I forgot to turn on the internal circulation during heavy rain and drove with the air conditioner on. Will the car be damaged?

There are 5 reasons why the car cannot be driven:

The car cannot be driven when the wind blows. The wind can easily blow sand and scratch the car body paint. Strong winds can also cause the car body structure to deform, affecting the performance. The condition of an heirloom.

When the car is closed in rain or snow, you need to use the wiper, which can easily cause marks on the glass. Heavy rain can also cause damage to the outer surface of the car, affecting the quality of the car.

Do not drive it in bright sunlight. There are ultraviolet rays in the sun, which are not good for car paint. Once the air conditioner is turned on, it will increase the engine's compliance and affect the life of the entire vehicle.

It won’t open during thunder. Thunder can easily cause damage to the electrical appliances in the car. The car is also alive and may scare him, causing abnormal control and affecting safety.

Do not drive with more than two people, which is not good for shock absorption. According to the law of conservation of energy, it will also cause the car body to deform.

The experience of those who have been there, please remember...

After buying a car, it is recommended to put a film on the whole body of the car, plate the wheels with gold, and then seal the whole car with plastic wrap. It’s best to ask a few more people to carry you while driving. This way you won’t waste fuel and won’t damage the car [Eureka moment] Answer without joking · "External circulation mode" will not allow water to enter

Car The air intake mode of the air conditioning system is divided into internal and external circulation. Many drivers have the following doubts about external circulation.

It seems that there are always some concerns about the pipelines connecting the vehicle with the outside. If these problems occur, it will really damage the car; however, such questions are often answered jokingly, and the content is mostly about supplying the car with the car. Get up like this. In fact, I believe that most of these respondents do not know its structural characteristics, and they are just half a bucket of water. Let's discuss it with an objective communication attitude. First, look at a picture.

Where is the external circulation air inlet of the car?

Careful drivers will find that there is an air inlet on the lower edge of the plastic trim panel of the front gear, but it is usually hidden under the trim panel; the air inlet does not face upward but downward. Design is the most scientific. Because facing upward will be covered by rain and snow and water will enter. Only facing downward can prevent water from entering. The airflow can still enter the pipe normally in the engine compartment. The key is to achieve sufficient cleaning.

Because most vehicles have "air filters" in their external circulation, the air entering the ducts will be filtered; some vehicles use PM2.5 grade paper filters, which can be as high as The level of masks is quite good. Moreover, the upper baffle can block rainwater, and it can be discharged through the drainage hole of the filter box without a curved design. The evaporation box also has drainage holes; so the external circulation mode can ensure the air quality without water entering. On the contrary, there may be more problems in the inner circulation.

How does the inner loop loop?

Since internal circulation is of course carried out inside the vehicle, the concept of circulation refers to the flow of air; external circulation is to pump air from the outside into the car and squeeze out the turbid air in the car (through exhaust hole), in fact, the external circulation is equivalent to the "fresh air system" of the car.

The internal circulation uses a fan to blow the airflow in the car, and the air just "circles" in the small space in the car; cooling will pass through the evaporation box, and heating will of course go through the heater water tank. However, the process of cooling or heating the air will not change the various molecular contents of the air; the problem is that the ratio of carbon dioxide concentration in the air inhaled and exhaled will increase 133 times, and the concentration of this substance will increase. Seriously affect air quality.

Knowledge points:

1: Carbon dioxide itself is not toxic, accounting for 0.03% in the air; exhaled gas increases it 133 times , the increase in its concentration is equal to the proportional decrease in the number of oxygen molecules in the inhaled air. That is to say, the increase in CO2 concentration is like gradually increasing the altitude. Lowering the oxygen concentration can make people go from being lethargic to suffocating. Many automatic cars drive for hundreds of kilometers without consuming much energy, which is theoretically worse than fatigue driving. In many cases, the feeling of drowsiness is mainly caused by changes in the oxygen concentration of the air in the car.

2: To drive a car normally, you must learn to switch between the internal and external circulation modes. The cooling mode can use the internal circulation or the external circulation at will, because as long as it is started, it can start through the circulation of the refrigerant. Best cooling fix to survive. In the heating mode, during the car heating process after a cold start, the internal circulation can be used to quickly increase the temperature inside the car after the water temperature rises slightly; after the water temperature reaches the midline position, the external circulation can be turned on, because the water tank temperature at this time has reached about 100. There is no problem in instantly heating the low-temperature outside air.

Interpretation of the relationship between "internal and external circulation & heating and cooling systems" and whether the car will be damaged.

The inner circulation cannot exchange fresh air from the outside, so the use time should not be too long; if the air inlet of the outer circulation is facing down, there is no need to worry about water ingress. The air filter can also filter water vapor and impurities in the high-humidity air, so there is no Nothing to worry about. However, two issues of fuel consumption are generally concerned, and they are also related to whether the car will be damaged.

In fact, these operations have no impact. There is no problem in starting or shutting down the thermal air conditioning system first, because the car heater uses a water heating system, and the heat energy comes from the antifreeze coolant heated when the engine is running; after its temperature rises, adjust the temperature to the heater standard and turn on the fan. At this time, the heater water tank valve of the water system is opened, and the high-temperature antifreeze coolant flows into the water tank to heat it up. The fan blows the low-temperature air through the high-temperature water tank to heat it and then sends it into the car to become warm air. The core of this system is just the fan. .

Key point: Will there be any impact when the engine is turned off or started? The answer is absolutely no. Because the starter motor is used when starting the engine, the battery must supply power to the motor at its maximum discharge rate during the starting process. The standard can reach about 650 coulombs, which is about ten times the normal discharge standard. At this time, if power is supplied to other equipment in the vehicle at the same time, it can be said that almost 99% of the electronic configuration of the vehicle will be burned under the action of this ultra-high current.

Therefore, when starting the engine, other circuits of the vehicle must be cut off. This is why the center console button lights, instrument panel, vehicle engine, etc. will turn off during the starting process, and will light up again after the startup is completed. reason. Of course, the fan is no exception. Of course, there is no need to worry when starting it; but when stalling, the circuit must be cut off first. If the fan is powered off and stops, the engine stalls. What impact does this have?

The cold air system also does not need to worry about not shutting down when starting and shutting down. There is no need to go into details about the factors of the fan. The compressor also requires an electronic control system; even if the A/ C (compressor button) and windshield, the vehicle will not be cooled. Because the power that drives the compressor is the crankshaft of the engine, there will be no cooling if the engine is not started.

The A/C button only controls the electromagnetic clutch of the compressor. If the A/C is not turned on after starting the engine, the pulley of the compressor will be driven to idle. After turning it on, the electromagnetic clutch will pull the pulley to push the compressor. The piston operates (cooling starts).

During the startup process, the compressor is powered off for protection. After flameout, the compressor is powered off first. What is the difference between this and the heating system? So there is nothing to worry about. As for the frequent starting and stopping of the air conditioning system while driving, it will not be damaged. Doesn’t a vehicle with automatic engine start and stop also need to start the compressor at the same frequency? What's wrong with these vehicles?

—— The automobile air conditioning system is actually very simple. Once you understand its structural characteristics, you no longer need to worry.

Authorized release by Tianhe MCN

Welcome to forward messages for discussion, copyright protection rights reserved

Although cars are consumer goods, they are not fake. Must be cherished.

You actually drove out on a rainy day and turned on the air conditioner. The most unbearable thing is that it is still external circulation!

After the car is ignited, the engine starts to work. The piston reciprocates in the cylinder. The compressed oil heats up and explodes to do work. Power is output through the transmission system to make the car move forward. However, when pushing, the piston and the cylinder wall frequently rub, Even if it is lubricated by oil, there will still be friction. This friction will damage the engine. All friction in the world will cause damage to the friction participants. I believe you will understand.

The distance between air molecules is large enough, so under normal temperature and pressure, there is almost no molecular interaction between them, so the resistance to human movement in the air is much less than the resistance in water. At that time, Pan Jinlianlan Tang Wu Zhan , but Ximen Qing was exhausted. When it rains heavily, the air humidity is extremely high, and the resistance is between air and water. If you ignite the ignition and circulate it externally at this time, it will damage the car. I suggest you reduce the price of the car before others know that you have done this, and reduce the cost of the car. loss.

When I buy a car, I always drive it into my room. The air conditioner is on 365 days a year, the temperature is 26°C, the car is washed three times a day with pure water, and it is maintained 365 times a year.

Don't listen to them, they are all jokes. Turning on the external circulation of the air conditioner on rainy days will only make the air filter moist, which may cause the air filter to become moldy and smelly. Just blow dry it in time and you’ll be fine!

Hello, I am happy to answer this question.

People who ask this question are usually novice drivers. You take good care of a newly bought car. You can’t do anything to it or do anything to it. Take car washing as an example. When I first bought it, I washed it at least once a week and wiped it clean inside and out. Now, I don’t wash it for half a year. Once. I'm just counting on God to give me some rain.

Could you please stop being sarcastic and sarcastic about the subject of the question? A car is like a human being. When the internal circulation is turned on, it is like a person holding his breath. Once or twice, for a minute or two, it doesn't matter. After a long time, internal injuries will occur, just like these sprayers. If they don't spray for three days, they will be injured. I'm so suffocated

After reading so many answers, they are all sarcastic to car owners. Is it interesting? The car owner may really be a novice when asking questions, and may really not understand a lot of car knowledge, so asking such a question will definitely get a pertinent answer, not a cynicism.

In fact, it is normal to turn on the air conditioner and circulate it outside on rainy days. However, if you turn on the air conditioner on rainy days, the moisture or rainwater from outside will come in along the air inlet of the air conditioner filter, which will increase the humidity inside the car. In severe cases, the air conditioner filter element will become wet. If there is no other change, don't panic.

I paid for it, put the car in the 4S shop, and drove it home? Impossible, we can’t let the car go on the road, I feel sorry for the tires!