Power distribution cabinet intelligent pressure relief device based on arc reduction

Abstract

The invention provides a power distribution cabinet intelligent pressure relief device based on arc reduction, and belongs to the field of power distribution cabinet pressure relief devices.The power distribution cabinet intelligent pressure relief device comprises a cabinet body and a cabinet door, the cabinet door is rotationally connected with the side wall of the cabinet body through multiple hinges, the outer side wall of the cabinet body is fixedly connected with a shell, the outer side wall of the shell is provided with a baffle, and the side wall of the cabinet body is provided with a pressure relief opening; a sealing plate is arranged on the outer side wall of the cabinet body, the auxiliary assembly is arranged on the inner side of the shell, and the auxiliary assembly is used for preventing high pressure from being generated in the cabinet body and cooling the cabinet body; the touch assembly is arranged below the auxiliary assembly, and the touch assembly is used for preventing open fire from being generated in the cabinet body; the reinforcing assembly is arranged on the inner side of the cabinet body, and the reinforcing assembly is used for improving the stability of the cabinet door. According to the invention, through pushing of the sealing plate, the fixed rod is driven to move, so that the end part of the shifting rod extrudes the push plate, carbon dioxide is sprayed into the cabinet body, and the possibility of generation of open fire is reduced.

Description

Technical Field

[0001] The present invention relates to the field of pressure relief devices for power distribution cabinets, and in particular to an intelligent pressure relief device for power distribution cabinets based on arc elimination. Background Art

[0002] Electrical cabinets require pressure relief devices primarily to handle sudden high-voltage surges that may occur internally. This design is a crucial component of electrical safety systems. When a short circuit or arc fault occurs in a distribution cabinet, the instantaneous release of enormous energy generates significant heat and gas within the confined space. Failure to promptly release this high pressure can trigger a series of chain reactions: First, the rapidly increasing internal pressure exerts significant stress on the cabinet structure, potentially causing sheet metal deformation, weld cracking, or even cabinet rupture, resulting in permanent damage to the equipment. Second, when the pressure exceeds the cabinet's tolerance limit, high-temperature gas can erupt at high speeds through weak points like door gaps and wiring holes, potentially igniting surrounding equipment and causing serious harm to nearby personnel.

[0003] When a power distribution cabinet experiences a short circuit or arc fault, internal pressure surges and temperatures reach extremely high levels. This high temperature can trigger multiple hazardous effects: First, the high temperature rapidly decomposes cable insulation, releasing flammable gases. Second, other plastic components within the cabinet, such as circuit breaker housings and terminal blocks, melt and participate in the combustion. This combustion process is self-sustaining; once initiated, it continuously releases heat, forming a thermal feedback loop. The incomplete combustion of these organic materials produces large amounts of toxic smoke and corrosive gases. These harmful substances not only reduce visibility and hinder escape, but can also cause chemical burns to the respiratory tract.

[0004] How to invent an intelligent pressure relief device for distribution cabinets based on arc reduction to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides an intelligent pressure relief device for a distribution cabinet based on arc mitigation, aiming to improve the problems mentioned in the above background.

[0006] The present invention is achieved in that: The present invention provides an intelligent pressure relief device for a distribution cabinet based on arc mitigation, comprising a cabinet body and a cabinet door, wherein the cabinet door is rotatably connected to the side wall of the cabinet body through multiple hinges, the outer wall of the cabinet body is fixedly connected to an outer shell, the outer wall of the outer shell is provided with a baffle, the side wall of the cabinet body is provided with a pressure relief port, the outer wall of the cabinet body is provided with a sealing plate, the sealing plate is provided to seal the pressure relief port, and further comprises: an auxiliary component, wherein the auxiliary component is arranged on the inner side of the outer shell, and the auxiliary component is used to prevent high pressure from being generated inside the cabinet body and to cool the cabinet body; a touch component, wherein the touch component is arranged below the auxiliary component, and the touch component is used to prevent open flames from being generated inside the cabinet body; a reinforcement component, wherein the reinforcement component is arranged on the inner side of the cabinet body, and the reinforcement component is used to improve the stability of the cabinet door.

[0007] Preferably, the auxiliary component includes a plurality of cooling tubes fixedly connected to the inner wall of the outer shell, the end of the cooling tube is slidably connected to a push rod, the end of the push rod is fixedly connected to the sealing plate, a return spring is provided on the cooling tube, one end of the return spring is fixedly connected to the sealing plate, and the other end is fixedly connected to the end of the cooling tube, the inner wall of the cooling tube is fixedly connected with a sealing ring, the end of the push rod is fixedly connected to a diverter seat, the diverter seat is slidably arranged with the inner wall of the cooling tube, a sealing plate is provided on the upper sleeve of the push rod, the sealing plate is fitted with the diverter seat, the side wall of the sealing plate is fixedly connected to a first spring, and the end of the first spring away from the sealing plate is fixedly connected to the push rod.

[0008] Preferably, coolant is provided in the cooling pipe, and the top of the cooling pipe is connected to a return pipe and a liquid inlet pipe, and the return pipe and the liquid inlet pipe are located on both sides of the diverter seat. The bottom of the cooling pipe is connected to a plurality of dispersion pipes, and the two ends of the dispersion pipes are located on both sides of the diverter seat. The cooling pipe is connected to the external cooling mechanism through the return pipe and the liquid inlet pipe.

[0009] Preferably, a plurality of diversion holes are provided on the diversion seat, and the blocking plate is provided to block the plurality of diversion holes, but the blocking plate does not block all of the diversion holes, and a plurality of ventilation holes are provided on the sealing plate.

[0010] Preferably, the touch assembly includes a fixed rod fixedly connected to the sealing plate, a shift rod is rotatably connected to the fixed rod, a side wall of the shell is rotatably connected to the support shaft, the shift rod passes through the support shaft, the shift rod and the support shaft are slidably arranged, the end of the fixed rod is fixedly connected to the baffle, an air outlet is provided on the shell, and the baffle is arranged to block the air outlet.

[0011] Preferably, the inner side wall of the shell is fixedly connected to a gas tank, liquid carbon dioxide is provided in the gas tank, the top of the gas tank is fixedly connected to a vent valve, a first chamber and a second chamber are provided in the vent valve, the side wall of the vent valve is slidably connected to a valve stem, one end of the valve stem is fixedly connected to the valve, and the other end is fixedly connected to the push plate, a second spring is sleeved on the valve stem, and the second spring is located between the vent valve and the push plate.

[0012] Preferably, an air outlet pipe is provided on the vent valve, and the air outlet pipe is connected to the interior of the cabinet.

[0013] Preferably, the reinforcement assembly includes a lining frame fixedly connected to the inner wall of the cabinet door, a buffer plate is slidably arranged in the lining frame, a plurality of third springs are fixedly connected to the side wall of the buffer plate, and the ends of the third springs are fixedly connected to the inner wall of the cabinet door.

[0014] Preferably, the edge of the buffer plate is provided with an inclined surface, a plurality of slide seats are fixedly connected to the inclined surface, a slider is slidably provided on the inner side of the slide seat, and a slide rod is fixedly connected to the slider.

[0015] Preferably, the cabinet body is provided with fixing holes, the number of the fixing holes is the same as the number of the sliding rods, and the end of the sliding rod passes through the lining frame and is located between the lining frame and the cabinet body.

[0016] The beneficial effects of the present invention are as follows: the sealing plate and the baffle are moved by the force of the high-temperature airflow on the sealing plate, so that the increased pressure inside the cabinet is dumped into the external environment. At the same time, the sealing plate, pushed by the high-temperature airflow, also drives the fixed rod to move, so that the end of the lever squeezes the push plate, and carbon dioxide is sprayed into the interior of the cabinet, reducing the possibility of generating open flames. Due to the vaporization of carbon dioxide, the temperature inside the cabinet drops rapidly, thereby hindering the maintenance and development of the arc channel, shortening the distance of arc overflow, and reducing the possibility of arc breakdown in other electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of an intelligent pressure relief device for a power distribution cabinet based on arc mitigation provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of an intelligent pressure relief device for a power distribution cabinet based on arc mitigation provided by an embodiment of the present invention; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a structural schematic diagram of a sealing plate of an intelligent pressure relief device for a power distribution cabinet based on arc elimination provided by an embodiment of the present invention; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the position of a gas tank of an intelligent pressure relief device for a power distribution cabinet based on arc mitigation provided by an embodiment of the present invention; Figure 7 yes Figure 6 Enlarged view of point C in the middle; Figure 8 This is a schematic diagram of the lining frame structure of an intelligent pressure relief device for a power distribution cabinet based on arc mitigation provided by an embodiment of the present invention; Figure 9 This is a schematic structural diagram of a buffer plate of an intelligent pressure relief device for a power distribution cabinet based on arc mitigation provided by an embodiment of the present invention; Figure 10 yes Figure 9 Enlarged view of point D in the middle.

[0019] In the figure: 1. cabinet body; 2. cabinet door; 3. outer shell; 4. baffle; 5. pressure relief port; 6. sealing plate; 7. cooling pipe; 11. push rod; 13. return spring; 14. sealing ring; 15. diverter seat; 16. blocking plate; 17. first spring; 18. liquid return pipe; 19. liquid inlet pipe; 20. dispersion pipe; 21. diverter hole; 22. ventilation hole; 31. fixing rod; 32. shift rod; 33. support shaft; 42. gas tank; 43. vent valve; 44. first chamber; 45. second chamber; 46. valve; 47. valve stem; 48. push plate; 49. second spring; 50. outlet pipe; 61. liner frame; 62. buffer plate; 63. third spring; 64. slide seat; 65. slide rod; 66. fixing hole; 67. inclined surface; 68. slider. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] Example, refer to Figure 1-Figure 5, an intelligent pressure relief device for a distribution cabinet based on arc mitigation, includes a cabinet body 1 and a cabinet door 2, the cabinet door 2 is rotatably connected to the side wall of the cabinet body 1 through multiple hinges, the outer wall of the cabinet body 1 is fixedly connected to the outer shell 3, the outer wall of the outer shell 3 is provided with a baffle 4, the side wall of the cabinet body 1 is opened with a pressure relief port 5, the outer wall of the cabinet body 1 is provided with a sealing plate 6, the sealing plate 6 is provided to seal the pressure relief port 5, and also includes: an auxiliary component, the auxiliary component is arranged on the inner side of the outer shell 3, the auxiliary component is used to prevent high pressure from being generated inside the cabinet body 1 and to cool the cabinet body 1; a touch component, the touch component is arranged below the auxiliary component, the touch component is used to prevent open flames from being generated inside the cabinet body 1; a reinforcement component, the reinforcement component is arranged on the inner side of the cabinet body 1, and the reinforcement component is used to improve the stability of the cabinet door 2.

[0022] The auxiliary component includes a plurality of cooling tubes 7 fixedly connected to the inner wall of the outer shell 3, and the end of the cooling tube 7 is slidably connected to the push rod 11, and the end of the push rod 11 is fixedly connected to the sealing plate 6. A return spring 13 is provided on the cooling tube 7, and one end of the return spring 13 is fixedly connected to the sealing plate 6, and the other end is fixedly connected to the end of the cooling tube 7. A sealing ring 14 is fixedly connected to the inner wall of the cooling tube 7, and the end of the push rod 11 is fixedly connected to the diverter seat 15, which is slidably arranged with the inner wall of the cooling tube 7. A sealing plate 16 is provided on the upper sleeve of the push rod 11, and the sealing plate 16 is fitted with the diverter seat 15. The side wall of the sealing plate 16 is fixedly connected to a first spring 17, and the end of the first spring 17 away from the sealing plate 16 is fixedly connected to the push rod 11.

[0023] Cooling liquid is provided in the cooling pipe 7. The top of the cooling pipe 7 is connected to a return pipe 18 and a liquid inlet pipe 19. The return pipe 18 and the liquid inlet pipe 19 are located on both sides of the diverter seat 15. The bottom of the cooling pipe 7 is connected to a plurality of dispersion pipes 20. Both ends of the dispersion pipe 20 are located on both sides of the diverter seat 15. The cooling pipe 7 is connected to the external cooling mechanism through the return pipe 18 and the liquid inlet pipe 19. A plurality of diverter holes 21 are provided on the diverter seat 15. The sealing plate 16 is set to block the plurality of diverter holes 21. The sealing plate 16 does not block all the diverter holes 21. The sealing plate 6 is provided with a plurality of ventilation holes 22.

[0024] It should be noted that since a variety of switching electrical appliances will be installed in the cabinet 1 later, these switching electrical appliances will emit heat during use. By setting up a cooling pipe 7, the coolant is transported into the liquid inlet pipe 19 through an external cooling mechanism, passes through multiple dispersion pipes 20, and flows back from the return liquid pipe 18. In this process, the external cooling mechanism continues to cool the coolant, and exchanges heat with the air inside the shell 3 through multiple dispersion pipes 20 to cool the interior of the shell 3. The cooled air is exchanged with the air inside the cabinet 1 through the ventilation holes 22 to cool the air inside the cabinet 1, thereby preventing the temperature inside the cabinet 1 from continuing to rise and accelerating the aging of the electrical appliances.

[0025] When the temperature and air pressure inside the distribution cabinet rise due to an arc fault, the thrust of the airflow acts on the sealing plate 6, overcoming the elastic force of the reset spring 13, and pushing the sealing plate 6 away from the cabinet body 1, so that the sealing plate 6 no longer blocks the pressure relief port 5. The sealing plate 6 also pushes the baffle 4 away from the outer shell 3 through the fixed rod 31, so that the increased pressure inside the cabinet body 1 is dumped into the external environment, preventing the high-temperature airflow from impacting the cabinet body 1 and causing damage to the cabinet body 1. The dumping direction of the high-temperature airflow is also controlled, which is beneficial to improving the safety of the distribution cabinet.

[0026] Reference Figure 6-Figure 7 The trigger assembly includes a fixed rod 31 fixedly connected to the sealing plate 6, a lever 32 is rotatably connected to the fixed rod 31, a support shaft 33 is rotatably connected to the side wall of the shell 3, the lever 32 passes through the support shaft 33, the lever 32 and the support shaft 33 are slidably arranged, the end of the fixed rod 31 is fixedly connected to the baffle 4, an air outlet is provided on the shell 3, the baffle 4 is provided to block the air outlet, the inner side wall of the shell 3 is fixedly connected to a gas tank 42, liquid carbon dioxide is provided in the gas tank 42, and the gas A vent valve 43 is fixedly connected to the top of the tank 42, and a first chamber 44 and a second chamber 45 are provided in the vent valve 43. A valve stem 47 is slidably connected to the side wall of the vent valve 43, one end of the valve stem 47 is fixedly connected to the valve 46, and the other end is fixedly connected to the push plate 48. A second spring 49 is sleeved on the valve stem 47, and the second spring 49 is located between the vent valve 43 and the push plate 48. An air outlet pipe 50 is connected to the vent valve 43, and the air outlet pipe 50 is connected to the interior of the cabinet 1.

[0027] It should be noted that, since an arc fault can cause the temperature inside the distribution cabinet to rise rapidly, which can easily cause the electrical appliances inside the distribution cabinet to burn, the sealing plate 6, driven by the high-temperature airflow, drives the fixed rod 31 to move, and the fixed rod 31 drives the lever 32 to rotate on the support shaft 33, so that the end of the lever 32 squeezes the push plate 48. The push plate 48 overcomes the elastic force of the second spring 49 and drives the valve stem 47 and the valve 46 to move, so that the valve 46 is opened, so that the inside of the gas tank 42 is connected to the external environment. The liquid carbon dioxide inside the gas tank 42 vaporizes due to the pressure reduction. The carbon dioxide passes through the first chamber 44, the second chamber 45 and the outlet pipe 50 and is sprayed into the interior of the cabinet 1, causing the interior of the cabinet 1 to be filled with carbon dioxide and become oxygen-deficient, thereby preventing the problem of electrical appliances burning due to temperature increase. The carbon dioxide also absorbs a large amount of heat during the vaporization process, causing the temperature inside the cabinet 1 to drop rapidly. This rapid cooling effect can effectively reduce the thermal energy in the arc area, making it difficult for the gas molecules to be ionized, thereby hindering the maintenance and development of the arc channel, shortening the distance the arc overflows, and reducing the possibility of the arc breaking through other electrical equipment.

[0028] The sealing plate 6 also drives the push rod 11 to move under the push of the high-temperature airflow, and drives the diverter seat 15 to move toward the direction of the return pipe 18, so that the coolant located between the diverter seat 15 and the return pipe 18 moves to the other side of the diverter seat 15 through the multiple diverter holes 21. In this process, the coolant pushes the blocking plate 16 to overcome the elastic force of the first spring 17, so that the blocking plate 16 releases the blocking state of the diverter hole 21. When the thrust of the high-temperature airflow disappears, under the elastic force of the reset spring 13, the push rod 11 drives the diverter seat 15 to move toward the direction of the liquid inlet pipe 19, so that the coolant located between the diverter seat 15 and the return pipe 18 moves to the other side of the diverter seat 15 through the multiple diverter holes 21. The coolant between 19 and the diverter seat 15 moves toward the other side of the diverter seat 15. During this process, the sealing plate 16 is squeezed by the coolant to continuously block part of the diverter hole 21, reducing the flow of coolant flowing in the direction of the return pipe 18, making the speed of the diverter seat 15 moving toward the liquid inlet pipe 19 slower than the speed of the diverter seat 15 moving toward the return pipe 18, increasing the squeezing time of the end of the lever 32 on the push plate 48, increasing the injection time of carbon dioxide into the interior of the cabinet 1, reducing the possibility of subsequent combustion and continuously reducing the temperature inside the cabinet 1, and suppressing the distance of arc overflow.

[0029] Reference Figures 8-10 The reinforcement component includes a lining frame 61 fixedly connected to the inner wall of the cabinet door 2, a buffer plate 62 is slidingly provided in the lining frame 61, a plurality of third springs 63 are fixedly connected to the side wall of the buffer plate 62, the end of the third spring 63 is fixedly connected to the inner wall of the cabinet door 2, the edge of the buffer plate 62 is provided with a slope 67, a plurality of sliding seats 64 are fixedly connected to the slope 67, a slider 68 is slidingly provided on the inner side of the slider 64, a sliding rod 65 is fixedly connected to the slider 68, and a fixing hole 66 is provided on the cabinet body 1. The number of the fixing holes 66 and the sliding rod 65 is the same. The sliding rod 65 passes through the end of the lining frame 61 and is located between the lining frame 61 and the cabinet body 1.

[0030] It should be noted that by setting up a reinforcement component, when the buffer plate 62 is impacted by the high-pressure airflow, it overcomes the elastic force of the third spring 63 and moves toward the cabinet door 2, driving the slide 64 to move, and squeezing the slider 68 through the inclined surface 67, driving the slider 68 and the slide rod 65 to move toward the fixing hole 66, so that the slide rod 65 is inserted into the fixing hole 66, so that the cabinet door 2 and the cabinet body 1 are reinforced by the lining frame 61, preventing the high-pressure airflow from directly impacting the cabinet door 2, causing the cabinet door 2 to open quickly and causing harm to the surrounding personnel. When the buffer plate 62 is no longer impacted by the airflow, the buffer plate 62 is subjected to the elastic force of the third spring 63 and moves in the direction away from the cabinet door 2, so that the slide rod 65 is pulled out of the fixing hole 66, no longer blocking the opening of the cabinet door 2, and facilitating the staff to inspect the inside of the cabinet body 1.

[0031] In this embodiment, auxiliary components are provided, and the cooling pipe 7 and the dispersion pipe 20 cool the air inside the housing 3 and the cabinet 1 to prevent the temperature inside the cabinet 1 from continuing to rise.

[0032] When the temperature and pressure inside the distribution cabinet rise due to an arc fault, the thrust of the airflow acts on the sealing plate 6, causing the sealing plate 6 and the baffle 4 to move, so that the increased pressure inside the cabinet 1 is dumped into the external environment. At the same time, the sealing plate 6, pushed by the high-temperature airflow, also drives the fixed rod 31 to move, so that the end of the lever 32 squeezes the push plate 48, so that carbon dioxide is sprayed into the interior of the cabinet 1, and the interior of the cabinet 1 becomes an oxygen-deficient state due to being filled with carbon dioxide. Through the delayed resetting of the diverter seat 15, the squeezing time of the end of the lever 32 on the push plate 48 is increased, and the injection time of carbon dioxide into the interior of the cabinet 1 is increased, which reduces the possibility of generating open flames. Due to the vaporization of carbon dioxide, the temperature inside the cabinet 1 drops rapidly, thereby hindering the maintenance and development of the arc channel, shortening the distance of arc overflow, and reducing the possibility of arc breakdown of other electrical equipment.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An intelligent pressure relief device for a power distribution cabinet based on arc mitigation, comprising a cabinet body (1) and a cabinet door (2), wherein the cabinet door (2) is rotatably connected to the side wall of the cabinet body (1) via a plurality of hinges, the outer wall of the cabinet body (1) is fixedly connected to a shell (3), the outer wall of the shell (3) is provided with a baffle (4), the side wall of the cabinet body (1) is provided with a pressure relief port (5), the outer wall of the cabinet body (1) is provided with a sealing plate (6), and the sealing plate (6) is provided to block the pressure relief port (5), characterized in that: Also includes: An auxiliary component, the auxiliary component being arranged on the inner side of the outer shell (3), and the auxiliary component being used to prevent a high pressure from being generated inside the cabinet (1) and to cool the cabinet (1); A trigger assembly, the trigger assembly being arranged below the auxiliary assembly and being used to prevent an open flame from being generated inside the cabinet (1); A reinforcement component is provided on the inner side of the cabinet body (1), and is used to improve the stability of the cabinet door (2).

2. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 1, characterized in that: The auxiliary component includes a plurality of cooling tubes (7) fixedly connected to the inner wall of the shell (3), the end of the cooling tube (7) is slidably connected to a push rod (11), the end of the push rod (11) is fixedly connected to the sealing plate (6), a return spring (13) is sleeved on the cooling tube (7), one end of the return spring (13) is fixedly connected to the sealing plate (6), and the other end is fixedly connected to the end of the cooling tube (7), the inner wall of the cooling tube (7) is fixedly connected to a sealing ring (14), the end of the push rod (11) is fixedly connected to a diverter seat (15), the diverter seat (15) is slidably arranged with the inner wall of the cooling tube (7), the upper sleeve of the push rod (11) is provided with a sealing plate (16), the sealing plate (16) is fitted with the diverter seat (15), the side wall of the sealing plate (16) is fixedly connected to a first spring (17), and the end of the first spring (17) away from the sealing plate (16) is fixedly connected to the push rod (11).

3. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 2, characterized in that: The cooling pipe (7) is provided with cooling liquid. The top of the cooling pipe (7) is connected to a liquid return pipe (18) and a liquid inlet pipe (19). The liquid return pipe (18) and the liquid inlet pipe (19) are located on both sides of the diverter seat (15). The bottom of the cooling pipe (7) is connected to a plurality of dispersion pipes (20). Both ends of the dispersion pipes (20) are located on both sides of the diverter seat (15). The cooling pipe (7) is connected to an external cooling mechanism through the liquid return pipe (18) and the liquid inlet pipe (19).

4. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 2, characterized in that: The diverter seat (15) is provided with a plurality of diverter holes (21), the blocking plate (16) is provided to block the plurality of diverter holes (21), the blocking plate (16) does not block all of the diverter holes (21), and the sealing plate (6) is provided with a plurality of ventilation holes (22).

5. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 1, characterized in that: The touch assembly comprises a fixed rod (31) fixedly connected to the sealing plate (6), a shift rod (32) being rotatably connected to the fixed rod (31), a support shaft (33) being rotatably connected to the side wall of the housing (3), the shift rod (32) passing through the support shaft (33), the shift rod (32) and the support shaft (33) being slidably arranged, an end portion of the fixed rod (31) being fixedly connected to the baffle (4), an air outlet being provided on the housing (3), and the baffle (4) being arranged to block the air outlet.

6. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 5, characterized in that: The inner side wall of the housing (3) is fixedly connected to a gas tank (42), liquid carbon dioxide is provided in the gas tank (42), a vent valve (43) is fixedly connected to the top of the gas tank (42), a first chamber (44) and a second chamber (45) are provided in the vent valve (43), a valve stem (47) is slidably connected to the side wall of the vent valve (43), one end of the valve stem (47) is fixedly connected to the valve (46), and the other end is fixedly connected to the push plate (48), a second spring (49) is sleeved on the valve stem (47), and the second spring (49) is located between the vent valve (43) and the push plate (48).

7. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 6, characterized in that: An air outlet pipe (50) is provided in communication with the vent valve (43), and the air outlet pipe (50) is provided in communication with the interior of the cabinet (1).

8. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 1, characterized in that: The reinforcement assembly comprises a lining frame (61) fixedly connected to the inner side wall of the cabinet door (2), a buffer plate (62) is slidably arranged in the lining frame (61), a plurality of third springs (63) are fixedly connected to the side wall of the buffer plate (62), and the ends of the third springs (63) are fixedly connected to the inner side wall of the cabinet door (2).

9. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 8, characterized in that: The edge of the buffer plate (62) is provided with an inclined surface (67), a plurality of slide seats (64) are fixedly connected to the inclined surface (67), a slider (68) is slidably provided inside the slide seat (64), and a slide rod (65) is fixedly connected to the slider (68).

10. The intelligent pressure relief device for distribution cabinet based on arc elimination according to claim 9, characterized in that: The cabinet body (1) is provided with fixing holes (66), the number of the fixing holes (66) is the same as the number of the sliding rods (65), and the end of the sliding rod (65) passes through the lining frame (61) and is located between the lining frame (61) and the cabinet body (1).

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