EP0685982B1 - Lautsprecher - Google Patents
Lautsprecher Download PDFInfo
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)
Description
Claims (4)
- Lautsprecher (10) für Tonsignale,dadurch gekennzeichnet,mit einer aus Metall gebildeten Lautsprechermembran (12),mit einem Lautsprecherkorb (11), undmit einer Sicke (15), welche die Lautsprechermembran (12) mit dem Lautsprecherkorb (11) verbindet,daß die Sicke (15) aus einer Metallfolie gebildet ist, unddaß zumindest diejenigen Oberflächenbereiche von Sicke (15) und Lautsprechermembran (12), die sich zur Verbindung beider Teile (12, 15) überlappen, aus Metallen gebildet sind, die miteinander ultraschallverschweißt sind.
- Lautsprecher nach Anspruch 1,
dadurch gekennzeichnet,
daß die Sickenfolie aus einer Kupfer-Beryllium-Legierung besteht. - Lautsprecher nach Anspruch 1 oder Anspruch 2,
dadurch gekennzeichnet,
daß die Kontur der Sicke (15) mindestens eine Wölbung (16) aufweist. - Lautsprecher nach Anspruch 1,
dadurch gekennzeichnet,
daß die Oberflächenbereiche von Sicke (15) und Lautsprecherkorb (11), die sich zur Verbindung beider Teile (11, 15) überlappen, aus Metallen gebildet sind, die miteinander ultraschallverschweißt sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4419251A DE4419251A1 (de) | 1994-06-01 | 1994-06-01 | Lautsprecher |
| DE4419251 | 1994-06-01 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0685982A2 EP0685982A2 (de) | 1995-12-06 |
| EP0685982A3 EP0685982A3 (de) | 1996-06-05 |
| EP0685982B1 true EP0685982B1 (de) | 2000-02-09 |
Family
ID=6519588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95107544A Expired - Lifetime EP0685982B1 (de) | 1994-06-01 | 1995-05-18 | Lautsprecher |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0685982B1 (de) |
| JP (1) | JPH0851691A (de) |
| AT (1) | ATE189759T1 (de) |
| DE (2) | DE4419251A1 (de) |
Families Citing this family (3)
| 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)
| 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 (de) * | 1986-06-21 | 1988-01-07 | EWD Electronic-Werke Deutschland GmbH | Lautsprecher |
| 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 |
-
1994
- 1994-06-01 DE DE4419251A patent/DE4419251A1/de not_active Withdrawn
-
1995
- 1995-05-18 DE DE59507766T patent/DE59507766D1/de not_active Expired - Lifetime
- 1995-05-18 AT AT95107544T patent/ATE189759T1/de not_active IP Right Cessation
- 1995-05-18 EP EP95107544A patent/EP0685982B1/de not_active Expired - Lifetime
- 1995-05-31 JP JP7133843A patent/JPH0851691A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ATE189759T1 (de) | 2000-02-15 |
| JPH0851691A (ja) | 1996-02-20 |
| DE4419251A1 (de) | 1995-12-07 |
| EP0685982A2 (de) | 1995-12-06 |
| EP0685982A3 (de) | 1996-06-05 |
| DE59507766D1 (de) | 2000-03-16 |
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