THERMO-SENSITIVE AUTOMATIC SWITCH

摘要

PROBLEM TO BE SOLVED: To provide a miniaturized thermo-sensitive automatic switch. SOLUTION: The switch comprises a body 2 and a cover 3 and is formed to an approximately the same dimension as a unit dimension of a wiring device that three or less can be mounted to a standardized mounting frame for three. A lens 4 that collects a heat beam to a sensor part 7, a middle frame 5 to which the lens 4 is fixed, a printed circuit board 6 to which the sensor part 7 is mounted, and a lock spring 8 are contained inside the device. The sensor part 7 detects a heat beam emitted from a human body to amplify the detected signal by a built-in amplifier and then outputs. It is no necessary to assemble an amplifier that amplify the detected signal of the sensor part 7 on the printed circuit board 6 as the sensor part 7 incorporates the amp. Therefore, the printed circuit board 6 is miniaturized to miniaturize the switch.