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:
Oct. 25, 2005
Filed:
Apr. 06, 2004
Mitsuharu Hashiba, Tokyo, JP;
Nobuhiro Kihara, Tokyo, JP;
Mitsuharu Hashiba, Tokyo, JP;
Nobuhiro Kihara, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A rise in temperature of magneto coils can be suppressed, thereby improving the electrical efficiency, service life and reliability thereof. A flywheel () has a cylindrical portion (), and is rotatable about an axis of rotation A—A. A plurality of magnets () are mounted on an inner peripheral surface of the flywheel () so as to rotate therewith. A stator core () has a plurality of teeth () protruded outwardly in a diametral direction, and is disposed in opposition to the magnets (). Conductive wires are wound around the teeth (), respectively, to form magneto coils (). The stator core () has a laminated core () formed of a plurality of magnetic sheet steel plates laminated one over another, and a pair of end plates () disposed so as to sandwich opposite side surfaces of the laminated core (). At least one of the pair of end plates () is made of aluminum whose heat radiation is higher than the magnetic sheet steel plates.