It is difficult to find relevant information about who invented the switch button of the socket. In the past, household appliances were very popular, and there were many power plugs in a mess. Some people, for convenience, did not pinch the plug when pulling out the power plug, but pulled the wire, causing damage to the plug and wire, and sometimes electric shock. Adding a switch button to the socket solves this problem. You can disconnect the power supply without pulling out the plug, press the button, it will automatically pop up, disconnect the power supply, and at the same time press the button to reset. It can avoid the bad action of pulling out the plug by pulling the wire by hand, and can also prevent young children from playing with the socket.