AIR CONDITIONER SYSTEM FOR VEHICLE

摘要

PURPOSE: An air conditioning device for a vehicle is provided to prevent the adhesion of a condenser while driving dehumidifying performance and heating performance and use an existing vehicle cooling module. CONSTITUTION: An air conditioning device for a vehicle comprises a compressor(110), an indoor heat exchanger(120), an evaporator(130), a first three way valve(141), a second three way valve(161), a third coolant flow passage(160), a fourth coolant flow passage(170), a fifth coolant flow passage(180), and a first expansion valve(151). Coolant exhausted through the compressor supplies hot air to the indoor room by being condensed the first three way valve while dehumidifying heating operation. The coolant exhausted through the third coolant passage and expanded through the first expansion valve dehumidifies the air flowed in the vehicle by being flowed in the evaporator. The coolant passed through the evaporator is restored to the compressor through the fourth coolant passage.