WO2008117501A1 - 回転子及び永久磁石回転電機 - Google Patents

回転子及び永久磁石回転電機 Download PDF

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Publication number
WO2008117501A1
WO2008117501A1 PCT/JP2007/074792 JP2007074792W WO2008117501A1 WO 2008117501 A1 WO2008117501 A1 WO 2008117501A1 JP 2007074792 W JP2007074792 W JP 2007074792W WO 2008117501 A1 WO2008117501 A1 WO 2008117501A1
Authority
WO
WIPO (PCT)
Prior art keywords
permanent magnet
rotor
electric machine
rotating electric
magnet rotating
Prior art date
Application number
PCT/JP2007/074792
Other languages
English (en)
French (fr)
Inventor
Mikio Takabatake
Norio Takahashi
Motoyasu Mochizuki
Tadashi Tokumasu
Original Assignee
Kabushiki Kaisha Toshiba
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 Kabushiki Kaisha Toshiba filed Critical Kabushiki Kaisha Toshiba
Priority to EP07860021A priority Critical patent/EP2154766A1/en
Priority to US12/532,766 priority patent/US20100033051A1/en
Publication of WO2008117501A1 publication Critical patent/WO2008117501A1/ja

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
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • 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
    • 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
    • H02K1/278—Surface mounted magnets; Inset magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

　本発明の永久磁石回転電機１は、固定子巻線２１を有する固定子２０と、固定子と所定の空隙２３を持つ状態で回転可能に配置された回転子１０とから構成され、回転子は回転子鉄心１２を有し、回転子鉄心の外周側内部又は表面に永久磁石１３が配置されていて、この永久磁石は軸方向に複数のセグメント１３－１，１３－２に分割されており、分割面１３Ａと永久磁石１３の周方向端面とは鋭角を成すように構成され、その鋭角の尖端部を狭領域部１４－１，１４－２としたことを特徴とし、永久磁石内部での渦電流の発生を抑制して永久磁石の特性劣化が防止できて高効率な永久磁石回転電機である。
PCT/JP2007/074792 2007-03-23 2007-12-25 回転子及び永久磁石回転電機 WO2008117501A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07860021A EP2154766A1 (en) 2007-03-23 2007-12-25 Rotor and permanent magnet rotating electric machine
US12/532,766 US20100033051A1 (en) 2007-03-23 2007-12-25 Rotor and permanent-magnet rotating electrical machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007077842A JP2008245336A (ja) 2007-03-23 2007-03-23 回転子及び永久磁石回転電機
JP2007-077842 2007-03-23

Publications (1)

Publication Number Publication Date
WO2008117501A1 true WO2008117501A1 (ja) 2008-10-02

Family

ID=39788243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074792 WO2008117501A1 (ja) 2007-03-23 2007-12-25 回転子及び永久磁石回転電機

Country Status (5)

Country Link
US (1) US20100033051A1 (ja)
EP (1) EP2154766A1 (ja)
JP (1) JP2008245336A (ja)
CN (1) CN101641853A (ja)
WO (1) WO2008117501A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8421285B2 (en) 2009-02-27 2013-04-16 Hitachi, Ltd Permanent magnet type electric power generator
WO2022009332A1 (ja) * 2020-07-08 2022-01-13 三菱電機株式会社 回転電機の回転子、回転電機、及び圧縮機

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4962870B2 (ja) * 2007-06-29 2012-06-27 日産自動車株式会社 界磁極用磁石体の製造方法、永久磁石型回転電動機の製造方法及び界磁極用磁石体
JP5444756B2 (ja) * 2009-02-25 2014-03-19 トヨタ自動車株式会社 Ｉｐｍモータ用ロータとｉｐｍモータ
JP5244721B2 (ja) * 2009-07-07 2013-07-24 トヨタ自動車株式会社 回転電機のロータ
JP5929272B2 (ja) * 2012-02-07 2016-06-01 株式会社デンソー 車両用回転電機の回転子およびその製造方法
JP2013176259A (ja) * 2012-02-27 2013-09-05 Nissan Motor Co Ltd 永久磁石型回転電機
JP6356391B2 (ja) 2013-05-31 2018-07-11 東芝インフラシステムズ株式会社 永久磁石式回転電機
KR101587423B1 (ko) * 2013-08-23 2016-02-03 한국전기연구원 토크 맥동 저감을 위한 비대칭 자극 형상을 가지는 전기기기
CN205004848U (zh) * 2015-08-07 2016-01-27 罗伯特·博世有限公司 电机用转子及采用该电机用转子的电机
WO2018011850A1 (ja) * 2016-07-11 2018-01-18 三菱電機株式会社 ロータ、電動機、送風機、圧縮機および空気調和装置
WO2018101160A1 (ja) * 2016-11-30 2018-06-07 アイシン・エィ・ダブリュ株式会社 磁石ユニット
JP7073711B2 (ja) * 2017-12-25 2022-05-24 Tdk株式会社 永久磁石片、永久磁石組立体および永久磁石応用装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421331A (ja) * 1990-05-15 1992-01-24 Shibaura Eng Works Co Ltd 電動機
JPH0479741A (ja) * 1990-07-23 1992-03-13 Seiko Epson Corp 永久磁石回転子
JP2000312448A (ja) * 1999-04-26 2000-11-07 Seiko Instruments Inc 電動機
JP2002359955A (ja) 2001-05-30 2002-12-13 Toshiba Corp 永久磁石式回転電機の回転子の製造方法
JP2004096868A (ja) 2002-08-30 2004-03-25 Toyota Motor Corp Ｉｐｍモータの磁石分割方法及びｉｐｍモータ
JP2004096961A (ja) * 2002-09-04 2004-03-25 Mitsubishi Electric Corp リング型磁石および回転子
DE10334463A1 (de) * 2003-07-29 2005-03-10 Valeo Motoren & Aktuatoren Dynamoelektrische Maschine
JP2005094845A (ja) 2003-09-12 2005-04-07 Toshiba Industrial Products Manufacturing Corp 永久磁石式回転電機の回転子
JP2006254599A (ja) * 2005-03-10 2006-09-21 Asmo Co Ltd 埋込磁石型モータ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1014542B1 (en) * 1998-12-25 2005-11-16 Matsushita Electric Industrial Co., Ltd. Motor having a rotor with interior split-permanent-magnet

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421331A (ja) * 1990-05-15 1992-01-24 Shibaura Eng Works Co Ltd 電動機
JPH0479741A (ja) * 1990-07-23 1992-03-13 Seiko Epson Corp 永久磁石回転子
JP2000312448A (ja) * 1999-04-26 2000-11-07 Seiko Instruments Inc 電動機
JP2002359955A (ja) 2001-05-30 2002-12-13 Toshiba Corp 永久磁石式回転電機の回転子の製造方法
JP2004096868A (ja) 2002-08-30 2004-03-25 Toyota Motor Corp Ｉｐｍモータの磁石分割方法及びｉｐｍモータ
JP2004096961A (ja) * 2002-09-04 2004-03-25 Mitsubishi Electric Corp リング型磁石および回転子
DE10334463A1 (de) * 2003-07-29 2005-03-10 Valeo Motoren & Aktuatoren Dynamoelektrische Maschine
JP2005094845A (ja) 2003-09-12 2005-04-07 Toshiba Industrial Products Manufacturing Corp 永久磁石式回転電機の回転子
JP2006254599A (ja) * 2005-03-10 2006-09-21 Asmo Co Ltd 埋込磁石型モータ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8421285B2 (en) 2009-02-27 2013-04-16 Hitachi, Ltd Permanent magnet type electric power generator
WO2022009332A1 (ja) * 2020-07-08 2022-01-13 三菱電機株式会社 回転電機の回転子、回転電機、及び圧縮機

Also Published As

Publication number Publication date
US20100033051A1 (en) 2010-02-11
JP2008245336A (ja) 2008-10-09
EP2154766A1 (en) 2010-02-17
CN101641853A (zh) 2010-02-03

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