Sub-plugs, sockets and connectors. Plugs and sockets are generally divided into two-pole plug and two-pole with grounding plug.
Electricity flows, so I tell everyone here that as long as any electrical appliance is not in use, you must unplug it to save electricity.
For power products, there are usually four terms:
1. Plug. Refers to the part that is connected to the power cord and has a male plug. The full name should be called a plug connector. For two-pin flat plugs, English is sometimes spelled duckhead (duck head, whichever is the image meaning).
2. Connector. Refers to the part that is connected to the power cord and has a female jack socket.
3. The appliance input socket. Its state is similar to 1, but it is installed on a fixed body such as electrical appliances and not connected, including the socket body.
4. Socket. Its status is similar to 2, but the installation position is the same as 3. The full name should be called appliance socket.