The role of the connector is very simple, it plays the role of a connection, there is more than one type of connector, it is also divided into concentric connector, printed circuit connector, etc., the following is the main type of connector Simple analysis: The concentric connector is a kind of connector through the letter connector. It is mainly a small plug socket connector, which is small in size and can realize the function of switch closure. The concentric connector is suitable for low-frequency circuits. . And it is mostly used on the external power cord of earphone and microphone. Circular connector The characteristic of the circular connector is that its plugs and sockets are connected by screw threads, and its connection terminals are uncertain, and it has the characteristics of small size and high reliability. It is commonly used in general electronic products for the connection of cables. Ribbon cable connector The socket of this connector is directly welded to the printed circuit board. Its plug and ribbon cable adopt the method of piercing and crimping, and it is easy to use. It is mainly used for instrument and meter circuits. the connection between. The above concentric, round and ribbon cable connectors are the three main types of connectors. They are used in different electronic products and play the same role at the same time, which facilitates the connection between circuits and provides a smooth circuit for the circuit. It's convenient.