| 摘要 |
PURPOSE:To adjust temperature independently in a front seat and a back seat in an air conditioner with two air blow-off ports in the front and the back seat by controlling numbers of revolutions of fans respectively provided on an air intake port, front seat side and back seat side air blow-off ports. CONSTITUTION:In an air conditioner, the air sucked into it by the first fan 5 is adjusted to a fixed temperature through a cooling unit 11 and a heater core 12, and then blown off from the air blow-off port 3 on the front seat side, while the air sucked by the second fan 7 is blown off from the air blow-off port 4 on the rear seat side. At this stage, a function generator 38 to generate a voltage of the function of the voltage added to a drive circuit 20 through a control switch 29, that is, a revolution number signal of the second fan 7. The output signal of this function generator 38 is applied to an adder 39 as a revolution number control means to control the number of revolutions of the first fan, and added to the voltage supplied through a control switch 21 to be supplied to a drive circuit 9 of the first motor 6. |
