How can you reduce the noise of the cooling fan?-Capital-Cooling fan manufacturer

For the noise of the cooling fan, the larger the air volume is, the greater the noise is. The noise is caused by vibration. Incorrect installation angle, large wind pressure, difference in equipment structure, fan material, etc. will affect the noise value of the fan. The cooling fan is used in indoor environment and household appliances, etc., with high noise requirements. Therefore, any measures that can reduce the fan noise can be considered in the design. The following are several measures to reduce the noise of the cooling fan

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1. Ball bearing is used to reduce the noise of the cooling fan. The fan is equipped with oil bearing and roller bearing. The oil bearing has low noise in the early stage when the lubricating grease is sufficient. With the longer the service time, the lubricating grease evaporates, which increases the gap between the stator and the rotor to produce more vibration and thus increases the noise. Therefore, it is better to use ball bearing

2. Reduce the speed to reduce the noise of the cooling fan. Under the condition of meeting the cooling demand, reducing the speed is more obvious to reduce the noise. You can also install two cooling fans to reduce the speed by half to reduce the noise, and the air volume can be guaranteed

3. Correct installation can reduce the noise of the cooling fan. Due to the difference of equipment design and materials, correct installation can reduce the resonance of the equipment. The four corners of the fan must be on the same plane, and the screw tightness should be the same strength. For example, the material of the installation position is prone to generate resonance noise, and the four corners of the fan can be added with rubber and other cushioning pads

4. Reduce the wind pressure to reduce the noise of the fan. This involves the fan itself and the design of the equipment, the angle and smoothness of the fan blade design, the overall design of the concentration of the wind. In terms of the equipment, no matter whether it is blowing or suction, any component in the same direction as the air duct should be designed to reduce the wind resistance as much as possible. For example, when the fan blows through the radiator, each of the two ends of the radiator can be designed with a tip, which will reduce the wind resistance

Capital Technology Co., Limited is the chief agent of SANYO DENKI, one of the leading enterprises of the cooling fan industry. We are a factory who also have our own independent brand CAPITAL product series. The main products are cooling fan, DC/AC fan, radiator, filter, reactor etc. We can provide customer with the most professional and perfect technical support, welcome to contact me at anytime at rainlee@szcpt.com.

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