Shell structure and energy storage equipment

Abstract

The utility model provides a shell structure and energy storage equipment. The shell structure comprises a bottom shell, a top shell and a cladding shell. The bottom shell comprises a bottom shell body and at least three first supporting parts arranged on the bottom shell body. The top shell comprises a top shell body and at least three second supporting parts arranged on the top shell body, and each second supporting part is connected with one corresponding first supporting part, so that the top shell and the bottom shell jointly form a cage frame structure. The wrapping shell is detachably connected to the cage frame structure and wraps the periphery of the cage frame structure, and the wrapping shell shields the hollowed-out area of the cage frame structure. Through the cage frame structure, the structural strength of the top shell is improved, when the shell structure falls off or is hit, the cladding plays a role in buffering, the stress of the top shell is relieved, even if the cladding is damaged and maintained, only the cladding needs to be replaced, the top shell does not need to be replaced, the maintenance cost is reduced, and compared with a double-layer shell structure or a structure with a large number of reinforcing ribs, the structure is simple and convenient. The cladding shell and the top shell occupy smaller space, the assembly space in the shell structure is guaranteed, and the space utilization rate is increased.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and specifically to a shell structure and energy storage equipment. Background Art

[0002] The outer shell of current energy storage devices is usually composed of a single-layer upper and lower shell combination. Since the lower shell needs to accommodate the battery pack, the structural strength of the lower shell is generally higher than that of the upper shell. When the energy storage device falls or is hit, the lower shell can still remain intact, but the upper shell is prone to cracking and damage due to insufficient strength. This, on the one hand, requires replacing the entire upper shell during maintenance, which is costly. On the other hand, it is easy to cause the devices in the energy storage device to be directly exposed to the external environment, increasing safety risks. Utility Model Content

[0003] In view of this, the present application provides a shell structure and energy storage device capable of improving structural strength.

[0004] In one embodiment of the present application, a housing structure is provided for use in an energy storage device. The housing structure includes a bottom shell, a top shell, and an enclosure. The bottom shell includes a bottom shell body and at least three first support portions provided on the bottom shell body. The top shell includes a top shell body and at least three second support portions provided on the top shell body. Each of the plurality of second support portions is respectively connected to each of the plurality of first support portions, so that the top shell and the bottom shell together form a cage structure. The enclosure is detachably connected to the cage structure and covers the outer periphery of the cage structure, and the enclosure shields the hollow area of ​​the cage structure.

[0005] In the shell structure provided by the present application, the first supporting portion of the bottom shell is connected to the second supporting portion of the top shell, so that the bottom shell and the top shell form a cage structure, and the connection between the top shell and the bottom shell with higher strength is more stable, thereby improving the structural strength of the top shell, and then the outer periphery of the cage structure is covered by the cladding and the hollow area of ​​the cage structure is shielded, so that when the shell structure falls or is hit, the cladding can play a buffering role, reduce the force on the top shell, and further improve the reliability of the top shell. Even if the cladding is damaged, only the cladding needs to be replaced during maintenance, without replacing the top shell, thereby reducing the maintenance cost. In addition, compared with the double-layer shell structure or the structure with a large number of reinforcing ribs, the cladding and the top shell occupy less space, ensuring the assembly space in the shell structure and improving the space utilization. In summary, the shell structure provided by the present application can not only improve the structural strength, but also reduce the maintenance cost and improve the space utilization.

[0006] In some embodiments, the number of the first supporting portions and the number of the second supporting portions are both four. The four first supporting portions are distributed at the four vertices of a rectangle and are respectively connected to the four second supporting portions.

[0007] In some embodiments, the first support portion is provided with a first mounting hole, the second support portion is provided with a second mounting hole, the first mounting hole is aligned with the second mounting hole, and the shell structure also includes a first locking member, which is at least partially located in the first mounting hole and the second mounting hole to fix the first support portion and the second support portion.

[0008] In some embodiments, the first support portion includes a first column and a plurality of first reinforcing ribs, the first column is arranged on the bottom shell body, and the plurality of first reinforcing ribs are arranged at intervals and connect the first column and the bottom shell body; the second support portion includes a second column and a plurality of second reinforcing ribs, the second column is arranged on the top shell body, and the plurality of second reinforcing ribs are arranged at intervals and connect the second column and the top shell body.

[0009] In some embodiments, the enclosure has an inner ring edge, which encloses an opening. The outer edge of the top shell body has a limiting step. The inner ring edge and the limiting step are embedded and matched, and part of the top shell body is exposed to the outside through the opening.

[0010] In some embodiments, the top shell body includes an edge portion and a main body portion, the edge portion is arranged at the edge of the main body portion, the main body portion protrudes toward the opening relative to the edge portion to form a limiting step, the main body portion is exposed to the outside through the opening, the second support portion connects the edge portion and the main body portion, and the shell is connected to the edge portion.

[0011] In some embodiments, a through hole is provided on the edge portion, a mounting portion is provided on the side of the shell facing the edge portion, a third mounting hole is provided on the mounting portion, and the third mounting hole is aligned with the through hole. The shell structure also includes a second locking member, which passes through the through hole and is partially provided in the third mounting hole to fix the edge portion and the shell.

[0012] In some embodiments, the edge portion is provided with a surrounding wall at the through hole, which surrounds the through hole and protrudes toward the opening, and the surrounding wall forms a receiving groove, which receives the mounting portion of the receiving groove. The groove wall of the receiving groove limits the mounting portion to position the mounting portion so that the third mounting hole is aligned with the through hole.

[0013] In some embodiments, the edge portion is provided with a first snap-fit ​​portion, the enclosure shell has a second snap-fit ​​portion, the first snap-fit ​​portion is snap-fitted with the second snap-fit ​​portion to fix the enclosure shell and the edge portion, the enclosure shell also has a third snap-fit ​​portion, and the bottom shell is provided with a fourth snap-fit ​​portion, the third snap-fit ​​portion is snap-fitted with the fourth snap-fit ​​portion to fix the enclosure shell and the bottom shell.

[0014] In one embodiment of the present application, an energy storage device is also provided. The energy storage device includes a first panel, a second panel and a shell structure in any of the above embodiments. The first panel and the second panel are both connected to the top shell, the bottom shell and the enclosing shell. The first panel, the second panel, the top shell, the bottom shell and the enclosing shell enclose a receiving cavity.

[0015] In the energy storage device provided by the present application, the first support portion of the bottom shell is connected to the second support portion of the top shell, so that the bottom shell and the top shell form a cage structure, and the connection between the top shell and the bottom shell with higher strength is more stable, thereby improving the structural strength of the top shell, and then the outer periphery of the cage structure is covered by the cladding and the hollow area of ​​the cage structure is shielded, so that when the shell structure falls or is hit, the cladding can play a buffering role, reduce the force on the top shell, and further improve the reliability of the top shell. Even if the cladding is damaged, only the cladding needs to be replaced during maintenance, without replacing the top shell, thereby reducing the maintenance cost. In addition, compared with the double-layer shell structure or the structure with a large number of reinforcing ribs, the cladding and the top shell occupy less space, ensuring the assembly space in the shell structure and improving space utilization. In summary, the shell structure provided by the present application can not only improve the structural strength, but also reduce maintenance costs and improve space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the energy storage device and the shell structure in one embodiment of the present application.

[0017] Figure 2 for Figure 1 A three-dimensional image of the energy storage device and shell structure from another perspective.

[0018] Figure 3 for Figure 1 Exploded view of the energy storage device and shell structure.

[0019] Figure 4 for Figure 2 A three-dimensional image of the energy storage device after removing the shell.

[0020] Figure 5 This is a three-dimensional diagram of the bottom shell in one embodiment of the present application.

[0021] Figure 6 This is a three-dimensional diagram of the top case in one embodiment of the present application.

[0022] Figure 7 for Figure 6 A three-dimensional image of the top case from another perspective.

[0023] Figure 8 for Figure 3 A three-dimensional view of the middle cladding.

[0024] Description of main component symbols

[0025] 100-shell structure 200-energy storage device 201-first panel

[0026] 202-second panel 203-accommodation cavity 10-bottom shell

[0027] 11-bottom shell body 12-first support portion 121-first mounting hole

[0028] 122-first column 123-first reinforcing rib 13-cell shell

[0029] 14-fourth clamping portion 20-top shell 21-top shell body

[0030] 211-limiting step 212-edge portion 2121-through hole

[0031] 2122-enclosure wall 2123-receiving groove 2124-first clamping portion

[0032] 213-body portion 2131-limiting surface 22-second support portion

[0033] 221-second mounting hole 222-second column 223-second reinforcing rib

[0034] 30-enclosure 31-inner ring edge 32-opening

[0035] 33-mounting portion 331-third mounting hole 332-third column

[0036] 333-third reinforcing rib 34-second clamping portion 35-third clamping portion

[0037] 40-cage structure 41-hollow area. DETAILED DESCRIPTION

[0038] The technical solutions of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0039] It should be noted that when a component is referred to as being "fixed" to another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as being "disposed" on another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right", and the like used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0041] The current shell of the energy storage device is usually composed of a single-layer upper and lower shell combination. The lower shell has a higher structural strength than the upper shell because it needs to accommodate the battery pack. When the energy storage device falls or is hit, the lower shell can still remain intact, but the upper shell is easy to crack and be damaged due to insufficient strength. As a result, on the one hand, it will lead to the need to replace the entire upper shell during maintenance, which is costly. On the other hand, it is also easy to cause the devices inside the energy storage device to be directly exposed to the external environment, increasing the safety hazard.

[0042] Therefore, the present application provides a shell structure capable of improving structural strength and an energy storage device. The shell structure includes a bottom shell, a top shell, and a cover shell. The bottom shell includes a bottom shell body and at least three first support portions provided on the bottom shell body. The top shell includes a top shell body and at least three second support portions provided on the top shell body. Each of the second support portions is connected to each of the first support portions, so that the top shell and the bottom shell form a cage structure. The cover shell is detachably connected to the cage structure and covers the outer periphery of the cage structure. The cover shell shields the hollowed-out area of the cage structure.

[0043] In the shell structure provided by the present application, the first support portion of the bottom shell is connected to the second support portion of the top shell, so that the bottom shell and the top shell form a cage structure. The connection between the top shell and the bottom shell with higher strength is more stable, thereby improving the structural strength of the top shell. Then, the cover shell covers the outer periphery of the cage structure and shields the hollowed-out area of the cage structure. When the shell structure falls or is hit, the cover shell can play a buffering role to reduce the stress on the top shell, further improving the reliability of the top shell. Even if the cover shell is damaged, only the cover shell needs to be replaced during maintenance, without the need to replace the top shell, thereby reducing the maintenance cost. In addition, compared with a double-layer shell structure or a structure with a large number of reinforcing ribs, the cover shell and the top shell occupy less space, ensuring the assembly space inside the shell structure and improving the space utilization. In summary, the shell structure provided by the present application not only improves the structural strength, but also reduces the maintenance cost and improves the space utilization.

[0044] The following will be described in detail with reference to the accompanying drawings. Figures 1 to 8 Some embodiments of the present application will be described in detail. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0045] As shown in the drawings, Figures 1 to 2As shown, some embodiments of the present application provide a housing structure 100 and an energy storage device 200. The energy storage device 200 comprises the housing structure 100, which provides structural strength for the energy storage device 200. For example, the energy storage device 200 can be a mobile power supply applied in outdoor scenarios, or a home energy storage system for home energy storage, etc.

[0046] In some embodiments, as shown in Figures 2 to 4 The housing structure 100 comprises a bottom shell 10, a top shell 20, and a cladding 30. The bottom shell 10 comprises a bottom shell body 11 and at least three first support portions 12 arranged on the bottom shell body 11. The top shell 20 comprises a top shell body 21 and at least three second support portions 22 arranged on the top shell body 21, the second support portions 22 corresponding to the first support portions 12 one by one, and each second support portion 22 is connected to a corresponding first support portion 12, so that the top shell 20 and the bottom shell 10 jointly form a cage structure 40. The cladding 30 is detachably connected to the cage structure 40 and covers the outer periphery of the cage structure 40, and the cladding 30 shields the hollowed-out area 41 of the cage structure 40 to enclose the cage structure 40 and protect the components in the energy storage device 200.

[0047] Optionally, as shown in Figure 2 and Figure 5 The inner surface of the bottom shell body 11 forms a battery cell shell 13 for accommodating a plurality of battery cells in the energy storage device 200, and the structural strength of the battery cell shell 13 reaches a preset strength to protect the battery cells.

[0048] As shown in Figures 2 to 4 In the above-mentioned housing structure 100, the first support portions 12 of the bottom shell 10 are connected to the second support portions 22 of the top shell 20, so that the bottom shell 10 and the top shell 20 form the cage structure 40, and the connection between the top shell 20 and the bottom shell 10 with higher strength is more stable, thereby improving the structural strength of the top shell 20. Then, the cladding 30 covers the outer periphery of the cage structure 40 and shields the hollowed-out area 41 of the cage structure 40, so that when the housing structure 100 falls or is hit, the cladding 30 can play a buffering role to reduce the stress on the top shell 20, and better improve the reliability of the top shell 20. Even if the cladding 30 is damaged, only the cladding 30 needs to be replaced during maintenance, without the need to replace the top shell 20, thereby also reducing the maintenance cost. In addition, compared with a double-shell structure or a structure with a large number of reinforcing ribs, the cladding 30 and the top shell 20 occupy less space, ensuring the assembly space in the housing structure 100 and improving the space utilization. In summary, the housing structure 100 not only improves the structural strength of the energy storage device 200, but also reduces the maintenance cost and improves the space utilization.

[0049] In some embodiments, as shown in Figure 1 , Figure 2 andFigure 4 As shown, the energy storage device 200 also includes a first panel 201 and a second panel 202, which are respectively arranged on opposite sides of the energy storage device 200, and the first panel 201 and the second panel 202 are both connected to the bottom shell 10, the top shell 20 and the enclosing shell 30. The first panel 201, the second panel 202, the bottom shell 10, the top shell 20 and the enclosing shell 30 together enclose a receiving cavity 203, which is used to accommodate components in the energy storage device 200.

[0050] Optionally, the first panel 201 and the second panel 202 have buttons or sockets, etc., for users to operate and use the energy storage device 200.

[0051] Optionally, the energy storage device 200 further includes a circuit board, which is disposed in the accommodating cavity 203. The circuit board can be used as an inverter module to control the charging and discharging of the battery cells, so that the battery cells can supply power to external devices, or the external devices can charge the battery cells.

[0052] In some embodiments, as Figure 3 and Figure 4 As shown, the number of the first support parts 12 and the number of the second support parts 22 are both four, and the four first support parts 12 and the four second support parts 22 are distributed at the four vertices of a rectangle, so that the cage structure 40 forms a rectangular parallelepiped or cube structure, thereby providing higher structural strength for the energy storage device 200.

[0053] Optionally, the energy storage device 200 also has a rectangular parallelepiped or cubic structure to adapt to the shape of the cage structure 40, so that each corner of the energy storage device 200 can be supported by the first support part 12 and the second support part 22 to ensure the structural strength of the energy storage device 200.

[0054] It is understandable that in some other embodiments, the number of the first support parts 12 and the number of the second support parts 22 can be three, five or six, etc., and can be distributed in the form of vertices of a triangle, a regular pentagon or a regular hexagon, as long as the structural strength required by the energy storage device 200 is met.

[0055] In some embodiments, as Figure 4 、 Figure 5 and Figure 6As shown, the first support portion 12 is provided with a first mounting hole 121, and the second support portion 22 is provided with a second mounting hole 221, with the first mounting hole 121 aligned with the second mounting hole 221. The housing structure 100 further includes a first locking member (not shown), which is at least partially located within the first mounting hole 121 and the second mounting hole 221 to secure the first support portion 12 and the second support portion 22. Optionally, the first mounting hole 121 and the second mounting hole 221 are both provided with internal threads, and the first locking member is a screw, the external threads of the screw engaging with the internal threads of the first mounting hole 121 and the second mounting hole 221 to secure the first support portion 12 and the second support portion 22.

[0056] In some embodiments, the first support portion 12 includes a first column 122 and a plurality of first reinforcing ribs 123. The first column 122 is disposed on the bottom shell body 11, and the first mounting hole 121 is disposed at one end of the first column 122 away from the bottom shell body 11. The plurality of first reinforcing ribs 123 are spaced apart and connect the first column 122 and the bottom shell body 11. The first reinforcing ribs 123 are used to enhance the connection strength between the first column 122 and the bottom shell body 11, thereby enhancing the structural strength of the first support portion 12. Optionally, due to the high structural strength of the battery cell housing 13, some of the first reinforcing ribs 123 are also connected to the battery cell housing 13 to enhance the structural strength of the first support portion 12.

[0057] In some embodiments, the second support portion 22 includes a second column 222 and a plurality of second reinforcing ribs 223. The second column 222 is arranged on the top shell body 21. The second mounting hole 221 is arranged at one end of the second column 222 away from the top shell body 21. The plurality of second reinforcing ribs 223 are arranged at intervals and connect the second column 222 and the top shell body 21. The second reinforcing ribs 223 are used to enhance the connection strength between the second column 222 and the top shell body 21, thereby enhancing the structural strength of the second support portion 22.

[0058] In some embodiments, as Figure 3 、 Figure 7 and Figure 8 As shown, the cladding 30 has an inner ring 31 that encloses an opening 32. The outer edge of the top shell body 21 has a limiting step 211. The inner ring 31 and the limiting step 211 are embedded and matched to limit the relative movement between the cladding 30 and the top shell body 21, thereby improving the stability between the cladding 30 and the top shell body 21. A portion of the top shell body 21 is exposed to the outside through the opening 32, serving as a partial outer shell of the energy storage device 200.

[0059] In some embodiments, the top cover body 21 comprises an edge portion 212 and a body portion 213, the edge portion 212 is arranged at the edge of the body portion 213, and the body portion 213 protrudes towards the opening 32 relative to the edge portion 212 to form a limiting step 211. The body portion 213 is exposed to the outside through the opening 32 to serve as part of the outer shell of the energy storage device 200, and the shell 30 is connected to the top cover body 21 by connecting the edge portion 212. The second support portion 22 connects the edge portion 212 and the body portion 213, so that both the edge portion 212 and the body portion 213 are supported by the second support portion 22, thereby ensuring the structural strength of the edge portion 212 and the body portion 213.

[0060] Optionally, one side of the edge portion 212 towards the body portion 213 forms a limiting surface 2131, which contacts the wall surface of the opening 32 to limit the relative position between the body portion 213 and the shell 30.

[0061] In some embodiments, the edge portion 212 is provided with a through hole 2121, and the side of the shell 30 towards the edge portion 212 is provided with a mounting portion 33, which is provided with a third mounting hole 331 aligned with the through hole 2121. The shell structure 100 further comprises a second locking member (not shown in the figure), which passes through the through hole 2121 and is partially arranged in the third mounting hole 331 to fix the edge portion 212 and the shell 30, thereby fixing the shell 30 and the top cover body 21.

[0062] Optionally, the third mounting hole 331 has an internal thread, and the second locking member is a screw, the external thread of which is engaged with the internal thread of the third mounting hole 331 to fix the shell 30 and the top cover body 21.

[0063] Optionally, the mounting portion 33 comprises a third column body 332 and a plurality of third reinforcing ribs 333, the third column body 332 is arranged on the inner surface of the shell 30, the third mounting hole 331 is arranged at the end of the third column body 332 away from the shell 30, and the plurality of third reinforcing ribs 333 are arranged in a spaced manner and connect the third column body 332 and the shell 30, the third reinforcing ribs 333 are used to improve the connection strength between the third column body 332 and the shell 30, thereby improving the structural strength of the mounting portion 33.

[0064] In some embodiments, the edge portion 212 is provided with a surrounding wall 2122 at the through hole 2121, the surrounding wall 2122 surrounds the through hole 2121 and protrudes towards the opening 32, the surrounding wall 2122 forms a receiving groove 2123, the receiving groove 2123 receives one end of the third column body 332, and the groove wall of the receiving groove 2123 limits the end of the third column body 332 to position the third column body 332 so that the third mounting hole 331 is aligned with the through hole 2121.

[0065] In some embodiments, as Figures 6 to 8As shown, the edge portion 212 is provided with a first clamping portion 2124, the shell 30 is provided with a second clamping portion 34, the first clamping portion 2124 and the second clamping portion 34 are clamped and matched to fix the shell 30 and the edge portion 212. Exemplarily, the first clamping portion 2124 is a buckle, and the second clamping portion 34 is a clamping groove; or, the first clamping portion 2124 is a clamping groove, and the second clamping portion 34 is a buckle.

[0066] Optionally, the first clamping portion 2124 and the second clamping portion 34 each have a plurality of clamping portions, and the first clamping portion 2124 and the second clamping portion 34 are arranged one by one in a one-to-one correspondence, so as to improve the installation stability of the shell 30 and the edge portion 212.

[0067] In some embodiments, as shown in Figure 5 and Figure 8 As shown, the shell 30 is further provided with a third clamping portion 35, and the bottom shell 10 is provided with a fourth clamping portion 14, the third clamping portion 35 and the fourth clamping portion 14 are clamped and matched to fix the shell 30 and the bottom shell 10. Exemplarily, the third clamping portion 35 is a buckle, and the fourth clamping portion 14 is a clamping groove; or, the third clamping portion 35 is a clamping groove, and the fourth clamping portion 14 is a buckle.

[0068] Optionally, the third clamping portion 35 and the fourth clamping portion 14 each have a plurality of clamping portions, and the third clamping portion 35 and the fourth clamping portion 14 are arranged one by one in a one-to-one correspondence, so as to improve the installation stability of the shell 30 and the bottom shell 10.

[0069] In addition, those skilled in the art should understand that the above-mentioned embodiments are only used to illustrate the present application, and are not used as limitation to the present application, and any appropriate changes and modifications made to the above embodiments within the scope of the spirit of the present application are within the scope of the disclosure of the present application.

Claims

1. A housing structure, applied to energy storage equipment, characterized in that: The housing structure comprises: A bottom case, comprising a bottom case body and at least three first support portions provided on the bottom case body; a top shell, comprising a top shell body and at least three second support portions provided on the top shell body, each of the plurality of second support portions being connected to each of the plurality of first support portions, so that the top shell and the bottom shell together form a cage structure; and The enclosure is detachably connected to the cage structure and covers the outer periphery of the cage structure. The enclosure covers the hollow area of ​​the cage structure.

2. The housing structure according to claim 1, wherein: The number of the first supporting parts and the number of the second supporting parts are both four. The four first supporting parts are distributed at four vertices of a rectangle and are respectively connected to the four second supporting parts.

3. The housing structure according to claim 1, wherein: The first supporting portion is provided with a first mounting hole, and the second supporting portion is provided with a second mounting hole. The first mounting hole is aligned with the second mounting hole. The shell structure also includes a first locking member, which is at least partially located in the first mounting hole and the second mounting hole to fix the first supporting portion and the second supporting portion.

4. The housing structure according to claim 1, wherein: The first supporting part includes a first column and a plurality of first reinforcing ribs, the first column is arranged on the bottom shell body, and the plurality of first reinforcing ribs are arranged at intervals and connect the first column and the bottom shell body; the second supporting part includes a second column and a plurality of second reinforcing ribs, the second column is arranged on the top shell body, and the plurality of second reinforcing ribs are arranged at intervals and connect the second column and the top shell body.

5. The housing structure according to any one of claims 1 to 4, wherein: The enclosure has an inner ring edge, which encloses an opening. The outer edge of the top shell body has a limiting step. The inner ring edge and the limiting step are embedded and matched, and part of the top shell body is exposed to the outside through the opening.

6. The housing structure according to claim 5, wherein: The top shell body includes an edge portion and a main body portion, the edge portion is arranged at the edge of the main body portion, the main body portion protrudes toward the opening relative to the edge portion to form the limiting step, and the main body portion is exposed to the outside through the opening, the second supporting portion connects the edge portion and the main body portion, and the shell is connected to the edge portion.

7. The housing structure according to claim 6, wherein: The edge portion is provided with a through hole, and the shell is provided with a mounting portion on a side facing the edge portion. The mounting portion is provided with a third mounting hole, and the third mounting hole is aligned with the through hole. The shell structure also includes a second locking member, which passes through the through hole and is partially provided in the third mounting hole to fix the edge portion and the shell.

8. The housing structure according to claim 7, wherein: The edge portion is provided with a surrounding wall at the through hole, the surrounding wall surrounds the through hole and protrudes toward the opening, the surrounding wall forms a receiving groove, the receiving groove receives the mounting portion, the groove wall of the receiving groove limits the mounting portion to position the mounting portion so that the third mounting hole is aligned with the through hole.

9. The housing structure according to claim 6, wherein: The edge portion is provided with a first snap-fitting portion, the enclosure shell has a second snap-fitting portion, the first snap-fitting portion and the second snap-fitting portion are snap-fitted to fix the enclosure shell and the edge portion, the enclosure shell also has a third snap-fitting portion, the bottom shell is provided with a fourth snap-fitting portion, the third snap-fitting portion and the fourth snap-fitting portion are snap-fitted to fix the enclosure shell and the bottom shell.

10. An energy storage device, characterized in that: The energy storage device includes a first panel, a second panel and a shell structure as described in any one of claims 1 to 9, the first panel and the second panel are both connected to the top shell, the bottom shell and the enclosing shell, and the first panel, the second panel, the top shell, the bottom shell and the enclosing shell enclose a accommodating cavity.

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