What is the Function of a Car Air Conditioner?

[DelGarrett]

Car air conditioners primarily function in temperature regulation, humidity regulation, and airflow regulation. Temperature Regulation: This is the main function of a car air conditioner. In summer, the cooling system generates cold air to lower the temperature inside the cabin; in winter, except for large commercial vehicles that use independent combustion heaters for warmth, most other vehicles utilize residual heat from the engine for heating. Humidity Regulation: Humidity significantly affects the thermal comfort of passengers inside the car. The humidity inside the cabin should generally be maintained between 30% and 70%. Standard car air conditioners do not have the capability to regulate cabin humidity; this can only be achieved through ventilation systems or advanced luxury cars equipped with integrated heating and cooling air conditioners. Airflow Regulation: The speed and direction of airflow greatly influence passenger comfort. If the air is blowing directly, the speed should be limited to a certain range when the temperature is appropriate. The airflow speed can be adjusted based on passengers' living environment, age, health condition, and personal preferences regarding temperature.