Battery holder

Abstract

The invention relates to a battery carrier (1) for holding battery elements for providing electrical energy in an electrically driven vehicle. The battery carrier (1) comprises a battery tray (2) with a reinforcement structure (16) which is arranged in front of the side walls of the battery tray (2) on the outside. The reinforcement structure (16) has a hollow profile which comprises a first leg (20) with a first opening (25) and a second leg (21) with a second opening (26). Between the legs (20, 21) which are arranged vertically spaced apart from one another, a sleeve (24) extends which connects the openings (25, 26) in the legs (20, 21). A mating gasket (29) covers the first opening (25) in the first leg (20), said mating gasket (29) having a through-going portion (32) through which the sleeve (24) passes in sleeve sections.

Description

TECHNICAL FIELD

[0001] The present invention relates to a battery carrier. BACKGROUND

[0002] For securing battery elements for providing electrical energy in electrically driven vehicles, battery carriers are used which are arranged between the axles of the vehicle. Important safety requirements for battery carriers include good crash behavior. To meet this point, the battery tray is protected by an external stiffening structure.

[0003] From DE 10 2018 126 068 A1, the prior art comprises a battery carrier for an electrically driven vehicle. The battery carrier has a battery tray which is embedded in an external frame and is closed by a cover. The frame is made in cross section from at least two mutually engaging profiled components, at least one of which is made as a sheet metal profile.

[0004] EP 3 468 821 B1 discloses a battery box for a motor vehicle, which has a structural frame which serves as a stiffening structure. The structural frame can be connected to the motor vehicle body by means of fixing means which are configured as sleeves. These sleeves extend between the upper side and the lower side of the fixing section in the profile section of the structural frame and are held substantially form-locked against lateral movement.

[0005] The battery carrier must be mechanically stable and fixed on the body or chassis of the vehicle. The battery tray should be largely integrated into the body, thereby creating design and installation technical challenges.

[0006] The external stiffening structure in front of the side walls of the battery tray consists of a plurality of components as well as built-in elements and accessories. These components are welded to each other and to the battery tray. The large number of individual components and the large number of welded connections can lead to deformations in the welded structure. The large number of individual components also leads to an increase in tolerances or tolerance chains. These and the welding deformations must be compensated for to ensure that the battery tray is suitable for connecting in the motor vehicle in series. The battery carrier itself is fixed on the body or chassis of the vehicle by means of fixing means, usually screw connection means. The battery carrier is fixed in particular on the side sills and if necessary on the floor cross members in the motor vehicle. The screwing points here constitute the interface for the body, which is therefore subject to high positioning accuracy requirements. SUMMARY

[0007] Starting from the prior art, the task underlying the present invention is to provide a battery carrier which is improved in terms of functionality and installation technology, which has a flexible adjustment possibility and a high installation point position accuracy.

[0008] The solution to this task is a battery carrier.

[0009] A battery carrier for holding battery elements for providing electrical energy in an electrically driven vehicle comprises a battery tray with a reinforcement structure which is arranged in front of at least one side wall of the battery tray on the outside. The reinforcement structure extends in the longitudinal direction of the side wall and comprises a hollow profile which is preferably formed by an inner profile and a closure plate. The inner profile and the closure plate form a box-like hollow profile at least over a partial length of the reinforcement structure. The inner profile is configured in cross section in the shape of a U and has one rear web and an upper first leg and a lower second leg. An opening is arranged in each leg. The web is oriented parallel to the side wall of the battery tray. The upper leg and the lower leg of the inner profile are oriented away from the battery tray, so that the open side of the inner profile is located on the outside. The open side of the inner profile is closed at least over a partial length section by the closure plate.

[0010] The closure plate can be configured in the shape of a shell or profiled in the form of a housing and has an outer wall and a web, in particular a joining web, which protrudes in the direction of the inner profile.

[0011] The hollow profile of the reinforcement structure can also be a single-chamber profile or a multi-chamber profile. The sleeve is then preferably pushed through the opening in the leg from below and guided through the through- going portion in the passblech.

[0012] A plurality of sleeves is arranged in the reinforcement structure, in this case a fixing or mounting sleeve is involved, which is configured in particular in the shape of a cylinder or a rectangle. As a rule, a plurality of sleeves which are arranged spaced apart from one another is arranged in the longitudinal direction of the reinforcement structure. The sleeves extend between the legs of the hollow profile over the entire height of the hollow profile. The sleeves connect the openings in the legs, wherein a sleeve section, in particular at the upper end of the sleeve, projects beyond the opening in the upper first leg. These sleeves are used for passing through fixing means by means of which the battery carrier is fixed in the vehicle body or chassis. In particular, the fixing of the battery carrier on the side sills and, if necessary, the floor support in the motor vehicle is achieved by means of the sleeves and suitable fixing means.

[0013] The openings in the legs can be closed in themselves and have a circumferential edge. The openings can be configured for example in the shape of a circle.

[0014] An advantageous embodiment provides that at least one opening, in particular the first opening in the upper first leg, is open on the edge side. The opening is preferably configured in the shape of a slot in the first leg. An elongate opening in the first leg is thus involved, which opens out from the free end of the leg. This slot-like or long-hole-like opening is oriented in the first leg transversely to the longitudinal axis of the hollow profile.

[0015] According to the application, a fitting shim having a through-portion for the sleeve is provided. The sleeve passes through the through-portion in a sleeve section. The fitting shim at least partially, in particular completely, covers the first opening in the first leg or the second opening in the second leg.

[0016] "Covering" means that the fitting shim encloses the sleeve by means of the through-portion and closes the remaining space between the edge of the opening and the sleeve. Here, the fitting shim can rest on the leg or lie against the leg on the underside. In particular, the fitting shim overlaps the opening in the first leg or the opening in the second leg on top or under. In particular, the fitting shim lies against the first leg on the outside. The fitting shim then rests on the edge defining the opening in the first leg with the overlap.

[0017] The fitting shim is provided and determined for compensating tolerances in the assembly of the reinforcement structure and / or for adjusting the position of the sleeve in the hollow profile before joining the sleeve. The fitting shim serves to compensate tolerances and distances between the components of the reinforcement structure and serves as a positioning element for the sleeve in the reinforcement structure and thus for adjusting the mounting point and its position.

[0018] The fitting shim overlaps the edge around or adjoining the opening in the first leg or the opening in the second leg on top. When the fitting shim is arranged below the opening, the fitting shim overlaps the opening on the edge side underneath. The top overlap or the bottom overlap is so large that the fitting shim and the sleeve passing through the through-portion can be positioned and oriented and the opening is covered by the fitting shim.

[0019] The fitting shim can be positioned in a receptacle in the leg. The receptacle is formed in particular by a recess in one of the legs, in particular in the first leg.

[0020] A particularly advantageous design provides that the through-portion has a flange, in particular a circumferential flange which is closed in itself. The through-portion encloses the outer circumference of the sleeve by means of the flange. This is advantageous both functionally and also in terms of installation technology.

[0021] The flange is in particular oriented away from the hollow profile to the outside. However, the flange can also be oriented inwards into the hollow profile. In particular, when the fitting shim is arranged on the inside of the hollow profile and lies against the leg on the inside of the hollow profile and covers the corresponding opening, the flange is oriented inwards into the interior of the hollow profile.

[0022] An embodiment which is particularly advantageous for the practice provides that the hollow profile comprises an inner profile and a closure plate, the inner profile being configured in cross section in the shape of a U and having one rear web and the first leg and the second leg. The two legs of the inner profile are oriented away from the battery tray, i.e. point outwardly as viewed from the battery tray. The inner profile is closed by the closure plate at least over a partial length section.

[0023] This design is advantageous both functionally and in terms of crash behavior. The stiffness properties of the reinforcement structure are optimized for the load. The inner profile is easily accessible via the open side. The functionality is thereby improved, in particular the accessibility and installation of the inner profile itself and of the built-in elements to be installed in the inner profile. The inner profile and the closure plate complement one another in a coordinated manner to form the hollow profile of the reinforcement structure. This hollow profile is characterized by advantageous static and dynamic load properties. In particular, the stiffness of the reinforcement structure relative to the battery tray is high. Here, the legs of the inner profile or of the hollow profile can be deformed upon side impact and energy dissipation, wherein the closure plate functions as a tension rod and holds the legs in place to some extent.

[0024] A further advantageous design provides that one sleeve or a plurality of sleeves is guided with a sleeve section through a first opening in the first leg and projects relative to the outer side of the first leg. It is also possible that the one sleeve or a plurality of sleeves is guided with a sleeve section through a second opening in the second leg and projects relative to the outer side of the second leg. The projecting or overhanging section of the sleeve serves in particular as a connection surface for a positively locking connection with a mating spacer material, in particular in the form of an at least partially encircling weld seam or a form- and / or force-locked engagement connection such as a crimp or a crimping.

[0025] A further advantageous embodiment provides that the sleeve has an upper collar and / or a lower collar. The sleeve has a sleeve body. At one or both ends of the sleeve body, a collar is provided, in particular an encircling collar. The collar is oriented outwardly from the sleeve body. In particular, the collar material is a uniform component of the sleeve or of the sleeve body.

[0026] The collar can also be formed by a separate collar body, in particular a ring. The collar thus constitutes a ring-shaped step of the outer surface of the substantially cylindrical sleeve body. However, it is also within the scope of the invention for one or more sleeves to have a polygonal basic shape.

[0027] Preferably, the sleeve has a lower collar. By means of the lower collar at the lower end of the sleeve body, the sleeve stands on the lower second leg on the inner side. By means of the lower collar, in particular the contact surface for engagement with the second leg is increased and functionally improved.

[0028] Instead of a collar, a second mating spacer having the same function as the collar of the sleeve can also be provided.

[0029] It is also possible that the sleeve passes through the second opening in the lower second leg with the sleeve body and the lower collar rests against the second leg on the outside.

[0030] The collar absorbs the friction and pressure generated when tightening mounting elements, such as threaded connections, that pass through the sleeve or sleeve body. This protects the surfaces of the components in the threaded connection area from damage and reduces surface pressure.

[0031] The legs of the hollow profile or the legs of the internal profile and / or the closure plate may have engaging tongues. Preferably, a plurality of spaced-apart engaging tongues are arranged along the longitudinal edge sections of the legs in the longitudinal direction of the internal profile. The engaging tongues project outwardly. Preferably, alternating rows of engaging tongues are provided on each leg along its longitudinal edge section. These engaging tongues are spaced apart from each other in the longitudinal direction of the leg, thus creating free space between each engaging tongue. The closure plate is supported on the free end or longitudinal edge section of the leg and / or on the engaging tongues of the leg. The engaging tongues may be angled relative to the leg, and the engaging tongues are oriented outward, particularly away from the free end of the leg. This improves accessibility, especially when manufacturing spot-welded connections.

[0032] The closure panel may also have a connecting tongue or connecting tab, which is supported on the legs of the internal profile. In particular, the closure panel is partially abutted against the connecting tongue with the connecting tab.

[0033] The closure panel is locked to the internal profile material. This is achieved through a material-locking connection between the interlocking tongues of the internal profile and the interlocking tabs of the closure panel. Specifically, the material-locking connection between the interlocking tongues and interlocking tabs is achieved through spot welding or spot welding bonding. These joining techniques ensure minimal heat input to the component during the material-locking connection. In principle, roll seam welding or laser welding is also possible.

[0034] Another advantageous embodiment specifies that a built-in element is provided in the reinforcing structure. The built-in element may be a load guide, a partition, and similar internal reinforcing and / or functional member. The built-in element is particularly disposed adjacent to an internal strut disposed in the battery tray. The built-in element is located on the side front of the internal strut in the reinforcing structure, the internal strut extending between the opposing sidewalls of the battery tray.

[0035] The built-in elements are preferably configured as open or closed profile metal sheets and extend between the first leg and the second leg of the hollow profile and / or as a continuous load path from the closed sheet to the inner profile. The reinforcement members located inside can also be configured as patches or local material doublings.

[0036] Furthermore, at least one support beam and / or a protective plate can be provided below the battery tray and / or below the reinforcement structure. The support beam and / or the protective plate can assume different functions. In particular, they help to hold the battery weight, i.e. to take up the weight and / or the load, or serve as additional protection, in particular against penetration or tearing from below, and as side impact protection.

[0037] The reinforcement structure is connected to the battery tray. For this purpose, the inner profile engages with the battery tray. In particular, the inner profile engages with its rear part tabs against the side walls of the battery tray. The open inner profile is advantageously accessible from the side. The sleeve and other built-in elements can be put into and mounted in the open inner profile. The orientation and adjustment of the sleeve is achieved by means of the fitting shim during mounting. Before the sleeve is engaged, tolerances are compensated for and the mounting point is set exactly in position by adjusting the position of the sleeve in the hollow profile. The sleeve or its sleeve body can be moved in the longitudinal direction and in the transverse direction of the hollow profile or the reinforcement structure in the opening with limited freedom. Furthermore, the inclination of the sleeve longitudinal axis with respect to the perpendicular can be adjusted to a limited extent. The opening is covered by the fitting shim and the position of the sleeve and thus of the mounting point is determined. For this purpose, the fitting shim engages with the leg material. The fitting shim rests against the adjacent leg. In particular, the fitting shim rests on the first leg, i.e. the upper leg of the inner profile, on the outside. The material-locked connection between the fitting shim and the leg is in particular achieved by welding.

[0038] After the sleeve and, if necessary, the built-in elements have been mounted in the inner profile, the open side of the inner profile is closed by one or more closed sheets. This is achieved in a material-locked manner, preferably in a welding technique.

[0039] In addition to the built-in elements in the reinforcement structure, reinforcement or stiffening elements can also be integrated in the battery tray. Such reinforcement or stiffening elements can be formed by longitudinal and / or transverse profiles or struts extending on the tray bottom.

[0040] Furthermore, a cover can form the upper closure of the battery tray. It is particularly advantageous if the battery cradle is designed and determined for integration into the body or chassis of the vehicle. The battery cradle here forms a load-bearing component of the body (battery to body). Here, the floor of the vehicle can form the battery cover.

[0041] The battery tray is in particular a deep-drawn part which is constructed integrally and uniformly in terms of material. The interior profile and / or the closure plate can also be produced by means of a press-molding technique or a deep-drawing technique. By means of its U-shaped cross section, the interior profile has a channel-like extension in which a plurality of sleeves are arranged spaced apart from one another in the longitudinal direction. The at least one closure plate closes the interior profile over at least a portion of its length. In this way, the interior profile and the closure plate form a hollow profile. A plurality of closure plates can be provided along the longitudinal direction of the reinforcement structure. The one closure plate or the plurality of closure plates form the outer wall of the reinforcement structure.

[0042] The battery tray can also be formed from a metal sheet blank by means of a folding technique into a battery tray. For this purpose, a metal sheet blank is provided which has a geometry which corresponds to the unfolded shape of the battery tray. The cooling plate can optionally be joined directly to the metal sheet blank, which is then formed into a battery tray by means of a folding technique. The battery tray is constructed as a folded component. The folding angles of the battery tray are joined and sealed.

[0043] The battery tray as well as the reinforcement structure and the components forming the reinforcement structure, in particular the interior profile and / or the closure plate, can be produced by means of a die quenching of a steel sheet. Die quenching is also referred to as press hardening. In die quenching, a metal sheet made of manganese-boron steel is heated to a temperature which is higher than the specific austenitizing temperature of the material, is placed in a forming die and is hot-formed into a formed part which cools during the forming. The formed part is quenched by cooling while being clamped in the forming die.

[0044] Coated die quenchable steel sheets can also be used here. This in particular relates to manganese-boron steel sheets which are provided with an aluminum / silicon coating having a zinc alloy coating. The components of the reinforcement structure and of the battery tray have a tensile strength of 1000 MPa and above.

[0045] The battery tray as well as the interior profile and / or the exterior profile of the reinforcement structure can also be made of very high and ultra-high strength cold-formed steel. At least the exterior profile has a tensile strength of greater than 980 MPa. In particular, the interior profile has a tensile strength of greater than or equal to 1180 MPa.

[0046] The battery tray and the components of the reinforcement structure, in particular the interior profile and / or the exterior profile, can both be made of tailored blanks. Tailored blanks can be used here in which the sheet thickness and / or the material grade differ from one another. Components having tailored strength properties can also be used. Not only the battery tray but also the interior profile and / or the exterior profile can have local soft zones. These measures serve to increase the lateral stiffness and to improve the crash behavior in a targeted manner and, for example, to prevent cracks when welding or to adjust local weakening regions which have an improved deformation capability in order to absorb energy. BRIEF DESCRIPTION OF DRAWINGS

[0047] The application is explained in detail below with the help of embodiments shown in the drawings. The drawings are as follows:

[0048] Figure 1 A battery holder according to the application is shown in a cross-sectional view;

[0049] Figure 2 A battery holder is shown in a schematic top view;

[0050] Figure 3 A technically schematic top view of the reinforcing structure is shown in an enlarged view;

[0051] Figure 4 A cross-sectional view through the reinforcing structure of the battery holder according to Figure 3 is shown along the line A-A;

[0052] Figure 5 A cross-sectional view through the reinforcing structure of the battery holder according to Figure 3 is shown along the line B-B;

[0053] Figures 6 to 10 Cross-sectional views through the reinforcing structure in the sleeve region are shown respectively;

[0054] Figure 11 A first embodiment of a mating spacer is shown in a perspective view;

[0055] Figure 12 A second embodiment of a mating spacer is shown in a perspective view;

[0056] Figure 13 A further embodiment of a battery holder according to the application is shown in a cross-sectional view; and

[0057] Figure 14 A battery holder according to the application is shown in a schematic top view. Figure 13 DETAILED DESCRIPTION

[0058] In the drawings, identical or functionally equivalent components or component parts are provided with the same reference numerals, even if repeated descriptions are omitted for reasons of simplification. Figures 1 to 14

[0059] Figures 1 to 3 Figure 13 Figure 14 A battery holder 1 according to the application and its components are shown.

[0060] ​​​​The battery carrier 1 has a battery tray 2 which is deep-drawn from a sheet of steel. The battery tray 2 is configured in cross section in the shape of a rectangle and has a tray bottom 3 and side walls, i.e. two longitudinal walls 4, 5 and two end walls 6, 7, which complement one another to form a circumferential tray wall 8. At an upper tray edge 9, outwardly directed flange sections 10 extend along the longitudinal walls 4, 5 and the end walls 6, 7, which likewise complement one another in a circumferentially closed manner to form an upper flange 11. The tray wall 8 defines a tray interior 12 of the battery tray 2.

[0061] Optionally and as shown schematically in Figure 2 and Figure 13 and Figure 14 a plurality of interior struts 13 is provided in the tray interior 12. The interior struts 13 extend transversely on the tray bottom 3 between the longitudinal walls 4, 5 and are fixed material-locked in the battery tray 2.

[0062] On the upper side, the battery tray 2 is closed by a cover 14 which rests on the flange 11 on the edge side with an inserted circumferential seal, not shown here. In the embodiment shown, the cover 14 is detachably connected to the battery tray 2 by means of screw connection means 15.

[0063] The battery carrier 1 has a reinforcement structure 16. The reinforcement structure 16 extends in front of the longitudinal walls 4, 5, respectively, outside the battery tray 2.

[0064] As shown in particular in Figure 1 and Figure 4 and Figure 5 and Figures 6 to 10 The reinforcement structure 16 has an interior profile 17 and a closure plate. The interior profile 17 is configured in cross section in the shape of a U and has one rear web 19 and an upper first leg 20 and a lower second leg 21 and one open side 22. The legs 20, 21 of the interior profile 17 are oriented away from the battery tray 2. The web 19 extends parallel to the side walls or, respectively, parallel to the longitudinal walls 4, 5. The open side 22 of the interior profile 17 is closed at least over a partial length section by the closure plate.

[0065] Not only the interior profile 17 but also the closure plate is a sheet metal profile formed from a sheet of steel. This can be a press-hardened sheet steel component or a cold-formed profile formed from cold-formed steel, in particular ultra-high-strength (UHSS).

[0066] The reinforcement structure 16 extends in the longitudinal direction LR of the longitudinal walls 4, 5. The interior profile 17 and the closure plate form a hollow profile 23 at least over a large part of the length L of the reinforcement structure 16.

[0067] In the hollow profile 23 of the reinforcement structure 16, a plurality of sleeves 24 are provided. These sleeves extend vertically between the first leg 20 and the second leg 21 of the inner profile 17. In the upper first leg 20, a first opening 25 is provided and in the lower second leg 21, a second opening 26 is provided. The openings 25, 26 are connected by the sleeves (see also Figures 6 to 10 ). The sleeves 24 have a sleeve body 27 and with a sleeve section 28 project out of the first upper opening 25. On the upper side, the first opening 25 is covered by a mating gasket 29, 30. The mating gasket 29, 30 has a through-portion 32. The sleeve 24 with the sleeve section 28 passes through the through-portion 32 and projects on the upper side against the first leg 20 of the inner profile 17.

[0068] In Figure 11 and Figure 12 two embodiments of the mating gasket 29, 30 are shown. According to Figure 11 the mating gasket 29 comprises a flat gasket body 31 with a through-portion 32. According to Figure 12 the mating gasket 30 likewise has a flat gasket body 31, wherein the through-portion 32 has a circumferential flange 33 which is closed in itself. The circumferential flange 33 in the mating gasket 30 is pulled out of the gasket body 31 uniformly in one piece in the form of a crimping. The semi-finished product for the production of the mating gasket 30 can be a gasket body 31 as shown in Figure 11 .

[0069] The first opening 25 in the first leg 20 can be closed in itself, i.e. circumferentially delimited by an edge. Such an opening 25 is for example circular. The circular first opening 25 is shown in the embodiments according to Figure 1 , Figure 5 and Figures 7 to 10 and Figure 13 .

[0070] The first opening 25 in the upper first leg 20 can also be open on the edge side forward to the free end of the leg 20 and to the outer profile 18. This is shown in the view of Figure 6 . The opening 25 is configured in this design as a slot or as a long hole and is open at the free end of the leg 20.

[0071] At the lower end, the sleeve 24 has a lower sleeve ring 34. The sleeve ring 34 can be formed by a sheet-like element 35. But the sleeve ring 34 can also be formed by a turning over of the lower end of the sleeve body 27 of the sleeve 24. The sleeve 24 stands on the inner side on the lower second leg 21 by means of the lower sleeve ring 34.

[0072] The fitting shims 29, 30 are provided and dimensioned for compensating tolerances and for adjusting the position of the sleeve 24 in the hollow profile 23 before the engagement of the sleeve 24 and thus for determining the final position of the mounting point provided or realized by the sleeve 24. For this purpose, the sleeve 24 can be moved relative to the first opening 25 in the first leg 20 and relative to the second opening 26 in the second leg 21. Furthermore, the inclination of the sleeve longitudinal axis HL relative to the perpendicular can be set in terms of angle. For this purpose, the fitting shims 29, 30 can be moved on the first leg 20 of the upper part in the longitudinal direction and in the transverse direction of the reinforcement structure 16. After adjustment to the correct position, the sleeve 24 is fixed. For this purpose, the fitting shims 29, 30 are joined with the first leg 20 and the sleeve 24 material-lockingly, in particular welded.

[0073] The fitting shims 29, 30 cover the first opening 25 in the first leg 20 of the upper part with an overlap 45. The fitting shims 29, 30 surround the sleeve 24 or the sleeve section 28 and thus project outwardly such that they project beyond the edge 46 of the opening 25 and thus cover the opening 25. In the region of the overlap 45, the fitting shims 29, 30 are then joined with the first leg 20 at least locally.

[0074] In the embodiment of the inner profile 17 according to Figure 7 and Figure 9 The first leg 20 and the second leg 21 of the lower part can have engagement tongues 36. The engagement tongues 36 extend outwardly on the longitudinal edge sections of the legs 20, 21. A plurality of engagement tongues 36 are provided alternately along the length of the inner profile 17. Between the individual engagement tongues 36, free spaces 37 are present.

[0075] The closure plate has engagement tabs 38. These extend along the outer longitudinal edges of the closure plate, respectively. The closure plate rests on the inner profile 17 in the region of the engagement tongues 36 by means of the engagement tabs 38. In the region of the free spaces 37, the closure plate rests on the legs 20, 21 of the inner profile 17 at the longitudinal edges of the inner profile, respectively, by means of the outer engagement tabs 38.

[0076] The closure plate has an outer wall 39. The outer wall 39 extends vertically, in cross section, substantially parallel to the rear tab 19 of the inner profile 17. One engagement tab 38 is provided at the upper longitudinal edge and the lower longitudinal edge of the closure plate, respectively. The engagement tab is oriented transversely to the outer wall 39.

[0077] In the embodiment of the closure plate according to Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 8 and Figure 13 The engagement tabs 38 are turned inwardly toward the direction of the inner profile 17.

[0078] In the embodiment of the closure plate according to Figure 7 and Figure 9 the engagement tab 38 is oriented outwardly away from the end of the first leg 20 and / or the second leg 21.

[0079] The embedding of the sleeve 24 and the mounting and fixing of the embedded elements takes place from the outside with the interior profile 17 open, and then the interior profile is closed by the closure plate at least over a partial length section. For this the closure plate engages with the interior profile 17 in a material-locked manner, in particular by spot welding. This takes place in particular between the engagement tongue 36 and the engagement tab 38.

[0080] The embodiment of the battery tray 2 according to Figure 13 and Figure 14 corresponds to the basic structure described above. Embedded elements 40 are shown in simplified form, which are embedded in the hollow profile 23 or the interior profile 17 of the reinforcement structure 16. Such embedded elements 40 can be load guides or partitions, for example. They engage with the interior profile 17, in particular in a material-locked manner. In the view according to Figure 3 and in Figure 14 embedded elements 40 are shown in a technically simplified form, which are configured in the shape of a hat and have different heights.

[0081] A support beam 41 can be provided below the battery tray 2 and the reinforcement structure 16. This is shown in the view according to Figure 1 In the embodiment shown, the support beam 41 has a hole 42, which communicates with the lower second opening 26 in the lower leg 21 and the sleeve 24. The support beam 41 can be configured in the shape of a plate or be designed in a profiled manner.

[0082] Furthermore, the connection of the motor vehicle's side sill 43 and the battery carrier 1 on the motor vehicle is also shown implicitly in the left-hand half of the view according to Figure 1 In the motor vehicle or the side sill 43, a screwing point AP in the form of a threaded sleeve 44 is provided. Mounting points MP are provided by means of the sleeve 24, by means of which the battery carrier 1 is fixed on the motor vehicle by means of screwing connection means. The final setting of the mounting points MP and thus the adjustment between the screwing point AP and the mounting points MP is achieved by adjusting and orienting the position of the sleeve 24 within the reinforcement structure 16 via the mating shims 29, 30. For the mounting of the battery carrier 1, the screwing connection means are guided through the sleeve 24 and are detachably coupled with the threaded sleeve 44.

[0083] Instead of the side sill, the battery carrier 1 can also be fixed on other underbody structural elements of the motor vehicle, for example on more interior longitudinal beams or guide frame longitudinal beams.

[0084] List of reference signs

[0085] 1 battery carrier

[0086] 2 battery tray

[0087] 3 tray bottom

[0088] 4 longitudinal wall

[0089] 5 longitudinal wall

[0090] 6 end wall

[0091] 7 end wall

[0092] 8 tray wall

[0093] 9 tray edge

[0094] 10 flange section

[0095] 11 flange

[0096] 12 tray interior space

[0097] 13 interior strut

[0098] 14 cover

[0099] 15 screw connection means

[0100] 16 reinforcing structure

[0101] 17 interior profile

[0102] 18 exterior profile

[0103] 19 web

[0104] 20 first leg

[0105] 21 second leg

[0106] 22 open side

[0107] 23 hollow profile

[0108] 24 sleeve

[0109] 25 first opening

[0110] 26 second opening

[0111] 27 sleeve body

[0112] 28 sleeve section

[0113] 29 mating gasket

[0114] 30 mating gasket

[0115] 31 gasket body

[0116] 32 through portion

[0117] 33 flange

[0118] 34 lower collar

[0119] 35 gasket element

[0120] 36 engagement tongue

[0121] 37 free space

[0122] 38 engagement tab

[0123] 39 outer wall

[0124] 40 built-in element

[0125] 41 support beam

[0126] 42 aperture

[0127] 43 side rocker

[0128] 44 threaded sleeve

[0129] 45 overlap

[0130] 46 edge of the opening

[0131] HL sleeve longitudinal axis

[0132] L length

[0133] LR longitudinal direction

[0134] AP tightening point

[0135] MP mounting point

Claims

1. Battery carrier (1) having a battery tray (2) and a reinforcement structure (16), said reinforcement structure (16) having a hollow profile (23) which is arranged in front of the side walls (4, 5) of the battery tray (2) on the outside, said hollow profile (23) comprising a first leg (20) having a first opening (25) and a second leg (21) having a second opening (26), said first and second legs being arranged spaced apart from one another and being provided with a sleeve (24) which extends between the first and second legs and connects the openings in the first and second legs, characterized in that, A fitting shim (29, 30) is provided, which has a through-opening (32) through which the sleeve (24) passes and which covers the first opening (25) in the first leg (20) or the second opening in the second leg.

2. The battery holder of claim 1, wherein, The fitting shim (29, 30) is provided and designed to compensate for tolerances and / or to adjust the position of the sleeve (24) in the hollow profile (23) before the sleeve (24) is joined.

3. The battery holder of claim 1, wherein, The fitting shim (29, 30) is attached to the first leg (20) on the outside.

4. The battery cradle of any one of claims 1 to 3, wherein, The fitting shim (29, 30) covers the first opening (25) and / or the second opening on the edge side with an overlap (45).

5. The battery cradle of any one of claims 1 to 3, wherein, The first opening (25) and / or the second opening is open on the edge side.

6. The battery cradle of any one of claims 1 to 3, wherein, The through-opening (32) has a flange (33).

7. The battery cradle of any one of claims 1 to 3, wherein, The through-opening (32) has a circumferential flange.

8. The battery holder of claim 6, wherein, The flange (33) is oriented away from the hollow profile (23) on the outside.

9. The battery holder of claim 6, wherein, One fitting shim is attached to the first leg on the inside and the flange is oriented inwards.

10. The battery cradle of any one of claims 1 to 3, wherein, The hollow profile (23) comprises an inner profile (17) and an outer profile (18), the inner profile (17) being configured in cross-section in the shape of a U and having one web (19) and the first leg (20) and the second leg (21), the first leg and the second leg of the inner profile (17) being oriented away from the battery tray (2) and the inner profile (17) being closed by the outer profile (18) at least over a partial length section.

11. The battery sled of any one of claims 1-3, wherein, The sleeve (24) passes through the first opening (25) in the first leg (20) with an upper sleeve section and projects relative to the outside of the first leg (20) and / or passes through the second opening in the second leg with a lower sleeve section and projects relative to the outside of the second leg.

12. The battery sled of any one of claims 1-3, wherein, The sleeve (24) has an upper sleeve ring and / or a lower sleeve ring (34).

13. The battery holder of claim 11, wherein, The sleeve (24) stands on the second leg (21) on the inside with a lower sleeve ring (34) or is attached to the second leg on the outside.

14. The battery sled of any one of claims 1-3, wherein, A built-in element (40) is provided in the reinforcement structure (16).

15. The battery sled of any one of claims 1-3, wherein, At least one support beam (41) and / or a protection plate is provided below the battery tray (2) and / or the reinforcement structure (16).

16. The battery sled of any one of claims 1-3, wherein, A first fitting shim (29) covers the first opening (25) in the first leg (20) and a second fitting shim covers the second opening in the second leg. The fitting shim (29, 30) is provided and designed to compensate for tolerances and / or to adjust the position of the sleeve (24) in the hollow profile (23) before the sleeve (24) is joined. The fitting shim (29, 30) is attached to the first leg (20) on the outside. The fitting shim (29, 30) covers the first opening (25) and / or the second opening on the edge side with an overlap (45). The first opening (25) and / or the second opening is open on the edge side. The through-opening (32) has a flange (33). The through-opening (32) has a circumferential flange. The flange (33) is oriented away from the hollow profile (23) on the outside. One fitting shim is attached to the first leg on the inside and the flange is oriented inwards. The hollow profile (23) comprises an inner profile (17) and an outer profile (18), the inner profile (17) being configured in cross-section in the shape of a U and having one web (19) and the first leg (20) and the second leg (21), the first leg and the second leg of the inner profile (17) being oriented away from the battery tray (2) and the inner profile (17) being closed by the outer profile (18) at least over a partial length section. The sleeve (24) passes through the first opening (25) in the first leg (20) with an upper sleeve section and projects relative to the outside of the first leg (20) and / or passes through the second opening in the second leg with a lower sleeve section and projects relative to the outside of the second leg. The sleeve (24) has an upper sleeve ring and / or a lower sleeve ring (34). The sleeve (24) stands on the second leg (21) on the inside with a lower sleeve ring (34) or is attached to the second leg on the outside. A built-in element (40) is provided in the reinforcement structure (16). At least one support beam (41) and / or a protection plate is provided below the battery tray (2) and / or the reinforcement structure (16). A first fitting shim (29) covers the first opening (25) in the first leg (20) and a second fitting shim covers the second opening in the second leg.

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