CN118215595A - Fixing arrangement of an energy accumulator housing on a body of an electrically drivable motor vehicle - Google Patents

Abstract

The invention relates to a fastening arrangement (1) of an energy storage housing (3) on a body (2) of an electrically drivable motor vehicle, the energy storage housing (3) being arranged below a floor system (7) on which a front end structure (10) having a respective longitudinal beam (12) is connected forward in a vehicle longitudinal direction (9), the rear end (14) of the longitudinal beam being connected to the floor system (7), wherein at least one support element (15) is arranged on a front side (16) of the energy storage housing (3), on which an associated rear end (14) of the longitudinal beam (12) is supported.

Description

Fixing arrangement of an energy accumulator housing on a body of an electrically drivable motor vehicle

Technical Field

The invention relates to a fastening arrangement of an energy storage housing to a body of an electrically drivable motor vehicle according to the preamble of claim 1.

Background

DE102018130503A1 discloses a support assembly for crash protection of an energy store, in particular a high-voltage energy store, of a motor vehicle, wherein the support assembly comprises an energy store, a vehicle body or a part of the vehicle body, which part has a vehicle floor section extending through the energy store in the motor vehicle, into which a load path for orienting force absorption in the vehicle body is formed in the event of an accident. The support assembly has one or more elongated rigid support profiles which are arranged between the energy store and the vehicle floor section and extend along the vehicle floor section and which are each inserted into a corresponding associated elongated recess of the vehicle floor section.

Disclosure of Invention

The object of the present invention is to provide a fastening arrangement of an energy store housing on a body of an electrically drivable motor vehicle, so that particularly advantageous accident behavior of the motor vehicle can be achieved and the range of the motor vehicle can be increased particularly during electric driving operation of the motor vehicle.

According to the invention, the object is achieved by a fastening arrangement of an energy store housing with the features of claim 1 on a body of an electrically drivable motor vehicle. Advantageous embodiments of the invention are the subject matter of the dependent claims and the description.

The invention relates to a fastening arrangement of an energy storage housing on a body of an electrically drivable motor vehicle. The motor vehicle is preferably designed as a passenger car, commercial vehicle or truck. The motor vehicle preferably has the fastening arrangement in its fully manufactured state. The body is preferably configured as a self-supporting body of a motor vehicle.

The motor vehicle is preferably designed as a particularly purely battery-powered motor vehicle or as a hybrid vehicle. For example, a motor vehicle has at least one electric machine, by means of which the motor vehicle can be driven electrically (in particular purely electrically). The motor vehicle embodied as a hybrid vehicle can have, in addition to the electric machine, an internal combustion engine, by means of which the motor vehicle can be driven. The motor vehicle can therefore be driven by the electric machine, in particular purely electrically, during electric driving operation.

The energy store housing is to be understood as meaning, in particular, an energy store housing for an electrical energy store of a motor vehicle. In the fully manufactured state of the electrical energy store, the electrical energy store preferably comprises an energy store housing. The accumulator housing at least largely, in particular completely, defines the receiving space of the electric accumulator. In other words, the accumulator housing at least largely, in particular completely, encloses the receiving space.

At least one energy storage element of the electrical energy storage device can be arranged in the receiving space. The accumulator element is provided for storing electrical energy. The energy storage element is preferably designed as a battery or as a battery cell. The energy storage element can therefore be configured as an energy storage cell, in particular as a battery cell. The electric machine can be supplied with electrical energy stored in the electric energy accumulator or the energy accumulator element, so that the motor vehicle can be driven by the electric machine, in particular in electric drive operation.

In order to be able to achieve particularly high electrical power for an electric drive, in particular a purely electric motor vehicle, the energy store or energy store element can have a voltage, in particular an electric operating voltage or a nominal voltage, which is preferably greater than 50 volts, in particular greater than 60 volts and preferably several hundred volts. The energy store or the energy store element is therefore preferably designed as a high-voltage component. Thus, the electrical energy store may in particular be referred to as a high voltage energy store. The energy store housing is therefore preferably designed as a high-voltage energy store housing.

The motor vehicle has an electrical energy store in its fully manufactured state. In the fully manufactured state of the motor vehicle, the at least one energy storage element, preferably a plurality of energy storage elements, is arranged in the energy storage housing or in the receiving space.

The energy store housing is arranged below a floor system of the motor vehicle with reference to the vehicle height direction of the motor vehicle. The fixed arrangement thus comprises an accumulator housing and a floor arrangement. In particular, a floor system is to be understood to mean a main floor of a motor vehicle or at least one floor element of a floor of a motor vehicle, in particular a main floor. Preferably, the vehicle body includes a floor apparatus.

A front end structure of the motor vehicle, which has a corresponding longitudinal beam, in particular two longitudinal beams, is connected to the floor system in the longitudinal direction of the motor vehicle forward, in particular at least indirectly or directly. In other words, the front end structure is arranged in front of the floor system in the longitudinal direction of the vehicle, wherein the front end structure and the floor system are connected to one another, in particular at least indirectly or directly. The front end structure is understood to mean, in particular, the region of the vehicle body or of the vehicle body-in-white which is in front with reference to the longitudinal direction of the vehicle. The front end structure may in particular be referred to as a front part of the vehicle.

The corresponding longitudinal beam may be referred to in particular as an engine longitudinal beam or as an engine longitudinal beam. In particular, when the front end structure has two longitudinal beams, the longitudinal beams are preferably spaced apart from one another in the transverse direction of the motor vehicle. The main extension direction of the longitudinal beam preferably extends at least approximately, in particular completely, in the longitudinal direction of the vehicle.

Provision is made, in particular with reference to the vehicle longitudinal direction, for the rear end of the longitudinal beam, in particular with reference to the vehicle height direction, to be connected above the accumulator housing and/or with reference to the vehicle longitudinal direction, in particular at least indirectly or directly, to the floor system in front of the accumulator housing. In other words, the rear end of the respective longitudinal beam is supported on the floor system, in particular in the longitudinal direction of the vehicle and/or in the height direction of the vehicle, at least indirectly, in particular directly, on the support region. The support region may be arranged above the accumulator housing in the vehicle height direction and/or in front of the accumulator housing in the vehicle longitudinal direction.

The energy storage housing is therefore preferably arranged below the respective longitudinal beam or the respective rear end in the vehicle height direction. The respective longitudinal members and the floor device are preferably connected to one another at least indirectly, in particular directly, by means of the support region.

For example, a first one of the stringers has a first rear end and a second one of the stringers has a second rear end. The first rear end and the second rear end are connected to the floor system above the accumulator housing, in particular with reference to the vehicle height direction, and/or in front of the accumulator housing with reference to the vehicle longitudinal direction. Preferably, the first rear end portion and the second rear end portion are spaced apart from each other by a distance, in particular in the transverse direction of the motor vehicle.

In order to achieve particularly advantageous accident behavior of the motor vehicle and in particular to increase the range of the motor vehicle during electric driving, it is provided according to the invention that at least one support element, in particular a coupling element, is arranged, in particular at least indirectly or directly, on the front side of the accumulator housing, on which the associated rear end of the respective longitudinal beam is supported. In other words, the rear end of the respective longitudinal beam assigned to the support element is supported on the accumulator housing, in particular on the front side of the accumulator housing, via a support element arranged on the front side of the accumulator housing, in particular rearward in the vehicle longitudinal direction and/or downward in the vehicle height direction. In other words, the longitudinal forces acting rearward in the longitudinal direction of the vehicle and acting on the respective longitudinal beam, in particular referred to as longitudinal load, and/or the torques acting about the transverse axis of the vehicle and acting on the respective longitudinal beam, can be supported by the rear end of the respective longitudinal beam on a support element arranged on the front side of the accumulator housing. The longitudinal forces acting on the respective longitudinal beam and/or the torques acting on the respective longitudinal beam can thereby be supported on the accumulator housing by the support element, in particular on the front side of the accumulator housing, for example by the thrust action of the accumulator housing, in particular the upper and/or lower housing of the accumulator housing, or can be transmitted to the accumulator housing. The respective rear end portion of the respective longitudinal beam may directly contact the support element, or the respective rear end portion may be spaced apart from the support element, in particular the respective rear end portion may be arranged behind the support element in the vehicle longitudinal direction.

Preferably, the supporting effect of the supporting element for supporting the torque is greater than the supporting effect for supporting the longitudinal force. It may be provided that no support of the longitudinal forces on the support element takes place.

Preferably, the longitudinal forces or longitudinal loads from the front of the vehicle are at least largely, in particular completely, supported on the floor system. In this case, no support of longitudinal forces or longitudinal loads on the accumulator housing can take place.

Preferably, the longitudinal force is supported at least for the most part, in particular only by the thrust action of the upper and/or lower shell of the accumulator housing, when the longitudinal force is supported or supportable on the support element.

The range of a motor vehicle is understood to mean, in particular, the distance that the motor vehicle can travel or travel through a charged energy store during electric driving operation without having to recharge the energy store. The range is thus understood to be in particular the purely electric range of the motor vehicle.

The longitudinal force or torque is preferably caused by an accident. This means that the longitudinal forces or torques can be caused by loads acting on the motor vehicle in the event of an accident. The longitudinal force or torque is thus understood to mean, in particular, a crash load, in particular a frontal crash load, for example, from the front of the vehicle.

The support element is configured separately from the accumulator housing and separately from the longitudinal beam. The support element is preferably constructed separately from the floor device. The support element may in particular be referred to as an adapter.

For example, the rear end of the first longitudinal beam, which is referred to as the first rear end, and/or the rear end of the second longitudinal beam, which is referred to as the second rear end, are assigned to a support element, on which the rear end of the first and/or second longitudinal beam is supported. Alternatively, the first rear end may be associated with a support element, on which the first rear end is supported, while the second rear end may be associated with a second support element, in particular a second support element which is configured separately from the support element or at a distance from the support element, on which the second rear end is supported.

The invention is based on the following recognition and consideration, inter alia: in the event of an accident of the motor vehicle, the load path, in particular the main load path, of the load acting on the motor vehicle as a result of the accident can extend past the respective longitudinal beam. In order to bring about particularly advantageous accident behavior of the motor vehicle, it can be provided that the load path extends at least partially, in particular completely, through the accumulator housing. In conventional fastening arrangements, it can be provided that the load path or the main load path extends through the energy storage housing, wherein longitudinal profiles or other separate support structures can be provided in the energy storage housing or in the receiving space, in particular for reinforcing the energy storage housing. The longitudinal profile can be used in particular to limit the installation space provided for the energy storage element or the battery cell, in particular what is known as the cell installation space or the energy storage installation space. As a result, the accumulator installation space cannot be used undisturbed for accumulator elements, in particular accumulator cells, which are referred to in particular as active materials. The volumetric energy density of the electrical energy store can thus be particularly low. Furthermore, in conventional fastening arrangements, a longitudinal structure can be provided above the accumulator housing in the vehicle height direction, which lengthens the load path or the main load path rearward in the vehicle longitudinal direction. This can be achieved in particular in terms of space technology, in particular in that, in the region of the longitudinal structure, a space for the foot space or the pedal of the vehicle interior can be provided.

In contrast, in the fastening arrangement according to the invention, the load path or the main load path, in particular the longitudinal forces and/or torques, can extend from the respective longitudinal beam via the support element to the energy storage housing or be transmitted to the energy storage housing. As a result, a continuous load path can be produced, which results in particularly advantageous accident behavior of the motor vehicle. For example, the safety of a motor vehicle, in particular what is known as passive safety, can be particularly increased. At the same time, in the fastening arrangement according to the invention, in particular by the corresponding longitudinal beams being supported on the support element, the longitudinal structure arranged in the receiving space can be dispensed with. In particular, the accumulator installation space or the single installation space can thereby be increased, whereby the volumetric energy density of the electrical energy accumulator can be increased in particular. In this way, the electric range of the motor vehicle can be increased in particular during electric driving operation of the motor vehicle if the motor vehicle has such a fastening arrangement.

The continuous load path is particularly advantageous in terms of structural mechanics, in particular for frontal crash supports which occur in the event of a frontal accident of the motor vehicle. The continuous load path may enable a particularly broad or as broad as possible load distribution, wherein longitudinal forces and/or torques may be introduced into the accumulator housing. This means that the accumulator housing can also be used to stabilize the vehicle body in addition to receiving the at least one accumulator element. The provision of the support element can thus activate the energy store housing with respect to its support potential (absu tzpotential). The energy storage housing can be coupled to the longitudinal beam, in particular mechanically, by means of the support element, in particular without the at least one energy storage element being compromised in the event of an accident of the motor vehicle.

Furthermore, the rigidity of the coupling point between the front part of the motor vehicle and the vehicle center can be particularly increased in a continuous load path. The accumulator housing can be constructed as a sandwich component, in particular together with its filling.

Furthermore, with the fastening arrangement according to the invention, the driving dynamics of the motor vehicle and/or the NVH characteristics of the motor vehicle can be improved in particular. This can be achieved in particular in that the front part or front end structure is coupled to the accumulator housing in a particularly rigid, in particular mechanically, manner by means of the fastening arrangement according to the invention. NVH is understood to mean, in particular, "noise, vibration, harshness". Furthermore, a particularly effective protection of the motor vehicle can be achieved by the fastening arrangement according to the invention when the motor vehicle is driving over an obstacle. Damage to the motor vehicle caused by the obstacle when driving over the obstacle can thereby be avoided or avoided.

It is preferably provided that the support element is arranged at least partially, in particular completely, below the longitudinal beam, in particular the rear end, or below the longitudinal beam in the vehicle height direction. In other words, the longitudinal members, in particular the rear end portions, are preferably arranged higher than the support elements in the vehicle height direction. In this way, a vertical offset of the reference vehicle height direction between the main load path and the accumulator housing or relative to a plane in which the accumulator housing is arranged can be eliminated. This means that longitudinal forces and/or torques can be transmitted from the longitudinal beam via the support element to the accumulator housing, which is arranged below the longitudinal beam in the vehicle height direction, whereby the load path, in particular the main load path, can extend through the accumulator housing. As a result, longitudinal forces and/or torques can be introduced into the accumulator housing from the stringers via the support element in a particularly advantageous manner. In this way, particularly advantageous, particularly reliable accident behavior of the motor vehicle and particularly effective construction of the fastening arrangement or of the vehicle body with respect to material use and weight can be achieved. That is, the structural scheme may be particularly effective.

Preferably, the load path extends through the support element and the accumulator housing, while the main load path does not extend through the support element and the accumulator housing. This means that no extension of the main load path through the support element and the accumulator housing may take place. Preferably, the main load path extends in the vehicle height direction above the accumulator housing, for example through the floor system.

In a further embodiment, it is provided that the longitudinal extension of the support element along which it extends in the longitudinal direction of the vehicle is covered at least largely, in particular completely, by the longitudinal beam, in particular by the rear end, in the vehicle height direction. In other words, at least one partial region of the support element extends below the longitudinal beam in the vehicle height direction. This means that the support element preferably has a coverage area, in particular extending in the longitudinal direction of the vehicle, in which the support element is covered by the longitudinal beam in the vehicle height direction. The longitudinal forces and/or torques can thus be supported in a particularly advantageous manner from the stringers via the support element on the accumulator housing. The design can thus be constructed simultaneously in a particularly reliable and particularly efficient manner.

In a further embodiment, it is provided that the support element is connected at least indirectly, in particular directly, to the longitudinal beam via at least one connection point in a coverage area in which the support element is covered by the longitudinal beam in the vehicle height direction. In other words, the support element or the stringer comprises a support point by means of which the support element and the stringer are connected to one another at least indirectly, in particular directly, wherein the connection point is arranged in the coverage area. The support element can thus be held particularly securely on the longitudinal beam. In this way, particularly advantageous accident behavior of the motor vehicle can be achieved, whereby, for example, the safety of the motor vehicle can be particularly increased.

Preferably, the support element is connected at least indirectly, in particular directly, to the longitudinal beam and/or to the floor system in the coverage area by at least one second connection point, in particular at a distance from the connection point in the longitudinal direction of the vehicle. The front and rear connection of the support element to the longitudinal beam can thus be achieved, for example, by means of the connection points. This means that two or more connection points from the support element to the stringers and/or floor panel devices can be provided.

Alternatively or additionally, it may be provided that the support element is connected at least indirectly, in particular directly, to the floor device via at least one, in particular two, of the connection points. Here, the connection points, in particular two or more connection points, may be located in the coverage area or in particular spaced apart from the coverage area in the vehicle longitudinal direction backwards.

In a further embodiment, it is provided that the support element is connected, in particular at least indirectly or directly, to the accumulator housing. In other words, the support element is at least indirectly, in particular directly, fastened to the accumulator housing. The support element can thereby be held particularly securely on the accumulator housing. For example, the support element is connected to the accumulator housing in a force-and/or form-and/or material-locking manner. For example, the support element is welded and/or glued and/or screwed to the accumulator housing.

In a further embodiment, it is provided that the energy store housing has a housing wall, in particular on or at its front side. In other words, the support element is arranged on the housing wall on which the rear end of the longitudinal beam assigned to the support element is supported. A cavity of the energy store housing or in particular a structural element which is formed separately from the housing wall and the energy store element is preferably arranged between the housing wall and an energy store installation space provided in the energy store housing, in which the at least one energy store element of the electric energy store can be arranged. In other words, the receiving space comprises an energy storage device installation space and a cavity, wherein the cavity is arranged between the energy storage device housing and the energy storage device installation space in the longitudinal direction of the vehicle. Alternatively or additionally, the structural element is arranged in the vehicle longitudinal direction between the housing wall and the accumulator installation space in the receiving space.

By means of the hollow space, damage to the energy storage element can be avoided when the housing wall is deformed, which may be caused by the longitudinal beam being supported on the energy storage housing by the support element. As a result, possible deformations, which can be caused in particular by longitudinal forces and/or torques, can in particular in the region of the support element not strike the energy storage element. In this way, the electrical energy store, in particular the energy store element, can be protected against damage in the event of an accident of the motor vehicle, or the damage can be kept particularly small.

The electrical energy store or the energy store housing can be reinforced in particular by structural elements. In this way, possible deformations of the energy store wall in the event of an accident can be avoided or kept particularly small. In this way, damage to the electrical energy store or the energy store element can be avoided or kept particularly small. The structural element is therefore preferably provided for stabilizing the energy store housing, in particular the housing wall. The structural element can thus be referred to in particular as a stabilizing element.

Preferably, the structural element stabilizes the connection of the support element to the accumulator housing. The structural element preferably increases the effectiveness of the support element, i.e. when the energy storage housing has a structural element, the longitudinal beam can be supported particularly advantageously on the energy storage housing by the support element. The structural element is preferably arranged inside the accumulator housing. The structural element is thus at least largely, in particular completely, surrounded by the energy store housing or the housing wall.

A cavity is understood to mean, in particular, a gap between the accumulator housing and the accumulator installation space or the accumulator element. The cavity may be at least partially, in particular completely, filled by the structural element. This means that the accumulator housing with the structural element may or may not have a cavity.

The structural element or the cavity is arranged behind the accumulator housing with reference to the vehicle longitudinal direction and in front of the accumulator installation space or the accumulator element with reference to the vehicle longitudinal direction.

For example, the support element is composed of at least one, in particular fiber-reinforced plastic. Alternatively, the support element may be made of a material other than plastic. The support element may be constructed in one piece or in multiple pieces. In particular when the support element is constructed in one piece, the support element can be produced by means of pressing, in particular extrusion and/or by means of casting. The support element can thus be constructed as an extrusion or casting. In particular, when the support element is constructed in multiple parts, the support element can be embodied as a welded structure.

In a further embodiment, it is provided that the support element has at least two support surfaces, in particular in the vehicle height direction and/or in the vehicle longitudinal direction, which are spaced apart from one another, by means of which the support element is supported on the energy store housing in the vehicle longitudinal direction. In other words, the support element is supported by the support surface on the accumulator housing in the vehicle longitudinal direction rearward, wherein the support element has an intermediate region between the support surfaces, in particular in the vehicle height direction and/or in the vehicle longitudinal direction, by means of which no support of the support element at or on the accumulator housing takes place. In this way, the load transmitted by the support element to the accumulator housing can be introduced into the accumulator housing particularly advantageously during the support. This can be achieved in that a longitudinal load, which is transmitted to the accumulator housing when the support element is supported on the accumulator housing and extends in the longitudinal direction of the vehicle, is introduced into the accumulator housing, in particular into the cover plate and/or the base plate of the accumulator housing, in particular only as a thrust load. The cover plate is arranged above the floor plate in the height direction of the motor vehicle, wherein a receiving space, in particular an energy store installation space, is provided between the cover plate and the floor plate. As a result, the receiving space, in particular the accumulator installation space and thus the accumulator element, can be kept at least partially, in particular also predominantly or completely unloaded. In this way, damage to the energy storage element in the event of an accident of the motor vehicle can be avoided or in particular avoided.

In a further embodiment, at least one construction element, in particular configured separately from the support element, is provided, by means of which the axle carrier of the motor vehicle can be supported on the support element. In other words, forces caused by a motor vehicle accident and acting on the axle carrier, in particular in the longitudinal direction of the motor vehicle, can be supported on the support element by the structural element or transmitted to the support element. In this way, the accident behavior of the motor vehicle can be improved in particular. This can be caused in particular by the fact that the forces acting on the axle carrier can be supported or guided particularly well. For example, the construction element is configured as a thrust zone.

In the fully manufactured state of the motor vehicle, the axle carrier is preferably arranged below the longitudinal beam. The force applied to the axle carrier is thus the load of the load path below the vehicle height direction, which is arranged, for example, below the load path, in particular the main load path, or below the longitudinal force. The underlying load path can thus be supported by the construction element in addition to the load path, in particular beyond the main load path. In other words, forces from the lower plane of the motor vehicle, in particular extending in the longitudinal direction of the motor vehicle, can be supported on the support element or the energy accumulator housing.

Preferably, the axle carrier is configured as a front axle carrier of a motor vehicle. Thus, the axle bracket may be referred to as a front axle bracket, in particular. The axle carrier is understood to mean, in particular, a subframe or an auxiliary carrier. For example, the axle, in particular the front axle, of a motor vehicle can be connected or mechanically coupled to the vehicle body via an axle bracket.

It is preferably provided that the support element has at least one connection point via which the axle carrier of the motor vehicle can be supported or supported on the support element, in particular at least indirectly, for example via a structural element or directly. Preferably, it is provided that the support element is connectable or connected to the support element, in particular at least indirectly, for example by means of a construction element or directly. In other words, the support element is mechanically or mechanically coupled to the axle carrier via the connection point. The support element can be coupled to the structural element via a connection point. Alternatively, the support element can be mechanically coupled directly to the axle carrier, whereby the structural element can be omitted. Thus, the load path, in particular the lower load path outside the main load path, can be supported by the connection point. In this way, the passive safety of the motor vehicle can be particularly increased. In addition, the driving dynamics of the motor vehicle and/or the NVH characteristics of the motor vehicle can be improved in particular in that the front structure or the front part can be coupled particularly rigidly to the energy store housing. Furthermore, the securing arrangement may achieve particularly good protection against obstacles.

In a further embodiment, the support element is configured as a calibration element of a motor vehicle. This can be understood in particular as: the support element can be embodied in several embodiment variants or, if desired, can be omitted, wherein the embodiment variants differ in terms of their shape or geometry, for example in terms of their wall thickness. Alternatively or additionally, the embodiment variants may differ in terms of their materials. For example, different embodiments of the support element can be used for different structural variants of the motor vehicle. In this case, different design variants of the motor vehicle have, for example, at least similar accumulator housings, in particular identical accumulator housings, and/or similar stringers, in particular identical stringers, and/or similar floor systems, in particular identical floor systems. In this way, various structural variants of the motor vehicle can be realized by means of the support element or an embodiment variant of the support element, i.e. the support element can be integrated in different derivatives of the vehicle frame of the motor vehicle. The variety of the energy store housing for different structural variants of the motor vehicle can thus be kept particularly small. In other words, the support element can be used as a calibration element in the vehicle frame in order to be able to integrate as few variants of the accumulator housing as possible into as many different derivatives of the vehicle frame as possible. For example, the wall thickness and/or the material of the support element can be targeted as a function of the expected load or the strength of the expected reaction force, in particular as a function of the mass of the motor vehicle.

In a further embodiment, it is provided that the at least one second support element, which is spaced apart from the support element, in particular in the transverse direction of the motor vehicle, is arranged on a front side of the accumulator housing, on which the associated rear end of the second longitudinal beam is supported. In other words, at least one second support element, which is coupled, for example connected, to the second longitudinal beam, in particular mechanically, and is spaced apart from the support element, in particular in the vehicle transverse direction, is supported on the energy store housing in the vehicle longitudinal direction at a rear. The second support element may in particular be referred to as a second coupling element.

Preferably, the first longitudinal beam is supported on the accumulator housing by a support element and the second longitudinal beam is supported on the accumulator housing by a second support element, wherein the support element is arranged on the front side of the accumulator housing. For example, the first rear end is assigned to the support element, on which the first rear end is supported, and the second rear end is assigned to the second support element, on which the second rear end is supported.

In particular, when the support elements are spaced apart from each other in the vehicle transverse direction, the first support element may be referred to as a left support element, for example, and the second support element may be referred to as a right support element, for example.

Since the support elements are spaced apart from one another, in particular in the transverse direction of the vehicle, a construction space without support elements is provided between the support elements. The construction space can be utilized in other ways. For example, a module connection for an electrical energy store can be arranged there. The installation space of the fastening arrangement can thus be kept particularly small or can be implemented particularly advantageously by the support elements being spaced apart from one another.

At least one body component of the body, which is formed separately from the respective longitudinal beam, can be coupled, in particular mechanically, to the energy store housing by means of the respective support element. That is to say, the vehicle body component can be supported on the accumulator housing by the support element, in particular in the longitudinal direction of the vehicle and/or in the transverse direction of the vehicle and/or in the height direction of the vehicle. For example, the body component is a body or a dash panel of a motor vehicle, in particular a transverse dash panel.

The vehicle body component can be spaced apart from the accumulator housing in the vehicle transverse direction, in particular inward, wherein the support element can be arranged between the vehicle body component and the accumulator housing. This means that the body component can be coupled in particular mechanically to the accumulator housing in the transverse direction of the motor vehicle via the support element. For example, the vehicle body member is arranged in the center of the vehicle in a state where the vehicle is completely manufactured with reference to the vehicle lateral direction. Preferably, the body of the motor vehicle, in particular the fastening arrangement, has at least one transverse beam which is formed separately from the respective support element. The main direction of extension of the cross beam preferably extends at least approximately, in particular completely, in the transverse direction of the vehicle. The cross members are preferably configured separately from the longitudinal members and separately from the floor system. The cross member may be spaced apart from the support element in the vehicle longitudinal direction and/or in the vehicle height direction. Preferably, the transverse beam is arranged in front of the support element in the longitudinal direction of the motor vehicle and/or above the support element in the height direction of the motor vehicle with reference to the direction of travel of the motor vehicle.

The respective longitudinal beam, in particular the rear end of the respective longitudinal beam, may directly contact the respective support element. Alternatively, a structural component, in particular a so-called bracket or connecting bracket, which is configured separately from the respective longitudinal beam and the respective support element may be provided between the respective longitudinal beam, in particular the rear end of the respective longitudinal beam, and the respective support element. Preferably, the structural component is arranged below the respective longitudinal beam in the vehicle height direction and above the respective support element in the vehicle height direction. The respective longitudinal beam or the rear end of the respective longitudinal beam can thus be supported on the support element by the structural component, in particular in the vehicle height direction.

Preferably, the main direction of extension of the structural component extends at least approximately, in particular completely, in the vehicle transverse direction of the motor vehicle. The structural component can therefore be referred to in particular as a transverse structure or a transverse structural element. The structural component is preferably constructed separately from the cross beam.

Drawings

Other features of the invention will be apparent from the claims and from the drawings, and from the description of the drawings. The features and feature combinations mentioned in the description above and those mentioned in the following description of the figures and/or only shown in the figures can be applied not only in the respectively given combination but also in other combinations or alone.

The invention will now be explained in more detail by means of a preferred embodiment and with reference to the accompanying drawings.

In the drawings:

fig. 1 shows a schematic partial sectional view of a motor vehicle with a fastening arrangement according to the invention; and

Fig. 2 shows a schematic partial sectional view of a motor vehicle with a fastening arrangement according to the invention according to a further embodiment; and

Fig. 3 shows a schematic partial sectional view of a motor vehicle with a fastening arrangement according to the invention according to a further embodiment; and

Fig. 4 shows a schematic and perspective partial view of a motor vehicle with a fastening arrangement according to the invention; and

Fig. 5 shows a schematic partial sectional view of a motor vehicle with a fastening arrangement according to the invention according to a further embodiment; and

Fig. 6 shows a schematic partial sectional view of a motor vehicle with a fastening arrangement according to the invention according to a further embodiment.

Detailed Description

In the drawings, identical or functionally identical elements are provided with the same reference numerals.

Fig. 1 shows a schematic and perspective partial sectional view of a fastening arrangement 1 of an energy storage housing 3 on a body 2 of an electrically drivable motor vehicle. Fig. 1 therefore shows a partial view of a motor vehicle with a fastening arrangement 1. The motor vehicle has an electrical energy store 4 in its fully manufactured state. The accumulator housing 3 is designed as a housing for an electrical accumulator 4. Thus, the electric accumulator 4 comprises an accumulator housing 3.

The accumulator housing 3 at least largely, in particular completely, defines a receiving space 5 for the electric accumulator 4. In other words, the accumulator housing 3 at least largely, in particular completely, encloses the receiving space 5. At least one energy storage element 6 of the electric energy storage 4 can be arranged in the receiving space 5. This means that in the completely manufactured state of the motor vehicle, the at least one energy storage element 6, preferably a plurality of energy storage elements 6, is arranged in the energy storage housing 3 or in the receiving space 5. In the electric energy store 4 or in the corresponding energy store element 6, electrical energy can be stored, by means of which an electric machine of the motor vehicle can be supplied, whereby the motor vehicle can be driven by means of the electric machine, in particular in electric driving operation. Preferably, the respective energy accumulator element 6 is configured as a battery cell of the electric energy accumulator 4.

The vehicle body 2 has a floor apparatus 7. The floor system 7 is preferably configured as a main floor of the vehicle body 2. The accumulator housing 3 is arranged below the floor device 7 in the vehicle height direction 8. Preferably, the energy store housing 3 is arranged directly on the floor system 7 or is held directly on the floor system 7. The accumulator housing 3 is therefore preferably in direct contact with the floor device 7.

A front end structure 10 of the vehicle body 2 is connected forward, in particular directly, in the vehicle longitudinal direction 9 to the floor system 7. In other words, the front end structure 10 is arranged in front of the floor device 7 in the vehicle longitudinal direction 9 with respect to the travel direction 11 of the motor vehicle. The front end structure 10 has at least two stringers 12. One of the stringers 12 is shown in fig. 1. A second one of stringers 12 is not shown in fig. 1. The stringers 12 can be spaced apart from each other in the vehicle transverse direction 13. The respective rear end 14 of the respective longitudinal beam 12 is connected, in particular directly, to the floor system 7 above the accumulator housing 3, in particular with reference to the vehicle height direction 8.

In order to be able to achieve particularly advantageous accident behavior of the motor vehicle and at the same time to be able to increase the range of the motor vehicle during electric driving operation of the motor vehicle, it is provided that at least one support element 15 is arranged on a front side 16 of the accumulator housing 3, on which an associated rear end 14 of at least one of the respective longitudinal members 12 is supported downward, in particular in the vehicle height direction 8. In other words, the longitudinal members 12, in particular the respective rear end portions 14, are supported on the accumulator housing 3 by means of the support elements 15, in particular rearward in the vehicle longitudinal direction 9 and/or downward in the vehicle height direction 8. In the event of an accident of the motor vehicle, the longitudinal forces 17 caused by the accident and acting on the longitudinal beams 12 and/or the torques 18 caused by the accident and acting on the longitudinal beams 12 can thus be supported on the energy storage housing 3 or transmitted to the energy storage housing 3 via the support element 15. This means that in the event of an accident of the motor vehicle, a load path (in particular referred to as the main load path), which may include a load of longitudinal forces 17 and/or torques 18, extends through the longitudinal members 12, in particular the respective rear end 14, the support element 15 and the energy store housing 3. In this way, a continuous load path, in particular through the accumulator housing 3, can be achieved by means of the support element 15.

The body 2 is thus constructed particularly rigidly with respect to a frontal accident, in particular a so-called frontal collision, of the motor vehicle. Thus, the passive safety of the motor vehicle or of the motor vehicle occupants can be particularly increased. Furthermore, the driving dynamics of the motor vehicle can be improved in particular. Furthermore, the receiving space 5 can be increased or enlarged in particular. This can be achieved, for example, in that the receiving space 5 can be kept in a longitudinal configuration without the accumulator housing 3 or the electric accumulator 4. As a result, the accumulator installation space 19 of the receiving space 5, in particular what is known as a single installation space, can be increased in particular. Corresponding energy storage elements 6 can be arranged or disposed in the energy storage installation space 19. Thus, the energy density of the electric accumulator 4 can be particularly increased. In this way, the range of the motor vehicle during electric driving can be increased in particular.

The longitudinal force 17 preferably extends rearward in the vehicle longitudinal direction 9. The torque 18 preferably extends around a rotation axis extending in the vehicle transverse direction 13.

In this embodiment, a second support member 20 is provided that is spaced apart from the support member 15 in the vehicle transverse direction 13. The second support element 20 is arranged on the front side 16 of the accumulator housing 3, on which the associated rear end of the second of the stringers is supported. In other words, a second of the stringers is supported on the accumulator housing 3, in particular downward in the vehicle height direction 8 and/or rearward in the vehicle longitudinal direction 9, by means of a second support element 20. In the event of an accident of the motor vehicle, the longitudinal force 17 and/or the torque 18 can thus be supported from the second longitudinal beam by the second support element 20 on the accumulator housing 3 or transmitted to the accumulator housing 3. This means that the longitudinal forces 17 and/or torques 18 of the respective longitudinal beam 12 are supported on the respective support element 20 or the accumulator housing 3.

The rear end 14 of the longitudinal beam 12 is therefore assigned to a support element 15, on which the rear end 14 of the longitudinal beam 12 is supported, and the rear end of the second longitudinal beam is assigned to a second support element 20, on which the rear end of the second longitudinal beam is supported. This means that the stringers 12 are supported on the support element 15 and the second stringers are supported on the second support element 20. The stringer 12 may in particular be referred to as a first stringer.

It is preferably provided that no support of the longitudinal beam 12 on the second support element 20 and no support of the second longitudinal beam on the support element 15 takes place. This means that the stringers 12 are preferably not supported on the second support element 20 and that the second stringers are preferably not supported on the support element 15.

As a result of the provision of the two support elements 15, 20, the respective support areas 21, 22, in particular the support surfaces, of the respective support elements 15, 20 can be particularly large. The respective longitudinal beam 12 can thus be supported particularly advantageously, in particular particularly reliably. On a respective first one 21 of the respective support areas, the respective longitudinal beam 12, in particular the respective rear end 14, is supported on the respective support element 15, 20. On a respective second support region 22 of the support regions, the respective support element 15, 20 is supported on the accumulator housing 3 or on the front side 16 of the accumulator housing 3.

Since the support elements 15, 20 are spaced apart from each other in the vehicle transverse direction 13, a free space 23 can be provided between the support elements 15, 20. The free space 23 can be used in the fully manufactured state of the motor vehicle for components of the motor vehicle, in particular, which are configured separately from the accumulator housing 3 and the body 2. This means that the components can be arranged or can be arranged in the free space 23. For example, the component is a modular connection on the electrical energy store 4. This means that the installation space of the fastening arrangement can be kept particularly small or can be designed particularly advantageously.

Preferably, the first support element 15 is spaced apart to the left in the vehicle transverse direction 13 with reference to the center axis of the motor vehicle or body 2 extending in the vehicle longitudinal direction 9, and the second support element 20 is spaced apart to the right in the vehicle transverse direction 13 with reference to the center axis of the motor vehicle. Thus, the first support element 15 may in particular be referred to as left support element 15 and the second support element 20 may in particular be referred to as right support element 20.

In this embodiment, the respective support element 15, 20 is arranged at least partially, in particular completely, below the respective longitudinal beam 12, in particular the respective rear end 14. In this case, it is preferably provided that the respective support element 15, 20 is covered at least largely, in particular completely, by the respective longitudinal beam 12 in the vehicle height direction 8 along its respective longitudinal extension 24 extending in the vehicle longitudinal direction 9. In other words, the respective support element 15, 20 extends in the respective coverage area 24a extending in the longitudinal extension direction 24 below the respective longitudinal beam 12 in the vehicle height direction 8. The respective longitudinal beam 12 can thus be supported particularly advantageously on the respective support element 15, 20. The longitudinal force 17 and/or the torque 18 can thus be supported particularly well on the respective support element 15, 20 or on the accumulator housing 3.

The accumulator housing 3 has a housing wall 25 on which the respective support element 15, 20 is supported, in particular directly back in the vehicle longitudinal direction 9. The main direction of extension 26 of the housing wall 25 preferably extends obliquely to the vehicle height direction 8 or obliquely to the vehicle longitudinal direction 9.

In a further embodiment, it is provided that a cavity 27 of the energy storage housing 3 is arranged between the housing wall 25 and an energy storage installation space 19 provided in the energy storage housing 3 or in the receiving space 5, in which energy storage installation space the respective energy storage element 6 of the electric energy storage 4 can be arranged or is arranged. In other words, the receiving space 5 comprises the accumulator installation space 19 and the cavity 27, wherein the cavity 27 is arranged between the housing wall 25 and the accumulator installation space 19 in the vehicle longitudinal direction 9. In this way, damage to the respective energy storage element 6 can be avoided or reduced in the event of an accident of the motor vehicle. For example, the housing wall 25 can be deformed in the event of an accident of the motor vehicle, in particular due to the longitudinal forces 17 and/or the torques 18. In this case, the deformed housing wall 25 can sink into the cavity 27, in particular the deformed housing wall 25 does not penetrate into the accumulator installation space 19. Thereby, mechanical contact between the deformed housing wall 25 and the corresponding energy accumulator element 6 can be avoided.

Alternatively or additionally, at least one structural element 27a of the energy store housing 3, which is formed separately from the housing wall 25, can be arranged between the housing wall 25 and the energy store installation space 19. The accumulator housing 3, in particular the housing wall 25, can thus be particularly stable or reinforced. In this way, for example, the stiffness of the accumulator housing 3 or the housing wall 25 can be increased in particular. In this way, damage to the respective energy accumulator element 6 in the event of an accident of the motor vehicle can be avoided or in particular avoided. Fig. 2 shows a motor vehicle or a fastening arrangement 1 according to a further embodiment, in which a structural element 27a is arranged in an accumulator housing 3.

In the embodiment shown in fig. 2, the structural element 27a completely fills the cavity 27. Alternatively, the structural element 27a may partially fill the cavity 27, whereby the fastening arrangement 1 in its fully manufactured state partially has the cavity 27.

In the exemplary embodiment shown in fig. 1 and 2, at least one longitudinal structural element 28 is provided, which is connected back in the vehicle longitudinal direction 9, in particular directly, to the respective longitudinal beam 12. The longitudinal structural element 28 is arranged above the floor system 7 in the vehicle height direction 8 and is supported downward in the vehicle height direction 8, in particular directly on the floor system 7. Preferably, the longitudinal structural elements 28 are connected in particular directly to the respective longitudinal members 12 and to the floor system 7.

In the embodiment shown in fig. 1 and 2, a side sill beam 29 is provided, which is connected in the vehicle transverse direction 13, in particular directly outwards, to the floor installation 7. Preferably, the side sill beam 29 is connected to the floor apparatus 7.

Fig. 3 shows a schematic and perspective partial sectional view of a fastening arrangement 1 or a motor vehicle according to a further embodiment. The respective support element 15, 20 is in this case connected in particular directly to the respective longitudinal beam 12 via at least one respective connection point 30 in a covering region 24a, in which the respective support element 15, 20 is covered by the respective longitudinal beam 12 in the vehicle height direction 8. This means that the first support element 15 is connected, in particular directly, to the first longitudinal beam 12 via a first connection point 30, and that the second support element 20 is connected, in particular directly, to the second longitudinal beam via a second connection point spaced apart from the first connection point 30 in the vehicle transverse direction 13. In the embodiment shown in fig. 3, the respective support element 15, 20 is in particular directly screwed to the respective longitudinal beam. The respective support element 15, 20 can thereby be held particularly securely on the respective longitudinal beam 12.

In the exemplary embodiment shown in fig. 3, the energy storage housing 3 is connected, in particular directly, in particular screwed, to the floor system 7 via at least one fastening point 31, in particular at a distance from the respective connection point 30 in the vehicle longitudinal direction 9.

The respective support element 15, 20 is preferably connected directly to the accumulator housing 3, in particular to the housing wall 25. For example, the respective support element 15, 20 is welded and/or glued and/or screwed to the accumulator housing 3. The respective support element 15, 20 can thereby be held particularly securely on the accumulator housing 3. In this way, the safety of the motor vehicle can be particularly increased.

In a further embodiment, it is provided that the respective support element 15, 20 has two support surfaces 32, 33, in particular in the vehicle height direction 8 and/or in the vehicle longitudinal direction 9, which are spaced apart from one another, by means of which the respective support element 15, 20 is supported back in the vehicle longitudinal direction 9, in particular directly on the energy store housing 3, in particular on the housing wall 25. In other words, the respective support element 15, 20 is supported by a first of the support surfaces 32, in particular directly in the vehicle longitudinal direction 9, on a cover 34, in particular referred to as an upper shell, of the accumulator housing 3 and by a second of the support surfaces 33, in particular directly on a floor 35, in particular referred to as a lower shell, of the accumulator housing 3. The loads, in particular longitudinal loads, which are transmitted to the accumulator housing 3 when the respective support element 15, 20 is supported on the accumulator housing 3 are thereby preferably introduced or transmitted only as respective thrust loads into the cover plate 34 and the base plate 35. Thus, for example, longitudinal forces 17 can be introduced into cover plate 34 or base plate 35. As a result, the receiving space 5, in particular the accumulator installation space 19, can be kept as free as possible. In this way, damage to the respective energy accumulator element 6 can be avoided or in particular reduced in the event of an accident of the motor vehicle. The cover 34 can be understood in particular as a housing cover of the accumulator housing 3. The floor is understood to mean, in particular, the bottom of the accumulator housing 3.

Thus, the support region 22 includes the support surfaces 32, 33. The support region 22 or the support surfaces 32, 33 are supported on the rear side of the respective support element 15, 20 with reference to the vehicle longitudinal direction 9 or the travel direction 11. The rear side of the respective support element 15, 20 faces the front side 16 of the accumulator housing 3 or housing wall 25. Between the support surfaces 32, 33 in the vehicle height direction 8, a further surface 33a is arranged on the rear side of the respective support element 15, 20, which is spaced apart from the energy storage housing 3, in particular the housing wall 25. A cavity is provided here between the further surface 33a and the accumulator housing 3, in particular the housing wall 25. The further surface 33a and the accumulator housing 3, in particular the housing wall 25, are thereby preferably not connected to one another in a force-transmitting manner. The surface 33a can be understood in particular as the middle region of the respective support element 15, 20, wherein the middle region is arranged between the support surfaces 32, 33 in the vehicle height direction 8. No support of the respective support element 15, 20 at or on the accumulator housing takes place via the intermediate region.

In the embodiment shown in fig. 3, the first support surface 32 is arranged above the second support surface 33 in the vehicle height direction 8. The first support surface 32 is arranged in front of the second support surface 33 with reference to the direction of travel 11 of the motor vehicle. The cover plate 34 is arranged above the floor plate 35 with respect to the vehicle height direction 8. Here, the cover plate 34 and the bottom plate 35 are spaced apart from each other. The cover plate 34 and the bottom plate 35 partially define the receiving space 5.

In the embodiment shown in fig. 3, the cover plate 34 and the base plate 35 are each configured as a double layer. In this way, the rigidity of the cover 34 or the base 35 can be increased in particular.

Fig. 4 shows a schematic and perspective partial view of a motor vehicle or floor system 7 from below obliquely from the front. As can be seen from fig. 4, the fastening arrangement 1 has a transverse beam 36 which is formed separately from the respective longitudinal beam 12, the respective support element 15, 20, the floor system 7 and the energy store housing 3. The main direction of extension of the transverse beam 36 preferably extends at least approximately, in particular completely, in the vehicle transverse direction 13. In the embodiment shown in fig. 4, the cross beams 36 are spaced apart from the respective support elements 15, 20. The transverse beam 36 is arranged higher in the motor vehicle or body 2 in the motor vehicle height direction 8 than the respective support element 15, 20 and is arranged further forward in the motor vehicle longitudinal direction 9 than the respective support element. The body 2 or the fastening arrangement 1 can be stabilized particularly well by the transverse beam 36. In this way, the passive safety of the motor vehicle can be particularly increased.

In the exemplary embodiment shown in fig. 4, the motor vehicle comprises a heating air conditioning device 37 in its fully manufactured state. The heating air conditioner 37 is preferably arranged above the cross member 36 in the vehicle height direction.

In the exemplary embodiment shown in fig. 4, the respective support element 15, 20 has at least one connection point 38 via which an axle carrier 39, in particular a front axle carrier, of the motor vehicle can be supported, in particular directly, on the respective support element 15, 20, or the respective support element 15, 20 can be connected, in particular directly, to the connection point. In other words, the axle bracket 39 may be connected to the vehicle body 2 by the respective support element 15, 20. In the fully manufactured state of the motor vehicle, the respective support element 15, 20 can therefore be connected to the axle carrier 39 via the respective connection point 38 or can be supported on the axle carrier 39. The respective support element 15, 20 and thus the energy storage housing 3 can thereby be arranged in a load path that extends in the vehicle height direction 8 below the main load path and in particular is referred to as the lower load path. This means that, for example, in the event of an accident of the motor vehicle, a lower longitudinal force, which acts on the axle carrier 39 as a result of the accident and extends in the vehicle height direction 8 under the longitudinal force 17, is supported by the axle carrier 39 via the respective support element 15, 20 on the accumulator housing 3 or is transmitted to the accumulator housing 3. In this way, the accident behavior of the motor vehicle can be improved in particular. For example, the passive safety of the motor vehicle can be particularly increased.

In the exemplary embodiment shown in fig. 4, the axle carrier 39 is supported on the respective support element 15, 20 in the vehicle longitudinal direction 9 rearward and in the vehicle transverse direction 13 laterally, in particular inward. In other words, the axle carrier 39 and its connection to the respective support element 15, 20 or to the vehicle body 2 is arranged partially beside the support element 15, 20 in the vehicle transverse direction 13 or immersed in the respective support element 15, 20. This means that the connection points 38 can be arranged in or on the front side 40 of the respective support element 15, 20, wherein the front side 40 extends in the vehicle height direction 8 and in a direction extending obliquely to the vehicle longitudinal direction 9 or obliquely to the vehicle transverse direction 13. The axle carrier 39 can thus be connected particularly advantageously, in particular particularly reliably, to the respective support element 15, 20.

In the exemplary embodiment shown in fig. 4, the axle carrier 39 is connected directly to the respective support element 15, 20 via a connection 38. This means that the axle carrier 39 and the respective support element 15, 20 are in direct contact via the connection point 38.

Alternatively, at least one structural element 41, which is formed separately from the respective support element 15, 20, in particular from the axle carrier 39, the accumulator housing 3 and the respective longitudinal beam 12, can be provided, by means of which the axle carrier 39 of the motor vehicle can be supported or supported on the respective support element 15, 20. This means that the axle carrier 39 can be supported or supported on the respective support element 15, 20 by means of the structural element 41 and the connection point 38. In this way, in the event of an accident of the motor vehicle, lower longitudinal forces can be transmitted particularly advantageously from the axle carrier 39 to the support elements 15, 20 or the energy accumulator housing 3. In this way, the passive safety of the motor vehicle can be particularly increased. Fig. 5 shows a schematic and perspective partial section through a motor vehicle or a fastening arrangement 1. In the embodiment shown in fig. 5, a construction element 41 is shown. Preferably, the construction element 41 is constructed as a thrust zone.

Preferably, the axle bracket 39 is connectable or connected to the support elements 15, 20 by means of the construction element 41. This means that the support elements 15, 20 can be connected or connected to the axle carrier 39 of the motor vehicle via the connection points 38 and the construction element 41.

In the exemplary embodiment shown in fig. 5, a housing part 42 of the energy store housing 3 is arranged in the vehicle height direction 8 between the respective longitudinal beam 12, in particular the respective rear end 14, and the respective support element 15, 20. The respective longitudinal beam 12, in particular the respective rear end 14, is thus supported on the respective support element 15, 20 by the housing part 42. Preferably, the housing part 42 is formed by the cover plate 34.

In the embodiment shown in fig. 5, a transverse structural element 43 is provided which is constructed separately from the transverse beam 36. The transverse structural element 43 is arranged in the vehicle height direction between the respective longitudinal beam 12, in particular the respective rear end 14, and the respective support element 15, 20, in particular the housing part 42. The respective longitudinal beam 12, in particular the respective rear end 14, can thus be supported on the respective support element 15, 20 by means of the transverse structural element 43, in particular the housing part 42. Preferably, the main direction of extension of the transverse structural element 43 extends at least approximately, in particular completely, in the vehicle transverse direction 13. Preferably, the transverse structural element 43 is directly connected to the accumulator housing 3, in particular to the housing part 42.

Fig. 6 shows a schematic and perspective partial section through a motor vehicle or fastening arrangement 1 according to a further embodiment. The transverse structural element 43 is in this case constructed in the form of a shell or as a (metal) sheet.

In the exemplary embodiment shown in fig. 6, the axle carrier 39 is supported directly on the respective support element 15, 20 or is connected to the respective support element 15, 20 via a connection 38.

List of reference numerals

1. Fixed arrangement structure

2. Vehicle body

3. Accumulator housing

4. Energy accumulator

5. Receiving space

6. Energy accumulator element

7. Floor apparatus

8. Height direction of vehicle

9. Longitudinal direction of vehicle

10. Front end structure

11. Direction of travel

12. Longitudinal beam

13. Transverse direction of vehicle

14. Rear end portion

15. Support element

16. Front side

17. Longitudinal force

18. Torque moment

19. Accumulator construction space

20. Second support element

21. A first support region

22. A second support region

23. Free space

24. Longitudinal extension direction

24A coverage area

25. Housing wall

26. Main direction of extension

27. Cavity cavity

27A structural element

28. Longitudinal structural element

29. Side sill beam

30. Connection point

31. Fixed point

32. A first supporting surface

33. A second supporting surface

33A surface

34. Cover plate

35. Bottom plate

36. Cross beam

37. Heating air conditioner

38. Connection part

39. Axle bracket

40. Front side

41. Construction element

42. Housing part

43. Transverse structural element

Claims (10)

1. The energy storage housing (3) is arranged below a floor system (7) on which a front end structure (10) having a respective longitudinal beam (12) is connected forward in the longitudinal vehicle direction (9), the rear end (14) of which is connected to the floor system (7), characterized in that at least one support element (15) is arranged on a front side (16) of the energy storage housing (3), on which the associated rear end (14) of the longitudinal beam (12) is supported.

2. The fastening arrangement (1) according to claim 1, characterized in that the support element (15) is arranged at least partially below the longitudinal beam (12) in the vehicle height direction (8).

3. The fastening arrangement (1) according to claim 2, characterized in that the support element (15) is covered at least largely by the longitudinal beam (12) in the vehicle height direction (8) along its longitudinal extension (24) extending in the vehicle longitudinal direction (9).

4. A fastening arrangement (1) according to claim 3, characterized in that the support element (15) is connected with the longitudinal beam (12) via at least one connection point (30) in a coverage area (24 a), in which coverage area the support element (15) is covered by the longitudinal beam (12) in the vehicle height direction (8).

5. The fixation arrangement (1) according to any of the preceding claims, wherein the support element (15) is connected with the accumulator housing (3).

6. The fastening arrangement (1) according to any one of the preceding claims, characterized in that the energy storage housing (3) has a housing wall (25) on which the support element (15) is supported back in the vehicle longitudinal direction (9), a cavity (27) or a structural element (27 a) of the energy storage housing (3) being arranged between the housing wall (25) and an energy storage installation space (19) provided in the energy storage housing (3), in which at least one energy storage element (6) can be arranged.

7. The fastening arrangement (1) according to any one of the preceding claims, characterized in that the support element (15) has two support surfaces (32, 33) spaced apart from one another, by means of which the support element (15) is supported back on the accumulator housing (3) in the vehicle longitudinal direction (9).

8. The fastening arrangement (1) according to any one of the preceding claims, characterized in that at least one construction element (41) is provided, which is configured separately from the support element (15) and by means of which an axle carrier (39) of a motor vehicle can be supported on the support element (15).

9. The fastening arrangement (1) according to any one of the preceding claims, characterized in that the support element (15) has at least one connection point (38) by means of which an axle carrier (39) of a motor vehicle can be connected to the support element (15).

10. The fastening arrangement (1) according to any one of the preceding claims, characterized in that a second support element (20) spaced apart from the support element (15) is arranged on a front side (16) of the accumulator housing (3), on which an assigned rear end of a second one of the stringers is supported.