Air conditioner for vehicle

An air conditioner for a vehicle, comprising:

• an air conditioning case defining an air passage through which air flows to a vehicle compartment;
• and
• a heating heat exchanger configured to heat the air, the heating heat exchanger being arranged inside the air conditioning case, wherein
• the air passage includes:
• a warm-air passage in which the heating heat exchanger is arranged;
• a first cool-air passage in which cool air flows while bypassing the heating heat exchanger;
• an air mixing chamber located at a junction of warm-air passage and the first cool-air passage such that a warm air flowing from the heating heat exchanger and the cool air flowing from the first cool-air passage are mixed to obtain conditioned air having a desired temperature;
• a plurality of outlet portions provided at a downstream portion of the air conditioning case downstream of the air mixing chamber in an air flow such that the conditioned air is blown from the plurality of outlet portions to a plurality of regions in the vehicle compartment;
• a cool-air bypass passage configured to introduce a part of the cool air flowing in the first cool-air passage while bypassing the heater core into a predetermined area, which is opposite to the first cool-air passage with respect to the air mixing chamber, the cool-air bypass passage extending across the air mixing chamber;
• and
• a second cool-air passage communicating with the cool-air bypass passage, the second cool-air passage being provided at the predetermined area,
• the second cool-air passage is arranged to change a flowing direction of the cool air from the cool-air bypass passage to an opposite direction with respect to a flowing direction of the cool air from the first cool-air passage and to introduce the cool air toward the air mixing chamber, and
• the first cool-air passage and the second cool-air, passage are arranged such that the warm air flowing from the heating heat exchanger to the air mixing chamber is inserted between the cool air from the first cool-air passage and the cool air from the second cool-air passage, from two sides of the cool air.