Abstract: An air cleaner includes a negative ion generation portion generating negative ions, a positive ion generation portion generating positive ions, a drive portion adjusting a distance between the ion generation portions, a wind velocity sensor detecting wind velocity at positions where the ion generation portions are installed, and a microcomputer controlling the drive portion based on a detection result of the wind velocity sensor and setting distance D between the ion generation portions to an optimal value. Therefore, since the distance between the ion generation portions is set to the optimal value, a large amount of ion generation can be obtained.

Abstract: A housing having a suction port and a discharge port, an impeller 21 and a casing 22 that houses the impeller 21, an air blower 2 housed in the housing, a filter that lets through the air suctioned from the suction port by the air blower 2, and two ion generating sections that generate positive and negative ions are provided. The ion generating section is arranged on a circular-arc guide wall 2a in the casing 22. The positive and negative ions generated by the ion generating section are efficiently included in the air passing through as laminar flow along the circular-arc guide wall 22a.

Abstract: An ion generating element includes a positive ion discharger for generating positive ions and a negative ion discharger for generating negative ions. The ion dischargers are arranged separately from and independently of each other with a distance securing insulation between them. At least one of the dischargers includes a discharging portion for causing electric discharge, and a conducting portion having a voltage same as the discharging portion. The conducting portion surrounds a perimeter or part of the discharging portion. The conducting portion may surround a perimeter or part of the discharging portion so as to partition the ion dischargers from each other.

Abstract: In an ion generation apparatus, an induction electrode for generating positive ions and an induction electrode for generating negative ions are each formed as an independent part and separately mounted on a substrate. Therefore, even if the substrate is warped with changes in temperature, tip end portions of needle electrodes can be positioned at the centers of through holes in the induction electrodes, respectively, and positive ions and negative ions can be stably generated.

Abstract: An ion generating apparatus includes an ion generating element having a positive ion discharger for generating positive ions, and a negative ion discharger for generating negative ions. The positive ion discharger and the negative ion discharger are arranged separately from and independently of each other on a base member with a distance securing insulation between the positive and negative dischargers. The ion generating apparatus also includes a blower for releasing the ions generated by the positive and negative ion dischargers into air and a voltage application circuit. The blower blows wind in a direction parallel to a surface of the base member.

Abstract: An ion generating element includes a positive ion discharger for generating positive ions and a negative ion discharger for generating negative ions. The ion dischargers are arranged separately from and independently of each other with a distance securing insulation between them. At least one of the dischargers includes a discharging portion for causing electric discharge, and a conducting portion having a voltage same as the discharging portion. The conducting portion surrounds a perimeter or part of the discharging portion. The conducting portion may surround a perimeter or part of the discharging portion so as to partition the ion dischargers from each other.

Abstract: An ion generating apparatus includes an ion generating element having a positive ion discharger for generating positive ions, and a negative ion discharger for generating negative ions. The positive ion discharger and the negative ion discharger are arranged separately from and independently of each other on a base member with a distance securing insulation between the positive and negative dischargers. The ion generating apparatus also includes a blower for releasing the ions generated by the positive and negative ion dischargers into air and a voltage application circuit. The blower blows wind in a direction parallel to a surface of the base member.

Abstract: An ion generating element (10) has at least one first discharger (12) for generating positive ions and at least one second discharger (13) for generating negative ions, both fitted or printed on a single dielectric member (11). The first and second dischargers (12) and (13) are each composed of a pair of a first or second discharging electrode (12a) or (13a), respectively, formed on the surface of the dielectric member (11) and a first or second induction electrode (12b) or (13b), respectively, buried in the dielectric member (11), and are arranged both on the same flat surface of the dielectric member (11) but separately from and independently of each other. This construction helps to alleviate the neutralization among the generated ions themselves, thus to effectively release both positive and negative ions, and thereby to enhance the ion generation efficiency.

Abstract: An ion generating element (10) has at least one first discharger (12) for generating positive ions and at least one second discharger (13) for generating negative ions, both fitted or printed on a single dielectric member (11). The first and second dischargers (12) and (13) are each composed of a pair of a first or second discharging electrode (12a) or (13a), respectively, formed on the surface of the dielectric member (11) and a first or second induction electrode (12b) or (13b), respectively, buried in the dielectric member (11), and are arranged both on the same flat surface of the dielectric member (11) but separately from and independently of each other. This construction helps to alleviate the neutralization among the generated ions themselves, thus to effectively release both positive and negative ions, and thereby to enhance the ion generation efficiency.