[go: up one dir, main page]

EP0685982B1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

Info

Publication number
EP0685982B1
EP0685982B1 EP95107544A EP95107544A EP0685982B1 EP 0685982 B1 EP0685982 B1 EP 0685982B1 EP 95107544 A EP95107544 A EP 95107544A EP 95107544 A EP95107544 A EP 95107544A EP 0685982 B1 EP0685982 B1 EP 0685982B1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
bead
speaker
basket
membrane
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
EP95107544A
Other languages
German (de)
English (en)
Other versions
EP0685982A2 (fr
EP0685982A3 (fr
Inventor
Stefan Geisenberger
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 Audio Electronic 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 EP0685982A2 publication Critical patent/EP0685982A2/fr
Publication of EP0685982A3 publication Critical patent/EP0685982A3/fr
Application granted granted Critical
Publication of EP0685982B1 publication Critical patent/EP0685982B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider
    • 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
    • H04R2307/207—Shape aspects of the outer suspension of loudspeaker diaphragms

Definitions

  • the invention is concerned with the formation of Speakers, especially with the training of so-called beads, which the speaker membrane and connect the speaker basket.
  • a speaker as described in the preamble of claim 1 is known from DE-A-3 917 477.
  • the upper edge is the Loudspeaker membrane with the loudspeaker basket by means of connected to a surrounding bead.
  • Known beads are either made of paper / cardboard, plastic or Rubber formed and span the gap between the top of the speaker cone and the Loudspeaker basket, the bead in the distance area is provided with at least one curvature.
  • Training shows the zenith of the arches either in the direction of the sound radiation room Loudspeaker diaphragm or towards the magnet system. This curvature of the bead is necessary so that the upper one Edge of the loudspeaker diaphragm over the voice coil initiated stroke movement can follow.
  • the invention is therefore based on the object Specify the surround for speakers that meet the requirements of the State of the art existing temperature problems excludes known beads.
  • the bead made of a metal foil is formed.
  • metal foils in a thickness similar properties between 30 and 150 ⁇ m have, like the bead materials used so far.
  • the bead and / or Speaker cone completely form ultrasonically weldable metal, because in these Cases an independent coating of the respective There are no connection points.
  • the beading film is made of a Copper-beryllium alloy formed is high Bending alternating strength of the bead is given. Moreover beads can be made of such a material easy to set the desired shape deep draw. There is also copper-beryllium alloys are ultrasonically weldable with aluminum and the loudspeaker diaphragm when exposed to high temperatures Speakers for weight and cost reasons Aluminum should be made in in this case beading and speaker cone especially connect easily and quickly.
  • contour of the bead has more than one curvature, can also perform large lifting movements of the membrane become.
  • a curvature in the sense of this application is understood a contour that is roughly one sinusoidal curve between 0 and 180 degrees or 180 and corresponds to 360 degrees.
  • the surface areas of Beading and speaker basket that connect of these two parts overlap formed by ultrasonically weldable metals the connection between the surround and the speaker basket very simply by using the Carry out ultrasonic welding technology.
  • This figure shows the top part of a speaker 10 in side section, with the representations on the right and different to the left of the center line Have embodiments as the subject.
  • the representation according to the figure is clear removable that the speaker 10 by a Speaker basket 11 and a conical membrane 12th is formed.
  • the speaker diaphragm 12 is in the Speaker basket 11 used.
  • the top and in two examples of circular circumferential edge 13 of the speaker membrane 12 is with the edge 14 of the Speaker basket 11 by means of a surrounding bead 15 connected.
  • the remaining components of the speaker 10 are not for reasons of clarity shown.
  • the bead 15 which is the distance between the edges 13, 14 completely and circumferentially covered, is off a thin metal foil.
  • This metal foil consists of a in both embodiments Copper-beryllium alloy and has a thickness of about 100 ⁇ m.
  • the use of a completely Copper-beryllium-formed bead 15 has the advantage that it has a high flexural fatigue strength and - as will be shown - special simply with the materials of loudspeaker diaphragm 12 and / or speaker basket 11 can be connected.
  • This simple way of connecting bead 15 and Speaker basket 11 and / or speaker membrane 12 is also given if the bead 15 itself another material is formed and only has a metallic coating with the Materials of membrane 12 and / or basket 11 is ultrasonically weldable.
  • the right representation of the figure shows that the contour of the bead 15 the distance between the Edges 13, 14 with almost 3 bulges 16 according to the above definition spanned. Each of these 3 arches 16 has the same curve shape. Such a shaped one Bead 15 should be used when the stroke the loudspeaker diaphragm 12 is larger than 10 mm.
  • the curved contour of the bead 15 on each side includes an integral with the bead 15 Flange 17.1, 17.2.
  • the flanges 17.2, 17.1 overlap Edges 14, 13 of speaker basket 11 and Loudspeaker diaphragm 12.
  • Both the loudspeaker diaphragm 12 and the speaker basket 11 is made of aluminum educated. Because of this selection of materials from Loudspeaker basket 11, loudspeaker membrane 12 and surround 15 are the flanges 17.1 and 17.2 with the edges 13, 14 ultrasonically welded.
  • the left representation according to the figure differs from the right representation in that the Contour of the bead 15, which is the distance between the Margins 13, 14 spanned, only 2 bulges 16 having. Also the radii of curvature are both Arches 16 according to the left representation of the figure different sized. Because also in the embodiment according to the left representation of the figure Loudspeaker diaphragm 12 for the sake of Weight saving and temperature resistance is made of aluminum, the flange is 17.1 with the upper edge 13 of the speaker diaphragm 12 Ultrasonic welding connected.
  • the other flange 17.2 of the bead 15 is with the edge 14 of the Speaker basket 11 connected by rivets 18, because in this connection area the weight of the Connection as opposed to the connection between the Flange 17.1 and the edge 13 only a subordinate Role play.
  • the connection between the Flange 17.2 of the speaker basket 11 also as Screw connection.
  • the Speaker basket made of any metallic and therefore formed cheaper material than aluminum become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Liquid Crystal (AREA)
  • Surgical Instruments (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (4)

  1. Haut-parleur (10) pour signaux acoustiques, comprenant une membrane (12) de haut-parleur réalisée en métal, un panier (11) de haut-parleur et une moulure (15) qui relie la membrane (12) du haut-parleur au panier (11) du haut-parleur,
    caractérisé en ce que
    la moulure (15) est réalisée en une feuille de métal, et qu'au moins les zones superficielles de la moulure (15) et de la membrane (12) du haut-parleur qui se recouvrent pour relier les deux parties (12, 15) sont réalisées en métaux qui peuvent être soudés l'un à l'autre aux ultrasons.
  2. Haut-parleur selon la revendication 1,
    caractérisé en ce que
    la feuille de la moulure est réalisée en un alliage de cuivre et de béryllium.
  3. Haut-parleur selon l'une des revendications 1 ou 2
    caractérisé en ce que
    le contour de la moulure (15) présente au moins une ondulation (16)
  4. Haut-parleur selon la revendication 1,
    caractérisé en ce que
    les zones superficielles de la moulure (15) et du panier (11) du haut-parleur qui se recouvrent pour relier les deux parties (11, 15), sont réalisées en des métaux qui peuvent être soudés l'un à l'autre aux ultrasons.
EP95107544A 1994-06-01 1995-05-18 Haut-parleur Expired - Lifetime EP0685982B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419251 1994-06-01
DE4419251A DE4419251A1 (de) 1994-06-01 1994-06-01 Lautsprecher

Publications (3)

Publication Number Publication Date
EP0685982A2 EP0685982A2 (fr) 1995-12-06
EP0685982A3 EP0685982A3 (fr) 1996-06-05
EP0685982B1 true EP0685982B1 (fr) 2000-02-09

Family

ID=6519588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107544A Expired - Lifetime EP0685982B1 (fr) 1994-06-01 1995-05-18 Haut-parleur

Country Status (4)

Country Link
EP (1) EP0685982B1 (fr)
JP (1) JPH0851691A (fr)
AT (1) ATE189759T1 (fr)
DE (2) DE4419251A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614579C2 (de) * 1996-04-12 1998-07-16 Isophon Elektroakustische Prod Konusmembran für dynamische Lautsprecher
US6567528B1 (en) * 1999-11-18 2003-05-20 Harman International Industries, Incorporated Offset apex spider
US20050111689A1 (en) * 2003-11-21 2005-05-26 True Technologies Inc. Loudspeaker with assembly and performance improvements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1275791A1 (ru) * 1984-06-04 1986-12-07 Государственный Союзный Научно-Исследовательский Институт Радиовещательного Приема И Акустики Им.А.С.Попова Динамический громкоговоритель
DE3542202A1 (de) * 1985-11-29 1987-06-04 Bernhard Thiel Verfahren zur herstellung duennwandiger formteile aus keramik und durch das verfahren erhaltene membran fuer schallwandler
DE3620889A1 (de) * 1986-06-21 1987-12-23 Electronic Werke Deutschland Lautsprecher
EP0251057A1 (fr) * 1986-06-21 1988-01-07 EWD Electronic-Werke Deutschland GmbH Haut-parleur
US5062140A (en) * 1988-04-27 1991-10-29 Sony Corporation Induction speaker
DE3917477A1 (de) * 1989-05-30 1990-12-06 Eton Deutschland Electro Acous Lautsprechermembrane
SU1748290A1 (ru) * 1989-06-05 1992-07-15 Всесоюзный научно-исследовательский институт радиовещательного приема и акустики им.А.С.Попова Рупорный громкоговоритель

Also Published As

Publication number Publication date
EP0685982A2 (fr) 1995-12-06
ATE189759T1 (de) 2000-02-15
JPH0851691A (ja) 1996-02-20
DE4419251A1 (de) 1995-12-07
DE59507766D1 (de) 2000-03-16
EP0685982A3 (fr) 1996-06-05

Similar Documents

Publication Publication Date Title
DE2711996C2 (de) Elektroakustischer Wandler
DE69431177T2 (de) Hornlautsprecher-System
DE69635308T2 (de) Piezoelektrischer wandler
DE602004005465T2 (de) Lautsprecher mit gewellter membrane
DE2429464A1 (de) Akustischer wandler, insbesondere breitbandlautsprecher
DE60128766T2 (de) Elektroakustischer Wandler
DE3020659A1 (de) Schallmembran fuer lautsprecher und verfahren zu deren herstellung
DE2937926A1 (de) Membran fuer elektroakustische wandler
DE2401132C3 (de) Vorrichtung zur gerichteten Abstrahlung von Schallwellen
AT397898B (de) Membran für elektrodynamische wandler
DE102013113487A1 (de) Fahrradfelge
EP0685982B1 (fr) Haut-parleur
DE2503863C2 (de) Kalottenlautsprecher
DE69917148T2 (de) Elektroakustischer wandler und membrane für elektroakustischen wandler
EP0659031B1 (fr) Suspension pour haut-parleur à membrane conique
DE19827772C2 (de) Ringdichtung
DE2914246B1 (de) Elektromagnetische Stranggiesskokille
EP0685979A2 (fr) Membrane de centrage
WO1980001230A1 (fr) Membrane pour transducteur electroacoustique
EP0508150B1 (fr) Haut-parleur avec un élément joignant la suspension et le joint (à encastrer)
DE4497415B4 (de) Lautsprecher
DE3542458A1 (de) Grossflaechiger elektrostatischer lautsprecher
DE102014107911A1 (de) Fügeverbindung zur Bildung eines Hybridbauteils und ein Verfahren zur Herstellung eines Hybridbauteils
DE4419249A1 (de) Lautsprecher
DE10303247B4 (de) Kegelförmige Membrane und Lautsprecher

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19961012

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19990624

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HARMAN AUDIO ELECTRONIC SYSTEMS GMBH

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20000209

REF Corresponds to:

Ref document number: 189759

Country of ref document: AT

Date of ref document: 20000215

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20000209

REF Corresponds to:

Ref document number: 59507766

Country of ref document: DE

Date of ref document: 20000316

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Free format text: ERRATUM: THE FOLLOWING EUROPEAN PATENTS WERE ADVERTISED IN ERROR IN JOURNAL 5781 DATED 1 MARCH 2000 AS HAVING BEEN FILED UNDER SECTION 77(6)(A) ON 8 FEBRUARY 2000.

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20000509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000518

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000530

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000531

BERE Be: lapsed

Owner name: HARMAN AUDIO ELECTRONIC SYSTEMS G.M.B.H.

Effective date: 20000531

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010519

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20030513

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20041201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140527

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140529

Year of fee payment: 20

Ref country code: FR

Payment date: 20140519

Year of fee payment: 20

Ref country code: IT

Payment date: 20140526

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59507766

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150517

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150517