An end-face contact charging and discharging connector

Abstract

The invention discloses an end face contact charge-discharge electrical connector. An existing end face contact electrical connector can have the phenomenon of arc discharge. The end face contact charge-discharge electrical connector comprises a socket and a plug; the socket comprises a base, a floating plate, elastomers, a cover board, guide sleeves, tower springs and moving contact assemblies; the floating plate is arranged in a floating plate mounting cavity; one elastomer is arranged in one elastomer mounting cavity; each moving contact assembly comprises a moving contact insulator, a moving contact, a pressure spring and a shaft retaining ring; a flange part of each moving contact insulator is connected with the floating plate by a bolt; one end of each moving contact is provided with a pressure spring mounting shaft; each pressure spring mounting shaft passes through a moving contact mounting hole of the corresponding moving contact insulator; the plug comprises a mounting panel and fixed contact assemblies; each fixed contact assembly comprises a fixed contact, a fixed contact front insulator and a fixed contact rear insulator; each guide pillar on the plug extends into the corresponding guide sleeve of the socket. According to the invention, the displacement compensation function and the angle compensation function can be implemented, and the arc discharge risk is reduced.

Description

technical field [0001] The invention belongs to the technical field of vehicles, and relates to an electrical connector, in particular to a charge-discharge connector in which the power and signal mixed in the battery replacement mode of a new energy vehicle are contacted in an end-face contact mode. Background technique [0002] At present, there are electrical connectors with end-face contact on the market that are used in new energy vehicles in the battery replacement mode for charging and discharging batteries. This connector is a charging and discharging connector. This charging and discharging connector is composed of a plurality of individual connectors and a mounting panel, the individual connectors are mounted on the mounting panel by screws, and the mounting panels are fixedly mounted on the battery box and the vehicle respectively. The charge-discharge connector that has been used will cause arcing during discharge, that is, during the operation of the vehicle, ca...

AI Technical Summary

Problems solved by technology

The charge-discharge connector that has been used will cause arcing during discharge, that is, during the operation of the vehicle, causing the entire power system to fail to operate normally. Because the contacts will be burned during arcing, high temperatures may be generated, which may cause safety hazards. ACCIDENT

After analysis, the cause of this phenomenon is the unreliable connection of the connector

The reason for the unreliable connection of the connector is that when the vehicle is running, due to the complex road conditions and factors of driving habits, the battery box moves back and forth in all directions on the battery bracket, which causes relative displacement of the two parallel contact surfaces, damage The plating layer of the contacts is increased, thereby increasing the contact resistance; the battery itself weighs several hundred kilograms, and it is placed on the battery bracket for a long time, and the battery bracket will be subjected to multiple impacts from the battery box, and the battery bracket will be damaged. There is deformation, so that there is an angle between the two contact surfaces that should be parallel; the change of the contact resistance and the angle between the contact surfaces make the local areas of the two contact surfaces sometimes in contact and sometimes broken when the vehicle is running. Open state, so there will be arc phenomenon

The deformation of the battery bracket on the vehicle is unavoidable, and the movement of the battery box in the bracket is also unavoidable, so only the charging and discharging connector has displacement and angle compensation functions to solve the problem of arcing. The charging and discharging connector does not have the function of displacement and angle compensation. It can be seen that the traditional structure of the charging and discharging connector can no longer fully meet the requirements of new energy vehicles.

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