Manual maintenance switch with secondary unlocking structure and its unlocking method

Abstract

The invention discloses a manual maintenance switch with a secondary unlocking structure, which comprises a connector plug, a connector socket and a handle, wherein the connector plug and the connector socket are matched and connected mutually; and the handle enhances connection between the connector plug and the connector socket. The handle rotates around the connector plug to control an anode and the connector socket to perform axial primary separation or closing. A secondary locking mechanism is also arranged between the anode and the connector socket. The connector plug and the connector socket have a first locking state, a second locking state and a third state. In the first locking state, the handle locks the connector plug and the connector socket to enable the two to be totally closed. In the second locking state, due to rotation of the handle, the connector plug and the connector socket are driven to deviate axially to enable signal terminals of the two to be broken. In the third state, the secondary locking mechanism drives the anode and the connector socket to further deviate axially to enable power and signal terminals of the two to be separated totally. In the case of unlocking, breaking of the signal terminals can be firstly carried out and breaking of the power terminals is then carried out, a time difference is formed by the two times of breaking, hot plugging is avoided, arcs are not generated, and the use is safer.

Description

technical field [0001] The invention relates to a manual maintenance switch with a secondary unlocking structure, which belongs to the technical field of electronic communication. Background technique [0002] At present, new energy vehicles with zero emission and no pollution have been paid more and more attention by various countries. The electrical connector consists of a fixed-end electrical connector, that is, a female contact (referred to as a socket), and a free-end electrical connector, that is, a male contact (referred to as a plug). Electric vehicles are running faster, so they need to be applied to high-speed electrical connectors. The technical points adopted in the development of high-speed electrical connectors include: 1. In order to reduce crosstalk, differential signals, noise-free signals and ground plane technologies are used; The delay difference caused by the unequal physical distance; 3. In order to obtain the maximum transmission efficiency, the char...

AI Technical Summary

Problems solved by technology

However, it is precisely because of the difference in time delay that electric arcs will be caused when the electrical connector is plugged and unplugged when the electric vehicle is under high voltage, resulting in potential safety hazards.

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