公开(公告)号：WO2019166778A1

公开(公告)日：2019-09-06

申请号：PCT/GB2019/050451

申请日：2019-02-19

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: H02K5/16 ,  H02K5/173 ,  H02K15/16 ,  H02K1/28

Abstract: Mounting method of a rotor assembly (12) into a frame (14) of an electric motor (10) includes providing a rotor assembly (12) having a shaft (16) and at least one bearing (26) and providing a frame (14) having a stator core (52) and a bearing seat (44). The bearing seat (44) has an aperture (48). The bearing (26) or the internal surface of the bearing seat (44) comprises an annular groove (34). After inserting the bearing (26) in the bearing seat (44) a first adhesive 35 is injected through the aperture 48 into the annular groove (34). Thereafter, a relative movement between the bearing (26) and the bearing seat (44) is affected and finally the adhesive is cured.

公开(公告)号：WO2019166777A1

公开(公告)日：2019-09-06

申请号：PCT/GB2019/050450

申请日：2019-02-19

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: H02K5/173 ,  H02K1/28 ,  H02K5/16 ,  H02K15/16

Abstract: A method of mounting a rotor assembly to a frame of an electric motor (10) includes a step of providing a rotor assembly having a bearing (26) and a frame having a bearing seat (44). The method includes a further step of locating the bearing (26) within the bearing seat (44), than the step of applying a first adhesive (35) at a substantially hidden interface between the bearing (26) and the bearing seat (44), than the step of applying a second adhesive (37) at an interface substantially visible from outside between bearing (26) and bearing seat (44). Two final steps are curing the first adhesive and the second adhesive using two different curing processes.

公开(公告)号：WO2019166776A1

公开(公告)日：2019-09-06

申请号：PCT/GB2019/050449

申请日：2019-02-19

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: H02K5/16 ,  H02K5/173 ,  F04D25/06

Abstract: An electric motor (10) has a rotor assembly (12) having a bearing (26), and a frame (14) having a bearing seat (44). The bearing (26) is received within the bearing seat (44). The bearing (26) is secured to the bearing seat (44) by a first adhesive located at a hidden interface defined between the bearing (26) and the bearing seat (44). The bearing seat (44) has a cut-out (50), and a portion of the bearing (26) is exposed through the cut-out (50). The bearing (26) is secured to the bearing seat (44) by a second adhesive located at the cut-out (50).

公开(公告)号：WO2023285808A1

公开(公告)日：2023-01-19

申请号：PCT/GB2022/051803

申请日：2022-07-12

Applicant: DYSON TECHNOLOGY LIMITED

Inventor： ARROYO CASTILLEJA, Antonio ,  HALHEAD, Thomas ,  FAVENTI, Roberto ,  LIU, Michael ,  TYLER, Jamie ,  MORABE, Japhet Lee ,  STAFFORD, Thomas

IPC: H02K5/173

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：WO2019166774A1

公开(公告)日：2019-09-06

申请号：PCT/GB2019/050446

申请日：2019-02-19

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: H02K1/14 ,  H02K3/52 ,  H02K9/06

Abstract: A brushless motor (10) has a rotor assembly (12) comprising a shaft (30), an impeller (42), a bearing assembly 38,40 and a rotor core (32). The brushless motor (10) has a stator assembly 16, 18,20,22, and a frame (14) having an outer portion (90) and an inner portion (92) radially inward of the outer portion (90). The inner portion (92) supports at least one of the rotor assembly (12) and the stator assembly (16, 18,20,22). The brushless motor (10) has a strut (94,96,98, 100) extending between the outer portion (90) and the inner portion (92). The strut (94,96,98, 100) extends at least partially into a recess (120) formed in the stator assembly (16, 18,20,22).

公开(公告)号：WO2023285809A1

公开(公告)日：2023-01-19

申请号：PCT/GB2022/051804

申请日：2022-07-12

Applicant: DYSON TECHNOLOGY LIMITED

Inventor： MORLEY, Harry ,  STAFFORD, Thomas ,  MORABE, Japhet Lee ,  TOWNEND, Christopher

IPC: H02K1/14 ,  H02K15/12

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：WO2019220071A1

公开(公告)日：2019-11-21

申请号：PCT/GB2019/050680

申请日：2019-03-12

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: F04D17/06 ,  F04D29/44 ,  F04D29/62

Abstract: A compressor (10) has a rotor assembly (12) having an impeller (42) for generating an airflow through the compressor (10), a stator core assembly (16, 18,20,22) for causing rotation of the impeller (42), and a diffuser assembly (28) for acting on the airflow generated by the impeller (42). The diffuser assembly (28) has a first diffuser stage (100) and a second diffuser stage (200). The first (100) and second (200) diffuser stages are separate components connected to one another by a fastener (108).