200907272 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種熱管，特別係涉及一種溝槽式熱管及 其製造方法。 【先前技術】 現階段，熱管已被廣泛應用於具較大發熱量之電子元 件之散熱。該熱管工作時，利用管體内部填充之低沸點工 作流體在其蒸發段吸收發熱電子元件產生之熱量後蒸發.汽 化，帶著熱量運動至冷凝段，並在冷凝段液化凝結將熱量 釋放出去，該液化後之工作流體在熱管壁部毛細結構之作 用下再回流至蒸發段，通過該工作流體之循環運動，將電 子元件產生之熱量散發出去。 當熱管蒸發段之毛細結構不能提供足夠強大之毛細作 用力時，不能夠及時使冷凝段之工作流體回流至蒸發段， 可能使工作流體過少而燒幹，進而使熱管喪失傳熱性能而 令發熱元件因不能及時散熱而燒毀。以溝槽式熱管 (grooved heat pipe)而言，溝槽之齒形為影響傳熱性能之重 要參數，習知溝槽式熱管之溝槽之齒形于蒸發段至冷凝段 一般是一致的，為改善傳熱性能，後續有相關技術提供熱 管之齒形變化，如溝槽漸進之變化，加強蒸發段之毛細作 用力等。但該等技術使得熱管之製程工藝困難，量產實施 不易，且在將熱管折彎或壓扁以滿足應用之需求時，不可 避免之對毛細結構造成損壞而使其液體輸送能力大幅下 6 200907272 熱"續鮮之謂及熱阻之增加。因此 便之製程工藝，可適於折咖扁應用 、〜、里產性之具有較佳溝槽齒形之熱管。 【發明内容】 產性：ΐ:此’有必要提供一種具有較高熱傳性能且具量 產性之熱官及其製造方法。 于ί括管體、設于管體内之毛細結構及填充 毛二結構包括内Γ體設!蒸發段及冷凝段，該 , b s '壁之稷數微細之溝槽，該蒸發段 二^、於冷滅段之管徑，位於蒸發段之溝槽之槽寬小於 :冷政段之溝槽之槽寬，該毛細結構還包括貼設于管體 隙土^至少—脈管，所述脈管之管壁上形成複數細小孔 隙，脈管之一側與溝槽相接觸。 複數之製造方法，包括如下步驟：提供内壁設有 以—管體;利用-縮管模縮小管體部分區域 作為該熱管之蒸發段；在縮管後之管體内置入至少 氏吕’抽真空亚填充適量工作流體至管體内；密封該管 體’传到所需之熱管。 與習知_相比’該熱管之蒸發段之溝槽具有較小之 二見，使⑪發段具有更強之毛細作用力，該脈管可進一 &之毛細作用力及增加流體輸送能力，並且在 彎成型過財因不易受到損壞而能保持原有之功 此’ k而使该熱官具有良好之傳熱性能，其製造方法使得 200907272 該熱管借助於簡單之機械加工方式即可實現上述功效，因 ' 此便於量產實施。 【實施方式】 下面參照附圖，結合實施例作進一步說明。 圖1至圖3所示為本發明熱管10之一較佳實施例，該 熱管10包括一管體11、設于管體11内之毛細結構14以及 填充于該管體11内之適量工作流體（圖未示）。 該管體11為一由銅、鋁等具良好導熱性之材料製成之 封閉狀之中空金屬管，該管體11之橫截面為圓環，其厚度 T沿管體11之軸向保持不變。該管體11沿軸向包括分別位 於管體11兩端之蒸發段15與冷凝段16，及連接于蒸發段 15與冷凝段16之間之絕熱段17。該蒸發段15之管徑（内 徑與外徑）小於該冷凝段16之管徑。該絕熱段17靠近冷 凝段16部分之管徑與冷凝段16相同，靠近蒸發段15之部 分管徑朝向蒸發段15方向逐漸縮小，形成錐形之連接部 171。 該工作流體為水、酒精、曱醇等具較低沸點之物質， 且管體Π内被抽成真空，使該工作流體易於由管體11之 蒸發段15處吸熱蒸發，蒸汽帶著熱量向冷凝段16移動， 在冷凝段16放熱後凝結成液體，將熱量釋放出去，冷凝後 之液體經由毛細結構14又回流至蒸發段15進行下一次吸 熱-放熱循環，從而完成對發熱元件持續有效地散熱。 該毛細結構14包括沿管體11内壁軸向延伸之複數微 200907272 細之溝槽142、143及一與溝槽142、143相貼設之脈管145, 其中溝槽143位於熱管1〇之蒸發段15,溝槽142位於熱管 10之冷凝段16，所述溝槽142、143具有相同之槽深η， 但溝槽143之齒頂角Al(groove apex angle)大於溝槽142之 齒頂角A2，溝槽143之齒頂寬度W1及齒根寬度W2分別 小於溝槽142之齒頂寬度W3及齒根寬度W4，也就是說， 位於蒸發段15之溝槽143之槽寬小於位於冷凝段16之溝 槽142之槽寬。該脈管145為由複數銅絲、鋁線、不銹鋼 絲或纖維束等材料製成之絲線編織後形成之可繞性 (flexible)之管體結構，管壁1451上形成有複數細小之孔 隙’内部形成一中心通道1452，該管壁1451上之孔隙與中 心通道1452相互連通。該脈管145之形狀為圓形並沿其軸 向延伸，從熱管10之冷凝段16延伸至蒸發段15，脈管145 對應于絕熱段17之連接部171之位置順沿管體11彎折， 使得管壁1451可分別與管體11之蒸發段15與冷凝段16 貼合’該管壁1451之厚度沿軸向保持不變。該中心通道 1452之直徑可從〇.5mm擴展至數毫米以上，其最大值可依 不同之工作流體作適當調整，以純水為工作流體為例，該 中心通道1452之直徑之較佳範圍為〇.5mm至2mm之間， 使得脈管145對工作流體輸送之方向具有單一性，即可將 冷凝段16放熱冷凝後形成之液態純水直接輸送至蒸發段 工5 ’而在蒸發段15吸熱蒸發汽化之蒸汽則從脈管145與管 體11之間之通道擴散至冷凝段16 ’從而避免脈管145之中 心通道1452内汽液混合而影響其對流體之輸送功能。該脈 9 200907272 管145之外控遠小於管體11内孔之直徑，管壁1451沿軸 向與管體11内壁之溝槽142、143相貼合，管壁i6l上之 孔隙與溝槽142、143相連通，脈管145與溝槽142、143 共同形成複合式之毛細結構14。脈管145之頂側遠離溝槽 142、143之頂端，因此’該脈管145之管壁1451除與溝槽 142、143相貼合之底侧部分之外，其餘部分則暴露于管體 11之内孔内，增大毛細結構14與工作流體之接觸面積。 該熱管10可以由以下步驟製得：提供内壁設有複數微 細溝槽142之一直徑大小均勻之管體η，此時，溝槽142 軸向延伸並均勻設置于管體11之整個内壁面上，所述溝槽 142沿軸向具有同樣之大小和形狀；縮小管體11作為蒸發 段15部分之管徑，此時，對應蒸發段15部分之溝槽由於 管徑減小而形成為具有較小槽寬之溝槽143,靠近蒸發段 15部分形成槽寬過渡變化之連接部17ι，而其餘部分溝槽 142槽寬不變；提供一呈直線狀之脈管145，將該脈管145 置於管體11内並使之沿管體11軸向延伸，然後進行高溫 燒結’以將脈管145固定並使之變形而與管體11相貼合； 抽真工及在官體U内填充適量工作流體；密封，得到所需 熱官10 °其中’該管體11内壁之溝槽142可通過沿管體 11轴向在内壁插制形成；該脈管145採用線徑約0.05mm 之純銅絲線編織形成，其壁部1451之厚度約為0.2mm，中 心通運1452之直徨約為1mm，該脈管145置入管體11後， 利用雨溫使脈管145與管體η產生鍵合作用，從而使兩者 固疋連結為一體’且該過程中脈管145對應于熱管10連接 200907272 ° 讀變形，從岐㈣分卵管體r〗 相貼合；縮小管體n之蒸發段15部分 之兩端 旋轉縮管法或旋轉衝擊縮管法完成。 从採用高逮 如圖4及圖5所示，該高速旋轉縮管 驟主要通過一古、έ , 進仃為§ f之步 外晋逋過冋速旋轉縮管模跗來 一 ㈣為-中空之管狀體，沿軸向包括—導;; 部22及一細管部23。該導 漸鈿 徑相等，該漸縮部22從導引部21之^^^6之外 其内徑與所需形成之連接部m 〇 I缩形成， 23之内徑盥所役相對應，該細管部 κ工〃、所而形成之蒸發段15之外 程令，首先用-固定工具5〇將管體u工定至— 在:官之過 ^驅動旋轉縮管模2Q高速運轉並砂管 -11之-端逐漸向另一端運動至—定長 向由官 導引旋轉縮管模2〇逐漸向前運動，;導引。Μ 部22與待縮管部分之管體η相_，使=ν20之漸縮 縮小，分別形成錐形之_#171 ^心刀管徑逐漸 如圖6及圖7张_^較小之蒸發段〜 驟主要通過-旋轉衝擊縮管模3 1和德官之步 ㈣包括至少兩個分模31，每—分ς成31，=轉衝擊縮管 表面32 ’沿軸向包括-導引部34、—漸"35—:弧形？ 部36。當兮笠八松。 斩擴4 35及一細管 田》亥專刀模31組合時，其圓 句分佈於—特定之圓周面3 1内表面32可均 形成之圓周面盥所兩㈣m 管部％對應 漸擴部35之=段/5之外表面相對應，該 “M6之1向外漸擴形成，其對應形成 11 200907272 之圓周面與所需形成之連接部171之外表面相對應，該導 引部34位於漸擴部35開口較大之一端，其形成之圓周面 與冷凝段16之外表面相對應。在縮管之過程中，首先用固 定工具50將管體11固定至工作台40上；驅動衝擊縮管模 30之各分模31高速旋轉並逐漸沿管體11徑向向管體11逐 漸靠近，並使漸擴部35及細管部36與待縮管部分之管體 11相衝擊，以形成所需熱管10之蒸發段15及連接部171。 另外，為製得長度足夠長之蒸發段15，在衝擊縮管模30 沿管體11之徑向運動的同時，還可一併驅動衝擊縮管模30 沿管體11之轴向運動。可以理解地，利用旋轉衝擊縮管法 可對位於管體11中間之任何區域進行縮管，例如對於 “U”型熱管，可將管徑較小之蒸發段設置于熱管中間區 域，而管體之兩端均形成冷凝段，以適用各種應用之需要。 該熱管10之製作方法通過縮小管體11之蒸發段15管 徑之步驟，使獲得之熱管10之蒸發段15之内部溝槽143 之槽寬變窄及齒頂角增大，因此，相較於一般具均一溝槽 尺寸之熱管而言，該熱管10之蒸發段15内有較小之溝槽 尺寸，提高了熱管10之蒸發段15之毛細作用力並降低了 熱阻值，進而提升整體熱管10之毛細輸送能力（capillary force)及所相對之最大毛細傳熱限制。該熱管10借助於簡 單之機械加工方式即可實現上述功效，因此便於量產實 施。且熱管10内利用脈管145壁部1451形成具有細小之 孔隙之多孔結構，產生毛細作用力吸附冷凝後之工作流 體，並通過脈管145内較小之中心通道1452直接輸送至蒸 12 200907272 發段15，避免冷凝後之工作流體因重力作用容易聚積于冷 凝段16而導致熱阻增加，進而增強了工作流體在管體11 内之循環，補足原熱管10之毛細作用力及流體輸送能力， 增強熱管10之蒸發段15與冷凝段16之間之熱交換。且脈 管145具可繞性，在高溫製程中沿其延伸之方向僅—側與 管體11相接觸，該脈管145在熱管10壓扁或折彎成型後 仍能保有其習知功能，整體提升該熱管10之傳熱性能。 熱管10内也可以同時設置多個脈管145，所述脈管145 可在管體11内間隔排列或者相互貼合，分別如圖8及圖9 所示’該多個脈管145可進一步補足熱管10之毛細作用力 及流體輸送能力，避免冷凝後之工作流體因重力作用容易 聚積于冷凝段16而導致熱阻增加，且在熱管10折彎形成 為“L”型或“U”型或其他彎折形狀，或者在熱管1〇縮管 完成並打扁操作之後，該脈管145而仍能保持習知功处 從而整體提升該熱管10之傳熱性能。 、.示上戶/f通，4、H…口奴—％寻：fg <晋1午，^ 專利申請。惟以上所述者僅為本發明之較佳實施例，^出 熟悉本案技藝之人士，在爰依本發明精神所作之等灰凡 或變化，皆應涵蓋於以下之申請專利範圍内。、j修饵 【圖式簡單說明】 圖1為本發明熱管一較佳實施方式之示意圖 圖2為圖1所示熱管沿π - ϋ線之剖視圖。 圖3為圖1所示熱管沿冚-冚線之剖視圖。 13 200907272 圖4為高速旋轉縮管法之示意圖。 圖5為圖4沿V -V線之剖視圖。 圖6為旋轉衝擊縮管法之示意圖。 圖7為圖6沿W-W線之剖視圖。 圖8為本發明熱管另一較佳實施方式于冷凝段之徑向 剖示圖。 圖9為本發明熱管又一較佳實施方式于冷凝段之徑向 剖示圖。 【主要元件符號說明】 数管 /、、、 μϊ 10 管體 11 毛細結構 14 溝槽 142 、 143 脈管 145 管璧 1451 中心通道 1452 蒸發段 15 冷凝段 16 絕熱段 17 連接部 171 槽深 Η 齒頂角 Al、Α2 齒頂寬度 Wl ' W3 齒根寬度 W2、W4 高速旋轉縮管模 20 導引部 21 漸縮部 22 細管部 23 旋轉衝擊縮管模 30 分模 31 内表面 32 圓周面 33 導引部 34 漸擴部 35 細管部 36 工作台 40 固定工具 50 14200907272 IX. INSTRUCTIONS: [Technical Field] The present invention relates to a heat pipe, and more particularly to a grooved heat pipe and a method of manufacturing the same. [Prior Art] At this stage, heat pipes have been widely used for heat dissipation of electronic components with large heat generation. When the heat pipe works, the low-boiling working fluid filled inside the pipe body absorbs the heat generated by the heat-generating electronic component in the evaporation section, evaporates, vaporizes, moves with heat to the condensation section, and liquefies and condenses in the condensation section to release the heat. The liquefied working fluid is recirculated to the evaporation section under the action of the capillary structure of the heat pipe wall, and the heat generated by the electronic component is dissipated by the circulating motion of the working fluid. When the capillary structure of the evaporation section of the heat pipe cannot provide sufficient capillary force, the working fluid of the condensation section cannot be returned to the evaporation section in time, and the working fluid may be too small to be dried, thereby causing the heat pipe to lose heat transfer performance and cause heat generation. The component burned out due to the inability to dissipate heat in time. In the case of a grooved heat pipe, the tooth profile of the groove is an important parameter affecting the heat transfer performance. It is known that the groove shape of the groove of the grooved heat pipe is generally uniform from the evaporation section to the condensation section. In order to improve the heat transfer performance, the related technology provides the tooth shape change of the heat pipe, such as the progressive change of the groove, and the capillary force of the evaporation section. However, these technologies make the process of the heat pipe difficult, and the mass production is difficult to implement. When the heat pipe is bent or flattened to meet the application requirements, the capillary structure is inevitably damaged and the liquid transport capacity is greatly reduced. 6 200907272 Hot " Continuation and the increase in thermal resistance. Therefore, the process technology can be suitable for the application of the flat coffee, and the heat pipe having the better groove shape. SUMMARY OF THE INVENTION Productivity: ΐ: This is necessary to provide a heat officer having high heat transfer performance and mass production and a method of manufacturing the same. The capillary structure, the capillary structure and the filling hair structure disposed in the tube body include an inner body; an evaporation section and a condensation section, and the bs 'wall has a fine number of grooves, and the evaporation section is 2, In the tube diameter of the cold-extinguishing section, the groove width of the groove located in the evaporation section is smaller than: the groove width of the groove of the cold-political section, and the capillary structure further includes a tube attached to the body gap of the tube, at least the vessel, the vein A plurality of small pores are formed on the wall of the tube, and one side of the vessel is in contact with the groove. The manufacturing method of the plural includes the steps of: providing an inner wall with a tube body; using a shrink tube mold to reduce a portion of the tube body as an evaporation portion of the heat tube; and after the tube is contracted, at least a vacuum is built in the tube body Sub-fill a proper amount of working fluid into the tube; seal the tube' to the desired heat pipe. Compared with the conventional _, the groove of the evaporation section of the heat pipe has a small difference, so that the 11-segment section has a stronger capillary force, and the vascular can enter a capillary force and increase the fluid transport capability. Moreover, in the bending forming, the financial property is not easily damaged, and the original work can be maintained, so that the heat officer has good heat transfer performance, and the manufacturing method thereof enables the heat pipe of 200907272 to realize the above by means of simple machining. Efficacy, because 'this is easy to implement in mass production. [Embodiment] Hereinafter, the embodiments will be further described with reference to the accompanying drawings. 1 to 3 show a preferred embodiment of the heat pipe 10 of the present invention. The heat pipe 10 includes a pipe body 11, a capillary structure 14 disposed in the pipe body 11, and an appropriate amount of working fluid filled in the pipe body 11. (not shown). The tube body 11 is a closed hollow metal tube made of a material having good thermal conductivity such as copper or aluminum. The tube body 11 has a circular cross section, and the thickness T thereof is maintained along the axial direction of the tube body 11. change. The pipe body 11 includes, in the axial direction, an evaporation section 15 and a condensation section 16 which are respectively located at both ends of the pipe body 11, and an adiabatic section 17 which is connected between the evaporation section 15 and the condensation section 16. The diameter (inner diameter and outer diameter) of the evaporation section 15 is smaller than the diameter of the condensation section 16. The diameter of the portion of the adiabatic section 17 near the condensing section 16 is the same as that of the condensing section 16, and the portion of the tube near the evaporation section 15 is gradually narrowed toward the evaporation section 15 to form a tapered connecting portion 171. The working fluid is a substance having a lower boiling point such as water, alcohol or sterol, and the inside of the tube body is evacuated, so that the working fluid is easily evaporated by the heat transfer portion 15 of the tube body 11, and the steam carries heat. The condensing section 16 moves, condenses into a liquid after the condensing section 16 releases heat, releases the heat, and the condensed liquid is returned to the evaporation section 15 via the capillary structure 14 for the next endothermic-exothermic cycle, thereby completing the effective operation of the heating element. Cooling. The capillary structure 14 includes a plurality of micro-200907272 fine grooves 142, 143 extending along the inner wall of the pipe body 11 and a vessel 145 attached to the grooves 142, 143, wherein the groove 143 is located at the evaporation of the heat pipe 1 Section 15, the groove 142 is located in the condensation section 16 of the heat pipe 10, the grooves 142, 143 have the same groove depth η, but the groove 143 has a apex angle A1 larger than the apex angle of the groove 142 A2, the tip width W1 and the root width W2 of the groove 143 are respectively smaller than the tip width W3 and the root width W4 of the groove 142, that is, the groove width of the groove 143 located in the evaporation section 15 is smaller than that in the condensation section. The groove width of the groove 142 of 16. The vessel 145 is a flexible tubular structure formed by braiding a wire made of a plurality of materials such as copper wire, aluminum wire, stainless steel wire or fiber bundle, and a plurality of small pores are formed on the pipe wall 1451. A central passage 1452 is formed in the interior, and the pores on the wall 1451 communicate with the central passage 1452. The vessel 145 is circular in shape and extends in the axial direction thereof, extending from the condensation section 16 of the heat pipe 10 to the evaporation section 15, and the vessel 145 is bent along the pipe body 11 corresponding to the position of the connection portion 171 of the heat insulation section 17. The tube wall 1451 can be respectively engaged with the evaporation section 15 of the tube body 11 and the condensation section 16 'the thickness of the tube wall 1451 is kept constant in the axial direction. The diameter of the central passage 1452 can be extended from 〇.5mm to several millimeters or more, and the maximum value can be appropriately adjusted according to different working fluids. Taking pure water as the working fluid, the preferred range of the diameter of the central passage 1452 is Between 5mm and 2mm, the direction of transport of the working fluid to the vessel 145 is uniform, that is, the liquid pure water formed by the condensation condensation of the condensation section 16 can be directly transported to the evaporation section 5' and absorbs heat in the evaporation section 15. The vaporized vapor is diffused from the passage between the vessel 145 and the tubular body 11 to the condensation section 16' to avoid vapor-liquid mixing in the central passage 1452 of the vessel 145 to affect its function of transporting the fluid. The pulse 9 200907272 is externally controlled to be smaller than the diameter of the inner hole of the pipe body 11. The pipe wall 1451 is axially fitted to the grooves 142 and 143 of the inner wall of the pipe body 11, and the hole and the groove 142 on the pipe wall i6l. The 143 is connected to each other, and the vessel 145 and the grooves 142, 143 together form a composite capillary structure 14. The top side of the vessel 145 is away from the top end of the grooves 142, 143, so that the tube wall 1451 of the vessel 145 is exposed to the tube body 11 except for the bottom side portion which is in contact with the grooves 142, 143. Within the inner bore, the contact area of the capillary structure 14 with the working fluid is increased. The heat pipe 10 can be obtained by providing a pipe body η having a uniform diameter of one of the plurality of fine grooves 142 on the inner wall. At this time, the groove 142 is axially extended and uniformly disposed on the entire inner wall surface of the pipe body 11. The groove 142 has the same size and shape in the axial direction; the pipe body 11 is reduced as the pipe diameter of the portion of the evaporation section 15, and at this time, the groove corresponding to the portion of the evaporation section 15 is formed to have a smaller diameter due to the reduction of the pipe diameter. a small groove width groove 143, a portion of the evaporation section 15 is formed to form a groove width transition connecting portion 17ι, and the remaining portion of the groove 142 has a groove width constant; a linear vessel 145 is provided, and the vessel 145 is disposed In the tube body 11 and extending along the axial direction of the tube body 11, and then performing high temperature sintering 'to fix and deform the vessel 145 to conform to the tube body 11; pumping and filling in the body U Appropriate amount of working fluid; sealed to obtain the desired heat 10 ° where the groove 142 of the inner wall of the pipe body 11 can be inserted through the inner wall along the axial direction of the pipe body 11; the vessel 145 is made of pure copper having a wire diameter of about 0.05 mm. The wire is woven, and the thickness of the wall portion 1451 is about 0.2 mm. The diameter of 1452 is about 1 mm. After the vessel 145 is placed in the tube body 11, the valve 145 is used to bond with the tube body η by using the rain temperature, so that the two are firmly integrated into one body and the vessel is in the process. 145 corresponds to the heat pipe 10 connected to 200,907,272 ° read deformation, from the 岐 (four) ovulation body r 〗 〖 ; ; 缩小 缩小 缩小 缩小 缩小 缩小 缩小 之 之 15 15 15 15 15 15 15 15 15 15 15 。 。 。 。 。 。 。 。 。 。 。 。 。 。 As shown in Fig. 4 and Fig. 5, the high-speed rotary shrinking tube is mainly passed through an ancient, sturdy, entangled § f step outside the 冋 旋转 旋转 旋转 旋转 旋转 旋转 一 一 中空 中空 中空 中空The tubular body includes a guide portion in the axial direction and a thin tube portion 23. The tapered portion 22 is equal to the diameter of the tapered portion 22, and the inner diameter of the tapered portion 22 is formed by the inner diameter of the connecting portion m 〇I. The thin tube part κ 〃 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The end of the tube -11 is gradually moved to the other end to - the fixed length is gradually guided forward by the rotation guide tube 2, and guided; The 22 portion 22 and the tube body η phase _ of the tube to be constricted, so that the = ν20 is tapered and reduced, respectively forming a cone _#171 ^ core tube diameter gradually as shown in Figure 6 and Figure 7 _ ^ smaller evaporation The segment ~ step mainly passes through - the rotary impact shrinkage die 3 1 and the German official step (4) includes at least two partial molds 31, each of which is divided into 31, and the = deflecting shrinkage tube surface 32' includes the guide portion along the axial direction. 34, - Gradually "35-: Arc? Part 36. When you are eight. When 斩 4 4 35 and a thin tube 》 亥 专 专 专 亥 组合 组合 组合 组合 组合 组合 组合 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥 亥The outer surface of the segment=5 corresponds to the surface, and the “M6-1 is formed outwardly, and the circumferential surface corresponding to the formation 11200907272 corresponds to the outer surface of the connection portion 171 to be formed, and the guiding portion 34 is located in the divergence. One end of the opening 35 is larger, and the circumferential surface formed thereof corresponds to the outer surface of the condensation section 16. In the process of shrinking the tube, the tube body 11 is first fixed to the table 40 by the fixing tool 50; Each of the partial molds 31 of 30 rotates at a high speed and gradually gradually approaches the tubular body 11 along the radial direction of the tubular body 11, and causes the dilating portion 35 and the narrow tubular portion 36 to collide with the tubular body 11 of the portion to be contracted to form a desired heat pipe. The evaporation section 15 of the 10 and the connecting portion 171. In addition, in order to obtain the evaporation section 15 having a sufficiently long length, the impact shrinkage tube mold 30 can be driven along the radial direction of the tube body 11, and the impact shrinkage tube mold 30 can be driven together. Movement along the axial direction of the tubular body 11. It is understood that the rotary impact shrinkage method can be used for alignment Any area in the middle of the pipe body 11 is contracted. For example, for a "U" type heat pipe, an evaporation section with a smaller diameter can be disposed in the middle portion of the heat pipe, and a condensation section is formed at both ends of the pipe body to be suitable for various applications. The method for manufacturing the heat pipe 10 is to narrow the groove width of the inner groove 143 of the evaporation section 15 of the heat pipe 10 obtained by the step of reducing the diameter of the evaporation section 15 of the pipe body 11, and the cusp angle is increased. Compared with a heat pipe having a uniform groove size, the evaporation section 15 of the heat pipe 10 has a smaller groove size, which improves the capillary force of the evaporation section 15 of the heat pipe 10 and lowers the thermal resistance value. The capillary force of the overall heat pipe 10 and the maximum capillary heat transfer limit are increased. The heat pipe 10 can achieve the above-mentioned effects by means of simple machining, so that mass production is facilitated and the heat pipe 10 utilizes veins. The wall portion 1451 of the tube 145 forms a porous structure having fine pores, and generates a capillary force to adsorb the condensed working fluid, and directly transports it to the steam through the smaller central passage 1452 in the vessel 145. 72, the section 15 prevents the working fluid after condensation from accumulating in the condensation section 16 due to gravity, thereby increasing the thermal resistance, thereby enhancing the circulation of the working fluid in the tube body 11, and supplementing the capillary force and fluid transport of the original heat pipe 10. The ability to enhance the heat exchange between the evaporation section 15 of the heat pipe 10 and the condensation section 16. The vessel 145 is releasable, and in the high temperature process, only the side is in contact with the tube body 11 in the direction in which it extends, the vessel 145 After the heat pipe 10 is flattened or bent, the conventional function can be maintained, and the heat transfer performance of the heat pipe 10 is improved as a whole. A plurality of vessels 145 can also be disposed in the heat pipe 10 at the same time, and the vessel 145 can be in the tube. The body 11 is arranged at intervals or adhered to each other, as shown in FIG. 8 and FIG. 9 respectively. The plurality of vessels 145 can further complement the capillary force and fluid transport capability of the heat pipe 10, thereby preventing the working fluid after condensation from being easily affected by gravity. Accumulation in the condensation section 16 causes an increase in thermal resistance, and the heat pipe 10 is bent into an "L" type or "U" shape or other bent shape, or after the heat pipe 1 collapses the tube and is flattened, the pulse Tube 145 and still maintain Thereby enhancing the overall power of the heat pipe 10 of the heat transfer performance. , showing the household / f pass, 4, H ... mouth slave -% seeking: fg < Jin 1 afternoon, ^ patent application. The above is only the preferred embodiment of the present invention, and those skilled in the art, which are in the spirit of the present invention, should be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a heat pipe according to a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view of the heat pipe of FIG. 1 taken along a π-ϋ line. Figure 3 is a cross-sectional view of the heat pipe of Figure 1 taken along the 冚-冚 line. 13 200907272 Figure 4 is a schematic diagram of the high speed rotary shrinkage method. Figure 5 is a cross-sectional view taken along line V - V of Figure 4; Figure 6 is a schematic view of the rotary impact shrinkage tube method. Figure 7 is a cross-sectional view taken along line W-W of Figure 6. Figure 8 is a radial cross-sectional view of another preferred embodiment of the heat pipe of the present invention in a condensation section. Figure 9 is a radial cross-sectional view of another preferred embodiment of the heat pipe of the present invention in a condensation section. [Main component symbol description] Tube/,,, μϊ 10 Tube body 11 Capillary structure 14 Groove 142, 143 Vessel 145 Tube 璧 1451 Center channel 1452 Evaporation section 15 Condensation section 16 Insulation section 17 Connection part 171 Groove depth Η Teeth Corner angles Al, Α2 Tip width Wl ' W3 Root width W2, W4 High speed rotation shrinkage mold 20 Guide portion 21 Tapered portion 22 Thin tube portion 23 Rotary impact shrinkage tube mold 30 Part 31 Inner surface 32 Circumferential surface 33 Leading portion 34 gradually expanding portion 35 thin tube portion 36 table 40 fixing tool 50 14