| 摘要 |
This invention relates to an equipment for eliminating static electricity, more specifically speaking, compared to the voltage applied to the discharging electrode in prior corona discharged electrostatic eliminator is a simple AC High Voltage or DC High Voltage, in this invention, a Pulse AC High Voltage coupled with a signal of square pulse type is applied, and by preparing an air vessel into the equipment and sending air of regular pressure through a minute air nozzle, the equipment of this invention can move the ions to a charged body. The corona discharged electrostatic eliminator of this invention comprises a discharging electrode that generates a corona discharge, a ground electrode that inducts ion generation from the voltage applied discharging electrode, a High voltage unit that generates an AC pulse high voltage and applies it to the discharging electrode, and a controller to control the frequency and Duty Ratio of the AC pulse high voltage, wherein the range of the frequency of the high voltage is from 1 [Hz] to 10 [kHz], and the duty ratio is controlled in the 40~60[%] range. The electrostatic eliminator of this invention can eliminate the remaining static electricity of the charged body efficiently regardless of the distance to the charged body through the free control of the frequency and duty ratio of the applied voltage.
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