Patent ID: 11916343
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A current transferring device for an electric machine comprising:
a rotary bearing member fixed in a rotor shaft of the electric machine and configured to rotate with the rotor shaft, the rotary bearing member including:
a first compartment filled with a conducting fluid, the first compartment having a first opening and a rotor positive connector that is in electrical contact with the conducting fluid therein and electrically connected to a rotor positive pole of the electric machine, and
a second compartment filled with a conducting fluid and electrically insulated from the first compartment, the second compartment having a second opening and a rotor negative connector that is in electrical contact with the conducting fluid therein and electrically connected to a rotor negative pole of the electric machine, wherein the first opening and the second opening face opposite axial directions or a same axial direction; and

a non-rotary component closing the first and second openings including:
a power positive connector extending into the first compartment and being in electrical contact with the conducting fluid therein, and
a power negative connector extending into the second compartment and being in electrical contact with the conducting fluid therein.