EP2060866A1 - Improved collector case for heat exchanger and corresponding heat exchanger - Google Patents

Improved collector case for heat exchanger and corresponding heat exchanger Download PDF

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Publication number
EP2060866A1
EP2060866A1 EP08166934A EP08166934A EP2060866A1 EP 2060866 A1 EP2060866 A1 EP 2060866A1 EP 08166934 A EP08166934 A EP 08166934A EP 08166934 A EP08166934 A EP 08166934A EP 2060866 A1 EP2060866 A1 EP 2060866A1
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EP
European Patent Office
Prior art keywords
plate
box according
collector
stamped
tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08166934A
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German (de)
French (fr)
Inventor
Sylvain Moreau
Philippe Doucet
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP2060866A1 publication Critical patent/EP2060866A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates

Definitions

  • the invention relates to the field of heat exchangers and in particular to exchangers intended to be traversed by a fluid under high pressure.
  • the invention relates more particularly to air conditioning evaporators that can be traversed by a refrigerant fluid in the supercritical state, as is the case of natural gases such as carbon dioxide or CO2.
  • a refrigerant fluid in the supercritical state, as is the case of natural gases such as carbon dioxide or CO2.
  • Such exchangers find particular application in motor vehicles.
  • Collection boxes generally obtained by brazing, which are designed to withstand such high pressures, are already known.
  • the manifold is formed from an extruded hollow section in which are arranged slots for receiving the tubes of the heat exchanger bundle.
  • This solution requires machining a massive extruded profile to allow insertion of the tubes. Then, it does not allow to add a solder plating inside to allow a good solderability.
  • manifolds comprising at least two parts, namely a stamped manifold and a lid.
  • JP 2000-337788 discloses a manifold composed of a stamped collector plate and an extruded lid. Flat tubes are introduced through the opening of the collector plate.
  • JP 2003-075024 discloses a three-part header, comprising a header plate, a cover and an intermediate plate used for dispensing the fluid.
  • the collector plate is made by stamping and the tubes are introduced into collars of the collector plate which protrude inside the collector box. Because the ends of the tubes protrude inside the manifold, the interior volume thereof can not be minimized.
  • JP 2002-041332 shows an embodiment similar to the previous one which has the same disadvantage of the fact that the ends of the tubes must protrude inside the manifold.
  • Another solution known by EP 0 553 471 relates to a multi-part manifold in which the tubes do not protrude into the manifold.
  • the brazing between the tubes and the collector plate is made in the thickness of the collector plate.
  • This solution requires an additional plate to stop the ends of the tubes.
  • the surface in contact with the ends of the tubes does not have solder plating.
  • This veneer comes from the rest of the header plate and / or the stop plate. As a result, the weight of this part is not optimized.
  • the invention improves the situation.
  • the invention proposes a header box for a heat exchanger, comprising a header plate and a cover.
  • the header plate is provided with at least one row of receiving openings for heat exchange tubes, which reception openings are expressed in a first transverse direction.
  • the lid comprises an intermediate plate having apertured faces apertures each speaking in a second so-called longitudinal direction and a stamped plate having an inner face.
  • the intermediate plate and the stamped plate are secured at the level of said faces which are provided capable of being brazed to one another, and with at least some openings of the intermediate plate substantially facing stampings of the stamped plate.
  • the stampings of the stamped plate and the openings of the intermediate plate together define a collecting volume so as to put into communication two receiving openings of said collector plate adjacent in said longitudinal direction.
  • This manifold is particularly advantageous because, by the embodiment of the manifold in four parts and more precisely by producing the collector in a lid and an intermediate plate, it allows to achieve all the elements by drilling and / or stamping, which guarantees optimum brazing and therefore easy assembly and optimum resistance.
  • the invention also relates to a heat exchanger comprising a tube bundle and at least one header box as previously described.
  • FIG. 1 shows a heat exchanger 10 having a beam 12 mounted between a lower manifold 14 and an upper manifold 16, the heat exchanger being considered in a vertical position.
  • the beam 12 is composed of two rows of tubes 18 (only one of which is visible on the figure 1 ) and corrugated inserts 20 common to both rows of tubes.
  • the beam 12 is delimited longitudinally by two end plates 21 which come against the end tubes.
  • the manifold 16 is provided with two pipes 22 and 24 respectively for the admission and discharge of a fluid flowing through the tubes of the bundle.
  • the heat exchanger 10 is in the form of an evaporator capable of being traversed by a refrigerant fluid operating in the supercritical state, in particular CO2, the pressure of which can reach values of order of 100 to 150 bars.
  • This fluid exchanges heat with a stream of air that scans the tube bundle to produce a flow of air conditioning, especially in a motor vehicle.
  • FIG 2 represents an exploded view of the heat exchanger of the figure 1 .
  • the header box 14 comprises a header plate 26 provided with openings 28 for receiving the tubes of the bundle.
  • the collecting plate 26 is generally rectangular in shape and comprises, along its two long sides, crimping members 30.
  • the openings 28 are of elongate shape and arranged in two rows corresponding to the two rows of tubes.
  • the direction of elongation of the openings 28 is transverse to the direction in which they are arranged.
  • the openings 28 are aligned in a longitudinal direction of the header plate 26, and they are expressed in a transverse direction of this same header plate 26.
  • a distribution plate 38 having two rows of slots 40 each communicating with a tube 18 and a row of slots 42 of greater width which each communicate with two adjacent tubes belonging to the two rows of the beam. Slots 40 and 42 contribute to defining chambers which allow the distribution of the fluid and its circulation in the tubes of the bundle along a defined path.
  • the distribution plate 38 Above the distribution plate 38 are placed an intermediate plate 43 and a stamped plate 44 which together form a cover 45 intended to be held against the header plate, by trapping the distribution plate 38, under the action of the crimp 30.
  • the cover 45 will be described further with the Figures 3 and 4 .
  • the upper manifold 16 is made in a similar manner, except that it has an extension 32 in which holes 34 and 36 are provided for the respective mounting of the tubes 22 and 24.
  • the header plate 46 consists of a header plate 46, a distribution plate 48 and a cover 51 formed by an intermediate plate 49 and a stamped plate 50.
  • the distribution plate 48 has two rows of slots 52 communicating each with a beam tube at its bottom.
  • the collecting plate 26 is a stamped plate having a flat inner face 54 for receiving the distribution plate 38 and an outer face 56 from which extend flanges 58 respectively surrounding the openings 28 for receiving the tubes.
  • the outer face 56 is directed downwards and the collars 58 are also directed downwards. These collars are therefore arranged in two rows corresponding to the two rows of openings 28.
  • the collars and the openings have a rectangular general section to allow the reception of flat tubes 18 having a homologous external section.
  • the distribution plate 38 has a planar inner face 62 adapted to come into contact with the flat inner face 54 of the collector plate and an outer surface 64 that is generally flat, opposite, adapted to receive the cover 45.
  • the slots 40 and 42 are arranged in the thickness of the distribution plate.
  • the distribution plate 38 forms at the same time the insertion stop for the tubes as seen on the figure 3 .
  • the respective ends of the tubes can not exceed the plane defined by the inner face 54 of the header plate.
  • the cover 45 is made here in the form of the intermediate plate 43 and the stamped plate 44.
  • the intermediate plate 43 is a substantially rectangular plate having two substantially flat opposite faces 67 and 69, and of dimensions homologous to those of the distribution plate 38.
  • the intermediate plate 43 also comprises rows of openings 65 or longitudinal slots. The arrangement of the openings 65 will be specified below.
  • the stamped plate 44 is a stamped part having a peripheral edge 66 ( figure 3 ) for the support of the crimping members 30. Thus when the tabs 60 are folded, they maintain the lid in support of the header plate by trapping the distribution plate.
  • the stamped plate 44 has a series of bosses 68 extending in the direction of the length of the lid.
  • the bosses 68 and the openings 65 are arranged so that, when the stamped plate 44 covers the intermediate plate 43, the bosses 68 respectively define chambers 70 communicating with the chambers of the distribution plate (that is to say the slots 40 and 42 thereof) through the openings 65.
  • the openings 65 are expressed in the longitudinal direction of the header plate 26, and they are arranged aligned in the transverse direction of the same header plate 26.
  • the stamped plate 44 has a substantially flat surface 72 on the opposite face to the bosses 68, which is adapted to bear flat on one of the flat faces 67 and 69 of the intermediate plate 43.
  • bosses are suitably arranged to allow the refrigerant fluid to penetrate inside the manifold 16 via the manifold 22, to then circulate in the tubes of the bundle between the manifold 16 and the manifold 14 and then leave the exchanger by the outlet pipe 24.
  • the manifold 14 is made in a similar manner to the manifold 16, except that it has an extension for mounting fluid inlet and outlet tubing.
  • On the figure 5 there is shown the distribution plate 48 and the intermediate plate 49 of the upper header box 16.
  • This figure shows that the intermediate plate 49 has two groups G1 and G2 of longitudinal slots 65.
  • the slots of the group G1 extend over a shorter distance than those of the group G2.
  • the group of slots G1 is extended to accommodate the extension 32 of the distribution plate 48.
  • the slots of the group G1 comprise an end arc 68 to accommodate the shape of the openings 34 and 36 of the distribution plate 48.
  • the intermediate plates 43 and 49 are arranged head-to-tail in the manifolds 16 and 14, so that the groups of slots G1 and G2 of these plates, as well as the rows of slots arranged in the distribution plates 38 and 48 ensure a 6-pass traffic.
  • the precise manner in which the circulation of the fluid takes place in the beam will not be described in more detail, since it is well known to those skilled in the art.
  • header plate 26, distribution plate 38 and stamped plate 44 are each made from a metallic material, preferably aluminum alloy, with a thickness sufficient to withstand the significant pressures of the fluid refrigerant.
  • a metallic material preferably aluminum alloy
  • the assembly is performed by superimposing the lid on one of the flat faces of the intermediate plate, the other flat face thereof on the outer face of the distribution plate, and the lower face thereof on the flat face. the collector plate, then crimp the crimping members on the cover.
  • braze plating On the inner face of the header plate, the flat faces of the intermediate plate, the flat face of the cover, and the flat faces of the distribution plate.
  • This veneer may be placed either on one of the faces at each interface (i.e., stamped plate / intermediate plate, intermediate plate / distribution plate and distribution plate / collector plate), or both. .
  • the figure 6 represents an intermediate plate 80 used in a second embodiment of the invention.
  • bridges 84 have been made therein.
  • the bridges 84 are stamped to have a minimum thickness ( figure 7 ) so as not to disturb the flow of fluid.
  • the bridges 84 can be distributed according to various patterns in order to ensure the best compromise between loss of load and rigidity of the intermediate plate 80.
  • the manifold of the invention is capable of many variants. It finds a main application to heat exchangers traversed by a high-pressure refrigerant, in particular to air-conditioning evaporators traversed by a supercritical fluid such as CO2, such as those intended for motor vehicles.

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

Abstract

The box e.g. lower collector box (14), has a cover (45) including an intermediate plate (43) comprising end faces that are pierced with openings along a longitudinal direction. The cover has a stamped plate (44) provided with an inner face. The plates are connected at a level of the faces adapted to be soldered with each other and with the openings. Humps of the plate (44) and the openings of the plate (43) define a collector volume to connect reception openings (28) of a collector plate (26) along the longitudinal direction.

Description

L'invention se rapporte au domaine des échangeurs de chaleur et notamment aux échangeurs destinés à être parcourus par un fluide sous haute pression.The invention relates to the field of heat exchangers and in particular to exchangers intended to be traversed by a fluid under high pressure.

A cet égard, l'invention se rapporte plus particulièrement aux évaporateurs de climatisation susceptibles d'être parcourus par un fluide réfrigérant à l'état supercritique, comme c'est le cas de gaz naturels tels que le dioxyde de carbone ou CO2. De tels échangeurs trouvent une application particulière dans les véhicules automobiles.In this respect, the invention relates more particularly to air conditioning evaporators that can be traversed by a refrigerant fluid in the supercritical state, as is the case of natural gases such as carbon dioxide or CO2. Such exchangers find particular application in motor vehicles.

On rappellera que dans un circuit de climatisation parcouru par un fluide réfrigérant à l'état supercritique, ce fluide reste essentiellement à l'état gazeux et sous une pression très élevée qui est habituellement comprise entre 100 et 150 bars. Il en résulte que de tels échangeurs de chaleur, et notamment leurs boîtes collectrices, doivent pouvoir résister à de telles pressions élevées, les pressions d'éclatement préconisées étant généralement trois fois la valeur de la pression nominale de fonctionnement.It will be recalled that in an air conditioning circuit traversed by a refrigerant fluid in the supercritical state, this fluid remains essentially in the gaseous state and under a very high pressure which is usually between 100 and 150 bar. As a result, such heat exchangers, and in particular their manifolds, must be able to withstand such high pressures, the recommended burst pressures being generally three times the value of the nominal operating pressure.

On connaît déjà des boîtes collectrices, généralement obtenues par brasage, qui sont conçues pour résister à de telles pressions élevées.Collection boxes, generally obtained by brazing, which are designed to withstand such high pressures, are already known.

Dans une première solution, connue par WO 03/04 614 , la boîte collectrice est formée à partir d'un profilé creux extrudé dans lequel sont aménagées des fentes pour recevoir les tubes du faisceau de l'échangeur. Cette solution nécessite d'usiner un profilé extrudé massif pour permettre l'insertion des tubes. Ensuite, elle ne permet pas d'ajouter un placage de brasure à l'intérieur pour permettre une bonne aptitude au brasage.In a first solution, known by WO 03/04 614 , the manifold is formed from an extruded hollow section in which are arranged slots for receiving the tubes of the heat exchanger bundle. This solution requires machining a massive extruded profile to allow insertion of the tubes. Then, it does not allow to add a solder plating inside to allow a good solderability.

D'autres solutions connues utilisent des boîtes collectrices comprenant au moins deux parties, à savoir une boîte collectrice emboutie et un couvercle.Other known solutions use manifolds comprising at least two parts, namely a stamped manifold and a lid.

Ainsi, JP 2000-337788 divulgue une boîte collectrice composée d'une plaque collectrice emboutie et d'un couvercle extrudé. Des tubes plats sont introduits au travers d'ouverture de la plaque collectrice.So, JP 2000-337788 discloses a manifold composed of a stamped collector plate and an extruded lid. Flat tubes are introduced through the opening of the collector plate.

JP 2003-075024 divulgue une boîte collectrice en trois parties, comprenant une plaque collectrice, un couvercle et une plaque intermédiaire utilisée pour la distribution du fluide. La plaque collectrice est réalisée par emboutissage et les tubes sont introduits dans des collets de la plaque collectrice qui font saillie à l'intérieur de la boîte collectrice. Du fait que les extrémités des tubes dépassent à l'intérieur de la boîte collectrice, le volume intérieur de celle-ci ne peut être minimisée. JP 2003-075024 discloses a three-part header, comprising a header plate, a cover and an intermediate plate used for dispensing the fluid. The collector plate is made by stamping and the tubes are introduced into collars of the collector plate which protrude inside the collector box. Because the ends of the tubes protrude inside the manifold, the interior volume thereof can not be minimized.

JP 2002-041332 montre une réalisation analogue à la précédente qui présente le même inconvénient du fait que les extrémités des tubes doivent dépasser à l'intérieur de la boîte collectrice. JP 2002-041332 shows an embodiment similar to the previous one which has the same disadvantage of the fact that the ends of the tubes must protrude inside the manifold.

Une autre solution, connue par EP 0 553 471 , concerne une boîte collectrice en plusieurs parties dans laquelle les tubes ne dépassent pas à l'intérieur de la boîte collectrice. Le brasage entre les tubes et la plaque collectrice est réalisé dans l'épaisseur de la plaque collectrice. Cette solution nécessite une plaque supplémentaire pour arrêter les extrémités des tubes. La surface en contact avec les extrémités des tubes ne comporte pas de placage de brasure. Ce placage provient du reste de la plaque collectrice et/ou de la plaque d'arrêt. Par conséquent, le poids de cette pièce n'est pas optimisé.Another solution, known by EP 0 553 471 relates to a multi-part manifold in which the tubes do not protrude into the manifold. The brazing between the tubes and the collector plate is made in the thickness of the collector plate. This solution requires an additional plate to stop the ends of the tubes. The surface in contact with the ends of the tubes does not have solder plating. This veneer comes from the rest of the header plate and / or the stop plate. As a result, the weight of this part is not optimized.

Encore une autre solution, connue par la demande de brevet français FR 2 892 804 concerne une boîte collectrice en trois parties comportant une plaque collectrice, une plaque de distribution et un couvercle, la plaque collectrice et la plaque de distribution comportant des surfaces respectives planes agencées de sorte que la plaque de distribution est reçue dans la plaque collectrice en formant une butée d'introduction pour les tubes, ce qui évite que ceux-ci fassent saillie à l'intérieur de la boîte collectrice. Cependant, le couvercle de cette boîte collectrice est réalisé par extrusion, ce qui rend difficile le brasage de l'ensemble et rend cette boîte collectrice potentiellement fragile de manière générale lors des tests d'explosion.Yet another solution, known from the French patent application FR 2 892 804 a three-part header box having a header plate, a distributor plate and a cover, the header plate and the distributor plate having respective planar surfaces arranged so that the distributor plate is received in the header plate forming a introduction stop for the tubes, which prevents them from protruding inside the collecting box. However, the lid of this manifold is made by extrusion, which makes it difficult to braze the assembly and makes this collector box potentially fragile in general during explosion tests.

Ainsi, toutes ces solutions connues ne permettent pas de minimiser le volume intérieur de la boîte collectrice et donc les contraintes sur les pièces composant cette boîte collectrice.Thus, all these known solutions do not minimize the internal volume of the manifold and therefore the constraints on the components of this collector box.

L'invention vient à améliorer la situation.The invention improves the situation.

A cet effet, l'invention propose une boîte collectrice pour échangeur de chaleur, comprenant une plaque collectrice et un couvercle. La plaque collectrice est munie d'au moins une rangée d'ouvertures de réception pour des tubes d'échange de chaleur, lesquelles ouvertures de réception s'expriment selon une première direction dite transversale.For this purpose, the invention proposes a header box for a heat exchanger, comprising a header plate and a cover. The header plate is provided with at least one row of receiving openings for heat exchange tubes, which reception openings are expressed in a first transverse direction.

Dans cette boîte collectrice, le couvercle comporte une plaque intermédiaire présentant des faces percées d'ouvertures s'exprimant chacune selon une deuxième direction dite longitudinale et une plaque emboutie présentant une face intérieure. La plaque intermédiaire et le plaque emboutie sont assujetties au niveau desdites faces qui sont prévues aptes à être brasées l'une à l'autre, et avec certaines au moins des ouvertures de la plaque intermédiaire sensiblement en regard d'emboutis de la plaque emboutie.In this manifold, the lid comprises an intermediate plate having apertured faces apertures each speaking in a second so-called longitudinal direction and a stamped plate having an inner face. The intermediate plate and the stamped plate are secured at the level of said faces which are provided capable of being brazed to one another, and with at least some openings of the intermediate plate substantially facing stampings of the stamped plate.

Les emboutis de la plaque emboutie et les ouvertures de la plaque intermédiaire définissent ensemble un volume collecteur de manière à mettre en communication deux ouvertures de réception de ladite plaque collectrice adjacentes selon ladite direction longitudinale.The stampings of the stamped plate and the openings of the intermediate plate together define a collecting volume so as to put into communication two receiving openings of said collector plate adjacent in said longitudinal direction.

Cette boîte collectrice est particulièrement avantageuse car, par la réalisation de la boîte collectrice en quatre parties et plus précisément en réalisant le collecteur en un couvercle et une plaque intermédiaire, elle permet de réaliser tous les éléments par perçage et/ou emboutissage, ce qui garantit un brasage optimal et par conséquent un montage facilité et une résistance optimale.This manifold is particularly advantageous because, by the embodiment of the manifold in four parts and more precisely by producing the collector in a lid and an intermediate plate, it allows to achieve all the elements by drilling and / or stamping, which guarantees optimum brazing and therefore easy assembly and optimum resistance.

Dans des modes de réalisation avantageux, la boîte collectrice peut comporter les caractéristiques suivantes :

  • * une plaque de distribution est accolée à la plaque collectrice et délimite des chambres communiquant avec les tubes ;
  • * le couvercle ferme les chambres de la plaque de distribution, la plaque collectrice et la plaque de distribution étant agencées de sorte que la plaque de distribution est reçue dans la plaque collectrice en formant une butée d'introduction pour les tubes ;
  • * le couvercle est apte à venir en contact avec la plaque de distribution reçue dans la plaque collectrice, de sorte que certains au moins des emboutis du la plaque emboutie ferment lesdites chambres et le couvercle, la plaque de distribution et la plaque collectrice peuvent être brasés ensemble ;
  • * la plaque de distribution comporte une face extérieure apte à recevoir une face généralement plane du couvercle ;
  • * les ouvertures de la plaque intermédiaire sont des fentes longitudinales dont certaines au moins comportent un pont les séparant en deux parties ;
  • * la plaque emboutie présente une forme générale rectangulaire, et les emboutis de la plaque emboutie sont des bossages s'étendant dans la direction de la longueur de la plaque emboutie ;
  • * la plaque emboutie comporte une pluralité de bossages dans la direction de la largeur ;
  • * la boîte collectrice comporte un placage de brasure sur la face interne de la plaque collectrice ;
  • * la boîte collectrice comporte un placage de brasure à l'interface entre la plaque intermédiaire et la plaque emboutie ;
  • * la boîte collectrice comporte un placage de brasure à l'interface entre la plaque de distribution (38) et le couvercle ;
  • * la plaque collectrice est munie à une extrémité de deux orifices pour la réception de deux tubulures d'entrée et de sortie de fluide ;
  • * la plaque collectrice présente une face extérieure à partir de laquelle s'étendent des collets pour la réception des tubes ;
  • * les ouvertures et les collets de la plaque collectrice ont des sections internes de forme généralement rectangulaire pour la réception de tubes plats de section externe homologue ;
  • * la plaque collectrice comprend deux rangées d'ouvertures et de collets pour la réception de deux rangées de tubes ;
  • * des organes de sertissage sont issus de la plaque collectrice pour prendre appui sur la plaque emboutie en enserrant la plaque de distribution en vue d'un assemblage par brasage ; et
  • * les organes de sertissage de la plaque collectrice comprennent des pattes repliables espacées.
In advantageous embodiments, the header box may have the following characteristics:
  • a distribution plate is contiguous to the collector plate and delimits chambers communicating with the tubes;
  • * the lid closes the chambers of the distribution plate, the header plate and the distribution plate being arranged so that the distribution plate is received in the header plate forming an insertion stop for the tubes;
  • the lid is able to come into contact with the distribution plate received in the header plate, so that at least some of the stampings of the stamped plate close said chambers and the lid, the distribution plate and the collector plate can be soldered together;
  • * the distribution plate has an outer face adapted to receive a generally flat face of the cover;
  • * The openings of the intermediate plate are longitudinal slots, at least some of which comprise a bridge separating them into two parts;
  • the stamped plate has a generally rectangular shape, and the stampings of the stamped plate are bosses extending in the direction of the length of the stamped plate;
  • the stamped plate has a plurality of bosses in the width direction;
  • * The manifold has a solder plating on the inner face of the collector plate;
  • * The manifold includes a solder plating at the interface between the intermediate plate and the stamped plate;
  • * the manifold includes a solder plating at the interface between the distribution plate (38) and the lid;
  • * the collector plate is provided at one end with two ports for receiving two fluid inlet and outlet manifolds;
  • * the collector plate has an outer face from which extend collars for receiving the tubes;
  • * the openings and collars of the header plate have internal sections of generally rectangular shape for receiving flat tubes homologous external section;
  • * The header plate comprises two rows of openings and collars for the reception of two rows of tubes;
  • crimping members are derived from the header plate to bear on the stamped plate by clamping the distribution plate for brazing assembly; and
  • the crimping members of the collector plate comprise spaced folding tabs.

L'invention concerne également un échangeur de chaleur comprenant un faisceau de tube et au moins une boîte collectrice comme décrit précédemment.The invention also relates to a heat exchanger comprising a tube bundle and at least one header box as previously described.

D'autres caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description qui suit, donnés à titre illustratif et non limitatif, sur la base d'exemples tirés des dessins sur lesquels :

  • la figure 1 est une vue en perspective d'un échangeur de chaleur, dans l'exemple d'un évaporateur pour circuit de climatisation, comportant un faisceau de tubes montés entre deux boîtes collectrices selon l'invention ;
  • la figure 2 est une vue en perspective éclatée de l'échangeur de chaleur de la figure 1 ;
  • la figure 3 est une vue en coupe transversale d'une des boîtes collectrices de l'échangeur de chaleur des figures 1 et 2 ;
  • la figure 4 est une vue en coupe transversale du collecteur de la figure 3 ;
  • la figure 5 est une vue de dessus d'une plaque intermédiaire et d'une plaque de distribution de la figure 3 ;
  • la figure 6 représente une plaque intermédiaire d'une boîte collectrice selon un deuxième mode de réalisation de l'invention ; et
  • la figure 7 représente une vue en coupe transversale partielle selon la ligne VII-VII de la figure 6.
Other characteristics and advantages of the invention will appear better on reading the description which follows, given by way of non-limiting illustration, on the basis of examples taken from the drawings in which:
  • the figure 1 is a perspective view of a heat exchanger, in the example of an evaporator for an air conditioning circuit, comprising a bundle of tubes mounted between two manifolds according to the invention;
  • the figure 2 is an exploded perspective view of the heat exchanger of the figure 1 ;
  • the figure 3 is a cross-sectional view of one of the manifolds of the heat exchanger of the figures 1 and 2 ;
  • the figure 4 is a cross-sectional view of the collector of the figure 3 ;
  • the figure 5 is a top view of an intermediate plate and a distribution plate of the figure 3 ;
  • the figure 6 represents an intermediate plate of a header box according to a second embodiment of the invention; and
  • the figure 7 represents a partial cross-sectional view along the line VII-VII of the figure 6 .

On se réfère d'abord à la figure 1 qui montre un échangeur de chaleur 10 comportant un faisceau 12 monté entre une boîte collectrice inférieure 14 et une boîte collectrice supérieure 16, l'échangeur de chaleur étant considéré en position verticale.We first refer to the figure 1 which shows a heat exchanger 10 having a beam 12 mounted between a lower manifold 14 and an upper manifold 16, the heat exchanger being considered in a vertical position.

Le faisceau 12 est composé de deux rangées de tubes 18 (dont une seule est visible sur la figure 1) et d'intercalaires ondulés 20 communs aux deux rangées de tubes. Le faisceau 12 est délimité longitudinalement par deux plaques d'extrémité 21 qui viennent contre les tubes d'extrémité. La boîte collectrice 16 est munie de deux tubulures 22 et 24 servant respectivement à l'admission et l'évacuation d'un fluide parcourant les tubes du faisceau.The beam 12 is composed of two rows of tubes 18 (only one of which is visible on the figure 1 ) and corrugated inserts 20 common to both rows of tubes. The beam 12 is delimited longitudinally by two end plates 21 which come against the end tubes. The manifold 16 is provided with two pipes 22 and 24 respectively for the admission and discharge of a fluid flowing through the tubes of the bundle.

Dans l'exemple, l'échangeur de chaleur 10 est réalisé sous la forme d'un évaporateur propre à être parcouru par un fluide réfrigérant fonctionnant à l'état supercritique, en particulier du CO2, dont la pression peut atteindre des valeurs de l'ordre de 100 à 150 bars. Ce fluide échange de la chaleur avec un flux d'air qui balaye le faisceau de tubes pour produire un flux d'air climatisé, en particulier dans un véhicule automobile.In the example, the heat exchanger 10 is in the form of an evaporator capable of being traversed by a refrigerant fluid operating in the supercritical state, in particular CO2, the pressure of which can reach values of order of 100 to 150 bars. This fluid exchanges heat with a stream of air that scans the tube bundle to produce a flow of air conditioning, especially in a motor vehicle.

On se réfère maintenant à la figure 2 qui représente une vue éclatée de l'échangeur de chaleur de la figure 1.We now refer to the figure 2 which represents an exploded view of the heat exchanger of the figure 1 .

On voit que la boîte collectrice 14 comporte une plaque collectrice 26 munie d'ouvertures 28 de réception des tubes du faisceau. La plaque collectrice 26 est de forme générale rectangulaire et elle comporte, le long de ses deux grands côtés, des organes de sertissage 30.It can be seen that the header box 14 comprises a header plate 26 provided with openings 28 for receiving the tubes of the bundle. The collecting plate 26 is generally rectangular in shape and comprises, along its two long sides, crimping members 30.

Les ouvertures 28 sont de forme allongée et disposées suivant deux rangées en correspondance des deux rangées de tubes. La direction d'allongement des ouvertures 28 est transversale à la direction dans laquelle elles sont disposées. Ainsi, les ouvertures 28 sont alignées selon une direction longitudinale de la plaque collectrice 26, et elles s'expriment selon une direction transversale de cette même plaque collectrice 26.The openings 28 are of elongate shape and arranged in two rows corresponding to the two rows of tubes. The direction of elongation of the openings 28 is transverse to the direction in which they are arranged. Thus, the openings 28 are aligned in a longitudinal direction of the header plate 26, and they are expressed in a transverse direction of this same header plate 26.

Au-dessus de la plaque collectrice 26, est placée une plaque de distribution 38 comportant deux rangées de fentes 40 communiquant chacune avec un tube 18 et une rangée de fentes 42 de plus grande largeur qui communiquent chacune avec deux tubes adjacents appartenant aux deux rangées du faisceau. Les fentes 40 et 42 contribuent à définir des chambres qui permettent la distribution du fluide et sa circulation dans les tubes du faisceau selon un parcours défini.Above the manifold plate 26, is placed a distribution plate 38 having two rows of slots 40 each communicating with a tube 18 and a row of slots 42 of greater width which each communicate with two adjacent tubes belonging to the two rows of the beam. Slots 40 and 42 contribute to defining chambers which allow the distribution of the fluid and its circulation in the tubes of the bundle along a defined path.

Au-dessus de la plaque de distribution 38 sont placés une plaque intermédiaire 43 et une plaque emboutie 44 qui forment ensemble un couvercle 45 destiné à être maintenu contre la plaque collectrice, en emprisonnant la plaque de distribution 38, sous l'action des organes de sertissage 30. Le couvercle 45 sera décrit plus avant avec les figures 3 et 4.Above the distribution plate 38 are placed an intermediate plate 43 and a stamped plate 44 which together form a cover 45 intended to be held against the header plate, by trapping the distribution plate 38, under the action of the crimp 30. The cover 45 will be described further with the Figures 3 and 4 .

La boîte collectrice supérieure 16 est réalisée d'une manière similaire, sauf qu'elle ne comporte un prolongement 32 dans lequel sont aménagés des orifices 34 et 36 pour le montage respectif des tubulures 22 et 24.The upper manifold 16 is made in a similar manner, except that it has an extension 32 in which holes 34 and 36 are provided for the respective mounting of the tubes 22 and 24.

Elle se compose d'une plaque collectrice 46, d'une plaque de distribution 48 et d'un couvercle 51 formé par une plaque intermédiaire 49 et une plaque emboutie 50. On remarque que la plaque de distribution 48 comporte deux rangées de fentes 52 communiquant chacune avec un tube du faisceau à sa partie inférieure.It consists of a header plate 46, a distribution plate 48 and a cover 51 formed by an intermediate plate 49 and a stamped plate 50. Note that the distribution plate 48 has two rows of slots 52 communicating each with a beam tube at its bottom.

On se réfère maintenant à la figure 3 qui représente une en coupe transversale de la boîte collectrice 16. On retrouve sur la figure 3 la plaque collectrice 26, la plaque de distribution 38 et le couvercle 45. La plaque collectrice 26 est une plaque emboutie présentant une face intérieure plane 54 pour la réception de la plaque de distribution 38 et une face extérieure 56 à partir de laquelle s'étendent des collets 58 entourant respectivement les ouvertures 28 de réception des tubes.We now refer to the figure 3 which represents a cross-section of the manifold box 16. We find on the figure 3 the collecting plate 26, the distribution plate 38 and the cover 45. The collecting plate 26 is a stamped plate having a flat inner face 54 for receiving the distribution plate 38 and an outer face 56 from which extend flanges 58 respectively surrounding the openings 28 for receiving the tubes.

Dans l'exemple montré, la face extérieure 56 est dirigée vers le bas et les collets 58 sont également dirigés vers le bas. Ces collets sont donc disposés suivant deux rangées en correspondance des deux rangées d'ouvertures 28. Dans l'exemple, les collets et les ouvertures ont une section générale rectangulaire pour permettre la réception des tubes plats 18 ayant une section externe homologue.In the example shown, the outer face 56 is directed downwards and the collars 58 are also directed downwards. These collars are therefore arranged in two rows corresponding to the two rows of openings 28. In the example, the collars and the openings have a rectangular general section to allow the reception of flat tubes 18 having a homologous external section.

La plaque de distribution 38 comporte une face intérieure plane 62 apte à venir en contact avec la face intérieure plane 54 de la plaque collectrice et une face extérieure 64 généralement plane, opposée, apte à recevoir le couvercle 45.The distribution plate 38 has a planar inner face 62 adapted to come into contact with the flat inner face 54 of the collector plate and an outer surface 64 that is generally flat, opposite, adapted to receive the cover 45.

Dans l'épaisseur de la plaque de distribution, sont aménagées les fentes 40 et 42 précitées. La plaque de distribution 38 forme en même temps butée d'introduction pour les tubes comme on le voit sur la figure 3. Il en résulte que les extrémités respectives des tubes ne peuvent dépasser le plan défini par la face intérieure 54 de la plaque collectrice.In the thickness of the distribution plate, are arranged the slots 40 and 42 above. The distribution plate 38 forms at the same time the insertion stop for the tubes as seen on the figure 3 . As a result, the respective ends of the tubes can not exceed the plane defined by the inner face 54 of the header plate.

Comme cela apparaît plus clairement sur la figure 4, le couvercle 45 est réalisé ici sous la forme de la plaque intermédiaire 43 et de la plaque emboutie 44.As it appears more clearly on the figure 4 , the cover 45 is made here in the form of the intermediate plate 43 and the stamped plate 44.

La plaque intermédiaire 43 est une plaque sensiblement rectangulaire comportant deux faces opposées sensiblement planes 67 et 69, et de dimensions homologues de celles de la plaque de distribution 38. La plaque intermédiaire 43 comporte également des rangées d'ouvertures 65 ou fentes longitudinales. L'agencement des ouvertures 65 sera précisé plus bas.The intermediate plate 43 is a substantially rectangular plate having two substantially flat opposite faces 67 and 69, and of dimensions homologous to those of the distribution plate 38. The intermediate plate 43 also comprises rows of openings 65 or longitudinal slots. The arrangement of the openings 65 will be specified below.

La plaque emboutie 44 est une pièce emboutie comportant un bord périphérique 66 (figure 3) pour l'appui des organes de sertissage 30. Ainsi lorsque les pattes 60 sont repliées, elles maintiennent en appui le couvercle en direction de la plaque collectrice en emprisonnant la plaque de distribution.The stamped plate 44 is a stamped part having a peripheral edge 66 ( figure 3 ) for the support of the crimping members 30. Thus when the tabs 60 are folded, they maintain the lid in support of the header plate by trapping the distribution plate.

La plaque emboutie 44 comporte une série de bossages 68 s'étendant dans la direction de la longueur du couvercle. Les bossages 68 et les ouvertures 65 sont agencés de sorte que, lorsque la plaque emboutie 44 recouvre la plaque intermédiaire 43, les bossages 68 délimitent respectivement des chambres 70 communiquant avec les chambres de la plaque de distribution (c'est-à-dire les fentes 40 et 42 de cette dernière) à travers les ouvertures 65.The stamped plate 44 has a series of bosses 68 extending in the direction of the length of the lid. The bosses 68 and the openings 65 are arranged so that, when the stamped plate 44 covers the intermediate plate 43, the bosses 68 respectively define chambers 70 communicating with the chambers of the distribution plate (that is to say the slots 40 and 42 thereof) through the openings 65.

Comme cela apparaît clairement sur les figures 5 et 6, les ouvertures 65 s'expriment selon la direction longitudinale de la plaque collectrice 26, et elles sont disposées alignées selon la direction transversale de cette même plaque collectrice 26.As is clear from the Figures 5 and 6 , the openings 65 are expressed in the longitudinal direction of the header plate 26, and they are arranged aligned in the transverse direction of the same header plate 26.

La plaque emboutie 44 comporte une surface 72 sensiblement plane sur la face opposée aux bossages 68, qui est propre à venir en appui plan sur l'une des faces planes 67 et 69 de la plaque intermédiaire 43.The stamped plate 44 has a substantially flat surface 72 on the opposite face to the bosses 68, which is adapted to bear flat on one of the flat faces 67 and 69 of the intermediate plate 43.

Ces bossages sont convenablement disposés pour permettre au fluide réfrigérant de pénétrer à l'intérieur de la boîte collectrice 16 via la tubulure 22, de circuler ensuite dans les tubes du faisceau entre la boîte collectrice 16 et la boîte collectrice 14 puis de quitter l'échangeur par la tubulure de sortie 24.These bosses are suitably arranged to allow the refrigerant fluid to penetrate inside the manifold 16 via the manifold 22, to then circulate in the tubes of the bundle between the manifold 16 and the manifold 14 and then leave the exchanger by the outlet pipe 24.

La boîte collectrice 14 est réalisée d'une façon analogue à la boîte collectrice 16, sauf qu'elle comporte un prolongement pour le montage de tubulure d'entrée et de sortie de fluide. Sur la figure 5, on a représenté la plaque de distribution 48 et la plaque intermédiaire 49 de la boîte collectrice supérieure 16.The manifold 14 is made in a similar manner to the manifold 16, except that it has an extension for mounting fluid inlet and outlet tubing. On the figure 5 , there is shown the distribution plate 48 and the intermediate plate 49 of the upper header box 16.

On voit sur cette figure que la plaque intermédiaire 49 comporte deux groupes G1 et G2 de fentes longitudinales 65. Les fentes du groupe G1 s'étendent sur une distance plus courte que celles du groupe G2.This figure shows that the intermediate plate 49 has two groups G1 and G2 of longitudinal slots 65. The slots of the group G1 extend over a shorter distance than those of the group G2.

Par rapport à la plaque intermédiaire 43 de l'autre boite collectrice, le groupe de fentes G1 est prolongé pour accommoder le prolongement 32 de la plaque de distribution 48. En outre, les fentes du groupe G1 comportent un arc 68 d'extrémité pour accommoder la forme des ouvertures 34 et 36 de la plaque de distribution 48.With respect to the intermediate plate 43 of the other collecting box, the group of slots G1 is extended to accommodate the extension 32 of the distribution plate 48. In addition, the slots of the group G1 comprise an end arc 68 to accommodate the shape of the openings 34 and 36 of the distribution plate 48.

Comme cela apparaît sur la figure 2, les plaques intermédiaires 43 et 49 sont disposées tête-bêche dans les boîtes collectrices 16 et 14, de sorte que les groupes de fentes G1 et G2 de ces plaques, ainsi que les rangées de fentes agencées dans les plaques de distribution 38 et 48 assurent une circulation à 6 passes. La manière précise dont la circulation du fluide s'effectue dans le faisceau ne sera pas décrite plus en détail, puisque bien connue de l'homme du métier.As it appears on the figure 2 , the intermediate plates 43 and 49 are arranged head-to-tail in the manifolds 16 and 14, so that the groups of slots G1 and G2 of these plates, as well as the rows of slots arranged in the distribution plates 38 and 48 ensure a 6-pass traffic. The precise manner in which the circulation of the fluid takes place in the beam will not be described in more detail, since it is well known to those skilled in the art.

La façon de réaliser les fentes dans les plaques intermédiaires permet donc, en combinaison avec celle de réaliser les fentes dans les plaques de distribution, de contrôler le circuit de fluide dans l'échangeur.The manner of making the slots in the intermediate plates thus makes it possible, in combination with that of making the slots in the distribution plates, to control the fluid circuit in the exchanger.

Les composants de la boîte collectrice (plaque collectrice 26, plaque de distribution 38 et plaque emboutie 44) sont réalisés chacun à partir d'un matériau métallique, de préférence en alliage d'aluminium, avec une épaisseur suffisante pour résister aux pressions importantes du fluide réfrigérant. Le fait de réaliser plusieurs bossages permet de former des chambres 70 de petit volume limitant l'effet de la pression du fluide sur les composants de la plaque collectrice.The components of the header (header plate 26, distribution plate 38 and stamped plate 44) are each made from a metallic material, preferably aluminum alloy, with a thickness sufficient to withstand the significant pressures of the fluid refrigerant. The fact of making several bosses makes it possible to form chambers 70 of small volume limiting the effect of the pressure of the fluid on the components of the header plate.

L'assemblage est réalisé en superposant le couvercle sur une des faces planes de la plaque intermédiaire, l'autre face plane de celle-ci sur la face extérieure de la plaque de distribution, et la face inférieure de celle-ci sur la face plane de la plaque collectrice, puis à sertir les organes de sertissage sur le couvercle.The assembly is performed by superimposing the lid on one of the flat faces of the intermediate plate, the other flat face thereof on the outer face of the distribution plate, and the lower face thereof on the flat face. the collector plate, then crimp the crimping members on the cover.

Ces composants étant destinés à être assemblés par brasage une fois un assemblage provisoire obtenu par sertissage. Il est donc nécessaire de prévoir un placage de brasure. Pour cela, on peut prévoir un placage de brasure sur la face intérieure de la plaque collectrice, les faces planes de la plaque intermédiaire, la face plane du couvercle, et les faces planes de la plaque de distribution. Ce placage peut être placé au choix soit sur l'une des faces à chaque interface (c'est-à-dire plaque emboutie/plaque intermédiaire, plaque intermédiaire/plaque de distribution et plaque de distribution/plaque collectrice), ou sur les deux.These components being intended to be assembled by soldering once a provisional assembly obtained by crimping. It is therefore necessary to provide a braze plating. For this, one can provide a braze plating on the inner face of the header plate, the flat faces of the intermediate plate, the flat face of the cover, and the flat faces of the distribution plate. This veneer may be placed either on one of the faces at each interface (i.e., stamped plate / intermediate plate, intermediate plate / distribution plate and distribution plate / collector plate), or both. .

La figure 6 représente une plaque intermédiaire 80 utilisée dans un deuxième mode de réalisation de l'invention. Dans ce mode de réalisation, pour prévenir un fléchissement des bords entourant les fentes longitudinales 82, des ponts 84 ont été réalisés dans celles-ci. Les ponts 84 sont emboutis pour présenter une épaisseur minimale (figure 7) afin de ne pas perturber la circulation de fluide. Les ponts 84 peuvent être répartis selon divers motifs afin d'assurer le meilleur compromis perte de charge / rigidité de la plaque intermédiaire 80.The figure 6 represents an intermediate plate 80 used in a second embodiment of the invention. In this embodiment, to prevent sagging of the edges surrounding the longitudinal slots 82, bridges 84 have been made therein. The bridges 84 are stamped to have a minimum thickness ( figure 7 ) so as not to disturb the flow of fluid. The bridges 84 can be distributed according to various patterns in order to ensure the best compromise between loss of load and rigidity of the intermediate plate 80.

La boîte collectrice de l'invention est susceptible de nombreuses variantes de réalisation. Elle trouve une application principale aux échangeurs de chaleur parcourus par un fluide réfrigérant sous haute pression, en particulier aux évaporateurs de climatisation parcourus par un fluide à l'état supercritique comme le CO2, tels que ceux destinés aux véhicules automobiles.The manifold of the invention is capable of many variants. It finds a main application to heat exchangers traversed by a high-pressure refrigerant, in particular to air-conditioning evaporators traversed by a supercritical fluid such as CO2, such as those intended for motor vehicles.

Claims (18)

Boîte collectrice pour échangeur de chaleur, comprenant une plaque collectrice (26) et un couvercle (45), ladite plaque collectrice (26) étant munie d'au moins une rangée d'ouvertures (28) de réception pour des tubes (18) d'échange de chaleur, lesdites ouvertures (28) de réception s'exprimant selon une première direction dite transversale, caractérisée en ce que le couvercle (45) comporte une plaque intermédiaire (43) présentant des faces (67, 69) percées d'ouvertures (65) s'exprimant chacune selon une deuxième direction dite longitudinale et une plaque emboutie (44) présentant une face intérieure (72), la plaque intermédiaire (43) et la plaque emboutie (44) étant assujetties au niveau desdites faces (67, 69 ; 72) prévues aptes à être brasées l'une à l'autre et avec certaines au moins des ouvertures (65) de la plaque intermédiaire (43) sensiblement en regard d'emboutis (68) de la plaque emboutie (44), lesdits emboutis (68) de la plaque emboutie (44) et lesdites ouvertures (65) de la plaque intermédiaire (43) définissant ensemble un volume collecteur de manière à mettre en communication deux ouvertures (28) de réception de ladite plaque collectrice (26) adjacentes selon ladite direction longitudinale.A heat exchanger manifold comprising a header plate (26) and a cover (45), said header plate (26) being provided with at least one row of receiving openings (28) for tubes (18) of heat exchange, said receiving openings (28) speaking in a first so-called transverse direction, characterized in that the cover (45) comprises an intermediate plate (43) having faces (67, 69) pierced with openings (65) each speaking in a second said longitudinal direction and a stamped plate (44) having an inner face (72), the intermediate plate (43) and the stamped plate (44) being secured at said faces (67, 69; 72) provided to be brazed to one another and with at least some openings (65) of the intermediate plate (43) substantially facing stampings (68) of the stamped plate (44), said stampings (68) of the stamped plate (44) and said apertures (65) of the intermediate plate (43) together defining a manifold volume for communicating two adjacent receiving plate (28) receiving apertures (26) in said longitudinal direction. Boîte collectrice selon la revendication 1, caractérisée en ce qu'une plaque de distribution (38) est accolée à la plaque collectrice (26) et délimite des chambres (70) communiquant avec les tubes (18).Slip box according to claim 1, characterized in that a distribution plate (38) is contiguous to the header plate (26) and defines chambers (70) communicating with the tubes (18). Boîte collectrice selon la revendication 2, caractérisée en ce que le couvercle (45) ferme les chambres (70) de la plaque de distribution (38), la plaque collectrice (26) et la plaque de distribution (38) étant agencées de sorte que la plaque de distribution (38) est reçue dans la plaque collectrice (26) en formant une butée d'introduction pour les tubes (18).Slip box according to claim 2, characterized in that the cover (45) closes the chambers (70) of the distribution plate (38), the collecting plate (26) and the distribution plate (38) being arranged so that the distribution plate (38) is received in the header plate (26) forming an insertion stop for the tubes (18). Boîte collectrice selon la revendication 2 ou 3, caractérisée en ce que le couvercle (45) est apte à venir en contact avec la plaque de distribution (38) reçue dans la plaque collectrice (26), de sorte que certains au moins des emboutis (68) du la plaque emboutie (44) ferment lesdites chambres (70) et que le couvercle (45), la plaque de distribution (38) et la plaque collectrice (26) peuvent être brasés ensemble.Collector box according to claim 2 or 3, characterized in that the cover (45) is adapted to come into contact with the distribution plate (38) received in the collector plate (26), so that at least some of the stampings ( 68) of the stamped plate (44) close said chambers (70) and that the cover (45), the distribution plate (38) and the collector plate (26) can be soldered together. Boîte collectrice selon l'une des revendications 2 à 4, caractérisée en ce que la plaque de distribution (38) comporte une face extérieure (64) apte à recevoir une face généralement plane (67, 69) du couvercle (45).Slip box according to one of claims 2 to 4, characterized in that the distribution plate (38) has an outer face (64) adapted to receive a generally flat face (67, 69) of the cover (45). Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que les ouvertures (82) de la plaque intermédiaire (80) sont des fentes longitudinales dont certaines au moins (82) comportent un pont (84) les séparant en deux parties.Collector box according to one of the preceding claims, characterized in that the openings (82) of the intermediate plate (80) are longitudinal slots, at least some of which (82) comprise a bridge (84) separating them in two parts. Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que la plaque emboutie (44) présente une forme générale rectangulaire, et en ce que les emboutis de la plaque emboutie (44) sont des bossages (68) s'étendant dans la direction de la longueur de la plaque emboutie (44).Slip box according to one of the preceding claims, characterized in that the stamped plate (44) has a generally rectangular shape, and in that the stampings of the stamped plate (44) are bosses (68) extending into the direction of the length of the stamped plate (44). Boîte collectrice selon la revendication précédente, caractérisée en ce que la plaque emboutie (44) comporte une pluralité de bossages (68) dans la direction de la largeur.Collector box according to the preceding claim, characterized in that the stamped plate (44) has a plurality of bosses (68) in the direction of the width. Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte un placage de brasure sur la face interne (54) de la plaque collectrice (26).Collector box according to one of the preceding claims, characterized in that it comprises a solder plating on the inner face (54) of the collector plate (26). Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce qu'elle comporte un placage de brasure à l'interface entre la plaque intermédiaire (43) et la plaque emboutie (44).Collector box according to one of the preceding claims, characterized in that it comprises solder plating at the interface between the intermediate plate (43) and the stamped plate (44). Boîte collectrice selon l'une des revendications 3 à 10, caractérisée en ce qu'elle comporte un placage de brasure à l'interface entre la plaque de distribution (38) et le couvercle (45).Collector box according to one of Claims 3 to 10, characterized in that it comprises solder plating at the interface between the distribution plate (38) and the cover (45). Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que la plaque collectrice (46) est munie à une extrémité de deux orifices (34, 36) pour la réception de deux tubulures (22, 24) d'entrée et de sortie de fluide.Collector box according to one of the preceding claims, characterized in that the collector plate (46) is provided at one end with two orifices (34, 36) for receiving two inlet and outlet pipes (22, 24). of fluid. Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que la plaque collectrice (26) présente une face extérieure (56) à partir de laquelle s'étendent des collets (58) pour la réception des tubes (18).Collector box according to one of the preceding claims, characterized in that the collector plate (26) has an outer face (56) from which flanges (58) extend for receiving the tubes (18). Boîte collectrice selon la revendication précédente, caractérisée en ce que les ouvertures (28) et les collets (58) de la plaque collectrice (26) ont des sections internes de forme généralement rectangulaire pour la réception de tubes plats (18) de section externe homologue.Collecting box according to the preceding claim, characterized in that the openings (28) and the collars (58) of the header plate (26) have internal sections of generally rectangular shape for receiving flat tubes (18) of homologous outer section . Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que la plaque collectrice (26) comprend deux rangées d'ouvertures (28) et de collets (58) pour la réception de deux rangées de tubes (18).Collector box according to one of the preceding claims, characterized in that the header plate (26) comprises two rows of openings (28) and flanges (58) for receiving two rows of tubes (18). Boîte collectrice selon l'une des revendications précédentes, caractérisée en ce que des organes de sertissage (30) sont issus de la plaque collectrice (26) pour prendre appui sur la plaque emboutie (44) en enserrant la plaque de distribution (38) en vue d'un assemblage par brasage.Collector box according to one of the preceding claims, characterized in that crimping members (30) are derived from the collector plate (26) to bear on the stamped plate (44) by clamping the distribution plate (38) in solder assembly. Boîte collectrice selon la revendication précédente, caractérisée en ce que les organes de sertissage (30) de la plaque collectrice (26) comprennent des pattes repliables espacées (60).Collecting box according to the preceding claim, characterized in that the crimping members (30) of the header plate (26) comprise spaced folding tabs (60). Echangeur de chaleur comprenant un faisceau de tubes (18) et au moins une boîte collectrice (14, 16) selon l'une des revendications 1 à 17.Heat exchanger comprising a bundle of tubes (18) and at least one manifold (14, 16) according to one of claims 1 to 17.
EP08166934A 2007-11-16 2008-10-17 Improved collector case for heat exchanger and corresponding heat exchanger Withdrawn EP2060866A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0708071A FR2923902A1 (en) 2007-11-16 2007-11-16 COLLECTOR BOX FOR IMPROVED HEAT EXCHANGER AND CORRESPONDING HEAT EXCHANGER

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EP2060866A1 true EP2060866A1 (en) 2009-05-20

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EP08166934A Withdrawn EP2060866A1 (en) 2007-11-16 2008-10-17 Improved collector case for heat exchanger and corresponding heat exchanger

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EP (1) EP2060866A1 (en)
JP (1) JP2009121808A (en)
FR (1) FR2923902A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517879A1 (en) * 2018-01-25 2019-07-31 Valeo Vyminiky Tepla, s.r.o. Feeding plate for heat exchanger
CN114353387A (en) * 2021-11-22 2022-04-15 浙江银轮新能源热管理系统有限公司 High pressure resistant air conditioner heat exchanger
US11624565B2 (en) * 2018-05-25 2023-04-11 Hangzhou Sanhua Research Institute Co., Ltd. Header box and heat exchanger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3025304B1 (en) * 2014-08-26 2016-12-23 Valeo Systemes Thermiques COMPACT COLLECTOR BOX FOR A HEAT EXCHANGER

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553471A2 (en) 1992-01-25 1993-08-04 Robert Bosch Gmbh Belt drive for electric machines
US5934367A (en) * 1996-12-19 1999-08-10 Sanden Corporation Heat exchanger
JP2000337788A (en) 1999-05-25 2000-12-08 Denso Corp Heat exchanger
JP2002041332A (en) 2000-07-27 2002-02-08 Hitachi Software Eng Co Ltd Program quality evaluating method and recording medium
WO2003004614A2 (en) 2001-07-06 2003-01-16 The Regents Of The University Of California Identification and use of conserved noncoding sequences
JP2003075024A (en) 2001-06-18 2003-03-12 Showa Denko Kk Evaporator, its manufacturing method, header member for the vaporizer and refrigerating system
US20050235691A1 (en) * 2004-04-08 2005-10-27 Denso Corporation Refrigerant evaporator
JP2005345038A (en) * 2004-06-04 2005-12-15 Calsonic Kansei Corp Heat exchanger
US20060162917A1 (en) * 2005-01-27 2006-07-27 Taeyoung Park Heat exchanger
FR2892804A1 (en) 2005-10-28 2007-05-04 Valeo Systemes Thermiques COLLECTOR BOX FOR HEAT EXCHANGER, PARTICULARLY FOR AIR CONDITIONING EVAPORATOR, EXCHANGER COMPRISING SUCH BOX AND METHOD FOR MANUFACTURING THE SAME
US20070131398A1 (en) * 2005-12-14 2007-06-14 Showa Denko K.K. Heat exchanger

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553471A2 (en) 1992-01-25 1993-08-04 Robert Bosch Gmbh Belt drive for electric machines
US5934367A (en) * 1996-12-19 1999-08-10 Sanden Corporation Heat exchanger
JP2000337788A (en) 1999-05-25 2000-12-08 Denso Corp Heat exchanger
JP2002041332A (en) 2000-07-27 2002-02-08 Hitachi Software Eng Co Ltd Program quality evaluating method and recording medium
JP2003075024A (en) 2001-06-18 2003-03-12 Showa Denko Kk Evaporator, its manufacturing method, header member for the vaporizer and refrigerating system
WO2003004614A2 (en) 2001-07-06 2003-01-16 The Regents Of The University Of California Identification and use of conserved noncoding sequences
US20050235691A1 (en) * 2004-04-08 2005-10-27 Denso Corporation Refrigerant evaporator
JP2005345038A (en) * 2004-06-04 2005-12-15 Calsonic Kansei Corp Heat exchanger
US20060162917A1 (en) * 2005-01-27 2006-07-27 Taeyoung Park Heat exchanger
FR2892804A1 (en) 2005-10-28 2007-05-04 Valeo Systemes Thermiques COLLECTOR BOX FOR HEAT EXCHANGER, PARTICULARLY FOR AIR CONDITIONING EVAPORATOR, EXCHANGER COMPRISING SUCH BOX AND METHOD FOR MANUFACTURING THE SAME
US20070131398A1 (en) * 2005-12-14 2007-06-14 Showa Denko K.K. Heat exchanger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3517879A1 (en) * 2018-01-25 2019-07-31 Valeo Vyminiky Tepla, s.r.o. Feeding plate for heat exchanger
WO2019145466A1 (en) * 2018-01-25 2019-08-01 Valeo Výmìníky Tepla, S.R.O. Feeding plate for heat exchanger
US11624565B2 (en) * 2018-05-25 2023-04-11 Hangzhou Sanhua Research Institute Co., Ltd. Header box and heat exchanger
CN114353387A (en) * 2021-11-22 2022-04-15 浙江银轮新能源热管理系统有限公司 High pressure resistant air conditioner heat exchanger

Also Published As

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FR2923902A1 (en) 2009-05-22
JP2009121808A (en) 2009-06-04

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