JP5257541B2 - 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法 - Google Patents

固定用樹脂組成物、ロータ、自動車、及びロータの製造方法 Download PDF

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Publication number
JP5257541B2
JP5257541B2 JP2012225637A JP2012225637A JP5257541B2 JP 5257541 B2 JP5257541 B2 JP 5257541B2 JP 2012225637 A JP2012225637 A JP 2012225637A JP 2012225637 A JP2012225637 A JP 2012225637A JP 5257541 B2 JP5257541 B2 JP 5257541B2
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Prior art keywords
resin composition
fixing
rotor
fixing resin
epoxy resin
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JP2012225637A
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English (en)
Japanese (ja)
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JP2013136725A (ja
Inventor
哲也 北田
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Sumitomo Bakelite Co Ltd
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Sumitomo Bakelite Co Ltd
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Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP2012225637A priority Critical patent/JP5257541B2/ja
Publication of JP2013136725A publication Critical patent/JP2013136725A/ja
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    • 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]
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/62—Alcohols or phenols
    • C08G59/621—Phenols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/68—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used
    • C08G59/688—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the catalysts used containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C08L63/04—Epoxynovolacs
    • 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
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/02—Casings or enclosures characterised by the material thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Epoxy Resins (AREA)
JP2012225637A 2011-11-29 2012-10-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法 Active JP5257541B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012225637A JP5257541B2 (ja) 2011-11-29 2012-10-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011260440 2011-11-29
JP2011260440 2011-11-29
JP2012225637A JP5257541B2 (ja) 2011-11-29 2012-10-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法

Related Child Applications (1)

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JP2013082626A Division JP6089900B2 (ja) 2011-11-29 2013-04-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法

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JP2013136725A JP2013136725A (ja) 2013-07-11
JP5257541B2 true JP5257541B2 (ja) 2013-08-07

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JP2012225637A Active JP5257541B2 (ja) 2011-11-29 2012-10-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法
JP2013082626A Active JP6089900B2 (ja) 2011-11-29 2013-04-11 固定用樹脂組成物、ロータ、自動車、及びロータの製造方法

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US (1) US9997968B2 (https=)
EP (1) EP2787606B1 (https=)
JP (2) JP5257541B2 (https=)
KR (1) KR101870489B1 (https=)
CN (2) CN103975506A (https=)
BR (1) BR112014012761B1 (https=)
HU (1) HUE054387T2 (https=)
PL (1) PL2787606T3 (https=)
SG (1) SG11201402724TA (https=)
SI (1) SI2787606T1 (https=)
WO (1) WO2013080654A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013181106A (ja) * 2012-03-01 2013-09-12 Sumitomo Bakelite Co Ltd ローター固定用樹脂組成物、ローター、および自動車

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101508080B1 (ko) * 2010-09-02 2015-04-07 스미또모 베이크라이트 가부시키가이샤 로터에 사용하는 고정용 수지 조성물
EP2988395A4 (en) * 2013-04-16 2017-03-22 NHK Spring Co., Ltd. Magnetic plate used for rotor core of motor and method for manufacturing magnetic plate
CN104377858A (zh) * 2014-12-10 2015-02-25 安徽巨一自动化装备有限公司 一种新型电机转子结构
JP6424613B2 (ja) * 2014-12-19 2018-11-21 トヨタ紡織株式会社 回転電機のコアの製造方法
JP6385588B2 (ja) * 2015-10-09 2018-09-05 三菱電機株式会社 回転子および回転電機
EP3444927B1 (en) 2016-04-13 2024-04-10 Kuroda Precision Industries Ltd. Method of manufacturing a laminated iron core comprising embedded magnets
US11201526B2 (en) * 2016-04-13 2021-12-14 Kuroda Precision Industries Ltd. Resin sealing device and resin sealing method for manufacturing magnet embedded core
CN105968722A (zh) * 2016-06-23 2016-09-28 安徽酷米智能科技有限公司 一种耐热抗冲击电路布线板用改性环氧树脂
TWI723211B (zh) * 2016-09-23 2021-04-01 日商住友電木股份有限公司 熱硬化性樹脂組成物、樹脂密封基板及電子裝置
DE102017103619A1 (de) * 2017-02-22 2018-08-23 Ebm-Papst St. Georgen Gmbh & Co. Kg Elektromotor, Innenrotor und Rotorblech
US10608487B2 (en) * 2017-03-07 2020-03-31 Ford Global Technologies, Llc Electric machine rotor
US11128206B2 (en) * 2017-03-29 2021-09-21 Hitachi Automotive Systems, Ltd. Method of manufacturing rotor of rotating electrical machine
WO2018211799A1 (ja) * 2017-05-17 2018-11-22 三菱電機株式会社 液状熱硬化性樹脂組成物、樹脂硬化物の製造方法、固定子コイル及び回転電機
JP6909135B2 (ja) * 2017-11-22 2021-07-28 株式会社三井ハイテック 鉄心製品の製造方法
DE102018129877A1 (de) 2018-01-05 2019-07-11 Schaeffler Technologies AG & Co. KG Verfahren zur Befestigung mindestens eines Magneten an einem Blechpaket eines Rotors für einen Elektromotor, ein Rotor und ein Elektromotor mit dem Rotor
US10879775B2 (en) * 2018-05-23 2020-12-29 Ford Global Technologies, Llc Surface treatments of electrical steel core devices
JP7113694B2 (ja) * 2018-07-31 2022-08-05 株式会社三井ハイテック 鉄心製品の製造方法及び鉄心製品の製造装置
CN109370150A (zh) * 2018-09-04 2019-02-22 安徽上勤电子科技有限公司 一种转子封装用树脂及其制备方法
WO2020075275A1 (ja) * 2018-10-11 2020-04-16 黒田精工株式会社 ロータコア保持治具、磁石埋込み型コアの製造装置及び製造方法
CN110011497B (zh) * 2019-04-08 2024-08-13 苏州均华精密机械有限公司 一种电机转子铁芯磁钢槽灌胶装置
CN112087078B (zh) * 2019-06-14 2021-11-30 中车株洲电力机车研究所有限公司 一种轨道交通永磁电机转子内嵌式永磁体的固定方法
US11223252B2 (en) * 2019-08-05 2022-01-11 GM Global Technology Operations LLC Rotor for an electric machine
EP4216411B1 (en) * 2019-12-26 2026-04-22 Aisin Corporation Method for manufacturing rotor
CN111371265B (zh) * 2020-02-27 2021-08-24 北京动力源新能源科技有限责任公司 一种内嵌式永磁电机转子的制作方法
JP7511372B2 (ja) * 2020-03-31 2024-07-05 日本ユピカ株式会社 回転電機ロータコアの磁石固定用結晶性ラジカル重合性組成物、当該組成物を使用した回転電機ロータコア、及び当該回転電機ロータコアの製造方法
JP7335193B2 (ja) * 2020-03-31 2023-08-29 株式会社アイシン ロータコアおよびロータコアの製造方法
EP4169988B1 (en) * 2020-06-17 2026-04-01 Nippon Steel Corporation Coating composition for electrical steel sheet, electrical steel sheet, laminated core and rotary electric machine
KR102855962B1 (ko) 2020-06-17 2025-09-05 닛폰세이테츠 가부시키가이샤 전자 강판용 코팅 조성물, 접착용 표면 피복 전자 강판 및 적층 철심
JP7363700B2 (ja) * 2020-07-27 2023-10-18 トヨタ自動車株式会社 磁石の製造方法、及びロータの製造方法
JP7519235B2 (ja) * 2020-08-27 2024-07-19 株式会社アイシン ロータコアの製造方法
CN116348516B (zh) * 2020-10-05 2024-07-23 住友电木株式会社 树脂成形材料、成形体和该成形体的制造方法
EP4138273A1 (de) * 2021-08-17 2023-02-22 Siemens Aktiengesellschaft Rotor mit unterschiedlichen blechen
EP4138272A1 (de) 2021-08-17 2023-02-22 Siemens Aktiengesellschaft Rotor mit unterschiedlichen sektoren
EP4138271A1 (de) * 2021-08-17 2023-02-22 Siemens Aktiengesellschaft Blechpaket eines rotors mit unterschiedlichen segmenten
US12088146B2 (en) * 2021-08-24 2024-09-10 GM Global Technology Operations LLC Rotor for an electric machine, electric machine for a vehicle, and vehicle
CN121752631A (zh) * 2023-08-29 2026-03-27 株式会社大赛璐 固化性环氧组合物

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611785B2 (ja) * 1990-02-23 1994-02-16 ソマール株式会社 エポキシ樹脂粉体組成物
JP3487143B2 (ja) 1997-09-18 2004-01-13 トヨタ自動車株式会社 回転電機のロータ及び回転電機のロータの製造方法
JP2000109649A (ja) 1998-10-08 2000-04-18 Nitto Denko Corp 半導体封止用エポキシ樹脂組成物およびその製法ならびに半導体装置
JP2000316243A (ja) 1999-04-28 2000-11-14 Toyota Motor Corp 回転子の磁石固定方法及び回転子
JP4145438B2 (ja) * 1999-09-29 2008-09-03 住友ベークライト株式会社 エポキシ樹脂組成物及び半導体装置
JP2002359942A (ja) 2001-05-31 2002-12-13 Meidensha Corp 永久磁石型回転電機のロータ構造
JP2003199303A (ja) 2001-12-27 2003-07-11 Matsushita Electric Ind Co Ltd モータの製造方法
JP4453427B2 (ja) 2004-04-15 2010-04-21 トヨタ自動車株式会社 永久磁石モータのロータ及びその製造方法
JP2005314562A (ja) 2004-04-28 2005-11-10 Kaneka Corp 熱硬化性樹脂組成物およびその利用
JP4951954B2 (ja) 2005-12-13 2012-06-13 住友ベークライト株式会社 半導体封止用エポキシ樹脂組成物及び半導体装置
CN101107285B (zh) 2005-01-20 2011-01-12 住友电木株式会社 环氧树脂组合物及该组合物潜伏化的方法和半导体装置
JP4143631B2 (ja) * 2005-09-01 2008-09-03 トヨタ自動車株式会社 ロータの製造方法
JP2007231252A (ja) * 2006-01-31 2007-09-13 Shin Etsu Chem Co Ltd 半導体封止用エポキシ樹脂組成物及び該組成物で封止された半導体装置
JP4850528B2 (ja) 2006-02-08 2012-01-11 トヨタ自動車株式会社 ロータの製造方法
JP4842670B2 (ja) * 2006-02-27 2011-12-21 トヨタ自動車株式会社 ロータおよび電動車両
WO2007105357A1 (ja) * 2006-03-07 2007-09-20 Sumitomo Bakelite Co., Ltd. 半導体封止用エポキシ樹脂組成物、及び半導体装置
JP2009013213A (ja) 2007-07-02 2009-01-22 Gun Ei Chem Ind Co Ltd モーター封止用エポキシ樹脂成形材料及び成形品
KR20120040183A (ko) * 2009-06-22 2012-04-26 스미또모 베이크라이트 가부시키가이샤 반도체 밀봉용 수지 조성물, 및 반도체 장치
CN102668343B (zh) * 2009-12-22 2015-05-27 丰田自动车株式会社 转子和转子的制造方法
CN102791796A (zh) 2010-03-15 2012-11-21 住友电木株式会社 半导体密封用树脂组合物及使用其的半导体装置
KR101508080B1 (ko) * 2010-09-02 2015-04-07 스미또모 베이크라이트 가부시키가이샤 로터에 사용하는 고정용 수지 조성물

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013181106A (ja) * 2012-03-01 2013-09-12 Sumitomo Bakelite Co Ltd ローター固定用樹脂組成物、ローター、および自動車

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Publication number Publication date
SI2787606T1 (sl) 2021-07-30
EP2787606A1 (en) 2014-10-08
CN110752687A (zh) 2020-02-04
SG11201402724TA (en) 2014-09-26
US9997968B2 (en) 2018-06-12
JP6089900B2 (ja) 2017-03-08
CN103975506A (zh) 2014-08-06
US20140327329A1 (en) 2014-11-06
PL2787606T3 (pl) 2021-07-19
JP2013136794A (ja) 2013-07-11
KR101870489B1 (ko) 2018-07-19
EP2787606A4 (en) 2015-07-08
EP2787606B1 (en) 2021-02-17
BR112014012761A2 (pt) 2017-06-13
BR112014012761B1 (pt) 2021-01-12
BR112014012761A8 (pt) 2017-06-20
HUE054387T2 (hu) 2021-09-28
JP2013136725A (ja) 2013-07-11
WO2013080654A1 (ja) 2013-06-06
KR20140103920A (ko) 2014-08-27

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