Maintenance protection structure of electric control cabinet

By installing insulating protective panels inside the electrical control cabinet, the risk of injury to maintenance personnel from exposed busbars was eliminated, creating a safe maintenance environment.

CN224006374UActive Publication Date: 2026-03-17CHONGQING WANSHENG WATER SUPPLY ASSET CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Exposed busbars pose a risk of injury to workers during electrical control cabinet maintenance.

Method used

An insulating protective plate is installed inside the electrical control cabinet. The protective plate is installed vertically in front of the exposed busbar, with both ends extending to the inner wall of the electrical control cabinet. The support studs are connected to the cabinet body, the top plate is connected to the protective plate, and the support shaft is rotatably connected to the cabinet body. The support column and handle are used to adjust the position of the protective plate.

Benefits of technology

It effectively protects maintenance personnel, prevents exposed busbars from being touched, and reduces maintenance risks.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224006374U_ABST
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Abstract

The utility model belongs to the technical field of electric control cabinets, and specifically discloses an electric control cabinet maintenance protection structure comprising a protection plate which is made of an insulating material, is vertically installed, and is installed at the front side of an exposed bus in an electric control cabinet, and the upper and lower ends of the protection plate are located at the upper and lower sides of the bus. The two ends of the protection plate extend to the two sides of the inner wall of the electric control cabinet, the protection plate is made of transparent acrylic materials, the two ends of the protection plate are connected with supporting studs through nuts, the supporting studs are connected with the interior of the electric control cabinet, a top plate is arranged on the upper side of the back face of the protection plate, and the top plate is connected with the protection plate through screws. The top plate and the protection plate are made of the same material. Based on the arrangement of the protection plate in the scheme, the protection plate can be installed at an exposed bus position or other positions with low maintenance frequency and high risk, in the actual maintenance process, maintenance personnel are not liable to touch the exposed bus, and the protection effect on the maintenance personnel is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet technology, specifically to an electrical control cabinet maintenance and protection structure. Background Technology

[0002] An electrical control cabinet is a control cabinet (box) in which switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. Its layout should meet the requirements of normal operation of the power system, facilitate maintenance, and not endanger the safety of personnel and surrounding equipment.

[0003] like Figure 4 , 5 The diagram shows a conventional electrical control cabinet 1 (this is a schematic diagram; even if it differs from existing electrical control cabinets, it will have almost no impact on the application of this solution). In electrical control cabinet 1, side support bars 2 are usually set longitudinally on both sides, and a back plate 3 is set at the front between the side support bars 2. Various electrical components (such as busbar 4, switch 5, leakage protection device, etc.) are usually installed on the back plate 3. In actual maintenance, busbar 4 is the main power supply line. When connecting power or performing maintenance, the maintenance frequency of components such as switch 5 and leakage protection device is relatively low. However, busbar 4 is usually exposed. Therefore, when maintaining components such as switch 5 and leakage protection device, busbar 4 poses a risk of injury to maintenance personnel. Utility Model Content

[0004] The purpose of this utility model is to provide a protective structure for the maintenance of electrical control cabinets, so as to solve the problem of the risk of injury to workers caused by exposed busbars mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrical control cabinet maintenance and protection structure, characterized in that it includes a protective plate, the protective plate being made of insulating material and installed vertically;

[0006] The protective plate is installed on the front side of the exposed busbar inside the electrical control cabinet, and the upper and lower ends of the protective plate are located on the upper and lower sides of the busbar. The two ends of the protective plate extend to both sides of the inner wall of the electrical control cabinet.

[0007] Preferably, the protective panel is made of transparent acrylic material.

[0008] Preferably, both ends of the protective plate are connected to support studs by nuts, and the support studs are connected to the interior of the electrical control cabinet.

[0009] Preferably, a top plate is provided on the upper side of the back of the protective plate, and the top plate is connected to the protective plate by screws. The top plate and the protective plate are made of the same material, and the top plate is located on the upper side of the busbar.

[0010] Preferably, the top plate has a through groove for threading wires.

[0011] Preferably, the left and right sidewalls of the protective plate are each provided with a support shaft at a relative position, and the protective plate is rotatably connected to the electrical control cabinet through the support shaft.

[0012] Preferably, a support column is provided on the lower back side of the protective plate, and a handle is provided on the front wall of the protective plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Based on the installation of the protective plate in this solution, the protective plate can be installed at the location of the exposed busbar, or other locations with low maintenance frequency but high risk. During actual maintenance, maintenance personnel are less likely to touch the exposed busbar, thus protecting them. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the protective plate and supporting studs of this utility model;

[0016] Figure 2 For the present utility model in Figure 1 Based on the above, add a structural diagram of the top plate;

[0017] Figure 3 This is a schematic diagram of the structure of the protective plate, support shaft, support column, and handle of this utility model;

[0018] Figure 4 This is a structural diagram of an existing electrical control cabinet;

[0019] Figure 5 for Figure 4 A structural diagram showing the installation of the protective plate.

[0020] In the diagram: 1. Electrical control cabinet; 2. Side support bar; 3. Back panel; 4. Busbar; 5. Switch; 6. Protective plate; 7. Support stud; 8. Top plate; 9. Screw; 10. Cable tray; 11. Support shaft; 12. Support column; 13. Handle. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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.

[0023] Example 1:

[0024] Please see Figure 1-5 This utility model provides a technical solution: an electrical control cabinet maintenance protection structure, including a protective plate 6. The protective plate 6 is made of insulating material and is installed vertically. The protective plate 6 is installed on the front side of the exposed busbar 4 inside the electrical control cabinet 1, and the upper and lower ends of the protective plate 6 are located on the upper and lower sides of the busbar 4. The two ends of the protective plate 6 extend to both sides of the inner wall of the electrical control cabinet 1.

[0025] Analysis of the above content: such as Figure 4 , 5 As shown, Figure 4 This refers to the structural form of the electrical control cabinet 1 without the protective plate 6 installed. Figure 5 For the electrical control cabinet 1 after installing the protective plate 6, the protective plate 6 is placed in front of the busbar 4. This way, when maintenance personnel are inspecting other areas inside the electrical control cabinet 1, the protective plate 6 can protect them and prevent their hands from touching the busbar 4. The protective plate 6 in this design can also be installed in other locations with low maintenance frequency and high risk. (Appendix) Figure 4 , 5 The electrical control cabinet 1 in this solution is a conventional type. The protective plate 6 in this solution can also be applied to other types of electrical control cabinets that have this technical defect.

[0026] Example 2:

[0027] Please see Figure 1-5 Based on Embodiment 1, this utility model provides a technical solution: the protective plate 6 is made of transparent acrylic material.

[0028] Analysis of the above content: The transparent acrylic material does not affect the observation of the internal busbar 4 from the outside.

[0029] Example 3:

[0030] Please see Figure 1-5 Based on Embodiment 1, this utility model provides a technical solution: both ends of the protective plate 6 are connected to support studs 7 by nuts, and the support studs 7 are connected to the interior of the electrical control cabinet 1.

[0031] Analysis of the above content: The rear end of the support stud 7 is pre-threaded to the side support bar 2 or the back plate 3. The support stud 7 is made of insulating material and does not contact the busbar 4.

[0032] Example 4:

[0033] Please see Figure 1-5 This utility model provides a technical solution based on Embodiment 3: a top plate 8 is provided on the upper side of the back of the protective plate 6, the top plate 8 is connected to the protective plate 6 by screws 9, the top plate 8 and the protective plate 6 are made of the same material, and the top plate 8 is located on the upper side of the busbar 4. A wire groove 10 for threading is provided on the top plate 8.

[0034] Analysis of the above: The top plate 8 can shield the busbar 4 from above (the busbar 4 is a metal plate, connected to the incoming line on the upper side, and has a lead-out connection port on the lower side). The cable tray 10 is used for the incoming line routing.

[0035] Example 4:

[0036] Please see Figure 1-5 This utility model provides a technical solution based on Embodiment 1: Support shafts 11 are provided at opposite positions on the left and right sidewalls of the protective plate 6, and the protective plate 6 is rotatably connected to the electrical control cabinet 1 via the support shafts 11. A support column 12 is provided on the lower back side of the protective plate 6, and a handle 13 is provided on the front wall of the protective plate 6.

[0037] Analysis of the above content: In this scheme, the protective plate 6 can rotate relative to the electrical control cabinet 1 via the support shaft 11. The support shaft 11 is connected to the inner walls on both sides of the electrical control cabinet 1. When the protective plate 6 is lowered, the support column 12 supports the back plate 3 corresponding to the busbar 4. In this way, the protective plate 6 is prevented from swinging backward and contacting the busbar 4. When the busbar 4 needs to be inspected, the protective plate 6 can be flipped up by the handle 13 to expose the busbar 4.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0039] 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 claims and their equivalents.

Claims

1. An electric control cabinet maintenance protection structure, characterized in that, Including the guard board (6), the guard board (6) is insulating material, and the guard board (6) is vertically installed; Wherein, the guard board (6) is installed in the front side of the exposed busbar (4) in the electric control cabinet (1), and the upper and lower ends of the guard board (6) are located on the upper and lower sides of the busbar (4), the both ends of the guard board (6) extend to both sides of the inner wall of the electric control cabinet (1).

2. The electrical control cabinet access protection structure of claim 1, wherein: The guard board (6) is transparent acrylic material.

3. The electrical control cabinet access protection structure of claim 1, wherein: Both ends of the guard board (6) are connected with support studs (7) through nuts, and the support studs (7) are connected with the inside of the electric control cabinet (1).

4. The electrical control cabinet access protection structure of claim 3, wherein: The back upper side of the guard board (6) is provided with a top plate (8), the top plate (8) and the guard board (6) are connected through screws (9), the top plate (8) and the guard board (6) are of the same material, and the top plate (8) is located on the upper side of the busbar (4).

5. The electrical control cabinet access protection structure of claim 4, wherein: A wire passing groove (10) is formed in the top plate (8) for threading.

6. The electrical control cabinet access protection structure of claim 1, wherein: Support shafts (11) are arranged at the opposite positions of the left and right side walls of the guard board (6), and the guard board (6) is rotatably connected with the electric control cabinet (1) through the support shafts (11).

7. The electrical control cabinet access protection structure of claim 6, wherein: A support column (12) is arranged on the lower side of the back of the guard board (6), and a handle (13) is arranged on the front wall of the guard board (6).