公开(公告)号：US20210367476A1

公开(公告)日：2021-11-25

申请号：US16976780

申请日：2019-02-19

Applicant: Dyson Technology Limited

Inventor： Thomas Richard STAFFORD ,  Vadivel Kumaran SIVASHANMUGAM ,  Lukasz Andrzej KOWALCZYK

IPC: H02K5/24 ,  H02K1/14 ,  H02K3/52 ,  H02K9/06 ,  H02K1/18

Abstract: A brushless motor has a rotor assembly including a shaft, an impeller, a bearing assembly and a rotor core. The brushless motor has a stator assembly and a frame having an outer portion and an inner portion radially inward of the outer portion. The inner portion supports at least one of the rotor assembly and the stator assembly. The brushless motor has a strut extending between the outer portion and the inner portion. The strut extends at least partially into a recess formed in the stator assembly.

公开(公告)号：US20240297547A1

公开(公告)日：2024-09-05

申请号：US18578441

申请日：2022-07-12

Applicant: Dyson Technology Limited

Inventor： Harry Alexander MORLEY ,  Thomas Richard STAFFORD ,  Japhet Lee Cordova MORABE ,  Christopher David TOWNEND

IPC: H02K3/52 ,  A47L5/24 ,  H02K5/173 ,  H02K7/08 ,  H02K15/12 ,  H02K21/16

CPC classification number: H02K3/522 ,  A47L5/24 ,  H02K5/1732 ,  H02K7/083 ,  H02K15/12 ,  H02K21/16 ,  H02K2203/12

Abstract: A brushless motor has a stator assembly, and a frame within which the stator assembly is housed. The stator assembly has a plurality of stator core sub-assemblies, each having a stator core, a bobbin attached to the stator core, and a winding wound about the bobbin. Each bobbin has a connection portion for connecting to an adjacent bobbin in the stator assembly, and the frame is overmoulded to the stator assembly.

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：US20240297548A1

公开(公告)日：2024-09-05

申请号：US18578476

申请日：2022-07-12

Applicant: Dyson Technology Limited

Inventor： Antonio Jose ARROYO CASTILLEJA ,  Thomas Edward HALHEAD ,  Roberto FAVENTI ,  Michael Chung Kau LIU ,  Jamie Lee TYLER ,  Japhet Lee Cordova MORABE ,  Thomas Richard STAFFORD

IPC: H02K5/173 ,  A47L5/24 ,  F16C19/08 ,  H02K3/52 ,  H02K7/08 ,  H02K21/16

CPC classification number: H02K5/1732 ,  A47L5/24 ,  F16C19/08 ,  H02K3/522 ,  H02K7/083 ,  H02K21/16 ,  F16C2380/26 ,  H02K2203/12

Abstract: A brushless motor having a stator assembly, a rotor assembly rotatable relative to the stator assembly, and a frame within which the stator assembly and the rotor assembly are housed. The rotor assembly includes a shaft, first and second bearings attached to the shaft, and a permanent magnet attached to the shaft between the first and second bearings. The rotor assembly includes an impeller attached to the shaft, with the first bearing located further away from the impeller than the second bearing. The rotor assembly includes an o-ring mounted between the first bearing and the frame.

公开(公告)号：US20210207617A1

公开(公告)日：2021-07-08

申请号：US17056361

申请日：2019-03-12

Applicant: Dyson Technology Limited

Inventor： Mark Andrew JOHNSON ,  Simon Alexander LOCKE ,  Matthew John CHILDE ,  Cathal CLANCY ,  Vadivel Kumaran SIVASHANMUGAM ,  Nora ER-ROUHLY ,  Lukasz Andrzej KOWALCZYK ,  Alan Glynn SANDERSON ,  Thomas Richard STAFFORD ,  Sarah Elizabeth ELSON ,  Alexander Thomas WELLS ,  Jim Ray LLUISMA

IPC: F04D29/44 ,  F04D29/28 ,  A47L5/22

Abstract: A compressor has a rotor assembly having an impeller for generating an airflow through the compressor, a stator core assembly for causing rotation of the impeller, and a diffuser assembly for acting on the airflow generated by the impeller. The diffuser assembly has a first diffuser stage and a second diffuser stage. The first and second diffuser stages are separate components connected to one another by a fastener.

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.