| 摘要 |
PROBLEM TO BE SOLVED: To prevent the fogging of a window glass and to reduce noise of recirculation air by changing the air volume blown from a car air conditioner. SOLUTION: This controller switches a connecting point of a blower motor 19 and a plurality of resistors 16, 17, 18 to a power source terminal 7 by an air-volume switch 9. A switch 21 switches between a different resistor 20 and the resistor 18 connected in series. When the resistor 20 is selected, if the resistance R4 is made smaller than the resistance R3 of the resistor 18, the air volume is increased and if the resistance R4 is made larger than the resistance R3, the air volume is decreased and hence the resistance of the R4 is set according to an object. |
