1271502 九、發明說明： 【發明所屬之技術領域】 本發明與熱管相關，尤指藉由熱管折狀毛細結構層所形成之流道 、 結構以提昇熱性之熱管毛細結構層及其製造方法。 、 【先前技術】 隨著大型積體電路技術之不斷進步及廣泛應用，資訊產業之發展 突飛猛進，高頻高速處理器不斷推出。由於高頻高速運行使得處理器 單位時間產生大量熱量，如不及時排除這些熱量將引起處理器自身溫 度之升尚，對系統之安全及性能造成很大影響，目前散熱問題已經成 為新一代高速處理器推出時必需解決之問題。 目前’由於熱管具有較快的傳熱速度，而廣泛應用於電子元件散 熱領域。常用之熱管包括一具有一定真空度之密封管形殼體，且在殼 體内5又有燒結而成之毛細結構層並於殼體内充有適量之工作液體，該 熱管一端為蒸發端而另一端為冷凝端。當熱管蒸發端受熱時，工作液 體条發汽化’蒸汽在微小壓差下流向冷凝端放出熱量後凝結成液體， ’夜體籍由毛細結構層產生之毛細壓力差回流至熱管蒸發端，從而使熱 里由熱管蒸發端迅速傳至冷凝端。然，熱管之工作性能受毛細壓力差 和回流阻力二因素之影響，該二因素隨著毛細結構之毛細孔隙之大小 而變化，當毛細孔隙較小時，其具有較大毛細壓力差，可驅動凝結液 體進入毛細結構内並向蒸發端回流，但另一方面，毛細孔隙之減小使 工作液體回流之摩擦力和粘滯力增大，即工作液體回流阻力增大，導 6 1271502 充適量之汽化熱高、流動性好、彿點較低之液態物質作為工作液體， 如水、乙醇、丙酮等。 毛、。構層30包括沿熱f 1〇之徑向分層設置之折狀絲網4〇及平 - 硫絲網50，該兩絲網40、50均由銅、不錢鋼' 鐵絲或其它金屬線編 •織而成’各絲線之間形成細小且致密之⑽，從而形成多孔結構提供 毛細力驅動工作液體回流’在實際應用中可根據絲網材質與工作液體 齡之相溶性來確定’保證絲網與卫作液體之間不會發生化學反應。其中 平Φ狀相50置於最崎，折狀絲網置於該平碌細$續管體 20之間與且管體2〇之内壁面緊密接觸。 如第二_示，平面狀絲網5()沿鮮之關方向展暇一平面結 構。 如第三圖所示為該折狀絲網4〇沿熱管1〇圓周方向之展開圖，該 折狀絲網4〇呈90。連續騎延伸，形成交替之水平段C及垂直段妨， > 其中水平段42包括分別位於垂直段46兩端之上水平段43及下水平段 44 ’减第-圖’該上水平段43與平面狀絲網5Q緊密接觸，下水平 段44與管體20内壁面緊密接觸，從而該折狀絲網4〇之兩相鄰垂直段 46之間形成流道48，該流道48沿熱管1〇軸向延伸，由於折狀絲網4〇 捲成環狀而變形，使該流道48於熱管内之橫截面大致呈梯形。 熱管10工作時，熱管10蒸發端之工作液體吸熱快速蒸發至熱管 10之冷凝端並於該冷凝端向外界釋放熱量而冷凝成液體，此時主要由 平面狀絲網50之多孔結構提供液體回流之毛細力驅動冷凝之液體向蒗 1271502 發端回流，而折狀絲網40所形成夕、、亡、爸 机、48橫截面較大，有欵提 體之回流速度，從而同時達到高的毛 叶欣 ㈣、、、田力及而回流速度，提昇 之傳熱性能。 ' 10 上述實施例中，折狀絲網4〇呈9〇。連續彎折從而形成橫截面 形之流道48 ’可以理解地’該折狀絲網40並不限於上述之彎折方1， 只要其於熱管10内形成流道結構即可。1271502 IX. Description of the Invention: [Technical Field] The present invention relates to a heat pipe, and more particularly to a heat pipe capillary structure layer and a method for manufacturing the same, which are formed by a heat pipe folded capillary structure layer. [Prior Art] With the continuous advancement and wide application of large-scale integrated circuit technology, the development of the information industry has advanced by leaps and bounds, and high-frequency high-speed processors have been continuously introduced. Due to the high-frequency high-speed operation, the processor generates a large amount of heat per unit time. If the heat is not removed in time, the temperature of the processor itself will rise, which has a great impact on the safety and performance of the system. At present, the heat dissipation problem has become a new generation of high-speed processing. The problem that must be solved when the device is launched. At present, the heat pipe has been widely used in the field of heat dissipation of electronic components because of its fast heat transfer rate. The commonly used heat pipe comprises a sealed tubular shell with a certain degree of vacuum, and a sintered capillary structure layer is arranged in the casing 5 and an appropriate amount of working liquid is filled in the casing, and one end of the heat pipe is an evaporation end. The other end is the condensation end. When the evaporation end of the heat pipe is heated, the working liquid strip is vaporized. 'The steam flows to the condensation end to release heat under a slight pressure difference and then condenses into a liquid. The night body is returned to the evaporation end of the heat pipe by the capillary pressure difference generated by the capillary structure layer. The heat is quickly transferred from the evaporation end of the heat pipe to the condensation end. However, the performance of the heat pipe is affected by the capillary pressure difference and the backflow resistance. The two factors vary with the size of the capillary pores of the capillary structure. When the capillary pores are small, they have a large capillary pressure difference and can be driven. The condensed liquid enters into the capillary structure and flows back to the evaporation end. On the other hand, the reduction of the capillary pores increases the friction and viscous force of the working liquid backflow, that is, the working fluid backflow resistance increases, and the guide 6 1271502 is filled. Liquid substances with high vaporization heat, good fluidity and low Buddha points are used as working liquids such as water, ethanol and acetone. hair,. The layer 30 comprises a folded screen 4 〇 and a flat-sulfur screen 50 arranged along the radial direction of the heat f 1 , both of which are made of copper, stainless steel 'wire or other metal wire Weaving and weaving 'small and dense between the wires (10), so as to form a porous structure to provide capillary force to drive the working fluid to reflow' in actual application, according to the compatibility of the wire mesh material with the working fluid age to determine 'guaranteed wire There is no chemical reaction between the net and the liquid. The flat Φ phase 50 is placed in the most sturdy, and the folded mesh is placed between the flat and continuous tubular bodies 20 and in close contact with the inner wall surface of the tubular body 2 . As shown in the second example, the planar screen 5() is formed in a plane structure in the direction of the fresh direction. As shown in the third figure, the folded screen 4 is expanded along the circumferential direction of the heat pipe 1 , and the folded wire 4 is 90. The continuous ride extends to form alternating horizontal segments C and vertical segments, > wherein the horizontal segments 42 include horizontal segments 43 and lower horizontal segments 44' respectively above the vertical segments 46, minus the first to fourth upper segments 43 In close contact with the planar screen 5Q, the lower horizontal section 44 is in close contact with the inner wall surface of the tubular body 20, so that a flow passage 48 is formed between the two adjacent vertical sections 46 of the folded screen 4, which is along the heat pipe The axial extension of the crucible is deformed by the fold-shaped screen 4, and the cross section of the flow passage 48 in the heat pipe is substantially trapezoidal. When the heat pipe 10 is in operation, the working liquid of the evaporation end of the heat pipe 10 absorbs heat to rapidly evaporate to the condensation end of the heat pipe 10 and releases heat to the outside at the condensation end to be condensed into a liquid. At this time, the liquid return is mainly provided by the porous structure of the planar wire mesh 50. The capillary force drives the condensed liquid to return to the starting end of the 蒗1271502, and the folded mesh 40 forms a eve, a dead, a dad, a 48 cross-section larger, and has a reflow speed of the raking body, thereby simultaneously achieving a high leaf Xin (four),,, Tian Li and the reflow speed, improve the heat transfer performance. '10 In the above embodiment, the folded wire mesh 4 is 9 turns. The flow path 48' is continuously bent to form a cross-sectional shape. It is understood that the folded mesh 40 is not limited to the above-described bent side 1 as long as it forms a flow path structure in the heat pipe 10.
如第四圖及第五騎示為折狀絲網之另—實施方式，折狀絲網_ 連續幫折，其橫截面大致呈鑛齒狀，折狀絲網於熱管姻内形成 橫截面大致呈三角形之流道448。 如第六圖及第七圖所示為折狀絲網之再一實施方式，折狀絲網_ 包括交替設置之-水平段642及兩傾斜段646，該兩傾斜段_之橫截 面呈鑛齒狀’二者之連接處與管體2G之内壁面緊密接觸，水平段⑽ 與平面狀絲網50緊密接觸，從而該兩傾斜段_之間形成橫截面呈三 角形之第-流道648，該水平段642與其兩側相鄰之傾斜段_之間形 敍致呈梯形之第二流道648，，該第—流道⑽與第二流道⑽，沿熱 官610之圓周方向間隔分佈。可以理解地，也可將該折狀絲網_反 向設置使折狀絲網_之水平段642係、與管體2()接觸，而彎折段_ 與水平狀絲網50相接觸。 以上貫施方式中，係將折狀絲網夾置於管體2〇與平面狀絲網％ 之間可以理解地’也可將折狀絲網置於最内層，而平面狀絲網夹 置於管體20與折狀絲網之間。 9 ^ 1271502 另，以上所述之毛細結構層30僅包括相疊設之一層平面狀絲網5〇 及一層折狀絲網，可以理解地，該毛細結構層3〇也可由三層或更多層 由平面狀絲網及折狀絲網相疊置而成之絲網結構，如第八圖所示，毛 細結構層30,包括兩層平面狀絲網5〇及夾置於該兩平面狀絲網％之間 之折狀絲網40，如第九圖所示毛細結構層3Q”包括兩層折狀絲網4〇及 夾置於該兩折狀絲網4〇之間之平面狀絲網5〇。 以上所述各絲網層均採用相同網目之絲網，即各絲網之孔隙相 同’可以理解地，各絲網之孔隙也可不同，如平面狀絲網與折狀絲網 採用不同網目之絲網，同理，各種絲網也可分別採用不同網目之絲網， 如第十圖所示，毛細結構層13〇包括兩層折狀絲網及一夾置 於該兩折狀絲網140、140,之間之平面狀絲網15〇，其中折狀絲網14〇 之孔隙最小，平面狀絲網15〇孔隙居中，折狀絲網14〇，孔隙最大。 第十一圖為本發明熱管10之毛細結構層3〇之製造方法流程圖， 其包括以下步驟：首先提供至少一呈片狀之平面狀絲網5〇及一呈片狀 之折狀絲網40 ;然後將片狀之絲網4Q、5Q捲成筒狀體；最後將筒狀體 置入官體20内。下面結合第十二圖至第十三圖詳細介紹本發明熱管毛 細結構層之製造方法。 首先，提供一平面狀絲網5〇(如第二圖所示)及一折狀絲網4〇(如第 二圖所不）’該折狀絲網40係由一平面狀絲網5〇彎折而成，通過上下 兩換具同時對平面狀絲網5Q進行沖壓，從而形成折麟網4G，可以理 解地，该折狀絲網40也可由其它方式製成。For example, the fourth figure and the fifth ride are shown as another embodiment of the fold-shaped wire mesh, the fold-shaped wire mesh _ continuous folding, the cross section of which is roughly in the shape of a mineral tooth, and the folded wire mesh forms a cross section in the heat pipe. A triangular flow path 448. As shown in the sixth and seventh figures, a further embodiment of the folded wire mesh _ includes an alternately disposed horizontal section 642 and two inclined sections 646, the cross section of which is a mine The connection between the teeth is in close contact with the inner wall surface of the tubular body 2G, and the horizontal section (10) is in close contact with the planar mesh 50, so that a first-flow passage 648 having a triangular cross section is formed between the two inclined sections _, The horizontal section 642 and the two adjacent inclined sections _ are formed into a trapezoidal second flow passage 648, and the first flow passage (10) and the second flow passage (10) are spaced apart along the circumferential direction of the heat official 610. . It will be appreciated that the folded screen may also be arranged such that the horizontal section 642 of the folded screen _ is in contact with the tubular body 2 () and the bent section _ is in contact with the horizontal screen 50. In the above-mentioned method, the folding screen is placed between the tube body 2〇 and the planar screen%. It can be understood that the folding screen can also be placed in the innermost layer, and the flat screen is sandwiched. Between the tubular body 20 and the folded mesh. 9 ^ 1271502 In addition, the above-mentioned capillary structure layer 30 only includes a layer of planar screen 5 相 and a layer of folded screen. It is understood that the capillary structure layer 3 can also be composed of three layers or more. The wire mesh structure is formed by stacking a flat wire mesh and a folding wire mesh. As shown in the eighth figure, the capillary structure layer 30 includes two layers of planar wire mesh 5〇 and is sandwiched between the two planes. The folded screen 40 between the screens %, as shown in the ninth figure, the capillary structure layer 3Q" comprises two layers of folded screens 4〇 and a flat wire sandwiched between the two folded screens 4〇 Net 5〇. Each of the above-mentioned mesh layers uses the same mesh mesh, that is, the same mesh has the same pores. 'Understandably, the pores of each mesh can also be different, such as flat mesh and folded mesh. The screens of different meshes are used. Similarly, various screens can also adopt different mesh screens. As shown in the tenth figure, the capillary structure layer 13 includes two layers of folding screens and a clip placed on the two folds. The screens 140, 140, between the planar screen 15 〇, wherein the fold-shaped screen 14 has the smallest aperture, the planar screen 15 〇 aperture In the meantime, the fold-shaped screen 14 turns, and the pores are the largest. The eleventh figure is a flow chart of the manufacturing method of the capillary structure layer 3 of the heat pipe 10 of the present invention, which comprises the following steps: firstly providing at least one flat sheet-like wire mesh 5〇 and a sheet-like folded mesh 40; then the sheet-like screens 4Q, 5Q are rolled into a cylindrical body; finally, the cylindrical body is placed in the body 20. The following is combined with the twelfth to the The thirteenth diagram details the manufacturing method of the heat pipe capillary structure layer of the present invention. First, a planar screen 5〇 (as shown in the second figure) and a folded screen 4〇 (as shown in the second figure) are provided. The fold-shaped screen 40 is formed by bending a flat screen 5〇, and the flat screen 5Q is simultaneously punched by the upper and lower shifts to form a folding net 4G. It is understood that the folded wire is The mesh 40 can also be made in other ways.
1271502 對官體20抽真空及封口，即可得到熱管10。 綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟， 以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之人士，在 菱依本發醫神所作之等效修飾或變化，皆應涵蓋於町之中請 圍内。 月 【圖式簡單說明】 弟圖係熱管沿橫截面示意圖。 第二圖係平碌、_沿熱管關方向制示意圖。 第三圖係折狀絲網沿熱管圓周方向展開示意圖。 第四圖係折狀絲網另一實施方式示意圖。 第五圖係第四_示折狀絲網於鮮之示意圖。 第/、圖係折狀絲網又_實施方式示意圖。 弟七圖係第六圖所示折狀絲網應用於熱管之示意圖。 弟八圖係鮮另—實施方式«面示意圖。 第九圖係熱管又—實施方式賴面示意圖。 第十圖係熱管再-實施方式橫戴面示意圖。 第圖縣發紅細結_製造方法流程圖。 第十二圖係毛細結構層捲設於拉桿示意圖。 第十—圖係將毛細結構層置入管體示意圖。 【主要元件符號說明】 熱管 】〇、410、610 拉桿 100 12 • 1271502 毛細結構層130 、30、30,、 30，， 平面狀絲網 150 > 50 水平段 42 ^ 642 下水平段 44 垂直段 46 第一流道 648 折狀絲網 140、140’、40、440 管體 上水平段 流道 448 傾斜段 第二流道 、640 20 43 、48 646 648,1271502 The heat pipe 10 can be obtained by vacuuming and sealing the official body 20. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above descriptions are only preferred embodiments of the present invention, and those skilled in the art will be able to cover the equivalent modifications or changes made by Lingyi. Month [Simple diagram of the diagram] The diagram of the heat pipe along the cross section. The second picture is a schematic diagram of the flat, _ along the heat pipe off direction. The third figure is a schematic view of the folded mesh along the circumferential direction of the heat pipe. The fourth figure is a schematic view of another embodiment of a folded mesh. The fifth figure is a fourth schematic diagram showing the folded screen. The figure / figure is a schematic view of the folded screen. The seventh figure is a schematic diagram of the folded wire mesh shown in the sixth figure applied to the heat pipe. The younger brother's eight pictures are fresh--implementation method. The ninth figure is a schematic diagram of the heat pipe and the embodiment. The tenth figure is a schematic diagram of the heat pipe re-implementation method. Ditu County redness _ _ manufacturing method flow chart. The twelfth figure is a schematic diagram of the capillary structure layer being wound on the tie rod. The tenth-figure is a schematic diagram of placing the capillary structure layer into the pipe body. [Main component symbol description] Heat pipe] 〇, 410, 610 tie rod 100 12 • 1271502 Capillary structure layer 130, 30, 30, 30,, planar screen 150 > 50 Horizontal section 42 ^ 642 Lower horizontal section 44 Vertical section 46 first flow passage 648 folding screen 140, 140', 40, 440 upper horizontal section of the pipe 448 inclined section second flow path, 640 20 43 , 48 646 648,
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