JP4751434B2 - Ion generator, electrical equipment - Google Patents

Description

  The present invention includes an ion generating element, an ion generating device, and an ion generating device capable of decomposing bacteria, fungi, harmful substances, etc. floating in the air by releasing positive ions and negative ions into the space. It relates to electrical equipment. In addition, as an example applicable to the above-mentioned electrical equipment, it is mainly a closed space (inside a house, one room in a building, a hospital room or operating room, a car, an airplane, a ship, a warehouse, a refrigerator, etc.) And air conditioners, dehumidifiers, humidifiers, air purifiers, refrigerators, fan heaters, microwave ovens, washing / drying machines, vacuum cleaners, sterilizers, and the like.

  In general, in a sealed room with little ventilation, such as an office or a meeting room, if there are many people in the room, air pollutants exhausted by breathing, cigarette smoke, dust, and other air pollutants increase. The negative ions, which have the effect of relaxing, decrease from the air. In particular, when tobacco smoke is present, the negative ions may be reduced to about 1/2 to 1/5 of the normal amount. Therefore, various ion generators have been commercially available in order to supply negative ions in the air.

  However, the conventional ion generator using the discharge phenomenon generates negative ions mainly by a negative potential direct current high voltage method, and its purpose is to promote a relaxing effect. Therefore, in such an ion generator, negative ions can be replenished in the air, but airborne bacteria and the like in the air cannot be positively removed.

  Regarding other ion generators, the results of investigating actual examples from past publications are as follows.

  Patent Document 1 describes an ion generator that generates negative ions or generates negative ions and positive ions by applying an alternating high voltage to a discharge plate having a discharge line or an acute angle portion. However, the generation method and means are only described as an AC high voltage unit. The field of use is air conditioners, and the effects are comfort and relaxation for people.

  In Patent Document 2, a high-voltage power source that sandwiches an insulator, forms a pair of electrodes with a discharge electrode and a dielectric electrode, and applies a high-frequency and high-frequency voltage to both ends thereof is provided. A high-voltage power supply is described that diodes are arranged at both ends of an electrode, and a negative-potential power supply or a positive-potential power supply is selected depending on the orientation thereof, but the switching function is not described. The field of application of the present technology is described as a corona discharge device such as an ozone generator, a charging device, or an ion generator, and the effect of the present technology includes generation of ions.

  In Patent Document 3, a large number of electrodes each having a pair of needle-like discharge electrodes and conductive ground grids or ground rings are arranged two-dimensionally in a direction crossing the flow of clean air. A biased high voltage of AC sine wave is applied to a certain discharge electrode, and a positive biased high voltage of AC sine wave is applied to a discharge electrode. A discharge electrode is formed. It has a control means to adjust the bias voltage, and adjusts the amount of positive ions and negative ions. As a field of use, there is a charge removal equipment in a clean room.

    In Patent Document 4, it is described that the applied voltage is variable by a power source for positive electrode discharge and negative electrode discharge. The electrode is an ionization line and a dust collector, and is configured to be charged to dust and collected on the dust collector. The field of use is an electric dust collector for air conditioners, and it is specified that the inside is sterilized by ozone generated during discharge.

  The types of ion generating electrodes using the discharge phenomenon are roughly classified into two types. One of them is a metal wire or a sharp metal plate as in Patent Documents 1, 3, and 4, and the opposite electrode is ground, or a ground potential metal plate or grid is used. Air serves as an insulator. The other is one in which a discharge electrode and an induction electrode sandwiching a solid dielectric are formed as in Patent Document 2 and Patent Documents 5 and 6 described later. As its feature, since the former uses air as an insulator, it is necessary to increase the distance between the electrodes as compared with the latter. Therefore, it is necessary to set a high voltage necessary for discharge. Conversely, the latter has a high insulation resistance and an insulator having a high dielectric constant, so that the distance between the electrodes can be made narrow (thin), and therefore the applied voltage is lower than the former. Can be set.

Relates to an ion generating apparatus, positive ions, as an effect of releasing the bipolar ion negative ions, and H ⁺ (H ₂ O) m is a positive ion in the air, O ₂ is negative ion ^- (H ₂ O) By generating approximately the same amount of n (m and n are natural numbers), both ions surround the airborne fungi and viruses in the air, and the action of hydroxyl radicals (.OH) of the active species generated at that time Thus, an invention relating to an ion generator capable of inactivating the above-mentioned floating molds and the like was made (for example, see Patent Documents 5 and 6).

  The above-described invention has already been put into practical use by the applicant of the present application. The practical machine includes an ion generator having a structure in which a discharge electrode is disposed outside and a induction electrode is disposed on the inside, with a ceramic dielectric interposed therebetween, and this There are air cleaners and air conditioners equipped with.

In addition, the effect of negative ions is to supply a large amount of negative ions to a space where there is an excess of positive ions in electrical appliances at home, etc., and to balance positive and negative ions like in a forest in nature. It is known that it is effective when it is desired to obtain a relaxed state or when a relaxation effect is required. Patent Document 1 also describes the relaxation effect.
JP-A-4-90428 JP-A-8-217412 JP-A-3-230499 JP-A-9-610 JP 2003-47651 A JP 2002-319472 A

  An object of the present invention is to generate positive ions and negative ions to inactivate fungi and viruses floating in the air, and to improve the effect. In general, an ion generator using a discharge phenomenon usually generates ozone together with the generation of ions, and Patent Document 4 describes that sterilization of equipment is performed by utilizing the oxidation ability of ozone. ing. It is generally known that ozone has an effect on the human body when its concentration increases, and it is difficult for the applicant of the present application to extract the maximum amount of ions while minimizing the amount of ozone generated. It is a high issue.

  In addition, the applicant of the present application has applied for Patent Documents 5 and 6 in a small ion generator that can be mounted on a household electric appliance, not the equipment apparatus that is targeted by Patent Document 3, and the ion generator If used, almost the same amount of positive ions and negative ions can be generated.

  In order to reduce neutralization of positive ions and negative ions generated at the same time, it is common to diffuse ions in the air by blowing air. However, there has been a problem that by generating positive ions and negative ions at the same time, some of the ions with both polarities are neutralized and disappeared. In Patent Document 3, a large number of discharge electrodes are two-dimensionally spread in a direction crossing the flow of clean air. That is, the wind is flowing in the direction in which the needle extends. Considering reduction of applied voltage for miniaturization and safety and energy saving, the applicant of the present application is configured to form a pair of electrodes with a discharge electrode provided on the surface of the dielectric and an induction electrode embedded in the dielectric. However, in this case, the wind direction of Patent Document 3 described above is unsuitable for ion diffusion, and therefore wind is applied in parallel to the surface of the dielectric. When the developed ion generator is mounted on various products, it is effective to limit the direction of the wind with respect to the ion generator to an ideal direction.

  In view of the above problems, the present invention examines measures for suppressing neutralization of generated ions and effectively releasing them, an ion generating element, an ion generating apparatus, and an ion generating device capable of further improving ion generation efficiency An object of the present invention is to provide an electrical device provided with

  An ion generating element according to the present invention is an ion generating element including a positive discharge part that generates positive ions and a negative discharge part that generates negative ions, and the positive discharge part and the negative discharge part are on the same plane. And it has arrange | positioned at predetermined intervals which can ensure the insulation between both discharge parts.

  Moreover, in the ion generating element based on this invention, the predetermined space | interval which is the distance which can ensure the said insulation was 8 mm or more, It is characterized by the above-mentioned.

  Moreover, in the ion generating element based on this invention, the discharge part which comprises the said ion generating element consists of needle-shaped electrodes, It is characterized by the above-mentioned.

  In addition, when the electric apparatus according to the present invention is configured to include any one of the ion generating elements having the above-described configuration, and a sending unit (such as a fan) for sending ions generated by the ion generating element into the air. Good. By adopting such a configuration, in addition to the original function of the device, it is possible to change the amount of ions in the air and the ion balance with the mounted ion generating element, and to bring the indoor environment into a desired atmosphere state.

  An ion generating element according to the present invention includes the above-described ion generating element and a voltage applying circuit connected to the ion generating element, and the voltage applying circuit biases an AC impulse voltage to the plus discharge portion to be plus. Positive ions are generated by applying a voltage waveform, and negative ions are generated by applying a voltage waveform in which an AC impulse voltage is negatively biased to a negative discharge portion.

  In the ion generating element according to the present invention and the electric apparatus equipped with the ion generating element, it is possible to effectively release into the air while outputting both positive ions and negative ions. As an example, the measured values are generated in the method of the present invention by the combination of the electrode of FIG. 8 and the circuits of FIGS. 5, 12, and 13, compared to the conventional method of generating positive ions and negative ions from the same electrode. The amount of ozone to be generated was minimized as compared with the conventional method, and the generated ions were increased and released. Therefore, the effect of inactivating fungi and viruses in the air by both positive ions and negative ions can be further enhanced.

  The ion generator according to the present invention suppresses generation and disappearance of generated positive ions and negative ions in the vicinity of the electrode of the ion generating element, and effectively discharges the generated bipolar ions to the space. Rather than using a single ion generating element to generate positive ions and negative ions alternately at a predetermined cycle, multiple ion generating elements generate positive ions and negative ions individually and release them independently into the room. This is a configuration that adopts a method (hereinafter referred to as an ion independent emission method).

  Prior to the adoption of the ion independent emission method, the following basic experiment was conducted. In addition, as a form of the ion generating element used in this experiment, a configuration using a needle-like electrode may be used, but here, a discharge electrode provided on the surface of the dielectric and an induction electrode embedded in the dielectric Consider a configuration in which a pair of electrodes is formed.

  FIG. 1 is a schematic diagram showing an example of a basic experiment of the ion independent discharge method according to the present invention. (A1) of this figure is an external view of an ion generating element, (a2) is a sectional view of the ion generating element, (a3) is a waveform of voltage applied between the discharge electrode and the induction electrode, (a4) and (b) to (d) ) Is a measurement condition diagram, and (e) is an arrangement example of ion generating elements.

  First, in this experiment, the ion generating element 1 shown in FIGS. (A1) and (a2) is used, and an AC impulse voltage (this figure (a3)) is applied between the discharge electrode 0a and the induction electrode 0b. When ions and negative ions are alternately generated in a predetermined cycle (this diagram (a4)), only the negative ions are generated by applying a waveform in which the AC impulse voltage is negatively biased using the same ion generating element 1. In this case, the amount of released ions was measured in each case (not shown), and the difference between each was verified. As a result, the total detected amount of positive ions and negative ions in the former was only about 50 to 60% of the detected amount of negative ions in the latter.

  Next, paying attention to the above results, two ion generating elements 1a and 1b identical to the above were arranged, and the total ion emission amount was measured when only positive ions and only negative ions were individually generated (this book) (B) to (d)).

  As a result, the total detected amount of positive ions and negative ions obtained under the measurement conditions in FIG. 5B is the positive ions obtained when the ion release amount is measured separately using the two ion generating elements described above. The value was almost equal to the total value of the detected amount and the detected negative ion amount. From this, it was found that an ion generating element adopting an ion independent emission method is effective instead of a method in which positive ions and negative ions are alternately generated with a predetermined cycle by a single ion generating element.

  By the way, in this figure (b), the arrangement | sequence of the 1st discharge part (ion generating element 1a) and the 2nd discharge part (ion generating element 1b) is arrange | positioned in the direction orthogonal to the ventilation from the fan 2. Thus, the air flow that has passed over one ion generating element does not pass over the other ion generating element.

  On the other hand, as shown in FIGS. 7C and 7D, the arrangement of 90 degrees is changed from FIG. 9B, and the arrangement of the ion generating element 1a and the ion generating element 1b is parallel to the air blown from the fan 2. When arranged in the direction, it was confirmed that the amount of ions generated in the discharge part located on the windward attenuates. More specifically, in this figure (c), since positive ions generated in the leeward ion generating element 1a pass over the leeward ion generating element 1b, the positive ions are at a negative potential of the ion generating element 1b. Neutralized and the amount of positive ions was attenuated. Similarly, in this figure (d), the negative ion of the windward ion generating element 1b was attenuated. From this fact, it was found that even if the ion independent emission method is adopted, ions are not effectively released depending on the arrangement of the discharge part, one of the ions is attenuated, and the emission balance of positive ions and negative ions is lost.

  Here, the measurement of the ions is actually measured using an ion counter 3 using a gel diene double cylinder type, and the concentration [number / cc] at the measurement point is obtained as the actual measurement value. Since the magnitude of the ion concentration obtained at the same conditions and at the same measurement point is measured, the high and low concentration is expressed in the text as having a large amount of ions.

  When the ion generator is mounted inside the device, the air blown from the device is generated at the windward discharge part, regardless of the direction of the X-axis direction or Y-axis direction with respect to the discharge electrode surface on the dielectric. In order to prevent ions from being neutralized on the discharge part having the reverse polarity in the leeward direction, the ion generating elements 1a and 1b are arranged diagonally, that is, obliquely with respect to the direction of the air flow X-axis or Y-axis. It is desirable to reduce the neutralization (see FIG. 1 (e)). However, since it is disadvantageous in terms of area, it is desirable not to arrange it diagonally when the air blowing direction is determined.

  In addition, a basic experiment was conducted to investigate the relationship between the distance between the discharge electrode between the discharge electrode that generates positive ions and the discharge electrode that generates negative ions, and the neutralization amount of both generated ions. FIG. 6 is a schematic diagram showing another basic experiment example of the ion independent discharge method according to the present invention. (A) of this figure is an electrode arrangement on the front side of the film electrode, (b) is an electrode arrangement on the back side of the film electrode, (c) is a waveform of voltage applied between the discharge electrode and the induction electrode, and (d) is a measurement condition. FIG.

  In FIG. 6, 60 is a film electrode in which two electrodes are formed on each of the front side surface and the back side surface by printing and etching copper on a polyimide film. On the front side surface, as shown in FIG. 6A, discharge electrodes 61a and 62a having a lattice shape in a substantially rectangular shape are formed at positions spaced apart from each other by a distance d between the discharge electrodes. As shown in FIG. 6B, the substantially rectangular solid induction electrodes 61b and 62b are formed at positions facing the discharge electrodes 61a and 62a. The induction electrodes 61b and 62b are formed smaller inside the discharge electrodes 61a and 62a in order to prevent abnormal discharge from occurring at the ends of the discharge electrodes 61a and 62a.

  Further, a portion indicated by a black circle provided on each electrode is a solder pad 63, and a high voltage is applied to each electrode via a lead wire or the like soldered thereto to generate a discharge. An alternating impulse voltage having an alternating vibration attenuation waveform shown in FIG. 6C is applied between the discharge electrode 61a and the induction electrode 61b while being positively biased, and the same alternating impulse voltage is negative between the discharge electrode 62a and the induction electrode 62b. Biased and applied. As a result, positive ions are generated from the discharge electrode 61a, and negative ions are generated from the discharge electrode 62a. The peak value Vop of the first wave of the applied AC impulse voltage is about 3 kV.

  Then, a plurality of film electrodes 60 having different discharge electrode distances d are manufactured, and each film electrode 60 is placed between the fan 2 and the ion counter 3 as shown in FIG. Then, the ion concentration of both positive and negative ions generated by applying a waveform biased positively and negatively to the AC impulse voltage was measured. The measurement was performed for three types of cases where only positive ions were generated, only negative ions were generated, and both positive and negative ions were generated simultaneously. At this time, the distance between the ion generating element 60 and the ion counter 3 is 25 cm, and both are arranged at an upper position 4.5 cm from the measurement table.

  FIG. 7 shows the measurement result. The temperature at the time of measurement was 27 ° C., and the humidity was 27%. From this measurement result, it was found that when the distance d between the discharge electrodes is 5 mm or more, no spark (spark discharge) occurs between the discharge electrodes 61a and 62a. In the case where the distance d between the discharge electrodes is 8 mm, the number of ions when both positive ions and negative ions are generated is equal to the number of ions when both ions are generated simultaneously. From this, it was found that neutralization of the generated positive and negative ions can be prevented if the distance d between the discharge electrodes is 8 mm or more under the conditions of the film electrode used in this measurement. A larger inter-discharge electrode distance d is advantageous for preventing sparks and preventing neutralization of both ions. However, if the inter-discharge electrode distance d is increased, the size of the ion generating element also increases. It is considered to be good. Note that the film electrode used in this measurement was prepared by changing the distance d between the discharge electrodes when the sample was manufactured, and the distance d between the discharge electrodes was secured by etching. The end surfaces of the discharge electrodes facing each other are in a state where copper is exposed. Therefore, in the actual electrode described below, it can be estimated that the distance d between the discharge electrodes can be further reduced due to the presence of the coating layer.

  As shown in FIG. 1 (e), from the result of the basic experiment described above that it is desirable to dispose the ion generating elements 1a and 1b diagonally, that is, diagonally and to reduce the neutralization thereof, FIG. 2 shows a first embodiment that embodies the above. FIG. 2 is a schematic configuration diagram showing a first embodiment of an ion generator according to the present invention, and FIGS. 2A and 2B schematically show a plan view and a side view of the ion generator, respectively. Yes.

  As shown in this figure, an ion generator according to the present invention includes an ion generating element 10 having a plurality of discharge units (two in this embodiment) for generating ions, and a predetermined voltage with respect to the ion generating element 10. And a voltage applying circuit 20 for applying voltage.

  The ion generating element 10 includes a dielectric 11 (upper dielectric 11a and lower dielectric 11b) and a first discharge unit 12 (discharge electrode 12a, induction electrode 12b, discharge electrode contact 12c, induction electrode contact 12d, connection terminal 12e, 12f and connection paths 12g and 12h), the second discharge section 13 (discharge electrode 13a, induction electrode 13b, discharge electrode contact 13c, induction electrode contact 13d, connection terminals 13e and 13f, and connection paths 13g and 13h), A coating layer 14, and a voltage described later is applied between the first discharge electrode 12a and the induction electrode 12b and between the second discharge electrode 13a and the induction electrode 13b. , 13a is discharged to generate positive ions and negative ions, respectively.

  The dielectric 11 is formed by bonding an approximately rectangular parallelepiped upper dielectric 11a and a lower dielectric 11b (for example, 15 [mm] in length × 37 [mm] in width × 0.45 [mm] in thickness). If an inorganic substance is selected as the material of the dielectric 11, ceramics such as high-purity alumina, crystallized glass, forsterite, and steatite can be used. In addition, if an organic material is selected as the material of the dielectric 11, a resin such as polyimide or glass epoxy having excellent oxidation resistance is suitable. However, in view of corrosion resistance, it is desirable to select an inorganic material as the material of the dielectric 11, and it is preferable to form using ceramic in view of formability and ease of electrode formation described later. .

  In addition, since it is desirable that the insulation resistance between the discharge electrodes 12a and 13a and the induction electrodes 12b and 13b is uniform, the material of the dielectric 11 is such that the density variation is small and the insulation rate is uniform. Is preferred.

  The shape of the dielectric 11 may be other than a substantially rectangular parallelepiped (such as a disk, an ellipse, or a polygon), and may be a cylinder, but considering productivity. As in the present embodiment, it is preferable to have a flat plate shape (including a disk shape and a rectangular parallelepiped shape).

  The first and second discharge parts 12 and 13 are arranged diagonally (diagonally) with respect to the shape of the dielectric 11 of the base material so that they are not aligned with each other. Expressed more functionally, the first and second discharge units 12 and 13 are arranged in the direction of the air flow, regardless of which direction the air flow is sent to the ion generating element 10 of the present embodiment. Is arranged so that the air flow that has passed over one discharge part does not pass over the other discharge part. By adopting such a configuration, it is possible to perform efficient and well-balanced ion emission by making use of the effect of the ion independent emission method and suppressing the attenuation of ions generated in both the discharge portions 12 and 13.

  The discharge electrodes 12a and 13a are formed integrally with the upper dielectric 11a on the surface of the upper dielectric 11a. As a material for the discharge electrodes 12a and 13a, any material can be used without particular limitation as long as it has conductivity, such as tungsten. However, it does not cause deformation such as melting by discharge.

  The induction electrodes 12b and 13b are provided in parallel with the discharge electrodes 12a and 13a with the upper dielectric 11a interposed therebetween. With this arrangement, the distance between the discharge electrodes 12a and 13a and the induction electrodes 12b and 13b (hereinafter referred to as the interelectrode distance) can be made constant, so that the insulation resistance between the two electrodes can be made uniform. It is possible to stabilize the discharge state and suitably generate positive ions and / or negative ions. In the case where the dielectric 11 is cylindrical, the discharge electrodes 12a and 13a are provided on the outer peripheral surface of the cylinder, and the induction electrodes 12b and 13b are provided in an axial shape so that the distance between the electrodes is constant. Can do.

  As the material of the induction electrodes 12b and 13b, as in the case of the discharge electrodes 12a and 13a, any material having conductivity, such as tungsten, can be used without any particular limitation. The condition is not to wake up.

  The discharge electrode contacts 12c, 13c are connected to the discharge electrodes 12a, 13e through the connection terminals 12e, 13e and the connection paths 12g, 13g provided on the same formation surface as the discharge electrodes 12a, 13a (that is, the surface of the upper dielectric 11a). It is electrically connected to 13a. Therefore, if one end of a lead wire (such as a copper wire or an aluminum wire) is connected to the discharge electrode contacts 12c and 13c and the other end of the lead wire is connected to the voltage application circuit 20, the discharge electrodes 12a and 13a and the voltage application circuit are connected. 20 can be made electrically conductive.

  The induction electrode contacts 12d and 13d are connected to the induction electrodes 12b and 13f via the connection terminals 12f and 13f and the connection paths 12h and 13h provided on the same formation surface as the induction electrodes 12b and 13b (that is, the surface of the lower dielectric 11b). It is electrically connected to 13b. Accordingly, if one end of a lead wire (such as a copper wire or an aluminum wire) is connected to the induction electrode contacts 12d and 13d and the other end of the lead wire is connected to the voltage application circuit 20, the induction electrodes 12b and 13b and the voltage application circuit are connected. 20 can be made electrically conductive.

  Furthermore, discharge electrode contacts 12c and 13c and induction electrode contacts 12d and 13d are all surfaces other than the surface of dielectric 11 where discharge electrodes 12a and 13a are provided (hereinafter referred to as the upper surface of dielectric 11). It is desirable to provide in. With such a configuration, unnecessary lead wires or the like are not provided on the upper surface of the dielectric 11, so that the air flow from the fan (not shown) is hardly disturbed, and the effect of the independent ion generation method according to the present invention is maximized. This is because it is possible to exert it to the limit.

  Considering the above, in the ion generator 10 of the present embodiment, the discharge electrode contacts 12c and 13c and the induction electrode contacts 12d and 13d are all surfaces facing the upper surface of the dielectric 11 (hereinafter referred to as the dielectric 11). (Referred to as the lower surface).

  In the ion generating element 10 of the present embodiment, the first discharge electrode 12a and the second discharge electrode 13a have an acute angle portion, and an electric field is concentrated at the portion to cause local discharge. Of course, as long as the electric field can be concentrated, a pattern other than the electrodes shown in this figure may be used. Hereinafter, FIG. 3 and FIG.

  FIG. 3 is a schematic plan view showing a second embodiment of the ion generator according to the present invention. The structure of the cross-sectional view may be considered to be the same as FIG. FIG. 3 shows an embodiment in which the first and second discharge sites are not arranged diagonally with respect to the shape of the dielectric material 11 of the base material due to area constraints.

  The first discharge electrode 12a is classified into a first discharge portion 12j that causes electric field concentration to cause discharge, a first conductive portion 12k that surrounds or partially surrounds the first discharge portion 12j, and the connection terminal portion 12e described above. Are all on the same pattern, and the applied voltages are equal. Similarly, the second discharge electrode 13a includes a second discharge portion 13j, a second conductive portion 13k, and a connection terminal portion 12e.

  In the first discharge part 12j, positive ions are generated at a positive potential, but a second discharge part 13j having a negative potential is present immediately adjacent to the first discharge part 12j.

  The feature here is that the first and second conductive portions 12k and 13k surrounding the periphery or part of the first and second discharge portions 12j and 13j that cause discharge are arranged. As described above, since the first conductive portion 12k having the same voltage as the first discharge portion 12j surrounds or surrounds the first discharge portion 12j, the positive ions generated from the first discharge portion 12j have a reverse polarity. Before reaching the second discharge site 13j having a negative potential, it is possible to mitigate rebound from the first conductive site 12k having a positive potential and reaching the second discharge site 13j. The same applies to the second discharge site 13k. In the case of the blowing direction in which the generated ions are hardly neutralized or the distance between the first discharge electrode 12a and the second discharge electrode 13a, the first conductive portion 12k and the second conductive portion 13k, which are the above-described characteristic portions, are set. It does not matter if it is not provided.

  FIG. 4 is a schematic plan view showing a third embodiment of the ion generator according to the present invention. The structure of the cross-sectional view may be considered to be the same as FIG. The ion generators shown in FIGS. (A) and (b) have the characteristics of the second embodiment described above, and are arranged diagonally with respect to the shape of the dielectric material 11 as described above. Is. As described above, the shape of the electrode may be a needle-like electrode, but basically a pair of a discharge electrode provided on the surface of the dielectric and an induction electrode embedded in the dielectric. The case where the electrode of this is formed is described.

  As the fourth embodiment of the present invention, the first discharge electrode 12a, the first induction electrode 12b, the second discharge electrode 13a, and the second discharge electrode in the ion generators of FIGS. When the arrangement of the induction electrode 13b on the dielectric 11 is considered, they are adjacent to each other with a distance that can secure insulation between the first and second electrodes. The first discharge electrode 12a and the second discharge electrode 13a having the smallest potential difference between the electrodes are adjacent to each other with a distance that can ensure insulation. In other words, the electrodes having the smallest potential difference are adjacent to each other with a distance that can ensure insulation. The potential difference and waveform are described below.

  Moreover, the electrode shape of FIG.2, FIG.3, FIG.4 is an example, and an electrode shape like FIGS. 8-11 may be sufficient. 8 to 11 are schematic plan views showing fifth to eighth embodiments of the ion generator according to the present invention. 8 to 11, the same parts as those in FIG. 3 are denoted by the same reference numerals, and the description thereof is omitted. Further, the structure of the cross-sectional view may be considered to be the same as FIG.

  The ion generator 10 shown in FIG. 8 is a device in which the size of each electrode is reduced so that the first discharge electrode 12a and the second discharge electrode 13a do not get too close to the end face, and the ion generator shown in FIG. Reference numeral 10 represents a reduction in the number of first discharge electrodes 12a and second discharge electrodes 13a of the ion generator 10 shown in FIG. 8 in order to adjust the discharge location. Moreover, the ion generator 10 shown in FIG. 10, FIG. 11 WHEREIN: In order to adjust a discharge location, the shape of the 1st discharge electrode 12a of the ion generator 10 shown in FIG. 9 and the 2nd discharge electrode 13a is FIG. This is close to the image of the first discharge electrode 12a and the second discharge electrode 13a of the ion generator 10 shown in FIG.

  Next, the configuration and operation of the voltage application circuit 20 will be described.

  FIG. 5 is a circuit diagram showing an embodiment of the voltage application circuit 20. First, the voltage application circuit 20 shown in FIG. The voltage application circuit 20 shown in the figure includes an input power supply 201, an input resistor 204, a rectifier diode 206, a transformer driving switching element 212, a capacitor 211, and a diode 207 as a primary side drive circuit. When the input power source 201 is an AC commercial power source, the capacitor 211 is charged by the voltage of the input power source 201 via the input resistor 204 and the rectifier diode 206. When the voltage exceeds the specified voltage, the transformer driving switching element 212 is turned on. A voltage is applied to the primary side winding 202a of the transformer 202. Immediately after that, the energy charged in the capacitor 211 is discharged through the primary side winding 202a of the transformer 202 and the switching element 212 for driving the transformer, the voltage of the capacitor 211 returns to zero, is charged again, and is charged and discharged at a specified cycle. repeat. In the above description, the transformer driving switching element 212 is a description that employs a gateless two-terminal thyristor (Sidac [Shindengen product]), but a slightly different circuit is used to replace the thyristor (SCR). It may be used. Further, even if the input power source 201 is a DC power source, it does not matter if it is a circuit that can obtain the same operation as described above. That is, the primary side drive circuit of this circuit is not particularly limited, and any circuit that can obtain the same operation may be used.

  As a secondary side circuit of the transformer 202, two secondary windings 202b and 202c of the transformer 202 are provided, and these are the first discharges of any of FIGS. 2, 3, 4, and 8 to 11, respectively. The electrode 12a, the first induction electrode 12b, the second discharge electrode 13a, and the second induction electrode 13b are connected. When the transformer driving switching element 212 of the primary side circuit is turned on, the primary side energy is transmitted to the secondary windings 202b and 202c of the transformer, and an impulse voltage is generated. Not only the secondary winding 202b of the transformer 202 but also the cathode of the diode 209 is connected to the first discharge electrode 12a, and the anode of the diode 209 is connected to the ground or one side of the input power source 201 (reference) via the resistor 205. Potential). When the input power source 201 is an AC commercial power source, since one side of the input AC commercial power source is grounded in Japan, an electric device without a ground terminal can obtain the same function if connected to one side of the input power source 201. . Even if the outlet is inserted in the opposite direction, it is the same that only 100V is applied and grounded. Further, the resistor 205 is for protection, and even if it is not present (even if it is short-circuited), there is no problem in operation. The second discharge electrode 13a is connected not only to the secondary winding 202c of the transformer but also to the anode of the diode 208. The cathode of the diode 208 is connected to the ground or one side of the input power source 201 via the resistor 205. Connected.

  Next, the voltage application circuit 20 having another configuration shown in FIG. The description of the primary side circuit of the transformer 202 is the same as described above. As a secondary circuit of the transformer 202, the secondary winding of the transformer 202 includes two parts 202b and 202c, which are the first discharge electrode 12a, the first induction electrode 12b, and the second of FIG. The discharge electrode 13a and the second induction electrode 13b are connected. Not only the secondary winding 202b of the transformer 202 but also the cathode of the diode 209 and the anode of the diode 210 are connected to the first discharge electrode 12a, and the anode of the diode 209 is connected to one selection terminal 203a of the switching relay 203. The cathode of the diode 210 is connected to another selection terminal 203 b of the switching relay 203. The common terminal 203 c of the switching relay 203 is connected to the ground or one side of the input power source 201 through the resistor 205.

  Next, the operating voltage waveform will be described. An impulse waveform of an alternating voltage as shown in FIG. 5C is applied to both ends of the secondary windings 202b and 202c of the transformer 202. The directions of the diode 209 and the diode 208 connected to the secondary windings 202b and 202c are reverse as described above, and the first discharge electrode 12a, the first induction electrode 12b, the second discharge electrode 13a, The voltage waveform when the voltage of the second induction electrode 13b is based on the ground terminal and, in some cases, one side of the input power source 201 (the reference potential: the side to which the diodes 208 and 209 are connected) is shown in FIG. ), (F), and (g), the waveforms in FIG. 5 (c) are respectively positively and negatively biased waveforms.

  In the embodiment shown in FIG. 5A, the first discharge electrode 12a and the first induction electrode 12b are ground terminals, and in some cases, one side of the input power supply 201 (reference potential: the side to which the diodes 208 and 209 are connected. ) Are both positive, the generated negative ions are neutralized on the discharge electrode 12a, and the positive ions are repelled and released. Further, the second discharge electrode 13a and the second induction electrode 13b are ground terminals, and in some cases, the potentials viewed from one side of the input power source 201 (reference potential: the side to which the diodes 208 and 209 are connected) are negative. And negative ions are released.

  In the embodiment shown in FIG. 5B, the first discharge electrode 12a and the first induction electrode 12b are ground terminals when the switching relay 203 is on the selection terminal 203a side. Both of the potentials viewed with reference to one side (reference potential: the side to which the diodes 208 and 209 are connected) are positive, and positive ions are generated. Further, when the switching relay 203 is on the selection terminal 203b side, both the potentials viewed from the ground terminal, and in some cases, one side of the input power source 201 (reference potential: the side to which the diodes 208 and 209 are connected) are negative. , Negative ions are generated. The second discharge electrode 13a and the second induction electrode 13b are ground terminals, and in some cases, the potential viewed from one side of the input power supply 201 (reference potential: the side to which the diodes 208 and 209 are connected) is negative. , Negative ions are generated.

The positive ion is H ⁺ (H ₂ O) m, and the negative ion is O ₂ ⁻ (H ₂ O) n (m and n are natural numbers, meaning that a plurality of H ₂ O molecules are attached). It is.

Thus, when the selection terminal of the switching relay 203 is on the 203a side, the ions generated from the first discharge unit 12 become positive ions, and the negative ions generated from the second discharge unit 13 are plus and minus approximately the same. A quantity of ions is generated. H ⁺ (H ₂ O) m and O ₂ in the air ^- by approximately the same amount releasing (H ₂ O) n, these ions surrounds around the floating mold bacteria and viruses in the air, generated when the Can be inactivated by the action of the hydroxyl radical (.OH) of the activated species.

The above description will be described in detail. By applying an AC voltage between the electrodes constituting the first and second discharge parts 12 and 13, oxygen or moisture in the air is ionized by receiving energy by ionization, and H ⁺ (H ₂ O) m ( M is an ion mainly composed of an arbitrary natural number) and O ₂ ⁻ (H ₂ O) n (n is an arbitrary natural number), and these are released into the space by a fan or the like. These H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n adhere to the surface of the floating bacteria and chemically react to generate H ₂ O ₂ or (.OH) as an active species. Since H ₂ O ₂ or (.OH) exhibits extremely strong activity, they can surround and inactivate airborne bacteria in the air. Here, (.OH) is one kind of active species, and represents radical OH.

Positive and negative ions undergo a chemical reaction on the cell surface of the floating bacteria as shown in the formulas (1) to (3) to generate hydrogen peroxide H ₂ O ₂ or hydroxyl radical (.OH) as active species. Here, in Formula (1)-Formula (3), m, m ', n, and n' are arbitrary natural numbers. Thereby, floating bacteria are destroyed by the action of decomposing active species. Therefore, airborne bacteria in the air can be inactivated and removed efficiently.

_{^{H + (H 2 O) m}} + O 2 chromatography _{(H 2 O) n → ·} OH + 1 / 2O 2 + (m + n) H 2 O ... (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 chromatography _{(H 2 O) n + O} 2 chromatography _{(H 2 O) n' →} 2 · OH + O 2 + (m + m '+ n + n' ) H ₂ O… (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 over _{(H 2 O) n + O} 2 over _{(H 2 O) n' →} H 2 O 2 + O 2 + (m + m '+ n + n ') H ₂ O… (3)
By the above mechanism, the inactivation effect of floating bacteria and the like can be obtained by the release of the positive and negative ions.

Further, since the above formulas (1) to (3) can cause the same action even on the surface of harmful substances in the air, hydrogen peroxide H ₂ O ₂ or hydroxyl radical (.OH) which is an active species. However, by oxidizing or decomposing toxic substances and converting chemical substances such as formaldehyde and ammonia into innocuous substances such as carbon dioxide, water and nitrogen, it is possible to make them substantially harmless.

  Therefore, by driving the blower fan, positive ions and negative ions generated by the ion generating element 1 can be sent out of the main body. And by the action of these positive ions and negative ions, it is possible to inactivate mold and fungi in the air and suppress their growth.

  In addition, positive ions and negative ions have a function to inactivate viruses such as Coxsackie virus and polio virus, and can prevent contamination due to contamination of these viruses.

  In addition, it has been confirmed that positive ions and negative ions have a function of decomposing molecules that cause odors, and can be used to deodorize spaces.

  When the selection terminal of the switching relay 203 is on the 203b side, ions generated from the first discharge unit 12 become negative ions, and negative ions generated from the second discharge unit 13 cause negative ions from both electrodes. appear. When a large amount of negative ions is supplied to a space where there is an excess of positive ions due to electrical appliances in the home, etc., and you want to achieve a positive and negative ion balance like in a forest in the natural world, or a relaxation effect It is effective when requesting.

  Further, the voltage application circuit 20 applies an alternating voltage waveform starting from a positive polarity between the first discharge electrode 12a and the first induction electrode 12b shown in any of FIGS. 2 to 4 and FIGS. In addition to the configuration shown in FIG. 5, for example, FIG. 12 and FIG. 13 may be used instead of the configuration shown in FIG. 5 because the alternating voltage waveform starting from the negative polarity may be applied between the second discharge electrode 13a and the second induction electrode 13b. It is possible to adopt the configuration shown in FIG.

  FIG. 12 shows a configuration in which the circuit of FIG. 5B is cheaper and the number of parts is reduced. For the sake of convenience of explanation, the same parts as those in the embodiment shown in FIG. The voltage application circuit 20 shown in FIG. 12 includes an input power supply 201, an input resistor 204, a rectifier diode 206, a transformer drive switching element 212, a capacitor 211, and a flywheel diode 213 as a primary side drive circuit. . When the input power source 201 is an AC commercial power source, the capacitor 211 is charged by the voltage of the input power source 201 via the input resistor 204 and the rectifier diode 206. When the voltage exceeds the specified voltage, the transformer driving switching element 212 is turned on. A voltage is applied to the primary side winding 202a of the transformer 202. Immediately after that, the energy charged in the capacitor 211 is discharged through the transformer driving switching element 212 and the primary winding 202a of the transformer 202, the voltage of the capacitor 211 returns to zero, is charged again, and is charged / discharged at a specified cycle. repeat.

  As a secondary side circuit of the transformer 202, two secondary windings 202b and 202c of the transformer 202 are provided, and these are the first discharges of any of FIGS. 2, 3, 4, and 8 to 11, respectively. The electrode 12a, the first induction electrode 12b, the second discharge electrode 13a, and the second induction electrode 13b are connected. When the transformer driving switching element 212 of the primary side circuit is turned on, the primary side energy is transmitted to the secondary windings 202b and 202c of the transformer, and an impulse voltage is generated. In addition, each secondary winding and each electrode are the polarity of the voltage applied between the 1st discharge electrode 12a and the 1st induction electrode 12b, the 2nd discharge electrode 13a, the 2nd induction electrode 13b, Are connected so that the polarity of the voltage applied between them is reversed.

  The first discharge electrode 12 a is connected not only to the secondary winding 202 b of the transformer 202 but also to the cathode of the diode 209, and the anode of the diode 209 is connected to the ground or one side of the input power source 201 via the relay 214. (Line AC2: reference potential). When the input power source 201 is an AC commercial power source, since one side of the input AC commercial power source is grounded in Japan, an electric device without a ground terminal can obtain the same function if connected to one side of the input power source 201. . Further, not only the secondary winding 202c of the transformer 202 but also the anode of the diode 208 is connected to the second discharge electrode 13a, and the cathode of the diode 208 is connected to the ground or one side (line AC2) of the input power source 201. Is done.

  Next, the operating voltage waveform will be described. An impulse waveform of an alternating voltage is applied to both ends of the secondary windings 202b and 202c of the transformer 202. At this time, the voltage waveform of the first induction electrode 12b viewed from the first discharge electrode 12a becomes an alternating voltage waveform starting from a positive polarity as shown in FIG. 14A, and the second discharge electrode 13a. As shown in FIG. 14B, the voltage waveform of the second induction electrode 13b viewed from the reference is an alternating voltage waveform starting from a negative polarity.

Further, since the secondary winding 202c is connected to the line AC2 (possibly a ground terminal) via the diode 208 in the forward direction, the voltage waveform of the second discharge electrode 13a viewed from the line AC2 as a reference. As shown in FIG. 15A, and the voltage waveform of the second induction electrode 13b is a waveform obtained by negatively biasing the waveform of FIG. 14B as shown in FIG. 15B. Accordingly, negative ions are generated from the second discharge part 13. The negative ion is O ₂ ⁻ (H ₂ O) n (n is a natural number and means that a plurality of H ₂ O molecules are attached).

On the other hand, since the secondary winding 202b is connected to the line AC2 via the diode 209 in the reverse direction when the relay 214 is on, the first discharge electrode viewed from the line AC2 is used as a reference. The voltage waveform of 12a is as shown in FIG. 16 (a), and the voltage waveform of the first induction electrode 12b is as shown in FIG. 16 (b). The waveform of FIG. 14 (a) is positively biased. It becomes a waveform. Accordingly, the first discharge unit 12 generates approximately the same amount of positive ions as the negative ions generated in the second discharge unit 13. The positive ion is H ⁺ (H ₂ O) m (m is a natural number and means that a plurality of H ₂ O molecules are attached).

  FIG. 17 (a) shows the waveform shown in FIG. 14 with the time axis changed, and FIG. 17 (b) shows the waveform shown in FIG. 16 with the time axis changed. The voltage waveform applied to each electrode is an impulse waveform that attenuates in such a short time. This is due to the effect of the flywheel diode 213 and the electric vibration attenuation due to the inductance and resistance of the transformer and the capacitance of the electrode. Is due to. That is, by circulating the current flowing through the voltage induced in the primary winding 202a by the current flowing through the secondary windings 202b and 202c through the primary winding 202a, the flywheel diode 213, and the transformer driving switching element 212, The voltage oscillation generated in the secondary windings 202b and 202c is rapidly attenuated.

  FIG. 18A is a waveform diagram showing voltage waveforms of the first discharge electrode 12a and the second discharge electrode 13a with reference to the line AC2 when the relay 214 is on. a), which is the same as FIG. FIG. 18B is a waveform diagram showing voltage waveforms of the first discharge electrode 12a and the second discharge electrode 13a viewed from the line AC2 when the relay 214 is off. When the relay 214 is on, as shown in FIG. 18A, the voltage waveform of the first discharge electrode 12a indicated by the line L1 is biased to the plus side, and the second discharge electrode 13a indicated by the line L2 The voltage waveform is biased to the negative side. When the relay 214 is off, as shown in FIG. 18B, the voltage waveform of the second discharge electrode 13a indicated by the line L2 is biased to the negative side and does not change, but the line L1 The voltage waveform of the first discharge electrode 12a indicated by is changed to an alternating waveform without being biased. This is because when the relay 214 is turned off, the secondary winding 202b is in a floating state, and the first wave is a negative waveform and the second and subsequent waves are alternating. Both ions are released in small quantities.

  Accordingly, when the relay 214 is off, a small amount of positive ions and negative ions generated from the first discharge unit 12 and a large amount of negative ions generated from the second discharge unit 13 as a whole are a small amount of positive ions and a large amount. The negative ions become rich in negative ions. On the other hand, when the relay 214 is on, the positive ions generated from the first discharge unit 12 and the negative ions generated from the second discharge unit 13 are in a state where positive and negative ions of the same amount are generated.

_{^{Therefore, H + (H 2 O)}} m and O ₂ in the air ^- by approximately the same amount releasing (H ² O) n, these ions surrounds around the floating mold bacteria and viruses in the air, its In cases where the state of inactivation due to the action of hydroxyl radicals (.OH) of active species generated is required, a large amount of negative ions is supplied to the space where there are excessive positive ions in household electrical equipment, etc. By switching the relay 214 on / off, it is possible to switch between when the positive and negative ion balance is desired as in the forest of the forest and when the relaxation effect is obtained.

  Further, the transformer 202 shown in FIG. 12 has a winding arrangement as shown in FIG. FIG. 19 is a layout diagram showing the component layout of the ion generator on which the transformer 202 shown in FIG. 12 is mounted. In FIG. 19, reference numeral 220 denotes an electrode panel portion on which each discharge electrode (not shown) is formed, 221 denotes an electrode frame for fixing the electrode panel portion 220, 222 denotes a molding material, 223 denotes a transformer 202 to be fixed. A substrate 224 on which circuit components are mounted is a circuit component mounting portion on which input / output connectors and other circuit components are mounted.

  The transformer 202 has a configuration in which secondary windings 202b and 202c are arranged on both sides of the primary winding 202a. When the winding arrangement of the transformer 202 is made in this way, the distance between the secondary windings 202b and 202c is secured, and the magnetic field generated in one secondary winding directly affects the other secondary winding. The impact can be reduced. Therefore, fluctuations in the voltage generated in each secondary winding due to the influence of each other's magnetic field are reduced, and ion generation from the ion generating element to which the voltage generated from each secondary winding is applied. It is possible to prevent the amount from fluctuating.

  FIG. 13 is a circuit diagram showing still another embodiment of the voltage application circuit 20. For convenience of explanation, the same parts as those in the embodiment shown in FIG. The voltage application circuit 20 shown in FIG. 13 differs from the voltage application circuit 20 shown in FIG. 12 in that instead of the single transformer 202 and the flywheel diode 213, the two transformers 215 and 216 and their respective primary windings. The point is that two flywheel diodes 217 and 218 connected to the line are used. Further, the positions of the transformer driving switching element 212 and the capacitor 211 as the primary side driving circuit are switched.

  When the input power supply 201 is an AC commercial power supply, the capacitor 211 is charged by the voltage of the input power supply 201 via the input resistor 204, the rectifier diode 206, and the flywheel diodes 217 and 218. The switching element 212 is turned on, and a voltage is applied to the series circuit of the primary side winding 215a of the transformer 215 and the primary side winding 216a of the transformer 216. Immediately thereafter, the energy charged in the capacitor 211 is discharged through a series circuit of the transformer driving switching element 212, the primary side winding 215a of the transformer 215, and the primary side winding 216a of the transformer 216, and the voltage of the capacitor 211 is It returns to zero, is charged again, and is repeatedly charged and discharged at a specified period.

  The secondary windings 215b and 216b as the secondary side circuits of the transformers 215 and 216 are respectively the first discharge electrode 12a and the first induction electrode in any of FIGS. 2, 3, 4, and 8 to 11. 12b, the second discharge electrode 13a, and the second induction electrode 13b. When the transformer driving switching element 212 of the primary side circuit is turned on, the primary side energy is transmitted to the secondary winding 215b and the secondary winding 216b, and an impulse voltage is generated. In addition, each secondary winding and each electrode are the polarity of the voltage applied between the 1st discharge electrode 12a and the 1st induction electrode 12b, the 2nd discharge electrode 13a, the 2nd induction electrode 13b, Are connected so that the polarity of the voltage applied between them is reversed.

  The first discharge electrode 12 a is connected not only to the secondary winding 215 b of the transformer 215 but also to the cathode of the diode 209, and the anode of the diode 209 is connected to the ground or one side of the input power supply 201 via the relay 214. (Line AC2). Further, not only the secondary winding 216b of the transformer 216 but also the anode of the diode 208 is connected to the second discharge electrode 13a, and the cathode of the diode 208 is connected to the ground or one side of the input power source 201 (line AC2). Is done.

  The operating voltage waveform of the voltage applying circuit 20 shown in FIG. 13 having the above configuration is the same as the operating voltage waveform (FIGS. 14 to 17) of the voltage applying circuit 20 shown in FIG. A characteristic point of the voltage application circuit 20 shown in FIG. 13 is that a transformer 215 that applies a voltage between the first discharge electrode 12a and the first induction electrode 12b, a second discharge electrode 13a, and a second induction electrode. The transformer 216 for applying a voltage to the transformer 13b is made independent from each other, and flywheel diodes 217 and 218 are provided in the primary windings of the transformers, respectively.

  In this way, the current flowing due to the voltage induced in the primary winding 215a due to the current flowing in the secondary winding 215b only circulates through the primary winding 215a and the flywheel diode 217, thus affecting the transformer 216. There is nothing. Similarly, the current flowing due to the voltage induced in the primary winding 216a due to the current flowing in the secondary winding 216b only circulates through the primary winding 216a and the flywheel diode 218, thus affecting the transformer 215. There is nothing. Therefore, even if a load change occurs in one discharge part, the change does not affect the voltage applied to the other discharge part, and the amount of ions generated from the other discharge part is prevented from changing. can do.

  In the voltage application circuit 20 shown in FIG. 13, the primary winding 215a of the transformer 215 and the primary winding 216a of the transformer 216 are connected in series, but the circuit configuration is such that these are connected in parallel. Is also possible.

  Further, the transformers 215 and 216 shown in FIG. 13 are configured in a winding arrangement as shown in FIG. FIG. 20 is a layout diagram showing a component layout of the ion generator on which the transformers 215 and 216 shown in FIG. 13 are mounted. For convenience of explanation, the same parts as those in FIG. In FIG. 20, 220 is an electrode panel section on which each electrode for discharge (not shown) is formed, 221 is an electrode frame for fixing the electrode panel section 220, 222 is a molding material, 223 is a transformer 215, 216 is fixed. In addition, a substrate 224 on which circuit components are mounted is a circuit component mounting portion on which input / output connectors and other circuit components are mounted.

  The transformers 215 and 216 are arranged such that the secondary winding 216b, the primary winding 216a, the primary winding 215a, and the secondary winding 215b are arranged in this order. If the transformers 215 and 216 are arranged in this way, the distance between the secondary windings 216b and 215b is secured, and the magnetic field generated in one secondary winding directly affects the other secondary winding. Can be reduced. Therefore, fluctuations in the voltage generated in each secondary winding due to the influence of each other's magnetic field are reduced, and ion generation from the ion generating element to which the voltage generated from each secondary winding is applied. It is possible to prevent the amount from fluctuating.

  The transformer driving switching element 212 shown in FIG. 12 and FIG. 13 is a description using a gateless two-terminal thyristor (Sidac [Shindengen product]) in the above description, but a slightly different circuit. A thyristor (SCR) may be used. Further, even if the input power source 201 is a DC power source, it does not matter if it is a circuit that can obtain the same operation as described above. That is, the primary side drive circuit of this circuit is not particularly limited, and any circuit that can obtain the same operation may be used.

  Moreover, in order to suppress the neutralization of the generated ions and effectively release the ion generating element regardless of whether the ion generating element is blown from the X-axis direction or the Y-axis direction with respect to the base material, the ion generating element of the above embodiment is used. At least one first discharge part that generates positive ions to be attached or printed on one substrate and second discharge part that generates negative ions, and Both of the discharge portions may be arranged on the same plane of the base material and on the diagonal line (diagonal) separately and independently. The electrode at this time may be a needle-like electrode, or a discharge electrode provided on the surface of the dielectric and an induction electrode buried in the dielectric may form a pair of electrodes. At that time, even if the blown air is blown from either the X-axis direction or the Y-axis direction with respect to the surface of the discharge electrode on the dielectric, ions generated from the windward discharge part are neutralized on the discharge part of the reverse polarity of the windward side. In order to prevent this, the first discharge part and the second discharge part are arranged diagonally, that is, obliquely with respect to the air blowing direction (X-axis or Y-axis direction) to reduce neutralization thereof. Can do.

  In addition, when there is a restriction on the area of the substrate on which the first discharge part and the second discharge part are attached or printed, the above-described in order to ensure the insulation distance between the first discharge part and the second discharge part There may be a case where it is difficult to dispose such a diagonal line (obliquely). In this case, for example, a first conductive part having the same voltage as the first discharge part surrounding the first discharge part that generates positive ions is arranged, and the second discharge part that generates negative ions is also provided. The same configuration may be adopted, and the first conductive portion and the second conductive portion may be opposed to each other on the same plane. The ions released from the first discharge site are repelled by the first conductive site of the same voltage surrounding the first discharge site and discharged with the wind before being neutralized to the reverse potential of the second discharge site. The same applies to the second discharge site. As the electrodes at this time, at least one electrode of the discharge part may be a needle-like electrode, or a pair of electrodes including a discharge electrode provided on the surface of the dielectric and an induction electrode embedded in the dielectric It is good also as composition which constitutes.

  Further, the ion generating element has at least one first discharge part that generates positive ions attached or printed on one base material, and one second discharge part that generates negative ions. The first and second discharge parts are the first and second discharge electrodes provided on the surface of the dielectric as the base material, and the first and second inductions embedded in the dielectric. Each of the electrodes may be formed as a pair, and may be arranged separately from each other on the same plane of the substrate. According to this configuration, it is possible to suppress neutralization of ions generated compared to a method in which positive ions and negative ions are alternately generated at a predetermined cycle by a single ion generating element.

  When the first discharge electrode and the second discharge electrode are arranged so that the first discharge electrode and the second discharge electrode are spaced apart from each other, a spark is generated between the first and second discharge electrodes. (Spark discharge) can be prevented from occurring and reliability can be improved, and neutralization between the generated ions can be further suppressed.

  The ion generator has a configuration in which a pair of electrodes is formed by a discharge electrode provided on the surface of the dielectric and an induction electrode embedded in the dielectric, and the voltage application circuit includes the first discharge section and the second discharge section. In order to reduce the generation of ozone, the voltage waveform to be applied to the discharge part is not a general AC sine wave as in Patent Documents 2 and 3, but an AC impulse voltage may be applied to the ion generating element. Thereby, ozone can be suppressed to a low value while obtaining stable ion generation. Further, a positive ion is generated by applying a voltage waveform biased positively with an AC impulse voltage to the first discharge part, and a voltage waveform with the same voltage biased negatively is applied to the second discharge part. The negative ions may be generated.

  Furthermore, the voltage application circuit, for example, generates a positive ion by applying a voltage waveform in which an AC impulse voltage is positively biased to the first discharge part of the ion generating element, and a voltage in which the same voltage is negatively biased. A first voltage applying means and a switching means capable of switching the generation of only negative ions by applying a waveform, and biasing the AC impulse voltage to the second discharge portion of the ion generating element negatively A second voltage applying unit that generates negative ions by applying a voltage waveform, so that a configuration in which both positive and negative ions are generated and a state in which only negative ions are generated can be selected and switched. It is good. Depending on the use environment, situation, and purpose of use of the ion generator, the polarity type of ions generated automatically or manually can be switched. The purpose of generating positive ions and negative ions is to inactivate fungi and viruses that are floating in the air. To generate only negative ions, positive ions can be generated by household appliances. This is effective when it is desired to change the excessive state to a state in which ion balance is achieved, or when relaxation is required. These switching functions can be realized with one electrode and one ion generator. Further, by the operation of switching means such as a switching relay, it is possible to switch between the above effect and the effect of finding the adjustment or relaxation of the ion balance in the room with a single ion generating element or ion generating device.

  As a measure for realizing the above switching function at a lower cost and with a smaller number of parts, the voltage application circuit applies a voltage waveform in which an AC impulse voltage is positively biased to the first discharge portion of the ion generating element. A third voltage applying means and a bias switching means capable of switching between the case of generating positive ions and the case of generating positive ions and negative ions by applying an alternating voltage waveform without biasing the same voltage. And applying a voltage waveform in which the AC impulse voltage is negatively biased to the second discharge portion of the ion generating element, thereby having a second voltage applying means for generating negative ions, so that substantially the same amount is obtained. A state where both positive and negative ions are generated, and a small amount of positive ions and a large amount of negative ions are generated for the amount of positive ions. DOO selection, may be configured to switch. Depending on the use environment, situation, and purpose of use of the ion generator, the polarity type of ions generated automatically or manually can be switched. When generating approximately equal amounts of positive ions and negative ions, the purpose is to inactivate fungi and viruses floating in the air. When generating large amounts of negative ions, This is effective when it is desired to change the state of excessive positive ions in an electrical device or the like to a state in which ion balance is maintained, or when relaxation is required. These switching functions can be realized by one ion generator.

  The AC impulse voltage applied to the first discharge part is an alternating voltage waveform in which the voltage of the first induction electrode based on the first discharge electrode starts from a positive polarity, and is applied to the second discharge part. The AC impulse voltage to be generated is preferably an alternating voltage waveform in which the voltage of the second induction electrode based on the second discharge electrode starts from a negative polarity. In other words, the peak value of the first wave of the voltage of the first induction electrode with respect to the first discharge electrode is increased to the positive polarity side, and the voltage of the second induction electrode with reference to the second discharge electrode. The peak value of the first wave is increased to the negative polarity side.

  The voltage application circuit includes a first diode whose cathode is connected to a reference potential (= ground potential: described in the section of the embodiment), an anode connected to the second discharge electrode, and an anode connected to the reference potential. The cathode may include a second diode connected to the first discharge electrode, and whether or not the second diode is connected to the reference potential may be switched. As a result, the AC impulse voltage applied to the second discharge electrode is negatively biased, and the AC impulse voltage applied to the first discharge electrode is positively biased or an alternating voltage waveform without being biased. Can be selected.

  The voltage application circuit includes a first diode whose cathode is connected to the reference potential and an anode connected to the second discharge electrode, and an anode connected to the reference potential when generating positive ions from the first discharge unit. A second diode whose cathode is connected to the first discharge electrode, and when generating negative ions from the first discharge section, the cathode is connected to the reference potential and the anode is connected to the first discharge electrode. You may have a 3rd diode. Thereby, the AC impulse voltage applied to the second discharge electrode can be negatively biased, and the AC impulse voltage applied to the first discharge electrode can be biased positively or negatively.

  The voltage application circuit also applies a second impulse that applies an AC impulse voltage to the first secondary winding and the second discharge portion that apply an AC impulse voltage to the primary winding and the first discharge portion on the drive side. A first transformer including a secondary winding may be provided, and the first and second secondary windings of the first transformer may be disposed on both sides of the primary winding. As a result, the distance between the first and second secondary windings can be secured, and the influence of the magnetic field generated in one of the secondary windings directly on the other secondary winding can be reduced. it can.

  The voltage application circuit includes a second transformer including a primary winding on the driving side and a secondary winding for applying an AC impulse voltage to the first discharge unit, a primary winding on the driving side, and a second winding. And a third transformer comprising a secondary winding for applying an AC impulse voltage to the discharge section of the second transformer, a secondary winding of the second transformer, a primary winding of the second transformer, and a third transformer May be arranged in this order, and the secondary winding of the third transformer. A distance between the secondary winding of the second transformer and the secondary winding of the third transformer can be secured, and the magnetic field generated in one secondary winding is directly applied to the other secondary winding. Can be reduced.

  Furthermore, the primary winding of the second transformer and the primary winding of the third transformer may be connected in parallel. Since the voltages applied to the primary winding of the second transformer and the primary winding of the third transformer are equal, the characteristics of the second transformer and the third transformer are made equal, The absolute value of the AC impulse voltage applied to the first discharge part and the second discharge part can be made equal.

  Further, when the primary winding of the second transformer and the primary winding of the third transformer are connected in series, the primary winding of the second transformer and the primary winding of the third transformer Therefore, by making the characteristics of the second transformer and the third transformer equal, the absolute value of the AC impulse voltage applied to the first discharge part and the second discharge part can be obtained. Can be equal.

  In addition, when flywheel diodes are connected to the primary winding of the second transformer and the primary winding of the third transformer, the second current flows through the secondary winding of the second transformer. The current flowing due to the voltage induced in the primary winding of the transformer returns to the primary winding of the second transformer and the flywheel diode connected thereto, so that the third transformer is not affected. Similarly, the current flowing by the voltage induced in the primary winding of the third transformer by the current flowing in the secondary winding of the third transformer is connected to the primary winding of the third transformer and the current. Since the flywheel diode is recirculated, the second transformer is not affected. Therefore, even if a load change occurs in one discharge part, the change does not affect the voltage applied to the other discharge part, and the amount of ions generated from the other discharge part is prevented from changing. can do.

  In the ion generating element described above, the discharge electrode contact and the induction electrode contact for applying a predetermined voltage waveform to the discharge electrode and the induction electrode of the first and second discharge parts are dielectric surfaces, and discharge and generation You may arrange | position on the surface on the opposite side to a discharge electrode so that the performed ion may not be inhibited. The total number of contacts is four in total, the first and second, but the positional relationship is that the first discharge electrode contact and the second discharge electrode contact with the lowest potential difference are adjacent to each other with a certain distance. Therefore, the reliability is further improved.

  Similarly, the arrangement of the first discharge part and the second discharge part on the base material is configured such that the first discharge electrode and the second discharge electrode having the smallest potential difference are arranged at a certain distance. Reliability is improved.

The above-described ion generating element generates H ⁺ (H ₂ O) m as positive ions, O ₂ ⁻ (H ₂ O) n (m and n are natural numbers) as negative ions, and a plurality of H ₂ O molecules are present. It may be a configuration that generates Thus H ⁺ (H ₂ O) m and O ₂ in the air ^- by (H ₂ O) to generate substantially equal amounts of n, both ions are attached to the floating bacteria in the air or the like, generated when the It becomes possible to inactivate the floating bacteria by the action of the active species hydroxyl group radical (.OH).

  In addition, if it is set as an electric equipment provided with one of the above-mentioned ion generating elements and ion generating devices, and sending means (such as a fan) for sending ions generated by the ion generating elements or ion generating devices into the air, the device In addition to the original function, it is possible to change the amount of ions in the air and the ion balance with the installed ion generator, and to bring the indoor environment into a desired atmosphere state.

  For example, the above-described ion generating element or ion generating device is mounted on an electric device such as an air conditioner, a dehumidifier, a humidifier, an air purifier, a refrigerator, a fan heater, a microwave oven, a washing dryer, a vacuum cleaner, or a sterilizer. Good. In such an electric device, in addition to the original function of the device, the ion generation device and the ion balance in the air can be changed by the mounted ion generator, and the indoor environment can be brought into a desired atmosphere state.

  In the above embodiment, an example of a configuration in which positive ions and negative ions are individually generated by a single ion generating element having a plurality of discharge units that generate ions, and each is independently released into the room. However, the configuration of the present invention is not limited to this, and a configuration in which positive ions and negative ions are individually generated by a plurality of ion generating elements and each is independently released into the room. It does not matter.

These are the schematic diagrams which show the basic experiment example of the ion independent discharge system which concerns on this invention. FIG. 1 is a schematic view showing a first embodiment of an ion generator according to the present invention. These are the schematic diagrams which show 2nd Embodiment of the ion generator which concerns on this invention. These are the schematic diagrams which show 3rd Embodiment of the ion generator which concerns on this invention. FIG. 3 is a circuit diagram showing an embodiment of a voltage application circuit 20. These are the schematic diagrams which show the other basic experiment example of the ion independent discharge system which concerns on this invention. These are figures which show the experimental result of the other basic experiment example of the ion independent discharge system which concerns on this invention. These are the schematic diagrams which show 5th Embodiment of the ion generator which concerns on this invention. These are the schematic diagrams which show 6th Embodiment of the ion generator which concerns on this invention. These are the schematic diagrams which show 7th Embodiment of the ion generator which concerns on this invention. These are the schematic diagrams which show 8th Embodiment of the ion generator which concerns on this invention. These are circuit diagrams which show other embodiment of the voltage application circuit 20. FIG. These are the circuit diagrams which show other embodiment of the voltage application circuit 20. FIG. FIG. 14 is a waveform diagram showing operating voltage waveforms of the voltage application circuit 20 shown in FIGS. 12 and 13. These are waveform diagrams showing other operating voltage waveforms of the voltage application circuit 20 shown in FIGS. These are waveform diagrams showing other operating voltage waveforms of the voltage application circuit 20 shown in FIGS. These are waveform diagrams showing other operating voltage waveforms of the voltage application circuit 20 shown in FIGS. These are waveform diagrams showing other operating voltage waveforms of the voltage application circuit 20 shown in FIGS. [FIG. 13] is a layout diagram showing a component layout of an ion generator equipped with the transformer shown in FIG. 12. [FIG. 14] is a layout diagram showing a component layout of an ion generator equipped with the transformer shown in FIG. 13.

Explanation of symbols

0a discharge electrode 0b induction electrode 1, 1a, 1b ion generation element 2 fan 3 ion counter 10 ion generation element 11 dielectric 11a upper dielectric 11b lower dielectric 12, 13 first and second discharge parts 12a, 13a discharge electrode 12b , 13b Induction electrode 12c, 13c Discharge electrode contact 12d, 13d Induction electrode contact 12e, 13e Connection terminal 12f, 13f Connection terminal 12g, 13g Connection path 12h, 13h Connection path 12j, 13j Discharge area 12k, 13k Conductive area 14 Coating layer 20 Voltage application circuit 201 AC power supply

Claims (4)

An ion generating element having a positive discharge part for generating positive ions and a negative discharge part for generating negative ions,
One of the positive discharge part or the negative discharge part is a needle electrode, the other is a printed electrode,
An ion generating element characterized in that the positive discharge part and the negative discharge part are arranged on the same plane along the direction of air blowing and at a predetermined interval that can ensure insulation between the two discharge parts. An ion generating element having a positive discharge part for generating positive ions and a negative discharge part for generating negative ions,
  One of the positive discharge part or the negative discharge part is a needle electrode, the other is a printed electrode,
The positive discharge part and the negative discharge part surround the discharge part or a part thereof with a conductive part having the same voltage as the discharge part,
An ion generating element characterized in that the positive discharge part and the negative discharge part are arranged on the same plane along the direction of air blowing and at a predetermined interval that can ensure insulation between the two discharge parts. The ion generating element according to claim 1 or 2, characterized in that the insulation at predetermined intervals is a distance that can be secured, and the above 8 mm.   An electrical apparatus comprising: a sending means for sending ions generated by the ion generating element according to any one of claims 1 to 3 into the air.

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