EP2515556A2 - Reduction of acoustic feedback by reducing vibrations in a hearing aid - Google Patents

Reduction of acoustic feedback by reducing vibrations in a hearing aid Download PDF

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Publication number
EP2515556A2
EP2515556A2 EP12161537A EP12161537A EP2515556A2 EP 2515556 A2 EP2515556 A2 EP 2515556A2 EP 12161537 A EP12161537 A EP 12161537A EP 12161537 A EP12161537 A EP 12161537A EP 2515556 A2 EP2515556 A2 EP 2515556A2
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EP
European Patent Office
Prior art keywords
hearing aid
housing part
housing
connection
hook
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
EP12161537A
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German (de)
French (fr)
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EP2515556A3 (en
EP2515556B1 (en
Inventor
Endre Barti
Hartmut Ritter
Michael Sattler
Christian Weistenhöfer
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Sivantos Pte Ltd
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Siemens Medical Instruments Pte Ltd
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Publication of EP2515556A2 publication Critical patent/EP2515556A2/en
Publication of EP2515556A3 publication Critical patent/EP2515556A3/en
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Publication of EP2515556B1 publication Critical patent/EP2515556B1/en
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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
    • 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

Definitions

  • the invention relates to a hearing aid.
  • Hearing aids generate acoustic feedbacks (feedback), which are caused by various design features.
  • Two key features that affect feedback are the weight and length of the hearing aid. Therefore, especially high performance hearing aids (so-called super power devices) with a high gain and heavy batteries tend to generate feedback in the acoustic range between 2 and 6 kHz. In almost all cases, therefore, sufficient amplification can not be achieved in directional microphone mode.
  • Such hearing aids are usually designed as behind-the-ear hearing aids (BTE) and have a housing which is worn behind the ear by means of a hook. The housing encloses the speaker (earphone) and houses batteries for power supply.
  • BTE behind-the-ear hearing aids
  • the object of the invention is to provide a hearing aid which has reduced feedback. This object is achieved by the hearing aid according to claim 1.
  • the invention relates to a hearing aid comprising a housing in which a receiver and a battery are arranged, wherein the housing has a first housing part and a second housing part, which are connected to one another via a connection, wherein at least one housing part or a damping element provided in the connection is formed of an elastic material.
  • the damping element is preferably arranged between the first and the second housing part.
  • the hearing aid may be a behind-the-ear hearing aid with a hook.
  • the first housing part is formed from an elastic material.
  • the battery is arranged in the first housing part.
  • the receiver is arranged in the second housing part.
  • the battery is arranged in the first housing part and the receiver in the second housing part.
  • the second housing part is formed of a non-elastic material.
  • non-elastic material is a thermoset plastic, in particular ABS.
  • the elastic material be an elastomeric plastic, e.g. Silicone rubber, a thermoplastic elastomer (TPE) or a fluoroelastomer such as Viton® is.
  • elastomeric plastic e.g. Silicone rubber, a thermoplastic elastomer (TPE) or a fluoroelastomer such as Viton® is.
  • connection between the first and second housing part is a plug connection, screw connection or bayonet connection.
  • the decoupling can be achieved by a damping element which is arranged between the first and second housing part, for example a ring or a disk of damping material, for example an elastomeric material.
  • a housing part preferably the part which contains the battery, may be formed from a damping material, eg an elastomeric material.
  • the other housing part can accommodate the microphone and the handset and from a rigid, non-elastic material, such as a thermoset material or a rigid thermoplastic material may be formed.
  • the inventors have found that already a decoupling of the hook from the rest of the housing by a compound containing a damping element is an effective measure for the reduction of feedback.
  • An even more effective damping is possible if the housing is divided into two housing parts, wherein in one housing part the battery and the other housing part of the listener is housed and wherein a housing part made of an elastic or soft damping material or a damping element between the two housing parts is arranged.
  • the embodiment with a housing part made of an elastic or soft damping material has proved in experiments as the most effective measure for suppressing feedback.
  • FIG. 1 1 schematically shows a BTE hearing aid 1 according to the prior art, with a rigid housing 11, microphone opening 13, hook 15 and a connection 17 for a hearing tube (not shown), which leads into the ear.
  • the housing 11 is integrally formed integrally with the hook 15.
  • FIG. 2 schematically shows a first embodiment of a hearing aid 1 'according to the invention, with a first housing part 111 and second housing part 112.
  • a battery (not shown) is arranged in the first housing part 111.
  • the microphone behind a microphone opening 13 and the receiver (not shown) are arranged.
  • the first housing part 111 is formed from an elastomeric plastic, for example TPE.
  • the connection 19 is designed as a simple plug-in or latching connection.
  • FIG. 3 schematically shows a second embodiment of a hearing aid 1 'according to the invention, with a first housing part 111 and second housing part 112.
  • a battery (not shown) is arranged in the first housing part 111.
  • the microphone 13 and the handset (not shown) are arranged in the second housing part 112, the microphone 13 and the handset (not shown) are arranged in the second housing part 112, the microphone 13 and the handset (not shown) are arranged.
  • the first housing part 111 is formed of a Duroplastvasesstoff.
  • the connection 19 ' is designed as a simple plug connection, wherein a damping element made of elastomeric material between the first housing part 111 and the second housing part 112 is arranged.
  • FIG. 4 schematically shows a third embodiment of a hearing aid according to the invention, in which the hook 151 is connected via a damped connection 191 with the first housing part 111 '.
  • a battery not shown
  • the handset not shown
  • FIG. 5 shows the hook 151 with connecting elements 193, 195, 197 according to the third embodiment FIG. 4 .
  • the connection here comprises a damping element 193 made of a damping soft material, for example TPE, and first connecting element 195, which act together as a bayonet closure.
  • first connecting element 195 which act together as a bayonet closure.
  • second connection element 197 is arranged.
  • FIG. 6 shows the hook 151 with connecting elements 193, 195, 197 according to the third embodiment FIG. 4 or 5 in a sectional view.
  • FIG. 8 shows a diagram showing the feedback behavior of the hearing aid according to the invention according to the embodiment according to Figure 4-6 represents.
  • This embodiment has a damping element between the hook and the rest of the housing.
  • the dashed line shows the feedback behavior of a hearing aid according to the prior art with a one-piece, rigid housing. At approx. 4 kHz and 6 kHz, high maxima of the transfer function can be seen.
  • the solid thin line shows the feedback behavior of the hearing aid according to the invention with a damping element between the hook and the rest of the housing, which is the embodiment according to FIGS. 4 to 6 equivalent. It can be seen that the sharply delimited maxima are no longer present at approx.
  • this damping measure is surprisingly well suited to minimize feedback effectively if the same construction with a housing part made of an elastic or soft damping material is more effective (see. Fig. 7 where the feedback is completely suppressed at about 6-7 kHz).

Abstract

The hearing device (1') has a housing, in which an earpiece and a battery are arranged. The housing has two housing parts (111,112). The housing parts are connected to one another by a connection (19). One of the housing parts or an attenuation element provided in the connection between the housing parts is formed of an elastic material. The hearing device is provided with a hook (15), particularly latter housing part. The elastic material is provided as an elstomer material, particularly silicone rubber, thermoplastic elastomers or Viton(RTM: Fluoroelastomer).

Description

Die Erfindung betrifft ein Hörgerät.The invention relates to a hearing aid.

In Hörgeräten entstehen akustische Rückkopplungen (Feedback), welche durch verschiedene Konstruktionsmerkmale bedingt sind. Zwei Hauptmerkmale, welche Feedback beeinflussen, sind Gewicht und Länge des Hörgeräts. Daher neigen insbesondere leistungsstarke Hörgeräte (sog. Super Power Geräte) mit einer hohen Verstärkung und schweren Batterien dazu, Feedback im akustischen Bereich zwischen 2 und 6 kHz zu erzeugen. In fast allen Fällen kann daher im Richtmikrofonmodus keine ausreichende Verstärkung erreicht werden. Solche Hörgeräte sind üblicherweise als Hinter-dem-Ohr Hörgerät (HdO) ausgeführt und weisen ein Gehäuse auf, welches hinter dem Ohr mittels einer Aufhängung (Hook) getragen wird. Das Gehäuse umschließt den Lautsprecher (Hörer) und beherbergt Batterien zur Stromversorgung.Hearing aids generate acoustic feedbacks (feedback), which are caused by various design features. Two key features that affect feedback are the weight and length of the hearing aid. Therefore, especially high performance hearing aids (so-called super power devices) with a high gain and heavy batteries tend to generate feedback in the acoustic range between 2 and 6 kHz. In almost all cases, therefore, sufficient amplification can not be achieved in directional microphone mode. Such hearing aids are usually designed as behind-the-ear hearing aids (BTE) and have a housing which is worn behind the ear by means of a hook. The housing encloses the speaker (earphone) and houses batteries for power supply.

Alle Versuche das Rückkopplungsproblem zu lösen, basieren darauf, das Mikrophon vom Gehäuse zu entkoppeln, in dem es aufgehängt ist, oder den Hörer so aufzuhängen, dass so viel Vibrationsenergie wie möglich durch die anwendungsspezifisch geformten Aufhängungen, die aus weichem Gummimaterial gebildet sind, aufgenommen werden ( US 20100208927 ). Diese Konzepte haben physikalische Grenzen und sind meist nicht genügend, um hohe Verstärkung im Richtmikrophonmodus zu erzielen. Bis jetzt gibt es nur eine bekannte Vorrichtung (Sumo von Oticon) mit einem äußerststabilen omnidirektionalen Modus, die aber kein Richtmikrophonmodus anbietet. Es gibt auch ein spezielles Hook Design ( US 20080085024 A1 ), das die Vibrationen verringert. Diese Lösung ist ausreichend für kleinere und weniger leistungsfähige Vorrichtungen, aber stärkere Geräte benötigen andere Lösungen.All attempts to solve the feedback problem are based on decoupling the microphone from the housing in which it is suspended or suspending the handset so as to absorb as much vibrational energy as possible through the custom shaped suspensions formed of soft rubber material ( US 20100208927 ). These concepts have physical limitations and are usually insufficient to achieve high gain in the directional microphone mode. So far, there is only one known device (Sumo of Oticon) with a highly stable omnidirectional mode, but does not offer a directional microphone mode. There is also a special hook design ( US 20080085024 A1 ), which reduces the vibrations. This solution is sufficient for smaller and less powerful devices, but more powerful devices require different solutions.

Aufgabe der Erfindung ist es, ein Hörgerät bereitzustellen, welches verringerte Rückkopplung aufweist. Diese Aufgabe wird durch das Hörgerät gemäß Anspruch 1 gelöst.The object of the invention is to provide a hearing aid which has reduced feedback. This object is achieved by the hearing aid according to claim 1.

Die Erfindung betrifft ein Hörgerät aufweisend ein Gehäuse, in welchem ein Hörer und eine Batterie angeordnet sind, wobei das Gehäuse ein erstes Gehäuseteil und ein zweites Gehäuseteil aufweist, die über eine Verbindung miteinander Verbunden sind, wobei mindestens ein Gehäuseteil oder ein bei der Verbindung vorgesehenes Dämpfungselement aus einem elastischen Material ausgebildet ist.The invention relates to a hearing aid comprising a housing in which a receiver and a battery are arranged, wherein the housing has a first housing part and a second housing part, which are connected to one another via a connection, wherein at least one housing part or a damping element provided in the connection is formed of an elastic material.

Dies kann z.B. ein ringförmiges oder scheibenförmiges Dämpfungselement sein. Das Dämpfungselement ist vorzugsweise zwischen dem ersten und dem zweiten Gehäuseteil angeordnet.This can e.g. be an annular or disc-shaped damping element. The damping element is preferably arranged between the first and the second housing part.

Bevorzugt kann das Hörgerät ein Hinter-dem-Ohr Hörgerät mit einem Hook sein.Preferably, the hearing aid may be a behind-the-ear hearing aid with a hook.

Es ist bevorzugt, dass der Hook das zweite Gehäuseteil bildet, welches über eine Verbindung mit dem ersten Gehäuseteil verbunden ist, und wobei bei der Verbindung ein Dämpfungselement angeordnet ist.It is preferred that the hook forms the second housing part, which is connected via a connection with the first housing part, and wherein a damping element is arranged in the connection.

Es ist bevorzugt, dass das erste Gehäuseteil aus einem elastischen Material ausgebildet ist.It is preferred that the first housing part is formed from an elastic material.

Es ist bevorzugt, dass die Batterie in dem ersten Gehäuseteil angeordnet ist.It is preferred that the battery is arranged in the first housing part.

Es ist bevorzugt, dass der Hörer in dem zweiten Gehäuseteil angeordnet ist.It is preferred that the receiver is arranged in the second housing part.

Es ist besonders bevorzugt, dass die Batterie in dem ersten Gehäuseteil und der Hörer in dem zweiten Gehäuseteil angeordnet ist.It is particularly preferred that the battery is arranged in the first housing part and the receiver in the second housing part.

Es ist bevorzugt, dass der zweite Gehäuseteil aus einem nicht-elastischen Material ausgebildet ist.It is preferred that the second housing part is formed of a non-elastic material.

Es ist ferner bevorzugt, dass das nicht-elastische Material ein Duroplastkunststoff, insbesondere ABS ist.It is further preferred that the non-elastic material is a thermoset plastic, in particular ABS.

Es ist bevorzugt, dass das elastische Material ein Elastomerkunststoff, z.B. Silikongummi, ein Thermoplast-Elastomer (TPE) oder ein Fluorelastomer wie Viton® ist.It is preferred that the elastic material be an elastomeric plastic, e.g. Silicone rubber, a thermoplastic elastomer (TPE) or a fluoroelastomer such as Viton® is.

Es ist bevorzugt, dass die Verbindung zwischen dem ersten und zweiten Gehäuseteil eine Steckverbindung, Schraubverbindung oder Bajonettverbindung ist.It is preferred that the connection between the first and second housing part is a plug connection, screw connection or bayonet connection.

Hohes Gewicht sowie die Länge des Gehäuses sind die Hauptfaktoren für starke Rückkopplung eines Hörgeräts. Dies gilt insbesondere für schwere, leistungsstarke Geräte.High weight as well as the length of the housing are the main factors for strong feedback of a hearing aid. This is especially true for heavy, powerful devices.

Besonders zwei Komponenten tragen zu einem hohen Gewicht bei schweren, leistungsstarken Geräten bei: Die Batterie und der Hörer. Ihr Gewicht kann nicht reduziert werden, ohne Leistungseinbußen hinzunehmen. Es ist jedoch möglich, diese beiden Komponenten in separaten, entkoppelten Gehäuseteilen unterzubringen. Dadurch erhält man ein Hörgerät mit zwei Teilen, die unabhängig von einander vibrieren und die Rückkopplungsfrequenzen werden in einen höheren Frequenzbereich verschoben (≥ 6kHz). Das ist sehr effektiv, da sowohl Länge als auch Gewicht durch die Trennung vibrationstechnisch reduziert werden. Die Entkopplung kann durch ein Dämpfungselement erreicht werden, dass zwischen dem ersten und zweiten Gehäuseteil angeordnet ist, z.B. ein Ring oder eine Scheibe aus dämpfenden Material, z.B. ein Elastomermaterial. Alternativ kann auch ein Gehäuseteil, bevorzugt der Teil, welcher die Batterie enthält, aus einem dämpfenden Material, z.B. ein Elastomermaterial, gebildet werden. Der andere Gehäuseteil kann das Mikrophon und den Hörer aufnehmen und aus einem starren, nicht-elastischen Material, z.B. ein Duroplastmaterial oder ein starres Thermoplastmaterial, gebildet sein.Especially two components contribute to a high weight in heavy, powerful devices: the battery and the handset. Your weight can not be reduced without sacrificing performance. However, it is possible to accommodate these two components in separate, decoupled housing parts. This results in a hearing aid with two parts that vibrate independently of each other and the feedback frequencies are shifted to a higher frequency range (≥ 6kHz). This is very effective, as both length and weight are reduced by vibration vibration. The decoupling can be achieved by a damping element which is arranged between the first and second housing part, for example a ring or a disk of damping material, for example an elastomeric material. Alternatively, a housing part, preferably the part which contains the battery, may be formed from a damping material, eg an elastomeric material. The other housing part can accommodate the microphone and the handset and from a rigid, non-elastic material, such as a thermoset material or a rigid thermoplastic material may be formed.

Überraschend haben die Erfinder gefunden, dass bereits eine Entkopplung des Hooks vom restlichen Gehäuse durch eine Verbindung, die ein Dämpfungselement enthält, eine effektive Maßnahme zur Reduktion von Rückkopplungen ist. Eine noch effektivere Dämpfung ist möglich, wenn das Gehäuse in zwei Gehäuseteile aufgeteilt ist, wobei in einem Gehäuseteil die Batterie und im anderen Gehäuseteil der Hörer untergebracht ist und wobei ein Gehäuseteil aus einem elastischen oder weichen dämpfenden Material gebildet ist oder ein Dämpfungselement zwischen den beiden Gehäuseteilen angeordnet ist. Die Ausführungsform mit einem Gehäuseteil aus einem elastischen oder weichen dämpfenden Material hat sich in Versuchen als die effektivste Maßnahme zur Unterdrückung von Rückkopplungen erwiesen.Surprisingly, the inventors have found that already a decoupling of the hook from the rest of the housing by a compound containing a damping element is an effective measure for the reduction of feedback. An even more effective damping is possible if the housing is divided into two housing parts, wherein in one housing part the battery and the other housing part of the listener is housed and wherein a housing part made of an elastic or soft damping material or a damping element between the two housing parts is arranged. The embodiment with a housing part made of an elastic or soft damping material has proved in experiments as the most effective measure for suppressing feedback.

Im Folgenden wird die Erfindung beispielhaft beschrieben anhand der Figuren, welche zeigen:

Figur 1
ein Hörgerät gemäß dem Stand der Technik;
Figur 2
eine erste Ausführungsform eines erfindungsgemäßen Hörgeräts;
Figur 3
eine zweite Ausführungsform eines erfindungsgemäßen Hörgeräts;
Figur 4
eine dritte Ausführungsform eines erfindungsgemäßen Hörgeräts;
Figur 5
den Hook mit Verbindungselement gemäß der dritten Ausführungsform eines erfindungsgemäßen Hörgeräts in einer Explosionsansicht;
Figur 6
den Hook mit Verbindungselement gemäß der dritten Ausführungsform eines erfindungsgemäßen Hörgeräts in einer Schnittansicht;
Figur 7
ein Diagramm, welches das Rückkopplungsverhalten des erfindungsgemäßen Hörgeräts gemäß der Ausführungsform nach Figur 2 darstellt; und
Figur 8
ein Diagramm, welches das Rückkopplungsverhalten des erfindungsgemäßen Hörgeräts gemäß der Ausführungsform nach Figur 4 darstellt
The invention will now be described by way of example with reference to the figures, which show:
FIG. 1
a hearing aid according to the prior art;
FIG. 2
a first embodiment of a hearing aid according to the invention;
FIG. 3
a second embodiment of a hearing aid according to the invention;
FIG. 4
a third embodiment of a hearing aid according to the invention;
FIG. 5
the hook with connector according to the third embodiment of a hearing aid according to the invention in an exploded view;
FIG. 6
the hook with connector according to the third embodiment of a hearing aid according to the invention in a sectional view;
FIG. 7
a diagram showing the feedback behavior of the hearing aid according to the invention according to the embodiment according to FIG. 2 represents; and
FIG. 8
a diagram showing the feedback behavior of the hearing aid according to the invention according to the embodiment according to FIG. 4 represents

Figur 1 zeigt schematisch ein HdO Hörgerät 1 gemäß dem Stand der Technik, mit einem starren Gehäuse 11, Mikrofonöffnung 13, Hook 15 und einem Anschluss 17 für einen Hörschlauch (nicht gezeigt), der in das Ohr führt. Das Gehäuse 11 ist einteilig und integral mit dem Hook 15 ausgebildet. FIG. 1 1 schematically shows a BTE hearing aid 1 according to the prior art, with a rigid housing 11, microphone opening 13, hook 15 and a connection 17 for a hearing tube (not shown), which leads into the ear. The housing 11 is integrally formed integrally with the hook 15.

Figur 2 zeigt schematisch eine erste Ausführungsform eines erfindungsgemäßen Hörgeräts 1', mit einem ersten Gehäuseteil 111 und zweiten Gehäuseteil 112. Im ersten Gehäuseteil 111 ist eine Batterie (nicht gezeigt) angeordnet. Im zweiten Gehäuseteil 112 sind das Mikrofon hinter einer Mikrofonöffnung 13 und der Hörer (nicht gezeigt) angeordnet. Der erste Gehäuseteil 111 ist aus einem Elastomerkunststoff gebildet, z.B. TPE. Die Verbindung 19 ist als einfache Steck- oder Rastverbindung ausgeführt. FIG. 2 schematically shows a first embodiment of a hearing aid 1 'according to the invention, with a first housing part 111 and second housing part 112. In the first housing part 111, a battery (not shown) is arranged. In the second housing part 112, the microphone behind a microphone opening 13 and the receiver (not shown) are arranged. The first housing part 111 is formed from an elastomeric plastic, for example TPE. The connection 19 is designed as a simple plug-in or latching connection.

Figur 3 zeigt schematisch eine zweite Ausführungsform eines erfindungsgemäßen Hörgeräts 1', mit einem ersten Gehäuseteil 111 und zweiten Gehäuseteil 112. Im ersten Gehäuseteil 111 ist eine Batterie (nicht gezeigt) angeordnet. Im zweiten Gehäuseteil 112 sind das Mikrofon 13 und der Hörer (nicht gezeigt) angeordnet. Der erste Gehäuseteil 111 ist aus einem Duroplastkunststoff gebildet. Die Verbindung 19' ist als einfache Steckverbindung ausgeführt, wobei ein Dämpfungselement aus Elastomermaterial zwischen dem ersten Gehäuseteil 111 und dem zweiten Gehäuseteil 112 angeordnet ist. FIG. 3 schematically shows a second embodiment of a hearing aid 1 'according to the invention, with a first housing part 111 and second housing part 112. In the first housing part 111, a battery (not shown) is arranged. In the second housing part 112, the microphone 13 and the handset (not shown) are arranged. The first housing part 111 is formed of a Duroplastkunststoff. The connection 19 'is designed as a simple plug connection, wherein a damping element made of elastomeric material between the first housing part 111 and the second housing part 112 is arranged.

Figur 4 zeigt schematisch eine dritte Ausführungsform eines erfindungsgemäßen Hörgeräts, bei welchem der Hook 151 über eine bedämpfte Verbindung 191 mit dem ersten Gehäuseteil 111' verbunden ist. Im ersten Gehäuseteil 111' sind eine Batterie (nicht gezeigt) und der Hörer (nicht gezeigt) angeordnet. FIG. 4 schematically shows a third embodiment of a hearing aid according to the invention, in which the hook 151 is connected via a damped connection 191 with the first housing part 111 '. In the first housing part 111 ', a battery (not shown) and the handset (not shown) are arranged.

Figur 5 zeigt den Hook 151 mit Verbindungselementen 193, 195, 197 gemäß der dritten Ausführungsform aus Figur 4. Die Verbindung umfasst hierbei ein Dämpfungselement 193 aus einem dämpfenden weichen Material, z.B. TPE, und erstes Verbindungselement 195, welche als Bajonettverschluss zusammen wirken. Dazwischen ist ein zweites Verbindungselement 197 angeordnet. Somit sind der Hook 151 und das restliche Gehäuse voneinander entkoppelt. FIG. 5 shows the hook 151 with connecting elements 193, 195, 197 according to the third embodiment FIG. 4 , The connection here comprises a damping element 193 made of a damping soft material, for example TPE, and first connecting element 195, which act together as a bayonet closure. In between, a second connection element 197 is arranged. Thus, the hook 151 and the remaining housing are decoupled from each other.

Figur 6 zeigt den Hook 151 mit Verbindungselementen 193, 195, 197 gemäß der dritten Ausführungsform aus Figur 4 bzw. 5 in einer Schnittansicht. FIG. 6 shows the hook 151 with connecting elements 193, 195, 197 according to the third embodiment FIG. 4 or 5 in a sectional view.

Figur 7 zeigt ein Diagramm, welches das Rückkopplungsverhalten des erfindungsgemäßen Hörgeräts darstellt gemäß der Ausführungsform nach Figur 2 darstellt. Diese Ausführungsform weist einen ersten Gehäuseteil aus elastischem und dämpfendem Material auf, der die Batterie des Hörgeräts umschließt. Die gestrichelte Linie zeigt das Rückkopplungsverhalten eines Hörgeräts mit einem einteiligen, starren Gehäuse gemäß dem Stand der Technik. Bei ca. 4 kHz und 6-7 kHz sind hohe Maxima der Übertragungsfunktion zu sehen, die auf Rückkopplungen in diesen Frequenzbereichen hinweisen (ideal wäre ein linearer Frequenzverlauf ohne Minima oder Maxima). Die durchgezogene dicke Linie zeigt das Rückkopplungsverhalten eines erfindungsgemäßen Hörgeräts mit einem ersten Gehäuseteil aus elastischem und dämpfendem Material. Die durchgezogene dünne Linie zeigt das Rückkopplungsverhalten eines erfindungsgemäßen Hörgeräts mit einem ersten Gehäuseteil aus elastischem und dämpfendem Material und einem Dämpfungselement zwischen Hook und dem restlichen Gehäuse, was einer Kombination der Merkmale der Ausführungsformen nach Figur 2 und Figur 4 entspricht. Bei beiden erfindungsgemäßen Hörgeräten ist zu erkennen, dass die scharf abgegrenzten Maxima bei ca. 4 kHz und 6-7 kHz nicht mehr vorhanden sind und der Frequenzverlauf insgesamt dem angestrebten idealen Frequenzverlauf viel näher kommt. FIG. 7 shows a diagram illustrating the feedback behavior of the hearing aid according to the invention according to the embodiment of FIG FIG. 2 represents. This embodiment has a first housing part made of elastic and damping material, which encloses the battery of the hearing aid. The dashed line shows the feedback behavior of a hearing aid with a one-piece, rigid housing according to the prior art. At approx. 4 kHz and 6-7 kHz high maxima of the transfer function are to be seen, which indicate feedbacks in these frequency ranges (ideal would be a linear frequency curve without minima or maxima). The solid thick line shows the feedback behavior of a hearing aid according to the invention with a first housing part made of elastic and damping material. The solid thin line shows the feedback behavior of a hearing aid according to the invention with a first housing part made of elastic and damping material and a damping element between the hook and the rest of the housing, resulting in a combination of the features of the embodiments FIG. 2 and FIG. 4 equivalent. In the case of both hearing aids according to the invention, it can be seen that the sharply delimited maxima are no longer present at approximately 4 kHz and 6-7 kHz, and the frequency curve as a whole comes much closer to the desired ideal frequency response.

Figur 8 zeigt ein Diagramm, welches das Rückkopplungsverhalten des erfindungsgemäßen Hörgeräts gemäß der Ausführungsform nach Figur 4-6 darstellt. Diese Ausführungsform weist ein Dämpfungselement zwischen Hook und dem restlichen Gehäuse auf. Die gestrichelte Linie zeigt das Rückkopplungsverhalten eines Hörgeräts gemäß dem Stand der Technik mit einem einteiligen, starren Gehäuse. Bei ca. 4 kHz und 6 kHz sind hohe Maxima der Übertragungsfunktion zu sehen. Die durchgezogene dünne Linie zeigt das Rückkopplungsverhalten des erfindungsgemäßen Hörgeräts mit einem Dämpfungselement zwischen Hook und dem restlichen Gehäuse, was der Ausführungsform nach Figuren 4 bis 6 entspricht. Es ist zu erkennen, dass die scharf abgegrenzten Maxima bei ca. 4 kHz und 6 kHz nicht mehr vorhanden sind und der Frequenzverlauf insgesamt dem angestrebten idealen Frequenzverlauf viel näher kommt. Auch diese Dämpfungsmaßnahme ist schon überraschend gut geeignet, Rückkopplungen effektiv zu minimieren, wenn gleich die Konstruktion mit einem Gehäuseteil aus einem elastischen oder weichen dämpfenden Material noch effektiver ist (vgl. Fig. 7, wo die Rückkopplungen bei ca. 6-7 kHz vollständig unterdrückt sind). FIG. 8 shows a diagram showing the feedback behavior of the hearing aid according to the invention according to the embodiment according to Figure 4-6 represents. This embodiment has a damping element between the hook and the rest of the housing. The dashed line shows the feedback behavior of a hearing aid according to the prior art with a one-piece, rigid housing. At approx. 4 kHz and 6 kHz, high maxima of the transfer function can be seen. The solid thin line shows the feedback behavior of the hearing aid according to the invention with a damping element between the hook and the rest of the housing, which is the embodiment according to FIGS. 4 to 6 equivalent. It can be seen that the sharply delimited maxima are no longer present at approx. 4 kHz and 6 kHz, and that the overall frequency curve is much closer to the ideal frequency curve. Also, this damping measure is surprisingly well suited to minimize feedback effectively if the same construction with a housing part made of an elastic or soft damping material is more effective (see. Fig. 7 where the feedback is completely suppressed at about 6-7 kHz).

Claims (11)

Hörgerät (1), aufweisend ein Gehäuse, in welchem ein Hörer und eine Batterie angeordnet sind, wobei das Gehäuse ein erstes Gehäuseteil (111) und ein zweites Gehäuseteil (112, 151) aufweist, die über eine Verbindung (19, 191) miteinander Verbunden sind, wobei mindestens ein Gehäuseteil oder ein bei der Verbindung zwischen den Gehäuseteilen vorgesehenes Dämpfungselement (193) aus einem elastischen Material ausgebildet ist.Hearing aid (1), comprising a housing in which a receiver and a battery are arranged, wherein the housing has a first housing part (111) and a second housing part (112, 151) connected to each other via a connection (19, 191) are, wherein at least one housing part or provided in the connection between the housing parts damping element (193) is formed of an elastic material. Hörgerät (1) nach Anspruch 1, wobei das Hörgerät ein Hinter-dem-Ohr Hörgerät mit einem Hook (15, 151) ist.Hearing aid (1) according to claim 1, wherein the hearing aid is a behind-the-ear hearing aid with a hook (15, 151). Hörgerät (1) nach Anspruch 2, wobei der Hook das zweite Gehäuseteil (151) ist, welches über die Verbindung (191) mit dem ersten Gehäuseteil (111ʹ) verbunden ist, und wobei bei der Verbindung(193, 195, 197) zwischen dem Hook und dem ersten Gehäuseteil ein Dämpfungselement (193) angeordnet ist.Hearing aid (1) according to claim 2, wherein the hook is the second housing part (151) which is connected via the connection (191) to the first housing part (111 '), and wherein in the connection (193, 195, 197) between the Hook and the first housing part, a damping element (193) is arranged. Hörgerät (1) nach Anspruch 1 oder 2, wobei das erste Gehäuseteil (111) aus einem elastischen Material ausgebildet ist.Hearing aid (1) according to claim 1 or 2, wherein the first housing part (111) is formed of an elastic material. Hörgerät (1) nach einem der Ansprüche 1 bis 4, wobei die Batterie in dem ersten Gehäuseteil (111) angeordnet ist.Hearing aid (1) according to one of claims 1 to 4, wherein the battery in the first housing part (111) is arranged. Hörgerät (1) nach einem der Ansprüche 1 bis 5, wobei der Hörer in dem zweiten Gehäuseteil (112) angeordnet ist.Hearing aid (1) according to one of claims 1 to 5, wherein the handset in the second housing part (112) is arranged. Hörgerät (1) nach Anspruch 5 und 6, wobei die Batterie in dem ersten Gehäuseteil (111) und der Hörer in dem zweiten Gehäuseteil (112) angeordnet sind.Hearing aid (1) according to claim 5 and 6, wherein the battery in the first housing part (111) and the handset in the second housing part (112) are arranged. Hörgerät (1) nach einem der Ansprüche 1 bis 7, wobei der zweite Gehäuseteil (112, 151) aus einem nicht-elastischen Material ausgebildet ist.Hearing aid (1) according to one of claims 1 to 7, wherein the second housing part (112, 151) is formed of a non-elastic material. Hörgerät (1) nach Anspruch 8, wobei das nicht-elastische Material ein Duroplastkunststoff, insbesondere ABS ist.Hearing aid (1) according to claim 8, wherein the non-elastic material is a thermoset plastic, in particular ABS. Hörgerät (1) nach einem der Ansprüche 1 bis 9, wobei das elastische Material ein Elastomerkunststoff, insbesondere Silikongummi, TPE oder Viton ist.Hearing aid (1) according to one of claims 1 to 9, wherein the elastic material is an elastomeric plastic, in particular silicone rubber, TPE or Viton. Hörgerät nach einem der Ansprüche 1 bis 10, wobei die Verbindung (19, 191) eine Steckverbindung, Schraubverbindung oder Bajonettverbindung ist.Hearing aid according to one of claims 1 to 10, wherein the connection (19, 191) is a plug connection, screw or bayonet connection.
EP12161537.1A 2011-04-21 2012-03-27 Reduction of acoustic feedback by reducing vibrations in a hearing aid Active EP2515556B1 (en)

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DE102011007848A DE102011007848A1 (en) 2011-04-21 2011-04-21 Reduction of acoustic feedback by vibration shortening of the hearing aid

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JP5888879B2 (en) * 2011-06-02 2016-03-22 株式会社ミツバ Drive device and stop position detection method
CN108886662B (en) * 2016-04-01 2021-07-06 唯听助听器公司 Receiver suspension for hearing assistance device

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US8855346B2 (en) 2014-10-07
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