公开(公告)号：US20210408858A1

公开(公告)日：2021-12-30

申请号：US17474687

申请日：2021-09-14

Applicant: ROLLS-ROYCE plc

Inventor： Alexis LAMBOURNE ,  Iain TODD ,  Geraint W. JEWELL

IPC: H02K3/28 ,  H01F41/04 ,  H02K3/12 ,  H02K3/32 ,  H02K15/02 ,  H02K15/04 ,  H02K19/02 ,  H02K3/26 ,  B33Y80/00 ,  H02K15/00 ,  H02K3/18 ,  H01F5/06 ,  B33Y10/00 ,  B05D5/12

Abstract: A 3D printed metal coil for an electrical machine. The 3D printed coil has a plurality of turns and is configured to fit within a slot in an electrical machine. A cross-sectional shape of successive turns of the plurality of turns varies such that a portion of each turn forms a part of an external surface of the metal coil, the external surface forming an interface with a side of the slot.

公开(公告)号：US20200098492A1

公开(公告)日：2020-03-26

申请号：US16558640

申请日：2019-09-03

Applicant: ROLLS-ROYCE plc

Inventor： Alexis LAMBOURNE ,  Alexander C. SMITH ,  Jameel B. KHAN

IPC: H01B13/00 ,  H02K3/50 ,  H01B19/00 ,  H02K15/00 ,  H02K3/34

Abstract: A method of manufacturing a winding assembly for an electrical machine, the method comprising: forming, by three-dimensional, 3D, printing, an electrically insulating body comprising a channel defining a winding path, the channel having an inlet and an outlet; heating the electrically insulating body to a temperature above the melting point of an electrically conducting material; flowing the electrically conducting material through the inlet to the outlet to fill the channel; and cooling the electrically insulating body to solidify the electrically conducting material within the channel, thereby forming said winding assembly.