| 摘要 |
Provided is a portable charger connected to a wall electric power source and configured to supply an electric power from the wall electric power source to a load. The portable charger includes a plug (310) inserted in a socket (320) installed in the wall electric power source, an electric wire (330) connecting the plug and the load to supply an electric power from the wall electric power source to the load, a switch (340) disposed between the plug and the electric wire to switch on or off the supply of the electric power flowing through the electric wire, a first detection unit (350) configured to detect whether a user approaches, a second detection unit (360) disposed in the electric wire and configured to detect a tensile force applied to the electric wire, and a control unit (370) configured to supply an electric power through the electric wire to the load when the plug is plugged in the socket and to cut off the supply of the electric power flowing through the electric wire by controlling the switch on the basis of the user's approach that is detected by the first detection unit, and the tensile force that is detected by the second detection unit while the electric power is being supplied. |
