Invention Grant
- Patent Title: Rotor including stacked cores, motor, method for manufacturing rotor, and method for manufacturing motor
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Application No.: US15338943Application Date: 2016-10-31
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Publication No.: US10432044B2Publication Date: 2019-10-01
- Inventor: Takaki Nose , Takumi Murayama , Toshihiro Nagata , Yuuma Kobayashi , Yuuji Yamashita , Takafumi Yamano , Daisuke Koyano
- Applicant: ASMO CO., LTD.
- Applicant Address: JP Kariya
- Assignee: Denso Corporation
- Current Assignee: Denso Corporation
- Current Assignee Address: JP Kariya
- Agency: Patterson, Thuente Pedersen, P.A.
- Priority: JP2015-216018 20151102; JP2016-012477 20160126; JP2016-024702 20160212; JP2016-100729 20160519; JP2016-164045 20160824; JP2016-164046 20160824; JP2016-164047 20160824; JP2016-208872 20161025
- Main IPC: H02K1/27
- IPC: H02K1/27 ; B21D28/26 ; H02K1/02 ; H02K1/14 ; H02K3/18 ; H02K5/16 ; H02K15/02 ; H02K15/03 ; H02K15/095 ; H02K21/14 ; H02K1/18 ; H02K1/28 ; H02K5/173

Abstract:
A rotor includes a rotor core, permanent magnets, and a tubular non-magnetic cover. The permanent magnets are arranged along an outer surface of the rotor core in the circumferential direction. The permanent magnets each include a curved outer surface as viewed in the axial direction. The tubular non-magnetic cover covers the outer surfaces of the permanent magnets. The rotor core includes at least two stacked cores. Each stacked core includes a stack of core sheets. One of the stacked cores is formed from a material having a lower hardness than the other stacked core.
Public/Granted literature
- US20170141628A1 ROTOR, MOTOR, METHOD FOR MANUFACTURING ROTOR, AND METHOD FOR MANUFACTURING MOTOR Public/Granted day:2017-05-18
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