Development of BLDC motor with 3 times output

BLDC motors with high output are required. In these motors, some segment-shaped sintered ferrites with 4 MGOe were used. It is difficult to enhance output while keeping the same body size. Recently, a high energy anisotropic bonded magnet with 23 MGOe, called MAGFlNE, has entered the market. However, cogging torque in DC brushless motors generally increases as motor torque increases. Moreover, the increase in cogging torque in radially aligned magnets is extreme. We have solved this problem by developing a hybrid alignment using one ring-shaped MAGFINE25, and succeeded in developing a BLDC motor with 3 times greater output than current BLDC motors.