EP2795231B1 - Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box - Google Patents

Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box Download PDF

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Publication number
EP2795231B1
EP2795231B1 EP12815665.0A EP12815665A EP2795231B1 EP 2795231 B1 EP2795231 B1 EP 2795231B1 EP 12815665 A EP12815665 A EP 12815665A EP 2795231 B1 EP2795231 B1 EP 2795231B1
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EP
European Patent Office
Prior art keywords
box
cover
housing
collector
collector plate
Prior art date
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Application number
EP12815665.0A
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German (de)
French (fr)
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EP2795231A1 (en
Inventor
Christian Riondet
Jean-Marc Lesueur
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Valeo Systemes Thermiques SAS
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Valeo Systemes Thermiques SAS
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Priority to PL12815665T priority Critical patent/PL2795231T3/en
Publication of EP2795231A1 publication Critical patent/EP2795231A1/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
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • 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

Definitions

  • the invention relates to a heat exchanger collector box, particularly for a motor vehicle according to the preamble of claim 1.
  • FR 2 927 411 discloses such a collector box. It also relates to a lid of said box and a heat exchanger comprising such a box. It may in particular be radiators in which circulates a heat transfer liquid for cooling the vehicle engine and intended to be located on the front of said vehicle.
  • Collector boxes comprising a metal collector plate and a plastic cover crimped onto said plate are known. To seal between the lid and the box, an elastomeric seal is used.
  • the manifolds are provided with a groove inside which the seal is arranged so that it can be compressed between the lid and the header plate during crimping.
  • Boxes have also been proposed in which the so-called flat plates do not have a groove.
  • the seal then bears against the face of the header plate at which the passage openings of the fluid flow tubes open, at least at the longitudinal ends of the boxes.
  • Such boxes are mainly of interest to reduce the size and weight, especially the weight in use, of the exchanger. Indeed, in the absence of groove for the seal, the dimensions of the collector plate are reduced. It is the same for the internal volume of the box and the amount of fluid to be circulated in the exchanger can thus be limited.
  • said extended seals comprising a bead, to ensure the sealing function of the seal, and a portion of fixation bearing on the ends of the tubes, called in the following outer tubes, located on either side of the beam.
  • Said fixing portion thus makes it possible to install the extended joint on the header plate which ensures the correct positioning of the bead during crimping.
  • seals have tabs for their extension on said outer tubes. Such a seal is described in particular in the application FR2 927 411 .
  • a first solution would be to increase the size of the boxes but that would go against the goal pursued with flat plate heat exchangers.
  • the invention aims to improve the situation and proposes for this purpose a heat exchanger collector box, particularly for a motor vehicle, comprising a header plate, a cover and a seal, providing a seal between said collector plate and said cover, said seal comprising a fixing portion configured to bear on at least one fluid circulation tube of the exchanger, said fixing portion having a gripping projection of said seal, said cover having at least one housing accommodating said projection of gripping.
  • Said cover comprises a vault extended by a box foot, said box foot serving to compress the seal, a bottom wall of said housing being located at the right of said box foot, said housing being defined by a localized deformation of a profile of the vault of said lid.
  • Such an arrangement allows the use of extended type joints while avoiding a compression of the gripping projection of said joints between the tube and the lid of the manifold. This reduces the risk of deformation of the outer tubes of the exchanger while being able to use planar plate collector exchangers.
  • the invention also relates to a collector box cover as described above.
  • the invention also relates to a heat exchanger, especially for a motor vehicle, comprising such a manifold.
  • a heat exchanger comprising tubes 2 forming here a beam in which said tubes 2 are parallel to each other.
  • Each tube 2 has two longitudinal ends connected, in a fixed and sealed manner, to manifolds 3 of the exchanger for the circulation of a fluid, in particular a cooling liquid or the like.
  • Said exchanger may include cheeks 48 for laterally protecting the beam.
  • tubes 2 E are tubes 2 E , said outer tubes, located on either side of said beam.
  • interleaves 17 increasing the heat exchange surface between the fluid flowing in said tubes 2, 2 E and a fluid, including air, passing through the exchanger.
  • spacers 17 may also be used between the outer tubes 2 E and the cheeks 48.
  • Flanges or tubing inlet 5 and outlet 6 of the fluid are here respectively reported to the manifolds 3.
  • the invention relates more particularly to manifolds 3 of said exchanger.
  • the one or more collector boxes 3 comprise a collector plate 5, a cover 6 and a seal 7, sealing between said collector plate 5 and said lid 6.
  • Said box 3 is here of elongated shape, especially of substantially parallelepipedal shape.
  • the collector plate 5 is, for example metal, including aluminum or aluminum alloys.
  • the lid 6 is, for example, plastic. It is crimped on the collector plate 5.
  • Said collector plate 5 comprises, for example, a medallion 8 and a raised edge 9 coming from the periphery of said medallion 8. Said raised edge 9 is provided with crimping teeth 10.
  • Said collector plate 5 here has holes 12, 12 'to through which the tubes, not illustrated in figure 2 , opening at their ends in an interior volume defined by said boxes 3. Said orifices 12, 12 'for passage of the tubes are, for example, in a central part of the medallion 8, surrounded by a peripheral portion accommodating said seal 7.
  • Ledit medallion 8 is here substantially rectangular.
  • Said collector plate 5 is advantageously of the flat plate type.
  • said header plate 5 has no or only partial groove housing of the gasket 7.
  • Said collector plate 5 is thus configured to that the seal 7 bears on a face 14 of the medallion 8, face 14 at which the orifices 12, 12 'for the passage of the fluid circulation tubes open internally into the manifold 3, at least at the level of the or longitudinal ends of said manifold 3.
  • said manifold plate 5 may further comprise flanges 16, 16 'for passage of the tubes, protruding internally from said flat face 14, without this calling into question the type of the collector plate used.
  • said header plate 5 is configured to receive the seal 7 to the right of the peripheral portion of the medallion 8 at said flat face 14, this at least at the longitudinal ends of the boxes.
  • the seal 7 is received at said plane face 14 over the entire contour of said seal 7 or at least at the portion of its contour lying between the orifice 12 'and / or the collar 16' of passage of the outer tubes and the portion of the raised edge 9, located vis-à-vis.
  • Said cover 6 comprises, for example, a vault 18 extended by a box foot 20, intended to correspond to the peripheral portion of said peripheral portion of the medallion 8 of the collector plate 5.
  • said seal 7 comprises a bead 21.
  • Said bead 21 forms a closed contour, corresponding to the profile of the peripheral portion of the medallion 8 of the header plate 5, namely here a substantially rectangular profile.
  • Said cord 21 has, for example, a circular section.
  • Said seal 7 also comprises at least one attachment portion 22, configured to bear on a fluid circulation tube of the exchanger.
  • Said fixing portion 22 is here at one and / or the other end of the seal 7. It cooperates in this way with the associated outer tube 2 E.
  • Said fastening portion 22 is, for example, in the form of a strip of material issuing from the bead 21, along one or the short sides of said bead 21.
  • Said fixing portion 22 has a gripping projection 24 said seal 7. It may be, for example, a tab from said bar of material.
  • said bead 21 seals between said collector plate 5 and said cover 6 being here compressed between the box foot 20 and the peripheral portion of the medallion 8 of the collector plate 5, during the crimping of the cover 6 on said collector plate 5.
  • Said fixing portion 22 serves to maintain the seal 8 in position by ensuring its extension between the outer tubes 2 E.
  • said lid 6 has at least one housing 30 accommodating said gripping projection 24.
  • Said housing 30 is in particular configured to create a space between the outer tubes 2 E and the lid 6, at the level of said gripping projection 24, space allowing said gripping projection 24 to be kept at a distance from said cover 6 or, at the very least, to be only in flush contact, that is to say in contact with said cover 6 without being deformed by the latter.
  • the housing 30 allows the remainder of the lid 6, in particular at the portion 32 of the vault 18 not to be in contact with said gripping portion 24. This avoids the compression of said gripping projection 24 between the outer tubes 2 E and the vault 18 of said cover 6.
  • said collector plate 5 can be crimped to said cover 6 on either side of said housing 30.
  • the collector plate 5 comprises for this, for example, two crimping teeth 10 'bearing on a shoulder 36 of the cover 6, located from on either side of said housing 30. Said shoulder 36 can make the rest of the turn of said lid 6 to cooperate with the other crimping teeth 10.
  • the crimping teeth 10 'bearing on the shoulder 36 of the cover 6 located on either side of said housing 30 are here at a first side 38 of the header plate 5, namely at the level of the one or its longitudinal ends, and said manifold plate 5 comprises said other crimping teeth 10 on adjacent sides 40, 42 to said first side 38.
  • the crimping teeth 10 'located on either side of the housing 30 may present a width greater than that of the teeth 10 on said adjacent sides 40, 42.
  • Said collector plate 5 here comprises a fastening tab 46 of one of said cheeks 48 of the exchanger.
  • Said tongue 46 comes from the raised edge 9. It is located between said crimping teeth 10 'located on either side of said housing 30. Said tongue 46 and said housing 30 are in this way at the same level, from and other of said raised edge 9.
  • a bottom wall 44 of said housing is located, for example, at the right of said box foot 20.
  • Said bottom wall 44 is, for example, in the continuity of said box foot 20.
  • the inner faces and external of said bottom wall 44 of the housing 30 are respectively in the continuity of the inner and outer faces of the box foot 20.
  • Said bottom wall 44 of the housing 30 has the same thickness as the box foot 20.
  • Said housing 30 is here defined by a localized deformation of a profile of the vault 18 of said cover 6. It is located on either side of a median plane of said cover 6. On the rest of the periphery of the cover 6 and in particular on either side of said housing 30, the vault 18 is connected to said box foot 20 via said shoulder 36.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

L'invention concerne une boîte collectrice d'échangeur de chaleur, notamment pour véhicule automobile selon le préambule de la revendication 1. FR 2 927 411 divulgue une telle boîte collectrice. Elle concerne également un couvercle de ladite boîte ainsi qu'un échangeur de chaleur comprenant une telle boîte. Il pourra en particulier s'agir de radiateurs dans lequel circule un liquide caloporteur servant au refroidissement du moteur du véhicule et destiné à être situé en face avant dudit véhicule.The invention relates to a heat exchanger collector box, particularly for a motor vehicle according to the preamble of claim 1. FR 2 927 411 discloses such a collector box. It also relates to a lid of said box and a heat exchanger comprising such a box. It may in particular be radiators in which circulates a heat transfer liquid for cooling the vehicle engine and intended to be located on the front of said vehicle.

Il est connu des échangeurs de chaleur comprenant un faisceau de tubes parallèles et deux boîtes collectrices dans lesquelles sont raccordées, de façon fixe et étanche, les extrémités correspondantes des tubes. Un fluide peut ainsi circuler à travers les tubes et échanger de la chaleur avec un flux d'air externe passant entre les tubes.It is known heat exchangers comprising a bundle of parallel tubes and two manifolds in which are connected in a fixed and sealed manner, the corresponding ends of the tubes. A fluid can thus flow through the tubes and exchange heat with an external air flow passing between the tubes.

Il est connu des boîtes collectrices comprenant une plaque collectrice métallique et un couvercle plastique, serti sur ladite plaque. Pour assurer l'étanchéité entre le couvercle et la boîte, un joint élastomère est utilisé.Collector boxes comprising a metal collector plate and a plastic cover crimped onto said plate are known. To seal between the lid and the box, an elastomeric seal is used.

Traditionnellement, les boîtes collectrices sont munies d'une gorge à l'intérieur de laquelle le joint est disposé afin de pouvoir être comprimé entre le couvercle et la plaque collectrice, lors du sertissage.Traditionally, the manifolds are provided with a groove inside which the seal is arranged so that it can be compressed between the lid and the header plate during crimping.

Il a également été proposé des boîtes dans lesquelles les plaques collectrices, dites planes, ne présentent pas de gorge. Le joint prend alors appui sur la face de la plaque collectrice au niveau de laquelle les orifices de passage des tubes de circulation de fluide débouchent, au moins au niveau des extrémités longitudinales des boîtes. De telles boîtes présentent principalement l'intérêt de diminuer l'encombrement ainsi que le poids, en particulier le poids en utilisation, de l'échangeur. En effet, en absence de gorge pour le joint, les dimensions de la plaque collectrice sont réduites. Il en est de même du volume interne de la boîte et la quantité de fluide à faire circuler dans l'échangeur peut ainsi être limitée.Boxes have also been proposed in which the so-called flat plates do not have a groove. The seal then bears against the face of the header plate at which the passage openings of the fluid flow tubes open, at least at the longitudinal ends of the boxes. Such boxes are mainly of interest to reduce the size and weight, especially the weight in use, of the exchanger. Indeed, in the absence of groove for the seal, the dimensions of the collector plate are reduced. It is the same for the internal volume of the box and the amount of fluid to be circulated in the exchanger can thus be limited.

De telle boîtes collectrices nécessitent cependant de trouver des solutions alternatives à la gorge pour le positionnement du joint. Le bon positionnement de ce dernier est en effet nécessaire pour assurer la fiabilité de l'étanchéité entre le couvercle et la plaque collectrice.Such manifolds, however, require finding alternative solutions to the groove for the positioning of the joint. The proper positioning of the latter is indeed necessary to ensure the reliability of the seal between the cover and the collector plate.

Il a déjà été proposé en ce sens des joints, dit joints étendus, comprenant un cordon, permettant d'assurer la fonction d'étanchéité du joint, et une portion de fixation prenant appui sur les extrémités des tubes, appelés dans la suite tubes extérieurs, situés de part et d'autre du faisceau. Ladite portion de fixation permet de la sorte d'installer le joint en extension sur la plaque collectrice ce qui assure le positionnement correct du cordon lors du sertissage. Pour faciliter leur mise en place, de tels joints présentent des languettes permettant leur mise en extension sur lesdits tubes extérieurs. Un tel joint est notamment décrit dans la demande FR2 927 411 .It has already been proposed in this sense seals, said extended seals, comprising a bead, to ensure the sealing function of the seal, and a portion of fixation bearing on the ends of the tubes, called in the following outer tubes, located on either side of the beam. Said fixing portion thus makes it possible to install the extended joint on the header plate which ensures the correct positioning of the bead during crimping. To facilitate their implementation, such seals have tabs for their extension on said outer tubes. Such a seal is described in particular in the application FR2 927 411 .

Une difficulté vient cependant d'être mise en évidence par le déposant. Dans la configuration actuelle des boîtes, lesdites languettes sont comprimées contre les extrémités débouchantes desdits tubes extérieurs par le couvercle. Il en résulte une déformation desdits tubes extérieurs ce qui risque de provoquer diverses défaillances lors de l'utilisation de l'échangeur.A difficulty, however, has just been highlighted by the applicant. In the present configuration of the boxes, said tabs are compressed against the open ends of said outer tubes by the cover. This results in a deformation of said outer tubes which may cause various failures during use of the exchanger.

Une première solution serait d'augmenter la taille des boîtes mais cela irait à l'encontre du but poursuivi avec les échangeurs à plaque collectrice plane.A first solution would be to increase the size of the boxes but that would go against the goal pursued with flat plate heat exchangers.

L'invention a pour objectif d'améliorer la situation et propose à cette fin une boîte collectrice d'échangeur de chaleur, notamment pour véhicule automobile, comprenant une plaque collectrice, un couvercle et un joint, assurant une étanchéité entre ladite plaque collectrice et ledit couvercle, ledit joint comprenant une portion de fixation configurée pour prendre appui sur au moins un tube de circulation de fluide de l'échangeur, ladite portion de fixation présentant une projection de préhension dudit joint, ledit couvercle présentant au moins un logement accueillant ladite projection de préhension. Ledit couvercle comprend une voute prolongée par un pied de boîte, ledit pied de boîte servant à comprimer le joint, une paroi de fond dudit logement étant située au droit dudit pied de boîte, ledit logement étant défini par une déformation localisée d'un profil de la voute dudit couvercle.The invention aims to improve the situation and proposes for this purpose a heat exchanger collector box, particularly for a motor vehicle, comprising a header plate, a cover and a seal, providing a seal between said collector plate and said cover, said seal comprising a fixing portion configured to bear on at least one fluid circulation tube of the exchanger, said fixing portion having a gripping projection of said seal, said cover having at least one housing accommodating said projection of gripping. Said cover comprises a vault extended by a box foot, said box foot serving to compress the seal, a bottom wall of said housing being located at the right of said box foot, said housing being defined by a localized deformation of a profile of the vault of said lid.

Une telle disposition permet l'emploi de joints du type étendu tout en évitant une compression de la projection de préhension desdits joints entre le tube et le couvercle de la boîte collectrice. On diminue de la sorte le risque de déformation des tubes extérieurs de l'échangeur tout en pouvant utiliser des échangeurs à plaque collectrice plane.Such an arrangement allows the use of extended type joints while avoiding a compression of the gripping projection of said joints between the tube and the lid of the manifold. This reduces the risk of deformation of the outer tubes of the exchanger while being able to use planar plate collector exchangers.

Selon différents modes de réalisation de l'invention, qui pourront être pris ensemble ou séparément :

  • le ou lesdits logements sont situés au niveau d'une ou des extrémités dudit couvercle,
  • ladite plaque collectrice est sertie audit couvercle de part et d'autre dudit logement,
  • ladite plaque collectrice comprend deux dents de sertissage prenant appui sur un épaulement du couvercle situé de part et d'autre dudit logement,
  • lesdites dents de sertissage prenant appui sur l'épaulement du couvercle situé de part et d'autre dudit logement se trouvent sur un premier côté de la plaque collectrice, ladite plaque collectrice comprend des dents de sertissage sur des côtés adjacents audit premier côté et les dents de sertissage se trouvant de part et d'autre du logement présentent une largeur supérieure à celle des dents se trouvant sur lesdits côtés adjacents,
  • ladite paroi de fond est dans la continuité dudit pied de boîte,
According to various embodiments of the invention, which may be taken together or separately:
  • the at least one housing is located at one or more ends of said cover,
  • said collector plate is crimped to said cover on either side of said housing,
  • said collector plate comprises two crimping teeth bearing on a shoulder of the cover located on either side of said housing,
  • said crimping teeth bearing on the shoulder of the lid located on either side of said housing are on a first side of the collector plate, said collector plate comprises crimping teeth on sides adjacent to said first side and the teeth on both sides of the housing have a width greater than that of the teeth on said adjacent sides,
  • said bottom wall is in the continuity of said box foot,

L'invention concerne aussi un couvercle de boîte collectrice telle que décrite plus haut. L'invention concerne encore un échangeur de chaleur, notamment pour véhicule automobile, comprenant une telle boîte collectrice.The invention also relates to a collector box cover as described above. The invention also relates to a heat exchanger, especially for a motor vehicle, comprising such a manifold.

Les figures annexées feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des éléments semblables.

  • La figure 1 est une vue schématique d'ensemble d'un échangeur de chaleur auquel des boîtes collectrices conformes à la présente invention sont destinées.
  • La figure 2 illustre partiellement, en perspective, l'une des boîtes collectrices de l'échangeur de la figure 1, ladite boîte étant montrée de l'intérieur, le couvercle et la plaque collectrice étant coupés transversalement.
  • La figure 3 illustre partiellement, en perspective, le joint d'étanchéité de la figure 2, pris seul.
  • La figure 4 illustre en vue de coupe longitudinale la partie de boîte collectrice illustrée à la figure 2.
  • La figure 5 illustre partiellement, en perspective, ladite boîte, vue de l'extérieur, montée sur l'échangeur.
  • La figure 6 illustre partiellement, en perspective, le couvercle de ladite boîte, vue de l'intérieur.
  • La figure 7 illustre partiellement, en perspective, ledit couvercle, vu de l'extérieur.
The appended figures will make it clear how the invention can be realized. In these figures, identical references designate similar elements.
  • The figure 1 is a schematic overview of a heat exchanger to which manifolds according to the present invention are intended.
  • The figure 2 partially illustrates, in perspective, one of the manifolds of the heat exchanger of the figure 1 , said box being shown from the inside, the cover and the collector plate being cut transversely.
  • The figure 3 partially illustrates, in perspective, the seal of the figure 2 , taken alone.
  • The figure 4 illustrates in longitudinal section view the collector box portion illustrated in FIG. figure 2 .
  • The figure 5 partially illustrates, in perspective, said box, seen from the outside, mounted on the exchanger.
  • The figure 6 partially illustrates, in perspective, the lid of said box, seen from the inside.
  • The figure 7 partially illustrates, in perspective, said lid, seen from the outside.

Comme illustré à la figure 1, l'invention trouvera ses applications dans un échangeur de chaleur comprenant des tubes 2 formant ici un faisceau dans lequel lesdits tubes 2 sont parallèles entre eux. Chaque tube 2 possède deux extrémités longitudinales reliées, de manière fixe et étanche, à des boîtes collectrices 3 de l'échangeur pour la circulation d'un fluide, notamment liquide de refroidissement ou autre. Ledit échangeur pourra comprendre des joues 48 permettant de protéger latéralement le faisceau. On retrouve parmi lesdits tubes 2 les tubes 2E, dits tubes extérieurs, se trouvant de part et d'autre dudit faisceau.As illustrated in figure 1 the invention will find its applications in a heat exchanger comprising tubes 2 forming here a beam in which said tubes 2 are parallel to each other. Each tube 2 has two longitudinal ends connected, in a fixed and sealed manner, to manifolds 3 of the exchanger for the circulation of a fluid, in particular a cooling liquid or the like. Said exchanger may include cheeks 48 for laterally protecting the beam. Among said tubes 2 are tubes 2 E , said outer tubes, located on either side of said beam.

Entre les tubes 2, 2E pourront être agencés des intercalaires 17 augmentant la surface d'échange thermique entre le fluide circulant dans lesdits tubes 2, 2E et un fluide, notamment de l'air, traversant l'échangeur. De tels intercalaires 17 pourront aussi être utilisés entre les tubes extérieurs 2E et les joues 48.Between the tubes 2, 2 E may be arranged interleaves 17 increasing the heat exchange surface between the fluid flowing in said tubes 2, 2 E and a fluid, including air, passing through the exchanger. Such spacers 17 may also be used between the outer tubes 2 E and the cheeks 48.

Des brides ou tubulures d'entrée 5 et de sortie 6 du fluide sont ici respectivement rapportées aux boîtes collectrices 3.Flanges or tubing inlet 5 and outlet 6 of the fluid are here respectively reported to the manifolds 3.

Cela étant, l'invention concerne plus particulièrement les boîtes collectrices 3 dudit échangeur.This being so, the invention relates more particularly to manifolds 3 of said exchanger.

Comme illustré aux figures 2 et 4, la ou lesdites boîtes collectrices 3 conformes à l'invention comprennent une plaque collectrice 5, un couvercle 6 et un joint 7, assurant une étanchéité entre ladite plaque collectrice 5 et ledit couvercle 6. Ladite boîte 3 est ici de forme allongée, notamment de forme sensiblement parallélépipédique. La plaque collectrice 5 est, par exemple en métal, notamment en aluminium ou alliages d'aluminium. Le couvercle 6 est, par exemple, en plastique. Il est serti sur la plaque collectrice 5.As illustrated in figures 2 and 4 the one or more collector boxes 3 according to the invention comprise a collector plate 5, a cover 6 and a seal 7, sealing between said collector plate 5 and said lid 6. Said box 3 is here of elongated shape, especially of substantially parallelepipedal shape. The collector plate 5 is, for example metal, including aluminum or aluminum alloys. The lid 6 is, for example, plastic. It is crimped on the collector plate 5.

Ladite plaque collectrice 5 comprend, par exemple, un médaillon 8 et un bord relevé 9 issu de la périphérie dudit médaillon 8. Ledit bord relevé 9 est muni de dents de sertissage 10. Ladite plaque collectrice 5 présente ici des orifices 12, 12' à travers lesquels les tubes, non illustrés à la figure 2, débouchent par leurs extrémités dans un volume intérieur défini par lesdites boites 3. Lesdits orifices 12, 12' de passage des tubes sont, par exemple, dans une partie centrale du médaillon 8, entourée d'une portion périphérique accueillant ledit joint 7. Ledit médaillon 8 est ici sensiblement rectangulaire.Said collector plate 5 comprises, for example, a medallion 8 and a raised edge 9 coming from the periphery of said medallion 8. Said raised edge 9 is provided with crimping teeth 10. Said collector plate 5 here has holes 12, 12 'to through which the tubes, not illustrated in figure 2 , opening at their ends in an interior volume defined by said boxes 3. Said orifices 12, 12 'for passage of the tubes are, for example, in a central part of the medallion 8, surrounded by a peripheral portion accommodating said seal 7. Ledit medallion 8 is here substantially rectangular.

Ladite plaque collectrice 5 est avantageusement du type plaque plane. Autrement dit, ladite plaque collectrice 5 ne présente pas ou seulement partiellement de gorge de logement du joint 7. Ladite plaque collectrice 5 est ainsi configurée pour que le joint 7 prenne appui sur une face 14 du médaillon 8, face 14 au niveau de laquelle les orifices 12, 12' de passage des tubes de circulation de fluide débouchent intérieurement dans la boîte collectrice 3, ceci au moins au niveau de la ou des extrémités longitudinales de ladite boîte collectrice 3. Comme illustré, ladite plaque collectrice 5 pourra par ailleurs comprendre des collets 16, 16' de passage des tubes, saillant intérieurement à partir de ladite face plane 14, sans que cela remette en cause le type de la plaque collectrice utilisée.Said collector plate 5 is advantageously of the flat plate type. In other words, said header plate 5 has no or only partial groove housing of the gasket 7. Said collector plate 5 is thus configured to that the seal 7 bears on a face 14 of the medallion 8, face 14 at which the orifices 12, 12 'for the passage of the fluid circulation tubes open internally into the manifold 3, at least at the level of the or longitudinal ends of said manifold 3. As illustrated, said manifold plate 5 may further comprise flanges 16, 16 'for passage of the tubes, protruding internally from said flat face 14, without this calling into question the type of the collector plate used.

Autrement dit, ladite plaque collectrice 5 est configurée pour accueillir le joint 7 au droit de la portion périphérique du médaillon 8 au niveau de ladite face plane 14, ceci au moins au niveau des extrémités longitudinales des boîtes. Encore autrement dit, le joint 7 est accueilli au niveau de ladite face plane 14 sur tout le contour dudit joint 7 ou au moins au niveau de la partie de son contour se trouvant entre l'orifice 12' et/ou le collet 16' de passage des tubes extérieurs et la partie du bord relevé 9, située en vis-à-vis.In other words, said header plate 5 is configured to receive the seal 7 to the right of the peripheral portion of the medallion 8 at said flat face 14, this at least at the longitudinal ends of the boxes. In other words, the seal 7 is received at said plane face 14 over the entire contour of said seal 7 or at least at the portion of its contour lying between the orifice 12 'and / or the collar 16' of passage of the outer tubes and the portion of the raised edge 9, located vis-à-vis.

Ledit couvercle 6 comprend, par exemple, une voute 18 prolongée par un pied de boîte 20, destiné à venir en correspondance de la portion périphérique de ladite portion périphérique du médaillon 8 de la plaque collectrice 5.Said cover 6 comprises, for example, a vault 18 extended by a box foot 20, intended to correspond to the peripheral portion of said peripheral portion of the medallion 8 of the collector plate 5.

Comme plus particulièrement visible à la figure 3, ledit joint 7 comprend un cordon 21. Ledit cordon 21 forme un contour fermé, correspondant au profil de la portion périphérique du médaillon 8 de la plaque collectrice 5, à savoir ici un profil sensiblement rectangulaire. Ledit cordon 21 présente, par exemple, une section circulaire.As particularly visible in the figure 3 , said seal 7 comprises a bead 21. Said bead 21 forms a closed contour, corresponding to the profile of the peripheral portion of the medallion 8 of the header plate 5, namely here a substantially rectangular profile. Said cord 21 has, for example, a circular section.

Ledit joint 7 comprend par ailleurs au moins une portion de fixation 22, configurée pour prendre appui sur un tube de circulation de fluide de l'échangeur. Ladite portion de fixation 22 se trouve ici à l'une et/ou l'autre des extrémités du joint 7. Elle coopère de la sorte avec le tube extérieur 2E associé. Ladite portion de fixation 22 se présente, par exemple, sous la forme d'une barrette de matière issue du cordon 21, le long de l'un ou des petits côtés dudit cordon 21. Ladite portion de fixation 22 présente une projection de préhension 24 dudit joint 7. Il pourra s'agir, par exemple, d'une languette issue de ladite barrette de matière.Said seal 7 also comprises at least one attachment portion 22, configured to bear on a fluid circulation tube of the exchanger. Said fixing portion 22 is here at one and / or the other end of the seal 7. It cooperates in this way with the associated outer tube 2 E. Said fastening portion 22 is, for example, in the form of a strip of material issuing from the bead 21, along one or the short sides of said bead 21. Said fixing portion 22 has a gripping projection 24 said seal 7. It may be, for example, a tab from said bar of material.

Si l'on se reporte à nouveau aux figures 2 et 4, on constate que ledit cordon 21 assure l'étanchéité entre ladite plaque collectrice 5 et ledit couvercle 6 en étant ici comprimé entre le pied de boîte 20 et la portion périphérique du médaillon 8 de la plaque collectrice 5, lors du sertissage du couvercle 6 sur ladite plaque collectrice 5. Ladite portion de fixation 22 sert à maintenir le joint 8 en position en assurant sa mise en extension entre les tubes extérieurs 2E.If we go back to figures 2 and 4 , it is found that said bead 21 seals between said collector plate 5 and said cover 6 being here compressed between the box foot 20 and the peripheral portion of the medallion 8 of the collector plate 5, during the crimping of the cover 6 on said collector plate 5. Said fixing portion 22 serves to maintain the seal 8 in position by ensuring its extension between the outer tubes 2 E.

Selon l'invention, ledit couvercle 6 présente au moins un logement 30 accueillant ladite projection de préhension 24. Ledit logement 30 est en particulier configuré pour créer un espace entre les tubes extérieurs 2E et le couvercle 6, au niveau de ladite projection de préhension 24, espace permettant à ladite projection de préhension 24 d'être maintenue à distance dudit couvercle 6 ou, à tout le moins, d'être uniquement en contact affleurant, c'est-à-dire en contact avec ledit couvercle 6 sans être déformée par ce dernier. A la figure 4, on constate que le logement 30 permet au reste du couvercle 6, en particulier à la partie 32 de la voute 18 de ne pas être au contact de ladite portion de préhension 24. On évite de la sorte la compression de ladite projection de préhension 24 entre les tubes extérieurs 2E et la voute 18 dudit couvercle 6.According to the invention, said lid 6 has at least one housing 30 accommodating said gripping projection 24. Said housing 30 is in particular configured to create a space between the outer tubes 2 E and the lid 6, at the level of said gripping projection 24, space allowing said gripping projection 24 to be kept at a distance from said cover 6 or, at the very least, to be only in flush contact, that is to say in contact with said cover 6 without being deformed by the latter. To the figure 4 it is found that the housing 30 allows the remainder of the lid 6, in particular at the portion 32 of the vault 18 not to be in contact with said gripping portion 24. This avoids the compression of said gripping projection 24 between the outer tubes 2 E and the vault 18 of said cover 6.

Comme illustré à la figure 5, ladite plaque collectrice 5 pourra être sertie audit couvercle 6 de part et d'autre dudit logement 30. La plaque collectrice 5 comprend pour cela, par exemple, deux dents de sertissage 10' prenant appui sur un épaulement 36 du couvercle 6, situé de part et d'autre dudit logement 30. Ledit épaulement 36 pourra faire le reste du tour dudit couvercle 6 pour coopérer avec les autres dents de sertissage 10.As illustrated in figure 5 , said collector plate 5 can be crimped to said cover 6 on either side of said housing 30. The collector plate 5 comprises for this, for example, two crimping teeth 10 'bearing on a shoulder 36 of the cover 6, located from on either side of said housing 30. Said shoulder 36 can make the rest of the turn of said lid 6 to cooperate with the other crimping teeth 10.

Les dents de sertissage 10' prenant appui sur l'épaulement 36 du couvercle 6 situé de part et d'autre dudit logement 30 se trouvent ici au niveau d'un premier côté 38 de la plaque collectrice 5, à savoir au niveau de l'une ou de ses extrémités longitudinales, et ladite plaque collectrice 5 comprend desdites autres dents de sertissage 10 sur des côtés adjacents 40, 42 audit premier côté 38. Les dents de sertissage 10' se trouvant de part et d'autre du logement 30 pourront présenter une largeur supérieure à celle des dents 10 se trouvant sur lesdits côtés adjacents 40, 42.The crimping teeth 10 'bearing on the shoulder 36 of the cover 6 located on either side of said housing 30 are here at a first side 38 of the header plate 5, namely at the level of the one or its longitudinal ends, and said manifold plate 5 comprises said other crimping teeth 10 on adjacent sides 40, 42 to said first side 38. The crimping teeth 10 'located on either side of the housing 30 may present a width greater than that of the teeth 10 on said adjacent sides 40, 42.

Ladite plaque collectrice 5 comprend ici une languette de fixation 46 de l'une desdites joues 48 de l'échangeur. Ladite languette 46 est issue du bord relevé 9. Elle est située entre lesdites dents de sertissage 10' se trouvant de part et d'autre dudit logement 30. Ladite languette 46 et ledit logement 30 se trouvent de la sorte au même niveau, de part et d'autre dudit bord relevé 9.Said collector plate 5 here comprises a fastening tab 46 of one of said cheeks 48 of the exchanger. Said tongue 46 comes from the raised edge 9. It is located between said crimping teeth 10 'located on either side of said housing 30. Said tongue 46 and said housing 30 are in this way at the same level, from and other of said raised edge 9.

Comme illustré aux figures 6 et 7, une paroi de fond 44 dudit logement est située, par exemple, au droit dudit pied de boîte 20. Ladite paroi de fond 44 est, par exemple, dans la continuité dudit pied de boîte 20. Autrement dit, les faces interne et externe de ladite paroi de fond 44 du logement 30 sont respectivement dans la continuité des faces interne et externe du pied de boîte 20. Ladite paroi de fond 44 du logement 30 présente de la sorte la même épaisseur que celle du pied de boîte 20.As illustrated in figures 6 and 7 , a bottom wall 44 of said housing is located, for example, at the right of said box foot 20. Said bottom wall 44 is, for example, in the continuity of said box foot 20. In other words, the inner faces and external of said bottom wall 44 of the housing 30 are respectively in the continuity of the inner and outer faces of the box foot 20. Said bottom wall 44 of the housing 30 has the same thickness as the box foot 20.

Ledit logement 30 est ici défini par une déformation localisée d'un profil de la voute 18 dudit couvercle 6. Elle est située de part et d'autre d'un plan médian dudit couvercle 6. Sur le reste du pourtour du couvercle 6 et en particulier de part et d'autre dudit logement 30, la voute 18 se raccorde audit pied de boîte 20 par l'intermédiaire dudit épaulement 36.Said housing 30 is here defined by a localized deformation of a profile of the vault 18 of said cover 6. It is located on either side of a median plane of said cover 6. On the rest of the periphery of the cover 6 and in particular on either side of said housing 30, the vault 18 is connected to said box foot 20 via said shoulder 36.

Claims (8)

  1. Heat exchanger collector box, notably for a motor vehicle, comprising a collector plate (5), a cover (6) and a gasket (7) providing sealing between the said collector plate (5) and the said cover (6), the said gasket (7) comprising a fixing portion (22) configured to bear against at least one fluid circulation tube (2E) of the exchanger, the said fixing portion (22) having a gripping projection (24) for gripping of the said gasket, the said cover having at least one housing (30) accommodating the said gripping projection (24), characterized in that the said cover (6) comprises an arch (18) extended by a box footing (20), the said box footing (20) serving to compress the gasket (7), a back wall (44) of the said housing (30) being situated at right angles to the said box footing (20), the said housing (30) being defined by a localized deformation of a profile of the arch (18) of the said cover (6).
  2. Box according to Claim 1, having an elongate shape and in which the said housing or housings (30) are situated at one or both of the ends of the said cover (6).
  3. Box according to either one of Claims 1 and 2, in which the said collector plate (5) is crimped to the said cover (6) on each side of the said housing (30).
  4. Box according to Claim 3, in which the collector plate (5) comprises two crimping teeth (10') bearing against a shoulder (36) of the cover (6), which is situated on each side of the said housing (30).
  5. Box according to Claim 4, in which the crimping teeth (10') bearing against the shoulder (36) of the cover situated on each side of the said housing (30) lie on a first side (38) of the collector plate (5), the said collector plate (5) comprises crimping teeth (10) on sides (40, 42) adjacent to the said first side (38) and the crimping teeth (10') lying on each side of the housing (30) have a width greater than that of the teeth (10) lying on the said adjacent sides (40, 42).
  6. Box according to any one of the preceding claims, in which the said back wall (44) is in continuity with the said box footing (20).
  7. Cover of a collector box according to any one of the preceding claims.
  8. Heat exchanger, notably for a motor vehicle, comprising a collector box according to any one of Claims 1 to 6.
EP12815665.0A 2011-12-19 2012-12-18 Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box Active EP2795231B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12815665T PL2795231T3 (en) 2011-12-19 2012-12-18 Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1161891A FR2984475B1 (en) 2011-12-19 2011-12-19 HEAT EXCHANGER COLLECTOR BOX, IN PARTICULAR FOR MOTOR VEHICLE, COVER OF SAID BOX AND HEAT EXCHANGER COMPRISING SUCH A BOX
PCT/EP2012/075987 WO2013092610A1 (en) 2011-12-19 2012-12-18 Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box

Publications (2)

Publication Number Publication Date
EP2795231A1 EP2795231A1 (en) 2014-10-29
EP2795231B1 true EP2795231B1 (en) 2017-10-11

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EP12815665.0A Active EP2795231B1 (en) 2011-12-19 2012-12-18 Collector box for a heat exchanger, in particular for a motor vehicle, cover for said box, and heat exchanger including such a box

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Country Link
US (1) US10451364B2 (en)
EP (1) EP2795231B1 (en)
CN (1) CN104094075B (en)
BR (1) BR112014014817B1 (en)
FR (1) FR2984475B1 (en)
PL (1) PL2795231T3 (en)
WO (1) WO2013092610A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035489B1 (en) * 2015-04-27 2017-05-05 Valeo Systemes Thermiques ANNULAR JOINT FOR HEAT EXCHANGER OF MOTOR VEHICLE
FR3054652B1 (en) 2016-07-29 2019-07-05 Valeo Systemes Thermiques COLLECTOR BOX, SEALING MEANS AND THERMAL HEAT EXCHANGER
FR3062473B1 (en) * 2017-01-31 2019-04-19 Valeo Systemes Thermiques COLLECTOR FOR HEAT EXCHANGER.
FR3066264B1 (en) * 2017-05-10 2019-11-01 Valeo Systemes Thermiques THERMAL EXCHANGER, IN PARTICULAR FOR THE THERMAL REGULATION OF BATTERIES, AND METHOD OF MANUFACTURING THE SAME
EP3428567B1 (en) * 2017-07-13 2020-12-16 Valeo Autosystemy SP. Z.O.O. A heat exchanger
DE102018221487A1 (en) * 2018-12-12 2020-06-18 Mahle International Gmbh Heat exchanger for a motor vehicle and associated manufacturing process
LU101721B1 (en) * 2020-03-31 2021-09-30 Ht Holding Luxembourg S A Heat exchanger
CN111854507A (en) * 2020-08-28 2020-10-30 华电重工股份有限公司 Connecting structure and connecting method of indirect air cooling system

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DE102005008409A1 (en) * 2005-02-24 2006-08-31 Modine Manufacturing Co., Racine Heat exchanger with pipes and ribs and manufacturing process
FR2927411B1 (en) * 2008-02-13 2013-03-29 Valeo Systemes Thermiques MEANS FOR SEALING FOR A COLLECTOR HEAT EXCHANGER BOX
WO2009127901A1 (en) * 2008-04-14 2009-10-22 High Power Lithium S.A. Lithium metal phosphate/carbon nanocomposites as cathode active materials for secondary lithium batteries
FR2938052B1 (en) 2008-11-06 2013-04-26 Valeo Systemes Thermiques Branche Thermique Moteur GRIP COLLECTING PLATES FOR HEAT EXCHANGER COLLECTOR BOXES
DE102009049483A1 (en) 2009-10-15 2011-04-21 Modine Manufacturing Co., Racine Heat exchanger and seal arrangement for it

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CN104094075B (en) 2018-06-05
BR112014014817A2 (en) 2017-06-13
BR112014014817B1 (en) 2020-07-28
EP2795231A1 (en) 2014-10-29
US20140332190A1 (en) 2014-11-13
US10451364B2 (en) 2019-10-22
FR2984475B1 (en) 2018-04-27
WO2013092610A1 (en) 2013-06-27
CN104094075A (en) 2014-10-08
FR2984475A1 (en) 2013-06-21
PL2795231T3 (en) 2018-03-30

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