EP3877242A1 - Motor vehicle comprising an impact protection deflector - Google Patents

Motor vehicle comprising an impact protection deflector

Info

Publication number
EP3877242A1
EP3877242A1 EP19823785.1A EP19823785A EP3877242A1 EP 3877242 A1 EP3877242 A1 EP 3877242A1 EP 19823785 A EP19823785 A EP 19823785A EP 3877242 A1 EP3877242 A1 EP 3877242A1
Authority
EP
European Patent Office
Prior art keywords
deflector
base
vehicle according
contact
equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19823785.1A
Other languages
German (de)
French (fr)
Inventor
Stephane BERTH
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stellantis Auto SAS
Original Assignee
PSA Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3877242A1 publication Critical patent/EP3877242A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B62D35/02—Streamlining the undersurfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K2015/03328—Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03421—Arrangements or special measures related to fuel tanks or fuel handling to protect the fuel tank against heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/063—Arrangement of tanks
    • B60K2015/0634—Arrangement of tanks the fuel tank is arranged below the vehicle floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82—Elements for improving aerodynamics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Definitions

  • the present invention relates to motor vehicle parts, and in particular but not exclusively to protections intended to be placed under the vehicle, for example under the tank or a traction battery thereof.
  • Such a part is a deflector essentially fulfilling aerodynamic functions by producing a streamlined fairing.
  • a deflector comprises a body made of a deformable material such as thermoplastic materials, the body having a first face in contact with the tank and a second face facing the outside of the vehicle.
  • the first face is provided with a foam plate of constant thickness glued on it, anti vibration pads, stiffening ribs to avoid vibration of the deflector.
  • the foam plate and the studs are in contact with the reservoir or the battery block, and make it possible to attenuate vibrations transmitted to the body by the reservoir or the block which are due to the running of the vehicle.
  • the stiffening ribs are generally not in contact with the reservoir or the battery block, and increase the stiffness of the body to avoid, for example, a resonance of the body by the excitation of the vibrations transmitted to the body.
  • the deflector protection function is a protection function against gravel or water projected by the vehicle wheels. But the body being deformable although stiffened by the ribs, protection against heavier or larger obstacles causing shocks is not effective because the body deforms until it comes into contact against sensitive equipment to protect, in particular connectors, lines, sensors, electronic boxes, which are located under the tank or the battery pack. Thus a gap between the deflector and the sensitive element is no longer respected.
  • the object of the invention is to remedy this drawback, in particular by optimizing this deflector.
  • the subject of the invention is a motor vehicle comprising a base and a deflector forming an aerodynamic fairing of the base, this base comprising an equipment sensitive to shock, such that the deflector comprises a protuberance having a contact surface corresponding to a set of points of the protuberance which are in contact with the base, the minimum distance between the periphery of this surface and this sensitive equipment not exceeding 40 mm, preferably 20 mm.
  • the surface in contact serves as a stop and limits this deformation
  • the protuberance then serving to transmit to the base the forces due to the impact.
  • the surface in contact does not cover the sensitive equipment, since it is the latter which is to be protected.
  • the contacting surface therefore rests on equipment that is not sensitive to the base, or failing that less sensitive to shocks than sensitive equipment. Also, the larger the surface in contact, the more the effect of the shocks will be attenuated and distributed over the base.
  • the deflector throughout the text of this document will be understood to mean protection of sensitive equipment against shocks, this protection also forming an aerodynamic fairing of the base preserving the separation between the sensitive equipment and the protection.
  • This base includes all the equipment that would be directly exposed to projections from the rolling surface without the presence of the deflector.
  • these projections are for example gravel, stones, water, projected by the wheels, or even bulky obstacles over which the vehicle comes into contact.
  • This base comprises, by way of nonlimiting examples, a part of the chassis, in particular the underside of a floor, a tank, a battery pack comprising a tank in which one or more battery modules are located, and sensitive equipment such as pipes. , electrical harnesses, connectors, sensors.
  • the protuberance is a depression of the deflector, in particular a stamping, consisting of a bottom and a peripheral wall, the bottom being the surface in contact with the base.
  • this very simple embodiment makes it possible to have substantial stiffening thanks to the peripheral wall which opposes the deformation of the deflector, locally to the sensitive equipment: in the event of an impact occurring against the deflector and deforming the latter, the peripheral wall will be compressed against the base. But the peripheral wall having its edge oriented towards the shock due to its shape of depression, it will have little or no deformation because it will be stressed in compression more than in bending. The contacting surface, and the peripheral wall therefore play the function of a wedge making a stop.
  • This depression can be achieved by the form of a mold in which the deflector is injected for a deflector based on plastic or aluminum, or by the form of a matrix in which the deflector is stamped for a deflector based on plastic. , aluminum, or steel.
  • this recess can be an inverted bowl and attached to a body of the deflector, and offers the advantage of being even more rigid although it is more complex to implement.
  • the peripheral wall closest to the sensitive equipment is orthogonal to the fairing.
  • the shock generally creates a reaction force of the deflector, the main component of which is orthogonal to the surface of the fairing.
  • the surface in contact with the base comprises a means for fixing the deflector to the base, in particular a hole for the passage of a screw or a clip.
  • the protuberance is a solid rib, in particular orthogonal to the fairing.
  • the protuberance is an assembly comprising the solid rib and the depression of the deflector, the solid rib being in continuity of material with the peripheral wall of the depression.
  • An advantage of this arrangement is that it allows the protuberance to be extended in areas where there is not enough room for sinking.
  • the protrusion extends transversely to the vehicle over the entire width of the deflector.
  • An advantage of this arrangement is that it makes it possible to block the introduction of gravel near the sensitive equipment, between the deflector and the base.
  • the contact surface partially or completely encircles the sensitive equipment.
  • This characteristic makes it possible to reinforce the rigidity of the deflector near the sensitive equipment, since the contacting surface which serves as a stop will protect the sensitive equipment on its periphery. In addition, this provision protects sensitive equipment for all directions of travel of the vehicle.
  • the base comprises a vibration damper placed in line with the surface in contact.
  • this damping element will avoid the generation of parasitic noise, but also protect a surface coating of the base, the base which will thus keep its protection against its oxidation.
  • the damping element is a textile, in particular a felt.
  • the textile is glued to the deflector.
  • the base comprises an energy storage device, the shock-sensitive equipment being equipment of the storage device among a hydraulic line, an electrical harness, a fluidic or electrical connector, a sensor, an electronic unit.
  • the energy storage device is a traction battery pack of an electric or hybrid vehicle.
  • the contact surface partially encircling the connector will completely isolate the connector from shocks, even when the vehicle is moving in reverse.
  • This encirclement is partial here because the connector is extended by a pipe whose path must not be obstructed by the peripheral wall or the full rib.
  • FIG.l shows a view of a vehicle underbody with sensitive equipment, without deflector and seen from below the vehicle.
  • FIG.2 shows a view of a deflector according to the invention, seen over the deflector, and showing there the locations of the sensitive equipment.
  • FIG.3 shows a sectional view of the underbody of the vehicle and of a deflector according to the invention, mounted on the underbody, near sensitive equipment.
  • FIG.4 is a diagram of a deflector according to the invention.
  • FIG.5 is a view of the deflector local to sensitive equipment, seen over the deflector.
  • FIG. 1 describes an example of a base 1 without deflector 2. It is the bottom of a battery box containing battery modules to be cooled.
  • This cooling is provided by a cooling circuit comprising pipes connected to connectors 3 which are equipment 3 sensitive to shocks, in particular shocks coming from projections of gravel, stone, water or mud, or any object on a road and which is thrown against the base 1 by the passage of the vehicle wheels.
  • connectors 3 which are equipment 3 sensitive to shocks, in particular shocks coming from projections of gravel, stone, water or mud, or any object on a road and which is thrown against the base 1 by the passage of the vehicle wheels.
  • the connectors 3 connect the pipes to the cooling plates which are inside the battery tray. If one of the connectors 3 is dislodged or torn off following an impact, the cooling circuit then has a leak in its heat transfer fluid which immediately causes a cooling failure requiring the vehicle to be immobilized as previously described.
  • FIG. 2 is a view of a deflector 2 according to the invention, seen from a first face, over the deflector 2, that is to say the deflector 2 "seen" by the base. There are shown locations of sensitive equipment 3.
  • This deflector is provided with a number of stiffening ribs, but they are not sufficient to have a rigidity of the deflector 2 sufficient to effectively protect sensitive equipment 3 against the impacts described above.
  • the second face of the deflector is the so-called fairing face 12, which is shown in FIG. 4.
  • This FIG. 2 discloses indentations 4 of the deflector 2, which are not all identified for the sake of clarity in this FIG. 2, but which are easily recognizable by their shape.
  • protuberances 4 which on the side of the first face are protuberances 4, are disposed near the sensitive equipment 3, which in this example are the connectors 3 of the cooling circuit, and are arranged so that it partially encircles the connectors 3.
  • a particular protuberance 6 is shown, because it comprises a means 13 for fixing the deflector 2 to the base 1.
  • Figure 3 is a sectional view of the base 1 of the vehicle and a deflector 2 according to an exemplary embodiment of the invention, mounted on the base 1, near a sensitive equipment 3. It is a deflector 2 forming the fairing 12 (shown in FIG. 4) aerodynamically of the base 1.
  • This base 1 comprises the equipment sensitive to shock, and this deflector 2 comprises a protrusion 4, 5 having a surface in contact 8 with the base 1, the distance minimum D min between the periphery 9 (shown in FIG. 5) of this surface 8 and this sensitive equipment 3 not exceeding 40 mm, preferably 20 mm.
  • the protrusion 4, 5 is the depression 4, 5 of the deflector 2, in particular a stamped, and consists of a bottom 10 and a peripheral wall 11 (shown in FIG. 4), the bottom 10 being the surface 8 in contact with the base 1.
  • the recess marked 5 has a peripheral wall 11 as close as possible to the connector 3 which is vertical, at the near clearance angle.
  • This verticality which is orthogonality with respect to the fairing 12, makes it possible to stress the peripheral wall 11 only in compression at this point, during an impact, giving great rigidity near the connector 3.
  • the minimum distance D min is the smallest distance between the sensitive equipment 3, which is an object (solid), and the periphery 9 of the surface 8 which is a geometric construction. This amounts concretely to considering the fulcrum or contact point of the depression 4, 5 on the base 1 closest to the sensitive equipment 3.
  • FIG. 4 essentially repeats FIG. 3, in addition to a diagram, but illustrates the bottom 10 and the peripheral wall 11, as well as the fairing 12. We also find the verticality of the peripheral wall 11 of the recess 5 at most. near connector 3.
  • This figure also shows diagrammatically means for fixing the deflector 2 to the base 1, symbolized by the black circles 15.
  • the surface in contact 8 with the base 1 also includes a fixing means 13 (shown in FIG. 1 ) of the deflector 2 on the base 1, for example a hole for the passage of a screw or a clip.
  • FIG. 4 further discloses the base 1 comprising a vibration-damping element 14, placed in line with the contacting surface 8.
  • the damping element 14 is a pad inserted between the contacting surface 8 and the battery tray 1.
  • This damping element 14 is advantageously a textile, in particular a felt, which has the advantage of being thin and therefore compact.
  • this damping element 14 is for example made of elastomer.
  • This damping element 14 is for example glued or clipped to the deflector 2, but can be glued or clipped to the base 1.
  • FIG. 5 is a view of the deflector 2 local to a sensitive item of equipment 3, seen over the deflector 2, that is to say “seen” through the base 1.
  • FIG. 5 illustrates the periphery 9 of the contacting surface 8, and the minimum distance Dmin on two examples of sinking.
  • This periphery 9 is a line which delimits a curvilinear geometric figure, this geometric figure being planar or not.
  • this geometrical figure is the contact surface 8 which in this example is substantially rectangular for the depressions 4, 5, 6 and matches the tray of the battery pack 1, this tray having any shape.
  • FIG. 5 shows a second exemplary embodiment of protuberance 7, this protuberance 7 being a solid rib 7, in particular orthogonal to the fairing 12.
  • This solid rib 7 is formed by a continuity of material of the deflector 2 and differs from the depressions 4, 5 , 6 by the fact that it has no peripheral wall 11 but just a wall forming the thickness of the rib 7.
  • the contact surface 8 of this example of protuberance 7 is then a very thin rectangle, its width being substantially the thickness of the rib 7.
  • This FIG. 5 thus discloses a set of protrusions 4, 5, 6, 7 comprising the solid rib 7 and the depression of the deflector 4, 5, 6, the solid rib 7 being in continuity with material with the peripheral wall 11 of the recess 4, 5, 6.
  • the surface in contact 8, which is then a surface in contact composed by all of the surfaces in contact with the protrusions 4, 5, 6, 7, partially encircles the sensitive equipment 3. Similarly, as a variant, this encirclement can be total.
  • this same encirclement can be obtained by only one of the protrusions 4, 5, 6, 7.
  • the movement of the vehicle going from right to left of FIG. 5, the protuberance 4, 5, 6, 7 extends transversely to the vehicle, advantageously over the entire width of the deflector 2.
  • all the ribs 7 and the recesses 4, 5, 6 form a protective barrier tight against gravel, but also against the projection of water, mud, or snow, likely to interfere between the deflector 2 and the base 1, this barrier being local to the sensitive equipment 3 thus improving its protection.
  • the battery pack 1 is part of an energy storage device, the shock-sensitive equipment 3 being an equipment of the storage device among a hydraulic line, an electrical harness, the fluidic or electrical connector 3, a sensor, a electric case.
  • the vehicle is advantageously an electric or hybrid propulsion vehicle, for example a hybrid vehicle having a thermal propulsion machine coupled in series or in parallel to an electric propulsion machine.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a motor vehicle comprising an underbody (1) and a deflector (2) which forms an aerodynamic fairing (12) of the underbody (1), said underbody (1) comprising impact-sensitive equipment (3), and the deflector (2) comprising a projection (4, 5) having a surface (8) which is in contact with the underbody (1), wherein the minimum distance (Dmin) between the periphery of this surface (8) and the impact-sensitive equipment (3) does not exceed 40 mm, preferably 20 mm.

Description

DESCRIPTION  DESCRIPTION
VEHICULE AUTOMOBILE COMPRENANT UN DEFLECTEUR DE PROTECTION CONTRE LES CHOCS. MOTOR VEHICLE COMPRISING AN IMPACT PROTECTION DEFLECTOR.
La présente invention concerne les pièces de véhicule automobile, et en particulier mais non exclusivement des protections destinées à être placées sous le véhicule, par exemple sous le réservoir ou une batterie de traction de celui-ci. The present invention relates to motor vehicle parts, and in particular but not exclusively to protections intended to be placed under the vehicle, for example under the tank or a traction battery thereof.
On connaît une pièce placée sous le réservoir du véhicule et formant un écran de protection sous la caisse du véhicule. Une telle pièce est un déflecteur remplissant essentiellement des fonctions aérodynamiques en réalisant un carénage profilé. Un tel déflecteur comprend un corps réalisé en un matériau déformable comme les matériaux thermoplastiques, le corps présentant une première face en contact avec le réservoir et une deuxième face tournée vers l'extérieur du véhicule. La première face est pourvue d'une plaque de mousse d'épaisseur constante collée sur celle-ci, de plots anti vibration, de nervures de rigidification pour éviter une vibration du déflecteur. La plaque de mousse et les plots sont en contact avec le réservoir ou le bloc de la batterie, et permettent d'atténuer des vibrations transmises au corps par le réservoir ou le bloc qui sont dues au roulage du véhicule. Les nervures de rigidification ne sont en général pas en contact avec le réservoir ou le bloc de la batterie, et augmentent la raideur du corps pour éviter, par exemple, une mise en résonnance du corps par l’excitation des vibrations transmises au corps.  There is known a part placed under the vehicle tank and forming a protective screen under the vehicle body. Such a part is a deflector essentially fulfilling aerodynamic functions by producing a streamlined fairing. Such a deflector comprises a body made of a deformable material such as thermoplastic materials, the body having a first face in contact with the tank and a second face facing the outside of the vehicle. The first face is provided with a foam plate of constant thickness glued on it, anti vibration pads, stiffening ribs to avoid vibration of the deflector. The foam plate and the studs are in contact with the reservoir or the battery block, and make it possible to attenuate vibrations transmitted to the body by the reservoir or the block which are due to the running of the vehicle. The stiffening ribs are generally not in contact with the reservoir or the battery block, and increase the stiffness of the body to avoid, for example, a resonance of the body by the excitation of the vibrations transmitted to the body.
La fonction de protection du déflecteur est une fonction de protection contre les gravillons ou l’eau projetés par les roues du véhicule. Mais le corps étant déformable bien que rigidifié par les nervures, la protection contre des obstacles plus lourds ou plus volumineux provoquant des chocs n’est pas efficace car le corps se déforme jusqu’à venir en contact contre un équipement sensible à protéger, notamment des connecteurs, des conduites, des capteurs, des boîtiers électroniques, qui se trouvent sous le réservoir ou le bloc batterie. Ainsi un écartement entre le déflecteur et l’élément sensible n’est plus respecté.  The deflector protection function is a protection function against gravel or water projected by the vehicle wheels. But the body being deformable although stiffened by the ribs, protection against heavier or larger obstacles causing shocks is not effective because the body deforms until it comes into contact against sensitive equipment to protect, in particular connectors, lines, sensors, electronic boxes, which are located under the tank or the battery pack. Thus a gap between the deflector and the sensitive element is no longer respected.
On connaît du document de brevet DE 102010033332- Al un déflecteur prenant appui sur une barre antiroulis et protégeant ainsi des équipements situés à proximité de cette barre.  We know from patent document DE 102010033332- A1 a deflector bearing on an anti-roll bar and thus protecting equipment located near this bar.
Malheureusement cette solution implique la présence de cette barre antiroulis, qui dans bien des cas n’est pas présente, en particulier sous le réservoir ou le bloc batterie précités. En outre, on notera que la protection est réalisée par la barre, le déflecteur jouant d’avantage un rôle de carénage que de reprise d’efforts.  Unfortunately, this solution implies the presence of this anti-roll bar, which in many cases is not present, in particular under the aforementioned tank or battery pack. In addition, it will be noted that the protection is carried out by the bar, the deflector playing more of a fairing role than of recovery of forces.
Il existe donc un besoin d’un déflecteur apportant une protection efficace pour des équipements sensibles. Le but de l’invention est de remédier à cet inconvénient, notamment en optimisant ce déflecteur.  There is therefore a need for a deflector providing effective protection for sensitive equipment. The object of the invention is to remedy this drawback, in particular by optimizing this deflector.
A cet effet, l’invention a pour objet un véhicule automobile comprenant un soubassement et un déflecteur formant un carénage aérodynamique du soubassement, ce soubassement comprenant un équipement sensible au choc, tel que le déflecteur comprend une protubérance présentant une surface en contact correspondant à un ensemble de points de la protubérance qui sont en contact avec le soubassement, la distance minimale entre la périphérie de cette surface et cet équipement sensible n’excédant pas 40 mm, préférentiellement 20 mm. To this end, the subject of the invention is a motor vehicle comprising a base and a deflector forming an aerodynamic fairing of the base, this base comprising an equipment sensitive to shock, such that the deflector comprises a protuberance having a contact surface corresponding to a set of points of the protuberance which are in contact with the base, the minimum distance between the periphery of this surface and this sensitive equipment not exceeding 40 mm, preferably 20 mm.
Ainsi, en cas de choc survenant contre le déflecteur et déformant ce dernier, la surface en contact sert de butée et limite cette déformation, la protubérance servant alors à transmettre au soubassement les efforts dus au choc. L’avantage est que, étant à proximité de l’équipement sensible, c’est-à-dire à moins de 40 mm, la protubérance garantie la protection de l’équipement sensible. Cet agencement permet également de protéger du choc l’équipement sensible sans avoir à rigidifier tout le déflecteur, ce qui nécessiterait un nombre de protubérances conséquent sur toute la surface du déflecteur le rendant plus complexe et plus lourd, pour un résultat incertain. Thus, in the event of an impact occurring against the deflector and deforming the latter, the surface in contact serves as a stop and limits this deformation, the protuberance then serving to transmit to the base the forces due to the impact. The advantage is that, being close to the sensitive equipment, that is to say within 40 mm, the protuberance guarantees the protection of the sensitive equipment. This arrangement also makes it possible to protect sensitive equipment from impact without having to stiffen the entire deflector, which would require a substantial number of protrusions over the entire surface of the deflector making it more complex and heavier, for an uncertain result.
Bien entendu, la surface en contact ne recouvre pas l’équipement sensible, puisque c’est ce dernier qui est à protéger. La surface en contact prend donc appui sur un équipement non sensible du soubassement, ou à défaut moins sensible aux chocs que l’équipement sensible. Egalement, plus la surface en contact est grande, plus l’effet des chocs sera atténué et répartis sur le soubassement. Of course, the surface in contact does not cover the sensitive equipment, since it is the latter which is to be protected. The contacting surface therefore rests on equipment that is not sensitive to the base, or failing that less sensitive to shocks than sensitive equipment. Also, the larger the surface in contact, the more the effect of the shocks will be attenuated and distributed over the base.
On entendra par déflecteur dans tout le texte de ce document, une protection d’un équipement sensible contre des chocs, cette protection formant en outre un carénage aérodynamique du soubassement préservant l’écartement entre l’équipement sensible et la protection. The deflector throughout the text of this document will be understood to mean protection of sensitive equipment against shocks, this protection also forming an aerodynamic fairing of the base preserving the separation between the sensitive equipment and the protection.
On entendra par carénage dans tout le texte de ce document, la peau extérieure du déflecteur en contact avec le flux d’air provoqué par la vitesse du véhicule en marche.  Throughout the text of this document, we mean the outer skin of the deflector in contact with the air flow caused by the speed of the moving vehicle.
On comprendra par soubassement dans tout le texte de ce document, une face du véhicule en vis à vis d’une surface de roulage du véhicule, par exemple la route pour un véhicule automobile. Ce soubassement regroupe tous les équipements qui seraient directement exposés aux projections de la surface de roulage sans la présence du déflecteur. Pour la route, ces projections sont par exemple des gravillons, des pierres, de l’eau, projetés par les roues, ou encore des obstacles volumineux par-dessus lesquels le véhicule rentre en contact. Ce soubassement comprend, à titre exemples non limitatifs, une partie du châssis, notamment le dessous d’un plancher, un réservoir, un bloc batterie comprenant un bac dans lequel se trouvent un ou plusieurs modules de batterie, et des équipements sensibles comme des conduites, des faisceaux électriques, des connecteurs, des capteurs.  By underbody throughout the text of this document, one side of the vehicle facing a rolling surface of the vehicle, for example the road for a motor vehicle, will be understood. This base includes all the equipment that would be directly exposed to projections from the rolling surface without the presence of the deflector. For the road, these projections are for example gravel, stones, water, projected by the wheels, or even bulky obstacles over which the vehicle comes into contact. This base comprises, by way of nonlimiting examples, a part of the chassis, in particular the underside of a floor, a tank, a battery pack comprising a tank in which one or more battery modules are located, and sensitive equipment such as pipes. , electrical harnesses, connectors, sensors.
Selon un mode de réalisation selon l’invention, la protubérance est un enfoncement du déflecteur, notamment un emboutis, constitué d’un fond et d’une paroi périphérique, le fond étant la surface en contact avec le soubassement.  According to an embodiment according to the invention, the protuberance is a depression of the deflector, in particular a stamping, consisting of a bottom and a peripheral wall, the bottom being the surface in contact with the base.
Ainsi, cette réalisation très simple, permet d’avoir une rigidification importante grâce à la paroi périphérique qui s’oppose à la déformation du déflecteur, localement à l’équipement sensible : en cas de choc survenant contre le déflecteur et déformant ce dernier, la paroi périphérique sera comprimée contre le soubassement. Mais la paroi périphérique ayant sa tranche orientée vers le choc de par sa forme d’enfoncement, elle aura peu ou pas de déformation car elle sera sollicitée en compression plus qu’en flexion. La surface en contacte, et la paroi périphérique jouent donc la fonction d’une cale faisant butée. Cet enfoncement peut être réalisé par la forme d’un moule dans lequel le déflecteur est injecté pour un déflecteur à base de plastique ou en aluminium, ou par la forme d’une matrice dans lequel le déflecteur est emboutis pour un déflecteur à base de plastique, d’aluminium, ou d’acier. Thus, this very simple embodiment makes it possible to have substantial stiffening thanks to the peripheral wall which opposes the deformation of the deflector, locally to the sensitive equipment: in the event of an impact occurring against the deflector and deforming the latter, the peripheral wall will be compressed against the base. But the peripheral wall having its edge oriented towards the shock due to its shape of depression, it will have little or no deformation because it will be stressed in compression more than in bending. The contacting surface, and the peripheral wall therefore play the function of a wedge making a stop. This depression can be achieved by the form of a mold in which the deflector is injected for a deflector based on plastic or aluminum, or by the form of a matrix in which the deflector is stamped for a deflector based on plastic. , aluminum, or steel.
En variante de réalisation, cet enfoncement peut être une cuvette renversée et rapportée sur un corps du déflecteur, et offre l’avantage d’être encore plus rigide bien que ce soit plus complexe à mettre en œuvre.  In an alternative embodiment, this recess can be an inverted bowl and attached to a body of the deflector, and offers the advantage of being even more rigid although it is more complex to implement.
Selon un mode de réalisation de l’invention, la paroi périphérique au plus près de l’équipement sensible est orthogonale au carénage.  According to one embodiment of the invention, the peripheral wall closest to the sensitive equipment is orthogonal to the fairing.
Cette disposition permet de ne solliciter la paroi périphérique qu’en compression, offrant alors une grande rigidité. En effet, le choc crée en général une force de réaction du déflecteur dont la composante principale est orthogonale à la surface du carénage.  This arrangement makes it possible to stress the peripheral wall only in compression, thus offering great rigidity. In fact, the shock generally creates a reaction force of the deflector, the main component of which is orthogonal to the surface of the fairing.
Selon un mode de réalisation de l’invention, la surface en contact avec le soubassement comprend un moyen de fixation du déflecteur sur le soubassement, notamment un trou de passage d’une vis ou d’un clip.  According to one embodiment of the invention, the surface in contact with the base comprises a means for fixing the deflector to the base, in particular a hole for the passage of a screw or a clip.
Selon une variante de réalisation de l’invention, la protubérance est une nervure pleine, notamment orthogonale au carénage.  According to an alternative embodiment of the invention, the protuberance is a solid rib, in particular orthogonal to the fairing.
Un avantage de cette disposition, est qu’elle permet de garder le carénage le plus aérodynamique possible en évitant de créer l’enfoncement précédemment décrit. Ce n’est cependant pas une réalisation préférée car cette nervure pleine est moins résistante à la compression que la paroi périphérique qui elle, a en plus une résistance de forme.  An advantage of this arrangement is that it keeps the fairing as aerodynamic as possible while avoiding creating the depression previously described. However, this is not a preferred embodiment because this solid rib is less resistant to compression than the peripheral wall which, in addition, has a form resistance.
Selon une variante de réalisation de l’invention, la protubérance est un ensemble comprenant la nervure pleine et l’enfoncement du déflecteur, la nervure pleine étant en continuité de matière avec la paroi périphérique de l’enfoncement.  According to an alternative embodiment of the invention, the protuberance is an assembly comprising the solid rib and the depression of the deflector, the solid rib being in continuity of material with the peripheral wall of the depression.
Un avantage de cette disposition, est qu’elle permet de prolonger la protubérance dans des zones où il n’y a pas de place suffisante pour l’enfoncement.  An advantage of this arrangement is that it allows the protuberance to be extended in areas where there is not enough room for sinking.
Selon une variante de réalisation de l’invention, la protubérance s’étend transversalement au véhicule sur toute la largeur du déflecteur.  According to an alternative embodiment of the invention, the protrusion extends transversely to the vehicle over the entire width of the deflector.
Un avantage de cette disposition, est qu’elle permet de bloquer l’introduction de gravillons à proximité de l’équipement sensible, entre le déflecteur et le soubassement.  An advantage of this arrangement is that it makes it possible to block the introduction of gravel near the sensitive equipment, between the deflector and the base.
Selon un mode de réalisation de l’invention, la surface de contact encercle partiellement ou totalement l’équipement sensible.  According to one embodiment of the invention, the contact surface partially or completely encircles the sensitive equipment.
Cette caractéristique permet de renforcer la rigidité du déflecteur à proximité de l’équipement sensible, car la surface en contact qui sert de butée va protéger l’équipement sensible sur sa périphérie. En outre, cette disposition permet de protéger l’équipement sensible pour tous les sens de marche du véhicule.  This characteristic makes it possible to reinforce the rigidity of the deflector near the sensitive equipment, since the contacting surface which serves as a stop will protect the sensitive equipment on its periphery. In addition, this provision protects sensitive equipment for all directions of travel of the vehicle.
Selon un mode de réalisation, le soubassement comprend un amortisseur de vibrations disposé au droit de la surface en contact. Ainsi cet élément amortisseur va éviter la génération de bruits parasites, mais aussi protéger un revêtement de surface du soubassement, soubassement qui gardera ainsi sa protection contre son oxydation. According to one embodiment, the base comprises a vibration damper placed in line with the surface in contact. Thus this damping element will avoid the generation of parasitic noise, but also protect a surface coating of the base, the base which will thus keep its protection against its oxidation.
Selon un mode de réalisation de l’invention, l’élément amortisseur est un textile, notamment une feutrine.  According to one embodiment of the invention, the damping element is a textile, in particular a felt.
Selon un mode de réalisation de l’invention, le textile est collé sur le déflecteur.  According to one embodiment of the invention, the textile is glued to the deflector.
Selon un mode de réalisation de l’invention, le soubassement comprend un dispositif de stockage d’énergie, l’équipement sensible au choc étant un équipement du dispositif de stockage parmi une conduite hydraulique, un faisceau électrique, un connecteur fluidique ou électrique, un capteur, un boîtier électronique. According to one embodiment of the invention, the base comprises an energy storage device, the shock-sensitive equipment being equipment of the storage device among a hydraulic line, an electrical harness, a fluidic or electrical connector, a sensor, an electronic unit.
Selon un mode de réalisation de l’invention, le dispositif de stockage d’énergie est un bloc batterie de traction d’un véhicule électrique ou hybride.  According to one embodiment of the invention, the energy storage device is a traction battery pack of an electric or hybrid vehicle.
En effet, on peut prendre l’exemple non limitatif d’un connecteur d’un circuit de refroidissement d’un bloc batterie d’un véhicule électrique ou hybride, positionné sous le bloc batterie c’est-à-dire sous le soubassement selon la définition précédente. Ce connecteur se trouverait directement exposé aux projections des gravillons ou aux chocs sans la présence du déflecteur. Or si ce connecteur venait à être arraché ou simplement déboité, cela provoquerait l’arrêt immédiat du véhicule par mesure de sécurité. En effet, un tel bloc batterie, en particulier avec des modules lithium-ion, peut thermiquement s’emballer et prendre feu en l’absence du bon fonctionnement de ce circuit de refroidissement.  Indeed, we can take the nonlimiting example of a connector for a cooling circuit of a battery pack of an electric or hybrid vehicle, positioned under the battery pack, that is to say under the base according to the previous definition. This connector would be directly exposed to projections of gravel or impact without the presence of the deflector. However, if this connector were to be torn off or simply dislodged, this would cause the vehicle to stop immediately for safety reasons. Indeed, such a battery pack, in particular with lithium-ion modules, can heat up and catch fire in the absence of the proper functioning of this cooling circuit.
La surface de contact encerclant partiellement le connecteur va isoler complètement le connecteur des chocs, y compris lorsque le véhicule avance en marche-arrière. Cet encerclement est ici partiel car le connecteur est prolongé par une conduite dont le cheminement ne doit pas être obstrué par la paroi périphérique ou la nervure pleine. Cependant, on peut envisager un trou de passage pour la conduite à travers la paroi périphérique ou la nervure pleine, et donc avoir un encerclement total, mais ce n’est pas une réalisation préférée car cela laisserait une partie de la conduite en dehors de la protection conférée par le déflecteur, ce qui n’est pas optimal en terme de sécurité.  The contact surface partially encircling the connector will completely isolate the connector from shocks, even when the vehicle is moving in reverse. This encirclement is partial here because the connector is extended by a pipe whose path must not be obstructed by the peripheral wall or the full rib. However, it is possible to envisage a passage hole for the pipe through the peripheral wall or the full rib, and therefore to have a total encirclement, but this is not a preferred embodiment since this would leave part of the pipe outside the protection provided by the deflector, which is not optimal in terms of security.
D’autres caractéristiques, buts et avantages de l’invention apparaîtront à la lecture de la description des exemples de réalisation non limitatifs qui vont suivre, faite en référence aux figures 1 à 5 annexées, qui représentent :  Other characteristics, objects and advantages of the invention will appear on reading the description of the nonlimiting exemplary embodiments which will follow, made with reference to Figures 1 to 5 appended, which represent:
[Fig.l] représente une vue d’un soubassement d’un véhicule avec des équipements sensibles, sans déflecteur et vue de dessous le véhicule.  [Fig.l] shows a view of a vehicle underbody with sensitive equipment, without deflector and seen from below the vehicle.
[Fig.2] représente une vue d’un déflecteur selon l’invention, vue par-dessus le déflecteur, et en y représentant les emplacements des équipements sensibles.  [Fig.2] shows a view of a deflector according to the invention, seen over the deflector, and showing there the locations of the sensitive equipment.
[Fig.3] représente une vue en coupe du soubassement du véhicule et d’un déflecteur selon l’invention, monté sur le soubassement, à proximité d’un équipement sensible.  [Fig.3] shows a sectional view of the underbody of the vehicle and of a deflector according to the invention, mounted on the underbody, near sensitive equipment.
[Fig.4] est un schéma d’un déflecteur selon l’invention. [Fig.5] est une vue du déflecteur locale à un équipement sensible, vue par-dessus le déflecteur.[Fig.4] is a diagram of a deflector according to the invention. [Fig.5] is a view of the deflector local to sensitive equipment, seen over the deflector.
La figure 1 décrit un exemple de soubassement 1 sans déflecteur 2. C’est le fond d’un bac de batterie contenant des modules de batterie à refroidir. Ce refroidissement est apporté par un circuit de refroidissement comprenant des conduites raccordées à des connecteurs 3 qui sont des équipements sensibles 3 aux chocs, en particulier les chocs provenant de projections de gravillons, de pierre, d’eau ou de boue, ou tout objet sur une route et qui se retrouve projeté contre le soubassement 1 par le passage des roues du véhicule. On peut constater la présence de plusieurs connecteurs 3 dans différentes zones du soubassement qui sont éloignées les unes des autres. Ces connecteurs 3 raccordent les conduites à des plaques de refroidissement qui se trouvent à l’intérieur du bac batterie. Si l’un des connecteurs 3 se trouve déboité ou arraché suite à un choc, le circuit de refroidissement présente alors une fuite de son fluide caloporteur qui provoque immédiatement une défaillance du refroidissement imposant l’immobilisation du véhicule comme précédemment décrit. FIG. 1 describes an example of a base 1 without deflector 2. It is the bottom of a battery box containing battery modules to be cooled. This cooling is provided by a cooling circuit comprising pipes connected to connectors 3 which are equipment 3 sensitive to shocks, in particular shocks coming from projections of gravel, stone, water or mud, or any object on a road and which is thrown against the base 1 by the passage of the vehicle wheels. We can see the presence of several connectors 3 in different areas of the base which are distant from each other. These connectors 3 connect the pipes to the cooling plates which are inside the battery tray. If one of the connectors 3 is dislodged or torn off following an impact, the cooling circuit then has a leak in its heat transfer fluid which immediately causes a cooling failure requiring the vehicle to be immobilized as previously described.
La figure 2 est une vue d’un déflecteur 2 selon l’invention, vue selon une première face, par-dessus le déflecteur 2, c’est-à-dire le déflecteur 2 « vu » par le soubassement. Y sont représentés des emplacements d’équipements sensibles 3. Ce déflecteur est pourvu d’un certain nombre de nervures de rigidification, mais elles ne suffisent pas à avoir une rigidité du déflecteur 2 suffisante pour protéger efficacement les équipements sensible 3 contre chocs précédemment décrits. La seconde face du déflecteur est la face dite de carénage 12, qui est représentée dans la figure 4. Cette figure 2 divulgue des enfoncements 4 du déflecteur 2, qui ne sont pas tous repérés par soucis de clarté de cette figure 2, mais qui sont facilement reconnaissables de par leur forme. Ces enfoncements 4, qui du côté de la première face sont des protubérances 4, sont disposés à proximité des équipements sensibles 3, qui sont dans cet exemple les connecteurs 3 du circuit de refroidissement, et sont disposés de telle sorte qu’il encercle en partie les connecteurs 3. Une protubérance particulière 6 est représentée, car elle comprend un moyen de fixation 13 du déflecteur 2 sur le soubassement 1.  FIG. 2 is a view of a deflector 2 according to the invention, seen from a first face, over the deflector 2, that is to say the deflector 2 "seen" by the base. There are shown locations of sensitive equipment 3. This deflector is provided with a number of stiffening ribs, but they are not sufficient to have a rigidity of the deflector 2 sufficient to effectively protect sensitive equipment 3 against the impacts described above. The second face of the deflector is the so-called fairing face 12, which is shown in FIG. 4. This FIG. 2 discloses indentations 4 of the deflector 2, which are not all identified for the sake of clarity in this FIG. 2, but which are easily recognizable by their shape. These recesses 4, which on the side of the first face are protuberances 4, are disposed near the sensitive equipment 3, which in this example are the connectors 3 of the cooling circuit, and are arranged so that it partially encircles the connectors 3. A particular protuberance 6 is shown, because it comprises a means 13 for fixing the deflector 2 to the base 1.
La figure 3 est une vue en coupe du soubassement 1 du véhicule et d’un déflecteur 2 selon un exemple de réalisation de l’invention, monté sur le soubassement 1, à proximité d’un équipement sensible 3. C’est un déflecteur 2 formant le carénage 12 (représenté en figure 4) aérodynamique du soubassement 1. Ce soubassement 1 comprend l’équipement sensible 3 au choc, et ce déflecteur 2 comprend une protubérance 4, 5 présentant une surface en contact 8 avec le soubassement 1, la distance minimale Dmin entre la périphérie 9 (représentée en figure 5) de cette surface 8 et cet équipement sensible 3 n’excédant pas 40 mm, préférentiellement 20 mm. La protubérance 4, 5 est l’enfoncement 4, 5 du déflecteur 2, notamment un emboutis, et est constitué d’un fond 10 et d’une paroi périphérique 11 (représentés en figure 4), le fond 10 étant la surface 8 en contact avec le soubassement 1. Figure 3 is a sectional view of the base 1 of the vehicle and a deflector 2 according to an exemplary embodiment of the invention, mounted on the base 1, near a sensitive equipment 3. It is a deflector 2 forming the fairing 12 (shown in FIG. 4) aerodynamically of the base 1. This base 1 comprises the equipment sensitive to shock, and this deflector 2 comprises a protrusion 4, 5 having a surface in contact 8 with the base 1, the distance minimum D min between the periphery 9 (shown in FIG. 5) of this surface 8 and this sensitive equipment 3 not exceeding 40 mm, preferably 20 mm. The protrusion 4, 5 is the depression 4, 5 of the deflector 2, in particular a stamped, and consists of a bottom 10 and a peripheral wall 11 (shown in FIG. 4), the bottom 10 being the surface 8 in contact with the base 1.
On remarquera que l’enfoncement repéré 5 a une paroi périphérique 11 au plus près du connecteur 3 qui est verticale, à l’angle de dépouille prés. Cette verticalité, qui est une orthogonalité par rapport au carénage 12, permet de ne solliciter la paroi périphérique 11 qu’en compression à cet endroit, lors d’un choc, conférant une grande rigidité à proximité du connecteur 3.  It will be noted that the recess marked 5 has a peripheral wall 11 as close as possible to the connector 3 which is vertical, at the near clearance angle. This verticality, which is orthogonality with respect to the fairing 12, makes it possible to stress the peripheral wall 11 only in compression at this point, during an impact, giving great rigidity near the connector 3.
La distance minimale Dmin est la plus petite distance entre l’équipement sensible 3, qui est un objet (solide), et la périphérie 9 de la surface 8 qui est une construction géométrique. Cela revient concrètement à considérer le point d’appui ou de contact de l’enfoncement 4, 5 sur le soubassement 1 le plus proche de l’équipement sensible 3. La figure 4 reprend pour l’essentiel la figure 3, en plus schématique, mais illustre le fond 10 et la paroi périphérique 11, ainsi que le carénage 12. On retrouve également la verticalité de la paroi périphérique 11 de l’enfoncement 5 au plus près du connecteur 3. The minimum distance D min is the smallest distance between the sensitive equipment 3, which is an object (solid), and the periphery 9 of the surface 8 which is a geometric construction. This amounts concretely to considering the fulcrum or contact point of the depression 4, 5 on the base 1 closest to the sensitive equipment 3. FIG. 4 essentially repeats FIG. 3, in addition to a diagram, but illustrates the bottom 10 and the peripheral wall 11, as well as the fairing 12. We also find the verticality of the peripheral wall 11 of the recess 5 at most. near connector 3.
Cette figure schématise en outre des moyens de fixation du déflecteur 2 sur le soubassement 1, symbolisés par les ronds noirs 15. Mais en variante, la surface en contact 8 avec le soubassement 1 comprend également un moyen de fixation 13 (représenté sur la figure 1) du déflecteur 2 sur le soubassement 1, par exemple un trou de passage d’une vis ou d’un clip.  This figure also shows diagrammatically means for fixing the deflector 2 to the base 1, symbolized by the black circles 15. But as a variant, the surface in contact 8 with the base 1 also includes a fixing means 13 (shown in FIG. 1 ) of the deflector 2 on the base 1, for example a hole for the passage of a screw or a clip.
La figure 4 divulgue en outre le soubassement 1 comprenant un élément amortisseur 14 de vibrations, disposé au droit de la surface en contact 8. Ainsi, dans cet exemple, l’élément amortisseur 14 est un patin inséré entre la surface en contact 8 et le bac de batterie 1.  FIG. 4 further discloses the base 1 comprising a vibration-damping element 14, placed in line with the contacting surface 8. Thus, in this example, the damping element 14 is a pad inserted between the contacting surface 8 and the battery tray 1.
Cet élément amortisseur 14 est avantageusement un textile, notamment une feutrine, qui a l’avantage d’être d’une faible épaisseur et donc peu encombrant. Mais en variante, cet élément amortisseur 14 est par exemple en élastomère.  This damping element 14 is advantageously a textile, in particular a felt, which has the advantage of being thin and therefore compact. However, as a variant, this damping element 14 is for example made of elastomer.
Cet élément amortisseur 14 est par exemple collé ou clipsé sur le déflecteur 2, mais peut être collé ou clipsé sur le soubassement 1.  This damping element 14 is for example glued or clipped to the deflector 2, but can be glued or clipped to the base 1.
La figure 5 est une vue du déflecteur 2 locale à un équipement sensible 3, vue par-dessus le déflecteur 2, C’est-à-dire « vue » par le soubassement 1.  FIG. 5 is a view of the deflector 2 local to a sensitive item of equipment 3, seen over the deflector 2, that is to say "seen" through the base 1.
Cette figure 5 illustre la périphérie 9 de la surface en contact 8, et la distance minimale Dmin sur deux exemples d’enfoncement. Cette périphérie 9 est une ligne qui délimite une figure géométrique curviligne, cette figure géométrique étant plane ou non. En l’espèce, cette figure géométrique est la surface en contact 8 qui dans cet exemple est sensiblement rectangulaire pour les enfoncements 4, 5, 6 et épouse le bac du bloc batterie 1, ce bac ayant une forme quelconque.  This FIG. 5 illustrates the periphery 9 of the contacting surface 8, and the minimum distance Dmin on two examples of sinking. This periphery 9 is a line which delimits a curvilinear geometric figure, this geometric figure being planar or not. In this case, this geometrical figure is the contact surface 8 which in this example is substantially rectangular for the depressions 4, 5, 6 and matches the tray of the battery pack 1, this tray having any shape.
Cette figure 5 montre un second exemple de réalisation de protubérance 7, cette protubérance 7 étant une nervure pleine 7, notamment orthogonale au carénage 12. Cette nervure pleine 7 est formée par une continuité de matière du déflecteur 2 et se différencie des enfoncements 4, 5, 6 par le fait qu’elle n’a pas de paroi périphérique 11 mais juste une paroi formant l’épaisseur de la nervure 7. La surface en contact 8 de cet exemple de protubérance 7 est alors un rectangle très mince, sa largeur étant sensiblement l’épaisseur de la nervure 7. Cette figure 5 divulgue ainsi un ensemble de protubérances 4, 5, 6, 7 comprenant la nervure pleine 7 et l’enfoncement du déflecteur 4, 5, 6, la nervure pleine 7 étant en continuité de matière avec la paroi périphérique 11 de l’enfoncement 4, 5, 6. Dans cette configuration, la surface en contact 8, qui est alors une surface en contact composée par l’ensemble des surfaces en contact des protubérances 4, 5, 6, 7, encercle partiellement l’équipement sensible 3. De la même manière, en variante, cet encerclement peut être total.  This FIG. 5 shows a second exemplary embodiment of protuberance 7, this protuberance 7 being a solid rib 7, in particular orthogonal to the fairing 12. This solid rib 7 is formed by a continuity of material of the deflector 2 and differs from the depressions 4, 5 , 6 by the fact that it has no peripheral wall 11 but just a wall forming the thickness of the rib 7. The contact surface 8 of this example of protuberance 7 is then a very thin rectangle, its width being substantially the thickness of the rib 7. This FIG. 5 thus discloses a set of protrusions 4, 5, 6, 7 comprising the solid rib 7 and the depression of the deflector 4, 5, 6, the solid rib 7 being in continuity with material with the peripheral wall 11 of the recess 4, 5, 6. In this configuration, the surface in contact 8, which is then a surface in contact composed by all of the surfaces in contact with the protrusions 4, 5, 6, 7, partially encircles the sensitive equipment 3. Similarly, as a variant, this encirclement can be total.
Dans un autre exemple, non illustré, ce même encerclement peut être obtenu par une seule des protubérances 4, 5, 6, 7.  In another example, not illustrated, this same encirclement can be obtained by only one of the protrusions 4, 5, 6, 7.
Selon la variante de réalisation de la figure 5, le mouvement du véhicule allant de droite à gauche de la figure 5, la protubérance 4, 5, 6, 7 s’étend transversalement au véhicule, avantageusement sur toute la largeur du déflecteur 2. Ainsi l’ensemble des nervures 7 et des enfoncements 4, 5, 6 forment une barrière de protection étanche au gravillons, mais aussi aux projection d’eau, de boue, ou de neige, susceptibles de s’immiscer entre le déflecteur 2 et le soubassement 1, cette barrière étant locale à l’équipement sensible 3 améliorant ainsi sa protection. According to the alternative embodiment of FIG. 5, the movement of the vehicle going from right to left of FIG. 5, the protuberance 4, 5, 6, 7 extends transversely to the vehicle, advantageously over the entire width of the deflector 2. Thus all the ribs 7 and the recesses 4, 5, 6 form a protective barrier tight against gravel, but also against the projection of water, mud, or snow, likely to interfere between the deflector 2 and the base 1, this barrier being local to the sensitive equipment 3 thus improving its protection.
Le bloc batterie 1 fait partie d’un dispositif de stockage d’énergie, l’équipement sensible 3 au choc étant un équipement du dispositif de stockage parmi une conduite hydraulique, un faisceau électrique, le connecteur fluidique 3 ou électrique, un capteur, un boîtier électronique.  The battery pack 1 is part of an energy storage device, the shock-sensitive equipment 3 being an equipment of the storage device among a hydraulic line, an electrical harness, the fluidic or electrical connector 3, a sensor, a electric case.
Le véhicule est avantageusement un véhicule à propulsion électrique ou hybride, par exemple un véhicule hybride ayant une machine de propulsion thermique couplée en série ou en parallèle à une machine de propulsion électrique.  The vehicle is advantageously an electric or hybrid propulsion vehicle, for example a hybrid vehicle having a thermal propulsion machine coupled in series or in parallel to an electric propulsion machine.

Claims

REVENDICATIONS
1. Véhicule automobile comprenant un soubassement (1) et un déflecteur (2) formant un carénage (12) aérodynamique du soubassement (1), ce soubassement (1) comprenant un équipement sensible (3) au choc, caractérisé en ce que le déflecteur (2) comprend une protubérance (4, 5, 6, 7) présentant une surface en contact (8) correspondant à un ensemble de points en contact avec le soubassement (1), la distance minimale (Dmin) entre la périphérie1. Motor vehicle comprising a base (1) and a deflector (2) forming an aerodynamic fairing (12) of the base (1), this base (1) comprising an equipment sensitive (3) to impact, characterized in that the deflector (2) includes a protrusion (4, 5, 6, 7) having a contact surface (8) corresponding to a set of points in contact with the base (1), the minimum distance (D m in) between the periphery
(9) de cette surface (8) et cet équipement sensible (3) n’excédant pas 40 mm, préférentiellement 20 mm. (9) of this surface (8) and this sensitive equipment (3) not exceeding 40 mm, preferably 20 mm.
2. Véhicule automobile selon la revendication 1, caractérisé en ce que la protubérance (4, 5, 6, 7) est un enfoncement (4, 5, 6) du déflecteur (2), notamment un emboutis, constitué d’un fond 2. Motor vehicle according to claim 1, characterized in that the protuberance (4, 5, 6, 7) is a recess (4, 5, 6) of the deflector (2), in particular a stamped, consisting of a bottom
(10) et d’une paroi périphérique (11), le fond (10) étant la surface (8) en contact avec le soubassement (1). (10) and a peripheral wall (11), the bottom (10) being the surface (8) in contact with the base (1).
3. Véhicule automobile selon la revendication précédente, caractérisé en ce que la paroi périphérique (11) au plus près de l’équipement sensible (3) est orthogonale au carénage (12). 3. Motor vehicle according to the preceding claim, characterized in that the peripheral wall (11) closest to the sensitive equipment (3) is orthogonal to the fairing (12).
4. Véhicule selon l’une des revendications précédentes, caractérisé en ce que la surface en contact (8) avec le soubassement (1) comprend un moyen de fixation (13) du déflecteur sur le soubassement, notamment un trou de passage d’une vis ou d’un clip. 4. Vehicle according to one of the preceding claims, characterized in that the surface in contact (8) with the base (1) comprises a fixing means (13) of the deflector on the base, in particular a through hole of a screw or clip.
5. Véhicule selon l’une des revendications précédentes, caractérisé en ce que la surface en contact (8) encercle partiellement ou totalement l’équipement sensible (3).  5. Vehicle according to one of the preceding claims, characterized in that the contacting surface (8) partially or completely encircles the sensitive equipment (3).
6. Véhicule selon l’une des revendications précédentes, caractérisé en ce que le soubassement (1) comprend un amortisseur (14) de vibrations au droit de la surface en contact (8).  6. Vehicle according to one of the preceding claims, characterized in that the base (1) comprises a vibration damper (14) in line with the contact surface (8).
7. Véhicule selon la revendication précédente, caractérisé en ce que l’élément amortisseur (14) est un textile, notamment une feutrine.  7. Vehicle according to the preceding claim, characterized in that the damping element (14) is a textile, in particular a felt.
8. Véhicule selon la revendication précédente, caractérisé en ce que le textile est collé sur le déflecteur (2).  8. Vehicle according to the preceding claim, characterized in that the textile is glued to the deflector (2).
9. Véhicule selon l’une des revendications précédentes, caractérisé en ce que le soubassement (1) comprend un dispositif de stockage d’énergie, l’équipement sensible (3) au choc étant un équipement du dispositif de stockage parmi une conduite hydraulique, un faisceau électrique, un connecteur fluidique (3) ou électrique, un capteur, un boîtier électronique.  9. Vehicle according to one of the preceding claims, characterized in that the base (1) comprises an energy storage device, the shock-sensitive equipment (3) being an equipment of the storage device among a hydraulic line, an electrical harness, a fluidic or electrical connector (3), a sensor, an electronic unit.
10. Véhicule selon la revendication précédente, caractérisé en ce que le dispositif de stockage d’énergie est un bloc batterie de traction d’un véhicule électrique ou hybride.  10. Vehicle according to the preceding claim, characterized in that the energy storage device is a traction battery unit of an electric or hybrid vehicle.
EP19823785.1A 2018-11-07 2019-10-08 Motor vehicle comprising an impact protection deflector Pending EP3877242A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1871381A FR3088052B1 (en) 2018-11-07 2018-11-07 MOTOR VEHICLE INCLUDING AN IMPACT PROTECTION DEFLECTOR.
PCT/FR2019/052379 WO2020094931A1 (en) 2018-11-07 2019-10-08 Motor vehicle comprising an impact protection deflector

Publications (1)

Publication Number Publication Date
EP3877242A1 true EP3877242A1 (en) 2021-09-15

Family

ID=65951705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19823785.1A Pending EP3877242A1 (en) 2018-11-07 2019-10-08 Motor vehicle comprising an impact protection deflector

Country Status (4)

Country Link
EP (1) EP3877242A1 (en)
CN (1) CN112955371B (en)
FR (1) FR3088052B1 (en)
WO (1) WO2020094931A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3125002B1 (en) * 2021-07-09 2024-08-09 Psa Automobiles Sa PROTECTIVE DEFLECTOR FOR A VEHICLE BATTERY BOX, SUITABLE FOR PROTECTING PROTECTIVE CONNECTOR(S)
FR3133808A1 (en) * 2022-03-23 2023-09-29 Psa Automobiles Sa MOTOR VEHICLE INCLUDING AN AIR SCREEN FOR A TRACTION BATTERY
FR3135692B1 (en) 2022-05-20 2024-09-27 Psa Automobiles Sa Motor vehicle comprising an underbody structure with a deflector.

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FR2864008B1 (en) * 2003-12-22 2007-04-13 Cera SUB-CAST MODULE PROVIDING CONTINUITY BETWEEN THE LOWER FACES OF A DEFLECTOR AND A TANK
JP4858183B2 (en) * 2007-01-22 2012-01-18 日産自動車株式会社 Lower body structure
FR2950852B1 (en) * 2009-10-06 2011-12-16 Renault Sa DEVICE FOR PROTECTING THE SHOCK OF AN AUTOMOTIVE VEHICLE MEMBER MOUNTED UNDER CAISSE
DE102010033332A1 (en) 2010-08-04 2012-02-09 Audi Ag Substructure structure for a motor vehicle
DE102012203892A1 (en) * 2012-03-13 2013-09-19 Bayerische Motoren Werke Aktiengesellschaft Motor vehicle, particularly passenger motor vehicle, has energy storage that is centrally attached to lower side of floor structure, where energy storage is supporting autobody component and comprises supporting housing
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Also Published As

Publication number Publication date
FR3088052B1 (en) 2020-10-23
CN112955371A (en) 2021-06-11
CN112955371B (en) 2023-09-29
FR3088052A1 (en) 2020-05-08
WO2020094931A1 (en) 2020-05-14

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