| 摘要 |
A high-efficiency thawing device for thawing a considerably thick, frozen object quickly and uniformly. High-frequency electric power from a high-frequency generator circuits (52, 62, 72) is supplied to pairs of electrodes (55a and 55b, 65a and 65b, 75a and 75b) through impedance-matching circuits (53, 63, 73) including transformers (54, 64, 74) so as to thaw a frozen object (F) placed between the electrodes by dielectric heating. The impedance-matching circuits (53, 63, 73) comprise capacitance parts (C) and inductance parts (L), and the inductance parts (L) have conductors of graduated length, i.e., they are longer than those located in the upstream direction of the conveyer.
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