Patent ID: 9263920
Filing Date: 2016-02-16
CPC Classification: H02K

Claim Text:
1. A permanent magnet rotor comprising: a shaft; a rotor core fixed to the shaft; a bracket fixed to the rotor core; and a plurality of permanent magnets contacting an outer surface of the rotor core, wherein the bracket comprises a base at one axial end thereof, an end ring at the other axial end thereof, and a plurality of arms axially extending between the base and the end ring and spaced in a circumferential direction, the base has an opening for the insertion of the shaft, the rotor core is positioned between the arms, each magnet is sandwiched between two adjacent arms, an inner diameter of the end ring is greater than an outer diameter of the rotor core; and wherein the arms extend radially from a radially outermost surface of the base which faces away from the shaft.