EP4630311A1 - Unterbodenschutz für kraftfahrzeuge, kraftfahrzeug mit unterbodenschutz und verfahren zum herstellen eines unterbodenschutzes - Google Patents
Unterbodenschutz für kraftfahrzeuge, kraftfahrzeug mit unterbodenschutz und verfahren zum herstellen eines unterbodenschutzesInfo
- Publication number
- EP4630311A1 EP4630311A1 EP23820906.8A EP23820906A EP4630311A1 EP 4630311 A1 EP4630311 A1 EP 4630311A1 EP 23820906 A EP23820906 A EP 23820906A EP 4630311 A1 EP4630311 A1 EP 4630311A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protective element
- support structure
- underbody protection
- layer
- underbody
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2072—Floor protection, e.g. from corrosion or scratching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2304/00—Optimising design; Manufacturing; Testing
- B60Y2304/07—Facilitating assembling or mounting
- B60Y2304/076—Facilitating assembling or mounting by add-on parts, e.g. retrofit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
Definitions
- the present invention relates to an underbody protection for motor vehicles, in particular for electric motor vehicles. Furthermore, the present invention relates to a motor vehicle, in particular an electric motor vehicle with an underbody protection and a method for producing an underbody protection.
- underbody protection systems are known from the state of the art. Heavy steel plates or welded steel assemblies are mainly used as underbody protection in order to absorb the high intrusion force and impact energy when motor vehicles dynamically hit obstacles. Such underbody protection systems increase the total weight of the vehicle. In addition, underbody protection made of steel poses an increased risk of corrosion.
- the invention is based on the object of providing an underbody protection which has a high rigidity and energy absorption capacity while at the same time being lightweight.
- an underbody protection for a motor vehicle which has at least a first protective element, a support structure with a plurality of ribs and at least a second protective element.
- the support structure is arranged in a sandwich-like manner between the first protective element and the second protective element and is connected to each of them, wherein the ribs extend between the first protective element and the second protective element, so that a plurality of cavities are formed between the first protective element and the second protective element.
- the underbody protection according to the invention has the advantage that the protective effect of the underbody protection against mechanical impact, for example from an impact, is increased.
- the second protective element can deform into the cavities of the support structure and convert the energy generated by the impact into mechanical deformation energy.
- the first protective element is protected from deformation due to the deformation of the second protective element into the cavities of the underbody protection, so that components of the motor vehicle located above the first protective element are effectively protected.
- the underbody protection therefore has an increased protective effect against mechanical impact.
- the underbody protection is designed for a motor vehicle, in particular for an electrically powered vehicle.
- the first protective element and/or the second protective element may also be referred to as the first protective plate and/or the second protective plate.
- the support structure is arranged in a sandwich-like manner between the first protective element and the second protective element, at least parts of the support structure are arranged in a sandwich-like manner at least in sections between the first protective element and the second protective element.
- the ribs are arranged in a sandwich-like manner between the first protective element and the second protective element.
- the first protective element and/or the second protective element can be designed as a substantially flat component.
- a substantially flat component in the sense of the present invention has a first direction of extension, a second direction of extension and a third direction of extension.
- the third direction of extension is significantly smaller than the first direction of extension and the second direction of extension.
- the third direction of extension can also be referred to as the thickness extension.
- the first direction of extension can also be referred to as the length extension.
- the second direction of extension can also be referred to as the width extension. All three directions of extension are orthogonal to one another.
- the first protective element can have a first connecting surface.
- the first connecting surface can be arranged parallel to the plane defined by the longitudinal extension and the width extension of the first protective element. In other words, the first connecting surface can be arranged orthogonal to the thickness extension of the first protective element.
- the second protective element can have a second connecting surface.
- the second connecting surface can be arranged parallel to the plane defined by the longitudinal extension and the width extension of the second protective element. In other words, the second connecting surface can be arranged orthogonal to the thickness extension of the second protective element.
- the support structure can have a base plate.
- the base plate of the support structure can be designed as a substantially flat component.
- the support structure has a plurality of ribs
- the support structure has at least two ribs.
- a first subset of the ribs can, for example, be aligned parallel to one another, and a second subset of the ribs can be aligned crossed to the first subset of the ribs.
- the support structure may comprise a plastic, in particular a thermoplastic and/or thermosetting plastic.
- the support structure can be made of fiber-reinforced plastic, at least in sections. This can improve the flexural rigidity of the underbody protection.
- the support structure can contain long fibers and/or continuous fibers. This can further improve the flexural rigidity of the underbody protection.
- the fibers of the support structure can be formed as glass fibers and/or carbon fibers and/or aramid fibers.
- the support structure is arranged in a sandwich-like manner between the first protective element and the second protective element and is connected to them, it is meant that the support structure is arranged starting from the first protective element and is connected to the first protective element.
- the first protective element is connected to the support structure in such a way that the thickness of the first protective element runs at least partially parallel to the thickness of the base plate of the support structure.
- the second The protective element is arranged on the support structure and connected to it in such a way that the thickness extension of the base plate of the support structure and the thickness extension of the second protective element run parallel to one another at least in sections.
- the first protective element and the second protective element are arranged on two opposite sides of the support structure on the support structure and connected to it.
- the ribs may extend between the first protective element and the second protective element such that the plurality of cavities are delimited by the first protective element and the base plate of the support structure. Alternatively or additionally, the cavities may be delimited by the first protective element and the second protective element.
- the majority of the cavities may have a width and/or a length in a range from 10 mm to 100 mm, preferably in a range from 30 mm to 60 mm.
- the ribs can extend in a regular pattern between the first protective element and the second protective element.
- the ribs can extend along the longitudinal extension and/or the width extension of the base plate of the support structure and form a regular pattern. This improves the flexural rigidity of the underbody protection.
- the ribs may have a wall thickness in a range of 1.5 mm to 8 mm, preferably in a range of 2 mm to 4 mm.
- the first protective element and/or the second protective element can partially cover the ribs of the support structure. This can result in increased flexibility of the underbody protection.
- the first protective element and/or the second protective element can completely cover the ribs of the support structure. This can result in increased flexural rigidity of the underbody protection.
- the first protective element and/or the second protective element can be connected to the support structure by means of connecting elements.
- Connecting elements can be designed as screws, rivets or other connecting elements.
- a cavity with an undercut or a through hole can be formed in the first protective element and/or in the second protective element.
- the material of the support structure can extend into the cavity, so that a rivet is formed in this way.
- the material of the support structure can extend through a through hole, the wall of which is preferably chamfered, so that a rivet is formed in this way.
- the support structure can have connection receptacles which are designed to connect the first protective element and/or the second protective element to the support structure by means of connection elements.
- the connection receptacles can be arranged on the plurality of ribs.
- the underbody protection can have a plurality of first protective elements and second protective elements. This makes it possible to achieve increased flexibility of the underbody protection.
- the support structure has a base plate from which the majority of the ribs extend.
- the correspondingly designed underbody protection has even improved stability and is particularly easy to manufacture.
- the majority of the ribs may extend orthogonally away from the base plate of the support structure. This may facilitate the manufacture of the support structure.
- the majority of the ribs can be monolithically connected to the base plate.
- Monolithically connected means two components that are made from a single piece. In particular, monolithically connected components are connected to one another without any joints.
- the support structure is shell-shaped.
- the correspondingly designed underbody protection has even improved stability and is particularly easy to manufacture.
- a shell-shaped component in the sense of the invention has at least one essentially flat section and at least one edge section which at least partially delimits the flat section and has a component which is orthogonal to the flat section.
- the delimiting edge section can also be referred to as a delimiting edge.
- the boundary edge can be monolithically connected to the base plate.
- the support structure can have a receiving volume which is at least partially delimited by the base plate and the boundary edge.
- the boundary edge can completely enclose the base plate of the support structure.
- the receiving volume can be completely limited by the boundary edge in the direction of the longitudinal extension and the width extension of the base plate.
- the support structure can be designed as a monolithic component.
- the first protective element can be arranged in the receiving volume of the support structure. This makes it easier to mount the underbody protection on a motor vehicle.
- the underbody protection has a connecting flange arranged on the edge.
- the connecting flange is preferably designed as part of the support structure. This makes it easier to manufacture the support structure. In addition, the bending stiffness of the support structure is increased.
- the connecting flange can have an extension in the direction of the width extension and/or the longitudinal extension of the base plate of the support structure in a range of 8 mm to 40 mm, preferably in a range of 10 mm to 18 mm. This allows the underbody protection to be connected to a motor vehicle in an improved manner.
- the connecting flange can have a joining surface.
- the joining surface can be designed to establish a connection with a motor vehicle or with a motor vehicle component, such as a traction battery.
- the connection with the motor vehicle can be a material-locking connection.
- a mechanical Connection is made using connecting elements. Connecting elements can be in the form of screws, rivets or other mechanical connecting elements.
- the connecting flange can be designed as part of the boundary edge.
- the connecting flange can be designed as a connecting flange running around the support structure.
- the first protective element is/are designed as a first organic sheet and/or the second protective element is/are designed as a second organic sheet.
- Organic sheets are fiber-matrix semi-finished products. These consist of a fiber fabric or a fiber layer embedded in a thermoplastic matrix. This improves hot formability and shortens production times. In addition, the flexural rigidity of the underbody protection can be improved.
- the first protective element and/or the second protective element can comprise the same plastic as the support structure. This allows the first protective element and/or the second protective element to be better connected to the support structure, in particular to be better welded.
- the first protective element and/or the second protective element can each have a multi-layer structure.
- the multi-layer structure has a first layer.
- the multi-layer structure can have a second layer, the second layer being connected to the first layer.
- the multi-layer structure can have a third layer which is connected to the second layer in such a way that the second layer is sandwiched between the first layer and the third layer.
- the multi-layer The multi-layer structure may include a fourth layer joined to the third layer such that the third layer is sandwiched between the second layer and the fourth layer.
- the multi-layer structure may include a fifth layer joined to the fourth layer such that the fourth layer is sandwiched between the third layer and the fifth layer.
- the multi-layer structure may include a sixth layer joined to the fifth layer such that the fifth layer is sandwiched between the fourth layer and the sixth layer.
- the multi-layer structure may include a cover layer bonded to the first layer such that the first layer is sandwiched between the cover layer and the second layer.
- the first connecting surface of the first protective element can be formed by a first side of the cover layer of the multi-layer structure.
- the second connecting surface of the second protective element can be formed by a first side of the cover layer of the multi-layer structure.
- the first connecting surface of the first protective element can be formed by a first side of the sixth layer of the multi-layer structure.
- the second connecting surface of the second protective element can be formed by a first side of the sixth layer of the multi-layer structure.
- the layers can be bonded together, preferably by welding.
- the first layer and/or the second layer and/or the third layer and/or the fourth layer and/or the fifth layer may comprise or be formed from a fibre-reinforced polypropylene.
- the fibers of the fiber-reinforced polypropylene can be formed as glass fibers and/or as aramid fibers and/or as carbon fibers.
- the first layer and/or the second layer and/or the third layer and/or the fourth layer and/or the fifth layer can have a fiber content of greater than or equal to 50%, preferably greater than or equal to 60% and particularly preferably greater than or equal to 70%.
- the fiber content corresponds to a volume fraction of the material of the layer.
- the first layer and/or the third layer and/or the fifth layer can have a fiber content of 72% and the second layer and/or the fourth layer can have a fiber content of 66%.
- the first layer and/or the second layer and/or the third layer and/or the fourth layer and/or the fifth layer can have a thickness extension in a range from 0.15 mm to 0.3 mm, preferably in a range from 0.17 mm to 0.25 mm and particularly preferably in a range from 0.19 mm to 0.23 mm.
- the first layer and/or the third layer and/or the fifth layer can have a thickness of 0.195 mm and the second layer and/or the fourth layer can have a thickness of 0.23 mm.
- the cover layer and/or the sixth layer can have a thickness in a range from 0.04 mm to 0.13 mm, preferably in a range from 0.05 mm to 0.12 mm and particularly preferably in a range from 0.06 mm to 0.11 mm.
- the top layer can have a thickness of 0.065 mm and the sixth layer can have a thickness of 0.1 mm.
- the first layer and the third layer and the fifth layer may comprise fibers having a first orientation within the polypropylene material.
- the second layer and the fourth layer may comprise fibers having a second orientation within the polypropylene material.
- the first orientation may be the same as or different from the second orientation.
- the first orientation is offset from the second orientation by 90°.
- the first protective element and/or the second protective element can have a thickness in a range from 1 mm to 2 mm, preferably in a range from 1.1 mm to 1.5 mm and particularly preferably in a range from 1.2 mm to 1.3 mm. According to a preferred embodiment, the first protective element and/or the second protective element can have a thickness of 1.21 mm.
- the first protective element is/are designed as a first metal sheet and/or the second protective element is/are designed as a second metal sheet.
- a protective element designed as a metal sheet has improved isotropic mechanical and thermal properties. This can improve the isotropic behavior of the underbody protection in particular.
- a first metal sheet and/or a second metal sheet may comprise a steel alloy and/or an aluminum alloy.
- the first protective element and/or the second protective element can be partially or completely enclosed by the support structure, in particular by a plastic material of the support structure. This allows the first protective element and/or the second protective element to be better protected against corrosion.
- the first protective element can partially protrude into the connecting flange.
- the first protective element can be partially enclosed by a material of the connecting flange. This increases the flexural rigidity of the underbody protection, particularly in the area of the connecting flange.
- the first protective element and/or the second protective element has/have a wall thickness in a range of 0.1 mm to 6 mm, preferably in a range of 0.5 mm to 4 mm, more preferably in a range of 1 mm to 3 mm.
- the inventors have found that even with surprisingly thin protective elements, the protective effect of the underbody protection against mechanical impacts is considerably improved compared to underbody protection devices known from the prior art and at the same time the weight is reduced.
- the support structure is designed as a plastic component, preferably as a fiber-reinforced plastic component.
- the correspondingly designed underbody protection has even better stability and is particularly easy to manufacture.
- the support structure can be simplified, in particular, they can be manufactured off-tool by injection moulding, thermoforming and/or extrusion and/or compression moulding.
- the support structure may comprise thermoplastic material, preferably polypropylene or polyamide.
- the support structure may comprise thermosetting plastic.
- the support structure has a thickness in the range of 5 mm to 25 mm, preferably in the range of 8 mm to 20 mm, more preferably in the range of 10 mm to 16 mm.
- a first connection surface of the first protective element is/are connected to the support structure by means of micro-form locking and/or a second connection surface of the second protective element is/are connected to the support structure by means of micro-form locking.
- the correspondingly designed underbody protection is particularly simple, as it can preferably be manufactured at least partially without the use of tools. Furthermore, the correspondingly designed underbody protection has even better stability.
- a micro-form fit within the meaning of the invention is understood to mean a form fit between two components, whereby one component is at least partially engaged by the other component at a number of points. This allows an improved form fit with an increased connection force to be achieved. In addition, this allows two components of different Materials such as plastic and metal can be bonded together more effectively.
- the first connection surface and/or the second connection surface has a microsurface structure.
- the microsurface structure of the first connecting surface and/or the second connecting surface is/are produced, for example, by means of a laser microstructuring process and/or by means of sandblasting or corundum blasting and/or by means of an etching process.
- a first connecting surface of the first protective element is/are materially connected to the support structure and/or a second connecting surface of the second protective element is/are materially connected to the support structure.
- a material-locking connection can be achieved, for example, by welding and/or gluing the support structure to the first connecting surface and/or the second connecting surface.
- a first adhesion promoter layer is/are applied to the first connecting surface and/or a second adhesion promoter layer is/are applied to the second connecting surface.
- the adhesion promoter layer enables an improved bond, in particular an improved material-tight bond, to be achieved.
- the adhesion promoter layer can be designed as a heat-activated adhesive layer, preferably in the form of a film, a lacquer and/or a powder coating.
- the powder coating can be applied to thermoplastic or thermosetting plastic. tic base. This allows a further improved material connection to be achieved between the support structure and the first protective element and the second protective element.
- the adhesion promoter layer can have a layer thickness in a range from 0.02 mm to 3 mm, preferably in a range from 0.03 mm to 1 mm, more preferably in a range from 0.05 mm to 0.3 mm.
- the underbody protection is designed such that at least a portion of the cavities are filled with a foam material.
- An underbody protection designed in this way has the advantage that the second protective element is deformed in the event of a mechanical impact, for example due to an impact caused by a motor vehicle dynamically hitting a surface, into the cavities in the support structure which are at least partially filled with foam material, and the energy generated by the impact can be better converted into mechanical deformation energy.
- the first protective element is protected from deformation due to the deformation of the second protective element into the cavities of the underbody protection which are at least partially filled with foam material, so that components of the motor vehicle located above the first protective element are effectively protected.
- the foam material in the cavities also absorbs energy generated by an impact.
- the underbody protection therefore has an even better protective effect against mechanical impact.
- the foam material can be polyurethane foam.
- the foam material can be made of expanded polypropylene or EPP foam.
- the foam material has a density in a range between 60 g/l and 180 g/l, preferably in a range between 100 g/l and 150 g/l.
- the underbody protection is designed such that the first protective element is additionally connected to the second protective element by means of the foam material.
- An underbody protection designed in this way has the advantage that the flexural rigidity of the underbody protection is further improved.
- a part of the first connecting surface of the first protective element can comprise a polypropylene or can be formed from this.
- a part of the second connecting surface of the second protective element can comprise a polypropylene or can be formed from this.
- the first protective element and the second protective element can each be materially connected to the foam material formed as EPP foam by the parts of the connecting surfaces comprising polypropylene, so that the first protective element is connected to the second protective element by means of the foam material.
- the first protective element can be additionally connected to the base plate by means of the foam material.
- the first protective element is materially connected to the base plate by means of the foam material.
- first protective element and/or the second protective element can be connected to the foam material by means of micro-form locking.
- the object underlying the present invention is also achieved by a motor vehicle, in particular an electric vehicle with an underbody protection as described above, which is attached to an underbody of the motor vehicle, in particular to a traction battery of the motor vehicle.
- the object underlying the present invention is also protected by a method for producing an underbody protection as described above, the method comprising the following method steps:
- the support structure can be manufactured using an injection molding process, a thermoforming process or an extrusion process.
- the support structure can be manufactured using a pressing process using a thermosetting sheet molding compound (SMC).
- SMC thermosetting sheet molding compound
- the first protective element and/or the second protective element can be connected to the support structure by a welding process. Alternatively or additionally, the connection can be made by screwing, riveting or clamping.
- the production of the support structure and the insertion of the first protective element can be carried out in one step.
- the first protective element can be inserted into a tool first and then the support structure can be produced in the same tool by over-pressing and/or over-injecting the first protective element. This allows the support structure to be bonded to the first protective element in an improved manner.
- the production of the support structure and the insertion of the second protective element can be carried out in one step.
- the second protective element can first be inserted into a tool and then the support structure can be produced in the same tool by over-pressing and/or over-injecting the second protective element. This allows the support structure to be bonded to the second protective element in an improved manner.
- Figure 2 a schematic, perspective sectional view of an underbody protection according to the invention according to the first embodiment
- Figure 3 a perspective view of an underbody protection according to the invention according to the first embodiment
- Figure 4 a perspective view of a support structure of an underbody protection according to the invention according to a second embodiment
- Figure 5 a schematic sectional view of an underbody protection according to the invention according to a third embodiment
- Figure 6 a schematic sectional view of an underbody protection according to the invention according to a fourth embodiment.
- Figure 1 shows a first embodiment of an underbody protection 1 according to the invention for a motor vehicle in a sectional view.
- the underbody protection 1 has a first protective element 10 and a second protective element 20 and a support structure 30 arranged in a sandwich-like manner between the first protective element 10 and the second protective element 20.
- the first protective element 10 and the second protective element 20 are connected to the support structure 30 on two opposite sides of the latter.
- the support structure 30 has a plurality of ribs 31 which extend orthogonally away from a base plate 32 of the support structure 30.
- the plurality of ribs 31 also extend between the first protective element 10 and the second protective element 20, so that a plurality of cavities 2 are formed between the first protective element 10 and the second protective element 20.
- the plurality of ribs 31 are monolithically connected to the support structure 30.
- the plurality of ribs 31 extend in the direction of the width and length of the support structure 30 and form a regular pattern.
- the first protective element 10 has a first connecting surface 11 and the second protective element 20 has a second connecting surface 21.
- the first protective element 10 is connected to the ribs 31 of the support structure 30 by means of the first connecting surface 11.
- the second protective element 20 is connected to the base plate 32 of the support structure 30 by means of the second connecting surface 21.
- the underbody protection 1 also has a connecting flange 33 arranged on the edge.
- the connecting flange 33 is monolithically connected to the support structure 30.
- the connecting flange 33 extends away from the support structure 30 in the direction of the longitudinal extension and the width extension of the base plate 32.
- the connecting flange 33 is designed as a connecting flange 33 that runs all the way around the support structure 30.
- the support structure 30 is designed in a shell shape.
- the support structure 30 has a boundary edge 34.
- the boundary edge 34 and the base plate 32 partially delimit a receiving volume 40.
- the first protective element 10 is accommodated in the receiving volume 40 of the support structure 30.
- the second protective element 20, then the support structure 30 and then the first protective element 10 are arranged starting from a substrate.
- the second protective element 20 In the event of a mechanical impact, for example, caused by an impact caused by a motor vehicle with an underbody protection 1 hitting the substrate, the second protective element 20 into the cavities 2 of the support structure 30. This allows energy from the impact to be converted into mechanical deformation energy. This improves the protection of the components of a motor vehicle arranged above the underbody protection 1, starting from a substrate.
- Figure 2 shows a perspective sectional view of the underbody protection 1 according to the first embodiment.
- the boundary edge 34 has a greater extension in the extension direction of the ribs 31 than the ribs 31.
- Figure 3 shows a perspective view of an underbody protection 1 according to the first embodiment.
- the first protective element 10 partially covers the plurality of ribs 31 of the support structure 30. This increases the flexibility of the underbody protection.
- Figure 4 shows a perspective view of a support structure 30 of a second embodiment of an underbody protection 1.
- the support structure 30 has connection receptacles 35 for receiving connecting elements. This allows the first protective element 10 and/or the second protective element 20 to be connected to the support structure by means of connecting elements such as screws or rivets.
- Figure 5 shows a third embodiment of an underbody protection 1 for a motor vehicle in a sectional view.
- the first protective element 10 partially projects into the connecting flange 33 of the support structure 30, so that the first connecting surface 11 of the first protective element 10 is connected both to the plurality of ribs 31 and to the connecting flange 33. This allows the bending stiffness of the underbody protection 1 to be increased further.
- Figure 6 shows a fourth embodiment of an underbody protection 1 for a motor vehicle in a sectional view.
- the cavities 2 are filled with a foam material 3.
- the first protective element 10 is connected to the base plate 32 of the support structure 30 by means of the foam material 3.
- the first protective element 10 can be connected to the foam material 3 by means of a micro-form fit.
- the base plate 32 can be connected to the foam material 3 in a material-locking manner.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022132714.0A DE102022132714B4 (de) | 2022-12-08 | 2022-12-08 | Unterbodenschutz für Kraftfahrzeuge, Kraftfahrzeug mit Unterbodenschutz |
| PCT/EP2023/084778 WO2024121336A1 (de) | 2022-12-08 | 2023-12-07 | Unterbodenschutz für kraftfahrzeuge, kraftfahrzeug mit unterbodenschutz und verfahren zum herstellen eines unterbodenschutzes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4630311A1 true EP4630311A1 (de) | 2025-10-15 |
Family
ID=89157731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23820906.8A Pending EP4630311A1 (de) | 2022-12-08 | 2023-12-07 | Unterbodenschutz für kraftfahrzeuge, kraftfahrzeug mit unterbodenschutz und verfahren zum herstellen eines unterbodenschutzes |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4630311A1 (de) |
| JP (1) | JP2026501444A (de) |
| CN (1) | CN120322371A (de) |
| DE (1) | DE102022132714B4 (de) |
| WO (1) | WO2024121336A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023117122B4 (de) * | 2023-06-29 | 2025-02-06 | Bayerische Motoren Werke Aktiengesellschaft | Schutzvorrichtung für einen elektrischen Energiespeicher sowie Anordnung |
| DE102023121548A1 (de) | 2023-08-11 | 2025-02-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Anordnung eines Unterfahrschutzes an einer Traktionsbatteriestruktur eines Kraftfahrzeugs |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8961724B2 (en) * | 2013-01-09 | 2015-02-24 | GM Global Technology Operations LLC | Structural composite panel with metallic foam core |
| US8864216B2 (en) * | 2013-01-18 | 2014-10-21 | Sabic Global Technologies B.V. | Reinforced body in white and method of making and using the same |
| DE102013017955A1 (de) * | 2013-10-29 | 2014-08-14 | Daimler Ag | Kraftfahrzeug mit einem Bodenelement |
| DE102016103411A1 (de) * | 2016-02-26 | 2017-08-31 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Batterieeinrichtung für ein wenigstens teilweise elektrisch angetriebenes Fahrzeug |
| DE102017221345A1 (de) * | 2017-11-28 | 2019-05-29 | Thyssenkrupp Ag | Hybride Unterbodenschutzvorrichtung für Batteriegehäuse |
| DE102018200999A1 (de) * | 2018-01-23 | 2019-07-25 | Volkswagen Ag | Bodenelement für ein Kraftfahrzeug |
| DE102019205422A1 (de) * | 2019-04-15 | 2020-10-15 | Audi Ag | Unterfahrschutz mit integrierter Kühleinrichtung, Batteriegehäuse, Batterie und Kraftfahrzeug |
| DE102019121682A1 (de) * | 2019-08-12 | 2021-02-18 | Bayerische Motoren Werke Aktiengesellschaft | Unterbodenmodul sowie Kraftfahrzeug |
| DE102019135323A1 (de) * | 2019-12-19 | 2021-06-24 | Audi Ag | Unterbodenschutzelement aus thermoplastischem Kunststoffmaterial für ein Kraftfahrzeug, Kraftfahrzeug mit einem Unterbodenschutzelement sowie Verfahren zur Herstellung eines Unterbodenschutzelements |
| US11208155B2 (en) * | 2020-01-13 | 2021-12-28 | GM Global Technology Operations LLC | Impact protection structures with layered honeycomb and corrugated designs and methods for making the same |
| DE102021106166A1 (de) * | 2021-03-15 | 2022-09-15 | Audi Aktiengesellschaft | Unterfahrschutzanordnung, Batterieanordnung, Kraftfahrzeug und Verfahren zum Erfassen eines Aufpralls eines Objekts auf ein Unterfahrschutzelement |
| DE102021118286B4 (de) * | 2021-07-15 | 2023-03-23 | Audi Aktiengesellschaft | Unterbodenschutzelement aus duroplastischem Material, Herstellungsverfahren und Kraftfahrzeug mit einem Unterbodenschutzelement |
-
2022
- 2022-12-08 DE DE102022132714.0A patent/DE102022132714B4/de active Active
-
2023
- 2023-12-07 JP JP2025533269A patent/JP2026501444A/ja active Pending
- 2023-12-07 WO PCT/EP2023/084778 patent/WO2024121336A1/de not_active Ceased
- 2023-12-07 EP EP23820906.8A patent/EP4630311A1/de active Pending
- 2023-12-07 CN CN202380083158.7A patent/CN120322371A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN120322371A (zh) | 2025-07-15 |
| JP2026501444A (ja) | 2026-01-15 |
| DE102022132714B4 (de) | 2025-05-22 |
| WO2024121336A1 (de) | 2024-06-13 |
| DE102022132714A1 (de) | 2024-06-13 |
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