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EP1310748A2 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP1310748A2
EP1310748A2 EP02023317A EP02023317A EP1310748A2 EP 1310748 A2 EP1310748 A2 EP 1310748A2 EP 02023317 A EP02023317 A EP 02023317A EP 02023317 A EP02023317 A EP 02023317A EP 1310748 A2 EP1310748 A2 EP 1310748A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tube
exchanger according
collector
manifold
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
EP02023317A
Other languages
German (de)
French (fr)
Other versions
EP1310748A3 (en
EP1310748B1 (en
Inventor
Martin Dipl.-Ing Kaspar
Michael Kohl
Gerrit Dr. Ing. Wölk
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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
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Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1310748A2 publication Critical patent/EP1310748A2/en
Publication of EP1310748A3 publication Critical patent/EP1310748A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0442—Condensers with an integrated receiver characterised by the mechanical fixation of the receiver to the header
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/044—Condensers with an integrated receiver
    • F25B2339/0446—Condensers with an integrated receiver characterised by the refrigerant tubes connecting the header of the condenser to the receiver; Inlet or outlet connections to receiver
    • 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

Definitions

  • the invention relates to a heat exchanger, in particular a Refrigerant condenser, in particular for motor vehicle air conditioners, consisting of a tube-rib block and arranged on both sides Headers which receive the ends of the tubes of the tube and fin block, and arranged from a parallel to a manifold Collector, which via two overflow openings with the manifold in Refrigerant connection is.
  • a heat exchanger in particular a Refrigerant condenser, in particular for motor vehicle air conditioners, consisting of a tube-rib block and arranged on both sides Headers which receive the ends of the tubes of the tube and fin block, and arranged from a parallel to a manifold Collector, which via two overflow openings with the manifold in Refrigerant connection is.
  • collectors may be made of a first example welded Pipe and a second example short, the two overflow comprising composite pipe piece.
  • a capacitor was known from DE-A 198 48 744 of the applicant.
  • the collector can be integrally formed from a tube, wherein the tube may be formed from a part or from at least two pipe shells.
  • the known from DE 198 48 744 capacitor is among other things in that the collector is formed in two parts: it consists on the one hand from a welded tube, which in terms of its Dimensioning, in particular the wall thickness, the prevailing Operating pressure is adjusted, and on the other hand from a short piece of pipe, which is designed as an extrusion part and has a greater wall thickness. The latter is useful to work this part mechanically better to be able to.
  • the manifold and the collector are thus two separate components, the connectable to each other and are preferably be soldered.
  • For the soldering is a fixation of both parts to each other before the whole Capacitor is spent in the soldering oven for soldering. This fixation takes place in the known capacitor by a tack weld.
  • Such a Operation is atypical for a soldered capacitor, i. H. production engineering seen disadvantageous, as expensive.
  • connection of manifold and collector in a capacitor of the type mentioned to improve to a solderable construction, which avoids a fixation of both parts by tack welding.
  • header and collector are covered by a cover fixed against each other and positioned so that they subsequently can be soldered without further fixing aids.
  • the end cover On the one hand, it is pressed into the pipe end of the collector and on the other hand surrounds with a lateral extension like a cap the adjacent manifold. Both the pressed in the pipe end closure part as well as the cap-shaped extension are with the two Soldered pipe ends, so that subsequently a firm connection between Collector and manifold is made. Through this end cap is thus created a soldering construction, so that on further fixative, such as tack welding, can be dispensed with.
  • the manifold formed in two parts, d. H. On the one hand, it has a bottom part with passages for the flat tubes and on the other hand, a lid part, which with the bottom part is soldered over two longitudinal seams.
  • a lid part which with the bottom part is soldered over two longitudinal seams.
  • the collar-like passages are as circumferential collar formed at least a portion of its extension in the direction of the collector or a part of the collector protrude.
  • the pipe section which is preferably produced by extrusion, a contact surface on, which is the cover part of the manifold with its contour clings to form a contact surface for soldering both parts becomes.
  • the object of the invention is also characterized by the features of the independent claim 7 solved.
  • the mounted on the manifold projections or passages engage in the overflow so that they serve as a fixation of both Parts act and, if necessary, beyond a defined Form solder gap for safe Dichtlötung. It is also advantageous if the Fit between holes and protrusions or punctures as Clamping seat is formed and thus in addition to the positive connection and a Force or friction is effected.
  • the condenser including collector can thus possibly without a soldering device or tack welding are soldered in the soldering oven.
  • the projections or passages can be particularly easily through hole-punching embossing produce when the manifold is formed in two parts, because then enough space for the punch and the embossing tool available stands.
  • Fig. 1 shows a structural unit 1, consisting of a manifold 2, and a collector 3 for a refrigerant condenser, not shown, for an automotive air conditioning system.
  • a collector 3 for a refrigerant condenser not shown, for an automotive air conditioning system.
  • Such capacitors in which the Integrated collector with the manifold or with the entire capacitor is known from DE-C 42 38 853 of the applicant, whose contents hereby expressly to the disclosure content of the present application belongs. This construction will be referred to below.
  • the collecting tube 2 has slot-shaped passages over its entire length 4, which are not shown tubes, such as flat tubes, a tube-rib block of the capacitor.
  • the pipe ends are in these Lugs soldered.
  • the collector 3 is composed of two parts, namely a thin-walled tube 5, for example, welded or soldered or otherwise connected and a short, as Extrusion part formed pipe piece 6.
  • a cover 7 At the upper end of the tube 3 is arranged a cover 7, which closes the tube 3 on the one hand and on the other hand, the manifold 2 with a cap-like extension part 7a encompasses and overlaps.
  • FIG. 2 shows the assembly 1 according to FIG. 1 partly in an exploded view, FIG. wherein in the lower part of the drawing, the manifold 2 and the 3 collectors are shown as separate parts.
  • the manifold has a Cover part 2a, which in its lower region two collar-shaped Passages 8 and 9 has. Corresponding to these passages 8 and 9, two holes 10 and 11 are provided in the pipe section 6, with respect to its inner diameter the outer diameter of the collar 8 and 9 correspond. Since the manifold 2 is formed in two parts, d. H. out the bottom part 2b and the cover part 2a, the collar 8 can be and 9 relatively easy to produce by a stamping / embossing process.
  • the pipe piece 6 has a concave bearing surface 6 a, which corresponds to the outer contour of the Cover part 2b is adapted.
  • FIG. 2a shows a further embodiment of the invention, wherein instead of the circular passages 8,9 of FIG. 2, only projections 101, 102 are provided in the shell 100 of the manifold.
  • the projections are arranged so that they into the openings 110, 111 of the collector Engage 120 and fix it to the manifold 100.
  • two opposite projections 101 may be provided.
  • more than two projections be provided per fluid connection between manifold and collector, as shown for example for the projections 102 and the opening 111 is. In this case, four star-shaped projections are provided.
  • per opening 110,111 provided only one projection on the manifold 100 at a time, wherein they engage in such a way in the openings that they ear collector and collectors fix relative to each other.
  • Fig. 3 shows a sectional view through the assembly 1 according to FIGS. 1 and Fig. 2, again using the same reference numerals for the same components become.
  • the tube 5 is a welded aluminum tube and semi-finished material produced. It corresponds with respect to its wall thickness the occurring operating pressure and thus has a minimal weight.
  • This Tube 5 is inserted with its front end 5a in the pipe section 6 and soldered to it.
  • the pipe section 6 is made as an extruded part and has 2 holes 10 and 11, in which the collar 8 and 9 engage the manifold 2.
  • the collars 8 and 9 thus also serve - even before the soldering - the fixation of the manifold 2 opposite the collector 3 or opposite the pipe section 6.
  • the manifold 2 is - as already mentioned - formed in two parts and consists of a cover part 2a and a bottom part 2b, in which slots 4 are punched. How out 3a, bottom part 2b and cover part 2a are approximately half-shell-shaped formed and soldered together in the region of a longitudinal seam 2c.
  • the Collector 2 is closed at the front by a cover 12 and 13 respectively. Between the two overflow openings 10 and 11 is located in Collection tube 2 a partition 14.
  • the bottom 6a of the pipe section 6 or of the collector 3 is by a sealing plug, not shown (z. B. according to DE-A 100 39 260 of the Applicant) closed.
  • the upper end of the pipe 5 b of the collector 3 is closed by the lid 7, which like a Plug is pressed into the pipe end 5 b and held in a force-locking manner.
  • the lid 7 has a laterally projecting extension 7a, which extends over the entire end face of the manifold 2. From the frontal Part 7a are tabs 7b (Fig. 2 and Fig. 3a) and 7c angled, the correspond in shape to the circumference of the manifold 2 and narrow on the outer surface of the manifold 2 create.
  • Gap 15 Between the tubes 5 and 2 or its cover part 2a is a Gap 15, which corresponds approximately to the wall thickness of the tube 5.
  • Fixing measures - be it the lid 7, 7a or be it Passages 8, 9 - alone or together with another fixation are sufficient to be able to perform a perfect soldering.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

A collector (3) consisting of a tube (5) to which a tube piece (6) is brazed at the lower end (5a), is connected to a collecting tube (2) of the heat exchanger, by making collars (8,9) formed in the lower area of the collecting tube engaged with bores (10,11) formed in the tube piece. An extension (7a) of a cover (7) which seals an upper end (5b) of the collector is used to seal the upper end of the header. <??>Independent claims are also included for the following: <??>(1) manufacturing method of heat exchanger; and <??>(2) refrigerant condenser in vehicle air conditioning system.

Description

Die Erfindung bezieht sich auf einen Wärmetauscher, wie insbesondere einem Kältemittelkondensator, insbesondere für Kraftfahrzeugklimaanlagen, bestehend aus einem Rohr-Rippen-Block und beiderseits angeordneten Sammelrohren, welche die Enden der Rohre des Rohr-Rippen-Blockes aufnehmen, sowie aus einem parallel zu einem Sammelrohr angeordneten Sammler, welcher über zwei Überströmöffnungen mit dem Sammelrohr in Kältemittelverbindung steht.The invention relates to a heat exchanger, in particular a Refrigerant condenser, in particular for motor vehicle air conditioners, consisting of a tube-rib block and arranged on both sides Headers which receive the ends of the tubes of the tube and fin block, and arranged from a parallel to a manifold Collector, which via two overflow openings with the manifold in Refrigerant connection is.

Solche Sammler können aus einem ersten beispielsweise geschweißten Rohr und einem zweiten beispielsweise kurzen, die beiden Überströmöffnungen aufweisenden Rohrstück zusammengesetzt sein. Ein solcher Kondensator wurde durch die DE-A 198 48 744 der Anmelderin bekannt. Auch kann der Sammler einstückig aus einem Rohr gebildet sein, wobei das Rohr aus einem Teil oder aus zumindest zwei Rohrschalen gebildet sein kann.Such collectors may be made of a first example welded Pipe and a second example short, the two overflow comprising composite pipe piece. Such a capacitor was known from DE-A 198 48 744 of the applicant. Also the collector can be integrally formed from a tube, wherein the tube may be formed from a part or from at least two pipe shells.

Der aus der DE 198 48 744 bekannte Kondensator ist unter anderem dadurch gekennzeichnet, dass der Sammler zweistückig ausgebildet ist: er besteht einerseits aus einem geschweißten Rohr, welches hinsichtlich seiner Dimensionierung, wie insbesondere der Wandstärke, dem herrschenden Betriebsdruck angepaßt ist, und andererseits aus einem kurzen Rohrstück, welches als Extrusionsteil ausgebildet ist und eine größere Wandstärke besitzt. Letzteres ist zweckmäßig, um dieses Teil mechanisch besser bearbeiten zu können. The known from DE 198 48 744 capacitor is among other things in that the collector is formed in two parts: it consists on the one hand from a welded tube, which in terms of its Dimensioning, in particular the wall thickness, the prevailing Operating pressure is adjusted, and on the other hand from a short piece of pipe, which is designed as an extrusion part and has a greater wall thickness. The latter is useful to work this part mechanically better to be able to.

Das Sammelrohr und der Sammler sind somit zwei separate Bauteile, die miteinander verbindbar und vorzugsweise verlötebar sind. Für die Verlötung ist eine Fixierung beider Teile zueinander zweckmäßig, bevor der gesamte Kondensator in den Lötofen zum Löten verbracht wird. Diese Fixierung erfolgt beim bekannten Kondensator durch eine Heftschweißung. Ein solcher Arbeitsgang ist für einen gelöteten Kondensator atypisch, d. h. fertigungstechnisch gesehen nachteilig, da teuer.The manifold and the collector are thus two separate components, the connectable to each other and are preferably be soldered. For the soldering is a fixation of both parts to each other before the whole Capacitor is spent in the soldering oven for soldering. This fixation takes place in the known capacitor by a tack weld. Such a Operation is atypical for a soldered capacitor, i. H. production engineering seen disadvantageous, as expensive.

Es ist daher Aufgabe der vorliegenden Erfindung, die Verbindung von Sammelrohr und Sammler bei einem Kondensator der eingangs genannten Art dahingehend zu verbessern, dass sich eine lötgerechte Konstruktion ergibt, die eine Fixierung beider Teile durch Heftschweißen vermeidet.It is therefore an object of the present invention, the connection of manifold and collector in a capacitor of the type mentioned to improve to a solderable construction, which avoids a fixation of both parts by tack welding.

Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen des Patentanspruches 1. Demzufolge werden Sammelrohr und Sammler über einen Abschlussdeckel gegeneinander fixiert und derart positioniert, dass sie anschließend ohne weitere Fixierhilfen verlötet werden können. Der Abschlussdeckel wird einerseits in das Rohrende des Sammlers eingepresst und umgreift andererseits mit einer seitlichen Verlängerung wie eine Kappe das benachbarte Sammelrohr. Sowohl das im Rohrende eingepresste Verschlussteil als auch die kappenförmige Verlängerung werden mit den beiden Rohrenden verlötet, so dass anschließend eine feste Verbindung zwischen Sammler und Sammelrohr hergestellt ist. Durch diesen Abschlussdeckel ist somit eine lötgerechte Konstruktion geschaffen, so dass auf weitere Fixiermittel, wie zum Beispiel Heftschweißen, verzichtet werden kann.The solution to this problem arises from the features of claim 1. As a result, header and collector are covered by a cover fixed against each other and positioned so that they subsequently can be soldered without further fixing aids. The end cover On the one hand, it is pressed into the pipe end of the collector and on the other hand surrounds with a lateral extension like a cap the adjacent manifold. Both the pressed in the pipe end closure part as well as the cap-shaped extension are with the two Soldered pipe ends, so that subsequently a firm connection between Collector and manifold is made. Through this end cap is thus created a soldering construction, so that on further fixative, such as tack welding, can be dispensed with.

Nach einer vorteilhaften Ausgestaltung der Erfindung ist das Sammelrohr zweiteilig ausgebildet, d. h. es weist einerseits ein Bodenteil mit Durchzügen für die Flachrohre auf und andererseits ein Deckelteil, welches mit dem Bodenteil über zwei Längsnähte verlötet wird. In das Deckelteil sind kragenartige Durchzüge eingebracht, die in die Überströmöffnungen des Rohrstückes des Sammlers eingreifen und somit auch bereits vor dem Löten für eine Fixierung beider Teile sorgen. Die kragenartigen Durchzüge sind dabei als umlaufende Kragen ausgebildet, die zumindest einen Teilbereich ihrer Erstreckung in Richtung auf den Sammler bzw. ein Teil des Sammlers hervorstehen.According to an advantageous embodiment of the invention is the manifold formed in two parts, d. H. On the one hand, it has a bottom part with passages for the flat tubes and on the other hand, a lid part, which with the bottom part is soldered over two longitudinal seams. In the lid part are collar-like Passages introduced into the overflow openings of the pipe section engage the collector and thus even before soldering for a fixation Both parts provide. The collar-like passages are as circumferential collar formed at least a portion of its extension in the direction of the collector or a part of the collector protrude.

In einer weiteren vorteilhaften Ausgestaltung der Erfindung weist das Rohrstück, welches vorzugsweise durch Extrusion hergestellt ist, eine Anlagefläche auf, an welche sich das Deckelteil des Sammelrohres mit seiner Kontur anschmiegt, so dass eine Kontaktfläche zum Verlöten beider Teile gebildet wird.In a further advantageous embodiment of the invention, the pipe section, which is preferably produced by extrusion, a contact surface on, which is the cover part of the manifold with its contour clings to form a contact surface for soldering both parts becomes.

Die Aufgabe der Erfindung wird auch durch die Merkmale des Nebenanspruches 7 gelöst. Die am Sammelrohr angebrachten Vorsprünge oder Durchzüge greifen derart in die Überströmöffnungen ein, dass sie als Fixierung beider Teile wirken und gegebenenfalls darüber hinaus einen definierten Lotspalt für eine sichere Dichtlötung bilden. Vorteilhaft ist es ferner, wenn die Passung zwischen Bohrungen und Vorsprüngen oder Durchzügen als Klemmsitz ausgebildet ist und somit zusätzlich zum Formschluss auch ein Kraft- bzw. Reibschluss bewirkt wird.The object of the invention is also characterized by the features of the independent claim 7 solved. The mounted on the manifold projections or passages engage in the overflow so that they serve as a fixation of both Parts act and, if necessary, beyond a defined Form solder gap for safe Dichtlötung. It is also advantageous if the Fit between holes and protrusions or punctures as Clamping seat is formed and thus in addition to the positive connection and a Force or friction is effected.

Der Kondensator einschließlich Sammler kann somit gegebenenfalls ohne eine Lötvorrichtung oder Heftschweißen im Lötofen gelötet werden. Die Vorsprünge oder Durchzüge lassen sich besonders einfach durch Loch-Stanz-Prägen herstellen, wenn das Sammelrohr zweiteilig ausgebildet ist, weil dann genügend Platz für den Lochstempel und das Prägewerkzeug zur Verfügung steht.The condenser including collector can thus possibly without a soldering device or tack welding are soldered in the soldering oven. The projections or passages can be particularly easily through hole-punching embossing produce when the manifold is formed in two parts, because then enough space for the punch and the embossing tool available stands.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben. Es zeigen:

  • Fig. 1 eine perspektivische Gesamtansicht der Einheit Sammelrohr und Sammler,
  • Fig. 2 eine Explosionsdarstellung der Einheit Sammelrohr und Sammler,
  • Fig. 2a eine Darstellung eines Details der Erfindung,
  • Fig. 3 einen Schnitt durch die Einheit Sammelrohr und Sammler und
  • Fig. 3a einen Querschnitt durch die Einheit gemäß Fig. 3 entlang der Linie I - I.
    • Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it:
  • 1 is an overall perspective view of the unit manifold and collector,
  • 2 is an exploded view of the unit manifold and collector,
  • 2a is a representation of a detail of the invention,
  • Fig. 3 is a section through the unit manifold and collector and
  • Fig. 3a shows a cross section through the unit of FIG. 3 along the line I - I.

    • Die Fig. 1 zeigt eine Baueinheit 1, bestehend aus einem Sammelrohr 2, und einem Sammler 3 für einen nicht dargestellten Kältemittelkondensator für eine Kraftfahrzeugklimaanlage. Solche Kondensatoren, bei denen der Sammler mit dem Sammelrohr bzw. mit dem gesamten Kondensator integriert ist, sind durch die DE-C 42 38 853 der Anmelderin bekannt, deren Inhalt hiermit ausdrücklich zum Offenbarungsgehalt der vorliegenden Anmeldung gehört. Auf diese Bauweise wird im Folgenden Bezug genommen.Fig. 1 shows a structural unit 1, consisting of a manifold 2, and a collector 3 for a refrigerant condenser, not shown, for an automotive air conditioning system. Such capacitors, in which the Integrated collector with the manifold or with the entire capacitor is known from DE-C 42 38 853 of the applicant, whose contents hereby expressly to the disclosure content of the present application belongs. This construction will be referred to below.

    Das Sammelrohr 2 weist über seine gesamte Länge schlitzförmige Durchzüge 4 auf, welche nicht dargestellte Rohre, wie Flachrohre, eines Rohr-Rippen-Blockes des Kondensators aufnehmen. Die Rohrenden sind in diesen Durchzügen verlötet. Der Sammler 3 ist aus zwei Teilen zusammengesetzt, nämlich einem dünnwandigen Rohr 5, das beispielsweise geschweißt oder gelötet oder anderweitig verbunden sein kann und einem kurzen, als Extrusionsteil ausgebildeten Rohrstück 6. Am oberen Ende des Rohres 3 ist ein Abschlussdeckel 7 angeordnet, der einerseits das Rohr 3 verschließt und andererseits das Sammelrohr 2 mit einem kappenartigen Verlängerungsteil 7a umgreift und übergreift.The collecting tube 2 has slot-shaped passages over its entire length 4, which are not shown tubes, such as flat tubes, a tube-rib block of the capacitor. The pipe ends are in these Lugs soldered. The collector 3 is composed of two parts, namely a thin-walled tube 5, for example, welded or soldered or otherwise connected and a short, as Extrusion part formed pipe piece 6. At the upper end of the tube 3 is arranged a cover 7, which closes the tube 3 on the one hand and on the other hand, the manifold 2 with a cap-like extension part 7a encompasses and overlaps.

    Fig. 2 zeigt die Baueinheit 1 gemäß Fig. 1 zum Teil in einer Explosivdarstellung, wobei im unteren Teil der Zeichnung das Sammelrohr 2 und der Sammler 3 als separate Teile dargestellt sind. Das Sammelrohr weist ein Deckelteil 2a auf, welches in seinem unteren Bereich zwei kragenförmige Durchzüge 8 und 9 aufweist. Korrespondierend zu diesen Durchzügen 8 und 9 sind in dem Rohrstück 6 zwei Bohrungen 10 und 11 vorgesehen, die bezüglich ihres Innendurchmessers dem Außendurchmesser der Kragen 8 und 9 entsprechen. Da das Sammelrohr 2 zweiteilig ausgebildet ist, d. h. aus dem Bodenteil 2b und dem Deckelteil 2a besteht, lassen sich die Kragen 8 und 9 relativ einfach durch einen Stanz/Prägevorgang herstellen. Das Rohrstück 6 weist eine konkave Anlagefläche 6a auf, die der Außenkontur des Deckelteiles 2b angepaßt ist.FIG. 2 shows the assembly 1 according to FIG. 1 partly in an exploded view, FIG. wherein in the lower part of the drawing, the manifold 2 and the 3 collectors are shown as separate parts. The manifold has a Cover part 2a, which in its lower region two collar-shaped Passages 8 and 9 has. Corresponding to these passages 8 and 9, two holes 10 and 11 are provided in the pipe section 6, with respect to its inner diameter the outer diameter of the collar 8 and 9 correspond. Since the manifold 2 is formed in two parts, d. H. out the bottom part 2b and the cover part 2a, the collar 8 can be and 9 relatively easy to produce by a stamping / embossing process. The pipe piece 6 has a concave bearing surface 6 a, which corresponds to the outer contour of the Cover part 2b is adapted.

    Die Figur 2a zeigt ein weiteres Ausführungsbeispiel der Erfindung, wobei statt der kreisrunden Durchzüge 8,9 der Figur 2 lediglich Vorsprünge 101, 102 in der Schale 100 des Sammelrohres vorgesehen sind. Die Vorsprünge sind dabei so angeordnet, daß sie in die Öffnungen 110, 111 des Sammlers 120 eingreifen und diesen zu dem Sammelrohr 100 fixieren. Vorteilhaft können dabei zwei gegenüberliegende Vorsprünge 101 vorgesehen sein. Bei einem anderen Ausführungsbeispiel können auch mehr als zwei Vorsprünge pro Fluidverbindung zwischen Sammelrohr und Sammler vorgesehen sein, wie es beispielsweise für die Vorsprünge 102 und die Öffnung 111 dargestellt ist. Dabei sind vier sternförmig angeordnete Vorsprünge vorgesehen.FIG. 2a shows a further embodiment of the invention, wherein instead of the circular passages 8,9 of FIG. 2, only projections 101, 102 are provided in the shell 100 of the manifold. The projections are arranged so that they into the openings 110, 111 of the collector Engage 120 and fix it to the manifold 100. Can be advantageous while two opposite projections 101 may be provided. at In another embodiment, more than two projections be provided per fluid connection between manifold and collector, as shown for example for the projections 102 and the opening 111 is. In this case, four star-shaped projections are provided.

    Bei einem weiteren nicht dargestellten Ausführungsbeispiel ist auch pro Öffnung 110,111 nur jeweils nur ein Vorsprung an dem Sammelrohr 100 vorgesehen, wobei diese derart in die Öffnungen eingreifen, daß sie Sammlerohr und Sammler relatuiv zueinander fixieren.In another embodiment not shown is also per opening 110,111 provided only one projection on the manifold 100 at a time, wherein they engage in such a way in the openings that they ear collector and collectors fix relative to each other.

    Fig. 3 zeigt eine Schnittdarstellung durch die Baueinheit 1 gemäß Fig. 1 und Fig. 2, wobei wiederum gleiche Bezugszeichen für gleiche Bauteile verwendet werden. Das Rohr 5 ist ein geschweißtes Aluminiumrohr und aus Halbzeugmaterial hergestellt. Es entspricht hinsichtlich seiner Wandstärke dem auftretenden Betriebsdruck und weist somit ein minimales Gewicht auf. Dieses Rohr 5 ist mit seinem stirnseitigen Ende 5a in das Rohrstück 6 eingesetzt und mit diesem verlötet. Das Rohrstück 6 ist als extrudiertes Teil hergestellt und weist 2 Bohrungen 10 und 11 auf, in welche die Kragen 8 und 9 des Sammelrohres 2 eingreifen. Die Kragen 8 und 9 dienen somit auch - bereits vor der Verlötung - der Fixierung des Sammelrohres 2 gegenüber dem Sammler 3 bzw. gegenüber dem Rohrstück 6. Das Sammelrohr 2 ist - wie bereits erwähnt - zweiteilig ausgebildet und besteht aus einem Deckelteil 2a und einem Bodenteil 2b, in welches Schlitze 4 gestanzt sind. Wie aus Fig. 3a ersichtlich, sind Bodenteil 2b und Deckelteil 2a etwa halbschalenförmig ausgebildet und im Bereich einer Längsnaht 2c miteinander verlötet. Das Sammelrohr 2 ist stirnseitig jeweils durch einen Deckel 12 und 13 verschlossen. Zwischen den beiden Überströmöffnungen 10 und 11 befindet sich im Sammelrohr 2 eine Trennwand 14. Der Boden 6a des Rohrstückes 6 bzw. des Sammlers 3 wird durch einen nicht dargestellten Verschlussstopfen (z. B. gemäß DE-A 100 39 260 der Anmelderin) verschlossen. Das obere Rohrende 5b des Sammlers 3 ist durch den Deckel 7 verschlossen, der wie ein Stopfen in das Rohrende 5b hineingedrückt und kraftschlüssig gehalten wird. Der Deckel 7 weist eine seitlich abragende Verlängerung 7a auf, die sich über die gesamte Stirnfläche des Sammelrohres 2 erstreckt. Von dem stirnseitigen Teil 7a sind Lappen 7b (Fig. 2 und Fig. 3a) und 7c abgewinkelt, die in ihrer Form dem Umfang des Sammelrohres 2 entsprechen und sich eng an die Außenfläche des Sammelrohres 2 anlegen. Bei der Montage der beiden Rohre 2 und 3 werden diese zunächst in der Weise positioniert, dass die Kragen 8 und 9 in Eingriff mit den Bohrungen 10 und 11 gebracht werden. Damit liegen beide Rohre 2 und 3 etwa parallel zueinander. Dann kann als nächster Montageschritt der Abschlussdeckel 7 in das Rohrende 5b eingedrückt werden; gleichzeitig umgreift das kappenartige Verlängerungsstück 7a mit seinen beiden Lappen 7b und 7c das Ende des Sammelrohres 2 und fixiert dieses in seiner Position. Da die Kragen 8 und 9 ebenfalls ein leichtes Übermaß gegenüber den Bohrungen 10 und 11 haben, ergibt sich auch dort ein Klemmsitz, so dass beide Rohre 2 und 3 gegeneinander fixiert sind. Nach der Komplettierung zu einem vollständigen Kondensator kann diese Baueinheit 1 im Ofen zusammen mit den übrigen Teilen des Kondensators, die ebenfalls aus einer Aluminiumlegierung bestehen, in einem Arbeitsgang verlötet werden. Nach dieser Lötung bildet einerseits der Deckel einen dichten Abschluß des Rohres 3 und andererseits die Kragen 8 und 9 eine dichte Verbindung mit den Bohrungen 10 und 11.Fig. 3 shows a sectional view through the assembly 1 according to FIGS. 1 and Fig. 2, again using the same reference numerals for the same components become. The tube 5 is a welded aluminum tube and semi-finished material produced. It corresponds with respect to its wall thickness the occurring operating pressure and thus has a minimal weight. This Tube 5 is inserted with its front end 5a in the pipe section 6 and soldered to it. The pipe section 6 is made as an extruded part and has 2 holes 10 and 11, in which the collar 8 and 9 engage the manifold 2. The collars 8 and 9 thus also serve - even before the soldering - the fixation of the manifold 2 opposite the collector 3 or opposite the pipe section 6. The manifold 2 is - as already mentioned - formed in two parts and consists of a cover part 2a and a bottom part 2b, in which slots 4 are punched. How out 3a, bottom part 2b and cover part 2a are approximately half-shell-shaped formed and soldered together in the region of a longitudinal seam 2c. The Collector 2 is closed at the front by a cover 12 and 13 respectively. Between the two overflow openings 10 and 11 is located in Collection tube 2 a partition 14. The bottom 6a of the pipe section 6 or of the collector 3 is by a sealing plug, not shown (z. B. according to DE-A 100 39 260 of the Applicant) closed. The upper end of the pipe 5 b of the collector 3 is closed by the lid 7, which like a Plug is pressed into the pipe end 5 b and held in a force-locking manner. The lid 7 has a laterally projecting extension 7a, which extends over the entire end face of the manifold 2. From the frontal Part 7a are tabs 7b (Fig. 2 and Fig. 3a) and 7c angled, the correspond in shape to the circumference of the manifold 2 and narrow on the outer surface of the manifold 2 create. When assembling the two Tubes 2 and 3 are initially positioned in such a way that the Collar 8 and 9 are brought into engagement with the holes 10 and 11. So that both tubes 2 and 3 are approximately parallel to each other. Then as Next mounting step of the end cover 7 is pressed into the pipe end 5b become; at the same time engages the cap-like extension piece 7a with its two tabs 7b and 7c, the end of the manifold 2 and fix this in its position. Since the collar 8 and 9 also a light Excess over the holes 10 and 11 have, also arises there a clamping seat, so that both tubes 2 and 3 are fixed against each other. After completion to a complete capacitor this can Assembly 1 in the furnace together with the remaining parts of the condenser, which also consist of an aluminum alloy, in a single operation be soldered. After this soldering, on the one hand, the lid forms a dense one Completion of the tube 3 and on the other hand, the collar 8 and 9 a dense Connection with the holes 10 and 11.

    Zwischen den Rohren 5 und 2 bzw. dessen Deckelteil 2a befindet sich ein Spalt 15, der etwa der Wandstärke des Rohres 5 entspricht.Between the tubes 5 and 2 or its cover part 2a is a Gap 15, which corresponds approximately to the wall thickness of the tube 5.

    Es sei darauf hingewiesen, dass grundsätzlich eine der beiden oben erwähnten Fixiermaßnahmen - sei es der Deckel 7, 7a oder seien es die Durchzüge 8, 9 - für sich allein oder zusammen mit einer anderen Fixierung ausreichend sind, um damit eine einwandfreie Lötung durchführen zu können.It should be noted that in principle one of the two mentioned above Fixing measures - be it the lid 7, 7a or be it Passages 8, 9 - alone or together with another fixation are sufficient to be able to perform a perfect soldering.

    Claims (15)

    Wärmetauscher, wie insbesondere Kältemittelkondensator, insbesondere für eine Kraftfahrzeugklimaanlage, bestehend aus einem Rohr-Rippen-Block und beiderseits angeordneten Sammelrohren, welche die Enden der Rohre aufnehmen, sowie aus einem parallel zu einem Sammelrohr angeordneten Sammler, welcher über zwei Überströmöffnungen mit dem Sammelrohr in Kältemittelverbindung steht und aus einem Rohr und einem kurzen, die beiden Überströmöffnungen aufweisenden Rohrstück zusammengesetzt ist, dadurch gekennzeichnet, dass am Rohrende des Sammlers ein Abschlussdeckel mit einem seitlichen Verlängerungsteil angeordnet ist und dass der Abschlussdeckel mit dem Verlängerungsteil sowohl mit dem Rohr als auch mit dem Sammelrohr verbunden, wie beispielsweise verlötet, ist.Heat exchanger, such as in particular refrigerant condenser, in particular for an automotive air conditioning system consisting of a tube-fin block and collecting tubes arranged on both sides, which receive the ends of the tubes, as well as from a parallel to a manifold arranged collector, which via two overflow openings with the manifold in refrigerant connection stands and is composed of a tube and a short, the two overflow openings having tubular piece, characterized in that at the tube end of the collector a cover with a lateral extension part is arranged and that the end cover connected to the extension part both with the tube and with the manifold , such as soldered, is. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass der Abschlussdeckel ein Verschlussteil aufweist, welches in das Rohrende gepreßt ist.Heat exchanger according to claim 1, characterized in that the end cover has a closure part which is pressed into the pipe end. Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das seitliche Verlängerungsstück kappenartig mit seitlichen Lappen ausgebildet ist, welche das Sammelrohr umgreifen und mit diesem verlötet sind. Heat exchanger according to claim 1 or 2, characterized in that the lateral extension piece is designed like a cap with lateral tabs which engage around the collecting tube and are soldered thereto. Wärmetauscher nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der Abschlussdeckel mit dem Verlängerungsteil der Vorfixierung von Sammelrohr und Sammler dient.Heat exchanger according to claim 1, 2 or 3, characterized in that the end cover with the extension part of the pre-fixing of manifold and collector is used. Wärmetauscher nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, dass das Sammelrohr zweiteilig, d. h. mit einem Deckelteil und einem Bodenteil ausgebildet ist.Heat exchanger according to claim 1, 2, 3 or 4, characterized in that the collecting tube is in two parts, that is formed with a cover part and a bottom part. Wärmetauscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Sammelrohr oder das Deckelteil des Sammelrohrs zwei Durchzüge oder eine Mehrzahl von Vorsprüngen aufweist, die in die Überströmöffnungen des Sammlers eingreifen.Heat exchanger according to one of the preceding claims, characterized in that the collecting tube or the cover part of the collecting tube has two passages or a plurality of projections which engage in the overflow openings of the collector. Wärmetauscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rohrstück eine der Außenkontur des Sammelrohres angepaßte Anlagefläche aufweist.Heat exchanger according to one of the preceding claims, characterized in that the pipe piece has a contact surface adapted to the outer contour of the collecting pipe. Wärmetauscher, insbesondere Kältemittelkondensator, insbesondere für eine Kraftfahrzeugklimaanlage, bestehend aus einem Rohr-Rippen-Block und beiderseits angeordneten Sammelrohren, welche die Enden der Rohre aufnehmen, sowie aus einem parallel zu einem Sammelrohr angeordneten Sammler, welcher über zwei Überströmöffnungen mit einem Sammelrohr in Kältemittelverbindung steht und aus einem Rohr und einem kurzen, die beiden Überströmöffnungen aufweisenden Rohrstück zusammengesetzt ist, dadurch gekennzeichnet, dass das Sammelrohr Durchzüge und/oder Vorsprünge aufweist, die in die Überströmöffnungen des Rohrstückes eingreifen.Heat exchanger, in particular refrigerant condenser, in particular for an automotive air conditioning system, consisting of a tube-fin block and collecting tubes arranged on both sides, which receive the ends of the tubes, as well as from a collector arranged parallel to a manifold, which is in refrigerant communication with a collecting pipe via two overflow openings and is composed of a tube and a short, the two overflow openings having tubular piece, characterized in that the collecting tube has passages and / or projections which engage in the overflow openings of the pipe section. Wärmetauscher nach Anspruch 8, dadurch gekennzeichnet, dass die Überströmöffnungen als Öffnungen, wie Bohrungen oder Stanzungen ausgebildet sind.Heat exchanger according to claim 8, characterized in that the overflow openings are formed as openings, such as holes or punches. Wärmetauscher nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Durchzüge als umlaufende Kragen ausgebildet sind, die formund/oder kraftschlüssig in die Öffnungen eingreifbar ausgebildet sind. Heat exchanger according to claim 8 or 9, characterized in that the passages are formed as circumferential collar, which are formed positively and / or non-positively engageable in the openings. Wärmetauscher nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Vorsprünge als im wesentlichen senkrecht zur Längsachse des Sammlers ausgerichtete Teile ausgebildet sind, die formund/oder kraftschlüssig in die Öffnungen eingreifbar ausgebildet sind.Heat exchanger according to claim 8 or 9, characterized in that the projections are designed as substantially aligned perpendicular to the longitudinal axis of the collector parts which are formed positively and / or non-positively engageable in the openings. Wärmetauscher nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass die Durchzüge und/oder Vorsprünge in Verbindung mit den Überströmöffnungen eine Vorfixierung von Sammler und Sammelrohr bewirken.Heat exchanger according to one of claims 7 to 11, characterized in that the passages and / or projections in connection with the overflow openings cause a prefixing of collector and manifold. Wärmetauscher nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass das Sammelrohr mittels der Durchzüge oder Vorsprünge dicht in die Überströmöffnungen eingelötet ist.Heat exchanger according to one of claims 8 to 12, characterized in that the collecting tube is soldered by means of the passages or projections tightly into the overflow openings. Wärmetauscher nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, dass das Sammelrohr zumindest zweiteilig, beispielsweise mit einem Deckelteil und einem Bodenteil, ausgebildet ist und dass die Durchzüge und/oder Vorsprünge im Deckelteil angeordnet sind.Heat exchanger according to one of claims 8 to 13, characterized in that the collecting tube is formed at least in two parts, for example with a cover part and a bottom part, and that the passages and / or projections are arranged in the cover part. Wärmetauscher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Durchzüge und/oder Vorsprünge durch Tiefziehen oder Stanz-Prägen hergestellt sind.Heat exchanger according to one of the preceding claims, characterized in that the passages and / or projections are produced by deep drawing or stamping.
    EP02023317A 2001-11-08 2002-10-18 Heat exchanger Expired - Lifetime EP1310748B1 (en)

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    US7334429B2 (en) 2002-08-31 2008-02-26 Behr Gmbh & Co. Kg Refrigerant condenser for motor vehicle air-conditioning systems
    WO2005050119A3 (en) * 2003-11-14 2005-12-08 Behr Gmbh & Co Kg Heat exchanger and collector/drier unit for a heat exchanger
    WO2005052470A1 (en) * 2003-11-14 2005-06-09 Behr Gmbh & Co. Kg Collection container for a heat exchanger and associated heat exchanger
    US7832230B2 (en) 2004-05-05 2010-11-16 Behr Gmbh & Co, Kg Condenser for an air-conditioning system, particularly for a motor vehicle
    KR101318629B1 (en) * 2007-02-20 2013-10-16 한라비스테온공조 주식회사 Condenser with Receiver Dryer
    DE102008007597A1 (en) * 2008-02-04 2009-08-06 Behr Gmbh & Co. Kg Multi-chamber flat pipe manufacturing method for heat exchanger e.g. exhaust gas heat exchanger, involves attaching bar to edge area of strip through shaping, and forming strip for forming flat pipe, such that profile is closed
    EP2108905A1 (en) * 2008-04-09 2009-10-14 Behr France Hambach S.A.R.L. Condenser, in particular for a motor vehicle
    WO2010097392A1 (en) * 2009-02-25 2010-09-02 Kn Interlektuell Propertys Ug Condenser
    EP2287552B1 (en) * 2009-07-09 2015-06-10 MAHLE Behr GmbH & Co. KG Heat exchanger
    EP2491328B1 (en) 2009-10-22 2016-07-27 Valeo Systèmes Thermiques Heat exchanger header
    EP3444544A1 (en) * 2017-08-17 2019-02-20 VALEO AUTOSYSTEMY Sp. Z. o.o. Heat exchanging module
    WO2019034647A1 (en) * 2017-08-17 2019-02-21 Valeo Autosystemy Sp. Z.O.O. Bracket for a receiver drier
    CN111527355A (en) * 2017-08-17 2020-08-11 法雷奥自动系统公司 Support for liquid storage dryer
    US11536500B2 (en) 2017-08-17 2022-12-27 Valeo Autosystemy Sp. Z O.O. Bracket for a receiver drier

    Also Published As

    Publication number Publication date
    DE50213792D1 (en) 2009-10-08
    EP1310748A3 (en) 2004-01-02
    EP1310748B1 (en) 2009-08-26
    ATE441073T1 (en) 2009-09-15
    US6851468B2 (en) 2005-02-08
    US20030085026A1 (en) 2003-05-08

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