Press "220V Cooling Fan" structure can be divided into: single-phase capacitor type, single phase shaded pole, three-phase induction, DC and AC and DC series wound commutator fan. "220V Cooling Fan" generally use single-phase or shaded pole motors. Shaded pole motor structure is simple, easy to manufacture, easy maintenance, low cost, but a small starting torque, overload poor, low efficiency, only "220V Cooling Fan" on the use of the small size of the desktop, the design does not use. Capacitor-run motor power factor, good starting performance, high efficiency, strong overload capacity, smooth operation, most fans are used capacitor-run motor.