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EP0660641A1 - Hearing aid to be worn on the head - Google Patents

Hearing aid to be worn on the head Download PDF

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Publication number
EP0660641A1
EP0660641A1 EP94119417A EP94119417A EP0660641A1 EP 0660641 A1 EP0660641 A1 EP 0660641A1 EP 94119417 A EP94119417 A EP 94119417A EP 94119417 A EP94119417 A EP 94119417A EP 0660641 A1 EP0660641 A1 EP 0660641A1
Authority
EP
European Patent Office
Prior art keywords
electrically conductive
hearing aid
housing
aid according
parts
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
EP94119417A
Other languages
German (de)
French (fr)
Other versions
EP0660641B1 (en
Inventor
Wolfram Dipl.-Ing. Meyer (Fh)
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Sivantos GmbH
Original Assignee
Siemens Audiologische Technik GmbH
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Filing date
Publication date
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Application filed by Siemens Audiologische Technik GmbH filed Critical Siemens Audiologische Technik GmbH
Publication of EP0660641A1 publication Critical patent/EP0660641A1/en
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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/021—Behind the ear [BTE] hearing aids
    • H04R2225/0213—Constructional details of earhooks, e.g. shape, material
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/49—Reducing the effects of electromagnetic noise on the functioning of hearing aids, by, e.g. shielding, signal processing adaptation, selective (de)activation of electronic parts in hearing aid

Definitions

  • the invention relates to a hearing aid which can be worn on the head and has a housing in which an amplifier circuit is arranged which comprises at least one microphone, a handset and a battery.
  • CH 664 057 A5 discloses a hearing aid which can be worn on the head and has a housing in which an amplifier circuit is arranged which comprises at least one microphone, a handset and a battery.
  • receiving parts made of a metallic or non-metallic material for electromagnetic shielding of the sound transducer are also provided.
  • hearing aids with a shielding plate for protecting the listener from the magnetic field of a hearing coil or a shielded magnet arrangement for the hearing aid are already known from German utility model GM 87 13 089 and EP 0 352 954 A2.
  • Hearing aids of the type mentioned at the outset can come close to strong transmitters with the hearing-impaired wearer of the hearing aid, e.g. Car telephones, mobile radios or microwave radiation devices.
  • the emitted electromagnetic waves often have a very high field strength.
  • These high-frequency electromagnetic waves can penetrate the hearing aid in particular through openings and have a disruptive effect on the amplifier circuit.
  • the invention has for its object the penetration of high frequency in a hearing aid of the type mentioned at least largely suppress electromagnetic waves via joints and openings.
  • the hearing aid housing has at least two electrically conductive housing parts which can be electrically conductively connected via a high-frequency seal.
  • joints and openings between the housing parts are closed or shielded in a high-frequency manner via the high-frequency seal.
  • high-frequency electromagnetic waves can no longer influence its amplifier circuit or can only influence it to a lesser extent.
  • the high-frequency seal also provides protection against the ingress of the smallest foreign bodies, e.g. Dust and / or moisture or sweat in the installation space of the hearing aid.
  • a hearing aid that can be worn on the head is shown with a hearing aid housing 1 that comprises an upper housing shell 2 and a lower housing shell 3.
  • a support hook 4 which also serves as a sound channel, is attached to a handset outlet 5 of the housing.
  • An operating element 6 protrudes from the upper housing shell 2, e.g. a volume control or potentiometer knob, a switch 7 and a nose 8 of a battery charger.
  • FIG 2 the two housing shells 2, 3 are shown separately.
  • a tab 9 running around the inside of the opening of the housing shell 2 is shown.
  • This tab 9 covers a small gap 10 (parting line), as shown in Figure 3.
  • the gap 10 arises when the two housing shells 2 and 3 are joined between support points which are caused by slight unevenness in the adjacent housing shells.
  • the two housing shells 2, 3 are designed as electrically conductive parts.
  • the tab 9, which runs around the one upper housing shell 2, is also electrically conductive and is integrally connected to the upper housing shell 2.
  • the electrically conductive parts 2, 9 and 3 of the housing 1 can consist, for example, of plastic, which is made conductive by adding electrically conductive powder, for example graphite.
  • the two plastic housing shells 2, 3 are e.g. provided or lined on the inside with an electrically conductive layer 11 or 12.
  • the conductive layers 11, 12 also cover the adjacent abutting edges 13 and 14 of the housing parts 2 and 3, respectively.
  • the electrically conductive layers 11, 12 can be designed to be elastic, so that when the two housing shells 2, 3 are joined, the gap shown in FIG. 3 4 (parting line) can be completely closed due to the elasticity of the layers 11 and 12 covering the abutting edges 13, 14.
  • the elastic and electrically conductive layers 11, 12 of the abutting edges 13 and 14 thus form an elastic high-frequency seal.
  • the layers 11, 12 can consist of an electrically conductive film or of an electrically conductive lacquer layer.
  • the two housing shells 2, 3 are in turn made of plastic with an embedded electrically conductive material.
  • an elastic high-frequency seal 15 running around the abutting edges 13 and 14 of the housing shells 2, 3 is arranged between the abutting edges 13, 14.
  • This high frequency seal 15 can e.g. have a tubular aluminum foil jacket with an elastic core. This also makes it possible to compensate for unevenness in a high-frequency manner and to avoid or bridge a disruptive gap 10.
  • the high-frequency seals shown in FIGS. 3 to 5 can also be provided in combination designs.
  • FIG. 6 shows a section of the upper housing shell 2 which contains an operating element 16.
  • the control element 16 is designed as an electrically conductive part.
  • the adjacent housing shell 2 has, for example, an electrically conductive coating 11 on the inside of the housing.
  • the control element 16 protrudes, for example in the form of a wheel or a roller, partially from an opening 17 in the housing shell 2.
  • an annular gap 18 Between the electrically conductive control element 16 and the Housing shell 2 remains an annular gap 18 which can be sealed by a high-frequency seal 19 of the type described above.
  • the adjacent parts 2 and 16 are connected to one another in an electrically conductive manner to shield external electromagnetic radiation and disruptive housing openings are avoided.
  • FIG. 7 shows the section of the upper housing shell shown in FIG. 6 with a view of the inside of the housing shell (viewed from below on the coating 11 of the housing).
  • the opening 17 is indicated by a dashed line.
  • the control element 16 is arranged within the opening 17.
  • the high-frequency seal 19 closes the gap 18 surrounding the operating element 16.
  • the operating element 16 can be designed to be electrically conductive in various ways, e.g. by manufacturing the wheel 16 from a conductive coated or made conductive or metallized plastic.
  • the hearing aid that can be worn on the head is shown as a hearing aid that can be worn in the ear with a correspondingly shaped housing 20.
  • An amplifier circuit 19 with various electrical or electronic components and with a microphone 21, a receiver 22 and a battery which can be inserted into a battery compartment 23 is arranged in the housing 20.
  • the battery can be replaced via a battery drawer 24 which can be folded out from a faceplate 25.
  • the faceplate 25 forms an outer end of the housing 20 and has an electrically conductive coating 26 to shield external electromagnetic radiation and to protect the amplifier circuit 19 from high-frequency electromagnetic waves.
  • the housing 20 can also have an electrically conductive coating 27 on its surface, for example.
  • the associated contact surfaces 28, 29 of the ITE hearing device housing 20 or the faceplate 25 for the electrically conductive connection are likewise electrically conductive coated or sealed and fastened to one another via an insertable high-frequency seal.
  • FIG. 9 shows the shielded arrangement of the volume control 30 of the ITE hearing aid in the faceplate 25, which is provided with an electrically conductive lining 31 on the inside of the housing.
  • the axis of rotation 32 of the volume control 30 projects through a bore 33 into the hearing aid interior.
  • an annular high-frequency seal 35 with an electrically conductive contact on the lining 31 and the axis of rotation 32 is provided surrounding it.
  • An electrical connection between the electrically conductive housing lining 31, the high-frequency seal 35 and the amplifier circuit 19 is made via the axis of rotation 32 of the volume control 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Adornments (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Telephone Function (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The hearing aid has a housing (1,20) in which an amplifying circuit (19) is arranged, and has at least one microphone (21), an ear phone (22) and a battery. The housing (1,20) includes at least two electrically conductive parts (2,3;20,25). These are electrically connected via a h.f. seal (9,13,14,15,28,29). The seal is preferably an electrically conductive intermediate layer set into the dividing joints of the housing (1,20). The housing parts (20,25) may have an electrically conductive coating (27,26). The seal may be formed as a conductive varnish layer on the adjacent housing parts or may be an electrically conductive foil.

Description

Die Erfindung betrifft ein am Kopf tragbares Hörgerät mit einem Gehäuse, in welchem eine Verstärkerschaltung angeordnet ist, die wenigstens ein Mikrofon, einen Hörer und eine Batterie umfaßt.The invention relates to a hearing aid which can be worn on the head and has a housing in which an amplifier circuit is arranged which comprises at least one microphone, a handset and a battery.

Aus der CH 664 057 A5 ist ein am Kopf tragbares Hörgerät mit einem Gehäuse bekannt, in welchem eine Verstärkerschaltung angeordnet ist, die wenigstens ein Mikrofon, einen Hörer und eine Batterie umfaßt. Bei diesem Hörgerät sind weiterhin Aufnahmeteile aus einem metallischen oder nicht-metallischen Material zur elektromagnetischen Abschirmung des Schallwandlers vorgesehen.CH 664 057 A5 discloses a hearing aid which can be worn on the head and has a housing in which an amplifier circuit is arranged which comprises at least one microphone, a handset and a battery. In this hearing aid, receiving parts made of a metallic or non-metallic material for electromagnetic shielding of the sound transducer are also provided.

Ferner sind aus dem deutschen Gebrauchsmuster GM 87 13 089 und der EP 0 352 954 A2 bereits Hörgeräte mit einem Abschirmblech, zum Schutz des Hörers vom Magnetfeld einer Hörspule, bzw. eine abgeschirmte Magnetanordnung für das Hörgerät bekannt.Furthermore, hearing aids with a shielding plate for protecting the listener from the magnetic field of a hearing coil or a shielded magnet arrangement for the hearing aid are already known from German utility model GM 87 13 089 and EP 0 352 954 A2.

Hörgeräte der eingangs genannten Art können mit dem hörgeschädigten Träger des Hörgerätes in die Nähe starker Sender gelangen, wie z.B. Autotelefon, mobile Funkgeräte oder Mikrowellenbestrahlungsgeräte. In der Nähe eines derartigen Senders haben die abgestrahlten elektromagnetischen Wellen oft eine sehr hohe Feldstärke. Diese hochfrequenten elektromagnetischen Wellen können insbesondere durch Öffnungen in das Hörgerät eindringen und die Verstärkerschaltung störend beeinflussen.Hearing aids of the type mentioned at the outset can come close to strong transmitters with the hearing-impaired wearer of the hearing aid, e.g. Car telephones, mobile radios or microwave radiation devices. In the vicinity of such a transmitter, the emitted electromagnetic waves often have a very high field strength. These high-frequency electromagnetic waves can penetrate the hearing aid in particular through openings and have a disruptive effect on the amplifier circuit.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Hörgerät der eingangs genannten Art das Eindringen hochfrequenter elektromagnetischer Wellen über Fugen und Öffnungen zumindest weitgehend zu unterdrücken.The invention has for its object the penetration of high frequency in a hearing aid of the type mentioned at least largely suppress electromagnetic waves via joints and openings.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale gelöst. Erfindungsgemäß weist das Hörgerätegehäuse mindestens zwei elektrisch leitende Gehäuseteile auf, die über eine Hochfrequenzdichtung elektrisch leitend verbindbar sind. Dadurch werden über die Hochfrequenzdichtung Fugen und Öffnungen zwischen den Gehäuseteilen hochfrequenzdicht verschlossen bzw abgeschirmt. Hochfrequente elektromagnetische Wellen können bei der erfindungsgemäßen Ausbildung des Hörgerätes dessen Verstärkerschaltung nicht mehr oder nur noch in geringerem Maße störend beeinflussen. Darüber hinaus bildet die Hochfrequenzdichtung zugleich einen Schutz gegen das Eindringen von kleinsten Fremdkörpern, wie z.B. Staub und/oder Feuchtigkeit bzw. Schweiß, in den Einbauraum des Hörgerätes.This object is achieved by the features specified in claim 1. According to the invention, the hearing aid housing has at least two electrically conductive housing parts which can be electrically conductively connected via a high-frequency seal. As a result, joints and openings between the housing parts are closed or shielded in a high-frequency manner via the high-frequency seal. In the embodiment of the hearing aid according to the invention, high-frequency electromagnetic waves can no longer influence its amplifier circuit or can only influence it to a lesser extent. In addition, the high-frequency seal also provides protection against the ingress of the smallest foreign bodies, e.g. Dust and / or moisture or sweat in the installation space of the hearing aid.

Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung und in Verbindung mit den Patentansprüchen.Further advantages and details of the invention emerge from the following description of exemplary embodiments with reference to the drawing and in conjunction with the patent claims.

Es zeigen:

  • Figur 1 ein am Kopf hinter dem Ohr oder an einer Hörbrille tragbares Hörgerät,
  • Figur 2 zwei Gehäuseschalen des Hörgerätes nach Figur 1,
  • Figuren 3 bis 5 jeweils im Schnitt wenigstens zwei elektrisch leitende Hörgerätegehäuseteile, die über jeweils eine gesonderte Hochfrequenzdichtung elektrisch leitend aneinander angrenzen,
  • Figur 6 im Schnitt ein in einem Gehäuseteil angeordnetes Bedienelement mit einer zugeordneten HF-Dichtung,
  • Figur 7 eine Ansicht von der Innenseite eines Gehäuses auf ein mit einer HF-Dichtung versehenes Bedienelement gemäß Figur 6,
  • Figur 8 ein weiteres am Kopf tragbares Hörgerät, das in den Gehörgang einsetzbar ist und
  • Figur 9 im Schnitt ein in einem Hörgerätegehäuse angeordnetes drehbares Bedienelement mit einer zugeordneten HF-Dichtung.
Show it:
  • FIG. 1 shows a hearing aid that can be worn on the head behind the ear or on hearing glasses,
  • FIG. 2 shows two housing shells of the hearing device according to FIG. 1,
  • FIGS. 3 to 5 each have an average of at least two electrically conductive hearing aid housing parts, each of which adjoins one another in an electrically conductive manner via a separate high-frequency seal,
  • FIG. 6 shows in section an operating element arranged in a housing part with an associated HF seal,
  • FIG. 7 shows a view from the inside of a housing onto an operating element according to FIG. 6 provided with an HF seal,
  • FIG. 8 another hearing device that can be worn on the head and that can be inserted into the auditory canal and
  • 9 shows in section a rotatable control element arranged in a hearing aid housing with an associated HF seal.

In Figur 1 ist ein am Kopf tragbares Hörgerät (HdO-Hörgerät) mit einem Hörgerätegehäuse 1 dargestellt, das eine obere Gehäuseschale 2 und eine untere Gehäuseschale 3 umfaßt. Ein Traghaken 4, der zugleich als Schallkanal dient, ist an einem Hörerausgangsstutzen 5 des Gehäuses befestigt. Aus der oberen Gehäuseschale 2 ragen ein Bedienelement 6, z.B. ein Lautstärkesteller oder Potentiometerdrehknopf, ein Schalter 7 und eine Nase 8 einer Batterielade.In FIG. 1, a hearing aid (BTE hearing aid) that can be worn on the head is shown with a hearing aid housing 1 that comprises an upper housing shell 2 and a lower housing shell 3. A support hook 4, which also serves as a sound channel, is attached to a handset outlet 5 of the housing. An operating element 6 protrudes from the upper housing shell 2, e.g. a volume control or potentiometer knob, a switch 7 and a nose 8 of a battery charger.

In Figur 2 sind die beiden Gehäuseschalen 2, 3 separat dargestellt. An der oberen Gehäuseschale 2 ist eine an der Innenseite der Öffnung der Gehäuseschale 2 umlaufende Lasche 9 dargestellt. Diese Lasche 9 verdeckt einen kleinen Spalt 10 (Trennfuge), wie in Figur 3 dargestellt ist. Der Spalt 10 entsteht beim Zusammenfügen der beiden Gehäuseschalen 2 und 3 zwischen Auflagepunkten, die durch geringfügige Unebenheiten der aneinander angrenzenden Gehäuseschalen entstehen.In Figure 2, the two housing shells 2, 3 are shown separately. On the upper housing shell 2, a tab 9 running around the inside of the opening of the housing shell 2 is shown. This tab 9 covers a small gap 10 (parting line), as shown in Figure 3. The gap 10 arises when the two housing shells 2 and 3 are joined between support points which are caused by slight unevenness in the adjacent housing shells.

Nach der Erfindung sind die beiden Gehäuseschalen 2, 3 als elektrisch leitende Teile ausgebildet. Die z.B. an der einen, oberen Gehäuseschale 2 umlaufende Lasche 9 ist ebenfalls elektrisch leitend ausgebildet und einstückig mit der oberen Gehäuseschale 2 verbunden. Die elektrisch leitenden Teile 2, 9 und 3 des Gehäuses 1 können z.B. aus Kunststoff bestehen, der durch Beimengung von elektrisch leitfähigem Pulver, z.B. Graphit, leitfähig gemacht ist.According to the invention, the two housing shells 2, 3 are designed as electrically conductive parts. The tab 9, which runs around the one upper housing shell 2, is also electrically conductive and is integrally connected to the upper housing shell 2. The electrically conductive parts 2, 9 and 3 of the housing 1 can consist, for example, of plastic, which is made conductive by adding electrically conductive powder, for example graphite.

Bei der Ausführung nach Figur 4 sind die beiden aus Kunststoff bestehenden Gehäuseschalen 2, 3 z.B. an der Innenseite jeweils mit einer elektrisch leitfähigen Schicht 11 bzw. 12 versehen oder ausgekleidet. Die leitfähigen Schichten 11, 12 bedecken auch die angrenzenden Stoßkanten 13 bzw. 14 der Gehäuseteile 2 bzw. 3. Die elektrisch leitfähigen Schichten 11, 12 können elastisch ausgebildet sein, so daß beim Zusammenfügen der beiden Gehäuseschalen 2, 3 der in Figur 3 dargestellte Spalt 4 (Trennfuge) aufgrund der Elastizität der die Stoßkanten 13, 14 überziehenden Schichten 11 und 12 vollständig schließbar ist. Die elastischen und elektrisch leitenden Schichten 11, 12 der Stoßkanten 13 bzw. 14 bilden damit eine elastische Hochfrequenzdichtung. Die Schichten 11, 12 können aus einer elektrisch leitenden Folie oder aus einer elektrisch leitenden Lackschicht bestehen.In the embodiment according to Figure 4, the two plastic housing shells 2, 3 are e.g. provided or lined on the inside with an electrically conductive layer 11 or 12. The conductive layers 11, 12 also cover the adjacent abutting edges 13 and 14 of the housing parts 2 and 3, respectively. The electrically conductive layers 11, 12 can be designed to be elastic, so that when the two housing shells 2, 3 are joined, the gap shown in FIG. 3 4 (parting line) can be completely closed due to the elasticity of the layers 11 and 12 covering the abutting edges 13, 14. The elastic and electrically conductive layers 11, 12 of the abutting edges 13 and 14 thus form an elastic high-frequency seal. The layers 11, 12 can consist of an electrically conductive film or of an electrically conductive lacquer layer.

Gemäß Figur 1 bestehen die beiden Gehäuseschalen 2, 3 wiederum aus Kunststoff mit einem eingelagerten elektrisch leitfähigen Werkstoff. Zwischen den Stoßkanten 13, 14 ist nach diesem Ausführungsbeispiel eine an den Stoßkanten 13 bzw. 14 der Gehäuseschalen 2, 3 umlaufende elastische Hochfrequenzdichtung 15 angeordnet. Diese Hochfrequenzdichtung 15 kann z.B. eine schlauchförmige Aluminiumfolienummantelung mit einem elastischen Kern aufweisen. Auch dadurch können Unebenheiten hochfrequenzdicht ausgeglichen und ein störender Spalt 10 vermieden bzw. überbrückt werden. Des weiteren können die in den Figuren 3 bis 5 dargestellten Hochfrequenzdichtungen auch in Kombinationsausführungen vorgesehen sein.According to Figure 1, the two housing shells 2, 3 are in turn made of plastic with an embedded electrically conductive material. According to this exemplary embodiment, an elastic high-frequency seal 15 running around the abutting edges 13 and 14 of the housing shells 2, 3 is arranged between the abutting edges 13, 14. This high frequency seal 15 can e.g. have a tubular aluminum foil jacket with an elastic core. This also makes it possible to compensate for unevenness in a high-frequency manner and to avoid or bridge a disruptive gap 10. Furthermore, the high-frequency seals shown in FIGS. 3 to 5 can also be provided in combination designs.

In Figur 6 ist ein Ausschnitt aus der oberen Gehäuseschale 2 dargestellt, der ein Bedienelement 16 enthält. Das Bedienelement 16 ist als elektrisch leitendes Teil ausgebildet. Die angrenzende Gehäuseschale 2 weist z.B. an der Gehäuseinnenseite eine elektrisch leitfähige Beschichtung 11 auf. Das Bedienelement 16 ragt z.B. in Form eines Rädchens oder einer Walze teilweise aus einer Öffnung 17 der Gehäuseschale 2. Zwischen dem elektrisch leitenden Bedienelement 16 und der Gehäuseschale 2 verbleibt ein Ringspalt 18, der durch eine Hochfrequenzdichtung 19 der oben beschriebenen Art abdichtbar ist. Dadurch werden zur Abschirmung einer elektromagnetischen Fremdstrahlung die aneinander angrenzenden Teile 2 und 16 elektrisch leitend miteinander verbunden und störende Gehäuseöffnungen vermieden.FIG. 6 shows a section of the upper housing shell 2 which contains an operating element 16. The control element 16 is designed as an electrically conductive part. The adjacent housing shell 2 has, for example, an electrically conductive coating 11 on the inside of the housing. The control element 16 protrudes, for example in the form of a wheel or a roller, partially from an opening 17 in the housing shell 2. Between the electrically conductive control element 16 and the Housing shell 2 remains an annular gap 18 which can be sealed by a high-frequency seal 19 of the type described above. As a result, the adjacent parts 2 and 16 are connected to one another in an electrically conductive manner to shield external electromagnetic radiation and disruptive housing openings are avoided.

In Figur 7 ist der in Figur 6 dargestellte Ausschnitt der oberen Gehäuseschale mit Blick auf die Gehäuseschaleninnenseite (von unten auf die Beschichtung 11 des Gehäuses gesehen) dargestellt. Die Öffnung 17 ist durch eine strichlierte Linie angedeutet. Innerhalb der Öffnung 17 ist das Bedienelement 16 angeordnet. Die Hochfrequenzdichtung 19 verschließt den um das Bedienelement 16 umlaufenden Spalt 18. Das Bedienelement 16 kann auf verschiedene Weise elektrisch leitfähig ausgebildet sein, z.B. durch Herstellung des Rädchens 16 aus einem leitfähig beschichteten oder leitfähig gemachten oder metallisierten Kunststoff.FIG. 7 shows the section of the upper housing shell shown in FIG. 6 with a view of the inside of the housing shell (viewed from below on the coating 11 of the housing). The opening 17 is indicated by a dashed line. The control element 16 is arranged within the opening 17. The high-frequency seal 19 closes the gap 18 surrounding the operating element 16. The operating element 16 can be designed to be electrically conductive in various ways, e.g. by manufacturing the wheel 16 from a conductive coated or made conductive or metallized plastic.

Im Ausführungsbeispiel nach Figur 8 ist das am Kopf tragbare Hörgerät als in dem Ohr tragbares Hörgerät mit einem entsprechend geformten Gehäuse 20 dargestellt. In dem Gehäuse 20 ist eine Verstärkerschaltung 19 mit verschiedenen elektrischen bzw. elektronischen Bauteilen sowie mit einem Mikrofon 21, einem Hörer 22 und einer in ein Batteriefach 23 einsetzbaren Batterie angeordnet. Die Batterie kann über eine aus einer Faceplate 25 ausklappbare Batterielade 24 ausgewechselt werden. Die Faceplate 25 bildet einen äußeren Abschluß des Gehäuses 20 und weist zur Abschirmung einer elektromagnetischen Fremdstrahlung und zum Schutz der Verstärkerschaltung 19 vor hochfrequenten elektromagnetischen Wellen eine elektrisch leitende Beschichtung 26 auf. In weiterer Ausbildung kann auch das Gehäuse 20 ebenfalls z.B. an seiner Oberfläche eine elektrisch leitende Beschichtung 27 tragen. Schließlich ist es zweckmäßig, wenn die zugeordneten Auflageflächen 28, 29 des IdO-Hörgerätegehäuses 20 bzw. der Faceplate 25 zur elektrisch leitenden Verbindung ebenfalls elektrisch leitend beschichtet bzw. über eine einlegbare Hochfrequenzdichtung gegeneinander abgedichtet und befestigt sind.In the exemplary embodiment according to FIG. 8, the hearing aid that can be worn on the head is shown as a hearing aid that can be worn in the ear with a correspondingly shaped housing 20. An amplifier circuit 19 with various electrical or electronic components and with a microphone 21, a receiver 22 and a battery which can be inserted into a battery compartment 23 is arranged in the housing 20. The battery can be replaced via a battery drawer 24 which can be folded out from a faceplate 25. The faceplate 25 forms an outer end of the housing 20 and has an electrically conductive coating 26 to shield external electromagnetic radiation and to protect the amplifier circuit 19 from high-frequency electromagnetic waves. In a further embodiment, the housing 20 can also have an electrically conductive coating 27 on its surface, for example. Finally, it is expedient if the associated contact surfaces 28, 29 of the ITE hearing device housing 20 or the faceplate 25 for the electrically conductive connection are likewise electrically conductive coated or sealed and fastened to one another via an insertable high-frequency seal.

Figur 9 zeigt die abgeschirmte Anordnung des Lautstärkereglers 30 des IdO-Hörgerätes in der Faceplate 25, die auf der Gehäuseinnenseite mit einer elektrisch leitenden Auskleidung 31 versehen ist. Die Drehachse 32 des Lautstärkereglers 30 ragt durch eine Bohrung 33 in den Hörgeräteinnenraum. Zur Abdichtung und Abschirmung des Ringspaltes 34 zwischen der Bohrung 33 und der Drehachse 32 ist eine ringförmige Hochfrequenzdichtung 35 mit elektrisch leitendem Kontakt an der Auskleidung 31 und die Drehachse 32 umschließend vorgesehen.FIG. 9 shows the shielded arrangement of the volume control 30 of the ITE hearing aid in the faceplate 25, which is provided with an electrically conductive lining 31 on the inside of the housing. The axis of rotation 32 of the volume control 30 projects through a bore 33 into the hearing aid interior. To seal and shield the annular gap 34 between the bore 33 and the axis of rotation 32, an annular high-frequency seal 35 with an electrically conductive contact on the lining 31 and the axis of rotation 32 is provided surrounding it.

Des weiteren kann z.B. über die Drehachse 32 des Lautstärkereglers 30 eine elektrische Verbindung zwischen der elektrisch leitenden Gehäuseauskleidung 31, der Hochfrequenzdichtung 35 und der Verstärkerschaltung 19 hergestellt werden. Andererseits ist es auch möglich, die elektrisch leitenden Teile des Hörgerätegehäuses durch einen nicht gezeichneten Kontakt, z.B. mit einem Pol der Batterie bzw. einem Batteriefederkontakt, zu verbinden, wobei in der elektrischen Leitungsverbindung gegebenenfalls Kondensatoren, Widerstände od. dgl. vorgesehen werden.Furthermore, e.g. An electrical connection between the electrically conductive housing lining 31, the high-frequency seal 35 and the amplifier circuit 19 is made via the axis of rotation 32 of the volume control 30. On the other hand, it is also possible to connect the electrically conductive parts of the hearing aid housing by a contact, not shown, e.g. to connect to a pole of the battery or a battery spring contact, capacitors, resistors or the like being optionally provided in the electrical line connection.

Claims (11)

Am Kopf tragbares Hörgerät mit einem Gehäuse (1, 20), in welchem eine Verstärkerschaltung (19) angeordnet ist, die wenigstens ein Mikrofon (21), einen Hörer (22) und eine Batterie umfaßt,
dadurch gekennzeichnet,
daß das Gehäuse (1, 20) aus mindestens zwei elektrisch leitenden Teilen (2, 3; 20, 25) besteht, die über eine Hochfrequenzdichtung (9; 13, 14; 15; 28, 29) elektrisch leitend verbindbar sind.Hearing aid which can be worn on the head and has a housing (1, 20) in which an amplifier circuit (19) is arranged which comprises at least one microphone (21), a receiver (22) and a battery,
characterized,
that the housing (1, 20) consists of at least two electrically conductive parts (2, 3; 20, 25) which can be electrically conductively connected via a high-frequency seal (9; 13, 14; 15; 28, 29). Hörgerät nach Anspruch 1,
dadurch gekennzeichnet,
daß die Hochfrequenzdichtung als elektrisch leitende Zwischenlage ausgebildet und in die Trennfuge(n) des Gehäuses (1, 20) einlegbar ist.Hearing aid according to claim 1,
characterized,
that the high-frequency seal is designed as an electrically conductive intermediate layer and can be inserted into the joint (s) of the housing (1, 20). Hörgerät nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Hochfrequenzdichtung (13, 14; 15) elastisch ausgebildet ist.Hearing aid according to claim 1 or 2,
characterized,
that the high-frequency seal (13, 14; 15) is elastic. Hörgerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Gehäuseteile (20, 25) eine elektrisch leitfähige Beschichtung (27, 26) aufweisen.Hearing aid according to one of claims 1 to 3,
characterized,
that the housing parts (20, 25) have an electrically conductive coating (27, 26). Hörgerät nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß die Hochfrequenzdichtung aus einer aus Leitlack bestehenden Beschichtung der aneinander angrenzenden Gehäuseteile besteht.Hearing aid according to one of claims 1 to 4,
characterized,
that the high-frequency seal consists of a coating of conductive lacquer on the adjacent housing parts. Hörgerät nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Hochfrequenzdichtung (11, 12) aus einer elektrisch leitenden Folie besteht.Hearing aid according to one of claims 1 to 3,
characterized,
that the high-frequency seal (11, 12) consists of an electrically conductive film. Hörgerät nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß die elektrisch leitenden Teile (2, 9; 3) des Hörgerätegehäuses (1) aus Kunststoff bestehen, dem ein elektrisch leitfähiger Werkstoff beigemengt ist.Hearing aid according to one of claims 1 to 6,
characterized,
that the electrically conductive parts (2, 9; 3) of the hearing aid housing (1) consist of plastic, to which an electrically conductive material is added. Hörgerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß zur Abdichtung und Abschirmung von Trennfugen und/oder Öffnungen des Hörgerätegehäuses elektrisch leitende Hochfrequenzdichtungen (15, 19, 35), bestehend aus einer Metallfolienummantelung mit elastischem Kern, vorgesehen sind.Hearing aid according to one of claims 1 to 7,
characterized,
that electrically conductive high-frequency seals (15, 19, 35), consisting of a metal foil jacket with an elastic core, are provided for sealing and shielding joints and / or openings in the hearing device housing. Hörgerät nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß zur Abdichtung und Abschirmung von Trennfugen (10) an ein Gehäuseteil (2) eine den Fugenspalt überdeckende Lasche (9) angeformt ist und daß zwischen den elektrisch leitenden Gehäuseteilen (2, 9, 3) eine durchgehende elektrisch leitende Hochfrequenzdichtung gebildet ist.Hearing aid according to one of claims 1 to 7,
characterized,
that for sealing and shielding parting lines (10) on a housing part (2) a gap covering the joint gap (9) is formed and that a continuous electrically conductive high-frequency seal is formed between the electrically conductive housing parts (2, 9, 3). Hörgerät nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet,
daß die Verstärkerschaltung (19) an nur einer Stelle eine elektrisch leitende Verbindung (32) mit wenigstens einem elektrisch leitenden Teil (31) des Hörgerätegehäuses aufweist.Hearing aid according to one of claims 1 to 9,
characterized,
that the amplifier circuit (19) has only one electrically conductive connection (32) with at least one electrically conductive part (31) of the hearing aid housing. Hörgerät nach Anspruch 10,
dadurch gekennzeichnet,
daß die elektrisch leitende Verbindung der Verstärkerschaltung mit wenigstens einem Teil des Gehäuses über einen Pol oder einen Federkontakt der Batterie gebildet ist.Hearing aid according to claim 10,
characterized,
that the electrically conductive connection of the amplifier circuit is formed with at least part of the housing via a pole or a spring contact of the battery.
EP94119417A 1993-12-21 1994-12-08 Hearing aid to be worn on the head Revoked EP0660641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4343702A DE4343702C1 (en) 1993-12-21 1993-12-21 Hearing aid worn on the head
DE4343702 1993-12-21

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EP0660641A1 true EP0660641A1 (en) 1995-06-28
EP0660641B1 EP0660641B1 (en) 1997-02-26

Family

ID=6505685

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EP94119417A Revoked EP0660641B1 (en) 1993-12-21 1994-12-08 Hearing aid to be worn on the head

Country Status (8)

Country Link
US (1) US5708720A (en)
EP (1) EP0660641B1 (en)
JP (1) JPH07203594A (en)
AT (1) ATE149277T1 (en)
AU (1) AU673632B2 (en)
CA (1) CA2138449A1 (en)
DE (2) DE4343702C1 (en)
DK (1) DK0660641T3 (en)

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Also Published As

Publication number Publication date
US5708720A (en) 1998-01-13
DE59401858D1 (en) 1997-04-03
EP0660641B1 (en) 1997-02-26
DE4343702C1 (en) 1995-03-09
JPH07203594A (en) 1995-08-04
AU7914994A (en) 1995-06-29
CA2138449A1 (en) 1995-06-22
AU673632B2 (en) 1996-11-14
ATE149277T1 (en) 1997-03-15
DK0660641T3 (en) 1997-09-01

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