Alternating current electric car charging connecting device

Abstract

The invention discloses an alternating current electric car charging connecting device. A hard silica gel dustproof cover is arranged at the tail end of a charging gun head; the charging gun head anda gun body are connected with a fastening screw at the bottom of the gun head and a fastening screw at the front end of the gun head; gun head waterproof silica gel is arranged between the charging gun head and the gun body; a plurality of terminals are installed on a terminal support, and the terminal support is installed inside the charging gun head through a terminal support fastening screw; anO-shaped ring is arranged among the gun head and the multiple terminals; a mechanical lock is connected with the gun body through a mechanical lock plug; a charging gun spring is arranged on the gunbody, and the charging gun spring is located below the head end of the mechanical lock; a PCB assembly is arranged below the front part of the mechanical lock of the gun body, and the PCB assembly isfastened to the gun body of the PCB screw; a gun body upper cover for protecting the mechanical lock is arranged on the gun body; outgoing line waterproof silica gel is arranged at the head end of thegun body; the outgoing line waterproof silica gel is fastened at the head end of the gun body through a lock line buckle. The protective performance of the device is improved, the size of the deviceis reduced, and the device is convenient to carry.

Description

technical field [0001] The invention belongs to the new energy automobile industry, is mainly applied to conductive charging of electric automobiles, and relates to a charging connection device for AC electric automobiles. Background technique [0002] The protection level of the current electric vehicle charging connection device can only reach IP55. Although it can be used in general rainy days, typhoons are prone to occur in some areas, and the amount of rain is large and the rain lasts for a long time. In recent years, the city has been flooded seriously. If the gun line accidentally falls into the water, it cannot be used again. Although some manufacturers’ products have achieved IP67 protection performance, the gun line is installed in half (application number: 201720769686.X, which achieves The electric vehicle AC charging gun with IP67 protection level discloses an electric vehicle AC charging gun with IP67 protection level. The left gun shell and the right gun shell...

AI Technical Summary

Problems solved by technology

In recent years, the city has been flooded seriously. If the gun line accidentally falls into the water, it cannot be used again. Although some manufacturers’ products have achieved IP67 protection performance, the gun line is installed in half (application number: 201720769686.X, which achieves The electric vehicle AC charging gun with IP67 protection level discloses an electric vehicle AC charging gun with IP67 protection level. The left gun shell and the right gun shell are connected to each other to form the electric vehicle AC charging gun shell. See figure 1 ), the charging gun has high technical requirements for the production and installation process, the product quality is not stable, and the detection is inconvenient.

The current charging gun feedback switch and resistors on the market are installed separately and need to be welded, and the two ends of the resistor are easy to break after installation, which is not easy to install and will cause product quality problems

When the feedback switch is assembled with the gun body, some manufacturers use glue to install it. Although it can play a certain role in waterproofing, due to the control of the amount of glue, it is easy to cause the switch stroke to be wrong.

Images