The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11901795 B1

Date of Patent:

Feb. 13, 2024

Filed:

May. 12, 2023

Rotor assembly including tapered magnets within a retaining sleeve and a method for assembling the same

Applicant:

Archer Aviation, Inc., San Jose, CA (US);

Inventors:

Scott Graves, San Jose, CA (US);

Diego Silva, San Jose, CA (US);

Assignee:

ARCHER AVIATION, INC., San Jose, CA (US);

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP.

Primary Examiner:

Brady W Frazier

Int. Cl.

CPC ...

H02K 7/00 (2006.01); H02K 1/27 (2022.01); B64D 27/24 (2006.01); H02K 1/32 (2006.01); H02K 15/03 (2006.01); B64C 29/00 (2006.01);

U.S. Cl.

CPC ...

H02K 7/006 (2013.01); B64C 29/0033 (2013.01); B64D 27/24 (2013.01); H02K 1/27 (2013.01); H02K 1/32 (2013.01); H02K 15/03 (2013.01);

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.

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