Apparatus and method for extracting heat from a device

• US 8,584,738 B2
• Filed: 06/14/2002
• Issued: 11/19/2013
• Est. Priority Date: 06/14/2002
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Hurlbert, Kathryn M., Ruemmele, Warren, Nguyen, Hai D., Andish, Kambiz K., McCalley, Sean M.
• Primary Examiner(s): Duong, Tho V
• Application Number:
  US10/172,662
• Publication Number:
  US 20030230399A1
• Time in Patent Office: 4,176 Days
• Field of Search: 165/80.4, 165168-171, 165/49, 165/56, 165/104.33, 165/185, 361/699, 361/711, 361/724, 361/702, 298/900.38, 420/417, 420/419, 228/140, 228/183, 228/251, 228/262.72
• US Class Current: 165/80.4
• CPC Class Codes: F28D 1/0246 heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks
• CPC Class Codes: F28D 2021/0078 in the form of cooling walls
• CPC Class Codes: H01L 23/473 by flowing liquids H01L23/4332, H01L23/4338 take precedence
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A cold plate includes a face sheet comprising a composite material and having a lower surface and at least one cooling tube attached to the lower surface and being capable of transmitting a cooling fluid therethrough. A heat extraction system includes a cold plate comprising a face sheet comprising a composite material and having a lower surface and at least one cooling tube attached to the lower surface and being capable of transmitting a cooling fluid therethrough. The heat extraction system further includes a pump in fluid communication with the cold plate and a heat exchanger in fluid communication with the pump and the cold plate. A method for fabricating a cold plate includes providing a face sheet comprising a composite material and attaching at least one cooling tube to a lower surface of the face sheet.

Claims

1. An apparatus, comprising:

a cold plate, comprising;

a face sheet including a composite material and comprising;

a plurality of joined panels; and

at least one cooling tube capable of transmitting a cooling fluid therethrough attached to a lower surface of the face sheet.

2. The apparatus, according to claim 1, wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least on adhesively bonded lap joint.

3. The apparatus, according to claim 2, wherein the at least one soldered lap joint includes a, soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

4. The apparatus, according to claim 1, wherein the composite material comprises:

at least one of a carbon-carbon composite material and a metal encapsulated carbon material.

5. The apparatus, according to claim 1, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

6. The apparatus according to claim 1, wherein the at least one flow tube comprises one of a 0-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

7. The apparatus, according to claim 1, wherein the at least one flow tube is attached to the lower surface of the face sheet by a material selected from the group consisting of an adhesive bonding material, a soldering material, and a brazing material.

8. The apparatus, according to claim 7, wherein the soldering material comprises a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

9. The apparatus, according to claim 1, further comprising:

a protective layer applied to an upper surface of the face sheet.

10. The apparatus, according to claim 1, further comprising:

a structural member attached to the face sheet.

11. The apparatus, according to claim 10, wherein the structural member comprises:

an upper skin attached to the lower surface of the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

12. The apparatus, according to claim 1, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

13. The apparatus, according to claim 1, further comprising:

a framework for holding the cold plate as a shelf.

14. An apparatus, comprising:

a cold plate, comprising;

a face sheet comprising a plurality of joined panels and including at least one of a carbon-carbon composite material and a metal-encapsulated carbon material; and

at least one cooling tube capable of transmitting a cooling fluid therethrough attached to a lower surface of the face sheet.

15. The apparatus, according to claim 14, wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least one adhesively bonded lap joint.

16. The apparatus, according to claim 15, wherein the at least one soldered lap joint includes a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

17. The apparatus, according to claim 14, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

18. The apparatus, according to claim 14, wherein the at least one flow tube comprises one of a 0-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

19. The apparatus according to claim 14, wherein the at least one flow tube is attached to the lower surface of the face sheet by a material selected from the group consisting of an adhesive bonding material, a soldering material, and a brazing material.

20. The apparatus, according to claim 19, wherein the soldering material comprises a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight and about 4.5 percent titanium by weight.

21. The apparatus according to claim 14, further comprising:

a protective layer applied to an upper surface of the face sheet.

22. The apparatus, according to claim 14, further comprising:

a structural member attached to the face sheet.

23. The apparatus according to claim 22, wherein the structural member comprises:

an upper skin attached to the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

24. The apparatus according to claim 14, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

25. The apparatus, according to claim 14, further comprising:

a framework for holding the cold plate as a shelf.

26. An apparatus, comprising:

a cold plate, comprising;

a face sheet comprising a plurality of joined panels made from a composite material; and

at least one cooling tube capable of transmitting a cooling fluid therethrough attached to a lower surface of the face sheet by a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight, the cooling tube being capable of transmitting a cooling fluid therethrough.

27. The apparatus, according to claim 26, wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least one adhesively bonded lap joint.

28. The apparatus, according to claim 27, wherein the at least one soldered lap joint includes a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

29. The apparatus, according to claim 26, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

30. The apparatus, according to claim 26, wherein the at least one flow tube comprises one of a D-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

31. The apparatus, according to claim 26, further comprising:

a protective layer applied to an upper surface of the face sheet.

32. The apparatus, according to claim 26, further comprising:

a structural member attached to the face sheet.

33. The apparatus, according to claim 32, wherein the structural member comprises:

an upper skin attached to the lower surface of the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

34. The apparatus, according to claim 26, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

35. The apparatus, according to claim 26, further comprising:

a framework for holding the cold plate as a shelf.

36. An apparatus, comprising:

a cold plate, comprising;

a face sheet including a composite material; and

at least one cooling tube capable of transmitting a cooling fluid therethrough attached to a lower surface of the face sheet, the at least one cooling tube defining a bore therethrough for transmitting the cooling fluid, the bore having a cross-sectional width-to-height ratio of about 3 to about 1.

37. The apparatus, according to claim 36, wherein the face sheet comprises:

a plurality of joined panels.

38. The apparatus, according to claim 37, wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least one adhesively bonded lap joint.

39. The apparatus, according to claim 38, wherein the at least one soldered lap joint includes a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

40. The apparatus according to claim 36, wherein the composite material comprises:

at least one of a carbon-carbon composite material and a metal-encapsulated carbon material.

41. The apparatus, according to claim 36, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

42. The apparatus, according to claim 36, wherein the at least one flow tube comprises one of a 0-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

43. The apparatus according to claim 36, wherein the at least one flow tube is attached to the lower surface of the face sheet by a material selected from the group consisting of an adhesive bonding material, a soldering material, and a brazing material.

44. The apparatus, according to claim 43, wherein the soldering material comprises a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

45. The apparatus, according to claim 36, further comprising:

a protective layer applied to an upper surface of the face sheet.

46. The apparatus, according to claim 36, further comprising:

a structural member attached to the face sheet.

47. The apparatus, according to claim 46, wherein the structural member comprises:

an upper skin attached to the lower surface of the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

48. The apparatus, according to claim 36, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

49. The apparatus, according to claim 36, further comprising:

a framework for holding the cold plate as a shelf.

50. An apparatus comprising:

a cold plate, comprising;

a face sheet comprising a plurality of joined panels; and

at least one cooling tube capable of transmitting a cooling fluid therethrough attached to a lower surface of the face sheet by a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight, the cooling tube being capable of transmitting a cooling fluid therethrough; and

a structural member attached to the face sheet.

51. The apparatus according to claim 50 wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least one adhesively bonded lap joint.

52. The apparatus, according to claim 51, wherein the at least one soldered lap joint includes a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

53. The apparatus, according to claim 50, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

54. The apparatus, according to claim 50, wherein the at least one flow tube comprises one of a D-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

55. The apparatus, according to claim 50, further comprising:

a protective layer applied to an upper surface of the face sheet.

56. The apparatus, according to claim 50, wherein the structural member comprises:

an upper skin attached to the lower surface of the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

57. The apparatus, according to claim 50, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

58. The apparatus, according to claim 50, further comprising:

a framework for holding the cold plate as a shelf.

59. An apparatus, comprising:

a cold plate, comprising;

a face sheet; and

at least one cooling tube attached to a lower surface of the face sheet, the at least one cooling tube defining a bore therethrough for transmitting a cooling fluid, the bore having a cross-sectional width-to-height aspect ratio of about 3 to about 1; and

a structural member attached to the face sheet.

60. The apparatus, according to claim 59, wherein the face sheet comprises:

a plurality of joined panels.

61. The apparatus, according to claim 60, wherein the plurality of panels are joined by at least one soldered lap joint, at least one brazed lap joint, or at least one adhesively bonded lap joint.

62. The apparatus, according to claim 61, wherein the at least one soldered lap joint includes a soldering material having a composition not exceeding about 93 percent tin by weight, about 6 percent silver by weight, and about 4.5 percent titanium by weight.

63. The apparatus, according to claim 59, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

64. The apparatus, according to claim 59, wherein the at least one flow tube comprises one of a 0-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

65. The apparatus, according to claim 59, further comprising:

a protective layer applied to an upper surface of the face sheet.

66. The apparatus, according to claim 59, wherein the structural member comprises:

an upper skin attached to the lower surface of the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

67. The apparatus, according to claim 59, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

68. The apparatus, according to claim 59, further comprising:

a framework for holding the cold plate as a shelf.

69. An apparatus, comprising:

a cold plate, comprising;

a face sheet; and

at least one cooling tube attached to a lower surface of the face sheet, the at least one cooling tube capable of transmitting a cooling fluid therethrough;

a structural member attached to the face sheet; and

a fastener defining a threaded bore, the fastener extending through the face sheet for attaching an article to the facesheet.

70. The apparatus, according to claim 69, wherein the face sheet comprises:

a plurality of joined panels.

71. The apparatus, according to claim 69, further comprising:

an input manifold to which the cooling tube is joined at a first end thereof; and

an output manifold to which the cooling tube is joined at a second end thereof.

72. The apparatus, according to claim 69, wherein the at least one flow tube comprises one of a D-shape, an oval, a rectangle, and a rounded rectangle in cross-section.

73. The apparatus, according to claim 69, further comprising:

a protective layer applied to an upper surface of the face sheet.

74. The apparatus, according to claim 69, wherein the structural member comprises:

an upper skin attached to the face sheet;

a lower skin; and

a core attached between the upper skin and the lower skin.

75. The apparatus, according to claim 69, further comprising:

a pump in fluid communication with the cold plate; and

a heat exchanger in fluid communication with the pump and the cold plate.

76. The apparatus, according to claim 69, further comprising:

a framework for holding the cold plate as a shelf.

77. A method, comprising the steps of:

soldering, brazing, or adhesively bonding a plurality of panels to form a face sheet comprising a composite material; and

attaching at least one cooling tube to a lower surface of the face sheet;

wherein the step of soldering, brazing, or adhesively bonding the plurality of panels is accomplished by the step of soldering the plurality of panels at a temperature of about 232°

C. to about 260°

C. using a solder having a composition not exceeding about 93% tin by weight, about 6% silver by weight, and about 4.5% titanium by weight.