What is the function of the AC in a car?

[VanValerie]

The AC in a car refers to the air conditioning system's cooling function. When this button is pressed, the compressor starts working, and the air blown out by the blower becomes cold. The car air conditioning system consists not only of a compressor but also includes a condenser, evaporator, and expansion valve. The compressor is one of the main components of the refrigeration system, responsible for compressing and transporting refrigerant vapor. Car air conditioning refers to the air conditioning device installed in vehicles, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. Different types of air conditioning systems have varying layouts, and currently, integrated heating and cooling systems are widely used in passenger cars.