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How to distinguish between good and bad DC cooling fans?

　　 Many people don’t know how to choose a DC cooling fan. They usually find a few manufacturers to test if they can work normally, and then choose a relatively low price. Ruiapple Electronics tells you how to distinguish the quality of DC cooling fans?

　　 Look at the current: the same speed, the same voltage, the same air volume. Small current DC cooling fan is better. The smaller the current, the smaller the fan loss, that is, the lower the power consumption. The main reason is that the product has strong electrical conductivity, good motor enameled wire loss, high copper content and high activity varnish.

　　 Listen to the noise: DC cooling fans with the same speed, the same voltage and lower noise are better. Low noise is mainly related to the fan blades, bearings, oil, assembly structure, etc. The better the shape design of the fan blades, the greater the air volume, the lower the noise; the higher the bearing accuracy, the smaller the friction with the shaft core, and the more accurate the size matching. Of course, the lower the noise; the lower the noise, the smaller the friction, the longer the life of the bearing and shaft core, and the longer the life of the DC fan.

　　Vibration measurement: A fan of the same specification and speed is better than a DC cooling fan with less vibration. The DC cooling fan is a high-speed machine and must have vibration. No manufacturer can guarantee that there is no vibration. The smaller the vibration, the better the explanation. The smaller the vibration, the smoother the fan runs, the smaller the loss of bearings and shaft cores, and the volatilization or rolling of oil will reduce wear and, of course, the life will be longer.

　 Through the above introduction, everyone has a certain understanding of how to distinguish between good and bad DC cooling fans. If you need to know more about cooling fans or need Ruiapple electronic fans, you can contact Ruiapple Electronics.