Shenzhen Ruiapple electronic cooling fan manufacturer specialized wholesale cooling fan, miniature cooling fan, dc and ac fan. The following is the design principle of the miniature cooling fan for you by our technicians:
Miniature cooling fan impeller is calculated, to make the distance between the fan blades appears no order, presents a kind of "not equidistant" situation: why is it not like dc fan blades is equidistant? This is because of the "irregularity" of the rotating wind wheel and air, becoming "a piece" of wind, not just a sound on a certain voice. Noise is mainly divided into narrowband and wideband noise, because there is a narrow band noise which makes people pay attention and arouse people's antipathy. While the broadband noise is soft, so it sounds more pleasing to the ear, although it can't be eliminated, but it is relatively "listen", it is not so upset.
Micro cooling fan impeller is made of dynamic balance, just as the car wheels to do dynamic balance, cooling fan of wind also needs to do the work, in simple terms, is to keep wind turbines in the running state of balance, noise reduction, and extend the life of the fan.
