Now the hot air of ordinary cars comes out like this. ? When you turn the air conditioner switch to heating, you are also turning an electronic valve, which controls the car coolant. ? A pipe in the automobile cooling system is in the through train and enters from the position of the automobile firewall. There is a valve outside the firewall, as I mentioned earlier. The greater the opening angle of the valve, the more hot water comes in, and the hotter the car is.
Behind the dashboard, hidden inside, there is a radiator that is the same as the radiator outside the car, but smaller, and there is a small water tank. The air-conditioning fan blows this radiator in the car, and hot air is blown into the car.
The water flows through the radiator and then flows back to the engine to form a cycle.
Of course, advanced cars can exhaust hot air through the compressor, which is more advanced than ordinary car models.
Sometimes if the water temperature in the car is too high, hot air can be turned on to help the car dissipate heat. ?
Cold air is produced by the compressor in the engine compartment, and the process is just like the refrigeration principle of air conditioning at home. But the difference is that the compressor of the automobile air conditioner is driven by the pulley of the automobile. ? 1before 997, cars used R 12 refrigerant, which is Freon. ? After 1997, all cars use R 134a refrigerant, which is environmentally friendly. I added it to the car myself. ? In addition to the compressor, there are also circulating pipes, drying tanks and so on. ? Refrigeration principle, you can check the principle of air conditioning.
Is my answer okay? ?
(The green arrow below is the radiator. )