EP1420222A1 - Wärmetauscher - Google Patents

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Publication number
EP1420222A1
EP1420222A1 EP02749323A EP02749323A EP1420222A1 EP 1420222 A1 EP1420222 A1 EP 1420222A1 EP 02749323 A EP02749323 A EP 02749323A EP 02749323 A EP02749323 A EP 02749323A EP 1420222 A1 EP1420222 A1 EP 1420222A1
Authority
EP
European Patent Office
Prior art keywords
side plate
header
tube
heat exchanger
fitting
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Withdrawn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
EP02749323A
Other languages
English (en)
French (fr)
Other versions
EP1420222A4 (de
Inventor
Hideaki; c/o Showa Denko K. K. MANAKA
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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 Showa Denko KK filed Critical Showa Denko KK
Publication of EP1420222A1 publication Critical patent/EP1420222A1/de
Publication of EP1420222A4 publication Critical patent/EP1420222A4/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Withdrawn legal-status Critical Current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
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core

Definitions

  • the present invention relates to a metal heat exchanger such as the so-called multi-flow type aluminum heat exchanger suitably used for a car air-conditioning condenser and the like.
  • a heat exchanger shown in Figs. 9 and 10 is generally known.
  • the heat exchanger includes a pair of hollow headers 101 and 101 arranged in parallel, a plurality of flat tubes 102 disposed in parallel between the headers 101 and 101 and connected thereto and corrugated fins 103 each disposed between the adjacent tubes 102.
  • each tube 102 is connected to the headers 101 such that both end portions of the tube 102 are brazed to the headers 101 in a state that the end potions are inserted into the circumferentially extending slit-shaped tube fitting aperture 104 formed in the opposed surfaces of the headers 101.
  • a corrugated fin 103 is disposed at the outside surface of the outermost tube 102 in order to improve the heat exchange efficiency
  • a side plate 105 is disposed at the outside surface of the corrugated fin 103 for the purpose of protecting the fin 103 and the like.
  • an outwardly protruded fitting portion 106 having a small width is formed respectively.
  • This side plate 105 is integrally brazed to the headers 101 in a state that the fitting portion 106 is fitted in the side plate fitting aperture 107 having a narrow width formed in the opposed surfaces of the headers 101 and 101.
  • the reference numeral 110 denotes a partitioning plate
  • 111 denotes an inlet pipe
  • 112 denotes an outlet pipe.
  • the heat exchanger having the aforementioned conventional structure, it is required to provide the protruded fitting portions 106 at both ends of the side plate 105.
  • each header 101 it is required to form two different types of apertures in the external surface of each header 101, i.e., side plate fitting apertures 107 for receiving the protruded fitting portion 106 and the tube fitting apertures 104 for receiving the tube 102.
  • side plate fitting apertures 107 for receiving the protruded fitting portion 106
  • tube fitting apertures 104 for receiving the tube 102.
  • the present invention is made in view of the aforementioned technical background and aims to provide a heat exchanger which is excellent in productivity and capable of decreasing the manufacturing cost by eliminating the necessity of forming a special fitting configuration at end portions of a side plate and enhancing the workability for forming side plate fitting apertures and tube fitting apertures.
  • a heat exchanger including a hollow header having a plurality of tube fitting apertures arranged in line, a plurality of tubes communicated with the header, each tube having one end fitted in a corresponding tube fitting aperture, a fin disposed at an outside of an outermost tube, and a side plate disposed at an outside of the fin, wherein the header is further provided with a side plate fitting aperture having the same or approximately the same configuration as that of the tube fitting aperture, wherein a header insertion end portion of the side plate is formed into a cross-sectional peripheral configuration corresponding to a cross-sectional peripheral configuration of the side plate fitting aperture, and wherein the header insertion end portion of the side plate is fitted in the side plate fitting aperture and secured thereto.
  • a heat exchanger includes a pair of hollow headers arranged in parallel, a plurality of tubes disposed in parallel between the headers and communicated with the headers with opposite end portions fitted in tube fitting apertures formed in opposed surfaces of the pair of headers, fins disposed between adjacent tubes and at an outside of an outermost tube, and a side plate disposed at an outside of an outermost fin with opposite end portions fitted in side plate fitting apertures formed in opposed surfaces of the pair of headers, wherein a header insertion end portion constituting one of both end portions of the side plate is formed into the same or approximately the same cross-sectional peripheral configuration as that of an end portion of the tube, and wherein the side plate fitting aperture is formed into the same or approximately the same configuration as that of the tube fitting aperture.
  • the aperture forming operations can be completed by forming a plurality of the same or approximately the same apertures in the header, and therefore it is not required to form a conventional side plate fitting apertures different from the tube fitting apertures.
  • This enhances the workability of forming fitting apertures in the header, which in turn reduces the manufacturing cost.
  • the end portion of the side plate is formed into the same or approximately the same cross-sectional peripheral configuration as that of an end portion of the tube, it is not required to perform specific end portion processing to an end portion of the side plate for forming a protruded fitting portion which is technically difficult. Accordingly, the quality of product can be improved and the cost can be decreased because of the enhanced workability.
  • a corrugated fin constituted by an aluminum brazing sheet comprising a core member and brazing materials coated on one side or both sides of the core member.
  • the side plate is provided with a header inserting portion having a contacting piece vertically extending relative to the side plate, and wherein the side plate is secured to the header with a header fitting surface of the contacting piece fitted to an external surface of the header.
  • the joining area increases when the header fitting surface of the contacting piece is secured to the external surface of the header, the joining strength increases notably.
  • the existence of the contacting piece effectively prevents the contraction in the right-and-left direction (the longitudinal direction of the side plate) at the time of joining such as brazing.
  • the contacting piece is extended toward an inside of the side plate. In this case, it becomes unnecessary to newly provide a contacting piece fitting space at the tip end position of the external surface of the header (at the position located outside the side plate), resulting in a shortened header length, which in turn can meet the demand of compactness of a heat exchanger.
  • the contacting piece is formed by bending a cut-part of a widthwise edge portion of the header inserting end portion. In this case, there is a merit that the productivity can be improved regardless of the existence of the contacting piece.
  • the header inserting end portion of the side plate is formed into a tapered shape having a width decreasing toward a tip thereof.
  • the header inserting end portion of the side plate may have a first tapered portion as an insertion guide at a tip end thereof and a second tapered portion for an insertion amount restricting portion at an inside position of the header inserting end portion.
  • a first tapered portion as an insertion guide at a tip end thereof
  • a second tapered portion for an insertion amount restricting portion at an inside position of the header inserting end portion.
  • the side plate may have a width which is the same or approximately the same as a width of the tube and a thickness which is the same or approximately the same as a height of the tube.
  • the aforementioned heat exchanger can be preferably used for a condenser in a refrigeration cycle in which a refrigerant compressed by a compressor is condensed by a condenser, the condensed refrigerant is decompressed by passing through a decompressing device, and the decompressed refrigerant is evaporated by an evaporator and then returned to the compressor.
  • FIG. 1 A heat exchanger according to an embodiment of the present invention is shown in Figs. 1 to 6.
  • This heat exchanger is used as a condenser for car air-conditioners, and the reference numeral 1 denotes a hollow header, 3 denotes a tube, 4 denotes a corrugated fin, 5 denotes a side plate, 6 denotes a tube fitting aperture and 7 denotes a side plate fitting aperture.
  • Each of the pair of hollow headers 1 and 1 disposed in parallel is manufactured by forming an aluminum brazing sheet including a core member and brazing layers coated on both sides of the core member into a cylindrical shape with opposite side end portions abutted against each other and brazing the side end portions.
  • the header is a hollow tube having a round cross-section.
  • the header may be the so-called electric resistance welded pipe formed by joining the side edge portions by electric resistance welding, or may be a cylindrical aluminum extruded formed member with no side edge portions abutted against each other.
  • a partitioning plate 15 is disposed in the header 1, whereby the inner space of the header 1 is divided into a plurality of chambers arranged in the longitudinal direction of the header.
  • tube fitting apertures 6 are provided at certain intervals along the longitudinal direction of the header. Both ends of the tube 3 disposed in parallel between the headers 1 are inserted into the tube fitting apertures 6 and brazed thereto, whereby the tube 3 and the header 1 are communicated with each other.
  • the tube 3 is constituted by a multi-bored flat aluminum extruded member.
  • the tube 3 may be the so-called electric resistance welded pipe.
  • the side plate 5 is disposed at the outside of the outermost side corrugated fin 4.
  • Each end portion 5a of this side plate 5 is inserted into a circumferentially extending slit-shaped side plate fitting aperture 7 formed at both end portions of the opposed surfaces of the headers 1 and 1, and brazed thereto.
  • the cross-sectional peripheral configuration of the end portion 5a of the side plate 5 is formed into a cross-sectional peripheral configuration identical to that of the end portion of the tube 3.
  • the end portion 5a of the side plate 5 may be formed to have a cross-sectional peripheral configuration which is approximately the same cross-sectional peripheral configuration of the end portion of the tube 3.
  • the end portion 5a of the side plate 5 and the end portion of the tube 3 may be formed into a cross-sectional peripheral configuration as shown in Fig. 7.
  • the width of the side plate 5 may be the same or approximately the same width of the tube 3
  • the thickness of the side plate 5 may be the same or approximately the same height of the tube 3.
  • contacting pieces 10 extended inwardly and vertically relative to the side plate 5 are provided (see Figs. 1 and 6). As shown in Fig. 5, since these contacting pieces 10 are brazed to the header 1 with the fitting surfaces 10a of the contacting pieces fitted to the external surfaces of the header 1, the joining area of the header 1 and the side plate 5 increases, resulting in remarkably increased joining strength thererbetween. Accordingly, a heat exchanger excellent in durability can be provided. Furthermore, since such contacting pieces 10 are protruded, the generation of contraction in the right-and-left direction of the heat exchanger (in the longitudinal direction of the side plate) at the time of brazing, etc., can be effectively prevented.
  • the productivity is excellent in spite of employing additional protruded members.
  • the end portion 5a of the side plate 5 is formed into a tapered shape having a width which decreases toward the tip end. Accordingly, the insertion of the end portion into the side plate fitting aperture 7 can be performed smoothly, and a proper positioning to the header can be attained.
  • two stepped tapered configuration may be employed. That is, it may be constituted that the tip end portion 5a of the side plate 5 is formed into a tapered shape constituting a first tapered portion 20 and an inner portion of the tip end portion 5a is formed into a tapered shape constituting a second tapered portion 21.
  • the inclination angle of the second tapered portion 21 is set to 10° relative to the axial direction of the side plate 5 (inclined by 10° relative to the axial direction).
  • the heat exchanger according to the present invention is manufactured by provisionally assembling each component 1, 3, 4 and 5, and integrally secured by furnace brazing, etc.
  • the aperture forming operations can be performed by forming a plurality of the same or approximately the same apertures in the header 1, and therefore it becomes unnecessary to form conventional side plate fitting apertures different from the tube fitting apertures. This enhances the workability of forming fitting apertures in the header 1, which in turn reduces the manufacturing cost.
  • the end portion of the side plate 5 is formed into the same or approximately the same cross-sectional peripheral configuration as that of an end portion of the tube 3, it is not required to perform specific end portion processing to an end portion of the side plate 5 for forming a protruded fitting portion which is technically difficult. Accordingly, the quality of product can be improved and the cost can be reduced because of an enhanced workability.
  • the side plate is provided with a header inserting portion having a contacting piece vertically extending relative to the side plate and the side plate is secured to the header with a header fitting surface of the contacting piece fitted to an external surface of the header
  • the joining strength increases notably.
  • the existence of the contacting piece effectively prevents the contraction in the right-and-left direction (the longitudinal direction of the side plate) at the time of joining such as brazing.
  • the header inserting end portion of the side plate is formed into a tapered shape having a width decreasing toward a tip thereof, the insertion of the end portion of the side plate into the side plate fitting aperture can be performed smoothly, and the side plate can be secured to the headers in a positioned state.
  • the header inserting end portion of the side plate has a first tapered portion as an insertion guide at a tip end thereof and a second tapered portion for an insertion amount restricting portion at an inside position of the header inserting end portion, it becomes easy to insert the side plate into the header and the assembly work can be done easily because of the regulated header insertion amount.
  • the present invention is preferably used for a metal heat exchanger such as the so-called multi-flow type aluminum heat exchanger used for a car air-conditioning condenser and the like.

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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Air-Conditioning For Vehicles (AREA)
EP02749323A 2001-07-19 2002-07-19 Wärmetauscher Withdrawn EP1420222A4 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2001219851 2001-07-19
JP2001219851 2001-07-19
US30884801P 2001-08-01 2001-08-01
US308848P 2001-08-01
PCT/JP2002/007351 WO2003008891A1 (fr) 2001-07-19 2002-07-19 Echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP1420222A1 true EP1420222A1 (de) 2004-05-19
EP1420222A4 EP1420222A4 (de) 2009-08-05

Family

ID=26619015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02749323A Withdrawn EP1420222A4 (de) 2001-07-19 2002-07-19 Wärmetauscher

Country Status (5)

Country Link
EP (1) EP1420222A4 (de)
JP (1) JP4272055B2 (de)
CN (1) CN1531641A (de)
AU (1) AU2002320794B2 (de)
WO (1) WO2003008891A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10401097B2 (en) * 2014-04-04 2019-09-03 Mahle International Gmbh Heat exchanger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4334311B2 (ja) * 2003-09-30 2009-09-30 株式会社ヴァレオサーマルシステムズ 熱交換器
CA2596333A1 (en) * 2005-02-02 2006-08-10 Carrier Corporation Heat exchanger with fluid expansion in header
JP2013002772A (ja) * 2011-06-20 2013-01-07 Japan Climate Systems Corp 熱交換器
CN106714509B (zh) * 2015-11-17 2019-06-07 奇鋐科技股份有限公司 散热装置
CN110998201B (zh) * 2017-08-03 2022-02-11 三菱电机株式会社 热交换器和制冷循环装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387063U (de) * 1989-12-08 1991-09-04
JPH04340093A (ja) * 1991-05-16 1992-11-26 Nippondenso Co Ltd 積層型熱交換器
US5265672A (en) * 1991-03-08 1993-11-30 Sanden Corporation Heat exchanger
US5732767A (en) * 1996-01-24 1998-03-31 Modine Manufacturing Co. Corrosion resistant heat exchanger and method of making the same
EP0882940A2 (de) * 1997-06-02 1998-12-09 Mitsubishi Heavy Industries, Ltd. Wärmetauscher
GB2356923A (en) * 1999-11-30 2001-06-06 Delphi Tech Inc Heat exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0722620Y2 (ja) * 1987-09-29 1995-05-24 昭和アルミニウム株式会社 空気調和機用アルミニウム製凝縮器
JPH01183373A (ja) * 1988-01-13 1989-07-21 Nitto Denko Corp 研磨用ベルト
JPH0717959Y2 (ja) * 1989-03-27 1995-04-26 東洋ラジエーター株式会社 アルミニウム製熱交換器
JP3156565B2 (ja) * 1995-10-31 2001-04-16 株式会社デンソー 熱交換器
JPH1183373A (ja) * 1997-09-01 1999-03-26 Zexel Corp 熱交換器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387063U (de) * 1989-12-08 1991-09-04
US5265672A (en) * 1991-03-08 1993-11-30 Sanden Corporation Heat exchanger
JPH04340093A (ja) * 1991-05-16 1992-11-26 Nippondenso Co Ltd 積層型熱交換器
US5732767A (en) * 1996-01-24 1998-03-31 Modine Manufacturing Co. Corrosion resistant heat exchanger and method of making the same
EP0882940A2 (de) * 1997-06-02 1998-12-09 Mitsubishi Heavy Industries, Ltd. Wärmetauscher
GB2356923A (en) * 1999-11-30 2001-06-06 Delphi Tech Inc Heat exchanger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO03008891A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10401097B2 (en) * 2014-04-04 2019-09-03 Mahle International Gmbh Heat exchanger

Also Published As

Publication number Publication date
EP1420222A4 (de) 2009-08-05
CN1531641A (zh) 2004-09-22
JPWO2003008891A1 (ja) 2004-11-11
WO2003008891A1 (fr) 2003-01-30
JP4272055B2 (ja) 2009-06-03
AU2002320794B2 (en) 2007-08-30

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