WO2009047455A3 - Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs - Google Patents

Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs Download PDF

Info

Publication number
WO2009047455A3
WO2009047455A3 PCT/FR2008/051678 FR2008051678W WO2009047455A3 WO 2009047455 A3 WO2009047455 A3 WO 2009047455A3 FR 2008051678 W FR2008051678 W FR 2008051678W WO 2009047455 A3 WO2009047455 A3 WO 2009047455A3
Authority
WO
WIPO (PCT)
Prior art keywords
covering
magnets
magnetic
magnetic structure
magnet
Prior art date
Application number
PCT/FR2008/051678
Other languages
English (en)
Other versions
WO2009047455A2 (fr
Inventor
Guy Lemarquand
Benoit Merit
Original Assignee
Orkidia Audio
Univ Maine
Guy Lemarquand
Benoit Merit
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 Orkidia Audio, Univ Maine, Guy Lemarquand, Benoit Merit filed Critical Orkidia Audio
Priority to US12/300,883 priority Critical patent/US8055010B2/en
Priority to EP08836843.6A priority patent/EP2204048B1/fr
Priority to CA2700031A priority patent/CA2700031C/fr
Priority to AU2008309455A priority patent/AU2008309455B2/en
Priority to JP2010525406A priority patent/JP5535917B2/ja
Priority to CN200880112019A priority patent/CN101828408A/zh
Publication of WO2009047455A2 publication Critical patent/WO2009047455A2/fr
Publication of WO2009047455A3 publication Critical patent/WO2009047455A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

L'invention concerne une structure magnétique (5, 5', 5",10) génératrice de champ magnétique pour moteur sans fer de haut- parleu r (1) électrodynamique à bobine (2) mobile, la structure magnétique générant un champ magnétique dans un entrefer dans lequel est disposée la bobine, ladite structure magnétique étant formée de l'empilement de trois aimants correspondant à un aimant intermédiaire (8, 8', 8") et deux aimants de recouvrement haut et bas (7, 9) (7', 9') (7",9") (11,12), lesdits aimants formant une bordure d'entrefer droite et étant accolés, l'aimant intermédiaire ayant une polarisation magnétique radiale, les aimants de recouvrement ayant mêmes polarisations magnétiques et aimantations rémanentes. Selon l'invention, les aimants de recouvrement ont une polarisation magnétique radiale (7,9) (7',9') (7",9") ou axiale (11,12) et lorsque la polarisation magnétique des aimants de recouvrement est radiale, l'aimantation rémanente de chaque aimant de recouvrement est supérieure à l'aimantation rémanente de l'aimant intermédiaire, et lorsque la polarisation magnétique des aimants de recouvrement est axiale, l'aimantation rémanente de chaque aimant de recouvrement est inférieure à l 'aimantation rémanente de l 'aimant intermédiaire. Des moteurs sont présentés.
PCT/FR2008/051678 2007-09-18 2008-09-18 Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs WO2009047455A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US12/300,883 US8055010B2 (en) 2007-09-18 2008-09-18 Magnetic structure for an ironless electrodynamic-loudspeaker motor, motors and loudspeakers
EP08836843.6A EP2204048B1 (fr) 2007-09-18 2008-09-18 Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs
CA2700031A CA2700031C (fr) 2007-09-18 2008-09-18 Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs
AU2008309455A AU2008309455B2 (en) 2007-09-18 2008-09-18 Magnetic structure for the iron-free motor of electrodynamic loudspeaker, motors and loudspeakers
JP2010525406A JP5535917B2 (ja) 2007-09-18 2008-09-18 無鉄（アイアンレス）のダイナミックスピーカのモータ用の磁気構造体、モータおよびダイナミックスピーカ
CN200880112019A CN101828408A (zh) 2007-09-18 2008-09-18 用于无铁电动扬声器电动机的磁结构、电动机和扬声器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0757657 2007-09-18
FR0757657A FR2921224B1 (fr) 2007-09-18 2007-09-18 Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs

Publications (2)

Publication Number Publication Date
WO2009047455A2 WO2009047455A2 (fr) 2009-04-16
WO2009047455A3 true WO2009047455A3 (fr) 2009-06-11

Family

ID=39204571

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/051678 WO2009047455A2 (fr) 2007-09-18 2008-09-18 Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs

Country Status (8)

Country Link
US (1) US8055010B2 (fr)
EP (1) EP2204048B1 (fr)
JP (1) JP5535917B2 (fr)
CN (1) CN101828408A (fr)
AU (1) AU2008309455B2 (fr)
CA (1) CA2700031C (fr)
FR (1) FR2921224B1 (fr)
WO (1) WO2009047455A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8309685B2 (en) 2007-12-21 2012-11-13 Celgene Avilomics Research, Inc. HCV protease inhibitors and uses thereof
FR2960738B1 (fr) * 2010-05-28 2015-09-25 Focal Jmlab Haut-parleur acoustique
WO2014090346A1 (fr) * 2012-12-12 2014-06-19 Blaupunkt Embedded Systems Gmbh Système magnétique pour un haut-parleur, dispositif de magnétisation, procédé pour la fabrication d'un système magnétique et d'un haut-parleur
DE102013205169A1 (de) * 2013-03-22 2014-09-25 Sennheiser Electronic Gmbh & Co. Kg Elektrodynamischer Schallwandler
WO2019134162A1 (fr) 2018-01-08 2019-07-11 深圳市韶音科技有限公司 Haut-parleur à conduction osseuse
US10848874B2 (en) * 2018-02-20 2020-11-24 Google Llc Panel audio loudspeaker electromagnetic actuator
US10841704B2 (en) 2018-04-06 2020-11-17 Google Llc Distributed mode loudspeaker electromagnetic actuator with axially and radially magnetized circuit
DK180111B1 (en) 2018-10-04 2020-05-06 Upper Level Aps A magnetic system for an electromechanical transducer
CN111614226A (zh) * 2020-06-24 2020-09-01 雅科贝思精密机电(南通)有限公司 一种可变刚性的磁性重力补偿器的音圈电机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173968A (ja) * 1986-01-28 1987-07-30 Sumitomo Special Metals Co Ltd ボイスコイルモ−タ
JPH1023591A (ja) * 1996-07-01 1998-01-23 Kenwood Corp スピーカ
EP1553802A2 (fr) * 2004-01-06 2005-07-13 Sony Corporation Circuit magnétique et haut-parleur
US20060182303A1 (en) * 2002-02-05 2006-08-17 Trandafir Roland P Microphone assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142260A (en) * 1991-03-08 1992-08-25 Harman International Industries, Incorporated Transducer motor assembly
US5815587A (en) * 1993-05-10 1998-09-29 Scan-Speak A/S Loudspeaker with short circuit rings at the voice coil
KR950024611A (ko) * 1994-01-05 1995-08-21 구쯔자와 겐따로우 자기회로를 구비한 스피커
US6151402A (en) * 1995-09-02 2000-11-21 New Transducers Limited Vibration transducers
US6768806B1 (en) * 1998-03-19 2004-07-27 Harman International Industries, Incorporated Shorting rings in dual-coil dual-gap loudspeaker drivers
JP4433345B2 (ja) * 1999-12-16 2010-03-17 日立金属株式会社 リング磁石およびスピーカ
US6996247B2 (en) * 2002-11-05 2006-02-07 Step Technologies, Inc. Push-push multiple magnetic air gap transducer
FR2892886B1 (fr) * 2005-11-03 2008-01-25 Bernard Richoux Transducteur electrodynamique, applications aux haut-parleurs et geophones

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62173968A (ja) * 1986-01-28 1987-07-30 Sumitomo Special Metals Co Ltd ボイスコイルモ−タ
JPH1023591A (ja) * 1996-07-01 1998-01-23 Kenwood Corp スピーカ
US20060182303A1 (en) * 2002-02-05 2006-08-17 Trandafir Roland P Microphone assembly
EP1553802A2 (fr) * 2004-01-06 2005-07-13 Sony Corporation Circuit magnétique et haut-parleur

Also Published As

Publication number Publication date
EP2204048B1 (fr) 2015-07-22
FR2921224B1 (fr) 2009-12-04
JP2010539883A (ja) 2010-12-16
EP2204048A2 (fr) 2010-07-07
AU2008309455B2 (en) 2013-05-30
FR2921224A1 (fr) 2009-03-20
JP5535917B2 (ja) 2014-07-02
CA2700031A1 (fr) 2009-04-16
AU2008309455A1 (en) 2009-04-16
WO2009047455A2 (fr) 2009-04-16
CA2700031C (fr) 2017-05-02
CN101828408A (zh) 2010-09-08
US20100172534A1 (en) 2010-07-08
US8055010B2 (en) 2011-11-08

Similar Documents

Publication Publication Date Title
WO2009047455A3 (fr) Structure magnetique pour moteur sans fer de haut-parleur electrodynamique, moteurs et haut-parleurs
US9609420B2 (en) Earphones with left/right magnetic asymmetry
KR100651766B1 (ko) 듀얼 마그넷을 구비한 자기회로 및 이를 이용한 스피커와진동발생장치
EP2871856B1 (fr) Transducteur à aimant mobile à double bobine
US9294843B2 (en) Multimedia acoustics system having audio frequency digital interface
EP3041263B1 (fr) Module récepteur hybride
MX2010001971A (es) Hoja de vidrio silico-sosa-calcico.
JP2007306735A (ja) 永久磁石モータ
EP1418792A3 (fr) Transducteur à entrefers magnétiques multiples en push-push
JP2013118801A (ja) ロータ及びモータ
US8428297B2 (en) Acoustic transducer
WO2012101083A3 (fr) Machine synchrone à aimants permanents munie d'un rotor
WO2005124967A8 (fr) Machine electrique du type a flux axial
CN102752697A (zh) 多磁路***的扬声器
JP2010081776A (ja) 同期電動機の回転子及び同期電動機の回転子の製造方法
AU2003222377A1 (en) Moving-coil electrodynamic motor particularly for a loudspeaker, loudspeaker and corresponding pole piece
WO2010052439A3 (fr) Machine electrique tournante a double excitation de type homopolaire
US8705789B2 (en) Magnet-less loudspeaker
JP2006340430A (ja) ブラシレスモータの着磁装置および着磁方法
Merit et al. In pursuit of increasingly linear loudspeaker motors
JP2003339098A (ja) スピーカ
JP7225504B2 (ja) 偏平型ボイスコイルモータ
CN107995569B (zh) 一种多磁式扬声器驱动结构及多磁式扬声器
CN111479200A (zh) 平面动磁式扬声单体
JP2010239594A (ja) スピーカー用磁気回路およびこれを用いたスピーカー

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880112019.8

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 12300883

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08836843

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2700031

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2010525406

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2008836843

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008309455

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2008309455

Country of ref document: AU

Date of ref document: 20080918

Kind code of ref document: A