Power distribution cabinet capable of automatically guiding static electricity

Abstract

The invention discloses a power distribution cabinet capable of automatically guiding static electricity, which comprises a power distribution cabinet shell, supporting bases are mounted at the left end and the right end of the lower surface of the power distribution cabinet shell, and mounting screws penetrate through the supporting bases; the solar photovoltaic panels are symmetrically arranged at the left end and the right end of the waterproof plate, and the solar photovoltaic panels are connected with a connecting power supply through wires; the ion fan is connected with the connecting power supply through a wire; and the connecting plates are symmetrically arranged at the left end and the right end of the ion fan. According to the power distribution cabinet capable of automatically guiding the static electricity, the grounding rod is in contact with the ground by treading the pedal, the static electricity on the power distribution cabinet shell and the connecting cabinet door can be guided to the ground, and static electricity removal protection can be continuously carried out on the interior of the power distribution cabinet through the ion fan; the interior of the power distribution cabinet can be humidified through the water-containing sponge in the placement box, static electricity in the power distribution cabinet can be effectively reduced, and the wires are separated and protected through the wire sleeves, so that the wires are prevented from being affected by static electricity due to tight attachment.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, specifically to a power distribution cabinet with automatic static electricity conduction. Background Technology

[0002] Distribution cabinets are ubiquitous in daily life. They enable the rational and sufficient distribution of circuits. By adding more distribution cabinets, the scope of the fault can be effectively controlled when a line fault occurs, facilitating maintenance. In addition, distribution cabinets have various built-in protection measures, which can effectively prevent short circuits.

[0003] A power distribution cabinet with static electricity elimination function, disclosed in CN210273141U, includes a main body. The main body has fixed plates connected by connecting wires, the other end of which is connected to an isolation mesh. A grounding wire is provided on the isolation mesh, and a dust collection grid is located at the lower end of the mesh. A sliding cabinet is located outside the dust collection grid. A fixed base is connected to one side of the main body, and an ionization gun is mounted on the fixed base. The side of the main body has uniformly distributed triangular strip-shaped protrusions, and the lower end of each protrusion has a through hole. A U-shaped groove is located at the lower inner side of the main body. The sliding cabinet is a cabinet structure, with a handle on one side for pushing and pulling. The lower end of the sliding cabinet has a strip-shaped protrusion that matches the shape of the U-shaped groove in the main body, and a groove is formed at the upper end of the sliding cabinet. This power distribution cabinet with static elimination function can effectively eliminate static electricity during use, minimize the hazards of static electricity during the use of the power distribution cabinet, and improve the service life of the electronic components inside the power distribution cabinet.

[0004] However, there are some problems in the use of the above-mentioned distribution cabinet. For example, the above-mentioned distribution cabinet only uses a grounding wire to eliminate static electricity. Therefore, during use, only the cabinet body is grounded for protection. As a result, when the switch cabinet is opened, the worker's hand will still be shocked by the static electricity of the distribution cabinet when it comes into contact with the cabinet door. It is difficult to achieve a good anti-static function.

[0005] A power distribution cabinet with electrostatic discharge function, disclosed in CN210608210U, includes a cabinet body, a base at the lower end of the cabinet body, a spirit level in the middle of the base, a hinged door at the front center of the cabinet body, and a handle on one side of the front of the door. An inclined top cover is located above the cabinet body and is connected to the cabinet body via a fixing post. Water channels are provided on the sides of the inclined top cover. The upper center of the cabinet body, located on the inclined top cover... A drive device is installed at the bottom. This utility model allows for the adjustment of the adjustable support column by adjusting the handle, and with the level display of the spirit level, the cabinet can be adjusted to correct unevenness, improving the practicality of the device. The drive device drives the fan to heat the inside of the cabinet. The electrode plate in the electrostatic dust collection plate uses electrostatic action to attract fine dust in the air and adsorb it into the electrostatic dust collection holes, effectively preventing dust from falling onto the electronic components inside the distribution cabinet, thereby improving the service life of the distribution cabinet and improving heat dissipation, making the distribution cabinet with electrostatic treatment function safer.

[0006] However, some problems also exist in the use of the above-mentioned power distribution cabinet. For example, the device only uses electrostatic dust collection plates set on both sides to absorb dust, thus lacking a structure for static electricity treatment. As a result, a lot of static electricity is likely to remain inside the power distribution cabinet without being treated. During maintenance, static electricity can easily shock workers' hands, and a lot of static electricity can affect the normal operation of internal components.

[0007] To address the aforementioned issues, there is an urgent need for innovative design based on the existing power distribution cabinet. Summary of the Invention

[0008] The purpose of this invention is to provide a power distribution cabinet with automatic static electricity conduction, in order to solve the problem mentioned in the background art that only the cabinet body is grounded for protection, but workers' hands will still be shocked by the static electricity of the power distribution cabinet when they come into contact with the cabinet door, and a lot of static electricity is easily accumulated inside the power distribution cabinet without being dealt with, which affects the normal operation of the internal components.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a power distribution cabinet with automatic electrostatic discharge, comprising a power distribution cabinet shell, supporting bases installed at the left and right ends of its lower surface, and mounting screws passing through the supporting bases, and a connecting cabinet door installed on the power distribution cabinet shell via hinges, while a waterproof plate is provided at the upper end of the power distribution cabinet shell;

[0010] Also includes:

[0011] Solar photovoltaic panels are symmetrically arranged at the left and right ends of the waterproof board, and the solar photovoltaic panels are interconnected with a power source through wires;

[0012] The ion fan is connected to the power supply via wires.

[0013] A connecting plate is symmetrically arranged at the left and right ends of the ion fan, and a first connecting screw passes through the connecting plate. The first connecting screw is connected to the first fixing plate through a threaded hole. The first fixing plate is installed on the outer shell of the power distribution cabinet.

[0014] Fixed sleeves are symmetrically arranged at both ends of the lower surface of the distribution cabinet shell;

[0015] A push spring is installed in a groove on the fixed sleeve, and the push spring is in contact with the moving plate, and the moving plate is in contact with the fixed sleeve.

[0016] Limiting sliders are symmetrically arranged at the left and right ends of the moving plate, and the limiting sliders are slidably connected to the fixed sleeve through the grooves opened on the fixed sleeve.

[0017] The pedal has movable plates symmetrically arranged at both ends of its upper surface;

[0018] A grounding rod is connected to the foot pedal, and the grounding rod is connected to a conductive plate via a connecting wire;

[0019] The conductive plate is attached to the connecting cabinet door, which is made of metal, and the connecting cabinet door is attracted to the connecting magnet, which is located at the left and right ends of the conductive plate.

[0020] The partition plates are evenly spaced on the inner surface of the distribution cabinet shell, and a second connecting screw passes through the partition plate, and the second connecting screw is connected to the fixing nut.

[0021] The mounting panel has second connecting screws symmetrically arranged at both ends of its lower surface, and a control device is provided on the mounting panel.

[0022] The conductor sleeve extends through the partition plate and the outer casing of the distribution cabinet.

[0023] Preferably, a second fixing plate is symmetrically arranged on the inner surface of the distribution cabinet shell, and the second fixing plate is connected to the adjusting screw through a threaded hole at its upper end. With the above structure, it is convenient to support the adjusting screw without affecting the rotation of the adjusting screw.

[0024] Preferably, the adjusting screw is rotationally connected to the control board through a bearing mounted on the control board, and a guiding slider is installed at the lower end of the control board. The guiding slider is slidably connected to the power distribution cabinet housing through a groove opened on the power distribution cabinet housing. With the above structure, it is convenient to limit the movement range of the control board under the action of the guiding slider.

[0025] Preferably, three groups of limiting rods are equidistantly arranged on the control board, and each group of limiting rods has two. The limiting rods are snap-fitted to the placement box through grooves opened on the placement box. With the above structure, it is convenient to snap-fix the placement box under the action of the limiting rods.

[0026] Preferably, fixing spring pieces are installed in grooves opened on a plate-like structure arranged inside the placement box. The fixing spring pieces are symmetrically arranged at both ends of the clamping plate, and the clamping plate is mutually adhered to the plate-like structure arranged inside the placement box. With the above structure, it is convenient to snap-fix the clamping plate to the placement box under the action of the fixing spring pieces.

[0027] Preferably, the clamping plates are symmetrically arranged at the lower end of the ventilation plate, and the ventilation plate is provided with dense through holes. With the above structure, it is convenient for air to contact the water-containing sponge placed in the placement box under the action of the ventilation plate.

[0028] Preferably, fastening screws penetrate through a plate-like structure arranged at the upper end of the power distribution cabinet housing, and the fastening screws are connected to the dust-proof plate through threaded holes opened on the dust-proof plate. With the above structure, it is convenient to install and fix the dust-proof plate under the action of the fastening screws.

[0029] Preferably, dense through holes are opened at the middle position of the dust-proof plate, and the lower end of the dust-proof plate is mutually adhered to the upper surface of the power distribution cabinet housing. A through groove is opened at the middle position of the upper end of the power distribution cabinet housing. With the above structure, it is convenient to dust-filter the air entering the power distribution cabinet under the action of the dust-proof plate.

[0030] Preferably, a sealing plate is installed on the power distribution cabinet housing. The sealing plate is arranged in a "return" - shaped plate-like structure, and the sealing plate is mutually adhered to the dust-proof plate through a groove opened at the lower end of the dust-proof plate. With the above structure, it is convenient to increase the sealing performance at the edge position between the power distribution cabinet housing and the dust-proof plate under the action of the sealing plate.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] (1) The electrostatic discharge automatic distribution cabinet is equipped with a foot pedal, a grounding rod, connecting wires and a conductive plate. When it is necessary to inspect the inside of the distribution cabinet, the foot pedal is stepped on, so that the grounding rod contacts the ground. The static electricity on the outer shell of the distribution cabinet and the connecting cabinet door can be conducted to the ground, which can effectively prevent workers from being shocked when opening the distribution cabinet, so as to avoid causing discomfort to the workers. In addition, the ion fan can continuously protect the inside of the distribution cabinet from static electricity, so as to avoid the normal use of the electronic components inside the distribution cabinet due to excessive static electricity inside the distribution cabinet.

[0033] (2) The electrostatic automatic current-dissipating distribution cabinet is equipped with an adjusting screw, a control board, a limiting rod, a placement box, a fixing spring, a locking plate, and a ventilating plate. The limiting rod can lock and fix the placement box, thereby effectively preventing the placement box from moving during subsequent use. The water-containing sponge in the placement box can humidify the inside of the distribution cabinet, thereby effectively reducing the static electricity in the distribution cabinet. The wire sleeve separates and protects the wires, preventing the wires from getting too hot due to tight contact, and also preventing the wires from being affected by static electricity due to tight contact. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the main cross-sectional structure of the power distribution cabinet casing of the present invention;

[0035] Figure 2 This is a schematic diagram of the main structure of the cabinet door connection according to the present invention;

[0036] Figure 3 This is a side cross-sectional view of the placement box of the present invention;

[0037] Figure 4 This is a schematic diagram of the main cross-sectional structure of the control board of the present invention;

[0038] Figure 5 This is a top view cross-sectional structural diagram of the limiting rod of the present invention;

[0039] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0040] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point B;

[0041] Figure 8 This is a schematic diagram of the three-dimensional structure of the pedal of the present invention;

[0042] Figure 9 This is a three-dimensional cross-sectional view of the sealing plate of the present invention.

[0043] In the diagram: 1. Distribution cabinet outer shell; 2. Support base; 3. Mounting screw; 4. Connecting cabinet door; 5. Waterproof plate; 6. Solar photovoltaic panel; 7. Power supply connection; 8. Ionizing fan; 9. Connecting plate; 10. First connecting screw; 11. First fixing plate; 12. Fixing sleeve; 13. Push spring; 14. Moving plate; 15. Limiting slider; 16. Foot pedal; 17. Grounding rod; 18. Connecting wire; 19. Conductive plate; 20. Connecting magnet; 21. Divider plate; 22. Second connecting screw; 23. Fixing nut; 24. Mounting panel; 25. Control device; 26. Wire sleeve; 27. Second fixing plate; 28. Adjusting screw; 29. ​​Control plate; 30. Guide slider; 31. Limiting rod; 32. Placement box; 33. Fixing spring; 34. Clamping plate; 35. Ventilation plate; 36. Fastening screw; 37. Dustproof plate; 38. Sealing plate. Detailed Implementation

[0044] 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 scope of protection of the present invention.

[0045] Please see Figure 1-9, the present invention provides a technical solution: an electrostatic automatic diversion power distribution cabinet, including a power distribution cabinet housing 1, with support bases 2 installed at the left and right ends of its lower surface, and mounting screws 3 passing through the support bases 2. A connecting cabinet door 4 is installed on the power distribution cabinet housing 1 through hinges. At the same time, a waterproof plate 5 is provided at the upper end of the power distribution cabinet housing 1; solar photovoltaic panels 6 are symmetrically arranged at the left and right ends of the waterproof plate 5, and the solar photovoltaic panels 6 are connected to a connection power supply 7 through wires; an ion blower 8 is connected to the connection power supply 7 through a wire; connecting plates 9 are symmetrically arranged at the left and right ends of the ion blower 8, and first connecting screws 10 pass through the connecting plates 9. The first connecting screws 10 are connected to a first fixing plate 11 through threaded holes opened on the first fixing plate 11. At the same time, the first fixing plate 11 is installed on the power distribution cabinet housing 1; second fixing plates 27 are symmetrically arranged on the inner surface of the power distribution cabinet housing 1, and the second fixing plates 27 are connected to adjusting screws 28 through threaded holes opened at their upper ends; the adjusting screws 28 are rotationally connected to a control board 29 through bearings installed on the control board 29. A guiding slider 30 is installed at the lower end of the control board 29, and the guiding slider 30 is slidably connected to the power distribution cabinet housing 1 through a groove opened on the power distribution cabinet housing 1; three groups of limiting rods 31 are equidistantly arranged on the control board 29, and each group of limiting rods 31 has a total of two. The limiting rods 31 are snap-fitted to a placement box 32 through a groove opened on the placement box 32; fixing reeds 33 are installed in grooves opened on a plate-like structure inside the placement box 32. The fixing reeds 33 are symmetrically arranged at both ends of a snap-fitting plate 34, and the snap-fitting plate 34 is in contact with the plate-like structure inside the placement box 32; the snap-fitting plates 34 are symmetrically arranged at the lower end of a ventilation plate 35, and the ventilation plate 35 is provided with densely distributed through holes; a fastening screw 36 passes through a plate-like structure at the upper end of the power distribution cabinet housing 1, and the fastening screw 36 is connected to a dust-proof plate 37 through a threaded hole opened on the dust-proof plate 37; densely distributed through holes are opened at the middle position of the dust-proof plate 37, and the lower end of the dust-proof plate 37 is in contact with the upper surface of the power distribution cabinet housing 1. At the same time, a through groove is opened at the middle position of the upper end of the power distribution cabinet housing 1; a sealing plate 38 is installed on the power distribution cabinet housing 1, and the sealing plate 38 is arranged in a "return" - shaped plate-like structure, and the sealing plate 38 is in contact with the dust-proof plate 37 through a groove opened at the lower end of the dust-proof plate 37;

[0046] Solar photovoltaic panels 6 convert solar energy into electrical energy, which is stored in the power supply 7. Then, the ion fan 8 starts working, eliminating static electricity inside the distribution cabinet housing 1. This prevents excessive static electricity from affecting internal electronic components. The dustproof plate 37 prevents dust from entering the distribution cabinet housing 1. When replacing the dustproof plate 37, turn the fastening screw 36 away from the dustproof plate 37 until it is no longer connected to the threaded hole. Then, pull the dustproof plate 37 upwards away from the sealing plate 38 until it is removed. The dustproof plate 37 is then placed inside the housing 32 containing... The water sponge can increase the humidity of the air, thereby reducing static electricity by controlling the humidity. When the sponge needs to be replaced, pull the vent plate 35 upwards, causing it to move away from the placement box 32. At this time, the fixing spring 33 installed on the locking plate 34 will start to squeeze and deform against the fixing spring 33 installed on the placement box 32, thereby adding an appropriate amount of water to the sponge in the placement box 32. When the placement box 32 needs to be removed, rotate the adjusting screw 28. Since the adjusting screw 28 is connected to the control plate 29 through the bearing installed on the control plate 29, as the adjusting screw 28 rotates, the control plate 29 moves away from the placement box 32 under the action of the guide slider 30 until the limiting rod 31 installed on the control plate 29 no longer fits against the groove on the placement box 32. At this time, the placement box 32 can be pulled upwards, thereby removing the placement box 32 for replacement.

[0047] Fixed sleeves 12 are symmetrically arranged at the left and right ends of the lower surface of the distribution cabinet housing 1; push springs 13 are installed in the grooves opened on the fixed sleeves 12, and push springs 13 and moving plates 14 are in contact with each other, and moving plates 14 and fixed sleeves 12 are in contact with each other; limit sliders 15 are symmetrically arranged at the left and right ends of the moving plates 14, and limit sliders 15 are slidably connected to the fixed sleeves 12 through the grooves opened on the fixed sleeves 12; foot pedals 16 have moving plates 14 symmetrically arranged at the left and right ends of their upper surface; grounding rods 17 are connected to the foot pedals 16, and grounding rods 17 are connected to the conductive plates through connecting wires 18. 19 are interconnected; conductive plate 19 is attached to the connecting cabinet door 4, and the connecting cabinet door 4 is made of metal and is attracted to the connecting magnet 20, and the connecting magnet 20 is set at the left and right ends of the conductive plate 19; partition plate 21 is set at equal intervals on the inner surface of the distribution cabinet shell 1, and the partition plate 21 is penetrated by a second connecting screw 22, and the second connecting screw 22 is connected to the fixing nut 23; mounting panel 24 has second connecting screws 22 symmetrically arranged at the left and right ends of its lower surface, and the mounting panel 24 is equipped with a control device 25; wire sleeve 26 passes through the partition plate 21 and the distribution cabinet shell 1;

[0048] Because the partition plate 21 is installed on the inner surface of the distribution cabinet housing 1, and the wire sleeve 26 passes through the partition plate 21 and the distribution cabinet housing 1, the wires at the lower end of the control device 25 can be passed into the wire sleeve 26, thereby separating the wires and preventing excessive heat between the wires due to overly tight contact. When it is necessary to disassemble the mounting panel 24, turn the fixing nut 23 to move it away from the partition plate 21 until the fixing nut 23 is removed. Then, pull the mounting panel 24 upwards until it is removed. When manual maintenance is required, step down on the foot pedal 16 to move it closer to the ground until the grounding rod 17 installed on the foot pedal 16 is aligned with the grounding rod 17. When the grounding rod 17 contacts the ground, the moving plate 14 begins to move downwards, and the pushing spring 13 begins to stretch and deform. When the grounding rod 17 contacts the ground, the static electricity on the distribution cabinet shell 1 and the connecting cabinet door 4 can be conducted to the ground through the connecting wire 18 and the conductive plate 19. This effectively prevents static electricity from shocking workers when the connecting cabinet door 4 is manually opened for maintenance, thus achieving the effect of automatically conducting static electricity on the distribution cabinet to the ground. After opening the connecting cabinet door 4, the foot pedal 16 is released, and the pushing spring 13 recovers its deformation, causing the moving plate 14 to move upwards until the grounding rod 17 is no longer in contact with the ground. This avoids corrosion caused by the grounding rod 17 being in contact with the ground for a long time, thus effectively extending the service life of the device.

[0049] 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 alterations 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. A power distribution cabinet with automatic electrostatic discharge, comprising a power distribution cabinet shell (1), with support bases (2) installed on the left and right ends of its lower surface, and mounting screws (3) passing through the support bases (2), and a connecting cabinet door (4) installed on the power distribution cabinet shell (1) via hinges, and a waterproof plate (5) provided on the upper end of the power distribution cabinet shell (1); characterized in that Also includes: Solar photovoltaic panels (6) are symmetrically arranged at the left and right ends of the waterproof plate (5), and the solar photovoltaic panels (6) are connected to the power supply (7) through wires; The ion fan (8) is connected to the power supply (7) via a wire; A connecting plate (9) is symmetrically arranged at the left and right ends of the ion fan (8), and a first connecting screw (10) passes through the connecting plate (9). The first connecting screw (10) is connected to the first fixing plate (11) through a threaded hole on the first fixing plate (11). Meanwhile, the first fixing plate (11) is installed on the outer shell (1) of the power distribution cabinet. Fixed sleeves (12) are symmetrically arranged at the left and right ends of the lower surface of the distribution cabinet housing (1); A push spring (13) is installed in a groove on the fixed sleeve (12), and the push spring (13) is in contact with the moving plate (14), and the moving plate (14) is in contact with the fixed sleeve (12). Limiting sliders (15) are symmetrically arranged at the left and right ends of the moving plate (14), and the limiting sliders (15) are slidably connected to the fixed sleeve (12) through the groove opened on the fixed sleeve (12); The pedal (16) has the movable plate (14) symmetrically arranged on the left and right ends of its upper surface; A grounding rod (17) is connected to the foot pedal (16), and the grounding rod (17) is connected to the conductive plate (19) through a connecting wire (18); The conductive plate (19) is attached to the connecting cabinet door (4), and the connecting cabinet door (4) is made of metal and is attracted to the connecting magnet (20), and the connecting magnet (20) is located at the left and right ends of the conductive plate (19). The partition plate (21) is evenly arranged on the inner surface of the power distribution cabinet shell (1), and the partition plate (21) is penetrated by a second connecting screw (22), and the second connecting screw (22) is connected to the fixing nut (23); The mounting panel (24) has second connecting screws (22) symmetrically arranged on the left and right ends of its lower surface, and the mounting panel (24) is provided with a control device (25); A wire sleeve (26) extends through the partition plate (21) and the outer casing (1) of the distribution cabinet.

2. The electrostatically self-organizing power distribution cabinet according to claim 1, characterized in that: The inner surface of the power distribution cabinet housing (1) is symmetrically provided with a second fixing plate (27), and the second fixing plate (27) is connected to the adjusting screw (28) through a threaded hole at its upper end.

3. The electrostatically self-organizing power distribution cabinet according to claim 2, characterized in that: The adjusting screw rod (28) is rotationally connected to the control board (29) through a bearing mounted on the control board (29). A guiding slider (30) is installed at the lower end of the control board (29), and the guiding slider (30) is slidably connected to the power distribution cabinet housing (1) through a groove formed in the power distribution cabinet housing (1).

4. The electrostatically self-organizing power distribution cabinet according to claim 3, characterized in that: Three groups of limiting rods (31) are equidistantly arranged on the control board (29), and each group of the limiting rods (31) has two in total. The limiting rods (31) are snap-fitted to the placement box (32) through grooves formed in the placement box (32).

5. The electrostatically self-organizing power distribution cabinet according to claim 4, characterized in that: A fixing reed (33) is installed in a groove formed in a plate-like structure provided inside the placement box (32). The fixing reeds (33) are symmetrically arranged at both ends of the engaging plate (34), and the engaging plate (34) is in contact with the plate-like structure provided inside the placement box (32).

6. The electrostatically self-organizing power distribution cabinet according to claim 5, characterized in that: The engaging plates (34) are symmetrically arranged at the lower end of the ventilation plate (35), and the ventilation plate (35) is provided with densely distributed through holes.

7. A distribution cabinet with automatic electrostatic discharge according to claim 1, characterized in that: A fastening screw (36) penetrates through a plate-like structure provided at the upper end of the power distribution cabinet housing (1), and the fastening screw (36) is connected to the dust-proof plate (37) through a threaded hole formed in the dust-proof plate (37).

8. A distribution cabinet with automatic electrostatic discharge according to claim 7, characterized in that: Densely distributed through holes are formed at the middle position of the dust-proof plate (37). The lower end of the dust-proof plate (37) is in contact with the upper surface of the power distribution cabinet housing (1), and a through groove is formed at the middle position of the upper end of the power distribution cabinet housing (1).

9. A distribution cabinet with automatic electrostatic discharge according to claim 8, characterized in that: A sealing plate (38) is installed on the power distribution cabinet housing (1). The sealing plate (38) is arranged in a "return" - shaped plate-like structure, and the sealing plate (38) is in contact with the dust-proof plate (37) through a groove formed at the lower end of the dust-proof plate (37).

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