Outdoor low-voltage switch box

By employing a sealing ring, protective cover, and high-performance insulating plastic material in the switch box design, the waterproofing issue for outdoor use is solved, achieving highly efficient waterproofing performance and electrical safety, making it suitable for all-weather outdoor use.

CN224204060UActive Publication Date: 2026-05-05STATE GRID FUJIAN ELECTRIC POWER CO LTD SHISHI POWER SUPPLY CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
STATE GRID FUJIAN ELECTRIC POWER CO LTD SHISHI POWER SUPPLY CO
Filing Date
2025-05-06
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing switch boxes have poor waterproof performance when used outdoors, and are easily damaged by rain and salt spray.

Method used

An outdoor low-voltage switch box was designed, featuring a sealed structure and waterproof design, including a sealing ring between the box body and the cover, a waterproof structure between the protective cover and the operating window, and high-performance insulating plastic materials to ensure sealing and waterproof performance.

Benefits of technology

The waterproof performance of the switch box has been improved, meeting the IP34D standard. It is suitable for all-weather outdoor use, protecting the internal electrical components from environmental damage, and has high-strength electrical insulation performance and weather resistance.

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Abstract

The utility model relates to an outdoor low-voltage switch box which comprises a box body, a box cover hinged with one side of the box body is buckled on a front port of the box body, a sealing structure is arranged between the box body and the box cover, and a guide rail used for installing a switch is arranged on a rear side plate in the box body. A plurality of operation windows used for exposing switch operation handles are transversely formed in the front face of the box cover, embedded protective covers capable of sliding upwards are arranged on the operation windows, and waterproof structures are arranged between the protective covers and the operation windows. The low-voltage switch box is suitable for outdoor use, and solves the problem that the existing low-voltage switch box is not waterproof.
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Description

Technical Field

[0001] This utility model relates to an outdoor low-voltage switch box. Background Technology

[0002] A switch box is a device for installing electrical switches. It is usually embedded inside the wall or fixed to the wall surface. It is used to support electrical components such as switches and sockets, and to realize circuit connection and protection functions. Its core function is to provide physical support and insulation protection for electrical equipment, while facilitating later maintenance and repair.

[0003] Existing switch boxes are typically installed indoors. Due to their poor or nonexistent waterproofing, the electrical components inside are easily damaged by rain, salt spray, and other environmental factors when used outdoors. Therefore, a low-voltage switch box suitable for outdoor use is needed. Utility Model Content

[0004] The purpose of this invention is to provide an outdoor low-voltage switch box that is suitable for outdoor use and solves the problem that existing low-voltage switch boxes are not waterproof.

[0005] The technical solution of this utility model is as follows: an outdoor low-voltage switch box, including a box body, a cover hinged to one side of the box body is fastened to the front port of the box body, a sealing structure is provided between the box body and the cover, a guide rail for installing a switch is provided on the rear side plate inside the box body, and several operating windows for exposing the switch operating handle are opened horizontally on the front of the cover, and an embedded protective cover plate that can slide upward is provided on the operating window, and a waterproof structure is provided between the protective cover plate and the operating window.

[0006] Furthermore, the front port of the box body has an outwardly turned side flange that protrudes from the side of the box body, the outer side of the box cover completely covers the side flange of the box body, and the inner side of the box cover is provided with a groove, in which a sealing ring is provided that mates with the front end face of the side flange.

[0007] Furthermore, the flange protrudes 0.7~1.5cm from the side of the box body, the area of ​​the lid is larger than the front port of the box body, the edge of the lid has a rear protruding edge that extends backward to catch the outer side of the side flange of the box body, and one end of the lid is hinged to the box body via a hinge.

[0008] Furthermore, mounting holes are provided at the four corners of the rear side panel inside the box, and the guide rail is horizontally fixed to the rear side panel.

[0009] Furthermore, knockout holes are provided on the left, right, and lower side panels of the box.

[0010] Furthermore, the cover is provided with a number of rectangular recesses at horizontal intervals, the operation window is provided in the rectangular recesses, and the top surface of the rectangular recesses is provided with an opening for the protective cover to move upward.

[0011] Furthermore, the waterproof structure includes a front flange that is set at the edge of the operating window and protrudes forward in a U-shape, and the protective cover has rear convex edges on both sides that are fastened between the front flange and the side wall of the rectangular recess. The lower end of the protective cover has a lower flange that extends downward, and both sides of the protective cover have L-shaped grooves that slide and engage with the two sides of the operating window.

[0012] Furthermore, the rear side of the box cover is connected to a cover located above the window. The cover and the box cover are matched to form a storage chamber for the protective cover plate to move upward. The side of the cover facing the box cover is provided with an inclined surface that provides sliding damping for the protective cover plate to move upward.

[0013] Furthermore, the lower part of the protective cover is provided with a rearwardly recessed operating recess.

[0014] Furthermore, the lid and body are made of anti-aging insulating plastic, and a door lock that matches the body is provided on the other side of the lid.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This low-voltage switch box is specifically designed for installing air switches. A groove is designed on the inner side of the cover, within which a rubber sealing ring is installed, preventing rainwater from entering the box. Furthermore, the rear protruding edge of the cover secures to the outer side flange of the box body, further preventing rainwater from entering and improving the switch box's waterproof performance, thus solving the problem of existing low-voltage switch boxes not being waterproof. Moreover, this low-voltage switch box meets the IP34D protection standard, fully guaranteeing all-weather outdoor use requirements.

[0017] 2. This low-voltage switch box features an operating window in the center of the cover, with a protective cover that is embedded and has a waterproof structure, thus improving its rainproof performance.

[0018] 3. This low-voltage switch box uses high-performance insulating plastic, features a grounding-free design, and possesses high-strength electrical insulation performance. Furthermore, the outer shell is made of composite sun-resistant and anti-aging engineering plastic, exhibiting excellent weather resistance and flame-retardant properties, ensuring structural stability and electrical safety in long-term outdoor environments.

[0019] 4. This low-voltage switch box can serve as an external expansion device for the meter box, providing a safe and reliable outdoor installation space for adding single-phase or three-phase switches after the meter; at the same time, it helps to isolate and protect the critical electrical components inside the box from environmental damage (ultraviolet rays, rain, salt spray, etc.). Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 For the present utility model Figure 1 CC section view;

[0022] Figure 3 This is a right view of the box body of this utility model;

[0023] Figure 4 This is a bottom view of the box body of this utility model;

[0024] Figure 5 This is a front view of the box lid of this utility model;

[0025] Figure 6 This is a rear view of the box lid of this utility model;

[0026] Figure 7 For the present utility model Figure 5 AA section view;

[0027] Figure 8 For the present utility model Figure 7 A schematic diagram of the structure behind the concealed protective cover;

[0028] Figure 9 For the present utility model Figure 6 BB section view;

[0029] In the diagram: 10-Box body 11-Guide rail 12-Side flange 13-Hinge 14-Mounting hole 15-Knockout hole 20-Box cover 21-Operating window 22-Groove 23-Rectangular recess 24-Opening 25-Front flange 26-Rear flange 30-Protective cover 31-Rear flange 32-Lower flange 33-L-shaped groove 34-Operating recess 40-Cover 41-Storage chamber 42-Sloping surface 50-Door lock. Detailed Implementation

[0030] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0031] refer to Figures 1 to 9

[0032] An outdoor low-voltage switch box includes a box body 10. A cover 20, hinged to one side of the box body, is fastened to the front end (front) of the box body. A sealing structure is provided between the box body and the cover. A guide rail 11 for installing an air switch is fixed to the rear side plate inside the box body via pins. Several operating windows 21 are horizontally opened on the front (front) of the cover to expose the switch operating handle. An embedded protective cover 30 is provided on the operating window, which naturally hangs down to cover the operating window. When operating, the cover is pushed up to expose the switch operating handle. A waterproof structure is provided between the protective cover and the operating window to improve rainproof performance.

[0033] In this embodiment, the sealing structure specifically comprises: a side flange 12 protruding outwards from the front end of the box body, the flange protruding 0.7~1.5cm from the side of the box body, specifically, 1cm. The outer edge of the box lid completely covers the side flange of the box body, and a groove 22 is provided on the inner side of the box lid. A sealing ring, which is a rubber sealing ring, is provided in the groove and mates with the front end face of the side flange. The sealing ring helps prevent rainwater from entering the box body after the box lid is closed.

[0034] In this embodiment, the area of ​​the cover is larger than the front port of the box body, and the edge of the cover has a rear protruding edge 26 that extends rearward and engages with the outer side flange of the box body. By increasing the area of ​​the cover and using the rear protruding edge to engage with the outer side flange, it helps to prevent rainwater from entering the box body, thereby further improving the rainproof performance of the switch box.

[0035] In this embodiment, one end of the lid is hinged to the box body via a hinge 13, so that the lid can be flipped open 180°.

[0036] In this embodiment, mounting holes 14 are provided at the four corners of the rear panel inside the box for fixing to any wall. The guide rail is horizontally fixed to the rear panel, and the guide rail is a slotted guide rail sheet fixed to the rear panel by screws or other structures.

[0037] In this embodiment, the depth of the housing meets the installation height of the air switch, and the width can be determined according to the number of air switches to be installed.

[0038] In this embodiment, knockout holes 15 are provided on the left, right, and lower side panels of the housing. The knockout holes are designed so that any object inside appears to fall but doesn't, requiring only a tap to dislodge it, thus creating a through hole. Holes can be made at the corresponding locations to allow wires to enter or exit from a specific side. Unused knockout holes can be fitted with sealing caps to improve rainproof performance.

[0039] In this embodiment, the box cover is provided with a plurality of rectangular recesses 23 at horizontal intervals, the operation window is provided in the rectangular recesses, and the top surface of the rectangular recesses is provided with an opening 24 for the protective cover to slide upward and extend into the box cover so that the operation window is exposed.

[0040] In this embodiment, the waterproof structure includes a front flange 25 that is U-shaped and protrudes forward from the edge of the operating window. The protective cover has rear protruding edges 31 on both sides that engage with the front flange and the sidewall of the rectangular recess. The lower end of the protective cover has a downwardly extending lower flange 32. Both sides of the protective cover have L-shaped grooves 33 that slide against the side edges (including the front edge) of the operating window. The cooperation of the front flange of the operating window, the rear protruding edges of the protective cover, the lower flange of the protective cover, and the L-shaped grooves prevents rainwater from entering the box through the operating window, thus improving the rainproof function.

[0041] In this embodiment, a cover 40 located above the window is connected to the rear side of the box cover. The cover and the box cover together form a storage chamber 41 for the protective cover to move upward, providing space for the protective cover to move upward. An inclined surface 42 is provided on the side of the cover facing the box cover, providing sliding damping for the protective cover after it moves upward a certain distance, helping to prevent it from sliding directly down. After pushing the protective cover upward a certain distance, some upward force is required to hold the protective cover in place by the inclined surface, facilitating the operation of the switch handle. When closing the operating window, the protective cover is pushed downward to disengage from the inclined surface and naturally fall to cover the operating window.

[0042] In this embodiment, the lower part of the protective cover is provided with a rearwardly recessed operating recess 34 so that the protective cover can be driven upward through the operating recess.

[0043] In this embodiment, the lid and body are made of high-performance insulating plastic with anti-aging properties, such as composite sun-resistant anti-aging engineering plastic (PC+ABS flame-retardant material and SMC fiberglass). It can not only be designed without grounding and has high-strength electrical insulation performance, but also has excellent weather resistance and flame-retardant properties, ensuring structural stability and electrical safety in long-term outdoor environments.

[0044] In this embodiment, a door lock 50 that cooperates with the box body is provided on the other side of the box cover. The door lock is a flat electrical cabinet lock.

[0045] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0046] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0047] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0048] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. An outdoor low-voltage switch box, comprising a box body, characterized in that, The front end of the box is fitted with a cover that is hinged to one side of the box. A sealing structure is provided between the box and the cover. A guide rail for installing the switch is provided on the rear side plate inside the box. Several operation windows for exposing the switch operation handle are opened horizontally on the front of the cover. An embedded protective cover plate that can slide upward is provided on the operation window. A waterproof structure is provided between the protective cover plate and the operation window.

2. The outdoor low-voltage switch box according to claim 1, characterized in that, The front port of the box body has an outwardly turned side flange that protrudes from the side of the box body. The outer side of the box cover completely covers the side flange of the box body. The inner side of the box cover is provided with a groove, and a sealing ring that mates with the front end face of the side flange is provided in the groove.

3. An outdoor low-voltage switch box according to claim 2, characterized in that, The side flange protrudes 0.7~1.5cm from the side of the box body. The area of ​​the box cover is larger than the front port of the box body. The edge of the box cover has a rear protruding edge that extends backward to catch the outer side of the side flange of the box body. One end of the box cover is hinged to the box body via a hinge.

4. An outdoor low-voltage switch box according to claim 1, characterized in that, Mounting holes are provided at the four corners of the rear side panel inside the box, and the guide rail is horizontally fixed to the rear side panel.

5. An outdoor low-voltage switch box according to claim 1, 2, 3 or 4, characterized in that, Knockout holes are provided on the left, right, and bottom panels of the box.

6. An outdoor low-voltage switch box according to claim 1, 2, 3 or 4, characterized in that, The box cover has several rectangular recesses spaced laterally, the operation window is located in the rectangular recesses, and the top surface of the rectangular recesses has an opening for the protective cover to move upward.

7. An outdoor low-voltage switch box according to claim 6, characterized in that, The waterproof structure includes a front flange that is set at the edge of the operating window and protrudes forward in a U-shape. The protective cover has rear convex edges on both sides that are fastened between the front flange and the side wall of the rectangular recess. The lower end of the protective cover has a lower flange that extends downward. Both sides of the protective cover have L-shaped grooves that slide and engage with the two sides of the operating window.

8. An outdoor low-voltage switch box according to claim 6, characterized in that, The rear side of the box cover is connected to a cover located above the window. The cover and the box cover are matched to form a storage chamber for the protective cover plate to move upward. The side of the cover facing the box cover is provided with an inclined surface that provides sliding damping for the protective cover plate to move upward.

9. An outdoor low-voltage switch box according to claim 1, 2, 3, 4, 7 or 8, characterized in that, The lower part of the protective cover is provided with a rearwardly recessed operating recess.

10. An outdoor low-voltage switch box according to claim 1, 2, 3, 4, 7 or 8, characterized in that, The lid and body are made of anti-aging insulating plastic, and a door lock that matches the body is provided on the other side of the lid.