AIR CONDITIONER FOR VEHICLE

PURPOSE:To enable ventilation and a change of air with enough wind quantity by providing a rear ventilator which conducts ventilation to a rear seat or exhaust from the inside of a car room, and operating the rear ventilator with solar batteries as a source of electricity when a heat load within the car room has become more than a predetermined value. CONSTITUTION:A front ventilating passage mechanism 4 is provided at the front portion of the car room 2 of a vehicle, and at the rear portion, a rear ventilating passage mechanism 5 is provided at the lower part of a rear shelf 13 arranged in the back of a rear seat. Also, solar batteries 8 are provided at the roof portion 7 of a car body 1, and an output which is in accordance with an insolation quantity received at its light receiving surface portion, is generated, and its output electric power can be supplied to the rear ventilating passage mechanism 5. The rear ventilating passage mechanism 5 is constituted with an internal air take-in opening 17 facing on the inside of the car room 2 and an air discharge opening 18 and a change of air opening 19, which are provided at a ventilating passage portion 20, and a rear blower fan 22 and a passage changeover door 26, which are provided at the inside. And control is made so that the rear blower fan 22 may be driven with solar batteries 8 as a source of electricity when a car room inside temperature, that is to say, heat load is more than a predetermined value.