Mounting arrangement and method for mounting a storage housing for an energy storage device on the side sills of a motor vehicle body

Abstract

Mounting arrangement (10, 30, 35, 40, 45) of a storage housing (11) for an energy storage device on side sills (12) of a motor vehicle body, in which the storage housing (11) is arranged at a distance (13) from the side sills (12) forming a gap (14) between the side sills (12) and the storage housing (11), wherein at least one component (17) expandable in a distance direction (Y) by means of an actuable mechanism (20, 22) is inserted into the gap (14) after the storage housing (11) has been arranged, which is expanded in such a way as to fasten the storage housing (11) to the side sills (12) forming a clamping force acting between the side sills (12) and the storage housing (11) via the expandable component (17); as well as a method for mounting a storage housing (11) for an energy storage device on side sills (12) of a motor vehicle body.

Description

[0001] The invention relates to a mounting arrangement of a storage housing for an energy storage device, e.g., a traction battery, on the side sills of a motor vehicle body, e.g., an electrically or partially electrically powered motor vehicle. The invention further relates to a method for mounting a storage housing for an energy storage device, e.g., a traction battery, on the side sills of a motor vehicle body, e.g., an electrically or partially electrically powered motor vehicle.

[0002] In practice, it is common for electric or partially electric vehicles to connect a traction battery to the side sills of the body using bolts. The traction battery can be housed in a storage unit (also called a battery box) which is bolted to the side sills. Due to the point-fixed bolting of the traction battery or storage unit and its positioning between the side sills, a gap is created during installation. This means the traction battery or storage unit is only connected to the body at a single point and therefore contributes little to the vehicle's rigidity. Furthermore, tolerances in the connection between the traction battery or storage unit and the side sills pose a significant challenge and lead to increased costs and / or disadvantages in terms of weight and installation space.

[0003] DE 10 2022 130 550 A1 discloses a mounting arrangement for a storage housing for an energy storage device on two side sills of a motor vehicle body. The storage housing can be arranged between the two side sills at a distance from them and can be fastened by means of a component that is expandable in the direction of distance and has an actuable mechanism for this purpose, by the component exerting a clamping force.

[0004] DE 10 2018 133 048 B3 describes a connecting element for attaching an energy storage device to a side sill.

[0005] DE 10 2008 041 078 A1 discloses an arrangement of a traction battery between the side sills of a motor vehicle. Energy-absorbing deformation elements are provided within a space between the side sills and the traction battery in the event of a side impact.

[0006] DE 10 2020 133 960 A1 discloses an energy storage floor assembly for an electrically powered motor vehicle with a storage housing that is arranged at a distance from a side sill, forming a gap. The gap is filled with an expandable foam material that is positively connected to the side sill and the storage housing via recesses.

[0007] DE 10 2018 109 296 B3 discloses an arrangement for an electric vehicle with a traction battery located in the area of ​​a body floor and with a side sill arranged laterally to the traction battery. A body element is provided between the traction battery and the side sill, the position of which is adjustable in a vehicle width direction in order to precisely align the mounting points on the left and right sides of the body.

[0008] Against this background, the invention aims to provide a mounting arrangement and a method for mounting a storage housing for an energy storage device to the side sills of a motor vehicle body, enabling improved integration of the storage housing's structural stiffness into the body's overall stiffness. This should be advantageously usable in a side-crash concept for the motor vehicle. Simultaneously, the invention aims to enable mounting of the storage housing to the side sills in a way that can compensate for component tolerances over a wide range, thereby simplifying component manufacturing and the assembly process, and reducing costs.

[0009] This problem is solved by an assembly arrangement with the features of claim 1 and by an assembly method with the features of claim 9. Further, particularly advantageous embodiments of the invention are disclosed in the respective dependent claims.

[0010] It should also be noted that the conjunction “and / or” used herein, which stands between two features and links them together, is always to be interpreted in such a way that in a first embodiment of the object according to the invention only the first feature may be present, in a second embodiment only the second feature may be present, and in a third embodiment both the first and the second feature may be present.

[0011] The invention relates to a mounting arrangement for a storage housing for an energy storage device, e.g., a traction battery, on the side sills of a motor vehicle body, e.g., an electrically or partially electrically powered vehicle. The storage housing is arranged at a distance from the side sills, forming a gap between the side sills and the storage housing. According to the invention, at least one component, expandable in one direction by means of an actuating mechanism, is inserted into the gap after the storage housing has been arranged between the side sills. The mounting arrangement provides that the expandable component is expanded by means of the actuating mechanism in such a way as to fasten the storage housing to the side sills, creating a clamping force acting between the side sills and the storage housing via the expandable component.

[0012] The direction of distance or the direction of the distance is to be understood as a direction which is essentially defined by the course of a shortest distance between a surface section of the respective side sill and an opposite, spaced-apart surface section of the storage housing.

[0013] The actuated mechanism of the expandable component is to be understood as a mechanical device that converts input forces and movements caused by actuation into desired output forces and movements in order to effect the expansion of the component in the direction of distance. For this purpose, the mechanism comprises movable, interconnected mechanical components. Therefore, chemically or physically expandable foam materials are excluded as the component expandable by means of the actuated mechanism within the meaning of the invention.

[0014] The expandable component can be a separate, independent component, distinct from the side sills and the storage housing.

[0015] The mechanism can be operated manually, e.g. by a person, or automatically, e.g. by a controllable actuation which may be based on electromechanical, electromagnetic and / or electropneumatic principles.

[0016] Since the clamping force secures the storage housing between the side sills, there is no need to attach the housing to the side sills using screws. Furthermore, the expandable component can accommodate a wide tolerance range, for example, in the distance between the side sills or in the dimensions of the storage housing, because the gap between the side sills and the storage housing is completely bridged by the expandable component after the housing is installed.

[0017] Depending on the specific design of the contact area between the side sill or storage housing and the expandable component, the clamping force in the contact area preferably creates a linear or planar connection (i.e., line or surface pressure) of the expandable component to the respective side sill and the storage housing. Since the expandable component bridges the gap, it is able to transmit forces between the respective side sill and the storage housing and absorb energy. This allows for a positive integration of the storage housing's structural stiffness into the vehicle body stiffness, which in turn can be advantageously utilized in a side-impact crash test concept.

[0018] Furthermore, using the storage housing to accommodate the energy storage unit allows for the flexible arrangement of energy storage units with identical dimensions on vehicles with different body widths or lengths, or with different side sill spacings, by using the storage housing in combination with the expandable component as a mechanical adapter. This allows components from different vehicle platforms to be standardized.

[0019] According to the invention, the expandable component attaches the storage housing to the side sills via a force-fit connection.

[0020] Additionally, the expandable component has an interaction element in a contact area with the side sills and / or the storage housing. This interaction element corresponds to an interaction element of the side sills or the storage housing, forming a positive-locking connection with it. The positive-locking connection can act in a direction perpendicular to the spacing direction, e.g., in a vertical and / or longitudinal direction of the gap.

[0021] In advantageous embodiments, the actuated mechanism can be operated non-destructively and reversibly. This means that the mechanism can be used both to expand and to compress the expandable component without damaging either the mechanism or the component. This allows for easy disassembly of the storage housing, e.g., for maintenance or replacement of the energy storage unit, whereby the expandable component can be reused when the storage housing is reassembled.

[0022] According to other advantageous embodiments, the expandable component is pre-mounted on the storage housing before the housing is positioned between the side sills. In other words, the expandable component is already attached to the storage housing in such a way that it is simultaneously inserted into the space between the side sills when the storage housing is positioned and held there by the housing, thus further simplifying and shortening the assembly process. The pre-assembly of the expandable component on the storage housing can be achieved, for example, by force-fit, form-fit, or material-fit connections such as screws, clamps, adhesives, welding, and the like.

[0023] In a further advantageous embodiment, the expandable component has a recess that penetrates the component in a longitudinal direction of the gap. This recess can be, for example, a through-hole through the expandable component or a groove within it. The recess can advantageously be used for routing electrical conductors, cables, or similar components. Pre-assembly of the expandable component on the storage housing can include pre-wiring, for example, to connect to the energy storage device and / or other electrical components of the vehicle. This further simplifies and shortens the assembly process.

[0024] According to a further advantageous embodiment, the expandable component comprises a sill-side clamping element and a housing-side clamping element, which are mounted so as to be displaceable relative to each other in the direction of separation, as well as a drive element that can be positioned or driven in a direction perpendicular to the direction of separation between the sill-side clamping element and the housing-side clamping element by means of a screw mechanism. The distance of the sill-side clamping element relative to the housing-side clamping element is adjustable depending on the drive depth of the drive element between the two clamping elements. In this embodiment, the drive element and the screw mechanism form the actuating mechanism of the expandable component.

[0025] The clamping elements each form a contact area with the side sills or the storage housing. Preferably, this contact area is linear or planar.

[0026] The drive can be wedge- or cone-shaped, for example, so that the distance between the clamping elements can be changed or adjusted depending on their position or insertion depth. For uniform spacing between the clamping elements, the drive can have several elements, which can be wedge- or cone-shaped, for example, and which can be driven between the clamping elements from several different sides via the screw mechanism.

[0027] Driving the drive in perpendicular to the spacing direction allows the screw mechanism or its drive to be arranged and set up in such a way that, after the storage housing has been positioned between the side sills, it is easily accessible and operable for simple installation.

[0028] Further advantageous embodiments provide that at least two expandable components are arranged at intervals from each other in the space between the two components. Thus, at least two expandable components are arranged in the space between one of the side sills and the storage housing, and at least two further expandable components are arranged in the space between the other side sill and the storage housing. In this way, the total clamping force acting between the side sills and the storage housing can be distributed over several sections of each space, even if the longitudinal extent of the space is significantly greater than the longitudinal extent of a single expandable component. Preferably, in this embodiment, the expandable components are arranged symmetrically in both spaces, although this arrangement is not strictly required.However, the mirror-symmetrical arrangement ensures a uniform, symmetrical force transmission between the side sills and the storage housing.

[0029] In an alternative embodiment, only a single expandable component is inserted and arranged in the gap. The longitudinal extent of the expandable component can, for example, comprise a substantial portion of the longitudinal extent of the gap, such as at least one-third, at least one-half, or at least three-quarters of the gap's length. In this embodiment as well, the expandable components are preferably arranged in a mirror-symmetrical manner within the gaps—though this is not a strict requirement—to ensure a uniform and symmetrical force transmission between the side sills and the storage housing.

[0030] Furthermore, according to a preferred embodiment, the expandable component is designed with respect to its force absorption capacity such that it fails as soon as the clamping force exceeds a predetermined limit (also referred to as the load limit). Below the predetermined load limit, the expandable component is able to transfer forces and energy from one of the side sills via the storage housing to the opposite side sill, thereby making a positive contribution in the event of a side impact of the vehicle, i.e., in the case of a lateral intrusion of one of the side sills. The failure of the expandable component above its load limit allows the intruding side sill to deform further without increasing the load on the storage housing and any energy storage device contained therein.This ensures that the installation space occupied by the storage housing between the side sills does not act as a blocking element. It effectively prevents any stress or deformation of the storage housing or any energy storage device housed within it from exceeding a critical level due to intrusion of the side sill.

[0031] Preferably, the expandable component is made of a metallic material (e.g., aluminum extrusion profile), a plastic (e.g., injection molded component), or a hybrid material in which a metallic core is overmolded with plastic.

[0032] Furthermore, the invention relates to a method for mounting a storage housing for an energy storage device, e.g., a traction battery, on the side sills of a motor vehicle body, e.g., an electrically or partially electrically powered motor vehicle. The method comprises the following steps: - Arranging the storage housing at a distance from the side sills, forming a gap between the side sills and the storage housing; - Insertion into the space after the arrangement of the storage housing of at least one component expandable in a spacing direction by means of an actuable mechanism; - Expanding the expandable component by means of the actuated mechanism and attaching the storage housing to the side sills, thereby forming a clamping force effective between the side sills and the storage housing via the expandable component.

[0033] It is understood that, with regard to process-related definitions as well as the effects and advantages of process-related features, full reference can be made to the disclosure of analogous definitions, effects, and advantages of the assembly arrangement according to the invention, and vice versa. A repetition of explanations of analogous features, their effects, and advantages can therefore be omitted in favor of a more concise description, without such omissions being to be interpreted as a limitation of any of the disclosed subject matter of the invention.

[0034] Accordingly, the storage housing with the expandable component is attached to the side sills via a force-fit connection, wherein the expandable component has an interaction element in a contact area with the side sills and / or the storage housing, which corresponds to an interaction element of the side sills or the storage housing and is brought into a form-fit connection with it.

[0035] Further features and advantages of the invention will become apparent from the following description of exemplary embodiments of the invention, which are not to be understood as limiting and are explained in more detail below with reference to the drawing. This drawing schematically shows: Fig. 1 a cross-sectional view of a state-of-the-art assembly arrangement; Fig. 2 a partial view of an assembly arrangement according to an embodiment to illustrate principles of the invention in two different assembly states; Fig. 3 a top view of two further embodiments of an assembly arrangement to illustrate further principles of the invention; Fig. 4 a cross-sectional view of an expandable component according to an embodiment of the invention; Fig. 5 a cross-sectional view of a mounting arrangement according to a further embodiment of the invention; Fig. 6 a cross-sectional view of a mounting arrangement according to a further embodiment of the invention; and Fig. 7 a force profile of a force acting on a mounting arrangement according to a further embodiment of the invention.

[0036] In the different figures, parts that are equivalent in function are always provided with the same reference symbols, so that they are usually only described once.

[0037] The spatial directions X, Y or Z indicated in the figures represent a longitudinal direction X, a lateral direction Y and a vertical direction Z, which correspond to commonly used spatial directions relating to a motor vehicle, even if the motor vehicle is not shown in the figures.

[0038] Fig. Figure 1 schematically represents a cross-sectional view of a state-of-the-art assembly arrangement 100. Fig. Figure 1 shows the mounting arrangement 100 of a storage housing 11 for an energy storage device (not shown) on the side sills 12 of a motor vehicle body (also not shown). It can be seen that the storage housing 11 is arranged at a distance 13 from the side sills 12, forming a gap 14 between the side sills 12 and the storage housing 11. The storage housing 11 has side frames 15, by means of which the storage housing 11 is attached to the respective side sills 12 by means of a screw connection 16. The storage housing 11 is usually inserted into the body from below in the vertical direction Z and screwed to the body at the side sills 12 and, if necessary, also within the storage housing 11 itself.

[0039] Fig. Figure 2 schematically depicts a partial view of an assembly arrangement 10 according to one embodiment to illustrate the principles of the invention in two different assembly states. Due to the essentially mirror-symmetrical structure of the assembly arrangement 10, in Fig. Figure 2 shows only the left side of the assembly arrangement 10. It is to be understood that the right side, in Fig. The side of the assembly arrangement 10 not shown may be, or is, essentially identical to the left side. When the plural form of the side sills 12 is used below, the respective description refers to both the left and the right side sill 12, unless expressly stated otherwise.

[0040] Fig. Figure 2 shows the mounting arrangement 10 of a storage housing 11 for an energy storage device, which may be, for example, a traction battery (not shown), on side sills 12 of a motor vehicle body, for example, an electrically or partially electrically powered motor vehicle (also not shown in detail), wherein the storage housing 11 is arranged at a distance 13 from the side sills 12, forming a gap 14 between the side sills 12 and the storage housing 11.

[0041] In Fig. 2. It can be seen that, unlike the one in Fig. 1 assembly arrangement 100 shown according to the prior art in the space 14 of the assembly arrangement 10 after the storage housing 11 has been arranged between the side sills 12 at least one in a spacing direction which in this case corresponds to the width direction Y, by means of an actuable mechanism (cf. Fig. 4) expandable component 17 is inserted.

[0042] The in Fig. The assembly state shown in the upper half of the image represents the situation shortly after the storage housing 11 has been arranged between the side sills 12, in which the component 17 has essentially not yet expanded and thus has a shorter extent in the width direction Y than the distance 13 of the space 14.

[0043] The in Fig. The assembly state shown in the lower half of the image 2 represents the situation in which the component 17 has expanded in such a way that the storage housing 11 is attached to the side sills 12, forming a clamping force effective between the side sills 12 and the storage housing 11 via the expandable component 17.

[0044] Since the clamping force fixes the storage housing 11 between the side sills 12, the storage housing 11 cannot be fastened to the side sills 12 by means of the Fig. The screw connection 16 shown in Figure 1 is omitted according to the prior art. The expandable component 17 completely bridges the gap 14 formed between the side sills 12 and the storage housing 11.

[0045] At the in Fig. In the embodiment of the assembly arrangement 10 shown in Figure 2, the expandable component 17 attaches the storage housing 11 to the side sills 12 via a force-fit connection. Unlike the invention, in the example shown here, the storage housing 11 is attached to the side sills 12 exclusively via this force-fit connection, although this is not necessarily limited to this, as can be seen from further embodiments herein.

[0046] The expandable component 17 forms a contact area with the side sills 12 or the storage housing 11. Preferably, this contact area is planar, across which the clamping force of the expanded component 17 acts. Alternatively, the contact area can also be linear.

[0047] As seen in the upper half of the image Fig. As can be seen in Figure 2, the expandable component 17 is provided here as a separate component, separate from the side sills 12 and the storage housing 11, and can be inserted into the space 14 independently of the side sills 12 and the storage housing 11.

[0048] In embodiments not shown, the expandable component 17 can be pre-assembled on the storage housing 11 before the storage housing 11 is arranged between the side sills 12, so that the expandable component 17 is simultaneously inserted into the space 14 with the arrangement of the storage housing 11 between the side sills 12 and is held in the space 14 by the storage housing 11 before the component 17 expands.

[0049] The expandable component 17 can be formed in all disclosed embodiments from a metallic material, a plastic or a hybrid material in which a metallic core is overmolded with plastic.

[0050] The storage housing 11 is mounted on the side sills 12 of the vehicle body by arranging the storage housing 11 at a distance 13 from the side sills 12, forming the space 14 between the side sills 12 and the storage housing 11, inserting at least one component expandable in the spacing direction, which in this case corresponds to the width direction Y, by means of the actuating mechanism into the space 14 either during or after arranging the storage housing 11, expanding the expandable component in the spacing direction by means of the actuating mechanism and thereby fastening the storage housing 11 to the side sills 12, forming the clamping force acting between the side sills 12 and the storage housing 11 via the expandable component 17.

[0051] Fig. Figure 3 shows a top view of two further embodiments of a mounting arrangement 30 and 35 to illustrate further principles of the invention. The mounting arrangement 30 is shown in the left half of the figure, the mounting arrangement 35 in the right half. Fig. Figure 3 shows the assembly arrangements 30 and 35 in an assembly state in which the expandable component 17 expands and the storage housing 11 is attached to the side sills 12.

[0052] The essential difference between assembly arrangements 30 and 35 is the number of expandable components 17 arranged in each of the spaces 14. While assembly arrangement 30 shows one expandable component 17 in each space 14 (i.e., left and right), assembly arrangement 35 has two expandable components 17 in each space 14. The expandable components 17 in the same space 14 are spaced apart from each other in the longitudinal direction X, which corresponds to the longitudinal direction of the respective space 14.

[0053] In both assembly arrangement 30 and assembly arrangement 35, the expandable components 17 are arranged in the spaces 14 in a mirror-symmetrical manner. The mirror plane is to be understood here as a plane running parallel to the longitudinal direction X and perpendicular to the drawing plane, which extends approximately centrally through the respective storage housing 11.

[0054] In all other features, the mounting arrangements 30 and 35 can be identical to that in Fig. The assembly arrangement shown in section 2 must be configured as 10.

[0055] Fig. Figure 4 shows a cross-sectional view of an expandable component 17 according to an embodiment of the invention, as it can be used in all embodiments of assembly arrangements according to the invention disclosed herein.

[0056] In the left half of the image Fig. Figure 4 shows the expandable component 17 in a non-expanded state (also referred to here as a compressed state), while in the right half of the image it is shown in an expanded state.

[0057] Fig. Figure 4 shows that the expandable component 17 has a sill-side clamping element 18 and a housing-side clamping element 19, which are mounted to be displaceable relative to each other in the spacing direction, which in this case corresponds to the width direction Y, and has a drive 20 which in this case has two drive elements 21. The drive 20 or the drive elements 21 can be driven in a direction (e.g. in the Z-direction) perpendicular to the spacing direction Y between the sill-side clamping element 18 and the housing-side clamping element 19 by means of a screw mechanism 22 in one direction (e.g. in the Z-direction). This allows the distance (i.e., in the Y-direction) of the sill-side clamping part 18 relative to the housing-side clamping part 19 to be adjusted depending on the insertion depth (i.e., in the Z-direction) of the insertion 20 or the insertion elements 21 between the two clamping parts 18 and 19, as can be seen by comparing the two halves of the image. Fig. 4 becomes clear.

[0058] In the present example, the drive 20 or the drive elements 21 and the screw mechanism 22 form the actuable mechanism of the expandable component 17.

[0059] After the component 17 expands, the clamping elements 18 and 19 each form a contact area with one of the side sills 12 and the storage housing 11 in the space 14. This contact area is preferably linear or planar.

[0060] The actuated mechanism 20, 22 of the expandable component 17 is preferably non-destructively reversible actuated, i.e., the in Fig. The expandable component 17 shown in Figure 4 can be switched between the states shown in the left and right half of the image by actuating the mechanism 20, 22.

[0061] Fig. 5 and Fig. Figure 6 shows a cross-sectional view of a mounting arrangement 40 and 45 according to embodiments of the invention. The mounting arrangements 40 and 45 differ essentially in the specific design of their expandable components 17.

[0062] The Fig. 5 and Fig. It can be seen from figure 6 that in the present case both the sill-side clamping part 18 and the housing-side clamping part 19 have interaction elements 23 in a contact area with the side sills 12 and the storage housing 11, which correspond to interaction elements of the side sills 12 and the storage housing 11 and form a positive locking connection with them with respect to the Z-direction.

[0063] Additionally, the housing-side clamping part 19 has the following features: Fig. Figure 6 of the assembly arrangement shown in Figure 45 shows, by way of example, two clearances 24 penetrating the component 17 or the housing-side clamping element 19 in the longitudinal direction X. The clearances 24 are designed as through-holes through the expandable component 17 or the housing-side clamping element 19. The clearances 24 can be used for routing electrical conductors, cables, or similar components (not shown).

[0064] Fig. Figure 7 shows a force curve 25 of a force acting on a mounting arrangement (not shown) according to a further embodiment of the invention. In this mounting arrangement, the expandable component 17 is designed with respect to its force absorption capacity such that it fails as soon as the clamping force exceeds a certain threshold. Fig. 7 exceeds the predetermined limit value 26 shown.

[0065] Fig.Figure 7 depicts the force curve 25 in the event of a side-impact collision of the vehicle, resulting in intrusion of the crash-side side sill 12. In an initial section 27, a force builds up due to bending of the crash-side side sill 12 and is transmitted via the expandable component 17 into the storage housing 11 and further into the opposite side sill 12. As soon as the force curve 25, i.e., the load on the expandable component 17, reaches the limit value 26, the expandable component 17 fails, thus preventing the force transmission into the storage housing 11 from increasing further. However, the crash-side side sill 12 can continue to deform in this situation. This prevents the load or deformation of the storage housing or any energy storage device housed within it from exceeding a critical level. REFERENCE MARK LIST: 10 Assembly arrangement 11 storage enclosures 12 side skirts 13 distance 14 spaces 15 side frames 16 screw connection 17 Expandable component 18 Sill-side clamping part 19 Housing-side clamping part 20 Inflow 21 Drive element 22 screw mechanism 23 Interaction element 24. Release 25 Force curve 26 Limit value 27 First area 28 Second area 30 Assembly arrangement 35 Assembly arrangement 40 Assembly arrangement 45 Mounting arrangement 100 Assembly arrangement according to the state of the art X Longitudinal direction Y Latitude direction, distance direction Z Altitude direction

Claims

[1] A mounting arrangement (10, 30, 35, 40, 45) of a storage housing (11) for an energy storage device on side sills (12) of a motor vehicle body, in which the storage housing (11) is arranged at a distance (13) from the side sills (12), forming a respective intermediate space (14) between the side sills (12) and the storage housing (11), wherein, after the arrangement of the storage housing (11), at least one component (17) which is expandable in a spacing direction (Y) by means of an actuatable mechanism (20, 22) is introduced into the intermediate space (14), said component being expanded in such a way as to fasten the storage housing (11) to the side sills (12) with the formation of a clamping force acting between the side sills (12) and the storage housing (11) via the expandable component (17), characterized bythat the expandable component (17) fastens the storage housing (11) to the side sills (12) via a force-locking connection and the expandable component (17) has an interaction element (23) in a contact area with the side sills (12) and / or the storage housing (11), which interaction element corresponds to an interaction element of the side sills (12) or of the storage housing (11) and forms a form-locking connection therewith. [2] Mounting arrangement according to claim 1, wherein the actuatable mechanism (20, 22) is non-destructively reversibly actuatable. [3] Mounting arrangement according to one of the preceding claims, in which the expandable component (17) is pre-assembled on the storage housing (11) before the storage housing (11) is arranged between the side sills (12). [4] Mounting arrangement according to one of the preceding claims, in which the expandable component (17) has a clearance (24) penetrating the component (17) in a longitudinal direction (X) of the intermediate space (14). [5] Mounting arrangement according to one of the preceding claims, in which the expandable component (17) has a sill-side clamping part (18) and a housing-side clamping part (19), which are mounted displaceably relative to one another in the spacing direction (Y), and a drive (20) which can be driven in between the sill-side clamping part (18) and the housing-side clamping part (19) by means of a screw mechanism (22) in a direction (X, Z) perpendicular to the spacing direction (Y), wherein a distance of the sill-side clamping part (18) relative to the housing-side clamping part (19) is adjustable depending on a driving depth of the drive (20) between the two clamping parts (18, 19). [6] Mounting arrangement according to one of the preceding claims, in which at least two expandable components (17) are arranged spaced apart from one another in the intermediate space (14). [7] Mounting arrangement according to one of the preceding claims, in which the expandable component (17) is designed with regard to its force absorption capacity such that it fails as soon as the clamping force exceeds a predeterminable limit value (26). [8] Mounting arrangement according to one of the preceding claims, in which the expandable component (17) is formed from a metal material, a plastic or a hybrid material in which a metallic core is encapsulated by plastic. [9] Method for mounting a storage housing (11) for an energy storage device on side sills (12) of a body of a motor vehicle, comprising the steps: - arranging the storage housing (11) at a distance (13) from the side sills (12) while forming an intermediate space (14) between the side sills (12) and the storage housing (11); - introducing into the intermediate space (14) after arranging the storage housing (11) at least one component (17) which can be expanded in a spacing direction (Y) by means of an actuatable mechanism (20, 22); - Expanding the expandable component (17) by means of the actuatable mechanism (20, 22) and fastening the storage housing (11) to the side sills (12) thereby forming a clamping force acting between the side sills (12) and the storage housing (11) via the expandable component (17), wherein the storage housing (11) is fastened to the side sills (12) with the expandable component (17) via a force-fitting connection, and the expandable component (17) has an interaction element (23) in a contact area with the side sills (12) and / or the storage housing (11), which interaction element corresponds to an interaction element of the side sills (12) or of the storage housing (11) and is brought into a form-fitting connection with the latter.

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