EP2455697B1 - Manifold block and corresponding heat exchanger - Google Patents

Manifold block and corresponding heat exchanger Download PDF

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Publication number
EP2455697B1
EP2455697B1 EP11189688.2A EP11189688A EP2455697B1 EP 2455697 B1 EP2455697 B1 EP 2455697B1 EP 11189688 A EP11189688 A EP 11189688A EP 2455697 B1 EP2455697 B1 EP 2455697B1
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EP
European Patent Office
Prior art keywords
cover
sealing means
header box
box according
header
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EP11189688.2A
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German (de)
French (fr)
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EP2455697A1 (en
Inventor
Christian Riondet
Jean-Marc Lesueur
Alan Day
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Priority to PL11189688T priority Critical patent/PL2455697T3/en
Publication of EP2455697A1 publication Critical patent/EP2455697A1/en
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Publication of EP2455697B1 publication Critical patent/EP2455697B1/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
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators

Definitions

  • the invention relates to a manifold for a heat exchanger, in particular for a motor vehicle.
  • the invention also relates to corresponding heat exchangers.
  • such a heat exchanger comprises a bundle of tubes and fins interposed between the tubes, and a header.
  • This manifold comprises at least two parts: a header plate receiving the ends of the tubes and a cover which is fixed on the header plate to close the manifold by providing the compression of a sealing means.
  • the header plate has a groove or groove for placing and positioning the sealing means. Then, the cover is positioned on the sealing means and the cover is attached to the header plate to close the header.
  • flat collector plates having no groove or groove are known, in particular to facilitate the positioning and the holding in place of the seal.
  • flat collector plate means that this collector plate extends along a single flat surface, with the exception of collars conventionally protruding to receive the ends of the tubes. In particular, at its periphery, the collecting plate therefore has no groove or the like, generally used to house the sealing means.
  • this solution requires a foot cover to maintain in position the sealing means, however, this foot cover is relatively wide which increases the width of the collector box.
  • the cover foot in order to properly compress and maintain in position the sealing means, the cover foot must be provided wider than the sealing means. Thus, the cover foot completely crushes the sealing means when the fixing of the cover on the header plate ensuring a seal.
  • the document FR2927414 shows a heat exchanger collector box with a flat collector plate and a cover foot having a protruding portion which partially crushes the seal continuously over the entire length of said collector box.
  • the document US4997035 shows a collector box cover whose lid foot has an alternation of recesses and protuberances, the protuberances of which are arranged opposite the openings of the collector plate, said collector plate also having a groove in which is placed the sealing means.
  • the invention therefore aims to provide a manifold whose collector plate is of the type without groove or groove, and the maintenance of the seal is ensured while reducing the width of the manifold.
  • the subject of the invention is a collecting box for a heat exchanger comprising a substantially flat collector plate having openings for the passage of a plurality of heat exchange tubes, a sealing means disposed on the contour peripheral of the collector plate, and a cover comprising a peripheral cover foot closing said manifold by compressing the sealing means, characterized in that the cover foot has a substantially crenellated shape with an alternation of recesses and protuberances extending axially towards the header plate, said recesses being arranged opposite the openings of the header plate to receive the ends of said tubes so as to maintain the sealing means between said tubes at the assembly, and in that that the width of the cover foot is less than or equal to the width of the compressed sealing means.
  • the invention also relates to a brazed heat exchanger, in particular for motor vehicles, comprising a bundle of heat exchange tubes whose ends are respectively fixed to two manifolds, as defined above.
  • the invention also relates to a heat exchanger, in particular for motor vehicles, comprising a bundle of heat exchange tubes whose ends are respectively fixed to two manifolds, the elements constituting said manifold are mechanically fixed to each other , the two manifolds being as defined above.
  • the invention relates to a heat exchanger for a motor vehicle, in particular for cooling the engine coolant.
  • the invention applies for a brazed heat exchanger.
  • the invention can also be applied for a mechanical assembly heat exchanger.
  • a manifold 1 for heat exchanger comprising a beam formed of a multiplicity of tubes 3 (cf. figures 2,3 ), for example aluminum, arranged in one or more rows of tubes. Only one end of a tube 3 is visible on the Figures 2 and 3 , this end lying in the background on the figure 2 .
  • cover foot is understood to mean the lower part of the cover 10 pressing against the seal 9 and which cooperates with the collector plate 5 to be fixed, for example by means of crimping tabs 12 present on the periphery or around the collecting plate 5 and which are folded during crimping on the cover 10.
  • the collecting plate 5 for example made of aluminum, has raised or folded edges 5a making it possible to define a housing for the seal 9 in the same plane as the openings 7.
  • the crimping tabs 12 are provided on these raised edges 5a of the collector plate 5 to be crimped on the edges of the cover 10.
  • the seal 9 (shown schematically and simplified) is disposed on the peripheral contour of the header plate 5 between the foot of the lid 11 and the collector plate 5. According to the embodiment described, the seal 9 is arranged to be in contact with the tubes 3.
  • the seal 9 may have a shape complementary to the shape of the cover foot 11 and is always present between the cover foot 11 and the collector plate 5. There is therefore no direct contact between the cover foot 11 and the collector plate 5.
  • the lid 10 has a generally vaulted general shape.
  • the cover foot 11 has a width L, L 1 at most equal to the width L ', L 1 ' of the seal 9.
  • the gain in width of the manifold 1 is noticeable, while improving the connection between the cover 10 and the header plate 5, in particular the seal.
  • width of the seal the width of the latter at rest after elastic deformation due to the compression of the seal 9 by the cover foot 11.
  • cover foot 11 has a substantially crenellated shape visible on the Figures 1 and 4 .
  • This crenellated form is formed on the long sides of the cover foot 11, for example on just a thickness e of the cover foot 11 (see figure 2 ) and in the continuity of the roof vault 10. This crenellated form is here made on the inside of the lid 10.
  • cover foot 11 is understood to mean the lower part of the cover 10, the axial protuberances 15 including pressing against the seal 9.
  • the recesses 13 are opposite the openings 7 of the plate 5 and therefore of the ends of the tubes 3 when they are assembled to the manifold 1, so as to maintain the seal 9 between the tubes 3 .
  • protuberances 15 are on both sides of these openings 7 and therefore tubes 3 to the assembly of the heat exchanger (see Figures 2 and 3 ). There is therefore no protuberance 15 at the tubes 3 of the assembled exchanger.
  • each protuberance 15 has a height h less than the height h 'of the seal 9, so that there is no direct contact between the cover foot 11 and the collector plate 5.
  • the protruding portion is measured here with respect to a recess 13 as seen in FIG. figure 4 .
  • the protuberances may respectively have an outer contour 17, that is to say the outer side of the lid 10, having a substantially rounded shape. This avoids damage to the seal 9 during assembly of the manifold 1.
  • any other form of the outer contour 17 of the protuberances 15 may be provided which reduces the risk of damaging the seal 9 during its compression.
  • the tube bundle 3 and the collector plate 5 are brazed together, then the lid 10 is crimped onto the collector plate 5, in particular using the straps of FIG. crimping, with the seal 9 interposed between the cover foot 11 and the collector plate 5.

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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)

Description

L'invention concerne une boîte collectrice pour échangeur de chaleur, en particulier pour véhicule automobile.The invention relates to a manifold for a heat exchanger, in particular for a motor vehicle.

L'invention concerne aussi des échangeurs de chaleur correspondants.The invention also relates to corresponding heat exchangers.

On connait déjà des échangeurs de chaleur utilisés dans les véhicules automobiles, par exemple pour refroidir le liquide de refroidissement du moteur.There are already known heat exchangers used in motor vehicles, for example to cool the engine coolant.

Généralement, un tel échangeur de chaleur comprend un faisceau de tubes et d'ailettes intercalées entre les tubes, et une boîte collectrice. Cette boîte collectrice comprend au moins deux parties : une plaque collectrice recevant les extrémités des tubes et un couvercle venant se fixer sur la plaque collectrice pour fermer la boîte collectrice en assurant la compression d'un moyen d'étanchéité.Generally, such a heat exchanger comprises a bundle of tubes and fins interposed between the tubes, and a header. This manifold comprises at least two parts: a header plate receiving the ends of the tubes and a cover which is fixed on the header plate to close the manifold by providing the compression of a sealing means.

Selon une solution connue, la plaque collectrice comporte une gorge ou rainure destinée à placer et positionner le moyen d'étanchéité. Ensuite, le couvercle est positionné sur le moyen d'étanchéité puis le couvercle est fixé sur la plaque collectrice pour fermer la boîte collectrice.According to a known solution, the header plate has a groove or groove for placing and positioning the sealing means. Then, the cover is positioned on the sealing means and the cover is attached to the header plate to close the header.

En variante, on connaît des plaques collectrices planes ne disposant pas de gorge ou rainure pour faciliter notamment le positionnement et le maintien en place du joint d'étanchéité.In a variant, flat collector plates having no groove or groove are known, in particular to facilitate the positioning and the holding in place of the seal.

On entend par l'expression « plaque collectrice plane », le fait que cette plaque collectrice s'étend suivant une surface unique plane, à l'exception de collets classiquement protubérants pour recevoir les extrémités des tubes. En particulier, au niveau de sa périphérie la plaque collectrice ne présente donc aucune gorge ou analogue, généralement utilisée pour loger le moyen d'étanchéité.The term "flat collector plate" means that this collector plate extends along a single flat surface, with the exception of collars conventionally protruding to receive the ends of the tubes. In particular, at its periphery, the collecting plate therefore has no groove or the like, generally used to house the sealing means.

Généralement cette solution nécessite un pied de couvercle pour maintenir en position le moyen d'étanchéité, cependant ce pied de couvercle est relativement large ce qui augmente d'autant la largeur de la boîte collectrice.Generally this solution requires a foot cover to maintain in position the sealing means, however, this foot cover is relatively wide which increases the width of the collector box.

En effet, afin de pouvoir comprimer correctement et maintenir en position le moyen d'étanchéité, le pied de couvercle doit être prévu plus large que le moyen d'étanchéité. Ainsi, le pied de couvercle écrase complètement le moyen d'étanchéité lors de la fixation du couvercle sur la plaque collectrice en assurant une étanchéité.Indeed, in order to properly compress and maintain in position the sealing means, the cover foot must be provided wider than the sealing means. Thus, the cover foot completely crushes the sealing means when the fixing of the cover on the header plate ensuring a seal.

Par exemple, le document FR2927414 montre une boîte collectrice d'échangeur de chaleur avec une plaque collectrice plane et un pied de couvercle présentant une partie protubérante qui écrase partiellement le joint d'étanchéité de manière continue sur toute la longueur de ladite boîte collectrice. Le document US4997035 montre un couvercle de boîte collectrice dont le pied de couvercle présente une alternance de creux et de protubérances, dont les protubérances sont agencées en vis-à-vis des ouvertures de la plaque collectrice, ladite plaque collectrice présentant également une gorge dans laquelle est placé le moyen d'étanchéité.For example, the document FR2927414 shows a heat exchanger collector box with a flat collector plate and a cover foot having a protruding portion which partially crushes the seal continuously over the entire length of said collector box. The document US4997035 shows a collector box cover whose lid foot has an alternation of recesses and protuberances, the protuberances of which are arranged opposite the openings of the collector plate, said collector plate also having a groove in which is placed the sealing means.

L'invention a donc pour objectif de proposer une boîte collectrice dont la plaque collectrice est de type sans gorge ni rainure, et dont le maintien du joint d'étanchéité est assuré tout en diminuant la largeur de la boîte collectrice.The invention therefore aims to provide a manifold whose collector plate is of the type without groove or groove, and the maintenance of the seal is ensured while reducing the width of the manifold.

À cet effet, l'invention a pour objet une boîte collectrice pour échangeur de chaleur comportant une plaque collectrice sensiblement plane présentant des ouvertures pour le passage d'une pluralité de tubes d'échange de chaleur, un moyen d'étanchéité disposé sur le contour périphérique de la plaque collectrice, et un couvercle comprenant un pied de couvercle périphérique fermant ladite boîte collectrice en comprimant le moyen d'étanchéité, caractérisée en ce que le pied de couvercle présente une forme sensiblement en créneaux avec une alternance de creux et de protubérances s'étendant axialement vers la plaque collectrice, lesdits creux étant agencés en vis-à-vis des ouvertures de la plaque collectrice pour recevoir les extrémités desdits tubes de façon à maintenir le moyen d'étanchéité entre lesdits tubes à l'assemblage, et en ce que la largeur du pied de couvercle est inférieure ou égale à la largeur du moyen d'étanchéité comprimé.To this end, the subject of the invention is a collecting box for a heat exchanger comprising a substantially flat collector plate having openings for the passage of a plurality of heat exchange tubes, a sealing means disposed on the contour peripheral of the collector plate, and a cover comprising a peripheral cover foot closing said manifold by compressing the sealing means, characterized in that the cover foot has a substantially crenellated shape with an alternation of recesses and protuberances extending axially towards the header plate, said recesses being arranged opposite the openings of the header plate to receive the ends of said tubes so as to maintain the sealing means between said tubes at the assembly, and in that that the width of the cover foot is less than or equal to the width of the compressed sealing means.

Ladite boîte collectrice peut en outre comporter une ou plusieurs caractéristiques suivantes, prises séparément ou en combinaison :

  • le couvercle présente une forme générale de voûte et les protubérances sont réalisées dans la continuité de ladite voûte;
  • les protubérances présentent respectivement un contour extérieur de forme sensiblement arrondie;
  • le pied de couvercle présente une forme sensiblement en créneaux sur une épaisseur prédéfinie du pied de couvercle;
  • le moyen d'étanchéité présente une forme complémentaire de celle du pied de couvercle;
  • le moyen d'étanchéité est configuré pour être en contact avec les tubes d'échange de chaleur;
  • le moyen d'étanchéité comporte un joint d'étanchéité;
  • la hauteur d'une protubérance du pied de couvercle est inférieure à la hauteur du moyen d'étanchéité comprimé;
  • la plaque collectrice est fixée au couvercle par sertissage;
  • la plaque collectrice comporte sur sa périphérie des pattes de sertissage rabattues, lors du sertissage, sur le couvercle.
Said manifold may further comprise one or more of the following features, taken separately or in combination:
  • the cover has a general vault shape and the protuberances are made in the continuity of said vault;
  • the protuberances respectively have an outer contour of substantially rounded shape;
  • the cover foot has a substantially crenellated shape to a predefined thickness of the cover foot;
  • the sealing means has a shape complementary to that of the lid base;
  • the sealing means is configured to be in contact with the heat exchange tubes;
  • the sealing means comprises a seal;
  • the height of a protuberance of the cover foot is less than the height of the compressed sealing means;
  • the collector plate is fixed to the cover by crimping;
  • the collector plate has on its periphery folded crimping tabs, during crimping, on the lid.

L'invention concerne aussi un échangeur de chaleur brasé, en particulier pour véhicules automobiles, comportant un faisceau de tubes d'échange de chaleur dont les extrémités sont respectivement fixées à deux boîtes collectrices, telles que définies ci-dessus.The invention also relates to a brazed heat exchanger, in particular for motor vehicles, comprising a bundle of heat exchange tubes whose ends are respectively fixed to two manifolds, as defined above.

L'invention concerne encore un échangeur de chaleur, en particulier pour véhicules automobiles, comportant un faisceau de tubes d'échange de chaleur dont les extrémités sont respectivement fixées à deux boîtes collectrices, les éléments constituant ladite boîte collectrice sont fixés mécaniquement les uns aux autres, les deux boîtes collectrices étant telles que définies ci-dessus.The invention also relates to a heat exchanger, in particular for motor vehicles, comprising a bundle of heat exchange tubes whose ends are respectively fixed to two manifolds, the elements constituting said manifold are mechanically fixed to each other , the two manifolds being as defined above.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, et des dessins annexés parmi lesquels :

  • la figure 1 est une vue éclatée simplifiée d'une boîte collectrice,
  • la figure 2 est une vue en coupe transversale schématique représentant une plaque collectrice et un pied de couvercle, avec en arrière-plan un tube d'échange de chaleur,
  • la figure 3 est une vue en coupe transversale schématique représentant la plaque collectrice et le pied de couvercle au niveau d'un tube d'échange de chaleur,
  • la figure 4 est une vue en coupe longitudinale schématique représentant la plaque collectrice et le pied de couvercle, et
  • la figure 5 représente de façon schématique et partielle une vue en coupe du couvercle de la boîte collectrice.
Other features and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:
  • the figure 1 is a simplified exploded view of a collector box,
  • the figure 2 is a schematic cross-sectional view showing a header plate and a cover foot, with a heat exchange tube in the background,
  • the figure 3 is a schematic cross-sectional view showing the header plate and the cover foot at a heat exchange tube,
  • the figure 4 is a schematic longitudinal sectional view showing the header plate and the cover foot, and
  • the figure 5 shows schematically and partially a sectional view of the lid of the manifold.

Dans ces figures, les éléments sensiblement identiques portent les mêmes références.In these figures, the substantially identical elements bear the same references.

L'invention concerne un échangeur de chaleur pour véhicule automobile, notamment pour refroidir le liquide de refroidissement du moteur.The invention relates to a heat exchanger for a motor vehicle, in particular for cooling the engine coolant.

En particulier, l'invention s'applique pour un échangeur de chaleur brasé. L'invention peut aussi s'appliquer pour un échangeur de chaleur à assemblage mécanique.In particular, the invention applies for a brazed heat exchanger. The invention can also be applied for a mechanical assembly heat exchanger.

On a représenté de façon schématique et simplifiée sur la figure 1, une boîte collectrice 1 pour échangeur de chaleur comprenant un faisceau formé d'une multiplicité de tubes 3 (cf figures 2,3), par exemple en aluminium, agencés selon une ou plusieurs rangées de tubes. Seule une extrémité d'un tube 3 est visible sur les figures 2 et 3, cette extrémité se trouvant en arrière-plan sur la figure 2.Diagrammatic and simplified representation of the figure 1 , a manifold 1 for heat exchanger comprising a beam formed of a multiplicity of tubes 3 (cf. figures 2,3 ), for example aluminum, arranged in one or more rows of tubes. Only one end of a tube 3 is visible on the Figures 2 and 3 , this end lying in the background on the figure 2 .

En se référant à nouveau à la figure 1, la boîte collectrice 1 comprend :

  • une plaque collectrice 5 plane, c'est-à-dire sans gorge, et comportant des ouvertures 7 pour le passage des extrémités des tubes 3, la plaque 5 présentant par exemple des collets 8 pour recevoir ces extrémités de tubes 3,
  • un moyen d'étanchéité tel qu'un joint d'étanchéité 9, et
  • un couvercle 10, par exemple en plastique, avec un pied de couvercle 11.
Referring again to the figure 1 , the manifold 1 comprises:
  • a collector plate 5 flat, that is to say without groove, and having openings 7 for the passage of the ends of the tubes 3, the plate 5 having for example flanges 8 to receive these ends of tubes 3,
  • sealing means such as a seal 9, and
  • a cover 10, for example made of plastic, with a cover foot 11.

On entend par l'expression pied de couvercle la partie inférieure du couvercle 10 venant appuyer sur le joint d'étanchéité 9 et qui coopère avec la plaque collectrice 5 pour se fixer, par exemple grâce à des pattes de sertissage 12 présentes sur la périphérie ou le pourtour de la plaque collectrice 5 et qui sont rabattues, lors du sertissage, sur le couvercle 10.The term "cover foot" is understood to mean the lower part of the cover 10 pressing against the seal 9 and which cooperates with the collector plate 5 to be fixed, for example by means of crimping tabs 12 present on the periphery or around the collecting plate 5 and which are folded during crimping on the cover 10.

La plaque collectrice 5, par exemple en aluminium, présente des bords surélevés ou repliés 5a permettant de définir un logement pour le joint d'étanchéité 9 dans le même plan que les ouvertures 7.The collecting plate 5, for example made of aluminum, has raised or folded edges 5a making it possible to define a housing for the seal 9 in the same plane as the openings 7.

Les pattes de sertissage 12 sont prévues sur ces bords surélevés 5a de la plaque collectrice 5 pour être serties sur les bords du couvercle 10.The crimping tabs 12 are provided on these raised edges 5a of the collector plate 5 to be crimped on the edges of the cover 10.

Le joint d'étanchéité 9 (représenté de façon schématique et simplifiée) est disposé sur le contour périphérique de la plaque collectrice 5 entre le pied de couvercle 11 et la plaque collectrice 5. Selon le mode de réalisation décrit, le joint d'étanchéité 9 est disposé de manière à être en contact avec les tubes 3.The seal 9 (shown schematically and simplified) is disposed on the peripheral contour of the header plate 5 between the foot of the lid 11 and the collector plate 5. According to the embodiment described, the seal 9 is arranged to be in contact with the tubes 3.

En outre, le joint d'étanchéité 9 peut présenter une forme complémentaire de la forme du pied de couvercle 11 et est toujours présent entre le pied de couvercle 11 et la plaque collectrice 5. Il n'y a donc pas de contact direct entre le pied de couvercle 11 et la plaque collectrice 5.In addition, the seal 9 may have a shape complementary to the shape of the cover foot 11 and is always present between the cover foot 11 and the collector plate 5. There is therefore no direct contact between the cover foot 11 and the collector plate 5.

Par ailleurs, le couvercle 10 présente une forme générale sensiblement de voûte.Furthermore, the lid 10 has a generally vaulted general shape.

Comme on le remarque sur le mode de réalisation des figures 2 et 3, le pied de couvercle 11 présente une largeur L,L1 au plus égale à la largeur L',L1' du joint d'étanchéité 9. De ce fait, le gain en largeur de la boîte collectrice 1 est notable, tout en améliorant la liaison entre le couvercle 10 et la plaque collectrice 5, en particulier l'étanchéité.As can be seen in the embodiment of the Figures 2 and 3 , the cover foot 11 has a width L, L 1 at most equal to the width L ', L 1 ' of the seal 9. As a result, the gain in width of the manifold 1 is noticeable, while improving the connection between the cover 10 and the header plate 5, in particular the seal.

Bien entendu, on entend ici par « largeur » du joint d'étanchéité 9, la largeur de celui-ci au repos après déformation élastique due à la compression du joint d'étanchéité 9 par le pied de couvercle 11.Of course, here the term "width" of the seal 9, the width of the latter at rest after elastic deformation due to the compression of the seal 9 by the cover foot 11.

En outre, le pied de couvercle 11 comporte, une forme sensiblement en créneaux visible sur les figures 1 et 4.In addition, the cover foot 11 has a substantially crenellated shape visible on the Figures 1 and 4 .

Cette forme en créneaux est réalisée sur les grands côtés du pied de couvercle 11, par exemple sur juste une épaisseur e du pied de couvercle 11 (voir figure 2) et dans la continuité de la voûte du couvercle 10. Cette forme en créneaux est ici réalisée du côté intérieur du couvercle 10.This crenellated form is formed on the long sides of the cover foot 11, for example on just a thickness e of the cover foot 11 (see figure 2 ) and in the continuity of the roof vault 10. This crenellated form is here made on the inside of the lid 10.

Il y a donc une alternance de creux 13 et de protubérances 15 s'étendant axialement vers la plaque collectrice 5, comme cela est mieux visible sur les figures 1 et 4. Les protubérances 15 sont donc alignées avec la voûte du couvercle 10.There is thus an alternation of recesses 13 and protuberances 15 extending axially towards the collector plate 5, as is better visible on the Figures 1 and 4 . The protuberances 15 are aligned with the roof of the lid 10.

Bien sûr, on entend par pied de couvercle 11 la partie inférieure du couvercle 10, les protubérances axiales 15 y compris venant appuyer sur le joint d'étanchéité 9.Of course, the term "cover foot 11" is understood to mean the lower part of the cover 10, the axial protuberances 15 including pressing against the seal 9.

En se référant aux figures 1 et 3, les creux 13 sont en vis-à-vis des ouvertures 7 de la plaque 5 et donc des extrémités des tubes 3 lorsqu'ils sont assemblés à la boîte collectrice 1, de façon à maintenir le joint d'étanchéité 9 entre les tubes 3.Referring to Figures 1 and 3 , the recesses 13 are opposite the openings 7 of the plate 5 and therefore of the ends of the tubes 3 when they are assembled to the manifold 1, so as to maintain the seal 9 between the tubes 3 .

Au contraire, les protubérances 15 sont de part et d'autre de ces ouvertures 7 et donc des tubes 3 à l'assemblage de l'échangeur de chaleur (voir figures 2 et 3). Il n'y a donc aucune protubérance 15 au niveau des tubes 3 de l'échangeur assemblé.On the contrary, the protuberances 15 are on both sides of these openings 7 and therefore tubes 3 to the assembly of the heat exchanger (see Figures 2 and 3 ). There is therefore no protuberance 15 at the tubes 3 of the assembled exchanger.

De plus, selon le mode de réalisation illustré, chaque protubérance 15 présente une hauteur h inférieure à la hauteur h' du joint d'étanchéité 9, de sorte qu'il n'y ait pas de contact direct entre le pied de couvercle 11 et la plaque collectrice 5.In addition, according to the illustrated embodiment, each protuberance 15 has a height h less than the height h 'of the seal 9, so that there is no direct contact between the cover foot 11 and the collector plate 5.

Pour mesurer la hauteur h de la protubérance 15, on mesure ici la partie protubérante par rapport à un creux 13 comme on le voit sur la figure 4.To measure the height h of the protuberance 15, the protruding portion is measured here with respect to a recess 13 as seen in FIG. figure 4 .

Bien entendu, on entend ici par «hauteur» du joint d'étanchéité 9, la hauteur de celui-ci après déformation élastique due à la compression du joint d'étanchéité 9 par le pied de couvercle 11.Of course, here the term "height" of the seal 9, the height thereof after elastic deformation due to the compression of the seal 9 by the cover foot 11.

En outre, comme on le remarque sur la figure 5, les protubérances peuvent respectivement présenter un contour extérieur 17, c'est-à-dire du côté extérieur du couvercle 10, présentant une forme sensiblement arrondie. On évite ainsi d'abîmer le joint d'étanchéité 9 lors de l'assemblage de la boîte collectrice 1.Moreover, as we notice on the figure 5 , the protuberances may respectively have an outer contour 17, that is to say the outer side of the lid 10, having a substantially rounded shape. This avoids damage to the seal 9 during assembly of the manifold 1.

Bien sûr on peut prévoir toute autre forme du contour extérieur 17 des protubérances 15 réduisant le risque d'abîmer le joint d'étanchéité 9 lors de sa compression.Of course, any other form of the outer contour 17 of the protuberances 15 may be provided which reduces the risk of damaging the seal 9 during its compression.

Ainsi, pour l'assemblage d'un tel échangeur 1 par brasage, on brase ensemble le faisceau de tubes 3 et la plaque collectrice 5, puis on vient sertir le couvercle 10 sur la plaque collectrice 5, notamment à l'aide des pattes de sertissage, avec le joint d'étanchéité 9 intercalé entre le pied de couvercle 11 et la plaque collectrice 5.Thus, for assembling such a heat exchanger 1 by soldering, the tube bundle 3 and the collector plate 5 are brazed together, then the lid 10 is crimped onto the collector plate 5, in particular using the straps of FIG. crimping, with the seal 9 interposed between the cover foot 11 and the collector plate 5.

La partie en créneaux 13,15 du pied de couvercle 11, agencée de sorte que les extrémités des tubes 3 d'échange de chaleur soient intercalés entre les protubérances 15 et qu'il n'y ait rien au niveau des tubes 3, permet d'obtenir une boîte collectrice 1 compacte tout en améliorant l'étanchéité entre le couvercle 10 et la plaque collectrice 5.The crenellated portion 13,15 of the cover foot 11, arranged so that the ends of the heat exchange tubes 3 are interposed between the protuberances 15 and that there is nothing at the level of the tubes 3, allows to obtain a compact header 1 while improving the seal between the cover 10 and the header plate 5.

Claims (12)

  1. Header box for a heat exchanger, comprising:
    - a substantially planar collector plate (5) having openings (7) for the passage of a plurality of heat exchange tubes (3),
    - a sealing means (9) placed around the peripheral contour of the collector plate (5), and
    - a cover (10) comprising a peripheral cover foot (11) that closes the said header box, compressing the sealing means (9),
    - the width (L, L1) of the cover foot (11) being less than or equal to the width of the compressed sealing means (9),
    characterized in that:
    - the cover foot (11) has a substantially crenulated shape with an alternation of recesses (13) and of protrusions (15) extending axially towards the collector plate (5), the said recesses (13) being positioned opposite openings (7) in the collector plate (5) so as to hold the sealing means (9) between the said tubes (3) upon assembly.
  2. Header box according to Claim 1, characterized in that the cover (10) is in an arched overall shape and in that the protrusions (15) are produced in continuity with the said arch.
  3. Header box according to one of Claims 1 and 2, characterized in that the protrusions (15) respectively have an exterior contour (17) of substantially rounded shape.
  4. Header box according to any one of the preceding claims, characterized in that the cover foot (11) has a substantially crenulated shape over a predefined thickness (e) of the cover foot (11).
  5. Header box according to any one of the preceding claims, characterized in that the sealing means (9) has a shape that compliments that of the cover foot (11).
  6. Header box according to any one of the preceding claims, characterized in that the sealing means (9) is configured to be in contact with the heat exchange tubes (3).
  7. Header box according to any one of the preceding claims, characterized in that the sealing means (9) comprises a sealing gasket (9).
  8. Header box according to any one of the preceding claims, characterized in that the height (h) of a protrusion (15) of the cover foot (11) is less than the height (h') of the compressed sealing means (9).
  9. Header box according to any one of the claims, characterized in that the collector plate (5) is fixed to the cover (10) by crimping.
  10. Header box according to Claim 9, characterized in that the collector plate (5) comprises on its periphery crimping tabs (12) which, upon crimping, are folded over onto the cover (10).
  11. Brazed heat exchanger, particularly for motor vehicles, comprising a core bundle of heat exchange tubes (3), the ends of which are respectively fixed to two header boxes, characterized in that the two header boxes are in accordance to any one of the preceding claims.
  12. Heat exchanger, particularly for motor vehicles, comprising a core bundle of heat exchange tubes (3), the ends of which are respectively fixed to two header boxes, the elements that make up the said header box being mechanically joined together, characterized in that the two header boxes are in accordance with any one of Claims 1 to 10.
EP11189688.2A 2010-11-19 2011-11-18 Manifold block and corresponding heat exchanger Active EP2455697B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11189688T PL2455697T3 (en) 2010-11-19 2011-11-18 Manifold block and corresponding heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1059552A FR2967764B1 (en) 2010-11-19 2010-11-19 COLLECTOR BOX AND CORRESPONDING HEAT EXCHANGER

Publications (2)

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EP2455697A1 EP2455697A1 (en) 2012-05-23
EP2455697B1 true EP2455697B1 (en) 2014-09-10

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Application Number Title Priority Date Filing Date
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EP (1) EP2455697B1 (en)
FR (1) FR2967764B1 (en)
PL (1) PL2455697T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791736A (en) * 2013-10-25 2014-05-14 安徽工贸职业技术学院 Radiator
US10724807B2 (en) * 2015-10-22 2020-07-28 T.Rad Co., Ltd. Heat exchanger and method for assembling same
FR3044396B1 (en) * 2015-11-30 2019-12-20 Valeo Systemes Thermiques HEAT EXCHANGER FOR A MOTOR VEHICLE COMPRISING A COLLECTOR BOX
DE102018219171A1 (en) 2018-06-29 2020-01-02 Hanon Systems battery cooler

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222278C2 (en) * 1982-06-14 1990-06-21 Kühlerfabrik Längerer & Reich GmbH & Co KG, 7024 Filderstadt Water cooler, especially for an internal combustion engine
US4997035A (en) * 1990-04-02 1991-03-05 Blackstone Corporation Joint crevice corrosion inhibitor
FR2742529B1 (en) * 1995-12-13 1998-01-30 Valeo Thermique Moteur Sa HEAT EXCHANGER WITH A SET COLLECTOR PLATE, PARTICULARLY FOR A MOTOR VEHICLE
FR2927414B1 (en) * 2008-02-13 2013-02-08 Valeo Systemes Thermiques COLLECTOR BOX WITH COLLECTOR PLATE WITHOUT THROAT

Also Published As

Publication number Publication date
EP2455697A1 (en) 2012-05-23
FR2967764A1 (en) 2012-05-25
PL2455697T3 (en) 2015-06-30
FR2967764B1 (en) 2012-12-21

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