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:
Jun. 05, 2007
Filed:
Aug. 18, 2004
Naruhiko Kudo, Nagano, JP;
Hiromitsu Kuribayashi, Nagano, JP;
Toshiya Nishizawa, Nagano, JP;
Sanyo Denki Co., Ltd., Tokyo, JP;
Abstract
There is provided a fan motor in which an increase in the temperature of windings thereof is surpressed, thereby achieving a long life and high performance. Vent holesfor introducing air into a cup-like memberare formed in a bottom wall sectionof a rotor. Air flowing direction adjusting ribs, which are arranged at intervals in a peripheral direction and each of which extends in a radial direction, are integrally provided on the inner surface of the bottom wall sectionso that air flown out of exitsof the vent holesis directed toward windings. In addition to the air flowing direction adjusting ribs, a plurality of air stirring ribsfor stirring the air inside the cup-like memberis arranged on the inner surface of the bottom wall section