公开(公告)号：US11901795B1

公开(公告)日：2024-02-13

申请号：US18316931

申请日：2023-05-12

Applicant: ARCHER AVIATION, INC.

Inventor： Scott Graves ,  Diego Silva

IPC: H02K7/00 ,  H02K1/27 ,  B64D27/24 ,  H02K1/32 ,  H02K15/03 ,  B64C29/00

CPC classification number: H02K7/006 ,  B64C29/0033 ,  B64D27/24 ,  H02K1/27 ,  H02K1/32 ,  H02K15/03

Abstract: A rotor assembly has a sleeve, a rotor hub, a lamination core, and a plurality of tapered magnets disposed circumferentially around an inner diameter of the sleeve. The plurality of tapered magnets are configured to abut on one another. The plurality of tapered magnets includes a first set of tapered magnets and a second set of tapered magnets. Insertion of the first set of tapered magnets axially relative to the second set of tapered magnets is configured to increase a diameter of the sleeve. The rotor hub is configured to retain at least one of the lamination core, the plurality of tapered magnets, or the sleeve.