Patent ID: 11894757
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A coil system, comprising:
a plurality of pairs of planar coils stacked in a vertical direction, each pair of planar coils including:
a first planar coil including a first outer turn; and
a second planar coil including a second outer turn, the second outer turn overlapping the first outer turn and laterally offset from the first outer turn; and
a plurality of pairs of thermal conductor tracks stacked in the vertical direction, each pair of thermal conductor tracks including: a first thermal conductor track; and
a second thermal conductor track overlapping a portion of the first thermal conductor track, laterally offset from the first thermal conductor track, and overlapping the first outer turns of the plurality of pairs of planar coils, wherein:
for each pair of planar coils, the first outer turn is separated, in the vertical direction, from the second outer turn by a first gap;
a first pair of planar coils of the plurality of pairs of planar coils is vertically adjacent to a second pair of planar coils of the plurality of pairs of planar coils;
the first outer turn of the first pair of planar coils is separated, in the vertical direction, from the second outer turn of the second pair of planar coils by a distance less than the first gap;
each first thermal conductor track is separated, in a lateral direction orthogonal to the vertical direction, from a respective first outer turn by a second gap at least six times greater than the distance, the second gap being configured to increase a rate of heat transfer; and
each second thermal conductor track is separated, in the lateral direction, from a respective second outer turn by a third gap at least six times greater than the distance, the third gap being configured to increase a rate of heat transfer.