Cable branch box

Abstract

The utility model relates to a cable branch box. A traditional cable branch box is usually made of metal materials and has the problems of being large in weight, prone to corrosion, inconvenient to install and the like. The power distribution box comprises an upper box body, a base, a top cover and a door, and is characterized in that a molded case circuit breaker is arranged in the box body, a wire outlet end of the molded case circuit breaker is respectively connected with an A-phase bus, a B-phase bus and a C-phase bus through a three-phase copper bar, the A-phase bus, the B-phase bus and the C-phase bus are respectively provided with a bar-shaped switch, and the box body is made of SMC (Sheet Molding Compound). The weight of the cable branch box can be effectively reduced, and the service life of the cable branch box is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of power equipment, and in particular to a cable branch box. Background Technology

[0002] In power systems, cable distribution boxes are crucial devices for distributing and controlling electrical energy. Traditional cable distribution boxes are typically made of metal, which presents problems such as heavy weight, susceptibility to corrosion, and inconvenient installation. Furthermore, traditional cable distribution boxes often use ordinary switches at the outgoing lines, which are complex to operate and have low reliability, failing to meet the performance and ease-of-use requirements of modern power systems. Utility Model Content

[0003] The purpose of this invention is to provide a cable branch box that can effectively reduce the weight of the cable branch box while improving its service life.

[0004] This utility model adopts the following technical solution: a cable branch box, including an upper box body, a base, a top cover and a door, characterized in that a molded case circuit breaker is installed inside the box body, and the output terminals of the molded case circuit breaker are connected to the A-phase busbar, B-phase busbar and C-phase busbar respectively through three-phase copper busbars, and a strip switch is installed on the A-phase busbar, B-phase busbar and C-phase busbar respectively, and the material of the box body is SMC.

[0005] Preferably, the upper box is provided with louvers on both sides for ventilation and heat dissipation, and the inner side of the louvers 10 is provided with a detachable insect-proof net.

[0006] Preferably, the molded case circuit breaker is installed on the left side of the upper enclosure, the three-phase copper busbar is located at the lower part of the molded case circuit breaker, and the A-phase busbar, B-phase busbar and C-phase busbar are arranged horizontally from top to bottom.

[0007] Preferably, the louvers are positioned below the three-phase copper busbar, and the two louvers are symmetrically arranged.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. Lightweight and corrosion resistant: The enclosure is made of SMC material, which has the advantages of being lightweight, high-strength, and corrosion resistant. It can effectively reduce the weight of the cable branch box and improve its service life.

[0010] 2. Good heat dissipation performance: The cabinet is equipped with louvers and insect screens on both sides, which can effectively promote air circulation, improve heat dissipation, and prevent insects from entering.

[0011] 3. Improved line protection: The busbar connection and switch settings have been optimized. Each outgoing line has three strip switches, which are connected to the A-phase busbar, B-phase busbar and C-phase busbar respectively. This can effectively protect the cables and equipment in the line and prevent overload and short circuit faults. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the omitted door of this utility model.

[0014] In the diagram: 1-Upper enclosure, 2-Top cover, 3-Base, 4-Door, 5-Molded case circuit breaker, 6-Bar switch, 7-A-phase busbar, 8-B-phase busbar, 9-C-phase busbar, 10-Louvre, 11-Insect screen, 12-Three-phase copper busbar. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] like Figures 1-2 The cable distribution box shown includes a base 3, an upper box 1 mounted on the base, a double door 4 on the front of the upper box, and a top cover 2 on the top of the box. A molded case circuit breaker 5 is installed inside the box. The outgoing terminals of the molded case circuit breaker 5 are connected to the A-phase busbar 7, B-phase busbar 8, and C-phase busbar 9 respectively via three-phase copper busbars 12. Each of the A-phase busbar 7, B-phase busbar 8, and C-phase busbar 9 is equipped with a strip switch. The use of strip switches at the outgoing terminals simplifies the operation process and improves the reliability and safety of the equipment.

[0017] Specifically, the enclosure is made of SMC. SMC is a glass fiber reinforced polyester material, which has advantages such as light weight, corrosion resistance, and easy installation. It can effectively reduce the weight of the cable branch box and improve its service life.

[0018] Specifically, louvers 10 for ventilation and heat dissipation are provided on both sides of the upper housing 1, and a removable insect screen 11 is provided on the inner side of the louvers 10. The louvers and insect screens on both sides of the housing can effectively promote air circulation, improve heat dissipation, and prevent insects from entering.

[0019] Specifically, the molded case circuit breaker 5 is installed on the left side inside the upper housing 1, and the three-phase copper busbar 12 is located below the molded case circuit breaker 5. The A-phase busbar 7, B-phase busbar 8, and C-phase busbar 9 are arranged horizontally from top to bottom. The busbar connection and switch settings have been optimized. Each outgoing line has three strip switches, which are connected to the A-phase busbar, B-phase busbar, and C-phase busbar respectively, which can effectively protect cables and equipment in the line and prevent overload and short circuit faults.

[0020] Specifically, the louver 10 is positioned below the three-phase copper busbar, and the two louvers are symmetrically arranged.

[0021] The housing of this invention is made of SMC (glass fiber reinforced polyester), which has advantages such as light weight, corrosion resistance, and easy installation. Meanwhile, a strip switch is used at the cable outlet, simplifying the operation process and improving the reliability and safety of the equipment. It solves the problems of metal housing corrosion, leakage, and roughness, effectively preventing electric shock from contact and lightning strikes, extending its service life to up to 30 years.

[0022] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A cable distribution box, comprising an upper box body (1), a base (3), a top cover (2), and a door (4), characterized in that... The box is equipped with a molded case circuit breaker (5). The output terminals of the molded case circuit breaker (5) are connected to the A-phase busbar (7), B-phase busbar (8), and C-phase busbar (9) respectively via three-phase copper busbars (12). A strip switch (6) is installed on the A-phase busbar, B-phase busbar, and C-phase busbar respectively. The upper box (1) is made of SMC.

2. The cable branch box according to claim 1, characterized in that... The upper box (1) is provided with louvers (10) on both sides for ventilation and heat dissipation, and the inner side of the louvers is provided with a detachable insect screen (11).

3. The cable branch box according to claim 2, characterized in that... The molded case circuit breaker (5) is installed on the left side of the upper box, and the three-phase copper busbar (12) is located at the lower part of the molded case circuit breaker. The A-phase busbar, B-phase busbar and C-phase busbar are arranged horizontally from top to bottom.

4. The cable branch box according to claim 3, characterized in that... The louvers (10) are positioned below the three-phase copper busbar (12) at a height that is symmetrical about the two louvers.

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