Direct-current charging gun mechanism and method for monitoring connection reliability of direct-current charging gun mechanism

Abstract

The invention discloses a direct-current charging gun mechanism and a method for monitoring the connection reliability of the direct-current charging gun mechanism, and aims at improving the problem that the connection reliability of a charging gun and a charging socket cannot be accurately judged at present. The direct-current charging gun mechanism comprises a charging gun head and the charging socket, wherein the charging socket is detachably connected with the charging gun head; a conductive metal male needle of the charging gun head is arranged at one end of the charging gun head; a charging gun head conductive cable connected with the conductive metal male needle of the charging gun head is arranged in the charging gun head; a conductive metal female needle of the charging socket, which is matched with the conductive metal male needle of the charging gun head is arranged at one end of the charging socket; and a charging socket conductive cable connected with the conductive metal female needle of the charging socket is arranged in the charging socket. The direct-current charging gun mechanism can determine whether the connection condition of the charging gun and the charging socket is reliable or not, simultaneously can accurately determine whether the charging gun is qualified or not and can monitor the service condition of the charging gun in real time, so that the overheat condition caused by excessive current of the charging gun is avoided.

Description

technical field [0001] The invention relates to a DC charging gun mechanism and a monitoring method for its connection reliability. Background technique [0002] With the rapid development of the electric vehicle industry, the construction of charging stations and charging guns has also been developed rapidly, but at the same time as the development, safety issues have always been the focus of attention. Although GB / T20234 has made detailed regulations on the technical requirements and service life of the charging gun, how to count the service life of the charging gun and how to determine whether the charging gun can still be used has been seldom paid attention to. At present, the service life and the number of times of use of the charging gun are roughly estimated based on the construction and use time of the charging pile and the daily charging trips, and it is impossible to accurately judge the qualification of the charging socket of the charging gun. Contents of the in...

AI Technical Summary

Problems solved by technology

At present, the service life and use times of the charging gun are roughly estimated based on the construction and use time of the charging pile and the daily charging trips, and it is impossible to accurately judge the qualification of the charging socket of the charging gun.

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