Fluid cooled litz coil inductive heater and connector therefor

Abstract

A fluid cooled RF transmission cable, transformer primary or secondary winding, and induction heating coil incorporating litz cable is disclosed. The heating coil comprises: a litz cable including a bundle of mutually electrically insulated, intermixed wire filaments, and a coolant tube, surrounding the litz wire, for conveying a fluid for removing heat generated by the litz cable. Also a combined coolant and electrical connector for providing an electrical connection and coolant to an inductive heating coil including a coolant tube and a litz cable housed inside the coolant tube is described. The connector comprises a tubular conductive member having an inner bore extending through the member, a distal end of the member sealably joining a terminal end of the coolant tube, to place the inner bore in communication with inside of the coolant tube, the litz cable extending into the inner bore and terminating in a low resistance electrical connection to the member, a proximal end of the member adapted for connection to one of a coolant source and a coolant intake.

Dependencies are inferred from the claim text.