Invention Grant
- Patent Title: Rotating electric machine having protective cover for improving rotor
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Application No.: US14892426Application Date: 2014-03-12
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Publication No.: US10411549B2Publication Date: 2019-09-10
- Inventor: Yohei Kono , Hisashi Wada , Junnosuke Nakatsugawa , Ippei Suzuki
- Applicant: Hitachi Automotive Systems, Ltd.
- Applicant Address: JP Hitachinaka-shi
- Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee: Hitachi Automotive Systems, Ltd.
- Current Assignee Address: JP Hitachinaka-shi
- Agency: Crowell & Moring LLP
- Priority: JP2013-105725 20130520
- International Application: PCT/JP2014/056391 WO 20140312
- International Announcement: WO2014/188766 WO 20141127
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K5/128 ; H02K1/30

Abstract:
A small and low-price rotating electric machine has a structure where a magnet end surface and a metal tube end are not in contact with each other. The rotating electric machine has a cylindrical stator core, a rotor having a shaft provided on the inner circumferential side of the stator core, a yoke fixed to the shaft, at least one ferrite magnet provided on the outer circumferential surface of the yoke, and a protective cover provided on the outer circumference of the ferrite magnet. The ferrite magnet end surface is projected with respect to an end surface of the yoke, and has a step portion to form a gap between the end surface of the ferrite magnet and a bottom surface of the protective cover.
Public/Granted literature
- US20160149461A1 Rotating Electric Machine Public/Granted day:2016-05-26
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