Anti-interference device applied to power electronic technology

Abstract

The invention discloses an anti-interference device applied to a power electronic technology, and relates to the technical field of power electronics, and the technical scheme is that the anti-interference device comprises a protection box, a dehumidification groove is fixedly connected to the right side of the protection box, a heat dissipation filter plate is arranged at the end, away from the protection box, of the dehumidification groove, and an adjusting mechanism is fixedly connected to the right side of the dehumidification groove; the adjusting mechanism comprises fixing plates fixedly connected to the two sides of the dehumidification groove, transmission grooves are fixedly connected to the lower portions of the fixing plates, and second motors are arranged on the upper portions of the transmission grooves. When the weather is normal, the movable baffles are horizontally arranged on the upper portions of the dehumidification groove and the heat dissipation groove to block falling dust, and when it rains, the movable baffles can be driven to rotate by starting the adjusting mechanism; the opening of the heat dissipation groove and the opening of the dehumidification groove can be shielded by driving the movable baffle to rotate, falling rainwater is difficult to permeate into the protection box through heat dissipation filter plates arranged at the opening of the heat dissipation groove and the opening of the dehumidification groove, and the cleaning mechanism can be started to drive a scraper to remove dust and impurities attached to the surfaces of the heat dissipation filter plates.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and particularly to an anti-interference device applied to power electronics technology. Background Art

[0002] The background art of the anti-interference device applied to power electronics technology stems from the serious electromagnetic interference problems faced by power electronic devices during operation. As a high-power power conversion device, various electromagnetic interference signals inevitably exist at the installation and use sites of power electronic devices. These signals may come from the power frequency power grid, the switching operations of on-site electrical equipment, overvoltage spikes in the power grid, the switching processes of high-power devices in the power electronic device itself, and the mutual interference within the control circuit, etc. These interference signals may cause the power electronic device to malfunction, affecting the stability of the power grid operation and the reliability of power supply. Therefore, to ensure the safe and reliable operation of power electronic devices, effective anti-interference measures need to be taken during design and manufacturing, and anti-interference devices are applied to improve the stability and reliability of the system.

[0003] After retrieval, the invention patent with the Chinese patent number CN116583044A discloses an anti-interference electronic device applied to power electronics technology, including a housing with a hollow interior and an opening constructed at the top. An anti-interference electronic device main body is fixed inside the housing. A heat dissipation channel is embedded in the side wall of the housing. A moving plate is slidably connected inside the heat dissipation channel. A fan is installed on the moving plate. A moisture-proof plate is embedded at the bottom of the moving plate. A top plate is provided at the top of the housing. A solar panel is fixed on the top plate. A collecting member is provided on one side of the solar panel. Two brush plates are provided on the solar panel and are in contact with its top wall. When it rains in this application, the moving plate is slid along the heat dissipation channel, so that the moisture-proof plate embedded on the moving plate moves into the heat dissipation channel. The moisture-proof plate can dehumidify the air passing through the heat dissipation channel, and try to avoid the high humidity inside the housing affecting the operation of the anti-interference electronic device main body. Compared with the prior art, the invention patent with the Chinese patent number CN116583044A can solve the problems that some existing anti-interference electronic devices are installed in mid-air when in use, and the high humidity or temperature near the anti-interference electronic device will affect the normal use of the device main body when encountering rainy or high-temperature weather. After the device is used for a long time, a large amount of foreign matter will fall on the device, and the accumulation of these foreign matters on the device may affect the normal use of the device.

[0004] However, during the use of existing devices, when the anti-interference electronic device installed in the air dissipates heat through the heat dissipation holes, it often carries impurities such as dust in the air and adheres and accumulates at the heat dissipation holes. Long-term accumulation is likely to affect heat dissipation. Moreover, in rainy days, rainwater is also likely to penetrate into the device interior from openings such as the heat dissipation holes, affecting the use of the device. Therefore, an anti-interference device applied to power electronics technology is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages in the prior art that when the anti-interference electronic device installed in the air dissipates heat through the heat dissipation holes, it often carries impurities such as dust in the air and adheres and accumulates at the heat dissipation holes. Long-term accumulation is likely to affect heat dissipation. Moreover, in rainy days, rainwater is also likely to penetrate into the device interior from openings such as the heat dissipation holes, affecting the use of the device, and to propose an anti-interference device applied to power electronics technology.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An anti-interference device applied to power electronics technology includes a protection box. A dehumidification tank is fixedly connected to the right side of the protection box. A heat dissipation filter plate is arranged at one end of the dehumidification tank away from the protection box. An adjustment mechanism is fixedly connected to the right side of the dehumidification tank. The adjustment mechanism includes fixing plates fixedly connected to both sides of the dehumidification tank. A transmission groove is fixedly connected to the lower part of the fixing plate. A second motor is arranged in the upper part of the transmission groove. A second lead screw is arranged at the output end of the second motor. The second lead screw is threadedly connected with a transmission member. A connecting rod is fixedly connected to the upper part of the transmission member. A connecting member is rotatably connected to the upper part of the connecting rod. An adjusting member is rotatably connected to the connecting member. An activity baffle is rotatably connected to the upper part of the adjusting member. When it rains, the second motor is started to drive the connecting rod to move. The movement of the connecting rod drives the adjusting member to rotate, and the rotation of the adjusting member drives the activity baffle to rotate, and the rainwater is blocked by rotating the activity baffle;

[0008] A cleaning mechanism is arranged inside the activity baffle. The cleaning mechanism includes a cleaning housing fixedly connected inside the activity baffle. A first motor is arranged in the upper part of the cleaning housing. A first lead screw is arranged at the output end of the first motor. The first lead screw is threadedly connected with a transmission plate. A scraping plate is fixedly connected to the upper part of the transmission plate. By driving the transmission plate to move through the first motor, the scraping plate fixedly connected to the transmission plate is driven to move, and the dust and impurities on the heat dissipation filter plate are wiped off.

[0009] The above technical solution further includes:

[0010] The connecting rod is rotatably connected between the fixing plates, and the adjusting member is rotatably connected to the upper part of the fixing plate.

[0011] Two limiting sliding rails are fixedly connected to the upper part of the cleaning housing, and a transmission plate is slidably connected to the side of the limiting sliding rail away from the scraping plate.

[0012] A heat dissipation slot is fixedly connected to the left side of the protection box, and a heat dissipation filter plate is fixedly connected to the left end of the heat dissipation slot.

[0013] An adjusting mechanism is arranged above the heat dissipation slot. The adjusting mechanism above the heat dissipation slot has the same structure as the adjusting mechanism arranged above the dehumidification slot. At the same time, a cleaning mechanism is also arranged inside the adjusting mechanism.

[0014] A bottom mounting plate is fixedly connected inside the protection box. An equipment main body is fixedly connected to the upper part of the bottom mounting plate. Heat dissipation holes are opened on the contact surface between the upper part of the bottom mounting plate and the equipment main body, and the bottom of the equipment main body can also dissipate heat during operation.

[0015] A temperature and humidity detector is arranged at the front end of the protection box, and the temperature and humidity detector monitors the temperature and humidity inside the protection box.

[0016] A dehumidifying mechanism is arranged inside the heat dissipation slot. The dehumidifying mechanism includes a heat exchanger fixedly connected inside the dehumidification slot. A blower is fixedly connected to one side of the heat exchanger. A compressor is arranged on the side wall of the heat exchanger. The outside air of the protection box can be sucked in through the blower. The heat exchanger includes an evaporator and a condenser, and the humid air can be condensed into water droplets after passing through the evaporator.

[0017] A liquid discharge slot is arranged near the heat exchanger inside the dehumidification slot, and the liquid discharge slot discharges the water droplets condensed by the heat exchanger.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, when the weather is normal, the movable baffle is horizontally arranged above the dehumidification slot and the heat dissipation slot to block dust from falling. When it rains, by starting the adjusting mechanism, the movable baffle can be driven to rotate. By driving the rotation of the movable baffle, the openings of the heat dissipation slot and the dehumidification slot can be blocked. The rainwater falling is difficult to penetrate into the protection box through the heat dissipation filter plate arranged at the openings of the heat dissipation slot and the dehumidification slot. While the movable baffle blocks the openings of the dehumidification slot and the heat dissipation slot, the scraping plate arranged on the cleaning mechanism inside the movable baffle can contact the surface of the heat dissipation filter plate. By starting the cleaning mechanism, the scraping plate can be driven to move along the surface of the heat dissipation filter plate, so as to remove the dust and impurities attached and accumulated on the surface of the heat dissipation filter plate, and prevent the heat dissipation filter plate from being blocked and affecting heat dissipation.

[0020] 2. In the present invention, most of the air outside the protection box is humid after rain. And a dehumidifying mechanism is arranged inside the dehumidification slot. After the humid air outside the protection box enters the dehumidification slot, the moisture in the air can be evaporated through the dehumidifying mechanism, so as to convey dry air into the protection box, effectively preventing the humid air from entering the protection box and affecting the normal operation of the equipment main body. Brief Description of the Drawings

[0021] Figure 1 FIG. is a schematic structural diagram of an anti-interference device applied to power electronics technology proposed by the present invention;

[0022] Figure 2 FIG. is a schematic diagram of the overall structure of the device in the present invention;

[0023] Figure 3 FIG. is a schematic diagram of the internal structure of the protection box in the present invention;

[0024] Figure 4 FIG. is a schematic diagram of the connection relationship of the cleaning mechanism in the present invention;

[0025] Figure 5 FIG. is a schematic diagram of the structure of the cleaning mechanism in the present invention;

[0026] Figure 6 FIG. is a schematic diagram of the structure of the adjustment mechanism in the present invention;

[0027] Figure 7 FIG. is a schematic diagram of the internal structure of the dehumidification tank in the present invention;

[0028] Figure 8 FIG. is a schematic diagram of the structure of the dehumidification mechanism in the present invention.

[0029] In the figure: 1. Protection box; 2. Temperature and humidity detector; 3. Movable baffle; 4. Dehumidification tank; 5. Heat dissipation slot; 6. Fan; 7. Equipment main body; 8. Bottom mounting plate; 9. Fixed plate; 10. Scraper; 11. Cleaning housing; 12. First lead screw; 13. First motor; 14. Transmission plate; 15. Transmission slot; 16. Second motor; 17. Transmission part; 18. Second lead screw; 19. Connecting rod; 20. Connecting piece; 21. Adjusting piece; 22. Heat dissipation filter plate; 23. Heat exchanger; 24. Compressor; 25. Drainage tank; 26. Limit slide rail. Detailed Description of the Invention

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] As Figures 1 - 8As shown in the figure, an anti-interference device applied to power electronics technology includes a protection box 1. A dehumidification tank 4 is fixedly connected to the right side of the protection box 1. A heat dissipation filter plate 22 is provided at one end of the dehumidification tank 4 away from the protection box 1. An adjusting mechanism is fixedly connected to the right side of the dehumidification tank 4. The adjusting mechanism includes fixing plates 9 fixedly connected to both sides of the dehumidification tank 4. A transmission groove 15 is fixedly connected to the lower part of the fixing plate 9. A second motor 16 is arranged in the upper part of the transmission groove 15. A second lead screw 18 is arranged at the output end of the second motor 16. The second lead screw 18 is threadedly connected to a transmission member 17. A connecting rod 19 is fixedly connected to the upper part of the transmission member 17. A connecting member 20 is rotatably connected to the upper part of the connecting rod 19. The connecting member 20 is rotatably connected to an adjusting member 21. The adjusting member 21 is rotatably connected to a movable baffle 3. When it rains, the second motor 16 is started to drive the connecting rod 19 to move. The movement of the connecting rod 19 drives the adjusting member 21 to rotate, and the rotation of the adjusting member 21 drives the movable baffle 3 to rotate, blocking the rainwater by rotating the movable baffle 3.

[0033] A cleaning mechanism is arranged inside the movable baffle 3. The cleaning mechanism includes a cleaning housing 11 fixedly connected inside the movable baffle 3. A first motor 13 is arranged in the upper part of the cleaning housing 11. A first lead screw 12 is arranged at the output end of the first motor 13. The first lead screw 12 is threadedly connected to a transmission plate 14. A scraping plate 10 is fixedly connected to the upper part of the transmission plate 14. The first motor 13 drives the transmission plate 14 to move, and then drives the scraping plate 10 fixedly connected to the transmission plate 14 to move, wiping off the dust and impurities on the heat dissipation filter plate 22.

[0034] The connecting rod 19 is rotatably connected to the fixing plate 9. The adjusting member 21 is rotatably connected to the upper part of the fixing plate 9. Two limiting slide rails 26 are fixedly connected to the upper part of the cleaning housing 11. The transmission plate 14 is slidably connected to one side of the limiting slide rail 26 away from the scraping plate 10. A heat dissipation groove 5 is fixedly connected to the left side of the protection box 1. A heat dissipation filter plate 22 is fixedly connected to the left end of the heat dissipation groove 5. An adjusting mechanism is arranged in the upper part of the heat dissipation groove 5. The adjusting mechanism in the upper part of the heat dissipation groove 5 has the same structure as the adjusting mechanism arranged in the upper part of the dehumidification tank 4. At the same time, a cleaning mechanism is also arranged inside the adjusting mechanism.

[0035] In this embodiment, when the weather is normal, the movable baffle 3 is horizontally arranged above the dehumidification tank 4 and the heat dissipation tank 5, which can effectively prevent dust from falling. When it rains, the second motor 16 is started to drive the second lead screw 18 to rotate. The rotation of the second lead screw 18 can drive the threaded connection of the transmission member 17 to move, and the movement of the transmission member 17 can drive the fixedly connected connecting rod 19 to move. The movement of the connecting rod 19 can drive the rotatably connected connecting member 20 at the upper part to rotate. The rotation of the connecting member 20 can drive the rotatably connected adjusting member 21 to rotate. By rotating the adjusting member 21, the movable baffle 3 fixedly connected to the upper part can also rotate. By driving the movable baffle 3 to rotate, the openings of the heat dissipation tank 5 and the dehumidification tank 4 can be blocked, and the rainwater falling is difficult to penetrate into the protection box 1 through the heat dissipation filter plate 22 arranged at the openings of the dehumidification tank 4 and the heat dissipation tank 5, effectively protecting the equipment main body 7 inside the protection box 1.

[0036] While the movable baffle 3 blocks the openings of the dehumidification tank 4 and the heat dissipation tank 5, the first motor 13 can be started. Through the first motor 13, the first lead screw 12 can be driven to rotate. The rotation of the first lead screw 12 can drive the threaded connection of the transmission plate 14 to move. During the movement of the transmission plate 14, the limit slide rail 26 slidably connected to the bottom can effectively ensure the stability of the movement of the transmission plate 14. By the movement of the transmission plate 14, the scraper 10 can be driven to slide along the surface of the heat dissipation filter plate 22, so as to remove the dust and impurities attached and accumulated on the surface of the heat dissipation filter plate 22, preventing the heat dissipation filter plate 22 from being blocked and affecting heat dissipation.

[0037] Embodiment Two

[0038] As Figures 1 - 8 shown, a bottom mounting plate 8 is fixedly connected inside the protection box 1. The equipment main body 7 is fixedly connected above the bottom mounting plate 8. A heat dissipation hole is provided at the contact surface between the upper part of the bottom mounting plate 8 and the equipment main body 7. When the equipment main body 7 works, heat can also be dissipated from the bottom. A temperature and humidity detector 2 is arranged at the front end of the protection box 1, and the temperature and humidity detector 2 monitors the temperature and humidity inside the protection box 1.

[0039] A dehumidification mechanism is arranged inside the heat dissipation tank 5. The dehumidification mechanism includes a heat exchanger 23 fixedly connected inside the dehumidification tank 4. A blower 6 is fixedly connected to one side of the heat exchanger 23. A compressor 24 is arranged on the side wall of the heat exchanger 23. The outside air of the protection box 1 can be sucked in through the blower 6. The heat exchanger 23 includes an evaporator and a condenser. Moist air can be condensed into water droplets after passing through the evaporator. A drain tank 25 is arranged at a position near the heat exchanger 23 inside the dehumidification tank 4, and the drain tank 25 discharges the water droplets condensed by the heat exchanger 23.

[0040] In this embodiment, most of the air outside the rain protection box 1 is humid. The humid air entering the interior of the protection box 1 can easily affect the electronic components in the device main body 7. By controlling the blower 6 to turn on, the humid air outside the protection box 1 can be sucked into the dehumidification tank 4. The humid air can evaporate the moisture in the air through the evaporator in the heat exchanger 23, and then the water droplets condensed by the condenser can be discharged from the liquid discharge tank 25 provided in the dehumidification tank 4. The dried air is then sent into the protection box 1 through the blower 6, effectively preventing the humid air from entering the interior of the protection box 1 and affecting the normal operation of the device main body 7.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-interference device applied to power electronics technology, comprising a protection box (1), characterized in that: The right side of the protection box (1) is fixedly connected to a dehumidification tank (4), and a heat dissipation filter plate (22) is arranged at one end of the dehumidification tank (4) away from the protection box (1). The right side of the dehumidification tank (4) is fixedly connected to an adjustment mechanism, and the adjustment mechanism comprises a fixed plate (9) fixedly connected to both sides of the dehumidification tank (4), and a transmission slot (15) is fixedly connected to the lower part of the fixed plate (9), and a second motor (16) is arranged at the upper part of the transmission slot (15), and a second screw rod (18) is arranged at the output end of the second motor (16), and the second screw rod (18) is threadedly connected to a transmission member. (17), the transmission member (17) is fixedly connected to a connecting rod (19) at its upper portion, the connecting rod (19) is rotatably connected to a connecting member (20) at its upper portion, the connecting member (20) is rotatably connected to an adjusting member (21), the adjusting member (21) is rotatably connected to a movable baffle (3), when it rains, the second motor (16) is started to drive the connecting rod (19) to move, the movement of the connecting rod (19) drives the adjusting member (21) to rotate, and the rotation of the adjusting member (21) drives the movable baffle (3) to rotate, thereby blocking rainwater by rotating the movable baffle (3); A cleaning mechanism is arranged inside the movable baffle (3), and the cleaning mechanism comprises a cleaning shell (11) fixedly connected to the inside of the movable baffle (3); a first motor (13) is arranged on the upper part of the cleaning shell (11); a first screw rod (12) is arranged at the output end of the first motor (13); the first screw rod (12) is threadedly connected to a transmission plate (14); a scraper (10) is fixedly connected to the upper part of the transmission plate (14); the transmission plate (14) is driven to move by the first motor (13), thereby driving the scraper (10) fixedly connected to the transmission plate (14) to move, thereby removing dust and impurities on the heat dissipation filter plate (22).

2. The anti-interference device applied to power electronics technology according to claim 1, characterized in that: The connecting rod (19) is rotatably connected to the fixing plate (9), and an adjusting member (21) is rotatably connected to the upper portion of the fixing plate (9).

3. The anti-interference device applied to power electronics technology according to claim 1, characterized in that: Two limiting slide rails (26) are fixedly connected to the upper part of the cleaning shell (11), and a transmission plate (14) is slidably connected to the side of the limiting slide rail (26) away from the scraper (10).

4. The anti-interference device applied to power electronics technology according to claim 1, characterized in that: The left side of the protection box (1) is fixedly connected to a heat dissipation slot (5), and the left end of the heat dissipation slot (5) is fixedly connected to a heat dissipation filter plate (22).

5. The anti-interference device applied to power electronics technology according to claim 4, characterized in that: An adjustment mechanism is provided on the upper part of the heat dissipation groove (5).

6. The anti-interference device applied to power electronics technology according to claim 1, characterized in that: A bottom mounting plate (8) is fixedly connected inside the protection box (1), and a device body (7) is fixedly connected to the top of the bottom mounting plate (8).

7. The anti-interference device applied to power electronics technology according to claim 1, characterized in that: A temperature and humidity detector (2) is provided at the front end of the protection box (1), and the temperature and humidity detector (2) monitors the temperature and humidity inside the protection box (1).

8. The anti-interference device applied to power electronics technology according to claim 5, characterized in that: A dehumidification mechanism is provided inside the heat dissipation tank (5), and the dehumidification mechanism comprises a heat exchanger (23) fixedly connected inside the dehumidification tank (4), a fan (6) is fixedly connected to one side of the heat exchanger (23), and a compressor (24) is provided on the side wall of the heat exchanger (23).

9. The anti-interference device applied to power electronics technology according to claim 8, characterized in that: A drainage groove (25) is provided near the heat exchanger (23) inside the dehumidification groove (4), and the drainage groove (25) discharges water droplets condensed by the heat exchanger (23).

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