• 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 aerodynamic deflector device for a motor vehicle wheel, comprising: a deflecting wall (5) movably mounted relative to a fixed frame (39) between a retracted position on the one hand and the deflecting wall (5); ) is raised and an extended position in which the deflecting wall (5) is lowered relative to the fixed frame (39). According to the invention, the baffle device further comprises an elastically deformable elastic module (13), arranged to move the baffle wall (5) towards the deployed position when the baffle wall is no longer in the deployed position.
    公开号:FR3059978A1
    申请号:FR1662345
    申请日:2016-12-13
    公开日:2018-06-15
    发明作者:Jean-Paul Herlem
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:
    (only to be used for reproduction orders) © National registration number
    059 978
    62345
    COURBEVOIE © Int Cl 8 : B 62 D 35/02 (2017.01)
    PATENT INVENTION APPLICATION
    A1
    ©) Date of filing: 13.12.16. © Applicant (s): VALEO THERMAL SYSTEMS (© Priority: Simplified joint stock company - FR. @ Inventor (s): HERLEM JEAN-PAUL. (© Date of public availability of the request: 15.06.18 Bulletin 18/24. ©) List of documents cited in the report preliminary research: Refer to end of present booklet (© References to other national documents ® Holder (s): VALEO THERMAL SYSTEMS related: Joint stock company. ©) Extension request (s): © Agent (s): VALEO THERMAL SYSTEMS.
    AERODYNAMIC DEFLECTOR DEVICE FOR A MOTOR VEHICLE WHEEL.
    FR 3 059 978 - A1
    Q /) The subject of the invention is an aerodynamic deflector device for a motor vehicle wheel, comprising:
    a deflector wall (5) mounted movable relative to a fixed frame (39) between a retracted position on the one hand where the deflector wall (5) is raised and a deployed position in which the deflector wall (5) is lowered relative to the fixed frame (39).
    According to the invention, the deflector device further comprises an elastic module (13) elastically deformable, arranged so as to move the deflector wall (5) towards the deployed position when the deflector wall is no longer in the deployed position.
    The present invention relates to an aerodynamic deflector device for a motor vehicle wheel.
    In the context of reducing fuel consumption, and consequently, reducing the emission of greenhouse gases (CO 2 ) or pollutants (No x ) by a vehicle, it is known to have an aerodynamic deflector in front the vehicle wheels.
    By controlling the air flow at the wheels and wheel arches in the bodywork, it is theoretically possible to reduce the drag of the vehicle by up to 30%, materialized by the factor C x , called the clean drag coefficient of the vehicle, in calculating the force F x of drag or fluid friction in the air that reads:
    F x = qSCx where q denotes the dynamic pressure (q = 1/2 pV 2 with p the density of the air, and V the relative speed of the air with respect to the vehicle), and S the reference surface of the vehicle.
    The aerodynamic deflectors used to control the air flow at the wheels are generally in the form of either a flexible flap or a retractable deflector made of plastic or metal. Retractable deflectors are generally in the form of a flat or curved surface, inclined towards the rear, of a width comparable to the wheel in front of which they are placed. They can selectively be moved between at least two positions, a retracted position, where a deflector surface is contained in a housing, and a deployed position where the deflector surface protrudes from the vehicle body and deflects the air flow at the wheel.
    Retractable deflectors are generally configured to adopt the retracted position at low speeds, for example less than a speed limit, for example 50 or 60 km / h (speed generally adopted in built-up areas), and the deployed position when the vehicle reaches and exceeds the speed limit.
    -2 Retractable deflectors are generally more effective than flexible flaps, which have a reduced size to avoid contact with possible obstacles on the road (stone, branch, litter), but retractable deflectors, of larger dimensions pass close to the road and can be damaged when the car is driven over such an obstacle.
    During such an event, the deflectors can be deformed, detach from their support or break. Proximity to the wheel leads to a risk of over-accident in that a deformed, loose or broken deflector or end of the deflector can damage the wheel and in particular puncture a tire while the vehicle is traveling at high speed.
    In order to at least partially solve the previously mentioned problem, the invention relates to an aerodynamic deflector device for a motor vehicle wheel, comprising:
    . a deflecting wall mounted movable relative to a fixed frame between a retracted position on the one hand where the deflecting wall is raised and a deployed position in which the deflecting wall is lowered relative to the fixed frame,. an actuator configured to move the deflecting wall between the retracted and deployed positions.
    According to the invention, the deflector device further comprises an elastically deformable elastic module, arranged so as to move the deflecting wall towards the deployed position when the deflecting wall is no longer in the deployed position.
    In other words, the deflector device further comprises an elastic module which is elastically deformable between a state of least deformation and a deformed state, and configured so that, in the deformed state of the elastic module, the deflector wall is at least partially raised, or retracted . In other words, the elastic module is able to move the deflecting wall when it goes from one state of deformation to another.
    The deflector device made prevents the deterioration of the wall
    -3 deflector in the event of an impact with an obstacle on the road. Indeed, the elastic module is able to absorb the energy of the impact while bringing the deflecting wall back to its initial deployed maximum position.
    Said control module may have one or more of the following characteristics, taken alone or in combination.
    The elastic module comprises a helical spring, or a leaf spring, or a fluid circulation jack, or an elastic band, or even a compressible or stretchable body made of elastic material.
    The elastic module is disposed in PTO with on the one hand the deflecting wall and on the other hand a deployment mechanism actuated by the actuator to move the deflecting wall between the retracted and deployed positions.
    It comprises a lower base, a rod and an upper base, and the elastic element is a helical spring deformable in compression or in stretching.
    The elastic module is engaged on the one hand with a lower end of a rack of the deployment mechanism, and on the other hand with a rear end of the deflecting wall.
    The rack has a lower bent end portion, in which is drilled, shape and dimensions corresponding to a rod of the elastic module.
    The elastic module is arranged in PTO with a movable frame carrying a deployment mechanism of the deflecting wall.
    II comprises a transverse axis around which the deflecting wall is rotated, forming a hinge between the movable frame and a fixed frame, and the elastic module is arranged around the transverse axis and engages on the one hand with the frame mobile and secondly with the fixed frame.
    The elastic module comprises a helical spring deformable in torsion and in torsion spring surrounds the transverse axis, and said helical spring has two ends, respectively engaged with the fixed frame
    -4and the movable frame.
    It comprises several elastic modules deformable in vertical translation and arranged on the edges of the mobile frame.
    The deflecting wall is movable in rotation about an axis surrounding a fixed shaft, comprising an elastic return element configured to exert a return torque on the deflecting wall, and the elastic module comprises a torsional elastic element, connected by a part to an actuating pinion set in motion by a motor and secondly to the deflecting wall, so as to exert a torque opposite to the increasing return torque with the rotation of the actuating pinion.
    The force necessary to bring the elastic module to the deformed state is less than 70% of a minimum force causing irreversible deformation or rupture of the deflecting wall.
    Other characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:
    Figure 1 shows schematically a vehicle in side view with an aerodynamic deflector device, Figure 2 shows schematically the deflector device of Figure 1 in side sectional view, Figure 3 shows the device of Figures 1 and 2 during of an impact with an obstacle, FIGS. 4a, 4b show in more detail the elastic module of the device of FIGS. 1 to 3,
    - Figure 5 shows schematically in rear view an alternative embodiment of aerodynamic deflector device according to the invention, Figure 6 shows schematically in side sectional view an alternative embodiment of aerodynamic deflector device according to the invention
    -5l'invention, Figure 7 shows schematically in side sectional view and exploded another alternative embodiment of aerodynamic deflector device according to the invention, Figures 8 and 9 schematically show in side sectional view yet another embodiment of aerodynamic deflector device with a fixed frame and a movable frame.
    In all the figures, the same references relate to the same elements.
    The embodiments described with reference to the figures are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the characteristics apply only to a single embodiment. Simple features of different embodiments can also be combined to provide other embodiments.
    In Figure 1 is shown schematically a vehicle 100 with an aerodynamic deflector device 1 according to the invention. The vehicle 100 is shown in part and in side view, centered on its front part, at the level of one of the front wheels 3.
    The vehicle 100 represented in FIG. 1 advances from right to left, the air, considered to be immobile in the terrestrial reference system, therefore flows from left to right in FIG. 1. The orientation of the air flow F makes it possible to define an “downstream” and an “upstream” respectively in the direction of travel of the air flow and in the opposite direction. Terms such as "before", "after", "in front", "behind" are defined using the direction and direction of travel of car 100 as orientation.
    The terms used below such as "high", "low", "above", "below" are defined using the local vertical, defined with the vehicle in normal traffic conditions on flat ground, oriented by the
    -6gravity.
    The transverse direction is given by the axis of rotation of the wheels 3, in a straight line.
    The aerodynamic deflector device 1 is arranged upstream of the wheel 3, under the bodywork at the front of the car 100. The aerodynamic device 1 is configured to switch between a retracted position and a deployed position. In FIG. 1, the aerodynamic deflector device 1, of which a deflector wall 5 is visible, is shown in the deployed position.
    The aerodynamic deflector device 1 is shown in more detail in FIG. 2.
    In FIG. 2, the aerodynamic deflector device 1 shown comprises a deflector wall 5, which can be set in motion around an axis 7, a pinion 9 cooperating with a rack 11 for setting in motion the deflector wall 5 and a module elastic 13.
    The deflecting wall 5 is movable in rotation about the axis 7 between a deployed position (shown in solid lines) and a retracted position (shown in dotted lines). In the deployed position, the deflector wall 5 is lowered and protrudes mainly from the body of the vehicle 100. In the retracted position, the deflector wall 5 is raised in a housing of the vehicle body 100 where it is at least partially retracted . The deflector device further comprises a fixed frame 39 serving as support, illustrated in FIG. 9, with the deflector wall 5 being movable in a retracted or deployed position relative to this fixed frame 39.
    The position of the deflecting wall 5 is identified by the angle of rotation θ between the retracted position (0 = 0) and the adopted position. In particular, when the deflecting wall 5 is in the deployed position the angle of rotation Θ is of value θ 0 maximum.
    The deflecting wall 5 has an aerodynamic profile in a ramp or semi-ogive from the axis 7, to a trailing edge located at the rear and downstream, towards the wheel 3 of the vehicle 100. The deflecting wall 5 is made of material
    -7dur, light and impact resistant, for example in molded plastic, in particular by injection. The plastic used can be supplemented with fibers, for example glass or carbon.
    The deflecting wall 5 has a U-shaped section, the vertical branches of which shorten as they approach the axis 7, and the width of which at the trailing edge corresponds to that of the wheel 3 to be covered.
    The movement of the deflecting wall 5 between the deployed and retracted positions is done by rotation of the pinion 9 by means of an actuator, in particular electric, for example by means of an electric motor, controlled by a control unit. vehicle control 100. Such a control unit generally comprises an electronic memory and calculation means, which are either dedicated or distributed in an electronic network of vehicle 100. The control unit is configured to control one or more functions of the vehicle 100, in particular by means of electronic switches such as transistors.
    In the deployed position, the deflecting wall 5 is lowered, and is located outside the housing located in the body of the vehicle 100, and is on the path of the incoming air flow F, in the absence of deflecting wall 5, in the wheel arch 3 of Figure 1. Upon entering the wheel arch, the air generates turbulence which increases the drag.
    The pinion 9 cooperates with the rack 11, which is translated vertically downwards or upwards according to the direction of rotation of the pinion 9. The rack 11 is curved, in particular with a radius of curvature corresponding to the length of the deflecting wall 5 , between the axis 7 and its rear end at which it is connected to the rack 11. The rack 11 is here in particular of rectangular section, with the long sides in the longitudinal direction of the vehicle 100, and crenellations arranged on its front side.
    Other embodiments can be obtained by placing the notches (and the pinion 9) either on the rear face or on one side of the rack 11.
    -8The lower end of the rack 11 is connected to an elastic module 13. The other end of the elastic module 13 is connected to the rear end (at the trailing edge) of the deflecting wall 5. The elastic module 13 is elastically deformable between two states: a state of least deformation, adopted in the absence of external actions, and a deformed state, adopted when an obstacle exerts a force, in particular a vertical force, on the deflecting wall 5.
    By “state of least deformation” here is meant a state adopted in normal operation in which the elastic energy of deformation is minimal. In particular, in the presence of mechanical stops, the state of least deformation may be different from the rest configuration of the elastic element considered.
    The case of a shock with an obstacle O is represented in FIG. 3. In FIG. 3, the obstacle O is of height greater than the vertical interval between the ground and the lower edge of the deflecting surface 5. Consequently, when the vehicle 100 is traveling on said obstacle O, the obstacle O exerts a force normal to the deflecting surface 5 at the point of contact. In particular, the force exerted by the obstacle O has a significant upward vertical component.
    The obstacle O can for example be a fallen branch of a tree on the road, a stone having rolled from a side, an object abandoned from a car further in traffic. Obstacles O strike the deflecting wall 5 with a speed close to or equal to that of the vehicle. However, as previously described, the deflecting wall 5 is only lowered when the speed is high enough, in particular higher than the usual speeds in built-up areas (about 50 to 60 km / h).
    Particular embodiments provide that the deployment of the deflecting wall 5 is made from a speed of 60 km / h, that is to say a speed greater than the legal speed limit in urban areas (50 km / h). The deflecting wall 5 is retracted when the speed of the vehicle becomes less than 40 km / h, speed slightly higher than the usual speeds for crossing fixed and signaled obstacles such as retarders. The gap
    Between the deployment speed and the retraction speed makes it possible, by hysteresis, to avoid repeated and untimely actuation of the deployment mechanism of the deflecting wall 5 when the speed oscillates around the deployment speed.
    A shock between an obstacle O and the deflecting wall 5 generates forces, torques and vibrations which can, in the absence of elastic module 13, lead to deformation or rupture of the deflecting wall 5.
    In FIG. 3, the obstacle O pushes the deflecting wall 5 upward, which brings the elastic module 13 to the deformed state. In the deformed state, the elastic module 13 is here compressed, the angle θ of position of the deflector wall 5 is then less than θ 0 , the deflector wall 5 is at least partially raised, so as to disappear and leave pass obstacle O.
    FIG. 4a shows in more detail an embodiment of elastic module 13 usable in the examples of FIGS. 1, 2 and 3.
    In FIG. 4a, the elastic module 13 is shown in engagement with the rear portion of the deflecting wall 5 and with the lower end of the rack 11. The elastic module 13 essentially comprises an elastic element 15, a lower base 17, a rod 19 and an upper base 21.
    The lower base 17 is integral with the rear portion of the deflecting wall 5. Said lower base 17 comprises a flattened metal piece, glued, screwed or riveted to the rear portion of the deflecting wall 5. In the example of FIG. 4a, a sole 23 of flexible rubber or plastic is implemented between the lower base 17 and the deflecting wall 5. This sole 23 makes it possible to absorb part of the vibrations of small amplitude generated by the detachment of the current lines at the trailing edge of the deflecting wall 5. These vibrations can harm the long-term possible bonding of the lower base 17 in the absence of an absorbent element.
    From the lower base 17 extends the rod 19, along the normal to the lower base 17, upwards. The rod 19 and the lower base 17 can come in one piece, and can be produced in a single common step
    -10d' Machining, for example by molding turning or milling.
    The upper end of the rod 19 is engaged with the upper base 21 which it partially crosses vertically. The upper base 21 is flat, made of metal, and pierced in its center with a bore (see FIG. 4b).
    A pin 25 is inserted transversely into the rod 19, at its upper end, above the upper base 21. The pin 25 prevents the rod 19 from detaching from the upper base 21 by retaining a portion of the rod 19 at above the upper base 21. The pin 25 can be a beta type pin, split, annular or simply cylindrical.
    The elastic element 15, here a helical spring in compression, surrounds the rod 19. When the elastic module 13 is deformed by a stress, the rod 19 is pressed into the bore of the upper base 21, and the elastic element 13 is compressed between the lower base 17 and the upper base 19 which approach.
    The elastic element 15 is selected so that the stress required to compress the elastic module 13 is greater than the stress generated by the air pressure in the range of speeds expected in normal circulation (50 to 130 km / h) over the surface of the deflecting wall 5, but less than the deformation or rupture stress of the deflecting wall 5. In particular, the deformation stress of the elastic module 13 is less than a predetermined fraction of the theoretical value of the minimum stresses, in particular forces, causing irreversible deformation or rupture of the deflecting wall 5, for example 70% of this value.
    Alternative embodiments can replace the helical spring of the elastic element 15 with a leaf spring, an elastic band, a cylinder with fluid circulation, or else a compressible or stretchable body of elastic material.
    FIG. 4b illustrates a particular embodiment of the upper base 21. FIG. 4b schematically represents the lower end
    -11from the rack 11 of the aerodynamic deflector device 1.
    The upper base 21 is here an angled end portion of the rack 11, in which a bore 27 is made, of shape and dimensions corresponding to the rod 19. The upper base 21 is thus obtained simply by drilling and then transverse folding of the end portion bottom of the rack 11. Thus, no separate part or additional fixing is required.
    FIG. 5 schematically illustrates an alternative embodiment of elastic module 13 for other embodiments of the invention. In FIG. 5, the aerodynamic deflector device 1 is seen from behind, from the location of the wheel 3. The deflector wall 5 is thus seen from its trailing edge, looking in the longitudinal direction towards the axis 7. The axis 7 of the deflecting wall 5 here surrounds a fixed shaft 29. The fixed shaft 29 is in particular made of metal, and connected at its ends to a chassis secured to the vehicle 100.
    The aerodynamic deflector device 1 comprises an elastic return element, here a return spring 31. The return spring 31 is a torsion helical spring surrounding an end portion of the fixed shaft 29. It is connected on the one hand to the chassis secured to the vehicle 100, and on the other hand to the deflecting wall 5. The return spring 31 is configured to bring the deflecting wall 5 into the retracted position in the absence of other constraints by returning to a configuration of least deformation.
    At the other end of the fixed shaft 29 is arranged the elastic module 13 which also serves for the deployment of the deflecting wall 5. The elastic module 13 here comprises an actuating pinion 33 forming with the pinion 9 a gear set in motion by the actuation of a motor 35, in particular by means of a control unit (not shown).
    The actuating pinion 33 is engaged with one end of the spring forming the elastic element 15. The elastic element 15 is here a torsional helical spring. The other end of the elastic element 15 is engaged with the deflecting wall 5.
    When the motor 35 is powered, it sets in motion the pinion 9, which in turn puts the actuating pinion 33 in rotation. The rotation of the actuating pinion 33 deforms the elastic element 15 which then exerts an increasing torque on the deflecting wall 5 in the direction causing it towards the deployed position 0 = 0 O.
    The increasing torque exerted on the deflecting wall 5 opposes the return torque exerted by the return spring 31 which initially drives and maintains the deflecting wall in the retracted position 0 = 0. When the increasing torque reaches and then exceeds the value of the torque of reminder, the deflecting wall 5 is gradually brought into the deployed position 0 = 0 O. The return spring 31 is then gradually deformed and exerts an increasing return torque with the rotation of the deflecting wall 5.
    In the deployed state 0 = 0 O of the deflecting wall 5, the position is maintained by a balance between the return torque and the increasing torque. The position adopted is then an elastic equilibrium position. A shock with an obstacle O spreading the deflecting wall 5 from said equilibrium position causes an imbalance between the restoring torque and the increasing torque in the direction bringing back the deflecting wall 5 towards the equilibrium position 0 = 0 O.
    The presence of the elastic module 13 reduces the risk of damage to the aerodynamic deflector device 1 during impacts with an obstacle O. This makes it possible to extend the expected life of the product, and reduces the risks during movement in vehicle 100.
    FIG. 6 shows a more general example of elastic module 13, adapted to various mechanisms of aerodynamic deflector devices 1. In the particular embodiment of FIG. 6, the deflector device 1 comprises a pinion 9 and a rack 11 similar to the modes of realization of Figures 2 and 3.
    The embodiment of aerodynamic device 1 of FIG. 6 comprises in particular a movable frame 37. The movable frame 37 is of rectangular shape, open at its center. The movable frame 37 forms a support for the elements of the aerodynamic deflector device 1. The axis 7 is in particular
    -13related and articulated to the movable frame 37. The pinion 9 is also integral with the movable frame 37 with respect to which the motor drives it in rotation.
    Such movable frames 37 are used as a support to obtain a modular aerodynamic deflector device 1, which can be assembled and easily transported as a block between the various vehicle assembly workshops 100.
    The frame 37 is intended to cover the edge of an opening in the bodywork or the underbody of the vehicle 100, upstream of the wheel arch 3 of the vehicle 100. The frame 37 rests on elastic modules 13, located at each of the corners of the frame 37. The elastic modules 13 are here deformable by vertical translation of the frame 37, and therefore of the aerodynamic deflector device 1 attached to the frame 37.
    Other embodiments are obtained by using a different number of elastic modules 13, for example three, one in the middle of one side of the movable frame 37, and two others at the ends of the opposite side (mounting in a triangle).
    The elastic modules 13 are in the state of least deformation when they are compressed, which keeps the frame 37 and the aerodynamic deflector device 1 in the low position, corresponding to the deployed state of the deflector wall 5.
    Another directly derived embodiment provides for the use of extension springs, arranged under the movable frame 37.
    The elastic modules 13 each comprise a rod 19, which is surrounded in this embodiment by an elastic element 15, here a helical spring deformable in stretching, disposed between the movable frame 37 and a lower base 17 of the elastic modules 13. The rod 19 goes through a hole in the movable frame 37 and guides the movable frame 37 in vertical translation.
    When the deflector wall 5 comes into contact with the obstacle O, the forces exerted on the deflector wall 5 translate the assembly of the aerodynamic deflector module 1 upwards by lifting the movable frame 37, this
    -14 which stretches the elastic modules 13. Once the obstacle O has passed, the elastic modules 13 exert a restoring force on the movable frame 37 which returns it to the low position of maximum deployment of the deflecting wall 5.
    In FIG. 7, the aerodynamic deflector module 1, produced according to a different mode, again comprises a movable frame 37, here movable in rotation about the axis 7 of the deflector wall 5.
    The movable frame 37 is here engaged at its front end with the axis 7, and at its rear end with at least one elastic module 13, preferably two, one at each transverse end of the rear side of the movable frame 37.
    The elastic module 13 visible in FIG. 7 comprises a curved rod 19 which guides the movable frame 37 in rotation. The elastic element 13 is here a helical spring deformable in compression, surrounding the rod 19, disposed between the movable frame 37 and an upper base of the elastic module
    13.
    The lower base 17 of the elastic module 13 on which the movable frame 37 abuts in the absence of an obstacle O forms a stop and may include a disc of vibration-absorbing material, for example a rubber or soft plastic sole.
    In Figures 8 and 9 is shown another embodiment of aerodynamic deflector module 1, which further comprises a fixed frame 39. The fixed frame 39 is rectangular, with a rectangular opening in its center (see Figure 9). It has holes 41 in its corners, which are used to attach the fixed frame 39 to the bottom of the vehicle 100 by screwing or riveting.
    The fixed frame 39 also includes a hinge 43 which interacts with the axis 7. The axis 7 is surrounded by helical springs deformable in torsion forming the elastic modules 13. The coil springs 13 each have two ends, respectively integral with the frame mobile 37 and fixed frame 39.
    The axis 7 is also engaged with the movable frame 37 via hinges 45,
    -15so that the movable frame 37 is movable in rotation about the axis 7. The coil springs 13 are in their state of least deformation when the movable frame 37 is arranged parallel to the fixed frame 39. The movable frame 37 carries again the components of the aerodynamic deflector module
    1 such as the pinion 9, the rack 11 and the deflecting wall 5.
    When the deflecting wall 5 encounters an obstacle O (FIG. 8), said obstacle O exerts a vertical force upwards which drives the deflecting wall 5 upwards. The deflecting wall 5 is erased by driving the movable frame 37 in rotation, its rear end being driven upwards.
    When the obstacle O has passed, the helical springs 13 exert a torque on the movable frame 37 which returns it to the lowered position, parallel to the fixed frame 39.
    Such aerodynamic deflector modules 1 with a fixed frame 39 and a mobile frame 37 carrying the deflector wall 5 and its actuation mechanism 9, 11, can be produced with different actuation mechanisms 9, 11 for example with a longitudinal axis and a deflecting wall 5 movable in rotation about this axis.
    The invention makes it possible to obtain aerodynamic deflector modules 1 whose deflecting wall 5 disappears during an impact with an obstacle O before deformation or rupture of said deflecting wall 5.
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Aerodynamic deflector device for a motor vehicle wheel, comprising:
    . a deflector wall (5) mounted movable relative to a fixed frame (39) between a retracted position on the one hand where the deflector wall (5) is raised and a deployed position in which the deflector wall (5) is lowered relative to the fixed frame (39), characterized in that it further comprises an elastic module (13) elastically deformable, arranged so as to move the deflecting wall (5) towards the deployed position when the deflecting wall is no longer in the deployed position.
    [2" id="c-fr-0002]
    2. Deflector device according to claim 1, characterized in that the elastic module (13) comprises a helical spring, or a spring, or a cylinder with fluid circulation, or an elastic band, or even a compressible or stretchable body of material elastic.
    [3" id="c-fr-0003]
    3. Deflector device according to one of claims 1 or 2, characterized in that the elastic module (13) is arranged in PTO with on the one hand the deflector wall (5) and on the other hand a deployment mechanism actuated by the actuator (9) for moving the deflecting wall (5) between the retracted and deployed positions.
    [4" id="c-fr-0004]
    4. Deflector device according to claim 3, characterized in that it comprises a lower base (17), a rod (19) and an upper base (21), and in that the elastic element (15) is a spring helical deformable in compression or stretching.
    [5" id="c-fr-0005]
    5. Deflector device according to claim 3 or 4, characterized in that the elastic module (13) is engaged on the one hand with a lower end of a rack (11) of the deployment mechanism, and on the other hand with a rear end of the deflecting wall (5).
    [6" id="c-fr-0006]
    6. Device according to claim 5, characterized in that the rack
    -17 (11) comprises a lower bent end portion (21), in which a bore (27) is formed, of shape and dimensions corresponding to a rod (19) of the elastic module (13).
    [7" id="c-fr-0007]
    7. Deflector device according to one of claims 1 or 2, characterized in that the elastic module (13) is arranged in PTO with a movable frame (37) carrying a deployment mechanism of the deflector wall (5).
    [8" id="c-fr-0008]
    8. Deflector device according to claim 7, characterized in that it comprises a transverse axis (7) around which the deflector wall (5) is rotated, forming a hinge between the movable frame (37) and a fixed frame ( 39), and in that the elastic module (13) is arranged around the transverse axis (7) and engages on the one hand with the movable frame (37) and on the other hand with the fixed frame (39 ).
    [9" id="c-fr-0009]
    9. Deflector device according to claim 7, characterized in that the elastic module (13) comprises a helical spring deformable in torsion and in that the torsion spring surrounds the transverse axis (7), and in that said helical spring has two ends, respectively engaged with the fixed frame (39) and the movable frame (37).
    [10" id="c-fr-0010]
    10. Deflector device according to claim 7, characterized in that it comprises several elastic modules (13) deformable in vertical translation and arranged on the edges of the movable frame (37).
    [11" id="c-fr-0011]
    11. Deflector device according to claim 1 or 2, in which the deflector wall (5) is rotatable around an axis (7) surrounding a fixed shaft (29), comprising an elastic return element (31) configured for exert a return torque on the deflecting wall (5), characterized in that the elastic module (13) comprises an elastic element (15) in torsion, connected on the one hand to an actuating pinion (33) set in motion by a motor (35) and on the other hand to the deflecting wall (5), so as to exert a torque opposite to the increasing return torque with the rotation of the actuating pinion (33).
    1/4
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    同族专利:
    公开号 | 公开日
    US10953934B2|2021-03-23|
    US20200010128A1|2020-01-09|
    CN110431065B|2021-12-31|
    CN110431065A|2019-11-08|
    EP3554927B1|2021-01-06|
    WO2018109311A1|2018-06-21|
    EP3554927A1|2019-10-23|
    FR3059978B1|2019-04-19|
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    FR3059978B1|2016-12-13|2019-04-19|Valeo Systemes Thermiques|AERODYNAMIC DEFLECTOR DEVICE FOR A MOTOR VEHICLE WHEEL|
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    DE102018123487A1|2018-09-24|2020-03-26|Röchling Automotive SE & Co. KG|Actively relocatable wheel spoiler with overload protection thanks to the buckling element|
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    FR3089483A1|2018-12-07|2020-06-12|Valeo Systemes Thermiques|Deflector device for a motor vehicle wheel|
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    法律状态:
    2018-01-02| PLFP| Fee payment|Year of fee payment: 2 |
    2018-06-15| PLSC| Publication of the preliminary search report|Effective date: 20180615 |
    2019-12-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-12-31| PLFP| Fee payment|Year of fee payment: 5 |
    2021-12-31| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1662345A|FR3059978B1|2016-12-13|2016-12-13|AERODYNAMIC DEFLECTOR DEVICE FOR A MOTOR VEHICLE WHEEL|
    FR1662345|2016-12-13|FR1662345A| FR3059978B1|2016-12-13|2016-12-13|AERODYNAMIC DEFLECTOR DEVICE FOR A MOTOR VEHICLE WHEEL|
    PCT/FR2017/053375| WO2018109311A1|2016-12-13|2017-12-04|Aerodynamic deflector device for motor vehicle wheel|
    CN201780084226.6A| CN110431065B|2016-12-13|2017-12-04|Aerodynamic deflection device for a motor vehicle wheel|
    US16/469,347| US10953934B2|2016-12-13|2017-12-04|Aerodynamic deflector device for motor vehicle wheel|
    EP17816981.9A| EP3554927B1|2016-12-13|2017-12-04|Aerodynamic deflector device for motor vehicle wheel|
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