DC Fans – 9WL1448P5G001 Application Field and Working Principle

DC fans, referred to as direct current fans, are electric fans that use direct current (DC) instead of alternating current (AC). They can be used to cool electronic equipment in a low voltage environment, as well as to ventilate the display and other cabinets. DC fans are widely used in the transportation industry, and are commonly used in automotive electronic control units and other machines.

Application Field

DC fans are used in many fields because of their advantages in power consumption, noise and functions. For instance, they can be used in aerospace, military, telecom, entertainment, medical and other industries. In the aerospace field, DC fans are used to ventilate and cool the engine; in the medical field, they are used in anesthesia machines and life support systems; in entertainment, they are used in electric amplifiers. Additionally, they can also be used in other machines, such as oil extraction machines, laundry machines and computer power supplies.

Working Principle

DC fans are powered by an electric power supply or a voltage source, and are composed of a fan motor, a fan blade, a fan body and a control circuit. The electric current enters the motor through a switch, and rotates the conducting armature in a stator magnetic field. The magnetic field generates torque, driving the armature of the fan to rotate, and the fan blade to rotate. The centrifugal force generated by the rotating fan blade produces air flow, and its direction can be adjusted by adjusting its angle. The motor and fan are usually mounted on a circuit board, and the control circuit is used to control the speed of the fan. In addition, the circuit board can also be used to monitor the temperature of the fan body and the speed of the fan or to detect the presence of any obstruction.

Conclusion

In conclusion, DC fans are widely used in many types of machines, as they are equipped with functions of low power consumption, quiet noise and easy control. The application field of these fans extends from aerospace, medical and entertainment to oil extraction, laundry machines and computer power supplies. Their working principle is simple – they are powered by an electric power source or a voltage source, and their speed and temperature can be easily monitored and adjusted by the control circuit.