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Time：2021-10-13Views：0
Cooling fans are known to everyone, and I believe everyone knows their functions and precautions. Do you know the main faults of cooling fans? Today, the editor of cooling fan manufacturers will summarize the faults and cause analysis of cooling fans for you.
The main reasons for the noise of the cooling fan are: fan dust, normal wear and tear, motor damage, etc.
1. Fan dust: While the air convection generated by the cooling fan at work dissipates the notebook, it also keeps the dust in the air on its surface and near the cooling vent, which not only affects the heat dissipation effect, but also increases the load of the cooling fan.
also changes the air convection environment, resulting in noise. This phenomenon will not affect the components if the dust is removed in time; if the dust cannot be removed in time, it will cause the fan shaft to wear out and cause the fan blade "eccentricity" over time. This kind of noise can only be solved by replacing the cooling fan.
2. Normal wear and tear:
The "eccentricity" of the cooling fan blade is the main cause of loud noise. The center of gravity of the fan blade is on the axis. It runs very smoothly and the sound is very small. However, with daily wear and tear, a certain deviation will occur. The center of gravity of the fan blade does not cause "eccentricity" on the axis, so the fan rotates After it is up, it is equivalent to an oscillator (the oscillator is to add an eccentric wheel to the motor shaft). As the use time becomes longer, the fan bearing gradually wears out, which makes the vibration worse and the noise becomes louder.
3. Motor damage:
The cooling fan is a consumable part. After the motor reaches its design life, or the motor is damp, internal short-circuit, overload, power surge, it may cause damage to the motor. This failure is normal and can be solved by replacing the fan.
Four. Suggestions for use:
The cooling fan has a normal wind noise during operation, but when you find that the fan sound is significantly larger than when you purchased the machine or is significantly different from the wind noise during normal operation (such as scratching or crashing), you need to The fan is overhauled or dust cleaned. It is recommended to ask the service station engineer to help clean the fan dust.
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