EP1497604A1 - Heat transfer unit, especially for a motor vehicle - Google Patents

Heat transfer unit, especially for a motor vehicle

Info

Publication number
EP1497604A1
EP1497604A1 EP03724969A EP03724969A EP1497604A1 EP 1497604 A1 EP1497604 A1 EP 1497604A1 EP 03724969 A EP03724969 A EP 03724969A EP 03724969 A EP03724969 A EP 03724969A EP 1497604 A1 EP1497604 A1 EP 1497604A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger unit
beads
unit according
side part
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.)
Withdrawn
Application number
EP03724969A
Other languages
German (de)
French (fr)
Inventor
Frank Reichle
Michael Spieth
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
Priority claimed from DE10255011A external-priority patent/DE10255011A1/en
Application filed by Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP1497604A1 publication Critical patent/EP1497604A1/en
Withdrawn legal-status Critical Current

Links

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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other
    • 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
    • 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
    • F28F2009/004—Common frame elements for multiple cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • Heat exchanger unit in particular for a motor vehicle
  • the invention relates to a heat exchanger unit with at least two heat exchangers, in particular for a motor vehicle, according to the preamble of claim 1.
  • a heat exchanger unit in particular in the form of a monoblock; consists of at least two heat exchangers in one unit, which saves installation space and manufacturing costs compared to a design with separate heat exchangers, and at least two side parts which enclose the heat exchanger unit.
  • mechanical stresses occur between the individual heat exchangers as a result of their differently large thermal expansion, which can lead to leaks, as a result of temperature changes and the associated temporarily different temperature levels in the heat exchangers.
  • the associated tensions between the heat exchangers and the side parts stress the ends of pipes in the heat exchanger unit, which can also lead to leaks here.
  • DE 197 53 408 A1 proposes a heat exchanger which has a ribs / tube block, the side parts of which are provided with expansion joints outside a network structure.
  • at least one expansion section is arranged at the level of the network structure of the fins / tube block.
  • the expansion section can be designed as a fold-like expansion joint or as expansion beads with cutout sections, tensioning straps being passed through the cutout sections for the assembly and soldering of the ribs / pipe block in order to hold the unit together.
  • a heat exchanger unit consists of at least two heat exchangers and has a plurality of tubes and corrugated fins interconnected in the manner of a network structure.
  • at least two side parts enclosing the heat exchanger unit are provided, at least one side part having at least one expansion section.
  • the at least one expansion section preferably extends essentially in a longitudinal direction of the side part. Such an expansion section enables transverse decoupling in the side part of mechanical decoupling of two heat exchangers.
  • a heat exchanger unit according to the invention has a sufficiently large stability of the side parts for transport and manufacture.
  • At least one further stretch section is preferably provided in the at least one side part. seen that runs in the transverse direction of the side part and enables longitudinal decoupling to protect the pipe ends. Such a configuration enables the two heat exchangers to be completely decoupled from one another.
  • At least one opening is preferably provided in the side part, which is arranged between two expansion sections.
  • the expansion section is preferably formed by one or more fold-like beads. If several beads are provided, they are preferably separated from one another by openings. The beads or openings are preferably aligned with one another. This results in better soldering of the two nets due to the hinge effect of the side parts, since the different setting behavior of the two nets is compensated for due to the unequal pipe geometries.
  • the openings are preferably wider than the beads.
  • the width of the openings in the longitudinal direction is preferably between five and ten times as large as the width of the beads in the longitudinal direction of the side surface.
  • the beads are preferably designed such that they are shaped towards the outside. This results in a relatively flat surface on the inside of the side parts.
  • an edge region of the side part is bent by approximately 90 ° along the longitudinal edge of the side part and the expansion section for the longitudinal decoupling is formed by two fold-like beads.
  • the beads are preferably designed such that they are mirror images, wherein they are shaped towards each other.
  • the expansion regions are preferably arranged in a region which is arranged on the outside of the side parts. This results in a relatively flat surface on the inside of the side parts.
  • 1 is a partial perspective view of a monoblock
  • Fig. 2 is a plan view of the monoblock of Fig. 1 and
  • Fig. 3 is a perspective view of a side part.
  • a heat exchanger unit 1 according to the invention in the form of a soldered all-aluminum monoblock has a flat tube condenser 2, a coolant cooler 3, which comprise a plurality of flat tubes and corrugated fins connected to one another in the manner of a network structure, and two side parts 4 lying opposite one another.
  • the side parts 4 have a transverse decoupling 10 in the form of an expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 and a longitudinal decoupling 20 for protecting the flat tube ends in the form of an expansion section 21.
  • the expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 is formed by a plurality of fold-like beads 12 which are spaced apart from one another by openings 13 in one
  • Line aligned in the longitudinal direction of the side parts 4 are arranged.
  • the expansion section 11 is arranged closer to the flat tube condenser 2 than to the coolant cooler 3.
  • the width of the openings 13 in the longitudinal direction of the side parts 4 is greater than the width of the fold-like beads 12 in the longitudinal direction of the side parts 4, the width of the openings 13 being approximately six times the width of the fold-like beads 12.
  • the fold-like beads 12 are bent outwards, ie away from the flat tube condenser 2 and from the coolant cooler 3 (see FIG. 1).
  • the expansion section 21 for the longitudinal decoupling 20 for protecting the flat tube ends is formed by part of an edge region of the side parts 4 which is bent outwards by approximately 90 ° and which is provided with a fold-like bead 22.
  • the side parts 4 have a slot-like opening 23 which runs in the transverse direction and extends from one edge region to the opposite edge region.
  • the fold-like beads 22 are designed such that they point towards one another (see FIG. 2).
  • the beads 12 and 22 lie on the outside of the side parts 4, so that an essentially flat surface is provided on the inside.
  • FIG. 3 shows a side part 100 for a heat exchanger unit (not shown) with two different heat exchangers as a further exemplary embodiment in a perspective view.
  • the side part 100 also has a transverse decoupling between an area 110 which is assigned to a first heat exchanger and an area 120 which is associated with a second
  • Heat exchanger is assigned to.
  • the transverse decoupling is accomplished by means of openings 130, so that the areas 110 and 120 are connected to one another only by webs 140, the webs 140 being designed in a curved shape for improved decoupling.
  • edges 150 of the through breaks 130 set up, so that the effect of the raised side panel edges 160 and 170 is enhanced.
  • the side part 100 has transverse openings 180 in addition to the openings 130.
  • Brackets 190 are used to mount the entire heat exchanger unit in a motor vehicle and, for simplification, are formed in one piece with the side part 100.
  • the side parts 4 have a transverse decoupling 10 in the form of an expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 and a longitudinal decoupling 20 for protecting the flat tube ends in the form of an expansion section 21.
  • the expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 is formed by a plurality of fold-like beads 12 which are arranged in a line in the longitudinal direction of the side parts 4, spaced apart from one another by openings 13.
  • the expansion section 11 is arranged closer to the flat tube condenser 2 than to the coolant cooler 3.
  • the width of the openings 13 in the longitudinal direction of the side parts 4 is greater than the width of the fold-like beads 12 in the longitudinal direction of the side parts 4, the width of the openings 13 being approximately six times the width of the fold-like beads 12.
  • the fold-like beads 12 are bent outwards, ie away from the flat tube condenser 2 and from the coolant cooler 3 (see FIG. 1). LIST OF REFERENCE NUMBERS
  • Heat exchanger unit flat tube condenser, coolant cooler, side part, transverse decoupling, expansion section, bead, opening, longitudinal decoupling, expansion section, beading, opening, 0, side part 0, first heat exchanger area, 0 second heat exchanger area, 0 opening for cross-decoupling, 0 web, 0 installation, 0 installation, 0 installation, 0 opening, for longitudinal decoupling, 0 holder

Landscapes

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

Abstract

The invention relates to a heat transfer unit comprising at least two heat transfer elements, especially for a motor vehicle. Said unit comprises a plurality of tubes and corrugated ribs, two side parts (4) which enclose the monoblock on the opposite sides thereof, whereby at least one side part (4) comprises at least one expansion section (11).

Description

BEHR GmbH & Co. Mauserstraße 3, 70469 Stuttgart BEHR GmbH & Co.Mauserstrasse 3, 70469 Stuttgart
Wärmeübertragereinheit, insbesondere für ein KraftfahrzeugHeat exchanger unit, in particular for a motor vehicle
Die Erfindung betrifft eine Wärmeübertragereinheit mit zumindet zwei Wär- meübertragern, insbesondere für ein Kraftfahrzeug, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a heat exchanger unit with at least two heat exchangers, in particular for a motor vehicle, according to the preamble of claim 1.
Eine Wärmeübertragereinheit, insbesondere in der Ausführung als Monoblock; besteht aus mindestens zwei Wärmeübertragern in Baueinheit, wo- durch gegenüber einer Gestaltung mit separaten Wärmeübertragern Bauraum und Herstellungskosten eingespart werden, und mindestens zwei Seitenteilen, die die Wärmeübertragereinheit einfassen. Bei solchen Wärmeübertragereinheiten treten infolge von Temperaturwechseln und damit verbundenen zeitweise unterschiedlichen Temperaturniveaus in den Wärme- Übertragern mechanische Spannungen zwischen den einzelnen Wärmeübertragern aufgrund deren unterschiedlich großer Wärmeausdehnung auf, die zu Undichtigkeiten führen können. Ferner belasten bei Temperaturwechsel die damit verbundenen Spannungen zwischen Wärmeübertragern und Seitenteilen die Enden von Rohren in der Wärmeübertragereinheit, was auch hier zu Undichtigkeiten führen kann. Aus diesem Grund wird in der DE 197 53 408 A1 ein Wärmeübertrager vorgeschlagen, der einen Rippen/Rohrblock aufweist, dessen Seitenteile außerhalb einer Netzstruktur mit Dehnungsfugen versehen sind. Hierbei ist we- nigstens ein Dehnungsabschnitt auf der Höhe der Netzstruktur des Rippen/Rohrblockes angeordnet. Der Dehnungsabschnitt kann dabei als faltenartige Dehnungsfuge oder als Dehnungssicken mit Aussparungsabschnitten ausgebildet sein, wobei durch die Aussparungsabschnitte Spannbänder für die Montage und Verlötung des Rippen/Rohrblockes hindurchgeführt wer- den, um die Einheit zusammen zu halten.A heat exchanger unit, in particular in the form of a monoblock; consists of at least two heat exchangers in one unit, which saves installation space and manufacturing costs compared to a design with separate heat exchangers, and at least two side parts which enclose the heat exchanger unit. In such heat exchanger units, mechanical stresses occur between the individual heat exchangers as a result of their differently large thermal expansion, which can lead to leaks, as a result of temperature changes and the associated temporarily different temperature levels in the heat exchangers. Furthermore, when the temperature changes, the associated tensions between the heat exchangers and the side parts stress the ends of pipes in the heat exchanger unit, which can also lead to leaks here. For this reason, DE 197 53 408 A1 proposes a heat exchanger which has a ribs / tube block, the side parts of which are provided with expansion joints outside a network structure. Here, at least one expansion section is arranged at the level of the network structure of the fins / tube block. The expansion section can be designed as a fold-like expansion joint or as expansion beads with cutout sections, tensioning straps being passed through the cutout sections for the assembly and soldering of the ribs / pipe block in order to hold the unit together.
Es ist Aufgabe der Erfindung, einen derartigen Wärmeübertrager zu verbessern.It is an object of the invention to improve such a heat exchanger.
Diese Aufgabe wird gelöst durch einen Wärmeübertrager mit den Merkmalen des Anspruchs 1.This object is achieved by a heat exchanger with the features of claim 1.
Erfindungsgemäß besteht eine Wärmeübertragereinheit aus zumindest zwei Wärmeübertragern und weist eine Mehrzahl von nach Art einer Netzstruktur miteinander verbundenen Rohren und Wellrippen auf. Darüberhinaus sind zumindest zwei die Wärmeübertragereinheit einfassende Seitenteile vorgesehen, wobei zumindest ein Seitenteil zumindest einen Dehnungsabschnitt aufweist. Vorzugsweise verläuft der zumindest eine Dehnungsabschnitt im wesentlichen in einer Längsrichtung des Seitenteiles. Ein derartiger Deh- nungsabschnitt ermöglicht eine Querentkopplung im Seitenteil mechanischen Entkopplung zweier Wärmeübertrager. Trotz der Entkopplung weist eine erfindungsgemäße Wärmeübertragereinheit eine ausreichend große Stabilität der Seitenteile für den Transport und die Fertigung auf.According to the invention, a heat exchanger unit consists of at least two heat exchangers and has a plurality of tubes and corrugated fins interconnected in the manner of a network structure. In addition, at least two side parts enclosing the heat exchanger unit are provided, at least one side part having at least one expansion section. The at least one expansion section preferably extends essentially in a longitudinal direction of the side part. Such an expansion section enables transverse decoupling in the side part of mechanical decoupling of two heat exchangers. Despite the decoupling, a heat exchanger unit according to the invention has a sufficiently large stability of the side parts for transport and manufacture.
Vorzugsweise ist neben dem zuvor genannten Dehnungsabschnitt zumindest ein weiterer Dehnungsabschnitt in dem zumindest einen Seitenteil vor- gesehen, der in Querrichtung des Seitenteiles verläuft und eine Längsentkopplung zum Schutz der Rohrenden ermöglicht. Eine derartige Ausgestaltung ermöglicht eine vollständige Entkopplung der beiden Wärmeübertrager gegeneinander.In addition to the aforementioned stretch section, at least one further stretch section is preferably provided in the at least one side part. seen that runs in the transverse direction of the side part and enables longitudinal decoupling to protect the pipe ends. Such a configuration enables the two heat exchangers to be completely decoupled from one another.
Vorzugsweise ist mindestens ein Durchbruch im Seitenteil vorgesehen, welcher zwischen zwei Dehnungsabschnitten angeordnet ist.At least one opening is preferably provided in the side part, which is arranged between two expansion sections.
Vorzugsweise wird der Dehnungsabschnitt durch eine oder mehrere falten- artige Sicken gebildet. Sind mehrere Sicken vorgesehen, so sind diese vorzugsweise durch Durchbrüche voneinander getrennt. Dabei fluchten vorzugsweise die Sicken bzw. Durchbrüche miteinander. Dabei ergibt sich eine bessere Verlötung der beiden Netze infolge der Scharnierwirkung der Seitenteile, da das unterschiedliche Setzverhalten der beiden Netze aufgrund der ungleichen Rohrgeometrien ausgeglichen wird.The expansion section is preferably formed by one or more fold-like beads. If several beads are provided, they are preferably separated from one another by openings. The beads or openings are preferably aligned with one another. This results in better soldering of the two nets due to the hinge effect of the side parts, since the different setting behavior of the two nets is compensated for due to the unequal pipe geometries.
Vorzugsweise sind die Durchbrüche breiter als die Sicken ausgebildet. Dabei ist die Breite der Durchbrüche in Längsrichtung vorzugsweise zwischen fünf- und zehn-mal so groß wie die Breite der Sicken in Längsrichtung der Seiten- fläche.The openings are preferably wider than the beads. The width of the openings in the longitudinal direction is preferably between five and ten times as large as the width of the beads in the longitudinal direction of the side surface.
Vorzugsweise sind die Sicken derart ausgebildet, dass sie nach außen geformt sind. Dies ergibt eine relativ ebene Fläche auf der Innenseite der Seitenteile.The beads are preferably designed such that they are shaped towards the outside. This results in a relatively flat surface on the inside of the side parts.
Gemäß einer bevorzugten Ausführungsform ist ein Randbereich des Seitenteiles um ca. 90° entlang der Längskante des Seitenteiles gebogen und der Dehnungsabschnitt zur Längsentkopplung wird durch zwei faltenartige Sicken gebildet. Dabei sind die Sicken vorzugsweise derart ausgebildet, dass sie spiegelbildlich ausgebildet sind, wobei sie aufeinander zu geformt sind. Vorzugsweise sind die Dehnungsbereiche in einem Bereich angeordnet, der auf der Außenseite der Seitenteile angeordnet ist. Dies ergibt eine relativ ebene Fläche auf der Innenseite der Seitenteile.According to a preferred embodiment, an edge region of the side part is bent by approximately 90 ° along the longitudinal edge of the side part and the expansion section for the longitudinal decoupling is formed by two fold-like beads. The beads are preferably designed such that they are mirror images, wherein they are shaped towards each other. The expansion regions are preferably arranged in a region which is arranged on the outside of the side parts. This results in a relatively flat surface on the inside of the side parts.
Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnung im einzelnen erläutert. In der Zeichnung zeigen:The invention is explained in detail below using an exemplary embodiment with reference to the drawing. The drawing shows:
Fig. 1 eine perspektivische teilweise Darstellung eines Mono- blocks,1 is a partial perspective view of a monoblock,
Fig. 2 eine Draufsicht auf den Monoblock von Fig. 1 undFig. 2 is a plan view of the monoblock of Fig. 1 and
Fig. 3 eine perspektivische Darstellung eines Seitenteiles.Fig. 3 is a perspective view of a side part.
Eine erfindungsgemäße Wärmeübertragereinheit 1 in Form eines gelöteten Ganzaluminium-Monoblocks weist einen Flachrohr-Kondensator 2, einen Kühlmittelkühler 3, welche eine Mehrzahl von in Art einer Netzstruktur mit- einander verbundenen Flachrohren und Wellrippen umfassen, und zwei einander gegenüberliegende Seitenteile 4 auf.A heat exchanger unit 1 according to the invention in the form of a soldered all-aluminum monoblock has a flat tube condenser 2, a coolant cooler 3, which comprise a plurality of flat tubes and corrugated fins connected to one another in the manner of a network structure, and two side parts 4 lying opposite one another.
Die Seitenteile 4 weisen eine Querentkopplung 10 in Form eines Dehnungsabschnittes 11 zur Entkopplung von Flachrohr-Kondensator 2 und Kühlmit- telkühler 3 und eine Längsentkopplung 20 zum Schutz der Flachrohrenden in. Form eines Dehnungsabschnittes 21 auf.The side parts 4 have a transverse decoupling 10 in the form of an expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 and a longitudinal decoupling 20 for protecting the flat tube ends in the form of an expansion section 21.
Der Dehnungsabschnitt 11 zur Entkopplung von Flachrohr-Kondensator 2 und Kühlmittelkühler 3 wird durch eine Mehrzahl von faltenartigen Sicken 12 gebildet, welche durch Durchbrüche 13 voneinander beabstandet in einerThe expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 is formed by a plurality of fold-like beads 12 which are spaced apart from one another by openings 13 in one
Linie fluchtend in Längsrichtung der Seitenteile 4 angeordnet sind. Hierbei ist der Dehnungsabschnitt 11 näher am Flachrohr-Kondensator 2 als am Kühlmittelkühler 3 angeordnet. Die Breite der Durchbrüche 13 in Längsrichtung der Seitenteile 4 ist größer als die Breite der faltenartigen Sicken 12 in Längsrichtung der Seitenteile 4, wobei die Breite der Durchbrüche 13 ca. sechsmal so groß wie die Breite der faltenartigen Sicken 12 ist. Die faltenartigen Sicken 12 sind gemäß dem vorliegenden Ausführungsbeispiel nach außen, also vom Flachrohr-Kondensator 2 und vom Kühlmittelkühler 3 weg gebogen (siehe Fig. 1).Line aligned in the longitudinal direction of the side parts 4 are arranged. Here is the expansion section 11 is arranged closer to the flat tube condenser 2 than to the coolant cooler 3. The width of the openings 13 in the longitudinal direction of the side parts 4 is greater than the width of the fold-like beads 12 in the longitudinal direction of the side parts 4, the width of the openings 13 being approximately six times the width of the fold-like beads 12. According to the present exemplary embodiment, the fold-like beads 12 are bent outwards, ie away from the flat tube condenser 2 and from the coolant cooler 3 (see FIG. 1).
Der Dehnungsabschnitt 21 zur Längsentkopplung 20 zum Schutz der Flachrohrenden wird durch einen Teil eines um ca. 90° nach außen gebogenen Randbereichs der Seitenteile 4 gebildet, welcher mit einer faltenartigen Sicke 22 versehen ist. Die Seitenteile 4 weisen einen in Querrichtung verlaufenden schlitzartigen Durchbruch 23 auf, welcher von einem Randbereich zum ge- genüberliegenden Randbereich reicht. Die faltenartigen Sicken 22 sind derart ausgebildet, dass sie aufeinander zu zeigen (siehe Fig. 2).The expansion section 21 for the longitudinal decoupling 20 for protecting the flat tube ends is formed by part of an edge region of the side parts 4 which is bent outwards by approximately 90 ° and which is provided with a fold-like bead 22. The side parts 4 have a slot-like opening 23 which runs in the transverse direction and extends from one edge region to the opposite edge region. The fold-like beads 22 are designed such that they point towards one another (see FIG. 2).
Die Sicken 12 und 22 liegen auf der außen angeordneten Seite der Seitenteile 4, so dass innen eine im wesentlichen ebene Fläche vorgesehen ist.The beads 12 and 22 lie on the outside of the side parts 4, so that an essentially flat surface is provided on the inside.
In Fig. 3 ist ein Seitenteil 100 für eine nicht gezeigte Wärmeübertragereinheit mit zwei verschiedenen Wärmeübertragern als weiteres Ausführungsbeispiel in perspektivischer Ansicht dargestellt. Das Seitenteil 100 weist ebenfalls eine Querentkopplung zwischen einem Bereich 110, der einem ersten Wär- meübertrager zugeordnet ist, und einem Bereich 120, der einem zweiten3 shows a side part 100 for a heat exchanger unit (not shown) with two different heat exchangers as a further exemplary embodiment in a perspective view. The side part 100 also has a transverse decoupling between an area 110 which is assigned to a first heat exchanger and an area 120 which is associated with a second
Wärmeübertrager zugeordnet ist, auf. Die Querentkopplung wird mittels Durchbrüchen 130 bewerkstelligt, so daß die Bereiche 110 und 120 nur durch Stege 140 miteinander verbunden sind, wobei die Stege 140 für eine verbesserte Entkopplung in gebogener Form ausgestaltet sind. Um die Bie- gesteifigkeit des Seitenteiles 100 zu erhöhen, sind Ränder 150 der Durch- brüche 130 aufgestellt, so daß die Wirkung der aufgestellten Seitenteilkanten 160 und 170 verstärkt wird.Heat exchanger is assigned to. The transverse decoupling is accomplished by means of openings 130, so that the areas 110 and 120 are connected to one another only by webs 140, the webs 140 being designed in a curved shape for improved decoupling. In order to increase the bending rigidity of the side part 100, edges 150 of the through breaks 130 set up, so that the effect of the raised side panel edges 160 and 170 is enhanced.
Für eine Längsentkopplung weist das Seitenteil 100 zusätzlich zu den Durchbrüchen 130 quer verlaufende Durchbrüche 180 auf. Halterungen 190 dienen der Montage der gesamten Wärmeübertragereinheit in ein Kraftfahrzeug und sind zur Vereinfachung einstückig mit dem Seitenteil 100 ausgebildet.For a longitudinal decoupling, the side part 100 has transverse openings 180 in addition to the openings 130. Brackets 190 are used to mount the entire heat exchanger unit in a motor vehicle and, for simplification, are formed in one piece with the side part 100.
Die Seitenteile 4 weisen eine Querentkopplung 10 in Form eines Dehnungsabschnittes 11 zur Entkopplung von Flachrohr-Kondensator 2 und Kühlmittelkühler 3 und eine Längsentkopplung 20 zum Schutz der Flachrohrenden in Form eines Dehnungsabschnittes 21 auf.The side parts 4 have a transverse decoupling 10 in the form of an expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 and a longitudinal decoupling 20 for protecting the flat tube ends in the form of an expansion section 21.
Der Dehnungsabschnitt 11 zur Entkopplung von Flachrohr-Kondensator 2 und Kühlmittelkühler 3 wird durch eine Mehrzahl von faltenartigen Sicken 12 gebildet, welche durch Durchbrüche 13 voneinander beabstandet in einer Linie fluchtend in Längsrichtung der Seitenteile 4 angeordnet sind. Hierbei ist der Dehnungsabschnitt 11 näher am Flachrohr-Kondensator 2 als am Kühl- mittelkühler 3 angeordnet. Die Breite der Durchbrüche 13 in Längsrichtung der Seitenteile 4 ist größer als die Breite der faltenartigen Sicken 12 in Längsrichtung der Seitenteile 4, wobei die Breite der Durchbrüche 13 ca. sechsmal so groß wie die Breite der faltenartigen Sicken 12 ist. Die faltenartigen Sicken 12 sind gemäß dem vorliegenden Ausführungsbeispiel nach außen, also vom Flachrohr-Kondensator 2 und vom Kühlmittelkühler 3 weg gebogen (siehe Fig. 1). BezugszeichenlisteThe expansion section 11 for decoupling the flat tube condenser 2 and the coolant cooler 3 is formed by a plurality of fold-like beads 12 which are arranged in a line in the longitudinal direction of the side parts 4, spaced apart from one another by openings 13. The expansion section 11 is arranged closer to the flat tube condenser 2 than to the coolant cooler 3. The width of the openings 13 in the longitudinal direction of the side parts 4 is greater than the width of the fold-like beads 12 in the longitudinal direction of the side parts 4, the width of the openings 13 being approximately six times the width of the fold-like beads 12. According to the present exemplary embodiment, the fold-like beads 12 are bent outwards, ie away from the flat tube condenser 2 and from the coolant cooler 3 (see FIG. 1). LIST OF REFERENCE NUMBERS
Wärmeübertragereinheit Flachrohr-Kondensator Kühlmittelkühler Seitenteil Querentkopplung Dehnungsabschnitt Sicke Durchbruch Längsentkopplung Dehnungsabschnitt Sicke Durchbruch 0 Seitenteil 0 erster Wärmeübertragerbereich 0 zweiter Wärmeübertragerbereich 0 Durchbruch für Querentkopplung 0 Steg 0 Aufstellung 0 Aufstellung 0 Aufstellung 0 Durchbruch für Längsentkopplung 0 Halterung Heat exchanger unit, flat tube condenser, coolant cooler, side part, transverse decoupling, expansion section, bead, opening, longitudinal decoupling, expansion section, beading, opening, 0, side part 0, first heat exchanger area, 0 second heat exchanger area, 0 opening for cross-decoupling, 0 web, 0 installation, 0 installation, 0 installation, 0 opening, for longitudinal decoupling, 0 holder

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Wärmeübertragereinheit mit zumindest zwei Wärmeübertragern, insbesondere für ein Kraftfahrzeug, die eine Mehrzahl von Rohren und Wellrippen aufweist, sowie mit zumindest zwei Seitenteilen (4), die die Wärmeübertragereinheit auf gegenüberliegenden Seiten einfassen, wobei wenigstens ein Seitenteil (4) wenigstens einen Dehnungsab- schnitt (11) aufweist, dadurch gekennzeichnet, dass der Dehnungsabschnitt (11) im wesentlichen in Längsrichtung des Seitenteiles (4) verläuft.1. Heat exchanger unit with at least two heat exchangers, in particular for a motor vehicle, which has a plurality of tubes and corrugated fins, and with at least two side parts (4) which surround the heat exchanger unit on opposite sides, at least one side part (4) having at least one expansion Cut (11), characterized in that the expansion section (11) extends essentially in the longitudinal direction of the side part (4).
2. Wärmeübertragereinheit nach Anspruch 1 , dadurch gekennzeichnet, dass wenigstens ein Dehnungsabschnitt (21) vorgesehen ist, der im wesentlichen in Querrichtung des Seitenteiles (4) verläuft.2. Heat exchanger unit according to claim 1, characterized in that at least one expansion section (21) is provided, which extends essentially in the transverse direction of the side part (4).
3. Wärmeübertragereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zumindest ein Durchbruch (13; 23) im Seitenteil (4) vorgesehen ist.3. Heat exchanger unit according to claim 1 or 2, characterized in that at least one opening (13; 23) is provided in the side part (4).
4. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der wenigstens eine Dehnungsabschnitt (11) durch eine oder mehrere faltenartige Sicken (12) gebildet wird. 4. Heat exchanger unit according to one of the preceding claims, characterized in that the at least one expansion section (11) is formed by one or more fold-like beads (12).
5. Wärmeübertragereinheit nach Anspruch 4, dadurch gekennzeichnet, dass die Sicken (12) durch Durchbrüche (13) voneinander getrennt sind.5. Heat exchanger unit according to claim 4, characterized in that the beads (12) are separated from one another by openings (13).
6. Wärmeübertragereinheit nach Anspruch 5, dadurch gekennzeichnet, dass die Sicken (12) miteinander fluchten.6. Heat exchanger unit according to claim 5, characterized in that the beads (12) are aligned.
7. Wärmeübertragereinheit nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Durchbrüche (13) breiter als die Sicken (12) sind.7. Heat exchanger unit according to claim 5 or 6, characterized in that the openings (13) are wider than the beads (12).
8. Wärmeübertragereinheit nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Sicken (12) nach außen geformt sind.8. Heat exchanger unit according to one of claims 4 to 7, characterized in that the beads (12) are shaped outwards.
9. Wärmeübertragereinheit nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Sicken (12) nach innen geformt sind.9. Heat exchanger unit according to one of claims 4 to 7, characterized in that the beads (12) are shaped inwards.
10. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, insbesondere nach Anspruch 2, dadurch gekennzeichnet, dass ein Randbereich des Seitenteiles (4) um ca. 90° entlang einer Längskante des Seitenteiles (4) gebogen ist und der Dehnungsabschnitt (21) durch zwei faltenartige Sicken (22) gebildet wird.10. Heat exchanger unit according to one of the preceding claims, in particular according to claim 2, characterized in that an edge region of the side part (4) is bent by approximately 90 ° along a longitudinal edge of the side part (4) and the expansion section (21) by two fold-like beads (22) is formed.
11. Wärmeübertragereinheit nach Anspruch 10, dadurch gekennzeichnet, dass die Sicken (22) aufeinander zu geformt sind.11. Heat exchanger unit according to claim 10, characterized in that the beads (22) are shaped towards each other.
12. Wärmeübertragereinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dehnungsbereiche (11 ; 21) in einem Bereich angeordnet sind, der auf der Außenseite der Seitenteile (4) angeordnet ist. 12. Heat exchanger unit according to one of the preceding claims, characterized in that the expansion regions (11; 21) are arranged in a region which is arranged on the outside of the side parts (4).
EP03724969A 2002-04-09 2003-04-07 Heat transfer unit, especially for a motor vehicle Withdrawn EP1497604A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10215624 2002-04-09
DE10215624 2002-04-09
DE10255011 2002-11-25
DE10255011A DE10255011A1 (en) 2002-04-09 2002-11-25 Heat exchanger unit, in particular for a motor vehicle
PCT/EP2003/003600 WO2003085348A1 (en) 2002-04-09 2003-04-07 Heat transfer unit, especially for a motor vehicle

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EP1497604A1 true EP1497604A1 (en) 2005-01-19

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EP (1) EP1497604A1 (en)
JP (1) JP2005522662A (en)
AU (1) AU2003227571A1 (en)
BR (1) BR0304406A (en)
WO (1) WO2003085348A1 (en)

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AU2003227571A1 (en) 2003-10-20
US20040251002A1 (en) 2004-12-16
BR0304406A (en) 2004-07-27
JP2005522662A (en) 2005-07-28
US7108050B2 (en) 2006-09-19

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