BLDC BLDC motor with rotor equipped with the modular permanent magnet

摘要

A permanent magnet provided in a rotor is a rotor having permanent magnet modules capable of providing an electric motor in which a cogging torque and a torque ripple are reduced by allowing divided magnets having different magnetic flux density distribution conditions to be adjacent to each other, To a BLDC motor. In order to achieve the above object, a BLDC motor according to the present invention comprises a stator having a shaft at its center, a shaft having a plurality of slots formed therein, and a rotor having the same central axis as the stator, And permanent magnets having N poles and S poles are alternately arranged on the inner circumferential surface of the rotor at regular intervals and the permanent magnets are coupled to each other such that the divided magnets having different magnetic flux density conditions are adjacent to each other .