Improvements made to the cooling of coils of an induction heating system
First Claim
Patent Images
1. An electromagnetic induction heating coil comprising:
- a thermally conductive unitary cooling tube;
a first conductor layer wound as a helix around an outer surface of the cooling tube, the cooling tube in thermal contact with only an inner surface of the helical layer;
a second conductor layer, wound as a helix in an opposite sense, around the first conductive layer, and in thermal contact therewith, the helix of the second layer skewed relative to the cooling tube;
both helical layers coaxial with the cooling tube; and
cooling fluid circulating through only the interior of the tube for producing heat transfer from the conductor layer, through the tube, thereby cooling the conductor layer.
0 Assignments
0 Petitions
Accused Products
Abstract
Electromagnetic-induction heating coil, especially for the heating of metallurgical products, in which coil conductors are cooled with the aid of a tube in which a cooling fluid, in thermal contact with the conductors, circulates, wherein the conductors are wound in at least one ply, as a helix around the cooling tube so that the ply has at least one twist of one complete turn between two electrical terminals of the coil.
26 Citations
5 Claims
-
1. An electromagnetic induction heating coil comprising:
-
a thermally conductive unitary cooling tube; a first conductor layer wound as a helix around an outer surface of the cooling tube, the cooling tube in thermal contact with only an inner surface of the helical layer; a second conductor layer, wound as a helix in an opposite sense, around the first conductive layer, and in thermal contact therewith, the helix of the second layer skewed relative to the cooling tube; both helical layers coaxial with the cooling tube; and cooling fluid circulating through only the interior of the tube for producing heat transfer from the conductor layer, through the tube, thereby cooling the conductor layer. - View Dependent Claims (3, 4, 5)
-
-
2. An electromagnetic induction heating coil comprising:
-
a thermally conductive unitary cooling tube; a first layer of conductor strands wound helically around an outer surface of the cooling tube; a second layer of conductor strands wound helically and in an opposite sense from the first layer, and braided in thermal contact therewith; the strands of each layer skewed relative to the cooling tube and coaxial with the cooling tube; and cooling fluid circulating through only the interior of the tube for producing heat transfer from the braided conductor layers, through the tube, thereby cooling the conductor layers.
-
Specification