| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle capable of suppressing generation of noise in a unit housing by air flowing-in from a blower. SOLUTION: By providing a reflection surface 60A for reflecting a pressure wave transmitted from an air-feeding part 22 toward an opening part 52c on an inlet flow passage part 52 of the unit housing 50H, the pressure wave transmitted from the air-feeding part 22 is avoided from being reflected/returned to the air-feeding part 22 side. Thereby, in the unit housing 50H, for example, by variation of a cross section area of a flow passage in a diffuser part 51, even if pressure variation is generated caused by peeling off or the like from an inner wall surface of the diffuser part 51 on the flow of air fed from an air-feeding unit 20, interference by reflection of the pressure wave is prevented from being generated and generation of noise caused by the variation of the pressure is suppressed. COPYRIGHT: (C)2010,JPO&INPIT
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