The main components and specific functions of automotive connectors

The main role of the car connector is to connect the circuits that are blocked or isolated in the circuit, so that the current flows and the circuit realizes the predetermined function. The car connector consists of four main parts, which are: housing, contacts, accessories and insulators. The following is the specific role of the four main parts of the automobile connector:

A. The housing is the outer cover of the automobile connector, which provides mechanical protection for the internal insulation mounting plate and pin, and provides alignment when the plug and socket are inserted, and then fixes the connector to the equipment;
B, the contact part is the core part of the car connector to complete the electrical connection function. Generally, the contact pair is composed of positive contacts and negative contacts, and the electrical connection is completed through the insertion of Yin and Yang contacts. The positive contact is a rigid part with a cylindrical shape (round pin), a square column shape (square pin) or a flat shape (insert). Positive contacts are generally made of brass or phosphor bronze. The negative contact part is the jack, which is the key part of the contact pair. It relies on the elastic deformation of the elastic structure when inserting the pin and generates the elastic force to form close contact with the positive contact part to complete the connection. There are many types of jack structures, such as cylinder type (split slot, reduced mouth), tuning fork type, cantilever beam type (longitudinal slot), folded type (longitudinal slot, 9-figure), box shape (square jack) and hyperboloid wire spring jack;
C, accessories are divided into structural accessories and installation accessories. Structural accessories such as fasteners, positioning keys, positioning pins, guide pins, connecting rings, cable clamps, sealing rings, gaskets, etc. Mounting accessories such as screws, nuts, screws, spring rings, etc. Most accessories have standard parts and universal parts;
D, the insulator is also often called the automotive connector base (base) or mounting plate (insert), its role is to make the contact parts arranged according to the required position and spacing, and ensure the insulation performance between the contact parts and the contact part and the shell. Good insulation, both ends take combination screw.