L-type heat sink

• US 5,490,558 A
• Filed: 06/04/1993
• Issued: 02/13/1996
• Est. Priority Date: 04/13/1992
• Status: Expired due to Term

• Current Assignee: TS Heatronics Co., Ltd.
• Original Assignee: Actronics Kabushiki Kaisha
• Inventors: Akachi, Hisateru
• Primary Examiner(s): Flanigan, Allen J.
• Application Number:
  US08/071,256
• Time in Patent Office: 984 Days
• Field of Search: 165/80.3, 165/104.33, 165/185, 174/16.3, 361/703, 361/704
• US Class Current: 165/104.33
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: F28D 15/0275 Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
• CPC Class Codes: F28F 3/022 the means being wires or pins
• CPC Class Codes: H01L 23/3677 Wire-like or pin-like cooling fins or heat sinks
• 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

A heat sink comprising a belt-shaped member arranged on a heat radiating side of a heat receiving plate and having one side having a plurality of script'"'"'s l-shaped pinlike portions. The belt-shaped member includes a capillary heat pipe.

Claims

1. A heat sink, comprising:

a heat receiving plate having a heat radiating side; and

a belt-shaped member joined to said heat radiating side of said heat receiving plate, said belt-shaped member having a plurality of script'"'"'s l-shaped pinlike portions arranged at predetermined levels, said belt-shaped member including a heat pipe with a small bore.

2. A heat sink as claimed in claim 1, wherein said heat pipe is made of aluminum.

3. A heat sink as claimed in claim 2, wherein said heat pipe made of aluminum has a nickel plating.

4. A heat sink as claimed in claim 1, wherein said heat pipe is made of pure copper.

5. A heat sink as claimed in claim 1, wherein said belt-shaped member is bent and folded to form a prism.

6. A heat sink as claimed in claim 1, wherein said belt-shaped member is laminated in a plurality of layers to form a prism.

7. A heat sink as claimed in claim 1, wherein said heat receiving plate is made of aluminum.

8. A heat sink as claimed in claim 7, wherein said heat receiving plate made of aluminum has a nickel plating.

9. A heat sink as claimed in claim 1, wherein said heat receiving plate is in the form of a quadrangle, said quadrangle of said heat receiving plate being formed with a screw hole in the vicinity of an intersection point of diagonal lines thereof, said screw hole being a center of a spiral of said belt-shaped member.

10. A heat sink as claimed in claim 1, wherein said belt-shaped member is wound in a spiral to form a column.

11. A heat sink as claimed in claim 1, wherein said belt-shaped member is wound in a spiral to form a prism.

12. A heat sink as claimed in claim 1, wherein said belt-shaped member is wound in a spiral to form a triangular pole.

13. A heat sink, comprising:

a heat receiving plate having a heat radiating side;

and

a belt-shaping member joined to said heat radiating side of said heat radiating plate, said belt-shaped member having a plurality of script'"'"'s l-shaped pinlike portions arranged at predetermined levels, said belt-shaped member being wound in a spiral to form a column.