201104202 六、發明說明： 【發明所屬之技術領域】 本發明涉及-種散熱裝置，尤係—種迴路熱管 【先前技術】201104202 VI. Description of the Invention: [Technical Field] The present invention relates to a heat dissipating device, in particular, a loop heat pipe [Prior Art]
隨著電子資訊業不斷發展，電子產品朝向更_薄 短小及多功能、更快速運行之趨勢發展，電子=件 所釋放之熱量亦隨之愈來愈多，導致其進—步發展 必須面臨如何降低電子元件工作溫度之瓶頸。^使 高科技電子產品發揮應有之功能，設計高效率之散 熱裝置已成為業界發展下—代先進電子產品之重要 挑戰’因此迴路式熱管之運用將會係未來趨勢。 目4迴路式熱官通常包括_蒸發部、—冷凝部及 連接該蒸發部及冷凝部之一蒸汽管線及一液體管 線:該蒸發部用於與熱源接觸，以吸收熱源之熱量。 °亥蒸發。卩包括一金屬殼體及收容於殼體内之一毛細 、.°構該毛細結構包括一中央具儲液槽之中心部及 自中“。卩外侧面呈放射狀延伸且與殼體内表面熱接 觸之，數延伸部。相鄰之二延伸部及殼體内表面共 同圍11又形成一蒸汽通道。毛細結構内之工作介質受 熱蒸卷產生之蒸汽通過該蒸汽通道流通至蒸汽管 線，、’二冷凝部冷凝後經液體管線回流至蒸發部。毛 細結構僅通過延伸部之端面與殼體熱接觸，如此， 僅^伸。卩内之工作介質直接吸收殼體之熱量而發生 201104202 相變化從而吸收殼體之熱量，其他部分之毛細結構 通過吸收设體輻射之熱量而發生相變化，如此，蒸 發部内工作介質之相變化機率及蒸發效率低，進而 導致迴路熱管之散熱效率降低，甚致失效。 【發明内容】With the continuous development of the electronic information industry, electronic products are moving towards a trend of thinner, shorter, more versatile and faster operation. The heat released by electronic components is also increasing, which leads to the development of advanced technology. Reduce the bottleneck of the operating temperature of electronic components. ^ Making high-tech electronic products play their due role, designing high-efficiency heat sinks has become an important challenge for the industry to develop next-generation advanced electronic products. Therefore, the use of loop-type heat pipes will be the future trend. The 4-circuit type thermal officer usually includes an evaporation portion, a condensation portion, and a vapor line connecting the evaporation portion and the condensation portion and a liquid line for contacting the heat source to absorb the heat of the heat source. ° Hai evaporation. The utility model comprises a metal casing and a capillary contained in the casing. The capillary structure comprises a central portion of the central liquid storage tank and the central portion thereof. The outer surface of the crucible extends radially and the inner surface of the casing The thermal contact, the plurality of extensions, the adjacent two extensions and the inner surface of the casing together form a steam passage. The working medium in the capillary structure is circulated through the steam passage to the steam pipeline through the steam passage. The two condensation parts are condensed and then returned to the evaporation section via the liquid pipeline. The capillary structure is in thermal contact with the casing only through the end face of the extension portion, so that only the working medium in the crucible directly absorbs the heat of the casing and the phase change of 201104202 occurs. Thereby absorbing the heat of the shell, and the capillary structure of the other part is phase-changed by absorbing the heat radiated by the set body, so that the phase change probability and the evaporation efficiency of the working medium in the evaporation part are low, thereby causing the heat dissipation efficiency of the loop heat pipe to decrease, so that Invalid. [Summary of the Invention]
一種迴路熱管，包括一用於與熱源貼設之一蒸發 部及與該蒸發部兩端形成一密封迴路之一管路，該 蒸發部包括一殼體及貼設於殼體内壁之一毛細結 構，該毛細結構包括貼設於蒸發部殼體整個内表: 之第一毛細部及被第一毛細部圍繞之一第二毛细 部，該第一、第二毛細部之間開設有複數蒸汽通道。 與習知技術相比，本發明中第一毛細部完全 _之吸熱部之殼體，可快速之吸收殼體之敎 二二而使第一毛細部内之液態工作介質快速蒸發 :设體之熱量，進而提高迴路熱管之散 【實施方式】 如圖1所示，為本發明第—實施例 :路熱管包括一與熱源貼設 二 發部密封連接之一繞性 及一亥条 容於該迴路熱管内。 路20。硬數工作介質收 請同時參閱圖2,該蒸發部 11及貼設於殼體n内壁之—毛二包括一金屬殼體 部10可α目 、，田、、、σ構13。該蒸發 10可以具有多種形狀，如 …、七 我方形、正方形、圓柱 201104202 狀等，其具體形狀根據與其配合之熱源形狀決定。 在本實施例中，該蒸發部1G呈圓柱狀，且關於盆水 準之中心軸對稱設置。 該毛細結構13包括貼設於蒸發部1〇 個内表面之一第一毛細香"31及貼設于第一毛細二 131且與該第一毛細部131連通之一第二毛細呷 133’第一、第二毛細部131、133之間、沿其長二 方向開設有複數蒸汽通道135。 & 該第一毛細部131由編織結構或燒結之粉體形 成’呈環狀設置。第一毛細部131之—側面貼設於 該殼體1 2之内壁上，且覆蓋殼體11之整個内壁。 第一毛細部131之孔隙率大於第二毛細結構13^之 孔隙率’從而第一毛細杳"31具有較第二毛 133更大之毛細力。 $ • 該第二毛細部133同樣由編織結構或燒結之粉 體形成’其包括一柱狀之中心苦P 1331及自中心部 1 331外表面呈放射狀向外延伸之複數延伸部1333。 2 該中心部1331中部沿其延伸方向開設有-柱狀之儲 液槽137用於存儲工作介質^延伸部η%均句分 佈於中心部1331外側，且其最外端與第一毛細部i3i 連接。二相鄰之延伸部1333及第一毛細部131乒同 圍成該蒸汽通道135。第一、第二毛細部133通過燒 結、焊接或其他方式連接。 201104202 該蒸發部10之殼體11包括一與熱源接觸之吸熱 部112及自吸熱部112之一端向外延伸之一伸展部 114。該伸展部114之直徑大於吸熱部112之直徑， 用於儲存液態工作介質。該吸熱部112之另一端中 部開設有一蒸汽出口 1121。該伸展部114遠離吸熱 部112 —端之中部開設有一液體入口 1141。該毛細 結構13具有一封閉段132及自封閉段132延伸之一 開口段134。該封閉段132貼設於吸熱部112内表面 且抵頂吸熱部112蒸汽出口 1121對應之側壁。該開 口段134貼設於伸展部114内表面，且其開口對應 液體入口 1141。 該儲液槽137包括位於封閉段132中部之第一儲 液槽1371及位於開口段134中部之第二儲液槽 1373。該第一、第二儲液槽1371、1373相互連通， 且第二儲液槽1373之直徑大於第一儲液槽1371之 直徑。第一儲液槽1371用於收容毛細結構13封閉 段132内之液態工作介質及由該等液態工作介質受 熱而形成之汽態工作介質。第二儲液槽1373用於收 容自管路20回流之液態工作介質。 ’ 該繞性管路20 —端與蒸發部10之蒸汽出口 1121密封連接，另一端與液體入口 1141密封連接。 該管路20與蒸汽出口 1121連接之部分為蒸汽管線 21，其與液體入口 1141連接之部分為液體管線22。 201104202A loop heat pipe includes a conduit for attaching an evaporation portion to a heat source and forming a sealed circuit at both ends of the evaporation portion, the evaporation portion including a casing and a capillary structure attached to an inner wall of the casing The capillary structure includes a first capillary portion attached to the entire inner surface of the evaporation portion casing and a second capillary portion surrounded by the first capillary portion, and a plurality of steam passages are opened between the first and second capillary portions . Compared with the prior art, the housing of the first capillary portion of the first capillary portion of the present invention can quickly absorb the enthalpy of the housing to rapidly evaporate the liquid working medium in the first capillary portion: the heat of the body And improving the dispersion of the loop heat pipe. [Embodiment] As shown in FIG. 1 , in the first embodiment of the present invention, the road heat pipe includes a sealing connection with a heat source attached to the second portion, and a coil is accommodated in the circuit. Inside the heat pipe. Road 20. Referring to FIG. 2, the evaporating portion 11 and the hair splicing portion affixed to the inner wall of the casing n include a metal casing portion 10 which can be a mesh, a field, a sigma structure 13 . The evaporation 10 can have various shapes such as ..., seven squares, squares, cylinders, etc., and the specific shape is determined according to the shape of the heat source to which it is matched. In the present embodiment, the evaporation portion 1G has a cylindrical shape and is symmetrically disposed about the center of the basin level. The capillary structure 13 includes a first scented scent attached to one of the inner surfaces of the evaporation portion 1 and a second capillary 133 133 attached to the first capillary portion 131 and communicating with the first capillary portion 131. A plurality of steam passages 135 are opened between the first and second capillary portions 131 and 133 along the longitudinal direction thereof. & The first capillary portion 131 is formed in a ring shape by a braided structure or a sintered powder. The first capillary portion 131 is affixed to the inner wall of the casing 12 and covers the entire inner wall of the casing 11. The porosity of the first capillary portion 131 is greater than the porosity of the second capillary structure 13^ such that the first capillary 杳&31; has a larger capillary force than the second capillary 133. The second capillary portion 133 is also formed of a woven structure or a sintered powder, which includes a columnar center bitter P 1331 and a plurality of extension portions 1333 extending radially outward from the outer surface of the center portion 1 331. 2 The middle portion of the central portion 1331 is opened along the extending direction thereof - a columnar liquid storage tank 137 is used for storing the working medium, and the η% uniform sentence is distributed outside the center portion 1331, and the outermost end thereof and the first capillary portion i3i connection. The two adjacent extensions 1333 and the first capillary portion 131 are pinged together to form the steam passage 135. The first and second capillary portions 133 are joined by sintering, welding or the like. The casing 11 of the evaporation portion 10 includes a heat absorbing portion 112 in contact with the heat source and a stretch portion 114 extending outward from one end of the heat absorbing portion 112. The extension 114 has a diameter larger than the diameter of the heat absorption portion 112 for storing the liquid working medium. A steam outlet 1121 is defined in the middle of the other end of the heat absorbing portion 112. The extension portion 114 is provided with a liquid inlet 1141 at a middle portion of the end portion of the heat absorption portion 112. The capillary structure 13 has a closed section 132 and an open section 134 extending from the closed section 132. The closed section 132 is attached to the inner surface of the heat absorbing portion 112 and abuts the side wall corresponding to the steam outlet 1121 of the heat absorbing portion 112. The opening section 134 is attached to the inner surface of the stretched portion 114 and has an opening corresponding to the liquid inlet 1141. The reservoir 137 includes a first reservoir 1371 in the middle of the closed section 132 and a second reservoir 1373 in the middle of the open section 134. The first and second liquid storage tanks 1371, 1373 are in communication with each other, and the diameter of the second liquid storage tank 1373 is larger than the diameter of the first liquid storage tank 1371. The first liquid storage tank 1371 is for accommodating the liquid working medium in the closed section 132 of the capillary structure 13 and the vapor working medium formed by the heat of the liquid working medium. The second reservoir 1373 is for receiving a liquid working medium that is recirculated from the line 20. The winding end 20 is sealingly connected to the steam outlet 1121 of the evaporation portion 10, and the other end is sealingly connected to the liquid inlet 1141. The portion of the line 20 connected to the steam outlet 1121 is a steam line 21, and the portion connected to the liquid inlet 1141 is a liquid line 22. 201104202
使用枯，瘵發部10殼體11之吸熱部112吸收熱 源之熱i，其内壁上之第一毛細部受熱而導致 其内部之工作介質蒸發形成汽態工作介質，從而帶 走熱量。第一毛細部131產生之汽態工作介質通過 蒸汽通道135自蒸汽出口 1121進入蒸汽管線21。同 時蒸汽管線21向外輻射熱量而使蒸汽管線21内之 汽態工作介質冷卻而形成液態工作介質，液態工作 介質進入液體管線22,然後通過液體入口 1141進入 洛發部10之第二儲液槽1373巾。為加快蒸汽管線 21内汽態工作介質之冷卻’可在蒸汽管線21外部貼 設-散熱裝置’在本實施例中，該散熱裝置為一導 熱板30。由於毛細力之作用，第一、第二儲液槽 1371、1373中之液態工作介質通過第二毛細部 之中心部1331及延伸部1333傳送至第一毛細部 131 ’從而防止第一羊化都， 乇、.，田。卩131發生幹燒現象，保障 了迴路熱管之穩定性。 請同時參閱圖3,為本發明第二實施例中蒸發部 1 由〇1之剖視圖。本實施例中蒸發部施與第-實施例 中洛發部1〇為一之區別在於：第一、第二毛細部 131a、133a-體形纽具有相同之孔隙率。 可以理解地’本發明中，第-毛細部131完全覆 盍蒸發部10之吸熱部112 體π之熱量，從而使第—毛Γ二速吸收殼 ^ 毛細部131内之液態工作 201104202 介質快速蒸發而帶走殼體11之熱量，進而提高迴路 熱管之散熱效率。With the use of heat, the heat absorbing portion 112 of the casing 11 absorbs the heat i of the heat source, and the first capillary portion on the inner wall is heated to cause the working medium inside to evaporate to form a vapor working medium, thereby taking heat away. The vaporous working medium produced by the first capillary portion 131 enters the steam line 21 from the steam outlet 1121 through the steam passage 135. At the same time, the steam line 21 radiates heat outward to cool the vapor working medium in the steam line 21 to form a liquid working medium. The liquid working medium enters the liquid line 22 and then enters the second liquid storage tank of the Luofa portion 10 through the liquid inlet 1141. 1373 towel. In order to speed up the cooling of the vaporous working medium in the steam line 21, the heat sink can be attached to the outside of the steam line 21. In the present embodiment, the heat sink is a heat conducting plate 30. Due to the capillary force, the liquid working medium in the first and second liquid storage tanks 1371, 1373 is transferred to the first capillary portion 131' through the central portion 1331 and the extension portion 1333 of the second capillary portion to prevent the first amniotic , 乇,.,田. The dry burning phenomenon of 卩131 ensures the stability of the loop heat pipe. 3 is a cross-sectional view of the evaporation portion 1 from the first embodiment in the second embodiment of the present invention. In the present embodiment, the evaporation portion is applied to the first embodiment in the first embodiment, and the first and second capillary portions 131a, 133a have the same porosity. It can be understood that in the present invention, the first capillary portion 131 completely covers the heat of the body π of the heat absorbing portion 112 of the evaporation portion 10, so that the liquid working 201104202 medium in the second capillary absorbing capillary portion 131 is rapidly evaporated. The heat of the casing 11 is taken away, thereby improving the heat dissipation efficiency of the loop heat pipe.
，·示上所述’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 李父佳實施方式’自不能以此限制本案之申請專利範 :二：凡熟悉本案技藝之人士援依本發明之精神所 =專效修飾錢化1應涵蓋於以τ申請專利範 【圖式簡單說明】 圖1係本發明第—實施射迴路熱管之示意圖。 圖2係圖i中迴路熱管之 剖視圖。 /σ 剖面之According to the above description, the invention has indeed met the requirements of the invention patent, and 提出 filed a patent application according to law. However, the above description is only the embodiment of the invention of Li Jiajia of the present invention. It is not possible to limit the patent application scope of the present invention: 2: Anyone who is familiar with the skill of the present invention is in accordance with the spirit of the present invention = special effect modification Qianhua 1 It should be covered by the application of the τ patent [Simplified description of the drawings] Fig. 1 is a schematic diagram of the first embodiment of the present invention. Figure 2 is a cross-sectional view of the loop heat pipe of Figure i. /σ profile
之剖視圖 【主·要元件符號說明 蒸發部 毛細結構 蒸汽管線 導熱板 伸展部 封閉段 開口段 儲液槽 液體入口 施例中蒸發部沿 Π-ΙΙ剖面 10 殼體 13 管路 21 液體管線 30 吸熱部 114 第一毛細部 132 苐二毛細部 134 蒸汽通道 137 蒸汽出D 1141 中心部 11 20 22112 131 133 135 1121 1331 201104202 延伸部 第二儲液槽 1333 1373 第一儲液槽 1371Sectional view [main and main components symbol description evaporation part capillary structure steam line heat transfer plate extension closed section opening section reservoir liquid inlet embodiment evaporation section along the Π-ΙΙ section 10 housing 13 pipeline 21 liquid pipeline 30 heat absorption section 114 first capillary portion 132 second capillary portion 134 steam passage 137 steam outlet D 1141 central portion 11 20 22112 131 133 135 1121 1331 201104202 extension second reservoir 1333 1373 first reservoir 1371
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