CN1536657A

CN1536657A - Method for manufacturing thermal superconducting heat dissipation module

Info

Publication number: CN1536657A
Application number: CNA03109175XA
Authority: CN
Inventors: 刘俊富
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-04
Filing date: 2003-04-04
Publication date: 2004-10-13

Abstract

The invention discloses a method for manufacturing a heat superconducting radiating module, which combines a heat conduction superconducting pipe, a heat conduction superconducting body and molten metal together by a die-casting or casting technology, so that the heat conduction superconducting pipe and the heat conduction superconducting body are wrapped in the metal to form a radiating fin, the radiating fin can be provided with or not provided with fins, the surface of the radiating fin can be simultaneously combined with a base when in die-casting or casting molding, so that the base is contacted with a heat source, and the radiating efficiency of the radiating fin can be further improved.

Description

The manufacture method of hot superconduction heat radiation module

Invention field

The present invention provides a kind of manufacture method of hot superconduction heat radiation module, be the method for the fin of one particularly, be suitable for any flash heat transfer part that needs with the heat conductivility that promotes fin relevant for the heat-transfer superconductive pipe that will have high heat transfer character, body and melts combine with good heat conductive character.

Background technology

The present heat abstractor that adopted at computer cpu (CPU) or high thermal source product of industrial circle, be to utilize the pedestal of aluminium material fin (for example the radiator of No. 459469 patent case manufacturing is announced in Taiwan) to be contacted with thermal source mostly with high heat transfer efficient, with with heat absorption and be delivered on the fin of fin, utilize fan to blow out cold air again the heat on the fin is got rid of.

Because the non-general traditional aluminium material fin of high heat that high efficiency CPU produced now can conduct fast, get rid of, thereby to utilize heat transfer efficiency to exceed the heat that one times copper metal conducts CPU approximately than aluminum metal be the another kind selection; Yet, the about 2.7g/cm of the density of aluminum metal ³, and the density of copper metal is 8.93g/cm ³(the copper weight metal of equal volume is about three times of aluminum metal), therefore, if adopt the copper metallic to cause fin fully, then can can't be by landing experiment because of the preponderance of copper, or be contained on the motherboard after causing motherboard to be out of shape long afterwards.The at present so-called on the market aluminium material fin that has at the bottom of the copper, be with the technology of forging and pressing or welding with the copper coin build-in of forming in advance in the base bottom surface of aluminium material fin; The Taiwan patent announcement also belongs to the design of copper coin build-in in the aluminium material fin for No. 459469.

Though the copper coin embedding of little thickness is planted the effect that has lifting heat conductivility under lighter weight condition in the fin of aluminium material, if but can will have more the object of high-termal conductivity matter be combined in the fin of aluminium material and so on, or the material that directly will have high-termal conductivity matter makes the shell of machine or facility, then more can make heat dispersion obtain further to promote.

Summary of the invention

The manufacture method that the purpose of this invention is to provide a kind of hot superconduction heat radiation module, its be heat-transfer superconductive pipe, the body that will have high-termal conductivity matter and melts combine with good heat conductive character together, and be fin with this metal forming, with the method for the heat conductivility of further lifting fin.

Based on this, the manufacture method of hot superconduction heat radiation module provided by the present invention, be heat-transfer superconductive pipe, body and melt metal to be combined with die casting or foundry engieering, make heat-transfer superconductive pipe, body be covered by in the metal and form fin, this fin can have or not have fin simultaneously, the surface of this fin also can be when die casting or casting joint base simultaneously, contact with thermal source, allow the radiating efficiency of fin can obtain further lifting by this base.

Description of drawings

Fig. 1 is the fin of first kind of embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 2 is the fin of second kind of embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 3 is the fin of the third embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 4 is the fin of the 4th kind of embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 5 is the fin of the 5th kind of embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 6 is the fin of the 6th kind of embodiment behind demonstration utilizes institute of the present invention die casting or the casting.

Fig. 7 utilizes the embodiment stereogram that is combined with base and fin on the made fin of the present invention for showing.

Figure number wherein:

(1) hot superconduction fin

(11) metal

(12) fin

(2) heat-transfer superconductive pipe, body

(3) base

(4)CPU

Embodiment

The manufacture method of hot superconduction heat radiation module provided by the present invention may further comprise the steps:

B. the shape that the moulding of heat-transfer superconductive pipe, body being prebended is predetermined;

C. the heat-transfer superconductive pipe after the moulding, body and motlten metal with thermal conductive resin are inserted die casting or be cast as in the pattern;

D. this heat-transfer superconductive pipe, body and motlten metal are combined with die casting or casting mode by die casting or casting machine and form fin, and then make this heat-transfer superconductive pipe, body be covered by fin inside.

Heat-transfer superconductive pipe wherein, body are to adopt the metal body (for example copper, aluminium or other metal body) that can freely bend or be out of shape, and manage, the inner filling of body or comprise material with high speed heat-conductive characteristic, for example:

1, inorganic high-temp superconducting compound material, for example: y ba cu o compound (YBCO) superconductor, TBCCO (TBCCO) superconductor, HBCCO (HBCCO) superconductor, BSCCO (BSCCO) superconductor or other inorganic superconducting materials.

2, organic superconductor material, for example: pure water or other organic superconductor material.

3, other can reach the high speed thermally-conductive materials.

It is with the two ends processing sealing of pipe, body, spills body to prevent described Heat Conduction Material; By described metal tube, body and be included in its inner Heat Conduction Material and constitute heat-transfer superconductive pipe, body; The above its applied principle of inorganic high superconductor is the high speed concussion and friction that utilizes pipe, the interior molecule of body to produce when being heated, and allows heat energy pass with the mode Rapid Thermal that fluctuates; Organic high temperature superconducting materia, its applied principle, be the phase change that produces when utilizing the molecule of liquid in the metal tube, body to be heated and flash heat transfer, because of transmission speed very fast, so be called " heat-transfer superconductive pipe, body ", and very short by the transmission time that the hot junction transfers to cold junction because of heat-transfer superconductive pipe, body, so the temperature difference of hot junction and cold junction is very little, can reach best heat-conducting effect.Through experiment confirm, the speed of its heat transfer is about more than five times of copper, and the heat transfer rate of general aluminum metal is more than fast ten times.

By aforementioned method of the present invention, its can be as illustrated in fig. 1 with the heat-transfer superconductive pipe of straight shape, after body 2 is put into die casting or is cast as pattern with melt metal, carry out die casting or casting with die casting or casting forming machine again and metal 11 is shaped to thin shape, allow heat-transfer superconductive pipe, body 2 is covered by in the metal, constitute hot superconduction fin: the present invention also can be in die casting or casting, the base 3 that will have good heat conductive character places and is cast into pattern and carries out die casting or casting, or rheo-die-casting or cast out base, so that base 3 and fin are combined as a whole; Like this, when base 3 is contacted with the thermal source of CPU and so on, can very apace heat be transmitted to other position of metal via heat-transfer superconductive pipe, body 2 and promotes the heat transfer efficiency of fin.

Method of the present invention also heat-transfer superconductive pipe, body 2 can be prebended be shaped to L shaped after, again this heat-transfer superconductive pipe, body 2 are inserted die casting or are cast as with melt metal and carry out die casting or casting in the pattern, to form thin type fin 1 as shown in Figure 2.

Method of the present invention also can prebend heat-transfer superconductive pipe, body 2 behind the curl, again this heat-transfer superconductive pipe, body 2 and melt metal are inserted die casting or be cast as and carry out die casting or casting in the pattern, to form as the thin type fin 1 shown in Figure 3.

After method of the present invention also can prebend heat-transfer superconductive pipe, body 2 and be shaped to the  shape, again this heat-transfer superconductive pipe, body 2 are inserted die casting or are cast as with melt metal and carry out die casting or casting in the pattern, to form thin type fin 1 as shown in Figure 4.

Method of the present invention also can be inserted heat-transfer superconductive pipe, the body 2 of straight shape die casting or be cast as with melt metal and carry out die casting or cast form in the pattern, to form the thin type fin 1 that does not have base as shown in Figure 5.

Method of the present invention also can or be cast as the shape that pattern is designed to fin with die casting, again heat-transfer superconductive pipe, body 2 are inserted die casting or are cast as with melt metal and carry out die casting or casting in the pattern, being to have the fin of serial fin 12 1 shape directly, and make heat-transfer superconductive pipe, body 2 be combined in the base interior of fin 1 with metal forming; Therefore the pedestal of fin 1 can be contacted with CPU4 or other thermal source, to obtain high efficiency heat conduction and radiating effect.

Fig. 7 shows that method of the present invention is except being incorporated into heat-transfer superconductive pipe, body 2 in the lamelliform fin 1, and outside the metal surface of fin 1 one joint base 3, also to go out serial fin 12 in that the local location of this metal surface is one-body molded.

Moreover, utilize method of the present invention, also melt metal and heat-transfer superconductive pipe, body can be inserted the die casting of general machine enclosing cover or be cast as in the pattern to mold the shell of machine or facility, and make heat-transfer superconductive pipe, body be incorporated into the inside of machine casing, therefore can directly machine casing be locked in the machine that can produce heat, make its shell itself have good heat sinking function.

The applicant once did comparative experiments to the present invention and conventional aluminum alloy die cast finished product:

With aluminum metal 6063-T5, size 20cm (length) * 3.5cm (wide) * 0.5cm (thick) is 209W/mk through measuring the hot coefficient of its heat conduction heat conduction (Thermal Conductivity).

The present invention is with two heat-transfer superconductive pipe (its diameter 3.0mm, length 12cm, pipe thickness 0.3mm, the hot coefficient of heat conduction heat conduction is 15000W/mk) insert and inject described molten aluminium alloy (6063-T5) in the compression mod, operating temperature control at 652 ℃, mold the aluminium alloy heat-conducting block of 20cm (length) * 3.5cm (wide) * 0.5cm (thick) and be combined as a whole with the casting pressure of 90MPa with heat-transfer superconductive pipe, conductive coefficient through measuring this finished product (Thermal Conductivity) is 6250 W/mk, and its heat conduction conductive coefficient is more than 30 times of former aluminium alloy 6063-T5 die casting finished product.Obviously, utilize the present invention, can promote the coefficient of heat conduction significantly, promote heat conduction and heat-sinking capability the method that heat-transfer superconductive pipe and motlten metal die casting are combined into one.

Claims

1. A method for manufacturing a thermal superconducting heat dissipation module, comprising: placing a heat-conducting superconducting conduit, a body, and molten metal with good thermal conductivity into a die-casting or casting mold; and then using a die-casting or casting machine to The thermal conduction superconducting conduit and body are combined with molten metal in die-casting or casting molding, so that the thermal conduction superconducting conduit and body are covered in the metal block to form a heat dissipation module.

2. The manufacturing method of a thermal superconducting cooling module according to claim 1, wherein said cooling module is integrally formed with fins.

3. The method for manufacturing a thermal superconducting heat dissipation module according to claim 1, wherein the base is bonded to the surface of the heat dissipation module while die-casting or casting.

4. The manufacturing method of a thermal superconducting heat dissipation module according to claim 1, which can directly form the molten metal into the shell shape of a machine or tool.