WO2012080912A3 - Amplificateur audio - Google Patents

Amplificateur audio Download PDF

Info

Publication number
WO2012080912A3
WO2012080912A3 PCT/IB2011/055545 IB2011055545W WO2012080912A3 WO 2012080912 A3 WO2012080912 A3 WO 2012080912A3 IB 2011055545 W IB2011055545 W IB 2011055545W WO 2012080912 A3 WO2012080912 A3 WO 2012080912A3
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
audio driver
periphery
magnetic field
low frequency
Prior art date
Application number
PCT/IB2011/055545
Other languages
English (en)
Other versions
WO2012080912A2 (fr
Inventor
Frederick Jwee Koon Kwek
Peng Gao
Goh Kong San Gozali
Original Assignee
Tp Vision Holding B.V.
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 Tp Vision Holding B.V. filed Critical Tp Vision Holding B.V.
Publication of WO2012080912A2 publication Critical patent/WO2012080912A2/fr
Publication of WO2012080912A3 publication Critical patent/WO2012080912A3/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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/021—Diaphragms comprising cellulose-like materials, e.g. wood, paper, linen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

La présente invention concerne un amplificateur audio qui comprend un diaphragme (201) pour faire rayonner un son, et un aimant (205) agencé pour générer un champ magnétique le long d'au moins une partie d'une périphérie du diaphragme (201). Une bobine acoustique (203) est montée de façon fixe sur le diaphragme (201) et disposée le long d'au moins une partie d'une périphérie du diaphragme (201) et dans le champ magnétique. De préférence, l'amplificateur audio comprend une structure de montage (207, 209) et un périphérique flexible (211, 213) pour fixer le diaphragme (201) à la structure de montage (207, 209) de façon mobile. L'amplificateur audio utilise un agencement grâce auquel le diaphragme (201) est déplacé à la périphérie plutôt qu'au centre. Cette approche permet un fonctionnement à basse fréquence efficace tout en permettant à l'amplificateur audio de posséder des dimensions réduites. En particulier, une conception plate d'amplificateur audio peut être obtenue même pour des amplificateurs à basse fréquence.
PCT/IB2011/055545 2010-12-15 2011-12-08 Amplificateur audio WO2012080912A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10195159 2010-12-15
EP10195159.8 2010-12-15

Publications (2)

Publication Number Publication Date
WO2012080912A2 WO2012080912A2 (fr) 2012-06-21
WO2012080912A3 true WO2012080912A3 (fr) 2012-11-15

Family

ID=45446120

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/055545 WO2012080912A2 (fr) 2010-12-15 2011-12-08 Amplificateur audio

Country Status (1)

Country Link
WO (1) WO2012080912A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014504108A (ja) 2010-12-23 2014-02-13 ニーデルマン，ポール 薄型スピーカー

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979566A (en) * 1973-12-12 1976-09-07 Erazm Alfred Willy Electromagnetic transducer
US20040213431A1 (en) * 2003-04-25 2004-10-28 Mello William Bernard Electromagnetic audio transducer and or audio speaker
EP1553802A2 (fr) * 2004-01-06 2005-07-13 Sony Corporation Circuit magnétique et haut-parleur
WO2009063557A1 (fr) * 2007-11-14 2009-05-22 Pioneer Corporation Dispositif de haut-parleur
US20100060395A1 (en) * 2008-09-08 2010-03-11 Eugen Nedelcu Free Air Magnetic Circuit and Speaker
WO2011148109A1 (fr) * 2010-05-28 2011-12-01 Focal Jmlab Haut-parleur acoustique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979566A (en) * 1973-12-12 1976-09-07 Erazm Alfred Willy Electromagnetic transducer
US20040213431A1 (en) * 2003-04-25 2004-10-28 Mello William Bernard Electromagnetic audio transducer and or audio speaker
EP1553802A2 (fr) * 2004-01-06 2005-07-13 Sony Corporation Circuit magnétique et haut-parleur
WO2009063557A1 (fr) * 2007-11-14 2009-05-22 Pioneer Corporation Dispositif de haut-parleur
US20100060395A1 (en) * 2008-09-08 2010-03-11 Eugen Nedelcu Free Air Magnetic Circuit and Speaker
WO2011148109A1 (fr) * 2010-05-28 2011-12-01 Focal Jmlab Haut-parleur acoustique

Also Published As

Publication number Publication date
WO2012080912A2 (fr) 2012-06-21

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