1343986 六、 [0001] [0002] [0003] [0004] 100年04月06日接正替换頁1343986 VI [0001] [0002] [0003] [0004] On April 06, 100, the replacement page was replaced.
It 094141521 發明說明： 【發明所屬之技術領域】 本發明係關於一種熱管。 【先前技術】 隨著電子產業不斷發展，電子元件（尤係中央處理器） 運行速度和整體性能在不斷提升。然而，隨之產生的高 瓦特數的廢熱問題必須克服。而熱管由於具有可利用潛 熱快速輸送大量熱能、溫度分佈均勻、構造簡單、重量 輕、無需外加作用力、壽命長、低熱阻及可遠距離傳熱 等特點，被廣泛用來解決散熱問題。 熱管係主要由真空密封的管形殼體、其内壁上設置之毛 細結構（如粉體燒結物、溝槽結構、絲網結構等）及其 内裝入適量之工作液體（如水、乙醇、丙酮等）組成。 第一圖所示為一種習知技術中常用於電腦散熱模組之熱 管，該散熱模組利用熱管内之工作流體的相變作用，將 熱源的熱量快速傳導至散熱鰭片上，再利用風扇將散熱 鰭片上之熱能快速有效的排出電腦機殼外部。該熱管管 殼10内壁面設置有毛細結構20，管殼10内密封有適量工 作液体。該熱管包含蒸發段40、絕熱段50及冷凝段60三 部分，當工作流體在蒸發段40受熱汽化，該蒸汽流體因 相變產生潛熱而能帶走大量熱能並沿熱管中心的蒸汽流 體通道70作高速運動，蒸汽流體在冷凝段60因放熱作用 而冷凝成液體，藉由重力或管殼10之毛細力作用下通過 液態流體通道80回到加熱端40，如此連續循環。 上述結構中，由於毛細結構設置於沿管殼内壁面，使蒸 表單編號A0101 第3頁/共15頁 1003117152-0 [0005] 1343986 100年04月06日修正替換頁 氣流體流動至冷凝段時其熱量必需通過毛細結構部及其 内之冷卻液體與管殼壁面進行換熱而傳導至散熱鰭片上 ，使蒸汽流體與管殼壁面的換熱阻力增大其放熱減慢， 影響熱管與散熱鰭片等換熱速度。 [0006] 第二圖及第三圖所示為上述熱管的蒸汽液體與冷凝液體 在管殼10内部逆向流動。由於冷凝液體與蒸汽液體透過 毛細結構20的間隙互相接觸’可能發生夾帶限制（entrainment limit) 造成剪 切力作用而冷凝液想與蒸汽 液體的循環流動受阻並產生對冷凝液體傳送至蒸發段之 ^ 前再加熱情形，導致熱傳輸效能的遽降，且隨著功率的 增加此限制更加嚴重，從而嚴重影響傳統熱管的傳熱性 能。 [0007] 為解決上述傳統單一熱管的問題’業界開發出迴路熱管 (Loop Heat Pipe，LHP)，如第四圖所示。該回路式 熱管亦包含蒸發段4〇，、絕熱段5〇，及冷凝段6〇,三部 分，其蒸發段40’及冷凝段50，設有毛細結構2〇，，該 迴路式熱管之最基本製作原理是將原先傳統熱營合一的 Θ 蒸汽流體通道70與液態流體通道80，以串聯方式展開而 區分為蒸汽流體通道及液態流體通道80’予以重新 組合連接而構成一循環迴路式超熱傳導體，即所謂的迴 路式熱管以取代原來的傳統的單管式熱管。雖然迴路式 熱管比傳統熱管具有更優越的性能，但由於無法突破技 術的瓶頸，例如：加熱中心須偏離中心位置、充填工作 流體不易、密封技術層面高等原因使其製程複雜、 高並且冷凝段位置的散熱鰭片不易固定、組裝空間大等 094141521 表單編號A0101 第4頁/共15頁 1003117152-0 1343986 [0008] ^ [0009] [0010] [0011] 094141521 100年04月06日修正替換頁 原因使其不易運用，最後導致無法大量生產。因此，如 果能以現行熱管的量產製造技術再輔以結構的創新設計 而能達到類似迴路式熱管的性能，則不但具備量產性同 時亦提供解決目前高功率熱量問題及降低其生產成本， 是業界汲汲努力的目標。 【發明内容】 有鑑於此，有必要提供一種蒸汽流體與管殼壁面換熱快 進而具高效熱導性能的熱管。 一種熱管，包括一密封的金屬管殼，其内裝入適量工作 流體，該管殼設有沿管殼中心軸向延伸並與管殼内壁面 具一定間隙的毛細結構，使該管殼内部形成毛細結構部 及位於毛細結構與管殼内壁面間的空腔部。 所述熱管與習知技術相比具有如下優點：由於該熱管毛 細結構設置於管殼中心，該毛細結構可預先製造後插入 熱管内，其製程簡單，並且其沿管殼内壁面形成空腔部 ，而其内流動的蒸汽流體可直接與管殼壁面進行換熱， 其換熱阻力小，有利於加快將熱量傳導出去。 本發明熱管的進一步改進在於，該熱管還包括至少一設 置於該毛細結構朝向空腔部的表面之汽一液分流隔板， 其至少使熱管中心部之毛細結構部及空腔部相分隔。將 原先並聯式蒸汽流體通道與液態流體通道，中間以隔板 方式區分為蒸汽流體通道及液態流體通道，從而使得高 溫蒸汽能快速傳輸至冷凝段，並避免絕熱段之高溫蒸汽 對冷凝回流液體的再加熱效應、進而改善汽一液兩相之 逆流衝擊現象。另外，使用汽一液分流隔板可降低芯棒 表單編號A0101 第5頁/共15頁 1003117152-0 1343986 _ 100年04月06日班正替换頁 與毛細結構間的擴散反應或熱膨脹殘留應力問題所導致 芯棒脫膜易黏著而造成不良率的增加。 【實施方式】 [0012] 以下參閱第五圖至第八圖就本發明之較佳實施例詳加說 明，俾利完全瞭解。 [0013] 請參閱第五圖為本發明熱管之一較佳實施例，其主要包 含一金屬管殼100、毛細結構200、汽—液分流隔板300 及金屬管殼100内填充的適量工作流體（圖未示）。該熱 管將毛細結構200及隔板300設置於管殼1〇〇内並填充工 作流體，然後予以抽真空並封閉管殼丨〇〇。該毛細結構 200由在熱管管殼1〇〇兩端處之内壁面上設置的端部毛細 結構20 0及管殼1 〇〇中心沿管殼1 〇〇軸向延伸至端部毛細 結構200的中心毛細結構2〇〇組成。該中心毛細結構2〇〇 與管殼10 0内壁面具有一定間隙而形成空腔部，該中心毛 細結構2 00朝向空腔部的表面上貼設汽一液分流隔板3〇() ，該中心毛細結構200内設計為液態流體通道8〇〇，而在 汽一液分流隔板300的周圍的空腔部設計為蒸汽流體通道 700。由於該空腔部沿管殼丨〇〇内壁面形成，其内流動的 蒸>又流體可直接與管殼1〇〇壁面進行換熱，相對於習知技 術其換熱阻力小，有利於加快將熱量傳導出去。另外， 該中心毛細結構可直接製造完成後插入管殼即可，其製 程簡單。該熱管亦包含蒸發段4〇〇、絕熱段5〇〇及冷凝段 600三部分。該隔板300設置於對應絕熱段5〇〇的中心毛 細結構200朝向空腔部的表面上，其目的為防止隔板3〇〇 兩端延及蒸發段4〇〇與冷凝段6〇〇處而影響在蒸發段4〇() 094141521 表單編號A0101 第6頁/共15頁 1003117152-0 1343986 —--- 100年04月06日修正替換頁 與冷凝段600的蒸汽流體與冷凝液體的正常循環流動。 [0014] 其工作流體的作動原理為：當熱管痛·發段4 0 0受熱後傳導 至熱管内部工作流體’工作流體由液態轉變成汽態的相 變作用使得大量的熱被帶離蒸發段40 〇，其經由絕熱段 500之蒸汽流體通道而傳輸至冷凝段6〇〇，絕熱段500 區域因設置汽—液分流隔板300使得蒸汽流體通道700内 只有單純的蒸汽流通，而在冷凝段600的毛細結構200内 被冷凝之液態流體通道800來輸送至蒸發段400。而無汽 ^ —液兩相逆流所產生的剪應力作用’因此’高溫的蒸汽 並不會對經冷凝作用後的工作流體施以再加熱效應，可 有效提升工作流體的吸放熱效應’進而提高熱管性能。 [0015] 本發明熱管由於使用汽_液分流隔板貼設於毛細結構表 面上，改善芯棒的脫膜性能，可降低芯棒與毛細結構間 的擴散反應或熱膨脹殘留應力問題所導致芯棒脫膜易黏 著而造成不良率的增加。 I [0016] 請再參閱第六圖為本創作之另一實施例，其與第五圖主 要差異在於毛細結構的設計不同，在蒸發端4〇〇沿金屬管 殼100壁面延伸設置有與中心毛細結構2〇〇相通之毛細結 構200’ ，當熱源作用於蒸發端400時其内之工作流趙可 以急速的產生相變作用而以蒸汽狀態沿蒸汽通道7 〇 〇快速 前進至冷卻端600，而經放熱冷凝後沿液態通道8〇〇藉毛 細作用力回到蒸發端400，以完成一循環。 [0017]請參閱第七圖為本創作再一實施例，其與第五圖的主要 差異在於金屬管殼100内壁面與汽—液分流隔板3_設 094141521 表單編號A0101 第7頁/共15頁 1003117152-0 1343986 100年04月_修正 置四個加強肋31 〇 ’以利於熱管的折彎打扁製程。 [0018]請再參閱第八圖為本創作之又—實施例，其與第五圖主 要差異在於金屬管殼1 〇 0内部沿管殼軸向延伸設置五個平 行的挺狀毛細結構200，每一毛細結構200表面上設置有 汽一液分流隔板3〇〇，而毛細結構200形成液態通道800 ’其餘之空腔部形成蒸汽流體通道800，其具有多重迴路 熱管之功能。It 094141521 DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a heat pipe. [Prior Art] With the continuous development of the electronics industry, the operating speed and overall performance of electronic components (especially central processing units) are constantly increasing. However, the resulting waste heat problem of high wattage must be overcome. The heat pipe is widely used to solve the heat dissipation problem because of its ability to rapidly transfer a large amount of heat energy, uniform temperature distribution, simple structure, light weight, no additional force, long life, low thermal resistance and long-distance heat transfer. The heat pipe system is mainly composed of a vacuum-sealed tubular shell, a capillary structure (such as a powder sintered body, a groove structure, a wire mesh structure, etc.) disposed on the inner wall thereof and an appropriate amount of working liquid (such as water, ethanol, acetone) Etc.) composition. The first figure shows a heat pipe commonly used in computer heat dissipation modules in the prior art. The heat dissipation module uses the phase change action of the working fluid in the heat pipe to quickly transfer the heat of the heat source to the heat dissipation fins, and then uses the fan to The heat on the heat sink fins quickly and efficiently drains the outside of the computer case. The inner wall surface of the heat pipe casing 10 is provided with a capillary structure 20, and the casing 10 is sealed with an appropriate amount of working liquid. The heat pipe comprises three parts of an evaporation section 40, an adiabatic section 50 and a condensation section 60. When the working fluid is heated and vaporized in the evaporation section 40, the vapor fluid can generate a large amount of heat energy due to the latent heat generated by the phase change and the vapor fluid passage 70 along the center of the heat pipe. For high-speed motion, the vapor fluid condenses into a liquid in the condensation section 60 due to the exothermic action, and returns to the heating end 40 through the liquid fluid passage 80 by gravity or the capillary force of the envelope 10, thus continuously circulating. In the above structure, since the capillary structure is disposed along the inner wall surface of the envelope, the steaming form number A0101 is 3/15 pages 1003117152-0 [0005] 1343986 The correction of the replacement page gas fluid flows to the condensation section on April 06, 100 The heat must be transferred to the fins through the heat transfer between the capillary structure and the cooling liquid in the capillary wall, so that the heat transfer resistance of the vapor fluid and the wall of the shell is increased, and the heat release is slowed down, affecting the heat pipe and the heat sink fin. Heat exchange rate such as sheet. The second and third figures show that the vapor liquid and the condensed liquid of the heat pipe are reversely flowed inside the envelope 10. Since the condensed liquid and the vapor liquid contact each other through the gap of the capillary structure 20, an entrainment limit may occur to cause a shearing force, and the condensate is intended to be blocked from the circulating flow of the vapor liquid and generate a transfer of the condensed liquid to the evaporation section. The pre-heating situation leads to a drop in heat transfer efficiency, and this limitation is more severe as the power increases, thereby seriously affecting the heat transfer performance of the conventional heat pipe. [0007] In order to solve the problem of the above-mentioned conventional single heat pipe, the industry has developed a Loop Heat Pipe (LHP) as shown in the fourth figure. The loop type heat pipe also comprises an evaporation section 4〇, an adiabatic section 5〇, and a condensation section 6〇, three parts, an evaporation section 40′ and a condensation section 50, and a capillary structure 2〇, the loop type heat pipe is the most The basic production principle is that the original conventional heat-integrated 蒸汽 steam fluid channel 70 and the liquid fluid channel 80 are expanded in series to be divided into a vapor fluid channel and a liquid fluid channel 80' to be recombined to form a loop-type super A heat conductor, a so-called loop heat pipe, replaces the original conventional single-tube heat pipe. Although the loop heat pipe has superior performance than the conventional heat pipe, it cannot break through the technical bottleneck, for example, the heating center has to be off center, the working fluid is not easy to fill, and the sealing technology is high, which makes the process complicated, high and the condensation section position. The heat sink fins are not easy to fix, and the assembly space is large. 094141521 Form No. A0101 Page 4 / Total 15 Page 1003117152-0 1343986 [0008] ^ [0009] [0011] [0011] 094141521 Correction of the replacement page for April 06, 100 It makes it difficult to use and ultimately leads to mass production. Therefore, if the current mass production manufacturing technology of the heat pipe can be combined with the innovative design of the structure to achieve the performance of a similar loop heat pipe, it not only has mass production but also solves the current high power heat problem and reduces its production cost. It is the goal of the industry to work hard. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a heat pipe in which a vapor fluid exchanges heat with a wall surface of a casing and has high heat conductivity. A heat pipe comprising a sealed metal casing filled with an appropriate amount of working fluid, the casing being provided with a capillary structure extending axially along the center of the casing and having a certain gap with the inner wall of the casing, so that the inside of the casing is formed into a capillary a structural portion and a cavity portion between the capillary structure and the inner wall surface of the envelope. Compared with the prior art, the heat pipe has the following advantages: since the heat pipe capillary structure is disposed at the center of the tube shell, the capillary structure can be pre-manufactured and inserted into the heat pipe, the process is simple, and the cavity portion is formed along the inner wall surface of the tube shell. The vapor fluid flowing therein can directly exchange heat with the wall surface of the shell, and the heat exchange resistance is small, which is favorable for accelerating the conduction of heat. A further improvement of the heat pipe of the present invention is that the heat pipe further comprises at least one vapor-liquid splitting baffle disposed on a surface of the capillary structure facing the cavity portion, which at least separates the capillary structure portion and the cavity portion of the central portion of the heat pipe. The original parallel steam fluid channel and the liquid fluid channel are separated into a vapor fluid channel and a liquid fluid channel by a partition, so that the high temperature steam can be quickly transferred to the condensation section, and the high temperature steam of the adiabatic section is prevented from condensing the return liquid. The reheating effect improves the countercurrent impact phenomenon of the vapor-liquid two phases. In addition, the use of a vapor-liquid splitter plate can reduce the mandrel form number A0101 page 5 / a total of 15 pages 1003117152-0 1343986 _ 100 years on April 06, the positive displacement page and the capillary structure between the diffusion reaction or thermal expansion residual stress problem The mandrel is released from the film and is easily adhered, resulting in an increase in the defect rate. [Embodiment] [0012] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the fifth to eighth embodiments, which are fully understood. [0013] Please refer to the fifth figure, which is a preferred embodiment of the heat pipe of the present invention, which mainly comprises a metal shell 100, a capillary structure 200, a vapor-liquid splitting partition 300 and a proper amount of working fluid filled in the metal shell 100. (not shown). The heat pipe places the capillary structure 200 and the separator 300 in the casing 1 and fills the working fluid, and then evacuates and closes the casing. The capillary structure 200 extends from the end capillary structure 20 0 disposed on the inner wall surface at both ends of the heat pipe shell 1 and the tube shell 1 〇〇 center along the tube shell 1 〇〇 to the end capillary structure 200 The central capillary structure is composed of 2〇〇. The central capillary structure 2〇〇 has a gap with the inner wall surface of the envelope 10 to form a cavity portion, and the central capillary structure 200 is attached with a vapor-liquid splitting partition 3〇() on the surface of the cavity portion. The central capillary structure 200 is designed as a liquid fluid passage 8 〇〇, and the cavity portion around the vapor-liquid split diaphragm 300 is designed as a vapor fluid passage 700. Since the cavity portion is formed along the inner wall surface of the casing, the steam flowing therein can directly exchange heat with the wall surface of the casing 1 , and the heat exchange resistance is small compared with the prior art, which is advantageous for Speed up the conduction of heat. In addition, the central capillary structure can be directly inserted into the package after completion, and the process is simple. The heat pipe also includes an evaporation section 4〇〇, an adiabatic section 5〇〇, and a condensation section 600. The partition plate 300 is disposed on the surface of the central capillary structure 200 corresponding to the heat insulating section 5〇〇 toward the cavity portion, and the purpose thereof is to prevent the two ends of the partition plate 3 from extending to the evaporation section 4〇〇 and the condensation section 6〇〇 The effect is in the evaporation section 4〇() 094141521 Form No. A0101 Page 6 / Total 15 Page 1003117152-0 1343986 —--- Correction of the normal circulation of the vapor and condensed liquids of the replacement page and the condensation section 600 on April 06, 100 flow. [0014] The working principle of the working fluid is: when the heat pipe is painful, the heating section is heated to the internal working fluid of the heat pipe, and the phase change of the working fluid from the liquid state to the vapor state causes a large amount of heat to be carried away from the evaporation section. 40 〇, which is transmitted to the condensing section 6 经由 through the steam fluid passage of the adiabatic section 500, and the area of the adiabatic section 500 is provided with the vapor-liquid splitting partition 300 so that only the simple steam flows in the steam fluid passage 700, and in the condensing section The condensed liquid fluid passage 800 within the capillary structure 200 of 600 is delivered to the evaporation section 400. The shear stress generated by the non-vapor-liquid two-phase countercurrent 'so that' high-temperature steam does not exert a reheating effect on the condensed working fluid, which can effectively improve the absorption and release heat effect of the working fluid' and thus improve Heat pipe performance. [0015] The heat pipe of the present invention is attached to the surface of the capillary structure by using a vapor-liquid splitting baffle to improve the stripping performance of the mandrel, and the mandrel caused by the diffusion reaction or the thermal expansion residual stress between the mandrel and the capillary structure can be reduced. The release film is easy to adhere and causes an increase in the defect rate. [0016] Please refer to the sixth figure for another embodiment of the present invention. The main difference from the fifth figure is that the design of the capillary structure is different, and the evaporation end 4 is extended along the wall surface of the metal shell 100. The capillary structure 2' is connected to the capillary structure 200'. When the heat source acts on the evaporation end 400, the working flow therein can rapidly produce a phase change and rapidly advance along the steam passage 7 to the cooling end 600 in a steam state. After the heat is condensed, the capillary passage is returned to the evaporation end 400 along the liquid passage 8 to complete a cycle. [0017] Please refer to the seventh figure for a further embodiment of the present invention. The main difference from the fifth figure is that the inner wall surface of the metal shell 100 and the vapor-liquid splitting partition 3_ 094141521 form number A0101 page 7 / total 15 pages 1003117152-0 1343986 100 years April _ revise the four reinforcing ribs 31 〇 ' to facilitate the heat pipe bending and flattening process. [0018] Please refer to the eighth figure again for the further embodiment of the present invention, which differs from the fifth figure in that the inside of the metal shell 1 〇 0 is provided with five parallel corrugated capillary structures 200 extending axially along the shell. Each of the capillary structures 200 is provided with a vapor-liquid splitting partition 3〇〇, and the capillary structure 200 forms a liquid passage 800. The remaining cavity portion forms a vapor fluid passage 800 having the function of a multiple loop heat pipe.
[0019] 可以理解地，本發明熱管的汽一液分流隔板的兩端可分 別往蒸發段與冷凝段適當延伸；汽一液分流隔板沿毛細 結構部與空腔部的介面延伸而形成管狀體，其橫截面形 狀可以是圓形、橢圓形、多邊形等多種形狀之殼體；汽 一液分流隔板的厚度可以是薄膜（<1 (m)、厚膜（>l(m) 、薄管或厚管；汽一液分流隔板的形態可以是薄膜狀、 細網格狀。汽一液分流隔板的材料可以是銅、鋁等金屬 或合成樹脂等非金屬材料。 [0020] 還可以理解地，本發明熱管的毛細結構可以是溝槽狀、 網格狀、纖維狀、燒結粉體、多孔連通、波浪狀薄板及 其複合毛細結構。 [0021]是以，本發明之熱管可改善習用之技術關鍵在於； [0022] 1.管殼中心的毛細結構設計：將毛細結構設置於管殼中 心而沿管殼内壁面形成蒸汽流體通道，以提高蒸汽流體 與管殼壁面的換熱效果。 2.汽一液分流隔板的設計：在熱管之絕熱區域介於毛細 結構及蒸汽流體通道間設計一汽一液分流隔板，以避免 094141521 表單編號A0101 第8頁/共15頁 1003117152-0 [0023] 1343986 100年〇4月06日梭:正替換頁 [0024] [0025] 4, [0026] [0027] [0028] [0029] [0030] [0031] [0032] 蒸汽流與冷凝液態的剪力作用。 3. 汽一液分流隔板的設計：在熱管之絕熱區域介於毛細 結構及蒸汽流體通道間設計一汽一液分流隔板，以避免 絕熱段的熱量對於凝結液體再行加熱作用，而影響其冷 凝液的回流效應。 4. 汽一液分流隔板的設計：由於使用汽一液分流隔板貼 設於毛細結構表面上，可降低芯棒與毛細結構間的擴散 反應或熱膨脹殘留應力問題所導致芯棒脫膜易黏著而造 成不良率的增加。 5. 多重管式熱管設計：經由多個汽一液分流隔板的使用 可以設計多重管迴路熱管的設計，有效降低成本增加熱 管效能。 綜上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施例 ，自不能以此限制本案之申請專利範圍。舉凡熟悉本案 技藝之人士援依本發明之精神所作之等效修飾或變化， 皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 第一圖係習知熱管之示意圖。 第二圖係習知熱管之一種汽液兩相逆流作用示意圖。 第三圖係習知熱管之另一種汽液兩相逆流作用示意圖。 第四圖係習知迴路式熱管之示意圖。 第五圖係本發明熱管之一實施例示意圖。 094141521 表單編號A0101 第9頁/共15頁 1003117152-0 1343986 100年04月06日修正替换頁 [0033] 第六圖係本發明熱管之另一實施例示意圖。 [0034] 第七圖係本發明熱管之再一實施例示意圖。 [0035] 第八圖係本發明熱管之又一實施例示意圖。 [0036] 【主要元件符號說明】 金屬管殼：100 [0037] 毛細結構：200、200’ [0038] 汽一液分流隔板：300 [0039] 加強肋：310 [0040] 蒸發段：400 [0041] 絕熱段：500 [0042] 冷凝段：600 [0043] 蒸汽流體通道：700 [0044] 液態流體通道：800 094141521 表單編號A0101 第10頁/共15頁 1003117152-0[0019] It can be understood that both ends of the vapor-liquid splitting baffle of the heat pipe of the present invention can be respectively extended to the evaporation section and the condensation section respectively; the vapor-liquid splitting baffle is formed along the interface of the capillary structure and the cavity part. The tubular body may have a cross-sectional shape of a plurality of shapes such as a circle, an ellipse or a polygon; the thickness of the vapor-liquid splitter may be a film (<1 (m), thick film (>l(m) ), thin tube or thick tube; the form of the vapor-liquid splitting separator may be in the form of a film or a fine mesh. The material of the vapor-liquid splitting separator may be a metal such as copper or aluminum or a non-metallic material such as a synthetic resin. 0020] It is also understood that the capillary structure of the heat pipe of the present invention may be a groove shape, a mesh shape, a fiber shape, a sintered powder body, a porous communication, a corrugated sheet, and a composite capillary structure thereof. The technical key to improve the conventional heat pipe is: [0022] 1. The capillary structure of the center of the shell: the capillary structure is arranged at the center of the shell to form a vapor fluid passage along the inner wall surface of the shell to improve the vapor fluid and the shell wall Heat transfer effect. 2. Steam Design of liquid splitter diaphragm: design a steam-liquid splitter partition between the capillary structure and the vapor fluid passage in the adiabatic zone of the heat pipe to avoid 094141521 Form No. A0101 Page 8 / Total 15 Page 1003117152-0 [0023] 1343986 100 〇 〇 〇 06 : : : : : : : : : : : : : : : : : : : [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ 3. Design of steam-liquid splitter partition: design a steam-liquid splitter partition between the capillary structure and the steam fluid passage in the adiabatic zone of the heat pipe to avoid the heat of the adiabatic section heating the condensed liquid, and affecting it The reflux effect of the condensate 4. The design of the vapor-liquid splitter diaphragm: due to the use of a vapor-liquid splitter baffle attached to the surface of the capillary structure, the problem of diffusion reaction or thermal expansion residual stress between the mandrel and the capillary structure can be reduced. This leads to an increase in the defect rate caused by the release of the mandrel. 5. Multi-tube heat pipe design: The design of multiple pipe loop heat pipes can be designed through multiple steam-liquid splitter plates to effectively reduce the cost and increase the heat pipe efficiency. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the patent application of the present invention cannot be limited thereby. The equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are intended to be included in the scope of the following claims. [Simplified illustration of the drawings] The first figure is a schematic diagram of a conventional heat pipe. Schematic diagram of a vapor-liquid two-phase countercurrent action of a heat pipe. The third figure is a schematic diagram of another vapor-liquid two-phase countercurrent action of a conventional heat pipe. The fourth figure is a schematic diagram of a conventional loop heat pipe. The fifth figure is a schematic view of an embodiment of the heat pipe of the present invention. 094141521 Form No. A0101 Page 9 of 15 1003117152-0 1343986 Correction Replacement Page of April 06, 100 [0033] Figure 6 is a schematic view of another embodiment of the heat pipe of the present invention. [0034] FIG. 7 is a schematic view showing still another embodiment of the heat pipe of the present invention. [0035] The eighth figure is a schematic view of still another embodiment of the heat pipe of the present invention. [Description of main component symbols] Metal case: 100 [0037] Capillary structure: 200, 200' [0038] Vapor-liquid splitter separator: 300 [0039] Reinforcing rib: 310 [0040] Evaporation section: 400 [ 0041] Adiabatic section: 500 [0042] Condensation section: 600 [0043] Vapor fluid channel: 700 [0044] Liquid fluid channel: 800 094141521 Form No. A0101 Page 10 of 15 1003117152-0