EP0793216A3 - Pressure chamber driver - Google Patents
Pressure chamber driver Download PDFInfo
- Publication number
- EP0793216A3 EP0793216A3 EP97103076A EP97103076A EP0793216A3 EP 0793216 A3 EP0793216 A3 EP 0793216A3 EP 97103076 A EP97103076 A EP 97103076A EP 97103076 A EP97103076 A EP 97103076A EP 0793216 A3 EP0793216 A3 EP 0793216A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure chamber
- membrane
- voice coil
- shaped
- driver
- 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
- 239000012528 membrane Substances 0.000 abstract 4
- 230000001154 acute effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
-
- 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
- H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
-
- 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
- H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Druckkammertreiber, mit einer in einem ringförmigen Luftspalt 2 eines Magnetsystems 1 beweglichen Schwingspule 3 und mit einer von der Schwingspule 3 angetriebenen Membran. Die Membran 5 und die Druckkammer 12 sind ringförmig ausgebildet, und die Druckkammer 12 steht über ihren Umfang mit einem zentralen Schallaustrittskanal 14 in Verbindung. Die Membran 5 hat aufgrund ihrer ringförmigen Ausbildung eine große wirksame Fläche bei gleichzeitig geringer Masse. Die Speiseleistung ist daher verhältnismäßig gering, die Resonanzfrequenz ist hoch, und damit ist auch die Wiedergabetreue hoher Frequenzen verbessert. Dies ist insbesondere dann der Fall, wenn die Membran im Querschnitt V-förmig, vorzugsgweise zu dem von ihr eingeschlossenen spitzen Winkel hin gewölbt ausgebildet ist. Pressure chamber driver, with a voice coil 3 movable in an annular air gap 2 of a magnet system 1 and with a membrane driven by the voice coil 3. The membrane 5 and the pressure chamber 12 are ring-shaped, and the pressure chamber 12 communicates with a central sound outlet channel 14 over its circumference. The membrane 5 has a large effective area with a low mass due to its annular design. The feed power is therefore relatively low, the resonance frequency is high, and thus the fidelity of high frequencies is also improved. This is particularly the case when the membrane is V-shaped in cross-section, preferably arched toward the acute angle enclosed by it.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19607610 | 1996-02-29 | ||
DE19607610 | 1996-02-29 | ||
DE19626236A DE19626236C2 (en) | 1996-02-29 | 1996-06-29 | Pressure chamber driver |
DE19626236 | 1996-06-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0793216A2 EP0793216A2 (en) | 1997-09-03 |
EP0793216A3 true EP0793216A3 (en) | 1999-11-17 |
EP0793216B1 EP0793216B1 (en) | 2003-11-19 |
Family
ID=26023324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97103076A Expired - Lifetime EP0793216B1 (en) | 1996-02-29 | 1997-02-26 | Pressure chamber driver |
Country Status (3)
Country | Link |
---|---|
US (1) | US5878148A (en) |
EP (1) | EP0793216B1 (en) |
ES (1) | ES2210407T3 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6466680B1 (en) * | 1999-10-19 | 2002-10-15 | Harman International Industries, Inc. | High-frequency loudspeaker module for cinema screen |
ITPR20020064A1 (en) * | 2002-10-31 | 2004-05-01 | Aeb Srl | EQUALIZER, OR PHASE PLUG, FOR ELECTROACOUSTIC TRANSDUCERS. |
US20080192972A1 (en) * | 2007-02-13 | 2008-08-14 | Vernon Lewallen | Phasing plug for acoustic compression drivers |
GB2455563B (en) * | 2007-12-14 | 2012-03-21 | Tannoy Ltd | Acoustical horn |
US8280091B2 (en) * | 2008-06-11 | 2012-10-02 | Harman International Industries, Incorporated | Dual compression drivers and phasing plugs for compression drivers |
US8077897B2 (en) | 2008-06-11 | 2011-12-13 | Harman International Industries, Incorporated | Phasing plug |
JP5268203B2 (en) * | 2008-08-14 | 2013-08-21 | ハーマン インターナショナル インダストリーズ インコーポレイテッド | Phase plug and acoustic lens for direct radiating loudspeakers |
DE102010015445B4 (en) | 2010-04-17 | 2012-10-25 | Arne Färber | Coaxial |
DE102012102207B3 (en) | 2012-03-15 | 2013-08-29 | BMS Speakers GmbH | Ring diaphragm compression driver |
US9693148B1 (en) | 2014-08-08 | 2017-06-27 | Lrad Corporation | Acoustic hailing device |
US10271131B2 (en) | 2014-10-08 | 2019-04-23 | Harman International Industries, Incorporated | Shallow profile compression driver |
CN104811874B (en) * | 2015-03-16 | 2017-11-03 | 朱幕松 | W type loudspeakers |
US10038954B2 (en) | 2016-08-22 | 2018-07-31 | Harman International Industries, Incorporated | Compression driver and phasing plug assembly therefor |
US10327068B2 (en) * | 2017-11-16 | 2019-06-18 | Harman International Industries, Incorporated | Compression driver with side-firing compression chamber |
US11611830B2 (en) | 2018-09-19 | 2023-03-21 | Polk Audio, Llc | Audio transducer with forced ventilation of motor and method |
WO2024153833A1 (en) | 2023-01-18 | 2024-07-25 | Estudio De Asesoramiento Jofarma, S.L.U. | Electrodynamic compression transducer with variable-pressure channels |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124413A (en) * | 1977-12-02 | 1978-10-30 | Nippon Gakki Seizo Kk | Horn type speaker |
GB2070389A (en) * | 1980-01-30 | 1981-09-03 | Radio Cine Forniture Rcf Spa | Electroacoustic transducer |
US4325456A (en) * | 1980-10-10 | 1982-04-20 | Altec Corporation | Acoustical transformer for compression-type loudspeaker with an annular diaphragm |
EP0390123A2 (en) * | 1989-03-31 | 1990-10-03 | Kabushiki Kaisha Kenwood | Nondirectional acoustic generator and speaker system |
EP0749265A1 (en) * | 1995-06-16 | 1996-12-18 | P.H.L. Audio S.A. | High frequency loudspeaker |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2607198C2 (en) * | 1976-02-23 | 1984-02-16 | Fernsprech- und Signalbau Lehner & Co KG, 4330 Mülheim | Dynamic drive system for pressure chamber loudspeakers |
US4496021A (en) * | 1983-02-18 | 1985-01-29 | Emmanuel Berlant | 360 Degree radial reflex orthospectral horn for high-frequency loudspeakers |
FR2607344B1 (en) * | 1986-11-21 | 1994-04-29 | Nexo Distribution | DEVICE FOR PROCESSING AN AUDIO FREQUENCY ELECTRIC SIGNAL |
GB8724299D0 (en) * | 1987-10-16 | 1987-11-18 | Adamson Acoustic Design Corp | Loudspeaker design |
US5537481A (en) * | 1994-04-05 | 1996-07-16 | The Aws Group, Inc. | Horn driver |
DE4420960A1 (en) * | 1994-06-16 | 1995-12-21 | Bosch Gmbh Robert | Pump device, in particular for a tank system of an internal combustion engine |
-
1997
- 1997-02-10 US US08/797,836 patent/US5878148A/en not_active Expired - Lifetime
- 1997-02-26 ES ES97103076T patent/ES2210407T3/en not_active Expired - Lifetime
- 1997-02-26 EP EP97103076A patent/EP0793216B1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124413A (en) * | 1977-12-02 | 1978-10-30 | Nippon Gakki Seizo Kk | Horn type speaker |
GB2070389A (en) * | 1980-01-30 | 1981-09-03 | Radio Cine Forniture Rcf Spa | Electroacoustic transducer |
US4325456A (en) * | 1980-10-10 | 1982-04-20 | Altec Corporation | Acoustical transformer for compression-type loudspeaker with an annular diaphragm |
EP0390123A2 (en) * | 1989-03-31 | 1990-10-03 | Kabushiki Kaisha Kenwood | Nondirectional acoustic generator and speaker system |
EP0749265A1 (en) * | 1995-06-16 | 1996-12-18 | P.H.L. Audio S.A. | High frequency loudspeaker |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 002, no. 154 (E - 080) 25 December 1978 (1978-12-25) * |
Also Published As
Publication number | Publication date |
---|---|
EP0793216B1 (en) | 2003-11-19 |
ES2210407T3 (en) | 2004-07-01 |
US5878148A (en) | 1999-03-02 |
EP0793216A2 (en) | 1997-09-03 |
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