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:
Aug. 22, 2000
Filed:
Mar. 15, 1999
Applicant:
Inventors:
Mineo Yamaguchi, Obu, JP;
Hideto Matsuzaki, Kosai, JP;
Keisuke Sasaki, Toyokawa, JP;
Masaaki Shimizu, Toyohashi, JP;
Shinji Iwama, Nagoya, JP;
Satoru Asai, Ichinomiya, JP;
Assignee:
Asmo, Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 58 ;
Abstract
A brushless motor includes a stator attached to a motor case and a rotor. A circuit substrate is attached to the motor case. The substrate includes an electric circuit, which supplies electric current to the stator thereby rotating the rotor. A fan generates and moves air in accordance with rotation of the rotor. A duct guides some of the air moved by the fan to the stator. A flange extends from the stator. The air guided by the duct flows along the flange. This structure reduces the size of the brushless motor while increasing its power.