Trunk well and motor vehicle with a trunk well

Abstract

Trunk recess (4) with a circumferential wall (7) and a floor (8) to define a trunk recess interior volume (9) which can be used as a trunk, wherein the trunk recess (4) has fastening means (10) to be able to secure the trunk recess (4) in a motor vehicle (1), wherein the trunk recess (4) has at least one means (11) for absorbing energy by deformation in the event of an impact, characterized in that the circumferential wall (7) has opposing side walls (19) and opposing transverse walls (20), wherein means (11) for absorbing energy by deformation are integrated into the opposing side walls (19), wherein one means (11) for absorbing energy is designed as a type of bellows (21) which is inserted into or connected to the two opposing side walls (19).

Description

[0001] The invention relates to a trunk recess and a motor vehicle with a trunk recess, in particular for an electrically powered motor vehicle.

[0002] Motor vehicles can have a trunk, particularly in the front, if, for example, the vehicle has a mid-engine or a rear-engine design. Such vehicles are known. Even in electrically powered vehicles, the arrangement of the at least one electric motor used for propulsion in the front of the vehicle typically provides space for a trunk.

[0003] The trunk is formed by a trunk recess, accessible from above when the trunk lid is open. According to current technology, this trunk recess is a plastic tray, similar to a tub, which defines the trunk's dimensions and protects it from external environmental influences such as dirt and water.

[0004] In electrically powered vehicles, such as electric vehicles, hybrid vehicles, etc., as well as in vehicles with combustion engines, a so-called crash structure must be provided to improve occupant safety in the event of a collision with an obstacle or another vehicle, in order to convert the kinetic energy into deformation. According to current technology, this is achieved in vehicles by means of transverse and longitudinal beams and crash boxes attached to them.

[0005] The DE 101 40 674 A1, DE 10 2019 200 892 A1, DE 10 2020 103 684 A1, DE 10 2011 100 323 A1, DE 10 2008 039 972 A1, DE 11 2012 006 244 T5 and US 2019 / 0 233 014 A1 show motor vehicles with a crash structure at the front of the vehicle.

[0006] However, in motor vehicles with a trunk in the front, there is also the possibility of further improving occupant safety.

[0007] The object of the present invention is to create a trunk recess and a motor vehicle with a trunk recess by means of which, or in which, the occupant safety in the event of an impact is further improved.

[0008] The problem relating to the boot well is solved by the features of claim 1.

[0009] One embodiment of the invention relates to a trunk well with a surrounding wall and a base to define an interior trunk volume that can be used as a trunk. The trunk well has fastening means to secure it in a motor vehicle and has at least one means for absorbing energy through deformation upon impact. This contributes to crash safety by allowing the trunk well to absorb kinetic energy through deformation energy. At low impact speeds, this deformation can be elastic, so that the deformation can be reversed once the impact is over. At higher impact speeds, however, the deformation can be plastic, requiring the trunk well to be replaced as a crash element.This allows for the creation of an easily replaceable component that increases occupant safety and can still be replaced cost-effectively should the need arise.

[0010] In one embodiment, it is also advantageous if at least one means of energy absorption through deformation is integrated into the trunk well and / or attached to it. This allows the energy to be absorbed either by the trunk well itself or by elements connected to it. Thus, the trunk well not only defines the trunk space but also performs an important function in the event of an impact, for example, a frontal or side impact.

[0011] It is particularly advantageous if at least one means of absorbing energy through deformation is a bumper and / or an impact absorber. The bumper and / or the impact absorber can be manufactured as a separate part or parts and attached to or integrated into the trunk liner, for example by injection molding or injection molding.

[0012] According to the invention, it is advantageous for the circumferential wall to have opposing side walls and opposing transverse walls, wherein means for energy absorption through deformation are integrated into the opposing side walls. This allows for a high level of effectiveness depending on the force distribution during impact.

[0013] According to the invention, it is also particularly advantageous if an energy absorption means is designed as a type of bellows, which is inserted into or connected to two opposing side walls. This achieves high efficiency with a small installation space.

[0014] In another embodiment, it is also advantageous to integrate means for energy absorption through deformation into the opposing transverse walls.

[0015] It is also particularly advantageous if an energy absorption means is designed as a type of bellows, which is inserted into at least one of the transverse walls, in particular into two opposing transverse walls or is connected to them.

[0016] It is particularly advantageous if the boot well is made of plastic, especially injection-molded or blow-molded. This allows for ideal shaping and easy integration.

[0017] It is particularly advantageous if at least one energy absorption element is injected into the plastic or manufactured as a blow-molded part with inserts. This allows for simple design and installation. In the event of an accident, the trunk liner can then be easily replaced.

[0018] The problem relating to the motor vehicle is solved by the features of claim 8.

[0019] One embodiment of the invention relates to a motor vehicle with a front and a rear, further comprising at least one trunk recess according to one of the preceding claims, which is / are integrated into the front and / or the rear. Advantageously, the trunk recess is arranged in the front, particularly in front of the front axle or at least partially between the front wheels.

[0020] It is also advantageous if the boot well is connected to parts of the vehicle body. This ensures that the boot well is securely fastened, so that it can absorb energy in the event of a collision and does not simply shift.

[0021] In another embodiment, it is advantageous if the trunk well is arranged between at least two supports and / or strut towers in the transverse direction of the vehicle and is connected to both supports and / or strut towers. This allows the trunk well to absorb lateral forces and results in a stiffening of the body in the transverse direction of the vehicle.

[0022] It is also advantageous if the at least two supports are two longitudinal members, two lower longitudinal members, and / or two upper longitudinal members of the vehicle body. This allows for a safe arrangement and good energy absorption, both in the longitudinal and transverse directions of the vehicle.

[0023] Furthermore, it is advantageous if the boot well is connected to at least one upper crossmember and / or lower crossmember arranged transversely to the vehicle's longitudinal direction. In this way, the boot well also serves to increase the rigidity of the front structure.

[0024] It can also be advantageous if the boot well is connected to a cooling module, for example. This allows the cooling module to be supported by the boot well even under longitudinal forces, enabling the boot well to absorb energy through deformation. Furthermore, the boot module can also incorporate support elements and mounting points for installing components such as headlights, horns, etc.

[0025] The invention will now be explained in detail using an exemplary embodiment and with reference to the drawing. The drawing shows: Fig. 1 a schematic representation of a motor vehicle front end, Fig. 2 a schematic representation of the boot well in the front of the vehicle, Fig. 3 a view of a mounting of the boot well to a carrier and Fig. 4 a sectional view of a side wall of the boot well.

[0026] The Fig. Figure 1 shows a schematic representation of a motor vehicle 1 with a front 2 and a rear 3.

[0027] As an example, a trunk recess 4 is arranged in the front 2, advantageously positioned in front of the front axle 6 under a front cover 5. Alternatively or additionally, at least one trunk recess 4 can also be arranged in the rear 3. In principle, a trunk recess 4 according to the invention can therefore be integrated into the front 2 and / or the rear 3.

[0028] The boot well 4 according to the invention has a circumferential wall 7 and a bottom 8 to define a boot well interior volume 9 which can be used as a boot for luggage etc.

[0029] The boot well 4 has fastening means 10, see also Fig. 2, by means of which the boot well 4 in the motor vehicle 1 can be securely fastened to the body 17.

[0030] According to the invention, the trunk recess 4 has at least one means 11 for absorbing energy by deformation in the event of an impact.

[0031] The Fig. Figure 2 schematically shows a trunk recess 4 as it is connected to parts 12, 13, 14, 15 and 16 of the body 17.

[0032] It can thus be seen that the trunk well 4 is arranged between at least two supports 12, 13 and / or strut towers 14 in the transverse direction of the motor vehicle 1 and is connected to the two supports 12, 13, which are present in pairs, and / or to the two strut towers 14. Advantageously, the trunk well 4 is connected both to the two supports 12, as longitudinal supports, and to the two supports 13, as upper longitudinal supports.

[0033] The at least two supports 12, 13 are advantageously two longitudinal supports 12, such as two lower longitudinal supports 12 and / or two upper longitudinal supports 13 of the body 17.

[0034] According to Fig. 2 the boot well 4 is also arranged between the two strut towers 14 and connected to them by means of fastening means 10.

[0035] In another embodiment, the boot well 4 can be connected to at least one upper cross member 16 and / or lower cross member 15 arranged transversely to the longitudinal direction of the vehicle, as is also the case Fig. 2 shows.

[0036] Alternatively or additionally, the boot well 4 can also be connected to a cooling module, which, however, in Fig. 2 is not recognizable.

[0037] According to the invention, the trunk recess 4 has means 11 for absorbing energy by deformation. This at least one means 11 or these means 11 is / are integrated into the trunk recess 4 and / or attached to the trunk recess 4.

[0038] This can at least be a means 11 for absorbing energy by deformation, a bumper and / or an impact absorber 18, which is arranged and attached to the outside of the boot well 4.

[0039] The Fig. Figure 2 shows that the trunk recess 4 has a circumferential wall 7 with two opposing side walls 19 and opposing transverse walls 20. The side walls 19 extend approximately in the longitudinal direction of the vehicle or at an acute angle thereto. The transverse walls 20 run approximately in the transverse direction of the vehicle. The walls 19 and 20 can be either straight or curved.

[0040] In an advantageous embodiment, means 11 for energy absorption through deformation are integrated into the opposing side walls 19 and / or into the opposing transverse walls 20. Fig. 2 can be seen that the means 11 are integrated into the opposing side walls 19.

[0041] In the illustrated embodiment, this is solved by means of a means 11 for energy absorption being designed as a kind of bellows 21, which is inserted into at least one of the side walls 19 and / or transverse walls 20.

[0042] The means 11 is preferably incorporated into or connected to the two opposing side walls 19 and / or the two opposing transverse walls 20. In the exemplary embodiment of the Fig. 2. The means 11 are inserted into the two side walls 19. The bellows, which is integrated into the respective side wall 19, can be seen. Fig. Figure 4 shows such a side wall 19 in horizontal section. The bellows 21, which is injected into the plastic 22 and forms a folded wall 23, can be seen.

[0043] At its end, the wall 23 is attached to the support 12 by means of the fastening device 10.

[0044] The Fig. Figure 3 shows the wall 23 from the side. The fastening by means of the fasteners 10 to the support 12 can be seen.

[0045] Advantageously, the boot well 4 is made of a plastic 22, in particular injection-molded. According to Fig. 3 and Fig. 4 is at least one means 11 for energy absorption injected into the plastic 22. Reference symbol list 1 motor vehicle 2 Bug 3 Rear 4 boot wells 5 Bow lids 6 Front axle 7 wall 8 Floor 9 trunk well internal volume 10 Fasteners 11 means 12 carriers 13 carriers 14 Strut tower 15 lower crossbeam 16 upper crossbeam 17 Bodywork 18 impact absorbers 19 side wall 20 transverse wall 21 Bellows 22 plastic 23 Wall

Claims

[1] Trunk recess (4) with a circumferential wall (7) and a base (8) to define a trunk recess interior volume (9) which can be used as a trunk, wherein the trunk recess (4) has fastening means (10) to secure the trunk recess (4) in a motor vehicle (1), wherein the trunk recess (4) has at least one means (11) for absorbing energy by deformation in the event of an impact, characterized by , that the circumferential wall (7) has opposing side walls (19) and opposing transverse walls (20), wherein means (11) for energy absorption by deformation are integrated into the opposing side walls (19), wherein a means (11) for energy absorption is designed as a type of bellows (21) which is inserted into or connected to the two opposing side walls (19). [2] Trunk recess (4) according to claim 1, characterized by, that at least one means (11) for absorbing energy by deformation is integrated into the trunk well (4) and / or attached to the trunk well (4). [3] Trunk recess (4) according to claim 1 or 2, characterized by , that at least one means (11) for energy absorption by deformation is a bumper and / or an impact absorber (18). [4] Trunk recess (4) according to claim 1, 2 or 3, characterized by , that means (11) for energy absorption by deformation are integrated into the opposing transverse walls (20). [5] Trunk recess (4) according to claim 1, 2, 3 or 4, characterized by , that a means (11) for energy absorption is designed as a type of bellows (21) which is inserted into at least one of the transverse walls (20), in particular is inserted into or connected to two opposing transverse walls (20). [6] Trunk recess (4) according to one of the preceding claims, characterized by, that the boot well (4) is made of a plastic (22), in particular is injection molded or is manufactured as a blow-molded part. [7] Trunk recess (4) according to claim 6, characterized by , that at least one means (11) for energy absorption is injected into the plastic (22) or is manufactured as a blow-molded part with inserts. [8] Motor vehicle (1) with a front (2) and with a rear (3), further comprising at least one trunk recess (4) according to one of the preceding claims, which is or are integrated into the front (2) and / or into the rear (3). [9] Motor vehicle (1) according to claim 8 with a body (17) wherein the trunk well (4) is connected to parts of the body (17). [10] Motor vehicle (1) according to claim 8 or 9, characterized by, that the boot well (4) is arranged between at least two supports (12, 13) and / or strut towers (14) in the transverse direction of the motor vehicle (1) and is connected to the two supports (12, 13) and / or strut towers (14). [11] Motor vehicle (1) according to claim 10, characterized by , that the at least two supports (12, 13) are two longitudinal supports (12, 13), two lower longitudinal supports (12) and / or two upper longitudinal supports (13) of the body (17). [12] Motor vehicle (1) according to claim 8, 9, 10 or 11, characterized by , that the boot well (4) is connected to at least one upper cross member (16) and / or lower cross member (15) arranged transversely to the longitudinal direction of the vehicle. [13] Motor vehicle (1) according to claim 8, 9, 10, 11 or 12, characterized by , that the boot well (4) is connected to a cooling module.

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