ROTOR AND ROTATING ELECTRICAL MECHANISM USING SAME

Title:

ROTOR AND ROTATING ELECTRICAL MECHANISM USING SAME

Document Type and Number:

WIPO Patent Application WO/2012/132331

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a rotating electrical mechanism comprising a rotor having rotor cores onto which magnets have been mounted, wherein demagnetization of the magnets can be counteracted while a decline in the performance of the rotating electrical mechanism is suppressed. This rotor is provided with: first rotor cores (240) comprising a plurality of spaces (241) extending through in the axial direction; and a second core (250) in contact with the axial ends of the first rotor cores (240), the second core being provided with a plurality of magnet slots (211) at positions facing the spaces (241). The spaces (241) are formed with a lower magnetic resistance than the magnet slots (211). This configuration makes it possible to reduce the intensity of the reverse magnetic field acting on permanent magnets (220), and to cause a reluctance torque to be generated by the first rotor cores (240). Therefore, demagnetization of the magnets can be counteracted while a decline in performance can be suppressed in a rotating electrical mechanism comprising a rotor having rotor cores onto which magnets have been mounted.

Inventors:

KONDOU TOSHINARI
YASUDA YOSHIKI
YAMAGIWA AKIO

Application Number:

PCT/JP2012/001949

Publication Date:

October 04, 2012

Filing Date:

March 21, 2012

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
KONDOU TOSHINARI
YASUDA YOSHIKI
YAMAGIWA AKIO

International Classes:

H02K1/27; H02K1/22; H02K19/10

Foreign References:

JP2002354730A	2002-12-06
JP2002354729A	2002-12-06
JP2004088852A	2004-03-18
JPH0851751A	1996-02-20

Other References: