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WO2008078584A1 - Buried magnet motor - Google Patents

Buried magnet motor Download PDF

Info

Publication number
WO2008078584A1
WO2008078584A1 PCT/JP2007/074197 JP2007074197W WO2008078584A1 WO 2008078584 A1 WO2008078584 A1 WO 2008078584A1 JP 2007074197 W JP2007074197 W JP 2007074197W WO 2008078584 A1 WO2008078584 A1 WO 2008078584A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnets
rotator
rotor
iron core
magnet motor
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/074197
Other languages
French (fr)
Japanese (ja)
Inventor
Tuyoshi Nonaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Corp
Yaskawa Electric Manufacturing Co Ltd
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
Application filed by Yaskawa Electric Corp, Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Corp
Priority to JP2008551034A priority Critical patent/JP5057171B2/en
Publication of WO2008078584A1 publication Critical patent/WO2008078584A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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]
    • 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)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

A buried magnet motor in which the torque is improved to the extent corresponding to the amount of magnets used therein by cutting the leakage flux to the inner connection part of the iron core of the rotor of a motor with high appropriateness and guiding the magnetic flux of more magnets to the outer peripheral surface of the rotor, and which is widely adaptable to variations of the number of poles, the outer diameter of the rotor, and the shaft diameter and comprises a rotator iron core having gap of a consistent simple shape. The buried magnet motor comprises a stator (101), a rotator (102) opposed to the stator (101) with a gap in the radial direction formed therebetween, and magnets (112) the number of which is equal to the number of poles radially arranged on both sides of the magnetic pole part (111a) at the center of each pole of the rotator (102). Gaps (114) each having a shape of a polygon, e.g., generally a pentagon on the inner peripheral side of the rotator iron core (111) between the magnets (112) are provided.
PCT/JP2007/074197 2006-12-27 2007-12-17 Buried magnet motor Ceased WO2008078584A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008551034A JP5057171B2 (en) 2006-12-27 2007-12-17 Embedded magnet type motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-351215 2006-12-27
JP2006351215 2006-12-27

Publications (1)

Publication Number Publication Date
WO2008078584A1 true WO2008078584A1 (en) 2008-07-03

Family

ID=39562377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074197 Ceased WO2008078584A1 (en) 2006-12-27 2007-12-17 Buried magnet motor

Country Status (2)

Country Link
JP (1) JP5057171B2 (en)
WO (1) WO2008078584A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011217602A (en) * 2010-03-31 2011-10-27 Valeo Equipments Electriques Moteur Flux concentration type synchronous rotating electric machine with permanent magnet
EP2722969A1 (en) 2012-10-22 2014-04-23 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
JP2014082885A (en) * 2012-10-17 2014-05-08 Fanuc Ltd Electric motor with stator core reducing cogging torque
CN103812287A (en) * 2012-10-04 2014-05-21 三星电子株式会社 Brushless motor
JP2014180193A (en) * 2013-02-15 2014-09-25 Fanuc Ltd Synchronous motor with high responsiveness
CN108039785A (en) * 2017-12-11 2018-05-15 珠海格力节能环保制冷技术研究中心有限公司 Rotor and motor
CN108494130A (en) * 2018-05-28 2018-09-04 珠海格力节能环保制冷技术研究中心有限公司 Rotor structure and motor with it
US10312755B2 (en) 2015-02-27 2019-06-04 Nidec Corporation Motor
CN109904956A (en) * 2019-02-21 2019-06-18 珠海格力电器股份有限公司 Rotor punching sheet, rotor core, motor and air conditioner
JP2020054128A (en) * 2018-09-27 2020-04-02 日本電産株式会社 Rotor and motor
US10763714B2 (en) 2015-02-27 2020-09-01 Nidec Corporation Motor
CN114157067A (en) * 2021-11-30 2022-03-08 台州阳春机电有限公司 Motor rotor punching sheet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08107640A (en) * 1994-10-03 1996-04-23 Fanuc Ltd Synchronous motor rotor
JPH11103546A (en) * 1997-09-29 1999-04-13 Fujitsu General Ltd Permanent magnet motor
JP2001211582A (en) * 2000-01-26 2001-08-03 Fujitsu General Ltd Permanent magnet motor
JP2005184957A (en) * 2003-12-18 2005-07-07 Toshiba Corp Permanent magnet type reluctance type rotating electrical machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08107640A (en) * 1994-10-03 1996-04-23 Fanuc Ltd Synchronous motor rotor
JPH11103546A (en) * 1997-09-29 1999-04-13 Fujitsu General Ltd Permanent magnet motor
JP2001211582A (en) * 2000-01-26 2001-08-03 Fujitsu General Ltd Permanent magnet motor
JP2005184957A (en) * 2003-12-18 2005-07-07 Toshiba Corp Permanent magnet type reluctance type rotating electrical machine

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011217602A (en) * 2010-03-31 2011-10-27 Valeo Equipments Electriques Moteur Flux concentration type synchronous rotating electric machine with permanent magnet
CN103812287A (en) * 2012-10-04 2014-05-21 三星电子株式会社 Brushless motor
CN103812287B (en) * 2012-10-04 2017-10-13 三星电子株式会社 Brushless electric machine
US9293974B2 (en) 2012-10-17 2016-03-22 Fanuc Corporation Electric motor having stator core for reducing cogging torque
JP2014082885A (en) * 2012-10-17 2014-05-08 Fanuc Ltd Electric motor with stator core reducing cogging torque
US9219390B2 (en) 2012-10-22 2015-12-22 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
KR101477904B1 (en) * 2012-10-22 2014-12-31 가부시키가이샤 야스카와덴키 Rotating electrical machine
JP2014087117A (en) * 2012-10-22 2014-05-12 Yaskawa Electric Corp Rotary electric machine
CN103779986A (en) * 2012-10-22 2014-05-07 株式会社安川电机 Rotating electrical machine
EP2722969A1 (en) 2012-10-22 2014-04-23 Kabushiki Kaisha Yaskawa Denki Rotating electrical machine
JP2014180193A (en) * 2013-02-15 2014-09-25 Fanuc Ltd Synchronous motor with high responsiveness
US10763714B2 (en) 2015-02-27 2020-09-01 Nidec Corporation Motor
US10312755B2 (en) 2015-02-27 2019-06-04 Nidec Corporation Motor
CN108039785A (en) * 2017-12-11 2018-05-15 珠海格力节能环保制冷技术研究中心有限公司 Rotor and motor
CN108494130A (en) * 2018-05-28 2018-09-04 珠海格力节能环保制冷技术研究中心有限公司 Rotor structure and motor with it
JP2020054128A (en) * 2018-09-27 2020-04-02 日本電産株式会社 Rotor and motor
CN109904956A (en) * 2019-02-21 2019-06-18 珠海格力电器股份有限公司 Rotor punching sheet, rotor core, motor and air conditioner
CN109904956B (en) * 2019-02-21 2025-05-09 珠海格力电器股份有限公司 A rotor punching sheet, a rotor iron core, a motor and an air conditioner
CN114157067A (en) * 2021-11-30 2022-03-08 台州阳春机电有限公司 Motor rotor punching sheet

Also Published As

Publication number Publication date
JP5057171B2 (en) 2012-10-24
JPWO2008078584A1 (en) 2010-04-22

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