In cold winter (even in late autumn and early spring), the automobile heating system can provide heating for the automobile and increase the temperature inside the automobile. In winter, spring and autumn, when the air humidity is high and the temperature difference between the inside and outside of the car is large, frost and fog will form on the window glass, which will affect the driver's sight and is not conducive to driving safety. At this time, turning on the heating system can remove the frost and fog on the window glass. The heating system of a car can heat the air inside the car or suck the air inside the car from the outside, thus increasing the temperature inside the car. There are many kinds of automobile heating systems, which can be divided into hot water heating system, gas heating system and tail gas heating system according to different heat sources. At present, hot water heating system is mainly used for cars, and gas heating system is mainly used for large vehicles.
The refrigeration and heating principle of automobile air conditioner is very simple. When the automobile air conditioner is heating, the high-temperature coolant in the engine will pass through the warm air tank, and the wind from the blower will also pass through the warm air tank, and then the air conditioner outlet will blow out warm air. The warm air tank is actually a heat exchanger. If there is no warm air slot, the air conditioning outlet cannot blow warm air. When the automobile air conditioner is cooling, it is necessary to press the ac button, so that the compressor clutch will be engaged and the engine will drive the compressor to run. The compressor can continuously compress the refrigerant and deliver it to the evaporation box, and the refrigerant will expand and absorb heat in the evaporation box to cool the evaporation box. The cooling evaporation box can cool the wind from the blower, so that the air outlet of the automobile air conditioner can blow out cold air. (Photo/Text/Photo: Pacific Auto Network Chen Miaoling)