Invention Grant
- Patent Title: Axial air gap rotating electric machine
-
Application No.: US15303055Application Date: 2014-04-11
-
Publication No.: US10530210B2Publication Date: 2020-01-07
- Inventor: Hirooki Tokoi , Shuuichi Takahashi , Yasuei Yoneoka , Toshifumi Suzuki , Toru Sakai , Katsuyuki Yamazaki , Ryousou Masaki , Norihisa Iwasaki , Yuji Enomoto
- Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
- Current Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- International Application: PCT/JP2014/060450 WO 20140411
- International Announcement: WO2015/155879 WO 20151015
- Main IPC: H02K3/34
- IPC: H02K3/34 ; H02K21/24 ; H02K7/08 ; H02K1/18

Abstract:
To ensure ready assembly of a stator and reliably reduce the shaft voltage in an axial air gap rotating electric machine, an axial air gap rotating electric machine has a circular ring-shaped stator formed by a plurality of stator cores arranged about a rotational axis direction in a ring shape. Each stator core comprises a tubular bobbin and a coil, with the tubular bobbin having an iron core inserted into a bobbin inner tubular portion substantially matching the peripheral shape of the iron core. The axial air gap rotating electric machine has a first conductive member having a horizontal portion and a vertical portion contacting the end surface of the bobbin opening portion. The horizontal portion contacts parts of the iron core outer peripheral surface and the inner peripheral surface of the bobbin inner tubular portion, and the vertical portion is conductively connected to the inner circumferential housing surface.
Public/Granted literature
- US20170155297A1 Axial Air Gap Rotating Electric Machine Public/Granted day:2017-06-01
Information query