JP2008112714A - Ion wind generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ion wind generator capable of providing a sufficient air volume, with generating little ozone. <P>SOLUTION: This ion wind generator generates ion wind by generating corona discharge between a discharge electrode 1 and a counter electrode 2, the counter electrode 2 is composed of a porous conductive member, and the discharge electrode 1 is composed of a large number of bundled carbon fibers 6. Thereby, the generator generates little ozone, and provides ion wind having a wind velocity providing a sufficient air volume feeling. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an ion wind generator that generates ions such as negative ions and discharges them as ion wind into indoor air while suppressing the generation of ozone.

Conventionally, an ion wind generator that generates positive ions and negative ions and discharges them into the room as an ion wind has been proposed. In such an ion wind generator, an ionization electrode and a counter electrode are opposed to each other, a high voltage is applied between both electrodes, and an ion wind is generated by corona discharge (for example, Patent Document 1 below).
Japanese Patent Laid-Open No. 10-43628

  In the conventional ion wind generator described above, corona discharge may generate ozone that causes oxidation and irritating odors in the surrounding area, which may adversely affect the surrounding environment. In order to prevent such an adverse effect due to ozone, conventionally, techniques such as suppressing the applied voltage, adsorbing ozone generated by an activated carbon filter, or decomposing ozone by an ozone decomposition catalyst have been taken.

  However, the method of keeping the applied voltage low has a problem that it is not possible to obtain a wind speed that gives a feeling of air volume. Further, the adsorption by the filter has a problem that the wind speed is lowered due to pressure loss, and the filter has to be replaced periodically, resulting in an increase in running cost. On the other hand, even in the method of decomposing ozone with a catalyst, a honeycomb-structured catalyst must be installed in order to prevent the wind speed from dropping, and there remains a problem that the apparatus itself is upsized and does not look good. Moreover, if the honeycomb-structured catalyst is covered with dust or oil due to long-term use, the chance of contact between the ion wind and the catalyst is reduced, ozone cannot be fully decomposed, and long-term reliability is lacking. There's a problem. In this way, the method of decomposing with a catalyst or adsorbing with a filter does not stop the generation of ozone itself, but removes the generated ozone afterwards. The situation is not reached.

  This invention is made | formed in view of the above situations, and it aims at providing the ion wind generator which can obtain sufficient air volume, generating little ozone.

  In order to achieve the above object, an ion wind generator of the present invention is an ion wind generator that generates a corona discharge between a discharge electrode and a counter electrode to generate an ion wind, and the counter electrode is a porous conductive material. The gist of the invention is that the discharge electrode is composed of a number of carbon fibers.

  That is, in the ion wind generator of the present invention, the counter electrode is composed of a porous conductive member, and the discharge electrode is composed of a large number of carbon fibers, so that the wind speed can be sufficiently felt without generating ozone. Ion wind is obtained. By generating corona discharge between the fibrous discharge electrode and the counter electrode of the porous conductive member, it can be considered that ozone is prevented from being generated as a dispersed discharge by minute electric power. And there is no pressure loss like a filter, and there is no fear that long-term reliability like a catalyst will fall. Moreover, since it is not necessary to provide a member for removing ozone other than the discharge electrode and the counter electrode, the apparatus itself becomes compact. In addition, unlike conventional metal acicular discharge electrodes, the metal itself does not deteriorate, and ion wind can be generated stably over a long period of time, which is significantly superior in terms of reliability and life. It will be a thing. Furthermore, the air cleaning effect by adsorbing the floating dust in the air to the counter electrode made of the porous conductive member can be exhibited.

  In the present invention, when the counter electrode is made of a porous metal, pores are exposed on the electrode surface, and discharge occurs at thin wall portions between the pores. Ozone generation is prevented.

  In the present invention, when the material of the counter electrode is a nickel-based metal, since the counter electrode is extremely less deteriorated by discharge, an ion wind can be generated while stably preventing the generation of ozone over a long period of time. Can be greatly improved in terms of reliability and life.

  Next, the best mode for carrying out the present invention will be described.

  FIG. 1 is a diagram showing an embodiment in which an ion wind generator of the present invention is applied to a negative ion generator.

  This negative ion generator generates corona discharge between the discharge electrode 1 and the counter electrode 2 to generate an ion wind. In this example, the counter electrode 2 is configured by using two rectangular plate-like electrode plates 2a as a set, and arranging the two electrode plates 2a in parallel at a predetermined interval. The discharge electrode 1 is formed in an elongated state extending in the width direction of the counter electrode 2. The discharge electrode 1 is disposed at a position slightly apart from the counter electrode 2 on one end side of the counter electrode 2 so as to be along the counter electrode 2 at a substantially central height of the two electrode plates 2a.

  The counter electrode 2 is composed of a porous conductive member. As the porous conductive member, for example, a porous metal such as a sintered metal or a metal foam can be used. In addition, as the porous conductive member, carbon fiber cloth, carbon fiber nonwoven fabric, metal fiber cloth, metal fiber nonwoven fabric, synthetic fiber cloth / nonwoven fabric, conductive cloth / conductive nonwoven fabric, etc., which has been subjected to metal plating can also be used. . Of these, the counter electrode 2 is preferably formed of a metal foam.

  The metal foam forms, for example, a cellular structure in a softened metal matrix by using the pressure of the decomposition gas of the foaming agent by heating the compacted metal powder compacted body by uniformly dispersing the foaming agent. Is a porous metal having a cell structure in which a large number of bubbles are dispersed. The metal foam that can be applied to the present invention is not limited to the one obtained by the above-described manufacturing method as long as it is a porous metal having a cell structure in which many bubbles are dispersed.

  As for the porosity in porous metals, such as the said metal foam, about 50-85 volume% is suitable. This is because if the porosity exceeds 85% by volume, the strength is insufficient and the degree of deterioration of the counter electrode 2 due to discharge may become severe. On the other hand, if it is less than 50% by volume, a sufficient dispersion discharge effect cannot be obtained at the time of corona discharge, and ozone may be generated. In addition, the effect of adsorbing minute dust in the air is poor, and an air cleaning effect is not obtained so much. This is because the catalyst cannot be supported much.

  The pore size of the porous metal such as the metal foam is preferably about 50 μm to 1 mm in average diameter. This is because if the pore size exceeds 1 mm, the strength is insufficient, and the degree of deterioration of the counter electrode 2 due to discharge may become severe. In addition, the effect of adsorbing minute dust in the air is poor, the air cleaning effect is not obtained so much, and the catalyst cannot be supported much. On the other hand, when the thickness is less than 50 μm, clogging due to adsorption is fast, and a sufficient dispersion discharge effect cannot be obtained during corona discharge, which may generate ozone.

  The material of the porous metal constituting the counter electrode 2 is preferably formed from nickel-based metal such as pure nickel or nickel-based alloy. Examples of nickel-based alloys include Ni-Cu alloys (including Ni-Cu-Al alloys and Ni-Cu-Si alloys), Ni-Al alloys, and Ni-Fe alloys (Ni-Fe-Mo alloys). Etc.), nickel-base heat-resistant alloys such as Ni-Cr alloys (including Ni-Cr-Fe alloys, Ni-Cr-Mo alloys, etc.) and nickel-base corrosion-resistant alloys can be used. Among these, inconel, which is a Ni—Cr—Fe alloy, can be particularly preferably used.

  Further, as the material of the porous metal constituting the counter electrode 2, in addition to the above nickel-based metals, pure aluminum, Al-Si alloy, Al-Mg alloy, Al-Cu-Mg alloy, Al- Cu-Mg-Ni alloy, Al-Cu-Si alloy, Al-Si-Mg alloy, Al-Si-Cu alloy, Al-Si-Mg-Cu alloy, Al-Si-Mg-Ni alloy It is also possible to use aluminum metals such as various aluminum-based alloys such as alloys, Al-Mn alloys, Al-Si-Cu-Mg alloys, Al-Mg-Si alloys, and Al-Zn-Mg-Si alloys. it can.

  Further, as the material of the porous metal constituting the counter electrode 2, in addition to the nickel-based metal and the aluminum-based metal, industrial pure titanium, various α-type titanium alloys, various Near α-type titanium alloys, various α + β It is also possible to use titanium-based metals such as various titanium-based alloys such as type titanium alloys and various β-type titanium alloys.

  Further, the discharge electrode 1 is formed of a large number of carbon fibers 6 cut to a predetermined length, one end side of each carbon fiber 6 is bundled by a binding member 7, and the metal plate extends along the counter electrode 2 by a width dimension. A plurality of carbon fibers 6 are attached to 11 at predetermined equal intervals so that the front ends of the carbon fibers 6 face the counter electrode 2 side.

  In this example, a large number of carbon fibers 6 are bundled, and an insulating rubber member 8 formed in an annular shape is wound, and the outside thereof is caulked with a metal ring 9 to be bound, and the base portion is made of a metal terminal. The member 10 is wound and configured, and the bundling member 7 is configured by the rubber member 8, the metal ring 9, and the terminal member 10. The bundled carbon fibers 6 have their ends cut in a direction perpendicular to the longitudinal direction along the air flow to be generated. An ion wind is generated by corona discharge from the free ends of the bundled carbon fibers 6.

  By applying a negative potential to the discharge electrode 1 configured as described above, a corona discharge can be generated from the tip of each carbon fiber 6, and an ionic wind having a strong wind force can be generated with a weaker electric power. In addition, since corona discharge is generated with weak electric power, the amount of ozone generated is drastically reduced.

  The carbon fiber 6 used for the discharge electrode 1 is a PAN-based carbon fiber made by carbonizing acrylic fiber at a high temperature, a rayon-based carbon fiber obtained by heating and carbonizing rayon, and a lignin PVA made from lignin, which is a waste material of pulp. Various carbon fibers can be used, such as PITCH-based carbon fibers made from pitch-based carbon fibers and pitches, which are by-products such as petroleum, coal, coal tar, and the like.

  The fiber outer diameter of the carbon fiber 6 used for the discharge electrode 1 is preferably about 0.6 to 30 μm. If the thickness is less than 0.6 μm, the strength is insufficient, and the degree of deterioration of the fiber itself due to discharge may be severe. Since the discharge dispersion voltage maintains the relationship of Vo / np based on the number of fibers np and the discharge electrode applied voltage Vo, it is better to reduce the fiber outer diameter and increase the number of fibers np. On the contrary, when the voltage exceeds 30 μm, the dispersion discharge effect cannot be sufficiently obtained during corona discharge, and ozone may be generated.

  The discharge electrode 1 and the counter electrode 2 are held in an insulating holding member (not shown) in the case 3 and arranged in the positional relationship as described above. The case 3 is provided with an air inlet 4 on one side and an ion wind outlet 5 on the other side, the discharge electrode 1 is disposed on the air inlet 4 side, and the counter electrode 2 is provided on the ion wind outlet 5 side. Place. In other words, the discharge electrode 1 is arranged on the upstream side of the generated ion wind, and the counter electrode 2 is arranged on the downstream side along the flow of the ion wind.

  In this state, when a negative potential is applied to the discharge electrode 1 and a positive potential is applied to the counter electrode, corona discharge occurs at the tip of the discharge electrode 1, and electrons move from the tip of the discharge electrode 1 toward the inner surface of the counter electrode 2. Released. The emitted electron flow collides with gas molecules while being accelerated by a high electric field, gives kinetic energy to the gas molecules, and generates air currents as electron-induced wind of air. At this time, some of the electrons are trapped in the outer shell of the gas molecule bond activation and become negatively charged negative ion molecules. Therefore, the electron induction wind becomes an air flow of an ion wind containing negative ion molecules.

  In this way, the ion wind generated by applying a direct current potential to the discharge electrode 1 and the counter electrode 2 becomes an air current blown from the discharge electrode 1 through the counter electrode 2, and includes ions containing negative ion molecules. Wind is discharged from the ion wind outlet 5 into the room, and outside air is taken in from the air intake 4.

  As described above, according to the negative ion generator of the present embodiment, the counter electrode 2 is composed of a porous conductive member, and the discharge electrode 1 is composed of a large number of carbon fibers 6 that are bundled. Without generating it, an ionic wind with a wind speed that gives a sufficient feeling of air volume can be obtained. By generating corona discharge between the fibrous discharge electrode 1 and the counter electrode 2 of the porous conductive member, it can be considered that ozone is prevented from being generated as a dispersed discharge by minute electric power. And there is no pressure loss like a filter, and there is no fear that long-term reliability like a catalyst will fall. Further, since it is not necessary to provide a member for removing ozone other than the discharge electrode 1 and the counter electrode 2, the apparatus itself becomes compact. In addition, unlike conventional metal acicular discharge electrodes, the metal itself does not deteriorate, and ion wind can be generated stably over a long period of time, which is significantly superior in terms of reliability and life. It will be a thing. Furthermore, the air cleaning effect by adsorbing the floating dust in the air to the counter electrode 2 made of the porous conductive member can be exhibited.

  In addition, since negative ion molecules are generated by the discharge electrode 1 and the counter electrode 2, mental stability and relaxation effect by negative ions can be obtained.

  In addition, since the counter electrode 2 is made of a porous metal, pores are exposed on the electrode surface, and discharge occurs at the thin wall portions between the pores, so that ozone is generated as a dispersive discharge by minute electric power. Is prevented.

  Moreover, since the counter electrode 2 is formed of a nickel-based alloy, the counter electrode 2 is hardly deteriorated by discharge, so that ion wind can be generated while stably preventing the generation of ozone over a long period of time. It will be much better in terms of reliability and life.

  FIG. 2 shows a second embodiment of the present invention.

  In this example, the discharge electrode 1 is configured by bundling a large number of carbon fibers 6. That is, the long carbon fiber 6 is cut according to the width dimension of the counter electrode 2 and bundled by winding the binding member 7 serving as a terminal member around both ends. And the discharge electrode 1 is arrange | positioned so that the longitudinal direction of the carbon fiber 6 may follow the width direction of the counter electrode 2. FIG. Other than that, it is the same as that of the said 1st Embodiment, and attaches | subjects the same code | symbol to the same part. And there exists an effect similar to the said 1st Embodiment.

  FIG. 3 shows a third embodiment of the present invention.

  In this example, the counter electrode 2 is not arranged with the flat electrode plate 2a facing each other, but is formed in a cylindrical shape, and the discharge electrode 1 is arranged at the center on the cylinder. This discharge electrode is the same as that shown in FIG. 2 (C), and is bundled, the roots are tied together, and the tips are trimmed. The tips are arranged with the tip facing the counter electrode 2 side.

  In this example, the cylindrical counter electrode 2 is not limited to a cylindrical shape, and may be a square cylindrical shape, or the downstream side of the ion wind may be formed to be widened, or conversely formed to be tapered. You can also

  By applying a negative potential to the discharge electrode 1 configured as described above, a corona discharge can be generated from the tip of each carbon fiber 6, and an ionic wind having a strong wind force can be generated with a weaker electric power. In addition, since corona discharge is generated with weak electric power, the amount of ozone generated is drastically reduced. Other than that, it is the same as that of the said 1st and 2nd embodiment, and attaches | subjects the same code | symbol to the same part. In this embodiment, the same effects as those in the first and second embodiments are obtained.

  FIG. 4 shows a fourth embodiment of the present invention.

  FIG. 4A shows an example in which a plurality of units (five sets in this example) of the cylindrical counter electrode 2 shown in FIG. 3 and the discharge electrode 1 arranged so that the head faces the center thereof are arranged in parallel. Indicates. By doing so, an ionic wind having a large air volume can be obtained.

  In FIG. 4B, a cylindrical first counter electrode 2b and a second counter electrode 2c are arranged in series with a predetermined gap 20 between them, and one discharge electrode 1 is arranged on the first counter electrode 2b side. It is what. By doing in this way, the clearance 20 between the 1st counter electrode 2b and the 2nd counter electrode 2c functions as an air intake, and air can be taken in, and ion wind with a larger air volume can be obtained.

  FIG. 4 (C) shows an example in which a plurality of units (two in this example) of the cylindrical counter electrode 2 shown in FIG. 3 and the discharge electrode 1 arranged so that the head faces the center thereof are arranged in series. Indicates. By doing so, ion winds are generated in the rear unit and the front unit, respectively, and the ion wind generated in the rear unit flows into the front unit to accelerate the ion wind, and the ion wind with a larger air volume is generated. Can be generated.

  4D includes a plurality of units (seven sets in this example) of the cylindrical counter electrode 2 shown in FIG. 3 and the discharge electrode 1 arranged so that the head faces the center thereof, and one unit is provided. An example in which six units are arranged so as to surround them as a center is shown. By doing so, an ionic wind having a larger air volume can be obtained.

  Other than that is the same as that of the said 1st-3rd embodiment, and attaches | subjects the same code | symbol to the same part. Also in this embodiment, the same effects as those in the first to third embodiments are obtained.

  FIG. 5 shows a fifth embodiment of the present invention.

  In this example, a plurality of units (six sets in this example) of the cylindrical counter electrode 2 shown in FIG. 3 and the discharge electrode 1 arranged so that the head faces the center thereof, each discharge electrode 1 has a central portion. An example in which the tips are arranged so that their tips are directed radially is shown. By doing in this way, ion wind can be sent to all directions, for example, negative ions can be sent evenly throughout the living room. Other than that is the same as that of the said 1st-4th embodiment, and attaches | subjects the same code | symbol to the same part. And this embodiment has the same operation effect as the above-mentioned 1st-4th embodiment.

  FIG. 6 shows a sixth embodiment of the present invention.

  In this example, a counter electrode 2 formed of a cylindrical metal foam member 13 and a discharge electrode unit 1c including a plurality of discharge electrodes 1a and 1b are provided. The discharge electrode unit 1c includes a center electrode 1a arranged so that the tip is directed toward the center of the counter electrode 2, and peripheral electrodes 1b arranged at equal intervals on a virtual circle surrounding the center electrode 1a. It is configured. The tip of the center electrode 1a is set to protrude toward the counter electrode 2 rather than the tip of the peripheral electrode 1b, and the distance between the tip of each peripheral electrode 1b and the counter electrode 2 is set to be equal. Yes.

  Thus, by arranging a plurality of discharge electrodes 1a and 1b with respect to one counter electrode 2 and performing corona discharge, the amount of negative ions generated can be increased and an ion wind with stronger wind power can be generated. it can. In addition, since there is no difference in the distance between the center electrode 1a and the peripheral electrode 1b from the inner peripheral surface of the counter electrode 2, there is less variation in the discharge state between the plurality of discharge electrodes 1a and 1b, and stable discharge is achieved. As a result, the amount of negative ions generated is stabilized and the amount of ion wind is also stabilized. Other than that is the same as that of the said 1st-5th embodiment, and attaches | subjects the same code | symbol to the same part. In this embodiment, the same effects as those of the first to fifth embodiments are obtained.

  FIG. 7 shows a seventh embodiment of the present invention.

  In this example, the counter electrode 2 is formed in a double structure constituted by a cylindrical inner electrode 15 and an outer electrode 16 disposed concentrically outside the inner electrode 15. The plurality of discharge electrodes 1 are arranged such that the tips are directed to the gaps between the inner electrode 15 and the outer electrode 16. Each discharge electrode 1 is arranged at equal intervals on a virtual circle concentric with the inner electrode 15 and the outer electrode.

  As described above, by arranging the plurality of discharge electrodes 1 in the doughnut-shaped gap between the inner electrode 15 and the outer electrode 16 to cause corona discharge, the amount of negative ions generated is increased and the wind power is stronger. An ionic wind can be generated. In addition, since there is no difference in the distance between the discharge electrodes 1 and the peripheral surface of the counter electrode 2, the discharge state varies among the discharge electrodes 1 and stable discharge is performed, and the amount of negative ions generated is also reduced. In addition to being stable, the volume of ion wind is also stable. Further, since the ion wind is generated in the donut-shaped space formed between the inner electrode 15 and the outer electrode 16, the directivity of the ion wind is increased, and the ion wind that flows straight can be generated. Other than that is the same as that of the said 1st-6th embodiment, and attaches | subjects the same code | symbol to the same part. Also in this embodiment, the same effects as those in the first to sixth embodiments are obtained.

  FIG. 8 shows an eighth embodiment of the present invention.

  In this example, the counter electrode 2 in which four rectangular cylindrical portions 17 are formed is formed by combining metal foam plates, and the four discharge electrodes 1 are arranged corresponding to the respective rectangular cylindrical portions 17. Other than that is the same as that of the said 1st-7th embodiment, and attaches | subjects the same code | symbol to the same part. In this embodiment, the same effects as those of the first to seventh embodiments are obtained.

  FIG. 9 shows a ninth embodiment of the present invention.

  In this example, a plurality of openings 22 are formed in two metal foam plates facing each other at a predetermined interval to form a counter electrode 2, and a plurality (three in this example) of discharge electrodes 1 are arranged in parallel. Is arranged. By doing in this way, the said opening part 22 functions as an air intake, and when an air is taken in, ion wind with a larger air volume can be obtained. Other than that is the same as that of the said 1st-8th embodiment, and attaches | subjects the same code | symbol to the same part. In this embodiment, the same effects as those in the first to eighth embodiments are obtained.

  FIG. 10 shows a tenth embodiment of the present invention.

  In this example, the counter electrode 2 is composed of two metal foam plates facing each other at a predetermined interval, and the rod-shaped discharge electrode 1 is disposed along the width direction of the counter electrode 2. The discharge electrode 1 is obtained by implanting short carbon fibers on a metal rod, and a large number of carbon fibers are radially implanted on the surface. In the discharge electrode 1, corona discharge is generated from the tip of the carbon fiber present at the portion facing the counter electrode 2. When the carbon fiber on the counter electrode 2 side is consumed after being used to some extent, the discharge electrode 1 is rotated one-third to half-turn so that the portion where the carbon fiber is not consumed is directed toward the counter electrode 2 and continues to be used. can do. Other than that is the same as that of the said 1st-9th embodiment, and attaches | subjects the same code | symbol to the same part. And this embodiment also has the same operation effect as the above-mentioned 1st-9th embodiment.

  FIG. 11 shows an eleventh embodiment of the present invention.

  In this example, the counter electrode 2 is formed by arranging a pair of long metal foam strips provided with a feeding roll 25 on one end side and a take-up roll 26 on the other end side at a predetermined interval. Further, the discharge electrode 1 is configured by implanting carbon fiber in a long conductive noncombustible film strip, and providing a feeding roll 25 on one end side and a winding roll 26 on the other end side. When the carbon fiber of the discharge electrode 1 has been consumed after being used to some extent, it can be wound up by that amount, and a new portion can be taken out and used continuously. In addition, when dust or the like adheres to the counter electrode 2 and gets dirty after being used to some extent, it can be wound up by that amount, and a new part can be taken out and used continuously. Other than that is the same as that of the said 1st-10th embodiment, and attaches | subjects the same code | symbol to the same part. Also in this embodiment, the same effects as those in the first to tenth embodiments are achieved.

  The present invention is not limited to the above-described embodiments, but includes the following modifications.

  In each of the above embodiments, only an ion wind containing negative ions is shown, but a liquid agent transpiration unit that evaporates a liquid agent such as a fragrance or a deodorant on the upstream side or downstream side of the generated ion wind. The active ingredient of the liquid agent may be diffused into the room together with the ionic wind.

  In this case, the active ingredient of the liquid agent may be spontaneously evaporated, or it may be forcibly atomized using an ultrasonic atomizer to positively evaporate the active ingredient, or the liquid agent may be heated by a heating device or the like. The active ingredient can be actively evaporated by heating. As said liquid agent, it is not limited to a fragrance | flavor or a deodorizer, For example, various things, such as an insecticide, an insecticide, a repellent, a disinfectant, are applicable.

  Moreover, in each said embodiment, the movable production | generation member which produces the visual effect by moving with the wind force of the produced | generated ion wind can also be provided in the downstream of an ion wind. As the movable production member, for example, a propeller that rotates in an ionic wind, an optical fiber-like one that has an LED at its root, a wind chimney, a doll, etc., can obtain a visual production effect by moving in response to an ionic wind. Various things can be applied if there are. By doing so, not only negative ions are generated, but also a visually interesting presentation effect can be obtained.

  Further, in each of the above embodiments, the negative ion molecules are generated by the discharge electrode 1 that generates the ion wind with the tip facing the counter electrode 2 side, but in addition to this, it does not contribute to the generation of the ion wind. Alternatively, negative ion generation electrodes that generate only negative ion molecules may be provided side by side.

  Moreover, in the said embodiment, although the example which provided only one set of the said discharge electrode 1 and the counter electrode 2 was shown, two-stage discharge is arrange | positioned in series along the flow direction of an ion wind. An ion wind is generated from each of the electrode 1 and the counter electrode 2, and the ion wind generated at the first-stage discharge electrode 1 and the counter electrode 2 is further accelerated by electrons emitted from the second-stage discharge electrode 1, You may make it generate a more powerful ionic wind.

  Furthermore, by arranging a plurality of sets of the discharge electrode 1 and the counter electrode 2 in parallel with respect to the flow direction of the ion wind, the ion wind is generated from the plurality of sets of the discharge electrode 1 and the counter electrode 2 arranged in parallel. Therefore, more negative ions may be generated and an ion wind having a strong torque may be generated. In this embodiment, a plurality of sets of discharge electrodes 1 and counter electrodes 2 arranged in parallel can be further arranged in series along the direction along the flow of the ion wind.

  Moreover, in each said embodiment, although the exterior was made into the cylindrical case 3, the exterior is not limited to a cylindrical thing, The thing of various external appearance shapes can be applied.

It is a figure which shows the ion wind generator of one Embodiment of this invention, (A) is a perspective view which shows a discharge electrode and a counter electrode, (B) is sectional drawing, (C) is an enlarged view which shows the principal part of a discharge electrode. FIG. It is a figure which shows the ion wind generator of 2nd Embodiment of this invention, (A) is a perspective view which shows a discharge electrode and a counter electrode, (B) is sectional drawing. It is a perspective view which shows the ion wind generator of 3rd Embodiment of this invention. It is a perspective view which shows the ion wind generator of 4th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 5th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 6th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 7th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 8th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 9th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 10th Embodiment of this invention. It is a perspective view which shows the ion wind generator of 11th Embodiment of this invention.

Explanation of symbols

1: Discharge electrode 1a: Discharge electrode (center electrode)
1b: Discharge electrode (peripheral electrode)
DESCRIPTION OF SYMBOLS 1c: Discharge electrode unit 2: Counter electrode 2a: Electrode plate 2b: 1st counter electrode 2c: 2nd counter electrode 3: Case 4: Air intake 5: Ion wind outlet 6: Carbon fiber 7: Bundling member 8: Rubber member 9: Metal ring 10: Terminal member 11: Metal plate 15: Inner electrode 16: Outer electrode 17: Square tubular part 22: Opening part 25: Feeding roll 26: Winding roll

Claims (3)

  An ion wind generator that generates corona discharge between a discharge electrode and a counter electrode to generate an ion wind, wherein the counter electrode is composed of a porous conductive member, and the discharge electrode is composed of a number of carbon fibers. An ion wind generator characterized by that.   The ion wind generator according to claim 1, wherein the counter electrode is made of a porous metal.   The ion wind generator according to claim 1 or 2, wherein a material of the counter electrode is a nickel-based metal.

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