Invention Grant
- Patent Title: Axial air gap type electric motor
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Application No.: US15304248Application Date: 2014-12-22
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Publication No.: US10536042B2Publication Date: 2020-01-14
- Inventor: Toru Sakai , Daisaku Takahashi , Jun Sakurai , Shuuichi Takahashi , Hirooki Tokoi , Yukimasa Maeda
- 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
- Priority: JP2014-082445 20140414
- International Application: PCT/JP2014/083818 WO 20141222
- International Announcement: WO2015/159461 WO 20151022
- Main IPC: H02K1/14
- IPC: H02K1/14 ; H02K1/18

Abstract:
An axial air gap type electric motor includes: a stator with stator cores in a ring shape around a rotating shaft and including a laminated iron core that is a prismatic body of metal plate-like members laminated in a radial direction of the rotating shaft, a tubular bobbin with an inner diameter into which the laminated iron core is inserted, and a coil wound on the extension of the outer diameter of the laminated iron core; and a rotor plane-facing the rotating shaft direction end section of the stator with a predetermined air gap interposed therebetween. The laminated iron core includes: a core member with continuously laminated metal plate-like members, the widths of which increase in a rotational direction of the rotating shaft from the center toward a radial direction; and a core member with continuously laminated metal plate-like members, the widths of which are substantially equal.
Public/Granted literature
- US20170093232A1 Axial Air Gap Type Electric Motor Public/Granted day:2017-03-30
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