EP1227291A2 - Echangeur de chaleur et procédé de fabrication - Google Patents

Echangeur de chaleur et procédé de fabrication Download PDF

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Publication number
EP1227291A2
EP1227291A2 EP01127879A EP01127879A EP1227291A2 EP 1227291 A2 EP1227291 A2 EP 1227291A2 EP 01127879 A EP01127879 A EP 01127879A EP 01127879 A EP01127879 A EP 01127879A EP 1227291 A2 EP1227291 A2 EP 1227291A2
Authority
EP
European Patent Office
Prior art keywords
flat tubes
flat
flat tube
collecting
heat exchanger
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.)
Granted
Application number
EP01127879A
Other languages
German (de)
English (en)
Other versions
EP1227291A3 (fr
EP1227291B1 (fr
Inventor
Bernhard Lamich
Viktor Brost
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.)
Modine Manufacturing Co
Original Assignee
Modine Manufacturing Co
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 Modine Manufacturing Co filed Critical Modine Manufacturing Co
Publication of EP1227291A2 publication Critical patent/EP1227291A2/fr
Publication of EP1227291A3 publication Critical patent/EP1227291A3/fr
Application granted granted Critical
Publication of EP1227291B1 publication Critical patent/EP1227291B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0221—Header boxes or end plates formed by stacked elements
    • 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 invention relates to a heat exchanger for motor vehicles with a finned flat tube block, consisting of flat tubes with fins arranged therebetween, shaped ends of the flat tubes opening into opposing collecting or deflecting boxes and with the long sides of the shaped ends with one another and with the narrow sides at the connecting edges the collecting or deflection boxes are connected by means of soldering; the ends of the flat tubes have at least one separating cut which divides the ends of the flat tubes into two parts; at least one of the separated parts of each flat tube has a bend transversely to the longitudinal direction, which leads to a connecting surface between the long side of the flat tube and the long side of the part of the adjacent flat tube; the collecting or deflection boxes with their connecting edges extend beyond the bend,
  • the invention further relates to a production method for the heat exchanger.
  • the heat exchanger and the method are the subject of the previously unpublished patent applications DE 100 19 268.8 and DE 100 60 006.9. If such a heat exchanger is used as a coolant cooler, the small diameter of the flat tubes is relatively small, often in the range of less than 2 mm, so that the two parts created by the separating cut, which serve for the soldered connection with the connecting edges of the collecting or deflection boxes , also form very small areas that lead to unsatisfactory solder connections. For example, from FIGS. 4 and 6 of DE 195 43 986 A1 it can be seen that the large diameter of the shaped ends of the flat tubes is reduced to such an extent that the collecting or deflecting boxes are significantly narrower than the finned flat tube block.
  • the object of the present invention is to eliminate or to mitigate the above disadvantages.
  • the ends of the flat tubes are stepped twice within their forming section, one step being able to be produced by means of an upsetting and widening process and the other step being made by the separating cut and the bending of at least one of the separated parts.
  • the manufacturing method in connection with the preamble of claim 5 according to the invention provides that the ends of the flat tubes are subjected to an upsetting and widening operation prior to the separation or in one operation with the separation, the small diameter of the flat tubes expanding and the large diameter of the flat tubes is reduced, and that the at least one separating cut is made within the forming section in the narrow sides of the ends of the flat tubes.
  • the finned flat tube block of the heat exchanger 1 consists of flat tubes 2 and corrugated fins 3 arranged between them.
  • the partial view in FIG. 1 only shows a collecting box 5 .
  • the other header box 5 is arranged identically at the opposite ends 4 of the flat tubes 2 .
  • All parts of this embodiment are made of aluminum and are plated with solder as required.
  • the collecting boxes 5 are of the simplest form, so that they can be produced very inexpensively using known processes in metal forming.
  • Each collecting box 5 has two connecting edges 7 with which it overlaps the narrow sides 11 of the flat tubes 2 at the ends 4 in the forming section 12 (FIG. 6).
  • FIGS. 6 In the exemplary embodiment from FIGS.
  • the ends 4 of the flat tubes 2 are stepped twice within their forming section 12 on both longitudinal sides 6 , one step 13 using a compression and expansion process and the other step 14 using a single separating cut 8 both narrow sides 11 of the flat tubes 2 and by the bend 9 of both parts 2a; 2b is made.
  • the width B of the collecting tanks 5 corresponds to the depth T of the cooling network, which can be seen from FIG. 3 and also from FIG. 5, which shows the cooling network without a collecting tank 5 . Therefore, the heat exchanger of this exemplary embodiment is a coolant-air cooler which has a relatively small depth T of the cooling network, which is approximately 25 mm. Furthermore, this has flat tubes 2, the small diameter d of which is less than 2 mm.
  • FIG. 2 shows a section through FIG.
  • FIG. 3 shows another section through FIG. 1, which runs just above the second gradation 14 or through the connecting surfaces 10 , which are formed by the longitudinal sides 6 of adjacent flat tube ends 4 lying against one another.
  • the gradation 14 arises as a result of the turn 9 of the parts 2a and 2b.
  • the degree of deformation of the compression and expansion process is significantly less than in known heat exchangers, ie the large diameter D of the flat tube 2 has been reduced significantly less and the small diameter d has been expanded significantly less.
  • the forming section 12 could also extend deeper into the flat tube 2 than is shown in FIGS. 6 and 7. This would result in even larger areas for the soldered connection between the narrow sides 11 and the connecting edges 7.
  • the result of the described method step (expansion process) is shown in FIG. 7.
  • the figure also shows the only separating cut 8 in the exemplary embodiments , which is made centrally in the narrow sides 11 of the flat tube 2 , specifically within the forming section 12 .
  • the separating cut is significantly shorter than the forming section 12.
  • the two parts 2a and 2b are bent and the step 14 is formed. 8
  • FIG. 10 shows a similar modification in which, in contrast to FIG. 8, the forming section 12 has been designed asymmetrically to the flat tube 2 .
  • FIG. 9 also shows an asymmetrical forming section 12, but both parts 2a and 2b have been bent there.
  • the dimensional design of the gradations 13, 14 and the depth of the forming section 12 can differ in the variants shown. Therefore, the designer has extensive options for designing the heat exchanger.
  • the gradations 13, 14 lead to a smooth transition for the coolant when entering the flat tubes 2. Therefore, they contribute to reducing the pressure loss.
  • the frame 15 has longitudinal and transverse sides 16, 17 and is pushed over the ends 4 of the flat tubes 2 and connected to all the other parts at the ends 4 in a soldering operation.
  • This development enables the use of plastic collecting boxes 5 .
  • the frame 15 has a U-shaped cross section, as shown in FIGS. 11 and 12, which serves to receive and mechanically fasten the edge of the collecting box 5 , not shown.
  • tabs 18 are bent, which can hold the collecting box 5 firmly and tightly in the frame 15 .

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)
EP01127879A 2001-01-26 2001-11-23 Echangeur de chaleur et procédé de fabrication Expired - Lifetime EP1227291B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10103570 2001-01-26
DE10103570A DE10103570A1 (de) 2001-01-26 2001-01-26 Wärmetauscher und Herstellungsverfahren

Publications (3)

Publication Number Publication Date
EP1227291A2 true EP1227291A2 (fr) 2002-07-31
EP1227291A3 EP1227291A3 (fr) 2004-05-12
EP1227291B1 EP1227291B1 (fr) 2006-06-21

Family

ID=7671869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01127879A Expired - Lifetime EP1227291B1 (fr) 2001-01-26 2001-11-23 Echangeur de chaleur et procédé de fabrication

Country Status (3)

Country Link
US (1) US6739386B2 (fr)
EP (1) EP1227291B1 (fr)
DE (2) DE10103570A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1873361B (zh) * 2005-05-17 2011-07-06 三电有限公司 用于换热器的管及其制造方法
EP2998685A3 (fr) * 2014-09-22 2016-03-30 MAHLE International GmbH Échangeur thermique

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147192A1 (de) * 2001-09-25 2003-04-17 Modine Mfg Co Wärmeaustauscher mit einem Rippen-Flachrohr-Block und Herstellungsverfahren
US20050161207A1 (en) * 2004-01-26 2005-07-28 Valeo, Inc. Heat exchanger manifold with formed corner joint
US7506683B2 (en) * 2004-05-21 2009-03-24 Valeo, Inc. Multi-type fins for multi-exchangers
US8925625B2 (en) * 2007-07-11 2015-01-06 Denso Corporation Heat exchanger
US20100199955A1 (en) * 2009-02-06 2010-08-12 Paccar Inc Charge air cooler
GB2509762B (en) 2013-01-14 2015-02-04 Halla Visteon Climate Control Tube for Heat Exchanger
JP6209078B2 (ja) * 2013-12-20 2017-10-04 株式会社ティラド ヘッダプレートレス型熱交換器
JP6567524B2 (ja) * 2014-07-30 2019-08-28 株式会社ティラド ヘッダープレートレス熱交換器の偏平チューブ
US9816767B2 (en) 2016-01-12 2017-11-14 Hamilton Sundstrand Corporation Tubes and manifolds for heat exchangers
DE112019000761T5 (de) * 2018-03-30 2020-11-12 T.Rad Co., Ltd. Headerplattenloser wärmetauscher
US11079181B2 (en) * 2018-05-03 2021-08-03 Raytheon Technologies Corporation Cast plate heat exchanger with tapered walls
KR102674359B1 (ko) * 2022-10-20 2024-06-12 (주)신한아펙스 판형 열교환기 및 그 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543986A1 (de) 1995-11-25 1997-05-28 Behr Gmbh & Co Wärmetauscher und ein Verfahren zur Herstellung eines Wärmetauschers
DE10019268A1 (de) 2000-03-31 2001-12-13 Modine Mfg Co Kühler für Kraftfahrzeuge
DE10060006A1 (de) 2000-12-02 2002-06-13 Modine Mfg Co Wärmetauscher

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE584678C (de) * 1932-03-22 1933-09-22 Buckau R Wolf Akt Ges Maschf Dampfbeheizter Roehrentrockner Schulzscher Bauart
CH378353A (de) * 1960-09-01 1964-06-15 Urech Karl Wärmeaustauscher mit plattenförmigen Austauschelementen
DE2061682A1 (en) * 1969-12-17 1971-07-15 Murex Ltd Heat exchange pipework assembly with at - least three pipes
US4206806A (en) * 1976-03-15 1980-06-10 Akira Togashi Heat-conducting oval pipes in heat exchangers
JPS5860196A (ja) * 1981-09-30 1983-04-09 Toshiba Corp 熱交換器
US4458749A (en) * 1983-04-18 1984-07-10 Ex-Cell-O Corporation Radiator having reinforced tubes
FR2570814B1 (fr) * 1984-09-25 1986-12-19 Valeo Echangeur de chaleur a faisceau de tubes, en particulier pour vehicule automobile
JPS6447287A (en) * 1987-08-13 1989-02-21 Fuji Electric Co Ltd Star-delta starting method for induction motor
FR2705143B1 (fr) * 1993-05-11 1995-06-23 Valeo Thermique Moteur Sa Echangeur de chaleur notamment pour vehicule automobile.
JP3125834B2 (ja) * 1993-09-01 2001-01-22 株式会社デンソー 熱交換器およびその製造方法
FR2715216B1 (fr) * 1994-01-20 1996-02-16 Valeo Thermique Moteur Sa Tube d'échangeur de chaleur, procédé pour sa conformation et échangeur de chaleur comprenant de tels tubes.
DE4445590C2 (de) * 1994-12-20 2001-02-01 Behr Gmbh & Co Verfahren zum Aufweiten der Rohrenden von Rohren eines Wärmetauschers, Werkzeug zur Durchführung des Verfahrens sowie nach dem Verfahren und mit dem Werkzeug hergestellter Wärmetauscher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543986A1 (de) 1995-11-25 1997-05-28 Behr Gmbh & Co Wärmetauscher und ein Verfahren zur Herstellung eines Wärmetauschers
DE10019268A1 (de) 2000-03-31 2001-12-13 Modine Mfg Co Kühler für Kraftfahrzeuge
DE10060006A1 (de) 2000-12-02 2002-06-13 Modine Mfg Co Wärmetauscher

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1873361B (zh) * 2005-05-17 2011-07-06 三电有限公司 用于换热器的管及其制造方法
EP2998685A3 (fr) * 2014-09-22 2016-03-30 MAHLE International GmbH Échangeur thermique
US10837708B2 (en) 2014-09-22 2020-11-17 Mahle International Gmbh Plate type heat exchanger for exhaust gas

Also Published As

Publication number Publication date
EP1227291A3 (fr) 2004-05-12
DE50110241D1 (de) 2006-08-03
EP1227291B1 (fr) 2006-06-21
US20020108742A1 (en) 2002-08-15
DE10103570A1 (de) 2002-08-01
US6739386B2 (en) 2004-05-25

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