DE102020208233A1 - Hearing aid, hearing aid set and hearing aid module - Google Patents

Abstract

The invention relates to a hearing aid (4) having a hearing aid module (12) for supplying electrical energy and having a transmitting and receiving unit (8, 18) for communication with another device (4), the hearing aid module ( 12) has an accumulator (20) and a charging circuit (38) for charging the accumulator (20), the charging circuit (38) being designed for contactless, in particular inductive, charging of the accumulator (20) and a charging conductor loop ( 16), the transmitting and receiving unit (8, 18) having a radio conductor loop (18) and the radio conductor loop (18) being integrated into the hearing aid module (12).

Description

The invention relates to a hearing aid. It also relates to a binaural hearing aid set with two corresponding hearing aids and, moreover, a hearing aid module for such a 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 describes, for example, devices that are designed to support people with normal hearing. Such hearing aids are also known 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 to support sports reporters, to enable improved speaking and / or speech understanding in complex background noise, to support musicians, to reduce the strain on the hearing, etc.

Regardless of the intended use, a hearing aid typically has as essential components, inter alia, an input transducer, a signal or data processing device, which usually includes an amplifier, and an output transducer. 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 electroacoustic transducer is usually used as the output transducer, for example a miniature loudspeaker (also referred to as a "receiver") or an electromechanical transducer, for example a bone conduction receiver, and the signal processing device is usually implemented by an electronic circuit implemented on a printed circuit board.

Proceeding from this, the invention is based on the object of specifying an advantageously designed hearing aid, an advantageously designed hearing aid set and an advantageously designed hearing aid module.

According to the invention, this object is achieved by a hearing aid with the features of claim 1, by a hearing aid set with the features of claim 19, and by a hearing aid module with the features of claim 20. Preferred developments are contained in the dependent claims. The advantages and preferred embodiments cited with regard to the hearing aid can also be applied analogously to the hearing aid set and / or to the hearing aid module, and vice versa.

A hearing aid according to the invention, which is typically designed in the manner of a hearing aid described at the beginning, is preferably part of a binaural hearing aid set according to the invention and has a hearing aid module according to the invention. The hearing aid module according to the invention is primarily designed to supply the hearing aid with electrical energy, so that it can also be referred to as a power module, accumulator module or accumulator pack. The hearing aid furthermore has a transmitting and receiving unit for communication with a further device, preferably with a further hearing aid and in particular with a further hearing aid of the hearing aid set.

The transmitting and receiving unit is typically designed for communication in the near field area and in particular as a so-called magnetically inductive radio system. This means that the transmitting and receiving unit is preferably designed for communication with a further device which is less than 15 m, more preferably less than 10 m and in particular less than 0.5 m away from the hearing aid. The radio frequency, base frequency or carrier frequency f _{radio of} the transmitting and receiving unit used for communication is preferably in the range from 500 kHz to 300 MHz and more preferably in the range from 1 MHz to 50 MHz.

The main components of the hearing aid module include an accumulator and a charging circuit for charging the accumulator. The charging circuit in turn has a charging conductor loop and is designed for contactless, in particular inductive, charging of the accumulator. The radio frequency, base frequency or carrier frequency of the electromagnetic radiation f charging used for _charging is preferably in the range from 20 kHz to 100 MHz, more preferably in the range from 50 kHz to 50 MHz and in particular in the range from 100 kHz to 30 MHz.

Furthermore, the transmitting and receiving unit has a radio conductor loop and the radio conductor loop is integrated into the hearing aid module. The hearing aid is preferably designed in such a way that f _{charging is} smaller than f _radio . The ratio f _radio / f _charging is then preferably in the range 10 to 100 and in particular in the range 20 to 50.

Regardless of this, in a hearing aid according to the invention, there is typically a right implemented compact structure and with the aid of the hearing aid module in particular an at least partially modular structure is implemented. A corresponding hearing aid module is usually prefabricated and installed as part of a final assembly of the hearing aid. In the case of most design variants, the hearing aid module has a type of housing or carrier unit for the other components, parts or assemblies of the hearing aid module. That housing or that carrier unit then typically has a number of fastening elements for mechanically fastening the hearing aid module in the hearing aid and usually a number of connecting elements, for example connection contacts, for electrically connecting the hearing aid module to other components in the hearing aid.

Depending on the embodiment variant, the accumulator forms such a housing or such a carrier unit. In accordance with an alternative embodiment, the hearing aid module has a base body as a housing or carrier unit, which is designed, for example, as a type of hollow body. The accumulator of the hearing aid is then typically arranged and / or fastened in or on such a base body. In addition, parts of the charging circuit are preferably accommodated in the base body and / or attached to the base body.

If the hearing aid module now has a previously mentioned base body, this is preferably made from a ferrimagnetic, in particular a soft magnetic ferrimagnetic material, or has a structure or component made from such a material. Here, the base body is made from a ferrite, for example. The magnetic permeability μ _{base body of} a corresponding aforementioned base body is preferably in a range between 5 and 300 and more preferably in a range between 5 and 100.

Independently of this, such a base body typically extends along a central longitudinal axis and is, for example, designed in the shape of a cylinder, that is, for example, as a cylindrical hollow body.

According to one embodiment variant, the radio conductor loop is further arranged in such a way that it runs in a circumferential direction around the central longitudinal axis and around the base body and / or the accumulator. In addition, depending on the design variant, the radio conductor loop is designed as a coil with several turns, for example as a cylinder coil.

An embodiment is also favorable in which the charging conductor loop is arranged in such a way that it runs in a circumferential direction, ie in particular the aforementioned circumferential direction, around the central longitudinal axis and around the base body and / or the accumulator. Depending on the application, the charging conductor loop is also designed as a coil with several turns, for example as a cylinder coil.

In an advantageous development, the radio conductor loop runs on the one hand in the circumferential direction around the central longitudinal axis and around the base body and / or the accumulator and on the other hand the charging conductor loop is designed in such a way that it runs in the circumferential direction around the central longitudinal axis and around the base body and / or runs around the accumulator.

In addition, a first longitudinal section of the hearing aid module and a second longitudinal section of the hearing aid module typically extend along the central longitudinal axis. The second longitudinal section usually adjoins the first longitudinal section directly in the direction of the central longitudinal axis. It is considered to be advantageous if the charging conductor loop is arranged in the first longitudinal section and if the radio conductor loop is arranged in the second longitudinal section. In this case, the charging conductor loop and the radio conductor loop are preferably arranged next to one another as seen in the direction of the central longitudinal axis. In addition, the charging conductor loop and the radio conductor loop are preferably spatially separated from one another and accordingly a distance between the charging conductor loop and the radio conductor loop is then provided and left in the direction of the central longitudinal axis.

It is also useful if the charging conductor loop is in contact with the accumulator or the aforementioned base body. The charging conductor loop is then, for example, applied directly or immediately to the accumulator or the base body, for example printed on or wound up. According to one embodiment variant, the charging conductor loop is glued onto the accumulator or the base body.

In accordance with an alternative embodiment variant, the charging conductor loop rests against the accumulator or the aforementioned base body with an additional element in between. A corresponding additional element is then formed, for example, by a coating or a film or has a coating or a film. Such an additional element is also preferably made from a ferrimagnetic, in particular a soft magnetic ferrimagnetic material, or has a structure or component made from such a material. Here, the additional element is made from a ferrite, for example. The magnetic permeability μ _{base body of} a corresponding previously mentioned additional element lies preferably in a range between 5 and 300 and more preferably in a range between 5 and 100.

An embodiment is also typical in which the hearing aid module has a screen body, in particular a screen body that separates the charging conductor loop and the radio conductor loop. A corresponding umbrella body is, for example, a hollow cylindrical body, depending on the configuration. That shield body typically has conductor material or is made of a conductor material and is used for electromagnetic shielding. Copper or a copper alloy, for example, is suitable as the conductor material. According to one embodiment variant, a film, that is to say a shielding film, forms the shielding body, the film being made from copper or a copper alloy, for example. In accordance with a further embodiment variant, the shield body has a conductor structure or a conductor layer, for example a metallic layer or coating, for electromagnetic shielding.

An embodiment is also advantageous in which the charging conductor loop rests against the previously described screen body or, the other way around, in which the screen body rests on the charging conductor loop. According to one embodiment, the screen body is glued to the charging conductor loop.

It is also expedient if the hearing aid module has an auxiliary body in which at least a partial volume typically has ferrimagnetic, in particular soft magnetic ferrimagnetic, properties. A corresponding auxiliary body is, for example, a hollow cylindrical body, depending on the configuration. That auxiliary body usually has ferrimagnetic, in particular soft magnetic ferrimagnetic material, or is made, for example, of a ferrimagnetic, in particular a soft magnetic ferrimagnetic material. According to one embodiment variant, a film, that is to say an auxiliary film, forms the auxiliary body, the film here being made, for example, from a ferrimagnetic, in particular a soft magnetic ferrimagnetic material. According to a further embodiment variant, the auxiliary body has an auxiliary structure or an auxiliary layer which is made, for example, of a ferrimagnetic, in particular a soft magnetic ferrimagnetic, material or at least has ferrimagnetic, in particular soft magnetic ferrimagnetic properties.

Depending on the design variant, the radio conductor loop rests on the auxiliary body described above. The radio conductor loop is applied, for example, directly to the auxiliary body, for example printed on, or wound up. According to one embodiment, the radio conductor loop is glued onto the auxiliary body.

If a corresponding auxiliary body is provided, it is preferably positioned, applied or wound up on a previously described screen body. According to one embodiment variant, the auxiliary body is glued onto the screen body.

It is also advantageous if the auxiliary body described above separates the charging conductor loop and the radio conductor loop.

In accordance with a further embodiment variant, the hearing aid module has a module body which forms the aforementioned umbrella body and / or the aforementioned auxiliary body. Such a module body then has, for example, several layers, in particular in a sandwich construction, with, for example, a layer for electromagnetic shielding having a conductor structure or a conductor layer, and with one layer forming an aforementioned auxiliary layer, which, for example, consists of a ferrimagnetic, in particular a soft magnetic ferrimagnetic material is made or at least has ferrimagnetic, in particular soft magnetic ferrimagnetic, properties.

In an advantageous development, the module body described above furthermore has the radio conductor loop and / or the charging conductor loop, the radio conductor loop and / or the charging conductor loop being designed, for example, as conductor tracks.

Independently of this, a first radial section of the hearing aid module, which in particular has a cylindrical or hollow cylindrical volume, usually extends in a radial direction transversely to the central longitudinal axis. A configuration in which the charging conductor loop is arranged in the first radial section is then typical. In this case, the charging conductor loop is, for example, printed directly onto the accumulator or the base body, or the charging conductor loop is, for example, wound directly onto the accumulator or the base body.

Regardless of this, the maximum expansion of the conductor cross-section (in the case of a round cross-section, the diameter) of the charging conductor loop is typically in the range from 20 μm to 500 μm, preferably in the range from 30 μm to 300 μm and in particular in the range from 40 µm to 100 µm. The conductor cross-section of the charging conductor loop is here usually essentially constant over the course of the charging conductor loop. Copper is preferred as the conductor material for the charging conductor loop. Other materials that are conductive and have practically no magnetic permeability are also useful.

In the case of most design variants, the aforementioned first radial section is followed by an intermediate section of the hearing aid module in the radial direction, which in turn is followed by a second radial section of the hearing aid module. The radio conductor loop is then usually arranged in the second radial section.

In particular, an embodiment of the hearing aid module is preferred in which the charging conductor loop is arranged in the first radial section and in which the radio conductor loop is arranged in the second radial section. The charging conductor loop and the radio conductor loop are then typically spaced apart from one another as seen in the radial direction, the charging conductor loop usually being positioned closer to the central longitudinal axis than the radio conductor loop.

Regardless of this, the maximum expansion of the conductor cross-section of the radio conductor loop (in the case of a round cross-section, the diameter) is preferably in the range from 10 μm to 100 μm and more preferably in the range from 30 μm to 60 μm. The conductor cross-section of the radio conductor loop is here usually essentially constant over the course of the radio conductor loop. Copper is also the preferred conductor material for the radio conductor loop.

Furthermore, an embodiment variant is favorable in which the aforementioned auxiliary body is arranged in the intermediate section described above. The auxiliary body, viewed in the direction of the central longitudinal axis, preferably only extends over the second longitudinal section, wherein the extension, viewed in the direction of the central longitudinal axis, more preferably corresponds approximately to the extension of the radio conductor loop, viewed in the direction of the central longitudinal axis.

Independently of this, as already explained above, an auxiliary film preferably forms the auxiliary body or the auxiliary body has an auxiliary structure or an auxiliary layer which has ferrimagnetic, in particular soft magnetic ferrimagnetic, properties. The auxiliary film, the auxiliary structure or the auxiliary layer preferably has a thickness, thickness or dimension in the radial direction in the range from 20 μm to 300 μm and in particular from 30 μm to 200 μm. It is therefore in particular a very thin film, auxiliary structure or auxiliary layer with a small extent in the radial direction. It is also considered expedient if the radio conductor loop is applied directly to the auxiliary film, auxiliary structure or auxiliary layer or is directly wound up.

As already explained above, in the case of some design variants, the previously described base body is provided, which is made in particular from a ferrimagnetic material and in particular a soft magnetic ferrimagnetic material. If the auxiliary body described above is then also provided, then an auxiliary body is preferably used for the hearing aid module, the magnetic permeability of which is greater than the magnetic permeability of the base body. In the context of this application, the magnetic permeability of the auxiliary body is to be understood in particular as the magnetic permeability of the auxiliary film, auxiliary structure or auxiliary layer described above. The magnetic permeability μ of the base body _{base body} lies, for example, range from 5 to 100 whereas the magnetic permeability μ _{auxiliary film} of the auxiliary sheet or the auxiliary body preferably in the range 30 to 1,000. In addition, μ _{auxiliary film} greater than a * μ _{base body} with a value of a in the range 2 to 20 and in particular in the range 5 to 10 is preferred.

It is also advantageous if the umbrella body described above is arranged in the intermediate section. In some cases, the screen body is arranged in such a way that a spacing in the radial direction is predetermined between the screen body and the charging conductor loop. The corresponding distance is then implemented, for example, by means of a PET film and in particular by means of a so-called Kapton film, which is arranged between the screen body and the charging conductor loop. Alternatively, a corresponding distance is implemented by means of a lacquer layer.

Regardless of this, the aforementioned umbrella body further preferably extends, viewed in the direction of the central longitudinal axis, both over the first longitudinal section and over the second life section. Alternatively, it extends only over the second longitudinal section.

As already explained above, a screen foil preferably forms the screen body or the screen body has a conductor structure or a conductor layer, for example a metallic layer or coating. The shielding film, the conductor structure or the conductor layer preferably has a thickness, thickness or extension in the radial direction in the range from 10 μm to 200 μm and in particular in the range from 20 μm to 100 μm. It it is therefore in particular a very thin film, conductor structure or conductor layer with a small extent in the radial direction.

According to one embodiment, the shielding film, conductor structure or conductor layer also has a number of recesses or openings, for example round, oval or angular holes, the recesses preferably forming a perforation which then typically extends over the entire circumference in the circumferential direction and preferably over the first longitudinal section and in particular only over the first longitudinal section. The number of recesses is typically greater than 10 and in particular greater than 50. It is usually in the range from 50 to 1000.

According to a further embodiment variant, the screen body and in particular the screen foil, the conductor structure or the conductor layer form a gap extending in the direction of the central longitudinal axis, which in particular extends over the entire extent of the screen body, the screen foil, the conductor structure or the conductor layer extends in the direction of the central longitudinal axis. Such a gap is then supplemented, depending on the embodiment variant, by a switchable bridging circuit which is designed in such a way that the gap can be bridged via the bridging circuit. This means that the bridging circuit bridges or short-circuits the two edges of the gap in a switching state.

If both an umbrella body and an auxiliary body are provided, the auxiliary body preferably rests directly on the umbrella body, that is to say, for example, is wrapped around the umbrella body. The umbrella body is then typically closer to the central longitudinal axis than the auxiliary body.

As an alternative or in addition to the screen body, a switchable short-circuit conductor loop is provided in the case of at least one embodiment variant. That short-circuit conductor loop is then typically arranged in the intermediate section. It also preferably has a number of turns, which are then usually guided in the circumferential direction around the central longitudinal axis and around the accumulator or the base body. The short-circuit conductor loop also preferably forms a type of coil, in particular a type of cylinder coil, which preferably extends over the first longitudinal section and in particular only over the first longitudinal section. If the short-circuit conductor loop is in the short-circuited switching state, the short-circuit conductor loop shields the charging conductor loop from the radio conductor loop.

A hearing aid module described above also preferably has an outer casing, casing or coating, by means of which the hearing aid module is at least partially closed off from the outside and, in particular, is closed off from the outside in a liquid-tight manner. A corresponding outer casing, casing or coating can be formed, for example, by dipping.

• 1 in einer Blockschaltbilddarstellung ein binaurales Hörgeräte-Set mit zwei Hörgeräten, welche jeweils ein Hörgeräte-Modul aufweisen,
• 2 in einer perspektivischen Ansicht eine Baugruppe des Hörgeräte-Moduls in einer ersten Ausführung,
• 3 in der perspektivischen Ansicht die Baugruppe des Hörgeräte-Moduls in einer zweiten Ausführung,
• 4 in der perspektivischen Ansicht die Baugruppe des Hörgeräte-Moduls in einer dritten Ausführung,
• 5 in einer Schnittdarstellung die Baugruppe des Hörgeräte-Hörgeräte-Moduls in einer vierten Ausführung ohne Akkumulator,
• 6 in der Schnittdarstellung die Baugruppe des Hörgeräte-Moduls in der vierten Ausführung ohne Akkumulator zusammen mit einer Baugruppe eines Ladegerätes,
• 7 in der Schnittdarstellung die Baugruppe des Hörgeräte-Moduls in einer fünften Ausführung ohne Akkumulator sowie
• 8 in der Schnittdarstellung die Baugruppe des Hörgeräte-Moduls in einer sechsten Ausführung ohne Akkumulator.

Embodiments of the invention are explained in more detail below with reference to a schematic drawing. Show in it:

• 1 in a block diagram illustration of a binaural hearing aid set with two hearing aids, each of which has a hearing aid module,
• 2 in a perspective view an assembly of the hearing aid module in a first embodiment,
• 3 in the perspective view the assembly of the hearing aid module in a second embodiment,
• 4th in the perspective view the assembly of the hearing aid module in a third embodiment,
• 5 in a sectional view the assembly of the hearing aid hearing aid module in a fourth embodiment without an accumulator,
• 6th in the sectional view the assembly of the hearing aid module in the fourth version without accumulator together with an assembly of a charger,
• 7th in the sectional view the assembly of the hearing aid module in a fifth embodiment without an accumulator and
• 8th in the sectional view the assembly of the hearing aid module in a sixth embodiment without an accumulator.

Corresponding parts are provided with the same reference symbols in each of the figures.

A binaural hearing aid set described below as an example 2 is in 1 shown schematically and has two hearing aids 4th on, namely a hearing aid 4th for a left ear and a hearing aid 4th for a right ear. Here, each of the two hearing aids 4th a number of components or assemblies, including an input transducer 6th , typically a microphone, a control and data processing unit 8th as well as an output converter 10 , for example a loudspeaker.

In addition, each of the two hearing aids 4th a hearing aid module 12th which is used to supply the respective hearing aid 4th is designed with electrical energy. Components of such a hearing aid module 12th are, among other things, a base body in the exemplary embodiment 14th , a charging conductor loop 16 as well as a wireless conductor loop 18th which, together with other components, form an assembly of the hearing aid module 12th train who in 2 to 8th is shown in different design variants.

What these design variants have in common is the design of the base body 14th as a cylindrical base body 14th with an in 5 to 8th shown hollow interior in which an accumulator 20th in the completed state of the hearing aid module 12th is arranged. Next is the base body 14th In all the embodiment variants shown here, made of a soft magnetic ferrimagnetic material with a magnetic permeability μ base body of, for example, 50 and extends along a _{central longitudinal axis} 22nd .

Starting from this central longitudinal axis 22nd can be attached to the hearing aid module 12th a along the central longitudinal axis 22nd extending first longitudinal section 24 assign as well as one in the direction of the central longitudinal axis 22nd adjoining second longitudinal section 26th . In addition, the hearing aid module 12th a moving in a radial direction 28 transverse to the central longitudinal axis 22nd extending first radial section 30th assign one to it in the radial direction 28 subsequent intermediate section 32 as well as a turn to it in the radial direction 28 subsequent second radial section 34 . Here form the intermediate section 32 and the second radial section 34 in each case a hollow cylindrical volume and the first radial section forms a cylindrical volume. This division into sections is in 5 indicated and is valid for almost all of the design variants shown or described here.

2 now shows a first version of the assembly with the bass body 14th , the charging conductor loop 16 and the radio conductor loop 18th . Here, the two conductor loops 16, 18 each form a cylinder coil with several turns, the turns in a circumferential direction 36 around the central longitudinal axis 22nd and around the base body 14th run around.

Regardless of the exact design of the hearing aid module 12th is the charging conductor loop 16 Part of a charging circuit 38 . That charging circuit 38 is preferably designed for inductive charging of the accumulator 20th . A suitable hearing aid 4th is therefore typically designed for inductive charging. The radio conductor loop18, on the other hand, is part of a transmitting and receiving unit, which is usually used for communication between the hearing aids 4th of the hearing aid set 2 is trained. In the exemplary embodiment, the control and data processing units form 8th , a radio circuit 40 , which by the control and data processing unit 8th can be controlled, as well as the wireless conductor loop 18th who have favourited part of the radio circuit 40 is off, the sender and receiver unit is off.

In the variant according to 2 are now the turns of the charging conductor loop 16 around the base body 14th wound and are therefore directly on the base body 14th on. Here are the turns of the charging conductor loop 16 in the first longitudinal section 24 arranged. The turns of the radio conductor loops 18th are, however, in the second longitudinal section 26th arranged and thus the two conductor loops 16, 18 are in the direction of the central longitudinal axis 22nd viewed side by side and in this way also spatially separated from one another.

The turns of the radio conductor loop 18th are in accordance with the exemplary embodiment 2 on one in the intermediate section 32 positioned auxiliary film 42 wrapped and are therefore directly on the auxiliary film 42 on. The auxiliary slide 42 is here just like the base body 14th made of a soft magnetic ferrimagnetic material. However, the magnetic permeability µ _is the auxiliary film of the auxiliary film 42 greater than the magnetic permeability µ _{base body of} the base body 14th and has a value of 500, for example, in the exemplary embodiment. Also is the auxiliary slide 42 in the exemplary embodiment 100 μm thick.

The auxiliary film is also in accordance with 2 in turn around an umbrella film 44 50 µm thick, which is also in the intermediate section 32 is arranged and made of an electrically conductive material, for example copper. The auxiliary film extends here 42 in the case of execution according to 2 in the direction of the central longitudinal axis 22nd seen only over the second longitudinal section 26th whereas the screen foil 44 in the direction of the central longitudinal axis 22nd seen over the first longitudinal section 24 and over the second longitudinal section 26th extends.

A second variant of the in 2 assembly shown is in 3 reproduced. The screen foil differs here 44 according to 3 of the execution according to 2 in that this one extends in the direction of the central longitudinal axis 22nd extend gap 46 forms, which extends over the entire extent of the screen foil 44 in the direction of the central longitudinal axis 22nd extends away. That gap 46 is in the variant shown by a switchable bridging circuit 48 can be bridged or short-circuited, whereby the Bridging circuit 48 a switch for this 50 has, by the control and data processing unit 8th is controllable. The control of the switch 50 takes place in such a way that it is closed when the radio conductor loop 18th is used for communication and is open when the charging conductor loop 16 for charging the accumulator 20th is being used.

Simultaneous use of the charging conductor loop 16 and wireless conductor loop 18th is independent of the design of the hearing aid module 12th typically not provided and in the case of some design variants excluded by a constructive measure and / or suitable programming.

Another variant of the hearing aid module 12th is in 4th indicated. This is where the screen foil extends 44 only over the second longitudinal section 26th . The screen foil is supplemented 44 here through a switchable short-circuit conductor loop 52 , which has several turns. These are from the central longitudinal axis 22nd starting preferably in a level above the charging conductor loop 16 arranged, so in the intermediate section 32 . For realizing a radial distance between the charging conductor loop 16 and the short-circuit conductor loop 52 For example, a lacquer layer (not shown) or a film, for example made of PET, is positioned between these. Part of this short-circuit conductor loop 52 is again a switch 54 by the control and data processing unit 8th is controllable and is controlled in an analogous manner to how the switch 50 in the case of execution according to 3 .

In 5 and 6th a fourth variant is indicated. This is where the screen foil extends 44 both over the first longitudinal section 24 as well as over the second phase of life 26th . The screen film for 44 forms exactly as in the case of the embodiment according to 2 no gap 46 off and is also not with a bypass circuit 48 according to 3 connected. Instead, the screen has foil 44 in the first longitudinal section 24 a perforation 56 on with a number of recesses.

For this embodiment variant are in the two representations according to 5 and 6th Field lines for two operating modes of the associated hearing aid 4th indicated, namely for an operating mode in which the radio conductor loop 18th is used for communication, this is in 5 shown, and for an operating mode in which a coil 58 a charger 60 the charging conductor loop 16 feeds. In both cases, dotted lines sketch the rough course of one or more magnetic field lines.

A fifth variant is in 7th reproduced. Here is the charging ladder loop 16 directly on the base body 14th wound up and preferably fixed by gluing. To make the assembly from base body 14th and charging conductor loop 16 is the screen foil 44 wound, which in the second longitudinal section 26th on the base body 14th and in the first longitudinal section 24 on the charging conductor loop 16 is directly applied and is preferably glued. Around the screen foil 44 again is the auxiliary slide 42 wrapped and preferably glued and around the auxiliary film 42 is the radio conductor loop 18th wrapped and preferably glued in place. The auxiliary film extends here 42 in the case of execution according to 7th in the direction of the central longitudinal axis 22nd seen only over the second longitudinal section 26th whereas the screen foil 44 in the direction of the central longitudinal axis 22nd seen over the first longitudinal section 24 and over the second longitudinal section 26th extends.

After all, in 8th A sixth embodiment variant is also shown, in which, in contrast to the embodiment variants described above, the charging conductor loop 16 and the radio conductor loop 18th are arranged in the same longitudinal section, in which the two conductor loops 16, 18, so to speak, in different positions in the circumferential direction 36 around the base body 14th are wrapped around. The auxiliary foil is between the two conductor loops 16, 18 42 on the one hand and the screen foil 44 on the other hand, arranged so that the two conductor loops 16, 18 are also separated from one another by the two foils 42, 44. Here is the screen foil 44 the charging conductor loop 16 facing and the auxiliary slide 42 is the radio conductor loop 18th facing.

List of reference symbols

2

Hearing aid set

4th

Hearing aid

6th

Input transducer

8th

Control and data processing unit

10

Output converter

12th

Hearing aid module

14th

Base body

16

Charging conductor loop

18th

Radio conductor loop

20th

accumulator

22nd

Central longitudinal axis

24

first longitudinal section

26th

second longitudinal section

28

Radial direction

30th

first radial section

32

Intermediate section

34

second radial section

36

Circumferential direction

38

Charging circuit

40

Radio circuit

42

Auxiliary slide

44

Umbrella foil

46

gap

48

Bridging circuit

50

counter

52

Short circuit conductor loop

54

counter

56

Perforation

58

Kitchen sink

60

charger

Claims (20)

Hearing aid (4) having a hearing aid module (12) for supplying electrical energy and having a transmitting and receiving unit (8, 18) for communication with another device (4), wherein - The hearing aid module (12) has an accumulator (20) and a charging circuit (38) for charging the accumulator (20), - The charging circuit (38) is designed for contactless, in particular inductive, charging of the accumulator (20) and has a charging conductor loop (16), - The transmitting and receiving unit (8, 18) has a radio conductor loop (18) and - The radio conductor loop (18) is integrated into the hearing aid module (12). Hearing aid (4) Claim 1 wherein the accumulator (20) or a base body (14) of the hearing aid module (12) extends along a central longitudinal axis (22) and wherein the radio conductor loop (18) is arranged in such a way that it is around in a circumferential direction (36) the central longitudinal axis (22) and extends around the accumulator (20) or the base body (14). Hearing aid (4) Claim 1 , wherein the accumulator (20) or a base body (14) of the hearing aid module (12) extends along a central longitudinal axis (22) and wherein the charging conductor loop (16) is arranged in such a way that it is around in a circumferential direction (36) the central longitudinal axis (22) and extends around the accumulator (20) or the base body (14). Hearing aid (4) Claim 1 , wherein the accumulator (20) or a base body (14) of the hearing aid module (12) extends along a central longitudinal axis (22), the charging conductor loop (16) being arranged in such a way that it is around in a circumferential direction (36) the central longitudinal axis (22) and runs around the accumulator (20) or the base body (14), and wherein the radio conductor loop (18) is arranged in such a way that it extends in the circumferential direction (36) around the central longitudinal axis (22) and around the accumulator (20) or the base body (14) runs around. Hearing aid (4) according to one of the Claims 1 to 4th , wherein the accumulator (20) or a base body (14) of the hearing aid module (12) extends along a central longitudinal axis (22), a first longitudinal section (24) of the hearing aid module (12) extending along the central longitudinal axis (22) as well as an adjoining second longitudinal section (26) of the hearing aid module (12), the charging conductor loop (16) being arranged in the first longitudinal section (24) and the radio conductor loop (18) being arranged in the second longitudinal section (26) is arranged. Hearing aid (4) according to one of the Claims 1 to 5 , wherein the charging conductor loop (16) rests on the accumulator (20) or on a base body (14) of the hearing aid module (12). Hearing aid (4) according to one of the Claims 1 to 6th wherein the hearing aid module (12) has a screen body (44), in particular a screen film (44). Hearing aid (4) Claim 7 wherein the screen body (44) separates the charging conductor loop (16) and the radio conductor loop (18). Hearing aid (4) according to one of the Claims 1 to 8th wherein the hearing aid module (12) has an auxiliary body (42) in which at least a partial volume has ferrimagnetic, in particular soft magnetic ferrimagnetic properties. Hearing aid (4) according to one of the Claims 1 to 9 , wherein the radio conductor loop (18) rests against the auxiliary body (42). Hearing aid (4) according to one of the Claims 1 to 10 , wherein the accumulator (20) or a base body (14) of the hearing aid module (12) extends along a central longitudinal axis (22), a first radial section (30) of the Hearing aid module (12), an adjoining intermediate section (32) of the hearing aid module (12) and an adjoining second radial section (34) of the hearing aid module (12) extend, the charging conductor loop (16) in the first Radial section (30) is arranged and wherein the radio conductor loop (18) is arranged in the second radial section (34). Hearing aid (4) Claim 11 wherein a ferrimagnetic, in particular soft magnetic ferrimagnetic, auxiliary film (42) is arranged in the intermediate section (32). Hearing aid (4) Claim 12 Wherein the base body (14) is made of a ferrimagnetic material having the magnetic permeability μ _{base body} and the magnetic permeability μ _{basic body} is smaller than the magnetic permeability μ- _{auxiliary film} of the auxiliary film (42). Hearing aid (4) according to one of the Claims 11 to 13th wherein a shielding film (44), in particular made of copper, is arranged in the intermediate section (32). Hearing aid (4) Claim 14 , the shielding film (44) having a number of recesses (56), in particular for forming a perforation (56) in one section. Hearing aid (4) Claim 14 or 15th wherein the screen film (44) forms a gap (46) extending in the direction of the central longitudinal axis (22). Hearing aid (4) Claim 16 wherein the hearing aid module (12) has a switchable bridging circuit (48) such that the gap (46) can be bridged via the bridging circuit (48). Hearing aid (4) according to one of the Claims 11 to 17th wherein a switchable short-circuit conductor loop (52) is arranged in the intermediate section (32). Binaural hearing aid set (2) comprising two hearing aids (4), each of the two hearing aids (4) being designed as a hearing aid (4) according to one of the preceding claims. Hearing aid module (12) designed for a hearing aid (4) according to one of the preceding claims and for supplying it with electrical energy, having an accumulator (20) and a charging circuit (38) for charging the accumulator (20), the charging circuit ( 38) is designed for contactless, in particular inductive, charging of the accumulator (20) and has a charging conductor loop (16), and having a radio conductor loop (18) to form a transmitting and receiving unit (8, 18) of the Hearing aid (4).

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