EP4179736B1 - Elektrodynamischer wandler für fahrzeug - Google Patents

Elektrodynamischer wandler für fahrzeug Download PDF

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Publication number
EP4179736B1
EP4179736B1 EP21743157.6A EP21743157A EP4179736B1 EP 4179736 B1 EP4179736 B1 EP 4179736B1 EP 21743157 A EP21743157 A EP 21743157A EP 4179736 B1 EP4179736 B1 EP 4179736B1
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EP
European Patent Office
Prior art keywords
suspension means
transducer
springs
transducer according
basic
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.)
Active
Application number
EP21743157.6A
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English (en)
French (fr)
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EP4179736A1 (de
Inventor
Jean-Philippe Thome
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Treves Audio SAS
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Treves Audio SAS
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Filing date
Publication date
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Publication of EP4179736A1 publication Critical patent/EP4179736A1/de
Application granted granted Critical
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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • 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
    • H04R9/025—Magnetic circuit
    • 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/07—Suspension between moving magnetic core and housing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • 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
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia

Definitions

  • the present invention relates to an electrodynamic transducer and a trim element for a motor vehicle compartment provided with such a transducer.
  • a transducer is known from US 2019/111840 A1 for use in a vehicle.
  • a transducer with first and second axially offset suspension means is known from WO 2020/126847 .
  • a vehicle compartment trim element is also shown in EP 1 210 846 B1 .
  • transduction is the operation allowing one physical quantity to be transformed into another, using a transducer which transforms the energy received in a given form, for example electrical energy, into usable energy in a different form, for example acoustic.
  • a trim element as mentioned above is, for example, a bay pillar trim, a luggage compartment cover shelf, an under-seat carpet, a headliner, a door trim, etc.
  • the movement of the magnetic mass should only be an axial translation movement, that is to say along the axis of symmetry mentioned above.
  • the invention makes it possible, by using suspension means thus arranged, to have a suspended magnetic mass which can only move in axial translation.
  • the invention relates to a trim element for a motor vehicle compartment provided with such a transducer.
  • At least one and in particular both the internal 22 and external 24 parts are annular.
  • suspension means 19a, 19b are provided with at least three elementary springs 25 - said means being in particular provided with four of said springs according to the embodiment shown.
  • FIG. 1 is a representation of a transducer 1, according to an embodiment of the invention, in position on a wall 2.
  • the fixing on the wall 2 of the transducer 1 is carried out, preferably in a removable manner, using a base 3.
  • the base 3 is itself permanently or removably secured to the wall 2.
  • the base 3 is provided with at least one fixing member, for example an adhesive zone, a magnet, holes for passing screws or points.
  • at least one fixing member for example an adhesive zone, a magnet, holes for passing screws or points.
  • the base 3 comprises a means for fixing the transducer.
  • the fixing means is a clip.
  • transducer 1 extends above wall 2.
  • the base 3 is housed in a counterbore made in the wall 2, so that when the transducer 1 is in position on said wall, its upper face is substantially coplanar with said wall.
  • the transducer 1 is not visible, being incorporated in the wall 2.
  • the chassis 5 is made of rigid material insensitive to the magnetic field, being in particular, as specified above, made of molded plastic material.
  • the chassis 5 is equipped with a fixing part 6 on the base 3.
  • This part 6 is of a configuration complementary to the relief 4 of the base 3. In this case, it is cylindrical and provided with an internal thread 42.
  • the frame 5 has a general U shape in section. It can be of another shape provided that it includes a housing for receiving the magnetic mass 11.
  • This housing comprises a flat bottom 7 equipped with a hollow cylindrical mandrel 8 with a circular base.
  • the mandrel 8 is in a central position on the bottom 7 and it is fixed on the latter; advantageously it is integral with the bottom 7, for example by molding or machining; as a variant, it is glued or welded.
  • a coil 9 is wound around the mandrel 8.
  • This coil 9 is formed of a metal wire, in particular copper.
  • the mandrel 8 equipped with the coil 9 is inserted into an air gap 10 of complementary shape formed in a magnetic mass 11 in two parts.
  • a first part is a cylindrical core of soft iron 12 with a circular base of dimensions adapted to be inserted in a movably manner, with minimal play, in the lumen of the mandrel 8.
  • the length of the core 12 is greater than the length of the mandrel 8, so that a portion of said core 12 extends above the open end of the mandrel 8, as is apparent from the figures 1 And 8 .
  • the cylindrical part 14 has dimensions and a shape such that it holds the magnet 13 while covering the core 12.
  • Magnet 13 is a permanent magnet composed for example of an alloy of neodymium, iron and boron.
  • the core 12, the cylindrical part 14 and the magnet 13 are coaxial and concentric. Their common axis A is aligned with the center of the bottom 7.
  • the axis A is materialized by the central longitudinal axis of a cylindrical orifice 15 called a decompression orifice extending over the height of the core 12 and passing through the portion of the cylindrical part 14 located above said core.
  • the outer wall of the core 12 and the inner wall of the magnet lumen 13 and the cylindrical part 14 define the air gap 10.
  • the coil 9 is inserted into the air gap 10 between the parts 12, 13, 14 constituting the magnetic mass 11, this with minimal play.
  • the magnetic mass 11, formed by the core 12 and the magnet 13 embedded in the cylindrical part 14, is generally in the shape of a disk with a thickness close to the height of the chassis 5.
  • the parts 12, 13, 14 constituting the magnetic mass 11 are held together by known means, for example by screwing, gluing, welding.
  • the parts 12, 14 are single-piece and obtained by machining or molding, the magnet 13 being force-fitted into a housing provided in the part 14.
  • the external walls 16 of the cylindrical part 14 and the internal walls 17 of the chassis 5 are parallel to each other but without contact, thus providing a clearance 18 between them.
  • the magnetic mass 11 is movable relative to the chassis 5, thanks to the clearance 18 and the air gap 10, the mandrel 8 not being fixed to the core 12 and to the coil 9. In other words, the magnetic mass 11 is suspended in the chassis 5.
  • Suspension means 19a, 19b ensure that the magnetic mass 11 is kept suspended in the chassis 5.
  • the suspension means 19a, 19b are parallel to each other. They are arranged parallel to the bottom 7 of the chassis 5, therefore perpendicular to the axis A when the magnetic mass 11 is in place in said chassis.
  • the suspension means 19a, 19b are held, on the one hand, on the internal wall 17 of the chassis 5 and, on the other hand, on the cylindrical part 14.
  • suspension means 19a, 19b pass through the external wall 16 and extend to the annular magnet 13.
  • the suspension means 19a, 19b are fixed to the chassis 5 and to the magnetic mass 11 by means known per se, here by screws 20 inserted into orifices 51.
  • the suspension means 19a, 19b thus extend across the entire clearance 18 and they maintain the magnetic mass 11 in suspension relative to the chassis 5, allowing translational movements, alternately in one direction and in the other, with variable amplitudes, of said magnetic mass relative to the mandrel 8, in a direction coincident with the axis A, as illustrated by the double arrow F at figure 8 .
  • an elementary spring 25 is surrounded by an external U-shaped slot 50 extending between its two second ends 32, 33 passing through the connecting bridge 29.
  • the internal slot 28 of an elementary spring 25 extends between its two second ends 32, 33 to open into the external slot 50 of the contiguous elementary spring 25 which is arranged opposite the direction of orientation S1, S2 of said springs.
  • the second ends 32, 33 are located radially perpendicular to one another.
  • Segments 26,27 then have the same angular extent along axis A, and therefore an analogous length, allowing an axial translation not accompanied by an axial rotation.
  • the suspension means 19a, 19b are in the general shape of flattened circular rings defining a slot 21 and generally falling within two planes perpendicular to the axis of symmetry A.
  • the suspension means 19a, 19b are located respectively at each of the ends of the magnet 13, so as to maximize the distance between them and to avoid, in lateral view, any parasitic movement of non-axial rotation of the magnetic mass 11 when the transducer 1 is in use.
  • the suspension means 19a, 19b come from two cut metal plates.
  • the suspension means 19a, 19b are made of molded plastic material, said material being able to be loaded with fibers.
  • they can be integrated into a single molded part so as to form a single-piece assembly.
  • suspension means 19a, 19b are made from cut cardboard.
  • the suspension means 19a, 19b are made of composite material.
  • a protective cover 38 covers the active part of the transducer 1.
  • the suspension means 19a, 19b being in particular made of molded plastic material, the segments 26, 27 have a thickness 40 which becomes thinner as one moves towards the bridge 29.
  • the suspension means 19a, 19b being in particular made of molded plastic material, the segments 26, 27 have a width 39 which becomes thinner as one moves towards the bridge 29.
  • the elementary springs 25 are given an evolving stiffness allowing the inertial force of the magnetic mass 11 to be transmitted with maximum efficiency to the wall 2 to be vibrated.
  • the transducer 1 further comprises a ring 35 for adjusting the stiffness of at least one suspension means 19a, 19b, said ring being rotatably mounted on the magnetic mass 11, said ring comprising a plurality of sliders 37 bearing on the elementary springs 25 to define the length of the lever arm of the segments 26, 27 and the resulting stiffness.
  • a ring 35 made of a rigid material, for example polymer, is used.
  • the ring 35 is provided, on its face 36 oriented towards the suspension means 19a, 19b, with several sliders 37 each bearing on a respective spring 25.
  • the sliders 37 are introduced by a sliding projection into the slots 28, 50.
  • the elementary springs 25 are stiffened more or less, by adjusting the length of the lever arm of each of the segments 26, 27; to adjust the position of the sliders 37, it is sufficient to turn the ring 35 clockwise or counterclockwise.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Vibration Prevention Devices (AREA)

Claims (13)

  1. Elektrodynamischer Wandler (1), umfassend:
    - einen festen Teil, der einen Rahmen (5) umfasst, der mit einem hohlen Dorn (8) versehen ist, der in einer zylindrischen Hülle liegt, die sich entlang einer Symmetrieachse (A) erstreckt, wobei eine Spule (9) um den Dorn gewickelt ist,
    - einen beweglichen Teil, der eine magnetische Masse (11) umfasst, wobei die Masse umfasst:
    -- ein zylindrisches Metallstück (14), das eine Aufnahme definiert,
    -- einen ringförmigen Permanentmagneten (13) in Form eines Hohlzylinders, der in dem zylindrischen Stück befestigt ist und die Spule umgibt,
    -- einen zylindrischen Kern (12) aus Weicheisen, der am zylindrischen Stück befestigt ist und im Inneren des Dorns liegt, wobei die Spule in dem Luftspalt (10), der zwischen dem Magneten und dem Kern ausgestaltet ist, positioniert ist,
    wobei die magnetische Masse über ein erstes (19a) und ein zweites (19b) Aufhängungsmittel (19), die axial versetzt sind, mit dem Rahmen verbunden ist, wobei die Mittel eine Auslenkung der Masse in axialer Verschiebung in Bezug auf den Rahmen ermöglichen, wobei der Wandler dadurch gekennzeichnet ist, dass:
    - jedes der Aufhängungsmittel eine Vielzahl von Elementarfedern (25) aufweist, wobei die Federn gemäß einer Rotationssymmetrie um die Achse zwischen einem inneren Teil (22) des Mittels, der fest mit der magnetischen Masse verbunden ist, und einem äußeren Teil (24) des Mittels, der fest mit dem Rahmen verbunden ist, angeordnet sind, wobei die Teile mittels der Elementarfedern zueinander axial verschiebebeweglich sind,
    - die Elementarfedern ein inneres Segment (26) und ein äußeres Segment (27) umfassen, wobei sich die Segmente gemäß zwei konzentrischen Kreisbögen um die Achse erstrecken und durch einen Schlitz (28) getrennt sind, wobei die Segmente zwei jeweilige erste Enden (30, 31) aufweisen, die über eine Verbindungsbrücke (29) verbunden sind, wobei das innere Segment über ein zweites Ende (32) fest mit dem inneren Teil verbunden ist und das äußere Segment ein anderes zweites Ende (33) aufweist, das fest mit dem äußeren Teil verbunden ist, wobei der Weg, der von den zweiten Enden zur Verbindungsbrücke verläuft, eine Orientierungsrichtung (S1, S2) der Elementarfedern definiert,
    - die Orientierungsrichtung (S1) der Elementarfedern des ersten Aufhängungsmittels derjenigen (S2) der Elementarfedern des zweiten Aufhängungsmittels entgegengesetzt ist, sodass jedes der Aufhängungsmittel das andere der Aufhängungsmittel in axialer Drehung blockiert.
  2. Wandler nach Anspruch 1, dadurch gekennzeichnet, dass mindestens einer des inneren (22) und des äußeren (24) Teils ringförmig ist.
  3. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass eine Elementarfeder (25) von einem äußeren U-förmigen Schlitz (50) umgeben ist, der sich zwischen ihren zwei zweiten Enden (32, 33) erstreckt, wobei er über die Verbindungsbrücke (29) verläuft.
  4. Wandler nach Anspruch 3, dadurch gekennzeichnet, dass sich der innere Schlitz (28) einer Elementarfeder (25) zwischen ihren zwei zweiten Enden (32, 33) erstreckt, um in den äußeren Schlitz (50) der angrenzenden Elementarfeder (25), die der Orientierungsrichtung (S1, S2) der Federn entgegengesetzt angeordnet ist, zu münden.
  5. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass:
    - das äußere Segment (27) nur über sein zweites Ende (33) mit dem äußeren Teil (24) verbunden ist,
    - das innere Segment (26) nur über sein zweites Ende (32) mit dem inneren Teil (22) verbunden ist,
    - die Segmente nur über die Verbindungsbrücke (29) miteinander verbunden sind.
  6. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die zweiten Enden (32, 33) radial lotrecht zueinander liegen.
  7. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Aufhängungsmittel (19a, 19b) allgemein die Form von abgeflachten kreisförmigen Ringen aufweisen, die ein Lumen (21) definieren und allgemein in zwei Ebenen senkrecht zur Symmetrieachse (A) liegen.
  8. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass sich die Aufhängungsmittel (19a, 19b) jeweils im Bereich jedes der Enden des Magneten (13) befinden.
  9. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Aufhängungsmittel (19a, 19b):
    - aus zwei gestanzten Metallplatten stammen,
    - oder aus geformtem Kunststoffmaterial,
    - oder auf Basis von gestanztem Karton,
    - oder aus Verbundmaterial sind.
  10. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Segmente (26, 27) eine Dicke (40) aufweisen, die dünner wird, je weiter man auf die Brücke (29) zugeht.
  11. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Segmente (26, 27) eine Breite (39) aufweisen, die dünner wird, je weiter man auf die Brücke (29) zugeht.
  12. Wandler nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass er weiter einen Ring (35) zum Einstellen der Steifigkeit mindestens eines Aufhängungsmittels (19a, 19b) umfasst, wobei der Ring drehbar an der magnetischen Masse (11) angebracht ist, wobei der Ring eine Vielzahl von Schiebern (37) umfasst, die jeweils auf den Elementarfedern (25) aufliegen, um die Hebelarmlänge der Segmente (26, 27) und die sich daraus ergebende Steifigkeit zu definieren.
  13. Verkleidungselement für einen Fahrgastraum eines Kraftfahrzeugs, das mit mindestens einem Wandler (1) nach einem der vorstehenden Ansprüche versehen ist, wobei das Element umfasst:
    - eine Wand (2) zur Befestigung des Wandlers,
    - einen Sockel (3), der an der Wand befestigt ist, wobei der Rahmen (5) dem Sockel zugeordnet ist.
EP21743157.6A 2020-07-09 2021-07-08 Elektrodynamischer wandler für fahrzeug Active EP4179736B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007289A FR3112445B1 (fr) 2020-07-09 2020-07-09 Transducteur electroacoustique
PCT/EP2021/069063 WO2022008685A1 (fr) 2020-07-09 2021-07-08 Transducteur electrodynamique

Publications (2)

Publication Number Publication Date
EP4179736A1 EP4179736A1 (de) 2023-05-17
EP4179736B1 true EP4179736B1 (de) 2024-08-28

Family

ID=73013584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21743157.6A Active EP4179736B1 (de) 2020-07-09 2021-07-08 Elektrodynamischer wandler für fahrzeug

Country Status (7)

Country Link
US (1) US20230254647A1 (de)
EP (1) EP4179736B1 (de)
CN (1) CN116195272A (de)
ES (1) ES3005232T3 (de)
FR (1) FR3112445B1 (de)
HU (1) HUE069679T2 (de)
WO (1) WO2022008685A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4473952A1 (de) 2023-06-08 2024-12-11 Jean-Philippe Thome Vorrichtung zur verhinderung von dekubitus, möbelträgerelement mit einer solchen vorrichtung und verfahren zum bestücken eines trägerelements mit einer solchen vorrichtung
EP4474265A1 (de) 2023-06-08 2024-12-11 Jean-Philippe Thome Kommunizierende tauchermaske
EP4478734A1 (de) 2023-06-13 2024-12-18 Jean-Philippe Thome Vorrichtung zur beschallung eines beckens, becken mit einer solchen vorrichtung und verfahren zur schallabgabe aus einer solchen vorrichtung

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US5764784A (en) * 1994-09-12 1998-06-09 Sanyo Electric Co., Ltd. Electroacoustic transducer
US6385327B1 (en) * 1998-06-16 2002-05-07 U.S. Philips Corporation Device having two coaxially disposed bodies which are movable relative to one another along a translation axis
US7050593B1 (en) * 1999-08-25 2006-05-23 Lear Corporation Vehicular audio system and electromagnetic transducer assembly for use therein
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US20050099255A1 (en) * 2000-08-18 2005-05-12 Fan Zhang Transducer with dual coil and dual magnetic gap
US7418108B2 (en) * 2004-02-19 2008-08-26 So Sound Solutions, Llc Transducer for tactile applications and apparatus incorporating transducers
CN1893734A (zh) * 2005-07-07 2007-01-10 深圳市律和声频科技有限公司 扬声器弹波
US7538463B2 (en) * 2006-01-10 2009-05-26 Citizen Electronics Co., Ltd. Vibrator
JP4850245B2 (ja) * 2006-05-24 2012-01-11 パナソニック株式会社 電気機械音響変換器の実装構造
JP2008017461A (ja) * 2006-06-06 2008-01-24 Citizen Electronics Co Ltd 動電型エキサイタ
WO2010076656A2 (en) * 2008-12-31 2010-07-08 Robert Katz Improved inertial type acoustic transducer
EP2608574B1 (de) * 2011-12-19 2014-08-06 Oticon Medical A/S Anpassbare Federanordnung für einen Vibrator eines knochenverankerten Hörgerätes
KR101855335B1 (ko) * 2016-07-01 2018-05-08 주식회사 예일전자 차체를 이용하여 소리를 발생시키는 장치
DE102016225716A1 (de) * 2016-12-21 2018-06-21 Robert Bosch Gmbh Elektrischer Schwingungserreger zur Schallerzeugung, Verfahren zur Herstellung eines elektrischen Schwingungserregers sowie Kraftfahrzeug mit einem elektrischen Schwingungserreger
GB201820557D0 (en) * 2018-12-17 2019-01-30 Pss Belgium Nv Inertial exciter

Also Published As

Publication number Publication date
US20230254647A1 (en) 2023-08-10
WO2022008685A1 (fr) 2022-01-13
CN116195272A (zh) 2023-05-30
HUE069679T2 (hu) 2025-04-28
FR3112445B1 (fr) 2023-05-12
EP4179736A1 (de) 2023-05-17
ES3005232T3 (en) 2025-03-14
FR3112445A1 (fr) 2022-01-14

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