CEILING PLATE

Abstract

A roadway coverplate for an assembly of an inductive charging device for inductively charging a motor vehicle, may include a main body and a cover. The main body may have an upper side for parking a motor vehicle and a lower side facing away from the upper side. The main body, on the lower side, may include a depression configured to receive the assembly. The cover may cover the depression and may, outside the depression, bear on a bearing portion of the lower side. The cover may be coupled in a force-fitting manner to the lower side in the bearing portion and may be configured to conjointly support a load acting on the upper side.

Claims

1. A roadway coverplate for an assembly of an inductive charging device for inductively charging a motor vehicle, comprising: a main body having an upper side for parking the motor vehicle and a lower side facing away from the upper side; the main body, on the lower side, including a depression configured to receive the assembly; a cover covering the depression and which, outside the depression, bears on a bearing portion of the lower side; and wherein the cover is coupled in a force-fitting manner to the lower side in the bearing portion and is configured to conjointly support a load acting on the upper side.

2. The roadway coverplate according to claim 1, wherein the cover is configured as a planar and closed plate.

3. The roadway coverplate according to claim 1, wherein the cover is configured as a metal cover.

4. The roadway coverplate according to claim 1, further comprising at least one upper reinforcement disposed in the main body between the depression and the upper side, wherein the at least one upper reinforcement extends at least in part transversely to a spacing direction, the spacing direction extending from the upper side to the lower side.

5. The roadway coverplate according to claim 1, further comprising a tray received in the depression in a force-fitting manner, wherein: the tray has a main portion that bears on the lower side in the depression; the tray includes a collar that projects from the main portion, the collar bearing on the bearing portion of the lower side; and the tray delimits an interior space for receiving at least one coil of the assembly.

6. The roadway coverplate according to claim 1, further comprising a connector and a mating connector, wherein: the bearing portion includes at least one receptacle which is open on the lower side; the connector is received in the receptacle; and the mating connector is associated with the connector and conjointly with the connector forms a connection which couples in a force-fitting manner the cover to the main body.

7. The roadway coverplate according to claim 6, further comprising a lower reinforcement connected to the connector, wherein outside the associated connector the lower reinforcement at least in part extends transversely to a spacing direction, the spacing direction extending from the upper side to the lower side.

8. The roadway coverplate according to claim 6, wherein: the connector includes a threaded element received in the main body, the threaded element including a thread; and the associated mating connector includes a bolt having a mating thread.

9. The roadway coverplate according to claim 6, further comprising: a plurality of connectors including the connector; a plurality of mating connectors including the mating connector, each of the plurality of mating connectors associated and engageable with one of the plurality of connectors to form a plurality of connections including the connection; and wherein the plurality of connectors and the plurality of mating connectors are arranged such that at least two of the plurality of connections are spaced apart from one another along the bearing portion.

10. The roadway coverplate according to claim 1, further comprising a releasable placeholder for the assembly is disposed in the depression, wherein: the placeholder includes at least one support element that extends between the cover and the upper side; and the at least one support element is configured to transmit a load from the upper side to the cover.

11. The roadway coverplate according to claim 1, further comprising a can which conjointly with the cover delimits a volume for an electrical supply of the assembly, wherein the can is attached on a side of the cover that faces away from the depression.

12. The roadway coverplate according to claim 1, further comprising at least one steel reinforcement received in the main body, wherein: the at least one steel reinforcement, transversely to a spacing direction, is disposed spaced apart from the depression and protrudes from the main body transversely to the spacing direction; and the spacing direction extends from the upper side to the lower side of the main body.

13. The roadway coverplate according to claim 12, further comprising at least one upper reinforcement disposed in the main body between the depression and the upper side, wherein: the at least one upper reinforcement extends at least in part transversely to the spacing direction; and the at least one upper reinforcement is attached to the at least one steel reinforcement such that the at least one upper reinforcement is disposed spaced apart from the depression.

14. The roadway coverplate according to claim 4, wherein the at least one upper reinforcement is a fibrous reinforcement.

15. A functional group, comprising: a roadway coverplate; an assembly of an inductive charging device; the roadway coverplate including: a main body having an upper side on which a motor vehicle is parkable and a lower side facing away from the upper side; the main body including a depression disposed in the lower side, the depression configured to receive the assembly; and a cover bearing on a bearing portion of the lower side and covering the depression; wherein the cover is coupled in a force-fitting manner to the bearing portion of the lower side of the main body and is configured to conjointly support a load acting on the upper side; and wherein the assembly is, at least in part, received in the depression.

16. The functional group according to claim 15, wherein: the roadway coverplate further includes a tray received in the depression in a force-fitting manner; the tray has a main portion that bears on the lower side in the depression; the tray includes a collar that projects from the main portion, the collar disposed at least partially outside the depression and bearing on the bearing portion of the lower side; the tray and the cover delimit an interior space; and at least a portion of the assembly is received in the interior space.

17. The roadway coverplate according to claim 7, wherein the lower reinforcement extends along the lower side.

18. A roadway coverplate for a motor vehicle inductive charging device, comprising: a main body having an upper side on which a motor vehicle is parkable and a lower side facing away from the upper side; the main body including a depression disposed in the lower side, the depression configured to receive an assembly of the motor vehicle inductive charging device; a planar, metal cover bearing on a bearing portion of the lower side and covering the depression; and wherein the cover is coupled in a force-fitting manner to the bearing portion of the lower side of the main body and is configured to conjointly support a load acting on the upper side.

19. The roadway coverplate according to claim 18, wherein: the roadway coverplate further includes a tray received in the depression in a force-fitting manner; the tray has a main portion that bears on the lower side in the depression; the tray includes a collar that projects from the main portion, the collar disposed at least partially outside the depression and bearing on the bearing portion of the lower side; the tray and the cover delimit an interior space; and at least a portion of the assembly is received in the interior space.

20. The roadway coverplate according to claim 19, wherein: the roadway coverplate further includes a can; the can is attached to a side of the cover facing away from the depression; and the can, conjointly with the cover, delimits a volume for an electrical supply of the assembly.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In the figures, in each case schematically:

[0065] FIG. 1 shows a section through a multi-storey car park having a functional group which comprises a roadway coverplate and an assembly,

[0066] FIG. 2 shows a section through the functional group,

[0067] FIG. 3 shows part of the section from FIG. 2,

[0068] FIG. 4 shows an enlarged view of the region marked with IV in FIG. 3,

[0069] FIG. 5 shows an exploded illustration of specific parts from FIG. 4,

[0070] FIG. 6 shows a section through the functional group in another exemplary embodiment,

[0071] FIG. 7 shows a section through the functional group in a further exemplary embodiment,

[0072] FIG. 8 shows a section through the functional group in a further exemplary embodiment,

[0073] FIG. 9 shows a section through the roadway coverplate.

DETAILED DESCRIPTION

[0074] A roadway coverplate 1, as is shown in FIGS. 1 to 9 for example, is used for parking a motor vehicle 2 (see FIG. 1) as well as for the inductive charging of the motor vehicle 2. The roadway coverplate 1, hereunder also referred to as the coverplate 1 for short, here is designed for receiving an assembly 3 of an inductive charging device 4 for inductively charging the motor vehicle 2, as can be derived from FIG. 1. An associated functional group 39 comprises the coverplate 1 and at least parts of the assembly 3.

[0075] In a manner corresponding to FIG. 1, the charging device 4, apart from the assembly 3 which is received in the coverplate 1 and hereunder is also referred to as the ground assembly 3, in the motor vehicle 2 to be charged has a further assembly 5 which hereunder is also referred to as the motor vehicle assembly 5. The ground assembly 3 comprises at least one primary coil 6 which inductively interacts with at least one secondary coil (not shown) of the motor vehicle assembly 5 in order to charge the motor vehicle 2, that is to say in particular a rechargeable battery (not shown) of the motor vehicle 2.

[0076] The coverplate 1 is used in particular in publicly accessible spaces, in the exemplary embodiments of FIG. 1 and FIG. 8 in a multi-storey car park 7. The coverplate 1 here serves for parking the motor vehicle 2 and thus also as a roadway, as well as a cover. The coverplate 1 can be supported by at least one support 8, in particular of the multi-storey car park 7, as can be derived from FIG. 1. The coverplate 1, in particular by way of the support 8, here can be connected to further coverplates 1. The coverplate 1 forms in particular at least one parking bay 9 for a motor vehicle 2, or is a component part of the at least one parking bay 9. In the exemplary embodiments of FIGS. 1 to 7 as well as FIG. 9, the coverplate 1 here forms one parking bay 9. In the exemplary embodiment of FIG. 8, the coverplate 1 forms two parking bays 9.

[0077] In a manner corresponding to FIGS. 1 to 9, the coverplate 1 has a main body 10 which is preferably a concrete element. The main body 10 is configured so as to be plate-shaped and has an upper side 11 as well as a lower side 12 that faces away from the upper side 11. The upper side 11 serves for parking the motor vehicle 2 and thus also as a roadway. The upper side 11 here is configured so as to be closed and flat and/or planar. The plate-shaped configuration of the coverplate 1 in a spacing direction 13 from the upper side 11 to the lower side 12 is demonstrated in particular in that a thickness 14 (see FIG. 2) of the main body 10 in the spacing direction 13 is smaller than a width 15 of the main body 10 transversely to the spacing direction 13.

[0078] At least one depression 16 that is open on the lower side 12 is provided on the lower side 12 in the main body 10. The main body 10 has such a depression 16 in the exemplary embodiments of FIGS. 1 to 7 as well as 9. Two such depressions 16 are provided in the main body 10 in the exemplary embodiment of FIG. 8. In the exemplary embodiments of FIGS. 1 to 7 as well as 9, the depression 16 in a purely exemplary manner is disposed so as to be centric along the width 15. The depression 16 serves for receiving the ground assembly 3 or at least parts of the ground assembly 3. The respective depression 16 in the exemplary embodiments shown serves for receiving an associated ground assembly 3. The respective parking bay 9 in the exemplary embodiment of FIG. 8 here is assigned one depression 16 and one ground assembly 3.

[0079] The depression 16 here is covered and closed off by a cover 41 which is disposed on that side of the depression 16 that faces away from the upper side 11. The cover 41 outside the depression 16 bears on a bearing portion 20 of the lower side 12 and in the bearing portion 20 is fastened in a force-fitting manner to the main body 10. A transmission of load from the main body 10 to the cover 41 thus takes place such that the cover 41 conjointly supports the load, for example of the motor vehicle 2, acting on the upper side 11. The cover 41 is correspondingly configured for this purpose, has in particular a corresponding strength and/or stiffness. The reduced load-bearing capability of the main body 10 linked to the associated depression 16 is thus at least partially, preferably completely, compensated for by the respective cover 41.

[0080] In the exemplary embodiments shown, the respective cover 41 is configured as a planar plate 48, preferably from metal, that is to say preferably configured as a metal plate 49. The cover 41 in this way additionally acts as a shield plate 42 for magnetically and/or electromagnetically shielding towards that side of the cover 41 that faces away from the upper side 11. The cover 41 in the exemplary embodiments shown is disposed so as to be entirely outside the depression 16. In the exemplary embodiment of FIG. 8, the respective depression 16 is assigned such a cover 41.

[0081] The cover 41 in the depression 16 delimits an interior space 40 in which in the functional group 39 component parts of the associated ground assembly 3, for example at least one primary coil 6, are mounted and received.

[0082] In the exemplary embodiments of FIGS. 1 to 6 as well as 8 and 9, a tray 17 is received in a force-fitting manner in the respective depression 16. The tray 17 has a main portion 18 which in the associated depression 16 bears on the lower side 12. The tray 17 furthermore has a, preferably encircling, collar 19 which projects from the main portion 18 and which outside the associated depression 16 bears on the bearing portion 20 of the lower side 12. The tray 17 here, conjointly with the associated cover 41, delimits the interior space 40. In the exemplary embodiments shown, the tray 17 is produced from plastics material and is in particular a plastics-material tray 21. The tray 17 here can be fibre-reinforced. The tray 17 is preferably entirely fibre-reinforced, in particular made from fibre-composite material. As a result of the force-fitting connection between the tray 17 and the main body 10, a force is transmitted between the main body 10 and the tray 17. In this way, the mechanical weakening of the main body 10 caused by the depression 16, in particular the reduced load-bearing capability, is compensated for or at least improved, in particular when loads act locally on the main body 10 in the region of the depression 16, for example as a result of a wheel (not shown) of a motor vehicle 2.

[0083] In the exemplary embodiments of FIGS. 1 to 5 as well as 8 and 9, the collar 19 of the respective tray 17 here is disposed between the bearing portion 20 and the cover 41. The cover 41 thus bears on the bearing portion 20 with the collar 19 intervening therebetween.

[0084] In the exemplary embodiments shown, at least one reinforcement 22 which hereunder is also referred to as the upper reinforcement 22 is provided between the depression 16 and the upper side 11. The upper reinforcement 22 is integrated in the main body 10 and expediently suitable for the electromagnetic interaction of the assemblies 3, 5 such that said upper reinforcement 22 does not influence said electromagnetic interaction. The at least one upper reinforcement 22 is preferably a fibrous reinforcement 23, in particular made from carbon fibres, CFRP and the like. The at least one upper reinforcement 22 here at least in portions, preferably at least between the depression 16 and the upper side 11, runs transversely to the spacing direction 13, in particular along the width 15. In the exemplary embodiment shown, two upper reinforcements 22 which are mutually spaced apart in the spacing direction 13 can be seen.

[0085] In each of the exemplary embodiments of FIGS. 1 to 4 as well as FIGS. 8 and 9, one tray 17 which in comparison to the tray 17 of the exemplary embodiment of FIG. 6 has a greater wall thickness is provided. The tray 17 of the exemplary embodiment of FIG. 6 has thus a lower load-bearing capability than the trays 17 of the exemplary embodiments of FIGS. 1 to 4 as well as FIGS. 8 and 9. This can be compensated for by a stronger upper reinforcement 22.

[0086] In the exemplary embodiments shown, the cover 41 by way of at least one connection 24 is releasably connected to the lower side 12 on the main body 10 in such a manner that the cover 41 is fastened in a force-fitting and releasable manner to the main body 10. In the exemplary embodiments shown, here a plurality of such connections 24 are provided, wherein two of the connections 24 can in each case be seen in FIGS. 1 and 2 as well as in FIG. 6, FIG. 7 and FIG. 9. FIGS. 3 to 5 show in each case views having one of the connections 24, wherein FIG. 4 shows the region marked with IV in FIG. 3 in an enlarged manner. Two such connections 24 for the respective cover 41, thus a total of four connections 24, can be seen in the view of FIG. 8.

[0087] The respective connection 24 has a connection means 25 which is received in the main body 10, and a connection means 26 which is associated with said connection means 25 and conjointly with the latter forms the connection 24, wherein said associated connection means 26 hereunder for improved differentiation is also referred to as the mating connection means 26.

[0088] The main body 10 in the region of the bearing portion 20 here has a receptacle 27 for the respective connection means 25, the connection means 25 being received in said receptacle 27. The respective connection means 25 of the exemplary embodiment shown by way of a thread 29 interacts with a mating thread 31 of the associated mating connection means 26 in the exemplary embodiments. The connection means 25 here is a threaded element 28 having an internal thread 29 (cf. FIG. 5) and a threadless external surface. The associated mating connection means 26 has a bolt 30 having an external thread 31, is in particular a screw 32. The respective connection 24 is thus configured as a screw connection 33.

[0089] As can be derived for example from FIGS. 2 and 3 as well as from FIGS. 6 to 9, the coverplate 1 can have at least one reinforcement 34 which is integrated in the main body 10, runs along the lower side 12 and in relation to the depression 16 is spaced apart transversely to the spacing direction 13, said reinforcement 34 hereunder also be referred to as the lower reinforcement 34. The lower reinforcement 34 thus at least in portions runs transversely to the spacing direction 13. The lower reinforcement 34 here, as can be derived in particular from FIG. 3 and FIG. 4, at least by way of the main body is connected in a force-fitting manner to at least one connection means 25 that is received in the main body 10. In the exemplary embodiments shown, the lower reinforcement 34 and at least one of the connection means 25, in particular the threaded element 28, is wound on the external side. The connection of the lower reinforcement 34 is thus reinforced conjointly with the associated connection means 25. In the illustrations of the exemplary embodiments in FIGS. 1 and 2 as well as FIG. 6, in FIG. 7 and in FIG. 9, two such lower reinforcements 34 can be seen, wherein the respective lower reinforcement 34 encloses an associated one of the connection means 25. In total, two lower reinforcements 34 can thus in each case be seen in FIGS. 1 and 2 as well as FIG. 6, in FIG. 7 and in FIG. 9, said lower reinforcements 34 on sides of the depression 16 that face away from one another being disposed transversely to the spacing direction 13, along the width 15 in the views shown. In the exemplary embodiment of FIG. 8, a further lower reinforcement 34 is disposed between the depressions 16 and connected to in each case one of the connection means 24 associated with the respective depression 16, or the associated cover 41, respectively. The respective lower reinforcement 34 preferably comprises carbon, is in particular carbon-reinforced. For example, the respective lower reinforcement 34 is a carbon reinforcement 35, or CFRP.

[0090] As can be derived for example from FIGS. 1 and 2 as well as FIGS. 6 to 9, the coverplate 1 can have at least one steel reinforcement 36 which extends transversely to the spacing direction 13 and is spaced apart from the respective depression 16. The steel reinforcement 36 here extends transversely to the spacing direction 13 and protrudes from the main body 10. In the sectional views shown in FIGS. 1 and 2 as well as FIGS. 6 to 9, two such steel reinforcements 36 can be seen here. In the exemplary embodiments of FIGS. 1 and 2 as well as FIG. 6, FIG. 7 and FIG. 9, the steel reinforcements 36 disposed on sides of the depression 16 that face away from one another. In the exemplary embodiment of FIG. 8, in each case one steel reinforcement 36 in the view shown is disposed on that side of one of the depressions 16 that faces away from the other depression 16. The respective steel reinforcement 36 serves for attaching the coverplate 1 in the associated application, thus in particular to an associated support 8, as can be derived in particular from FIG. 1. In the exemplary embodiments shown, the respective steel reinforcement 36 extends along the lower side 12 and on that side of the respective lower reinforcement 34 that faces away from the lower side 12.

[0091] In the exemplary embodiment shown, the upper reinforcement 22 that is proximal to the depression 16 outside the depression 16 extends transversely to the spacing direction 13 as a result of a curvature on both sides towards the two steel reinforcements 36, and by way of the two steel reinforcements 36 has in each case an overlap with one of the upper reinforcements 22 of preferably between 10 cm and 30 cm. A transmission of force and load from the upper reinforcement 22, proximal to the depression 16, to the steel reinforcements 36 thus takes place by way of the main body 10. In the exemplary embodiment of FIG. 8, a common proximal upper reinforcement 22 is provided for the two depressions 16 in the view shown, said upper reinforcement 22 moreover as a result of a further curvature extending between the depressions 16 towards the lower side and running between the depressions 16 transversely to the spacing direction 13.

[0092] A depth 37 of the respective depression 16 in the spacing direction 13, also referred to as the integration depth 37, in the exemplary embodiments shown is between 50% and 75% of the thickness 14 of the main body 10. The spacing 38 between the depression 16 and the upper side 11 in the spacing direction 13, also referred to as the congruence 38, is between 25% and 50% of the thickness 14 of the main body 10.

[0093] In the exemplary embodiment of FIG. 8, the two depressions 16 as well as the covers 41 and the trays 17 are of identical configuration. Of course, depressions 16 and/or covers 41 and/or trays 17 of different configurations are however also conceivable.

[0094] In the functional group 39, at least component parts of the ground assembly 3 are at least in part received in the interior space 40 which is delimited by the cover 41, optionally moreover by the tray 17 on the side that faces away from the upper side 11. At least one of the at least one primary coil 6 is in particular received in the interior space 40. Magnetic field conductors, mountings and the like (in each case not shown) can moreover be received in the interior space 40.

[0095] In the exemplary embodiments shown in FIGS. 1 to 8, a can 43 which conjointly with the cover 41 delimits a volume 44 is disposed on that side of the respective cover 41 that faces away from the depression 16, as can be derived in particular from FIG. 3. The can 43 here can be a component part of the coverplate 1. An electrical supply 45 of the ground assembly 3 is received in the volume 44. The electrical supply 45 can include an electrical connector and/or power electronics (in each case not shown) which are/is connected to a mains connector by way of an electricity line for example.

[0096] As can be derived in particular from FIG. 4, the can 43 by way of at least one of the at least one connection 24 is releasably attached to the cover 41. The can 43 here has a projecting shoulder 46 which bears on the cover 41. The shoulder 46 and the cover 41 here, by way of the mating connection means 26 configured as a screw 33, are preloaded in relation to the collar 19 and thus fastened to the main body 10. As can be derived in particular from FIGS. 4 and 5, a seal 47 for sealing the interior space 40 can be disposed here between the collar 19 and the cover 41.

[0097] FIG. 9 in an exemplary manner shows that the coverplate 1 can be prefabricated. The coverplate 1 here does not have any component parts of the ground assembly 3 in the depression 16. Component parts of the ground assembly 3 can thus be subsequently mounted in the interior space 40, the coverplate 1 can thus be retrofitted with the ground assembly 3. If the interior space 40 is substantially empty and in particular free of component parts of the ground assembly 3, a placeholder 50 is disposed in the interior space 40. The placeholder 50 serves for transmitting a load from the upper side 11 through the depression 16 onto the cover 41. Accordingly, the placeholder 50 has at least one support element 51 which bears on the cover 41 and extends through the depression 16. The placeholder 50 in the exemplary embodiment shown has a plurality of such support elements 51 which are disposed in the depression 16 and in the spacing direction 13 extend in each case from between the tray 17 and the cover 41. The placeholder 50 thus has a mesh structure 52. The cover 41 thus absorbs a load even in the absence of any component parts of the ground assembly 3 in the depression 26, that is to say in particular prior to the mounting of the ground assembly 3. It is conceivable here for a lid (not shown) instead of the cover 41 to be used prior to the mounting of the ground assembly 3.