Structure of board-to-board connector

The basic structural parts of the board-to-board connector include contacts, insulators, shells and accessories.

Contacts are the core parts of the connector to complete the electrical connection function. Generally, a contact pair is composed of a male contact piece and a female contact piece, and the electrical connection is completed by the insertion of the female and male contact pieces.

The shape of the male contact piece is cylindrical, square column or flat which is a rigid part.The male contacts are generally made of brass and phosphor bronze.

The contact piece is the socket, which is the key part of the contact pair. It relies on the elastic structure to be deformed elastically when it is inserted into the pin to generate elastic force to form close contact with the male contact piece to complete the connection.

There are many types of jack structures, including cylindrical, tuning fork, cantilever type, folding type, box-shaped, hyperboloid wire spring jacks, etc.

The insulator makes the contact pieces arranged according to the required position and spacing, and ensures the insulation performance between the contact pieces and between the contact piece and the shell. Good insulation resistance, withstand voltage performance and easy processing are the basic requirements for selecting insulating materials to be processed into insulators.

The shell is the outer cover of the board-to-board connector, which provides mechanical protection for the built-in insulating mounting board and pins, and provides alignment of the plug and socket when mating, and then fixes the board-to-board connector to the device.

The accessories are divided into structural accessories and installation accessories. Structural accessories include clamp rings, positioning keys, positioning pins, guide pins, connecting rings, cable clamps, sealing rings, gaskets, etc. Installation accessories include screws, nuts, screws, spring rings, etc. Most of the accessories have standard parts and common parts.


Post time: Jul-28-2020