| 摘要 |
PURPOSE:To atop a brush motor along with the stopping of an electric blower by controlling the brush motor with an insulation transmitting means. CONSTITUTION:When a brush motor 192 is turned ON, then a brush operating switch 193 is turned OFF, and current flowing through the brush operating switch 193 is permitted to flow to the luminous diode 405 of an insulation transmitting means 250, and the luminous diode 405 is lit, and a photo-TRIAC 420 is turned ON, and by triggering a TRIAC 279, the brush motor 192 is driven. On the contrary, when the brush switch 193 is turned ON, then current flowing through the luminous diode 405 is by-passed to the brush switch 193, and the light of the luminous diode 405 is extinguished, and the photo-TRIAC 420 is forced not to be triggered, and so the brush motor 192 is stopped. |
