Why is there only a little wind when the front exhaust volume is adjusted to the maximum when the rear exhaust outlet of the car is the same as decoration?

Now, except for some low-end models, most models are equipped with rear air outlets as standard, but many car owners have found a problem, that is, the rear air conditioning effect of our vehicles is average, whether it is cooling or heating, mainly because of the structural problems of air conditioning pipes. So in this issue, we will talk about why the rear air conditioning outlets of most models are relatively small. Why is the cooling or heating effect of air conditioning average?

Air conditioning blowing process 1, the above picture is the working principle diagram of the whole air conditioner. Let's take this picture as an example to analyze the working principle of air conditioning pipeline in detail. First of all, the position of 1 in the figure is the motor that controls the internal and external circulation of the air conditioner. When it is open, fresh outside air enters the cab, and when it is closed, it makes the air in the cab circulate.

2. Turn on the air conditioner, and the air conditioner fan starts blowing. These winds will be filtered by the air conditioning filter element, and then enter and pass through the evaporation box in the air conditioning pipeline. The biggest function of the evaporation box is to cool the air conditioning system. When we turn on the air conditioning switch, the evaporation box will start to cool the amount of air passing through. If the air conditioner switch is turned off, the natural wind will still pass through.

3. When the air volume passes through the evaporation box, will it face the second choice? Cold air or hot air, the second component to control cold and warm air is the No.2 damper motor. If the warm air tank is completely blocked, the air conditioner will blow out cold air or natural wind, and if it is completely opened, it will blow out hot air. But many times, drivers and passengers will feel uncomfortable when the vehicle is cooled, so many times the air conditioner will heat the air volume at the expense of cold air to reduce the humidity of the air conditioner.

3. The air volume passing through the air conditioning filter, evaporation box and warm air box will reach the air outlet in the cab of the vehicle along the air conditioning pipeline, thus cooling or heating.

The reason why the air volume of the rear air conditioner is small is that the air duct of the rear air outlet is too long, and the air volume is obviously attenuated during transportation, resulting in the feeling that the air volume of the rear air conditioner is smaller than that of the front row.

Reasons for the decrease of air volume in air conditioning

1, check the air conditioning filter. The main reason why the air volume at the outlet of most air conditioners is getting smaller and smaller is that the air conditioning filter screen has not been replaced for a long time, resulting in smaller and smaller air intake.

The warm air tank is too dirty. If the air-conditioning filter element is not replaced for a long time, the evaporation box in the air-conditioning system will become dirtier and dirtier. Dirty air conditioning filter will also affect the air output of air conditioning, and will also cause the growth of bacteria, thus reducing the air quality in the cab.

3. The air conditioning pipeline is damaged and leaking. As we all know, the working power supply of our blower is online. Once there is leakage in the process of conveying air volume, it will inevitably affect the air volume of each outlet.

4. The air conditioner blows at too many angles, resulting in scattered air volume and insufficient concentration.

The refrigeration effect of the air conditioner is poor 1, and the condenser of the air conditioner system is too dirty and needs to be cleaned.

2. The air conditioner filter is too dirty, which affects the passage of cold air.

3. The evaporation box is too dirty, which affects the passage of heating.

The heating effect of air conditioner becomes worse.

1. The water tank of the heater is blocked, which leads to uneven heating and affects the heating of the air conditioner. The blockage is mainly due to the long-term filling of tap water, which leads to the corrosion of the water tank.

2. The air conditioner filter is too dirty, which affects the passage of heating.

There are many factors that affect the air output of air conditioning. Air conditioning filter, heating tank, evaporation box, etc. It will affect the air output and filtration of the air conditioner, but the air output of the rear air conditioner is still due to the long wind, resulting in air loss.