Improper installation of the cooling fan can also cause noise.


Category:

Industry Trends

Release time:

2019-12-18

Cooling fan Noise issues are relatively common. Some stem from quality problems with the cooling fans themselves, while others arise from improper installation of the cooling fans. Therefore, proper installation of cooling fans is also extremely important.
1. The mounting method that clamps the cooling fan bracket from both top and bottom is prone to resonance and amplification of noise due to the vibrations generated by the cooling fan during operation. In contrast, a high-speed cooling fan that operates without vibration can avoid this issue.
2. The fan blades are installed upside down, drawing heat from bottom to top. Due to the weight of the fan blades themselves, they contain oil. Cooling fan The possible overhang could exceed the height of the outer frame, making contact with the heatsink below and generating noise (which can be effectively resolved by replacing it with a dual-ball bearing).
3. The locking screws were installed incorrectly. The first screw was too tight, causing the lock to be excessively rigid, and the parallel second screw was also tightened too much. Then, locking two opposite screws together will cause the fan’s outer frame to deform and warp, and the fan blades may come into contact with the outer frame walls, potentially producing audible scratching noises. The correct procedure is to first tighten the first screw without over-tightening it, ensuring that the lock remains undistorted. Once this step is complete, re-tighten the diagonally opposite screws, and after finishing that, proceed to tighten the other pair of diagonally opposite screws.
Shenzhen Jiangshanlai Electronic Technology Co., Ltd. was established in 2005. Located in Shenzhen, China, the company is a large-scale enterprise specializing in the R&D, manufacturing, sales, and service of DC brushless motors, DC cooling fans, DC brushless fans, DC stand fans, boosted cooling fans, mini cooling fans, DC cooling fans, DC fans, and custom non-standard fans.

Previous: Some common sense points to keep in mind when selecting a cooling fan.

Next: Noise Reduction Methods for DC Cooling Fans

Related News

Company dinner

On these busy days, I’m grateful to have you all fighting side by side! At this company dinner, everyone can put aside their daily hustle and enjoy some wonderful moments together. Let’s raise our glasses and chat freely—may delicious food and laughter accompany us as we strengthen our team spirit and build an even warmer sense of unity!

2025-08-27

Weekend team-building event

The weekend team-building event by the seaside came to a perfect close! With sunny beaches and endless laughter, the team collaborated seamlessly in fun-filled games, relaxing their minds and bodies amid the soothing sound of ocean waves. Filled with renewed energy, we’re ready to join hands and tackle new challenges together!

2025-08-25

Display cabinet

The newly installed display cabinets at the Huizhou company are gradually being filled up...

2025-08-21

Jiangshan Lai Electronics wishes you a happy Mid-Autumn Festival 2022!

On a day of blooming flowers and a full moon, When families are reunited in joy, May our land send you warm wishes for a happy Mid-Autumn Festival!

2022-09-10

Jiangshan wishes you a healthy and happy Dragon Boat Festival 2022!

The fragrant aroma of zong leaves fills the air on May 5th— May our heartfelt wishes bring you peace and well-being this Dragon Boat Festival! May our land send its best wishes for your health and happiness this Dragon Boat Festival 2022!

2022-06-03

May the land and rivers bring you joy as we celebrate Labor Day!

Salute to the workers! May our country and its people bring joy and happiness to all our customers and employees on this special occasion!

2022-05-01

Advantages and Applications of Oil-Bearing DC Fans

The pivot joint is fixed at the position of the motor stator base, ensuring an appropriate gap between the rotor and the stator. Of course, there must also be a clearance between the shaft core and the bearings to prevent the shaft core from becoming locked and thus unable to function. The stator structure of the motor—hereafter referred to as the "stator"—is designed in such a way that, once power is supplied, an induced magnetic field will be generated between the rotor and the stator. The control circuit then drives the electric fan motor into operation. Therefore, in the conventional fan motor design, as long as the fan rotor, the motor stator, and the drive circuit work together via the pivot joint between the shaft core and the bearings and through magnetic field induction, the motor can operate effectively.

2022-04-18