Invention Grant
- Patent Title: Motor
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Application No.: US14874596Application Date: 2015-10-05
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Publication No.: US10069372B2Publication Date: 2018-09-04
- Inventor: Eiji Furutachi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2014-188358 20140917; JP2015-073138 20150331
- Main IPC: H02K1/04
- IPC: H02K1/04 ; H02K5/16 ; H02K1/27 ; H02K9/06 ; H02K11/00 ; H02K1/30 ; H02K5/173

Abstract:
The motor comprises a rotary unit, a stationary unit disposed around the rotary unit, and a bearing mechanism. The rotary unit comprises a plurality of magnets, a rotor core, a resin portion which covers the plurality of magnets and the rotor core. The rotor core comprises a ring-shaped inner core portion disposed at a radially inner side of the plurality of magnets, an outer core portion, and a plurality of connecting portions which radially connects the plurality of core elements, which are disposed between the plurality of magnets, and the inner core portion. The resin portion comprises an upper resin portion and a lower resin portion. The upper resin portion includes a plurality of gate holes. The lower resin portion is disposed at a more radially inner side than the plurality of outer core elements, and further comprises a first core support mark which exposes a part of the bottom surface of the rotor core, and a second core support mark disposed in the outer core part, and exposes a part of the bottom surface of the rotor core.
Public/Granted literature
- US20160079819A1 MOTOR Public/Granted day:2016-03-17
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