The rotor of the DC fan includes the DC fan blade, which is the source of air inflow, the fan axis, which is used to help balance the operation of the fan blade, the rotor magnetic ring, the permanent magnet, the focus of the driving magnetic stage conversion speed, the magnetic ring frame, and the stable magnetic ring. . In addition, it also includes the supporting spring, according to some components to stabilize the operation of all components and part of the motor, and to change the key points of large and small operation speed. It has good speed regulation performance and easy control.

The internal structure of the AC fan (single-phase) is divided into two coil windings, one is the running winding, these two windings are connected in series with each other, so three points are formed, the series point is the common end, and the end of the running winding is the running end. The tail end of the running winding is the running end. In addition, a running capacitor is required. The general capacity is between 12uf and the voltage resistance is generally 250v. 

There are two connectors, one is connected to the end of the running winding, and the other is connected to the tail of the running winding. One end of the power supply (no need to distinguish between the live wire and the neutral wire) is connected to the end of the running winding (that is, it is also connected to one end of the capacitor), the other is connected to the common end, and the wire connector is connected to the motor casing.