QFR0912UHE-SP01 Datasheet/PDFDC Fans
DC fans are electronically controlled units that use DC motors to generate a breeze. An example of a DC fan is the QFR0912UHE-SP01. This fan has a host of features that are designed for various applications.
Application Field
The QFR0912UHE-SP01 DC fan is designed primarily for cooling of heat generating components in industrial automation equipment. It is suitable for a range of applications such as air-conditioning, ventilation, air purification, photovoltaic systems, and medical and military applications. Its ultra-low noise feature is particularly suitable for cooling equipment found in public areas, such as railway stations, airports and theatres.
Working Principle
DC fans are operated by direct current motors, or DC motors. They work by using electromagnetic force to move a shaft which then operates the fan blades. This is possible because the magnets in the fan are facing each other in opposite directions; when the current is switched on it creates an electromagnetic field that attracts or pushes the magnets. This causes the shaft to move, and the fan blades to generate a wind.
The speed of the fan can be set and modified according to the needs of the application. This is achieved by varying the voltage of the current that is applied to the motor. The higher the voltage, the higher the speed of the fan. This can also be achieved using pulse width modulation, where a number of pulses are sent in succession to gradually increase the speed of the fan.
Conclusion
The QFR0912UHE-SP01 DC fan is designed for industrial cooling applications where noise and temperature control are major concerns. It can be easily adjusted to meet various demands using its voltage variability or pulse width modulation features. It is therefore an ideal choice for industrial settings that require quiet operation, and temperature control.