The terminal structures of connector sockets mainly include wire spring, crown spring, cantilever, claw spring, and torsion spring. Among them, the inner part of the wire spring terminal is a hyperbolic wire spring structure, which is made up of several elastic gold-plated beryllium copper wires that are evenly wound at a certain angle. When the pin is inserted into the wire spring hole, these elastic copper wires tightly wrap around the pin, forming a multi wire contact. A pair of pinholes is equivalent to several pairs of ordinary leaf spring type pinholes used in parallel, achieving the advantages of low and stable contact resistance, low insertion and removal force, and low contact wear. The product's insertion and removal life can reach up to 100000 times, and it is not easy to produce instantaneous breakage in strong vibration and impact environments, with better reliability. The connectors using wire spring hole terminals have been widely used in industries such as industry, energy, automotive electronics, and semiconductors.
