H - Electricity – 05 – B
Patent
H - Electricity
05
B
307/15, 327/27
H05B 6/36 (2006.01) H05B 6/02 (2006.01) H05B 6/22 (2006.01) H05B 6/42 (2006.01)
Patent
CA 1266094
ABSTRACT Improved induction coil in electric induction heating apparatus wherein the coil has at least two interleaved windings and the windings are electrically in parallel. The windings can be wound simultaneously one on top of the other and/or disposed radially one outside of the other. The coil windings can be wound tightly one on the other or spaced apart radially providing an air gap therebetween for circulating cooling air therethrough. The conductor for the windings may be a low loss conductor and if desired provided with a fluid flow path for circulating a cooling fluid therethrough. The parallel windings can be forced to carry equal current by at least one of current balancing transformers, transposition of the windings by appropriately choosing the number of turns of each coil layer. A split ring bus is disclosed located at each end of the coil and laminated steel yokes are disposed about the coil.
499813
Bba Canada Limited
Perley-Robertson Hill & Mcdougall Llp
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