1289190 九、發明說明·· 【發明所屬之技術領域】 熱之裝置，特別係關於-種適合於電子元件散 【先前技術】 1=1々的趨勢發展，細在電子元件運作辭及速度不斷 ，將似解位面韻釋“缝(舰量)録愈高重 =子元件的運作性能及穩定性，甚朗高溫而燒毀鱗昂責的電= 散綠置的優德直接_電子元件的壽命及運作品質， γ,,Γ 概冷式散錄置錄滿足高躺速電子元件鮮 顳，：而ί:因為如果單以提高風扇轉速會造成過大的噪音與振動問 ㈣果早咐加雜面積又射域柄的市射 ==發揮應有的功能，設計出具有高效率、f量輕、超= 同操作功率自動調節移熱能力、並能隨產品既有狹小 重要挑戰與機會。 屋。口的 理哭結構與型式之散_可供應_腦微處 ’祕型_子是糊絲進行傳触提昇傳教效 ，’j祕原理是藉紅作流體之汽、液兩相變化的賴 置’即在熱管的蒸發段藉蒸發潛熱自熱源帶走大量熱量，使蒸汽快速 =原，成真空的官内空間，並在歸的冷凝段凝結成液體且釋放 4，而冷凝後難貼於金屬# :速:流至r，達到持續相變化循環轉遞：== …、官技油有待克服的嚴重缺點，主要體現在由於蒸汽與回流液體係 1289190 大二’會阻礙液體藉毛細力的回流，進而限雜管 勺取大傳‘，，、把力’而&回流的液體不足以提供蒸發所需的量時^ 生乾化(dry-out)現象而導致電腦微處理器急速升溫。 曰又 於是為避免上频點，乃有觀錢管的開發 f常包括蒸發器、冷凝器蒸汽導管及回流導管，該蒸:器： 毛細結構並填充有適量的工作液體，誃蒗、★道其 、、、 又 接該蒸發器與冷凝器以構成_環路_二^均分別連 作流體汽化，產生的蒸汽經由基汽導管 :續下次循環，她的潛熱:：;:：： 出^使，的流動不互相干擾而將熱量傳至冷凝器散出。 技〜胃t ·祕式熱官中所_之冷凝器較多係制散熱·鰭片直 傳於邕其古阳沾田息 &上或者採用類似之方式，藉由流體 傳輪導自有限關邊面積將熱量傳 除因增加介面熱阻及分散雜(s_d·政』祕出去，此種方式 刀I、阻(sP_mg re贿nce)而使整體熱阻值增 ,林懈料管中錢流過之高熱焓流體的熱量有 效傳出，嚴重限制其最大散埶鈐六 -腔麟__力。另外，料亦有齡凝ϋ設計成 =、.‘。構’亚在㈣表面再設置賴㈣，使航先沿蒸汽導管導 ^工義腔體内，以將蒸汽的熱量分散至腔體内壁較大的面積上， ^错由内壁傳遞至設置腔體表面的散銷片散發出去，但此種情形容 後的工作賴較大部分㈣在腔㈣，使醋至蒸發器的 作液體減> 而引發蒸發器乾化現象。 【發明内容】 部八^解決祕式熱官中冷凝器不能有效散熱及造成工作液體較大 ^留在腔⑽不便回流之技術問題，有必要提供—種能夠沿單一 向循環且高效傳熱的環路式熱交換裝置。 1289190 办料熱交魏i包括包括_蒸發^、 — 及一回流導管，兮菜 …/飞 λ 成—腔體並充填有工作流體，該工作流 =卻g =錢㈣產生蒸汽並經由該蒸汽導管到達該冷凝器 ，辦卻後之w再軸細流導管而獅至該蒸發 中設有熱傳增強微結構。 齡換裝置通縣冷敗設収腔構並在腔體 傳二“二結構’提供蒸汽高吸熱面積及高散熱面積之較佳熱 ’除可克服習知_藉由流體導管有限的周邊面積 熱導致熱阻值增加的不利因素外，更可克服習知 、工間過大而造成過多的冷凝液囤積於冷凝^，有效 ==喊从㈣發贿發雜化現象。 【實施方式】 第一圖為本發明環路式敎交拖奘 An— “，， t 意圖，該散熱裝置Η)包括—鄉個f外觀立體示 “、、20、一洛汽導管30、一冷凝器40 以及CU知50。該祕器2Q之_側壁於相對位置上分別設有出 口 201與人口 202，柄汽導管3Q與回流導管％分別連接該蒸發器 2〇之出口逝與入口〜皿，並與遠端之冷凝器⑽連接，從而相互彼 此連通構成-熱傳導密_路。該蒸汽導管3g與回流導管％可為且 有繞性的金屬《金屬管件，以達到能隨產品既有的狹小空間作彈性 設計並易於施以壓扁及折彎製程。 結合第二圖及第三圖所示，該冷凝器4〇串接於蒸汽導管麟回 流導管5G之間’且冷凝器㈣岭—蓋板似及第二蓋板44密閉構 成-密封㈣’射，該^额上触腔體峡伸設置概散熱細柱 體45(pmfm) ’以在冷凝益4〇腔體内形成熱傳增強微結構，使冷凝哭 40具有高吸熱面積及高散__特性，提昇冷凝器⑽的散雜 能，將進人之蒸汽舰職熱量並冷卻成液態，亦即使蒸汽進入冷凝 12891901289190 IX. INSTRUCTIONS······································································· It will be like the interpretation of the surface of the solution, "sewing (ship) recorded higher and higher weight = the performance and stability of the sub-components, very high temperature and burned the scales of the electricity = the green of the placement of the direct direct _ electronic component life And the quality of operation, γ, Γ 概 式 散 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足 满足The city shot of the shot stalk == play its due function, and design high efficiency, light weight, super = automatic adjustment of heat transfer capacity with the same operating power, and can have narrow and important challenges and opportunities with the product. The structure of the crying structure and the type of the _ can be supplied _ brain micro-secret _ sub-sub is the paste to carry out the transfer to enhance the missionary effect, 'j secret principle is to rely on the red vapor as a fluid, liquid two-phase change 'In the evaporation section of the heat pipe, the latent heat of evaporation is taken away from the heat source. Heat, make the steam fast = original, into the vacuum of the official space, and in the condensation section of the condensation into a liquid and release 4, and after condensation is difficult to stick to the metal #: speed: flow to r, to achieve continuous phase change cycle transmission :== ..., the serious shortcomings of the official oil to be overcome, mainly reflected in the steam and reflux system 1289190 sophomore 'will hinder the recirculation of the liquid by capillary force, and then limit the miscellaneous tube spoon to take the big pass', 'And & reflux liquid is not enough to provide the amount of evaporation required dry-out phenomenon causes the computer microprocessor to heat up rapidly. 曰 于 于 于 于 于 于 于 避免 避免 避免 避免 避免 避免 避免 避免 避免 避免 避免 避免 避免 避免Development f often includes an evaporator, a condenser steam conduit, and a return conduit. The steamer: has a capillary structure and is filled with an appropriate amount of working liquid, and is connected to the evaporator and the condenser to form a _ The loop _2^ is continuously vaporized by the fluid, and the generated steam passes through the base steam conduit: the next cycle, her latent heat::;::: The flow does not interfere with each other and the heat is transferred to the condenser. Out. Technology ~ stomach t · secret type of hot official More heat is applied to the device. The fins are transmitted directly to the 邕 古 古 古 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者 或者Miscellaneous (s_d·government) secret, this way knife I, resistance (sP_mg re bribe) and increase the overall thermal resistance value, the heat of the high-heat enthalpy fluid flowing through the forest in the tube is effectively transmitted, severely restricted Its maximum divergence is six-cavity __ force. In addition, the material is also designed to have the age of condensate ==.. 'Arranged 'Asia on the surface of the (four) and then set up (4), so that the navigation along the steam conduit guide In the body, in order to disperse the heat of the steam to a larger area of the inner wall of the cavity, the misplaced piece that is transmitted from the inner wall to the surface of the cavity is dissipated, but the latter part of the work depends on the larger part (four) The chamber (4) causes the vinegar to reduce the liquid to the evaporator and causes the evaporator to dry out. [Summary of the Invention] The Ministry of Technology solves the technical problem that the condenser can not effectively dissipate heat and cause the working fluid to be large, leaving the cavity (10) inconvenient to reflow. It is necessary to provide a kind of high-efficiency heat transfer along a single direction. Loop type heat exchange device. 1289190 The heat supply of the material includes the _ evaporation ^, - and a return conduit, the leek ... / fly λ into the cavity and filled with the working fluid, the workflow = but g = money (four) generate steam and through the steam The conduit reaches the condenser, and the rear w-axis trickle conduit is provided and the lion is provided with a heat transfer enhancement microstructure in the evaporation. The age-changing device passes through the cold-selling chamber of the county and transmits two "two structures" to provide a high heat absorption area of steam and a high heat-dissipating area. In addition to the conventional knowledge, the heat of the surrounding area of the fluid conduit is limited. In addition to the unfavorable factors that lead to an increase in the thermal resistance value, it is possible to overcome the conventional and excessively large condensate condensed in the condensation, and effectively == shouting from (4) bribery and hybridization. [Embodiment] For the loop type of the present invention, an ",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The side wall of the secretor 2Q is provided with an outlet 201 and a population 202 respectively at opposite positions, and the stalk steam conduit 3Q and the return conduit % are respectively connected to the outlet of the evaporator 2 and the inlet and the vessel, and the condensation with the distal end The heaters (10) are connected to each other to form a heat-conducting heat-conducting road. The steam conduit 3g and the return conduit can be a metal metal tubular member which is flexible and can be elastically designed with a narrow space which is existing in the product. Apply a flattening and bending process. As shown in the second and third figures, the condenser 4 is connected in series between the steam conduit and the return conduit 5G' and the condenser (four) ridge-cover and the second cover 44 are sealed to form a seal (four) 'shot The surface of the chamber is provided with a heat-dissipating column 45 (pmfm) to form a heat transfer enhancement microstructure in the cavity of the condensation, so that the condensation 40 has a high heat absorption area and a high dispersion __ Characteristics, improve the dispersive energy of the condenser (10), will enter the heat of the steam ship and cool it into a liquid, even if the steam enters the condensation 1289190
器40和其内的散熱面作直接接觸的熱交換，並通過該兩蓋板外部表 面上設置之散減片47將熱量散出’之後變成液態並藉由回流導管 50返回瘵發益20。為更加速冷凝液體回流，該回流導管5〇之管壁内 亦可設置毛細結構5〇1 ’其可由捲曲的金屬網構成，或者為粉末燒結 結構或微細溝槽結構，以提供回流液體進入蒸發器2〇的毛細力。為 使蒸汽進入較大冷凝器4〇時能與其中的熱傳增強微結構有較均句的 接觸’可將蒸汽導管30末段插入冷凝器4〇，並於其上設置流體喷灑 分配器301 ’該分配器3〇1之結構可採用沿導管伸入長度方向上開設 的密集的小孔，例如第三圖所示的蒸汽導管3〇末段插入冷凝器4〇的 i邊，而且小關朝冷凝器4G之另—側邊騎；同理，若縣汽 =管30末段插人冷難4Q的中央，如細騎示則其小孔可為朝 向兩側邊開設(或周緣均設小孔）。該冷凝器4〇腔體内靠近蒸汽導管 30夕及回流導管5G的—取置有毛域構，其可藉由鋪設緊實排列 =股:金屬絲或金屬網目而達成，該毛細結構Μ延伸至與回流導 =冷凝器40的連接處，並與回流導管5〇的毛細結構5〇1連通， 驅動在冷凝器40中已經冷凝的液體，避免過多的 於冷凝H 4G _空間，確保冷凝液順暢回流到蒸發器 ，有助於避免引發蒸發器㈣乾化縣。該冷凝㈣内的執傳增 :=與:凝器4〇的蓋板一體成型，使冷凝器4〇的設計可以在 很小的提供纽無似絲_積，不但可提昇轉 ι板上:=片47除採用片狀外’還可採用如 一併麥照紅圖至第七圖，該蒸發器2g形成 ^ 密^—密封的扁平勝該下蓋板则 2= 側為—薄板221而朝向蒸汽導管3。-側為-較 ^埶元件H該均熱板223的底部中央位置凸設一吸熱面奶供 “、兀件接觸傳熱。該腔體可藉由另—側壁上的填充管朋充入一定 9 1289190 量的工作流體(圖未示），待腔體内抽真空後即可將該填充管203密封 而構成4在閉腔體’該工作流體可以是冷媒、水、乙醇、曱醇、丙酮、 庚烷、氨水及其混合物。 該瘵發器20的腔體内設置有毛細結構23〇，可為由多層緊實堆疊 的金屬網緊密貼服於腔體的上蓋板21〇與下蓋板22〇内壁所形成的微 流道結構，該金屬網係由金屬線編織成交錯的網目，該毛細結構23〇 除了各層金屬網原有的網目所形成的微流道外，多層緊實的金屬網中 的各層之間亦形成更多的毛細微流道，為回流液體提供強大的毛細 力。當然，该毛細結構230除了為金屬網之外，還可為纖維束或者為 粉末燒結等結構。其中，該蒸發器2〇之腔體正對下蓋板22〇之薄板 221區域被毛細結構230充滿而形成液態介質之儲存區231，而腔體 正對下二板220之均熱板223區域則形成蒸發區232，部分毛細結構 230沿中部凸伸入蒸發區232内並涵蓋下蓋板22〇位於接近中心的吸 熱面225，另有部分毛細結構23〇沿蒸發器2〇的兩側凸伸入蒸發區 232内’致使該毛細結構230同時跨設於該儲存區231及蒸發區232， 如此使蒸發區232的毛細結構23〇在工作流體被蒸發後，便可以藉由 毛細力從儲存區231中將工作流體吸附過來而不斷產生汽化過程。另 外’該条發d 232未設置毛細結構的區域形成一用於容納$汽的蓄積 區233,該蓄積區233具有較大的流動空間，其與茱汽導 使產生的蒸汽能順利地流出蒸發器2〇並進入至蒸汽導管3〇中。另 外’於該蒸發器20的上、下蓋板21〇、22〇之外壁上對應腔體的儲存 區231所在的位置還設置有由複數散熱韓片構成的一散敎部25〇。 操作時，先將下蓋板22〇的吸熱面225與發熱元件的熱表面之間 塗上熱介面材質(Thermal lnterface MateriaIs)並使其緊密服貼使發熱 讀產生的熱量傳遞至下Μ 22〇的均熱板223中均勻分佈，再傳至' 腔體中由該均熱板223所涵蓋的蒸發區232内的毛細結構现，將薇 含於其中的工作流體迅速產生汽化，成為急速膨脹的蒸汽，由於奴 1289190 汽在儲存區231的流阻甚高’必然順利進入周邊不含毛細結構现且 I敞的畜積區233 ’接著在蒸汽壓力下進入蒸汽導管％到達冷凝器 40後釋放熱量後冷卻成液態，冷卻液體再經由回流導管5〇並藉由: 流導管50中的毛細結構501驅動回流至蒸發器％的儲存區加，然 後肠蒸發區232内的毛細結構23()將回流之冷卻液由該儲存區η 达至条發區232繼續進行循環散熱，從而形成一具有汽、液分離且確 保液進汽出以驅動-朝單方向進行高效率散熱的熱循環環路。 其中’該蒸發區232設置較厚的均熱板US，使回流之工作流體 得乂充刀吸,、.、/·^匕且可藉由设置薄板221於涵蓋大部份的液態介質 儲存區故’扼阻由下蓋板22〇之均熱板223將熱量傳導至薄板迎 上’有效遏止蒸發㊣232的熱量沿下蓋板220i接傳導到該儲存區况 的工作流體而使其升溫汽化之側向熱傳導效應，使均熱板223沿截面 傳遞至薄板221的熱量減少，避免儲存區231的溫度過高致使工作流 體在該區汽化而蓄積過多赌汽，藉此降低液態工作介質流入蒸發區 232毛細結構23〇中之流阻，而將工作液體及時補充至蒸發區说， 有效防止乾化現象發生。 由於當蒸發器20的均熱板223吸熱時，在接近蒸發區说的儲 存區231中之工作流體，亦會直接受到鄰近高温蒸發區232的蒸汽膨 脹溢散所造成的熱對流效應，導致上述接近加熱區的儲存區231中之 =作流體升溫汽化，並使蒸汽在儲存區况蓄積，增加液態介質進入 ，發區232的流阻，當液態介質無法被順利送達蒸發 232時將引發 洛發區232乾化現象。亦g卩，#有液態介質因吸熱而在蒸發區產生汽 錢象時，其蒸汽體積膨脹，隨著時間的增加其將漸漸往四周傳導開 〃此路脹£力將迫使⑨汽與液態介質之介面線將因時間的增加而往 儲存區231移動，直到儲存區231失去儲水作用，此時液態介質無法 =文且;丨關回到②發區232以提供蒸發所需之液態介質量，最後可能 裒路失放藉此’本發明在對應儲存區231所設置之散熱部 11The heat exchange between the device 40 and the heat dissipating surface therein is performed in direct contact, and the heat is dissipated by the diffuser 47 provided on the outer surface of the two cover plates, and then becomes liquid and returned to the 2020 by the return conduit 50. In order to accelerate the reflux of the condensed liquid, a capillary structure 5〇1' may be disposed in the wall of the return conduit 5', which may be composed of a crimped metal mesh, or a powder sintered structure or a fine groove structure to provide a reflux liquid to evaporate. 2 〇 capillary force. In order to allow steam to enter the larger condenser 4〇, there is a more uniform contact with the heat transfer enhancement microstructure therein. The end of the steam conduit 30 can be inserted into the condenser 4〇, and a fluid spray distributor can be disposed thereon. 301 'The structure of the distributor 3〇1 can adopt a dense small hole opened along the length direction of the duct. For example, the end of the steam conduit 3 shown in the third figure is inserted into the i side of the condenser 4〇, and is small. The other side of the Guanchao condenser 4G rides; similarly, if the county steam = the end of the tube 30 is inserted into the center of the cold 4Q, such as the fine ride, the small hole can be opened towards the sides (or the periphery) Set a small hole). The condenser 4 is disposed close to the steam conduit 30 and the return conduit 5G. The capillary structure is obtained by laying a tight arrangement = strand: wire or metal mesh, and the capillary structure is extended. To the junction with the reflux guide = condenser 40, and in communication with the capillary structure 5〇1 of the return conduit 5〇, driving the liquid that has been condensed in the condenser 40, avoiding excessive condensation of H 4G _ space, ensuring condensate Smooth return to the evaporator helps to avoid causing the evaporator (4) to dry up the county. The condensation in the condensation (4) is increased: = and the cover plate of the condenser 4〇 is integrally formed, so that the design of the condenser 4〇 can be provided in a small supply of no wire, which can not only improve the transfer board: = the sheet 47 can be used in addition to the sheet shape, and the same can be used as the same as the seventh sheet, the evaporator 2g is formed into a tight seal, and the lower cover is 2 = the side is - the thin plate 221 is oriented Steam conduit 3. - The side is - more than the element H. The central portion of the bottom plate of the heat equalizing plate 223 is provided with a heat absorbing surface for "heat transfer." The cavity can be filled with a filling tube on the other side wall. 9 1289190 working fluid (not shown), after filling the vacuum in the cavity, the filling tube 203 can be sealed to form 4 in the closed cavity. The working fluid can be refrigerant, water, ethanol, sterol, acetone. , heptane, ammonia water and a mixture thereof. The cavity of the hair styling device 20 is provided with a capillary structure 23 〇, which can be closely attached to the upper cover 21 〇 and the lower cover of the cavity by a plurality of tightly stacked metal meshes. a microchannel structure formed by the inner wall of the plate 22, the metal mesh is woven into a staggered mesh by a metal wire, and the capillary structure 23 is a multi-layered solid metal except for the microchannel formed by the original mesh of each layer of the metal mesh. More capillary microchannels are also formed between the layers in the mesh to provide a strong capillary force for the reflux liquid. Of course, the capillary structure 230 may be a fiber bundle or a powder sintered structure in addition to the metal mesh. Wherein, the cavity of the evaporator 2 is facing the lower cover 2 The region of the thin plate 221 is filled with the capillary structure 230 to form the storage region 231 of the liquid medium, and the region of the uniform heat plate 223 of the cavity facing the lower plate 220 forms an evaporation region 232, and a portion of the capillary structure 230 protrudes in the middle portion. The evaporation zone 232 includes the bottom cover 22 〇 located near the center of the heat absorption surface 225, and a portion of the capillary structure 23 凸 protrudes into the evaporation zone 232 along both sides of the evaporator 2〇, so that the capillary structure 230 is simultaneously spanned. In the storage area 231 and the evaporation zone 232, the capillary structure 23 of the evaporation zone 232 is so that after the working fluid is evaporated, the vaporization process can be continuously generated by the capillary force to adsorb the working fluid from the storage zone 231. 'The area where the strip 232 is not provided with the capillary structure forms an accumulating area 233 for accommodating the vapor, and the accumulating area 233 has a large flow space, and the steam generated by the crucible vapor can smoothly flow out of the evaporator. 2〇 and enter the steam conduit 3〇. In addition, in the upper and lower covers 21〇, 22〇 of the evaporator 20, the storage area 231 corresponding to the cavity on the outer wall of the evaporator 20 is also provided with a plurality of heat-dissipating Korean films. One of the敎 〇 25〇. During operation, first apply the thermal interface material (Thermal lnterface MateriaIs) between the heat absorbing surface 225 of the lower cover 22〇 and the hot surface of the heating element, and make it closely fit to transfer heat generated by the heat reading. The heat transfer plate 223 of the lower crucible 22 均匀 is evenly distributed, and then transferred to the capillary structure in the evaporation zone 232 covered by the heat equalizing plate 223 in the cavity, and the working fluid contained in the vapor is rapidly vaporized. , becoming a rapidly expanding steam, because the slave 1289190 steam in the storage area 231 has a very high flow resistance 'inevitably smoothly enters the periphery without the capillary structure and the I open the livestock area 233 ' and then enters the steam conduit under steam pressure to reach the condensation After the device 40 releases the heat, it is cooled to a liquid state, and the cooling liquid is further passed through the return conduit 5 and is driven by the capillary structure 501 in the flow conduit 50 to return to the storage area of the evaporator, and then the capillary structure in the intestinal evaporation region 232. 23(), the recirculating cooling liquid is flown from the storage area η to the strip emission area 232 to continue to circulate heat, thereby forming a vapor and liquid separation and ensuring liquid inflow and outflow to drive - high efficiency heat dissipation in one direction Thermal cycling loop. Wherein the evaporation zone 232 is provided with a thicker heat equalizing plate US, so that the recirculating working fluid can be filled with a knife, ..., /, and can be provided by covering the majority of the liquid medium storage area by providing the thin plate 221 Therefore, the heat transfer plate 223 of the lower cover 22 将 conducts heat to the thin plate to meet the 'effectively suppressing the heat of the evaporation 232. The heat is vaporized along the lower cover 220i to the working fluid of the storage zone to be heated and vaporized. The lateral heat transfer effect reduces the heat transfer of the heat equalizing plate 223 along the cross section to the thin plate 221, avoiding the temperature of the storage area 231 being too high, causing the working fluid to vaporize in the area to accumulate excessive gambling steam, thereby reducing the inflow of the liquid working medium into the evaporation. The flow resistance in the area 232 capillary structure 23〇, and the timely filling of the working liquid to the evaporation zone, effectively prevents the occurrence of dryness. Since the working fluid in the storage zone 231 near the evaporation zone is also directly subjected to the heat convection effect caused by the steam expansion and overflow of the adjacent high temperature evaporation zone 232 when the heat equalizing plate 223 of the evaporator 20 absorbs heat, resulting in the above In the storage area 231 close to the heating zone, the fluid is heated and vaporized, and the steam is accumulated in the storage zone, and the flow of the liquid medium is increased, and the flow resistance of the hair zone 232 is increased. When the liquid medium cannot be smoothly delivered to the evaporation 232, the hair will be triggered. Area 232 is dry. Also, when there is a liquid medium that generates steam money in the evaporation zone due to heat absorption, its vapor volume expands, and as time increases, it will gradually conduct around the road. This road will force the 9 vapor and liquid medium. The interface line will move to the storage area 231 due to the increase of time until the storage area 231 loses the water storage effect, at which time the liquid medium cannot be returned to the second area 232 to provide the amount of liquid medium required for evaporation. Finally, the circuit may be misplaced by the heat dissipation portion 11 provided in the corresponding storage area 231 by the present invention.