Patent ID: 8355237

Claim:
An ion generator applying, under a state of causing air to flow in between a discharge electrode and an opposite electrode, an AC high voltage to the discharge electrode and the opposite electrode, and generating a corona discharge to ionize the air, the ion generator comprising: a device main body, in which the opposite electrode is mounted so as to protrude forward; and a discharge needle unit including a holder and a sleeve, and detachably mounted into the device main body from a back side of the device main body, the discharge electrode being mounted in the holder so as to protrude from one end portion of the holder, and the sleeve being detachably mounted into one end portion of the holder, being fitted in the opposite electrode, and forming an ion generating space between the discharge electrode and the sleeve, wherein the discharge electrode and the sleeve are detachable from the holder under a state of removing the discharge needle unit from the device main body.