Should the automobile air conditioner open internal circulation or external circulation in winter?

Should the automobile air conditioner open internal circulation or external circulation in winter?

Should the automobile air conditioner open internal circulation or external circulation in winter? Driving with trembling hands and feet in winter will affect driving safety, but the correct use of vehicles can better help us improve vehicle quality. Let's share whether the automobile air conditioner should open internal circulation or external circulation in winter.

Does the automobile air conditioner open internal circulation or external circulation in winter 1? First of all, we need to know what is the inner loop and what is the outer loop. As can be seen from the name, the external circulation state is to open the connecting airway of the car, and the air outside the car circulates with the air inside the car to help the car replenish the fresh air inside the car. The internal circulation state refers to the air circulation in the car, which plays a role in heat insulation in the car and can also prevent dust and harmful gases from entering the car.

In winter, due to the low temperature, the windows are closed when driving, fearing that a little cold air will flow into the car. However, the air does not flow for a long time, the oxygen content in the car decreases, and the car becomes more and more stuffy, and passengers will feel uncomfortable. So at this time, it is necessary to open the external circulation, circulate the air with the outside in time, and replace the air inside the car.

The external circulation blows in the cold air outside, which will pass through the heating plate, so even if it is cold outside, it will get warmer when it enters the car. You don't have to wander around because you are afraid of the cold. And it is easy to fog when the windows are closed for a long time in winter. At this time, external circulation can also be used to quickly defog.

Should the automobile air conditioner open internal circulation or external circulation 2 internal circulation in winter?

Internal circulation means that the air inside and outside the car is not exchanged circularly, so the advantage of internal circulation is that it can play a very good "heat preservation" effect, which can quickly achieve the effect of cooling in hot summer and keep warm in cold winter. In the case of bad environment outside the car (smog weather), internal circulation can also purify the air well.

Every coin has its two sides. Because the internal circulation does not exchange with the air outside the car, the longer the occupants stay in the car, the lower the oxygen content in the car, especially now that the car is so well sealed. This is why sometimes the air conditioner will feel chest tightness and face heat when it is turned on for a long time. Too low oxygen content can easily confuse people, and it is still quite dangerous.

extrinsic cycle

External circulation is naturally the opposite of internal circulation. Let the air inside and outside the car circulate. The advantage is that the oxygen content in the car can always be kept at a good level. The disadvantage is that it is not conducive to heat preservation. If the air quality outside is not good, it will be brought into the car. Although many cars now have the function of filtering pm2.5, most of them need to be filtered several times before cleaning, not once. Sometimes when we drive past a "pig truck", we can obviously smell "shit", which means you are driving an external circulation.

So how to use the inner ring and the outer ring?

If the weather is pleasant in spring or autumn, it is often unnecessary to turn on the air conditioner unless the environment outside the car is bad, such as dusty weather. At this time, the internal circulation can be turned on, when the weather is good, you can directly open the window for a ride, and if you run at high speed, you can turn on the external circulation.

If it is winter or summer, it is recommended to start the cycle for good heating or cooling within half an hour, and then start the external cycle of 10 minutes, which is more reasonable, but repeated operation like this will definitely make many drivers and friends feel trouble. Now many cars are equipped with automatic air conditioning function, which can help you adjust automatically, so don't say that automatic air conditioning is a chicken rib, but it is still necessary.

How many degrees should the air conditioner be set?

We found that many drivers and friends turn on the air conditioner very low in summer and very high in winter, which is definitely wrong. Turning on the air conditioner in this way not only increases fuel consumption, but also easily catches a cold, and turning on the air conditioner for a long time will also affect your health.

It is recommended that the air conditioning temperature be kept to a minimum in winter. Generally, the lowest temperature of automobile air conditioner can be adjusted to about 18℃. Don't turn the air conditioner down too low in summer. It is suggested that the outdoor temperature should be controlled around 10℃. Moreover, when the air conditioner is turned on in winter, it should be blown down, because the hot air is rising. When the air conditioner is turned on in summer, the air outlet is blown up, and the temperature inside the car can reach the set temperature faster.

Do you want to turn on the air conditioner (compressor switch) in winter?

The reason why turning on the air conditioner will increase fuel consumption is because the compressor is working. In summer, you must turn on the compressor for refrigeration. However, in winter, after the car runs for a period of time, the engine gets hot. Even if the compressor is not turned on, warm air will be blown through the engine.

Whether the automobile air conditioner should open internal circulation or external circulation in winter 3. First of all, we need to know what is the inner loop and what is the outer loop. As can be seen from the name, the external circulation state is to open the connecting airway of the car, and the air outside the car circulates with the air inside the car to help the car replenish the fresh air inside the car. The internal circulation state refers to the air circulation in the car, which plays a role in heat insulation in the car and can also prevent dust and harmful gases from entering the car.

The correct operation step should be to start the internal circulation first, and then carry out the external circulation after the car is warmed up. Warm air is turned on in winter, and the internal circulation can be the main one, supplemented by the external circulation, so that the internal and external circulation can be used alternately. Because the internal circulation of air conditioning is that the car closes the external warm air intake grille, completely closes the car and circulates the air inside the car. But after a long time, with the increase of temperature, the oxygen content will drop, and people will be prone to hypoxia in a closed environment for a long time. When the external circulation is turned on, fresh air can be replaced. After the external circulation is started, the air is heated by its own electric heating network.

How to quickly increase the temperature inside the car?

If you want to heat the car quickly in winter, you can start the engine first, warm up after driving for a certain distance, and start the internal circulation of warm air when the temperature pointer of the water thermometer reaches the middle position. The use of internal circulation can make the air conditioner quickly cool or heat the car. This will not only warm up the car quickly, but also will not increase the burden on the engine and save fuel.

Does it cost oil to turn on the warm air?

Some car owners will not turn on the heating because they are worried about the fuel cost. In fact, the normal opening of the heated air is oil-free, because the heat of the heated air in the car mainly comes from the water tank of the car, and the heat is introduced into the car through the blower, while the oil-consuming compressor does not enter the work. However, it should be noted that the heated air is not turned on correctly, and the fuel consumption is twice as high. For car owners who don't need heating, high fuel consumption is normal. Because some car owners like to turn on the A/C button of the air conditioner when turning on the warm air, they think that the warm air will come more timely. In fact, this idea is wrong. This practice will not affect the air outlet effect of the warm air, but will only lead to the operation of the compressor, and will also affect the acceleration performance of the engine, resulting in power loss. It seems strange that fuel consumption does not soar.