High-frequency thawing apparatus
AssigneeYamamoto Vinita Co., Ltd.
InventorYasuji Yamamoto
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Abstract
An object of a high-frequency thawing apparatus is to uniformly thaw an entirety of an article with high efficiency and high-speed, particularly an article having a relatively large thickness. The apparatus is so constructed that a high-frequency power from a high-frequency generating circuit is supplied to a pair of opposing electrodes by way of an impedance matching circuit including a transformer to thaw an article (F) which is carried in between the opposing electrode pair by dielectric heating. The impedance matching circuit includes an electrostatic capacitor section (C) and an inductance section (L). A conductor each constituting the inductance section (L) has such a length that the downstream-located conductor with respect to the transport direction of a conveyor is longer than the upstream-located conductor.
Claims11
A high-frequency thawing apparatus comprising:
- a conveyor unit for transporting an article to be thawed in a predetermined direction;
- a thawing chamber in which at least part of the conveyor unit over which the article is to be transported is encased;
- a plurality of opposing pairs of electrodes, each electrode pair arrayed side by side in the transport direction of the conveyor unit apart at a certain interval in the thawing chamber;
- a plurality of high-frequency power generating circuits provided in correspondence to the plurality of electrode pairs to generate a high-frequency field in between each pair of the electrodes;
- and
- a plurality of impedance matching circuits provided between the respective high-frequency power generating circuits and conductors each impedance matching circuit including a conductor with an inductance different to each other.
Dependencies are inferred from the claim text.