Neckloop for teleloop hearing aid system

• US 8,494,191 B2
• Filed: 02/17/2010
• Issued: 07/23/2013
• Est. Priority Date: 02/18/2009
• Status: Active Grant

• Current Assignee: Oticon A/S (William Demant Fonden)
• Original Assignee: Oticon A/S (William Demant Fonden)
• Inventors: Holst, Kristian Kiehn
• Primary Examiner(s): Goins, Davetta W
• Assistant Examiner(s): ETESAM, AMIR HOSSEIN
• Application Number:
  US12/707,528
• Publication Number:
  US 20100220841A1
• Time in Patent Office: 1,252 Days
• Field of Search: 381/315, 381/92, 381/309, 381/313, 381/74, 381/370
• US Class Current: 381/309
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils

Abstract

The invention relates to a neckloop for being coupled with a transformer element and for generating an electromagnetic signal for being received by a telecoil of a hearing device or by an induction receiver. In order to avoid strangulation of the person wearing the neckloop the neckloop comprises a teleloop cable having a first end and a second end, and a first magnet and a second magnet for forming a clasp of the neckloop. The first and second magnets are of opposite polarity. The first magnet is provided with a first plating and the second magnet is provided with a second plating. The first plating is in direct contact with the first end and the second plating is in direct contact with the second end.

Claims

1. A neckloop, comprising:

a teleloop cable with an insulation layer, the teleloop cable being electrically or inductively coupled to a transmitter, the teleloop cable including

a first end;

a first magnet at the first end, the first magnet including a first recess;

a second end; and

a second magnet at the second end, the second magnet including a second recess, wherein

the first end of the teleloop cable is inserted into the first recess of the first magnet,

the second end of the teleloop cable is inserted into the second recess of the second magnet,

the first magnet and the second magnet form a releasable clasp of the neckloop,

the first magnet is provided with a first plating,

the second magnet is provided with a second plating,

the first plating is in direct contact with the first end of the teleloop cable, and

the second plating is in direct contact with the second end of the teleloop cable.

2. The neckloop of claim 1, wherein

the material of the first plating and second plating has an electrical conductivity of more than 10,000,000 S/m.

3. Neckloop of claim 1 or 2, wherein the thickness of the first and/or second plating is between 20 μ

m and 40 μ

m.

4. The neckloop of claim 1, further comprising:

an intermediate material layer applied between the first and/or second plating and the first and/or second magnet, respectively.

5. Neckloop of claim 4, wherein the material of the intermediate material layer comprises nickel.

6. The neckloop of claim 1, wherein

when the first and second magnets form the clasp, the contact resistance between the first and second ends is between 0.5 mΩ

and 5 mΩ

.

7. The neckloop of claim 1, wherein

when the first and second magnets form the clasp, a release force for releasing the first and second magnets from each other is between 5N and 50N.

8. The neckloop as claimed in claim 1, wherein

the first and second magnets are partitioned in oppositely polarized pole pairs comprising at least a first and a second pole,

the magnets are arranged such that the clasping force is provided by a single pair of oppositely polarized poles of the first and the second magnets respectively, and

the magnetic force is provided either transversely to the direction of pull when the two magnets of the clasp are pulled apart by a pulling force on the teleloop cable of the neckloop.

9. Neckloop system comprising:

a neckloop according to claim 1, and

a transformer element coupled to the neckloop.

10. Neckloop system of claim 9, wherein the first or the second magnet is provided at the transformer element.

11. Neckloop system of claim 9 or 10, further comprising a wireless receiver.

12. Neckloop system of claim 11, wherein the wireless receiver is provided at the transformer element.

13. Hearing device system comprising:

a neckloop according to claim 1, and

a transformer element coupled to the neckloop, wherein the hearing device system further comprises

a hearing device having a telecoil, or

an induction receiver.

14. The neckloop as claimed in claim 1, wherein

the first and second magnets are partitioned in oppositely polarized pole pairs comprising at least a first and a second pole,

the magnets are arranged such that the clasping force is provided by a single pair of oppositely polarized poles of the first and the second magnets respectively, and

the magnetic force is provided in parallel with the direction of pull when the two magnets of the clasp are pulled apart by a pulling force on the teleloop cable of the neckloop.

15. The neckloop as claimed in claim 1, wherein

the first and second magnets are partitioned in oppositely polarized pole pairs comprising at least a first and a second pole,

the magnets are provided such that the clasping force is provided by at least two oppositely polarized poles of each magnet, and

the magnetic force is provided in parallel with the direction of pull when the two magnets of the clasp are pulled apart by a pulling force on the teleloop cable of the neckloop.

16. The neckloop as claimed in claim 1, wherein

the first and second magnets are partitioned in oppositely polarized pole pairs comprising at least a first and a second pole,

the magnets are provided such that the clasping force is provided by at least two oppositely polarized poles of each magnet, and

the magnetic force is provided transversely to the direction of pull when the two magnets of the clasp are pulled apart by a pulling force on the teleloop cable of the neckloop.

17. The neckloop as claimed in claim 1, wherein

the first plating is provided inside the first recess, and

the second plating is provided inside the second recess.