Smc Corporation

Smc Kabushiki Kaisha

Masayuki Orihara

Akira Tadano

Takayuki Toshida

Satoshi Suzuki

Takashi Yasuoka

Suguru Konno

Nobuhiro Fujiwara

Hitoshi Yamamoto

Kenji Fukushima

Ionizer

An ionizer that acts as an electric charge generating device includes a first high voltage power source and a second high voltage power source, which are disposed in confronting relation to each other, and a first wiring arrangement and a second wiring arrangement, which are disposed in confronting relation to each other. The first high voltage power source applies an AC high voltage to needle electrodes via the first wiring arrangement, whereas the second high voltage power source applies an AC high voltage, which is 180&#xb0; out of phase with the aforementioned AC high voltage, to needle electrodes via the second wiring arrangement.

Electric charge generating device

An ionizer includes two needle electrodes, and a high voltage generating unit for applying a first AC voltage to one of the needle electrodes, and for applying a second AC voltage, having a frequency higher than a frequency of the first AC voltage, to another of the needle electrodes. Static charge of a charged body is eliminated by releasing generated positive ions or negative ions, which are generated in the vicinity of the needle electrodes, toward the body.

Ionizer and static charge eliminating method

An ionizer includes a fan for blowing air, the fan being provided in an air blowing port which opens in a case, and a plurality of discharge electrodes for generating positive and negative ions by corona discharge, the discharge electrodes being provided in the case at positions facing the air blowing port. The ionizer also includes a plurality of discharge electrode pairs each constituted by two discharge electrodes for generating ions of different polarities. When a tip-center distance denotes a distance from the electrode tip to the center of the air blowing port, the tip-center distances of the two discharge electrodes in the discharge electrode pairs are different from each other.

Discharge electrodes for generating ion and a member for cleaning the discharge electrodes are mounted on an electrode support frame, which is detachably attached to the case of an ionizer. When the electrode support frame is attached to the case, the cleaning member occupies a retraction position where the cleaning member does not shut off or disturb air that is supplied from a fan. Upon the detachment of the electrode support frame from the case, the cleaning member becomes moveable. Then, the cleaning member is moved while being brought into contact with the discharging parts of the discharge electrodes one after another. As a result, the cleaning member sweeps dust or other particles off the discharging parts thereof.

Ionizer having mechanism for cleaning discharge electrodes

An ionizer is formed by coupling a fan unit provided with a discharge electrode and a fan and a control unit provided with an indicator and an adjuster to each other, and both units are changeable between a normal coupling condition, where both are directed in the same direction, and an opposite coupling condition, where they are directed in opposite directions to each other, and in addition, a power/signal arrangement of the connection terminals of the separate connector is bilaterally symmetrical such that same power and signals ale transmitted and received between the separate connectors of both units connected to each other in either coupling condition of aforementioned both units.

Growing community of inventors

Tsukubamirai, Japan

Masayuki Orihara