Cooling device with heat pipe

• US 6,082,443 A
• Filed: 02/13/1998
• Issued: 07/04/2000
• Est. Priority Date: 02/13/1997
• Status: Expired due to Term

• Current Assignee: Furukawa Electric Company Limited
• Original Assignee: Furukawa Electric Company Limited
• Inventors: Ikeda, Masami, Yamamoto, Masaaki, Sasaki, Ken, Niekawa, Jun, Ueki, Tatuhiko
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): MCKINNON, TERRELL L
• Application Number:
  US09/023,372
• Time in Patent Office: 872 Days
• Field of Search: 165/104.21, 165/104.26, 165/104.33, 257/715, 257/720, 361/700, 361/720, 174/15.2
• US Class Current: 165/104.26
• CPC Class Codes: F28D 15/0233 the conduits having a particular shape, e.g. non-circular cross-section, annular F28D15/0241, F28D15/0266 take precedence
• CPC Class Codes: F28D 15/046 characterised by the material or the construction of the capillary structure
• CPC Class Codes: H01L 23/3672 Foil-like cooling fins or heat sinks being part of lead-frames H01L23/49568
• CPC Class Codes: H01L 23/3733 having a heterogeneous or anisotropic structure, e.g. powder or fibres in a matrix, wire mesh, porous structures H01L23/3732, H01L23/3737 take precedence
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• 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

The invention provides a cooling device with a heat pipe, which is capable of effectively radiating heat from electronic equipment such as a small-sized computer. The cooling device with the heat pipe comprises a plate-like container made of heat transferring metal for containing a working fluid, and having a heat absorbing surface larger than that of the body to be cooled, a heat transferring metal column, and a hollow portion in which the working fluid exists. An alternating embodiment of the cooling device with the heat pipe comprises a plate-like container made of heat transferring metal, a heat absorbing wall having a large heat absorbing surface, and a plurality of protrusion portions.

Claims

1. A cooling device with a heat pipe comprising:

a plate-like container made of heat transferring metal for containing a working fluid and having a heat absorbing wall and a heat radiating wall, wherein said heat absorbing wall has a large heat absorbing surface corresponding to a plurality of bodies to be cooled; and

said heat absorbing wall having a plurality of press-formed protrusion portions, each of said protrusion portions having a predetermined height, and being abutted to said bodies to be cooled.

2. A cooling device with a heat pipe according to claim 1, wherein a support is disposed inside of said container.

3. A cooling device with a heat pipe, according to claim 2, wherein said support is formed by subjecting one of said heat absorbing wall and said heat radiating wall of said container to embossing toward the opposed wall.

4. A cooling device with a heat pipe according to claim 1, wherein mesh is disposed along an inner surface of said heat absorbing wall of said container.

5. A cooling device with a heat pipe according to claim 1, wherein mesh is disposed along an inner surface of said heat absorbing wall and an inner surface of said heat radiating wall of said container.

6. A cooling device with a heat pipe according to claim 1, wherein mesh is disposed inside of at least one of said protrusion portions of said container so as to face said heat radiating wall.

7. A cooling device with a heat pipe according to claim 1, wherein a heat transferring metal column is disposed inside of at least one of said protrusion portions of said container so as to face said heat radiating wall.

8. A cooling device with a heat pipe according to claim 7, wherein said heat transferring metal column comprises a waveform fin.

9. A cooling device with a heat pipe according to claim 1, wherein a block is disposed inside of at least one of said protrusion portions of said container.

10. A cooling device with a heat pipe according to claim 9, wherein said block contacts said heat absorbing wall through a metal mesh.

11. A cooling device with a heat pipe according to claim 9, wherein protrusions are disposed on a surface of said block contacting said heat absorbing wall.

12. A cooling device with a heat pipe according to claim 7, wherein a porous metal body is disposed so as to contact said heat transferring column.

13. A cooling device with a heat pipe according to claim 1, wherein an outer frame is fixed to an outer periphery portion of said container, said outer frame serves as a portion attached to a base of said body to be cooled.

14. A cooling device with a heat pipe according to claim 13, wherein an attachment construction of said outer frame with said base of said body to be cooled is of a screwing construction.

15. A cooling device with a heat pipe according to claim 13, wherein a groove is disposed on said outer frame, and an edge portion of said container is fitted to said groove and fixed to said outer frame.

16. A cooling device with a heat pipe according to claim 12, wherein said outer frame is electric conductive.

17. A cooling device provided with a heat pipe, wherein

(a) said heat pipe comprises a plate-like container made of a heat transferring metal for containing working fluid, having a heat absorbing wall and a heat radiating wall;

(b) a heat transferring metal column is disposed between said heat absorbing wall and said heat radiating wall; and

(c) a contact area of said heat absorbing wall with said heat transferring metal column covers an area of a body to be cooled which is to be contacted with said heat absorbing wall.

18. A cooling device provided with a heat pipe, as claimed in claim 17, wherein said body to be cooled is contacted with said heat absorbing wall at position where said heat transferring metal column is disposed on said heat absorbing wall.

19. A cooling device provided with a heat pipe, as claimed in claim 17, wherein said heat absorbing wall is provided with a plurality of protrusion portions at the portion where said heat transferring metal column is disposed and a body to be cooled is contacted to a corresponding area of said heat absorbing wall where said protrusion portion is disposed.

20. A cooling device provided with a heat pipe, as claimed in claim 17, wherein an area of said heat absorbing wall which a body to be cooled is contacted with is covered by said heat absorbing wall where said heat transferring metal column is disposed.