Cabinet structure and energy storage device

By installing a frame on the cabinet door that fits closely to the sealing surface, and utilizing the expansion of heat-insulating foam paint at high temperatures to seal the gaps, the problem of flame leakage inside the cabinet structure is solved, achieving better sealing protection and structural stability.

CN223829554UActive Publication Date: 2026-01-23SUNGROW POWER SUPPLY CO LTD
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Patent Information

Application Number
CN202423024137.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2026-01-23
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

When a component inside the cabinet malfunctions and catches fire, flames can easily leak out from the gap between the cabinet door and the main cabinet entrance, causing the fire to spread, increasing the difficulty of fire rescue, and reducing the protective performance of the cabinet structure.

Method used

By setting a frame on the cabinet door so that it fits closely to the sealing surface when the main body of the cabinet is closed, the heat-insulating foam paint expands at high temperature to seal the gaps. Combined with the sealing components and the flange structure, the sealing performance and protection performance are enhanced.

Benefits of technology

It effectively prevents flames from leaking through gaps, improves the sealing and protection effect of the cabinet structure, reduces flame spread, enhances the practicality and reliability of the cabinet structure, and reduces the burden of fire rescue.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223829554U_ABST
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Abstract

The embodiment of the utility model discloses a cabinet body structure and an energy storage device, and relates to the technical field of new energy equipment, the cabinet body structure comprises a cabinet main body and a cabinet door, the cabinet main body is internally provided with an accommodating cavity, the cabinet main body is provided with an access port communicated with the accommodating cavity, and the cabinet main body forms a sealing surface at the inner wall of the access port; the cabinet door comprises an outer cover plate and a frame body, the outer cover plate is movably connected to the cabinet main body so as to open or cover the entrance, the frame body is arranged on the plate surface, facing the cabinet main body, of the outer cover plate, and the frame body penetrates through the entrance and is close to the sealing surface when the entrance is covered by the outer cover plate. According to the technical scheme provided by the embodiment of the invention, the sealing performance and the protection performance of the cabinet body structure are enhanced, and the practicability and the reliability of the cabinet body structure are improved.
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Description

Technical Field

[0001] The embodiments in this application relate to the field of new energy equipment technology, and in particular to a cabinet structure and energy storage device. Background Technology

[0002] In related technologies, energy storage devices and other new energy equipment can utilize cabinet structures to store various components, ensuring stable operation of the equipment. Cabinet structures typically have movable doors installed on the main body, allowing the cabinet to be opened or closed for easy access, maintenance, and stable operation of the equipment inside.

[0003] However, when a component inside the cabinet structure malfunctions and catches fire, the flames can easily leak out through the gap between the cabinet door and the cabinet body entrance to the outside of the cabinet body. This can easily cause the fire to spread to the outside of the cabinet body, increasing the difficulty of fire rescue and reducing the protective performance of the cabinet structure. Utility Model Content

[0004] This application provides several embodiments of a cabinet structure and an energy storage device, aiming to enhance the sealing and protection performance of the cabinet structure and improve its practicality and reliability.

[0005] One embodiment of this application proposes a cabinet structure including a cabinet body and a cabinet door. The cabinet body has a receiving cavity and an entrance / exit communicating with the receiving cavity. The inner wall of the cabinet body at the entrance / exit forms a sealing surface. The cabinet door includes an outer cover plate and a frame. The outer cover plate is movably connected to the cabinet body to open or close the entrance / exit. The frame is disposed on the surface of the outer cover plate facing the cabinet body. When the outer cover plate closes the entrance / exit, the frame passes through the entrance / exit and is close to the sealing surface.

[0006] In one embodiment, the outer periphery of the frame is coated with heat-insulating foam paint, and / or the sealing surface is coated with heat-insulating foam paint.

[0007] In one embodiment, the cabinet structure further includes a sealing element disposed between the cabinet body and the outer cover plate, the sealing element being disposed around the entrance / exit, and the outer cover plate abutting against the sealing element when closing the entrance / exit.

[0008] In one embodiment, the sealing element includes an elastic body and a fixing buckle, the fixing buckle being snapped onto the cabinet body, the elastic body being connected to the fixing buckle and abutting against the outer cover plate.

[0009] In one embodiment, the cabinet body is provided with a flange structure around the entrance / exit, the fixing buckle is engaged with the flange structure, and the side of the flange structure facing the frame is the sealing surface.

[0010] In one embodiment, the frame includes a connecting portion and a protective portion. The connecting portion is connected to the outer cover plate; the protective portion is connected to the connecting portion, and the outer periphery of the protective portion is inclined relative to the surface of the outer cover plate. The distance between the protective portion and the sealing surface is greater than the distance between the connecting portion and the sealing surface.

[0011] In one embodiment, the cabinet body is provided with a hinge, which connects the cabinet body and the outer cover plate so that the cabinet door can rotate relative to the cabinet body.

[0012] In one embodiment, the cabinet body is provided with a door lock structure, which is located on the outer wall of the cabinet body and is used to lock the outer cover plate.

[0013] In one embodiment, the outer cover plate is filled with heat-insulating material.

[0014] An embodiment of this application also proposes an energy storage device, which includes an energy storage battery and a cabinet structure, wherein the cabinet structure is the cabinet structure described above, and the energy storage battery is disposed within the cabinet structure.

[0015] In the various embodiments provided in this application, a frame is provided on the side of the cabinet door facing the entrance / exit. When the cabinet door covers the entrance / exit of the cabinet body, the frame passes through the entrance / exit and makes the frame fit against the sealing surface at the entrance / exit. This achieves a sealed fit between the cabinet door and the cabinet body, which helps to better reduce the gap between the cabinet door and the sealing surface. This effectively prevents the flame in the accommodating cavity from leaking to the outside of the cabinet body through the frame and the sealing surface, enabling the cabinet structure to achieve better sealing and protection, and improving the practicality and reliability of the cabinet structure. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 A partial cross-sectional view of an embodiment of the cabinet structure provided in this application;

[0018] Figure 2 for Figure 1 A partially enlarged view of an embodiment at point A in the middle;

[0019] Figure 3 for Figure 1A partially enlarged view of another embodiment at point A;

[0020] Figure 4 for Figure 1 A partial enlarged view of another embodiment at point A in the middle;

[0021] Figure 5 for Figure 1 A partial enlarged view of an embodiment at point B;

[0022] Figure 6 for Figure 1 A partially enlarged view of another embodiment at point B;

[0023] Figure 7 A rear view of an embodiment of the cabinet door of the cabinet structure provided in this application.

[0024] Explanation of icon numbers:

[0025] 100. Cabinet structure; 10. Cabinet body; 11. Sealing element; 111. Elastic body; 113. Fixing buckle; 13. Flanged structure; 131. Sealing surface; 15. Hinge; 17. Door lock structure; 30. Cabinet door; 31. Outer cover plate; 33. Frame; 331. Connecting part; 333. Protective part; 50. Heat-insulating foam paint. Detailed Implementation

[0026] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in multiple embodiments of this application, the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are 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 with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] In related technologies, cabinet structures typically feature movable doors on the main body of the cabinet. These doors allow for the opening and closing of the cabinet's entrance and exit, ensuring the maintenance and stable operation of the energy storage device. However, in the event of a fire caused by a malfunction of the energy storage battery within the cabinet structure, flames can easily leak out through the gap between the door and the entrance / exit of the cabinet body, potentially spreading the fire to the outside of the cabinet body. This increases the difficulty of firefighting and rescue efforts and reduces the protective performance of the cabinet structure. To address these issues, this application proposes a cabinet structure 100.

[0030] Please see Figures 1 to 7 In one embodiment of this application, the cabinet structure 100 includes a cabinet body 10 and a cabinet door 30. The cabinet body 10 has a receiving cavity and an entrance / exit communicating with the receiving cavity. The cabinet body 10 forms a sealing surface 131 on the inner wall of the entrance / exit. The cabinet door 30 includes an outer cover plate 31 and a frame 33. The outer cover plate 31 is movably connected to the cabinet body 10 to open or close the entrance / exit. The frame 33 is disposed on the surface of the outer cover plate 31 facing the cabinet body 10. When the outer cover plate 31 closes the entrance / exit, the frame 33 passes through the entrance / exit and is close to the sealing surface 131.

[0031] Understandably, the cabinet structure 100 can be a container or cargo box structure, allowing energy storage devices and other new energy equipment to be arranged within the cabinet structure 100 in a specific layout, including energy storage batteries, control devices, and detection devices. This provides a certain level of protection for the energy storage devices and ensures their stable operation. Furthermore, by moving the cabinet door 30 on the main body 10 of the cabinet structure 100, the entrance and exit of the main body 10 can be closed to maintain a sealed environment within the storage cavity, preventing external influences on the energy storage batteries and other equipment. Conversely, the entrance and exit can be opened by moving the cabinet door 30, allowing users to enter the storage cavity for maintenance or repair, ensuring the energy storage device maintains stable and reliable operation. The cabinet door 30 can be larger than the entrance / exit size. The cabinet door 30 can be rotated around one side of the cabinet body 10 to open or close the entrance / exit. Alternatively, the cabinet door 30 can be pulled outward a certain distance and then slid relative to the cabinet body 10 to open or close the cabinet body 10. This application does not limit the connection method between the cabinet door 30 and the cabinet body 10, as long as the cabinet door 30 can be stably opened and closed on the cabinet body 10.

[0032] In this application, the cabinet door 30 can be closed by covering the entrance and exit with an outer cover plate 31 that is larger than the entrance and exit size. By setting a frame 33 on the side of the outer cover plate 31 facing the cabinet body 10, the frame 33 can be a protruding structure corresponding to the shape of the entrance and exit. When the outer cover plate 31 covers the entrance and exit, the frame 33 is inserted at the entrance and exit, which can make the cabinet door 30 better cooperate to close the entrance and exit. Furthermore, the size of the frame 33 can be set to correspond to the size of the entrance and exit, so that the outer periphery of the frame 33 can be relatively close to the sealing surface 131 of the cabinet body 10, reducing the gap between the cabinet door 30 and the entrance and exit, and achieving better protective performance of the cabinet structure 100. Therefore, by utilizing the relative proximity of the frame 33 and the sealing surface 131, the gap between the cabinet door 30 and the cabinet body 10 at the entrance and exit can be reduced, thereby achieving a better sealing effect of the cabinet door 30 on the entrance and exit. This will prevent flames from passing through the gap between the cabinet door 30 and the entrance and exit when the components housed in the accommodating cavity malfunction and catch fire, thus preventing the spread of fire and achieving a better protective effect for the cabinet structure 100.

[0033] The cabinet body 10 can be constructed with a thicker structure at the entrance / exit location, or the cabinet body 10 can be bent outwards at the entrance / exit to form a flange, so that the inner wall of the cabinet body 10 at the entrance / exit can have a larger area, that is, the sealing surface 131 can have a larger area. This is beneficial to increase the relative contact area between the frame 33 and the sealing surface 131, thereby better preventing flames from passing through and further improving the protective effect and structural reliability of the cabinet structure 100.

[0034] In one embodiment of this application, by providing a frame 33 on the side of the cabinet door 30 facing the entrance / exit, when the cabinet door 30 covers the entrance / exit of the cabinet body 10, the frame 33 passes through the entrance / exit and is relatively fitted with the sealing surface at the entrance / exit, thus achieving a sealed fit between the cabinet door 30 and the cabinet body 10. This helps to better reduce the gap between the cabinet door 10 and the sealing surface 131, thereby effectively preventing the flame in the accommodating cavity from leaking to the outside of the cabinet body 10 through the frame 33 and the sealing surface 131. This allows the cabinet structure 100 to achieve a better sealing and protection function, improving the practicality and reliability of the cabinet structure 100.

[0035] See Figures 2 to 6 In one embodiment of this application, the outer periphery of the frame 33 is coated with heat-insulating foam paint 50, and / or the sealing surface is coated with heat-insulating foam paint 50.

[0036] In this embodiment, the heat-insulating foam paint 50 can be polyisocyanurate foam paint, polyethylene foam paint, silicate foam paint, glass wool foam paint, or intumescent fireproof and heat-insulating paint, etc., so that the heat-insulating foam paint 50 can expand and generate heat-insulating foam when subjected to a certain amount of heat. By attaching the heat-insulating foam paint 50 to the outer periphery and / or sealing surface of the frame, it is beneficial to utilize the properties of the heat-insulating foam paint 50 to seal the gap between the cabinet door 30 and the cabinet body 10 in the event of a fire hazard inside the cabinet structure 100, thereby achieving better heat insulation and fireproof performance.

[0037] In some embodiments, the cabinet structure 100 may be sprayed or coated with heat-insulating foam paint 50 on the outer periphery of the frame 33 of the cabinet door 30. When a flame generated by a runaway energy storage battery in the accommodating cavity spreads to the space between the frame 33 and the sealing surface 131, the heat-insulating foam paint 50 can be heated and expanded toward the sealing surface 131 to seal the gap between the frame 33 and the sealing surface 131. Alternatively, in other embodiments, the cabinet structure 100 may be sprayed or coated with heat-insulating foam paint 50 on the sealing surface 131, so that the heat-insulating foam in the accommodating cavity... When the flames generated by the uncontrolled runaway energy storage battery spread to the space between the frame 33 and the sealing surface 131, the heat-insulating foam paint 50 can be heated and expand towards the frame 33 to create heat-insulating foam that seals the gap between the frame 33 and the sealing surface 131. Alternatively, the cabinet structure 100 can be coated with heat-insulating foam paint 50 on both the outer periphery of the frame 33 and the sealing surface 131, so that the heat-insulating foam paint 50 on both the frame 33 and the sealing surface 131 can be heated simultaneously to create heat-insulating foam that seals the gap between the cabinet body 10 and the frame 33. The gap between the frame 33 and the sealing surface 131 can be set to be smaller than the thickness of the expanding heat-insulating foam created by the heat-insulating foam paint 50, so that the expanding heat-insulating foam can stably seal the gap between the frame 33 and the entrance / exit, ensuring the stable sealing and protection effect of the cabinet structure 100 and effectively preventing flames from escaping from the gap between the cabinet body 10 and the cabinet door 30.

[0038] Therefore, by using the heat-insulating foam generated by the thermal expansion of the heat-insulating foam paint 50 to seal the gap between the cabinet door 30 and the cabinet body 10, it is possible to better prevent flames from overflowing from the gap between the cabinet door 30 and the cabinet body 10, which could potentially cause a fire on the outside of the cabinet structure 100, thus reducing the burden on fire rescue. At the same time, the heat-insulating foam generated by the expansion of the heat-insulating foam paint 50 can provide good heat insulation performance, which helps to better reduce the heat transfer from the cavity to the cabinet door 30, and better prevent the moving parts on the cabinet door 30 from being damaged by heat. This allows the cabinet door 30 to maintain stable opening and closing in the event of a fire in the cavity, facilitating the control of the fire in the cavity.

[0039] Furthermore, a detection device can be installed inside the cabinet structure 100. This device can detect fires and promptly shut down the ventilation system of the cabinet structure 100. The expansion of the heat-insulating foam paint 50 to seal the gap between the cabinet door 30 and the cabinet body 10 also helps reduce ventilation between the cavity and the external environment of the cabinet body 10, isolates oxygen in the cavity, and provides a certain flame-retardant effect. This achieves a better sealing and protection effect for the cabinet structure 100, further improving the practicality and reliability of the cabinet structure 100.

[0040] See Figures 2 to 6In one embodiment of this application, the cabinet structure 100 further includes a sealing member 11 disposed between the cabinet body 10 and the outer cover plate 31. The sealing member 11 is disposed around the entrance and exit, and the outer cover plate 31 abuts against the sealing member 11 when it closes the entrance and exit.

[0041] In this embodiment, a sealing element 11 can be installed on the outer wall of the cabinet body 10. The sealing element 11 can be a silicone sealing strip, a rubber sealing strip, or an elastic sealing filler material, etc. By using the sealing element 11 to surround the entrance and exit, when the cabinet door 30 closes the entrance and exit, the outer cover plate 31 abuts against the sealing element 11, so that the sealing element 11 seals the gap between the outer cover plate 31 and the outer wall of the cabinet body 10, thereby achieving the sealing and protection effect of the cabinet door 30 during the daily operation of the energy storage device, and better preventing the equipment set in the accommodating cavity from being affected by the external environment.

[0042] Because the seal 11 is prone to burning and melting under high temperatures, flames can easily melt the seal 11 between the cabinet door 30 and the frame 33, causing it to overflow between the cabinet door 30 and the cabinet body 10. Therefore, by positioning the frame 33 of the cabinet door 30 close to the sealing surface at the entrance / exit, flames can be effectively prevented from flowing through the gap between the cabinet door 30 and the entrance / exit to the seal 11, thus preventing heat damage to the seal 11. Furthermore, by attaching heat-insulating foam paint 50 to the outer periphery of the frame 33 of the cabinet door 30 and / or to the sealing surface 131, the heat-insulating foam generated by the heat-insulating foam paint 50 can further seal the flame within the accommodating cavity, better preventing the seal 11 between the cabinet door 30 and the outer wall of the cabinet body 10 from burning. Simultaneously, the heat insulation effect of the foam also helps to prevent the seal 11 from being affected by the high temperatures within the accommodating cavity, ensuring a stable seal between the cabinet body 10 and the cabinet door 30, further improving the structural stability and reliability of the cabinet structure 100.

[0043] See Figures 2 to 6 In one embodiment of this application, the sealing element 11 includes an elastic body 111 and a fixing buckle 113. The fixing buckle 113 is snapped into the cabinet body 10, and the elastic body 111 is connected to the fixing buckle 113 and abuts against the outer cover plate 31.

[0044] In this embodiment, the sealing element 11 can be a self-clamping sealing strip formed by the combination of the fixing buckle 113 and the elastic body 111. At this time, a limiting protrusion or a limiting groove that cooperates with the fixing buckle 113 can be provided on the cabinet body 10 so that the sealing element 11 can be engaged with the cabinet body 10 by the fixing buckle 113. This achieves a more convenient and reliable assembly method for the sealing element 11 on the cabinet body 10, which is conducive to better disassembly and replacement of the sealing element 11 and ensures the sealing performance of the cabinet structure 100. Preferably, the cabinet body 10 can be provided with a flanged structure 13 around the entrance / exit. In this case, the flanged structure 13 can form a sealing surface 131 relative to the side wall of the frame 33, so that the frame 33 and the flanged structure 13 are relatively close. By setting the flanged structure 13 to engage with the fixing buckle 113 relative to the outer wall of the cabinet body 10, the sealing element 11 can be set at a certain distance from the wall of the cabinet body 10, so as to better isolate the sealing element 11 from the heat of the cabinet body 10, and further improve the structural stability and reliability of the cabinet structure 100. The elastic body 111 can be heat-resistant silicone or heat-resistant rubber, so that the sealing element 11 can use the outer cover plate 31 to press against the elastic body 111, so that the elastic body 111 undergoes a certain elastic deformation to stably seal the gap between the cabinet body 10 and the outer cover plate 31, so as to achieve a more reliable sealing effect of the cabinet structure 100.

[0045] See Figure 3 and Figure 5 In one embodiment of this application, the frame 33 includes a connecting part 331 and a protective part 333. The connecting part 331 is connected to the outer cover plate 31; the protective part 333 is connected to the connecting part 331. The outer periphery of the protective part 333 is inclined relative to the plate surface of the outer cover plate 31, and the distance between the protective part 333 and the sealing surface is greater than the distance between the connecting part 331 and the sealing surface.

[0046] In this embodiment, the frame 33 can adopt a sheet metal structure that is bent on the side facing the accommodating cavity, so that the part of the frame 33 near the accommodating cavity can form a protective part 333 with the outer wall inclined to the outer cover plate 31. The distance between the outer wall of the protective part 333 and the edge of the entrance / exit can gradually increase along the direction towards the outer cover plate 31, and the distance between the protective part 333 and the sealing surface is greater than the distance between the connecting part 331 and the sealing surface 131. This allows the frame 33 to pass through the entrance / exit more smoothly, preventing the frame 33 from getting stuck when passing through the entrance / exit. At the same time, it allows the frame 33 to better fit the sealing surface 131 with the connecting part 331, ensuring a tight fit between the frame 33 and the sealing surface 131, and further improving the practicality and structural reliability of the cabinet structure 100.

[0047] At this time, when the heat-insulating foam paint 50 is provided on the frame 33 and / or the sealing surface 131, the maximum distance between the outer wall of the protective part 333 and the sealing surface 131 can be less than the thickness of the heat-insulating foam generated by the thermal expansion of the heat-insulating foam paint 50, ensuring the stable sealing of the heat-insulating foam. This allows the heat-insulating foam paint 50 to have a more stable expansion space, ensuring the stable sealing and heat insulation of the gap between the frame 33 and the sealing surface 131, and ensuring the protective performance of the cabinet structure 100. Preferably, the heat-insulating foam paint 50 is attached to the outer periphery of the frame 33, that is, to the outer periphery of the connecting part 331 and the protective part 333. The inclined arrangement of the outer periphery of the protective part 333 allows the flame in the accommodating cavity to act better on the outer periphery of the protective part 333, ensuring that the heat-insulating foam paint 50 can expand more stably under heat, ensuring a more stable sealing and protective effect of the cabinet structure 100, and further improving the practicality and reliability of the cabinet structure 100.

[0048] See Figures 3 to 6 In one embodiment of this application, by bending outwards at the periphery of the entrance / exit to form a flange structure 13, the cabinet body 10 can form a door frame at the entrance / exit using the flange structure 13. When the frame 33 passes through the entrance / exit, the flange structure 13 is positioned to surround the frame 33. A larger sealing surface 131 can be formed on the side of the flange structure 13 facing the frame 33, ensuring a tight seal between the frame 33 and the sealing surface 131, thus better preventing the spread of flame within the accommodating cavity. Simultaneously, it also helps to better utilize the cooperation between the flange structure 13 and the frame 33 to reduce moisture from outside the cabinet body 10 entering the accommodating cavity through the gap between the cabinet door 30 and the cabinet body 10, achieving a better sealing and waterproofing effect for the cabinet structure 100.

[0049] Furthermore, by using the flange structure 13 to be positioned opposite the frame 33, the heat-insulating foam paint 50 can be attached to the outer periphery of the flange structure 13 and / or the frame 33. This allows the heat-insulating foam paint 50 to better seal between the flange structure 13 and the frame 33 when it expands due to heat, thus better preventing the flame in the accommodating cavity from overflowing between the outer cover plate 31 and the outer wall of the frame 33. This achieves a more stable and reliable sealing and protection effect for the cabinet structure 100, further improving the practicality and reliability of the cabinet structure 100.

[0050] Further, see Figure 3 and Figure 5 In one embodiment of this application, the sealing surface is inclined, and the distance between the sealing surface and the frame 33 gradually increases in the direction toward the outer cover plate 31.

[0051] In this embodiment, the flange structure 13 can be bent into an inclined plate shape at the edge of the entrance / exit, so that the sealing surface is inclined relative to the inner wall of the cabinet body 10. This allows the distance between the sealing surface and the frame 33 to gradually increase towards the outer cover plate 31. At this time, the maximum distance between the sealing surface and the frame 33 is less than the thickness of the heat insulation foam generated by the thermal expansion of the heat insulation foam paint 50. This allows the heat insulation foam to have a certain space to expand and seal the gap between the flange structure 13 and the frame 33, effectively preventing the flame from overflowing between the flange structure 13 and the frame 33, and further improving the practicality and reliability of the cabinet structure 100.

[0052] Furthermore, by tilting the flange structure 13, it is also beneficial to make the heat-insulating foam paint 50 more stably contact the flame when it is attached to the sealing surface, ensuring that the heat-insulating foam paint 50 can expand more stably under heat, better ensuring the sealing and protection performance inside the cabinet structure 100, and further improving the practicality and reliability of the cabinet structure 100.

[0053] See Figure 3 and Figure 4 In one embodiment of this application, the cabinet body 10 is provided with a hinge 15, which connects the cabinet body 10 and the outer cover plate 31 so that the cabinet door 30 can rotate relative to the cabinet body 10.

[0054] In this embodiment, the cabinet body 10 can be connected to the outer cover plate 31 by hinges 15, such as hinged hinges, hinged rods, or elastic hinge structures. The hinges 15 can be attached to the outer wall of the cabinet body 10 and to one side of the outer cover plate 31, allowing the cabinet door 30 to rotate relative to the cabinet body 10 around the rotation center axis of the hinges 15 via the outer cover plate 31, thus achieving stable opening and closing control of the cabinet door 30 for the entrance and exit. The hinges 15 and the sealing surface 131 can be spaced a certain distance apart on the outer wall of the cabinet body 10. The close proximity of the sealing surface 131 to the frame 33 of the cabinet door 30 prevents flames from passing through the gap between the cabinet door 30 and the sealing surface 131, further reducing the lateral escape of flames to the hinges 15, preventing heat damage to the hinges 15, and ensuring stable opening and closing of the cabinet door 30 on the cabinet body 10.

[0055] Insulating foam paint 50 can be provided on the outer periphery of the frame 33 and / or the sealing surface 131 of the cabinet door 30. In the event of a fire caused by equipment failure in the accommodating cavity, the insulating foam paint 50 expands and seals the gap between the frame 33 and the sealing surface 131, thereby better preventing flames from overflowing between the outer cover plate 31 and the frame 33. This effectively avoids the impact of high-temperature flames on the hinge 15, allowing the cabinet door 30 to rotate and open stably on the cabinet body 10 before and after a fire. At the same time, the insulating effect of the expanded insulating foam can better prevent the heat in the accommodating cavity from acting on the hinge 15, better preventing the hinge 15 from deforming or melting due to heat, effectively ensuring the overall structural stability of the cabinet structure 100, and further improving the practicality and reliability of the cabinet structure 100.

[0056] See Figure 5 and Figure 6 In one embodiment of this application, the cabinet body 10 is provided with a door lock structure 17, which is located on the outer wall of the cabinet body 10 and is used to lock the outer cover plate 31.

[0057] In this embodiment, a door lock structure 17 can be installed on the outer wall of the cabinet body 10. When the outer cover plate 31 closes the entrance / exit, the door lock structure 17 can be used to lock the outer cover plate 31 and the cabinet body 10 together, effectively preventing the cabinet door 30 from being accidentally opened on the cabinet body 10, ensuring the stable operation of the energy storage device, and ensuring the sealing performance of the cabinet structure 100. The door lock structure 17 can be set at a certain distance from the sealing surface 131 on the outer wall of the cabinet body 10. The cabinet body 10 uses the sealing surface 131 to be close to the frame 33 of the cabinet door 30 to prevent flames from passing through the gap between the cabinet door 30 and the sealing surface 131, which can further reduce the lateral escape of flames to the door lock structure 17, prevent the door lock structure 17 from being damaged by heat, and ensure the stable opening and closing of the cabinet door 30 on the cabinet body 10.

[0058] Insulating foam paint 50 can be provided on the outer periphery of the frame 33 and / or the sealing surface 131 of the cabinet door 30. In the event of a fire caused by equipment failure in the accommodating cavity, the insulating foam paint 50 expands and seals the gap between the frame 33 and the sealing surface 131. This better prevents flames from overflowing between the outer cover plate 31 and the outer wall of the cabinet body 10, effectively preventing high-temperature flames from acting on the door lock structure 17, causing the door lock structure 17 to melt or deform the lock cylinder inside the door lock structure 17. This prevents the cabinet door 30 from locking onto the cabinet body 10, which could potentially affect the fire extinguishing of the cabinet structure 100. This ensures that the cabinet door 30 can stably rotate and open and close the entrance and exit on the cabinet body 10 before and after a fire. At the same time, the insulating effect of the expanded insulating foam can better prevent the heat in the accommodating cavity from acting on the door lock structure 17, better preventing the door lock structure 17 from being deformed or melted by heat. This effectively ensures the overall structural stability of the cabinet structure 100, further improving the practicality and reliability of the cabinet structure 100.

[0059] In one embodiment of this application, the outer cover plate 31 is filled with heat-insulating material.

[0060] In this embodiment, the outer cover plate 31 can be filled with thermal insulation materials such as aluminum silicate wool, glass wool, or rock wool to improve the temperature resistance and thermal insulation performance of the outer cover plate 31. This allows the outer cover plate 31 to better withstand the effects of high-temperature flames within the accommodating cavity, better prevents deformation of the outer cover plate 31 due to heat, and utilizes the thermal insulation effect of the thermal insulation material to better isolate heat from the cabinet door 30, preventing parts of the cabinet door 30 from being affected by high temperatures. This ensures the overall structural stability of the cabinet door 30 and better prevents parts of the cabinet door 30 from melting and becoming stuck at the entrance / exit after a fire occurs within the accommodating cavity. It also ensures the stable opening and closing movement of the cabinet door 30 on the cabinet body 10, further improving the overall structural stability and reliability of the cabinet structure 100.

[0061] This application also proposes an energy storage device, which includes an energy storage battery and a cabinet structure 100. The specific structure of the cabinet structure 100 is as described in the above embodiments. Since this energy storage device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0062] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A cabinet structure, characterized in that, include: The cabinet body has a receiving cavity inside, and the cabinet body has an entrance and exit that connect to the receiving cavity. The inner wall of the cabinet body at the entrance and exit forms a sealing surface. The cabinet door includes an outer cover plate and a frame. The outer cover plate is movably connected to the cabinet body to open or close the entrance / exit. The frame is disposed on the outer cover plate facing the cabinet body. When the outer cover plate closes the entrance / exit, the frame passes through the entrance / exit and is close to the sealing surface.

2. The cabinet structure as described in claim 1, characterized in that, The outer periphery of the frame is coated with heat-insulating foam paint, and / or the sealing surface is coated with heat-insulating foam paint.

3. The cabinet structure as described in claim 1, characterized in that, The cabinet structure also includes a sealing element disposed between the cabinet body and the outer cover plate. The sealing element is disposed around the entrance / exit, and the outer cover plate abuts against the sealing element when it closes the entrance / exit.

4. The cabinet structure as described in claim 3, characterized in that, The sealing element includes an elastic body and a fixing buckle. The fixing buckle is snapped into the cabinet body, and the elastic body is connected to the fixing buckle and abuts against the outer cover plate.

5. The cabinet structure as described in claim 4, characterized in that, The cabinet body has a flanged structure around the entrance / exit, and the fixing buckle is engaged with the flanged structure. The side of the flanged structure facing the frame is the sealing surface.

6. The cabinet structure as described in claim 1, characterized in that, The frame includes: The connecting part is connected to the outer cover plate; and A protective part is connected to the connecting part. The outer periphery of the protective part is inclined relative to the surface of the outer cover plate. The distance between the protective part and the sealing surface is greater than the distance between the connecting part and the sealing surface.

7. The cabinet structure as described in any one of claims 1 to 6, characterized in that, The cabinet body is provided with a hinge, which connects the cabinet body and the outer cover plate so that the cabinet door can rotate relative to the cabinet body.

8. The cabinet structure as described in any one of claims 1 to 6, characterized in that, The cabinet body is provided with a door lock structure, which is located on the outer wall of the cabinet body and is used to lock the outer cover plate.

9. The cabinet structure as described in any one of claims 1 to 6, characterized in that, The outer cover plate is filled with heat insulation material.

10. An energy storage device, characterized in that, The energy storage device includes an energy storage battery and a cabinet structure, wherein the cabinet structure is the cabinet structure according to any one of claims 1 to 9, and the energy storage battery is disposed within the cabinet structure.