Socket, wiring circuit and train

Abstract

The invention provides a socket, comprising a front cover, a connector socket and a wiring box. Particularly, the front cover is provided with a contact sheet; the connector socket is provided with six insertion pins, wherein four insertion pins are connected with three-phase four-wire alternating current of an externally connected ground power supply in sequence without the need of single match with the ground. The other two insertion pins are used for matching with the contact sheet of the front cover; when the front cover is opened or closed, loops of the two insertion pins are controlled to be disconnected or connected, so the linkage with the high-voltage poser supplying system of a vehicle is realized.

Description

technical field

[0001] The invention relates to the field of vehicles, more specifically, to a socket, a wiring circuit and a train. Background technique

[0002] With the rapid development of science and technology, EMUs have become the favorite means of transportation for users. Usually, rail vehicles such as EMUs are equipped with external power sockets, which are used to provide AC power to vehicles through ground power supplies during emergency or maintenance, so as to ensure the electricity demand of vehicles. In addition to supplying power to the vehicle, the external power socket also needs to be interlocked with the high-voltage power supply system of the EMU vehicle to ensure that when the external power supply is used for power supply, the vehicle does not start the high-voltage power supply, thereby avoiding accidents.

[0003] In addition to the interlock function of the existing external power socket, a contactor needs to be set on the ground, and then the act...

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