JP4639311B2 - Ion generator and static eliminator - Google Patents

Description

  The present invention relates to an ion generator and a static eliminator, and more particularly, an ion generator / discharger that can easily adjust the generation ratio (ion balance) of positive ions and negative ions without requiring an electrical control means. Regarding electrical appliances.

  For example, in the case of a conventional type static eliminator, a general conventional ion generator / static eliminator applies a high voltage from a high voltage power source to a sharp needle-shaped ion generating electrode to generate a corona discharge. Is ionized. The needle-shaped ion generation electrode needs to generate corona discharge efficiently with the opposite ground electrode, so it is necessary to ensure a certain insulation distance, and to form the ion generation There is a problem that space is limited and there is a limit to the miniaturization of an efficient ion generator and static eliminator.

  In addition, with long-term use, the needle-shaped ion generating electrode is less likely to generate corona discharge due to the accumulation of dust and the like and wear due to physical sputtering, and the ion generation efficiency tends to decrease. Also, the ground electrode that is opposed to the needle-shaped ion generation electrode and is provided to stabilize the discharge also causes accumulation of dust and the like due to electrostatic adsorption due to high voltage and physical sputtering of the ion generation electrode. Contamination progressed and became a factor of reducing the ion generation efficiency.

  Therefore, the user is periodically forced to perform maintenance work to improve the ion generation efficiency by cleaning or replacing the needle-shaped ion generating electrode sharpened portion and further cleaning the ground electrode and its surroundings. Such maintenance work is cleaning the inside of the structure having a sharpened portion, and is also a part to which a high voltage is applied, so the work is dangerous and troublesome.

  Therefore, a plate-like ion generating element has been developed in which the discharge electrode and the induction electrode are arranged on a plate-like dielectric instead of a needle-like ion generating electrode (see Patent Documents 1 to 3).

JP 2003-323964 A JP 2003-249327 A JP 2004-105517 A

  In the techniques shown in Patent Literatures 1 to 3, a high-voltage power source is applied between a discharge electrode and an induction electrode via a dielectric to locally discharge and generate ions. It has become a shape. In addition, since local discharge is used, it is possible to generate the same amount of ions at low voltage and low power consumption compared to needle-shaped ion generating electrodes. By forming the protective layer, the deterioration of the electrode, the current leakage to the creepage surface, and the maintenance can be improved, so that the problems of the needle-shaped ion generating electrode are reduced.

  However, the ion generation by the electrode structure formed through the dielectric as described above causes the impedance between the electrodes to increase unless a relatively high frequency power is supplied, so that the efficiency is extremely reduced and ions are generated. I can't do that.

  In the case where a positive ion and a negative ion are generated alternately from one ion generating element by applying an AC type power supply, when a high frequency high voltage power supply is applied, the generation time interval between the positive ion and the negative ion is very long. Therefore, the generated ions are neutralized with the opposite polarity ions generated in the next cycle, become electrically stable, and the ions are very difficult to jump out, resulting in a decrease in the overall generation efficiency. (Refer to FIG. 23).

  In addition, when a high-voltage power supply (such as a pulse wave) having a DC component including a high-frequency component that allows easy adjustment of the ion concentration is applied, a positive voltage generated by applying a high-voltage power supply having a positive DC component. Compared with the case where the high-frequency high-voltage power source is applied, the ions are repelled by the Coulomb force, and ions can be ejected in a wide area to prevent neutralization. However, since ions of only one polarity are generated, in the case of an ion generator or a static eliminator that requires ions of both polarities, at least another set of two sets of devices is required. The advantage in terms of space cannot be expected.

  In addition, when bipolar ions are required, for example, at least two ion generating elements are used to generate positive ions and negative ions. Variations are likely to occur. That is, when the distance between the ion generating elements is relatively short, the generated ions are neutralized due to neutralization of the generated ions, and when the distance between the ion generating elements is far away, spatially An unbalanced portion of ions is generated. For this reason, when commercializing applications with different uses and sizes, it is necessary to derive the optimum conditions in consideration of the capacity difference depending on the mounting position of the ion generating element. Is big.

  In order to save space, it is possible to package two ion generating elements in one package and apply a DC high voltage power supply of each polarity. However, a discharge electrode for generating positive ions and a discharge electrode for generating negative ions are used. Because of the spatial proximity, neutralization due to the mixture of positive ions and negative ions increases, and the overall generation efficiency decreases. Further, even if the structure of the ion generating element is taken, it is equivalent to the case where two elements are manufactured, so that no cost merit can be expected (see FIG. 24).

  In order to solve the above-described conventional problems, the present inventor has a dielectric having at least two surfaces, at least two discharge electrodes disposed on at least two surfaces of the dielectric, Ion generating element comprising an induction electrode disposed inside and receiving the action of the at least two discharge electrodes, wherein ion generation is configured to generate positive ions and negative ions on different surfaces of the dielectric An element, an ion generator, and a static eliminator have been proposed previously (Japanese Patent Application No. 2005-043456).

  This previously proposed technology can generate both positive ions and negative ions with a single ion generating element, has high generation efficiency, is stable with little variation in generation capability, and further reduces cost and space. Is possible. Furthermore, in an ion generator provided with an ion generating element, the generated ion can be easily delivered by arranging the ion generating element in an airflow environment.

  As a result of further research on the previously proposed technique, the present inventor has made positive ions and negative ions by changing the angle of the dielectric with respect to the air flow direction when the ion generating element is disposed in the air flow environment. It was found that the generation ratio (ion balance) was changed.

  Accordingly, an object of the present invention is to provide an ion generator and a static eliminator that can easily adjust the generation ratio (ion balance) between positive ions and negative ions.

  The present invention for solving the above-described problems has the following configuration.

1. An ion generator for delivering ions generated by arranging at least one ion generating element for generating positive ions and negative ions in an air flow environment of an air flow sending means, wherein the ion generating element generates positive ions. An ion generator, characterized in that a surface for generating and a surface for generating negative ions are arranged so as to be variable in angle with respect to the airflow direction.

2. The ion generating element includes a dielectric having at least two surfaces, at least two discharge electrodes disposed on at least two surfaces of the dielectric, and the at least two discharge electrodes disposed inside the dielectric. 2. The ion generator according to 1 above, comprising an induction electrode that receives the action of the discharge electrode, and generating positive ions and negative ions on different surfaces of the dielectric.

3. The dielectric according to claim 2, wherein the dielectric is a plate-like material having a front surface and a back surface, and positive ions are generated from one surface and negative ions are generated from the other surface. Ion generator.

4). 4. The ion generator as described in 2 or 3 above, wherein the number of the induction electrodes is one.

5. 2. The ion generator according to 1 above, wherein the ion generating element includes an ion generating element that generates positive ions and an ion generating element that generates negative ions.

6 . A static eliminator having a structure in which static elimination is performed by the ion generator according to any one of 1 to 5 above.

  According to the first aspect of the present invention, an output voltage ON / OFF control, etc., is configured in such a manner that an ion generating element that is arranged in an airflow environment and generates positive ions and negative ions is variable in angle with respect to the airflow direction. Thus, the generation ratio (ion balance) between positive ions and negative ions can be easily adjusted without requiring such an electrical control means. Therefore, the ion balance can be adjusted at a low cost with a simpler configuration and means.

  According to the second and third aspects of the present invention, positive ions and negative ions are generated in a spatially separated state by an ion generating element configured to generate positive ions and negative ions on different surfaces of the dielectric. Therefore, neutralization (cancellation) is reduced, so that the ion generation efficiency is good, and the adjustment of the generation ratio (ion balance) between positive ions and negative ions is more accurate and efficient.

  According to the fourth aspect of the present invention, it is possible to reduce cost, mass production, and space saving by using one induction electrode of the ion generating element.

  According to the fifth aspect of the present invention, the present invention is applicable even if the ion generating element that generates positive ions and the ion generating element that generates negative ions are separate.

According to the sixth aspect of the present invention, since the ion generator shown in any one of the first to fifth aspects eliminates static electricity, the charge removal ratio (ion balance) between positive ions and negative ions can be adjusted more accurately and efficiently. Become.

  Details of the present invention will be described below.

First, the ion generating element preferably used for the ion generator of this invention is demonstrated based on FIGS.
2 is a block diagram showing an example of an ion generating element used in the present invention, FIG. 3 is a circuit diagram of FIG. 2, FIG. 4 is a block diagram showing another example of an ion generating element used in the present invention, and FIG. FIG. 6 is a perspective view and cross-sectional view showing another structural example of the ion generating element used in the present invention, FIG. 6 is a perspective view and cross-sectional view showing another structural example of the ion generating element used in the present invention, and FIGS. FIG. 10 is an explanatory view showing a plurality of examples of the protrusion shape of the discharge electrode, FIG. 11 is an explanatory view showing a plurality of examples of the shape of the induction electrode, and FIG. FIG. 12 is a comparison diagram of ion concentrations of an ion generating element that generates both ions on both sides of one package of an ion generating element and one dielectric.

  An ion generating element preferably used in the present invention is provided with a dielectric having at least two surfaces, at least two discharge electrodes disposed on at least two surfaces of the dielectric, and disposed inside the dielectric. An ion generating element having an induction electrode which receives the action of the at least two discharge electrodes, and has a configuration for generating positive ions and negative ions on different surfaces of the dielectric.

  That is, as shown in FIG. 2, the ion generating element 1 includes a dielectric 2 having two surfaces, a front surface A and a back surface B. The discharge electrode 1a is finely processed on the front surface A, and the discharge electrode 1b is finely processed on the back surface B. The induction electrode 3 is disposed inside the dielectric 2 so as to face the discharge electrodes 1a and 1b. The induction electrode 3 receives both actions of the discharge electrodes 1a and 1b in common and is surrounded by the dielectric 2, that is, embedded / embedded inside the dielectric 2. One induction electrode 3 may be provided for one ion generating element 1 or a plurality of induction electrodes 3. Further, one induction electrode 3 may be provided for a plurality of ion generating elements 1. It may be configured to be disposed.

  The ion generating element 1 can divide the space into at least two of the front surface A side and the back surface B side with the dielectric 2 itself as a boundary. Therefore, when positive ions are generated from the front surface A and negative ions are generated from the back surface B, that is, when positive ions and negative ions are generated on different surfaces of the dielectric 2 (front surface A and back surface B), they are generated respectively. Since ions are spatially separated by the dielectric 2 itself, neutralization (cancellation) due to mixing of positive ions and negative ions can be suppressed.

  By generating positive ions and negative ions on the front surface A and back surface B, a conventional high-frequency high-voltage power supply is applied to periodically generate positive ions and negative ions, or two ion generating elements Unlike the ion generation element (see FIG. 24) in which positive ions and negative ions are generated by packaging, that is, two ion generation elements arranged in pairs on the same plane (see FIG. 24), the ion generation efficiency is good. In addition, when both the positive ion and negative ion polarities are required, the space required for mounting can be reduced to about 1/2 as compared with those prepared for each ion generating element. Also in the maintenance man-hour of the ion generating element, the element exchanging work and the cleaning man-hour are simplified by about 1/2, and as a result, the cost can be reduced.

  In addition, since the ion generation element 1 has the discharge electrodes 1a and 1b and the induction electrode 3 formed in an integral structure, the positional relationship for generating positive ions and negative ions can be always constant, so that the ion generation The capability is constant, and the capability difference due to the interference effect due to the polarity of each ion generating element is difficult to reach. Therefore, when commercializing applications with different uses and sizes, the derivation of the optimum conditions is simplified, and not only product development is easy and low cost, but also speedy product provision is possible.

  The ion generating element 1 of FIG. 2 uses a power source 4 as a high voltage power source (hereinafter referred to as a DC type power source) having a direct current component including a high frequency component, and has a configuration shown in FIG. 3 as a specific example of a circuit. In the circuit example shown in FIG. 3, 4 is a power supply, 4A is a positive high voltage circuit, 4B is a negative high voltage circuit, 4C and 4D are transmission circuits, 4E is an output control circuit, and 4F is a power supply circuit. In applications that require accuracy of ion balance, it is possible to take a method of ensuring the accuracy by sensing the ion generation state.

  In addition, the ion generating element 1 of the present invention is not limited to the DC power source, and an AC power source may be used as shown in FIG. The generation efficiency is stable and the variation in generation capacity is small and stable, and the cost and space can be saved. The ion balance adjusting means can be easily adjusted by using a publicly known control method as in the case of the DC power source. In addition, the code | symbol in FIG. 4 shows the member and structure of the code | symbol demonstrated in the said FIG.

As a structural example of the ion generating element 1 preferably used in the present invention, FIG. 5 {(a) is a perspective view, and (b) is a cross-sectional view. } Is given as an example.
In the example of FIG. 5, the discharge electrodes 1 a and 1 b are formed at two locations on the front surface A and the back surface B of the plate-like dielectric 2, and the induction electrode 3 is formed so as to be surrounded by the dielectric 2.

  In the examples shown in FIGS. 2, 4 and 5, the discharge electrodes 1a and 1b are disposed on the two surfaces (the front surface A and the back surface B) of the plate-like dielectric 3, but the two surfaces Not limited to two discharge electrodes, three or more discharge electrodes may be disposed on three or more surfaces. However, in order to balance positive ions and negative ions, the number of faces is preferably an even number that can be divided by 2, and the number of discharge electrodes also generates negative ions with the discharge electrodes 1a that generate positive ions. The number of discharge electrodes 1b is preferably the same. For example, FIG. 6 {(a) is a perspective view, and (b) is a cross-sectional view. } Shows a mode in which four discharge electrodes (1a, 1a, 1b, 1b) are arranged on the four surfaces (A, A ', B, B') of the pillar-shaped dielectric 2. Also in the embodiment shown in FIG. 6, the action of the four discharge electrodes (1 a, 1 a, 1 b, 1 b) can be commonly received by one induction electrode 3.

  As an example of the arrangement of the discharge electrodes 1a and 1b and the induction electrode 3 on the dielectric 2, for example, in the plate-like ion generating element 1 shown in FIGS. Aspects can also be taken. 7 (a) is a plan view and FIG. 7 (b) is a cross-sectional view. } Is an embodiment in which the induction electrode 3 is arranged in a U-shape, and FIG. 8 (a) is a plan view and FIG. 8 (b) is a cross-sectional view. } Is an embodiment in which the discharge electrodes 1a and 1b are arranged diagonally and obliquely about the induction electrode 3, FIG. 9 (a) is a plan view, and FIG. 9 (b) is a sectional view. } Is a mode in which the induction electrode 3 is arranged in a mountain shape, and the discharge electrodes 1a, 1a, 1b, and 1b are arranged on the front surface A and the back surface b of the valley portion of the mountain shape of the induction electrode 3.

  The material of the discharge electrodes 1a and 1b of the ion generating element 1 preferably used in the present invention is not particularly limited as long as it has conductivity, and examples thereof include stainless steel, tungsten, and conductive ceramics. The discharge electrodes 1a and 1b are preferably made of a material that is difficult to deteriorate or melt due to discharge. If the discharge electrodes 1a and 1b are formed and protected by covering the discharge electrodes 1a and 1b with an insulating protective layer such as a surface coating according to the material and usage of the discharge electrodes 1a and 1b, the durability of the discharge electrodes 1a and 1b is extended. At the same time, dust generation from the discharge electrodes 1a and 1b can be reduced and maintenance can be simplified. Examples of the material for the surface coating include a DLC (diamond-like carbon) thin film coating and an epoxy-based insulating material.

  The shape of the discharge electrodes 1a and 1b is preferably a linear shape having a plurality of fine protrusions, and the fine protrusions are preferably 0.01 mm or more and 10 mm or less. The shape of the protrusion is not particularly limited as long as it is a shape capable of generating ions. For example, the shape as shown in FIG. 10A may be used, and other shapes such as a wavy shape, a circular shape, and a lattice shape may be used. But you can. It has been found that the ion generation efficiency is most influenced by the distance between the opposing induction electrode 3 and the fine protrusions of the discharge electrodes 1a and 1b and the relationship depending on the protrusion shape, as compared to the shape dependence of the discharge electrodes 1a and 1b. Yes. The shape is not particularly limited as long as electric field concentration is likely to occur effectively. For example, the shapes shown in FIGS. In addition, (b)-(g) of FIG. 10 is the elements on larger scale.

  The dielectric 2 of the ion generating element 1 preferably used in the present invention has a configuration in which the discharge electrodes 1a and 1b are formed on the respective surfaces (front surface A, back surface B, etc.) so as to surround the induction electrode 3. Yes. The distance between the discharge electrodes 1a and 1b formed on each surface and the induction electrode 3 formed so as to surround is controlled by the thickness of the dielectric 2, and the thickness is determined by the dielectric constant of the dielectric 2. However, the range of 0.01-5 mm is preferable. In addition, the shape is not particularly limited as long as it has the above-described structure such as a plate shape, a circular shape, a columnar shape, or a columnar shape. Examples of the material of the dielectric 2 include dielectric materials such as alumina, glass, and mica. At the time of molding, dielectric breakdown due to pinholes or the like of the material can be suppressed by laminating dielectric materials, and the withstand voltage can be improved.

  The discharge electrodes 1a and 1b can be formed on the dielectric 2 by publicly known means, but are preferably formed by ink jet printing, silk printing or screen printing.

  Unlike conventional needle-shaped ion generation electrodes, the discharge electrodes 1a and 1b have a structure that does not have a physical sharp point, and because the ion generation efficiency is good, it is possible to drive at a low voltage. In such a case, the danger of touching the ion generating element 1 is reduced.

  In addition, by controlling the distance between the discharge electrodes 1a and 1b and the induction electrode 3 by the thickness of the dielectric 2, for example, the distance between the discharge electrode 1b and the induction electrode 3 can be set with respect to the distance between the discharge electrode 1a and the induction electrode 3. By increasing the length, it is possible to adjust the amount of ions generated from both. It is known that there is a difference in energy required for generation of positive ions and negative ions, and until now it was necessary to adjust the applied voltage source, but the level of ion generation by controlling the thickness of the dielectric 2 Can also be adjusted.

  The induction electrode 3 is formed so as to be surrounded by the dielectric 2, and functions as a common electrode formed facing the discharge electrodes 1 a and 1 b. The material of the induction electrode 3 is not particularly limited as long as it has conductivity, and examples thereof include stainless steel, tungsten, and conductive ceramics.

  The shape of the induction electrode 3 is not particularly limited as long as it is an electrode structure facing the discharge electrodes 1a and 1b. For example, various shapes shown in FIGS. 11 (a) to 11 (d) Can be taken.

  According to the ion generating element 1 having the above configuration, a driving voltage is applied between the electrodes of the discharge electrodes 1a and 1b and the induction electrode 3, and either one of the positive ions is generated by the discharge generated based on the potential difference. Since negative ions are generated from one surface and generated from the other surface, positive ions and negative ions are generated in a spatially separated state, so neutralization (cancellation) is reduced and ion generation efficiency is good. In addition, since the positional relationship for generating positive ions and negative ions is always constant, the ion generation capability is also constant, and it is difficult to achieve a difference in capability due to interference effects due to the polarities of the ion generation elements. Therefore, when commercializing applications with different uses and sizes, the derivation of optimum conditions is simplified, and not only product development is easy and cost can be reduced, but also speedy product provision becomes possible.

  FIG. 12 shows an ion generating element 1 that generates both ions on both surfaces (front surface A and back surface B) of one dielectric 3 described above, an ion generating element that generates positive ions, and an ion generating element that generates negative ions. Is a comparison diagram of the ion concentration with the ion generating element that is in one package. As is clear from FIG. 12, the ion generating element 1 described above is a one-package ion generating element, that is, an ion generating element in which two ion generating elements are arranged as a pair on the same plane (see FIG. 24). It can be seen that the ion generation efficiency is better than that.

  In an ion generation system using a voltage application type corona discharge, there is a case where the ozone concentration is increased at the same time as the ion concentration is increased. Although the above-described ion generating element is not an exception, in the operation of the discharge electrodes 1a and 1b and the induction electrode 3, the electric field concentration between the surfaces is prevented and the current value between the electrodes is suppressed (capacitance between the electrodes). It is known to prevent it by reducing the coupling).

  Next, the static eliminator of this invention is demonstrated based on FIGS. Regarding the specific configuration of the ion generator of the present invention, the following description of the static eliminator can be referred to.

  13 is a perspective view showing an embodiment of the static eliminator of the present invention, FIG. 14 is a perspective view showing an example of an ion generating element having a desorption configuration, and FIG. 15 is a configuration diagram showing an example of the ion generating element of FIG. 16 is a perspective view showing another embodiment of the static eliminator of the present invention, FIG. 17 is a perspective view showing another embodiment of the static eliminator of the present invention, and FIG. 18 is another example of an ion generating element having a desorption configuration. FIG. 19 is a configuration diagram showing an example of the ion generating element of FIG. 18, and FIG. 20 is a graph showing the static elimination characteristics of the static eliminator according to the present invention.

  FIG. 13 shows a static eliminator 10 that includes the ion generator of the present invention that generates ions by the ion generating element 1 and performs static elimination with the generated ions.

  The static eliminator 10 is provided with an ion generating element 1 and a propeller fan 11 which is a sending means for sending out ions generated by the ion generating element 1. The power supply unit is not shown. In addition, the static eliminator 10 is preferably provided with an adjusting means for adjusting the ion concentration.

  Various configurations, such as the size, form, number of ion generating elements 1 to be arranged, the delivery capability of the propeller fan 11, and the like, are appropriately set according to the purpose of use, installation location, and the like. The static eliminator 10 shown in FIG. 13 is classified as a fan-type static eliminator that uses a propeller fan 11 as an ion delivery means.

  In the present embodiment, four ion generating elements 1 are provided in the vicinity of the outer periphery of the propeller fan 11 at the rotation angle of 90 ° with the center of the propeller fan 11 as a base point, and the generated propeller fan 11 is used to efficiently deliver the generated ions. It has the structure arrange | positioned in the front surface. The means for attaching the ion generating element 1 to the static eliminator 10 is preferably provided with the ion generating element 1 in the airflow of the propeller fan 11 so that the generated ions can be efficiently delivered, and the attachment portion is provided outside the airflow. . An example of the attaching / detaching means is attachment by attachment to the electrode socket 12 as shown in FIG. In this case, if the electrode socket 12 is provided on the outer peripheral edge portion under the airflow of the propeller fan 11, the mounting portion does not block the airflow.

  In the static eliminator 10, the plurality of ion generating elements 1 are arranged such that the positive ion generating surface and the negative ion generating surface are not in the same space (arranged so that the same polar surfaces face each other). In some cases, the best static elimination performance is obtained. As shown in FIG. 20, in the case of the example (1) in which positive ions and negative ions exist in the same space, the ion balance gradually loses the ion balance as the distance from the ion generation unit increases. The negative voltage attenuation greatly exceeded the positive voltage attenuation. On the other hand, in the case of the example (2) in which the ion generating elements 1 are arranged so that the same polar surfaces face each other, a good ion balance is obtained even at a point 60 cm away, and the same charge removal time is obtained.

  As a specific example of installing the positive ion generation surface and the negative ion generation surface so as not to be in the same space, for example, in FIG. 13, the upper surface sides of the upper two ion generation elements 1 are respectively positive ion generation surfaces ( The surface having the discharge electrode 1a) and the lower surfaces of the two lower ion generating elements 1 may be the positive ion generating surfaces (surfaces having the discharge electrode 1a). Further, in FIG. 16, the right ion side of the upper ion generating element 1 and the upper surface side of the right ion generating element 1 are respectively positive ion generating surfaces (surfaces having the discharge electrodes 1 a), and the lower ion generating element 1. The left surface side and the lower surface side of the left ion generating element 1 may each be a positive ion generating surface (surface having the discharge electrode 1a).

  As shown in FIG. 14, the ion generating element 1 is configured to be detachable by being attached to the electrode socket 12, thereby improving maintenance that facilitates replacement and removal and cleaning. As the detachable ion generating element 1, for example, FIG. 15 {(a) represents the front surface A side, (b) represents a cross section, and (c) represents the rear surface B side. } Can be adopted. 14 and 15, 13 is a discharge electrode contact, and 14 is an induction electrode contact.

  The arrangement position of the ion generating element 1 is not limited to the configuration shown in FIG. 13, and for example, another configuration as shown in FIG. 16 can be adopted. The static eliminator 10 shown in FIG. 16 is provided in a state where the front side is covered with four finger guards 15 radially from a position near the central axis of the propeller fan 11.

  The static eliminator of the present invention is not limited to the fan-type static eliminator shown in FIGS. 13 and 16, and for example, a configuration as shown in FIG. 17 can be adopted. The static eliminator 10 shown in FIG. 17 is classified as a bar-type static eliminator that uses compressed air as ion delivery means.

  That is, at least one ion generating element 1... Is arranged on a straight line, and compressed air blowout openings 16 are provided at equal intervals on both sides with the ion generating element 1. The ions generated by the ion generating elements 1... Are sent far away by the air flow rate.

  The ion generating element 1 used for the static eliminator 10 shown in FIG. 16 and FIG. 17 has a desorption direction shown in FIG. 18 because the mounting direction to the static eliminator 10 is different from the static eliminator 10 shown in FIG. 19 has the configuration shown.

  In the static eliminator of the present invention as shown in FIGS. 13, 16, and 17, the ion generating element 1 can be efficiently arranged inside the air flow, so that the sending by the air flow is performed very efficiently. The delivery means such as the propeller fan 11 may be configured separately from the static eliminator of the present invention, and the delivery means such as a publicly known blower used for this type of static eliminator is arranged separately. You may set up.

  In the static eliminator of the present invention, also for simplification of maintenance, if the ion generating element 1 has a detachable configuration using the electrode socket 12 as in the examples of FIGS. Maintainability is improved.

  Since the ion generating element 1 used in the static eliminator 10 of the present invention can be driven at a low voltage as described above, the risk is reduced, so that ions are generated on the front surface or the surface side of the static eliminator 10. It is also possible to adopt a structure in which the element 1 is exposed. By adopting a structure in which the ion generating element 1 is exposed, not only replacement and cleaning at the time of maintenance are easy, but also the structural material that blocks generated ions is reduced, and the ion generation efficiency is further improved.

  Next, the ion generation ratio (ion balance) according to the air flow direction and the ion generating element arrangement angle in the ion generator of the present invention will be described.

  The ion generator of the present invention is an ion generator that sends out ions generated by arranging at least one ion generating element that generates positive ions and negative ions in an air flow environment of an air flow sending means, The ion generating element has a configuration in which one or both of a surface for generating positive ions and a surface for generating negative ions are arranged with a variable angle with respect to the airflow direction.

  FIG. 1A to FIG. 1E are explanatory side views for explaining the air flow direction (arrows a and b) of the ion generator of the present invention and the arrangement angle of the ion generating element 1.

  An ion generating element 1 used in the present embodiment shown in FIG. 1 has a discharge electrode 1a that generates positive ions on a surface A of a plate-like dielectric 2 having two surfaces A and B. The back surface B has a discharge electrode 1b for generating negative ions, and one induction electrode 3 is disposed inside the dielectric 2 so as to face the discharge electrodes 1a and 1b. The induction electrode 3 receives both actions of the discharge electrodes 1a and 1b in common, and is surrounded by the dielectric 2, that is, embedded / embedded in the dielectric 2. The airflow (arrows a and b) is sent out by sending means (not shown).

  FIG. 1A shows an air current a so that both surfaces of a front surface A having a discharge electrode 1a generating positive ions and a back surface B having a discharge electrode 1b generating negative ions are in an equal air flow environment. A state in which the both surfaces (the front surface A and the back surface B) are arranged on both sides orthogonal to the direction of b are arranged at an angle along the airflow direction, that is, the plate-like dielectric 2 is aligned along the airflow direction. The aspect arrange | positioned in the direction is shown. In the case of this aspect, since the front surface A and the back surface B are under an equal amount of airflow environment, positive ions = negative ions, and both ions are delivered in a balanced manner. As described above, since it is known that there is a difference in energy required for generating positive ions and negative ions, it is preferable to correct in advance in order to make the amounts equal.

  FIG. 1 (b) shows an aspect in which the ion generating element 1 is disposed at a different angle so that the front surface A having the discharge electrode 1a that generates positive ions is in a larger airflow environment than the rear surface B. . In the case of this aspect, since the front surface A is in a larger airflow environment than the back surface B, positive ions> negative ions, and more positive ions are sent than negative ions.

  (C) of FIG. 1 shows the aspect which changed the arrangement | positioning angle of the ion generating element 1 so that the back surface B which has the discharge electrode 1b which generate | occur | produces a negative ion may be in more airflow environments than the surface A. . In the case of this aspect, since the back surface B is under more airflow environment than the front surface A, positive ions <negative ions, and more negative ions are sent than positive ions.

  FIG. 1D shows an arrangement angle of the ion generating element 1 so that the surface A having the discharge electrode 1a for generating positive ions is directed in the airflow direction so that the entire surface A is in an airflow environment. A mode in which the plate-like dielectric 2 is changed in a direction perpendicular to the airflow direction is shown. In the case of this aspect, since the entire surface A is exposed to an airflow environment, most of the positive ions are sent out. On the other hand, most of the negative ions generated on the back side of the dielectric 2 that is a shadow of the air flow are not sent out by the air flow but remain on the back side of the dielectric 2 and some negative ions that have flowed out under the air flow. Since ions are also easily neutralized with some of the positive ions that are sent out by the air flow, only a few negative ions are sent out.

  (E) of FIG. 1 shows the arrangement angle of the ion generating element 1 so that the back surface B having the discharge electrode 1b for generating negative ions is directed in the airflow direction so that the entire back surface B is in an airflow environment. A mode in which the plate-like dielectric 2 is changed in a direction perpendicular to the airflow direction is shown. In the case of this aspect, since the entire surface of the back surface B is exposed to an airflow environment, many negative ions are sent out. On the other hand, most of the positive ions generated on the back side of the dielectric 2 that is a shadow of the air flow are not sent out by the air flow but remain on the back side of the dielectric 2 and some of the positive ions that flow out under the air flow are retained. Since the ions are also easily neutralized with some of the negative ions sent out by the air flow, only a few positive ions are sent out.

  Various configurations can be used as the configuration in which the ion generating element 1 is arranged in a variable angle in the air flow environment of the ion generator. For example, (1) the ion generating element 1 is rotatably attached to an attachment member such as a shaft body, or (2) a plurality of attachment parts having different angles are provided, and the ion generating element 1 is attached to an attachment part having a desired angle. (3) The attachment member to which the ion generating element 1 is attached has a rotatable structure, and the attachment member to which the ion generating element 1 is attached can be rotated to a desired angle. . The variable angle may be multistage or stepless, but a configuration that can be adjusted steplessly is preferable.

  The present invention in which the angle of the ion generating element is variable with respect to the airflow is not limited to the ion generating element 1 that generates both ions on both surfaces (front surface A and back surface B) of one dielectric 3, but ions that generate positive ions. An ion generating element in which a generating element and an ion generating element that generates negative ions are combined into one package, that is, an ion generating element (see FIG. 24) in which two ion generating elements are arranged in pairs on the same plane, and positive ions The present invention can also be applied to a device in which an ion generating element that generates negative ions and an ion generating element that generates negative ions are separate.

When attached to the ion generating element 1 to be rotatable, the measured ion concentration change with respect to the angle, changes in ion concentration was observed in accordance with the angle as shown in FIG. 2 1, can control the ion balance Met. In addition, as a result of measuring the static elimination characteristic at a point similarly 10cm from the ion generating element, it was possible to control the neutralization properties according to the angle as shown in FIG 2.

  When the angle of the ion generating element 1 is adjusted, it is preferable to take a method of adjusting the angle while securing the accuracy by sensing the ion generation state or the like in an application where the accuracy of ion balance is required.

Explanatory side view for explaining the air flow direction of the ion generator of the present invention and the arrangement angle of the ion generating element The block diagram which shows one Example of the ion generating element used for this invention Circuit diagram as above The block diagram which shows the other Example of the ion generating element used for this invention The perspective view and sectional drawing which show the structural example of the ion generating element used for this invention The perspective view and sectional drawing which show the other structural example of the ion generating element used for this invention Plane view and sectional view showing an example of arrangement of the discharge electrode and the induction electrode on the dielectric Plane view and sectional view showing an example of arrangement of the discharge electrode and the induction electrode on the dielectric Plane view and sectional view showing an example of arrangement of the discharge electrode and the induction electrode on the dielectric Explanatory drawing showing an example of the protrusion shape of the discharge electrode Explanatory drawing showing an example of the shape of the induction electrode Comparison diagram of ion concentration of ion generator that generates both ions on both sides of one package ion generator and one dielectric The perspective view which shows one Example of the static eliminator of this invention The perspective view which shows an example of the ion generating element which has a desorption structure The block diagram which shows an example of the ion generating element of FIG. The perspective view which shows the other Example of the static eliminator of this invention The perspective view which shows the other Example of the static eliminator of this invention The perspective view which shows the other example of the ion generating element which has a desorption structure. The block diagram which shows an example of the ion generating element of FIG. The graph which shows the static elimination characteristic of the static eliminator which concerns on this invention Graph showing ion concentration change with angle of ion generating element Graph showing the change in static elimination time depending on the angle of the ion generating element Explanatory drawing which shows an example of the conventional ion generating element which produces | generates a positive ion and a negative ion by turns alternately with one ion generating element. Explanatory drawing which shows an example of the conventional ion generating element which makes two ion generating elements into one package, and generates a positive ion and a negative ion simultaneously.

Claims (6)

An ion generator for delivering ions generated by arranging at least one ion generating element for generating positive ions and negative ions in an air flow environment of an air flow sending means, wherein the ion generating element generates positive ions. An ion generator characterized in that a surface for generating and a surface for generating negative ions are arranged so as to be variable in angle with respect to the airflow direction. The ion generating element includes a dielectric having at least two surfaces, at least two discharge electrodes disposed on at least two surfaces of the dielectric, and the at least two discharge electrodes disposed inside the dielectric. The ion generator according to claim 1, further comprising an induction electrode that receives an action of the discharge electrode, wherein positive ions and negative ions are generated on different surfaces of the dielectric. The said dielectric material is a plate-shaped material which has a surface and a back surface, It is the structure which a positive ion generate | occur | produces from any one surface, and a negative ion generate | occur | produces from the other surface. Ion generator. 4. The ion generator according to claim 2, wherein the number of the induction electrodes is one. The ion generator according to claim 1, wherein the ion generating element includes an ion generating element that generates positive ions and an ion generating element that generates negative ions. Discharger, characterized in that the arrangement for discharge by the ion generator according to any one of claims 1-5.

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