DC FanIn simple terms, it is a cooling fan that converts electrical energy into electromagnetic energy through DC voltage and electromagnetic induction, and then converts electromagnetic energy into mechanical energy, and finally into kinetic energy, thereby turning the fan blades.

The regular DC fan is mainly composed of four parts: rotor, stator, motor and outer frame.

DC motor consists of permanent magnet rotor, multi-stage winding stator, position sensor, electronic commutation drive control circuit. The rotor is composed of the motor shell permanent magnetic strip shaft core fan blade. Stator part: Enameled wire coated plastic silicon steel sheet bearing Hall induction detection drive circuit board shaft.

The regular DC fan is mainly composed of four parts: rotor, stator, motor and outer frame. DC motor consists of permanent magnet rotor, multi-stage winding stator, position sensor, electronic commutation drive control circuit. The rotor is composed of the motor shell permanent magnetic strip shaft core fan blade. Stator part: Enameled wire coated plastic silicon steel sheet bearing Hall induction detection drive circuit board shaft.

Working principle:
The core components of DC fan are stator and rotor. Through Ampere's right-hand rule, we know that when a conductor passes through a current, a magnetic field will be generated around it. If the conductor is placed in another fixed magnetic field, suction or repulsion will be generated, thus causing the object to move. Inside the fan blade of the DC fan, a rubber magnet filled with magnetism is attached in advance. Around the silicon steel sheet, two sets of coils are wound around the axis part, and a Hall induction component is used as a synchronous detection device to control a set of circuits. The circuit makes the two sets of coils wound around the axis work in turn, so that the silicon steel sheet produces different magnetic poles., This magnetic pole and the rubber magnet produce attraction and repulsion. When the suction and repulsion force is greater than the static friction force of the lice fan, the fan blades rotate naturally. Because the Hall induction component provides the synchronization signal, the fan blade can continue to operate. As for its direction of operation, it can be determined according to Flemming's right-hand rule. This is the working principle of the DC fan.