Invention Grant
- Patent Title: Axial-type rotary electric machine
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Application No.: US14780658Application Date: 2014-01-22
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Publication No.: US09935510B2Publication Date: 2018-04-03
- Inventor: Hirooki Tokoi , Yuji Enomoto , Toshifumi Suzuki , Shuichi Takahashi , Kenichi Souma
- 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: JP2013-135747 20130628
- International Application: PCT/JP2014/051193 WO 20140122
- International Announcement: WO2014/208110 WO 20141231
- Main IPC: H02K1/02
- IPC: H02K1/02 ; H02K1/27 ; H02K21/24

Abstract:
An axial-type rotary electric machine that improves a torque and an efficiency relative to a size of a rotor is provided. The axial-type rotary electric machine is provided with a stator having a stator core, and a rotor facing the stator along an axial direction of a rotation axis passing through the stator. The rotor includes a permanent magnet arranged so as to face the stator core in the axial direction of the rotation axis, a yoke arranged so as to face the stator core across the permanent magnet, and a support member supporting the yoke. The support member includes a protrusion protruding so as to face a side surface of the permanent magnet that is on the farther side to the rotation axis. In projection along the axial direction of the rotation axis, a first region where a projecting portion of the permanent magnet does not overlap a projecting portion of the yoke is formed in the permanent magnet, and the first region is formed on the outer-diameter side of the permanent magnet and the first region is formed on a side of the protrusion.
Public/Granted literature
- US20160065020A1 Axial-Type Rotary Electric Machine Public/Granted day:2016-03-03
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