MULTI-LAYER-MULTI-TURN HIGH EFFICIENCY INDUCTORS FOR AN INDUCTION HEATING SYSTEM
First Claim
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1. An induction heating system comprising:
- an input power source;
a first control circuit electrically connected to the input power source;
an inverter circuit, electrically connected to the input power source;
a load circuit comprising an inductor, electrically connected to the input power source and control circuit, the inductor comprising;
a first conductor layer;
a second conductor layer spaced apart from the first conductor layer, the first conductor layer and the second conductor layer being electrically conductive;
an insulator layer positioned in the space between the first conductor layer and the second conductor layer; and
at least two connectors electrically connecting the first conductor layer and the second conductor layer in parallel, wherein each connector has an electrical impedance;
wherein when an electrical current, supplied by the input power source, is propagated within at least the first conductor layer a magnetic flux is generated within the inductor when a change in at least one of a frequency, a magnitude, or a waveform shape of the propagated electrical current; and
wherein when a ferromagnetic material is positioned adjacent the inductor, heat is generated.
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Abstract
A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.
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Citations
36 Claims
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1. An induction heating system comprising:
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an input power source; a first control circuit electrically connected to the input power source; an inverter circuit, electrically connected to the input power source; a load circuit comprising an inductor, electrically connected to the input power source and control circuit, the inductor comprising; a first conductor layer; a second conductor layer spaced apart from the first conductor layer, the first conductor layer and the second conductor layer being electrically conductive; an insulator layer positioned in the space between the first conductor layer and the second conductor layer; and at least two connectors electrically connecting the first conductor layer and the second conductor layer in parallel, wherein each connector has an electrical impedance; wherein when an electrical current, supplied by the input power source, is propagated within at least the first conductor layer a magnetic flux is generated within the inductor when a change in at least one of a frequency, a magnitude, or a waveform shape of the propagated electrical current; and wherein when a ferromagnetic material is positioned adjacent the inductor, heat is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An induction heating system comprising:
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an input power source; a control circuit electrically connected to the input power source; an inverter circuit, electrically connected to the input power source; a load circuit comprising an inductor, electrically connected to the input power source and control circuit, the inductor comprising; a first inductor subassembly comprising a first conductive conductor layer and a second conductive conductor layer spaced apart from the first conductor layer, the first conductor layer and the second conductor layer being electrically conductive; a first insulator layer positioned in the space between the first conductor layer and the second conductor layers; a first connector electrically connecting the first conductor layer and the second conductor layer in parallel, the first connector having a first connector electrical impedance; a second inductor subassembly comprising a third conductor layer and a fourth conductor layer spaced apart from the third conductor layer, the third conductor layer and the fourth conductor layer being electrically conductive; a second insulator layer positioned in the space between the third conductor layer and the fourth conductor layers, and a second connector electrically connects the third conductor layer and the fourth conductor layer in parallel, the second connector having a second connector electrical impedance, wherein the first inductor subassembly is electrically connected in series to the second inductor subassembly; wherein when an electrical current, supplied by the input power source, is propagated within at least the first conductor layer a magnetic flux is generated within the inductor when a change in at least one of a frequency, a magnitude, or a waveform shape of the propagated electrical current; and wherein when a ferromagnetic material is positioned adjacent the inductor, heat is generated. - View Dependent Claims (36)
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Specification