How do fans eliminate noise?

Every summer, we can't avoid using fans. Do you know how to choose a fan? If the fan has noise, how to eliminate it? Now, let Bian Xiao discuss these two issues with you.

First, the selection skills of fans

1. certification: when purchasing electric fans, consumers should read the instructions carefully to see if they have obtained the compulsory certification, quality system certification and inspection standards; At the same time, environmental protection and low carbon are now advocated, depending on whether it meets the national first-class energy efficiency standards.

2. Low noise: The main part of the electric fan that makes noise is the motor. When choosing an electric fan, be sure to listen to whether there is noise when the motor is running and see if it is shaking and stable when running; A good motor can make you hear only the whisper of the wind in a quiet environment, and an ultra-quiet fan is a good fan.

3. No odor: The odor is the odor generated by the insulating paint on the copper sheet of the electric fan during operation. When buying an electric fan, you should smell it to see if the paint is environmentally friendly and whether it has passed the quality inspection, so that it will be cool in the fresh air.

4. Electrical safety: The safety requirements of electric fans are detailed in national standards, and consumers can also conduct simple tests. Qualified fans, the fingers of adults can't touch the leading edge of the fan blade through the mesh cover, and families with children should choose electric fans with dense mesh cover.

Second, how to eliminate noise by fans

1, lubricate the bearing

Bearing is the most important part of fan transportation. After a long time, lack of lubricating oil, high-speed rotation will produce noise. So, we just need to drop a few drops of lubricating oil on the fan bearing, if we don't use a sewing machine instead.

2. Repair the fan blade

Vibration noise is also an important part of fan noise, because the blade is loose on the bearing and the bearing wear causes the gap to become larger, so it is only necessary to remove the fan and tighten the screws, and it will not vibrate again after it is firmly fixed.

3. Polishing the fan blades

For the poor quality cooling fan, the center of gravity of the blade may not be on the shaft, resulting in eccentricity. After a long period of use, the eccentricity of the fan will become more and more serious. You can remove the * * *, then hang it in the center with a thin wire, lightly grind the sinking end on the grinding wheel for a few times, then test it, and then install it until the fan can be in a horizontal position.

The selection of fans can be considered from the aspects of certification, noise, smell and electricity safety. The methods to eliminate fan noise mainly include lubricating bearings, fixed blades and polished blades.