Patent ID: 9431859
Filing Date: 2016-08-30
CPC Classification: H02K

Claim Text:
1. A rotor in a rotating electric machine comprising: a cylindrical boss having a rotation axis; a plurality of ribs extending radially outward from the cylindrical boss; a cylindrical yoke connecting outer radial ends of the plurality of ribs; a plurality of soft magnetic material poles extending radially outward from the cylindrical yoke; a plurality of magnetic poles extending radially outward from the cylindrical yoke at positions between the plurality of the soft magnetic material poles, and each magnetic pole having a magnet hole; and a plurality of permanent magnets positioned within the cylindrical yoke, the plurality of permanent magnets having a thickness direction aligned with a radial direction of the cylindrical yoke, and each permanent magnet positioned within each magnet hole, wherein each magnetic pole has (i) a magnetism transfer part positioned outside of the magnet hole such that the magnetism transfer part extends radially outward with respect to the rotation axis and relative to the magnet hole, and (ii) a connecting part connecting circumferential ends of the magnetism transfer part, a width of the cylindrical yoke in the radial direction is defined as ‘a’, a width of the magnetism transfer part in the radial direction is defined as ‘b’, and