Patent ID: 8681471
Filing Date: 2014-03-25
Classification: H01T

Abstract:
1. An ion generator having a discharge electrode and an opposite electrode provided in the vicinity of the discharge electrode, and generating air ions by applying an alternating high voltage between the electrodes to generate corona discharge, wherein the ion generator has a nozzle supporting the discharge electrode, the nozzle being formed with an exposure surface for exposing a tip end portion of the discharge electrode, and a tapered surface extending to an outer peripheral surface from the exposure surface so as to be slanted in a base end portion side direction, the nozzle is formed with an air guide hole communicating with the air supply path, and an ejection port of the air guide hole is formed so as to be open on the tapered surface, outside air surrounding the nozzle is involved in air which flows along the tapered surface from the ejection port and flows in a front direction of the discharge electrode.