WO2009014172A1 - Wide range constant output permanent magnet motor - Google Patents

Wide range constant output permanent magnet motor Download PDF

Info

Publication number
WO2009014172A1
WO2009014172A1 PCT/JP2008/063271 JP2008063271W WO2009014172A1 WO 2009014172 A1 WO2009014172 A1 WO 2009014172A1 JP 2008063271 W JP2008063271 W JP 2008063271W WO 2009014172 A1 WO2009014172 A1 WO 2009014172A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
wide range
magnet motor
constant output
range constant
Prior art date
Application number
PCT/JP2008/063271
Other languages
French (fr)
Japanese (ja)
Inventor
Daiki Matsuhashi
Hiroyuki Nakaura
Kenji Kawakubo
Original Assignee
Meidensha Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2008179021A external-priority patent/JP2009050148A/en
Application filed by Meidensha Corporation filed Critical Meidensha Corporation
Publication of WO2009014172A1 publication Critical patent/WO2009014172A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

Since a permanent magnet (10) with an arc-shaped outer circumferential surface is buried into an iron core (20), a gap magnetic distribution is not disturbed, there are no apprehensions of increase in torque ripples and voltage ripples, and it is advantageous to the miniaturization of a rotor. In addition, since a hole (40) is made on the inner side of the iron core radial direction of the permanent magnets (10, 11), a d-axis inductance (Ld) can be set to be small and a salient pole ratio (Ld-Lq) can be set to be large in comparison with those in the case of the absence of the hole (40), i.e., a reluctance torque (Tr) can be set to be large.
PCT/JP2008/063271 2007-07-26 2008-07-24 Wide range constant output permanent magnet motor WO2009014172A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007194014 2007-07-26
JP2007-194014 2007-07-26
JP2008-179021 2008-07-09
JP2008179021A JP2009050148A (en) 2007-07-26 2008-07-09 Permanent-magnet electric motor with constant output in wide range

Publications (1)

Publication Number Publication Date
WO2009014172A1 true WO2009014172A1 (en) 2009-01-29

Family

ID=40281420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/063271 WO2009014172A1 (en) 2007-07-26 2008-07-24 Wide range constant output permanent magnet motor

Country Status (1)

Country Link
WO (1) WO2009014172A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010434A1 (en) * 2010-02-26 2011-09-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Rotor for electric machine i.e. permanent magnet-excited electric machine, has pair of V-shaped recesses provided in such manner that curved outer contours of loaf magnets runs parallel to external periphery of rotor body
DE102010027837A1 (en) 2010-04-16 2011-10-20 Robert Bosch Gmbh synchronous motor
EP2773022A4 (en) * 2011-10-26 2016-01-20 Mitsubishi Electric Corp Rotor and interior permanent magnet motor
EP2741401A4 (en) * 2011-08-05 2016-04-20 Gree Electric Appliances Inc Motor rotor and motor having same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05304737A (en) * 1992-02-26 1993-11-16 Toshiba Corp Permanent magnet type motor
JPH11285184A (en) * 1998-03-27 1999-10-15 Fujitsu General Ltd Permanent-magnet motor
JP2002345188A (en) * 2001-05-14 2002-11-29 Nissan Motor Co Ltd Dynamo-electric rotating machine
JP2003061283A (en) * 2001-08-17 2003-02-28 Mitsubishi Electric Corp Rotor and stator of dynamo-electric machine, and motor, compressor, and freezing cycle, and method of manufacturing rotor of dynamo-electric machine
JP2005006484A (en) * 2003-05-21 2005-01-06 Mitsubishi Heavy Ind Ltd Ipm rotary electric machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05304737A (en) * 1992-02-26 1993-11-16 Toshiba Corp Permanent magnet type motor
JPH11285184A (en) * 1998-03-27 1999-10-15 Fujitsu General Ltd Permanent-magnet motor
JP2002345188A (en) * 2001-05-14 2002-11-29 Nissan Motor Co Ltd Dynamo-electric rotating machine
JP2003061283A (en) * 2001-08-17 2003-02-28 Mitsubishi Electric Corp Rotor and stator of dynamo-electric machine, and motor, compressor, and freezing cycle, and method of manufacturing rotor of dynamo-electric machine
JP2005006484A (en) * 2003-05-21 2005-01-06 Mitsubishi Heavy Ind Ltd Ipm rotary electric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010434A1 (en) * 2010-02-26 2011-09-01 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Rotor for electric machine i.e. permanent magnet-excited electric machine, has pair of V-shaped recesses provided in such manner that curved outer contours of loaf magnets runs parallel to external periphery of rotor body
DE102010027837A1 (en) 2010-04-16 2011-10-20 Robert Bosch Gmbh synchronous motor
EP2741401A4 (en) * 2011-08-05 2016-04-20 Gree Electric Appliances Inc Motor rotor and motor having same
EP2773022A4 (en) * 2011-10-26 2016-01-20 Mitsubishi Electric Corp Rotor and interior permanent magnet motor
US9276445B2 (en) 2011-10-26 2016-03-01 Mitsubishi Electric Corporation Rotor and interior permanent magnet motor

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