Invention Grant
- Patent Title: Rotary electric machine, crank-shaped continuously winding coil, distribution winding stator and forming method thereof
- Patent Title (中): 旋转电机,曲柄连续卷绕线圈,分配绕组定子及其成形方法
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Application No.: US11874291Application Date: 2007-10-18
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Publication No.: US07825562B2Publication Date: 2010-11-02
- Inventor: Takashi Naganawa , Takashi Ishigami , Hiromichi Hiramatsu , Kenichi Nakayama , Tsuyoshi Goto , Yoshimi Mori , Tomohiro Adachi
- Applicant: Takashi Naganawa , Takashi Ishigami , Hiromichi Hiramatsu , Kenichi Nakayama , Tsuyoshi Goto , Yoshimi Mori , Tomohiro Adachi
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2006-284780 20061019
- Main IPC: H02K3/04
- IPC: H02K3/04

Abstract:
In a distribution winding stator using a coil for a rectangular conductor, a coil end is made smaller than before, and the reduction in the current density is aimed, so that a rotary electric machine of a small size and a high power output is obtained. A conductive wire of a rectangular shape in cross section is double-wound, and is allowed to be shifted by the whole width of the wire having double-wound the crowns of both ends, and is formed to crank shape so as to become a length within the range of the intervals of the adjacent slots, so that the conductive wire is formed by being inserted into the slot of the stator.
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