M4J4921 五、新型說明： 【新型所屬之技街領域】 尤指一種具有内薄外厚的毛細結構 « 本創作關於一種扁平熱管 之扁平熱管。 【先前技術】 散熱裝置與f子產品的發展息息_。由於電子產品在運作 時’電路巾的統會因阻抗的影料產生不必要的触，如果料 熱此不能有效地排除*累積在電子產品内部的電子元件上，電子元 ^便有可為不斷升高的溫度而損壞。因此，散熱裝置的優劣影 響電子產品的運作甚矩。 目前’電子產品最常_散絲置是_將熱管的—端接觸會 產生二的電子7C件，另一端連接散熱鰭片，並以散熱風扇對散熱韓 鲁片進^散熱。-般而言，熱管主要分為圓形熱管以及扁平熱管。扁 .平熱管係由扁平中空管體、毛細結構以及工作流體組成。習知毛細 結構大多是經嶙結製程將金屬粉末燒結於圓形中空管體的内辟 -上1再由壓管等製程使圓形中空管體被壓製成扁平狀。-般而土言， 熱官^體厚度小於2毫米稱為超薄熱管，而大於2毫米則稱為薄 型熱管。惟，不論如何將熱管薄型化，其内部仍須預留足夠的空間 以供工作流體進行汽、液相變化，而熱管内部除了工作流體外，毛 細結構的形成更是影響管體内部空間的主要因素，尤其在薄型甚至 3 M434921 超薄熱管等内部㈣極度有_情況下，如何有效咖管體内部的 有限空間’已成為現今薄型化熱管的主要課題之—。 【新型内容】 本創作提供-種扁平熱管，其具有_外厚的毛細結構， 決上述之問題。 根據-實施例，本創作之扁平熱管包含—爲平中空管體以及— 毛細結構。騎中空管體具有―第—平直部、—第二平直部以及二 弧形部’二弧形部分別連接於第—平直部與第二平直部的二側。毛 細結構形成於扁平中线針，毛細結構具有—中間部以及二側邊 部’中間部位於第-平直部的_上，二側邊部位於二弧形部的内 壁上’巾間部的厚度小於二側邊部的厚度。 上述之毛細結射為錄燒結毛細結構、網狀毛細結構或複合 、〃所述本創作之毛細結構呈内薄外厚，以於扁平熱管之扁 平中^射喊單—蒸魏道，單—蒸氣通道的熱傳量較大，可 達到極佳的熱傳與回流效果。此外，由於毛細結構之#間部的厚度 小於一側邊部的厚度，當鑛、貼設於扁平鮮之扁平巾空管體的中 時毛、.田、構之中間部的熱阻較低’可有效增進熱傳效果。 1V1 斗 丄 1關於本創作之優點與精神可以藉由以下的創作詳述及所附 得到進一步的瞭解。 【實施方式】 =_ 1 _至第6圖’第丨圖為根據本創作—實施例之扁平 =之衣造方法的流糊，第2圖為_中空管體urn及類凸字形 二的Ϊ體圖’第3圖為類凸字形站棒12插入圓形中空管體1〇 圖為毛細結構14形成於有段差的容置空_中的 ;::ί5圖為_的類凸字形邮_中空管體10 扁平中二弟6圖為弟5圖中的圓形中空管體1G擠壓變形成 扁十中空官體10,的前視圖。M4J4921 V. New description: [New technology street area] Especially a capillary structure with inner and outer thickness « This work is about a flat heat pipe with a flat heat pipe. [Prior Art] The development of heat sinks and f sub-products is _. Since the electronic circuit is in operation, the circuit of the circuit will cause unnecessary contact due to the impedance of the shadow. If the heat is not effectively excluded from the electronic components accumulated in the electronic product, the electronic component can be continuously Damaged by elevated temperatures. Therefore, the advantages and disadvantages of the heat sink affect the operation of the electronic product. At present, the most common electronic product is the argon wire. The other end of the heat pipe will produce two electronic 7C pieces, and the other end will be connected with the heat-dissipating fins, and the heat-dissipating fan will heat the heat-dissipating Hanlu film. In general, heat pipes are mainly divided into circular heat pipes and flat heat pipes. The flat heat pipe is composed of a flat hollow pipe body, a capillary structure and a working fluid. Conventionally, the capillary structure is mostly obtained by sintering a metal powder into a circular hollow tubular body through a splicing process. The upper hollow tube is pressed into a flat shape by a pressure tube or the like. As a general rule, hot officials have a thickness of less than 2 mm and are called ultra-thin heat pipes, while those larger than 2 mm are called thin heat pipes. However, no matter how thin the heat pipe is, there must be enough space inside for the steam and liquid phase changes of the working fluid. In addition to the working fluid inside the heat pipe, the formation of the capillary structure is the main influence on the internal space of the pipe body. Factors, especially in the case of thin (or even 3 M434921 ultra-thin heat pipes, etc.), how to effectively limit the limited space inside the body has become the main subject of today's thinned heat pipes. [New content] This creation provides a flat heat pipe with a thick outer capillary structure that solves the above problems. According to an embodiment, the flat heat pipe of the present invention comprises - a flat hollow tubular body and - a capillary structure. The riding hollow tube has a "first straight portion, a second flat portion and a second curved portion". The two curved portions are respectively connected to the two sides of the first straight portion and the second straight portion. The capillary structure is formed on the flat center needle, the capillary structure has the middle portion and the middle portions of the two side portions are located on the first straight portion, and the two side portions are located on the inner wall of the two curved portions. Less than the thickness of the two side edges. The capillary jet described above is a recorded sintered capillary structure, a network capillary structure or a composite, and the capillary structure of the present invention is thin and thick inside, so as to be flat in the flat heat pipe, and the steamed Weidao, single- The heat transfer of the vapor channel is large, and excellent heat transfer and reflow effects can be achieved. In addition, since the thickness of the inter-section of the capillary structure is smaller than the thickness of one side portion, the thermal resistance of the middle portion of the hair, the field, and the structure is lower when the ore is attached to the flat tube of the flat fresh flat towel. 'It can effectively improve the heat transfer effect. 1V1 斗 丄 1 The advantages and spirit of this creation can be further understood by the following creation details and accompanying. [Embodiment] =_1_ to Fig. 6' is a flow paste according to the creation method of the present embodiment, and the second figure is a hollow tube body urn and a convex type II. Figure 3 shows the insertion of the convex-shaped station bar 12 into the circular hollow tube. The figure is that the capillary structure 14 is formed in the tolerance space _;:: ί5 is _-like convex shape Post_Hollow pipe body 10 Flat middle two brothers 6 picture is the front view of the circular hollow pipe body 1G in the figure 5 which is pressed to form a flat ten hollow body body 10.
圖式 、’執行步驟S1G ’提供―圓形巾空管體urn及-類凸字形 :、中類凸字形心棒12具有一扇形部120以及一突出部 12二突出部122自扇形部12〇突出，如第2圖所示。於此實施例 =出部_呈梯形。細，於另—實施例中，突出部⑵亦 0 K形或其它形狀，視實際應用而定。 ^著，執行步驟S12,職凸字戦、棒12插人_中空管體10, 以羽形部120抵接於圓形中空管體1G之内壁，且於突出部⑵ /、Ί官體1G的内壁之間形成—有段差的容置空間1。0。如第 3 ®斤τ有段差的容置空間1〇〇中間的厚度τι小於二側的厚度 5 M434921 接著’執行步驟S14，於有段差的容置空間100中形成一毛細 結構14，其中毛細結構14具有一中間部140以及二側邊部142，如 第圖所示毛細結構14之中間部140的厚度即等於有段差的容置 f間100中間的厚度τι，且毛細結構14之二側邊部142的厚度即 等於有段差的容置空間_二侧的厚度T2。因此，毛細結構14之 中間。P 140的厚度T1小於二側邊部142的厚度τ2。於此實施例中， 、-…構4可為粉末燒結毛細結構、網狀毛細結構或複合 士 構’視實際應用而定。 '' π 接著，執仃步驟S16 ’將類凸字形怒棒12自圓形中空管體1〇 抽出’如第5圖所示。 ^最後’執行步驟S18，使圓形中空管體ig擠壓變形成一扁平中 :官體1以完成如第6圖所示之扁平熱管1的製造。於實際應用 1古扁平中空管體⑽中填充有工作流體（未顯示），例如水或其它 ^低黏滞係數之跡在圓形中空管體1〇賴變形成扁平中空管 體戦’扁平中线體lG，具有_第—平直部服、一第二平直部 104以及二弧形部1〇6，其中二 形。卩106分別連接於第一平直部 02，、第一平直部1〇4的二側。如 弟6圖所示，毛細結構14之中間 4 140位於第一平直部1〇2的内壁 \ΑΊ Ι^τΑ-κ 且毛細結構14之二側邊部 142位於二弧形部1〇6的内壁上 使仲毛細結構14呈U字形。此外， 绖擠壓邊形後的中間部14〇的厚度 夂u仍然小於經擠壓變形後的二 M434921 側邊部l42的厚度ττ。由於毛細結 扁平熱管i之扁平中空管體1〇，中可料…=私的U字形結構， 气.產.#7似 /成早瘵氣通道108,單一篡 * H ,、”、、傳4較大，可達職佳的熱傳與畔效果。…、 此外，在圓形中空管體1〇漏變形成扁平中空管體 細結構14之二側邊部⑷抵接 爰毛 的内壁。因此，毛_士接,， 體1〇之弟二平直部腦 ，而言，且有支^果 邊部142對於扁平中空管諸 ► d果，可防止4平中空管體10'因受>1祕m 需說明的是，只要毛細結構14之二側邊部142的至=1、 於扁平中空她σ之第二平直部 ^之^接 10,而言，即且_扁平中空管體 有支以果，不以第6 _示的實施例為限。 h閱第7圖，第7圖為第6圖中的 上的示意圖。如第7图％— …g 1貼汉於熱源3 第-平直箱的下5’由；^將熱源3貼敦於扁平熱管1之 打小於二侧邊部14之中間部140的厚度 —平直部102的下方由又 田…源3貼设於扁平熱管1之第 低，可有效增進_效=’毛細結構14之中間部14G的熱阻較 管之==形薄外厚，崎熱 大，可_極佳的熱傳與回w早―通道的熱傳量較 的厚度小於二側邊部的厚;;^。此外，由於毛細結構之中間部 度’當熱源貼設於扁平熱管之扁平中空管 體的令間時，毛細結構之中間部的恤較低，可有效增進熱傳效果。 、斤述僅為本創作之較佳實施例，凡依本創作申請專利範圍所做 之均等變化與_ ’皆應屬本創狀涵蓋範圍。 【圖式簡單說明】 第1麟根據本創作—實補之扁平熱管之製造方法的流程 第2圖為圓形中空管體以及類凸字形芯棒的立體圖。 第3圖為類凸子形芯棒插人圓形中空管體的前視圖。 結構形成於有段差的容置空間巾_視圖。 θ 4圖中醜凸字形芯棒自圓形中空管體抽出後的前 〇 第6圖為第5圖 前視圖。 中的圓形中二管體擠壓變形成扁平中空管體的 弟7圖為第6圖中的4平熱管貼設於熱源上的示竟圖 【主要元件符號說明】 1 扁平熱管 10 圓形中空管體 12 類凸字形芯棒 100 有段差的容置空間 104 弟一平直部 3 熱源 10' 扁平中空管體 14 毛細結構 102 .第一平直部 106 弧形部 M434921 108 蒸氣通道 120 扇形部 122 突出部 140 中間部 142 側邊部 T 卜 Τ2、ΊΤ、 厚度 Τ2'The figure, 'execution step S1G' provides a circular towel empty tube body urn and a convex type: the medium convex type core rod 12 has a scalloped portion 120 and a protruding portion 12 two protruding portions 122 protrude from the scalloped portion 12 As shown in Figure 2. In this embodiment, the output _ is trapezoidal. Thin, in another embodiment, the protrusion (2) is also 0 K-shaped or other shape depending on the practical application. ^, step S12 is performed, the embossing 戦, the rod 12 is inserted into the hollow tube body 10, and the feather portion 120 abuts against the inner wall of the circular hollow tube body 1G, and at the protruding portion (2) /, eunuch The inner wall of the body 1G is formed with a stepped accommodation space of 1.0. For example, the thickness τι in the middle of the accommodating space 1 段 is smaller than the thickness of the two sides. 5 M434921 Then, in step S14, a capillary structure 14 is formed in the accommodating space 100 having a step, wherein the capillary structure 14 has an intermediate portion 140 and two side portions 142. The thickness of the intermediate portion 140 of the capillary structure 14 as shown in the figure is equal to the thickness τι between the intervening portions f of the stepped portion f, and the two sides of the capillary structure 14 The thickness of the portion 142 is equal to the thickness T2 of the two sides of the accommodating space having the step. Therefore, the middle of the capillary structure 14 is. The thickness T1 of the P 140 is smaller than the thickness τ2 of the two side portions 142. In this embodiment, the structure 4 may be a powder sintered capillary structure, a network capillary structure or a composite structure depending on the practical application. '' π Next, the step S16' is performed to extract the convex-like anger-like rod 12 from the circular hollow tubular body 1' as shown in Fig. 5. Finally, step S18 is performed to squash the circular hollow tube body ig into a flat shape: the body 1 to complete the manufacture of the flat heat pipe 1 as shown in Fig. 6. In practical application, the ancient flat hollow tube body (10) is filled with a working fluid (not shown), such as water or other low viscosity coefficient traces in the circular hollow tube body to form a flat hollow tube body. The flat center line body lG has a _ first straight portion, a second flat portion 104, and two curved portions 1 〇 6, wherein the shape is two. The crucibles 106 are respectively connected to the first straight portion 02 and the two sides of the first straight portion 1〇4. As shown in Fig. 6, the middle portion 4140 of the capillary structure 14 is located at the inner wall of the first straight portion 1〇2, and the two side portions 142 of the capillary structure 14 are located at the two curved portions 1〇6. The inner capillary wall has a U-shaped secondary structure 14 on the inner wall. Further, the thickness 夂u of the intermediate portion 14A after the squeezing of the ridge is still smaller than the thickness ττ of the side portion l42 of the two M434921 after the extrusion deformation. Due to the flat hollow tube body of the capillary flat heat pipe i, it can be materialized...=private U-shaped structure, gas.production.#7like/early early gas passage 108, single 篡* H , ,”, Passing 4 is larger, and it can reach the good heat transfer and the effect of the side.... In addition, the circular hollow tube body 1 leaks to form the flat hollow tube body fine structure 14 and the two side portions (4) abut the bristles Therefore, Mao Shishi, the body of the body of the two brothers, the straight brain, and the side of the fruit 142 for the flat hollow tube ► d fruit, can prevent 4 flat hollow tube The body 10' is subject to the following: As long as the two side portions 142 of the capillary structure 14 are =1, and the second flat portion of the flat hollow σ is connected to 10, That is, the _flat hollow tube body has a support effect, and is not limited to the embodiment shown in the sixth embodiment. h See Fig. 7, and Fig. 7 is a schematic view on the upper side of Fig. 6. As shown in Fig. 7 ...g 1 affixed to the heat source 3, the lower 5' of the first straight box; the heat source 3 is attached to the thickness of the flat portion 1 of the flat heat pipe 1 which is smaller than the middle portion 140 of the two side portions 14 - below the straight portion 102 From the field...the source 3 is attached to the lower part of the flat heat pipe 1 and may have The heat resistance of the intermediate portion 14G of the capillary structure 14 is thinner than the thickness of the tube == thin, and the heat is large, and the heat transfer and the back w are early. The heat transfer amount of the channel is smaller than the thickness. The thickness of the two side portions;; ^. In addition, due to the middle portion of the capillary structure 'When the heat source is attached to the flat hollow tube of the flat heat pipe, the middle portion of the capillary structure is lower, which is effective Improve the heat transfer effect. The description of the heat is only the preferred embodiment of this creation. Any change in the scope of patent application according to this creation and _ ' should be covered by this creation. [Simplified illustration] According to the flow of the method for manufacturing the flat heat pipe of the present invention, the second figure is a perspective view of a circular hollow pipe body and a convex-like mandrel. Fig. 3 is a convex-shaped mandrel inserted into a circular hollow Front view of the tube body The structure is formed in the accommodating space towel _ view with a step. The front view of the ugly convex shape core rod extracted from the circular hollow tube body in Fig. 4 is a front view of Fig. 5. The middle of the circular two-tube body is transformed into a flat hollow tube body. The figure 7 is the four flat heat pipes in Fig. 6 attached to The heat source on the map [main components symbol description] 1 flat heat pipe 10 round hollow pipe body 12 type convex mandrel 100 has a stepped accommodation space 104 brother one straight part 3 heat source 10' flat hollow pipe body 14 Capillary structure 102. First straight portion 106 Curved portion M434921 108 Vapor channel 120 Sector 122 Projection 140 Intermediate portion 142 Side portion T Dimensions 2, ΊΤ, thickness Τ 2'