| CPC H02K 9/19 (2013.01) [H02K 3/24 (2013.01); H02K 3/26 (2013.01); H02K 15/0407 (2013.01)] | 19 Claims |
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1. 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;
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:
the plurality of pairs of thermal conductor tracks are DC isolated from the plurality of pairs of planar coils;
the first outer turns and the second outer turns of the plurality of pairs of planar coils form a first comb-like structure; and,
the plurality of pairs of thermal conductor tracks form a second comb-like structure engaged with the first comb-like structure; and,
a wall bounding a portion of a cooling channel, wherein the cooling channel is arranged to receive a cooling fluid and the wall is electrically isolated from the plurality of pairs of planar coils.
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