EP1044349B1 - Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle - Google Patents

Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle Download PDF

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Publication number
EP1044349B1
EP1044349B1 EP99950851A EP99950851A EP1044349B1 EP 1044349 B1 EP1044349 B1 EP 1044349B1 EP 99950851 A EP99950851 A EP 99950851A EP 99950851 A EP99950851 A EP 99950851A EP 1044349 B1 EP1044349 B1 EP 1044349B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
module according
snap
fan shroud
header box
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.)
Expired - Lifetime
Application number
EP99950851A
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German (de)
French (fr)
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EP1044349A1 (en
Inventor
Christian Mahe
Carlos Alberto Martins
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
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Valeo Thermique Moteur SA
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Publication of EP1044349A1 publication Critical patent/EP1044349A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • F28F9/002—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core with fastening means for other structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/08—Fastening; Joining by clamping or clipping
    • F28F2275/085—Fastening; Joining by clamping or clipping with snap connection

Definitions

  • the invention relates to a heat exchange module comprising a fan nozzle assembled with a heat exchanger with two manifold boxes according to the preamble of claim 1.
  • a heat exchange module comprising a fan nozzle assembled with a heat exchanger with two manifold boxes according to the preamble of claim 1.
  • Such a module is shown in DE-A-3 744 644.
  • the fan nozzle is equipped with one or more motor-fan groups to channel a flow of air capable of sweeping the body or bundle of the heat exchanger.
  • the fan nozzle is provided with lugs which are fixed to the manifolds of the heat exchanger by means of screws or the like. These are usually self-tapping screws introduced into studs or bosses specially fitted on the manifolds of the heat exchanger.
  • Such an assembly constitutes a long operation and can be compatible with the high rates of assembly or assembly lines in the automotive industry.
  • the main object of the invention is to overcome such a drawback.
  • the fan nozzle comprises at least two studs which extend from a first side of the nozzle and which are suitable for engage in corresponding housings of a first manifold of the heat exchanger, as well as at least two elastic snap-on tabs which extend from a second side of the fan nozzle in a direction opposite to the studs, said tabs each being provided with an opening suitable for passing a lug projecting from one side side of a second manifold of the heat exchanger.
  • each latching tab depends on a stirrup which is attached to the second side of the fan nozzle and which provides an opening capable of being crossed by a pin secured to a wall end of the manifold, so that the assembly of the fan nozzle on the heat exchanger includes a final introduction phase in which the studs penetrate into the housings and simultaneously the pins penetrate into the openings of the stirrups .
  • each bracket comprises a bridge in which the opening is formed, and to which the latching tab is attached, as well as two branches connecting the bridge to the second side of the fan nozzle, in so that, during the final phase of the introduction, the latching tab first deviates laterally under the action of the lug and then approaches, letting the lug penetrate into the opening of the lug d snap.
  • each lug comprises a sloping wall, forming a ramp, to facilitate the spacing of the latching tab.
  • the fan nozzle comprises two spaced-apart latching tabs, one of which is capable of ensuring a positioning reference and the other of which makes up for dispersion between the second manifold and the fan nozzle.
  • the housings of the first manifold are each formed by a U-shaped bracket.
  • the fan nozzle comprises three spaced apart pads suitable for engaging respectively in three housings of the first manifold.
  • the fan nozzle as well as its studs and its latching lugs are made in one piece by molding a plastic material.
  • first manifold and its housings are made in one piece by molding a plastic material.
  • second manifold and its lugs are advantageously made in one piece by molding a plastic material.
  • the first manifold and the second manifold are provided to extend horizontally, respectively in the lower part and in the upper part of the heat exchanger.
  • the heat exchanger constitutes a radiator for cooling a motor vehicle engine.
  • the module shown in FIGS. 1 and 4 comprises a heat exchanger 10, here constituted by a radiator for cooling a motor vehicle engine, on which a fan nozzle 12 is assembled.
  • the heat exchanger 10 comprises a body or bundle 14 formed of vertical tubes (not shown) and connected respectively to a first manifold box 16 and to a second manifold box 18. These two manifolds are generally horizontal in direction and are provided for be placed respectively in the lower and upper part of the heat exchanger.
  • the latter comprises an inlet pipe 20 and an outlet pipe 22 (FIG. 1) serving respectively for the admission and the evacuation of a liquid passing through the heat exchanger, in the example a coolant d 'a motor vehicle engine.
  • a liquid passing through the heat exchanger in the example a coolant d 'a motor vehicle engine.
  • this liquid flows through the heat exchanger in a downward vertical direction.
  • the manifolds 16 and 18 are produced by molding a plastic material, for example of the polypropylene type.
  • the fan nozzle 12 comprises (FIG. 1) a bottom plate 24 of generally rectangular shape which is provided for extend parallel and opposite a large face 26 ( Figure 4) of the body 14 of the exchanger.
  • This bottom plate provides a circular opening 28 (FIG. 1) intended to house a motor-fan group (not shown) comprising an electric motor driving a propeller.
  • This motor-fan unit is supported by an open structure 30 attached to a circular cylindrical wall 32 attached to the bottom plate 24.
  • the assembly constituted by the bottom plate 24, the open structure 30 and the cylindrical wall 32 is made of 'a single piece by molding a plastic material, in particular of the polypropylene type, to constitute the fan nozzle as a whole.
  • This fan nozzle is designed to be assembled with the heat exchanger, so that the motor-fan unit can force a flow of air, by blowing or by suction, and that this flow is channeled to sweep the body 14 of the heat exchanger and cool the liquid which flows through this heat exchanger.
  • the fan nozzle 12 comprises, in the lower part, three studs 34 (only two of which are visible in FIG. 1). These pads extend from a first side 36 (lower horizontal side) of the nozzle 12 and are directed vertically downwards. These studs thus extend substantially in the plane defined by the bottom plate 24 of the nozzle 12.
  • a central stud is advantageously provided framed by two lateral studs, these studs having come from molding with the fan nozzle 12.
  • These three studs 34 are suitable for engaging in respective housings 38 formed by U-shaped stirrups 40, molded with the manifold 16 ( Figures 1 and 4). Thus, the studs 34 can be introduced simultaneously into the housings 38 by a substantially vertical downward movement.
  • the fan nozzle 12 further comprises two latching tabs 42 (FIGS. 1, 2 and 4) only one of which is visible in FIG. 1. These two tabs are both attached to a second side 44 (upper horizontal side) of the nozzle 12, so as to extend opposite the studs 34.
  • Each of the tabs 42 depends on a stirrup 46 which is attached to the second side 44 of the fan nozzle. More particularly, this stirrup 46 comprises a bridge 48 to which the latching tab is attached, as well as two parallel branches 50 connecting the bridge 48 to the side 44 of the fan nozzle. These branches 50 extend in the extension of the bottom plate 24 of the nozzle.
  • the bridge 48 constitutes a generally rectangular plate which extends in a plane substantially perpendicular to that of the bottom plate 24 and which is provided with an opening 70.
  • the tab 42 is an elastic tab which has an end 52 connected to the bridge 48 and a curved end 54 directed towards the side 44 of the nozzle and which extends parallel to this side.
  • the tab 42 is capable of moving apart elastically while struggling inside the housing 56 which is delimited between the two parallel branches 50.
  • This tab 42 has an internal opening 58 suitable for delivering passage to a lug 60 ( Figures 1, 3 and 4) projecting from a lateral face 62 of the manifold 18.
  • a lug 60 ( Figures 1, 3 and 4) projecting from a lateral face 62 of the manifold 18.
  • Each lug 60 comprises a sloping wall 64 forming a ramp.
  • each lug 60 Near each lug 60 is provided a pin 66 ( Figures 1, 3 and 4) which extends from an end face 68 of the manifold 18, this end wall being substantially perpendicular to the wall lateral 62 on which the lug 60 depends.
  • the latching tabs 42 and the corresponding stirrups 46 have come from molding with the fan nozzle 12. From even, the pins 60 and the pins 66 came from molding with the manifold 18.
  • the latching tabs 52 first move apart, under the action of the ramps 64 of the lugs 60 and then come together again when the lugs 60 engage in the openings 58 of the lugs 42.
  • the latching lugs then ensure the locking of the nozzle and of the exchanger which are kept immobilized relative to each other.
  • latching tabs 42 are not necessarily strictly identical. Thus, it is advantageous that one of these tabs is capable of ensuring a positioning reference and that the other is capable of catching up with a dispersion between the manifold 18 and the fan nozzle 12.

Landscapes

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

Description

L'invention se rapporte à un module d'échange de chaleur comprenant une buse de ventilateur assemblée à un échangeur de chaleur à deux boîtes collectrices selon le preambule de la revendication 1. Un tel module est montré dans DE-A-3 744 644.The invention relates to a heat exchange module comprising a fan nozzle assembled with a heat exchanger with two manifold boxes according to the preamble of claim 1. Such a module is shown in DE-A-3 744 644.

Il est déjà connu d'assembler une buse de ventilateur sur un échangeur de chaleur, tel qu'un radiateur de refroidissement d'un moteur de véhicule automobile. Dans une telle application, la buse de ventilateur est équipée d'un ou plusieurs groupes moto-ventilateurs pour canaliser un flux d'air propre à balayer le corps ou faisceau de l'échangeur de chaleur.It is already known to assemble a fan nozzle on a heat exchanger, such as a radiator for cooling a motor vehicle engine. In such an application, the fan nozzle is equipped with one or more motor-fan groups to channel a flow of air capable of sweeping the body or bundle of the heat exchanger.

Généralement, la buse de ventilateur est munie de pattes qui sont fixées sur les boîtes collectrices de l'échangeur de chaleur par l'intermédiaire de vis ou analogues. Il s'agit habituellement de vis auto-taraudeuses introduites dans des plots ou bossages spécialement aménagés sur les boîtes collectrices de l'échangeur de chaleur.Generally, the fan nozzle is provided with lugs which are fixed to the manifolds of the heat exchanger by means of screws or the like. These are usually self-tapping screws introduced into studs or bosses specially fitted on the manifolds of the heat exchanger.

Un tel assemblage constitue une opération longue et peut compatible avec les cadences élevées des chaînes d'assemblage ou de montage de l'industrie automobile.Such an assembly constitutes a long operation and can be compatible with the high rates of assembly or assembly lines in the automotive industry.

L'invention a principalement pour but de surmonter un tel inconvénient.The main object of the invention is to overcome such a drawback.

Elle propose à cet effet un module d'échange de chaleur du type défini en introduction, dans lequel la buse de ventilateur comprend au moins deux plots qui s'étendent à partir d'un premier côté de la buse et qui sont propres à s'engager dans des logements correspondants d'une première boîte collectrice de l'échangeur de chaleur, ainsi qu'au moins deux pattes élastiques d'encliquetage qui s'étendent à partir d'un deuxième côté de la buse de ventilateur dans une direction opposée aux plots, lesdites pattes étant munies chacune d'une ouverture propre à livrer passage à un ergot faisant saillie d'une face latérale d'une deuxième boîte collectrice de l'échangeur de chaleur.To this end, it offers a heat exchange module of the type defined in the introduction, in which the fan nozzle comprises at least two studs which extend from a first side of the nozzle and which are suitable for engage in corresponding housings of a first manifold of the heat exchanger, as well as at least two elastic snap-on tabs which extend from a second side of the fan nozzle in a direction opposite to the studs, said tabs each being provided with an opening suitable for passing a lug projecting from one side side of a second manifold of the heat exchanger.

Ainsi, pour réaliser l'assemblage de la buse de ventilateur sur l'échangeur de chaleur, il suffit d'engager les plots de la buse dans les logements de la première boîte collectrice et d'engager les ergots de la buse dans les ouvertures correspondantes des pattes d'encliquetage. Cet assemblage permet de réaliser un module sans nécessiter de faire appel à des vis de fixation ou analogues, et à des outils.Thus, to carry out the assembly of the fan nozzle on the heat exchanger, it suffices to engage the studs of the nozzle in the housings of the first manifold and to engage the pins of the nozzle in the corresponding openings snap tabs. This assembly makes it possible to produce a module without requiring the use of fixing screws or the like, and of tools.

Dans une forme de réalisation préférée de l'invention, chaque patte d'encliquetage dépend d'un étrier qui est rattaché au deuxième côté de la buse de ventilateur et qui ménage une ouverture susceptible d'être traversée par un pion solidaire d'une paroi d'extrémité de la boîte collectrice, en sorte que l'assemblage de la buse de ventilateur sur l'échangeur de chaleur comprend une phase finale d'introduction dans laquelle les plots pénètrent dans les logements et simultanément les pions pénètrent dans les ouvertures des étriers.In a preferred embodiment of the invention, each latching tab depends on a stirrup which is attached to the second side of the fan nozzle and which provides an opening capable of being crossed by a pin secured to a wall end of the manifold, so that the assembly of the fan nozzle on the heat exchanger includes a final introduction phase in which the studs penetrate into the housings and simultaneously the pins penetrate into the openings of the stirrups .

Selon encore une autre caractéristique de l'invention, chaque étrier comprend un pont dans lequel est formée l'ouverture, et auquel se rattache la patte d'encliquetage, ainsi que deux branches reliant le pont au deuxième côté de la buse de ventilateur, en sorte que, lors de la phase finale de l'introduction, la patte d'encliquetage s'écarte d'abord latéralement sous l'action de l'ergot puis se rapproche en laissant l'ergot pénétrer dans l'ouverture de la patte d'encliquetage.According to yet another characteristic of the invention, each bracket comprises a bridge in which the opening is formed, and to which the latching tab is attached, as well as two branches connecting the bridge to the second side of the fan nozzle, in so that, during the final phase of the introduction, the latching tab first deviates laterally under the action of the lug and then approaches, letting the lug penetrate into the opening of the lug d snap.

Avantageusement, chaque ergot comprend une paroi en pente, formant rampe, pour faciliter l'écartement de la patte d'encliquetage.Advantageously, each lug comprises a sloping wall, forming a ramp, to facilitate the spacing of the latching tab.

Dans une forme de réalisation préférée de l'invention, la buse de ventilateur comprend deux pattes d'encliquetage, espacées, dont l'une est propre à assurer une référence de positionnement et l'autre à rattraper une dispersion entre la deuxième boîte collectrice et la buse de ventilateur.In a preferred embodiment of the invention, the fan nozzle comprises two spaced-apart latching tabs, one of which is capable of ensuring a positioning reference and the other of which makes up for dispersion between the second manifold and the fan nozzle.

De préférence, les logements de la première boîte collectrice sont formés chacun par un étrier en U.Preferably, the housings of the first manifold are each formed by a U-shaped bracket.

Dans une forme de réalisation préférée de l'invention, la buse de ventilateur comprend trois plots espacés propres à s'engager respectivement dans trois logements de la première boîte collectrice.In a preferred embodiment of the invention, the fan nozzle comprises three spaced apart pads suitable for engaging respectively in three housings of the first manifold.

De façon avantageuse, la buse de ventilateur ainsi que ses plots et ses pattes d'encliquetage sont réalisés d'une seule pièce par moulage d'une matière plastique.Advantageously, the fan nozzle as well as its studs and its latching lugs are made in one piece by molding a plastic material.

Egalement, il est avantageux que la première boîte collectrice et ses logements soient réalisés d'une seule pièce par moulage d'une matière plastique. De même, la deuxième boîte collectrice et ses ergots sont réalisés avantageusement d'une seule pièce par moulage d'une matière plastique.Also, it is advantageous for the first manifold and its housings to be made in one piece by molding a plastic material. Similarly, the second manifold and its lugs are advantageously made in one piece by molding a plastic material.

Dans une forme de réalisation préférée de l'invention, la première boîte collectrice et la deuxième boîte collectrice sont prévues pour s'étendre horizontalement, respectivement en partie inférieure et en partie supérieure de l'échangeur de chaleur.In a preferred embodiment of the invention, the first manifold and the second manifold are provided to extend horizontally, respectively in the lower part and in the upper part of the heat exchanger.

Dans une application préférentielle de l'invention, l'échangeur de chaleur constitue un radiateur de refroidissement d'un moteur de véhicule automobile.In a preferred application of the invention, the heat exchanger constitutes a radiator for cooling a motor vehicle engine.

Dans la description qui suit, faite à titre d'exemple, on se réfère aux dessins annexés, sur lesquels :

  • La Figure 1 est une vue partielle en perspective d'un module selon l'invention comprenant une buse de ventilateur assemblée sur un échangeur de chaleur ;
  • La Figure 2 est une vue partielle en perspective de la buse de ventilateur du module de la figure 1 ;
  • La Figure 3 est une vue partielle en perspective de l'échangeur de chaleur faisant partie du module de la figure 1 ; et
  • La Figure 4 est une vue en coupe verticale du module de la figure 1.
In the description which follows, given by way of example, reference is made to the appended drawings, in which:
  • Figure 1 is a partial perspective view of a module according to the invention comprising a fan nozzle assembled on a heat exchanger;
  • Figure 2 is a partial perspective view of the fan nozzle of the module of Figure 1;
  • Figure 3 is a partial perspective view of the heat exchanger forming part of the module of Figure 1; and
  • Figure 4 is a vertical sectional view of the module of Figure 1.

Le module représenté aux figures 1 et 4 comprend un échangeur de chaleur 10, constitué ici d'un radiateur de refroidissement d'un moteur de véhicule automobile, sur lequel est assemblée une buse de ventilateur 12.The module shown in FIGS. 1 and 4 comprises a heat exchanger 10, here constituted by a radiator for cooling a motor vehicle engine, on which a fan nozzle 12 is assembled.

L'échangeur de chaleur 10 comprend un corps ou faisceau 14 formé de tubes verticaux (non représentés) et reliés respectivement à une première boîte collectrice 16 et à une deuxième boîte collectrice 18. Ces deux boîtes collectrices sont à direction générale horizontale et sont prévues pour être placées respectivement en partie inférieure et en partie supérieure de l'échangeur de chaleur.The heat exchanger 10 comprises a body or bundle 14 formed of vertical tubes (not shown) and connected respectively to a first manifold box 16 and to a second manifold box 18. These two manifolds are generally horizontal in direction and are provided for be placed respectively in the lower and upper part of the heat exchanger.

Ce dernier comprend une tubulure d'entrée 20 et une tubulure de sortie 22 (figure 1) servant respectivement à l'admission et à l'évacuation d'un liquide parcourant l'échangeur de chaleur, dans l'exemple un liquide de refroidissement d'un moteur de véhicule automobile. Ainsi, ce liquide parcourt l'échangeur de chaleur dans une direction verticale descendante.The latter comprises an inlet pipe 20 and an outlet pipe 22 (FIG. 1) serving respectively for the admission and the evacuation of a liquid passing through the heat exchanger, in the example a coolant d 'a motor vehicle engine. Thus, this liquid flows through the heat exchanger in a downward vertical direction.

Les boîtes collectrices 16 et 18 sont réalisées par moulage d'une matière plastique, par exemple du type polypropylène.The manifolds 16 and 18 are produced by molding a plastic material, for example of the polypropylene type.

La buse de ventilateur 12 comprend (figure 1) une plaque de fond 24 de forme générale rectangulaire qui est prévue pour s'étendre parallèlement et en vis-à-vis d'une grande face 26 (figure 4) du corps 14 de l'échangeur. Cette plaque de fond ménage une ouverture circulaire 28 (figure 1) destinée à loger un groupe moto-ventilateur (non représenté) comprenant un moteur électrique entraînant une hélice. Ce groupe moto-ventilateur est supporté par une structure ouverte 30 rattachée à une paroi cylindrique circulaire 32 rattachée à la plaque de fond 24. L'ensemble constitué par la plaque de fond 24, la structure ouverte 30 et la paroi cylindrique 32 est réalisé d'une seule pièce par moulage d'une matière plastique, en particulier du type polypropylène, pour constituer la buse de ventilateur dans son ensemble.The fan nozzle 12 comprises (FIG. 1) a bottom plate 24 of generally rectangular shape which is provided for extend parallel and opposite a large face 26 (Figure 4) of the body 14 of the exchanger. This bottom plate provides a circular opening 28 (FIG. 1) intended to house a motor-fan group (not shown) comprising an electric motor driving a propeller. This motor-fan unit is supported by an open structure 30 attached to a circular cylindrical wall 32 attached to the bottom plate 24. The assembly constituted by the bottom plate 24, the open structure 30 and the cylindrical wall 32 is made of 'a single piece by molding a plastic material, in particular of the polypropylene type, to constitute the fan nozzle as a whole.

Cette buse de ventilateur est prévue pour être assemblée à l'échangeur de chaleur, de manière que le groupe moto-ventilateur puisse forcer un flux d'air, par soufflage ou par aspiration, et que ce flux soit canalisé pour balayer le corps 14 de l'échangeur de chaleur et refroidir le liquide qui parcourt cet échangeur de chaleur.This fan nozzle is designed to be assembled with the heat exchanger, so that the motor-fan unit can force a flow of air, by blowing or by suction, and that this flow is channeled to sweep the body 14 of the heat exchanger and cool the liquid which flows through this heat exchanger.

Pour réaliser cet assemblage, l'invention prévoit que la buse de ventilateur 12 comprend, en partie inférieure, trois plots 34 (dont deux seulement sont visibles sur la figure 1). Ces plots s'étendent à partir d'un premier côté 36 (côté horizontal inférieur) de la buse 12 et sont dirigés verticalement vers le bas. Ces plots s'étendent ainsi sensiblement dans le plan défini par la plaque de fond 24 de la buse 12. On prévoit avantageusement un plot central encadré par deux plots latéraux, ces plots étant venus de moulage avec la buse de ventilateur 12.To achieve this assembly, the invention provides that the fan nozzle 12 comprises, in the lower part, three studs 34 (only two of which are visible in FIG. 1). These pads extend from a first side 36 (lower horizontal side) of the nozzle 12 and are directed vertically downwards. These studs thus extend substantially in the plane defined by the bottom plate 24 of the nozzle 12. A central stud is advantageously provided framed by two lateral studs, these studs having come from molding with the fan nozzle 12.

Ces trois plots 34 sont propres à s'engager dans des logements respectifs 38 formés par des étriers 40 en forme de U, venus de moulage avec la boîte collectrice 16 (figures 1 et 4). Ainsi, les plots 34 peuvent être introduits simultanément dans les logements 38 par un mouvement descendant sensiblement vertical.These three studs 34 are suitable for engaging in respective housings 38 formed by U-shaped stirrups 40, molded with the manifold 16 (Figures 1 and 4). Thus, the studs 34 can be introduced simultaneously into the housings 38 by a substantially vertical downward movement.

La buse de ventilateur 12 comprend en outre deux pattes d'encliquetage 42 (figures 1, 2 et 4) dont une seule est visible sur la figure 1. Ces deux pattes sont rattachées toutes deux à un deuxième côté 44 (côté horizontal supérieur) de la buse 12, de manière à s'étendre à l'opposé des plots 34.The fan nozzle 12 further comprises two latching tabs 42 (FIGS. 1, 2 and 4) only one of which is visible in FIG. 1. These two tabs are both attached to a second side 44 (upper horizontal side) of the nozzle 12, so as to extend opposite the studs 34.

Chacune des pattes 42 (figure 2) dépend d'un étrier 46 qui est rattaché au deuxième côté 44 de la buse de ventilateur. Plus particulièrement, cet étrier 46 comprend un pont 48 auquel se rattache la patte d'encliquetage, ainsi que deux branches parallèles 50 reliant le pont 48 au côté 44 de la buse de ventilateur. Ces branches 50 s'étendent dans le prolongement de la plaque de fond 24 de la buse. Le pont 48 constitue une plaque de forme générale rectangulaire qui s'étend dans un plan sensiblement perpendiculaire à celui de la plaque de fond 24 et qui est pourvu d'une ouverture 70.Each of the tabs 42 (FIG. 2) depends on a stirrup 46 which is attached to the second side 44 of the fan nozzle. More particularly, this stirrup 46 comprises a bridge 48 to which the latching tab is attached, as well as two parallel branches 50 connecting the bridge 48 to the side 44 of the fan nozzle. These branches 50 extend in the extension of the bottom plate 24 of the nozzle. The bridge 48 constitutes a generally rectangular plate which extends in a plane substantially perpendicular to that of the bottom plate 24 and which is provided with an opening 70.

La patte 42 est une patte élastique qui présente une extrémité 52 reliée au pont 48 et une extrémité recourbée 54 dirigée vers le côté 44 de la buse et qui s'étend parallèlement à ce côté. La patte 42 est susceptible de s'écarter élastiquement tout en se débattant à l'intérieur du logement 56 qui est délimité entre les deux branches parallèles 50.The tab 42 is an elastic tab which has an end 52 connected to the bridge 48 and a curved end 54 directed towards the side 44 of the nozzle and which extends parallel to this side. The tab 42 is capable of moving apart elastically while struggling inside the housing 56 which is delimited between the two parallel branches 50.

Cette patte 42 comporte une ouverture intérieure 58 propre à livrer passage à un ergot 60 (figures 1, 3 et 4) faisant saillie d'une face latérale 62 de la boîte collectrice 18. Chaque ergot 60 comprend une paroi en pente 64 formant rampe.This tab 42 has an internal opening 58 suitable for delivering passage to a lug 60 (Figures 1, 3 and 4) projecting from a lateral face 62 of the manifold 18. Each lug 60 comprises a sloping wall 64 forming a ramp.

A proximité de chaque ergot 60 est prévu un pion 66 (figures 1, 3 et 4) qui s'étend à partir d'une face d'extrémité 68 de la boîte collectrice 18, cette paroi d'extrémité étant sensiblement perpendiculaire à la paroi latérale 62 dont dépend l'ergot 60.Near each lug 60 is provided a pin 66 (Figures 1, 3 and 4) which extends from an end face 68 of the manifold 18, this end wall being substantially perpendicular to the wall lateral 62 on which the lug 60 depends.

Les pattes d'encliquetage 42 et les étriers correspondants 46 sont venus de moulage avec la buse de ventilateur 12. De même, les ergots 60 et les pions 66 sont venus de moulage avec la boîte collectrice 18.The latching tabs 42 and the corresponding stirrups 46 have come from molding with the fan nozzle 12. From even, the pins 60 and the pins 66 came from molding with the manifold 18.

Pour réaliser l'assemblage de la buse de ventilateur sur l'échangeur de chaleur, il suffit d'engager d'abord simultanément les trois plots 34 dans les logements correspondants 38 de la boîte collectrice 16, puis de faire pivoter la buse 12 pour rapprocher le côté 44 de la buse de la boîte collectrice supérieure 18. Ce mouvement de rapprochement s'effectue essentiellement par un mouvement pivotant ou pendulaire. Ensuite, lorsque les pions 66 sont en regard des ouvertures 70 des étriers 46, il suffit de déplacer la buse par un mouvement de translation. Ceci permet aux plots 34 de s'engager complètement dans les logements 38 et aux pions 66 de s'engager complètement dans les ouvertures 70. Pendant cette phase finale d'introduction, les pattes d'encliquetage 52 s'écartent d'abord, sous l'action des rampes 64 des ergots 60 puis se rapprochent à nouveau lorsque les ergots 60 s'engagent dans les ouvertures 58 des pattes 42. Les pattes d'encliquetage assurent alors le verrouillage de la buse et de l'échangeur qui sont maintenus immobilisés l'un par rapport à l'autre.To assemble the fan nozzle on the heat exchanger, it suffices to first engage the three studs 34 simultaneously in the corresponding housings 38 of the manifold 16, then rotate the nozzle 12 to bring it closer the side 44 of the nozzle of the upper manifold box 18. This movement of approach is effected essentially by a pivoting or pendulum movement. Then, when the pins 66 are opposite the openings 70 of the stirrups 46, it suffices to move the nozzle by a translational movement. This allows the studs 34 to fully engage in the housings 38 and the pins 66 to fully engage in the openings 70. During this final introduction phase, the latching tabs 52 first move apart, under the action of the ramps 64 of the lugs 60 and then come together again when the lugs 60 engage in the openings 58 of the lugs 42. The latching lugs then ensure the locking of the nozzle and of the exchanger which are kept immobilized relative to each other.

Il est à noter que les pattes d'encliquetage 42 ne sont pas forcément strictement identiques. Ainsi, il est avantageux que l'une de ces pattes soit propre à assurer une référence de positionnement et que l'autre soit propre à rattraper une dispersion entre la boîte collectrice 18 et la buse de ventilateur 12.It should be noted that the latching tabs 42 are not necessarily strictly identical. Thus, it is advantageous that one of these tabs is capable of ensuring a positioning reference and that the other is capable of catching up with a dispersion between the manifold 18 and the fan nozzle 12.

Bien entendu, l'invention n'est pas limitée à la forme de réalisation décrite précédemment à titre d'exemple et s'étend à d'autres variantes.Of course, the invention is not limited to the embodiment described above by way of example and extends to other variants.

Dans tous les cas, l'assemblage de la buse sur l'échangeur s'effectue de manière sûre sans qu'il soit nécessaire d'utiliser des moyens de fixation du type vis ou analogues, et des outils.In all cases, the assembly of the nozzle on the exchanger is carried out safely without the need to use fixing means of the screw or similar type, and tools.

Bien que l'invention ait été décrite en référence particulière à un échangeur de chaleur comprenant deux boîtes collectrices horizontales, elle pourrait s'appliquer à d'autres types d'échangeurs de chaleur, en particulier à boîtes collectrices verticales.Although the invention has been described with particular reference to a heat exchanger comprising two horizontal manifolds, it could be applied to other types of heat exchangers, in particular to vertical manifolds.

Claims (12)

  1. Heat exchange module comprising a fan shroud (12) assembled on a heat exchanger (10) having two header boxes (16, 18), the fan shroud (12) comprising at least two stubs (34) that extend from a first side (36) of the shroud and are able to engage in corresponding housings (38) of a first header box (16) of the heat exchanger, and also elastic snap-in tabs (42) that extend from a second side (44) of the shroud, the said snap-in tabs (42) each being fitted with an opening (58) able to let through a lug (60) projecting from a lateral face (62) of a second header box (18) of the heat exchanger, characterized in that the said snap-in tabs (42) extend in an opposite direction to the stubs (34).
  2. Module according to Claim 1, characterized in that each snap-in tab (42) hangs down from a yoke (46) that is attached to the second side (44) of the fan shroud and that makes an opening (70) through which can pass a stud (66) integral with an end wall (68) of the second header box (18) in such a way that the assembly of the fan shroud on the heat exchanger comprises an introduction phase in which the stubs (34) enter the respective housings (38) and simultaneously the studs (66) enter the openings (70) in the yokes.
  3. Module according to Claim 2, characterized in that each yoke (46) comprises a bridge (48) in which the opening (70) is formed, and to which the snap-in tab (42) is attached, and also two branches (50) connecting the bridge (48) to the second side (44) of the fan shroud, in such a way that, during the final introduction phase, the snap-in tab (42) first moves away laterally under the action of the lug (60) and then moves back in again, thereby allowing the lug to enter the opening (58) in the snap-in tab.
  4. Module according to Claim 3, characterized in that each lug (60) comprises a sloping wall (64), forming a ramp, in order to make it easier for the snap-in tab (42) to be moved away.
  5. Module according to one of Claims 1 to 4, characterized in that the fan shroud (12) comprises two spaced-apart snap-in tabs (42), one of which is able to provide a positioning reference and the other of which is able to accommodate the disparity between the second header box (18) and the fan shroud (12).
  6. Module according to one of Claims 1 to 5, characterized in that the housings (38) of the first header box (16) are each formed by a U-shaped yoke (40).
  7. Module according to one of Claims 1 to 6, characterized in that the fan shroud (12) comprises three spaced-apart stubs (34) able to engage respectively in three housings (38) of the first header box (16).
  8. Module according to one of Claims 1 to 7, characterized in that the fan shroud (12) and also its stubs (34) and its snap-in tabs (42) are produced as a single piece by moulding a plastic.
  9. Module according to one of Claims 1 to 8, characterized in that the first header box (16) and its housings (38) are produced as a single piece by moulding a plastic.
  10. Module according to one of Claims 1 to 9, characterized in that the second header box (18) and its lugs (60) are produced as a single piece by moulding a plastic.
  11. Module according to one of Claims 1 to 10, characterized in that the first header box (16) and the second header box (18) are designed to extend horizontally, at the lower part and at the upper part of the heat exchanger, respectively.
  12. Module according to one of Claims 1 to 11, characterized in that the heat exchanger (10) constitutes a radiator for cooling a motor vehicle engine.
EP99950851A 1998-10-29 1999-10-27 Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle Expired - Lifetime EP1044349B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9813586 1998-10-29
FR9813586A FR2785379B1 (en) 1998-10-29 1998-10-29 HEAT EXCHANGE MODULE COMPRISING A FAN NOZZLE AND A HEAT EXCHANGER, PARTICULARLY FOR A MOTOR VEHICLE
PCT/FR1999/002618 WO2000026599A1 (en) 1998-10-29 1999-10-27 Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle

Publications (2)

Publication Number Publication Date
EP1044349A1 EP1044349A1 (en) 2000-10-18
EP1044349B1 true EP1044349B1 (en) 2004-03-31

Family

ID=9532144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99950851A Expired - Lifetime EP1044349B1 (en) 1998-10-29 1999-10-27 Automobile heat exchanger module comprising a fan shroud and a heat exchanger, in particular for motor vehicle

Country Status (6)

Country Link
US (1) US6315034B1 (en)
EP (1) EP1044349B1 (en)
BR (1) BR9907072A (en)
DE (1) DE69916015T2 (en)
FR (1) FR2785379B1 (en)
WO (1) WO2000026599A1 (en)

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Also Published As

Publication number Publication date
DE69916015D1 (en) 2004-05-06
US6315034B1 (en) 2001-11-13
BR9907072A (en) 2000-10-17
FR2785379B1 (en) 2001-06-15
DE69916015T2 (en) 2004-08-12
FR2785379A1 (en) 2000-05-05
WO2000026599A1 (en) 2000-05-11
EP1044349A1 (en) 2000-10-18

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