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.:
Date of Patent:
Dec. 23, 2025
Filed:
Feb. 23, 2023
Applicant:
Rivian Ip Holdings, Llc, Plymouth, MI (US);
Inventors:
Gary Allen Pinkley, Northville, MI (US);
Lon C Cooper, Redondo Beach, CA (US);
Chao Wang, Ann Arbor, MI (US);
Assignee:
Rivian IP Holdings, LLC., Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 11/40 (2016.01); H02K 1/2706 (2022.01); H02K 1/32 (2006.01); H02K 5/124 (2006.01); H02K 7/00 (2006.01);
U.S. Cl.
CPC ...
H02K 1/32 (2013.01); H02K 1/2706 (2013.01); H02K 5/124 (2013.01); H02K 7/003 (2013.01);
Abstract
Systems and method to control rotor voltage of a liquid cooled motor are provided. A system can include a rotor, a shaft, and a ring. The ring can be disposed on the shaft. The ring can include a first lip in contact with an inner surface of the rotor and a second lip in contact with the inner surface of the rotor and a cooling liquid. The first lip can provide an electrical path to discharge a voltage from the rotor. The second lip can provide a seal between the first lip and the cooling liquid.