Automobile air conditioner is an important branch of air conditioning engineering, which is the application of air conditioning technology in automobile. Its purpose is to create a comfortable air environment inside the vehicle, so as to ensure the health, comfort, safe driving and efficient work of drivers and passengers.Automobile air conditioner has become the standard configuration of contemporary automobiles. The continuous improvement of automobile air conditioner is also one of the important means to improve the competitiveness of automobile market.

China's car air conditioner started late, in the 1960s, the first imitation of the car air conditioner installed in the red flag car, the real start in the early 1980s.Especially in the past decade, with the rapid development of the domestic automobile industry, the domestic air conditioner industry has made great progress and has become a strong competitor of the international counterparts.

In the future, the development of new air-conditioning systems will bring about many changes, such as the improvement of engine efficiency, electrification, hybrid driving power and the change of air-conditioning system characteristics after the use of new parts.