Patent ID: 11870307
Assignee: UNIVERSITAT STUTTGART
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method of using an electrically conductive material in an energy transfer device to convert electrical energy contactlessly into electrical energy with the aid of a magnetic field in order to electrically excite a rotor of an electrical machine, the method comprising:
arranging the electrically conductive material as a material layer on at least one active part of the energy transfer device,
wherein an active part of the energy transfer device is a part of the energy transfer device which is at least partially exposed to the magnetic field used for energy transfer, and
wherein the electrical conductivity of the applied electrically conductive material is greater than the electrical conductivity of the at least one active part; and
wherein a layer thickness of the arranged electrically conductive material layer is selected as a function of a predetermined frequency of the magnetic field used for energy transfer.