High-voltage change-over switch box

Abstract

The invention provides a high-voltage change-over switch box, which comprises a frame, a front cabinet door I, a front cabinet door II, an upper cabinet door with an anti-treading plate, a left side cover plate, a right side cover plate, a rear side cover plate, a left side wiring terminal strip, a right side wiring terminal strip, a rear side upper layer wiring terminal strip and a rear side lower layer wiring terminal strip, a plurality of contactors respectively arranged on the left and right sides, an insulating arc extinguishing cover plate arranged above an arc extinguishing cover of thecontactor, and relays, connecting copper bars and supporting insulators arranged at the bottom of the switch box body. According to the invention, the whole vehicle power supply control and protection contactor is integrated into one cabinet body, the design difficulty of other equipment of the vehicle is reduced, and the improvement of the whole vehicle counterweight design is facilitated. If avehicle breaks down, a faulty line can be checked more conveniently through the high-voltage change-over switch box. Meanwhile, state signals of the eight contactors are integrally fed back to a wholevehicle network control system through a single cabinet body, and whole vehicle wiring design and whole vehicle electromagnetic compatibility are facilitated.

Description

technical field [0001] The invention relates to the technical field of transfer switch boxes, in particular, to a high-voltage transfer switch box. Background technique [0002] At present, with regard to the main design method of power supply protection and control of the main circuit, most of the previous projects have distributed line protection contactors in various corresponding equipment, such as traction inverters, auxiliary inverters, high-voltage electrical boxes, etc. In this way, the control and monitoring of the power supply of each system can be realized. 1. For the entire power supply system, the contactors used for power supply control and detection are scattered. The low level of integration is not conducive to the electrical design of the vehicle. 2. The size of other cabinet equipment is huge, which is not conducive to the design of the counterweight of the vehicle equipment. 3. The space layout of similar cabinets containing some contactors is messy, an...

AI Technical Summary

Problems solved by technology

Low integration level is not conducive to the electrical design of the whole vehicle

2. The size of other cabinet equipment is large, which is not conducive to the design of vehicle equipment counterweight

3. The space layout of similar cabinets containing some contactors is messy, using cables for wiring, difficult to install and difficult to maintain

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