EP0593360A1 - Tube wall in two parts and process for manufacturing a condenser for the airconditioning of a motor vehicle - Google Patents

Tube wall in two parts and process for manufacturing a condenser for the airconditioning of a motor vehicle Download PDF

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Publication number
EP0593360A1
EP0593360A1 EP93402525A EP93402525A EP0593360A1 EP 0593360 A1 EP0593360 A1 EP 0593360A1 EP 93402525 A EP93402525 A EP 93402525A EP 93402525 A EP93402525 A EP 93402525A EP 0593360 A1 EP0593360 A1 EP 0593360A1
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EP
European Patent Office
Prior art keywords
parts
tubular wall
tubes
openings
legs
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Withdrawn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
EP93402525A
Other languages
German (de)
French (fr)
Inventor
Pascal Velluet
Jean-Pierre Tournebize
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 Thermique Moteur SA
Original Assignee
Valeo Thermique Moteur SA
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 Thermique Moteur SA filed Critical Valeo Thermique Moteur SA
Publication of EP0593360A1 publication Critical patent/EP0593360A1/en
Withdrawn legal-status Critical Current

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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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • 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
    • F28F9/0243—Header boxes having a circular cross-section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49389—Header or manifold making

Definitions

  • the invention relates to heat exchangers, in particular air conditioning condensers for motor vehicles, comprising a fluid box with a tubular wall having openings elongated transversely to its axis and mutually aligned along it to receive a row of tubes of fluid circulation.
  • the assembly of the circulation tubes and of the tubular wall is usually carried out by moving the latter, relative to the set of aligned tubes, in the longitudinal direction thereof so as to penetrate the ends of the tubes into the openings of the tubular wall. If, in an automatic assembly device, the tubular wall is very slightly offset laterally with respect to the row of tubes, or if these are not perfectly aligned, the ends of the tubes or of some of them will not come not strictly in coincidence with the openings, which will cause deterioration of the parts concerned or a blocking of the assembly operation.
  • the object of the invention is to remedy this drawback.
  • the invention relates to a tubular wall for a heat exchanger fluid box, having openings elongated transversely to its axis and mutually aligned along it to receive fluid circulation tubes of elongated cross section. , characterized in that it is formed from two parts assembled in a fluid-tight manner and each extending over a part of the circumference of the tubular wall, and in that tabs cut out from the wall to form said openings are folded substantially along the longitudinal axis of the tubes and respectively at the two ends of each opening.
  • the legs can be oriented outward or inward.
  • the openings and the tabs are made in one of the two parts.
  • the two tabs then deviate slightly from each other towards the outside of the wall to ensure centering of the corresponding tube at the time of assembly.
  • the openings are each formed by two notches made respectively in the two parts, the two tabs associated with the same opening belonging respectively to the two parts.
  • the two legs can then be substantially parallel to each other.
  • the assembly can be carried out by a movement of each component part of the tubular wall perpendicular to the longitudinal direction of the tubes.
  • the invention also relates to a method for manufacturing a heat exchanger comprising a tubular wall as defined above and a row of fluid circulation tubes of elongate cross section engaging the openings, method in which each of the two constituent parts of the tubular wall is moved relative to the row of tubes in the longitudinal direction of the cross section thereof, the two parts being moved towards each other on either side of the ends of the tubes, which penetrate into the notches of the parts, until the tabs abut on the tubes, and the two parts are assembled in a leaktight manner.
  • At least one disc intended to form a transverse partition of the fluid box is placed on one of the two parts, the peripheral edge of this disc coming into contact with the concave internal surface of the second part at the end of the relative movement of the two parts and then being tightly linked thereto.
  • Figure 1 shows by way of example a fluid box 1 comprising a tubular wall 2 having six openings 3-1 to 3-6 for receiving as many fluid circulation tubes of which only four are partially represented under the references 4-2 , 4-3, 4-5 and 4-6 to allow a better view of the tubular wall.
  • a spacer 5 consisting of a strip of metal sheet folded in a zigzag or curved in the form of a sinusoid is placed between the tubes 4-5 and 4-6 and in thermal contact with them. Such spacers are associated with each pair of consecutive tubes of the condenser.
  • the tubular wall 2 is formed of two substantially semi-cylindrical parts 6 and 7, the part 7 being partially torn off to allow a better view of the part 6.
  • the longitudinal marginal zones 8 and 9 (FIG. 2) of the part 7 externally cover the longitudinal longitudinal zones 10 and 11 respectively of the part 6 to which they are assembled in a sealed manner to the fluid intended to circulate in the condenser, for example by brazing.
  • Each of the openings 3 is formed by a notch formed in the part 6 from the zone 10 and by a notch formed in the part 7 from the zone 8.
  • the two sides of each notch are connected to the corresponding edge of the part. by a chamfer 12.
  • a tab 13 is left attached to the remaining part of part 6 or 7, at the bottom of each notch, and extending outward of the fluid box parallel to the longitudinal direction of the tubes.
  • the two tabs 13 associated with the same opening 3 come to bear respectively on the two small longitudinal sides 14 of the corresponding tube 4, that is to say at the ends of the elongated cross section of the tube.
  • FIG. 1 also shows a partition 15 intended to limit the fluid box 1 at one longitudinal end thereof, another similar partition not visible being provided at the opposite end.
  • the partition 15 is formed by a disc of which a part 16 of the peripheral edge is in sealed contact with the internal surface of the part 6 and another part 17 of the peripheral edge is in sealed contact with the internal surface of the part 7, one or several marginal regions of the disc, limited in the circumferential direction, being housed in openings or notches 18 passing through the thickness of the piece 6, so as to allow positioning of the disc relative to the piece 6 during assembly.
  • the region 17 of the peripheral edge of the disc 15 approaches the inner surface of the part 7 and comes into contact with the latter at the end of the stroke. Sealing at this level can then be achieved for example by brazing, the sealed connection between the disc 15 and the part 6 can be performed at the same time, during the brazing operation of all the parts.
  • the longitudinal marginal zones 8, 10, 9, 11, overlapping two by two, parts 6 and 7 constituting the tubular wall of the fluid box are located substantially in the median longitudinal plane P of the fluid box 1 and the row of tubes 4.
  • these marginal zones are located on either side of the median longitudinal plane, the openings for passage of the tubes and the legs being formed in only one of these rooms.
  • the assembly between this part and the tubes is then done in the usual way by a relative movement in the longitudinal direction of the tubes.
  • the legs ensure centering of the tubes in the longitudinal direction of their cross section. For this purpose, preferably, they deviate slightly from each other in this direction, at least in their end region.

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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)
  • Air-Conditioning For Vehicles (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

The tube wall is formed by two semicylindrical pieces (6, 7) assembled in a leaktight manner by their longitudinal edges (8, 10, 9, 11). Each opening for the passage of a circulation tube (4) is formed by two notches made in the two pieces respectively, starting from one of their edges (8, 10), and tabs (13) cut out during the production of these notches and adjacent to their bottom are folded outwards from the fluid (header) box in order to be flattened against the sides (14) of the tube. During assembly of the heat exchanger, the two pieces (6, 7) are brought together (arrows F1 and F2) to enclose the tubes (4) which penetrate into the notches. Application to air-conditioning condensers of motor vehicles. <IMAGE>

Description

L'invention concerne les échangeurs de chaleur, notamment les condenseurs de climatisation pour véhicules automobiles, comprenant une boîte à fluide à paroi tubulaire comportant des ouvertures allongées transversalement à son axe et mutuellement alignées le long de celui-ci pour recevoir une rangée de tubes de circulation de fluide.The invention relates to heat exchangers, in particular air conditioning condensers for motor vehicles, comprising a fluid box with a tubular wall having openings elongated transversely to its axis and mutually aligned along it to receive a row of tubes of fluid circulation.

L'assemblage des tubes de circulation et de la paroi tubulaire est habituellement réalisé en déplaçant cette dernière, par rapport à l'ensemble des tubes alignés, dans la direction longitudinale de ceux-ci de façon à faire pénétrer les extrémités des tubes dans les ouvertures de la paroi tubulaire. Si, dans un dispositif automatique d'assemblage, la paroi tubulaire est très légèrement décalée latéralement par rapport à la rangée de tubes, ou si ceux-ci ne sont pas parfaitement alignés, les extrémités des tubes ou de certains d'entre eux ne viendront pas rigoureusement en coïncidence avec les ouvertures, ce qui entraînera une détérioration des pièces concernées ou un blocage de l'opération d'assemblage.The assembly of the circulation tubes and of the tubular wall is usually carried out by moving the latter, relative to the set of aligned tubes, in the longitudinal direction thereof so as to penetrate the ends of the tubes into the openings of the tubular wall. If, in an automatic assembly device, the tubular wall is very slightly offset laterally with respect to the row of tubes, or if these are not perfectly aligned, the ends of the tubes or of some of them will not come not strictly in coincidence with the openings, which will cause deterioration of the parts concerned or a blocking of the assembly operation.

Le but de l'invention est de remédier à cet inconvénient.The object of the invention is to remedy this drawback.

A cet effet, l'invention vise une paroi tubulaire pour boîte à fluide d'échangeur de chaleur, comportant des ouvertures allongées transversalement à son axe et mutuellement alignées le long de celui-ci pour recevoir des tubes de circulation de fluide de section transversale allongée, caractérisée en ce qu'elle est formée de deux pièces assemblées de façon étanche au fluide et s'étendant chacune sur une partie de la circonférence de la paroi tubulaire, et en ce que des pattes découpées dans la paroi pour former lesdites ouvertures sont repliées sensiblement suivant l'axe longitudinal des tubes et respectivement aux deux extrémités de chaque ouverture.To this end, the invention relates to a tubular wall for a heat exchanger fluid box, having openings elongated transversely to its axis and mutually aligned along it to receive fluid circulation tubes of elongated cross section. , characterized in that it is formed from two parts assembled in a fluid-tight manner and each extending over a part of the circumference of the tubular wall, and in that tabs cut out from the wall to form said openings are folded substantially along the longitudinal axis of the tubes and respectively at the two ends of each opening.

Les pattes peuvent être orientées vers l'extérieur ou vers l'interieur.The legs can be oriented outward or inward.

Selon un mode de réalisation de l'invention, les ouvertures et les pattes sont réalisées dans une seule des deux pièces. Avantageusement, les deux pattes s'écartent alors légèrement l'une de l'autre vers l'extérieur de la paroi pour assurer un centrage du tube correspondant au moment de l'assemblage.According to one embodiment of the invention, the openings and the tabs are made in one of the two parts. Advantageously, the two tabs then deviate slightly from each other towards the outside of the wall to ensure centering of the corresponding tube at the time of assembly.

Selon un autre mode de réalisation, les ouvertures sont formées chacune par deux encoches ménagées respectivement dans les deux pièces, les deux pattes associées à une même ouverture appartenant respectivement aux deux pièces. Les deux pattes peuvent être alors sensiblement parallèles l'une à l'autre.According to another embodiment, the openings are each formed by two notches made respectively in the two parts, the two tabs associated with the same opening belonging respectively to the two parts. The two legs can then be substantially parallel to each other.

Dans ce second mode de réalisation, l'assemblage peut être effectué par un mouvement de chaque pièce constitutive de la paroi tubulaire perpendiculairement à la direction longitudinale des tubes.In this second embodiment, the assembly can be carried out by a movement of each component part of the tubular wall perpendicular to the longitudinal direction of the tubes.

L'invention a également pour objet un procédé de fabrication d'un échangeur de chaleur comprenant une paroi tubulaire telle que définie ci-dessus et une rangée de tubes de circulation de fluide de section transversale allongée s'engageant dans les ouvertures, procédé dans lequel on déplace chacune des deux pièces constitutives de la paroi tubulaire par rapport à la rangée des tubes dans la direction longitudinale de la section droite de ceux-ci, les deux pièces étant déplacées l'une vers l'autre de part et d'autre des extrémités des tubes, qui pénètrent dans les encoches des pièces, jusqu'à ce que les pattes viennent en butée sur les tubes, et on assemble les deux pièces de façon étanche.The invention also relates to a method for manufacturing a heat exchanger comprising a tubular wall as defined above and a row of fluid circulation tubes of elongate cross section engaging the openings, method in which each of the two constituent parts of the tubular wall is moved relative to the row of tubes in the longitudinal direction of the cross section thereof, the two parts being moved towards each other on either side of the ends of the tubes, which penetrate into the notches of the parts, until the tabs abut on the tubes, and the two parts are assembled in a leaktight manner.

Selon une caractéristique complémentaire du procédé, on met en place sur l'une des deux pièces au moins un disque destiné à former une cloison transversale de la boîte à fluide, le bord périphérique de ce disque venant en contact avec la surface interne concave de la seconde pièce à la fin du mouvement relatif des deux pièces et étant ensuite lié de façon étanche à celle-ci.According to an additional characteristic of the process, at least one disc intended to form a transverse partition of the fluid box is placed on one of the two parts, the peripheral edge of this disc coming into contact with the concave internal surface of the second part at the end of the relative movement of the two parts and then being tightly linked thereto.

D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée donnée ci-après d'un exemple de réalisation, et des dessins annexés dans lesquels :

  • la figure 1 est une vue partielle en perspective, partiellement arrachée, d'un condenseur selon l'invention; et
  • la figure 2 est une vue partielle en coupe du condenseur de la figure 1, selon le plan longitudinal médian d'un tube.
Other characteristics and advantages of the invention will emerge from the detailed description given below of an exemplary embodiment, and from the appended drawings in which:
  • Figure 1 is a partial perspective view, partially broken away, of a condenser according to the invention; and
  • Figure 2 is a partial sectional view of the condenser of Figure 1, along the median longitudinal plane of a tube.

La figure 1 représente à titre d'exemple une boîte à fluide 1 comprenant une paroi tubulaire 2 présentant six ouvertures 3-1 à 3-6 pour recevoir autant de tubes de circulation de fluide dont quatre seulement sont représentés partiellement sous les références 4-2, 4-3, 4-5 et 4-6 pour permettre de mieux voir la paroi tubulaire. Un intercalaire 5 constitué par une bande de tôle métallique pliée en zigzag ou courbée en forme de sinusoïde est placée entre les tubes 4-5 et 4-6 et en contact thermique avec ceux-ci. De tels intercalaires sont associés à chaque paire de tubes consécutifs du condenseur.Figure 1 shows by way of example a fluid box 1 comprising a tubular wall 2 having six openings 3-1 to 3-6 for receiving as many fluid circulation tubes of which only four are partially represented under the references 4-2 , 4-3, 4-5 and 4-6 to allow a better view of the tubular wall. A spacer 5 consisting of a strip of metal sheet folded in a zigzag or curved in the form of a sinusoid is placed between the tubes 4-5 and 4-6 and in thermal contact with them. Such spacers are associated with each pair of consecutive tubes of the condenser.

La paroi tubulaire 2 est formée de deux pièces sensiblement semi-cylindriques 6 et 7, la pièce 7 étant partiellement arrachée pour permettre de mieux voir la pièce 6. Les zones marginales longitudinales 8 et 9 (figure 2) de la pièce 7 recouvrent extérieurement les zones marginales longitudinales 10 et 11 respectivement de la pièce 6 auxquels elles sont assemblées de façon étanche au fluide destiné à circuler dans le condenseur, par exemple par brasage.The tubular wall 2 is formed of two substantially semi-cylindrical parts 6 and 7, the part 7 being partially torn off to allow a better view of the part 6. The longitudinal marginal zones 8 and 9 (FIG. 2) of the part 7 externally cover the longitudinal longitudinal zones 10 and 11 respectively of the part 6 to which they are assembled in a sealed manner to the fluid intended to circulate in the condenser, for example by brazing.

Chacune des ouvertures 3 est formée par une encoche ménagée dans la pièce 6 à partir de la zone 10 et par une encoche ménagée dans la pièce 7 à partir de la zone 8. Les deux côtés de chaque encoche se raccordent au bord correspondant de la pièce par un chanfrein 12. Au lieu d'éliminer complètement la matière découpée dans les pièces 6 et 7 pour former les encoches, on laisse subsister une patte 13 rattachée à la partie restante de la pièce 6 ou 7, au fond de chaque encoche, et s'étendant vers l'extérieur de la boîte à fluide parallèlement à la direction longitudinale des tubes. Les deux pattes 13 associées à une même ouverture 3 viennent en appui respectivement sur les deux petits côtés longitudinaux 14 du tube 4 correspondant, c'est-à-dire aux extrémités de la section transversale allongée du tube.Each of the openings 3 is formed by a notch formed in the part 6 from the zone 10 and by a notch formed in the part 7 from the zone 8. The two sides of each notch are connected to the corresponding edge of the part. by a chamfer 12. Instead of completely eliminating the material cut from parts 6 and 7 to form the notches, a tab 13 is left attached to the remaining part of part 6 or 7, at the bottom of each notch, and extending outward of the fluid box parallel to the longitudinal direction of the tubes. The two tabs 13 associated with the same opening 3 come to bear respectively on the two small longitudinal sides 14 of the corresponding tube 4, that is to say at the ends of the elongated cross section of the tube.

On voit que, pour assembler la paroi tubulaire 2 et les tubes 4, il suffit de déplacer les pièces 6 et 7 l'une vers l'autre et chacune par rapport à la rangée de tubes selon les flèches F1 et F2 respectivement de la figure 2, c'est-à-dire dans la direction longitudinale de la section droite des tubes. Chaque tube pénètre alors dans deux encoches appartenant aux deux pièces respectivement, les chanfreins 12 assurant si nécessaire un centrage des tubes dans les encoches et facilitant leur introduction. Le mouvement se poursuit jusqu'à ce que les pattes 13 viennent en butée sur les côtés 14 des tubes. On procède alors à la liaison étanche des zones 8 et 10, 9 et 11 des pièces 6 et 7, ainsi qu'à celle des tubes avec la paroi tubulaire.We see that, to assemble the tubular wall 2 and the tubes 4, it suffices to move the parts 6 and 7 towards each other and each with respect to the row of tubes according to the arrows F1 and F2 respectively of the figure 2, that is to say in the longitudinal direction of the cross section of the tubes. Each tube then enters two notches belonging to the two parts respectively, the chamfers 12 ensuring, if necessary, centering of the tubes in the notches and facilitating their introduction. The movement continues until the legs 13 abut on the sides 14 of the tubes. We then proceed to the sealed connection of the zones 8 and 10, 9 and 11 of the parts 6 and 7, as well as that of the tubes with the tubular wall.

La figure 1 montre également une cloison 15 destinée à limiter la boîte à fluide 1 à une extrémité longitudinale de celle-ci, une autre cloison semblable non visible étant prévue à l'extrémité opposée. La cloison 15 est formée par un disque dont une partie 16 du bord périphérique est en contact étanche avec la surface intérieure de la pièce 6 et une autre partie 17 du bord périphérique est en contact étanche avec la surface intérieure de la pièce 7, une ou plusieurs régions marginales du disque, limitées dans la direction circonférentielle, étant logées dans des ouvertures ou des encoches 18 traversant l'épaisseur de la pièce 6, de façon à permettre un positionnement du disque par rapport à la pièce 6 en cours d'assemblage. Lors du mouvement relatif des pièces 6 et 7 décrit plus haut, la région 17 du bord périphérique du disque 15 s'approche de la surface intérieure de la pièce 7 et vient en contact avec celle-ci en fin de course. L'étanchéité à ce niveau peut alors être réalisée par exemple par brasage, la liaison étanche entre le disque 15 et la pièce 6 pouvant être réalisée en même temps, lors de l'opération de brasage de l'ensemble des pièces.FIG. 1 also shows a partition 15 intended to limit the fluid box 1 at one longitudinal end thereof, another similar partition not visible being provided at the opposite end. The partition 15 is formed by a disc of which a part 16 of the peripheral edge is in sealed contact with the internal surface of the part 6 and another part 17 of the peripheral edge is in sealed contact with the internal surface of the part 7, one or several marginal regions of the disc, limited in the circumferential direction, being housed in openings or notches 18 passing through the thickness of the piece 6, so as to allow positioning of the disc relative to the piece 6 during assembly. During the relative movement of the parts 6 and 7 described above, the region 17 of the peripheral edge of the disc 15 approaches the inner surface of the part 7 and comes into contact with the latter at the end of the stroke. Sealing at this level can then be achieved for example by brazing, the sealed connection between the disc 15 and the part 6 can be performed at the same time, during the brazing operation of all the parts.

Dans l'exemple décrit, les zones marginales longitudinales 8, 10, 9, 11, se recouvrant deux à deux, des pièces 6 et 7 constituant la paroi tubulaire de la boîte à fluide, sont situées sensiblement dans le plan longitudinal médian P de la boîte à fluide 1 et de la rangée de tubes 4. Dans une variante non illustrée, ces zones marginales sont situées de part et d'autre du plan longitudinal médian, les ouvertures de passage des tubes et les pattes étant ménagées dans une seule de ces pièces. L'assemblage entre cette pièce et les tubes se fait alors de la façon habituelle par un mouvement relatif dans la direction longitudinale des tubes. Dans ce cas, les pattes assurent un centrage des tubes dans la direction longitudinale de leur section transversale. A cet effet, de préférence, elles s'écartent légèrement l'une de l'autre dans cette direction, au moins dans leur région d'extrémité.In the example described, the longitudinal marginal zones 8, 10, 9, 11, overlapping two by two, parts 6 and 7 constituting the tubular wall of the fluid box, are located substantially in the median longitudinal plane P of the fluid box 1 and the row of tubes 4. In a variant not shown, these marginal zones are located on either side of the median longitudinal plane, the openings for passage of the tubes and the legs being formed in only one of these rooms. The assembly between this part and the tubes is then done in the usual way by a relative movement in the longitudinal direction of the tubes. In this case, the legs ensure centering of the tubes in the longitudinal direction of their cross section. For this purpose, preferably, they deviate slightly from each other in this direction, at least in their end region.

Claims (10)

Paroi tubulaire (2) pour boîte à fluide (1) d'échangeur de chaleur, comportant des ouvertures (3-1 à 3-6) allongées transversalement à son axe et mutuellement alignées le long de celui-ci pour recevoir des tubes de circulation de fluide (4) de section transversale allongée, caractérisée en ce qu'elle est formée de deux pièces (6,7) assemblées de façon étanche au fluide et s'étendant chacune sur une partie de la circonférence de la paroi tubulaire, et en ce que des pattes (13) découpées dans la paroi pour former lesdites ouvertures sont repliées sensiblement suivant l'axe longitudinal des tubes (4) et respectivement aux deux extrémités de chaque ouverture (3-1 à 3-6).Tubular wall (2) for a heat exchanger fluid box (1), comprising openings (3-1 to 3-6) elongated transversely to its axis and mutually aligned along it to receive circulation tubes of fluid (4) of elongated cross section, characterized in that it is formed of two parts (6,7) assembled in a fluid-tight manner and each extending over a part of the circumference of the tubular wall, and in that the tabs (13) cut in the wall to form said openings are folded substantially along the longitudinal axis of the tubes (4) and respectively at the two ends of each opening (3-1 to 3-6). Paroi tubulaire selon la revendication 1, caractérisée en ce que les pattes sont orientées vers l'extérieur.Tubular wall according to claim 1, characterized in that the legs are oriented towards the outside. Paroi tubulaire selon la revendication 1, caractérisée en ce que les pattes sont orientées vers l'intérieur.Tubular wall according to claim 1, characterized in that the legs are oriented inward. Paroi tubulaire selon l'une des revendications précédentes, caractérisée en ce que les ouvertures et les pattes sont réalisées dans une seule desdites deux pièces.Tubular wall according to one of the preceding claims, characterized in that the openings and the tabs are made in only one of said two parts. Paroi tubulaire selon la revendication 4, caractérisée en ce que les deux pattes s'écartent légèrement l'une de l'autre vers l'extérieur de la paroi.Tubular wall according to claim 4, characterized in that the two legs deviate slightly from one another towards the outside of the wall. Paroi tubulaire selon l'une des revendications 1 à 3, caractérisée en ce que les ouvertures sont formées chacune par deux encoches ménagées respectivement dans lesdites deux pièces, les deux pattes associées à une même ouverture appartenant respectivement aux deux pièces.Tubular wall according to one of claims 1 to 3, characterized in that the openings are each formed by two notches formed respectively in said two parts, the two tabs associated with the same opening belonging respectively to the two parts. Paroi tubulaire selon la revendication 6, caractérisée en ce que les deux pattes sont sensiblement parallèles l'une à l'autre.Tubular wall according to claim 6, characterized in that the two legs are substantially parallel to each other. Paroi tubulaire selon l'une des revendications 6 et 7, caractérisée en ce que l'entrée des encoches est élargie par des chanfreins (12).Tubular wall according to one of claims 6 and 7, characterized in that the entry of the notches is widened by chamfers (12). Procédé de fabrication d'un échangeur de chaleur comprenant une paroi tubulaire (2) selon l'une des revendications 6 à 8, et une rangée de tubes (4) de circulation de fluide de section transversale allongée s'engageant dans les ouvertures (3), procédé dans lequel on déplace chacune des deux pièces (6,7) constitutives de la paroi tubulaire par rapport à la rangée des tubes dans la direction longitudinale de la section droite de ceux-ci, les deux pièces étant déplacées l'une vers l'autre (flèches F1 et F2) de part et d'autre des extrémités des tubes, qui pénètrent dans les encoches des pièces, jusqu'à ce que les pattes viennent en butée sur les tubes, et on assemble les deux pièces de façon étanche.Method of manufacturing a heat exchanger comprising a tubular wall (2) according to one of claims 6 to 8, and a row of tubes (4) for circulation of fluid of elongated cross section engaging in the openings (3 ), method in which each of the two parts (6, 7) constituting the tubular wall is displaced relative to the row of tubes in the longitudinal direction of the cross section thereof, the two parts being displaced one towards the other (arrows F1 and F2) on either side of the ends of the tubes, which penetrate into the notches of the parts, until the legs come into abutment on the tubes, and the two parts are assembled so waterproof. Procédé selon la revendication 9, caractérisé en ce qu'on met en place sur l'une des deux pièces au moins un disque (15) destiné à former une cloison transversale de la boîte à fluide, le bord périphérique (17) de ce disque venant en contact avec la surface interne concave de la seconde pièce à la fin du mouvement relatif des deux pièces et étant ensuite lié de façon étanche à celle-ci.Method according to claim 9, characterized in that at least one disc (15) intended to form a transverse partition of the fluid box is placed on one of the two parts, the peripheral edge (17) of this disc coming into contact with the concave internal surface of the second part at the end of the relative movement of the two parts and then being tightly bonded thereto.
EP93402525A 1992-10-14 1993-10-13 Tube wall in two parts and process for manufacturing a condenser for the airconditioning of a motor vehicle Withdrawn EP0593360A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9212302 1992-10-14
FR9212302A FR2696809B1 (en) 1992-10-14 1992-10-14 Tubular wall in two parts and method for manufacturing a motor vehicle air conditioning condenser.

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EP0593360A1 true EP0593360A1 (en) 1994-04-20

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EP93402525A Withdrawn EP0593360A1 (en) 1992-10-14 1993-10-13 Tube wall in two parts and process for manufacturing a condenser for the airconditioning of a motor vehicle

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US (1) US5363911A (en)
EP (1) EP0593360A1 (en)
JP (1) JPH06194089A (en)
KR (1) KR940009570A (en)
BR (1) BR9304226A (en)
FR (1) FR2696809B1 (en)

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FR2757617A1 (en) * 1996-12-23 1998-06-26 Valeo Thermique Moteur Sa TWO-PART COLLECTOR BOX FOR CONDENSER
DE19722100A1 (en) * 1997-03-11 1998-09-17 Behr Gmbh & Co Heat exchanger, in particular charge air cooler, for a motor vehicle
EP0864839A3 (en) * 1997-03-11 1999-04-21 Behr GmbH & Co. Heat exchanger, more particularly supercharge air cooler, for automotive vehicle
FR2786560A1 (en) * 1998-11-30 2000-06-02 Valeo Thermique Moteur Sa Heat exchanger for motor vehicle has manifolds each formed from U-shaped metal half shells brazed together
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FR2786560A1 (en) * 1998-11-30 2000-06-02 Valeo Thermique Moteur Sa Heat exchanger for motor vehicle has manifolds each formed from U-shaped metal half shells brazed together

Also Published As

Publication number Publication date
FR2696809A1 (en) 1994-04-15
KR940009570A (en) 1994-05-20
BR9304226A (en) 1994-04-19
US5363911A (en) 1994-11-15
JPH06194089A (en) 1994-07-15
FR2696809B1 (en) 1994-12-02

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