EP1150087B1 - Heat exchanger with header of reduced space requirement, in particular for vehicles - Google Patents

Heat exchanger with header of reduced space requirement, in particular for vehicles Download PDF

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Publication number
EP1150087B1
EP1150087B1 EP01109480A EP01109480A EP1150087B1 EP 1150087 B1 EP1150087 B1 EP 1150087B1 EP 01109480 A EP01109480 A EP 01109480A EP 01109480 A EP01109480 A EP 01109480A EP 1150087 B1 EP1150087 B1 EP 1150087B1
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EP
European Patent Office
Prior art keywords
heat exchanger
tubes
collars
exchanger according
collector
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
EP01109480A
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German (de)
French (fr)
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EP1150087A3 (en
EP1150087A2 (en
Inventor
Jean-Claude Lancelin
Alain Huard
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
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Valeo Thermique Moteur SA
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Application filed by Valeo Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
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Publication of EP1150087A3 publication Critical patent/EP1150087A3/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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0094—Radiators for recooling the engine coolant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0091—Radiators
    • F28D2021/0096—Radiators for space heating

Definitions

  • the invention relates to heat exchangers, especially for a motor vehicle.
  • a heat exchanger of the type comprising a finned tube bundle and a collector which has a central core, in which is arranged at least one row of holes flanked by collars for receiving the tubes of the bundle, and a peripheral groove connected to the central core by a folded edge.
  • Heat exchangers of this type are used in motor vehicles, in particular to constitute an engine cooling radiator or a radiator for the heating of the passenger compartment.
  • Such heat exchangers can be made in the form of two main types which are respectively called mechanical assembly type exchangers and brazed type exchangers.
  • the ends of the tubes are received in the collets of the header plate with the insertion of corresponding sleeves forming part of a seal. These seal sleeves are squeezed by flaring of the tubes, providing a seal.
  • the ends of the tubes are received directly in the collars of the collector plate and are brazed to the collector plate.
  • peripheral groove which surrounds the central core of the collector is connected to this central core by a folded edge which is generally made in the form of an edge substantially right that connects perpendicularly to the central core.
  • the peripheral groove is intended to receive the periphery, also called foot, a collector box.
  • the latter defines with the collector a volume that is in communication with the tubes of the beam.
  • the manifold foot squeezes a peripheral region of the seal that is received in the peripheral groove. This compression is usually obtained by crimping means, which ensures a seal.
  • the peripheral groove also receives the periphery of the header to provide a solder connection.
  • the folded edge and the collars generally extend on the same side of the central core and, until now, the region of the collars, which is closest to the folded edge, is at a distance that usually can not fall below a value of the order of 1mm.
  • this folded edge has a contour of generally rectangular shape and has in particular two longitudinal sections which extend parallel to the long sides of the collector and also parallel to the row (s) of the tubes.
  • a heat exchanger is known from FR-1.577.223.
  • the object of the invention is in particular to overcome this drawback.
  • each collar is substantially in contact with said folded edge so as to define between them a set of a minimum value.
  • the Applicant has found that, by means of a particular manufacturing method, which may for example use stamping punches, it is possible to ensure that each collar comes into substantially contact with the folded edge, which makes it possible to define a set of a minimum or even zero value.
  • the value of this game is advantageously between 0 and 1mm.
  • peripheral groove surrounds more closely the central core of the collector, which allows to significantly reduce the size.
  • the collars are advantageously made by means of stamping punches.
  • the ends of the tubes can be either received in the collets with the interposition of a seal, or be brazed in the collars.
  • the invention applies to different shapes of collars and ends of the tubes.
  • the necks and ends of the tubes may in particular have a generally circular shape, or a generally oblong shape, in particular oval or elliptical.
  • a fin is in contact with the collector in the region of the peripheral groove. This makes it possible to perform a protection function with respect to corrosion.
  • FIGS 1 and 2 show a collector 10 own part of a heat exchanger, especially for a motor vehicle.
  • This heat exchanger may constitute, for example, an engine cooling radiator or a heating radiator of the passenger compartment.
  • the collector 10 is made by stamping and stamping a metal plate which is advantageously based on aluminum.
  • This collector comprises a flat central core 12, of generally rectangular shape, in which is arranged a series of holes 14 of oblong shape, here of substantially elliptical shape, which are arranged in a row R of axis XX.
  • the largest dimension collars (which corresponds to the major axis AA of the ellipse) extends perpendicularly to the direction XX above ( Figure 2).
  • Each of the holes 14 is surrounded by a collar 16 which has the general shape of a cylinder of elliptical section.
  • the core 12 is surrounded by a peripheral groove 18 which is connected to the central core by a folded edge 20.
  • This folded edge connects perpendicular to the central core 12 and then connects, by a rounded, to a wall 22, which extends parallel to the core 12.
  • This bottom wall 22 is connected perpendicularly to an outer edge 24 which constitutes, at its free end, a crenellated edge defining a series of teeth or crimping tabs 26.
  • the folded edge 20 is connected to the collar 16 by a U-shaped folding 28 which is made such that an end region of the collar 16 is substantially in contact.
  • the folded edge 20 There is between them a game of a value d which is minimal.
  • this value d can reach a very low value which is typically between 0 and 1 mm.
  • the folded edge 20 comprises two main sections 20a and 20b which are parallel to each other and which are also parallel to the direction XX of the row. These two edges thus come into contact respectively with end regions 16a and 16b of each of the collars 16.
  • This collector is intended to constitute a heat exchanger partially shown in FIG.
  • each of the collars 16 is introduced the end 30 of a tube 32 which is part of a bundle of flat tubes and fins 34, which are traversed by the tubes.
  • the ends of the tubes are mechanically collected at the manifold via a seal 36 which is applied to the top of the manifold and which comprises a series of sleeves 38, each of which is compressed between a collar and an end of a tube.
  • This seal 36 continues with a peripheral edge 40 which is housed in the peripheral groove 18. This periphery is compressed by the foot 42 of a manifold 44.
  • the tabs 26 are intended to be folded to ensure the compression of the seal. sealing in the throat area 18.
  • peripheral groove 18 may have a different shape and generally receives the foot of the header and the latter is then secured by brazing.
  • one of the fins 34 of the beam comes into direct contact with the bottom wall 22 of the collector 10 in the region of the peripheral groove 18, which contributes to the corrosion resistance of the heat exchanger.
  • the invention can be applied to heat exchangers comprising one or more rows of tubes.
  • the ends of the tubes, as well as the corresponding collars may have different shapes, in particular a circular shape, an oblong shape, such as an oval or elliptical shape, etc.
  • the collar extend on the other side of the central core, that is to say on the side where the collecting box is located.
  • the invention finds particular application to heat exchangers for motor vehicles. It allows for heat exchangers whose collector has a small footprint, all things being equal, compared to exchangers of the prior art, which facilitates their implementation in motor vehicles.

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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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The heat exchanger has a bundle of tubes (32) with fins (34) and a collector (10) which has a central web (12), in which there are a row (R) of holes (14) bordered by flanges (16) for receiving the tube bundles. There is a peripheral groove (18) connected to a central web by a folded edge (20). Each flange is in contact with the folded edge in such a way as to have minimum play, thus reducing the size of the collector.

Description

L'invention se rapporte aux échangeurs de chaleur, notamment pour véhicule automobile.The invention relates to heat exchangers, especially for a motor vehicle.

Elle concerne tout particulièrement un échangeur de chaleur du type comprenant un faisceau de tubes à ailettes et un collecteur qui présente une âme centrale, dans laquelle est aménagée au moins une rangée de trous bordés par des collets pour la réception des tubes du faisceau, et une gorge périphérique raccordée à l'âme centrale par un bord replié.It particularly relates to a heat exchanger of the type comprising a finned tube bundle and a collector which has a central core, in which is arranged at least one row of holes flanked by collars for receiving the tubes of the bundle, and a peripheral groove connected to the central core by a folded edge.

Les échangeurs de chaleur de ce type sont utilisés dans les véhicules automobiles, notamment pour constituer un radiateur de refroidissement du moteur ou un radiateur du chauffage de l'habitacle.Heat exchangers of this type are used in motor vehicles, in particular to constitute an engine cooling radiator or a radiator for the heating of the passenger compartment.

De tels échangeurs de chaleur peuvent être réalisés sous la forme de deux types principaux que l'on appelle respectivement échangeurs du type à assemblage mécanique et échangeurs du type brasé.Such heat exchangers can be made in the form of two main types which are respectively called mechanical assembly type exchangers and brazed type exchangers.

Dans les échangeurs à assemblage mécanique, les extrémités des tubes sont reçus dans les collets de la plaque collectrice avec insertion de manchons correspondants faisant partie d'un joint d'étanchéité. Ces manchons du joint d'étanchéité sont comprimés par évasement des tubes, ce qui procure une étanchéité.In mechanical assembly heat exchangers, the ends of the tubes are received in the collets of the header plate with the insertion of corresponding sleeves forming part of a seal. These seal sleeves are squeezed by flaring of the tubes, providing a seal.

Dans les échangeurs de chaleur brasés, les extrémités des tubes sont reçues directement dans les collets de la plaque collectrice et sont brasés à cette dernière.In brazed heat exchangers, the ends of the tubes are received directly in the collars of the collector plate and are brazed to the collector plate.

La gorge périphérique qui entoure l'âme centrale du collecteur est raccordée à cette âme centrale par un bord replié qui est généralement réalisé sous la forme d'un bord sensiblement droit qui se raccorde perpendiculairement à l'âme centrale.The peripheral groove which surrounds the central core of the collector is connected to this central core by a folded edge which is generally made in the form of an edge substantially right that connects perpendicularly to the central core.

La gorge périphérique est destinée à recevoir le pourtour, encore appelé pied, d'une boîte collectrice. Cette dernière délimite avec le collecteur un volume qui est en communication avec les tubes du faisceau.The peripheral groove is intended to receive the periphery, also called foot, a collector box. The latter defines with the collector a volume that is in communication with the tubes of the beam.

Dans le cas des échangeurs de chaleur à assemblage mécanique, le pied de la boîte collectrice assure la compression d'une région périphérique du joint d'étanchéité qui est reçue dans la gorge périphérique. Cette compression est obtenue habituellement par des moyens de sertissage, ce qui garantit une étanchéité.In the case of mechanically assembled heat exchangers, the manifold foot squeezes a peripheral region of the seal that is received in the peripheral groove. This compression is usually obtained by crimping means, which ensures a seal.

Dans le cas des échangeurs de chaleur brasés, la gorge périphérique reçoit également le pourtour de la boîte collectrice pour assurer une liaison par brasage.In the case of brazed heat exchangers, the peripheral groove also receives the periphery of the header to provide a solder connection.

Dans la plupart des collecteurs connus de ce genre, le bord replié ainsi que les collets s'étendent généralement d'un même côté de l'âme centrale et, jusqu'à présent, la région des collets, qui se trouve la plus proche du bord replié, est à une distance qui, habituellement, ne peut descendre en dessous d'une valeur de l'ordre de 1mm.In most known collectors of this kind, the folded edge and the collars generally extend on the same side of the central core and, until now, the region of the collars, which is closest to the folded edge, is at a distance that usually can not fall below a value of the order of 1mm.

Dans ces conditions, il existe un espace mort entre les collets et le bord replié.Under these conditions, there is a dead space between the collars and the folded edge.

Habituellement, ce bord replié présente un contour de forme générale rectangulaire et il présente notamment deux tronçons longitudinaux qui s'étendent parallèlement aux grands côtés du collecteur et également parallèlement à la (aux) rangée(s) des tubes. Un tel échangeur de chaleur est connu du document FR-1.577.223.Usually, this folded edge has a contour of generally rectangular shape and has in particular two longitudinal sections which extend parallel to the long sides of the collector and also parallel to the row (s) of the tubes. Such a heat exchanger is known from FR-1.577.223.

Ainsi, dans le cas d'un échangeur de chaleur à une seule rangée de tubes, encore appelé échangeur mono-rang, les deux tronçons du bord replié sont toujours à une distance non négligeable des collets, ce qui augmente indûment la distance entre les deux tronçons et, par conséquent, la largeur du collecteur.Thus, in the case of a heat exchanger with a single row of tubes, also called mono-rank exchanger, the two sections of the folded edge are always at a non-negligible distance from the collars, which unduly increases the distance between the two sections and, consequently, the width of the collector.

L'invention a notamment pour but de surmonter cet inconvénient.The object of the invention is in particular to overcome this drawback.

Elle propose à cet effet un échangeur de chaleur du type défini précédemment, dans lequel chaque collet est sensiblement au contact dudit bord replié de manière à définir entre eux un jeu d'une valeur minimale.It proposes for this purpose a heat exchanger of the type defined above, wherein each collar is substantially in contact with said folded edge so as to define between them a set of a minimum value.

La Demanderesse a constaté que, moyennant un procédé de fabrication particulier, qui peut par exemple utiliser des poinçons de matriçage, il est possible de faire en sorte que chaque collet vienne sensiblement au contact du bord replié, ce qui permet de définir un jeu d'une valeur minimale, voire nulle.The Applicant has found that, by means of a particular manufacturing method, which may for example use stamping punches, it is possible to ensure that each collar comes into substantially contact with the folded edge, which makes it possible to define a set of a minimum or even zero value.

Ainsi, la valeur de ce jeu est avantageusement comprise entre 0 et 1mm.Thus, the value of this game is advantageously between 0 and 1mm.

Il en résulte que la gorge périphérique entoure plus étroitement l'âme centrale du collecteur, ce qui permet de diminuer notablement l'encombrement.As a result, the peripheral groove surrounds more closely the central core of the collector, which allows to significantly reduce the size.

Ceci constitue un avantage conséquent lorsque l'on sait que la place dévolue aux équipements des véhicules automobiles, en particulier dans le compartiment moteur, est de plus en plus réduite.This is a significant advantage when it is known that the place assigned to the equipment of motor vehicles, especially in the engine compartment, is increasingly reduced.

Les collets sont avantageusement réalisés au moyen de poinçons de matriçage.The collars are advantageously made by means of stamping punches.

Selon l'invention, les extrémités des tubes peuvent être soit reçues dans les collets avec interposition d'un joint d'étanchéité, soit être brasées dans les collets.According to the invention, the ends of the tubes can be either received in the collets with the interposition of a seal, or be brazed in the collars.

L'invention s'applique pour différentes formes de collets et d'extrémités des tubes.The invention applies to different shapes of collars and ends of the tubes.

Ainsi, les collets et les extrémités des tubes peuvent notamment avoir une forme générale circulaire, ou encore une forme générale oblongue, en particulier ovale ou elliptique.Thus, the necks and ends of the tubes may in particular have a generally circular shape, or a generally oblong shape, in particular oval or elliptical.

Selon une autre caractéristique de l'invention, une ailette est en contact avec le collecteur dans la région de la gorge périphérique. Ceci permet de réaliser une fonction de protection vis-à-vis de la corrosion.According to another characteristic of the invention, a fin is in contact with the collector in the region of the peripheral groove. This makes it possible to perform a protection function with respect to corrosion.

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 coupe transversale d'un collecteur d'un échangeur de chaleur selon l'invention;
  • la figure 2 est une vue partielle de dessus correspondant à la figure 1;
  • la figure 3 est un détail à échelle agrandie de la figure 1; et
  • la figure 4 est une vue en coupe analogue à la figure 1 après assemblage d'un faisceau de tubes et d'une boîte collectrice pour former un échangeur de chaleur.
In the description which follows, made only by way of example, reference is made to the appended drawings, in which:
  • Figure 1 is a cross-sectional view of a collector of a heat exchanger according to the invention;
  • Figure 2 is a partial top view corresponding to Figure 1;
  • Figure 3 is an enlarged detail of Figure 1; and
  • Figure 4 is a sectional view similar to Figure 1 after assembly of a bundle of tubes and a header to form a heat exchanger.

On se réfère d'abord aux figures 1 et 2 qui montrent un collecteur 10 propre à faire partie d'un échangeur de chaleur, notamment pour un véhicule automobile. Cet échangeur de chaleur peut constituer, par exemple, un radiateur de refroidissement du moteur ou un radiateur de chauffage de l'habitacle.Referring first to Figures 1 and 2 which show a collector 10 own part of a heat exchanger, especially for a motor vehicle. This heat exchanger may constitute, for example, an engine cooling radiator or a heating radiator of the passenger compartment.

Le collecteur 10 est réalisé par emboutissage et matriçage d'une plaque métallique qui est avantageusement à base d'aluminium. Ce collecteur comprend une âme centrale plane 12, de forme générale rectangulaire, dans laquelle est aménagée une série de trous 14 de forme oblongue, ici de forme sensiblement elliptique, qui sont disposés suivant une rangée R d'axe XX. Dans l'exemple, la plus grande dimension des collets (qui correspond au grand axe AA de l'ellipse) s'étend perpendiculairement à la direction XX précitée (figure 2).The collector 10 is made by stamping and stamping a metal plate which is advantageously based on aluminum. This collector comprises a flat central core 12, of generally rectangular shape, in which is arranged a series of holes 14 of oblong shape, here of substantially elliptical shape, which are arranged in a row R of axis XX. In the example, the largest dimension collars (which corresponds to the major axis AA of the ellipse) extends perpendicularly to the direction XX above (Figure 2).

Chacun des trous 14 est entouré par un collet 16 qui a la forme générale d'un cylindre de section elliptique.Each of the holes 14 is surrounded by a collar 16 which has the general shape of a cylinder of elliptical section.

L'âme 12 est entourée par une gorge périphérique 18 qui se raccorde à l'âme centrale par un bord replié 20. Ce bord replié se raccorde perpendiculairement à l'âme centrale 12 puis il se raccorde ensuite, par un arrondi, à une paroi de fond 22, laquelle s'étend parallèlement à l'âme 12. Cette paroi de fond 22 est reliée perpendiculairement à un bord externe 24 qui constitue, à son extrémité libre, un bord crénelé définissant une série de dents ou pattes de sertissage 26.The core 12 is surrounded by a peripheral groove 18 which is connected to the central core by a folded edge 20. This folded edge connects perpendicular to the central core 12 and then connects, by a rounded, to a wall 22, which extends parallel to the core 12. This bottom wall 22 is connected perpendicularly to an outer edge 24 which constitutes, at its free end, a crenellated edge defining a series of teeth or crimping tabs 26.

Comme on peut le voir plus particulièrement sur le détail de la figure 3, le bord replié 20 se raccorde au collet 16 par un pliage 28 en U qui est réalisé de telle sorte qu'une région d'extrémité du collet 16 est pratiquement au contact du bord replié 20. Il existe entre eux un jeu d'une valeur d qui est minimale. Grâce à des opérations utilisant des poinçons de matriçage, on peut s'arranger pour que le collet 16 et le bord replié 20 viennent au contact l'un de l'autre ou sensiblement au contact l'un de l'autre. Il en résulte que, de manière habituelle, cette valeur d peut atteindre une valeur très faible qui est typiquement comprise entre 0 et 1mm.As can be seen more particularly in the detail of Figure 3, the folded edge 20 is connected to the collar 16 by a U-shaped folding 28 which is made such that an end region of the collar 16 is substantially in contact. The folded edge 20. There is between them a game of a value d which is minimal. Through operations using stamping punches, it is possible to arrange for the collar 16 and the folded edge 20 to come into contact with each other or substantially in contact with each other. As a result, in the usual way, this value d can reach a very low value which is typically between 0 and 1 mm.

Comme on peut le voir en particulier sur la figure 2, le bord replié 20 comprend deux tronçons principaux 20a et 20b qui sont parallèles entre eux et qui sont également parallèles à la direction XX de la rangée. Ces deux bords viennent ainsi en contact respectivement avec des régions d'extrémités 16a et 16b de chacun des collets 16.As can be seen in particular in Figure 2, the folded edge 20 comprises two main sections 20a and 20b which are parallel to each other and which are also parallel to the direction XX of the row. These two edges thus come into contact respectively with end regions 16a and 16b of each of the collars 16.

De ce fait, il est possible de faire en sorte que la largeur L (figure 1) entre les deux tronçons 20a et 20b soit aussi faible que possible. En effet, cette valeur L est sensiblement égale à la dimension intérieure (grand axe AA) du collet (figure 2) plus quatre fois l'épaisseur de la feuille métallique dont est formé le collecteur.Therefore, it is possible to ensure that the width L (Figure 1) between the two sections 20a and 20b is also as low as possible. Indeed, this value L is substantially equal to the inner dimension (long axis AA) of the collar (Figure 2) plus four times the thickness of the metal sheet which is formed the collector.

Cela permet ainsi de réaliser un collecteur dont la largeur globale est nettement plus faible que dans la technique antérieure.This thus makes it possible to produce a collector whose overall width is much smaller than in the prior art.

On relèvera que, dans la technique antérieure, l'espace compris entre le collet et le bord replié 20 était habituellement d'au moins 1mm.It will be appreciated that in the prior art the space between the collar and the folded edge was usually at least 1 mm.

Ce collecteur est destiné à constituer un échangeur de chaleur représenté partiellement sur la figure 4.This collector is intended to constitute a heat exchanger partially shown in FIG.

Dans chacun des collets 16 est introduite l'extrémité 30 d'un tube 32 qui fait partie d'un faisceau de tubes et d'ailettes planes 34, lesquelles sont traversées par les tubes.In each of the collars 16 is introduced the end 30 of a tube 32 which is part of a bundle of flat tubes and fins 34, which are traversed by the tubes.

Dans l'exemple de la figure 4, les extrémités des tubes sont rassemblées mécaniquement au collecteur par l'intermédiaire d'un joint d'étanchéité 36 qui s'applique sur le dessus du collecteur et qui comprend une série de manchons 38 dont chacun est comprimé entre un collet et une extrémité 30 d'un tube. Ce joint 36 se poursuit par une bordure périphérique 40 qui se loge dans la gorge périphérique 18. Ce pourtour est comprimé par le pied 42 d'une boîte collectrice 44. Les pattes 26 sont destinées à être repliées pour assurer la compression du joint d'étanchéité dans la région de la gorge 18.In the example of FIG. 4, the ends of the tubes are mechanically collected at the manifold via a seal 36 which is applied to the top of the manifold and which comprises a series of sleeves 38, each of which is compressed between a collar and an end of a tube. This seal 36 continues with a peripheral edge 40 which is housed in the peripheral groove 18. This periphery is compressed by the foot 42 of a manifold 44. The tabs 26 are intended to be folded to ensure the compression of the seal. sealing in the throat area 18.

Il s'agit ici d'un assemblage du type mécanique dont la technique de réalisation est largement connue dans le domaine.This is an assembly of the mechanical type whose production technique is widely known in the field.

En variante, il est possible aussi de réaliser un assemblage brasé dans lequel les extrémités 30 des tubes sont brasées directement dans les collets 16.Alternatively, it is also possible to produce a brazed assembly in which the ends 30 of the tubes are soldered directly into the collars 16.

En ce cas, la gorge périphérique 18 peut avoir une forme différente et reçoit généralement le pied de la boîte collectrice et ce dernier est alors solidarisé par brasage.In this case, the peripheral groove 18 may have a different shape and generally receives the foot of the header and the latter is then secured by brazing.

Il est à noter qu'une des ailettes 34 du faisceau vient directement en contact avec la paroi de fond 22 du collecteur 10 dans la région de la gorge périphérique 18, ce qui contribue à la résistance à la corrosion de l'échangeur de chaleur.It should be noted that one of the fins 34 of the beam comes into direct contact with the bottom wall 22 of the collector 10 in the region of the peripheral groove 18, which contributes to the corrosion resistance of the heat exchanger.

Bien entendu, l'invention n'est pas limitée à la forme de réalisation décrite précédemment à titre d'exemple.Of course, the invention is not limited to the embodiment described above by way of example.

En particulier, l'invention peut s'appliquer à des échangeurs de chaleur comportant une ou plusieurs rangées de tubes. En outre, les extrémités des tubes, ainsi que les collets correspondants, peuvent avoir différentes formes, en particulier une forme circulaire, une forme oblongue, telle qu'une forme ovale ou elliptique, etc.In particular, the invention can be applied to heat exchangers comprising one or more rows of tubes. In addition, the ends of the tubes, as well as the corresponding collars, may have different shapes, in particular a circular shape, an oblong shape, such as an oval or elliptical shape, etc.

Egalement, il est possible de faire en sorte que le collet s'étende de l'autre côté de l'âme centrale, c'est-à-dire du côté où se situe la boîte collectrice.Also, it is possible to make the collar extend on the other side of the central core, that is to say on the side where the collecting box is located.

L'invention trouve une application particulière aux échangeurs de chaleur pour les véhicules automobiles. Elle permet de réaliser des échangeurs de chaleur dont le collecteur possède un encombrement réduit, toutes choses égales par ailleurs, par rapport aux échangeurs de la technique antérieure, ce qui facilite leur implantation dans les véhicules automobiles.The invention finds particular application to heat exchangers for motor vehicles. It allows for heat exchangers whose collector has a small footprint, all things being equal, compared to exchangers of the prior art, which facilitates their implementation in motor vehicles.

Claims (9)

  1. Heat exchanger of the type comprising a bundle of finned tubes and a header (10) which has a central web (12) in which there is formed at least one row of holes (14) bordered by collars (16) to accept the tubes (32) of the bundle, and a peripheral groove (18) comprising an end wall (22) connected to the said central web (12) by a folded-over edge (20),
    characterized in that each collar (16) is more or less in contact with the said folded-over edge (20) so that a clearance (d) of a minimal value is defined between the two.
  2. Heat exchanger according to Claim 1, characterized in that the value of the clearance (d) is between 0 and 1 mm inclusive.
  3. Heat exchanger according to one of Claims 1 and 2, characterized in that the folded-over edge (20) comprises two portions (20a, 20b) parallel to one another and to the row(s) (R) of tubes (32), and in that each of the said portions is more or less in contact with the collars (16).
  4. Heat exchanger according to one of Claims 1 to 3, characterized in that the collars (16) are produced using die-stamping punches.
  5. Heat exchanger according to one of Claims 1 to 4, characterized in that the ends (30) of the tubes (32) are housed in the collars (16) with the insertion of a sealing gasket (36).
  6. Heat exchanger according to one of Claims 1 to 4, characterized in that the ends (30) of the tubes (32) are brazed into the collars (16).
  7. Heat exchanger according to one of Claims 1 to 6, characterized in that the collars (16) and the ends (30) of the tubes (32) are of circular overall shape.
  8. Heat exchanger according to one of Claims 1 to 6, characterized in that the collars (16) and the ends (30) of the tubes (32) are of oblong overall shape, particularly of oval or elliptical shape.
  9. Heat exchanger according to one of Claims 1 to 8, characterized in that a fin (34) is in contact with the header (10) in the region of the peripheral groove (18).
EP01109480A 2000-04-27 2001-04-25 Heat exchanger with header of reduced space requirement, in particular for vehicles Expired - Lifetime EP1150087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0005414 2000-04-27
FR0005414A FR2808322B1 (en) 2000-04-27 2000-04-27 HEAT EXCHANGER WITH REDUCED SIZE COLLECTOR, PARTICULARLY FOR MOTOR VEHICLE

Publications (3)

Publication Number Publication Date
EP1150087A2 EP1150087A2 (en) 2001-10-31
EP1150087A3 EP1150087A3 (en) 2002-04-24
EP1150087B1 true EP1150087B1 (en) 2006-02-01

Family

ID=8849681

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Application Number Title Priority Date Filing Date
EP01109480A Expired - Lifetime EP1150087B1 (en) 2000-04-27 2001-04-25 Heat exchanger with header of reduced space requirement, in particular for vehicles

Country Status (7)

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EP (1) EP1150087B1 (en)
JP (1) JP2001349689A (en)
AT (1) ATE317103T1 (en)
BR (1) BR0101677B1 (en)
DE (1) DE60116916D1 (en)
FR (1) FR2808322B1 (en)
PL (1) PL347288A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849175B1 (en) * 2002-12-19 2006-01-27 Valeo Thermique Moteur Sa COLLECTOR PLATE FOR HEAT EXCHANGER AND EXCHANGER HAVING THIS COLLECTOR PLATE
FR2882428B1 (en) * 2005-02-21 2007-05-18 Valeo Systemes Thermiques HEAT EXCHANGER WITH IMPROVED COLLECTOR
FR2927411B1 (en) * 2008-02-13 2013-03-29 Valeo Systemes Thermiques MEANS FOR SEALING FOR A COLLECTOR HEAT EXCHANGER BOX
GB2460728B8 (en) * 2009-02-11 2013-04-17 Denso Marston Ltd A header plate, a heat exchanger, a method of making a header plate and a method of making a heat exchanger
CN103033072B (en) * 2012-12-26 2014-06-11 陕西宝成航空仪表有限责任公司 Fin tube type heat exchanger
JP7213350B2 (en) * 2018-11-29 2023-01-26 オエティカ シュヴァイツ アーゲー Connector sockets, connector assemblies, cooling plates, heat exchangers, battery plate assemblies, and cooling systems

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Publication number Priority date Publication date Assignee Title
CH219733A (en) * 1940-09-18 1942-02-28 Rosenblads Patenter Ab Connection of a pipe to a wall with the pipe end drawn in through the wall.
FR1577223A (en) * 1967-07-21 1969-08-08
JPS5336178B1 (en) * 1974-01-29 1978-09-30
FR2484071B1 (en) * 1980-06-05 1985-12-13 Valeo HOLE PLATE FOR A HEAT EXCHANGER WITH FLUID CIRCULATION TUBES
JPH0675927B2 (en) * 1984-12-20 1994-09-28 カルソニック株式会社 Resin tank manufacturing method
JPS61198896A (en) * 1985-02-28 1986-09-03 Canon Inc Stereoscopic display system for stereoscopic display device
FR2674322B1 (en) * 1991-03-20 1998-02-13 Valeo Thermique Moteur Sa TUBE BEAM HEAT EXCHANGER, PARTICULARLY FOR A MOTOR VEHICLE.
US5228512A (en) * 1991-04-02 1993-07-20 Modine Manufacturing Company Aluminum charge air cooler and method of making the same
FR2693546B1 (en) * 1992-07-09 1994-09-30 Valeo Thermique Moteur Sa Heat exchanger with a parallel tube bundle, in particular for a motor vehicle.
FR2742857B1 (en) * 1995-12-26 1998-01-30 Valeo Climatisation COLLECTOR PLATE FOR HEAT EXCHANGER
FR2752929B1 (en) * 1996-08-29 1998-11-13 Valeo Thermique Moteur Sa HEAT EXCHANGER, WITH FLAT COLLECTOR PROVIDED WITH A STOP, PARTICULARLY FOR A MOTOR VEHICLE

Also Published As

Publication number Publication date
PL347288A1 (en) 2001-11-05
JP2001349689A (en) 2001-12-21
EP1150087A3 (en) 2002-04-24
BR0101677A (en) 2002-02-13
FR2808322A1 (en) 2001-11-02
FR2808322B1 (en) 2002-09-06
BR0101677B1 (en) 2008-11-18
ATE317103T1 (en) 2006-02-15
EP1150087A2 (en) 2001-10-31
DE60116916D1 (en) 2006-04-13

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