EP3057778A1 - Component arrangement - Google Patents

Component arrangement

Info

Publication number
EP3057778A1
EP3057778A1 EP14781574.0A EP14781574A EP3057778A1 EP 3057778 A1 EP3057778 A1 EP 3057778A1 EP 14781574 A EP14781574 A EP 14781574A EP 3057778 A1 EP3057778 A1 EP 3057778A1
Authority
EP
European Patent Office
Prior art keywords
component
preforms
pillar
preform
components
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.)
Withdrawn
Application number
EP14781574.0A
Other languages
German (de)
French (fr)
Inventor
Thomas Schnaufer
Andreas Beil
Simon Spitzer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP3057778A1 publication Critical patent/EP3057778A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/304—In-plane lamination by juxtaposing or interleaving of plies, e.g. scarf joining
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • 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
    • B62D25/04—Door pillars ; windshield pillars
    • 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
    • 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
    • B62D29/048—Connections therefor, e.g. joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1248—Interpenetrating groove joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
    • B29C66/73941—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset characterised by the materials of both parts being thermosets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3011—Roof linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3041—Trim panels
    • 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
    • B32B2605/08—Cars
    • 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
    • B62D25/02—Side panels
    • 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
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof

Definitions

  • the invention relates to a component arrangement, comprising a first component and a second component, wherein at least one component has a plurality of preforms.
  • preforms For weight-optimized and reduced-speed production, different preforms with different wall thicknesses and layer structures are required. These preforms are infiltrated in a subsequent process step with the plastic or resin forming the matrix, for example in a resin transfer molding tool. Because the contiguous component assemblies are made in one shot, preform overlaps are necessary.
  • the one-sided or one-sided preform overlap entails the disadvantage that a strong S-impact is required, which causes a large loss of function of the component.
  • the present invention has the object to provide a simplified component assembly, with which the disadvantages of the prior art are overcome. Furthermore, it is a particular object of the invention to specify a component arrangement which is distinguished in the connecting region of the two components by high mechanical characteristics.
  • the invention proposes a component arrangement comprising a first and a second component, wherein at least one component has multiple preforms. Furthermore, a preform of the second component can overlap a plurality of preforms of the first component in the connection region of the two components. Instead of a single-cut preform overlap, a two- or multi-section preform overlap is created, thereby increasing the overlap areas, ie the areas where preforms of a component are in contact with preforms of a second component. This improves the mechanical characteristics of the component arrangement, so that the component arrangement can absorb higher forces.
  • the components may be formed as fiber-reinforced components with a matrix of thermosetting or thermoplastic material in which reinforcing fibers of carbon, glass, aramid and / or basalt are embedded.
  • the components may be structural components for vehicles, which are formed from a plurality of preforms.
  • Structural components for the purposes of this invention may be, in particular, side members, A-, B-, C-, D- pillar reinforcements, roof hoops, side frames inside or outside, ring bearers, end wall, tunnels, bottom plate and / or reinforcements of the side sills.
  • the first component is an A pillar of a vehicle and the second component is a roof frame of a vehicle.
  • Each of these components may be formed from one or more preforms.
  • the A-pillar may be constructed in two parts, with an inner shell and an outer shell, each shell comprising at least two preforms.
  • the A-pillar has a four-layer structure, through which a large contact surface in the overlapping portion can be realized.
  • the roof frame can be constructed in several parts, and at least have an inner shell and an outer shell. Each of these shells may, in turn, have one or more preforms which can be brought into contact with the preforms of the A-pillar in the overlapping section.
  • 1 is a side view of a side frame
  • Fig. 2 is a sectional view of Fig. 1 along the section line A-A according to the prior art
  • Fig. 3 is a sectional view taken along section line A-A of Fig. 1 according to the present invention.
  • FIG. 1 an assembly of a side frame is shown by way of example.
  • the geometry is intended to be illustrative only and not limiting the present invention.
  • the side frame 10 has an A-pillar 1 1, which is connected at its upper end to the roof frame 12.
  • the connection is according to the prior art as shown in Fig. 2, formed.
  • the A-pillar is constructed with two shells, with an outer shell 11a and an inner shell I i i.
  • the roof frame 12 is also constructed with two shells, with an outer shell 12a and an inner shell 12i. All trays are made of fiber-reinforced plastic material.
  • the individual shell elements overlap each other, touching each other at a contact surface.
  • the A-pillar 1 is also constructed with two shells with an outer shell and an inner shell.
  • the outer shell is in turn formed from two preforms 11a1 and 1a2.
  • the inner shell also comprises two preforms 11 i1 and 11i2.
  • the roof frame 12 is also constructed with two shells with an outer shell 12a and an inner shell 12i, which are each formed from a preform.
  • the preforms of the A pillar 11 partially overlap the preforms of the roof frame 12.
  • the preforms of the outer shell of the A pillar 11a1 and 11a2 overlap on both sides the preform of the outer shell of the roof frame 12a.
  • the preform 12a is in contact on its outside with the preform 11a1 of the A-pillar 11 and on its inside with the preform 11a2 of the outer shell and the A-pillar 11 in contact.
  • the contact area in a two-sided, undercut connection is twice as large compared to a single-ended connection.
  • the preforms 11i1 and 11i2 of the inner shell of the A-pillar 1 1 comprise the preform 12i of the inner shell of the roof frame on both sides.
  • the inner preform 11i2 of the A pillar 11 is longer and overlaps the inner preform 12i of the roof frame 12 over a longer portion than the inner preform 11i1.
  • the preforms of the A-pillar 11 need not surround the preforms of the roof frame 12 symmetrically, but may have on one side a larger contact surface than on the other side, such as this is illustrated by way of example and representatively in FIG. 3 by the preforms and 1 1 i2.
  • the danger of a weak point in the overlapping or connecting portion can be significantly reduced.
  • the geometric stiffness jump is reduced significantly at such a junction.

Abstract

The invention relates to a component arrangement, comprising a first component (11) and a second component (12), wherein at least one component (11) has a plurality of preforms (11i1, 11i2, 11a1, 11a2), characterized in that a plurality of preforms (11i1, 11i2, 11a1, 11a2) of the first component (11) are overlapping in the connecting region (V) of the two components (11, 12) a preform of the second component (12).

Description

Bauteilanordnung  component arrangement
Die Erfindung betrifft eine Bauteilanordnung, umfassend ein erstes Bauteil und ein zweites Bauteil, wobei mindestens ein Bauteil mehrere Preforms aufweist.  The invention relates to a component arrangement, comprising a first component and a second component, wherein at least one component has a plurality of preforms.
Im heutigen Fahrzeugbau werden große Anstrengungen unternommen, um den Verbrauch der Fahrzeuge zu reduzieren. Eine wesentliche Rolle spielt dabei die Reduktion des Gesamtgewichts, da die Masse des Fahrzeugs, d.h. das Fahrzeuggewicht sich unmittelbar auf den Verbrauch auswirkt. Die verwendeten Materialien spielen eine maßgebliche Rolle, denn sie tragen nicht nur zum Bauteilgewicht sondern auch zur Bauteilsteifigkeit bei. In jüngster Zeit halten faserverstärkte Kunststoffe Einzug in den Fahrzeugbau. Bei diesen Materialien sind in einer Kunststoffmatrix aus Epoxidharz Verstärkungsfasern eingebettet. Große faserverstärkte Kunststoffbauteile, die im Fahrzeugbau als Strukturbauteile verwendet werden, sind aus mehreren Einzel-Preforms in einem Schuss hergestellt. Solche Preforms sind trockene Fasermatten, die in einem vorhergehenden Umformschritt endkonturnah beschnitten wurden und auf eine vorbestimmte Geometrie umgeformt wurden. Zur gewichtsoptimalen und verschnittreduzierten Fertigung sind verschiedene Preforms mit unterschiedlichen Wanddicken und Lagenaufbauten notwendig. Diese Preforms werden in einem folgenden Verfahrensschritt mit dem die Matrix bildenden Kunststoff bzw. Harz infiltriert, bspw. in einem Resin-Transfer-Molding-Werkzeug. Da die zusammenhängenden Bauteilanordnungen in einem Schuss hergestellt werden, sind Preform-Überlappungen notwendig. In today's vehicle industry, great efforts are being made to reduce the consumption of vehicles. An essential role is played here by the reduction of the total weight, since the mass of the vehicle, ie the vehicle weight, has a direct effect on fuel consumption. The materials used play a decisive role, because they not only contribute to the component weight but also to the component rigidity. Recently, fiber-reinforced plastics have found their way into vehicle construction. In these materials, reinforcing fibers are embedded in a plastic matrix of epoxy resin. Large fiber-reinforced plastic components, which are used as structural components in vehicle construction, are made from several individual preforms in one shot. Such preforms are dry fiber mats which have been trimmed near net shape in a previous forming step and converted to a predetermined geometry. For weight-optimized and reduced-speed production, different preforms with different wall thicknesses and layer structures are required. These preforms are infiltrated in a subsequent process step with the plastic or resin forming the matrix, for example in a resin transfer molding tool. Because the contiguous component assemblies are made in one shot, preform overlaps are necessary.
Aus dem Stand der Technik ist es bekannt, bspw. bei der Zusammenbaugruppe des Seitenrahmens eines Fahrzeugs im Bereich, in dem die A-Säule an den Dachrahmen stößt, eine ein-schnittige Preform- Überlappung zu generieren. From the prior art it is known, for example, in the assembly of the side frame of a vehicle in the area in which the A-pillar abuts the roof frame, to generate a one-section preform overlap.
Aufgrund dieser einseitigen oder ein-schnittigen Preform-Überlappung kann dementsprechend nur eine begrenzte Kraft von einem Bauteil auf das andere Bauteil übertragen werden. An diesen Stellen findet eine Kraftübertragung allein über Reinharz statt, was zur Folge hat, dass an der Preform- Überlappung in der Zusammenbaugruppe Seitenrahmen, Schwachstellen entstehen. Accordingly, due to this one-sided or one-piece preform overlap, only a limited force can be transmitted from one component to the other component. At these points, power transmission takes place solely via pure resin, which has the consequence that at the preform overlap in the assembly group side frames, weak points arise.
Um diesen Schwachstellen entgegen zu wirken, wurde im Stand der Technik versucht, die Überlappungslänge im Bereich der Preform-Überlappung zu erhöhen. Die ein-schnittige bzw. einseitige Preformüberlappung bringt jedoch den Nachteil mit sich, dass ein starker S-Schlag erforderlich ist, der eine große Funktionseinbuße des Bauteils bewirkt. In order to counteract these weak points, it has been attempted in the prior art to increase the overlap length in the area of the preform overlap. However, the one-sided or one-sided preform overlap entails the disadvantage that a strong S-impact is required, which causes a large loss of function of the component.
Ausgehend von diesem Stand der Technik macht es sich die vorliegende Erfindung zur Aufgabe, eine vereinfachte Bauteilanordnung anzugeben, mit der die Nachteile des Standes der Technik überwunden werden. Ferner ist es eine besondere Aufgabe der Erfindung, eine Bauteilanordnung anzugeben, die sich in dem Verbindungsbereich der beiden Bauteile durch hohe mechanische Kennwerte auszeichnet. Based on this prior art, the present invention has the object to provide a simplified component assembly, with which the disadvantages of the prior art are overcome. Furthermore, it is a particular object of the invention to specify a component arrangement which is distinguished in the connecting region of the two components by high mechanical characteristics.
Diese Aufgabe wird durch eine Bauteilanordnung mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. Die abhängigen Ansprüche stellen vorteilhafte Ausführungsformen der Erfindung dar. This object is achieved by a component arrangement having the features of the independent claim 1. The dependent claims represent advantageous embodiments of the invention.
Zur Lösung dieser Aufgabe schlägt die Erfindung eine Bauteilanordnung vor, die ein erstes und ein zweites Bauteil umfasst, wobei mindestens ein Bauteil mehrere Preforms aufweist. Weiterhin können im Verbindungsbereich der beiden Bauteile mehrere Preforms des ersten Bauteils ein Preform des zweiten Bauteils überlappen. Anstatt einer ein-schnittigen Preform- Überlappung, wird so eine zwei- oder mehrschnittige Preform-Überlappung erzeugt, wodurch die Überlappungsflächen, d.h. die Flächen, an denen Preforms eines Bauteils mit Preforms eines zweiten Bauteils in Kontakt stehen, vergrößert wird. Dies verbessert die mechanischen Kennwerte der Bauteilanordnung, so dass die Bauteilanordnung höhere Kräfte aufnehmen kann. To achieve this object, the invention proposes a component arrangement comprising a first and a second component, wherein at least one component has multiple preforms. Furthermore, a preform of the second component can overlap a plurality of preforms of the first component in the connection region of the two components. Instead of a single-cut preform overlap, a two- or multi-section preform overlap is created, thereby increasing the overlap areas, ie the areas where preforms of a component are in contact with preforms of a second component. This improves the mechanical characteristics of the component arrangement, so that the component arrangement can absorb higher forces.
Weiterhin können die Bauteile als faserverstärkte Bauteile ausgebildet sein mit einer Matrix aus duroplastischem oder thermoplastischem Material, in der Verstärkungsfasern aus Kohlenstoff, Glas, Aramid und/oder Basalt eingebettet sind. Furthermore, the components may be formed as fiber-reinforced components with a matrix of thermosetting or thermoplastic material in which reinforcing fibers of carbon, glass, aramid and / or basalt are embedded.
Darüber hinaus können die Bauteile Strukturbauteile für Fahrzeuge sein, die aus einer Mehrzahl von Preforms ausgebildet sind. Strukturbauteile im Sinne dieser Erfindung können insbesondere Längsträger, A-, B-, C-, D- Säulenverstärkungen, Dachspriegel, Seitenrahmen innen oder außen, Ringträger, Stirnwand, Tunnel, Bodenblech und/oder Verstärkungen der Seitenschweller sein. In addition, the components may be structural components for vehicles, which are formed from a plurality of preforms. Structural components for the purposes of this invention may be, in particular, side members, A-, B-, C-, D- pillar reinforcements, roof hoops, side frames inside or outside, ring bearers, end wall, tunnels, bottom plate and / or reinforcements of the side sills.
In einer ersten Ausführungsform der Erfindung ist das erste Bauteil eine A- Säule eines Fahrzeugs und das zweite Bauteil ein Dachrahmen eines Fahrzeugs. Jedes dieser Bauteile kann aus einem oder mehreren Preforms ausgebildet sein. In a first embodiment of the invention, the first component is an A pillar of a vehicle and the second component is a roof frame of a vehicle. Each of these components may be formed from one or more preforms.
Weiterhin kann die A-Säule zweiteilig aufgebaut sein, mit einer inneren Schale und einer äußeren Schale, wobei jede Schale mindestens zwei Preforms umfasst. Somit weist die A-Säule einen vierlagigen Aufbau auf, durch den eine große Kontaktfläche im Überlappungsabschnitt realisierbar ist. Durch Unterteilung der A-Säule in zwei oder mehrere einzelne Preforms kann die Wanddicke dieser einzelnen Preforms so reduziert werden, dass die Summe der Wanddicken der aufgeteilten Preforms in etwa der Wanddicke eines Preforms gemäß dem Stand der Technik entspricht, der mit nur einer ein-schnittigen Überlappung an dem Dachrahmen befestigt ist. Furthermore, the A-pillar may be constructed in two parts, with an inner shell and an outer shell, each shell comprising at least two preforms. Thus, the A-pillar has a four-layer structure, through which a large contact surface in the overlapping portion can be realized. By dividing the A-pillar into two or more individual preforms, the wall thickness of these individual preforms can be reduced so that the Sum of the wall thickness of the split preforms corresponds approximately to the wall thickness of a preform according to the prior art, which is attached with only a one-piece overlap on the roof frame.
Darüber hinaus kann der Dachrahmen mehrteilig aufgebaut sein, und zumindest eine innere Schale und eine äußere Schale aufweisen. Jede dieser Schalen kann wiederum einen oder mehrere Preforms aufweisen, die mit den Preforms der A-Säule im Überlappungsabschnitt in Kontakt bringbar sind. In addition, the roof frame can be constructed in several parts, and at least have an inner shell and an outer shell. Each of these shells may, in turn, have one or more preforms which can be brought into contact with the preforms of the A-pillar in the overlapping section.
Im Folgenden wird die Erfindung anhand der Figurenbeschreibung näher erläutert. Die Ansprüche, die Figuren und die Beschreibung enthalten eine Vielzahl von Merkmalen, die im Folgenden im Zusammenhang mit beispielhaft beschriebenen Ausführungsformen der vorliegenden Erfindung erläutert werden. Der Fachmann wird diese Merkmale auch einzeln und in anderen Kombinationen betrachten, um weitere Ausführungsformen zu bilden, die an entsprechende Anwendungen der Erfindung angepasst sind. The invention is explained in more detail below with reference to the description of the figures. The claims, the figures, and the description include a variety of features that will be discussed below in conjunction with exemplary embodiments of the present invention. The person skilled in the art will also consider these features individually and in other combinations to form further embodiments that are adapted to corresponding applications of the invention.
Es zeigen in schematischer Darstellung: In a schematic representation:
Fig. 1 eine Seitenansicht auf einen Seitenrahmen, 1 is a side view of a side frame,
Fig. 2 eine Schnittansicht aus Fig. 1 entlang der Schnittlinie A-A gemäß dem Stand der Technik, und Fig. 2 is a sectional view of Fig. 1 along the section line A-A according to the prior art, and
Fig. 3 eine Schnittansicht gemäß der Schnittlinie A-A aus Fig. 1 gemäß der vorliegenden Erfindung. Fig. 3 is a sectional view taken along section line A-A of Fig. 1 according to the present invention.
In Fig. 1 ist beispielhaft eine Zusammenbaugruppe eines Seitenrahmens dargestellt. Die Geometrie soll hier nur darstellenden Charakter haben und die vorliegende Erfindung nicht beschränken. Im vorderen Fahrzeugbereich, in Fig. 1 linksseitig dargestellt, weist der Seitenrahmen 10 eine A-Säule 1 1 auf, die an ihrem oberen Ende mit dem Dachrahmen 12 verbunden ist. Die Verbindung ist gemäß dem Stand der Technik wie in Fig. 2 dargestellt, ausgebildet. Die A-Säule ist zweischalig aufgebaut, mit einer Außenschale 11a und einer Innenschale I i i. Der Dachrahmen 12 ist ebenfalls zweischalig aufgebaut, mit einer Außenschale 12a und einer Innenschale 12i. Alle Schalen sind aus faserverstärktem Kunststoffmaterial ausgebildet. Im Verbindungsbereich V überlappen die einzelnen Schalenelemente einander, wobei sie sich an einer Kontaktfläche berühren. In Fig. 1, an assembly of a side frame is shown by way of example. The geometry is intended to be illustrative only and not limiting the present invention. In the front vehicle area, shown in Fig. 1 left side, the side frame 10 has an A-pillar 1 1, which is connected at its upper end to the roof frame 12. The connection is according to the prior art as shown in Fig. 2, formed. The A-pillar is constructed with two shells, with an outer shell 11a and an inner shell I i i. The roof frame 12 is also constructed with two shells, with an outer shell 12a and an inner shell 12i. All trays are made of fiber-reinforced plastic material. In the connection region V, the individual shell elements overlap each other, touching each other at a contact surface.
Die sich hiervon abgrenzende Erfindung ist in Fig. 3 dargestellt. Wie daraus ersichtlich ist, ist die A-Säule 1 ebenfalls zweischalig aufgebaut mit einer Außenschale und einer Innenschale. Die Außenschale ist wiederum aus zwei Preforms 11a1 und 1 1a2 ausgebildet. Die Innenschale umfasst ebenfalls zwei Preforms 11 i1 und 11i2 auf. Der Dachrahmen 12 ist auch hier zweischalig aufgebaut mit einer Außenschale 12a und einer Innenschale 12i, die jeweils aus einem Preform ausgebildet sind. In dem Verbindungsbereich V überlappen die Preforms der A-Säule 11 abschnittsweise die Preforms des Dachrahmens 12. Wie daraus zu ersehen ist, überlappen die Preforms der Außenschale der A-Säule 11a1 und 11 a2 beidseitig den Preform der Außenschale des Dachrahmens 12a. Dadurch steht der Preform 12a an seiner Außenseite mit dem Preform 11a1 der A-Säule 11 in Kontakt und an seiner Innenseite mit dem Preform 11a2 der Außenschale und der A-Säule 11 in Berührung. Somit ist die Kontaktfläche bei einer zweiseitigen, hinterschnittigen Verbindung doppelt so groß im Vergleich zu einer einschnittigen Verbindung. Analog dazu umfassen die Preforms 11i1 und 11i2 der Innenschale der A-Säule 1 1 den Preform 12i der Innenschale des Dachrahmens beidseitig. Wie aus Fig. 3 ersichtlich, ist der innere Preform 11i2 der A-Säule 11 länger und überlappt den inneren Preform 12i des Dachrahmens 12 über einen längeren Abschnitt als der innere Preform 11i1. The invention delimiting it is shown in FIG. As can be seen, the A-pillar 1 is also constructed with two shells with an outer shell and an inner shell. The outer shell is in turn formed from two preforms 11a1 and 1a2. The inner shell also comprises two preforms 11 i1 and 11i2. The roof frame 12 is also constructed with two shells with an outer shell 12a and an inner shell 12i, which are each formed from a preform. In the connecting region V, the preforms of the A pillar 11 partially overlap the preforms of the roof frame 12. As can be seen, the preforms of the outer shell of the A pillar 11a1 and 11a2 overlap on both sides the preform of the outer shell of the roof frame 12a. As a result, the preform 12a is in contact on its outside with the preform 11a1 of the A-pillar 11 and on its inside with the preform 11a2 of the outer shell and the A-pillar 11 in contact. Thus, the contact area in a two-sided, undercut connection is twice as large compared to a single-ended connection. Similarly, the preforms 11i1 and 11i2 of the inner shell of the A-pillar 1 1 comprise the preform 12i of the inner shell of the roof frame on both sides. As shown in FIG. 3, the inner preform 11i2 of the A pillar 11 is longer and overlaps the inner preform 12i of the roof frame 12 over a longer portion than the inner preform 11i1.
Grundsätzlich müssen die Preforms der A-Säule 11 die Preforms des Dachrahmens 12 nicht symmetrisch umschließen, sondern können auf einer Seite eine größere Kontaktfläche als auf der anderen Seite aufweisen, wie dies beispielhaft und repräsentativ in Fig. 3 durch die Preforms und 1 1 i2 dargestellt ist. Durch die vorliegende Erfindung kann die Gefahr einer Schwachstelle im Überlappungs- bzw. Verbindungsabschnitt merklich reduziert werden. Darüber hinaus wird auch der geometrische Steifigkeitssprung an einer solchen Verbindungsstelle merklich reduziert. In principle, the preforms of the A-pillar 11 need not surround the preforms of the roof frame 12 symmetrically, but may have on one side a larger contact surface than on the other side, such as this is illustrated by way of example and representatively in FIG. 3 by the preforms and 1 1 i2. By the present invention, the danger of a weak point in the overlapping or connecting portion can be significantly reduced. In addition, the geometric stiffness jump is reduced significantly at such a junction.

Claims

Patentansprüche claims
1. Bauteilanordnung, umfassend ein erstes Bauteil (11 ) und ein zweites Bauteil (12), wobei mindestens ein Bauteil (11) mehrere Preforms (1 1 i1 , 11 i2, 1 1a1 , 1 1a2) aufweist, 1. component arrangement, comprising a first component (11) and a second component (12), wherein at least one component (11) has a plurality of preforms (1 1 i1, 11 i2, 1 1a1, 1 1a2),
dadurch gekennzeichnet, dass  characterized in that
im Verbindungsbereich (V) der beiden Bauteile (1 1 , 12) mehrere Preforms (1 1 i1 , 11 i2, 11a1 , 11a2) des ersten Bauteils (11) ein Preform des zweiten Bauteils (12) überlappen.  in the connecting region (V) of the two components (1 1, 12) a plurality of preforms (1 1 i1, 11 i2, 11a1, 11a2) of the first component (11) overlap a preform of the second component (12).
2. Bauteilanordnung nach Anspruch 1 , dadurch gekennzeichnet, dass die Bauteile (11 , 12) faserverstärkte Bauteile sind mit einer Matrix aus duroplastischem oder thermoplastischem Material in der 2. Component arrangement according to claim 1, characterized in that the components (11, 12) are fiber-reinforced components with a matrix of duroplastic or thermoplastic material in the
Verstärkungsfasern aus Kohlenstoff, Glas, Aramid und/oder Basalt eingebettet sind.  Reinforcing fibers of carbon, glass, aramid and / or basalt are embedded.
3. Bauteilanordnung nach einem der Ansprüche 1 oder 2, dadurch 3. Component arrangement according to one of claims 1 or 2, characterized
gekennzeichnet, dass  marked that
die Bauteile (1 1 , 12) Strukturbauteile für Fahrzeuge sind.  the components (1 1, 12) are structural components for vehicles.
4. Bauteilanordnung nach einem der vorhergehenden Ansprüche, 4. Component arrangement according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
das erste Bauteil (11) eine A-Säule eines Fahrzeug ist und das zweite Bauteil (12) ein Dachrahmen eines Fahrzeugs ist.  the first component (11) is an A pillar of a vehicle and the second component (12) is a roof frame of a vehicle.
5. Bauteilanordnung nach einem der vorhergehenden Ansprüche, 5. Component arrangement according to one of the preceding claims,
dadurch gekennzeichnet, dass  characterized in that
die A-Säule zweiteilig aufgebaut ist mit einer inneren Schale (11i) und einer äußeren Schale (11a), wobei jede Schale (11 a, 1 1 i) mindestens zwei Preforms (11 i1 , 11i2, 11a1 , 11a2) umfasst. the A-pillar is constructed in two parts with an inner shell (11i) and an outer shell (11a), each shell (11a, 11f) comprising at least two preforms (11i1, 11i2, 11a1, 11a2).
6. Bauteilanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass 6. Component arrangement according to one of the preceding claims, characterized in that
der Dachrahmen (12) mehrteilig aufgebaut ist und zumindest eine innere Schale 12i und eine äußere Schale 12a aufweist.  the roof frame (12) is constructed in several parts and has at least one inner shell 12i and an outer shell 12a.
EP14781574.0A 2013-10-18 2014-10-09 Component arrangement Withdrawn EP3057778A1 (en)

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