Patent ID: 6177750
Filing Date: 2001-01-23
Classification: H02K

Abstract:
A dynamoelectric machine including a rotor, comprising:a rotor core including a plurality of laminations; anda first rotor end plate and a first end of a rotor shaft integrally formed as a single unit and a second rotor end plate and a second end of a rotor shaft integrally formed as a single unit, the first and second rotor end plates being coupled to respective ends of the rotor core by connecting members passing through holes in the laminations, the connecting members being uniformly distributed at a distance from the axis of rotation, the rotor core including a squirrel cage with rotor bars in slots in the laminations and two integrally formed end rings at respective ends of the rotor bars, the end rings substantially surrounding the respective end plates, each of the end plates including a lip contacting the respective end ring and restraining motion of the respective end ring due to centrifugal forces, the rotor shaft rotating about an axis of rotation of the rotor;wherein at least a portion of the plurality of laminations intersect the axis of rotation.