Patent ID: 8704413
Filing Date: 2014-04-22
Classification: H02K,Y10T

Abstract:
1. An electromagnetic step-by-step wobble micromotor, comprising: an internal component of ferromagnetic material with three or more poles; an electrical winding on each pole of the internal component; and an annular component of ferromagnetic material external to the internal component, wherein: the internal component has an internal component external surface and the external component has an external component internal surface, the internal component external surface and the external component internal surface being adapted to directly contact along a portion thereof; the internal component external surface and the external component internal surface have a teethed configuration, each tooth having a peak radius of curvature and a valley radius of curvature, the peak radius of curvature being different from the valley radius of curvature; and during an operational mode of the electromagnetic step-by-step wobble micromotor each winding is in a powered condition.