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GB2448191B - Linear actuator - Google Patents

Linear actuator

Info

Publication number
GB2448191B
GB2448191B GB0706830A GB0706830A GB2448191B GB 2448191 B GB2448191 B GB 2448191B GB 0706830 A GB0706830 A GB 0706830A GB 0706830 A GB0706830 A GB 0706830A GB 2448191 B GB2448191 B GB 2448191B
Authority
GB
United Kingdom
Prior art keywords
linear actuator
actuator
linear
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.)
Active
Application number
GB0706830A
Other versions
GB2448191A (en
GB0706830D0 (en
Inventor
Shinichiro Iwasaki
Adam Pride
Zi Qiang Zhu
Xuan Chen
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.)
IMRA Europe SAS
Original Assignee
IMRA Europe SAS
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 IMRA Europe SAS filed Critical IMRA Europe SAS
Priority to GB0706830A priority Critical patent/GB2448191B/en
Publication of GB0706830D0 publication Critical patent/GB0706830D0/en
Priority to JP2008085992A priority patent/JP5433963B2/en
Publication of GB2448191A publication Critical patent/GB2448191A/en
Application granted granted Critical
Publication of GB2448191B publication Critical patent/GB2448191B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/13—Electromagnets; Actuators including electromagnets with armatures characterised by pulling-force characteristics
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/081—Magnetic constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of 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
    • H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
    • H02K1/2733—Annular magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F2007/163—Armatures entering the winding with axial bearing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F2007/1692—Electromagnets or actuators with two coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1844—Monitoring or fail-safe circuits
    • H01F2007/185—Monitoring or fail-safe circuits with armature position measurement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electromagnets (AREA)
GB0706830A 2007-04-05 2007-04-05 Linear actuator Active GB2448191B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0706830A GB2448191B (en) 2007-04-05 2007-04-05 Linear actuator
JP2008085992A JP5433963B2 (en) 2007-04-05 2008-03-28 Linear actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0706830A GB2448191B (en) 2007-04-05 2007-04-05 Linear actuator

Publications (3)

Publication Number Publication Date
GB0706830D0 GB0706830D0 (en) 2007-05-16
GB2448191A GB2448191A (en) 2008-10-08
GB2448191B true GB2448191B (en) 2009-11-04

Family

ID=38091046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0706830A Active GB2448191B (en) 2007-04-05 2007-04-05 Linear actuator

Country Status (2)

Country Link
JP (1) JP5433963B2 (en)
GB (1) GB2448191B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463453B2 (en) * 2009-01-08 2014-04-09 多摩川精機株式会社 Trapezoidal magnet skew structure of cylindrical linear motor with core
GB2467363A (en) * 2009-01-30 2010-08-04 Imra Europ S A S Uk Res Ct A linear actuator
JP2010200522A (en) * 2009-02-26 2010-09-09 Aisin Seiki Co Ltd Reciprocation driving mechanism, and cold storage type refrigerator using the reciprocation driving mechanism and compressor
KR101275286B1 (en) * 2012-03-23 2013-06-17 충남대학교산학협력단 Linear vibration motor
JP6142568B2 (en) 2013-02-27 2017-06-07 アイシン精機株式会社 Transmission shift device
JP6186789B2 (en) 2013-03-25 2017-08-30 アイシン精機株式会社 Automatic transmission for automatic transmission for vehicle
JP6134237B2 (en) * 2013-09-09 2017-05-24 アズビル株式会社 Bistable moving device
JP2016111860A (en) * 2014-12-09 2016-06-20 アズビル株式会社 Reciprocation generator
CN204810107U (en) * 2015-07-08 2015-11-25 瑞声光电科技(常州)有限公司 Oscillating motor
CN105048761A (en) * 2015-08-28 2015-11-11 湘潭电机股份有限公司 Cylindrical permanent-magnet voice coil motor
IT201600103099A1 (en) * 2016-10-13 2018-04-13 System Di Rosati S R L ELECTROMAGNETIC LINEAR ACTUATOR.
CN106655697B (en) * 2016-11-30 2019-03-15 歌尔股份有限公司 A kind of linear vibration motor
ES2696226B2 (en) * 2018-06-14 2019-07-10 Univ Madrid Politecnica ELECTROMECHANICAL ACTUATOR AND ASSEMBLY OF ELECTROMECHANICAL ACTUATORS
CN110957884A (en) * 2019-12-24 2020-04-03 浙江省东阳市东磁诚基电子有限公司 Motor suitable for electric toothbrush and implementation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214724A (en) * 1988-01-28 1989-09-06 Custom Dev Ltd Permanent magnet electric motor
GB2295279A (en) * 1994-05-18 1996-05-22 Huntleigh Technology Plc Linesr magnetic actuator
US6039014A (en) * 1998-06-01 2000-03-21 Eaton Corporation System and method for regenerative electromagnetic engine valve actuation
US6043572A (en) * 1997-10-20 2000-03-28 Canon Kabushiki Kaisha Linear motor, stage device, and exposing device
US6104108A (en) * 1998-12-22 2000-08-15 Nikon Corporation Wedge magnet array for linear motor
US6313551B1 (en) * 2000-02-04 2001-11-06 Nikon Corporation Magnet array for a shaft-type linear motor
EP1158547A2 (en) * 2000-05-23 2001-11-28 Minebea Co., Ltd. Electromagnetic actuator and composite electro-magnetic actuator apparatus
US20060082753A1 (en) * 2004-10-19 2006-04-20 Asml Netherlands B.V. Actuator assembly and lithographic apparatus comprising such an actuator assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61106058A (en) * 1984-10-30 1986-05-24 Yaskawa Electric Mfg Co Ltd Ultrafine displacement linear electromagnetic actuator
JPS6244059A (en) * 1985-08-22 1987-02-26 Matsushita Electric Works Ltd Magnetic levitation type linear motor
JP3953735B2 (en) * 1997-10-04 2007-08-08 ズィー・アンド・ディー・リミテッド Linear motor compressor
JPH11351322A (en) * 1998-06-05 1999-12-24 Tokai Rubber Ind Ltd Exciter for active damping
JP2002112519A (en) * 2000-09-29 2002-04-12 Hitachi Metals Ltd Electromagnetially reciprocating driver
JP2002325421A (en) * 2001-02-23 2002-11-08 Canon Inc Linear motor, stage apparatus using the same aligner, and device manufacturing method
JP3658560B2 (en) * 2001-12-26 2005-06-08 東芝機械株式会社 Inner yoke magnet type linear motor
JP4310611B2 (en) * 2002-06-06 2009-08-12 株式会社安川電機 Permanent magnet motor
JP4273738B2 (en) * 2002-10-16 2009-06-03 パナソニック株式会社 Linear compressor
US6914351B2 (en) * 2003-07-02 2005-07-05 Tiax Llc Linear electrical machine for electric power generation or motive drive
JP2005245047A (en) * 2004-02-24 2005-09-08 Nippon Pulse Motor Co Ltd Linear actuator
JP2006296127A (en) * 2005-04-13 2006-10-26 Alps Electric Co Ltd Electromagnetic actuator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214724A (en) * 1988-01-28 1989-09-06 Custom Dev Ltd Permanent magnet electric motor
GB2295279A (en) * 1994-05-18 1996-05-22 Huntleigh Technology Plc Linesr magnetic actuator
US6043572A (en) * 1997-10-20 2000-03-28 Canon Kabushiki Kaisha Linear motor, stage device, and exposing device
US6039014A (en) * 1998-06-01 2000-03-21 Eaton Corporation System and method for regenerative electromagnetic engine valve actuation
US6104108A (en) * 1998-12-22 2000-08-15 Nikon Corporation Wedge magnet array for linear motor
US6313551B1 (en) * 2000-02-04 2001-11-06 Nikon Corporation Magnet array for a shaft-type linear motor
EP1158547A2 (en) * 2000-05-23 2001-11-28 Minebea Co., Ltd. Electromagnetic actuator and composite electro-magnetic actuator apparatus
US20060082753A1 (en) * 2004-10-19 2006-04-20 Asml Netherlands B.V. Actuator assembly and lithographic apparatus comprising such an actuator assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE Transactions on Magnetics, Vol.40, No.4, July 2004, S M Jang et al, "Analysis and experimental verification of moving-magnet linear actuator with cylindrical Halbach Array", pages 2068 - 2070. *
W-J Kim et al, "IEEE Industry Applications Conference IAC", October 1996, pages 471 - 478, Vol.1, Meeting 31, "Analysis and implementation of a tubular motor with Halbach magnet array" *

Also Published As

Publication number Publication date
JP5433963B2 (en) 2014-03-05
GB2448191A (en) 2008-10-08
GB0706830D0 (en) 2007-05-16
JP2008259413A (en) 2008-10-23

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20150618