EP0781973A1 - End plate for heat exchanger - Google Patents

End plate for heat exchanger Download PDF

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Publication number
EP0781973A1
EP0781973A1 EP96120351A EP96120351A EP0781973A1 EP 0781973 A1 EP0781973 A1 EP 0781973A1 EP 96120351 A EP96120351 A EP 96120351A EP 96120351 A EP96120351 A EP 96120351A EP 0781973 A1 EP0781973 A1 EP 0781973A1
Authority
EP
European Patent Office
Prior art keywords
collector plate
seal
plate according
overmolded
extends
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Withdrawn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
EP96120351A
Other languages
German (de)
French (fr)
Inventor
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 Climatisation SA
Original Assignee
Valeo Climatisation SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Climatisation SA filed Critical Valeo Climatisation SA
Publication of EP0781973A1 publication Critical patent/EP0781973A1/en
Withdrawn legal-status Critical Current

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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
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • 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

Definitions

  • the invention relates to a header plate for a heat exchanger, in particular for a heating and / or air conditioning installation of a motor vehicle.
  • collector plate of the type comprising a multiplicity of holes suitable for receiving the ends of the tubes of a bundle, as well as a peripheral groove capable of accommodating a peripheral heel of a fluid box, with the interposition of a seal.
  • the seal is produced in the form of a separate element made of rubber or the like, which is put in place during assembly of the heat exchanger to seal the connection. of the collector plate with the ends of the tubes, on the one hand, and with the fluid box, on the other hand.
  • This seal usually comprises a plate of shape adapted to that of the collector plate and having sleeves suitable for being interposed each between a hole in the collector plate and one end of the tube, as well as a peripheral bead suitable for being housed. in the peripheral groove of the collector plate and to be compressed by the peripheral heel of the fluid box.
  • the collector plate has collars which surround the holes and which each receive one end of the tube.
  • the sealing of the connection of the collector plate with each tube is ensured by the corresponding sleeve of the compressible seal, which is compressed between the end of the tube and the corresponding collar of the collector plate.
  • This compression generally results from a crimping operation applied to the end of the tube to deform it radially outwards.
  • the object of the invention is in particular to overcome the aforementioned drawbacks.
  • collector plate of the type defined in the introduction, in which the seal is overmolded on the collector plate to form with it a unitary assembly before assembly of the collector plate with the bundle tubes and with the box. fluid.
  • the seal is overmolded on the header plate, it is correctly positioned relative to the latter, which then guarantees sealing during assembly of the heat exchanger.
  • the thickness of the seal can be reduced to a minimum, or even reduced to zero in some cases. regions of the collector plate, resulting in a saving of material.
  • the overmolded seal extends over an entire face of the collector plate and has regions of different thicknesses.
  • the overmolded seal comprises an additional thickness in the form of a bead which extends in the peripheral groove. This bead is intended to be compressed by the heel of the fluid box.
  • each hole is bordered by a collar
  • the allowance surrounding the hole extends mainly on the side opposite the collar.
  • the excess thickness surrounding the hole extends mainly on the side of the fluid box.
  • the overmolded joint comprises an additional thickness in a region intended to receive one end of a partition forming part of the fluid box in order to delimit, in the latter, at least two sealed compartments, one compared to each other.
  • the sealing at the connection of the partition with the collector plate is effected by compression of the excess thickness of the joint.
  • the overmolded seal is advantageously formed from natural or synthetic rubber.
  • the invention in another aspect, relates to a heat exchanger comprising at least one collecting plate as defined above, mounted at one end of a bundle of tubes and provided with a fluid box.
  • FIGS. 1 and 2 show a manifold plate 10 fitted with an overmolded seal 12.
  • the collector plate is provided with a peripheral rim 20 which extends in a generally perpendicular direction at the bottom 14 and in a direction opposite to that of the collars 18.
  • the peripheral rim 20 is provided with teeth 22 suitable for being folded at a right angle, as will be seen below.
  • this bead 32 is formed by an additional thickness of the joint which has a thickness or height clearly greater than that of the regions 28 and 30.
  • the bead 32 occupies only a part of the section of the groove 24, that is to say that located furthest outside along the rim 20.
  • the joint has an additional thickness 34 located in the central part, this additional thickness 34 having a thickness greater than that of the regions 28 and 30, but less than that of the bead 32.
  • the extra thickness 34 ensures continuity with extra thicknesses 36 and 38 having a shape, at least partially annular, which surround the holes 16 ( Figures 1 and 2).
  • these extra thicknesses 36 and 38 each border a hole 16 and extend mainly on the side opposite the collars 18.
  • these extra thicknesses 36 and 38 have an internal diameter smaller than the internal diameter of the collets 18.
  • the seal 12 is molded onto the collector plate 10 by injection of a suitable sealing material, for example a natural or synthetic rubber, or another suitable elastomer.
  • a suitable sealing material for example a natural or synthetic rubber, or another suitable elastomer.
  • the material is injected between the collector plate 10 which acts as a mold and a counter mold (not shown).
  • the seal 12 is linked to the collecting plate 10 to form with it a unitary assembly ready to be used for the assembly of a heat exchanger.
  • the seal 12 is necessarily placed in a correct position relative to the collector plate 10.
  • the seal may have a thickness minimum, especially in regions 28 and 30, which results in a saving of material.
  • the collecting plate 10 thus equipped with the overmolded seal 12 then receives a multiplicity of tubes 40 (FIG. 3) each of which has one end 42 which is flared radially to ensure the compression of the seal, at the level of the extra thicknesses 36 and 38, and ensure tightness at the connection. Flaring of the tubes is carried out by crimping using a suitable tool, such as a pin inserted axially into the end of the tube.
  • the collecting plate 10 receives a fluid box 44, as can be seen in FIG. 4.
  • This fluid box 44 is produced by molding a plastic material and has a bottom wall 46 which terminates to a peripheral heel 48 suitable for being received in the groove 24 of the collector plate 10 to compress the bead 32 of the seal 12.
  • This heel 48 has a peripheral rib 50 intended to be received between the bead 32 and the parts 28 and 30, of lesser thickness, of the seal 12.
  • the heat exchanger thus produced can comprise another fluid box at the opposite end of the tubes 40.
  • these can consist of pin or U-shaped tubes, in which case the heat exchanger does not comprise only one fluid box.
  • the thickness of the seal is zero, which makes it possible to further increase the saving in material.
  • the heat exchanger thus produced can serve, for example, as a radiator for cooling a combustion engine. internal of a motor vehicle, or of a radiator for heating the passenger compartment of such a vehicle.

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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)

Abstract

The heat exchanger plate manifold (10) comprises several holes (16) which take the ends of a tube bundle. A peripheral groove (24) houses a peripheral end (48) of a fluid casing with an interposed sealing joint (12). The sealing joint is moulded onto the manifold plate to form with it a unit before assembly of the manifold plate with the tube bundle and with the fluid casing. The sealing joint extends over the whole surface of the manifold and has regions of different thicknesses (28,30,32,34,36,38). The sealing joint comprises an over thickness (32) in the shape of a sealing strip which extends in the peripheral groove in the manifold.

Description

L'invention concerne une plaque collectrice pour un échangeur de chaleur, en particulier pour une installation de chauffage et/ou de climatisation de véhicule automobile.The invention relates to a header plate for a heat exchanger, in particular for a heating and / or air conditioning installation of a motor vehicle.

Elle concerne plus particulièrement une plaque collectrice du type comprenant une multiplicité de trous propres à recevoir des extrémités des tubes d'un faisceau, ainsi qu'une gorge périphérique propre à loger un talon périphérique d'une boîte à fluide, avec interposition d'un joint d'étanchéité.It relates more particularly to a collector plate of the type comprising a multiplicity of holes suitable for receiving the ends of the tubes of a bundle, as well as a peripheral groove capable of accommodating a peripheral heel of a fluid box, with the interposition of a seal.

Dans les échangeurs de chaleur connus, le joint d'étanchéité est réalisé sous la forme d'un élément séparé en caoutchouc ou analogue, lequel est mis en place lors de l'assemblage de l'échangeur de chaleur pour assurer l'étanchéité du raccordement de la plaque collectrice avec les extrémités des tubes, d'une part, et avec la boîte à fluide, d'autre part.In known heat exchangers, the seal is produced in the form of a separate element made of rubber or the like, which is put in place during assembly of the heat exchanger to seal the connection. of the collector plate with the ends of the tubes, on the one hand, and with the fluid box, on the other hand.

Ce joint d'étanchéité comprend habituellement une plaque de forme adaptée à celle de la plaque collectrice et possédant des manchons propres à être interposés chacun entre un trou de la plaque collectrice et une extrémité de tube, ainsi qu'un bourrelet périphérique propre à être logé dans la gorge périphérique de la plaque collectrice et à être comprimé par le talon périphérique de la boîte à fluide.This seal usually comprises a plate of shape adapted to that of the collector plate and having sleeves suitable for being interposed each between a hole in the collector plate and one end of the tube, as well as a peripheral bead suitable for being housed. in the peripheral groove of the collector plate and to be compressed by the peripheral heel of the fluid box.

Généralement, la plaque collectrice comporte des collets qui entourent les trous et qui reçoivent chacun une extrémité de tube. En pareil cas, l'étanchéité du raccordement de la plaque collectrice avec chaque tube est assurée par le manchon correspondant du joint compressible, qui se trouve comprimé entre l'extrémité du tube et le collet correspondant de la plaque collectrice. Cette compression résulte généralement d'une opération de sertissage appliquée à l'extrémité du tube pour la déformer radialement vers l'extérieur.Generally, the collector plate has collars which surround the holes and which each receive one end of the tube. In such a case, the sealing of the connection of the collector plate with each tube is ensured by the corresponding sleeve of the compressible seal, which is compressed between the end of the tube and the corresponding collar of the collector plate. This compression generally results from a crimping operation applied to the end of the tube to deform it radially outwards.

L'un des inconvénients de cette technique antérieure réside dans le fait que l'étanchéité ne peut être assurée que si le joint d'étanchéité est parfaitement positionné sur la plaque collectrice.One of the drawbacks of this prior technique lies in the fact that the seal can only be ensured if the seal is perfectly positioned on the collector plate.

Or, comme les opérations d'assemblage se font souvent sur des chaînes automatisées, il peut arriver qu'un joint ne soit pas correctement positionné, ce qui peut être préjudiciable au bon fonctionnement de l'échangeur de chaleur.However, as the assembly operations are often done on automated chains, it may happen that a seal is not correctly positioned, which can be detrimental to the proper functioning of the heat exchanger.

Un autre inconvénient de ces échangeurs de chaleur connus est que l'épaisseur du joint d'étanchéité doit être suffisamment élevée pour lui assurer une tenue suffisante pour sa manipulation, d'où il résulte un surdimensionnement de l'épaisseur du joint d'étanchéité, et donc une utilisation importante de matière.Another drawback of these known heat exchangers is that the thickness of the seal must be high enough to provide it with sufficient strength for its handling, which results in oversizing the thickness of the seal, and therefore a significant use of material.

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 une plaque collectrice du type défini en introduction, dans laquelle le joint d'étanchéité est surmoulé sur la plaque collectrice pour former avec elle un ensemble unitaire avant assemblage de la plaque collectrice avec les tubes du faisceau et avec la boîte à fluide.To this end, it offers a collector plate of the type defined in the introduction, in which the seal is overmolded on the collector plate to form with it a unitary assembly before assembly of the collector plate with the bundle tubes and with the box. fluid.

Du fait que le joint d'étanchéité est surmoulé sur la plaque collectrice, il se trouve correctement positionné par rapport à cette dernière, ce qui garantit ensuite l'étanchéité lors de l'assemblage de l'échangeur de chaleur.Because the seal is overmolded on the header plate, it is correctly positioned relative to the latter, which then guarantees sealing during assembly of the heat exchanger.

En outre, du fait que le joint d'étanchéité est surmoulé sur la plaque collectrice, il se trouve supporté par cette dernière et il n'est donc pas nécessaire qu'il possède une tenue propre.In addition, because the seal is overmolded on the collector plate, it is supported by the latter and it is therefore not necessary that it has a clean hold.

En conséquence, l'épaisseur du joint d'étanchéité peut être réduite au minimum, voire réduite à zéro dans certaines régions de la plaque collectrice, d'où il résulte une économie de matière.As a result, the thickness of the seal can be reduced to a minimum, or even reduced to zero in some cases. regions of the collector plate, resulting in a saving of material.

Selon une autre caractéristique de l'invention, le joint d'étanchéité surmoulé s'étend sur toute une face de la plaque collectrice et présente des régions d'épaisseurs différentes.According to another characteristic of the invention, the overmolded seal extends over an entire face of the collector plate and has regions of different thicknesses.

Avantageusement, le joint d'étanchéité surmoulé comprend une surépaisseur en forme de bourrelet qui s'étend dans la gorge périphérique. Ce bourrelet est destiné à être comprimé par le talon de la boîte à fluide.Advantageously, the overmolded seal comprises an additional thickness in the form of a bead which extends in the peripheral groove. This bead is intended to be compressed by the heel of the fluid box.

Le joint d'étanchéité surmoulé comprend de préférence une surépaisseur autour de chaque trou de la plaque collectrice. cette surépaisseur est destinée à garantir l'étanchéité au niveau de la liaison entre la plaque collectrice et l'extrémité du tube passant par le trou considéré.The overmolded seal preferably comprises an allowance around each hole in the collector plate. this extra thickness is intended to guarantee sealing at the connection between the collector plate and the end of the tube passing through the hole in question.

Dans le cas où chaque trou est bordé par un collet, la surépaisseur entourant le trou s'étend principalement du côté opposé au collet.In the case where each hole is bordered by a collar, the allowance surrounding the hole extends mainly on the side opposite the collar.

En effet, il n'est généralement pas nécessaire que la surépaisseur entourant le trou s'étende également à l'intérieur du collet.Indeed, it is generally not necessary that the extra thickness surrounding the hole also extend inside the collar.

Dans le cas où le collet s'étend du côté opposé à la boîte à fluide, la surépaisseur entourant le trou s'étend principalement du côté de la boîte à fluide.In the case where the collar extends on the side opposite to the fluid box, the excess thickness surrounding the hole extends mainly on the side of the fluid box.

Selon une autre caractéristique de l'invention, le joint surmoulé comprend une surépaisseur dans une région destinée à recevoir une extrémité d'une cloison faisant partie de la boîte à fluide afin de délimiter, dans cette dernière, au moins deux compartiments étanches l'un par rapport à l'autre.According to another characteristic of the invention, the overmolded joint comprises an additional thickness in a region intended to receive one end of a partition forming part of the fluid box in order to delimit, in the latter, at least two sealed compartments, one compared to each other.

L'étanchéité au niveau du raccordement de la cloison avec la plaque collectrice s'effectue par compression de la surépaisseur du joint.The sealing at the connection of the partition with the collector plate is effected by compression of the excess thickness of the joint.

Le joint surmoulé est avantageusement formé en caoutchouc naturel ou synthétique.The overmolded seal is advantageously formed from natural or synthetic rubber.

Sous un autre aspect, l'invention concerne un échangeur de chaleur comprenant au moins une plaque collectrice telle que définie précédemment, montée à une extrémité d'un faisceau de tubes et munie d'une boîte à fluide.In another aspect, the invention relates to a heat exchanger comprising at least one collecting plate as defined above, mounted at one end of a bundle of tubes and provided with a fluid box.

Dans la description qui suit, faite à titre d'exemple, on se réfère au dessin annexé, sur lequel :

  • la figure 1 est une vue de dessus d'une plaque collectrice munie d'un joint d'étanchéité surmoulé conformément à l'invention;
  • la figure 2 est une vue en coupe, à échelle agrandie, selon la ligne II-II de la figure 1;
  • la figure 3 est un détail de la figure 2 après mise en place d'un tube; et
  • la figure 4 est une vue analogue à la figure 4 après assemblage de la plaque collectrice à des tubes d'un faisceau et à une boîte à fluide.
In the description which follows, given by way of example, reference is made to the appended drawing, in which:
  • Figure 1 is a top view of a header plate provided with a molded seal according to the invention;
  • Figure 2 is a sectional view, on an enlarged scale, along the line II-II of Figure 1;
  • Figure 3 is a detail of Figure 2 after placement of a tube; and
  • Figure 4 is a view similar to Figure 4 after assembly of the manifold to tubes of a bundle and a fluid box.

On se réfère tout d'abord aux figures 1 et 2 qui montrent une plaque collectrice 10 équipée d'un joint d'étanchéité surmoulé 12.First of all, reference is made to FIGS. 1 and 2 which show a manifold plate 10 fitted with an overmolded seal 12.

La plaque collectrice 10 est une plaque métallique, par exemple en aluminium, de forme générale rectangulaire, comportant un fond 14 au travers duquel sont ménagés une multiplicité de trous 16 bordés chacun par un collet 18. Dans l'exemple, la plaque collectrice comporte quatre rangées de trous 16, de forme circulaire, entourés chacun par un collet cylindrique circulaire 18.The collector plate 10 is a metal plate, for example of aluminum, of generally rectangular shape, comprising a bottom 14 through which are formed a multiplicity of holes 16 each bordered by a collar 18. In the example, the collector plate comprises four rows of holes 16, of circular shape, each surrounded by a circular cylindrical collar 18.

La plaque collectrice est munie d'un rebord périphérique 20 qui s'étend dans une direction généralement perpendiculaire au fond 14 et dans une direction opposée à celle des collets 18. Le rebord périphérique 20 est muni de dents 22 propres à être repliées à angle droit, comme on le verra plus loin.The collector plate is provided with a peripheral rim 20 which extends in a generally perpendicular direction at the bottom 14 and in a direction opposite to that of the collars 18. The peripheral rim 20 is provided with teeth 22 suitable for being folded at a right angle, as will be seen below.

Le rebord périphérique 20 s'étend sur tout le contour rectangulaire de la plaque collectrice 10 et délimite une gorge périphérique 24, à section en forme de U, qui s'étend sur toute le pourtour de la plaque collectrice 10.The peripheral rim 20 extends over the entire rectangular outline of the collector plate 10 and delimits a peripheral groove 24, of U-shaped section, which extends over the entire periphery of the collector plate 10.

Le joint d'étanchéité 12, qui est surmoulé sur la plaque collectrice 10, comprend un fond 26 de forme générale rectangulaire s'adaptant, lors du surmoulage, sur le fond 14 de la plaque collectrice 10. Il possède une épaisseur réduite dans des régions 28 et 30 proches de la gorge périphérique 24. Au-delà de ces régions 28 et 30, le joint d'étanchéité 12 comporte un bourrelet 32, de contour général rectangulaire, qui s'étend dans la gorge périphérique 24.The seal 12, which is overmolded on the collecting plate 10, comprises a bottom 26 of generally rectangular shape which, during overmolding, fits on the bottom 14 of the collecting plate 10. It has a reduced thickness in regions 28 and 30 close to the peripheral groove 24. Beyond these regions 28 and 30, the seal 12 comprises a bead 32, of generally rectangular outline, which extends in the peripheral groove 24.

Comme on peut le voir sur la figure 2, ce bourrelet 32 est formé par une surépaisseur du joint qui présente une épaisseur ou hauteur nettement plus importante que celle des régions 28 et 30. En outre, le bourrelet 32 n'occupe qu'une partie de la section de la gorge 24, c'est-à-dire celle située le plus à l'extérieur le long du rebord 20.As can be seen in FIG. 2, this bead 32 is formed by an additional thickness of the joint which has a thickness or height clearly greater than that of the regions 28 and 30. In addition, the bead 32 occupies only a part of the section of the groove 24, that is to say that located furthest outside along the rim 20.

Par ailleurs, le joint comporte une surépaisseur 34 située dans la partie centrale, cette surépaisseur 34 possédant une épaisseur supérieure à celle des régions 28 et 30, mais inférieure à celle du bourrelet 32.Furthermore, the joint has an additional thickness 34 located in the central part, this additional thickness 34 having a thickness greater than that of the regions 28 and 30, but less than that of the bead 32.

La surépaisseur 34 assure la continuité avec des surépaisseurs 36 et 38 ayant une forme, au moins en partie annulaire, qui entourent les trous 16 (figures 1 et 2).The extra thickness 34 ensures continuity with extra thicknesses 36 and 38 having a shape, at least partially annular, which surround the holes 16 (Figures 1 and 2).

Comme on le voit mieux sur la figure 2, ces surépaisseurs 36 et 38 bordent chacune un trou 16 et s'étendent principalement du côté opposé aux collets 18. En outre, ces surépaisseurs 36 et 38 ont un diamètre interne inférieur au diamètre interne des collets 18.As best seen in FIG. 2, these extra thicknesses 36 and 38 each border a hole 16 and extend mainly on the side opposite the collars 18. In addition, these extra thicknesses 36 and 38 have an internal diameter smaller than the internal diameter of the collets 18.

Le joint d'étanchéité 12 est surmoulé sur la plaque collectrice 10 par injection d'un matériau d'étanchéité approprié, par exemple d'un caoutchouc naturel ou synthétique, ou d'un autre élastomère convenable. L'injection du matériau s'effectue entre la plaque collectrice 10 qui joue le rôle de moule et un contre-moule (non représenté).The seal 12 is molded onto the collector plate 10 by injection of a suitable sealing material, for example a natural or synthetic rubber, or another suitable elastomer. The material is injected between the collector plate 10 which acts as a mold and a counter mold (not shown).

Ainsi, le joint d'étanchéité 12 se trouve lié à la plaque collectrice 10 pour former avec elle un ensemble unitaire prêt à être utilisé pour l'assemblage d'un échangeur de chaleur.Thus, the seal 12 is linked to the collecting plate 10 to form with it a unitary assembly ready to be used for the assembly of a heat exchanger.

Dans cet ensemble unitaire, le joint d'étanchéité 12 se trouve nécessairement placé dans une position correcte par rapport à la plaque collectrice 10. De plus, du fait que le joint est supporté et soutenu par la plaque collectrice 10, il peut présenter une épaisseur minimale, notamment dans les régions 28 et 30, d'où il résulte une économie de matière.In this unitary assembly, the seal 12 is necessarily placed in a correct position relative to the collector plate 10. In addition, because the seal is supported and supported by the collector plate 10, it may have a thickness minimum, especially in regions 28 and 30, which results in a saving of material.

Cette économie de matière résulte également du fait qu'il n'est pas nécessaire que le joint d'étanchéité comporte, comme auparavant, des manchons venant se placer à l'intérieur des collets de la plaque collectrice.This saving in material also results from the fact that it is not necessary for the seal to comprise, as before, sleeves coming to be placed inside the collars of the collector plate.

La plaque collectrice 10 ainsi équipée du joint surmoulé 12 reçoit ensuite une multiplicité de tubes 40 (figure 3) dont chacun possède une extrémité 42 qui est évasée radialement pour assurer la compression du joint d'étanchéité, au niveau des surépaisseurs 36 et 38, et garantir l'étanchéité au niveau du raccordement. L'évasage des tubes est effectué par sertissage au moyen d'un outil approprié, tel qu'une broche introduite axialement dans l'extrémité du tube.The collecting plate 10 thus equipped with the overmolded seal 12 then receives a multiplicity of tubes 40 (FIG. 3) each of which has one end 42 which is flared radially to ensure the compression of the seal, at the level of the extra thicknesses 36 and 38, and ensure tightness at the connection. Flaring of the tubes is carried out by crimping using a suitable tool, such as a pin inserted axially into the end of the tube.

Après mise en place des tubes, la plaque collectrice 10 reçoit une boîte à fluide 44, comme on le voit sur la figure 4. Cette boîte à fluide 44 est réalisée par moulage d'une matière plastique et comporte une paroi de fond 46 qui aboutit à un talon périphérique 48 propre à venir se loger dans la gorge 24 de la plaque collectrice 10 pour comprimer le bourrelet 32 du joint d'étanchéité 12. Ce talon 48 comporte une nervure périphérique 50 destinée à venir se loger entre le bourrelet 32 et les parties 28 et 30, de moindre épaisseur, du joint d'étanchéité 12.After the tubes have been put in place, the collecting plate 10 receives a fluid box 44, as can be seen in FIG. 4. This fluid box 44 is produced by molding a plastic material and has a bottom wall 46 which terminates to a peripheral heel 48 suitable for being received in the groove 24 of the collector plate 10 to compress the bead 32 of the seal 12. This heel 48 has a peripheral rib 50 intended to be received between the bead 32 and the parts 28 and 30, of lesser thickness, of the seal 12.

Par ailleurs, la boîte à fluide 44 comporte une cloison interne 52 terminée par une extrémité 54 propre à assurer la compression du joint d'étanchéité 12, dans la région de la surépaisseur centrale 26. Lorsque la boîte à fluide 44 est correctement positionnée par rapport à la plaque collectrice 10, il suffit d'assurer une compression sur l'ensemble de la plaque collectrice pour comprimer le joint d'étanchéité 12. Ensuite, il suffit de replier les pattes 22 du rebord 20, (comme montré par les flèches de la figure 4) pour assurer la solidarisation de la boîte à fluide 44 avec la plaque collectrice 10. Ceci assure automatiquement l'étanchéité au niveau du raccordement de la boîte à fluide 44 et de la plaque collectrice 10. Lorsque la cloison 52 vient comprimer le joint 12 dans sa surépaisseur 26, cela permet de délimiter deux compartiments 56 et 58, étanches l'un par rapport à l'autre, à l'intérieur de la boîte à fluide 44, servant à l'entrée et à la sortie d'un fluide caloporteur.Furthermore, the fluid box 44 has an internal partition 52 terminated by an end 54 suitable for ensuring the compression of the seal 12, in the region of the central excess thickness 26. When the fluid box 44 is correctly positioned relative to to the collector plate 10, it suffices to ensure compression on the whole of the collector plate to compress the seal 12. Then, it suffices to fold the tabs 22 of the flange 20, (as shown by the arrows of Figure 4) to secure the fluid box 44 with the manifold plate 10. This automatically seals at the connection of the fluid box 44 and the manifold plate 10. When the partition 52 compresses the joint 12 in its extra thickness 26, this makes it possible to delimit two compartments 56 and 58, sealed relative to each other, inside the fluid box 44, serving for the entry and the outlet of a heat transfer fluid.

L'échangeur de chaleur ainsi réalisé peut comporter une autre boîte à fluide à l'extrémité opposée des tubes 40. En variante, ceux-ci peuvent être constitués par des tubes en épingle ou en U, auquel cas l'échangeur de chaleur ne comporte qu'une seule boîte à fluide.The heat exchanger thus produced can comprise another fluid box at the opposite end of the tubes 40. As a variant, these can consist of pin or U-shaped tubes, in which case the heat exchanger does not comprise only one fluid box.

Bien entendu, l'invention n'est pas limitée à la forme de réalisation représentée sur les dessins et elle s'étend à d'autres variantes.Of course, the invention is not limited to the embodiment shown in the drawings and it extends to other variants.

Il est possible notamment de prévoir que, dans certaines régions, l'épaisseur du joint d'étanchéité soit nulle, ce qui permet d'augmenter encore plus l'économie de matière.It is in particular possible to provide that, in certain regions, the thickness of the seal is zero, which makes it possible to further increase the saving in material.

L'échangeur de chaleur ainsi réalisé peut servir par exemple de radiateur pour le refroidissement d'un moteur à combustion interne de véhicule automobile, ou de radiateur de chauffage de l'habitacle d'un tel véhicule.The heat exchanger thus produced can serve, for example, as a radiator for cooling a combustion engine. internal of a motor vehicle, or of a radiator for heating the passenger compartment of such a vehicle.

Claims (9)

Plaque collectrice pour échangeur de chaleur, comprenant une multiplicité de trous (16) propres à recevoir des extrémités (42) des tubes (40) d'un faisceau, ainsi qu'une gorge périphérique (24) propre A loger un talon périphérique (48) d'une boîte à fluide (44) avec interposition d'un joint d'étanchéité (12),
caractérisée en ce que le joint d'étanchéité (12) est surmoulé sur la plaque collectrice (10) pour former avec elle un ensemble unitaire avant assemblage de la plaque collectrice (10) avec les tubes (40) du faisceau et avec la boîte à fluide (44).Collector plate for heat exchanger, comprising a multiplicity of holes (16) adapted to receive the ends (42) of the tubes (40) of a bundle, as well as a peripheral groove (24) suitable for accommodating a peripheral heel (48 ) a fluid box (44) with the interposition of a seal (12),
characterized in that the seal (12) is overmolded on the collector plate (10) to form with it a unitary assembly before assembly of the collector plate (10) with the tubes (40) of the bundle and with the box fluid (44). Plaque collectrice selon la revendication 1, caractérisée en ce que le joint d'étanchéité surmoulé (12) s'étend sur toute une face de la plaque collectrice (10) et présente des régions (28, 30, 32, 34, 36, 38) d'épaisseurs différentes.Collector plate according to claim 1, characterized in that the overmolded seal (12) extends over an entire face of the collector plate (10) and has regions (28, 30, 32, 34, 36, 38 ) of different thicknesses. Plaque collectrice selon l'une des revendications 1 et 2, caractérisée en ce que le joint d'étanchéité surmoulé (12) comprend une surépaisseur (32) en forme de bourrelet qui s'étend dans la gorge périphérique (24) de la plaque collectrice (10).Collector plate according to either of Claims 1 and 2, characterized in that the overmolded seal (12) comprises a bead-shaped excess thickness (32) which extends in the peripheral groove (24) of the collector plate (10). Plaque collectrice selon l'une des revendications 1 à 3, caractérisée en ce que le joint d'étanchéité surmoulé (12) comprend une surépaisseur (36, 38) autour de chaque trou (16).Collector plate according to one of claims 1 to 3, characterized in that the overmolded seal (12) comprises an additional thickness (36, 38) around each hole (16). Plaque collectrice selon la revendication 4, dans laquelle chaque trou (16) est bordé par un collet (18), caractérisée en ce que la surépaisseur (36, 38) entourant le trou (16) s'étend principalement du côté opposé au collet (18).Collector plate according to claim 4, in which each hole (16) is bordered by a collar (18), characterized in that the additional thickness (36, 38) surrounding the hole (16) extends mainly on the side opposite the collar ( 18). Plaque collectrice selon la revendication 5, dans laquelle le collet (18) s'étend du côté opposé à la boîte à fluide (44), caractérisée en ce que la surépaisseur (36, 38) entourant le trou (16) s'étend principalement du côté de la boîte à fluide (44).Collector plate according to claim 5, in which the collar (18) extends on the side opposite to the canister. fluid (44), characterized in that the extra thickness (36, 38) surrounding the hole (16) extends mainly on the side of the fluid box (44). Plaque collectrice selon l'une des revendications 1 à 6, caractérisée en ce que le joint d'étanchéité surmoulé (12) comprend une surépaisseur (26) dans une région du joint destinée à recevoir une extrémité (54) d'une cloison (52) faisant partie de la boîte à fluide (44), afin de délimiter dans cette dernière au moins deux compartiments (56, 58) étanches l'un par rapport à l'autre.Collector plate according to one of claims 1 to 6, characterized in that the overmolded seal (12) comprises an additional thickness (26) in a region of the seal intended to receive one end (54) of a partition (52 ) forming part of the fluid box (44), in order to delimit in the latter at least two compartments (56, 58) sealed relative to one another. Plaque collectrice selon l'une des revendications 1 à 7, caractérisée en ce que le joint d'étanchéité surmoulé (12) est en caoutchouc naturel ou synthétique.Collector plate according to one of claims 1 to 7, characterized in that the overmolded seal (12) is made of natural or synthetic rubber. Echangeur de chaleur comprenant au moins une plaque collectrice selon l'une des revendications 1 à 8, montée à une extrémité d'un faisceau de tubes (40) et munie d'une boîte à fluide (44).Heat exchanger comprising at least one header plate according to one of claims 1 to 8, mounted at one end of a bundle of tubes (40) and provided with a fluid box (44).
EP96120351A 1995-12-26 1996-12-18 End plate for heat exchanger Withdrawn EP0781973A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9515496A FR2742857B1 (en) 1995-12-26 1995-12-26 COLLECTOR PLATE FOR HEAT EXCHANGER
FR9515496 1995-12-26

Publications (1)

Publication Number Publication Date
EP0781973A1 true EP0781973A1 (en) 1997-07-02

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ID=9485960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96120351A Withdrawn EP0781973A1 (en) 1995-12-26 1996-12-18 End plate for heat exchanger

Country Status (4)

Country Link
EP (1) EP0781973A1 (en)
JP (1) JPH1018844A (en)
KR (1) KR970047765A (en)
FR (1) FR2742857B1 (en)

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* Cited by examiner, † Cited by third party
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EP2177793A1 (en) * 2008-10-17 2010-04-21 Ab Skf Device
CN103334828A (en) * 2013-06-13 2013-10-02 浙江银轮机械股份有限公司 Main board for connecting two ends of cooling pipe in intercooler
CN103808194A (en) * 2014-01-24 2014-05-21 江苏通盛换热器有限公司 Heat exchanger
CN105508021A (en) * 2014-09-22 2016-04-20 泰安鼎鑫冷却器有限公司 Upper reverse punched flange and lower revere punched hole double mainboard for automobile heat exchanger
CN106337725A (en) * 2016-11-02 2017-01-18 宁波沃特汽车部件有限公司 Novel intercooler main board

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FR2808322B1 (en) * 2000-04-27 2002-09-06 Valeo Thermique Moteur Sa HEAT EXCHANGER WITH REDUCED SIZE COLLECTOR, PARTICULARLY FOR MOTOR VEHICLE
JP4481426B2 (en) * 2000-04-28 2010-06-16 株式会社ティラド Heat exchanger tank structure
FR2810730B1 (en) * 2000-06-21 2003-09-26 Valeo Thermique Moteur Sa HEAT EXCHANGER, ESPECIALLY FOR MOTOR VEHICLES
US7413173B2 (en) * 2004-09-10 2008-08-19 Ric Investments, Llc Molded water chamber base plate for use in a humidifier and ventilator assembly
KR20080027066A (en) * 2006-09-22 2008-03-26 한라공조주식회사 Radiator
JP5083120B2 (en) * 2008-08-25 2012-11-28 ダイキン工業株式会社 Condenser
CN106194400B (en) * 2016-08-30 2019-11-26 天津三电汽车空调有限公司 Intercooler mainboard structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1188981A (en) * 1967-02-01 1970-04-22 Marston Radiators Ltd Methods for Making Heat Exchangers.
FR2034351A1 (en) * 1969-03-19 1970-12-11 Chausson Usines Sa Cooling radiators for vehicles manufac - ture
FR2668095A1 (en) * 1990-10-18 1992-04-24 Tabur Caoutchouc Method for the overmoulding of at least one leakproof seal on a component, implementing tool and component fitted with such a seal
US5246065A (en) * 1990-12-21 1993-09-21 Cadillac Rubber & Plastics, Inc. Heat exchanger tank incorporating an overmolded gasket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1188981A (en) * 1967-02-01 1970-04-22 Marston Radiators Ltd Methods for Making Heat Exchangers.
FR2034351A1 (en) * 1969-03-19 1970-12-11 Chausson Usines Sa Cooling radiators for vehicles manufac - ture
FR2668095A1 (en) * 1990-10-18 1992-04-24 Tabur Caoutchouc Method for the overmoulding of at least one leakproof seal on a component, implementing tool and component fitted with such a seal
US5246065A (en) * 1990-12-21 1993-09-21 Cadillac Rubber & Plastics, Inc. Heat exchanger tank incorporating an overmolded gasket

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2177793A1 (en) * 2008-10-17 2010-04-21 Ab Skf Device
US8434628B2 (en) 2008-10-17 2013-05-07 Aktiebolaget Skf Cover with integral seal
RU2519306C2 (en) * 2008-10-17 2014-06-10 Аб Скф Cap
CN103334828A (en) * 2013-06-13 2013-10-02 浙江银轮机械股份有限公司 Main board for connecting two ends of cooling pipe in intercooler
CN103334828B (en) * 2013-06-13 2015-09-23 浙江银轮机械股份有限公司 The mainboard at cooling tube two end part is connected in intercooler
CN103808194A (en) * 2014-01-24 2014-05-21 江苏通盛换热器有限公司 Heat exchanger
CN105508021A (en) * 2014-09-22 2016-04-20 泰安鼎鑫冷却器有限公司 Upper reverse punched flange and lower revere punched hole double mainboard for automobile heat exchanger
CN105508021B (en) * 2014-09-22 2018-07-06 泰安鼎鑫冷却器有限公司 Automotive heat exchanger uses the double mainboards of reversed punched holes type under reversed piercing and flanging
CN106337725A (en) * 2016-11-02 2017-01-18 宁波沃特汽车部件有限公司 Novel intercooler main board

Also Published As

Publication number Publication date
JPH1018844A (en) 1998-01-20
KR970047765A (en) 1997-07-26
FR2742857B1 (en) 1998-01-30
FR2742857A1 (en) 1997-06-27

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