High-voltage electrical cabinet with dehumidification structure

Abstract

The utility model discloses a high-voltage electrical cabinet with a dehumidification structure, which belongs to the technical field of electrical cabinets and comprises a cabinet body, the top end of the cabinet body is provided with an air supply assembly, the other end of the air supply assembly is provided with a dehumidification box, the dehumidification box is fixedly mounted on the outer side wall of the cabinet body, the bottom end of the dehumidification box is provided with a through hole, and the through hole is communicated with the dehumidification box. A moisture absorption cotton block is arranged in an inner cavity of the dehumidification box, heat dissipation openings are formed in the two sides of the cabinet body, heat dissipation nets are arranged in inner cavities of the heat dissipation openings, a dehumidifier is installed at the bottom end of the inner cavity of the cabinet body, and a water drainage pipe of the dehumidifier penetrates through the cabinet body and extends downwards. The moisture in the air sucked by the air supply assembly is primarily dehumidified through the dehumidification cotton block, and the air in the high-voltage electrical cabinet is dehumidified through the cooperation of the internal dehumidifier, so that the corrosion of the moisture in the air to electronic parts in the high-voltage electrical cabinet is reduced, the short circuit of the high-voltage electrical cabinet is avoided, and the service life of the high-voltage electrical cabinet is prolonged. And the working stability of the high-voltage electrical cabinet is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, specifically a high-voltage electrical cabinet with a dehumidification structure. Background Technology

[0002] High-voltage electrical cabinets refer to electrical products used in power systems for power generation, transmission, distribution, power conversion and consumption, which play the roles of switching, control or protection, with voltage levels ranging from 3.6kV to 550kV. They mainly include several categories such as high-voltage circuit breakers, high-voltage disconnecting switches and grounding switches, high-voltage load switches, high-voltage automatic reclosers and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof power distribution devices and high-voltage switchgear.

[0003] Existing high-voltage electrical cabinets typically rely on heat dissipation structures for cooling during use. However, due to weather conditions, when there is a high level of moisture in the air, these structures can easily draw in outside air and then send it into the high-voltage electrical cabinet. The moisture in the air can corrode the electronic components inside the cabinet, and in severe cases, it can cause a short circuit, leading to the cabinet stopping operation and reducing its stability during operation.

[0004] According to announcement number CN211377251U, a high-voltage electrical cabinet for heat dissipation includes a motor, a cabinet body, and a base plate. Support legs are fixedly connected to the lower side of the base plate, and the cabinet body is fixedly connected to the upper part of the base plate. An air outlet is provided at the lower end of the cabinet body. The cabinet body contains several heat-absorbing plates, a heat exchanger, an oil pipeline assembly, and an oil tank. The oil pipeline assembly disperses heat from inside the electrical cabinet more quickly, and then the heat exchanger absorbs the heat, achieving a conversion process of internal heat transfer to the outside. The motor and fan blades allow for mechanical cooling, driving internal airflow and carrying away some of the heat. This utility model has a simple structure, effectively exchanging and transporting heat inside the electrical cabinet, and increasing airflow. These two methods of heat dissipation ensure the normal operation of internal electrical components and prevent electrical faults caused by excessive heat. It has practical value in the field of electrical cabinet technology.

[0005] As described above, when there is a high humidity level in the air, the heat dissipation structure can easily draw in external air and then send it into the high-voltage electrical cabinet. The humidity in the air can corrode the electronic components inside the high-voltage electrical cabinet, and in severe cases, it can cause a short circuit, causing the high-voltage electrical cabinet to stop working and reducing its stability during operation. Therefore, we need to propose a high-voltage electrical cabinet with a dehumidification structure. Utility Model Content

[0006] The purpose of this invention is to provide a high-voltage electrical cabinet with a dehumidification structure. By setting dehumidifying cotton blocks, the moisture in the air drawn in by the air supply component can be initially dehumidified. At the same time, the internal dehumidifier can work together to dehumidify the air inside the high-voltage electrical cabinet. The moisture in the air is discharged to the outside of the cabinet through the drain pipe, thereby reducing the corrosion of electronic components inside the high-voltage electrical cabinet by moisture in the air, preventing short circuits in the high-voltage electrical cabinet, and improving the stability of the high-voltage electrical cabinet during operation, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage electrical cabinet with a dehumidification structure, comprising a cabinet body, an air supply component for supplying air into the cabinet body at the top, a dehumidification box at the other end of the air supply component, the dehumidification box being fixedly installed on the outer wall of the cabinet body, a through hole at the bottom of the dehumidification box, a moisture-absorbing cotton block inside the dehumidification box, heat dissipation vents on both sides of the cabinet body, heat dissipation mesh inside the heat dissipation vents, a dehumidifier installed at the bottom of the cabinet body, and a drain pipe of the dehumidifier penetrating the cabinet body and extending downwards.

[0008] Preferably, the air supply assembly includes an exhaust fan, which is fixedly installed on the top of the cabinet. The air inlet of the exhaust fan is connected to an air inlet pipe, and the other end of the air inlet pipe is connected to the inner cavity of the dehumidification box. The air outlet of the exhaust fan is connected to an air supply pipe, and the other end of the air supply pipe passes through the cabinet and is bolted with a filter cover.

[0009] Preferably, the dehumidifier box has a door hinged to its surface, and the surface of the door has a groove, with a transparent glass plate installed inside the groove.

[0010] Preferably, a sealing gasket is adhered to the inner wall of the door, and the surface of the sealing gasket is in contact with the inner wall of the dehumidification box.

[0011] Preferably, a support frame is fixedly connected to the end of the dehumidifier box away from the cabinet, a support rod is inserted and slidably connected to the inner cavity of the support frame, one end of the support rod passes through the dehumidifier box and is fixedly connected to a pressing plate, and the other end of the support rod is fixedly connected to a push plate.

[0012] Preferably, the surface of the dehumidification box is provided with a sliding sleeve, and a sliding rod is inserted and slidably connected to the inner cavity of the sliding sleeve. One end of the sliding rod is fixedly connected to the extrusion plate, and the other end of the sliding rod passes through the support frame and is fixedly connected to a limit block.

[0013] Preferably, a fixing block is provided on the support rod, the fixing block is disposed between the dehumidification box and the support frame, and a spring is also sleeved on the outer surface of the support rod, the spring being disposed between the dehumidification box and the fixing block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a high-voltage electrical cabinet with a dehumidification structure. By setting up dehumidifying cotton blocks, the moisture in the air drawn in by the air supply component can be initially dehumidified. At the same time, the internal dehumidifier can work together to dehumidify the air inside the high-voltage electrical cabinet. The moisture in the air is discharged to the outside of the cabinet through the drain pipe, thereby reducing the corrosion of electronic components inside the high-voltage electrical cabinet by moisture in the air, preventing short circuits in the high-voltage electrical cabinet, and improving the stability of the high-voltage electrical cabinet during operation.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the cabinet door of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the box door of this utility model;

[0021] Figure 5 This is a schematic diagram of the support frame of this utility model.

[0022] In the diagram: 1. Cabinet; 2. Air supply assembly; 21. Exhaust fan; 22. Air inlet duct; 23. Air supply duct; 24. Filter cover; 3. Dehumidification box; 4. Moisture-absorbing cotton pad; 5. Heat dissipation vent; 6. Dehumidifier; 7. Box door; 8. Sealing gasket; 9. Support frame; 10. Support rod; 11. Extrusion plate; 12. Push plate; 13. Sliding sleeve; 14. Sliding rod; 15. Fixing block; 16. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This utility model provides a technical solution: a high-voltage electrical cabinet with a dehumidification structure, including a cabinet body 1, an air supply component 2 for supplying air into the electrical cabinet is provided at the top of the cabinet body 1, a dehumidification box 3 is provided at the other end of the air supply component 2, the dehumidification box 3 is fixedly installed on the outer side wall of the cabinet body 1, a through hole is opened at the bottom of the dehumidification box 3, a moisture-absorbing cotton block 4 is provided in the inner cavity of the dehumidification box 3, heat dissipation vents 5 are opened on both sides of the cabinet body 1, a heat dissipation mesh is provided in the inner cavity of the heat dissipation vents 5, a dehumidifier 6 is installed at the bottom of the inner cavity of the cabinet body 1, and the drain pipe of the dehumidifier 6 passes through the cabinet body 1 and extends downward.

[0025] During operation, the air supply component 2 is activated to draw negative pressure into the dehumidification box 3, causing air to be drawn through the through-hole at the bottom of the dehumidification box 3. When the air passes through the moisture-absorbing cotton block 4, the moisture-absorbing cotton block 4 initially absorbs the moisture contained in the air. Then the air is sent into the interior of the cabinet 1, and the dehumidifier 6 is activated to dehumidify the air inside the cabinet 1 again. This reduces the corrosion of electronic components inside the high-voltage electrical cabinet by moisture in the air, avoids short circuits in the high-voltage electrical cabinet, and improves the stability of the high-voltage electrical cabinet during operation.

[0026] The air supply assembly 2 includes an exhaust fan 21, which is fixedly installed on the top of the cabinet 1. The air inlet of the exhaust fan 21 is connected to an air inlet pipe 22, and the other end of the air inlet pipe 22 is connected to the inner cavity of the dehumidification box 3. The air outlet of the exhaust fan 21 is connected to an air supply pipe 23, and the other end of the air supply pipe 23 passes through the cabinet 1 and is connected to a filter cover 24. When the exhaust fan 21 is started, it draws negative pressure from the dehumidification box 3 through the air inlet pipe 22 and sends air into the cabinet 1 through the air supply pipe 23. The filter cover 24 can filter the dust in the air.

[0027] The dehumidifier box 3 is hinged to a door 7. The door 7 has a slot on its surface. A transparent glass plate is installed inside the slot of the door 7. The transparent glass plate allows observation of the moisture-absorbing cotton block 4 and facilitates its replacement and cleaning.

[0028] A sealing gasket 8 is adhered to the inner wall of the door 7. The surface of the sealing gasket 8 is in contact with the inner wall of the dehumidification box 3. The sealing gasket 8 increases the sealing between the door 7 and the dehumidification box 3, thus improving the sealing effect.

[0029] A support frame 9 is fixedly connected to the end of the dehumidifier box 3 away from the cabinet 1. A support rod 10 is inserted and slidably connected to the inner cavity of the support frame 9. One end of the support rod 10 passes through the dehumidifier box 3 and is fixedly connected to a squeezing plate 11. The other end of the support rod 10 is fixedly connected to a push plate 12. Pushing the push plate 12 causes the support rod 10 to push the squeezing plate 11 to squeeze the moisture-absorbing cotton block 4. The moisture in the moisture-absorbing cotton block 4 is squeezed out and the water flows out through the through hole of the dehumidifier box 3, so that the moisture-absorbing cotton block 4 can be reused.

[0030] The surface of the dehumidification box 3 is provided with a sliding sleeve 13, and a sliding rod 14 is inserted and slidably connected to the inner cavity of the sliding sleeve 13. One end of the sliding rod 14 is fixedly connected to the extrusion plate 11, and the other end of the sliding rod 14 passes through the support frame 9 and is fixedly connected to a limit block. The sliding sleeve 13 and the sliding rod 14 cooperate to limit the extrusion plate 11 around its perimeter, thereby improving the stability of the extrusion plate 11 when it moves.

[0031] A fixing block 15 is provided on the support rod 10. The fixing block 15 is located between the dehumidification box 3 and the support frame 9. A spring 16 is also sleeved on the outer surface of the support rod 10. The spring 16 is located between the dehumidification box 3 and the fixing block 15. The push plate 12 drives the fixing block 15 to squeeze the spring 16 through the support rod 10. When the squeezing ends, the spring 16 rebounds and provides a pushing force to push the fixing block 15 back to its original position, so that the push plate 12 is reset.

[0032] In practical use: When working, start the exhaust fan 21 to draw negative pressure into the dehumidification box 3 through the air inlet pipe 22. The air is drawn in through the through hole at the bottom of the dehumidification box 3. When the air passes through the moisture-absorbing cotton block 4, the moisture-absorbing cotton block 4 absorbs the moisture contained in the air. The air supply pipe 23 sends the air into the cabinet 1. Through the filter cover 24, the dust in the air can be filtered. Then start the dehumidifier 6 to dehumidify the air in the cabinet 1 again. The water generated by the dehumidifier 6 is discharged from the inner cavity of the cabinet 1 through the drain pipe.

[0033] During cleaning, the push plate 12 can be pushed so that the support rod 10 pushes the squeezing plate 11 to squeeze the moisture-absorbing cotton block 4. The moisture inside the moisture-absorbing cotton block 4 is squeezed out and the water flows out through the through hole of the dehumidification box 3, thereby reducing the corrosion of electronic components in the high-voltage electrical cabinet by water vapor in the air, avoiding short circuits in the high-voltage electrical cabinet, and improving the stability of the high-voltage electrical cabinet during operation.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage electrical cabinet with dehumidification structure, comprising a cabinet body (1), characterized in that: The top end of the cabinet (1) is provided with a air supply assembly (2) for sending air into the electrical cabinet, the other end of the air supply assembly (2) is provided with a dehumidification box (3), the dehumidification box (3) is fixedly installed on the outer side wall of the cabinet (1), the bottom end of the dehumidification box (3) is provided with a through hole, the inner cavity of the dehumidification box (3) is provided with a moisture absorbing cotton block (4), both sides of the cabinet (1) are provided with a heat dissipation port (5), the inner cavity of the heat dissipation port (5) is provided with a heat dissipation net, the bottom end of the inner cavity of the cabinet (1) is installed with a dehumidifier (6), the drain pipe of the dehumidifier (6) penetrates the cabinet (1) and extends downward.

2. The high-voltage electrical cabinet with a dehumidification structure according to claim 1, characterized in that: The air supply assembly (2) comprises an air extractor (21), the air extractor (21) is fixedly installed on the top end of the cabinet (1), the air inlet of the air extractor (21) is communicated with an air inlet pipe (22), the other end of the air inlet pipe (22) is communicated with the inner cavity of the dehumidification box (3), the air outlet of the air extractor (21) is communicated with an air supply pipe (23), the other end of the air supply pipe (23) penetrates the cabinet (1) and is bolted with a filter cover (24).

3. The high-voltage electrical cabinet with a dehumidification structure according to claim 1, characterized in that: The surface of the dehumidification box (3) is hinged with a box door (7), the surface of the box door (7) is provided with a notch, and the inner cavity of the notch of the box door (7) is installed with a transparent glass plate.

4. The high-voltage electrical cabinet with a dehumidification structure according to claim 3, characterized in that: The inner side wall of the box door (7) is bonded with a sealing gasket (8), and the surface of the sealing gasket (8) is attached to the inner side wall of the dehumidification box (3).

5. The high-voltage electrical cabinet with dehumidification structure according to claim 1, characterized in that: The end of the dehumidification box (3) away from the cabinet (1) is fixedly connected with a support frame (9), the inner cavity of the support frame (9) is inserted and slidably connected with a support rod (10), one end of the support rod (10) penetrates the dehumidification box (3) and is fixedly connected with a pressing plate (11), the other end of the support rod (10) is fixedly connected with a push plate (12).

6. The high-voltage electrical cabinet with dehumidification structure according to claim 5, characterized in that: The surface of the dehumidification box (3) is provided with a sliding sleeve (13), the inner cavity of the sliding sleeve (13) is inserted and slidably connected with a sliding rod (14), one end of the sliding rod (14) is fixedly connected with the pressing plate (11), the other end of the sliding rod (14) penetrates the support frame (9) and is fixedly connected with a limiting block.

7. The high-voltage electrical cabinet with a dehumidification structure according to claim 5, characterized in that: The support rod (10) is provided with a fixed block (15), the fixed block (15) is arranged between the dehumidification box (3) and the support frame (9), and the outer surface of the support rod (10) is further sleeved with a spring (16), the spring (16) is arranged between the dehumidification box (3) and the fixed block (15).

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