Industry

Misunderstandings in the use of automotive air conditioners

2024-10-29     Page View:

1. The lower the temperature, the better


Someone turned the air-conditioning refrigeration button to the bottom in order to keep cool. It seemed that they felt very cool and comfortable. But this will have an impact on our own health. When people suddenly change from a hot environment to a very cold environment, the endocrine system of the body cannot be adjusted immediately, so they will get sick easily, such as arthritis, cold, etc.


And when the temperature is too low, it will also cause physical discomfort, such as physical pain, chills, headache, abdominal pain and other symptoms. In addition, if you have old people or children in your car, don't make it too cold. Under normal circumstances, the temperature in the compartment should be 8 ℃ -9 ℃ different from the outside temperature. Such a temperature difference will also make people feel most comfortable. Such a temperature difference will also make people feel most comfortable. It is now advocated that the indoor temperature of 26 ℃ is the most comfortable and healthy temperature, so it is advisable to set the air conditioner in the car at this temperature in summer.


2. Turn on the air conditioner right after getting in the car. The effect is not necessarily good


If the car is not parked in the basement, it will be hotter inside if it is baked by the sun outside. I believe your first reaction is to turn on the air conditioner and hope to cool down quickly. In fact, this cooling effect is not good, because the air in the car and in the air conditioning pipeline is also very hot in the sun for a long time. If you turn on the air conditioning at this time, the hot air from the air outlet will directly blow to you, making you feel more uncomfortable.


The correct way is to open the window (preferably the diagonal window) before getting on the car, so that the air inside the car can be discharged outside the car through convection; At the same time, turn on the air conditioner to blow out the hot air in the air conditioner pipe. It doesn't take long enough for 20-30s. At this time, close the window and turn on the air conditioner for refrigeration. The effect will be very good. In order to verify the difference between the two, I also did experiments.


The vehicle is exposed to the sun at noon. The temperature inside the vehicle is 44.7 degrees Celsius. The air conditioner is directly turned on and the ventilation is first and then refrigeration is used (the same with internal circulation). See how long it takes to reach the 25 degrees Celsius I require.


The result came out. It took about 3 minutes and 58 seconds to reach 25 ℃ by ventilation and then refrigeration; The method of directly turning on the air conditioner takes about 5 minutes and 24 seconds. It can be seen that turning on the air conditioner directly on the car can not play a good role in rapid cooling.


3. When the air conditioner is turned on, the wind direction should be inclined upward


Some people don't pay much attention to it. After the air conditioner is turned on, it's not appropriate to let the wind blow at will, or even choose the mode of the windshield, because the high temperature of the windshield glass will offset most of the cooling effect.


The correct way is to choose the inclined top blowing, so as to use the law of hot air rising and cold air falling to cool the interior of the vehicle from top to bottom


4. Turn off the air conditioner before arriving at the destination


Turning on the air conditioner and listening to the CD makes me feel so comfortable. After arriving at the destination, I turned off the fire and remembered to turn off the air conditioner. I believe this is the habit of many car owners. The consequence of doing so is that there will be moist gas or water in the air conditioning system management and the air conditioning evaporation box, which will lead to a large number of mold breeding in the air conditioning, resulting in peculiar smell. Moreover, when you start the vehicle the next day, you will start it with the air conditioner and the load, so the high load will cause damage to relevant parts.


The correct way is to turn off the cooling of the air conditioner and turn it on to the blowing mode when you drive with the air conditioner on, one kilometer or a few minutes before you arrive at the destination and park. This will make the temperature in the air conditioning pipeline and the evaporation box rise, eliminate the temperature difference with the outside world, and take away the moisture. This can keep the air conditioning system relatively dry and avoid the reproduction of mold, so as to avoid the generation of air conditioning odor.


5. Turn on the air conditioner properly when it rains


When it rains in summer, the outside of the car is wet and the inside is dry, which will make the windshield, rearview mirror and glass in the car foggy. At this time, we also need to use air conditioning.


The way to do this is to turn on the blowing and cooling switches in the car, so that the cold air will blow on the glass and the fog will dissipate quickly, and the effect will be quick and direct. This is because the cold air is blown onto the glass, forming a "cold film" on the glass surface to prevent carbon dioxide from condensing on the glass, which has the effect of defogging. One of the biggest drawbacks of this method is that people in the car may feel very cold. Just imagine that on a rainy day prone to fog, it is really hard to blow air-conditioning in the car! Blowing for a few minutes may turn off the air conditioner, and then the fog starts to hang on the glass and turn on the air conditioner... It is inconvenient to operate repeatedly and the temperature in the car will be very inappropriate. But the demister with air-conditioning refrigeration is the fastest, and the effect can be seen immediately.