公开(公告)号：US20240297548A1

公开(公告)日：2024-09-05

申请号：US18578476

申请日：2022-07-12

申请人： Dyson Technology Limited

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

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

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

摘要： 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.