Arrangement for Providing Vehicles with Energy Comprising Magnetizable Material

• US 20150137933A1
• Filed: 05/14/2013
• Published: 05/21/2015
• Est. Priority Date: 05/14/2012
• Status: Active Grant

• Current Assignee: ENRX IPT GmbH
• Original Assignee: Bombardier Transportation GmbH (Bombardier Incorporated)
• Inventors: Czainski, Robert
• Granted Patent: US 9,793,040 B2
• Time in Patent Office: Days
• US Class Current: 336/84.R
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 53/39 with position-responsive activation of primary coils
• CPC Class Codes: B60L 9/00 Electric propulsion with power supply external to the vehicle electric propulsion for monorail vehicles, suspension vehicles or rack railways B60L13/00; in combination with batteries or fuel cells within the vehicle B60L50/53
• CPC Class Codes: H01F 27/24 Magnetic cores
• CPC Class Codes: H01F 27/28 Coils; Windings; Conductive connections
• CPC Class Codes: H01F 27/361 made of combinations of electrically conductive material and ferromagnetic material
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01F 41/06 Coil winding
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49071 by winding or coiling

Abstract

The invention relates to an apparatus for providing vehicles with energy by magnetic induction. The apparatus has a primary side electric conductor and a field shaping layer. The invention also relates to a composite layer for shaping magnetic field lines of an electromagnetic field generated by an electric conductor. The composite layer includes a continuous supporting layer and a plurality of elements made of magnetizable material. Finally, the invention relates to a method of generating an apparatus for providing vehicles with energy by magnetic induction.

Claims

1. An apparatus for providing vehicles with energy by magnetic induction, wherein the apparatus comprises:

a primary side electric conductor configured to generate an electromagnetic field while an alternating electric current flows through the conductor and

a field shaping layer comprising magnetizable material configured to shape magnetic field lines of the electromagnetic field,

wherein

the field shaping layer comprises a plurality of elements made of the magnetizable material, wherein neighbouring elements are positioned at a distance to each other.

2. The apparatus of claim 1, wherein the distance between two neighbouring elements is smaller than an extension of the neighbouring elements in a direction across the distance.

3. The apparatus of claim 1, wherein a ratio of an area within the field shaping layer occupied by the elements made of magnetizable material on one hand to a total area of the field shaping layer, including regions within the field shaping layer free of magnetizable material, on the other hand is at least 70% and is not greater than 97%.

4. The apparatus of claim 1, wherein the elements are in the shape of tiles.

5. The apparatus of claim 1, wherein the elements are evenly distributed over an extension of the field shaping layer in a longitudinal direction of the layer or in a lateral direction of the layer.

6. The apparatus of claim 1, wherein the elements are fixed to a continuous supporting layer.

7. The apparatus of claim 6, wherein the continuous supporting layer is made of an electrically conducting material.

8. A composite layer for shaping magnetic field lines of an electromagnetic field generated by an electric conductor, wherein the composite layer comprises

a continuous supporting layer and

a plurality of elements made of magnetizable material,

wherein the elements are positioned at a distance to each other and are fixed to the supporting layer.

9. The composite layer of claim 8, wherein the plurality of elements made of magnetizable material are arranged so as to form a magnetic layer and wherein a ratio of an area within the magnetic layer occupied by the elements made of magnetizable material on one hand to a total area of the magnetic layer, including regions within the magnetic layer free of magnetizable material, on the other hand is at least 70% and is not greater than 97%.

10. The composite layer of claim 8, wherein the elements are in the shape of tiles.

11. The composite layer of claim 8, wherein the elements are evenly distributed over an extension of a field shaping layer in a longitudinal direction of the layer or in a lateral direction of the layer.

12. The composite layer of claim 8, wherein the continuous supporting layer is made of an electrically conducting material.

13. A method of generating an apparatus for providing vehicles with energy by magnetic induction, wherein:

a primary side electric conductor, adapted to generate an electromagnetic field while an alternating electric current flows through the conductor arrangement, is provided and

a field shaping layer, comprising magnetizable material adapted to shape magnetic field lines of the electromagnetic field, is arranged in an ambience of the conductor arrangement,

wherein

the field shaping layer is arranged using a plurality of elements made of the magnetizable material, wherein neighbouring elements are positioned at a distance to each other.

14. The method of claim 13, wherein a ratio of an area within the field shaping layer occupied by the elements made of magnetizable material on one hand to a total area of the field shaping layer, including regions within the field shaping layer free of magnetizable material, is at least 70% and is not greater than 97%.

15. The method of claim 13, wherein the field shaping layer is constituted as a composite layer.

16. The method of claim 13, wherein neighbouring elements are positioned at a distance to each other which is smaller than an extension of the neighbouring elements in a direction across the distance.

17. The method of claim 13, wherein the elements are evenly distributed over an extension of the field shaping layer in a longitudinal direction of the layer or in a lateral direction of the layer.

18. The method of claim 13, wherein the elements are fixed to a continuous supporting layer.

19. The method of claim 18, wherein a composite layer comprising the continuous supporting layer and the elements, the composite layer being wound in the form of a coil or being folded in sections on top of each other, is provided to and placed at a part of a target area on site and is unwound or unfolded so that it occupies the target area.