Patent ID: 7920368
Filing Date: 2011-04-05
Classification: H01T

Abstract:
1. A static eliminator comprising: an ion discharge head equipped with a plurality of discharge needles for discharging ions by corona discharge and a plurality of air blowing openings for ejecting air at a position close to the discharge needles; a high voltage generating circuit for applying a high voltage to the discharge needles; and a control circuit for controlling the high voltage generating circuit, and wherein the ion discharge head has an elongated bar shape and a discharge needle cover formed by an electro conductive porous material covering the whole plurality of discharge needles and the whole plurality of air blowing openings, wherein the discharge needle cover is formed by a member having a U character shape in cross section, and has pores for ejecting air on the entire surface, and wherein the ion discharge head is configured so that discharge of ions is equalized over the whole ion discharge head by discharging ionized air to the outside through the discharge needle cover, and the discharge amount of ions is adjusted by absorbing a part of generated ions in the discharge needle cover.