Invention Grant
- Patent Title: Rotating electric machine or wind power generation system
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Application No.: US15303629Application Date: 2014-08-06
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Publication No.: US10177621B2Publication Date: 2019-01-08
- Inventor: Naoki Kunihiro , Daisuke Kori , Motonobu Iizuka , Tetsuo Fujigaki , Atsushi Fukunaga , Yasunori Otsuki , Masakatsu Sato , Masanori Matsumoto , Takeshi Nakayama , Masaaki Endo , Yoshihiro Yasui , Yasushi Hayasaka
- Applicant: Hitachi, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2014-082430 20140414
- International Application: PCT/JP2014/070664 WO 20140806
- International Announcement: WO2015/159447 WO 20151022
- Main IPC: H02K3/51
- IPC: H02K3/51 ; H02K7/18 ; F03D9/25 ; F03D1/06 ; H02K19/26

Abstract:
A rotating electric machine comprises a field winding provided on a rotor iron core and a neutral ring supported independently of the field winding, wherein: the field winding and the neutral ring are electrically connected to each other through a connecting wire; the neutral ring is disposed spaced with respect to the rotor iron core; and the connecting wire absorbs the stress difference between the field winding and the neutral ring when a centrifugal stress is applied.
Public/Granted literature
- US20170117769A1 Rotating Electric Machine or Wind Power Generation System Public/Granted day:2017-04-27
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