TWM400011U - Heat pipe - Google Patents

Heat pipe Download PDF

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Publication number
TWM400011U
TWM400011U TW99215051U TW99215051U TWM400011U TW M400011 U TWM400011 U TW M400011U TW 99215051 U TW99215051 U TW 99215051U TW 99215051 U TW99215051 U TW 99215051U TW M400011 U TWM400011 U TW M400011U
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Taiwan
Prior art keywords
heat
heat pipe
outer casing
side wall
item
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TW99215051U
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Chinese (zh)
Inventor
Yu-Che Tsai
Original Assignee
Thertek Corp
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Application filed by Thertek Corp filed Critical Thertek Corp
Priority to TW99215051U priority Critical patent/TWM400011U/en
Publication of TWM400011U publication Critical patent/TWM400011U/en

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  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Description

M400011 五、新型說明: 【新型所屬之技術領域】 本創作涉及一種熱管,且特別是一種可以提供蒸氣較多流動空 間的熱管。 【先前技術】 ,熱管是一種熱傳導媒介體,以利於預定物品散熱之管體結構, 熱官的傳熱效率良秀直接關係到散熱的效能。此外,這幾年來, 資Λ科技的進步速度可以說是相當快速,也由於中央處理器的運 作V員率相g向,故連Τ產生的廢熱也相當大。因此,便有薇商引 進熱官以協助中域理n進行散熱。上述的鮮是設置在散熱片 與中央處理m t央處理ϋ所產生的廢熱倾熱管的一側 (即:吸熱側)内的液體所吸收,液體吸熱蒸發後,蒸發的蒸氣 會因為壓力差的原因而往熱管的另一側(即:散熱側)移動,並 於散熱側上凝結後,再回流至熱管的吸熱側。 現在傳統常用的熱管主要可分成三種態樣: -、在熱官内壁設置的溝槽,溝槽的特性會產生毛細力, ϊίίΐ的深度便會引響毛細力的強弱。然而,溝槽若加工^度 ^木_等致刀具快速損壞或管壁破損等問題。 無溝槽的圓形管内壁组人—毛細結構,即在圓形管内辟 銅粉的方式形成毛細結構,燒結層是保持著均一的厚 t、fΓίϊ層具有—定的厚度’故#熱管被打錢,其内部装 乳通逼必然減少’從而影響熱管的散熱能力。 ' 管的組人—佩細結構,即在圓形 一 、,賴存在於熱管的吸熱端,也就是賴管的散敎 3 毛細結構。⑽,如此—來,當鮮處於非水平狀態而 ^政熱端錄吸熱端下㈣,凝結的㈣關散熱端的速度便 θ f5牛低,這樣會降低熱管其吸收熱量的能力。 所以’針對上述已知熱管_部之散熱結構設計所存在的問題 點’如何開發—種更具理想實用性、效果更加完備之熱管,實為 本領域具㈣常知識者彡貞再純努力思索突破之目標與方向。、 【新型内容】 ' 本創作涉及-種熱管,特點:在熱管管内壁上有部分區域是沒 有毛細結構’即有部分區域是沒有銅粉或_。而沒有毛㈣構 ”部分是位於鮮的散熱端。這樣可以增加鮮在打扁後的内。部 洛瑕1通道之空間,有利於蒸氣流通及提高熱管的散熱。 士根據上述目的與其他目的,本創作提供一種熱管,其包括一外 ^體與-毛細結構,外殼體是呈封_狀態,且外殼體内部填充 有工作流體,而毛細結構形成於外殼體的内側壁上。其中,於外 ,體的内側壁靠近發熱源的—側上,毛細結構是塗布於整個内側 壁表面,於外殼體的内側壁遠離發熱源的一側上,毛細結構僅分 布在靠近發熱源的部分區域上。 刀 於上述的熱管中,毛細結構為一燒結層。其中,毛細結構是由 金屬粉末所燒結而成,且金屬粉末例如為銅粉。 疋 編織 於上述的熱管中,毛細結構是由多根銅絲或是由多根铜絲 成銅網所疊合而成。 … 於上述的熱管中’外殼體的内側壁上形成有多個溝槽。 於上述的熱管中,外殼體呈圓管狀或扁管狀。 由於外殼體的内側壁遠離發熱源的一側上,僅有部分區域形成 M400011 有燒結層’故當熱管製作成扁平狀時’其内部能提供較大的空間 以供蒸氣流動。而且,在外殼體的内側壁靠近發熱源的一側上’ 其燒結層是塗布於整個内側壁表面,故當熱管處於非水平狀態而 使其散熱端位於吸熱端下方時,凝結的液體仍可藉由靠近發熱源 一側上的燒結層而回流至吸熱端,而使熱管保持一定的吸收熱量 之能力。 ^ • 為讓本創作的上述目的、特征和優點更能明顯易懂,下文將以 實施例並配合所附圖不,作詳細說明。 _ 【實施方式】 請芩閱圖1,圖1繪示出本創作之熱管的第一實施例之熱管沿 著水平方向的剖面圖。此熱管1 〇 〇是沿著其中一方向A做延伸, 其兩端分別為散熱端120與吸熱端no,且熱管10〇的吸熱端u〇 是設置於一發熱源B上,而散熱端120則是與其他散熱裝置(未 繪示,例如:散熱片、風扇)相結合。熱管1〇〇包括一外殼體13〇 與一燒結層140,該燒結層140形成於外殼體13〇的内側壁上。其 中,外殼體130是呈封閉的狀態,也就是說外殼體13〇的内部是 φ與外界環境相隔離的,且外殼體的内部填充有工作流體,此工作 流體是位於燒結層140的孔隙中。在本實例中,工作流體為水, 但本領域具有通常知識者可將其替換為酒精或其他種類的工 體。 机 請同時參照圖1、圖2,圖2繪示出了本創作之第一實施例之 熱管之加熱端的剖面側視圖。於外殼體13〇的環繞方向s上, 燒結層140的厚度是呈均勻分布,當發熱源B在運作時,其所放 出的熱量會透過外殼體130而被位於燒結層140内部的工j乍流體 所吸收。吸收熱量後,工作流體蒸發進入熱管1〇〇的内部通 間丨50中’並因為壓力差的緣故而從吸熱端n〇往散熱端j㈤$ M400011 動,蒸發後的工作流體於散熱端〗20散熱後,會凝結為液體而進 入燒結層140中,而凝結後的工作流體會通過燒結層〗4〇的毛細 力而回流至吸熱端110。 ' 請參閱圖3,圖3繪示出了本創作之第一實施例的熱營之散 熱端的剖面側視圖。凝結後的工作流體會通過燒結層】4〇的毛 細力而回流至吸熱端110。而位於外殼體丨30之内側壁的上方部分 沒有設置燒結層的原因在於減低熱阻,使蒸發後的工作流體能以 較快的速度將熱量排放到外部並進行凝結。 由於外殼體丨30的内側壁遠離發熱源B的一側上,僅有部分區 域(靠近發熱源B的區域)形成有燒結層〗4 〇,故當熱管製作成扁平 狀時,其内部能提供較大的空間以供蒸氣流動。而且,在外殼體 130的内側壁靠近發熱源b的一側上,其燒結層丨4〇是塗布於墊 個内側壁表面,故當熱管處於非水平狀態而使其散熱端】2〇位於 吸熱端110下方時,凝結的液體仍可藉由靠近發熱源B 一側上的 燒結層140而回流至吸熱端11〇,而使熱管1〇〇保持一定的吸收熱 量之能力。 此外,熱管的製造者也可在外殼體的内壁上開設多個溝槽,以 增加熱管的散熱效率。請參照圖4與圖5,圖4繪示出了本創作之 第二實施例之熱管之加熱端的剖面側視圖,圖5繪示出了本創 作之第二實施例的熱管之散熱端的剖面側視圖。在本實例中, 熱官包括一外殼體260與一燒結層270,其中外殼體260的内側壁 ^形成有多個溝槽280,這些溝槽280也可提供毛細力,故可增加 凝結液體的回流速度。 此外,在上述的實施例中,熱管的外殼體是呈扁管狀,此類型 的熱管適於應用在體型較輕薄的電子裝置(例如:筆記本電腦) M400011 中,但本·祕核常知識者可將纽設 圖6所示的熱管3〇〇之外殼體310為圓管狀。uw 在第-實^鮮二實施财,毛纟哗_燒簡,但本領 成具有通W識者可以將其改為其他鶴狀㈣構,例如··銅 f = f。請參照圖7 ’圖7繪示出銅網的示意圖,此細400 根銅絲400a相互重疊編織而成,毛細結構也可通過疊合多 層的銅網4〇〇而成,進而使毛細結構整_毛細力增大。 本創作以實例說明如上,然其並非用以限 利要求。其專利保細應當以權利要求書及== 有通常知識者’在不脫離本專利精神或範_,:作 白=動或修改,均屬於本創作所揭示的精神下完成的等= ,又计’且應包含在_要求#巾的的制縣範㈣。交或 圖式簡單說明】 向的剖面圖 圖1繪示出本創作之熱管的第一實施例之熱管沿 HI。 ^'來平方 側視圖 圖2繪不出了本創作之第一實施例之熱管之加熱蠕 的剖面 的剖 圖3繪示出了本創作之第一實施例的熱管之散熱端 面側視圖。 圖4繪不出了本創作之第二實施例之熱管之加埶 側視圖。 、’的。1丨面 ㈣^繪示出了本辦1二實施例的熱管之散熱端的剖 圖6繪示出本創作的第三實施例的熱管。 圖7繪示出銅網的示意圖。 7 M400011 【主要元件符號說明】 100 :熱管 110 :吸熱端 120 :散熱端 130、260 :外殼體 140、270 :燒結層 150 :内部通道空間 280 :溝槽 400 :銅網 400a :銅絲 B :發熱源 A :方向 S :圍繞方向M400011 V. New description: [New technical field] This creation relates to a heat pipe, and in particular to a heat pipe which can provide more steam flow space. [Prior Art] The heat pipe is a heat conduction medium to facilitate the heat dissipation of the pipe body structure. The heat transfer efficiency of the heat officer is directly related to the heat dissipation performance. In addition, over the past few years, the speed of progress of Ziyu Technology can be said to be quite fast, and because the operating capacity of the central processing unit is the same, the waste heat generated by the company is also quite large. Therefore, Weishang introduced a hot official to assist Zhongdi Li to dissipate heat. The above-mentioned fresh is absorbed by the liquid in the side of the heat-dissipating heat pipe which is generated by the heat sink and the central processing mt central processing enthalpy (ie, the heat absorbing side), and the vapor evaporated by the liquid absorbs heat due to the pressure difference. The other side of the heat pipe (ie, the heat dissipating side) moves and condenses on the heat dissipating side, and then flows back to the heat absorbing side of the heat pipe. Nowadays, the commonly used heat pipes can be mainly divided into three kinds of aspects: - The grooves provided on the inner wall of the heat official, the characteristics of the grooves will generate capillary forces, and the depth of the ϊίίΐ will ignite the strength of the capillary forces. However, if the groove is processed, the tool is quickly damaged or the pipe wall is damaged. The inner wall of the non-grooved circular tube is a capillary structure, that is, a capillary structure is formed by forming a copper powder in a circular tube, and the sintered layer maintains a uniform thickness t, and the thickness of the layer has a certain thickness. Playing money, its internal milk is forced to reduce 'and thus affect the heat dissipation capacity of the heat pipe. The group of tubes - the perforated structure, that is, in the circular shape, is located at the endothermic end of the heat pipe, that is, the dilated tube 3 capillary structure of the tube. (10) In this way, when the fresh is in a non-horizontal state and the heat is recorded at the end of the heat (4), the speed of the condensed (four) heat-dissipating end is θ f5, which reduces the heat pipe's ability to absorb heat. Therefore, 'how to develop the problem of the heat-dissipation structure design of the above-mentioned known heat pipe _ section' is how to develop a heat pipe that is more ideal and practical, and has more complete effects. It is actually a knowledgeable person in the field. The goal and direction of breakthrough. [New content] 'This creation involves a kind of heat pipe. Features: There is no capillary structure on the inner wall of the heat pipe. There is no copper powder or _ in some areas. The part without the hair (four) structure is located at the fresh heat-dissipating end. This can increase the freshness in the flattened area. The space of the 1st channel of the Luoluo is beneficial to the circulation of steam and the heat dissipation of the heat pipe. The present invention provides a heat pipe comprising an outer body and a capillary structure, the outer casing is in a sealed state, and the outer casing is filled with a working fluid, and the capillary structure is formed on the inner side wall of the outer casing. Further, the inner side wall of the body is adjacent to the side of the heat source, and the capillary structure is applied to the entire inner side wall surface on the side of the inner side wall of the outer casing away from the heat source, and the capillary structure is only distributed on a portion close to the heat source. In the above heat pipe, the capillary structure is a sintered layer, wherein the capillary structure is sintered by metal powder, and the metal powder is, for example, copper powder. The weir is woven in the above heat pipe, and the capillary structure is composed of a plurality of The copper wire is formed by laminating a plurality of copper wires into a copper mesh. In the above heat pipe, a plurality of grooves are formed on the inner side wall of the outer casing. The outer casing is round or flat. Since the inner side wall of the outer casing is away from the heat source side, only part of the area forms a sintered layer of M400011. Therefore, when the heat pipe is made flat, the interior can provide a large space. For the vapor to flow. Moreover, on the side of the inner side wall of the outer casing close to the heat source, the sintered layer is applied to the entire inner wall surface, so when the heat pipe is in a non-horizontal state and the heat radiating end is below the heat absorbing end, The condensed liquid can still be returned to the endothermic end by the sintered layer on the side close to the heat source, so that the heat pipe maintains a certain ability to absorb heat. ^ • To make the above objects, features and advantages of the creation more obvious The following is a detailed description of the embodiments and the accompanying drawings. _ [Embodiment] Please refer to FIG. 1 , which illustrates the heat pipe of the first embodiment of the present heat pipe along the horizontal direction. The heat pipe 1 〇〇 is extended along one of the directions A, the two ends of which are respectively the heat radiating end 120 and the heat absorbing end no, and the heat absorbing end u 热 of the heat pipe 10 〇 is disposed on a heat source B. The heat dissipation end 120 is combined with other heat dissipating devices (not shown, for example, a heat sink, a fan). The heat pipe 1 includes an outer casing 13 and a sintered layer 140 formed on the outer casing 13 On the inner side wall, wherein the outer casing 130 is in a closed state, that is, the inner portion of the outer casing 13 is φ separated from the external environment, and the inside of the outer casing is filled with a working fluid, and the working fluid is located in the sintering. In the pores of the layer 140. In the present example, the working fluid is water, but those skilled in the art can replace it with alcohol or other kinds of workers. Please refer to FIG. 1 , FIG. 2 and FIG. 2 simultaneously. A cross-sectional side view of the heating end of the heat pipe of the first embodiment of the present invention is obtained. In the circumferential direction s of the outer casing 13〇, the thickness of the sintered layer 140 is uniformly distributed, and when the heat source B is in operation, it is discharged. The heat is absorbed by the outer casing 130 through the fluid located inside the sintered layer 140. After absorbing heat, the working fluid evaporates into the internal passage 丨50 of the heat pipe 1' and is moved from the heat absorbing end n to the heat radiating end j(5)$M400011 due to the pressure difference, and the evaporated working fluid is at the heat radiating end. After dissipating heat, it will condense into a liquid and enter the sintered layer 140, and the condensed working fluid will flow back to the endothermic end 110 through the capillary force of the sintered layer. Referring to Fig. 3, Fig. 3 is a cross-sectional side view showing the heat radiating end of the heat camp of the first embodiment of the present invention. The condensed working fluid is returned to the endothermic end 110 by the capillary force of the sintered layer. The reason why the sintered layer is not provided in the upper portion of the inner side wall of the outer casing 30 is to reduce the thermal resistance so that the evaporated working fluid can discharge heat to the outside and condense at a relatively high speed. Since the inner side wall of the outer casing 30 is away from the side of the heat source B, only a part of the area (the area close to the heat source B) is formed with a sintered layer, so that when the heat pipe is flat, the inside can be provided. Larger space for steam to flow. Moreover, on the side of the inner side wall of the outer casing 130 close to the heat source b, the sintered layer 涂布4〇 is applied to the inner side wall surface of the mat, so when the heat pipe is in a non-horizontal state, the heat radiating end thereof is located at the endothermic end. When the end 110 is below, the condensed liquid can still be returned to the endothermic end 11〇 by the sintering layer 140 on the side close to the heat source B, so that the heat pipe 1 〇〇 maintains a certain ability to absorb heat. In addition, the manufacturer of the heat pipe can also open a plurality of grooves on the inner wall of the outer casing to increase the heat dissipation efficiency of the heat pipe. Referring to FIG. 4 and FIG. 5, FIG. 4 is a cross-sectional side view showing the heating end of the heat pipe of the second embodiment of the present invention, and FIG. 5 is a cross-sectional side view showing the heat dissipating end of the heat pipe of the second embodiment of the present invention. view. In this example, the thermal officer includes an outer casing 260 and a sintered layer 270, wherein the inner side wall of the outer casing 260 is formed with a plurality of grooves 280, which also provide capillary forces, thereby increasing the amount of condensed liquid. Return speed. In addition, in the above embodiments, the outer casing of the heat pipe is in a flat tubular shape, and the heat pipe of this type is suitable for use in a thin and light electronic device (for example, a notebook computer) M400011, but the person skilled in the present invention may The outer casing 310 of the heat pipe 3 shown in FIG. 6 is a circular tubular shape. Uw implements the money in the first - real ^ two, the 纟哗 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Referring to FIG. 7 and FIG. 7 , a schematic diagram of a copper mesh is shown. The fine 400 copper wires 400 a are woven by overlapping each other, and the capillary structure can also be formed by laminating a plurality of layers of copper mesh, thereby making the capillary structure complete. _The capillary force increases. This creation is described by way of example, but it is not intended to be limiting. The patents of the patents should be in the claims and == those who have the usual knowledge 'without the spirit of this patent or the model _,: white = move or modify, are all done under the spirit of this creation, etc., and It should be included in the county's (4). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a heat pipe along the HI of the first embodiment of the heat pipe of the present invention. ^' squaring side view Fig. 2 is a cross-sectional view showing a heat wicking section of the heat pipe of the first embodiment of the present invention. Fig. 3 is a side view showing the heat radiating end face of the heat pipe of the first embodiment of the present invention. Fig. 4 is a side elevational view showing the twisting of the heat pipe of the second embodiment of the present invention. ,'of. 1(4) is a cross-sectional view showing the heat dissipating end of the heat pipe of the first embodiment of the present invention. FIG. 6 is a view showing the heat pipe of the third embodiment of the present invention. Figure 7 depicts a schematic of a copper mesh. 7 M400011 [Description of main components] 100: Heat pipe 110: Heat absorbing end 120: Heat radiating end 130, 260: Outer body 140, 270: Sintered layer 150: Internal passage space 280: Groove 400: Copper mesh 400a: Copper wire B: Heat source A: direction S: around direction

Claims (1)

六、申請專利範圍: L ’設置於—發熱源上,該熱管包括: 有工作Li體及該外殼體是呈封閉的狀態,且該外殼體内部填充 t細結構’該毛細結獅成於該外殼體的内側壁上; 是塗布於整内側壁靠近發熱源的—側上,該毛細結構 個内侧壁表面,於該外殼體的内側壁遠離發熱源的一 "毛細結構僅分布在靠近該發熱源_分區域上。 -燒^°申請專職㈣1項所述之熱管,其巾該毛細結構包括 屬粉㈣2顿狀鮮,射練結層是由金 粉。4.如巾請專職圍第3項所述之熱管,其中該金屬粉末為銅 根鋼範㈣2項舰之^,料練闕是由多 6.如申請專利範圍第2項所述之熱管,|中哕庐壯 根銅絲編織成的銅網所4合而成。 〃中以_層疋由夕 ^如_請專利範圍第丨項、第2項或第3項所述之熱管,其 ;4外殼體的内侧壁上形成有多個溝槽。 狀。8·如申請專利範圍第丨項所述之熱管,其中該外殼體呈圓管 狀。9·如申請專繼E第1項所述之鮮,其中該外殼體呈扁管Sixth, the scope of application for patents: L 'disposed on the heat source, the heat pipe includes: a working Li body and the outer casing is in a closed state, and the outer casing is filled with a t-structure] the capillary lion is formed The inner side wall of the outer casing is coated on the side of the inner side wall adjacent to the heat source, and the inner wall surface of the capillary structure is disposed on the inner side wall of the outer casing away from the heat source. Heat source _ sub-region. - Burning ^ ° Apply for full-time (4) The heat pipe mentioned in 1 item, the capillary structure of the towel includes the powder (4) 2 pieces fresh, and the shot layer is made of gold powder. 4. For the towel, please refer to the heat pipe mentioned in Item 3, wherein the metal powder is the copper root steel fan (4) 2 ships, and the material is more than 6. The heat pipe according to item 2 of the patent application scope, | The copper mesh woven into the copper wire of Zhongqiang Zhuanggen is made up of 4 pieces. The heat pipe described in the second aspect or the third aspect of the invention is formed by a plurality of grooves formed on the inner side wall of the outer casing. shape. 8. The heat pipe of claim 2, wherein the outer casing is in the form of a circular tube. 9. If applying for the freshness described in item E of item E, wherein the outer casing is a flat tube
TW99215051U 2010-08-06 2010-08-06 Heat pipe TWM400011U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
TWM400011U true TWM400011U (en) 2011-03-11

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