EP1207716B1 - Formteil zur Halterung eines Exciters für einen Flachmembranlautsprecher - Google Patents

Formteil zur Halterung eines Exciters für einen Flachmembranlautsprecher Download PDF

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Publication number
EP1207716B1
EP1207716B1 EP01125046A EP01125046A EP1207716B1 EP 1207716 B1 EP1207716 B1 EP 1207716B1 EP 01125046 A EP01125046 A EP 01125046A EP 01125046 A EP01125046 A EP 01125046A EP 1207716 B1 EP1207716 B1 EP 1207716B1
Authority
EP
European Patent Office
Prior art keywords
ring
outside
moulding according
jacket
bridge
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
EP01125046A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1207716A3 (de
EP1207716A2 (de
Inventor
Rolf Janke
Michael Hein
Wilfried Werner
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7661226&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1207716(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Publication of EP1207716A2 publication Critical patent/EP1207716A2/de
Publication of EP1207716A3 publication Critical patent/EP1207716A3/de
Application granted granted Critical
Publication of EP1207716B1 publication Critical patent/EP1207716B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia
    • 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
    • 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
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Definitions

  • the invention relates to a molding according to the preamble of the main claim for holding an exciter, consisting of a sound-emitting membrane and an exciter, which has a coil and at least one magnetic system, as it is known from WO 98 34320 A2 is known.
  • an exciter consisting of a sound-emitting membrane and an exciter, which has a coil and at least one magnetic system, as it is known from WO 98 34320 A2 is known.
  • a current-carrying conductor In electro-dynamic speakers, the deflection of a current-carrying conductor is used in a magnetic field to move a sound-emitting membrane.
  • a permanent magnet In this case, a permanent magnet is provided with an annular air gap in which a coil oscillates.
  • the coil is now firmly attached to the sound-emitting surface, e.g. glued over a molding, and the mass of the now moving relative to the coil magnet system used to set the sound-emitting surface in vibration.
  • an air gap is currently chosen so large that no mechanical contact is possible.
  • the invention has therefore set itself the task of avoiding the wobble by a vibration of the transmission to the magnetic coil unit damping as possible suspension is created.
  • a first region of the molded part which serves as an adhesive flange for connection to the sound surface, for example a flat loudspeaker panel, with an outer ring provided for locking one or more magnet systems.
  • This outer ring is coupled in the selected embodiment arranged in two planes, not straight, but curved, thin bridge bridges coupled by their distributed over the radius arrangement between the rings and on the other their spacing in more than a distance from the sound surface provide for a cylindrical guidance of the magnet system, so that wobble vibrations are not transmitted to the voice coils.
  • the assembly of the molding and the magnet system can be further simplified in that slots for receiving solder lugs or solder pins on the Receiving ring for receiving the magnet system can be provided.
  • molding consists essentially of two rings 10, 16, the inner ring 10, which has an adhesive flange for connection to the sound-emitting membrane at the in the figure rearwardly facing inwardly projecting annular surface 12, and which is provided for receiving the voice coil, and the outer ring 16, which consists essentially only of a short cylinder jacket surface, and is provided with lugs 18, 20 on its inner side, which carry the magnet system.
  • the webs 22 each extend in a plane parallel to the oscillating surface, so that the magnet system can use its flexibility perpendicular to this plane to its own movement and the excitation of the oscillating surface. You can, as in the figure, all in the same direction (clockwise outward in the figure) or in such a way that the webs of a group are aligned in opposite directions to those of the other group.
  • vents 14 In its inner circumference to the - front in the figure, facing away from the sound membrane - side of the inner ring also has ventilation openings 14 which open to lying laterally adjacent to the adhesive flange areas of the sound surface. These vents 14 cool the coil, which is otherwise surrounded by the magnet system.
  • each bridges bridge 22 is each two parallel spaced in two planes from the sound surface.
  • the bridge bridges 22 are distributed in two groups each of turn three groups of two over the circumference, and the two groups are arranged at two different distances from the sound-emitting membrane, the provision of any number of distances is conceivable, and limited only by the manufacturing process.
  • the molded part can also be produced in 3D lithography, or laser-cut from a glass fiber-reinforced plastic.
  • a single bridging web 22 has a curved shape of at least two oppositely directed bends out of the straight extension, stiffer materials can also be used if longer webs are provided.
  • the connection of a web 22 with the inner ring 10 and / or the outer ring 16 should be at an angle of less than 45 ° to the radius, ie initially approximately at right angles with respect to the web width enlarged cross-section to the vibration forces, which later also during operation Exciters arise to resist especially good.
  • a damping disk 26 is highlighted hatched within the inner ring, which centers the necessary for damping the vibration surface portion located within the adhesive surface 12 mass as in the drawing but possibly also azentrisch at the desired location.
  • This mass 26 can be glued, but can also be held only by the holding them webs in place. Additional felt material can be placed between them and the oscillating surface, or additional weights can be used on the back in special fits - not shown - fits.
  • the assembly of the molded part and the magnet system can be further simplified in that slots 24 are provided for receiving solder lugs or solder pins on the outer ring 16 for receiving such prefabricated with the magnetic system elements.
  • further eyelets for holding, for example, spiral spring elements can be provided, which additionally hold the magnet system against the membrane, and which also have a positive influence on the mechanical stress on the bridge webs 22.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP01125046A 2000-10-26 2001-10-20 Formteil zur Halterung eines Exciters für einen Flachmembranlautsprecher Expired - Lifetime EP1207716B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10053252A DE10053252C2 (de) 2000-10-26 2000-10-26 Formteil zur Halterung eines Exciters für einen Flachmembranlautsprecher
DE10053252 2000-10-26

Publications (3)

Publication Number Publication Date
EP1207716A2 EP1207716A2 (de) 2002-05-22
EP1207716A3 EP1207716A3 (de) 2006-10-18
EP1207716B1 true EP1207716B1 (de) 2011-07-06

Family

ID=7661226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125046A Expired - Lifetime EP1207716B1 (de) 2000-10-26 2001-10-20 Formteil zur Halterung eines Exciters für einen Flachmembranlautsprecher

Country Status (4)

Country Link
EP (1) EP1207716B1 (es)
AT (1) ATE515894T1 (es)
DE (1) DE10053252C2 (es)
ES (1) ES2369197T3 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001215B3 (de) * 2004-01-06 2005-04-21 Elac Electroacustic Gmbh Wechselrahmen zur Halterung eines Exciters
DE102006031433B4 (de) * 2006-07-05 2011-06-22 ELAC Electroacustic GmbH, 24113 Exciter für Flächenmembranlautsprecher
WO2009086925A1 (de) 2008-01-04 2009-07-16 Airbus Operations Gmbh Schwingerreger für einen flachlautsprecher, flachlautsprecher und fahrzeug
RU2456764C2 (ru) * 2008-01-04 2012-07-20 Эйрбас Оперэйшнз Гмбх Осциллятор для плоского громкоговорителя, плоский громкоговоритель и транспортное средство, оснащенное таким громкоговорителем
DE202010006188U1 (de) * 2010-04-28 2011-03-03 Elac Electroacustic Gmbh Lautsprecher mit Aktuator und Dichtmembran
US11622199B2 (en) * 2020-11-09 2023-04-04 Glass Acoustic Innovations Technology Co., Ltd. Flat diaphragm speaker

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034320A2 (en) * 1997-01-31 1998-08-06 New Transducers Limited Electro-dynamic inertial vibration exciter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235302A (en) * 1977-03-15 1980-11-25 Kenkichi Tsukamoto Loudspeaker
US5734132A (en) * 1996-07-19 1998-03-31 Proni; Lucio Concentric tube suspension system for loudspeakers
DE60003118T2 (de) * 1999-03-03 2004-04-08 Nec Tokin Corp., Sendai Schwingungserreger mit magnetischer schaltung durch einen dämpfer mit erhöhter nachgiebigkeit elastisch befestigt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998034320A2 (en) * 1997-01-31 1998-08-06 New Transducers Limited Electro-dynamic inertial vibration exciter

Also Published As

Publication number Publication date
DE10053252A1 (de) 2002-03-14
ES2369197T3 (es) 2011-11-28
EP1207716A3 (de) 2006-10-18
EP1207716A2 (de) 2002-05-22
ATE515894T1 (de) 2011-07-15
DE10053252C2 (de) 2002-10-10

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