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:
May. 25, 2021
Filed:
Mar. 18, 2019
Applicant:
Nidec Corporation, Kyoto, JP;
Inventor:
Tomoyoshi Sawada, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/30 (2006.01); H02K 1/27 (2006.01); H02K 15/03 (2006.01); H02K 11/33 (2016.01); A47L 5/22 (2006.01); F04D 25/06 (2006.01); H02K 7/08 (2006.01); H02K 7/14 (2006.01); H02K 21/16 (2006.01); H02K 1/28 (2006.01); F04D 29/02 (2006.01);
U.S. Cl.
CPC ...
H02K 1/30 (2013.01); A47L 5/22 (2013.01); F04D 25/0606 (2013.01); F04D 29/023 (2013.01); H02K 1/2726 (2013.01); H02K 1/2733 (2013.01); H02K 1/28 (2013.01); H02K 7/083 (2013.01); H02K 7/14 (2013.01); H02K 11/33 (2016.01); H02K 21/16 (2013.01); F05D 2230/23 (2013.01); H02K 15/03 (2013.01); H02K 2211/03 (2013.01);
Abstract
A rotor assembly includes a shaft disposed along a central axis extending vertically, a tubular magnet disposed on a radially outer surface of the shaft, a lower spacer disposed axially below the magnet and fixed to the radially outer surface of the shaft, a shaft adhesive film attaching the shaft to the magnet, and a lower spacer adhesive film attaching an axially upper surface of the lower spacer to an axially lower surface of the magnet. The shaft adhesive film and the lower spacer adhesive film are an identical adhesive and are continuously formed.