Energy storage device and housing thereof

Abstract

An energy storage device and a housing thereof. The housing of the energy storage device comprises a housing body (10), a grounding adapter assembly (20) and a grounding connector (30). A grounding portion of a battery pack is electrically connected to a second docking member (23) by means of the grounding connector (30), and accesses a grounding network outside the housing body (10) by means of a first docking member (22) of the grounding adapter assembly (20), thereby realizing the configuration of grounding of the battery pack. During assembly, a first fastener (40) is used and penetrates an adapter body (21) to correspondingly connect to a support portion (13), such that the grounding adapter assembly (20) is connected to an inner wall of the housing body (10) and the first docking member (22) passes through a through hole (11), and assembly can be completed by connecting the first docking member (22) to the grounding network. The grounding adapter assembly (20) has a simple structure and is easily produced and assembled, thereby reducing costs; and the volume size of the grounding adapter assembly (20) can be made smaller, thereby making an occupied space smaller.

Description

Energy storage device and its casing

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202311829638.1, filed with the State Intellectual Property Office of China on December 28, 2023, and entitled “Energy Storage Device and Its Housing,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to an energy storage device and a housing thereof. Background Art

[0004] The energy storage device in the related art includes a shell made of insulating material and a battery pack disposed inside the shell. To improve safety and prevent leakage of the shell, some people have proposed providing a grounding member on the shell. The grounding member is electrically connected to the first docking member of the battery pack and the grounding network located outside the shell through wires to form a loop. However, the grounding member in the related art is usually a component processed by a lathe and fixed to the shell by injection molding. The structural design of the grounding member is relatively complex, which is not only not conducive to automated production, but also has high costs and occupies a large space.

[0005] Summary of the Invention

[0006] According to various embodiments of the present application, the present application provides an energy storage device and a housing thereof.

[0007] A housing of an energy storage device, comprising:

[0008] A shell body, wherein the shell body is provided with a through hole, and at least one supporting portion is provided on the inner wall of the shell body;

[0009] a grounding adapter assembly connected to the inner wall of the shell body, comprising an adapter body connected to the inner wall of the shell body, and a first docking member and a second docking member connected to the adapter body, wherein the first docking member is disposed in the through hole;

[0010] at least one first fastener, the first fastener passing through the adapter body and correspondingly connected to the support portion; and

[0011] A grounding connector is provided with a joint, the joint is connected to the second docking member, and the grounding connector is used to be electrically connected to the battery pack.

[0012] In one embodiment, a first protrusion is provided on the inner wall of the shell body; a first avoidance hole connected to the through hole is provided on the first protrusion, the adapter body is tightly abutted against the first protrusion, and the first docking piece is also passed through the first avoidance hole.

[0013] In one embodiment, there are at least two supporting parts, at least two first fasteners, and each first fastener is arranged corresponding to each supporting part; and / or, the adapter body includes a flat plate; the first fastener and the first docking member are both installed on the flat plate.

[0014] In one embodiment, the adapter body includes a first adapter plate and a second adapter plate that are arranged at an angle and connected to each other; the first adapter plate and the support portion abut against each other, and the first fastener passes through the first adapter plate and is correspondingly connected to the support portion; the second adapter plate and the support portion abut against each other and are provided with a spacing space with the inner wall of the shell body, and the first docking piece is provided on the second adapter plate.

[0015] In one embodiment, the supporting portion is configured as a supporting column or a supporting block; two supporting portions are provided, and the two supporting portions are respectively located on opposite sides of the through hole.

[0016] In one embodiment, a clamping portion is provided on the support portion and / or the inner wall of the shell body, and the side portion of the second adapter plate away from the first adapter plate is clamped and fixed to the clamping portion.

[0017] In one embodiment, the shell body includes a first shell wall and a second shell wall connected to the first shell wall and arranged at an angle; the through hole is formed on the first shell wall, and the support portion is connected to the second shell wall.

[0018] In one embodiment, the first shell wall is configured as a side wall of the shell body, the second shell wall is configured as a bottom wall of the shell body, and the second docking member is disposed on the first adapter plate.

[0019] In one embodiment, the connector is provided with a first mounting hole, and the second docking member is provided with a second mounting hole corresponding to the position of the first mounting hole; the housing of the energy storage device further includes a second fastener, and the connector is fixedly mounted on the second docking member by the second fastener through the first mounting hole and the second mounting hole in sequence;

[0020] A second protrusion is provided on the inner wall of the shell body; a second avoidance hole corresponding to the second docking piece is provided on the second protrusion, the adapter body is in close contact with the second protrusion, and the second docking piece is also passed through the second avoidance hole.

[0021] An energy storage device includes a shell of the energy storage device and a battery pack, wherein the battery pack is arranged inside the shell, and a grounding portion of the battery pack is electrically connected to the grounding connector.

[0022] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a housing of an energy storage device according to an embodiment of the present application.

[0024] FIG2 is a schematic diagram of the exploded structure of the structure shown in FIG1 .

[0025] FIG3 is a cross-sectional structural diagram of the structure shown in FIG1 .

[0026] FIG4 is an enlarged structural diagram of point A in FIG3 .

[0027] FIG5 is a structural diagram of the structure shown in FIG1 from another perspective.

[0028] FIG6 is a structural diagram of a ground adapter assembly according to another embodiment of the present application.

[0029] FIG7 is a schematic structural diagram of a housing of an energy storage device according to another embodiment of the present application.

[0030] FIG8 is a schematic diagram of the exploded structure of the structure shown in FIG7 .

[0031] FIG9 is a cross-sectional structural diagram of the structure shown in FIG6 .

[0032] FIG10 is an enlarged structural diagram of point B in FIG9 .

[0033] FIG11 is a structural diagram of the structure shown in FIG6 from another perspective.

[0034] FIG12 is a structural diagram of a ground adapter assembly according to another embodiment of the present application.

[0035] 10. Shell body; 11. Through hole; 12. First protrusion; 121. First avoidance hole; 13. Support portion; 14. Clamping portion; 15. First shell wall; 16. Second shell wall; 17. Second protrusion; 171. Second avoidance hole; 20. Grounding adapter assembly; 21. Adapter body; 211. Through hole; 212. Flat plate; 213. First adapter plate; 214. Second adapter plate; 22. First docking piece; 23. Second docking piece; 231. Second mounting hole; 30. Grounding connector; 31. Connector; 311. First mounting hole; 40. First fastener; 50. Second fastener. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0037] Referring to Figures 1 to 6 or Figures 7 to 12, Figures 1 to 6 show schematic diagrams of the relevant structures of the shell of the energy storage device of one embodiment of the present application. Figures 7 to 12 show schematic diagrams of the relevant structures of the shell of the energy storage device of another embodiment of the present application. An embodiment of the present application provides a shell of an energy storage device, and the shell of the energy storage device includes: a shell body 10, a grounding adapter assembly 20 and a grounding connector 30. The shell body 10 is provided with a through hole 11. Among them, the shell body 10 is specifically made of non-metallic material. In addition, the shape of the shell body 10 can be flexibly adjusted and set into various regular and irregular shapes according to actual needs, such as a rectangular parallelepiped, a cylindrical shape, etc., which are not limited here. In addition, the through hole 11, that is, the specific position where the first docking member 22 is installed on the shell body 10, can be flexibly adjusted and set at any position on the bottom wall, side wall and top wall of the shell body 10 according to actual needs.

[0038] Furthermore, the ground adapter assembly 20 is connected to the inner wall of the shell body 10 and includes an adapter body 21 connected to the inner wall of the shell body 10 and a first docking member 22 and a second docking member 23 connected to the adapter body 21. The first docking member 22 is disposed in the through hole 11.

[0039] In addition, the ground connector 30 is provided with a connector 31. The connector 31 is connected to the second docking member 23. The ground connector 30 is used to electrically connect to the battery pack (not shown). The ground connector 30 includes, but is not limited to, one or more combinations of a ground wire, a conductive sheet, and a conductive strip, and can be flexibly adjusted and configured according to actual needs.

[0040] In addition, it should be noted that the "connector 31" can be a "part of the grounding connector 30", that is, the "connector 31" and the "other parts of the grounding connector 30" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the grounding connector 30", that is, the "connector 31" can be manufactured independently and then combined with the "other parts of the grounding connector 30" into a whole.

[0041] In the housing of the energy storage device described above, the grounding portion of the battery pack is electrically connected to the second docking member 23 via the grounding connector 30, and the first docking member 22 of the ground adapter assembly 20 is connected to the grounding network outside the shell body 10, thereby realizing the grounding setting of the battery pack. During assembly, a first fastener 40 is used to penetrate the adapter body 21 and connect to the corresponding support portion 13, so that the ground adapter assembly 20 is connected to the inner wall of the shell body 10, and the first docking member 22 is inserted into the through hole 11. The first docking member 22 is connected to the grounding network for grounding. Compared with the method of using lathe-machined parts and injection molding them on the shell in the related art, the structure of the ground adapter assembly 20 is simpler, easier to produce and assemble, and reduces costs. In addition, the size of the ground adapter assembly 20 can be made smaller, so that it occupies less space.

[0042] Referring to Figures 1 to 6 , in one embodiment, a first protrusion 12 is provided on the inner wall of the shell body 10. The first protrusion 12 is provided with a first avoidance hole 121 that communicates with the through hole 11. The adapter body 21 is tightly abutted against the first protrusion 12, and the first docking member 22 is also inserted into the first avoidance hole 121. Thus, when the wall thickness of the shell body 10 is less than the length of the first docking member 22, the first protrusion 12 on the inner wall of the shell body 10 allows the first docking member 22 to be inserted into the first avoidance hole 121. In other words, the first avoidance hole 121 and the through hole 11 form a space to accommodate the first docking member 22, preventing the first docking member 22 from protruding outside the through hole 11. Furthermore, the first protrusion 12 thickens the shell body 10 in a certain area, thereby increasing the structural strength of the shell body 10 and thereby enhancing the installation stability of the adapter body 21. This eliminates the need to increase the wall thickness of every area of ​​the shell body 10, thereby reducing costs.

[0043] It should be noted that the "first protrusion 12" can be "a part of the shell body 10", that is, the "first protrusion 12" and the "other parts of the shell body 10" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the shell body 10", that is, the "first protrusion 12" can be manufactured independently and then combined with the "other parts of the shell body 10" into a whole.

[0044] Please refer to Figures 1 to 4. In one embodiment, at least one support portion 13 is further provided on the inner wall of the shell body 10. The outer shell of the energy storage device also includes at least one first fastener 40. The first fastener 40 passes through the adapter body 21 and is correspondingly connected to the support portion 13. In this way, on the one hand, the first fastener 40 can realize the connection and fixation between the adapter body 21 and the support portion 13, which can further improve the installation stability of the adapter body 21 on the shell body 10; on the other hand, the support portion 13 is equivalent to thickening the local thickness of the shell body 10, which can improve the structural strength of the shell body 10, thereby increasing the installation stability of the adapter body 21, and there is no need to increase the wall thickness of each area of ​​the shell body 10, thereby reducing costs.

[0045] It should be noted that the "support portion 13" can be a "part of the shell body 10", that is, the "support portion 13" and the "other parts of the shell body 10" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the shell body 10", that is, the "support portion 13" can be manufactured independently and then combined with the "other parts of the shell body 10" into a whole.

[0046] Referring to Figures 1 to 4 , in one embodiment, at least two support portions 13 are provided, and at least two first fasteners 40 are provided, with each first fastener 40 corresponding to a respective support portion 13. Thus, each first fastener 40 penetrates the adapter body 21 and connects to a corresponding support portion 13, enabling the adapter body 21 to be stably mounted on the housing 10.

[0047] Specifically, a through hole 211 corresponding to the first fastener 40 is defined on the adapter body 21 , and the first fastener 40 is passed through the through hole 211 .

[0048] In some embodiments, the first fastener 40 includes but is not limited to screws, bolts, pins, rivets and other fasteners. The support portion 13 is provided with a mounting hole adapted for the first fastener 40 , so that the first fastener 40 can be connected and fixed to the support portion 13 .

[0049] Please refer to Figures 1 to 4. In this embodiment, the support portion 13 and the first fastener 40 can be set to two, for example, without setting a larger number. This simplifies the structure, facilitates production and assembly, reduces costs, and reduces the volume size of the ground adapter assembly 20, so that it occupies less space, while ensuring that the adapter body 21 is stably installed on the shell body 10.

[0050] Referring to Figures 1 to 4 , in some embodiments, the two support portions 13 are symmetrically arranged about the central axis of the extension direction of the adapter body 21. The extension direction is the direction from one end of the adapter body 21 to the other end, and the central axis of the extension direction is a straight line passing through the center of the adapter body 21 and extending along the extension direction of the adapter body 21. This allows the adapter body 21 to be stably mounted on the housing 10.

[0051] Please refer to Figures 1 to 6. In one embodiment, the adapter body 21 includes but is not limited to a flat plate 212 or other irregularly shaped plates. In one embodiment, the adapter body 21 includes the flat plate 212 as an example for expansion, but this is not limiting. The first fastener 40 and the first docking member 22 are both installed on the flat plate 212. Among them, the first fastener 40 is specifically installed on the flat plate 212 in a direction perpendicular to the surface of the flat plate 212, so that the flat plate 212 and the support portion 13 are tightly abutted; the first docking member 22 is also installed on the flat plate 212 in a direction perpendicular to the surface of the flat plate 212, and is inserted into the through hole 11. In this way, the support portion 13 and the first protrusion 12 are arranged adjacent to each other, and the overall structure is compact and occupies little space.

[0052] Furthermore, the second fastener 50 is similarly mounted on the planar plate 212, for example, perpendicularly to the surface of the planar plate 212, thereby securing the connector 31 to the planar plate 212 and ensuring tight contact between the planar plate 212 and the second protrusion 17. Furthermore, the extension direction of the first relief hole 121 of the first protrusion 12, the extension direction of the second relief hole 171 of the second protrusion 17, and the extension direction of the mounting hole of the support portion 13 are all perpendicular to the surface of the planar plate 212. Thus, the support portion 13, the first protrusion 12, and the second protrusion 17 are all arranged adjacent to each other, resulting in a compact overall structure that occupies minimal space.

[0053] In some embodiments, the flat plate 212 and the through hole 11 are included but not limited to being located at any position of the bottom wall, side wall and top wall of the shell body 10 , and can be flexibly adjusted and set according to actual needs, which is not limited here.

[0054] Please refer to Figures 7 to 12. The shape of the adapter body 21 shown in Figures 7 to 12 is different from the shape of the adapter body 21 shown in Figures 1 to 6. In one embodiment, the adapter body 21 includes a first adapter plate 213 and a second adapter plate 214 that are arranged at an angle and connected to each other. At least one support portion 13 is also provided on the inner wall of the shell body 10. The outer shell of the energy storage device also includes at least one first fastener 40. The first adapter plate 213 and the support portion 13 abut against each other, and the first fastener 40 passes through the first adapter plate 213 and is correspondingly connected to the support portion 13. The second adapter plate 214 abuts against the support portion 13 and is provided with a spacing space with the inner wall of the shell body 10. The first docking member 22 is provided on the second adapter plate 214. In this way, the first fastener 40 passes through the first adapter plate 213 and is connected and fixed to the support portion 13, while the second adapter plate 214 and the support portion 13 abut against each other, so that the adapter body 21 can be stably installed on the shell body 10; in addition, the support portion 13 can form a spacing space between the second adapter plate 214 and the inner wall of the shell body 10, and the spacing space and the through hole 11 constitute a space for accommodating the first docking member 22, which can prevent the first docking member 22 from protruding to the outside of the through hole 11, so that there is no need to increase the thickness of the shell body 10.

[0055] Referring to Figures 7-10 , in one embodiment, the support portion 13 is configured as a support column or support block. Two support portions 13 are provided, one located on opposite sides of the through-hole 11. This not only ensures a stable connection between the adapter body 21 and the housing body 10, but also, due to the small number of support portions 13 and their configuration as support columns or support blocks, simplifies and compacts the structure, reducing the product's size. Furthermore, the two support portions 13 are located on opposite sides of the through-hole 11, avoiding interference with the first docking member 22.

[0056] Referring to Figures 7 and 8 , in one embodiment, a clamping portion 14 is provided on the inner wall of the support portion 13 and / or the housing body 10, and a side portion of the second adapter plate 214, away from the first adapter plate 213, is clamped and fixed to the clamping portion 14. Thus, since the second adapter plate 214 is clamped and fixed to the clamping portion 14, the adapter body 21 can be further stably mounted on the housing body 10.

[0057] Referring to Figures 7 to 12 , in one embodiment, the housing body 10 includes a first housing wall 15 and a second housing wall 16 connected to the first housing wall 15 and arranged at an angle thereto. A through hole 11 is formed in the first housing wall 15, and the support portion 13 is connected to the second housing wall 16. Thus, the first housing wall 15 and the second housing wall 16 are connected to form a corner of the housing body 10. This means that the ground adapter assembly 20 is positioned at a corner of the housing body 10, thereby minimizing the internal space occupied by the housing body 10 and maintaining a compact structure.

[0058] Among them, the first shell wall 15 and the second shell wall 16 are independently arranged on two adjacent walls of the shell body 10 and arranged at an angle, including but not limited to the bottom wall, side wall or top wall of the shell body 10. They can be flexibly adjusted and set according to actual needs and are not limited here.

[0059] Referring to Figures 7 to 12 , in one embodiment, the first housing wall 15 is configured as a side wall of the housing body 10, the second housing wall 16 is configured as a bottom wall of the housing body 10, and the second docking member 23 is disposed on the first adapter plate 213. Thus, during assembly, the first adapter plate 213 overlaps the top surface of the support portion 13, making it easier to secure the connector 31 to the first adapter plate 213 from top to bottom using the second fastener 50.

[0060] Referring again to Figures 1 to 4 , in one embodiment, the first protrusion 12 is integrally formed with the shell body 10. The support portion 13 is integrally formed with the shell body 10. Specifically, the first protrusion 12, the support portion 13, and the shell body 10 are integrally formed, including but not limited to, by injection molding or compression molding. This allows for mass production of the shell body 10, resulting in higher production efficiency.

[0061] Referring again to Figures 1 to 4 , in one embodiment, the connector 31 is provided with a first mounting hole 311, and the second docking member 23 is provided with a second mounting hole 231 corresponding to the position of the first mounting hole 311. The housing of the energy storage device further includes a second fastener 50, through which the connector 31 is fixedly mounted on the second docking member 23, passing through the first mounting hole 311 and the second mounting hole 231, respectively.

[0062] In some embodiments, the second fastener 50 includes but is not limited to fasteners such as screws, bolts, pins, and rivets. The second mounting hole 231 set on the second docking member 23 is correspondingly set to the second fastener 50, so that the second fastener 50 can be connected and fixed to the second docking member 23.

[0063] Referring again to Figures 1 to 4, in one embodiment, a second protrusion 17 is provided on the inner wall of the shell body 10. The second protrusion 17 is provided with a second avoidance hole 171 corresponding to the second docking member 23. The adapter body 21 is tightly abutted against the second protrusion 17, and the second docking member 23 is also inserted into the second avoidance hole 171. Thus, because the second protrusion 17 is provided on the inner wall of the shell body 10, the second fastener 50 can be inserted into the second avoidance hole 171, thereby providing an avoidance function. Furthermore, the second protrusion 17 is equivalent to thickening the local thickness of the shell body 10, which can improve the structural strength of the shell body 10 and thereby increase the installation stability of the adapter body 21. There is no need to increase the wall thickness of each area of ​​the shell body 10, thereby reducing costs.

[0064] It should be noted that the "second protrusion 17" can be "a part of the shell body 10", that is, the "second protrusion 17" and the "other parts of the shell body 10" are integrally molded; it can also be an independent component that can be separated from the "other parts of the shell body 10", that is, the "second protrusion 17" can be manufactured independently and then combined with the "other parts of the shell body 10" into a whole.

[0065] In one embodiment, the first docking member 22 is fixed to the adapter body 21 by various means including but not limited to riveting, welding, bonding, clamping, or threading. In addition, the second docking member 23 is fixed to the adapter body 21 by various means including but not limited to riveting, welding, bonding, clamping, or threading.

[0066] In this embodiment, the first docking member 22 and the second docking member 23 are each fixed to the adapter body 21 by riveting, for example, which can achieve rapid installation and fixation on the adapter body 21, and the stability on the adapter body 21 is higher than other installation methods.

[0067] In some embodiments, the first docking member 22 includes but is not limited to a nut, a terminal post, a clamp, a clamp, etc., which can be easily connected to the grounding wire and electrically connected to the grounding network through the grounding wire.

[0068] Please refer to Figures 1 to 6. In one embodiment, an energy storage device includes a housing of the energy storage device of any of the above embodiments, and also includes a battery pack. The battery pack is disposed inside the housing, and a grounding portion of the battery pack is electrically connected to a grounding connector 30.

[0069] In the aforementioned energy storage device, the grounding portion of the battery pack is electrically connected to the second docking member 23 via the grounding connector 30. The first docking member 22 of the ground adapter assembly 20 is connected to the grounding network outside the shell body 10, thereby achieving the grounding of the battery pack. During assembly, the ground adapter assembly 20 is connected to the inner wall of the shell body 10, and the first docking member 22 is inserted into the through hole 11. The first docking member 22 is then connected to the grounding network. Compared to the related art method of using lathe-machined parts and injection molding them onto the shell, the ground adapter assembly 20 has a simpler structure, facilitating production and assembly, reducing costs, and can be made smaller in size, thereby occupying less space.

[0070] In the description of this application, it should be understood that if the 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. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0071] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0072] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0073] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0074] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A housing of an energy storage device, characterized in that, The housing of the energy storage device includes: A housing body, the housing body is provided with a through hole, and at least one support portion is provided on the inner wall of the housing body, and the support portion is integrally formed with the housing body; A ground transfer assembly, the ground transfer assembly is fixedly connected to the inner wall of the housing body, and the ground transfer assembly includes a transfer main body connected to the inner wall of the housing body and a first docking member and a second docking member connected to the transfer main body; the first docking member passes through the through hole and does not extend out of the housing body through the through hole; At least one first fastener, the first fastener penetrates through the transfer main body and is correspondingly connected to the support portion, the transfer main body includes a first transfer plate and a second transfer plate which are arranged at an angle and connected to each other, the first transfer plate abuts against the support portion, the first fastener penetrates through the first transfer plate and is correspondingly connected to the support portion, the second transfer plate abuts against the support portion and has a spaced space from the inner wall of the housing body, and the first docking member is arranged on the second transfer plate; and A ground connection member and a second fastener, the ground connection member is provided with a joint, the joint is connected to the second docking member, the ground connection member is used for electrically connecting with the grounding portion of the battery pack, the first docking member is used for accessing the grounding network outside the housing body to realize the grounding setting of the battery pack; the joint is provided with a first mounting hole, and the second docking member is provided with a second mounting hole corresponding to the position of the first mounting hole; the joint is fixedly mounted on the second docking member by the second fastener sequentially passing through the first mounting hole and the second mounting hole.

2. The outer casing of the energy storage device according to claim 1, characterized in that, The housing body is provided in a rectangular parallelepiped shape or a cylindrical shape.

3. The outer shell of the energy storage device according to claim 1, characterized in that, The support portion is provided with at least two, the first fastener is provided with at least two, and each first fastener is correspondingly arranged with each support portion.

4. The outer shell of the energy storage device according to claim 1, characterized in that, The transfer main body is provided with a through hole corresponding to the first fastener, and the first fastener passes through the through hole.

5. The outer shell of the energy storage device according to claim 1, characterized in that, The support portion is provided as a support column or a support block; the support portion is provided with two, and the two support portions are respectively located on opposite sides of the through hole.

6. The housing of the energy storage device according to claim 1, characterized in that, A clamping portion is provided on the support portion and / or the inner wall of the housing body, and the side portion of the second transfer plate away from the first transfer plate is clamped and fixed on the clamping portion.

7. The outer shell of the energy storage device according to claim 1, characterized in that, The housing body includes a first housing wall and a second housing wall connected to the first housing wall and arranged at an angle; the through hole is formed on the first housing wall, and the support portion is connected to the second housing wall.

8. The outer casing of the energy storage device according to claim 7, characterized in that, The first housing wall is provided as the side wall of the housing body, the second housing wall is provided as the bottom wall of the housing body, and the second docking member is arranged on the first transfer plate.

9. The housing of the energy storage device according to any one of claims 1 to 8, characterized in that, The first docking member and the second docking member are each fixedly pressed on the transfer main body.

10. An energy storage device, the energy storage device includes the housing of the energy storage device according to any one of claims 1 to 9, and further includes a battery pack, the battery pack is arranged inside the housing, and the grounding portion of the battery pack is electrically connected to the ground connection member.

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