INDUCTION HEATING WORKCOIL
First Claim
1. An induction heating coil comprising:
- a winding of multiple layers of an electrically conductive material wound on a ferrite core; and
solid thermal conductors between said multiple layers of said winding to provide a thermal interface with said multiple layers for cooling said conductive material.
1 Assignment
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Accused Products
Abstract
An induction heating workcoil has a ferrite core on which are wound multiple layers of an electrically conductive material. To cool the winding, solid thermal conductors are inserted between the multiple layers of the winding to provide a thermal interface with the multiple layers. The workcoil can also have a hollow tube that is wound on the outside of the winding with the tube having a liquid circulating through it to cool the winding. The core can have a cross-shaped top and an I-shaped leg with the multiple layers of the winding wound on the leg of the core. The solid thermal conductors can extend above the height of the windings so that the heat to be dissipated is transferred to the upper portion of the workcoil. The multiple layers of the winding are tightly wound on the solid thermal conductors to maximize the thermal interface.
30 Citations
17 Claims
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1. An induction heating coil comprising:
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a winding of multiple layers of an electrically conductive material wound on a ferrite core; and solid thermal conductors between said multiple layers of said winding to provide a thermal interface with said multiple layers for cooling said conductive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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an induction profiler for indirectly heating a non-conductive sheet of material, said induction profiler comprising; one or more induction heating coils, each of said one or more induction heating coils comprising; a winding of multiple layers of an electrically conductive material wound on a ferrite core; and solid thermal conductors between said multiple layers of said winding to provide a thermal interface with said multiple layers for cooling said conductive material. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A ferrite core for use in an induction heating workcoil, said core comprising a cross-shaped top with a bottom surface and an I-shaped leg protruding downwardly from said bottom surface of said top.
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17. The ferrite core of claim 17 further comprising a winding of multiple layers of an electrically conductive material wound on said leg.
Specification