What is the refrigeration mode of automobile air conditioner?

The cooling method of automobile air conditioner is to turn on the fan, press the ac button and turn the knob on the left side of the automobile to the blue position. Automobile air conditioner consists of compressor, condenser, liquid storage dryer, expansion valve, evaporator and blower. The components are connected with high-pressure rubber pipes by copper pipes or aluminum pipes to form a closed system. When the refrigeration system works, the refrigerant circulates in this closed system in different states. The working principle of automobile air conditioning refrigeration is: 1. The low-temperature and low-pressure gaseous refrigerant is compressed by a compressor into a high-temperature and high-pressure gaseous refrigerant; 2. After passing through a condenser, it becomes a high-pressure medium-temperature liquid refrigerant; 3. The expansion valve changes the high-pressure and medium-temperature liquid refrigerant into low-temperature and low-pressure liquid; 4. Turn it into gas with an evaporator and evaporate it.