AIR CONDITIONING DEVICE FOR AUTOMOBILE

PURPOSE:To enhance operability and comfortability, by automatically swinging a blow direction changing blade when a vent damper is opened and difference between compartment set temperature and compartment temperature is less than a fixed temperature difference. CONSTITUTION:A blow direction changing blade 27 installed at a front blow opening 14a is swingable in a right and left direction through connecting levers 26a and 26b by a driven motor 18, and the drive motor 18 is controlled by an electronic control section 19. Under a condition where opening of a vent damper 9 is detected by a mode position detecting device 17, the electronic control device 19 determines difference between compartment temperature Ta detected by a compartment temperature detecting device 28 and compartment set temperature T0 set by a temperature control lever 23, and when the difference becomes lower than a fixed temperatue difference (b), the control section 19 feeds a signal to a drive motor 18 so as to swing the blow direction changing blade 27. With this arrangement, intricacy of manual operation may be eliminated, and comfortableness control in the compartment may be achieved.