CN103608636A - 蛇形热交换器 - Google Patents

蛇形热交换器 Download PDF

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CN103608636A
CN103608636A CN201280029492.6A CN201280029492A CN103608636A CN 103608636 A CN103608636 A CN 103608636A CN 201280029492 A CN201280029492 A CN 201280029492A CN 103608636 A CN103608636 A CN 103608636A
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pipe
heat exchanger
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高松由和
中村将之
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Marelli Corp
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Calsonic Kansei Corp
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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
    • F28D1/00—Heat-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
    • F28D1/02—Heat-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
    • F28D1/04—Heat-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
    • F28D1/047—Heat-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 bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—Heat-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 bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • 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
    • F28D1/00—Heat-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
    • F28D1/02—Heat-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
    • F28D1/03—Heat-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 plate-like or laminated conduits
    • F28D1/0308—Heat-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 plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • 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
    • F28D1/00—Heat-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
    • F28D1/02—Heat-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
    • F28D1/03—Heat-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 plate-like or laminated conduits
    • F28D1/0358—Heat-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 plate-like or laminated conduits the conduits being formed by bent plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular 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
    • F28F1/126—Tubular 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/424—Means comprising outside portions integral with inside portions
    • F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • 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
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

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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

本发明提供一种热交换器。蛇形热交换器包括：管，通过将冲压成形得到的两片管片材贴合而构成该管，该管呈蛇形折返；波纹翅片，其配置在由折返的管夹着的空间内。在管的折返部的内部空开间隔地形成有自一个管片材突出且与另一个管片材抵接的多个凸部。

Description

蛇形热交换器
技术领域
本发明涉及一种蛇形热交换器。
背景技术
用作车辆用空调装置的蒸发器或冷凝器的热交换器公知有JP2001–27484A所公开的蛇形热交换器。
蛇形热交换器为如下结构：将在内部形成有介质的通路的管折返为蛇形（蜿蜒）状，在由折返的管夹着的空间内配置有翅片。
蛇形热交换器具有如下优点：通过改变管的长度、折弯位置和折弯次数，能够制造出各种大小、即各种容量的热交换器。
为了使蛇形热交换器实现小型化和高效率化，需要使管薄壁化而减小折弯部的曲率半径，减小不能配置翅片的折弯部内侧的空间，从而配置尽量多的翅片。
但是，用在蛇形热交换器中的管是通过挤压成型而成形得到的，所以很难实现薄壁化。
另外，如图6所示，形成于管的介质的通路是平行的多条通路。在这种流路结构的情况下，在某一通路中流动的介质不会与在其他通路中流动的介质混合，所以在通路之间会产生温度差，难以实现热交换器的高效率化。
发明内容
本发明是鉴于上述那样的技术问题而做成的，其目的在于使蛇形热交换器实现小型化和高效率化。
根据本发明的一技术方案，蛇形热交换器包括：管，通过将冲压成形得到的两片管片材贴合而构成该管，该管呈蛇形折返；翅片，其配置在由上述折返的管夹着的空间内，在上述管的折返部的内部，空开间隔地形成有自一个管片材突出且与另一个管片材抵接的多个凸部。
根据上述技术方案，通过将冲压成形得到的管片材叠合，且将该叠合后的管片材折返而构成蛇形的管。由于能使管的壁厚比通过挤压成型制成的管的壁厚薄，所以能够减小折弯部的曲率半径。由此，能使不能设置翅片的折弯部内侧的空间减小，能够配置更多的翅片，实现热交换器的小型化和高效率化。
另外，在管内流动的介质经过凸部之间的间隙而不停地混合、流动，所以由此也能实现热交换器的高效率化。
附图说明
图1是本发明的第1实施方式的蛇形热交换器的整体结构图。
图2A是在折返部沿短边方向剖切管而得到的图。
图2B是在直线部沿短边方向剖切管而得到的图。
图2C是沿长度方向剖切管的折返部和直线部而得到的图。
图3是管的剖视图。
图4A是说明制造方法的图。
图4B是说明制造方法的图。
图4C是说明制造方法的图。
图4D是说明制造方法的图。
图4E是说明制造方法的图。
图4F是说明制造方法的图。
图4G是说明制造方法的图。
图4H是说明制造方法的图。
图5是本发明的第2实施方式的管的剖视图。
图6是以往的管的剖视图。
具体实施方式
下面，参照附图说明本发明的实施方式。
第1实施方式
图1是本发明的第1实施方式的蛇形热交换器（以下称为“热交换器”。）100的整体结构图。
热交换器100包括管1、波纹翅片（corrugated fin）2、入口接头3、出口接头4、入口管5和出口管6。
将通过冲压成形而形成有凹槽7和向凹槽7内突出的截头圆锥状的多个凸部8（参照图2A～图2C和图3）的管片材11（参照图4A）叠合，并将叠合后的管片材11呈蛇形（蜿蜒）状折返，从而构成管1。在以下的说明中，将管1的被折返了的部分称为“折返部”，将管1的未折返的部分称为“直线部”。
图2A至图2C分别是在折返部沿短边方向剖切管1而得到的图，在直线部沿短边方向剖切管1而得到的图，沿长度方向剖切管1的折返部和直线部而得到的图。图3是管1的剖视图。
如上述这些图所示，一个管片材11的凸部8与另一个管片材11的凸部8对接，在管1的内部形成沿管1的厚度方向延伸的柱。沿管片材11的表面方向（介质的流动方向和与介质的流动方向正交的方向）空开间隔地形成凸部8，凸部8用于加强直线部，并且防止管1在折返部被压扁而使通路截面积减小。凸部8错列地配置而不会阻塞介质的通路。
在管1的折返部，管片材11的突片12沿管1的折返方向被折弯，将管片材11彼此凿紧加工。
波纹翅片2是通过将金属板折弯成波浪状而构成的翅片。波纹翅片2分别配置在由折返的管1形成的多个U字形的空间内，波纹翅片2的上端和下端与管1相接触。
入口接头3和入口管5与管1的一个端部相连接。出口接头4和出口管6与管1的另一个端部相连接。
第1实施方式的热交换器100构成为以上结构，自入口管5流入到入口接头3的介质在蜿蜒的管1内通过而自图中下侧流到上侧，在该过程内，该介质与流经波纹翅片2的空气进行热交换。热交换后的介质被送向出口接头4，自出口管6排出。
接下来，参照图4A～图4H说明第1实施方式的热交换器100的制造方法。
首先，通过冲压加工来制造管片材11（图4A）。管片材11在中央具有沿长度方向延伸的凹槽7，多个凸部8自凹槽7的底部沿管片材11的表面方向空开间隔地突出。凸部8的高度与凹槽7的深度相等。另外，在管片材11上，在成为折返部的部位的两侧形成有突片12。
接着，准备两片管片材11，以凹槽7位于内侧的方式将这两片管片材11叠合而构成为管1（图4B）。此时，以一个管片材11的凸部8的位置与另一个管片材11的凸部8的位置一致，一个管片材11的突片12的位置与另一个管片材11的突片12的位置一致的方式，对两片管片材11进行对位。通过将凹槽7叠合，在管1的内部形成介质的通路，另外通过使凸部8对接，在管1的内部形成沿厚度方向延伸的柱。
接着，将突片12折弯而对管片材11之间进行翻边咬合加工（图4C）。将突片12折弯的方向与将管1折返的方向相同。
接着，使管1在多处折返而形成为蛇形（图4D）。通过使夹具与管1的折返的部位抵接，并且对该部位的两侧施力，来将管1折返。在该部位，利用突片12对管片材11之间进行翻边咬合加工，所以即使在管1折返后，两片管片材11也维持紧密接触的状态，不会在管1的侧面产生间隙。
接着，使入口接头3与管1的一个端部相连接，使出口接头4与管1的另一个端部相连接（图4E）。入口接头3和出口接头4均为圆筒形状，入口接头3和出口接头4在端面具有与入口管5或出口管6相连接的开口，在侧面具有与管1的端部相连接的隙缝状开口。
接着，将波纹翅片2插入并配置在折返后的管1之间的空间内（图4F）。
接着，使入口管5与入口接头3相连接，使出口管6与出口接头4相连接（图4G）。
最后，将热交换器整体配置在炉中，利用钎焊将各零件结合起来（图4H）。
接下来，说明第1实施方式的作用效果。
采用第1实施方式，通过将冲压成形得到的管片材11叠合，且使叠合后的该管片材11在多处折返，构成蛇形的管1。由于能使管1的壁厚比通过挤压成型制成的管的壁厚薄，所以能够减小折弯部的曲率半径。由此，能使不能设置波纹翅片2的折弯部内侧的空间减小，能够配置更多的波纹翅片2，从而能够实现热交换器100的小型化和高效率化。
另外，当管1的壁厚较薄时，管1有可能在折弯部被压扁，但在第1实施方式中，由于利用自管片材11突出的凸部8在管1的内部形成有柱，所以也不会使管1在折弯部被压扁而减小通路截面积。
另外，在管1内流动的介质经过凸部8（柱）之间的间隙而不停地混合、流动，所以由此也能实现热交换器100的高效率化。
另外，由于在折返部利用突片12对管片材11彼此间进行了翻边咬合加工，所以在将管1折返时，管片材11与管片材11不会分离，能够防止在管1的侧面产生间隙。
另外，由于将形成于管片材11的凸部8的形状形成为截头圆锥状，所以能够确保直线部处的管1的强度，且能确保折弯部的折弯容易度。
第2实施方式
第2实施方式的形成在管1的内部的柱的形成方法与第1实施方式不同。
在第1实施方式中，在构成管1的两片管片材11均形成凸部8，通过使这些凸部8对接而形成了柱，但在第2实施方式中，只在一个管片材11形成有凸部8，未在另一个管片材11形成凸部8。在第2实施方式中，通过使形成于一个管片材11的凸部8与另一个管片材11的平坦面对接，在管1的内部形成柱。
图5是第2实施方式的管1的剖视图。只在一个管片材11形成有凸部8，未在另一个管片材11形成凸部8。利用这种结构也可以在管1的内部形成柱。采用该结构，不必将凸部8对位，能够简化制造工序。
本实施方式的其他结构与第1实施方式相同，所以省略说明。
以上，说明了本发明的实施方式，但上述实施方式表示本发明的应用例，并不旨在将本发明的技术范围限定于上述实施方式的具体结构。
例如在上述实施方式中，在整个管2上形成有凸部8，但凸部8只要至少设置于折弯部即可。在即使不设置凸部8也能确保直线部的强度的情况下，不必设置直线部的凸部8。
另外，凸部8的形状也可以不是截头圆锥状，而是圆柱状和棱柱状（三棱柱状和四棱柱状等）。
本申请要求基于2011年6月17日向日本专利局提交的日本特愿2011–135178的优先权，通过参照的方式将该申请的所有内容引入到本说明书中。

Claims (7)

1.一种蛇形热交换器，其特征在于，
该蛇形热交换器包括：
管，将冲压成形得到的两片管片材贴合而构成该管，该管呈蛇形状折返；
翅片，其配置在由上述折返的管夹着的空间内，
在上述管的折返部的内部，空开间隔地形成有自一个管片材突出且与另一个管片材抵接的多个凸部。
2.根据权利要求1所述的蛇形热交换器，其中，
在上述管的直线部的内部也形成有上述凸部。
3.根据权利要求1所述的蛇形热交换器，其中，
上述凸部与自上述另一个管片材突出的另一凸部对接。
4.根据权利要求1所述的蛇形热交换器，其中，
上述凸部只形成于上述一个管片材。
5.根据权利要求1所述的蛇形热交换器，其中，
上述凸部错列地配置。
6.根据权利要求1所述的蛇形热交换器，其中，
上述凸部为截头圆锥状、圆柱状或棱柱状。
7.根据权利要求1所述的蛇形热交换器，其中，
在上述管的上述折返部，在两侧对上述一个管片材和上述另一个管片材进行翻边咬合加工。
CN201280029492.6A 2011-06-17 2012-05-21 蛇形热交换器 Pending CN103608636A (zh)

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PCT/JP2012/062900 WO2012172928A1 (ja) 2011-06-17 2012-05-21 サーペンタイン熱交換器

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US20140116662A1 (en) 2014-05-01

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