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[Know about Heat Dissipation] Talking about DC DC Heat Dissipation Fan

Release time:

2019-09-02

DC DC fan input is DC, the general DC voltage is: 3V, 12V,24V,32V,48V,5V,60V,25.5V,42V,18V,15V. The operation principle is based on Ampere's right-hand rule. When the conductor passes current, a magnetic field will be generated around it. If the conductor is placed in another fixed magnet, suction or repulsion will be generated, causing the object to move. Inside the fan blade of the DC fan, a rubber magnetic strip that has been filled with magnetism before is attached. Around the silicon steel sheet, two sets of coils are wound on the axis part, and a Hall induction component is used as a synchronous detection device to control a set of circuits, which makes the two sets of coils wound on the axis work in turn. The silicon steel sheet produces different magnetic poles, which generate attraction and repulsion with the rubber magnet. When the suction repulsion is greater than the static friction of the fan, the fan blades naturally rotate. Because the Hall induction component provides the synchronization signal, the fan blade can continue to operate. As for its direction of operation, it can be determined according to Flemming's right-hand rule.

  DCDC FanThe input is DC, the general DC voltage is: 3V, 12V,24V,32V,48V,5V,60V,25.5V,42V,18V,15V. The operation principle is based on Ampere's right-hand rule. When the conductor passes current, a magnetic field will be generated around it. If the conductor is placed in another fixed magnet, suction or repulsion will be generated, causing the object to move. Inside the fan blade of the DC fan, a rubber magnetic strip that has been filled with magnetism before is attached. Around the silicon steel sheet, two sets of coils are wound on the axis part, and a Hall induction component is used as a synchronous detection device to control a set of circuits, which makes the two sets of coils wound on the axis work in turn. The silicon steel sheet produces different magnetic poles, which generate attraction and repulsion with the rubber magnet. When the suction repulsion is greater than the static friction of the fan, the fan blades naturally rotate. Because the Hall induction component provides the synchronization signal, the fan blade can continue to operate. As for its direction of operation, it can be determined according to Flemming's right-hand rule.
According to the working principle, we can know that there are permanent magnet bars in the rotor of the DC cooling fan but not the AC cooling fan, and the DC fan has PCB board but the AC fan does not. In terms of frame blades, the fan frame and fan blades of the DC fan are generally made of plastic materials, mainly PBT materials, which are usually applied in the form of 30% fiber addition in terms of parameters. The power consumption of the DC fan is much smaller than that of the AC, the speed that the AC cooling fan can achieve is much smaller than that of the DC cooling fan, but the price is more expensive than the DC cooling fan.
 The above is the use of cooling fan noise and noise difference judgment small knowledge sharing. 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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