ES2105030T3 - Sistema de iman para un altavoz de construccion aligerada. - Google Patents

Sistema de iman para un altavoz de construccion aligerada.

Info

Publication number
ES2105030T3
ES2105030T3 ES93115768T ES93115768T ES2105030T3 ES 2105030 T3 ES2105030 T3 ES 2105030T3 ES 93115768 T ES93115768 T ES 93115768T ES 93115768 T ES93115768 T ES 93115768T ES 2105030 T3 ES2105030 T3 ES 2105030T3
Authority
ES
Spain
Prior art keywords
magnetic
systems
neodym
nucleus
magnetic system
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 - Lifetime
Application number
ES93115768T
Other languages
English (en)
Inventor
Jorg Prokisch
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.)
Nokia Technology GmbH
Original Assignee
Nokia Technology GmbH
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 Nokia Technology GmbH filed Critical Nokia Technology GmbH
Application granted granted Critical
Publication of ES2105030T3 publication Critical patent/ES2105030T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

SEGUN EL ESTADO DE LA TECNICA ES CONOCIDO, FORMAR LOS ALTAVOCES CONICOS, LOS CUALES SON APROPIADOS PARA LA REPRODUCCION DE SEÑALES ACUSTICAS DE CARRERA LARGA O DE BANDA ANCHA, CON SISTEMAS MAGNETICOS (10), QUE TIENEN UN IMAN PERMANENTE (12) EN FORMA DE ANILLO CILINDRICO Y COMPUESTO DE FERRITA. PARA DISPONER DE LA INDUCCION NECESARIA PARA ESTE SISTEMA MAGNETICO (10) EN EL ENTREHIERRO (20) ES NECESARIO DISEÑAR EL IMAN PERMANENTE (12) DE GRANDES DIMENSIONES. ADEMAS ES CONOCIDO FORMAR LOS SISTEMAS MAGNETICOS DE CARRERA CORTA DE TAL MODO QUE EL NUCLEO POLAR SE FORME DE UN MATERIAL MAGNETICO ALTAMENTE ENERGETICO (= NEODYM). ESTE NUCLEO MAGNETICO ESTA COLOCADO CENTRADO EN UN TARRO MAGNETICO. ESTE SISTEMA MAGNETICO, EL CUAL EN COMPARACION CON LA CLASE DE SISTEMAS MAGNETICOS CONOCIDOS HASTA AHORA (10) A IGUALDAD DE POTENCIA SE PUEDEN HACER MUCHO MAS PEQUEÑOS Y MAS LIGEROS, NO SON TRANSFERIBLES A SISTEMAS MAGNETICOS (10) QUE SON APROPIADOS PARA LA TRANSMISION DE SEÑALES ACUSTICAS DE CARRERA LARGA O DE BANDA ANCHA, PUES UN NUCLEO POLAR DE NEODYM NO ESTA EN CONDICIONES DE PROPORCIONAR LA INDUCCION NECESARIA EN EL ENTREHIERRO PARA ESTE SISTEMA MAGNETICO (10). POR TANTO, DE ACUERDO CON LA INVENCION SE INDICA HACER UN SISTEMA MAGNETICO CONVENCIONAL (10) CON UN NUCLEO POLAR (13), EL CUAL ESTE FORMADO AL MENOS PARCIALMENTE DE MATERIAL NEODYM. MEDIANTE ESTA MEDIDA SERA POSIBLE CON IGUAL INDUCCION EN EL ENTREHIERRO (20) E IGUALES DIMENSIONES DEL ENTREHIERRO, REDUCIR EL PESO DEL SISTEMA MAGNETICO EN COMPARACION DE SISTEMAS MAGNETICOS CONVENCIONALES (10) EN POR LO MENOS UN 50 %.
ES93115768T 1992-10-09 1993-09-30 Sistema de iman para un altavoz de construccion aligerada. Expired - Lifetime ES2105030T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4234069A DE4234069A1 (de) 1992-10-09 1992-10-09 Konuslautsprecher in Leichtbauweise

Publications (1)

Publication Number Publication Date
ES2105030T3 true ES2105030T3 (es) 1997-10-16

Family

ID=6470077

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93115768T Expired - Lifetime ES2105030T3 (es) 1992-10-09 1993-09-30 Sistema de iman para un altavoz de construccion aligerada.

Country Status (6)

Country Link
US (1) US5402503A (es)
EP (1) EP0591837B1 (es)
JP (1) JPH06209498A (es)
DE (2) DE4234069A1 (es)
DK (1) DK0591837T3 (es)
ES (1) ES2105030T3 (es)

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JP3161673B2 (ja) * 1994-05-30 2001-04-25 松下電器産業株式会社 マイクロスピーカ用磁気回路ユニット及びその製造方法
US5802191A (en) * 1995-01-06 1998-09-01 Guenther; Godehard A. Loudspeakers, systems, and components thereof
WO1996033592A1 (en) * 1995-04-18 1996-10-24 Harman International Industries, Inc. Dual coil drive with multipurpose housing
DE19616794B4 (de) 1996-04-26 2005-09-29 Harman Audio Electronic Systems Gmbh Lautsprecher
US6289106B1 (en) 1997-08-08 2001-09-11 Hong Long Industrial Co., Ltd. Cap and center pole apparatus and method of coupling
JP2002530967A (ja) * 1998-11-13 2002-09-17 エイ グエンサー ゴードハード 希土類磁石ラウドスピーカーのための低コストのモーター設計
US8588457B2 (en) * 1999-08-13 2013-11-19 Dr. G Licensing, Llc Low cost motor design for rare-earth-magnet loudspeakers
AU6636700A (en) 1999-08-13 2001-03-13 Godehard A. Guenther Low cost broad range loudspeaker and system
EP1410682B1 (en) * 2000-06-27 2017-02-08 Dr. G Licensing, LLC Low profile speaker and system
US6611606B2 (en) * 2000-06-27 2003-08-26 Godehard A. Guenther Compact high performance speaker
US6993147B2 (en) * 2000-08-14 2006-01-31 Guenther Godehard A Low cost broad range loudspeaker and system
US6373957B1 (en) 2001-05-14 2002-04-16 Harman International Industries, Incorporated Loudspeaker structure
TW545838U (en) 2002-10-29 2003-08-01 Kingstate Electronics Corp Speaker with enhanced magnetic flux loop
JP3981926B2 (ja) * 2003-11-17 2007-09-26 ソニー株式会社 スピーカ装置
JP2005151253A (ja) * 2003-11-17 2005-06-09 Sony Corp スピーカ装置
JP3797561B2 (ja) * 2003-11-18 2006-07-19 ソニー株式会社 スピーカ装置
US20080247582A1 (en) * 2004-09-09 2008-10-09 Guenther Godehard A Loudspeaker and Systems
US8189840B2 (en) 2007-05-23 2012-05-29 Soundmatters International, Inc. Loudspeaker and electronic devices incorporating same
JP4952930B2 (ja) * 2007-08-07 2012-06-13 オンキヨー株式会社 動電型スピーカー
US8891809B2 (en) 2010-08-25 2014-11-18 Harman International Industries, Inc. Split magnet loudspeaker
TWM409666U (en) * 2011-03-21 2011-08-11 Tuo-Teng Huang Loudspeaker
US8879774B2 (en) * 2011-04-12 2014-11-04 Harman International Industries, Incorporated Loudspeaker magnet assembly with two inner magnets comprising a central bore
US8855356B1 (en) * 2012-12-18 2014-10-07 Skullcandy, Inc. Dual ring magnet apparatus
KR101374025B1 (ko) * 2013-01-29 2014-03-12 양철훈 평면파를 재현하는 스피커
FR3026866B1 (fr) * 2014-10-02 2019-09-06 Dav Dispositif et procede de commande pour vehicule automobile
US11184712B2 (en) 2015-05-19 2021-11-23 Bose Corporation Dual-field single-voice-coil transducer
CN109831727A (zh) * 2018-12-29 2019-05-31 瑞声科技(新加坡)有限公司 发声器件
WO2020173699A1 (en) * 2019-02-28 2020-09-03 Purifi Aps Loudspeaker motor with improved linearity
US11245986B2 (en) 2019-10-24 2022-02-08 Bose Corporation Electro-magnetic motor geometry with radial ring and axial pole magnet
TWI819515B (zh) * 2022-03-09 2023-10-21 緯創資通股份有限公司 揚聲器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB499830A (en) * 1936-08-06 1939-01-30 Bosch Robert Improvements in or relating to loud-speaker magnet assemblies
BE488180A (es) * 1948-10-21
FR1096422A (fr) * 1953-12-08 1955-06-21 Perfectionnement dans la construction des aimants permanents
DE2900427B1 (de) * 1979-01-08 1979-08-02 Licentia Gmbh Dynamischer Wandler mit einer Schwingspule in einem mit einer magnetischen Fluessigkeit gefuellten Luftspalt
DE2936965C2 (de) * 1979-09-13 1982-04-01 Standard Elektrik Lorenz Ag, 7000 Stuttgart Permanentdynamische elektroakustische Wandlerkapsel
JPS5657398A (en) * 1979-10-17 1981-05-19 Pioneer Electronic Corp Magnetic circuit
US5033093A (en) * 1990-01-17 1991-07-16 Peavey Electronics Corporation Compact microphone and method of manufacture
JPS5931111Y2 (ja) * 1980-07-19 1984-09-04 パイオニア株式会社 ダイナミツクマイクロホン
DE3339720A1 (de) * 1983-11-03 1985-05-15 Magnetfabrik Bonn Gmbh Vorm. Gewerkschaft Windhorst, 5300 Bonn Streuarmes topfmagnetsystem fuer magnet-dynamische lautsprecher bzw. akustische wandler
DE3638693A1 (de) * 1985-11-15 1987-05-21 Bose Corp Kompakter elektro-akustischer uebertrager
US4737992A (en) * 1985-11-15 1988-04-12 Bose Corporation Compact electroacoustical transducer with spider covering rear basket opening
GB8810943D0 (en) * 1988-05-09 1988-06-15 Kef Electronics Ltd Loudspeaker
EP0574387A1 (en) * 1990-10-09 1993-12-22 Stage Ac-Company B.V. Electrodynamic loudspeaker with cooling arrangement

Also Published As

Publication number Publication date
JPH06209498A (ja) 1994-07-26
DE4234069A1 (de) 1994-04-14
DE59306579D1 (de) 1997-07-03
DK0591837T3 (da) 1997-09-08
EP0591837B1 (de) 1997-05-28
EP0591837A1 (de) 1994-04-13
US5402503A (en) 1995-03-28

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