EP4106347A1 - Dispositif auditif - Google Patents

Dispositif auditif Download PDF

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Publication number
EP4106347A1
EP4106347A1 EP22171821.6A EP22171821A EP4106347A1 EP 4106347 A1 EP4106347 A1 EP 4106347A1 EP 22171821 A EP22171821 A EP 22171821A EP 4106347 A1 EP4106347 A1 EP 4106347A1
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
hearing device
damping
housing
elastomer
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.)
Pending
Application number
EP22171821.6A
Other languages
German (de)
English (en)
Inventor
Hoong Yih Chan
Firdaus Prabowo
Agustiar Agustiar
Shinq Yee Chia
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 EP4106347A1 publication Critical patent/EP4106347A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/04—Structural association of microphone with electric circuitry therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture

Definitions

  • the invention relates to a hearing device, for example in the form of a hearing aid device.
  • Hearing devices are usually used to output an audio signal to the hearing of the wearer of this hearing device.
  • the output takes place by means of an output converter, usually acoustically via airborne sound using a loudspeaker (also referred to as “listener” or “receiver”).
  • Hearing devices of this type are often used as so-called hearing aid devices (also: hearing aids for short).
  • the hearing devices normally comprise an acoustic input converter (in particular a microphone) and a signal processor which is set up to process the input signal (also: microphone signal) generated by the input converter from the ambient sound using at least one signal processing algorithm which is usually stored in a user-specific manner in such a way that a Hearing loss of the wearer of the hearing device is at least partially compensated.
  • the output converter can also be, in addition to a loudspeaker, alternatively a so-called bone conduction receiver or a cochlear implant, which are set up for mechanically or electrically coupling the audio signal into the wearer's hearing.
  • hearing devices also includes devices such as so-called tinnitus maskers, headsets, headphones and the like.
  • Typical designs of hearing devices are behind-the-ear (“BTE” or “BTE”) and in-the-ear (“ITE” or “ITE”) hearing devices. These designations are aimed at the intended wearing position.
  • Behind-the-ear hearing devices have a (main) housing that worn behind the ear cup.
  • the sound output to the ear usually takes place by means of a sound tube, the end of which is positioned in the auditory canal, and in models that have an external loudspeaker that is placed in the auditory canal.
  • In-the-ear hearing devices on the other hand, have a housing that is worn in the auricle or even completely in the auditory canal.
  • loudspeakers are used, which can generate a comparatively high sound pressure level (for example of at least approximately 90 dB SPL).
  • the loudspeakers are arranged in an additional housing (“loudspeaker box”) within the housing of the hearing device so that the sound generated does not react on other components, in particular on the microphone or microphones in question.
  • the loudspeaker is usually suspended by means of an elastomer coating and/or supported only at certain points in order to prevent structure-borne noise from being transmitted to the other components.
  • the loudspeaker with its sound output socket is connected - usually even independently of the loudspeaker box - by means of an internal sound conduction element, usually a flexible tube, to a sound output opening of the hearing device, in the case of a BTE usually to a sound tube leading from the BTE housing to the ear.
  • an internal sound conduction element usually a flexible tube
  • structure-borne noise causes feedback ("feedback") in the range of around 1 to 2 kHz and airborne noise feedback (also known as open loop gain feedback) in the range of around 3-5 kHz.
  • the invention is based on the object of specifying an improved hearing device.
  • the hearing device has a housing, which encloses a housing interior, and a loudspeaker for generating acoustic signals.
  • the hearing device also has a damping pad formed, i. H. at least one such damping element, which is interposed between the loudspeaker and a wall of the housing or a loudspeaker box (in particular arranged within the housing).
  • the damping mat has at least one damping chamber filled with a fluid.
  • the damping mat has a fluid-filled damping chamber positioned between the loudspeaker and the wall, it can advantageously absorb vibrations and/or shocks in the direction between the loudspeaker and the wall and, in particular, absorb them to a higher degree compared to mounting elements made only of an elastomer . As a result, movements of the loudspeaker in the surface direction of the damping mat can also be reduced.
  • the loudspeaker is preferably supported (or: mounted) against the wall with only one side surface by means of the damping element.
  • Other side surfaces of the loudspeaker are preferably free of contact with the wall or other components, in particular elements not belonging to the damping element, of the hearing device. This reduces the transmission of vibrations to other components of the hearing device.
  • the wall against which the loudspeaker is mounted by means of the damping element is preferably an outer wall, in particular of the housing of the hearing device. This has a comparatively high rigidity and compared to the loudspeaker also has a high mass, so that this also enables effective damping of vibrations.
  • the hearing device is preferably a BTE hearing aid device, referred to as “BTE” for short.
  • the damping mat has a support layer formed from a first elastomer. This supporting layer forms at least one (or the) damping chamber filled with a fluid between the loudspeaker and the loudspeaker box.
  • this support layer has a number of columnar support elements. These support the damping chamber against the loudspeaker, the wall or a cover layer of the damping mat.
  • the support elements contribute to the damper chamber retaining its intended shape at least in normal use as intended.
  • the support elements also contribute to distributing them evenly over (or at least almost the) entire surface of the damping mat under load.
  • the support elements also contribute to increasing the shear strength of the damping element.
  • the supporting layer preferably forms a trough.
  • trough is preferably understood to mean that the support layer has lateral walls delimiting a recess.
  • the support elements described above protrude from the bottom of the tub, ie from its "tub bottom”.
  • cover layer which is preferably formed from a second elastomer that is stiffer than the first elastomer.
  • the damping element is preferably produced in a multi-component injection molding process, with the support layer being formed first in the form of the trough (with the support elements formed therein) and then with the cover layer - is closed - in a second injection molding process.
  • the cover layer is subsequently connected to the trough, for example in a type of sealing process.
  • the support layer preferably has an injection opening--in particular in a wall delimiting the depression of the trough--through which the damper chamber is filled with the fluid.
  • This injection opening is closed by means of a self-healing elastomer, for example a self-healing rubber.
  • the entire support layer is formed from the self-healing elastomer.
  • the self-healing elastomer forms a type of pressure valve or "seal" so that the injection opening is automatically closed after the fluid has been injected.
  • Such self-healing elastomers are known, for example, for closures of blood collection tubes or the like.
  • the "self-healing effects" of such elastomers are based on the formation of hydrogen bonds.
  • the damping element has at least one holding loop, in particular formed from the second elastomer.
  • the loudspeaker is held against the damping mat by means of this strap.
  • the shape of the hand strap is preferably already adapted to the external geometry of the loudspeaker.
  • the holding loop thus forms a rectangular shape.
  • the damping element preferably has two such holding loops.
  • the loudspeaker is glued onto the damping element.
  • the loudspeaker has an open front volume and is preferably arranged in the aforementioned loudspeaker box arranged inside the housing.
  • the loudspeaker lacks a complete lateral surface (in particular the Loudspeaker membrane adjacent), so that the attachment using one or two straps would not be possible or would at least reduce the positive effect of the open front volume.
  • the loudspeaker is arranged inside the loudspeaker box without a sound tube. This avoids or at least reduces a transmission of vibrations, in particular due to so-called pumping effects of the sound tube or also due to acoustic feedback due to changes in air pressure due to such pumping, and/or a resulting limitation of the achievable amplification.
  • In 1 shows a hearing device in the form of a hearing aid device, specifically a hearing aid device to be worn behind the ear of a user (also referred to as a hearing device for short, referred to here as “BTE 1”).
  • the BTE 1 comprises a housing 2 in which the electronic components of the BTE 1 are arranged. These electronic components are, for example, two microphones 4, a loudspeaker 6, a signal processor 8 and a battery module 10.
  • the microphones 4 are used to receive ambient noise and convert it into electrical input signals (also: “microphone signals MS”), which are processed (in particular filtered, amplified and/or attenuated as a function of frequency) by the signal processor 8 (also referred to as "controller”).
  • the processed input signals are then output as output signals AS to the loudspeaker 6, which converts them into sound signals and forwards them to the user's hearing.
  • a loudspeaker box (abbreviated: "box 12" for short) arranged within the housing 2 .
  • the loudspeaker 6 is fastened in this box 12 in a manner that is as vibration-decoupled as possible by means of a damping element 14 described in more detail below.
  • the box 12 can also be omitted.
  • a sound outlet socket 15 of the loudspeaker 6 is connected to a sound tube 16 which serves to conduct the airborne sound generated by the loudspeaker 6 into a further sound tube 18 leading from the housing 2 to the ear of the user.
  • the speaker 6 is also in the box 12 on a bottom wall 26 of the box 12 (see also figure 5 ) connected, which in turn rests against the outer wall of the housing 2.
  • the aforementioned damping element 14 is interposed.
  • the damping element 14 comprises a damping mat (see also 4 ).
  • This is formed by a damping layer 30 (also: “support layer”) made of a first elastomer with a comparatively low Shore hardness and has an approximately rectangular trough, from the trough floor 31 of which several columns 32 protrude as a support structure, which have an approximately hourglass-like longitudinal section ( s. 2 ).
  • the pan is closed by a cover layer 34 of a second elastomer having a higher Shore hardness such that the interior of the pan forms a gas-filled damping chamber 36 which is carried or supported by the pillars 32 .
  • the damping layer 30 is first formed, for example by injection molding.
  • the trough formed by the damping layer 30 is then sealed with the cover layer 34, for example in a multi-component injection molding process or by the cover layer 34 being sealed onto the damping layer 30.
  • a fluid in particular a gas, a liquid or also a mixture of gas and liquid, is then injected into the damper chamber 36 via an injection channel 38 (or: injection opening).
  • the injection channel 38 is closed by means of a self-healing elastomer, so that the injection channel 38 closes again automatically after an injection lance (or cannula, etc.) has been removed.
  • the damping element 14 is glued to a wall, specifically the inside thereof, of the housing 2 or of the box 12, specifically the bottom wall 26 thereof.
  • FIG 5 an alternative embodiment is shown. Inside the box 12 there is no sound tube 16 between the loudspeaker 6 and a sound outlet opening 42 of the box 12 .
  • a transmission of vibrations via the sound tube to the box 12 and thus to the housing 2 of the BTE 1 and in turn to the microphones 4 is prevented or reduced.
  • no sound pressure-related pumping of the sound tube can occur within the box 12, which can lead to a loss of performance on the one hand and airborne feedback on the other.
  • the speaker 6 Since there is no sound tube inside the box 12, the speaker 6 can also be adjusted. Therefore, the speaker 6 is formed with an open front volume by eliminating a speaker cabinet "top" which would be located above the sound output side of a speaker diaphragm 44 .
  • the loudspeaker 6 is shown as a “balanced armature receiver”.
  • the open front volume enables a high sensitivity of the BTE 1 in the high frequency range, especially in the voice range. Due to the open front volume, the sound outlet socket 15 is also missing. Vibrations of the loudspeaker 6 in the direction of the sound outlet opening 42 are therefore not transmitted to the box 12 via the sound outlet socket 15 and the sound tube 16 .
  • the loudspeaker 6 is not held in place by means of the straps 40 . These are not available here. Rather, the loudspeaker 6 is glued to the damping element 14, in particular to the cover layer 34.
  • the damping element 14 is in accordance with the embodiment figure 5 glued to the bottom wall 26 and the loudspeaker 6 in turn to the damping element 14.
  • the box 12 is also formed of a high permeability, soft magnetic metal.
  • the loudspeaker 6 is mounted against the wall of the BTE 1 with only one side wall.

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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP22171821.6A 2021-06-14 2022-05-05 Dispositif auditif Pending EP4106347A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021206009.9A DE102021206009A1 (de) 2021-06-14 2021-06-14 Hörvorrichtung

Publications (1)

Publication Number Publication Date
EP4106347A1 true EP4106347A1 (fr) 2022-12-21

Family

ID=81580782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22171821.6A Pending EP4106347A1 (fr) 2021-06-14 2022-05-05 Dispositif auditif

Country Status (4)

Country Link
US (1) US20220400333A1 (fr)
EP (1) EP4106347A1 (fr)
CN (1) CN218587333U (fr)
DE (1) DE102021206009A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854415A (en) * 1987-03-23 1989-08-08 Siemens Aktiengesellschaft Hearing aid whose components are mounted in a hearing aid housing
US20080112584A1 (en) * 2006-11-09 2008-05-15 Phonak Ag Support mount for electronic components
DE102009033317A1 (de) * 2009-07-15 2010-09-09 Siemens Medical Instruments Pte. Ltd. Hörhilfe mit vibrationsgedämpftem Hörer und Hörer
WO2014013353A1 (fr) * 2012-07-18 2014-01-23 Siemens Medical Instruments Pte. Ltd. Attache de connecteur de récepteur et de suspension de récepteur combinés
EP3179742B1 (fr) * 2015-09-30 2019-11-20 Oticon A/s Prothèse auditive comprenant un ensemble récepteur amortissant les chocs et les vibrations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692264A (en) * 1970-07-13 1972-09-19 Industrial Research Prod Inc Shock isolation mounts for fragile devices
DE102008045668B4 (de) 2008-09-03 2012-04-19 Siemens Medical Instruments Pte. Ltd. Hörhilfe mit Dämpfungselement
DE102009032981B4 (de) * 2009-07-14 2013-11-28 Siemens Medical Instruments Pte. Ltd. Hörerschlauch
WO2012103935A1 (fr) 2011-02-01 2012-08-09 Phonak Ag Dispositif auditif doté d'un module récepteur et procédé de fabrication d'un module récepteur
DK3070964T3 (da) * 2015-03-19 2019-07-22 Sivantos Pte Ltd Høreapparat, især hørehjælpeapparat.
US11082777B2 (en) * 2016-04-01 2021-08-03 Widex A/S Receiver suspension for a hearing assisting device
DE102018214323A1 (de) * 2018-08-24 2020-02-27 Sivantos Pte. Ltd. Hörinstrument mit einer Kopplungseinheit zur schwingungsgedämpften Lagerung eines Hörers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854415A (en) * 1987-03-23 1989-08-08 Siemens Aktiengesellschaft Hearing aid whose components are mounted in a hearing aid housing
US20080112584A1 (en) * 2006-11-09 2008-05-15 Phonak Ag Support mount for electronic components
DE102009033317A1 (de) * 2009-07-15 2010-09-09 Siemens Medical Instruments Pte. Ltd. Hörhilfe mit vibrationsgedämpftem Hörer und Hörer
WO2014013353A1 (fr) * 2012-07-18 2014-01-23 Siemens Medical Instruments Pte. Ltd. Attache de connecteur de récepteur et de suspension de récepteur combinés
EP3179742B1 (fr) * 2015-09-30 2019-11-20 Oticon A/s Prothèse auditive comprenant un ensemble récepteur amortissant les chocs et les vibrations

Also Published As

Publication number Publication date
DE102021206009A1 (de) 2022-12-15
US20220400333A1 (en) 2022-12-15
CN218587333U (zh) 2023-03-07

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