GB2505473B - Mounting and cooling magnets in an electric machine - Google Patents

Mounting and cooling magnets in an electric machine

Info

Publication number
GB2505473B
GB2505473B GB1215532.1A GB201215532A GB2505473B GB 2505473 B GB2505473 B GB 2505473B GB 201215532 A GB201215532 A GB 201215532A GB 2505473 B GB2505473 B GB 2505473B
Authority
GB
United Kingdom
Prior art keywords
mounting
electric machine
magnets
cooling
cooling magnets
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 - Fee Related
Application number
GB1215532.1A
Other versions
GB201215532D0 (en
GB2505473A (en
Inventor
Scott Semken Robert
Jaakko Pyrhonen Juha
Alexandrova Yulia
Polikarpova Maria
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.)
Lappeenrannan Teknillinen Yliopisto
Original Assignee
Lappeenrannan Teknillinen Yliopisto
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 Lappeenrannan Teknillinen Yliopisto filed Critical Lappeenrannan Teknillinen Yliopisto
Priority to GB1215532.1A priority Critical patent/GB2505473B/en
Publication of GB201215532D0 publication Critical patent/GB201215532D0/en
Priority to EP15199398.7A priority patent/EP3026790B8/en
Priority to EP15199386.2A priority patent/EP3051665B1/en
Priority to CN201380057178.3A priority patent/CN104969444B/en
Priority to CN201810936029.9A priority patent/CN109149799A/en
Priority to CN202010214119.4A priority patent/CN111384794B/en
Priority to PCT/IB2013/058098 priority patent/WO2014033647A2/en
Priority to EP13792076.5A priority patent/EP2893615B8/en
Priority to KR1020157008307A priority patent/KR102090317B1/en
Priority to KR1020207007261A priority patent/KR20200031178A/en
Priority to KR1020207007262A priority patent/KR20200031179A/en
Priority to EP15199400.1A priority patent/EP3032704B1/en
Priority to EP15199389.6A priority patent/EP3032703B1/en
Priority to US14/425,085 priority patent/US9935506B2/en
Priority to CN202010213354.XA priority patent/CN111313575A/en
Priority to EP15199399.5A priority patent/EP3051666A1/en
Publication of GB2505473A publication Critical patent/GB2505473A/en
Application granted granted Critical
Publication of GB2505473B publication Critical patent/GB2505473B/en
Priority to US15/927,247 priority patent/US10541573B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
    • 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
    • H02K1/26—Rotor cores with slots for windings
    • 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
    • H02K1/2783—Surface mounted magnets; Inset magnets with magnets arranged in Halbach arrays
    • 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
    • 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
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H02K1/325—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium between salient poles
    • 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
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • 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
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
    • H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
    • 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
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • H02K1/2786—Outer rotors
    • 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
    • H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components
    • 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
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
    • 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
    • H02K7/08—Structural association with bearings
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
GB1215532.1A 2012-08-31 2012-08-31 Mounting and cooling magnets in an electric machine Expired - Fee Related GB2505473B (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
GB1215532.1A GB2505473B (en) 2012-08-31 2012-08-31 Mounting and cooling magnets in an electric machine
KR1020207007262A KR20200031179A (en) 2012-08-31 2013-08-29 Electrical machine
EP15199389.6A EP3032703B1 (en) 2012-08-31 2013-08-29 Electrical machine
CN201380057178.3A CN104969444B (en) 2012-08-31 2013-08-29 Motor
CN201810936029.9A CN109149799A (en) 2012-08-31 2013-08-29 Motor
CN202010214119.4A CN111384794B (en) 2012-08-31 2013-08-29 Electrical machine
PCT/IB2013/058098 WO2014033647A2 (en) 2012-08-31 2013-08-29 Electrical machine
EP13792076.5A EP2893615B8 (en) 2012-08-31 2013-08-29 Electrical machine
KR1020157008307A KR102090317B1 (en) 2012-08-31 2013-08-29 Electrical machine
KR1020207007261A KR20200031178A (en) 2012-08-31 2013-08-29 Electrical machine
EP15199398.7A EP3026790B8 (en) 2012-08-31 2013-08-29 Electrical machine
EP15199400.1A EP3032704B1 (en) 2012-08-31 2013-08-29 Electrical machine
EP15199386.2A EP3051665B1 (en) 2012-08-31 2013-08-29 Electrical machine
US14/425,085 US9935506B2 (en) 2012-08-31 2013-08-29 Electrical machine
CN202010213354.XA CN111313575A (en) 2012-08-31 2013-08-29 Electric machine
EP15199399.5A EP3051666A1 (en) 2012-08-31 2013-08-29 Electrical machine
US15/927,247 US10541573B2 (en) 2012-08-31 2018-03-21 Electrical machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215532.1A GB2505473B (en) 2012-08-31 2012-08-31 Mounting and cooling magnets in an electric machine

Publications (3)

Publication Number Publication Date
GB201215532D0 GB201215532D0 (en) 2012-10-17
GB2505473A GB2505473A (en) 2014-03-05
GB2505473B true GB2505473B (en) 2016-05-18

Family

ID=47075053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1215532.1A Expired - Fee Related GB2505473B (en) 2012-08-31 2012-08-31 Mounting and cooling magnets in an electric machine

Country Status (1)

Country Link
GB (1) GB2505473B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3809561A1 (en) * 2019-10-18 2021-04-21 Siemens Gamesa Renewable Energy A/S Support structure for a generator of a wind turbine
CN112865364A (en) * 2020-12-31 2021-05-28 西门子电动汽车动力总成系统(上海)有限公司 Motor component, motor vehicle and method for assembling motor component
GB2614454B (en) * 2021-06-24 2024-06-05 Eta Green Power Ltd Rotor for an electric machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61106049A (en) * 1984-10-25 1986-05-24 Yaskawa Electric Mfg Co Ltd Permanent magnet rotor of rotary electric machine
JP2004023864A (en) * 2002-06-14 2004-01-22 Meidensha Corp Rotor of permanent magnet rotary electric machine
JP2005354768A (en) * 2004-06-09 2005-12-22 Okuma Corp Surface magnet type magnetic field rotor and motor utilizing same
US20080048517A1 (en) * 2004-07-16 2008-02-28 Takayuki Ochiai Magnet Fixing Structure for Electric Rotary Machine
US20080093945A1 (en) * 2006-10-21 2008-04-24 Esw Gmbh Arrangement for fastening permanent magnets to rapidly rotating rotors of electric machines
JP2011041371A (en) * 2009-08-07 2011-02-24 Nishishiba Electric Co Ltd Rotor for permanent magnet type rotating electrical machine, and method of assembling the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61106049A (en) * 1984-10-25 1986-05-24 Yaskawa Electric Mfg Co Ltd Permanent magnet rotor of rotary electric machine
JP2004023864A (en) * 2002-06-14 2004-01-22 Meidensha Corp Rotor of permanent magnet rotary electric machine
JP2005354768A (en) * 2004-06-09 2005-12-22 Okuma Corp Surface magnet type magnetic field rotor and motor utilizing same
US20080048517A1 (en) * 2004-07-16 2008-02-28 Takayuki Ochiai Magnet Fixing Structure for Electric Rotary Machine
US20080093945A1 (en) * 2006-10-21 2008-04-24 Esw Gmbh Arrangement for fastening permanent magnets to rapidly rotating rotors of electric machines
JP2011041371A (en) * 2009-08-07 2011-02-24 Nishishiba Electric Co Ltd Rotor for permanent magnet type rotating electrical machine, and method of assembling the same

Also Published As

Publication number Publication date
GB201215532D0 (en) 2012-10-17
GB2505473A (en) 2014-03-05

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Legal Events

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

Effective date: 20190831