CN101782337A - 微通道换热器 - Google Patents

微通道换热器 Download PDF

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CN101782337A
CN101782337A CN200910002435A CN200910002435A CN101782337A CN 101782337 A CN101782337 A CN 101782337A CN 200910002435 A CN200910002435 A CN 200910002435A CN 200910002435 A CN200910002435 A CN 200910002435A CN 101782337 A CN101782337 A CN 101782337A
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micro
heat exchanger
bending part
fin
channel
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刘华钊
汪峰
高原
黄宁杰
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Sanhua Holding Group Co Ltd
Danfoss AS
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Danfoss Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
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Priority to CN200910002435A priority Critical patent/CN101782337A/zh
Priority to US12/690,576 priority patent/US20100181058A1/en
Publication of CN101782337A publication Critical patent/CN101782337A/zh
Priority to US14/060,063 priority patent/US9115939B2/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • 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
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05383Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits
    • 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
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D2001/0253Particular components
    • F28D2001/026Cores
    • F28D2001/0266Particular core assemblies, e.g. having different orientations or having different geometric features
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00Fins
    • F28F2215/04Assemblies of fins having different features, e.g. with different fin densities
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2260/00Heat exchangers or heat exchange elements having special size, e.g. microstructures
    • F28F2260/02Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

本发明公开了一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,该微通道换热器设有至少一个折弯部,每个折弯部包括至少一列翅片,该至少一列翅片在折弯部内侧的宽度小于该折弯部相邻两边的翅片宽度。通过降低折弯部内侧的翅片宽度在折弯部的内侧形成了挤压应力释放空间,从而避免了该弯部内侧的相邻两边的翅片因受挤压而变形,同时还保持折弯部的通风和换热功能。

Description

微通道换热器
技术领域
本发明涉及一种换热器,尤其涉及一种微通道换热器。
背景技术
微通道换热器与传统换热器相比,具有换热效率高、工质用量少等优点。由于当今世界人们对保护环境和节约能源的要求越来越高,因此微通道换热器凭借自身的优势在很多行业中得到广泛的应用,例如空调行业、汽车行业、化工机械行业。
由于设计上的特定要求或安装空间的限制,有时微通道换热器整体上往往不是平板式的,而是会有一个或多个弯部,以与特定的安装空间相配。在现有技术中,这种弯部有些是通过将微通道换热器沿集流管长度方向进行折弯而形成的。在折弯过程中,换热器内侧的翅片因受到挤压而产生倒片、扭曲等变形,从而影响了换热器的换热性能,换热器的外表也显得不美观。而且折弯外侧的集流管与扁管焊接部位会被撕裂,导致换热器爆破压力降低。为了解决折弯处翅片变形的问题,公开号为No.EP1962040A1的欧洲专利申请公开了一种微通道换热器,该微通道换热器在折弯的地方设置了U型挤压释放间隔件,从而避免折弯处周围的翅片变形。
发明内容
本发明的目的是提供一种微通道换热器,该微通道换热器沿集流管长度方向折弯时能有效防止弯部附近的翅片变形。
为了达到上述目的,本发明微通道换热器采用了以下几种技术方案。
方案一:一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,该微通道换热器设有至少一个折弯部,每个折弯部包括至少一列翅片,该至少一列翅片在折弯部内侧的宽度小于该折弯部相邻两边的翅片宽度。
该方案通过降低折弯部内侧的翅片宽度在折弯部的内侧形成了挤压应力释放空间,从而避免了该弯部内侧的相邻两边的翅片因受挤压而变形,同时还保持折弯部的通风和换热功能。
方案二:一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,该微通道换热器设有至少一个折弯部,每个折弯部包括至少一列翅片,该至少一列翅片中至少有一列翅片间距大于该折弯部相邻两边的翅片间距。
由于折弯部的翅片间距大于相邻两边的翅片间距,则在折弯时该折弯部的翅片因所受支撑力相对较弱而先变形,从而有效防止了折弯部周围的翅片变形;另外,由于折弯部的翅片间距较大,被压倒后仍然有允许空气通过的较大空隙,因此能保持折弯部的通风和换热功能。
方案三:一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,该微通道换热器设有至少一个折弯部,每个折弯部具有将微通道换热器芯体间隔开的间隔空间。
通过在折弯部设置专门的间隔空间从根本上避免了翅片变形的问题,因为在该间隔空间中没有翅片和扁管,折弯时只要将集流管折弯即可。
方案四:一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,该微通道换热器包括至少两片换热器芯体,每片换热器芯体的集流管分别通过弯管与另一换热器芯体的集流管形成密封连接,换热器芯体之间形成弯部。
该方案通过弯管拼接换热器芯体的方式形成所需的弯部,避免直接折弯换热器芯体,因此不会产生因折弯换热器芯片而使翅片变形的问题。
附图说明
图1为本发明微通道换热器的第一优选实施例的局部立体示意图;
图2为本发明微通道换热器的第二优选实施例的局部立体示意图;
图3为本发明微通道换热器的第三优选实施例的正视图;
图4为图3所示实施例的局部放大图;
图5为本发明微通道换热器的第四优选实施例的立体示意图;
图6为本发明微通道换热器的第五优选实施例的立体示意图。
具体实施方式
现结合附图来描述本发明微通道换热器的各种实施例,需说明的是下面描述的各种实施例只是用来说明本发明,并没有限制本发明的意图。
图1示出了本发明微通道换热器的第一个优选实施例的局部立体示意图。该微通道换热器包括上集流管11a、下集流管12a(见图3)、分别连接上集流管11a和下集流管12a的多根微通道扁管21a和由微通道扁管21a间隔开的多列翅片31a。每根微通道扁管21a的两个端部分别插入上集流管11a和下集流管12a的内部,并通过密封连接的方式相互固定在一起。翅片31a固定在微通道扁管21a上。微通道扁管21a的内部都设有一排微通道211,这些微通道211沿扁管21a的纵向延伸直至该扁管21a的两个端面。在本实施例中,上集流管11a、下集流管12a和微通道扁管21a都是由铝合金材料制成。
如图1所示,在本实施例中,微通道换热器设有一个折弯部,该折弯部包括一列翅片41a,该列翅片41a在折弯部内侧的宽度小于该折弯部相邻两边的翅片31a的宽度。这样就在折弯部的内侧形成一个挤压应力释放空间A。当按图1所示的箭头方向X沿折弯部折弯该微通道换热器时,由于扁管21a位于空间A两侧的部分不受支撑力,因此很容易沿X方向相互靠近,从而释放了位于该空间A两侧附近的翅片31a所受到的挤压应力。其中,翅片41a在折弯部内侧的具体宽度主要根据折弯半径来确定,翅片41a在折弯部内侧的宽度随着折弯半径的增大而减小。
图2示出了本发明微通道换热器的第二个优选实施例的局部立体示意图。与第一个实施例一样,该微通道换热器包括上集流管11a、下集流管12a(见图3)、分别连接上集流管11a和下集流管12a的多根微通道扁管21b和由微通道扁管21b间隔开的多列翅片31b。如图2所示,每个折弯部包括两列翅片41b和位于这两列翅片之间的扁管51,该两列翅片41b在折弯部内侧的宽度均小于该折弯部内侧相邻两边的翅片31b的宽度,该扁管51在折弯部内侧的宽度则小于该折弯部内侧相邻两边的扁管21b的宽度。这样就在折弯部的内侧形成一个挤压应力释放空间B。当按图2所示的箭头方向X沿折弯部折弯该微通道换热器时,由于扁管21b位于空间B两侧的部分不受支撑力,因此很容易沿X方向相互靠近,从而释放了位于该空间B两侧附近的翅片31b所受到的挤压应力。为了让微通道换热器更加容易弯曲,以避免折变部附近的翅片变形,两列翅片41b在折弯部外侧的宽度小于该折弯部外侧相邻两边的翅片31b的宽度,扁管51在折弯部外侧的宽度则小于该折弯部外侧相邻两边的扁管21b的宽度,从而在折弯部的外侧形成了空间C。
图3和图4则示出了本发明微通道换热器的第三个优选实施例。该微通道换热器包括上集流管11a、下集流管12a、分别连接上集流管11a和下集流管12a的多根微通道扁管21c和由微通道扁管21c间隔开的多列翅片31c。如图3所示,折弯部D包括五列翅片,其中,三列翅片41c的翅片间距大于该折弯部相邻两边的翅片31c的翅片间距,另外两列翅片42c的翅片间距则与翅片31c相同。当然,在本发明的其它实施例中,翅片42c的翅片间距也可以与翅片41c相同。三列翅片41c分别间隔地布置在两列翅片42c的两侧。
图5示出了本发明微通道换热器的第四个优选实施例。如图所示,该微通道换热器包括上集流管11b和下集流管12b。在本实施例中,微通道换热器设有一个折弯部,该折弯部具有将微通道换热器芯体间隔开的间隔空间61。在间隔空间61中没有设置翅片和扁管,因此上集流管11b和下集流管12b对应该间隔空间的部分上没有用来接纳扁管端部的槽,因此该换热器折弯更加容易,更不会产生翅片因受折弯挤压而变形的问题。
图6示出了本发明微通道换热器的第五个优选实施例。如图所示,该微通道换热器包括两个换热器芯片1a和1b。当然在本发明的其它实施例中,微通道换热器可以包括三个或更多的换热器芯片。换热器芯片1a包括上集流管11c和下集流管12c。类似地,换热器芯片1b则包括上集流管11d和下集流管12d。其中,弯管71分别套在上集流管11c和上集流管11d的一端上,并通过焊接与这两个集流管密封地固定在一起;同样地,弯管72分别套在下集流管12c和下集流管12d,并通过焊接与这两个集流管密封地固定在一起,这样就在两个换热器芯片1a和1b之间形成一个弯部。弯管71的内部则与上集流管11c和上集流管11d相通,工质可以在它们之间流动。弯管72的内部则与下集流管12c和下集流管12d相通,工质也可以在它们之间流动。通过调节弯管71和72的尺寸可以调节弯部的弯曲半径。通过弯管连接的两个换热器芯片1a和1b之间会形成一定的空隙,为了不让风从该空隙中穿过,在该空隙中设置了挡风板81。挡风板81的上下两端分别通过焊接方式与弯管71和72固定在一起。

Claims (10)

1.一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,其特征在于:该微通道换热器设有至少一个折弯部,每个折弯部包括至少一列翅片,该至少一列翅片在折弯部内侧的宽度小于该折弯部内侧相邻两边的翅片宽度。
2.根据权利要求1所述的微通道换热器,其特征在于:折弯部内侧的翅片宽度随折弯半径的增大而减小。
3.根据权利要求1或2所述的微通道换热器,其特征在于:每个折弯部包括一列翅片。
4.根据权利要求1或2所述的微通道换热器,其特征在于:每个折弯部包括两列翅片和位于这两列翅片之间的扁管,该两列翅片在折弯部内侧的宽度均小于该折弯部内侧相邻两边的翅片宽度,该扁管在折弯部内侧的宽度则小于该折弯部内侧相邻两边的扁管宽度。
5.一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,其特征在于:该微通道换热器设有至少一个折弯部,每个折弯部包括至少一列翅片,该至少一列翅片中至少有一列翅片间距大于该折弯部相邻两边的翅片间距。
6.根据权利要求5所述的微通道换热器,其特征在于:每个折弯部包括五列翅片,其中三列的翅片间距大于该折弯部相邻两边的翅片间距,该三列翅片间隔布置在另外两列翅片的两侧。
7.一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,其特征在于:该微通道换热器设有至少一个折弯部,每个折弯部具有将微通道换热器芯体间隔开的间隔空间。
8.一种微通道换热器,其包括集流管、连接集流管的多根微通道扁管和由微通道扁管间隔开的多列翅片,其特征在于:该微通道换热器包括至少两片换热器芯体,每片换热器芯体的集流管分别通过弯管与另一换热器芯体的集流管形成密封连接,换热器芯体之间形成弯部。
9.根据权利要求8所述的微通道换热器,其特征在于:弯部设有挡风板。
10.根据权利要求9所述的微通道换热器,其特征在于:挡风板的两端分别固定在弯管上。
CN200910002435A 2009-01-20 2009-01-20 微通道换热器 Pending CN101782337A (zh)

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CN101995172B (zh) * 2010-11-02 2013-01-02 金龙精密铜管集团股份有限公司 微通道换热器以及应用该微通道换热器的设备
CN102829576A (zh) * 2012-08-01 2012-12-19 浙江盾安人工环境股份有限公司 一种微通道换热器
CN104981674B (zh) * 2013-02-08 2018-11-09 特灵国际有限公司 微通道热交换器
CN104981674A (zh) * 2013-02-08 2015-10-14 特灵国际有限公司 微通道热交换器
CN103411446A (zh) * 2013-08-28 2013-11-27 杭州三花微通道换热器有限公司 换热器
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CN105258532A (zh) * 2013-08-28 2016-01-20 杭州三花微通道换热器有限公司 换热器
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US10539373B2 (en) 2013-08-28 2020-01-21 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Heat exchanger
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WO2015158176A1 (zh) * 2014-04-16 2015-10-22 杭州三花微通道换热器有限公司 翅片和具有该翅片的折弯式换热器
US10539374B2 (en) 2014-04-16 2020-01-21 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Fin and bending type heat exchanger having the fin
CN104567507A (zh) * 2014-12-03 2015-04-29 广东美的制冷设备有限公司 换热器及其翅带结构
CN106052249A (zh) * 2015-04-01 2016-10-26 三星电子株式会社 冰箱及其中使用的热交换器
CN105651081A (zh) * 2015-12-30 2016-06-08 杭州三花微通道换热器有限公司 双排折弯式换热器及其制造方法
US11085701B2 (en) 2015-12-30 2021-08-10 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Double-row bent heat exchanger
CN107990598A (zh) * 2016-10-26 2018-05-04 盾安环境技术有限公司 微通道换热器
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CN108020099A (zh) * 2016-10-28 2018-05-11 盾安环境技术有限公司 一种微通道换热器
CN108020099B (zh) * 2016-10-28 2021-03-30 盾安环境技术有限公司 一种微通道换热器
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