The function of the car blower is to blow the cold air from the air conditioning evaporation tank or the hot air from the warm water tank into the car. There is nothing in the blower, just a motor.

Differences between automobile blower and air conditioner:

Turn on the blower (blowing switch of air conditioner). If the temperature is the minimum temperature, then:

The outside air temperature of the external circulation is the natural air temperature outside the vehicle, but it will be slightly higher, because the air inlet of the external circulation of the air conditioner is basically between the lower edge of the front windshield and the engine compartment, which will bring the temperature into the engine compartment;

In case of internal circulation, the temperature in the vehicle is blown out.

If the temperature is higher, the cooling water heat of the engine passes through the evaporator (small water tank radiator) in the air conditioning system, and the hot air adjusts the temperature of the air through the opening angle of the diaphragm with the natural air;

Turn on the air conditioner (A / C) switch. If the air conditioner is automatic, the blower will automatically start air supply; In case of manual switch, the air conditioning compressor will start to take off after the blower is turned on;

When a / C starts the compressor to work, cold air is blown out through the condenser exchange in the air conditioning system, but it is also subject to the temperature selection. The mixing ratio of natural air, evaporator hot air and condenser cold air is controlled through the partition in the system to meet the requirements of temperature;

Therefore, when the windows of wet vehicles are foggy in rainy seasons and rainy days, a / C can be turned on, the air supply mode can be selected to blow the windows, and the condenser can be used for dehumidification and defogging.