Symmetrical heat sink module with a heat pipe for spreading of heat

• US 6,945,319 B1
• Filed: 09/10/2004
• Issued: 09/20/2005
• Est. Priority Date: 09/10/2004
• Status: Expired due to Fees

• Current Assignee: Datech Technology Co. Ltd. (Asia Vital Components Company Limited)
• Original Assignee: Datech Technology Co. Ltd. (Asia Vital Components Company Limited)
• Inventors: Li, Nien-Lun, Chu, Hung-Chung, Hsu, To, Lee, Cheng-Hsing
• Primary Examiner(s): Duong, Tho v
• Application Number:
  US10/937,281
• Time in Patent Office: 375 Days
• Field of Search: 165/185, 165/80.3, 165/104.33, 165/104.34, 165/104.21, 165/104.26, 361/697, 361/700, 361/702, 361/704, 257/714, 257/715, 174/15.2, 174/16.3
• US Class Current: 165/104.33
• 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 1/32 the means having portions engaging further tubular elements
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes 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 23/467 by flowing gases, e.g. air H01L23/473 takes 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

The present invention is a symmetrical heat sink module with a heat pipe for spreading of heat, comprising a first and a second sets of fins each with a first and a second heat dissipation areas where the first and the second heat dissipation areas each comprises corresponding concave parts; a curved heat pipe between the concave parts with the bottom being convex out of the bottom of the first and the second sets of fins; and a base at the convex bottom of the curved heat pipe. Accordingly, the first and the second sets of fins are corresponding to each other so that the heat sink module obtains larger heat dissipation area and the function of two-side dissipation to achieve better heat dissipation efficiency.

Claims

1. A symmetrical heat sink module with a heat pipe for spreading of heat, comprising a first set of fins, a second set of fins, a curved heat pipe and a base, said first set of fins comprising:

(1) a first heat dissipation area at an end of said first set of fins;

(2) a second heat dissipation area on a surface of said first set of fins near said first heat dissipation area; and

(3) two vicinal concave parts shaped on the opposite surface to said surface of said first set of fins, said second set of fins comprising;

(1) a first heat dissipation area at an end of said second set of fins;

(2) a second heat dissipation area on a surface of said second set of fins near said first heat dissipation area; and

(3) two vicinal concave parts shaped on the opposite surface to said surface of said second set of fins, which are corresponding to said two vicinal concave parts of said first set of fins;

said curved heat pipe comprising a curved part convex out of said end of said first set of fins and said end of said second set of fins;

said base comprising a connection part corresponding to said curved part of said curved heat pipe;

wherein said curved heat pipe is deposited between said concave parts of said first set of fins and said concave parts of said second set of fins; and

wherein said base is deposited at said convex bottom of said curved heat pipe.

2. The symmetrical heat sink module according to claim 1, wherein said second set of fins is corresponding to said first set of fins.

3. The symmetrical heat sink module according to claim 1, wherein said first heat dissipation areas of said first and said second sets of fins are vertically extended from said end of said first and said second sets of fins.

4. The symmetrical heat sink module according to claim 1, wherein said second heat dissipation area of said first and said second sets of fins are extended out from a surface of said first and said second sets of fins.

5. The symmetrical heat sink module according to claim 1, wherein said first and said second sets of fins are made of materials with heat dissipation ability, selected from a group consisting of alumni, copper, alumni alloy and copper alloy.

6. The symmetrical heat sink module according to claim 1, wherein said first and said second heat dissipation areas comprises a plurality of fins.

7. The symmetrical heat sink module according to claim 1, wherein an end of said first sets of fins and an end of said second sets of fins each comprise a corresponding combination part.

8. The symmetrical heat sink module according to claim 1, wherein said first and said second sets of fins each comprises an indentation at an edge of an end surface of each set of fins to contain said convex curved part of said curved heat pipe.

9. The symmetrical heat sink module according to claim 1, wherein said curved heat pipe is a U-type heat pipe.

10. The symmetrical heat sink module according to claim 1, wherein said curved heat pipe is a pipe capable of capillarity with liquid inside.

11. The symmetrical heat sink module according to claim 1, wherein said curved heat pipe is a loop heat pipe.

12. Symmetrical heat sink module according to claim 1, wherein said base are made of materials with heat dissipation ability selected from a group consisting of alumni, copper, alumni alloy and copper alloy.