EP1016317B1 - Breitbandlautsprecher - Google Patents
Breitbandlautsprecher Download PDFInfo
- Publication number
- EP1016317B1 EP1016317B1 EP98919104A EP98919104A EP1016317B1 EP 1016317 B1 EP1016317 B1 EP 1016317B1 EP 98919104 A EP98919104 A EP 98919104A EP 98919104 A EP98919104 A EP 98919104A EP 1016317 B1 EP1016317 B1 EP 1016317B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loudspeaker
- enclosure
- loudspeaker according
- diaphragm
- cup
- 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Definitions
- the invention relates to an approximately point-emitting Broadband speakers with improved playback properties after the Claims 1 and 7.
- the idea of the invention is based on the ideal as small as possible spherical radiating point switching source.
- Coaxial speakers are known as a cone / dome and cone / horn combination.
- the sound outlet for the high frequency range is located in the cone mouth.
- the membrane which already modulates the tweeter portion assigned to you, is still exposed to the sound waves of the tweeter system - more with the dome, a little less with the horn.
- It is also disadvantageous that the sound components of the otherwise wide-angle dome are bundled in a frequency-dependent manner by the cone. In the Hom disturb the multiple reflections on the inner walls of the horn body.
- the dome-shaped loudspeaker front offers the advantage that the sound pressure waves do not break abruptly at the outer edges of the housing, but gradually. As a result, there are no interferences or irregularities in the amplitude frequency curve.
- the transition area between the conditions on an infinite baffle and those at the end of a long tube runs regularly here.
- the axially radiated sound waves are immediately and the radially radiated by the cone-shaped deflection surfaces Sound jacket led into the rear area of the housing.
- the deflection plane according to the invention from the rear wall of the housing can be formed, is preferably located at a 45 ° angle and deflects the sound waves in such a way that they often to the Inner walls of the housing shell, which has a polygonal cross section has to be reflected.
- An inserted in the housing cavity Damping material must be penetrated several times. Axial standing waves can don't train.
- the extremely stable housing construction is very resonant and allows it to save the usual speaker basket and the membrane suspension and Drive unit to be fixed directly in the housing, e.g. if Aluminum or plastic are used as materials.
- the membrane is designed as a spherical cap. In connection with a dome-shaped loudspeaker front, it becomes an almost perfect one Radiation behavior achieved in the described transition area.
- Partial vibrations of the membrane are significantly suppressed when the Dome membrane according to the invention is divided into stabilizing segments by using a polygonal cross section. If there is an asymmetrical division is selected, those that occur primarily opposite each other Do not build up vibration fields. A reshaping of the edge area inwards. to a circular flange, gives additional shape stability and creates one Layer for attaching the membrane suspension.
- the structure of the membrane in two zones and the elastic connection of the zones with each other - this can be a defined permanently elastic bond act - on the one hand again improves the radiation behavior, i.e. minimized Signs of bundling, on the other hand the efficiency for high frequencies.
- the dip in the amplitude frequency response caused by the elastic coupling can be corrected with a band pass. A breakdown into further ring zones is limited possible.
- the coil holder is attached in the center. Swashing movements of the membrane can end or double stored centering axis, which preferably consists of a light hollow body. be prevented.
- the disturbing (damping and reflecting) centering spider can omitted.
- FM distortion can be reduced if the center zone is off the Ring zone decoupled and with its own drive and membrane suspension is provided.
- the central zone drive has space in front of the drive for the Ring zone, the center zone also being provided by a complete sound transducer element, e.g. a neodymium dome, can be represented.
- the attachment of the inner Membrane suspension of the ring zone takes place on this drive or sound transducer, which at the same time ensures complete sealing to the housing. ever depending on the material properties of the membrane suspensions, this is one sufficient centering and zeroing possible.
- a minor one Phase deviation can be countered electronically.
- the subsequent one Housing leads back to the first solution, but can e.g. a ball housing with suitable inner contour.
- the loudspeaker is already in the basic setup - with free installation (not too small a distance from the walls) - an astonishingly realistic plastic Reproduction of appropriately recorded sound events possible. He's also best prepared for active pretreatment of the sound signals if, among other things the full dynamic range should be used.
- Figure 1 shows schematically the longitudinal section of the broadband speaker, in which a Sound converter (2) with conical membrane (4) in the dome-shaped front (6) is introduced, both by means of the membrane suspension (5) in a basket or in Housing (1) can be attached.
- the drive unit (3) with a basket can also be used or the housing (1) or the rear wall.
- the diagonally The created deflection plane (9) can be formed by the rear wall.
- the conical running inner contour directs radially radiated sound components in the rear Area of the housing (1), the elimination process described subject.
- Figure 2 shows the direct drive unit (3) and membrane suspension (5) on Enclosed sound transducers in convex and concave (dashed) design.
- the centering axis (15) is supported at the end, while the bearing (16) is not is described in more detail, e.g. but can also be an elastic bead.
- FIG. 3 shows the dome membrane divided into ring zone (12) and center zone (13) (10).
- the zones are fastened together by means of an elastic connection (14) shown schematically.
- the ring zone (12) must be stiffened in The coupling area expediently undergoes a reshaping.
- Figure 3a shows an enlarged detail of this area.
- FIG. 4 shows an arrangement with a separately driven center zone (13, 19).
- the inner membrane suspension (17) connects the ring zone (12) to the second drive (19) or with the coil carrier (18).
- the center zone (13) has its own Membrane suspension provided and can have its own sound transducer represent.
- Figure 5 shows a three-dimensional housing (1) without loudspeaker.
- the outer cross section is completely round, during the interior is polygonal, like the view into the housing and the recessed Show rear wall (9).
- Figure 6 shows a three-dimensional image of Figure 3.
- the view can at the same time Figures 2 and 4 illustrate. Ignoring the paragraph in the center, we see that Version according to FIG. 2, interpreting it as a membrane suspension, FIG. 4.
- the polygonal outer contour of the dome-shaped loudspeaker front (6) demonstrated a workable combination of solutions.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Saccharide Compounds (AREA)
Description
Diese vorgenannten Fehler führen zum Teil zu erheblichen harmonischen Verzerrungen.
Claims (17)
- Lautsprecher,mit einem Gehäuse (1), das eine kuppelförmige Lautsprecherfront (6) aufweist, die nach hinten in einen koaxial um die Lautsprecher-Mittelachse (7) herum angeordneten Gehäusemantel (8) mündet, undmit einem Schallwandler (2), der eine Antriebseinheit (3), eine Membran (4) und eine Membranaufhängung (5) aufweist,wobei der Schallwandler (2) auf der kuppelförmigen Lautsprecherfront (6) befestigt ist,daß eine diagonale, die Schallwellen ablenkende Umlenkebene (9) gehäuseinnenseitig der Rückseite der Membran (4) gegenüberliegt, unddaß der Querschnitt des Gehäusemantels (8) innenseitig ein Polygon beschreibt, das eine ungerade Seitenzahl aufweist.
- Lautsprecher nach Anspruch 1, dadurch gekennzeichnet, daß die diagonale Umlenkebene (9) von der Rückwand des Gehäuses (1) gebildet ist.
- Lautsprecher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Winkel zwischen der Umlenkebene (9) und der Lautsprecher-Mittelachse vorzugsweise 45° beträgt.
- Lautsprecher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Umlenkebene (9) derart ausgerichtet ist, daß ihr ein offener Winkel des Polygons gegenüberliegt.
- Lautsprecher nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die innenseitige Kontur der kuppelförmigen Lautsprecherfront (6) einen nach hinten konusförmigen Verlauf vom äußeren Befestigungsflansch der Membran (4) zum Gehäusemantel (8) hin aufweist.
- Lautsprecher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Gehäusemantel (8) konisch verläuft.
- Lautsprechermit einem Gehäuse (1)mit einem Schallwandler (2), der eine am Gehäuse (1) befestigte Antriebseinheit (3), eine Membran (4) und eine Membranaufhängung (5), die die Membran (4) mit dem Gehäuse (1) verbindet, aufweist,wobei die Membran (4) als Kalotte (10) ausgebildet ist,daß die Kalotte (10) eine polygonale Grundfläche aufweist.
- Lautsprecher nach Anspruch 7, dadurch gekennzeichnet, daß die polygonale Grundfläche der Kalotte (4) eine ungerade Seitenzahl aufweist.
- Lautsprecher nach Anspruch 8, dadurch gekennzeichnet, daß die Kalotte (10) im Randbereich nach Innen zu einem runden Flansch (11) umgeformt ist.
- Lautsprecher nach Anspruch 9, dadurch gekennzeichnet, daß die Membranaufhängung (5) am Flansch (11) befestigt ist.
- Lautsprecher nach Anspruch 7, dadurch gekennzeichnet, daß die Kalotte (10) mit einer Zentrierachse (15) verbunden ist, die im Gehäuse (1) gelagert ist (16).
- Lautsprecher nach Anspruch 10, dadurch gekennzeichnet, daß die Kalotte (10) in eine Ringzone (12) und eine Zentrumszone (13) unterteilt ist.
- Lautsprecher nach Anspruch 12, dadurch gekennzeichnet, daß die Ringzone (12) dauerelastisch mit der Zentrumszone (13) über ein Verbindungselement (14) verbunden ist.
- Lautsprecher nach Anspruch 13, dadurch gekennzeichnet, daß die Antriebseinheit (3) auf die Zentrumszone (13) wirkt.
- Lautsprecher nach Anspruch 12, dadurch gekennzeichnet, daß die Zentrumszone (13) ein eigenständiger Schallwandler mit separatem Antrieb (19) ist.
- Lautsprecher nach Anspruch 15, dadurch gekennzeichnet, daß der Antrieb (19) für die Zentrumszone (13) vor der Antriebseinheit (3) für die Ringzone (12) angeordnet ist.
- Lautsprecher nach Anspruch 16, dadurch gekennzeichnet, daß die Ringzone (12) mit einer zweiten, inneren Membranaufhängung (17) am Spulenträger (18) der Antriebseinheit (3) und am zweiten Antrieb (19) befestigt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19710967A DE19710967C1 (de) | 1997-03-17 | 1997-03-17 | Breitbandlautsprecher |
DE19710967 | 1997-03-17 | ||
PCT/EP1998/001526 WO1998042160A2 (de) | 1997-03-17 | 1998-03-17 | Breitbandlautsprecher |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1016317A2 EP1016317A2 (de) | 2000-07-05 |
EP1016317B1 true EP1016317B1 (de) | 2002-05-29 |
Family
ID=7823608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98919104A Expired - Lifetime EP1016317B1 (de) | 1997-03-17 | 1998-03-17 | Breitbandlautsprecher |
Country Status (14)
Country | Link |
---|---|
US (1) | US6385324B1 (de) |
EP (1) | EP1016317B1 (de) |
JP (1) | JP2002509666A (de) |
AT (1) | ATE218266T1 (de) |
AU (1) | AU7207398A (de) |
CA (1) | CA2284678A1 (de) |
DE (2) | DE19710967C1 (de) |
IL (1) | IL131879A0 (de) |
IS (1) | IS5179A (de) |
NO (1) | NO994467L (de) |
NZ (1) | NZ337842A (de) |
PL (1) | PL335614A1 (de) |
TR (1) | TR199902284T2 (de) |
WO (1) | WO1998042160A2 (de) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7362775B1 (en) | 1996-07-02 | 2008-04-22 | Wistaria Trading, Inc. | Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management |
US5613004A (en) | 1995-06-07 | 1997-03-18 | The Dice Company | Steganographic method and device |
US7664263B2 (en) | 1998-03-24 | 2010-02-16 | Moskowitz Scott A | Method for combining transfer functions with predetermined key creation |
US6205249B1 (en) | 1998-04-02 | 2001-03-20 | Scott A. Moskowitz | Multiple transform utilization and applications for secure digital watermarking |
US7159116B2 (en) | 1999-12-07 | 2007-01-02 | Blue Spike, Inc. | Systems, methods and devices for trusted transactions |
US7177429B2 (en) | 2000-12-07 | 2007-02-13 | Blue Spike, Inc. | System and methods for permitting open access to data objects and for securing data within the data objects |
US5889868A (en) | 1996-07-02 | 1999-03-30 | The Dice Company | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7095874B2 (en) | 1996-07-02 | 2006-08-22 | Wistaria Trading, Inc. | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7346472B1 (en) | 2000-09-07 | 2008-03-18 | Blue Spike, Inc. | Method and device for monitoring and analyzing signals |
US7457962B2 (en) | 1996-07-02 | 2008-11-25 | Wistaria Trading, Inc | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7730317B2 (en) | 1996-12-20 | 2010-06-01 | Wistaria Trading, Inc. | Linear predictive coding implementation of digital watermarks |
US7664264B2 (en) | 1999-03-24 | 2010-02-16 | Blue Spike, Inc. | Utilizing data reduction in steganographic and cryptographic systems |
US7475246B1 (en) | 1999-08-04 | 2009-01-06 | Blue Spike, Inc. | Secure personal content server |
GB2364847B (en) * | 2000-07-11 | 2004-10-13 | Kef Audio | Compound loudspeaker having a magnet system |
US7127615B2 (en) | 2000-09-20 | 2006-10-24 | Blue Spike, Inc. | Security based on subliminal and supraliminal channels for data objects |
US7287275B2 (en) | 2002-04-17 | 2007-10-23 | Moskowitz Scott A | Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth |
US7006648B2 (en) * | 2003-10-22 | 2006-02-28 | Chao-Lang Wang | Speaker cabinet with increased air circulation efficiency |
GB2427522B (en) * | 2005-06-22 | 2008-07-16 | Gp Acoustics | Compound Loudspeaker |
EP2039213A4 (de) * | 2006-07-12 | 2011-06-29 | Anders Sagren | Hochfrequenzmembran- und schwingspulenbaugruppe |
GB2442260A (en) * | 2006-09-29 | 2008-04-02 | Martin Audio Ltd | Loudspeaker diaphragm conforms to surrounding acoustic surface |
US7604091B2 (en) * | 2007-06-13 | 2009-10-20 | Plantronics, Inc. | Asymmetric and continuously curved speaker driver enclosure to optimize audio fidelity |
CN104717586B (zh) | 2008-08-14 | 2019-06-11 | 哈曼国际工业有限公司 | 用于直接辐射式扩音器的相位插件和声透镜 |
JP2010081441A (ja) * | 2008-09-26 | 2010-04-08 | Bifristec Kk | スピーカ装置 |
DE102009024709A1 (de) * | 2009-06-12 | 2010-12-16 | Klaus Reck | Hochtonlautsprecher |
US8634586B2 (en) * | 2009-06-26 | 2014-01-21 | Polk Audio, Inc. | Ceiling-mounted loudspeaker enclosure |
EP2465890A1 (de) | 2010-12-17 | 2012-06-20 | Bayer MaterialScience AG | Verfahren zur Herstellung von Polyethercarbonatpolyolen mit primären Hydroxyl-Endgruppen und daraus hergestellte Polyurethanpolymere |
LT2794710T (lt) | 2011-12-20 | 2018-11-26 | Adhesys Medical Gmbh | Izocianato funkcinis prepolimeras, skirtas biologiškai skaidomai audinio rišamajai medžiagai |
CA2859566A1 (en) | 2011-12-20 | 2013-06-27 | Bayer Intellectual Property Gmbh | Hydroxy-aminopolymers and method for producing same |
JP2014039231A (ja) * | 2012-08-13 | 2014-02-27 | Kohon-Sha Llc | 同軸スピーカー |
US10244322B2 (en) * | 2016-10-11 | 2019-03-26 | YG Acoustics LLC | Space frame reinforced tweeter dome |
DE102017206004A1 (de) * | 2017-04-07 | 2018-10-11 | Bayerische Motoren Werke Aktiengesellschaft | Kraftfahrzeug |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7502568U (de) * | 1975-11-06 | Blaupunkt Werke Gmbh | Dynamischer Lautsprecher | |
US2145963A (en) | 1937-05-08 | 1939-02-07 | Harry A Adams | Auxiliary sound reproducing apparatus |
NL72895C (de) * | 1943-01-16 | |||
DE2057905B1 (de) * | 1970-11-25 | 1972-05-25 | Romen Faser Kunststoff | Lautsprecheranordnung mit von einem Antriebssystem angetriebener Hochton- und Tieftonmembran |
SE358800B (de) * | 1972-02-29 | 1973-08-06 | Bostedt J | |
US4122911A (en) | 1976-07-01 | 1978-10-31 | Acoustic Fiber Sound Systems, Inc. | Loudspeaker assembly |
US4063387A (en) * | 1976-12-27 | 1977-12-20 | Mitchell Thomas R | Hanging planter pot speaker enclosure |
US4300217A (en) * | 1980-07-30 | 1981-11-10 | Honeywell Inc. | Acoustic transducer housing |
JPS5750197A (en) * | 1980-09-11 | 1982-03-24 | Yuutopia Kiki Kk | Cabinet for speaker |
DE3241898A1 (de) | 1982-11-12 | 1984-07-19 | Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover | Elektrodynamischer wandler |
GB8402229D0 (en) | 1984-01-27 | 1984-02-29 | Tannoy Ltd | Moving coil loudspeaker |
DE3611120A1 (de) | 1986-04-03 | 1987-10-08 | Hans Buerk | Lautsprechersystem fuer gleichmaessige rundumabstrahlung hoeherer schallfrequenzanteile |
US4881265A (en) * | 1988-09-13 | 1989-11-14 | Soundwave Fidelity Corporation | Apex loudspeaker |
US5105905A (en) * | 1990-05-07 | 1992-04-21 | Rice Winston C | Co-linear loudspeaker system |
GB2250658A (en) * | 1990-12-07 | 1992-06-10 | Canon Res Ct Europe Ltd | Loudspeaker |
JPH0970092A (ja) * | 1995-09-01 | 1997-03-11 | Saalogic:Kk | 点音源・無指向性・スピ−カシステム |
-
1997
- 1997-03-17 DE DE19710967A patent/DE19710967C1/de not_active Expired - Fee Related
-
1998
- 1998-03-17 US US09/381,158 patent/US6385324B1/en not_active Expired - Fee Related
- 1998-03-17 EP EP98919104A patent/EP1016317B1/de not_active Expired - Lifetime
- 1998-03-17 IL IL13187998A patent/IL131879A0/xx unknown
- 1998-03-17 NZ NZ337842A patent/NZ337842A/xx unknown
- 1998-03-17 AT AT98919104T patent/ATE218266T1/de not_active IP Right Cessation
- 1998-03-17 AU AU72073/98A patent/AU7207398A/en not_active Abandoned
- 1998-03-17 DE DE59804255T patent/DE59804255D1/de not_active Expired - Fee Related
- 1998-03-17 WO PCT/EP1998/001526 patent/WO1998042160A2/de not_active Application Discontinuation
- 1998-03-17 CA CA002284678A patent/CA2284678A1/en not_active Abandoned
- 1998-03-17 TR TR1999/02284T patent/TR199902284T2/xx unknown
- 1998-03-17 JP JP54013498A patent/JP2002509666A/ja active Pending
- 1998-03-17 PL PL98335614A patent/PL335614A1/xx unknown
-
1999
- 1999-09-14 IS IS5179A patent/IS5179A/is unknown
- 1999-09-15 NO NO994467A patent/NO994467L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
IS5179A (is) | 1999-09-14 |
NO994467D0 (no) | 1999-09-15 |
WO1998042160A3 (de) | 1998-12-17 |
IL131879A0 (en) | 2001-03-19 |
CA2284678A1 (en) | 1998-09-24 |
DE59804255D1 (de) | 2002-07-04 |
NO994467L (no) | 1999-11-09 |
PL335614A1 (en) | 2000-05-08 |
DE19710967C1 (de) | 1998-10-22 |
AU7207398A (en) | 1998-10-12 |
WO1998042160A2 (de) | 1998-09-24 |
EP1016317A2 (de) | 2000-07-05 |
JP2002509666A (ja) | 2002-03-26 |
US6385324B1 (en) | 2002-05-07 |
NZ337842A (en) | 2001-01-26 |
ATE218266T1 (de) | 2002-06-15 |
TR199902284T2 (xx) | 1999-12-21 |
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