Power distribution cabinet with short circuit prevention function

Abstract

The invention discloses a power distribution cabinet with an anti-short-circuit function, and relates to the technical field of power distribution cabinets, the power distribution cabinet with the anti-short-circuit function comprises a cabinet body, a moisture-proof device, a cleaning device and a limiting device, a cabinet door is rotatably installed in the cabinet body, a circular opening is formed in the surface of the cabinet body, and the moisture-proof device is arranged in the circular opening. A wire arrangement plate is fixedly installed at a circular opening formed in the surface of the cabinet body, a fan is fixedly installed on the surface of the wire arrangement plate, and the moisture-proof device comprises a humidity sensor, a motor, a lantern ring, a moisture-proof plate, a first ventilation box, a telescopic pressing rod, a pressing plate, a telescopic push rod and a sliding plate, so that smooth air flow is ensured, heat generated by equipment is effectively taken away, and the service life of the equipment is prolonged. And meanwhile, the moisture-proof plate can effectively prevent humid air from entering the interior of the cabinet body in rainy days, so that a dry working environment in the cabinet body is maintained, short circuit of equipment caused by the humid environment is avoided, and the safety of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and specifically relates to a distribution cabinet with a short - circuit prevention function. Background Technique

[0002] Power transmission and distribution: Power cabinets are mainly used for the transmission and distribution of electrical energy in the power system. Their functions include the conversion, control, and protection of electrical energy to ensure that electricity can be supplied to each load efficiently and safely.

[0003] The patent with the patent publication number CN214849629U relates to a distribution cabinet with a short - circuit prevention function. It includes a distribution cabinet body, a cabinet door hinged to one side of the front end face of the distribution cabinet body, and a wiring terminal group installed inside the distribution cabinet body. A layer of dust - proof mesh board is provided on the inner wall of the distribution cabinet body. A moisture - proof box is provided in the installation opening, and several moisture - proof tubes for the internal heat dissipation of the distribution cabinet body are provided in the moisture - proof box. A moisture - proof mechanism for preventing short - circuits of the lines is provided inside the moisture - proof tubes; the structure of this patent is simple. Through the moisture - proof mechanism, it is convenient to prevent rainwater from entering the distribution cabinet body, convenient to dry the air flow passing through the moisture - proof tubes, and convenient to effectively reduce the moisture content in the air flow, thereby avoiding the short - circuit phenomenon caused by the moisture in the air flow to the lines inside the distribution cabinet body and improving the short - circuit prevention effect during the internal heat dissipation of the distribution cabinet body; through the T - shaped moisture - proof tube setting, the short - circuit prevention performance of the distribution cabinet body in rainy days is effectively improved.

[0004] In the above - mentioned patent, through the moisture - proof mechanism, it is convenient to prevent rainwater from entering the distribution cabinet body, convenient to dry the air flow passing through the moisture - proof tubes, and convenient to dry the air flow passing through the moisture - proof tubes, and convenient to effectively reduce the moisture content in the air flow. However, there is no device for adjusting and closing the ventilation opening according to humidity installed at the ventilation opening of the distribution cabinet. If encountering bad weather, rainwater and humid air will enter the cabinet body, thereby increasing the short - circuit risk. Therefore, a distribution cabinet with a short - circuit prevention function is designed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a distribution cabinet with a short - circuit prevention function, which solves the problems raised in the above - mentioned background technique.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A power distribution cabinet with a short-circuit prevention function, including a cabinet body, including a moisture-proof device. A cabinet door is rotatably installed inside the cabinet body. A circular opening is provided on the surface of the cabinet body. A wire arranging board is fixedly installed at the circular opening provided on the surface of the cabinet body. A fan is fixedly installed on the surface of the wire arranging board. A chassis is fixedly installed on the surface of the cabinet body. The moisture-proof device includes a humidity sensor, a motor, a collar, a moisture-proof board, a ventilation box one, a telescopic pressure rod, a pressing plate, a telescopic push rod, and a sliding plate. The humidity sensor is fixedly installed on the inner wall of the cabinet body. The motor is fixedly installed inside the chassis. The collar is fixedly installed at the output end of the motor. When starting to move downward, the motor drives the collar to move downward. At the same time, the movement of the collar drives the movement of the moisture-proof board. The moisture-proof board is sleeved on the surface of the collar. The ventilation box one is fixedly installed on the surface of the cabinet body. A chute one is provided on the surface of the ventilation box one. The pressing plate is slidably installed in the chute one provided on the surface of the ventilation box one. The telescopic pressure rod is fixedly installed at the top of the pressing plate. The telescopic push rod is fixedly installed on the surface of the ventilation box one. The sliding plate is fixedly installed at the free end of the telescopic push rod. When the pressing plate moves downward, the gas in the chute one is fully compressed. Subsequently, the pressing plate moves to contact and squeeze the sliding plate to move in the direction close to the telescopic push rod, releasing the restriction on the circular ventilation opening at the bottom of the inner wall of the chute one.

[0007] According to the above technical solution, the humidity sensor includes an induction module and a control module. The control module is electrically connected to the motor. The shape of the collar is set as two upper and lower circular rings connected. The shape of the moisture-proof board is set as an L shape. A U-shaped chute is provided at the top of the moisture-proof board. The moisture-proof board can maintain a dry environment, which helps to maintain the performance of the insulating material and ensure that it can still effectively prevent current leakage under high voltage.

[0008] According to the above technical solution, a circular groove is provided at the bottom of the chute one provided on the surface of the ventilation box one. The circular groove is used for gas circulation. The top of the sliding plate is a slope. The top of the sliding plate is set as a slope. The circular groove isolates the gas from the chute one, enhancing the gas circulation volume while releasing the restriction on the circular ventilation opening at the bottom of the inner wall of the chute one.

[0009] According to the above technical solution, the cleaning device includes a first linkage block, a linkage rod, a second linkage block, a storage plate, a slide rail, a fixing plate, a sliding strip, a brush plate, a dust pushing plate, a second ventilation box, and a waste box. The first linkage block is fixedly installed on the surface of the cabinet door. The linkage rod is rotatably installed at the rotating end of the first linkage block. The second linkage block is rotatably installed at the end of the linkage rod far from the first linkage block. The storage plate is fixedly installed at the end of the second linkage block far from the linkage rod. The slide rail is fixedly installed on the surface of the cabinet body. The fixing plate is fixedly installed on the surface of the storage plate. The sliding strip is fixedly installed on the surface of the storage plate. The movement of the storage plate also drives the sliding strip to move. The movement of the sliding strip drives the brush plate to move. The brush plate moves to brush off the dust and impurities attached to the ventilation opening of the second ventilation box. The brush plate is fixedly installed on the surface of the sliding strip. The dust pushing plate is fixedly installed on the surface of the storage plate. The second ventilation box is fixedly installed on the surface of the cabinet body. The waste box is slidably installed on the surface of the second ventilation box.

[0010] According to the above technical solution, the sliding strip is shaped like an L shape, and the sliding strip is slidably connected to the inner wall of the second ventilation box. Regular cleaning can reduce the accumulation of dust and impurities, which may cause short circuits in the electrical components inside the power distribution cabinet.

[0011] According to the above technical solution, the sliding strip is slidably connected to the surface of the second ventilation box, and the dust pushing plate is at the bottom of the second ventilation box to centrally clean the dust at the bottom, preventing the accumulation of dust and impurities from causing the second ventilation box to malfunction, further leading to an excessive temperature in the cabinet body and then causing a short circuit.

[0012] According to the above technical solution, the limiting device includes an L-shaped plate, a dehumidification box, a placement block, a third linkage block, a baffle, a fixing block, a drying box, and a box door. The L-shaped plate is fixedly installed on the circumferential surface of the collar. The dehumidification box is fixedly installed on the surface of the cabinet body. The placement block is fixedly installed on the surface of the dehumidification box. The third linkage block is fixedly installed on the surface of the dehumidification box. The baffle is rotatably connected to the rotating end of the third linkage block. The fixing block is fixedly installed on the surface of the dehumidification box. The drying box is fixedly installed on the inner wall of the dehumidification box. A second chute is provided on the surface of the dehumidification box. The box door is slidably installed on the inner wall of the second chute. When the baffle passes over the placement block, the telescopic spring rod in the placement block groove rebounds. The operator places the baffle on the placement plate to prevent the baffle from falling when the operator pulls out the box door, which may cause injury to the staff or damage to the box door, thus increasing the need for maintenance and replacement. Subsequently, the operator pulls out the box door and extracts the moisture-proof board for replacement.

[0013] According to the above technical solution, an L-shaped chute is provided on the surface of the box door. The L-shaped plate is slidably connected to the box door. A plurality of circular ventilation openings are provided on the surface of the drying box. When the moisture-proof board is reset, at the same time, the L-shaped plate also moves upward and resets. When the L-shaped plate resets, the L-shaped plate releases the limit on the box door.

[0014] The present invention provides a power distribution cabinet with short-circuit protection function. It has the following beneficial effects: (1) When the humidity sensor senses that the humidity in the distribution cabinet has reached a certain threshold, the distribution cabinet with anti-short circuit function will transmit a signal to the motor through its internal control module. After the motor receives the signal transmitted by the humidity sensor, the motor starts to move downward. The movement of the motor drives the ring to move downward. At the same time, the movement of the ring drives the moisture-proof plate to move, and the dust and impurities attached to the ventilation box are cleaned. By cleaning the vents, the air flow is ensured to be smooth, effectively taking away the heat generated by the equipment and maintaining the normal working temperature of the system. At the same time, the moisture-proof plate can effectively prevent humid air from entering the interior of the cabinet during rainy weather, maintain a dry working environment inside the cabinet, and prevent the humid environment from causing equipment short circuit, thereby improving the safety of the equipment.

[0015] (2) For the power distribution cabinet with anti-short-circuit function, when the motor starts, the ring moves upward, and at the same time, the ring moves upward to drive the moisture-proof plate and resets. When the moisture-proof plate is reset, the L-shaped plate also moves upward and resets. When the L-shaped plate is reset, the L-shaped plate releases the limit on the box door. At this time, the operator pulls up the baffle, and the baffle rotates around the linkage block three. The limit device can prevent the box door from opening at an inappropriate time to avoid accidents. In addition, limiting the opening angle of the box door can prevent it from colliding with surrounding equipment or objects, reducing the risk of equipment damage.

[0016] (3) For the power distribution cabinet with anti-short-circuit function, when the operator opens the cabinet door, the movement of the cabinet door drives the linkage block 1 to move, and the movement of the linkage block 1 drives the linkage rod to rotate with the linkage end of the linkage block 1 as the center. The movement of the linkage rod drives the linkage block 2 to move, and at the same time, the movement of the linkage block 2 drives the storage plate to move in the direction close to the linkage block 2. At the same time, the movement of the storage plate drives the fixed plate to move, so as to prevent the accumulation of dust and impurities from causing short circuits in the electrical components inside the power distribution cabinet, thereby causing faults or fires. Regular cleaning can reduce such risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the moisture-proof device of the present invention; Figure 4 This is a schematic diagram of the position structure of the dehumidification plate and the ventilation box of the present invention; Figure 5 This is a schematic diagram of the position structure of the pressing plate and the sliding plate of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part A in the middle; Figure 7 Schematic diagram of the cleaning device structure of the present invention; Figure 8 Internal structure cross-sectional view of the cleaning structure of the present invention; Figure 9 Schematic diagram of the limiting device structure of the present invention; Figure 10 For the present invention Figure 9 Enlarged structure schematic diagram of part B in; Figure 11 Schematic diagram of the position structure of the L-shaped plate and the box door of the limiting device of the present invention.

[0018] In the figure: 1, cabinet body; 2, cabinet door; 3, wire arranging board; 4, fan; 5, chassis; 71, humidity sensor; 72, motor; 73, collar; 74, moisture-proof board; 75, ventilation box 1; 76, telescopic pressure rod; 77, pressing plate; 78, telescopic push rod; 79, sliding plate; 81, linkage block 1; 82, linkage rod; 83, linkage block 2; 84, storage plate; 85, slide rail; 86, fixing plate; 87, sliding strip; 88, brush plate; 89, ash pushing plate; 810, ventilation box 2; 811, waste box; 91, L-shaped plate; 92, dehumidification box; 93, placing block; 94, linkage block 3; 95, baffle; 96, fixing block; 97, drying box; 98, box door. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 10, an embodiment of the present invention is: A power distribution cabinet with a short - circuit prevention function includes a cabinet body 1, which includes a moisture - proof device and a limiting device. A cabinet door 2 is rotatably installed inside the cabinet body 1. A circular opening is provided on the surface of the cabinet body 1. A wiring board 3 is fixedly installed at the circular opening provided on the surface of the cabinet body 1. A fan 4 is fixedly installed on the surface of the wiring board 3. A chassis 5 is fixedly installed on the surface of the cabinet body 1. The moisture - proof device includes a humidity sensor 71, a motor 72, a collar 73, a moisture - proof board 74, a ventilation box 75, a telescopic pressure rod 76, a pressing plate 77, a telescopic push rod 78, and a sliding plate 79. The humidity sensor 71 is fixedly installed on the inner wall of the cabinet body 1. The motor 72 is fixedly installed inside the chassis 5. The collar 73 is fixedly installed at the output end of the motor 72. The moisture - proof board 74 is sleeved on the surface of the collar 73. The ventilation box 75 is fixedly installed on the surface of the cabinet body 1. A first chute is provided on the surface of the ventilation box 75. The pressing plate 77 is slidably installed in the first chute provided on the surface of the ventilation box 75. The telescopic pressure rod 76 is fixedly installed on the top of the pressing plate 77. The telescopic push rod 78 is fixedly installed on the surface of the ventilation box 75. The sliding plate 79 is fixedly installed at the free end of the telescopic push rod 78. By cleaning the ventilation openings, it can ensure smooth air flow, effectively take away the heat generated by the equipment, maintain the normal operating temperature of the system, and reduce the short - circuit of the circuit caused by high temperature.

[0021] The humidity sensor 71 includes an induction module and a control module. The control module is electrically connected to the motor 72. The shape of the collar 73 is set as two upper and lower circular rings connected. The shape of the moisture - proof board 74 is set as an L - shape, and a U - shaped chute is provided at the top of the moisture - proof board 74. A dry environment helps to maintain the performance of the insulating material, ensuring that it can still effectively prevent current leakage under high voltage.

[0022] A circular groove is provided at the bottom of the first chute provided on the surface of the ventilation box 75. The circular groove provided at the bottom of the first chute is used for gas circulation. The top of the sliding plate 79 is a slope. The top of the sliding plate 79 is set as a slope, and the slope facilitates faster movement and improves work efficiency when in contact and extrusion.

[0023] When the present embodiment is working, when the humidity sensor 71 senses that the humidity in the power distribution cabinet has reached a certain threshold, it will transmit a signal to the motor 72 through the control module inside it. The motor 72 receives the signal transmitted by the humidity sensor 71, and the motor 72 starts to drive the collar 73 to move downward. At the same time, the movement of the collar 73 drives the moisture-proof plate 74 to move. At the same time, the moisture-proof plate 74 contacts and squeezes the telescopic pressure rod 76 downward. The telescopic pressure rod 76 moves downward and squeezes and drives the pressure plate 77 to move downward. The pressure plate 77 moves downward to fully compress the gas in the slide groove 1, and the pressure plate 77 moves in the direction close to the sliding plate 79. Subsequently, the pressure plate 77 moves to contact and squeeze the sliding plate 79 to move in the direction close to the telescopic push rod 78, thereby releasing the restriction on the circular vent at the bottom of the inner wall of the slide groove 1. At the same time, the compressed The gas is ejected from the circular air vents and the interior of the ventilation box 75 is cleaned, and the dust and impurities attached to the ventilation box 75 are cleaned. By cleaning the ventilation holes, the air flow can be ensured to be smooth, and the heat generated by the equipment can be effectively taken away, the normal operating temperature of the system can be maintained, the occurrence of failures can be reduced, and the maintenance cost can be reduced. Blocked vents may cause the equipment to overheat, thereby shortening its service life. Jet cleaning can reduce the temperature of the equipment, reduce thermal stress, and extend the service life of the equipment. The moisture-proof plate 74 moves downward to block the surface of the ventilation box 75, which can effectively absorb moisture in the humid air and prevent humid air from entering the interior of the cabinet during rainy weather, thereby maintaining a dry working environment inside the cabinet, preventing equipment short circuits caused by humid environments, and improving the safety of the equipment.

[0024] See also Figures 1 - 10 On the basis of the above-mentioned embodiment, in another embodiment of the present invention, the limiting device comprises an L-shaped plate 91, a dehumidification box 92, a placement block 93, a linkage block three 94, a baffle 95, a fixing block 96, a drying box 97, and a box panel door 98. The L-shaped plate 91 is fixedly mounted on the circumferential surface of the collar 73, the dehumidification box 92 is fixedly mounted on the surface of the cabinet 1, the placement block 93 is fixedly mounted on the surface of the dehumidification box 92, the linkage block three 94 is fixedly mounted on the surface of the dehumidification box 92, the baffle 95 is rotatably connected to the rotating end of the linkage block three 94, the fixing block 96 is fixedly mounted on the surface of the dehumidification box 92, the drying box 97 is fixedly mounted on the inner wall of the dehumidification box 92, a slide groove two is provided on the surface of the dehumidification box 92, and the box panel door 98 is slidably mounted on the inner wall of the slide groove two. The limiting device can prevent the box door from opening at an inappropriate time to avoid accidents, and limiting the opening angle of the box door can prevent it from colliding with surrounding equipment or objects, thereby reducing the risk of equipment damage.

[0025] An L-shaped slide groove is provided on the surface of the box panel door 98, and the L-shaped plate 91 is slidably connected to the box panel door 98. A plurality of circular vents are provided on the surface of the drying box 97, which can keep the equipment dry, thereby reducing the need for maintenance and replacement and extending the service life of the equipment.

[0026] The cleaning device includes a first linkage block 81, a linkage rod 82, a second linkage block 83, a storage plate 84, a slide rail 85, a fixing plate 86, a sliding bar 87, a brush plate 88, a dust pushing plate 89, a second ventilation box 810 and a waste box 811. The first linkage block 81 is fixedly installed on the surface of the cabinet door 2. The linkage rod 82 is rotatably installed at the rotating end of the first linkage block 81. The second linkage block 83 is rotatably installed at the end of the linkage rod 82 away from the first linkage block 81. The storage plate 84 is fixedly installed at the end of the second linkage block 83 away from the linkage rod 82. The slide rail 85 is fixedly installed on the surface of the cabinet body 1. The fixing plate 86 is fixedly installed on the surface of the storage plate 84. The sliding bar 87 is fixedly installed on the surface of the storage plate 84. The brush plate 88 is fixedly installed on the surface of the sliding bar 87. The movement of the sliding bar 87 drives the movement of the brush plate 88. The movement of the brush plate 88 brushes off the dust and impurities attached to the ventilation opening of the second ventilation box 810, preventing the accumulation of dust and impurities from causing a short circuit in the electrical components inside the power distribution cabinet, thus triggering a failure or fire. The dust pushing plate 89 is fixedly installed on the surface of the storage plate 84. The second ventilation box 810 is fixedly installed on the surface of the cabinet body 1. The waste box 811 is slidably installed on the surface of the second ventilation box 810.

[0027] The shape of the sliding bar 87 is set to an L shape. The sliding bar 87 is slidably connected to the inner wall of the second ventilation box 810. Regular cleaning can reduce such risks. And equipment such as transformers and switches inside the power distribution cabinet generate heat during operation.

[0028] The sliding bar 87 is slidably connected to the surface of the second ventilation box 810. The dust pushing plate 89 is at the bottom of the second ventilation box 810. The cleaning of the ventilation opening can ensure smooth air circulation, reduce the equipment temperature, and prevent equipment failure caused by overheating.

[0029] When this embodiment works: When the operator opens the cabinet door 2, the movement of the cabinet door 2 drives the movement of the first linkage block 81. The movement of the first linkage block 81 drives the linkage rod 82 to rotate around the linkage end of the first linkage block 81. The movement of the linkage rod 82 drives the movement of the second linkage block 83. At the same time, the movement of the second linkage block 83 drives the storage plate 84 to move in the direction close to the second linkage block 83. At the same time, the movement of the storage plate 84 drives the movement of the fixing plate 86. And the movement of the storage plate 84 also drives the movement of the sliding bar 87. The movement of the sliding bar 87 drives the movement of the brush plate 88. The movement of the brush plate 88 brushes off the dust and impurities attached to the ventilation opening of the second ventilation box 810, preventing the accumulation of dust and impurities from causing a short circuit in the electrical components inside the power distribution cabinet, thus triggering a failure or fire. Regular cleaning can reduce such risks. And equipment such as transformers and switches inside the power distribution cabinet generate heat during operation. The cleaning of the ventilation opening can ensure smooth air circulation, reduce the equipment temperature, and prevent equipment failure caused by overheating, thereby extending the service life of the equipment.

[0030] When the dehumidification is over, the output end of the motor 72 moves upward to drive the collar 73 to move upward. The upward movement of the collar 73 drives the moisture-proof board 74 to move upward. The upward movement of the moisture-proof board 74 drives the L-shaped plate 91 to move upward. The L-shaped plate 91 moves upward and disengages from the L-shaped chute on the surface of the box door 98, releasing the limit on the box door 98. After the limit is released, the operator pulls up the baffle 95. The baffle 95 rotates around the linkage block three 94. The baffle 95 moves closer to and presses the placement block 93. The spring rod in the groove of the placement block 93 is pressed and moves into the groove. When the baffle 95 passes over the placement block 93, the telescopic spring rod in the groove of the placement block 93 rebounds. The operator places the baffle 95 on the placement block 93 to prevent the baffle 95 from falling when the operator pulls out the box door 98. Subsequently, the operator pulls out the box door 98 and extracts the moisture-proof board 74 for replacement, which can effectively prevent the accidental detachment of the moisture-proof board 74 during the dehumidification of the equipment, resulting in the entry of humid air into the cabinet 1 and causing damage to electronic components. The limiting device can prevent the box door from opening at an inappropriate time to avoid accidents, and limiting the opening angle of the box door can prevent it from colliding with surrounding equipment or items, reducing the risk of equipment damage.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with short-circuit protection function, comprising a cabinet body (1), characterized in that: It also includes moisture-proof devices, cleaning devices and limiting devices; A cabinet door (2) is rotatably mounted inside the cabinet (1), a circular opening is provided on the surface of the cabinet (1), a wiring board (3) is fixedly mounted on the circular opening on the surface of the cabinet (1), a fan (4) is fixedly mounted on the surface of the wiring board (3), and a chassis (5) is fixedly mounted on the surface of the cabinet (1); The moisture-proof device comprises a humidity sensor (71), a motor (72), a collar (73), a moisture-proof plate (74), a ventilation box (75), a telescopic pressure rod (76), a pressure plate (77), a telescopic push rod (78) and a sliding plate (79); the humidity sensor (71) is fixedly mounted on the inner wall of the cabinet (1); the motor (72) is fixedly mounted inside the chassis (5); the collar (73) is fixedly mounted on the output end of the motor (72); the moisture-proof plate (74) is sleeved on the surface of the collar (73); the ventilation box (75) is fixedly mounted on the surface of the cabinet (1); a slide groove (1) is provided on the surface of the ventilation box (75); the pressure plate (77) is slidably mounted on the slide groove (1) provided on the surface of the ventilation box (75); the telescopic pressure rod (76) is fixedly mounted on the top of the pressure plate (77); the telescopic push rod (78) is fixedly mounted on the surface of the ventilation box (75); and the sliding plate (79) is fixedly mounted on the free end of the telescopic push rod (78).

2. A power distribution cabinet with short-circuit protection function according to claim 1, characterized in that: The humidity sensor (71) comprises a sensing module and a control module, the control module is electrically connected to the motor (72), the shape of the collar (73) is set to be two upper and lower circular rings connected, the shape of the moisture-proof plate (74) is set to be L-shaped, and a U-shaped sliding groove is provided on the top of the moisture-proof plate (74).

3. A power distribution cabinet with short-circuit protection function according to claim 2, characterized in that: A circular groove is provided at the bottom of the slide groove 1 provided on the surface of the ventilation box 1 (75), and the top of the sliding plate (79) is an inclined surface. The top of the sliding plate (79) is arranged as an inclined surface.

4. A power distribution cabinet with short-circuit protection function according to claim 3, characterized in that: The cleaning device comprises a linkage block 1 (81), a linkage rod (82), a linkage block 2 (83), a storage plate (84), a slide rail (85), a fixed plate (86), a slide bar (87), a brush plate (88), an ash push plate (89), a ventilation box 2 (810) and a waste box (811), wherein the linkage block 1 (81) is fixedly mounted on the surface of the cabinet door (2), the linkage rod (82) is rotatably mounted on the rotating end of the linkage block 1 (81), the linkage block 2 (83) is rotatably mounted on the end of the linkage rod (82) away from the linkage block 1 (81), and the storage plate (84) is fixedly mounted At the end of the linkage block 2 (83) away from the linkage rod (82), the slide rail (85) is fixedly mounted on the surface of the cabinet (1), the fixed plate (86) is fixedly mounted on the surface of the storage plate (84), the sliding bar (87) is fixedly mounted on the surface of the storage plate (84), the brush plate (88) is fixedly mounted on the surface of the sliding bar (87), the dust pushing plate (89) is fixedly mounted on the surface of the storage plate (84), the ventilation box 2 (810) is fixedly mounted on the surface of the cabinet (1), and the waste box (811) is slidably mounted on the surface of the ventilation box 2 (810).

5. A power distribution cabinet with short-circuit protection function according to claim 4, characterized in that: The shape of the sliding bar (87) is set to be L-shaped, and the sliding bar (87) is slidably connected to the inner wall of the second ventilation box (810).

6. A power distribution cabinet with short-circuit protection function according to claim 5, characterized in that: The sliding bar (87) is slidably connected to the surface of the second ventilation box (810), and the dust pushing plate (89) is connected to the bottom of the second ventilation box (810).

7. A power distribution cabinet with short-circuit protection function according to claim 6, characterized in that: The limiting device comprises an L-shaped plate (91), a dehumidification box (92), a placement block (93), a linkage block three (94), a baffle (95), a fixing block (96), a drying box (97), and a box panel door (98). The L-shaped plate (91) is fixedly mounted on the circumferential surface of the collar (73), the dehumidification box (92) is fixedly mounted on the surface of the cabinet (1), the placement block (93) is fixedly mounted on the surface of the dehumidification box (92), the linkage block three (94) is fixedly mounted on the surface of the dehumidification box (92), the baffle (95) is rotatably connected to the rotation end of the linkage block three (94), the fixing block (96) is fixedly mounted on the surface of the dehumidification box (92), the drying box (97) is fixedly mounted on the inner wall of the dehumidification box (92), a slide groove two is provided on the surface of the dehumidification box (92), and the box panel door (98) is slidably mounted on the inner wall of the slide groove two.

8. A power distribution cabinet with short-circuit protection function according to claim 7, characterized in that: An L-shaped sliding groove is provided on the surface of the box panel door (98), the L-shaped plate (91) is slidably connected to the box panel door (98), and a plurality of circular ventilation openings are provided on the surface of the drying box (97).

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