How do manufacturers do dust-proof cooling fans?

The characteristics of the cooling fan itself are different from other products. The cooling fan actively agitates the air and accelerates the air flow, so it also sucks in dust at the same time. There are two main aspects of inhaling dust. One is sucking into the bearing, and the other is sucking into the rotor and stator. Inhaling dust has more or less influence on the cooling fan. The common practice is generally to start from the following two aspects: 1. Design When the motor is installed in the outer frame, increase the height to allow the motor to sink, reduce the distance between the stator and the rotor, and reduce dust entry. 2. Double ball bearings are used. The balls have a certain degree of dust resistance and the bearings are not susceptible to serious interference In addition to the above two aspects to protect the cooling fan from dust, adding a dust-proof net to the fan is also a very effective way. Because the cooling fan with dust-proof design is used less, most manufacturers do not have such molds, so it is more advisable to add a dust-proof net without opening the mold. Welcome to the heat dissipation classroom and news center of the cooling fan manufacturer again. The copyright belongs to the cooling fan manufacturer and represents only personal opinions. Please do not reprint the whole article. Any violation will be held for legal responsibility. If you need to know more about the cooling fan manufacturer's product introduction, please Click on the product center