Patent ID: 7464560

Claim:
An air conditioner for an automobile, comprising: an interior air conditioner unit for forming an air passage; a blower for introducing air inside and outside a passenger compartment into said interior air conditioner unit; heat exchangers each disposed inside said interior air conditioner, for exchanging heat with said air; opening portions of said interior air conditioner unit for blowing out heat-exchanged air; blow-out ports each disposed inside the passenger compartment, for blowing out said heat-exchanged air; and airflow ducts for connecting and communicating said opening portions and said blow-out ports; wherein a heat generation film (H) is formed on at least a part of an inner surface of said air passage of said airflow ducts and heats said air flowing inside said airflow ducts; and protuberance portions for increasing a heat exchange area are formed inside said air passage, and said heat generation film (H) is disposed on an outer surface of said protuberance portions.