公开(公告)号：US20210013765A1

公开(公告)日：2021-01-14

申请号：US16976783

申请日：2019-02-19

Applicant: Dyson Technology Limited

Inventor： David IONS ,  John Declan STOTT ,  Thomas Richard STAFFORD

IPC: H02K5/173 ,  H02K7/04 ,  H02K7/08 ,  H02K7/14 ,  H02K11/215 ,  H02K21/14 ,  H02K15/14

Abstract: An electric motor has a rotor assembly having a bearing, and a frame having a bearing seat. The bearing is received within the bearing seat. The bearing is secured to the bearing seat by a first adhesive located at a hidden interface defined between the bearing and the bearing seat. The bearing seat has a cut-out, and a portion of the bearing is exposed through the cut-out. The bearing is secured to the bearing seat by a second adhesive located at the cut-out.

公开(公告)号：US20210083545A1

公开(公告)日：2021-03-18

申请号：US16976787

申请日：2019-02-19

Applicant: DYSON TECHNOLOGY LIMITED

Inventor： David IONS ,  John Declan STOTT ,  Thomas Richard STAFFORD

IPC: H02K5/16 ,  H02K15/02

Abstract: A method of mounting a rotor assembly to a frame of an electric motor includes providing a rotor assembly having a bearing and a frame having a bearing seat. The method includes locating the bearing within the bearing seat, applying a first adhesive at a substantially hidden interface between the bearing and the bearing seat, applying a second adhesive at a substantially visible interface between the bearing and the bearing seat, and curing the first and second adhesives using different curing processes.

公开(公告)号：US20210006121A1

公开(公告)日：2021-01-07

申请号：US16976790

申请日：2019-02-19

Applicant: Dyson Technology Limited

Inventor： David IONS ,  John Declan STOTT ,  Thomas Richard STAFFORD

IPC: H02K5/173 ,  H02K7/04 ,  H02K7/08 ,  H02K7/14 ,  H02K15/14 ,  H02K11/215 ,  H02K21/14

Abstract: A method of mounting a rotor assembly to a frame of an electric motor. The method includes providing a rotor assembly having a bearing and a frame having a bearing seat. The bearing seat has an aperture. The bearing and/or the internal surface of the bearing seat has an annular groove. The method includes locating the bearing within the bearing seat. The method includes injecting an adhesive through the aperture into the annular groove. The method includes affecting relative movement between the bearing and the bearing seat. The method includes curing the adhesive.