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:
May. 03, 2005
Filed:
Nov. 21, 2003
Kouichiro Yonekura, Kamakura, JP;
Kouichiro Yonekura, Kamakura, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A stator () for a motor according to this invention has a substantially cylindrical shape and is disposed coaxially with respect to a substantially cylindrical rotor () which has permanent magnets. The stator () has a stator core () containing teeth () projecting towards the rotor (). Each tooth has a tooth body () on which a coil () is wound and a tooth tips () having a substantially arc-shaped surface. The tooth tip () faces the rotor () through the substantially arc-shaped surface and does not have the coil () wound thereon. The stator core has two types of steel plates () laminated in an axial direction. The centers (') of the tooth tips of the two types of steel plates () in a peripheral direction are offset in a peripheral direction from the center () of the tooth body in a peripheral direction. The two types of steel plates () have the tooth body () of the same shape.