WO2019207173A3 - Manufacturing flux focused magnet using a changing magnetization - Google Patents

Manufacturing flux focused magnet using a changing magnetization Download PDF

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Publication number
WO2019207173A3
WO2019207173A3 PCT/EP2019/072048 EP2019072048W WO2019207173A3 WO 2019207173 A3 WO2019207173 A3 WO 2019207173A3 EP 2019072048 W EP2019072048 W EP 2019072048W WO 2019207173 A3 WO2019207173 A3 WO 2019207173A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
magnetic flux
magnet
powder
molding chamber
Prior art date
Application number
PCT/EP2019/072048
Other languages
French (fr)
Other versions
WO2019207173A2 (en
Inventor
Ziad Azar
Qingfang HUANG
Hans-joergen Thougaard
Qingkun TONG
Adriana Cristina Urda
Original Assignee
Siemens Gamesa Renewable Energy A/S
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 Siemens Gamesa Renewable Energy A/S filed Critical Siemens Gamesa Renewable Energy A/S
Priority to EP19761771.5A priority Critical patent/EP3948904A2/en
Publication of WO2019207173A2 publication Critical patent/WO2019207173A2/en
Publication of WO2019207173A3 publication Critical patent/WO2019207173A3/en

Links

Classifications

    • 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
    • H01F41/0273—Imparting anisotropy
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • 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
    • H01F41/0266—Moulding; Pressing
    • 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
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • 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
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/06—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/08—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/086—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together sintered
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Abstract

It is described an apparatus (460) and a method for manufacturing a permanent magnet (250, 350). The apparatus (460) comprises (a) a mold (470) having a molding chamber (472) for receiving a powder of a permanent magnet material (495); (b) a first magnetic device (461) and a second magnetic device (464) for generating a magnetic flux for magnetizing the powder being accommodated within the molding chamber; (c) a die for compacting the powder being accommodated within the molding chamber; and (d) a magnetic element (480) for spatially guiding and/or modifying the magnetic flux. The magnetic element is located and movably supported in a region extending between the first magnetic device and the second magnetic device such that in a first position (480a) there is given a first spatial magnetic flux distribution and in a second position (480b) there is given a second spatial magnetic flux distribution being different from the first spatial magnetic flux distribution. Further described is a magnet (350) produced with the described method and an electromechanical transducer (140) as well as a wind turbine (100) comprising such a magnet (350).
PCT/EP2019/072048 2019-05-10 2019-08-16 Manufacturing flux focused magnet using a changing magnetization WO2019207173A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19761771.5A EP3948904A2 (en) 2019-05-10 2019-08-16 Manufacturing flux focused magnet using a changing magnetization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910389532.1 2019-05-10
CN201910389532.1A CN111916282A (en) 2019-05-10 2019-05-10 Manufacturing flux-focused magnets using varying magnetization

Publications (2)

Publication Number Publication Date
WO2019207173A2 WO2019207173A2 (en) 2019-10-31
WO2019207173A3 true WO2019207173A3 (en) 2020-04-02

Family

ID=67809428

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/072048 WO2019207173A2 (en) 2019-05-10 2019-08-16 Manufacturing flux focused magnet using a changing magnetization

Country Status (3)

Country Link
EP (1) EP3948904A2 (en)
CN (1) CN111916282A (en)
WO (1) WO2019207173A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4026631A1 (en) * 2021-01-07 2022-07-13 Siemens Gamesa Renewable Energy A/S Apparatus and method for manufacturing a monolithic permanent magnet with a focused and a parallel magnetic flux region

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432158B1 (en) * 1999-10-25 2002-08-13 Sumitomo Special Metals Co., Ltd. Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet
DE102005043874A1 (en) * 2005-09-14 2007-03-22 Mitsubishi Denki K.K. Sintered ring magnet useful in electric motors comprises a stack of annular powder preforms that are sintered together and has a projection or recess at one or both ends
EP2722855A1 (en) * 2012-10-19 2014-04-23 Siemens Aktiengesellschaft Nd-Fe-B permanent magnet without Dysprosium, rotor assembly, electromechanical transducer, wind turbine
DE102014105172A1 (en) * 2014-04-11 2015-10-15 Vacuumschmelze Gmbh & Co. Kg METHOD FOR PRODUCING A PERMANENT MAGNET, METHOD FOR SIMULTANEOUS MANUFACTURE OF AT LEAST TWO PERMANENT MAGNETS, PROCESS FOR PREPARING A FIRST AND A SECOND MAGNET AND METHOD FOR PRODUCING A ROTOR

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8400038B2 (en) 2011-04-13 2013-03-19 Boulder Wind Power, Inc. Flux focusing arrangement for permanent magnets, methods of fabricating such arrangements, and machines including such arrangements
US9312057B2 (en) 2013-01-30 2016-04-12 Arnold Magnetic Technologies Ag Contoured-field magnets
TWI674594B (en) 2015-03-24 2019-10-11 日商日東電工股份有限公司 Sintered body for rare earth magnet formation and rare earth sintered magnet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432158B1 (en) * 1999-10-25 2002-08-13 Sumitomo Special Metals Co., Ltd. Method and apparatus for producing compact of rare earth alloy powder and rare earth magnet
DE102005043874A1 (en) * 2005-09-14 2007-03-22 Mitsubishi Denki K.K. Sintered ring magnet useful in electric motors comprises a stack of annular powder preforms that are sintered together and has a projection or recess at one or both ends
EP2722855A1 (en) * 2012-10-19 2014-04-23 Siemens Aktiengesellschaft Nd-Fe-B permanent magnet without Dysprosium, rotor assembly, electromechanical transducer, wind turbine
DE102014105172A1 (en) * 2014-04-11 2015-10-15 Vacuumschmelze Gmbh & Co. Kg METHOD FOR PRODUCING A PERMANENT MAGNET, METHOD FOR SIMULTANEOUS MANUFACTURE OF AT LEAST TWO PERMANENT MAGNETS, PROCESS FOR PREPARING A FIRST AND A SECOND MAGNET AND METHOD FOR PRODUCING A ROTOR

Also Published As

Publication number Publication date
WO2019207173A2 (en) 2019-10-31
EP3948904A2 (en) 2022-02-09
CN111916282A (en) 2020-11-10

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