Back to results
US 11,908,616 B2Granted
Coil unit for inductively charging a vehicle
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsJosef Krammer, Florian Niedermeier
Life of this patent
Estimating the term…
Abstract
A coil unit for inductively charging a vehicle is provided. The coil unit includes a coil, wherein the coil includes multiple windings of at least two electric lines. The electric lines are connected in parallel. Each of the electric lines has a respective winding part, in which the windings are formed, and an additional part, in which an additional inductor unit having a predefined electric inductance is arranged.
Claims7
A coil unit for inductively charging a vehicle, comprising:
- a coil, wherein the coil comprises a plurality of windings of at least two electrical lines, wherein
- the at least two electrical lines are connected in parallel,
- each of the at least two electrical lines has a respective winding part and an additional part in which an additional inductance unit is arranged that has a prescribed electrical inductance that is 0.02 times, 0.04 times, 0.06 times, or 0.08 times an electrical inductance of each of the at least two electrical lines in the respective winding part,
- the at least two electrical lines are litz wires, and
- the additional inductance units of the at least two electrical lines have a common ferrite, but are oppositely wound.
2 more elements
Dependencies are inferred from the claim text.