EP3274643B1 - Collection box for heat exchanger of a motor vehicle air-conditioning circuit, and heat exchanger including such a collection box - Google Patents

Collection box for heat exchanger of a motor vehicle air-conditioning circuit, and heat exchanger including such a collection box Download PDF

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Publication number
EP3274643B1
EP3274643B1 EP16712830.5A EP16712830A EP3274643B1 EP 3274643 B1 EP3274643 B1 EP 3274643B1 EP 16712830 A EP16712830 A EP 16712830A EP 3274643 B1 EP3274643 B1 EP 3274643B1
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EP
European Patent Office
Prior art keywords
protuberances
collector box
heat exchanger
manifold
control orifice
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.)
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Application number
EP16712830.5A
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German (de)
French (fr)
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EP3274643A1 (en
Inventor
Arnaud CINGET
Gaël DURBECQ
Jean-Baptiste CUILLIER
Salim RABAHI
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 Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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Publication of EP3274643A1 publication Critical patent/EP3274643A1/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
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/16—Safety or protection arrangements; Arrangements for preventing malfunction for preventing leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/04—Means for preventing wrong assembling of parts
    • 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 the field of heat exchangers, in particular condensers, and relates in particular to an associated collector box according to the preamble of claim 1.
  • EP 0 805 330 discloses such a collector box.
  • the invention will find particular applications in the field of air conditioning circuits for motor vehicles.
  • heat exchangers composed of a beam, itself composed of parallel tubes, said beam allowing a heat exchange between a first fluid flowing inside said tubes, and a second fluid, passing through said beam between said tubes.
  • Said heat exchangers further comprise collecting boxes to which said tubes are connected.
  • Collection boxes are known, composed of a collecting plate and a lid.
  • it is known to organize the circulation of the first fluid in the beam in several passes.
  • it is known to provide the manifolds of partition walls to divide an inner space of the collector box into several compartments. Said partitions are configured to limit or prevent the flow of said first fluid from one compartment to another. These partitions are generally invisible from the outside so that it is not possible to know, at the time of assembly, whether they have been put in place.
  • One of the objectives of the invention is to provide a collector box that allows a rapid control of the presence or absence of said partitions, while limiting the risks of creation of a leakage fault.
  • the invention thus relates to a collection box, in particular for a heat exchanger in a motor vehicle, said heat exchanger being designed to allow heat exchange with a first fluid, said manifold being provided with at least one control orifice and at least one protrusion for holding in position a partition wall designed to allow a separation of an interior space of the manifold box in several compartments, said control orifice being adapted to allow leakage of said first fluid to the outside of the manifold when said manifold is devoid of said partition wall, said control port being designed to be closed by said partition wall. Said control orifice being shifted transversely relative to the protuberances of the same pair of protuberances.
  • the assembly of the pre-brazing partitions is obtained by the one or more retaining protuberances and the orifice is devoid of a function of maintaining the partition wall. It thus makes it possible to control the presence of the partition without risk of altering the tightness of the collecting box.
  • the invention further relates to a heat exchanger comprising such a manifold.
  • the invention relates to a heat exchanger 100, and a manifold 3 for such a heat exchanger 100, especially for a motor vehicle.
  • Said exchanger 100 is for example a condenser 100 configured to allow heat energy exchange between a first fluid and a second fluid.
  • said first fluid is advantageously a refrigerant circulating inside the heat exchanger 100.
  • the second fluid is for example ambient air circulating through the shell of a motor vehicle and engulfing in a motor compartment so as to pass through said condenser 100.
  • Said heat exchanger 100 comprises for example a beam 110 of heat exchange provided on either side of a said manifold 3 according to the invention.
  • Said beam 110 is for example composed of tubes 111 inside which said first fluid flows and between which said second fluid circulates.
  • Said tubes 111 are advantageously oriented parallel to each other in a direction perpendicular to a main direction of longitudinal extension of the manifolds 3.
  • Said tubes 111 of the beam 110 open into the manifolds 3, at their ends.
  • Said beam 110 may further comprise fins 112, positioned between the tubes 111.
  • Said heat exchanger 100 may further comprise an inlet 120 for the inlet of the first fluid in said heat exchanger 100 and an outlet 130 for the outlet of the first fluid of the heat exchanger 100, here respectively connected to each of the collector boxes.
  • said header box 3 comprises a cover 32 and a header plate 31 each having a principal direction of longitudinal extension parallel to a principal direction of longitudinal extension of the manifold 3.
  • the cover 32 and the collector plate 31 are advantageously brazed to each other.
  • Said manifold 3, thus formed, has a substantially tubular general shape and extends in its main direction of longitudinal extension between two ends of the manifold 3, said axial ends.
  • Said collector plate 31 defines a bottom 311 extended by two lateral flanks 310 so that each lateral flank 310 extends longitudinally from one axial end to the other of the manifold 3.
  • the manifold plate 31 has, for example, a cross section substantially U. These side flanks 310 extend here parallel to each other and vis-à-vis one another.
  • introduction ports 33 for example oblong, all along it.
  • Said introduction orifices 33 are mutually parallel and each extend orthogonally to the direction of extension of the manifold 3. These insertion orifices 33 are intended to receive the ends corresponding tubes 111 of the beam 110 of the exchanger and may be flanked by collars 330.
  • the cover 32 extends longitudinally between the two axial ends of the header box 3 and has a substantially U-shaped cross section.
  • Said cover 32 comprises a base 321, in particular provided slightly concave.
  • Said base 321 is here extended by lateral flanks 320, parallel and vis-à-vis one of the other, advantageously shorter than those of the header plate 31.
  • the lateral flanks 320 of the cover 32 extend longitudinally from one axial end to the other of the manifold 3.
  • the bottom 311 of the header plate 31 and the base 321 of the cover 32 are designed to be mounted opposite one another and parallel to each other.
  • the distance, called the width, separating the two lateral flanks 320 from the cover 32 is smaller than the distance, called the width, separating the two lateral flanks 310 from the collecting plate 31.
  • the dimension, especially in width of the cover 32 is such that the lateral flanks 320 of the cover 32 fit between the lateral flanks 310 of the collector plate 31. In this manner, each lateral flank 320 of the cover 32 is in contact with a lateral flank 310 of the collector plate 31.
  • the orientations of the U forming respectively the manifold plate 31 and the cover 32 are here opposite.
  • the assembly of the cover 32 and the collector plate 31 defines an interior space of the manifold 3 in which is circulated said first fluid.
  • the cross section of the header box 3 is substantially oval or rectangular with rounded corners.
  • the cover 32 and the collector plate 31 are crimped and then brazed to one another at the side flanks 310, 320 so as to ensure a connection and a seal between the cover 32 and the collector plate 31.
  • said crimping can be done by crimping a part of each lateral flank 310 of the header plate 31 on one of the lateral flanks 320 of the cover 32.
  • Closing walls are advantageously provided at each of the axial ends of the header box 3 to close it.
  • said manifold box 3 is provided with protuberances 2 for holding in position a partition wall 7.
  • the protuberances 2 are for example arranged on one or the other of the lateral flanks 310 of the header plate 31 .
  • Said protuberances 2 are, for example, lugs projecting towards said interior space of the manifold box 3.
  • Said protuberances 2 are advantageously arranged in pairs of protuberances 2, so that said partition wall 7 is designed to engage between the protuberances 2 of the same pair of protuberances 2.
  • the protuberances 2 of the same pair of protuberances 2 are advantageously, on the same lateral flank 310 of the manifold 3, separated from one another by a distance substantially equal to one thickness of the partition wall 7 so as to allow insertion and maintenance of said partition wall 7.
  • said protuberances 2 of the same pair of protuberances are aligned on the same straight line parallel to the main direction of longitudinal extension of the collectric box e 3.
  • the manifold 3 is provided with at least two pairs of protuberances 2 arranged vis-à-vis one another with respect to a plane of symmetry of said manifold 3.
  • said pairs of protuberances 2 are for example each arranged on a lateral flank 310 of the collector plate 31.
  • Said partition wall 7 is designed to be held in position by one and the other of these pairs of protuberances 2, said separating partition 7 being inserted between the protuberances 2 of each pair of protuberances 2.
  • Said protuberances 2 are also designed to allow blockage of said partition wall 7 in translation along the main direction of longitudinal extension of the manifold 3.
  • said protuberances 2 are for example of cylindrical shape, said cylindrical shape allowing rapid insertion of the partition wall 7 between one and the other of the protuberances 2 of the same pair.
  • said protuberances of the same pair of protuberances 2 have the shape of a triangular prism and each have a planar face, said contact face, said contact faces being oriented parallel to a plane orthogonal to the main direction of longitudinal extension of the manifold 3 and being arranged vis-à-vis one another.
  • Each of said contact faces of the protuberances is adapted to be in contact with said partition wall 7.
  • said protuberances 2 are for example designed and arranged to serve as positioning stops between the cover 32 and the header plate 31, in particular before brazing with each other.
  • the cover 32 and the collector plate 31 may be arranged so that a longitudinal edge of the lateral flanks 320 of the cover 32 rests on said protuberances 2. This configuration makes it easier to position the cover 32 and the plate respectively. collector 31 before brazing with each other.
  • the protuberances 2 may be arranged elsewhere than on the lateral flanks 310 of the collecting plate 31, for example on the base 311 or at the level of the cover 32.
  • Said partition 7 is designed to separate said interior space of the header box 3 in at least two compartments so as to allow a circulation of the first fluid in the heat exchanger 100 in several passes.
  • Said partition 7 is advantageously a wall having two flat faces 71, 72 parallel to one another. Said flat faces 71, 72 are separated from one another, and connected to one another, by a peripheral lateral face 70. Said planar faces 71, 72 of the partition wall 7 are intended to be in contact with each other. contact with said first fluid. Said peripheral lateral face 70 of the partition wall 7 is, it, designed to be in contact with the inner walls of the manifold 3. The following is a definition of the partition wall 7 as the distance, in one direction perpendicular to the two planar faces 71, 72, separating said two planar faces. Said partition 7 is advantageously of substantially flat shape and thin.
  • the contact faces of the protuberances 2 are intended to be in contact with a part of the flat faces 71, 72 of the partition walls 7.
  • Said partition 7 is designed to be positioned between two protuberances 2 and oriented substantially in a plane orthogonal to the main direction of longitudinal extension of the manifold 3.
  • the partition wall 7 is configured to limit or prevent a flow of the first fluid on either side of said partition wall 7 in the interior of the header box 3.
  • the partition wall 7 has a contour of substantially identical shape to the shape of an internal cross section of the manifold 3.
  • the partition wall 7 is designed to cooperate by complementary shape with the inner walls of the manifold 3 so as to be brazed to them.
  • the partition wall 7 has a first portion in contact with an inner contour of the cover 32 and a second portion in contact with an inner contour of the header plate 31, the second portion defining lateral shoulders in contact with the longitudinal edges of the cover 32, which immobilizes the partition in rotation, before brazing.
  • the peripheral lateral face 70 of the partition wall 7 is intended, once the cover 32 is brazed to the collector plate 31, to be in full contact with said cover 32 and with said collector plate 31.
  • This form of the separating partition 7 allows in particular to obtain a sealed separation between the two compartments that separates said partition wall 7 even if slight leaks can occur from one compartment to another.
  • said partition wall 7 is designed to be disposed, in the interior space of the manifold box 3, between two adjacent introduction orifices 33 of the tubes 111.
  • the manifold 3 is provided with at least one control orifice 1.
  • Said control orifice 1 is designed to allow leakage of said first fluid towards the outside of the manifold 3 when said manifold 3 is devoid of one of said partition walls 7, said control port 1 being designed to be closed by said partition wall 7 when it is actually present.
  • said control orifice 1 is designed to be closed by said partition wall 7 when it is disposed between said protuberances 2.
  • control orifices 1 allow a visual check of the presence or absence of partition wall 7 from the outer space of the header box 3, for example by a mounting operator, even once. the manifold plate 31 and the lid 32 brazed to each other. A leak test will also verify the presence or absence of said partition wall 7.
  • Said inspection orifices 1 are for example arranged on the lateral flanks 310 of the collector plate 31.
  • said control orifices 1 may be arranged at any place enabling them to be closed by the insertion of said partition wall 7, either at the level of the collector plate 31 or at the level of the cover 32.
  • Said control orifices 1 are advantageously designed so as to cross on either side said lateral flanks 310 of the manifold 3, so as to allow a circulation of said first fluid between the outside and said inside space of the manifold 3 when the collecting box 3 is devoid of said partition wall 7.
  • Each of said control orifices 1 may for example be obtained by perforation, by drilling or by puncturing the collector plate 31.
  • the manifold 3 is provided with two control orifices 1, each control orifice 1 being disposed on one of the lateral flanks 310 of the collector plate 31, between the two protuberances 2 of the same pair of protuberances. More specifically, here, said protuberances 2 of the same pair of protuberances 2 are separated from each other by said control orifice 1. In other words, each of the protuberances 2 of the same pair of protuberances 2 and said orifice 1 are all substantially aligned along the same straight line parallel to the main direction of longitudinal extension of the manifold 3.
  • Each control orifice 1 opens here into a bowl 10, formed on an outer face of said manifold 3 by inclined faces of said protuberances 2.
  • said two control orifices 1 are arranged facing each other, for example to facilitate visual inspection of the presence or absence of the partition wall 7.
  • said partition wall 7 is designed to be arranged at said control orifices 1.
  • each of said control orifices 1 is designed to be closed off by a part of the peripheral lateral face 70 of partition wall 7.
  • control orifice 1 opens into one or more channels 11 formed by a material thickness 12 of said manifold 3 forming a radial stop for said partition wall 7.
  • said control orifices 1 are arranged between the protuberances 2 of the same pair of protuberances 2.
  • said channel 11 this time extends radially through said thickness of material 12.
  • the two protuberances 2 of the same pair of protuberances 2 and one of said control orifices 1 are here aligned along the same straight line parallel to the principal direction of longitudinal extension of the manifold 3.
  • each of said control ports 1 is configured to be closed by a portion of the peripheral side face 70 of the partition wall 7.
  • Said control orifices 1 here have a cross section, that is to say in a plane parallel to the lateral flank 310, of substantially circular shape.
  • said control orifices 1 may have a cross section of different shape for example oblong, triangular or rectangular.
  • said channels 11 extend on either side of said thickness of material 12. Said channels 11 extend between said thickness of material 12 and the inclined faces of said protuberances 2.
  • the manifold 3 is provided with two control orifices 1, each control orifice 1 being disposed on one of the lateral flanks 310 of the manifold plate 31.
  • said control orifices 1 have substantially the shape of a cylinder of revolution.
  • Each of the two control orifices 1 is arranged, on one of the lateral flanks 310, near a pair of protuberances 2.
  • said control orifices 1 are not, here, aligned with the two protuberances 2 of the same pair of protuberances 2 near which each control port 1 is arranged.
  • each of said control orifices 1 is shifted transversely with respect to the protuberances 2 of the same pair of protuberances 2.
  • Each control orifice 1 is equidistant from one and the other of the protuberances 2 of the same pair of protuberances 2 near which it is located.
  • the protuberances 2 are advantageously of substantially cylindrical shape so that once the partition 7 has been inserted between each pair of protuberances 2, the said partition 7 is locked in translation along the said principal direction of longitudinal extension of the collector box 3.

Description

L'invention se rapporte au domaine des échangeurs de chaleur, notamment des condenseurs, et concerne en particulier une boite collectrice associée selon le préambule de la revendication 1. EP 0 805 330 divulgue une telle boîte collectrice.The invention relates to the field of heat exchangers, in particular condensers, and relates in particular to an associated collector box according to the preamble of claim 1. EP 0 805 330 discloses such a collector box.

L'invention trouvera notamment ses applications dans le domaine des circuits de climatisation pour véhicules automobiles.The invention will find particular applications in the field of air conditioning circuits for motor vehicles.

Il est connu des échangeurs de chaleur composés d'un faisceau, lui-même composé de tubes parallèles, ledit faisceau permettant un échange de chaleur entre un premier fluide, circulant à l'intérieur desdits tubes, et un second fluide, traversant ledit faisceau entre lesdits tubes. Lesdits échangeurs comprennent en outre des boites collectrices auxquelles sont connectés lesdits tubes.It is known heat exchangers composed of a beam, itself composed of parallel tubes, said beam allowing a heat exchange between a first fluid flowing inside said tubes, and a second fluid, passing through said beam between said tubes. Said heat exchangers further comprise collecting boxes to which said tubes are connected.

On connaît des boites collectrices, composées d'une plaque collectrice et d'un couvercle. Afin de favoriser les échanges thermiques entre le premier et le second fluide, il est connu d'organiser la circulation du premier fluide dans le faisceau en plusieurs passes. Pour permettre une telle distribution du fluide, il est connu de munir les boites collectrices de cloisons de séparation permettant de diviser un espace intérieur de la boite collectrice en plusieurs compartiments. Lesdites cloisons sont configurées de manière à limiter, voire empêcher la circulation dudit premier fluide d'un compartiment à l'autre. Ces cloisons sont généralement invisibles de l'extérieur de sorte qu'il n'est pas possible de savoir, au moment du montage, si elles ont bien été mises en place.Collection boxes are known, composed of a collecting plate and a lid. In order to promote heat exchange between the first and the second fluid, it is known to organize the circulation of the first fluid in the beam in several passes. To allow such a distribution of the fluid, it is known to provide the manifolds of partition walls to divide an inner space of the collector box into several compartments. Said partitions are configured to limit or prevent the flow of said first fluid from one compartment to another. These partitions are generally invisible from the outside so that it is not possible to know, at the time of assembly, whether they have been put in place.

Cela étant, afin de positionner et de maintenir en position les cloisons au sein des boites collectrices avant brasage, il est également connu de disposer lesdites cloisons dans des fentes agencées sur la plaque collectrice et/ou sur le couvercle. De telles fentes pourraient permettre de détecter une absence de cloison mais ce n'est pas leur but. De plus, cette solution présente l'inconvénient de créer un risque de défaut d'étanchéité de la boite collectrice.That is, in order to position and maintain the position of the partitions in the collector boxes prior to soldering, it is also known to arrange said partitions in slots arranged on the collector plate and / or on the cover. Such slots could detect a lack of partition but this is not their goal. In addition, this solution has the disadvantage of creating a risk of sealing failure of the header box.

L'un des objectifs de l'invention est de proposer une boite collectrice qui permette un contrôle rapide de la présence ou de l'absence desdites cloisons, tout en limitant les risques de création d'un défaut d'étanchéité. L'invention concerne ainsi une boite collectrice, notamment pour échangeur de chaleur dans un véhicule automobile, ledit échangeur de chaleur étant conçu pour permettre un échange de chaleur avec un premier fluide, ladite boite collectrice étant munie d'au moins un orifice de contrôle et d'au moins une protubérance de maintien en position d'une cloison de séparation conçue pour permettre une séparation d'un espace intérieur de la boite collectrice en plusieurs compartiments, ledit orifice de contrôle étant apte à permettre une fuite dudit premier fluide vers l'extérieur de la boite collectrice lorsque ladite boite collectrice est dépourvue de ladite cloison de séparation, ledit orifice de contrôle étant conçu pour être obturé par ladite cloison de séparation. Ledit orifice de contrôle étant décalé transversalement par rapport aux protubérances d'une même paire de protubérances.One of the objectives of the invention is to provide a collector box that allows a rapid control of the presence or absence of said partitions, while limiting the risks of creation of a leakage fault. The invention thus relates to a collection box, in particular for a heat exchanger in a motor vehicle, said heat exchanger being designed to allow heat exchange with a first fluid, said manifold being provided with at least one control orifice and at least one protrusion for holding in position a partition wall designed to allow a separation of an interior space of the manifold box in several compartments, said control orifice being adapted to allow leakage of said first fluid to the outside of the manifold when said manifold is devoid of said partition wall, said control port being designed to be closed by said partition wall. Said control orifice being shifted transversely relative to the protuberances of the same pair of protuberances.

De la sorte, l'assemblage des cloisons avant brasage est obtenu par la ou les protubérances de maintien et l'orifice est dépourvu de fonction de maintien de la cloison de séparation. Il permet ainsi de contrôler la présence de la cloison sans risque d'altérer l'étanchéité de la boite collectrice.In this way, the assembly of the pre-brazing partitions is obtained by the one or more retaining protuberances and the orifice is devoid of a function of maintaining the partition wall. It thus makes it possible to control the presence of the partition without risk of altering the tightness of the collecting box.

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

  • Lesdites protubérances sont conçues de manière à faire saillie vers ledit espace intérieur de ladite boite collectrice,
  • lesdites protubérances sont des ergots,
  • lesdites protubérances sont de forme cylindrique,
  • lesdites protubérances présentent une forme de prisme triangulaire,
  • lesdites protubérances sont disposées par paires, de sorte que la cloison est conçue pour être engagée entre deux protubérances d'une même paire,
  • ledit orifice de contrôle est agencé à équidistance de chacune des protubérances d'une même paire de protubérances,
  • ledit orifice de contrôle est agencé entre deux protubérances d'une même paire de protubérances,
  • deux protubérances d'une même paire de protubérances sont séparées l'une de l'autre par l'un desdits orifices de contrôle,
  • lesdites protubérances sont de forme cylindrique,
  • lesdites protubérances présentent une forme de prisme triangulaire,
  • ledit orifice de contrôle débouche dans une cuvette, formée sur une face extérieure de ladite boite collectrice par des pans inclinés desdites protubérances,
  • ledit orifice de contrôle débouche dans un ou plusieurs canaux formés par une épaisseur de matière de ladite boite collectrice faisant butée radiale pour ladite cloison de séparation,
  • ledit canal s'étend radialement à travers ladite épaisseur de matière,
  • lesdits canaux s'étendent de part et d'autre de ladite épaisseur de matière,
  • lesdites paires de protubérances sont disposées en vis-à-vis de part et d'autre d'un plan de symétrie de la boite collectrice,
  • lesdites protubérances sont conçues pour bloquer ladite cloison de séparation en translation selon une direction principale d'extension longitudinale de la boite collectrice,
  • ladite boite collectrice comprend un couvercle et une plaque collectrice,
  • ladite plaque collectrice est munie desdites protubérances,
  • ledit couvercle est muni desdites protubérances,
  • ladite boite collectrice comprend une rangée d'orifices d'introduction de tubes de circulation du premier fluide formée sur une base de la boite collectrice,
  • lesdites protubérances sont situées au niveau de flancs latéraux de ladite boite collectrice s'étendant de part et d'autre de ladite rangée d'orifices d'introduction,
  • ledit orifice de contrôle est destiné à être obturé par une partie de tranche de ladite cloison de séparation.
According to various embodiments of the invention, which may be taken together or separately:
  • Said protuberances are designed to protrude towards said interior space of said collector box,
  • said protuberances are spurs,
  • said protuberances are of cylindrical shape,
  • said protuberances have a triangular prism shape,
  • said protuberances are arranged in pairs, so that the partition is designed to be engaged between two protuberances of the same pair,
  • said control orifice is arranged equidistant from each of the protuberances of the same pair of protuberances,
  • said control orifice is arranged between two protuberances of the same pair of protuberances,
  • two protuberances of the same pair of protuberances are separated from each other by one of said control orifices,
  • said protuberances are of cylindrical shape,
  • said protuberances have a triangular prism shape,
  • said control orifice opens into a bowl, formed on an outer face of said manifold box by inclined faces of said protuberances,
  • said control orifice opens into one or more channels formed by a material thickness of said collector box forming a radial abutment for said partition wall,
  • said channel extends radially through said thickness of material,
  • said channels extend on either side of said thickness of material,
  • said pairs of protuberances are arranged facing each other on either side of a plane of symmetry of the collecting box,
  • said protuberances are designed to block said translational partition in a main direction of longitudinal extension of the collector box,
  • said manifold comprises a cover and a collector plate,
  • said collector plate is provided with said protuberances,
  • said cover is provided with said protuberances,
  • said manifold comprises a row of flow tube introduction orifices of the first fluid formed on a base of the manifold,
  • said protuberances are located at the side flanks of said manifold box extending on either side of said row of insertion orifices,
  • said control orifice is intended to be closed off by a portion of wafer of said partition wall.

L'invention concerne encore un échangeur de chaleur comprenant une telle boite collectrice.The invention further relates to a heat exchanger comprising such a manifold.

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre, d'au moins un mode de réalisation de l'invention donné à titre d'exemple purement illustratif et non limitatif, en référence aux dessins schématiques annexés.

  • Les figures la, 2a, 3a et 4a sont des vues, selon une coupe longitudinale, d'une partie de la boite collectrice, munie d'une cloison de séparation, selon différents modes de réalisation de l'art antérieur.
  • Les figures 1b, 2b, 3b et 4b sont des vues en perspective d'une partie de la boite collectrice, dépourvue de couvercle et de cloison de séparation, selon les différents modes de réalisation précédents.
  • Les figures 1c, 2c, 3c et 4c sont des vues en perspective de la partie de la boite collectrice des figures 1b, 2b, 3b et 4b, munie d'une cloison de séparation, selon les différents modes de réalisation.
  • Les figures 1d, 2d, 3d et 4d, sont des vues en perspective d'une coupe longitudinale de la boite collectrice, munie d'une cloison de séparation, selon les différents modes de réalisation, le plan de coupe utilisé étant orthogonal à celui des figures la, 2a, 3a et 4a.
  • Le figure 5 est une vue de face d'un échangeur de chaleur muni de deux boites collectrices selon l'invention.
The invention will be better understood, and other objects, details, features and advantages thereof will become more clearly apparent in the following detailed explanatory description of at least one embodiment of the invention given to As a purely illustrative and non-limiting example, with reference to the accompanying schematic drawings.
  • Figures la, 2a, 3a and 4a are views, in longitudinal section, of a portion of the header box, provided with a partition, according to different embodiments of the prior art.
  • The figures 1b , 2b , 3b and 4b are perspective views of a portion of the manifold, devoid of cover and partition, according to the various embodiments above.
  • The figures 1c , 2c , 3c and 4c are perspective views of the part of the collector box of figures 1b , 2b , 3b and 4b , provided with a partition wall, according to different embodiments.
  • The figures 1d , 2d , 3D and 4d , are perspective views of a longitudinal section of the header box, provided with a partition wall, according to different embodiments, the cutting plane used being orthogonal to that of Figures la, 2a, 3a and 4a.
  • The figure 5 is a front view of a heat exchanger provided with two collector boxes according to the invention.

Comme illustré à la figure 5, l'invention concerne un échangeur de chaleur 100, ainsi qu'une boite collectrice 3 pour un tel échangeur de chaleur 100, notamment pour un véhicule automobile. Ledit échangeur 100 est par exemple un condenseur 100 configuré pour permettre un échange d'énergie thermique entre un premier fluide et un second fluide. Ainsi, dans les modes de réalisation décrits ici, ledit premier fluide est avantageusement un fluide réfrigérant circulant à l'intérieur de l'échangeur de chaleur 100. Le second fluide est par exemple de l'air ambiant circulant à travers la calandre d'un véhicule automobile et s'engouffrant dans un compartiment moteur de manière à traverser ledit condenseur 100. Ledit échangeur de chaleur 100 comprend par exemple un faisceau 110 d'échange de chaleur muni de part et d'autre d'une dite boite collectrice 3 conforme à l'invention. Ledit faisceau 110 est par exemple composé de tubes 111 à l'intérieur desquels circule ledit premier fluide et entre lesquels circule ledit second fluide. Lesdits tubes 111 sont avantageusement orientés parallèlement les uns aux autres selon une direction perpendiculaire à une direction principale d'extension longitudinale des boites collectrices 3. Lesdits tubes 111 du faisceau 110 débouchent dans les boites collectrices 3, à leurs extrémités. Ledit faisceau 110 pourra en outre comprendre des ailettes 112, positionnées entre les tubes 111.As illustrated in figure 5 the invention relates to a heat exchanger 100, and a manifold 3 for such a heat exchanger 100, especially for a motor vehicle. Said exchanger 100 is for example a condenser 100 configured to allow heat energy exchange between a first fluid and a second fluid. Thus, in the embodiments described here, said first fluid is advantageously a refrigerant circulating inside the heat exchanger 100. The second fluid is for example ambient air circulating through the shell of a motor vehicle and engulfing in a motor compartment so as to pass through said condenser 100. Said heat exchanger 100 comprises for example a beam 110 of heat exchange provided on either side of a said manifold 3 according to the invention. Said beam 110 is for example composed of tubes 111 inside which said first fluid flows and between which said second fluid circulates. Said tubes 111 are advantageously oriented parallel to each other in a direction perpendicular to a main direction of longitudinal extension of the manifolds 3. Said tubes 111 of the beam 110 open into the manifolds 3, at their ends. Said beam 110 may further comprise fins 112, positioned between the tubes 111.

Ledit échangeur de chaleur 100 pourra encore comprendre une entrée 120 pour l'entrée du premier fluide dans ledit échangeur de chaleur 100 et une sortie 130 pour la sortie du premier fluide de l'échangeur de chaleur 100, ici reliés respectivement à chacune des boites collectrices 3.Comme illustré aux figures la à 4d, ladite boite collectrice 3 comprend un couvercle 32 et une plaque collectrice 31 présentant chacun une direction principale d'extension longitudinale parallèle à une direction principale d'extension longitudinale de la boite collectrice 3. Le couvercle 32 et la plaque collectrice 31 sont avantageusement brasés l'un à l'autre. Ladite boite collectrice 3, ainsi formée, présente une forme générale sensiblement tubulaire et s'étend selon sa direction principale d'extension longitudinale entre deux extrémités de la boite collectrice 3, dites extrémités axiales.Said heat exchanger 100 may further comprise an inlet 120 for the inlet of the first fluid in said heat exchanger 100 and an outlet 130 for the outlet of the first fluid of the heat exchanger 100, here respectively connected to each of the collector boxes. 3. As shown in FIGS. 1a to 4d, said header box 3 comprises a cover 32 and a header plate 31 each having a principal direction of longitudinal extension parallel to a principal direction of longitudinal extension of the manifold 3. The cover 32 and the collector plate 31 are advantageously brazed to each other. Said manifold 3, thus formed, has a substantially tubular general shape and extends in its main direction of longitudinal extension between two ends of the manifold 3, said axial ends.

Ladite plaque collectrice 31 définit un fond 311 prolongé de deux flancs latéraux 310 de sorte que chaque flanc latéral 310 s'étend longitudinalement d'une extrémité axiale à l'autre de la boite collectrice 3. La plaque collectrice 31 présente, par exemple, une section transversale sensiblement en U. Lesdits flancs latéraux 310 s'étendent ici parallèlement l'un à l'autre et en vis-à-vis l'un de l'autre.Said collector plate 31 defines a bottom 311 extended by two lateral flanks 310 so that each lateral flank 310 extends longitudinally from one axial end to the other of the manifold 3. The manifold plate 31 has, for example, a cross section substantially U. These side flanks 310 extend here parallel to each other and vis-à-vis one another.

En outre, dans le fond 311 de la plaque collectrice 31, sont aménagés des orifices d'introduction 33, par exemple oblongs, tout du long de celui-ci. Lesdits orifices d'introduction 33 sont parallèles entre eux et s'étendent chacun orthogonalement à la direction d'extension de la boite collectrice 3. Lesdits orifices d'introduction 33 sont destinés à recevoir les extrémités correspondantes des tubes 111 du faisceau 110 de l'échangeur et pourront être bordés de collets 330.In addition, in the bottom 311 of the header plate 31, are introduced introduction ports 33, for example oblong, all along it. Said introduction orifices 33 are mutually parallel and each extend orthogonally to the direction of extension of the manifold 3. These insertion orifices 33 are intended to receive the ends corresponding tubes 111 of the beam 110 of the exchanger and may be flanked by collars 330.

Avantageusement, le couvercle 32 s'étend longitudinalement entre les deux extrémités axiales de la boite collectrice 3 et présente une section transversale sensiblement en U. Ledit couvercle 32 comprend une base 321, notamment prévue légèrement concave. Ladite base 321 est ici prolongée par des flancs latéraux 320, parallèles et en vis-à-vis l'un de l'autre, avantageusement plus courts que ceux de la plaque collectrice 31. Les flancs latéraux 320 du couvercle 32 s'étendent longitudinalement d'une extrémité axiale à l'autre de la boite collectrice 3.Advantageously, the cover 32 extends longitudinally between the two axial ends of the header box 3 and has a substantially U-shaped cross section. Said cover 32 comprises a base 321, in particular provided slightly concave. Said base 321 is here extended by lateral flanks 320, parallel and vis-à-vis one of the other, advantageously shorter than those of the header plate 31. The lateral flanks 320 of the cover 32 extend longitudinally from one axial end to the other of the manifold 3.

Le fond 311 de la plaque collectrice 31 et la base 321 du couvercle 32 sont conçus pour être montés en vis-à-vis l'un de l'autre et de manière parallèle l'un à l'autre.The bottom 311 of the header plate 31 and the base 321 of the cover 32 are designed to be mounted opposite one another and parallel to each other.

On notera que la distance, dite largeur, séparant les deux flancs latéraux 320 du couvercle 32 est plus faible que la distance, dite largeur, séparant les deux flancs latéraux 310 de la plaque collectrice 31. Autrement dit, la dimension, notamment en largeur du couvercle 32, est telle que les flancs latéraux 320 du couvercle 32 s'ajustent entre les flancs latéraux 310 de la plaque collectrice 31. De cette manière, chaque flanc latéral 320 du couvercle 32 est en contact avec un flanc latéral 310 de la plaque collectrice 31. Les orientations des U formant respectivement la plaque collectrice 31 et le couvercle 32 sont ici opposées.It will be noted that the distance, called the width, separating the two lateral flanks 320 from the cover 32 is smaller than the distance, called the width, separating the two lateral flanks 310 from the collecting plate 31. In other words, the dimension, especially in width of the cover 32, is such that the lateral flanks 320 of the cover 32 fit between the lateral flanks 310 of the collector plate 31. In this manner, each lateral flank 320 of the cover 32 is in contact with a lateral flank 310 of the collector plate 31. The orientations of the U forming respectively the manifold plate 31 and the cover 32 are here opposite.

L'assemblage du couvercle 32 et de la plaque collectrice 31 définit un espace intérieur de la boite collectrice 3 dans lequel est amené à circuler ledit premier fluide. De par une forme emboîtée des U de la plaque collectrice 31 et du couvercle 32, la section transversale de la boite collectrice 3 est sensiblement ovale ou rectangulaire à coins arrondis.The assembly of the cover 32 and the collector plate 31 defines an interior space of the manifold 3 in which is circulated said first fluid. By a nested form of the U of the manifold plate 31 and the cover 32, the cross section of the header box 3 is substantially oval or rectangular with rounded corners.

Le couvercle 32 et la plaque collectrice 31 sont sertis puis brasés l'un à l'autre au niveau des flancs latéraux 310, 320 de manière à garantir une solidarisation et une étanchéité entre le couvercle 32 et la plaque collectrice 31. En particulier, ledit sertissage pourra être effectué par sertissage d'une partie de chaque flanc latéral 310 de la plaque collectrice 31 sur un des flancs latéraux 320 du couvercle 32.The cover 32 and the collector plate 31 are crimped and then brazed to one another at the side flanks 310, 320 so as to ensure a connection and a seal between the cover 32 and the collector plate 31. In particular, said crimping can be done by crimping a part of each lateral flank 310 of the header plate 31 on one of the lateral flanks 320 of the cover 32.

Des cloisons de fermeture sont avantageusement prévues à chacune des extrémités axiales de la boite collectrice 3 pour fermer celle-ci.Closing walls are advantageously provided at each of the axial ends of the header box 3 to close it.

Selon l'invention, ladite boite collectrice 3 est munie de protubérances 2 de maintien en position d'une cloison de séparation 7. Les protubérances 2 sont par exemple disposées sur l'un ou l'autre des flancs latéraux 310 de la plaque collectrice 31.According to the invention, said manifold box 3 is provided with protuberances 2 for holding in position a partition wall 7. The protuberances 2 are for example arranged on one or the other of the lateral flanks 310 of the header plate 31 .

Lesdites protubérances 2 sont par exemple des ergots faisant saillie vers ledit espace intérieur de la boite collectrice 3. Lesdites protubérances 2 sont avantageusement disposées par paires de protubérances 2, de sorte que ladite cloison de séparation 7 est conçue pour s'engager entre les protubérances 2 d'une même paire de protubérances 2. Les protubérances 2 d'une même paire de protubérances 2 sont avantageusement, sur un même flanc latéral 310 de la boite collectrice 3, séparées l'une de l'autre par une distance sensiblement égale à une épaisseur de la cloison de séparation 7 de manière à permettre l'insertion et le maintien de ladite cloison de séparation 7. Avantageusement, afin de faciliter l'insertion de la cloison de séparation 7 et pour permettre un blocage de celle-ci, lesdites protubérances 2 d'une même paire de protubérances sont alignées sur une même droite parallèle à la direction principale d'extension longitudinale de la boite collectrice 3.Said protuberances 2 are, for example, lugs projecting towards said interior space of the manifold box 3. Said protuberances 2 are advantageously arranged in pairs of protuberances 2, so that said partition wall 7 is designed to engage between the protuberances 2 of the same pair of protuberances 2. The protuberances 2 of the same pair of protuberances 2 are advantageously, on the same lateral flank 310 of the manifold 3, separated from one another by a distance substantially equal to one thickness of the partition wall 7 so as to allow insertion and maintenance of said partition wall 7. Advantageously, to facilitate the insertion of the partition wall 7 and to allow blocking thereof, said protuberances 2 of the same pair of protuberances are aligned on the same straight line parallel to the main direction of longitudinal extension of the collectric box e 3.

Avantageusement, la boite collectrice 3 est munie d'au moins deux paires de protubérances 2 agencées en vis-à-vis l'une de l'autre par rapport à un plan de symétrie de ladite boite collectrice 3. Comme illustré aux figures 1b, 2b, 3b et 4b, lesdites paires de protubérances 2 sont par exemple agencées chacune sur un flanc latéral 310 de la plaque collectrice 31. Ladite cloison de séparation 7 est conçue pour être maintenue en position par l'une et l'autre de ces paires de protubérances 2, ladite cloison de séparation 7 étant insérée entre les protubérances 2 de chaque paire de protubérances 2. Lesdites protubérances 2 sont également conçues pour permettre un blocage de ladite cloison de séparation 7 en translation selon la direction principale d'extension longitudinale de la boite collectrice 3.Advantageously, the manifold 3 is provided with at least two pairs of protuberances 2 arranged vis-à-vis one another with respect to a plane of symmetry of said manifold 3. As illustrated in FIGS. figures 1b , 2b , 3b and 4b , said pairs of protuberances 2 are for example each arranged on a lateral flank 310 of the collector plate 31. Said partition wall 7 is designed to be held in position by one and the other of these pairs of protuberances 2, said separating partition 7 being inserted between the protuberances 2 of each pair of protuberances 2. Said protuberances 2 are also designed to allow blockage of said partition wall 7 in translation along the main direction of longitudinal extension of the manifold 3.

Comme illustré aux figures 4a à 4c, lesdites protubérances 2 sont par exemple de forme cylindrique, ladite forme cylindrique permettant une insertion rapide de la cloison de séparation 7 entre l'une et l'autre des protubérances 2 d'une même paire.As illustrated in Figures 4a to 4c , said protuberances 2 are for example of cylindrical shape, said cylindrical shape allowing rapid insertion of the partition wall 7 between one and the other of the protuberances 2 of the same pair.

Alternativement, comme illustré aux figures 1b, 2b et 3b, lesdites protubérances d'une même paire de protubérances 2 présentent la forme d'un prisme triangulaire et présentent chacune une face plane, dite face de contact, lesdites faces de contact étant orientées parallèlement à un plan orthogonal à la direction principale d'extension longitudinale de la boite collectrice 3 et étant disposées en vis-à-vis l'une de l'autre. Chacune desdites faces de contact des protubérances est conçue pour être en contact avec ladite cloison de séparation 7.Alternatively, as illustrated in figures 1b , 2b and 3b , said protuberances of the same pair of protuberances 2 have the shape of a triangular prism and each have a planar face, said contact face, said contact faces being oriented parallel to a plane orthogonal to the main direction of longitudinal extension of the manifold 3 and being arranged vis-à-vis one another. Each of said contact faces of the protuberances is adapted to be in contact with said partition wall 7.

On notera également que lesdites protubérances 2 sont par exemple conçues et agencées de manière à servir de butées de positionnement entre le couvercle 32 et la plaque collectrice 31, notamment avant un brasage de l'un avec l'autre. Ainsi, avantageusement, le couvercle 32 et la plaque collectrice 31 pourront être agencés de sorte qu'un bord longitudinal des flancs latéraux 320 du couvercle 32 repose sur lesdites protubérances 2. Cette configuration permet de faciliter le positionnement respectif du couvercle 32 et de la plaque collectrice 31 avant brasage de l'un avec l'autre.Note also that said protuberances 2 are for example designed and arranged to serve as positioning stops between the cover 32 and the header plate 31, in particular before brazing with each other. Thus, advantageously, the cover 32 and the collector plate 31 may be arranged so that a longitudinal edge of the lateral flanks 320 of the cover 32 rests on said protuberances 2. This configuration makes it easier to position the cover 32 and the plate respectively. collector 31 before brazing with each other.

On note encore qu'alternativement les protubérances 2 pourront être agencées ailleurs que sur les flancs latéraux 310 de la plaque collectrice 31, par exemple sur la base 311 ou au niveau du couvercle 32.It will also be noted that, alternatively, the protuberances 2 may be arranged elsewhere than on the lateral flanks 310 of the collecting plate 31, for example on the base 311 or at the level of the cover 32.

Ladite cloison de séparation 7 est conçue pour séparer ledit espace intérieur de la boite collectrice 3 en au moins deux compartiments de manière à permettre une circulation du premier fluide dans l'échangeur de chaleur 100 en plusieurs passes.Said partition 7 is designed to separate said interior space of the header box 3 in at least two compartments so as to allow a circulation of the first fluid in the heat exchanger 100 in several passes.

Ladite cloison de séparation 7 est avantageusement une paroi présentant deux faces planes 71, 72 parallèles l'une à l'autre. Lesdites faces planes 71, 72 sont séparées l'une de l'autre, et reliées l'une à l'autre, par une face latérale périphérique 70. Lesdites faces planes 71, 72 de la cloison de séparation 7 sont destinées à être en contact avec ledit premier fluide. Ladite face latérale périphérique 70 de la cloison de séparation 7 est, elle, conçue pour être en contact avec des parois intérieures de la boite collectrice 3. On définit pour la suite une épaisseur de la cloison de séparation 7 comme la distance, selon une direction perpendiculaire aux deux faces planes 71, 72, séparant lesdites deux faces planes. Ladite cloison de séparation 7 est avantageusement de forme sensiblement plane et de faible épaisseur.Said partition 7 is advantageously a wall having two flat faces 71, 72 parallel to one another. Said flat faces 71, 72 are separated from one another, and connected to one another, by a peripheral lateral face 70. Said planar faces 71, 72 of the partition wall 7 are intended to be in contact with each other. contact with said first fluid. Said peripheral lateral face 70 of the partition wall 7 is, it, designed to be in contact with the inner walls of the manifold 3. The following is a definition of the partition wall 7 as the distance, in one direction perpendicular to the two planar faces 71, 72, separating said two planar faces. Said partition 7 is advantageously of substantially flat shape and thin.

Avantageusement, comme illustré aux figures 1d, 2d, 3d et 4d, les faces de contact des protubérances 2 sont destinées à être en contact avec une partie des faces planes 71, 72 des cloisons de séparation 7.Advantageously, as illustrated in figures 1d , 2d , 3D and 4d , the contact faces of the protuberances 2 are intended to be in contact with a part of the flat faces 71, 72 of the partition walls 7.

Ladite cloison de séparation 7 est conçue pour être positionnée entre deux protubérances 2 et orientée sensiblement dans un plan orthogonal à la direction principale d'extension longitudinale de la boite collectrice 3. Autrement dit, lorsque la cloison de séparation 7 est en position dans la boite collectrice 3, les faces planes 71, 72 de ladite cloison de séparation 7 sont orientées de manière perpendiculaire à la direction principale d'extension longitudinale de la boite collectrice 3. Une fois mise en place entre lesdites protubérances 2 d'une même paire de protubérances 2, ladite cloison de séparation 7 est configurée pour limiter voire empêcher une circulation du premier fluide de part et d'autre de ladite cloison de séparation 7 dans l'espace intérieur de la boite collectrice 3.Said partition 7 is designed to be positioned between two protuberances 2 and oriented substantially in a plane orthogonal to the main direction of longitudinal extension of the manifold 3. In other words, when the partition wall 7 is in position in the box 3, the flat faces 71, 72 of said partition wall 7 are oriented perpendicular to the main direction of longitudinal extension of the manifold 3. Once placed between said protuberances 2 of the same pair of protuberances 2, said partition wall 7 is configured to limit or prevent a flow of the first fluid on either side of said partition wall 7 in the interior of the header box 3.

Avantageusement, la cloison de séparation 7 présente un contour de forme sensiblement identique à la forme d'une section transversale intérieure de la boite collectrice 3. Autrement dit, la cloison de séparation 7 est conçue pour coopérer par complémentarité de forme avec les parois intérieures de la boite collectrice 3 de manière à être brasée à celles-ci. Ainsi, la cloison de séparation 7 présente une première partie en contact avec un contour intérieur du couvercle 32 et une seconde partie en contact avec un contour intérieur de la plaque collectrice 31, la seconde partie définissant des épaulements latéraux en contact avec les bords longitudinaux du couvercle 32, ce qui immobilise la cloison en rotation, avant brasage. Autrement dit encore, la face latérale périphérique 70 de la cloison de séparation 7 est destinée, une fois le couvercle 32 brasé à la plaque collectrice 31, à être intégralement en contact avec ledit couvercle 32 et avec ladite plaque collectrice 31. Cette forme de la cloison de séparation 7 permet notamment d'obtenir une séparation étanche entre les deux compartiments que sépare ladite cloison de séparation 7 même si de légères fuites peuvent survenir d'un compartiment à un autre.Advantageously, the partition wall 7 has a contour of substantially identical shape to the shape of an internal cross section of the manifold 3. In other words, the partition wall 7 is designed to cooperate by complementary shape with the inner walls of the manifold 3 so as to be brazed to them. Thus, the partition wall 7 has a first portion in contact with an inner contour of the cover 32 and a second portion in contact with an inner contour of the header plate 31, the second portion defining lateral shoulders in contact with the longitudinal edges of the cover 32, which immobilizes the partition in rotation, before brazing. In other words, the peripheral lateral face 70 of the partition wall 7 is intended, once the cover 32 is brazed to the collector plate 31, to be in full contact with said cover 32 and with said collector plate 31. This form of the separating partition 7 allows in particular to obtain a sealed separation between the two compartments that separates said partition wall 7 even if slight leaks can occur from one compartment to another.

Avantageusement, ladite cloison de séparation 7 est conçue pour être disposée, dans l'espace intérieur de la boite collectrice 3, entre deux orifices voisins d'introduction 33 des tubes 111.Advantageously, said partition wall 7 is designed to be disposed, in the interior space of the manifold box 3, between two adjacent introduction orifices 33 of the tubes 111.

Selon l'invention, la boite collectrice 3 est munie d'au moins un orifice de contrôle 1. Ledit orifice de contrôle 1 est conçu de manière à permettre une fuite dudit premier fluide vers l'extérieur de la boite collectrice 3 lorsque ladite boite collectrice 3 est dépourvue de l'une desdites cloisons de séparation 7, ledit orifice de contrôle 1 étant conçu pour être obturé par ladite cloison de séparation 7 lorsqu'elle est effectivement présente. En particulier, ledit orifice de contrôle 1 est conçu pour être obturé par ladite cloison de séparation 7 lorsque celle-ci est disposée entre lesdites protubérances 2.According to the invention, the manifold 3 is provided with at least one control orifice 1. Said control orifice 1 is designed to allow leakage of said first fluid towards the outside of the manifold 3 when said manifold 3 is devoid of one of said partition walls 7, said control port 1 being designed to be closed by said partition wall 7 when it is actually present. In particular, said control orifice 1 is designed to be closed by said partition wall 7 when it is disposed between said protuberances 2.

Il est à noter que lesdits orifices de contrôle 1 permettent un contrôle visuel de la présence ou de l'absence de cloison de séparation 7 depuis l'espace extérieur de la boite collectrice 3, par exemple par un opérateur de montage et ce même une fois la plaque collectrice 31 et le couvercle 32 brasés l'un à l'autre. Un test d'étanchéité permettra également de vérifier la présence ou l'absence de ladite cloison de séparation 7.It should be noted that said control orifices 1 allow a visual check of the presence or absence of partition wall 7 from the outer space of the header box 3, for example by a mounting operator, even once. the manifold plate 31 and the lid 32 brazed to each other. A leak test will also verify the presence or absence of said partition wall 7.

Lesdits orifices de contrôle 1 sont par exemple disposés sur les flancs latéraux 310 de la plaque collectrice 31. Alternativement, lesdits orifices de contrôle 1 pourront être disposés à tout endroit leur permettant d'être obturés par l'insertion de ladite cloison de séparation 7, que ce soit au niveau de la plaque collectrice 31 ou au niveau du couvercle 32.Said inspection orifices 1 are for example arranged on the lateral flanks 310 of the collector plate 31. Alternatively, said control orifices 1 may be arranged at any place enabling them to be closed by the insertion of said partition wall 7, either at the level of the collector plate 31 or at the level of the cover 32.

Lesdits orifices de contrôle 1 sont avantageusement conçus de manière à traverser de part et d'autre lesdits flancs latéraux 310 de la boite collectrice 3, de manière à permettre une circulation dudit premier fluide entre l'extérieur et ledit espace intérieur de la boite collectrice 3 lorsque la boite collectrice 3 est dépourvue de ladite cloison de séparation 7. Chacun desdits orifices de contrôle 1 pourra par exemple être obtenu par perforation, par perçage ou par crevage de la plaque collectrice 31.Said control orifices 1 are advantageously designed so as to cross on either side said lateral flanks 310 of the manifold 3, so as to allow a circulation of said first fluid between the outside and said inside space of the manifold 3 when the collecting box 3 is devoid of said partition wall 7. Each of said control orifices 1 may for example be obtained by perforation, by drilling or by puncturing the collector plate 31.

Selon l'art antérieur, comme illustré aux figures la à 1d, la boite collectrice 3 est munie de deux orifices de contrôle 1, chaque orifice de contrôle 1 étant disposé sur l'un des flancs latéraux 310 de la plaque collectrice 31, entre les deux protubérances 2 d'une même paire de protubérances. Plus précisément, ici, lesdites protubérances 2 d'une même paire de protubérances 2 sont séparées l'une de l'autre par ledit orifice de contrôle 1. Autrement dit, chacune des protubérances 2 d'une même paire de protubérances 2 et ledit orifice de contrôle 1 sont tous sensiblement alignés le long d'une même droite parallèle à la direction principale d'extension longitudinale de la boite collectrice 3.According to the prior art, as illustrated in FIGS. 1a to 1d, the manifold 3 is provided with two control orifices 1, each control orifice 1 being disposed on one of the lateral flanks 310 of the collector plate 31, between the two protuberances 2 of the same pair of protuberances. More specifically, here, said protuberances 2 of the same pair of protuberances 2 are separated from each other by said control orifice 1. In other words, each of the protuberances 2 of the same pair of protuberances 2 and said orifice 1 are all substantially aligned along the same straight line parallel to the main direction of longitudinal extension of the manifold 3.

Chaque orifice de contrôle 1 débouche ici dans une cuvette 10, formée sur une face extérieure de ladite boite collectrice 3 par des pans inclinés desdites protubérances 2.Each control orifice 1 opens here into a bowl 10, formed on an outer face of said manifold 3 by inclined faces of said protuberances 2.

On note que lesdits deux orifices de contrôle 1 sont disposés en vis-à-vis l'un de l'autre, par exemple pour faciliter un contrôle visuel de la présence ou de l'absence de la cloison de séparation 7.It should be noted that said two control orifices 1 are arranged facing each other, for example to facilitate visual inspection of the presence or absence of the partition wall 7.

Comme illustré aux figures la à 1d, ladite cloison de séparation 7 est conçue pour être agencée au niveau desdits orifices de contrôle 1. En particulier, chacun desdits orifices de contrôle 1 est conçu pour être obturé par une partie de la face latérale périphérique 70 de la cloison de séparation 7.As illustrated in FIGS. 1a to 1d, said partition wall 7 is designed to be arranged at said control orifices 1. In particular, each of said control orifices 1 is designed to be closed off by a part of the peripheral lateral face 70 of partition wall 7.

Comme illustré aux figures 1b et 1c, il est à noter également qu'afin de ne pas altérer l'étanchéité de la boite collectrice 3, la dimension la plus importante d'une section transversale de l'orifice de contrôle 1, au niveau d'une zone d'obturation de l'orifice de contrôle 1 par la cloison de séparation 7, est sensiblement égale à l'épaisseur de ladite cloison de séparation 7.As illustrated in Figures 1b and 1c , it should also be noted that in order not to alter the tightness of the header box 3, the largest dimension of a cross section of the control orifice 1, at a zone of closure of the control orifice 1 by the partition wall 7, is substantially equal to the thickness of said partition wall 7.

Avantageusement, ledit orifice de contrôle 1 débouche dans un ou plusieurs canaux 11 formés par une épaisseur de matière 12 de ladite boite collectrice 3 faisant butée radiale pour ladite cloison de séparation 7.Advantageously, said control orifice 1 opens into one or more channels 11 formed by a material thickness 12 of said manifold 3 forming a radial stop for said partition wall 7.

Comme illustré aux figures 2a à 2d, lesdits orifices de contrôle 1 sont disposés entre les protubérances 2 d'une même paire de protubérances 2. Ici, ledit canal 11 s'étend cette fois radialement à travers ladite épaisseur de matière 12. Avantageusement, les deux protubérances 2 d'une même paire de protubérances 2 et l'un desdits orifices de contrôle 1 sont ici alignés le long d'une même droite parallèle à la direction principale d'extension longitudinale de la boite collectrice 3.As illustrated in Figures 2a to 2d , said control orifices 1 are arranged between the protuberances 2 of the same pair of protuberances 2. Here, said channel 11 this time extends radially through said thickness of material 12. Advantageously, the two protuberances 2 of the same pair of protuberances 2 and one of said control orifices 1 are here aligned along the same straight line parallel to the principal direction of longitudinal extension of the manifold 3.

A nouveau, chacun desdits orifices de contrôle 1 est configuré pour être obturé par une partie de la face latérale périphérique 70 de la cloison de séparation 7.Again, each of said control ports 1 is configured to be closed by a portion of the peripheral side face 70 of the partition wall 7.

Lesdits orifices de contrôle 1 présentent ici une section transversale, c'est-à-dire selon un plan parallèle au flanc latéral 310, de forme sensiblement circulaire. Alternativement, lesdits orifices de contrôle 1 pourront présenter une section transversale de forme différente par exemple oblongue, triangulaire ou encore rectangulaire.Said control orifices 1 here have a cross section, that is to say in a plane parallel to the lateral flank 310, of substantially circular shape. Alternatively, said control orifices 1 may have a cross section of different shape for example oblong, triangular or rectangular.

Comme illustré aux figures 3a à 3d, lesdits canaux 11 s'étendent de part et d'autre de ladite épaisseur de matière 12. Lesdits canaux 11 s'étendent entre ladite épaisseur de matière 12 et les pans inclinés desdites protubérances 2.As illustrated in Figures 3a to 3d said channels 11 extend on either side of said thickness of material 12. Said channels 11 extend between said thickness of material 12 and the inclined faces of said protuberances 2.

Comme illustré aux figures 4a à 4c, la boite collectrice 3 est munie de deux orifices de contrôle 1, chaque orifice de contrôle 1 étant disposé sur l'un des flancs latéraux 310 de la plaque collectrice 31. Ici, lesdits orifices de contrôle 1 présentent sensiblement la forme d'un cylindre de révolution. Chacun des deux orifices de contrôle 1 est disposé, sur l'un des flancs latéraux 310, à proximité d'une paire de protubérances 2.As illustrated in Figures 4a to 4c , the manifold 3 is provided with two control orifices 1, each control orifice 1 being disposed on one of the lateral flanks 310 of the manifold plate 31. Here, said control orifices 1 have substantially the shape of a cylinder of revolution. Each of the two control orifices 1 is arranged, on one of the lateral flanks 310, near a pair of protuberances 2.

Selon l'invention, lesdits orifices de contrôle 1 ne sont pas, ici, alignés avec les deux protubérances 2 d'une même paire de protubérances 2 à proximité desquelles chaque orifice de contrôle 1 est agencé. Autrement dit, chacun desdits orifices de contrôle 1 est décalé transversalement par rapport aux protubérances 2 d'une même paire de protubérances 2. Chaque orifice de contrôle 1 est équidistant de l'une et l'autre des protubérances 2 d'une même paire de protubérances 2 à proximité de laquelle il est situé.According to the invention, said control orifices 1 are not, here, aligned with the two protuberances 2 of the same pair of protuberances 2 near which each control port 1 is arranged. In other words, each of said control orifices 1 is shifted transversely with respect to the protuberances 2 of the same pair of protuberances 2. Each control orifice 1 is equidistant from one and the other of the protuberances 2 of the same pair of protuberances 2 near which it is located.

Comme déjà dit, les protubérances 2 sont avantageusement de forme sensiblement cylindrique de sorte qu'une fois la cloison de séparation 7 insérée entre chaque paire de protubérances 2, ladite cloison de séparation 7 est bloquée en translation selon ladite direction principale d'extension longitudinale de la boite collectrice 3.As already mentioned, the protuberances 2 are advantageously of substantially cylindrical shape so that once the partition 7 has been inserted between each pair of protuberances 2, the said partition 7 is locked in translation along the said principal direction of longitudinal extension of the collector box 3.

Claims (13)

  1. Collector box (3), in particular for a heat exchanger (100) in a motor vehicle, said heat exchanger (100) being designed to allow heat exchange with a first fluid, said collector box (3) being provided with at least one control orifice (1) and at least one protuberance (2) for keeping in position a dividing partition (7) designed to divide an interior space of the collector box (3) into several compartments, said control orifice (1) being able to allow a leak of said first fluid towards the outside of the collector box (3) when said collector box (3) does not have said dividing partition (7), said control orifice (1) being designed to be closed by said dividing partition (7), characterized in that said control orifice is offset transversely with respect to the protuberances (2) of one and the same pair of protuberances (2).
  2. Collector box (3) according to the preceding claim, wherein said protuberances (2) are designed to project towards said interior space of said collector box (3).
  3. Collector box (3) according to either one of the preceding claims, wherein said protuberances (2) are studs.
  4. Collector box (3) according to any one of the preceding claims, wherein said protuberances (3) are disposed in pairs, such that the dividing partition (7) is designed to be fitted between two protuberances (2) of one and the same pair.
  5. Collector box (3) according to the preceding claim, wherein said control orifice (1) is arranged equidistantly from each of the protuberances (2) of one and the same pair of protuberances (2).
  6. Collector box (3) according to any one of the preceding claims, wherein said protuberances (2) are cylindrical.
  7. Collector box (3) according to any one of Claims 1 to 5, wherein said protuberances (2) are in the form of a triangular prism.
  8. Collector box (3) according to any one of the preceding claims, wherein said control orifice (1) leads into a dish (10) formed on an exterior face of said collector box (3) by inclined facets of said protuberances (2).
  9. Collector box (3) according to any one of the preceding claims, wherein said control orifice (1) leads into one or more ducts (11) formed by a thickness of material (12) of said collector box (3) that acts as a radial stop for said dividing partition (7) .
  10. Collector box (3) according to Claim 9, wherein said duct (11) extends radially through said thickness of material (12).
  11. Collector box (3) according to Claim 9, wherein said ducts (11) extend on either side of said thickness of material (12).
  12. Collector box (3) according to any one of the preceding claims, wherein said control orifice (1) is intended to be closed by an edge part of said dividing partition (7).
  13. Heat exchanger (100) comprising a collector box (3) according to any one of the preceding claims.
EP16712830.5A 2015-03-24 2016-03-24 Collection box for heat exchanger of a motor vehicle air-conditioning circuit, and heat exchanger including such a collection box Active EP3274643B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1552441A FR3034185B1 (en) 2015-03-24 2015-03-24 COLLECTOR BOX FOR HEAT EXCHANGER OF AIR CONDITIONING CIRCUIT OF MOTOR VEHICLE, AND HEAT EXCHANGER COMPRISING SUCH A COLLECTOR BOX.
PCT/EP2016/056531 WO2016151081A1 (en) 2015-03-24 2016-03-24 Collection box for heat exchanger of a motor vehicle air-conditioning circuit, and heat exchanger including such a collection box

Publications (2)

Publication Number Publication Date
EP3274643A1 EP3274643A1 (en) 2018-01-31
EP3274643B1 true EP3274643B1 (en) 2019-11-13

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ID=53758321

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Application Number Title Priority Date Filing Date
EP16712830.5A Active EP3274643B1 (en) 2015-03-24 2016-03-24 Collection box for heat exchanger of a motor vehicle air-conditioning circuit, and heat exchanger including such a collection box

Country Status (3)

Country Link
EP (1) EP3274643B1 (en)
FR (1) FR3034185B1 (en)
WO (1) WO2016151081A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2724915A1 (en) * 2018-03-16 2019-09-17 Valeo Termico Sa HEAT EXCHANGER FOR GASES AND ASSEMBLY PROCEDURE OF A HEAT EXCHANGER (Machine-translation by Google Translate, not legally binding)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04225796A (en) * 1990-12-27 1992-08-14 Nippondenso Co Ltd Tank for heat exchanger
JPH09269199A (en) * 1996-03-29 1997-10-14 Sanden Corp Heat exchanger
JPH09296992A (en) * 1996-04-30 1997-11-18 Sanden Corp Heat exchanger
JP2007101088A (en) * 2005-10-05 2007-04-19 Calsonic Kansei Corp Tank structure for heat exchanger
FR3008784B1 (en) * 2013-07-19 2017-12-29 Valeo Systemes Thermiques COLLECTOR COLLECTOR PLATE OF A HEAT EXCHANGER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2016151081A1 (en) 2016-09-29
FR3034185A1 (en) 2016-09-30
EP3274643A1 (en) 2018-01-31
FR3034185B1 (en) 2018-04-27

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