First, the touch part is the central part of the car connector to complete the electrical connection function. Generally, a touch pair is composed of a male touch piece and a female touch piece, and the electrical connection is completed through the insertion of the female touch piece and the yang touch piece.

The positive touch element is a rigid part, and its shape is cylindrical (round pin), square cylinder (square pin) or flat (insert piece). The positive touch element is generally made of brass or phosphor bronze. The female touch piece, namely the socket, is the key part of the touch pair. It relies on the elastic structure to be elastically deformed when it is inserted into the pin to generate elastic force to form a tight touch with the male touch piece, completing the connection. There are many types of jack structures, including cylindrical (split, necked), tuning fork, cantilever type (longitudinal slot), folding type (longitudinal slot, 9-shaped), box-shaped (square jack) And the hyperboloid wire spring jack and so on.

Second, the shell, also called the shell, is the outer cover of the car connector. It provides mechanical protection for the built-in insulation board and pins, and provides the alignment of the plug and socket when mating, and then fixes the connector To the device.

Third, the insulator, the insulator is also often called the car connector base (base) or device board (insert), its function is to arrange the touch parts according to the required position and distance, and to ensure that the touch parts and the touch parts Insulation function between the shell and the shell. Outstanding insulation resistance, voltage withstand function and easy processing are the basic requirements for selecting insulating materials and processing them into insulators.

Fourth, accessories, accessories are divided into structural accessories and device accessories. Structural accessories such as clamp rings, positioning keys, positioning pins, guide pins, connecting rings, cable clamps, sealing rings, gaskets, etc. Device accessories such as screws, nuts, screws, spring rings, etc. Most of the accessories have standard parts and common parts.