AIR CONDITIONER FOR VEHICLE

The present invention relates to an air conditioner for a vehicle. An objective of the present invention is to improve installation structures of a speaker and a microphone of an ANC device for reducing air conditioning noise, thereby improving attenuation efficiency of the air conditioning noise transmitted from an air conditioner case to the inside of a vehicle so as to improve ride comfort inside the vehicle. To this end, the present invention provides an air conditioner for a vehicle comprising: an air conditioning case; and a blower for drawing in internal and external air to blow the air into an internal air flow path in the air conditioning case, in which the air conditioner for a vehicle further comprises: at least one microphone installed on the internal air flow path on a downstream side of the blower to detect noise; and a speaker for outputting a reverse phase frequency opposite to a frequency phase of the noise detected by the microphone, wherein the speaker is installed at a front end portion of