合浦The structural principle of board to board connectors

The basic structural components of board to board connectors include contacts, insulators, casings, and accessories.

Contacts are the core components of a connector that perform electrical connection functions. Generally, a contact pair is composed of a positive contact and a negative contact, and electrical connections are completed through the insertion and connection of the negative and positive contacts.

The shape of the positive contact part is cylindrical (circular pin), square cylindrical (square pin), or flat (insert), and it is a rigid part,. Positive contacts are generally made of brass or phosphor bronze.

The contact part is the socket, which is the key component of the contact pair. It relies on the elastic structure to undergo elastic deformation when it is inserted into the contact pin, generating elastic force and forming close contact with the positive contact part to complete the connection.

There are many types of socket structures, including cylindrical (slotted, necked), tuning fork, cantilever (longitudinally slotted), folded (longitudinally slotted, 9-shaped), box (square socket), and hyperbolic spring socket.

Insulators, also known as bases or mounting plates, are used to arrange the contacts in the required positions and spacing, and to ensure the insulation performance between the contacts and between the contacts and the shell. Good insulation resistance, voltage resistance, and ease of processing are the basic requirements for selecting insulation materials to be processed into insulators.

The shell, also known as the outer shell, is the outer cover of the board to board connector. It provides mechanical protection for the insulated mounting plate and pins inside, and provides alignment when the plug and socket are inserted, thereby fixing the board to board connector to the device.

The attachments are divided into structural attachments and installation attachments. Structural attachments such as snap rings, positioning keys, positioning pins, guide pins, connecting rings, cable clamps, sealing rings, gaskets, etc. Install accessories such as screws, nuts, screws, spring coils, etc. Most attachments have standard and universal parts.