Patent ID: 8274190
Filing Date: 2012-09-25
Classification: B22D,H02K,Y10T

Abstract:
1. An electric machine comprising: a plurality of rotor bars; a first coupling component configured to electrically couple the plurality of rotor bars together, wherein each rotor bar of the plurality of rotor bars comprises: wherein the first metallic material comprises a copper bar and the second metallic material comprises aluminum; wherein each rotor bar of the plurality of rotor bars has a first end and a second end opposite the first end, and wherein the first coupling component is electrically coupled to the first end of each rotor bar of the plurality of rotor bars; wherein the electric machine further comprises a second coupling component coupled to the second end of each rotor bar of the plurality of rotor bars, wherein the second coupling component is configured to electrically couple the plurality of rotor bars together; and wherein the second metallic material is also cast about portions of the second coupling component.