DOUBLE ROTOR AND SINGLE STATOR TYPE BLDC MOTOR

摘要

PURPOSE: A brushless DC motor with a double rotor and a single stator is provided to obtain smooth initial driving because the N-pole outer magnet of an outer rotor, corresponding to the S-pole inner magnet of an inner rotor, is deviated from an imaginary reference line. CONSTITUTION: A brushless DC motor comprises a motor casing which rotates about a motor shaft. A casing body(100) is formed on the rear side of the motor casing, and a casing cover(110) is coupled to the casing body on the front side of the motor casing. An inner rotor having an inner magnet and an outer rotor having an outer magnet are integrated in the casing body. A stator is arranged between the inner and outer rotors and has a stator frame coupled to the motor shaft.