E1225H24B1+3-FS

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DC fans are commonly used in the fields of cooling and ventilation because of their energy-efficient and dependable operation. The E1225H24B1+3-FS DC fan is specialized for applications such as computer cooling, power banks, medical equipment, and consumer electronics. It offers great performance and reliable operation with a wide range of features including low voltage motor, ball or sleeve bearing, pulse width modulated (PWM) control, auto-restart, and speed control. Understanding the working principle and features of this fan helps to determine its suitability for your application.

Working Principle:

E1225H24B1+3-FS DC fan is powered by a low-voltage brushless motor, which includes a stator and rotor. The rotor is composed of permanent magnets to provide rotational force while the stator contains electromagnets to deliver power to the motor. When the fan draws power from a power supply, the current flows through the electromagnets in the stator, which creates a magnetic field. The permanent magnets on the rotor then interact with this magnetic field, causing the rotor to spin. This creates a centrifugal force, resulting in airflow.

Pulse Width Modulation (PWM) Control:

The E1225H24B1+3-FS fan comes with pulse width modulation (PWM) control feature, which allows adjustable speed control, thereby improving the overall efficiency of the system. PWM is a signal technology where a square wave signal of constantly changing one period is used to control the speed and airflow of the fan. This is achieved by adjusting the ratio of on time and off time of the square wave signal. The resulting frequency of the signal is what results in the speed adjustment.

Ball or Sleeve Bearing:

The E1225H24B1+3-FS DC fan can be manufactured with either a ball or sleeve bearing. A ball bearing is more expensive but offers superior performance and is suitable for the majority of fan applications. It’s composed of hardened steel balls that spin between an inner and outer ring of the bearing as the fan spins. This eliminates the axial and radial movements of the fan, resulting in smoother operation and quieter noise levels. On the other hand, sleeve bearings have more friction, which makes them more prone to wear and tear. Sleeve bearings have a lower cost and are suitable for less demanding applications.

Auto-Restart:

E1225H24B1+3-FS DC fan also offers the effective, energy-saving, and convenient feature called auto-restart. This feature ensures that the fan resumes its operations after a power interruption. After the power supply is restored, the fan will automatically turn on at the same speed, avoiding a lengthy start-up time. This feature is ideal for applications such as computer cooling, where a sudden shutdown of the system can cause heat buildup and inadequate cooling, resulting in system damage.

Applications:

The E1225H24B1+3-FS is a versatile DC fan suitable for a wide range of applications in the consumer electronics, medical equipment, power banks, and computer cooling markets. Its low voltage motor, PWM control, and auto-restart feature make it an ideal choice for power-sensitive applications, while its ball or sleeve bearing ensures quiet and noise-free operation. With its reliable and efficient operation, E1225H24B1+3-FS DC fan is the ideal fan for a variety of applications.

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