Ion wind generation device

An ion/ozone wind generation device for generating ion/ozone wind by corona discharge, the ion/ozone wind generation device comprising:

• a discharge electrode body having a circular periphery around an axis and a discharge portion at an edge of the discharge electrode body, and
• a counter electrode body having an annular outer periphery that is formed around a center of the counter electrode body, and a plurality of projections extending from the outer periphery toward thereinside wherein the outer periphery has a consistent radius determined from the center to the outer periphery, each of the projections being formed with two portions that are an end portion and a non-end portion wherein the end portion is defined by a distal end of the projection and the non-end portion is defined by a remaining portion other than the distal end, the corona discharge occurring due to a potential difference generated between the discharge portion and the counter electrode body, wherein
• the end portions of the projections are located spaced apart from one another in a single plane and are disposed around the center of the counter electrode body in the single plane,
• the discharge portion of the discharge electrode body is not disposed in the single plane in which the counter electrode body is disposed, and
• the axis of the discharge electrode body is disposed at the center of the counter electrode body such that the discharge portion of the discharge electrode body and the outer periphery of the counter electrode body are concentrically arranged,
• seen from a view from the axis of the discharge portion, the discharge portion is located inside all the projections,
• each of the projections extends toward the center of the outer periphery of the counter electrode body such that the outer periphery is distant from the center by a radius, and
• each of the projections has a length equal to or greater than at least half of the radius of the counter electrode body.

An ion/ozone wind generation device for generating ion/ozone wind by corona discharge, the ion/ozone wind generation device comprising:

• an electrode pair including
• a discharge electrode body that is in a thin-plate shape with a linear edge, having a discharge portion on the linear edge, and
• a counter electrode body having a linear outer edge portion and a plurality of projections, which are aligned on the linear outer edge portion, each of the projections extending from the outer edge portion, and being formed with two portions that are an end portion and a non-end portion wherein the end portion is defined by a distal end of the projection and the non-end portion is defined by a remaining portion other than the distal end, the corona discharge occurring due to a potential difference generated between the discharge portion and the counter electrode body, wherein
• the end portions of the projections are located spaced apart from one another in a single plane,
• the discharge electrode body is arranged on a flat plane such that the linear edge on which the discharge portion is placed faces the projections, the flat plane being parallel to the single plane with a certain gap,
• the discharge portion is formed either in a thin-plate and knife-edged shape or formed by a linear electrical conductor,
• each of the projections extends in a direction farther from the outer edge portion,
• a distance between the end portion of each projection and the discharge portion is shorter than a distance between the non-end portion of each projection and the discharge portion so that,
• the corona discharge is to occur at the end portions of the projections than at the non-end portions thereof, and
• a concentration of ozone generated by an entirety of the counter electrode body is reduced by an occurrence of the corona discharge based on the distance between the end portion of each projection and the discharge portion and by an occurrence of the corona discharge based on the distance between the non-end portion of each projection and the discharge portion.