【The owner's family car knowledge】In cold weather, air conditioning and warm air have become indispensable in our daily car life. Especially in the recent cold air activity in my country, the southern area has been covered by rain and snow, and the sky is difficult to clear. Previously, we conducted several tests on the doubts about the use of the air-conditioning heater, but we did not make a relatively systematic introduction to how the air-conditioning heater should be used, and the working principle of the vehicle air-conditioning, and the topics we are going to talk about today are these. .
When it comes to how to use air-conditioning heaters, I believe that many netizens will disdain that there is nothing to say, but a closer inspection will find that many car owners are not clear enough on the use of air-conditioning heaters. It seems that these most basic operations are still It is necessary to come up and talk about it.
Regarding the working principle of vehicle air conditioning, it is still a blind spot for most car owners, and they know little about it. Today, we hope that everyone can understand the working principle of air conditioning to facilitate their future car life. Next, let's start with the working principle of vehicle air conditioning.
●Working principle of car air
【The owner's family car knowledge】In cold weather, air conditioning and warm air have become indispensable in our daily car life. Especially in the recent cold air activity in my country, the southern area has been covered by rain and snow, and the sky is difficult to clear. Previously, we conducted several tests on the doubts about the use of the air-conditioning heater, but we did not make a relatively systematic introduction to how the air-conditioning heater should be used, and the working principle of the vehicle air-conditioning, and the topics we are going to talk about today are these. .
When it comes to how to use air-conditioning heaters, I believe that many netizens will disdain that there is nothing to say, but a closer inspection will find that many car owners are not clear enough on the use of air-conditioning heaters. It seems that these most basic operations are still It is necessary to come up and talk about it.
Regarding the working principle of vehicle air conditioning, it is still a blind spot for most car owners, and they know little about it. Today, we hope that everyone can understand the working principle of air conditioning to facilitate their future car life. Next, let's start with the working principle of vehicle air conditioning.
●Working principle of car air conditioner
The air-conditioning system of a car is generally composed of compressors, condensers, liquid storage dryers, expansion valves, evaporating boxes, air-conditioning pipes, and electronically controlled clutches. Among them, the refrigerant in automobile air conditioners is generally R134a, which continuously circulates among the various parts of the air conditioner, and uses the principle of absorbing a large amount of heat energy to absorb a large amount of heat energy by using the momentary rapid expansion of its compression and release.
Nowadays, models on the market generally use non-independent air conditioners. When we press the A/C button, the electromagnetic clutch is energized, and the engine belt is attracted to the suction cup by the magnetic force of the electromagnetic coil, thereby driving the air conditioner compressor to operate.
After the compressor starts to work, the low-temperature and low-pressure gaseous refrigerant from the evaporator flows through the compressor to become a high-temperature and high-pressure gaseous refrigerant, then passes through the condenser's radiator tube to form a high-temperature and high-pressure liquid, and then passes through the receiver dryer for dehumidification Drying, as the air-conditioning pipeline widens when it flows to the expansion valve, the pressure becomes lower, the refrigerant becomes a low-temperature and low-pressure liquid, and the refrigerant evaporates when encountering a low-pressure environment and absorbs a large amount of heat energy. The air in the cabin continues to flow through the evaporator, and the temperature in the cabin decreases and the humidity also decreases. After the liquid refrigerant flows through the evaporator box, it becomes a low-pressure gas again, and is sucked into the compressor again for the next cycle.
The working principle of the car air conditioner we introduced above is mainly for its refrigeration, and the heating of the car air conditioner has nothing to do with A/C, but comes from the heat emitted by the warm water tank (coolant), which keeps the engine in operation. The large amount of heat generated is recycled and radiated to the cabin, so as to achieve the purpose of air conditioning and heating.
