141 has high structural strength, which can effectively improve the stability of the structure.

[0134] In some embodiments of the present application, Figures 3 to 6 As shown, the first structural member 121 is the frame of the battery box 10 , the second structural member 122 is the heat exchange plate of the battery box 10 , and the third structural member 123 is the bottom protective plate of the battery box 10 .

[0135] The first structural member 121, the second structural member 122 and the third structural member 123 are respectively set as a frame, a heat exchange plate and a bottom protective plate, so that the connection position forming the bottom structure of the battery box 10 has good sealing performance, and when the battery box 10 is used for the battery 100, the safety performance of the battery 100 can be effectively improved.

[0136] like Figure 2As shown, the second aspect of the present application proposes a battery 100 , which includes at least one battery case 10 as described above.

[0137] The battery 100 has the battery case 10 as described above, and the beneficial effects of the battery case 10 are the same as the beneficial effects of the battery case 10 as described above, which will not be described in detail in this application.

[0138] like Figure 1 As shown, the third aspect of the present application proposes an electrical device, which includes a battery 100 as described above.

[0139] The electrical device has the battery 100 as described above, and the beneficial effects of the battery 100 are the same as the beneficial effects of the battery 100 as described above, which will not be described in detail in this application.

[0140] 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.

[0141] In the implementation mode of the present application, Figures 2 to 8 As shown, the present application proposes a battery case 10 including a first structural member 121, a second structural member 122 and a rivet 14, wherein the first structural member 121 and the second structural member 122 are stacked, the rivet 14 includes a flange 145, a first sealing structure 144, a second sealing structure 143 and a connector 142 having a deformable zone, the connector 142 passes through the first structure and the second structural member 122, the flange 145 is connected to the connector 142 and abuts against a first side surface of the first structural member 121 away from the second structural member 122, the first sealing structure 144 is clamped between the flange 145 and the first side surface of the first structural member 121, the deformable zone includes a deformation convex ring 14221, the deformation convex ring 14221 abuts against a second side surface of the second structural member 122 away from the first structural member 121, and at least a portion of the second sealing structure 143 is clamped between the deformation convex ring 14221 and the second side surface of the second structural member 122.

[0142] Furthermore, the first sealing structure 144 includes a first sealing layer, which is arranged on the side of the flange 145 facing the first structural member 121, and the second sealing structure 143 includes a second sealing layer, at least the side of the deformation convex ring 14221 facing the second structural member 122 is provided with a second sealing layer.

[0143] Further, the first structural member 121 includes a first rivet hole, a part of the connector 142 is inserted into the first rivet hole, and the first sealant layer is arranged around the circumference of the first rivet hole. The second structural member 122 includes a second rivet hole, a part of the connector 142 is inserted into the second rivet hole, and the second sealant layer is arranged around the circumference of the second rivet hole.

[0144] Furthermore, the first sealing adhesive layer forms a first adhesive ring on the outer side of the first rivet hole, and the inner edge of the first adhesive ring is flush with or spaced apart from the hole opening of the first rivet hole. The second sealing adhesive layer forms a second adhesive ring on the outer side of the second rivet hole, and the inner edge of the second adhesive ring is flush with or spaced apart from the hole opening of the second rivet hole.

[0145] Furthermore, along the first direction Y, the size of the first sealant layer ranges from 5 mm to 20 mm. Along the second direction X, the size of the first sealant layer ranges from 5 mm to 10 mm. The first direction is perpendicular to the direction of the central axis of the connector 142, and the second direction X is parallel to the direction of the central axis a of the connector 142.

[0146] Furthermore, along the first direction Y, the size of the first sealant layer ranges from 5 mm to 10 mm, and along the second direction X, the thickness of the second sealant layer ranges from 5 mm to 10 mm. The second direction X is parallel to the direction of the central axis a of the connector 142 .

[0147] Furthermore, along the second direction X, the size of the second sealant layer is greater than or equal to half of the size of the deformable area, and the second direction X is parallel to the direction of the central axis a of the connector 142 .

[0148] Furthermore, the connecting body 142 includes a first part 1423, a second part 1422 and a third part 1421, the flange 145 is connected to one end of the first part 1423, the deformable area is formed on the second part 1422, one end of the second part 1422 is connected to the other end of the first part 1423, and the third part 1421 is connected to the other end of the second part 1422.

[0149] Furthermore, the battery case 10 further includes a third structural member 123 and a connecting member 13, the third structural member 123 is located on the side of the first structural member 121 away from the second structural member 122, the third structural member 123 and the first structural member 121 are stacked, and one end of the connecting member 13 passes through the third structural member 123 and is connected to the connecting body 142. Among them, the connecting body 142 has a threaded hole 141 on one end with a flange 145, and the connecting member 13 is a connecting bolt, which is threadedly connected to the threaded hole 141.

[0150] Furthermore, the battery case 10 further includes a fourth structural member 122 , which is stacked between the first structural member 121 and the second structural member, and the connector 142 is disposed through the fourth structural member 122 .

[0151] Furthermore, the first structural member 121 is a frame of the battery box 10 , the second structural member 122 is a heat exchange plate of the battery box 10 , and the third structural member 123 is a bottom protective plate of the battery box 10 .

[0152] In the prior art, after the connection positions of multiple structural members are fixed by riveting, the connection positions are sealed only on one side by applying sealant. Since the connection position has multiple stacked structural members, the single-sided sealed structure is prone to inadequate sealing or sealing failure due to vibration and the like, resulting in poor sealing effect at the connection position.

[0153] In the present application, the first structural member 121 and the second structural member 122 are riveted together by a rivet 14, wherein a first sealing structure 144 is provided at the position where the first structural member 121 is combined with the flange 145 of the rivet 14, and a second sealing structure 143 is provided at the position where the second structural member 122 is combined with the deformation convex ring 14221. The first sealing structure 144 and the second sealing structure 143 are used to perform double-sided sealing on the connection position between the first structural member 121 and the second structural member 122, thereby improving the sealing effect of the connection position. When the battery case 10 is used for the battery 100, the safety of the battery 100 can be improved.

[0154] 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 battery box, characterized in that: The battery box comprises: a first structural member; A second structural member, wherein the first structural member and the second structural member are stacked; A rivet, comprising a flange, a first sealing structure, a second sealing structure and a connector having a deformable zone, wherein the connector passes through the first structure and the second structure, the flange is connected to the connector and abuts against a first side of the first structure facing away from the second structure, the first sealing structure is clamped between the flange and the first side of the first structure, the deformable zone comprises a deformable convex ring, the deformable convex ring abuts against a second side of the second structure facing away from the first structure, and at least a portion of the second sealing structure is clamped between the deformable convex ring and the second side of the second structure.

2. The battery box according to claim 1, characterized in that: The first sealing structure includes a first sealing adhesive layer, and the first sealing adhesive layer is arranged on the side of the flange facing the first structural member.

3. The battery case according to claim 2, characterized in that: The first structural member includes a first rivet hole, a portion of the connector is passed through the first rivet hole, and the first sealant layer is arranged around the circumference of the first rivet hole.

4. The battery case according to claim 3, characterized in that: The first sealing adhesive layer forms a first adhesive ring on the outer side of the first rivet hole, and the inner edge of the first adhesive ring is flush with or spaced from the opening of the first rivet hole.

5. The battery case according to claim 4, characterized in that: Along the first direction, the size of the first sealant layer ranges from 5 mm to 20 mm, and the first direction is perpendicular to the direction of the central axis of the connector.

6. The battery case according to claim 2, characterized in that: The connector comprises: a first portion, the flange being connected to one end of the first portion; a second portion, the deformable region being formed on at least a portion of the second portion, and one end of the second portion being connected to the other end of the first portion; The third part is connected to the other end of the second part.

7. The battery case according to claim 6, characterized in that: The second sealing structure comprises a second sealing adhesive layer, and the second sealing adhesive is disposed on at least a portion of the side surfaces of the deformable convex ring facing the second structural member.

8. The battery case according to claim 7, characterized in that: The second structural member includes a second rivet hole, a portion of the connector is passed through the second rivet hole, and the second sealant layer is arranged around the circumference of the second rivet hole.

9. The battery case according to claim 8, characterized in that: The second sealing adhesive layer forms a second adhesive ring on the outer side of the second rivet hole, and the inner edge of the second adhesive ring is flush with or spaced from the opening of the second rivet hole.

10. The battery case according to claim 9, characterized in that: Along the first direction, the size of the first sealant layer ranges from 5 mm to 10 mm, and the first direction is perpendicular to the direction of the central axis of the connector.

11. The battery case according to claim 7, characterized in that: Along the second direction, the size of the second sealant layer is greater than or equal to half of the size of the deformable area, and the second direction is parallel to the direction of the central axis of the connector.

12. The battery case according to claim 7, characterized in that: Along the second direction, the size of the first sealant layer ranges from 5 mm to 10 mm, and the second direction is parallel to the direction of the central axis of the connector; And / or, along the second direction, the size of the second sealant layer ranges from 5 mm to 10 mm, and the second direction is parallel to the direction of the central axis of the connector.

13. The battery case according to any one of claims 1 to 12, characterized in that: The battery box also includes a third structural member and a connecting member. The third structural member is located on a side of the first structural member away from the second structural member. The third structural member is stacked with the first structural member. One end of the connecting member passes through the third structural member and is connected to the connecting body.

14. The battery case according to claim 13, characterized in that: The connecting body is provided with a threaded hole, and the connecting piece is a connecting bolt, which is threadedly connected with the threaded hole.

15. The battery case according to claim 13, characterized in that: The first structural member is the frame of the battery box, the second structural member is the heat exchange plate of the battery box, and the third structural member is the bottom protective plate of the battery box.

16. A battery, characterized in that: The battery comprises a battery case according to any one of claims 1 to 15.

17. An electrical equipment, characterized in that: The electric device comprises the battery according to claim 16.

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