CN101957151A - 平板式热管及应用该平板式热管的散热器 - Google Patents
平板式热管及应用该平板式热管的散热器 Download PDFInfo
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- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F28—HEAT EXCHANGE IN GENERAL
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- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
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Abstract
一种平板式热管,其包括一密封的壳体及贴附在壳体内表面的一毛细结构层,该壳体内填充有一定量的工作流体,该壳体内设置有一支撑体,该支撑体包括若干支撑部及连接该若干支撑部的若干本体部,每一支撑部均包括若干交替排列且分别抵顶所述壳体的两相对侧壁的上凸部及下凹部,每一上凸部均与相邻的一下凹部合围形成一第一通孔,用以为工作流体蒸汽流动提供通路。与现有技术相比,本发明的平板式热管内设置有支撑体,该支撑***于壳体内且抵压毛细结构层,能够对其两侧的毛细结构层及壳体提供有力的支撑,防止平板式热管在内、外力的作用下发生变形,以保证平板式热管的平面度。
Description
技术领域
本发明涉及一种传热装置,特别涉及一种平板式热管。
背景技术
电子元件在运行过程中通常产生大量的热量,为确保电子元件正常运行,这些热量需要及时散热出去,该电子元件上通常加装一散热器为其散热。该散热器通常包括一吸热板及设置于该吸热板上的散热鳍片。该吸热板由铜、铝等热传导性良好的金属材料制成,但金属板受制于材料本身有限的热传导性,若对高发热量的电子元件,会产生明显的热阻而无法达到良好散热,影响电子元件的运行稳定性。
为提升散热器的效率,业界亦采用在吸热板内设置一腔体,该腔体内密封有水、乙醇等工作流体,利用工作流体的相变化来提高传热速度。工作时,工作流体在吸热板的吸热区吸热气化到达吸热板的放热区,而后冷却液化。为使液化后的工作流体能更快回流至吸热板的吸热区,该吸热板于腔体周边设置一种毛细结构。毛细结构一般分为粉末烧结毛细结构、网线毛细结构、沟槽毛细结构三种。液化后的工作流体在毛细结构中回流至吸热区参与相变化循环。然而,在使用的过程中,该散热器的吸热板在受到来自外部和内部的压力作用容易出现产品变形,甚至导致吸热板内的毛细结构脱落,严重影响了散热器的散热效率和稳定性。
发明内容
有鉴于此,实有必要提供一种结构稳固的平板式热管及应用该平板式热管的散热器。
一种平板式热管,其包括一密封的壳体及贴附在壳体内表面的一毛细结构层,该壳体内填充有一定量的工作流体,该壳体内设置有一支撑体,该支撑体包括若干支撑部及连接该若干支撑部的若干本体部,每一支撑部均包括若干交替排列且分别抵顶所述壳体的两相对侧壁的上凸部及下凹部,每一上凸部均与相邻的一下凹部合围形成一第一通孔,用以为工作流体蒸汽流动提供通路。
一种散热器,其包括一鳍片组及与鳍片组结合的一平板式热管,该平板式热管包括一密封的壳体及贴附在壳体内表面的一毛细结构层,该壳体内填充有一定量的工作流体,该壳体内设置有一支撑体,该支撑体包括若干支撑部及连接该若干支撑部的若干本体部,每一支撑部均包括若干交替排列且分别抵顶所述壳体的两相对侧壁的上凸部及下凹部,每一上凸部均与相邻的一下凹部合围形成一第一通孔,用以为工作流体蒸汽流动提供通路。
与现有技术相比,本发明散热器的平板式热管内设置有支撑体,该支撑***于壳体内且抵压毛细结构层,能够对其两侧的毛细结构层及壳体提供有力的支撑,防止平板式热管在内、外力的作用下发生变形,以保证平板式热管的平面度。
下面参考附图,结合实施例对本发明作进一步描述。
附图说明
图1是本发明第一实施例散热器的立体图。
图2是图1中散热器沿II-II线的剖视图。
图3是图2中支撑体的立体图。
图4是图3中圈IV部分的放大示意图。
图5是图2中支撑体的截面图。
图6是图5中圈VI部分的放大示意图。
图7-8是本发明其它实施例中支撑体的局部放大图。
图9为本发明第二实施例的散热器的截面图。
图10为图9中支撑体的立体图。
具体实施方式
如图1及图2所示,本发明第一实施例散热器包括一鳍片组10及与鳍片组10结合的一平板式热管20。该鳍片组10包括一基板12及从基板12向上延伸出的若干鳍片14。一热源30与平板式热管20的底部导热接触。
该平板式热管20包括一密封的壳体22、贴附在壳体22内表面的一毛细结构层24及设置在该毛细结构层24内的一支撑体26。该壳体22内填充有一定量的工作流体(未标号),工作流体可以从毛细结构层24顶部回流入毛细结构层24的底部。该毛细结构层24由金属网线编制而成,可以理解地,该毛细结构层24也可由金属粉末烧结而成或由在壳体22内表面上刻沟槽形成。
请同时参照图3及图4,该支撑体26由一金属片通过冲压等工艺一体拉伸而成,其具有一定强度,以对其两侧的毛细结构层24及壳体22提供有力的支撑,防止平板式热管20在内、外力的作用下变形,以保证平板式热管20的平面度。在本实施例中,该支撑体26由一金属片向两侧冲压形成,其包括若干支撑部262及连接该若干支撑部262的若干本体部268。相邻的二支撑部262通过一本体部268连接。每一本体部268为矩形条状,各本体部268均在同一平面内。每一支撑部262均包括若干交替排列且分别抵顶所述壳体22的上、下表面的上凸部264及下凹部266。上凸部264和下凹部266分别位于各本体部268所在平面的相对两侧。沿与支撑部262垂直的方向被各本体部268连接的各上凸部264或下凹部266位于各本体部268所在平面的同一侧。每一上凸部264均与相邻的一下凹部266合围形成一第一通孔267,用以为气态的工作流体蒸汽向壳体22上部流动提供通路。所有的上凸部264顶端都处于同一水平面,以抵压毛细结构层24的上表面,所有的下凹部266底端都处于同一水平面,以抵压毛细结构层24的下表面。在本实施例中,每一上凸部264或下凹部266的截面是梯形(如图5-6所示)。可以理解地,在其它实施例中,支撑体的上凸部或下凹部的截面可以是矩形、半圆形、三角形等形状(如图7、8所示)。
使用时,散热器的平板式热管20底部紧贴热源30吸热,壳体22内的工作流体从其底部吸热气化为蒸汽而上升穿过支撑体26的第一通孔267到达壳体22顶部,气态的工作流体在该处遇冷放出热量而冷却为液态,该热量进而传递至鳍片组10,通过鳍片14散发出去。液态的工作流体通过毛细结构层24顶部流回至毛细结构层24底部进行相变化循环。
图9示出了本发明第二实施例中散热器的截面图,该实施例与第一实施例的不同点在于:第二实施例的散热器的支撑体26a的上凸部264a、下凹部266a及本体部268a开设有若干第二通孔269a(如图10所示),若干铜柱265a穿过支撑体26a的本体部268a开设的第二通孔269a,铜柱265a的两端分别焊接在壳体22a的上、下表面,以进一步对其两侧的壳体22a提供有力的支撑,防止平板式热管20a在内、外力的作用下变形。没有铜柱265a穿过的第二通孔269a可用以为气态的工作流体蒸汽向壳体22a上部流动提供通路。
与现有技术相比,本发明散热器的平板式热管20、20a内设置有支撑体26、26a,该支撑体26、26a位于壳体22、22a内且抵压毛细结构层24、24a,能够对其两侧的毛细结构层24、24a及壳体22、22a提供有力的支撑,防止平板式热管20、20a在内、外力的作用下发生变形,以保证平板式热管20、20a的平面度。
Claims (10)
1.一种平板式热管,其包括一密封的壳体及贴附在壳体内表面的一毛细结构层,该壳体内填充有一定量的工作流体,其特征在于:该壳体内设置有一支撑体,该支撑体包括若干支撑部及连接该若干支撑部的若干本体部,每一支撑部均包括若干交替排列且分别抵顶所述壳体的两相对侧壁的上凸部及下凹部,每一上凸部均与相邻的一下凹部合围形成一第一通孔,用以为工作流体蒸汽流动提供通路。
2.如权利要求1所述的平板式热管,其特征在于:所述每一上凸部或下凹部的截面呈梯形、半圆形或三角形。
3.如权利要求1所述的平板式热管,其特征在于:各本体部均在同一平面内。
4.如权利要求3所述的平板式热管,其特征在于:沿与支撑部垂直的方向被各本体部连接的各上凸部或下凹部位于各本体部所在平面的同一侧。
5.如权利要求1所述的平板式热管,其特征在于:所述支撑体的上凸部、下凹部及本体部开设有若干第二通孔。
6.如权利要求5所述的平板式热管,其特征在于:若干铜柱穿过支撑体的本体部开设的第二通孔,铜柱的两端分别焊接在壳体的两相对侧壁。
7.一种散热器,其包括一鳍片组及与鳍片组结合的一平板式热管,该平板式热管包括一密封的壳体及贴附在壳体内表面的一毛细结构层,该壳体内填充有一定量的工作流体,其特征在于:该壳体内设置有一支撑体,该支撑体包括若干支撑部及连接该若干支撑部的若干本体部,每一支撑部均包括若干交替排列且分别抵顶所述壳体的两相对侧壁的上凸部及下凹部,每一上凸部均与相邻的一下凹部合围形成一第一通孔,用以为工作流体蒸汽流动提供通路。
8.如权利要求7所述的散热器,其特征在于:所述支撑体由一金属片向两侧冲压形成。
9.如权利要求7所述的散热器,其特征在于:所述支撑体的上凸部、下凹部及本体部开设有若干第二通孔。
10.如权利要求9所述的散热器,其特征在于:若干铜柱穿过支撑体的本体部开设的第二通孔,铜柱的两端分别焊接在壳体的两相对侧壁。
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US12/553,997 US8316921B2 (en) | 2009-07-13 | 2009-09-04 | Plate type heat pipe and heat sink using the same |
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US20120325438A1 (en) * | 2011-06-27 | 2012-12-27 | Celsia Technologies Taiwan | Heat pipe with flexible support structure |
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JP3164518B2 (ja) * | 1995-12-21 | 2001-05-08 | 古河電気工業株式会社 | 平面型ヒートパイプ |
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US20030159806A1 (en) * | 2002-02-28 | 2003-08-28 | Sehmbey Maninder Singh | Flat-plate heat-pipe with lanced-offset fin wick |
KR100775013B1 (ko) * | 2006-04-18 | 2007-11-09 | (주)셀시아테크놀러지스한국 | 판형 열전달 장치 |
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2009
- 2009-07-13 CN CN200910304293.1A patent/CN101957151A/zh active Pending
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CN102155858A (zh) * | 2011-04-07 | 2011-08-17 | 大连金三维科技有限公司 | 散热器 |
CN102927484A (zh) * | 2012-11-26 | 2013-02-13 | 殷逢宝 | 一种大功率led灯具 |
CN102927484B (zh) * | 2012-11-26 | 2013-11-20 | 殷逢宝 | 一种大功率led灯具 |
CN113983841A (zh) * | 2021-11-25 | 2022-01-28 | 福建强纶新材料股份有限公司 | 一种新型热管及其制造工艺 |
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US20110005725A1 (en) | 2011-01-13 |
US8316921B2 (en) | 2012-11-27 |
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