EP1568959A1 - Brazed heat exchanger, especially condenser for automobiles - Google Patents

Brazed heat exchanger, especially condenser for automobiles Download PDF

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Publication number
EP1568959A1
EP1568959A1 EP04004129A EP04004129A EP1568959A1 EP 1568959 A1 EP1568959 A1 EP 1568959A1 EP 04004129 A EP04004129 A EP 04004129A EP 04004129 A EP04004129 A EP 04004129A EP 1568959 A1 EP1568959 A1 EP 1568959A1
Authority
EP
European Patent Office
Prior art keywords
flange
heat exchanger
exchanger according
manifold
connection
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
EP04004129A
Other languages
German (de)
French (fr)
Other versions
EP1568959B1 (en
Inventor
Pedro Gonzàlez Rechea
Jean-Claude Meyer
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
Mahle Behr France Hambach SAS
Original Assignee
Behr GmbH and Co KG
Behr France Hambach SARL
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 Behr GmbH and Co KG, Behr France Hambach SARL filed Critical Behr GmbH and Co KG
Priority to EP04004129.5A priority Critical patent/EP1568959B1/en
Priority to CN2005800126719A priority patent/CN1950662B/en
Priority to US10/590,487 priority patent/US7900693B2/en
Priority to PCT/EP2005/001955 priority patent/WO2005080903A1/en
Publication of EP1568959A1 publication Critical patent/EP1568959A1/en
Application granted granted Critical
Publication of EP1568959B1 publication Critical patent/EP1568959B1/en
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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • 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
    • 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
    • F28D2021/0084—Condensers

Definitions

  • the invention relates to a brazed heat exchanger, in particular a Condenser for motor vehicles with at least one manifold and a attached to the manifold flange for receiving connecting pipes.
  • a refrigerant condenser of an air conditioner known for motor vehicles wherein the capacitor consists of a Tube / rib block and laterally arranged collecting pipes consists.
  • the known capacitor also has a connection flange for connection of refrigerant pipes of a refrigerant circuit.
  • the connection flange is by means of a holding plate over rivets or screws with the Tube / rib block of the capacitor connected.
  • Between the connection flange and a manifold is a connecting pipe for the refrigerant inlet arranged.
  • the connection flange with a refrigerant outlet pipe connected to the capacitor.
  • the attached to the condenser Connecting flange thus provides the interface to the refrigerant circuit
  • the disadvantage is the attachment by riveting or screws in the tube / rib block, causing damage or Leaks can lead.
  • EP-A-0 915 308 has disclosed a condenser for an automotive air conditioning system with two separate connection flanges known on a Collector are attached.
  • a disadvantage of this separate arrangement is that each flange individually to the refrigerant inlet line and the refrigerant outlet line be connected to the refrigerant circuit got to.
  • Such refrigerant condensers consist essentially of aluminum parts, which are soldered together to form a finished heat exchanger.
  • the goal and at the same time problem in the soldering is, all parts to each other to position and fix it without any additional soldering aids or soldering devices or as few such devices in the Soldering furnace are soldered.
  • connection flange is preferably made by extrusion and has a one-piece Holder on which the collecting tube clamps around and with this forms a soldering surface.
  • connection flange is over two Connecting pipes for the refrigerant inlet and the refrigerant outlet with connected to the manifold. In this position, the capacitor gets together soldered with connecting pipes and flange. He thus has one common flange for connection to a refrigerant inlet and outlet line a refrigerant circuit.
  • connection flange by means of one or more holders attached to the manifold is, d. H. on the one hand fixable for the soldering and on the other hand during the soldering process is soldered.
  • the advantage is achieved that the Connection flange in different positions to the heat exchanger or capacitor can be arranged. Due to the variations a keeper, d. H. its arrangement at the manifold, its shape and size and number of holders can be the location of the connection flange varied and adapted to the connection conditions in the motor vehicle be with refrigerant inlet and outlet each a common Form connecting flange.
  • the flange is laterally opposite the manifold or the block, consisting of pipes and ribs, staggered.
  • the lateral arrangement is characterized Achieves that the holders have transverse to the manifold protruding holding arms, at which the connection flange is held.
  • connection flange has a or more holding approaches that advantageously leadership and Have retaining grooves.
  • the holders themselves are inserted into corresponding slots in the manifold inserted and caulked there by flags (approaches to the holders). Consequently are also the holders fixed to the headers.
  • Another fixation the connection flange is made through the connecting pipes, on the one hand stuck in corresponding openings in the manifold and on the other are inserted into connection openings in the flange.
  • connection flange is through Extrusion or extrusion can be produced - thus the manufacturing costs be lowered; however, the blank is subsequently processed, i. H. milled and bored. It is thus also possible deflections of the refrigerant within the flange to realize 90 degrees.
  • Fig. 1 shows a condenser 1 of an air conditioner, not shown, for a motor vehicle.
  • the condenser has a block 2, consisting of unspecified flat tubes and corrugated fins, with an end face 2a, wherein the flat tubes open with their ends in laterally arranged manifolds 3, 4.
  • the condenser 1 flows through the primary side of refrigerant of a refrigerant circuit, not shown, and connected via a connection flange 5 to the refrigerant circuit.
  • the connecting flange 5 is connected via a first connecting pipe 6 for the entry of the refrigerant to the upper part of the collecting tank 3 and via a second connecting pipe 7 for the exit of the refrigerant from the condenser 1 to the lower part of the collecting pipe 3.
  • the condenser 1 is in the position shown, ie installed with approximately horizontally arranged tubes or vertically arranged manifolds 3, 4 in the vehicle and fastened there via tabs 8.
  • FIG. 2 shows an enlarged detail from FIG. 1 with the connecting flange 5, which is fastened to the collecting pipe 3.
  • the connecting flange 5 is used for the refrigerant side connection of the condenser 1 with the refrigerant circuit of the motor vehicle air conditioning, not shown, and thus provides an interface.
  • the flange 5 therefore has four openings for the passage of the refrigerant, namely a first connection opening 9 for the entry of the refrigerant (off the refrigerant circuit) and a second connection opening 10 for the exit of the refrigerant (in the refrigerant circuit), further comprises a connection opening 11 for receiving the connecting pipe 6 and a connection opening 12 for receiving the connecting pipe 7.
  • the connecting pipe 6 opens into a non-illustrated inlet chamber of the manifold 3 and the connecting pipe 7 in a likewise unspecified outlet chamber of the manifold 3; the subdivision of the headers in chambers by partitions is known from the prior art.
  • the connection openings 9, 10 are closed by plugs 9a, 10a for the transport of the condenser 1 - they are removed when connecting the condenser to a counter flange, not shown, of the refrigerant circuit.
  • the fastening eyes 9b, 10b arranged adjacent to the connection openings 9, 10 serve for fastening the abovementioned counter flange, which is not shown, which is generally a standard part.
  • the connecting flange 5 also has two retaining lugs 13, 14 with guide and retaining grooves 13a, 14a. At the collecting tube 3 are two transversely to the longitudinal direction of the manifold 3 horrrekkende holder 15, 16 attached, which are received by the grooves 13 a, 14 a of the attachment lugs 13, 14. About the holder 15, 16 of the connecting flange 5 is substantially fixed relative to the manifold 3 and - after soldering - fixed, with an additional fixation and attachment is also on the two connecting pipes 6, 7 given.
  • Fig. 3 shows an exploded view of the parts to be joined before soldering, namely the manifold 3, the two holders 15, 16, the two connecting pipes 6, 7 and the connecting flange 5 with the attachment lugs 13, 14.
  • the connection flange 5 can initially be produced by extrusion, ie as a blank.
  • the two retaining lugs 13, 14 with their guide and retaining grooves 13a, 14a typical extrusion profiles, which do not extend over the entire depth of the connecting flange 5, however.
  • the extruded blank of the connecting flange 5 is therefore - in order to obtain the apparent from Fig. 3 form - additionally subjected to a cutting machining such as drilling and milling.
  • the two holders 15, 16 are of identical design and have at their end facing the manifold 3 a downwardly directed approach, a so-called flag 15b, 16b and at its opposite end in each case a holding arm 15a, 16a.
  • two slots 16, 17 are arranged at the top, in which the flags 15a, 16a of the holder 15, 16 are inserted and caulked from the inside.
  • a fixation of the two holders 15,16 is achieved with respect to the manifold 3.
  • connection flange 5 On the thus fixed holder 15, 16 of the connecting flange 5 is inserted by the retaining arms 15 a, 16 a are inserted into the guide and retaining grooves 13 a, 14 a, up to a stop on the holder.
  • the connecting pipes 6, 7 are inserted into corresponding unspecified openings of the collecting pipe 3 and at the same time into the connecting openings 11, 12.
  • solder rings 19, 20 are provided, while the holders 15, 16 are soldered on both sides to solder on the one hand to the manifold 3 and on the other hand to the connection flange 5.
  • connection flange 5 is fixed to the manifold 3, that is, the capacitor 1 connected.
  • the connecting tubes 6, 7 are soldered tight in both the manifold 3 and in the connection flange 5 and the slots 17, 18 are sealed by soldering the holder 15, 16.
  • the connection flange 5 has a front planar connection surface 21, which is aligned approximately parallel to the end surface 2a (see Fig. 1) and is connected to a counter flange, not shown, for connection to a refrigerant inlet and - outlet line.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The heat exchanger has a collecting pipe (3) and a flange (5) for the admission of connecting tubes (6, 7). The flange has a bracket (15, 16) fixed at the collecting pipe (3). The flange (5) is laterally transferred opposite the collecting pipe. The bracket fastened to the collecting pipe, is shaped to fit onto the collecting pipe. The flange has a retaining part (13, 14) with a holding and a guide groove (13a, 14a) which engages with the bracket.

Description

Die Erfindung betrifft einen gelöteten Wärmeübertrager, insbesondere einen Kondensator für Kraftfahrzeuge mit mindestens einem Sammelrohr und einem am Sammelrohr befestigten Flansch zur Aufnahme von Verbindungsrohren.The invention relates to a brazed heat exchanger, in particular a Condenser for motor vehicles with at least one manifold and a attached to the manifold flange for receiving connecting pipes.

Durch die DE-A 196 45 502 wurde ein Kältemittel-Kondensator einer Klimaanlage für Kraftfahrzeuge bekannt, wobei der Kondensator aus einem Rohr/Rippen-Block und seitlich angeordneten Sammelrohren besteht. Der bekannte Kondensator weist ferner einen Anschlussflansch zum Anschluss von Kältemittelleitungen eines Kältemittelkreislaufes auf. Der Anschlussflansch ist mittels eines Haltebleches über Nieten oder Schrauben mit dem Rohr/Rippen-Block des Kondensators verbunden. Zwischen dem Anschlussflansch und einem Sammelrohr ist ein Verbindungsrohr für den Kältemitteleintritt angeordnet. Andererseits ist der Anschlussflansch mit einem Kältemittelaustrittsrohr des Kondensators verbunden. Der am Kondensator befestigte Anschlussflansch stellt somit die Schnittstelle zum Kältemittelkreislauf des Kraftfahrzeuges dar. Nachteilig ist die Befestigung durch Nieten oder Schrauben im Rohr/Rippen-Block, welche zu Beschädigungen oder Undichtigkeiten führen können. Darüber hinaus sind zusätzliche Montageschritte für die Befestigung des Haltebleches am Rohr/Rippen-Block und des Anschlussflansches am Halteblech erforderlich.From DE-A 196 45 502, a refrigerant condenser of an air conditioner known for motor vehicles, wherein the capacitor consists of a Tube / rib block and laterally arranged collecting pipes consists. Of the known capacitor also has a connection flange for connection of refrigerant pipes of a refrigerant circuit. The connection flange is by means of a holding plate over rivets or screws with the Tube / rib block of the capacitor connected. Between the connection flange and a manifold is a connecting pipe for the refrigerant inlet arranged. On the other hand, the connection flange with a refrigerant outlet pipe connected to the capacitor. The attached to the condenser Connecting flange thus provides the interface to the refrigerant circuit The disadvantage is the attachment by riveting or screws in the tube / rib block, causing damage or Leaks can lead. In addition, additional assembly steps for fixing the retaining plate to the tube / rib block and the Connection flange required on holding plate.

Durch die EP-A 0 915 308 wurde ein Kondensator für eine Kraftfahrzeugklimaanlage mit zwei separaten Anschlussflanschen bekannt, die an einem Sammelrohr befestigt sind. Nachteilig bei dieser getrennten Anordnung ist, dass jeder Flansch einzeln an die Kältemitteleintrittsleitung und die Kältemittelaustrittsleitung des Kältemittelkreislaufes angeschlossen werden muss.EP-A-0 915 308 has disclosed a condenser for an automotive air conditioning system with two separate connection flanges known on a Collector are attached. A disadvantage of this separate arrangement is that each flange individually to the refrigerant inlet line and the refrigerant outlet line be connected to the refrigerant circuit got to.

Derartige Kältemittel-Kondensatoren bestehen im Wesentlichen aus Aluminiumteilen, die miteinander zu einem fertigen Wärmeübertrager verlötet werden. Ziel und gleichzeitig Problem bei der Verlötung ist, alle Teile so zueinander zu positionieren und zu fixieren, dass sie ohne zusätzliche Löthilfen oder Lötvorrichtungen bzw. möglichst wenige derartiger Vorrichtungen im Lötofen verlötbar sind.Such refrigerant condensers consist essentially of aluminum parts, which are soldered together to form a finished heat exchanger. The goal and at the same time problem in the soldering is, all parts to each other to position and fix it without any additional soldering aids or soldering devices or as few such devices in the Soldering furnace are soldered.

In der älteren europäischen Patentanmeldung mit der Anmeldenummer EP 03 290 190.2 ist ein Wärmeübertrager, insbesondere ein gelöteter Kältemittel-Kondensator mit mindestens einem Sammelrohr beschrieben, an welchem ein Anschlussflansch fixierbar und verlötbar ist. Der Anschlussflansch ist vorzugsweise durch Extrusion hergestellt und weist einen einstükkigen Halter auf, welcher das Sammelrohr klemmend umgreift und mit diesem eine Lötfläche bildet. Gleichzeitig ist der Anschlussflansch über zwei Verbindungsrohre für den Kältemitteleintritt und den Kältemittelaustritt mit dem Sammelrohr verbunden. In dieser Position wird der Kondensator zusammen mit Verbindungsrohren und Flansch gelötet. Er weist somit einen gemeinsamen Flansch zum Anschluss an eine Kältemitteleintritts- und austrittsleitung eines Kältemittelkreislaufes auf. Durch die einstückige Ausbildung von Halter und Flansch als Extrusionsteil sind die Anschlusspositionen beschränkt.In the earlier European patent application with the application number EP 03 290 190.2 is a heat exchanger, in particular a soldered refrigerant condenser described with at least one manifold which a connection flange can be fixed and soldered. The connection flange is preferably made by extrusion and has a one-piece Holder on which the collecting tube clamps around and with this forms a soldering surface. At the same time, the connection flange is over two Connecting pipes for the refrigerant inlet and the refrigerant outlet with connected to the manifold. In this position, the capacitor gets together soldered with connecting pipes and flange. He thus has one common flange for connection to a refrigerant inlet and outlet line a refrigerant circuit. By the one-piece training of holder and flange as extrusion part are the connection positions limited.

Ausgehend von dieser älteren europäischen Patentanmeldung, ist es Aufgabe der vorliegenden Erfindung, einen derartigen Wärmeübertrager hinsichtlich der Flanschanordnung flexibler zu gestalten, damit der Wärmeübertrager auch bei unterschiedlichen Anschlusspositionen einfach und sicher anschließbar ist.Based on this older European patent application, it is the task the present invention, such a heat exchanger in terms the flange assembly to make flexible, so that the heat exchanger easy and safe connection even with different connection positions is.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst, wobei der Flansch mittels eines oder mehrerer Halter am Sammelrohr befestigt ist, d. h. einerseits für den Lötvorgang fixierbar und andererseits während des Lötvorganges verlötbar ist. Damit wird der Vorteil erreicht, dass der Anschlussflansch in unterschiedlichen Positionen zum Wärmeübertrager bzw. Kondensator angeordnet werden kann. Durch die Variationsmöglichkeiten eines Halters, d. h. seiner Anordnung am Sammelrohr, seiner Form und Größe und der Anzahl der Halter kann die Lage des Anschlussflansches vielfältig verändert und den Anschlussbedingungen im Kraftfahrzeug angepasst werden, wobei Kältemitteleintritt und -austritt jeweils einen gemeinsamen Anschlussflansch bilden.This object is solved by the features of claim 1, wherein the flange by means of one or more holders attached to the manifold is, d. H. on the one hand fixable for the soldering and on the other hand during the soldering process is soldered. Thus, the advantage is achieved that the Connection flange in different positions to the heat exchanger or capacitor can be arranged. Due to the variations a keeper, d. H. its arrangement at the manifold, its shape and size and number of holders can be the location of the connection flange varied and adapted to the connection conditions in the motor vehicle be with refrigerant inlet and outlet each a common Form connecting flange.

In vorteilhafter Ausgestaltung der Erfindung ist der Flansch seitlich gegenüber dem Sammelrohr bzw. dem Block, bestehend aus Rohren und Rippen, versetzt angeordnet. Dadurch kann beim Einbau des Kondensators Einbauhöhe bzw. -breite gespart werden. Die seitliche Anordnung wird dadurch erreicht, dass die Halter quer zum Sammelrohr abragende Haltearme aufweisen, an welchen der Anschlussflansch gehalten ist.In an advantageous embodiment of the invention, the flange is laterally opposite the manifold or the block, consisting of pipes and ribs, staggered. As a result, when installing the capacitor installation height or width can be saved. The lateral arrangement is characterized Achieves that the holders have transverse to the manifold protruding holding arms, at which the connection flange is held.

In vorteilhafter Ausgestaltung der Erfindung weist der Anschlussflansch einen oder mehrere Halteansätze auf, die vorteilhafterweise Führungs- und Haltenuten aufweisen. Dadurch ist es möglich, den Anschlussflansch auf den oder die Halter bzw. Haltearme aufzustecken, zu positionieren und zu fixieren. Die Halter selbst werden in entsprechende Schlitze im Sammelrohr gesteckt und dort mittels Fahnen (Ansätze an den Haltern) verstemmt. Somit sind auch die Halter gegenüber den Sammelrohren fixiert. Eine weitere Fixierung des Anschlussflansches erfolgt durch die Verbindungsrohre, die einerseits in entsprechenden Öffnungen in dem Sammelrohr stecken und andererseits in Verbindungsöffnungen im Flansch eingesetzt sind.In an advantageous embodiment of the invention, the connection flange has a or more holding approaches that advantageously leadership and Have retaining grooves. This makes it possible to connect the connection flange set up, position and secure the holder (s) fix. The holders themselves are inserted into corresponding slots in the manifold inserted and caulked there by flags (approaches to the holders). Consequently are also the holders fixed to the headers. Another fixation the connection flange is made through the connecting pipes, on the one hand stuck in corresponding openings in the manifold and on the other are inserted into connection openings in the flange.

In vorteilhafter Ausgestaltung der Erfindung ist der Anschlussflansch durch Extrusion bzw. Strangpressen herstellbar - damit können die Herstellkosten gesenkt werden; das Rohteil wird jedoch anschließend bearbeitet, d. h. gefräst und gebohrt. Es ist somit auch möglich, Umlenkungen des Kältemittels innerhalb des Flansches um 90 Grad zu realisieren. Der Flansch in seiner Rohform kann jedoch auch durch Schmieden oder Gießen hergestellt werden.In an advantageous embodiment of the invention, the connection flange is through Extrusion or extrusion can be produced - thus the manufacturing costs be lowered; however, the blank is subsequently processed, i. H. milled and bored. It is thus also possible deflections of the refrigerant within the flange to realize 90 degrees. The flange in his However, raw form can also be produced by forging or casting.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben. Es zeigen

Fig. 1
einen Kondensator für eine Klimaanlage eines Kraftfahrzeuges mit Anschlussflansch,
Fig. 2
den Anschlussflansch montiert in vergrößerter Darstellung und
Fig. 3
den Anschlussflansch mit Haltern und Sammelrohr in Explosiv-Darstellung.
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show it
Fig. 1
a condenser for an air conditioning system of a motor vehicle with connection flange,
Fig. 2
the connection flange mounted in an enlarged view and
Fig. 3
the connecting flange with holders and manifold in explosive representation.

Fig. 1 zeigt einen Kondensator 1 einer nicht dargestellten Klimaanlage für ein Kraftfahrzeug. Der Kondensator weist einen Block 2, bestehend aus nicht näher bezeichneten Flachrohren und Wellrippen, mit einer Stirnfläche 2a auf, wobei die Flachrohre mit ihren Enden in seitlich angeordnete Sammelrohre 3, 4 münden. Der Kondensator 1 wird primärseitig von Kältemittel eines nicht dargestellten Kältemittelkreislaufes durchströmt und über einen Anschlussflansch 5 an den Kältemittelkreislauf angeschlossen. Der Anschlussflansch 5 ist über ein erstes Verbindungsrohr 6 für den Eintritt des Kältemittels mit dem oberen Teil des Sammelkastens 3 verbunden und über ein zweites Verbindungsrohr 7 für den Austritt des Kältemittels aus dem Kondensator 1 mit dem unteren Teil des Sammelrohres 3. Der Kondensator 1 ist in der dargestellten Lage, d. h. mit etwa horizontal angeordneten Rohren bzw. senkrecht angeordneten Sammelrohren 3, 4 im Fahrzeug eingebaut und dort über Laschen 8 befestigt. Fig. 1 shows a condenser 1 of an air conditioner, not shown, for a motor vehicle. The condenser has a block 2, consisting of unspecified flat tubes and corrugated fins, with an end face 2a, wherein the flat tubes open with their ends in laterally arranged manifolds 3, 4. The condenser 1 flows through the primary side of refrigerant of a refrigerant circuit, not shown, and connected via a connection flange 5 to the refrigerant circuit. The connecting flange 5 is connected via a first connecting pipe 6 for the entry of the refrigerant to the upper part of the collecting tank 3 and via a second connecting pipe 7 for the exit of the refrigerant from the condenser 1 to the lower part of the collecting pipe 3. The condenser 1 is in the position shown, ie installed with approximately horizontally arranged tubes or vertically arranged manifolds 3, 4 in the vehicle and fastened there via tabs 8.

Fig. 2 zeigt einen vergrößerten Ausschnitt aus Fig. 1 mit dem Anschlussflansch 5, welcher am Sammelrohr 3 befestigt ist. Der Anschlussflansch 5 dient der kältemittelseitigen Verbindung des Kondensators 1 mit dem nicht dargestellten Kältemittelkreislauf der Kraftfahrzeugklimaanlage und stellt somit eine Schnittstelle dar. Der Flansch 5 weist daher vier Öffnungen für den Durchtritt des Kältemittels auf, nämlich eine erste Anschlussöffnung 9 für den Eintritt des Kältemittels (aus dem Kältemittelkreislauf) und eine zweite Anschlussöffnung 10 für den Austritt des Kältemittels (in den Kältemittelkreislauf), ferner eine Verbindungsöffnung 11 zur Aufnahme des Verbindungsrohres 6 und eine Verbindungsöffnung 12 zur Aufnahme des Verbindungsrohres 7. Das Verbindungsrohr 6 mündet in eine nicht näher dargestellte Eintrittskammer des Sammelrohres 3 und das Verbindungsrohr 7 in eine ebenfalls nicht näher bezeichnete Austrittskammer des Sammelrohres 3; die Unterteilung der Sammelrohre in Kammern durch Trennwände ist aus dem Stand der Technik bekannt. Die Anschlussöffnungen 9, 10 sind durch Stopfen 9a, 10a für den Transport des Kondensators 1 verschlossen - sie werden beim Anschluss des Kondensators an einen nicht dargestellten Gegenflansch des Kältemittelkreislaufes entfernt. Die benachbart zu den Anschlussöffnungen 9, 10 angeordneten Befestigungsaugen 9b, 10b dienen der Befestigung des erwähnten nicht dargestellten Gegenflansches, welcher in der Regel ein Normteil ist. Der Anschlussflansch 5 weist ferner zwei Halteansätze 13, 14 mit Führungs- und Haltenuten 13a, 14a auf. Am Sammelrohr 3 sind zwei sich quer zur Längsrichtung des Sammelrohres 3 erstrekkende Halter 15, 16 befestigt, welche von den Nuten 13a, 14a der Befestigungsansätze 13, 14 aufgenommen werden. Über die Halter 15, 16 ist der Anschlussflansch 5 im Wesentlichen gegenüber dem Sammelrohr 3 fixiert und - nach dem Löten - befestigt, wobei eine zusätzliche Fixierung und Befestigung auch über die beiden Verbindungsrohre 6, 7 gegeben ist. FIG. 2 shows an enlarged detail from FIG. 1 with the connecting flange 5, which is fastened to the collecting pipe 3. The connecting flange 5 is used for the refrigerant side connection of the condenser 1 with the refrigerant circuit of the motor vehicle air conditioning, not shown, and thus provides an interface. The flange 5 therefore has four openings for the passage of the refrigerant, namely a first connection opening 9 for the entry of the refrigerant (off the refrigerant circuit) and a second connection opening 10 for the exit of the refrigerant (in the refrigerant circuit), further comprises a connection opening 11 for receiving the connecting pipe 6 and a connection opening 12 for receiving the connecting pipe 7. The connecting pipe 6 opens into a non-illustrated inlet chamber of the manifold 3 and the connecting pipe 7 in a likewise unspecified outlet chamber of the manifold 3; the subdivision of the headers in chambers by partitions is known from the prior art. The connection openings 9, 10 are closed by plugs 9a, 10a for the transport of the condenser 1 - they are removed when connecting the condenser to a counter flange, not shown, of the refrigerant circuit. The fastening eyes 9b, 10b arranged adjacent to the connection openings 9, 10 serve for fastening the abovementioned counter flange, which is not shown, which is generally a standard part. The connecting flange 5 also has two retaining lugs 13, 14 with guide and retaining grooves 13a, 14a. At the collecting tube 3 are two transversely to the longitudinal direction of the manifold 3 erstrekkende holder 15, 16 attached, which are received by the grooves 13 a, 14 a of the attachment lugs 13, 14. About the holder 15, 16 of the connecting flange 5 is substantially fixed relative to the manifold 3 and - after soldering - fixed, with an additional fixation and attachment is also on the two connecting pipes 6, 7 given.

Fig. 3 zeigt eine Explosivdarstellung der vor dem Löten miteinander zu verbindenden Teile, nämlich das Sammelrohr 3, die beiden Halter 15, 16, die beiden Verbindungsrohre 6, 7 und den Anschlussflansch 5 mit den Befestigungsansätzen 13, 14. Im Übrigen sind dieselben Bezugsziffern wie in den Figuren 1 und 2 verwendet. Aus der Darstellung in Fig. 3 (in Verbindung mit der Darstellung in Fig. 2) ist erkennbar, dass der Anschlussflansch 5 zunächst, d. h. als Rohteil durch Extrusion herstellbar ist. So bilden beispielsweise die beiden Halteansätze 13, 14 mit ihren Führungs- und Haltenuten 13a, 14a typische Extrusionsprofile, die sich allerdings nicht über die gesamte Tiefe des Anschlussflansches 5 erstrecken. Das extrudierte Rohteil des Anschlussflansches 5 wird daher - um die aus Fig. 3 ersichtliche Form zu erhalten - zusätzlich einer spangebenden Bearbeitung wie Bohren und Fräsen unterzogen. Die beiden Halter 15, 16 sind identisch ausgebildet und weisen an ihrem dem Sammelrohr 3 zugewandten Ende einen nach unten gerichteten Ansatz, eine so genannte Fahne 15b, 16b und an ihrem entgegengesetzten Ende jeweils einen Haltearm 15a, 16a auf. Im Sammelrohr 3 sind an deren Oberseite zwei Schlitze 16, 17 angeordnet, in welche die Fahnen 15a, 16a der Halter 15, 16 gesteckt und von innen verstemmt werden. Damit wird eine Fixierung der beiden Halter 15,16 gegenüber dem Sammelrohr 3 erreicht. Auf die so fixierten Halter 15, 16 wird der Anschlussflansch 5 gesteckt, indem die Haltearme 15a, 16a in die Führungs- und Haltenuten 13a, 14a eingeführt werden, und zwar bis zu einem Anschlag am Halter. Nach diesem Schritt werden die Verbindungsrohre 6, 7 in entsprechende nicht näher bezeichnete Öffnungen des Sammelrohres 3 und gleichzeitig in die Verbindungsöffnungen 11, 12 eingesetzt. Für die Verlötung der Verbindungsrohre 6, 7 in den Öffnungen 11, 12 sind Lotringe 19, 20 vorgesehen, während die Halter 15, 16 beidseitig lotplattiert sind, um einerseits mit dem Sammelrohr 3 und andererseits mit dem Anschlussflansch 5 zu verlöten. Nachdem alle Teile in der zuvor beschriebenen Weise gefügt, positioniert und fixiert worden sind, wird der gesamte Kondensator in einen nicht dargestellten Lötofen verbracht und dort in einem Arbeitsgang gelötet. Danach ist der Anschlussflansch 5 fest mit dem Sammelrohr 3, d. h. dem Kondensator 1 verbunden. Die Verbindungsrohre 6, 7 sind sowohl in das Sammelrohr 3 als auch in den Anschlussflansch 5 dicht eingelötet und die Schlitze 17, 18 sind durch Einlöten der Halter 15, 16 dicht verschlossen. Der Anschlussflansch 5 weist eine vordere ebene Anschlussfläche 21 auf, welche etwa parallel zur Stirnfläche 2a (vgl. Fig. 1) ausgerichtet ist und mit einem nicht dargestellten Gegenflansch zum Anschluss an eine Kältemitteleintritts- und - austrittsleitung verbunden wird. Fig. 3 shows an exploded view of the parts to be joined before soldering, namely the manifold 3, the two holders 15, 16, the two connecting pipes 6, 7 and the connecting flange 5 with the attachment lugs 13, 14. Incidentally, the same reference numerals used in Figures 1 and 2. From the illustration in FIG. 3 (in conjunction with the illustration in FIG. 2), it can be seen that the connection flange 5 can initially be produced by extrusion, ie as a blank. Thus, for example, the two retaining lugs 13, 14 with their guide and retaining grooves 13a, 14a typical extrusion profiles, which do not extend over the entire depth of the connecting flange 5, however. The extruded blank of the connecting flange 5 is therefore - in order to obtain the apparent from Fig. 3 form - additionally subjected to a cutting machining such as drilling and milling. The two holders 15, 16 are of identical design and have at their end facing the manifold 3 a downwardly directed approach, a so-called flag 15b, 16b and at its opposite end in each case a holding arm 15a, 16a. In the manifold 3, two slots 16, 17 are arranged at the top, in which the flags 15a, 16a of the holder 15, 16 are inserted and caulked from the inside. Thus, a fixation of the two holders 15,16 is achieved with respect to the manifold 3. On the thus fixed holder 15, 16 of the connecting flange 5 is inserted by the retaining arms 15 a, 16 a are inserted into the guide and retaining grooves 13 a, 14 a, up to a stop on the holder. After this step, the connecting pipes 6, 7 are inserted into corresponding unspecified openings of the collecting pipe 3 and at the same time into the connecting openings 11, 12. For the soldering of the connecting pipes 6, 7 in the openings 11, 12 solder rings 19, 20 are provided, while the holders 15, 16 are soldered on both sides to solder on the one hand to the manifold 3 and on the other hand to the connection flange 5. After all parts have been joined, positioned and fixed in the manner described above, the entire capacitor is placed in a soldering oven, not shown, and soldered there in one operation. Thereafter, the connection flange 5 is fixed to the manifold 3, that is, the capacitor 1 connected. The connecting tubes 6, 7 are soldered tight in both the manifold 3 and in the connection flange 5 and the slots 17, 18 are sealed by soldering the holder 15, 16. The connection flange 5 has a front planar connection surface 21, which is aligned approximately parallel to the end surface 2a (see Fig. 1) and is connected to a counter flange, not shown, for connection to a refrigerant inlet and - outlet line.

Claims (11)

Gelöteter Wärmeübertrager, insbesondere Kondensator für Kraftfahrzeuge mit mindestens einem Sammelrohr (3) und einem an dem Sammelrohr (3) befestigten Flansch (5) zur Aufnahme von Verbindungsrohren (6, 7), wobei der Flansch (5) mit mindestens einem Halter (15, 16) am Sammelrohr (3) fixierbar und verlötbar ist.Soldered heat exchanger, in particular condenser for motor vehicles with at least one collecting tube (3) and one at the Collecting tube (3) fixed flange (5) for receiving connecting pipes (6, 7), wherein the flange (5) with at least one holder (15, 16) on the manifold (3) can be fixed and soldered. Wärmeübertrager nach Anspruch 1, dadurch gekennzeichnet, dass der Flansch (5) gegenüber dem Sammelrohr (3) seitlich versetzt angeordnet ist.Heat exchanger according to claim 1, characterized in that the flange (5) relative to the collecting tube (3) is arranged laterally offset. Wärmeübertrager nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der mindestens eine Halter (15, 16) am Sammelrohr (3) befestigt, insbesondere verstemmt ist und einen seitlich abragenden Haltearm (15a, 16a) aufweist.Heat exchanger according to claim 1 or 2, characterized in that the at least one holder (15, 16) attached to the manifold (3), in particular caulked and a laterally projecting support arm (15a, 16a). Wärmeübertrager nach Anspruch 3, dadurch gekennzeichnet, dass der Flansch (5) mindestens einen Halteansatz (13, 14) mit einer Halte- und Führungsnut (13a, 14a) aufweist, welche den Haltearm (15, 16) aufnimmt.Heat exchanger according to claim 3, characterized in that the flange (5) has at least one holding lug (13, 14) with a holding and guiding groove (13a, 14a) which receives the holding arm (15, 16). Wärmeübertrager nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Verbindungsrohre (6, 7) einerseits in das Sammelrohr (3) und andererseits in den Flansch (5) einsteckbar und verlötbar sind.Heat exchanger according to one of claims 1 to 4, characterized in that the connecting pipes (6, 7) on the one hand in the collecting tube (3) and on the other hand in the flange (5) can be inserted and soldered. Wärmeübertrager nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Flansch (5) zwei Halteansätze (13, 14) aufweist und über zwei parallel zueinander angeordnete Halter (15, 16 mit dem Sammelrohr (3) verbunden ist. Heat exchanger according to one of claims 1 to 5, characterized in that the flange (5) has two retaining lugs (13, 14) and is connected via two mutually parallel holders (15, 16 with the manifold (3). Wärmeübertrager nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Flansch (5) eine Anschlussfläche (21) und der Wärmeübertrager eine Stirnfläche (2a) aufweisen und dass die Anschlussfläche (21) und die Stirnfläche (2a) etwa parallel zueinander angeordnet sind.Heat exchanger according to one of claims 1 to 6, characterized in that the flange (5) has a connection surface (21) and the heat exchanger an end face (2a) and that the connection surface (21) and the end face (2a) are arranged approximately parallel to each other , Wärmeübertrager nach Anspruch 7, dadurch gekennzeichnet, dass der Flansch (5) zwei Anschlussöffnungen (9, 10) aufweist, die in der Anschlussfläche (21) nebeneinander angeordnet sind.Heat exchanger according to claim 7, characterized in that the flange (5) has two connection openings (9, 10), which are arranged side by side in the connection surface (21). Wärmeübertrager nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Flansch (5) als Rohteil durch Extrusion oder Strangpressen herstellbar ist.Heat exchanger according to one of claims 1 to 8, characterized in that the flange (5) can be produced as a blank by extrusion or extrusion. Wärmeübertrager nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Flansch (5) als Rohteil durch Gießen oder Gesenkschmieden (Pressen) herstellbar ist.Heat exchanger according to one of claims 1 to 8, characterized in that the flange (5) as a blank by casting or drop forging (pressing) can be produced. Wärmeübertrager nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Wärmeübertrager, insbesondere Kondensator (1) einen aus Rohren und Rippen bestehenden Block (2) aufweist und dass der Wärmeübertrager (1) komplett mit Sammelrohren (3, 4), Verbindungsrohren (6, 7), Haltern (15, 16) und Flansch (5) lötbar ist.Heat exchanger according to one of claims 1 to 10, characterized in that the heat exchanger, in particular condenser (1) comprises a block and ribs consisting of blocks (2) and that the heat exchanger (1) complete with manifolds (3, 4), connecting pipes ( 6, 7), holders (15, 16) and flange (5) is solderable.
EP04004129.5A 2004-02-24 2004-02-24 Brazed heat exchanger, especially condenser for automobiles Expired - Lifetime EP1568959B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04004129.5A EP1568959B1 (en) 2004-02-24 2004-02-24 Brazed heat exchanger, especially condenser for automobiles
CN2005800126719A CN1950662B (en) 2004-02-24 2005-02-24 Brazed heat exchanger, especially condenser for automobiles
US10/590,487 US7900693B2 (en) 2004-02-24 2005-02-24 Soldered heat exchanger, in particular a condenser for motor vehicles
PCT/EP2005/001955 WO2005080903A1 (en) 2004-02-24 2005-02-24 Soldered heat exchanger, in particular capacitor for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04004129.5A EP1568959B1 (en) 2004-02-24 2004-02-24 Brazed heat exchanger, especially condenser for automobiles

Publications (2)

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EP1568959A1 true EP1568959A1 (en) 2005-08-31
EP1568959B1 EP1568959B1 (en) 2015-10-21

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EP04004129.5A Expired - Lifetime EP1568959B1 (en) 2004-02-24 2004-02-24 Brazed heat exchanger, especially condenser for automobiles

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US (1) US7900693B2 (en)
EP (1) EP1568959B1 (en)
CN (1) CN1950662B (en)
WO (1) WO2005080903A1 (en)

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DE102006051864B4 (en) 2006-10-31 2024-03-14 Mahle International Gmbh Heat exchanger, especially for a motor vehicle
FR2978237B1 (en) * 2011-07-21 2013-12-20 Valeo Systemes Thermiques CONNECTING FLANGE, COLLECTOR BOX AND THERMAL EXCHANGER
WO2016115558A2 (en) * 2015-01-16 2016-07-21 Bruno Doiron Compositions and methods for creating pancreatic cancer animal model
CN110195946A (en) * 2019-05-27 2019-09-03 合肥铭尊精密科技有限公司 A kind of connection type of automotive air-conditioning condenser collector tube, pressing plate and pipeline
CN110195944A (en) * 2019-05-27 2019-09-03 合肥铭尊精密科技有限公司 A kind of automotive air-conditioning condenser collector tube and bracket, pressing plate buckle connecting structure
DE102022206675A1 (en) 2022-06-30 2024-01-04 Mahle International Gmbh Heat exchanger and motor vehicle

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EP1158261A2 (en) * 2000-05-22 2001-11-28 Showa Denko Kabushiki Kaisha Piping structure for heat exchanger, piping joint block for heat, exchanger and heat exchanger with said joint block
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US20030173069A1 (en) * 2002-03-12 2003-09-18 Minoru Nitta Clasp having a flange to couple a heat exchanger to a device in a cooling system

Also Published As

Publication number Publication date
US20080029259A1 (en) 2008-02-07
EP1568959B1 (en) 2015-10-21
CN1950662B (en) 2010-09-29
US7900693B2 (en) 2011-03-08
WO2005080903A1 (en) 2005-09-01
CN1950662A (en) 2007-04-18

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