PURPOSE: To perform the ventilation during parking economically and efficiently without dissipating a car battery by transferring an air conditioner unit to the outside air intake when a key switch is turned off and driving a blower with a solar cell.
CONSTITUTION: When an engine key switch 3 is turned off and a ventilation switch 6 is turned on, a control outside air stiching relay 8 is at a position shown in the figure, and the power supply is fed from a car battery 1 via a ventilation switch contact 6A. In this case, forced outside air switching relay 8A is at a position shown in the figure, thus a relay 9b is energized and closed until an inside/outside air transfer switch 11 is set to C position, and the power supply is fed to the terminal (a) of an inside/outside transfer servo motor 10 from the car battery 1. Therefore, the motor 10 sets the inside/outside air selection device 10A to an outside air intake position. A relay 4 is activated to a position shown in the figure, a blower 5 is cut off from the car battery 1, and the power supply from a solar cell 2 is fed via the ventilation switch 6.
HASHIMOTO HIDEKI
NAGANOMA MASANORI
| JPS5920717A | 1984-02-02 |