Low-frequency electromagnetic induction heater

Details Low-frequency electromagnetic induction heater Low-frequency electromagnetic induction heater

1990-08-15

1991-10-01

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1075, 219 1067, 219 1079, H05B 612

Patent

active

050535935

ABSTRACT:
A low-frequency electromagnetic induction heater includes a plurality of leg iron cores, a corresponding yoke iron core arranged on the leg iron cores, an induction coil wound around each leg iron core, and an iron plate or metal vessel for producing Joule heat with which the leg iron cores or induction coils are substantially in direct contact. The spaces between the yoke iron core, the leg iron cores and the induction coils are solidly filled with a resinous substrate which has been molded using molten resin. The induction heater produces less noise than other such heaters while providing a higher level of electromagnetic flux density.

REFERENCES:
patent: 3378917 (1968-04-01), Lapham
patent: 3906181 (1975-09-01), Hibino et al.
patent: 4029926 (1977-06-01), Austin
patent: 4095076 (1978-06-01), Tsumori et al.
patent: 4532398 (1985-07-01), Henriksson
patent: 4571472 (1986-02-01), Pollack et al.
patent: 4792652 (1988-12-01), Seguy et al.

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