Four basic structural components of automotive connectors

Automotive connector is a component that our electronic engineers and technicians often come into contact with. Its function is very simple: to build a communication bridge between blocked or isolated circuits in the circuit, so that the current can flow and the circuit can achieve the predetermined function. The form and structure of automobile connectors are ever-changing. They are mainly composed of four basic structural components, namely: shell (depending on the variety), contacts, accessories and insulators.

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1. The shell, also known as the shell, is the outer cover of the automobile connector. It provides mechanical protection for the built-in insulating mounting plate and pins, and provides the alignment of the plug and socket when they are plugged in, thereby fixing the connector to the device. Second, the contact part is the core part of the automobile connector to complete the electrical connection function. Generally, a contact pair consists of a male contact and a female contact, and the electrical connection is completed by inserting the female and male contacts. The male contact is a rigid part, and its shape is cylindrical (round pin), square cylindrical (square pin) or flat (insert). The male contacts are generally made of brass and phosphor bronze. The female contact, that is, the socket, is the key part of the contact pair. It relies on the elastic deformation of the elastic structure when it is inserted into the pin, and the elastic force is generated to form close contact with the male contact to complete the connection. There are many types of jack structures, including cylindrical type (splitting groove, shrinking notch), tuning fork type, cantilever beam type (longitudinal slotting), folding type (longitudinal slotting, figure 9 shape), box-shaped (square jack) and hyperboloid wire spring jack, etc. 3. Accessories. Accessories are divided into structural accessories and installation accessories. Structural accessories such as clamping rings, positioning keys, positioning pins, guide pins, coupling rings, cable clamps, sealing rings, gaskets, etc. Installation accessories such as screws, nuts, screws, spring coils, etc. Most accessories have standard parts and general parts. Fourth, insulator, insulator is also often called automotive connector base (base) or mounting plate (insert). Its function is to arrange the contacts according to the required position and spacing, and to ensure the insulation performance between the contacts and between the contacts and the shell. Good insulation, both ends take combination screw.

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