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As an indispensable component in electronic devices, the performance and lifespan of the cooling fan directly affect the stability and operational efficiency of the device. Therefore, regular maintenance and cleaning of the cooling fan is particularly important. This article will provide a detailed introduction to the regular maintenance of the cooling fan, as well as the specific steps for cleaning and maintenance, to help you improve equipment performance and extend the service life of the fan.

1、 Regular maintenance of cooling fans

1. Check the fan blades and their fixing status

Blade integrity: Check whether the fan blades are intact and firmly fixed. Regularly adjust the blade angle to ensure that it works in the best condition.

Fixed screws: Regularly check whether the fixing screws of the fan are loose and tighten them in a timely manner to prevent the fan from falling off or being damaged.

2. Bearing lubrication and inspection

Lubrication condition: Check the lubrication condition of the bearings, regularly add lubricating oil or replace new lubricating grease to maintain the good operation of the bearings. Pay attention to selecting lubricating oil suitable for the fan and avoid using lubricating grease with excessive viscosity.

Bearing wear: Pay attention to checking whether there are signs of wear on the bearings. If there are abnormal noises or vibrations, it may be a manifestation of bearing wear or motor failure. It is necessary to seek professional maintenance in a timely manner.

3. Inspection of fan casing and power cord

Shell condition: Check the fan shell for rust, damage, and other issues, and promptly repair or replace it.

Power cord inspection: Ensure that the power cord is intact and securely connected. Regularly replace aging or damaged power cords, avoid using fans when the power voltage is too high or too low, and prevent motor burnout.

4. Evaluation of heat dissipation efficiency

Air volume and temperature: Regularly evaluate the heat dissipation efficiency of the fan, observe whether the air volume is sufficient, and whether the equipment temperature is within a reasonable range. If there are any problems, it is necessary to promptly check and adjust the installation position of the fan or replace it with a higher performance fan.

2、 Cleaning and maintenance of cooling fans

1. Regularly clean the dust

Dust impact: Long term operation of the cooling fan will inhale a large amount of dust, which not only hinders the ventilation of the cooling fins, but also affects the rotation of the fan. Therefore, regularly cleaning dust is an important step in maintaining the cooling fan.

Cleaning steps:

Disassembly: First, disassemble the heat sink and fan for easy cleaning.

Rinse the heat sink: The heat sink can be directly rinsed with water, and be careful to avoid using highly corrosive cleaning agents.

Wipe the fan: For sticky dirt on the fan blades and heat sinks, use a cotton swab or tweezers with a cloth and a small amount of cotton to wipe them clean. Avoid scratching with hard objects to prevent damage to the surface of the fan.

2. Lubrication and maintenance

Lubricating oil filling: If the noise of the cooling fan increases abnormally, it is usually due to the depletion of internal lubricating oil. At this point, it is necessary to add lubricating oil to the fan shaft.

Adding steps:

Dismantling the fan: Remove the fan from the heat sink and open the bottom oil seal (usually a black plastic sheet).

Add lubricating oil: Use small pointed objects such as tweezers or toothpicks to drip lubricating oil into the shaft, and the oil should reach half of the depth of the shaft to avoid excessive use.

Sealing and fixing: Immediately apply the oil seal after refueling to prevent the lubricating oil from evaporating. Invert it for a period of time to allow the lubricating oil to fully penetrate the interior of the bearing, and then fix it to the heat sink.

3. Precautions

Avoid accidental injury: During cleaning and maintenance, avoid operating the fan completely when it has stopped to prevent accidental injury.

Correct installation: When reinstalling the fan, ensure that the fixing screws are tightened to avoid loosening. If metal spring clips are used for fixation, the tightness should be adjusted to ensure that the heat sink is in full contact with the CPU surface.

Thermal grease usage: When installing a cooling fan, it is recommended to apply an appropriate amount of thermal grease between the heat sink and the CPU to improve heat dissipation efficiency. Pay attention to the moderate amount of silicone grease used to avoid excessive leakage.

Regular maintenance and cleaning of cooling fans are key to ensuring stable operation of equipment and extending the service life of fans. Through the maintenance content and cleaning techniques introduced in this article, you can easily master the maintenance methods of cooling fans, improve equipment performance, and contribute to green environmental protection.