Loop heat pipe

• US 7,650,932 B2
• Filed: 01/30/2006
• Issued: 01/26/2010
• Est. Priority Date: 01/30/2006
• Status: Expired due to Fees

• Current Assignee: Jaffe Limited
• Original Assignee: Jaffe Limited
• Inventors: Li, Jia-Hao
• Primary Examiner(s): Flanigan; Allen J
• Application Number:
  US11/341,413
• Publication Number:
  US 20070175616A1
• Time in Patent Office: 1,457 Days
• Field of Search: 165/104.21, 165/104.26, 165/104.33, 361/700
• 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: 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 loop heat pipe includes an evaporator and a sealed pipe. The evaporator includes an evaporator body made of a heat conductive material. The evaporator body has at least two retaining holes and at least a channel hole penetrating the retaining holes. In addition, the sealed pipe includes at least two sealed ends. The two sealed ends are securely fastened to the two retaining holes of the evaporator. Meanwhile, at least one of the two retaining holes is a through hole, which penetrates through two sides of the evaporator body, and at least one of the sealed ends protrudes the evaporator via the penetrable retaining hole.

Claims

1. A loop heat pipe, comprising:

an evaporator having an evaporator body made of a heat conductive material, the evaporator body comprising at least two retaining holes and at least a channel hole penetrating the retaining holes; and

a sealed pipe comprising at least two sealed ends, the two sealed ends being securely fastened to the two retaining holes of the evaporator;

wherein

at least one of the two retaining holes is a through hole, which penetrates through two sides of the evaporator body, and at least one of the sealed ends protrudes the evaporator via the penetrable retaining hole,

wherein the sealed pipe comprises two or more pipe bodies sequentially connected with each other, and

wherein the pipe bodies are connected via a connection piece, the connection piece including two connection holes for penetrating therethrough the pipe bodies and a channel hole that penetrates the connection holes.

2. The loop heat pipe as recited in claim 1, wherein the evaporator body is made of aluminum or copper.

3. The loop heat pipe as recited in claim 1, wherein the evaporator body comprises a contact surface for contacting a heat source.

4. The loop heat pipe as recited in claim 1, wherein a sealed portion is formed on the top portion of the evaporator body at the channel hole of the evaporator.

5. The loop heat pipe as recited in claim 4, wherein the sealed portion is a plug, or a soldered structure formed by a soldering procedure.

6. The loop heat pipe as recited in claim 1, wherein the sealed pipe is a bent pipe body.

7. The loop heat pipe as recited in claim 6, wherein the sealed pipe is bent to a U-shape.

8. The loop heat pipe as recited in claim 1, wherein a sealed structure is formed at the sealed end that protrudes the evaporator.