| 摘要 |
PURPOSE:To facilitate the assembly of post-assembly parts at a time of reconstruction to an 'auto' air conditioner by providing in parallel a voltage dividing means for motor-impressed-voltage and a control means for motor current land making it possible to choose between motor rotating speed number control by the voltage dividing means and that by the electric current control means. CONSTITUTION:When an 'auto' switch 21e is closed, a signal is inputted to a controller 24 and a power source relay 19 is closed. Together with this, switches 21a-21d are opened, and the rotation of a motor 7 is regulated by a device 24 controlling a power transistor 23. And when an H switch 21a is closed, switches 21b-21e are opened and the opening of a damper 10 alone is controlled. On the other hand, a short-circuit relay 22a is closed, and the motor 7, having received the whole of the voltage of a battery 17, rotates at the maximum rotating speed. By this constitution, switches and their kind can be effectively utilized and parts-assembly work at a time of reconstruction to an 'auto' air conditioner is facilitated. |
