It is well known that when a computer is bought for a long time, there is a "buzz" when it is turned on.Many people ask why the fan is quiet when you buy it. After using it for a long time, the sound of the fan will become louder or different.Next, let's analyze the factors that influence the sound of the fan in the computer case.
We know that a cooling fan at run time, the blade is do circular motion, its rate generally around 1500-3000 - RPM, the 1500-3000 revolutions per minute, blades and tangent air volume, air also produce some noise at the same time, the size of the resulting noise and the structure of the blades and the speed of the fan blades, blades of different Angle noise is different, when the air volume can meet the cooling demand, choose a cooling fan can reduce noise of low speed.Blades affect the fan noise is another factor is the size of a blade of balance, when blades balance degree is high, the impact of blades do circular motion, when poor balance, the blades will be slightly shaking, with its amplitude increases with the increase of fan is used, and the noise will increase.The balance of the cooling fan blade can be adjusted by a professional balance instrument.The picture shows the balance meter.
Other factors influencing fan noise include: poor concentricity of fan bearing group, abnormal sound of ball bearing fan, low oil content of oil bearing fan, and foreign matter inside the fan.
To sum up, we know that the main factors influencing the noise of the fan in the computer case are: the structure of the fan itself and its later use.If the former needs to change, it needs to find the supplier to replace the parts.The latter solution is to pay attention to fan maintenance details.
Shenzhen fengwang electronics is a professional manufacturer of cooling fan research and development.The balance of fan blade is adjusted by using balance adjustment instrument.Incoming material IQC inspection is strict;There is a quiet room in the production process, and the quality staff will collect all the products.Before shipment, OQC will carry out sampling inspection on the products and strictly check the quality of the cooling fan.Our products are popular in medical equipment, industrial control equipment, new energy and other industries. You are welcome to contact us. We will provide you with the most cost-effective cooling solutions.
