Vehicle air conditioner

An air conditioner for a vehicle, comprising:

• an air conditioning case having an air inlet for introducing air, air outlets for discharging the introduced air to the interior of the vehicle, and an air passage formed therein;
• a cooling heat exchanger and a heating heat exchanger disposed in the air passage of the air conditioning case to exchange heat with the air passing through the heat exchangers, the cooling heat exchanger and the heating heat exchanger being arranged sequentially,
• wherein the air passage comprises:
• a front seat air passage through which cold air or hot air is discharged toward a front seat of a vehicle;
• and a rear seat air passage through which cold air or hot air is discharged toward the rear seats of the vehicle,
• wherein the front seat air passage comprises a front seat cooling air passage and a front seat heating air passage, and
• wherein the rear seat air passage comprises a rear seat cooling air passage and a rear seat heating air passage,
• further comprising:
• a first mixing part in which the cold air of the front seat cooling air passage and the hot air of the front seat heating air passage are mixed;
• and
• a second mixing part in which the cold air of the rear seat cooling air passage and the hot air of the rear seat heating air passage are mixed.