An explosion venting system, a cabinet for explosion venting, an energy storage system

Abstract

The application provides a kind of explosion venting system, cabinet for venting, energy storage system, can reduce the risk of water leakage.The explosion venting system can be applied to box venting.The explosion venting system can include a fixed plate, the fixed plate is fixed on the outer wall of the box, the outer wall is the top wall of the box, or the outer wall is any side wall of the box.An explosion venting channel is provided on the surface of the fixed plate away from the outer wall, and the explosion venting channel is in communication with the opening on the outer wall.An explosion venting cover is provided on the explosion venting channel, the explosion venting cover is opposite to the fixed plate, and is fixed on the fixed plate by explosion venting bolts.

Description

Technical Field

[0001] This application relates to the field of explosion venting technology, and in particular to an explosion venting system, a cabinet for explosion venting, and an energy storage system. Background Technology

[0002] Energy storage batteries are typically housed in electrochemical energy storage cabinets. During thermal runaway, complex chemical and physical reactions occur within the battery, involving the electrolyte, positive and negative electrode materials, and separator, releasing large amounts of flammable gas into the cabinet. When this flammable gas encounters a spark or high temperature, it can cause an explosion. This explosion can lead to cabinet disintegration, and the resulting shockwave and heat radiation pose a significant threat to the surrounding area. Therefore, existing electrochemical energy storage cabinets are equipped with explosion venting devices. In the event of an explosion within the cabinet, these devices can directionally release the shockwave and flames, preventing the cabinet from disintegrating under excessive explosive pressure. Currently, the explosion venting devices on electrochemical energy storage cabinets are typically embedded explosion vent doors or windows, which pose a significant risk of water leakage. Summary of the Invention

[0003] This application provides an explosion venting system, an explosion venting cabinet, and an energy storage system, which can reduce the risk of water leakage.

[0004] Firstly, this application provides an explosion venting system applicable to explosion venting within an enclosure. The explosion venting system may include a fixing plate fixed to the outer wall of the enclosure, which may be the top wall or any side wall of the enclosure. An explosion venting channel is disposed on the surface of the fixing plate away from the outer wall and communicates with an opening on the outer wall. An explosion venting cover is placed over the explosion venting channel, opposite to the fixing plate, and fixed to the fixing plate by explosion venting bolts.

[0005] In this embodiment, when an explosion occurs, the function of the explosion-proof bolts in fixing the explosion-proof cover to the fixing plate fails, causing the explosion-proof cover to move away from the explosion-proof channel. The explosion-proof channel connects the outside of the enclosure with the inside of the enclosure, realizing the explosion-proof function of the explosion-proof system. The explosion-proof channel is located on the surface of the fixing plate away from the outer wall, and it is visible that the explosion-proof channel extends outwards from the enclosure. The explosion-proof cover, placed over the explosion-proof channel, isolates the explosion-proof channel from the outside of the enclosure. Furthermore, the explosion-proof channel, located on the fixing plate and extending outwards from the enclosure, prevents liquid from entering the enclosure through the explosion-proof opening, reducing the risk of liquid entering the enclosure. The explosion-proof system provided in this embodiment can prevent rainwater from directly entering the enclosure or prevent water accumulated on the outer wall of the enclosure from entering the enclosure. The fixing plate can be flexibly installed on the outer wall of the enclosure, reducing the installation complexity of the explosion-proof system and simplifying installation, thus having a wide range of applications.

[0006] In one possible design, the explosion venting system further includes: a first blocking structure disposed on the outer peripheral wall of the explosion venting channel and at one end away from the fixed plate, wherein a first surface of the first blocking structure faces the explosion venting cover, a second surface of the first blocking structure faces the fixed plate, and the first surface of the first blocking structure and the second surface of the first blocking structure are opposite to each other.

[0007] In this embodiment, in scenarios where the explosion vent cover experiences abnormal loads, such as the presence of snow or foreign objects, the first blocking structure can support the explosion vent cover. The first blocking structure increases the load-bearing or supporting capacity of the explosion vent cover, eliminating the need for an additional abnormal load protection structure. Optionally, the explosion vent bolt avoids the first blocking structure. This design prevents the risk of liquid seeping in from the explosion vent bolt.

[0008] In one possible design, the explosion venting system further includes a first seal for sealing the gap between one surface of the first barrier structure and the explosion venting cover.

[0009] In this embodiment of the application, the first sealing element can be used to block the gap between the first blocking structure and the explosion relief cover, which can prevent liquid from entering the interior of the box through the gap between the first blocking structure and the explosion relief cover.

[0010] In one possible design, the explosion vent cover includes a bottom wall and side walls, with the bottom wall covering the explosion vent channel and the side walls opposite to the explosion vent channel. In this design, the side walls prevent external liquids from entering the explosion vent channel.

[0011] In one possible design, the explosion venting system further includes: a bolt fixing post disposed on the fixing plate and abutting against the explosion venting cover; wherein the explosion venting bolt includes: a washer disposed on the outer surface of the bottom wall of the explosion venting cover, and the surface of the washer is parallel to the outer surface of the bottom wall of the explosion venting cover; and a bolt that penetrates the washer and the bottom wall of the explosion venting cover and is connected to the bolt fixing post.

[0012] In this embodiment, the bolt fixing post can abut against the explosion vent cover. The bolt fixing post 304 can enhance the supporting force at the contact point between the plate-shaped gasket and the explosion vent cover. When abnormal loads are applied to the plate-shaped gasket outside the enclosure, the force generated by the abnormal load can be transferred to the bolt fixing post, which can prevent the plate-shaped gasket from failing due to abnormal loads from outside the enclosure.

[0013] In one possible design, the explosion venting system further includes a status detection component; the status detection component is used to detect whether the explosion venting cover covers the explosion venting channel. In this embodiment, the status detection component detects whether the explosion venting cover covers the explosion venting channel, which facilitates the determination of the status of the explosion venting system.

[0014] In some examples, the status detection component includes the limit switch; the contact end of the limit switch is used to contact the bottom wall of the explosion vent cover, wherein if the contact end of the limit switch separates from the bottom wall of the explosion vent cover, a first indication message is sent; or, if the contact end of the limit switch contacts the bottom wall of the explosion vent cover, a second indication message is sent; wherein the first indication signal indicates that the explosion vent cover is not covering the explosion venting channel, and the second indication signal indicates that the explosion vent cover is covering the explosion venting channel. Optionally, the fixed end of the limit switch may be disposed on the inner wall of the explosion venting channel.

[0015] In other examples, the contact end of the limit switch is used to contact the inner wall of the explosion venting channel, wherein if the contact end of the limit switch separates from the inner wall of the explosion venting channel, the first indication information is sent; or if the contact end of the limit switch contacts the inner wall of the explosion venting channel, the second indication information is sent. Optionally, the fixed end of the limit switch is disposed on the surface of the bottom wall facing the explosion venting channel.

[0016] In one possible design, the explosion venting system further includes a first heat insulation element. The first heat insulation element may be disposed on the bottom wall and on the inner surface of the bottom wall; wherein, when the explosion venting cover is placed over the explosion venting channel, the projection of the first heat insulation element on the bottom wall is located within the outline of the projection of the explosion venting channel on the bottom wall.

[0017] In this embodiment, the first heat insulation component can prevent water droplets from condensing on the bottom wall of the explosion vent cover, thus avoiding affecting the safe operation of the internal components. In some examples, the first heat insulation component can be thermal insulation cotton. Optionally, the first heat insulation component can be rock wool or polyurethane insulation materials.

[0018] In one possible design, the explosion venting system further includes: a second heat insulation component disposed on the bottom wall and on the outer surface of the bottom wall; and a moisture-proof cover covering the second heat insulation component. In this embodiment, the second heat insulation component can maintain the internal temperature of the enclosure and prevent water droplets from condensing on the bottom wall of the explosion venting cover, thus avoiding affecting the safe operation of the internal components.

[0019] In one possible design, the explosion venting system further includes a second blocking structure disposed on the side wall of the explosion venting cover facing the explosion venting channel, wherein one surface of the second blocking structure faces the explosion venting cover and the other surface faces the fixing plate, and the second blocking structure avoids the explosion venting bolt.

[0020] In this embodiment, in some scenarios, such as when the temperature inside the enclosure is higher than the temperature outside the enclosure, water vapor in the air can easily condense into water droplets on the explosion vent cover. Providing a second blocking structure on the side wall of the explosion vent cover can improve the sealing effect of the explosion venting system and prevent liquid from entering the enclosure.

[0021] In one possible design, the explosion venting system further includes a connecting assembly, through which the explosion vent cover is connected to the fixing plate. The connecting assembly prevents the explosion vent cover from flying off the enclosure in the event of an explosion. This design improves the safety of the explosion venting system.

[0022] In some examples, the connecting assembly is a hinged assembly; the explosion vent bolt is located on the first side of the explosion vent cover; wherein the explosion vent cover is hinged to the fixing plate via the hinged assembly; wherein the hinged assembly is disposed on the second side of the explosion vent cover, the second side of the explosion vent cover being opposite to or adjacent to the first side of the explosion vent cover; and the hinged assembly is located between the outer wall of the explosion vent channel and the side wall, and between the bottom wall and the fixing plate. In other examples, the connecting assembly can be a rope, a telescopic rod, a linkage slider mechanism, or a multi-link mechanism.

[0023] In one possible design, the outer wall is the side wall of the enclosure; the second side of the explosion vent cover is the side of the explosion vent cover near the bottom wall of the enclosure; the explosion venting system further includes: an angle limiting component, which is used to limit the angle formed between the explosion vent cover and the fixing plate when the enclosure experiences an explosion, wherein the angle is less than 90°; wherein the angle limiting component is disposed on the third side of the explosion vent cover, wherein the third side of the explosion vent cover is adjacent to or opposite to the second side of the explosion vent cover, and one end of the angle limiting component is fixed to the explosion vent cover, and the other end of the angle limiting component is fixed to the fixing plate.

[0024] In this embodiment, when the explosion venting system is installed on the side wall of the enclosure, the explosion venting cover separates from the explosion venting channel during explosion venting. At this time, the angle limiting component can limit the angle formed between the explosion venting cover and the fixing plate, ensuring the angle is less than 90°. Limiting this angle restricts the direction of explosion venting, preventing injury to people or objects on the side of the enclosure during explosion venting.

[0025] Secondly, this application also provides a cabinet for explosion venting, which may include: a housing; and at least one explosion venting system as provided in the first aspect and any of the designs therein, the explosion venting system being disposed on the outer wall of the housing, the outer wall being the top wall or side wall of the housing. Optionally, at least one energy storage device is disposed inside the housing. In this application, the cabinet for explosion venting can have explosion venting function and has a low risk of leakage and high safety.

[0026] Thirdly, this application also provides an energy storage system that may include one or more battery packs, and the cabinet provided in the second aspect. The one or more battery packs are disposed inside the cabinet.

[0027] The technical effects that can be achieved in the second and third aspects mentioned above are described in the description of the technical effects that can be achieved by the corresponding design in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0028] Figure 1a This is a structural schematic diagram of an explosion-proof cabinet provided in an embodiment of this application;

[0029] Figure 1b This is a structural schematic diagram of an explosion-proof cabinet provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the explosion venting system provided in an embodiment of this application;

[0031] Figure 3a This is a structural schematic diagram of an explosion venting bolt;

[0032] Figure 3b This is a schematic diagram showing the state of the explosion relief bolts during explosion venting.

[0033] Figure 4a This is a structural schematic diagram of an explosion venting bolt;

[0034] Figure 4b This is a schematic diagram showing the state of the explosion relief bolts during explosion venting.

[0035] Figure 5 An explosion venting system provided in this application embodiment is Figure 1b A cross-sectional view along the AA direction;

[0036] Figure 6 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0037] Figure 7 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0038] Figure 8 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0039] Figure 9 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0040] Figure 10 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0041] Figure 11 Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0042] Figure 12a This is a schematic diagram of the structure of an explosion venting system provided in an embodiment of this application;

[0043] Figure 12b Another explosion venting system provided in the embodiments of this application is Figure 1b A cross-sectional view along the AA direction;

[0044] Figure 13 This diagram illustrates the structure of an explosion venting system according to an embodiment of this application.

[0045] Figure 14 This is a front view of a cabinet for explosion venting according to an embodiment of this application;

[0046] Figure 15 for Figure 14 The diagram shows a top view of the explosion-proof cabinet.

[0047] Figure 16 This is a front view of a cabinet for explosion venting according to an embodiment of this application;

[0048] Figure 17 for Figure 16 The image shown is a top view of the explosion venting cabinet.

[0049] Figure label:

[0050] 1-Explosion relief cabinet; 2-Explosion relief system; 110-Explosion relief cover; 110A-Bottom wall of explosion relief cover; 110B-Side wall of explosion relief cover; B2-Second side wall; B3-Third side wall; 101-Fixing plate; 101a-Second surface of the fixing plate; 102 Explosion relief channel; 103-Mounting hole; 300-Explosion relief bolt; 301-Bolt; 302-Arc-shaped gasket; 303-Plate-shaped gasket; 304-Bolt fixing post; 401-First blocking structure; 4 02-Second blocking structure; 501-First sealing element; 502-Second sealing element; 503-Sealing limiting element; 601-First heat insulation element; 602-Second heat insulation element; 603-Moisture-proof cover; 801-Limit switch; 801A-Limit switch contact end; 801B-Limit switch fixing end; 901-Connecting assembly; 902-Angle limiting assembly; 20-Box body; 20B-Opening; 20A-Outer wall; 3-Refrigeration equipment; 4-Base. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0052] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise.

[0053] References to “an embodiment” or “a specific embodiment” as used in this specification mean that one or more embodiments of this application include a particular feature, structure, or characteristic described in connection with that embodiment. The terms “comprising,” “including,” “having,” and variations thereof mean “including, but not limited to,” unless otherwise specifically emphasized.

[0054] To facilitate understanding of the explosion venting system and cabinet provided in this application, its application scenario is first introduced below. Energy storage batteries are important energy storage devices that can provide power to loads. Energy storage batteries are generally housed in electrochemical energy storage cabinets or chassis for flexible position adjustment. In this application, energy storage cabinets and chassis are referred to as energy storage cabinets. Energy storage batteries may experience thermal runaway, posing a risk of combustion and explosion. If an energy storage battery explodes inside the energy storage cabinet, the cabinet casing may disintegrate. The shock wave, thermal radiation, and debris from the cabinet disintegration pose a threat to people or objects near the electrochemical cabinet. Therefore, energy storage cabinets are equipped with explosion venting doors or windows to directionally release the shock wave and flames generated by the explosion, preventing the cabinet casing from disintegrating due to excessive explosive pressure. Existing explosion venting doors and windows on energy storage cabinets use an embedded frame design, which carries a significant risk of water accumulation and leakage. Therefore, this application provides an explosion venting system with lower risks of water accumulation and leakage, as well as a cabinet for explosion venting. The explosion venting system and the cabinet used for explosion venting in this application will be described below with reference to the accompanying drawings.

[0055] Figure 1a and Figure 1b This is a schematic diagram of a cabinet for explosion venting provided in an embodiment of this application. For ease of explanation, the cabinet for explosion venting in this application is referred to as an explosion venting cabinet. The explosion venting cabinet 1 may include a housing 20 and an explosion venting system 2 disposed on the outer wall 20A of the housing. The housing 20 may house equipment such as energy storage batteries. When an explosion occurs in the housing 20, the explosion venting system 2 is in the open state, allowing the opening 20B on the outer wall 20A of the housing 20 to communicate with the outside of the housing 20, thus achieving explosion venting. When no explosion occurs in the housing 20, the explosion venting system 2 is in the closed state, preventing the opening 20B on the outer wall 20A of the housing 20 from communicating with the outside of the housing 20. Optionally, the explosion venting system 2 may be disposed on the top wall or side wall of the housing. For example, Figure 1a The explosion venting system 2 is shown to be installed on the top wall of the enclosure 20.

[0056] This application also provides an explosion relief system 2, please continue to refer to... Figure 1a The explosion venting system 2 may include a fixed plate 101, an explosion venting channel 102, and an explosion venting cover 110.

[0057] The fixing plate 101 can be fixedly installed on the outer wall 20A. Optionally, the fixing plate 101 can be fixed to the outer wall 20A by welding, bonding, or other methods. This application does not specifically limit this. Alternatively, the fixing plate 101 can be fixed to the outer wall 20A by fasteners. For example, Figure 1a The mounting plate 101 shown in the figure has multiple mounting holes 103, and fasteners can be used to fix the mounting plate 101 to the outer wall 20A through the mounting holes 103.

[0058] The explosion venting channel 102 can be disposed on the fixed plate 101, or the explosion venting channel 102 can be formed on the fixed plate 101. The explosion venting channel 102 can communicate with the opening 20B on the outer wall 20A of the housing 20. Optionally, the outline of the projection of the explosion venting channel 102 onto the outer wall 20A can be the same as or similar to the outline shape of the opening 20B on the outer wall 20A. In this embodiment, the outline shape of the opening 20B on the outer wall 20A is not specifically limited; the outline shape of the opening 20B can be rectangular, circular, etc. For example, Figure 1a The outline of opening 20B is shown to be rectangular. Optionally, the projection of the explosion venting channel 102 onto the outer wall 20A may include opening 20B. Alternatively, the outline of the projection of the explosion venting channel 102 onto the outer wall 20A may overlap with the outline of opening 20B.

[0059] For example, the first surface of the fixing plate 101 is opposite to the second surface of the fixing plate 101, wherein the first surface of the fixing plate 101 is the side of the fixing plate 101 close to the outer wall 20A, and the second surface 101a of the fixing plate 101 is the surface away from the outer wall 20A. The first end of the explosion venting channel 102 may be disposed on the second surface of the fixing plate 101. The second end of the explosion venting channel 102 extends in a direction that can be away from the outer wall 20A. In the scenario where the explosion venting system 2 is disposed on the top wall of the housing 20, the second surface of the fixing plate 101 is above the first surface of the fixing plate 101 along the direction of gravity. The second end of the explosion venting channel 102 is above the fixing plate 101.

[0060] The explosion vent cover 110 is positioned opposite to the fixing plate 101. The explosion vent cover 110 can be placed over the second end of the explosion venting channel 102, and the explosion vent cover 110 can be fixed to the fixing plate 101 with explosion vent bolts. Please refer to... Figure 1a and Figure 1b , Figure 1a This diagram shows the explosion venting system 2 in the open state. Figure 1b This diagram shows the explosion venting system 2 in the closed state. The explosion venting cover 110 is detachably connected to the explosion venting channel 102. When the explosion venting cover 110 is on (or fastened to) the explosion venting channel 102, the explosion venting system 2 is in the closed state. When the explosion venting cover 110 is not on the explosion venting channel 102, the explosion venting system 2 is in the open state.

[0061] Please refer to Figure 2Typically, the cover portion of the explosion vent cover 110 can be referred to as the bottom wall of the explosion vent cover 110. The bottom wall 110A of the explosion vent cover 110 is used to cover the second end of the explosion venting channel 102. The explosion vent cover 110 may also include a side wall 110B. The side wall 110B of the explosion vent cover 110 is disposed circumferentially on the bottom wall 110A of the explosion vent cover 110. The side wall 110B of the explosion vent cover 110 can be used to prevent liquid outside the explosion vent cover 110 from entering the energy storage cabinet through the gap between the bottom wall 110A of the explosion vent cover 110 and the second end of the explosion venting channel 102.

[0062] Please combine Figure 1b The explosion vent cover 110 can be secured to the mounting plate 101 by one or more explosion vent bolts 300. In some examples, such as... Figure 3a As shown, the explosion vent bolt 300 may include a bolt 301 and an arc-shaped washer 302. The bolt 301 may sequentially pass through the arc-shaped washer 302, the bottom wall 110A of the explosion vent cover 110, and the fixing plate 101. The arc-shaped washer 302 has an arc-shaped sheet structure. The arc-shaped washer 302 may include an arc-shaped metal sheet and a waterproof gasket disposed on the arc-shaped metal sheet. Figure 3b As shown, if an explosion occurs inside the enclosure 20, the explosion relief cover 110, under the pressure generated by the explosion inside the enclosure 20, can deform the arc-shaped gasket 302, causing the explosion relief bolts 300 to fail in their function of fixing the explosion relief cover 110 to the fixing plate 101. Thus, under the force generated by the explosion inside the enclosure 20, the explosion relief cover 110 separates from the fixing plate 101, and the shock wave or flame generated by the explosion inside the enclosure 20 can be released to the outside of the enclosure 20 through the explosion relief channel 102, achieving explosion relief by the explosion relief system 2.

[0063] In other examples, such as Figure 4a As shown, the explosion venting bolt 300 may include a bolt 301 and a plate-shaped gasket 303. In this embodiment, the plate-shaped gasket may refer to a sheet-like structure in the form of a straight plate or a flat plate. The plate-shaped gasket 303 may include one or more of metallic and non-metallic materials. Optionally, the plate-shaped gasket 303 may include steel. Or the plate-shaped gasket 303 may include aluminum or iron. Or the plate-shaped gasket 303 may be an epoxy board or a mica board. The explosion venting system 2 may also include a bolt fixing post 304. The bolt fixing post 304 may be provided on the fixing plate 101. The bolt 301 may pass through the plate-shaped gasket 303 and the bottom wall 110A of the explosion venting cover 110 in sequence, and then cooperate with the bolt fixing post 304. This allows the plate-shaped gasket 303 to be fixed on the outer surface of the bottom wall 110A of the explosion venting cover 110. Since the plate-shaped gasket 303 is in a flat or straight plate state. At this time, the surface of the plate-shaped gasket 303 is parallel to the surface of the bottom wall 110A of the explosion relief cover 110.

[0064] In the event of an explosion inside the enclosure 20, the plate-shaped gasket 303 will break under the shear force generated by the explosion vent cover 110 and the bolt 301, causing the explosion vent bolt 300 to fail in its function of fixing the explosion vent cover 110 to the fixing plate 101. Consequently, under the force generated by the explosion inside the enclosure 20, the explosion vent cover 110 will separate from the fixing plate 101. In this situation, if... Figure 1a As shown, the explosion venting system 2 is in the open state. The shock wave or flame generated by the explosion inside the housing 20 can be released to the outside of the housing 20 through the explosion venting channel 102, thus realizing the explosion venting system 2.

[0065] Optionally, when the explosion vent cover 110 is installed on the explosion vent channel 102, the bolt fixing post 304 can abut against the explosion vent cover 110. The bolt fixing post 304 can enhance the supporting force at the contact point between the plate-shaped gasket 303 and the explosion vent cover 110. When abnormal loads are applied to the plate-shaped gasket 303 outside the enclosure 20, the force generated by the abnormal load can be transferred to the bolt fixing post 304, which can prevent the plate-shaped gasket 303 from failing due to abnormal loads outside the enclosure 20.

[0066] It is understood that the plate-shaped gasket 303 in this example differs from the aforementioned arc-shaped gasket 302. The plate-shaped gasket 303 is subjected to shear force generated by the explosion vent cover 110 and the bolt 301, causing it to fracture. The shape of the fractured plate-shaped gasket 303 is related to the head shape of the bolt 301. For example, the head shape of the bolt 301 can be hexagonal. Figure 4b The diagram shows the shape of the plate gasket 303 before and after explosion venting. After explosion venting, the outline of the broken portion of the plate gasket 303 may be the same as or similar to the shape of the head of the bolt 301.

[0067] In the explosion venting system 2 provided in this embodiment, the explosion venting channel 102, which is disposed on the fixing plate 101, extends outward from the housing 20. The explosion venting cover 110, placed over the explosion venting channel 102, isolates the explosion venting channel 102 from the outside of the housing 20. Furthermore, the explosion venting channel 102, disposed on the fixing plate 101 and extending outward from the housing 20, prevents liquid from entering the housing 20 through the opening 20B, reducing the risk of liquid entering the housing. In some application scenarios, the explosion venting system 2 provided in this embodiment can prevent rainwater from directly entering the housing 20, or can prevent water accumulated on the outer wall 20A of the housing 20 from entering the housing 20. Additionally, the fixing plate 101 in the explosion venting system 2 provided in this embodiment can be flexibly installed on the outer wall of the housing 20, reducing the installation complexity of the explosion venting system 2, thus simplifying installation and having a wide range of applications.

[0068] In one possible design, based on the explosion venting system 2 provided in any of the above embodiments, the explosion venting system 2 provided in this application embodiment may further include a first blocking structure. Figure 5 Example shown Figure 1b The explosion venting system 2 is shown in a cross-sectional view along the AA direction. A first blocking structure 401 can be disposed on the explosion venting channel 102. The first blocking structure 401 can be disposed at the end of the explosion venting channel 102 away from the fixing plate 101, i.e., the second end of the aforementioned explosion venting channel 102, and is disposed on the outer peripheral wall of the explosion venting channel 102. The first blocking structure 401 can be a plate-like structure. The first surface of the first blocking structure 401 faces the explosion venting cover 110, and the second surface of the first blocking structure 401 faces the fixing plate 101.

[0069] In scenarios where the explosion vent cover 110 is subjected to abnormal loads, such as snow or foreign objects, the first blocking structure 401 can support the explosion vent cover 110. Therefore, in this example, the first blocking structure 401 can increase the load-bearing capacity or support capacity of the explosion vent cover 110, eliminating the need for additional abnormal load protection structures.

[0070] Understandable, Figure 5 The explosion vent cover 110 is shown passing through Figure 4a The explosion vent bolts shown are fixed to the mounting plate 101, but this is only an example and does not constitute a specific limitation on the way the explosion vent cover 110 is fixed to the mounting plate 101. The explosion vent cover 110 can also be fixed to the mounting plate 101 in other ways. For example, the explosion vent cover 110 can be fixed to the mounting plate 101 by... Figure 3a The explosion vent bolt 300 shown is fixed to the fixing plate 101.

[0071] In some applications, when the explosion vent cover 110 is fixed to the fixing plate 101 by the explosion vent bolt 300, the explosion vent bolt 300 can avoid the first blocking structure 401. This design can prevent the risk of liquid seeping in from the explosion vent bolt 300.

[0072] Please see again. Figure 5The explosion venting cover 110 may include a bottom wall 110A and a side wall 110B. In this embodiment, the outer surface of the bottom wall 110A faces the inner surface, wherein the inner surface of the bottom wall 110A faces the explosion venting channel 102. The outer surface of the side wall 110B faces the inner surface, wherein the inner surface of the side wall 110B faces the explosion venting channel 102. Optionally, the explosion venting system 2 may further include a second blocking structure 402. The second blocking structure 402 may be disposed on the inner surface of the side wall 110B of the explosion venting cover 110. In other words, the second blocking structure 402 may be disposed on the side wall 110B of the explosion venting cover 110, and located on the side of the side wall 110B facing the explosion venting channel 102. The second blocking structure 402 may be a plate-like structure or a plate-like shape. The first surface of the second blocking structure 402 faces the bottom wall 110A of the explosion venting cover 110, and the second surface of the second blocking structure 402 faces the fixing plate 101. The first surface of the second blocking structure 402 is opposite to the second surface of the second blocking structure 402. Optionally, the shape of the bottom wall 110A can be, but is not limited to, rectangular, circular, etc.

[0073] In some application scenarios, where the internal temperature of the enclosure 20 is higher than that of the external temperature, water vapor in the air can easily condense into water droplets on the explosion relief cover 110. A second blocking structure 402 is provided on the side wall 110B of the explosion relief cover 110, which can improve the sealing effect of the explosion relief system 2 and prevent liquid from entering the interior of the enclosure 20.

[0074] In one possible design, Figure 6 Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. Based on the explosion venting system 2 provided in any of the above embodiments, the explosion venting system 2 may further include a first seal 501. The first seal 501 can be used to seal the gap between the first blocking structure 401 and the explosion venting cover 110, thereby preventing liquid from entering the interior of the housing 20 through the gap between the first blocking structure 401 and the explosion venting cover 110. Specifically, the first seal 501 can be used to seal the gap between the first surface of the first blocking structure 401 and the bottom wall 110A of the explosion venting cover 110.

[0075] Optionally, the first seal 501 can also be used to seal the gap between the inner wall of the explosion relief channel 102 and the bottom wall 110A of the explosion relief cover 110. In some scenarios, the first seal 501 includes an elastic material. For example, the first seal 501 can be a sealing strip. Please refer to... Figure 6The sealing strip can be wrapped around the end of the explosion venting channel 102 near the explosion venting cover 110. When the explosion venting cover 110 is placed on the explosion venting channel 102, the explosion venting cover 110 presses against the sealing strip, applying pressure to the sealing strip to seal the gap between the explosion venting cover 110 and the explosion venting channel 102. Optionally, to ensure an interaction force between the explosion venting cover 110 and the sealing strip and to prevent the sealing strip from failing to seal the gap between the explosion venting channel 102 and the explosion venting cover 110, the friction coefficient of the surface of the bolt 301 in the explosion venting bolt 300 can be increased. This improves the fixing effect of the explosion venting bolt 300 in fixing the explosion venting cover 110 to the fixing plate 101. It allows the explosion venting cover 110 to apply pressure to the sealing strip more stably, ensuring the function of the sealing strip. In some examples, the surface of the bolt 301 can be coated with thread-locking adhesive or sprayed with anti-loosening powder to increase the friction coefficient of the bolt 301.

[0076] In one possible design, Figure 7 Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. Based on any of the above embodiments, the explosion venting system 2, such as... Figure 7 As shown, the explosion venting system 2 may further include a first heat insulation element 601. The first heat insulation element 601 may be disposed on the bottom wall 110A of the explosion venting cover 110. The first heat insulation element 601 is disposed on the side of the bottom wall 110A facing the explosion venting channel 102, that is, on the inner surface of the bottom wall 110A. The first heat insulation element 601 may have heat insulation capabilities. Optionally, the first heat insulation element 601 may also have fire resistance capabilities. In this embodiment, the inner surface of the bottom wall 110A faces the explosion venting channel 102, and the outer surface of the bottom wall 110A faces away from the explosion venting channel 102.

[0077] The first heat insulation element 601 is disposed on the inner surface of the bottom wall 110A. The projection of the first heat insulation element 601 on the bottom wall 110A lies within the outline of the projection of the explosion venting channel 102 on the bottom wall 110A. In scenarios where the explosion venting system 2 is disposed on the top wall of the enclosure 20, the first heat insulation element 601 can prevent water droplets from condensing on the bottom wall 110A of the explosion venting cover 110, thus avoiding affecting the safe operation of the internal components of the enclosure 20. In some examples, the first heat insulation element 601 can be thermal insulation cotton. Optionally, the first heat insulation element can be rock wool or polyurethane insulation materials.

[0078] Optionally, when the explosion vent cover 110 is placed on the explosion vent channel 102, the first heat insulation member 601 can extend into or be embedded in the explosion vent channel 102. In other words, the projection of the first heat insulation member 601 on the side wall 110B overlaps with the projection of the explosion vent channel 102 on the side wall 110B. In some possible cases, the first heat insulation member 601 can extend into the explosion vent channel 102, and the aforementioned first sealing member 501 is provided in the explosion vent system 2. This design can prevent thermal bridging in the explosion vent system 2.

[0079] Optionally, the explosion venting system 2 may also include a second seal 502. See also... Figure 7 The second seal 502 is disposed between the fixed plate 101 and the outer wall of the housing 20 to seal the gap between the fixed plate 101 and the outer wall of the housing 20, preventing liquid from entering the interior of the housing 20 through the gap between the fixed plate 101 and the outer wall of the housing 20. The second seal 502 may include a sealing material, such as sealant or a sealing strip. Optionally, the explosion relief system 2 may also include a sealing limiter 503, which can indicate the position of the second seal 502, facilitating installation by the installer. In some scenarios, the sealing limiter 503 may be made of a non-elastic material to prevent the second seal 502 from being over-compressed and causing it to fail.

[0080] In one possible design, Figure 8 Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. Based on any of the above embodiments, the explosion venting system 2, such as... Figure 8 As shown, the explosion venting system 2 may further include a second heat insulation element 602 and a moisture-proof cover 603. The second heat insulation element 602 may be disposed on the outer surface of the bottom wall 110A of the explosion venting cover 110. The second heat insulation element 602 may be laid on the outer surface of the bottom wall 110A of the explosion venting cover 110, so that the second heat insulation element 602 covers the outer surface of the bottom wall 110A. The second heat insulation element 602 may be provided with small holes to avoid the explosion venting bolt 300, so as not to affect the function of the explosion venting bolt 300.

[0081] The second heat insulation component 602 can be used for thermal insulation. Optionally, the second heat insulation component 602 can have one or more of the following: heat insulation capability and fire resistance capability. For example, the second heat insulation component 602 can be fire-resistant heat insulation cotton, such as rock wool. A moisture-proof cover 603 is placed over the second heat insulation component 602 to prevent the second heat insulation component 602 from getting damp, which would affect its heat insulation and fire resistance performance. In this design, the second heat insulation component 602 can prevent water droplets from condensing on the bottom wall 110A of the explosion relief cover 110, and can also improve the fire resistance capability of the explosion relief system 2.

[0082] In one possible design, based on the explosion venting system 2 provided in any of the above embodiments, the explosion venting system 2 may further include a status detection component. The status detection component can be used to detect the status of the explosion venting system 2, such as detecting whether the explosion venting system 2 is in an open or closed state. Specifically, the status detection component can be used to detect whether the explosion venting cover 110 is covering the explosion venting channel 102. Wherein, if the explosion venting cover 110 is covering the explosion venting channel 102, the explosion venting system 2 is in a closed state. If the explosion venting cover 110 is not covering the explosion venting channel 102, the explosion venting system 2 is in an open state. The function of the status detection component can be implemented through components such as limit switches and sensors. In practical application scenarios, the explosion venting system 2 is usually in an open state after an explosion occurs. Before an explosion occurs, the explosion venting system 2 is in a closed state.

[0083] In one possible implementation, the function of the status detection component in detecting whether the explosion relief cover 110 is affixed to the explosion relief channel 102 can be achieved using a limit switch. In some examples, Figure 9 Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. Based on any of the above embodiments, the explosion venting system 2, such as... Figure 9 As shown, the status detection component may include a limit switch 801. The limit switch 801 generally includes a contact terminal 801A and a fixed terminal 801B. The contact terminal 801A may also be referred to as a contact.

[0084] In some examples, the contact terminal 801A of the limit switch 801 is used to contact or abut against the explosion vent cover 110. Optionally, such as... Figure 9 As shown, the fixed end 801B of the limit switch 801 is located on the inner wall of the explosion relief channel 102. Alternatively, the fixed end 801B of the limit switch 801 can be located on the outer wall 20A of the housing 20 near the opening 20B.

[0085] When the explosion vent cover 110 is placed on the explosion venting channel 102, the contact terminal 801A of the limit switch 801 can contact or abut against the explosion vent cover 110. When the explosion vent cover 110 is separated from the explosion venting channel 102, the contact terminal 801A of the limit switch 801 separates from the explosion vent cover 110. The limit switch 801 can detect whether the explosion vent cover 110 is placed on the explosion venting channel 102 by detecting whether its own contact terminal 801A is in contact with the explosion vent cover 110.

[0086] Limit switch 801 can send signals to the management device to indicate the status of the management device or the explosion relief system 2. For example, if the contact end 801A of limit switch 801 separates from the bottom wall 110A of the explosion relief cover 110, limit switch 801 can send a first indication signal, indicating that the explosion relief cover 110 is not covering the explosion relief channel 102, i.e., the explosion relief system 2 is in the open state. Alternatively, if the contact end 801A of limit switch 801 is not separated from the bottom wall 110A of the explosion relief cover 110, i.e., the contact end 801A of limit switch 801 is in contact with the bottom wall 110A of the explosion relief cover 110, limit switch 801 can send a second indication signal, indicating that the explosion relief cover 110 is covering the explosion relief channel 102, i.e., the explosion relief system 2 is in the closed state. Optionally, limit switch 801 can periodically send the aforementioned first or second indication signal to the management device.

[0087] In other examples, Figure 10 Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. (See attached image.) Figure 10 As shown, the status detection component may include a limit switch 801. The contact end 801A of the limit switch 801 is used to contact or abut against the inner wall of the explosion relief channel 102. Optionally, the fixed end 801B of the limit switch 801 is disposed on the inner surface of the bottom wall 110A of the explosion relief cover 110. Alternatively, the fixed end 801B of the limit switch 801 is disposed on the first heat insulation member 601.

[0088] When the explosion vent cover 110 is placed on the explosion vent channel 102, the contact end 801A of the limit switch 801 can contact or abut against the inner wall of the explosion vent channel 102. When the explosion vent cover 110 is separated from the explosion vent channel 102, the contact end 801A of the limit switch 801 separates from the inner wall of the explosion vent channel 102. The limit switch 801 can detect whether the explosion vent cover 110 is placed on the explosion vent channel 102 by detecting whether its own contact end 801A is in contact with the inner wall of the explosion vent channel 102.

[0089] Limit switch 801 can send signals to the management device to manage the status of the device or the explosion relief system 2. For example, if the contact end 801A of limit switch 801 separates from the inner wall of the explosion relief channel 102, limit switch 801 can send the aforementioned first indication signal. Alternatively, if the contact end 801A of limit switch 801 is not separated from the inner wall of the explosion relief channel 102, that is, if the contact end 801A of limit switch 801 is in contact with the inner wall of the explosion relief channel 102, limit switch 801 can send the aforementioned second indication signal. Optionally, limit switch 801 can periodically send the aforementioned first indication signal or second indication signal to the management device.

[0090] In one possible design, based on the explosion venting system 2 provided in any of the above embodiments, Figure 11 An exemplary side view of an explosion venting system 2 in the open state is shown. Figure 11 This illustration only shows one relative positional relationship between the explosion venting cover 110 and the fixing plate 101 when the explosion venting system 2 is in the open state. This is merely an example and does not constitute a specific limitation on the relative positional relationship between the explosion venting cover 110 and the fixing plate 101 when the explosion venting system 2 is in the open state. It is understood that the explosion venting system 2 can also be in the open state when the explosion venting cover 110 and the fixing plate 101 have other relative positional relationships, and this application does not make specific limitations in this regard.

[0091] To prevent the explosion vent cover 110 from flying off the enclosure during explosion venting, the explosion venting system 2 may also include a connecting assembly 901. The connecting assembly 901 connects the explosion vent cover 110 and the fixing plate 101. In some examples, the connecting assembly 901 can be a rope, or explosion-proof rope. One end of the explosion-proof rope is attached to the outer wall of the explosion vent cover 110, and the other end is attached to the fixing plate 101. During explosion venting, the explosion vent cover 110 can be connected to the fixing plate 101 under the constraint of the explosion-proof rope. Alternatively, the connecting assembly 901 can be a telescopic rod, a linkage slider mechanism, or a multi-link mechanism. One end of the telescopic rod is attached to the inner surface of the bottom wall of the explosion vent cover 110, and the other end is attached to the fixing plate 101. During explosion venting, the explosion vent cover 110 can be connected to the fixing plate 101 under the constraint of the telescopic rod, linkage slider mechanism, or multi-link mechanism.

[0092] In other examples, the connecting component 901 can be a hinged component. In this embodiment, the first side of the explosion vent cover 110 can be the side where the explosion vent bolt 300 is located. Alternatively, the first side of the explosion vent cover 110 is fixed to the fixing plate 101 by the explosion vent bolt 300. The second side of the explosion vent cover 110 can be connected to the fixing plate 101 via a hinged component. The second side of the explosion vent cover 110 is opposite to or adjacent to the first side of the explosion vent cover 110. It should be understood that the second side of the explosion vent cover 110 is not the same as the first side of the explosion vent cover 110. The second side of the explosion vent cover 110 can be connected to the fixing plate 101 via a hinged component. In other words, the explosion vent cover 110 can be hinged to the fixing plate 101 via a hinged component; wherein, the hinged component is disposed on the second side of the explosion vent cover 110; and the hinged component is located between the outer wall of the explosion vent channel 102 and the side wall 110B of the explosion vent cover 110, and between the bottom wall 110A of the explosion vent cover 110 and the fixing plate 101.

[0093] In some applications, the bottom wall of the explosion vent cover 110 can have a rectangular outline. The circumferential sidewalls 110b of the bottom wall 110A of the explosion vent cover 110 can be composed of a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall. The first sidewall is opposite to the second sidewall, and the third sidewall is opposite to the fourth sidewall. Please refer to [reference needed]. Figure 12a The second sidewall B2 and the third sidewall B3 are shown. Figure 12a The explosion vent cover 110 shown in the figure has its first sidewall located on one side, which can be considered the first side of the explosion vent cover 110. An explosion vent bolt 300 is provided on the first side of the explosion vent cover 110. Optionally, the side containing the second sidewall B2 of the explosion vent cover 110 can be considered the second side of the explosion vent cover 110. Alternatively, the side containing the third sidewall B3 of the explosion vent cover 110 can be considered the second side of the explosion vent cover 110. Or, the side containing the fourth sidewall of the explosion vent cover 110 can be considered the second side of the explosion vent cover 110.

[0094] The following description uses the second side of the explosion vent cover 110, where the second sidewall B2 is located, as an example. Figure 12b Example shown Figure 1b A cross-sectional view of the explosion venting system 2 in the AA direction. In this example, as shown... Figure 12b As shown, a hinge assembly can be provided on the second side of the explosion relief cover 110, between the inner surface of the bottom wall 110A of the explosion relief cover 110 and the first surface of the second blocking structure 402, and between the outer wall of the explosion relief channel 102 and the inner surface of the side wall 110B of the explosion relief cover 110. The explosion relief cover 110 is rotatably connected to the fixing plate 101 via the hinge assembly. The hinge assembly may include structures such as an inner hinge and a pivot. This application does not impose excessive limitations on this. In this design, when the explosion relief system 2 experiences an explosion, the explosion relief cover 110 separates from the explosion relief channel 102. Furthermore, the hinge assembly can restrict the position of the explosion relief cover 110, preventing the explosion relief cover 110 from flying off the housing 20.

[0095] Optionally, the second side of the explosion relief cover 110 is hinged to the fixed plate 101 via a hinge assembly, and the explosion relief system 2 may also include an angle limiting assembly. Figure 13An exemplary side view of an explosion venting system 2 in an open state is shown. The explosion venting system 2 is mounted on the side wall of a housing 20. The second side of the explosion venting cover 110 is the side of the cover 110 closest to the bottom wall of the housing 20. The second side of the explosion venting cover 110 can be hinged to the fixing plate 101 via the aforementioned hinge assembly. An angle limiting assembly 902 is disposed on the third side of the explosion venting cover 110. The third side of the explosion venting cover 110 can be adjacent to or opposite to the second side. One end of the angle limiting assembly 902 is fixed to the explosion venting cover 110, and the other end is fixed to the fixing plate 101. The angle limiting assembly 902 is used to limit the angle formed between the explosion venting cover 110 and the fixing plate 101 when an explosion occurs in the housing 20, wherein the angle is less than 90°. Optionally, the angle limiting assembly 902 can be an explosion-proof rope. Alternatively, the angle limiting assembly 902 can be a telescopic rod, a linkage slider mechanism, or a multi-link mechanism.

[0096] In this design, when the explosion venting system 2 vents an explosion, the second side of the explosion vent cover 110 can be fixed to the fixed plate 101 via a hinge assembly. The other sides of the explosion vent cover 110, excluding the second side, are away from the fixed plate. The angle limiting assembly 902 can limit the angle formed between the explosion vent cover 110 and the fixed plate 101, ensuring that this angle is a preset angle. This angle is less than 90°, so that when an explosion occurs inside the enclosure 20, the direction of the explosion is opposite to the direction of gravity. This prevents injury to personnel or objects on the side of the enclosure 20 from the flames and shock waves generated during the explosion.

[0097] Figure 13 The diagram only shows one angle between the explosion vent cover 110 and the fixing plate 101 when the explosion vent system 2 is in the open state. This is merely an example and does not represent a specific limitation on the angle between the explosion vent cover 110 and the fixing plate 101 when the explosion vent system 2 is in the open state. It is understood that the explosion vent system 2 can also be in the open state when the angle between the explosion vent cover 110 and the fixing plate 101 is other than that, and this application does not specifically limit this.

[0098] In one possible implementation, the top wall of the enclosure 20 is used to install the explosion venting system 2. In some applications, the explosion venting cabinet 1 may include multiple explosion venting systems 2. Figure 14 This is a front view of a cabinet used for explosion venting. Figure 15 This is a top view of a pressure relief cabinet. Optionally, at least one cooling device 3 may be installed on one side wall of the enclosure 20 for heat dissipation inside the enclosure 20. Optionally, the pressure relief cabinet 1 may also include a base 4.

[0099] In one possible implementation, Figure 16 This is a front view of a cabinet used for explosion venting. One side wall of the enclosure 20 is used to install the explosion venting system 2. Optionally, the other side wall can be used to install a refrigeration unit 3. Figure 17 The diagram illustrates an explosion venting system 2 in an open state. In the explosion venting system 2, the second side of the explosion venting cover 110 is hinged to the fixing plate 101 via a hinge assembly. The third side of the explosion venting cover 110 is connected to the fixing plate 101 via an angle limiting assembly 902.

[0100] Additionally, this application also provides an energy storage system, which may include the explosion-proof cabinet provided in any of the foregoing embodiments, and one or more battery packs. The one or more battery packs may be housed inside the cabinet.

[0101] Alternatively, the energy storage system may include a housing, an explosion venting system provided in any of the foregoing embodiments, and one or more battery packs. The explosion venting system may be located on the top or side wall of the housing.

[0102] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An explosion venting system, characterized in that, The explosion venting system is applied to the enclosure (20) for explosion venting, and includes: A fixing plate (101) is fixed to the outer wall (20A) of the box (20), the outer wall (20A) being the top wall of the box (20) or any side wall (110B) of the box (20). An explosion venting channel (102) is provided on the surface of the fixing plate (101) away from the outer wall (20A), and the explosion venting channel (102) communicates with an opening on the outer wall (20A); An explosion relief cover (110) is installed on the explosion relief channel (102). The explosion relief cover (110) is opposite to the fixing plate (101) and is fixed to the fixing plate (101) by explosion relief bolts (300). A first blocking structure (401) is disposed on the outer peripheral wall of the explosion relief channel (102) and at one end away from the fixed plate (101). The first surface of the first blocking structure (401) faces the explosion relief cover (110), and the second surface faces the fixed plate (101). The first surface and the second surface are opposite to each other. The explosion relief bolt (300) avoids the first blocking structure (401). The second blocking structure (402) is disposed on the surface of the side wall (110B) of the explosion relief cover (110) facing the explosion relief channel (102), wherein one surface of the second blocking structure (402) faces the explosion relief cover (110) and the other surface faces the fixing plate (101), and the second blocking structure (402) avoids the explosion relief bolt (300).

2. The explosion venting system as described in claim 1, characterized in that, The explosion relief system also includes a first seal (501) for sealing the gap between the first surface of the first blocking structure (401) and the explosion relief cover (110).

3. The explosion venting system as described in claim 1 or 2, characterized in that, The explosion relief cover (110) includes a bottom wall (110A) and a side wall (110B). The bottom wall (110A) covers the explosion relief channel (102), and the side wall (110B) is opposite to the explosion relief channel (102).

4. The explosion venting system as described in claim 3, characterized in that, The explosion relief system also includes a status detection component; The status detection component is used to detect whether the explosion relief cover (110) covers the explosion relief channel (102).

5. The explosion venting system as described in claim 4, characterized in that, The status detection component includes a limit switch (801); When the contact end (801A) of the limit switch (801) is in contact with the bottom wall (110A) of the explosion relief cover (110); if the contact end (801A) of the limit switch (801) is separated from the bottom wall (110A) of the explosion relief cover (110), a first indication signal is sent; or, if the contact end (801A) of the limit switch (801) is in contact with the bottom wall (110A) of the explosion relief cover (110), a second indication signal is sent; wherein, the first indication signal indicates that the explosion relief cover (110) is not covering the explosion relief channel (102), and the second indication signal indicates that the explosion relief cover (110) is covering the explosion relief channel (102); or, When the contact end (801A) of the limit switch (801) is in contact with the inner wall of the explosion venting channel (102); if the contact end (801A) of the limit switch (801) separates from the inner wall of the explosion venting channel (102), the first indication signal is sent; or if the contact end (801A) of the limit switch (801) is in contact with the inner wall of the explosion venting channel (102), the second indication signal is sent.

6. The explosion venting system as described in claim 3, characterized in that, The explosion relief system further includes: bolt 301 fixing post 304, which is set on the fixing plate (101) and abuts against the explosion relief cover (110); The explosion relief bolt (300) includes: A gasket is disposed on the outer surface of the bottom wall (110A) of the explosion relief cover (110), and the surface of the gasket is parallel to the outer surface of the bottom wall (110A) of the explosion relief cover (110). Bolt 301 penetrates the gasket and the bottom wall (110A) of the explosion relief cover (110), and is connected to the bolt 301 fixing post 304.

7. The explosion venting system as described in claim 3, characterized in that, The explosion relief system also includes: A first heat insulation element (601) is disposed on the bottom wall (110A) and on the inner surface of the bottom wall (110A); wherein, when the explosion vent cover (110) is disposed on the explosion vent channel (102), the projection of the first heat insulation element (601) on the bottom wall (110A) is located in the outline of the projection of the explosion vent channel (102) on the bottom wall (110A).

8. The explosion venting system as described in claim 3, characterized in that, The explosion relief system also includes: The second heat insulation element (602) is disposed on the bottom wall (110A) and on the outer surface of the bottom wall (110A); A moisture-proof cover (603) is placed over the second heat insulation component (602).

9. The explosion venting system as described in claim 3, characterized in that, The explosion relief system also includes a connecting component (901), through which the explosion relief cover (110) is connected to the fixing plate (101). The connecting component (901) is used to prevent the explosion relief cover (110) from flying off the box (20) when an explosion occurs in the box (20).

10. The explosion venting system as described in claim 9, characterized in that, The connecting assembly (901) is a hinged assembly; the explosion relief bolt (300) is located on the first side of the explosion relief cover (110); The explosion relief cover (110) is hinged to the fixing plate (101) via the hinge assembly; the hinge assembly is disposed on the second side of the explosion relief cover (110), the second side of the explosion relief cover (110) is opposite to or adjacent to the first side of the explosion relief cover (110); and the hinge assembly is located between the outer wall (20A) of the explosion relief channel (102) and the side wall (110B), and between the bottom wall (110A) and the fixing plate (101).

11. The explosion venting system as described in claim 10, characterized in that, The outer wall (20A) is the side wall (110B) of the enclosure (20); the second side of the explosion relief cover (110) is the side of the explosion relief cover (110) close to the bottom wall (110A) of the enclosure (20); The explosion relief system also includes: An angle limiting component (902) is used to limit the angle formed between the explosion relief cover (110) and the fixing plate (101) when the enclosure (20) experiences an explosion, wherein the angle is less than 90°; wherein the angle limiting component (902) is disposed on the third side of the explosion relief cover (110), wherein the third side of the explosion relief cover (110) is adjacent to or opposite to the second side of the explosion relief cover (110), and one end of the angle limiting component (902) is fixed to the explosion relief cover (110), and the other end of the angle limiting component (902) is fixed to the fixing plate (101).

12. A cabinet for explosion venting, characterized in that, include: Box (20); At least one explosion venting system as described in any one of claims 1-11, wherein the explosion venting system is disposed on the outer wall (20A) of the enclosure (20), wherein the outer wall (20A) is the top wall or side wall (110B) of the enclosure (20).

13. The cabinet as described in claim 12, characterized in that, At least one energy storage device is installed inside the box (20).

14. An energy storage system, characterized in that, It includes one or more battery packs and a cabinet as described in claim 12 or 13; the one or more battery packs are disposed inside the cabinet.

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