DE102012216545A1 - Motor vehicle has flat component with shell construction for arrangement in body of motor vehicle, where flat component has outer layer, core and inner layer, and outer layer is made from fiber-reinforced plastic - Google Patents

Motor vehicle has flat component with shell construction for arrangement in body of motor vehicle, where flat component has outer layer, core and inner layer, and outer layer is made from fiber-reinforced plastic Download PDF

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Publication number
DE102012216545A1
DE102012216545A1 DE201210216545 DE102012216545A DE102012216545A1 DE 102012216545 A1 DE102012216545 A1 DE 102012216545A1 DE 201210216545 DE201210216545 DE 201210216545 DE 102012216545 A DE102012216545 A DE 102012216545A DE 102012216545 A1 DE102012216545 A1 DE 102012216545A1
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Prior art keywords
core
motor vehicle
outer layer
flat component
layer
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DE201210216545
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German (de)
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Bernt Arne Syvertsen
Lin Möllenhoff
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Priority to DE201210216545 priority Critical patent/DE102012216545A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/02—Layered products comprising a layer of paper or cardboard next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
    • B62D29/043—Superstructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • 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
    • B60R2021/343—Protecting non-occupants of a vehicle, e.g. pedestrians using deformable body panel, bodywork or components

Abstract

The motor vehicle has a flat component with a shell construction for an arrangement in a body of the motor vehicle. The flat component has an outer layer (6), a core (7) and an inner layer (8). The outer layer is made from a fiber-reinforced plastic. The core is made from an energy absorbing material, where the core is connected with the outer layer. The inner layer has compressed and resin-impregnated fabric arranged on the core. The core has an energy-absorbing layer, which has a honeycomb core or a foam core.

Description

Die Erfindung betrifft ein Kraftfahrzeug gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a motor vehicle according to the preamble of claim 1.

Aus der DE 10 2010 014 541 A1 ist bereits ein Außenverkleidungsteil für einen Rohbau eines Kraftfahrzeuges bekannt. Das Außenverkleidungsteil wird durch ein großflächiges Blechteil gebildet, an dessen Innenseite eine aus Kunststoff bestehende Unterstruktur angeordnet ist.From the DE 10 2010 014 541 A1 is already an exterior trim part for a shell of a motor vehicle known. The outer lining part is formed by a large-area sheet metal part, on the inside of which a substructure made of plastic is arranged.

Aufgabe der Erfindung ist es, ein Kraftfahrzeug zu schaffen, bei dem die verwendeten Bauteile auch einen Passivschutz von ungeschützten Verkehrsteilnehmern wie Fußgänger und Radfahrer ermöglichen.The object of the invention is to provide a motor vehicle in which the components used also allow passive protection of unprotected road users such as pedestrians and cyclists.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Ein erfindungsgemäßes Kraftfahrzeug weist ein flächiges Bauteil in Schalenbauweise auf, das für die Anordnung in einer Karosserie des Kraftfahrzeuges vorgesehen ist. Das flächige Bauteil besteht aus einer Außenschicht, einem Kern und einer Innenschicht. Die Außenschicht ist vorteilhafterweise aus einem faserverstärkten Kunststoff gebildet. Ein Kern aus einem energieabsorbierenden Material ist mit der Außenschicht verbunden. An dem Kern ist eine Innenschicht aus einem verpressten und mit Harz getränkten Vlies oder dergleichen angeordnet.A motor vehicle according to the invention has a flat component in shell construction, which is provided for the arrangement in a body of the motor vehicle. The planar component consists of an outer layer, a core and an inner layer. The outer layer is advantageously formed from a fiber-reinforced plastic. A core of energy absorbing material is bonded to the outer layer. An inner layer of a pressed and resin-impregnated nonwoven fabric or the like is disposed on the core.

In einer vorteilhaften Ausführungsform weist der Kern eine energieabsorbierende Schicht aus einem Wabenkern oder einem Schaumkern auf.In an advantageous embodiment, the core has an energy-absorbing layer of a honeycomb core or a foam core.

Vorteilhafterweise ist der Wabenkern aus Papier gebildet.Advantageously, the honeycomb core is formed from paper.

Der Schaumkern ist in einer vorteilhaften Ausführungsform aus PU oder aus EPP oder dergleichen hergestellt.The foam core is made in an advantageous embodiment of PU or EPP or the like.

Die Innenschicht ist vorteilhafterweise ein Vlies, das aus Glasfasern oder Kohlenstofffasern oder Aramidfasern oder Kunststofffasern aus PE oder dergleichen gebildet ist.The inner layer is advantageously a nonwoven fabric formed of glass fibers or carbon fibers or aramid fibers or plastic fibers of PE or the like.

In einer vorteilhaften Ausführungsform ist das zur Herstellung des Vlieses verwendete Harz ein Epoxidharz, Polyurethan, ein Phenolharz, ein thermoplastisches Harzsystem oder ein duroplastisches Harzsystem.In an advantageous embodiment, the resin used to make the nonwoven fabric is an epoxy resin, polyurethane, a phenolic resin, a thermoplastic resin system or a thermosetting resin system.

Eine Ausführungsform der Erfindung wird nachstehend anhand der Figuren beispielshalber beschrieben. Dabei zeigen:An embodiment of the invention will be described below by way of example with reference to the figures. Showing:

1 eine perspektivische Ansicht eines Kraftfahrzeuges von vorne und 1 a perspective view of a motor vehicle from the front and

2 eine Schnittdarstellung eines teilweise dargestellten Querschnittes einer Frontklappe. 2 a sectional view of a partially illustrated cross-section of a front door.

Die 1 zeigt ein Kraftfahrzeug 1 mit einer Karosserie 2, die mit einer dargestellten Frontklappe 3, einer nicht weiter dargestellten Heckklappe 4 und mit Seitentüren 5 versehen ist.The 1 shows a motor vehicle 1 with a body 2 with a front flap 3 , a not shown tailgate 4 and with side doors 5 is provided.

Die 2 zeigt einen Querschnitt der Frontklappe 3. Eine Außenschicht 6 wird durch einen faserverstärkten Kunststoff gebildet. An die Außenschicht 6 schließt sich ein Kern 7 an. An dem Kern 7 ist eine Innenschicht 8 angeordnet.The 2 shows a cross section of the front door 3 , An outer layer 6 is formed by a fiber-reinforced plastic. To the outer layer 6 closes a core 7 at. At the core 7 is an inner layer 8th arranged.

Die Außenschicht 6 wird in der gezeigten Ausführungsform durch einen faserverstärkten Kunststoff gebildet. Die verwendeten Fasern können Glasfasern, Kohlenstofffasern, Aramidfasern oder Kombinationen der genannten oder anderer Fasern sein.The outer layer 6 is formed in the embodiment shown by a fiber-reinforced plastic. The fibers used may be glass fibers, carbon fibers, aramid fibers or combinations of said or other fibers.

Der Kern 7 ist beispielsweise ein Wabenkern oder ein Schaumkern. Der Wabenkern kann beispielsweise aus Papier oder aus Kunststoff gebildet sein. Der Schaumkern besteht beispielsweise aus Polyurethan, PU oder aus EPP.The core 7 is for example a honeycomb core or a foam core. The honeycomb core can be formed, for example, from paper or plastic. The foam core consists for example of polyurethane, PU or EPP.

Die Innenschicht 8 ist in einer Ausführungsform ein mit Harz getränktes, verprasstes Vlies. Das Vlies ist beispielsweise aus Kunststofffasern oder Glasfasern, Kohlenstofffasern oder Aramidfasern gebildet. Als Harz kann ein Epoxidharz, Polyurethan, PU, Phenolharz, ein thermoplastisches Harzsystem oder ein duroplastisches Harzsystem verwendet werden.The inner layer 8th In one embodiment, a resin-impregnated, sprayed nonwoven fabric. The nonwoven is formed for example of plastic fibers or glass fibers, carbon fibers or aramid fibers. As the resin, an epoxy resin, polyurethane, PU, phenol resin, a thermoplastic resin system or a thermosetting resin system can be used.

Das Fahrzeugbauteil, in diesem Falle die Frontklappe 3, weist im miteinander verbundenen Zustand eine Sandwichstruktur 9 auf.The vehicle component, in this case the front flap 3 , Has in the connected state a sandwich structure 9 on.

Die Herstellung der Sandwichstruktur 9 erfolgt in der Regel dadurch, dass die Außenschicht 6, der Kern 7 und die Innenschicht 8 als Einzelbauteile vorgefertigt sind. In einem Werkzeug werden die Außenschicht 6, der Kern 7 und die Innenschicht 8 unter Verwendung von Klebstoffen und ggf. unter Zufuhr von Wärme miteinander verbunden.The production of the sandwich structure 9 is usually done by leaving the outer layer 6 , the core 7 and the inner layer 8th are prefabricated as individual components. In a tool become the outer layer 6 , the core 7 and the inner layer 8th using adhesives and possibly with the supply of heat.

Die Außenschicht 6 der Sandwichstruktur 9 ist in Fahrzeuglängsrichtung x drucksteif ausgebildet. Eine durch den Kern 7 und die Innenschicht 8 gebildete Innenstruktur 10 ist im Vergleich zu der Außenschicht 6 druckweicher.The outer layer 6 the sandwich structure 9 is formed in the vehicle longitudinal direction x pressure resistant. One through the core 7 and the inner layer 8th formed interior structure 10 is compared to the outer layer 6 pressure softer.

Bei einem Aufprall eines Verkehrsteilnehmers auf die Frontklappe 3 kommt es zu einem Einrollen der Frontklappe 3, da die Innenschicht 8 bei der Aufprallenergie reißt und die Frontklappe 3 nach unten in z-Richtung nachgibt. Durch diesen Aufbau wird bei einem Aufprall auf die Frontklappe 3 die Aufprallenergie vermindert.In a collision of a road user on the front door 3 it comes to a rolling of the front door 3 because the inner layer 8th at the impact energy ruptures and the front door 3 yields down in the z direction. Due to this structure will impact on the front door 3 the impact energy is reduced.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102010014541 A1 [0002] DE 102010014541 A1 [0002]

Claims (6)

Kraftfahrzeug mit einem flächigen Bauteil in Schalenbauweise für die Anordnung in einer Karosserie des Kraftfahrzeuges, wobei das flächige Bauteil eine Außenschicht, einen Kern und eine Innenschicht aufweist, dadurch gekennzeichnet, dass die Außenschicht (6) aus einem faserverstärkten Kunststoff gebildet ist, dass mit der Außenschicht (6) ein Kern (7) aus einem energieabsorbierenden Material verbunden ist und dass an dem Kern (7) eine Innenschicht (8) aus einem verpressten und mit Harz getränkten Vlies oder dergleichen angeordnet ist.Motor vehicle with a flat component in shell construction for the arrangement in a body of the motor vehicle, wherein the planar component has an outer layer, a core and an inner layer, characterized in that the outer layer ( 6 ) is formed of a fiber-reinforced plastic that with the outer layer ( 6 ) a core ( 7 ) is made of an energy absorbing material and that on the core ( 7 ) an inner layer ( 8th ) is arranged from a pressed and resin-impregnated non-woven or the like. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass der Kern (7) eine energieabsorbierende Schicht aus einem Wabenkern oder einem Schaumkern aufweist.Motor vehicle according to claim 1, characterized in that the core ( 7 ) has an energy absorbing layer of a honeycomb core or a foam core. Kraftfahrzeug nach Anspruch 2, dadurch gekennzeichnet, dass der Wabenkern aus Papier gebildet ist.Motor vehicle according to claim 2, characterized in that the honeycomb core is formed from paper. Kraftfahrzeug nach Anspruch 2, dadurch gekennzeichnet, dass der Schaumkern aus PU oder aus EPP oder dergleichen hergestellt ist.Motor vehicle according to claim 2, characterized in that the foam core is made of PU or EPP or the like. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Innenschicht (8) ein Vlies ist, das aus Glasfasern oder Kohlenstofffasern oder Aramidfasern oder Kunststofffasern aus PE oder dergleichen gebildet ist.Motor vehicle according to one of the preceding claims, characterized in that the inner layer ( 8th ) is a nonwoven fabric formed of glass fibers or carbon fibers or aramid fibers or plastic fibers of PE or the like. Kraftfahrzeug nach Anspruch 5, dadurch gekennzeichnet, dass das zur Herstellung des Vlieses verwendete Harz ein Epoxidharz, Polyurethan, ein Phenolharz, ein thermoplastisches Harzsystem oder ein duroplastisches Harzsystem ist.Motor vehicle according to claim 5, characterized in that the resin used to produce the nonwoven fabric is an epoxy resin, polyurethane, a phenolic resin, a thermoplastic resin system or a thermosetting resin system.
DE201210216545 2012-09-17 2012-09-17 Motor vehicle has flat component with shell construction for arrangement in body of motor vehicle, where flat component has outer layer, core and inner layer, and outer layer is made from fiber-reinforced plastic Pending DE102012216545A1 (en)

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DE102014215587A1 (en) * 2014-08-06 2016-02-11 Bayerische Motoren Werke Aktiengesellschaft Composite material and components made therefrom for a motor vehicle
WO2017068357A1 (en) * 2015-10-23 2017-04-27 Gordon Murray Design Limited A component for a vehicle
EP3309046A1 (en) * 2016-10-14 2018-04-18 Faist ChemTec GmbH Front shutter, vehicle with such a front shutter and method for producing the same
CN110171490A (en) * 2019-02-28 2019-08-27 山东中瑞德电动汽车有限公司 A kind of new-energy automobile composite material modularization body structural member

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CN110171490A (en) * 2019-02-28 2019-08-27 山东中瑞德电动汽车有限公司 A kind of new-energy automobile composite material modularization body structural member

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