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.

Date of Patent:
Nov. 14, 2006

Filed:

May. 25, 2004
Applicants:

Masahiro Seki, Saitama, JP;

Nobuyuki Imai, Saitama, JP;

Shin Aoki, Saitama, JP;

Hiroyuki Kikuchi, Saitama, JP;

Tadanobu Takahashi, Saitama, JP;

Shigeru Tajima, Saitama, JP;

Inventors:

Masahiro Seki, Saitama, JP;

Nobuyuki Imai, Saitama, JP;

Shin Aoki, Saitama, JP;

Hiroyuki Kikuchi, Saitama, JP;

Tadanobu Takahashi, Saitama, JP;

Shigeru Tajima, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/14 (2006.01); H02K 1/20 (2006.01); H02K 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A claw pole motor stator includes teeth for N phases (N being a natural number of 3 or more), for example, U-phase, V-phase, and W-phase teeth juxtaposed in an axial direction, return paths for interconnecting the U-phase, V-phase, and W-phase teeth, and (N−1) annular slots formed between the U-phase, V-phase, and W-phase teeth. A U-phase coil and one V-phase coil are housed in one annular slot, and another V-phase coil and a W-phase coil are housed in the other annular slot. In this way, only N sets of teeth and N−1 annular slots are provided for N phases, and thus it is possible to minimize the thickness in the axial direction of the stator compared with a conventional stator which requires 2N sets of teeth and N annular slots for N phases.


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