Enlargement of Claw Pole Motor Using SMC Cores Divided in the Circumferential Direction

Abstract

SUMMARYClawtooth motors have the feature that they can be made thin in the axial direction. This makes them suitable for appliances, automobile accessories, and small-sized industrial motors. On the other hand, there is a need for thinner HEV and elevator motors and large-sized industrial motors. In this study, we examined ways of increasing the output of clawtooth motors. We arrived at the following conclusions.(1) The optimal stator structure was determined and the prospects of attaining the target specification of 123 N-m were determined. (2) Three important manufacturing tasks, assurance of core assembly accuracy, thin coil manufacture, and rotator insertion, were identified.