JPS6164355A - Ion wind generation apparatus - Google Patents

Abstract

PURPOSE:To prevent the generation of inverse corona and to reduce the generation of unpleasant sound or ozone, by arranging an air permeable insulating element and an air permeable conductive element in the windward of an ionization electrode. CONSTITUTION:An air permeable insulating element 26 such as a net formed by braiding an insulating wire made of a resin and an air permeable conductive element 27 forming a pair with said insulating element 26 and held to predetermined potential are mounted in the windward of an ionization electrode. By this arrangement, because coarse dust is adsorbed and collected by the air permeable insulating element and the air permeable conductive element, the generation of inverse corona is prevented and the generation of unpleasant sound or ozone is reduced and a washing cycle is extended to a large extent.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an ion blower for ion air purification used in homes, automobiles, clean rooms, etc.

Structure of the conventional example and its problems A conventional ion wind air cleaner has a structure as shown in FIG. That is, in FIG. 4, 1 is the ionization electrode, and 2 is the opposing collection ff! electrode, 3 is an accelerating electrode, 4 is an intake port, 5 is an air outlet, 6 is a case, 7.7' is a high voltage power supply,
8 is activated carbon. When a high voltage is applied between the ionization electrode 1 and the current collector 4fI2, a corona current flows from the ionization electrode 1 to the electrode 2. At this time, the ions collide with air molecules, causing the air to f! The dust is swept away to the electrode 2 side. This air flow is called ion wind. The ion wind can be utilized by concentrating the ion wind in a certain direction A as shown in FIG. On the other hand, dust in the air is charged by the ion current flowing between the ionization electrode 1 and the collecting glffi electrode 2. When this FJ electric dust flows between the accelerating electrode 3 where a high electric field is formed and the air collecting electrode 2, a Coulomb force acts on the dust due to the electric field and the charge on the dust, pushing the dust to the collecting n electrode 2111 and collecting it. be done. The air thus purified is sent out from the air outlet 5. Note that ozone generated around the ionizing electrode 1 is removed and purified by activated carbon 8 such as a honeycomb shape.

As can be seen from the principle of this ion wind system, when air resistance increases, the wind stops flowing. For this reason.

A pre-filter cannot be provided, and relatively coarse dust also flows into the ion blower. Since coarse dust is easily collected, it is collected in a concentrated manner at the tip of the counter dust collecting electrode 2 on the ionization electrode 1 side. A relatively large amount of this coarse dust is in the form of m-fibers, and it is electrostatically collected from the opposing bundles of dust particles in a radial manner.

Since a reverse corona etc. are generated from the tip, an unpleasant sound is generated, and the dust collection electrode 2 must be constantly cleaned in a short period of time due to the increase in ozone, making it difficult to put it into practical use.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and provides an ion blowing device that can significantly extend the cleaning cycle and operate stably for a long period of time.

Structure of the Invention In order to achieve the above object, the ion blowing device of the present invention includes an ionizing electrode and an opposing electrode disposed downstream of the ionizing electrode and facing the ionizing electrode. Ig￥1 sliding door, ionization electrode and opposing collection TI! 8′2I! A high-voltage power source that applies a high voltage between the electrodes, a breathable insulating element disposed upwind of the ionizing electrode, and a breathable conductive element paired with the breathable insulating element and held at a predetermined potential. The configuration is equipped with the following features.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on FIGS. 1 and 2. Note that substantially the same members in these figures are given the same reference numerals and redundant explanations will be omitted.

In FIG. 1, 21 is an ionization electrode, and 22 is a counter fJa provided downstream of and opposite to the ionization electrode 21.
The electrode 23 is an accelerating electrode disposed between each counter electrode 22, and a high voltage riWA 24 is provided between the ionization electrode 21 and the counter dust collection electrode 22 and between the ionization electrode 21 and the acceleration electrode 23.
．． A high voltage is applied by 24'. Opposing dust collection electrode 22
Activated carbon 25 for ozone removal is arranged on the leeward side. On the windward side of the ionization ff11421, a breathable insulating element 26 such as a net made of resin insulated wires braided vertically and horizontally is disposed perpendicular to the wind direction, and furthermore, the breathable insulating element 26 On the top, a breathable conductive element 27 such as a wire mesh made of metal wires braided vertically and horizontally is disposed at right angles to the wind direction. The breathable conductive element 27 is grounded in this embodiment. The above ionizing electrode 21, counter dust collecting electrode 22, accelerating electrode 23, activated carbon 25, breathable insulating element 26, and breathable conductive element 27 are all housed inside the case 28,
The case 28 has an air inlet 29 and an air outlet 30.

In the above configuration, when a high voltage is applied between the ionization electrode 21 and the counter dust collection electrode 22, the surface potential of the air-permeable insulating element 2G increases due to polarization and leakage of ionic current, and the air-permeable ITi element 2G, which is grounded, has a surface potential that increases due to polarization and leakage of ionic current. 21 to form an electric field. When coarse dust flows into this electric field portion, the dust becomes polarized and is attracted to the air-permeable insulating element 26 or the air-permeable conductive element 27 . The larger the dust, the greater the polarization and therefore the greater the suction force, and coarse dust will be collected in this area.

Therefore, the dust that reaches the ionic specific gravity Fj21 is only fine dust, but it is fine aII! Since dust is difficult to collect, the dust is not collected intensively at the tip of the opposing dust collection electrode 22, and there is almost no dust that stands up in the Q'J shape, which significantly shortens the time when reverse corona occurs. It can be moved. Therefore, the cleaning period can be significantly extended, making it possible to put ion wind generation to practical use.

In the embodiment shown in FIG. 1, silk with horizontally braided insulated wires was used as the breathable insulating element 2G, and a wire mesh with metal wires braided horizontally and vertically was used as the breathable conductive element 27. If available, a honeycomb-shaped material, a perforated plate, etc. can be used in the same manner.

In another embodiment shown in FIG. 2, a breathable insulating element 26' consisting of vertical and horizontal insulated wires made of insulated metal wires (which by itself forms a large mesh) and vertical and horizontal metal wires are used. The conductive element 27' (which alone is a large mesh) is integrated into a single mesh by braiding insulated wire and metal wire. Breathable conductive element 27
′ is grounded.

In the case of this configuration, the same effects as those in FIG. 1 can be obtained regarding collection of coarse dust, but there is an additional effect that the apparatus can be miniaturized and removal can be made easily.

Note that in either of the embodiments shown in FIGS. 1 and 2, the breathable conductive elements 27 and 27' are at ground potential.
The desired effect can be achieved as long as the potential is maintained at a constant level. However, using the ground potential in this manner is more advantageous because it does not require a separate power source. In addition, as in the embodiment shown in FIG.
Position upwind of G:・77 Electric shock can be prevented by shaking.

As described in detail of the invention, Book 5 is used in Ming's ion wind system 7r,
Since a breathable insulating element and a breathable conductive element maintained at a predetermined potential are placed upwind of the ionizing electrode, coarse dust is attracted and collected by the breathable insulating element or the breathable electrocardiographic element. It prevents the occurrence of reverse colonization, reduces unpleasant noise and ozone generation, and significantly extends the cleaning cycle.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an ion blower according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of an ion blower according to another embodiment of the present invention, and FIG. 3 is a cross-sectional view of a conventional ion blower. ! FIG. 1 is a sectional view showing the device. 21...-Ionization electrode, 22... Opposing collection electrode, 2
4゜24'...High voltage power supply, 26.26'...Breathable insulating element, 27.27'...Breathable conductive element Agent Yoshihiro Morimoto Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. An ionization electrode, a counter dust collection electrode disposed opposite to the ionization electrode on the downwind side thereof, and a high voltage power supply that applies a high voltage between the ionization electrode and the counter dust collection electrode. An ion blast device comprising: a breathable insulating element disposed upwind of an ionizing electrode; and a breathable conductive element paired with the breathable insulating element and held at a predetermined potential. 2. The ion wind generator according to claim 1, wherein the breathable conductive element is disposed upwind of the breathable insulating element. 3. The ion wind generator according to claim 1, wherein the breathable conductive element and the breathable insulating element are disposed at right angles to the wind direction. 4. The breathable conductive element is composed of a metal wire, the breathable insulating element is composed of an insulated wire, and the metal wire and the insulated wire are braided into a single edge shape. The ion blower according to item 3. 5. The ion blast device according to claim 4, wherein the insulated wire is made of a metal wire coated with insulation. 6. The ion blast device according to any one of claims 1 to 5, wherein the breathable insulating element is grounded.