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US 12,580,452 B2Granted
Heatsink with slits to reduce eddy current losses
AssigneesThe Texas &AM University System, Board of Regents, The University of Texas System
InventorsDion S. Antao, Shiyu Zhang, Dorsa Talebi, Matthew C. Gardner, Sri Vignesh Sankarraman
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Abstract
A heatsink for an electric motor, the heatsink comprising a heat spreader configured to be placed in proximity to a winding of the electric motor, a channel formed through the heat spreader and comprising a coolant inlet and a coolant outlet, and a surface feature formed into a back face of the heat spreader that faces the winding and is configured to reduce eddy currents induced in the heatsink.
Claims9
A heatsink for an electric motor, the heatsink comprising:
- a heat spreader configured to be placed in proximity to an end winding of the electric motor;
- a channel formed through the heat spreader and comprising a coolant inlet and a coolant outlet;
- and
- a plurality of islands formed into a back face of the heat spreader that faces the end winding, each island of the plurality of islands being formed by intersections of a plurality of slits and having a triangular shape,
- wherein the plurality of islands are configured to reduce eddy currents induced in the heatsink.
2 more elements
Dependencies are inferred from the claim text.