Patent ID: 8901799
Filing Date: 2014-12-02
Classification: H02K,Y10T

Abstract:
1. A rotor disk for an electric motor comprising: a shaft hole for receiving a shaft of the electric motor; and a set of positioning holes around the shaft hole, each configured to receive a positioning pin, wherein the shaft hole is arranged centrally to the rotor disk, the shaft hole and the set of positioning holes are positioned in the rotor disk such that when the rotor disk is set to a rotated position with respect to another similar rotor disk, and the shaft and the positioning pins are penetrated to respective holes of the two rotor disks, the disks cause a pressing force to the shaft, and wherein the set of positioning holes form a plane-geometrical shape whose center of weight differs from a center of the shaft hole wherein the shaft hole and the set of positioning holes are arranged asymmetrically with respect to each other; and wherein the set of positioning holes is arranged asymmetrically with respect to the centrally arranged shaft hole.