Rainproof top for improving protection level of low-voltage switch cabinet
By installing a rainproof top structure on the top of the low-voltage switch cabinet, the internal moisture problem caused by the drop of condensate water is solved, and a higher protection level and safety is achieved, which is suitable for underground humid environments.
Patent Information
- Application Number
- CN202422107483.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In underground environments, the condensation water drops on the top of the low-voltage switch cabinet causes internal components to be damp, and the prior art is difficult to effectively prevent water droplets from penetrating.
A rainproof roof structure is designed, including the roof plate and the column, which is installed on the top of the switch cabinet through bolt connections. The roof plate is designed as a slope structure, and water droplets flow out along the slope, and the gaps in the adjacent cabinet are blocked through horizontal extension plates to ensure that water droplets do not enter the cabinet.
It effectively prevents water droplets from penetrating, improves the protection level of the switch cabinet, ensures safe and reliable use, and is suitable for humid environments.
Smart Images

Figure CN223066648U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rain-proof top in the technical field of low-voltage switch cabinets. Background Art
[0002] The low-voltage switch cabinet is a kind of complete set of power distribution equipment. It has the characteristics of small volume, light weight, compact structure, convenient installation and use, etc., and is widely used in various industrial production, residential, commercial and public utility fields, such as power systems, substations, power plants, mines, airports, subways, hospitals, schools, large shopping malls and other places. With the continuous development of each field, the demand for such low-voltage switch cabinets is increasing, and due to different environments, the requirements for the protection level of such switch cabinets are also very different. Especially in subway projects, such switch cabinets are all installed underground, and the humidity is relatively high. Therefore, dehumidification and heating devices are usually added inside the cabinets. However, due to the humidity of the underground space, there is often condensed water on its top. Larger water droplets formed by the aggregation of condensed water will drip on the top of the switch cabinet under the action of gravity, and will thus flow into the switch cabinet along the gaps of the switch cabinet, causing the internal components to get damp. Content of the Utility Model
[0003] The purpose of the utility model is to provide a rain-proof top for improving the protection level of a low-voltage switch cabinet, which is convenient to install and can better play the role of preventing water droplets from dripping on the cabinet, so that the protection level of the low-voltage power distribution cabinet is better improved, and the safety and reliability of the low-voltage switch cabinet are ensured.
[0004] To achieve the above purpose, the utility model provides a rain-proof top for improving the protection level of a low-voltage switch cabinet, including a top plate. The front end of the top plate is connected to the front end of the top of the switch cabinet through a front column, and the rear end of the top plate is connected to the rear end of the top of the switch cabinet through a rear column.
[0005] Compared with the prior art, the beneficial effect of the utility model lies in that the top plate is installed on the top of the switch cabinet through the front and rear columns. In this way, the water droplets dripping in the underground space can only fall on the top plate and will not fall on the switch cabinet, thus avoiding the penetration of water droplets into the switch cabinet. In this way, it is convenient to install and can better play the role of preventing water droplets from dripping on the cabinet, so that the protection level of the low-voltage power distribution cabinet is better improved, and the safety and reliability of the low-voltage switch cabinet are ensured.
[0006] As a further improvement of the utility model, the rear end of the top plate is open, and vertical baffles are processed at the left end, right end and front end of the top plate.
[0007] In this way, only one side of the four sides of the top plate is open, and the other three sides are surrounded by vertical baffles. The water droplets dripping on the top plate can only flow out from the open end at the rear end, avoiding the water droplets from flowing everywhere on the top plate.
[0008] As a further improvement of the utility model, the front and rear ends of the top plate extend outwardly from the front and rear ends of the switch cabinet, and the left and right ends of the top plate are flush with the left and right ends of the top of the switch cabinet respectively.
[0009] In this way, the front and rear ends of the top plate extend out of the switch cabinet, so that it can effectively carry the dripping water droplets, and the water droplets will not drip on the switch cabinet after flowing out from the rear end of the top plate, and the left and right ends of the top plate are flush with the left and right ends of the switch cabinet, which can ensure that the switch cabinets can be placed close together and side by side.
[0010] As a further improvement of the utility model, the top of the vertical baffle at the right end of the top plate is processed with an outwardly extending horizontal extension plate, and the vertical baffle at the right end of the top plate is higher than the vertical baffle at the left end of the top plate.
[0011] In this way, when the switch cabinets are placed side by side, the horizontal extension plate on the top plate of the left switch cabinet will cover the left end of the top plate of the adjacent right switch cabinet, thus ensuring that no water drops fall into the gap between the adjacent switch cabinets.
[0012] As a further improvement of the present invention, the front column is higher than the rear column; thus, the front end of the top plate is higher than the rear end, and water droplets on the top plate will slide down the top plate from front to back, thus preventing water droplets from accumulating on the top plate.
[0013] As a further improvement of the utility model, the front column and the rear column are hollow cuboids, one of the side surfaces is open, and screw holes are provided on the top and bottom of the front column and the rear column.
[0014] In this way, bolts are used to connect the top plate to the front and rear columns, and to connect the front and rear columns to the switch cabinet, making installation and disassembly more convenient.
[0015] As a further improvement of the present invention, the top of the front column and the top of the rear column are both processed into inclined surfaces, and the two inclined surfaces are on the same plane.
[0016] This allows the top plate and front and rear columns to fit perfectly together, making the bolt connection more secure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the assembly structure of the utility model.
[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0019] Among them, 1 is the top plate, 2 is the switch cabinet, 3 is the vertical baffle, 4 is the rear column, 5 is the bolt, 6 is the horizontal extension plate, and 7 is the front column. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings:
[0021] As Figure 1-2 shown, a rainproof top for improving the protection level of a low-voltage switchgear cabinet, including a top plate 1, the front end of the top plate 1 is connected to the front end of the top of the switchgear cabinet 2 through a front column 7, and the rear end of the top plate 1 is connected to the rear end of the top of the switchgear cabinet 2 through a rear column 4.
[0022] The rear end of the top plate 1 is open, and vertical baffles 3 are processed at the left end, right end and front end of the top plate 1. The front end and rear end of the top plate 1 extend outwards from the front end and rear end of the switchgear cabinet 2, and the left end and right end of the top plate 1 are flush with the left end and right end of the top of the switchgear cabinet 2 respectively. A horizontally extending plate 6 extending outwards is processed at the top of the vertical baffle 3 at the right end of the top plate 1, and the vertical baffle 3 at the right end of the top plate 1 is higher than the vertical baffle 3 at the left end of the top plate 1.
[0023] The front column 7 is higher than the rear column 4. The front column 7 and the rear column 4 are hollow cuboids, with one side open, and screw holes are provided at the top and bottom of the front column 7 and the rear column 4. The tops of the front column 7 and the rear column 4 are both processed into inclined surfaces, and the two inclined surfaces are on the same plane.
[0024] In the present utility model, the top plate 1 is surrounded by vertical baffles 3 on three sides and only the rear end is open. It is installed on the top of the switchgear cabinet 2 through the front column 7 and the rear column 4. Since the front column 7 is higher than the rear column 4, the top plate 1 forms a slope structure. After the water droplets on the top of the underground space fall on the top plate 1, they will flow from front to back along the top plate 1 and finally drain automatically from the top plate 1. Moreover, the front and rear ends of the top plate 1 both extend 40 mm beyond the front and rear ends of the switchgear cabinet 2, which has exceeded the installation position of the components on the cabinet door, ensuring that the water dripping from the upper part of the switchgear cabinet 2 cannot fall on the components on the door panel.
[0025] Both the front column 7 and the rear column 4 are hollow structures and have an opening on one side, so it is convenient to screw the bolts 5. During installation, first fix the front column 7 and the rear column 4 to the top of the switchgear cabinet 2 with bolts 5, and then fix the top plate 1 to the front column 7 and the rear column 4 with bolts 5. The overall installation and disassembly are very convenient.
[0026] When the switchgear cabinet 2 is actually in use, multiple cabinets are often placed side by side, so there must be a gap between each adjacent cabinet. The horizontally extending plate 6 on the vertical baffle 3 at the right end of the top plate 1 extends outwards to the right. Since the vertical baffle 3 at the right end of each top plate 1 is higher than the vertical baffle 3 at the left end, the horizontally extending plate 6 at the right end of the top plate 1 on the left switchgear cabinet 2 will block the left end of the top plate 1 of the right switchgear cabinet 2 and extend 25 mm to the right among two adjacent switchgear cabinets 2, so that the horizontally extending plate 6 can block the gap between the two switchgear cabinets 2. In this way, after the switchgear cabinets 2 are assembled, the water dripping from the upper part cannot drip into the cabinet interior from the joint.
[0027] The utility model is convenient for installation and disassembly, can achieve a good water-dripping prevention effect, improves the protection level of the switch cabinet 2, makes the switch cabinet 2 safer and more reliable, and can better adapt to the underground humid environment.
[0028] The utility model is not limited to the above embodiments. Based on the technical solutions disclosed herein, those skilled in the art can make some substitutions and deformations to some of the technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the utility model.
Claims
1. A rainproof top for improving the protection level of a low-voltage switchgear cabinet, characterized in that: It includes a top plate. The front end of the top plate is connected to the front end of the top of the switch cabinet through a front column, and the rear end of the top plate is connected to the rear end of the top of the switch cabinet through a rear column.
2. The rainproof top for improving the protection level of the low-voltage switchgear according to claim 1, characterized in that: The rear end of the top plate is open, and vertical baffles are processed at the left end, right end, and front end of the top plate.
3. The rainproof top for enhancing the protection level of a low-voltage switchgear cabinet according to claim 2, characterized in that: The front end and rear end of the top plate extend outwards from the front end and rear end of the switch cabinet, and the left end and right end of the top plate are respectively flush with the left end and right end of the top of the switch cabinet up and down.
4. A rainproof top for improving the protection level of a low-voltage switchgear cabinet according to claim 3, characterized in that: A horizontally extending plate protruding outwards is processed at the top of the vertical baffle at the right end of the top plate, and the vertical baffle at the right end of the top plate is higher than the vertical baffle at the left end of the top plate.
5. A rainproof top for improving the protection level of a low-voltage switchgear cabinet according to claim 4, characterized in that: The front column is higher than the rear column.
6. The rainproof top for improving the protection level of a low-voltage switchgear cabinet according to claim 5, characterized in that: The front column and the rear column are hollow cuboids with one side open, and screw holes are provided at the top and bottom of the front column and the rear column.
7. A rainproof top for improving the protection level of a low-voltage switchgear according to claim 6, characterized in that: The tops of the front column and the rear column are both processed into inclined surfaces, and the two inclined surfaces are on the same plane.