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US-12623556-B2 - Roadway coverplate

US12623556B2US 12623556 B2US12623556 B2US 12623556B2US-12623556-B2

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.

Inventors

  • Christopher Laemmle
  • Timo Laemmle
  • Holger Schroth

Assignees

  • MAHLE INTERNATIONAL GMBH

Dates

Publication Date
20260512
Application Date
20210929
Priority Date
20200930

Claims (19)

  1. 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; a cover covering the depression and which, outside the depression, bears on a bearing portion of the lower side; and a tray arranged in the depression, the tray including i) a main portion bearing on the lower side of the main body in the depression and ii) a collar projecting from the main portion and disposed at least partially outside the depression; wherein an interior space configured to receive the assembly is defined by and between the tray and the cover in a spacing direction extending from the upper side to 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. 2 . The roadway coverplate according to claim 1 , wherein the cover is configured as a planar and closed plate.
  3. 3 . 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 the spacing direction.
  4. 4 . The roadway coverplate according to claim 3 , wherein the at least one upper reinforcement is a fibrous reinforcement.
  5. 5 . 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.
  6. 6 . The roadway coverplate according to claim 5 , further comprising a lower reinforcement connected to the connector, wherein outside the associated connector the lower reinforcement at least in part extends transversely to the spacing direction.
  7. 7 . The roadway coverplate according to claim 6 , wherein the lower reinforcement extends along the lower side.
  8. 8 . The roadway coverplate according to claim 5 , wherein: the connector includes a threaded body received in the main body, the threaded body including a thread; and the associated mating connector includes a bolt having a mating thread.
  9. 9 . 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.
  10. 10 . 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 the spacing direction, is disposed spaced apart from the depression and protrudes from the main body transversely to the spacing direction.
  11. 11 . The roadway coverplate according to claim 10 , 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.
  12. 12 . The roadway coverplate according to claim 1 , wherein the bearing portion of the lower side of the main body, the collar of the tray, and the cover are arranged directly one above another in the spacing direction.
  13. 13 . The roadway coverplate according to claim 1 , further comprising a releasable placeholder for the assembly disposed in the depression, wherein: the placeholder includes at least one support element that extends from the cover to the main portion of the tray within the interior space; and the at least one support element is configured to transmit a load from the upper side to the cover.
  14. 14 . The roadway coverplate according to claim 1 , wherein the tray and the cover are structured as separate, individual components.
  15. 15 . The roadway coverplate according to claim 1 , wherein the main portion of the tray is generally cup-shaped and has an open end facing toward the cover in the spacing direction.
  16. 16 . The roadway coverplate according to claim 1 , wherein: the main body has an underside surface and a side-surface that at least partially define the depression; the main portion of the tray includes a bottom wall and a sidewall projecting from the bottom wall toward the cover; the bottom wall of the tray is disposed on the underside surface of the main body; and the sidewall of the tray is disposed on the side-surface of the main body.
  17. 17 . The roadway coverplate according to claim 16 , wherein the collar of the tray projects transversely from a distal end of the sidewall of the tray, the distal end of the sidewall of the tray disposed opposite the bottom wall of the tray.
  18. 18 . 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; a cover bearing on a bearing portion of the lower side and covering the depression; and a tray received in the depression in a force-fitting manner, the tray including i) a main portion bearing on the lower side of the main body in the depression and ii) a collar projecting from the main portion, the collar disposed at least partially outside the depression and bearing on the bearing portion of the lower side; wherein an interior space is defined by and between the tray and the cover in a spacing direction extending from the upper side to the lower side; 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 interior space.
  19. 19 . 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; a planar, metal cover bearing on a bearing portion of the lower side of the main body and covering the depression; and a tray received in the depression in a force-fitting manner, the tray including i) a main portion arranged on the lower side of the main body in the depression and ii) a collar projecting from the main portion and disposed at least partially outside the depression; wherein the collar of the tray is arranged on the bearing portion of the main body between the bearing portion of the main body and the cover in a spacing direction extending from the upper side to the lower side; wherein the tray and the cover are structured as separate, individual components; wherein an interior space configured to receive an assembly of the motor vehicle inductive charging device is defined by and between the tray and the cover in the spacing direction; 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.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to German Patent Application No. DE 10 2020 212 391.8, filed on Sep. 30, 2020, the contents of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present invention relates to a roadway coverplate for an assembly of an inductive charging device which is used for inductively charging a motor vehicle that is situated on the roadway coverplate. The invention moreover relates to a functional group having such a roadway coverplate and an assembly of an inductive charging device. BACKGROUND In the case of electrically or partially electrically driven motor vehicles, regular charging of an electrical energy accumulator of the motor vehicle is necessary. To this end, a direct electrical connection between the motor vehicle and an external electrical energy source, for example a mains connector, can be established in principle. This however requires a manual operation of a user. It is furthermore known for the motor vehicle, that is to say in particular the electrical energy accumulator, which can be a rechargeable battery for example, to be inductively charged. Corresponding charging devices here have in each case one assembly in the motor vehicle and outside the motor vehicle. A primary coil is situated in the assembly outside the motor vehicle and inductively interacts with a secondary coil of the assembly in the motor vehicle in order for the motor vehicle to be charged. The assembly in the motor vehicle is also referred to as a motor vehicle assembly or vehicle assembly. The assembly outside the motor vehicle when in operation is typically situated below the motor vehicle and is also referred to as a ground assembly. In order for the ground assembly to be used in a simplified manner and to be better protected in relation to external influences and manipulations, it is known, for example from WO 2017/060387 A1, for the primary coil of the ground assembly to be integrated in concrete that is capable of being magnetized. From DE 10 2017 117 623 A1 it is known for the ground assembly to be integrated in a concrete slab which simultaneously serves as a roadway. This concrete slab simultaneously serves as a cover part and is thus a roadway coverplate. In order for the assembly to be integrated, the roadway coverplate has a recess which by way of a protective layer is protected in relation to external influences, such as, for example, in relation to the ingress of water. The roadway coverplate furthermore has a reinforcement which runs along a lower side of the roadway coverplate. SUMMARY The present invention is concerned with the object of stating improved or at least different embodiments for a roadway coverplate of the type mentioned above as well as for a functional group having such a roadway coverplate and an assembly of an inductive charging device, said embodiments being distinguished in particular by an improved application capability and enhanced reliability. This object is achieved according to the invention by the subject matter of the independent claim(s). Advantageous embodiments are the subject matter of the dependent claim(s). The present invention is based on the general concept of providing, in a roadway coverplate, on a lower side of a main body of the roadway coverplate, a depression for receiving an assembly of an inductive charging device and of closing off the depression by a cover which outside the depression, on the lower side, is fastened in a force-fitting manner to the main body and is configured for absorbing loads by way of the main body. The provision of the depression on the lower side enables the upper side of the roadway coverplate to remain unchanged, in particular an integrity of the upper side to be maintained. The provision of the depression on the lower side moreover enables a simplified integration of the assembly in the roadway coverplate. At the same time, the assembly is better protected in relation to external influences, in particular as a result of unauthorized manual interference. The application capability of the roadway coverplate is thus improved. The force-fitting fastening of the cover to the lower side on the main body leads to a transmission of force between the main body and the cover, which thus conjointly supports a load acting on the roadway coverplate. The knowledge that the provision of the depression on the lower side leads to a weakening of the mechanical properties, in particular to a reduction in terms of the load-bearing capability, of the main body, is utilized here. The force-fitting fastening and the cover are consequently designed in such a manner that said fastening and said cover compensate for or at least increase the reduced load-bearing capability which is associated with the depression and the material weakening resulting therefrom in the region of the depression. In other words, the reduced load-bearing capability by way of the force-fitting fa