A control cabinet equipped with dehumidification function

By combining a dehumidification box, filter screen, activated carbon dehumidification plate, and electric heating tube in the control cabinet, the problem of dust and moisture damaging electrical components caused by direct entry of external air is solved, achieving efficient dehumidification and sealed protection.

CN224439455UActive Publication Date: 2026-06-30湖北京山锦鸿电器设备有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
湖北京山锦鸿电器设备有限公司
Filing Date
2025-06-05
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing dehumidification method of the control cabinet directly heats the outside air, causing dust and moisture to enter and damage the internal electrical components.

Method used

The air is filtered by a filter screen and activated carbon dehumidification plate inside the dehumidification box, and then dried by heating with an electric heating tube. The dehumidification plate in the air outlet dehumidifies again, and the air outlet is sealed by an electric lifting rod to prevent moisture from entering.

Benefits of technology

It effectively filters and dehumidifies, preventing dust and moisture from entering the control cabinet, protecting electrical components, and improving dehumidification and sealing.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224439455U_ABST
    Figure CN224439455U_ABST
Patent Text Reader

Abstract

This utility model discloses a control cabinet equipped with a dehumidification function, relating to the technical field of control cabinets. A dehumidification box is installed on the outside of the main body of the control cabinet. A panel is screwed onto the upper surface of the dehumidification box. Inside the dehumidification box, from left to right, a second dehumidification plate and a filter screen are respectively arranged. A heating frame is also arranged inside the dehumidification box on one side of the second dehumidification plate. Electric heating tubes are symmetrically arranged inside the heating frame. A fan is installed inside the dehumidification box on one side of the heating frame. An air outlet is provided on the upper surface of the main body of the control cabinet, and a first dehumidification plate is arranged inside the air outlet. The filter screen inside the dehumidification box filters the air entering the main body of the control cabinet, while the second dehumidification plate dehumidifies the air. This prevents moisture from the outside air from entering the main body of the control cabinet and reducing the dehumidification effect, thus improving practicality.
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Description

Technical Field

[0001] This utility model relates to the field of control cabinet technology, and in particular to a control cabinet equipped with a dehumidification function. Background Technology

[0002] Control cabinets are devices used for the control and protection of electrical equipment. They are commonly used in industrial automation, construction, power, and other fields. Control cabinets contain multiple electrical components, such as circuit breakers, contactors, relays, frequency converters, PLCs (programmable logic controllers), buttons, indicator lights, switches, etc. In order to ensure that the electrical components inside the control cabinet operate in a safe and stable environment and to prevent moisture from adversely affecting the equipment, it is necessary to dehumidify the control cabinet.

[0003] Chinese patent discloses a control cabinet with dehumidification function (authorization announcement number CN219577696U). This patented technology can perform simple dehumidification of the air entering the control cabinet body through the desiccant inside the dehumidification box; by starting the heating tube and fan, the air can be simply heated by the heating tube and then enter the control cabinet body through the through hole. The hot air can dry the inside of the control cabinet body. At the same time, with the air flow, the inside of the control cabinet body can be effectively dehumidified, which can greatly reduce the damage to the electronic components inside the control cabinet body caused by moisture.

[0004] However, most existing control cabinets dehumidify by heating outside air before introducing it into the cabinet. Since outside air contains dust and moisture, direct entry of this air can damage the electrical components inside the cabinet. For example, the disclosed technology mentioned above uses a method of directly heating outside air. In practical applications, because outside air contains dust and moisture, this dust and moisture will also enter the control cabinet, causing damage to the electrical components. Therefore, those skilled in the art have provided a control cabinet equipped with a dehumidification function to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a control cabinet equipped with dehumidification function, which solves the problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a control cabinet with dehumidification function, comprising: a control cabinet body, a dehumidification box installed on the outside of the control cabinet body, a box plate installed on the upper surface of the dehumidification box by screws, and a second dehumidification plate and a filter screen respectively arranged from left to right inside the dehumidification box, a heating frame also arranged on one side of the second dehumidification plate inside the dehumidification box, electric heating tubes symmetrically arranged inside the heating frame, and a fan installed on one side of the heating frame inside the dehumidification box;

[0007] An air outlet is provided on the upper surface of the main body of the control cabinet. A first dehumidification plate is provided inside the air outlet, and an air outlet plate is installed above the first dehumidification plate inside the air outlet. A fixing plate is also installed on the inner surface of the air outlet. An electric lifting rod is provided on the upper surface of the fixing plate, and a sealing plate is provided below the fixing plate.

[0008] As a further technical solution of this utility model, the upper surface of the air outlet plate is provided with an air outlet, and the lower surface of the sealing plate is provided with a sealing gasket, the lower surface of the sealing gasket being in contact with the upper surface of the air outlet plate.

[0009] As a further technical solution of this utility model, the fixed end of the electric lifting rod is installed on the upper surface of the fixed plate, and the telescopic end of the electric lifting rod is connected to the upper surface of the sealing plate.

[0010] As a further technical solution of this utility model, an air inlet is provided on one side of the dehumidification box, and an air vent that communicates with the main body of the control cabinet is provided on the other side of the dehumidification box.

[0011] As a further technical solution of this utility model, the dehumidification box is also symmetrically arranged with a "U"-shaped frame inside, and the filter screen and the second dehumidification plate are slidably installed inside the frame.

[0012] As a further technical solution of this utility model, both the first dehumidification plate and the second dehumidification plate are made of activated carbon material, and the filter screen is made of stainless steel mesh.

[0013] This utility model provides a control cabinet equipped with dehumidification function, which has the following advantages compared with the prior art:

[0014] 1. This design provides a control cabinet equipped with a dehumidification function. The air entering the control cabinet body can be filtered through the filter screen inside the dehumidification box, and the air can be dehumidified by the second dehumidification plate. This can prevent moisture in the outside air from entering the control cabinet body and reducing the dehumidification effect. The air entering the control cabinet body can be heated by the electric heating tube to achieve the purpose of drying and dehumidification. It has good practicality.

[0015] 2. This design provides a control cabinet with a dehumidification function. The first dehumidification plate inside the air outlet can dehumidify the exhaust air, improving the dehumidification effect. At the same time, the air outlet on the air outlet plate can achieve the purpose of air discharge. The operation of the electric lifting rod will cause the sealing plate to seal the air outlet downward, thus preventing external moisture from entering the control cabinet body from the top and causing damage to its internal electrical components. Attached Figure Description

[0016] Figure 1 A schematic diagram of a control cabinet equipped with dehumidification function;

[0017] Figure 2 A schematic diagram of the structure of the first dehumidification plate in a control cabinet equipped with dehumidification function;

[0018] Figure 3 This is a schematic diagram of the dehumidification box in a control cabinet equipped with a dehumidification function.

[0019] Figure 4 This is a top view of the dehumidification box in a control cabinet equipped with dehumidification function.

[0020] In the diagram: 1. Control cabinet body; 2. Air outlet; 21. First dehumidification plate; 22. Air outlet plate; 221. Air outlet; 23. Fixing plate; 231. Electric lifting rod; 232. Sealing plate; 3. Dehumidification box; 31. Box panel; 32. Air inlet; 33. Filter screen; 34. Second dehumidification plate; 35. Frame; 36. Heating frame; 361. Electric heating element; 37. Vent; 38. Fan. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a control cabinet with dehumidification function: it includes a control cabinet body 1, a dehumidification box 3 installed on the outside of the control cabinet body 1, a box plate 31 installed on the upper surface of the dehumidification box 3 by screws, and a second dehumidification plate 34 and a filter screen 33 respectively arranged from left to right inside the dehumidification box 3. A heating frame 36 is also arranged inside the dehumidification box 3 on one side of the second dehumidification plate 34. Electric heating tubes 361 are symmetrically arranged inside the heating frame 36. A fan 38 is installed inside the dehumidification box 3 on one side of the heating frame 36. This arrangement utilizes the filter screen 33 inside the dehumidification box 3 to filter the air entering from the air inlet 32, and then dehumidify it by passing it through the second dehumidification plate 34. This can prevent dust and moisture in the outside air from entering the control cabinet body 1 and causing damage to its internal electrical components.

[0023] An air outlet 2 is provided on the upper surface of the control cabinet body 1. A first dehumidification plate 21 is provided inside the air outlet 2, and an air outlet plate 22 is installed above the first dehumidification plate 21 inside the air outlet 2. A fixing plate 23 is also installed on the inner surface of the air outlet 2. An electric lifting rod 231 is provided on the upper surface of the fixing plate 23, and a sealing plate 232 is provided below the fixing plate 23. This arrangement allows the air inside the control cabinet body 1 to be discharged through the air outlet 221 on the air outlet plate 22, and the discharged air can be dehumidified by the first dehumidification plate 21, thereby improving its dehumidification effect.

[0024] like Figure 2 As shown, an air outlet 221 is provided on the upper surface of the air outlet plate 22, and a sealing gasket is provided on the lower surface of the sealing plate 232. The lower surface of the sealing gasket is in contact with the upper surface of the air outlet plate 22. The fixed end of the electric lifting rod 231 is installed on the upper surface of the fixed plate 23, and the telescopic end of the electric lifting rod 231 is connected to the upper surface of the sealing plate 232. This configuration allows the electric lifting rod 231 to be turned on by an external power source. When the telescopic rod of the electric lifting rod 231 moves downward, the sealing plate 232 will block the air outlet 221, thus preventing external air from entering the interior of the control cabinet body 1 through the air outlet 221. In addition, the sealing gasket on the lower surface of the sealing plate 232 can improve the sealing performance of the connection.

[0025] like Figure 4 As shown, an air inlet 32 ​​is provided on one side of the dehumidification box 3, and an air vent 37 is provided on the other side of the dehumidification box 3, which is connected to the control cabinet body 1. This arrangement allows external air to be introduced into the dehumidification box 3 for heating and dehumidification when the fan 38 is working, and dry air is introduced into the control cabinet body 1 through the air vent 37 for dehumidification.

[0026] like Figure 3 and Figure 4As shown, the dehumidification box 3 is also symmetrically equipped with a "U"-shaped frame 35. The filter screen 33 and the second dehumidification plate 34 are slidably installed inside the frame 35. The first dehumidification plate 21 and the second dehumidification plate 34 are both made of activated carbon material, and the filter screen 33 is made of stainless steel mesh. This arrangement uses the frame 35 to guide the filter screen 33 and the second dehumidification plate 34 into its interior, which also facilitates their installation and disassembly. In this way, the second dehumidification plate 34 can dehumidify the incoming air, while the filter screen 33 can filter and remove dust from the incoming air.

[0027] The working principle of this utility model is as follows: When the control cabinet equipped with dehumidification function is in use, by turning on the fan 38 inside the dehumidification box 3, external air can enter the dehumidification box 3 through the air inlet 32. After entering, the air will pass through the filter screen 33 to intercept dust in the air, and after dust removal, the air will pass through the second dehumidification plate 34 for dehumidification treatment. This can prevent dust and moisture in the external air from entering the interior of the control cabinet body 1. At the same time, the air after dust removal and dehumidification will be heated and dried by the electric heating tube 361, and finally introduced into the interior of the control cabinet body 1 to achieve dehumidification treatment inside. The dehumidified air will be dehumidified again through the first dehumidification plate 21 to improve its dehumidification effect. Finally, the air will be discharged outward through the air outlet 221 opened on the air outlet plate 22. A humidity sensor can be installed inside the control cabinet body 1 to monitor its internal humidity. After dehumidification, the electric lifting rod 231 can be turned on by an external power source. The extension rod of the electric lifting rod 231 will move downward, causing the sealing plate 232 to move towards the position of the air outlet plate 22 to block the air outlet 221. The sealing gasket can improve the sealing performance, thus preventing external air from entering the interior of the control cabinet body 1 from the air outlet 2, achieving the purpose of efficient dehumidification.

[0028] The control cabinet used in this utility model is an existing product, and its internal structure has been disclosed, so it will not be discussed in detail here. Furthermore, the electrical components used in this utility model (electric lifting rod, fan, electric heating tube, etc.) are all existing known electrical equipment, all connected to an external main controller and external power supply, and all can be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies, and the appropriate model is selected according to actual use. Therefore, the structure, circuit, and control principle of the device will not be elaborated here.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A control cabinet configured with a dehumidification function, characterized by, include: The control cabinet body (1) has a dehumidification box (3) installed on the outside of the control cabinet body (1). The upper surface of the dehumidification box (3) is fitted with a box plate (31) by screws. The inside of the dehumidification box (3) is provided with a second dehumidification plate (34) and a filter screen (33) from left to right. The inside of the dehumidification box (3) is also provided with a heating frame (36) on one side of the second dehumidification plate (34). The heating frame (36) is symmetrically provided with electric heating tubes (361). The inside of the dehumidification box (3) is provided with a fan (38) on one side of the heating frame (36). An air outlet (2) is provided on the upper surface of the control cabinet body (1). A first dehumidification plate (21) is provided inside the air outlet (2), and an air outlet plate (22) is installed above the first dehumidification plate (21) inside the air outlet (2). A fixing plate (23) is also installed on the inner surface of the air outlet (2). An electric lifting rod (231) is provided on the upper surface of the fixing plate (23), and a sealing plate (232) is provided below the fixing plate (23).

2. The control cabinet configured with a dehumidification function according to claim 1, characterized in that, The upper surface of the air outlet plate (22) is provided with an air outlet (221), and the lower surface of the sealing plate (232) is provided with a sealing gasket, the lower surface of the sealing gasket being in contact with the upper surface of the air outlet plate (22).

3. The control cabinet configured with a dehumidification function according to claim 1, characterized in that, The fixed end of the electric lifting rod (231) is installed on the upper surface of the fixed plate (23), and the telescopic end of the electric lifting rod (231) is connected to the upper surface of the sealing plate (232).

4. The control cabinet configured with a dehumidification function according to claim 1, characterized in that, The dehumidification box (3) has an air inlet (32) on one side and an air vent (37) on the other side that communicates with the control cabinet body (1).

5. The control cabinet configured with a dehumidification function according to claim 1, characterized in that, The dehumidification box (3) is also symmetrically equipped with a "U"-shaped frame (35), and the filter screen (33) and the second dehumidification plate (34) are slidably installed inside the frame (35).

6. The control cabinet configured with a dehumidification function according to claim 1, characterized in that, The first dehumidification plate (21) and the second dehumidification plate (34) are both made of activated carbon material, and the filter screen (33) is made of stainless steel mesh.