Bi-metal coil

• US 20100013345A1
• Filed: 06/26/2006
• Published: 01/21/2010
• Est. Priority Date: 06/26/2006
• Status: Abandoned Application

• Current Assignee: Battelle Energy Alliance LLC (Battelle Memorial Institute)
• Original Assignee: Battelle Energy Alliance LLC (Battelle Memorial Institute)
• Inventors: Spencer, David F., Yarger, Eric J., Richardson, John G., Christiansen, Dale W.
• Application Number:
  US11/475,389
• Publication Number:
  US 20100013345A1
• Time in Patent Office: Days
• US Class Current: 310/216.3
• CPC Class Codes: H01F 27/36 Electric or magnetic shields or screens movable for varying inductance H01F21/10
• CPC Class Codes: H01F 27/361 made of combinations of electrically conductive material and ferromagnetic material
• CPC Class Codes: H01F 27/366 made of ferromagnetic material
• CPC Class Codes: H01F 27/38 Auxiliary core members; Auxiliary coils or windings
• CPC Class Codes: H01F 3/06 made from wires
• CPC Class Codes: H01F 7/0289 Transducers, loudspeakers, moving coil arrangements
• CPC Class Codes: H02K 1/06 characterised by the shape, form or construction
• CPC Class Codes: H02K 3/04 Windings characterised by the conductor shape, form or construction, e.g. with bar conductors

Abstract

A coil comprising an electrical conductive winding and a magnetic conductive winding configured to focus magnetic flux in the electrical conductive winding. The coil may be advantageously employed in electromechanical and electromagnetic devices.

Claims

1. A coil, comprising:

an electrical conductive winding; and

a magnetic conductive winding configured to focus magnetic flux in the electrical conductive winding.

2. The coil of claim 1, further comprising:

a winding form.

3. The coil of claim 2 wherein a first layer on the winding form comprises a layer of the electrical conductive winding.

4. The coil of claim 3 wherein a second layer of the electrical conductive winding is adjacent to the first layer on the winding form.

5. The coil of claim 4 wherein a layer of the magnetic conductive winding is adjacent to the second layer of the electrical conductive winding.

6. The coil of claim 3 wherein a layer of the magnetic conductive winding is adjacent to the first layer on the winding form.

7. The coil of claim 6 wherein a last layer on the winding form comprises a layer of the electrical conductive winding.

8. The coil of claim 3 wherein a last layer on the winding form comprises a layer of the electrical conductive winding.

9. The coil of claim 1 wherein a layer of the magnetic conductive winding is between two layers of the electric conductive winding.

10. The coil of claim 1 wherein a plurality of layers of the magnetic conductive winding is between two layers of the electric conductive winding.

11. The coil of claim 1 wherein the magnetic conductive winding forms a closed loop.

12. The coil of claim 1 wherein the coil has a trapezoidal-shaped portion.

13. The coil of claim 1 wherein the coil is wound around a core.

14. The coil of claim 1 wherein the electrical conductive winding and the magnetic conductive winding together comprise a dual-conductor winding.

15. The coil of claim 1 wherein the magnetic conductive winding comprises a silver/nickel alloy.

16. The coil of claim 1 further comprising a layer of insulating material, wherein the electrical conductive winding comprises a trace formed on the layer of insulation material.

53. The coil of claim 1, further comprising a plurality of insulating substrates wherein the electrical conductive winding and the magnetic conductive winding comprise traces formed on the plurality of insulating substrates.

17. A winding, comprising:

an electrical conductive wire; and

a magnetic conductive wire insulated from and secured to the electrical conductive wire and configured to focus magnetic flux in the electrical conductive wire.

18. The winding of claim 17 wherein the magnetic conductive wire forms a closed loop.

19. The winding of claim 17 wherein the magnetic conductive wire is secured to the magnetic conductive wire by an insulating material.

20. The winding of claim 17 wherein the magnetic conductive wire forms a core of the winding and is surrounded by an insulating layer and the electrical conductive wire surrounds the insulating layer.

21. The winding of claim 20 wherein the electrical conductive wire comprises a stranded wire.

22. A system comprising:

a magnetic structure; and

a coil, the coil comprising;

an electrical conductive winding; and

a magnetic conductive winding configured to focus magnetic flux in the electrical conductive winding.

23. The system of claim 22 wherein the system is configured to receive energy and to generate an electrical signal in response to the receipt of the energy.

24. The system of claim 23 further comprising:

a mechanical transmission system configured to receive the energy.

25. The system of claim 24 wherein the mechanical transmission system is coupled to the magnetic structure and configured to move the magnet structure with respect to the coil in response to the receipt of energy.

26. The system of claim 25 wherein the mechanical transmission system is configured to move the magnetic structure in a linear manner.

27. The system of claim 25 wherein the mechanical transmission system is configured to move the magnetic structure in a rotational manner.

28. The system of claim 25 wherein the mechanical transmission system is configured to move the magnetic structure in a radial manner.

29. The system of claim 24 wherein the mechanical transmission system is coupled to the coil and configured to move the coil with respect to the magnetic structure in response to the receipt of energy.

30. The system of claim 22 wherein the coil is configured to receive an electrical signal and the system is configured to generate mechanical force in response to the receipt of the electrical signal.

31. The system of claim 30, further comprising:

a mechanical transmission system.

54. The system of claim 22 wherein the coil comprises a plurality of insulating substrates and the electrical conductive winding and the magnetic conductive winding comprise traces formed on the plurality of insulating substrates.

32. A system, comprising:

a coil, comprising;

means for conducting an electric signal; and

means for focusing magnetic flux in the means for conducting an electrical signal; and

a magnetic structure.

33. The system of claim 32 wherein the means for focusing magnetic flux comprises a winding comprising a silver/nickel alloy.

34. The system of claim 32 wherein the means for conducting an electrical signal comprises a stranded copper wire.

35. The system of claim 32 wherein the coil further comprises a first insulating substrate and the means for conducting an electrical signal comprises an electrical conductive trace formed on the first insulating substrate.

36. The system of claim 35 wherein the means for focusing magnetic flux comprises a magnetic conductive trace formed on the first insulating substrate.

37. The system of claim 36 wherein the electrical conductive trace is formed on a first surface of the first insulating substrate and the magnetic conductive trace is formed on the first surface of the first insulating substrate.

38. The system of claim 32 wherein the coil further comprises a plurality of insulating substrates and wherein:

the means for conducting an electric signal comprises a plurality of electrical conductive traces formed on selected substrates in the plurality of substrates; and

the means for focusing magnetic flux comprises a plurality of magnetic conductive traces formed on selected substrates in the plurality of substrates.

39. A method for generating an electrical signal, comprising:

causing relative movement between a magnetic structure and an electrical conductive winding; and

focusing magnetic flux generated by the magnetic structure in the electrical conductive winding using a magnetic conductive winding.

40. The method of claim 39, further comprising:

forming a closed loop with the magnetic conductive winding.

41. A coil comprising:

a plurality of insulating substrates;

a plurality of electrical conductive traces formed on a first set of selected substrates in the plurality of substrates; and

a plurality of magnetic conductive traces formed on a second set of selected substrates in the plurality of substrates.

42. The coil of claim 41 wherein the first set of selected substrates comprises every other insulating substrate in the plurality of insulating substrates and the plurality of electrical conductive traces consists of an electrical conductive trace formed on each of the plurality of insulating substrates in the first set of selected substrates.

43. The coil of claim 41 wherein the plurality of electrical conductive traces are electrically coupled in series.

44. The coil of claim 41 wherein the plurality of magnetic conductive traces are electrically coupled together to form a closed loop.

45. A method of generating mechanical force, comprising:

generating a magnetic field;

focusing the magnetic field in an electrical conductive element; and

conducting a current through the electrical conductive element.

46. The method of claim 45 wherein the current is an alternating current.

47. The method of claim 45, further comprising:

applying the mechanical force so as to generate a linear movement in a transmission system.

48. The method of claim 45, further comprising:

applying the mechanical force so as to generate a rotational movement in a transmission system.

49. The method of claim 45, further comprising:

applying the mechanical force so as to generate a radial movement in a transmission system.

50. The method of claim 45 wherein the current is a direct current.

51. The method of claim 45 wherein the electrical conductive element comprises layers of an electrical conductive winding and focusing the magnetic field in the electrical conductive winding comprises inserting a magnetic conductive winding between two layers of the electrical conductive winding.

52. The method of claim 51 wherein the magnetic conductive winding forms a closed loop.