First, the principle of air conditioning fan
1 is an electric fan with water cooling (ice) device. Single-phase shaded pole asynchronous motor or single-phase permanent magnet synchronous motor drives the water curtain to move up and down slowly and roll, and the fan driven by single-phase capacitor motor blows out cold air with a certain humidity around the water curtain.
2, because there is a certain humidity, it also has the effect of purifying the air. The other is to install a water pump in the air conditioning fan, in which the water pump can cool the circulating air and blow out cold air below room temperature. There is no compressor and freon for air conditioning fan refrigeration, and a built-in water pump keeps water circulating in the machine to cool the surrounding air. No matter what type of air conditioning fan, its actual cooling effect is the same.
3. The circulating water pump continuously pumps out the water in the water tank and sprays it evenly on the evaporation filter layer through the water distribution system. Outdoor hot air enters the evaporative cooling medium and fully exchanges heat with water in the evaporative cooling medium CELdek (a honeycomb filter layer made of a special material, a Swedish high-tech patented product). The cool and clean air cooled by water evaporation is pressurized by a low-noise fan, so that the indoor hot air is discharged to the outside, thus realizing indoor refrigeration.
Second, how to buy air-conditioning fans
1, look at the appearance: first, check whether the product packaging of the air conditioning fan is complete and whether there are any traces of bumping and soaking; In addition, we should also pay attention to check whether the product is marked with important information such as product brand, product model, manufacturer's name and address, and factory date. It depends on whether the manufacturer, address and telephone number of the goods are complete; Check whether the three certificates are complete (certificate of conformity, warranty card and instruction manual); Electrical products must have the Great Wall Electrical Safety Mark, otherwise they are unqualified products.
2, look at the workmanship: high-quality air-conditioning fans have the characteristics of exquisite materials, meticulous workmanship and smooth modeling. Careful observation of the workmanship of air-conditioning fans can also completely avoid inferior products in small factories. It should also be noted that all qualified products have "Great Wall Electrical Safety Signs", otherwise they are unqualified or untested products. Whether the air volume at the air outlet is large enough, you should feel the obvious air volume when standing at a distance of 3 meters. If the air conditioning fan has the function of negative ion oxygen bar and photocatalyst material, it can dust, filter and purify indoor air, which is more in line with the requirements of health and environmental protection.
3. Look at the function: There are more and more air-conditioning fans on the market. I suggest you buy a product with practical and simple structure. Look at the function should pay attention to the following points: refrigeration capacity: spray cooling and ice crystal cooling are two mainstream cooling methods of air conditioning fans at present, it is recommended that you buy ice crystal cooling air conditioning fans; Air output: checking the air output is very simple-just turn on the air conditioning fan and stand 2.5 to 3 meters away and feel it. Purification ability: Now some air-conditioning fans have the function of photocatalyst or negative oxygen ions. It is recommended that families who have just finished decorating try it, but it should be noted that the effect is not obvious for houses with too large an area.
The above is the principle of air-conditioning fan introduced by Bian Xiao and how to choose an air-conditioning fan.