JSL wishes you Happy Labor Day 2022!
Salute to the workers!
JSL wishes all workers happy Labor Day 2022!
2022-05-01
How does the noise of cooling fan come into being?
- Categories:Industry news
- Time of issue:2019-04-15 19:25
- Views:
(Summary description)The unit of fan noise is decibel (dB). Fan noise is the amount of noise produced by the fan when it works. It is affected by many factors, such as friction and air flow.
The higher the speed of the f
How does the noise of cooling fan come into being?
(Summary description)The unit of fan noise is decibel (dB). Fan noise is the amount of noise produced by the fan when it works. It is affected by many factors, such as friction and air flow.
The higher the speed of the f
- Categories:Industry news
- Time of issue:2019-04-15 19:25
- Views:
Information
The unit of fan noise is decibel (dB). Fan noise is the amount of noise produced by the fan when it works. It is affected by many factors, such as friction and air flow.
The higher the speed of the fan and the larger the volume of the fan, the greater the noise will be. In addition, the vibration of the fan itself is also a factor that can not be ignored. Of course, the self-vibration of high-quality fans will be very small, but the first two are difficult to overcome. To solve this problem, we can try to use larger fans. In the case of the same air flow, the working noise of large fan at lower speed is less than that of small fan at higher speed. Another factor that we can easily overlook is the bearing of the fan. Because of friction and collision between shaft and bearing when fan rotates at high speed, it is also a main source of fan noise.
The measurement of fan noise needs to be carried out in a muffler with noise less than 17 dB, one meter away from the fan, and aligned with the fan's inlet along the direction of the fan's rotation axis. A-weighted method is used to measure the fan's inlet. The frequency spectrum characteristics of fan noise are also very important, so it is necessary to record the frequency distribution of fan noise with a spectrum analyzer. Generally, the noise of fan should be as small as possible, and there can be no abnormal sound.
Keyword:
Scan the QR code to read on your phone
Previous:
How does the DC cooling fan work?
Related news
JSL attended Shenzhen International Electronics Fair ELEXCON 2021
At the end of September 2021, the ELEXCON Shenzhen International Electronics Show and Embedded System Exhibition hosted by UBM Creative Exhibition (Shenzhen) Co., Ltd. will be "The smart world starts here! Towards smart design-advanced packaging and testing-supply chain upgrade-ecosystem ”As the theme, focusing on displaying 5G, Internet of Things, edge AI, domestic chips, RISC-V, embedded systems, TWS and wearable technology, SiP and advanced packaging and testing, autonomous driving and Internet of Vehicles, shared charging and replacement technology, Three generations of semiconductors and other new technology products and solutions, 20+ summit forums will be held on the spot, 200+ senior expert speakers will be invited to create an annual carnival covering Chinese electronic engineers and embedded developers!
2021-11-04
Congratulations to JSL for obtaining IATF16949 certification
In December 2020, Shenzhen Jiangshanlai Electronic Technology Co., Ltd. successfully obtained IATF 16949 certification, which marks that we have been recognized by the international organization for Standardization (ISO) and the international automotive working group (IATF). It also urges jiangshanlai to continue to use the organizational environment, leadership, support and technology to improve product quality.
2020-12-18
FRIENDLY LINK：
Mobile : +86 13823587960
E-mail ： jslfans@jsldianzi.com
Add ：Floor 1, floor 2, floor 3 and floor 4, No. 42, mudunjiu village, Dongzhou community, Guangming Street, Guangming District, Shenzhen
Copyright©2021Shenzhen Jiangshanlai Electronic Technology Co., Ltd.
Support for IPv6 Traffic Powered by www.300.cn
Which DC fan wholesale manufacturer is better, the recommended DC fan supplier rankings, the price of brushless DC fans, and what are the