EP3863304A1 - Appareil auditif avec antenne à couplage inductif - Google Patents

Appareil auditif avec antenne à couplage inductif Download PDF

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Publication number
EP3863304A1
EP3863304A1 EP20210861.9A EP20210861A EP3863304A1 EP 3863304 A1 EP3863304 A1 EP 3863304A1 EP 20210861 A EP20210861 A EP 20210861A EP 3863304 A1 EP3863304 A1 EP 3863304A1
Authority
EP
European Patent Office
Prior art keywords
arm
hearing aid
conductor
antenna unit
transmitting
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
EP20210861.9A
Other languages
German (de)
English (en)
Other versions
EP3863304C0 (fr
EP3863304B1 (fr
Inventor
Hamed Hasani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sivantos Pte Ltd
Original Assignee
Sivantos Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sivantos Pte Ltd filed Critical Sivantos Pte Ltd
Publication of EP3863304A1 publication Critical patent/EP3863304A1/fr
Application granted granted Critical
Publication of EP3863304C0 publication Critical patent/EP3863304C0/fr
Publication of EP3863304B1 publication Critical patent/EP3863304B1/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
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/554—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired using a wireless connection, e.g. between microphone and amplifier or using Tcoils
    • 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
    • H04R25/658—Manufacture of housing parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • 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
    • 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
    • H04R25/609—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of circuitry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • 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
    • 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
    • H04R2225/51—Aspects of antennas or their circuitry in or for hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones

Definitions

  • the invention relates to a hearing aid which is designed in particular as a classic hearing aid.
  • Hearing aids are typically classic hearing aids that are used to care for the hard of hearing. In a broader sense, however, this term also refers to devices that are designed to support people with normal hearing. Such hearing aids are also referred to as "Personal Sound Amplification Products” or “Personal Sound Amplification Devices” (“PSAD” for short). These are not intended to compensate for hearing loss, but are used specifically to support and improve normal human hearing in specific hearing situations, e.g. to support hunters on the hunt or to support animal observation in order to better perceive animal sounds and other noises made by animals can, for sports reporters, to enable improved speaking and / or speech understanding in complex background noise, for musicians, to reduce the burden on hearing, etc ..
  • PSAD Personal Sound Amplification Devices
  • hearing aids typically have an input transducer, a data and / or signal processing device, which usually includes an amplifier, and an output transducer as essential components.
  • the input transducer is usually formed by an acousto-electrical transducer, that is to say for example by a microphone, and / or by an electromagnetic receiver, for example an induction coil.
  • An electro-acoustic converter is usually used as the output converter, for example a miniature loudspeaker (also referred to as a "listener"), or an electromechanical transducer, for example a bone conduction receiver, and the data and / or signal processing device is usually implemented by an electronic circuit implemented on a printed circuit board.
  • Such hearing aids also typically have an antenna unit or an antenna element as a so-called RF antenna, by means of which the hearing aid can be coupled in terms of signaling, for example, to an operating element (remote control) and / or to another hearing aid.
  • an operating element remote control
  • the same antenna unit or the same antenna element is used for sending and receiving data.
  • a so-called binaural hearing device two such hearing aids or hearing aids are worn by a user, with a wireless signal connection between the antenna units or antenna elements of the hearing aids during operation.
  • data possibly also large amounts of data, are exchanged or transmitted wirelessly between the hearing aids on the right and left ears.
  • the exchanged data and information enable a particularly effective adaptation of the hearing aids to a particular acoustic situation. In particular, this enables a particularly authentic surround sound for the user and improves speech understanding, even in noisy environments.
  • Hearing aids are preferably designed to be particularly space-saving and compact, so that they can be worn as inconspicuously as possible by a hearing aid user. For this reason, ever smaller hearing aids are being produced which are increasingly comfortable to wear and are therefore hardly perceived by a user when they are worn on or in one ear. Due to the resulting reduced installation space, however, it is increasingly difficult to accommodate and / or install conventional antenna units or antenna elements for wireless signal transmission in hearing aids of this type.
  • ITE hearing aids which are usually custom-made and deep in an auditory canal or ear canal of the The hearing aid user.
  • Such hearing aids are preferably designed to be compact in terms of installation space that they are arranged essentially optically invisible in the ear canal when they are worn.
  • the invention is based on the object of specifying an advantageously designed hearing aid.
  • the hearing aid according to the invention is preferably designed as a hearing aid of the type mentioned at the outset and typically as an in-the-ear hearing aid (ITE hearing aid), for example as a canal hearing aid (ITE: In-The-Ear, CIC: Completely-In- Channel, IIC: Invisible-In-The-Channel).
  • ITE hearing aid In-The-Ear
  • CIC Completely-In- Channel
  • IIC Invisible-In-The-Channel
  • the hearing aid has a housing with a base plate, also called a faceplate, and with a housing shell.
  • the housing is preferably designed in two parts and in this case the base plate and the housing shell then form the two parts.
  • the hearing aid also has a number of electrical and / or electronic units, that is to say one or more electrical and / or electronic units, hereinafter also referred to as E units for short, this number of electrical and / or electronic units being attached to the base plate.
  • An input transducer for example a microphone, forms such an E-unit.
  • a battery or an accumulator forms such an electrical unit and / or a data and / or signal processing device mentioned at the beginning, also referred to simply as a data processing unit in the following, forms a corresponding electrical unit.
  • a corresponding data processing unit typically has an amplifier or an amplifier function.
  • the hearing aid has a transmitting and receiving unit for transmitting and receiving electromagnetic waves, this having an electronic circuit for generating a transmission signal and an antenna unit coupled to it or an antenna element coupled to it.
  • This antenna unit typically has or forms an RF antenna of the type mentioned at the beginning. Therefore, in the context of this application, electromagnetic waves are to be understood in particular as radio signals, which are also referred to as RF signals.
  • the transmitting and / or receiving unit is now functionally suitable and set up for generating and / or evaluating RF signals that can be sent or received by means of the antenna unit.
  • the transmission range here is typically less than 18 m and, for example, 10 m.
  • a range is to be understood here in particular as the signal range, i.e. a distance of the respective communication or signal connection that may exist at most between a transmitter and a receiver, so that another Communication between these is possible.
  • the antenna unit is also preferably designed as a radio frequency antenna (RF antenna) or as an RF resonator, for example for 2.4 GHz Bluetooth transmission using an ISM frequency band (ISM: Industrial, Scientific and Medical).
  • RF antenna radio frequency antenna
  • ISM Industrial, Scientific and Medical
  • the antenna unit is therefore suitable and set up for receiving or receiving and sending or emitting electromagnetic radio waves.
  • the hearing aid is preferably arranged essentially completely, but at least partially, in an ear canal or auditory canal of the user.
  • the antenna element and / or the transmitting and / or receiving unit are preferably suitable and set up for correcting attenuations and / or detunings of the RF signals due to the user's head.
  • the antenna unit has a cantilever arm and the transmitting and receiving unit is designed to inductively feed a transmission signal from the electronic circuit into the antenna unit. This means that the antenna unit and the electronic circuit of the transmitter and receiver unit are galvanically separated from one another.
  • the transmitting and receiving unit is more or less shock-resistant or less susceptible to vibrations, since there is no electrically conductive mechanical connection that could break between the antenna unit and the electronic circuit of the transmitting and receiving unit.
  • a cantilever arm is to be understood as meaning, in particular, an elongated conductor element or an elongated conductor track with at least one free end or free end.
  • the antenna unit is designed or configured only for one resonance frequency, depending on the application. In addition, in some design variants the antenna unit only has one free arm.
  • the transmitting and receiving unit has a coupling element, i.e. an inductive coupling element, which is galvanically connected to the electrical circuit and which has a conductor loop or is formed by a conductor loop.
  • a coupling element i.e. an inductive coupling element
  • the conductor loop or conductor loop is designed as a simple conductor loop or it forms a turn of a coil.
  • auxiliary module is in particular integrated into the conductor loop, so that the auxiliary module virtually forms part or a segment of the conductor loop.
  • the auxiliary module is typically an electrical module with an ohmic resistance, with a capacitance and / or with an inductance, for example a capacitor a coil, a resistor or simply a conductor interruption, i.e. a gap, so to speak.
  • the coupling element has two conductor loops arranged next to one another.
  • the two conductor loops are preferably not arranged coaxially and in particular enclose two areas that are spatially separated from one another. It is useful here if the transmitting and receiving unit is set up in such a way that opposite directions of rotation are specified for the two conductor loops for the paths or paths of the current of a transmission signal through the two conductor loops. This then generates magnetic fields with opposite magnetic field directions with the two conductor loops.
  • the two conductor loops are still designed as simple conductor loops or each of the two conductor loops forms one turn of a coil, so that in this case two coils are arranged next to one another.
  • each of the two conductor loops has an auxiliary module of the type mentioned above.
  • the two conductor loops preferably have auxiliary modules of the same type for realizing a symmetrical structure.
  • the coupling element has a common feed line, in particular an elongated feed line, for the two conductor loops, to which the two conductor loops adjoin.
  • the two conductor loops are preferably designed symmetrically and the common feeder is preferably in the plane of symmetry.
  • the feeder has an auxiliary module of the type described above.
  • connection element is preferably designed as a waveguide or as a coaxial cable.
  • the connection element is typically designed as a coplanar waveguide and in particular has three conductor strips. These are expediently arranged parallel to one another, the middle conductor strip then usually being connected to the common supply conductor and the outer conductor strips each being connected to one of the two conductor loops. In such a configuration, when the transmitting and receiving unit is in operation, a signal is typically fed in or read out via the middle conductor strip and a ground potential or reference potential is specified for the outer conductor strips.
  • the antenna unit typically has a feed arm and the aforementioned two conductor loops are preferably arranged symmetrically to the feed arm.
  • An embodiment is particularly favorable in which the aforementioned common feeder is aligned and positioned parallel to the feed arm.
  • the feed arm also forms an S-shaped or Z-shaped conductor structure either alone or together with an adjoining conductor structure. Irrespective of this, in some cases the feeder has an auxiliary module of the type described above.
  • the antenna unit has an electrically conductive auxiliary element, which is designed in particular to shield the cantilever arm from the number of electrical and / or electronic units.
  • a ground potential or reference potential is preferably specified for the auxiliary element when the hearing aid is in operation, the electrically conductive auxiliary element being connected in an electrically conductive manner, for example, to a battery of the hearing aid for this purpose.
  • the shielding effect of the auxiliary element advantageously results in freedom in the design of the hearing aid and in particular in the design of the antenna unit to the effect that when choosing the resonance frequencies or the resonance frequency for the antenna unit Possible interference frequencies from the E-units do not have to be taken into account, so that, as it were, the antenna unit and E-units can be optimized independently of one another.
  • the hearing aid then also has such a simpler amplifier or a simpler data processing unit.
  • a corresponding amplifier can be positioned more freely, i.e. less has to be taken into account when selecting a suitable position for the amplifier. In such cases, it is usually referred to as a "floating amplifier".
  • the hearing aid according to the invention does not have an adaptation element of the type mentioned above in at least one application.
  • the auxiliary element is expediently positioned between the free arm and the number of E-units.
  • the auxiliary element is preferably positioned between the free arm and the electronic circuit of the transmitting and receiving unit.
  • auxiliary element has or forms an arched conductor, a conductor loop or a conductor loop.
  • the shielding element has a conductor loop or conductor loop, the number of E-units is expediently positioned within the conductor loop or the conductor loop and / or the electronic circuit of the transmitting and receiving unit is positioned within the conductor loop or the conductor loop.
  • the shielding element has an arched conductor, this typically at least partially encompasses the number of E units and / or the electronic circuit of the transmitting and receiving unit.
  • a geometry of the auxiliary element in which the auxiliary element is at least approximately ring-shaped, that is to say has a ring shape, is also advantageous.
  • the geometry does not necessarily correspond to a geometric circle.
  • the ring shape is not necessarily closed.
  • the arcuate conductor, the conductor loop or the conductor loop preferably spans at least one arcuate area or angular area of at least 120 °, more preferably of at least 180 ° and in particular of at least 250 ° or of at least 300 °.
  • the free arm at least partially encompasses the auxiliary element and, for example, spans or covers an arcuate area or angular area of at least 90 °.
  • the course of the free arm then preferably follows the course of the auxiliary element in at least one section to a good approximation, the free arm in this area also preferably running at approximately the same distance from the auxiliary element.
  • the free arm is connected to the auxiliary element via a short-circuit arm.
  • the short-circuit arm is typically connected to the free arm at a first end of the free arm.
  • the short-circuit arm also has an auxiliary module of the type described above.
  • the free arm is preferably connected to the auxiliary element via the aforementioned feed arm and / or via an auxiliary module of the type described above.
  • an embodiment variant is expedient in which the auxiliary element and / or the free arm has a free end with a widened end.
  • the free end is typically through a ladder structure, for example a Conductor track, formed, which ends with a widening.
  • the transverse extent in the area of the widening expediently corresponds to at least 1.2 times, preferably at least 1.5 times and more preferably at least 2 times the transverse extent away from the widening or before the start of the widening.
  • auxiliary element and / or the free arm has an auxiliary module of the type described above.
  • an additional arm branches off from the free arm, in particular at a distance from the ends of the free arm.
  • the additional arm is designed as a further free arm, i.e. as an elongated conductor with a free end, and has, for example, a free end with a widened end of the type mentioned above and / or an auxiliary module of the type mentioned above.
  • Such an auxiliary component is typically an electrical component with an ohmic resistance, with a capacitance and / or with an inductance, for example a capacitor, a coil, a resistor or simply a conductor interruption, so basically a gap.
  • the free arm is also connected to the auxiliary element via such an auxiliary module.
  • each end-side widening has a transverse extent which corresponds to at least 1.5 times the transverse extent of the free end away from the end-side widening.
  • the antenna unit is designed in the manner of a so-called PIF antenna (Planar Inverted F-Shaped Antenna).
  • PIF antenna Planar Inverted F-Shaped Antenna
  • a ground potential or reference potential is then typically specified for the auxiliary element when the hearing aid is in operation.
  • a previously mentioned short-circuit arm, a previously mentioned feed arm and the free arm then usually form an F-shaped basic pattern made of a conductive material, for example copper.
  • Another embodiment is preferred in which at least part of the antenna unit, in particular the complete antenna unit, and / or at least part of the coupling element, in particular the complete coupling element, has only a very small extent in one spatial direction, typically less than or equal to 1 mm.
  • the at least one part of the antenna unit, in particular the complete antenna unit, and / or the at least one part of the coupling element, in particular the complete coupling element lies essentially in a plane whose normal is aligned parallel to this spatial direction.
  • At least part of the free arm and / or at least the free arm and / or at least the aforementioned auxiliary element then lies essentially in one plane, for example.
  • the aforementioned conductor loop of the coupling element or the aforementioned two conductor loops essentially lie in one plane.
  • antenna unit is formed by conductor tracks or has at least a number of conductor tracks which are applied, for example, to a substrate or to the base plate, and which, for example, at least part of the cantilever and / or at least the cantilever and / or at least form the aforementioned auxiliary element.
  • the coupling element is formed by a number of conductor tracks or at least has a number of conductor tracks that are applied, for example, to a substrate or to the base plate, and which, for example, form at least the aforementioned conductor loop or the aforementioned two conductor loops.
  • the transmitting and receiving unit has a number of conductor tracks that are applied to a common substrate, a first portion of these conductor tracks forming at least part of the antenna unit, with a second portion of these conductor tracks forming at least part of the coupling element, the the first portion is applied to a first side of the substrate and wherein the second portion is applied to an opposite second side of the substrate.
  • corresponding conductor tracks are, for example, printed on or applied using a coating process.
  • the cantilever arm is designed as an extended cantilever arm and in this case has a conductor extension made of an electrically conductive material, through which, for example, a branching or branching is formed.
  • the cantilever arm is preferably capacitively charged, starting from a configuration of the cantilever arm without a ladder extension, and in this way a resonance condition is typically specified for the antenna unit.
  • a corresponding conductor extension is preferred, but not mandatory, not formed by conductor tracks and also does not lie in the aforementioned plane, which in particular is predetermined by a surface of the aforementioned substrate. Instead, the ladder extension is preferably led out or tipped out of this level.
  • the conductor extension is usually formed, inter alia, by a connecting arm which protrudes from the substrate and is connected to a conductor track end or a widened conductor track end of a conductor track on the substrate.
  • the corresponding conductor track then forms the free arm together with the ladder extension.
  • a transverse conductor connects to the connecting arm, for example, which then forms a T-shape together with the connecting arm.
  • a U-shaped conductor element adjoins the transverse conductor at both ends, the opening of the U-shape preferably facing the substrate.
  • a previously described ladder extension is not part of the free arm but part of the previously described additional arm or adjoins the previously described additional arm. It is also useful if a ground potential or reference potential is specified for the aforementioned auxiliary element during operation of the hearing aid, for example by a battery or an accumulator, and if the auxiliary element quasi forwards this potential to at least one of the aforementioned electrical units, for example the data processing unit of the hearing aid.
  • FIG Fig. 1 reproduced in a simplified and partially transparent illustration and has a housing 4 with a base plate 6 and with a housing shell 8.
  • the housing 4 is designed such that the base plate 6 is reversibly detachably connected to the housing shell 8 when the housing 4 is formed and the base plate 6 can be detached from the housing shell 8 by actuating a push button (not shown) on the base plate 6.
  • E units 10 a number of electrical and / or electronic units, hereinafter referred to as E units 10 for short, are attached to the base plate 6.
  • a battery 12 and a data processing unit 14 each form one of these electrical units 10.
  • the transmitting and receiving unit 18 is designed to transmit and receive electromagnetic waves when the hearing aid 2 is in operation, in particular for communication with a second hearing aid, not shown.
  • Part of the transmitting and receiving unit 18 is the electronic circuit 16 and an antenna unit 20, which in FIG Fig. 2 is reproduced in a first embodiment.
  • That antenna unit 20 is preferably designed in the manner of a so-called PIF antenna and typically has an electrically conductive auxiliary element 22, for which a ground potential or reference potential is preferably specified when the hearing aid 2 is in operation.
  • the auxiliary element 22 is in accordance with the exemplary embodiment Fig. 2 formed by a conductor loop, which in a rough approximation has a ring shape.
  • the auxiliary element 22 surrounds or engages around the aforementioned electrical units 10 and thereby shields a free arm 24 of the antenna unit 20 from these electrical units 10.
  • the auxiliary element 22 and cantilever arm 24 lie in one plane and are each designed as conductor tracks, for example made of copper. Furthermore, these conductor tracks are applied, for example printed, to a first side of a substrate 26.
  • This first page is in Fig. 2 shown.
  • a film forms the substrate 26 and, in order to form the hearing aid 2, this film, together with the conductor tracks already applied, is preferably put over the electrical units 10 and placed on the base plate 6 of the housing 4 and glued to the base plate 6.
  • This situation is in Fig. 5 indicated by a principle drawing. In this case, the E units 10 then penetrate a central opening in the substrate 26.
  • the aforementioned free arm 24 engages around in the exemplary embodiment according to FIG Fig. 2 the auxiliary element 22 is at least partially and is connected at one end to the auxiliary element 22 via a short-circuit arm 28.
  • Complaints from the short-circuit arm 28 branches in the exemplary embodiment according to FIG Fig. 2 in addition, a feed arm 30 extends from the free arm 24, via which the antenna unit 20 is likewise connected to the auxiliary element 22.
  • the transmitting and receiving unit 18 also has a coupling element 32.
  • the coupling element 32 is also formed by conductor tracks and, in this embodiment variant, these conductor tracks are applied to the same substrate 26 as the antenna unit 20, but on the second side of the substrate 26 opposite the first side. This second side is shown in FIG Fig. 3 shown in a first embodiment.
  • the coupling element 32 now forms two conductor loops 34 arranged next to one another.
  • the two conductor loops 34 are like this Fig. 3 can be seen, connected to one another via a common lead 36, to which the two conductor loops 34 are connected.
  • the coupling element 32 is furthermore arranged relative to the antenna unit 20 such that the feeder 36 is arranged in good approximation parallel to the feed arm 30 and the conductor loops 34 are arranged symmetrically to the feed arm 30.
  • This relative arrangement is shown in FIG Fig. 4 shown, in this illustration only the conductor tracks are shown and that substrate 26 is hidden.
  • connection element 38 is designed as a coplanar waveguide which has three conductor strips 40.
  • the three conductor strips 40 are arranged parallel to one another and in a coplanar manner, and the outer two outer conductor strips 40 are each connected to one of the conductor loops 34.
  • the middle conductor strip 40 is additionally connected to the supply line 36 and a signal is fed in or read out via this when the transmitting and receiving unit 18 is in operation.
  • the conductor strips 40 are preferably supplemented by a conductor surface 42, which is applied in particular to the first side of the substrate 30 and which, like the two outer conductor strips 40, has a ground potential or reference potential applied to it when the transmitting and receiving unit 18 is in operation.
  • This ground potential or reference potential is provided by the electronic circuit 16 of the transmitting and receiving unit 18 and supplied via a galvanic connection.
  • auxiliary element 22 is also preferably subjected to a ground potential or reference potential, but in the exemplary embodiment this is provided via a galvanic connection to the battery 12.
  • Auxiliary element 22 and coupling element 32 are galvanically separated from one another.
  • a second embodiment of the coupling element 32 is shown. This differs from the execution according to Fig. 3 above all in that an auxiliary module 44 is integrated in the common supply line 36 and in each of the two conductor loops 34.
  • the structure is preferably designed symmetrically and the three auxiliary modules 44 are in particular auxiliary modules 44 of the same type.
  • an auxiliary module 44 in the sense of this application is typically an electrical module with an ohmic resistance, with a capacitance and / or with an inductance, for example a capacitor, a coil, a resistor or simply a ladder break, so quasi a gap.
  • FIG Fig. 7 A third embodiment of the coupling element 32 is shown in FIG Fig. 7 reproduced.
  • the coupling element 32 has only one conductor loop 46 instead of the two conductor loops 34 described above.
  • FIGS. 8 to 15 Further design variants of the antenna unit 20 are shown in FIGS. 8 to 15 shown.
  • a second variant according to Fig. 8 differs from the execution according to Fig. 2 by the design of the free arm 24 on the one hand and the design of the auxiliary element 22 on the other hand.
  • the auxiliary element 22 according to FIG Fig. 8 no ring shape or at least no closed ring shape, rather the auxiliary element 22 is formed by an arcuate conductor with a free end.
  • the arched conductor spans an arched area or angular area of more than 180 ° and therefore in turn forms a conductor loop or conductor loop.
  • the free end of the auxiliary element 22 and the free end of the free arm 24 are also designed as free ends with an end widening 48, so the corresponding free ends each end with a widening 48.
  • the transverse extent of the free end in the area of the widening is at least 1.2 times, preferably at least 1.5 times and more preferably at least 2 times the transverse extent of the cantilever away from or in front of the widening Beginning of the broadening corresponds.
  • a third variant according to Fig. 9 differs from the execution according to Fig. 8 in that the short-circuit arm 28 is not present.
  • free arm 24 and auxiliary element 22 are only connected to one another via feed arm 30.
  • the feed arm 30, together with the adjoining conductor structure of the free arm 24 and auxiliary element 22, forms a Z-shaped conductor structure or a Z-shaped course of the conductor tracks forming the antenna unit 20.
  • a fourth variant is outlined. This differs from the execution according to Fig. 2 by an auxiliary module 50 of the aforementioned type, which connects the free arm 24 to the auxiliary element 22.
  • branches at the antenna unit 20 according to FIG Fig. 10 branches at the antenna unit 20 according to FIG Fig. 10 an additional arm 52 from the free arm 24, at a distance from the two ends of the free arm 24.
  • This additional arm 52 preferably points away from the auxiliary element 22 and also preferably has a free end with an end widening 48 of the aforementioned type.
  • the further design variants of the antenna unit 20 according to FIGS. 11 to 14 differ from the execution according to Fig. 10 by the position and possibly the design of the auxiliary modules 54 to 60, each auxiliary module 54 to 60 being designed as an auxiliary module of the aforementioned type.
  • the auxiliary modules 54 to 60 are therefore designed in particular as electrical modules of the aforementioned type, but depending on the application possibly as different electrical components.
  • the variant embodiment of the antenna unit 20 according to FIG Fig. 15 represents a modification or further development of the antenna unit 20 according to FIG Fig. 9 when executed according to Fig. 15
  • the cantilever arm 24 is designed as an extended cantilever arm 24 and has a ladder extension 62 made of an electrically conductive material, through which a branching or branching is formed, for example.
  • the ladder extension 62 the free arm 24 is based on the design of the free arm 24 according to FIG Fig. 9 preferably capacitively loaded and a resonance condition for the antenna unit 20 is typically specified in this way.
  • the conductor extension 62 in contrast to the auxiliary element 22, the feed arm 30 and the rest of the free arm 24, is not formed by conductor tracks and is also not in the aforementioned plane, which is predetermined by a surface of the substrate 26. Instead, the ladder extension 62 is quasi led out or tipped out of this plane.
  • the conductor extension 62 is formed, inter alia, by a connecting arm which protrudes from the substrate 26 and has a conductor track end or a widened conductor end of a conductor on the substrate is connected.
  • the corresponding conductor track forms the free arm 24 in the embodiment of the antenna unit 20 according to FIG Fig. 15 with off.
  • the design of the conductor track it corresponds to the design of the antenna unit 20 according to FIG Fig. 9 the free arm 24 forms alone.
  • a transverse conductor that forms a T-shape together with the connecting arm.
  • a U-shaped conductor element adjoins the transverse conductor at both ends, the opening of the U-shape preferably facing the substrate 26.
  • a previously described ladder extension 62 is not part of the free arm 24 but part of the previously described additional arm 52 or adjoins the previously described additional arm 52.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Aerials (AREA)
EP20210861.9A 2020-02-06 2020-12-01 Appareil auditif avec antenne à couplage inductif Active EP3863304B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020201479.5A DE102020201479A1 (de) 2020-02-06 2020-02-06 Hörgerät

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EP3863304A1 true EP3863304A1 (fr) 2021-08-11
EP3863304C0 EP3863304C0 (fr) 2024-04-24
EP3863304B1 EP3863304B1 (fr) 2024-04-24

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US (1) US11490215B2 (fr)
EP (1) EP3863304B1 (fr)
CN (1) CN113225656B (fr)
DE (1) DE102020201479A1 (fr)

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Also Published As

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CN113225656B (zh) 2022-12-13
US20210250710A1 (en) 2021-08-12
CN113225656A (zh) 2021-08-06
DE102020201479A1 (de) 2021-08-12
EP3863304C0 (fr) 2024-04-24
EP3863304B1 (fr) 2024-04-24
US11490215B2 (en) 2022-11-01

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