Diamond-like carbon coating for magnetic cores
AssigneeOlin Corporation
InventorChristopher Deeney
Life of this patent
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Abstract
There is provided a core for a magnetic switch. The core has a plurality of metallic strips, either as a coil or as stacked plates. Each strip is separated from adjacent strips by an electrically insulating polycrystalline carbon layer. The high thermal conductivity of the polycrystalline carbon layer facilitates cooling of the core during operation of the switch, greatly increasing the efficiency of the switch and its operational lifetime.
Claims13
A magnetic switch, comprising a rolled magnetic core comprising:
- a strip of a magnetic material wound into a coil conducting a pulsing electric current;
- and
- a polycrystalline carbon layer having a thickness of from about 0.5 microns to about 10 microns disposed between adjacent portions of said magnetic material, said core being free of channels to receive a liquid coolant.
A magnetic switch, comprising a magnetic core comprising:
- a plurality of strips of a magnetic material stacked in a desired pattern conducting a pulsing electric current;
- and
- a polycrystalline carbon layer having a thickness of from about 0.5 micron to about 10 microns disposed between adjacent strips of said magnetic material, said core free of channels for receiving a liquid coolant.
A magnetic switch, comprising a core comprising:
- a strip of magnetic material wound into a coil conducting a pulsing electric current;
- and
- a polycrystalline carbon layer having a thickness of from about 0.5 microns to about 10 microns disposed between adjacent portions of said magnetic material wherein the packing fraction of said core is about 70%-90% by volume.
A magnetic switch, comprising a core comprising
- a plurality of strips of a magnetic material stacked in a desired pattern conducting a pulsing electric current;
- and
- a polycrystalline carbon layer having a thickness of from about 0.5 micron to about 10 microns disposed between adjacent strips of said magnetic material wherein the packing fraction of said core is about 70%-90% by volume.
Dependencies are inferred from the claim text.