An electrical connector is an important device used to transmit electrical signals or power to different electronic devices or systems. This article will introduce the functions of electrical connectors, the different types and their wide application in various fields.

The electrical connector is mainly used for the circuit connection between the cable and the cable of electrical and electronic equipment, and the cable and the equipment, to achieve the transmission of low frequency signals, high frequency signals and electric energy (power). The electrical connector consists of two parts: a fixed electrical connector and a free electrical connector. The fixed electrical connector is a passive connection part installed on the panel and the base (or not installed), also known as the socket; The free-end electrical connector is an active connection part with a connection nut or other locking device, which is matched with a fixed-end electrical connector, also known as a plug. Electrical connectors connect and disconnect circuits by plugging and separating between plugs and receptacles.

Automotive wiring harness is used to connect the car circuit "central nervous system", is a variety of energy and signal transmission carrier, it is all over the various functional parts of the car, is the lifeblood of the car network. Connectors are electrical modules or units that are connected between wiring harnesses or electrical appliances to provide a convenient and reliable electrical installation interface for electrical connections. Connectors are usually divided into plug connectors and socket connectors, including adaptive plug/socket terminals, plug/socket jackets, and also involve CPA structure, TPA structure or PLR structure, and some seals will also have sealing rings or sealing plugs and other connection accessories. Of course, in addition to the commonly used connector connections, the wiring harness is also directly connected through a U-shaped joint or ultrasonic welding.