Waterproof structure of an electrical box
By installing a waterproof structure with a water-blocking frame and a water-guiding channel on the electrical box, the problem of insufficient waterproof performance of the electrical box is solved, achieving a significant waterproof effect and convenient installation of electronic components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN SHUNDE JIETONG POWER EQUIP CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-02
AI Technical Summary
When the existing electrical box is used outdoors, its waterproof performance is insufficient. Rainwater can easily seep in through gaps or the power switch and operation interface areas, causing internal electrical components to become damp and damaged. In addition, moisture can easily be introduced when the waterproof cover is opened.
Design a waterproof structure including a water-blocking frame and a water-blocking edge. The water-blocking frame is set around the installation area, combined with a water guide groove and a recessed installation groove. The water-blocking edge and the water-blocking frame form a water guide groove to prevent water from entering, and the transparent observation window reduces the frequency of opening the cover.
It effectively blocks rainwater from entering the installation area, prevents water from entering the electrical box, improves waterproof performance, and facilitates the installation and protection of electronic components.
Smart Images

Figure CN224318935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproof electrical boxes, specifically to a waterproof structure for an electrical box. Background Technology
[0002] An electrical box is a low-voltage power distribution device that assembles switching equipment, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal box according to electrical wiring requirements. It is one of the most basic power supply facilities in urban construction.
[0003] When existing electrical boxes are used outdoors, rainy weather often presents challenges due to insufficient waterproofing. Rainwater seeps into the box through gaps or into the mounting areas of power switches and control panels, causing damage to internal electrical components and affecting normal operation. While some waterproof electrical boxes exist, waterproofing is primarily achieved through sealing gaps in the overall structure. This reduces rainwater ingress but doesn't effectively prevent water from seeping in through the mounting areas of power switches and control panels. Furthermore, opening the waterproof cover in the mounting area for electrical control operations or instrument checks can easily introduce moisture from the cover into the mounting groove, leading to water ingress.
[0004] This utility model proposes an improvement solution based on the above-mentioned problems. Utility Model Content
[0005] The present invention aims to overcome the shortcomings of the prior art and provide a waterproof structure for electrical boxes that is simple in structure and has excellent waterproof effect. It can completely prevent rainwater or other moisture from entering the installation area and avoid damage to the internal electrical appliances.
[0006] This utility model is achieved through the following technical solution:
[0007] A waterproof structure for an electrical box includes an electrical box body, a mounting area for installing a power switch or control interface on the front door of the electrical box body, and a waterproof cover plate covering the mounting area. A waterproof structure is provided between the mounting area and the waterproof cover plate to prevent water from entering the mounting area. The waterproof structure includes a water-blocking frame with a certain width fixed to the front door, and the water-blocking frame is arranged around the periphery of the mounting area.
[0008] As described above, the waterproof structure of the electrical box has a notch at the bottom of the water-blocking frame.
[0009] As described above, in the waterproof structure of the electrical box, the water-blocking frame is a gate-shaped or semi-circular arc-shaped water-blocking frame with an opening at the bottom.
[0010] As described above, the waterproof structure of the electrical box includes an outwardly folded water-blocking edge on the water-blocking frame, and the water-blocking frame, the water-blocking edge, and the front door together form a water-guiding channel.
[0011] In the waterproof structure of the electrical box described above, the angle between the water-blocking edge and the water-blocking frame is a right angle or an obtuse angle.
[0012] As described above, the waterproof structure of the electrical box includes at least one mounting groove recessed into the electrical box body relative to the front door within the mounting area.
[0013] As described above, the electrical box has a waterproof structure with a transparent observation window on the waterproof cover.
[0014] Compared with the prior art, the present invention has the following advantages:
[0015] 1. The waterproof structure of the electrical box of this utility model is simple in structure and has a significant waterproof effect. It can effectively prevent rainwater or other moisture from entering the installation area and prevent water from entering the electrical box.
[0016] 2. This utility model effectively guides rainwater out through the combined design of the water-blocking edge and the water-guiding channel, preventing it from flowing into the installation area.
[0017] 3. The recessed design of the mounting groove in this utility model, combined with the water-blocking frame, further enhances the waterproof performance and facilitates the installation and protection of electronic components. Attached Figure Description
[0018] To more clearly illustrate the structural features and effects of this utility model, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0019] Figure 1 This is a schematic diagram of the waterproof structure of the electrical box of this utility model;
[0020] Figure 2 This is another schematic diagram of the waterproof structure of the electrical box of this utility model;
[0021] Figure 3 This is a cross-sectional schematic diagram of the front door and waterproof structure of this utility model. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0023] like Figure 1-3As shown, a waterproof structure for an electrical box includes an electrical box body 1, an installation area 2 for installing a power switch or control interface on the front door 11 of the electrical box body 1, and a waterproof cover plate 3 covering the installation area 2. A waterproof structure 4 is provided between the installation area 2 and the waterproof cover plate 3 to prevent water from flowing into the installation area 2. The waterproof structure 4 includes a water-blocking frame 41 with a certain width fixed on the front door 11, and the water-blocking frame 41 is arranged around the periphery of the installation area 2.
[0024] The waterproof structure of this utility model electrical box is simple in structure and has a good waterproof effect. The waterproof structure 4 can effectively prevent rainwater or other moisture from entering the installation area 2 through the installation gap of the waterproof cover 3 and the front door, or prevent rainwater or other moisture from accidentally flowing into the installation area 2 when the waterproof cover 3 is opened, thereby effectively preventing rainwater from entering the electrical box body 1 through the installation area 2.
[0025] like Figure 1 As shown, in this embodiment, the water-blocking frame 41 has a notch 411 at the bottom for draining accumulated water and assisting in heat dissipation.
[0026] Furthermore, the water-blocking frame 41 is a gate-shaped or semi-circular arc-shaped water-blocking frame with an opening at the bottom.
[0027] like Figure 1 or Figure 3 As shown, in this utility model, the water-blocking frame 41 is provided with an outwardly folded water-blocking edge 42. The water-blocking frame 41, the water-blocking edge 42, and the front door 11 together form a water-guiding channel 43. By setting the outwardly folded water-blocking edge 42, rainwater is diverted back to the water-blocking frame 41 and led out through the water-guiding channel 43, which can effectively prevent rainwater from flowing into the installation area 2.
[0028] In this invention, the angle between the water-blocking edge 42 and the water-blocking frame 41 is a right angle or an obtuse angle. In this embodiment, a right angle is preferred, which can better prevent rainwater from directly entering through the installation gap or from accidentally flowing into the installation area 2 through the gap between the waterproof cover 3 and the front door 11 when the waterproof cover 3 is opened.
[0029] like Figure 1-3 As shown, the installation area 2 is provided with at least one mounting groove 21 that is recessed into the electrical box body 1 relative to the front door 11. The mounting groove 21 is used to install power switches, instruments, and electrical control buttons, etc. These electronic components are installed in the recessed mounting groove 21 to avoid exposure and can be well covered by the water-blocking frame 41, thereby enhancing the waterproof effect.
[0030] like Figure 2 As shown, the waterproof cover 3 of this utility model is provided with a transparent observation window 31. The indication status of the instruments in the installation area 2 can be observed or read through the observation window 31, reducing the frequency of opening the waterproof cover 3 and thus better achieving the waterproof function.
Claims
1. A waterproof structure for an electrical box, comprising an electrical box body (1), characterized in that... The front door (11) of the electrical box body (1) is provided with an installation area (2) for installing a power switch or control interface, and a waterproof cover plate (3) covering the installation area (2). A waterproof structure (4) is provided between the installation area (2) and the waterproof cover plate (3) to prevent water from entering the installation area (2). The waterproof structure (4) includes a water-blocking frame (41) with a certain width fixed on the front door (11). The water-blocking frame (41) is arranged around the periphery of the installation area (2). The water-blocking frame (41) is provided with an outwardly folded water-blocking edge (42), and the water-blocking frame (41), the water-blocking edge (42), and the front door (11) together form a water guide channel (43).
2. The waterproof structure of the electrical box according to claim 1, characterized in that... The water-blocking frame (41) has a notch (411) at the bottom.
3. The waterproof structure of the electrical box according to claim 1, characterized in that... The water-blocking frame (41) is a gate-shaped or semi-circular arc-shaped water-blocking frame with an opening at the bottom.
4. The waterproof structure of the electrical box according to claim 1, characterized in that... The angle between the water-blocking edge (42) and the water-blocking frame (41) is a right angle or an obtuse angle.
5. The waterproof structure of the electrical box according to claim 1, characterized in that... The installation area (2) is provided with at least one installation groove (21) that is recessed into the electrical box body (1) relative to the front door (11).
6. The waterproof structure of the electrical box according to claim 1, characterized in that... The waterproof cover (3) is provided with a transparent observation window (31).