The faster the cooling fan rotates, the better the cooling effect will be. However, after a fan is used for a period of time, it is found that its rotation speed is getting slower and slower, and the sound is still very loud. It feels like asthma. What is the reason and how to solve it?
First,
Cooling fanLong-term work at high temperatures
It could be that the lube has dried up.
Try to rotate the fan by hand. If there are signs of fretting or the rotation resistance is very large, it means that the fan is no problem, but the lubricating oil has dried up. Remove the fan at this time. Generally, there is a sticker on the reverse side. Remove it, and you can see the shaft of the fan, add some lubricating oil such as engine oil, and then rotate the fan several times by hand, I feel that there is no resistance or the resistance is very small, and then I can almost solve the problem by putting it back on.
Second, the cooling fan speed does not reach the normal speed required for the radiator to work
We can try to make some adjustments to the fan blades of the fan so that its speed can meet the power requirements of the radiator. This will not only solve the problem, but also save you the trouble of replacing the new device. You can see the fan shaft, add some lubricating oil such as engine oil, and then turn the fan several times more by hand. It feels that there is no resistance or the resistance is very small, and then it can almost solve the problem.
Third, do not pay attention to cleaning and maintenance
As the environment in which the cooling fan is located is dusty or has been used for a long time, and when we don't clean it up very much, it is very likely that the power supply of the cooling fan cannot rotate due to too much dust. This is mainly due to the increasing dust, which leads to more and more heat accumulation inside the cooling fan, resulting in poor heat dissipation inside the power supply, resulting in unstable power supply and unstable fan speed, usually pay attention to the maintenance of the cooling fan and clean it regularly.
The above is the sharing of knowledge of the classification of the cooling fan structure. Shenzhen Jiangshanlai Electronic Technology Co., Ltd. is a large-scale enterprise specializing in the customization, research and development, manufacturing, sales and service of DC brushless motors, DC cooling fans, DC brushless fans, DC bracket fans, pressurized cooling fans, micro cooling fans, DC blowers, and non-standard fans, DC fan wholesale manufacturers and DC fan suppliers. Products sell well in Guangdong, Shenzhen, Guangzhou, Dongguan, Fujian, Zhejiang, Jiangsu and other places.
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