Patent ID: 11916405
Assignee: GE HYBRID TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 10:
11. A wireless power transmission apparatus, comprising:
a charging surface;
a plurality of primary coils arranged in relation to the charging surface, wherein each primary coil is independently capable of producing an electromagnetic field in a square shape area over the primary coil when the primary coil is activated, wherein the plurality of primary coils includes:
one or more primary coils in a first layer including at least a first primary coil having a wire wound in a square shape with four corner portions, four side portions, and an inner area between the four side portions, wherein the four side portions are equal length;
one or more primary coils in a second layer including at least a second primary coil having a wire wound in a square shape with four corner portions, four side portions, and an inner area between the four side portions, wherein the four side portions are equal length; and
a third primary coil;
wherein the first primary coil is arranged side on side with the second primary coil such that a first side portion of the first primary coil overlies a second side portion of the second primary coil and such that no portion of the first primary coil overlaps the inner area of the second primary coil, and such that an electromagnetic field can be produced on either side of the overlying first and second side portions,
wherein the third primary coil is arranged side on side with the first primary coil such that a third side portion of the third primary coil overlies at least a part of a fourth side portion of the first primary coil, such that no portion of the third primary coil overlaps the inner area of the first primary coil, and
wherein the third side portion is perpendicular to the first side portion of the first primary coil.