Problem analysis and process flow of air tightness detection of automobile charging gun connector.

In new energy vehicles, most products need to be tested for air tightness or water tightness with a water-proof testing machine. For example, new energy vehicles Charging gun /Air tightness test of charging head, waterproof test of automobile controller, waterproof test of automobile harness / wire rod, air tightness test of power pack of new energy automobile, etc.

1、 Analysis of difficult problems in air tightness detection of automobile charging gun connector.

automobile Charging gun The connector is irregular as a whole because it is made of black waterproof plastic material and injection molding process. The front end is a circular convex part of the docking device, and there are five connecting circular holes inside; The rear end of the charging gun connector is connected with the wire, so it is difficult to fix it when using the waterproof tester for air tightness detection. In addition, the traditional water detection method cannot be used in the air tightness detection of the charger connector. Cleaning wastes unnecessary time after testing.

Moreover, the automobile charging gun connector uses a waterproof detector for air tightness detection, and the traditional water detection method is not applicable.

2、 Car Charging gun Connector air tightness test process flow.

1. According to the vehicle Charging gun According to the outline of the connector, customize the special auxiliary test mold (the test fixture is modeled, and a wire slot is made at one end). During the inspection, put the car charging gun connector into the mold, and the wire at the rear end can be put into the groove. In this way, the inspection of the wire does not affect the inspection of the car charging gun connector.

2. After connecting the customized test fixture with the air tightness and waterproof tester, set the test pressure and test time as required, turn on the suction switch of the air tightness and waterproof tester, put the vehicle charging gun connector to be tested into the test mold, and press the start button.

During the test, the upper and lower molds are closed. During the inspection, the gas without impurities is input into the inspection fixture through the waterproof test opportunity of the connector, and whether the air tightness of the automobile charger connector meets the requirements is judged according to whether there are bubbles in the water tank. If there is no bubble in the water tank, it proves that it meets the requirements and is qualified. Otherwise, it is unqualified.

Shenglan Technology Co., Ltd_ It focuses on the production of electronic connectors and research and development of precision components. Its products are widely used in consumer electronics, new energy vehicles, USB, 5g and other fields. Its industrial lines cover the Pearl River Delta, Southeast Asia and other regions. It has established long-term strategic cooperation relations with well-known enterprises such as Foxconn, Lixun precision, Huawei, Xiaomi, TCL, Hitachi Group, BYD and Great Wall Motors, with IATF 16949, ISO9001 ISO14001, QC080000 and other system certification and product safety certification, and provide professional connection and manufacturing solutions for the industry http://jctc.com.cn/