Inductor devices – With temperature modifier – Hollow conductor coil
Patent
1996-11-27
1998-09-15
Kozma, Thomas J.
Inductor devices
With temperature modifier
Hollow conductor coil
336175, 336195, 336223, H01F 2710, H01F 2730
Patent
active
058085351
ABSTRACT:
A high frequency water cooled transformer for coupling a power source to an induction heating coil and which serves to convert the output of the power source into values appropriate for the induction heating coil, and to match the impedance of the power source with the impedance of the heating coil for maximum power transfer efficiency. The primary of the transformer is adapted to be connected to the power source and the secondary is adapted to be connected to the induction heating coil. The transformer includes a secondary formed of two parallel self-supporting elongated open-ended hollow electrically conductive cylindrical members. A pair of electrically conductive terminal blocks are respectively mounted on one of the ends of the cylinders and electrically connected to the cylinders. The primary winding is wound longitudinally through the two secondary cylinders, and the ends of the primary winding are connected to appropriate terminal pins. An apertured disc is mounted at each end of the cylindrical secondary members to receive the wires of the primary winding and to form cooling chambers in each of the cylindrical secondary members. The discs are sealed to the wires of the primary winding and to the cylindrical secondary members to render the cooling chambers waterproof. Means is provided for circulating a coolant through the cooling chambers in the cylindrical secondary members and through the terminal blocks. Each secondary cylindrical member is surrounded by a plurality of ferrite toroid cores, and the cores are sealed to the outer surfaces of the secondary cylindrical members by an appropriate heat conductive potting compound.
REFERENCES:
patent: 1820018 (1931-08-01), Gebhard
patent: 4134091 (1979-01-01), Rogers
Kozma Thomas J.
L. C. Miller Company
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