EP2453674A1 - Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif - Google Patents

Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif Download PDF

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Publication number
EP2453674A1
EP2453674A1 EP10190874A EP10190874A EP2453674A1 EP 2453674 A1 EP2453674 A1 EP 2453674A1 EP 10190874 A EP10190874 A EP 10190874A EP 10190874 A EP10190874 A EP 10190874A EP 2453674 A1 EP2453674 A1 EP 2453674A1
Authority
EP
European Patent Office
Prior art keywords
vibration isolator
suspension
damping
receiver
hearing device
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
EP10190874A
Other languages
German (de)
English (en)
Other versions
EP2453674B1 (fr
Inventor
Morten Birkmose Soendergaard
Jan Johansen
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.)
GN Hearing AS
Original Assignee
GN Resound AS
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 GN Resound AS filed Critical GN Resound AS
Priority to EP10190874.7A priority Critical patent/EP2453674B1/fr
Priority to DK10190874.7T priority patent/DK2453674T3/da
Priority to JP2013538167A priority patent/JP5715707B2/ja
Priority to CN201180054631.6A priority patent/CN103210666B/zh
Priority to PCT/EP2011/069657 priority patent/WO2012062761A1/fr
Publication of EP2453674A1 publication Critical patent/EP2453674A1/fr
Application granted granted Critical
Publication of EP2453674B1 publication Critical patent/EP2453674B1/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; 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
    • 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

Definitions

  • the present specification relates to a suspension for a hearing device receiver and to a method for producing a hearing aid with such a suspension. Additionally, the present specification relates to a hearing device comprising such a suspension.
  • a hearing device comprises a microphone which receives acoustic signals.
  • the received acoustic signals are processed where the processing may include amplification of the data.
  • the processed signals are transmitted to a receiver of the hearing device which converts the processed signals into another acoustic signal e.g. with a larger amplitude at certain frequencies.
  • the receiver broadcasts the other acoustic signal towards the tympanic membrane of a user of the hearing device.
  • the broadcasting of the other acoustic signal can cause the receiver and the hearing device to vibrate which vibrations may be transmitted back to the microphone resulting in an unwanted feedback loop thereby putting a limitation on the amplification which the hearing device may deliver to the user.
  • a suspension for a hearing device receiver comprising a first part and a second part and a vibration isolator positioned between the first and the second parts and mechanically coupled to the first and second parts; wherein the first part is adapted to at least partly enclose the receiver; and the second part is adapted to at least partly enclose a sound outlet of the hearing device; and wherein the vibration isolator 150) comprises an acoustic passage and a damping part enclosing said acoustic passage; and wherein the acoustic passage part provides an acoustic passages between the first and second parts; and wherein the damping part of the vibration isolator is asymmetrical along a longitudinal and/or a transverse axis of the vibration isolator; and wherein the vibration isolator is freely suspended between the first and second parts.
  • vibration energy is reduced to the housing from the receiver.
  • a material thickness of the damping part varying along the longitudinal and/or the transverse axis of the vibration isolator provides the asymmetry of the damping part.
  • the asymmetry of the vibration isolator is constructed by varying the thickness of the damping part. This ensures that parts of the vibration isolator comprising relatively thick walls are stiffer than parts comprising relatively thin walls.
  • the damping part further comprises a flexible part and a substantially rigid part positioned substantially intermediary between the first and second parts; and wherein the flexible part is more flexible than the substantially rigid part.
  • the suspension is adapted to change the vibration pattern of the suspension and the receiver such that the vibrations from the receiver are reduced to the housing and/or the sound outlet, but instead the vibration energy is dispersed in the free moving motion of the vibration isolator.
  • the flexible part is positioned between the second part and the substantially rigid pa rt.
  • the vibrations are dispersed in the substantially rigid damping part and the flexible part dampens further vibrations.
  • the first and the second parts and the vibration isolator are molded in one piece.
  • the first and the second parts and the vibration isolator are molded in an elastic material.
  • the material of the suspension enables absorption of vibration energy in addition to the dispersion of the vibration energy due to the free movement of the vibration isolator.
  • the damping part is asymmetric in at least two planes.
  • the suspension is able to disperse the vibration energy in the asymmetric planes.
  • the damping part is asymmetric in two planes and symmetrical in a third plane.
  • the suspension is able to disperse the vibration energy in the asymmetric planes.
  • the asymmetric planes are the X-Z plane and the Y-Z plane, and the symmetric plane is the X-Y plane.
  • the suspension is able to disperse the vibration energy in the asymmetric planes.
  • the flexible part comprises a transverse material thickness smaller than the substantially rigid part.
  • the flexibility of the flexible part is obtained by decreasing the wall thickness with respect to the wall thickness of the substantially rigid part.
  • a material thickness of the damping part varies asymmetrically along the longitudinal and/or transverse axis of the vibration isolator.
  • the suspension is able to disperse the vibration energy in the asymmetric planes.
  • the material thickness of the flexible part is smaller than the material thickness of the substantially rigid part.
  • the suspension is able to disperse the vibration energy in the asymmetric planes.
  • the acoustic passage is hollow and substantially tubular, and wherein a transverse dimension of the acoustic passage in proximity to the first part is smaller than the transverse dimension of the acoustic passage in proximity to the second part such that the acoustic passage ensures sufficient contact between the suspension and the receiver.
  • the acoustic passage is adapted to fit tightly around the snout of the receiver thereby reducing the risk of leaks from the receiver through the acoustic passage.
  • the invention further relates to a method of producing a hearing device comprising a receiver and a sound outlet and a suspension, the suspension comprising a first part and a second part and a vibration isolator positioned between and mechanically coupled to the first and second parts; the vibration isolator comprising a damping part enclosing an acoustic passage; the method comprising: coupling mechanically the first (130) part to the receiver (120); and coupling mechanically the second part to the sound outlet; such that the suspension provides an acoustic passage between the receiver and the sound outlet; and providing the damping part of the vibration isolator asymmetrically along a longitudinal and/or a transverse axis of the vibration isolator; and suspending the vibration isolator freely between the first and the second parts.
  • the method and embodiments thereof has the same advantages as the suspension for the same reasons.
  • the invention further relates to a hearing device comprising a receiver and a sound outlet and a suspension according to an embodiment of the suspension, wherein the receiver is mechanically coupled to the first part of the suspension and the sound outlet is mechanically coupled to the second part of the suspension.
  • the hearing device and embodiments thereof has the same advantages as the suspension for the same reasons.
  • a hearing device may be selected from the group consisting of a hearing aid, a hearing prosthesis, and the like.
  • Examples of a hearing device may include a behind the ear (BTE) hearing aid and a in the ear (ITE) hearing aid.
  • BTE behind the ear
  • ITE in the ear
  • Figure 1 shows a part of a hearing device 100 comprising a suspension 110 for a receiver 120 of the hearing device 100.
  • the hearing device further comprises a sound outlet 160.
  • the receiver 120 and/or the suspension 110 and/or the sound outlet 160 may be contained in a housing 170 of the hearing device 100. In an embodiment, the receiver 120 and the suspension and the sound outlet 160 are contained in the housing 170.
  • the suspension comprises a first part 130 and a second part 140 and a vibration isolator 150 positioned between the first 130 and the second 140 parts.
  • the vibration isolator 150 may be mechanically coupled to the first 130 and second parts 140.
  • the mechanical coupling between the vibration isolator 150 and the first 130 and the second 140 parts is provided by molding the vibration isolator 150 and the first 130 and the second 140 parts in one piece.
  • the mechanical coupling between the vibration isolator 150 and the first 130 and the second 140 parts may be chosen from the group consisting of vulcanizing, and casting, and injection molding.
  • the mechanical coupling between the vibration isolator 150 and the first 130 and the second 140 parts is made by molding such as heat sealing or the like.
  • first 130 and the second 140 parts and the vibration isolator 150 may be molded in an identical type of material such as an elastic material such as a rubber or silicone rubber or the like.
  • the first 130 and the second 140 parts and the vibration isolator 150 may be molded in different materials.
  • the vibration isolator 150 may be molded in a first material with a first elasticity and the first 130 and second 140 parts may be molded in a second material with a second elasticity.
  • the second elasticity is smaller than the first elasticity.
  • FIG. 2 shows a zoom of the vibration isolator 150.
  • the vibration isolator 150 comprises an acoustic passage 151 and a damping 152 part enclosing said acoustic passage 151.
  • the acoustic passage 151 provides an acoustic passage between the first 130 and second parts 140.
  • the acoustic passage 151 is hollow and substantially tubular such as to enable sound to travel from the first part 130 to the second part 140.
  • the acoustic passage may in another embodiment have a shape different from substantially tubular such as for example a tubular shape with a rectangular cross section.
  • the acoustic passage 151 may have a cylindrical shape.
  • a transverse dimension of the acoustic passage 151 in proximity to the first part 130 is smaller than the transverse dimension of the acoustic passage 151 in proximity to the second part 140.
  • the diameter of a cylindrical shaped acoustic passage may be smaller in proximity to the first part 130 than the diameter of the cylindrical shaped acoustic passage in proximity to the second part 140.
  • the transverse dimension of a tubular or substantially tubular acoustic passage 151 in proximity to the first part 130 is smaller than the external diameter of a tubular or substantially tubular snout of the receiver 120.
  • the tubular or substantially tubular acoustic passage 151 ensures sufficient contact between the suspension 110 and the receiver 120 by being tight fitted around the snout of the receiver 120.
  • the transverse dimension of a tubular or substantially tubular acoustic passage 151 in proximity to the second part 140 is equal to or substantially equal to (e.g. within 5%) the inner diameter of the sound outlet 160.
  • the damping 152 part of the vibration isolator 150 is asymmetrical along a longitudinal and/or a transverse axis of the vibration isolator 150.
  • Reference 153 denotes a wall thickness of the vibration isolator 150.
  • the wall thickness 153 of the damping 152 part varies along the longitudinal and/or the transverse axis of the vibration isolator 150 and thereby provides the asymmetry of the damping 152 part.
  • a material thickness of the damping 152 part varies along the longitudinal and/or the transverse axis of the vibration isolator 150.
  • a Cartesian coordinate system is used to define a number of planes in the drawings such as an X-Y plane, a X-Z plane and a Y-Z plane.
  • the wall thickness 153 of the damping 152 part is asymmetrical in the X-Z plane and the Y-Z plane of figure 1 .
  • the wall thickness 153 of the damping 152 part is symmetrical in the X-Y plane of figure 1 .
  • the damping part 152 further comprises a flexible 154 part and a substantially rigid 155 part.
  • the substantially rigid part is positioned substantially intermediary between the first 130 and second 140 parts.
  • the flexible 154 part is positioned between the second part 140 and the substantially rigid 155 part.
  • the flexible 154 part is more flexible than the substantially rigid 155 part i.e. the flexible 154 part has a larger elasticity than the substantially rigid 155 part. This may be achieved by molding the flexible 154 part in a more elastic material than the substantially rigid 155 part. Alternatively or additionally, it may be achieved by molding the flexible 154 part with a smaller wall thickness 153 than the wall thickness 153 of the substantially rigid 155 part i.e. the material thickness of the flexible 154 part is smaller than the material thickness of the substantially rigid 155 part.
  • the wall thickness of the substantially rigid part 155 is at least 3 times thicker than the smallest wall thickness of the flexible part 154.
  • the flexible 154 and substantially rigid 155 parts ensures that the vibration pattern of the suspension is changed such that vibrations generated by the receiver 120 are directed in a direction away from the sound outlet 160 and substantially in one or more directions. Thereby, vibrations from the receiver 120 will be dampened and not propagate further in the hearing device 100 than to the vibration isolator.
  • the vibration isolator 150 is freely suspended between the first 130 and second 140 parts of the suspension 110 i.e. the vibration isolator 150 is mechanically coupled to the hearing aid 100 by the first part 130 being mechanically coupled to the receiver 120 and the second part 140 being mechanically coupled to the sound outlet 160. Thereby, the vibration isolator 150 is able to move/vibrate freely in the three planes illustrated in figure 1 i.e. in the X-Y plane and the X-Z plane and the Y-Z plane.
  • the substantially rigid 155 part of the damping part 150 is in an embodiment mechanically coupled directly to the first part 130 in order to ensure a stiff connection between the substantially rigid 155 part and the first part 130.
  • Figure 3 shows a zoom of the first part 130.
  • the first part 130 is adapted to enclose at least a part of the receiver 120.
  • the first part 130 may comprise a rectangular part 210 adapted to enclose at least a part of the receiver body 220.
  • an inner cross section of the rectangular part 210 is equal to or substantially equal to (e.g. 5% less than or 2% less than) an outer cross section of the enclosed part of the receiver body 220 in order to ensure sufficient physical contact between the rectangular part 210 and the receiver body 220. Thereby is achieved that the receiver is in physical contact with the first part 130 by a gripping force between the first part 130 and the receiver 120.
  • an inner cross section of the acoustic passage 151 enclosing at least a part of a snout 222 of the receiver 120 is equal to or substantially equal to (e.g. 5% less than or 2% less than) an outer cross section of the enclosed part of the snout 222 in order to ensure sufficient physical contact between the acoustic passage 151 and the enclosed part of the snout 222.
  • the snout 222 is in physical contact with the acoustic passage 151 via a gripping force between the snout 222 and the acoustic passage 151.
  • Figure 4 shows a zoom of the second part 140.
  • the second part 140 is adapted to enclose at least a part of the sound outlet 160.
  • the second part may comprise a tubular part 141 such as a cylindrical part and a rectangular part 142 such as a square part.
  • the rectangular part 142 ensures sufficient abutment between the rectangular part 142 and the housing 170.
  • Both the tubular part 141 and the square part 142 comprises an inner cross section matching or substantially matching (e.g. 5% less than) the outer cross section of the sound outlet 160 in order to ensure sufficient physical contact between the tubular part 141 and the square part 142 and the sound outlet 160.
  • the sound outlet 160 comprises a cylindrical outer cross section and thus, the inner cross section of the tubular part 141 and the rectangular part 142 are cylindrical thereby enabling reception of the sound outlet 160.
  • the tubular part 141 and the rectangular part 142 may be molded in one piece or may be molded in two pieces and mechanically coupled together by e.g. welding.
  • the first 130 and second 140 parts ensures a secure fastening of the suspension 110 to the housing 170 of the hearing aid 100 via the receiver 120 and the sound outlet 160.
  • Figure 5 shows an embodiment of the suspension 110 wherein the vibration isolator 150 contains one or more structures 156, 157 adapted to receive one or more special features of the receiver 120 to thereby ensure correct placement of the receiver 120 with respect to the vibration isolator 150. Thereby, practical and easy assembly of the receiver 120 with the suspension 110 is enabled.
  • the structures 156, 157 may be formed as recesses in the vibration isolator 150 adapted to receive substantially similar protrusions of the receiver 120.
  • the invention further comprises a number of aspects according to the below mentioned items.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Vibration Prevention Devices (AREA)
EP10190874.7A 2010-11-11 2010-11-11 Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif Active EP2453674B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10190874.7A EP2453674B1 (fr) 2010-11-11 2010-11-11 Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif
DK10190874.7T DK2453674T3 (da) 2010-11-11 2010-11-11 Ophængning til en høreapparatmodtager, fremgangsmåde til fremstilling af et høreapparat og høreapparat
JP2013538167A JP5715707B2 (ja) 2010-11-11 2011-11-08 聴覚装置のレシーバ用のサスペンション、聴覚装置の製造方法、および聴覚装置
CN201180054631.6A CN103210666B (zh) 2010-11-11 2011-11-08 用于听力设备受话器的悬架、以及制造听力设备的方法、和听力设备
PCT/EP2011/069657 WO2012062761A1 (fr) 2010-11-11 2011-11-08 Suspension pour récepteur d'appareil auditif, procédé de production d'un appareil auditif, ainsi qu'appareil auditif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10190874.7A EP2453674B1 (fr) 2010-11-11 2010-11-11 Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif

Publications (2)

Publication Number Publication Date
EP2453674A1 true EP2453674A1 (fr) 2012-05-16
EP2453674B1 EP2453674B1 (fr) 2015-09-23

Family

ID=43566686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10190874.7A Active EP2453674B1 (fr) 2010-11-11 2010-11-11 Suspension pour récepteur de dispositif auditif, et procédé de production d'un dispositif auditif et dispositif auditif

Country Status (2)

Country Link
EP (1) EP2453674B1 (fr)
DK (1) DK2453674T3 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001043498A1 (fr) * 1999-12-10 2001-06-14 Sonic Innovations, Inc. Dispositif de suspension de recepteur pour prothese intra-canal
WO2004008803A1 (fr) * 2002-07-12 2004-01-22 Oticon A/S Moyens de suspension pour transducteur
WO2005055653A2 (fr) * 2003-12-05 2005-06-16 Oticon A/S Dispositif de communication avec partie structurelle
WO2007011421A1 (fr) * 2005-07-15 2007-01-25 Knowles Electronics, Llc Ensemble de transducteur electroacoustique resistant aux chocs et isole contre les vibrations

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7403629B1 (en) * 1999-05-05 2008-07-22 Sarnoff Corporation Disposable modular hearing aid
DE102006029819A1 (de) * 2006-06-28 2008-01-03 Siemens Audiologische Technik Gmbh Hörgerät mit einer Befestigung für einen Hörerschlauch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001043498A1 (fr) * 1999-12-10 2001-06-14 Sonic Innovations, Inc. Dispositif de suspension de recepteur pour prothese intra-canal
WO2004008803A1 (fr) * 2002-07-12 2004-01-22 Oticon A/S Moyens de suspension pour transducteur
WO2005055653A2 (fr) * 2003-12-05 2005-06-16 Oticon A/S Dispositif de communication avec partie structurelle
WO2007011421A1 (fr) * 2005-07-15 2007-01-25 Knowles Electronics, Llc Ensemble de transducteur electroacoustique resistant aux chocs et isole contre les vibrations

Also Published As

Publication number Publication date
EP2453674B1 (fr) 2015-09-23
DK2453674T3 (da) 2015-10-05

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