SIGNALING DEVICE, AND VENTILATOR

PROBLEM TO BE SOLVED: To develop an economical and functional signaling device capable of using light emitting devices as a display means by using a switch built in with normally common light emitting devices, and to provide an economic ventilator provided with a signaling function using the signaling device. SOLUTION: The wall switch 6 built in with the light emitting devices LED10 and an electric appliance are serially connected and connected to a commercial power source 7, a detection circuit 11 detecting operation of the wall switch 6 and a control circuit 12 controlling turning on/off of the light emitting devices LED10 are provided in an internal circuit of the appliance, and it is composed such that the light emitting devices LED10 of the wall switch 6 are not turned on by energization to the detection circuit 11. The detection circuit 11 carries out output to a microcomputer 19 provided in the internal circuit, and the microcomputer 19 controls turning on/off of the light emitting devices LED10 of the wall switch 6 via the control circuit 12 to signal preset signaling contents on receival of a detection output of the detection circuit 11. COPYRIGHT: (C)2006,JPO&NCIPI