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EP3663695B1 - Collector making up a heat exchanger - Google Patents

Collector making up a heat exchanger Download PDF

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Publication number
EP3663695B1
EP3663695B1 EP18210197.2A EP18210197A EP3663695B1 EP 3663695 B1 EP3663695 B1 EP 3663695B1 EP 18210197 A EP18210197 A EP 18210197A EP 3663695 B1 EP3663695 B1 EP 3663695B1
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EP
European Patent Office
Prior art keywords
header
cavity
partition
projection
cover
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
EP18210197.2A
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German (de)
French (fr)
Other versions
EP3663695A1 (en
Inventor
Jean-Baptiste CUILLIER
Salim RABAHI
Lim-Suon Bun
Rongxin HE
Binglin Xu
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Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to EP18210197.2A priority Critical patent/EP3663695B1/en
Priority to PCT/EP2019/083496 priority patent/WO2020115043A1/en
Publication of EP3663695A1 publication Critical patent/EP3663695A1/en
Application granted granted Critical
Publication of EP3663695B1 publication Critical patent/EP3663695B1/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

Definitions

  • the present invention relates to a manifold constituting a heat exchanger. Its object is such a collector as well as a heat exchanger comprising such a collector.
  • a motor vehicle is currently equipped with a refrigerant fluid circuit for modifying a temperature of the air contained inside a passenger compartment of the motor vehicle.
  • the refrigerant circuit comprises at least one heat exchanger, such as a condenser, a gas cooler or an evaporator, which is arranged to allow a transfer of calories between the refrigerant circulating inside the heat exchanger. heat and a flow of air passing through it.
  • the heat exchanger comprises a plurality of tubes which are designed to be traversed by the air flow and which are interposed between two manifolds, including for example an inlet manifold for the refrigerant fluid inside the heat exchanger. heat and a coolant outlet manifold outside the heat exchanger, according to an exemplary embodiment of such a heat exchanger.
  • heat exchangers which are similar to the preamble of claim 1.
  • document [ EP0798530 A1 ] shows a heat exchanger having a reservoir (6) formed of at least a first and a second reservoir elements interconnected and at least one partition disposed in the reservoir to divide the interior of the reservoir into at least two chambers.
  • a pair of protrusions extending in a circumferential direction of the interior surface of the reservoir and disposed in an axial direction of the reservoir are provided on the interior surface of the first reservoir member to hold an edge portion of the partition between them.
  • the protrusions can be provided without forming a thinner and weaker part on the tank (6).
  • the partition can be easily and precisely arranged at a predetermined location in the tank by virtue of the function of the pair of projections.
  • the document [ EP1767889 A2 ] shows a condenser which includes a pair of reservoirs, at least one of the reservoirs having a communication hole, a condenser core disposed between the reservoirs and having fins and tubes in fluid connection with the reservoirs, and a connector having a hole connection.
  • a peripheral part of the communication hole is pressed into the connection hole to form a deburring part which is caulked on an inner face forming the connection hole so that the connector and the tank are temporarily fixed to each other. other, and the parts facing the reservoir and the connector are integrally fixed to one another by buckling.
  • the inner surface of the connection hole is provided with a retaining groove for receiving an inserted protrusion, formed on a part of the outer surface of the deburring part, for holding the connector on the tank.
  • An object of the present invention is to provide a manifold arranged to prevent any leakage of refrigerant fluid, external or internal, in particular from an optimized positioning of the partitions housed inside the manifolds of the heat exchanger.
  • a manifold of the present invention is a manifold for a heat exchanger.
  • the collector includes at least a collector plate and a cover, which together define an internal space.
  • the collector also includes at least one partition, which divides the internal space into two sections.
  • the collector has an internal face bordering the internal space and an external face oriented towards the outside of the collector.
  • the internal face comprises at least one housing for receiving the partition.
  • the internal face comprises at least one cavity and one projection, the projection being interposed between the cavity and the receiving housing of the partition and forms a means for holding the partition in position according to a partition plane which is orthogonal to a direction of longitudinal extension of the collector.
  • the present invention also relates to a heat exchanger comprising at least one such collector.
  • the present invention also relates to a refrigerant fluid circuit comprising at least one such heat exchanger.
  • the assembly method can comprise a fourth step of securing the cover and the separator plate, the partition being interposed between the cover and the collector plate.
  • the denominations longitudinal, transverse, lateral, vertical refer to the orientation, in an orthonormal reference Oxyz, of a heat exchanger 1 illustrated on figure 1 .
  • the Ox axis represents the longitudinal direction
  • the axis Oy represents the lateral direction
  • the axis Oz represents the transverse direction.
  • a longitudinal plane is parallel to the Oxz plane
  • a lateral plane is parallel to the Oyz plane
  • a transverse plane is parallel to an Oxy plane.
  • the heat exchanger 1 of the present invention extends generally inside a first plane P1 which is parallel to the transverse plane Oxy.
  • the heat exchanger 1 comprises a plurality of tubes 2 which are parallel to each other and to the lateral direction Oy.
  • the tubes 2 are interposed between two collectors 3 which are mutually parallel and extend along a first longitudinal axis of extension A1 which is parallel to the axis Ox.
  • one of the collectors 3 is equipped with an inlet 4 of a refrigerant 5, while the other of the collectors 3 is equipped with an outlet 6 of the refrigerant 5.
  • the same manifold 3 is capable of being provided with the inlet 4 and the outlet 6 of the coolant 5.
  • the heat exchanger 1 is part of a circuit inside which the refrigerant 5 circulates, the circuit being intended to equip a motor vehicle to modify a temperature of the air contained inside a passenger compartment of the vehicle. motor vehicle.
  • the heat exchanger 1 is indifferently a condenser, a gas cooler, an evaporator, or even a radiator, and is able to exchange calories with an air flow 7.
  • the air flow 7 passes through the heat exchanger 1, in particular by circulating between the tubes 2 according to a direction parallel to the Oz axis.
  • spacers 8, partially shown, are for example arranged between two adjacent tubes 2 .
  • the heat exchanger 1 is a heat exchanger having several passes 9 for the circulation of the refrigerant fluid 5 passing through the heat exchanger 1. It is understood in this that the refrigerant fluid 5 makes several passages from one to the other of the manifolds 3 from its admission inside the heat exchanger 1 via the inlet 4 to its evacuation outside the heat exchanger heat 1 via the outlet 6. In other words, the heat exchanger 1 is arranged so that the coolant 5 makes several round trips between each of the collectors 3.
  • each manifold 3 houses at least one partition 10 which is flat and which extends along a partition plane P2 parallel to the Oyz plane.
  • the partition 10 divides an internal space 11 delimited by the manifold 3 into two sections 11a, 11b located on either side of the partition 10.
  • the manifold 3 which delimits the internal space 11 accommodates at least one partition 10. separating the internal space 11 into two sections 11a, 11b.
  • the collector 3 has an internal face 12 which borders the internal space 11 and an external face 13 which is oriented towards the outside of the collector 3.
  • the manifold 3 comprises a cover 14 and a manifold plate 15 which, assembled together, delimit the internal space 11.
  • the manifold plate 15 is arranged to receive one end of each of the tubes 12 and allow circulation of the refrigerant fluid 5 from the manifold 3 to tubes 2 and vice versa.
  • the cover 14 comprising a cover base 14a and two cover flanks 14b on either side of the cover base 14a.
  • the cover 14 is generally arranged in a U, the cover bottom 14a forming the base of the U and the cover flanks 14b forming the branches of the U.
  • the collector plate 15 comprising a plate bottom 15a and two plate flanks 15b on either side of the plate bottom.
  • the collector plate 15 is also generally arranged in a U, the plate bottom 15a forming the base of the U and the plate flanks 15b forming the branches of the U.
  • the cover flanks 14b are inserted between the plate flanks 15b in close contact to jointly delimit the internal space 11.
  • the plate flanks 15b are inserted between the cover flanks 14b in close contact to jointly delimit the internal space 11.
  • the internal face 12 of the manifold 3 comprises at least one housing 16 for receiving the partition 10.
  • the housing 16 is for example arranged in a slot formed inside a plane parallel to the lateral plane Oyz.
  • the housing 16 is intended to receive a slice 17 of the partition 10.
  • the slice 17 of the partition 10 is the edge of the partition 10 which is of smaller dimension.
  • the internal face 12 of the collector 3, indifferently constituting the cover 14 or the collector plate 15, comprises at least one cavity 18 and a projection 19.
  • the projection 19 is interposed between the cavity 18 and the housing 16 for receiving the partition 10. It is understood that the projection 19 borders the housing 16 in order to immobilize the partition 10 inside the housing provided to receive the partition 10.
  • the projection 19 comes from the material of the internal face 12 of the collector 3. There is therefore a continuity of material between the internal face 12 of the collector 3 and the projection 19 which is obtained in particular from a deformation of the surface. 12 of the collector 3 during the formation of the cavity 18, this formation of the cavity 18 causing the formation of the projection 19.
  • the projection 19 is obtained simultaneously during the formation of the cavity from the deformation of the internal surface 12 of the collector 3, whether it is the internal surface 12 participating in the cover 14 as shown in the figures 3 and 5 or of the participating internal surface 12 of the collector plate 15, as shown in the figures 4 and 6 .
  • the cavity 18 and the projection 19 are respectively point deformations of the internal face 12 of the collector 3. It is understood in this that the cavity 18 and the projection 19 are extended over small surfaces of the internal face 12, and are for example obtained from a punching of the internal surface 12 in particular carried out using a punch at the tapered end.
  • the cavity 18 and the projection 19 are lateral deformations of the internal face 12 of the manifold 3, and are for example obtained with a punch, one end of which extends inside a lateral plane of the collector 3.
  • the cavity 18 is formed along a deformation axis A2 which is orthogonal to the direction of longitudinal extension A1 of the collector 3.
  • a depth P of the cavity 18 taken between the internal face 12 of the collector 3 and a bottom of the cavity 20 is less than a thickness E of the manifold 3 taken between the internal face 12 and the external face 13 of the manifold 3. In this case, the cavity 18 does not open out through the external face 13 of the manifold 3.
  • a depth P of the cavity 18 taken between the internal face 12 of the manifold 3 and a cavity bottom 20 is equal to a thickness E of the manifold 3 taken between the internal face 12 and the external face 13 of the manifold 3.
  • the cavity 18 opens out through the internal face 12 and the external face 13 of the manifold 3.
  • the cavity 18 can be a cutout of the cover 14 or of the collector plate 15.
  • the cover 14 comprising at least one cover flank 14b terminated by a cover slice 14c, the cavity 18 is provided at least straddling the cover slice 14c.
  • the collector plate 15 comprising at least one side of the plate 15b terminated by a wafer of plate 15c, the cavity 18 is provided at least astride the wafer of plate 15c.
  • a distance D taken between a proximal edge 21 of the housing 16 for receiving the partition 10 and the deformation axis A2 is equal to the thickness E of the manifold 3 to within +/- 10%.
  • the cavity 18 is made near the housing 16 for receiving the partition 10, so that the projection 19 resulting from the formation of the cavity 18 borders, or even encroaches on, the housing 16, so as to immobilize the partition 10 inside the housing 16 in a position such that the partition 10 is arranged perpendicular to the longitudinal axis of extension A1 of the manifold 3.
  • the cavities 18 and the projections 19 are four in number and are symmetrically distributed at the corners of a quadrilateral housing the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the cover 14 .
  • the cavities 18 and the projections 19 are two in number and are symmetrically distributed with respect to a center of symmetry 22 of the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the cover 14. A first pair of cavity and protrusion is thus provided on one side of the partition 10, and a second pair of cavity and protrusion is provided on the other side of the partition 10.
  • the cavities 18 and the projections 19 are four in number and are symmetrically distributed at the angles of a quadrilateral housing the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the plate collector 15.
  • the cavities 18 and the projections 19 are two in number and are symmetrically distributed with respect to a center of symmetry 22 of the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the the collector plate 15.
  • the cavities 18 of the embodiments of the figures 5 and 6 are obstructed by the presence of the collector plate 15, when these are formed in the cover 14. The same applies to the case where the cavities 18 are formed in the collector plate 15 and closed by the cover 14. In all In these cases, the cavity is configured to fill and be sealed by a layer of filler material present on the cover and / or on the collector plate, once the heat exchanger passes into the furnace.
  • the assembly process can be completed by a fourth step of securing the cover 14 and the separator plate 15, the partition 10 being interposed between the cover 14 and the collector plate 15.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

La présente invention concerne un collecteur constitutif d'un échangeur de chaleur. Elle a pour objet un tel collecteur ainsi qu'un échangeur de chaleur comprenant un tel collecteur.The present invention relates to a manifold constituting a heat exchanger. Its object is such a collector as well as a heat exchanger comprising such a collector.

Un véhicule automobile est couramment équipé d'un circuit de fluide réfrigérant pour modifier une température de l'air contenu à l'intérieur d'un habitacle du véhicule automobile. Le circuit de fluide réfrigérant comprend au moins un échangeur de chaleur, tel qu'un condenseur, un refroidisseur de gaz ou un évaporateur, qui est agencé pour permettre un transfert de calories entre le fluide réfrigérant circulant à l'intérieur de l'échangeur de chaleur et un flux d'air qui traverse ce dernier.A motor vehicle is currently equipped with a refrigerant fluid circuit for modifying a temperature of the air contained inside a passenger compartment of the motor vehicle. The refrigerant circuit comprises at least one heat exchanger, such as a condenser, a gas cooler or an evaporator, which is arranged to allow a transfer of calories between the refrigerant circulating inside the heat exchanger. heat and a flow of air passing through it.

L'échangeur de chaleur comprend une pluralité de tubes qui sont prévus pour être traversés par le flux d'air et qui sont interposés entre deux collecteurs, dont par exemple un collecteur d'entrée du fluide réfrigérant à l'intérieur de l'échangeur de chaleur et un collecteur de sortie du fluide réfrigérant hors de l'échangeur de chaleur, selon un exemple de réalisation d'un tel échangeur de chaleur.The heat exchanger comprises a plurality of tubes which are designed to be traversed by the air flow and which are interposed between two manifolds, including for example an inlet manifold for the refrigerant fluid inside the heat exchanger. heat and a coolant outlet manifold outside the heat exchanger, according to an exemplary embodiment of such a heat exchanger.

Il est connu de réaliser des échangeurs de chaleur présentant plusieurs passes de circulation du fluide réfrigérant parcourant l'échangeur de chaleur et de diviser à cet effet les collecteurs de l'échangeur de chaleur par des cloisons qui séparent les passes l'une de l'autre. On pourra par exemple se reporter au document WO2015/071069 qui décrit un collecteur du type susvisé.It is known to produce heat exchangers having several circulation passes for the refrigerant fluid passing through the heat exchanger and for this purpose to divide the collectors of the heat exchanger by partitions which separate the passes from one of the heat exchanger. other. For example, we can refer to the document WO2015 / 071069 which describes a collector of the aforementioned type.

Il est connu pour construire les échangeurs de chaleur qui sont similaires au préambule de la revendication 1. Par exemple, le document [ EP0798530 A1 ] montre un échangeur de chaleur ayant un réservoir (6) formé d'au moins un premier et un deuxième éléments de réservoir reliés entre eux et au moins une cloison disposée dans le réservoir pour diviser l'intérieur du réservoir en au moins deux chambres. Une paire de saillies s'étendant dans une direction circonférentielle de la surface intérieure du réservoir et disposées dans une direction axiale du réservoir sont prévues sur la surface intérieure du premier élément de réservoir pour maintenir une partie de bord de la cloison entre elles. Les saillies peuvent être fournies sans former une partie plus mince et plus faible sur la citerne (6). La cloison peut être disposée facilement et précisément à un endroit prédéterminé dans le réservoir grâce à la fonction de la paire de saillies.It is known to construct heat exchangers which are similar to the preamble of claim 1. For example, document [ EP0798530 A1 ] shows a heat exchanger having a reservoir (6) formed of at least a first and a second reservoir elements interconnected and at least one partition disposed in the reservoir to divide the interior of the reservoir into at least two chambers. A pair of protrusions extending in a circumferential direction of the interior surface of the reservoir and disposed in an axial direction of the reservoir are provided on the interior surface of the first reservoir member to hold an edge portion of the partition between them. The protrusions can be provided without forming a thinner and weaker part on the tank (6). The partition can be easily and precisely arranged at a predetermined location in the tank by virtue of the function of the pair of projections.

Le document [ EP1767889 A2 ] montre un condenseur qui comprend une paire de réservoirs, au moins un des réservoirs ayant un trou de communication, un noyau de condenseur disposé entre les réservoirs et ayant des ailettes et des tubes en liaison fluidique avec les réservoirs, et un connecteur ayant un trou de connexion. Une partie périphérique du trou de communication est pressée dans le trou de connexion pour former une partie d'ébarbage qui est calfeutrée sur une face intérieure formant le trou de connexion de sorte que le connecteur et le réservoir sont temporairement fixés l'un à l'autre, et les parties en regard du réservoir et du connecteur sont intégralement fixées l'une à l'autre par flambage. La surface intérieure du trou de connexion est pourvue d'une rainure de maintien destinée à recevoir une partie saillante insérée, formée sur une partie de la surface extérieure de la partie d'ébarbage, pour maintenir le connecteur sur le réservoir.The document [ EP1767889 A2 ] shows a condenser which includes a pair of reservoirs, at least one of the reservoirs having a communication hole, a condenser core disposed between the reservoirs and having fins and tubes in fluid connection with the reservoirs, and a connector having a hole connection. A peripheral part of the communication hole is pressed into the connection hole to form a deburring part which is caulked on an inner face forming the connection hole so that the connector and the tank are temporarily fixed to each other. other, and the parts facing the reservoir and the connector are integrally fixed to one another by buckling. The inner surface of the connection hole is provided with a retaining groove for receiving an inserted protrusion, formed on a part of the outer surface of the deburring part, for holding the connector on the tank.

Un but de la présente invention est de proposer un collecteur agencé pour interdire toutes fuites de fluide réfrigérant, externe ou interne, notamment à partir d'un positionnement optimisé des cloisons logées à l'intérieur des collecteurs de l'échangeur de chaleur.An object of the present invention is to provide a manifold arranged to prevent any leakage of refrigerant fluid, external or internal, in particular from an optimized positioning of the partitions housed inside the manifolds of the heat exchanger.

Un collecteur de la présente invention est un collecteur pour un échangeur de chaleur. Le collecteur comprend au moins une plaque collectrice et un couvercle, qui délimitent conjointement un espace interne. Le collecteur comprend aussi au moins une cloison, qui divise l'espace interne en deux sections. Le collecteur comporte une face interne bordant l'espace interne et une face externe orientée vers l'extérieur du collecteur. La face interne comprend au moins un logement de réception de la cloison.A manifold of the present invention is a manifold for a heat exchanger. The collector includes at least a collector plate and a cover, which together define an internal space. The collector also includes at least one partition, which divides the internal space into two sections. The collector has an internal face bordering the internal space and an external face oriented towards the outside of the collector. The internal face comprises at least one housing for receiving the partition.

Selon la présente invention, la face interne comporte au moins une cavité et une saillie, la saillie étant interposée entre la cavité et le logement de réception de la cloison et forme un moyen de maintien en position de la cloison selon un plan de cloison qui est orthogonal à une direction d'extension longitudinale du collecteur.According to the present invention, the internal face comprises at least one cavity and one projection, the projection being interposed between the cavity and the receiving housing of the partition and forms a means for holding the partition in position according to a partition plane which is orthogonal to a direction of longitudinal extension of the collector.

Le collecteur comprend avantageusement l'une quelconque au moins des caractéristiques suivantes, prise seule ou en combinaison :

  • le logement de réception de la cloison est plus particulièrement destiné à recevoir une tranche périphérique de la cloison. Ce logement peut par exemple prendre la forme d'une fente,
  • la saillie constitue un bourrelet émergeant de la face interne qui interdit une échappée de la cloison hors du logement prévu pour sa réception. La saillie forme ainsi un moyen qui bloque un pivotement sur elle-même de la cloison, de telle sorte que la cloison garantit une étanchéité entre les deux sections de l'espace interne que la cloison délimite. Ainsi, la cloison est immobilisée par la saillie à l'intérieur du logement, y compris lorsqu'un jeu est ménagé entre le logement de réception de la cloison et la cloison elle-même, pour faciliter la mise en place de celle-ci à l'intérieur du logement,
  • le couvercle comprenant un fond de couvercle et deux flancs de couvercle de part et d'autre du fond de couvercle, le logement, la cavité et la saillie peuvent par exemple être ménagés dans un flanc de couvercle ou dans les deux flancs de couvercle, le fond de couvercle étant par ailleurs exempt de ce logement de réception de la cloison,
  • la plaque collectrice comprenant un fond de plaque et deux flancs de plaque de part et d'autre du fond de plaque, le logement, la cavité et la saillie peuvent par exemple être ménagés dans un flanc de plaque ou dans les deux flancs de plaque, le fond de plaque étant par ailleurs exempt de ce logement de réception de la cloison,
  • la saillie est issue de matière de la face interne du collecteur. On comprend que la saillie est issue d'une déformation de la face interne du collecteur et qu'il existe une continuité de matière entre le collecteur et la saillie qui forment ensemble un élément monobloc et qui sont séparables l'une de l'autre qu'à partir d'une destruction de l'un et/ou de l'autre. On comprend aussi que le collecteur est réalisé en un matériau, de préférence métallique, dont la ductilité permet une déformation de la face interne du collecteur pour former la saillie à partie de la réalisation de la cavité,
  • un volume de la cavité est notamment supérieur ou égal à un volume de la saillie,
  • dans le cas où la saillie est générée à partir de la formation de la cavité au niveau de la face interne au moins, on comprend que la saillie est formée par un déplacement de matière préalablement située à la place de la cavité, cette matière étant déplacée depuis l'emplacement de la cavité pour former la saillie. Il en résulte que la saillie forme un obstacle à l'encontre d'un pivotement de la cloison à l'intérieur du logement prévu pour sa réception,
  • la cavité et la saillie sont des déformations ponctuelles de la face interne du collecteur. On comprend en cela que la cavité et la saillie sont localisées en un point de la face interne, la cavité étant par exemple réalisée à partir d'une insertion d'un poinçon comportant une extrémité effilée à l'intérieur de la face interne du collecteur. Le caractère ponctuel n'interdit pas la présence de plusieurs couples de cavité et saillie. En revanche, la cavité est une forme localisée de longueur et de largeur sensiblement identiques,
  • la cavité et la saillie sont des déformations latérales de la face interne du collecteur. On comprend en cela que la cavité et la saillie s'étendent latéralement dans l'épaisseur du collecteur à l'intérieur de plans sécants avec la face interne et la face externe du collecteur. La cavité est par exemple réalisée à partir d'une insertion d'un poinçon comportant une extrémité agencée en une tranche étendue selon un arc de cercle,
  • une profondeur de la cavité prise entre la face interne du collecteur et un fond de cavité est inférieure à une épaisseur du collecteur prise entre la face interne et la face externe du collecteur. Ces dispositions sont telles que la cavité ne débouche pas vers l'extérieur du collecteur, ce qui garantit une étanchéité du collecteur. En d'autres termes, la face externe du collecteur est dépourvue de déformation au droit de la cavité,
  • la cavité débouche à travers la face externe. Ces dispositions sont telles que la cavité forme un passage entre l'espace interne et l'extérieur du collecteur, ce passage étant obturé lors d'une opération de brasage de l'échangeur de chaleur réalisée ultérieurement à une étape de formation de la cavité à travers le collecteur. L'obturation de la cavité est notamment réalisée par l'un des flancs du couvercle lorsque la cavité est ménagée à travers l'un des flancs de la plaque collectrice ou bien l'obturation de la cavité est réalisée par l'un des flancs de la plaque collectrice lorsque la cavité est ménagée à travers l'un des flancs du couvercle,
  • le couvercle comprend au moins un fond de couvercle bordé par deux flancs de couvercle, au moins un des flancs de couvercle étant terminé par une tranche de couvercle, et la cavité est ménagée au moins à cheval sur la tranche de couvercle. Ces dispositions permettent de maintenir la cloison le plus loin possible du fond de couvercle, ce qui limite le risque que la cloison tourne dans la plaque collectrice,
  • la plaque collectrice comprend au moins un fond de plaque bordé par deux flancs de plaque, au moins un des flancs de plaque étant terminé par une tranche de plaque, et la cavité est ménagée au moins à cheval sur la tranche de plaque. Ces dispositions permettent de maintenir la cloison le plus loin possible du fond de plaque, ce qui limite le risque que la cloison tourne dans le couvercle,
  • la cavité est ménagée selon un axe de déformation qui est orthogonal à la direction d'extension longitudinale du collecteur,
  • une distance prise entre un bord proximal du logement de la cloison et l'axe de déformation est égale à l'épaisseur du couvercle à +/- 10 % près. Ces dispositions sont telles que la cavité est réalisée à une proximité telle du logement qu'elle permet à la saillie issue de la cavité de border le logement,
  • la face interne comporte au moins un couple de cavité et de saillie, voire plusieurs couples de cavité et de saillie,
  • au moins deux couples de cavité et de saillie sont répartis de part et d'autre de la cloison en étant ménagées sur un même flanc, qui est indifféremment un flan de couvercle ou un flanc de plaque. Dans un tel cas, un premier couple de cavité et de saillie est ménagé sur un flanc d'un premier côté de la cloison, tandis qu'un second couple de cavité et de saillie est ménagé sur ce même flanc, mais de l'autre côté de la cloison,
  • au moins deux couples de cavité et de saillie sont diamétralement opposées par rapport à la direction longitudinale d'extension du collecteur. Dans un tel cas, un premier couple de cavité et de saillie est ménagé sur un premier flanc d'un premier côté de la cloison, tandis qu'un second couple de cavité et de saillie est ménagé sur un deuxième flanc opposé au premier flanc par rapport au volume interne, ce second couple étant réalisé du même côté de la cloison que le premier couple,
  • au moins deux couples de cavité et de saillie, et avantageusement quatre couples, sont ménagées symétriquement par rapport à un centre de symétrie de la cloison. Dans un tel cas, un premier couple de cavité et de saillie est ménagé sur un premier flanc d'un premier côté de la cloison, tandis qu'un second couple de cavité et de saillie est ménagé sur un deuxième flanc opposé au premier flanc par rapport au volume interne, ce second couple étant réalisé de l'autre côté de la cloison par rapport au premier couple,
  • la face interne comporte au moins quatre couples cavités et quatre saillies qui sont répartis aux angles d'un quadrilatère logeant la cloison.
The collector advantageously comprises any one at least of the following characteristics, taken alone or in combination:
  • the housing for receiving the partition is more particularly intended to receive a peripheral edge of the partition. This housing can for example take the form of a slot,
  • the projection constitutes a bead emerging from the internal face which prevents the partition from escaping from the housing provided for its reception. The projection thus forms a means which blocks a pivoting on itself of the partition, so that the partition guarantees a seal between the two sections of the internal space that the partition delimits. Thus, the partition is immobilized by the projection inside the housing, including when a clearance is provided between the receiving housing of the partition and the partition itself, to facilitate the installation of the latter to the interior of the accommodation,
  • the cover comprising a cover base and two cover sides on either side of the cover base, the housing, the cavity and the projection can by for example be provided in a cover side or in the two cover sides, the cover bottom also being free from this housing for receiving the partition,
  • the collector plate comprising a plate bottom and two plate flanks on either side of the plate bottom, the housing, the cavity and the projection can for example be provided in a plate side or in the two plate sides, the base of the plate being moreover free from this housing for receiving the partition,
  • the protrusion comes from material from the internal face of the collector. It will be understood that the projection results from a deformation of the internal face of the collector and that there is a continuity of material between the collector and the projection which together form a single piece element and which are separable from one another which 'from a destruction of one and / or the other. It is also understood that the collector is made of a material, preferably metallic, the ductility of which allows a deformation of the internal face of the collector to form the projection from the production of the cavity,
  • a volume of the cavity is in particular greater than or equal to a volume of the projection,
  • in the case where the protrusion is generated from the formation of the cavity at the level of the internal face at least, it is understood that the protrusion is formed by a displacement of material previously located in place of the cavity, this material being displaced from the location of the cavity to form the protrusion. It follows that the projection forms an obstacle against a pivoting of the partition inside the housing provided for its reception,
  • the cavity and the projection are point deformations of the internal face of the collector. It is understood in this that the cavity and the projection are located at a point on the internal face, the cavity being for example made from an insertion of a punch having a tapered end inside the internal face of the manifold. . The punctual nature does not prevent the presence of several pairs of cavity and projection. On the other hand, the cavity is a localized shape of substantially identical length and width,
  • the cavity and the protrusion are lateral deformations of the internal face of the collector. It is understood in this that the cavity and the projection extend laterally in the thickness of the collector inside planes intersecting with the internal face and the external face of the collector. The cavity is for example made from an insertion of a punch having one end arranged in an extended slice along an arc of a circle,
  • a depth of the cavity taken between the internal face of the manifold and a cavity bottom is less than a thickness of the manifold taken between the internal face and the external face of the manifold. These arrangements are such that the cavity does not open out to the outside of the collector, which guarantees that the collector is leaktight. In other words, the external face of the collector is devoid of deformation in line with the cavity,
  • the cavity opens out through the external face. These arrangements are such that the cavity forms a passage between the internal space and the outside of the manifold, this passage being closed during a brazing operation of the heat exchanger carried out subsequently to a step of forming the cavity to. through the collector. The sealing of the cavity is in particular carried out by one of the sides of the cover when the cavity is formed through one of the sides of the collector plate or else the sealing of the cavity is carried out by one of the sides of the collector plate when the cavity is made through one of the sides of the cover,
  • the cover comprises at least one cover base bordered by two cover sides, at least one of the cover sides being terminated by a cover edge, and the cavity is provided at least straddling the cover edge. These arrangements make it possible to keep the partition as far as possible from the bottom of the cover, which limits the risk of the partition turning in the collector plate,
  • the collector plate comprises at least one plate bottom bordered by two plate sides, at least one of the plate sides being terminated by a plate edge, and the cavity is provided at least straddling the plate edge. These arrangements make it possible to keep the partition as far as possible from the bottom of the plate, which limits the risk of the partition turning in the cover,
  • the cavity is formed along a deformation axis which is orthogonal to the direction of longitudinal extension of the collector,
  • a distance taken between a proximal edge of the housing of the partition and the axis of deformation is equal to the thickness of the cover to within +/- 10%. These arrangements are such that the cavity is made so close to the housing that it allows the projection from the cavity to border the housing,
  • the internal face has at least one pair of cavity and protrusion, or even several pairs of cavity and protrusion,
  • at least two pairs of cavity and protrusion are distributed on either side of the partition, being provided on the same side, which is indifferently a cover blank or a plate side. In such a case, a first pair of cavity and projection is provided on a side of a first side of the partition, while a second pair of cavity and projection is provided on this same side, but on the other. side of the partition,
  • at least two pairs of cavity and projection are diametrically opposed with respect to the longitudinal direction of extension of the manifold. In such a case, a first pair of cavity and projection is formed on a first side of a first side of the partition, while a second pair of cavity and projection is formed on a second side opposite the first side by relative to the internal volume, this second pair being produced on the same side of the partition as the first pair,
  • at least two pairs of cavity and projection, and advantageously four pairs, are arranged symmetrically with respect to a center of symmetry of the partition. In such a case, a first pair of cavity and projection is formed on a first side of a first side of the partition, while a second pair of cavity and projection is formed on a second side opposite the first side by relative to the internal volume, this second pair being produced on the other side of the partition with respect to the first pair,
  • the internal face comprises at least four pairs of cavities and four projections which are distributed at the angles of a quadrilateral housing the partition.

La présente invention a également pour objet un échangeur de chaleur comprenant au moins un tel collecteur.The present invention also relates to a heat exchanger comprising at least one such collector.

La présente invention a également pour objet un circuit de fluide réfrigérant comprenant au moins un tel échangeur de chaleur.The present invention also relates to a refrigerant fluid circuit comprising at least one such heat exchanger.

La présente invention a également pour objet un procédé d'assemblage d'un tel collecteur qui comprend successivement au moins les étapes suivantes :

  • une première étape de réalisation du logement sur la face interne du collecteur,
  • une deuxième étape de mise en place de la cloison à l'intérieur du logement prévu pour sa réception,
  • une troisième étape de réalisation de la cavité et de la saillie à l'intérieur de la face interne du collecteur.
A subject of the present invention is also a method for assembling such a manifold which successively comprises at least the following steps:
  • a first step of making the housing on the internal face of the collector,
  • a second step of installing the partition inside the housing provided for its reception,
  • a third step of making the cavity and the projection inside the internal face of the collector.

Avantageusement, le procédé d'assemblage peut comprendre une quatrième étape de solidarisation du couvercle et de la plaque séparatrice, la cloison étant interposée entre le couvercle et la plaque collectrice.Advantageously, the assembly method can comprise a fourth step of securing the cover and the separator plate, the partition being interposed between the cover and the collector plate.

D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture de la description donnée ci-après à titre indicatif en relation avec des dessins dans lesquels :

  • la figure 1 est une vue de face d'un échangeur de chaleur de la présente invention,
  • la figure 2 est une vue partielle d'une coupe latérale de l'échangeur de chaleur illustré sur la figure 1,
  • les figures 3 à 6 sont des vues d'exemple de réalisation de l'échangeur de chaleur illustré sur la figure 2.
Other characteristics, details and advantages of the invention will emerge more clearly on reading the description given below by way of indication in relation to the drawings in which:
  • the figure 1 is a front view of a heat exchanger of the present invention,
  • the figure 2 is a partial view of a side section of the heat exchanger shown in figure 1 ,
  • the figures 3 to 6 are exemplary views of the heat exchanger illustrated in figure 2 .

Il faut tout d'abord noter que les figures exposent l'invention de manière détaillée pour mettre en œuvre l'invention, lesdites figures pouvant bien entendu servir à mieux définir l'invention le cas échéant.It should first of all be noted that the figures set out the invention in detail in order to implement the invention, said figures being able of course to serve to better define the invention if necessary.

Sur les figures, les dénominations longitudinale, transversale, latérale, verticale, se réfèrent à l'orientation, dans un repère orthonormé Oxyz, d'un échangeur de chaleur 1 illustré sur la figure 1. Dans ce repère, l'axe Ox représente la direction longitudinale, l'axe Oy représente la direction latérale, et l'axe Oz représente la direction transversale. Dans ce repère, un plan longitudinal est parallèle au plan Oxz, un plan latéral est parallèle au plan Oyz et un plan transversal est parallèle à un plan Oxy.In the figures, the denominations longitudinal, transverse, lateral, vertical, refer to the orientation, in an orthonormal reference Oxyz, of a heat exchanger 1 illustrated on figure 1 . In this frame, the Ox axis represents the longitudinal direction, the axis Oy represents the lateral direction, and the axis Oz represents the transverse direction. In this frame of reference, a longitudinal plane is parallel to the Oxz plane, a lateral plane is parallel to the Oyz plane and a transverse plane is parallel to an Oxy plane.

Sur la figure 1, l'échangeur de chaleur 1 de la présente invention s'étend globalement à l'intérieur d'un premier plan P1 qui est parallèle au plan transversal Oxy. L'échangeur de chaleur 1 comprend une pluralité de tubes 2 qui sont parallèles entre eux et à la direction latérale Oy. Les tubes 2 sont interposés entre deux collecteurs 3 qui sont parallèles entre eux et s'étendent selon un premier axe longitudinal d'extension A1 qui est parallèle à l'axe Ox.On the figure 1 , the heat exchanger 1 of the present invention extends generally inside a first plane P1 which is parallel to the transverse plane Oxy. The heat exchanger 1 comprises a plurality of tubes 2 which are parallel to each other and to the lateral direction Oy. The tubes 2 are interposed between two collectors 3 which are mutually parallel and extend along a first longitudinal axis of extension A1 which is parallel to the axis Ox.

Selon un exemple de réalisation, l'un des collecteurs 3 est équipé d'une arrivée 4 d'un fluide réfrigérant 5, tandis que l'autre des collecteurs 3 est équipé d'une sortie 6 du fluide réfrigérant 5. Selon un autre exemple de réalisation, le même collecteur 3 est susceptible d'être pourvu de l'arrivée 4 et de la sortie 6 du fluide réfrigérant 5.According to an exemplary embodiment, one of the collectors 3 is equipped with an inlet 4 of a refrigerant 5, while the other of the collectors 3 is equipped with an outlet 6 of the refrigerant 5. According to another example embodiment, the same manifold 3 is capable of being provided with the inlet 4 and the outlet 6 of the coolant 5.

L'échangeur de chaleur 1 est constitutif d'un circuit à l'intérieur duquel circule le fluide réfrigérant 5, le circuit étant destiné à équiper un véhicule automobile pour modifier une température d'un air contenu à l'intérieur d'un habitacle du véhicule automobile. Selon la position de l'échangeur de chaleur 1 à l'intérieur du circuit de fluide réfrigérant, selon la nature du fluide réfrigérant 5 et selon des modalités de fonctionnement du circuit de fluide réfrigérant, l'échangeur de chaleur 1 est indifféremment un condenseur, un refroidisseur de gaz, un évaporateur, voire un radiateur, et est apte à échanger des calories avec un flux d'air 7. Le flux d'air 7 traverse l'échangeur de chaleur 1, notamment en circulant entre les tubes 2 selon une direction parallèle à l'axe Oz. Pour faciliter un tel transfert de chaleur entre le fluide réfrigérant 5 contenu à l'intérieur des tubes 2 et le flux d'air 7 qui circule entre les tubes 2, des intercalaires 8, partiellement représentés, sont par exemple disposés entre deux tubes adjacents 2.The heat exchanger 1 is part of a circuit inside which the refrigerant 5 circulates, the circuit being intended to equip a motor vehicle to modify a temperature of the air contained inside a passenger compartment of the vehicle. motor vehicle. According to the position of the heat exchanger 1 inside the refrigerant circuit, according to the nature of the refrigerant 5 and according to the operating methods of the refrigerant circuit, the heat exchanger 1 is indifferently a condenser, a gas cooler, an evaporator, or even a radiator, and is able to exchange calories with an air flow 7. The air flow 7 passes through the heat exchanger 1, in particular by circulating between the tubes 2 according to a direction parallel to the Oz axis. To facilitate such a transfer of heat between the refrigerant 5 contained inside the tubes 2 and the air flow 7 which circulates between the tubes 2, spacers 8, partially shown, are for example arranged between two adjacent tubes 2 .

L'échangeur de chaleur 1 est un échangeur de chaleur présentant plusieurs passes 9 de circulation du fluide réfrigérant 5 parcourant l'échangeur de chaleur 1. On comprend en cela que le fluide réfrigérant 5 effectue plusieurs passages de l'un à l'autre des collecteurs 3 depuis son admission à l'intérieur de l'échangeur de chaleur 1 par l'intermédiaire de l'entrée 4 jusqu'à son évacuation hors de l'échangeur de chaleur 1 par l'intermédiaire de la sortie 6. Autrement dit, l'échangeur de chaleur 1 est agencé de manière à ce que le fluide réfrigérant 5 effectue plusieurs allers-retours entre chacun des collecteurs 3.The heat exchanger 1 is a heat exchanger having several passes 9 for the circulation of the refrigerant fluid 5 passing through the heat exchanger 1. It is understood in this that the refrigerant fluid 5 makes several passages from one to the other of the manifolds 3 from its admission inside the heat exchanger 1 via the inlet 4 to its evacuation outside the heat exchanger heat 1 via the outlet 6. In other words, the heat exchanger 1 is arranged so that the coolant 5 makes several round trips between each of the collectors 3.

A cet effet, chaque collecteur 3 loge au moins une cloison 10 qui est plane et qui s'étend selon un plan de cloison P2 parallèle au plan Oyz. La cloison 10 divise un espace interne 11 délimité par le collecteur 3 en deux sections 11a, 11b situées de part et d'autre de la cloison 10. Autrement dit, le collecteur 3 qui délimite l'espace interne 11 loge au moins une cloison 10 séparant en deux sections 11a, 11b l'espace interne 11.To this end, each manifold 3 houses at least one partition 10 which is flat and which extends along a partition plane P2 parallel to the Oyz plane. The partition 10 divides an internal space 11 delimited by the manifold 3 into two sections 11a, 11b located on either side of the partition 10. In other words, the manifold 3 which delimits the internal space 11 accommodates at least one partition 10. separating the internal space 11 into two sections 11a, 11b.

Le collecteur 3 comporte une face interne 12 qui borde l'espace interne 11 et une face externe 13 qui est orientée vers l'extérieur du collecteur 3.The collector 3 has an internal face 12 which borders the internal space 11 and an external face 13 which is oriented towards the outside of the collector 3.

Sur la figure 2, le collecteur 3 comprend un couvercle 14 et une plaque collectrice 15 qui, assemblés ensemble, délimitent l'espace interne 11. La plaque collectrice 15 est agencée pour recevoir une extrémité de chacun des tubes 12 et permettre une circulation du fluide réfrigérant 5 depuis le collecteur 3 vers les tubes 2 et vice-versa.On the figure 2 , the manifold 3 comprises a cover 14 and a manifold plate 15 which, assembled together, delimit the internal space 11. The manifold plate 15 is arranged to receive one end of each of the tubes 12 and allow circulation of the refrigerant fluid 5 from the manifold 3 to tubes 2 and vice versa.

Le couvercle 14 comprenant un fond de couvercle 14a et deux flancs de couvercle 14b de part et d'autre du fond de couvercle 14a. Le couvercle 14 est globalement agencé en U, le fond de couvercle 14a formant la base du U et les flancs de couvercle 14b formant les branches du U.The cover 14 comprising a cover base 14a and two cover flanks 14b on either side of the cover base 14a. The cover 14 is generally arranged in a U, the cover bottom 14a forming the base of the U and the cover flanks 14b forming the branches of the U.

La plaque collectrice 15 comprenant un fond de plaque 15a et deux flancs de plaque 15b de part et d'autre du fond de plaquera. La plaque collectrice 15 est également globalement agencée en U, le fond de plaque 15a formant la base du U et les flancs de plaque 15b formant les branches du U.The collector plate 15 comprising a plate bottom 15a and two plate flanks 15b on either side of the plate bottom. The collector plate 15 is also generally arranged in a U, the plate bottom 15a forming the base of the U and the plate flanks 15b forming the branches of the U.

Selon une forme de réalisation du collecteur 3, et tel qu'illustré sur la figure 2, les flancs de couvercle 14b sont insérés entre les flancs de plaque 15b en contact étroit pour délimiter conjointement l'espace interne 11. Selon une autre forme de réalisation du collecteur 3, les flancs de plaque 15b sont insérés entre les flancs de couvercle 14b en contact étroit pour délimiter conjointement l'espace interne 11.According to one embodiment of the collector 3, and as illustrated on figure 2 , the cover flanks 14b are inserted between the plate flanks 15b in close contact to jointly delimit the internal space 11. According to another embodiment of the manifold 3, the plate flanks 15b are inserted between the cover flanks 14b in close contact to jointly delimit the internal space 11.

Sur les figures 3 à 6, la face interne 12 du collecteur 3 comprend au moins un logement 16 de réception de la cloison 10. Le logement 16 est par exemple agencé en une fente ménagée à l'intérieur d'un plan parallèle au plan latéral Oyz. Le logement 16 est destiné à recevoir une tranche 17 de la cloison 10. La tranche 17 de la cloison 10 est le bord de la cloison 10 qui est de plus petite dimension.On the figures 3 to 6 , the internal face 12 of the manifold 3 comprises at least one housing 16 for receiving the partition 10. The housing 16 is for example arranged in a slot formed inside a plane parallel to the lateral plane Oyz. The housing 16 is intended to receive a slice 17 of the partition 10. The slice 17 of the partition 10 is the edge of the partition 10 which is of smaller dimension.

La face interne 12 du collecteur 3, indifféremment constitutive du couvercle 14 ou de la plaque collectrice 15, comporte au moins une cavité 18 et une saillie 19. La saillie 19 est interposée entre la cavité 18 et le logement 16 de réception de la cloison 10. On comprend que la saillie 19 borde le logement 16 pour venir immobiliser la cloison 10 à l'intérieur du logement prévu pour recevoir la cloison 10.The internal face 12 of the collector 3, indifferently constituting the cover 14 or the collector plate 15, comprises at least one cavity 18 and a projection 19. The projection 19 is interposed between the cavity 18 and the housing 16 for receiving the partition 10. It is understood that the projection 19 borders the housing 16 in order to immobilize the partition 10 inside the housing provided to receive the partition 10.

Avantageusement, la saillie 19 est issue de matière de la face interne 12 du collecteur 3. On observe donc une continuité de matière entre la face interne 12 du collecteur 3 et la saillie 19 qui est notamment obtenue à partir d'une déformation de la surface interne 12 du collecteur 3 lors de la formation de la cavité 18, cette formation de la cavité 18 engendrant la formation de la saillie 19. Autrement dit, la saillie 19 est obtenue simultanément lors de la formation de la cavité à partir de la déformation de la surface interne 12 du collecteur 3, qu'il s'agisse de la surface interne 12 participante du couvercle 14 tel que représenté sur les figures 3 et 5 ou bien de la surface interne 12 participante de la plaque collectrice 15, tel que représenté sur les figures 4 et 6.Advantageously, the projection 19 comes from the material of the internal face 12 of the collector 3. There is therefore a continuity of material between the internal face 12 of the collector 3 and the projection 19 which is obtained in particular from a deformation of the surface. 12 of the collector 3 during the formation of the cavity 18, this formation of the cavity 18 causing the formation of the projection 19. In other words, the projection 19 is obtained simultaneously during the formation of the cavity from the deformation of the internal surface 12 of the collector 3, whether it is the internal surface 12 participating in the cover 14 as shown in the figures 3 and 5 or of the participating internal surface 12 of the collector plate 15, as shown in the figures 4 and 6 .

La cavité 18 et la saillie 19 sont respectivement des déformations ponctuelles de la face interne 12 du collecteur 3. On comprend en cela que la cavité 18 et la saillie 19 sont étendues sur de faibles surfaces de la face interne 12, et sont par exemple obtenues à partir d'un poinçonnage de la surface interne 12 notamment réalisé à l'aide d'un poinçon à l'extrémité effilée.The cavity 18 and the projection 19 are respectively point deformations of the internal face 12 of the collector 3. It is understood in this that the cavity 18 and the projection 19 are extended over small surfaces of the internal face 12, and are for example obtained from a punching of the internal surface 12 in particular carried out using a punch at the tapered end.

Selon une variante de réalisation, la cavité 18 et la saillie 19 sont des déformations latérales de la face interne 12 du collecteur 3, et sont par exemple obtenues avec un poinçon dont une extrémité s'étend à l'intérieur d'un plan latéral du collecteur 3.According to an alternative embodiment, the cavity 18 and the projection 19 are lateral deformations of the internal face 12 of the manifold 3, and are for example obtained with a punch, one end of which extends inside a lateral plane of the collector 3.

La cavité 18 est ménagée selon un axe de déformation A2 qui est orthogonal à la direction d'extension longitudinale A1 du collecteur 3.The cavity 18 is formed along a deformation axis A2 which is orthogonal to the direction of longitudinal extension A1 of the collector 3.

Selon les formes de réalisation illustrées sur les figures 3 et 4, une profondeur P de la cavité 18 prise entre la face interne 12 du collecteur 3 et un fond de cavité 20 est inférieure à une épaisseur E du collecteur 3 prise entre la face interne 12 et la face externe 13 du collecteur 3. Dans ce cas-là, la cavité 18 ne débouche pas à travers la face externe 13 du collecteur 3.According to the embodiments illustrated on the figures 3 and 4 , a depth P of the cavity 18 taken between the internal face 12 of the collector 3 and a bottom of the cavity 20 is less than a thickness E of the manifold 3 taken between the internal face 12 and the external face 13 of the manifold 3. In this case, the cavity 18 does not open out through the external face 13 of the manifold 3.

Selon les formes de réalisation illustrées sur les figures 5 et 6, une profondeur P de la cavité 18 prise entre la face interne 12 du collecteur 3 et un fond de cavité 20 est égale à une épaisseur E du collecteur 3 prise entre la face interne 12 et la face externe 13 du collecteur 3. Dans ce cas-là, la cavité 18 débouche à travers la face interne 12 et la face externe 13 du collecteur 3. Autrement dit et avant brasage, la cavité 18 peut être une découpe du couvercle 14 ou de la plaque collectrice 15.According to the embodiments illustrated on the figures 5 and 6 , a depth P of the cavity 18 taken between the internal face 12 of the manifold 3 and a cavity bottom 20 is equal to a thickness E of the manifold 3 taken between the internal face 12 and the external face 13 of the manifold 3. In this case there, the cavity 18 opens out through the internal face 12 and the external face 13 of the manifold 3. In other words and before brazing, the cavity 18 can be a cutout of the cover 14 or of the collector plate 15.

Sur les figures 3 et 5, le couvercle 14 comprenant au moins un flanc de couvercle 14b terminé par une tranche de couvercle 14c, la cavité 18 est ménagée au moins à cheval sur la tranche de couvercle 14c.On the figures 3 and 5 , the cover 14 comprising at least one cover flank 14b terminated by a cover slice 14c, the cavity 18 is provided at least straddling the cover slice 14c.

Sur les figures 4 et 6, la plaque collectrice 15 comprenant au moins un flanc de plaque 15b terminé par une tranche de plaque 15c, la cavité 18 est ménagée au moins à cheval sur la tranche de plaque 15c.On the figures 4 and 6 , the collector plate 15 comprising at least one side of the plate 15b terminated by a wafer of plate 15c, the cavity 18 is provided at least astride the wafer of plate 15c.

Une distance D prise entre un bord proximal 21 du logement 16 de réception de la cloison 10 et l'axe de déformation A2 est égale à l'épaisseur E du collecteur 3 à +/-10 % près. Autrement dit, la cavité 18 est réalisée à proximité du logement 16 de réception de la cloison 10, de telle sorte que la saillie 19 issue de la formation de la cavité de 18 borde, voire empiète sur, le logement 16, de manière à immobiliser la cloison 10 à l'intérieur du logement 16 dans une position telle que la cloison 10 est disposée perpendiculairement à l'axe d'extension longitudinale A1 du collecteur 3.A distance D taken between a proximal edge 21 of the housing 16 for receiving the partition 10 and the deformation axis A2 is equal to the thickness E of the manifold 3 to within +/- 10%. In other words, the cavity 18 is made near the housing 16 for receiving the partition 10, so that the projection 19 resulting from the formation of the cavity 18 borders, or even encroaches on, the housing 16, so as to immobilize the partition 10 inside the housing 16 in a position such that the partition 10 is arranged perpendicular to the longitudinal axis of extension A1 of the manifold 3.

Sur la figure 3, les cavités 18 et les saillies 19 sont au nombre de quatre et sont symétriquement réparties aux angles d'un quadrilatère logeant la cloison 10. Selon cette configuration, les cavités 18 et les saillies 19 sont réalisés sur la face interne 12 constitutive du couvercle 14.On the figure 3 , the cavities 18 and the projections 19 are four in number and are symmetrically distributed at the corners of a quadrilateral housing the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the cover 14 .

Sur la figure 4, les cavités 18 et les saillies 19 sont au nombre de deux et sont symétriquement réparties par rapport à un centre de symétrie 22 de la cloison 10. Selon cette configuration, les cavités 18 et les saillies 19 sont réalisés sur la face interne 12 constitutive du couvercle 14. Un premier couple de cavité et saillie est ainsi ménagé d'un côté de la cloison 10, et un deuxième couple de cavité et saillie est ménagé de l'autre côté de la cloison 10.On the figure 4 , the cavities 18 and the projections 19 are two in number and are symmetrically distributed with respect to a center of symmetry 22 of the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the cover 14. A first pair of cavity and protrusion is thus provided on one side of the partition 10, and a second pair of cavity and protrusion is provided on the other side of the partition 10.

Sur la figure 5, les cavités 18 et les saillies 19 sont au nombre de quatre et sont symétriquement réparties aux angles d'un quadrilatère logeant la cloison 10. Selon cette configuration, les cavités 18 et les saillies 19 sont réalisés sur la face interne 12 constitutive de la plaque collectrice 15.On the figure 5 , the cavities 18 and the projections 19 are four in number and are symmetrically distributed at the angles of a quadrilateral housing the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the plate collector 15.

Sur la figure 6, les cavités 18 et les saillies 19 sont au nombre de deux et sont symétriquement réparties par rapport à un centre de symétrie 22 de la cloison 10. Selon cette configuration, les cavités 18 et les saillies 19 sont réalisés sur la face interne 12 constitutive de la plaque collectrice 15.On the figure 6 , the cavities 18 and the projections 19 are two in number and are symmetrically distributed with respect to a center of symmetry 22 of the partition 10. According to this configuration, the cavities 18 and the projections 19 are made on the internal face 12 constituting the the collector plate 15.

Les cavités 18 des modes de réalisation des figures 5 et 6 sont obstruées par la présence de la plaque collectrice 15, lorsque celles-ci sont ménagées dans le couvercle 14. Il en va de même pour le cas où les cavités 18 sont ménagées dans la plaque collectrice 15 et obturées par le couvercle 14. Dans tous les cas, la cavité est configurée pour se remplir et être obturée par une couche de matériau d'apport présente sur le couvercle et ou sur la plaque collectrice, une fois que l'échangeur de chaleur passe au four.The cavities 18 of the embodiments of the figures 5 and 6 are obstructed by the presence of the collector plate 15, when these are formed in the cover 14. The same applies to the case where the cavities 18 are formed in the collector plate 15 and closed by the cover 14. In all In these cases, the cavity is configured to fill and be sealed by a layer of filler material present on the cover and / or on the collector plate, once the heat exchanger passes into the furnace.

Un procédé d'assemblage d'un tel collecteur 3 comprend successivement au moins les étapes suivantes :

  • une première étape de réalisation du logement 16 sur la face interne 12 du collecteur 3,
  • une deuxième étape de mise en place de la cloison 10 à l'intérieur du logement 16 prévu pour sa réception,
  • une troisième étape de réalisation de la cavité 18 et de la saillie 19 à l'intérieur de la face interne 12 du collecteur 3, cette étape permettant avantageusement d'immobiliser la cloison 10 en la position souhaitée, par exemple à l'intérieur du plan de cloison P2, en évitant tout pivotement de la cloison à l'intérieur du logement 16, y compris en présence d'un jeu d'assemblage.
A method of assembling such a collector 3 successively comprises at least the following steps:
  • a first step of making the housing 16 on the internal face 12 of the collector 3,
  • a second step of installing the partition 10 inside the housing 16 provided for its reception,
  • a third step of making the cavity 18 and the projection 19 inside the internal face 12 of the manifold 3, this step advantageously making it possible to immobilize the partition 10 in the desired position, for example inside the plane P2 partition, avoiding any pivoting of the partition inside the housing 1 6, including in the presence of an assembly game.

De manière avantageuse, le procédé d'assemblage peut être complété par une quatrième étape de solidarisation du couvercle 14 et de la plaque séparatrice 15, la cloison 10 étant interposée entre le couvercle 14 et la plaque collectrice 15.Advantageously, the assembly process can be completed by a fourth step of securing the cover 14 and the separator plate 15, the partition 10 being interposed between the cover 14 and the collector plate 15.

L'ensemble de ces dispositions est tel que l'échangeur de chaleur 1 ainsi obtenu est exempt de fuites de fluide réfrigérant 5, internes et/ou externes.All of these arrangements are such that the heat exchanger 1 thus obtained is free from leaks of refrigerant fluid 5, internal and / or external.

Claims (11)

  1. Header (3) for a heat exchanger (1), the header (3) comprising at least one header plate (15) and a cover (14) which together delimit an internal space (11), and at least one partition (10) which divides the internal space (11) into two sections (11a, 11b), the header (3) comprising an internal face (12) bounding the internal space (11) and an external face (13) oriented towards the outside of the header (3), the internal face (12) comprising at least one recess (16) for receiving the partition (10), characterized in that the internal face (12) comprises at least one cavity (18) and a projection (19), the projection (19) being interposed between the cavity (18) and the recess (16) for receiving the partition (10), and in that the projection (19) forms a means for holding the partition (10) in position along a partition plane (P2) which is orthogonal to a longitudinal direction of extent (A1) of the header (3).
  2. Header (3) according to Claim 1, characterized in that the projection (19) is integral with the internal face (12) of the header (3).
  3. Header (3) according to either one of the preceding claims, characterized in that a depth (P) of the cavity (18), considered between the internal face (12) of the header (3) and a cavity bottom (20), is less than a thickness (E) of the header (3), considered between the internal face (12) and the external face (13) of the header (3).
  4. Header (3) according to either one of Claims 1 and 2, characterized in that the cavity (18) opens through the external face (13).
  5. Header (3) according to any one of the preceding claims, characterized in that the cover (14) comprises at least one cover base (14a) having on either side two cover flanks (14b), at least one of the cover flanks (14b) ending in a cover edge (14c), and in that the cavity (18) is provided so as to at least straddle the cover edge (14c).
  6. Header (3) according to any one of Claims 1 to 4, characterized in that the header plate (15) comprises at least one plate base (15a) having on either side two plate flanks (15b), at least one of the plate flanks (15b) ending in a plate edge (15c), and characterized in that the cavity (18) is provided so as to at least straddle the plate edge (15c).
  7. Header (3) according to any one of the preceding claims, characterized in that the internal face (12) comprises at least one cavity (18) and projection (19) pair.
  8. Header (3) according to the preceding claim, comprising a plurality of cavity (18) and projection (19) pairs, these pairs being diametrically opposite with respect to a longitudinal direction of extent (A1) of the header (3).
  9. Header (3) according to claim 7 or 8, comprising at least two cavity (18) and projection (19) pairs, these two pairs being provided symmetrically with respect to a centre of symmetry (22) of the partition (10).
  10. Heat exchanger (1) comprising at least one header (3) according to any one of the preceding claims.
  11. Method for assembling a header (3) according to any one of Claims 1 to 9, characterized in that the assembly method comprises, in succession, at least the following steps:
    - a first step of creating the recess (16) on the internal face (12) of the header (3),
    - a second step of putting in place the partition (10) inside the recess (16) provided for receiving the partition,
    - a first step of creating the cavity (18) and the projection (19) inside the internal face (12) of the header (3).
EP18210197.2A 2018-12-04 2018-12-04 Collector making up a heat exchanger Active EP3663695B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18210197.2A EP3663695B1 (en) 2018-12-04 2018-12-04 Collector making up a heat exchanger
PCT/EP2019/083496 WO2020115043A1 (en) 2018-12-04 2019-12-03 Constituent header of a heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18210197.2A EP3663695B1 (en) 2018-12-04 2018-12-04 Collector making up a heat exchanger

Publications (2)

Publication Number Publication Date
EP3663695A1 EP3663695A1 (en) 2020-06-10
EP3663695B1 true EP3663695B1 (en) 2021-08-18

Family

ID=64606750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18210197.2A Active EP3663695B1 (en) 2018-12-04 2018-12-04 Collector making up a heat exchanger

Country Status (2)

Country Link
EP (1) EP3663695B1 (en)
WO (1) WO2020115043A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5586600A (en) * 1994-10-26 1996-12-24 Valeo Engine Cooling, Inc. Heat exchanger
JPH09269199A (en) * 1996-03-29 1997-10-14 Sanden Corp Heat exchanger
EP1767889A2 (en) * 2005-09-21 2007-03-28 Calsonic Kansei Corporation Heat exchanger
FR3013436B1 (en) * 2013-11-18 2018-12-07 Valeo Systemes Thermiques COLLECTOR FOR HEAT EXCHANGER

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EP3663695A1 (en) 2020-06-10
WO2020115043A1 (en) 2020-06-11

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