US Patent 7261372 Seat air conditioner for vehicle

A seat air conditioner for a vehicle seat includes a blower unit which has a blower fan and an air discharge duct, a vibration isolation unit arranged between the blower unit and a cushion member of the seat, and an accordion duct which is arranged between the air discharge duct and an air passage defined in the cushion member. The blower unit is disposed at an opposite side to the cushion member with respect to seat spring members of the seat. Air blown by the blower fan flows toward a plurality of blowing-out openings formed at a surface cover member of the seat, through the air discharge duct, the accordion duct and the air passage formed in the cushion member.