EP1139054B2 - Unit of header box and connecting tube for heat exchanger - Google Patents

Unit of header box and connecting tube for heat exchanger Download PDF

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Publication number
EP1139054B2
EP1139054B2 EP01103957A EP01103957A EP1139054B2 EP 1139054 B2 EP1139054 B2 EP 1139054B2 EP 01103957 A EP01103957 A EP 01103957A EP 01103957 A EP01103957 A EP 01103957A EP 1139054 B2 EP1139054 B2 EP 1139054B2
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EP
European Patent Office
Prior art keywords
assembly according
side walls
pipe
heat exchanger
longitudinal edge
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 - Lifetime
Application number
EP01103957A
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German (de)
French (fr)
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EP1139054B1 (en
EP1139054A1 (en
Inventor
Stéphane Avequin
Carlos Martins
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.)
Valeo Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Priority to DE60102855T priority Critical patent/DE60102855T3/en
Publication of EP1139054A1 publication Critical patent/EP1139054A1/en
Publication of EP1139054B1 publication Critical patent/EP1139054B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • 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 heat exchangers, especially for motor vehicles.
  • a manifold for heat exchanger comprising a collector plate closed by a wall so as to define a chamber into which at least one manifold opens.
  • a collector box is known from the document EP-A-718580 .
  • the collector plate which is also called a perforated plate, has a plurality of holes in which the tube ends which constitute the heat exchanger bundle are received. To these tubes are associated fins contributing to increase the heat exchange surface.
  • the header plate is closed by a wall so as to define a chamber that communicates with the tubes to allow the circulation of a fluid in the beam.
  • the aforementioned wall is provided with at least one tubing to allow entry or exit of the aforementioned fluid.
  • tubing must be shaped in a particular manner, for example bent, to present a nozzle extending in a given direction to be fitted with a flexible conduit.
  • Collector boxes of this type are already known in which the collector plate is metallic, while the wall is molded of plastic material with the tubing or pipes associated therewith.
  • the seal between the header plate and the wall is provided by means of a seal, the header plate being provided with claws folded or crimped against a peripheral rim of the wall.
  • Collector boxes of this type are also known in which the various elements are metal parts assembled together by brazing.
  • the object of the invention is in particular to overcome the aforementioned drawbacks.
  • the constituent elements of the header can be brazed in an oven, along with the rest of the heat exchanger, which significantly simplifies the manufacturing operations.
  • the two lateral flanks of the first part are generally planar and parallel to each other and are connected perpendicular to the bottom.
  • the two lateral flanks of the first part each comprise a peripheral groove for receiving a longitudinal edge of the second part. This contributes to a good temporary maintenance of the first part and the second part between them.
  • this temporary support can be provided by the fact that the two lateral flanks of the first part each comprise a series of cutouts delimiting bearing regions formed projecting from the inner side for receiving a longitudinal edge of the second part. .
  • these bearing regions are each formed by stamping the side flanks of the inner side.
  • each longitudinal edge of the second part is provided with protruding lugs adapted to engage respectively in the cuts of the lateral flanks.
  • the second lid part is defined by a strip shaped to have generatrices generally parallel to each other.
  • the two side flanks advantageously have respective extensions vis-à-vis, at least one of which is provided with an opening for the tubing.
  • the first part and the second part are each obtained by stamping and cutting a metal sheet.
  • the latter is advantageously a sheet made of a material comprising aluminum.
  • the invention in another aspect, relates to a heat exchanger comprising at least one manifold as defined above.
  • the manifold comprises a first portion 10 and a second portion 12 each formed from a metal sheet, preferably aluminum, which is shaped by conventional cutting and stamping operations.
  • the first part 10 has a bottom 14 which is generally flat and of elongated rectangular shape.
  • This bottom 14 is intended to form the collector plate, also called “plate with holes", of the manifold.
  • This bottom comprises for this purpose a plurality of spaced holes 16 of elongated shape intended to receive tubes 18 forming part of a bundle of a heat exchanger ( Figures 1 and 2 ).
  • these are flat tubes between which fins 20 are arranged in the form of corrugated inserts.
  • the sheet further comprises two lateral flanks 22 folded vis-à-vis, which are generally planar and parallel to each other. These flanks are connected substantially perpendicular to the bottom 14 by two fold lines 24 which are parallel to each other.
  • the lateral flanks 22 are of elongate shape and comprise, in their central part, respective extensions 26 and 28 arranged in facing relation and each having a "cocked hat" shape.
  • the extension 26 has an opening 30, while the extension 28 is completely closed.
  • the opening 30 is circular in shape and is intended to allow the adaptation of a tubular 32 of circular section.
  • the two lateral flanks 22 of the first portion 10 each comprise a peripheral groove 34 for receiving a longitudinal edge 38 of the second portion 12. This contributes to a good temporary retention of the first part and the second part between them.
  • the second portion 12 forming a lid is defined by a strip shaped to have generatrices generally parallel to each other.
  • the constituent elements of the header can be brazed in an oven, along with the rest of the heat exchanger, which significantly simplifies the manufacturing operations.
  • the header plate is included in the second part 52, while the bottom 54 of the first part 50 is closed and is connected to the lateral flanks 56.
  • the two parts can be achieved by conventional operations of cutting and stamping a metal sheet.
  • the temporary maintenance is provided in that the two lateral flanks 78 of the first part 72 each comprise a series of cutouts 86 delimiting bearing regions 88 formed projecting from the inner side for the reception of a longitudinal edge 90 of the second portion 74. These bearing regions 88 are each formed by stamping the side flanks 78 on the inner side.
  • Each longitudinal edge 90 of the second portion 74 is provided with lugs 92 projecting to engage respectively in the cutouts 86 of the lateral flanks 78 ( Figures 15 to 17 ).
  • the two parts can be made by conventional cutting and stamping operations.
  • the assembly After assembly of the two parts and the tubing, the assembly can be brazed in an oven, along with the rest of the heat exchanger to be manufactured.
  • the invention finds particular application to heat exchangers for motor vehicles to constitute for example a cooling radiator of the engine, or a heating radiator of the passenger compartment.

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  • 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)

Abstract

A manifold for, e.g. a motor vehicle heat exchanger, has a first part formed from a shaped metal sheet and bottom and two lateral walls folded face-to-face, at least one of which is provided with an aperture for fixing a pipe there. A second part is shaped metal sheet and able to be fitted onto the lateral walls of the first part to form a cover opposite the bottom of this first part. Either the first part or the second part has a manifold plate. The first part, the second part and the pipe are assembled by brazing.

Description

L'invention se rapporte aux échangeurs de chaleur, notamment pour véhicules automobiles.The invention relates to heat exchangers, especially for motor vehicles.

Elle concerne plus particulièrement une boîte collectrice pour échangeur de chaleur, comprenant une plaque collectrice fermée par une paroi de manière à délimiter une chambre dans laquelle débouche au moins une tubulure. Une telle boîte collectrice est connue du document EP-A-718580 .It relates more particularly to a manifold for heat exchanger, comprising a collector plate closed by a wall so as to define a chamber into which at least one manifold opens. Such a collector box is known from the document EP-A-718580 .

Dans une boîte collectrice de ce genre, la plaque collectrice, que l'on appelle aussi plaque à trous, possède une multiplicité de trous dans lesquels sont reçues les extrémités de tubes qui constituent le faisceau de l'échangeur de chaleur. A ces tubes sont associées des ailettes contribuant à augmenter la surface d'échange de chaleur.In a collector box of this type, the collector plate, which is also called a perforated plate, has a plurality of holes in which the tube ends which constitute the heat exchanger bundle are received. To these tubes are associated fins contributing to increase the heat exchange surface.

La plaque collectrice est fermée par une paroi de manière à délimiter une chambre qui communique avec les tubes pour permettre la circulation d'un fluide dans le faisceau.The header plate is closed by a wall so as to define a chamber that communicates with the tubes to allow the circulation of a fluid in the beam.

Habituellement, la paroi précitée est munie d'au moins une tubulure pour permettre l'entrée ou la sortie du fluide précité.Usually, the aforementioned wall is provided with at least one tubing to allow entry or exit of the aforementioned fluid.

La conception de ces tubulures pose de nombreux problèmes en pratique étant donné qu'elles doivent être placées en des endroits précis de la paroi en fonction des conditions édictées par l'implantation de l'échangeur de chaleur dans le véhicule considéré.The design of these pipes poses many problems in practice since they must be placed in specific locations of the wall according to the conditions imposed by the implementation of the heat exchanger in the vehicle in question.

En outre, la tubulure doit être conformée de manière particulière, par exemple coudée, pour présenter un embout s'étendant dans une direction donnée pour être emmanché avec un conduit souple.In addition, the tubing must be shaped in a particular manner, for example bent, to present a nozzle extending in a given direction to be fitted with a flexible conduit.

On connaît déjà des boîtes collectrices de ce genre dans lesquelles la plaque collectrice est métallique, tandis que la paroi est moulée en matière plastique avec la ou les tubulures qui lui sont associées.Collector boxes of this type are already known in which the collector plate is metallic, while the wall is molded of plastic material with the tubing or pipes associated therewith.

En ce cas, l'étanchéité entre la plaque collectrice et la paroi est assurée par l'intermédiaire d'un joint d'étanchéité, la plaque collectrice étant munie de griffes rabattues ou serties contre un rebord périphérique de la paroi.In this case, the seal between the header plate and the wall is provided by means of a seal, the header plate being provided with claws folded or crimped against a peripheral rim of the wall.

La réalisation d'une telle paroi avec au moins une tubulure associée nécessite des moules de formes complexes.The realization of such a wall with at least one associated tubing requires molds of complex shapes.

On connaît aussi des boîtes collectrices de ce genre dans lesquelles les différents éléments sont des pièces métalliques assemblées entre elles par brasage.Collector boxes of this type are also known in which the various elements are metal parts assembled together by brazing.

Là encore, cela pose des difficultés pour réaliser et implanter la tubulure en un endroit approprié, spécialement lorsque cette tubulure est coudée.Again, this poses difficulties to realize and implement the tubing in a suitable place, especially when this tubing is bent.

L'invention a notamment pour but de surmonter les inconvénients précités.The object of the invention is in particular to overcome the aforementioned drawbacks.

Elle propose à cet effet un ensemble d'une boîte collectrice et d'une tubulure du type défini à la revendication 1.It proposes for this purpose a set of a manifold and tubing of the type defined in claim 1.

On peut ainsi réaliser tous les éléments de la boîte collectrice, y compris la tubulure, par des pièces métalliques conformées, notamment par emboutissage, qui sont ensuite assemblées par brasage.It is thus possible to realize all the elements of the manifold, including the tubing, by shaped metal parts, particularly by stamping, which are then assembled by soldering.

Ainsi, les éléments constitutifs de la boîte collectrice pourront être brasés dans un four, en même temps que le reste de l'échangeur de chaleur, ce qui simplifie notablement les opérations de fabrication.Thus, the constituent elements of the header can be brazed in an oven, along with the rest of the heat exchanger, which significantly simplifies the manufacturing operations.

Avantageusement, les deux flancs latéraux de la première partie sont généralement plans et parallèles entre eux et se raccordent perpendiculairement au fond.Advantageously, the two lateral flanks of the first part are generally planar and parallel to each other and are connected perpendicular to the bottom.

Il est avantageux que les deux flancs latéraux de la première partie comportent chacun une rainure périphérique pour la réception d'un bord longitudinal de la seconde partie. Ceci contribue à un bon maintien provisoire de la première partie et de la seconde partie entre elles.It is advantageous that the two lateral flanks of the first part each comprise a peripheral groove for receiving a longitudinal edge of the second part. This contributes to a good temporary maintenance of the first part and the second part between them.

En variante on peut procurer ce maintien provisoire par le fait que les deux flancs latéraux de la première partie comportent chacun une série de découpes délimitant des régions d'appui formées en saillie du côté intérieur pour la réception d'un bord longitudinal de la seconde partie.As a variant, this temporary support can be provided by the fact that the two lateral flanks of the first part each comprise a series of cutouts delimiting bearing regions formed projecting from the inner side for receiving a longitudinal edge of the second part. .

De préférence, ces régions d'appui sont formées chacune par emboutissage des flancs latéraux du côté intérieur.Preferably, these bearing regions are each formed by stamping the side flanks of the inner side.

Pour contribuer au maintien, il est préférable que chaque bord longitudinal de la seconde partie soit muni d'ergots en saillie propres à s'engager respectivement dans les découpes des flancs latéraux.To contribute to the maintenance, it is preferable that each longitudinal edge of the second part is provided with protruding lugs adapted to engage respectively in the cuts of the lateral flanks.

Selon encore une autre caractéristique de l'invention, la seconde partie formant couvercle est définie par un feuillard conformé pour avoir des génératrices généralement parallèles entre elles.According to yet another characteristic of the invention, the second lid part is defined by a strip shaped to have generatrices generally parallel to each other.

Les deux flancs latéraux possèdent avantageusement des prolongements respectifs en vis-à-vis, dont l'un au moins est muni d'une ouverture pour la tubulure.The two side flanks advantageously have respective extensions vis-à-vis, at least one of which is provided with an opening for the tubing.

Dans l'invention, la première partie et la seconde partie sont obtenues chacune par emboutissage et découpage d'une feuille métallique. Cette dernière est avantageusement une feuille en une matière comprenant de l'aluminium.In the invention, the first part and the second part are each obtained by stamping and cutting a metal sheet. The latter is advantageously a sheet made of a material comprising aluminum.

Sous un autre aspect, l'invention concerne un échangeur de chaleur comprenant au moins une boîte collectrice comme défini précédemment.In another aspect, the invention relates to a heat exchanger comprising at least one manifold as defined above.

Dans la description qui suit, faite seulement à titre d'exemple, on se réfère aux dessins annexés, sur lesquels:

  • la figure 1 est une vue en perspective éclatée d'une boîte collectrice selon une première forme de réalisation de l'invention;
  • la figure 2 est une vue en perspective analogue à la figure 1 après assemblage de la boîte collectrice;
  • la figure 3 est une vue de côté correspondant à la figure 2;
  • la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3;
  • la figure 5 est une vue de dessus de la boîte collectrice de la figure 2;
  • la figure 6 est une vue en coupe selon la ligne VI-VI de la figure 5;
  • la figure 7 est une vue de côté d'une boîte collectrice, à l'état assemblé, selon une autre forme de réalisation;
  • la figure 8 est une vue en coupe selon la ligne VIII-VIII de la figure 7;
  • la figure 9 est une vue de dessus correspondant à la figure 7;
  • la figure 10 est une vue en coupe selon la ligne XI-XI de la figure 9;
  • la figure 11 est une vue de côté d'une boîte collectrice, à l'état assemblé, selon une seconde forme de réalisation de l'invention;
  • la figure 12 est une vue de dessus correspondant à la figure 11;
  • la figure 13 est une vue en coupe selon la ligne XIII-XIII de la figure 11;
  • la figure 14 est une vue en coupe selon la ligne XIV-XIV de la figure 11;
  • la figure 15 est une vue partielle en perspective de la boîte collectrice de la figure 11 avant assemblage;
  • la figure 16 représente le détail XVI, à échelle agrandie, de la figure 15; et
  • la figure 17 représente le détail de la figure 16, après assemblage.
In the description which follows, made only by way of example, reference is made to the appended drawings, in which:
  • the figure 1 is an exploded perspective view of a header box according to a first embodiment of the invention;
  • the figure 2 is a perspective view similar to the figure 1 after assembly of the collecting box;
  • the figure 3 is a side view corresponding to the figure 2 ;
  • the figure 4 is a sectional view along line IV-IV of the figure 3 ;
  • the figure 5 is a top view of the collector box of the figure 2 ;
  • the figure 6 is a sectional view along the line VI-VI of the figure 5 ;
  • the figure 7 is a side view of a collector box, in the assembled state, according to another embodiment;
  • the figure 8 is a sectional view along line VIII-VIII of the figure 7 ;
  • the figure 9 is a top view corresponding to the figure 7 ;
  • the figure 10 is a sectional view along the line XI-XI of the figure 9 ;
  • the figure 11 is a side view of a collector box, in the assembled state, according to a second embodiment of the invention;
  • the figure 12 is a top view corresponding to the figure 11 ;
  • the figure 13 is a sectional view along line XIII-XIII of the figure 11 ;
  • the figure 14 is a sectional view along line XIV-XIV of the figure 11 ;
  • the figure 15 is a partial perspective view of the collector box of the figure 11 before assembly;
  • the figure 16 represents detail XVI, on an enlarged scale, of the figure 15 ; and
  • the figure 17 represents the detail of the figure 16 , after assembly.

On se réfère d'abord à la forme de réalisation des figures 1 à 7, dans laquelle la boîte collectrice comprend une première partie 10 et une seconde partie 12 chacune formée à partir d'une feuille métallique, avantageusement en aluminium, qui est conformée par des opérations classiques de découpage et d'emboutissage.We first refer to the embodiment of the Figures 1 to 7 , in which the manifold comprises a first portion 10 and a second portion 12 each formed from a metal sheet, preferably aluminum, which is shaped by conventional cutting and stamping operations.

La première partie 10 comporte un fond 14 qui est généralement plat et de forme rectangulaire allongée. Ce fond 14 est destiné à constituer la plaque collectrice, encore appelée "plaque à trous", de la boîte collectrice. Ce fond comporte à cet effet une pluralité de trous espacés 16 de forme allongée destinés à recevoir des tubes 18 faisant partie d'un faisceau d'un échangeur de chaleur (figures 1 et 2). Dans l'exemple, il s'agit de tubes plats entre lesquels sont disposées des ailettes 20 réalisées sous la forme d'intercalaires ondulés.The first part 10 has a bottom 14 which is generally flat and of elongated rectangular shape. This bottom 14 is intended to form the collector plate, also called "plate with holes", of the manifold. This bottom comprises for this purpose a plurality of spaced holes 16 of elongated shape intended to receive tubes 18 forming part of a bundle of a heat exchanger ( Figures 1 and 2 ). In the example, these are flat tubes between which fins 20 are arranged in the form of corrugated inserts.

La feuille comprend en outre deux flancs latéraux 22 repliés en vis-à-vis, qui sont généralement plans et parallèles entre eux. Ces flancs se raccordent sensiblement perpendiculairement au fond 14 par deux lignes de pliage 24 qui sont parallèles entre elles.The sheet further comprises two lateral flanks 22 folded vis-à-vis, which are generally planar and parallel to each other. These flanks are connected substantially perpendicular to the bottom 14 by two fold lines 24 which are parallel to each other.

Les flancs latéraux 22 sont de forme allongée et comportent, dans leur partie centrale, des prolongements respectifs 26 et 28 disposés en vis-à-vis et ayant chacun une forme en "chapeau de gendarme". Dans l'exemple, le prolongement 26 comporte une ouverture 30, tandis que le prolongement 28 est complètement fermé. L'ouverture 30 est de forme circulaire et est destinée à permettre l'adaptation d'une tubulure 32 de section circulaire.The lateral flanks 22 are of elongate shape and comprise, in their central part, respective extensions 26 and 28 arranged in facing relation and each having a "cocked hat" shape. In the example, the extension 26 has an opening 30, while the extension 28 is completely closed. The opening 30 is circular in shape and is intended to allow the adaptation of a tubular 32 of circular section.

Les deux flancs latéraux 22 de la première partie 10 comportent chacun une rainure périphérique 34 pour la réception d'un bord longitudinal 38 de la seconde partie 12. Ceci contribue à un bon maintien provisoire de la première partie et de la seconde partie entre elles.The two lateral flanks 22 of the first portion 10 each comprise a peripheral groove 34 for receiving a longitudinal edge 38 of the second portion 12. This contributes to a good temporary retention of the first part and the second part between them.

La seconde partie 12 formant couvercle est définie par un feuillard conformé pour avoir des génératrices généralement parallèles entre elles.The second portion 12 forming a lid is defined by a strip shaped to have generatrices generally parallel to each other.

Ainsi, les éléments constitutifs de la boîte collectrice pourront être brasés dans un four, en même temps que le reste de l'échangeur de chaleur, ce qui simplifie notablement les opérations de fabrication.Thus, the constituent elements of the header can be brazed in an oven, along with the rest of the heat exchanger, which significantly simplifies the manufacturing operations.

Dans la forme de réalisation des figures 7 à 10, la plaque collectrice est comprise dans la seconde partie 52, tandis que le fond 54 de la première partie 50 est fermé et se raccorde aux flancs latéraux 56.In the embodiment of the Figures 7 to 10 , the header plate is included in the second part 52, while the bottom 54 of the first part 50 is closed and is connected to the lateral flanks 56.

Comme dans le cas de la forme de réalisation précédente, les deux parties peuvent être réalisées par des opérations classiques de découpage et d'emboutissage d'une feuille métallique.As in the case of the embodiment previous, the two parts can be achieved by conventional operations of cutting and stamping a metal sheet.

Dans la forme de réalisation des figures 11 à 17, le maintien provisoire est procuré par le fait que les deux flancs latéraux 78 de la première partie 72 comportent chacun une série de découpes 86 délimitant des régions d'appui 88 formées en saillie du côté intérieur pour la réception d'un bord longitudinal 90 de la seconde partie 74. Ces régions d'appui 88 sont formées chacune par emboutissage des flancs latéraux 78 du côté intérieur.In the embodiment of the Figures 11 to 17 , the temporary maintenance is provided in that the two lateral flanks 78 of the first part 72 each comprise a series of cutouts 86 delimiting bearing regions 88 formed projecting from the inner side for the reception of a longitudinal edge 90 of the second portion 74. These bearing regions 88 are each formed by stamping the side flanks 78 on the inner side.

Chaque bord longitudinal 90 de la seconde partie 74 est muni d'ergots 92 en saillie propres à s'engager respectivement dans les découpes 86 des flancs latéraux 78 (figures 15 à 17).Each longitudinal edge 90 of the second portion 74 is provided with lugs 92 projecting to engage respectively in the cutouts 86 of the lateral flanks 78 ( Figures 15 to 17 ).

On assure ainsi un maintien provisoire des deux parties 74 et 76 dans une position correcte avant brasage.This ensures a temporary hold of the two parts 74 and 76 in a correct position before soldering.

Comme dans le cas des deux formes de réalisation précédentes, les deux parties peuvent être réalisées par des opérations classiques de découpage et d'emboutissage.As in the case of the two previous embodiments, the two parts can be made by conventional cutting and stamping operations.

Après assemblage des deux parties et de la tubulure, l'ensemble peut être brasé dans un four, en même temps que le reste de l'échangeur de chaleur à fabriquer.After assembly of the two parts and the tubing, the assembly can be brazed in an oven, along with the rest of the heat exchanger to be manufactured.

On réalise ainsi une opération de brasage pendant laquelle tous les éléments de l'échangeur de chaleur sont brasés, ce qui simplifie les opérations de fabrication.Thus, a brazing operation is carried out during which all the elements of the heat exchanger are brazed, which simplifies the manufacturing operations.

L'invention trouve une application particulière aux échangeurs de chaleur pour véhicules automobiles pour constituer par exemple un radiateur de refroidissement du moteur, ou encore un radiateur de chauffage de l'habitacle.The invention finds particular application to heat exchangers for motor vehicles to constitute for example a cooling radiator of the engine, or a heating radiator of the passenger compartment.

Claims (11)

  1. Assembly of a header box and a pipe, for a heat exchanger, said header box comprising a header plate closed by a wall so as to delimit a chamber into which emerges at least said pipe, characterized in that said box consists of:
    a first part (10; 72) formed from a shaped metal sheet having only a bottom (14; 76), which comprises the header plate (14; 76), and two side walls (22; 78) folded up so as to face each other, at least one of which is provided with an opening (30; 66) in order to attach said pipe (32; 84) thereto, and
    a second part (12; 74) formed from a shaped metal sheet capable of fitting onto the side walls (22; 78) of the first part in order to form a cover on the opposite side to the bottom (14; 76) of this first part,
    and in that the first part (10; 72), the second part (12; 74) and the pipe (32; 84) are assembled by brazing.
  2. Assembly according to Claim 1, characterized in that the two side walls (22; 78) of the first part (10; 72) are generally flat and mutually parallel and adjoin the bottom (14; 76) at right angles.
  3. Assembly according to either of Claims 1 and 2, characterized in that the two side walls (22) of the first part (10) each comprise a peripheral groove (34) for receiving a longitudinal edge (38) of the second part (12).
  4. Assembly according to either of Claims 1 and 2, characterized in that the two side walls (78) of the first part (72) each comprise a series of cutouts (86) delimiting bearing regions (88), formed so as to project from the inner side, for receiving a longitudinal edge (90) of the second part (74).
  5. Assembly according to Claim 4, characterized in that the bearing regions (88) are each formed by stamping the side walls (78) on the inner side.
  6. Assembly according to either of Claims 4 and 5, characterized in that each longitudinal edge (90) of the second part (74) is provided with projecting lugs (92) capable of respectively engaging in the cutouts (86) in the side walls (78).
  7. Assembly according to one of Claims 1 to 6, characterized in that the cover-forming second part (12; 74) is defined by a strip shaped in order to have generally mutually parallel generatrices.
  8. Assembly according to one of Claims 1 to 7, characterized in that the two side walls (22) have respective extensions (26; 28) facing each other, at least one (26) of which is provided with an opening (30) for the pipe (32).
  9. Assembly according to one of Claims 1 to 8, characterized in that the first part (10; 72) and the second part (12; 74) are each obtained by stamping and cutting out a metal-sheet piece.
  10. Assembly according to Claim 9, characterized in that the first part (10; 72) and the second part (12; 74) are each obtained from a sheet made of a material comprising aluminium.
  11. Heat exchanger comprising at least one assembly of a header box and a pipe according to one of Claims 1 to 10.
EP01103957A 2000-02-24 2001-02-19 Unit of header box and connecting tube for heat exchanger Expired - Lifetime EP1139054B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE60102855T DE60102855T3 (en) 2000-02-24 2001-02-19 Assembly of end chamber and tube for heat exchangers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0002327 2000-02-24
FR0002327A FR2805606B1 (en) 2000-02-24 2000-02-24 COLLECTOR BOX WITH INTEGRATED TUBING FOR HEAT EXCHANGER

Publications (3)

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EP1139054A1 EP1139054A1 (en) 2001-10-04
EP1139054B1 EP1139054B1 (en) 2004-04-21
EP1139054B2 true EP1139054B2 (en) 2012-11-21

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EP01103957A Expired - Lifetime EP1139054B2 (en) 2000-02-24 2001-02-19 Unit of header box and connecting tube for heat exchanger

Country Status (7)

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US (2) US20010017201A1 (en)
EP (1) EP1139054B2 (en)
JP (1) JP4688310B2 (en)
AT (1) ATE265033T1 (en)
DE (1) DE60102855T3 (en)
ES (1) ES2219448T5 (en)
FR (1) FR2805606B1 (en)

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Also Published As

Publication number Publication date
EP1139054B1 (en) 2004-04-21
US20040244956A1 (en) 2004-12-09
ATE265033T1 (en) 2004-05-15
FR2805606B1 (en) 2002-07-05
JP2001280885A (en) 2001-10-10
US20010017201A1 (en) 2001-08-30
EP1139054A1 (en) 2001-10-04
ES2219448T3 (en) 2004-12-01
DE60102855D1 (en) 2004-05-27
FR2805606A1 (en) 2001-08-31
ES2219448T5 (en) 2013-03-26
DE60102855T2 (en) 2005-04-21
JP4688310B2 (en) 2011-05-25
US7077192B2 (en) 2006-07-18
DE60102855T3 (en) 2013-05-02

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