公开(公告)号：US12009701B2

公开(公告)日：2024-06-11

申请号：US17711484

申请日：2022-04-01

Applicant: Regal Beloit America, Inc.

Inventor： Emma Murphy ,  Matthew Scott ,  Stephen English

IPC: H02K1/28 ,  H02K1/276 ,  H02K15/03

CPC classification number: H02K1/28 ,  H02K1/2773 ,  H02K15/03

Abstract: A rotor assembly for use in a radial flux electric motor assembly is provided. The rotor assembly includes a rotor core having a plurality of circumferentially spaced rotor poles and a plurality of magnets alternately spaced with the plurality of rotor poles. The plurality of rotor poles define a radial aperture between each pair of circumferentially adjacent rotor poles, and each radial aperture is configured to receive a magnet of the plurality of magnets therein. The rotor assembly further includes an end cap coupled to the rotor core and to the plurality of core magnets. The end cap includes a plurality of deformable members positioned between the rotor core and the plurality of magnets and configured to restrict movement of the plurality of magnets within the radial apertures. The deformable members are configured to deform upon insertion into a cavity defined between the rotor core and the plurality of magnets.

公开(公告)号：US20230318377A1

公开(公告)日：2023-10-05

申请号：US17711484

申请日：2022-04-01

Applicant: Regal Beloit America, Inc.

Inventor： Emma Murphy ,  Matthew Scott ,  Stephen English

IPC: H02K1/28 ,  H02K1/276 ,  H02K15/03

CPC classification number: H02K1/28 ,  H02K1/2773 ,  H02K15/03

Abstract: A rotor assembly for use in a radial flux electric motor assembly is provided. The rotor assembly includes a rotor core having a plurality of circumferentially spaced rotor poles and a plurality of magnets alternately spaced with the plurality of rotor poles. The plurality of rotor poles define a radial aperture between each pair of circumferentially adjacent rotor poles, and each radial aperture is configured to receive a magnet of the plurality of magnets therein. The rotor assembly further includes an end cap coupled to the rotor core and to the plurality of core magnets. The end cap includes a plurality of deformable members positioned between the rotor core and the plurality of magnets and configured to restrict movement of the plurality of magnets within the radial apertures. The deformable members are configured to deform upon insertion into a cavity defined between the rotor core and the plurality of magnets.