A charging gun for fast charging of high-protection electric vehicles

Abstract

The invention relates to a high-protection charging gun for quick charging of an electric vehicle. The charging gun comprises a gun body, a holding handle, a wiring plug, a charging plug, a current-limiting fuse, an overload protection circuit, a charging and discharging controller and a comprehensive control circuit, the gun body is of a hollow tubular structure. The front end face and the rear end face of the shell are provided with insulating sealing ends to form a charging cavity. The wiring plug is embedded into the outer surface of the insulating sealing end on the rear end surface of the gun body; wherein the charging plug is embedded in the outer surface of an insulation sealing end on the front end face of the gun body, the current-limiting fuse, the overload protection circuit and the charging and discharging controller are embedded in the charging cavity, the gun body is in sliding connection with the outer surface of the gun body through a sliding rail, a bearing cavity isformed in the holding handle, and the comprehensive control circuit is embedded in the bearing cavity. On one hand, the flexibility and convenience of charging operation can be effectively improved, on the other hand, effective insulation isolation between a charging operation part and a charging circuit is achieved, and the state in the charging process can be effectively controlled and managed.

Description

Technical field [0001] The invention relates to a charging gun, specifically a high-protection charging gun for fast charging of electric vehicles. Background technique [0002] At present, in the process of charging electric vehicles, both the charging pile and the on-board backup charger need to be connected to the external power supply through the charging gun. However, in use, it is found that the current charging gun equipment is often based on the traditional The plug is directly connected with the wire, although it can meet the needs of use, but it often lacks effective circuit protection capabilities during charging operations, which leads to the charging power supply when the circuit is overloaded due to short circuit and other faults during charging. Equipment and electric vehicles are damaged and even cause fires in severe cases. In addition, the current structure of the charging gun equipment is fixed, so it is impossible to flexibly adjust the charging angle and posi...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of charging electric vehicles, both the charging pile and the on-board backup charger need to be connected to the external power supply through the charging gun, but it is found in use that the current charging gun equipment is often based on the traditional The plug is directly connected to the wire. Although it can meet the needs of use, it often lacks effective circuit protection capabilities during charging operations, which can easily lead to failures in the charging power supply when faults such as short circuit overload or excessive current occur during charging. Equipment and electric vehicles are damaged, and even cause fires in serious cases. In addition, the structure of the current charging gun equipment is fixed, so it is impossible to flexibly adjust the charging angle and position according to the needs of use during charging, which seriously affects the convenience of charging operations. At the same time, the current insulation protection of the charging gun is only realized by the insulation layer covering the plug, so the insulation protection level is relatively low. When accidents such as leakage occur, it cannot provide effective insulation protection for the operator. Seriously threaten the personal safety of operators, so in view of this situation, it is urgent to develop a new electric vehicle charging gun equipment to meet the needs of actual use

Images