WO2009057981A3 - Coreless motor - Google Patents

Coreless motor Download PDF

Info

Publication number
WO2009057981A3
WO2009057981A3 PCT/KR2008/006465 KR2008006465W WO2009057981A3 WO 2009057981 A3 WO2009057981 A3 WO 2009057981A3 KR 2008006465 W KR2008006465 W KR 2008006465W WO 2009057981 A3 WO2009057981 A3 WO 2009057981A3
Authority
WO
WIPO (PCT)
Prior art keywords
stator
coreless motor
cylindrical form
outside
fitted
Prior art date
Application number
PCT/KR2008/006465
Other languages
French (fr)
Other versions
WO2009057981A2 (en
Inventor
Sang-Ku Choi
Cheol-Hoon Park
Dong-Won Yun
Sang-Yong Ham
Original Assignee
Korea Mach & Materials Inst
Sang-Ku Choi
Cheol-Hoon Park
Dong-Won Yun
Sang-Yong Ham
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 Korea Mach & Materials Inst, Sang-Ku Choi, Cheol-Hoon Park, Dong-Won Yun, Sang-Yong Ham filed Critical Korea Mach & Materials Inst
Publication of WO2009057981A2 publication Critical patent/WO2009057981A2/en
Publication of WO2009057981A3 publication Critical patent/WO2009057981A3/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more 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
    • H02K1/27—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
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2791—Surface mounted magnets; Inset magnets
    • H02K1/2792—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
    • 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
    • H02K3/47—Air-gap windings, i.e. iron-free windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

A coreless motor is disclosed, including a stator of a cylindrical form, being fixed in a housing and equipped with a coil, and a rotor rotated as fitted with the an inside or an outside of the stator. The rotor includes an inner magnet having a cylindrical form inserted in an inside of the stator, and an outer magnet having a cylindrical form fitted around an outside of the stator.
PCT/KR2008/006465 2007-11-02 2008-11-03 Coreless motor WO2009057981A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2007-0111646 2007-11-02
KR1020070111646A KR20090045699A (en) 2007-11-02 2007-11-02 High speed coreless motor

Publications (2)

Publication Number Publication Date
WO2009057981A2 WO2009057981A2 (en) 2009-05-07
WO2009057981A3 true WO2009057981A3 (en) 2009-06-18

Family

ID=40591673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/006465 WO2009057981A2 (en) 2007-11-02 2008-11-03 Coreless motor

Country Status (2)

Country Link
KR (1) KR20090045699A (en)
WO (1) WO2009057981A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101572454B (en) * 2009-06-05 2011-12-14 北京前沿科学研究所 Closed magnetic circuit rotor for permanent magnet generator
DE102011005713A1 (en) * 2011-03-17 2012-09-20 Siemens Aktiengesellschaft Rotor for an electric machine and electric machine
JP2014192942A (en) * 2013-03-26 2014-10-06 Atec Corp Rotary machine
CN107134908B (en) * 2017-02-20 2019-02-26 北方工业大学 Magnetic driving device
KR102242638B1 (en) * 2019-07-29 2021-04-20 한양대학교 산학협력단 Rotor for maximizing air-gap magnetic flux in slotless motor and slotless motor including the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731554A (en) * 1985-11-14 1988-03-15 Allied Corporation Low profile ring-shaped motor
JPH08242564A (en) * 1995-03-01 1996-09-17 Sawafuji Electric Co Ltd Binder structure of rotary electric machine
JP2004312923A (en) * 2003-04-09 2004-11-04 Crd Kk Small-sized motor and method for manufacturing stator of small-sized motor
JP2006187116A (en) * 2004-12-27 2006-07-13 Denso Corp Electric wheel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731554A (en) * 1985-11-14 1988-03-15 Allied Corporation Low profile ring-shaped motor
JPH08242564A (en) * 1995-03-01 1996-09-17 Sawafuji Electric Co Ltd Binder structure of rotary electric machine
JP2004312923A (en) * 2003-04-09 2004-11-04 Crd Kk Small-sized motor and method for manufacturing stator of small-sized motor
JP2006187116A (en) * 2004-12-27 2006-07-13 Denso Corp Electric wheel

Also Published As

Publication number Publication date
KR20090045699A (en) 2009-05-08
WO2009057981A2 (en) 2009-05-07

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