Energy storage cabinet and energy storage system

Abstract

The utility model discloses an energy storage cabinet and an energy storage system, including a plurality of battery packs and an energy storage cabinet, the plurality of battery packs are assembled in the cabinet body at intervals, the energy storage cabinet includes a cabinet body, a connecting assembly and a lifting hook, the cabinet body includes a plurality of first crossbeams and a plurality of second crossbeams, the plurality of first crossbeams and the plurality of second crossbeams are connected in a cross manner, and the plurality of first crossbeams and the plurality of second crossbeams are connected in a cross manner. The first cross beam extends along the length direction of the cabinet body, and the second cross beam extends along the width direction of the cabinet body. The connecting assembly is connected with the first cross beam and the second cross beam. The hook is connected with the first beam and the second beam through a connecting assembly. The energy storage cabinet and the energy storage system solve the technical problem that when the sodium-ion battery pack is assembled, the energy storage cabinet ensures that the lifting hook has enough bearing capacity and the internal space of the energy storage cabinet is increased at the same time.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to an energy storage cabinet and energy storage system. Background Technology

[0002] Existing lithium-ion energy storage cabinets typically employ a column structure to secure the battery packs, creating an internal cavity for housing them. Specifically, the columns protrude from a first and second crossbeam that form the top of the cabinet, allowing the columns to insert into the cavity. Hooks are connected to the protruding portions of the columns from the first and second crossbeams, ensuring a stable connection between the hooks and the energy storage cabinet. This design has been widely adopted in lithium-ion energy storage cabinets.

[0003] However, under the same voltage requirements, sodium-ion battery packs are larger and heavier than lithium-ion battery packs. This makes sodium-ion energy storage cabinets larger in volume and weight than lithium-ion energy storage cabinets. Therefore, the design of sodium-ion energy storage cabinets needs to consider higher load-bearing capacity hooks and a larger internal storage space to accommodate the size and weight of sodium-ion battery packs. Utility Model Content

[0004] One objective of this utility model is to provide an energy storage cabinet and energy storage system, which aims to solve the technical problem of increasing the internal space of the energy storage cabinet while ensuring that the hook has sufficient load-bearing capacity when assembling sodium-ion battery packs.

[0005] To achieve the above objectives, this utility model provides a solution: an energy storage cabinet and energy storage system, comprising: a cabinet body, connecting components, and hooks. The cabinet body includes multiple first crossbeams and multiple second crossbeams, which are interconnected. The first crossbeams extend along the length of the cabinet body, and the second crossbeams extend along the width of the cabinet body. The connecting components are connected to the first crossbeams and the second crossbeams respectively. The hooks are connected to the first crossbeams and the second crossbeams via the connecting components.

[0006] Optionally, the connecting assembly includes a first connector, perpendicular to the thickness direction of the first connector, with adjacent sides of the first connector connected to the first crossbeam and the second crossbeam respectively, and the hook connected to the first crossbeam and the second crossbeam through the first connector.

[0007] Optionally, the connecting assembly includes a second connector, which passes through and is connected to the first connector. The second connector has a threaded hole along the thickness direction of the first connector. The hook is threadedly engaged with the second connector through the threaded hole. The depth of the threaded hole is greater than the thickness of the first connector.

[0008] Optionally, the depth of the threaded hole is greater than the thickness of the first connector, the depth of the threaded hole is D1, the thickness of the first connector is D2, and 4.1≤D1 / D2≤5.2.

[0009] Optionally, the first connector includes a first wall and a second wall disposed opposite to each other along its thickness direction. The second connector includes a first part and a second part connected to each other, a threaded hole passing through the first part and the second part in sequence, the first part passing through the first wall and the second wall in sequence, the second part being disposed on the side of the second wall away from the first wall, the second part abutting against the first wall, and a hook extending relative to the first part.

[0010] Optionally, the first connector includes a third wall and a fourth wall, which are disposed on adjacent sides of the first connector in a direction perpendicular to the thickness of the first connector. The third wall is connected to the first wall and the second wall respectively, and the fourth wall is connected to the first wall and the second wall respectively. The first connector is connected to the first beam through the third wall and the second beam through the fourth wall.

[0011] Optionally, the diameter of the first part is smaller than the diameter of the second part.

[0012] Optionally, the energy storage cabinet includes a sealing portion located at the end of the second portion away from the first portion to close the threaded hole.

[0013] Optionally, the sealing part and the second part are connected, and the sealing part and the hook are spaced apart.

[0014] Optionally, the cabinet includes vertical beams, multiple third horizontal beams, multiple fourth horizontal beams, reinforcing beams, and a base plate. Multiple first horizontal beams and multiple second horizontal beams are interconnected. One end of the vertical beam is connected to at least one of the first and second horizontal beams, and the other end of the vertical beam is connected to at least one of the third and fourth horizontal beams. The base plate is connected to the third and fourth horizontal beams respectively. The reinforcing beam is located on the side of the base plate away from the first horizontal beam and connects to adjacent third horizontal beams and / or adjacent fourth horizontal beams.

[0015] Optionally, the third crossbeam has a first forklift hole, with adjacent first forklift holes facing each other, and the fourth crossbeam has a second forklift hole, with adjacent second forklift holes facing each other. The first and second forklift holes are used for forklift forks to pass through to move the energy storage cabinet.

[0016] Optionally, the energy storage cabinet includes protective components disposed on the third and fourth crossbeams, which are used to cover the first and second forklift holes.

[0017] Optionally, the energy storage cabinet includes vertical beams, which are connected to a first crossbeam and / or a second crossbeam. The projection of the vertical beams onto a reference plane formed by the first and second crossbeams overlaps with the first or second crossbeam.

[0018] To achieve the above objectives, the present invention provides an energy storage system comprising multiple battery packs and an energy storage cabinet, wherein the multiple battery packs are spaced apart and assembled inside the cabinet.

[0019] The beneficial effects of this utility model are as follows:

[0020] The energy storage cabinet and system include a cabinet body, connecting components, and hooks. The cabinet body includes multiple first and second crossbeams that are interconnected. The first crossbeams extend along the length of the cabinet body, and the second crossbeams extend along the width of the cabinet body. The connecting components are connected to the first and second crossbeams respectively. The hooks are connected to the first and second crossbeams via the connecting components. After the cabinet body is installed, the direction perpendicular to the ground is the height direction of the cabinet body. The plane formed by the length and width directions of the cabinet body is parallel to the plane of the ground, and the length and width directions of the cabinet body are perpendicular to each other.

[0021] In practical applications, since the hook is connected to the first and second crossbeams through connecting components, there is no need for additional column protrusions to provide a support carrier for hook installation. This significantly increases the usable space inside the cabinet, thereby providing more space for the arrangement of equipment such as battery packs. This design can effectively improve the space utilization of the energy storage cabinet.

[0022] Meanwhile, the connection between the hook and the first and second crossbeams ensures the stability and reliability of the connection between the hook and the cabinet, thereby avoiding structural problems caused by an unstable hook and ensuring the overall safety and stability of the energy storage cabinet during assembly and use.

[0023] This design not only improves the utilization rate of the internal space of the energy storage cabinet, but also ensures the reliability of the hook installation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the energy storage system provided in this embodiment of the utility model;

[0026] Figure 2 This is a partial structural schematic diagram provided by an embodiment of the present invention to illustrate the first and second crossbeams;

[0027] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of a threaded hole provided in an embodiment of the present invention;

[0029] Figure 5 This is a partial structural schematic diagram provided by an embodiment of the present invention to illustrate the third and fourth crossbeams;

[0030] Figure 6 This is a partial structural schematic diagram provided by an embodiment of the present invention to illustrate the first forklift hole and the second forklift hole;

[0031] Figure 7 This is a three-view diagram provided by an embodiment of the present invention for showing the positional relationship of the first or second crossbeam of the vertical beam box.

[0032] Explanation of icon numbers:

[0033] 20. Cabinet; 21. First crossbeam; 22. Second crossbeam; 23. Third crossbeam; 231. First forklift hole; 24. Fourth crossbeam; 241. Second forklift hole; 25. Reinforcing beam; 26. Base plate; 30. Connecting assembly; 31. First connector; 311. First wall; 312. Second wall; 313. Third wall; 314. Fourth wall; 32. Second connector; 321. Threaded hole; 322. First part; 323. Second part; 40. Hook; 50. Sealing part; 60. Protective component; 70. Vertical beam; 80. Battery pack. Detailed Implementation

[0034] Existing lithium-ion energy storage cabinets typically employ a column structure to secure the battery packs, creating an internal cavity within the cabinet for housing them. Specifically, the columns protrude from the crossbeams that form the top of the cabinet, allowing the columns to be inserted into the internal space of the energy storage cabinet. Hooks are connected to the protruding portion of the columns from the crossbeams, ensuring a stable connection between the hooks and the energy storage cabinet. This design has been widely adopted in lithium-ion energy storage cabinets.

[0035] However, under the same voltage requirements, sodium-ion battery packs are larger and heavier than lithium-ion battery packs. This makes sodium-ion energy storage cabinets larger in volume and weight than lithium-ion energy storage cabinets. Therefore, the design of sodium-ion energy storage cabinets needs to consider higher load-bearing capacity hooks and a larger internal storage space to accommodate the size and weight of the sodium-ion battery packs. Compared to lithium-ion energy storage cabinets, the structural design of sodium-ion energy storage cabinets needs to be more optimized to achieve higher space utilization and stronger load-bearing capacity.

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of an energy storage system provided by an embodiment of the present invention. Figure 2 This is a partial structural schematic diagram provided by an embodiment of the present invention to illustrate the first crossbeam 21 and the second crossbeam 22. Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified view of a portion of region A in the middle.

[0038] This utility model provides an energy storage cabinet and energy storage system, including multiple battery packs 80 and an energy storage cabinet, wherein the multiple battery packs 80 are spaced apart and assembled inside the energy storage cabinet.

[0039] Specifically, the energy storage cabinet includes a cabinet body 20, a connecting assembly 30, and a hook 40. The cabinet body 20 includes multiple first crossbeams 21 and multiple second crossbeams 22, which are interconnected. The first crossbeams 21 extend along the length of the cabinet body 20, and the second crossbeams 22 extend along the width of the cabinet body 20. The connecting assembly 30 is connected to the first crossbeams 21 and the second crossbeams 22 respectively. The hook 40 is connected to the first crossbeams 21 and the second crossbeams 22 via the connecting assembly 30. After the cabinet body 20 is installed, its length and width are perpendicular to each other, and the plane formed by the length and width of the cabinet body 20 is parallel to the plane of the ground. The height of the cabinet body 20 is perpendicular to the ground.

[0040] In practical applications, since the hook 40 is connected to the first crossbeam 21 and the second crossbeam 22 via the connecting assembly 30, there is no need for additional column protrusions to provide a supporting carrier for the installation of the hook 40. This significantly increases the usable space inside the cabinet 20, thereby providing more space for the arrangement of equipment such as the battery pack 80. This design can effectively improve the space utilization rate of the energy storage cabinet, thus providing greater flexibility and convenience for the installation and configuration of the battery pack 80.

[0041] Meanwhile, the connection between the hook 40 and the first crossbeam 21 and the second crossbeam 22 ensures the stability and reliable connection between the hook 40 and the cabinet 20. This structure ensures that the installation strength of the hook 40 meets the relevant requirements of the sodium ion energy storage cabinet, thereby avoiding structural problems caused by an insecure hook 40 and ensuring the overall safety and stability of the energy storage cabinet during assembly and use. This design not only improves the utilization rate of the internal space of the energy storage cabinet but also guarantees the reliability of the hook 40 installation.

[0042] Further, see Figure 3 The connecting component 30 includes a first connector 31. Perpendicular to the thickness direction of the first connector 31, the adjacent two sides of the first connector 31 are respectively connected to the nearest first crossbeam 21 and second crossbeam 22. The hook 40 is connected to the first crossbeam 21 and the second crossbeam 22 through the first connector 31.

[0043] In practical applications, the adjacent sides of the first connector 31 are connected to the first crossbeam 21 and the second crossbeam 22 via surface contact rather than point contact. Due to the increased connection area, surface contact reduces local stress concentration compared to point contact, thereby enhancing the overall strength of the connection. These two adjacent connection surfaces provide a more stable and uniform stress distribution. Furthermore, the two adjacent sides of the first connector 31 are simultaneously connected to the first crossbeam 21 and the second crossbeam 22, forming a triangular-like support frame, thus improving the overall integrity and structural strength of the system composed of the first connector 31, the first crossbeam 21, and the second crossbeam 22.

[0044] Further, see Figure 3 The connecting component 30 includes a second connecting member 32, which passes through and is connected to the first connecting member 31. The second connecting member 32 has a threaded hole 321 along the thickness direction of the first connecting member 31. The hook 40 is threadedly engaged with the second connecting member 32 through the threaded hole 321. The depth of the threaded hole 321 is greater than the thickness of the first connecting member 31. The depth of the threaded hole 321 is D1, and the thickness of the first connecting member 31 is D2. 4.1≤D1 / D2≤5.2. In this embodiment, D1 / D2=4.4. In other embodiments, it can also be D1 / D2=4.2, D1 / D2=5.1, etc.

[0045] In practical applications, the second connector 32 is connected to the first connector 31 via a threaded hole 321. This threaded connection provides strong tensile and shear resistance. The threaded fit ensures that the hook 40 is securely fixed to the connecting assembly 30, reducing the risk of loosening or falling off. This is especially important for the heavier sodium-ion battery pack 80, ensuring that the hook 40 can withstand a large load. Furthermore, the depth of the threaded hole 321 is greater than the thickness of the first connector 31, ensuring the robustness of the threaded connection. The deeper threaded hole 321 provides a larger contact area, helping to evenly distribute the load, avoiding stress concentration, and thus improving the connection strength. This ensures that the hook 40 can still work stably and reliably when bearing a heavy battery pack 80.

[0046] Further, see Figure 3 The first connector 31 includes a first wall 311 and a second wall 312 disposed opposite to each other along its thickness direction. The thickness direction of the first connector 31 is parallel to the height direction of the cabinet 20. The second connector 32 includes a first part 322 and a second part 323 connected to each other. The first part 322 and the second part 323 are two coaxial cylindrical structures. The diameter of the second part 323 is larger than the diameter of the first part 322. A threaded hole 321 passes through the first part 322 and the second part 323 in sequence. The first part 322 passes through the first wall 311 and the second wall 312 in sequence. The second part 323 is disposed on the side of the second wall 312 away from the first wall 311. The second part 323 abuts against the first wall 311. The hook 40 extends relative to the first part 322.

[0047] In practical applications, the force direction of the hook 40 is parallel to the axis of the second connector 32 and directed away from the second connector 32. The second part 323 abuts against the first wall 311, so that the tensile force on the hook 40 is jointly borne by the force between the second part 323 and the first wall 311 and the shear force between the first part 322 and the first connector 31, thereby enhancing the load-bearing capacity of the hook 40. This design helps to evenly distribute the force borne by the hook 40, reduces local stress concentration, further improves the durability and load-bearing capacity of the structure, and ensures the safety of the energy storage cabinet during use.

[0048] Further, see Figure 3 The first connecting member 31 includes a third wall 313 and a fourth wall 314. The third wall 313 and the fourth wall 314 are disposed on adjacent sides of the first connecting member 31 in a direction perpendicular to the thickness of the first connecting member 31. The third wall 313 is connected to the first wall 311 and the second wall 312 respectively, and the fourth wall 314 is connected to the first wall 311 and the second wall 312 respectively. The first connecting member 31 is connected to the first crossbeam 21 through the third wall 313, and the first connecting member 31 is connected to the second crossbeam 22 through the fourth wall 314. The diameter of the first part 322 is smaller than the diameter of the second part 323.

[0049] In practical applications, the connection between the third wall 313 and the fourth wall 314 and the first wall 311 and the second wall 312 allows the first connector 31 to distribute the force more evenly when subjected to external forces. Especially under conditions of large forces, the force can be evenly distributed to the first crossbeam 21 and the second crossbeam 22 through the third wall 313 and the fourth wall 314, avoiding structural damage or fatigue caused by excessive local stress.

[0050] Optionally, refer to Figure 4 The energy storage cabinet includes a sealing part 50, which is disposed at the end of the second part 323 away from the first part 322 to close the threaded hole 321. The sealing part 50 is connected to the second part 323, and the sealing part 50 and the hook 40 are spaced apart.

[0051] In practical applications, the addition of the sealing part 50 enhances the protective performance of the entire structure, especially for the battery pack 80 or other electrical components inside the energy storage cabinet. It prevents moisture and dust from entering the cabinet 20 through the threaded hole 321, reducing the risk of electrical equipment failure caused by moisture or dirt and extending the service life of the equipment.

[0052] In this embodiment, the sealing part 50 is made of metal and is welded to the second part 323. In other embodiments of this application, the sealing part 50 may also be made of rubber and bonded to the second part 323.

[0053] In one embodiment, reference is made to Figure 3 and Figure 7 The cabinet 20 includes a vertical beam 70, a plurality of third horizontal beams 23, a plurality of fourth horizontal beams 24, a reinforcing beam 25, and a base plate 26. The plurality of first horizontal beams 21 and the plurality of second horizontal beams 22 are intersected and connected. One end of the vertical beam 70 is connected to at least one of the first horizontal beams 21 and the second horizontal beams 22, and the other end of the vertical beam 70 is connected to at least one of the third horizontal beams 23 and the fourth horizontal beams 24. The base plate 26 is connected to the third horizontal beams 23 and the fourth horizontal beams 24 respectively. The reinforcing beam 25 is located on the side of the base plate 26 away from the first horizontal beams 21, and the reinforcing beam 25 connects to the adjacent third horizontal beams 23 and / or the adjacent fourth horizontal beams 24.

[0054] In practical applications, the reinforcing beam 25 further enhances the connection strength between the base plate 26 and the third and fourth crossbeams 23 and 24, enabling the energy storage cabinet to withstand greater loads. This is especially crucial during the installation and use of the battery pack 80, ensuring the stability and reliability of the cabinet structure 20. The reinforcing beam 25 is positioned on the side of the base plate 26 away from the first crossbeam 21, increasing the internal space of the cabinet 20 and thus improving the space utilization rate of the energy storage cabinet.

[0055] Optionally, refer to Figure 6The third crossbeam 23 has a first forklift hole 231, and adjacent first forklift holes 231 are arranged opposite each other. The fourth crossbeam 24 has a second forklift hole 241, and adjacent second forklift holes 241 are arranged opposite each other. The first forklift hole 231 and the second forklift hole 241 are used for the forks of forklifts to pass through to move the energy storage cabinet.

[0056] In practical applications, by creating a first forklift hole 231 and a second forklift hole 241 on the third crossbeam 23 and the fourth crossbeam 24 respectively, and arranging adjacent forklift holes opposite each other, a dedicated space for forklift forks to pass through is provided. This design allows the energy storage cabinet to be easily moved by forklifts, adapting to the needs of handling and adjusting the position of the energy storage cabinet in different working environments, significantly improving the convenience and efficiency of operation.

[0057] Furthermore, referring to Figure 6 The energy storage cabinet includes a protective element 60, which is disposed on the third crossbeam 23 and the fourth crossbeam 24. The protective element 60 is used to cover the first forklift hole 231 and the second forklift hole 241.

[0058] In practical applications, by installing protective components 60 covering the first forklift holes 231 and the second forklift holes 241 of the third crossbeam 23 and the fourth crossbeam 24, it is possible to effectively prevent the forklift holes from being accidentally bumped, scratched, or damaged by external objects or personnel when the energy storage cabinet is not in use. This protective design can extend the service life of the forklift holes and the energy storage cabinet itself, reduce the frequency of maintenance and repair, and ensure that the forklift holes are always in good working condition.

[0059] Optionally, refer to Figure 7 The energy storage cabinet includes a vertical beam 70, which is connected to a first horizontal beam 21 and / or a second horizontal beam 22. The projection of the vertical beam 70 on the reference plane formed by the first horizontal beam 21 and the second horizontal beam 22 overlaps with the first horizontal beam 21 or the second horizontal beam 22.

[0060] In practical applications, by overlapping the projection of the vertical beam 70 with the first horizontal beam 21 or the second horizontal beam 22, the vertical beam 70 does not need to protrude from the first horizontal beam 21 or the second horizontal beam 22 to provide a mounting carrier for the hook 40, thereby effectively improving the space utilization of the cabinet 20.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0062] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0063] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An energy storage cabinet, characterized in that, include: The cabinet includes a plurality of first crossbeams and a plurality of second crossbeams, which are intersected and connected to each other. The first crossbeams extend along the length of the cabinet, and the second crossbeams extend along the width of the cabinet. A connecting component, which is connected to the first crossbeam and the second crossbeam respectively; The hook is connected to the first crossbeam and the second crossbeam via the connecting assembly.

2. The energy storage cabinet according to claim 1, characterized in that, The connecting assembly includes a first connector perpendicular to the thickness direction of the first connector. The adjacent sides of the first connector are respectively connected to the nearest first crossbeam and the second crossbeam. The hook is connected to the first crossbeam and the second crossbeam through the first connector.

3. The energy storage cabinet according to claim 2, characterized in that, The connecting assembly includes a second connector, which passes through and is connected to the first connector. The second connector has a threaded hole along the thickness direction of the first connector, and the hook is threadedly engaged with the second connector through the threaded hole.

4. The energy storage cabinet according to claim 3, characterized in that, The depth of the threaded hole is greater than the thickness of the first connector. The depth of the threaded hole is D1, and the thickness of the first connector is D2. 4.1≤D1 / D2≤5.

2.

5. The energy storage cabinet according to claim 3, characterized in that, The first connector includes a first wall and a second wall disposed opposite to each other along its thickness direction; The second connector includes a first part and a second part that are connected to each other. The threaded hole passes through the first part and the second part in sequence. The first part passes through the first wall and the second wall in sequence. The second part is located on the side of the second wall away from the first wall and abuts against the first wall. The hook extends out relative to the first part.

6. The energy storage cabinet according to claim 5, characterized in that, The first connector includes a third wall and a fourth wall, which are disposed on adjacent sides of the first connector in a direction perpendicular to the thickness of the first connector. The third wall is connected to the first wall and the second wall respectively, and the fourth wall is connected to the first wall and the second wall respectively. The first connector is connected to the first crossbeam through the third wall and the second crossbeam through the fourth wall.

7. The energy storage cabinet according to claim 5, characterized in that, The diameter of the first part is smaller than the diameter of the second part.

8. The energy storage cabinet according to claim 5, characterized in that, The energy storage cabinet includes a sealing part, which is disposed at the end of the second part away from the first part to close the threaded hole.

9. The energy storage cabinet according to claim 8, characterized in that, The sealing part is connected to the second part, and the sealing part and the hook are spaced apart.

10. The energy storage cabinet according to claim 1, characterized in that, The cabinet includes vertical beams, multiple third horizontal beams, multiple fourth horizontal beams, reinforcing beams, and a base plate. The multiple first horizontal beams and multiple second horizontal beams are interconnected. One end of each vertical beam is connected to at least one of the first and second horizontal beams, and the other end of each vertical beam is connected to at least one of the third and fourth horizontal beams. The base plate is connected to both the third and fourth horizontal beams. The reinforcing beam is located on the side of the base plate away from the first horizontal beams, and the reinforcing beam connects to adjacent third horizontal beams and / or adjacent fourth horizontal beams.

11. The energy storage cabinet according to claim 10, characterized in that, The third crossbeam has a first forklift hole, and adjacent first forklift holes are arranged opposite each other. The fourth crossbeam has a second forklift hole, and adjacent second forklift holes are arranged opposite each other. The first forklift hole and the second forklift hole are used for the forks of the forklift to pass through to move the energy storage cabinet.

12. The energy storage cabinet according to claim 11, characterized in that, The energy storage cabinet includes a protective component disposed on the third crossbeam and the fourth crossbeam, and the protective component is used to cover the first forklift hole and the second forklift hole.

13. The energy storage cabinet according to claim 1, characterized in that, The energy storage cabinet includes a vertical beam, which is connected to the first horizontal beam and / or the second horizontal beam. The projection of the vertical beam on the reference plane formed by the first horizontal beam and the second horizontal beam overlaps with the first horizontal beam or the second horizontal beam.

14. An energy storage system, characterized in that, It includes multiple battery packs and an energy storage cabinet according to any one of claims 1 to 13, wherein the multiple battery packs are spaced apart and assembled inside the cabinet.

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