ROTOR AND ROTARY ELECTRIC MACHINE

WIPO Patent Application WO/2017/195498

A1

According to the present invention: a plurality of first iron core pieces (311) and a plurality of second iron core pieces (312) each having an insertion hole (7), into which a magnet (6) is inserted, are formed so as to be stacked; a bridge part (9) is formed between an end, of the insertion hole (7), on the outer peripheral surface (31A) side of an iron core piece (31) and the outer peripheral surface (31A) of the iron core piece (31); the bridge part (9) has a first end (9A), a second end (9B), and a third end (9C); the first end (9A), the second end (9B), and the third end (9C) are formed such that the radius (R2) of an arc surface of the second end (9B) is larger than the radius (R1) of an arc surface of the first end (9A) and larger than the radius (R3) of an arc surface of the third end (9C); and each first iron core piece (311) and each second iron core piece (312) are formed such that the distance (W2), in the second iron core piece (312), from the bridge part (9) to the outer peripheral surface (31A) of the iron core piece (31) is shorter than the distance (W1), in the first iron core piece (311), from the bridge part (9) to the outer peripheral surface (31A) of the iron core piece (31).

NAKANO AIKO (JP)
TSUIKI HIRONORI (JP)
SAKAUE ATSUSHI (JP)

PCT/JP2017/013730

November 16, 2017

March 31, 2017

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MITSUBISHI ELECTRIC CORP (JP)

H02K1/27; H02K1/22

JP2006109683A	2006-04-20
JP2013255326A	2013-12-19
JP2011004480A	2011-01-06
JP2014054046A	2014-03-20
JP2002010547A	2002-01-11
JP2007336671A	2007-12-27
JP2014100048A	2014-05-29
JPH11318049A	1999-11-16
EP2187503A2	2010-05-19

MURAKAMI Keigo et al. (JP)

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