EP1811254A2 - Flachrohr-Mikrokanälen-Wärmetauscher mit gebogener Röhrenkonfiguration - Google Patents

Flachrohr-Mikrokanälen-Wärmetauscher mit gebogener Röhrenkonfiguration Download PDF

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Publication number
EP1811254A2
EP1811254A2 EP07075026A EP07075026A EP1811254A2 EP 1811254 A2 EP1811254 A2 EP 1811254A2 EP 07075026 A EP07075026 A EP 07075026A EP 07075026 A EP07075026 A EP 07075026A EP 1811254 A2 EP1811254 A2 EP 1811254A2
Authority
EP
European Patent Office
Prior art keywords
tube members
passages
range
assembly
header
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07075026A
Other languages
English (en)
French (fr)
Inventor
Donald Robert Pautler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1811254A2 publication Critical patent/EP1811254A2/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F28D1/053—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 straight
    • F28D1/0535—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 straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0273—Cores having special shape, e.g. curved, annular
    • 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
    • Y10T29/49373—Tube joint and tube plate structure

Definitions

  • the subject invention relates to a heat exchanger assembly for use in residential air conditioning units.
  • headers will be so amendable to bending, and it may be desired to leave the headers vertical, straight, and unbent, which would necessitate either bending the flat tubes, or finding alternate ways to interconnect the various flat face portions of the core together.
  • the invention provides a heat exchanger assembly for use in residential air conditioning units.
  • the assembly includes a first header and a second header spaced parallel from each other.
  • a plurality of tube members extend between the first header and the second header.
  • the tube members have a width (w) that is measured from a first nose of the tube member to a second nose of the tube member.
  • the tube members define a plurality of fluid passages for the flow of a liquid through the tube members and between the first and second headers.
  • the tube members have an ultimate strength (Us) and extend through at least one bend having a bend radius (r).
  • a plurality of air fins are disposed between adjacent tube members for dissipating heat from the tube members.
  • the invention is distinguished by the bends of the tube members satisfying a bending formula (w/r)Us ⁇ 30 mega Pascal.
  • the subject invention also provides a method of manufacturing a heat exchanger assembly having a plurality of bent tube members for use in residential air conditioning units.
  • the method includes preparing a straight condenser having a plurality of headers spaced parallel from each other and a plurality of tube members defining a plurality of flow passages extending between the headers and a plurality of air fins extending between the tube members.
  • the method further includes brazing the joints between the headers and the tube members and between the tube members and the air fins.
  • the method is distinguished by bending the straight condenser to at least one predetermined bend satisfying a bending formula (w/r)Us ⁇ 30 mega Pascal, wherein w equals a width extending between semi-circular noses, r equals a bend radius, and Us equals the ultimate strength of the tube members.
  • the invention produces sharp bends of relatively wide and thin, flat microchannel extruded tube members with brazed, corrugated air fins.
  • a heat exchanger assembly 20 is generally shown for use in residential air conditioning units in Figures 1-3.
  • the assembly 20 comprises a first header 22 and a second header 24 spaced parallel from each other.
  • the first header 22 includes an inlet 26 and the second header 24 includes an outlet 28 for the flow of a liquid through the assembly 20.
  • the headers 22, 24 are illustrated as trapezoidal in cross-section, many different configurations may be used, including round and rectangular.
  • a plurality of tube members 30 generally indicated extend between the first header 22 and the second header 24.
  • the tube members 30 have two parallel flat sides 32 that extend between semi-circular first and second noses 34, 36.
  • the first nose 34 and the second nose 36 are spaced a width w from each other.
  • the width w of the tube members 30 is in the range of 12.00 mm to 27.00 mm.
  • the tube members 30 define a plurality of fluid passages 38 for the flow of a liquid through the tube members 30 and between the first and second headers 22, 24.
  • the refrigerant may make multiple passes between the headers 22, 24 by placing appropriate dividers or baffles in the headers 22, 24.
  • the passages 38 are generally round in cross section, but may be any shape known in the art.
  • the passages 38 have a diameter d in the range of .50 mm to 1.00 mm.
  • the liquid will enter the assembly 20 through the inlet 26 of the first header 22, move through the passages 38 of the tube members 30 to the second header 24, and out of the assembly 20 through the outlet 28 of the second header 24.
  • the tube members 30 extend through at least one bend having a bend radius r in the range of 50.00 mm to straight ( ⁇ ) through angles between 0 and 100 degrees.
  • the tube members 30 have an ultimate strength Us and are typically made of aluminum or aluminum alloys, but may be of any material known in the art, such as copper or copper alloys.
  • the ultimate strength Us of the material being used can be found in several publications that list various properties of materials.
  • One such publication is "Property of Aluminum Alloys: Tensile, Creep, and Fatigue Data at High and Low Temperatures" published by The Aluminum Association and ASM International.
  • the tube members 30 have an internal wall thickness t i between each of the passages 38 and the next adjacent one of the passages 38 in the range of .15 mm to .40 mm.
  • the tube members 30 have an external wall thickness t e between each of the passages 38 and the flat sides 32 of the tube members 30 in the range of .15 mm to .40 mm.
  • the tube members 30 have a nose thickness t n between each of the first and second noses 34, 36 and the adjacent one of the passages 38 in the range of .15 mm to 1.00 mm.
  • a plurality of air fins 40 are brazed between two of the parallel flat sides 32 of adjacent tube members 30 for dissipating heat from the tube members 30.
  • the air fins 40 are corrugated.
  • the subject invention is distinguished by the bends of the tube members 30 satisfying a bending formula (w/r)Us ⁇ 30 mega Pascal.
  • the ratio of the width w of the tube members 30 to the bend radius r multiplied by the ultimate strength Us of the material used must be less than 30 mega Pascal for a successful sharp bend.
  • the subject invention also provides for a method of manufacturing a heat exchanger assembly 20 having a plurality of bent tube members 30 for use in residential air conditioning units.
  • the method begins with the step of preparing a straight condenser.
  • the condenser includes a plurality of headers 22, 24 spaced parallel from each other, a plurality of tube members 30 defining a plurality of flow passages 38 extending between the headers 22, 24, and a plurality of air fins 40 extending between the tube members 30.
  • the method proceeds with the step of brazing the joints between the headers 22, 24 and the tube members 30 and between the tube members 30 and the air fins 40.
  • the method is distinguished by bending the straight condenser to at least one predetermined bend satisfying a bending formula (w/r)Us ⁇ 30 mega Pascal, wherein w equals a width w extending between semi-circular noses 34, 36,r equals a bend radius r , and Us equals the ultimate strength Us of the tube members 30 material.
  • the method is more specific by establishing a range for the bend radius r of 50.00 mm to straight ( ⁇ ) through angles between 0 and 100 degrees and a range for the width w of 12.00 mm and 27.00 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP07075026A 2006-01-24 2007-01-11 Flachrohr-Mikrokanälen-Wärmetauscher mit gebogener Röhrenkonfiguration Withdrawn EP1811254A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76146706P 2006-01-24 2006-01-24
US11/441,559 US20070169922A1 (en) 2006-01-24 2006-05-26 Microchannel, flat tube heat exchanger with bent tube configuration

Publications (1)

Publication Number Publication Date
EP1811254A2 true EP1811254A2 (de) 2007-07-25

Family

ID=37969835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07075026A Withdrawn EP1811254A2 (de) 2006-01-24 2007-01-11 Flachrohr-Mikrokanälen-Wärmetauscher mit gebogener Röhrenkonfiguration

Country Status (2)

Country Link
US (1) US20070169922A1 (de)
EP (1) EP1811254A2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010106158A2 (de) 2009-03-20 2010-09-23 Komitec Automation Gmbh Mehrkanalflachrohrwärmeübertrager, insbesondere für haushaltskühlgeräte
EP2310770A4 (de) * 2008-07-09 2013-12-18 Carrier Corp Wärmepumpe mit mikrokanalwärmetauschern als aussen- wie auch nachheizwärmetauscher

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US8327924B2 (en) 2008-07-03 2012-12-11 Honeywell International Inc. Heat exchanger fin containing notches
US9415436B2 (en) 2008-08-08 2016-08-16 Mahle International Gmbh Method and apparatus for bending a micro-channel heat exchanger
JP2011185562A (ja) * 2010-03-10 2011-09-22 Showa Denko Kk コンデンサ
EP2375208B1 (de) * 2010-03-31 2012-12-05 VALEO AUTOSYSTEMY Sp. Z. o.o. Verbesserter Wärmetauscher
CN101846465B (zh) * 2010-04-13 2011-11-09 三花丹佛斯（杭州）微通道换热器有限公司 换热器
JP5009413B2 (ja) * 2010-12-22 2012-08-22 シャープ株式会社 熱交換器及びそれを搭載した空気調和機
US20120227944A1 (en) * 2011-03-10 2012-09-13 Theodor Moisidis Bent tube heat exchanger assembly
US20130075069A1 (en) * 2011-09-26 2013-03-28 Trane International Inc. Brazed microchannel heat exchanger with thermal expansion compensation
CN103759553B (zh) * 2014-02-17 2016-05-11 丹佛斯微通道换热器（嘉兴）有限公司 换热装置和热源单元
JP6340583B2 (ja) * 2014-03-14 2018-06-13 パナソニックＩｐマネジメント株式会社 熱交換器
US11585609B2 (en) * 2014-05-06 2023-02-21 Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. Bent heat exchanger
US20160003255A1 (en) * 2014-07-03 2016-01-07 General Electric Company Fluid processing system, an energy-dissipating device, and an associated method thereof
EP3194872B1 (de) * 2014-09-05 2019-10-30 Carrier Corporation Extrudierter multiport-wärmetauscher
US20180299205A1 (en) * 2015-10-12 2018-10-18 Charbel Rahhal Heat exchanger for residential hvac applications
CN105651081B (zh) 2015-12-30 2018-07-13 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
WO2023195112A1 (ja) * 2022-04-07 2023-10-12 三菱電機株式会社 熱交換器、熱交換器を搭載した空気調和機、および熱交換器の製造方法
CN117109336A (zh) * 2023-07-28 2023-11-24 青岛海尔中央空调有限公司 翅片换热器及空气源热泵机组

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FR2489495A1 (fr) * 1980-09-01 1982-03-05 Chausson Usines Sa Procede pour la fabrication d'echangeurs de chaleur a elements cintres et echangeur obtenu selon ce procede
US4998580A (en) * 1985-10-02 1991-03-12 Modine Manufacturing Company Condenser with small hydraulic diameter flow path
US5762132A (en) * 1996-04-03 1998-06-09 Ford Global Technologies, Inc. Heat exchanger and method of assembly for automotive vehicles
US5826649A (en) * 1997-01-24 1998-10-27 Modine Manufacturing Co. Evaporator, condenser for a heat pump
ES2196294T3 (es) * 1997-12-30 2003-12-16 Carrier Corp Intercambiador de calor de multiples filas.
JP4026277B2 (ja) * 1999-05-25 2007-12-26 株式会社デンソー 熱交換器
JP2001165532A (ja) * 1999-12-09 2001-06-22 Denso Corp 冷媒凝縮器
DE10054158A1 (de) * 2000-11-02 2002-05-08 Behr Gmbh Mehrkammerrohr mit kreisförmigen Strömungskanälen
US6880620B2 (en) * 2002-06-25 2005-04-19 Delphi Technologies, Inc. Heating, ventilating, and air conditioning module having an improved heater core configuration
US20050281529A1 (en) * 2004-06-22 2005-12-22 Carpenter James B Fiber splicing and gripping device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2310770A4 (de) * 2008-07-09 2013-12-18 Carrier Corp Wärmepumpe mit mikrokanalwärmetauschern als aussen- wie auch nachheizwärmetauscher
WO2010106158A2 (de) 2009-03-20 2010-09-23 Komitec Automation Gmbh Mehrkanalflachrohrwärmeübertrager, insbesondere für haushaltskühlgeräte
DE102009001720A1 (de) 2009-03-20 2010-09-23 Komitec Automation Gmbh Mehrkanalflachrohrwärmeübertrager, insbesondere für Haushaltskühlgeräte
DE102009001720B4 (de) * 2009-03-20 2011-04-21 Komitec Automation Gmbh Mehrkanalflachrohrwärmeübertrager, insbesondere für Haushaltskühlgeräte

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Publication number Publication date
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