ROTOR AND ELECTRIC MOTOR

WIPO Patent Application WO/2021/210249

A1

This rotor is provided with a rotor core having a plurality of first holes and a plurality of second holes and a plurality of first permanent magnets respectively disposed in the plurality of first holes. The plurality of first holes and the plurality of second holes are provided radially about the rotational axis. The plurality of first holes each extend in the radial direction of the rotor core. The length of each of the plurality of second holes in the radial direction of the rotor core is smaller than the length of each of the plurality of first holes in the radial direction of the rotor core. Each of the plurality of second holes is located closer to the inner side in the radial direction of the rotor core with respect to a first hole of the plurality of first holes, said first hole being adjacent to a second hole in the circumferential direction of the rotor core, and has a projection portion projecting toward the first hole adjacent to the second hole in the circumferential direction of the rotor core.

WO/2021/075747	HIGH-EFFICIENCY DC MOTOR
JP4036344	Integrated joint structure of rare earth magnet and metal material and its joining method
JP5762105	Manufacturing method of permanent magnet type rotary electric machine

SUZUKI KENTA
MORIMOTO EIKI
UKAJI HAJIME
TAMAMURA TOSHIYUKI
ASO NORITAKA

PCT/JP2021/004500

October 21, 2021

February 08, 2021

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PANASONIC IP MAN CO LTD (JP)

H02K1/27; H02K1/22

WO2011002043A1	2011-01-06
WO2013077109A1	2013-05-30
WO2018131393A1	2018-07-19

JP2017005857A	2017-01-05
JP2009296871A	2009-12-17
JPH08275419A	1996-10-18

KAMATA Kenji et al. (JP)

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