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[Cooling fan] How to distinguish noise?

by:TOCH     2021-02-26
[Cooling fan] How to distinguish noise? u003cbru003e u003cbru003e   Another external performance that measures the quality of a cooling fan is the level of noise. Imagine that if the cooling fan you bought is very noisy, even if the other performance of the cooling fan is very good, you are not at ease, because too much noise will greatly affect our mood of operating the computer. u003cbru003e   The noise of the cooling fan is usually related to the power of the fan. Generally, the greater the power, the faster the speed. At this time, a negative effect is also manifested, that is, noise. Therefore, when we buy a fan, we must listen to the noise of the cooling fan. If it is too large, then it is best not to buy it; of course, the noise of the cooling fan is not necessarily a problem of fan quality, but it may also be the lubrication effect of the fan shaft No, or the cooling fan has not been installed correctly. If this is the case, we can reposition the fan or add some lubricant to the fan shaft to ensure good lubrication. Nowadays, cooling fans have invested in some designs to reduce noise, such as changing the angle of the fan blades and increasing the lubrication and stability of the fan shaft. When we use lubricating oil to lubricate the bearings, it is easy to cause the machine to overheat and crash due to the short running time. In severe cases, it may burn out the movement. For this reason, many good brands of fans have begun to use ball bearings, which use many steel balls as a medium to reduce friction. This kind of ball cooling fan is characterized by high wind power, long life and low noise, but the cost is relatively high. Only high-dang fans can use it. For ordinary cooling fans, although they are called 'bearingsBut only the bush bearing, which is composed of a copper jacket and a steel shaft core, is completely different from the 'ball bearing' in terms of heat dissipation. In addition, the author also emphasizes that the rotation of the cooling fan should be stable, otherwise it is easy to produce noise, so when we buy the cooling fan, we must remember to check whether the cooling fan roller axis is loose. u003cbru003e u003cbru003e u003cbru003e u003cbru003e u003cbru003eRecommendation: dosense http://
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