1339256 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毁。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 降’最終導致熱管最大傳熱量之下降及熱阻之增加。因此 諸供-種具有簡便之製裎I藝，可適於㈣或壓扁應用 吳求’亚具量產性之具純佳溝槽細彡之熱管。 【發明内容】 有.此，有必要提供—種具有較高熱傳性能且具量 產性之熱管及其製造方法。 ▲:種熱管’包括管體、設于管體内之毛細結構及填充 于该官體狀JL作流H，奸體設有蒸發段及冷凝段，該 仏結構包括針管體㈣之複數微細之溝槽，該蒸發段 ，管徑小於冷赌之純，位”發段之溝狀槽寬小於 位於冷碰之心fn耗細結料包括麟于管體 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。 二種，之製造方法’包括如下步驟：提供内壁設有 =數=溝槽之—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 抽真空並填充適量工作流體至管體内；密封該管 體’付到所需之熱管。 術相比’該熱管之蒸發段之溝槽具有較小之 ==洛發段具有更強之毛細作用力，該脈管可進一 管之毛細作用力及增加流體輸送能力，並且在 型過程中因不易受到損壞而能保持原有之功 月匕 使该熱管具有良好之傳熱性能，其製造方法使得 1339256 忒熱官借助於簡單之機械加工方式 此便於量產實施。 h現上柄效，因 【實施方式】 下面參照附圖，結合實施例作進—步說明。 圖1至圖3所示為本發明熱管1()之— 熱管10包括—管體U、設于管體u内之 & 5亥 填充=管體u内之適量工作流體(圖未示厂構14以及1339256 IX. Description of the Invention: [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 is in operation, 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 and 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 heat pipe process process difficult, mass production implementation is not easy, and when the heat pipe is bent or flattened to meet the needs of the application, the capillary structure is inevitably damaged and the liquid transport capacity is greatly reduced. This results in a decrease in the maximum heat transfer of the heat pipe and an increase in the thermal resistance. Therefore, the various types of materials can be adapted to the (4) or flattening application. The heat pipe with pure groove and fineness is produced. SUMMARY OF THE INVENTION There is a need to provide a heat pipe having high heat transfer performance and mass production and a method of manufacturing the same. ▲: The heat pipe 'includes the pipe body, the capillary structure disposed in the pipe body, and the JL flow H filled in the official body. The corpus body is provided with an evaporation section and a condensation section, and the raft structure includes a plurality of fine needles of the needle body (4) The groove, the evaporation section, the diameter of the tube is less than that of the cold bet, and the groove width of the bit "segment" is smaller than the center of the cold touch fn, and the fine material is less than the tube body - the vessel A plurality of small pores are formed on the tube wall, and one side of the vessel is in contact with the groove. The two manufacturing methods include the following steps: providing the inner wall with the number = groove - the tube body; using the shrink tube die to reduce The tube body portion is used as the evaporation section of the heat pipe; the pipe body after the pipe shrinking is built in at least vacuumed and filled with an appropriate amount of working fluid into the pipe body; the pipe body is sealed to be paid to the required heat pipe. The groove of the evaporation section of the heat pipe has a smaller == Luofa section has a stronger capillary force, the vessel can enter the capillary force of a tube and increase the fluid transport capacity, and is not easily damaged during the type process. Can maintain the original power of the month, so that the heat pipe has good heat transfer The performance, the manufacturing method thereof makes the 1339256 忒 官 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于 借助于As shown in FIG. 3, the heat pipe 1 of the present invention includes a pipe body U, an appropriate amount of working fluid disposed in the pipe body u, and a pipe body u (not shown) as well as
該管體11為-由銅、料具良好導熱性之材料 ^閉狀之中空金屬管，該管體u之橫戴 ; 二=之轴向保持不變，管體u沿轴向包括 於g體11兩端之蒸發段15與冷凝段16，及連接于基發段 =冷凝段16 K絕熱段17。科發段15之管徑（内 小於該冷凝段16之管徑。該賴段η靠近冷 =16部分之f徑與冷凝段16相同靠近蒸發段15之部The tube body 11 is a hollow metal tube with a good thermal conductivity of copper and material, and the tube body u is transversely worn; the axial direction of the tube is kept unchanged, and the tube body u is axially included in the g The evaporation section 15 and the condensation section 16 at both ends of the body 11 are connected to the basement section = the condensation section 16 K adiabatic section 17. The diameter of the section of Kefa 15 (the inner diameter is smaller than the diameter of the condensation section 16. The diameter of the section η near the cold = 16 is the same as the section of the condensation section 16 near the evaporation section 15
刀官役朝向蒸發段15方向m卜，形成轉之連接部 171。 —該工作流體為水、酒精、甲醇等具較低沸點之物質， ί官體11内被抽成真i使該工作流體易於由管體u之 ϋ又15處吸熱*發’蒸汽帶著熱量向冷凝段w移動， 冷凝& 16放紐凝結錢體，將釋放出去 ，冷凝後 ，液體經由毛細結構14又回流至蒸發段Μ進行下一次吸 .、，放熱循環，從而完成對發熱科持續有效地散熱。 X毛、’田，纟°構14包括沿管體11内壁軸向延伸之複數微 8 1339256 細之溝槽l42、143及一與溝槽142、143相貼設之脈管145’ 其中溝槽143位於熱管10之蒸發段15,溝槽142位於熱管 10之冷凝段16，所述溝槽[42、143具有相同之槽深Η， 仁溝槽143之齒頂角Ai(groove apex angie)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， 位於洛發段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4形成—中心通道1452,該管壁1451上之孔隙與中 〜通逼1452相互連通。該脈管145之形狀為圓形並沿其軸 向延伸’攸熱官10之冷凝段16延伸至蒸發段15,脈管145 對應于熱段17之連接部之位置順沿管體11彎折， 使^壁1451可分別與管體11之蒸發段15與冷凝段16 、占。。玄s壁1451之厚度沿軸向保持不變。該中心通道 52之直彳k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，以純水為卫作流體為例，該 C 452之直徑之較佳範圍為〇 至2mm之間， 使知脈g 145對工作流體輸送之方向具有單一性，即可將 、是^又16放熱冷凝後形成之液態純水直接輸送至蒸發段 —而在洛發段15吸熱蒸發汽化之蒸汽則從脈管145與管 — 之I道擴散至冷滅段16 ’從而避免脈管145之中 心通道14S9 Λ、* . 門Ά液混合而影響其對流體之輸送功能。該脈 1339256 管145之外徑遠小於管體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161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相貼合之底側部分之外，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11，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n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171，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g體11内並使之沿管體n軸向延伸，然後進行高溫 k、’.D，以將脈管145固定並使之變形而與管體11相貼合； 抽，空及在管體η内填充適量工作流體；密封，得到所需 、S 10。其中，該管體11内壁之溝槽142可通過沿管體 軸向在内壁抽制形成；該脈管145採用線徑約〇.〇5mm ^純銅絲線編織形成，其壁部1451之厚度約為 0.2mm，中 L道1452之直徑約為1mm’該脈管145置入管體11後， 使脈營145與管體u產生鍵合作用，從而使兩者 連、、。為體，且該過程中脈管145對應于熱管連接 10 1339256 部m之部位幫折變形，從而使兩 其卿 相貼合：縮小管體u之孓私iR 一 g肢11之兩端 旋轉縮管法或旋轉衝擊縮管部分管徑可以採用高速 取如圖4及圖5所示，該高速旋轉縮管法進行縮牛 驟主要通過-高速旋轉縮管模’ s 乂 模⑽為-中空之管狀體，沿.二成導;=魏縮管 部22及一細管部23。該導引部21^/^=、1:= 徑相等，該漸縮部22從導 卜 其内徑與所需形成之連接部m之外= 23之内徑與所需形成 〜”細官部 程t，首先用一 ^〜^又15之外^相等。在縮管之過 疋工具50將管體u固 上；驅動旋轉縮管模^速 體η之-端逐漸㈣_ = 1G之轴向由官 導引斿鲑給总π。 疋長度，該導引部21 導引㈣& 4 2〇逐漸向前運動 部22與待縮管部分之 “拉2G之漸縮 縮小，分別形成錐形之^ ’使該部分管徑逐漸 如圖6 el 衫_、之蒸發段… 驟主要^ 所示’ 法進行縮管之步 驟主要通過—旋轉 模3〇包括至少兩個分模31 一^;成’该旋轉衝擊縮管 表面32，沿細母刀杈31具有一圓弧形内 部36。當該°等二二一導引广34、-漸擴部35及-細管 勾分佈於一特定刀之時，其圓弧形之内表面32可均 形成之圓周面 ] 上，其中，該細管部30對應 漸擴部35從形成之蒸發段15之外表面相對應，該 '”田以36之-端向外漸擴形成，其對應形成 11 1339256 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之軸向運動。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 1339256 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一側與 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Π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10縮管 完成並打扁操作之後，該脈管145而仍能保持習知功能， 從而整體提升該熱管10之傳熱性能。 綜上所述，本發明符合發明專利之要件，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，在爰依本發明精神所作之等效修飾 或變化，皆應涵蓋於以下之申請專利範圍内。 【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 - Π線之剖視圖。 圖3為圖1所示熱管沿ΙΠ - ΠΙ線之剖視圖。 13 1339256 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。The knives are oriented toward the evaporating section 15 in the direction of the evaporating section 15 to form a connecting portion 171. - The working fluid is a substance with a lower boiling point such as water, alcohol, methanol, etc., and the working fluid is easily drawn into the true body so that the working fluid is easily absorbed by the tube body and 15 times. Move to the condensing section w, condense & 16 condensed money, will be released, after condensation, the liquid is returned to the evaporation section via the capillary structure 14 for the next suction, and the exothermic cycle, thus completing the fever department Effective heat dissipation. The X-ray, 'Field, 纟° structure 14 includes a plurality of micro-8 1339256 fine grooves l42, 143 extending along the inner wall of the pipe body 11 and a vessel 145' attached to the grooves 142, 143. 143 is located in the evaporation section 15 of the heat pipe 10, the groove 142 is located in the condensation section 16 of the heat pipe 10, the grooves [42, 143 have the same groove depth, and the apex angle Ai (groove apex angie) of the kernel groove 143 is larger than The apex angle A2 of the groove 142 '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 located in the Luofa section 15 The groove width of 143 is less than the groove width of the groove 142 located in the condensation section 16. The vessel 145 is a flexible tubular structure formed by weaving 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. The inner 4 is formed - a central passage 1452, and the pores on the tube wall 1451 are in communication with the medium-to-one force 1452. The vessel 145 is circular in shape and extends along its axial direction. The condensation section 16 of the heat exchanger 10 extends to the evaporation section 15. The vessel 145 is bent along the tubular body 11 corresponding to the position of the junction of the heat section 17. , the wall 1451 can be occupied with the evaporation section 15 and the condensation section 16 of the pipe body 11, respectively. . The thickness of the slab slab 1451 remains unchanged in the axial direction. The straight 彳k of the central passage 52 can be extended from 〇5mm to several millimeters or more, and the maximum value can be appropriately adjusted according to different working fluids. For example, pure water is used as the working fluid, and the diameter of the C 452 is preferably. In order to reach between 2mm, so that the direction of the working fluid can be singular, the liquid pure water formed by the condensation and condensation can be directly sent to the evaporation section - and in the Luofa section 15 The vapor of the endothermic vaporization vaporizes from the vessel 145 and the tube - I channel to the cold-extinguishing section 16' to avoid the central passage 14S9 of the vessel 145, *. The mixing of the threshold liquid affects its function of transporting the fluid. The outer diameter of the vein 1339256 tube 145 is much smaller than the diameter of the inner hole of the tube body 11. The tube wall 1451 is axially conformed to the grooves 142, 143 of the inner wall of the tube body 11, and the 'holes and grooves 142' on the tube wall 161. 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. Therefore, 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. The inner bore 'increases the contact area of the capillary structure 14 with the working fluid. The heat pipe 10 can be obtained by providing a pipe body 11 having a uniform diameter of a plurality of micro-fine grooves 142 on the inner wall. At this time, the groove 142 is axially extended and uniformly disposed inside the pipe body 11. On the wall surface, the groove 142 has the same size and shape in the axial direction; the pipe body n is reduced as the pipe diameter of the portion of the evaporation portion 15, and at this time, the groove corresponding to the portion of the evaporation portion 15 is formed as the pipe diameter is reduced. a groove 143 having a smaller groove width, a portion of the evaporation portion 15 forming a groove width transition portion 171, and the remaining portion of the groove 142 having a constant groove width; providing a linear vessel 145 for the vessel 145 ♦ placed in the g body 11 and extending along the axial direction of the pipe body n, and then high temperature k, '. D, to fix the vessel 145 and deform it to fit the pipe body 11; pumping, empty And filling the tube body η with an appropriate amount of working fluid; sealing, to obtain the desired, S 10 . The groove 142 of the inner wall of the pipe body 11 can be formed by drawing along the inner wall of the pipe body; the vessel 145 is formed by weaving with a wire diameter of about 〇.5 mm ^ pure copper wire, and the thickness of the wall portion 1451 is about 0.2mm, the diameter of the middle L-lane 1452 is about 1mm. After the vessel 145 is placed in the tubular body 11, the pulse camping 145 and the tubular body u are bonded together, so that the two are connected. As the body, and in the process, the vessel 145 corresponds to the heat pipe connection 10 1339256 part of the portion of the deformation of the fold, so that the two of them fit together: reduce the tube u of the private iR a g limb 11 rotation of the contraction The diameter of the method or the rotary impact tube can be taken at a high speed as shown in Fig. 4 and Fig. 5. The high speed rotary tube shrinkage method is mainly used for the reduction of the bobbin. The high speed rotation shrinkage tube mold s 乂 mold (10) is a hollow tube. Body, along the second derivative; = Wei shrink tube portion 22 and a thin tube portion 23. The guiding portion 21^/^=, 1:= is equal in diameter, and the tapered portion 22 is formed from the inner diameter of the guiding portion and the inner diameter of the connecting portion m to be formed. For the part t, first use a ^ ^ ^ and 15 outside ^ equal. The tube u is fixed on the shrinking tool 50; the end of the rotating tube is driven to the end of the body η = (4) _ = 1G axis To the length of the π. 疋 length, the guiding portion 21 guides (4) & 4 2 〇 gradually forwards the moving portion 22 and the portion of the tube to be shrunk ^ ' Make the part of the pipe diameter gradually as shown in Figure 6 el _, the evaporation section ... the main ^ shown 'the method of shrinking the tube mainly through - rotating die 3 〇 including at least two partial dies 31 a ^; The rotary impact tube surface 32 has a circular arc-shaped interior 36 along the fine mother blade 31. When the 222, the divergent portion 35, and the thin tube hook are distributed to a specific knife, the inner surface 32 of the circular arc may be formed on the circumferential surface, wherein the thin tube The portion 30 corresponding to the diverging portion 35 corresponds to the outer surface of the evaporating portion 15 formed, and the 'Tian Tian is gradually expanded outwardly at the end of the 36, which corresponds to the circumferential surface of the 11 1339256 and the connection portion 171 to be formed. Corresponding to the outer surface, the guiding portion 34 is located at one end of the larger opening of the diverging portion 35, and the circumferential surface formed thereof corresponds to the outer surface of the condensation portion 16. In the process of shrinking the tube, the tube body 11 is firstly fixed by the fixing tool 50. Fixed to the table 40; each of the split molds 31 for driving the impact shrinking tube mold 30 is rotated at a high speed and gradually gradually approaches the tube body 11 in the radial direction of the tube body 11, and the tapered portion 35 and the thin tube portion 36 and the portion to be contracted The tube body 11 is impacted to form the evaporation section 15 and the connecting portion 171 of the desired heat pipe 10. In addition, in order to obtain the evaporation section 15 of sufficiently long length, the impact shrinkage die 30 moves in the radial direction of the tube body 11. At the same time, the axial movement of the impact shrinkage die 30 along the tubular body 11 can also be driven together. The rotating impact shrinkage tube method can be used to shrink the tube in any area in the middle of the tube body 11. For example, for the "U" type heat pipe, the evaporation section with a smaller diameter can be disposed in the middle portion of the heat pipe, and both ends of the pipe body are The condensation section is formed to suit various applications. The manufacturing method of the heat pipe 10 narrows the groove width of the inner groove 143 of the evaporation section 15 of the obtained heat pipe 10 by the step of reducing the diameter of the evaporation section 15 of the pipe body 11. And the apex angle is increased. Therefore, compared with a heat pipe having a uniform groove size, the evaporation section 15 of the heat pipe 10 has a small groove size, which improves the capillary action of the evaporation section 15 of the heat pipe 10. The force reduces the thermal resistance value, thereby increasing the capillary force of the overall heat pipe 10 and the maximum capillary heat transfer limit. The heat pipe 10 can achieve the above-mentioned effects by means of simple machining, so that the amount is convenient. The heat pipe 10 is formed by the wall portion 1451 of the vessel 145 to form a porous structure having fine pores, and the capillary force is generated to adsorb the condensed working fluid and pass through the smaller center of the vessel 145. The road 1452 is directly conveyed to the steaming section 12 1339256, and the working fluid is prevented 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 pipe body 11, and supplementing the original heat pipe 10 The capillary force and the fluid transporting ability enhance the heat exchange between the evaporation section 15 of the heat pipe 10 and the condensation section 16. The vessel 145 is rewritable, and only one side and the tube body extend along the direction of the high temperature process. When the heat pipe 10 is flattened or bent, the vascular tube 145 can maintain its conventional function, thereby improving the heat transfer performance of the heat pipe 10. The heat pipe 10 can also be provided with a plurality of vessels 145 at the same time. The vascular tubes 145 may be arranged in the tube body or spaced apart from each other. As shown in FIG. 8 and FIG. 9, respectively, the plurality of vessels 145 may further complement the capillary force and fluid transport capacity of the heat pipe 10 to avoid condensation. The working fluid is easily accumulated in the condensation section 16 due to gravity, resulting in an increase in thermal resistance, and the heat pipe 10 is bent into an "L" shape or a "U" shape or other bent shape, or the heat pipe 10 is shrinked and completed. After the flat operation The vessel 145 while still maintaining a conventional function to enhance the overall heat transfer performance of the heat pipe 10. In summary, the present invention complies with the requirements of the invention patent, and proposes a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a preferred embodiment of a heat pipe of the present invention. Figure 2 is a cross-sectional view of the heat pipe of Figure 1 taken along the Π-Π line. Figure 3 is a cross-sectional view of the heat pipe of Figure 1 taken along the ΙΠ-ΠΙ line. 13 1339256 Figure 4 is a schematic diagram of the high speed rotary shrink tube 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.
【主要元件符號說明】 轨管 *、、、 & 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、A2 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[Main component symbol description] Rail tube *, ,, & 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 Tip angles A1, A2 Tip width W1, 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 Guide portion 34 gradually expanding portion 35 thin tube portion 36 table 40 fixing tool 50
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