Where is the reliability of electric vehicle connectors reflected?

The reliability of electric vehicle connectors can consider several factors, such as the materials used in product design and manufacturing, the operating environment, and the environment in which they can be used, especially temperature, humidity, and corrosiveness, which determine the failure mechanisms that will occur. The functional requirements of the connectors determine the allowable degree of failure.
The reliability evaluation procedure for connectors includes the following content, determining the acceptable standards to be applied, including terminal resistance and other failure modes. Confirm the failure mechanism of the action based on the importance of application and classify it. Develop testing programs to handle failure mechanisms in predicted applications, rank and rate them, determine acceleration factors, and conduct special testing if possible. Perform appropriate data analysis and statistical processing based on the data obtained from the appraisal program. The above steps for evaluating reliability depend on engineering judgment, and the manufacturer and user of the connector should unanimously agree on the content and method of the identification procedure.

A connector is defined in terms of function and structure, providing a separable connection between two subsystems in an electronic system without having an unacceptable impact on the system's performance. Separability is the reason why we use connectors to facilitate the maintenance and upgrading of subsystems or components of a system. At the same time, this connection should not have any unacceptable impact on the performance of the system. For example, signal absorption, attenuation, and power loss. The requirements for separable and unacceptable limits depend on the specific application requirements of the connector. Structurally, a connector has four structural elements: A, the contact interface between terminals B, the surface treatment of terminals C, the spring of terminals D, and the housing of the connector.