High power induction work coil for small strip susceptors
First Claim
Patent Images
1. A high power induction coil comprising:
- a core of magnetic material having a central axis, first and second surfaces and a length therebetween, said core having an annular ring-shaped cavity extending from said second surface of said core to near the first surface of is core and having a central leg approximately in a center of said annular ring-shaped cavity connected to the first surface of the core, said central leg being shorter than the length of said core whereby a sectional view through said core along the central axis forms an E-shaped core with a central leg and opposing side legs;
a sole plate attached to the second surface of the core forming a closure for the annular ring-shaped cavity in the core with a space between a lower end of the central leg and the sole plate;
a first fluid conduit extending through said central leg;
a second fluid conduit for providing a communication between an outside surface of said core with the annular ring-shaped cavity and with said first conduit through the space between the lower end of the central leg and the sole plate;
first and second fluid connectors attached to the first surface of the core, each of said fluid connectors being connected to its respective fluid conduit; and
an inductive coil wound loosely around the central leg of said core, said coil having first and second ends extending through said first surface of said core.
1 Assignment
0 Petitions
Accused Products
Abstract
There is disclosed a high power induction heating coil for use in thermoplastic welding where a metallic susceptor is imbedded in a composite assembly and is heated by eddy currents generated by the coil. The coil is comprised of several windings of Litz wire composed of multiple individually insulated strands of copper wire. The coil is wound on a circular E core having a coolant conduit through the center of the core. Coolant is introduced through the central core and returned by circulating through the loosely wound coil to the coolant source.
-
Citations
7 Claims
-
1. A high power induction coil comprising:
-
a core of magnetic material having a central axis, first and second surfaces and a length therebetween, said core having an annular ring-shaped cavity extending from said second surface of said core to near the first surface of is core and having a central leg approximately in a center of said annular ring-shaped cavity connected to the first surface of the core, said central leg being shorter than the length of said core whereby a sectional view through said core along the central axis forms an E-shaped core with a central leg and opposing side legs; a sole plate attached to the second surface of the core forming a closure for the annular ring-shaped cavity in the core with a space between a lower end of the central leg and the sole plate; a first fluid conduit extending through said central leg; a second fluid conduit for providing a communication between an outside surface of said core with the annular ring-shaped cavity and with said first conduit through the space between the lower end of the central leg and the sole plate; first and second fluid connectors attached to the first surface of the core, each of said fluid connectors being connected to its respective fluid conduit; and an inductive coil wound loosely around the central leg of said core, said coil having first and second ends extending through said first surface of said core. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification