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Title:
ROTOR, SPOKE-TYPE MOTOR, VEHICLE MOTOR, UNMANNED FLYING BODY, ELECTRIC ASSIST DEVICE, AND ROBOT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/066003
Kind Code:
A1
Abstract:
This rotor according to one embodiment comprises: a shaft; a rotor core having an inner core part disposed outside in the radial direction of the shaft along the circumferential direction, and a plurality of outer core parts disposed outside in the radial direction of the inner core part and separated from one another along the circumferential direction; a plurality of permanent magnets disposed alternately with the outer core parts outside in the radial direction of the shaft in the circumferential direction, the permanent magnets exciting the outer core parts; and a supporting body which supports the permanent magnets. The supporting body has an outer supporting part fixed to outside in the radial direction of the outer core parts and supporting end surfaces of the permanent magnets from both sides in the circumferential direction, and/or an inner supporting part fixed to inside in the radial direction of the outer core parts and supporting end surfaces of the permanent magnets from both sides in the circumferential direction. The outer core parts each have an opposing surface which parallelly opposes the end surfaces of the permanent magnets in the circumferential direction. The outer supporting part and the inner supporting part each have a supporting surface which supports the end surface in the circumferential direction. The supporting surfaces are disposed more on the center line side of the permanent magnets in the circumferential direction than the opposing surfaces.

Inventors:
UEDA TOMOYA (JP)
TAKEMOTO SHINJI (JP)
ISOGAI YUSUKE (JP)
Application Number:
PCT/JP2018/036372
Publication Date:
April 04, 2019
Filing Date:
September 28, 2018
Export Citation:
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Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/27; H02K1/22; H02K15/03; H02K21/14
Domestic Patent References:
WO2011114594A12011-09-22
Foreign References:
JP2013123365A2013-06-20
JP2013021844A2013-01-31
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