MAGNET SHIELDING BY USING A NON-MAGNETIC ELEMENT

Abstract

Disclosed is a system comprising a hearing device and a charging device. The charging device is configured for receiving the hearing device and for charging the hearing device. The hearing device comprises a hearing device magnet and a receiving charging element. The charging device comprises a charging device magnet and a supplying charging element. The hearing device magnet and the charging device magnet are configured for retaining the hearing device in the charging device when charging. The supplying charging element is configured for performing the charging of the hearing device. The system comprises a non-magnetic element provided between the hearing device magnet and the charging device magnet, when the hearing device is received in the charging device.

Claims

1. A system comprising: a hearing device; and a charging device configured for receiving the hearing device and for charging the hearing device; wherein the hearing device comprises a hearing device magnet and a receiving charging element; wherein the charging device comprises a charging device magnet and a supplying charging element; wherein the hearing device magnet and the charging device magnet are configured to retain the hearing device with respect to the charging device; the supplying charging element is configured to provide power for charging the hearing device; wherein the system further comprises a non-magnetic element, and wherein at least a part of the non-magnetic element is located between the hearing device magnet and the charging device magnet, when the hearing device is received by the charging device.

2. The system according to claim 1, wherein the at least a part of the non-magnetic element is a part of the charging device.

3. The system according to claim 1, wherein the at least a part of the non-magnetic element is a part of the hearing device.

4. The system according to claim 1, wherein the non-magnetic element is made of metal, plastic, carbon-fibre, paper, and/or textile.

5. The system according to claim 1, wherein the non-magnetic element has a thickness of less than 0.3 mm.

6. The system according to claim 1, wherein the at least a part of the non-magnetic element has a first surface covering the hearing device magnet or the charging device magnet.

7. The system according to claim 6, wherein the non-magnetic element has a second surface along a side of the hearing device magnet or a side of the charging device magnet.

8. The system according to claim 1, wherein the non-magnetic element comprises a first non-magnetic part coupled to the charging device, and a second non-magnetic part coupled to the hearing device.

9. A charging device for receiving and charging a hearing device, the charging device comprising: a magnet; and a charging element; wherein the magnet is configured to retain the hearing device with respect to the charging device; wherein the charging element is configured to provide power for charging the hearing device; and wherein the charging device further comprises a non-magnetic element, wherein at least a part of the non-magnetic element is between the magnet and a part of the hearing device when the hearing device is received by the charging device.

10. The charging device according to claim 9, wherein the non-magnetic element is made of metal, plastic, carbon-fibre, paper, and/or textile.

11. The charging device according to claim 9, wherein the non-magnetic element has a thickness of less than 0.3 mm.

12. The charging device according to claim 9, wherein the at least a part of the non-magnetic element has a first surface covering the magnet.

13. The charging device according to claim 12, wherein the non-magnetic element has a second surface along a side of the magnet.

14. The charging device according to claim 12, further comprising a housing, wherein the first surface of the non-magnetic element is aligned or corresponds with a surface of the housing of the charging device.

15. A hearing device configured to be received and charged by a charging device, the hearing device comprising: a magnet; and a receiving element configured to receive charging power from the charging device; wherein the magnet is configured to retain the hearing device with respect to the charging device; and wherein the hearing device also comprises a non-magnetic element, wherein at least a part of the non-magnetic element is between the magnet and a part of the charging device when the hearing device is received by the charging device.

16. The hearing device according to claim 15, wherein the non-magnetic element is made of metal, plastic, carbon-fibre, paper, and/or textile.

17. The hearing device according to claim 15, wherein the non-magnetic element has a thickness of less than 0.3 mm.

18. The hearing device according to claim 15, wherein the at least a part of the non-magnetic element has a first surface covering the magnet.

19. The hearing device according to claim 18, wherein the non-magnetic element has a second surface along a side of the magnet.

20. The hearing device according to claim 18, further comprising a housing, wherein the first surface of the non-magnetic element is aligned or corresponds with a surface of the housing of the hearing device.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other features and advantages will become readily apparent to those skilled in the art by the following detailed description of exemplary embodiments thereof with reference to the attached drawings, in which:

[0047] FIG. 1 schematically illustrates an exemplary embodiment of a system comprising a hearing device and a charging device.

[0048] FIG. 2 schematically illustrates an exemplary embodiment of a system comprising a first and second hearing device, and a charging device.

[0049] FIG. 3 schematically illustrates an exemplary embodiment of a system comprising a hearing device.

[0050] FIG. 4 schematically illustrates an exemplary embodiment of a system comprising a hearing device.

DETAILED DESCRIPTION

[0051] Various embodiments are described hereinafter with reference to the figures. Like reference numerals refer to like elements throughout. Like elements will, thus, not be described in detail with respect to the description of each figure. It should also be noted that the figures are only intended to facilitate the description of the embodiments. They are not intended as an exhaustive description of the claimed invention or as a limitation on the scope of the claimed invention. In addition, an illustrated embodiment needs not have all the aspects or advantages shown. An aspect or an advantage described in conjunction with a particular embodiment is not necessarily limited to that embodiment and can be practiced in any other embodiments even if not so illustrated, or if not so explicitly described.

[0052] Throughout, the same reference numerals are used for identical or corresponding parts.

[0053] FIG. 1 schematically illustrates an exemplary embodiment of a system 2 comprising a hearing device 4 and a charging device 6. The charging device 6 is configured for receiving the hearing device 4 and for charging the hearing device 4. The hearing device 4 comprises a hearing device magnet 8 and a receiving charging element 10, such as two receiving charging elements 10. The charging device 6 comprises a charging device magnet 12 and a supplying charging element 14, such as two supplying charging elements 14. The hearing device magnet 8 and the charging device magnet 12 are configured for retaining the hearing device 4 in the charging device 6 when charging. The supplying charging element 14 is configured for performing the charging of the hearing device 4. The system 2 comprises a non-magnetic element 16, 16′ provided between the hearing device magnet 8 and the charging device magnet 12, when the hearing device 4 is received in the charging device 6. In this schematic illustration of the system, the non-magnetic element 16 is forming part of the hearing device 4 and is arranged at a surface of the hearing device 4 facing the charging device 6. In this schematic illustration of the system, the non-magnetic element 16′ is forming part of the charging device 6 and is arranged at a surface of the charging device 6 facing the hearing device 4.

[0054] The non-magnetic elements 16, 16′ are provided between the hearing device magnet 8 and the charging device magnet 12 by arranging the non-magnetic elements 16, 16′ at first surfaces 22, 22′ where the hearing device magnet 8 and the charging device magnet 12 are facing each other. The non-magnetic element 16 covers the first surface 22 of the hearing device magnet 8. The non-magnetic element 16 is also arranged at a second surface 24 along the side of the hearing device magnet 8. The non-magnetic element 16′ covers the first surface 22′ of the charging device magnet 12. The non-magnetic element 16′ is also arranged at a second surface 24′ of the charging device magnet 12. The non-magnetic elements 16, 16′ are arranged at both the first surfaces 22, 22′ and the second surfaces 24, 24′. The second surfaces 24, 24′ may be perpendicular to the first surfaces 22, 22′. The non-magnetic elements 16, 16′ covers the entire first surface 22, 22′ of the magnets 8, 12. The non-magnetic element 16, 16′ covers a part of the second surfaces 24, 24′ of the magnets 8, 12. Alternatively, the non-magnetic elements 16, 16′ may cover the entire second surfaces of the magnets.

[0055] The non-magnetic elements 16, 16′ are arranged in the plastic housings 26, 26′ of the hearing device 4 and the charging device 6.

[0056] FIG. 2 schematically illustrates an exemplary embodiment of a system 2, 18 comprising a first and second hearing device 4. FIG. 2 illustrates cavities 20 formed in the charging device 6 shaped to receive at least part of the hearing devices 4. In this embodiment, the charging device 6, i.e. the cavity 20 comprises a non-magnetic element 16′ arranged such to be aligned with the magnets of the hearing device and the charging device (not visible). The cavity 20 also comprises a supplying charging elements 14 arranged on the sides of the magnet for connection with the receiving charging elements 10 of the hearing device 4. The other cavity 20 may comprise the same features as the described cavity 20.

[0057] The non-magnetic elements 16, 16′ are arranged in the plastic housings 26, 26′ of the hearing device 4 and the charging device 6.

[0058] FIG. 3 schematically illustrates an exemplary embodiment of a system 2 comprising a hearing device 4 and a charging device (not shown). The charging device is configured for receiving the hearing device 4 and for charging the hearing device 4. The hearing device 4 comprises a hearing device magnet 8 and a receiving charging element (not shown). The charging device comprises a charging device magnet and a supplying charging element. The hearing device magnet 8 and the charging device magnet are configured for retaining the hearing device 4 in the charging device when charging. The supplying charging element is configured for performing the charging of the hearing device 4. The hearing device 4 comprises a non-magnetic element 16 provided between the hearing device magnet 8 and the charging device magnet, when the hearing device 4 is received in the charging device. In this schematic illustration of the system, the non-magnetic element 16 is forming part of the hearing device 4 and is arranged at a surface of the hearing device 4 facing the charging device.

[0059] The non-magnetic element 16 is provided between the hearing device magnet 8 and the charging device magnet by arranging the non-magnetic element 16 at a first surface 22, where the hearing device magnet 8 and the charging device magnet are facing each other. The non-magnetic element 16 covers the first surface 22 of the hearing device magnet 8. The non-magnetic element 16 is also arranged at a second surface 24 along the side of the hearing device magnet 8. The non-magnetic element 16 is arranged at both the first surface 22 and the second surface 24. The second surface 24 may be perpendicular to the first surface 22. The non-magnetic element 16 covers the entire first surface 22 of the hearing device magnet. The non-magnetic element 16 covers a part of the second surface 24 of the hearing device magnet 8. Alternatively, the non-magnetic element 16 may cover the entire second surface of the magnet.

[0060] The non-magnetic element 16 is arranged in the plastic housing 26 of the hearing device 4.

[0061] As an alternative, the charging device comprises a non-magnetic element provided between the hearing device magnet and the charging device magnet, when the hearing device is received in the charging device. In this alternative, the non-magnetic element is then forming part of the charging device and is arranged at a surface of the charging device facing the hearing device.

[0062] FIG. 4 schematically illustrates an exemplary embodiment of a system 2 comprising a hearing device 4 and a charging device (not shown). The charging device is configured for receiving the hearing device 4 and for charging the hearing device 4. The hearing device 4 comprises a hearing device magnet 8 and a receiving charging elements 10. The charging device comprises a charging device magnet and a supplying charging element. The hearing device magnet 8 and the charging device magnet are configured for retaining the hearing device 4 in the charging device when charging. The supplying charging element is configured for performing the charging of the hearing device 4. The hearing device 4 comprises a non-magnetic element 16 provided between the hearing device magnet 8 and the charging device magnet, when the hearing device 4 is received in the charging device. In this schematic illustration of the system, the non-magnetic element 16 is forming part of the hearing device 4 and is arranged at a surface of the hearing device 4 facing the charging device.

[0063] The non-magnetic element 16 is provided between the hearing device magnet 8 and the charging device magnet by arranging the non-magnetic element 16 at a first surface 22, where the hearing device magnet 8 and the charging device magnet are facing each other. The non-magnetic element 16 covers only the first surface 22 of the magnet 8 in FIG. 4 and no other surfaces of the magnet 8. Alternatively, the non-magnetic element 16 may cover both the first surface 22 of the magnet 8 and one or more other surfaces, such as a second surface, of the magnet(s) as seen in FIG. 1 and FIG. 3.

[0064] The non-magnetic element 16 is arranged in the plastic housing 26 of the hearing device 4.

[0065] As an alternative, the charging device comprises a non-magnetic element provided between the hearing device magnet and the charging device magnet, when the hearing device is received in the charging device. In this alternative, the non-magnetic element is then forming part of the charging device and is arranged at a surface of the charging device facing the hearing device.

[0066] Although particular features have been shown and described, it will be understood that they are not intended to limit the claimed invention, and it will be made obvious to those skilled in the art that various changes and modifications may be made without departing from the scope of the claimed invention. The specification and drawings are, accordingly to be regarded in an illustrative rather than restrictive sense. The claimed invention is intended to cover all alternatives, modifications and equivalents.

[0067] Items:

[0068] 1. A system comprising a hearing device and a charging device, the charging device is configured for receiving the hearing device and for charging the hearing device,

[0069] the hearing device comprises a hearing device magnet and a receiving charging element,

[0070] the charging device comprises a charging device magnet and a supplying charging element;

[0071] the hearing device magnet and the charging device magnet are configured for retaining the hearing device in the charging device when charging,

[0072] the supplying charging element is configured for performing the charging of the hearing device;

[0073] wherein the system comprises a non-magnetic element provided between the hearing device magnet and the charging device magnet, when the hearing device is received in the charging device.

[0074] 2. The system according to item 1, wherein the non-magnetic element is provided in the charging device.

[0075] 3. The system according to item 1, wherein the non-magnetic element is provided in the hearing device.

[0076] 4. The system according to any of the preceding items, wherein the non-magnetic element is made of metal, plastic, carbon-fibre, paper, and/or textile.

[0077] 5. The system according to any of the preceding items, wherein the non-magnetic element has a thickness of less than 0.3 mm.

[0078] 6. The system according to any of the preceding items, wherein the non-magnetic element is provided between the hearing device magnet and the charging device magnet by arranging the non-magnetic element at a first surface where the hearing device magnet and the charging device magnet are facing each other.

[0079] 7. The system according to any of the preceding items, wherein the non-magnetic element is arranged at a second surface along the side of the hearing device magnet and/or the charging device magnet.

[0080] 8. The system according to any of the preceding items, wherein the non-magnetic element comprises a first non-magnetic element in the charging device and a second non-magnetic element in the hearing device.

[0081] 9. A charging device configured for receiving and charging the hearing device, the charging device comprising a charging device magnet and a supplying charging element;

[0082] the charging device magnet being configured for retaining the hearing device in the charging device when charging,

[0083] the supplying charging element being configured for performing the charging of the hearing device;

[0084] wherein the charging device comprises a non-magnetic element, and

[0085] wherein the non-magnetic element is arranged at a first surface where the charging device magnet faces the hearing device, when the hearing device is received in the charging device.

[0086] 10. A hearing device configured to be received and charged by a charging device,

[0087] the hearing device comprises a hearing device magnet and a receiving charging element,

[0088] the hearing device magnet being configured for retaining the hearing device in the charging device when charging,

[0089] wherein the hearing device comprises a non-magnetic element, and

[0090] wherein the non-magnetic element is arranged at a first surface where the hearing device magnet faces the charging device, when the hearing device is received in the charging device.

[0091] 11. A method for arranging a non-magnetic element in a system of item 1, the method comprises:

[0092] arranging the non-magnetic element at a first surface where the hearing device magnet and the charging device magnet are facing each other, and

[0093] wherein the non-magnetic element is arranged at least partly around at least one of the hearing device magnet and the charging device magnet.

[0094] 12. The method according to the preceding item, wherein arranging the non-magnetic element is performed by press-fitting, in-moulding, and/or by gluing.

LIST OF REFERENCES

[0095] 2 hearing device/charger system [0096] 4 hearing device [0097] 6 charging device [0098] 8 hearing device magnet [0099] 10 receiving charging device [0100] 12 charging device magnet [0101] 14 supplying charging element [0102] 16 non-magnetic element of hearing device [0103] 16′ non-magnetic element of charging device [0104] 18 system with two hearing devices and a charger [0105] 20 charger cavity [0106] 22 first surface of hearing device magnet [0107] 22′ first surface of charging device magnet [0108] 24 second surface of hearing device magnet [0109] 24′ second surface of charging device magnet [0110] 26 housing of hearing device [0111] 26′ housing of charging device