A pressure relief structure and switch cabinet

Abstract

The utility model belongs to electrical equipment technical field discloses a kind of pressure relief structure and switch cabinet, pressure relief structure includes frame, first pressure relief cover and second pressure relief cover, frame has first pressure relief passage;First pressure relief cover has opposite first edge portion and second edge portion, first edge portion is hinged along the first side of frame in first direction;Second pressure relief cover has opposite third edge portion and fourth edge portion, third edge portion is hinged along the second side of frame in first direction.The utility model provides pressure relief structure, when first pressure relief cover and second pressure relief cover are all buckled in frame, the abutment of second edge portion and fourth edge portion, can make first pressure relief cover and second pressure relief cover keep in the state of the air outlet of first pressure relief passage is shielded, when high-pressure gas flows through first pressure relief passage, because the interaction between second edge portion and fourth edge portion is smaller, it is beneficial to high-pressure gas to rush open first pressure relief cover and second pressure relief cover, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a pressure relief structure and switch cabinet. Background Technology

[0002] The main function of switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes of a power system. Switchgear typically includes a pressure relief port. When the switchgear is opened or closed, especially during circuit faults, the resulting electric arc generates high-pressure gas inside the switchgear. This high-pressure gas is discharged through the pressure relief port to ensure the safe operation of the switchgear.

[0003] In related technologies, switchgear typically has a pressure relief cover at the pressure relief port. One side of the cover is securely fixed with bolts or hinges, while the other side is secured with nylon bolts. When high-pressure gas is generated, the nylon bolts should break open to open the pressure relief cover. However, in some cases, the nylon bolts may not break open, meaning the pressure relief cover cannot be opened, and the high-pressure gas cannot be discharged quickly and immediately, posing a safety hazard. Utility Model Content

[0004] One objective of this invention is to provide a pressure relief structure to solve the problem that high-temperature and high-pressure gases cannot open the pressure relief cover.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A pressure relief structure is provided, comprising:

[0007] The frame has a first pressure relief channel;

[0008] A first pressure relief cover has a first side and a second side facing each other, the first side being hinged to a first side of the frame along a first direction;

[0009] The second pressure relief cover has opposing third and fourth sides, the third side being hinged to the second side of the frame along a first direction;

[0010] The first pressure relief cover and the second pressure relief cover are both fastened to the frame. The first pressure relief cover and the second pressure relief cover block the air outlet of the first pressure relief channel, and the second side and the fourth side abut against each other.

[0011] Optionally, the second side is provided with a bent first folded edge facing into the first pressure relief channel, and the fourth side is provided with a bent second folded edge facing into the first pressure relief channel;

[0012] The first pressure relief cover and the second pressure relief cover are both fastened to the frame, and the first folded edge abuts against the second folded edge.

[0013] Optionally, the first folded edge includes a first plate portion and a second plate portion arranged at an angle, and the second folded edge includes a third plate portion and a fourth plate portion arranged at an angle;

[0014] The first pressure relief cover and the second pressure relief cover are both fastened to the frame, and the first bending angle between the first plate and the second plate abuts against the second bending angle between the third plate and the fourth plate.

[0015] Optionally, the first pressure relief cover includes a first sealing plate and a first baffle disposed at both ends of the first sealing plate along a second direction, the first sealing plate having opposing first edges and second edges;

[0016] The second pressure relief cover includes a second sealing plate and second baffles disposed at both ends of the second sealing plate along a second direction, the second sealing plate having opposing third and fourth sides;

[0017] The first pressure relief cover and the second pressure relief cover are both fastened to the frame, and the first sealing plate and the second sealing plate block the air outlet of the first pressure relief channel;

[0018] Both the first pressure relief cover and the second pressure relief cover are rotated to the open angle, and a second pressure relief channel is formed between the first sealing plate, the first baffle, the second sealing plate and the second baffle, which communicates with the first pressure relief channel.

[0019] Optionally, along the second direction, the first baffle and the second baffle at the same end are staggered.

[0020] Optionally, a first clearance plate is provided between each of the two first baffles and the first sealing plate. The first sealing plate, the first clearance plate and the first baffle are bent in sequence, and the bending direction of the first clearance plate relative to the first sealing plate is opposite to the bending direction of the first baffle relative to the first clearance plate.

[0021] Alternatively, a second clearance plate is provided between each of the two second baffles and the second sealing plate, and the second sealing plate, the second clearance plate and the second baffle are bent in sequence, and the bending direction of the second clearance plate relative to the second sealing plate is opposite to the bending direction of the second baffle relative to the second clearance plate;

[0022] Alternatively, a first clearance plate is provided between one of the two first baffles and the first sealing plate, and a second clearance plate is provided between one of the two second baffles and the second sealing plate. Along the second direction, the first baffle connected to the first clearance plate and the second baffle connected to the second clearance plate are not at the same end. The first sealing plate, the first clearance plate, and the first baffle are bent sequentially, and the bending direction of the first clearance plate relative to the first sealing plate is opposite to the bending direction of the first baffle relative to the first clearance plate. The second sealing plate, the second clearance plate, and the second baffle are bent sequentially, and the bending direction of the second clearance plate relative to the second sealing plate is opposite to the bending direction of the second baffle relative to the second clearance plate.

[0023] Optionally, the first edge is bent to form a first limiting flange, which can abut against the frame and limit the opening angle of the first pressure relief cover;

[0024] The third side is bent to form a second limiting flange, which can abut against the frame and limit the opening angle of the second pressure relief cover.

[0025] Optionally, the frame includes multiple enclosures, and the first pressure relief channel is formed between the enclosures. At least some of the enclosures are provided with a first pressure relief hole, and the outlet of the first pressure relief hole is opposite to the outlet of the pressure relief channel.

[0026] Optionally, the frame further includes a base plate, which is connected to the enclosure and blocks the air inlet of the first pressure relief channel. The base plate is provided with a plurality of second pressure relief holes.

[0027] Another objective of this utility model is to provide a switch cabinet, including a cabinet body and the aforementioned pressure relief structure. The top of the cabinet body is provided with a pressure relief port, and the pressure relief structure is disposed on the pressure relief port of the cabinet body. The air inlet of the first pressure relief channel of the pressure relief structure is connected to the pressure relief port.

[0028] Beneficial effects: The pressure relief structure provided by this utility model, when both the first pressure relief cover and the second pressure relief cover are rotated to be fastened to the frame, the abutment of the second side and the fourth side can keep the first pressure relief cover and the second pressure relief cover in a state of blocking the air outlet of the first pressure relief channel. When high-pressure gas flows through the first pressure relief channel, the interaction force between the second side and the fourth side is small, which helps to increase the probability of high-pressure gas breaking through the first pressure relief cover and the second pressure relief cover, and facilitates the rapid discharge of high-pressure gas from the air outlet of the first pressure relief channel, which is safe and reliable.

[0029] The switch cabinet provided by this utility model, through the setting of the pressure relief structure, facilitates the rapid discharge of high-pressure gas, ensuring safety and reliability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the pressure relief structure when the pressure relief cover provided by this utility model is fastened to the frame. Figure 1 ;

[0031] Figure 2 This utility model provides Figure 1 A partial sectional view at point A in the diagram;

[0032] Figure 3 This is a schematic diagram of the pressure relief structure when the pressure relief cover provided by this utility model is fastened to the frame. Figure 2 ;

[0033] Figure 4 This is a schematic diagram of the pressure relief structure when the pressure relief cover is opened, provided by this utility model.

[0034] Figure 5 This utility model provides Figure 4 A partial sectional view at point B in the diagram;

[0035] Figure 6 This utility model provides Figure 4 A partial sectional view at point C in the diagram;

[0036] Figure 7 This utility model provides Figure 4 A partial sectional view at point D in the diagram;

[0037] Figure 8 This is a schematic diagram of the pressure relief structure when the pressure relief cover provided by this utility model is fastened to the frame. Figure 3 ;

[0038] Figure 9 This utility model provides Figure 8 Enlarged view of the structure at point E in the image.

[0039] In the picture:

[0040] 100. Frame; 101. First pressure relief channel; 102. Fixed folded edge; 103. Limiting stop edge; 110. Enclosure panel; 111. First pressure relief hole; 112. First enclosure panel; 113. Second enclosure panel; 120. Bottom plate; 121. Second pressure relief hole; 122. Air intake baffle;

[0041] 200. First pressure relief cover; 210. First folded edge; 211. First plate section; 212. Second plate section; 213. First bend angle; 220. First sealing plate; 230. First baffle; 240. First clearance plate; 250. First limiting folded edge;

[0042] 300. Second pressure relief cover; 310. Second folded edge; 311. Third plate section; 312. Fourth plate section; 313. Second bend angle; 320. Second sealing plate; 330. Second baffle; 340. Second clearance plate; 350. Second limiting folded edge;

[0043] 400. Second pressure relief channel;

[0044] 500. Hinges. Detailed Implementation

[0045] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0046] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0049] Reference Figures 1 to 7As shown, this embodiment provides a pressure relief structure, which includes a frame 100, a first pressure relief cover 200, and a second pressure relief cover 300.

[0050] The frame 100 has a first pressure relief channel 101; the first pressure relief cover 200 has opposing first and second sides, the first side being hinged to a first side of the frame 100 along a first direction; the second pressure relief cover 300 has opposing third and fourth sides, the third side being hinged to a second side of the frame 100 along a first direction. Both the first and second pressure relief covers 200 and 300 are fastened to the frame 100, and both cover block the air outlet of the first pressure relief channel 101, with the second and fourth sides abutting against each other.

[0051] Understandably, when both the first pressure relief cover 200 and the second pressure relief cover 300 are rotated to engage with the frame 100, the abutment of the second and fourth sides keeps the first pressure relief cover 200 and the second pressure relief cover 300 in a state that blocks the outlet of the first pressure relief channel 101, thus preventing foreign objects from entering. When high-pressure gas flows through the first pressure relief channel 101, the relatively small interaction force between the second and fourth sides increases the probability that the high-pressure gas will break through the first pressure relief cover 200 and the second pressure relief cover 300, facilitating the rapid discharge of high-pressure gas from the outlet of the first pressure relief channel 101, ensuring safety and reliability.

[0052] In this embodiment, reference is made to Figure 4 As shown, the frame 100 is bent outward from the air inlet of the first pressure relief channel 101 to form a fixed flange 102. The fixed flange 102 can be fitted with bolts to facilitate the installation of the frame 100 on the required housing.

[0053] In this embodiment, reference is made to Figure 1 and Figure 2 As shown, a bent first fold 210 is provided on the second side facing into the first pressure relief channel 101, and a bent second fold 310 is provided on the fourth side facing into the first pressure relief channel 101. The first pressure relief cover 200 and the second pressure relief cover 300 are both fastened to the frame 100. The first fold 210 and the second fold 310 abut against each other, which is conducive to the slight deformation of the first pressure relief cover 200 and the second pressure relief cover 300, making it convenient to fasten the first pressure relief cover 200 and the second pressure relief cover 300 to the frame 100. The direction of the interaction force between the first fold 210 and the second fold 310 may be conducive to keeping the first pressure relief cover 200 and the second pressure relief cover 300 in a state of blocking the air outlet of the first pressure relief channel 101, which helps to reduce the risk of the first pressure relief cover 200 and the second pressure relief cover 300 being accidentally opened, and makes the first pressure relief cover 200 and the second pressure relief cover 300 suitable for being opened by high-pressure gas.

[0054] For example, the first pressure relief cover 200 can be formed by bending sheet metal.

[0055] For example, the second pressure relief cover 300 can be formed by bending sheet metal.

[0056] In one feasible embodiment, the first folded edge 210 includes a first plate portion 211 and a second plate portion 212 arranged at an angle, and the second folded edge 310 includes a third plate portion 311 and a fourth plate portion 312 arranged at an angle; wherein, the first pressure relief cover 200 and the second pressure relief cover 300 are both fastened to the frame 100, and the first bending angle 213 between the first plate portion 211 and the second plate portion 212 abuts against the second bending angle 313 between the third plate portion 311 and the fourth plate portion 312. Understandably, when the first pressure relief cover 200 and the second pressure relief cover 300 are both fastened to the frame 100, and the first bending angle 213 and the second bending angle 313 abut against each other, the first pressure relief cover 200 and the second pressure relief cover 300 will both tend to rotate into the first pressure relief channel 101. The first pressure relief cover 200 and the second pressure relief cover 300 will both form a limit with the frame 100, so that the first pressure relief cover 200 and the second pressure relief cover 300 are kept in the state of blocking the air outlet of the first pressure relief channel 101, which is stable and reliable. This helps to reduce the risk of the first pressure relief cover 200 and the second pressure relief cover 300 being accidentally opened, and makes the first pressure relief cover 200 and the second pressure relief cover 300 suitable for being opened by high-pressure gas.

[0057] In this embodiment, reference is made to Figures 4 to 9 As shown, the first pressure relief cover 200 includes a first sealing plate 220 and first baffles 230 disposed at both ends of the first sealing plate 220 along a second direction. The first sealing plate 220 has opposing first and second sides. The second pressure relief cover 300 includes a second sealing plate 320 and second baffles 330 disposed at both ends of the second sealing plate 320 along a second direction. The second sealing plate 320 has opposing third and fourth sides. Both the first pressure relief cover 200 and the second pressure relief cover 300 are fastened to the frame 100. The first sealing plate 220 and the second sealing plate 320 block the air outlet of the first pressure relief channel 101 to prevent foreign objects from entering. In this design, both the first pressure relief cover 200 and the second pressure relief cover 300 are rotated to the open angle. A second pressure relief channel 400, which is connected to the first pressure relief channel 101, is formed between the first sealing plate 220, the first baffle 230, the second sealing plate 320, and the second baffle 330. The high-pressure gas in the first pressure relief channel 101 is blocked and guided by the first sealing plate 220, the first baffle 230, the second sealing plate 320, and the second baffle 330 and discharged along the extension direction of the second pressure relief channel 400. This helps to reduce the probability of particulate matter being discharged with the high-pressure gas in the pressure relief structure and improves safety.

[0058] For example, the first direction and the second direction are perpendicular to each other. For instance, when the first pressure relief channel 101 is configured as a rectangular channel, the first direction is the width direction of the rectangular channel, and the second direction is the length direction of the rectangular channel.

[0059] For example, the outlet of the first pressure relief channel 101 is set upward, which helps to improve safety.

[0060] For example, the outlet of the second pressure relief channel 400 is set upward, which helps to improve safety.

[0061] For example, the first pressure relief channel 101 may be provided to extend along the height direction of the frame 100. The height direction, the first direction, and the second direction of the frame 100 are perpendicular to each other.

[0062] In one feasible implementation, the frame 100 is bent inward at the air outlet of the first pressure relief channel 101 to form a limiting baffle 103. The limiting baffle 103 can guide the flow of high-pressure gas in the first pressure relief channel 101, which is beneficial for the high-pressure gas to break open the first pressure relief cover 200 and the second pressure relief cover 300.

[0063] In some embodiments, the first pressure relief cover 200 is fastened to the frame 100, and at least one of the first baffle 230 and the first sealing plate 220 abuts against the frame 100 to prevent the first pressure relief cover 200 from continuing to rotate into the first pressure relief channel 101.

[0064] For example, the first pressure relief cover 200 is fastened to the frame 100, and the first sealing plate 220 abuts against the limiting stop 103 to prevent the first pressure relief cover 200 from continuing to rotate into the first pressure relief channel 101.

[0065] In some embodiments, the second pressure relief cover 300 is fastened to the frame 100, and at least one of the second baffle 330 and the second sealing plate 320 abuts against the frame 100 to prevent the second pressure relief cover 300 from continuing to rotate into the first pressure relief channel 101.

[0066] For example, the second pressure relief cover 300 is fastened to the frame 100, and the second sealing plate 320 abuts against the limiting stop 103 to prevent the second pressure relief cover 300 from continuing to rotate into the first pressure relief channel 101. It can be understood that the frame 100 is provided with limiting stops 103 on both sides along the first direction.

[0067] In one feasible implementation, the first baffle 230 and the second baffle 330 at the same end are staggered along the second direction to reduce the probability of interference between the first baffle 230 and the second baffle 330 when the first pressure relief cover 200 and the second pressure relief cover 300 rotate. The first baffle 230 and the second baffle 330 at the same end refer to, along the second direction, the first baffle 230 located at the first end of the first sealing plate 220 and the second baffle 330 located at the first end of the second sealing plate 320, or the first baffle 230 located at the second end of the first sealing plate 220 and the second baffle 330 located at the second end of the second sealing plate 320.

[0068] For example, the first baffle 230 and the second baffle 330 are parallel to each other.

[0069] For example, the first sealing plate 220 and the first baffle 230 are perpendicular to each other.

[0070] For example, the second sealing plate 320 and the second baffle 330 are perpendicular to each other.

[0071] For example, when both the first pressure relief cover 200 and the second pressure relief cover 300 are rotated to the opening angle, the first baffle 230 and the second baffle 330 located at the same end overlap along the second direction, which helps to reduce the probability of particulate matter being discharged between the first baffle 230 and the second baffle 330 with the high-pressure gas, thereby improving safety.

[0072] In some embodiments, a first clearance plate 240 is provided between each of the two first baffles 230 and the first sealing plate 220. The first sealing plate 220, the first clearance plate 240, and the first baffle 230 are bent sequentially, and the bending direction of the first clearance plate 240 relative to the first sealing plate 220 is opposite to the bending direction of the first baffle 230 relative to the first clearance plate 240. It can be understood that the provision of the first clearance plate 240 is beneficial for the misalignment between the first baffle 230 and the second baffle 330, preventing positional interference, and is also beneficial for the first sealing plate 220 to block the air outlet of the first pressure relief channel 101.

[0073] For example, the first sealing plate 220 and the first clearance plate 240 are parallel to each other.

[0074] In some embodiments, a second clearance plate 340 is provided between each of the two second baffles 330 and the second sealing plate 320. The second sealing plate 320, the second clearance plate 340, and the second baffle 330 are bent sequentially, and the bending direction of the second clearance plate 340 relative to the second sealing plate 320 is opposite to the bending direction of the second baffle 330 relative to the second clearance plate 340. It can be understood that the provision of the second clearance plate 340 is beneficial for the misalignment between the first baffle 230 and the second baffle 330, preventing positional interference, and is also beneficial for the second sealing plate 320 to block the air outlet of the first pressure relief channel 101.

[0075] For example, the first sealing plate 220 and the second yielding plate 340 are parallel to each other.

[0076] In some embodiments, such as Figures 4 to 6 As shown, a first clearance plate 240 is provided between one of the two first baffles 230 and the first sealing plate 220, and a second clearance plate 340 is provided between one of the two second baffles 330 and the second sealing plate 320. Furthermore, along the second direction, the first baffle 230 connected to the first clearance plate 240 and the second baffle 330 connected to the second clearance plate 340 are not at the same end. The first baffle 230 and the second baffle 330 not at the same end refer to, along the second direction, the first baffle 230 located at the first end of the first sealing plate 220 and the second baffle 330 located at the second end of the second sealing plate 320, or the first baffle 230 located at the second end of the first sealing plate 220 and the second baffle 330 located at the first end of the second sealing plate 320.

[0077] In some embodiments, the first pressure relief cover 200 and the second pressure relief cover 300 are both fastened to the frame 100, and the first baffle 230 and the second baffle 330 are both located within the first pressure relief channel 101, which helps to improve the compactness of the pressure relief structure.

[0078] In this embodiment, reference is made to Figure 1 As shown, the first side is bent to form a first limiting fold 250. The first limiting fold 250 can abut against the frame 100 and limit the opening angle of the first pressure relief cover 200, which is beneficial to improving the stability of the second pressure relief channel 400 formed between the first sealing plate 220, the first baffle 230, the second sealing plate 320, and the second baffle 330.

[0079] For example, the first pressure relief cover 200 is rotated to be fastened to the frame 100 as a reference, that is, the angle when the first pressure relief cover 200 is fastened to the frame 100 is set to 0°, and the opening angle of the first pressure relief cover 200 is less than or equal to 90°.

[0080] In this embodiment, reference is made to Figure 1 As shown, the third side is bent to form a second limiting fold 350. The second limiting fold 350 can abut against the frame 100 and limit the opening angle of the second pressure relief cover 300, which helps to improve the stability of the second pressure relief channel 400 formed between the first sealing plate 220, the first baffle 230, the second sealing plate 320, and the second baffle 330.

[0081] For example, the second pressure relief cover 300 is rotated to be fastened to the frame 100 as a reference, that is, the angle when the second pressure relief cover 300 is fastened to the frame 100 is set to 0°, and the opening angle of the second pressure relief cover 300 is less than or equal to 90°.

[0082] In this embodiment, reference is made to Figure 4 and Figure 7 As shown, the frame 100 includes multiple enclosures 110, and a first pressure relief channel 101 is formed between the enclosures 110. At least some of the enclosures 110 are provided with first pressure relief holes 111. The outlet of the first pressure relief hole 111 is away from the outlet of the pressure relief channel, which helps to prevent foreign objects from entering the first pressure relief channel 101 through the first pressure relief hole 111 and facilitates the pressure relief of the pressure relief structure.

[0083] For example, the enclosure 110 includes two first enclosures 112 spaced apart along a first direction and two second enclosures 113 spaced apart along a second direction, with a first pressure relief channel 101 formed between the first enclosures 112 and the second enclosures 113.

[0084] For example, both the first enclosure 112 and the second enclosure 113 are provided with a fixed folded edge 102 and a limiting stop edge 103.

[0085] For example, one of the two first enclosure panels 112 is hinged to the first pressure relief cover 200 via a hinge 500, and the other of the two first enclosure panels 112 is hinged to the second pressure relief cover 300 via a hinge 500, facilitating assembly. The hinge 500 can be located on the side of the first enclosure panel 112 and the second enclosure panel 113 outside the first pressure relief channel 101, which helps to block the air outlet of the first pressure relief channel 101 when both the first pressure relief cover 200 and the second pressure relief cover 300 are fastened to the frame 100.

[0086] For example, the first pressure relief cover 200 can be hinged to the corresponding first enclosure 112 via multiple hinges 500 to improve connection stability. For instance, the first pressure relief cover 200 can be hinged to the corresponding first enclosure 112 via three to five hinges 500.

[0087] For example, the second pressure relief cover 300 can be hinged to the corresponding first enclosure 112 via multiple hinges 500 to improve connection stability. For instance, the second pressure relief cover 300 can be hinged to the corresponding first enclosure 112 via three to five hinges 500.

[0088] In one feasible embodiment, the frame 100 further includes a base plate 120, which is connected to the surrounding plate 110 and blocks the air inlet of the first pressure relief channel 101. The base plate 120 is provided with a plurality of second pressure relief holes 121, through which high-pressure gas can enter the first pressure relief channel 101. In this embodiment, the base plate 120 can block particulate matter within the high-pressure gas, which helps reduce the probability of particulate matter entering the first pressure relief channel 101 with the high-pressure gas, thereby reducing the probability of particulate matter being discharged within the pressure relief structure with the high-pressure gas and improving safety.

[0089] For example, the second pressure relief holes 121 can be arranged in a matrix.

[0090] In one feasible implementation, the base plate 120 is provided with an air intake baffle 122 at the second pressure relief hole 121. The air intake baffle 122 can block particulate matter in the high-pressure gas, which helps to reduce the probability of particulate matter entering the first pressure relief channel 101 with the high-pressure gas. It is understood that the second pressure relief hole 121 and the air intake baffle 122 are provided in a one-to-one correspondence.

[0091] For example, the intake baffle 122 arches into the first pressure relief channel 101, which facilitates the entry of high-pressure gas into the first pressure relief channel 101.

[0092] For example, the second pressure relief hole 121 is a rectangular hole, which helps the air intake baffle 122 to block particulate matter in the high-pressure gas.

[0093] This embodiment also provides a switch cabinet, which includes a cabinet body (not shown) and the aforementioned pressure relief structure. A pressure relief port is provided on the top of the cabinet body, and the pressure relief structure is located on the pressure relief port. The air inlet of the first pressure relief channel 101 is connected to the pressure relief port. High-pressure gas inside the switch cabinet enters the first pressure relief channel 101 through the pressure relief port. In this embodiment, the pressure relief structure facilitates the rapid discharge of high-pressure gas, ensuring safety and reliability.

[0094] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pressure relief structure, characterized in that, include: A frame (100) having a first pressure relief channel (101); The first pressure relief cover (200) has opposing first and second sides, the first side being hinged to a first side of the frame (100) along a first direction; The second pressure relief cover (300) has opposing third and fourth sides, the third side being hinged to the second side of the frame (100) along a first direction; The first pressure relief cover (200) and the second pressure relief cover (300) are both fastened to the frame (100). The first pressure relief cover (200) and the second pressure relief cover (300) cover the air outlet of the first pressure relief channel (101), and the second side and the fourth side abut against each other.

2. The pressure relief structure according to claim 1, characterized in that, The second side is provided with a bent first folded edge (210) facing into the first pressure relief channel (101), and the fourth side is provided with a bent second folded edge (310) facing into the first pressure relief channel (101); The first pressure relief cover (200) and the second pressure relief cover (300) are both fastened to the frame (100), and the first folded edge (210) abuts against the second folded edge (310).

3. The pressure relief structure according to claim 2, characterized in that, The first fold (210) includes a first plate portion (211) and a second plate portion (212) arranged at an angle, and the second fold (310) includes a third plate portion (311) and a fourth plate portion (312) arranged at an angle; The first pressure relief cover (200) and the second pressure relief cover (300) are both fastened to the frame (100), and the first bending angle (213) between the first plate portion (211) and the second plate portion (212) abuts against the second bending angle (313) between the third plate portion (311) and the fourth plate portion (312).

4. The pressure relief structure according to claim 1, characterized in that, The first pressure relief cover (200) includes a first sealing plate (220) and a first baffle (230) disposed at both ends of the first sealing plate (220) along a second direction. The first sealing plate (220) has opposing first side portions and second side portions. The second pressure relief cover (300) includes a second sealing plate (320) and a second baffle (330) disposed at both ends of the second sealing plate (320) along a second direction, the second sealing plate (320) having the opposing third side and the fourth side; The first pressure relief cover (200) and the second pressure relief cover (300) are both fastened to the frame (100), and the first sealing plate (220) and the second sealing plate (320) block the air outlet of the first pressure relief channel (101); The first pressure relief cover (200) and the second pressure relief cover (300) are both rotated to the opening angle, and a second pressure relief channel (400) communicating with the first pressure relief channel (101) is formed between the first sealing plate (220), the first baffle (230), the second sealing plate (320) and the second baffle (330).

5. The pressure relief structure according to claim 4, characterized in that, Along the second direction, the first baffle (230) and the second baffle (330) at the same end are staggered.

6. The pressure relief structure according to claim 4, characterized in that, A first clearance plate (240) is provided between each of the two first baffles (230) and the first sealing plate (220). The first sealing plate (220), the first clearance plate (240) and the first baffle (230) are bent in sequence, and the bending direction of the first clearance plate (240) relative to the first sealing plate (220) is opposite to the bending direction of the first baffle (230) relative to the first clearance plate (240). Alternatively, a second clearance plate (340) is provided between each of the two second baffles (330) and the second sealing plate (320). The second sealing plate (320), the second clearance plate (340) and the second baffle (330) are bent in sequence, and the bending direction of the second clearance plate (340) relative to the second sealing plate (320) is opposite to the bending direction of the second baffle (330) relative to the second clearance plate (340). Alternatively, a first clearance plate (240) may be provided between one of the two first baffles (230) and the first sealing plate (220), and a second clearance plate (340) may be provided between one of the two second baffles (330) and the second sealing plate (320), and along the second direction, the first baffle (230) connected to the first clearance plate (240) and the second baffle (330) connected to the second clearance plate (340) are not at the same end; the first sealing plate (220), the first clearance plate (240) and the second sealing plate (220) may be provided with a first clearance plate (240). A baffle (230) is bent in sequence, and the bending direction of the first relief plate (240) relative to the first sealing plate (220) is opposite to the bending direction of the first baffle (230) relative to the first relief plate (240); the second sealing plate (320), the second relief plate (340) and the second baffle (330) are bent in sequence, and the bending direction of the second relief plate (340) relative to the second sealing plate (320) is opposite to the bending direction of the second baffle (330) relative to the second relief plate (340).

7. The pressure relief structure according to claim 1, characterized in that, The first edge is bent to form a first limiting flange (250), which can abut against the frame (100) and limit the opening angle of the first pressure relief cover (200); The third side is bent to form a second limiting flange (350), which can abut against the frame (100) and limit the opening angle of the second pressure relief cover (300).

8. The pressure relief structure according to claim 1, characterized in that, The frame (100) includes a plurality of enclosures (110), and the first pressure relief channel (101) is formed between the enclosures (110). At least a portion of the enclosures (110) are provided with a first pressure relief hole (111), and the outlet of the first pressure relief hole (111) is away from the outlet of the pressure relief channel.

9. The pressure relief structure according to claim 8, characterized in that, The frame (100) also includes a base plate (120), which is connected to the enclosure (110) and blocks the air inlet of the first pressure relief channel (101). The base plate (120) is provided with a plurality of second pressure relief holes (121).

10. A switch cabinet, characterized in that, The device includes a cabinet and a pressure relief structure as described in any one of claims 1-9. The top of the cabinet is provided with a pressure relief port, the pressure relief structure is disposed on the pressure relief port of the cabinet, and the air inlet of the first pressure relief channel (101) of the pressure relief structure is connected to the pressure relief port.

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