EP0868108A3 - Piezoelektrischer Lautsprecher - Google Patents

Piezoelektrischer Lautsprecher Download PDF

Info

Publication number
EP0868108A3
EP0868108A3 EP98102000A EP98102000A EP0868108A3 EP 0868108 A3 EP0868108 A3 EP 0868108A3 EP 98102000 A EP98102000 A EP 98102000A EP 98102000 A EP98102000 A EP 98102000A EP 0868108 A3 EP0868108 A3 EP 0868108A3
Authority
EP
European Patent Office
Prior art keywords
membrane
piezo bending
bending oscillator
piezoelectric speaker
fixed
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.)
Granted
Application number
EP98102000A
Other languages
English (en)
French (fr)
Other versions
EP0868108A2 (de
EP0868108B1 (de
Inventor
Ingo Dr.-Ing. Borchers
Kerstin Burckas
Klaus Renger
Engelbert Kusch
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.)
Airbus Defence and Space GmbH
Original Assignee
Dornier 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 Dornier GmbH filed Critical Dornier GmbH
Publication of EP0868108A2 publication Critical patent/EP0868108A2/de
Publication of EP0868108A3 publication Critical patent/EP0868108A3/de
Application granted granted Critical
Publication of EP0868108B1 publication Critical patent/EP0868108B1/de
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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Die Erfindung betrifft einen piezoelektrischer Lautsprecher mit einer Membran (2) sowie einem Piezobiegeschwinger (3), wobei ein Ende des Piezobiegeschwingers festgelegt ist, und das andere Ende mechanisch auf die Membran wirkt, dadurch gekennzeichnet, dass mindestens ein weiterer, mit einem Ende festgelegter und mit dem anderen Ende mechanisch auf die Membran (2) wirkender Piezobiegeschwinger (3) vorhanden ist, und die Membran (2) eine Flachmembran oder eine kegelförmige Membran mit einem zwischen 0° und 10° liegenden Basiswinkel (α) ist.
EP98102000A 1997-03-26 1998-02-05 Piezoelektrischer Lautsprecher Expired - Lifetime EP0868108B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712728 1997-03-26
DE19712728A DE19712728C1 (de) 1997-03-26 1997-03-26 Piezoelektrischer Lautsprecher

Publications (3)

Publication Number Publication Date
EP0868108A2 EP0868108A2 (de) 1998-09-30
EP0868108A3 true EP0868108A3 (de) 2005-06-15
EP0868108B1 EP0868108B1 (de) 2007-04-04

Family

ID=7824705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102000A Expired - Lifetime EP0868108B1 (de) 1997-03-26 1998-02-05 Piezoelektrischer Lautsprecher

Country Status (4)

Country Link
US (1) US6122387A (de)
EP (1) EP0868108B1 (de)
DE (2) DE19712728C1 (de)
ES (1) ES2281920T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8011619B2 (en) * 2004-01-05 2011-09-06 Airbus Deutschland Gmbh Insulation package arrangement for insulating the interior of an aircraft fuselage
US7883056B2 (en) * 2004-01-05 2011-02-08 Airbus Deutschland Gmbh Insulation arrangement for the internal insulation of a vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521642A (en) * 1945-11-29 1950-09-05 Brush Dev Co Transducer means
DE2119892A1 (de) * 1971-04-23 1972-11-09 Institut für Nachrichtentechnik, χ 1160 Berlin Piezoelektrischer Wandler
GB1382927A (en) * 1972-06-30 1975-02-05 Ibm Electroacoustic transducer
JPS5776999A (en) * 1980-10-29 1982-05-14 Sumitomo Special Metals Co Ltd Piezoelectric speaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1261176B (de) * 1963-04-01 1968-02-15 Siemens Ag Piezoresistive Halbleiteranordnung
US4580252A (en) * 1983-04-20 1986-04-01 Halliburton Company Wide band acoustic receiver transducer
JPS6436195A (en) * 1987-07-31 1989-02-07 Nitsuko Ltd Piezoelectric speaker
FR2643772B1 (fr) * 1989-02-27 1991-06-07 Horlogerie Photograph Fse Capsule piezoelectrique a portee plane et organes de maintien elastiques
FR2643771A1 (fr) * 1989-02-27 1990-08-31 Horlogerie Photograph Fse Capsule piezoelectrique a organes de maintien elastiques conducteurs
US5652801A (en) * 1994-05-02 1997-07-29 Aura Systems, Inc. Resonance damper for piezoelectric transducer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521642A (en) * 1945-11-29 1950-09-05 Brush Dev Co Transducer means
DE2119892A1 (de) * 1971-04-23 1972-11-09 Institut für Nachrichtentechnik, χ 1160 Berlin Piezoelektrischer Wandler
GB1382927A (en) * 1972-06-30 1975-02-05 Ibm Electroacoustic transducer
JPS5776999A (en) * 1980-10-29 1982-05-14 Sumitomo Special Metals Co Ltd Piezoelectric speaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 155 (E - 125) 17 August 1982 (1982-08-17) *

Also Published As

Publication number Publication date
EP0868108A2 (de) 1998-09-30
ES2281920T3 (es) 2007-10-01
DE59813958D1 (de) 2007-05-16
US6122387A (en) 2000-09-19
DE19712728C1 (de) 1998-11-19
EP0868108B1 (de) 2007-04-04

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