To reduce the noise from the cooling fan, its application to solve

In the production of each cooling fans, we are all in view of the requirements in terms of design, for each product, without any accessories is not enough, for some companies, are crucial.

when use, if a cooling fan noise, then its value is not important, but it's about the size of the noise is to measure the quality of the product is one of the important indicators. The quality problem, of course, we in the noise, at the time of design, if a chassis between the outlet and the outlet range from 60% to 80% of all system impedance, the greater the additional air, noise is relatively high. Needed for the system impedance, the higher the cooling air flow is larger, so in order to reduced the noise is small.