Intelligent self-adaptive arc fault suppression and energy dredging power distribution cabinet

Abstract

The invention relates to the technical field of power distribution cabinets, and particularly discloses an intelligent self-adaptive arc fault suppression and energy dredging power distribution cabinet which comprises a cabinet body, a suppression assembly is arranged on the outer side of the cabinet body, a sealing assembly and a heat dissipation assembly are arranged in the cabinet body, and a fixing plate is fixedly connected in the cabinet body; after the cabinet door is closed, the sealing plate, the sealing seat and the movable plate form a closed gas chamber, sulfur hexafluoride gas is filled through the gas inlet valve and is divided into an upper independent space and a lower independent space through the heat dissipation plate so as to limit arc diffusion, in a normal state, sulfur hexafluoride can restrain initial arc generation, and when the arc generates high-temperature and high-pressure gas, the pressure relief mechanism discharges pressure in a directional mode so as to prevent the arc from generating high-temperature and high-pressure gas. When the pressure exceeds a threshold value, the sealing block opens the spraying hole, and dry powder in the high-pressure dry powder storage bottle is accurately injected into an arc area, so that an arc fault is quickly responded, arc development is effectively inhibited, the damage range of high-temperature and high-pressure gas is reduced, the operation safety and stability of the power distribution cabinet are improved, and the difficulty and risk of fault processing are reduced.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and in particular to an intelligent adaptive arc fault suppression and energy diversion power distribution cabinet. Background Technology

[0002] Intelligent adaptive arc fault suppression and energy diversion distribution cabinet, as a new type of intelligent power distribution equipment, has advanced protection and control functions. Its core function is to deal with arc faults to ensure the safe and stable operation of the power system and to achieve optimized energy distribution and efficient diversion. The equipment collects abnormal signals in the circuit in real time (such as current waveform distortion, arc characteristics, etc.) through integrated sensors, and performs feature recognition and fault determination through intelligent algorithms. Once an arc fault is confirmed, the suppression mechanism is immediately triggered, including implementing fault circuit disconnection, limiting the release of arc energy, and safely discharging the fault current through the grounding bus, ultimately extinguishing the arc.

[0003] However, high-energy electric arcs release enormous amounts of heat and instantaneous pressure during combustion. Even after the circuit is cut off and the arc is extinguished, the surrounding medium exposed to the high temperature still poses a risk of continued combustion. At the same time, the arc ionizes a large amount of gas in the very short time before the power is cut off. If high voltage remains in the cabinet (such as capacitors not being fully discharged), it can easily induce a "secondary arc" to reignite. This makes it difficult to completely eliminate the environmental hazards of high-temperature and high-pressure gases by simply cutting off the circuit and diverting energy, leaving significant safety hazards for subsequent disposal procedures.

[0004] Therefore, there is a need to provide an intelligent adaptive arc fault suppression and energy diversion distribution cabinet to solve the above problems. Summary of the Invention

[0005] The main objective of this invention is to provide an intelligent adaptive arc fault suppression and energy diversion distribution cabinet, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An intelligent adaptive arc fault suppression and energy diversion distribution cabinet includes a cabinet body. An suppression component is installed on the outer side of the cabinet body. A sealing component and a heat dissipation component are installed inside the cabinet body. A fixing plate is fixedly connected inside the cabinet body. The suppression component includes a cabinet door hinged to the cabinet body. A sealing plate is slidably connected inside the cabinet door. A shunt seat is fixedly connected inside the sealing plate. A high-pressure dry powder storage bottle is movably installed on the outer side of the sealing plate. A sealing block is slidably connected inside the shunt seat. Two sets of spray holes are opened at one end of the shunt seat near the sealing component. A spring is fixedly connected between the sealing block and the inner wall of the shunt seat.

[0008] The sealing assembly includes a sealing seat that is slidably installed in the cabinet via a slide rail. A connecting plate is slidably connected inside the cabinet. A movable seat is fixedly connected to the upper and lower ends of the connecting plate. A movable plate is rotatably connected inside each movable seat. A heat dissipation plate that penetrates into the sealing seat is fixedly connected inside the fixed plate. A pressure relief mechanism is symmetrically arranged inside the sealing seat.

[0009] An air inlet valve is fixedly connected to the outside of the sealing seat, and the air inlet valve passes through the cabinet.

[0010] As a further improvement to the above solution, the heat dissipation assembly includes a mounting base, a cross-flow fan, and a heat sink. The cross-flow fan is fixedly installed at the bottom of the cabinet, and the heat sink is fixedly installed at the top of the cabinet. Both the cross-flow fan and the heat sink are connected to the mounting base. Multiple partitions are fixedly connected inside the mounting base, and a flow-reducing block is symmetrically fixedly connected between every two adjacent partitions. Multiple heat dissipation pipes are fixedly installed inside the heat dissipation plate. One end of each heat dissipation pipe passes through the mounting base, and the other end of the heat dissipation pipe passes through the space between two flow-reducing blocks.

[0011] As a further improvement to the above solution, the pressure relief mechanism includes a pressure relief seat fixedly installed inside the sealing seat, and baffles are slidably connected inside the pressure relief seat, with multiple support rods fixedly connected between the two baffles.

[0012] As a further improvement to the above solution, limit rods are fixedly connected to the four corners inside the cabinet door, the sealing plate is slidably connected to the four limit rods, and a spring is fixedly connected between the sealing plate and the inner wall of the cabinet door.

[0013] As a further improvement to the above solution, guide shafts are symmetrically fixedly connected to the outer side of the movable plate, and springs are fixedly connected between the movable seat and the fixed plate.

[0014] As a further improvement to the above solution, an installation sleeve is fixedly connected to the outer side of the sealing seat, and a piston is slidably connected inside the installation sleeve. A slot adapted to the piston is provided on the inner wall of the cabinet.

[0015] As a further improvement to the above solution, multiple dustproof seats are fixedly installed on the outside of the cabinet, and the heat dissipation pipe is slidably installed inside the dustproof seat at one end that passes through the cabinet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the cabinet door is closed, the sealing plate, sealing seat, and movable plate form a closed gas chamber. Sulfur hexafluoride gas is introduced through the inlet valve and separated into upper and lower independent spaces by the heat dissipation plate to limit the spread of electric arc. Under normal conditions, sulfur hexafluoride can suppress the initial generation of electric arc. When the electric arc generates high-temperature and high-pressure gas, the pressure relief mechanism releases pressure in a directional manner. When the pressure exceeds the threshold, the sealing block opens the spray hole, and the dry powder in the high-pressure dry powder storage bottle is precisely injected into the electric arc area, thereby responding quickly to electric arc faults, effectively suppressing the development of electric arcs, reducing the destructive range of high-temperature and high-pressure gas, improving the safety and stability of the distribution cabinet operation, and reducing the difficulty and risk of fault handling.

[0018] 2. When the distribution cabinet is operating normally, the cross-flow fan drives air into the mounting base. Through the action of the baffle and the constriction block, the air flows in the heat dissipation pipe and dissipates heat to the sealing seat through the dustproof seat, while ensuring that the airtightness of the sealed space is not affected. When an electric arc is generated, the high pressure causes the support rod to break, and the sealing seat and the mounting base are connected. The airflow in the mounting base can drive the high temperature and high pressure gas in the sealed space. Under the dilution and diversion effect of the cold air, it is quickly discharged by the cross-flow fan, which accelerates the dissipation of high temperature and high pressure gas and reduces the risk of secondary hazards. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the cabinet door structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the sealing seat of the present invention;

[0024] Figure 5 This is a schematic diagram of the cabinet structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the movable seat of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the cabinet of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the heat sink of the present invention;

[0028] Figure 9 This is a schematic diagram of the sealing assembly and heat dissipation assembly of the present invention;

[0029] Figure 10 This is an exploded view of the sealing assembly and heat dissipation assembly structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the pressure relief mechanism of the present invention;

[0031] Figure 12 This is a schematic diagram of the internal structure of the mounting base of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the suppression component of the present invention;

[0033] Figure 14 For the present invention Figure 13 Schematic diagram of the structure at point A;

[0034] Figure 15 This is a schematic diagram of the limiting rod of the present invention.

[0035] In the diagram: 1. Cabinet; 2. Suppression assembly; 21. Cabinet door; 22. Sealing plate; 23. Diverter seat; 24. High-pressure dry powder storage bottle; 25. Limiting rod; 26. Sealing block; 27. Spring 1; 28. Spring 2; 3. Sealing assembly; 31. Sealing seat; 32. Slide rail; 33. Movable plate; 34. Heat sink; 35. Guide shaft; 36. Pressure relief mechanism; 361. Pressure relief seat; 362. Baffle; 363. Support rod; 37. Movable seat; 38. Spring 3; 39. Connecting plate; 4. Air inlet valve; 5. Heat dissipation assembly; 51. Mounting seat; 52. Cross-flow fan; 53. Heat dissipation seat; 54. Dustproof seat; 55. Heat dissipation pipe; 56. Partition plate; 57. Constriction block; 6. Fixing plate; 61. Mounting sleeve; 62. Piston. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0037] Please see Figures 1 to 15 As shown, the present invention provides an embodiment:

[0038] The intelligent adaptive arc fault suppression and energy diversion distribution cabinet includes a cabinet body 1. An suppression component 2 is installed on the outside of the cabinet body 1. A sealing component 3 and a heat dissipation component 5 are installed inside the cabinet body 1. A fixing plate 6 is fixedly connected inside the cabinet body 1. The suppression component 2 includes a cabinet door 21 that is hinged to the cabinet body 1. A sealing plate 22 is slidably connected inside the cabinet door 21. A diverter seat 23 is fixedly connected inside the sealing plate 22. A high-pressure dry powder storage bottle 24 is movably installed on the outside of the sealing plate 22. A sealing block 26 is slidably connected inside the diverter seat 23. Two sets of spray holes are opened at one end of the diverter seat 23 near the sealing component 3. A spring 27 is fixedly connected between the sealing block 26 and the inner wall of the diverter seat 23.

[0039] The sealing assembly 3 includes a sealing seat 31 that is slidably installed in the cabinet 1 via a slide rail 32. A connecting plate 39 is slidably connected inside the cabinet 1. A movable seat 37 is fixedly connected to the upper and lower ends of the connecting plate 39. A movable plate 33 is rotatably connected inside the movable seat 37. A heat dissipation plate 34 that penetrates into the sealing seat 31 is fixedly connected inside the fixed plate 6. A pressure relief mechanism 36 is symmetrically arranged inside the sealing seat 31.

[0040] A guide shaft 35 is symmetrically fixedly connected to the outer side of the movable plate 33, and a spring 38 is fixedly connected between the movable seat 37 and the fixed plate 6.

[0041] An air inlet valve 4 is fixedly connected to the outside of the sealing seat 31, and the air inlet valve 4 passes through the cabinet body 1.

[0042] In practical applications, the initial state of this invention is as follows:

[0043] like Figure 3 , Figure 13 and Figure 14 As shown, the cabinet door 21 serves as the closed boundary of the cabinet body 1. The sealing plate 22, which is slidably connected to the inside, forms the first physical sealing defense line by fitting with the sealing component 3. The diversion seat 23 built into the sealing plate 22 provides a channel for dry powder injection. The sealing block 26 that slides inside it achieves the sealing of the nozzle under normal conditions through the pre-tightening force of the spring 27, preventing gas leakage in the sealed space. The high-pressure dry powder storage bottle 24 is pre-installed on the outside of the sealing plate 22 and is connected to the diversion seat 23. The dry powder extinguishing agent stored in it acts directionally on the arc generation area through the nozzle to form a chemical suppression supplement.

[0044] like Figures 3 to 7As shown, the sealing seat 31 is slidably installed inside the cabinet 1 via the slide rail 32. When it is necessary to install circuit components such as relays and circuit breakers, the sealing seat 31 can be moved outward. The outward movement of the sealing seat 31 releases the obstruction of the connecting plate 39, allowing the connecting plate 39 and the movable seat 37 to move outward under the preload of the spring 38. The movable seat 37 drives the movable plate 33 to open the upper and lower ends of the sealing seat 31 under the sliding connection between the guide shaft 35 and the cabinet 1. This allows the operator to enter the sealing seat 31 for installation after the sealing seat 31 is moved to the outside of the cabinet 1, simplifying the operation. After the circuit components are installed, the sealing seat 31 can be moved inward, which can drive the movable seat 37 and the movable plate 33 to move, and achieve sealing at both ends of the sealing seat 31.

[0045] like Figures 2 to 5 and Figure 7 As shown, the air inlet valve 4 passes through the cabinet 1 and is connected to the sealing seat 31. It is used to fill the sealed space with sulfur hexafluoride insulating gas to maintain the insulation environment under normal conditions.

[0046] During the normal operation of cabinet 1, cabinet door 21 is in a closed state. The sealing plate 22 on its inner side is in contact with the end face of sealing seat 31, and together with the movable plate 33, they form a closed air chamber. The air inlet valve 4 fills the air chamber with sulfur hexafluoride insulating gas and maintains the set pressure. The movable plate 33 and the sealing seat 31 are tightly in contact to achieve a seal, providing an insulating medium environment for the internal circuit components and reducing the risk of gap discharge from the source. At the same time, the heat dissipation plate 34 on the fixed plate 6 penetrates the sealing seat 31 with an embedded structure. It conducts the heat generated by the operation of the components in the air chamber, such as bus resistance loss and switch contact heating, to the outside of cabinet 1 through the thermal conductivity of metal. It also forms a lateral barrier through physical separation to limit the initial diffusion range of potential arc.

[0047] When a gas ionization fault occurs in cabinet 1 due to a short circuit or contact bounce, the insulating gas in the sealed gas chamber, based on existing technology, utilizes its high dielectric strength and arc-extinguishing properties to inhibit arc development by adsorbing arc energy at the molecular level and blocking the ionization chain. If the fault is not cleared in time, the arc energy continues to be released, the temperature in the gas chamber rises sharply, and the gas expands due to heat, causing a sudden increase in pressure. At this time, the symmetrically arranged pressure relief mechanism 36 is activated, and the overpressure gas is safely discharged to the outside of cabinet 1 through the directional channel, avoiding structural damage to the sealing seat 31 due to overpressure.

[0048] When the pressure rises to the preset threshold, the sealing block 26 overcomes the spring force and slides axially along the diverter seat 23 under the action of the pressure difference, releasing the mechanical blockage of the nozzle. The dry powder in the high-pressure dry powder storage bottle 24 is quickly sprayed into the core area of ​​the electric arc through the nozzle. The dry powder particles physically cover and isolate oxygen and chemically inhibit and interrupt the combustion reaction, thus forcibly extinguishing the electric arc, preventing reignition, improving the safety and stability of the distribution cabinet operation, and reducing the difficulty and risk of fault handling.

[0049] like Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 12 As shown, the heat dissipation assembly 5 includes a mounting base 51, a cross-flow fan 52, and a heat sink 53. The cross-flow fan 52 is fixedly installed at the bottom of the cabinet 1, and the heat sink 53 is fixedly installed at the top of the cabinet 1. Both the cross-flow fan 52 and the heat sink 53 are connected to the mounting base 51. Multiple partitions 56 are fixedly connected inside the mounting base 51. A flow-constricting block 57 is symmetrically fixedly connected between every two adjacent partitions 56. Multiple heat dissipation pipes 55 are fixedly installed inside the heat dissipation plate 34. One end of the heat dissipation pipe 55 passes through the mounting base 51, and the other end of the heat dissipation pipe 55 passes between two flow-constricting blocks 57.

[0050] In practical application, during normal operation, the bottom cross-flow fan 52 starts, driving external cold air into the mounting base 51. The baffle 56 inside the mounting base 51 divides the airflow into multiple independent channels. The constriction blocks 57 symmetrically arranged in each channel reduce the flow cross section, thereby increasing the airflow speed. Based on Bernoulli's principle, a "suction effect" is formed on the port of the heat dissipation pipe 55. At this time, the heat dissipation pipe 55 and the heat dissipation plate 34 act as a heat exchange bridge between the inside of the sealing base 31 and the mounting base 51, transferring the internal heat to the air inside the pipe. When the high-speed airflow passes through the heat dissipation pipe 55, it quickly carries away the heat and is discharged from the cabinet 1 through the top heat dissipation base 53, completing the heat dissipation cycle.

[0051] When an electric arc fault occurs inside the cabinet and triggers pressure release, the pressure relief mechanism 36 is activated, which connects the sealing seat 31 and the mounting seat 51. The airflow driven by the cross-flow fan 52 can quickly dilute and carry away the high-temperature and high-pressure gas through the heat dissipation pipe 55, accelerating the cooling and depressurization of the fault area and providing safe conditions for subsequent processing.

[0052] like Figure 10 and Figure 11 As shown, the pressure relief mechanism 36 includes a pressure relief seat 361 fixedly installed inside the sealing seat 31. The pressure relief seat 361 is slidably connected to a baffle 362 inside, and a plurality of support rods 363 are fixedly connected between the two baffles 362.

[0053] In practical applications, during normal operation, the two baffles 362, connected by the support rod 363, are tightly fitted to the inner wall of the pressure relief seat 361 to form a sealing structure, ensuring that the sulfur hexafluoride insulating gas will not leak. The support rod 363 is made of brittle material, and its designed fracture strength corresponds to the safe pressure threshold of the sealing seat 31.

[0054] When an arc fault causes the pressure inside the sealing seat 31 to rise to a threshold, the baffle 362 generates an outward thrust under the action of the pressure difference, causing the support rod 363 to bear shear stress. When the stress exceeds its design fracture strength, the support rod 363 breaks instantly, and the two baffles 362 slide and separate along the inner wall of the pressure relief seat 361 under the action of pressure, forming a pressure relief channel. Overpressured gas is discharged through this channel via the mounting seat 51.

[0055] like Figure 3 , Figure 13 and Figure 15 As shown, limit rods 25 are fixedly connected to the four corners inside the cabinet door 21. The sealing plate 22 is slidably connected to the four limit rods 25. A spring 28 is fixedly connected between the sealing plate 22 and the inner wall of the cabinet door 21.

[0056] In practical application, during normal operation, the second spring 28 is in a pre-compressed state, providing a continuous thrust to the sealing plate 22 toward the sealing seat 31, so that it fits tightly against the end face of the sealing seat 31. The four limiting rods 25 pass through the four corners of the sealing plate 22 to avoid sealing failure due to tilting.

[0057] When an electric arc fault occurs inside the cabinet, the internal pressure of the sealing seat 31 rises sharply, and the resulting impact force is transmitted to the second spring 28 through the sealing plate 22. At this time, the second spring 28 undergoes elastic compression deformation, absorbing part of the impact energy and reducing the destructive force on the hinge and sealing structure of the cabinet door 21.

[0058] like Figure 3 and Figure 9 As shown, the outer side of the sealing seat 31 is fixedly connected to the mounting sleeve 61, and the inner side of the mounting sleeve 61 is slidably connected to the piston 62. The inner wall of the cabinet 1 is provided with a slot that matches the piston 62.

[0059] In practical applications, when sulfur hexafluoride insulating gas is filled into the sealing seat 31, the gas pressure pushes the piston 62 to engage with the groove on the inner wall of the cabinet 1, thereby achieving a seal between the cabinet door 21 and the cabinet 1 and improving the safety of opening the cabinet door 21.

[0060] like Figure 7 and Figure 9 As shown, multiple dustproof seats 54 are fixedly installed on the outside of the cabinet 1, and the heat dissipation pipe 55 is slidably installed inside the dustproof seat 54 through one end of the cabinet 1.

[0061] In practical applications, the dustproof seat 54 can prevent dust from entering the heat dissipation pipe 55, thereby improving the protection of the heat dissipation pipe 55.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent adaptive arc fault suppression and energy diversion distribution cabinet, comprising a cabinet (1), characterized in that: An inhibition component (2) is provided on the outside of the cabinet (1). A sealing component (3) and a heat dissipation component (5) are provided inside the cabinet (1). A fixing plate (6) is fixedly connected inside the cabinet (1). The inhibition component (2) includes a cabinet door (21) that is hinged to the cabinet (1) by a hinge. A sealing plate (22) is slidably connected inside the cabinet door (21). A flow divider (23) is fixedly connected inside the sealing plate (22). A high-pressure dry powder storage bottle (24) is movably installed on the outside of the sealing plate (22). A sealing block (26) is slidably connected inside the flow divider (23). Two sets of spray holes are opened at one end of the flow divider (23) near the sealing component (3). A spring (27) is fixedly connected between the sealing block (26) and the inner wall of the flow divider (23). The sealing assembly (3) includes a sealing seat (31) that is slidably installed in the cabinet (1) via a slide rail (32). A connecting plate (39) is slidably connected inside the cabinet (1). A movable seat (37) is fixedly connected to the upper and lower ends of the connecting plate (39). A movable plate (33) is rotatably connected inside the movable seat (37). A heat dissipation plate (34) that penetrates into the sealing seat (31) is fixedly connected inside the fixed plate (6). A pressure relief mechanism (36) is symmetrically arranged inside the sealing seat (31). An air inlet valve (4) is fixedly connected to the outside of the sealing seat (31), and the air inlet valve (4) passes through the cabinet (1).

2. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 1, wherein: The heat dissipation assembly (5) includes a mounting base (51), a cross-flow fan (52), and a heat sink (53). The cross-flow fan (52) is fixedly installed at the bottom of the cabinet (1), and the heat sink (53) is fixedly installed at the top of the cabinet (1). The cross-flow fan (52) and the heat sink (53) are both connected to the mounting base (51). Multiple partitions (56) are fixedly connected inside the mounting base (51). A flow-constricting block (57) is symmetrically fixedly connected between every two adjacent partitions (56). Multiple heat dissipation pipes (55) are fixedly installed inside the heat dissipation plate (34). One end of the heat dissipation pipe (55) passes through the mounting base (51), and the other end of the heat dissipation pipe (55) passes between two flow-constricting blocks (57).

3. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 2, wherein: The pressure relief mechanism (36) includes a pressure relief seat (361) fixedly installed inside the sealing seat (31), and a baffle (362) is slidably connected inside the pressure relief seat (361). A plurality of support rods (363) are fixedly connected between the two baffles (362).

4. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 2, wherein: Limiting rods (25) are fixedly connected to the four corners inside the cabinet door (21). The sealing plate (22) is slidably connected to the four limiting rods (25). A spring (28) is fixedly connected between the sealing plate (22) and the inner wall of the cabinet door (21).

5. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 2, wherein: The movable plate (33) is symmetrically fixedly connected to the outer side of the guide shaft (35), and the movable seat (37) is fixedly connected to the fixed plate (6) by a spring (38).

6. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 2, wherein: The outer side of the sealing seat (31) is fixedly connected with a mounting sleeve (61), the inner side of the mounting sleeve (61) is slidably connected with a piston (62), and the inner wall of the cabinet body (1) is provided with a clamping groove matched with the piston (62).

7. The intelligent self-adapting arc fault mitigation and energy diversion switchgear of claim 3, wherein: A plurality of dustproof seats (54) are fixedly installed on the outer side of the cabinet body (1), and one end of the heat dissipation pipe (55) penetrates through the cabinet body (1) and is slidably installed in the inner side of the dustproof seat (54).

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