1, the air conditioner evaporator of an automobile is generally installed under the dashboard of the passenger seat. The evaporation box of automobile air conditioner is installed in the heater, which is a large plastic part with air duct, evaporation box and warm water tank.
2. The evaporator is a heat exchanger.
High-pressure liquid refrigerant enters the evaporator through the expansion valve. Due to the atomization of the expansion valve, the liquid refrigerant becomes mist, and the mist refrigerant becomes gas at low pressure. In the process of conversion, it will absorb heat, so the evaporator is cool at this time, and after the wind passes, it will become cool air to achieve the purpose of refrigeration.