The automobile connector is composed of four parts: contact, shell, insulator and accessories. The four main parts enable the automobile connector to act as a bridge and operate stably. The automobile connector must comply with the standard of USCAR-20, which stipulates that the contact surface of the electric connector of the automobile connector should always be reliable throughout the service life, including the following factors:

1、 The material of connector contact is stable and reliable;

2、 Positive force stability;

3、 The voltage and current of the circuit are stable;

4、 The temperature shall be within the specified range, including the ambient temperature and its own temperature rise;

5、 Good robustness;

6、 It must be the same as the connector used for high-speed long-distance communication computer, and the automobile connector must be able to work reliably under harsh conditions;

7、 Connector insertion force: below 20.5kg;

8、 Connector retention: more than 2.5kg;

9、 Heat resistance: - 40~120 ℃.