JPS63194543A - 車両用交流発電機の固定子及びその製造方法 - Google Patents

車両用交流発電機の固定子及びその製造方法

Info

Publication number
JPS63194543A
JPS63194543A JP62026285A JP2628587A JPS63194543A JP S63194543 A JPS63194543 A JP S63194543A JP 62026285 A JP62026285 A JP 62026285A JP 2628587 A JP2628587 A JP 2628587A JP S63194543 A JPS63194543 A JP S63194543A
Authority
JP
Japan
Prior art keywords
stator
winding
slot
core
sectional shape
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.)
Pending
Application number
JP62026285A
Other languages
English (en)
Japanese (ja)
Inventor
Yasutaka Kurihashi
栗橋　保隆
Kenji Yaginuma
柳沼　健治
Tadayuki Suenobe
末延　忠幸
Hiroshi Tamura
博 田村
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62026285A priority Critical patent/JPS63194543A/ja
Priority to KR1019880000657A priority patent/KR880010538A/ko
Priority to GB08802404A priority patent/GB2202170A/en
Priority to FR8801244A priority patent/FR2610770A1/fr
Priority to DE3803752A priority patent/DE3803752A1/de
Publication of JPS63194543A publication Critical patent/JPS63194543A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/0025—Shaping or compacting conductors or winding heads after the installation of the winding in the core or machine ; Applying fastening means on winding heads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/066—Windings consisting of complete sections, e.g. coils, waves inserted perpendicularly to the axis of the slots or inter-polar channels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K53/00—Alleged dynamo-electric perpetua mobilia

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Windings For Motors And Generators (AREA)
JP62026285A 1987-02-09 1987-02-09 車両用交流発電機の固定子及びその製造方法 Pending JPS63194543A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62026285A JPS63194543A (ja) 1987-02-09 1987-02-09 車両用交流発電機の固定子及びその製造方法
KR1019880000657A KR880010538A (ko) 1987-02-09 1988-01-27 차량용 교류발전기의 고정자 및 그 제조방법
GB08802404A GB2202170A (en) 1987-02-09 1988-02-03 Alternator stator with inserted windings
FR8801244A FR2610770A1 (fr) 1987-02-09 1988-02-03 Stator destine a etre utilise dans un alternateur pour un vehicule et procede pour fabriquer ce stator
DE3803752A DE3803752A1 (de) 1987-02-09 1988-02-08 Staender fuer einen kraftfahrzeug-drehstromgenerator und herstellungsverfahren dafuer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62026285A JPS63194543A (ja) 1987-02-09 1987-02-09 車両用交流発電機の固定子及びその製造方法

Publications (1)

Publication Number Publication Date
JPS63194543A true JPS63194543A (ja) 1988-08-11

Family

ID=12189021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62026285A Pending JPS63194543A (ja) 1987-02-09 1987-02-09 車両用交流発電機の固定子及びその製造方法

Country Status (5)

Country Link
JP (1) JPS63194543A (fr)
KR (1) KR880010538A (fr)
DE (1) DE3803752A1 (fr)
FR (1) FR2610770A1 (fr)
GB (1) GB2202170A (fr)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5787567A (en) * 1995-02-17 1998-08-04 Toyota Jidosha Kabushiki Kaisha Coil-forming wire material and method of manufacturing such material
US5926940A (en) * 1996-08-14 1999-07-27 Toyota Jidosha Kabushiki Kaisha Manufacturing method for stator of motor
US6137201A (en) * 1997-05-26 2000-10-24 Denso Corporation AC generator for vehicles
JP2001103721A (ja) * 1999-09-30 2001-04-13 Hitachi Ltd 車両用交流発電機
EP1109299A2 (fr) * 1999-12-14 2001-06-20 Mitsubishi Denki Kabushiki Kaisha Procédé de fabrication d'un alternateur
EP1109293A2 (fr) * 1999-12-14 2001-06-20 Mitsubishi Denki Kabushiki Kaisha Alternateur et sa méthode de fabrication
US6291918B1 (en) 1997-05-26 2001-09-18 Denso Corporation Alternator for vehicle
EP1179881A1 (fr) * 1997-05-26 2002-02-13 Denso Corporation Générateur à courant alternatif pour véhicules
JP2002191148A (ja) * 2000-12-20 2002-07-05 Nissan Motor Co Ltd 回転電機
US6441527B1 (en) * 2000-02-10 2002-08-27 Mitsubishi Denki Kabushiki Kaisha A.C. generator for vehicle
JP2003520559A (ja) * 2000-01-20 2003-07-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 電気機械のためのコア巻線を有する磁気的に励起可能なコアを製作する方法、この方法で制作されたコア巻線を有する磁気的に励起可能なコア並びにこの方法で制作されたコア巻線を有するコアを備えた電気機械
KR100396805B1 (ko) * 1999-12-27 2003-09-02 미쓰비시덴키 가부시키가이샤 교류발전기의 제조방법
US6657352B1 (en) 1999-12-27 2003-12-02 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
US6664695B2 (en) * 1998-11-20 2003-12-16 Mitsubishi Denki Kabushiki Kaisha Stator of AC generator for use in a vehicle with radially aligned, rectilinear polymorphic cross-section conductor wires
US6687974B1 (en) 1999-12-27 2004-02-10 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing an alternator
US6710496B2 (en) 2000-10-16 2004-03-23 Mitsubishi Denki Kabushiki Kaisha Stator for an alternator and method of manufacturing the same
WO2004062065A1 (fr) * 2002-12-26 2004-07-22 Mitsubishi Denki Kabushiki Kaisha Stator de machine dynamoelectrique et procede de fabrication d'un enroulement de stator
KR100444939B1 (ko) * 2001-09-17 2004-08-18 미쓰비시덴키 가부시키가이샤 교류발전기의 고정자 및 그의 제조방법
EP1463184A2 (fr) * 2003-03-25 2004-09-29 Delphi Technologies, Inc. Méthode de processus d'insertion des conducteurs à épingle dans une culasse aux extrémités de dent déformables
JP2007267463A (ja) * 2006-03-28 2007-10-11 Hitachi Ltd 回転電機及び回転電機の製造方法
JP2008125298A (ja) * 2006-11-14 2008-05-29 Mosutetsuku:Kk 線材、及び線材の製造治具
US20100194231A1 (en) * 2008-09-23 2010-08-05 Aerovironment, Inc. Compressed motor winding
WO2017085953A1 (fr) * 2015-11-17 2017-05-26 三菱電機株式会社 Dispositif de formation de bobine et procédé de formation de bobine
US10784737B2 (en) 2015-12-25 2020-09-22 Aisin Seiki Kabushiki Kaisha Rotating electrical machine and method for manufacturing same
JP2021182794A (ja) * 2020-05-18 2021-11-25 トヨタ紡織株式会社 電機子の製造方法
CN116032082A (zh) * 2023-03-28 2023-04-28 邦迪智能装备(河南)有限公司 一种用于扁线电机定子生产的线圈成型设备

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992001327A1 (fr) * 1990-07-07 1992-01-23 Zahnradfabrik Friedrichshafen Ag Procede de production de l'enroulement d'un stator avec des conducteurs profiles pour machines electriques
JP2827773B2 (ja) * 1992-12-21 1998-11-25 株式会社日立製作所 回転電機子と電機子巻線の成形方法
FR2721769B1 (fr) * 1994-06-22 1996-07-26 Valeo Equip Electr Moteur Procédé de sertissage de conducteur dans des encoches ouvertes d'un induit de machine électrique tournante et machine électrique, notamment un démarreur de véhicule automobile, comportant un induit selon le procédé.
FI112412B (fi) 1997-04-18 2003-11-28 Kone Corp Menetelmä sähkökoneen käämityksen valmistamiseksi
DE19736645C2 (de) * 1997-08-22 1999-12-02 Gruendl & Hoffmann Wanderfeldmaschine
JP4029519B2 (ja) 1999-04-12 2008-01-09 株式会社デンソー 車両用交流発電機の固定子
JP2001037188A (ja) 1999-07-15 2001-02-09 Denso Corp 車両用交流発電機
US6278213B1 (en) * 2000-01-13 2001-08-21 Delphi Technologies, Inc. High fill stator design
JP4014071B2 (ja) * 2000-03-13 2007-11-28 三菱電機株式会社 交流発電機及びその巻線アッセンブリ並びに巻線アッセンブリの製造方法
GB2369313A (en) * 2000-11-28 2002-05-29 Rotary Electrical Co Ltd Auto locking coil press head
US7814641B2 (en) 2001-01-09 2010-10-19 Black & Decker Inc. Method of forming a power tool
US7096566B2 (en) 2001-01-09 2006-08-29 Black & Decker Inc. Method for making an encapsulated coil structure
US20020089240A1 (en) 2001-01-09 2002-07-11 Du Hung T. Electric motor having armature coated with a thermally conductive plastic
JP3676707B2 (ja) 2001-07-18 2005-07-27 三菱電機株式会社 車両用交流発電機の固定子およびその製造方法
DE10143217C1 (de) * 2001-09-04 2003-02-27 Compact Dynamics Gmbh Wanderfeldmaschine
JP3736754B2 (ja) 2002-03-01 2006-01-18 株式会社デンソー 車両用交流発電機の固定子
FR2846806B1 (fr) * 2002-09-16 2005-09-09 Valeo Equip Electr Moteur Procede de fabrication de conducteurs electriques en forme d'epingles en u, dispositif pour la mise en oeuvre de ce procede et conducteurs ainsi obtenus
EP1416610B1 (fr) * 2002-10-08 2005-12-28 Mitsubishi Denki Kabushiki Kaisha Stator pour un alternateur automobile
DE10312441B4 (de) * 2003-03-20 2009-02-26 Compact Dynamics Gmbh Wanderfeldmaschine
DE102005048094A1 (de) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Verfahren und Vorrichtung zur Herstellung einer Wicklung für elektrische Maschinen
EP2380262A2 (fr) 2008-12-19 2011-10-26 Robert Bosch GmbH Procédé pour produire un bobinage imbriqué réparti pour des systèmes polyphasés
DE102009056676A1 (de) 2009-12-02 2011-06-09 Volkswagen Ag Wicklung für eine elektrische Maschine sowie ein Verfahren zur Herstellung einer solchen Wicklung
RU2532541C2 (ru) * 2012-07-17 2014-11-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Томский государственный университет систем управления и радиоэлектроники Способ изолировки пазов магнитных сердечников статоров электродвигателей
DE102017213151A1 (de) * 2017-07-31 2019-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Elektrotechnische Spule sowie Verfahren und Halbzeug zur Herstellung derselben
DE102017213106B4 (de) * 2017-07-31 2024-05-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Herstellung einer elektrotechnischen Spule
DE102017119033B4 (de) * 2017-08-21 2020-03-19 Dynamic E Flow Gmbh Wicklungsstück und elektrische Maschine mit einem solchen Wicklungsstück

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1306625A (en) * 1919-06-10 Dynamo-electric machine
DE312728C (fr) *
DE158985C (fr) *
US1462580A (en) * 1920-12-27 1923-07-24 Siemens Schuckertwerke Gmbh Method of manufacturing electric conductors
DE838782C (de) * 1950-07-28 1952-05-12 Siemens Ag Verfahren zur Herstellung der Wicklung elektrischer Maschinen
GB1079815A (en) * 1964-02-03 1967-08-16 Gen Electric Improvements in electrical coils and methods for producing same
JPS59103549A (ja) * 1982-12-01 1984-06-15 Hitachi Ltd コイルの挿入装置
JPS59122331A (ja) * 1982-12-27 1984-07-14 Hitachi Ltd 回転電機の電機子及びその製造方法
JPH0732551B2 (ja) * 1985-04-15 1995-04-10 株式会社日立製作所 回転電機子コイルの成形方法

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5787567A (en) * 1995-02-17 1998-08-04 Toyota Jidosha Kabushiki Kaisha Coil-forming wire material and method of manufacturing such material
US5926940A (en) * 1996-08-14 1999-07-27 Toyota Jidosha Kabushiki Kaisha Manufacturing method for stator of motor
US6137201A (en) * 1997-05-26 2000-10-24 Denso Corporation AC generator for vehicles
US6291918B1 (en) 1997-05-26 2001-09-18 Denso Corporation Alternator for vehicle
EP1179881A1 (fr) * 1997-05-26 2002-02-13 Denso Corporation Générateur à courant alternatif pour véhicules
US6459186B1 (en) 1997-05-26 2002-10-01 Denso Corporation AC generator for vehicles
US6664695B2 (en) * 1998-11-20 2003-12-16 Mitsubishi Denki Kabushiki Kaisha Stator of AC generator for use in a vehicle with radially aligned, rectilinear polymorphic cross-section conductor wires
JP2001103721A (ja) * 1999-09-30 2001-04-13 Hitachi Ltd 車両用交流発電機
EP1109293A3 (fr) * 1999-12-14 2002-10-02 Mitsubishi Denki Kabushiki Kaisha Alternateur et sa méthode de fabrication
EP1109299A2 (fr) * 1999-12-14 2001-06-20 Mitsubishi Denki Kabushiki Kaisha Procédé de fabrication d'un alternateur
EP1109293A2 (fr) * 1999-12-14 2001-06-20 Mitsubishi Denki Kabushiki Kaisha Alternateur et sa méthode de fabrication
EP1109299A3 (fr) * 1999-12-14 2002-03-20 Mitsubishi Denki Kabushiki Kaisha Procédé de fabrication d'un alternateur
US6657352B1 (en) 1999-12-27 2003-12-02 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
KR100396805B1 (ko) * 1999-12-27 2003-09-02 미쓰비시덴키 가부시키가이샤 교류발전기의 제조방법
US6687974B1 (en) 1999-12-27 2004-02-10 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing an alternator
US6717316B2 (en) 1999-12-27 2004-04-06 Mitsubishi Denki Kabushiki Kaisha Alternator and method of manufacture therefor
US6760965B2 (en) 1999-12-27 2004-07-13 Mitsubishi Denki Kabushiki Kaisha Method for manufacturing an alternator
JP2003520559A (ja) * 2000-01-20 2003-07-02 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 電気機械のためのコア巻線を有する磁気的に励起可能なコアを製作する方法、この方法で制作されたコア巻線を有する磁気的に励起可能なコア並びにこの方法で制作されたコア巻線を有するコアを備えた電気機械
JP2012196133A (ja) * 2000-01-20 2012-10-11 Robert Bosch Gmbh 電気機械のためのコア巻線を有する磁気的に励起可能なコアを製作する方法、この方法で制作されたコア巻線を有する磁気的に励起可能なコア並びにこの方法で制作されたコア巻線を有するコアを備えた電気機械
US6441527B1 (en) * 2000-02-10 2002-08-27 Mitsubishi Denki Kabushiki Kaisha A.C. generator for vehicle
US6710496B2 (en) 2000-10-16 2004-03-23 Mitsubishi Denki Kabushiki Kaisha Stator for an alternator and method of manufacturing the same
JP4608775B2 (ja) * 2000-12-20 2011-01-12 日産自動車株式会社 回転電機
JP2002191148A (ja) * 2000-12-20 2002-07-05 Nissan Motor Co Ltd 回転電機
KR100444939B1 (ko) * 2001-09-17 2004-08-18 미쓰비시덴키 가부시키가이샤 교류발전기의 고정자 및 그의 제조방법
US6960857B2 (en) 2001-09-17 2005-11-01 Mitsubishi Denki Kabushiki Kaisha Stator for an alternator and method for the manufacture thereof
WO2004062065A1 (fr) * 2002-12-26 2004-07-22 Mitsubishi Denki Kabushiki Kaisha Stator de machine dynamoelectrique et procede de fabrication d'un enroulement de stator
US7132775B2 (en) 2002-12-26 2006-11-07 Mitsubishi Denki Kabushiki Kaisha Stator of dynamoelectric machine and method for manufacturing stator winding
EP1463184A3 (fr) * 2003-03-25 2004-11-17 Delphi Technologies, Inc. méthode de processus d'insertion des conducteurs à epingle dans un culasse aux extrémités de dent déformables
EP1463184A2 (fr) * 2003-03-25 2004-09-29 Delphi Technologies, Inc. Méthode de processus d'insertion des conducteurs à épingle dans une culasse aux extrémités de dent déformables
JP2007267463A (ja) * 2006-03-28 2007-10-11 Hitachi Ltd 回転電機及び回転電機の製造方法
JP2008125298A (ja) * 2006-11-14 2008-05-29 Mosutetsuku:Kk 線材、及び線材の製造治具
JP4624334B2 (ja) * 2006-11-14 2011-02-02 スミダ電機株式会社 線材、線材の製造治具、及び線材の製造方法
US11171528B2 (en) 2008-09-23 2021-11-09 Aerovironment, Inc. Compressed motor winding
US9035526B2 (en) * 2008-09-23 2015-05-19 Aerovironment, Inc. Compressed motor winding
US9825497B2 (en) 2008-09-23 2017-11-21 Aerovironment, Inc. Compressed motor winding
US10601273B2 (en) 2008-09-23 2020-03-24 Aerovironment, Inc. Compressed motor winding
US20100194231A1 (en) * 2008-09-23 2010-08-05 Aerovironment, Inc. Compressed motor winding
US11942842B2 (en) 2008-09-23 2024-03-26 Aerovironment, Inc. Compressed motor winding
WO2017085953A1 (fr) * 2015-11-17 2017-05-26 三菱電機株式会社 Dispositif de formation de bobine et procédé de formation de bobine
JPWO2017085953A1 (ja) * 2015-11-17 2018-02-08 三菱電機株式会社 コイル成形装置及びコイル成形方法
US10784737B2 (en) 2015-12-25 2020-09-22 Aisin Seiki Kabushiki Kaisha Rotating electrical machine and method for manufacturing same
JP2021182794A (ja) * 2020-05-18 2021-11-25 トヨタ紡織株式会社 電機子の製造方法
CN116032082A (zh) * 2023-03-28 2023-04-28 邦迪智能装备(河南)有限公司 一种用于扁线电机定子生产的线圈成型设备
CN116032082B (zh) * 2023-03-28 2023-06-02 邦迪智能装备(河南)有限公司 一种用于扁线电机定子生产的线圈成型设备

Also Published As

Publication number Publication date
GB2202170A (en) 1988-09-21
DE3803752A1 (de) 1988-08-25
KR880010538A (ko) 1988-10-10
FR2610770A1 (fr) 1988-08-12
GB8802404D0 (en) 1988-03-02

Similar Documents

Publication Publication Date Title
JPS63194543A (ja) 車両用交流発電機の固定子及びその製造方法
EP2991199B1 (fr) Bobine d'induit et son procédé de fabrication
JP2523933B2 (ja) ステ―タの製造方法
DE102012007232B4 (de) Verfahren zur Herstellung von rotierenden elektrischen Maschinen
US20070145854A1 (en) Motor
US6742238B2 (en) Flare tooth stator for an AC generator
CN101483361B (zh) 无槽电机定子绕组结构及其绕线方法及具有上述绕组结构的定子结构
CN103296797B (zh) 旋转电机的定子
KR102024972B1 (ko) 고정자
JPH09215238A (ja) 回転機および成形方法
US20030033709A1 (en) High slot-fill stator
CN105981266B (zh) 旋转电机以及旋转电机的线圈的制造方法
CN104782032A (zh) 旋转电机
CN211629956U (zh) 一种线圈、定子及电机
US6851175B2 (en) Wound stator core and method of making
CN105551583B (zh) 扁立线圈用扁平绝缘电线及其制造方法
US20150084449A1 (en) Rotary electric machine
CN107852055A (zh) 由高频利兹线构成的线圈绕组，具有线圈绕组的电机及其制造方法
US3818585A (en) Method of manufacturing yoke assemblies
KR20190037759A (ko) 분포권 평각형 전기자 권선 및 이를 포함하는 모터, 그리고 이들의 제조방법
US1306625A (en) Dynamo-electric machine
CN210985780U (zh) 一种电机的定子组件及电机
CN106532993A (zh) 一种isg电机的电磁结构及isg电机
JPH0258855B2 (fr)
US4047062A (en) Rotating electrical machine