Easily-wired distribution automation station terminal

By designing protective box components and fixing components in the terminals of power distribution automation stations, and using a combination of waterproof and breathable membranes, heat dissipation holes, fixing pipes, and rubber rings, the problem of rainwater and dust ingress is solved, ensuring the normal operation of the equipment in harsh weather conditions and improving the safety and lifespan of the equipment.

CN224177755UActive Publication Date: 2026-04-28NANJING LANPO ELECTRICAL ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING LANPO ELECTRICAL ENGINEERING CO LTD
Filing Date
2025-03-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In heavy rain or strong winds, rainwater and moisture can easily splash or backflow into the cabinets of existing power distribution automation substations, causing the equipment to be affected by moisture and potentially leading to short circuits or leakage accidents. Furthermore, existing sealing measures are insufficient to completely prevent moisture and dust from entering.

Method used

The design includes protective box components and fixing components. The protective box components include a waterproof and breathable membrane and heat dissipation holes. The fixing components use fixing tubes and rubber rings to seal and fix the cables to prevent rainwater from entering the cabinet. The 45-degree angled heat dissipation holes and buckle structure are used to improve the sealing performance.

Benefits of technology

Effectively prevents rainwater and dust from entering, protects equipment from moisture, extends equipment life, and avoids short circuits or leakage accidents. Suitable for outdoor or humid environments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224177755U_ABST
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Abstract

The utility model discloses a distribution automation station terminal easy for wiring, and relates to the technical field of electrical cabinets. Comprising a bottom plate, a protection box assembly arranged at the top end of the bottom plate and used for protecting electronic elements, and a fixing assembly arranged on the outer wall of one side of the protection box assembly and used for fixing cables and preventing rainwater from entering a cabinet body to cause short circuit or electric leakage accidents. According to the utility model, through the sealing design of the fixing device, rainwater can be prevented from entering the cabinet body through splashing or backward flowing in rainstorm or strong wind weather, electrical equipment in the cabinet is protected from being affected by moisture and water immersion, the service life of the equipment is prolonged, rainwater is prevented from entering the cabinet body, short circuit or electric leakage accidents caused by moisture can be avoided, and the service life of the equipment is prolonged. The design is particularly suitable for outdoor power distribution cabinets, underground power distribution rooms or other humid environments, can effectively resist severe weather conditions, and can ensure normal operation of the equipment even in frequent rainfall or high-humidity areas.
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Description

Technical Field

[0001] This utility model relates to the field of electrical cabinets, specifically to a terminal for a power distribution automation station that is easy to wire. Background Technology

[0002] Due to the rapid development of smart distribution networks and their increasing market share, the number of distribution automation terminal devices being used is increasing. In distribution network construction projects, each ring network cabinet or feeder outgoing line of the distribution network needs a distribution automation terminal. Currently, the three-remote signal circuits between the station terminal and the switch cabinet 200 use a single wire to directly connect to the terminal block of the terminal equipment. However, the existing distribution cabinet has the problem of not being able to fix the cable structure and the inconvenience of installing internal electrical equipment. Therefore, a new structure is needed to solve this problem.

[0003] For example, in the easy-to-connect power distribution automation station terminal with patent publication number CN213484213U, an upper cover is rotatably connected to the upper side of the cabinet. This design facilitates the installation of electrical equipment by rotating the upper cover 90°. This design greatly improves the convenience of electrical equipment installation. A clamping tube is set at the lower side of one end of the cabinet. By adjusting the rotation of the screw, the clamping frame is moved towards the central axis of the clamping tube. This design facilitates the clamping frame to fit against the surface of the cable, thereby fixing the position of the cable. In addition, the clamping tube is fixed at a 10° angle with the horizontal plane. This design can prevent rainwater from the outside of the cabinet from entering the inside of the cabinet.

[0004] However, in the scenario where the above-mentioned equipment is connected to the terminal of a power distribution automation station, although the fixed pipe angle can prevent rainwater from flowing in directly, the sealing measures are not in place. A 10° tilt angle alone may not be able to fully meet the rain protection requirements. Especially in heavy rain or strong winds, rainwater may still enter the cabinet through splashing or backflow. In addition to rainwater, the cabinet may also be affected by other forms of moisture such as groundwater vapor and condensate. The tilt angle alone cannot effectively prevent these moisture, and the equipment operation may also be affected by the entry of wind, sand, dust or insects. Utility Model Content

[0005] The purpose of this invention is to provide an easy-to-connect terminal for power distribution automation stations, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-connect power distribution automation station terminal, including a base plate, a protective box assembly disposed on the top of the base plate, the protective box assembly being used to protect electronic components, and a fixing assembly disposed on one side of the outer wall of the protective box assembly, the fixing assembly being used to fix cables and prevent rainwater from entering the cabinet, thus preventing short circuits or leakage accidents.

[0007] As a specific solution of the technical solution of this application, the protective box assembly includes a protective box body, which is set on the top of the base plate. A waterproof and breathable membrane is fixedly connected to one side of the inner wall of the protective box body. A heat dissipation hole is opened at an angle on one side of the inner wall of the protective box body. A buckle is provided on one side of the outer wall of the protective box body. The buckle is pressed and connected to a buckle head, which is located on one side of the outer wall of the door panel.

[0008] As a specific embodiment of the technical solution of this application, a connecting groove is provided on the outer wall of the other side of the door panel, a connecting block is rotatably connected to the inner wall of the connecting groove, one side of the outer wall of the connecting block is fixedly connected to one side of the outer wall of the protective box body, a rotating hole is provided at the top of the inner wall of the connecting groove and the top of the connecting block, a rotating shaft is rotatably connected to the inner wall of the rotating hole, and a fixing hole is provided on one side of the outer wall of the protective box body.

[0009] As a specific solution of the technical solution of this application, the fixing component includes a fixing tube, which is disposed on the inner wall of the fixing hole. One end of the fixing tube is fixedly connected to an extrusion block, and a rubber plate is fixedly connected to the outer wall of one side of the extrusion block. The outer wall of the fixing tube is provided with threads, and a fixing cylinder is rotatably connected to the threads.

[0010] As a specific solution of the technical solution of this application, a limiting groove is opened on the inner wall of the fixed cylinder, and a placement groove is opened on the inner wall of the fixed tube. A rubber ring is fixedly connected to the inner wall of the placement groove, and a pressing plate is pressed and connected to the outer wall of one side of the rubber ring. The pressing plate is slidably connected to the placement groove.

[0011] As a specific solution of the technical solution of this application, a sliding hole is provided on one side of the outer wall of the placement groove, a sliding block is slidably connected to the inner wall of the sliding hole, one side of the outer wall of the sliding block is fixedly connected to one side of the outer wall of the extrusion plate, and the sliding block is slidably connected to the limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This easy-to-connect power distribution automation station terminal features a sealed design with conduit fixing devices to prevent rainwater from splashing or flowing into the cabinet during heavy rain or strong winds. This protects the electrical equipment inside the cabinet from moisture and water immersion, thus extending the equipment's lifespan. Preventing rainwater from entering the cabinet also avoids short circuits or leakage accidents caused by moisture, improving equipment safety. This design is particularly suitable for outdoor distribution cabinets, underground distribution rooms, or other humid environments, effectively resisting harsh weather conditions and ensuring normal operation of the equipment even in areas with frequent rainfall or high humidity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the protective box assembly structure of this utility model;

[0016] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of fixed component A in the middle;

[0017] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of fixed component A in the middle.

[0018] In the diagram: 1. Base plate; 2. Protective box assembly; 201. Protective box body; 202. Buckle; 203. Waterproof and breathable membrane; 204. Heat dissipation hole; 205. Fixing hole; 206. Door panel; 207. Buckle; 208. Connecting block; 209. Connecting groove; 210. Rotating hole; 211. Rotating shaft; 3. Fixing assembly; 301. Fixing tube; 302. Thread; 303. Sliding hole; 304. Sliding block; 305. Fixing cylinder; 306. Extrusion block; 307. Rubber plate; 308. Limiting groove; 309. Placement groove; 310. Rubber ring; 311. Extrusion plate. Detailed Implementation

[0019] 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.

[0020] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0023] like Figures 1-4As shown, the easy-to-connect power distribution automation station terminal includes a base plate 1, a protective box assembly 2, which is set on the top of the base plate 1 and is used to protect electronic components, and a fixing assembly 3, which is set on one side of the outer wall of the protective box assembly 2 and is used to fix the cables and prevent rainwater from entering the cabinet, which could cause short circuits or leakage accidents.

[0024] like Figure 2 As shown, in order to protect the electronic components, a protective box assembly 2 is installed at the top of the base plate 1. Specifically, the protective box assembly 2 includes a protective box body 201, which is installed at the top of the base plate 1. A waterproof and breathable membrane 203 is fixedly connected to one inner wall of the protective box body 201. A heat dissipation hole 204 is opened at a 45-degree angle on one inner wall of the protective box body 201. A buckle 202 is provided on one outer wall of the protective box body 201. The buckle 202 is pressed and connected to a buckle head 207. The buckle head 207 is located on one outer wall of the door panel 206, and the other outer wall of the door panel 206 is also provided. A connecting groove 209 is provided, and a connecting block 208 is rotatably connected to the inner wall of the connecting groove 209. One outer wall of the connecting block 208 is fixedly connected to one outer wall of the protective box body 201. A rotating hole 210 is provided at the top of the inner wall of the connecting groove 209 and the top of the connecting block 208. A rotating shaft 211 is rotatably connected to the inner wall of the rotating hole 210. A fixing hole 205 is provided on one outer wall of the protective box body 201. It should also be noted that, in this embodiment of the application, when it is necessary to open the protective box body 201 to connect the power distribution cable, the buckle 202 provided on one outer wall of the protective box body 201 is pressed to disengage it. A buckle 207 is provided on one side of the outer wall of the door panel 206. Then, pulling the door handle on one side of the outer wall of the door panel 206 causes the door panel 206 to rotate through the rotating hole 210 at the top of the inner wall of the connecting groove 209 on one side of the outer wall, along the rotating shaft 211 fixedly connected within the rotating hole 210 at the top of the connecting block 208 on one side of the outer wall of the protective box body 201. This allows the door panel 206 to be opened for cable connection, insertion, inspection, or maintenance. It should also be noted that, in this embodiment, the heat dissipation holes 204 on one side of the inner wall of the protective box body 201 are arranged in a 4-shaped pattern. The 45-degree angled design, compared to the traditional straight hole design, reduces air resistance in the heat dissipation hole 204, allowing for smoother airflow and more effective heat dissipation to the surrounding environment, thereby improving overall heat dissipation performance. Furthermore, a waterproof and breathable membrane 203 is fixedly connected to the surface of the heat dissipation hole 204 on the inner wall of the protective box body 201. The waterproof and breathable membrane 203 further prevents moisture from entering the interior of the protective box body 201 while still allowing air circulation, enabling the heat dissipation hole 204 to function properly, promoting air convection inside and outside the protective box, and reducing the internal temperature.

[0025] like Figures 3-4As shown, in order to secure the cables and prevent rainwater from entering the cabinet and causing short circuits or leakage accidents, a fixing component 3 is installed on one side of the outer wall of the protective box component 2. Specifically, the fixing component 3 includes a fixing tube 301, which is installed on the inner wall of the fixing hole 205. One end of the fixing tube 301 is fixedly connected to a compression block 306. A rubber plate 307 is fixedly connected to one side of the outer wall of the compression block 306. The outer wall of the fixing tube 301 is provided with a thread 302, and a fixing cylinder 305 is rotatably connected to the thread 302. The fixing cylinder 305 contains... A limiting groove 308 is provided in the wall, and a placement groove 309 is provided in the inner wall of the fixed tube 301. A rubber ring 310 is fixedly connected to the inner wall of the placement groove 309. An extrusion plate 311 is extruded and connected to one side of the outer wall of the rubber ring 310. The extrusion plate 311 is slidably connected to the placement groove 309. A sliding hole 303 is provided in one side of the outer wall of the placement groove 309. A sliding block 304 is slidably connected to the inner wall of the sliding hole 303. One side of the outer wall of the sliding block 304 is fixedly connected to one side of the outer wall of the extrusion plate 311. The sliding block 304 is slidably connected to the limiting groove 308. It should be clearly understood that, in this embodiment, the fixing tube 301 is fixedly connected to the inner wall of the fixing hole 205 opened on one side of the outer wall of the protective box body 201. When it is necessary to connect the cable to the electronic components inside the protective box body 201, the cable is passed through the fixing cylinder 305 and the center hole of the fixing tube 301 in sequence, and connected to the electronic components inside the protective box body 201. Then, the fixing cylinder 305 is pushed along the cable to the outer wall of the fixing tube 301. The fixing cylinder 305 is rotated so that it moves along the thread 302 provided on the outer wall of the fixing tube 301. The inner wall of the fixing cylinder 305 is provided with a threaded groove. When the fixing cylinder 305 rotates and moves on the outer wall of the fixing tube 301, the inner wall at a 30-degree angle at its other end will squeeze the compression block 306 fixedly connected to the other end of the fixing tube 301, thereby causing the compression block 306 to move inward and causing the rubber plate 307 fixedly connected to the outer wall of one side of the compression block 306 to squeeze and fix the cable. When the fixed cylinder 305 rotates and moves on the outer wall of the fixed tube 301, the sliding block 304, which is slidably connected to the inner wall of the sliding holes 303 opened around the outer wall of the fixed tube 301, will slide into the limiting groove 308 on the inner wall of the fixed cylinder 305. The inner wall of the limiting groove 308 on one side is inclined at 35 degrees. This design facilitates the smooth sliding of the sliding block 304 into the limiting groove 308. At the same time, when the fixed cylinder 305 moves on the outer wall of the fixed tube 301, the inner wall of the limiting groove 308 on the other side will be in contact with the outer wall of the sliding block 304 on one side. The walls fit together, which will lock the sliding block 304 when it moves, causing the sliding block 304 to slide in the sliding hole 303. This will cause the extrusion plate 311 fixedly connected to the other end of the sliding block 304 to extrude the rubber ring 310 fixedly connected in the placement groove 309 opened in the inner wall of the fixed tube 301. This will cause the rubber ring 310 to deform, thereby extruding the cable in the fixed tube 301, achieving a sealing effect and preventing rainwater from splashing or flowing back into the cabinet during heavy rain or strong winds.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An easy-to-connect power distribution automation station terminal, including a base plate (1), characterized in that: The protective box assembly (2) is set on the top of the base plate (1). The protective box assembly (2) is used to protect electronic components. The fixing assembly (3) is set on the outer wall of one side of the protective box assembly (2). The fixing assembly (3) is used to fix the cable and prevent rainwater from entering the cabinet, which may cause short circuits or leakage accidents. The fixing component (3) includes a fixing tube (301), one end of which is fixedly connected to an extrusion block (306), and a rubber plate (307) is fixedly connected to the outer wall of one side of the extrusion block (306). The outer wall of the fixing tube (301) is provided with a thread (302), and the thread (302) is rotatably connected to a fixing cylinder (305).

2. The easy-to-connect power distribution automation station terminal according to claim 1, characterized in that: The protective box assembly (2) includes a protective box body (201), which is set at the top of the base plate (1). A waterproof and breathable membrane (203) is fixedly connected to one side of the inner wall of the protective box body (201). A heat dissipation hole (204) is opened at a 45-degree angle on one side of the inner wall of the protective box body (201). A buckle (202) is provided on one side of the outer wall of the protective box body (201). The buckle (202) is pressed and connected to a buckle head (207). The buckle head (207) is set on one side of the outer wall of the door panel (206).

3. The easy-to-connect power distribution automation station terminal according to claim 2, characterized in that: A connecting groove (209) is provided on the outer wall of the other side of the door panel (206). A connecting block (208) is rotatably connected to the inner wall of the connecting groove (209). The outer wall of one side of the connecting block (208) is fixedly connected to the outer wall of one side of the protective box body (201). A rotating hole (210) is provided at the top of the inner wall of the connecting groove (209) and the top of the connecting block (208). A rotating shaft (211) is rotatably connected to the inner wall of the rotating hole (210). A fixing hole (205) is provided on the outer wall of one side of the protective box body (201).

4. The easy-to-connect power distribution automation station terminal according to claim 1, characterized in that: A limiting groove (308) is provided on the inner wall of the fixed cylinder (305), and a placement groove (309) is provided on the inner wall of the fixed tube (301). A rubber ring (310) is fixedly connected to the inner wall of the placement groove (309), and an extrusion plate (311) is extruded and connected to the outer wall of one side of the rubber ring (310). The extrusion plate (311) is slidably connected to the placement groove (309).

5. The easy-to-connect power distribution automation station terminal according to claim 4, characterized in that: A sliding hole (303) is provided on one side of the outer wall of the placement groove (309). A sliding block (304) is slidably connected to the inner wall of the sliding hole (303). One side of the outer wall of the sliding block (304) is fixedly connected to one side of the outer wall of the extrusion plate (311). The sliding block (304) is slidably connected to the limiting groove (308).

Citation Information

Patent Citations

  • Distribution automation station terminal easy to wire

    CN213484213U