Abstract: The present invention relates to a power supply connection structure device, a manufacturing method thereof and a circuit connection method. The device, which is used to connect an electrical appliance to a power supply, includes a live wire and neutral wire connection unit and a control unit, the control unit is switched between an activation state and an idle state, when the control unit is in the idle state, the live wire and neutral wire connection unit is not connected to the power supply; and when the control unit is in the activation state, the control unit connects the live wire and neutral wire connection unit to the power supply, thus, by using the control unit, the power supply connection structure device is safe to use, is waterproof and prevents from electric shock. The control unit may include a push member located in a ground wire plughole and operable to turn on two micro-switches, one for the live terminal, the other one for the neutral terminal.

Abstract: A safety socket includes one or multiple socket bodies. A socket body has a live wire receptacle and a neutral wire receptacle, and includes a live wire connection circuit, a neutral wire connection circuit, and a locking and controlling mechanism. When the live wire pin and the neutral wire pin of a power plug are respectively inserted into the live wire receptacle and the neutral wire receptacle of the socket body, the locking and controlling mechanism is activated and is switched to the operating state so as to connect the live wire connection circuit and the neutral wire connection circuit. When the locking and controlling mechanism is in the idle state, the live wire connection circuit and the neutral wire connection circuit are disconnected. The safety socket can effectively prevent electric shock and is water-proof, thereby preventing electric shock accidents and ensuring the safe usage of the safety socket.