EP1310760B1 - Cooling medium condensor - Google Patents

Cooling medium condensor Download PDF

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Publication number
EP1310760B1
EP1310760B1 EP02023854A EP02023854A EP1310760B1 EP 1310760 B1 EP1310760 B1 EP 1310760B1 EP 02023854 A EP02023854 A EP 02023854A EP 02023854 A EP02023854 A EP 02023854A EP 1310760 B1 EP1310760 B1 EP 1310760B1
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EP
European Patent Office
Prior art keywords
tube
cooling medium
partition wall
header
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP02023854A
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German (de)
French (fr)
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EP1310760A1 (en
Inventor
Olaf Neumann
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Mahle Behr GmbH and Co KG
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Behr GmbH and Co KG
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Publication date
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Publication of EP1310760A1 publication Critical patent/EP1310760A1/en
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Classifications

    • 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
    • F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • 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
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • 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
    • 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
    • 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
    • F28F2009/0285—Other particular headers or end plates
    • F28F2009/029—Other particular headers or end plates with increasing or decreasing cross-section, e.g. having conical shape

Definitions

  • the invention relates to a refrigerant condenser for motor vehicle - air conditioning systems according to the preamble of claim 1.
  • a capacitor was characterized by the EP-B 0 668 986 the applicant known.
  • This known refrigerant condenser has a tube fin block with horizontally extending flat tubes, between which are arranged by the ambient air acted upon corrugated fins, which are soldered to the flat tubes.
  • On both sides of this tube rib block vertically arranged manifolds are provided, in which open the ends of the flat tubes, they are tightly soldered in passages of the headers.
  • the headers are divided by soldered dividing walls into individual chambers for deflecting the refrigerant.
  • a collector for receiving excess refrigerant and for receiving a filter and / or dryer is provided, wherein the collector is integrated with the manifold to a kind of double tube.
  • the cross section of the collector is greater than that of the manifold, the length of the collector corresponds to that of the manifold.
  • Capacitors have been known in which parts of a collecting tube are connected to a collector to form a structural unit of larger cross-section.
  • a disadvantage of these known types is that they are associated on the one hand with relatively high production costs and that the collecting container is formed partially larger than it is necessary for its function.
  • Collector and collector are thus formed as a single tube, which is inexpensive as a semi-finished product available.
  • z. B circular, square or rectangular obliquely to the longitudinal axis of the tube extending planar partition is used and soldered circumferentially.
  • the partition can be made as a cheap stamped part, advantageously at the two ends of the partition on the one hand, a lid for the closure of the tube and on the other hand, a deflection wall are connected. After punching the partition lid and baffle are bent and inserted into the tube, which is then soldered together with the other parts of the capacitor in the oven. This construction reduces manufacturing costs and weight.
  • the partition may include two pipe groups of the Kälteschanströmseite together with an extending baffle her, so that the partition wall forms a deflection chamber within the tube.
  • the remaining space thus acts as a collector and can accommodate a filter and / or dryer.
  • the dryer material may be contained in a suitable, designed as a sieve container, which is soldered simultaneously with the partition wall in the pipe, or can also be introduced subsequently and is then welded.
  • Fig. 1 shows a refrigerant condenser 1 with a manifold 2 and a collecting / collecting pipe 3, between which a not-shown, known per se pipe fin block 4 is arranged.
  • the left header 2 has a refrigerant inlet 5 and a refrigerant outlet 6 and two partitions 7 and 8.
  • the collecting / collecting tube 3 has over the collecting tube 2 has a larger cross section, which in particular from Fig. 2 becomes recognizable.
  • the tube 3 has a longitudinal axis 3.1 and a circular cross section 3.2. In the pipe cross-section 3.2 a just trained, obliquely to the pipe axis 3.1 extending partition 9 is used, which has at its lower end an approximately obtuse angled deflecting 9.1.
  • a cover 9.2 is connected to the partition wall 9, which is angled approximately at an acute angle to the plane of the partition wall 9 and thus approximately at right angles to the pipe longitudinal axis 3.1.
  • the entire partition wall 9 with the deflection wall 9.1 and the cover 9.2 is soldered to the inner wall 3.3 of the tube 3.
  • the partition wall 9 can be used in the described obliquely arranged position gap-free in the inner cross-section of the pipe 3 3.2 and tightly soldered there, their outline is designed accordingly, ie it results as oblique to the axis 3.1 extending cylinder section, ie the contours of the flat partition 9, whose plane is perpendicular to the plane of the drawing, is part of an ellipse.
  • a deflection chamber 10 and a collecting space 11 is formed.
  • a filter 12 is arranged with dryer 13, which are known per se.
  • the already mentioned tube fin block 4 is preferably made of flat tubes not shown (extruded multi-chamber tubes) and arranged between them corrugated fins. All parts of the capacitor made of an aluminum alloy are brazed in a brazing furnace. Also, the dryer and / or filter 12/13 can be used before the soldering in the tube 3 and soldered to it - this is the dryer granules to include in a solderable metal cage.
  • the function of the refrigerant condenser 1 or the refrigerant flow is as follows: the refrigerant enters the condenser 1 via the refrigerant inlet 5 and first flows through a first tube group 4.1, which results from the arrangement of the dividing wall 7. In the direction of the arrow F1, the refrigerant flows to the other side of the refrigerant condenser and then enters the deflection chamber 10, which is formed by the partition wall 9 and the baffle 9.1. Here, the refrigerant is deflected and then flows through a second pipe group 4.2 in the direction of arrow F2.
  • this refrigerant flow is deflected due to the further partition wall 8, flows through the condenser to the right in a third pipe group 4.3 in the direction of the arrow F3 and enters the collector chamber 11 there.
  • the refrigerant comes in contact with the dryer 13 and is dehydrated.
  • the refrigerant After flowing through the filter 12, the refrigerant, which is now exclusively in the liquid phase, enters the last tube group 4.4 and flows in the direction of arrow F4 to the refrigerant outlet 6.
  • the collector chamber 11 separates the gaseous from the liquid phase, so that in the upper Area 11.2 mainly gaseous refrigerant is located.
  • Fig. 3 shows the partition 9 as a stamped sheet metal part, ie the areas 9, 9.1 and 9.2 are still in a plane.
  • the actual partition wall 9 has on its outer sides (outline) on two elliptical elbows 9.4 and 9.5, the exact contour of which results from an oblique section through the tube cylinder 3 with the circular cross-section 3.2.
  • On these two elliptical contours 9.4 and 9.5 are on the one hand a circular cross-section 9.2 on a narrow connecting web 9.6 attached and on the other hand, an approximately semicircular lug 9.1, which forms the baffle.
  • a tongue-shaped projection 9.3 punched with which engages in a manner not shown in an opening in the tube 3 and is soldered to it.
  • this sheet metal part 9, 9.1, 9.2 is punched out of a flat sheet metal blank, the parts 9.2 and 9.1 are angled in the manner described above and then inserted into the tube 3. All parts then lie against the inner wall 3.2 of the tube 3 with a relatively small gap and can thus be soldered tightly.

Abstract

Refrigerant condenser (1) for a motor vehicle air-conditioning system comprises a tubular ribbed block (4), collecting tubes receiving the ends of the tubes (4.1-4.4), and an integrated collector (3). At least one collecting tube (2) has at least one separating wall (7, 8) for deviating the refrigerant flowing through the tubes, and a refrigerant inlet (5) and/or a refrigerant outlet (6). The other collecting tube and the collector consist of one tube which is divided by a separating wall (9) running at an angle to the longitudinal axis (3.1) of the tube into a collecting tube section (10) and a collector chamber (11). <??>Preferred Features: The separating wall is formed in one piece with a cover (9.2) for sealing the tube and with a deviating wall (9.1).

Description

Die Erfindung bezieht sich auf einen Kältemittelkondensator für Kraftfahrzeug - Klimaanlagen nach dem Oberbegriff des Patentanspruches 1. Ein solcher Kondensator wurde durch die EP-B 0 668 986 der Anmelderin bekannt.The invention relates to a refrigerant condenser for motor vehicle - air conditioning systems according to the preamble of claim 1. Such a capacitor was characterized by the EP-B 0 668 986 the applicant known.

Dieser bekannte Kältemittelkondensator weist einen Rohrrippenblock mit horizontal verlaufenden Flachrohren auf, zwischen denen von der Umgebungsluft beaufschlagte Wellrippen angeordnet sind, die mit den Flachrohren verlötet sind. Beiderseits dieses Rohrrippenblockes sind senkrecht angeordnete Sammelrohre vorgesehen, in welche die Enden der Flachrohre münden, sie sind in Durchzügen der Sammelrohre dicht verlötet. Die Sammelrohre sind durch eingelötete Trennwände in einzelne Kammern zur Umlenkung des Kältemittels unterteilt. Somit wird der gesamte Kondensator, beginnend am Kältemitteleinlaß und endend am Kältemittelauslaß, mehrflutig durchströmt. Parallel zu einem Sammelrohr ist ein Sammler zur Aufnahme von überschüssigem Kältemittel sowie zur Aufnahme eines Filters und/oder Trockners vorgesehen, wobei der Sammler mit dem Sammelrohr zu einer Art Doppelrohr integriert ist. Dabei ist der Querschnitt des Sammlers größer als der des Sammelrohres, die Länge des Sammlers entspricht der des Sammelrohres.This known refrigerant condenser has a tube fin block with horizontally extending flat tubes, between which are arranged by the ambient air acted upon corrugated fins, which are soldered to the flat tubes. On both sides of this tube rib block vertically arranged manifolds are provided, in which open the ends of the flat tubes, they are tightly soldered in passages of the headers. The headers are divided by soldered dividing walls into individual chambers for deflecting the refrigerant. Thus, the entire condenser, starting at the refrigerant inlet and ending at the refrigerant outlet, flows through several floods. Parallel to a manifold, a collector for receiving excess refrigerant and for receiving a filter and / or dryer is provided, wherein the collector is integrated with the manifold to a kind of double tube. The cross section of the collector is greater than that of the manifold, the length of the collector corresponds to that of the manifold.

Durch die FR-A 2 758 877 oder FR-A 2 758 876 wurden Kondensatoren bekannt, bei welchen Teile eines Sammelrohres mit einem Sammler zu einer Baueinheit größeren Querschnittes verbunden sind. Nachteilig bei diesen bekannten Bauarten ist, daß sie einerseits mit relativ hohen Herstellkosten verbunden sind und daß der Sammelbehälter teilweise größer ausgebildet ist, als es für seine Funktion erforderlich ist.By the FR-A 2 758 877 or FR-A 2 758 876 Capacitors have been known in which parts of a collecting tube are connected to a collector to form a structural unit of larger cross-section. A disadvantage of these known types is that they are associated on the one hand with relatively high production costs and that the collecting container is formed partially larger than it is necessary for its function.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Kältemittelkondensator der eingangs genannten Art dahingehend zu verbessern, daß seine Herstellkosten und auch sein Gewicht herabgesetzt werden, ohne daß die Funktion des Kondensators einschließlich des Sammlers beeinträchtigt wird.It is therefore an object of the present invention to improve a refrigerant condenser of the type mentioned in that its manufacturing costs and also its weight are reduced, without the function of the capacitor including the collector is impaired.

Diese Aufgabe wird durch die Merkmale des Patentanspruches 1 gelöst. Sammelrohr und Sammler werden somit als ein einziges Rohr ausgebildet, welches preisgünstig als Halbzeug zur Verfügung steht. In einem solchen Rohrquerschnitt, z. B. kreisförmig, quadratisch oder rechteckig wird eine schräg zur Längsachse des Rohres verlaufende ebene Trennwand eingesetzt und umfangsseitig verlötet. Die Trennwand kann als billiges Stanzteil hergestellt werden, wobei vorteilhafterweise an den beiden Enden der Trennwand einerseits ein Deckel für den Verschluß des Rohres und andererseits eine Umlenkwand angeschlossen sind. Nach dem Stanzen der Trennwand werden Deckel und Umlenkwand zurechtgebogen und in das Rohr eingesetzt, welches anschließend zusammen mit den übrigen Teilen des Kondensators im Ofen verlötet wird. Durch diese Bauweise werden Herstellkosten und Gewicht reduziert.This object is solved by the features of claim 1. Collector and collector are thus formed as a single tube, which is inexpensive as a semi-finished product available. In such a pipe cross section, z. B. circular, square or rectangular obliquely to the longitudinal axis of the tube extending planar partition is used and soldered circumferentially. The partition can be made as a cheap stamped part, advantageously at the two ends of the partition on the one hand, a lid for the closure of the tube and on the other hand, a deflection wall are connected. After punching the partition lid and baffle are bent and inserted into the tube, which is then soldered together with the other parts of the capacitor in the oven. This construction reduces manufacturing costs and weight.

Bei einer vorteilhaften Ausbildung der Erfindung kann die Trennwand zusammen mit einer sie verlängernden Umlenkwand zwei Rohrgruppen der Kältemittelanströmseite umfassen, so daß die Trennwand eine Umlenkkammer innerhalb des Rohres bildet. Der übrige Raum fungiert somit als Sammler und kann einen Filter und/oder Trockner aufnehmen.In an advantageous embodiment of the invention, the partition may include two pipe groups of the Kältemittelanströmseite together with an extending baffle her, so that the partition wall forms a deflection chamber within the tube. The remaining space thus acts as a collector and can accommodate a filter and / or dryer.

In weiterer vorteilhafter Ausgestaltung der Erfindung kann das Trocknermaterial in einem geeigneten, als Sieb ausgebildeten Behälter enthalten sein, der gleichzeitig mit der Trennwand im Rohr verlötet wird, oder auch nachträglich eingebracht werden kann und dann eingeschweißt wird.In a further advantageous embodiment of the invention, the dryer material may be contained in a suitable, designed as a sieve container, which is soldered simultaneously with the partition wall in the pipe, or can also be introduced subsequently and is then welded.

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

Fig. 1
einen Kältemittelkondensator in schematischer Darstellung mit Blick auf dessen Stirnfläche,
Fig. 2
den selben Kondensator wie in Fig. 1 in einer Seitenansicht und
Fig. 3
die Trennwand als Einzelteil.
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show it:
Fig. 1
a refrigerant condenser in a schematic representation with a view of its end face,
Fig. 2
the same capacitor as in Fig. 1 in a side view and
Fig. 3
the partition as a single part.

Fig. 1 zeigt einen Kältemittelkondensator 1 mit einem Sammelrohr 2 und einem Sammel/Sammlerrohr 3, zwischen welchen ein nicht näher dargestellter, an sich bekannter Rohrrippenblock 4 angeordnet ist. Das linke Sammelrohr 2 weist einen Kältemitteleintritt 5 und einen Kältemittelaustritt 6 auf sowie zwei Trennwände 7 und 8. Das Sammel/Sammlerrohr 3 weist gegenüber dem Sammelrohr 2 einen größeren Querschnitt auf, was insbesondere aus Fig. 2 erkennbar wird. Das Rohr 3 weist eine Längsachse 3.1 und einen kreisförmigen Querschnitt 3.2 auf. In den Rohrquerschnitt 3.2 ist eine eben ausgebildete, schräg zur Rohrlängsachse 3.1 verlaufende Trennwand 9 eingesetzt, die an ihrem unteren Ende eine etwa stumpfwinklig abgewinkelte Umlenkwand 9.1 aufweist. An ihrem oberen Ende ist mit der Trennwand 9 ein Deckel 9.2 verbunden, der etwa spitzwinklig zur Ebene der Trennwand 9 abgewinkelt ist und damit etwa rechtwinklig zur Rohrlängsachse 3.1. Die gesamte Trennwand 9 mit der Umlenkwand 9.1 und dem Deckel 9.2 ist mit der Innenwand 3.3 des Rohres 3 verlötet. Damit die Trennwand 9 in der beschriebenen schräg angeordneten Position spaltfrei in den Innenquerschnitt 3.2 des Rohres 3 eingesetzt und dort dicht verlötet werden kann, ist ihr Umriß entsprechend gestaltet, d. h. er ergibt sich als schräg zur Achse 3.1 verlaufender Zylinderschnitt, d. h. die Konturen der ebenen Trennwand 9, deren Ebene senkrecht zur Ebene der Zeichenebene verläuft, sind Teile einer Ellipse. Durch diese Trennwand 9 in Verbindung mit der Umlenkwand 9.1 wird eine Umlenkkammer 10 und ein Sammelraum 11 gebildet. Im unteren Bereich 11.1 des Sammelraumes 11 ist ein Filter 12 mit Trockner 13 angeordnet, die an sich bekannt sind. Der bereits erwähnte Rohrrippenblock 4 besteht vorzugsweise aus nicht näher dargestellten Flachrohren (extrudierte Mehrkammerrohre) und zwischen ihnen angeordneten Wellrippen. Sämtliche Teile des Kondensators, die aus einer Aluminiumlegierung bestehen, werden in einem Lötofen hartgelötet. Auch der Trockner und/oder Filter 12/13 können bereits vor dem Lötvorgang in das Rohr 3 eingesetzt und mit diesem verlötet werden - hierfür ist das Trocknergranulat in einem lötbaren Metallkäfig einzuschließen. Fig. 1 shows a refrigerant condenser 1 with a manifold 2 and a collecting / collecting pipe 3, between which a not-shown, known per se pipe fin block 4 is arranged. The left header 2 has a refrigerant inlet 5 and a refrigerant outlet 6 and two partitions 7 and 8. The collecting / collecting tube 3 has over the collecting tube 2 has a larger cross section, which in particular from Fig. 2 becomes recognizable. The tube 3 has a longitudinal axis 3.1 and a circular cross section 3.2. In the pipe cross-section 3.2 a just trained, obliquely to the pipe axis 3.1 extending partition 9 is used, which has at its lower end an approximately obtuse angled deflecting 9.1. At its upper end a cover 9.2 is connected to the partition wall 9, which is angled approximately at an acute angle to the plane of the partition wall 9 and thus approximately at right angles to the pipe longitudinal axis 3.1. The entire partition wall 9 with the deflection wall 9.1 and the cover 9.2 is soldered to the inner wall 3.3 of the tube 3. Thus, the partition wall 9 can be used in the described obliquely arranged position gap-free in the inner cross-section of the pipe 3 3.2 and tightly soldered there, their outline is designed accordingly, ie it results as oblique to the axis 3.1 extending cylinder section, ie the contours of the flat partition 9, whose plane is perpendicular to the plane of the drawing, is part of an ellipse. Through this partition 9 in conjunction with the baffle 9.1, a deflection chamber 10 and a collecting space 11 is formed. In the lower area 11.1 of the collecting space 11, a filter 12 is arranged with dryer 13, which are known per se. The already mentioned tube fin block 4 is preferably made of flat tubes not shown (extruded multi-chamber tubes) and arranged between them corrugated fins. All parts of the capacitor made of an aluminum alloy are brazed in a brazing furnace. Also, the dryer and / or filter 12/13 can be used before the soldering in the tube 3 and soldered to it - this is the dryer granules to include in a solderable metal cage.

Die Funktion des Kältemittelkondensators 1 bzw. der Kältemittelfluß ist folgender: das Kältemittel tritt über den Kältemitteleinlaß 5 in den Kondensator 1 ein und durchströmt zunächst eine erste Rohrgruppe 4.1, die sich aus der Anordnung der Trennwand 7 ergibt. In Richtung des Pfeiles F1 strömt das Kältemittel auf die andere Seite des Kältemittelkondensators und tritt dann in die Umlenkkammer 10 ein, die durch die Trennwand 9 und die Umlenkwand 9.1 gebildet wird. Hier wird das Kältemittel umgelenkt und durchströmt dann eine zweite Rohrgruppe 4.2 in Richtung des Pfeiles F2. Im Sammelrohr 2 wird dieser Kältemittelstrom auf Grund der weiteren Trennwand 8 umgelenkt, durchströmt in einer dritten Rohrgruppe 4.3 in Richtung des Pfeiles F3 den Kondensator nach rechts und tritt dort in den Sammlerraum 11 ein. Hier kommt das Kältemittel mit dem Trockner 13 in Kontakt und wird dehydriert. Nach Durchströmen des Filters 12 gelangt das Kältemittel, welches nunmehr ausschließlich in flüssiger Phase vorliegt, in die letzte Rohrgruppe 4.4 und strömt in Richtung des Pfeiles F4 zum Kältemittelauslaß 6. Im Sammlerraum 11 trennt sich die gasförmige von der flüssigen Phase, so daß sich im oberen Bereich 11.2 vorwiegend gasförmiges Kältemittel befindet.The function of the refrigerant condenser 1 or the refrigerant flow is as follows: the refrigerant enters the condenser 1 via the refrigerant inlet 5 and first flows through a first tube group 4.1, which results from the arrangement of the dividing wall 7. In the direction of the arrow F1, the refrigerant flows to the other side of the refrigerant condenser and then enters the deflection chamber 10, which is formed by the partition wall 9 and the baffle 9.1. Here, the refrigerant is deflected and then flows through a second pipe group 4.2 in the direction of arrow F2. In the collecting pipe 2, this refrigerant flow is deflected due to the further partition wall 8, flows through the condenser to the right in a third pipe group 4.3 in the direction of the arrow F3 and enters the collector chamber 11 there. Here, the refrigerant comes in contact with the dryer 13 and is dehydrated. After flowing through the filter 12, the refrigerant, which is now exclusively in the liquid phase, enters the last tube group 4.4 and flows in the direction of arrow F4 to the refrigerant outlet 6. In the collector chamber 11 separates the gaseous from the liquid phase, so that in the upper Area 11.2 mainly gaseous refrigerant is located.

Fig. 3 zeigt die Trennwand 9 als gestanztes Blechteil, d. h. die Bereiche 9, 9.1 und 9.2 liegen noch in einer Ebene. Die eigentliche Trennwand 9 weist an ihren Außenseiten (Umriß) zwei elliptische Bogenstücke 9.4 und 9.5 auf, deren genaue Kontur sich aus einem schrägen Schnitt durch den Rohrzylinder 3 mit dem Kreisquerschnitt 3.2 ergibt. An diese beiden elliptischen Konturen 9.4 und 9.5 sind einerseits ein Kreisquerschnitt 9.2 über einen schmalen Verbindungssteg 9.6 angesetzt und andererseits ein etwa halbkreisförmiges Ansatzstück 9.1, welches die Umlenkwand bildet. Schließlich ist zur Fixierung der Trennwand im Rohr 3 ein zungenförmiger Ansatz 9.3 mit ausgestanzt, der in nicht dargestellter Weise in eine Öffnung im Rohr 3 eingreift und mit diesem verlötet wird. Nachdem dieses Blechteil 9, 9.1, 9.2 aus einer ebenen Blechplatine ausgestanzt ist, werden die Teile 9.2 und 9.1 in der oben beschriebenen Weise abgewinkelt und dann in das Rohr 3 eingesetzt. Alle Teile liegen dann mit relativ geringem Spalt an der Innenwandung 3.2 des Rohres 3 an und können somit dicht verlötet werden. Fig. 3 shows the partition 9 as a stamped sheet metal part, ie the areas 9, 9.1 and 9.2 are still in a plane. The actual partition wall 9 has on its outer sides (outline) on two elliptical elbows 9.4 and 9.5, the exact contour of which results from an oblique section through the tube cylinder 3 with the circular cross-section 3.2. On these two elliptical contours 9.4 and 9.5 are on the one hand a circular cross-section 9.2 on a narrow connecting web 9.6 attached and on the other hand, an approximately semicircular lug 9.1, which forms the baffle. Finally, for fixing the partition wall in the tube 3, a tongue-shaped projection 9.3 punched with, which engages in a manner not shown in an opening in the tube 3 and is soldered to it. After this sheet metal part 9, 9.1, 9.2 is punched out of a flat sheet metal blank, the parts 9.2 and 9.1 are angled in the manner described above and then inserted into the tube 3. All parts then lie against the inner wall 3.2 of the tube 3 with a relatively small gap and can thus be soldered tightly.

Claims (7)

  1. Cooling medium condenser (1) for a motor vehicle air-conditioning system, consisting of a finned tube block (4) and header tubes (2, 3) which receive the ends of the tubes, and an integrated header (3), such that at least one header tube (2) comprises at least one partition wall (7, 8) to deflect the cooling medium flowing through the tubes (4, 4.1, 4.2, 4.3, 4.4) and a cooling medium inlet (5) and/or a cooling medium outlet (6), the header tube and the header consisting of a single tube (3), characterised in that the said tube is divided by a partition wall (9) that extends obliquely relative to the longitudinal axis (3.1) of the tube (3) into a header tube section (10) and a header space (11).
  2. Cooling medium condenser according to Claim 1, characterised in that the partition wall (9) is in the form of a flat sheet whose contour (9.4, 9.5) corresponds to the intersection line of a section of a plane with the envelope (3.3) of the tube (3) and which is soldered at the periphery to the inside wall (3.3) of the tube (3).
  3. Cooling medium condenser according to Claim 2, characterised in that the tube (3) is of circular cylindrical shape (3.2) and the contour of the partition wall (9) is formed by curved portions (9.4, 9.5) of an ellipse.
  4. Cooling medium condenser according to Claims 2 or 3, characterised in that the partition wall (9) is formed integrally with a cover (9.2) which closes the tube (3).
  5. Cooling medium condenser according to any of Claims 1 to 4, characterised in that the partition wall (9) is formed integrally with a deflecting wall (9.1).
  6. Cooling medium condenser according to Claim 5, characterised in that the partition wall (9) and its angled deflecting wall (9.1) comprise two tube groups (4.1, 4.2) with opposite flow directions and form a deflection chamber (10) for the cooling medium.
  7. Cooling medium condenser according to Claims 5 or 6, characterised in that a dryer and/or a filter (12/13) is/are arranged under the deflecting wall (9.1).
EP02023854A 2001-11-08 2002-10-24 Cooling medium condensor Expired - Fee Related EP1310760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10155001A DE10155001A1 (en) 2001-11-08 2001-11-08 Refrigerant condenser
DE10155001 2001-11-08

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EP1310760A1 EP1310760A1 (en) 2003-05-14
EP1310760B1 true EP1310760B1 (en) 2009-03-25

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EP02023854A Expired - Fee Related EP1310760B1 (en) 2001-11-08 2002-10-24 Cooling medium condensor

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EP (1) EP1310760B1 (en)
AT (1) ATE426791T1 (en)
DE (2) DE10155001A1 (en)

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WO2012140116A3 (en) * 2011-04-12 2012-12-13 Behr Gmbh & Co. Kg Refrigerant condenser assembly

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DE102013204294A1 (en) * 2013-03-12 2014-10-02 Behr Gmbh & Co. Kg Condenser assembly for refrigerant
DE102016122310A1 (en) * 2016-11-21 2018-05-24 Valeo Klimasysteme Gmbh Condenser for an air conditioning system, in particular for a motor vehicle
EP3620727A1 (en) * 2018-09-06 2020-03-11 Valeo Klimasysteme GmbH Condenser with insert for an air conditioning system, in particular for a motor vehicle

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DE4245046C8 (en) * 1992-11-18 2008-08-21 Behr Gmbh & Co. Kg Condenser for an air conditioning system of a vehicle
FR2735851B1 (en) * 1995-06-23 1997-08-01 Valeo Thermique Moteur Sa CONDENSER WITH INTEGRATED TANK FOR AIR CONDITIONING SYSTEM OF MOTOR VEHICLE
FR2758876B1 (en) * 1997-01-27 1999-04-02 Valeo Thermique Moteur Sa CONDENSER PROVIDED WITH A REFRIGERANT FLUID TANK FOR AIR CONDITIONING CIRCUIT
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WO2012140116A3 (en) * 2011-04-12 2012-12-13 Behr Gmbh & Co. Kg Refrigerant condenser assembly

Also Published As

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ATE426791T1 (en) 2009-04-15
DE10155001A1 (en) 2003-05-22
DE50213385D1 (en) 2009-05-07
EP1310760A1 (en) 2003-05-14

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