Moistureproof low-voltage cabinet
By installing heat dissipation components and filter media in the low-pressure cabinet, and utilizing the cooperation of servo motors and heating tubes, the problem of high humidity inside the low-pressure cabinet is solved, achieving effective moisture prevention and sealing, and avoiding frequent replacement of filter media.
Patent Information
- Application Number
- CN202520310246.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing low-voltage switchgear tends to accumulate water vapor in cool places, resulting in high internal humidity, which affects the normal operation of electrical equipment, and the filter media needs to be replaced frequently.
A moisture-proof low-pressure cabinet was designed. By setting heat dissipation components and filter media on the side of the cabinet, a servo motor drives the fan to reverse, and combined with the heating tube, the incoming air is filtered and heated, avoiding frequent replacement of the filter media. The cabinet door is sealed by fixing components.
Effective moisture protection was achieved, avoiding frequent replacement of filter media and ensuring relative sealing and good heat dissipation inside the low-pressure cabinet.
Smart Images
Figure CN223797753U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of low-pressure cabinet technology, specifically relating to a moisture-proof low-pressure cabinet. Background Technology
[0002] Low-voltage switchgear is a crucial power distribution device in power systems, widely used in power distribution and control systems of industrial, commercial, and civil buildings. It is typically made of steel plates or insulating materials and integrates various electrical components such as circuit breakers, contactors, fuses, and instrument transformers. It is used to safely and efficiently distribute high-voltage electrical energy, after being stepped down by transformers, to various electrical devices. Low-voltage switchgear features a compact design, robust structure, and good protection levels, effectively preventing electric shock to personnel and damage to internal electrical components from external environmental factors (such as dust and moisture).
[0003] In order to better dissipate heat and save costs, most existing low-voltage distribution cabinets are placed in shady places. With the change of temperature, a lot of water vapor can easily accumulate in shady places, resulting in high humidity inside the distribution cabinet. This can easily cause corrosion to the electrical equipment inside the distribution cabinet and affect the normal operation of the equipment. Therefore, a moisture-proof low-voltage cabinet is needed to help solve this problem. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a moisture-proof low-pressure cabinet. The moisture-proof low-pressure cabinet can effectively filter the moisture in the air entering the cabinet body through the filter medium, and can avoid the need for frequent replacement of the filter medium while preventing moisture.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a moisture-proof low-pressure cabinet, which includes a low-pressure cabinet body. The low-pressure cabinet body has an internal cavity. The two sides of the low-pressure cabinet body are symmetrically provided with guide grooves. The inner side of the cavity is provided with a heat dissipation groove. A hinge plate is hinged to the inner side of the heat dissipation groove. An air inlet is drilled at the middle section of the outer side of the low-pressure cabinet body. The guide groove is connected to the air inlet. A hinge plate is hinged to the inner side of the guide groove corresponding to the air inlet. An auxiliary dehumidification heat dissipation component is installed below the air inlet on the outer side of the low-pressure cabinet body.
[0008] The front end of the low-voltage cabinet body is hinged to a cabinet door, which has ventilation holes and a baffle plate is hinged to the ventilation holes. A hook is provided on the end of the cabinet door away from the hinge, and a fixing component is provided on the end of the low-voltage cabinet body away from the hinge. The fixing component and the hook are fixed together.
[0009] Furthermore, the heat dissipation assembly includes a mounting plate, a conductive box is fixed to one side of the mounting plate by bolts, a filter chamber is provided inside the conductive box, a filter medium is placed in the filter chamber, an air inlet is provided at one end of the conductive box, a cross-shaped fixing frame is fixed at the air inlet, a fan wheel is rotatably mounted on the fixing frame, a servo motor for assisting the rotation of the fan wheel is mounted on the fixing frame, and an air guide groove communicating with the filter chamber is provided on the mounting plate.
[0010] Furthermore, a filter screen is installed inside the filter chamber of the low-pressure cabinet body, and a heating tube is installed inside the filter screen.
[0011] Furthermore, a plurality of air guide channels are provided, and the plurality of air guide channels are equidistantly arranged on the mounting plate.
[0012] Furthermore, a plurality of heat dissipation slots are provided, and the plurality of heat dissipation slots are equidistantly arranged on the receiving cavity.
[0013] Furthermore, the fixing component includes a hinged seat fixed to the low-voltage cabinet body, a pressing plate hingedly mounted on the hinged seat, a hinged ring hingedly mounted on the pressing plate, and the hinged ring and the hook engaging and fixing each other.
[0014] Furthermore, a protective pad is embedded on one side of the low-voltage cabinet body and the cabinet door, and the two protective pads cooperate to seal.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model utilizes a heat dissipation component installed on the side of the low-voltage switchgear body. The filter medium effectively filters moisture from the air entering the switchgear body. After a period of heat dissipation, a servo motor and heating element are activated. The servo motor drives the impeller to reverse direction, causing airflow to enter the guide box through the guide groove. The airflow then enters the guide groove through the air inlet. Simultaneously, the air inside the receiving cavity is prevented from entering the guide groove by the hinge plate. The heating element is activated to provide auxiliary heating to the filter medium. After the impeller reverses direction, the airflow carrying humid air is discharged through the air guide groove, preventing moisture absorption and avoiding frequent filter medium replacements.
[0018] This utility model, through the cooperation of the fixed components and hooks, hangs the hinge ring on the hook. Pressing one end of the pressing plate pulls the hinge ring, thereby tightening it with the hook. This completes the overall fixation of the low-voltage cabinet body to the cabinet door, ensuring that the cabinet door can stably fit against the low-voltage cabinet body during operation and ensuring relative sealing inside the low-voltage cabinet body. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the low-voltage switchgear body corresponding to the air inlet.
[0022] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0023] Figure 4 This is a longitudinal sectional view of the heat dissipation component of this utility model.
[0024] The labels in the attached diagram are as follows: 1. Low-voltage cabinet body; 2. Cabinet door; 3. Receiving cavity; 4. Guide groove; 5. Hinge plate; 6. Air inlet; 7. Heat dissipation assembly; 8. Mounting plate; 81. Air guide groove; 9. Guide box; 10. Filter screen cylinder; 11. Heating tube; 12. Filter medium; 13. Fan wheel; 131. Servo motor; 14. Protective pad; 15. Fixing assembly; 16. Hinge seat; 17. Pressing plate; 18. Hinge ring; 19. Hook. Detailed Implementation
[0025] 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.
[0026] This specific embodiment is a moisture-proof low-pressure cabinet, such as... Figure 1 , Figure 2 and Figure 3 As shown, the moisture-proof low-pressure cabinet includes a low-pressure cabinet body 1, an accommodating cavity 3 inside the low-pressure cabinet body 1, symmetrically arranged guide grooves 4 on both sides of the low-pressure cabinet body 1, a heat dissipation groove on the inner side of the accommodating cavity 3, and several heat dissipation grooves are arranged at equal intervals on the accommodating cavity 3. A hinge plate 5 is hingedly installed on the inner side of the heat dissipation groove. An air inlet 6 is drilled at the middle section of the outer side of the low-pressure cabinet body 1. The guide groove 4 is connected to the air inlet 6. A hinge plate 5 is hingedly installed on the inner side of the guide groove 4 corresponding to the air inlet 6.
[0027] The front end of the aforementioned low-voltage cabinet body 1 is hinged to a cabinet door 2. The cabinet door 2 has ventilation holes, and a baffle plate is hinged to the ventilation holes. The baffle plate can open the ventilation holes when air is vented. A hook 19 is protruding from the end of the cabinet door 2 away from the hinge. A fixing component 15 is provided at the end of the low-voltage cabinet body 1 away from the hinge. The fixing component 15 and the hook 19 are fixed together. The fixing component 15 includes a hinge seat 16 fixed to the low-voltage cabinet body 1. A pressing plate 17 is hinged to the hinge seat 16. A hinge ring 18 is hinged to the pressing plate 17. The hinge ring 18 and the hook 19 are locked together.
[0028] By cooperating with the fixed components 15 and hooks 19, the hinge ring 18 is hung on the hook 19. Pressing one end of the pressing plate 17 pulls the hinge ring 18, thereby tightening it with the hook 19. This completes the overall fixation of the low-voltage cabinet body 1 to the cabinet door 2, ensuring that the cabinet door 2 can stably fit against the low-voltage cabinet body 1 during operation, and ensuring relative sealing inside the low-voltage cabinet body 1.
[0029] Protective pads 14 are embedded on one side of the low-voltage cabinet body 1 and cabinet door 2, and the two protective pads 14 work together to seal. The protective pads 14 can improve the overall sealing between the low-voltage cabinet body 1 and cabinet door 2 during operation.
[0030] Reference Figure 1 and Figure 4As shown, an auxiliary dehumidification heat dissipation component 7 is installed on the outer side of the low-voltage cabinet body 1 below the air inlet 6. The heat dissipation component 7 includes a mounting plate 8. A conductive box 9 is fixed to one side of the mounting plate 8 by bolts. A filter chamber is set inside the conductive box 9. A filter medium 12 is placed in the filter chamber. The filter medium 12 can be water-absorbing resin, activated carbon, etc. An air inlet is set at one end of the conductive box 9. A cross-shaped fixing frame is fixed at the air inlet. A fan wheel 13 is rotatably set on the fixing frame. A servo motor 131 is installed on the fixing frame to assist the fan wheel 13 in rotating. A guide trough 81 communicating with the filter chamber is opened on the mounting plate 8. Several guide troughs 81 are set. Several guide troughs 81 are equidistantly arranged on the mounting plate 8. A filter screen cylinder 10 is installed in the filter chamber of the low-voltage cabinet body 1. A heating tube 11 is installed inside the filter screen cylinder 10.
[0031] The heat dissipation component 7, installed on the side of the low-voltage cabinet body 1, and the filter medium 12, can effectively filter the moisture in the air entering the low-voltage cabinet body 1. After a period of heat dissipation, the servo motor 131 and the heating tube 11 are activated. The servo motor 131 drives the impeller 13 to reverse. During the reversal of the impeller 13, the airflow is driven from the guide groove 4 into the guide box 9. At this time, the airflow enters the guide groove 4 through the air inlet 6. Meanwhile, the air inside the receiving cavity 3 is blocked by the hinge plate 5 to prevent the airflow inside the receiving cavity 3 from entering the guide groove 4. At the same time, the heating tube 11 is activated to provide auxiliary heating for the medium inside the filter medium 12. After the impeller 13 reverses, the airflow with humid air is discharged through the air guide groove 81. This can prevent moisture and avoid the need for frequent replacement of the filter medium 12.
[0032] Working principle:
[0033] During operation, the cabinet door 2 is closed onto the low-voltage cabinet body 1, the hinge ring 18 is hung on the hook 19, and one end of the pressing plate 17 is pressed, which causes the hinge ring 18 to be pulled, thereby engaging and tightening with the hook 19, thus completing the overall fixation of the low-voltage cabinet body 1 onto the cabinet door 2.
[0034] During heat dissipation, the servo motor 131 is started, which drives the fan wheel 13 to rotate forward. During the forward rotation of the fan wheel 13, the airflow is driven from the outside through the air guide groove 81 into the filter medium 12. The filter medium 12 effectively filters the water vapor in the air. The filtered gas passes through the guide groove 4 and drives the airflow through the heat dissipation groove into the receiving cavity 3. When the airflow passes through the heat dissipation groove, it pushes open the hinge plate 5, thereby realizing the overall heat dissipation of the internal components of the low-voltage cabinet body 1. The airflow is discharged through the heat dissipation holes on the cabinet door 2.
[0035] After a period of heat dissipation, the servo motor 131 and the heating tube 11 are started. The servo motor 131 drives the impeller 13 to reverse. During the reverse rotation of the impeller 13, the airflow is driven from the guide groove 4 into the guide box 9. At this time, the airflow enters the guide groove 4 through the air inlet 6. Meanwhile, the air inside the receiving cavity 3 is prevented from entering the guide groove 4 due to the obstruction of the hinge plate 5. At the same time, the heating tube 11 is started to provide auxiliary heating treatment for the medium inside the filter medium 12. After the impeller 13 reverses, the airflow with humid air is discharged through the air guide groove 81.
[0036] All technical features in this embodiment can be freely combined according to actual needs.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A moisture-proof low-voltage cabinet, comprising a low-voltage cabinet body (1), characterized in that, The low-voltage cabinet body (1) has an internal cavity (3). The two sides of the low-voltage cabinet body (1) are symmetrically provided with guide grooves (4). The inner side of the cavity (3) is provided with a heat dissipation groove. The inner side of the heat dissipation groove is hinged with a hinge plate (5). The middle section of the outer side of the low-voltage cabinet body (1) is drilled with an air inlet (6). The guide groove (4) is connected to the air inlet (6). The inner side of the guide groove (4) is hinged with a hinge plate (5) corresponding to the air inlet (6). The lower part of the outer side of the low-voltage cabinet body (1) corresponding to the air inlet (6) is provided with a heat dissipation component (7) for auxiliary dehumidification. The front end of the low-voltage cabinet body (1) is hinged to a cabinet door (2). The cabinet door (2) has a heat dissipation hole, and a blocking plate is hinged to the heat dissipation hole. A hook (19) is provided on the end of the cabinet door (2) away from the hinge. A fixing component (15) is provided on the end of the low-voltage cabinet body (1) away from the hinge. The fixing component (15) and the hook (19) are fixed together.
2. The moisture-proof low-pressure cabinet according to claim 1, characterized in that, The heat dissipation assembly (7) includes a mounting plate (8). A conductive box (9) is fixed to one side of the mounting plate (8) by bolts. A filter chamber is provided inside the conductive box (9). A filter medium (12) is placed in the filter chamber. An air inlet is provided at one end of the conductive box (9). A cross-shaped fixing frame is fixed at the air inlet. A fan wheel (13) is rotatably mounted on the fixing frame. A servo motor (131) is installed on the fixing frame to assist the fan wheel (13) in rotating. An air guide groove (81) communicating with the filter chamber is opened on the mounting plate (8).
3. A moisture-proof low-pressure cabinet according to claim 2, characterized in that, The filter chamber of the low-pressure cabinet body (1) is equipped with a filter screen cylinder (10), and a heating tube (11) is installed inside the filter screen cylinder (10).
4. A moisture-proof low-pressure cabinet according to claim 3, characterized in that, The air guide slots (81) are provided in a plurality of them, and the plurality of air guide slots (81) are equidistantly arranged on the mounting plate (8).
5. A moisture-proof low-pressure cabinet according to claim 1, characterized in that, The heat dissipation grooves are provided in a plurality of them, and the plurality of heat dissipation grooves are equidistantly arranged on the receiving cavity (3).
6. A moisture-proof low-pressure cabinet according to claim 1, characterized in that, The fixing component (15) includes a hinge seat (16) fixed on the low-voltage cabinet body (1), a pressing plate (17) is hingedly installed on the hinge seat (16), a hinge ring (18) is hingedly installed on the pressing plate (17), and the hinge ring (18) is engaged and fixed with the hook (19).
7. A moisture-proof low-pressure cabinet according to claim 6, characterized in that, Protective pads (14) are embedded on the side of the low-voltage cabinet body (1) and the cabinet door (2) adjacent to each other, and the two protective pads (14) cooperate to seal.