WO2018122480A1 - Front structural frame for motor vehicle - Google Patents
Front structural frame for motor vehicle Download PDFInfo
- Publication number
- WO2018122480A1 WO2018122480A1 PCT/FR2017/053406 FR2017053406W WO2018122480A1 WO 2018122480 A1 WO2018122480 A1 WO 2018122480A1 FR 2017053406 W FR2017053406 W FR 2017053406W WO 2018122480 A1 WO2018122480 A1 WO 2018122480A1
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- WO
- WIPO (PCT)
- Prior art keywords
- longitudinal beam
- structural frame
- front structural
- central portion
- upper longitudinal
- 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.)
- Ceased
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
- B60R19/12—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement vertically spaced
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/52—Radiator or grille guards ; Radiator grilles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/186—Additional energy absorbing means supported on bumber beams, e.g. cellular structures or material
Definitions
- the present invention relates to the field of motor vehicles.
- the invention relates to the front blocks for motor vehicles.
- front blocks for motor vehicles consisting of a bumper, a front panel, also called “front technical front”, on which the bumper and other elements (cooling system, lighting system, etc.. ) are fixed, and an energy absorption system.
- This energy absorption system comprises at least one shock beam, generally called “high impact beam” or upper shock beam, which is positioned behind the front face and which connects the vehicle side members.
- the final position of the high beam is the final position of the high beam, such a position being determined by the arrangement of the longitudinal members of the vehicle.
- the high beam is usually located at the air intake of the vehicle, materialized by the openings of the front face and bumper, which makes it visible by a user who is outside the vehicle.
- the shock beam obstructs a portion of the passage that borrows air entering the vehicle and therefore can not flow optimally. Therefore, elements that need to be in contact with the incoming air, for example the radiator, must be positioned further back, thus preventing any possibility of reducing the length of this part of the vehicle.
- the energy absorbing system must comply with the current regulations of type approval and consumerism, as well as the specifications of car manufacturers, so that its dimensions are now standardized (length, height, depth) .
- the overall appearance of the system is imposed by the style of the vehicle and the impact protection requirements for pedestrians.
- the position of the front face and the distance that separates it from the high beam are also standardized.
- front blocks such as those described in the application FR2911557.
- the front blocks made according to this known solution certainly make it possible to make the high beam invisible from the outside but at the expense of a reduction of the air-accessible entrance surface through which the air can enter and flow into the vehicle.
- the known solutions do not offer front blocks for a motor vehicle to both meet the aeraulic and aesthetic disadvantages, while remaining affordable and simple to manufacture.
- the invention aims to overcome these disadvantages by providing a structural front frame for a motor vehicle.
- This front structural frame comprises an upper longitudinal beam intended to be positioned above a plane defined by the longitudinal members of the vehicle, a lower longitudinal beam and a central part arranged to connect the upper longitudinal beam and the lower longitudinal beam. one to the other, the upper longitudinal beam, the lower longitudinal beam and the central portion defining at least one through opening, the front structural frame comprising shock absorption means adapted to transmit forces under the opening through to the structural framework before.
- the front structural frame may further comprise one or more of the following features, taken alone or in combination:
- the shock absorption means are capable of damping the forces experienced within the through opening towards the front structural frame;
- the shock absorbing means comprise connecting elements of two edges of the front structural frame;
- the connecting elements are chosen alone or in combination from the group consisting of: V-shaped, L-shaped, H-shaped and / or U-shaped, hollow sections with square, rectangular or circular sections, solid sections with square sections, rectangular sections or circular, ropes;
- the connecting elements connect the upper longitudinal beam and the lower longitudinal beam one to the other;
- the shock absorbing means comprise a support for fixing the connecting elements adapted to be fixed to the upper longitudinal beam, the lower longitudinal beam and / or the central portion;
- the connecting elements are made from metal wires or bars or composite rods;
- the central portion is integral with the upper longitudinal beam and / or lower longitudinal beam;
- the upper longitudinal beam and / or the lower longitudinal beam constitute structural inserts of the front structural frame and the central part connects them by a plastic injection method;
- the through opening is of rounded shape, preferably of ob
- the invention also relates to an assembly consisting of a bumper and a front structural frame according to the invention, wherein the bumper has at least one opening of which at least a portion is opposite the through opening of the structural framework before.
- the upper longitudinal beam and the lower longitudinal beam are not located opposite the opening of the bumper.
- the invention also relates to a vehicle comprising an assembly according to the invention.
- FIG. 1 is a diagram illustrating an exploded view of a front structural frame according to a first embodiment of the invention
- FIG. 2 is a diagram illustrating an exploded view of a front structural frame according to a second embodiment of the invention
- FIGS. 3A to 3B schematically illustrate different meshes of connecting elements
- FIG. 4 is a diagram of a half of an assembly consisting of a bumper and a front structural frame according to the first embodiment, seen from above.
- This structural frame before 1 for a motor vehicle (of which only the front part is visible in Figures 1, 2 and 4).
- This structural frame before 1 comprises an upper longitudinal beam 101, intended to be positioned above a plane defined by the longitudinal members 2 of the vehicle, a lower longitudinal beam 102 and a central portion 103 arranged to connect one to the other.
- the front structural frame 1 comprising shock absorbing means 104 capable of transmitting efforts within the opening through to the structural framework before 1.
- the upper longitudinal beam 101 and the lower longitudinal beam 102 are profiles made by pultrusion. These profiles subsequently serve structural inserts during the production of the central portion 103 by a plastic injection process and in which the shock absorbing means 104 comprise connecting elements 105 formed by ropes 105. Ropes 105 connect the upper longitudinal beam 101 and the lower longitudinal beam 102 to each other.
- the upper longitudinal beam 101 and the lower longitudinal beam 102 may for example be stamped metal profiles or extruded profiles. They can also be integral with the central portion 103.
- the connecting elements 105 of the shock absorbing means 104 may also be hollow or solid profiles of various geometric shapes.
- Figures 1 and 2 show integrated elements within the structural frame before 1.
- Such elements are optical supports 3 extending on either side of the upper longitudinal beam 101, a radiator 4 positioned closest to the structural frame before 1, hood closure means 13, a radar 5 positioned on the lower longitudinal beam 102, shock absorber 6 (crash boxes), one end of which is molded directly against the central portion 103 (as shown in FIG. 4), post-shock retaining blades 7 extending from the structural frame before 1 until to the side members 2 and ventilation flaps 8 located in the through opening of the front structural frame 1.
- the structural frame before 1 offers the possibility to gather and support multiple elements and functionalities of the front part of a motor vehicle.
- these items can be in one of three groups:
- shock function a shock absorber / crash box, absorber for pedestrian shocks (leg shock and hip shock).
- an optical block an optical block, a radiator, sensors, a radar, means of closing of hood or a tank of liquid ...
- the structural frame before 1 of the invention it is possible to reduce the distance separating it from the radiator 4 because the upper longitudinal beam 101 does not disturb the flow of air entering the through opening which can then flow directly onto the radiator 4.
- the entrance surface of the through opening is also not affected by the position of the upper longitudinal beam 101. Therefore, the circulation of the flow of air entering this the front part of the vehicle can be adapted, in particular according to the speed cycle of the vehicle and the need to cool certain elements, by controlling the inclination of the ventilation flaps 8.
- the structural frame before 1 of the invention can even integrate the radiator 4, as shown in Figure 4, with fasteners (not shown).
- the shock absorption means 104 of the front structural frame 1 comprise ropes 105 connecting the upper longitudinal beam 101 and the lower longitudinal beam 102 to each other. These ropes 105 are distributed in the through opening according to the mesh shown in FIG. 3A and make it possible to transfer the forces undergone within the through opening, for example during an impact with a pedestrian or against a rim, towards the structural frame before 1, through the upper longitudinal beam 101 and the lower longitudinal beam 102.
- FIGS. 3B and 3C Other grid meshes 105 are conceivable, such as those shown in FIGS. 3B and 3C, and can be used depending on the elements of the structural frame before 1 by which the transfer of the forces undergone is desired.
- the mesh 3C allows a more homogeneous distribution of the forces undergone within the whole of the structural framework before 1.
- the central portion 103 may be subjected to greater forces, which may risk accelerating its deterioration relative to a central portion 103 of Figures 1, 2 and 3A, if no precautions are taken.
- FIG. 1 shows a front structural frame 1 according to a first embodiment of the invention, in which the central portion 103 comprises two horizontal beams 106 each extending in an opposite direction of the through opening. These horizontal beams stiffen the central portion 103 without impacting the entrance surface accessible to the air. Such a central portion 103 with two horizontal beams, also shown in Figures 3A-3C and 4, can thus cash out greater efforts. Therefore, a more homogenized transmission, throughout the structural framework before 1, the forces experienced within the through opening is possible. In addition, this extension of the central portion 103 by two horizontal beams 106 is structural because it absorbs the energy of impacts of the barrier-type shock insurance or parking shock.
- FIG. 2 shows a structural frame before 1 according to a second embodiment of the invention, in which the central portion 103 of the front structural frame 1 made according to this second embodiment is devoid of horizontal beams 106.
- the central portion 103 comprises two extensions 107 (only one of which is visible) forming a secondary frame sized to accommodate other elements such as a liquid reservoir 9, a secondary radiator 10 and a block 11 to promote the taking air.
- These elements can also be implemented on a structural frame before 1 according to the first embodiment.
- the central portion may comprise both the horizontal beams and the extensions for the integration of the components.
- FIG. 4 shows an assembly 200 composed of a bumper 12 and a structural frame before 1 according to the first embodiment.
- the bumper 12 is fixed on the outer face of the structural frame before 1 through fastening means (not shown).
- the bumper 12 and the structural frame before 1 can also be separated by a shock absorbing coating 6 (not shown), which can be of foam type and able to cash part of the forces suffered during an impact.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Cadre structurel avant pour véhicule automobile Front structural frame for a motor vehicle
La présente invention concerne le domaine des véhicules automobiles. En particulier, l'invention concerne les blocs avant pour véhicules automobiles. The present invention relates to the field of motor vehicles. In particular, the invention relates to the front blocks for motor vehicles.
Il est connu des blocs avant pour véhicules automobiles composés d'un parechoc, d'une face avant, également appelée « façade avant technique », sur laquelle le parechoc et d'autres éléments (système de refroidissement, système d'éclairage, etc.) sont fixés, et d'un système d'absorption d'énergie. Ce système d'absorption d'énergie comprend au moins une poutre choc, généralement appelée « poutre choc haute » ou poutre choc supérieure », qui est positionnée derrière la face avant et qui relie les longerons du véhicule. It is known front blocks for motor vehicles consisting of a bumper, a front panel, also called "front technical front", on which the bumper and other elements (cooling system, lighting system, etc.. ) are fixed, and an energy absorption system. This energy absorption system comprises at least one shock beam, generally called "high impact beam" or upper shock beam, which is positioned behind the front face and which connects the vehicle side members.
Un des inconvénients d'une telle configuration est la position finale de la poutre haute, une telle position étant déterminée par l'agencement des longerons du véhicule. En effet, la poutre haute se retrouve généralement positionnée au niveau de l'entrée d'air du véhicule, matérialisée par les ouvertures de la face avant et du parechoc, ce qui la rend visible par un utilisateur qui se trouve à l'extérieur du véhicule. De plus, la poutre choc obstrue une partie du passage qu'emprunte l'air qui pénètre dans le véhicule et qui ne peut donc pas s'écouler de manière optimisée. Par conséquent, des éléments qui nécessitent d'être en contact avec l'air entrant, par exemple le radiateur, doivent positionnés plus en retrait, interdisant de ce fait toute possibilité de réduire la longueur de cette partie du véhicule. One of the drawbacks of such a configuration is the final position of the high beam, such a position being determined by the arrangement of the longitudinal members of the vehicle. Indeed, the high beam is usually located at the air intake of the vehicle, materialized by the openings of the front face and bumper, which makes it visible by a user who is outside the vehicle. In addition, the shock beam obstructs a portion of the passage that borrows air entering the vehicle and therefore can not flow optimally. Therefore, elements that need to be in contact with the incoming air, for example the radiator, must be positioned further back, thus preventing any possibility of reducing the length of this part of the vehicle.
En outre, le système d'absorption d'énergie doit répondre aux réglementations en vigueur de type homologation et consuméristes, ainsi qu'aux spécifications des constructeurs automobiles, de telle sorte que ses dimensions sont aujourd'hui standardisées (longueur, hauteur, profondeur). De plus, l'aspect général du système quant à lui, est imposé par le style du véhicule et les exigences de protection des chocs pour les piétons. Enfin, pour des questions de limitation des coûts des opérations de réparation, la position de la face avant et la distance qui la sépare de la poutre haute sont elles aussi standardisées. In addition, the energy absorbing system must comply with the current regulations of type approval and consumerism, as well as the specifications of car manufacturers, so that its dimensions are now standardized (length, height, depth) . In addition, the overall appearance of the system is imposed by the style of the vehicle and the impact protection requirements for pedestrians. Finally, for reasons of cost limitation of repair operations, the position of the front face and the distance that separates it from the high beam are also standardized.
Autrement dit, il est très compliqué de modifier le système d'absorption d'énergie, et par extension la poutre haute, tant dans sa forme que dans son agencement vis-à-vis des autres éléments du bloc avant et/ou d'éléments d'autre parties du véhicule situées à proximité. In other words, it is very complicated to modify the energy absorption system, and by extension the high beam, both in its shape and in its arrangement vis-à-vis the other elements of the front block and / or elements other parts of the vehicle located nearby.
Afin de tenter de remédier à de tels inconvénients, il a été proposé des blocs avant tels que ceux décrits dans la demande FR2911557. Les blocs avant réalisés selon cette solution connue permettent certes de rendre la poutre haute invisible de l'extérieur mais au détriment d'une réduction de la surface d'entrée accessible à l'air et par laquelle l'air peut entrer et s'écouler dans le véhicule. In order to try to remedy such drawbacks, it has been proposed front blocks such as those described in the application FR2911557. The front blocks made according to this known solution certainly make it possible to make the high beam invisible from the outside but at the expense of a reduction of the air-accessible entrance surface through which the air can enter and flow into the vehicle.
Une autre solution, décrite dans la demande de brevets FR2943595, consiste à combiner la face avant et la poutre choc haute, cette dernière étant double et étant positionnée au niveau de la paire de longerons supérieurs. La poutre choc haute double comprend deux traverses espacées verticalement qui s'étendent dans l'ouverture et ne permettent pas un écoulement d'air et optimisé. De plus, la réalisation d'une telle poutre haute double est compliquée et donc plus onéreuse. Another solution, described in the patent application FR2943595, consists in combining the front face and the high impact beam, the latter being double and positioned at the pair of upper longitudinal members. The double high impact beam includes two vertically spaced cross members that extend into the opening and do not allow for optimized air flow. In addition, the realization of such a double high beam is complicated and therefore more expensive.
En résumé, les solutions connues ne proposent pas de blocs avant pour véhicule automobile permettant à la fois de répondre aux inconvénients aérauliques et esthétiques, tout en restant abordable et simple à fabriquer. In summary, the known solutions do not offer front blocks for a motor vehicle to both meet the aeraulic and aesthetic disadvantages, while remaining affordable and simple to manufacture.
L'invention a pour but de remédier à ces inconvénients en fournissant un cadre structurel avant pour véhicule automobile. Ce cadre structurel avant comprend une poutre longitudinale supérieure, destinée à être positionnée au-dessus d'un plan défini par les longerons du véhicule, une poutre longitudinale inférieure et une partie centrale agencée pour relier la poutre longitudinale supérieure et la poutre longitudinale inférieure l'une à l'autre, la poutre longitudinale supérieure, la poutre longitudinale inférieure et la partie centrale délimitant au moins une ouverture traversante, le cadre structurel avant comprenant des moyens d'absorption de chocs aptes à transmettre des efforts subis au sein de l'ouverture traversante vers le cadre structurel avant. The invention aims to overcome these disadvantages by providing a structural front frame for a motor vehicle. This front structural frame comprises an upper longitudinal beam intended to be positioned above a plane defined by the longitudinal members of the vehicle, a lower longitudinal beam and a central part arranged to connect the upper longitudinal beam and the lower longitudinal beam. one to the other, the upper longitudinal beam, the lower longitudinal beam and the central portion defining at least one through opening, the front structural frame comprising shock absorption means adapted to transmit forces under the opening through to the structural framework before.
Le cadre structurel avant peut en outre comporter l'une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison : The front structural frame may further comprise one or more of the following features, taken alone or in combination:
les moyens d'absorption de chocs sont aptes à amortir les efforts subis au sein de l'ouverture traversante vers le cadre structurel avant ; les moyens d'absorption de chocs comprennent des éléments de liaison de deux bords du cadre structurel avant ; les éléments de liaison sont choisis seul ou en combinaison parmi le groupe constitué de : profilés en V, en L, en H et/ou en U, des profilés creux à sections carrées, rectangulaires ou circulaires, profilés pleins à sections carrées, rectangulaires ou circulaires, cordes ; - les éléments de liaison relient la poutre longitudinale supérieure et la poutre longitudinale inférieure l'une à l'autre ; les moyens d'absorption de chocs comprennent un support de fixation des éléments de liaison apte à être fixé à la poutre longitudinale supérieure, la poutre longitudinale inférieure et/ou la partie centrale ; les éléments de liaison sont réalisés à partir de fils ou barre métalliques ou de joncs composite ; la partie centrale est venue de matière avec la poutre longitudinale supérieure et/ou poutre longitudinale inférieure ; - la poutre longitudinale supérieure et/ou la poutre longitudinale inférieure constituent des inserts structuraux du cadre structurel avant et la partie centrale les relie par un procédé d'injection plastique ; l'ouverture traversante est de forme arrondie, de préférence de forme oblongue ; la partie centrale comprend au moins une poutre horizontale s'entendant en direction opposée de l'ouverture traversante ; la poutre longitudinale supérieure et/ou poutre longitudinale inférieure sont des profilés obtenus par pultrusion, des profilés métalliques emboutis, des profilés extrudés ou des profilés hydroformés ; le cadre structurel avant comprend au moins un support ou moyens de couplage pour l'intégration d'un ou plusieurs éléments choisis parmi le groupe composé de : un absorbeur de chocs/crash box, absorbeur pour les chocs piétons, des guides d'air, un volet piloté actif, un convergent sous véhicule, un bloc optique, un radiateur, des capteurs, un radar, des moyens de fermeture de capot ou un réservoir de liquide ; l'absorbeur de chocs/crash box est moulé ou venu de matière avec la poutre longitudinale supérieure, la poutre longitudinale inférieure et/ou la partie centrale ; le cadre structurel avant comprend un revêtement absorbeur de chocs ; le cadre structurel avant comprend des moyens de fixation de parechoc. the shock absorption means are capable of damping the forces experienced within the through opening towards the front structural frame; the shock absorbing means comprise connecting elements of two edges of the front structural frame; the connecting elements are chosen alone or in combination from the group consisting of: V-shaped, L-shaped, H-shaped and / or U-shaped, hollow sections with square, rectangular or circular sections, solid sections with square sections, rectangular sections or circular, ropes; the connecting elements connect the upper longitudinal beam and the lower longitudinal beam one to the other; the shock absorbing means comprise a support for fixing the connecting elements adapted to be fixed to the upper longitudinal beam, the lower longitudinal beam and / or the central portion; the connecting elements are made from metal wires or bars or composite rods; the central portion is integral with the upper longitudinal beam and / or lower longitudinal beam; the upper longitudinal beam and / or the lower longitudinal beam constitute structural inserts of the front structural frame and the central part connects them by a plastic injection method; the through opening is of rounded shape, preferably of oblong shape; the central portion comprises at least one horizontal beam extending in the opposite direction of the through opening; the upper longitudinal beam and / or lower longitudinal beam are profiles obtained by pultrusion, stamped metal profiles, extruded profiles or hydroformed profiles; the front structural frame comprises at least one support or coupling means for the integration of one or more elements selected from the group consisting of: a shock absorber / crash box, absorber for pedestrian impacts, air guides, an active piloted flap, a convergent under vehicle, an optical block, a radiator, sensors, a radar, hood closing means or a liquid reservoir; the shock absorber / crash box is molded or integrally formed with the upper longitudinal beam, the lower longitudinal beam and / or the central portion; the front structural frame includes a shock absorbing coating; the front structural frame includes bumper attachment means.
L'invention concerne également un ensemble composé d'un pare-choc et d'un cadre structurel avant selon l'invention, dans lequel le pare-choc présente au moins une ouverture dont au moins une portion est en regard de l'ouverture traversante du cadre structurel avant. The invention also relates to an assembly consisting of a bumper and a front structural frame according to the invention, wherein the bumper has at least one opening of which at least a portion is opposite the through opening of the structural framework before.
De préférence, la poutre longitudinale supérieure et la poutre longitudinale inférieure ne sont pas situées en regard de l'ouverture du pare-choc. Preferably, the upper longitudinal beam and the lower longitudinal beam are not located opposite the opening of the bumper.
L'invention concerne également un véhicule comprenant un ensemble selon l'invention L'invention sera mieux comprise à la lecture des figures annexées, qui sont fournies à titre d'exemples et ne présentent aucun caractère limitatif, dans lesquelles : The invention also relates to a vehicle comprising an assembly according to the invention The invention will be better understood on reading the appended figures, which are provided by way of examples and are in no way limiting, in which:
- la figure 1 est un schéma illustrant en vue éclatée un cadre structurel avant selon un premier mode de réalisation de l'invention, FIG. 1 is a diagram illustrating an exploded view of a front structural frame according to a first embodiment of the invention,
- la figure 2 est un schéma illustrant en vue éclatée un cadre structurel avant selon un second mode de réalisation de l'invention, FIG. 2 is a diagram illustrating an exploded view of a front structural frame according to a second embodiment of the invention,
- les figures 3A à 3B illustrent schématiquement différents maillages d'éléments de liaison, et FIGS. 3A to 3B schematically illustrate different meshes of connecting elements, and
- la figure 4 est un schéma d'une moitié d'un ensemble composé d'un parechoc et d'un cadre structurel avant selon le premier mode de réalisation, vu de dessus. - Figure 4 is a diagram of a half of an assembly consisting of a bumper and a front structural frame according to the first embodiment, seen from above.
On va décrire en détails un cadre structurel avant 1 pour véhicule automobile (dont seule la partie avant est visible sur les figures 1 , 2 et 4). Ce cadre structurel avant 1 comprend une poutre longitudinale supérieure 101 , destinée à être positionnée au- dessus d'un plan défini par les longerons 2 du véhicule, une poutre longitudinale inférieure 102 et une partie centrale 103 agencée pour relier l'une à l'autre la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102, la poutre longitudinale supérieure 101 , la poutre longitudinale inférieure 102 et la partie centrale 103 délimitant au moins une ouverture traversante, le cadre structurel avant 1 comprenant des moyens d'absorption de chocs 104 aptes à transmettre des efforts subis au sein de l'ouverture traversante vers le cadre structurel avant 1. We will describe in detail a structural frame before 1 for a motor vehicle (of which only the front part is visible in Figures 1, 2 and 4). This structural frame before 1 comprises an upper longitudinal beam 101, intended to be positioned above a plane defined by the longitudinal members 2 of the vehicle, a lower longitudinal beam 102 and a central portion 103 arranged to connect one to the other. other the upper longitudinal beam 101 and the lower longitudinal beam 102, the upper longitudinal beam 101, the lower longitudinal beam 102 and the central portion 103 defining at least one through opening, the front structural frame 1 comprising shock absorbing means 104 capable of transmitting efforts within the opening through to the structural framework before 1.
On va décrire deux exemples particuliers de réalisation à l'aide des figures 1 et 2, dans lesquels la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102 sont des profilés réalisés par pultrusion. Ces profilés servent par la suite d'inserts structuraux lors de la réalisation de la partie centrale 103 par un procédé d'injection plastique et dans lesquels les moyens d'absorption de chocs 104 comprennent des éléments de liaison 105 formés par des cordes 105. Ces cordes 105 relient la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102 l'une à l'autre. L'invention n'est pas limitée à ce type de réalisation, la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102 peuvent par exemple être des profilés métalliques emboutis ou des profilés extrudés. Ils peuvent également être venus de matière avec la partie centrale 103. Les éléments de liaison 105 des moyens d'absorption de chocs 104 peuvent également être des profilés creux ou pleins de formes géométriques variées. Two particular embodiments are described with reference to FIGS. 1 and 2, in which the upper longitudinal beam 101 and the lower longitudinal beam 102 are profiles made by pultrusion. These profiles subsequently serve structural inserts during the production of the central portion 103 by a plastic injection process and in which the shock absorbing means 104 comprise connecting elements 105 formed by ropes 105. Ropes 105 connect the upper longitudinal beam 101 and the lower longitudinal beam 102 to each other. The invention is not limited to this type of embodiment, the upper longitudinal beam 101 and the lower longitudinal beam 102 may for example be stamped metal profiles or extruded profiles. They can also be integral with the central portion 103. The connecting elements 105 of the shock absorbing means 104 may also be hollow or solid profiles of various geometric shapes.
On a représenté sur les figures 1 et 2 des éléments intégrés au sein du cadre structurel avant 1. De tels éléments sont des supports d'optique 3 s'étendant de part et d'autre de la poutre longitudinale supérieure 101 , un radiateur 4 positionné au plus près du cadre structurel avant 1 , des moyens de fermeture de capot 13, un radar 5 positionné sur la poutre longitudinale inférieure 102, des absorbeur de chocs 6 (crash boxes) dont une extrémité est moulée directement contre la partie centrale 103 (comme représenté sur la figure 4), des lames de maintien post choc 7 s'étendant du cadre structurel avant 1 jusqu'aux longerons 2 et des volets d'aération 8 située dans l'ouverture traversante du cadre structurel avant 1 . Le cadre structurel avant 1 offre la possibilité de rassembler et supporter de multiples éléments et fonctionnalités de la partie avant d'un véhicule automobile. Figures 1 and 2 show integrated elements within the structural frame before 1. Such elements are optical supports 3 extending on either side of the upper longitudinal beam 101, a radiator 4 positioned closest to the structural frame before 1, hood closure means 13, a radar 5 positioned on the lower longitudinal beam 102, shock absorber 6 (crash boxes), one end of which is molded directly against the central portion 103 (as shown in FIG. 4), post-shock retaining blades 7 extending from the structural frame before 1 until to the side members 2 and ventilation flaps 8 located in the through opening of the front structural frame 1. The structural frame before 1 offers the possibility to gather and support multiple elements and functionalities of the front part of a motor vehicle.
Par exemple, ces éléments peuvent faire partie des trois groupes suivants : For example, these items can be in one of three groups:
- Elément en lien avec une « fonctions choc » : un absorbeur de chocs/crash box, absorbeur pour les chocs piétons (choc jambe et choc hanche). - Element in connection with a "shock function": a shock absorber / crash box, absorber for pedestrian shocks (leg shock and hip shock).
- Elément en lien avec une fonction aérodynamique : des guides d'air, un volet piloté actif, un convergent sous véhicule... - Element linked to an aerodynamic function: air guides, an active piloted flap, a convergent under vehicle ...
- Elément pour une fonction annexe : un bloc optique, un radiateur, des capteurs, un radar, des moyens de fermeture de capot ou un réservoir de liquide... - Element for an auxiliary function: an optical block, a radiator, sensors, a radar, means of closing of hood or a tank of liquid ...
Grâce au cadre structurel avant 1 de l'invention, il est possible de réduire la distance qui le sépare du radiateur 4 car la poutre longitudinale supérieure 101 ne dérange pas l'écoulement de l'air entrant dans l'ouverture traversante qui peut dès lors s'écouler directement sur le radiateur 4. La surface d'entrée de l'ouverture traversante n'est pas non plus impactée par la position de la poutre longitudinale supérieure 101. Dès lors, la circulation du flux de l'air entrant dans cette partie avant du véhicule peut être adaptée, notamment en fonction du cycle de vitesse du véhicule et de la nécessité de refroidir certain éléments, en pilotant l'inclinaison des volets d'aération 8. Le cadre structurel avant 1 de l'invention peut même intégrer le radiateur 4, comme représenté en figure 4, grâce à des fixations (non représentées). Thanks to the structural frame before 1 of the invention, it is possible to reduce the distance separating it from the radiator 4 because the upper longitudinal beam 101 does not disturb the flow of air entering the through opening which can then flow directly onto the radiator 4. The entrance surface of the through opening is also not affected by the position of the upper longitudinal beam 101. Therefore, the circulation of the flow of air entering this the front part of the vehicle can be adapted, in particular according to the speed cycle of the vehicle and the need to cool certain elements, by controlling the inclination of the ventilation flaps 8. The structural frame before 1 of the invention can even integrate the radiator 4, as shown in Figure 4, with fasteners (not shown).
Les moyens d'absorption de chocs 104 du cadre structurel avant 1 comprennent des cordes 105 reliant la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102 l'une à l'autre. Ces cordes 105 sont réparties dans l'ouverture traversante selon le maillage représenté à la figure 3A et permettent de transférer les efforts subis au sein de l'ouverture traversante, par exemple lors d'un choc avec un piéton ou contre un rebord, vers le cadre structurel avant 1 , par l'intermédiaire de la poutre longitudinale supérieure 101 et la poutre longitudinale inférieure 102. The shock absorption means 104 of the front structural frame 1 comprise ropes 105 connecting the upper longitudinal beam 101 and the lower longitudinal beam 102 to each other. These ropes 105 are distributed in the through opening according to the mesh shown in FIG. 3A and make it possible to transfer the forces undergone within the through opening, for example during an impact with a pedestrian or against a rim, towards the structural frame before 1, through the upper longitudinal beam 101 and the lower longitudinal beam 102.
D'autres maillages de cordes 105 sont envisageables, tels que ceux représentés aux figures 3B et 3C, et peuvent être utilisés en fonction des éléments du cadre structurel avant 1 par lesquels le transfert des efforts subis est souhaité. Par exemple, le maillage représenté sur la figure 3C permet une répartition des forces subis plus homogène au sein de l'ensemble du cadre structurel avant 1 . En contrepartie, la partie centrale 103 peut être soumise à des forces plus importantes, ce qui peut risquer d'accélérer sa détérioration par rapport à une partie centrale 103 des figures 1 , 2 et 3A, si aucune précaution n'est prise. Other grid meshes 105 are conceivable, such as those shown in FIGS. 3B and 3C, and can be used depending on the elements of the structural frame before 1 by which the transfer of the forces undergone is desired. For example, the mesh 3C allows a more homogeneous distribution of the forces undergone within the whole of the structural framework before 1. In return, the central portion 103 may be subjected to greater forces, which may risk accelerating its deterioration relative to a central portion 103 of Figures 1, 2 and 3A, if no precautions are taken.
On a représenté sur la figure 1 un cadre structurel avant 1 selon un premier mode de réalisation de l'invention, dans lequel la partie centrale 103 comprend deux poutres horizontales 106 s'entendant chacune dans une direction opposée de l'ouverture traversante. Ces poutre horizontales permettent de rigidifier la partie centrale 103 sans impacter la surface d'entrée accessible à l'air. Une telle partie centrale 103 avec deux poutres horizontales, également représentée sur les figures 3A-3C et 4, peut ainsi encaisser des efforts plus importants. Par conséquent, une transmission plus homogénéisée, dans l'ensemble du cadre structurel avant 1 , des efforts subis au sein de l'ouverture traversante est possible. De plus, cette extension de la partie centrale 103 par deux poutres horizontales 106 est structurelle car elle absorbe l'énergie des impacts de type barrière choc assurance ou choc parking. FIG. 1 shows a front structural frame 1 according to a first embodiment of the invention, in which the central portion 103 comprises two horizontal beams 106 each extending in an opposite direction of the through opening. These horizontal beams stiffen the central portion 103 without impacting the entrance surface accessible to the air. Such a central portion 103 with two horizontal beams, also shown in Figures 3A-3C and 4, can thus cash out greater efforts. Therefore, a more homogenized transmission, throughout the structural framework before 1, the forces experienced within the through opening is possible. In addition, this extension of the central portion 103 by two horizontal beams 106 is structural because it absorbs the energy of impacts of the barrier-type shock insurance or parking shock.
On a représenté sur la figure 2 un cadre structurel avant 1 selon un second mode de réalisation de l'invention, dans lequel la partie centrale 103 du cadre structurel avant 1 réalisé selon ce second mode de réalisation est dépourvue de poutres horizontales 106. En contrepartie, la partie centrale 103 comprend deux extensions 107 (dont une seule est visible) formant un cadre secondaire dimensionné pour l'accueil d'autres éléments tels qu'un réservoir de liquide 9, un radiateur secondaire 10 et un bloc 11 pour favoriser la prise d'air. Ces éléments peuvent également implémentés sur un cadre structurel avant 1 selon le premier mode de réalisation. FIG. 2 shows a structural frame before 1 according to a second embodiment of the invention, in which the central portion 103 of the front structural frame 1 made according to this second embodiment is devoid of horizontal beams 106. , the central portion 103 comprises two extensions 107 (only one of which is visible) forming a secondary frame sized to accommodate other elements such as a liquid reservoir 9, a secondary radiator 10 and a block 11 to promote the taking air. These elements can also be implemented on a structural frame before 1 according to the first embodiment.
Dans un mode de réalisation non représenté, la partie centrale peut comprendre à la fois les poutres horizontales et les extensions pour l'intégration des composants. In a not shown embodiment, the central portion may comprise both the horizontal beams and the extensions for the integration of the components.
On a représenté en figure 4 un ensemble 200 composé d'un parechoc 12 et d'un cadre structurel avant 1 selon le premier mode de réalisation. Le parechoc 12 est fixé sur la face extérieure du cadre structurel avant 1 grâce à des moyens de fixation (non représentés). Le parechoc 12 et le cadre structurel avant 1 peuvent également être séparés par un revêtement absorbeur de chocs 6 (non représenté), pouvant être de type mousse et apte à encaisser une partie des efforts subis lors d'un impact. FIG. 4 shows an assembly 200 composed of a bumper 12 and a structural frame before 1 according to the first embodiment. The bumper 12 is fixed on the outer face of the structural frame before 1 through fastening means (not shown). The bumper 12 and the structural frame before 1 can also be separated by a shock absorbing coating 6 (not shown), which can be of foam type and able to cash part of the forces suffered during an impact.
Référence Objet désigné Reference Designated Object
1 . . . Cadre structurel avant 1. . . Front structural frame
2 Longerons 2 Frame rails
3 Supports d'optique 4 ... Radiateur 3 Optical mounts 4 ... Radiator
5 ... Radar 5 ... Radar
6 ... Absorbeur de chocs 6 ... Shock Absorber
7 ... Lames de maintien post choc 7 ... Post shock holding blades
8 ... Volets d'aération 8 ... Ventilation shutters
9 ... Réservoir de liquide 9 ... Liquid tank
10 ... Radiateur secondaire 10 ... Secondary radiator
11 ... Bloc 11 ... Block
12 ... Parechoc 12 ... Bumper
13 ... Moyens de fermeture de capot 13 ... Means of closing hood
101 ... Poutre longitudinale supérieure 101 ... Upper longitudinal beam
102 ... Poutre longitudinale inférieure 102 ... Lower longitudinal beam
103 ... Partie centrale 103 ... Central part
104 ... Moyens d'absorption de chocs 104 ... Means of shock absorption
105 ... Éléments de liaison ; Cordes 105 ... connecting elements; ropes
106 ... Poutres horizontales 106 ... Horizontal beams
107 ... Extensions 107 ... Extensions
200 ... Ensemble composé d'un parechoc et d'un cadre structurel 200 ... Set consisting of a bumper and a structural frame
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17816993.4A EP3562713A1 (en) | 2016-12-28 | 2017-12-06 | Front structural frame for motor vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1663447 | 2016-12-28 | ||
| FR1663447A FR3061101B1 (en) | 2016-12-28 | 2016-12-28 | FRONT STRUCTURAL FRAME FOR MOTOR VEHICLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018122480A1 true WO2018122480A1 (en) | 2018-07-05 |
Family
ID=58401813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2017/053406 Ceased WO2018122480A1 (en) | 2016-12-28 | 2017-12-06 | Front structural frame for motor vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3562713A1 (en) |
| FR (1) | FR3061101B1 (en) |
| MA (1) | MA47154A (en) |
| WO (1) | WO2018122480A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654998A (en) * | 2020-12-23 | 2022-06-24 | 广州法雷奥发动机冷却有限公司 | A vehicle front-end module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3087402B1 (en) * | 2018-10-18 | 2020-10-30 | Plastic Omnium Cie | BUMPER REINFORCEMENT INTENDED TO BE INTEGRATED IN A VEHICLE FRONT BLOCK INCLUDING A PLATE SUPPORTING SENSORS |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2805504A1 (en) * | 2000-02-24 | 2001-08-31 | Valeo Thermique Moteur Sa | Forward face, of motor vehicle, is produced by plastic moulding, and has energy absorbing devices to act as mountings for beam of bumper |
| US6874831B1 (en) * | 2000-07-06 | 2005-04-05 | Compagnie Plastic Omnium | Front structure for a motor vehicle |
| FR2895341A1 (en) * | 2005-12-23 | 2007-06-29 | Plastic Omnium Cie | ENERGY ABSORPTION SYSTEM FOR A MOTOR VEHICLE |
| FR2911557A1 (en) | 2007-01-23 | 2008-07-25 | Plastic Omnium Cie | Frontal impact e.g. insurance type impact, absorption module for motor vehicle, has lower transversal beam and abutment connecting upper transversal element and beam to form frame e.g. absorber frame, and central reinforcement |
| FR2927033A1 (en) * | 2008-02-05 | 2009-08-07 | Peugeot Citroen Automobiles Sa | Energy absorbing beam for front bumper of motor vehicle, has cross-piece including holes extending longitudinally along direction of absorbers and forming air inlet grill of front bumper, where absorbers are arranged at ends of cross-piece |
| FR2943595A1 (en) | 2009-03-26 | 2010-10-01 | Faurecia Bloc Avant | FRONT VEHICLE ASSEMBLY COMPRISING A FRONT BUMPER SHIELD |
| GB2475964A (en) * | 2009-12-03 | 2011-06-08 | Gm Global Tech Operations Inc | Bumper support |
-
2016
- 2016-12-28 FR FR1663447A patent/FR3061101B1/en not_active Expired - Fee Related
-
2017
- 2017-12-06 EP EP17816993.4A patent/EP3562713A1/en not_active Withdrawn
- 2017-12-06 WO PCT/FR2017/053406 patent/WO2018122480A1/en not_active Ceased
- 2017-12-06 MA MA047154A patent/MA47154A/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2805504A1 (en) * | 2000-02-24 | 2001-08-31 | Valeo Thermique Moteur Sa | Forward face, of motor vehicle, is produced by plastic moulding, and has energy absorbing devices to act as mountings for beam of bumper |
| US6874831B1 (en) * | 2000-07-06 | 2005-04-05 | Compagnie Plastic Omnium | Front structure for a motor vehicle |
| FR2895341A1 (en) * | 2005-12-23 | 2007-06-29 | Plastic Omnium Cie | ENERGY ABSORPTION SYSTEM FOR A MOTOR VEHICLE |
| FR2911557A1 (en) | 2007-01-23 | 2008-07-25 | Plastic Omnium Cie | Frontal impact e.g. insurance type impact, absorption module for motor vehicle, has lower transversal beam and abutment connecting upper transversal element and beam to form frame e.g. absorber frame, and central reinforcement |
| FR2927033A1 (en) * | 2008-02-05 | 2009-08-07 | Peugeot Citroen Automobiles Sa | Energy absorbing beam for front bumper of motor vehicle, has cross-piece including holes extending longitudinally along direction of absorbers and forming air inlet grill of front bumper, where absorbers are arranged at ends of cross-piece |
| FR2943595A1 (en) | 2009-03-26 | 2010-10-01 | Faurecia Bloc Avant | FRONT VEHICLE ASSEMBLY COMPRISING A FRONT BUMPER SHIELD |
| GB2475964A (en) * | 2009-12-03 | 2011-06-08 | Gm Global Tech Operations Inc | Bumper support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654998A (en) * | 2020-12-23 | 2022-06-24 | 广州法雷奥发动机冷却有限公司 | A vehicle front-end module |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3562713A1 (en) | 2019-11-06 |
| FR3061101B1 (en) | 2019-11-08 |
| FR3061101A1 (en) | 2018-06-29 |
| MA47154A (en) | 2021-04-07 |
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