FR3122023B1 - Haut-parleur micrométrique - Google Patents
Haut-parleur micrométrique Download PDFInfo
- Publication number
- FR3122023B1 FR3122023B1 FR2103908A FR2103908A FR3122023B1 FR 3122023 B1 FR3122023 B1 FR 3122023B1 FR 2103908 A FR2103908 A FR 2103908A FR 2103908 A FR2103908 A FR 2103908A FR 3122023 B1 FR3122023 B1 FR 3122023B1
- Authority
- FR
- France
- Prior art keywords
- blades
- mechanical
- loudspeaker
- micrometric
- 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.)
- Active
Links
- 238000005452 bending Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
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- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/24—Tensioning by means acting directly on free portions of diaphragm or cone
-
- 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
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
- G10K9/125—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means with a plurality of active elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
- B06B1/0629—Square array
-
- 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
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
- H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
- H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/003—Mems transducers or their use
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2207/00—Details of diaphragms or cones for electromechanical transducers or their suspension covered by H04R7/00 but not provided for in H04R7/00 or in H04R2307/00
- H04R2207/021—Diaphragm extensions, not necessarily integrally formed, e.g. skirts, rims, flanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
Titre : Haut-parleur micrométrique L’invention concerne un haut-parleur micrométrique (1) comprenant : Un cadre (11), Un transducteur électromécanique, et Un transducteur mécano-acoustique comprenant une plaque rigide (131) montée mobile dans le cadre, le transducteur électromécanique comprend deux actionneurs piézoélectriques (121a, 121b) et deux lames élastiques (122a, 122b), le cadre comprend une traverse centrale (111) depuis laquelle s’étendent les deux lames jusqu’à mettre en prise deux rebords latéraux de couplage (132a, 132b) du transducteur mécano-acoustique, le transducteur mécano-acoustique comprend deux ressorts de linéarisation (133a, 133b) s’étendant chacun depuis un des rebords latéraux jusqu’à la plaque rigide, pour permettre, lors d’une déformation des lames, un déplacement des deux rebords latéraux vers la traverse centrale et réduire les contraintes longitudinales appliquées aux lames lors de leur déformation du fait de leur configuration de flexion « encastrée-guidée ». Le haut-parleur présente des performances satisfaisantes, notamment en termes de largeur de bande passante et/ou de niveau de pression produit. Figure pour l’abrégé : Fig. 6
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2103908A FR3122023B1 (fr) | 2021-04-15 | 2021-04-15 | Haut-parleur micrométrique |
EP22168299.0A EP4075422A1 (fr) | 2021-04-15 | 2022-04-14 | Haut-parleur micrométrique |
US17/721,950 US11785391B2 (en) | 2021-04-15 | 2022-04-15 | Micrometric loudspeaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2103908A FR3122023B1 (fr) | 2021-04-15 | 2021-04-15 | Haut-parleur micrométrique |
FR2103908 | 2021-04-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3122023A1 FR3122023A1 (fr) | 2022-10-21 |
FR3122023B1 true FR3122023B1 (fr) | 2023-12-29 |
Family
ID=76034832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2103908A Active FR3122023B1 (fr) | 2021-04-15 | 2021-04-15 | Haut-parleur micrométrique |
Country Status (3)
Country | Link |
---|---|
US (1) | US11785391B2 (fr) |
EP (1) | EP4075422A1 (fr) |
FR (1) | FR3122023B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE546029C2 (en) * | 2022-12-22 | 2024-04-16 | Myvox Ab | A mems-based micro speaker device and system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8989412B2 (en) * | 2009-05-25 | 2015-03-24 | Panasonic Intellectual Property Management Co., Ltd. | Piezoelectric acoustic transducer |
CN103477656B (zh) * | 2012-02-15 | 2018-04-27 | 松下知识产权经营株式会社 | 扬声器 |
DE102014106753B4 (de) | 2014-05-14 | 2022-08-11 | USound GmbH | MEMS-Lautsprecher mit Aktuatorstruktur und davon beabstandeter Membran |
FR3090613B1 (fr) | 2018-12-20 | 2021-01-22 | Commissariat Energie Atomique | Articulation pour systemes micro et nanoelectromecaniques a deplacement hors-plan offrant une non-linearite reduite |
CN111918179B (zh) * | 2020-07-10 | 2021-07-09 | 瑞声科技(南京)有限公司 | 发声装置及具有其的电子设备 |
-
2021
- 2021-04-15 FR FR2103908A patent/FR3122023B1/fr active Active
-
2022
- 2022-04-14 EP EP22168299.0A patent/EP4075422A1/fr active Pending
- 2022-04-15 US US17/721,950 patent/US11785391B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP4075422A1 (fr) | 2022-10-19 |
US20220337954A1 (en) | 2022-10-20 |
FR3122023A1 (fr) | 2022-10-21 |
US11785391B2 (en) | 2023-10-10 |
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Year of fee payment: 2 |
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