DK2498267T3 - Lagdelt magnet - Google Patents
Lagdelt magnet Download PDFInfo
- Publication number
- DK2498267T3 DK2498267T3 DK11157463.8T DK11157463T DK2498267T3 DK 2498267 T3 DK2498267 T3 DK 2498267T3 DK 11157463 T DK11157463 T DK 11157463T DK 2498267 T3 DK2498267 T3 DK 2498267T3
- Authority
- DK
- Denmark
- Prior art keywords
- magnet
- layer
- layered
- magnetic
- electric machine
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/008—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression characterised by the composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
- H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
- H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Claims (13)
1. Lagdelt sjælden jordart-permanentmagnet (1, 1') til en magnetindretning af en elektrisk maskine (2), hvilken lagdelte magnet (1, V) omfatter et antal primære magnetlag (10, 10’) og et antal underordnede magnetlag (11, 12, 13, 11', 12', 13', 14), hvor hvert magnetlag (10, 10', 11, 12, 13, 11', 12', 13', 14) omfatter en ferromagnet med en lagkoncentration af en lanthanid, og hvor lagkoncentrationen af lanthaniden er højest i et primært magnetlag (10, 10’), hvor det primære magnetlag (10, 10') er anbragt i et udvendigt område af den lagdelte magnet (1, V), kendetegnet ved, at den lagdelte magnet (1, V) omfatter en monteringsoverflade (30) og mindst én sideflade (31), og hvor lagkoncentrationerne af lanthaniden falder hen imod monteringsoverfladen (30) og stiger hen imod sidefladen (31).
2. Lagdelt magnet ifølge krav 1, hvor lanthaniden omfatter dysprosium, og hvor lagkoncentrationen af dysprosium i et primært magnetlag (10, 10’) omfatter mindst 5 %, og lagkoncentrationen af dysprosium i et underordnet magnetlag (11, 12, 13, 11', 12', 13', 14) omfatter højst 3 % af magnetlagets masse.
3. Lagdelt magnet ifølge krav 1 eller krav 2, hvor det samlede dysprosium-indhold i magnetlagene (10, 10', 11, 12, 13, 11', 12', 13', 14) omfatter højst 4,8 %, mere fortrinsvis højst 4,4 %, mest fortrinsvis højst 4 % af massen af den lagdelte magnet (1, 1').
4. Lagdelt magnet ifølge et hvilket som helst af de foregående krav, hvor et primært magnetlag (10, 10') har en lagtykkelse, der er større end tykkelsen af et hvilket som helst underordnet magnetlag (11,12,13, 11', 12', 13', 14).
5. Lagdelt magnet ifølge et hvilket som helst af de foregående krav, omfattende en horisontal stak (S) af magnetlag (10, 11, 12, 13, 14) til anbringelse i det væsentlige parallelt med en udvendig overflade af en rotor eller stator af den elektriske maskine (2).
6. Lagdelt magnet ifølge et hvilket som helst af de foregående krav, hvor den lagdelte magnet (1, 1') omfatter en vertikal stak (S') af magnetlag (10' 11', 12', 13') til anbringelse i det væsentlige vinkelret på en udvendig overflade af en rotor eller stator af den elektriske maskine (2).
7. Fremgangsmåde til fremstilling af en lagdelt magnet (1, 1') til en magnetindretning af en elektrisk maskine (2), hvilken fremgangsmåde omfatter trinnene - at opnå et antal primære magnetlag (10, 10') og et antal underordnede magnetlag (11, 12, 13, 11', 12', 13', 14), hvor hvert magnetlag (10, 10', 11, 12, 13, 11', 12', 13', 14) omfatter en ferromagnet; - at indføre lagkoncentrationer af en lanthanid i magnetlagene (10, 10', 11, 12, 13, 11', 12', 13', 14) således, at lagkoncentrationen af lanthaniden er højest i et primært magnetlag (10, 10'); og - at anbringe magnetlagene (10, 10', 11, 12, 13, 11', 12', 13', 14) således, at det giver en lagdelt magnet (Μ, M') med en monteringsoverflade (30) og mindst én sideflade (31), hvor lagkoncentrationerne af lanthaniden falder hen imod monteringsoverfladen (30) og stiger hen imod sidefladen (31), og hvor det primære magnetlag (10, 10') er anbragt i et udvendigt område af den lagdelte magnet (1, 1').
8. Fremgangsmåde ifølge krav 7, hvor lanthanid-fraktionen af et magnetlag (10, 10', 11, 12, 13, 11', 12', 13', 14) diffunderes ind i dette magnetlag (10, 10', 11, 12,13, 11', 12', 13', 14) i en diffusionproces.
9. Fremgangsmåde ifølge krav 7 eller krav 8, hvor den lagdelte magnet (1,1') samles ved at presse og/eller lime magnetlagene (10, 10', 11, 12, 13, 11', 12’, 13’, 14) sammen.
10. Magnetindretning til en elektrisk maskine (2), hvilken magnetindretning omfatter en flerhed af lagdelte magneter (10, 10’, 11, 12, 13, 11', 12', 13', 14) ifølge et hvilket som helst af kravene 1 til 6, anbragt på en rotor eller stator af den elektriske maskine (2).
11. Elektrisk maskine (2) omfattende en magnetindretning ifølge krav 10.
12. Elektrisk maskine ifølge krav 11, hvor magnetindretningen er anbragt på rotoren (20) af den elektriske maskine (2).
13. Elektrisk maskine ifølge krav 12, hvor den elektriske maskine (2) er en multipolgenerator af en vindmølle.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11157463.8A EP2498267B1 (en) | 2011-03-09 | 2011-03-09 | Layered magnet |
Publications (1)
Publication Number | Publication Date |
---|---|
DK2498267T3 true DK2498267T3 (da) | 2017-08-28 |
Family
ID=43829373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK11157463.8T DK2498267T3 (da) | 2011-03-09 | 2011-03-09 | Lagdelt magnet |
Country Status (8)
Country | Link |
---|---|
US (1) | US20120229239A1 (da) |
EP (1) | EP2498267B1 (da) |
JP (1) | JP6245790B2 (da) |
KR (1) | KR20120103494A (da) |
CN (3) | CN102684323A (da) |
BR (1) | BR102012005246A2 (da) |
DK (1) | DK2498267T3 (da) |
IN (1) | IN2012DE00278A (da) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2498267B1 (en) * | 2011-03-09 | 2017-06-14 | Siemens Aktiengesellschaft | Layered magnet |
KR101405802B1 (ko) * | 2012-12-12 | 2014-06-12 | 현대자동차주식회사 | 온도분포를 고려한 구동모터의 회전자 영구자석 장치 |
ITMI20122268A1 (it) * | 2012-12-28 | 2014-06-29 | Wilic Sarl | Macchina elettrica |
GB2511574B (en) * | 2013-03-08 | 2017-10-04 | Magnomatics Ltd | Permanent magnet assembly for mounting to a rotor |
JP6464552B2 (ja) * | 2013-10-04 | 2019-02-06 | 大同特殊鋼株式会社 | RFeB系磁石及びその製造方法 |
JP6331317B2 (ja) * | 2013-10-04 | 2018-05-30 | 大同特殊鋼株式会社 | 結合型RFeB系磁石及びその製造方法 |
CN105281530B (zh) * | 2014-07-11 | 2018-11-09 | 上海微电子装备(集团)股份有限公司 | 具有重力补偿功能的圆筒型音圈电机 |
CN104578636B (zh) * | 2015-01-20 | 2017-01-25 | 东南大学 | 一种双定子轴向磁场磁通切换型混合永磁记忆电机 |
JP6550954B2 (ja) * | 2015-06-19 | 2019-07-31 | 日産自動車株式会社 | 回転電機、磁石、及び磁石の製造方法 |
DE102016125558A1 (de) * | 2016-12-23 | 2018-06-28 | Scanlab Gmbh | Galvanometerantrieb mit mehrschichtigen Permanentmagneten |
US10177631B1 (en) | 2017-10-10 | 2019-01-08 | Zero E Technologies, Llc | Electric machine stator cooling systems and methods |
CN111742379B (zh) * | 2017-12-19 | 2023-01-31 | Abb瑞士股份有限公司 | 用于电机的多构件磁体组件 |
CN109787439A (zh) * | 2019-03-19 | 2019-05-21 | 上海电气风电集团有限公司 | 电机转子的制造方法、电机转子及电机 |
CN111064289B (zh) * | 2019-12-30 | 2022-05-17 | 智车优行科技(上海)有限公司 | 一种永磁同步电机、转子、转子磁钢及车辆 |
CN114731075A (zh) * | 2020-07-23 | 2022-07-08 | 华为数字能源技术有限公司 | 电机转子和电机 |
EP3955428A1 (en) * | 2020-08-14 | 2022-02-16 | Siemens Gamesa Renewable Energy A/S | Magnet assembly comprising a focused magnetic flux portion and a parallel magnetic flux portion |
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JP4150983B2 (ja) * | 1998-05-07 | 2008-09-17 | 日立金属株式会社 | 電気抵抗率の傾斜機能を有する永久磁石とその製造方法 |
AU2430500A (en) * | 1999-02-10 | 2000-08-29 | Multipolgenerator Aps | An electric multipole motor/generator with axial magnetic flux |
CN1287503C (zh) * | 2002-03-20 | 2006-11-29 | 大金工业株式会社 | 永久磁铁型电动机及使用该电动机的压缩机 |
JP2005039255A (ja) * | 2003-07-03 | 2005-02-10 | Neomax Co Ltd | 希土類永久磁石、回転機ならびに風力発電機 |
US6850140B1 (en) * | 2003-09-10 | 2005-02-01 | Magnetic Technologies Corporation | Layered magnets and methods for producing same |
JP4677942B2 (ja) * | 2006-03-31 | 2011-04-27 | 日立金属株式会社 | R−Fe−B系希土類焼結磁石の製造方法 |
CN101022052B (zh) * | 2006-11-21 | 2010-04-14 | 陈赟 | 一种永磁铁氧体磁瓦的制造方法 |
US8421292B2 (en) * | 2007-03-27 | 2013-04-16 | Hitachi Metals, Ltd. | Permanent magnet motor having composite magnets and manufacturing method thereof |
JP2009027846A (ja) * | 2007-07-20 | 2009-02-05 | Daido Steel Co Ltd | 永久磁石およびこれを用いた表面磁石型モータ |
JP2009153356A (ja) * | 2007-12-25 | 2009-07-09 | Hitachi Ltd | 自己始動式永久磁石同期電動機 |
JP4672030B2 (ja) * | 2008-01-31 | 2011-04-20 | 日立オートモティブシステムズ株式会社 | 焼結磁石及びそれを用いた回転機 |
FR2927481B1 (fr) * | 2008-02-08 | 2010-12-10 | Alstom Transport Sa | Procede de montage d'un pole magnetique et rotor associe. |
JP2009225608A (ja) * | 2008-03-18 | 2009-10-01 | Nitto Denko Corp | モータ用永久磁石及びモータ用永久磁石の製造方法 |
JP2010022147A (ja) * | 2008-07-11 | 2010-01-28 | Hitachi Ltd | 焼結磁石モータ |
CN101409121B (zh) * | 2008-08-05 | 2011-01-05 | 中钢集团安徽天源科技股份有限公司 | 电机用钕铁硼永磁体及其制造方法 |
US8510933B2 (en) * | 2008-10-02 | 2013-08-20 | Nissan Motor Co., Ltd. | Method of manufacturing a field pole magnet |
JP5262643B2 (ja) * | 2008-12-04 | 2013-08-14 | 信越化学工業株式会社 | Nd系焼結磁石及びその製造方法 |
EP2498267B1 (en) * | 2011-03-09 | 2017-06-14 | Siemens Aktiengesellschaft | Layered magnet |
-
2011
- 2011-03-09 EP EP11157463.8A patent/EP2498267B1/en not_active Not-in-force
- 2011-03-09 DK DK11157463.8T patent/DK2498267T3/da active
-
2012
- 2012-02-01 IN IN278DE2012 patent/IN2012DE00278A/en unknown
- 2012-03-07 US US13/413,918 patent/US20120229239A1/en not_active Abandoned
- 2012-03-08 BR BR102012005246-6A patent/BR102012005246A2/pt not_active IP Right Cessation
- 2012-03-08 JP JP2012052118A patent/JP6245790B2/ja active Active
- 2012-03-08 KR KR1020120024063A patent/KR20120103494A/ko not_active Application Discontinuation
- 2012-03-09 CN CN2012100609171A patent/CN102684323A/zh active Pending
- 2012-03-09 CN CN201810676294.8A patent/CN108847723A/zh active Pending
- 2012-03-09 CN CN201810678009.6A patent/CN108847724A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20120103494A (ko) | 2012-09-19 |
BR102012005246A2 (pt) | 2013-11-26 |
JP6245790B2 (ja) | 2017-12-13 |
JP2012191211A (ja) | 2012-10-04 |
US20120229239A1 (en) | 2012-09-13 |
EP2498267B1 (en) | 2017-06-14 |
IN2012DE00278A (da) | 2015-04-03 |
CN102684323A (zh) | 2012-09-19 |
CN108847723A (zh) | 2018-11-20 |
EP2498267A1 (en) | 2012-09-12 |
CN108847724A (zh) | 2018-11-20 |
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