EP0083310B1 - Elektroakustischer Wandler - Google Patents
Elektroakustischer Wandler Download PDFInfo
- Publication number
- EP0083310B1 EP0083310B1 EP82810561A EP82810561A EP0083310B1 EP 0083310 B1 EP0083310 B1 EP 0083310B1 EP 82810561 A EP82810561 A EP 82810561A EP 82810561 A EP82810561 A EP 82810561A EP 0083310 B1 EP0083310 B1 EP 0083310B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elastomer
- oscillating element
- piece
- metal plate
- frame
- 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
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
- H04R9/066—Loudspeakers using the principle of inertia
Definitions
- Electroacoustic transducers comprising a magnetic carcass with an annular cylindrical air gap and an oscillating element carrying a coil immersed in this air gap, this oscillating element being shaped to allow its attachment to a panel to transmit sound vibrations to it, the carcass constituting a mass of inertia connected to the oscillating element by an elastic piece.
- Transducers of this kind are described, for example, in US Pat. Nos. 3,524,027 and 3,728,497 and French No. 1,514,600.
- British patent No. 1,447,588 shows an electromechanical transformer which can be produced from transducers a commercially available type for actuating loudspeakers and in which a base plate is connected elastically to a magnetic carcass by an annular elastomer ring.
- the invention relates to a transducer of the aforementioned type in which the guidance of the coil in the air gap is excellent, which makes it possible to mount this transducer in any position.
- the oscillating element is constituted by a metal plate carrying a non-ferromagnetic metal cylinder serving as support for the coil, this plate having holes to allow its fixing to said panel, the elastic part being of shape annular, made of elastomer, carried by said metal plate and surrounding the base of a bell-shaped part forming the casing of the carcass to connect it in leaktight manner to said plate and to ensure the centering of the coil in the air gap , the carcass being held axially against the elastomer part by a screw engaged in an axial thread of the central pole of the carcass, the head of this screw resting on a washer in turn resting on a rubber ring, the screw , the washer and the ring being all arranged inside a recess provided in the central part of the metal plate.
- a suspended ceiling is constituted in a manner known per se by panels 1, having on their upper face loops 2 for the passage of hooks 3, themselves fixed to a slab 4, constituting the floor d 'an upper floor.
- This basic metal plate 6 has holes 20 to allow it to be screwed to the wall element (fig. 2).
- the construction of the transducer shown in Figures 2 and 3 is very close to that of a loudspeaker.
- the base metal plate 6 has a cylindrical central part 7 made of non-ferromagnetic material, for example aluminum.
- This cylinder carries a winding 8, the two ends of which are connected to two contact fingers 9 and 9 '.
- the transducer comprises a magnetic carcass comprising a ferromagnetic central part 12 integral with a flange 13, a permanent magnet 14 in the form of a disc, a permanent magnet 15 in the form of an annulus, a part 11 in the form of a bell and a flat metal ring 17.
- the flange 13 is disposed between the magnet 14 in the form of a disc and the magnet 15 of annular shape, an annular part 16 made of non-ferromagnetic material keeping the latter 15 centered relative to the central part 12.
- the magnetic carcass 11 to 17 is connected to the plate 6 by a piece 10 of elastomer.
- This part 10 constitutes a dust-tight annular seal between the plate 6 and the bell-shaped part 11.
- the elastomer part 10 has two internal annular ribs 18 and 19, the first is engaged in a peripheral groove at the base of the skirt of the part 11 in the shape of a bell.
- the base of the part 10 is engaged in a large centering groove 21 provided in the plate 6.
- the cylindrical part 7 and the winding 8 engage in a cylindrical space provided between the central part 12 and the annular part 16 for centering.
- the elastomer part 10 has sufficient flexibility to allow relative axial displacements between the cylinder 7 and the central core 12, while ensuring good radial guidance between this core 12 and the cylinder 7.
- the magnetic carcass with the magnets 14 and 15 constitutes a relatively heavy part, which acts as a mass of inertia, so that the relative displacements between the core 12 and the cylinder 7 transmit vibrations to the plate 6 and therefore to the panels 1 from the suspended ceiling.
- transducers 5 must be connected so as to be in phase with one another.
- transducers can be fixed to any other wall element, this wall can be a wall of the room to be sounded or a wall of a piece of furniture located in this room. Ultimately, a single transducer may be sufficient when the room does not have large dimensions.
- the transducer 5 includes means for exerting a force on the elastomer part 10 so as to modify its elasticity characteristics.
- These means include a central adjustment screw 22 connecting the magnetic casing 11 -17 to the oscillating element 6 - 8.
- the head of the adjustment screw 22 is supported on a washer 23 and the latter in turn is supported on a elastic element consisting of a rubber ring 24 inserted in a recess 25 provided in the central part of the metal plate 6 of the oscillating element 6 - 8.
- the screw 22 engages by its other end in a tapped hole in the part central 12.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82810561T ATE26055T1 (de) | 1981-12-22 | 1982-12-21 | Elektroakustischer wandler. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH819981A CH645227A5 (fr) | 1981-12-22 | 1981-12-22 | Transducteur electro-acoustique. |
CH8199/81 | 1981-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0083310A1 EP0083310A1 (de) | 1983-07-06 |
EP0083310B1 true EP0083310B1 (de) | 1987-03-18 |
Family
ID=4336681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82810561A Expired EP0083310B1 (de) | 1981-12-22 | 1982-12-21 | Elektroakustischer Wandler |
Country Status (6)
Country | Link |
---|---|
US (1) | US4506117A (de) |
EP (1) | EP0083310B1 (de) |
AT (1) | ATE26055T1 (de) |
CA (1) | CA1191937A (de) |
CH (1) | CH645227A5 (de) |
DE (1) | DE3275803D1 (de) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3414407C2 (de) * | 1984-04-17 | 1986-02-20 | Jürgen 6804 Ilvesheim Quaas | Anordnung von Schallwandlern in einer Schallführung, insbesondere für Lautsprecherboxen |
JPS6121699A (ja) * | 1984-07-10 | 1986-01-30 | Pioneer Electronic Corp | 体感音響振動装置 |
US4852444A (en) * | 1986-12-04 | 1989-08-01 | Hoover Alan A | Electro-mechanical transducer which couples positive acoustic feedback into an electric amplified guitar body for the purpose of sustaining played notes |
EA000376B1 (ru) * | 1995-09-02 | 1999-06-24 | Нью Трэнсдьюсерз Лимитед | Преобразователь колебаний |
BR9610436A (pt) * | 1995-09-02 | 1999-02-17 | New Transducers Ltd | Transdutors de vibração inerciais |
US6519349B1 (en) | 1995-09-02 | 2003-02-11 | New Transducers Limited | Loudspeaker |
US6003766A (en) | 1995-09-02 | 1999-12-21 | New Transducers Limited | Vending machine |
US6192136B1 (en) * | 1995-09-02 | 2001-02-20 | New Transducers Limited | Inertial vibration transducers |
KR19990037724A (ko) * | 1995-09-02 | 1999-05-25 | 헨리 에이지마 | 인사카드 및 그 유사카드 |
HUP9900181A3 (en) * | 1995-09-02 | 2001-08-28 | New Transducers Ltd | Loudspeakers comprising panel-form acoustic radiating elements |
UA51671C2 (uk) * | 1995-09-02 | 2002-12-16 | Нью Транзд'Юсез Лімітед | Акустичний пристрій |
US6553124B2 (en) * | 1995-09-02 | 2003-04-22 | New Transducers Limited | Acoustic device |
US6215881B1 (en) * | 1995-09-02 | 2001-04-10 | New Transducers Limited | Ceiling tile loudspeaker |
GB9701983D0 (en) * | 1997-01-31 | 1997-03-19 | New Transducers Ltd | Electro-dynamic exciter |
US6606390B2 (en) * | 1996-09-03 | 2003-08-12 | New Transducer Limited | Loudspeakers |
US6618487B1 (en) | 1996-09-03 | 2003-09-09 | New Transducers Limited | Electro-dynamic exciter |
US6278787B1 (en) * | 1996-09-03 | 2001-08-21 | New Transducers Limited | Loudspeakers |
US6229903B1 (en) * | 1999-06-14 | 2001-05-08 | Citizen Electronics Co., Ltd. | Mounting structure for electromagnetic sound generator |
US6556684B1 (en) * | 2000-03-01 | 2003-04-29 | Watkins Manufacturing Corporation | Spa audio system |
US6329908B1 (en) | 2000-06-23 | 2001-12-11 | Armstrong World Industries, Inc. | Addressable speaker system |
CA2400373C (en) * | 2000-10-17 | 2007-01-02 | Alejandro Jose Pedro Lopez Bosio | Equalizable electro-acoustic device used in commercial panels and method for converting said panels |
US7372968B2 (en) * | 2000-11-08 | 2008-05-13 | New Transducers Limited | Loudspeaker driver |
AU2002346850A1 (en) * | 2002-10-11 | 2004-05-04 | Alejandro Jose Pedro Lopez Bosio | Equalizable active electroacoustic device for panels, and method of converting the panels and assembling the devices |
US20080085029A1 (en) * | 2003-04-29 | 2008-04-10 | Hagman Paul N | In-wall speaker system method and apparatus |
US7292702B2 (en) | 2003-04-29 | 2007-11-06 | Dimensional Communications, Inc. | In-wall speaker system method and apparatus |
US7181038B2 (en) * | 2004-03-10 | 2007-02-20 | Ksc Industries Incorporated | Electro-acoustic transducer |
JP2005311500A (ja) * | 2004-04-19 | 2005-11-04 | Toyota Boshoku Corp | 車両用音響装置 |
US20060013417A1 (en) * | 2004-07-16 | 2006-01-19 | Intier Automotive Inc. | Acoustical panel assembly |
JP4784398B2 (ja) * | 2006-05-29 | 2011-10-05 | パナソニック株式会社 | 音響加振器およびこれを用いたスピーカ |
EP2301259B1 (de) * | 2008-07-17 | 2020-05-13 | Tectonic Audio Labs Inc. | Trägheitsvibrationserreger |
DE102009048866A1 (de) | 2009-08-27 | 2011-03-03 | Bösnecker, Robert, Dr. | Akustisches Antriebselement mit Mittenloch |
JP5314588B2 (ja) * | 2009-12-21 | 2013-10-16 | 株式会社エフ・ピー・エス | 複合スピーカ、音声画像表示装置、および車両用音響システム |
CN202799121U (zh) * | 2012-08-21 | 2013-03-13 | 瑞声声学科技(常州)有限公司 | 振动发声装置 |
DE202014003034U1 (de) * | 2014-04-02 | 2015-04-07 | Harman Becker Automotive Systems Gmbh | Lautsprecher |
RU2556272C2 (ru) * | 2014-04-03 | 2015-07-10 | Закрытое акционерное общество "Защита электронных технологий" | Устройство вибрационного зашумления канала утечки акустической речевой информации |
TWI654020B (zh) | 2014-07-16 | 2019-03-21 | 美商崔賽斯公司 | 用於模型車之內建式聲音系統 |
USD834111S1 (en) | 2014-10-01 | 2018-11-20 | Traxxas Lp | Transducer mount |
US10835924B1 (en) * | 2016-07-25 | 2020-11-17 | SonicSensory, Inc. | Haptic transducer device and insole for receiving the same |
US11666942B2 (en) | 2016-07-25 | 2023-06-06 | Haptech Holdings, Inc. | Haptic transducer and footplate coupled to the same |
US10848874B2 (en) * | 2018-02-20 | 2020-11-24 | Google Llc | Panel audio loudspeaker electromagnetic actuator |
US10587949B1 (en) | 2018-03-28 | 2020-03-10 | Paul N. Hagman | Acoustically tuned face panel for speaker system |
US10841704B2 (en) | 2018-04-06 | 2020-11-17 | Google Llc | Distributed mode loudspeaker electromagnetic actuator with axially and radially magnetized circuit |
GB201820557D0 (en) | 2018-12-17 | 2019-01-30 | Pss Belgium Nv | Inertial exciter |
KR20210125374A (ko) * | 2020-04-08 | 2021-10-18 | 한국전자통신연구원 | 디지털 트윈을 이용한 스마트 축사 시스템 및 방법 |
GB202009203D0 (en) | 2020-06-17 | 2020-07-29 | Pss Belgium Nv | Loudspeaker |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728497A (en) * | 1970-07-06 | 1973-04-17 | A Komatsu | Dynamic loudspeaker using wall as diaphragm |
GB1447588A (en) * | 1973-04-18 | 1976-08-25 | Jagle M | Vibratory dance floor |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE484872C (de) * | 1929-10-26 | Bothe & Bauch | Einrichtung fuer akustische Schaufensterreklame | |
FR556412A (fr) * | 1923-05-09 | 1923-07-20 | Const Electr De Lyon Et Du Dau | Perfectionnements aux téléphones haut-parleurs |
US3366749A (en) * | 1964-04-09 | 1968-01-30 | Allen Alan A | Audio transducer |
US3430007A (en) * | 1966-03-16 | 1969-02-25 | Rolen Diversified Investors In | Dynamic transducer with wall mounted diaphragm |
US3524027A (en) * | 1967-05-04 | 1970-08-11 | Rolen Diversified Investors In | Sound transducer with wall mounted diaphragm |
US3449531A (en) * | 1968-01-09 | 1969-06-10 | William J Ashworth | Electro-mechanical transducer |
US3636281A (en) * | 1969-01-13 | 1972-01-18 | Robert T Cozart | Loudspeaker using wall as diaphragm |
US3801943A (en) * | 1971-06-16 | 1974-04-02 | J Bertagni | Electoacoustic transducers and electromagnetic assembly therefor |
US3925627A (en) * | 1974-06-13 | 1975-12-09 | William J Ashworth | Transducer mounting to sounding board |
-
1981
- 1981-12-22 CH CH819981A patent/CH645227A5/fr not_active IP Right Cessation
-
1982
- 1982-12-15 US US06/450,184 patent/US4506117A/en not_active Expired - Fee Related
- 1982-12-15 CA CA000417770A patent/CA1191937A/fr not_active Expired
- 1982-12-21 AT AT82810561T patent/ATE26055T1/de not_active IP Right Cessation
- 1982-12-21 EP EP82810561A patent/EP0083310B1/de not_active Expired
- 1982-12-21 DE DE8282810561T patent/DE3275803D1/de not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728497A (en) * | 1970-07-06 | 1973-04-17 | A Komatsu | Dynamic loudspeaker using wall as diaphragm |
GB1447588A (en) * | 1973-04-18 | 1976-08-25 | Jagle M | Vibratory dance floor |
Also Published As
Publication number | Publication date |
---|---|
CA1191937A (fr) | 1985-08-13 |
CH645227A5 (fr) | 1984-09-14 |
DE3275803D1 (en) | 1987-04-23 |
ATE26055T1 (de) | 1987-04-15 |
US4506117A (en) | 1985-03-19 |
EP0083310A1 (de) | 1983-07-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0083310B1 (de) | Elektroakustischer Wandler | |
US3093207A (en) | Metallic diaphragm for electrodynamic loudspeakers | |
US20070160238A1 (en) | Bone conduction device | |
FR2503516A1 (fr) | Haut-parleur electrodynamique omnidirectionnel pour les frequences basses et medium du spectre sonore | |
FR2757008A3 (fr) | Base de haut-parleur | |
US20230269538A1 (en) | Coaxial Speaker | |
KR101755329B1 (ko) | 하이브리드 스피커 및 이에 사용되는 진동모듈 | |
US7561704B2 (en) | Structure of speaker | |
FR2765767A1 (fr) | Transducteur electroacoustique tres allonge | |
US20130129120A1 (en) | Speaker | |
US7639830B2 (en) | Apparatus for acoustic loading of a diaphragm | |
JP2006340185A (ja) | スピーカ | |
EP3078211A1 (de) | Elektrodynamischer kompakter lautsprecher mit einer konvexen membran | |
JP3271075B2 (ja) | スピーカユニット | |
FR2674092A3 (fr) | Haut-parleur perfectionne. | |
US1931885A (en) | Resonance box | |
JP4170255B2 (ja) | スピーカ | |
US856038A (en) | Phonograph-reproducer. | |
JP4458358B2 (ja) | スピーカ | |
KR101891230B1 (ko) | 오디오 기기 부착형 슬림 스피커 | |
FR2866777A3 (fr) | Haut-parleur mince | |
JP2004350165A (ja) | スピーカ | |
FR3112445A1 (fr) | Transducteur electroacoustique | |
JPH0419914Y2 (de) | ||
KR200217784Y1 (ko) | 밀폐형 이중진동판을 구비한 스피커 |
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 |
Designated state(s): AT DE FR GB IT NL SE |
|
17P | Request for examination filed |
Effective date: 19831229 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE FR GB IT NL SE |
|
REF | Corresponds to: |
Ref document number: 26055 Country of ref document: AT Date of ref document: 19870415 Kind code of ref document: T |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI & PERANI S.P.A. |
|
REF | Corresponds to: |
Ref document number: 3275803 Country of ref document: DE Date of ref document: 19870423 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19871231 Year of fee payment: 6 |
|
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 | ||
ITTA | It: last paid annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19891221 Ref country code: AT Effective date: 19891221 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19891222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19900701 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19900901 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19911218 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19930831 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
EUG | Se: european patent has lapsed |
Ref document number: 82810561.9 Effective date: 19900830 |