WO2016111212A1

WO2016111212A1 - Ion/ozone wind generating device and method

Info

Publication number: WO2016111212A1
Application number: PCT/JP2015/086427
Authority: WO
Inventors: 明夫片野
Original assignee: 株式会社片野工業
Priority date: 2015-01-06
Filing date: 2015-12-25
Publication date: 2016-07-14
Also published as: JP2016123769A; JP5778361B1; TW201634062A

Abstract

[Problem] To provide an ion wind generating device capable of delivering ions across a wide range and capable of delivering ion wind with reduced ozone concentration near an outlet without using a filter or the like. [Solution] An ion, ozone or ion wind generating device that comprises a pair of electrodes having a discharging electrode and a counter electrode, and is configured such that a potential difference is generated between the discharging electrode and the counter electrode and such that ions, ozone and ion wind are generated by corona discharge. The counter electrode has an opening that serves as an inlet, a narrow portion that has the smallest inner diameter of the counter electrode, a reduced-diameter portion wherein an inner diameter of the counter electrode is reduced from the side of the opening toward the narrow portion, and an inner space formed by the reduced-diameter portion and through which ion wind can pass. The diameter R_β of the opening and the diameter R_α of the narrow portion satisfy the equation R_β > R_α, and the discharge electrode may be opposite an inner wall surface of the counter electrode and the narrow portion.

Description

Ion / ozone wind generator and method

The present invention is an apparatus that generates an ion wind by corona discharge, and more specifically, an ion wind generator that generates an ion wind having a larger air volume. Further, in one aspect, the present invention relates to an apparatus and method for sterilizing / deodorizing an object such as dust, and in particular, corona discharge is performed in a space different from a space where the object is disposed, thereby generating ions and ozone. The present invention relates to an apparatus and a method for generating and sterilizing / deodorizing an ion / ozone wind to a space where an object is arranged. More specifically, the present invention relates to a highly airtight box, for example, a waste container such as garbage or diapers, a processing odor, a shoe or a boot of a garbage disposal machine, a box / toilet / toilet tank for storing, an airtight The present invention relates to an environmental device for sterilization and deodorization that is mounted on a highly-contained container with a refrigeration / refrigeration device, a vehicle with a refrigeration / refrigeration device, a refrigerator, an indoor / interior air conditioner, and the like.

Along with the aging society, demand for filth containers such as diapers is increasing in proportion to the population requiring nursing care. It is unsanitary. In addition, each household, restaurant, and the like also have a garbage storage box, but each time it is opened, it emits a bad odor due to the growth of various germs, which is a heavy burden on housewives and workers. Garbage disposal machines are also increasing along with the growth of biotechnology, but the bad smell emitted around the disposal machines is a serious problem during operation. In addition, overseas and domestic logistics such as refrigeration, refrigeration, and room temperature products are mainly transported by transport containers and trucks, and there are many marine containers with air conditioners, land containers, container-type trucks, etc. Residual odors in cargo and mold odors in air conditioners are problematic. Furthermore, odors are also a problem in air conditioners such as warehouses, refrigerators, rooms, and vehicles depending on the usage of stored materials.

Here, as a method for solving the above problem, a simple sterilization deodorant such as a spray type has been proposed. However, when used in a trash bin or a garbage storage box, the present situation is that a bad odor is emitted when the container is opened. In addition, when used in an air conditioner (for example, spraying or circulation sterilization method), the parts that cannot be cleaned inside the air conditioner, or if an odor or mold odor remains even after cleaning, the odor will be transferred to the next loaded cargo. It has become. Furthermore, as another solution technique, a method of sucking air from a space to be sterilized and deodorized and adsorbing or removing contaminants with a filter and an expensive malodor removing catalyst have been proposed. However, maintenance such as filter replacement is indispensable due to long-term use, and because the performance of the filter is not sufficient, if the satisfactory performance is not obtained or even if the performance is good, the large and expensive catalyst body, In addition, maintenance and management costs are often high.

In recent years, air cleaners and air conditioners that generate negative ions and ozone have become widespread for indoor air purification and refreshment. Many techniques have been proposed for deodorizing the target space using a negative ion / ozone generator that simultaneously generates negative ions and ozone having a deodorizing effect.

First, the negative ion / ozone generator according to Patent Document 1 is an apparatus that is assumed to be attached to the ceiling of a room, and is characterized in that the positive electrode is arranged below the negative electrode. According to this, a downward airflow containing negative ions and ozone can be generated without using a fan or a motor.

Next, the negative ion / ozone generator according to Patent Document 2 includes a negative electrode having a needle-like tip and a cylindrical ground electrode arranged concentrically in parallel to the negative electrode, and the negative electrode and the ground electrode are relatively disposed. The negative electrode or ozone is generated by adjusting the distance between the tip of the negative electrode and the end face of the ground electrode by applying a high voltage to the negative electrode.

Next, the negative ion / ozone generator according to Patent Document 3 is a device that generates ozone and negative ions by applying a DC high voltage between the needle electrode and the ground electrode to cause corona discharge at the tip of the needle electrode. is there.

Next, the negative ion / ozone generator according to Patent Document 4 has a positive electrode made of a metal plate provided with one or a plurality of holes having a raised portion around the periphery, and the tip of the negative electrode is the positive electrode. It is located in the vicinity of the hole. With this configuration, a sufficient air flow is generated by the discharge, so that it is possible to generate an air flow that diffuses the generated negative ions and ozone into the space without using a blower such as a fan or a pump. .

The inventions according to Patent Documents 1 to 4 describe that ions and ozone are generated and applied to an object. However, these techniques are used in a space to be sterilized or deodorized, for example, inside a trash can. It is assumed that it is arranged and discharged. For example, in a trash can, odorous organic matter may be decomposed by microorganisms to produce flammable gases such as methane gas. There is a risk that will occur.

Therefore, in order to remove such dangers, external discharge is performed outside the space where the object is placed to generate ions and ozone and introduce these products into the space where the object is placed. Development of a mold sterilization / deodorization apparatus has been studied (Patent Document 5).

Utility model registration No. 3100754 JP 2003-342005 A JP 2004-18348 A JP 2005-13831 A Utility model registration No. 3155540

However, in the inventions according to Patent Documents 1 to 5, although ions and ozone can be generated, it is difficult to configure the generated ions to spread throughout the room. More specifically, in these technologies, since the generated wind of the ion wind containing the generated ions and ozone is weak, in order to spread the ions and ozone throughout the room, a separate blower or the like Therefore, it is necessary to boost the ion wind. As a result, the ion wind can be boosted, but the ions contained in the ion wind are diluted. Furthermore, in these technologies, the ozone concentration may be high in the vicinity of the jet outlet, so that the articles near the device are unintentionally bleached by the ozone that is simultaneously generated when ion wind is generated in the device. There was a case where it was done. In such a case, as a means for reducing the ozone concentration, a method using a filter or the like has been proposed. However, there is a problem that the ion concentration in the ion wind is also reduced or that the filter needs to be replaced. there were.

The present invention is made from such a viewpoint, can deliver ions over a wide range, and can blow an ion wind with a low ozone concentration in the vicinity of the jet nozzle without using a filter or the like. The purpose is to provide a wind generator.

One aspect of the present invention is:
An electrode pair having a discharge electrode (for example, discharge electrode 120-4 in FIG. 1) and a counter electrode (for example, counter electrode 130-4 in FIG. 1) is provided, and between the discharge electrode and the counter electrode A device that generates a potential difference to generate ions, ozone, and ion wind by corona discharge, and can guide at least part of the introduced ions, ozone, and ion wind to the outside (for example, FIG. 1). Comprising a guide member 140-4)
The guide member includes an annular opening serving as an intake port (for example, an intake opening 142-4 in FIG. 1), and an annular narrow portion (for example, the jet port 141 in FIG. 1) in which the inner diameter of the guide member is minimized. -4), a reduced diameter portion (for example, a reduced diameter portion 140r-4 in FIG. 1) in which the inner diameter of the guide member decreases from the opening side toward the narrowed portion, and the reduced diameter portion. A cylindrical member having an internal space,
The counter electrode is an annular electrode;
Ion, ozone, or ion wind in which the ring diameter (outer ring diameter) R _{1 of} the counter electrode, the ring diameter R _{B of the} opening, and the ring diameter R _{A of the} constriction are R _B > R _A > R ₁ Generator.
Here, the discharge electrode may be a needle electrode.
Further, the needle axis of the discharge electrode, the ring axis of the opening, and the ring axis of the constricted part may substantially coincide.
Further, the guide member may not have a cylindrical side opening.
Further, the guide member may have a frustum shape or a trumpet shape.
In addition, the guide member further includes an enlarged diameter portion (for example, an enlarged diameter portion 140S-4 in FIG. E3) in which the inner diameter of the guide member increases from the narrowed portion toward a side different from the opening. It may be.
Furthermore, a diffusion member (for example, a splitter 145-4 in FIG. E4) that can diffuse the ion wind opposed to the ion wind ejected from the guide member may be further included.

Two aspects of the present invention are:
An electrode pair having a needle-like discharge electrode (for example, discharge electrode 120-5 in FIG. 3) and a counter electrode (for example, counter electrode 130-5 in FIG. 3), and the discharge electrode, the counter electrode, Is configured to generate ions, ozone and ionic wind by corona discharge by generating a potential difference between
The counter electrode includes an annular opening serving as an intake port (for example, an intake opening 130β-5 in FIG. 3) and an annular constriction portion (for example, the spout 130α in FIG. 3) having the smallest inner diameter of the counter electrode. -5), a reduced diameter portion (for example, reduced diameter portion 130r-5 in FIG. 3) in which the inner diameter of the counter electrode decreases from the opening side toward the narrowed portion, and the reduced diameter portion. A cylindrical shape having an internal space through which the ion wind can pass, and a frustum-shaped or trumpet-shaped structure,
The constriction is opened to allow the ion wind to pass through,
The diameter R _{β of the} opening and the diameter R _{α of the} constriction are R _β > R _α ,
The discharge electrode is inserted into the internal space without penetrating the surface on which the constriction exists, and is configured to be opposed to the inner wall surface of the counter electrode and the constriction. Generator.
Here, the needle axis of the discharge electrode and the cylinder axis of the counter electrode may substantially coincide.
Further, the counter electrode may not have an open cylindrical side.
Furthermore, the counter electrode may further include a diameter-enlarged portion in which the inner diameter of the counter electrode increases from the narrowed portion toward a side different from the opening.

Here, each term used in this specification is explained. The “sterilization / deodorization target” is not particularly limited as long as it propagates bacteria or emits a foul odor. For example, raw food such as fresh food, sewage such as manure and diapers, and stored water Specific examples are given. The “space in which the object to be sterilized / deodorized is arranged” is not particularly limited as long as the object to be sterilized / deodorized is arranged. For example, a highly airtight box, more specifically, garbage or Dirty containers such as diapers, highly airtight containers with refrigeration / refrigeration equipment, and vehicles with refrigeration / refrigeration equipment. “Annular” broadly indicates a closed curved surface composed of a straight line and / or a curve having an open center, and in particular, a polygon or circle (preferably a hexagon or more) of a triangle or more (including an ellipse) .) ・ Or, it is desirable to have a generally circular shape. “Vortex” means, for example, a polygon or circle (preferably hexagon or more) or a circle (including an ellipse) or a substantially circular shape that spirals toward the center. There is no particular limitation on the mode (for example, the number of windings, the winding width, or the presence or absence of an end point). The term “planar” means an electrode having a small thickness with respect to the total area in the ring electrode in such a manner that it can be generally regarded as a plane. More specifically, although not particularly limited, [thickness (mm)] / [total area in the ring (cm ² )] is preferably 1.5 or less, and is preferably 1 or less. It is more preferable that it is 0.8 or less. Although a lower limit is not specifically limited, For example, it is 0.0001. The strain (distortion with respect to the plane) may be up to about the thickness. More specifically, the main annular counter electrode described later preferably has a total area of 7 cm ² , a thickness of 7 mm or less, and a strain of 7 mm or less. A plane and another plane are “same plane” means that the distance between a plane and another plane is generally regarded as the same plane. For example, when a certain planar shape and another planar shape are viewed from the side, a certain planar shape and another planar shape are parallel to each other, and there are portions where the thicknesses overlap. `` The longest distance between the tip of the needle-like electrode and the main annular counter electrode '' is the distance between the tip of the needle-like electrode and the inner end of the ring of the main annular counter electrode and the closest part in the thickness direction, It means the longest distance. `` The shortest distance between the tip of the needle-like electrode and the sub-annular counter electrode '' is the distance between the tip of the needle-like electrode and the inner end of the ring of the sub-annular counter electrode and the closest part in the thickness direction, Means the shortest distance. “Main ion wind” means an ion wind emitted from the central opening of the main annular counter electrode. The “subionic wind” means an ionic wind emitted from the sub annular counter electrode. “Generating a potential difference between electrode pairs” can include, for example, a potential difference that occurs when a voltage is applied to the needle electrode and the counter electrode is grounded. In this case, the polarity of the needle electrode (anode , Cathode) is not particularly limited. Moreover, a member having a cylindrical shape indicates a state in which the member has an internal space and two or more openings are provided so that the internal space and the external space can conduct fluid. Therefore, the thickness of the wall surface constituting the cylinder, the axial length of the cylinder, and the like are not particularly limited (for example, a mode in which a through hole is provided in a part of a flat plate-like member may be included).

According to the present invention, it is possible to provide an ion wind generating device capable of delivering ions over a wide range and having a low ozone concentration in the vicinity of the jet nozzle.

FIG. 1 (a) is a conceptual cross-sectional view of an ion / ozone wind generator 100-4 according to one embodiment (fourth embodiment) of the present invention, and FIG. 1 (b) shows the device 100-4. It is a conceptual perspective view. FIG. 2A is an operation diagram relating to the ejection of ion wind of the ion / ozone wind generator 100-4 according to one embodiment (fourth embodiment) of the present invention, and FIG. It is an effect | action figure which concerns on ejection of the ion wind of the ion ozone wind generator which concerns on a technique. FIG. 3A is a conceptual cross-sectional view of an ion / ozone wind generator 100-5 according to the second embodiment (fifth embodiment) of the present invention, and FIG. It is a conceptual perspective view. FIG. 4 is an operation diagram relating to the ejection of ion wind of the ion / ozone wind generator 100-5 according to the second embodiment (fifth embodiment) of the present invention. FIG. A1 (a) is a conceptual front view of the counter electrode of the ion / ozone wind generating apparatus 100 according to the first embodiment, and FIG. A1 (b) is a conceptual side view of the apparatus 100. FIG. A2 (a) is a diagram showing the positional relationship between the ring-shaped electrode 131 and the tip portion P of the needle-shaped electrode 120 using a cross section of the ring-shaped electrode 131 located at the innermost part, and FIG. FIG. 4 is a diagram showing a positional relationship between a ring electrode 132 and a tip P. FIG. A3 is a schematic view of a plate-like counter electrode that can be used as the counter electrode of the ion / ozone wind generating apparatus 100 according to the first embodiment. FIG. B1 is a conceptual diagram of a counter electrode in another embodiment. FIG. E1 is a conceptual cross-sectional view of an ion / ozone wind generator 100-4 according to the fourth embodiment. FIG. E2 (a) is a conceptual cross-sectional view of an ion / ozone wind generating apparatus 100-4 according to the fourth embodiment, and FIG. E2 (b) is a conceptual perspective view of the apparatus. FIG. E3 (a) is a conceptual cross-sectional view of an ion / ozone wind generating apparatus 100-4 according to the fourth embodiment, and FIG. E3 (b) is a conceptual perspective view and operation diagram of the apparatus. FIG. E4 (a) is a conceptual cross-sectional view of an ion / ozone wind generating apparatus 100-4 according to the fourth embodiment, and FIG. E4 (b) is a conceptual perspective view of the apparatus. Fig. E5 (a) is a conceptual cross-sectional view of an ion / ozone wind generator 100-4 according to the fourth embodiment, and Fig. E5 (b) is a conceptual perspective view of the device. FIG. E6 (a) is a conceptual cross-sectional view of an ion / ozone wind generating apparatus 100-4 according to the fourth embodiment, and FIG. E6 (b) is a conceptual perspective view of the apparatus. FIG. E7 (a) and FIG. E7 (b) are conceptual perspective views of an ion / ozone wind generator 100-4 according to the fourth embodiment. FIG. F1 is a conceptual cross-sectional view of an ion / ozone wind generator 100-5 according to the fifth embodiment. FIGS. F2 (a) and F2 (b) are conceptual cross-sectional views of an ion / ozone wind generator 100-5 according to the fifth embodiment. FIG. F3 is a conceptual perspective view of an ion / ozone wind generator 100-5 according to the fifth embodiment.

Before explaining the details of the ion / ozone wind generator according to the present invention, referring to FIGS. 1 to 4, the ion / ozone wind generator according to the present invention (the fourth and fifth embodiments described later) will be described. The outline of such an ion / ozone wind generator will be described. Here, the present invention is not limited to these examples. For example, the embodiments and modifications given as examples in this specification should be understood as being applied to specific ones. Any combination may be used. For example, it should be understood that a modification example of an embodiment is a modification example of another embodiment, and even if one modification example and another modification example are described independently, there is the modification example. It should be understood that a combination of the modified example and another modified example is also described. Further, numerical values as specific examples shown in the embodiments and modified examples {for example, the diameter and length / thickness of the discharge electrode and the counter electrode, the voltage difference between the discharge electrode and the counter electrode, the discharge electrode and the counter electrode, which will be described later, It is to be understood that the separation distance, etc. is merely an example, and may be appropriately changed as long as it does not significantly depart from the spirit of each embodiment or modification.

First, an outline of an ion / ozone wind generator 100-4 according to one embodiment (fourth embodiment described later) of the present invention will be described with reference to FIG.

As shown in FIG. 1, an ion / ozone wind generator 100-4 according to this embodiment includes a needle-like discharge electrode 120-4 and an annular counter electrode 130-4, and a gap between these electrodes. A cylindrical ion wind guide member 140-4 (guide member 140-4) capable of introducing the generated ion wind is provided. More specifically, the guide member 140-4 has an outlet 141-4 (constriction 141-4) that is an opening through which ion wind is ejected (in this embodiment, the constriction that has the narrowest cross-sectional area in the member). Portion 141-4 is also the jet outlet 141-4), an intake opening 142-4 serving as an inlet having a larger diameter (ring diameter) than the jet outlet 141-4, and an intake opening 142-4 A diameter-reduced portion 140r-4 (inclined portion) that is reduced in diameter toward the ejection port 141-4. Thus, in this embodiment, the diameter (ring diameter) of the intake opening 142-4 is configured to be larger than the diameter (ring diameter) of the counter electrode 130-4 (for example, the guide member 140-4). The main feature is that, when viewed in the central axis direction, the counter electrode 130-4 can be visually recognized as a ring from the outlet 141-4. As a specific flow path of the ion wind, the ion wind generated by the counter electrode 130-4 passes through the internal space of the guide member 140-4 and goes from the intake opening 142-4 side to the jet outlet 141-4 side. And ejected from the ejection port 141-4 (the principle of ion wind generation will be described later). The jet outlet 141-4 (the constricted portion 141-4), the intake opening 142-4, and the like indicate each component (edge) in the guide member 140-4, but the component (edge). May also refer to the space formed by.

Next, the operation and effect of the ion / ozone wind generator 100-4 according to this embodiment will be described with reference to FIG.

As an ion / ozone wind generator having a conventional guide member, for example, as shown in FIG. 2 (b), {the counter electrode has a cross-sectional diameter that decreases linearly toward the spout side (cross-sectional diameter). A device provided with a truncated conical guide member 140 having a shape). Conventionally, the reason why such a truncated conical guide member is arranged is to increase the ion wind by concentrating the ion wind inside the guide member. At first glance, the ion / ozone wind generator 100-4 according to the present embodiment seems to be similar to such a conventional ion / ozone wind generator. However, the guide member 140-4 according to the present embodiment is created based on a concept different from that of the conventional guide member 140.

Specifically, as a result of experiments conducted by changing the shape of the guide member in various ways, the present inventor increases the shape of the outlet 141-4 of the guide member 140-4 (the diameter of the outlet 141-4). Is designed to be larger than the ring diameter of the counter electrode 130-4), as shown in FIG. 2 (a), the guide member functions (occurs) in the direction of diffusing rather than concentrating the ion wind. Ion wind diffused. Regarding the principle of the effect according to the present embodiment, the present inventor predicts as follows.

According to the ion / ozone wind generating apparatus 100-4 according to the present embodiment, the discharge electrode 120-4 and the counter electrode are arranged by making the ring diameter of the jet nozzle 141-4 larger than the ring diameter of the counter electrode 130-4. It is considered that the ion wind generated with respect to 130-4 is pushed forward to the vicinity of the jet outlet 141-4 of the guide member 140-4 in a form that conforms to the shape (annular shape) of the counter electrode 130-4 to some extent. {FIG. 2 (b) is a conceptual cross-sectional view of the ion / ozone wind generator 100-4, where the discharge point 120x-4 of the discharge electrode 120-4, the power reception point 130x-4 of the counter electrode 130-4, and The dotted line arrow indicates that the discharge is performed at the power receiving point 130y-4. However, since the discharge point of the counter electrode 130-4 is continuously formed, the discharge electrode 120-4 is connected to the counter electrode. 130- Discharge for the entire edge portion Okonawaru}. In this case, a portion through which the ion wind easily passes (a region corresponding to the counter electrode 130-4 with respect to the shadow of the ejection port 141-4 when projected in the ring axis direction of the counter electrode 130-4), and the ion wind Is difficult to pass through (a region corresponding to a portion in which the counter electrode 130-4 is cut out from the jet outlet 141-4 when projected in the ring axis direction of the counter electrode 130-4). It will be uniform. For this reason, apart from the ion wind, the wind from the intake opening 142-4 toward the jet outlet 141-4 along the inner wall surface of the guide member 140-4 (the wind that passes through the portion where the ion wind is difficult to pass) Occurs. As a result, it is considered that a turbulent flow that pulls the ion wind in the outer circumferential direction of the jet nozzle 141-4 is generated at the jet nozzle 141-4, and the ion wind is involved to diffuse the ion wind. Furthermore, according to the present embodiment, since the distance between the guide member 140-4 and the ion wind generated at the counter electrode is easily separated, the ion wind reaches the jet outlet 141-4. It becomes difficult to come into contact with the guide member 140-4 (further, the wind passing through the portion where the ionic wind is difficult to pass protects the ionic wind itself), and attenuation of the ionic wind inside the guide member 140-4 is suppressed. (Furthermore, the ion wind is gathered along the inner wall of the guide member 140-4 while remaining in a state of being difficult to contact the guide member 140-4). As a result, an ion wind having a sufficient air volume (including sufficient ions) reaches the jet nozzle 141-4, and the ion wind is diffused at the jet nozzle 141-4. It is possible to deliver ions over a wide range while reducing the ozone concentration. It should be noted that the difference in ion concentration between the ion wind and the wind flowing in from the intake opening 142-4 is also involved in the generation of turbulent flow that diffuses the ion wind, further enhancing the ion wind diffusion effect. There is a possibility.

On the other hand, when the ring diameter of the jet nozzle 141 of the guide member 140 is equal to or less than the ring diameter of the counter electrode, as in the conventional apparatus shown in FIG. The wind that wraps around from the outside of the electrode joins the ion wind inside the guide member 140. As a result, since the integrated wind is ejected from the jet outlet 141 as a whole, it is considered that the turbulent flow that pulls the ion wind in the outer peripheral direction of the jet outlet 141 is unlikely to occur (as a result, the jet The ozone concentration in the vicinity of the outlet 141 remains high). In addition, since the guide member 140 and the ion wind are easily in contact with each other, the ion wind is attenuated inside the guide member 140. As a result, the generated ion wind may be poor in wind power, and ions (ion wind) are delivered over a wide range. It becomes difficult to let you.

As described above, the ion / ozone wind generating apparatus 100-4 according to the present embodiment changes the shape of the guide member 140-4 to perform efficient diffusion without separately providing a blower or the like and deliver it to the target space. The ozone concentration in the vicinity of the jet nozzle 141-4 is lowered while maintaining the amount of ions to be generated (the ions are blown over a wide range).

Next, an outline of an ion / ozone wind generator 100-5 according to a second embodiment (a fifth embodiment to be described later) of the present invention will be described with reference to FIG.

As shown in FIG. 3, an ion / ozone wind generator 100-5 according to this embodiment includes a cylindrical counter electrode 130-5 having an internal space, and a part of the internal space of the counter electrode 130-5 (front end). ) In a state of being inserted into the needle-shaped discharge electrode 120-5. More specifically, the counter electrode 130-5 has an outlet 130α-5 (constriction 130α-5) that is an opening through which ion wind is ejected (in this embodiment, the constriction that has the narrowest cross-sectional area in the member). Portion 130α-5 is also the outlet 130α-5), an intake opening 130β-5 serving as an intake port having a larger diameter (ring diameter) than the outlet 130α-5, and an injection from the intake opening 130β-5 A reduced diameter portion 130r-5 (inclined portion) that is reduced in diameter toward the outlet 130α-5. As described above, the main feature of the present embodiment is that the diameter (ring diameter) of the intake opening 130β-5 is larger than the diameter (ring diameter) of the jet outlet 130α-5. The jet outlet 130α-5, the intake opening 130β-5, and the like indicate each component (edge) in the counter electrode 130-5, but indicate a space formed by the component (edge). In some cases.

Next, the action and effect of the ion / ozone wind generator 100-5 having the above-described structure will be described with reference to FIG.

Since the ion / ozone wind generator 100-5 according to this embodiment has the above-described structure, as shown in FIG. 4, the discharge electrode 120-5 and the entire inner wall surface of the counter electrode 130-5 (In this embodiment, discharge is mainly performed from the tip of the needle serving as the end thereof. However, since the discharge point can be other than the tip of the needle, the discharge electrode 120 in FIG. The -5 discharge point is schematically depicted so that it is not just the tip of the needle). More specifically, the distance between the inner wall surface and edge portion of the counter electrode 130-5 and the discharge electrode 120-5 (particularly, the tip of the discharge electrode 120-5) is determined from the intake opening 130β-5 and the jet outlet 130α-5. Therefore, the discharge is not locally generated only at the edge portion of the counter electrode 130-5, but is dispersedly and stably repeated over a wide area of the entire inner wall surface of the counter electrode 130-5. Discharge (surface discharge) is performed. As a result, local discharge is reduced, and the ozone concentration contained in the generated ion wind can be reduced. Furthermore, since the counter electrode 130-5 has a shape in which the cross-sectional area gradually decreases from the intake opening 130β-5 side toward the jet outlet 130α-5, the counter electrode 130-5 occurs in the vicinity of the intake opening 130β-5. The ions (ion wind) generated inside the counter electrode 130-5 including the ions are surely guided to the vicinity of the jet outlet 130α-5. As a result, an ion wind having a high ion concentration and torque is ejected.

On the other hand, in the case of a conventional ion / ozone wind generator provided with a simple cylindrical counter electrode and a discharge electrode facing the cylindrical inlet, its edge (the end of the cylinder facing the discharge electrode). As a result of local discharge being easily performed at (1), an ion wind with an increased ozone concentration may occur. Furthermore, the ion wind generated from the counter electrode is decelerated due to the reaction between the inner wall surface of the counter electrode and the ion wind, and the ion wind tends to stay inside the counter electrode. As a result, the ion wind ejected from the cylindrical electrode has a high ozone concentration, but the ion wind force is not sufficient (does not have wind force enough to diffuse around).

As described above, the ion / ozone wind generator 100-5 according to the present embodiment designs the shape of the counter electrode 130-5 while paying attention to the facing relationship between the counter electrode 130-5 and the discharge electrode 120-5. Thus, the ozone generation amount itself is suppressed, and an ion wind with torque is generated.

Examples of the ion / ozone wind generator according to the present invention include the above-described configurations (ion / ozone wind generator 100-4 and ion / ozone wind generator 100-5). Various ion / ozone wind generators have been created. Hereinafter, such an example will be referred to as the first embodiment, and the ion / ozone wind generator according to the first embodiment will be described in detail to first explain the principle that ion wind is generated. The ion / ozone wind generator (ion / ozone wind generator 100-4 and ion) according to the present invention, which has been created after repeated efforts based on various theories found in the creation of the ozone wind generator, The ozone wind generator 100-5) and other components that serve as peripheral technology will be described in detail in the fourth and fifth embodiments.

<< First Embodiment >>
First, the ion / ozone wind generator according to the present embodiment has an electrode pair having a needle-like electrode and a counter electrode, generates a potential difference between the needle-like electrode and the counter electrode, and generates corona discharge. Generates ions, ozone and ionic wind. Further, the ion / ozone wind generating apparatus according to the present embodiment includes a main annular counter electrode having a planar shape and a sub-annular counter electrode having a planar shape surrounding the main annular counter electrode. The longest distance between the tip of the electrode and the main annular counter electrode is shorter than the shortest distance between the tip of the needle electrode and the sub annular counter electrode.

This configuration provides a large volume of ionic wind. In the case of a mere cylindrical or one flat circular counter electrode, the discharge discharges in a donut shape along the inner side of the cylindrical electrode of the counter electrode at the shortest distance or the inner side of the flat circular electrode, and a donut ion wind is generated. The center of the donut is windless. Therefore, the ionic wind becomes weak as a result of the loss that uses the energy that the generated ionic wind induces the windless center. The problem is solved by providing the main annular counter electrode and the sub annular counter electrode as in this embodiment.

The ion / ozone wind generator according to this embodiment has an electrode pair having a needle electrode and a counter electrode, generates a potential difference between the needle electrode and the counter electrode, and generates ion / ozone by corona discharge. And an ionic wind is generated. In general, an ion wind is generated by repeatedly colliding with air molecules while ions emitted from the needle electrode during the corona discharge migrate toward the counter electrode, so that the needle winds from the needle electrode toward the counter electrode. It is said that the resulting air flow. That is, it is an air flow generated according to the flow direction of ions generated during discharge. Hereinafter, the detailed structure of the ion / ozone wind generator according to the present embodiment will be described.

Schematic structure of the ion / ozone wind generating apparatus according to the present embodiment is shown in FIG. A1. Here, FIG. A1 (a) is a conceptual front view of the counter electrode of the apparatus, and FIG. A1 (b) is a conceptual side view of the ion / ozone wind generating apparatus 100. The ion / ozone wind generator 100 according to this embodiment includes an electrode pair 110 having a needle electrode 120 and a counter electrode 130. Here, the counter electrode 130 includes a circular annular electrode 131 located on the innermost side disposed on the extension line axis of the needle-like electrode 120, and an outer circular annular electrode 132 having a different radius arranged coaxially with the electrode. . That is, these annular electrodes are disposed so as to be perpendicular to the annular plane and to be positioned on an axis passing through the center of gravity (circular center) of the ring. By using the counter electrode having such a circular shape among the annular counter electrodes, the distance from the tip of the needle-like counter electrode to each part of the counter electrode becomes substantially equal, so that discharge unevenness is reduced. In addition, since the needle-like electrodes are arranged on the axis of the ring in this way, the ionic wind generated from the main annular counter electrode is particularly strong.

These

annular electrodes

131 and 132 are preferably bridged so as to be energized by a connecting member such as a bridge 139. With this configuration, each annular electrode can be made equipotential, It becomes easy to adjust the positional relationship between these electrodes. For example, when connected by a corrugated member, a portion having a substantially triangular shape is formed between the main annular counter electrode and the sub-annular counter electrode, so that unevenness occurs in corona discharge and a large amount of ion wind is forward. Will not be pushed out. Therefore, a conceptual straight line connecting the connecting portion between the connecting member and the secondary annular counter electrode and the connecting portion between the connecting member and the main annular counter electrode passes through the center of gravity of the main annular counter electrode so as not to interfere with the generation of ion wind. It is preferable to arrange the connecting members as described above. By connecting in this way, the generation unevenness of the ionic wind due to the discharge unevenness is less likely to occur.

It is preferable that the main annular counter electrode and the sub annular counter electrode constituting the counter electrode are arranged in the same plane. Since it is the distance that makes the discharge efficiency of the sub-annular counter electrode gradually weaker than that of the main annular counter electrode, it is preferable to arrange the same on the same plane because the distance can be easily changed.

The needle electrode 120 and the counter electrode 130 are connected to a voltage applying means or a ground, respectively, and in use, a potential difference is generated between the electrodes to discharge. Here, the positional relationship between the distal end portion P of the needle-like electrode 120 and the innermost main annular counter electrode 131 is preferably a positional relationship that is most suitable for emitting ion wind, and such a distance is set. By disposing, a relatively strong ion wind is emitted as the annular counter electrode having a smaller radius located at the center of the counter electrode, and as a result, a large amount of ion wind can be obtained. If it exists in such a positional relationship, the cyclic | annular counter electrode may be distribute | arranged on the same plane and may be distribute | arranged on another plane. In addition, the broken line arrow shown from the front-end | tip part P to the cyclic | annular counter electrode in the figure shows the ion migration direction by corona discharge.

The positional relationship suitable for emitting ion wind will be described with reference to the schematic diagram of FIG. In FIG. A2 (a), the positional relationship between the annular counter electrode 131 and the tip portion P of the needle electrode 120 is shown using the cross section of the annular counter electrode 131 located in the innermost part. In FIG. The positional relationship between the annular counter electrode 132 and the tip portion P is shown.

First, when there is a positional relationship between the tip portion P and the annular counter electrode 131, ions migrate toward the electrode in the direction of the arrow. That is, the ion wind is theoretically generated with an angle of θ ₁ from the tip portion P. Therefore, as a whole, an ion wind is generated in the direction of the generatrix line connecting the apex of the cone having the tip P as the apex to the end of the bottom surface. That is, ion wind is generated also in the outward direction of the annular counter electrode, but as a whole, the ion wind is pushed out from the center of the annular counter electrode in the front direction. On the other hand, in the case of a ring electrode having a relatively large radius like the annular counter electrode 132 shown in FIG. A2 (b), the ion wind is theoretically generated at an angle of θ ₂ from the tip P. Become. That is, since the angle becomes larger, the ionic wind derived from this electrode has more components emitted toward the outer side of the annular counter electrode, and the volume of the ionic wind pushed toward the front surface becomes smaller.

Also, corona discharge is likely to occur with respect to the counter electrode located near the needle electrode. As the annular counter electrode is located at the center, the distance from the distal end portion P of the needle electrode becomes closer. That is, since the probability of occurrence of corona discharge is higher in the annular counter electrode positioned at the center, the absolute counter pressure of the generated ion wind is also higher in the annular counter electrode positioned at the center.

As described above, the annular counter electrode 131 located at the innermost portion is advantageous in the direction in which the ion wind is generated, and the absolute wind pressure in which the ion wind is generated is also large. Therefore, the counter electrode as shown in FIG. A1 is in a state in which the ion wind emitted from the annular counter electrode becomes stronger as the radius of the annular electrode becomes smaller. By arranging in this way, no stagnation occurs due to the ionic wind emitted from the external electrode, and the ionic wind emitted from the center is involved, so the air volume increases, and the ions and ozone generated by the discharge are reduced. Since the action of extruding to the front surface by the ionic wind is obtained, the effect of sterilization and deodorization is enhanced. Further, it is more preferable that the distance between the annular counter electrode 131 located at the innermost part and the tip end portion P is maintained at a distance that is most easily discharged in corona discharge. However, if the diameter of the annular portion of the counter electrode is simply made large, a large discharge reaction occurs, but since the discharge occurs in a donut shape, the central portion of the windless area is also large due to the absence of the counter electrode portion at the annular center of the counter electrode. As a result, discharge unevenness occurs and a donut-like ion wind is generated. As a result, the outer periphery and the central portion of the generated ion wind are in a no-wind state, and the donut-like ion wind induces a no-wind region so that no strong wind is generated. If the diameter of the annular part is small, an ion wind with strong wind pressure is emitted, but the amount of generation is small. While generating strong wind pressure, the outer circumference has a large diameter and weak wind pressure but emits a side stream with a large air volume. In other words, the counter electrode according to the present embodiment has a large air diameter, the wind pressure is weak but the air volume is large, and if the diameter is small, the wind pressure is strong but the air volume is small. The shape is compatible with wind pressure and large amount of generation.

By making the counter electrode planar, the ionic wind generated from the counter electrode is not decelerated due to the reaction between the obstacles such as the wall surface and the ionic wind, and the main ionic wind generated from the main annular counter electrode; Since the secondary ion wind generated from the secondary annular counter electrode is immediately synthesized, the main ion wind can quickly obtain the synergistic effect of the tail wind by the surrounding secondary ion wind immediately after the generation, so that a larger volume of ion wind can be generated. Obtainable. On the other hand, when the counter electrode is, for example, cylindrical, a wall surface is present in the counter electrode, so that the ion wind generated from the counter electrode is decelerated due to the reaction between the wall surface and the ion wind. Thus, by making the counter electrode planar, it becomes possible to obtain a large amount of ionic wind, unlike the case of a cylindrical shape or the like. In addition, since the shape of the counter electrode is not a cylindrical shape but a flat shape, the device can be miniaturized, and even if the device is miniaturized in this way, The air volume is not reduced. In addition, the planar electrode facilitates cleaning of the counter electrode. Note that, for example, in the case of the wire mesh counter electrode as in Patent Document 9 described above, each counter electrode is not annular, and the planar normal vector in each counter electrode is not substantially in the same direction. The ion wind generated from the counter electrode is decelerated due to the fact that uneven discharge is likely to occur and the ion wind generated from the counter electrode is not uniform, etc. (the ion wind generated at each counter electrode is optimal) Not synthesized), which is not preferable.

In the ion / ozone wind generating apparatus according to this embodiment, the longest distance between the tip of the needle electrode and the main annular counter electrode is shorter than the shortest distance between the tip of the needle electrode and the sub annular counter electrode. By arranging the needle-like electrode and the counter electrode in such a distance relationship, the ion wind with the strongest wind pressure is generated from the opening formed in the center of the main annular counter electrode, and from the surrounding sub-annular counter electrode. Since an ionic wind having a low wind pressure is generated, a large amount of ionic wind can be obtained. When deviating from the positional relationship between the needle-like electrode and the counter annular electrode, the ion wind is mainly generated from the space between the main annular counter electrode and the sub-annular counter electrode, resulting in uniform wind. For this reason, the ionic wind released in the air becomes weak, and a reaction also occurs when a guide member is provided.

The number of annular counter electrodes constituting the counter electrode 130 is not limited to two as shown in FIG. A1, and many annular counter electrodes may be provided.

The counter electrode according to the present embodiment may be polygonal.

A plurality of needle-like electrodes may be provided.

FIG. A3 is a schematic view showing an example of a counter electrode according to the present embodiment. Here, the counter electrode is formed by providing a hole in the plate. FIG. A3 (c) is a conceptual diagram of a plate-like counter electrode 130c having a circular counter electrode. The counter electrode includes a first counter electrode 130c-1 and a second counter electrode 130c-2. The first counter electrode 130c-1 is formed with a circular main annular counter electrode 131c-1 at the center, and a circular sub annular counter electrode 132c-1 is formed around it. Sub-circular counter electrodes 133c-1, 134c-1, and 135c-1 are further formed on the outer periphery of the electrode 132c-1. A connecting member 139c-1 is formed between these counter electrodes. Similarly, the second counter electrode is also formed with a circular main annular counter electrode 131c-2 in the center, and a circular sub annular counter electrode 132c-2 is formed around it. Sub-circular counter electrodes 133c-2 and 134c-2 are further formed on the outer periphery of the electrode 132c-2. A connecting member 139c-2 is formed between these counter electrodes. Needle-like electrodes are arranged at appropriate positions with respect to these plate-like counter electrodes.

FIG. A3 (b) is a diagram showing a schematic configuration of the plate-like counter electrode 130b. In the plate-like counter electrode 130b, the main annular counter electrode has a circular shape, and the surrounding sub-annular counter electrode has a hexagonal shape. The plate-like counter electrode 130b includes a first counter electrode 130b-1 and a second counter electrode 130b-2. A circular main annular counter electrode 131b-1 is formed at the center of the first counter electrode 130b-1, and a hexagonal sub-annular counter electrode 132b-1 is formed around it. Sub-circular counter electrodes 133b-1, 134b-1, and 135b-1 are formed on the outer periphery. These counter electrodes are connected by a connecting member 139b-1.
Similarly, a circular main annular counter electrode 131b-2 is formed at the center of the second counter electrode 130b-2, and hexagonal sub-annular counter electrodes 132b-2 to 134b-2 are formed around it. These electrodes are connected by a connecting member 139b-2.

FIG. A3 (a) is a diagram showing a schematic configuration of the plate-like counter electrode 130a. In the plate-like counter electrode 130a, a circular main annular counter electrode and an annular sub-annular counter electrode are formed around it. The plate-like counter electrode 130a includes a first counter electrode 130a-1 and a second counter electrode 130a-2. A circular main annular counter electrode 131a-1 is formed at the center of the first counter electrode 130a-1, and a plurality of sub-annular counter electrodes 132a-1 are formed around it. In FIG. A3 (a), a representative example of the sub annular counter electrode 132a-1 is shown, but 132a-1 formed around the main annular counter electrode 131a-1 is also a sub annular counter electrode. is there. By forming in this way, the member formed between the sub-annular counter electrodes is in a state of spreading radially from the main annular counter electrode, so in addition to the ion wind generated from the main annular counter electrode, As the distance from the main annular counter electrode increases, the amount of ion wind continuously decreases. Similarly to the first counter electrode, the second counter electrode 132a-2 has a main annular counter electrode 131a-2 and a sub-annular counter electrode 132a-2 at the center.

Note that FIG. A3 (d) is a common side view of the plate-like counter electrodes 130a to 130c.

An ion / ozone wind generator having a plurality of electrode pairs 110 according to this embodiment may be used.

A truncated conical ion wind guide member may be provided.

A plurality of electrode pairs 110 provided with these guide members may be provided.

Here, as shown in FIG.B1, the counter electrode in the main electrode pair and / or the sub electrode pair is not limited to a polygonal shape, a circular shape, and a substantially circular shape, but is a spiral shape (the number of turns and the winding width are It may be an example only). Here, the difference between the spiral shape as shown in FIG. B1 (a) and the spiral shape as shown in FIG. B1 (b) is the presence or absence of the end point of the spiral when the spiral shape is formed toward the center. . In particular, when each counter electrode has a spiral shape as shown in FIG. B1 (b), there is an advantage that it is easy to conduct the counter electrodes. When the counter electrode has such a spiral shape, there is a concern that unevenness may occur in the corona discharge as compared with the case of the multi-ring structure. However, as the counter electrode itself becomes smaller, (For example, the diameter of the counter electrode is about 1 cm), and the distance error (peeling from the multiple ring structure) between each part of the spiral lead wire that causes the unevenness and the needle-like electrode is small, so it is equivalent to the multiple ring structure It will be supplemented that the effect of can be easily obtained.

<< Fourth Embodiment >>
An ion / ozone wind generator capable of more spatially diffusing generated ions (ionic wind) will be described in detail as a fourth embodiment.

The basic configuration of the ion / ozone wind generator 100-4 according to this embodiment is as shown in FIG. That is, as described above, the cylindrical guide member 140-4 having the needle-like discharge electrode 120-4 and the annular counter electrode 130-4 and capable of introducing the ion wind generated between these electrodes is provided. The guide member 140-4 has an outlet 141-4 (constriction 141-4) which is an opening through which ion wind is ejected, and a diameter (ring diameter) larger than the constriction 141-4. An intake opening 142-4 that serves as a wind intake port, and a reduced diameter portion 140r-4 that is reduced in diameter from the intake opening 142-4 toward the narrowed portion 141-4. The diameter (ring diameter) of the portion 142-4 is configured to be larger than that of the counter electrode 130-4. The guide member 140-4 may be fixed to the ion / ozone wind generator 100-4 by an appropriate method.

Here, with reference to FIG. E1, the specific configuration of the guide member 140-4 and the counter electrode 130-4 of the ion / ozone wind generator 100-4 according to the present embodiment will be described in detail. The diameter (ring diameter) of the jet outlet 141-4 is R _A , the diameter (ring diameter) of the intake opening 142-4 is R _B , and the distance (guide member 140) between the jet outlet 141-4 and the suction opening 142-4. -4 height with respect to the axial direction) of d, the diameter of the counter electrode 130-4 (the ring diameter) upon the _{R _1,} R a / _{R 1} is greater than 1, preferably 1.1 to 3.5, more preferably 1.2 to 3, particularly preferably 1.3 to 1.8. The upper limit of R _A / R ₁ is not particularly limited, but is less than 4, for example. R _A / R _B is more than 1, preferably 1.1 to 3, and more preferably 1.2 to 3. Further, R _A / d is not particularly limited, but is preferably 0.1 to 2, more preferably 0.3 to 1.5. By making the configuration of the guide member 140-4 within such a range, the effect of the present embodiment can be further enhanced.

Further, the guide member 140-4 is not limited to a frustum shape (conical frustum shape) as shown in FIGS. 1 and E1, and for example, as shown in FIGS. E2 (a) and E2 (b). The diameter-reduced portion 140r-4 of the guide member 140-4 is curved in cross section from the intake opening 142-4 toward the jet outlet 141-4 {the cross section here refers to the member axis (the direction in which the ion wind travels) A vertical section of the internal space with respect to the (axis) direction is shown. } May change (the cross-sectional area of the opening gradually decreases while increasing the rate of change).

Here, the narrowed portion (the narrowed portion 141-4) in the above-described configuration may be a portion in the member (guide member 140-4) where the cross-sectional area of the internal space with respect to the central axis direction is substantially minimum. The narrowed portion 141-4 may not coincide with the ejection port. More specifically, for example, as shown in FIGS. E3 (a) and E3 (b), a constricted portion 141-4 is provided between the intake opening 142-4 and the outlet (outlet 143-4). And provided with a reduced diameter portion 140r-4 whose sectional diameter decreases in a curved manner from the intake opening 142-4 toward the narrowed portion 141-4 (the cross section is reduced in diameter), and from the narrowed portion 141-4 This is a structure provided with an enlarged diameter portion 140S-4 whose sectional diameter increases in a curved line toward the ejection port 143-4 (the sectional diameter increases). In addition, the shape of the enlarged diameter portion 140S-4 and / or the reduced diameter portion 140r-4 in the case of providing the enlarged diameter portion 140S-4 is not particularly limited, and the cross-sectional diameter is independently increased in a curved line ( The shape may be selected from a shape in which the diameter of the cross section increases, a frustum shape in which the cross section diameter increases linearly, and the like.

In this case, it is preferable that the enlarged diameter portion 140S-4 has a shape (so-called trumpet shape) whose cross-sectional diameter changes in a curved manner. By adopting such a shape, an air pocket (a portion circled by a dotted line in FIG. E3 (a)) in which an ion wind after passing through the constricted portion 141-4 is difficult to occur is generated. That is, since the inner wall of the guide member 140-4 becomes a curved surface whose diameter increases from the narrowed portion 141-4 toward the jet outlet 143-4, the ion wind directed near the narrowed portion 141-4 gradually increases. As a result, the ionic wind hardly exists and air pockets with non-uniform air pressure are generated. As a result, a turbulent flow is generated in the pocket portion, and the ion wind ejected from the ejection port 143-4 is further diffused.

Similarly, the structure in which the air pocket is formed by the enlarged diameter portion 140S-4 may be a structure in which the enlarged diameter portion 140S-4 is rapidly expanded. For example, a structure in which an annular plane member is provided with the jet nozzle 141-4 serving as an inner peripheral edge (a structure in which the enlarged diameter portion 140S-4 extends in a direction substantially perpendicular to the axial direction of the ion wind) is adopted. Even in this case, it is considered that an air pocket is formed in the vicinity of the outer peripheral edge of the ring.

Here, in the ion / ozone wind generating apparatus 100-4 according to the present embodiment, a member capable of diffusing the ion wind by facing the ion wind may be provided so as to inhibit the progress of the ion wind. . As a more specific configuration, for example, as shown in FIG. E4, a conical splitter 145-4 is provided at the outlet 143-4 of the ion / ozone wind generator 100-4 according to FIG. E3 described above. It is. In such a configuration, the ion wind ejected from the ejection port 143-4 spreads by the splitter 145-4 and is forcibly diffused. Furthermore, since turbulent flow can occur at the back of the splitter 145-4, it can be considered that the ion wind is more diffused. The shape of such a splitter 145-4 is not particularly limited. From the tip (where the ion wind can first contact), the shape is such that the ion wind is diffused efficiently but does not interfere with the ejection of the ion wind. It is preferable that the cross-sectional area gradually increases (the cross-section increases in diameter) from the rear end (where the ion wind can finally contact) (for example, a weight shape as shown in FIG. E4) (Conical)}. The diameter of the maximum diameter portion of the splitter 145-4 (the bottom surface of the splitter 145-4 when it is conical) is not particularly limited, and may be set as appropriate according to the degree of diffusion of the ion wind. The diameter can be appropriately changed, for example, a diameter of 1/1 to 1/4 with respect to the diameter of 141-4. The splitter 145-4 is arranged in such a manner that all of them are inserted into the internal space of the guide member 140-4; some of them are inserted into the internal space of the guide member 140-4. Any of the forms existing outside the internal space of the guide member 140-4; the forms existing all outside the internal space of the guide member 140-4 may be used. The splitter 145-4 may be fixed to the ion / ozone wind generator 100-4 by an appropriate method. In addition to the ion / ozone wind generator 100-4 (that is, the structure in which the enlarged diameter portion 140S-4 is provided) according to FIG. E3 described above, the splitter 145-4 is not shown in FIG. 1 or FIG. The ion / ozone wind generator 100-4 (that is, the structure not provided with the enlarged diameter portion 140S-4) can be similarly installed. An ionic wind diffusion effect can be achieved.

Here, in the present embodiment, in order to enhance the effect of the invention, the counter electrode 130-4 exists in the internal space of the guide member 140-4 (the counter electrode 130-4 is covered with the guide member 140-4). However, the present invention is not limited to this, and a part or all of the counter electrode 130-4 may be configured to exist outside the internal space of the guide member 140-4 (that is, the counter electrode 130-4). The electrode 130-4 may be present in a region opposite to the narrowed portion 141-4 side in the plane where the intake opening 142-4 exists.

Further, in order to further increase the diffusion efficiency of the ion wind in the vicinity of the jet outlet of the guide member 140-4, the intake opening 142-4 and the jet outlet 141-4 (constriction 141-4) have substantially similar shapes. However, the present invention is not limited to this, and the intake opening 142-4 and the jet outlet 141-4 may have an asymmetric shape (for example, the intake opening 142-4 may have a circular shape). For example, the nozzle 141-4 has a rectangular shape). In this case, the shape of the reduced diameter portion 140r-4 can be changed as appropriate in accordance with the shapes of the intake opening 142-4 and the jet outlet 141-4. Similarly, the shape of the intake opening 142-4 is preferably substantially similar to the shape of the annular electrode 130-4, but is not limited thereto, and the shape of the intake electrode 142-4 and the intake opening 142- 4 may be formed in a similar shape (for example, the annular electrode 130-4 is circular and the intake opening 142-4 is rectangular).

Further, in the present embodiment, the axis of the constricted portion 141-4 (annular axis), the axis of the intake opening 142-4 (annular axis), and the axis of the counter electrode 130-4 are substantially aligned with each other. However, the positions of these axes may be deviated as long as the effects of the invention are not impaired.

Here, the counter electrode 130-4 according to this embodiment has a monocyclic structure, but is not limited to this, and may have a multi-ring structure. For example, as shown in FIGS. E5 and E6, a double ring structure having a main ring electrode 131-4 and a sub ring electrode 132-4 may be used.

Here, when the counter electrode 130-4 has a multi-ring structure, the ring diameter of the jet outlet of the guide member 140-4 is the ring of the main ring electrode 131-4 which is a counter electrode capable of generating main ion wind. (The main ion wind and the secondary ion wind have different flow rates, and the main ion wind is the main factor. Therefore, the main ion wind is not the entire ion wind generated by the multi-ring electrode, but the main ion wind. Just focusing on the wind can produce the above effects). Further, when the counter electrode 130-4, which is a multiple annular electrode, and the guide member 140-4 according to the present embodiment are combined, it may be configured to be larger than the ring diameter of a plurality of annular electrodes including the main annular electrode. The diameter may be larger than the entire diameter of the multiple annular electrode. For example, the ring diameter _{R 1} of the primary annular electrode 131-4, the ring diameter _{R 2} of the secondary annular electrodes 132-4, with respect to the ring diameter _{R B} ring diameter _{R A} and the intake opening 142-4 jets 141-4, The ion / ozone wind generator 100-4 shown in FIG. E5 assumes the relationship of R _B > R _A > R ₂ > R ₁ , and the ion / ozone wind generator 100-4 shown in FIG. _A relationship of _B > R ₂ > R _A > R ₁ is assumed. Similarly, for example, when various members other than the secondary annular electrode (for example, a member made of a resin material for holding the annular electrode) are provided around the main annular electrode 131-4, the main annular electrode 131-4 is also provided. The diameter of the electrode 131-4 and the diameter of the ejection port of the guide member 140-4 need only satisfy the above relationship.

Further, the ion / ozone wind generating apparatus 100-4 according to this embodiment includes a configuration having a plurality of electrode pairs (a counter electrode 130a-4 including 132a-4 and 131a-4, and a discharge electrode 120a-4). It is good also as a structure which has multiple electrode pairs. For example, in the case of a configuration having a plurality of electrode pairs, the guide member 140-4 may be arranged as follows: (1) As shown in FIG. E7 (a), a plurality of counter electrodes are combined into one counter electrode. A method of arranging the catch guide member 140-4; (2) a method of arranging the guide member 140-4 on each of the counter electrodes as shown in FIG. E7 (b); The form (2) is that the ion wind ejected from the outlet of a certain guide member is mixed with the ion wind from the adjacent guide member, so that the ion wind in the entire apparatus is more easily diffused. Is preferred. When the ion / ozone wind generator 100-4 has a plurality of electrode pairs, the guide member 140-4 may be arranged only for an arbitrary electrode pair (counter electrode). In addition, the ion / ozone wind generator as shown in FIG. E7 (and FIG. F3 described later), in other words, a plurality of electrode pairs each having a discharge electrode and a counter electrode (in this example, a main electrode pair and 6 pairs of sub-electrode pairs), and is configured to generate potential difference between each electrode pair to generate ions, ozone and ionic wind by corona discharge, and the counter electrode in each electrode pair is annular or spiral A pair of electrode pairs that are regularly adjacent to or close to each other so as to surround the counter electrode in the main electrode pair along the outer circumference of the counter electrode in the main electrode pair. The ion / ozone wind generator is provided with a plurality of pairs of sub-electrodes that are electrode pairs in which the counter electrodes are positioned, and the planar normal vectors in all the counter electrodes are substantially in the same direction. (Also Furthermore, it may be the shortest distance between the outer periphery of the counter electrode adjacent at least the sub-electrode pairs as less than or equal to the diameter of the counter electrode). In this case, each discharge electrode (each counter electrode) may be in a conductive state or a non-conductive state by appropriate means such as bridging the electrodes with a conductive material.

As described above, according to the ion / ozone wind generator according to the present embodiment, the guide member itself is configured to diffuse the ion / ozone wind. It is possible to suppress the attenuation of ion wind inside the guide member. As a result, it is possible to reduce the amount of ozone in direct contact with the object in the vicinity of the jet outlet while diffusing ions in the target space (as a result, it is also used in the vicinity of objects where the bleaching effect by ozone is not desirable). Can do).

«Fifth embodiment»
Here, the ion / ozone wind generating apparatus according to the fourth embodiment reduces the ozone concentration in the vicinity of the jet port by changing the configuration of the jet port, which is a location where the ion / ozone wind jets as a guide member, It was a configuration that allowed ion wind to reach a wide area. Next, unlike the ion / ozone wind generating apparatus according to the fourth embodiment, the ion / ozone wind generating apparatus 100 according to the fifth embodiment mainly intended to reduce the concentration of ozone generated during corona discharge. -5 will be described in detail.

The basic configuration of the ion / ozone wind generator according to the present embodiment is as shown in FIG. That is, as described above, the ion / ozone wind generator 100-5 according to the present embodiment includes a cylindrical (frustum-shaped) counter electrode 130-5 having an internal space, and a part of the counter electrode 130-5. A needle-shaped discharge electrode 120-5 in which the (tip) is inserted, and the counter electrode 130-5 is an outlet 130α-5 (constriction 130α-5) which is an opening through which ion wind is ejected. ), An intake opening 130β-5 serving as a wind inlet having a larger diameter (ring diameter) than the jet outlet 130α-5, and a diameter reduced from the jet outlet 130α-5 toward the inlet opening 130β-5. A reduced diameter portion 130r-5.

Here, with reference to FIG. F1, a more specific configuration of the counter electrode 130-5 of the ion / ozone wind generator 100-5 according to the present embodiment will be described in detail. The diameter (ring diameter) of the jet outlet 130α-5 R _α , the diameter (ring diameter) of the intake opening 130β-5 is R _β , and the distance between the outlet 130α-5 and the intake opening 130β-5 (the height of the counter electrode 130-5 in the axial direction) is In the case of z, R _β / R _α is more than 1, more than 1, preferably 1.1 to 3, and more preferably 1.2 to 3. R _α / z is not particularly limited, but is preferably 0.1 to 2, and more preferably 0.3 to 1.5. By making the configuration of the counter electrode 130-5 in such a range, the effect of this embodiment can be further enhanced.

In the ion / ozone wind generator 100-5 according to the present embodiment, the positional relationship between the discharge electrode 120-5 and the counter electrode 130-5 is not particularly limited, and the discharge is performed outside the internal space of the counter electrode 130-5. The electrode 120-5 may be provided (that is, the discharge electrode 120-5 is opposite to the region where the intake opening 130β-5 exists when viewed from the plane where the intake opening 130β-5 exists). May be provided in the area). Note that, as in the present embodiment, the tip of the discharge electrode 120-5 is inserted into the internal space of the counter electrode 130-5, so that the local area of the counter electrode 130-5 with the intake opening 130β-5 is local. Therefore, it is possible to suppress discharge (by making the entire inner wall surface of the counter electrode 130-5 function as a discharge portion), and to generate ions / ozone wind having a more uniform and low ozone concentration. On the other hand, when the discharge electrode 120-5 is arranged outside the internal space of the counter electrode 130-5, discharge from the edge portion (for example, the intake opening 130β-5) of the counter electrode 130-5 is performed. In some cases, the ratio increases, and it is difficult for the discharge to the inner wall surface of the counter electrode 130-5 to occur (that is, local discharge to the intake opening 130β-5 tends to occur). Therefore, from the viewpoint of further reducing the ozone generation rate, it is preferable to dispose at least a part (tip) of the discharge electrode 120-5 so as to be inserted into the internal space of the counter electrode 130-5.

Furthermore, in the ion / ozone wind generating apparatus according to the present embodiment, it is preferable that the discharge electrode 120-5 does not penetrate to the outlet 130α-5. When the discharge electrode 120-5 penetrates to the jet outlet 130α-5 side (when the tip of the discharge electrode 120-5 is in a region opposite to the intake opening 130β-5 when viewed from the plane where the jet outlet 130α-5 exists) ) Since an ion wind in the opposite direction from the jet outlet 130α-5 toward the intake opening 130β-5 may be generated, the momentum of the ion wind may be cut off. From this point of view, the distance from the tip of the discharge electrode 120-5 to the jet port 130α-5 is z (jet port) in a situation where the tip of the discharge electrode 120-5 does not penetrate to the jet port 130α-5 side. 4/5 or less, more preferably 3/4 or less, and 2/3 or less, based on the distance between the outlet 130α-5 and the intake opening 130β-5) It is particularly preferred. In the present embodiment, the main traction force of the ion wind generated from the jet outlet is the discharge electrode 120-5 and the jet that are directional from the inlet opening 130β-5 side to the jet outlet 130α-5 side. Ion wind generated between the vicinity of the outlet 130α-5. Therefore, in order to increase the wind force of the ion wind toward the jet outlet 130α-5, the tip of the discharge electrode 120-5 does not penetrate to the jet outlet 130α-5 side, and the jet outlet 130α is discharged from the tip of the discharge electrode 120-5. The distance to −5 is preferably 1/5 or more with reference to z (distance between the jet outlet 130α-5 and the intake opening 130β-5), and more preferably 1/4 or more. It is suitable and it is especially suitable that it is 1/3 or more.

Further, the counter electrode 130-5 is not limited to the frustum shape (conical frustum shape) shown in FIGS. 3 and F1, and the reduced diameter portion 130r-5 of the counter electrode 130-5 is an intake opening portion 130β-5. Alternatively, the cross-sectional diameter may be changed in a curved manner from the jet outlet 130α-5. At this time, the shape of the counter electrode 130-5 is as follows: (1) As shown in FIG. F2 (a), a shape convex to the outside of the counter electrode 130-5 {similar to a part of a sphere (sphere crown) (Shape)}; (2) As shown in FIG. F2 (b), any of a convex shape (so-called trumpet shape) on the inner side of the counter electrode 130-5 may be used. When the counter electrode 130-5 has a frustum shape or a trumpet shape, slight unevenness can be generated in the discharge location (the relationship between the discharge electrode 120-5 and the counter electrode 130-5) to such an extent that the ozone concentration does not increase. As a result, a discharge relationship close to that when the counter electrode is a multiple ring is formed inside the counter electrode, and further, the ion wind generated inside the counter electrode is smoothly guided toward the jet outlet 130α-5. It is preferable that the momentum of the ion wind is strengthened. From the viewpoint of forming a multiple ring inside the counter electrode due to the structure of the counter electrode, a structure such as providing a groove or a projection that is substantially concentric with the electrode inside the counter electrode is also conceivable.

Further, as shown in FIG. F3, the ion / ozone wind generator 100-5 according to the present embodiment has a configuration having a plurality of electrode pairs (an electrode pair including a counter electrode 130a-5 and a discharge electrode 120a-5). It is good also as a structure which has multiple. In addition, this figure is an example at the time of applying the structure of electrode arrangement as the counter electrode 130a-5, and is not limited at all.

Further, in the counter electrode 130-5 according to the present embodiment, the jet outlet 130α-5 may have a multi-ring structure (the jet outlet 130α-5 is regarded as a sub-annular electrode, and an annular shape that serves as a main annular electrode therein) An electrode may be further provided). With such a configuration, the ion wind generated by the discharge between the main annular electrode and the discharge electrode provided at the jet outlet 130α-5 is changed to the ion wind generated inside the counter electrode 130-5. It is considered that the momentum of the ion wind that is pulled in the five directions and ejected from the ejection port 130α-5 increases.

The discharge electrode 120-5 according to the present embodiment is not limited to the needle-like electrode, and an annular discharge electrode may be used.

As described above, according to the ion / ozone wind generator according to the present embodiment, the generated ozone concentration is lowered, and ions (ion wind) generated inside the counter electrode are guided to the jet outlet. Therefore, it is possible to reduce the amount of ozone in direct contact with the object in the vicinity of the ejection port while ejecting torque ion wind and sufficiently diffusing ions in the target space (as a result, the bleaching effect by ozone It can also be used near objects that are not desirable).

100, 100-4, 100-5: ion / ozone wind generator 110: electrode pair 120: acicular electrodes 120-4, 120a-4, 120-5, 120a-5: discharge electrodes 130, 130-4, 130a -4, 130-5, 130a-5: counter electrode 130r-5: reduced diameter portion 130α-5: constricted portion 130β-5: intake opening 131, 132: annular counter electrode 131-4, 131a-4: main annular Electrodes 132-4, 132a-4: Sub-annular electrode 139: Bridge 140-4: Ion wind guide member 140r-4: Reduced diameter portion 143-4: Jet outlet 140S-4: Expanded diameter portion 141-4: Narrowed portion 142 -4: intake opening 145-4: splitter P: tip

Claims

An electrode pair having a needle-like discharge electrode and a counter electrode is provided, and is configured to generate a potential difference between the discharge electrode and the counter electrode to generate ions, ozone, and ion wind by corona discharge. And
The counter electrode has an annular opening serving as an air inlet, an annular constriction having a minimum inner diameter of the counter electrode, and an inner diameter of the counter electrode decreasing from the opening toward the constriction. It is a cylindrical shape having a reduced diameter portion and an internal space through which the ionic wind formed by the reduced diameter portion can pass, and is a frustum-like or trumpet-like structure.
The constriction is opened to allow the ion wind to pass through,
The diameter R β of the opening and the diameter R α of the constriction are R β > R α ,
The discharge electrode is configured to be inserted into the internal space without penetrating the surface where the constriction exists, and to be opposed to the inner wall surface of the counter electrode and the constriction. , Ozone or ion wind generator.
2. The ion, ozone or ion wind generator according to claim 1, wherein a needle axis of the discharge electrode and a cylinder axis of the counter electrode substantially coincide with each other.
The ion, ozone, or ion wind generating device according to claim 1 or 2, wherein the counter electrode is not opened in a cylinder side portion.
The ion, ozone, or ozone according to any one of claims 1 to 3, wherein the counter electrode further includes a diameter-enlarged portion in which an inner diameter of the counter electrode increases from the narrowed portion toward a side different from the opening. Ion wind generator.