Patent ID: 7365465
Filing Date: 2008-04-29
Classification: H02K

Abstract:
1. A rotor structure for an electric motor, comprising: a cylindrical rotor core assembly having an end surface face; a plurality of permanent magnets disposed on an outer circumference of the rotor core assembly; a bandage wrapped around the rotor core assembly to secure the permanent magnets in place, said bandage having a bandage edge arranged in proximity of the end surface of the rotor core assembly; a securing ring disposed radially over the bandage edge such as to substantially extend flush with the bandage and to hold the bandage against the rotor core assembly; and an end plate disposed on the end surface for securement of the permanent magnets in axial position upon the rotor core assembly, wherein the bandage edge of the bandage is wound over an outer circumference of the end plate, with the securing ring placed over the bandage edge, wherein the end plate has a generally L-shaped configuration with an axial leg and a radial leg, wherein the bandage edge is wound over the axial leg.