• 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 invention relates to an air guide (1) comprising a duct (7) configured to guide a flow of air entering a motor vehicle to a heat exchanger (12, 13), the air guide (1). further comprising a protective grid (20) for protecting said heat exchanger. According to the invention the conduit (7) and the protective grid (20) are made in one piece. The invention also relates to a front-end module for a motor vehicle comprising such an air guide (1).
    公开号:FR3076496A1
    申请号:FR1850059
    申请日:2018-01-05
    公开日:2019-07-12
    发明作者:Dinh-Luyen Nguyen；Daniel Pereira
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    The invention relates to an air guide and a front panel module for a motor vehicle.
    The front sides of motor vehicles are generally composed of a main air inlet or two air inlets, called upper track and lower track, separated by a bumper beam. Behind this bumper beam are generally placed the heat exchangers of the motor vehicle, such as that used for air conditioning the passenger compartment. A duct or channels guide the air, thereby channeling the air flow to the heat exchangers, thereby improving their thermal performance.
    In the automotive field, the heat exchangers placed on the front face can be the victim of projection of debris or stones which can damage or even pierce the flat tubes, or plates, inside which circulates a heat transfer fluid.
    In order to protect these heat exchangers, it is known to place in front of them a protection device capable of absorbing these shocks. However, the fixing of these protection devices is generally carried out by clips which must be fitted individually and manually, which is long and tedious and not compatible with rapid mass production.
    One of the aims of the present invention is to propose an air guide and an air guide module, less expensive to manufacture and simpler to assemble.
    The present invention relates to an air guide comprising a duct configured to direct a flow of air entering a motor vehicle towards a heat exchanger, the air guide further comprising a protective grid to protect said heat exchanger. According to the invention, the conduit and the protective grid are made in a single piece.
    Thus the air guide comprising a duct and a one-piece protective grid, namely made in one piece, can be produced in a single mold which simplifies the manufacturing process. By a single piece, it is understood that the conduit and the protective grid are made in a single piece so as to form a continuity of material so that it is not possible to dissociate from one another without causing irreversible damage to the air guide. A conduit according to the invention here corresponds to a sheath, or to any element having walls, making it possible to guide the flow of the air flow entering the vehicle, here, in the direction of a heat exchanger. Other embodiments propose that: the protective grid corresponds to a frame with a grid pierced with holes to let the air flow pass; - the grid comprises longitudinal bars parallel to each other and also comprises spacers connecting said longitudinal bars, said longitudinal bars being arranged to come opposite the flat tubes, or plates, of the heat exchanger; the protective grid and the conduit are made of the same material, or of the same material; - the protective grid and the conduit are made of thermoplastic elastomer; - the protective grid and the conduit are made of thermoplastic elastomer with glass fibers and / or carbon; - The protective grid and the duct are made of thermoplastic elastomer with glass fibers and / or carbon, the fiber content in the protective grid being different from the fiber content in the duct; - the protective grid and the conduit are made of two separate materials, or two separate materials; - The air guide further comprises a set of flaps mounted to rotate in the duct. The invention also relates to a front panel module for a motor vehicle comprising an air guide as described above and a heat exchanger. Other characteristics and advantages of the invention will appear on reading the description which follows. This is purely illustrative and should be read with reference to the accompanying drawings in which: - Figure 1 illustrates a front panel module comprising an air guide according to the invention in a schematic side view and in vertical section; - Figure 2 illustrates an air guide according to the invention in a perspective view, - Figure 3 shows the protective grid of the air guide in a perspective view.
    In the description, the terms “upstream” and “downstream” are defined in relation to the flow of the air flow entering the vehicle.
    The air guide 1 is mounted at the front of a motor vehicle 2, between a support structure 3 of the front face of the vehicle (“carrier” or “bolster” in English), generally linked to the wings and the side members of the vehicle, and the shield of the vehicle in which the radiator grille is mounted 4. Depending on the type of vehicle, the air guide 1 can be alternately mounted on a structural nozzle on the front face, the structural nozzle supporting the heat exchange device 5 of the vehicle. According to an exemplary embodiment, the air guide may itself include a support frame configured to hold the heat exchange device 5. The heat exchange device 5 comprises at least one heat exchanger 12,13 for example a condenser 12 and / or a radiator 13 and a motor-fan unit 14.
    The air guide 1 comprises at least one duct 7 which connects to the heat exchange device 5 of the motor vehicle 2 on the one hand and to at least one air inlet 10,11 arranged at the level of the grille 4 of the vehicle automobile 2 on the other hand. The duct 7 is thus configured to direct a flow of air entering the motor vehicle 2 towards the heat exchange device 5.
    The front panel module of the motor vehicle 2 as illustrated here is composed of two air inlets 10, 11, called high track and low track, separated by a bumper beam 16. The air inlets 10, 11 are arranged here in the upper and lower part of the front panel module along a vertical axis, once the front panel module mounted in the vehicle. The air inlets 10, 11, respectively called high track and low track, are provided at the front of the motor vehicle 2, behind the grilles of the grille 4. The invention is not limited to the number of entry air, the front panel module can include one, two or more air inlets.
    The upstream portions 8, 9 of the superimposed conduit 7, here extend in parallel and form a transverse housing 15 in which is received a protective beam 16 of the motor vehicle 2.
    According to an exemplary embodiment, the air guide 1 comprises at least one additional air supply duct 17 connected to an air inlet 10 of the motor vehicle 2, to guide the air from the air inlet 10 to an additional device of the motor vehicle 2, such as a projector or an additional air blower. Thus, the air flow from the air inlet 10 is not only directed to the heat exchange device 5 but can also be used for the cooling of other devices.
    In the embodiment shown in FIG. 1, the additional air supply duct 17 communicates with the air inlet 10 upstream of a set of flaps 19 (commonly called AGS from the English word “Active Grill” Shutter ”)
    The flaps are for example formed by lamellae pivotally pivoted transversely so as to form a louver. The inclination of the flaps can be controlled between a vertical closed position, when the air guide 1 is mounted in the vehicle, blocking the passage of air and several intermediate positions to a horizontal open position, when the air guide 1 is mounted in the vehicle, where a maximum air flow can circulate. The set of flaps 19 can be mounted in the air guide 1 by means of a flap support 18 of the air guide 1, said flap support 18 comprising bearings for accommodating the shafts of rotation of the flaps.
    The controlled shutters are for example arranged upstream of the heat exchange device 5, which in particular makes it possible to close them to accelerate the rise in temperature of the heat exchangers 12, 13 in the heating phase by reducing the consumption of the vehicle 2.
    The air guide 1 may comprise a single flap support 18 which extends over the entire interior surface of the duct 7, in this case the flap support 18 is arranged downstream of the air inlets 10, 11 and the bumper beam 16 as illustrated in FIG. 1. According to an embodiment not illustrated, the air guide 1 can comprise two sets of flaps 19, each being arranged at an air inlet 10 , 11 specific. For example, a first set of flaps 19, or flap support 18, is assigned to said upper track and the second set of flaps 19, or flap support 18, is assigned to said low track, the two sets of flaps 19, or shutter supports 18, being separated by a bumper beam 16. The set of shutters 19 can be mounted to the air guide 1 beforehand, to form a set that is easier to assemble in the vehicle 2.
    This takes advantage of the presence of piloted shutters, arranged between the air inlet (s) 10, 11 of the vehicle 2 and the heat exchange device 5 to also control the orientation of all or part of the air flow, according to needs, depending on the inclination of the flaps, towards the additional device (s).
    The air guide 1 according to the invention further comprises a protective grid 20 as illustrated in FIG. 1. The protective grid 20 according to the invention, as shown in FIG. 4 according to one embodiment, comprises longitudinal bars 22 parallel to each other and also includes spacers 24 connecting said longitudinal bars 22. In other words, the protective grid 20 corresponds to a frame with an assembly of bars defining recesses, or deflections, in the interior surface of the frame so allow air flow to flow while retaining debris. In other words, the protective grid 20 comprises a grid, or a set of bars which divide a surface into a contiguous rectangle, each rectangle corresponding to a recess. The protective grid 20 may further include elastic arms 26 allowing fitting by elastic deformation or clipping on the heat exchanger 12,13. According to one embodiment, the air guide 1 can comprise a housing for accommodating the heat exchangers 12, 13, in this case it is not necessary to arrange elastic arms on the protective grid 20.
    The heat exchange device 5 comprises heat exchangers 12, 13 which each comprise flat tubes or plates, parallel to each other, in which a heat-transfer fluid circulates, for example a refrigerant or glycol water. Between these flat tubes, or plates, are arranged fins connecting two successive flat tubes, or plates. The air flow circulates between said flat tubes, or plates, passing through said fins. The longitudinal bars 22 are arranged so as to cover the sides of said flat tubes, or plates, in order to protect them effectively, or in other words the longitudinal bars 22 are arranged so as to come into contact with the flat tubes, or plates. In other words, the longitudinal bars 22 are spaced from each other by a pitch of a height substantially equal to that of the fins or of the tube / plate pitch.
    The air guide 1 according to the invention is preferably placed upstream of the radiator 13 either by being upstream from the condenser 12 and from the radiator 13, or by being between the two heat exchangers 12,13, or by being upstream of the radiator 13 for the heat exchange devices 5 not comprising a condenser 12.
    The protective grid 20 is preferably made of plastic material, in particular of elastomeric material or more precisely of thermoplastic elastomer and is perforated so as to allow the flow of air flow through heat exchangers 12,13. The protective grid 20 is for example formed of EPDM (ethylene-propylene-diene monomer) material, SEBS (polystyrene-b-poly (ethylene-butylene) -b-polystyrene), PA-6 (Polyamide 6) charged or not glass fibers and / or carbon, PP (polypropylene) loaded with EPDM, in organosheet, or PP (polypropylene) loaded with glass fibers and / or carbon.
    It is further provided that the duct 7 is made of plastic material, in particular of elastomeric or thermoplastic elastomeric material. Line 7 is for example formed from EPDM (ethylene-propylene-diene monomer), SEBS (polystyrene-b-poly (ethylene-butylene) -b-polystyrene), PA-6 (Polyamide 6) material, whether or not loaded with fiber fibers. glass and / or carbon, PP (polypropylene) loaded with EPDM, in organosheet, or PP (polypropylene) loaded with glass fibers and / or carbon.
    The air guide 1, comprising the duct 7 and the protective grid 20, is made in a single piece. In other words, the air guide 1 is produced in a single piece so as to form a continuity of material between the duct 7 and the protective grid 20 so that it is not possible to dissociate one of the other without causing irreversible damage to the air guide 1. Sealing is thus improved since it is not necessary to seal several connected parts. The workforce can be reduced due to the reduction in the number of parts to be tightly assembled, which reduces production costs.
    Thanks to their specific shapes and / or because of the properties of their materials, the duct 7 has a certain flexibility giving the air guide 1 the ability to deform. This deformation capacity allows the air guide 1 to absorb the energy of low speed shocks which may occur at the front of the vehicle 2, such as parking shocks, in particular making it possible to limit damage to the components of the vehicle 2 located at the rear of the air guide 1, such as the heat exchange device 5. The air guide thus provides an additional function to the channeling of air by participating in the absorption of shocks.
    In addition, the flexible conduit 7 makes it possible to absorb the manufacturing tolerances during the assembly of the air guide in the motor vehicle 2. In fact, the adjustment of the clearances during docking on the shield can be achieved without constraints, by a slight deformation of the duct 7. The required tolerances are then no longer as low as those required for air guides 1 of the prior art which had to be assembled with minimal play. The air guides 1 are thus easier to assemble and less expensive to manufacture.
    The protective grid 20 and the conduit 7 can therefore be made of the same material such as a plastic material, in particular an elastomeric material such as for example formed from EPDM (ethylene-propylene-diene monomer), SEBS (polystyrene-b -poly (ethylene-butylene) -b-polystyrene), PA-6 (Polyamide 6) loaded or not with glass fibers and / or carbon, PP (polypropylene) loaded with EPDM, in organosheet, or PP (polypropylene) loaded with fibers of glass and / or carbon.
    The air guide 1 is for example obtained by bi-injection in the same mold. It is thus in one piece while being made up of different materials to provide in particular a more flexible material for the duct 7 and more rigid for the protective grid 20.
    For example, the protective grid 20 and the conduit 7 can be made of a thermoplastic elastomer with glass fibers and / or carbon of different content. In other words, the fiber content in the protective grid 20 is different from the fiber content in the duct 7. For example, the air guide 1 according to the invention could comprise a duct 7 made of PP or PA loaded with 15% glass fibers to be more flexible while the protective grid 20 is made of PP or PA loaded with 30% glass fibers to have better resistance to debris.
    It is also conceivable to produce the protective grid 20 and the duct 7 in two separate materials, such as, for example, steel and thermoplastic elastomer respectively. The invention also relates to a module for the front panel of a motor vehicle comprising an air guide 1 as described above and at least one heat exchanger 12, 13 as described above.
    It should be understood, however, that these exemplary embodiments are given by way of illustration of the subject of the invention. The invention is not limited to these embodiments described above and provided only by way of example. It encompasses various modifications, alternative forms and other variants that a person skilled in the art may envisage within the framework of the present invention and in particular any combination of the various embodiments described above.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    claims
    1. Air guide (1) comprising a duct (7) configured to direct an air flow entering a motor vehicle towards a heat exchanger (12, 13), the air guide (1) further comprising a protective grid (20) for protecting said heat exchanger, characterized in that the duct (7) and the protective grid (20) are produced in a single piece.
    [2" id="c-fr-0002]
    2. Air guide (1) according to claim 1, in which the protective grid (20) corresponds to a frame with a grid pierced with holes arranged to let the air flow pass.
    [3" id="c-fr-0003]
    3. Air guide (1) according to claim 2, wherein the grid comprises longitudinal bars (22) parallel to each other and also comprises spacers (24) connecting said longitudinal bars (22), said longitudinal bars (22) being arranged to come opposite the flat tubes or plates of the heat exchanger (12,13).
    [4" id="c-fr-0004]
    4. Air guide (1) according to one of the preceding claims, in which the protective grid (20) and the duct (7) are made of the same material.
    [5" id="c-fr-0005]
    5. Air guide according to claim 4, wherein the protective grid (20) and the conduit (7) are made of thermoplastic elastomer.
    [6" id="c-fr-0006]
    6. Air guide (1) according to claim 5, wherein the protective grid (20) and the duct (7) are made of thermoplastic elastomer with glass fibers and / or carbon.
    [7" id="c-fr-0007]
    7. Air guide (1) according to claim 6, in which the protective grid and the duct (7) are made of thermoplastic elastomer with glass fibers and / or carbon, the fiber content in the protective grid. (20) being different from the fiber content in the duct (7).
    [8" id="c-fr-0008]
    8. Air guide (1) according to one of claims 1 to 3, wherein the protective grid (20) and the conduit (7) are made of two separate materials.
    [9" id="c-fr-0009]
    9. Air guide (1) according to one of the preceding claims, in which the air guide (1) further comprises a set of flaps (19) mounted to rotate in the duct (7).
    [10" id="c-fr-0010]
    10. Front panel module for a motor vehicle comprising an air guide (1) according to one of claims 1 to 9 and at least one heat exchanger (12,13).
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3076496B1|2020-05-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2441659A1|1974-08-30|1976-03-11|Daimler Benz Ag|Two part car radiator grill - has components linked by stays but leaving gap able to pass more air|
    US4169501A|1976-12-02|1979-10-02|Kabushiki Kaisha Komatsu Seisakusho|Airflow regulating apparatus for radiator|
    GB2131150A|1982-10-08|1984-06-13|Stephen Hugh Phillips|Vehicle radiator grille with shuttered operation|
    DE3916920A1|1989-05-24|1990-11-29|Audi Ag|Protective grill for vehicle radiator - has two meshes spaced apart and offset w.r.t. each other with distance between them being greater than mesh width|
    US20070080009A1|2005-10-12|2007-04-12|Kowalski Jerome E|A/C condenser damage protection device|
    EP2594420A1|2010-08-31|2013-05-22|Honda Motor Co., Ltd.|Failure determination device for shutter device for vehicle|
    DE102015107949A1|2015-05-20|2016-11-24|Volkswagen Aktiengesellschaft|motor vehicle|FR3100483A1|2019-09-10|2021-03-12|Valeo Systemes Thermiques|TANGENTIAL TURBOMACHINE MOTOR VEHICLE COOLING MODULE|
    FR3112103A1|2020-07-03|2022-01-07|Renault S.A.S|vehicle with a front facade with a multifunctional structural part|
    法律状态:
    2019-01-30| PLFP| Fee payment|Year of fee payment: 2 |
    2019-07-12| PLSC| Search report ready|Effective date: 20190712 |
    2020-01-31| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-28| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1850059A|FR3076496B1|2018-01-05|2018-01-05|AIR GUIDE FOR FRONT PANEL MODULE FOR MOTOR VEHICLE|
    FR1850059|2018-01-05|FR1850059A| FR3076496B1|2018-01-05|2018-01-05|AIR GUIDE FOR FRONT PANEL MODULE FOR MOTOR VEHICLE|
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