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Time：2021-11-19Views：0
The DC fan is unfamiliar and familiar to everyone. The unfamiliar is because of its name, and the familiarity is because we often come into contact with it. Every time we take apart old equipment or repair household appliances, we will see it. Then Below, Chenggao DC fan manufacturer will explain the causes and treatment methods of micro DC fan noise.
Before that, we must first understand what factors are related to the noise of the micro DC fan.
1. Rotation speed. The faster the speed of the DC fan, the larger the fan, and of course the greater the noise
2. Bearings. The bearings of DC fans are simply divided into two types, one is oil-containing and the other is ball. Under normal circumstances, ball-bearing fans are more noisy than oil-bearing fans.
3. Air flow. During the rotation of the fan blades, they will be subject to resistance in the air. The faster the rotation, the larger the area of the fan blades and the greater the resistance, so the noise will be greater.
4, friction. If the fan is used for a long time, the fan will be out of frame, vibrate, and the center of gravity will be unstable. This will cause collision or friction between the fan blades and the fan shell, which will cause noise.
Micro DC fan noise processing method. 1. Choose the suitable fan specifications and parameters according to your actual situation, and don't blindly pursue the speed. 2. Regularly clean up the dust and refuel the fans to reduce the friction between the fans. 3. Choose high-quality products, preferably the brand, because the brand is guaranteed by quality and after-sales. Don't be greedy for cheap. 4. Put sponge, rubber or cotton cloth between the fan and the fixed end to reduce the noise caused by the vibration caused by the high-speed rotation of the fan. There are many other methods, which I won't go into here.
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