The basic structural parts of the connector have contact piece, insulator, outer casing (depending on connector variety), accessories.
1. Contacts are connector’s core components to perform electrical connections. The contact pair is generally composed of a male contact and a female contact, and the electrical connection is completed by the insertion of the female and male contacts.
The male contact is a rigid part that is cylindrical (round pin), square (square pin) or flat (tab). Positive contacts are typically made of brass or phosphor bronze.
The negative contact, that is, the jack, is a key component of the contact pair. It relies on the elastic structure to elastically deform when it is inserted into the pin, and generates an elastic force to form a close contact with the male contact to complete the connection. There are many types of jacks, such as cylindrical (groove, neck), tuning fork type, cantilever beam type (longitudinal slotted), folded type (longitudinally slotted, 9-shaped), box-shaped (square jack) And a double-curved wire spring jack.
2. Insulators, also commonly referred to as bases or inserts, serve to position the contacts in the desired position and spacing and to ensure insulation between the contacts and between the contacts and the outer casing. Good insulation resistance, withstand voltage performance and ease of processing are the basic requirements for the selection of insulating materials into insulators.
3. The housing of the connector, also called the shell, is the outer cover of the connector. It provides mechanical protection for the built-in insulating mounting plate and pins, and provides alignment when the plug and socket are inserted, thereby fixing the connector. Go to the device.
4. Connector accessories are divided into structural accessories and mounting accessories. Structural accessories such as collars, positioning keys, locating pins, guide pins, coupling rings, cable clamps, seals, gaskets, etc. Install accessories such as screws, nuts, screws, coils, etc. The accessories are mostly standard and general.