The most critical factor for driving in summer is the air conditioning of the vehicle. In our investigation, we found that most car owners use the air conditioning in their cars incorrectly. Regarding this, health professionals

According to the analysis of the working principle of the car air conditioning, whether it is the hot air in winter or the cold air in summer, it will extract a large amount of moisture from the air inside the car and form

Hot drying and cold drying.  

From a medical perspective, many health problems caused by air conditioning are actually due to the presence of bacteria and other pathogens in the air conditioning circulation system

of ”Diseases caused by air conditioning in summer are quite common, all of which are related to the respiratory system. Doctors suggest that in summer, car owners should conduct a comprehensive inspection of their vehicles

Check and maintain, especially the compressor, condenser, and electrical circuits of the air conditioner, which need to be carefully inspected. After confirming that there are no problems, the air conditioning system should be disinfected and deodorized

Let the air inside the car stay fresh and clean.

resolvent:

Firstly, regularly inspect and maintain the car air conditioning system, and replace damaged parts in a timely manner.  

Typical fault analysis and solution (for reference only):

1. Regularly replace the air conditioning filter element.  

2. Insufficient refrigerant can cause the expansion valve to produce a whistling sound due to consumption or leakage. Identify the leakage point and repair it, then add refrigerant.

3. Excessive refrigerant, exceeding the specified value, increases the workload and produces abnormal noise. Excess refrigerant should be discharged to ensure that the pressure meets the regulations.

4. The compressor belt is loose or worn, tighten or replace it.

5. The compressor lacks cooling oil, which is affected by dry friction. The oil should be added to the specified value.  

6. The refrigeration system contains moisture, and the storage tank should be replaced. After vacuuming, the refrigerant should be refilled.

7. The compressor parts are worn, and the installation brackets or bolts are loose, which should be repaired or tightened.  

8. The electromagnetic clutch of the compressor slips, repair or replace it.

9. The high-voltage protection switch has malfunctioned, causing high pressure and resulting in compressor vibration. In this case, it should be repaired or replaced according to the situation.  

10. The fuse is blown and should be replaced. The circuit wire has fallen off and disconnected, and the circuit wire should be repaired.

Secondly, regularly sterilize and disinfect the air conditioning system pipes!

Operation method:

To clean and disinfect the air conditioning external circulation, specialized air conditioning cleaning agents can be purchased. Before disinfection, the food and tissues inside the car should be removed to avoid absorbing odors. Find the car

If necessary, open the engine hood of the car's external air inlet; Start the engine to idle and open the window; Set the AC gear of the air conditioner to ON and adjust the circulation gear to external circulation

Ring, fan turned to maximum; Inject air conditioning cleaning agent into the position with the strongest suction force at the exterior air duct of the car; The cleaning agent will flow towards the evaporator to clean the adsorbed particles on the evaporator

Mold and dust; After full injection, continue to rotate the fan for 10 to 15 minutes; After 10 minutes, the dirty liquid is discharged from the drainage pipe outside the car, and clean air is sent out from the air conditioning outlet.

For cleaning the internal circulation system of the air conditioner, a dedicated disinfection canister can be purchased. Cycle the air conditioner to maximum airflow, open the smoke canister and place it under the passenger seat, then close the door

Window. After waiting for 10 to 15 minutes, discard the smoking canister and open the doors and windows for ventilation.

When disinfecting, do not sit in the car, take out food and supplies from the car, and wear gloves when discarding disinfection cans and spray cans.

Note: Air conditioner cleaning agent can be divided into foam and gas. Please choose gas type cleaning agent, because foam cleaning agent is easy to cause indication or circuit formation on the instrument panel

Damaged, please pay attention to safety during operation!

Thirdly, cultivate good habits of operating car air conditioning

When the car is exposed to the scorching sun, do not immediately turn on the air conditioning. Instead, open the windows to release the accumulated heat inside the car. After the heat dissipates, close the car window and

Then open the air door to the maximum and adjust the temperature to the lowest. When the temperature inside the car reaches a normal and comfortable state, immediately close the air door to achieve rapid cooling.

In rainy or humid weather during summer, first turn on the air conditioning, press the defogging button, and drive in fresh air mode until the condensation disappears. Because of the air conditioning

After cooling and drying, the air in the car can be heated up again, which can absorb more moisture. Therefore, when the car air conditioning is turned on, car owners can quickly have a clear view.

The large airflow inside the car can make the air inside dry, and this phenomenon depends on the adjustment of the ventilation opening and the setting of the air damper. In order to maintain a comfortable environment in summer,

The ideal damper setting should be selected at low temperatures to reduce airflow and thus minimize convection.

The ideal temperature inside a car in summer should be between 20 ℃ and 24 ℃, with a suitable temperature difference of around 6 ℃ between the inside and outside of the car. Therefore, for the sake of physical health and driving safety,

The temperature inside the car should not differ too much from the outdoor temperature. If the temperature is too low, it is difficult for the human body to adapt and can easily lead to diseases such as colds and arthritis. If the outdoor temperature reaches

Above 30 ℃, the temperature inside the car should be controlled to around 25 ℃.