• 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 a deflector device for a motor vehicle wheel, comprising a base (11) and a deflecting wall (15) configured to be mounted movably relative to the base (11) between: an extended position and a retracted position. According to the invention, the deflector device comprises an articulated mechanism (21) for displacing the deflecting wall (15) comprising at least one connecting rod (221, 222) connected to the deflecting wall (15), so as to allow the displacement of said baffle wall (15) between the retracted and deployed positions through said at least one link (221, 222).
    公开号:FR3048671A1
    申请号:FR1651969
    申请日:2016-03-09
    公开日:2017-09-15
    发明作者:Jean-Paul Herlem；Sylvain Gerber
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    The invention relates to a deflector device for a motor vehicle wheel. This is generally referred to as an aerodynamic deflector. The invention also relates to a motor vehicle equipped with such a deflector device.
    A constant concern in the automotive field is the fuel consumption and the environmental impact of the vehicle, particularly through its greenhouse gas emissions such as CO2 or toxic gases such as NOx. To reduce fuel consumption, car manufacturers are trying to make more efficient propulsion engines on the one hand, and on the other hand to reduce the consumption of vehicle equipment.
    An important factor in the consumption of a vehicle is determined by the wind catch or aerodynamics of the vehicle.
    Indeed, the aerodynamics of a motor vehicle is an important feature because it influences in particular the fuel consumption (and therefore the pollution) as well as the performance including acceleration of said vehicle.
    In particular, the drag or aerodynamic resistance to advancement plays a decisive role, especially at higher speeds, because the drag varies depending on the square of the speed of movement of the vehicle.
    According to the models used in fluid mechanics, it is possible, for example, to quantify the drag force exerted on a motor vehicle with the aid of a reference surface S. As a first approximation, the dither strength, denoted Fx, is equal to q * S * Cx, where q is the dynamic pressure (q = ½ p * V2, where p denotes the density of the air and V is the speed of the vehicle relative to the air), Cx denotes a coefficient vehicle-specific screen.
    The reference surface used for a motor vehicle usually corresponds to its front surface. It is therefore understood that to reduce the screen, it is necessary to aim to reduce the reference surface. The analysis of aerodynamic phenomena in more detail has also brought to light the determining role of vehicle wheels.
    Indeed, the wheels can increase the aerodynamic resistance considerably, because they generate turbulences when the air flow strikes the wheel in rotation. At high speeds it has been shown that the front wheels can contribute up to 30% of the reference surface.
    Indeed, when a motor vehicle moves, the air in which it evolves is deflected according to the profile of the vehicle. The air thus deviated notably reaches the wheel well. The wheel arch is a cavity in the body of the vehicle, and surrounding a wheel (this corresponds to the wing of the vehicle). The wheel arch fulfills several functions. 11 limits (by retaining them) splashes of water, mud or other materials on which the wheel is likely to circulate and that it may be caused to expel during its rotation. The air reaching the wheel well circulates in particular in the narrow space between the wheel and the wheel arch. It is known that on this occasion, turbulence is formed around the wheel turns and create an aerodynamic brake.
    According to a known solution, a fixed deflector is placed in front of a motor vehicle wheel. Such a fixed deflector, which can take the form of a flap (often about 5cm in height), reduces turbulence in the wheel well. However, such a fixed deflector may be damaged during obstacle clearance (sidewalk, speed bump type, etc.).
    To solve this problem, it has been envisaged to equip the baffle device with an actuator to move a baffle wall mounted to move on the vehicle between a retracted position in which the baffle wall is raised, and secondly an extended position in which the baffle wall is lowered and placed upstream of the vehicle wheel.
    The present invention aims to provide an alternative for the actuation of the baffle wall. To this end, the invention relates to a deflector device for a motor vehicle wheel, comprising a base and a deflecting wall configured to be mounted movably relative to the base between: an extended position in which the deflecting wall is lowered relative to the base and a retracted position in which the baffle wall is raised relative to the base.
    According to the invention, the deflector device comprises an articulated mechanism for moving the deflecting wall comprising at least one connecting rod connected to the deflecting wall, so as to allow the displacement of said deflecting wall between the retracted and deployed positions via said at least one link.
    The articulated link mechanism (s) is a simple system allowing when actuated, in particular by an electric motor, to move the baffle wall between the retracted and deployed positions and vice versa.
    The baffle device may further include one or more of the following features taken alone or in combination: the baffle wall is configured to be pivotally driven through said at least one link; the deflector device comprises an actuator configured to control the articulated mechanism, so as to allow the displacement of said baffle wall between the retracted and deployed positions via said at least one link under the action of the actuator; the articulated mechanism comprises at least two links articulated together; the articulated mechanism comprises at least a first connecting rod and a second connecting rod articulated to each other, the first connecting rod being engaged with the actuator and the second connecting rod being hingedly attached to the base, so that the first connecting rod, when it is driven by the actuator, transmitting a movement to the second link; the base comprises at least one fixed arm having a point of articulation for said at least one second link; the articulated mechanism comprises at least two sets of links, each set of links comprising at least two links articulated together. This makes it possible to stabilize the deflecting wall in a good position and to balance the pressure exerted on the latter; the articulated mechanism comprises two first links and at least one transverse bar connecting the two first links; the actuator is engaged with said at least one transverse bar, so as to drive the first links through said at least one transverse bar; the first two links are arranged in parallel, and the transverse bar is arranged substantially perpendicular to the first two rods; the deflector device comprises two transverse bars connecting the two first links; the actuator is fixed on the baffle wall; the baffle wall comprises a central portion and two opposite side portions on either side of the central portion; the central portion of the baffle wall is intended to be disposed upstream of the wheel in the path of an air flow towards the wheel when the baffle wall is in the deployed position in the mounted state of the baffle device on the motor vehicle; the deflector device comprises a first support and a second support respectively arranged on a lateral part of the deflecting wall, the first support being configured to carry the actuator and a first end of a transverse bar between the two first links and the second support being configured to carry the second end of said crossbar; the base has a substantially longitudinal shape and is configured to be mounted on the motor vehicle with its longitudinal axis substantially parallel to the longitudinal axis of the vehicle, and the baffle wall is pivotally mounted on the base by means of a pivot axis substantially parallel to the transverse axis of the base. The invention also relates to a deflector device, for example as defined above, further comprising an elastic return means arranged to exert a restoring force on the baffle wall to maintain it in the deployed position, and such that in the event of impact opposing the restoring force, the deflecting wall is moved from the deployed position to the retracted position.
    With such an elastic return means, the deflector device, and in particular its baffle wall, can be erased during an impact with an object foreign to the vehicle while the baffle wall was in the deployed position thus avoiding damaging it during shock.
    The deflector device comprises a hinge system for example such as the articulated link mechanism (s) described above.
    The baffle device may further include one or more of the following features taken alone or in combination: the resilient biasing means is configured to return the baffle wall to the deployed position when the force opposing the return force ceases. The elastic return means thus allows the deflecting wall to resume its position after the shock; the elastic return means is fixed on the base configured to be mounted on said vehicle and on which the baffle wall is movably mounted between the retracted and deployed positions; the elastic return means has at least one free end disposed in elastic support against the deflecting wall; the elastic return means is formed as a leaf spring having at least one flexible blade; said at least one flexible blade is arranged to exert a restoring force at the side portions of the baffle wall; the elastic return means comprises a base from which said at least one flexible blade extends; the base has a longitudinal shape and the base of the elastic return means extends in the direction of the width of the base. The invention also relates to a front-end module for a motor vehicle, characterized in that it comprises at least one deflector device as defined above. In the mounted state on the motor vehicle and in the deployed position, the baffle wall is lowered and extends upstream of the wheel of said vehicle so as to deflect a flow of air intended to flow towards the wheel . In the mounted state on the motor vehicle and in the retracted position, the baffle wall is raised to release the passage for the flow of the air flow. Other features and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and non-limiting example, and the appended drawings in which: FIG. 1a shows a side diagram of a deflector device mounted on a motor vehicle, in the retracted position, Figure Ib shows a side diagram of the deflector device mounted on a motor vehicle, in the deployed position, Figure 2a is a first side perspective view of the deflector device of Figures la and Ib in the retracted position, Figure 2b is a second side perspective view of the deflector device of Figure 2a in the retracted position, Figure 3a is a first side perspective view of the deflector device of Figures 1a and 1b in a position intermediate between the retracted position and the deployed position, Figure 3b is a second side perspective view 3b in the intermediate position, FIG. 4a is a first side perspective view of the deflector device of FIGS. 1a and 1b in the deployed position, FIG. 4b is a second side perspective view of the deflector device of FIG. 4a in the deployed position, Figure 5 is an exploded view of the deflector device of Figures 1a to 4b, and Figure 6 is a very schematic perspective view of a deflector device provided with an elastic return means.
    In the description, identical elements are identified by the same reference numbers.
    The following achievements 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 features apply only to a single embodiment. Simple features of different embodiments may also be combined or interchanged to provide other embodiments.
    In the description, it is possible to index certain elements, such as for example first element or second element. In this case, it is a simple indexing to differentiate and name close but not identical elements. This indexing does not imply a priority of one element with respect to another and it is easy to interchange such denominations without departing from the scope of the present description. This indexing does not imply an order in time either.
    In the present description, the term "upstream" means that one element is placed before another relative to the direction of flow of the air flow. Conversely, "downstream" means that one element is placed after another relative to the direction of flow of the air flow. By upper and lower, high and low, or raised and lowered, reference is made to the arrangement of the elements in the figures, which generally corresponds to the arrangement of the elements in the assembled state in a motor vehicle.
    An LTH mark in a figure indicates the longitudinal directions L, transverse T and height H. The direction L corresponds to a horizontal direction in the direction of the length of the vehicle, the direction T corresponds to a horizontal direction in the direction of the width of the vehicle and the direction H corresponds to a vertical direction in the direction of the height of the vehicle.
    Figures la and Ib show a simplified schematic side of a front portion 1 of a motor vehicle, showing in particular a wheel 3, a wheel well 5 and a deflector device 7 for wheel according to the invention equipping the vehicle.
    In the diagrams of FIGS. 1a and 1b, the direction of progression of the vehicle in the forward direction is illustrated by the arrow 9, and the flow of air impacting the vehicle and in particular the wheel 3 in the opposite direction is illustrated by the arrows 10.
    The deflector device 7 is intended to be arranged so as to be able to deflect the air flow 10 impacting the vehicle and in particular the wheel 3, as illustrated in FIG. 1b, and to prevent this air flow 10 from rushing in the wheel arch 5 which may form an aerodynamic brake. Such a deflector device 7 is also called aerodynamic deflector device 7 insofar as it contributes to improving the aerodynamics of the vehicle on which it is mounted.
    The aerodynamic deflector device 7 advantageously comprises a base 11. In order to allow the arrangement of the deflector device 7 on the motor vehicle, the base 11 is configured to be mounted on the motor vehicle, for example fixed to the chassis of the vehicle upstream of the vehicle. wheel 3 and near the wheel arch 5. The base 11 is generally received in a housing on the frame provided for this purpose.
    The base 11 may have a generally longitudinal general shape and is configured to be mounted on the vehicle with its longitudinal axis substantially parallel to the longitudinal axis L of the vehicle.
    According to the illustrated embodiment, the base 11 is designed as a rectangular frame configured to be attached to the vehicle, for example by screwing or by staples or other means of attachment. We also talk about platinum 11.
    In addition, the aerodynamic deflector device 7 comprises a deflecting wall 15.
    In this example, the baffle wall 15 has a central portion 15 A and two opposite side portions 15B extending on either side of the central portion 15A.
    The central portion 15A is intended to be disposed, in the mounted state of the baffle device 7 on the vehicle and in the deployed position of the baffle wall 15, upstream of the wheel 3 in the flow path of the air flow 10. .
    According to the illustrated example, the lateral parts 15B define, for example, sectors of a circle. The central portion 15A connects in this example the arcuate ends of the side portions 15B.
    To prevent, for example, sludge or other dirt from accumulating inside the volume defined by the baffle wall 15, a closing portion 15C (see FIG. 1b) advantageously providing a connection between the lower edges of the central portions 15A is advantageously provided. and lateral 15B. The deflecting wall 15 with the central portion 15A, the side portions 15B and the closure wall 15C then define a body only open on one side, here on the upper side, and having the general shape of a shovel, or more precisely a excavator bucket form.
    The deflecting wall 15 is, according to the illustrated example, mounted movable relative to the base 11, here in the form of a frame, between on the one hand a retracted position (see FIG. 1a) and on the other hand a lowered or extended position ( see Figure Ib). The deflecting wall 15 is intended to be mounted movably on the motor vehicle between the retracted position (see Figure la) and the lowered or deployed position (see Figure ib).
    In the retracted position, the baffle wall 15 is raised and does not interfere with the flow of air 10 impacting the wheel 5 in the mounted state on the motor vehicle. For this purpose, the deflecting wall 15 can be raised in a housing located upstream of the wheel arch 5. This retracted position is generally adopted for low speeds, for example less than 50km / h. Indeed, for small speeds, the effect of the deflecting wall 15 is small, especially with respect to the reference surface. In addition, obstacles such as sidewalks, speed bumps, Berlin cushion, or other generally at speeds below about 50km / h are crossed. By taking the retracted position at these low speeds, the deflecting wall 15 is protected against breakage.
    In the lowered or deployed position shown in Figure Ib, and in the mounted state on the motor vehicle, the baffle wall 15 is placed in the path of the air flow 10 upstream of the wheel 3 of the vehicle. According to the embodiment described, in this deployed position, the deflecting wall 15 is at least partially below the pivot axis 17 of the wheel 3. In this way, the air flow 10 is deflected in such a way that not being able to rush into the wheel well 5. The air flow 10 is in particular deflected downwards towards the ground or the road, as is shown schematically by the arrow 16A in FIG. 1b. air 10 can also be deflected on the sides.
    This avoids the creation of turbulence in the wheel well 5 which would contribute to the significant increase of the reference surface. In this case, it is also referred to as an active position of the deflecting wall 15. Thus, the drag force can be contained at more acceptable values.
    The deflecting wall 15 is better visible in FIGS. 2a to 4b.
    In these figures 2a to 4b, a trihedron xyz is shown. The longitudinal, transverse and vertical terminology with reference to this xyz trihedron will be adopted without limitation. The x axis indicates the longitudinal direction corresponding to the main extension direction of the lateral parts 15B of the deflecting wall 15. The y axis indicates the transverse direction with respect to the two lateral parts 15B of the deflecting wall 15 and the axis z corresponds to a vertical direction in the direction of the height of the deflecting wall 15. According to the particular example illustrated, the longitudinal direction of the base 11 coincides with the x axis, and the transverse direction along the width of the base 11 coincides with the y axis. According to the arrangement of the deflecting wall 7 on the vehicle, the directions x, y, z may respectively correspond to the longitudinal directions L, transverse T and height H of the reference defined with respect to the vehicle 1 in FIGS. 1a and 1b, as this is the case according to the illustrated embodiment.
    Figures 2a to 4b show different positions of the deflecting wall 15, namely, a retracted position (Figures 2a and 2b), an intermediate position (Figures 3a and 3b) and an extended position (Figures 4a and 4b). For example, the baffle wall 15 is rotatably mounted. More specifically, the baffle wall 15 is here pivotally connected to the base 11 via a pivot axis 18 (Figures la and Ib). As indicated by the arrow 20 in FIG. 1a, the deflecting wall 15 can thus rotate about this pivot axis 18.
    According to the illustrated example, the pivot axis 18 is arranged in the transverse direction y of the deflecting wall 15. The pivot axis 18 is further oriented substantially perpendicular to the longitudinal axis x of the deflecting wall 15. To the mounted state of the aerodynamic deflector device 7 on the vehicle, the pivot axis 18 may be substantially parallel to the transverse axis T of the vehicle. The pivot axis 18 is for example a physical axis.
    In this example, the baffle wall 15 is pivotally connected to the base 11 by these side portions 15B. To do this, the free ends of the lateral parts 15B are hinged about the pivot axis 18. Π are here the ends of the side portions 15B opposite the arc.
    For this purpose, the deflecting wall 15 has pivot connection means 151, visible in FIG. 5, between the ends of the lateral parts 15B and the pivot axis 18. The pivot connection means 151 present in this example a complementary open form of the shape of the pivot axis 18. In a complementary manner, the base 11 has recesses 111 at which the pivot connection means 151 are arranged when the deflector wall 15 is mounted on the base 11.
    According to an advantageous embodiment, in order to move the deflecting wall 15 between the retracted (FIGS. 1a, 2a, 2b) and deployed positions (FIGS. 1b, 4a, 4b), the aerodynamic deflector device 7 further comprises an actuator 19, namely here an electric actuator. The actuator 19 may be an electric motor, also called a micromotor, and comprises an output member, for example a rotary member.
    In order to be able to effect this movement, the deflector device 7 preferably comprises an articulated mechanism 21 for displacing the deflecting wall 15 which is better visible in FIGS. 2b, 3b and 4b. This articulated mechanism 21 is configured to be controlled by the actuator 19. The articulated mechanism 21 is therefore connected firstly to the actuator 19 and secondly to the baffle wall 15. The actuator 19 is configured to move here, rotate (see arrow 20 in FIG. 1a), the deflecting wall 15 from its retracted position to the deployed position, and vice versa, via this articulated mechanism 21.
    The articulated mechanism 21 comprises at least one connecting rod 221, 222 connected to the deflecting wall 15, through which the deflecting wall 15 can be displaced, here pivotally, between the retracted positions (FIGS. 1a, 2a, 2b) and deployed (Figures Ib, 4a, 4b) through one or more intermediate positions (Figs 3a, 3b).
    Referring to Figures 2b, 3b, 4b and 5, the articulated mechanism 21 preferably comprises at least two links 221, 222 hinged together.
    In this example, at least one first link 221 is connected to the actuator 19, or more precisely to an output member of the actuator 19, and at least one second link 222 is articulated on a first rod 221 associated. As a result, the actuator 19 makes it possible to set in motion the first link 221 which, in turn, makes it possible to set the second link 222 in motion. By way of particular and nonlimiting example, the first link 221 has a shape stem substantially straight. This first link 221 is in this example articulated at both ends.
    The second link 222 here has a substantially curved shape. This second link 222 is hinged in this example only at its end connected to the first connecting rod 221 associated.
    According to the illustrated example, the articulated mechanism 21 comprises at least two sets of rods 22a, 22b, each set of rods 22a, 22b comprising at least two rods 221 and 222. Thus, according to the illustrated example, the articulated mechanism 21 comprises a first set 22a comprising a first connecting rod 221 and a second connecting rod 222 hinged together, and a second set 22b comprising a first connecting rod 221 and a second connecting rod 222 hinged together.
    The two sets 22a, 22b of links articulated and connected to the deflecting wall 15, make it possible to stabilize the latter in a good position and to balance the pressure exerted on the deflecting wall 15, during the deployment of the deflecting wall 15.
    Advantageously, the first two links 221 can be connected to each other, for example by means of at least one bar 23. This is a transverse bar 23, extending substantially parallel to the transverse axis y of the deflecting wall 15. In the illustrated example, the first two links 221 are arranged in parallel, and the transverse bar 23 is arranged substantially perpendicular to the first two rods 221.
    For a good mechanical strength, one can provide at least two transverse bars 23 connecting the first two links 221. The two bars 23 may extend substantially parallel. In this example, a transverse bar 23, called lower bar, allows the connection between the first links 221 and the actuator 19. The lower crossbar 23 extends along an axis A schematized in Figure 2b substantially parallel to the axis transversal y. In addition, at least one other transverse bar 23, referred to as the upper bar, is arranged near the points of articulation between the first links 221 and the second links 222.
    The shape of the or bars 23, here transverse, connecting between the first rods 221 can be adapted as needed.
    The transverse bars 23 are for example made in one piece with the first links 221. The set of two first links 221 and two transverse bars 23 form a lever which is intended to be set in motion by the actuator 19, and to transmit in turn a movement to the second links 222.
    In addition according to the embodiment described, it is the (or) first link (s) 221 which is (are) connected (s) to the deflector wall 15 so as to transmit a movement.
    To do this, according to the particular embodiment illustrated, the deflector device 7 comprises at least a first support 25 and a second support 27 (see FIG. 5) respectively fixed on the deflector wall 15 and provided to each carry a respective end of a transverse bar 23, here the lower transverse bar, connecting the two first links 221. In other words, the first support 25 carries a first end of a transverse bar 23, here the lower transverse bar, and the second support 27 carries the second end of this same crossbar 23, here the lower crossbar 23.
    In particular, each support 25, 27 can be arranged and fixed on a respective lateral part 15B of the deflecting wall 15. More specifically, the supports 25, 27 are here arranged on the inside of the lateral parts 15B, that is to say say on the side of the open volume defined by the side portions 15B, the central portion 15A and the closing portion 15C of the baffle wall 15. The two supports 25, 27 are therefore arranged vis-a-vis the side portions 15B.
    The first support 25 is further configured to carry the actuator 19. The actuator 19 is thus fixed on the deflector wall 15. The output member of the actuator 19 is furthermore engaged with the first end of the bar transverse 23, for example inferior, received in the same support 25 as the actuator 19. Thus, the actuator 19 drives the first links 221 or more generally the lever by the lower transverse bar 23.
    Furthermore, the or each second link 222 articulated on a first link 221 associated is further hingedly attached to the base 11 which is fixed thereto. For this purpose, the base 11 comprises at least one fixed arm 112, two fixed arms 112 in the case of two sets of links 22a, 22b, and each arm 112 has a pivot point 113 for a second connecting rod 222 associated.
    Furthermore, in this example, the second rods 222 and the associated fixed arms 112 are such that in the retracted position (see Figure 2b), the second rods 222 are respectively arranged in the alignment of the associated fixed arm 112.
    Now described more precisely the movements of the articulated mechanism 21 as described above when the actuator 19 is started, whether the deployment or retraction, in other words the return to the retracted position, the deflecting wall 15. The output member of the actuator 19 drives the first link or rods 221 pivotally about the axis A shown schematically in Figure 2b through the crossbar 23, said lower bar. The pivoting movement of the or each first link 221 is transmitted to a second associated link 222 and to the deflecting wall 15. The second link or links 222 are in turn pivoted about a transverse axis B, schematized in FIGS. 2b and 3b, substantially parallel to the transverse axis y of the deflecting wall 15, or in other words around the point of articulation 113 of the fixed arm 112 on which the second connecting rod 222 is hinged. And, the deflecting wall 15, driven by the first link or rods 221, pivots in turn around the pivot axis 18 parallel to the transverse axis y.
    Furthermore, referring again to Figures 1a and 1b, the deflector device 7 may further comprise a control unit 24 connected to the actuator 19 and configured to activate or start the actuator 19 when the baffle wall 15 must be moved in the extended position or vice versa in the retracted position. The control unit 24 comprises for example an electronic circuit such as a microprocessor or a microcontroller receiving a speed information from a speed sensor, and ordering the deployment or retraction of the baffle wall 15 accordingly.
    According to one possible implementation, a hysteresis mechanism is provided in order to avoid threshold effects. Thus, it is possible to provide that the control unit 24 triggers the deployment of the deflecting wall 15 as soon as the speed exceeds a given threshold (for example 50km / h), but that the retraction of the deflector wall 15 is triggered only when the speed drops below a threshold below the aforementioned threshold (for example a threshold of 40km / h). Thus, the circuit avoids inadvertently trigger alternation of deployment and retraction when the vehicle is traveling at a speed close to the initial threshold and passes permanently on one side and the other of this threshold.
    According to yet another variant, the control unit 24 can also receive geolocation data associated with information on the driving situation. For example, the control unit 24 may be configured to inhibit any deployment of the deflecting wall 15 in agglomeration where the speed is limited. Indeed, it is in agglomeration that there is the most risk of having to cross obstacles that may damage the deflecting wall 15.
    It is thus clear that the aerodynamic deflector device 7 which is simple and easy to implement makes it possible to improve the aerodynamic drag of the vehicle and therefore in particular the fuel consumption of the vehicle while permitting by its controlled or active character the crossing of obstacles to low speed safely.
    FIG. 6 illustrates another alternative advantageous embodiment or in addition to the embodiment with an actuator 19 and an articulated mechanism 21 previously described. The description of the first embodiment with reference to Figures 1 to 5 applies to the same components, only the differences are now described.
    According to the embodiment illustrated very schematically in Figure 6, the deflector device 7 comprises an elastic return means 29 arranged to exert a restoring force on the baffle wall 15 to maintain it in the deployed position. This elastic return means 29 is configured so that in case of impact on the deflecting wall 15 opposing the restoring force, the deflecting wall 15 which was deployed is moved to the retracted position. It is a shock outside the vehicle such as an obstacle or an unexpected element on the road. When such a shock occurs while the deflecting wall 15 is deployed, and therefore while the vehicle is traveling at a speed for example greater than 50km / h, the elastic return means 29 allows the deflecting wall 15 to retract towards the inside of the engine compartment for example, thus avoiding damaging the deflecting wall 15.
    Preferably, this retraction of the deflecting wall 15 is temporary and the deflecting wall 15 does not remain in the retracted position after the impact. In other words, the elastic return means 29 is configured to return the baffle wall 15 to the deployed position when the force opposing the restoring force ceases.
    According to the particular example illustrated, the elastic return means 29 can be fixed on the base 11. For this in this example, the elastic return means 29 comprises a base 290 which can be fixed on the base 11 by any means of attachment 31 appropriate. In the case where the base 11 has a longitudinal form here in the form of a frame, the base 290 of the elastic return means 29 extends in the direction of the width of the base 11 and is fixed on a side wall of the base 11.
    The elastic return means 29 also has at least one free end disposed in elastic support against the deflecting wall 15.
    The elastic return means 29 is for example formed as a leaf spring. In this case, the elastic return means 29 comprises at least one flexible blade 291 extending from the base 290 to bear elastically against the deflecting wall 15.
    According to the embodiment described, the elastic return means 29 comprises two flexible blades 291 extending from the base 290. In this example each flexible blade 291 is arranged to exert a restoring force at a lateral portion. 15B of the deflecting wall 15. More specifically, the flexible blades 291 bear elastically against the upper edges of the side portions 15B of the deflecting wall 15.
    Thus, the elastic return means 29 such as a leaf spring allows the deflector device 7, more precisely here at the baffle wall 15, to be erased during an impact with an object foreign to the vehicle and resume its place, in the deployed position, thereafter.
    Such elastic return means 29 may in particular be combined with an articulated mechanism 21 with link (s) as described above.
    Of course, other embodiments or examples are conceivable without departing from the scope of the present invention.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    Baffle device (7) for a motor vehicle wheel (3), comprising a base (11) and a baffle wall (15) configured to be movably mounted relative to the base (11) between: an extended position and a retracted position , characterized in that the deflector device (7) comprises an articulated mechanism (21) for displacing the deflecting wall (15) comprising at least one connecting rod (221, 222) connected to the deflecting wall (15), so as to allow moving said baffle wall (15) between the retracted and deployed positions through said at least one link (221, 222).
    [2" id="c-fr-0002]
    2. deflector device (7) according to the preceding claim, wherein the baffle wall (15) is configured to be pivotally driven through said at least one rod (221, 222).
    [3" id="c-fr-0003]
    3. deflector device (7) according to one of the preceding claims, comprising an actuator (19) configured to control the articulated mechanism (21), so as to allow the displacement of said baffle wall (15) between the retracted and deployed positions via said at least one link (221, 222) under the action of the actuator (19).
    [4" id="c-fr-0004]
    4. deflector device (7) according to the preceding claim, wherein the actuator (19) is fixed on the baffle wall (15).
    [5" id="c-fr-0005]
    5. deflector device (7) according to any one of the preceding claims, wherein the articulated mechanism (21) comprises at least two rods (221, 222) hinged together.
    [6" id="c-fr-0006]
    6. deflector device (7) according to claim 5 taken in combination with one of claims 3 or 4, wherein the articulated mechanism (21) comprises at least a first link (221) and a second link (222) articulated between they, the first rod (221) being connected to the actuator (19) and the second link (222) being hingedly attached to the base (11), so that the first rod (221), when driven by the actuator (19), transmits a movement to the second link (222).
    [7" id="c-fr-0007]
    The deflector device (7) according to any of the preceding claims, wherein the articulated mechanism (21) comprises at least two sets of links (22a, 22b), each set of links (22a, 22b) comprising at least two links (221, 222) articulated together.
    [8" id="c-fr-0008]
    8. Baffle device (7) according to claims 6 and 7, wherein: the articulated mechanism comprises two first rods (221) and at least one transverse bar (23) connecting the first two rods (221), and wherein the actuator (19) is engaged with said at least one transverse bar (23) so as to drive the first links (221) through said at least one transverse bar (23).
    [9" id="c-fr-0009]
    Baffle device according to one of the preceding claims, wherein the baffle wall (15) comprises: a central portion (15A) and two opposite side portions (15B) on either side of the central portion (15A). ).
    [10" id="c-fr-0010]
    Baffle device (7) according to claims 8 and 9, comprising a first support (25) and a second support (27) respectively arranged on a lateral part (15B) of the deflector wall (15), in which the first support (25) is configured to carry the actuator (19) and a first end of a cross bar (23) between the first two links (221), and wherein the second carrier (27) is configured to carry the second end of said crossbar (23).
    [11" id="c-fr-0011]
    Baffle device (7) according to any one of the preceding claims, further comprising an elastic return means (29) arranged to exert a restoring force on the baffle wall (15) to hold it in the deployed position. , and such that in case of impact against the restoring force, the baffle wall (15) is moved from the extended position to the retracted position.
    [12" id="c-fr-0012]
    12. Front panel module for a motor vehicle, characterized in that it comprises at least one deflector device (7) according to any one of the preceding claims.
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    同族专利:
    公开号 | 公开日
    FR3048671B1|2019-07-19|
    EP3426544A1|2019-01-16|
    EP3426544B1|2021-11-03|
    WO2017153662A1|2017-09-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0051093A1|1980-10-31|1982-05-12|Premix, Inc.|A vehicle or vehicle trailer comprising means for reducing negative pressure behind the moving vehicle|
    DE3218670A1|1982-05-18|1983-11-24|Volkswagenwerk Ag, 3180 Wolfsburg|Motor vehicle with a front spoiler|
    JPH05105124A|1991-10-15|1993-04-27|Mitsubishi Motors Corp|Mobile spats for automobile|
    JP2007022149A|2005-07-12|2007-02-01|Aisin Seiki Co Ltd|Movable air balancing device|
    FR2959195A1|2010-04-23|2011-10-28|Peugeot Citroen Automobiles Sa|Vehicle i.e. motor vehicle, has structure element arranged in front of wheel in which duct canalizes part of air flow, and activating units that comprise mobile units for drifting another part of air flow in front of wheel|
    FR2970218A1|2011-01-06|2012-07-13|Peugeot Citroen Automobiles Sa|Front part i.e. bumper, for car, has air inlet opening, and flap that is mounted to be movable against action of energy absorption unit between closed position and retracted position relative to closed position|FR3103166A1|2019-11-15|2021-05-21|Renault S.A.S|Aerodynamic deflector device of a motor vehicle|US10124839B2|2013-06-19|2018-11-13|Magna Exteriors Inc.|Active front deflector|DE102018119825A1|2018-08-15|2020-02-20|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Underbody structure for a motor vehicle|
    FR3089194A1|2018-12-03|2020-06-05|VALEO SYSTEMES THERMIQUES - Service propriété Industrielle|Deflector device for a motor vehicle wheel|
    DE102019210771A1|2019-07-19|2021-01-21|Magna Exteriors Gmbh|Active wheel air deflector arrangement|
    法律状态:
    2017-03-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-15| PLSC| Publication of the preliminary search report|Effective date: 20170915 |
    2018-03-29| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1651969|2016-03-09|
    FR1651969A|FR3048671B1|2016-03-09|2016-03-09|WHEEL DEFLECTING DEVICE AND CORRESPONDING FRONT FACE MODULE|FR1651969A| FR3048671B1|2016-03-09|2016-03-09|WHEEL DEFLECTING DEVICE AND CORRESPONDING FRONT FACE MODULE|
    PCT/FR2017/050428| WO2017153662A1|2016-03-09|2017-02-27|Wheel deflector device and corresponding front-end module|
    EP17712198.5A| EP3426544B1|2016-03-09|2017-02-27|Wheel deflector device and corresponding front-end module|
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