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:
Dec. 18, 2012
Filed:
Nov. 01, 2010
Keiji Kondou, Toyota, JP;
Makoto Taniguchi, Obu, JP;
Takeo Maekawa, Okazaki, JP;
Akira Fukushima, Kariya, JP;
Akito Akimoto, Kariya, JP;
Shin Kusase, Obu, JP;
Yuya Mizuma, Gamagori, JP;
Keiji Kondou, Toyota, JP;
Makoto Taniguchi, Obu, JP;
Takeo Maekawa, Okazaki, JP;
Akira Fukushima, Kariya, JP;
Akito Akimoto, Kariya, JP;
Shin Kusase, Obu, JP;
Yuya Mizuma, Gamagori, JP;
Denso Corporation, Kariya, JP;
Abstract
A stator includes a stator-core having slots and teeth, and a back-yoke having convex and concave portions. The convex portions are partially inserted into the slots, and the concave portions receive the teeth. The teeth include tip portions whose circumferential widths become larger along a radial direction from the inside to the outside of the stator. The back-yoke includes convex portions whose circumferential widths become larger along the radial direction from the outside to the inside of the stator. The tip portions and the convex portions have substantially the same shape. The length of a joint portion between the tip portion and the convex portion, the circumferential width of the tooth corresponding to a tip surface of the convex portion, the width of a root portion of the tooth, and the circumferential width of the convex portion corresponding to a bottom face of the concave portion are substantially the same.