Inductor devices – With temperature modifier – Heat exchanging surfaces
Patent
1992-03-20
1993-05-11
Kozma, Thomas J.
Inductor devices
With temperature modifier
Heat exchanging surfaces
336 65, 336 83, 336233, H01F 2708
Patent
active
052105130
ABSTRACT:
An electromagnetic apparatus such as a transformer or a single winding inductor is provided with a cooling arrangement. The apparatus has a magnetic core and a coil winding disposed about and carried by a leg of the core. The magnetic core has legs connected to the leg that carries the coil winding and these legs have flat surfaces that directly contact a flat surface of a metallic heat sink to thereby provide a direct heat conductive path from the legs to the heat sink. Heat generated in the coil winding is transferred to the heat sink via the leg that carries the coil winding and then to the heat sink via the legs that directly engage the heat sink. Heat generated in the magnetic core due to hysteresis or eddy current loss is also transferred to the heat sink.
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Khan Iftikhar A.
Wobschall James W.
General Motors Corporation
Kozma Thomas J.
Meland Creighton R.
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