EP1558057A1 - Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung - Google Patents

Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung Download PDF

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Publication number
EP1558057A1
EP1558057A1 EP04075285A EP04075285A EP1558057A1 EP 1558057 A1 EP1558057 A1 EP 1558057A1 EP 04075285 A EP04075285 A EP 04075285A EP 04075285 A EP04075285 A EP 04075285A EP 1558057 A1 EP1558057 A1 EP 1558057A1
Authority
EP
European Patent Office
Prior art keywords
plate
shaped element
mentioned
epp
thickness
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Withdrawn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
EP04075285A
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English (en)
French (fr)
Inventor
Jacobus Maria De Rooij
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP04075285A priority Critical patent/EP1558057A1/de
Publication of EP1558057A1 publication Critical patent/EP1558057A1/de
Withdrawn legal-status Critical Current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
    • 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
    • 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

Definitions

  • the present invention relates to a device constructed as a loudspeaker for reproducing a sound spectrum, constructed of one or more octave bands of a sound source.
  • the known loudspeakers mostly consist of conical or spherical elements for sound emission, which elements are called diaphragms and which can be adjusted specifically as regards shape and dimensions to certain sound bands. Reproducing a broad sound spectrum therefore requires several loudspeakers with different dimensions and the arrangement thereof is relatively expensive and demands an extensive construction and/or arrangement, which highly affects the looks in the environment, which is not always appreciated.
  • a device according to the invention constructed as a loudspeaker with specific plastic element for sound emission is further developed in a very inventive way, characterized in that with the mentioned sound source a plate-shaped element with a space structure with thickness t is electrically driven, in which the mentioned plate-shaped element is made of a specific material with such a density in units of weight per litre and a suitable elasticity, so that an optimal sound emission takes place from the mentioned plate element.
  • the advantage is that in a surprisingly simple way a loudspeaker is created with a high sound quality at very low cost.
  • EPP Expanded Poly Propylene
  • the advantages are that the actual loudspeaker can simply be made in each shape and the material can easily be recycled.
  • the device according to the invention is developed in such a way, that the mentioned density varies from 20 to 120 grams per litre material, in which the real chosen density depends on the reproduction of the sound spectrum.
  • the advantage is, that a large amount of elements can be constructed as loudspeaker, which gives a lot of interesting possibilities for the environment.
  • FIG. 1 shows the loudspeaker 1 from the back side in oblique projection according to the invention.
  • the loudspeaker 1 consists of a plate-shaped element 2, which can be attached to a base plate 4 by means of raised [-shaped foot rests 3 and putty (not indicated).
  • a vertical post 5 is fixed on the base plate 4 .
  • two electric coil systems 6 and 7 are fixed, in which the magnet system is attached to the post 5 and the actual coil is glued in the plate-shaped element 2 by means of a groove construction, so that the plate-shaped element 2 of EPP can oscillate optimally to guarantee a good sound reproduction.
  • EPP Expanded Poly Propylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP04075285A 2004-01-23 2004-01-23 Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung Withdrawn EP1558057A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04075285A EP1558057A1 (de) 2004-01-23 2004-01-23 Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04075285A EP1558057A1 (de) 2004-01-23 2004-01-23 Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung

Publications (1)

Publication Number Publication Date
EP1558057A1 true EP1558057A1 (de) 2005-07-27

Family

ID=34626527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04075285A Withdrawn EP1558057A1 (de) 2004-01-23 2004-01-23 Lautsprecher mit einem spezifischen Kunststoffelement zur Schallabstrahlung

Country Status (1)

Country Link
EP (1) EP1558057A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618442A (en) * 1965-09-25 1971-11-09 Nippon Musical Instruments Mfg Vibrating plates for sound instruments and method of manufacturing the same
US4190746A (en) * 1976-03-19 1980-02-26 Harwood Hugh D Diaphragm material for moving coil loudspeaker, may be laminated or integral with surround
GB2310160A (en) * 1996-01-11 1997-08-20 Columbus Plastics Ltd Loudspeaker Components
EP0969691A1 (de) * 1998-01-16 2000-01-05 Sony Corporation Lautsprecher und elektronisches gerät unter verwendung eines lautsprechers
US6411723B1 (en) * 1998-06-22 2002-06-25 Slab Technology Limited Loudspeakers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3618442A (en) * 1965-09-25 1971-11-09 Nippon Musical Instruments Mfg Vibrating plates for sound instruments and method of manufacturing the same
US4190746A (en) * 1976-03-19 1980-02-26 Harwood Hugh D Diaphragm material for moving coil loudspeaker, may be laminated or integral with surround
GB2310160A (en) * 1996-01-11 1997-08-20 Columbus Plastics Ltd Loudspeaker Components
EP0969691A1 (de) * 1998-01-16 2000-01-05 Sony Corporation Lautsprecher und elektronisches gerät unter verwendung eines lautsprechers
US6411723B1 (en) * 1998-06-22 2002-06-25 Slab Technology Limited Loudspeakers

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