Heat transfer device

• US 7,461,688 B2
• Filed: 07/27/2004
• Issued: 12/09/2008
• Est. Priority Date: 10/20/2003
• Status: Expired due to Fees

• Current Assignee: Advanced Thermal Device Inc.
• Original Assignee: Advanced Thermal Device Inc.
• Inventors: Wang, Chih-Hung, Huang, Bin-Juine, Huang, Huan-Hsiang, Lam, Chern-Shi, Yen, Yu-Yuan
• Primary Examiner(s): Duong; Tho V
• Application Number:
  US10/710,663
• Publication Number:
  US 20050082033A1
• Time in Patent Office: 1,596 Days
• Field of Search: 165/104.21, 165/104.26, 165/104.33, 165/80.4, 361/700, 298/900.32, 298/900.36, 298/900.37, 122/366
• US Class Current: 165/104.21
• 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 15/046 characterised by the material or the construction of the capillary structure
• CPC Class Codes: Y10T 29/4935 Heat exchanger or boiler making
• CPC Class Codes: Y10T 29/49353 Heat pipe device making
• CPC Class Codes: Y10T 29/49361 Tube inside tube
• CPC Class Codes: Y10T 29/49396 Condenser, evaporator or vaporizer making

Abstract

The heat transfer device at least comprises: an evaporator, a heat conductor and a connecting pipe. The evaporator comprises: a first hollow tube; a porous core mortised inside the first hollow tube; and a second hollow tube mortised on the first hollow tube. The heat conductor 220 covers the evaporator. The heat conductor is on the heating device. The connecting pipe is connected to first and second hollow tubes. The connecting pipe is used for containing a working fluid. The condenser is on the connecting pipe. The porous core, the first and second hollow tube, and the heat conductor are mortised together so as to simplify the manufacturing process, and reduce the cost. Further, the evaporator is tightly covered and fixed by the heat conductor so that the heat generated by the heating device can be uniformly conducted to the evaporator to enhance the heat conductivity.

Claims

1. A heat transfer device for transferring a heating source from a heating device, said heat transfer device comprising:

an evaporator, said evaporator comprising;

a first hollow tube having a first open end and a first closed end opposite to said first open end;

a porous core mortised inside said first hollow tube and having a first end and a second end opposite to said first end, wherein the porous core has a fluid channel surrounded by and located inside the porous core and extending along a direction from said first end to said second end, and said fluid channel is open at said first end and is close at said second end;

a second hollow tube having a second open end and a second closed end opposite to said second open end, wherein a part of said first hollow tube is mortised and secured inside said second hollow tube, the other part of said first hollow tube is exposed outside said second hollow tube, said first open end is mortised and secured inside said second open end, a direction from said first closed end to said first open end is opposite to another direction from said second closed end to said second open end, said porous core is located between said first closed end and said second closed end said second hollow tube has a fluid reservoir therein, and said fluid reservoir is located within said second hollow tube and beside said first end of said porous core and communicates with said fluid channel through an opening at said first end;

a connecting pipe connected to said evaporator, said connecting pipe being used for containing a working fluid; and

a condenser on said connecting pipe.

2. The device of claim 1, further comprising a heat conductor covering said evaporator, wherein said heat conductor is on said heating device.

3. The device of claim 2, wherein said heat conductor comprises:

a first heat conducting block having a heat conducting tenon; and

a second heat conducting block having a mortise corresponding to said tenon, said heat conducting tenon being inserted into said mortise so that said first and second heat conducting blocks cover said evaporator.

4. The device of claim 3, wherein the height of said tenon is smaller than the depth of said mortise.

5. The device of claim 1, further comprising a vapor channel between said first hollow tube and said porous core, said vapor channel being connected to said connecting pipe.

6. The device of claim 1, wherein said first hollow tube has a closed end, said closed end having a first surface, said first surface having a first hole, said connecting pipe having an end connected to said first hole to connect said first hollow tube.

7. The device of claim 1, said second closed end having a second surface, said second surface having a second hole, said connecting pipe having an end connected to said second hole to connect said second hollow tube.