WO1991001074A1 - Enceinte acoustique - Google Patents

Enceinte acoustique Download PDF

Info

Publication number
WO1991001074A1
WO1991001074A1 PCT/EP1990/001123 EP9001123W WO9101074A1 WO 1991001074 A1 WO1991001074 A1 WO 1991001074A1 EP 9001123 W EP9001123 W EP 9001123W WO 9101074 A1 WO9101074 A1 WO 9101074A1
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker
frequency
box
low
mid
Prior art date
Application number
PCT/EP1990/001123
Other languages
German (de)
English (en)
Inventor
Werner Kranefeld
Original Assignee
Stark, Henric
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 Stark, Henric filed Critical Stark, Henric
Priority to EP90910119A priority Critical patent/EP0482030B1/fr
Priority to DE59007284T priority patent/DE59007284D1/de
Publication of WO1991001074A1 publication Critical patent/WO1991001074A1/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
    • 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Definitions

  • the invention relates to a loudspeaker box.
  • Loudspeakers usually consist of an often regularly, sometimes irregularly shaped housing, on or on which two, three or even more loudspeakers are generally arranged. Examples are disclosed in DE-GM 81 06 248, DE-OS 2328813, 2433916, DE-GM 85 11 970, DE-OS 27 01 080, DE-OS 24 26666, DE-GM 8529497.
  • the housing must have certain minimum dimensions in order on the one hand to act as a resonance body and on the other hand to ensure that the sound is emitted as uniformly as possible on all sides.
  • reflectors or "acoustic lenses" are occasionally provided.
  • the function of the well-known loudspeakers can be seen from the outside, and they can only be called decorative furnishings in very rare cases.
  • the object of the invention is to create a loudspeaker box which, due to its all-round uniform radiation behavior, is both independent of its installation location and independent of the installation method, ie orientation, but still surpasses the sound pattern of conventional loudspeaker boxes.
  • Another aspect of the invention is to design this loudspeaker box so that its function as a loudspeaker box cannot be seen in order to create a decorative, for example lamp-like piece of furniture in which optimal protection of the technology, in particular of the sensitive loudspeaker itself, is ensured is.
  • the preferably truncated pyramid-shaped housing does not reveal from the outside that it is a loudspeaker box, especially not if the loudspeaker systems are mounted inside the housing, i.e. are not screwed onto or onto a baffle, as is customary with other loudspeakers, and the housing walls are additionally e.g. consist of translucent plastic, behind which, inside the housing, a light source is preferably arranged.
  • the loudspeaker box stands on the strut-like integrated box feet described in detail below. This ensures optimal acoustic decoupling of the speaker from its base.
  • Fig. 1 shows the box in side view
  • Fig. 2 shows a side view of the arrangement of the woofer
  • Fig. 3 shows a partial section along line 3-3 in Fig. 1
  • Fig. 4 shows the structure of a box foot.
  • each carrier is glued or potted with the abutting edges of the walls 10, and a transparent plastic profile inserted into the millings of the walls connects the two walls in a form-fitting manner.
  • the cavity between the profile 14, the walls 10 and the support 12 is potted with transparent material, so that an acoustically optimal, yet stable construction is realized.
  • a tweeter loudspeaker 20 is fastened to a frame 18 and a mid-range loudspeaker 22 underneath it; underneath both there is an insulating layer 24 made of wadding or the like.
  • the carriers 12 extend beyond the edges 16 and carry a spherical-shell-shaped reflector 28, which ensures that the sound waves emitted by the loudspeakers 20 and 22 are deflected and uniformly distributed all around. With this principle, the optimum loudspeaker tuning is achieved by actively controlling the loudspeakers 20 and 22.
  • a triangular base plate 32 is inserted just above the lower horizontal edge 30 of the walls and carries a low-frequency loudspeaker above a central, round cutout 34, which radiates downwards.
  • a triangular hard foam plate 38 elastically bonded flush with the inside edges of the housing; for example with a foam surround; which, when installed, serves as a passive membrane and increases the membrane area by a considerable amount. It can be seen that, owing to the completely centrally symmetrical structure, a correspondingly completely uniform radiation characteristic must result.
  • a light source for example a UV light tube, is preferably arranged between the upper and lower loudspeaker groups, and the base plate can serve as a support. Since such light sources are known per se, the illustration has been omitted in the drawing. However, it is worth mentioning that the color of the loudspeaker box can be changed as desired with little effort, for example by inserting differently colored, fluorescent rods.
  • a crossover is also housed on the base plate, which contains and controls the output stages for the active high-mid-range unit and supplies the low-frequency system directly with the audio signal.
  • the carriers 12 are tubular and closed at the upper end.
  • Round plastic rods 42 are inserted into these carriers, which are supported at the upper end on a spiral spring 44 which is fastened to the frequent, closed end of the carrier.
  • the speaker is suspended freely and is acoustically decoupled from the base.
  • a foam block or another spring element can also be used instead of the screw spring.

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

Enceinte acoustique, sous forme d'une pyramide, de préférence à trois côtés, effilée vers le haut, prenant appui élastiquement sur sa base, à l'intérieur de laquelle sont montés, invisibles de l'extérieur, un haut-parleur diffusant vers le bas, pour les basses fréquences, et un haut-parleur diffusant vers le haut, pour les hautes fréquences.
PCT/EP1990/001123 1989-07-13 1990-07-10 Enceinte acoustique WO1991001074A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90910119A EP0482030B1 (fr) 1989-07-13 1990-07-10 Enceinte acoustique
DE59007284T DE59007284D1 (de) 1989-07-13 1990-07-10 Lautsprecherbox.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3923126A DE3923126A1 (de) 1989-07-13 1989-07-13 Lautsprecherbox
DEP3923126.7 1989-07-13

Publications (1)

Publication Number Publication Date
WO1991001074A1 true WO1991001074A1 (fr) 1991-01-24

Family

ID=6384926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001123 WO1991001074A1 (fr) 1989-07-13 1990-07-10 Enceinte acoustique

Country Status (4)

Country Link
EP (1) EP0482030B1 (fr)
AT (1) ATE112125T1 (fr)
DE (2) DE3923126A1 (fr)
WO (1) WO1991001074A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687268A1 (fr) * 1992-02-06 1993-08-13 Colin Olivier Enceinte acoustique omnidirectionnelle et procede de fabrication.
US5895833A (en) * 1993-01-28 1999-04-20 Cohesion Technologies, Inc. Production of human recombinant collagen in the milk of transgenic animals
WO2009061818A1 (fr) 2007-11-05 2009-05-14 Medimmune, Llc Procédés de traitement de la sclérodermie
WO2011042019A1 (fr) * 2009-10-07 2011-04-14 Sl Audio A/S Haut-parleur dipôle ayant une propagation diffuse vers l'arrière

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705406U1 (de) * 1997-03-25 1997-06-12 Bünzow, Hans-Dieter, Dipl.-Ing. (FH), 91054 Erlangen Gehäuse für einen Lautsprecher

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500953A (en) * 1968-12-04 1970-03-17 Uolevi L Lahti Loudspeaker system
DE2441950A1 (de) * 1974-09-02 1976-04-22 Karl Otto Poensgen Lautsprechergehaeuse
WO1985001176A1 (fr) * 1983-09-06 1985-03-14 Henry Oliver Wolcott Structure de haut-parleur
DE3721886A1 (de) * 1987-07-02 1989-01-12 Kellco Keller & Pfahls Gmbh Lautsprecherbox
EP0340435A2 (fr) * 1988-04-01 1989-11-08 Yamaha Corporation Appareil acoustique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500953A (en) * 1968-12-04 1970-03-17 Uolevi L Lahti Loudspeaker system
DE2441950A1 (de) * 1974-09-02 1976-04-22 Karl Otto Poensgen Lautsprechergehaeuse
WO1985001176A1 (fr) * 1983-09-06 1985-03-14 Henry Oliver Wolcott Structure de haut-parleur
DE3721886A1 (de) * 1987-07-02 1989-01-12 Kellco Keller & Pfahls Gmbh Lautsprecherbox
EP0340435A2 (fr) * 1988-04-01 1989-11-08 Yamaha Corporation Appareil acoustique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 11, Nr 110, E496, Zusammenfassung von JP 61-258600, publ 1986-11-15 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687268A1 (fr) * 1992-02-06 1993-08-13 Colin Olivier Enceinte acoustique omnidirectionnelle et procede de fabrication.
US5895833A (en) * 1993-01-28 1999-04-20 Cohesion Technologies, Inc. Production of human recombinant collagen in the milk of transgenic animals
WO2009061818A1 (fr) 2007-11-05 2009-05-14 Medimmune, Llc Procédés de traitement de la sclérodermie
WO2011042019A1 (fr) * 2009-10-07 2011-04-14 Sl Audio A/S Haut-parleur dipôle ayant une propagation diffuse vers l'arrière

Also Published As

Publication number Publication date
DE59007284D1 (de) 1994-10-27
EP0482030B1 (fr) 1994-09-21
ATE112125T1 (de) 1994-10-15
DE3923126A1 (de) 1991-01-17
EP0482030A1 (fr) 1992-04-29

Similar Documents

Publication Publication Date Title
DE10018344A1 (de) Türmodul für ein Kraftfahrzeug
WO1991001074A1 (fr) Enceinte acoustique
CH658966A5 (de) Bassreflex-lautsprechersystem.
EP2189351A1 (fr) Elément de plafond pour le revêtement intérieur de véhicules
DE4331959C2 (de) Lautsprecherbox
EP1258848A2 (fr) Détecteur optique de fumée
DE102011056028B4 (de) Mehrwegelautsprecher
DE202007015371U1 (de) Lautsprecher
DE19650522C2 (de) Kegelförmiger Lautsprechervorsatz
DE69125512T2 (de) Tonausrüstung für einen Fernseher
DE8700599U1 (de) Lautsprecherbox
EP3226237B1 (fr) Dispositif de diffusion sonore
EP1052879A2 (fr) Elément plat
EP0520385A2 (fr) Dispositif de haut-parleurs
DE102013223950B4 (de) Lautsprechergehäuse
DE2336416A1 (de) Hifi-lautsprecheranordnung
DE19530743C1 (de) Lautsprecherbox
DE9315009U1 (de) Personeninformations- und Leitsystem
DE19727130A1 (de) Halterung für Hornlautsprecher
DE2904094A1 (de) Akustische einfassung in form eines dekorativen elementes
DE102021118205A1 (de) Dunstabzugshaube mit Lautsprecher
DE19622302A1 (de) Lautsprechersystem zur gleichmäßigen Beschallung größerer Flächen
DE2911915A1 (de) Turm zur halterung von hi-fi-geraeten und fernsehapparaten
DE19824647A1 (de) Variables Halter- und Trägersystem zur Befestigung handelsüblicher Briefkästen (rückwandseitig), freistehend oder zur Montage an vorhandenen Objekten
DE102006036479B4 (de) Pflanztopf-Anordnung

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1990910119

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1990910119

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1990910119

Country of ref document: EP