AFB0624H-A

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DC Fans application field and working principle

DC Fans (Direct Current Fans), also known as single-phase AC fans, are regulated electric fans operated by direct current. They are widely used in various areas. The following will introduce the application field of DC fans as well as their working principle.

Application field

DC Fans are usually used in fields such as electronics, medical, automotive, military, aerospace and other consumer markets. In the consumer market, the DC fans are used in the ventilation systems of electronic control cabinets, air conditioners and air purifiers, as well as in the air intake application of consumer home appliances, storage devices and servers. Besides, they are also used in the cooling systems of computers, game consoles, office automation equipment, intelligent Internet of Things and other electronic products.

In military, aerospace, automotive and medical fields, DC fans are used in avionics systems, oxygen generators, missile guidance systems and medical instruments. In addition, if configured with special shapes, speed regulating systems, remote sensing systems, leak detecting systems or other functions, the applications will be diversified.

Working principle

The working principle of DC fans is based on the principles of electrical engineering. DC motors are powered by direct current, and the motors rotate in proportion to the strength of the current, thereby delivering power to the fan blades.

The fan blades produce airflow when they move. As the fan blades move faster, the amount of airflow will increase accordingly. When the speed of the blades increases, the blades will create a suction effect, the motor will generate torque, and the fans will accelerate further. The higher current will cause the air pressure of the fan blades to increase due to the centrifugal force of rotation, and ultimately the higher airflow will be obtained.

DC fans are the main components of the cooling system. The internal temperature of the system is reduced, and the cooling effect is achieved through the airflow generated by the fans. The temperature of the heat sink and other peripheral components is also reduced accordingly.

DC fans are able to automatically adjust their speed in response to the working environment, maintaining a balance between fan speed and system cooling. The internal control system will precisely control the speed of the fan motors, and in combination with the various temperature sensors in the system, the fans will adjust their speed to achieve the best performance.

Conclusion

To sum up, DC Fans are widely used in various application fields, especially for the cooling system of electronic and medical equipment. Their working principle is relatively simple, and the internal control system can precisely control the fan motor speed and maintain a balance between airflow speed and temperature. The AFB0624H-A series of DC fans is a good choice for many applications.

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