Advantages of Fan Micro DC Motors
In the hot summer, the sales of electric fans are extremely high. Whether it is a household drop fan, a bladeless fan or a USB fan, a small hand-held fan or a hanging neck fan, they are all necessary at home. The fan uses a motor to drive the fan blades to rotate and drive the surrounding area. The airflow generates cool wind, and there are single-phase asynchronous motors and DC motors in the fan motor.
TF370 Fan DC Motor
The DC motor fan can solve the problem of fan rotation noise. The DC motor can make the fan more power-saving and can also make the fan run at a low speed. Most of the fan DC motors use permanent magnet DC motors. After power-on, according to the principle of electromagnetic effect, the output shaft of the DC motor drives the fan blades. Rotation reduces the frictional energy loss when the fan is running. At low speed, the noise is lower than 20db, and of course the power consumption is also low. Moreover, due to the convenient speed control of the DC motor, the fan using the DC motor is more efficient than the AC motor. Fans have more air volume adjustment gears, and some even have more than a dozen gears adjustable.
The most obvious disadvantage of the AC motor is that the speed regulation performance is not good. The gears for air volume adjustment are not as many as those of the DC motor fan, and they cannot run at low speed. The noise of the fan blades is also relatively large. The weight is lighter than the DC motor fan.
For small fans, all DC motors are used, usually 5V~12V motors. Micro motors are small in size and light in weight and can be operated by connecting to DC power, such as small USB fans, small hand-held fans, hanging neck fans, etc. Leaf fans, etc. are all driven by micro DC motors, which are widely used because of their low price and convenient control.
Of course, if you have the ability to do it, you can buy a 5V-12V micro motor to DIY a small fan, directly connect to the battery and turn it on, and you need to control the speed through circuit control.
