CN216385225U - 回路热管 - Google Patents

回路热管 Download PDF

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CN216385225U
CN216385225U CN202123073584.XU CN202123073584U CN216385225U CN 216385225 U CN216385225 U CN 216385225U CN 202123073584 U CN202123073584 U CN 202123073584U CN 216385225 U CN216385225 U CN 216385225U
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陈志伟
范纲铭
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Anhui Weihong Electronic Technology Co ltd
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Abstract

本实用新型提供一种回路热管。回路热管包括壳体，具有入口及出口与一腔室；回路管线，经由该入口及该出口与该壳体连接；毛细结构，设于该腔室内的底面上；导引结构，设于该腔室中并位于部分该毛细结构上，以将该腔室分隔成储水区及蒸发区；以及盖体，与该壳体组合以定义该腔室，并具有对应该蒸发区的传热结构；其中，位于该储水区的工作介质经由该毛细结构流至该蒸发区之后，吸收经该传热结构所传递的发热源的热能后气化，经气化的该工作介质经该导引结构的导引从该出口流出至该回路管线。

Description

回路热管
技术领域
本实用新型涉及散热领域，尤其涉及一种回路热管。
背景技术
根据现代化需求，计算机与各种电子装置发展快速且效能不断地提升，但在此过程中，高效能的硬件所带来的散热问题亦随之而来。一般而言，计算机与各种电子装置通常会使用散热元件来进行散热，例如使用散热膏或散热片来贴附于欲散热的电子元件上，以将热吸出并逸散。然而，此种散热方式效果有限，因而发展出使用工作流体的相变化来促进热传导的散热元件。
然而，上述的散热元件，例如回路热管，其蒸发部受热时，液态工作介质吸收热量而蒸发膨胀成气态时，气态的工作介质往往无法有效流向回路热管的冷凝部，导致整体散热效率不佳。
因此，如何提供一种可解决上述问题的回路热管，是目前业界所亟待克服的课题之一。
实用新型内容
本实用新型的主要目的在于提供一种回路热管，可使气态的工作介质有效地流向回路热管的冷凝部，并提升整体散热效率。
本实用新型的回路热管包括：壳体，其内形成有腔室，且具有入口及出口；回路管线，经由该入口及该出口与该壳体连接；毛细结构，设于该腔室内的底面上；导引结构，设于该腔室中并位于部分该毛细结构上，以将该腔室分隔成储水区及蒸发区；以及盖体，与该壳体组合以定义出该腔室，并具有对应该蒸发区的传热结构；其中，该传热结构贴附于发热源，使位于该储水区的工作介质经由该毛细结构流至该蒸发区之后，吸收经该传热结构所传递的该发热源的热能后气化，而使经气化的该工作介质经该导引结构的导引从该出口流出至该回路管线。
前述的回路热管中，该导引结构具有一开口，且该开口连通该出口。
前述的回路热管中，该导引结构为U型。
前述的回路热管中，该导引结构具有一本体及两个脚部，该两个脚部间隔地朝同一方向延伸而设置于该本体，且该两个脚部之间形成该开口。
前述的回路热管中，该两个脚部分别抵贴该壳体的相对二侧壁，且该本体未抵贴该入口以形成该储水区。
前述的回路热管中，该两个脚部与该本体的交接面为直角或非直角。
前述的回路热管中，该两个脚部间隔地朝该同一方向延伸时彼此之间的距离逐渐缩短，以使该开口的尺寸相符于该出口的尺寸。
前述的回路热管中，该导引结构为电木材质或陶瓷材质所制成。
前述的回路热管中，该开口朝重力方向设置，且该入口及该出口沿该重力方向依序排列。
前述的回路热管中，该盖体为金属板，该传热结构为该金属板上的多个鳍片。
前述的回路热管中，形成该金属板或该多个鳍片的材质为铜或铝。
前述的回路热管中，该毛细结构为颗粒烧结体、网体结构、纤维结构、沟槽或其组合。
前述的回路热管中，该回路管线具有冷凝区，供经气化的该工作介质于该冷凝区液化，以使经液化的该工作介质经由该入口流回至该储水区。
本实用新型的有益效果在于，实用新型回路热管的入口及出口沿重力方向依序排列，故工作介质可通过重力流入壳体，而经气化的工作介质虽会以相反于重力方向上浮，但可通过导引结构的导引而有效地改变气体流向，以流向回路管线的冷凝区进行冷凝及液化。因此，本实用新型回路热管在沿重力方向设置时，经气化的工作介质不会因重力而影响工作介质的循环效率，整体散热效率佳。
附图说明
图1为本实用新型回路热管的整体示意图。
图2为本实用新型回路热管的分解示意图。
图3A为图1中A-A剖线的剖面示意图。
图3B为图1中B-B剖线的剖面示意图。
图4为本实用新型回路热管的另一实施例的剖面示意图。
图5为本实用新型回路热管的再一实施例的剖面示意图。
附图标记如下：
1:回路热管
11:壳体
111:腔室
1111:储水区
1112:蒸发区
112:入口
113:出口
114:侧壁
12:回路管线
13:毛细结构
14:导引结构
141:开口
142:本体
143:脚部
15:盖体
151:传热结构
16:冷凝区
2:发热源
A-F:流向
G:重力方向
具体实施方式
以下借由特定的具体实施例加以说明本实用新型的实施方式，而熟悉此技术的人士可由本说明书所公开的内容轻易地了解本实用新型的其他优点和功效，亦可借由其他不同的具体实施例加以施行或应用。
请参阅图1及图2，本实用新型回路热管1包括壳体11、回路管线12、毛细结构13、导引结构14、盖体15及冷凝区16。壳体11具有相对的入口112与出口113，以及具有相对的二侧壁114。壳体11与盖体15组合后，可于其内部形成腔室111，腔室111可连通入口112与出口113。回路管线12的两端经由出口112与出口113与壳体11连接，并形成一回路，且其内部填充有工作介质，工作介质可在回路管线12及腔室111之间循环流动。另外，回路管线12的一部分可作为冷凝区16，例如可在回路管线12上设置散热鳍片，或是设置水冷排、风扇等散热元件，来对回路管线12中的工作介质进行散热。
毛细结构13设于腔室111的底面上，导引结构14设于腔室111中并位于部分毛细结构13上，以将腔室111分隔成储水区1111及蒸发区1112，如图3A所示，也就是说，毛细结构13横跨储水区1111及蒸发区1112。具体而言，导引结构14具有一本体142及两个脚部143，两个脚部143间隔地朝同一方向延伸而设置于本体142，且两个脚部143之间形成一开口141，以使开口141连通出口113。在导引结构14设于腔室111中之后，两个脚部143分别抵贴壳体11的二侧壁114，而本体142与入口112相间隔而未抵贴入口112，故入口112与本体142之间可形成储水区1111。另外，两个脚部143与本体142可围绕界定出蒸发区1112。另外，导引结构14可为导热性差的隔热材质，例如电木材质或陶瓷材质，但本实用新型并不以此为限。
于一实施例中，导引结构14具体可为U型。
于一实施例中，如图3A所示，两个脚部143与本体142位在蒸发区1112的交接面为非直角(例如为弧形)。在其他实施例中，如图4所示，两个脚部143与本体142位在蒸发区1112的交接面为直角。
再于一实施例中，如图3A所示，两个脚部143间隔且平行地朝同一方向延伸，且彼此之间的距离并未缩短，此时开口141的大小大于出口113。于其他实施例中，如图5所示，两个脚部143间隔地朝同一方向延伸时彼此之间的距离逐渐缩短，以使开口141的尺寸相符于出口113的尺寸。
盖体15具有传热结构151，传热结构151于盖体15与壳体11组合后可对应蒸发区1112。另外，盖体15与壳体11组合后，盖体15抵接导引结构14，这使得储水区1111及蒸发区1112彼此不连通，工作介质仅能通过毛细结构13在储水区1111及蒸发区1112之间流动。在本实施例中，盖体15为金属板，传热结构151可为金属板上的切削式的多个鳍片(skivedfin)。在其他实施例中，传热结构151可为其他柱状、片状、甚至是不规则的形状的鳍片，只要能够增加与工作介质接触的面积，让热能更快传递至工作介质即可，本实用新型并不限制传热结构151的具体结构。另外，金属板或多个鳍片的材质可为铜或铝，但本实用新型并不以此为限。
于一实施例中，毛细结构13为颗粒烧结体、网体结构、纤维结构、沟槽或其组合，其中，颗粒烧结体是指以金属粉末烧结所形成的具有多个毛细孔或相连通孔洞的组织或结构，网体结构是指以金属编织成的具有多个网目的编织网结构，纤维是指由连续或不连续的金属细丝所组成的结构，沟槽是指使用蚀刻工艺在壳体11的底面上，蚀刻出凹陷于底面的多个柱体，多个柱体彼此之间的间隙可构成相互连通的多个沟槽。
本实用新型回路热管1在应用时，可将导引结构14的开口141朝重力方向G设置，使得入口112及出口113沿重力方向G依序排列，即入口112位于出口113上方。另外，将传热结构151贴附于发热源，使传热结构15可传递发热源的热能。在回路管线12内液态的工作介质通过重力可经由入口112进入至储水区1111(流向A)，位于储水区1111的工作介质可通过毛细作用而经由毛细结构13流至蒸发区1112(流向B、C)。由于蒸发区1112对应传热结构151，故位于蒸发区1112的工作介质可吸收传热结构151所传递的发热源的热能，进而气化成气态。经气化的工作介质在蒸发区1112中四散(流向D)，且因为导引结构14的阻隔而无法流动至储水区1111及入口112，进而碰撞到导引结构14的本体142及两个脚部143之后，可沿着本体及两个脚部143导流至出口113(流向E)(或是在蒸发区1112中通过导引结构14来持续累积经气化的工作介质，达一定压力后从出口113宣泄)，接着经气化的工作介质即可流出至回路管线12(流向F)。经气化的工作介质于冷凝区16中冷凝并液化，经液化的工作介质可流回入口112并进入储水区1111(流向A)，以进行下一次的散热循环。
于一实施例中，图3A中所示的导引结构14对经气化的工作介质所产生的导引效果，将佳于图4中所示的导引结构14。而图5中所示的导引结构14对经气化的工作介质所产生的导引效果，将佳于图3A中所示的导引结构14。但本实用新型并不限定导引结构14的具体型态。
综上所述，本实用新型回路热管1的入口112及出口113沿重力方向G依序排列，故工作介质可通过重力流入壳体11，而经气化的工作介质虽会以相反于重力方向G上浮，但可通过导引结构14的导引而有效地改变气体流向，以流向回路管线12的冷凝区16进行冷凝及液化。因此，本实用新型回路热管1在沿重力方向G设置时，经气化的工作介质不会因重力而影响工作介质的循环效率，整体散热效率佳。
上述实施形态仅为例示性说明本实用新型的技术原理、特点及其功效，并非用以限制本实用新型的可实施范畴，本领域技术人员均可在不违背本实用新型的精神与范畴下，对上述实施形态进行修饰与改变。然而任何运用本实用新型所教示内容而完成的等效修饰及改变，均仍应为权利要求范围所涵盖。而本实用新型的权利保护范围，应如权利要求书所列。

Claims (13)

1.一种回路热管，其特征在于，包括：
壳体，其内形成有腔室，且具有入口及出口；
回路管线，经由该入口及该出口与该壳体连接；
毛细结构，设于该腔室内的底面上；
导引结构，设于该腔室中并位于部分该毛细结构上，以将该腔室分隔成储水区及蒸发区；以及
盖体，与该壳体组合以定义出该腔室，并具有对应该蒸发区的传热结构；
其中，该传热结构贴附于发热源，使位于该储水区的工作介质经由该毛细结构流至该蒸发区之后，吸收经该传热结构所传递的该发热源的热能后气化，而使经气化的该工作介质经该导引结构的导引从该出口流出至该回路管线。
2.如权利要求1所述的回路热管，其特征在于，该导引结构具有一开口，且该开口连通该出口。
3.如权利要求2所述的回路热管，其特征在于，该导引结构为U型。
4.如权利要求2所述的回路热管，其特征在于，该导引结构具有一本体及两个脚部，该两个脚部间隔地朝同一方向延伸而设置于该本体，且该两个脚部之间形成该开口。
5.如权利要求4所述的回路热管，其特征在于，该两个脚部分别抵贴该壳体的相对二侧壁，且该本体未抵贴该入口以形成该储水区。
6.如权利要求4所述的回路热管，其特征在于，该两个脚部与该本体的交接面为直角或非直角。
7.如权利要求4所述的回路热管，其特征在于，该两个脚部间隔地朝该同一方向延伸时彼此之间的距离逐渐缩短，以使该开口的尺寸相符于该出口的尺寸。
8.如权利要求2所述的回路热管，其特征在于，该导引结构为电木材质或陶瓷材质所制成。
9.如权利要求2所述的回路热管，其特征在于，该开口朝重力方向设置，且该入口及该出口沿该重力方向依序排列。
10.如权利要求1所述的回路热管，其特征在于，该盖体为金属板，该传热结构为该金属板上的多个鳍片。
11.如权利要求10所述的回路热管，其特征在于，形成该金属板或该多个鳍片的材质为铜或铝。
12.如权利要求1所述的回路热管，其特征在于，该毛细结构为颗粒烧结体、网体结构、纤维结构、沟槽或其组合。
13.如权利要求1所述的回路热管，其特征在于，该回路管线具有冷凝区，供经气化的该工作介质于该冷凝区液化，以使经液化的该工作介质经由该入口流回至该储水区。
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