Shell and energy storage device

Abstract

The embodiment of the utility model discloses a shell and an energy storage device, and belongs to the technical field of energy storage devices. The shell comprises a plurality of plate bodies, the plurality of plate bodies form an accommodating cavity, the accommodating cavity is used for accommodating the battery module, and the plurality of plate bodies are detachably connected. According to the invention, the plurality of plate bodies of the housing can be replaced independently, so that the problem that the housing is not easy to disassemble during assembly in the prior art can be solved; in addition, the assembly process is simplified, the replacement and maintenance cost is reduced, replacement and maintenance are easy in the later period, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage devices, in particular to a shell and an energy storage device. BACKGROUND

[0002] The shell of an energy storage device is generally made of cold-rolled steel plate or alloy, which is used to store battery and other energy storage components and can provide protection for the stored components.

[0003] In the related art, the shell generally includes a frame and an outer shell connected to the frame. However, the outer shell of the energy storage device in the related art is not easy to disassemble, and the difficulty of replacing and maintaining the outer shell is high, and the cost of replacement and maintenance is high. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the present application provides a shell and an energy storage device, and a plurality of plate bodies can be replaced individually, which helps to solve the problem that the shell in the related art is not easy to disassemble. In addition, the present application helps to simplify the assembly process, reduce maintenance cost, and easily replace and maintain in the later period.

[0005] In order to achieve the above purpose, the present application provides the following technical solutions:

[0006] The first aspect of the embodiment of the present application provides a shell for an energy storage device, a plurality of plate bodies constitute a receiving cavity, the receiving cavity is used to accommodate a battery module, and a plurality of plate bodies are detachably connected.

[0007] In an implementable embodiment, a frame is further included, the frame includes a main frame and a liner connected to the main frame, a plurality of plate bodies are connected to the main frame, and the liner is used to install the battery module.

[0008] In an implementable embodiment, among two adjacent plate bodies, one plate body and the frame form an embedding groove, and part of the structure of the other plate body forms an embedding part, and the embedding part is embedded in the embedding groove.

[0009] In an implementable embodiment, at least two plate bodies are provided with a connecting part, the connecting parts of two adjacent plate bodies are opposite and at least partially overlapped along a first direction, and are detachably connected along a second direction, and the first direction and the second direction intersect.

[0010] In an implementable embodiment, at least two plate bodies are provided with a bending part, in two plate bodies connected to each other, at least part of the bending part bends in a direction of approaching each other; the bending part forms the connecting part, and the bending parts of two adjacent plate bodies are opposite and at least partially overlapped along a first direction, and are detachably connected along a second direction.

[0011] In an implementation, the bending portion comprises a first bending edge, and the first bending edges of two adjacent plate bodies are opposite and at least partially overlapped in a first direction.

[0012] In an implementation, the bending portion further comprises a second bending edge, and the second bending edges of two adjacent plate bodies are detachably connected in a second direction.

[0013] In an implementation, a sealing member is arranged between the connecting portions of two adjacent plate bodies in the first direction and / or the second direction.

[0014] In an implementation, a protective member is arranged in a gap between the plate body and the frame.

[0015] In an implementation, the plate body comprises a top plate, a bottom plate, and a plurality of side plates connected in sequence; the top plate, the bottom plate, and the plurality of side plates jointly enclose a cavity for accommodating the frame; and the connecting portions are arranged on at least one of the top plate and the side plate, between two adjacent side plates, and between the bottom plate and the side plate.

[0016] In an implementation, the side plates comprise a left side plate, a rear side plate, a right side plate, and a front side plate; and the connecting portions are arranged on at least one of the left side plate and the rear side plate, the rear side plate and the right side plate, the right side plate and the front side plate, and the front side plate and the left side plate.

[0017] In an implementation, the number of side plates is at least two; two adjacent side plates are spliced in the extension direction of the shell width, and at least partially overlapped.

[0018] In an implementation, a waterproof member is arranged in a gap between two adjacent side plates, and the waterproof member extends in the length direction of the side wall.

[0019] In an implementation, a plate body support member is arranged on a side of the plate body close to the frame.

[0020] In an implementation, the plate body support member comprises a side plate support beam arranged on a side of the side plate close to the frame; and / or, the plate body support member comprises a top plate support beam arranged on a side of the top plate close to the frame; and / or, the plate body support member comprises a bottom plate support beam arranged on a side of the bottom plate close to the frame.

[0021] In an implementable embodiment, the size of the gap is not less than the thickness of the protective member, and the size of the gap ranges from 60mm to 80mm.

[0022] A second aspect of the embodiments of the present application provides an energy storage device, comprising a battery module and a shell, wherein the battery module is arranged in the shell.

[0023] In an implementable embodiment, the battery module is a battery pack, the battery pack is arranged in a liner of the shell, the liner contains a cooling medium, and the battery pack is in direct contact with the cooling medium.

[0024] In an implementable embodiment, the energy storage device comprises an energy storage container, an energy storage cabinet or an energy storage station.

[0025] The embodiments of the present application provide a shell and an energy storage device, the shell comprises a plurality of plate bodies, and the plurality of plate bodies are detachably connected. In this way, the plurality of plate bodies of the shell can be replaced individually, which helps to solve the problem that the assembly of the shell in the related art is not easy to disassemble. Meanwhile, the present application has good protection performance, can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device, greatly improves the structural sealing performance, firmness and protection performance of the energy storage device, and further ensures the protection performance of the battery module and the safety of the battery module. In addition, the present application helps to simplify the assembly process and reduce the maintenance cost, and is easy to replace and maintain in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure diagram of the energy storage device provided by the embodiments of the present application Figure 1

[0027] Figure 2 Structure diagram of the energy storage device provided by the embodiments of the present application Figure 2

[0028] Figure 3 Top view of the energy storage device provided by the embodiments of the present application

[0029] Figure 4 Partially enlarged schematic diagram of I part in FIG. 1 Figure 3

[0030] Partially enlarged schematic diagram of II part in FIG. 1 Figure 5

[0031] Internal structure diagram of the energy storage device provided by the embodiments of the present application Figure 6 Figure 5 Partially enlarged schematic diagram of II part in FIG. 1

[0032] Figure 7 Partially enlarged schematic diagram of II part in FIG. 1​​​Figure 5 Partial enlarged view of section III;

[0033] Figure 8 Assembly structure of the shell provided for the embodiment of the present application Figure 1 ;

[0034] Figure 9 Assembly structure of the shell provided for the embodiment of the present application Figure 2 ;

[0035] Figure 10 Assembly structure of the shell provided for the embodiment of the present application Figure 3 ;

[0036] Figure 11 Top view of the shell provided for the embodiment of the present application

[0037] Figure 12 Rear view of the shell provided for the embodiment of the present application

[0038] Figure 13 Left view of the shell provided for the embodiment of the present application

[0039] Figure 14 Right view of the shell provided for the embodiment of the present application

[0040] Figure 15 Front view of the shell provided for the embodiment of the present application

[0041] Figure 16 Front view of the side plate of the shell provided for the embodiment of the present application

[0042] Figure 17 Left view of the side plate of the shell provided for the embodiment of the present application

[0043] Figure 18 Right view of the side plate of the shell provided for the embodiment of the present application

[0044] Figure 19 Top view of the side plate of the shell provided for the embodiment of the present application

[0045] Figure 20 Sectional view of the side plate of the shell provided for the embodiment of the present application

[0046] Figure 21 Partial enlarged view of section IV. Figure 20

[0047] Explanation of reference numerals:

[0048] 100 - shell

[0049] 110 - plate body; 111 - top plate; 112 - bottom plate​

[0050] 113 - side plate; 1131 - left side plate; 1132 - rear side plate;

[0051] 1133 - right side plate; 1134 - front side plate; 114 - bending part;

[0052] 1141 - first bending edge; 1142 - second bending edge;

[0053] 120 - frame; 121 - main frame;

[0054] 122 - inner container; 130 - embedded groove; 140 - sealing element;

[0055] 150 - protection element; 160 - waterproof element; 170 - plate support element;

[0056] 200 - energy storage device; 210 - battery module. DETAILED DESCRIPTION

[0057] The housing battery and other energy storage components of the energy storage device, the housing generally includes a frame and a shell, the shell in processing, limited by sheet metal processing technology, it is difficult to process large size plate, resulting in the design size of the shell of the energy storage device is small, and in order to ensure a certain protection effect, in the related art, the shell is fixedly connected between each door plate. For example, in the related art, the two adjacent door plates of the shell are connected by welding, so that the shell itself is a welded integral structure, and the integral shell is welded on the surface of the frame of the energy storage device by welding.

[0058] However, the above connection method is not easy to disassemble, and the shell is not easy to replace and maintain. If part of the door plate of the shell is damaged, the entire shell needs to be disassembled, and the maintenance cost is high. In addition, the welding method is prone to problems such as virtual welding and poor welding, resulting in poor protection and sealing of the energy storage device to the battery module. Moreover, the shell is welded on the surface of the frame of the energy storage device by welding, and there is no gap between the shell of the energy storage device and the surface of the frame. The protective material cannot be filled well in front of the shell of the energy storage device and the surface of the frame. If the protective material needs to be added, the internal space of the energy storage device needs to be occupied, which greatly reduces the space utilization of the energy storage device.

[0059] In view of the above technical problems, the shell and the energy storage device provided in the embodiments of the present application, the assembly method of the present application, the plurality of plate bodies of the shell can be replaced individually, which helps to solve the problem that the assembly of the shell is not easy to disassemble in the related art; meanwhile, the present application has good protection performance, can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device, greatly improves the structural sealing performance, firmness and protection performance of the energy storage device, and further ensures the protection performance of the battery module and the safety of the battery module. In addition, the present application helps to simplify the assembly process, reduce the maintenance cost, and is easy to replace and maintain in the later period.

[0060] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar components or components having the same or similar functions throughout. The described embodiments are part of the embodiments of the present application, not all. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0061] Referring to Figure 1 and Figure 2 The present application provides an energy storage device 200, wherein the shell of the energy storage device 200 is generally made of cold-rolled steel plate or alloy and is used to store battery modules and other energy storage components.

[0062] For example, the energy storage device can be an energy storage container provided at a station side; or the energy storage device can be an energy storage cabinet used in industry and commerce; or the energy storage device can be an energy storage cabinet used at home; or the energy storage device can also be an energy storage station; or the energy storage device can also be other implementation forms. The present embodiment does not limit this.

[0063] Referring to Figure 1 and Figure 2 The energy storage device 200 can include a battery module 210 and a shell 100, the battery module 210 is located in the shell 100, and the shell 100 can protect the battery module 210. In this way, on the one hand, the energy storage device 200 of the present application can effectively shield the electromagnetic interference of the battery module 210 from the outside; on the other hand, the energy storage device 200 of the present application can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device 200; on the other hand, the energy storage device 200 of the present application helps to arrange the battery module 210 in order and neatly, and facilitates the maintenance of the battery module 210.

[0064] In the embodiments of the present application, the type of the battery module 210 is not limited. For example, the battery module 210 can be a battery pack, or the battery module 210 can be a battery cell module. In the embodiments of the present application, the battery module 210 is mainly taken as a battery pack for illustration.

[0065] In the embodiments of the present application, the number of the battery module 210 is not limited. For example, one or more battery modules 210 can be stored in the energy storage device 200, which is not limited in the embodiments of the present application.

[0066] Referring to Figures 2 to 4 As shown in the figure, the shell 100 can include a plurality of plate bodies 110, the plurality of plate bodies 110 constitute a containing cavity for containing the battery module 210, and the plurality of plate bodies 110 are detachably connected.

[0067] In the embodiments of the present application, the number of the plate body 110 is not limited. For example, the number of the plate body 110 can include two, three, five or more. This is not limited in the embodiments of the present application.

[0068] In the embodiments of the present application, the detachable connection mode between the plurality of plate bodies 110 is not limited. For example, the plurality of plate bodies 110 can be connected through thread connection, buckle connection, hinge connection, rivet connection or flange connection, etc. This is not limited in the embodiments of the present application.

[0069] In this way, the plurality of plate bodies 110 can be replaced individually, which helps to solve the problem that the assembly of the shell is not easy to disassemble in the related art. At the same time, the present application has good protection performance, which can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device 200, greatly improves the structural sealing, firmness and protection of the energy storage device 200, and further ensures the protection performance of the battery module 210, guarantees the safety of the battery module 210, in addition, the present application helps to simplify the assembly process, reduces the maintenance cost, and is easy to replace and maintain in the later period.

[0070] In an implementable embodiment, referring to Figure 1 and Figure 4 As shown in the figure, the shell 100 can further include a frame 120, one of the two adjacent plate bodies 110 and the frame 120 can form an embedding groove 130, and the other plate body 110 can form an embedding part, and the embedding part is embedded in the embedding groove 130.

[0071] It can be understood that the embedding part is part of the structure of the plate body 110.

[0072] In the embodiment, the frame 120 is a basic structure of the shell 100, generally made of steel material, having high strength and high stability, used to support other components inside the energy storage device 200 and ensure the stability and stress balance of the whole energy storage device 200, which is beneficial to prevent the energy storage device 200 from deforming and damaging after long time use.

[0073] It should be noted that the forming mode of the embedded groove 130 is not limited in the embodiment. For example, the surface of the frame 120 can be inwardly recessed, and the recessed area forms the embedded groove 130; or a recess can be directly formed on the frame 120, and the recess forms the embedded groove 130. The embodiment does not limit this, and the specific setting can be made according to actual needs.

[0074] In addition, the shape, groove width, groove depth, etc. of the embedded groove 130 are not limited, and the specific setting can be made according to actual needs. For example, the groove wall of the embedded groove 130 can be a plane, and the adjacent two groove walls can be perpendicular to each other and can be "L" shaped, which facilitates the embedding of the plate body 110 and helps to ensure the close fit between the adjacent connecting parts, thereby ensuring the connection stability of the adjacent connecting parts.

[0075] It can be understood that the slot of the embedded groove 130 is open, so that the other plate body 110 can be embedded in the embedded groove 130.

[0076] Specifically, the frame 120 can include a main frame 121 and a liner 122 connected to the main frame 121, the plate body 110 is connected to the main frame 121, and the liner 122 is used to install the battery module 210.

[0077] In the embodiment, the liner 122 can be a sheet metal part, and the battery module 210 such as a battery pack can be fixed on the liner 122. The liner 122 can fix and carry the battery module 210, thereby helping to ensure the installation stability of the battery module 210 and ensuring the normal work of the battery module 210.

[0078] In the embodiment, the connection mode between the liner 122 and the frame 120 is not limited. For example, the liner 122 and the frame 120 can be connected by welding, bonding, clamping, screwing, etc. The embodiment does not limit this.

[0079] In one implementation that can be implemented, the connecting part is arranged between the at least two plate bodies 110, the connecting parts of the at least two adjacent plate bodies 110 are opposite and at least partially overlap along a first direction, and are detachably connected along a second direction, and the first direction and the second direction intersect.

[0080] In the embodiments of the present application, the connecting portions of the at least two adjacent plate bodies 110 are opposite and at least partially overlap along the first direction. For example, the plate bodies 110 can include two, the connecting portions of the two plate bodies 110 can be opposite and at least partially overlap along the first direction; or the plate bodies 110 can include three, the connecting portions of any two adjacent plate bodies 110 of the three plate bodies 110 can be opposite and at least partially overlap along the first direction; or the plate bodies 110 can include a plurality of plate bodies, the connecting portions of any two adjacent plate bodies 110 of the plurality of plate bodies 110 can be opposite and at least partially overlap along the first direction.

[0081] In this way, the connecting area between the adjacent connecting portions is increased, which is beneficial to improve the connecting strength and stability between the adjacent plate bodies 110, and meanwhile, the protection performance is good, which can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device 200, greatly improves the structural sealing, firmness and protection performance of the energy storage device 200, and further ensures the protection performance of the battery module 210 and the safety of the battery module 210.

[0082] It should be noted that at least partially overlapping means that the connecting portions of the adjacent plate bodies 110 can completely overlap or partially overlap along the first direction. The embodiments are not limited in this regard. In addition, overlapping means that the projections of the two adjacent connecting portions on the same horizontal line have an overlapping area.

[0083] In the embodiments of the present application, the first direction can be indicated by the arrow A direction shown in Figure 4 and Figure 6 .

[0084] Continuing to refer to Figures 3 to 6 , the connecting portions of the at least two adjacent plate bodies 110 are detachably connected along the second direction. In this way, the plurality of plate bodies 110 of the shell 100 can be replaced individually, which is helpful to solve the problem that the assembly of the shell in the related art is not easy to disassemble. In addition, the present application is helpful to simplify the assembly process and reduce the maintenance cost, and is easy to replace and maintain in the later period.

[0085] In the embodiments of the present application, the second direction can be indicated by the arrow B direction shown in Figure 4 and Figure 6 .

[0086] In the embodiments of the present application, the detachable manner of the connecting portions of the adjacent plate bodies 110 is not limited. For example, along the second direction, the connecting portions of the adjacent plate bodies 110 can be detachably connected through fasteners such as screws; or the connecting portions of the adjacent plate bodies 110 can be detachably connected through the cooperation of buckles and slots; or the connecting portions of the adjacent plate bodies 110 can be detachably connected through adhesion and the like. In the embodiments of the present application, the connecting portions of the adjacent plate bodies 110 are mainly taken as an example to be detachably connected through fasteners such as screws.

[0087] In the embodiments of the present application, the first direction and the second direction intersect. It should be noted that the intersection can include the following implementation manners: for example, the included angle between the extension direction of the first direction and the extension direction of the second direction can be a right angle, that is, the first direction and the second direction are perpendicular; or the included angle between the extension direction of the first direction and the extension direction of the second direction can be an acute angle or an obtuse angle. The present embodiment does not limit this.

[0088] In this way, it is beneficial to avoid that the two adjacent connecting portions are located on the same horizontal line, thereby avoiding the problem that the two adjacent connecting portions cannot be partially overlapped when they are located on the same horizontal line, thereby ensuring that the two adjacent connecting portions are at least partially overlapped to the greatest extent.

[0089] It should be noted that the shape of the connecting portion is not limited in the embodiments of the present application. For example, the shape of the connecting portion can be bent; or the shape of the connecting portion can be arc-shaped; or the shape of the connecting portion can also be other suitable shapes suitable for mutual embedding.

[0090] In the embodiments of the present application, the shape of the connecting portion is mainly taken as an example for illustration.

[0091] Specifically, as shown in Figure 4 and Figure 6 , the at least two plate bodies 110 are provided with bent portions 114, and at least part of the bent portions 114 of the two plate bodies 110 connected to each other are bent in the direction of approaching each other.

[0092] It should be noted that the bent portion 114 is bent in the direction of approaching each other, which means, for example, as shown in Figure 4 , when the top plate 111 and the left side plate 1131 are assembled, the bent portion 114 at the left side plate 1131 is bent upward, where upward means bent in the direction of approaching the top plate 111, for example, as shown in the arrow A1 direction in Figure 4 . The bent portion 114 at the top plate 111 is bent downward, where downward means bent in the direction of approaching the left side plate 1131, for example, as shown in the arrow A2 direction in Figure 4 .

[0093] Wherein, A1 and A2 are opposite directions.

[0094] Wherein, the bent portion 114 forms a connecting portion, and the bent portions 114 of the two adjacent plate bodies 110 are opposite and at least partially overlapped in the first direction, and are detachably connected in the second direction.

[0095] It should be noted that the number of bends of the bent portion 114 is not limited, and can be bent according to actual needs.

[0096] It should be noted that the bending angle of the bending portion 114 is not limited. For example, in the embodiment, the included angle between the two adjacent bending edges of the bending portion 114 can be 90°, that is, the bending portion 114 can be in the shape of “L”. In this way, the bending portions 114 of the two adjacent plate bodies 110 are tightly fitted, so as to ensure that the bending portions 114 of the two adjacent plate bodies 110 are opposite and at least partially overlapped in the first direction, and help to improve the connection strength and stability between the bending portions 114 of the two adjacent plate bodies 110.

[0097] In an implementable embodiment, referring to Figure 4 and Figure 6 , the bending portion 114 can include a first bending edge 1141, and the first bending edges 1141 of the two adjacent plate bodies 110 are opposite and at least partially overlapped in the first direction.

[0098] It can be understood that the first bending edges 1141 of the two adjacent plate bodies 110 can be parallel to each other, or the first bending edges 1141 of the two adjacent plate bodies 110 can intersect. In the embodiment, the first bending edges 1141 of the two adjacent plate bodies 110 are mainly taken as an example for description.

[0099] In this way, it helps to ensure that the two first bending edges 1141 are tightly fitted, and the two first bending edges 1141 are opposite, and thus the two first bending edges 1141 are at least partially overlapped. In addition, the length of the two first bending edges 1141 and the overlapping length therebetween are not limited, and can be set according to actual needs.

[0100] In an implementable embodiment, referring to Figure 4 and Figure 6 , the bending portion 114 can further include a second bending edge 1142, and the second bending edges 1142 of the two adjacent plate bodies 110 are detachably connected in the second direction.

[0101] It can be understood that the second bending edges 1142 of the two adjacent plate bodies 110 can be parallel to each other, or the second bending edges 1142 of the two adjacent plate bodies 110 can intersect. In the embodiment, the second bending edges 1142 of the two adjacent plate bodies 110 are mainly taken as an example for description. In this way, it helps to ensure that the two second bending edges 1142 are tightly fitted, and the two first bending edges 1141 are opposite, so as to realize the connection between the two second bending edges 1142 through the fastener, and improve the connection strength and stability of the two second bending edges 1142. In addition, the length of the two second bending edges 1142 is not limited, and can be set according to actual needs.

[0102] In an implementable embodiment, referring toFigure 4 As shown, the sealing member 140 can be arranged between the connecting portions of the two adjacent plate bodies 110. In this way, the sealing performance between the two adjacent plate bodies 110 can be improved, and the effective protection of the shell 100 and the energy storage device 200 can be realized, so as to prevent dust, moisture and other sundries from entering the inside of the energy storage device 200, greatly improve the structural sealing performance, firmness and protection performance of the energy storage device 200, and further ensure the protection performance of the battery module 210 and the safety of the battery module 210.

[0103] In the embodiments of the present application, the arrangement position of the sealing member 140 is not limited. For example, the sealing member 140 can be arranged between the two adjacent first bending edges 1141 in the first direction; or the sealing member 140 can be arranged between the two adjacent second bending edges 1142 in the second direction; or the sealing member 140 can be arranged between the two adjacent first bending edges 1141 in the first direction and between the two adjacent second bending edges 1142 in the second direction, respectively. The embodiments of the present application do not limit this.

[0104] In the embodiments of the present application, the type of the sealing member 140 is not limited. For example, the sealing member 140 can be waterproof glue; or the sealing member 140 can be a waterproof adhesive tape, and the embodiments of the present application do not limit this. In this way, first, the waterproof glue is arranged at the gap between the two adjacent bending portions 114, the gap is filled by pressure, and the protection performance is improved, so that the energy storage device 200 can be protected by the first layer of protection; then, the waterproof glue can be applied at the gap to reduce the leakage gap and be firmly bonded, so that the energy storage device 200 can be protected by the second layer of protection.

[0105] In an implementable embodiment, referring to Figure 5 and Figure 7 As shown, the protection member 150 can be arranged in the gap between the plate body 110 and the frame 120. Specifically, before assembling the shell 100, the protection member 150 can be adhered to the inner container 122, and the protection member 150 is wrapped after the shell 100 is installed. In this way, the safety performance of the energy storage device 200 is greatly improved.

[0106] It should be noted that the gap is provided between the plate body 110 and the frame 120. Thus, compared with the problem that the related art cannot add the protection member 150 due to no gap reserved in the shell, the protection member 150 can be arranged in the gap in the present application, so as to reasonably utilize the space utilization rate inside the energy storage device 200, effectively solve the limitation of the energy storage device 200 in the application scene, and expand the application range.

[0107] In the embodiments of the present application, the type of the protection member 150 is not limited. For example, the protection member 150 can be thermal cotton, glass wool, rock wool or the like made of thermal insulation material, which is helpful to achieve good thermal insulation performance; or the protection member 150 can be gypsum board, rock wool board or the like made of fireproof material, which is helpful to achieve good fireproof performance; or the protection member 150 can be mineral wool or the like made of heat insulation material, which is helpful to achieve good protection performance. Thus, the protection effect on the battery module 210 is maximized.

[0108] It should be noted that the size of the gap is not less than the thickness of the protection member 150, which is helpful to achieve the installation of the protection member 150, thereby ensuring the protection effect of the protection member 150 on the battery module 210.

[0109] Specifically, the size of the gap can be in the range of 60mm-80mm. For example, the size of the gap can be 60mm, 65mm, 70mm, 75mm, 78mm, 79mm, 80mm or any value between 60mm and 80mm.

[0110] When the size of the gap is less than 60mm, the complete installation of the protection member 150 cannot be well ensured, and when the size of the gap is greater than 80mm, too much internal space of the energy storage device 200 is occupied, which greatly reduces the space utilization rate of the energy storage device 200. Therefore, the size of the gap is in the range of 60mm-80mm, on the one hand, which is helpful to achieve the installation of the protection member 150, thereby ensuring the protection effect of the protection member 150 on the battery module 210; on the other hand, it also does not occupy too much internal space of the energy storage device 200, and reasonably utilizes the space utilization rate of the energy storage device 200.

[0111] In an implementable embodiment, referring to FIG. 1, Figures 8 to 15 As shown in the figure, the plate body 110 can include a top plate 111, a bottom plate 112 and a plurality of side plates 113 connected in sequence and end to end, and the top plate 111, the bottom plate 112 and the plurality of side plates 113 together enclose a cavity 116 for accommodating the frame 120.

[0112] In the embodiments of the present application, at least one of the top plate 111 and the side plate 113, the adjacent two side plates 113, and the bottom plate 112 and the side plate 113 can be provided with a connecting portion. For example, the top plate 111 and the side plate 113 can be respectively provided with a connecting portion, and the two connecting portions are opposite and at least partially overlap; or the adjacent two side plates 113 can be respectively provided with a connecting portion, and the two connecting portions are opposite and at least partially overlap. The present embodiment does not limit this, and it can be set according to the actual situation.

[0113] In this way, the connection mode between the adjacent side plates 113 can be selected according to actual needs, the assembly mode is various, and the side plates 113 can be replaced individually according to actual needs, thereby solving the problem that the shell in the prior art is not easy to disassemble.

[0114] Specifically, as shown in Figures 8 to 10 and Figures 16 to 21 , the side plates 113 can include a left side plate 1131, a rear side plate 1132, a right side plate 1133, and a front side plate 1134. At least one of the left side plate 1131 and the rear side plate 1132, the rear side plate 1132 and the right side plate 1133, the right side plate 1133 and the front side plate 1134, and the front side plate 1134 and the left side plate 1131 can be provided with a connecting portion. The present embodiment does not limit this.

[0115] In an implementable embodiment, as shown in Figures 8 to 10 and Figures 16 to 21 , the number of side plates 113 can include at least two, and adjacent two side plates 113 are spliced along the extension direction of the width of the side plate 113, and at least part of the adjacent two side plates 113 overlap.

[0116] In the present embodiment, the number of side plates 113 is not limited. For example, the number of side plates 113 can include two, three, five or more. In the present embodiment, two side plates 113 are mainly taken as an example for description.

[0117] In this way, when the size of the shell is large, if one side plate 113 is provided, it is easy to cause the problem of warping in the assembly process, causing the problem of unstable assembly of the side plate 113. Therefore, the present application provides at least two side plates 113, which can help to avoid the problem of warping of the side plate 113 in the assembly process, which affects the stability of the assembly.

[0118] In the present embodiment, at least part of the adjacent two side plates 113 overlap. Specifically, the adjacent two side plates 113 can be respectively provided with a bending portion 114, and the mutual nesting between the adjacent two side plates 113 is realized through the bending portion 114, which can help to increase the connection area between the adjacent two side plates 113, be beneficial to improve the connection strength and connection stability between the two side plates 113, and have good protection performance, further prevent dust, moisture and other sundries from entering the inside of the energy storage device 200, greatly improve the structural sealing, firmness and protection performance of the energy storage device 200, and further ensure the protection performance of the battery module 210, and ensure the safety of the battery module 210.

[0119] In an implementable embodiment, as shown in Figure 16 , a waterproof piece 160 can be filled in the gap between the adjacent two side plates 113, and the waterproof piece 160 extends along the length direction of the side plate.

[0120] In the embodiments of the present application, the type of waterproof member 160 is not limited. For example, waterproof member 160 may be waterproof adhesive. This eliminates the traditional side-drilling method, simplifies the assembly process, and provides enhanced waterproof and dustproof properties, maximizing the sealing of housing 100 and energy storage device 200.

[0121] In one possible implementation, referring to Figure 7 As shown, a plate support 170 may also be included, and the plate support 170 is connected to the side of the plate 110 close to the frame 120. In this way, the plate support 170 can effectively bear the weight of the plate 110, thereby ensuring the connection stability between the plate 110 and the frame 120, and thus enhancing the structural strength and stability of the energy storage device 200.

[0122] In one possible implementation, in some embodiments, the panel support 170 may include a side panel support beam connected to the side of the side panel 113 close to the frame 120. In this way, the side panel support beam can effectively bear the weight of the side panel 113, thereby ensuring the stability of the connection between the side panel 113 and the frame 120.

[0123] In some embodiments, the plate support member 170 may include a top plate support beam connected to a side of the top plate 111 close to the frame 120. In this way, the top plate support beam can effectively bear the weight of the top plate 111, thereby ensuring the stability of the connection between the top plate 111 and the frame 120.

[0124] In some embodiments, the plate support member 170 may include a bottom plate support beam connected to the side of the bottom plate 112 close to the frame 120. In this way, the bottom plate support beam can effectively bear the weight of the bottom plate 112, thereby ensuring the stability of the connection between the bottom plate 112 and the frame 120.

[0125] It should be noted that the structure of the plate support member 170 in this embodiment includes but is not limited to the above structure, and can be specifically configured as needed. In addition, the shape, quantity, size, etc. of the plate support member 170 are not limited.

[0126] Therefore, the shell and the energy storage device are provided in the embodiments of the present application, the shell includes a plurality of plate bodies, and the plurality of plate bodies are detachably connected. In this way, the plurality of plate bodies of the shell can be replaced individually, which helps to solve the problem that the shell is not easy to disassemble in the related art. Meanwhile, the shell has good protection performance, can effectively prevent dust, moisture and other sundries from entering the inside of the energy storage device, greatly improves the structural sealing performance, firmness and protection performance of the energy storage device, and further ensures the protection performance of the battery module and the safety of the battery module. In addition, the present application helps to simplify the assembly process and reduce the maintenance cost, and is easy to replace and maintain in the later period.

[0127] It should be noted that, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0128] In the description of the embodiments of the present application, the term "and / or" only represents an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the term "at least one" means any combination of any one or at least two of the plurality, for example, including at least one of A, B and C, which can represent any one or more elements selected from the set of A, B and C.

[0129] In the description of the embodiments of the present application, the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the meaning of the term "a plurality of" is two or more, unless otherwise specified and limited.

[0130] In the description of the embodiments of the present application, the terms "first", "second", "third", "fourth" and the like (if any) are used to distinguish similar objects, and do not necessarily have to be described in a particular order or sequential order. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or apparatus including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or apparatuses.

[0131] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; 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.

Claims

1. A housing, used for an energy storage device, characterized in that: The housing comprises: A plurality of plate bodies (110) are provided, wherein the plurality of plate bodies (110) constitute a receiving cavity, wherein the receiving cavity is used to receive a battery module, and the plurality of plate bodies (110) are detachably connected to each other.

2. The housing according to claim 1, wherein: The invention also includes a frame (120), wherein the frame (120) includes a main frame (121) and an inner liner (122) connected to the main frame (121), and a plurality of the plate bodies (110) are respectively connected to the main frame (121), and the inner liner (122) is used for installing the battery module.

3. The housing according to claim 2, wherein: In two adjacent plates (110), an embedding groove (130) is formed between one of the plates (110) and the frame (120), and a partial structure of the other plate (110) forms an embedding portion, which is embedded in the embedding groove (130).

4. The housing according to any one of claims 1 to 3, characterized in that A connecting portion is provided between at least two of the plates (110), and the connecting portions of at least two adjacent plates (110) are opposite and at least partially overlapped along a first direction, and are detachably connected along a second direction, wherein the first direction and the second direction intersect.

5. The housing according to claim 4, wherein: A bending portion (114) is provided between at least two of the plates (110), and in the two plates (110) connected to each other, at least a portion of the bending portion (114) is bent in a direction toward each other; The bending portion (114) forms the connecting portion, and the bending portions (114) of two adjacent plates (110) are opposite to each other and at least partially overlap along a first direction, and are detachably connected along a second direction.

6. The housing according to claim 5, wherein: The bending portion (114) comprises a first bending edge (1141), and the first bending edges (1141) of two adjacent plates (110) are opposite to each other along a first direction and at least partially overlap.

7. The housing according to claim 6, wherein: The bending portion (114) further includes a second bending edge (1142), and two adjacent plates (110) are detachably connected along a second direction.

8. The housing according to any one of claims 1 to 3, characterized in that It also includes a sealing member (140), wherein the sealing member (140) is arranged between the connecting portions of two adjacent plates (110) along the first direction and / or the second direction.

9. The housing according to claim 2 or 3, characterized in that: The invention also includes a protective member (150). A gap is provided between the plate body (110) and the frame (120), and the protective member (150) is arranged in the gap.

10. The housing according to claim 4, wherein: The plate body (110) includes a top plate (111), a bottom plate (112), and a plurality of side plates (113) connected end to end, wherein the top plate (111), the bottom plate (112), and the plurality of side plates (113) jointly enclose the accommodating cavity; The connecting portion is provided on at least one of between the top plate (111) and the side plate (113), between two adjacent side plates (113), and between the bottom plate (112) and the side plate (113).

11. The housing according to claim 10, wherein: The side panels (113) include a left side panel (1131), a rear side panel (1132), a right side panel (1133) and a front side panel (1134); The connecting portion is provided on at least one of the left side panel (1131) and the rear side panel (1132), the rear side panel (1132) and the right side panel (1133), the right side panel (1133) and the front side panel (1134), and the front side panel (1134) and the left side panel (1131).

12. The housing according to claim 11, wherein: The number of the side panels (113) includes at least two, and two adjacent side panels (113) are spliced ​​along the extension direction of the shell width, and at least parts of the two adjacent side panels (113) overlap.

13. The housing according to claim 12, wherein: The gap between two adjacent side panels (113) is filled with a waterproof member (160), and the waterproof member (160) extends along the length direction of the side panels (113).

14. The housing according to claim 2 or 3, characterized in that: It also includes a plate support member (170), and the plate support member (170) is connected to a side of the plate (110) close to the frame (120).

15. The housing according to claim 14, wherein: The plate support member (170) includes a side plate support beam, and the side plate support beam is connected to a side of the side plate (113) close to the frame (120); And / or, the plate support member (170) includes a top plate support beam, and the top plate support beam is connected to a side of the top plate (111) close to the frame (120); And / or, the plate support member (170) includes a bottom plate support beam, and the bottom plate support beam is connected to a side of the bottom plate (112) close to the frame (120).

16. The housing according to claim 9, wherein The size of the gap is not less than the thickness of the protective member (150), and the size range of the gap is between 60 mm and 80 mm.

17. An energy storage device, characterized in that: The invention comprises a battery module and a shell according to any one of claims 1 to 16, wherein the battery module is arranged in the shell.

18. The energy storage device according to claim 17, characterized in that The battery module is a battery pack, which is arranged in an inner liner (122) of the shell. A cooling medium is contained in the inner liner, and the battery pack is in direct contact with the cooling medium.

19. The energy storage device according to claim 18, characterized in that The energy storage device includes an energy storage container, an energy storage cabinet or an energy storage station.

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