GB1503708A - Rare earth permanent magnet rotor for dynamo electric machines and method of manufacturing same - Google Patents

Rare earth permanent magnet rotor for dynamo electric machines and method of manufacturing same

Info

Publication number
GB1503708A
GB1503708A GB3532175A GB3532175A GB1503708A GB 1503708 A GB1503708 A GB 1503708A GB 3532175 A GB3532175 A GB 3532175A GB 3532175 A GB3532175 A GB 3532175A GB 1503708 A GB1503708 A GB 1503708A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
rare earth
magnet rotor
electric machines
earth permanent
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.)
Expired
Application number
GB3532175A
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.)
Kollmorgen Corp
Original Assignee
Kollmorgen Corp
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
Priority claimed from US05/502,213 external-priority patent/US3937993A/en
Priority claimed from US05/576,125 external-priority patent/US3991331A/en
Priority claimed from US05/586,909 external-priority patent/US3979821A/en
Application filed by Kollmorgen Corp filed Critical Kollmorgen Corp
Publication of GB1503708A publication Critical patent/GB1503708A/en
Expired legal-status Critical Current

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]
    • 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
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H02K13/006—Structural associations of commutators
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K25/00—DC interrupter motors or generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Dc Machiner (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

1503708 Core constructions for dynamoelectric machines KOLLMORGEN CORP 27 Aug 1975 [30 Aug 1974 9 May 1975 16 June 1975] 35321/75 Heading H2A To enable the permanent magnets 46, 47 of an electric motor rotor comprising the magnets and soft magnetic polepieces 45 to be magnetized in situ the pole-pieces 45 have flux carrying cross-sectional areas which are at least 1À5 times larger than is required to carry the flux of the magnets, when magnetized, without saturation.
GB3532175A 1974-08-30 1975-08-27 Rare earth permanent magnet rotor for dynamo electric machines and method of manufacturing same Expired GB1503708A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/502,213 US3937993A (en) 1974-05-20 1974-08-30 Commutating structure for DC machines
US05/576,125 US3991331A (en) 1973-07-30 1975-05-09 Commutating structure for DC machines
US05/586,909 US3979821A (en) 1975-05-09 1975-06-16 Method of manufacturing rare earth permanent magnet rotor

Publications (1)

Publication Number Publication Date
GB1503708A true GB1503708A (en) 1978-03-15

Family

ID=27414199

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3532175A Expired GB1503708A (en) 1974-08-30 1975-08-27 Rare earth permanent magnet rotor for dynamo electric machines and method of manufacturing same

Country Status (8)

Country Link
JP (1) JPS576340B2 (en)
CA (1) CA1035403A (en)
CH (1) CH589379A5 (en)
DE (1) DE2538320B2 (en)
FR (1) FR2283572A1 (en)
GB (1) GB1503708A (en)
IE (1) IE43265B1 (en)
IT (1) IT1044440B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440193A1 (en) * 1983-11-03 1985-05-23 Kollmorgen Technologies Corp., Dallas, Tex. RUNNER WITH PERMANENT MAGNETS
EP0856932A1 (en) * 1997-01-29 1998-08-05 IDM S.r.l. Electrical generator with an inner rotor, for small internal combustion engines
EP1098421A2 (en) * 1999-11-08 2001-05-09 Isuzu Motors Limited Rotor of rotating machine and method for producing same
EP1100175A2 (en) * 1999-11-10 2001-05-16 Isuzu Motors Limited Rotor of rotating machine
EP1420499A1 (en) * 2002-11-15 2004-05-19 Minebea Co., Ltd. Rotor with embedded permanent magnets
US6927519B2 (en) 2002-11-15 2005-08-09 Minebea Co., Ltd. Rotor assembly for an electrical machine and permanent magnet motor comprising such a rotor assembly
DE102009026288A1 (en) * 2009-07-29 2011-02-10 Sabinski, Joachim, Dr.-Ing. Permanent magnetic rotor with protected and sunk arranged, radially aligned permanent magnet with tangential orientation of the magnetic poles as an internal rotor design or external rotor design of rotating electrical machines and method for mounting these permanent magnet rotor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846857A (en) * 1981-09-11 1983-03-18 Fanuc Ltd Manufacture of rotor for synchronous motor
DE3245400A1 (en) * 1982-12-08 1984-06-14 Robert Bosch Gmbh, 7000 Stuttgart PERMANENTLY DRIVEN GENERATOR FOR VEHICLES
JPS59230454A (en) * 1983-06-10 1984-12-25 Fanuc Ltd Manufacture of permanent magnet field rotor
JPS62193537A (en) * 1986-02-17 1987-08-25 Fanuc Ltd Permanent field rotor
JP2574007B2 (en) * 1988-08-02 1997-01-22 ファナック株式会社 Synchronous motor rotor
CN102315710B (en) * 2010-07-01 2014-03-26 京能新能源科技（上海）有限公司 Fixing structure of permanent magnet generator or motor permanent magnet
JP6282795B2 (en) * 2011-11-10 2018-02-21 日本電産株式会社 motor
JP5888490B2 (en) * 2011-11-10 2016-03-22 日本電産株式会社 motor
DE102021118832A1 (en) * 2021-07-21 2023-01-26 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Rotor for an electrical machine, electrical machine and method for operating an electrical machine
EP4220900A1 (en) * 2022-01-28 2023-08-02 Siemens Aktiengesellschaft Dynamo-electric rotary machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1272067A (en) * 1960-07-19 1961-09-22 Comp Generale Electricite Alternator rotor
US3768054A (en) * 1972-04-03 1973-10-23 Gen Electric Low flux leakage magnet construction

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3440193A1 (en) * 1983-11-03 1985-05-23 Kollmorgen Technologies Corp., Dallas, Tex. RUNNER WITH PERMANENT MAGNETS
EP0856932A1 (en) * 1997-01-29 1998-08-05 IDM S.r.l. Electrical generator with an inner rotor, for small internal combustion engines
US6392324B1 (en) 1999-08-11 2002-05-21 Isuzu Motors Limited Rotor of rotating machine and method for producing same
EP1098421A2 (en) * 1999-11-08 2001-05-09 Isuzu Motors Limited Rotor of rotating machine and method for producing same
EP1098421A3 (en) * 1999-11-08 2001-10-24 Isuzu Motors Limited Rotor of rotating machine and method for producing same
EP1100175A2 (en) * 1999-11-10 2001-05-16 Isuzu Motors Limited Rotor of rotating machine
EP1100175A3 (en) * 1999-11-10 2001-06-27 Isuzu Motors Limited Rotor of rotating machine
US6429566B1 (en) 1999-11-10 2002-08-06 Isuzu Motors Limited Rotor of rotating machine
EP1420499A1 (en) * 2002-11-15 2004-05-19 Minebea Co., Ltd. Rotor with embedded permanent magnets
US6897590B2 (en) 2002-11-15 2005-05-24 Minebea Co., Ltd. Rotor assembly for a permanent magnet electrical machine comprising such a rotor assembly
US6927519B2 (en) 2002-11-15 2005-08-09 Minebea Co., Ltd. Rotor assembly for an electrical machine and permanent magnet motor comprising such a rotor assembly
DE102009026288A1 (en) * 2009-07-29 2011-02-10 Sabinski, Joachim, Dr.-Ing. Permanent magnetic rotor with protected and sunk arranged, radially aligned permanent magnet with tangential orientation of the magnetic poles as an internal rotor design or external rotor design of rotating electrical machines and method for mounting these permanent magnet rotor

Also Published As

Publication number Publication date
CA1035403A (en) 1978-07-25
IE43265B1 (en) 1981-01-28
JPS5150408A (en) 1976-05-04
IE43265L (en) 1976-02-29
DE2538320B2 (en) 1980-01-24
CH589379A5 (en) 1977-06-30
IT1044440B (en) 1980-03-20
JPS576340B2 (en) 1982-02-04
FR2283572A1 (en) 1976-03-26
DE2538320A1 (en) 1976-03-18
FR2283572B1 (en) 1978-04-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee