EP2172059A2 - Membrane having a multipart structure - Google Patents
Membrane having a multipart structureInfo
- Publication number
- EP2172059A2 EP2172059A2 EP08784571A EP08784571A EP2172059A2 EP 2172059 A2 EP2172059 A2 EP 2172059A2 EP 08784571 A EP08784571 A EP 08784571A EP 08784571 A EP08784571 A EP 08784571A EP 2172059 A2 EP2172059 A2 EP 2172059A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- loudspeaker
- intermediate layer
- membrane according
- loudspeaker membrane
- fibers
- 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
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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
-
- 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
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
- H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
-
- 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
- H04R2307/021—Diaphragms comprising cellulose-like materials, e.g. wood, paper, linen
-
- 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
- H04R2307/025—Diaphragms comprising polymeric materials
-
- 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
- H04R2307/027—Diaphragms comprising metallic materials
-
- 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 invention is a very thin, rigid, light weight, multi-ply material which has very high internal damping and whose properties are obtained by assembling different materials and by finally processing them by means such as e.g. thermal processes, which is particularly well suited for the production of loudspeaker membranes.
- the material used consists essentially of at least 2 amorphous or crystalline films which are bonded to form a sandwich via at least 2 adhesive layers and at least one layer of non-woven fabric, Veil or fabric.
- the membrane technologies used so far generally have a structure that turns out to be disadvantageous at least on one point.
- the best membrane desirably has the following characteristics over a wide frequency range:
- the outer layer e.g. the amorphous or crystalline material PEEK (polyetheretherketone) is used.
- PEEK polyetheretherketone
- This material has the property from a very high processing temperature to change its state and then increase again in hardness or strength (depending on the addition, for example, talc, this state can be changed again). It should be noted that it must be ensured that the film / material must be treated in any case plasma to reduce the surface tension or to ensure better adhesion or adhesion.
- the outer layers are now on an adhesive that is thermoplastically deformable and does not break even at high temperatures, on or with a middle of, for example, so-called Veil (English expression for web) of longer fibers, such as carbon, which are bound with a Glued or better laminated laminated polyvinyl alcohol or polyester binder. This is done under high pressure (1 to 10 bar / m 2 ) and high temperature (between 1 ° C and 360 ° C).
- this sandwich membrane is very thin (depending on the top layer, adhesive, and spacer material used) and by the low adhesive amounts used, the membrane can be used in wide frequency ranges - such. also for the treble range.
- a multilayer construction of the intermediate layer is also conceivable if, for example, an even firmer and heavier membrane is needed, here e.g. for very large membranes in the professional PA sector.
- membranes are deformed or deep drawn after laminating by high pressure and high temperatures (between 1 ° C and 450 ° C) between two mold halves (molds).
- plastics such as e.g. Previously mentioned PEEK or polyphenylene sulfides, which change their condition from certain temperatures.
- the areas of application or the possible applications are, like the construction itself, extremely versatile. There are hardly any restrictions here. Loudspeakers manufactured in this way can be used in home, public address, installation, automotive, aviation, marine, etc. areas.
- the installation locations may be: free-standing or suspended, on / in or as a wall / partition wall, on / in or as a floor / floor, under - and as a ceiling, on / in or as a door / motor vehicle - door / ceiling / cladding / Armature, in mobile or immobile situations.
- the materials used may be e.g. be:
- PEEK Polyaryletherketone
- Hybrid webs of fibers (with polyvinyl alcohol or polyester binders), e.g. :
- Polyester Polyamide, Paraaramid, Metaaramid, Polypropylene, Polyethylene, PVDC, PVDF, PTFE, HD-PE, Polyphenylene sulfide, Polyimide, Carbon, Polyaryletherketone (PAEK), Composition of an aromatic polyimide and an aromatic polyethersulfone, PEEK (polyetheretherketone), metals such as eg Aluminum, paper and fiber materials and mixed materials of the above-mentioned materials.
- PAEK Polyaryletherketone
- cover layers or films of aforementioned materials i. e.g. one side polyester the other side aluminum.
- Fig. 1 symmetrical structure with an intermediate layer and 2 adhesive layers
- Fig. 2 symmetrical structure with two intermediate layers and 3 adhesive layers
- Fig. 3 execution of a cone membrane
- Fig. 4 Execution cut with one-sided cover layer
- Fig. 5 Execution cut with two-sided cover layers
- Fig. 6 Execution cut with two cover layers and an intermediate layer
- FIG. 7 Frequency response and distortions of a 100 mm midrange driver with the diaphragm according to the invention standardized drive
- Fig. 8 Frequency response and distortions of a 100 mm midrange with a
- FIG. 9 shows the frequency response and distortions of a 160 mm midrange driver with the diaphragm according to the invention standardized drive
- Fig. 10 Frequency response and distortions of a 160 mm midrange driver with an aluminum diaphragm standardized drive.
- FIG. 1 shows as a variant the membrane designed according to the invention, with a symmetrical construction.
- FIG. 2 shows, as a variant, the membrane designed according to the invention, with a double symmetrical structure.
- the membrane designed according to the invention with a double symmetrical structure.
- the directional intermediate layers nonwovens 5 which are rotated against each other and the adhesive layers 2 and the outer layers.
- FIG. 3 shows a typical cone-shaped loudspeaker diaphragm made from the membrane material designed according to the invention.
- FIG. 4 shows the section of FIG. 3 in the embodiment as a one-sided membrane construction with the cover layer 3 and a layer Veil 4.
- FIG. 5 shows the section of FIG. 3 in the embodiment as a symmetrical membrane construction as in FIG. 2.
- FIG. 6 shows the section of FIG. 3 in the embodiment as a double symmetrical membrane construction with the cover layers 3 and the intermediate layers of directionally oriented nonwovens 5 which are glued turned against one another.
- FIG. 7 shows the frequency response and the distortion behavior (lower set of curves in%) of a loudspeaker with the membrane or technology according to the invention as a 100 mm diameter system. If one now compares the curves or amplitude curves of the frequency response and the distortions with those of FIG. 8, the same loudspeaker with aluminum diaphragm only, one quickly realizes that all curves from FIG. 7 have a more linear or straight frequency curve and that the Distortions are lower.
- the membrane material according to the invention is shown, which (from top to bottom) via lamination the top layer in this example PEEK (polyetheretherketone) 3, with adhesive 2 and made with non-directional fibers carbon Veil 4 and adhesive 2 with another top layer in this example PEEK (polyetheretherketone) 3 bonded to a sandwich.
- PEEK polyetheretherketone
- the membrane material according to the invention is shown, which (shown from top to bottom) via lamination the top layer in this example PEEK (polyetheretherketone) 3, with adhesive 2 and with Carbon fiber fleece 5 produced by directional fibers, carbon fiber fleece 5 produced by means of adhesive 2 with another directional fiber which is turned by 90 ° to the previous layer 5 and bonded to a further cover layer in this example PEEK (polyether ether ketone) 3 via adhesive 2 to form a sandwich ,
- FIG. 3 shows the membrane material according to the invention as described in FIG. 1, which has been deeply drawn or deformed in the manner previously described to form a cone speaker membrane.
- FIGS. 4 to 6 show the membrane material according to the invention, which has been deeply drawn or deformed into a conical loudspeaker membrane by means of the previously described manner in various embodiments.
- FIG. 4 shows the membrane material according to the invention as a membrane coated on one side and comprising a cover layer 3 (in this example PEEK (polyether ether ketone)) with the carbon Veil 4 produced from non-directionally oriented fibers for the purpose of pure mechanical damping of the cover layer 3.
- a cover layer 3 in this example PEEK (polyether ether ketone)
- the carbon Veil 4 produced from non-directionally oriented fibers for the purpose of pure mechanical damping of the cover layer 3.
- FIG. 5 shows the two-sided sandwich as described in FIG. 1
- FIG. 6 shows the double sandwich according to FIG. 2
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007030665A DE102007030665A1 (en) | 2007-07-02 | 2007-07-02 | Diaphragm with multi-part construction |
PCT/EP2008/005293 WO2009003658A2 (en) | 2007-07-02 | 2008-06-27 | Membrane having a multipart structure |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2172059A2 true EP2172059A2 (en) | 2010-04-07 |
EP2172059B1 EP2172059B1 (en) | 2011-08-31 |
Family
ID=40120225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08784571A Not-in-force EP2172059B1 (en) | 2007-07-02 | 2008-06-27 | Membrane having a multipart structure |
Country Status (5)
Country | Link |
---|---|
US (1) | US8496086B2 (en) |
EP (1) | EP2172059B1 (en) |
AT (1) | ATE523040T1 (en) |
DE (1) | DE102007030665A1 (en) |
WO (1) | WO2009003658A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012208477A1 (en) | 2012-05-21 | 2013-11-21 | Tesa Se | Asymmetric multilayer membrane for electroacoustic transducers |
WO2014170122A1 (en) | 2013-04-16 | 2014-10-23 | Tesa Se | Composite for production of an acoustic membrane and acoustic membrane |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009032793A1 (en) * | 2009-07-08 | 2011-01-13 | Nihat Demir | Product e.g. tray support, for supporting tray in e.g. hotel, has multi-layerly developed anti-slide coating that is formed on both sides of fibrous web, where web consists of amorphous fibrous structures |
DE102011084168B4 (en) * | 2011-10-07 | 2020-07-09 | Röchling Automotive AG & Co. KG | Flexible shaft loudspeaker, motor vehicle with flexible shaft loudspeaker, and use of a flexible shaft loudspeaker |
FR3000863B1 (en) | 2013-01-07 | 2015-01-02 | Focal Jmlab | SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE |
US9113250B2 (en) * | 2013-05-29 | 2015-08-18 | Tang Band Industries Co., Ltd. | Speaker with diaphragm arrangement |
CN103475981B (en) * | 2013-08-27 | 2017-05-17 | 歌尔股份有限公司 | loudspeaker vibration system |
GB2518660A (en) * | 2013-09-27 | 2015-04-01 | Pss Belgium Nv | Loudspeaker |
DE102013225665A1 (en) | 2013-12-11 | 2015-06-18 | Tesa Se | Multi-layer laminate with high internal damping |
CN103731793A (en) * | 2013-12-27 | 2014-04-16 | 瑞声声学科技(深圳)有限公司 | Method for manufacturing compound vibrating diaphragm |
CN103916801A (en) * | 2014-04-25 | 2014-07-09 | 瑞声光电科技(常州)有限公司 | Composite vibrating diaphragm and manufacturing method thereof |
CN103929708A (en) * | 2014-04-25 | 2014-07-16 | 瑞声光电科技(常州)有限公司 | Preparation method of composite vibrating diaphragm |
CN203883985U (en) * | 2014-05-26 | 2014-10-15 | 歌尔声学股份有限公司 | Loudspeaker diaphragm |
CN105282664B (en) * | 2014-06-19 | 2019-01-01 | 美特科技(苏州)有限公司 | A kind of graphene-carbon nanotubes composite diaphragm |
CN105323697A (en) * | 2014-07-28 | 2016-02-10 | 美特科技(苏州)有限公司 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
FR3028704B1 (en) * | 2014-11-17 | 2018-03-09 | Focal Jmlab | SPEAKER MEMBRANE, AND METHOD FOR MANUFACTURING SUCH MEMBRANE |
CN204316743U (en) * | 2014-12-09 | 2015-05-06 | 瑞声精密电子沭阳有限公司 | Composite diaphragm and use the loud speaker of this composite diaphragm |
DE102014118532B4 (en) * | 2014-12-12 | 2017-03-23 | Axagarius Gmbh & Co. Kg | Device having a filter layer and method for recovering nucleic acids from formalin-fixed and paraffin-embedded samples |
US20180139540A1 (en) * | 2015-04-30 | 2018-05-17 | Ole Wolff Elektronik A/S | Deep-drawn foil-based miniature diaphragm assembly |
CN106412773B (en) * | 2015-07-29 | 2019-03-26 | 深圳市摩码科技有限公司 | A kind of top dome of vibrating diaphragm and preparation method thereof |
CN105933831B (en) * | 2016-04-22 | 2020-05-12 | 歌尔股份有限公司 | Vibrating diaphragm and miniature sounder provided with same |
DE102017202624A1 (en) | 2017-02-17 | 2018-08-23 | Tesa Se | Vibration-damping silicone pressure-sensitive adhesive |
DE102017202623A1 (en) | 2017-02-17 | 2018-08-23 | Tesa Se | Vibration-damping silicone pressure-sensitive adhesive |
DE102017202621A1 (en) | 2017-02-17 | 2018-08-23 | Tesa Se | Vibration-damping silicone pressure-sensitive adhesive |
CN109862482B (en) * | 2018-12-29 | 2021-10-01 | 瑞声声学科技(深圳)有限公司 | Ball top material, vibrating diaphragm and loudspeaker |
DE102019210296B4 (en) * | 2019-07-11 | 2021-08-12 | Continental Engineering Services Gmbh | Device for generating sound and its manufacture and use |
TWI707590B (en) * | 2019-07-18 | 2020-10-11 | 美商微相科技股份有限公司 | Sound film structure to improve bass sound quality |
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US4140203A (en) * | 1976-05-17 | 1979-02-20 | Matsushita Electric Industrial Co., Ltd. | Acoustic diaphragm with polyurethane elastomer coating |
GB8514189D0 (en) * | 1985-06-05 | 1985-07-10 | Reefgrade Ltd | Electro-mechanical transducer diaphragm |
JPS63226689A (en) * | 1986-10-17 | 1988-09-21 | 林 顕 | Sound generating diaphragm |
JPH04181899A (en) * | 1990-04-13 | 1992-06-29 | Sansui Electric Co Ltd | Diaphragm for speaker |
US5274199A (en) * | 1990-05-18 | 1993-12-28 | Sony Corporation | Acoustic diaphragm and method for producing same |
US5329072A (en) * | 1991-05-23 | 1994-07-12 | Yamaha Corporation | Acoustic diaphragm |
JP2651094B2 (en) * | 1992-10-22 | 1997-09-10 | 旭化成工業株式会社 | Speaker cone and method of manufacturing the same |
EP0942625A3 (en) * | 1993-06-28 | 2002-05-15 | Matsushita Electric Industrial Co., Ltd. | Method for fabricating diaphragm-edge integral molding for speakers |
US6404897B1 (en) * | 1999-01-05 | 2002-06-11 | Harman International Industries, Inc. | Ceramic metal matrix diaphragm for loudspeakers |
WO2004098236A1 (en) * | 1999-01-27 | 2004-11-11 | Toshihide Inoue | Speaker diaphragm |
US6453049B1 (en) * | 1999-03-12 | 2002-09-17 | Gti Audio Systems Internation Inc. | Acoustic diaphragm |
US20010006131A1 (en) * | 1999-12-16 | 2001-07-05 | Charles Bream | Composite panel constructions |
EP1429582B1 (en) * | 2002-12-09 | 2013-01-16 | Onkyo Corporation | Loudspeaker diaphragm and method for manufacturing the same |
JP4033048B2 (en) * | 2003-06-11 | 2008-01-16 | ソニー株式会社 | Speaker diaphragm manufacturing method and speaker diaphragm |
JP2005080098A (en) * | 2003-09-02 | 2005-03-24 | Pioneer Electronic Corp | Diaphragm for speaker and speaker having the same |
DE202004000509U1 (en) * | 2004-01-14 | 2005-05-19 | Schwarzenberg, Hans-Josef | Speaker diaphragm |
US7483545B2 (en) * | 2004-07-07 | 2009-01-27 | Tadashi Nagaoka | Acoustic diaphragm |
JP4049179B2 (en) * | 2005-05-25 | 2008-02-20 | オンキヨー株式会社 | Speaker diaphragm and speaker structure |
TWM290647U (en) * | 2005-11-02 | 2006-05-11 | Beston Technology Corp | A structure for ribbon speaker |
-
2007
- 2007-07-02 DE DE102007030665A patent/DE102007030665A1/en not_active Withdrawn
-
2008
- 2008-06-27 EP EP08784571A patent/EP2172059B1/en not_active Not-in-force
- 2008-06-27 WO PCT/EP2008/005293 patent/WO2009003658A2/en active Application Filing
- 2008-06-27 US US12/667,531 patent/US8496086B2/en active Active
- 2008-06-27 AT AT08784571T patent/ATE523040T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO2009003658A2 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012208477A1 (en) | 2012-05-21 | 2013-11-21 | Tesa Se | Asymmetric multilayer membrane for electroacoustic transducers |
WO2013174609A1 (en) | 2012-05-21 | 2013-11-28 | Tesa Se | Asymmetrical multi-layered membrane for electroacoustic transducers |
US9796160B2 (en) | 2012-05-21 | 2017-10-24 | Tesa Se | Asymmetrical multi-layered membrane for electroacoustic transducers |
WO2014170122A1 (en) | 2013-04-16 | 2014-10-23 | Tesa Se | Composite for production of an acoustic membrane and acoustic membrane |
DE102013206812A1 (en) | 2013-04-16 | 2014-11-06 | Tesa Se | Composite for the production of an acoustic membrane and acoustic membrane |
US9827749B2 (en) | 2013-04-16 | 2017-11-28 | Tesa Se | Composite for production of an acoustic membrane and acoustic membrane |
Also Published As
Publication number | Publication date |
---|---|
US20100288579A1 (en) | 2010-11-18 |
EP2172059B1 (en) | 2011-08-31 |
US8496086B2 (en) | 2013-07-30 |
DE102007030665A1 (en) | 2009-01-15 |
WO2009003658A2 (en) | 2009-01-08 |
WO2009003658A3 (en) | 2009-04-02 |
ATE523040T1 (en) | 2011-09-15 |
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