WO2021176483A1 - Émetteur acoustique - Google Patents

Émetteur acoustique Download PDF

Info

Publication number
WO2021176483A1
WO2021176483A1 PCT/IT2020/000030 IT2020000030W WO2021176483A1 WO 2021176483 A1 WO2021176483 A1 WO 2021176483A1 IT 2020000030 W IT2020000030 W IT 2020000030W WO 2021176483 A1 WO2021176483 A1 WO 2021176483A1
Authority
WO
WIPO (PCT)
Prior art keywords
acoustic transmitter
transmitter according
membrane
assembled configuration
disk
Prior art date
Application number
PCT/IT2020/000030
Other languages
English (en)
Inventor
Maurizio Mariani
Original Assignee
Idea Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Idea Srl filed Critical Idea Srl
Priority to PCT/IT2020/000030 priority Critical patent/WO2021176483A1/fr
Publication of WO2021176483A1 publication Critical patent/WO2021176483A1/fr

Links

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound
    • 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
    • H04R7/04—Plane diaphragms
    • 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
    • H04R9/02—Details

Definitions

  • the present invention relates to an acoustic transmitter.
  • An acoustic transmitter is a transducer or a group of transducers that convert an electrical signal, originating from an audio amplifier, to sound waves.
  • Conventional acoustic diffusers take advantage of the ability to convert an electrical signal (by way of an adapted electromagnet) to vibrations.
  • Traditional diffusers have a vibrating membrane adapted to produce and diffuse sound waves: among these are loudspeakers and traditional sound diffusers.
  • a further type of diffuser exists which instead operates on the principle of transferring the vibrations produced by the electromagnet to architectural components (walls, windows, structural elements etc.) and furnishings (furniture, furnishing accessories and the like), using them to generate and diffuse sound waves.
  • This last type of diffuser in order to meet the current needs of architects, designers and interior designers, generally has very small dimensions so as to make each individual diffuser inconspicuous or concealable in walls, ceilings, shop windows and the like, in order to not interfere aesthetically with the surrounding environment.
  • Such devices are constituted by the assembly of numerous components of small dimensions which must be coupled in rapid succession and inserted into the enclosure, generally cylindrical, that contains them.
  • the complexity of construction constitutes a limitation, not only during the step of production, where perfect alignment in predefined positions of one component with respect to the next is required, but also, and in particular, in the maintenance operations on the device.
  • the main aim of the present invention is to solve the above mentioned drawbacks, by providing an acoustic transmitter that is easy and economic to provide.
  • an object of the invention is to provide an acoustic transmitter that entails a minimal number of steps for its provision.
  • Another object of the present invention is to provide an acoustic transmitter that is of low cost, easily and practically implemented and safe in use.
  • an acoustic transmitter intended to be coupled to a rigid surface, which is characterized in that it comprises an enclosure constituted by a base plate surmounted by a tubular body and a cover, the following components being accommodated in said enclosure:
  • said components having a through central hole which is coaxial with the axis of said tubular body, a fastening pin is configured to be arranged in said holes, in the assembled configuration said pin being engaged in a threaded cavity of said plate for the mutual and stable compaction of said components inside said enclosure.
  • Figure 1 is a perspective view from above of the acoustic transmitter according to the invention.
  • Figure 2 is a perspective view from below of the acoustic transmitter according to the invention.
  • Figure 3 is an exploded perspective view from above of the acoustic transmitter, according to the invention.
  • Figure 4 is an exploded front elevation view of the acoustic transmitter, according to the invention.
  • the reference numeral 1 generally designates an acoustic transmitter meant to be coupled to rigid surface.
  • Such surfaces can be of the type of walls, ceilings, windows, sideboards, tables and the like.
  • the transmitter 1 comprises an enclosure 2 constituted by a base plate 3 surmounted by a tubular body 4 and a cover 5.
  • Such components have a through central hole 10 which is coaxial with the axis of the tubular body 4.
  • a fastening pin 11 is configured to be arranged in the holes 10.
  • the pin 11 is engaged in a threaded cavity 12 of the plate 3 for mutually and stably compacting the components inside the enclosure 2.
  • the operator will simply need to take the pin 11, with its head directed downward, and thread it, in rapid succession, through the respective holes 10 of all the components, starting from the first membrane 6 up to the second membrane 9.
  • the assembly thus constituted is to be turned over, the tubular body 4 is to be fitted on the plate 3, and the cover 5 is to be screwed onto the body 4.
  • the components can be mutually coupled by interlocking by way of respective mating seats and projections that are defined on their surfaces.
  • the particular structure of every single component enables a coupling that is restricted to only one possible configuration, thus effectively not making possible an incorrect assembly.
  • the first elastic membrane 6 can be substantially circular in shape and can comprise an outer crown 13 connected to an inner crown 14 by respective undulating elastic elements 15 which are substantially radial.
  • Such outer crown 13 can have a ridge 16 above, along all of its rim, and a tooth 17 below.
  • the inner crown 14 can protrude downward, with respect to the outer crown 13, and be provided with two lateral bevels 18.
  • the electromagnet 7 can be surmounted by a first spacer disk 19, for spacing apart from a terminal board 20 which is provided with respective electrical contacts, and by a second spacer disk 21.
  • the electromagnet 7, the first disk 19, the terminal board 20 and the elastic elements 22 can all be accommodated within a ring 23 with seats for terminals 24, which faces toward and is proximate to the second disk 21.
  • the permanent magnet 8 can be accommodated inside a respective annular seat 25, which is surmounted by a covering pad 26.
  • a bushing 27 which has an appendage 28 in the upper part can be accommodated inside the hole 10 respectively of the magnet 8, of the seat 25 and of the pad 26.
  • the second elastic membrane 9 can be substantially circular in shape and comprise an outer crown 29 connected to an inner crown 30 by respective undulating elastic elements 31 which are substantially radial.
  • Such outer crown 30 can have two projections 32 on the upper face, and a protuberance 33 on the lower face.
  • the cover 5 can have, along its lower rim, a slot for the stable accommodation, in the assembled configuration, of the ridge 16 of the first membrane 6.
  • the ring 23 and the second disk 21 can be provided, along their rim, respectively with a recess 34 and with an indentation 35.
  • the recess 34 and the indentation 35 can be mutually aligned and stably accommodate the tooth 17 of the first membrane 6.
  • first disk 19 can be provided, at the central hole 10, with four protrusions 36, two on the upper face and two on the lower face.
  • such upper protrusions 36 can be coupled stably with the bevels 18 of the first membrane, while the lower protrusions 36 can be coupled with the appendage 28 of the bushing 27.
  • annular seat 25 will be provided, on its lateral surface, with a recess 37.
  • Such recess 37 can therefore stably accommodate, in the assembled configuration, part of the terminals 24 of the ring 23 and the projections 32 of the second membrane 9.
  • tubular body 4 can have a cavity on the inner lateral surface.
  • such cavity can stably accommodate the protuberance 33 of the second membrane 9.
  • the acoustic transmitter 1 is easy and economic to provide. Conveniently, the acoustic transmitter 1 entails a minimal number of steps for its provision.
  • the acoustic transmitter 1 has an original structure.
  • the acoustic transmitter 1 is of low cost, easily and practically implemented and safe in use.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

La présente invention concerne un émetteur acoustique (1) destiné à être couplé à une surface rigide, qui comprend une enceinte (2) constituée d'une plaque de base (3) surmontée d'un corps tubulaire (4) et d'un couvercle (5). Les composants suivants sont logés dans l'enceinte (2) : Au moins une première membrane élastique (6) ; au moins un électroaimant (7) ; au moins un aimant permanent (8) ; au moins une deuxième membrane élastique (9). Les composants ont un trou central traversant (10) qui est coaxial à l'axe du corps tubulaire (4). Une broche de fixation (11) est configurée pour être disposée dans les trous (10). Dans la configuration assemblée, la broche (11) est engagée dans une cavité filetée (12) de la plaque (3) pour le compactage mutuel et stable des composants à l'intérieur de l'enceinte (2).
PCT/IT2020/000030 2020-03-05 2020-03-05 Émetteur acoustique WO2021176483A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2020/000030 WO2021176483A1 (fr) 2020-03-05 2020-03-05 Émetteur acoustique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2020/000030 WO2021176483A1 (fr) 2020-03-05 2020-03-05 Émetteur acoustique

Publications (1)

Publication Number Publication Date
WO2021176483A1 true WO2021176483A1 (fr) 2021-09-10

Family

ID=71016611

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2020/000030 WO2021176483A1 (fr) 2020-03-05 2020-03-05 Émetteur acoustique

Country Status (1)

Country Link
WO (1) WO2021176483A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000798A1 (fr) * 1987-07-13 1989-01-26 Avm Hess, Inc. Transducteur acoustique
US4989254A (en) * 1989-06-30 1991-01-29 Amalaha Leonard D Electro-acoustic transducer and manufacturing process
WO2012073262A2 (fr) * 2010-12-01 2012-06-07 Politecnico Di Milano Dispositif de reproduction sonore doté d'actionneurs acoustiques coaxiaux
GB2508763A (en) * 2011-11-09 2014-06-11 Yeil Electronics Co Ltd Securing structure of sound output mechanism and sound processing means of mobile device capable of outputting visual and sound signals
EP3597314A1 (fr) * 2018-06-04 2020-01-22 Onkyo Corporation Dispositif vibrateur avec élément de vibration axiale

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000798A1 (fr) * 1987-07-13 1989-01-26 Avm Hess, Inc. Transducteur acoustique
US4989254A (en) * 1989-06-30 1991-01-29 Amalaha Leonard D Electro-acoustic transducer and manufacturing process
WO2012073262A2 (fr) * 2010-12-01 2012-06-07 Politecnico Di Milano Dispositif de reproduction sonore doté d'actionneurs acoustiques coaxiaux
GB2508763A (en) * 2011-11-09 2014-06-11 Yeil Electronics Co Ltd Securing structure of sound output mechanism and sound processing means of mobile device capable of outputting visual and sound signals
EP3597314A1 (fr) * 2018-06-04 2020-01-22 Onkyo Corporation Dispositif vibrateur avec élément de vibration axiale

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