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Title:
ROTOR, MOTOR, AND DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039930
Kind Code:
A1
Abstract:
A rotor, comprising laminated magnetic steel plates. The magnetic steel plates have a plurality of groups of through holes that go through the magnetic steel plates. Each of the groups of through holes has a plurality of through holes, among which a magnet is housed in at least one through hole of each of the groups of through holes, and an electroconductive material is provided to at least some of those through holes of each group in which the magnet is not housed. When the rotor is viewed in the axial direction, the width of the flux path on one side of the magnet is greater than the width of the flux path on the other side of the magnet, on both circumferential sides near the magnet.

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Inventors:
HSU YU-WEI (TW)
LUO TA-YIN (TW)
LIN HSIN-NAN (TW)
YEN SHENG-CHAN (TW)
YAN GUO-JHIH (TW)
LIU CHENG-TSUNG (TW)
Application Number:
PCT/JP2020/032467
Publication Date:
March 04, 2021
Filing Date:
August 27, 2020
Export Citation:
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Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/27
Foreign References:
JP2006067772A2006-03-09
JP2000270525A2000-09-29
JP2006121765A2006-05-11
JP2010158085A2010-07-15
JPH08336246A1996-12-17
JP2008211934A2008-09-11
JP2011199946A2011-10-06
JP2006223052A2006-08-24
US20180083520A12018-03-22
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