220V AC Cooling Fan principle

Principle: "220V AC Cooling Fan" works by energy conversion to achieve, namely: energy electromagnetic energy → → → kinetic energy to mechanical energy. The circuit principle is generally divided into a variety of forms, using different circuits, there will be differences in the performance of the fan.
Axial "220V AC Cooling Fan" consists of:
Fan frame, blades, bearings, PCB control circuit, the drive motor
Speed:
Speed refers to the speed of rotation "220V AC Cooling Fan", usually within one minute laps to measure the rotation, namely: rpm. Electromechanical speed winding turns, diameter, blade impeller diameter and bottom diameter, leaf shape and the bearings and other factors, the speed increases, the air flow is increased accordingly. When the size of the speed value, to a certain extent, represents a size of the wind, in certain conditions, the greater the speed, the noise and vibration will correspondingly increase, therefore, the amount of wind to meet the cooling requirements, should try to use a low speed fan .