What is the basic structure of a connector?

Connectors, also known as connectors, mainly in electronic products, electrical equipment to provide convenient electrical plug connection, widely used in electronic equipment, making the production of electronic products, maintenance efficiency can be greatly improved. As a result of the large number of plug-in connection, the reliability of its connection, the size of the contact resistance for the quality of the product is increasingly important, so it is necessary to use the performance of the connector for a comprehensive understanding of the connector in order to reasonably and correctly use the connector.

I. The basic structure of the connector ① contact. It is the connector to complete the electrical connection function of the core parts, generally by the anode contact and cathode contact parts composed of contact pairs, through the cathode and anode contact parts of the insertion and completion of the electrical connection. Anode contact is a rigid part, its shape is cylindrical (round pin), square cylindrical (square pin) or flat (insert). Anode contacts are generally made of brass, phosphor bronze. Cathode contact piece that jack, it is the key parts of the contact pair, relying on the elastic structure is the pin inserted when the elastic deformation occurs and produce elastic force and the positive contact piece to form a close contact, complete the connection. Jack structure of many kinds, there are cylinder type (split slot, indentation), tuning fork type, cantilever beam type (longitudinal slots), folding type (longitudinal slots, "9" shape), box-shaped (square jack) and double-sided surface wire spring jacks and so on. ② Insulator. Insulator is also often referred to as the base or mounting plate, its role is to make contact with the desired location and spacing, and to ensure that the insulation between the contact parts and between the contact parts and the shell. Good insulation resistance, voltage resistance, and ease of processing is the basic requirement for selecting insulating materials to be processed into insulators. ③ Shell. The shell, also known as the outer shell (depending on the species), is the outer cover of the connector, which provides mechanical protection for the insulated mounting plate and pins inside, and provides alignment when plugs and sockets are inserted, which in turn fixes the connector to the equipment. ④ Attachment. Attachments are divided into structural and mounting attachments. Structural accessories such as snap rings, locating keys, locating pins, guide pins, connecting rings, cable clamps, seals and gaskets. Installation accessories such as screws, nuts, screws and spring rings. Most of the accessories are standardized and general-purpose parts.

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