Cabinet door of energy storage equipment, energy storage cabinet and electric equipment

Abstract

The utility model provides a cabinet door of energy storage equipment, an energy storage cabinet and electric equipment. The cabinet door comprises a flange and a cover body. The flange is provided with a hollow space along the thickness direction of the flange; the cover body is detachably connected to one side of the flange in the thickness direction and comprises a fireproof part, and the fireproof part covers the hollow space and is used for blocking flames. According to the cabinet door, the fireproof part is arranged on the cover body and covers the pick-and-place opening of the flange, so that the cabinet door has a good flame blocking effect, and when an open fire danger occurs, the situation that the energy storage module is rapidly heated, damaged or failed in function due to flames can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, specifically to an energy storage equipment cabinet door, an energy storage cabinet, and electrical equipment. Background Technology

[0002] Energy storage devices are the energy source for most electrical appliances, and the safety of the energy storage modules directly affects the safety of the appliances. In some related technologies, the cabinet doors of energy storage devices fail to effectively block flames in the event of an open flame, causing the energy storage modules to overheat rapidly. This results in a decrease in the charging and discharging rate of the energy storage modules at high temperatures, severely impacting functionality and even leading to module damage. Utility Model Content

[0003] The embodiments of this utility model provide a cabinet door for an energy storage device, an energy storage cabinet, and electrical equipment, which can improve the technical problem in related technologies that cabinet doors cannot block flames when facing open flame hazards.

[0004] In a first aspect, embodiments of this utility model provide a cabinet door for an energy storage device, comprising:

[0005] A flange, wherein a through-hole is provided in the thickness direction of the flange; and,

[0006] A cover body, detachably connected to one side of the flange in the thickness direction, the cover body including a fireproof part covering the access port to block flames.

[0007] In one embodiment, the fireproof part includes:

[0008] The main body portion, wherein an accommodating space is provided; and,

[0009] A fireproof structure is provided within the accommodating space.

[0010] In one embodiment, the ratio of the area of ​​the orthographic projection of the receiving space to the area of ​​the orthographic projection of the loading / unloading port in a plane perpendicular to the thickness direction of the flange is 1-1.05.

[0011] In one embodiment, the ratio of the size of the body portion to the size of the receiving space along the thickness direction of the body portion is 3 to 5; and / or,

[0012] The ratio of the volume of the fireproof structure to the volume of the accommodating space is 0.9-1.

[0013] In one embodiment, the fireproof structure includes at least one of a mineral material layer, a polymer-based material layer, and a ceramic material layer.

[0014] In one embodiment, the cover further includes a connecting portion extending along the peripheral edge of the body portion and detachably connected to the flange.

[0015] In one embodiment, the cabinet door further includes a first sealing ring and a second sealing ring. The first sealing ring is disposed around the opening, and the second sealing ring is located on the outer periphery of the first sealing ring. Both the first sealing ring and the second sealing ring are sandwiched between the cover and the flange.

[0016] In one embodiment, the flange has a first sealing groove and a second sealing groove surrounding the opening on the side facing the connection portion, the first sealing ring being at least partially disposed in the first sealing groove, and the second sealing ring being at least partially disposed in the second sealing groove; and / or

[0017] The connecting part has a third sealing groove and a fourth sealing groove on the side facing the flange, which surround the pick-up and drop-out port. The first sealing ring is at least partially disposed in the third sealing groove, and the second sealing ring is disposed in the fourth sealing groove.

[0018] In one embodiment, the cabinet door further includes a plurality of bolts, the flange has a plurality of threaded holes on the side facing the connecting portion, the connecting portion has a plurality of connecting through holes, and a bolt passes through one of the connecting through holes and is screwed into the threaded holes.

[0019] Secondly, embodiments of this utility model provide an energy storage cabinet, comprising:

[0020] Cabinet, including installation space;

[0021] An energy storage module is disposed within the installation space; and,

[0022] As described in the embodiments of this application, the cabinet door has a flange welded to the cabinet body, and the cabinet door encloses the installation space.

[0023] In one embodiment, there are multiple installation spaces and multiple cabinets, with each cabinet door enclosing one installation space.

[0024] In one embodiment, the installation space is filled with coolant, and the energy storage module is at least partially immersed in the coolant.

[0025] Thirdly, embodiments of this utility model provide electrical equipment, including the energy storage cabinet described in any one of the embodiments of this application.

[0026] The beneficial effects of the embodiments of this utility model are as follows: By setting a fireproof part on the cover of the cabinet door and covering the flange opening, the cabinet door can have a good flame blocking effect. In the event of an open flame hazard, it can prevent the energy storage module from rapidly heating up, being damaged, or malfunctioning. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0028] Figure 1 This is a structural diagram of the energy storage cabinet provided in an embodiment of this utility model;

[0029] Figure 2 This is a structural diagram of the cabinet door of the energy storage cabinet provided in an embodiment of this utility model;

[0030] Figure 3 This is a cross-sectional view of the cabinet door of the energy storage cabinet provided in an embodiment of this utility model;

[0031] Figure 4 This is a structural diagram of the cabinet door cover provided in an embodiment of this utility model;

[0032] Figure 5 This is a structural diagram of the flange of the cabinet door provided in an embodiment of this utility model;

[0033] Figure 6 This is a schematic diagram of the connection between the cover and the flange provided in an embodiment of this utility model;

[0034] Figure 7 This is a structural schematic diagram of one side of the flange provided in an embodiment of this utility model;

[0035] Figure 8 This is a cross-sectional view of the flange in the thickness direction provided in an embodiment of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Energy storage cabinet; 10. Cabinet door; 11. Flange; 110. Access port; 1110. Threaded hole; 12. Cover; 121. Fireproof part; 1211. Body part; 1210. Receiving space; 12111. First wall; 12112. Second wall; 1212. Fireproof structure; 122. Connecting part; 1221. Connecting through hole; 13. Bolt; 14. First sealing ring; 15. Second sealing ring; 16. First sealing groove; 17. Second sealing groove; 20. Cabinet body. Detailed Implementation

[0038] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.

[0039] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the directions shown in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0040] Energy storage devices are the energy source for most electrical appliances, and the safety of the energy storage modules directly affects the safety of the appliances. In some related technologies, the cabinet doors of energy storage devices fail to effectively block flames in the event of an open flame, causing the energy storage modules to overheat rapidly. This results in a decrease in the charging and discharging rate of the energy storage modules at high temperatures, severely impacting functionality and even leading to module damage.

[0041] Please refer to Figure 1 , Figure 1 This is a structural diagram of an energy storage cabinet provided in an embodiment of this application. Addressing the technical problem in related technologies that cabinet doors cannot effectively block flames when facing open flame hazards, this application provides a cabinet door 10 for an energy storage device. For example, the energy storage device may further include an energy storage module (not shown) and a cabinet 20 for housing the energy storage module, with the cabinet door 10 installed on the cabinet to enclose the receiving space of the cabinet 20.

[0042] Please continue reading. Figure 2 and Figure 3 , Figure 2 This is a structural diagram of the cabinet door of the energy storage cabinet provided in the embodiments of this application. Figure 3This is a cross-sectional view of the cabinet door provided in an embodiment of this application. The cabinet door 10 includes a flange 11 and a cover 12. The flange 11 is used to connect the cabinet door 10 to the cabinet body 20. A loading / unloading opening 110 is provided through the flange 11 in the thickness direction, through which the energy storage module can be placed into the receiving space of the cabinet body 20. The cover 12 is used to cover the loading / unloading opening 110 to close the receiving space of the cabinet body 20. The cover 12 is detachably connected to one side of the flange 11 in the thickness direction. The cover 12 includes a fireproof part 121, which can block flames. The fireproof part 121 covers the loading / unloading opening 110 to prevent flames from approaching the energy storage module and causing damage to the energy storage module.

[0043] The cabinet door 10 provided in this application embodiment has a good flame-blocking effect by providing a fireproof part 121 on the cover 12. The fireproof part 121 covers the opening 110 of the flange 11, which can prevent the cabinet door 10 from causing the energy storage module to heat up rapidly, be damaged or fail to function when an open flame hazard occurs.

[0044] like Figure 3 As shown, the fireproof part 121 of the cover 12 may include a main body 1211 and a fireproof structure 1212. The main body 1211 has an accommodating space, and the fireproof structure 1212 is disposed in the accommodating space.

[0045] In some embodiments, the body portion 1211 may be made of materials that are corrosion-resistant, pressure-resistant, temperature-resistant, and have good thermal insulation properties to ensure the safety and stability of the cover 12. For example, the materials that the body portion 1211 may be made of include, but are not limited to, carbon steel, stainless steel, and composite materials (such as glass fiber reinforced plastic) to ensure the safety and effectiveness of the energy storage device in the working environment. The body portion 1211 has a receiving space designed to extend perpendicular to the thickness direction, and the fireproof structure 1212 is filled within the receiving space.

[0046] The fire-resistant structure 1212 possesses excellent high-temperature resistance, flame retardancy, water resistance, chemical stability, mechanical strength, and low thermal conductivity to ensure that the cabinet door 10 to which it is applied has sufficient fire resistance and overall safety. For example, the fire-resistant structure 1212 may include, but is not limited to, at least one of a mineral material layer (e.g., rock wool, glass wool), a polymer-based material layer (e.g., flame-retardant polyurethane foam), and a ceramic material layer (e.g., ceramic fiber). Implementers can select the appropriate material based on specific application scenarios and fire protection requirements during the design process.

[0047] In implementing some embodiments of this application, the inventors discovered that, in the planar space perpendicular to the thickness direction of the flange 11, if the orthographic projection of the accommodating space of the cabinet door 10 is too small, the area of ​​the fireproof structure will be too small, and the cabinet door 10 will not be able to effectively block flames to protect the energy storage module. If the orthographic projection of the accommodating space of the cabinet door 10 is too large, the area of ​​the fireproof structure will be too large, and since the strength of the fireproof structure is usually low, the structural strength of the cabinet door 10 will be insufficient, and the cabinet door 10 will be easily broken and damaged by impact and vibration. After long-term experiments, the inventors creatively concluded that if the ratio of the area of ​​the orthographic projection of the accommodating space to the area of ​​the orthographic projection of the access port 110 is set to 1-1.05, the flame isolation performance of the cabinet door 10 can be greatly improved while ensuring the strength of the cabinet door 10.

[0048] For example, the ratio of the area of ​​the orthographic projection of the accommodating space to the area of ​​the orthographic projection of the loading / unloading port 110 can be any value among 1.01, 1.02, 1.03, and 1.04, or any other value within the range of 1 to 1.05. Implementers can flexibly choose the appropriate value within this range depending on the specific design.

[0049] In implementing the embodiments of this application, the inventors also discovered that if the ratio of the size of the body portion 1211 to the size of the accommodating space is too small along the thickness direction of the body portion 1211, the thickness of the fireproof structure will be too small. This is not conducive to ensuring that the cabinet door 10 has good rigidity and strength in the thickness direction, and the cabinet door 10 is easily deformed or even broken due to impact and vibration. If the ratio of the size of the body portion 1211 to the size of the accommodating space is too large, the thickness of the fireproof structure will be too large. Since the strength of the fireproof structure is usually low, it is not conducive to filling more fireproof structure 1212 inside the cabinet door 10, resulting in poor fireproof performance of the cabinet door 10. After many experiments and long-term practice, the inventors creatively concluded that if the ratio of the size of the body portion 1211 to the size of the accommodating space is set to 3 to 5, the flame isolation performance of the cabinet door 10 can be greatly improved while ensuring the structural rigidity and strength of the cabinet door 10.

[0050] For example, the ratio of the size of the main body 1211 to the size of the accommodating space can be set to any value among 3.25, 3.5, 3.75, 4, 4.25, 4.5, and 4.75. Of course, it can also be any other value within the range of 3 to 5. Implementers can flexibly choose the appropriate value within this range when making specific designs.

[0051] In some embodiments of this application, along the thickness direction of the body portion 1211, the body portion 1211 has a first wall 12111 and a second wall 12112 spaced apart, and a receiving space is formed between the first wall 12111 and the second wall 12112. In this embodiment, the dimension of the body portion 1211 along the thickness direction refers to the sum of the thicknesses of the first wall 12111 and the second wall 12112. Correspondingly, the dimension of the receiving space along the thickness direction of the body portion 1211 refers to the distance between the first wall 12111 and the second wall 12112.

[0052] In implementing some embodiments of this application, the inventors also discovered that if the volume of the fireproof structure 1212 is too small, it is not conducive to the cabinet door 10 effectively blocking flames. After numerous experiments and practices, the inventors concluded that if the ratio of the volume of the fireproof structure 1212 to the volume of the accommodating space is 0.9-1, the cabinet door 10 can have excellent fireproof performance.

[0053] For example, the ratio of the volume of the fireproof structure 1212 to the volume of the accommodating space can be any value among 0.92, 0.94, 0.96, and 0.98, or any other value within the range of 0.9-1. Implementers can flexibly choose the appropriate value within this range depending on the specific design.

[0054] Please see Figures 4 to 6 , Figure 4 This is a structural diagram of the cover provided in an embodiment of this application. Figure 5 This is a structural diagram of the flange provided in an embodiment of this application. Figure 6 This is a schematic diagram illustrating the connection between the cover and the flange provided in an embodiment of this application. The cover 12 may further include a connecting portion 122, which extends along the peripheral edge of the body portion 1211 and is detachably connected to the flange 11. In the cover 12 provided in this embodiment, the body portion 1211 and the connecting portion 122 can be designed as an integral unit or as two separate components mechanically connected together. The thickness of the connecting portion 122 is less than the thickness of the body portion 1211, so that through holes can be opened along the thickness direction of the connecting portion 122 during machining, reducing drilling time and improving production efficiency. For example, the connecting part 122 has multiple connecting through holes 1221, the flange 11 has multiple threaded holes 1110 on the side facing the connecting part 122, and the cabinet door 10 also includes multiple bolts 13. The number of bolts 13 can be designed according to the connection strength and sealing level between the cabinet body 20 and the cabinet door 10. A bolt 13 passes through a connecting through hole 1221 and is screwed into a threaded hole 1110 so that the cover 12 can be connected to the cabinet body 20.

[0055] Please see Figure 7 and Figure 8, Figure 7 This is a structural schematic diagram of one side of a flange provided in an embodiment of this application. Figure 8 This is a cross-sectional view of the flange in its thickness direction provided in an embodiment of this application. In some embodiments of this application, the cabinet door 10 may further include a first sealing ring 14 and a second sealing ring 15. The first sealing ring 14 is disposed around the access port 110, and the second sealing ring 15 is located on the outer periphery of the first sealing ring 14. Both the first sealing ring 14 and the second sealing ring 15 are sandwiched between the cover body 12 and the flange 11. Compared with the related art implementations that use a single sealing ring, the embodiments of this application effectively improve the sealing performance by designing two sealing rings between the cover body 12 and the flange 11, which can prevent liquid leakage from the joint gap between the cover body 12 and the flange 11. It is understood that three or other reasonable number of sealing rings may also be provided between the cover body 12 and the flange 11 to prevent liquid leakage from the joint gap. The implementer can flexibly design according to the actual situation.

[0056] Please see Figure 5 To achieve stable installation of the sealing ring, the flange 11 may have a first sealing groove 16 and a second sealing groove 17 surrounding the pick-up and put-out port 110 on the side facing the connection part 122. The first sealing ring 14 is at least partially disposed in the first sealing groove 16, and the second sealing ring 15 is at least partially disposed in the second sealing groove 17. And / or, the connection part 122 may have a third sealing groove (not shown) and a fourth sealing groove (not shown) surrounding the pick-up and put-out port 110 on the side facing the flange 11. The first sealing ring 14 is at least partially disposed in the third sealing groove, and the second sealing ring 15 is disposed in the fourth sealing groove.

[0057] For example, the flange 11 may have a first sealing groove 16 and a second sealing groove 17 arranged around the pick-up and put-out port 110 on the side facing the connection portion 122. The connection portion 122 does not have a third sealing groove (not shown) and a fourth sealing groove (not shown) on the side facing the flange 11. The first sealing ring 14 is at least partially disposed in the first sealing groove 16, and the second sealing ring 15 is at least partially disposed in the second sealing groove 17.

[0058] In some other embodiments, the flange 11 does not have a first sealing groove 16 and a second sealing groove 17 on the side facing the connection portion 122. The connection portion 122 has a third sealing groove (not shown) and a fourth sealing groove (not shown) surrounding the take-up and take-down port 110 on the side facing the flange 11. The first sealing ring 14 is at least partially disposed in the third sealing groove, and the second sealing ring 15 is disposed in the fourth sealing groove.

[0059] In some other embodiments, the flange 11 may have a first sealing groove 16 and a second sealing groove 17 surrounding the loading port 110 on the side facing the connection portion 122. The first sealing ring 14 is at least partially disposed in the first sealing groove 16, and the second sealing ring 15 is at least partially disposed in the second sealing groove 17. The connection portion 122 may also have a third sealing groove and a fourth sealing groove surrounding the loading port 110 on the side facing the flange 11. The first sealing ring 14 is at least partially disposed in the third sealing groove, and the second sealing ring 15 is disposed in the fourth sealing groove.

[0060] By installing the first sealing ring 14 and the second sealing ring 15 in the first sealing groove 16 and the second sealing groove 17 respectively, it is convenient to position the first sealing ring 14 and the second sealing ring 15 during the assembly process, and to prevent the first sealing ring 14 and the second sealing ring 15 from falling off or shifting during subsequent use, so that the cabinet door 10 has the advantages of easy assembly and stable and reliable installation.

[0061] Please see Figure 1 This application also provides an energy storage cabinet 100, which includes a cabinet body 20, an energy storage module (not shown), and a cabinet door 10. The cabinet body 20 may include an installation space (not shown), and the energy storage module is disposed in the installation space. The cabinet door 10 is any embodiment of the cabinet door 10 in this application, and the flange 11 of the cabinet door 10 can be welded to the cabinet body 20 to close the installation space.

[0062] Specifically, the flange 11 includes a first side and a second side that are opposite to each other in its thickness direction. The first side can be connected to the cabinet 20 by welding, and the cover 12 is connected to the cabinet 20 through the flange 11. The second side is an assembly surface that mates with the cover 12. The flatness and surface roughness of the assembly surface can be set comprehensively based on the working conditions and sealing level of the cabinet door 10 to prevent liquid from seeping between the two mating surfaces of the cover 12 and the flange 11 after the cover 12 is connected to the flange 11. Compared with the related art where the cover is directly connected to the cabinet by other connection methods (such as hinge connection or bolt connection), the embodiment of this application can ensure the connection strength and sealing performance of the cabinet door 10 of the energy storage cabinet 100, avoid setting an assembly surface on the cabinet 20, and reduce the processing difficulty.

[0063] In some embodiments, there may be multiple installation spaces and multiple cabinets 20, with each cabinet door 10 enclosing an installation space.

[0064] For example, the energy storage module can be a regular shape similar to a cuboid, and the installation space can be a cuboid space. The cabinet door 10 can be designed as a rectangle, and multiple installation spaces can be distributed in a matrix. In other words, the width of multiple installation spaces in each row is the same, and the height of multiple installation spaces in each column is the same. Compared with installation spaces of other shapes (such as circles), unnecessary space waste in the energy storage cabinet 100 can be reduced, allowing more installation space to be designed within a limited volume, thereby deploying more energy storage modules, which is conducive to improving the energy storage density of the energy storage cabinet 100.

[0065] In some embodiments, the installation space may also be filled with coolant, and the energy storage module is at least partially immersed in the coolant.

[0066] For example, the coolant can be mineral oil, synthetic oil, or other insulating fluids. During the filling of the installation space with coolant, the opening on the side of the installation space closest to the cabinet door 10 can be placed facing upwards, away from gravity, to facilitate coolant injection. Alternatively, the energy storage cabinet 100 in use can have an injection port connected to the installation space along the direction of gravity, through which coolant is injected into the installation space. Because the energy storage module is immersed in the coolant, the heat generated by the energy storage module can be dissipated more quickly, reducing the risk of overheating of the energy storage battery and improving the overall efficiency and safety of the system. When the energy storage cabinet 100 is subjected to external forces such as vibration or impact, the coolant can absorb the vibration and impact, thus helping to mitigate the effect of external forces on the energy storage module, providing a buffering protection effect.

[0067] This application also provides an electrical device, which may be, but is not limited to, a data center or an electric vehicle. The electrical device includes the energy storage cabinet 100 of any embodiment of this application.

[0068] In summary, the beneficial effects of the energy storage device cabinet door, energy storage cabinet, and electrical equipment provided in this application embodiment are as follows: On the one hand, by providing a fireproof part 121 on the cover, which covers the flange access port, the cabinet door can effectively block flames. In the event of an open flame hazard, the flame can prevent the energy storage module from experiencing significant temperature rise, damage, or functional failure. On the other hand, the flange is welded to the cabinet on the side away from the cover, and the other side of the flange facing the cover serves as an assembly surface that mates with the cover. The flatness and surface roughness of the assembly surface are set according to the working conditions and sealing level, ensuring the connection strength and sealing performance of the energy storage cabinet door, avoiding the need to set an assembly surface on the cabinet, and reducing the processing difficulty.

[0069] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cabinet door for an energy storage device, characterized in that, include: A flange, wherein a through-hole is provided in the thickness direction of the flange; and, A cover body, detachably connected to one side of the flange in the thickness direction, the cover body including a fireproof part covering the access port to block flames.

2. The cabinet door according to claim 1, characterized in that, The fireproof component includes: The main body portion, wherein an accommodating space is provided; and, A fireproof structure is provided within the accommodating space.

3. The cabinet door according to claim 2, characterized in that, In a plane perpendicular to the thickness direction of the flange, the ratio of the area of ​​the orthographic projection of the receiving space to the area of ​​the orthographic projection of the loading / unloading port is 1-1.

05.

4. The cabinet door according to claim 2, characterized in that, Along the thickness direction of the body portion, the ratio of the size of the body portion to the size of the accommodating space is 3 to 5; and / or, The ratio of the volume of the fireproof structure to the volume of the accommodating space is 0.9-1.

5. The cabinet door according to claim 2, characterized in that, The fireproof structure includes at least one of a mineral material layer, a polymer-based material layer, and a ceramic material layer.

6. The cabinet door according to any one of claims 2-5, characterized in that, The cover also includes a connecting portion that extends along the peripheral edge of the body portion and is detachably connected to the flange.

7. The cabinet door according to claim 6, characterized in that, The cabinet door also includes a first sealing ring and a second sealing ring. The first sealing ring is arranged around the opening, and the second sealing ring is located on the outer periphery of the first sealing ring. Both the first sealing ring and the second sealing ring are sandwiched between the cover and the flange.

8. The cabinet door according to claim 7, characterized in that, The flange has a first sealing groove and a second sealing groove surrounding the access port on the side facing the connection portion. The first sealing ring is at least partially disposed in the first sealing groove, and the second sealing ring is at least partially disposed in the second sealing groove; and / or The connecting part has a third sealing groove and a fourth sealing groove on the side facing the flange, which surround the pick-up and drop-out port. The first sealing ring is at least partially disposed in the third sealing groove, and the second sealing ring is disposed in the fourth sealing groove.

9. The cabinet door according to claim 6, characterized in that, The cabinet door also includes multiple bolts, the flange has multiple threaded holes on the side facing the connection part, the connection part has multiple connecting through holes, and one of the bolts passes through one of the connecting through holes and is screwed into the threaded hole.

10. An energy storage cabinet, characterized in that, include: Cabinet, including installation space; An energy storage module is installed within the installation space; as well as, The cabinet door as described in any one of claims 1-9, wherein the flange of the cabinet door is welded to the cabinet body, and the cabinet door encloses the installation space.

11. The energy storage cabinet according to claim 10, characterized in that, There are multiple installation spaces and multiple cabinets, with each cabinet door enclosing one installation space.

12. The energy storage cabinet according to claim 10, characterized in that, The installation space is filled with coolant, and the energy storage module is at least partially submerged in the coolant.

13. An electrical appliance, characterized in that, Includes the energy storage cabinet as described in any one of claims 10-12.

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