1302190 、年月1 ή修(ΐϋ正替換頁 九、發明說明： 【發明所屬之技術領域】 本發明係關於—種熱傳導裝置，尤指 【先前技術】 熱管：有超靜音、快速傳熱、高熱傳導率、重量輕、 寸： '、，、可動件、結構簡單及多用途等特性，且埶管可 ^溫度幾乎保持不變的狀況下㈣快速傳輸大量熱能 ν體角色而被廣泛應用。 ° 熱管之基本構造係在密閉管材内壁概以易吸收作動流 體之毛細結構層’而其中央之空間則為空洞狀態，並在抽 真空之密閉管㈣注人相#於毛細結構層孔隙總容積之作 動流體。熱管依吸收與散出熱量之相關位置可分為蒗發 段、冷凝段以及其間之絕熱段；其工作原理係通過工作^ 體之液、汽兩相變化之潛熱來傳遞熱量：包括在蒸發段通 過瘵發潛熱自熱源帶走大量熱量，使工作流體蒸發並使蒸 汽快速通過管内空間，到達冷凝段冷卻凝結成液體且釋放 出熱能’上述工作液體則通過貼于熱管内壁之毛細結構層 所提供之毛細力回流至蒸發段，達到持續相變化之熱能迴 圈來傳輸熱量。 熱管内毛細結構所具有之毛細作用力與其之毛細孔徑 成反比（^“^⑽^^道吖⑽…尤不表面張力沘介面接觸 角；d顆粒大小；毛細孔徑（dc)與顆粒大小（dp)關係 <=α42Α;)，而管内液體回流所遭遇之阻力與毛細結構之毛細 13021901302190, 一年月1 ή修(ΐϋ正换页页, invention description: [Technical Field of the Invention] The present invention relates to a heat conduction device, especially [Prior Art] Heat pipe: ultra-quiet, fast heat transfer, high Thermal conductivity, light weight, inch: ',,, movable parts, simple structure and multi-purpose characteristics, and the manifold can be widely used under the condition that the temperature is almost constant (4). The basic structure of the heat pipe is that the inner wall of the closed pipe is easy to absorb the capillary structure layer of the actuating fluid, and the space in the center is hollow, and the closed pipe in the vacuum (4) is injected into the total volume of the pores of the capillary structure layer. Actuating fluid. The heat pipe can be divided into the bursting section, the condensing section and the adiabatic section according to the position of absorption and heat dissipation; the working principle is to transfer heat through the latent heat of liquid and vapor two-phase change of the working body: In the evaporation section, a large amount of heat is taken away from the heat source by the latent heat of the burst, so that the working fluid evaporates and the steam quickly passes through the inner space of the tube, and reaches the condensation section to cool and condense into a liquid and The heat is released. The above working liquid is returned to the evaporation section by the capillary force provided by the capillary structure layer attached to the inner wall of the heat pipe, and the heat energy loop of the continuous phase change is transmitted to transfer heat. The capillary force of the capillary structure in the heat pipe is The capillary pore diameter is inversely proportional (^"^(10)^^道吖(10)... especially the surface tension 沘 interface contact angle; d particle size; capillary diameter (dc) and particle size (dp) relationship <=α42Α;), while inside the tube Resistance encountered by liquid recirculation and capillary structure of capillary structure 1302190
Ιρ%2·月1 %獻更)正替換頁I 孔徑成反比，既毛细孔 ------1 流阻力赭+ "'越小，毛細作用力越強、液體回 仙阻力越大。不同形式之 徑，其中，董摊4' , 〜構具有大小不同之毛細孔 作用力小且ί: 構具有較大之毛細孔徑，其毛細 毛細結構體回流阻力亦較小；錢結粉末與絲網式 秤，對，栌J均形成多孔構造’因此具有更小之毛細孔 ;液=，更大之毛細作用力，惟，隨著孔隙變小， ==:Γ，這係因為毛細孔徑越小，流體所 又〗之厚擦阻力與黏滯力亦越大。 ri^rAt習Τ熱管之軸向剖面示意圖’該熱管包括金屬 :二庐设於殼體1〇内之毛細結構20，該熱管-端形成 又40另-端形成冷凝段6〇，且根據應用需要可在兩 ^中間佈魏熱段5〇,該蒸發段4㈣於純外界熱源之孰 里，並且把熱量傳遞給管内之工作液體（圖未示），使其蒸 發’絕熱段5〇主要係負責傳輸蒸汽，並擔負著與外界絕敎 2作用，該冷凝段60之作關使汽態之蒸汽冷凝，並把熱 =通過，壁傳導至管外再以散熱系統導至大氣中。使用 ^熱g之蒸發段40置於高溫熱源處，密閉金屬殼體 二之工作液體叉熱而瘵發成氣態，該蒸汽經由殼體1〇内蒸 汽通道流向冷凝段60後放出熱量而冷凝成液態，該冷凝液 體在金屬殼體10内壁毛細結構之吸附力下經由絕熱段5〇 决速返回蒸發段4〇並繼續下一次工作迴圈，如此將熱量從 —處傳遞至另一處，以達到熱管散熱之目的。 該熱管内部從蒸發段40至冷凝段60均採用單一形式之 毛細結構，如單一溝槽式結構、.單一燒結粉末式結構或單 T30?1QO !— UV/i 丄 QlR 〇 1 ~——一…——一·…·. ft* A2叫咖編丨 一絲網式結構，故’在埶 大埶流密产幾丰# #”、、s作之母—局部所能承受之最 X熱飢在度成手係—致之，該結構 眭善鉬妒，丨々4 Μ 之毛細結構無法同 牯兼顧車乂小之流體回流阻力與較大之毛 能同時在外界熱源與管内# ’、 路徑。 5内工作液體之間提供有效之熱傳導 【發明内容】 有鑒於此’有必要提供-種熱傳效率高之埶管。 一種熱管，包括： … 之殼體’其㈣設有毛細結構，並封入殼體内 L里工作液體’該熱管包括—冷凝段及_蒸發段，該墓 發段殼體㈣在殼體至内腔中心、之徑向上Μ : 結構’該等毛細結構之毛細孔徑在殼體至⑽徑向 上依序遞增。 該熱官與習知技術相比具有如下優點··上述蒸發段毛 細結構之毛細孔徑由殼體至内腔中心之徑向上遞增，相應 1毛細力則由殼體至内腔中心之徑向上逐層遞減，亦即越 靠近殼體之毛細結構之毛細力越大。當冷凝段之液離工作 液體回流至蒸發段時，基本上係停留在靠近殼體之杨結 構中，並且當遠離殼體之毛細結構中内含有液態工作流體 時，由於其毛細力小於靠近殼體之毛細結構之毛細力，而 容易被吸入靠近殼體之毛細結構中，使得遠離殼體之毛細 結構之毛細孔不會被液態工作流體賭塞。當該熱管蒸發段 文熱時，靠近殼體之毛細結構中的液態工作液體最先受熱 1302190 , 蒸發成氣體，該氣體順利地從遠離殼體之毛細結構之毛細 :·，孔穿過，進入熱管内腔中，並回流到冷凝段進行，如此往 '復循環，達到快速傳輸熱量之目的。 【實施方式】 圖2和3分別係本發明熱管之第一實施例之軸向剖面 及其瘵發段400之截面示意圖。該熱管係以直型熱管來舉 例，其主要包括殼體100、設置於殼體1〇〇内壁之毛細結構 以及封入到殼體100内之適量工作液體（圖未示）。殼體 100可由銅、鋁等導熱性良好之金屬材料製成，其内一般被 抽成真空或接近真空，以利於工作液體之受熱蒸發。工作 液，-般為水、酒精、氨水及其混合物等潛熱較高1液體。 熱&内之毛細結構包括溝槽式毛細結構200、燒結粉末式毛 細結構210以及絲網式毛細結構22〇。 該熱管按魏m分有·段_、絕熱段和冷 —00 _個σρ刀’該絶熱段5⑽位於熱管中間連接其兩 之蒸發段4GG和冷凝段_。此外，該絕熱段·盘冷凝 =〇〇兩部分之殼體内壁分職置之—層溝槽式毛細 該蒸發段_部分之殼體⑽内壁設置一層溝槽 在該溝槽式毛細結構2001溝槽間填充陶 屬粉體等粉末顆粒並進行燒結，形成溝槽與燒 5式毛細結構，同時，在該層溝槽式毛細結構· 圈^-層燒絲末式毛細結構训，祕賴結粉末 =結構210内圈設置-層絲網式毛細結構跡該等毛 。構200、210及220中央之空間則為蒸汽通道，該溝槽 1日修(更)正替換頁 、燒結粉末式毛細結構210及 100至殼體100内腔中心依序 1302190 與燒結粉末複合式毛細結構 絲網式毛細結構220由殼體 .排歹！ ’匕們之毛細孔徑大小依序遞增。 ，之工作液體回流到蒸發段400更為順暢、迅速。同時在 春I x ’又4〇〇 口I5刀之设體1〇〇内壁之溝槽内填充粉體除可以 增加毛細結構之強度外，還可以形成細小之毛細孔徑，以 上述熱管在絕熱段500及冷凝段600可以設置溝槽式 ，細結構200’係因為溝槽式毛細結構2〇〇之毛細孔徑相對 最大，由冷凝段6〇〇回流到蒸發段4〇〇之阻力最小，故冷 -增加其毛細力，確保在絕熱段5〇〇及冷凝段6〇〇冷卻之工 ，作液體被快速且有效地吸引至蒸發段4〇〇。在徑向上，熱管 ’’、、毛I又400 δ又置燒結毛細結構21〇具有細小之毛細孔徑及 數里龐大之孔隙分佈以利於形成沸騰熱傳之成核點，從而 加速工作液體蒸發作用之發生，同時該燒結粉末式毛細結 構210之内圈设置絲網毛細結構22〇，既可以將沸騰氣泡再 馨-人刀告彳以形成更多之微氣分子，亦可以在熱管製造過程中 改善其蕊棒脫膜性之不良，以增加其量産性。 圖4為本發明另一實施例之熱管蒸發段400之截面示 意圖，其較第一實施例而言，主要差異在於其不同形式之 毛細結構之排列方式不同。本實施例由金屬殼體咖表面 至腔體中心其毛細結構組合依序為溝槽式毛細結構2⑽、絲 網式毛細結構220及燒結粉末式毛細結構21〇，同時其孔徑 大小由，屬殼體1GG表面至腔體中心依序遞減。其主要功 能在熱管之轴向方向具有低流阻之溝槽式毛細結構勘將 13 02190 r—一—~ ~ — 4 %修(更)正替換頁 冷凝段600或絕熱段5〇〇所冷凝之工作蒸 f端400,在蒸發端_因腔體中心毛細結構之毛細作用力 退大於其他形式之毛細結構，同時工作液體受熱形成蒸汽 而膨脹有-在控向方向之分力作用，兩種作用力之具有相 加相成,效果因此可以有效將經相變作用所産生之蒸汽快 速經由瘵汽通道傳輸至冷凝段6〇〇。 可以理解’在本發明實施例中，熱管絕熱段500可以 根據需要加設，且該絕熱段設置之毛細結構可以與冷 凝& 600或条發段權相同，或者設置毛細孔徑介於蒸發 段400與冷凝段_之間之毛細結構，如此則從冷凝^ 議、絕熱段至蒸發段彻所設毛細結構之毛細孔徑依 次逐漸減小，使回流液體回流更順暢。 綜上収，本㈣符合發明專㈣件，絲法提出專 射請。惟，以上所述者僅為本㈣之較佳實施例，舉凡 1=本案技藝之ί士’在爰依本發明精神所作之等效修飾 s’”化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 之軸向剖面示意圖。 一實施例之轴向剖面示意圖。 實細例蒸發段橫截面示意圖。 二實施例蒸發段橫截面示意圖。 圖1係習知技術中熱管 圖2係本發明熱管之第 圖3係本發明熱管之第 圈4係本發明熱管之第 【主要元件符號說明】 [習知] 11Ιρ%2·月1%优惠)) Replacement page I The aperture is inversely proportional, both capillary pores ------1 flow resistance 赭+ "'the smaller the capillary force, the greater the liquid resistance . Different types of diameters, in which the 2's, the size of the pores with different sizes are small and ί: the structure has a larger capillary pore size, and the capillary capillary structure has less reflux resistance; the money knot powder and silk Net type scales, right, 栌J all form a porous structure 'so have smaller pores; liquid =, larger capillary force, but as the pores become smaller, ==: Γ, this is because the capillary diameter Small, the fluid has a thicker resistance and viscous force. A schematic diagram of the axial section of the ri^rAt heat pipe. The heat pipe comprises a metal: a capillary structure 20 disposed in the casing 1 , the heat pipe end forming 40 and the other end forming a condensation section 6 , and according to the application It is necessary to arrange 5 Wei in the middle of the Weiwu section, the evaporation section 4 (4) in the pure external heat source, and transfer the heat to the working liquid in the tube (not shown) to evaporate the 'adiabatic section 5〇 main system Responsible for the transmission of steam, and is responsible for the external enthalpy 2, the condensation section 60 is closed to condense the vapor of the vapor, and the heat = pass, the wall is conducted to the outside of the tube and then guided to the atmosphere by the heat dissipation system. The evaporation section 40 of the heat g is placed at a high temperature heat source, and the working liquid fork of the sealed metal casing 2 is heated to a gaseous state, and the steam flows to the condensation section 60 through the steam passage in the casing 1 to discharge heat and condense into In a liquid state, the condensed liquid is returned to the evaporation section 4〇 via the adiabatic section 5〇 under the adsorption force of the capillary structure of the inner wall of the metal casing 10, and continues to the next working loop, so that heat is transferred from the other to the other To achieve the purpose of heat pipe heat dissipation. The heat pipe has a single form of capillary structure from the evaporation section 40 to the condensation section 60, such as a single groove structure, a single sintered powder structure or a single T30?1QO!-UV/i 丄QlR 〇1 ~- ...——一·...·. ft* A2 is called a coffee shop, a wire mesh structure, so 'in the big 埶 埶 产 几 几 # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # In the degree of the hand system, the structure of the 眭 妒 妒 妒 丨々 丨々 丨々 丨々 Μ Μ Μ 丨々 丨々 牯 牯 牯 牯 牯 牯 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体 流体5. Providing effective heat conduction between the working liquids in the present invention [Inventive content] In view of the above, it is necessary to provide a heat pipe having a high heat transfer efficiency. A heat pipe comprising: a casing of (the fourth) is provided with a capillary structure, and Enclosed in the housing L working liquid 'the heat pipe includes - condensation section and _ evaporation section, the tomb section housing (four) in the shell to the center of the cavity, the radial direction of the structure: the structure of the capillary structure of the capillary structure The casing to (10) are sequentially increased in the radial direction. The heat officer has the same as the conventional technology. Advantages · The capillary diameter of the capillary structure of the above evaporating section is increased from the radial direction of the shell to the center of the inner cavity, and the corresponding capillary force is gradually decreased from the shell to the center of the inner cavity, that is, the closer to the capillary of the housing The greater the capillary force of the structure, when the liquid of the condensing section is returned to the evaporation section from the working liquid, it basically stays in the poplar structure close to the casing, and when the liquid working fluid is contained in the capillary structure away from the casing, Since the capillary force is smaller than the capillary force of the capillary structure near the casing, it is easily sucked into the capillary structure close to the casing, so that the capillary pores away from the capillary structure of the casing are not smashed by the liquid working fluid. When the heat pipe evaporates When the segment is hot, the liquid working liquid in the capillary structure close to the shell is first heated 1302190, and evaporated into a gas, which smoothly passes from the capillary of the capillary structure away from the casing: ·, the hole passes through, enters the inner cavity of the heat pipe And returning to the condensation section, so as to 'recycle, to achieve the purpose of rapid heat transfer. [Embodiment] Figures 2 and 3 are respectively the first embodiment of the heat pipe of the present invention A schematic view of an axial section and a section of the burst section 400. The heat pipe is exemplified by a straight heat pipe, and mainly includes a casing 100, a capillary structure disposed on the inner wall of the casing 1 and an appropriate amount enclosed in the casing 100. Working liquid (not shown). The housing 100 can be made of a metal material with good thermal conductivity such as copper or aluminum, and is generally evacuated or vacuumed to facilitate the evaporation of the working liquid. Working fluid, generally The latent heat of water, alcohol, ammonia and its mixture is higher than 1 liquid. The capillary structure in the heat &amp; comprises a grooved capillary structure 200, a sintered powder type capillary structure 210 and a wire mesh capillary structure 22〇. The divided section _, the adiabatic section and the cold - 00 _ σ ρ knife 'the adiabatic section 5 (10) is located in the middle of the heat pipe connecting the two evaporation sections 4GG and the condensation section _. In addition, the adiabatic section, the disk condensation = the two parts of the inner wall of the casing are divided into two layers - the grooved capillary capillary. The evaporation section _ part of the inner wall of the casing (10) is provided with a groove in the grooved capillary structure 2001 groove The tank is filled with powder particles such as ceramic powder and sintered to form a groove and a burnt-type capillary structure. At the same time, in the layer of the capillary structure, the ring-layer burnt-type capillary structure training, secret knot Powder = Structure 210 Inner Ring Set - Layer Wire Mesh Capillary Trace These hairs. The space in the center of the structures 200, 210 and 220 is a steam passage, and the groove is repaired (more) on the first day, and the sintered powder type capillary structures 210 and 100 are applied to the center of the inner cavity of the casing 100 in sequence with the sintered powder composite. The capillary structure of the capillary structure 220 is made up of the casing. 'The size of our capillary pores increases in sequence. The working fluid is returned to the evaporation section 400 more smoothly and quickly. At the same time, in the spring I x 'and 4 mouth I5 knife set body 1 〇〇 the inner wall of the groove filled with powder in addition to can increase the strength of the capillary structure, can also form a fine capillary pores, with the above heat pipe in the adiabatic section The 500 and the condensing section 600 may be provided with a groove type, and the fine structure 200' is because the capillary pore size of the grooved capillary structure is relatively largest, and the resistance from the condensation section 6〇〇 to the evaporation section 4〇〇 is the smallest, so the cold - Increase the capillary force to ensure that the cooling in the adiabatic section 5 〇〇 and the condensing section 6 ,, the liquid is quickly and efficiently attracted to the evaporation section 4 〇〇. In the radial direction, the heat pipe '', the hair I and 400 δ and the sintered capillary structure 21〇 have a fine capillary pore size and a large number of pore distributions to facilitate the formation of a nucleation point of boiling heat transfer, thereby accelerating the evaporation of working liquid. At the same time, the inner ring of the sintered powder type capillary structure 210 is provided with a mesh capillary structure 22 〇, which can not only boil the bubbles and re-inject the knife to form more micro gas molecules, but also can be used in the heat pipe manufacturing process. Improve the badness of the core strip release to increase its mass production. Figure 4 is a cross-sectional view of a heat pipe evaporation section 400 according to another embodiment of the present invention, which differs from the first embodiment in that the different configurations of the capillary structures are arranged differently. In this embodiment, the capillary structure of the metal shell coffee surface to the center of the cavity is sequentially combined with the grooved capillary structure 2 (10), the wire mesh capillary structure 220 and the sintered powder capillary structure 21〇, and the pore size thereof is The surface of the body 1GG is sequentially decreased to the center of the cavity. The grooved capillary structure whose main function has low flow resistance in the axial direction of the heat pipe is 13 02190 r—one —~ ~ — 4 % repair (more) positive replacement page condensation section 600 or adiabatic section 5〇〇 condensation The steaming end f of the work 400, at the evaporation end _ due to the capillary force of the capillary structure at the center of the cavity retreats more than other forms of capillary structure, while the working liquid is heated to form steam and expands - the force component in the direction of the steering direction, two The forces have an additive phase, and the effect is therefore effective to rapidly transfer the steam generated by the phase change to the condensation section via the helium channel. It can be understood that, in the embodiment of the present invention, the heat pipe adiabatic section 500 may be added as needed, and the capillary structure of the heat insulation section may be the same as the condensation & 600 or the hairline section, or the capillary diameter is set between the evaporation section 400. The capillary structure between the condensing section and the condensing section _ thus gradually reduces the capillary diameter of the capillary structure from the condensation, the adiabatic section to the evaporation section, so that the reflux of the reflux liquid is smoother. In summary, this (4) is in line with the invention (4), and the silk method proposes a special shot. However, the above is only the preferred embodiment of the present invention. The equivalent modification of the invention in the spirit of the present invention should be included in the following patent application scope. BRIEF DESCRIPTION OF THE DRAWINGS [A brief description of the drawings] A schematic view of an axial section of an embodiment. A schematic view of an axial section of an embodiment. A schematic view of a cross section of an evaporation section of a solid example. A schematic view of a cross section of an evaporation section of the second embodiment. 2 is the heat pipe of the present invention, FIG. 3 is the fourth ring of the heat pipe of the present invention, and the fourth embodiment of the heat pipe of the present invention [the main component symbol description] [conventional] 11
ΐ{1 _________ 1302190 殼體 10 毛細結構20 1 « . 蒸發段 40 絕熱段 50 冷凝段 60ΐ{1 _________ 1302190 Housing 10 Capillary structure 20 1 « . Evaporation section 40 Adiabatic section 50 Condensation section 60
[本發明] 殼體 100 燒結式毛細結構210 蒸發段 400 冷凝段 600 溝槽式毛細結構 200 絲網式毛細結構 220 絕熱段 500 C S ) 12[Invention] Housing 100 Sintered capillary structure 210 Evaporation section 400 Condensation section 600 Grooved capillary structure 200 Wire mesh capillary structure 220 Insulation section 500 C S ) 12