REFRIGERATOR-FREEZER

摘要

PROBLEM TO BE SOLVED: To surely prevent the generation of an electric shock caused by a user's touch with a column plate without using an expensive capacitor and a high resistance resistor whose electric resistance is reduced by dew condensation water, and to maintain the vicinity of the column plate at a uniform AC electric field while securing extremely-high safety.

SOLUTION: A refrigerator-freezer includes an electrode 2 for generating an AC electric field in the refrigerator-freezer and an AC power supply 3 connected to the electrode 2 and maintains the inside of the refrigerator-freezer at the AC electric field by applying an AC voltage supplied from the AC power supply 3 to the electrode 2. The refrigerator-freezer generates the AC electric field in its inside by means of the electrode 2 by setting one output terminal 3a of the AC power supply 3 to an open state that the terminal is not connected to anywhere and connecting only the other output terminal 3b to the electrode 2.

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