Historical experience of automobile air conditioning

Automobile air conditioner refers to a device that regulates the air quality in the automobile seat compartment. No matter how the weather outside the car changes, it can keep the humidity, temperature, flow rate and cleanliness in the car within the comfort range of the driver.
The most primitive car air conditioner is only window ventilation. The earliest automobile air conditioning device began in 1927. It is only composed of heater, ventilation device and air filter, and can only heat the car room. To be exact, the history of automotive air conditioning should start with the application of refrigeration technology in vehicles. In the late 1930s, several buses in the United States were equipped with air-conditioning devices using refrigeration technology. It was not until the 1960s that automotive air conditioning using refrigeration technology began to be popularized gradually. Since then, people's interest in automotive air conditioning has increased year by year, automotive air conditioning technology is becoming more and more perfect, and the functions are becoming more and more comprehensive.