High-voltage switch cabinet with dehumidification function

Abstract

This invention discloses a high-voltage switchgear with dehumidification function, specifically relating to the field of high-voltage switchgear technology. It includes a cabinet, with an exhaust grille near the top of the side wall for air outlet and an intake grille hinged to the bottom of the side wall for air intake. A temperature and humidity sensor is installed on the cabinet door to monitor the internal temperature and humidity. The sensor detects the internal temperature and humidity in real time, and, in conjunction with a controller, controls relevant components to perform dehumidification and heat dissipation. During dehumidification, a motor drives four driven wheels via a drive wheel, causing four fan blades to rotate simultaneously, further increasing the air intake and the cross-sectional area of ​​the ejected air. Air filtered through a dust filter is heated and dried by an electric heating element after passing through the air vents, thus dehumidifying and drying the interior of the cabinet.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switchgear, and more specifically to a high-voltage switchgear with dehumidification function. Background Technology

[0002] High and low voltage switchgear is equipment that connects high voltage or low voltage cables. Generally, power supply bureaus and substations use high voltage switchgear, which is then stepped down by transformers to low voltage switchgear, and then to various power distribution boxes. The internal components of high and low voltage switchgear are simply electrical equipment that integrates some protective devices such as switches and circuit breakers.

[0003] Currently, in order to effectively dissipate heat from the internal components of high-voltage switchgear during operation, through holes are usually opened on the bottom and top sides of the switchgear, and cooling fans are used to achieve simple heat dissipation. However, when the environment in which the high-voltage switchgear is located is relatively humid, the air entering the switchgear cannot be dried. Over time, this will cause some corrosion to the internal components of the switchgear. In addition, when the air enters the switchgear, dust tends to accumulate on the filter screen of the through holes, which will eventually affect the air intake of the switchgear and the heat dissipation process of its internal components. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage switchgear with dehumidification function to overcome the above-mentioned shortcomings in the technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage switchgear with dehumidification function, comprising a cabinet, wherein an air outlet grid plate for air outlet is provided on the side wall of the cabinet near its top, and an air inlet grid plate for air inlet is installed on the side wall of the cabinet near its bottom via a hinge, wherein a temperature and humidity sensor for monitoring the temperature and humidity inside the cabinet is installed on the cabinet door, and an adjustment mechanism for adjusting the temperature and humidity inside the cabinet is installed at the bottom of the cabinet interior.

[0006] The adjustment mechanism includes a component box, the top of which has four air outlets for supplying airflow to the cabinet, and a through hole on the side of the component box near the air inlet grille. A partition is horizontally fixed inside the component box, the lowest surface of which is higher than the highest surface of the through hole. A fan blade is provided below the air outlet and above the partition.

[0007] The partition is provided with a power output mechanism for providing power to the fan blades in the middle. An air guide hole is provided inside the partition on one side of the through hole. A dustproof net for isolating dust is installed at the bottom of the air guide hole. An electric heating tube for heating air is provided on the top of the partition above the air guide hole.

[0008] Below the partition is a cleaning mechanism for cleaning the dustproof net, and the power for the cleaning mechanism comes from a power output mechanism.

[0009] Preferably, the air outlet is provided with a closing component for controlling its automatic closing;

[0010] The closing assembly includes an air guide tube, which is fixed inside the air outlet and has a baffle at its top. Multiple limiting plates are fixed in a circular array at the top opening of the air guide tube, and limiting pins pass through the interior of the limiting plates. The top of the limiting pins is connected to the baffle.

[0011] Preferably, the power output mechanism includes a groove located at the top center of the partition. A support cover is fixed to the top of the groove. A drive wheel is located at the center of the interior of the groove. Four driven wheels are meshed with the outer side of the drive wheel. A motor is installed at the top center of the support cover. The output shaft of the motor passes through the interior of the groove and is connected to the drive wheel. A shaft is connected to the middle of the four driven wheels. The top end of the shaft extends to the top of the support cover and is connected to the fan blade. The shaft and the support cover are rotatably connected by a bearing. A controller is installed on the cabinet door to control the operation of the motor and the heating element.

[0012] Preferably, the diameter of the fan blade is smaller than the diameter of the air duct, and the fan blade is located inside the air duct.

[0013] Preferably, the cleaning mechanism includes a speed reducer, which is installed at the bottom of the partition. The motor output shaft passes through the partition and is connected to the input end of the speed reducer. A disc is installed at the output end of the speed reducer.

[0014] The bottom of the partition is fixed with slide rails on both sides near the dustproof net. Sliders are slidably connected on the slide rails. A fixing plate is fixed between the two sliders. A scraper for scraping dust off the dustproof net is fixed on the top of the fixing plate. A limit frame is connected between the slider below one dustproof net and the slider below the other dustproof net. A limit rod is fixed at the bottom of the disc and passes through the limit frame.

[0015] Preferably, a dust collection frame for temporarily holding dust is fixed on both sides of the fixed plate. A guide plate and a baffle are fixed on the inner sides of the dust collection frame, respectively. A dust collection plate is inserted into one side of the bottom of the dust collection frame. One side of the dust collection plate is flush with the bottom side of the guide plate. A connecting plate is fixed on the other side of the dust collection plate outside the dust collection frame. The bottom of the baffle is in contact with the top of the dust collection plate.

[0016] Preferably, the dust collection frame is provided with a reset component for resetting the connecting plate;

[0017] The reset assembly includes a side groove formed on the outer wall of the dust collection frame. A guide rod is fixed to one side of the connecting plate. The end of the guide rod extends into the interior of the side groove, and a limiting plate is fixed to the end of the guide rod. A spring is sleeved on the outside of the guide rod on one side of the limiting plate.

[0018] Preferably, a guide frame is fixed at the bottom of the partition and at both ends of the slide rail. A rectangular hole for the dust collection frame to enter is opened on one side of the guide frame. A magnetic strip is fixed on the side of the connecting plate facing the guide frame. An iron strip is fixed inside the dust collection frame. The height of the iron strip matches the height of the magnetic strip.

[0019] Preferably, a dust collection box is provided at the bottom of the flow guide frame, the flow guide frame is connected to the dust collection box, the dust collection box is slidably connected to the component box via a track, the track is installed at the bottom inside the component box, and a limit strip is fixed at the bottom inside the component box on one side of the dust collection box.

[0020] Preferably, a flexible film is fixed to the outer wall of the flow guide frame on one side of the rectangular hole.

[0021] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0022] 1. The temperature and humidity sensor can detect the temperature and humidity inside the cabinet in real time. In conjunction with the controller, the relevant components are controlled to carry out dehumidification and heat dissipation. During the dehumidification process, the motor will drive the four driven wheels to rotate through the drive wheel, which will cause the four fan blades to rotate simultaneously, further increasing the air intake and cross-sectional area of ​​the air ejected from the cabinet. The air filtered by the dust filter will be heated and dried by the electric heating tube after passing through the air guide hole, thus dehumidifying and drying the inside of the cabinet.

[0023] 2. During dehumidification, the motor drives the disc to rotate via the reducer. In conjunction with the limit rod, the limit frame and slider move back and forth along the slide rail. This causes the scraper to remove dust from the bottom of the dustproof net. With the help of the guide frame, dust collection frame, dust collection plate, iron strip, magnetic strip, and spring, the dust on the dust collection plate is gradually scraped off into the dust collection box for collection. This process can further extend the cleaning cycle of the switch cabinet's "heat dissipation air intake" and at the same time maintain the effect of unobstructed air intake. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a front view of the cabinet of the present invention;

[0027] Figure 3 This is a schematic diagram of the cabinet structure after it is opened.

[0028] Figure 4 This is an external view of the component box of the present invention;

[0029] Figure 5 This is a schematic diagram of the component box baffle after the present invention is opened;

[0030] Figure 6 This is a schematic diagram of the internal structure of the air guide tube of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the electric heating tube of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure at the connection between the driving wheel and the driven wheel of the present invention;

[0033] Figure 9 This is a schematic diagram of the reducer of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the limiting rod driven by the disc of the present invention when it rotates to the end of the slide rail;

[0035] Figure 11 This is a bottom view of the disk of the present invention;

[0036] Figure 12 This is a schematic diagram of the flow guide frame of the present invention;

[0037] Figure 13 This is one of the structural schematic diagrams of the dust collection frame of the present invention;

[0038] Figure 14 This is a second schematic diagram of the dust collection frame of the present invention;

[0039] Figure 15 This is a schematic diagram of the structure of the dust collection frame entering the guide frame according to the present invention;

[0040] Figure 16 This is a schematic diagram of the structure of the dust collection frame of the present invention as it is about to exit the guide frame.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Cabinet; 2. Inlet grille; 3. Outlet grille; 4. Component box; 5. Air outlet; 6. Baffle; 7. Through hole; 8. Dust collection box; 9. Guide frame; 10. Air duct; 11. Limiting plate; 12. Fan blade; 13. Limiting pin; 14. Partition; 15. Support cover; 16. Motor; 17. Air vent; 18. Dustproof net; 19. Heating element; 20. Groove; 21. Drive wheel; 22. Driven wheel; 23. Reducer; 24. 25. Disc; 26. Limiting rod; 27. Limiting frame; 28. Slider; 29. ​​Fixing plate; 30. Dust collection frame; 31. Rectangular hole; 32. Flexible film; 33. Guide plate; 34. Dust collection plate; 35. Stop block; 36. Connecting plate; 37. Magnetic strip; 38. Side groove; 39. Guide rod; 40. Limiting disc; 41. Spring; 42. Iron strip; 43. Scraper; 44. Slide rail; 45. Temperature and humidity sensor; 46. Controller; 47. Limiting strip. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Example 1

[0045] This invention provides, for example Figure 1-16 The high-voltage switchgear with dehumidification function shown includes a cabinet 1. An air outlet grid plate 3 for air outlet is provided on the side wall of the cabinet 1 near its top. An air inlet grid plate 2 for air inlet is installed on the side wall of the cabinet 1 near its bottom via a hinge. A temperature and humidity sensor 44 for monitoring the internal temperature and humidity of the cabinet 1 is installed on the cabinet door. An adjustment mechanism for adjusting the internal temperature and humidity of the cabinet 1 is installed at the bottom of the cabinet.

[0046] The adjustment mechanism includes a component box 4. The top of the component box 4 has four air outlets 5 for supplying airflow to the cabinet 1. The side of the component box 4 has through holes 7 near the air inlet grille 2. A partition 14 is horizontally fixed inside the component box 4. The lowest surface of the partition 14 is higher than the highest surface of the through hole 7. A fan blade 12 is provided below the air outlets 5 and above the partition 14.

[0047] A power output mechanism for providing power to the fan blades 12 is provided in the middle of the partition 14. An air guide hole 17 is provided inside the partition 14 on one side of the through hole 7. A dustproof net 18 for isolating dust is installed at the bottom of the air guide hole 17. An electric heating tube 19 for heating air is provided on the top of the partition 14 above the air guide hole 17.

[0048] Below the partition 14 is a cleaning mechanism for the dustproof net 18, which is powered by a power output mechanism.

[0049] In one possible implementation, the air outlet 5 is internally provided with a closing component for controlling its automatic closure;

[0050] The closing assembly includes an air duct 10, which is fixed inside the air outlet 5. A baffle 6 is provided at the top of the air duct 10. Multiple limiting plates 11 are fixed in a circular array at the top opening of the air duct 10. Limiting pins 13 pass through the interior of each limiting plate 11, and the top of each limiting pin 13 connects to the baffle 6. The baffle 6 is made of a thin, lightweight material, similar to existing plastic products, so that it can be easily lifted upwards after the fan blades 12 rotate, thus not affecting the normal entry of air into the cabinet 1. When the fan blades 12 rotate... 2. When not rotating, the baffle 6 will block the top of the air duct 10 due to gravity, thereby sealing the air outlet 5 and preventing "moisture" from the ground of the cabinet 1 from entering the cabinet 1. To some extent, this can reduce the corrosion of the internal components of the cabinet 1 by humid air. The shape of the limiting pin 13 is similar to that of the existing bolt. The pin part is the same as the bolt body, and the pin tail part is the same as the bolt tail. The diameter of the pin tail is larger than the diameter of the pin body. The pin tail mainly prevents the baffle 6 from separating from the limiting plate 11.

[0051] In one possible implementation, the power output mechanism includes a groove 20 located at the top center of the partition 14. A support cover 15 is fixed to the top of the groove 20. A drive wheel 21 is located at the center of the interior of the groove 20. Four driven wheels 22 are meshed with the outer side of the drive wheel 21. A motor 16 is installed at the top center of the support cover 15. The output shaft of the motor 16 passes through the interior of the groove 20 and is connected to the drive wheel 21. A shaft is connected at the center of the four driven wheels 22. The top of the shaft extends to the top of the support cover 15 and is connected to the fan blade 12. The shaft and the support cover 15 are rotatably connected by bearings. A controller 45 is installed on the cabinet door of the cabinet 1. The controller 45 is used to control the operation of the motor 16 and the heating element 19.

[0052] In one possible implementation, the diameter of the fan blade 12 is smaller than the diameter of the air duct 10, and the fan blade 12 is located inside the air duct 10.

[0053] Through the above technical solution:

[0054] When in use, when the temperature and humidity sensor 44 detects that the humidity inside the cabinet 1 is high, the controller 45 will cause the motor 16 and the heating element 19 to work.

[0055] During the operation of motor 16, the transmission shaft of motor 16 drives the drive wheel 21 to rotate, which in turn drives the four driven wheels 22 to rotate, so that the four fan blades 12 rotate simultaneously. During the rotation of fan blades 12, air is ejected from the air intake grille 2, through hole 7, air guide hole 17 and air outlet 5 in sequence. Since there are four fan blades 12, the air intake volume inside the cabinet 1 and the cross-sectional area of ​​the air ejected can be further increased.

[0056] When the air passes through the dust filter 18, the dust and other debris in the air will be trapped at the bottom of the dust filter 18. After the filtered air passes through the air duct 17, it will be heated and dried by the electric heating tube 19. Then it will enter the cabinet 1 through the air outlet 5 to dehumidify and dry the inside of the cabinet 1. After that, the air will be discharged through the air outlet grille 3.

[0057] When the temperature and humidity sensor 44 detects that the temperature inside the cabinet 1 is high, it will only turn on the motor 16 and not the heating element 19. The rest of the principle is the same as described above.

[0058] Example 2

[0059] Reference Figures 6-16 The cleaning mechanism includes a reducer 23, which is installed at the bottom of the partition 14. The output shaft of the motor 16 passes through the partition 14 and is connected to the input end of the reducer 23. A disc 24 is installed at the output end of the reducer 23.

[0060] Slide rails 43 are fixed to both sides of the bottom of the partition 14 near the dustproof net 18. Slider 27 is slidably connected to the slide rails 43. A fixing plate 28 is fixed between the two sliders 27. A scraper 42 for scraping dust off the dustproof net 18 is fixed to the top of the fixing plate 28. A limit frame 26 is connected between the slider 27 below one dustproof net 18 and the slider 27 below the other dustproof net 18. A limit rod 25 is fixed to the bottom of the disc 24. The limit rod 25 passes through the limit frame 26. (Since the output shaft of the motor 16 is rigidly connected to the reducer 23 and the fan blade 12, the installation and operation of the reducer 23 will not affect the output of the motor 16.) Factors such as additional resistance torque or vibration affecting the normal rotation of the motor shaft do not significantly affect the rotation speed of the fan blade 12, which remains at the rated speed of the motor 16. However, in practice, the reducer 23 generates a certain load torque during operation. If the power of the motor 16 is limited, the operation of the reducer 23 may increase the overall load on the output shaft of the motor 16, potentially causing a slight decrease in the actual speed of the motor 16. Since the speed of the motor 16 decreases with the increase in load, the speed of the fan blade 12 will also decrease slightly in this case, but it will not affect the rotation process of the fan blade 12.

[0061] In one possible implementation, a dust collection frame 29 for temporarily holding dust is fixed on both sides of the fixed plate 28. A guide plate 32 and a baffle 34 are fixed on the inner sides of the dust collection frame 29, respectively. A dust collection plate 33 is inserted into the bottom side of the dust collection frame 29. One side of the dust collection plate 33 is flush with the bottom side of the guide plate 32. A connecting plate 35 is fixed on the other side of the dust collection plate 33 outside the dust collection frame 29. The bottom of the baffle 34 is in contact with the top of the dust collection plate 33.

[0062] In one possible implementation, the interior of the dust collection frame 29 is provided with a reset assembly for resetting the connecting plate 35;

[0063] The reset assembly includes a side groove 37 formed on the outer wall of the dust collection frame 29, a guide rod 38 fixed on one side of the connecting plate 35, the end of the guide rod 38 penetrating into the interior of the side groove 37, and a limiting plate 39 fixed to the end of the guide rod 38, and a spring 40 sleeved on the outside of the guide rod 38 on one side of the limiting plate 39.

[0064] In one possible implementation, a guide frame 9 is fixed at the bottom of the partition 14 and at both ends of the slide rail 43. A rectangular hole 30 is provided on one side of the guide frame 9 for the dust collection frame 29 to enter. A magnetic strip 36 is fixed on the side of the connecting plate 35 facing the guide frame 9. An iron strip 41 is fixed inside the dust collection frame 29, and the height of the iron strip 41 matches the height of the magnetic strip 36.

[0065] In one possible implementation, a dust collection box 8 is provided at the bottom of the flow guide frame 9. The flow guide frame 9 is connected to the dust collection box 8. The dust collection box 8 is slidably connected to the component box 4 via a track. The track is installed inside the bottom of the component box 4, and a limit strip 46 is fixed on one side of the dust collection box 8 at the inside bottom of the component box 4. The position of the dust collection box 8 can be positioned by the limit strip 46.

[0066] In one possible implementation, a flexible film 31 is fixed to the outer wall of the guide frame 9 on one side of the rectangular hole 30. The flexible film 31 can partially block the rectangular hole 30, preventing dust inside the dust collection box 8 from being attracted back to the dustproof net 18.

[0067] Through the above technical solution:

[0068] When in use, the end of the output shaft of the motor 16 will drive the disc 24 to rotate through the reducer 23. Since the limiting rod 25 at the bottom of the disc 24 passes through the limiting frame 26 and the two ends of the limiting frame 26 are connected to the slider 27, as the disc 24 rotates, it will drive the limiting frame 26 and the slider 27 to move back and forth along the slide rail 43.

[0069] During the reciprocating motion of slider 27, the scraper 42 at the top of slider 27 scrapes away the dust at the bottom of dustproof mesh 18. Some dust falls into the interior of dust collection frame 29. Under the action of guide plate 32, the dust mainly concentrates on dust collection plate 33. When slider 27 gradually moves to the edge of slide rail 43, during this process, slider 27 will drive dust collection frame 29 through rectangular hole 30 into the interior of guide frame 9. Then, under the action of iron strip 41 and magnetic strip 36, it will "tighten" connecting plate 35 (refer to the instruction manual). Figure 15 (Position of the central dust collection plate 33).

[0070] As the slider 27 gradually moves away from the slide rail 43, the dust collection frame 29 gradually moves out of the rectangular hole 30. Since the connecting plate 35 is still in a "suction-tight" state, the dust collection plate 33 remains in the guide frame 9. As the dust collection frame 29 moves further out, the spring 40 in the side groove 37 is further compressed. During this process, the stop block 34 gradually scrapes the dust on the dust collection plate 33 into the guide frame 9 (refer to the instruction manual). Figure 15 (Position of the central dust collection plate 33).

[0071] When all the dust on the dust collection plate 33 is scraped off by the baffle 34 into the guide frame 9, the spring 40 also becomes uncompressible. At this time, as the dust collection frame 29 continues to move, the connecting plate 35 and the magnetic strip 36 will be "pulled out" directly from the guide frame 9 for subsequent dust collection operations. This process can further extend the cleaning cycle of the switch cabinet's "heat dissipation air inlet" and at the same time maintain the effect of keeping the "heat dissipation air inlet" unobstructed.

[0072] Since dust collection frames 29 are provided on both sides of the scraper 42, the dust on the dustproof net 18 can be scraped off in time and then collected as the scraper 42 moves back and forth along the slide rail 43.

[0073] Dust falling from the air intake frame 9 will enter the dust collection box 8. After a period of time, the staff can open the air intake grille 2 to pull out the dust collection box 8 for cleaning.

[0074] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-voltage switchgear with dehumidification function, comprising a cabinet (1), wherein the front and rear surfaces of the cabinet (1) near the top are provided with venting grids (3) for venting air, characterized in that: The front and rear surfaces of the cabinet (1) near its bottom are fitted with air intake grilles (2) for air intake via hinges. A temperature and humidity sensor (44) for monitoring the internal temperature and humidity of the cabinet (1) is installed on the cabinet door. An adjustment mechanism for adjusting the internal temperature and humidity of the cabinet (1) is installed at the bottom of the cabinet (1). The adjustment mechanism includes a component box (4), the top of which has four air outlets (5) for supplying airflow to the cabinet (1), and the side of the component box (4) near the air inlet grille (2) has through holes (7). The interior of the component box (4) is horizontally fixed with a partition (14), the lowest surface of which is higher than the highest surface of the through holes (7). A fan blade (12) is provided below the air outlets (5) and above the partition (14). The partition (14) is provided with a power output mechanism for providing power to the fan blade (12) in the middle. The partition (14) is provided with an air guide hole (17) on one side of the through hole (7). The bottom of the air guide hole (17) is provided with a dustproof net (18) for isolating dust. The top of the partition (14) is provided with an electric heating tube (19) for heating air above the air guide hole (17). A cleaning mechanism for cleaning the dustproof net (18) is provided below the partition (14), and the power of the cleaning mechanism comes from the power output mechanism; The power output mechanism includes a groove (20), which is located at the top center of the partition (14). A support cover (15) is fixed to the top of the groove (20). A drive wheel (21) is provided in the middle of the interior of the groove (20). Four driven wheels (22) are meshed with the outer side of the drive wheel (21). A motor (16) is installed at the top center of the support cover (15). The output shaft of the motor (16) passes through the interior of the groove (20) and is connected to the drive wheel (21). A shaft is connected in the middle of the four driven wheels (22). The top of the shaft extends to the top of the support cover (15) and is connected to the fan blade (12). The shaft and the support cover (15) are rotatably connected by a bearing. A controller (45) is installed on the cabinet door of the cabinet (1). The controller (45) is used to control the working process of the motor (16) and the heating tube (19). The cleaning mechanism includes a speed reducer (23), which is installed at the bottom of the partition (14). The output shaft of the motor (16) passes through the partition (14) and is connected to the input end of the speed reducer (23). A disc (24) is installed at the output end of the speed reducer (23). The bottom of the partition (14) is fixed with slide rails (43) on both sides near the dustproof net (18). Slider (27) is slidably connected on the slide rails (43). A fixing plate (28) is fixed between the two sliders (27). A scraper (42) for scraping dust off the dustproof net (18) is fixed on the top of the fixing plate (28). A limit frame (26) is connected between the slider (27) below one dustproof net (18) and the slider (27) below the other dustproof net (18). A limit rod (25) is fixed at the bottom of the disc (24). The limit rod (25) passes through the limit frame (26). Both sides of the fixed plate (28) are fixed with temporary dust collection frames (29). Inside the dust collection frame (29), a guide plate (32) and a baffle (34) are fixed respectively. A dust collection plate (33) is inserted into one side of the bottom of the dust collection frame (29). One side of the dust collection plate (33) is flush with the bottom side of the guide plate (32). The other side of the dust collection plate (33) is fixed with a connecting plate (35) outside the dust collection frame (29). The bottom of the baffle (34) is in contact with the top of the dust collection plate (33).

2. A high-voltage switchgear with dehumidification function according to claim 1, characterized in that: The air outlet (5) is provided with a closing component for controlling its automatic closing. The closing assembly includes an air guide tube (10), which is fixed inside the air outlet (5). A baffle (6) is provided on the top of the air guide tube (10). Multiple limiting plates (11) are fixed in a circular array at the top opening of the air guide tube (10). A limiting pin (13) passes through the inside of the limiting plate (11), and the top of the limiting pin (13) is connected to the baffle (6).

3. A high-voltage switchgear with dehumidification function according to claim 2, characterized in that: The diameter of the fan blade (12) is smaller than the diameter of the air duct (10), and the fan blade (12) is located inside the air duct (10).

4. A high-voltage switchgear with dehumidification function according to claim 1, characterized in that: The dust collection frame (29) is provided with a reset component for resetting the connecting plate (35); The reset assembly includes a side groove (37) formed on the outer wall of the dust collection frame (29), a guide rod (38) is fixed on one side of the connecting plate (35), the end of the guide rod (38) extends into the interior of the side groove (37), and a limiting plate (39) is fixed to the end of the guide rod (38), and a spring (40) is sleeved on the outside of the guide rod (38) on one side of the limiting plate (39).

5. A high-voltage switchgear with dehumidification function according to claim 4, characterized in that: At the bottom of the partition (14) and at both ends of the slide rail (43), a guide frame (9) is fixed. A rectangular hole (30) for the dust collection frame (29) to enter is provided on one side of the guide frame (9). A magnetic strip (36) is fixed on the side of the connecting plate (35) facing the guide frame (9). An iron strip (41) is fixed inside the dust collection frame (29). The height of the iron strip (41) matches the height of the magnetic strip (36).

6. A high-voltage switchgear with dehumidification function according to claim 5, characterized in that: The bottom of the guide frame (9) is provided with a dust collection box (8). The guide frame (9) is connected to the dust collection box (8). The dust collection box (8) is slidably connected to the component box (4) via a track. The track is installed at the bottom inside the component box (4), and a limit strip (46) is fixed on one side of the dust collection box (8) at the bottom inside the component box (4).

7. A high-voltage switchgear with dehumidification function according to claim 5, characterized in that: The outer wall of the guide frame (9) is fixed with a flexible film (31) on one side of the rectangular hole (30).

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