CN101893401A - 平板式热管及其制造方法 - Google Patents

平板式热管及其制造方法 Download PDF

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CN101893401A
CN101893401A CN200910302451.XA CN200910302451A CN101893401A CN 101893401 A CN101893401 A CN 101893401A CN 200910302451 A CN200910302451 A CN 200910302451A CN 101893401 A CN101893401 A CN 101893401A
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support column
plate heat
heat tube
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CN101893401B (zh
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张盛超
周志勇
丁巧利
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Beijing Zhongcai Wyse Education Technology Co ltd
Jiangsu Huayu Printing & Coating Equipment Co ltd
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Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427—Cooling by change of state, e.g. use of heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2240/00—Spacing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49888—Subsequently coating

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Abstract

一种平板式热管的制造方法，包括以下步骤：(A)提供一扁平的壳体，其至少一端具有开口；(B)在所述壳体内表面形成一层毛细结构；(C)提供一承载板，该承载板上开设有若干的穿孔；(D)提供若干支撑柱，将该若干支撑柱插设在承载板上的穿孔内而形成支撑结构；(E)将所述支撑结构塞入所述壳体内，且使支撑柱的上下端面分别抵接在所述壳体上下内壁的毛细结构上；(F)填充工作流体后将壳体的开口进行封口。上述方法制造的平板式热管的支撑结构位于平板式热管内，支撑平板式热管的上下内壁，从而使平板式热管抗压、不易变形，进而不易在运输、使用等过程中损坏而具有稳定的性能。

Description

平板式热管及其制造方法
技术领域
本发明涉及一种平板式热管及其制造方法，特别是指一种性能稳定的平板式热管及其制造方法。
背景技术
随着电子技术的进步，电子元件集成程度日益增高，工作时产生的热量也越来越多。然而电子元件表面积大小却趋向变小，热流密度日益增大，这对电子元件散热十分不利。
业界通常采用均温板(vapor chamber)对这种电子元件散热。这种均温板具有一与电子元件贴设的底盖及与底盖配合的一顶盖。所述底盖及顶盖通过焊接而共同形成一密闭的腔室，若干工作液体及毛细结构收容于该密闭的腔室内。然而，这种均温板在使用时，其底盖及顶盖极易因受压而变形，从而影响其热传导性能。
发明内容
有鉴于此，有必要提供一性能稳定的平板式热管及其制造方法。
一种平板式热管的制造方法，包括以下步骤：(A)提供一扁平的壳体，其至少一端具有开口；(B)在所述壳体内表面形成一层毛细结构；(C)提供一承载板，该承载板上开设有若干的穿孔；(D)提供若干支撑柱，将该若干支撑柱插设在承载板上的穿孔内而形成支撑结构；(E)将所述支撑结构塞入所述壳体内，且使支撑柱的上下端面分别抵接在所述壳体上下侧壁；(F)填充工作流体后将壳体的开口进行封口。
一种平板式热管，包括一扁平板状的密封壳体、形成于壳体内壁的毛细结构、容置于壳体内的工作流体和容置在壳体内的支撑结构，所述支撑结构包括承载板和若干支撑柱，所述承载板上开设若干穿孔，所述支撑柱插置在承载板的穿孔内，且支撑柱的上下端面与壳体上下侧壁抵接。
与现有技术相比，上述平板式热管的支撑结构位于平板式热管内，支撑平板式热管的上下侧壁，从而使平板式热管抗压、不易变形，进而不易在运输、使用等过程中损坏而具有稳定的性能。
下面参照附图，结合具体实施例对本发明作进一步的描述。
附图说明
图1是用于制造本发明第一实施例中平板式热管壳体的金属管体的立体示意图。
图2是图1中金属管体被压扁并在内壁形成烧结式毛细结构时的结构示意图。
图3是本发明第一实施例中平板式热管的支撑结构的示意图。
图4是图3中支撑结构塞入图2中金属管体内的局部剖视图。
图5是本发明第一实施例中平板式热管的立体示意图。
图6是本发明第二实施例中平板式热管的支撑结构的立体示意图。
图7是本发明第三实施例中平板式热管的支撑结构的立体示意图。
具体实施方式
图1至图5所示为本发明第一个实施例中的平板式热管的制造方法，在本实施例中，该平板式热管的具体制造步骤及其过程如下所示：
(1)提供一定长度的的金属管体10，该金属管体10通常为一导热性能良好的铜管。
(2)将金属管体10压扁，使其成为具有一定宽度的、内空的长方形板状壳体11，该壳体11两端各形成一长条形开口。
(3)提供一板形芯模，该芯模的长度及宽度均小于壳体11的长度及宽度，将该芯模塞入壳体11中，再在芯模与壳体11之间填充金属粉末，对壳体11进行高温烧结，使金属粉末烧结于壳体11内壁而形成烧结式毛细结构13，其中该芯模可以是实体芯模，在烧结后抽出，也可以是金属纤维芯模，与金属粉末一起烧结与壳体11内壁。可以理解地，上述毛细结构13可以是其他形式的毛细结构，如丝网、沟槽等。
(4)提供一矩形承载板20，该承载板20的长度及宽度均略小于壳体11的长度及宽度，该承载板20上均匀开设有若干呈矩阵式排列的圆形穿孔22，且这些穿孔22排列成若干等距间隔的纵列及横列。
(5)将若干支撑柱30穿设在承载板20的部分穿孔22内固定而形成热管的支撑结构，优选地，这些支撑柱30呈圆锥台状，其两端大小不等，且外径较大的一端逐渐向较小的一端逐渐缩小，该支撑柱30从承载板20一侧压入穿孔22内，使支撑柱30的中间位置与穿孔22过盈配合而固定于穿孔22内。该承载板20的另一部分穿孔22没有穿置支撑柱30而形成供汽化的工作液体通过的气流通道。这些插置在承载板20内的支撑柱30呈若干相互间隔的纵列或者横列排列，或者是无规则地均匀插置在承载板20上。
优选地，这些支撑柱30分成两组，并分别从承载板20的不同侧插入，既是这些支撑柱30外径较大的一端并不位于承载板20的同一侧，可以是不同列的支撑柱30外径较大的一端交错位于承载板20的不同侧，也可以是一支撑柱30外径较大的一端位于承载板20一侧而与其相邻的支撑柱30外径较大的一端则位于承载板20的另一侧，以达到均匀支撑的作用。此外，所有支撑柱30的上下端面分别位于同一平面上并与承载板20平行。可以理解地，上述支撑柱30并不局限于圆锥台状，其他诸如圆柱状或多棱锥台状等结构也适用；该支撑柱30可以是两端大小不同，且由两端向中间逐渐缩小的形状；该支撑柱30也可以是中间大两端小的形状。
(6)将热管支撑结构塞入壳体11内，使对壳体11的上下面施加压力使支撑柱30上下端面抵接于壳体11的上下内壁的毛细结构13上。
(7)填充相变化工作流体，将壳体11腔体抽成真空，再通过冲压将壳体11两端开口压合在一起来实现对壳体11的封口，而完成平板式热管的制作。
图6所示为本发明第二实施例中的平板式热管用支撑结构，其与第一实施例中的支撑结构的区别主要在于：第二实施例中的支撑结构的承载板40上均匀开设有若干呈矩阵式排列的穿孔42且还开设有若干蒸汽通道44，这些蒸汽通道44的尺寸远大于第一实施例中的支撑结构的穿孔22的尺寸。这些蒸汽通道44可以呈圆形、三角形等各种形状，在本实施例中这些蒸汽通道44为矩形，数量为四且关于承载板40的纵向及横向中线两两对称分布。这些支撑柱30插置于穿孔42内，且呈与承载板40相对两边缘平行且相互间隔的纵列排布，其中数列位于蒸汽通道44之间且至少一列分别位于蒸汽通道44的两侧并靠近承载板40的相对两侧边缘。
如图7所示，本发明第三实施与第一、二实施例的区别在于支撑结构不同，第三实施例中支撑结构包括若干相互平行间隔的长矩形承载板50及插置于承载板50上的支撑柱30，该承载板50上开设有相互等距间隔且沿其纵长方向排列的若干穿孔30。这些支撑柱30等距间隔地插置在穿孔30内固定。
上述第二实施例中的支撑结构在承载板40上开设有若干蒸汽通道44以及第三实施例中的支撑结构的承载板50相互间隔设置，均是为了减少支撑结构在壳体11内占据的空间，以便于气化的工作液体流通，而提高该平板式热管的热传导效率。
上述平板式热管的支撑结构位于平板式热管内，支撑平板式热管的上下内壁，从而使平板式热管抗压、不易变形，进而不易在运输、使用等过程中损坏而具有稳定的性能。
上述平板式热管的支撑结构通过在一板体上冲孔形成承载板20/40/50，再将预先铸造好的支撑柱30压置在承载板20/40/50的穿孔22/42/52内，即可制造完成，可见该支撑结构的结构简单且制造过程简单，便于生产制造。

Claims (10)

1.一种平板式热管的制造方法，包括以下步骤：
(A)提供一扁平的壳体，其至少一端具有开口；
(B)在所述壳体内壁表面形成一层毛细结构；
(C)提供一承载板，该承载板上开设有若干的穿孔；
(D)提供若干支撑柱，将该若干支撑柱插设在承载板上的穿孔内而形成支撑结构；
(E)将所述支撑结构塞入所述壳体内，且使支撑柱的上下端面分别抵接在所述壳体上下侧壁；
(F)填充工作流体后将壳体的开口进行封口。
2.如权利要求1所述的平板式热管的制造方法，其特征在于：所述承载板上形成有若干气流通道。
3.如权利要求1或2所述的平板式热管的制造方法，其特征在于：所述支撑柱的两端外径大小不等，并于支撑柱两端之间的位置过盈配合于所述承载板。
4.如权利要求3所述的平板式热管的制造方法，其特征在于：所述支撑柱呈圆锥台或棱锥台状。
5.如权利要求3所述的平板式热管的制造方法，其特征在于：所述支撑柱分别从承载板的两相对侧插入所述承载板的穿孔内，以使所述支撑柱外径较大的一端分别位于承载板的两相对侧。
6.一种平板式热管，包括一扁平板状的密封壳体、形成于壳体内壁的毛细结构、容置于壳体内的工作流体和容置在壳体内的支撑结构，其特征在于：所述支撑结构包括承载板和若干支撑柱，所述承载板上开设若干穿孔，所述支撑柱插置在承载板的穿孔内，且支撑柱的上下端面与壳体上下侧壁抵接。
7.如权利要求6所述的平板式热管，其特征在于：所述支撑柱的两端外径大小不等，并于支撑柱两端之间的位置过盈配合于所述承载板上。
8.如权利要求7所述的平板式热管的制造方法，其特征在于：所述支撑柱呈圆锥台或棱锥台状。
9.如权利要求7所述的平板式热管，其特征在于：所述支撑柱中有一部分外径较大的一端位于承载板的一侧，而另一部分外径较大的一端位于承载板的另一侧。
10.如权利要求6所述的平板式热管，其特征在于：所述承载板呈矩形，所述承载板上开设有若干相互间隔且尺寸远大于穿孔的蒸汽通道。
CN200910302451.XA 2009-05-19 2009-05-19 平板式热管及其制造方法 Expired - Fee Related CN101893401B (zh)

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CN102589333A (zh) * 2011-01-18 2012-07-18 奇鋐科技股份有限公司 薄型热管结构及其制造方法
US20140082943A1 (en) * 2011-01-18 2014-03-27 Asia Vital Components Co., Ltd. Thin heat pipe structure and method of manufacturing same
CN108204754A (zh) * 2016-12-20 2018-06-26 北京丰联奥睿科技有限公司 一种导热板
CN109405608A (zh) * 2018-03-20 2019-03-01 奇鋐科技股份有限公司 散热装置的中间件及其散热装置
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