Loop heat exchange apparatus

• US 20070175614A1
• Filed: 01/30/2006
• Published: 08/02/2007
• Est. Priority Date: 01/30/2006
• Status: Abandoned Application

• Current Assignee: Jaffe Limited
• Original Assignee: Jaffe Limited
• Inventors: Li, Jia-Hao
• Application Number:
  US11/341,465
• Publication Number:
  US 20070175614A1
• Time in Patent Office: Days
• US Class Current: 165/104.260
• 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 15/043 forming loops, e.g. capillary pumped loops
• 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 exchange apparatus for dissipating heat generated from a plurality of heat sources includes at least a first heat pipe having a heat reception portion, a plurality of second heat pipes each having a condensation portion, a plurality of evaporators disposed on the first heat pipe for contacting the heat source, and a connection mechanism. One end of the second heat pipes is inserted in the evaporator, while the other end of the second heat pipes is inserted to the connection mechanism of the first heat pipe. The evaporator and the connection mechanism are drilled, cleaned, filled with working fluid, evacuated and sealed. In this manner, the first heat pipe and the second heat pipes can form a tightly sealed loop heat exchange apparatus, which can perform heat exchange simultaneously with a plurality of heat sources.

Claims

1. A loop heat exchange apparatus for dissipating heat generated from a plurality of heat sources, the apparatus comprising:

at least a first heat pipe having a plurality of heat reception portions;

a plurality of evaporators, each being disposed to a heat reception portion of the first heat pipe, and being correspondingly adhered to each heat source;

a connection mechanism disposed to one end of the first heat pipe; and

a plurality of second heat pipes, each having a condensation portion, wherein one end of each second heat pipe is inserted to one evaporator, and the other end of each second heat pipe is inserted in the connection mechanism.

2. The apparatus as recited in claim 1, wherein a liquid seal region is formed on the first heat pipe adjacent the heat reception portion.

3. The apparatus as recited in claim 2, wherein the liquid seal region is formed by flattening a portion of the first heat pipe.

4. The apparatus as recited in claim 2, wherein the liquid seal region is formed by filling in the first heat pipe a capillary structure.

5. The apparatus as recited in claim 1, wherein the evaporator is made of a heat conductive material such as copper or aluminum.

6. The apparatus as recited in claim 1, wherein the evaporator includes a connection body, one side of the connection body having a first through hole and a second through hole formed thereon for inserting therein the first heat pipe and the second heat pipe, wherein a communicable hole is drilled from one side of the first heat pipe and the second heat pipe perpendicular to the connection body to the other side of the first heat pipe and the second heat pipe, thereby communicably connection the heat pipes.

7. The apparatus as recited in claim 6, wherein the first through hole is a penetrating hole providing a sealed pipe opening of the first heat pipe to protrude therethrough, while the second through hole is a blind hole.

8. The apparatus as recited in claim 1, wherein the connection mechanism includes a connection body, a first through hole and a plurality of second holes being formed on one side of the connection body for the first heat pipe and the second heat pipe to insert therein, a communicable hole being drilled from one side of the first heat pipe and the second heat pipes perpendicular to the connection body to the other side of the first heat pipe and the second heat pipes, thereby communicably connecting the heat pipes.

9. The apparatus as recited in claim 8, wherein the evaporators correspond to the first heat pipe, while a plurality of the first through holes is correspondingly formed on the connection body, a communicable hole being drilled between the first and the second heat pipes, thereby communicably connecting the heat pipes.