Electrical energy-generating heat sink system and method of using same to recharge an energy storage device

• US 6,574,963 B1
• Filed: 11/16/2001
• Issued: 06/10/2003
• Est. Priority Date: 11/16/2001
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Tadayon, Pooya, Monzon, Franklin G., Dujari, Prateek
• Primary Examiner(s): NGUYEN, HOANG M
• Application Number:
  US09/991,110
• Publication Number:
  US 20030093995A1
• Time in Patent Office: 571 Days
• Field of Search: 606/51, 606/71, 606/18
• US Class Current: 60/651
• CPC Class Codes: F01K 3/185 using waste heat from outside the plant F02G5/00 takes precedence
• CPC Class Codes: F03G 7/00 Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for

Abstract

An electrical energy-generating heat sink system is described herein that provides a convenient and economical method for continuously recharging an energy storage device in electronic devices.

Claims

1. An electrical energy-generating system comprising:

a heat transfer device responsive to heat generated by a microprocessor;

a vapor pressurizing device thermally coupled to the heat transfer device; and

an electricity-generating device thermally coupled to the vapor-pressurizing device.

2. The electrical energy-generating system of claim 1 wherein the electricity-generating device is further fluidly coupled to the heat transfer device.

3. The electrical energy-generating system of claim 2 wherein the heat transfer device contains a working fluid.

4. The electrical energy-generating system of claim 3 wherein the working fluid is a dielectric.

5. The electrical energy-generating system of claim 4 wherein the dielectric is a hydrofluoroether or chlorofluorocarbon.

6. The electrical energy-generating system of claim 4 wherein the working fluid is selected from the group consisting of deionized water, ammonia, acetone and methanol.

7. The electrical energy-generating system of claim 1 wherein the vapor pressurizing device is a compressor and the electricity generating device comprises a turbine generator.

8. The electrical energy-generating system of claim 7 wherein the turbine is mechanically coupled to the generator and fluidly coupled to the compressor.

9. The electrical energy-generating system of claim 8 comprising a plurality of turbines.

10. The electrical energy-generating system of claim 9 wherein the plurality of turbines are arranged in parallel on a turbine plate, further wherein the turbine plate is arranged in series with the compressor.

11. The electrical energy generating system of claim 1 wherein the electricity generating device comprises a turbine and an alternator, the alternator capable of providing energy to an external AC device.

12. The electrical energy-generating system of claim 11 wherein the turbine is mechanically coupled to the alternator and fluidly coupled to the compressor.

13. The electrical energy-generating system of claim 2 wherein the heat transfer device is a heat pipe or thermosyphon.

14. The electrical energy-generating system of claim 13 wherein the heat transfer device is a vapor chamber heat sink.

15. The electrical energy-generating system of claim 14 wherein the vapor chamber heat sink contains separate evaporator and condenser sections fluidly coupled together.

16. The electrical energy-generating system of claim 14 wherein the vapor chamber heat sink is a heat pipe containing a wick.

17. The electrical energy-generating system of claim 14 wherein the vapor chamber heat sink comprises a hollow vapor chamber base and a plurality of fins.

18. The electrical energy-generating system of claim 17 further comprising:

a chamber contained within the hollow vapor chamber base, the chamber adapted to house the electricity-generating device.

19. The electrical energy-generating system of claim 18 wherein the electricity generating device is comprised of a compressor and a plurality of turbine generators, further wherein the chamber is substantially triangular.

20. The electrical energy-generating system of claim 19 wherein the hollow vapor chamber base houses a plurality of substantially triangular chambers, each sequential chamber oriented in an opposing direction.

21. The electrical energy-generating system of claim 20 wherein electricity generated by the electricity generating device is routed to a rechargeable energy storage device.

22. The electrical energy-generating system of claim 21 wherein the rechargeable energy storage device is a battery.

23. The electrical energy-generating system of claim 1 wherein the vapor-pressurizing device and electricity generating device are micro-electrical mechanical systems (MEMS) devices.

53. The method of claim 7 wherein the compressor is selected from the group consisting of turbine compressor, screw compressor, centrifugal compressor and acoustic compressor.

24. An electrical energy-generating heat sink system comprising:

a vapor chamber heat sink containing a working fluid;

a compressor fluidly coupled to the vapor chamber heat sink; and

a MEMS turbine generator thermally coupled to the compressor and configured to provide electrical energy to a rechargeable battery in an electronic device.

25. The electrical energy-generating heat sink system of claim 24 wherein the electronic device is a notebook computer.

26. The electrical energy-generating heat sink system of claim 25 wherein run-time of the rechargeable battery in the notebook computer is increased by at least ten percent.

27. An integrated circuit package comprising:

a heat transfer device having an integrated circuit mating surface;

a compressor coupled to the heat transfer device; and

an electricity generating device coupled to the compressor.

28. The integrated circuit package of claim 27 further comprising a cooling device coupled to the electricity generating device and to the heat transfer device, the cooling device configured to cool excess vapor from the electricity generating device for use again in the heat transfer device.

29. The integrated circuit package of claim 28 wherein the cooling device is a thermoelectric cooler or a condenser.

30. The integrated circuit package of claim 29 wherein the condenser is integral with the heat generating device, further wherein the heat generating device is a vapor chamber heat sink.

31. The integrated circuit package of claim 30 further comprising a fan thermally coupled to the vapor chamber heat sink.

32. The integrated circuit package of claim 27 further comprising an integrated circuit die thermally coupled to the integrated circuit mating surface of the heat transfer device.

33. A notebook computer comprising:

a rechargeable battery; and

an electrical energy-producing heat sink system coupled to the rechargeable battery.

34. The notebook computer of claim 33 further wherein the electrical energy producing heat sink system includes a generator electrically coupled to the rechargeable battery.

35. The notebook computer of claim 34 wherein the run-time for the notebook computer is increased by at least ten percent.

36. A battery charger comprising:

means for transferring vapor from a microprocessor to a pressurizing device;

means for converting pressurized vapor from the pressurizing device to mechanical energy;

means for converting mechanical energy to electrical energy; and

means for supplying current to a rechargeable battery having terminals with the electrical energy.

37. The battery charger of claim 36 wherein the means for transferring vapor is a heat pipe or thermosyphon.

38. The battery charger of claim 37 wherein the means for converting pressurized vapor is a turbine.

39. The battery charger of claim 38 wherein the means for converting mechanical energy is a generator.

40. The battery charger of claim 39 wherein the means for supplying the current to the rechargeable battery comprises application of an electrical current to the terminals with the electrical energy.

41. A battery charger comprising:

a vapor-producing device adapted to intake heat from an integrated circuit package and expel vapor to a vapor pressurizing device, the vapor pressurizing device thermally coupled to the vapor producing device;

a mechanical energy-producing device mechanically coupled to the vapor pressurizing device and to an electrical energy-producing device; and

a current supplying device electrically connected to the electrical energy-producing device and to a battery.

42. The battery charger of claim 41 wherein the vapor producing device is a vapor chamber heat sink.

43. The battery charger of claim 41 further comprising a vapor reliquifying device.

44. The battery charger of claim 41 wherein the current supplying device is an electrical wire.

45. A method for providing electrical energy to a rechargeable energy storage device comprising:

vaporizing a working fluid in thermal contact with an integrated circuit package to produce vapor;

pressurizing the vaporized fluid to produce pressurized vapor;

forcing the pressurized vapor through turbine blades to produce mechanical energy; and

converting the mechanical energy to electrical energy.

46. The method of claim 45 further comprising routing the electrical energy to the rechargeable energy storage device.

47. The method of claim 46 further comprising reliquifying excess pressurized vapor.

48. The method of claim 45 wherein the energy storage device is located in an electronic device.

49. The method of claim 48 wherein the electronic device is a notebook computer.

50. A method for extending run-time for a battery-operated notebook computer comprising:

generating heat with a microprocessor;

transferring the heat through a heat sink to continuously produce electrical energy, the heat sink including a compressor and a turbine generator; and

providing the electrical energy to a battery in the notebook computer to recharge the battery, wherein run-time is extended for the notebook computer.

51. The method of claim 50 wherein run-time is extended by at least ten percent.

52. The method of claim 50 comprising continuously extending run-time while the battery-operated notebook is turned on.