Mechanical properties

Mechanical performance as far as the connection function is concerned, the plugging force is an important mechanical performance. The insertion force is divided into insertion force and pull-out force (pull-out force is also called separation force), and the requirements of the two are different. There are provisions on the maximum insertion force and minimum separation force in the relevant standards, which shows that from the perspective of use, the insertion force is small (thus the structure with low insertion force LIF and no insertion force ZIF), and if the separation force is too small, it will affect the reliability of contact.

Another important mechanical property is the mechanical life of the connector. Mechanical life is actually an index of durability, which is called mechanical operation in the national standard gb5095. It takes one insertion and one pull-out as a cycle, and takes whether the connector can normally complete its connection function (such as contact resistance value) after the specified insertion and pull-out cycle as the evaluation basis. The plugging force and mechanical life of the connector are related to the contact structure (positive pressure), the coating quality of the contact part (sliding friction coefficient) and the dimensional accuracy (alignment) of the contact arrangement.