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

• US 6,877,318 B2
• Filed: 06/09/2003
• Issued: 04/12/2005
• Est. Priority Date: 11/16/2001
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Tadayon, Pooya, Monzon, Franklin G., Dujari, Prateek
• Primary Examiner(s): NGUYEN, HOANG M
• Application Number:
  US10/458,570
• Publication Number:
  US 20030192314A1
• Time in Patent Office: 673 Days
• Field of Search: 606/45, 606/51, 606/70, 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 containing a working fluid, the 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 thennally coupled to a compressor and fluidly coupled to the heat transfer device.

2. The electrical energy-generating system of claim 1 wherein the working fluid is a dielectric.

3. The electrical energy-generating system of claim 2 wherein the dielectric is a hydrofluoroether or chlorofluorocarbon.

4. The electrical energy-generating system of claim 2 wherein the working fluid is selected from the group consisting of deionized water, ammoma, acetone and methanol.

5. The electrical energy-generating system of claim 1 wherein the electricity generating device comprises a turbine generator.

6. The electrical energy-generating system of claim 5 wherein the turbine is mechanically coupled to the generator and fluidly coupled to the compressor.

7. The electrical energy-generating system of claim 6 comprising a plurality of turbines.

8. The electrical energy-generating system of claim 7 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.

9. The electrical energy-generating system of claim 2 wherein the electricity generating device comprises a turbine and an alternator, the alternator capable of providing energy to an external AC device.

10. The electrical energy-generating system of claim 9 wherein the turbine is mechanically coupled to the alternator and fluidly coupled to the compressor.

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

12. The electrical energy-generating system of claim 11 wherein the heat transfer device is a vapor chamber heat sink having no wick and a substantially triangular chamber base and a plurality of fins or rods.

13. The electrical energy-generating system of claim 2 wherein electricity generated by the electricity generating device is routed to a rechargeable energy storage device.

14. The electrical energy-generating system of claim 13 wherein the rechargeable energy storage device is a notebook battery.

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

16. An electrical energy-generating system comprising:

a vapor chamber heat sink having a wick structure and containing a working fluid, the 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 a compressor and fluidly coupled to the heat transfer device.

17. The electrical energy-generating system of claim 16 wherein the working fluid is a dielectric.

18. The electrical energy-generating system of claim 17 wherein the dielectric is a hydrofluoroether or chiorofluorocarbon.

19. A device comprising:

a refrigeration system coupled to a micro-electrical mechanical systems (MEMS) electricity generating device wherein working fluid in the refrigeration system is vaporized in a heat transfer device and channeled through a MEMS compressor to produce pressurized vapor, further wherein the pressurized vapor passes through the MEMS electricity generating device to provide electrical energy to a rechargeable energy storage device.

20. The MEMS device of claim 19 wherein excess vapor is reliquified in the heat transfer device for use again in the system.

21. The MEMS device of claim 20 wherein the MEMS electricity generating device is a turbine generator.

22. The MEMS device of claim 19 wherein the rechargeable energy storage device is a notebook battery.

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

a vapor chamber heat sink containing a working fluid;

a MEMS 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 a notebook computer.

24. The electrical energy-generating heat sink system of claim 23 wherein the compressor is driven with a piezoelectric device.

25. The electrical energy-generating heat sink system of claim 23 wherein run-time of the rechargeable battery in the notebook computer is increased by at least ten percent.

26. An integrated circuit package comprising:

a heat transfer device having an integrated circuit mating surface;

a MEMS compressor coupled to the heat transfer device; and

a MEMS electricity generating device coupled to the compressor.

27. The integrated circuit package of claim 26 further comprising a cooling device coupled to the MEMS electricity generating device and to the heat transfer device, the cooling device configured to cool excess vapor from the MEMS electricity generating device for use again in the heat transfer device.

28. The integrated circuit package of claim 27 wherein the cooling device is a thermoelectric cooler or a condenser.

29. The integrated circuit package of claim 28 wherein the condenser is integral with the heat transfer device, further wherein the heat transfer device is a vapor chamber heat sink.

30. The integrated circuit package of claim 29 further comprising a fan thermally coupled to the vapor chamber heat sink.

31. The integrated circuit package of claim 26 further comprising an integrated circuit die thermally coupled to the integrated circuit mating surface of the heat transfer device.

32. 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;

converting the mechanical energy to electrical energy; and

routing the electrical energy to the rechargeable energy storage device.

33. The method of claim 32 further comprising reliquifying excess pressurized vapor.

34. The method of claim 32 wherein the energy storage device is located in an electronic device.

35. The method of claim 34 wherein the electronic device is a notebook computer.