Ion generating apparatus and air purifying apparatus

Patent metadata

Field	Value
Publication number	US-9005529-B2
Application number	US-200913061099-A
Country	US
Kind code	B2
Filing date	Mar 17, 2009
Priority date	Aug 28, 2008
Publication date	Apr 14, 2015
Grant date	Apr 14, 2015

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 2 a 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 22 a.

First claim

What is claimed is:

1. An ion generating apparatus, comprising:
a plurality of ion generators that generate ions;
a CPU which is to be a center of a control system;
a plurality of output interface devices which are connected to the CPU in parallel and output a driving signal to the plurality of ion generators; and
a driving circuit that repeatedly drives the plurality of ion generators in turns in different phases at a duty of 50% or less to prevent the plurality of ion generators from interfering with each other,
wherein a ratio of ion concentration obtained when the plurality of ion generators are alternately turned on and off at the duty is high compared to a case where one ion generator among the plurality of ion generators is constantly turned on.

2. The ion generating apparatus according to claim 1 , wherein
at least one of the plurality of ion generators is separated from another ion generator.

3. The ion generating apparatus according to claim 1 , further comprising:
an air-blowing fan that blows ions generated by the plurality of ion generators to an outside.

4. The ion generating apparatus according to claim 1 , wherein the plurality of ion generators includes two of the ion generators, and wherein
the driving circuit alternately drives the two ion generators.

5. An air purifying apparatus, comprising:
an ion generating apparatus according to claim 1 ; and
a purifier that purifies the air including ions generated by the ion generating apparatus.

6. The ion generating apparatus according to claim 4 , wherein the two of the ion generators are alternatively driven for about one second at a time.

Assignees

• Tsuda Tsutomu
• Yoshimura Ichiro
• Nishida Hiromu
• Sharp Kk

Inventors

• Tsuda Tsutomu
• Yoshimura Ichiro
• Nishida Hiromu

Classifications

• A61L2209/134

  Distributing means, e.g. baffles, valves, manifolds, nozzles · CPC title

• A61L9/22 Primary

  Ionisation · CPC title

• B03C3/383

  using radiation · CPC title

• F24F8/194

  by filtering using high voltage · CPC title

• F24F8/30

  by ionisation · CPC title