SECONDARY TRANSFORMER UNIT FOR MOUNTING ON A VEHICLE HAVING AN ELECTRIC DRIVE, AND VEHICLE HAVING AN ELECTRIC DRIVE

• US 20140253278A1
• Filed: 10/05/2012
• Published: 09/11/2014
• Est. Priority Date: 10/18/2011
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Elias, Bjrn, Ohlen, Christian, Ebner, Anca
• Granted Patent: US 9,396,862 B2
• Time in Patent Office: Days
• US Class Current: 336/221
• CPC Class Codes: B60L 53/12 Inductive energy transfer
• CPC Class Codes: H01F 27/022 Encapsulation
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H02J 50/10 using inductive coupling
• 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

Abstract

A secondary transformer unit for mounting on a vehicle having an electric drive includes at least one secondary core, and at least one secondary coil that is arranged on the secondary core. At least one outer skin is provided to envelope the secondary core and contains reinforcing fibers. The outer skin is configured to retain inside the at least one outer skin fragments produced when the at least one secondary core breaks.

Claims

1-9. -9. (canceled)

10. A secondary transformer unit for attachment to a vehicle having an electric drive, the secondary transformer unit comprising

at least one secondary core;

at least one secondary coil arranged on the secondary core; and

at least one outer skin which envelops the secondary core and contains reinforcing fibers, and which is configured to retain inside the at least one outer skin fragments produced when the at least one secondary core breaks.

11. The secondary transformer unit of claim 10, wherein the at least one outer skin is at least partially attached to the at least one secondary core.

12. The secondary transformer unit of claim 10, wherein the at least one outer skin is tear-resistant.

13. The secondary transformer unit of claim 10, wherein the at least one outer skin comprises at least one structure selected from a woven fabric, a knit fabric, a network and a film.

14. The secondary transformer unit of claim 13, wherein the at least one structure selected from a woven fabric, a knit fabric and a network comprises fibers selected from aramide fibers, glass fibers and carbon fibers.

15. The secondary transformer unit of claim 10, wherein the reinforcing fibers comprise fibers selected from aramide fibers, glass fibers and carbon fibers.

16. A vehicle with an electric drive, the vehicle comprising at least one secondary transformer unit having

at least one secondary core;

at least one secondary coil arranged on the secondary core; and

at least one outer skin which envelops the secondary core and contains reinforcing fibers, and which is configured to retain inside the at least one outer skin fragments produced when the at least one secondary core breaks.

17. The vehicle of claim 16, wherein the at least one secondary transformer unit is arranged at at least one of the following locations:

a front section of the vehicle, a rear section of the vehicle, a left side of the vehicle, a right side of the vehicle, a bottom side of the vehicle and a roof of the vehicle.

18. The vehicle of claim 17, further comprising a front license plate which is arranged in a direction of travel in front of the at least one secondary transformer unit when the at least one secondary transformer unit is arranged at the front section of the vehicle.

19. The vehicle of claim 17, further comprising a rear license plate which is arranged in a direction of travel in behind the at least one secondary transformer unit when the at least one secondary transformer unit is arranged at the rear section of the vehicle.