Moistureproof electric appliance cabinet grounding structure
By using a waterproof cover and sealing plate structure in the grounding structure of the electrical cabinet, combined with a breathable membrane and desiccant, the problems of oxidation and moisture ingress of the grounding structure in high humidity environments are solved, thereby improving the waterproof performance and stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI ECT ELECTRIC CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-24
AI Technical Summary
The existing grounding structure of electrical cabinets is prone to oxidation in high humidity environments, which leads to a decrease in conductivity and cannot effectively prevent moisture from entering and affecting the stability of the device.
The structure employs a waterproof cover and sealing plate, combined with a breathable membrane and desiccant, to form a moisture-proof component that prevents moisture from entering and absorbs internal moisture, thereby improving sealing and stability.
The combination of the waterproof cover and the sealing plate prevents external moisture from entering, keeps the inside of the device dry, and improves the waterproof performance and stability of the grounding structure.
Smart Images

Figure CN224164510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrical cabinet grounding structure, and in particular to a moisture-proof electrical cabinet grounding structure. Background Technology
[0002] Moisture-proof electrical cabinet grounding structures are electrical safety systems designed for high-humidity and dusty environments. Through corrosion-resistant grounding conductors and a sealed design, they ensure stable grounding of equipment under harsh conditions, preventing leakage and lightning strike risks. They are suitable for power, communication base stations, and industrial automation. Existing electrical cabinet grounding structures typically connect the grounding wire directly to a connecting plate, which is then installed on the side or bottom of the electrical cabinet. However, this structure, being directly exposed to the outside environment, is susceptible to oxidation of the connecting plate due to dew or moisture in the air, which in turn affects the conductivity of the device. Therefore, improvements are needed to address the aforementioned issues. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a moisture-proof electrical cabinet grounding structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a moisture-proof electrical cabinet grounding structure, including a waterproof cover. The front end of the top of the waterproof cover has multiple equidistant connection holes, and a gland is installed on the connection holes. A grounding component is installed inside the waterproof cover, and a moisture-proof component is installed at the front end of the waterproof cover.
[0005] Preferably, the grounding assembly includes a connecting seat extending through both sides of the lower end of the waterproof cover, the waterproof cover being fixedly connected to the connecting seat, a connecting plate being horizontally fixed to the top surface of the connecting seat, the connecting plate being placed inside the waterproof cover, and multiple terminals being fixedly connected to the top surface of the connecting plate.
[0006] Preferably, the terminal block has a threaded groove on its outer side, and a washer is fitted on the outer side of the terminal block. A locking nut is provided above the washer, and the locking nut is threadedly connected to the terminal block.
[0007] Preferably, the moisture-proof component includes a groove at the front end of the waterproof cover, a sealing plate is slidably connected in the groove, one end of the sealing plate penetrates through the waterproof cover, and an adhesive strip is provided at the connection point of the sealing plate penetrating through the waterproof cover, the adhesive strip being installed on the rear end face of the sealing plate.
[0008] Preferably, the sealing plate has an installation groove inside, and the front end face of the sealing plate has multiple ventilation holes through it, and a breathable membrane is installed on the rear end face inside the installation groove of the sealing plate.
[0009] Preferably, a desiccant is provided at the front end of the breathable membrane, and the desiccant is placed in the mounting groove.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the waterproof cover and the sealing plate facilitates the overall formation of a moisture-proof component, preventing external water from entering the interior of the waterproof cover and improving the sealing ability of the grounding component. The cooperation between the gland and the waterproof cover prevents external water from entering the waterproof cover from the wiring port, facilitating the sealing of the waterproof cover and improving the waterproof performance of the device. The cooperation between the breathable membrane and the desiccant facilitates the absorption of moisture inside the waterproof cover, keeping the interior of the waterproof cover dry and improving the stability of the device. This device improves the waterproof capability and performance stability of the device. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this utility model;
[0013] Figure 2 This is a schematic diagram of the overall structure proposed in this utility model from another perspective;
[0014] Figure 3 This is a three-dimensional schematic diagram of the grounding structure proposed in this utility model;
[0015] Figure 4 This is a three-dimensional schematic diagram of the sealing plate structure proposed in this utility model;
[0016] Figure 5 This is a cross-sectional schematic diagram of the sealing plate structure proposed in this utility model.
[0017] The items numbered in the diagram are: 1. Waterproof cover; 2. Connector; 3. Terminal block; 4. Washer; 5. Locking nut; 6. Connecting plate; 7. Gland head; 8. Sealing plate; 9. Adhesive strip; 10. Breathable membrane; 11. Desiccant. Detailed Implementation
[0018] 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.
[0019] Example: See Figure 1-5This utility model discloses a moisture-proof electrical cabinet grounding structure, including a waterproof cover 1. The front end of the top of the waterproof cover 1 has multiple equidistant connection holes, with gland heads 7 installed in the connection holes. A grounding component is installed inside the waterproof cover 1, and a moisture-proof component is installed at the front end of the waterproof cover 1. The grounding component includes a connecting seat 2 that passes through both sides of the lower end of the waterproof cover 1, facilitating the installation of devices. The waterproof cover 1 is fixedly connected to the connecting seat 2. A connecting plate 6 is horizontally fixed to the top surface of the connecting seat 2, and the connecting plate 6 is placed inside the waterproof cover 1. Multiple terminals 3 are fixedly connected to the top surface of the connecting plate 6, facilitating the connection of grounding wires. A threaded groove is opened on the outer side of the terminal 3, and a washer 4 is sleeved on the outer side of the terminal 3. A locking nut 5 is provided above the washer 4, and the locking nut 5 is threadedly connected to the terminal 3, facilitating the fixing of the connecting wires through the locking nut 5 and the washer 4.
[0020] In this utility model, the moisture-proof component includes a groove at the front end of the waterproof cover 1, a sealing plate 8 slidably connected in the groove, one end of the sealing plate 8 penetrating the waterproof cover 1, and an adhesive strip 9 at the connection point of the sealing plate 8 penetrating the waterproof cover 1, which facilitates the sealing of the waterproof cover 1 through the groove and the adhesive strip 9; the adhesive strip 9 is installed on the rear end face of the sealing plate 8; an installation groove is opened inside the sealing plate 8, and multiple vent holes are opened through the front end face of the sealing plate 8, and a breathable membrane 10 is installed on the rear end face inside the installation groove of the sealing plate 8; a desiccant 11 is provided at the front end of the breathable membrane 10, and the desiccant 11 is placed in the installation groove, which facilitates the absorption of moisture inside the waterproof cover 1 through the vent holes and the breathable membrane 10.
[0021] Working principle: When using this utility model, first install the device in the electrical cabinet through the connecting seat 2. Then slide the sealing plate 8 out of the slide groove and pass the grounding wire into the waterproof cover 1 through the gland 7. Then put the front end on the terminal block 3. Then tighten the locking nut 5 to fix the grounding wire. Then slide the sealing plate 8 into the slide groove. At this time, the rubber strip 9 seals the waterproof cover 1. When it is necessary to observe the grounding wire connection, slide the sealing plate 8 out. When the observation is completed, close the waterproof cover 1. If there is humid gas inside, the water vapor in the air will enter through the vent and the vent membrane 10 and be absorbed by the desiccant 11 placed in the installation groove.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A moisture-proof electrical cabinet grounding structure, comprising a waterproof cover (1) characterized in that: The waterproof cover (1) has multiple equidistant connection holes at the front end of its top surface. A gland (7) is installed on the connection hole. A grounding component is installed inside the waterproof cover (1), and a moisture-proof component is installed at the front end of the waterproof cover (1).
2. The grounding structure for a moisture-proof electrical cabinet according to claim 1, characterized in that: The grounding assembly includes a connecting seat (2) that runs through both sides of the lower end of the waterproof cover (1). The waterproof cover (1) is fixedly connected to the connecting seat (2). A connecting plate (6) is horizontally fixed to the top surface of the connecting seat (2). The connecting plate (6) is placed inside the waterproof cover (1), and multiple terminals (3) are fixed to the top surface of the connecting plate (6).
3. The grounding structure for a moisture-proof electrical cabinet according to claim 2, characterized in that: The terminal (3) has a threaded groove on its outer side, and a gasket (4) is fitted on the outer side of the terminal (3). A locking nut (5) is provided above the gasket (4), and the locking nut (5) is threadedly connected to the terminal (3).
4. The grounding structure for a moisture-proof electrical cabinet according to claim 1, characterized in that: The moisture-proof component includes a groove at the front end of the waterproof cover (1), and a sealing plate (8) is slidably connected in the groove. One end of the sealing plate (8) passes through the waterproof cover (1), and a rubber strip (9) is provided at the connection point of the sealing plate (8) and the rubber strip (9) is installed on the rear end face of the sealing plate (8).
5. The grounding structure for a moisture-proof electrical cabinet according to claim 4, characterized in that: The sealing plate (8) has an installation groove inside, and the front end face of the sealing plate (8) has multiple ventilation holes. The rear end face inside the installation groove of the sealing plate (8) is fitted with a breathable membrane (10).
6. The grounding structure for a moisture-proof electrical cabinet according to claim 5, characterized in that: The front end of the breathable membrane (10) is provided with a desiccant (11), which is placed in the mounting groove.