CN214428920U

CN214428920U - Main bus closed compartment of direct-current switch cabinet

Info

Publication number: CN214428920U
Application number: CN202023336239.6U
Authority: CN
Inventors: 常青; 王彬; 钱小森; 杨锐; 郭志奇; 吴杰; 顾香; 万家阳; 陈玉建; 张晓峥; 朱杰; 许锡盛; 赵晋; 张玉荣; 吴炎
Original assignee: Zhenjiang Daqo Secheron Traction Power Co ltd
Current assignee: Zhenjiang Daqo Secheron Traction Power Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-19
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a direct current switch cabinet main bus closed compartment, which belongs to the technical field of direct current switch cabinets, and particularly relates to a novel direct current switch cabinet rear main bus chamber structure, which comprises a high-voltage element chamber, a main bus chamber and a cable wiring chamber, wherein a cabinet rear upper door is arranged at one side behind the high-voltage element chamber, and a cabinet rear lower door is arranged at one side behind the main bus chamber and the cable wiring chamber; a first installation partition plate and a second installation partition plate are arranged above and below the main bus compartment. The utility model discloses a holistic spatial structure behind traditional direct current cubical switchboard cabinet utilizes the installation baffle to form upper, middle and lower cellular-type enclosed bus room structure, and effectual high-voltage element behind the cabinet, go up main bus, the electrical connection between the main bus down effectively reduces upper and lower main bus and even produce possible risks such as direct current arcing, can not influence other compartments yet.

Description

Main bus closed compartment of direct-current switch cabinet

Technical Field

The utility model belongs to the technical field of the direct current cubical switchboard, concretely relates to novel direct current cubical switchboard cabinet back main bus-bar room structure.

Background

The rear bus chamber of the traditional rail transit direct-current switch cabinet is mostly set to be of an integral space structure, and main components of direct-current switch equipment, namely a partial high-voltage element at the rear part of the cabinet and an upper main bus and a lower main bus, cannot be effectively separated. When the equipment works, the upper main bus and the lower main bus are influenced by the opening and closing of the circuit breaker, and the phenomena of electric insulation breakdown, direct current arcing and the like of the main buses are easy to occur, so that potential safety hazards are caused, and life and equipment property safety of crisis personnel are endangered.

Application number 201720149416.9, the chinese utility model patent that the publication date is 2017, 8, 25 discloses a dc switch cabinet door, including the door body and door opener, the door body comprises two flat plate parts and from the outside protruding structure of dc switch cabinet, and this protruding structure arranges along the length direction of cabinet door, protruding structure includes a plane part and two inclined plane parts, the plane part is on a parallel with the flat plate part, two inclined plane parts connect respectively the both ends and two of plane part the flat plate part. The cabinet body is not provided with a corresponding insulation compartment, and phenomena such as uploading short circuit breakdown and direct current arcing are easily caused. Therefore, in order to overcome the defects in the prior art, it is necessary to provide a structure with an upper, middle and lower separated enclosed bus bar chamber.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provided a direct current cubical switchboard main bus seals compartment.

A main bus closed compartment of a direct current switch cabinet comprises a front cabinet body and a rear cabinet body, and is characterized in that the rear cabinet body comprises a plurality of independent spaces which are separated by insulated partition boards; the rear cabinet body comprises a high-voltage element chamber, a main bus chamber and a cable wiring chamber, a cabinet rear upper door is arranged on one side behind the high-voltage element chamber, and a cabinet rear lower door is arranged on one side behind the main bus chamber and the cable wiring chamber; and a first mounting partition plate and a second mounting partition plate are arranged above and below the main bus chamber.

Preferably, the cabinet rear lower door comprises a first insulating baffle and a second insulating baffle, which are respectively arranged on the side surfaces of the main bus chamber and the cable wiring chamber.

Preferably, the first mounting partition plate and the second mounting partition plate are fixed on a C-shaped upright post of the cabinet body through a triangular support.

Preferably, the cabinet rear upper door and the cabinet rear lower door are connected with the cabinet body through a rotating shaft arranged on one side of the cabinet body.

Preferably, the cabinet rear upper door and the cabinet rear lower door slide rail are connected with the cabinet body.

Preferably, the first insulating barrier and the second insulating barrier are polycarbonate plates.

Preferably, the first insulating baffle and the second insulating baffle are fixed on the C-shaped upright post of the cabinet body through the matching of a knob and a triangular support.

Preferably, the number of the knobs is 4.

Advantageous effects

The utility model discloses a holistic spatial structure behind traditional direct current cubical switchboard cabinet utilizes the installation baffle to form upper, middle, lower cellular-type enclosed bus room structure, and effectual high-voltage element behind the cabinet, last main bus, the electrical connection between the lower main bus make the function between the three completely independent each other not influence, even effectively reduce upper and lower main bus and produce possible risks such as direct current arcing, can not influence other compartments yet. In addition, the rear end of the cabinet is provided with an insulating baffle, and the cabinet can be maintained after being disassembled, so that equipment and personal and property safety are greatly improved.

Drawings

FIG. 1 is a front view of a main bus enclosed compartment of a DC switchgear;

fig. 2 is a perspective view of a main bus closed compartment of a direct current switch cabinet.

The reference numerals in the figures denote the following meanings: 1. a high-voltage element chamber; 2. a main bus bar chamber; 3. a cable connection chamber; 4. the cabinet is arranged at the back of the door; 5. a cabinet rear lower door; 61. a first mounting baffle; 62. a second mounting baffle; 71. a first insulating barrier; 72. a first insulating barrier; 8. an upper main bus; 9. and a lower main bus.

Detailed Description

As shown in fig. 1, the rear bus bar chamber of the dc switch cabinet comprises three parts from top to bottom: a high-voltage element chamber 1; a main bus bar room 2; a cable connection chamber 3. A cabinet rear upper door 4 is arranged on one side behind the cabinet of the high-voltage component room 1, and a cabinet rear lower door 5 is arranged on one side behind the main bus room 2 and the cable wiring room 3.

As shown in fig. 2, a first mounting partition plate 61 is arranged at the bottom end of the high-voltage component chamber 1, the first mounting partition plate 61 is fixed on a C-shaped upright post of the cabinet body through a triangular support at a joint 4 with the cabinet body, and the first mounting partition plate 61, the rear upper door 4 of the cabinet and the cabinet top plate form a first closed compartment, i.e., the high-voltage component chamber 1. The upper end and the lower end of the main bus chamber 2 are respectively provided with a first mounting partition plate 61 and a second mounting partition plate 62, the rear end of the cabinet is provided with a first insulating baffle plate 71, the first insulating baffle plate 71 is fixed on a C-shaped upright post of the cabinet body through 4 knobs and triangular supports in a matched mode, the first insulating baffle plate 71 is made of polycarbonate plates and has good insulating performance; the first insulating baffle 71, the first mounting partition 61 and the second mounting partition 62 form a second closed compartment, namely the main bus bar chamber 2. The rear end of the cable wiring chamber 3 is provided with a second insulating baffle 72, and the second insulating baffle 72, the second mounting partition 62 and the cabinet bottom plate form a third closed compartment, namely the cable wiring chamber 3. The design of above structure makes upper main bus 8, lower main bus 9 separate, reduces the potential safety hazard of equipment.

As a preferred embodiment, the cabinet rear upper door 4 and the cabinet rear lower door 5 are connected with the cabinet body through a rotating shaft arranged on one side of the cabinet body, and the cabinet rear upper door 4 and the cabinet rear lower door 5 can be opened through rotation of the rotating shaft for daily maintenance and overhaul.

As a preferred embodiment, the cabinet rear upper door 4 and the cabinet rear lower door 5 are connected with the cabinet body through slide rails, and the cabinet rear upper door 4 and the cabinet rear lower door 5 can slide up and down through the slide rails to open the cabinet doors for daily maintenance and overhaul.

Claims

1. A main bus closed compartment of a direct current switch cabinet comprises a front cabinet body and a rear cabinet body, and is characterized in that the rear cabinet body comprises a plurality of independent spaces which are separated by insulating partition plates; the rear cabinet body comprises a high-voltage element chamber (1), a main bus chamber (2) and a cable wiring chamber (3), a rear upper cabinet door (4) is arranged on one side of the rear of the high-voltage element chamber (1), and a rear lower cabinet door (5) is arranged on one side of the rear of the main bus chamber (2) and the cable wiring chamber (3); and a first mounting partition plate (61) and a second mounting partition plate (62) are arranged on the upper part and the lower part of the main bus chamber (2).

2. A dc switchgear main bus bar enclosure compartment according to claim 1, characterized in that the cabinet rear lower door (5) comprises a first insulating barrier (71) and a second insulating barrier (72) respectively arranged on the sides of the main bus bar compartment (2), the cable connection compartment (3).

3. The main busbar closed compartment of the direct current switchgear according to claim 1, wherein the first mounting partition (61) and the second mounting partition (62) are fixed to the C-shaped pillar of the switchgear body by a triangular brace.

4. The main bus closed compartment of a direct current switchgear cabinet according to claim 1, characterized in that the cabinet rear upper door (4) and the cabinet rear lower door (5) are connected to the cabinet body by a rotating shaft arranged at one side of the cabinet body.

5. The main bus bar enclosed compartment of DC switchgear cabinet according to claim 1, characterized in that the cabinet rear upper door (4) and the cabinet rear lower door (5) are connected with the cabinet body by sliding rails.

6. The main bus bar enclosed compartment of dc switchgear according to claim 2, characterized in that said first insulating barrier (71) and second insulating barrier (72) are polycarbonate sheets.

7. The main bus bar closed compartment of the direct current switchgear cabinet as claimed in claim 2, wherein the first insulating baffle (71) and the second insulating baffle (72) are fixed on the C-shaped column of the cabinet body by a knob and a triangular support.

8. The DC switchgear main bus bar enclosed compartment of claim 7, wherein the number of said knobs is 4.