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DC Fans

DC Fan (direct current fan) is one of the important components in modern electrical appliances. It can help equipment to dissipate heat and ensure the normal operation of the whole system. With the development of miniaturization technology, the environment of the equipment is limited. The DC Fan with small size has a good effect on reducing the need for space, while the improved technology also makes it work more stable. 9LG0812S4002 is a typical example of DC fan, which is widely used in some external electronic equipment in recent years.

9LG0812S4002 fan adopts the DC, dual ball bearing (DBB), dc brushless motor structure. In the application, 9LG0812S4002 can provide high air output, low noise, long life and other special advantages. With 48V DC input and 12V DC output, it can reach a maximum speed of 4800 rpm, and its air pressure is 0.71mm-H2O. It has a rated air volume of 39.13CFM and a maximum air volume of 46.24CFM.

9LG0812S4002 is mainly used in applications requiring low noise, such as power supplies, audio amplifiers, video cameras, networking devices, CNC machine tools, medical and automotive applications. In terms of working principle, its basic principle is the same as that of ordinary DC fan. Generally speaking, the magnets of the motor will produce magnetic field, and the coil of the motor will produce a current. Under the action of the Lorentz force, the coil produces a forward thrust, and the motor moves forward naturally at a constant speed. In addition, after receiving the pulse signal, the Hall element generates the corresponding pulse signal to control the rotation speed and power.

In summary, 9LG0812S4002 is a highly efficient, ultra-low noise DC fan, widely used in the field of cooling and cooling system. In terms of technology, it adopts DC brushless fan motor, energy saving and environment friendly; in terms of operation, it is based on the configuration of dual ball bearing, which has the advantages of low vibration, ultra-low noise and long lifetime.

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