1、 First, distinguish the concepts of "connector", "terminal block", and "connector"

① Connector, also known as CONNECTOR. Also known as plug-in connectors. It is a component that electronic engineering technicians often come into contact with. Also known as connectors, plugs, and sockets. Generally refers to electrical connectors. A device that connects two active devices to transmit current or signals.

② A connector is a positioning connector that connects electronic circuits, consisting of two parts: a plug-in and a connector. Generally, they can be completely separated. The similarity between a switch and a connector lies in the change of their contact state to achieve the purpose of converting the circuit they are connected to. However, the essential difference lies in the fact that the connector only has two states: insertion and removal. The switch can convert the circuit on its body, while the connector cannot convert on its body. The contact pairs of the connector have a fixed corresponding relationship, so the connector can also be called a connector.

③ Terminal, also known as Terminal in English. It is a type of accessory product used to achieve electrical connections, which is classified as a connector in industry. Terminal blocks are used for the convenience of connecting wires. They are actually a piece of metal enclosed in insulating plastic, with holes at both ends for inserting wires. Wiring terminals can be divided into WUK wiring terminals, European wiring terminal series, plug-in wiring terminal series, etc.

2、 Distinguish between "connectors", "wiring terminals", and "connectors" based on their scope of ownership

① "Connector=connector" is the first major category, and wiring terminals are just one type of "connector" category

What is the difference between connectors and connectors?

A connector is a connection between wires; A connector is a connection between wires, boards, and boxes. In real life, people often refer vaguely to the same thing.

② The terminal is part of the connector. A connector is a general term, which usually includes two parts: a housing and a terminal. Housing is mostly made of plastic for protective purposes, while terminal is made of metal for conductivity purposes.