Patent ID: 9225218
Filing Date: 2015-12-29
Classification: H02K,Y10T

Abstract:
1. An end winding support for a rotor in an electrical machine, where the rotor includes a lamination stack in which winding bars are distributed around the circumference of the stack, and end windings of the winding bars extend beyond an axial end of the lamination stack, the end winding support comprising: an outer ring and an inner ring, wherein the end windings are arranged between the outer ring and the inner ring along a direction parallel to a rotational axis of the rotor; a shrink fitted joint between the outer ring and the end winding, and an assembly formed by the outer ring, the end windings and the inner ring, wherein the assembly is attached to the motor, wherein both the outer ring and the inner ring are spaced from the lamination stack so that the assembly can move in a radial direction with respect to the stack.