Vehicle air conditioning apparatus

An air conditioner for a vehicle, the air conditioner comprising:

• an air-conditioning case having an air passageway formed therein and a heat exchanger for cooling and a heat exchanger for heating disposed in the air passageway and configured to exchange heat with air passing through the air passageway, the air conditioner comprising:
• the air passageway having a front seat cold air passageway portion bypassing the heat exchanger for heating, a warm air passageway portion along the heat exchanger for heating, and a rear seat cold air passageway portion bypassing the heat exchanger for heating and separate from the front seat cold air passageway portion;
• a front seat temp door configured to adjust a degree of opening between the front seat cold air passageway portion and the warm air passageway portion;
• a first rear seat temp door arranged between the heat exchanger for cooling and the heat exchanger for heating to and configured to adjust a degree of opening of the warm air passageway portion;
• a second rear seat temp door arranged downstream of the heat exchanger for heating and configured to adjust a degree of opening between the warm air passageway portion and the rear seat cold air passageway portion;
• and
• a rear seat mode door arranged downstream of the second rear seat temp door to adjust a degree of opening of a rear seat air outlet and configured to open and close the rear seat cold air passageway portion;
• wherein the first rear seat temp door is aligned with the heat exchanger for heating in a direction of airflow toward the heat exchanger for heating and is moveable to different positions of coverage over the heat exchanger for heating, such that the first rear seat temp door is configured to close the warm air passageway portion along with the front seat temp door in a maximum cooling mode, and to partition air flowing from the heat exchanger for cooling toward the heat exchanger for heating in a maximum heating mode for smoothly guiding air that has passed through the heat exchanger for cooling toward the heat exchanger for heating in the warm air passageway portion.