| 摘要 |
PURPOSE:To prevent function of an air-cleaner after closing of door, in an air- cleaner sharing power source with room lamp circuit, by interlocking the stopping function of air-cleaner with door opening function. CONSTITUTION:A room lamp circuit will light/unlight a room lamp 5 through turning on/off of manual switch 6 while interlocking with opening/closing of door switch 7 at DOOR position of said switch 6. Said room lamp circuit is provided with an air-celeaner control circuit 4, and upon function of normal open switch 8, a relay 10 is energized under such condition that the contact of relay 11 is turned on when a normally close switch 9 and a door switch 7 are closed, thus the contact is close. Consequently, power supply to the air-cleaner unit 3 is started and maintained by a holding current feeding circuit of relay 10 having a diode 12. |
