EP1515108B1 - Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers - Google Patents

Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers Download PDF

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Publication number
EP1515108B1
EP1515108B1 EP20040460017 EP04460017A EP1515108B1 EP 1515108 B1 EP1515108 B1 EP 1515108B1 EP 20040460017 EP20040460017 EP 20040460017 EP 04460017 A EP04460017 A EP 04460017A EP 1515108 B1 EP1515108 B1 EP 1515108B1
Authority
EP
European Patent Office
Prior art keywords
profiled tube
projections
heat exchanger
openings
header tank
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.)
Expired - Lifetime
Application number
EP20040460017
Other languages
English (en)
French (fr)
Other versions
EP1515108A3 (de
EP1515108A2 (de
Inventor
Pawel Borowczyk
Robert Racz
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
Priority claimed from GBGB0321092.9A external-priority patent/GB0321092D0/en
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP20040460017 priority Critical patent/EP1515108B1/de
Publication of EP1515108A2 publication Critical patent/EP1515108A2/de
Publication of EP1515108A3 publication Critical patent/EP1515108A3/de
Application granted granted Critical
Publication of EP1515108B1 publication Critical patent/EP1515108B1/de
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on 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
    • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove

Definitions

  • the invention relates to a method of manufacturing a brazed profiled tube, in particular a header tank of a heat exchanger comprising a cooling core consisting of a plurality of parallel tubes and cooling fins and two radiator tanks fluidly connected with opposite ends of each tube.
  • header tank profile During typical process of forming the header tank profile, an aluminium sheet plate covered with a cladding layer is bended and subsequently closed by direct contact of two of its edges or by an overlap.
  • header tanks are disclosed for example in U.S. Pat. No. 5,867,899 .
  • Such a solution however may not ensure a durable connection for a brazing process and consequently may lead to the leakage of the profile.
  • the heat exchanger can be preliminary assembled in such a manner that, with no risk of disconnecting of its elements prior to brazing it is possible to transport the preassembled module and to braze thereof with no need of any additional elements such as brackets in a one-shot brazing operation.
  • a header tank enabling such an operation is presented in U.K. Pat. No. 2,371,505 , where a method of making a header tank from an initially flat, elongate sheet of material is disclosed.
  • the method comprises the steps of folding the sheet so that its longitudinal edges are in contact with one another, forming a clinched seam between the edges to make a tubular body, and closing the ends of the tubular body.
  • This method however is relatively complicated and the clinched seam is placed on an external surface of the profile, which may increase the unused storage space during external packaging of the heat exchanger.
  • the aim of the present invention is to provide a reliable and simple method of manufacturing a brazed profiled tube, in particular the header tank of the heat exchanger, which protects the elements of future brazed seam against displacement in relation to each other, thus allowing an easy preliminary preassembling.
  • a method of manufacturing a brazed profiled tube comprising the steps of:
  • openings and projections are equidistantly spaced along the longitudinal axis of the profiled tube.
  • the disclosed embodiment concerns a header tank of a vehicle heat exchanger. It is to be understood however, that other applications of the method according to the present invention, for manufacturing other tubular elements are also possible.
  • the assembled heat exchanger 1 comprises a cooling core 2 consisting of plurality of parallel water tubes and cooling fins, and two header tanks 3, fluidly connected with reciprocal ends of each cooling core tube.
  • the heat exchanger 1 is placed inside the furnace where it undergoes a brazing operation.
  • Fig. 2 shows a fragment of the aluminium flat sheet coated with a cladding layer, from which the header tank 3 shall be formed.
  • the sheet 4 has a width corresponding to the perimeter of the header tank 3, increased by an overlap 5 on one of its longitudinal edges. Another longitudinal edge of the sheet 4 is provided with rectangular projections 6 spaced equidistantly along its length. The width or extension of projections is the same as the thickness of the sheet plate 4.
  • the overlap 5 is also provided with rectangular openings or windows 7 corresponding to projections 6. The width of each opening 7 is greater than the thickness of the sheet 4 and its length corresponds to the length of the projection 6. Moreover the left (on Fig. 2 ) longitudinal edges of openings 7 are aligned with the doted line of folding 8.
  • the sheet so prepared is subsequently folded along the doted lines 8 so as to finally form a rectangular header tank 3 shown on Fig. 3 .
  • the projections 6 are inserted into openings 7.
  • the header tank is closed by bulge forming ends of projections 6 inside openings 7, as shown in Fig. 4 .
  • this process was carried out by using an automatic press having a number of sharp tips corresponding to projections 6 and openings 7.
  • each projection 6 is delaminated in two parts 6' and 6", which locks the position of projection 6 inside the opening 7, securing the header tank from self-opening.
  • Fig. 5 shows a portion of the heat exchanger with the header tank 3 made according to the method of the invention prior to brazing.
  • the heat exchanger can be a radiator, a condenser or intercooler of a motor vehicle.
  • the plurality of cooling core tubes 9 has been already preliminary inserted into appropriate apertures formed on the wall which is opposite and perpendicular to the overlap 5.
  • the method according to the invention is particularly preferred for manufacturing rectangular header tanks, which are of better characteristics than the oval ones.
  • the appropriate pressing, folding and brazing equipment is in common use in radiator plants, the method can easily be implemented and automated.

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  • 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)

Claims (6)

  1. Verfahren zur Herstellung eines gelöteten Profilrohrs, dadurch gekennzeichnet, dass es die Schritte aufweist:
    (i) Vorbereiten einer Aluminiumblechplatte, beschichtet mit einer Ummantelungsschicht, mit einer Länge, die der Länge eines zu formenden Profilrohrs entspricht, und mit einer Überlappung an der ersten ihrer Längskanten und rechteckigen Vorsprüngen mit einer Breite, die im Wesentlichen der Dicke einer Blechplatte entspricht, an der zweiten Längskante,
    (ii) Ausbilden, in der Überlappung, einer Anzahl von rechteckigen Öffnungen, die den Vorsprüngen entsprechen, mit einer Breite, die größer ist als die Dicke der Blechplatte,
    (iii) Falten der Blechplatte, um ein Profilrohr zu bilden, und Einfügen der Vorsprünge in die Öffnungen,
    (iv) Schließen des rohrförmigen Elements durch Ausformen von Enden der Vorsprünge in den Öffnungen; und
    (v) Löten des Profilrohrs.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass das Profilrohr einen rechteckigen Querschnitt hat.
  3. Verfahren gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass Öffnungen und Vorsprünge in gleichem Abstand entlang der Längsachse des Profilrohrs angeordnet sind.
  4. Verfahren gemäß Anspruch 1 oder 2 oder 3, dadurch gekennzeichnet, dass das Profilrohr eine Endkammer eines Wärmetauschers ist.
  5. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, dass es vor dem Löten einen zusätzlichen Schritt eines Ausbildens einer Vielzahl von Öffnungen für Kühlkemrohre aufweist.
  6. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, dass die Überlappung die Wand parallel zu dem Kühlkern des Wärmetauschers abschließt.
EP20040460017 2003-09-10 2004-05-31 Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers Expired - Lifetime EP1515108B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20040460017 EP1515108B1 (de) 2003-09-10 2004-05-31 Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0321092 2003-09-10
GBGB0321092.9A GB0321092D0 (en) 2003-09-10 2003-09-10 Radiator for a motor vehicle
EP20040460017 EP1515108B1 (de) 2003-09-10 2004-05-31 Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers

Publications (3)

Publication Number Publication Date
EP1515108A2 EP1515108A2 (de) 2005-03-16
EP1515108A3 EP1515108A3 (de) 2009-05-06
EP1515108B1 true EP1515108B1 (de) 2010-08-25

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Application Number Title Priority Date Filing Date
EP20040460017 Expired - Lifetime EP1515108B1 (de) 2003-09-10 2004-05-31 Herstellungsverfahren für ein gelötetes Profilrohr, insbesondere ein Sammelrohr eines Wärmetauschers

Country Status (1)

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EP (1) EP1515108B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101347191B1 (ko) * 2011-09-20 2014-01-06 강호일 열교환기 및 그 제조방법
CN103115518A (zh) * 2013-02-20 2013-05-22 安徽天祥空调科技有限公司 用于散热器上的全铝积液器
CN106871699A (zh) * 2015-12-10 2017-06-20 丹佛斯微通道换热器（嘉兴）有限公司 用于换热器的集流管和换热器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2546505Y2 (ja) * 1991-05-23 1997-09-03 株式会社ゼクセル 熱交換器のブラケット取付構造
GB2371505A (en) * 2000-09-20 2002-07-31 Visteon Global Tech Inc Heat exchanger construction
US7121329B2 (en) * 2001-10-30 2006-10-17 Modine Manufacturing Company Plastic tanked heat exchanger-side, header tank assembly

Also Published As

Publication number Publication date
EP1515108A3 (de) 2009-05-06
EP1515108A2 (de) 2005-03-16

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