| 摘要 |
PROBLEM TO BE SOLVED: To provide an insertion plug coming-off detection device which can be easily mounted to various insertion plugs communicating to a power supply cable, is low-priced and improves detection accuracy in coming-off detection.SOLUTION: The insertion plug coming-off detection device is configured to detect a state of connecting a plug receptacle which receives power supply or supplies power, and an insertion plug connected to the plug receptacle and communicating to a power supply cable. The device comprises at least: a light emitting part which irradiates the side of the plug receptacle with light; a light receiving part for receiving at least a part of reflection light from the side of the plug receptacle; a detection part for detecting the state of connecting the plug receptacle and the insertion plug on the basis of output from the light receiving part; and a display part for displaying a detection result detected by the detection part. The device is characterized in that the light emitting part, the light receiving part, the detection part and the display part are integrally provided in the insertion plug. |
