Patent Application
20220371664
This application claims benefit to European Patent Application No. EP 21 174 562.5, filed on May 19, 2021, which is hereby incorporated by reference herein.
The invention relates to a structural component of a motor vehicle and to a method for producing the same.
DE 10 2008 062 007 A1 discloses a bulkhead, which is of multi-part design, namely comprising a lower crossmember, a bulkhead element and an upper reinforcing member, wherein the lower crossmember is designed as a light-metal die-cast component, and the bulkhead element and also the upper reinforcing member are formed from a light-metal sheet. The elements are connected to one another, e.g. by welding, screwing, adhesive bonding or clinching.
The disadvantage here is the high outlay for connecting the individual parts to one another.
DE 10 2008 062 004 A1 discloses a body structure in which the bulkhead has a flange and is connected to the crossmember, which likewise has a flange. In this case, the bulkhead is formed from a light-metal sheet and is preferably welded or adhesively bonded to the crossmember. Here too, there is the disadvantage of the high expenditure of time in bringing the individual elements together before the structural body part can be installed in the vehicle body.
In an embodiment, the present invention provides a structural component for a motor vehicle that is configured to extend transversely to a direction of travel for the motor vehicle and is configured to separate a passenger compartment and a front compartment of the motor vehicle. The structural component includes: a dashboard; two A-pillars arranged in each case laterally with respect to the dashboard; and a transverse reinforcement running along an upper side of the dashboard. The structural component is one-part or a one-piece light-metal die casting.
Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:
Embodiments of the present invention provide a structural component and a method associated therewith which shortens the production time, reduces logistics expenses and requires as few manual working steps as possible, the intention being thereby to increase the economic efficiency of the component, and also that the structural component have as low a weight as possible.
The structural component, according to an embodiment of the invention, is of a motor vehicle, wherein the structural component extends transversely to the direction of the vehicle and serves to separate the passenger compartment and the front compartment, preferably the engine compartment, and comprises a dashboard, two A-pillars arranged in each case laterally with respect to the dashboard, and a transverse reinforcement running along the upper side of the dashboard. The structural component according to an embodiment of the invention is of one-part or one-piece design, that is to say the elements, such as the dashboard, the A-pillars and also the transverse reinforcement, do not require any joining processes in order to be connected to one another, but rather the structural component according to an embodiment of the invention is of integral design. Moreover, the structural component according to an embodiment of the invention is designed as a light-metal die casting, allowing a thin-walled structure and nevertheless achieving the desired stability.
It has been found to be advantageous if the dashboard has a pedal carrier arranged integrally thereon. Integrally arranged thereon is understood to mean that a pedal carrier is integrated directly into the dashboard or into the structural component and is likewise arranged on the die-cast component according to an embodiment of the invention. Thus, the structural component according to an embodiment of the invention with an integrated pedal carrier is of one-part or one-piece design.
Of course, further or other tabs and holders can also be arranged integrally on the structural component according to an embodiment of the invention, as required, or further and other tabs and holders can also be integrated into the light-metal die-cast component, depending on the type of vehicle.
The structural component is preferably of thin-walled design, wherein the component wall is between 1 and 8 mm, preferably between 2 and 5 mm. The component walls preferably have different thicknesses corresponding to their positioning on the structural component. By virtue of the different thicknesses of the component walls, flow behaviour in the structural component is optimized or optimization of filling is achieved. On the one hand, the individual component walls can have different thicknesses, corresponding to their arrangement, and, on the other hand, a component wall itself can also have different thicknesses, that is to say it can taper or widen in order to achieve optimization of filling, as mentioned above.
It has been found to be a preferred embodiment if the A-pillar has ribbing for the reinforcement thereof. The ribbing is preferably arranged on one side of an A-pillar and extends over the entire width and height, or only over a partial region.
It has been found to be advantageous if the transverse reinforcement has ribbing for reinforcement. The ribbing is preferably arranged between the dashboard and the transverse reinforcement. In this case, the ribbing is preferably formed by a regular arrangement of ribs along the upper side of the dashboard.
Ribbing is preferably arranged in the transitional region between the dashboard and the A-pillar. This arrangement of the ribbing increases the rigidity between the individual components of the structural component.
According to a preferred embodiment, the structural component according to the invention is produced from an aluminum (Al) or magnesium (Mg) alloy.
According to an embodiment of the invention, the structural component is produced by die casting.
Producing the structural component according an embodiment to the invention by die casting makes possible complex, thin-walled and yet stable shaping. Moreover, various add-on parts can be integrated directly into the one-part structural component, thereby avoiding additional assembly steps.
It has been found to be advantageous if the structural component according to an embodiment the invention is subjected to heat treatment after casting. The desired properties, such as, for example, the strength of the structural component, are thereby further enhanced. Heat treatment can be carried out in whole or in part.
All design options can be freely combined with one another.
Exemplary embodiments of the invention are described with reference to the figures, although the invention is not limited to the exemplary embodiments.
The drawing presented in
It can be clearly seen in the figures that it is advantageous if the A-pillar 3 has ribbing 6, which increases stability. The ribbing 6 in the A-pillar 3 preferably runs on the outside. Moreover, it is preferable if it is arranged at regular intervals.
It can likewise be seen from the figures that it is advantageous if ribbing 7 is arranged between the transverse reinforcement 4 and the upper side of the dashboard 2. This increases the stability of the transverse reinforcement 4. Furthermore, the structural component 1 according to an embodiment of the invention preferably has ribbing 8 between the dashboard 2 and the respective A-pillar 3.
Moreover, the structural component 1 according to an embodiment of the invention preferably has a connection 9 to the sill at the A-pillars 3.
Furthermore, it is advantageous if the dashboard 2 has an integrated passage 10 for piping of an air conditioning unit. It has been found to be a further advantage if there is also a passage 11, 12 for the plunger of the brake pedal and/or of the steering rod directly into the dashboard 2. It is likewise advantageous if a service opening 13 for the air conditioning unit is integrated into the dashboard 2. It is also advantageous if connection points for a cockpit crossmember and/or roof rails are integrated onto the A-pillar 3.
While subject matter of the present disclosure has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. Any statement made herein characterizing the invention is also to be considered illustrative or exemplary and not restrictive as the invention is defined by the claims. It will be understood that changes and modifications may be made, by those of ordinary skill in the art, within the scope of the following claims, which may include any combination of features from different embodiments described above.
The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.
| Number | Date | Country | Kind |
|---|---|---|---|
| 21 174 562.5 | May 2021 | EP | regional |
