Talking about how to choose a cooling fan? -- Jiangshan
Release time:
2021-04-13
With the improvement of machine automation, DC fans have been widely used in our lives, which has also acceleratedCooling fanThe main reason for the accelerated development of the industry. How can I choose a good DC fan from so many suppliers?
1. Bearing selection: Generally speaking, the bearings of cooling fans are divided into two categories, one is ball bearings, collectively referred to as ball bearings. There is also an oil bearing, called oil bearing. The difference between the two is that the ball bearing has a long service life and low noise, but the price is very expensive. The service life of oil-containing bearings is 1/4 shorter than that of ball bearings. It may produce some noise after more than one year of use, but the price is cheap.
2. Choose from the appearance: From the outer surface, the whole should be thicker, the material is good, the color is pure, and the edge of the frame leaf has no burrs. Look at the thickness of the fan blade, it is too thin and easy to break, and the outer frame will not be too deformed by hand.
3. Listen to the wind. When the speed is too high, there may be electromagnetic sound. If there are other sounds, the quality is not very good. If the speed of the DC fan is not very high, for example, the speed of the 7cm fan does not exceed 3500 r/min, the large amount of wind in the test indicates that the quality of the fan is average.
4. Look at the parameters on the outer package: The following two parameters are provided for your reference voltage: 5V, 12V, 24V, 48V Current: The working current is generally less than 250 mA. The higher the speed, the smaller the working current will save energy.
The above is the cooling fan manufacturers, Shenzhen Jiangshanlai Electronics to give you reference opinions, details more about the cooling fan knowledge, please contact us!
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