Study of permanent magnet motor using a three-dimensional bend core

In this paper, to provide a reduction in size and weight of the motor, improvements to the torque density by the use of a three-dimensional bend core motor was examined. The motor using the three-dimension bend core can collect the flux leakage. The torque density was able to be improved by 20% by effectively using the magnetic flux. As a result, the reduction in size and weight of the motor becomes possible, and the performance gain of the automobile or robot can be expected.