Arrangement of a vibration damper on a component of a motor vehicle body

Abstract

Arrangement (3) of a vibration damper (4) on a component (5) of a body (2) of an electrically powered motor vehicle (1), in which the vibration damper (4) has at least one damping mass (6) for damping vibrations of the body (2) and the damping mass (6) is held at least indirectly on the component (5) via at least one bearing device (7), wherein the damping mass (6) is designed as an electronic device (8) of the motor vehicle (1) and is arranged on a longitudinal axis (26) of the motor vehicle (1), characterized in that the component (5) is designed as a luggage compartment tray (12) of the motor vehicle (1).

Description

[0001] The invention relates to an arrangement of a vibration damper on a component of a body of an electrically driven motor vehicle according to the preamble of patent claim 1.

[0002] DE 195 40 927 C2 discloses a vibration damper for a vehicle, having a vehicle component as the damper mass, wherein the damper mass is arranged on the vehicle so as to be pivotable about at least one first bearing in the damping direction, wherein the damper mass is supported on the vehicle in the damping direction via at least one elastic bearing element.

[0003] It is an object of the invention to provide an arrangement of a vibration damper on a component of a body of an electrically driven motor vehicle and an electrically driven motor vehicle so that the weight of the motor vehicle can be kept particularly low.

[0004] This object is achieved according to the invention by arranging a vibration damper on a component of a body of an electrically driven motor vehicle with the features of patent claim 1. Advantageous embodiments of the invention are the subject of the dependent patent claims and the description.

[0005] The invention relates to an arrangement of at least one vibration damper on a component of a body of an electrically driven or electrically powered motor vehicle. The motor vehicle is designed, for example, as a motor vehicle, in particular as a passenger car, commercial vehicle, or truck. For example, the motor vehicle or the body is designed as a convertible, which can in particular be referred to as a convertible. The vibration damper is arranged at least indirectly, in particular directly, on the component. The vibration damper is designed separately from the component.

[0006] The component can be understood, in particular, as a body component or an assembly of the body. The component can be formed in one piece or in multiple pieces or in multiple parts. The body is preferably designed as a self-supporting body. The motor vehicle is designed, for example, as a battery-electric vehicle or as a hybrid vehicle. The motor vehicle thus has at least one electric machine by means of which the motor vehicle can be driven, in particular purely electrically.

[0007] The vibration absorber has at least one absorber mass for damping or canceling vibrations of the body, in particular of the component. In other words, the vibrations of the body, in particular of the component, can be dampened or canceled by means of the absorber mass. This means, in particular, that the vibration absorber, by means of its mass, particularly referred to as the absorber mass, cancels or dampens vibrations of the body or into the body, for example vibrations that excite the wheels. Thus, because the vibration absorber is arranged on the component of the body, the vibrations of the body are preferably at least lower than if the vibration absorber were not arranged on the component or if the motor vehicle were free of the vibration absorber.

[0008] The damper mass is held at least indirectly, in particular directly, for example movably, on the component via at least one bearing device. In other words, the damper mass is fastened or arranged on the component, in particular directly, via the bearing device or by means of the bearing device, in particular movably or flexibly. The fact that the damper mass is held at least indirectly movably on the component via the bearing device can be understood in particular to mean that the damper mass is held at least indirectly, in particular directly, movably on the component via the bearing device relative to the component, in particular translationally and / or rotationally. The bearing device is, for example, part of the vibration damper. Alternatively, the bearing device can be formed separately from the vibration damper.

[0009] A vibration absorber can be understood, in particular, as a vibration damper. For example, a natural frequency of the vibration absorber, in particular of the absorber mass, is preferably specifically tuned to a resonance frequency of the body, in particular of the component, that is to be eliminated or eliminated. This means that when the vibration absorber or the absorber mass is excited via the component with its natural frequency, the body, in particular the component, then only performs particularly small vibrations, in particular movements. Thus, the absorber mass is intended, in particular, for the targeted elimination or damping of vibrations of the body, in particular of the component.

[0010] For example, the vibration absorber comprises at least one mass-spring system, which is formed by the absorber mass and a damper spring formed separately from the absorber mass. A natural frequency of the mass-spring system is preferably set to the resonance frequency or vibration frequency of the body, in particular of the component, that is to be eliminated or eliminated. In particular, the vibration absorber can extract vibration energy for its own vibration movements from the body, in particular of the component, at its natural frequency or in the range of its natural frequency. The vibration energy can be converted into heat through friction.

[0011] In order to be able to keep the weight, in particular the total weight, or the mass of the motor vehicle particularly low, the invention provides that the damper mass is designed, in particular at least partially or completely, as an electronic device of the motor vehicle. In other words, the damper mass is designed, in particular at least partially or completely, as a component that is intended as an electronic device for the motor vehicle. This means that the electronic device or the component is used as the damper mass. In particular, the electronic device is thus part of the vibration damper.

[0012] Furthermore, the damper mass is arranged on or in a longitudinal axis of the motor vehicle. In other words, the vehicle's longitudinal axis runs, in particular at least in part, through the damper mass. This means, for example, that a, in particular imaginary, intersection point or a, in particular imaginary, intersection line between the damper mass and the vehicle's longitudinal axis is arranged within the electronic device or the damper mass. In other words, a longitudinal plane of the motor vehicle extending perpendicular to a transverse axis of the motor vehicle runs through the damper mass. For example, a secondary purpose of the electronic device is thus to dampen or cancel vibrations, wherein the secondary purpose is preferably different from a primary purpose of the electronic device in or for the motor vehicle.

[0013] The electronic device can be understood, in particular, as an electronic component of the motor vehicle. The vehicle longitudinal axis can be understood, in particular, as a vehicle center axis or vehicle center axis of the motor vehicle, wherein the vehicle center axis extends in the vehicle longitudinal direction of the motor vehicle. The vehicle longitudinal plane can be understood, in particular, as a vehicle center plane or vehicle center plane. Thus, the vehicle longitudinal axis and / or the vehicle longitudinal plane are preferably arranged centrally in the motor vehicle in the vehicle transverse direction of the motor vehicle. The vehicle longitudinal axis and / or the vehicle longitudinal plane run, for example, through a center of mass of the motor vehicle.For example, the vehicle's longitudinal axis runs through the center of mass, at least in relation to the vehicle's transverse direction, whereby the vehicle's longitudinal axis can be positioned above or below the center of mass in the vehicle's vertical direction. This means, in particular, that the damper mass is not spaced from the center of mass in the vehicle's transverse direction.

[0014] The invention is based in particular on the following findings and considerations: In order to be able to particularly increase the comfort, in particular driving comfort, of the motor vehicle, vibration dampers, for example, are provided, in particular for damping vibrations of the body. In principle, it is conceivable to use masses already located in the motor vehicle, such as a twelve-volt battery, or additional masses, which can in particular be referred to as extra mass, as dynamic torsion dampers. Nevertheless, it can be particularly challenging to dampen the vibrations of the body, for example when the motor vehicle is a convertible. This can be particularly challenging in the case of a convertible, for example, because the convertible can usually have lower, in particular dynamic, flexural rigidity than a motor vehicle not designed as a convertible.The electrically driven convertible, which can in particular be referred to as an electric convertible, can have particularly low or lower bending stiffness, for example due to the lack of a tunnel, in particular a cardan tunnel, and / or the lack of a floor panel.

[0015] In contrast, the arrangement according to the invention can achieve particularly advantageous vibration behavior of the body, in particular of the component. The vibration absorber, with its absorber mass designed as an electronic device, can absorb or dampen the vibration inputs of the body, in particular those excited by the wheels, whereby the required rigidity, in particular the flexural rigidity, of the body can be kept particularly low. This means that, for example, a stiffer, in particular more flexurally rigid, design of the body can be dispensed with, which can usually be accompanied by an increase in the weight of the motor vehicle. As a result, the weight of the motor vehicle can be kept particularly low. Furthermore, the electronic device can be a mass that is already present or conventionally present in the electrically driven motor vehicle.This means that an existing mass can be used as a vibration damper. This allows the weight of the vehicle to be kept particularly low, especially since a vibration damper in the form of additional mass is no longer required.

[0016] Because the absorber mass is arranged on or in the vehicle's longitudinal axis, the absorber mass can be positioned as close as possible to the center of mass of the motor vehicle in relation to the vehicle's transverse direction. This enables particularly advantageous absorption behavior, in particular for absorbing bending vibrations. The absorber mass is particularly preferably arranged particularly far away from the center of mass in the vehicle's longitudinal direction. By arranging the absorber mass on the vehicle's longitudinal axis, the vibration inputs of the body can be absorbed or dampened, whereby the required rigidity, in particular bending rigidity, of the body can be kept particularly low. This means that, for example, a stiffer, in particular more flexurally rigid, design of the body can be dispensed with, which can usually be associated with an increase in the weight of the motor vehicle.This allows the weight of the vehicle to be kept particularly low.

[0017] In particular, the vibration damper mounted on the component can significantly increase the comfort of the motor vehicle. This allows, for example, comfort to be significantly increased while simultaneously keeping the weight of the vehicle particularly low.

[0018] In order to be able to keep the weight, in particular the total weight, or the mass of the motor vehicle particularly low, a further embodiment provides that the damper mass is designed, in particular at least partially or completely, as power electronics, in particular of the electric drive of the motor vehicle. This means that the electronic device is designed as the power electronics. In other words, the damper mass is designed, in particular at least partially or completely, as a component which is provided as power electronics for the motor vehicle. This means that the power electronics or the component is used as the damper mass. In particular, the power electronics is thus part of the vibration damper.For example, a primary purpose of power electronics is to convert electrical current, whereas a secondary purpose of power electronics is preferably to cancel or dampen oscillations.

[0019] Alternatively or additionally, the damper mass is designed as an acoustic output device. This means that the electronic device is designed as the acoustic output device. In other words, the acoustic output device is used as the damper mass. In particular, at least one acoustic signal can be output or generated by means of the acoustic output device, for example to at least one vehicle occupant of the motor vehicle. This means that a sound or sounds can be generated by means of the acoustic output device. In particular, the acoustic output device is thus part of the vibration damper. For example, the acoustic output device is a loudspeaker, in particular a subwoofer.For example, a primary purpose of the acoustic output device is to output the acoustic signal, wherein a secondary purpose of the acoustic output device is preferably to cancel or dampen the vibrations.

[0020] Overall, it can be seen that, for example, a mass already conventionally present in the motor vehicle in the form of the power electronics and / or the acoustic output device can be used as a damping mass or vibration absorber. This allows the weight of the motor vehicle to be kept particularly low, in particular because the vibration absorber in the form of additional masses can be dispensed with. Furthermore, the vibrations can be particularly well damped or absorbed by using the power electronics and / or the acoustic output device as a damping mass, especially since the mass of the power electronics and / or the acoustic output device can be particularly high or relatively high.Furthermore, the power electronics and / or the acoustic output device can already be located in a position particularly well-suited for vibration damping, or can be arranged in this position with minimal effort or space savings. This allows, for example, existing installation space to be used for the damper mass. This allows the vehicle to be designed with particularly low installation space requirements.

[0021] The electric drive of the motor vehicle can be understood in particular to mean an electric drive train of the motor vehicle. The electric drive preferably has the electric machine. The motor vehicle, in particular the electric drive or the electric drive train, preferably has at least one electrical energy store, which is designed, for example, as a battery or an accumulator. The electric drive or the electric drive train thus preferably has means for electrically driving the motor vehicle, in particular via the electric machine, and / or means for storing energy, such as the electrical energy store, and / or means for charging the electrical energy store.It can thus be seen that the electric drive or electric drive train preferably comprises a plurality of components, in particular electrical or electronic components, for which the power electronics can be provided. In particular, the power electronics contribute to the electrical propulsion of the motor vehicle, for example, in supplying the electrical energy storage device with electrical energy and / or in supplying the electric machine with electrical energy. Supplying the electrical energy storage device with electrical energy can be understood, in particular, as the charging of the electrical energy storage device.

[0022] In a further embodiment, the power electronics are provided for charging the electrical energy storage device of the motor vehicle. In other words, a voltage of an electrical current flow provided for charging the electrical energy storage device can be converted by means of the power electronics. The power electronics are thus designed, for example, as a charger or as an on-board charger (OBC). Because the power electronics are provided for charging the electrical energy storage device, a mass of the power electronics or of the OBC is, for example, particularly high, whereby a particularly advantageous vibration or damping behavior can be achieved by means of the vibration damper. Furthermore, the mass of the motor vehicle can be kept particularly low because, for example, a particularly large additional mass for the vibration damper can be dispensed with.For example, the mass of the power electronics or the OBC is at least 5 kilograms, for example, in particular precisely, 13 kilograms.

[0023] The electrical current flow can be provided, for example, by an external electrical energy source formed separately from the motor vehicle, such as a charging station. The electrical current flow provided by the external electrical energy source preferably runs via the power electronics when charging the electrical energy storage device. The power electronics are preferably part of the electric drive of the motor vehicle. In particular, the power electronics are thus a means for charging the electrical energy storage device.

[0024] In a further embodiment, it is provided that the vibration damper, in particular the damper mass, is arranged in a rear section of the motor vehicle. In other words, the vibration damper or the damper mass is located in the rear section of the motor vehicle. This means, in particular, that the component on which the damper mass or the vibration damper is arranged is arranged in the rear section. This can result in particularly advantageous vibration or damping behavior, whereby the comfort of the motor vehicle can be particularly increased. Furthermore, the installation space of the motor vehicle can be particularly advantageously designed by arranging the vibration damper in the rear section. The rear section can be referred to, in particular, as the rear structure.The rear end can be understood, in particular, as a rear portion of the motor vehicle relative to the longitudinal direction of the motor vehicle, whereby this portion can be referred to, in particular, as the rear end. The rear end is, for example, part of the body or at least partially formed by the body.

[0025] In a further embodiment, the vibration damper is arranged in the area of ​​a luggage compartment of the motor vehicle, in particular in the luggage compartment. In other words, the vibration damper is located at least near the luggage compartment. This allows for particularly advantageous vibration damping behavior. Furthermore, the installation space of the motor vehicle, in particular the body, can be designed particularly advantageously.

[0026] For example, the vibration damper is arranged in the luggage compartment area in the interior or exterior of the motor vehicle. The interior is, for example, a vehicle interior of the motor vehicle, particularly referred to as the passenger compartment. The exterior is, for example, arranged outside the interior. For example, the exterior is designed as a wet space of the motor vehicle. Preferably, a dry space, in particular the interior, is sealed off from the wet space by means of at least one sealing element.

[0027] In a further embodiment, the vibration damper is arranged in the area of ​​a luggage compartment tray of the motor vehicle, in particular the body. In other words, the vibration damper is located at least near the luggage compartment tray. This allows for particularly advantageous vibration damping behavior. Furthermore, the installation space of the motor vehicle, in particular the body, can be designed particularly advantageously.

[0028] Preferably, the component is designed as the luggage compartment tub of the motor vehicle. In other words, the component is the luggage compartment tub. This means that the vibration damper is arranged on the luggage compartment tub, with the damper mass being held at least indirectly, in particular directly, on the luggage compartment tub via the bearing device. Thus, the vibration damper, in particular the damper mass, is connected to the luggage compartment tub, in particular directly, in particular in the rear structure, for example fixedly or movably. Via the luggage compartment tub, for example, vibrations of the body can be particularly advantageously transmitted to the vibration damper or the damper mass, whereby the vibrations of the body can be dampened or damped particularly well. This can significantly increase the comfort of the motor vehicle.Furthermore, the installation space of the body can be designed particularly advantageously, especially in the area of ​​the luggage compartment tray.

[0029] For example, it may be necessary to geometrically adapt the luggage compartment tray to the electronic device used as a damper or damper mass. This means that the geometry of the luggage compartment tray is changed, for example, compared to the geometry of a conventional luggage compartment tray of a conventional motor vehicle that does not have a vibration damper designed as an electronic device, particularly in the area of ​​the luggage compartment tray. However, such adaptations or changes to the luggage compartment tray can be kept particularly small with the present arrangement. This allows the development effort or modification effort of the motor vehicle to be kept particularly low. In particular, the effects of the convertible in a vehicle architecture can thus be kept as low as possible.

[0030] Preferably, the vibration damper, in particular the damper mass, is arranged vertically below the luggage compartment tub of the motor vehicle. In other words, the luggage compartment tub is arranged vertically above or above the vibration damper, in particular the damper mass. Thus, the vibration damper, in particular the damper mass, is arranged vertically, for example, below the luggage compartment tub, in particular directly below it. This allows the installation space of the body to be designed particularly advantageously.

[0031] Preferably, the vibration damper, in particular the damper mass, is at least partially, in particular completely, covered by the luggage compartment tray in the vertical direction of the vehicle. In other words, the luggage compartment tray protrudes or covers the vibration damper at least partially, in particular completely, upwards in the vertical direction of the motor vehicle.

[0032] In a further embodiment, the bearing device is formed, at least in part, in particular entirely, from at least one flexible material. In other words, the bearing device is designed or configured as a flexible mounting, in particular for the damper mass. The damper mass can be held particularly advantageously to the component via the bearing device. This allows the vibrations of the body, for example, to be damped or absorbed particularly effectively.

[0033] Because the bearing device is formed at least partially from the flexible material, the damper mass is, for example, movable or loosely held on the component, in particular relative to the component. The relative mobility of the damper mass with respect to the component can be, for example, + / - 1 millimeter. Because the bearing device is formed from the flexible material, the bearing device can, for example, be designed as the damper spring of the mass-spring system. Thus, the damper mass can be set into vibration, for example via the, in particular elastic, bearing device in order to dampen or absorb the vibrations of the body, in particular of the component.In other words, the electronic device is connected to the component or to the body, particularly in the area of ​​the luggage compartment tray, via appropriately designed flexible bearings, in order to use the mass of the electronic device as an absorber or vibration damper.

[0034] In a further embodiment, the bearing device is formed, at least in part, from rubber. In other words, the flexible material from which the bearing device is formed, at least in part, is rubber. Thus, the bearing device is designed, for example, as a rubber bearing. This allows the damping mass to be connected to the component particularly advantageously, in particular in a particularly vibration-optimized manner, whereby, for example, the vibrations of the body can be particularly effectively absorbed or dampened.

[0035] Preferably, the vibration damper is designed as a bending damper. This means that the vibration damper is used as a bending damper, i.e. the electronic device or the mass of the electronic device is used as a bending damper. In other words, at least one movement of the body, in particular vibration, running about at least one bending axis of the body can be absorbed or dampened by means of the vibration damper. This means that the vibration damper is specifically designed to keep dynamic bending of the body, in particular of the component, particularly low. As a result, the bending stiffness of the motor vehicle can be kept particularly low, whereby the weight of the motor vehicle can be kept particularly low. Furthermore, the comfort of the motor vehicle can be particularly increased.The vibration damper designed as a bending damper is particularly advantageous in electrically powered motor vehicles, since an electrically powered motor vehicle typically cannot have a transmission tunnel, which can, for example, provide particularly increased bending rigidity in a combustion engine-powered motor vehicle. The bending damper can dampen bending vibrations of the body or keep the amplitudes of the bending vibrations particularly low. Preferably, the bending damper is not a torsion damper, meaning, in particular, it is not a vibration damper specifically designed to keep the amplitudes of torsional vibrations of the body particularly low.

[0036] A further aspect relates to an electrically driven motor vehicle, which in particular has an arrangement according to the invention. Advantages and advantageous embodiments of the arrangement according to the invention are to be regarded as advantages and advantageous embodiments of the further aspect, and vice versa.

[0037] The motor vehicle has a body, in particular a self-supporting one. Furthermore, the motor vehicle has at least one vibration damper, which is arranged on a component of the body, in particular at least indirectly or directly. The vibration damper has at least one damper mass intended or designed to dampen vibrations of the body, in particular of the component, which is held on the component at least indirectly, in particular directly, for example, movably or flexibly, via at least one bearing device.

[0038] In order to keep the weight of the motor vehicle particularly low, it is provided that the absorber mass is designed as an electronic device of the motor vehicle and is arranged on a longitudinal axis of the motor vehicle.

[0039] Further features of the invention emerge from the claims, the figures, and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the single figures, can be used not only in the respective specified combination, but also in other combinations or on their own.

[0040] The invention will now be explained in more detail using a preferred embodiment and with reference to the drawing. The single figure shows a schematic and perspective partial view of an inventive arrangement of a vibration damper on a component of a body of an electrically driven motor vehicle.

[0041] Fig. 1 shows a schematic and perspective partial view of an electrically driven motor vehicle 1. The motor vehicle 1 has a, in particular self-supporting, body 2. In particular, Fig. 1 shows a schematic and perspective partial view of the body 2. Furthermore, Fig. 1 an arrangement 3 of a vibration damper 4 on a component 5 of the body 2 of the motor vehicle 1.

[0042] The vibration damper 4 has at least one damper mass 6 for, in particular, specifically damping or canceling vibrations of the body 2, in particular of the component 5. Thus, the vibration damper 4 is designed or provided, in particular specifically, for damping or canceling the vibrations of the body 2. The damper mass 6 is held at least indirectly, in particular directly, on the component 5 via at least one bearing device 7.

[0043] For example, the damper mass 6 is held on the component 5 via the bearing device 7 so as to be movable along at least one direction of movement relative to the component 5, in particular one intended for damping. The direction of movement can in particular be referred to as the damping direction. In other words, the damper mass 6 is supported on the component 5 or the body 2, in particular at least directly or indirectly, via the bearing device 7 in the damping direction. The damping direction runs, for example, in the vehicle vertical direction and / or in the vehicle longitudinal direction and / or in the vehicle transverse direction of the motor vehicle 1. Preferably, the damping direction runs in the vehicle vertical direction.

[0044] In order to keep the weight of the motor vehicle 1 particularly low and, in particular, to simultaneously significantly increase the comfort of the motor vehicle 1, the damper mass 6 is designed as an electronic device 8 of the motor vehicle 1 and is arranged on or in a longitudinal axis 26 of the motor vehicle. In other words, the electronic device 8 can be used as a damper or vibration absorber.

[0045] The motor vehicle 1 preferably has an electric drive 9, by means of which the motor vehicle 1 can be driven. The electric drive 9 has at least one electric machine.

[0046] In order to be able to keep the weight of the motor vehicle 1 particularly low and, in particular, to simultaneously significantly increase the comfort of the motor vehicle 1, a further embodiment provides for the damper mass 6 to be designed as power electronics 8a, in particular of the electric drive 9, of the motor vehicle 1 and / or as an acoustic output device 8b of the motor vehicle 1. In other words, the power electronics 8a and / or the acoustic output device 8b can be used as a damper or vibration damper. This means that the electronic device 8 can be the power electronics 8a and / or the acoustic output device 8b.

[0047] Preferably, the power electronics 8a are provided for charging an electrical energy storage device 10 of the motor vehicle 1, in particular the electric drive 9. In other words, the damper mass 6 is designed as the power electronics 8a of the electrical energy storage device 10 or for the electrical energy storage device 10. Thus, the power electronics 8a is, for example, an on-board charger (OBC).

[0048] In the Fig. 1, the vibration damper 4, in particular the damper mass 6, is arranged in a rear section 11 of the motor vehicle 1, in particular the body 2. Preferably, the vibration damper 4, in particular the damper mass 6, is arranged in the area of ​​a luggage compartment 27 of the motor vehicle 1, in particular in the area of ​​a luggage compartment tray 12 of the motor vehicle 1 or the body 2. For example, the component 5 is designed as the luggage compartment tray 12. Thus, the vibration damper 4, in particular the damper mass 6, is arranged, for example, in particular directly, on the luggage compartment tray 12. In the embodiment shown in Fig. In the embodiment shown in Figure 1, the vibration damper 4, in particular the damper mass 6, is arranged in the vertical direction 13 of the motor vehicle 1 below the luggage compartment tray 12 of the motor vehicle 1. Thus, for example, a particularly permanently installed OBC is provided below the luggage compartment tray 12. In Fig. 1, the body 2 or the rear section 11 is shown from below or diagonally from below, whereby the vehicle vertical direction 13 in Fig. 1 runs vertically downwards.

[0049] For example, the luggage compartment 27, in particular a luggage compartment floor, of the motor vehicle 1 is partially formed by the luggage compartment tray 12. The luggage compartment tray 12 is preferably part of the body 2. For example, the body 2, in particular the rear section 11, has an end wall 14, wherein the vibration damper 4, in particular the damper mass, is preferably arranged in front of the end wall 14 in the longitudinal direction 15 of the motor vehicle 1. The end wall 14 is provided, for example, for attaching a rear bumper. For example, the end wall 14 is designed as a rear panel.

[0050] The body 2, in particular the rear section 11, has, for example, two longitudinal members 17 spaced apart from one another in the transverse direction 16 of the motor vehicle 1, which are preferably designed as rear longitudinal members 17. In the Fig. In the embodiment shown in Figure 1, the vibration damper 4, in particular the damper mass 6, is arranged in the vehicle transverse direction 16 between the longitudinal members 17. For example, a respective wheel house part 18 of a respective wheel house of the body 2 adjoins the respective longitudinal member 17.

[0051] In the Fig. 1, the body 2, in particular the rear section 11, has a cross member 19, which is preferably arranged in front of the vibration damper 4, in particular in front of the damper mass 6, and in particular in front of the end wall 14 in the vehicle's longitudinal direction 15. For example, the cross member 19 is designed as a wall which at least partially, in particular directly, delimits an interior of the motor vehicle 1, referred to in particular as the vehicle interior or passenger cell, in particular towards the rear in the vehicle's longitudinal direction. For example, the cross member 19 or the wall at least partially delimits the luggage compartment 27, in particular towards the front in the vehicle's longitudinal direction 15. The luggage compartment 27 can thus be separated from the interior by the cross member 19 or the wall.

[0052] In particular, when the electronic device 8 is configured as the acoustic output device 8b, the acoustic output device 8b is arranged, for example, in the luggage compartment 27. In particular, when the electronic device 8 is configured as the acoustic output device 8b, the acoustic output device 8b is arranged, for example, in the vehicle's vertical direction 13 above the luggage compartment tray 12, in particular, for example, directly on the luggage compartment tray 12.

[0053] For example, the body 2 has at least two side sills 20 spaced apart from one another in the vehicle transverse direction 16. For example, the body 2, in particular the rear section 11, has at least one cross member heel plate 21, which is in particular formed separately from the cross member 19 and preferably extends in the vehicle transverse direction 16 between the side sills 20. The cross member heel plate 21 here, for example, lies directly against the side sills 20. The cross member heel plate 21 is preferably provided or designed for, in particular directly, connecting at least one, in particular rear, row of seats of the motor vehicle 1. In the Fig.In the exemplary embodiment shown in Figure 1, the vibration damper 4, in particular the damper mass 6, is arranged behind the cross member heel plate 21 in the vehicle longitudinal direction 15. The cross member heel plate 21 can be understood in particular as a cross member having a heel plate, which is provided or designed in particular for connecting the at least one, in particular rear, row of seats of the motor vehicle 1.

[0054] In particular, the cross member heel plate 21 is arranged in front of the cross member 19 in the vehicle longitudinal direction 15.

[0055] For example, the vibration damper 4 has at least one housing element 22, in particular formed separately from the damper mass 6. Preferably, the housing element 22 at least partially, in particular completely, delimits at least one receiving space in which the damper mass 6 is arranged. Thus, the damper mass 6 is arranged, for example, at least partially, in particular completely, within the housing element 22. For example, the housing element 22 is held on the component 5, in particular the luggage compartment tray 12, via the bearing device 7, in particular at least indirectly or directly.

[0056] In a further embodiment, it is provided that the bearing device 7 is formed, at least in part, from a flexible material 23. Preferably, the bearing device 7 is formed, at least in part, from rubber 24. Thus, the bearing device 7 is designed, for example, as a rubber bearing.

[0057] For example, the bearing device 7 has a plurality of bearing points, in particular spaced apart from one another, for example four bearing points, via which the damper mass 6 is held at least indirectly, in particular directly, on the component 5, in particular the luggage compartment tray 12. The respective bearing points are arranged, for example, at respective corners of the damper mass 6 or the housing element 22. The respective bearing point is designed, for example, as a respective rubber bearing. For example, the vibration damper 4, in particular the damper mass 6, is held at four corners, in particular loosely, via a respective rubber bearing of the bearing device 7 on the component 5, in particular the luggage compartment tray 12, and thus on the body 2.

[0058] In the exemplary embodiment, the vibration damper 4 is designed as a bending damper 25. Thus, the electronic device 8, in particular the power electronics 8a or the OBC, can be used as a bending damper 25. Thus, the vibration damper 4 preferably functions as a bending damper 25, which is arranged, for example, as far away as possible from the center of gravity of the motor vehicle 1 in the vehicle's longitudinal direction and / or, for example, as close as possible to the center of gravity in the vehicle's transverse direction. In particular, the bending damper 25 thus differs from a torsion damper, which is usually arranged as far outward as possible in the vehicle's transverse direction. List of reference symbols 1 motor vehicle 2 Body 3 Arrangement 4 vibration dampers 5 Component 6 absorber mass 7 Storage facility 8 electronic device 8a Power Electronics 8b acoustic output device 9 electric drive 10 electrical energy storage 11 rear carriage 12 Luggage compartment tray 13 Vehicle vertical direction 14 End wall 15 Vehicle longitudinal direction 16 Vehicle transverse direction 17 longitudinal members 18 wheel house part 19 cross members 20 side skirts 21 Cross member heel plate 22 Housing element 23 flexible material 24 rubber 25 bending dampers 26 Vehicle longitudinal axis 27 Luggage compartment QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 19540927 C2

[0002]

Claims

[1] Arrangement (3) of a vibration damper (4) on a component (5) of a body (2) of an electrically driven motor vehicle (1), in which the vibration damper (4) has at least one damper mass (6) for damping vibrations of the body (2) and the damper mass (6) is held at least indirectly on the component (5) via at least one bearing device (7), characterized by that the absorber mass (6) is designed as an electronic device (8) of the motor vehicle (1) and is arranged on a longitudinal axis (26) of the motor vehicle (1). [2] Arrangement according to claim 1, characterized by that the absorber mass (6) is designed as power electronics (8a), in particular of an electric drive (9) of the motor vehicle (1), or as an acoustic output device (8b). [3] Arrangement (3) according to claim 1 or 2, characterized bythat the power electronics (8a) are provided for charging an electrical energy storage device (10) of the motor vehicle (1). [4] Arrangement (3) according to one of the preceding claims, characterized by that the vibration damper (4) is arranged in a rear section (11) of the motor vehicle (1). [5] Arrangement (3) according to one of the preceding claims, characterized by that the vibration damper (4) is arranged in the area of ​​a luggage compartment (27) of the motor vehicle (1). [6] Arrangement (3) according to one of the preceding claims, characterized by that the component (5) is designed as a luggage compartment tray (12) of the motor vehicle (1). [7] Arrangement (3) according to one of the preceding claims, characterized by that the vibration damper (4) is arranged in the vehicle vertical direction (13) below a luggage compartment tray (12) of the motor vehicle (1). [8] Arrangement (3) according to one of the preceding claims, characterized bythat the bearing device (7) is formed at least in regions from a flexible material (23). [9] Arrangement (3) according to claim 8, characterized by that the bearing device (7) is formed at least in regions from rubber (24). [10] Arrangement (3) according to one of the preceding claims, characterized by that the vibration damper (4) is designed as a bending damper (25).

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