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 10931155 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 23, 2021

Filed:

May. 25, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Koji Yabe, Tokyo, JP;

Yoshikazu Fujisue, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); F24F 1/10 (2011.01); F24F 1/22 (2011.01); H02K 1/16 (2006.01); H02K 1/28 (2006.01); H02K 15/03 (2006.01); H02K 15/12 (2006.01);
U.S. Cl.
CPC ...
H02K 1/2766 (2013.01); F24F 1/10 (2013.01); F24F 1/22 (2013.01); H02K 1/16 (2013.01); H02K 1/28 (2013.01); H02K 15/03 (2013.01); H02K 15/12 (2013.01); H02K 2213/03 (2013.01);
Abstract

A rotor includes a first permanent magnet, a second permanent magnet, and an electromagnetic steel sheet. The electromagnetic steel sheet includes a magnet insertion hole, a projection, a first end part, a second end part (), a third end part, and a fourth end part. The rotor satisfies an expression of t≤2×w×sin(R/2)≤2×t, where t is a thickness of the electromagnetic steel sheet, R is an angle formed by the third end part and the fourth end part, and w is a distance from an intersection point of a straight line including the first end part and a straight line including the third end part to an intersection point of a straight line including the third end part and a straight line including the fourth end part.


Find Patent Forward Citations

Yabe, Koji. (2021). Rotor, electric motor, compressor, air conditioner, and method for manufacturing electric motor (U.S. Patent No. 10931155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10931155

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