• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a deformable air guide adapted to be positioned between at least one front air intake of a motor vehicle and a front end module of said motor vehicle, said deformable air guide comprising a body having a first end, adapted to be connected to said at least one air inlet, and a second end, adapted to be connected to said front face module, said deformable air guide being adapted to deform upon impact from a first configuration to a second configuration; the distance between the first and second ends of said body in said second configuration being reduced with respect to the distance between the first and second ends of said body in said first configuration.
    公开号:FR3040661A1
    申请号:FR1558188
    申请日:2015-09-03
    公开日:2017-03-10
    发明作者:Jean-Paul Herlem；Frederic Vacca
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    DEFORMABLE AIR GUIDE FOR MOTOR VEHICLE Field of the invention
    The present invention relates to the field of air guides positioned between the front air intake of a motor vehicle and the front-end module of said motor vehicle, in particular the field of deformable air guides when an impact at the front of a motor vehicle.
    State of the art
    In general, a motor vehicle comprises an air intake in the form of an opening located on the front face of said motor vehicle. The incoming air is used to allow a heat exchange between it and the cooling system of the motor vehicle, said cooling system being located near the front face of said vehicle. More specifically, the air entering the engine compartment of the motor vehicle is guided to the cooling system of said motor vehicle to allow a heat exchange between the incoming air and the heat exchanger of the cooling system. It is important to minimize the loss of air flow between the air inlet and the heat exchanger. Indeed, any flow of air penetrating inside the vehicle, and escaping to the engine compartment before having contributed to the heat exchange inside the motor vehicle, has a negative influence on the coefficient of resistance to air of said motor vehicle.
    In the prior art, it is known to use solutions comprising devices for connecting an air guide to a portion of the front face structure of a motor vehicle. These devices are intended to prevent a possible leakage of air for the cooling system, out of the air guide. However, the presence of the air guide generates disadvantages during a frontal impact on the motor vehicle. Indeed, the air guide is relatively rigid. Therefore, during a frontal impact, the air guide is unable to absorb the energy generated by the impact. The energy is indeed directly transferred to the various components located outside the air guide and forming the cooling system, which components (and in particular the heat exchanger) can then undergo considerable damage during the cooling. impact.
    Given the problem described above, it is therefore essential to develop technical solutions to obtain optimum protection of the components forming the cooling system, such as the heat exchanger, during a frontal impact. on the motor vehicle.
    Presentation of the invention
    Therefore, the present invention particularly aims at the development of a deformable air guide capable of connecting elements of the cooling system to the air intake of a motor vehicle, and using a guide adapted to avoid, during a frontal impact, the energy transfer generated during said frontal impact to said elements of said cooling system.
    A first object of the present invention relates to a deformable air guide, adapted to be positioned between at least one front air intake of a motor vehicle and a support of a front end module of said motor vehicle, said deformable air guide comprising a body having a first end adapted to contact the support of the front-end module, and a second end opposite the first end. According to the invention, said deformable air guide is adapted to deform during an impact, from a first configuration to a second configuration; the distance between the first and second ends of said body in said second configuration being reduced with respect to the distance between the first and second ends of said body in said first configuration.
    According to one embodiment of the invention, said deformable air guide comprises a ductile material, for example consisting essentially of a ductile material adapted to pass from said first configuration to said second configuration by plastic deformation, absorbing a determined amount of kinetic energy.
    According to one embodiment of the invention, the ductile material comprises a closed-cell synthetic foam.
    According to one embodiment of the invention, said closed-cell synthetic foam is selected from an expanded polypropylene foam (EPP) or a polyurethane foam (PU).
    According to one embodiment of the invention, the deformable air guide is in one-piece form.
    According to one embodiment of the invention, said body comprises an assembly of at least two modules connected together to form said deformable air guide, and said at least two modules are interconnected by means of a frangible connection.
    According to one embodiment of the invention, said frangible connection comprises a hinge film (called "hinge film" in English).
    According to one embodiment of the invention, said at least two modules are of essentially conical (or conical) or essentially truncated conical shape, advantageously of essentially truncated conical (or truncated conical) shape.
    According to one embodiment of the invention, said at least two modules are essentially tubular (or tubular).
    According to a second aspect, the invention relates to a front-end module comprising the deformable air guide according to the invention.
    Brief description of the drawings
    The objects, objects and features of the present invention - as well as its advantages - will become more clearly apparent on reading the following description, with reference to the drawings, in which: FIG. 1 shows a three-dimensional view of a first embodiment of the deformable air guide according to the invention, said deformable air guide being connected to the support of the front-end module of a motor vehicle, Figure 2 is a schematic view, in section and from above, of part of the deformable air guide according to FIG. 1 as well as its connection to the support of the front-end module of the motor vehicle, FIG. 3 also shows a diagrammatic view, in section and from above, of part of the guide of deformable air according to a second embodiment of the invention, before impact, as well as its connection to the support of the front-end module of the motor vehicle, and - Figure 4 represents, schematically, the guide deformable air according to a second embodiment of the invention, illustrated in Figure 3, after impact.
    Detailed Description of the Embodiments
    The purpose of the following description is to explain the invention in a sufficiently clear and complete manner, in particular by means of examples, but should not be considered as limiting the scope of protection to the embodiments and examples. presented below.
    The deformable air guide according to the invention is adapted to be implanted within a motor vehicle and form an air guide for connecting at least one air inlet of said motor vehicle to the cooling system of said vehicle; said cooling system comprising at least one heat exchanger.
    A first embodiment of the deformable air guide 10, connected to the support 15 of the front face module 1 of a motor vehicle, is shown in three dimensions in FIG.
    A front-end module, intended to be installed within a motor vehicle, is a structural element adapted to receive a plurality of devices necessary for the operation of the motor vehicle. Said front-end module comprises, for example, projectors and elements forming part of the cooling system of said motor vehicle, such as a heat exchanger. After its production, a front-end module can be assembled directly on the motor vehicle, in particular using elements of the chassis of said motor vehicle, such as longitudinal members.
    In general, the front-end module of a motor vehicle comprises a support for receiving said plurality of devices necessary for the proper functioning of the motor vehicle. The support of the front-end module consists of different pieces fastened together which, in principle, form an element essentially in the form of a frame comprising two uprights and an upper cross member and a lower cross member. In the automotive industry, the support of the front-end module of a motor vehicle is often referred to as the "bulkhead".
    The top cross member of the support 15 of the front face module 1 is visible in FIG. 1. The support 15 of the front face module 1 is, among other things, used to fix elements of the cooling system such as a condenser and a radiator. . In addition, the support 15 of the front face module 1 comprises two sets of flaps 16, 17. Each of the two sets of flaps 16, 17 of said assembly is movable, which allows oscillation from a closed position to an open position, said oscillation for adjusting at will the amount of air flowing to the cooling system of the motor vehicle.
    The embodiment according to FIG. 1 shows the front-end module 1 of a motor vehicle, said front-face module 1 being provided with an upper orifice comprising a first set of flaps 16 and a lower orifice comprising a second set of shutters 17. The upper and lower openings are separated by a beam 18 whose ends are visible in Figure 1. In order to allow the circulation of a predetermined amount of air within the engine compartment, a motor vehicle is provided with at least one air inlet positioned at the front face of said motor vehicle. As a general rule, the front face of a motor vehicle comprises an upper air inlet and a lower air inlet, the two inlets being separated by the bumper of said motor vehicle.
    In order to optimize the coefficient of resistance to air of a motor vehicle, it is important that the amount of air entering the engine compartment corresponds to the amount of air adequate for optimal operation of said motor vehicle. Any flow of air penetrating into the engine compartment and not contributing to the optimal operation of said motor vehicle proves not only superfluous but, much more troublesome, influences, in a negative way, the coefficient of resistance to air said motor vehicle.
    For the reason explained above, it is known to connect the above at least one air inlet (generally the upper air inlet and the lower air inlet) to the elements of the cooling system present within the module front face 1 of said motor vehicle by means of an air duct called "air guide". The presence of such an air guide makes it possible to drive and direct the air optimally, from the air inlet to the various elements of the cooling system of the motor vehicle.
    The deformable air guide 10 according to the invention, making it possible to form an air guide between at least one air inlet of a motor vehicle and the support 15 of a front face module 1 of said motor vehicle, is adapted to deform in case of an impact involving the front face of said motor vehicle, in particular during a frontal impact or collision (e). This deformation allows said deformable air guide 10 to absorb a certain amount of kinetic energy during an impact suffered by the front face of the motor vehicle. The deformation of the deformable air guide 10, and thus the absorption of the kinetic energy, prevents said kinetic energy resulting from an impact or a collision (in particular frontal (e)) from being transferred from the front face of the motor vehicle to the elements constituting the front-end module 1 of said motor vehicle. In other words, the deformable air guide according to the invention, positioned between at least one air intake of a motor vehicle and the support 15 of the front face module 1 of said motor vehicle, protects said front module before 1, in particular heat exchangers, in the event of an impact on the front face of the motor vehicle, in particular during a collision or a frontal impact (e). After an impact, the deformable deformable air guide 10 can be replaced by a new deformable air guide 10 without the various elements forming the front face module 1 requiring neither repair nor replacement. This represents a considerable asset.
    The deformable air guide 10 according to the first embodiment of the present invention is composed of a ductile material, adapted to undergo a plastic deformation during an impact at the front face of the motor vehicle (particularly when 'a frontal shock). More specifically, the deformable air guide 10 of ductile material is adapted to deform, by plastic deformation, a first configuration, shown in Figure 1, to a second configuration. In this second configuration, the distance separating the two ends of the deformable air guide 10 is reduced compared to the distance separating the two ends of the deformable air guide 10 in the first configuration. The ends of the deformable air guide 10 are defined: firstly by the end of the deformable air guide 10 adapted to be in contact with the support 15 of the front face module, and secondly by the end of the deformable air guide 10 opposite the first end, and in the direction of the air inlet of the front face. The end of the deformable air guide 10 may for example rest on the support 15 directly or indirectly, or be introduced into the support 15, in a mode not shown.
    According to a preferred embodiment of the invention, the deformable air guide 10 comprises a closed cell synthetic foam type material. A synthetic foam of this nature can be made of expanded polypropylene (EPP), polyurethane (PU) or any other suitable synthetic material.
    It should be noted that the deformable air guide 10 according to FIG. 1 is capable of deforming in order to absorb a predetermined quantity of energy and thus to protect the various components of the front face module 1 of a motor vehicle during an impact on the front of a motor vehicle. It may furthermore be noted that said deformable air guide 10 according to FIG. 1 is in one-piece form, namely constituted of a single piece. In the event of an impact at the deformable air guide 10, it is able to deform without losing its integrity, that is to say that no fragmentation occurs. This characteristic is important with respect to the criterion of "coin loss" imposed by the automobile industry. For obvious safety issues, it is indeed essential to cause the least debris possible on the roadway in case of impact on a motor vehicle.
    FIG. 2 represents a view, in section, of a part of the deformable air guide 10 according to FIG. 1. This FIG. 2 makes it possible to show the connection of said deformable air guide 10 to the support 15 of the front face module 1 of the motor vehicle.
    As illustrated in FIG. 2, the deformable air guide 10 is essentially in the form of a funnel. Elements forming part of the cooling system of the motor vehicle, such as, for example, a radiator 20 and a condenser 21, are connected to the support 15 of the front-end module 1. The two sets of flaps 16, 17 are also connected to the support 15 of the front panel module 15 upstream of said radiator 20 and condenser 21. The two sets of flaps 16, 17, and the connection of the deformable air guide 10 on the support 15 of the front panel module 1, are adapted to allow a plastic deformation of said deformable air guide 10 to the impact, thus avoiding any contact between said deformable air guide 10 and the set of flaps 16, 17. In case of impact at the front face of a motor vehicle, thereby avoiding damage to all devices 16, 17, 20, 21, forming part of the front-end module of the motor vehicle.
    FIG. 3 represents a second embodiment of the deformable air guide 10 according to the invention. In the cross-sectional view of FIG. 3, a first end 32 in contact with the support 15 of the front-face module 1 of a motor vehicle and a second end 31, opposite the first end 32, the two ends, can be distinguished. 31,32 forming part of the wall of a deformable air guide 30. As shown in Figure 3, elements such as a radiator 20, a condenser 21 and two sets of flaps 16, 17 are connected to the support 15 of the front panel module 1 of said motor vehicle.
    The deformable air guide 30 according to Figure 3 has the following feature: an air guide is obtained by interlocking modules 33, 34. More precisely, and as shown schematically in Figure 3, one of the two ends of the module 34 is nested in the adjoining end of the module 33, the latter having sufficient dimensions to allow this interlocking. Preferably, the different ends of said modules 33, 34 are connected by means of "fuse" zones, or in other words, frangible zones. These fusible zones promote the deformation of said deformable air guide 30, a first configuration, as shown in Figure 3, to a second configuration, as shown in Figure 4. As shown in Figure 4, in case of impact, the different fuse zones allow deformation of the deformable air guide 30, said deformation resulting in a reduction in the distance between the ends 31, 32, with respect to the distance between the ends 31, 32 in the configuration " before impact ", shown in Figure 3.
    In the embodiment shown in Figures 3 and 4, the modules 33, 34 are in substantially truncated conical form (or in truncated conical form). The air guide obtained by interlocking the different modules 33, 34 into each other is, for its part, essentially in the form of a funnel.
    As indicated above, according to a particular embodiment, said modules may be of substantially tubular (or tubular) shape.
    After impact, although the fusible zones are broken, the different modules 33, 34 remain in contact with each other. Maintaining this contact between said modules 33, 34 makes it possible to prevent the falling of parts disconnected on the roadway during an impact on a motor vehicle. This means that the deformable air guide 30 produces little or no debris when it is impacted.
    FIGS. 1, 2, 3 and 4 show two embodiments of a deformable air guide according to the invention, positioned between at least one front air intake of a motor vehicle and a support 15 of the module. front face 1 of said motor vehicle. The deformable air guide 10, 30, as described in the present description, has the capacity to deform when it undergoes an impact, from a first configuration to a second configuration, the distance between the ends according to the present invention. second configuration being reduced with respect to the distance between the ends according to the first configuration. This makes it possible to protect the various elements 16, 17, 20, 21 forming the front-end module, such as the components of the cooling system of a motor vehicle.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    claims
    1. Deformable air guide (10,30), adapted to be positioned between at least one front air intake of a motor vehicle and a support (15) of the front panel module (1) of said motor vehicle , said deformable air guide (10, 30) comprising a body having a first end, adapted to contact the support (15) of the front face module, and a second end opposite the first end, characterized in that said deformable air guide (10, 30) is adapted to deform upon impact from a first configuration to a second configuration; the distance between the first and second ends of said body in said second configuration being reduced with respect to the distance between the first and second ends of said body in said first configuration.
    [2" id="c-fr-0002]
    2. deformable air guide (10, 30) according to claim 1, said deformable air guide (10, 30) comprising a ductile material, for example consisting essentially of a ductile material, adapted to allow to pass from said first configuration to said second configuration, absorbing a determined amount of kinetic energy.
    [3" id="c-fr-0003]
    The deformable air guide (10) of claim 2, wherein the ductile material comprises a closed cell synthetic foam.
    [4" id="c-fr-0004]
    The deformable air guide (10) according to claim 3, wherein said closed-cell synthetic foam is selected from expanded polypropylene foam (EPP) or polyurethane foam (PU).
    [5" id="c-fr-0005]
    5. deformable air guide (10) according to one of claims 2 to 4, wherein the deformable air guide (10) is in one-piece form.
    [6" id="c-fr-0006]
    The deformable air guide (30) according to claim 1, wherein said body comprises an assembly of at least two modules (33, 34) connected together to form said deformable air guide, and wherein said at least one two modules are interconnected by means of a frangible connection.
    [7" id="c-fr-0007]
    The deformable air guide (30) of claim 6, wherein said frangible connection comprises a film hinge.
    [8" id="c-fr-0008]
    The deformable air guide (30) of claim 6 or 7, wherein said at least two modules (33,34) are substantially conical or substantially truncated conical in shape.
    [9" id="c-fr-0009]
    The deformable air guide (30) of claim 6 or 7, wherein said at least two modules (33,34) are substantially tubular in shape.
    [10" id="c-fr-0010]
    10. Front face module (1) comprising the deformable air guide (10, 30) according to one of claims 1 to 9.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3344486A1|2018-07-11|
    FR3040661B1|2018-10-26|
    WO2017036869A1|2017-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102008039806A1|2008-08-19|2010-02-25|Decoma Gmbh|Arrangement for guiding air flow in direction, and for ventilation system, has multiple sealing components, where each sealing component has frame section and sealing lip|
    DE102009027475A1|2009-03-13|2010-09-16|Volkswagen Ag|Air guiding device for guiding air to cooling pack of car, has two air guidance parts such as closure part and hopper that form channel for guiding air to cooling pack, where pack is shielded before returning of heated air|
    FR3014812A1|2013-12-13|2015-06-19|Renault Sa|FRONT PART OF A MOTOR VEHICLE COMPRISING A MODULAR AIR GUIDE IN FRONT OF A TECHNICAL FRONT PANEL|
    WO2016016549A1|2014-08-01|2016-02-04|Compagnie Plastic Omnium|Motor vehicle front surface air guide comprising mechanical weakness areas|
    FR3083750B1|2018-07-10|2020-06-19|Renault S.A.S|AIR GUIDING DEVICE FOR A MOTOR VEHICLE COMPRISING TWO SEPARATE PARTS OF EXPANDED POLYMER MATERIAL|
    FR3083751B1|2018-07-10|2020-06-12|Renault S.A.S|AIR GUIDE IN EXPANDED POLYMER MATERIAL HAVING HOLDING ELEMENTS ON AN EXTREME FRONT CROSSING|
    FR3083756B1|2018-07-10|2020-12-04|Renault Sas|AIR GUIDE FOR AUTOMOTIVE VEHICLES MADE OF ONE PIECE OF EXPANDED POLYMERIC MATERIAL AND INCLUDING AT LEAST ONE FRANGIBLE ZONE|
    FR3093763B1|2019-03-15|2021-04-02|Valeo Systemes Thermiques|SACRIFICIAL ZONE COOLING MODULE FOR ELECTRIC MOTOR VEHICLES|
    FR3097808B1|2019-06-25|2021-06-04|Valeo Systemes Thermiques|Sealing device for a vehicle with a slide connection|
    法律状态:
    2016-09-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-10| PLSC| Search report ready|Effective date: 20170310 |
    2017-09-29| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-28| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-30| PLFP| Fee payment|Year of fee payment: 5 |
    2021-06-11| ST| Notification of lapse|Effective date: 20210506 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1558188A|FR3040661B1|2015-09-03|2015-09-03|FRONT PANEL MODULE COMPRISING A DEFORMABLE AIR GUIDE FOR A MOTOR VEHICLE|
    FR1558188|2015-09-03|FR1558188A| FR3040661B1|2015-09-03|2015-09-03|FRONT PANEL MODULE COMPRISING A DEFORMABLE AIR GUIDE FOR A MOTOR VEHICLE|
    PCT/EP2016/069928| WO2017036869A1|2015-09-03|2016-08-24|Deformable air guide for a motor vehicle|
    EP16756689.2A| EP3344486A1|2015-09-03|2016-08-24|Deformable air guide for a motor vehicle|
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