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[Do you know about heat dissipation] How to judge whether the heat dissipation fan is refurbished

Release time:

2019-07-24

The working principle of the cooling fan is realized according to energy conversion, namely: electrical energy → electromagnetic energy → mechanical energy → kinetic energy. Its circuit principle is generally divided into various forms, the use of different circuits, the performance of the fan will be different. The cooling fan has the characteristics of fast speed, large air volume, good heat dissipation effect, and convenient use. It can be used in different industries. The market size is large and there are many types. When some users buy cooling fans, they may ask whether the seller is a manufacturer. Yes, because there will be refurbished cooling fans on the market, and what manufacturers sell will not be refurbished. The performance of the refurbished cooling fan is not better than the new fan, then

Cooling fan The working principle of is realized according to energy conversion, namely: electrical energy → electromagnetic energy → mechanical energy → kinetic energy. Its circuit principle is generally divided into various forms, the use of different circuits, the performance of the fan will be different.
The cooling fan has the characteristics of fast speed, large air volume, good heat dissipation effect, and convenient use. It can be used in different industries. The market size is large and there are many types. When some users buy cooling fans, they may ask whether the seller is a manufacturer. Yes, because there will be refurbished cooling fans on the market, and what manufacturers sell will not be refurbished. The performance of the refurbished cooling fan is not better than that of the new fan, so how should we judge whether the cooling fan is refurbished?
The method of judging whether the cooling fan is refurbished:
Judging from the trademark, the trademark printing of the original cooling fan is very exquisite, the color is uniform, the printed handwriting is clear and glossy, and there is a sense of protrusion. However, because the trademark of the refurbished fan is informal and the printing quality is very poor, the background color will be different, and the handwriting will not have a sense of protrusion, and the color will be scraped off by gently scraping the trademark surface with fingernails, the original trademark will not be affected by fingernail scraping.
Judging from the fan blades, the surface of the fan blades of the original cooling fan will present a matte effect, and fine and uniform particles can be seen facing the light, which feels rough when touched by hand. However, due to long-term friction with the air, the particles on the surface of the fan blade are gone and become smooth, and traces of rubbing can be seen.
Finally, there are mounting holes: the refurbished fans are all used, so traces will be left on the mounting holes. If they are fixed with screws, they will leave threads in the holes. If they are fixed with screws and nuts, they will leave nut indentations around the holes.
 
The above is the introduction of how to choose a hot fan. Shenzhen Jiangshanlai Electronic Technology Co., Ltd. is a large-scale enterprise specializing in the customization, research and development, manufacturing, sales and service of DC brushless motors, DC cooling fans, DC brushless fans, DC bracket fans, pressurized cooling fans, micro cooling fans, DC blowers, and non-standard fans, DC fan wholesale manufacturers and DC fan suppliers. Products sell well in Guangdong, Shenzhen, Guangzhou, Dongguan, Fujian, Zhejiang, Jiangsu and other places.
If there is a need, you can consult us.

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