PERMANENT MAGNET EMBEDDED MOTOR, COMPRESSOR AND FREEZING AIR CONDITIONER

WIPO Patent Application WO/2014/125599

A1

The outer peripheral surface (25) of a rotor is constituted by a first arc (29) and a second arc (31). The first arc is located at the center of a magnetic pole and the second arc is located at an inter-pole section; the first arc expands radially, further outside than the second arc. An air gap (15) is formed increasing in size from the center of each of the magnetic poles toward the adjacent inter-pole sections. The radially-outside hole-forming section of a magnet insertion hole has the curve of a third arc (33) and the radially-inside hole-forming section of the magnet insertion hole has the curve of a fourth arc (35). The opening angle of a tooth tip (7a), the opening angle of the first arc, and the opening angle of the third arc are equal to each other.

JP2005253265	PERMANENT MAGNET SYNCHRONOUS MOTOR AND METHOD FOR ADJUSTING FIELD MAGNETIC FLUX THEREOF
JP2022098964	ROTOR, ROTARY ELECTRIC MACHINE, AND VEHICLE
JPH04118750	[Title of the device] Magnet flywheel

NIGO MASAHIRO (JP)
BABA KAZUHIKO (JP)
TSUCHIDA KAZUCHIKA (JP)

PCT/JP2013/053532

August 21, 2014

February 14, 2013

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MITSUBISHI ELECTRIC CORP (JP)
NIGO MASAHIRO (JP)
BABA KAZUHIKO (JP)
TSUCHIDA KAZUCHIKA (JP)

H02K1/27; H02K21/16

JP4452488B2	2010-04-21
JP2012016244A	2012-01-19
JP2003284275A	2003-10-03
JP2001327130A	2001-11-22

SOGA, Michiharu et al. (JP)
Michiharu Soga (JP)

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