EP3849213A1 - Enceinte acoustique et appareil acoustique - Google Patents

Enceinte acoustique et appareil acoustique Download PDF

Info

Publication number
EP3849213A1
EP3849213A1 EP20209872.9A EP20209872A EP3849213A1 EP 3849213 A1 EP3849213 A1 EP 3849213A1 EP 20209872 A EP20209872 A EP 20209872A EP 3849213 A1 EP3849213 A1 EP 3849213A1
Authority
EP
European Patent Office
Prior art keywords
box
loudspeaker
shell
lower shell
cover shell
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
Application number
EP20209872.9A
Other languages
German (de)
English (en)
Other versions
EP3849213B1 (fr
EP3849213C0 (fr
Inventor
Kevin Bayer
Stefanie Beyfuß
Holger Kral
Hartmut Ritter
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.)
Sivantos Pte Ltd
Original Assignee
Sivantos Pte Ltd
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 Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP3849213A1 publication Critical patent/EP3849213A1/fr
Application granted granted Critical
Publication of EP3849213B1 publication Critical patent/EP3849213B1/fr
Publication of EP3849213C0 publication Critical patent/EP3849213C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status 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
    • H04R25/00—Electric hearing aids
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
    • 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
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • 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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Definitions

  • the invention relates to a loudspeaker box which is set up and provided in particular for use in a hearing aid.
  • the invention also relates to such a hearing aid.
  • Hearing aids in particular in the form of hearing aids, are used by people with reduced hearing to at least partially compensate for their hearing impairment.
  • hearing aids usually include at least one microphone for capturing noises from the environment, a signal processor for mostly hearing impairment-specific processing of the captured noises, e.g. frequency-selective filtering and / or amplification, as well as an output converter for transmitting the processed noises to the hearing of the person.
  • output converters in the form of loudspeakers are used to output the processed noises acoustically.
  • bone conduction earphones or cochlear implants are also used for mechanical or electrical stimulation of the hearing.
  • volume values of around 120 dBSPL may also be required.
  • sound-sensitive components of the hearing aid in particular the respective microphone or microphone, must be protected from sound waves emanating from such a loudspeaker - both in the form of airborne sound and in the form of structure-borne sound.
  • loudspeaker boxes are usually used, which have an additional Represent the housing for the loudspeaker within the actual hearing aid housing in order to encapsulate the loudspeaker in particular airtight from the rest of the housing interior.
  • the loudspeaker is also regularly mounted in this loudspeaker box to reduce vibrations, for example by means of an elastomer (for example a rubber or the like).
  • Loudspeaker boxes of this type are, for example, integrated into the "normal" hearing aid housing or designed as separate structural units which are preassembled as a pre-assembly unit and then built into the hearing aid housing.
  • the fluid-tight sealing of the loudspeaker box poses a certain problem. This is partially solved by gluing or welding the loudspeaker box.
  • the invention is based on the object of specifying an improved loudspeaker box.
  • the loudspeaker box according to the invention is set up and provided in particular for use in a hearing aid, preferably in a hearing aid.
  • the loudspeaker box has a pot-like box lower shell that delimits a box interior for at least partial accommodation of a loudspeaker.
  • the loudspeaker box has a pot-like box cover shell which, when the loudspeaker box is installed as intended, is placed on the lower box shell, overlapping part of its pot height, to close the box interior and to enclose the loudspeaker.
  • the box lower shell and the box cover shell form a fluid-tight closure of the box interior in the area of their overlap using a material that is more elastic than the box lower shell and / or the box cover shell.
  • the box lower shell and the box cover shell are in accordance with their intended use Mounted state reversibly non-destructively releasable connected to one another.
  • pot-like is understood here and in the following in particular to mean that the box lower shell and the box cover shell have wall sections which delimit the box interior in five mutually perpendicular spatial directions.
  • Por height is understood here and in the following in particular to mean the length of the wall sections of the respective box shell forming the “pot side walls", which extend at least roughly or approximately at right angles from a wall section forming a base piece.
  • the loudspeaker can advantageously be subjected to maintenance, for example, in a particularly simple and inexpensive manner. Nevertheless, due to the use of the material with increased elasticity, a permanent fluid-tight closure of the box interior is given.
  • the box cover shell itself is formed from the material with increased elasticity, in particular from an elastomer.
  • the box cover shell is preferably formed from a “hard rubber” or a comparable “stiff” elastomer (which has sufficient elasticity, ie in particular a higher elasticity than conventional thermosetting or thermoplastic plastics).
  • This material in particular the hard rubber or the elastomer, preferably has a Shore A hardness of 50-90, preferably 50-70.
  • a fluoroelastomer is preferably used. This advantageously provides a comparatively high dimensional stability and strength, for example for stable installation in a higher-level device housing, for example a hearing device housing.
  • the box cover shell also forms an interference fit with the box lower shell (also referred to as a press fit). This enables a self-retaining, non-positive and also sealing connection between the box bottom shell and the box cover shell.
  • the lower box shell is made of a plastic with increased rigidity, e.g. B. a fiber-reinforced, in particular a (short) glass fiber reinforced thermoplastic or an unreinforced high-performance plastic such.
  • PPS polyphenylene sulfide
  • the overall weight of the loudspeaker box can be increased through the choice of metal in particular (possibly also a comparatively high density and / or filled plastic), which in turn is advantageous for reducing the transmission of loudspeaker vibrations in the form of structure-borne sound.
  • the loudspeaker is in the intended assembly state for (possibly further) vibration damping by means of elastic bearing means opposite the box lower shell and / or the box upper shell stored in the box interior.
  • the loudspeaker is supported in at least four, preferably five or six different spatial directions in the box interior.
  • the loudspeaker box when the loudspeaker box is installed as intended, at least one sealing element made of the elastic material described above or another material with increased elasticity is temporarily stored in the area of the overlap between the lower box shell and the top box shell.
  • This sealing element serves at least to support the formation of the fluid-tight closure of the box interior, in particular if the box cover shell is formed from the elastic material described above.
  • the box cover shell is (also) made of a rigid material, e.g. B. from a plastic of the type described above (for the box lower shell) or from a metal (optionally made of the same material as the box lower shell).
  • the box interior is sealed due to a clamping and elastic deformation of the sealing element between the box lower shell and the box cover shell.
  • the sealing element also serves in particular for frictional fixing of the box cover shell to the box lower shell, preferably by having a material thickness that exceeds an assembly gap between the box cover shell and the box lower shell.
  • the sealing element described above is formed integrally with the above-mentioned bearing means. This advantageously reduces the number of individual parts and thus simplifies assembly.
  • the storage means are preferably formed by pyramid-like (i.e., for example, the shape of a tetrahedron, a square or polygonal pyramid, but also a cone) knobs, on the tips of which the loudspeaker rests in the intended assembly state (and these are regularly at least slightly deformed).
  • pyramid-like i.e., for example, the shape of a tetrahedron, a square or polygonal pyramid, but also a cone
  • knobs on the tips of which the loudspeaker rests in the intended assembly state (and these are regularly at least slightly deformed).
  • these knobs protrude on the inside from an annular band which forms the sealing element that is preferably integrally connected to the knobs.
  • the knobs protrude from the outside through corresponding openings in the box lower shell into the box interior.
  • the ring band rests on an outer surface of the lower box shell and preferably seals the openings (also referred to as windows) from the outside.
  • the openings are positioned in the area of the box lower shell in which the box cover shell is intended for the box lower shell Installation state overlaps.
  • the knobs are supported indirectly via the ring band against the inner surface of the box cover shell.
  • the box lower shell or the box cover shell has a sound passage opening. This results in a targeted emission of airborne sound during normal operation of the loudspeaker, preferably in a sound channel, for example a sound tube or the like, coupled airtightly to the sound passage opening (preferably transversely to its longitudinal extension).
  • the hearing aid according to the invention in particular a hearing aid, has the loudspeaker box described above.
  • the hearing aid preferably also has the loudspeaker accommodated in the loudspeaker box and the aforementioned hearing aid housing in which further components, for example a signal processor and at least one microphone and the loudspeaker box, are mounted.
  • the hearing aid therefore also has the features described in connection with the loudspeaker box and the advantages resulting therefrom.
  • “Frictional connection” or a “non-positive connection” between at least two interconnected parts is understood here and in the following in particular to mean that the interconnected parts are prevented from sliding off one another due to a frictional force acting between them. If there is no "connecting force” causing this frictional force (ie the force that presses the parts against each other, e.g. a screw force or the weight force itself, in the present case in particular a clamping force between the box lower shell and the box cover shell due to an interference fit and / or the intermediate storage of the sealing element), the non-positive connection cannot be maintained and thus released.
  • a hearing aid 1 specifically a hearing aid, is shown schematically.
  • the hearing aid 1 has a hearing aid housing 2 to be worn behind the ear of a user, which is used to accommodate electronic components of the hearing aid 1, e.g. B. of microphones 4, a signal processor 6 and a loudspeaker 8 is set up.
  • the hearing aid 1 In order to forward acoustic signals output by the loudspeaker 8 to the hearing of the user, the hearing aid 1 has a sound tube 10 coupled to the hearing aid housing 2.
  • a battery 12 optionally a rechargeable battery or a primary cell, is also accommodated in the hearing aid housing 2.
  • the hearing aid 1 is one which emits acoustic output signals with a comparatively high volume value (greater than 90 or 100 dBSPL) in order to provide users with a correspondingly severe hearing impairment. Due to the high sound power of the loudspeaker 8, it is necessary, in particular, to protect the microphones 4 from feedback from the sound emitted by the loudspeaker 8 - both in the form of airborne sound and structure-borne sound (i.e. vibrations emanating from the loudspeaker 8).
  • the hearing aid 1 has a loudspeaker box 14 arranged inside the hearing aid housing 2, which surrounds the loudspeaker 8 in such a way that airborne sound is prevented from being emitted into the interior of the hearing aid housing 2.
  • the loudspeaker box 14 is only in fluid connection with the sound tube 10 via a sound passage opening 16.
  • the speaker box 14 (see. Also Fig. 2 ) manufactured separately from the hearing aid housing 2 and is therefore mounted in this.
  • the loudspeaker box 14 has a lower box shell 18 (cf. Figures 2 to 6 ), in which in the intended assembly state (cf. Fig. 4 ) the loudspeaker 8 is added.
  • the lower box shell 18 is designed like a pot, that is to say it is completely open only in one spatial direction in order to accommodate the loudspeaker 8 in a box interior 20 defined by the lower box shell 18.
  • the other five spatial directions are (at least partially) covered by (side) wall sections of the lower box shell 18.
  • the sound passage opening 16 is arranged in a base piece 22 of the box lower shell 18.
  • the loudspeaker box 14 In order to seal the box interior 20 in a fluid-tight manner (apart from the sound passage opening 16), the loudspeaker box 14 has a box cover shell 24, which is likewise designed like a pot. In the intended assembly state, this is pushed onto the lower box shell 18 and partially overlaps it.
  • the box lower shell 18 is injection molded from a technical, rigid plastic (for example a polyamide, an acrylic butadiene styrene or a polyphenylene sulfide; optionally each fiber-reinforced) and the box cover shell 24 is made from a comparatively elastic one Plastic, specifically a comparatively stiff elastomer, for example a fluoroelastomer and / or an elastomer with at least 50-70 Shore A hardness, manufactured.
  • the inner dimensions of the box cover shell 24 (specifically in the area of the “pot rim”) are undersized compared to the corresponding outer dimensions of the box lower shell 18.
  • an interference fit or interference fit between the box lower shell 18 and the box cover shell 24 is specified, which - due to the comparatively elastic material of the box cover shell 24 - leads to a fluid-tight and non-positive connection between the two.
  • a cohesive connection welding, gluing
  • the box cover shell 24 can thus be reversibly removed from the box lower shell 18.
  • the loudspeaker 8 arranged in the box interior 20 can be serviced in a simple manner.
  • the loudspeaker 8 is also mounted in the intended mounting state by means of mounting means formed from an elastomer, here in the form of pyramid-like knobs 26, in the box interior 20.
  • These knobs 26 are formed protruding on the inside on two ring bands 28.
  • the ring bands 28 rest on the outside on an overlapping area 30 of the box lower shell 18 with the box cover shell 24.
  • the box lower shell 18 is perforated; specifically, several windows 32 are formed in it, which form openings into the box interior 20 and are spaced from one another by webs 34.
  • the knobs 26 protrude through the windows 32 into the box interior 20.
  • the box cover shell 24 presses from the outside against the ring straps 28 (see Fig. Fig. 4 ) and thus forms the abutment for the knobs 26.
  • the ring bands can also take on a sealing function between the box cover shell 24 and the box lower shell 18.
  • the loudspeaker 8 is designed as a so-called double loudspeaker. Specifically, the loudspeaker 8 has two individual loudspeakers coupled to one another. A common sound outlet connector 36 is connected to the sound passage opening 16 via a hose piece 38 in the intended assembly state.
  • FIG. 8 an alternative embodiment of the loudspeaker box 14 is shown.
  • the mounting means for mounting the loudspeaker 8 in the box interior 20 are formed by a cover 40 which is formed from an elastomer and which partially envelops the loudspeaker 8 like a stocking.
  • An annular sealing band 42 is formed on the cover 40 and rests on the outside of the box lower shell 18 in the intended assembly state.
  • the box cover shell 24 is dimensioned in such a way that a clamping force is exerted on the sealing band 42, which on the one hand enables the fluid-tight connection and on the other hand enables the non-positive connection of the box cover shell 24 to the box lower shell 18.
  • the hose piece 38 is not shown here.
  • the box cover shell 24 is also made of a rigid material, for example the aforementioned engineering plastics or a metal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
EP20209872.9A 2020-01-09 2020-11-25 Enceinte acoustique et appareil acoustique Active EP3849213B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020200164.2A DE102020200164A1 (de) 2020-01-09 2020-01-09 Lautsprecherbox und Hörgerät

Publications (3)

Publication Number Publication Date
EP3849213A1 true EP3849213A1 (fr) 2021-07-14
EP3849213B1 EP3849213B1 (fr) 2023-06-21
EP3849213C0 EP3849213C0 (fr) 2023-06-21

Family

ID=73597986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20209872.9A Active EP3849213B1 (fr) 2020-01-09 2020-11-25 Enceinte acoustique et appareil acoustique

Country Status (4)

Country Link
US (1) US11956598B2 (fr)
EP (1) EP3849213B1 (fr)
CN (1) CN113115189B (fr)
DE (1) DE102020200164A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114125651B (zh) * 2021-11-22 2025-12-05 立讯电子科技（昆山）有限公司 一种喇叭模组

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2723100A1 (fr) * 2012-10-12 2014-04-23 Oticon A/s Armoire de haut-parleur et haut-parleur miniature et prothèse auditive
EP2753102A1 (fr) * 2013-01-07 2014-07-09 Oticon A/s Prothèse auditive avec un composant intra-auriculaire
US20170094422A1 (en) * 2015-09-30 2017-03-30 Oticon A/S Hearing aid comprising a receiver assembly
US10206296B2 (en) * 2011-08-22 2019-02-12 Catalyst Lifestyle Limited Waterproof case

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000079835A1 (fr) * 1999-06-16 2000-12-28 Phonak Ag Appareil auditif se plaçant derriere l'oreille
US9578429B2 (en) * 2006-11-09 2017-02-21 Sonova Ag Support mount for electronic components
WO2008095489A1 (fr) * 2007-02-08 2008-08-14 Widex A/S Composant de récepteur dans l'oreille (rite) pour prothèse auditive
DE102012214976B3 (de) * 2012-08-23 2013-11-07 Siemens Medical Instruments Pte. Ltd. Hörinstrument und Ohrstück mit Receiver
DK2750413T3 (en) * 2012-12-28 2017-05-22 Sonion Nederland Bv Hearing aid
CN204497999U (zh) * 2015-03-11 2015-07-22 北京微科能创科技有限公司 电源模块
EP3280158B1 (fr) * 2016-07-12 2022-05-11 Oticon A/s Aide auditive
EP3337191B1 (fr) * 2016-12-16 2021-05-19 Sonion Nederland B.V. Ensemble de lecteur de son
CN206719926U (zh) * 2017-03-30 2017-12-08 陈瑶瑶 一种软尺透明胶带
DE102018214322A1 (de) * 2018-08-24 2020-02-27 Sivantos Pte. Ltd. Dämpfungseinrichtung für einen Hörer eines Hörinstruments sowie Hörinstrument mit einer solchen Dämpfungseinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10206296B2 (en) * 2011-08-22 2019-02-12 Catalyst Lifestyle Limited Waterproof case
EP2723100A1 (fr) * 2012-10-12 2014-04-23 Oticon A/s Armoire de haut-parleur et haut-parleur miniature et prothèse auditive
EP2753102A1 (fr) * 2013-01-07 2014-07-09 Oticon A/s Prothèse auditive avec un composant intra-auriculaire
US20170094422A1 (en) * 2015-09-30 2017-03-30 Oticon A/S Hearing aid comprising a receiver assembly

Also Published As

Publication number Publication date
EP3849213B1 (fr) 2023-06-21
CN113115189B (zh) 2023-03-28
DE102020200164A1 (de) 2021-07-15
CN113115189A (zh) 2021-07-13
US11956598B2 (en) 2024-04-09
EP3849213C0 (fr) 2023-06-21
US20210219078A1 (en) 2021-07-15

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