EP1052879A3 - Flat element - Google Patents

Flat element Download PDF

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Publication number
EP1052879A3
EP1052879A3 EP00110008A EP00110008A EP1052879A3 EP 1052879 A3 EP1052879 A3 EP 1052879A3 EP 00110008 A EP00110008 A EP 00110008A EP 00110008 A EP00110008 A EP 00110008A EP 1052879 A3 EP1052879 A3 EP 1052879A3
Authority
EP
European Patent Office
Prior art keywords
surface element
plate
shaped component
function
transducer
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.)
Withdrawn
Application number
EP00110008A
Other languages
German (de)
French (fr)
Other versions
EP1052879A2 (en
Inventor
Wolfgang Prof. Dr. Bachmann
Gerhard Dr. Krump
Hans-Jürgen Dipl.-Phys. Regl
Andreas Dipl.-Ing. Ziganki
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Audio Electronic Systems 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 Harman Audio Electronic Systems GmbH filed Critical Harman Audio Electronic Systems GmbH
Publication of EP1052879A2 publication Critical patent/EP1052879A2/en
Publication of EP1052879A3 publication Critical patent/EP1052879A3/en
Withdrawn legal-status Critical Current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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Die Erfindung betrifft ein Flächenelement mit der Funktion eines Flachlautsprechers. Das Flächenelement zeigt ein plattenförmiges Bauteil (1), das mit wenigstens einem Wandler (2) verbunden ist und das durch den Wandler (2) zu Biegeschwingungen angeregt wird, das dementsprechend in Resonanz tritt und das als akustischer Multimoden-Resonanz-Strahler wirkt. Dabei gibt das plattenförmige Bauteil (1) abhängig von dem dem Wandler (2) zugeführten elektrischen Audiosignal ein dementsprechendes akustisches Signal ab. Das Flächenelement zeigt eine Spannvorrichtung (3), die das plattenförmige Bauteil (1) unter Spannung hält, wodurch ein besonders gutes akustisches Verhalten des Flächenelementes im Bassbereich gegeben ist. Das Flächenelement kann als Ersatz für ein passives Flächenelement, also für ein Flächenelement ohne Lautsprecherfunktion, verwendet werden.

Figure 00000001
The invention relates to a surface element with the function of a flat speaker. The surface element shows a plate-shaped component (1), which is connected to at least one transducer (2) and which is excited by the transducer (2) to bending vibrations, which accordingly resonates and which acts as a multi-mode acoustic resonant emitter. In this case, the plate-shaped component (1) outputs a corresponding acoustic signal as a function of the electrical audio signal fed to the converter (2). The surface element shows a tensioning device (3), which keeps the plate-shaped component (1) under tension, whereby a particularly good acoustic behavior of the surface element in the bass region is given. The surface element can be used as a replacement for a passive surface element, ie for a surface element without loudspeaker function.
Figure 00000001
EP00110008A 1999-05-14 2000-05-12 Flat element Withdrawn EP1052879A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1999122395 DE19922395C1 (en) 1999-05-14 1999-05-14 Ceiling element
DE19922395 1999-05-14

Publications (2)

Publication Number Publication Date
EP1052879A2 EP1052879A2 (en) 2000-11-15
EP1052879A3 true EP1052879A3 (en) 2005-07-27

Family

ID=7908164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110008A Withdrawn EP1052879A3 (en) 1999-05-14 2000-05-12 Flat element

Country Status (2)

Country Link
EP (1) EP1052879A3 (en)
DE (1) DE19922395C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50115744D1 (en) 2001-07-13 2011-01-27 Harman Becker Automotive Sys PANEL SPEAKER
DE10314506B3 (en) * 2003-03-11 2004-12-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Integrated speaker system
WO2004082320A2 (en) 2003-03-11 2004-09-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Integrated loudspeaker system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001011B (en) * 1955-08-11 1957-01-17 Rundfunktechnisches Inst G M B Device for generating artificial reverberation
DE2819615A1 (en) * 1978-05-05 1979-11-08 Messerschmitt Boelkow Blohm METHOD FOR ACHIEVING EVEN SOUND DISTRIBUTION PROPERTIES
WO1999052324A1 (en) * 1998-04-02 1999-10-14 New Transducers Limited Acoustic device relying on bending wave action
WO1999060818A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Panel loudspeaker

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUP9900181A3 (en) * 1995-09-02 2001-08-28 New Transducers Ltd Loudspeakers comprising panel-form acoustic radiating elements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1001011B (en) * 1955-08-11 1957-01-17 Rundfunktechnisches Inst G M B Device for generating artificial reverberation
DE2819615A1 (en) * 1978-05-05 1979-11-08 Messerschmitt Boelkow Blohm METHOD FOR ACHIEVING EVEN SOUND DISTRIBUTION PROPERTIES
WO1999052324A1 (en) * 1998-04-02 1999-10-14 New Transducers Limited Acoustic device relying on bending wave action
WO1999060818A1 (en) * 1998-05-15 1999-11-25 Harman Audio Electronic Systems Gmbh Panel loudspeaker

Also Published As

Publication number Publication date
EP1052879A2 (en) 2000-11-15
DE19922395C1 (en) 2001-01-11

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