First, the contact piece is the core component of the automobile connector to complete the electrical connection function. Usually, a contact pair consists of a male contact and a female contact, and the electrical connection is completed through the insertion of the female contact and the male contact.
The male contact is a rigid part, and its shape is cylindrical (round pin), square column (square pin) or flat (insert). Male contacts are usually made of brass and phosphor bronze. The female contact, namely the jack, is the key part of the contact pair. It relies on the elastic deformation of the elastic structure when inserting the pin to generate elastic force and form close contact with the male contact to complete the connection. There are many kinds of jack structures, such as cylindrical (split slot, necking), tuning fork, cantilever (longitudinal slot), folding (longitudinal slot, 9-shaped), box (square jack), hyperboloid wire spring jack, etc.
Second, the shell, also known as the shell, is the outer cover of the automobile connector, which provides mechanical protection for the built-in insulating mounting plate and pin, and provides alignment when the plug and socket are inserted, thus fixing the connector on the equipment.
3. Insulator is also often called automobile connector base or plug-in, which is used to arrange contacts according to the required position and spacing to ensure the insulation performance between contacts and between contacts and shell. Good insulation resistance, withstand voltage and machinability are the basic requirements for selecting insulation materials for insulators.
Accessories, accessories are divided into structural accessories and installation accessories. Structural accessories, such as circlip, locating key, locating pin, guide pin, coupling ring, cable clamp, sealing ring, gasket, etc. Install accessories, such as screws, nuts, screws, spring rings, etc. Most accessories have standard parts and common parts.