DE10245788B3 - Heat exchanger making process for vehicle air conditioner involves first assembling tubes and collector boxes and soldering them, then inserting fins in intermediate regions - Google Patents

Heat exchanger making process for vehicle air conditioner involves first assembling tubes and collector boxes and soldering them, then inserting fins in intermediate regions Download PDF

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Publication number
DE10245788B3
DE10245788B3 DE10245788A DE10245788A DE10245788B3 DE 10245788 B3 DE10245788 B3 DE 10245788B3 DE 10245788 A DE10245788 A DE 10245788A DE 10245788 A DE10245788 A DE 10245788A DE 10245788 B3 DE10245788 B3 DE 10245788B3
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Germany
Prior art keywords
heat exchanger
soldering
tubes
ribs
making process
Prior art date
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Expired - Fee Related
Application number
DE10245788A
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German (de)
Inventor
Stefan Dipl.-Ing. Giez
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Daimler AG
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DaimlerChrysler AG
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Priority to DE10245788A priority Critical patent/DE10245788B3/en
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Publication of DE10245788B3 publication Critical patent/DE10245788B3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing heat exchangers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating
    • 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
    • F28F2275/04—Fastening; Joining by brazing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

The heat exchanger making process involves assembling tubes (11) into a tube bundle (12), and fitting collector boxes (13, 14) at the ends and fins (15) in between. The tubes are first joined together with the collector boxes and soldered to each other, and after this, the fins are inserted into the intermediate regions, after which they too are soldered.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Wärmeaustauschers, insbesondere für eine Heiz- und/oder Klimaeinrichtung eines Kraftfahrzeuges, gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for producing a heat exchanger, especially for a heating and / or air conditioning device of a motor vehicle, according to the preamble of claim 1

Wärmeaustauscher, die insbesondere für eine Heiz- und/oder Klimaeinrichtung eines Kraftfahrzeuges bestimmt sind, weisen ein aus Rohren, insbesondere Flachrohren, gebildetes Rohrbündel auf, das beidendig der Rohre fest und dicht mit einem jeweiligen Sammelkasten verbunden ist, so dass das Innere der beiden Sammelkästen und der Rohre von einem Medium, z.B. Wasser, durchströmt werden kann. In den zwischen den Rohren, insbesondere Flachrohren, gebildeten Zwischenbereichen sind vorzugsweise gewellte Rippen angeordnet, die die Kontaktoberfläche für ein durch das Wärmeaustauschernetz quer hindurchgeleitetes anderes Strömungsmittel, z.B. Luft, vergrößern. Ein derartiger Wärmetauscher ist beispielsweise aus der DE 30 44 507 C2 , der DE 195 43 986 A1 sowie der DE 197 23 801 C2 als bekannt zu entnehmen.Heat exchangers, which are intended in particular for a heating and / or air conditioning device of a motor vehicle, comprise a tube bundle formed from tubes, in particular flat tubes, which is firmly and tightly connected to a respective collecting box at both ends of the tubes, so that the interior of the two header boxes and the tubes of a medium such as water, can be flowed through. Corrugated ribs are preferably arranged in the intermediate regions formed between the tubes, in particular flat tubes, which increase the contact surface for another fluid, eg air, which is passed transversely through the heat exchanger net. Such a heat exchanger is for example from the DE 30 44 507 C2 , of the DE 195 43 986 A1 as well as the DE 197 23 801 C2 to be known as known.

Wärmeaustauscher dieser Art werden in der Weise hergestellt, dass die Rohre, die beidendigen Sammelkästen und die Rippen zu einem fertigen Gebilde zusammengefügt und dann in einem Arbeitsgang z.B. im Lötofen zu einer Einheit verlötet werden. Dabei wird unter Umständen keine Rücksicht auf unterschiedliche Querschnittsdicken und/oder Materialien der Komponenten des Wärmeaustauschers und auf mögliche, zum Einsatz kommende Lotwerkstoffe und Löttemperaturen genommen.heat exchangers of this type are made in such a way that the pipes, the at both ends and put the ribs together into a finished structure and then in one operation e.g. in the soldering oven soldered to a unit become. It will be under circumstances no consideration to different cross-sectional thicknesses and / or materials of Components of the heat exchanger and on possible, used soldering materials and soldering temperatures taken.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, bei dem eine differenzierte Behandlung einzelner Komponenten des Wärmeaustauschers ermöglicht ist.The invention is based on the object To provide method of the type mentioned, in which a differentiated Treatment of individual components of the heat exchanger is enabled.

Die Aufgabe ist bei einem Verfahren der eingangs genannten Art gemäß der Erfindung durch die Merkmale im Patentanspruch 1 gelöst. Hiernach werden zunächst in einem Arbeitsgang nur die Rohre und die Sammelkästen zusammengefügt und miteinander durch Löten verbunden. Erst danach werden in die Zwischenbereiche die Rippen auf mechanischem Wege eingefügt. Die Rippen sind somit beim Lötvorgang noch nicht eingebracht und damit auch nicht den Löttemperaturen und dem Lotmaterial ausgesetzt. Dadurch kann beim Löten dem verwendeten Material für die Sammelkästen und die Rohre und der Querschnittsdicke dieser Komponenten in hohem Maße Rechnung getragen werden, wobei auch ein entsprechend geeignetes und vorteilhaftes Lotmaterial zum Einsatz kommen kann und entsprechend geeignete Löttemperaturen gewählt werden können, ohne dass man bei allem z.B. auf die relativ querschnittsdünnen und z.B. aus Kupfer bestehenden Rippen Rücksicht nehmen müsste. Letztere lassen sich nach dem Lötvorgang in einem separaten Arbeitsprozess leicht mechanisch einfügen, wobei die Möglichkeit besteht, die Rippen nach diesem Fügen in einem besonderen Lötvorgang noch mit den Rohren zu verlöten. Bei diesem Lötvorgang kann dann der Querschnittsdicke und dem Material der Rippen Rechnung getragen werden mit entsprechender Wahl des geeigneten Lotmaterial und der Löttemperatur. Das erfindungsgemäße Verfahren ergibt einen Wärmeaustauscher, bei dem dessen Rohrbündel fest und dicht beidendig der Rohre mit einem zugeordneten Sammelkasten verbunden ist und in Zwischenbereichen zwischen den Rohren Rippen mechanisch eingefügt sind, die gewünschtenfalls separat mit den Rohren verlötet sind.The task is in a procedure of the aforementioned type according to the invention solved by the features in claim 1. After that, first in one operation only the tubes and the collecting boxes assembled and with each other by soldering connected. Only then are the ribs in the intermediate areas inserted by mechanical means. The ribs are thus during the soldering process not yet introduced and therefore not the soldering temperatures and exposed to the solder material. This can be used during soldering used material for the collection boxes and the tubes and the cross-sectional thickness of these components to a high degree be worn, with a correspondingly suitable and advantageous Solder material can be used and correspondingly suitable soldering temperatures chosen can be without that in everything, e.g. on the relatively querschnittsdünnen and e.g. copper ribs would have to consider. Latter can be after the soldering process easily mechanically insert in a separate work process, wherein the possibility The ribs after this joining exist in a special soldering process still with the pipes to solder. In this soldering process can then take into account the cross-sectional thickness and the material of the ribs be worn with appropriate choice of the appropriate solder material and the soldering temperature. The inventive method gives a heat exchanger, at the tube bundle tightly and tightly at both ends of the pipes with an associated collection box is connected and in intermediate areas between the pipes ribs mechanically inserted are, if desired soldered separately to the pipes are.

Die Erfindung ist nachfolgend anhand eines in der Zeichnung gezeigten Ausführungsbeispieles näher erläutert.The invention is described below an embodiment shown in the drawing explained in more detail.

Dabei zeigen:Showing:

1 eine schematische perspektivische Ansicht eines Wärmeaustauschers, 1 a schematic perspective view of a heat exchanger,

2 eine schematische perspektivische Ansicht eines Wärmeaustauschers mit noch nicht eingebrachten Rippen, die separat dargestellt sind. 2 a schematic perspective view of a heat exchanger with not yet introduced ribs, which are shown separately.

In 1 und 2 ist schematisch ein Wärmeaustauscher 10 gezeigt, der insbesondere für eine Heiz- und/oder Klimaeinrichtung eines Kraftfahrzeuges geeignet ist. Der Wärmeaustauscher 10 weist ein aus Rohren 11, insbesondere Flachrohren, gebildetes Rohrbündel 12 auf, das beidendig der Rohre 11 fest und dicht mit einem jeweils zugeordneten Sammelkasten 13 und 14 verbunden ist. In den Zwischenbereichen zwischen den einzelnen Rohren 11 sind Rippen 15 angeordnet, die vorzugsweise gewellt oder zickzackartig verlaufen.In 1 and 2 is schematically a heat exchanger 10 shown, which is particularly suitable for a heating and / or air conditioning device of a motor vehicle. The heat exchanger 10 indicates a tube 11 , in particular flat tubes, formed tube bundle 12 on, at both ends of the tubes 11 tight and tight with a respective associated collection box 13 and 14 connected is. In the intermediate areas between the individual pipes 11 are ribs 15 arranged, which preferably run wavy or zigzag.

Ein derartiger Wärmeaustauscher 10 wird gemäß der Erfindung in der Weise hergestellt, dass zunächst nur die Rohre 11 und die jeweiligen Sammelkästen 13 und 14 zusammengefügt und miteinander durch Löten verbunden werden, so dass sich das entsprechende Bauteil in 2 ergibt. Die dort separat gezeigten Rippen 15, die z.B. entsprechend zickzackförmig oder wellenförmig geformt bereitgestellt sind, werden hiernach in die jeweiligen Zwischenbereiche 16 jeweils zwischen zwei Rohren 11 mechanisch eingefügt. Dabei können die nachträglich eingefügten Rippen in einem zweiten Lötvorgang auch noch mit den Rohren 11 verlötet werden.Such a heat exchanger 10 is made according to the invention in such a way that initially only the tubes 11 and the respective collection boxes 13 and 14 be joined together and connected by soldering, so that the corresponding component in 2 results. The ribs shown separately there 15 For example, if they are provided in a zigzag or wavy shape, for example, they become the respective intermediate areas 16 each between two pipes 11 mechanically inserted. In this case, the subsequently inserted ribs in a second soldering even with the pipes 11 be soldered.

Claims (4)

Verfahren zur Herstellung eines Wärmeaustauschers, insbesondere für eine Heiz- und/oder Klimaeinrichtung eines Kraftfahrzeuges, bei dem ein aus Rohren (11), insbesondere Flachrohren, gebildetes Rohrbündel (12) an beiden Enden mit jeweiligen Sammelkästen (13,14) und in den Zwischenbereichen (16) zwischen den Rohren (11) mit Rippen (15) versehen wird, dadurch gekennzeichnet , dass zunächst die Rohre (11) und die jeweiligen Sammelkästen (13,14) zusammengefügt und miteinander durch Löten verbunden werden und dass hiernach die Rippen (15) in die Zwischenbereiche (16) eingefügt werden.Process for producing a heat exchanger, in particular for a heating and / or air conditioning device of a motor vehicle, in which one of tubes ( 11 ), in particular flat tubes, formed tube bundle ( 12 ) at both ends with respective collection boxes ( 13 . 14 ) and in the intermediate areas ( 16 ) between the pipes ( 11 ) with ribs ( 15 ), characterized in that first the tubes ( 11 ) and the respective collection boxes ( 13 . 14 ) and joined together by soldering and that thereafter the ribs ( 15 ) into the intermediate areas ( 16 ). Verfahren nach Anspruchs 1, dadurch gekennzeichnet, dass die Rippen (15) nach dem Fügen in einem besonderen Lötvorgang verlötet werden.Method according to claim 1, characterized in that the ribs ( 15 ) are soldered after joining in a special soldering. Wärmeaustauscher, insbesondere für eine Heiz- und/oder Klimaeinrichtung eines Kraftfahrzeuges, der nach dem Verfahren nach Anspruch 1 hergestellt ist, dadurch gekennzeichnet, dass dessen Rohrbündel (12) beidendig der Rohre (11) fest und dicht mit einem zugeordneten Sammelkasten (13,14) verbunden ist und dass in den Zwischenbereichen (16) zwischen den Rohren (11) Rippen (15) mechanisch eingefügt sind.Heat exchanger, in particular for a heating and / or air conditioning device of a motor vehicle, which is produced by the method according to claim 1, characterized in that its tube bundle ( 12 ) at both ends of the tubes ( 11 ) tightly and tightly with an associated collection box ( 13 . 14 ) and that in the intermediate areas ( 16 ) between the pipes ( 11 ) Ribs ( 15 ) are mechanically inserted. Wärmeaustauscher nach Anspruch 3, dadurch gekennzeichnet, dass die Rippen (15) mit den Rohren (11) separat verlötet sind.Heat exchanger according to claim 3, characterized in that the ribs ( 15 ) with the pipes ( 11 ) are soldered separately.
DE10245788A 2002-10-01 2002-10-01 Heat exchanger making process for vehicle air conditioner involves first assembling tubes and collector boxes and soldering them, then inserting fins in intermediate regions Expired - Fee Related DE10245788B3 (en)

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DE10245788A DE10245788B3 (en) 2002-10-01 2002-10-01 Heat exchanger making process for vehicle air conditioner involves first assembling tubes and collector boxes and soldering them, then inserting fins in intermediate regions

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DE10245788A DE10245788B3 (en) 2002-10-01 2002-10-01 Heat exchanger making process for vehicle air conditioner involves first assembling tubes and collector boxes and soldering them, then inserting fins in intermediate regions

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044507C2 (en) * 1979-12-20 1991-11-14 Modine Manufacturing Co., Racine, Wis., Us
DE19543986A1 (en) * 1995-11-25 1997-05-28 Behr Gmbh & Co Heat exchanger and a method of manufacturing a heat exchanger
DE19723801C2 (en) * 1996-06-06 2002-04-18 Zexel Valeo Climate Contr Corp heat exchangers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3044507C2 (en) * 1979-12-20 1991-11-14 Modine Manufacturing Co., Racine, Wis., Us
DE19543986A1 (en) * 1995-11-25 1997-05-28 Behr Gmbh & Co Heat exchanger and a method of manufacturing a heat exchanger
DE19723801C2 (en) * 1996-06-06 2002-04-18 Zexel Valeo Climate Contr Corp heat exchangers

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