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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 11025134 B1

PDFFull Text
Date of Patent:
Jun. 01, 2021

Filed:

Jul. 19, 2019

Motor and ducted fan having heat radiation portions for cooling magnets

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventor:

Andrii Pydin, Wako, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Amin, Turocy & Watson, LLP

Primary Examiner:

Tulsidas C Patel

Assistant Examiner:

Rashad H Johnson

Int. Cl.
CPC ...
H02K 9/06 (2006.01); H02K 1/27 (2006.01); H02K 15/03 (2006.01); H02K 21/12 (2006.01); H02K 9/02 (2006.01); H02K 9/24 (2006.01); H02K 9/04 (2006.01); H02K 9/22 (2006.01);
U.S. Cl.
CPC ...
H02K 9/06 (2013.01); H02K 1/272 (2013.01); H02K 1/276 (2013.01); H02K 1/2766 (2013.01); H02K 9/02 (2013.01); H02K 9/04 (2013.01); H02K 9/22 (2013.01); H02K 9/24 (2013.01); H02K 15/03 (2013.01); H02K 21/12 (2013.01);
Abstract

A motor includes: a rotor core which rotates about an axis; a plurality of magnets which extend in an axial direction of the axis inside the rotor core and are disposed in a circumferential direction; a shaft body which is disposed coaxially with the rotor core and has a hollow portion through which a fluid is able to pass from a first side to a second side in the axial direction; and a plurality of heat radiation portions which are disposed along the magnet in the circumferential direction and have a planar portion disposed to be parallel to a side surface of the magnet facing a radial direction, wherein the heat radiation portion extends to be closer to the second side than a second side core end surface located on the second side in the axial direction of the rotor core.

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