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 7800261 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 21, 2010

Filed:

Jul. 17, 2006
Applicants:

Shigenobu Nakamura, Anjo, JP;

Seiji Kondoh, Nagoya, JP;

Inventors:

Shigenobu Nakamura, Anjo, JP;

Seiji Kondoh, Nagoya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to the present invention, a rotary electric machine includes a rotor with a rotary shaft, a stator surrounding an outer periphery of the rotor, and a frame supporting the rotor and the stator. Further, the stator has an outer surface at least part of which is exposed to outside of the frame, and a plurality of protrusions and recesses are formed on the exposed part of the outer surface of the stator, so as to enhance dissipation of heat generated by operation of the rotary electric machine. According to a further implementation of the present invention, the rotor includes at least one fan that works to create air flow, and the protrusions and the recesses are so formed that the recesses make up air flow paths, along which the air flow created by the fan passes over the outer surface of the stator, thereby cooling the outer surface.


Find Patent Forward Citations

Nakamura, Shigenobu. (2010). Rotary electric machine with stator outer surface designed to enhance heat dissipation (U.S. Patent No. 7800261). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7800261

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