JP2013225379A - Ion generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ion generator for solving the problem that an ion generator in the conventional advanced technology has a hard tie to generate much ion wind because the ion generator is made of a needle electrode and a cylindrical electrode even though the ion generator is required to generate much ion wind in order to make deodorization further effective as a deodorization device.SOLUTION: An ion blowing opening 6 is provided on a front of a case 4, a mesh electrode 3 for forming a plus electrode is provided adjacently to the blowing opening 6 so as to cause ion wind to flow to the ion blowing opening 6, an opposite discharge electrode is provided such that a tip of a needle electrode 1 of a minus electrode is located so as to be opposite on a rough central axis line of the mesh electrode 3, and an ion generator uses discharge airflow wind generated by applying high voltage to a counter electrode.

Description

  The present invention relates to an ion generator, and more particularly, to an ion generator using a discharge airflow generated by applying a voltage to a discharge electrode composed of a combination of a mesh electrode and a needle electrode, and By using this ion generator, an air purifier and a deodorizing / sterilizing apparatus can be configured.

  Conventionally, a discharge electrode is formed by a cylindrical electrode and a needle-shaped electrode disposed near one opening of the cylindrical electrode, and the discharge electrode is charged by applying a high voltage to the discharge electrode. Thus, a wind containing ions and ozone can be generated by the Cron force and the discharge energy by corona discharge, and the wind is provided to blow out from the other opening of the cylindrical electrode, The discharge electrode is disposed inside the cylindrical body, and a deodorizing filter is disposed before, after, or on one side of the discharge electrode, and the deodorizing filter is disposed between the resin nonwoven fabric and the resin film. There is a deodorizing apparatus (see, for example, Patent Document 1) formed in a honeycomb shape by a sheet material formed by interposing a pulp containing a deodorant and a water-absorbing polymer.

Japanese Patent No. 3007311 (refer to the claims, detailed description of the invention, and FIGS. 1 to 7)

However, the conventional deodorizing apparatus has the following drawbacks.
In order to make deodorization more effective as a deodorizing device, it is required to generate a large amount of ion wind from an ion generator. However, the conventional prior art device is formed of a needle electrode and a cylindrical electrode. Therefore, it was difficult to generate a large amount of ionic wind.
The ion generator of the present invention aims to solve the above-mentioned drawbacks.

A first aspect of the present invention is an ion generator as set forth in claim 1 and is as follows.
An ion outlet is provided on the front surface of the case, and a mesh electrode for forming a positive electrode is provided adjacent to the outlet so that an ion wind flows through the ion outlet, and is opposed to a substantially central axis of the mesh electrode. The discharge electrode which opposes so that the front-end | tip of the needle-like electrode of a negative electrode may be located, and is a structure using the discharge airflow generated by applying a high voltage to a counter electrode.

A second invention of the present invention is an ion generator as set forth in claim 2 and is as follows.
In addition to the invention described in claim 1, the mesh number of the mesh electrode is 1 to 8 mesh.

Since the ion generator according to the present invention has the configuration as described above, the following effects can be obtained.
(1) Compared to the ion wind that can be generated by an ion generator composed of a conventional needle electrode and a cylindrical electrode, the ion generator composed of the needle electrode and the mesh electrode of the present invention has about twice as many ions. Wind can be generated.
(2) The mesh electrode can use a mesh standard product (commercially available) of each mesh, and since it is a mesh, it can be processed more easily than a cylindrical electrode or a slit electrode.
(3) Since the structure is simple, cleaning and maintenance are easy.

It is a schematic explanatory drawing which shows the generator of the ion wind by the corona discharge formed using the minus electrode of this invention as the needle electrode, and the plus electrode as the mesh electrode. It is a schematic plan view which shows the place seen from the mesh electrode side of the plus electrode of this invention. It is a schematic explanatory drawing which shows the generator of the ion wind by the corona discharge formed by making the conventional negative electrode into the acicular electrode and making the positive electrode into the cylindrical electrode. It is a schematic plan view which shows the place seen from the cylindrical electrode side of the conventional plus electrode. It is a schematic front view which shows one specific Example of this invention. FIG. 6 is a schematic plan view of FIG. 5. It is the other Example which made the shape of the blowing outlet of the ion wind of the present invention fan shape, (A) is a schematic front view, (B) is a schematic right side view, (C) is a schematic right side view showing an electrode part. is there.

  An ion outlet is provided on the front surface of the case, and a 1-8 mesh mesh electrode is formed adjacent to the ion outlet to form a positive electrode so that ion wind flows through the ion outlet. Is a generator that uses a discharge airflow generated by applying a high voltage to the counter electrode so that the tip of the needle electrode of the negative electrode is positioned so as to be opposed to the electrode.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic explanatory view showing an ion generator of the present invention, and FIG. 2 is a schematic plan view of FIG.
First, the generation of ion wind by a general corona discharge will be briefly described with reference to FIGS. 3 and 4. The conventional ion generator shown in FIGS. 3 and 4 has two electrodes, that is, a negative needle shape. When a high voltage is applied between the electrode 1 and the positive cylindrical electrode 2, corona discharge is generated. When a high voltage is applied from one negative needle electrode 1 side to the positive cylindrical electrode 2 side of these two electrodes, an ion wind is generated by corona discharge, and the ion wind is cylindrical from the needle electrode 1 side. It flows in the direction of electrode 2. The magnitude of the corona discharge generated in the cylindrical electrode 2 is determined by the area of the edge diameter (edge portion).
Therefore, what must be solved is that the ability required for the positive electrode is to generate a large amount of ion wind, and to smoothly pass the generated ion wind and blow it to the front.

すなわち、実験例として２０ｍｍ四方の空間において、プラス電極に本願発明の網と従来例の円筒を使用し、イオン風の発生量を測定し、比較した結果である。
この空間を２０ｍｍ四方として理由は、円筒電極において、一対のコロナ放電が最適電圧で安定する寸法であるからである。
マイナスの針状電極１とプラスの網状電極３の位置関係は針状電極１を網状電極３の格子の中心に配置し、均一な放電を行った。従って、網のメッシュの放電部分は、全９面（図２の実施例の場合）となる。
測定器は、市販されている共立電子株式会社製エアーイオンカウンターＫＥＣ−９９０型を使用し測定したものである。
放電する部分は、本願発明の網状電極３の場合と従来例の円筒状電極１の場合では、約２倍のイオン量が発生するものであることが理解できる。 Next, the ion generator of this invention is demonstrated based on FIG. 1, FIG.
As in the conventional example, the negative electrode side is the same needle electrode 1 and the positive electrode side is a mesh electrode 3 as shown in the figure, so that the ion wind can be generated efficiently and at the same time the generated ion wind is smooth. It is the structure which enabled it to blow out to the front.
That is, since the corona discharge generated in the mesh electrode 3 is generated in the entire mesh, the discharge amount is determined by the number of meshes.
Here, Table 1 shows the results of a comparative experiment of ion wind (blowing amount) between the positive electrode using the conventional cylindrical electrode 2 and the net electrode 3 of the present invention.

That is, as an experimental example, in a 20 mm square space, the net of the present invention and the conventional cylinder are used as the positive electrode, and the amount of generated ion wind is measured and compared.
The reason for this space being 20 mm square is that in the cylindrical electrode, the pair of corona discharges is a dimension that stabilizes at an optimum voltage.
The positional relationship between the negative needle electrode 1 and the positive mesh electrode 3 was such that the needle electrode 1 was placed at the center of the grid of the mesh electrode 3 and a uniform discharge was performed. Accordingly, the discharge part of the mesh of the mesh is 9 faces (in the case of the embodiment of FIG. 2).
The measuring instrument was measured using a commercially available air ion counter KEC-990 type manufactured by Kyoritsu Electronics Co., Ltd.
It can be understood that the portion to be discharged generates about twice the amount of ions in the case of the mesh electrode 3 of the present invention and the case of the cylindrical electrode 1 of the conventional example.

As described above, it is considered that the superiority of the mesh electrode 3 has been proved.
In addition, the voltage and current may be those that are normally used as those capable of corona discharge, and most of the types of power sources are direct current, pulsating current, alternating current, and the like.
Further, as the shape of the mesh electrode 3, the dimensions of the stitches are arbitrary and can meet the requirements for the generation of air flow of the ion wind, and the mesh shape can be any shape such as a flat knitted shape, a spherical shape, a dome shape, and the like.
The shape of the plus needle electrode can be a sharp shape such as a conical shape or a polygonal pyramid, and the size can also be an arbitrary shape depending on the requirements for airflow generation.
Further, the number of needle-like electrodes 1 can be arbitrarily determined according to the requirements.
The material of the mesh electrode 3 and the needle electrode 1 can be almost any material that can be energized, such as platinum, gold, silver, titanium, stainless steel, carbon fiber, conductive plastic, etc. Further, various materials coated with conductive paint are conceivable.
Here, referring to the relationship between the ion wind and the positive electrode, the intensity of the ion wind is proportional to the intensity of the corona discharge. The amount of ion wind generated by corona discharge is proportional to the size of the surface electrode within a certain range. The flow of corona wind by corona discharge is characterized in that the larger the opening surface of the surface electrode, the smaller the air resistance and the easier the flow.
As a result of the experiment, 1 to 8 meshes of the mesh of the mesh electrode 3 has a good ion generation function. Of these, 3 mesh was found to be optimal for one-way corona discharge.

Next, specific examples of FIGS. 5 and 6 will be briefly described.
The case 4 is provided with a plurality of rows (two rows in the figure) as shown in the figure with the needle-like electrode 1 on the minus electrode that enables corona discharge and the metal mesh electrode 3 on the plus (case ground) as shown in the figure. The cross 5 is provided so as to form a slit portion for reinforcement so as to support one mesh electrode 3 provided on the front side of this and for safety so that children and the like do not touch the mesh electrode 3. The edge of the crosspiece 5 is chamfered with an arc.
The portion where the slit portion is formed is the blowout port 6.
In addition, what is shown in FIG. 7 is a fan-shaped ion wind outlet, and the other configurations are the same as those described above.

  It can also be used in deodorizing devices, deodorizing devices, ozone generators, air purifiers, and the like.

DESCRIPTION OF SYMBOLS 1 .... acicular electrode 2 ... cylindrical electrode 3 ... mesh electrode 4 ... case 5 ... crosspiece 6 ... outlet

Claims (2)

  An ion outlet is provided on the front surface of the case, and a mesh electrode for forming a positive electrode is provided adjacent to the outlet so that an ion wind flows through the ion outlet, and is opposed to a substantially central axis of the mesh electrode. An ion generator, characterized in that an opposing discharge electrode is provided so that the tip of a needle electrode of a negative electrode is positioned, and a discharge airflow generated by applying a high voltage to the counter electrode is used.   The ion generator according to claim 1, wherein the mesh number of the mesh electrode is 1 to 8 mesh.

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