TWM578372U - Heat pipe with composite structure - Google Patents

Heat pipe with composite structure Download PDF

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TWM578372U
TWM578372U TW108201624U TW108201624U TWM578372U TW M578372 U TWM578372 U TW M578372U TW 108201624 U TW108201624 U TW 108201624U TW 108201624 U TW108201624 U TW 108201624U TW M578372 U TWM578372 U TW M578372U
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heat pipe
item
capillary structure
patent application
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TW108201624U
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陳志偉
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雙鴻科技股份有限公司
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Publication of TWM578372U publication Critical patent/TWM578372U/en

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Abstract

A heat pipe with composite structure is provided. The heat pipe comprises a working fluid, a first capillary structure, a second capillary structure and a tube body. The first capillary structure has a smooth surface. The second capillary structure has a plurality of grooves. The tube body is used for accommodating the working fluid. The tube body includes a first section and a second section. The first section has a first inner wall. The first capillary structure is formed on the first inner wall. The second section is connected with the first section. The second section has a second inner wall. The grooves are formed on the second inner wall corresponding to an axial direction.

Description

複合式熱管 Compound heat pipe

本創作是有關於一種複合式熱管,尤其是一種具有兩種不同毛細結構的複合式熱管。 This creation is about a composite heat pipe, especially a composite heat pipe with two different capillary structures.

一般的散熱設計除了以氣冷式、水冷式機制或是以特殊材質的散熱單元進行貼附而可採用傳導或對流等不同方式進行降溫之外,熱管(或可稱熱導管)(Heat Pipe)亦是一種有效而常見的散熱設計。 In addition to the general heat dissipation design, in addition to the air-cooled, water-cooled mechanism or the heat dissipation unit of a special material, it can be cooled by different methods such as conduction or convection. Heat pipes (or heat pipes) (Heat Pipe) It is also an effective and common heat dissipation design.

所謂的熱管,是一種中空而兩端封閉的金屬管體,且於管體的腔內填充有適量的一工作流體。熱管的散熱原理是藉由工作流體的二相變化,也就是工作流體會先在管體一端的一加熱段所相應的熱源上進行吸熱形成汽化,而從液態相變成氣態,並於管體內擴散與傳遞熱量至管體另一端的一冷凝段,再透過相關的外部散熱機制進行熱交換而將熱量排出。 The so-called heat pipe is a hollow metal pipe body closed at both ends, and the cavity of the pipe body is filled with an appropriate amount of a working fluid. The heat dissipation principle of the heat pipe is through the two-phase change of the working fluid, that is, the working fluid will first absorb heat on the heat source corresponding to a heating section at the end of the pipe body to form vaporization, and change from the liquid phase to the gaseous state, and diffuse in the pipe body It transfers heat to a condensing section at the other end of the pipe body, and then conducts heat exchange through the relevant external heat dissipation mechanism to remove the heat.

其次,於管體的內壁上設置有一毛細結構。當氣態的工作流體因熱交換而釋出熱量後會形成冷凝,而從氣態又相變回液態,此時毛細結構能透過重力或毛細力將液態的工作流體再加以回流到該加熱段上。如此,藉由重覆的液氣二相循環變化,工作流體便可在管體的加熱段與冷凝段之間不斷地往返傳輸直至兩端趨向均溫,故能達到持續導熱與散熱的效果。 Secondly, a capillary structure is provided on the inner wall of the tube body. When the gaseous working fluid releases heat due to heat exchange, it will form condensation, and then change from gaseous state to liquid state. At this time, the capillary structure can return the liquid working fluid to the heating section through gravity or capillary force. In this way, the working fluid can be continuously transferred between the heating section and the condensing section of the pipe body until the two ends tend to be even temperature, so that the effect of continuous heat conduction and heat dissipation can be achieved.

然而,此一習知的熱管結構仍存在著許多待改進的技術缺陷。舉例來說,由於液態的工作流體與氣態的工作流體在管體內的流動方向是相反的,且兩者是處於相同的腔室之內,故容易對彼此的傳輸造成干擾而降低了擴散或回流的速度,進而對整體的導熱與散熱效能產生影響。 However, this conventional heat pipe structure still has many technical defects to be improved. For example, because the flow direction of the liquid working fluid and the gaseous working fluid in the tube body is opposite, and the two are in the same chamber, it is easy to interfere with the transmission of each other and reduce the diffusion or backflow. The speed, in turn, has an impact on the overall thermal and thermal performance.

是以,目前常見的改善方式是提出了在管體的內壁上加工、開設出相關的紋路或溝槽結構再來搭配毛細結構,以期提升回流效果。但這樣的設計勢必會限縮氣態的工作流體在管體內的流動空間,特別是管徑愈小的熱管其改善的效果愈有限。再者,熱管在後續的製程上常需要做進一步的彎曲或壓折之加工,如此勢必會損壞到管體內壁上的相關溝槽結構或毛細結構,從而影響了回流的效果。 Therefore, the current common improvement method is to propose processing on the inner wall of the pipe body, creating related texture or groove structures, and then matching the capillary structure in order to improve the reflow effect. However, such a design will inevitably limit the flow space of the gaseous working fluid in the tube body, especially the smaller the diameter of the heat pipe, the more limited the improvement effect. In addition, the heat pipe often needs to be further bent or crimped in the subsequent manufacturing process, which will inevitably damage the relevant groove structure or capillary structure on the inner wall of the tube, thereby affecting the effect of reflow.

本創作之目的在於提出一種複合式熱管。該複合式熱管具有兩種不同的毛細結構,其中一毛細結構具有多個溝槽之設計,而另一毛細結構則具有一平滑面之設計,藉由此一配置能使氣態的工作流體有較大的流動空間並可提升液態的工作流體的回流速度。 The purpose of this creation is to propose a composite heat pipe. The composite heat pipe has two different capillary structures, one of which has multiple grooves, and the other of the capillary structure has a smooth surface design. With this configuration, the gaseous working fluid can be compared Large flow space can increase the return speed of liquid working fluid.

本創作為一種複合式熱管,包含有一工作流體、一第一毛細結構、一第二毛細結構以及一管體。該第一毛細結構具有一平滑面。該第二毛細結構具有複數個溝槽。該管體用以容置該工作流體。其中該管體包括一第一區段以及一第二區段。該第一區段具有一第一內壁,而該第一毛細結構形成於該第一內壁上。該第二區段連接於該第一區段,該第二區段具有一第二內壁,而該些溝槽相應於一軸向形成於該第二內壁上。 This composition is a composite heat pipe, including a working fluid, a first capillary structure, a second capillary structure and a tube body. The first capillary structure has a smooth surface. The second capillary structure has a plurality of grooves. The tube body is used to contain the working fluid. The tube body includes a first section and a second section. The first section has a first inner wall, and the first capillary structure is formed on the first inner wall. The second section is connected to the first section, the second section has a second inner wall, and the grooves are formed on the second inner wall corresponding to an axial direction.

為了對本創作之上述及其他方面有更佳的瞭解,下文特舉實施例並配合所附圖式進行詳細說明。 In order to have a better understanding of the above and other aspects of this creation, the following examples are given in detail in conjunction with the attached drawings.

1、1’、1”‧‧‧複合式熱管 1. 1 ’, 1” ‧‧‧‧composite heat pipe

100‧‧‧管體 100‧‧‧tube

101‧‧‧氣流通道 101‧‧‧Air flow channel

102‧‧‧工作流體 102‧‧‧Working fluid

10、10a、10b‧‧‧第一區段 10, 10a, 10b ‧‧‧ first section

11‧‧‧第一內壁 11‧‧‧First inner wall

20、20’、20a、20b‧‧‧第二區段 20, 20 ’, 20a, 20b ‧‧‧ second section

21、21’‧‧‧第二內壁 21、21’‧‧‧Second inner wall

30、30a、30b‧‧‧第一毛細結構 30, 30a, 30b ‧‧‧ capillary structure

31‧‧‧平滑面 31‧‧‧Smooth surface

40、40’、40a、40b‧‧‧第二毛細結構 40, 40 ’, 40a, 40b ‧‧‧ second capillary structure

41、41’、411、412‧‧‧溝槽 41, 41 ’, 411, 412

42、42’‧‧‧側壁 42、42’‧‧‧Side wall

43、43’‧‧‧底部 43, 43’‧‧‧ bottom

7‧‧‧熱源 7‧‧‧heat source

8‧‧‧散熱機制 8‧‧‧heat dissipation mechanism

C0‧‧‧殼體厚度 C0‧‧‧case thickness

C1‧‧‧第一平均厚度 C1‧‧‧ First average thickness

C2‧‧‧第二平均厚度 C2‧‧‧Second average thickness

C3‧‧‧深度 C3‧‧‧Depth

D1‧‧‧軸向 D1‧‧‧axial

S1、S1’、S1”‧‧‧加熱段 S1, S1 ’, S1” ‧‧‧‧Heating section

S2、S2’、S2”‧‧‧傳輸段 S2, S2 ’, S2” transmission section

S3、S3’、S3”‧‧‧冷凝段 S3, S3 ’, S3” ‧‧‧‧Condensation section

第1圖,為本創作的第一實施例所提出的一複合式熱管1的平面示意圖。 Figure 1 is a schematic plan view of a composite heat pipe 1 proposed in the first embodiment of the present invention.

第2圖,為複合式熱管1的側面剖視圖與應用示意圖。 FIG. 2 is a side sectional view and application schematic diagram of the compound heat pipe 1.

第3圖,為複合式熱管1於第1圖中的A-A段的剖視圖。 FIG. 3 is a cross-sectional view of the composite heat pipe 1 at section A-A in FIG. 1.

第4圖,為複合式熱管1於第1圖中的B-B段的剖視圖。 FIG. 4 is a cross-sectional view of the composite heat pipe 1 in section B-B of FIG. 1.

第5圖,為複合式熱管1的一第二區段20與一第二毛細結構40以橫向方式呈現的部份放大示意圖。 FIG. 5 is a partially enlarged schematic view showing a second section 20 and a second capillary structure 40 of the composite heat pipe 1 in a lateral manner.

第6圖,為本創作的第二實施例所提出的一第二區段20’的剖視圖。 Fig. 6 is a cross-sectional view of a second section 20 'proposed in the second embodiment of the present invention.

第7圖,為本創作的第三實施例所提出的一複合式熱管1’的側面剖視圖與應用示意圖。 Fig. 7 is a side cross-sectional view and application schematic diagram of a composite heat pipe 1 'proposed in the third embodiment of the present invention.

第8圖,為本創作的第四實施例所提出的一複合式熱管1”的側面剖視圖與應用示意圖。 Fig. 8 is a side sectional view and application schematic diagram of a composite heat pipe 1 "proposed in the fourth embodiment of the present invention.

以下係提出實施例進行詳細說明,實施例僅用以作為範例說明,並不會限縮本創作欲保護之範圍。此外,實施例中之圖式係省略不必要或以通常技術即可完成之元件,以清楚顯示本創作之技術特點。 The following is an example for detailed description. The example is only used as an example, and does not limit the scope of protection of the creation. In addition, the drawings in the embodiments omit unnecessary or common technical elements to clearly show the technical characteristics of the creation.

現以一第一實施例進行本創作之實施說明。請同時參見第1圖與第2圖。其中第1圖為該第一實施例所提出的一複合式熱管1的平面示意圖;第2圖為該複合式熱管1的側面剖視圖與應用示意圖。如第1圖與第2圖所示,該複合式熱管1主要包含有一管體100與一工作流體102,該工作流體102是容置於兩端呈現封閉的該管體100中。在第1圖與第2圖中的該管體100是以直線型態的方式進行示意,但可以理解的是該管體100可能呈現的型態並不限於此。 A first embodiment is now used to illustrate the implementation of this creation. Please refer to Figure 1 and Figure 2 at the same time. FIG. 1 is a schematic plan view of a composite heat pipe 1 according to the first embodiment; FIG. 2 is a side cross-sectional view and application diagram of the composite heat pipe 1. As shown in FIG. 1 and FIG. 2, the composite heat pipe 1 mainly includes a tube body 100 and a working fluid 102. The working fluid 102 is accommodated in the tube body 100 that is closed at both ends. The pipe body 100 in FIGS. 1 and 2 is illustrated in a linear manner, but it can be understood that the possible forms of the pipe body 100 are not limited thereto.

該工作流體102可為水、冷卻液或其他可產生相同功效之流體,例如甲醇、丙酮、汞等,即加熱前為液態,加熱後可相變成氣態,冷卻後又相變回液態。可以理解的是因應工作環境溫度之不同,所適用的工作流體亦有不同,且須在該管體100之一端未被封閉前先注入於其中。在實際運作狀態下,該工作流體102在該管體100中可呈現出液態、氣態同時存在之情形。該管體100則可採用熱傳導性能較佳的金屬材料所製成,例如銅、鋁、不銹鋼等。 The working fluid 102 can be water, cooling fluid or other fluids that can produce the same effect, such as methanol, acetone, mercury, etc. That is, it is in a liquid state before heating, and can be changed into a gaseous state after heating, and then returns to a liquid state after cooling. It can be understood that the applicable working fluid is different according to the temperature of the working environment, and must be injected into the tube body 100 before one end is closed. In the actual operating state, the working fluid 102 may present a liquid state and a gas state in the tube body 100 at the same time. The tube body 100 can be made of metal materials with better thermal conductivity, such as copper, aluminum, stainless steel, etc.

如第1圖與第2圖所示,該管體100包括一第一區段10與一第二區段20,該第二區段20連接於該第一區段10。於此實施例中,該第一區段10為針對實際運作狀態下的一加熱段S1做配置,也就是該加熱段S1是相應於一熱源7(例如一晶片單元)以進行加熱。其次,該第二區段20則同時是一冷凝段S3與一傳輸段S2,其中該冷凝段S3是相應於外部的一散熱機制8(例如一散熱鰭片組)以進行散熱。一般來說,所定義的該加熱段S1與該冷凝段S3是分別位於該管體100的兩端,而該傳輸段S2則是位於該加熱段S1與該冷凝段S3之間。加熱段S1、傳輸段S2與冷凝段S3的長度大小視實際應用而定。 As shown in FIGS. 1 and 2, the tube body 100 includes a first section 10 and a second section 20. The second section 20 is connected to the first section 10. In this embodiment, the first section 10 is configured for a heating section S1 in an actual operating state, that is, the heating section S1 corresponds to a heat source 7 (eg, a wafer unit) for heating. Secondly, the second section 20 is a condensing section S3 and a transmission section S2, wherein the condensing section S3 corresponds to an external heat dissipation mechanism 8 (such as a heat dissipation fin set) for heat dissipation. Generally speaking, the defined heating section S1 and the condensing section S3 are respectively located at both ends of the tube body 100, and the transmission section S2 is located between the heating section S1 and the condensing section S3. The length of the heating section S1, the transmission section S2 and the condensation section S3 depends on the actual application.

請同時參見第3圖與第4圖。其中第3圖為該複合式熱管1於第1圖中的A-A段的剖視圖;第4圖為該複合式熱管1於第1圖中的B-B段的剖視圖。如第1圖至第4圖所示,該熱管1還包括一第一毛細結構30與一第二毛細結構40,其中該第一毛細結構30相應於該第一區段10,而該第二毛細結構40相應於該第二區段20。由第3圖所示可知,該第一區段10具有一第一內壁11,而該第一毛細結構30是形成於該第一內壁11上。由第4圖所示可知,該第二區段20具有一第二內壁21,而該第二毛細結構40是形成於該第二內壁21上。 Please refer to Figure 3 and Figure 4 at the same time. FIG. 3 is a cross-sectional view of the composite heat pipe 1 in section A-A of FIG. 1; FIG. 4 is a cross-sectional view of the composite heat pipe 1 in section B-B of FIG. 1. As shown in FIGS. 1 to 4, the heat pipe 1 further includes a first capillary structure 30 and a second capillary structure 40, wherein the first capillary structure 30 corresponds to the first section 10, and the second The capillary structure 40 corresponds to the second section 20. As can be seen from FIG. 3, the first section 10 has a first inner wall 11, and the first capillary structure 30 is formed on the first inner wall 11. As can be seen from FIG. 4, the second section 20 has a second inner wall 21, and the second capillary structure 40 is formed on the second inner wall 21.

承上所述,該第一毛細結構30具有一平滑面31,也就是其結構在形成於該第一內壁11上後是呈現出表面無凹凸的該平滑面31。本創作的其一特徵在於,在該第一毛細結構30形成後,於該第一區段10的內部還留有相當的空間,也就是該第一毛細結構30僅形成一特定的厚度,而非整個填滿該第一區段10的內部。 As mentioned above, the first capillary structure 30 has a smooth surface 31, that is, after the structure is formed on the first inner wall 11, the smooth surface 31 with no unevenness is presented. One feature of this creation is that after the formation of the first capillary structure 30, there is still considerable space inside the first section 10, that is, the first capillary structure 30 only forms a specific thickness, and The inside of the first section 10 is not completely filled.

詳細來說,如第1圖至第4圖所示,該管體100還具有一氣流通道101,該氣流通道101是貫穿該第一區段10與該第二區段20,而從該加熱段S1連通到該冷凝段S3。如此,位於該第一毛細結構30處的工作流體在受該熱源7加熱而被汽化成 氣態時,就有足夠的空間加以容納。 In detail, as shown in FIGS. 1 to 4, the tube body 100 further has an air flow channel 101 which penetrates the first section 10 and the second section 20 and is heated from the Section S1 communicates with this condensing section S3. In this way, the working fluid located at the first capillary structure 30 is heated by the heat source 7 to be vaporized into When gaseous, there is enough space to accommodate it.

本創作的另一特徵在於,該第二毛細結構40是直接以所具有的複數個溝槽41以相應於一軸向D1之方式形成於該第二內壁21上。此實施例中的該管體100的該第一區段10與該第二區段20可為一整體設計,也就是該第一內壁11與該第二內壁21是一體成型的相連,但是各自於其上形成出不同型態的毛細結構。 Another feature of the present creation is that the second capillary structure 40 is directly formed on the second inner wall 21 with a plurality of grooves 41 corresponding to an axial direction D1. In this embodiment, the first section 10 and the second section 20 of the tube body 100 may be of an integral design, that is, the first inner wall 11 and the second inner wall 21 are integrally formed, However, different capillary structures are formed on them.

是以,可設計該管體100無論是在該第一區段10或該第二區段20都具有相同的一殼體厚度。而該第一毛細結構30與該第二毛細結構40則可分別在該管體100的兩端(亦或可僅其中一端)尚未被封閉之前,以適當的方式分別形成於該第一內壁11上與該第二內壁21上。舉例來說,該第一毛細結構30與該第二毛細結構40能以例如銅之金屬之粉末以燒結或冶金方式伸入至該管體100中來完成。 Therefore, it can be designed that the tube body 100 has the same thickness of the casing no matter in the first section 10 or the second section 20. The first capillary structure 30 and the second capillary structure 40 can be respectively formed on the first inner wall in an appropriate manner before the two ends (or only one end) of the tube body 100 have not been closed. 11 and the second inner wall 21. For example, the first capillary structure 30 and the second capillary structure 40 can be completed by sintering or metallurgically extending into the tube body 100 by powder of a metal such as copper.

在第2圖的示意中還呈現了氣態的該工作流體102的傳輸情形(如空心箭號所示)。以銅粉形成的毛細結構30、40是貼附於該管體100的內壁11、21上,故自該冷凝段S3形成冷凝所相變回液態的該工作流體102就可依序吸附於該第二毛細結構40與該第一毛細結構30而能再回流到該加熱段S1上(即該第一區段10)(如實心箭號所示)。 The schematic diagram of FIG. 2 also presents the transmission state of the gaseous working fluid 102 (as indicated by the hollow arrows). The capillary structures 30, 40 formed of copper powder are attached to the inner walls 11, 21 of the tube body 100, so that the working fluid 102, which is transformed from the condensation section S3 to the liquid phase by the condensation, can be sequentially adsorbed on The second capillary structure 40 and the first capillary structure 30 can return to the heating section S1 (ie, the first section 10) (as indicated by solid arrows).

另一方面,此實施例中的該軸向D1即為該管體100的軸心線方向,而該些溝槽41與該軸向D1是相應的,也就是配置該些溝槽41從該第二區段20的一端到其另一端的走向是平行於該軸向D1。當然,本創作的概念不限於此,也就是其配置方式可不僅是平行而已,只要能有效使液態的該工作流體102回流到該加熱段S1,即可為本創作的溝槽型態。 On the other hand, the axial direction D1 in this embodiment is the axis line direction of the tube body 100, and the grooves 41 correspond to the axial direction D1, that is, the grooves 41 are arranged from the The course of one end of the second section 20 to the other end is parallel to the axial direction D1. Of course, the concept of the present creation is not limited to this, that is, its arrangement can be not only parallel, as long as it can effectively return the liquid working fluid 102 to the heating section S1, it can be the groove type of the creation.

如第4圖所示,該些溝槽41是呈現出規則性排列的鋸齒型態,也就是以間隔方式配置出多個凹槽。於此實施例中,該第二毛細結構40還包括相鄰於該些溝槽41的多個側壁42與 一底部43,該些側壁42是搭配該些溝槽41於該底部43上呈現出方形鋸齒。由於該第二毛細結構40的該些溝槽41的設置,其周長相較於一般平滑狀的毛細結構的周長(例如該第一毛細結構30的該平滑面31)來說是較大的,故接觸的截面積也相對增多,從而確實能有效提升回流速度。 As shown in FIG. 4, the grooves 41 have a regularly arranged zigzag pattern, that is, a plurality of grooves are arranged at intervals. In this embodiment, the second capillary structure 40 further includes a plurality of side walls 42 adjacent to the trenches 41 and A bottom 43, the side walls 42 are matched with the grooves 41 to present square saw teeth on the bottom 43. Due to the arrangement of the grooves 41 of the second capillary structure 40, its perimeter is larger than that of a generally smooth capillary structure (such as the smooth surface 31 of the first capillary structure 30) Therefore, the cross-sectional area of the contact is also relatively increased, which can effectively improve the reflow speed.

進一步來說,當毛細結構的截面積增加時,除了可增加回流速度外,也因為能有效吸住液態的工作流體,使得一般熱管裝置常發生的溢水現象或因流量較大時容易出現的逆音、噪音現象等習知問題,也可以有明顯的改善。其次,針對溢水現象之後續問題,當所應用的工作環境的溫度是相對較低時(例如攝氏零下40度的極地),就能一併解決因溢水所造成的結冰問題,也避免了因結冰而會對管路結構所帶來的破壞。 Further, when the cross-sectional area of the capillary structure is increased, in addition to increasing the return speed, it can also effectively absorb the liquid working fluid, which makes the overflow phenomenon that commonly occurs in general heat pipe devices or the reverse flow that is likely to occur when the flow rate is large. The conventional problems such as sound and noise phenomena can also be significantly improved. Secondly, for the subsequent problems of the overflow phenomenon, when the temperature of the applied working environment is relatively low (for example, the polar region of minus 40 degrees Celsius), the icing problem caused by the overflow water can be solved together, and the Freezing will cause damage to the pipeline structure.

再者,由於該第二毛細結構40的該些溝槽41是直接形成於該第二內壁21上,而非先對該第二內壁21進行加工、開設出相關的紋路或溝槽結構後才再於其上燒結出毛細結構,使得氣態的工作流體102受該管體100內的流動空間的限縮影響可相對地減少,也就是有相對較大的該氣流通道101。 Furthermore, because the grooves 41 of the second capillary structure 40 are directly formed on the second inner wall 21, the second inner wall 21 is not processed first, and the related texture or groove structure is created Then, the capillary structure is sintered on it, so that the gaseous working fluid 102 can be relatively reduced by the constriction of the flow space in the tube body 100, that is, the gas flow channel 101 is relatively large.

請參見第5圖,為該第二區段20與該第二毛細結構40以橫向方式呈現的部份放大示意圖。如第5圖所示,該管體100(在該第二區段20)具有一殼體厚度C0,而該第二毛細結構40具有一第二平均厚度C2。一般而言,較深的溝槽可有助於回流,故於此實施例中是設計該第二平均厚度C2大於該殼體厚度C0。如上所述,該第二毛細結構40包括溝槽41、側壁42與底部43,因此該第二平均厚度C2即為該些溝槽41的深度C3(或為該些側壁42的高度)再加上該底部43的厚度。 Please refer to FIG. 5, which is a partially enlarged schematic view of the second section 20 and the second capillary structure 40 presented in a lateral manner. As shown in FIG. 5, the tube body 100 (in the second section 20) has a shell thickness C0, and the second capillary structure 40 has a second average thickness C2. Generally speaking, the deeper grooves can facilitate reflow, so in this embodiment, the second average thickness C2 is designed to be greater than the thickness C0 of the housing. As described above, the second capillary structure 40 includes the trench 41, the sidewall 42 and the bottom 43, so the second average thickness C2 is the depth C3 of the trench 41 (or the height of the sidewall 42) plus The thickness of the bottom 43.

於一模擬實驗中,可將該殼體厚度C0設計在0.1毫米(mm)至0.4毫米(mm)之間,並將該第二平均厚度C2設計在0.3毫米(mm)至1.5毫米(mm)之間。另一方面,可將該些溝槽41的深度C3(或為該些側壁42的高度)設計在0.3毫米(mm)至0.5毫米 (mm)之間。因此,該底部43的厚度最大值可為1.2毫米(mm)。而當該第二平均厚度C2與該深度C3皆設計為0.3毫米(mm)時,代表可不設計該底部43。 In a simulation experiment, the thickness C0 of the housing can be designed between 0.1 millimeters (mm) and 0.4 millimeters (mm), and the second average thickness C2 is designed between 0.3 millimeters (mm) and 1.5 millimeters (mm) between. On the other hand, the depth C3 of the grooves 41 (or the height of the side walls 42) can be designed to be 0.3 millimeters (mm) to 0.5 millimeters (mm). Therefore, the maximum thickness of the bottom portion 43 may be 1.2 millimeters (mm). When both the second average thickness C2 and the depth C3 are designed to be 0.3 millimeters (mm), it means that the bottom 43 may not be designed.

另一方面,該第一毛細結構30具有一第一平均厚度C1,該第一平均厚度C1與該第二平均厚度C2可具有相對應的關係,或兩者並無對應關係,也就是該第一平均厚度C1可小於、等於或大於該第二平均厚度C2。一般而言,為使氣態的工作流體102有足夠的容納空間,所形成的該第一平均厚度C1不宜過大。但因為該加熱段S1的溫度是較高的,所以也需要留存有足夠的液態的工作流體102,故該第一平均厚度C1也不宜過小。於一模擬實驗中,可將該第一平均厚度C1設計在0.3毫米(mm)至2.5毫米(mm)之間。 On the other hand, the first capillary structure 30 has a first average thickness C1, the first average thickness C1 and the second average thickness C2 may have a corresponding relationship, or there is no corresponding relationship between the two, that is, the first An average thickness C1 may be less than, equal to or greater than the second average thickness C2. Generally speaking, in order to allow the gaseous working fluid 102 to have sufficient accommodation space, the first average thickness C1 formed should not be too large. However, because the temperature of the heating section S1 is relatively high, sufficient liquid working fluid 102 also needs to be retained, so the first average thickness C1 should not be too small. In a simulation experiment, the first average thickness C1 can be designed between 0.3 millimeters (mm) and 2.5 millimeters (mm).

本創作還可根據上述的第一實施例之技術概念作其他的變化設計,而能達到相同或類似的功能與目的。 This creation can also be designed according to the above-mentioned first embodiment of the technical concept of other changes, and can achieve the same or similar functions and purposes.

舉例來說,於另一實施方式中也可先分別製造第一區段與第一毛細結構之配置及第二區段與第二毛細結構之配置,之後再加以組合。換句話說,本創作的管體的第一區段與第二區段可非為一整體,也就是其各自的第一內壁與第二內壁可非為一體成型的設計。如此,該第一內壁與該第二內壁可有不同的殼體厚度。此種組合式的設計可適用於較大的熱管模組上,因為熱源與散熱機制之間可能有較長的距離。 For example, in another embodiment, the configuration of the first section and the first capillary structure and the configuration of the second section and the second capillary structure may be manufactured separately, and then combined. In other words, the first section and the second section of the pipe body of the present creation may not be a whole, that is, their respective first inner wall and second inner wall may not be a unitary design. In this way, the first inner wall and the second inner wall may have different shell thicknesses. This combined design can be applied to larger heat pipe modules, because there may be a longer distance between the heat source and the heat dissipation mechanism.

又或者,本創作的第二毛細結構中的多個溝槽的型態亦可作不同的變化,或者可根據應用需求加以調整。 Or alternatively, the types of the plurality of grooves in the second capillary structure of the present creation can also be changed differently, or can be adjusted according to application requirements.

現以一第二實施例進行本創作之實施說明。請參見第6圖,為該第二實施例所提出的一第二區段20’的剖視圖。其中功能相近的元件是以類似的元件編號進行示意,例如第二毛細結構40’、溝槽41’、側壁42’與底部43’等。如第6圖所示,此第二實施例與第一實施例的差異在於其中形成於該第二區段20’的一第二內壁21’上的第二毛細結構40’所具有的多個溝槽41’、 411、412是呈現出非等間距或不規則性排列。 A second embodiment is now used to illustrate the implementation of this creation. Please refer to FIG. 6, which is a cross-sectional view of a second section 20 'proposed by the second embodiment. Components with similar functions are indicated by similar component numbers, such as the second capillary structure 40 ', the groove 41', the side wall 42 'and the bottom 43'. As shown in FIG. 6, the difference between this second embodiment and the first embodiment lies in the many of the second capillary structures 40 'formed on a second inner wall 21' of the second section 20 ' Groove 41 ', 411 and 412 show non-equidistant or irregular arrangement.

承上所述,雖然該些溝槽41’、411、412也是呈現出鋸齒型態,即亦以間隔方式配置出多個凹槽,但其中有兩溝槽411、412的寬度大於其所相鄰的另一溝槽41’的寬度(可設定其他溝槽的寬度都較小)。根據習知技術可知,熱管在後續的製程上常需要做進一步的彎曲或壓折之加工。是以,若毛細結構有部份的溝槽具有相對較大之寬度,在進行加工處理時就可以針對寬度較大之部位來進行;例如第6圖中的兩溝槽411、412,如此能讓溝槽或毛細結構的變形情況或可能之損壞情形得到有效的控制與改善。 As mentioned above, although the grooves 41 ', 411, and 412 also exhibit a zigzag pattern, that is, a plurality of grooves are also arranged at intervals, but two of the grooves 411 and 412 are wider than their phase The width of another adjacent trench 41 '(the width of other trenches can be set to be smaller). According to the known technology, the heat pipe often needs to be further bent or folded in the subsequent manufacturing process. Therefore, if some of the grooves of the capillary structure have a relatively large width, it can be processed for the part with a larger width during processing; for example, the two grooves 411, 412 in Figure 6 can be so Let the deformation or possible damage of the groove or capillary structure be effectively controlled and improved.

可以理解的是,第二實施例所提出的有兩個寬度相對較大的溝槽僅為其一實施說明而已,但本創作的概念並不限於此。舉例來說,亦可設計具有相對較大之寬度的溝槽可為更多個,或是至少一個。 It can be understood that the two grooves with relatively large widths proposed in the second embodiment are only an implementation description thereof, but the concept of the present creation is not limited to this. For example, there may be more grooves or at least one groove with a relatively larger width.

再或者,本創作的第一區段與第二區段分別和冷凝段、傳輸段與加熱段之間的對應關係可做不同的設計。第一實施例是將形成出平滑面31的該第一區段10作為加熱段S1,將形成出溝槽41的該第二區段20作為冷凝段S3與傳輸段S2。然而,作為傳輸段的區段的構造其實並無限制。 Or alternatively, the corresponding relationship between the first section and the second section of the creation and the condensation section, the transmission section and the heating section can be designed differently. In the first embodiment, the first section 10 where the smooth surface 31 is formed is used as the heating section S1, and the second section 20 where the groove 41 is formed is used as the condensation section S3 and the transfer section S2. However, the structure of the section as the transmission section is actually not limited.

現以一第三實施例進行本創作之實施說明。請參見第7圖,為該第三實施例所提出的一複合式熱管1’的側面剖視圖與應用示意圖。其中功能相近的元件是以類似的元件編號進行示意。如第7圖所示,此第三實施例與第一實施例的差異在於其中改將形成出一第二毛細結構40a(即相應的溝槽)的一第二區段20a僅作為一冷凝段S3’,而形成出一第一毛細結構30a(即相應的平滑面)的一第一區段10a則可同時作為一加熱段S1’與一傳輸段S2’。 A third embodiment is now used to illustrate the implementation of this creation. Please refer to FIG. 7, which is a side sectional view and application schematic diagram of a composite heat pipe 1 'according to the third embodiment. Components with similar functions are indicated by similar component numbers. As shown in FIG. 7, the difference between this third embodiment and the first embodiment lies in that a second section 20a forming a second capillary structure 40a (ie, corresponding groove) is used only as a condensation section S3 ', and a first section 10a forming a first capillary structure 30a (ie a corresponding smooth surface) can be used as a heating section S1' and a transmission section S2 'at the same time.

現以一第四實施例進行本創作之實施說明。請參見第8圖,為該第四實施例所提出的一複合式熱管1”的側面剖視圖 與應用示意圖。其中功能相近的元件是以類似的元件編號進行示意。如第8圖所示,此第四實施例與第一實施例的差異在於其中改將形成出一第一毛細結構30b(即相應的平滑面)的一第一區段10b僅作為一加熱段S1”的一部份而已,而形成出一第二毛細結構40b(即相應的溝槽)的一第二區段20b則可同時作為一冷凝段S3”、一傳輸段S2”與該加熱段S1”的另一部份,也就是該第二區段20b的該第二毛細結構40b是呈現出伸入至該加熱段S1”。須注意的是,該第二區段20b(或該第二毛細結構40b)不與該熱源7形成重疊,也就是該第二區段20b(或該第二毛細結構40b)只會於上方切齊該熱源7的邊緣,而不會覆蓋於其上。 A fourth embodiment is now used to illustrate the implementation of this creation. Please refer to FIG. 8, which is a side cross-sectional view of a composite heat pipe 1 "proposed in the fourth embodiment. And application diagram. Components with similar functions are indicated by similar component numbers. As shown in FIG. 8, the difference between this fourth embodiment and the first embodiment lies in that a first section 10b forming a first capillary structure 30b (ie, a corresponding smooth surface) is only used as a heating section S1 "is only a part, and a second section 20b forming a second capillary structure 40b (ie corresponding groove) can be used as a condensing section S3", a transmission section S2 "and the heating section The other part of S1 ", that is, the second capillary structure 40b of the second section 20b, appears to extend into the heating section S1". It should be noted that the second section 20b (or the first section The second capillary structure 40b) does not form an overlap with the heat source 7, that is, the second section 20b (or the second capillary structure 40b) only cuts the edge of the heat source 7 above, and does not cover it.

綜上所述,本創作所提出的複合式熱管相較於先前技術能達到以下幾點的技術增進:其一,本創作的毛細結構的溝槽是直接形成於相應的內壁上,故可使氣態的工作流體有較大的流動空間;其二,毛細結構的溝槽設計相對地增加了截面積,故可有效提升回流速度;其三,因增加了回流速度,故可減少溢水現象的發生,從而避免了逆音、噪音現象等問題;其四,因減少了溢水現象,故可避免了在低溫環境下的結冰及管路結構破壞等問題;其五,本創作在加熱段的管體內部仍留有氣流通道,故可使工作流體被汽化成氣態時,有足夠的空間加以容納。 In summary, compared with the prior art, the composite heat pipe proposed in this creation can achieve the following technical improvements: First, the groove of the capillary structure in this creation is directly formed on the corresponding inner wall, so it can be The gaseous working fluid has a larger flow space; second, the groove design of the capillary structure relatively increases the cross-sectional area, so it can effectively increase the return speed; third, because the increased return speed, it can reduce the phenomenon of overflow Occurred, thereby avoiding the problems of back sound and noise; fourth, due to the reduction of water overflow, it can avoid the problems of icing and pipeline structure damage in low temperature environments; fifth, the original creation in the heating section There is still a gas flow channel inside the tube body, so that when the working fluid is vaporized into a gas state, there is enough space to accommodate it.

是故,本創作能有效解決先前技術中所提出之相關問題,而能成功地達到本案發展之主要目的。 Therefore, this creation can effectively solve the related problems raised in the previous technology, and can successfully achieve the main purpose of the development of this case.

雖然本創作已以實施例揭露如上,然其並非用以限定本創作。本創作所屬技術領域中具有通常知識者,在不脫離本創作之精神和範圍內,當可作各種之更動與潤飾。因此,本創作之保護範圍當視後附之申請專利範圍所界定者為準。 Although this creation has been disclosed above with examples, it is not intended to limit this creation. Those with ordinary knowledge in the technical field to which this creation belongs can be used for various changes and retouching without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall be deemed as defined by the scope of the attached patent application.

Claims (17)

一種複合式熱管,包含有:一工作流體;一第一毛細結構,具有一平滑面;一第二毛細結構,具有複數個溝槽;以及一管體,用以容置該工作流體;其中該管體包括:一第一區段,具有一第一內壁,而該第一毛細結構形成於該第一內壁上;以及一第二區段,連接於該第一區段,該第二區段具有一第二內壁,而該些溝槽相應於一軸向形成於該第二內壁上。A composite heat pipe includes: a working fluid; a first capillary structure with a smooth surface; a second capillary structure with a plurality of grooves; and a tube body for accommodating the working fluid; wherein the The tube body includes: a first section with a first inner wall, and the first capillary structure is formed on the first inner wall; and a second section, connected to the first section, the second The section has a second inner wall, and the grooves are formed on the second inner wall corresponding to an axial direction. 如申請專利範圍第1項所述之複合式熱管,其中該管體具有一殼體厚度,該第二毛細結構具有一第二平均厚度,且該第二平均厚度大於該殼體厚度。The composite heat pipe as described in item 1 of the patent application range, wherein the pipe body has a shell thickness, the second capillary structure has a second average thickness, and the second average thickness is greater than the shell thickness. 如申請專利範圍第2項所述之複合式熱管,其中該殼體厚度在0.1毫米(mm)至0.4毫米(mm)之間。The composite heat pipe as described in item 2 of the patent application scope, wherein the thickness of the shell is between 0.1 millimeters (mm) and 0.4 millimeters (mm). 如申請專利範圍第2項所述之複合式熱管,其中該第二平均厚度在0.3毫米(mm)至1.5毫米(mm)之間。The composite heat pipe as described in item 2 of the patent application range, wherein the second average thickness is between 0.3 millimeters (mm) and 1.5 millimeters (mm). 如申請專利範圍第2項所述之複合式熱管,其中該第一毛細結構具有一第一平均厚度,該第一平均厚度大於該第二平均厚度。The compound heat pipe as described in item 2 of the patent application scope, wherein the first capillary structure has a first average thickness, and the first average thickness is greater than the second average thickness. 如申請專利範圍第5項所述之複合式熱管,其中該第一平均厚度在0.3毫米(mm)至2.5毫米(mm)之間。The composite heat pipe as described in item 5 of the patent application range, wherein the first average thickness is between 0.3 millimeters (mm) and 2.5 millimeters (mm). 如申請專利範圍第2項所述之複合式熱管,其中該第一毛細結構具有一第一平均厚度,該第一平均厚度小於或等於該第二平均厚度。The composite heat pipe as described in item 2 of the patent application range, wherein the first capillary structure has a first average thickness, and the first average thickness is less than or equal to the second average thickness. 如申請專利範圍第1項所述之複合式熱管,其中該些溝槽呈現出規則性排列。The composite heat pipe as described in item 1 of the scope of patent application, wherein the grooves present a regular arrangement. 如申請專利範圍第1項所述之複合式熱管,其中該些溝槽呈現出不規則性排列,且該些溝槽中之至少一溝槽的寬度大於其所相鄰的另一溝槽的寬度。The compound heat pipe as described in item 1 of the scope of the patent application, wherein the grooves present an irregular arrangement, and the width of at least one of the grooves is greater than that of the other groove adjacent to it width. 如申請專利範圍第1項所述之複合式熱管,其中該第一區段為一加熱段,該加熱段相應於一熱源以進行加熱。The compound heat pipe as described in item 1 of the patent application scope, wherein the first section is a heating section, and the heating section corresponds to a heat source for heating. 如申請專利範圍第10項所述之複合式熱管,其中該第二區段為一冷凝段與一傳輸段,該冷凝段相應於一散熱機制以進行散熱,該傳輸段位於該加熱段與該冷凝段之間。The composite heat pipe as described in item 10 of the patent application scope, wherein the second section is a condensing section and a transmission section, the condensing section corresponds to a heat dissipation mechanism for heat dissipation, the transmission section is located in the heating section and the Between the condensation sections. 如申請專利範圍第1項所述之複合式熱管,其中該第二區段為一冷凝段,該冷凝段相應於一散熱機制以進行散熱。The compound heat pipe as described in item 1 of the patent application scope, wherein the second section is a condensing section, and the condensing section corresponds to a heat dissipation mechanism for heat dissipation. 如申請專利範圍第12項所述之複合式熱管,其中該第一區段為一加熱段與一傳輸段,該加熱段相應於一熱源以進行加熱,該傳輸段位於該加熱段與該冷凝段之間。The composite heat pipe as described in item 12 of the patent application scope, wherein the first section is a heating section and a transmission section, the heating section corresponds to a heat source for heating, the transmission section is located in the heating section and the condensation Between segments. 如申請專利範圍第1項所述之複合式熱管,其中該第一區段為一加熱段的一部份,該加熱段相應於一熱源以進行加熱。The composite heat pipe as described in item 1 of the patent application, wherein the first section is a part of a heating section, and the heating section corresponds to a heat source for heating. 如申請專利範圍第14項所述之複合式熱管,其中該第二區段為一冷凝段、一傳輸段與該加熱段的另一部份,該冷凝段相應於一散熱機制以進行散熱,該傳輸段位於該加熱段與該冷凝段之間,且該第二區段不與該熱源形成重疊。The compound heat pipe as described in item 14 of the patent scope, wherein the second section is a condensing section, a transmission section and another part of the heating section, the condensing section corresponds to a heat dissipation mechanism for heat dissipation The transmission section is located between the heating section and the condensation section, and the second section does not overlap with the heat source. 如申請專利範圍第1項所述之複合式熱管,其中該管體具有一氣流通道,該氣流通道貫穿該第一區段與該第二區段。The composite heat pipe as described in item 1 of the patent application scope, wherein the pipe body has an air flow channel, and the air flow channel penetrates the first section and the second section. 如申請專利範圍第1項所述之複合式熱管,其中該第一毛細結構與該第二毛細結構是以一金屬之粉末以燒結或冶金方式加以完成,該金屬為銅。The composite heat pipe as described in item 1 of the patent application scope, wherein the first capillary structure and the second capillary structure are completed by a powder of a metal by sintering or metallurgy, and the metal is copper.
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