The performance of the cooling fan - — Different sound
sounds only pure wind noise, noise is a kind of sound waves have all character of sound wave, and the sound is different, the fan operation, in addition to the wind, and other sound, There are two more voice) , fan transshipment may be due to the deformation of bearing or foreign body in it, and improper assembly collision or uneven motor winding coil, the cause is loose. Up and down the line with burrs are likely to cause different sound, you can determine the fan has a different sound. Sound detector and common methods of listening to the sounds. Wenling city tong chi auto air conditioning manufacturing co. , LTD. , a professional automation production equipment and high-quality raw materials to produce a cooling fan.