Patent ID: 9178399
Filing Date: 2015-11-03
Classification: H02K

Abstract:
1. A laminated rotor structure for a permanent magnet synchronous machine wherein disks of a ferromagnetic material constitute the body of the rotor that includes bars of a damper winding extending axially close to the surface from one end thereof to the other, and a circle of permanent magnets disposed in a V-shaped configuration inside the circle formed by the bars, in which permanent magnets the first ends are disposed close to the outer perimeter of the rotor and the second ends are disposed closer to the central axis of the rotor, wherein two permanent magnets constitute a pair of permanent magnets wherein the magnets are disposed at an angle to each other so that their first ends are disposed at a distance from each other and their second ends in proximity to each other, and that a pair of permanent magnets includes an air channel that extends axially through the laminar structure of the rotor in direct heat transfer contact with the second ends of the magnets in the pair of magnets.