Cabinet body, energy storage device and energy storage equipment

Abstract

The utility model discloses a cabinet body, an energy storage device and energy storage equipment, and the cabinet body comprises a housing, a fireproof thermal insulation layer and an inner skin. The housing encloses the accommodating cavity; the fireproof heat-insulating layer is accommodated in the accommodating cavity, and a spacing distance is formed between at least part of the fireproof heat-insulating layer and the shell to form a heat-insulating cavity; and the inner skin is connected to one side of the fireproof heat-insulating layer back to the shell. A fireproof layer is formed by using the heat insulation cavity to prevent flame from directly firing the shell through the inner skin, so that the cabinet body provided by the utility model has relatively high fireproof performance; a heat insulation cavity is formed between the fireproof heat insulation layer and the shell, so that the excessive design of the fireproof heat insulation layer and the inner skin is omitted, and the fireproof performance can be improved; moreover, the shell, the fireproof heat insulation layer and the inner skin can be designed separately, and different materials are mutually independent and detachable, so that different matching of the shell and different structures in different fireproof scenes can be realized, and the designability of the cabinet body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage and storage, and in particular to a cabinet, an energy storage device and energy storage equipment. Background Art

[0002] Most of the existing cabinets are externally fireproof and have poor fireproof performance. With the particularity of the items stored in the cabinet, higher requirements are placed on the fireproof performance of the cabinet. For example, in a cabinet used to store batteries, the batteries will naturally cause fire inside the cabinet. How to provide a high-performance fireproof cabinet has become the key. Utility Model Content

[0003] The utility model aims to provide a cabinet, an energy storage device and an energy storage equipment to solve the problem of poor fireproof performance of the existing cabinet.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In the first aspect, the utility model provides a cabinet body, comprising an outer shell, a fireproof and heat-insulating layer and an inner skin; the outer shell encloses a receiving cavity; the fireproof and heat-insulating layer is received in the receiving cavity, and at least part of the fireproof and heat-insulating layer is spaced apart from the outer shell to form an insulation cavity; the inner skin is connected to the side of the fireproof and heat-insulating layer facing away from the outer shell.

[0006] In one embodiment, the cabinet body further includes a support member, the support member is accommodated in the accommodation cavity, the support member is connected to the outer shell, the fireproof and heat-insulating layer is connected to the support member, and the fireproof and heat-insulating layer is connected to a side of the support member facing away from the shell to form the insulation cavity.

[0007] In one embodiment, the support member is a reinforcing rib, and there are multiple reinforcing ribs, and multiple reinforcing ribs are spliced ​​together to form a frame structure.

[0008] In one embodiment, the cabinet body further includes an outer skin, which is connected to a side of the fireproof and heat-insulating layer facing away from the inner skin, and at least a portion of the outer skin is spaced apart from the outer shell to form the heat-insulating cavity.

[0009] In one embodiment, the cabinet body further includes a fixing part, which is connected to a side of the inner skin facing away from the fireproof and heat-insulating layer, and is used to reinforce the fireproof and heat-insulating layer and the inner skin.

[0010] In one embodiment, the fixing member is a fixed angle steel, and the fixed angle steel is connected and fixed to the inner skin.

[0011] In one embodiment, the cabinet body includes a cabinet body and a cabinet door, the cabinet door and the cabinet body are connected in an opening and closing manner, the cabinet body includes a shell plate, the cabinet body includes a door plate, the shell plate and the door plate together constitute the outer shell, and the cabinet body and the cabinet door are both provided with the fireproof and heat-insulating layer and the inner skin.

[0012] In one embodiment, the annular sealing strip is further provided at the opening of the cabinet body, the sealing strip is located between the cabinet body and the cabinet door, and the sealing strip is used for waterproofing and / or fireproofing.

[0013] In one embodiment, the sealing strip includes an annular first sealing strip and an annular second sealing strip, the first sealing strip and the second sealing strip are arranged on opposite sides in the thickness direction of the cabinet door, and the second sealing strip is arranged around the outer circumference of the first sealing strip.

[0014] In one embodiment, a cavity is formed between the cabinet body and the cabinet door, and the cabinet body further includes an expansion strip, which is accommodated in the cavity.

[0015] In one embodiment, the expansion strip includes a first expansion strip and a second expansion strip, the first expansion strip and the second expansion strip are arranged opposite to each other, the first expansion strip is connected to the cabinet body, and the second expansion strip is connected to the cabinet door.

[0016] In one embodiment, the inner skin is made of steel or fiberglass, and the fireproof and heat-insulating layer is aerogel.

[0017] In a second aspect, the utility model further provides an energy storage device, comprising a battery and a cabinet as described in the first aspect, wherein the battery is accommodated in the cabinet.

[0018] In a third aspect, the utility model further provides an energy storage device, comprising an electric device and the energy storage device as described in the second aspect, wherein the energy storage device supplies power to the electric device.

[0019] The cabinet body provided by the utility model is provided with a fireproof and heat-insulating layer and an inner skin inside the outer shell, and an insulating cavity is formed between the fireproof and heat-insulating layer and the outer shell. The insulating cavity is used to form a fireproof layer, which prevents the flame from passing through the inner skin and directly burning onto the outer shell, thereby causing the flame to spread to the outside. Therefore, the cabinet body provided by the application has high fireproof performance and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is an appearance structure diagram of a cabinet in one embodiment;

[0022] Figure 2 It is a structural diagram of a fireproof and heat-insulating layer and an inner skin in one embodiment;

[0023] Figure 3 is a cross-sectional view of a cabinet according to one embodiment;

[0024] Figure 4 is a structural diagram of a support member of an embodiment;

[0025] Figure 5 yes Figure 3 A is an enlarged schematic diagram;

[0026] Figure 6 is a partial cross-sectional view of an outer skin, a fireproof and thermal insulation layer, and an inner skin in one embodiment;

[0027] Figure 7 is a structural diagram of a fixing member of an embodiment;

[0028] Figure 8 is a structural diagram of the inner side of a cabinet door in one embodiment;

[0029] Fig. 9 is a cross-sectional view of a cabinet door according to an embodiment;

[0030] Fig.10 yes Fig. 9 A magnified schematic diagram of the middle B;

[0031] Fig.11 It is a structural diagram of a cabinet body embedded in a combustion furnace in one embodiment;

[0032] Fig.12 This is a structural diagram of the cabinet body embedded in the combustion furnace from another perspective;

[0033] Fig.13 It is a structural diagram of a cabinet door embedded in a combustion furnace in one embodiment;

[0034] Fig.14 This is a structural diagram of the cabinet door embedded in the combustion furnace from another perspective.

[0035] Description of reference numerals:

[0036] 100-cabinet, 1-cabinet body, 2-cabinet door, 3-receiving cavity, 10-outer shell, 11-shell plate, 12-door panel, 20-fireproof insulation layer, 30-inner skin, 40-insulation cavity, 50-support, 60-outer skin, 70-fixing part, 80-sealing strip, 81-first sealing strip, 82-second sealing strip, 90-expansion strip, 91-first expansion strip, 92-second expansion strip, 40S-cavity, 200-combustion furnace, X-length direction, Y-width direction, Z-height direction. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0039] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0040] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0041] The utility model provides a cabinet 100, please refer to Figures 1 to 3 , including an outer shell 10, a fireproof and heat-insulating layer 20 and an inner skin 30; wherein the outer shell 10 encloses a receiving cavity 3; the fireproof and heat-insulating layer 20 is received in the receiving cavity 3, and at least part of the fireproof and heat-insulating layer 20 and the outer shell 10 have a spacing distance to form an insulation cavity 40; the inner skin 30 is connected to the side of the fireproof and heat-insulating layer 20 facing away from the outer shell 10.

[0042] For details, please refer to Figure 1The cabinet 100 can be used as a battery cabinet, an energy storage container, a safe, etc. Preferably, the cabinet 100 is used to store batteries. Optionally, the cabinet 100 can be in a hexahedral shape, including a bottom surface and a top surface facing each other, a left surface and a right surface facing each other, and a front surface and a back surface facing each other. The cabinet 100 includes a length direction X, a width direction Y, and a height direction Z, such as Figure 1 As shown, the length direction X and the width direction Y define the bottom and top surfaces of the energy storage device, the width direction Y and the height direction Z define the left and right surfaces of the energy storage device, and the length direction X and the height direction Z define the front and back surfaces of the energy storage device.

[0043] Optional, please refer to Figure 1 The shell 10 is a hexahedron and includes a bottom plate, a top plate, a left side plate, a right side plate, a front plate and a back plate; wherein the bottom plate includes the bottom surface, the top plate includes the top surface, the left side plate includes the left surface, the right side plate includes the right surface, the front plate includes the front surface, and the back plate includes the back surface.

[0044] Optional, please refer to Figure 2 and Figure 3 The fireproof and heat-insulating layer 20 is accommodated in the accommodating cavity 3, and the fireproof and heat-insulating layer 20 has six pieces, and the six pieces of fireproof and heat-insulating layers 20 form a three-dimensional hexahedron shape, so it can be understood that the fireproof and heat-insulating layer 20 can be nested in the shell 10. The six pieces of fireproof and heat-insulating layers 20 include a bottom layer, a top layer, a left layer, a right layer, a front layer and a back layer; wherein the bottom layer is arranged on the bottom plate, the top layer is arranged on the top plate, the left layer is arranged on the left plate, the right layer is arranged on the right plate, the front layer is arranged on the front plate, and the back layer is arranged on the back plate.

[0045] Optional, please refer to Figure 3 , at least part of the fireproof and heat-insulating layers 20 is spaced from the outer shell 10, including the following situations: (1) at least one of the six fireproof and heat-insulating layers 20 is spaced from the outer shell 10 at the corresponding position, for example, there is a space between the left layer and the left panel; (2) all six fireproof and heat-insulating layers 20 are spaced from the outer shell 10; (3) part of one of the fireproof and heat-insulating layers 20 is spaced from the outer shell 10 at the corresponding position, for example, there is a space between the middle of the left layer and the left panel.

[0046] Optional, please refer to Figure 2 and Figure 3 The inner skin 30 is also received in the receiving cavity 3, and the inner skin 30 may have six pieces, and the six inner skins 30 are connected to the six fireproof and heat-insulating layers 20 in a one-to-one correspondence. And the inner skin 30 is connected to the side of the fireproof and heat-insulating layer 20 facing away from the outer shell 10.

[0047] It can be understood that based on the above structure, the cabinet body 100 can be divided into three fireproof layers from the inside to the outside, namely the first fireproof layer composed of the inner skin 30 and the fireproof insulation layer 20, the second fireproof layer composed of the insulation cavity 40, and the third fireproof layer composed of the outer shell 10.

[0048] Optionally, when a fire occurs inside the cabinet 100, the first fireproof layer is the surface directly exposed to fire, so the first fireproof layer can be made of highly flame-retardant and fireproof materials; the second fireproof layer is an enclosed air layer enclosed by the fireproof insulation layer 20 and the outer shell 10, and can have a lower insulation coefficient; the third fireproof layer adopts a sheet metal structure to provide effective support for the first fireproof layer, and at the same time maintain the integrity of the cabinet 100 at high temperatures, thereby preventing the first fireproof layer from losing support and preventing the first fireproof layer from tearing and catching fire and spreading fire.

[0049] The cabinet 100 provided by the utility model is provided with a fireproof heat-insulating layer 20 and an inner skin 30 inside the outer shell 10, and an insulation cavity 40 is formed between the fireproof heat-insulating layer 20 and the outer shell 10, and a fireproof layer is formed by using the insulation cavity 40 to prevent the flame from passing through the inner skin 30 and directly burning the outer shell 10, thereby causing the flame to spread to the outside, so that the cabinet 100 provided by the present application has high fireproof performance and high safety. The interior of the cabinet 100 can achieve IP66 level waterproof and EI120 level fire resistance; the insulation cavity 40 is formed between the fireproof heat-insulating layer 20 and the outer shell 10, that is, the excessive design of the fireproof heat-insulating layer 20 and the inner skin 30 is saved, and the fireproof performance can also be improved; and the outer shell 10 and the fireproof heat-insulating layer 20 and the inner skin 30 can be designed separately, and different materials are independent and detachable, so that different combinations of the outer shell 10 and different structures in different fire scenes can be achieved, and the designability of the cabinet 100 is improved.

[0050] In one implementation, please refer to Figure 4 and Figure 5 The cabinet 100 also includes a support member 50, which is accommodated in the accommodating cavity 3, the support member 50 is connected to the outer shell 10, the fireproof and heat-insulating layer 20 is connected to the support member 50, and the fireproof and heat-insulating layer 20 is connected to the side of the support member 50 facing away from the shell to form an insulation cavity 40.

[0051] For details, please refer to Figure 4The support member 50 can be a reinforcing rib. The cabinet 100 includes a plurality of support members 50, and the plurality of support members 50 are spliced ​​to form a frame structure. The outer shell 10 is welded on the support member 50 to wrap the support member 50, that is, the support member 50 is accommodated in the accommodating cavity 3, and the support member 50 is connected to the outer shell 10. It can be understood that the plurality of support members 50 are combined to form a cage-shaped frame structure, and the bottom plate, top plate, left plate, right plate, front plate and back plate of the outer shell 10 are respectively welded on the support members 50 at corresponding positions, thereby obtaining a hexahedral outer shell 10.

[0052] Optional, please refer to Figure 5 , the fireproof heat insulation layer 20 is connected to the side of the support member 50 facing away from the shell to form the heat insulation cavity 40. For example, a plurality of support members 50 may be connected to the left side panel, and the left side layer is connected to the plurality of support members 50, that is, the plurality of support members 50 are located between the left side panel and the left side layer. It can be understood that since there are a plurality of support members 50 and they can be arranged at intervals, there will be a position of the left side layer that is not connected to the support member 50 and has a spacing distance from the left side panel, thereby forming the heat insulation cavity 40 described above.

[0053] By arranging the support member 50 between the outer shell 10 and the fireproof insulation layer 20, it is not only conducive to forming the insulation cavity 40, but also can provide a support position for the outer shell 10, improve the structural strength of the cabinet 100, and avoid the phenomenon that the material inside the cabinet 100 is completely burned to the point of structural collapse after a fire occurs.

[0054] In one implementation, please refer to Figure 3 and Figure 5 The support member 50 is arranged between the left side plate and the left side layer, that is, there is a heat insulation cavity 40 between the left side plate and the left side layer; the support member 50 is also arranged between the right side plate and the right side layer, that is, there is a heat insulation cavity 40 between the right side plate and the right side layer; the support member 50 is also arranged between the bottom plate and the bottom layer, that is, there is a heat insulation cavity 40 between the bottom plate and the bottom layer; the support member 50 is also arranged between the top plate and the top layer, that is, there is a heat insulation cavity 40 between the top plate and the top layer; the support member 50 is also arranged between the front plate and the front layer, that is, there is a heat insulation cavity 40 between the front plate and the front layer. It needs to be explained that there may be no heat insulation cavity 40 between the back plate and the back layer.

[0055] By not providing the heat insulating cavity 40 only between the back panel and the back layer, the storage space for the battery can be increased, thereby ensuring the battery energy density in the cabinet 100 .

[0056] In one implementation, please refer to Figure 5 and Figure 6 The cabinet 100 further includes an outer skin 60 , which is connected to a side of the fireproof and heat-insulating layer 20 facing away from the inner skin 30 , and at least a portion of the outer skin 60 is spaced apart from the outer shell 10 to form an insulation cavity 40 .

[0057] Specifically, the outer skin 60 is arranged between the support member 50 and the fireproof and heat-insulating layer 20, that is, the outer skin 60 is directly connected to the support member 50, and the fireproof and heat-insulating layer 20 is connected to the outer skin 60. Optionally, the number of the outer skins 60 can be six, and the six outer skins 60 are connected to the six fireproof and heat-insulating layers 20 in a one-to-one correspondence. It can be understood that the outer skin 60, the fireproof and heat-insulating layer 20 and the inner skin 30 form a sandwich structure in the receiving cavity 3, and the three are stacked.

[0058] By providing another outer skin 60 between the support member 50 and the fireproof and heat-insulating layer 20 , the waterproof and fireproof level of the cabinet 100 can be further improved, so that the cabinet 100 can be suitable for higher-level safety scenarios.

[0059] In one implementation, please refer to Figure 5 and Figure 7 The cabinet 100 further includes a fixing member 70 , which is connected to a side of the inner skin 30 facing away from the fireproof and heat-insulating layer 20 , and is used to reinforce the fireproof and heat-insulating layer 20 and the inner skin 30 .

[0060] For details, please refer to Figure 7 The fixing member 70 may be a fixing angle steel, and the cross-sectional shape of the fixing member 70 is "L" shaped, and in other embodiments, it may also be "I" shaped. The fixing member 70 is disposed at the connection between the two inner skins 30, and the fixing member 70 may be welded, glued or screwed to the inner skin 30, and the fixing member 70 fixes the fireproof and heat-insulating layer 20 and the inner skin 30.

[0061] Understandable, please refer to Figure 5 The fixing member 70 is arranged at the connection of the two inner skins 30, that is, the fixing member 70 connects the two adjacent inner skins 30 respectively, so the number of the fixing members 70 is multiple. For example, the inner skin 30 corresponding to the left layer is connected to the inner skin 30 corresponding to the back layer, so a fixing member 70 can be arranged at the connection between the two. Optionally, the number of the fixing members 70 is multiple, and the multiple fixing members 70 are connected to form a frame structure.

[0062] Optionally, the fireproof and heat-insulating layer 20 is closely attached to the support 50, and the inner skin 30 is fixed by the fixing member 70, so that the inner skin 30 and the fireproof and heat-insulating layer 20 form a whole; the inner skin 30 and the fireproof and heat-insulating layer 20 enclose a closed structure. The combined structure of the inner skin 30 and the fireproof and heat-insulating layer 20 is spliced ​​together with the combined structure of the support 50 and the outer shell 10, so that the two combined structures are reassembled to form double protection, which is fireproof and heat-insulating internally and anti-corrosion and insulation externally, thereby improving the structural strength and waterproof and fireproof performance of the cabinet 100, and the cabinet 100 also has the fireproof grade EI120 and IP66 protection requirements.

[0063] In one embodiment, the material used for the fireproof and heat-insulating layer 20 includes composite fireproof materials, aerogels, nanomaterials, etc., or is a composite of the above materials. The fireproof and heat-insulating layer 20 is located between the inner skin 30 and the outer skin 60, and is made of high-performance fireproof materials, which can improve the fire resistance level and reduce the electrical insulation gap.

[0064] In one embodiment, the thickness of the fireproof and heat-insulating layer 20 can be 20 mm. This ensures that the thickness of the fireproof and heat-insulating layer 20 is moderate and not too thick, and ensures that the batteries contained therein have a high energy density. A 20 mm thick high-performance fireproof and heat-insulating layer 20 can reach an EI120 fire resistance rating. While improving the fire resistance rating, the thinner the fireproof and heat-insulating layer 20 is, the less impact it has on the energy density of the energy storage product.

[0065] In other embodiments, the thickness of the fireproof and heat-insulating layer 20 can also be 10 mm, 15 mm, etc. It is understandable that fireproof and heat-insulating layers 20 of different thicknesses can correspond to different fire resistance limits. Therefore, fireproof and heat-insulating layers 20 of different thicknesses can be laid according to the fire resistance limit requirements of different products; different material thicknesses can correspond to products with different fire resistance properties, such as fire resistance limit EI60 (EI60 is fire resistance limit 60min), material thickness 10mm, fire resistance limit EI90 (fire resistance limit 90min), material thickness 15mm, etc.

[0066] In one embodiment, the width (thickness) of the heat insulation cavity 40 between the fireproof heat insulation layer 20 and the housing 10 may be 20 mm. The heat insulation coefficient of the heat insulation cavity 40 at room temperature is 0.026 (the heat insulation coefficient of the fireproof heat insulation layer 20 is about 0.03).

[0067] In one embodiment, the material used for the inner skin 30 includes steel or fiberglass; the material used for the outer skin 60 includes steel or fiberglass, and the materials used for the inner skin 30 and the outer skin 60 may be different. The inner skin 30 may preferably be fiberglass, and the advantage of using fiberglass is that it can provide stronger insulation performance, further reduce the electrical insulation gap, and increase the battery energy density.

[0068] In other embodiments, the material used for the inner skin 30 is not limited to the two types provided above, and may also be other materials.

[0069] In one embodiment, the surface of the inner skin 30 may be coated with a fire retardant coating to prevent the flame from directly impacting the inner skin 30 and give full play to the thermal insulation performance advantages of the high-performance material.

[0070] In one embodiment, the surfaces of the support member 50 and the fixing member 70 may be coated with fire-retardant paint to ensure the fire-proof and heat-insulating properties of the joints.

[0071] In one implementation, please refer to Figure 1 and Figure 8 The cabinet body 100 includes a cabinet body 1 and a cabinet door 2, the cabinet door 2 and the cabinet body 1 are connected in an openable and closable manner, the cabinet body 1 includes a shell plate 11, the cabinet door 2 includes a door plate 12, the shell plate 11 and the door plate 12 together form an outer shell 10, and the cabinet body 1 and the cabinet door 2 are both provided with a fireproof and heat-insulating layer 20 and an inner skin 30.

[0072] For details, please refer to Figure 1 On the basis of the above embodiment, the cabinet 100 has a hexahedral structure, wherein the cabinet 100 includes a cabinet body 1 having five outer surfaces, and a cabinet door 2 having one outer surface. The cabinet door 2 and the cabinet body 1 are connected in an opening and closing manner, and after the cabinet door 2 and the cabinet body 1 are closed, they jointly enclose a closed receiving cavity 3. Therefore, the cabinet body 1 has an opening in the shape of a "mouth", and the cabinet door 2 is connected to the opening, and the closed receiving cavity 3 is enclosed by closing the opening.

[0073] Optional, please refer to Fig. 9 The cabinet body 1 includes a shell plate 11, which includes the bottom plate, top plate, left plate, right plate and back plate mentioned above; the cabinet body 1 includes a door plate 12, which is the front plate mentioned above; the shell plate 11 and the door plate 12 together constitute an outer shell 10.

[0074] Optional, please refer to Fig. 9 The cabinet body 1 and the cabinet door 2 are both provided with a support member 50, a fireproof and heat-insulating layer 20, and an inner skin 30, and may also be provided with an outer skin 60. Therefore, the cabinet body 1 and the cabinet door 2 both have the above three fireproof layers, namely, the first fireproof layer composed of the inner skin 30 (outer skin 60) and the fireproof and heat-insulating layer 20, the second fireproof layer composed of the heat-insulating cavity 40, and the third fireproof layer composed of the outer shell 10.

[0075] Optionally, the cabinet body 1 and the cabinet door 2 can be connected to each other through a door hinge and a door lock. For example, the door hinge is arranged on the left side of the cabinet door 2, and the door lock is arranged on the right side of the cabinet door 2. The cabinet door 2 and the cabinet body 1 are rotatably connected through the door hinge. After the cabinet door 2 and the cabinet body 1 are closed, they are connected and fixed through the door lock.

[0076] Optionally, the inner skin 30 and the fireproof and heat-insulating layer 20 in the cabinet body 1 need to be integrally formed with the shell plate 11 by a fixing piece 70, so that the fixing piece 70 is thermally connected. In order to improve the thermal insulation performance of the cabinet body 1, the number of fixing pieces 70 should be minimized, so an "L"-shaped fixing piece 70 is used to fix the joints of the inner skin 30 and the fireproof and heat-insulating layer 20 in the cabinet body 1.

[0077] Optionally, the inner skin 30 and the fireproof insulation layer 20 in the cabinet door 2 need to form a whole with the door panel 12 using a fixing part 70, and do not need to be connected to the inner skin 30 and the fireproof insulation layer 20 in the cabinet door 2, so the inner skin 30 and the fireproof insulation layer 20 on the cabinet door 2 are fixed to the door panel 12 using an "I"-shaped fixing part 70; and the fixing part 70 and the inner skin 30 can be fixed by screws to achieve separate design and independence from each other, and the fixing part 70 and the inner skin 30 can be disassembled to meet the design requirements of different materials and different combinations in different fire protection scenarios.

[0078] In one implementation, please refer to Fig. 9 An annular sealing strip 80 is also provided at the opening of the cabinet body 1. The sealing strip 80 is located between the cabinet body 1 and the cabinet door 2. The sealing strip 80 is used for waterproofing and / or fireproofing.

[0079] Specifically, the cabinet door 2 includes a door leaf, the cabinet body 1 includes a door frame, and the sealing strip 80 is arranged between the door leaf and the door frame, that is, the door frame and the door leaf are sealed by the sealing strip 80.

[0080] Optionally, the door frame is annular and is arranged near the opening of the cabinet body 1 and can be located at the rear side of the opening, and the door frame protrudes from the inner skin 30 on the cabinet body 1. The door leaf can be the door panel 12 mentioned above, and the area of ​​the fireproof and heat-insulating layer 20 and the inner skin 30 on the cabinet door 2 can be smaller than the area of ​​the door leaf, so that the fireproof and heat-insulating layer 20 and the inner skin 30 can extend into the receiving cavity 3 and contact with the door frame.

[0081] Optionally, the support member 50 at the door frame may be coated with a flexible protective material to ensure its fireproof performance and further achieve a fireproof rating of EI120.

[0082] Optionally, the door hinges and door locks mentioned above can be arranged on the door leaf.

[0083] Optionally, the sealing strip 80 may be a fireproof and waterproof rubber strip, which is arranged between the door leaf and the door frame, and can also achieve soft contact between the door leaf and the door frame to avoid deformation caused by impact when the door leaf and the door frame are closed.

[0084] Optionally, the door frame and the door leaf form a heat-insulating bridge through a sealing strip 80, and the sheet metal around the sealing strip 80 can be sprayed with fire-retardant paint to further insulate.

[0085] By providing a sealing strip 80 between the cabinet body 1 and the cabinet door 2 , the cabinet body 100 can be fireproof and flame retardant while achieving IP66 high protection.

[0086] In one implementation, please refer to Fig.10, the sealing strip 80 includes an annular first sealing strip 81 and an annular second sealing strip 82. The first sealing strip 81 and the second sealing strip 82 are arranged on opposite sides in the thickness direction of the cabinet door 2, and the second sealing strip 82 is wound around the outer periphery of the first sealing strip 81.

[0087] Specifically, please refer to Fig.10 , the number of the sealing strips 80 is two, namely the first sealing strip 81 and the second sealing strip 82 respectively, wherein the first sealing strip 81 is an inner seal and the second sealing strip 82 is an outer seal.

[0088] Optionally, as Fig.10 shown, after the cabinet door 2 and the cabinet body 1 are closed, the inner skin 30 on the door frame and the cabinet door 2 is sealed by the first sealing strip 81. The door hinge and the end of the door lock are sealed by the second sealing strip 82. Therefore, the first sealing strip 81 and the second sealing strip 82 can be arranged on opposite sides in the thickness direction of the cabinet door 2, and the second sealing strip 82 is wound around the outer periphery of the first sealing strip 81.

[0089] By arranging the first sealing strip 81 between the door frame and the inner skin 30 on the cabinet door 2 for sealing, and arranging the second sealing strip 82 at the end of the door hinge and the door lock for sealing, a double-sealing effect is achieved, so that it can meet both the EI120 fire protection level requirement and the IP66 waterproof and dustproof requirement.

[0090] In one implementation, please refer to Fig. 9 , a cavity 40S is also formed between the cabinet body 1 and the cabinet door 2. The cabinet body 100 further includes an expansion strip 90, and the expansion strip 90 is received in the cavity 40S.

[0091] Specifically, on the basis of the above implementation, since the fireproof and heat-insulating layer 20 and the inner skin 30 on the cabinet door 2 are smaller in area than the area of the door leaf, there is a spacing distance between the fireproof and heat-insulating layer 20 (inner skin 30) on the cabinet door 2 and the fireproof and heat-insulating layer 20 (inner skin 30) on the cabinet body 1. As Fig.10 shown, this spacing distance forms the cavity 40S for the facade broken bridge heat insulation.

[0092] Optionally, the cavity 40S between the cabinet body 1 and the cabinet door 2 can be in a shape similar to a "mouth". The cavity 40S is enclosed by the cabinet body 1 and the cabinet door 2, and the two respectively provide opposite inner sides. For example, the left and right sides of the cavity 40S are the cabinet door 2 and the cabinet body 1 respectively, and the front and rear sides of the cavity 40S are the cabinet door 2 and the cabinet body 1 respectively. The cavity 40S formed here can utilize the low thermal conductivity of air to achieve the broken bridge heat insulation design.

[0093] Optionally, the expansion strip 90 can be a fireproof rubber strip, which is arranged in the cavity 40S, and the expansion strip 90 can be connected to the cabinet body 1 and / or the cabinet door 2. The sealing strip 80 mentioned above can be arranged at the gap between the receiving cavity 3 (or the external space) and the cavity 40S, so as to achieve the sealing of the cavity 40S. However, the sealing strip 80 has the risk of aging and deformation at high temperatures, so the expansion strip 90 is arranged inside, and the expansion strip 90 expands to fill the cavity 40S, thereby sealing and insulating the cavity 40S.

[0094] In one implementation, please refer to Fig.10 The expansion strip 90 includes a first expansion strip 91 and a second expansion strip 92 . The first expansion strip 91 and the second expansion strip 92 are arranged opposite to each other. The first expansion strip 91 is connected to the cabinet body 1 , and the second expansion strip 92 is connected to the cabinet door 2 .

[0095] For details, please refer to Fig.10 There are two expansion strips 90, namely a first expansion strip 91 and a second expansion strip 92, wherein the first expansion strip 91 and the second expansion strip 92 are respectively arranged on opposite walls in the cavity 40S. Since the cavity 40S is enclosed by the cabinet body 1 and the cabinet door 2, when the first expansion strip 91 and the second expansion strip 92 are arranged opposite to each other, the first expansion strip 91 is connected to the cabinet body 1, and the second expansion strip 92 is connected to the cabinet door 2.

[0096] In one embodiment, the utility model further provides an energy storage device, which includes a battery and the cabinet 100 described above, wherein the battery is accommodated in the cabinet 100 .

[0097] In one embodiment, the utility model further provides an energy storage device, which includes an electrical device and the energy storage device described above, and the energy storage device supplies power to the electrical device.

[0098] In one embodiment, the present invention also provides a fire protection test method for the cabinet 100, please refer to Figure 11-Figure 14 , testing the fire resistance performance of the cabinet 100 includes the following steps:

[0099] Step S1: testing the cabinet body 1, the five sides of the cabinet body 1 are taken as a whole and embedded in the combustion furnace 200, so that the receiving cavity 3 of the cabinet body 1 is connected with the inner cavity of the combustion furnace 200, and the cabinet body 1 is exposed outside the combustion furnace 200; the inside of the combustion furnace 200 simulates conventional ignition; the temperature rise curve is T=345lg(8t+1)+20.

[0100] Step S2: testing the cabinet door 2, embedding the cabinet door 2 on the combustion furnace 200 so that the inner wall of the cabinet door 2 faces the inner cavity of the combustion furnace 200, and the outer wall of the cabinet door 2 is exposed outside the combustion furnace 200; the inner side of the combustion furnace 200 simulates conventional fire; the temperature rise curve is T=345lg(8t+1)+20.

[0101] Specifically, the combustion furnace 200 provided by the present invention is as follows Fig.12 As shown, the combustion furnace 200 includes an inner cavity and a furnace opening, wherein the furnace opening communicates the inner cavity with the external space. Conventional fire is simulated in the inner cavity of the combustion furnace 200.

[0102] In step S1, refer to Fig.11 and Fig.12 The cabinet body 1 is embedded in the furnace mouth of the combustion furnace 200, and the receiving cavity 3 is connected with the inner cavity of the combustion furnace 200, so that the inner skin 30 in the cabinet body 1 becomes the fire-receiving surface.

[0103] In step S2, please refer to Fig.13 and Fig.14 The cabinet door 2 is embedded in the furnace mouth of the combustion furnace 200, and the inner wall surface of the cabinet door 2 faces the inner cavity of the combustion furnace 200, so that the inner skin 30 on the cabinet door 2 becomes the fire-receiving surface.

[0104] Regarding fire test methods, the energy storage industry currently does not have a clear test method, and most of them refer to relevant standards of the construction industry. However, the fire test in the construction industry tests components in different positions, such as vertical components-walls, horizontal components ceilings and floors, and tests them separately to obtain the fire resistance of different components. This method is only for components, and it is impossible to evaluate the fire resistance of the joints on each side of the cabinet 100 (energy storage device) (it can only detect the fire resistance of one side), so it is impossible to evaluate the fire resistance of the entire cabinet. The fire resistance test of the chemical storage cabinet can test the entire cabinet, but this test method is to test the cabinet body 1 shell 10 (external fire), which is inconsistent with the thermal runaway state of the energy storage device, and the flame spreads from the inside to the outside (the back of the fire side is the cabinet body 1 shell 10).

[0105] Therefore, the utility model provides a fire protection test method applicable to the cabinet 100, especially a fire protection test method for the energy storage device, which can evaluate the fire protection performance of the joints on each surface of the cabinet 100 (energy storage device) and can also evaluate the fire protection performance of the entire cabinet; it can detect the protection status of the cabinet 100 (energy storage device) when a fire occurs inside.

[0106] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship of the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0107] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A cabinet, characterized in that: include: A housing enclosing a receiving cavity, wherein the receiving cavity is suitable for receiving a battery; A fireproof and heat-insulating layer is contained in the containing cavity, and at least a part of the fireproof and heat-insulating layer is spaced apart from the outer shell to form a heat-insulating cavity; The inner skin is connected to the side of the fireproof and heat-insulating layer facing away from the outer shell.

2. The cabinet according to claim 1, characterized in that: The cabinet also includes: A support member is received in the receiving cavity, the support member is connected to the outer shell, the fireproof and heat-insulating layer is connected to the support member, and the fireproof and heat-insulating layer is connected to a side of the support member facing away from the outer shell to form the heat-insulating cavity.

3. The cabinet according to claim 2, characterized in that: The support member is a reinforcing rib, and the number of the reinforcing ribs is multiple, and the multiple reinforcing ribs are spliced ​​to form a frame structure.

4. The cabinet according to claim 1, characterized in that: The cabinet also includes: An outer skin is connected to a side of the fireproof and heat-insulating layer facing away from the inner skin, and at least a portion of the outer skin is spaced apart from the outer shell to form the heat-insulating cavity.

5. The cabinet according to claim 1, characterized in that: The cabinet also includes: A fixing piece, wherein the fixing piece is connected to a side of the inner skin facing away from the fireproof and heat-insulating layer, and the fixing piece is used to reinforce the fireproof and heat-insulating layer and the inner skin.

6. The cabinet according to claim 5, characterized in that: The fixing member is a fixed angle steel, and the fixed angle steel is connected and fixed to the inner skin.

7. The cabinet according to claim 1, characterized in that: The cabinet comprises: A cabinet body and a cabinet door, wherein the cabinet door and the cabinet body are connected in an opening and closing manner, the cabinet body includes a shell plate, and the cabinet body includes a door plate, and the shell plate and the door plate together constitute the outer shell, and the cabinet body and the cabinet door are both provided with the fireproof and heat-insulating layer and the inner skin.

8. The cabinet according to claim 7, characterized in that: An annular sealing strip is also provided at the opening of the cabinet body, and the sealing strip is located between the cabinet body and the cabinet door, and the sealing strip is used for waterproofing and / or fireproofing.

9. The cabinet according to claim 8, characterized in that: The sealing strip comprises an annular first sealing strip and an annular second sealing strip, the first sealing strip and the second sealing strip are arranged on opposite sides in the thickness direction of the cabinet door, and the second sealing strip is arranged around the outer circumference of the first sealing strip.

10. The cabinet according to claim 7, characterized in that: A cavity is formed between the cabinet body and the cabinet door. The cabinet body further comprises an expansion strip, and the expansion strip is accommodated in the cavity.

11. The cabinet according to claim 10, characterized in that: The expansion strip comprises a first expansion strip and a second expansion strip, the first expansion strip and the second expansion strip are arranged opposite to each other, the first expansion strip is connected to the cabinet body, and the second expansion strip is connected to the cabinet door.

12. The cabinet according to claim 1, characterized in that: The material of the inner skin includes steel or fiberglass, and the fireproof and heat-insulating layer includes aerogel.

13. An energy storage device, characterized in that: The invention comprises a battery and a cabinet as claimed in any one of claims 1 to 12, wherein the battery is accommodated in the cabinet.

14. An energy storage device, characterized in that: It comprises an electric device and an energy storage device as claimed in claim 13, wherein the energy storage device supplies power to the electric device.

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