CN101943532A - 回路热管 - Google Patents

回路热管 Download PDF

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Publication number
CN101943532A
CN101943532A CN200910303992.4A CN200910303992A CN101943532A CN 101943532 A CN101943532 A CN 101943532A CN 200910303992 A CN200910303992 A CN 200910303992A CN 101943532 A CN101943532 A CN 101943532A
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capillary structure
steam
evaporation part
loop heat
heat pipe
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侯春树
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Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
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Hong Jun Precision Industry Co ltd
Fuzhun Precision Industry Shenzhen Co Ltd
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Priority to CN200910303992.4A priority Critical patent/CN101943532A/zh
Priority to US12/549,388 priority patent/US20110000647A1/en
Publication of CN101943532A publication Critical patent/CN101943532A/zh
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • F28D15/04Heat-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
    • F28D15/046Heat-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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-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
    • F28D15/02Heat-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
    • F28D15/04Heat-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
    • F28D15/043Heat-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 forming loops, e.g. capillary pumped loops
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427Cooling by change of state, e.g. use of heat pipes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/18Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes sintered
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/0002Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

一种回路热管,包括一与热源接触的蒸发部及与所述蒸发部密封连接的一绕性热管,所述蒸发部具有一蒸汽出口及与所述蒸汽出口连通的一液体入口,所述蒸发部内部设置有第一毛细结构及工作介质,所述绕性热管包括一与蒸发部的蒸汽出口连接的蒸汽管线及与液体入口连接的一液体管线,所述蒸汽管线的内壁上设置有与蒸发部的第一毛细结构连通的一第二毛细结构。与传统的回路热管相比,本发明中,因蒸汽管线内壁一侧铺设有第二毛细结构,蒸汽管线内因冷凝而产生的少量液态工作介质可快速的被其内部的第二毛细结构吸收,从而避免了其内的汽态工作介质产生阻塞。

Description

回路热管
技术领域
本发明涉及一种散热装置,特别是指一种回路热管。
背景技术
回路热管广泛用于电子产业,用于对发热电子元件散热。
目前回路式热管包括一蒸发部及与所述蒸发部密封连接的一绕性管路。所述蒸发部包括一蒸汽出口及与所述蒸汽出口连通的一液体入口。所述绕性管路的一端与所述蒸发部的蒸汽出口连接,另一端与所述蒸发部的液体入口连接。所述绕性管路与蒸汽出口连接的部分为蒸汽管线,与液体入口连接的部分为液体管线。蒸发部内部的工作介质受热产生的蒸汽自蒸汽出口进入蒸汽管线。同时,蒸汽管线向外辐射热量,使其内的蒸汽冷却,然后使冷却后的工作介质沿液体管线流动,自液体入口回流至蒸发部。所述蒸汽管线通常为一光滑管,其内部不具有毛细结构,故其对冷却的液体无法作有效的引导。当蒸汽管线内出现冷却液体时,这些液体阻塞蒸汽管线内蒸汽的流动,使管路内的工作介质不能及时地回流至蒸发部中,使蒸发部发生干烧现象,进而导致回路热管性能的失效。
发明内容
有鉴于此,有必要提供一种具有高散热效率且性能稳定的回路热管。
一种回路热管,包括一与热源接触的蒸发部及与所述蒸发部密封连接的一绕性热管,所述蒸发部具有一蒸汽出口及与所述蒸汽出口连通的一液体入口,所述蒸发部内部设置有第一毛细结构及工作介质,所述绕性管路包括一与蒸发部的蒸汽出口连接的蒸汽管线及与液体入口连接的一液体管线,所述蒸汽管线的内壁上设置有与蒸发部的第一毛细结构连通的一第二毛细结构。
与传统的回路热管相比,本发明中,因蒸汽管线内壁一侧铺设有第二毛细结构,蒸汽管线内因冷凝而产生的少量液态工作介质可快速的被其内部的第二毛细结构吸收,从而避免了其内的汽态工作介质产生阻塞。
附图说明
图1为本发明回路热管的示意图。
具体实施方式
如图1所示,为本发明的一回路热管。该回路热管包括一与热源贴设的蒸发部10及与该蒸发部10密封连接的一绕性管路20。若干工作介质收容于该回路热管内。
该蒸发部10包括一金属壳体11及贴设于壳体11内壁的一第一毛细结构13。该蒸发部10可以具有多种形状,如长方形、正方形、圆柱状等,其具体的形状根据与其配合的热源的形状决定。在本实施例中,该蒸发部10呈圆柱状,且关于其水平的中心轴对称设置。
该蒸发部10的壳体11包括一与热源接触的吸热部112及自吸热部112的一端向外延伸的一伸展部114。该伸展部114的直径大于吸热部112的直径,用于储存液态工作介质。该吸热部112的另一端中部开设有一蒸汽出口1121。该伸展部114远离吸热部112一端的中部开设有一液体入口1141。该第一毛细结构13具有一封闭段132及自封闭段132延伸的一开口段134。该封闭段132贴设于吸热部112内表面且抵顶吸热部112蒸汽出口1121对应的侧壁。该开口段134贴设于伸展部114内表面,且其开口对应液体入口1141。
所述储液槽137包括位于封闭段132中部的第一储液槽1371及位于开口段134中部的第二储液槽1373。该第一、第二储液槽1371、1373相互连通,且第二储液槽1373的直径大于第一储液槽1371的直径。第一储液槽1371用于收容第一毛细结构13封闭段132内的液态工作介质及由这些液态工作介质受热而形成的汽态工作介质。第二储液槽1373用于收容自管路20回流的液态工作介质。
所述绕性管路20一端与蒸发部10的蒸汽出口1121密封连接,另一端与液体入口1141密封连接。该管路20与蒸汽出口1121连接的部分为蒸汽管线21,其与液体入口1141连接的部分为液体管线22。所述蒸汽管线21及液体管线22内壁上铺设有一连续的第二毛细结构24。该第二毛细结构24可铺设于管路20的整个内壁或内壁的一侧。在本实施例中,为增大工作介质在管路20内流通的空间,第二毛细结构24仅铺设于管路20内壁的一侧。该第二毛细结构24沿管路20的内壁连续设置且其相对两端分别与蒸发部10内的第一毛细结构13的相对两端连通设置。如此,蒸汽管线21内因冷凝而产生的少量液态工作介质可快速的被其内部的第二毛细结构24吸收,从而避免了其内的汽态工作介质产生阻塞。同时,由于第一、第二毛细结构13、24的牵引作用,使管路20内部的工作介质沿第二毛细结构24延伸的方向流动,从而加速了工作介质回流至蒸发部10的速度,确保了回路热管的稳定性。
使用时,蒸发部10壳体11的吸热部112吸收热源的热量,其内壁上的第一毛细结构13受热而导致其内部的工作介质蒸发形成汽态工作介质,从而带走这些热量。汽态工作介质自蒸汽出口1121进入蒸汽管线21。由于第一、第二毛细结构13、24的牵引,这些汽态工作介质朝向蒸发部10内的第二储液槽1373运动,同时蒸汽管线21向外辐射热量而使蒸汽管线21内的汽态工作介质冷却而形成液态工作介质。液态工作介质在第一、第二毛细结构13、24的牵引作用下,进入液体管线22,然后通过液体入口1141进入蒸发部10的第二储液槽1373中。为加快蒸汽管线21内汽态工作介质的冷却,可在蒸汽管线21外部贴设一散热装置,在本实施例中,该散热装置为一道热板30。
可以理解地,本发明中的第一、第二毛细结构13、24可以是沟槽式毛细结构、烧结式毛细结构、编织网毛细结构或纤维状毛细结构。
可以理解地,本发明中,因蒸汽管线21内壁一侧铺设有第二毛细结构24,蒸汽管线21内因冷凝而产生的少量液态工作介质可快速的被其内部的第二毛细结构24吸收,从而避免了其内的汽态工作介质产生阻塞。

Claims (9)

1.一种回路热管,包括一与热源接触的蒸发部及与所述蒸发部密封连接的一绕性管路,所述蒸发部具有一蒸汽出口及与所述蒸汽出口连通的一液体入口,所述蒸发部内部设置有第一毛细结构及工作介质,所述绕性管路包括一与蒸发部的蒸汽出口连接的蒸汽管线及与液体入口连接的一液体管线,其特征在于:所述蒸汽管线的内壁上设置有与蒸发部的第一毛细结构连通的一第二毛细结构。
2.如权利要求1所述的回路热管,其特征在于:所述第二毛细结构位于所述蒸汽管线内壁的一侧。
3.如权利要求1所述的回路热管,其特征在于:所述液体管线及蒸汽管线内壁的一侧均设置有与第一毛细结构连通的第二毛细结构。
4.如权利要求1所述的回路热管,其特征在于:所述第一、第二毛细结构可为沟槽式毛细结构、烧结式毛细结构、编织网毛细结构或纤维状毛细结构。
5.如权利要求1所述的回路热管,其特征在于:所述蒸发部的壳体包括一与热源贴设的吸热部及自吸热部一端延伸的一伸展部,所述伸展部用于收容液态工作介质。
6.如权利要求5所述的回路热管,其特征在于:所述第一毛细结构贴设于整个蒸发部的内表面。
7.如权利要求1所述的回路热管,其特征在于:所述第一毛细结构具有一封闭段及自封闭段延伸的一开口段,该封闭段抵顶该蒸发部蒸汽出口对应一侧的壁面,该开口段的开口对应所述液体入口。
8.如权利要求1所述的回路热管,其特征在于:进一步包括贴设所述蒸汽管线的一冷凝部。
9.如权利要求8所述的回路热管,其特征在于:所述冷凝部为一金属导热板。
CN200910303992.4A 2009-07-03 2009-07-03 回路热管 Pending CN101943532A (zh)

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CN200910303992.4A CN101943532A (zh) 2009-07-03 2009-07-03 回路热管
US12/549,388 US20110000647A1 (en) 2009-07-03 2009-08-28 Loop heat pipe

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105841527A (zh) * 2016-03-28 2016-08-10 天津商业大学 蒸发器为环形结构的相变驱动环路热管
CN106998641A (zh) * 2016-01-25 2017-08-01 昆山巨仲电子有限公司 一种具有回路的均温板
CN108332593A (zh) * 2018-03-27 2018-07-27 中山伟强科技有限公司 一种多通道回路型均温板
CN110550241A (zh) * 2019-07-24 2019-12-10 中国空间技术研究院 一种非均匀内角结构式储液器
WO2020143121A1 (zh) * 2019-01-11 2020-07-16 青岛海尔空调器有限总公司 芯片换热器及变频空调器

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US9453688B2 (en) * 2013-09-24 2016-09-27 Asia Vital Components Co., Ltd. Heat dissipation unit
CN106535565B (zh) * 2016-10-26 2019-04-12 维沃移动通信有限公司 一种移动终端散热结构及移动终端
US20190154352A1 (en) * 2017-11-22 2019-05-23 Asia Vital Components (China) Co., Ltd. Loop heat pipe structure
US10907910B2 (en) * 2018-01-19 2021-02-02 Asia Vital Components Co., Ltd Vapor-liquid phase fluid heat transfer module
JP7236825B2 (ja) * 2018-07-11 2023-03-10 新光電気工業株式会社 ループ型ヒートパイプ及びその製造方法

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US4008615A (en) * 1975-04-28 1977-02-22 Emhart Industries, Inc. Temperature averaging device
US4883116A (en) * 1989-01-31 1989-11-28 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Ceramic heat pipe wick

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106998641A (zh) * 2016-01-25 2017-08-01 昆山巨仲电子有限公司 一种具有回路的均温板
CN105841527A (zh) * 2016-03-28 2016-08-10 天津商业大学 蒸发器为环形结构的相变驱动环路热管
CN108332593A (zh) * 2018-03-27 2018-07-27 中山伟强科技有限公司 一种多通道回路型均温板
WO2020143121A1 (zh) * 2019-01-11 2020-07-16 青岛海尔空调器有限总公司 芯片换热器及变频空调器
CN110550241A (zh) * 2019-07-24 2019-12-10 中国空间技术研究院 一种非均匀内角结构式储液器

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Application publication date: 20110112