SPACE POTENTIAL GENERATION DEVICE, FRESHNESS MAINTAINING DEVICE USING SUCH SPACE POTENTIAL GENERATION DEVICE, AND FRYER PROVIDED WITH SUCH SPACE POTENTIAL GENERATION DEVICE

摘要

This space potential generation device is characterized by: being provided with a transformer formed by magnetically joining a primary coil and a secondary coil, a feedback control circuit for returning one terminal of the secondary coil to one terminal of the primary coil to adjust voltage in the secondary coil, an output control means provided on the other terminal of the secondary coil to add low-frequency vibration to the output of the secondary coil, and an electrostatic discharge means disposed on the other terminal of the secondary coil via the output control means and made of a conductive material; and being configured so that there is no ground electrode, the current flowing to the secondary coil is a weak current in the range 0.2-0.002 A, the electrostatic discharge means is covered by an insulating member with insulative properties to a degree that allows the discharge of static electricity of a prescribed voltage into a surrounding space, and an electrical field of a prescribed voltage is formed in the space surrounding the electrostatic discharge means by the static electricity discharged from the electrostatic discharge means.