Component arranged directly on a t-coil

• US 7,177,436 B2
• Filed: 03/26/2004
• Issued: 02/13/2007
• Est. Priority Date: 03/26/2004
• Status: Expired due to Fees

• Current Assignee: Sonova AG (Sonova Holding AG)
• Original Assignee: Phonak AG (Sonova Holding AG)
• Inventors: Frieding, Jan, Sudan, Ju
• Primary Examiner(s): Tran; Sinh
• Assistant Examiner(s): Ensey; Brian
• Application Number:
  US10/810,945
• Publication Number:
  US 20050213789A1
• Time in Patent Office: 1,054 Days
• Field of Search: 381/324, 381/331, 381/312, 600/25, 379/52, 379/403, 379/433
• US Class Current: 381/331
• CPC Class Codes: H01F 17/062 Toroidal core with turns of coil around it
• CPC Class Codes: H01F 27/2895 Windings disposed upon ring cores
• CPC Class Codes: H01F 27/292 Surface mounted devices
• CPC Class Codes: H01F 27/40 Structural association with built-in electric component, e.g. fuse
• CPC Class Codes: H01F 41/10 Connecting leads to windings making electric connections in general H01R43/00
• CPC Class Codes: H04R 2225/51 Aspects of antennas or their circuitry in or for hearing aids
• CPC Class Codes: H04R 25/554 using a wireless connection, e.g. between microphone and amplifier or using Tcoils

Abstract

At small electric devices, such as in particular medical devices, as e.g. hearing devices, very small electric coils (1) are used. Especially with hearing devices e.g. so-called t-coils are used. Those t-coils are considered and arranged at hearing devices as inductivities with parasitic effects. Due to the very limited space, it is proposed that at very small coils, which are used within the mentioned electric or electronic small devices, the connections of the coil (5, 7) are interlinked directly at the coil (1) over a component (9), an assembly group and/or a circuit. The connections of the coil (5, 7) are arranged on one or more screens or small panels which are firmly arranged on or at the coil comprising so-called pads (6, 8), which connections are interlinked with the use of a capacitor or condenser (9) and onto which pads external connections (11, 13) are directed for the external connecting of the coil.

Claims

1. A coil assembly for a small electric or electronic device comprising at least one small coil having a plurality of connections, wherein the connections are interlinked by a component mounted directly on or at the coil and the component comprises connecting pads for connecting the coil connections to external connections and further comprising a plate, wherein the connecting pads are operatively attached to the plate and wherein external connections are electrically connected to the connection pads.

2. The coil assembly of claim 1, wherein the component further comprises a capacitor, wherein the capacitor lowers the frequency of remote signals received by the coil, wherein the connecting pads are made from a metallic material, and wherein the plate is made of a polymeric material.

3. The coil assembly of claim 2, wherein the at least one small coil comprises a cylinder-like coil, wherein the plurality of connections are on a front side of the coil.

4. The coil assembly of claim 2, wherein the at least one small coil is a ring-shaped coil, wherein the plurality of connections are arranged at a distance from each other such that the plurality of connections are interlinked by the component.

5. The coil assembly of claim 2 further comprising a coil body, at least two coils are arranged on the coil body, wherein the plurality of connections of the at least two coils are interlinked by one of the component.

6. The coil assembly of claim 5, wherein the coil body is one of a cylindrical shape, ring-shape, or U-shaped.

7. The coil assembly of claim 2, wherein the small electric or electronic device is a hearing aid and wherein the coil assembly receives inductive or high-frequency signals.

8. The coil assembly of claim 2, wherein the small electric or electronic device is a remote control device to control eleciric or electronic devices in the medical field such as a hearing aid.

9. The coil assembly of claim 2, wherein the small electric or electronic device transmits telecommunications signals.

10. The coil assembly of claim 1, wherein the connections are directly mounted onto the connecting pads.

11. The coil assembly of claim 10, wherein a plate is mounted directly onto the connecting pads.

12. The coil assembly of claim 11, wherein the plate is coupled to an end face of the coil.

13. The coil assembly of claim 10, wherein external connections are directly mounted onto the connecting pads.

14. The coil assembly of claim 1, further comprising a capacitor directly mounted onto the coil.

15. The coil assembly of claim 1, wherein the component is mounted on an end face of the coil.

16. A method for the production of a coil assembly comprising the steps of:

providing a coil having a plurality of connections, a coil body, a plate, connecting pads operatively connected to the plate;

arranging the coil on the coil body;

directing the plurality of connections to the connecting pads; and

,

interlinking the plurality of connections by a component.

17. The method of claim 16 further comprising the step of connecting external connections to the connecting pads.