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How to solve the noise of AC miniature cooling fan?

2023-09-25

With the progress of the times, the development of science, the popularization of computers, people's pursuit of computer "light, thin, short" function, as well as the use of comfort is another indispensable condition. PC appearance, structure, transmission, power distribution, environment, electromagnetic interference, heat transfer, noise and other eight major issues, heat transfer and noise play an important role.

PC computing speed up, the heat is rising, the heat dissipation module gradually increased. How to "dissipate heat" is currently a topic that everyone is thinking about. In addition to the requirements for heat transfer, noise is also an important choice for the use of products. People don't want to buy a PC that makes a lot of noise, and the biggest source of this annoying noise is the AC fan.


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It is difficult for miniature fans to take care of heat dissipation without generating annoying noise. When applying fans, the speed and noise generation of AC cooling fans need to be taken into account, which is a headache for designers. The higher the fan speed, the higher the flow and static pressure and the higher the relative noise, but the speed is not enough to provide enough airflow and static pressure to carry away the heat. In this case, the variable fan was born. When a large amount of heat needs to be taken away, the speed is high, and when a large amount of heat does not need to be taken away, it can be operated at a low speed. When the PC generates a lot of heat, it needs high speed air volume and air pressure to take away the heat, and of course the noise is big; when the AC cooling fan does not need to run at high speed, the speed can be lowered to reduce the noise.

Generally a DC fan needs at least one set of DC power supply plus a signal line or PWM control signal line. The FG signal is a signal generated inside the fan to indicate the fan speed. A typical fan consists of a 4-stage motor, so the AC cooling fan rotates. There will be two sets of the same signal in a circle.

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Copyright © 2024 Dongguan Juwang Technology Co., Ltd   粤ICP备2022025395号

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The Sakawan website uses cookies to improve and personalize your experience and to ensure that the website functions properly. Your data will not be stored on our website after it is closed. By using this website, you consent to the use of cookies. more information about our privacy policy. Thank you!

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