A combined low-voltage cabinet waterproof heat dissipation top cover
By designing a combined low-pressure cabinet waterproof heat dissipation ceiling, using components such as roof plate, top cover, suspended ring and welded wire mesh, combined with seal strips and waterproof pads, the problem that the existing low-pressure cabinet ceiling cannot be completely waterproof and dustproof, and effective natural ventilation and advanced protection levels are achieved.
Patent Information
- Application Number
- CN202421445404.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The top cover of the existing low-pressure cabinet cannot completely cover the top of the cabinet, resulting in the dew droplets and dust entering the cabinet, making it impossible to effectively waterproof and dustproof.
A combined low-pressure cabinet waterproof heat dissipation roof is designed, including top plate, top cover, hanging ring and welded wire mesh. It is fixed by self-tapping screws, combined with sealing strips and waterproof pads to achieve sealing and natural ventilation of the roof.
This design not only prevents vertical dripping and dust from intrusion, but also ensures natural ventilation of the top cover, meets the needs of different number of cabinets, improves the protection level of the cabinet to IP41, and ensures the operational safety of power equipment components.
Smart Images

Figure CN222749897U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of low-voltage cabinets, in particular to a combined low-voltage cabinet waterproof heat dissipation top cover. Background Art
[0002] With the increasing development of electrical technology, low-voltage cabinets and other electrical equipment play an increasingly important role in people's lives. However, since the continuous operation of electrical equipment may cause overheating, affecting the safety of equipment and current systems, an effective heat dissipation system is needed to ensure the normal operation of electrical equipment. At the same time, low-voltage cabinets are used in a long-term unattended state, and it is necessary to ensure that the internal components of the electrical equipment are not infringed by moisture; the existing low-voltage cabinet top cover is generally a front and rear two-section split top cover, which cannot completely cover the top of the cabinet, and cannot prevent condensation water droplets in the distribution room from entering the cabinet; nor can it effectively prevent dust from invading from the top cover.
[0003] Therefore, it is necessary to develop a new type of low-voltage cabinet waterproof heat dissipation top cover to overcome the above problems. Utility Model Content
[0004] Purpose of the utility model: In view of the shortcomings and defects of the prior art, the utility model provides a combined low-voltage cabinet waterproof heat dissipation top cover, providing an effective natural ventilation and heat dissipation method; ensuring that the internal components of the power equipment are not damaged by moisture, strengthening the waterproofing between cabinets to meet the needs of different numbers of cabinets; and effectively preventing dust from invading from the top cover.
[0005] Technical solution: The utility model is a combined low-voltage cabinet waterproof heat dissipation top cover, which is characterized by: comprising a top plate one, several top plates two, and a top plate three; the tops of the top plates one, two and three are each provided with a top cover and several hanging rings, a welding wire mesh is arranged outside the heat dissipation holes below the top cover, and the front part of the top cover welding part and the rear part of the top cover welding part are respectively arranged on both sides of the welding wire mesh; the top cover is fixed by self-tapping screws, and a corresponding waterproof pad two is arranged at the self-tapping screws; the corresponding waterproof pad one is arranged at the hanging ring; a U-shaped bend is arranged above the weld between the top plate one and the top plate two, between the top plates two, and between the top plate two and the top plate three.
[0006] Among them, the bottoms of the top plate 1, several top plates 2, and top plate 3 are respectively provided with corresponding low-voltage cabinet bodies.
[0007] Among them, the front part of the top cover welding part, the rear part of the top cover welding part, the welding wire mesh and the corresponding top plate are an integrated structure, and a sealing strip is provided between the integrated structure and the top cover.
[0008] Wherein, the edge of the top cover is bent downward by 45°.
[0009] Wherein, the top cover is connected to the top plate one, the top plate two or the top plate three through a plurality of self-tapping screws.
[0010] There are four lifting rings on the top plate, and the four lifting rings are located at four corners of the top plate.
[0011] Wherein, the number of the top plates 2 is one or more than two.
[0012] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages: the utility model can not only meet the requirements of preventing vertical dripping, but also ensure the natural ventilation of the top cover, and can also meet the protection requirements of the cabinets on both sides and between the cabinets. With the use of sealing strips, the cabinet protection level can reach IP41, which well ensures the safe operation of the components in the cabinet. Adjusting the number of top covers can also meet the needs of different cabinet numbers. Low cost, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the top plate welding of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the four cabinets of the utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the three cabinets of the utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the waterproof pad of the utility model;
[0018] Figure 6 It is a side view structural schematic diagram of the utility model;
[0019] Figure 7 This is a schematic diagram of the cabinet joint of the utility model;
[0020] In the figure, 1 is top plate one; 2 is top plate two; 3 is top plate three; 4 is the front part of the top cover welding part; 5 is the rear part of the top cover welding part; 6 is the top cover; 7 is the lifting ring; 8 is waterproof pad one; 9 is the self-tapping screw; 10 is waterproof pad two; 11 is the welding wire mesh; and 12 is the sealing strip. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0022] The utility model comprises a combined low-voltage cabinet waterproof heat dissipation top cover, comprising a top plate 1, a plurality of top plates 2, and a top plate 3; the tops of the top plates 1, 2, and 3 are all provided with a top cover 6 and a plurality of hanging rings 7, a welding wire mesh 11 is provided outside the heat dissipation hole below the top cover 6, and the two sides of the welding wire mesh 11 are respectively provided with a front part 4 of the top cover welding part and a rear part 5 of the top cover welding part; the top cover 6 is fixed by a self-tapping screw 9, and a corresponding waterproof pad 2 10 is provided at the self-tapping screw 9; a corresponding waterproof pad 1 8 is provided at the hanging ring 7; a U-shaped bend is provided above the weld between the top plate 1 and the top plate 2, between the top plates 2, and between the top plates 2 and the top plates 3. Among them, the bottoms of the top plate 1, a plurality of top plates 2, and the top plates 3 are respectively provided with corresponding low-voltage cabinet bodies. The front part 4 of the top cover welding part, the rear part 5 of the top cover welding part, the welding wire mesh 11 and the corresponding top plate are an integrated structure, and the welding form is adopted to ensure that there is no gap at the connection. A sealing strip 12 is provided between the integrated structure and the top cover 6. The edge of the top cover 6 is bent downward by 45 degrees. The top cover 6 is connected to the top plate 1, the top plate 2 or the top plate 3 by a plurality of self-tapping screws 9. The number of the lifting rings 7 on the top plate is 4, and the 4 lifting rings 7 are located at the 4 corners of the top plate. The number of the top plate 2 2 is single or more than two.
[0023] The utility model realizes the requirements of natural heat dissipation and ventilation of the low-voltage cabinet body and prevention of dripping water intrusion. The heat dissipation holes are protected by welding wire mesh 11, so that the top cover 6 can prevent the entry of solid objects larger than φ1mm; the waterproof pad 1 8 used at the hanging ring 7 and the waterproof pad 2 10 used at the self-tapping screw 9 of the top cover 6 can prevent the direct intrusion of dripping water; the 45° edge of the top cover 6 is far larger than the width of the heat dissipation hole, which can effectively prevent water droplets from rebounding and intruding from the heat dissipation hole; the left side of the top cover 6 of the top plate 1 is widened, the right side of the top cover 6 of the top plate 3 is widened, and the right side of the top cover 6 of the top plate 1 and the top plate 2 2 is U-shaped bent downward, so as to increase the area of the top plate for collecting water droplets, so as to meet the protection requirements on both sides of the cabinet and between the cabinets. The waterproof top cover 6 can not only meet the requirements of preventing vertical dripping, but also ensure natural ventilation of the top cover, and can also meet the protection requirements on both sides of the cabinet and between the cabinets. The use of the sealing strip 12 can make the cabinet protection level reach IP41, which well ensures the safe operation of the components in the cabinet. Increasing the number of top plates 2 can meet the needs of different numbers of cabinets.
Claims
1. A combined low-voltage cabinet waterproof heat dissipation top cover, characterized in that: The invention comprises a top plate one (1), a plurality of top plates two (2), and a top plate three (3); the tops of the top plates one (1), two (2), and three (3) are all provided with a top cover (6) and a plurality of hanging rings (7); a welding wire mesh (11) is arranged outside the heat dissipation hole below the top cover (6); a front part (4) of a top cover welding part and a rear part (5) of a top cover welding part are respectively arranged on both sides of the welding wire mesh (11); the top cover (6) is fixed by self-tapping screws (9), and a corresponding waterproof pad two (10) is arranged at the self-tapping screws (9); a corresponding waterproof pad one (8) is arranged at the hanging ring (7); a U-shaped bend is arranged above the welds between the top plate one (1) and the top plate two (2), between the top plates two (2), and between the top plate two (2) and the top plate three (3).
2. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The top plate one (1), a plurality of top plates two (2), and the top plate three (3) are respectively provided with corresponding low-voltage cabinet bodies at the bottom.
3. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The front part (4) of the top cover welding part, the rear part (5) of the top cover welding part, the welding wire mesh (11) and the corresponding top plate are an integrated structure, and a sealing strip (12) is provided between the integrated structure and the top cover (6).
4. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The edge of the top cover (6) is bent downward by 45 degrees.
5. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The top cover (6) is connected to the top plate one (1), the top plate two (2) or the top plate three (3) via a plurality of self-tapping screws (9).
6. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The number of the hanging rings (7) on the top plate is 4, and the 4 hanging rings (7) are located at the 4 corners of the top plate.
7. The combined low-voltage cabinet waterproof heat dissipation top cover according to claim 1 is characterized in that: The number of the top plate 2 (2) is one or more than two.