TW466329B - Method for manufacturing cylinder-shaped heat conduction tube - Google Patents

Abstract

The present invention relates to a method for manufacturing a cylinder-shaped tube. A copper sheet is first pressed to form a barrel-shaped housing. Then a copper stud is plugged in the barrel-shaped housing and copper powder is added to the barrel-shaped housing. The copper powder is then sintered in the barrel-shaped housing. After sintering, the copper stud is drawn out. Next, a cover having an air outlet is sealed at the opening of the barrel-shaped housing. Working fluid is then poured into the barrel-shaped housing. Finally, the barrel-shaped housing is pumped up to vacuum through the air outlet, and the air outlet is then sealed to form a cylinder-shaped heat conduction tube having a smooth bottom face.

Description

4 6 6329 A7 B7 V. Description of the invention (/) The present invention is a method for manufacturing a cylindrical heat transfer tube. The cylindrical heat transfer tube is a heat transfer tube suitable for high-speed CPU heat dissipation. The cylindrical heat pipe can have a flat bottom surface and can be directly placed on the top surface of the CPU to achieve excellent heat dissipation. '' In recent years, semiconductor technology has continued to evolve, and related manufacturers have also developed large integrated circuits as the goal. Not only the trend of All in 〇ne is unstoppable, but soc (System on a chip) and SOAC (System on a Novel designs such as applicaUon Chlp) can greatly reduce the volume of the final product, and at the same time can greatly reduce the overall production cost of the product. Of course, the more direct impact is the substantial increase in processing speed, which is indeed the current semiconductor Big factories strive to study the goals. However, after the large-scale integrated circuit and the processing speed continued to increase, it came out, "The problem of too high temperature of the circuit." In research, I learned that the integrated circuit made of existing materials when the temperature exceeds 70 degrees Celsius The processing speed will have a negative impact, so how can the dog maintain the temperature of the integrated circuit operation is indeed an urgent problem. f now = some personal electronic financial central processors have been installed with cooling fins m and fans' and can keep the fans running after the computer is turned on Practicality, so the party to the various waste merchants. That is, the actual use state of the ::: body circuit is not that it is not operated after the power is turned on: the rate of performance is maintained, but it is set to run when performing calculations or specific operation modes. The operation time is usually not long. ―Generally, the paper size is suitable for mm) ------------- 裒 —— (Please read the precautions on the back before filling this page).

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V. Description of the invention (2: 2: of: = the time of running may not be the same as when it is turned on, and its real high heat is generated when it is running instantaneously: the effectiveness of fin radiators in absorbing heat to the central processor No. The method takes away the largest amount of chirp from the integrated circuit in the shortest time, so the actual benefits it achieves are still quite limited. The inventors have considered the effectiveness of the existing finned radiators in terms of heat transfer : No, it has been developed a cylindrical heat-conducting tube that can absorb a large amount of heat in an instant. It is a tubular container made of metal material and contains = as a fluid 'in it, as shown in the fifth figure. The cylindrical heat pipe (90) is fixedly arranged on the base plate (9 2), and a heat dissipation fan (9 4) can be set on the side of the base plate (9 2), so that the base plate (9 2) It is mounted on the top surface of the integrated circuit (not shown) to achieve the effect of absorbing a large amount of heat instantly. Of course, it can cooperate with the cooling fan (9 4) to slowly dissipate the absorbed heat to the external environment. To ensure the normal operation of the integrated circuit; of course, the cylindrical guide The heat pipe (90) can also be used with the fins (96) as shown in the sixth figure to improve its heat dissipation effect, and has better practicality. However, the cylindrical heat pipe (90) has not been hitherto There is an ideal manufacturing method 'The heat transfer tube of a general refrigerating air conditioner is drawn from a metal circular tube, and the two ends are made by pressure bonding or welding.' This method is only suitable for heat conduction with a small diameter. The two ends of the heat pipe made by the method are arc-shaped ends or sharp ends, and cannot be used to attach to the top surface of the integrated circuit to absorb heat, so this type of processing method is not applicable to the foregoing Processing and manufacturing of cylindrical heat pipe (90). The paper size is applicable to China Solid Standard (CNS) Al specification (210 X 297 meals) (Please read the precautions on the back before filling this page) I Binding- -------line-

Jing-Ministry of Intellectual Property Bureau, Zhen Er Consumer Co., Ltd. P-" ^ Printed by Intellectual Property Co., Ltd. Employee Consumer Cooperatives 4. 6 63 2 9 A? ~ ____B7___ V. Description of Invention (3) ^ Currently, manufacturers At least one end of the cylindrical heat conductive member (90) with a flat plate shape, the manufacturing method adopted is a round tube (g00) as the base material, and a plate (90.2) is welded before its -end. ) Into a cylindrical shape, and then the working fluid is injected from the opening at the other end, and the opening is closed by a sealing plate (9 0 2). 'This manufacturing method can produce a cylindrical shape with flat ends. The heat-conducting tube (90), but the ring-shaped welded sealing line (904) around the sealing plate (90) formed an obstacle to heat conduction, so that the cylindrical heat-conducting tube (90) was placed in the integrated circuit On the top surface, the heat absorbed by the sealing plate (9 0 2) can only be transmitted indirectly through the welding line (9 0 4) or through the working fluid to the surface of the surrounding circular pipe (9 0 0). Although it can still quickly absorb the integrated circuit's high-power operation instantaneously through the setting of the working fluid, A large amount of heat is generated, but its heat dissipation efficiency is slower than the rate of heat absorption. In addition, although the working fluid in the cylindrical heat pipe (g 0) can absorb and accumulate a large amount of heat, it is found after careful analysis that the heat generated by the integrated circuit passes through the cylindrical heat pipe (9 0) The conduction efficiency of the sealing plate (9 0 2) at one end to the working fluid is also not good, because the workflow system is stored in a closed space inside the cylindrical heat pipe (gq), and the convection efficiency it generates is extremely poor. The efficiency of the heat transfer from the bottom sealing plate (9 0 2) of the cylindrical heat transfer tube (90) to the overall working fluid is not perfect. Therefore, the bottom surface seal (9 0 2) of the cylindrical heat transfer tube (90) will occur. ) The temperature has been quite high, the temperature of the top surface of the cylindrical heat transfer tube (g 〇) is still quite low, which is also the existing cylindrical heat transfer tube of this type. This paper applies the Chinese National Standard (CNS) A4 specification. (210: <? 97 male dragon) Install -------- order --------- line (please read the precautions on the back before filling in this page) ^ 46 6329 A7 V. Invention Description (

(90) Problems not considered in the initial design. The present inventor has taken into account that the existing cylindrical heat-conducting pipe (90) ^ failed to fully utilize 'is to improve the lack of it, while developing the method of the present invention with industrial value, according to the method of the present invention: Enough to make heat conduction The cylindrical guide and heat pipe with excellent effect ^ The main purpose of the present invention is to provide a method for manufacturing a cylindrical heat transfer tube, which is mainly formed by processing a copper sheet through a die-a cylindrical casing, and then a cylindrical casing A copper pillar is inserted in the middle, and the copper powder is contained in the cylindrical shell. After the iron, the copper powder is sintered in the cylindrical shell towel. After the sintering, the copper pillar is drawn out and sealed at the opening of the cylindrical shell- A cap with a suction σ, and then the working fluid is injected into the cylindrical shell. Finally, the cylindrical shell is evacuated from the suction port and the suction port is sealed to complete a cylindrical stern tube with a flat bottom surface. . V ,,,, / In order to make the reviewing committee further understand the aforementioned purpose and the features of the present invention, 'the detailed description is attached as follows: Schematic part Γ, 丨 1 — I | 丨 丨 1 | 丨 丨 ί 仏 ^ ·-(Please read the notes on the back before filling out this page) Order the first, the fourth figure, the fifth figure, the sixth figure, and the third figure: the schematic diagram of the manufacturing method of the present invention. Schematic diagram of the appearance of a vein-shaped heat pipe made according to the manufacturing method of the present invention. : It is the existing round-shaped heat-conducting pipe—the reference drawing of using state. . It is another reference drawing of the existing cylindrical heat pipe. ) Drawing number part: 0) Copper sheet r η (1 2.) Cylindrical shell 4) Opening f 9 n w h (2 〇) Copper post

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Five 'invention description (Xi (3 2) middle hole (50)) cap (54) sealing block (900) round tube (900) 4 sealing line (94) cooling fan 46 6329 (3 0) Steel powder (4 0) Working fluid (5 2) Suction port C90) Cylindrical heat conducting (9 0 2) Sealing plate '(9 2) Base (9 6) Fin In the manufacturing process, S and S are not based on-the heat pipes are in each section, and the cross-sectional view in the figure-2 shows the manufacturing method of the present invention 'π to see that the copper sheet (1 0) is formed without being issued. Once the worker 1 υ) punched the cylindrical shell (12) on the bottom surface, a copper post (20) was inserted from the cylindrical shell-like m 'mouth (14), and the cylinder i Place the copper powder (30) in the middle volume, and then sinter the copper powder (30 isomorphic slave body (12)). In the sintering process, the copper pillar (20) can be used for heat conduction, and the sintering temperature is about丄 〇〇 After the scale (3 Q) sintering is completed, the copper column (2 G) is pulled out. At this time, as shown in the upper part of the second figure, a sintered product is placed in the cylindrical shell (1 2). Porous steel powder (30), and a copper pillar (20) is formed therein and is left after being drawn out (3 2), and then sealed a cap (50) with a pomelo gas port (52) at the opening C 1 4) of the cylindrical casing (χ 2) (as shown below the second figure), the seal The cover (50) can be sealed to the opening (1 4) of the cylindrical casing (1 2) by welding, and then the working fluid (4 0) is injected into the cylindrical casing from the pomelo mouth (5 2). (1 2) C is shown in the upper part of the third figure), and the paper size of the tube is applied to the Chinese national standard (CXS) A4 specification (21〇X 297g t) at the air outlet (52) (Please read the notes on the reverse side and fill in this page) Binding --------- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs * x 4 6 6329

V. Description of the invention (/, printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs = 〇2) and evacuate, and seal the air outlet (52) ... "'Formed at the drawing port (52)-sealing block (Figure Hr gas port (52) is indeed closed, and complete the cylindrical guide. Heat pipe as in the fourth a does not have a flat bottom surface. The cylindrical guide has a flat bottom surface: it can fit closely to the top surface of the integrated circuit, and its cylindrical shell (made of copper sheet (1 Q)-body molding), so it can The heat received on the bottom surface is directly transmitted to the surrounding wall of the cylinder, and the conduction efficiency is very good. Moreover, the sealing line between the cover (50) and the cylindrical shell (12) has almost no effect on the overall heat conduction efficiency. The sintered Tongtai (30) housed in the heat pipe can conduct the heat at the bottom surface and the wall surface at the highest speed, and quickly transfer the heat to the overall working fluid (40). A large amount of heat generated instantaneously is absorbed and stored by the working fluid (40), and is made by the method of the present invention. The inside of the heat pipe is not filled with the working fluid (40), and it is evacuated in the remaining space, and there is also a proper gap between the sintered copper powder (3Q), so the copper When the powder (3 0) and the work flow body (4 0;) have thermal expansion and contraction effects due to temperature changes, the adverse effects on the cylindrical shell (2 2) can be minimized. It can be seen from the description that the present invention is arranged with an excellent manufacturing process, < to make such a cylindrical heat-conducting pipe more convenient for processing and manufacturing, and at the same time, it can produce a cylindrical heat-conducting pipe with a perfect structure, which is indeed a very excellent The method '爰 filed according to the law and filed an application. This paper ruler applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

I 2 I Shiyue I First read the notes on the back and then fill in the page f. I Thread

Claims (1)

466329 | D8, scope of patent application 1 _ A method for manufacturing a cylindrical heat-conducting tube, the process of which includes: processing a copper sheet through a die to form a cylindrical shell, inserting a copper post into the cylindrical shell, The copper powder is contained in the body, and the copper powder is sintered in a cylindrical shell. After sintering, the copper pillars are drawn out, and a cover with an air outlet is sealed at the opening of the cylindrical shell. The working fluid is injected into the cylindrical shell. At last, the vacuum of the cylindrical casing is evacuated by the Suan exhaust port and the exhaust is sealed .------------ ^ --- f Please read the -Issue on the back before filling in this Page} The employee of the Intellectual Property Bureau of the Ministry of Yanji printed the cooperative to print a cylindrical heat transfer tube with a flat bottom surface. 2. The method for manufacturing a cylindrical heat-conducting tube as described in item 1 of the scope of patent application, wherein the copper pillar is used for heat conduction in the sintering process a 3 _ The cylindrical heat-conducting method is described in item 1 or 2 of the scope of patent application Tube manufacturing method 'wherein the sintering temperature is about 1 ◦ ◦. Alas. 4 · The method for manufacturing a cylindrical heat-conducting tube as described in item 1 of the scope of patent application, wherein porous copper powder is formed in the cylindrical shell after the copper powder is sintered. 5. The cylinder as described in item 1 of the scope of patent application Method for manufacturing a shaped heat conducting tube 'wherein the cover is welded to the opening of the cylindrical casing σ 6 as described in the method for manufacturing a cylindrical heat conducting tube as described in the patent claim # 1, in which Wei Zuo flow system 'Injected into the cylindrical body from the cap's suction port. 7. The method for manufacturing a cylindrical heat transfer tube according to item 1 of the scope of the patent application, wherein the exhaust port is formed in a thin tube shape. The size of wood paper is applicable to the Chinese National Standard (CNS) A4 phase 楗 9 Μ ^-丄-I > --Order ----- n — ϋ I line 'A6 6329 AS B8 CS D8, patent scope 8' as applied The manufacturing method of the cylindrical heat transfer pipe described in item 7 of the patent scope, wherein the sealing of the air suction port is compressed and sealed. 9 · The method for manufacturing a cylindrical heat pipe as described in item 1 of the scope of patent application, wherein the seal of the air suction port is welded and sealed with solder. 1 0 The method for manufacturing a cylindrical heat transfer tube as described in item 1 of the scope of patent application, wherein after the exhaust port is compressed and sealed, it is welded and sealed with solder. 0 1 1 The method for manufacturing a cylindrical heat pipe described above, wherein a sealing block is formed at a seal of the air suction port. (Please read the notes on the back before filling out this page) 裒 -------- Order ί • Ξι: I-I m line. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 10 This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm)