INTERFERENCE EFFECT SUPPRESSION INDUCTION HEATING COIL

• Main Author: MATSUNAGA TETSUO
• Format: Patent
• Language: English
• Published: 06.02.2014
• Subjects: ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY

PROBLEM TO BE SOLVED: To obtain an induction heating coil capable of suppressing failure due to magnetic flux interference so that a wide area of large circle can be induction heated uniformly, or a pipeline of extended length can be induction heated uniformly at equal interval, by using a plurality of commercially available induction heating inverters of relatively small capacity having different oscillation frequencies.SOLUTION: Interference failure is suppressed by splitting one induction heating coil into two, and combining two split coils so that a current flows through each coil in a direction for creating an induction heating flux properly, and electromotive forces generated by magnetic interference can be cancelled in the same coil. Since induction of a high voltage due to interference flux induction can be suppressed by using the interference effect suppression induction heating coil, even if the interval to other adjoining coil is shortened, uniform heating can be ensured.