Cooling device with heat pipe

• US 6,269,866 B1
• Filed: 04/06/2000
• Issued: 08/07/2001
• Est. Priority Date: 02/13/1997
• Status: Expired due to Fees

• Current Assignee: Furukawa Electric Company Limited
• Original Assignee: Furukawa Electric Company Limited
• Inventors: Ueki, Tatuhiko, Ikeda, Masami, Yamamoto, Masaaki, Sasaki, Ken, Niekawa, Jun
• Primary Examiner(s): Lazarus, Ira S.
• Assistant Examiner(s): MCKINNON, TERRELL L
• Application Number:
  US09/544,313
• Time in Patent Office: 488 Days
• Field of Search: 165/104.26, 165/104.33, 165/80.4, 165/185, 361/677, 361/659, 361/699, 361/700, 257/706, 257/714-717, 174/15.2, 174/16.3
• 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 provided 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 the 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) a plate-like container made of a heat transferring metal for containing 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;

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; and

a heat transferring metal column being disposed inside of at least one of said protrusion portions of said container, said heat transferring metal column being joined to said inside of said protrusion portions.

2. A cooling device with a heat pipe comprising:

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

said heat absorbing wall having a plurality of press-formed protrusion portions with a heat transferring metal column being formed as a unit with inside of said protrusion portion, each of said protrusion portions having a predetermined height, and being abutted to said bodies to be cooled.

3. A cooling device with a heat pipe comprising:

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

said heat absorbing wall having a plurality of press-formed protrusion portions with a heat transferring metal column being formed as a unit with inside of said protrusion portion, each of said protrusion portions having a predetermined height, and being abutted to said bodies to be cooled; and

said heat radiating wall having a plurality of heat transferring metal columns formed as a unit with inside of said heat radiating wall, said heat transferring metal column formed as a unit with said heat absorbing wall being abutted to said heat transferring metal column formed as a unit with said heat radiating wall.

4. A cooling device as claimed in claim 3, wherein said heat transferring metal column formed as a unit with said heat absorbing wall has an identical cross sectional area to said heat transferring metal column formed as a unit with said heat radiating wall.

5. A cooling device with a heat pipe, comprising:

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

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; and

said heat radiating wall having a plurality of heat transferring metal columns formed as a unit with inside of said heat radiating wall, said heat transferring metal column formed as a unit with inside of said heat radiating wall, said heat transferring metal column formed as a unit with said heat radiating wall is contacted with inside of said protruding portions of said heat absorbing wall, each of said protrusion portions having a predetermined height, and being abutted to said bodies to be cooled.