EP1171745A1 - Heat transmission unit for a motor vehicle - Google Patents

Heat transmission unit for a motor vehicle

Info

Publication number
EP1171745A1
EP1171745A1 EP00918766A EP00918766A EP1171745A1 EP 1171745 A1 EP1171745 A1 EP 1171745A1 EP 00918766 A EP00918766 A EP 00918766A EP 00918766 A EP00918766 A EP 00918766A EP 1171745 A1 EP1171745 A1 EP 1171745A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
fan frame
exchanger unit
unit according
motor vehicle
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
EP00918766A
Other languages
German (de)
French (fr)
Other versions
EP1171745B1 (en
Inventor
Karl-Heinz Staffa
Hans-Joachim Krauss
Hagen Mittelstrass
Christoph Walter
Bernd Dienhart
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
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1171745A1 publication Critical patent/EP1171745A1/en
Application granted granted Critical
Publication of EP1171745B1 publication Critical patent/EP1171745B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/52—Details mounting heat-exchangers

Definitions

  • the invention relates to a heat exchanger unit for a motor vehicle in accordance with the preamble of claim 1.
  • Such a heat exchanger unit is known from DE 34 04 887, in which a radiator of the motor vehicle, an expansion tank of the radiator, a fan frame and a grille are preassembled to form a compact cooling unit. The entire, pre-assembled unit can then be used in the motor vehicle.
  • the cooler and the fan frame are designed accordingly in order to be able to be connected to one another.
  • the cooler and the fan frame have various holding devices, holding frames and holding tabs which are held together by clips or clips.
  • Such a combination and connection of the individual components is relatively complex and correspondingly inexpensive.
  • brackets In order to hold and connect a condenser of an air conditioning system to a fan frame, it is known from the Mercedes-Benz W202 vehicle to attach brackets to the so-called condenser network, which is composed of flat tubes and corrugated fins, by riveting the brackets through the condenser network. This can easily damage the flat tubes adjacent to a rivet.
  • the brackets disadvantageously reduce that of the Air that can flow freely.
  • the riveted brackets are also inexpensive.
  • the heat exchanger is held on the fan frame by means of its collecting tubes, so that no additional holding straps or holding frames are necessary.
  • This simplified bracket simplifies the assembly of the heat exchanger and fan frame and reduces the manufacturing and manufacturing costs. Furthermore, the entire air inflow surface of the heat exchanger can be flowed through freely, since no fastening points are provided within the network formed by fins and tubes of the heat exchanger.
  • the heat exchanger is preferably a refrigerant condenser or a gas cooler of an air conditioning system of the motor vehicle, since in the embodiment according to the invention in conjunction with the fan frame and a coolant cooler, these can then be preassembled particularly simply to form a cooling module and held within the module.
  • the holder is formed by clips arranged on the fan frame, into which the heat exchanger with its manifolds can be clipped. Then only the fan frame has to have corresponding clips and the heat exchanger can be attached to the fan frame easily, quickly and correspondingly inexpensively in the pre-assembly.
  • the heat exchanger need not have any additional fasteners.
  • at least one collecting tube is bent at its ends and the ends can be pushed through openings provided in the fan frame and can be fixed in the openings by a securing means. This creates a particularly reliable connection between the heat exchanger and fan frame, which cannot be solved independently.
  • the heat exchanger in a further embodiment of the invention can be plugged into a pocket-like receptacle of the fan frame with at least one of the header tubes and can be fixed at another point on the fan frame with at least one fastening means, for example a clip.
  • the heat exchanger then only has to be inserted into the receptacle and clipped in by pivoting.
  • FIG. 1 A heat exchanger unit according to the invention in
  • Fan frame the manifold of the heat exchanger being mounted in pocket-like receptacles
  • Fig. 6 shows a further heat exchanger unit, in which a
  • Fig. 7 shows a further heat exchanger unit.
  • a heat exchanger unit 10 shown in the drawing has a fan frame 12 and at least one heat exchanger 14.
  • the heat exchanger 14 is used for heat exchange between air, which is conveyed by a fan, not shown, which is arranged on the fan frame, and a fluid, for example a refrigerant of a vehicle air conditioning system.
  • the heat exchanger 14 is preferably designed in a flat tube construction, the flat tubes and corrugated fins arranged between the flat tubes forming a so-called heat exchanger network 16.
  • the flat tubes extend between two header tubes 18 and 20.
  • the heat exchanger 14 is preferably a flat tube condenser with a construction depth of approximately 8-12 mm.
  • the diameter of the header tubes 18 and 20 is preferably less than or equal to the overall depth of the heat exchanger network 16.
  • the flat tubes are then twisted in a known manner at their ends, at which they are connected to the header tubes 18 and 20, as is described, for example, in DE 196 49 129 is known.
  • the heat exchanger 14 is held on the fan frame 12 via its manifolds 18 and 20.
  • the header tubes 18 and 20 are held with their lower ends 22 and 24 in a base 26 of the fan frame 12. This can be achieved, for example, in that the ends 22 and 24 can be inserted into openings 28 and 30, the net 16 resting on the floor 26 via support elements 32 and 34, which are made, for example, of rubber (FIG. 1).
  • the lower ends 22 and 24 of the collecting tubes 18 and 20 can be held in that the bottom 26 of the fan frame 12 has corresponding pocket-like receptacles 36 (FIG. 4) or 38 (FIG. 5).
  • the pocket-like receptacle 36, 38 can be formed as a shape of the base 26 (FIG. 4) or by a sleeve 40 applied to the base 26, into which the end of the collecting tube can be inserted, as shown in FIG. 5.
  • the collecting tubes 18 and 20 are held on the fan frame 12 by means of suitable fastening devices 46. Embodiments of the fastening device 46 are shown in FIGS. 2 and 3.
  • the fastening device 46 is designed as a clip connection, wherein the upper ends 42 and 44 can only be clipped into corresponding clips 48 of the fan frame 12.
  • the heat exchanger 14 then only has to be inserted into the base 26 of the fan frame and simply clipped into the clips 48 by slight pivoting, as a result of which the heat exchanger 14 is firmly connected to the fan frame 12.
  • the upper ends 42 and 44 of the header tubes 18 and 20 can also be screwed to the fan frame, for which purpose the fan frame 12 has stops 50 for the upper ends 42 and 44 and the ends 42 and 44 are held in abutment against the stop 50 by a holding element 52 which can be screwed to the stop 50.
  • At least one of the header tubes 20, but preferably both header tubes is bent at their ends 24, 44 by preferably approximately 90 degrees, so that the bent ends 42, 44 are in the fan frame 12
  • the provided openings 54, 56 can be pushed through and can be fixed in the openings 54, 56 by a securing means 58, 60, for example a snap ring.
  • the heat exchanger 14 then only has to be inserted with its header ends into the fan frame 12 and the securing means 58 and 60 have to be applied to the ends 42, 44 of the header tubes inserted through the openings 54 and 56.
  • Collecting tubes 18 are preferably inserted and held over approximately their full length in a pocket-like holder 62, while the other collecting tube 20 is connected to the fan frame via at least one clip 64 12 is held.
  • the pocket-like receptacle 62 acts like a hinge, so that when the heat exchanger 14 is inserted, it is first inserted into the pocket-like receptacle 62 and then like a door by pivoting about the longitudinal axis of the collecting tube 18 and pressing the Collecting tube 20 can be fixed against the clips 64.
  • the heat exchanger could be held only by clips on the fan frame with its manifolds. It would also be conceivable not to provide the lower ends of the collecting tubes in pocket-like receptacles, but vice versa, to insert the upper ends and only clip the lower ends onto the fan frame.

Abstract

The invention relates to a heat transmission unit for a motor vehicle, comprising a fan cowling (12) and at least one heat exchanger (14) connected thereto. In order to provide an improved heat transmission unit which can be especially produced in an economical manner an which enables easy connection to the heat exchanger to the fan cowling especially during pre-assembly of the cooling module, the heat exchanger (14) is maintained on the fan cowling (12) by means of its manifolds (18, 20).

Description

Wärmeübertragereinheit für ein Kraftfahrzeug Heat exchanger unit for a motor vehicle
Die Erfindung betrifft eine Wärmeübertragereinheit für ein Kraftfahrzeug ge- maß dem Oberbegriff des Anspruchs 1.The invention relates to a heat exchanger unit for a motor vehicle in accordance with the preamble of claim 1.
Aus der DE 34 04 887 ist eine derartige Wärmeübertragereinheit bekannt, bei der ein Kühler des Kraftfahrzeuges, ein Ausgleichsbehälters des Kühlers, eine Lüfterzarge und ein Ziergitter zu einer kompakten Kühleinheit vormontiert sind. Die gesamte, vormontierte Einheit ist dann in das Kraftfahrzeug einsetzbar. Der Kühler und die Lüfterzarge sind entsprechend ausgebildet, um miteinander verbunden werden zu können. Dazu weisen der Kühler und die Lüfterzarge verschiedene Haltevorrichtungen, Halterahmen und Haltelaschen auf, die über Klammern oder Clipse zusammengehalten werden. Eine derartige Zusammenfassung und Verbindung der einzelnen Komponenten ist relativ aufwendig und entsprechend kostenungünstig.Such a heat exchanger unit is known from DE 34 04 887, in which a radiator of the motor vehicle, an expansion tank of the radiator, a fan frame and a grille are preassembled to form a compact cooling unit. The entire, pre-assembled unit can then be used in the motor vehicle. The cooler and the fan frame are designed accordingly in order to be able to be connected to one another. For this purpose, the cooler and the fan frame have various holding devices, holding frames and holding tabs which are held together by clips or clips. Such a combination and connection of the individual components is relatively complex and correspondingly inexpensive.
Zur Halterung und Verbindung eines Kondensators einer Klimaanlage mit einer Lüfterzarge ist es von dem Fahrzeug W202 der Marke Mercedes-Benz her bekannt, Halterungen an dem aus Flachrohren und Wellrippen aufgebauten, sogenannten Kondensatornetz anzubringen, indem die Halterungen durch das Kondensatornetz hindurch angenietet werden. Dabei kann es leicht zu Beschädigungen der einem Niet benachbarten Flachrohre kommen. Die Halterungen reduzieren in nachteiliger Weise auch die von der Luft frei durchströmbare Fläche. Die angenieteten Halterungen sind zudem kostenungünstig.In order to hold and connect a condenser of an air conditioning system to a fan frame, it is known from the Mercedes-Benz W202 vehicle to attach brackets to the so-called condenser network, which is composed of flat tubes and corrugated fins, by riveting the brackets through the condenser network. This can easily damage the flat tubes adjacent to a rivet. The brackets disadvantageously reduce that of the Air that can flow freely. The riveted brackets are also inexpensive.
Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung die vorgenannten Nachteile zu vemeiden und eine verbesserte Wärmeübertragereinheit bereitzustellen, die insbesondere kostengünstig herstellbar ist und eine einfache Verbindung des Wärmeübertragers mit der Lüfterzarge ermöglicht.Starting from this prior art, it is an object of the invention to avoid the aforementioned disadvantages and to provide an improved heat exchanger unit which is particularly inexpensive to manufacture and enables a simple connection of the heat exchanger to the fan frame.
Diese Aufgabe wird gelöst durch eine Wärmeübertragereinheit mit den Merkmalen des Anspruchs 1.This object is achieved by a heat exchanger unit with the features of claim 1.
Erfindungsgemäß ist der Wärmeübertrager über seine Sammelrohre an der Lüfterzarge gehalten, so daß keine zusätzlichen Haltelaschen oder Halte- rahmen notwendig sind. Durch diese vereinfachte Halterung ist der Zusammenbau von Wärmeübertrager und Lüfterzarge vereinfacht und die Herstell- und Fertigungskosten reduziert. Des weiteren ist die gesamte Luftanströmfläche des Wärmeübertragers frei durchströmbar, da innerhalb des durch Rippen und Rohre des Wärmeübertragers gebildeten Netzes keine Befestigungspunkte vorgesehen sind.According to the invention, the heat exchanger is held on the fan frame by means of its collecting tubes, so that no additional holding straps or holding frames are necessary. This simplified bracket simplifies the assembly of the heat exchanger and fan frame and reduces the manufacturing and manufacturing costs. Furthermore, the entire air inflow surface of the heat exchanger can be flowed through freely, since no fastening points are provided within the network formed by fins and tubes of the heat exchanger.
Bevorzugt ist der Wärmeübertrager ein Kältemittelkondensator oder ein Gaskühler einer Klimaanlage des Kraftfahrzeugs, da diese in der erfindungsgemäßen Ausgestaltung in Verbindung mit der Lüfterzarge und einem Kühlmittelkühler dann besonders einfach zu einem Kühlmodul vormontiert und innerhalb des Moduls gehalten werden können.The heat exchanger is preferably a refrigerant condenser or a gas cooler of an air conditioning system of the motor vehicle, since in the embodiment according to the invention in conjunction with the fan frame and a coolant cooler, these can then be preassembled particularly simply to form a cooling module and held within the module.
In einfachster Weise ist die Halterung gebildet durch an der Lüfterzarge angeordnete Clipse, in die der Wärmeübertrager mit seinen Sammelrohren ein- clipsbar ist. Dann muß lediglich die Lüfterzarge entsprechende Clipse aufweisen und der Wärmeübertrager kann einfach, schnell und entsprechend kostengünstig in der Vormontage an die Lüfterzarge angebracht werden. Der Wärmeübertrager braucht keine zusätzliche Befestigungsmittel aufweisen. In einer Ausgestaltung der Erfindung ist wenigstens ein Sammelrohr an seine Enden abgebogen und die Enden durch in der Lüfterzarge vorgesehene Öffnungen durchsteckbar und durch ein Sicherungsmittel in den Öffnungen festlegbar. Dadurch ist eine besonders funktionssichere Ver- bindung zwischen Wärmeübertrager und Lüfterzarge geschaffen, die sich nicht selbstständig lösen kann.In the simplest manner, the holder is formed by clips arranged on the fan frame, into which the heat exchanger with its manifolds can be clipped. Then only the fan frame has to have corresponding clips and the heat exchanger can be attached to the fan frame easily, quickly and correspondingly inexpensively in the pre-assembly. The heat exchanger need not have any additional fasteners. In one embodiment of the invention, at least one collecting tube is bent at its ends and the ends can be pushed through openings provided in the fan frame and can be fixed in the openings by a securing means. This creates a particularly reliable connection between the heat exchanger and fan frame, which cannot be solved independently.
Um die Vormontage weiter zu vereinfachen, ist in einer weiteren Ausgestaltung der Erfindung der Wärmeübertrager mit wenigstens einem der Sammelrohre in eine taschenartige Aufnahme der Lüfterzarge einsteckbar und mit wenigstens einem Befestigungsmittel, beispielsweise einem Clips, an einer anderen Stelle an der Lüfterzarge festlegbar. Zur Montage muß dann lediglich der Wärmeübertrager in die Aufnahme eingesetzt und durch Verschwenken eingeclipst werden.In order to further simplify the pre-assembly, in a further embodiment of the invention the heat exchanger can be plugged into a pocket-like receptacle of the fan frame with at least one of the header tubes and can be fixed at another point on the fan frame with at least one fastening means, for example a clip. For assembly, the heat exchanger then only has to be inserted into the receptacle and clipped in by pivoting.
Im folgenden wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung im einzelnen erläutert.The invention is explained in detail below using exemplary embodiments with reference to the drawing.
In der Zeichnung zeigen:The drawing shows:
Fig. 1 Eine erfindungsgemäße Wärmeübertragereinheit inFig. 1 A heat exchanger unit according to the invention in
Luftanströmrichtung gesehen;Air flow direction seen;
Fig. 2 u. 3 Möglichkeiten der Verbindung zwischen Wärme- Übertrager und Lüfterzarge;Fig. 2 u. 3 ways of connecting the heat exchanger and fan frame;
Fig. 4 u. 5 Verbindungen der Wärmeübertragereinheit mit derFig. 4 u. 5 connections of the heat exchanger unit with the
Lüfterzarge, wobei das Sammelrohr des Wärmeübertragers in taschenartigen Aufnahmen gelagert ist;Fan frame, the manifold of the heat exchanger being mounted in pocket-like receptacles;
Fig. 6 eine weitere Wärmeübertragereinheit, bei der einFig. 6 shows a further heat exchanger unit, in which a
Sammelrohr des Wärmeübertragers an seinen Enden abgebogen ist; Fig. 7 eine weitere Wärmeübertragereinheit.Header of the heat exchanger is bent at its ends; Fig. 7 shows a further heat exchanger unit.
Eine in der Zeichnung dargestellte Wärmeübertragereinheit 10 weist eine Lüfterzarge 12 und wenigstens einen Wärmeübertrager 14 auf. Der Wärme- Übertrager 14 dient zum Wärmetausch zwischen Luft, die von einem nicht dargestellten Lüfter, der an der Lüfterzarge angeordnet ist, gefördert wird und einem Fluid, beispielsweise ein Kältemittel einer Fahrzeugklimaanlage. Bevorzugt ist der Wärmeübertrager 14 in Flachrohrbauweise ausgebildet, wobei die Flachrohre und zwischen den Flachrohren angeordnete Well- rippen ein sogenanntes Wärmeübertragernetz 16 bilden. Die Flachrohre erstrecken sich zwischen zwei Sammelrohren 18 und 20.A heat exchanger unit 10 shown in the drawing has a fan frame 12 and at least one heat exchanger 14. The heat exchanger 14 is used for heat exchange between air, which is conveyed by a fan, not shown, which is arranged on the fan frame, and a fluid, for example a refrigerant of a vehicle air conditioning system. The heat exchanger 14 is preferably designed in a flat tube construction, the flat tubes and corrugated fins arranged between the flat tubes forming a so-called heat exchanger network 16. The flat tubes extend between two header tubes 18 and 20.
Bevorzugt ist der Wärmeübertrager 14 ein Flachrohrkondensator mit einer Bautiefe von ca. 8-12 mm. Der Durchmesser der Sammelrohre 18 und 20 ist bevorzugt kleiner oder gleich der Bautiefe des Wärmeübertragernetzes 16. Die Flachrohre sind dann in bekannter Weise an ihren Enden, an den sie mit den Sammelrohren 18 und 20 verbunden sind, verdreht, wie dies beispielsweise aus der DE 196 49 129 bekannt ist.The heat exchanger 14 is preferably a flat tube condenser with a construction depth of approximately 8-12 mm. The diameter of the header tubes 18 and 20 is preferably less than or equal to the overall depth of the heat exchanger network 16. The flat tubes are then twisted in a known manner at their ends, at which they are connected to the header tubes 18 and 20, as is described, for example, in DE 196 49 129 is known.
Der Wärmeübertrager 14 ist erfindungsgemäß über seine Sammelrohre 18 und 20 an der Lüfterzarge 12 gehalten. In einem ersten Ausführungsbeispiel gemäß Fig. 1 sind dazu die Sammelrohre 18 und 20 mit ihren unteren Enden 22 und 24 in einem Boden 26 der Lüfterzarge 12 gehalten. Dies kann beispielsweise dadurch realisiert sein, daß die Enden 22 und 24 in Öffnungen 28 und 30 einsteckbar sind, wobei das Netz 16 über Auflageelemente 32 und 34, die beispielsweise aus Gummi bestehen, auf dem Boden 26 aufruht (Fig. 1 ).According to the invention, the heat exchanger 14 is held on the fan frame 12 via its manifolds 18 and 20. In a first exemplary embodiment according to FIG. 1, the header tubes 18 and 20 are held with their lower ends 22 and 24 in a base 26 of the fan frame 12. This can be achieved, for example, in that the ends 22 and 24 can be inserted into openings 28 and 30, the net 16 resting on the floor 26 via support elements 32 and 34, which are made, for example, of rubber (FIG. 1).
In alternativen Ausführungsformen kann die Halterung der unteren Enden 22 und 24 der Sammelrohre 18 und 20 dadurch realisiert sein, daß der Boden 26 der Lüfterzarge 12 entsprechende taschenartige Aufnahmen 36 (Fig. 4) oder 38 (Fig. 5) aufweist. Die taschenartige Aufnahme 36, 38 kann dabei als eine Ausformung des Boden 26 gebildet sein (Fig. 4) oder durch eine auf den Boden 26 aufgebracht Hülse 40, in die das Ende des Sammelrohrs einsteckbar ist, wie in Fig. 5 dargestellt. Mit ihren oberen Enden 42 und 44 sind die Sammelrohre 18 und 20 über geeignete Befestigungsvorrichtungen 46 an der Lüfterzarge 12 gehalten. Ausführungsformen der Befestigungsvorrichtung 46 sind in den Fig. 2 und 3 dargestellt. Gemäß Fig. 2 ist die Befestigungsvorrichtung 46 als Clipsverbindung ausgebildet, wobei die oberen Enden 42 und 44 lediglich in entsprechende Clipse 48 der Lüfterzarge 12 einclipsbar sind. Zur Vormontage der Wärmeübertragereinheit 10 muß dann lediglich der Wärmeübertrager 14 in den Boden 26 der Lüfterzarge eingesteckt und durch leichtes Ver- schwenken in einfacher Weise in die Clipse 48 eingeclipst werden, wodurch der Wärmeübertrager 14 fest mit der Lüfterzarge 12 verbunden ist.In alternative embodiments, the lower ends 22 and 24 of the collecting tubes 18 and 20 can be held in that the bottom 26 of the fan frame 12 has corresponding pocket-like receptacles 36 (FIG. 4) or 38 (FIG. 5). The pocket-like receptacle 36, 38 can be formed as a shape of the base 26 (FIG. 4) or by a sleeve 40 applied to the base 26, into which the end of the collecting tube can be inserted, as shown in FIG. 5. With their upper ends 42 and 44, the collecting tubes 18 and 20 are held on the fan frame 12 by means of suitable fastening devices 46. Embodiments of the fastening device 46 are shown in FIGS. 2 and 3. 2, the fastening device 46 is designed as a clip connection, wherein the upper ends 42 and 44 can only be clipped into corresponding clips 48 of the fan frame 12. To pre-assemble the heat exchanger unit 10, the heat exchanger 14 then only has to be inserted into the base 26 of the fan frame and simply clipped into the clips 48 by slight pivoting, as a result of which the heat exchanger 14 is firmly connected to the fan frame 12.
In der alternativen Ausführungsform der Befestigungsvorrichtung 46 gemäß Fig. 3 können die oberen Enden 42 und 44 der Sammelrohre 18 und 20 auch mit der Lüfterzarge verschraubt werden, wozu die Lüfterzarge 12 Anschläge 50 für die oberen Enden 42 und 44 aufweist und die Enden 42 und 44 durch ein Halteelement 52, das mit dem Anschlag 50 verschraubbar ist, in Anlage gegen den Anschlag 50 gehalten sind.In the alternative embodiment of the fastening device 46 according to FIG. 3, the upper ends 42 and 44 of the header tubes 18 and 20 can also be screwed to the fan frame, for which purpose the fan frame 12 has stops 50 for the upper ends 42 and 44 and the ends 42 and 44 are held in abutment against the stop 50 by a holding element 52 which can be screwed to the stop 50.
In einer weiteren Ausführungsform der Erfindung (Fig. 6) ist wenigstens eines der Sammelrohre 20, bevorzugt aber beide Sammelrohre, an ihren Enden 24, 44 um bevorzugt ca. 90 Grad abgebogen, so daß die abgebogenen Enden 42, 44 durch in der Lüfterzarge 12 vorgesehene Öffnungen 54, 56 durchsteckbar sind und durch ein Sicherungsmittel 58, 60, beispielsweise ein Sprengring, in den Öffnungen 54, 56 festlegbar sind. Zur Montage der Wärmeübertragereinheit 10 muß dann lediglich der Wärmeübertrager 14 mit seinen Sammelrohrenden in die Lüfterzarge 12 eingesteckt und die Sicherungsmittel 58 und 60 auf die durch die Öffnungen 54 und 56 hindurchgesteckten Enden 42, 44 der Sammelrohre aufgebracht werden.In a further embodiment of the invention (FIG. 6), at least one of the header tubes 20, but preferably both header tubes, is bent at their ends 24, 44 by preferably approximately 90 degrees, so that the bent ends 42, 44 are in the fan frame 12 The provided openings 54, 56 can be pushed through and can be fixed in the openings 54, 56 by a securing means 58, 60, for example a snap ring. To assemble the heat exchanger unit 10, the heat exchanger 14 then only has to be inserted with its header ends into the fan frame 12 and the securing means 58 and 60 have to be applied to the ends 42, 44 of the header tubes inserted through the openings 54 and 56.
In einer weiteren Ausführungsform der Erfindung gemäß Fig. 7 ist eines derIn a further embodiment of the invention according to FIG. 7, one of the
Sammelrohre 18 bevorzugt auf etwa seiner vollen Länge in eine taschenartige Halterung 62 eingeschoben und gehalten, während das andere Sammelrohr 20 über wenigstens einen Clips 64 an der Lüfterzarge 12 gehalten ist. Bei der Montage der Wärmeübertragereinheit 10 in dieser Ausführungsform wirkt die taschenartige Aufnahme 62 wie ein Scharnier, so daß bei Einsetzen des Wärmeübertragers 14 dieser zunächst in die taschenartige Aufnahme 62 eingesetzt wird und dann wie eine Tür durch Verschwenken um die Längsachse des Sammelrohrs 18 und Andrücken des Sammelrohres 20 gegen den Clips 64 festlegbar ist.Collecting tubes 18 are preferably inserted and held over approximately their full length in a pocket-like holder 62, while the other collecting tube 20 is connected to the fan frame via at least one clip 64 12 is held. When assembling the heat exchanger unit 10 in this embodiment, the pocket-like receptacle 62 acts like a hinge, so that when the heat exchanger 14 is inserted, it is first inserted into the pocket-like receptacle 62 and then like a door by pivoting about the longitudinal axis of the collecting tube 18 and pressing the Collecting tube 20 can be fixed against the clips 64.
Eine Vielzahl weiterer Möglichkeiten ist denkbar. Beispielsweise könnte der Wärmeübertrager ausschließlich durch Clipse an der Lüfterzarge mit seinen Sammelrohren gehalten sein. Auch wäre es denkbar nicht die unteren Enden der Sammelrohre in taschenartige Aufnahmen vorzusehen, sondern umgekehrt, die oberen Enden einzustecken und die unteren lediglich an der Lüfterzarge einzuclipsen. A variety of other options are conceivable. For example, the heat exchanger could be held only by clips on the fan frame with its manifolds. It would also be conceivable not to provide the lower ends of the collecting tubes in pocket-like receptacles, but vice versa, to insert the upper ends and only clip the lower ends onto the fan frame.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Wärmeübertragereinheit für ein Kraftfahrzeug mit einer Lüfterzarge (12) und wenigstens einem damit verbundenem Wärmeübertrager (14), dadurch gekennzeichnet, daß der Wärmeübertrager (14) über seine Sammelrohre (18, 20) an der Lüfterzarge (12) gehalten ist.1. Heat exchanger unit for a motor vehicle with a fan frame (12) and at least one associated heat exchanger (14), characterized in that the heat exchanger (14) via its manifolds (18, 20) is held on the fan frame (12).
2. Wärmeübertragereinheit nach Anspruch 1 , dadurch gekennzeichnet, daß der Wärmeübertrager (14) ein Kältemittelkondensator oder ein Gaskühler einer Klimaanlage in Flachrohrbauweise ist.2. Heat exchanger unit according to claim 1, characterized in that the heat exchanger (14) is a refrigerant condenser or a gas cooler of an air conditioning system in flat tube construction.
Wärmeübertragereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Halterung gebildet ist durch an der Lüfterzarge (12) angeordnete Clipse (48), in die der Wärmeübertrager (14) mit seinen Sammelrohren (18, 20) einclipsbar ist.Heat exchanger unit according to Claim 1 or 2, characterized in that the holder is formed by clips (48) which are arranged on the fan frame (12) and into which the heat exchanger (14) with its collecting tubes (18, 20) can be clipped.
4. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß wenigstens ein Sammelrohr (20) an seinen Enden (24 und 44) abgebogen ist und die Enden (24 und 44) durch in der Lüfterzarge (12) vorgesehene Öffnungen (54 und 56) durchsteckbar und durch ein Sicherungsmittel (58, 60) in den4. Heat exchanger unit according to one of the preceding claims, characterized in that at least one manifold (20) is bent at its ends (24 and 44) and the ends (24 and 44) through openings (54 and 56) provided in the fan frame (12) ) can be pushed through and through a securing means (58, 60) into the
Öffnungen (54 und 56) festlegbar sind.Openings (54 and 56) can be defined.
5. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wärmeübertrager (14) mit wenigstens einem der Sammelrohre (18, 20) in eine taschenartige Aufnahme (36, 38, 62) einsteckbar und mit wenigstens einem Befestigungsmittel (46), beispielsweise ein Clips (48), über wenigstens eines der Sammelrohre (18, 20) festlegbar ist.5. Heat exchanger unit according to one of the preceding claims, characterized in that the heat exchanger (14) with at least one of the manifolds (18, 20) in a pocket-like The receptacle (36, 38, 62) can be inserted and can be fixed with at least one fastening means (46), for example a clip (48), via at least one of the collecting tubes (18, 20).
6. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Durchmesser der Sammelrohre (18, 20) kleiner gleich der Blocktiefe des Wärmeübertragers (14) ist.6. Heat exchanger unit according to one of the preceding claims, characterized in that the diameter of the header tubes (18, 20) is less than or equal to the block depth of the heat exchanger (14).
7. Wärmeübertragereinheit nach Anspruch 6, dadurch gekennzeichnet, daß die Blocktiefe etwa 12 mm beträgt. 7. Heat exchanger unit according to claim 6, characterized in that the block depth is approximately 12 mm.
EP00918766A 1999-04-13 2000-03-07 Heat transmission unit for a motor vehicle Expired - Lifetime EP1171745B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19916475 1999-04-13
DE19916475A DE19916475A1 (en) 1999-04-13 1999-04-13 Heat transfer unit for a motor vehicle
PCT/EP2000/001964 WO2000062003A1 (en) 1999-04-13 2000-03-07 Heat transmission unit for a motor vehicle

Publications (2)

Publication Number Publication Date
EP1171745A1 true EP1171745A1 (en) 2002-01-16
EP1171745B1 EP1171745B1 (en) 2007-09-05

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ID=7904286

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EP00918766A Expired - Lifetime EP1171745B1 (en) 1999-04-13 2000-03-07 Heat transmission unit for a motor vehicle

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US (1) US6601640B1 (en)
EP (1) EP1171745B1 (en)
JP (1) JP2002541024A (en)
AT (1) ATE372494T1 (en)
AU (1) AU3961000A (en)
DE (2) DE19916475A1 (en)
WO (1) WO2000062003A1 (en)

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Also Published As

Publication number Publication date
ATE372494T1 (en) 2007-09-15
AU3961000A (en) 2000-11-14
DE19916475A1 (en) 2000-10-19
US6601640B1 (en) 2003-08-05
EP1171745B1 (en) 2007-09-05
DE50014630D1 (en) 2007-10-18
WO2000062003A1 (en) 2000-10-19
JP2002541024A (en) 2002-12-03

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