JP6806399B1 - A device that generates at least one of ions and ozone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ion or ozone generator having high efficiency or low cost. SOLUTION: For example, a metal cylinder 50 having a first through hole, a metal rod 1 penetrating the first through hole, and a metal cylinder and a metal rod penetrating the first through hole are electrically connected to each other. The covering body 2 to be insulated, the first insulating plate B6 having the metal cylinder, the metal rod, and the second through hole through which the covering body penetrates, and the metal rod and the covering body penetrate through and are larger than the cross-sectional diameter of the covering body. It has a first metal plate 31 having a third through hole 19 having a through diameter. It is possible for each of the metal rod 1 and the metal cylinder 50, and the metal rod 1 and the metal plate 31 to generate corona discharges having different characteristics from each other. [Selection diagram] FIG. 19

Description

The present invention relates to an apparatus (hereinafter, may be simply referred to as an apparatus) that generates at least one of ions and ozone in relation to a corona discharge.

Charged fine particles existing in the atmosphere can be roughly divided into small ions generated by ionization of molecules and subsequent chemical reactions, and large ions formed by the small ions adhering to an electrically neutral aerosol. Corona discharge is known as one of the methods for efficiently generating negative negative ions (hereinafter, may be referred to as negative ions). The corona discharge causes, for example, a high voltage difference between the needle-shaped electrode and the flat plate electrode, and causes a corona discharge between them. Plasma is generated near the tip of the needle, and positive and negative ions are generated. If the high voltage applied to the needle electrode is negative, the positive ions are attracted by the electric field in the direction of the needle electrode. Negative ions are attracted toward the flat plate electrode. Some of these negative ions are released into the atmosphere. During corona discharge, not only positive and negative ions but also ozone (O3), which is a molecule composed of three oxygen atoms, is generated. The flow of negative ions is called ionic wind, and the flow of ozone is called ozone wind.

As a device for generating a corona discharge, for example, there is a configuration (FIG. 3A) disclosed in Patent Document 1. Disclosed is an apparatus in which a plurality of metal bodies attached to a plurality of metal plates are opposed to each other to generate a plurality of corona discharges (FIGS. 6 and 8) to generate at least one of ions and ozone. Various shapes (needle, pencil, triangular pyramid, quadrangular pyramid, or cylinder) of the metal body are disclosed.

As an apparatus for generating a corona discharge, for example, there are a plurality of configurations disclosed in Patent Document 2. A device for generating a corona discharge (FIGS. 1, 7, 9, and 10) by facing a metal body (needle) corresponding to a plurality of metal plates having a plurality of cavity patterns is disclosed. To. Further, an apparatus is disclosed in which a plurality of metal plates (blades) are opposed to each other to generate a corona discharge (FIG. 3). Further, an apparatus is disclosed in which a metal rod having a plurality of metal protrusions is inserted into a cylindrical metal having a cavity, the metal protrusions are opposed to each other in the cylinder, and a corona discharge (FIG. 5) is generated.

As an apparatus for generating a corona discharge, for example, there is a cylindrical configuration (FIGS. 14, 15, and 19) disclosed in Patent Document 3. A ground electrode member 42 having a discharge electrode 21, a circular ring portion 421 through which the discharge electrode 21 penetrates, and a shielding gas outflow passage 25 located in contact with the outer peripheral surface of the discharge electrode 21 are disclosed. Specifically, the cylindrical configuration is best understood from FIG. 19, along the longitudinal direction of the discharge electrode 21, the first circumferential chamber S1, the second stage circumferential chamber S2, the first gas reservoir 26. Are arranged in series, and the shield gas outflow passage 25 and the first gas reservoir 26 located on the inner peripheral side of the first gas reservoir 26 are arranged in a radially overlapping manner. The shield gas outflow passage 25 extends in a thin, long cylindrical shape along the outer circumference of the discharge electrode 21 from the intermediate portion in the longitudinal direction of the discharge electrode 21 to the tip 21b. Therefore, the clean gas passing through the shield gas outflow passage 25 is laminarized and flows downward through the central opening portion 207 toward the work in a state of surrounding the tip 21b of the discharge electrode 21. Therefore, it is disclosed that the sheath effect on the tip end 21b of the discharge electrode 21 is improved to improve the pollution prevention effect of the discharge electrode 21.

Japanese Unexamined Patent Publication No. 2016-225160 Japanese Patent No. 5773231 JP-A-2009-163949

Maintenance by reducing the amount of ion and / or ozone wind per unit area (or unit capacity), the directionality of the ion and / or ozone wind, and the amount of electrode contamination in order to improve the performance while aiming for miniaturization of the equipment. It is necessary to further enhance at least one of improvement of property and reduction of manufacturing cost.

Regarding the amount of ion wind, for example, in the configuration disclosed in Patent Document 1, the measurement graph of the amount of ions shown in FIG. 11 of Patent Document 1 is 0.7 × 10000 Ion / cm3.

Regarding the miniaturization of the device, for example, there is a demand to further reduce the size of the entire device including the size of the gap G5 in the Y direction shown by the configuration disclosed in FIG. 1 (D) of Patent Document 1 of about 5 mm. However, there is a problem that the shape of the metal plate, the cylinder, etc. constituting the positive electrode and the negative electrode, and the size of the entire device including the corona discharge region must be reduced. The reason for this is considered to be at least the "positional relationship between the anode and the cathode facing each other". Further, the cylindrical configuration disclosed in Patent Document 3 has a complicated structure and increases the number of parts, so that it is difficult to reduce the size and cost.

Regarding the improvement of maintainability, for example, there is a demand to reduce the amount of contamination of the first conductor 51A and the second conductor 51B shown by the configuration disclosed in FIG. 7 of Patent Document 2. However, the contaminants exposed to the corona discharge generated between the first conductor 51A / second conductor 51B and the electrode 50 are different depending on the direction of the ionic wind (wind flow to the left). It adheres to the conductor 51A of 1 and the conductor 51B of the second. This is because the first conductor 51A / the second conductor 51B is located leeward with respect to the corona discharge region. Therefore, it is difficult to reduce the contamination of the conductor. It is considered that one of the problems is that at least the "positional relationship between the anode and the cathode is opposite". Further, the cylindrical configuration that improves the sheath effect disclosed in Patent Document 3 and improves the pollution prevention effect of the discharge electrode 21 suppresses miniaturization and cost reduction.

One side surface of the apparatus for generating at least one of ions and ozone of the present invention is a first metal plate having a first through hole, a metal rod penetrating the first through hole, and at least the first. It is characterized by having an insulating material which is brought into close contact with the metal rod and is coated with the metal rod to maintain electrical insulation between the first metal plate and the metal rod at a portion penetrating the through hole of the metal rod. Further, one side surface of the apparatus for generating at least one of ions and ozone of the present invention is a metal cylinder having a first through hole, a metal rod penetrating the first through hole, and a first penetration. A cross section of a coating that penetrates the holes and electrically insulates the metal cylinder and the metal rod, a first insulating plate having a second through hole through which the metal cylinder, the metal rod, and the coating penetrates, and a cross section of the coating. It has a third through hole having a through diameter larger than the diameter, and is characterized by comprising a metal rod and a first metal plate through which the covering body penetrates the third through hole.

The cross-sectional view which simply illustrates the 1st Embodiment of this invention. Top view of FIG. The schematic diagram which shows the corona discharge of FIG. FIG. 5 is a cross-sectional view simply illustrating a second embodiment of the present invention. Top view of FIG. The schematic diagram which shows the corona discharge of FIG. The cross-sectional view which shows the 3rd Embodiment of this invention simply. The first characteristic diagram of the ozone amount related to FIG. A second characteristic diagram of the amount of ozone associated with FIG. 7. A third characteristic diagram of the amount of ozone associated with FIG. 7. A fourth characteristic diagram of the amount of ozone associated with FIG. 7. FIG. 5 is a cross-sectional view simply showing a fourth embodiment of the present invention. FIG. 8 is a plan view of the substrate B1 disclosed in FIG. FIG. 8 is a plan view of the substrate B2 disclosed in FIG. FIG. 8 is a plan view of the substrate B3 disclosed in FIG. FIG. 8 is a plan view of the substrate B4 disclosed in FIG. FIG. 8 is a plan view of the substrate B5 disclosed in FIG. FIG. 5 is a cross-sectional view simply showing a fifth embodiment of the present invention. FIG. 5 is a cross-sectional view simply illustrating a sixth embodiment of the present invention. A first example of the member 50 shown in the sixth embodiment of the present invention. A second example of the member 50 shown in the sixth embodiment of the present invention. A third example of the member 50 shown in the sixth embodiment of the present invention. FIG. 5 is a cross-sectional view simply showing a seventh embodiment of the present invention. FIG. 23 is a plan view of the substrate B10 disclosed in FIG. FIG. 23 is a plan view of the substrate B6 disclosed in FIG. FIG. 23 is a plan view of the substrate B7 disclosed in FIG. FIG. 23 is a plan view of the substrate B8 disclosed in FIG. FIG. 23 is a plan view of the substrate B9 disclosed in FIG. The table which simply shows the function and characteristic of the switch circuit 227 shown in the 7th Example of this invention.

1, FIG. 2 and FIG. 3 are cross-sectional views, plan views, and schematic views which simply exemplify the first embodiment of the present invention (a part of an apparatus mainly for generating ions).

In FIGS. 1 (cross-sectional view) and 2 (plan view), a metal rod 1 (Metal Rod), a covering body 2 (insulating film or Insulating material), and a metal plate 3 (first metal plate; Metal plate or). Metal substrate), through hole 12 (through hole) of the metal plate 3, resist 4 (first resist), insulating plate 5 (insulating plate), and insulating plate. The through hole 6 (third through hole) and the through hole 13 (second through hole) of each of the 5 are disclosed. The metal rod 1 (for example, tin-plated annealed copper wire) of the conductor is coated with the covering body 2 (for example, silicone rubber) which is an insulating material. That is, the covering body 2 is coated so as to be in close contact with the metal rod 1. At the tip of the metal rod 1 (position P2 side), the metal is exposed and serves as an electrode. As shown in FIG. 2, the metal rod 1 and the covering body 2 have an insulating plate 5 extending in the XY direction (for example, a glass fiber cloth impregnated with an epoxy resin and subjected to a thermosetting treatment to form a plate-like FR-4 (for example). It extends from position P1 to position P2 through the through hole 13 of Flame Retardant Type 4)). The positions P1 and P2 indicate the Z axis. The metal rod 1 and the covering body 2 further penetrate through the through hole 12 of the metal plate 3 of the conductor (for example, a metallizing pattern such as copper foil). The covering body 2 maintains electrical insulation between the metal rod 1 and the metal plate 3 at the portion of the through hole 12. The non-conductor (insulating material) resist 4, which is an insulator, covers the metal plate 3. The diameter of the through hole 13 is substantially equal to the diameter of the covering body 2 including the diameter of the metal rod 1. The metal plate 3 is circular with a through hole 12. The diameter of the through hole 12 is larger than the diameter of the through hole 13. The insulating plate 5 has a plurality of through holes 6 (for example, they are each circular). The plurality of through holes 6 are arranged in a circle around the metal rod 1 so as to surround the metal plate 3. Note that FIG. 1 is a cross section showing FIG. 2 as appropriate, which can be easily understood by the business operator.

In FIG. 3 (schematic diagram), the metal rod 1 of the conductor is a cathode to which a negative voltage (for example, minus 6,000 V) is supplied. The metal plate 3 is an anode to which a positive voltage (for example, ground voltage 0V; GND) is supplied. Then, the corona discharge region C1 is generated. The corona discharge region C1 is a three-dimensional dome-shaped image with reference to the tip of the metal rod 1 and the metal plate 3. Air (atmosphere) is electrolyzed by the corona discharge region to generate ions (negative ions) and ozone having a direction from position P2 to position P1. On the other hand, a fan, which will be described later, forms a wind flow (air flow 20) from the position P1 to the position P2. Since the wind speed of the air flow 20 formed by the fan is strong, the generated ions and ozone having directions from P2 to P1 become ion winds and ozone winds having directions from position P1 to position P2 as a result. Therefore, finally, a flow of ions and ozone is generated in the through hole 6 of the insulating plate 5. That is, the ionic wind and the ozone wind are ensured in a predetermined direction (direction from position P1 to position P2) by a fan described later, and the air volume thereof is accelerated. The first embodiment is an apparatus mainly aimed at the amount of ions generated (that is, ion-rich), which is determined from structural design, electrical design, and the like.

In the first embodiment, the corona discharge region C1 covers a part of the metal rod 1 from the viewpoint of the Z axis. In other words, it can be said that it is a "structural design in which the corona discharge region includes a part of the cathode". This structural design can be thought of as an "umbrella and its axis". Therefore, as compared with the conventional "structural design in which the cathode and the anode correspond to each other", it is not necessary to secure the corona discharge region independently, so that the device can be miniaturized. Further, the anode (metal plate 3) is arranged on the wind source side of the ion wind and the ozone wind, and the cathode (the tip of the metal rod 1) is arranged on the leeward side of the ion wind and the ozone wind. Therefore, the amount of contaminants adhering to the metal plate 3 (anode side) can be suppressed. Therefore, improvement in maintainability can be expected. Further, since the resist 4 covers the metal plate 3, the amount of contaminants adhering to the metal plate 3 can be extremely suppressed.

In the first embodiment, the length of the tip (position P2 side) of the exposed metal rod 1 regardless of the covering body 2 is 1 mm. The length of the covering body 2 covering the metal rod 1 is 14 mm. The thickness of the insulating plate 5 is 1.6 mm. The diameter of the through hole 13 included in the insulating plate 5 is 3.2 mm. The diameter of the through hole 6 included in the insulating plate 5 is 6 mm. The diameter of the metal plate 3 is 10 mm. The diameter of the through hole 12 of the metal plate 3 is 5 mm. The arrangement interval of the two upper and lower through holes 6 in the X direction in FIG. 2 is 8 mm. The arrangement interval of the two through holes 6 in the middle stage is 16 mm. The arrangement pitch of the three through holes 6 in the Y direction in FIG. 2 is 7 mm. Some of these are also described in FIGS. 14 and 15 described later.

In the first example, the amount of generated ions was measured. It measured 530 x 10,000 Ion / cm3. The measuring condition was set to 300 mm from the device.

With respect to this result, although not shown, the amount of ions when another metal plate having a diameter size smaller than that of the metal plate 3 (hereinafter referred to as “smaller metal plate”) is used is 420 × 10,000. Ion / cm3 was measured. The diameter of the reduced metal plate is 8 mm. The diameter of the through hole of the reduced metal plate was 4.5 mm, which was smaller than that of the through hole 12. It can be understood that the amount of ions generated is larger as the diameter is larger, such as the metal plate 3 and the through hole 12. In other words, it is desirable that the diameter of the through hole 12 of the metal plate 3 is larger than the diameter of the through hole 13 of the insulating plate 5, as in the first embodiment.

In the first embodiment, the cover 2 is one element that forms the preferred corona discharge shown in FIG. For example, when the covering body 2 is removed, a discharge having an absolute voltage of 6 kV occurs at the shortest distance between the metal rod 1 and the metal plate 3. However, if the diameter of the through hole 13 of the insulating plate 5 is made larger, it is possible to eliminate the covering body 2.

In the first embodiment, the most efficient shape of the corona discharge is the three-dimensional hemispherical dome. As a result, it is preferable that the through hole 12, the through hole 13, and the through hole 6 have a circular shape as in the first embodiment.

4, 5 and 6 are cross-sectional views, plan views and schematic views which simply exemplify a second embodiment of the present invention (a part of an apparatus mainly for generating ozone). The same contents as those in the first embodiment have the same reference numerals, and their description will be omitted.

In FIGS. 4 (cross-sectional view) and 5 (plan view), the metal plate 7 (second metal plate), the through hole 14 (fourth through hole) of the metal plate 2, and the resist 8 (second resist). , The insulating plate 9 (second insulating plate), and the through hole 10 (sixth through hole) and the through hole 11 (fifth through hole) of the second insulating plate 9, respectively, are newly disclosed. .. The insulating plate 9, the metal plate 7, and the resist 8 are arranged on the position P2 side. The features of the insulating plate 9, the through hole 10 and the through hole 11 extending in the XY direction correspond to the respective features of the insulating plate 5, the through hole 6 and the through hole 13. The characteristics of the resist 8 correspond to the characteristics of the resist 4. The features of the metal plate 7 correspond to the features of the metal plate 3. The diameter of the through hole 14 is larger than the diameter of the through hole 11. The plurality of through holes 10 are arranged in a circle around the metal rod 1 so as to surround the metal plate 7.

In FIG. 6 (schematic diagram), the metal rod 1 of the conductor is a cathode to which a negative voltage (for example, minus 6,000 V) is supplied. The metal plate 7 is an anode to which a positive voltage (for example, a ground voltage of 0 V) is supplied. The metal plate 3 is floating to which no voltage is supplied. Then, the corona discharge region C2 is generated. The corona discharge region C2 is a dome-shaped image with reference to the tip of the metal rod 1 and the metal plate 7. The corona discharge region electrolyzes air (atmosphere) to generate ions (negative ions) and ozone. Some of them become ionic wind and ozone wind from the position P1 to the position P2, and the air 30 flows through the through hole 10 of the insulating plate 9. The ionic wind and ozone wind are ensured in a predetermined direction (direction from position P1 to position P2) by a fan described later, and the air volume thereof is accelerated. The second embodiment is an apparatus mainly aimed at the amount of ozone generated (that is, ozone-rich), which is determined from structural design, electrical design, and the like.

Here, in FIG. 6 (schematic diagram), the metal plate 3 is floating to which no voltage is supplied. Details will be described later with reference to FIG. 7 and characteristic tables 1 to 4.

In the second embodiment, the corona discharge region C2 is independently interposed between the metal rod 1 and the metal plate 7, and the metal plate 5 that suppresses ozone generation sandwiches the tip of the metal rod 1. Facing the metal plate 7. In other words, it can be said that "a structural design in which the anode and the cathode are in a facing positional relationship and the anode and the floating electrode are in a facing relationship from the viewpoint of the Z axis". Therefore, it is possible to control the amount of ozone generated by the corona discharge. Further, the insulating plate 9 is arranged between the anode (metal plate 7) and the metal rod 1. In other words, the cathode (the tip of the metal rod 1) is arranged on the wind source side of the ion wind and the ozone wind. The insulating plate 9 is arranged on the leeward side of the ion wind and the ozone wind together with the metal plate 7. However, the insulating plate 9 can suppress the amount of contaminants adhering to the metal plate 7 (anode side). Therefore, improvement in maintainability can be expected. Further, since the resist 8 covers the metal plate 7, the amount of contaminants adhering to the metal plate 7 can be extremely suppressed.

In the second embodiment, the thickness of the insulating plate 9 is 1.6 mm. The diameter of the through hole 11 included in the insulating plate 9 is 3.2 mm. The diameter of the through hole 10 included in the insulating plate 9 is 6 mm. The diameter of the metal plate 7 is 8 mm. It is smaller than the diameter of the metal plate 3 (10 mm). The diameter of the through hole 14 of the metal plate 7 is 4.5 mm. The arrangement interval of the two upper and lower through holes 10 in the X direction in FIG. 5 is 8 mm. The arrangement interval of the two through holes 6 in the middle stage is 16 mm. The arrangement pitch of the three through holes 6 in the Y direction in FIG. 5 is 7 mm. Some of these are also described in FIG. 16 described later.

In the second embodiment, the amount of ozone generated was measured. It measured less than 0.05 ppm. The measuring condition was set to 50 mm from the device. The standard value (0.05 ppm or less) defined by JIS (Japanese Industrial Standards) is an index.

With respect to this result, although not shown, the amount of ozone when another metal plate having a diameter larger than that of the metal plate 7 was used was measured to be 0.05 ppm or more. Therefore, it can be understood that the amount of ozone generated is smaller and better when the metal plate 7 having a small diameter is used as in the second embodiment. Further, for this result, although not shown, the size of the through hole 11 (fifth through hole) is related to the amount of ozone generated. For example, if the size of the through hole 11 is reduced, the amount of ozone generated is reduced. Further, from this viewpoint, it is not necessary to provide the through hole 11. In this case, the amount of ozone generated is the smallest value.

In the second embodiment, "the relationship in which the anode and the cathode are opposed to each other and the anode and the floating electrode are opposed to each other in the viewpoint of the Z axis" is one element forming the preferable corona discharge shown in FIG. is there. For example, by adding or removing the metal plate 3 (floating electrode), or the metal plate 3 (floating electrode) and the insulating plate 5, the amount of ozone generated can be controlled. Details will be described later with reference to FIG. 7 and characteristic tables 1 to 4.

FIG. 7 is a cross-sectional view simply illustrating a third embodiment of the present invention (a part of an apparatus mainly for generating ozone). The same contents as those of the first and second embodiments are designated by the same reference numerals, and their description will be omitted.

FIG. 7 (cross-sectional view) discloses four devices from Case 1 to Case 4. Case 4 corresponds to the second embodiment (FIG. 4). Reference numeral 15 is a substrate that supports the metal rod 1 and supplies a negative voltage to the metal rod 1 to serve as a cathode. The substrate 15 may have the same characteristics as the insulating plate 5. Reference numeral 16 is a support that supports the substrate 15 and the insulating plate 5. The distance D between the electrode on which the covering body 2 which is the tip of the metal rod 1 is exposed and the substrate 15 is 15 mm. Case 3 discloses a metal plate 40 attached to the insulating plate 9. The metal plate 40 is arranged on the side of the metal rod 1 that is inverted with respect to the arrangement of the metal plate 7 of the device of Case 4. The metal plate 40 has the same characteristics as the metal plate 7. Case 2 has a structure in which the insulating plate 5 and the metal plate 3 are excluded from Case 4. Case 1 has a structure in which the insulating plate 5 and the metal plate 3 are excluded from Case 3. In Case 1 to Case 4, the distances (mm) from the tip of the metal rod 1 to the corresponding metal plate 7 or metal plate 40 are indicated by X1 to X4, respectively, from the viewpoint of the Z axis.

The characteristic diagrams of FIGS. 8 to 11 are characteristic diagrams showing the ozone generation amount (ppm) corresponding to the distance X1 to the distance X4 corresponding to Case 1 to Case 4 disclosed in FIG. 7, respectively. FIG. 8 compares the ozone generation amounts of Case 1 and Case 2. The metal plate 40 in Case 1 is located on the side of the insulating plate 9 facing the metal rod 1, but the metal plate 7 in Case 2 is located on the side (back surface) of the insulating plate 9 not facing the metal rod 1. There is. In order to generate a predetermined amount of ozone, the distance X2 in the device of Case 2 can be made smaller than the distance X1 in the device of Case 1. That is, the structure of Case 2 in which the insulating plate 9 is sandwiched between the tip (cathode) of the metal rod 1 and the metal plate 7 can be expected to generate the most efficient ozone. That is, the miniaturization of the device can be achieved. Further, it can be understood that the amount of dirt adhered to the metal plate 7 due to the contaminants is also smaller than that of the metal plate 40. This can be expected to reduce maintenance costs. FIG. 9 compares the ozone generation amounts of Case 3 and Case 4. Case 3 and Case 4 employ a metal plate 3 having a floating potential and a corresponding insulating plate 5 as grid electrodes. Further, the metal plates 7 and 40 with respect to the insulating plate 9 are the same as Cases 2 and 1, respectively. In order to generate a predetermined amount of ozone, the distance X4 in the device of Case 4 can be made smaller than the distance X3 in the device of Case 3. Furthermore, it can be understood that the presence of the insulating plate 5 in Case 3 and Case 4 further reduces the amount of ozone generated in absolute amounts with respect to Case 1 and Case 2. FIG. 10 compares the ozone generation amounts of Case 1 and Case 3. FIG. 11 compares the ozone generation amounts of Case 2 and Case 4. It can be understood that the presence of the insulating plate 5 of Case 3 and Case 4 is effective in controlling the amount of ozone generated. Here, the devices of Case 2 and Case 4 shown in FIG. 11 are effective in the ozone generation amount required by the customer, respectively. For example, the Case2 device can obtain the maximum bactericidal ability in a space where no human body or the like exists. Further, the amount of contaminants attached to the metal plate 7 can be minimized. For example, the Case 4 device can efficiently generate ozone with a small device structure in a space where a human body or the like exists. Further, the amount of contaminants attached to the metal plate 7 can be minimized. The standard value defined by JIS (Japanese Industrial Standards) in the space where the human body or the like exists is 0.05 ppm or less.

FIG. 12 is a cross-sectional view simply illustrating a fourth embodiment of the present invention (a part of a system incorporating a device mainly for generating ions and a device mainly for generating ozone). The same contents as those of the first to third embodiments have the same reference numerals, and their description will be omitted.

In FIG. 12, the system 100 includes a housing, a fan 220 as a blower, a PWR 210 as a power supply, a module 200 that generates ions and ozone, and a connection D1 that supports the module 200 in the housing. .. The PWR 210 is supplied with power from the outside of the system 100, generates a DC voltage of −6 Kv indicated by the mark S, and supplies it to the module 200. The PWR 210 also supplies a predetermined voltage to the fan 220. The fan 220 sucks the external air 230 from the suction port (which corresponds to the broken line on the left side) of the housing, and discharges the air 231 and 232 from the discharge ports 228 and 229 of the housing. This induces the flow of wind from position P1 to position P2. As described above, the fan 220 has a role of assisting the ozone wind or the ion wind caused by the module 200 itself.

In the cross-sectional view shown in FIG. 12, the module 200 has three devices (devices mainly for generating ions) 2001-203 corresponding to the first embodiment and one device (of ozone) corresponding to the second embodiment and the Case 4. It has a device) 204 that mainly generates. As shown in FIG. 12, the devices 2001 to 204 are arranged side by side in the Y direction. Further, although FIG. 12 is a cross-sectional view, it is not shown in the figure, but as will be described later with reference to FIGS. 13 to 17, each of the devices 201 to 204 is arranged in the X direction. .. A voltage of −6 Kv and GND are supplied from PWR210 to each of the devices 201 to 204. The module 200 is composed of five insulating plates B1 to B5. From the position P1 side to the position P2 side, the insulating plate B1 that supports the metal rod 1 of the device 204, the insulating plate B2 that supports the metal rod 1 of the devices 201 to 203, and the metal plate 246 of the devices 201 to 203 (FIG. 15). ), And the insulating plates B4 and B5 as a safety function (prevention of electric shock). The insulating plate B3 corresponds to the insulating plate 5 (FIG. 1). The insulating plate B2 also serves as the insulating plate of the device 204, and corresponds to the insulating plate 5 of FIG. The insulating plate B4 also serves as the insulating plate of the device 204, and corresponds to the insulating plate 9 of FIG. The features of the devices 201-204 are as described above. The five insulating plates B1 to B5 are supported by supports 233, 234, and 235, which correspond to the support 16 shown in FIG. 7, respectively. The dimensions (mm) of each part of the module 200 are shown in FIG. The exposed length L1 of the metal rod 1 is 1 mm. The length L2 in which the covering body 2 covers the metal rod is 14 mm. The distance L3 from the tip of each metal rod 1 of the devices 201 to 203 to the insulating plate B4 is 1.6 mm. The distance L4 from the tip of the metal rod 1 of the device 204 to the insulating plate B4 is 8.2 mm. The distance L5 from the tip of the metal rod 1 of the device 204 to the metal plate 3 of the insulating plate B2 is 8.4 mm. The distance L6 between the insulating plate B4 and the insulating plate B5 is 1 mm. Of the support 234, the length L7 of the portion supporting the insulating plate B1 and the insulating plate B2 and the length L8 of the portion supporting the insulating plate B2 and the insulating plate B3 are 5 mm, respectively. The length L9 of the portion of the support 234 that supports the insulating plate B3 and the insulating plate B4 is 10 mm. The length L10 of the portion of the support 235 that supports the insulating plate B2 and the insulating plate B4 is 16.6 mm. In order to reduce the manufacturing cost of the module 200, it is desirable that each insulating plate, each metal plate, each metal rod, and each covering have the same characteristics. For example, by making the specifications of the holes of each insulating plate the same, the manufacturing process of the insulating plate can be simplified. Insulating plates B1, B2, B3, B4, and B5 can be obtained from one large insulating substrate. Further, since the insulating plate B2 also serves as the insulating plate of the device 204, the manufacturing cost of the module 200 is reduced. The fact that the insulating plate B4 also serves as the insulating plate of the device 204 reduces the manufacturing cost of the module 200. Further, the manufacturing cost of the system 100 can be reduced by combining the devices (devices that mainly generate ions) 201-203 and the devices (devices that mainly generate ozone) 204 into one module. Further, as shown in FIGS. 13 to 17 described later, the manufacturing cost can be reduced by mounting a plurality of devices (devices mainly for generating ions) 201 to 203 on one insulating substrate. Further, as shown in FIGS. 13 to 17 described later, the manufacturing cost can be reduced by mounting a plurality of devices (devices mainly generating ozone) 204 on one insulating substrate. The insulating substrate B1 of the device 204 and the insulating substrate B2 of the device 203 can be realized by one insulating substrate. For example, as already described, the distance L3 from the tip of the metal rod 1 of the device 203 to the insulating plate B4 while maintaining the distance L4 (8.2 mm) from the tip of the metal rod 1 of the device 204 to the insulating plate B4. Is added by the length L7 (5 mm) of the portion supporting the insulating plate B1 and the insulating plate B2 to obtain 1.6 mm to 6.6 mm. As a result, the number of 5 insulating plates can be reduced to 4 insulating plates. This is because the insulating substrates B1 and B2 can be realized by one insulating substrate. Further, it is desirable that the diameters of the holes 236 and 238 (see FIGS. 16 and 17) of the insulating plates B4 and B5 as a safety function (prevention of electric shock) are smaller than the diameters of the discharge ports 228 and 229 of the housing. .. It is desirable that the arrangement of the holes 236 and 238 of the insulating plates B4 and B5 is not synchronized with the arrangement of the discharge ports 228 and 229 of the housing.

13 to 17 are plan views of the insulating plates B1 to B5 constituting the module 200 disclosed in the fourth embodiment (FIG. 12) of the present invention. FIG. 13 is a plan view showing the insulating plate B1 from the side surface of the position P1. FIG. 14 is a plan view showing the insulating plate B2 from the side surface of the position P1. FIG. 15 is a plan view showing the insulating plate B3 from the side surface of the position P2. FIG. 16 is a plan view showing the insulating plate B4 from the side surface of the position P2. FIG. 17 is a plan view showing the insulating plate B5 from the side surface of the position P1. The insulating plate B1 shown in FIG. 13 corresponds to the device 204 arranged in the X direction. The insulating plate B2 shown in FIG. 14 corresponds to devices 201, 202, 203, respectively, which are arranged in the X direction, that is, a total of six devices, and devices 204, which are arranged in the X direction. The insulating plate B3 shown in FIG. 15 corresponds to devices 201, 202, 203, that is, a total of six devices, each of which is arranged in the X direction. The insulating plate B4 shown in FIG. 16 corresponds to devices 201, 202, 203, which are arranged in the X direction, that is, a total of six devices, and devices 204, which are arranged in the X direction. The insulating plate B5 (fourth insulating plate) shown in FIG. 17 corresponds to the device 204 arranged in the X direction. The five insulating plates B1 to B5 each have a plurality of identical holes (which are six holes per device; representatively, holes 236 in FIG. 16 and holes 238 in FIG. 17 are shown with reference numerals). Have. This is to efficiently flow ozone air and ion air from position P1 to position P2, and also improve the air blowing efficiency of the fan 220. For example, the holes each of the plurality of insulating plates are realized by at least one of being arranged in synchronization with each other, having a plurality of holes of the same number, and having holes of the same size. In FIG. 13, one metallized metal plate 240 is attached to the insulating plate B1. The metal rod 1 is soldered to the metallized portions 240a and 240b located at the centers of the six holes. The metallized portion 240c located above the insulating plate B1 is a connecting portion to which −6 Kv is supplied from the power supply device PWR210. In FIG. 14, the insulating plate B2 is provided with two metallized metal plates 242 and 244. The first metal plate 242 supports the metal rods 1 of the devices 201, 202, and 203, respectively. The first metal plate 242 is arranged on the insulating plate B2 on the position P1 side. The second metal plate 244 of FIG. 14 is arranged on the insulating plate B2 on the position P2 side. Therefore, the second metal plate 244 is represented by a dotted line. Of the first metal plate 242, the metallized portion 242a located above the insulating plate B2 is a connecting portion to which −6 Kv is supplied from the power supply device PWR210. The second metal plate 244 located below the insulating plate B2 is electrically floating. The first and second metal plates 242 and 244 have the same characteristics as the metal plate 240 of FIG. In FIG. 15, one metallized metal plate 246 is attached to the insulating plate B3. As shown in FIG. 12, the GND potential is supplied to the metallized portion 246a located at the center of the six holes. In FIG. 16, one metallized metal plate 248 is attached to the insulating plate B4. As shown in FIG. 12, a GND potential is supplied to the metallized portion 248a located at the center of the six holes. A metallized substrate is not attached to the portion of the insulating plate B4 corresponding to the devices 201, 202, 203. In FIG. 17, the metallized substrate is not attached to the portion corresponding to the device 204. In each of the insulating plates B1 to B5, holes 250 (representatively, holes 250, 252, 254, 256, 258 for the support 234 of FIG. 12) are provided in the peripheral portion for the support supporting each other from FIG. (Shown in FIG. 17) is provided. The support 234 and 235 in FIG. 12 may reach the insulating plate B5. The insulator B5 of FIG. 17 is provided with a polygonal hole 260 on the right side as an escape hole for soldering.

FIG. 18 is a cross-sectional view simply illustrating a fifth embodiment of the present invention (a part of a system incorporating a device mainly for generating ions and a device mainly for generating ozone). The same contents as those of the first to fourth embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 18, a switch SW. That executes electrical control is further added. The switch SW. Has one input terminal 262 and two output terminals 264 and 266. The switch SW. Is a control signal Sigma. The ground potential GND connected to the input terminal 262 is supplied to either one of the two output terminals 264 and 266 connected to the metal plate 3 and the metal plate 7, respectively. The other metal plate that was not selected is electrically floating. According to the fifth embodiment, the devices 201 to 203 and the devices 204 of the fourth embodiment shown in FIG. 12 can all have the same structure. Further, the flexibility of the module 200 shown in FIG. 12 can be enhanced. For example, the devices 201 to 204 of FIG. 12 are changed to have the same structure as that of the fifth embodiment of FIG. 18, and a plurality of control signals Sigma corresponding to each of the plurality of switches SW. Can be given to each device to perform different controls. As a result, the system 100 can flexibly control the ratio of the amount of ions generated and the amount of ozone generated. Further, the switch SW. Is a control signal Sigma. It may have a function of not selecting either of the two output terminals. As a result, the system 100 can flexibly control the absolute values of the amount of ions generated and the amount of ozone generated.

19, FIG. 20, FIG. 21 and FIG. 22 are cross-sectional views that simply exemplify the sixth embodiment of the present invention (a device that mainly generates ions and a device that coexists with ions and ozone). And an example of a member. That is, the sixth embodiment of the present invention has two features. The same contents as those of the first to fifth embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 19 (cross-sectional view), a metal cylinder 50, a metal plate 31, a solder 54, insulating plates B6, B7, B10, and through holes 17, 18, 19, 20 are newly disclosed. As an example of the metal cylinder 50, eyelets 51 shown in FIG. 20, sleeve 52 shown in FIG. 21, and braided metal 53 shown in FIG. 22 are disclosed, respectively. The insulating plate B6 includes a through hole 18. The insulating plate B7 includes a through hole 19 and a through hole 20. The insulating plate B10 includes a through hole 17. The through holes 17, 18, 19, and 20 correspond to FIGS. 24, 25, and 26, which are plan views of the substrate described later, respectively. The solder 54 attached to the substrate B10 electrically connects the metal rod 1 to the lead wire S1 (FIG. 24). The solder 54 attached to the substrate B6 electrically connects the metal cylinder 50 to the lead wire S2 (FIG. 25). The metal plate 31 corresponds to the features of the metal plate 3 (FIG. 1). The metal plate 31 is a metal ring having a through hole like the metal plate 3. The resist 4 (FIG. 1) attached to the metal plate 31 is not shown. The insulating plate B7 is similar to the insulating plate 5 (FIG. 5) except that it has a through hole 19. In relation to the metal cylinder 50, the eyelet 51 shown in FIG. 20, the sleeve 52 shown in FIG. 21, and the braided metal 53 shown in FIG. 22 are metal bodies and steel (an alloy containing (steel) iron as a main component), respectively. Stainless steel ((SUS)) Chromium, or a rust-resistant alloy steel containing chromium and nickel. According to ISO standards, carbon content is 1.2% (mass percent concentration) or less, and chromium content is 10.5%. (Defined as steel above), aluminum, brass, etc. can be selected. As stainless steel (SUS), SUS 304-S (18Cr-10Ni), SUS 430F (17Cr-S), SUS 304 (18Cr-8Ni), SUS 304L (18Cr-8Ni-LC), SUS 316L (18Cr-12Ni) -2Mo-LC), SUS 317L (19Cr-12Ni-3Mo-LC), SUS 321 (18Cr-9Ni-Ti), SUS 316Ti (18Cr-11Ni-2Mo-Ti), etc. will be disclosed. Stainless steel is preferable in consideration of the deterioration of the metal cylinder 50 due to the corona discharge and the maintainability against the adhesion of dust and the like. The eyelet 51, the sleeve 52, and the braided metal 53 each have a hollow portion at the center thereof, and the hollow portion penetrates the metal rod 1 and the covering body 2. The diameter of the covering body 2 and the inner diameter of the hollow portion thereof are substantially the same. The metal cylinder 50 may be protected by a solder leveler, which is a solder coat, or plating. When the metal cylinder 50 is a metal that is easily oxidized, the surface of the metal is protected. It also suppresses the deterioration of the metal due to corona discharge with a very high electric field. The thickness of the metal cylinder 50, which will be described later, includes the thickness of these solder levelers or plating. Since the eyelet 51, the sleeve 52, and the braided metal 53 can be electrically connected to and supported by the insulating plate B6 with the solder 54, they are manufactured more than the metal plate 31 manufactured by metallizing such as copper foil. Cost can be reduced.

The sixth embodiment is, as a first feature, an apparatus that aims at substantially only the amount of ions generated (that is, ion-rich) in the relationship between the metal rod 1 and the metal cylinder 50, and ozone is almost non-existent. Does not occur. On the other hand, as a second feature, it is a device aimed at generating ions and ozone coexisting in the relationship between the metal rod 1 and the metal plate 31. They are determined from structural design, electrical design, etc. More specifically, the extending direction of the metal cylinder 50 is the same as the extending direction of the metal rod 1. The metal cylinder 50 wraps the covering body 2 and extends in the Z direction so as to penetrate the insulating plate B6. The metal cylinder 50 is connected to the solder 54 on the left side of the insulating plate B6 and is exposed by 2.0 mm on the right side of the insulating plate B6. The length of the tip (position P2 side) of the exposed metal rod 1 regardless of the covering body 2 is 2 mm. The metal rod 1 of the conductor is a cathode to which a negative voltage (for example, minus 6,000 V) is supplied. The metal cylinder 50 is an anode to which a positive voltage (for example, ground voltage 0V; GND) is supplied. Then, a corona discharge region C3 (not shown), which is a three-dimensional dome-shaped image based on the tip of the metal rod 1 and the 2.0 mm exposed position of the metal cylinder 50, is generated. The corona discharge region C3 is similar to the corona discharge region C1 shown in FIG. 3 (structural design in which the corona discharge region includes a part of the cathode), but the shape of C3 is different from that of C1. Specifically, the shape of the corona discharge region C3 is longer in the Z direction than C1 and shorter in the Y direction than C1. The reason for this is that the extending direction of the metal cylinder 50 is the same as the extending direction of the metal rod 1. Further, the distance between the tip of the metal rod 1 and the 2.0 mm exposed position of the metal cylinder 50 (10.0 mm = 8.0 mm + 2.0 mm) is larger than the distance between the tip of the metal rod 1 and the position of the metal plate 31. Because it's long. The definition of this distance is the viewpoint in the Z direction. Further, the through hole 19 of the insulating plate B7 does not hinder the formation of the corona discharge region C3. Therefore, the amount of ions generated in the corona discharge region C3 is even larger than the amount of ions generated in the corona discharge region C1. On the other hand, the amount of ozone generated in the corona discharge region C3 is much smaller than the amount of ozone generated in the corona discharge region C1 (substantially zero). The thickness of the metal cylinder 50 and the distance (10.0 mm) of the metal cylinder 50 in the 2.0 mm exposed position are important from the viewpoint of the amount of ozone generated in the corona discharge region C3. Specifically, if the distance (10.0 mm) is further shortened, ozone is generated. Further, when the thickness of the metal cylinder 50 is increased, ozone is generated. This can also be understood from the experimental example of the difference in diameter of the metal plate 7 of the second embodiment described above. In other words, the area of the metal plate 7 due to the difference in the diameter value (Y-axis direction) of the metal plate 7 can be replaced by analogy with the thickness of the metal cylinder 50. As shown in FIG. 19, the thickness of the metal cylinder 50 is smaller than the radius of the ring of the metal plate 31 minus the radius of the through hole of the ring, and is preferably 0.5 mm or less. Further, in order to reduce the amount of ozone generated to substantially zero, the distance (10.0 mm or 10 mm or more) must be maintained and the thickness of the metal cylinder 50 must be 0.2 mm or less. The characteristics of ions and ozone under these conditions are shown in FIG. 29, which will be described later. The end portion of the metal cylinder 50 (the thickness of the metal cylinder 50 is 0.2 mm or less) related to the 2.0 mm exposed position of the metal cylinder 50 is a corona discharge region C3 formed between the metal cylinder 50 and the tip of the metal rod 1. It is a reference point of. The end portion has the highest electric field strength. The surface of the metal cylinder 50 exposed by 2.0 mm on the right side of the insulating plate B6 also contributes to corona discharge, although it is a little. Next, pay attention to the metal plate 31. As described above, the metal plate 31 corresponds to the feature of the metal plate 3 (FIG. 1). The insulating plate B7 is similar to the insulating plate 5 except that it has a through hole 19. However, the distance relationship between them is different with respect to the tip of the metal rod 1. Specifically, since the insulating plate B7 has the through hole 19, the distance from the tip of the metal rod 1 to the metal plate 31 is farther than that of the first embodiment (metal plate 3) from the viewpoint in the Y direction, and Z. It is closer than the first embodiment (metal plate 3) in terms of direction. Then, a corona discharge region C4 (not shown), which is a three-dimensional dome-shaped image based on the tip of the metal rod 1 and the position of the metal plate 31, is generated. The corona discharge region C4 is similar to the corona discharge region C1 shown in FIG. 3 (structural design in which the corona discharge region includes a part of the cathode), but the shape of C4 is different from that of C1. Specifically, the shape of the corona discharge region C4 is shorter in the Z direction than C1 and longer in the Y direction than C1. Therefore, the amount of ions generated in the corona discharge region C4 is smaller than the amount of ions generated in the corona discharge region C1. On the other hand, the amount of ozone generated in the corona discharge region C4 is larger than the amount of ozone generated in the corona discharge region C1. Therefore, the corona discharge region C4 is generated by coexisting ions and ozone, respectively. If the metal plate 31 is a material such as stainless steel (SUS) that can maintain its supporting strength by itself, the insulating plate B7 can be omitted. Deterioration of the metal due to corona discharge with a very high electric field can be suppressed, and therefore durability can be expected to be improved. In that case, the stainless steel (SUS) of the metal plate 31 has through holes 19 and 20.

23 to 29 show a system incorporating a seventh embodiment of the present invention (a device that mainly generates ions, a device that coexists with ions and ozone, and a device that mainly generates ozone. A cross-sectional view (FIG. 23) and a plan view (FIGS. 24 to 28) and a table (FIG. 29) showing the conditions and characteristics of the switch circuit are exemplified by simply exemplifying some of them and the switch circuit that controls those devices. Is. The same contents as those of the first to sixth embodiments are designated by the same reference numerals, and their description will be omitted.

In FIG. 23, the system 101 is similar in structure to the apparatus of the sixth embodiment (FIG. 19) and a part of the second embodiment (FIG. 4) (insulating plate 9, metal plate 7, resist 8). It has a device 206 comprising a structure and a structure similar to that of a portion (insulating plate B5) of a fourth embodiment (FIG. 12). The system 101 further includes a switch circuit 227 that controls the device 206. A voltage of −6 Kv and GND are supplied from the PWR 210 to the lead wire S1 via the switch circuit 227 to the device 206. Module 205 is composed of five insulating plates B6 to B10. From the position P1 side to the position P2 side, the insulating plate B10 that supports the metal rod 1 of the device 206, the insulating plate B6 that supports the metal cylinder 50, the insulating plate B7 that supports the metal plate 31, and the metal plate 7 are supported. The insulating plate B8 and the insulating plate B9 as a safety function (prevention of electric shock). The plan views of the five insulating plates B6 to B10 are disclosed in FIGS. 24 to 28. The insulating plate B10 of FIG. 24 is similar to half of the insulating plate B1 (FIG. 13). The insulating plate B8 of FIG. 27 is similar to the lower half of the insulating plate B4 (FIG. 16). The insulating plate B9 of FIG. 28 is similar to half of the insulating plate B5 (FIG. 17). The insulating plate B10 of FIG. 24 further includes a plurality of through holes through which the plurality of lead wires S1, S2, S3, and S4 pass through. The insulating plate B6 of FIG. 25 further includes a plurality of through holes through which the plurality of lead wires S2, S3, and S4 pass through. The insulating plate B7 of FIG. 26 further includes a plurality of through holes through which the plurality of lead wires S3 and S4 pass through. The insulating plate B8 of FIG. 27 further includes at least a through hole through which the lead wire S4 is passed. The substrate B10 of FIG. 24 has a metal pattern (indicated by a dashed line) that electrically connects the metal rod 1 to the lead wire S1. The substrate B6 of FIG. 25 has a metal pattern (broken line) that electrically connects the metal cylinder 50 to the lead wire S2. The substrate B7 of FIG. 26 has a metal pattern (broken line) that electrically connects the metal plate 31 to the lead wire S3. The substrate B8 of FIG. 27 has a metal pattern (broken line) that electrically connects the metal plate 7 to the lead wire S4. The characteristics of the device 206 included in the system 101 have three characteristics. That is, the two features of the above-mentioned sixth embodiment (a device that mainly generates ions and a device that coexists with ions and ozone) and the features of the above-mentioned second embodiment (mainly ozone). (That is, an ozone-rich device) that aims at the amount of The system 101 has a connecting portion D1 that supports five insulating plates B6 to B10 in the housing. The reference numerals of the supports that support the five insulating plates B6 to B10 are omitted. Regarding the metal pattern shown by the broken line (Dashed line) disclosed in FIGS. 24 to 27, a metallizing pattern such as copper foil, another conductor lead wire, or a solder leveler which is a solder coat is used. ) Or plating can be selected. The metal pattern represented by the alternate long and short dash line can be defined as a part of a plurality of lead wires S1, S2, S3, and S4. A resist (not shown) is attached to the surfaces of the insulating plate B10, the insulating plate B6, the insulating plate B7, and the insulating plate B8, respectively. The resist is an insulating material. These resists protect at least the aforementioned metal patterns, leads S, and metal plates (eg, 50, 31, 7; FIG. 23). These resists exhibit the same characteristics as the resists 4 and 8 shown in FIG. 4 above. That is, those insulating plates, which are printed wiring board PCBs such as FR4, have a metal pattern, a lead wire S, and a metal plate on their surfaces, and further have a resist on the surface of the metal pattern, the lead wire S, and the metal plate. It has a three-layer structure. In the portion where the metal pattern does not exist, a two-layer structure of an insulating plate and a resist is preferable. If the metal plate 7 is a material such as stainless steel (SUS) that can maintain its supporting strength by itself, the insulating plate B8 can be omitted. Deterioration of the metal due to corona discharge with a very high electric field can be suppressed, and therefore durability can be expected to be improved. In that case, the stainless steel (SUS) of the metal plate 7 has through holes 10 and 11 (FIG. 5). Further, maintainability is improved when cleaning contaminants adhering to the stainless steel (SUS) of the metal plate 7. Alternatively, the stainless steel (SUS) of the metal plate 7 to which the contaminants are attached can be easily replaced with the stainless steel (SUS) of the new metal plate 7. The system 101 includes a housing having a suction port and a discharge port, and a blower fan, and arranges the metal cylinder 50, the metal plate 31, and the metal plate 7 in this order from the suction port side (or the blower fan 220 side) of the housing. Will be done. Due to the flow of air 231, contaminants and the like of the metal cylinder 50, which is the most difficult to maintain, are unlikely to adhere. Next, contaminants and the like on the metal plate 31 having the through hole 19 are unlikely to adhere.

A table (FIG. 29) showing a plurality of conditions of the switch circuit 227 of the system 101 of FIG. 23 and their corresponding characteristics will be described in detail. In FIG. 29, the horizontal axis (X) discloses seven conditions, and the vertical axis (Y) discloses the voltage states and characteristic characteristics of the four lead wires S1 to S4, and the relative values of the amount of ions and the amount of ozone generated. To do. Here, the lead wires S1 to S4 can be understood as signals S1 to S4 controlled by the lead wires via a switch circuit. Condition 1 indicates a so-called system 101 operation stop state. Condition 2 indicates a state in which a corona discharge state is generated only in S1 and S2. Condition 3 indicates a state in which a corona discharge state is generated only in S1 and S3. Condition 4 indicates a state in which a corona discharge state is generated only in S1 and S4. Condition 5 indicates a state in which a corona discharge state is generated in S1, S2, and S3, respectively. Condition 6 indicates a state in which a corona discharge state is generated in S1, S3, and S4, respectively. Condition 7 indicates a state in which a corona discharge state is generated in S1, S2, S3 and S4, respectively. Condition 2 exhibits an ion-rich characteristic (the amount of ozone is substantially zero) as described above. Condition 4 exhibits ozone-rich characteristics as described above. Condition 3 shows the characteristic that ions and ozone coexist. Conditions 5 to 7 are the sum of conditions 2 to 4, respectively. Condition 7 shows the characteristic of having the largest amount of ions. Condition 6 and condition 7 show the characteristic of having the largest amount of ozone. Each of these combinations by switch circuit 227 meets diverse customer requirements. The potential of the lead wire that is not selectively controlled is floating. Furthermore, it is possible to set other conditions. For example, the potentials of the anodes S2, S3, and S4 at the time of selective control are controlled independently from the normal 0v to other voltages (for example, ± 1kv, ± 0.5kv, and combinations thereof). The power supply PWR210 generates other voltages and supplies them to the switch circuit 227.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be implemented in various other embodiments without departing from the gist of the present invention. For example, the metal rod 1 may be a needle or may have various other shapes (pencil, triangular pyramid, quadrangular pyramid, or cylinder). Further, the metal rod 1 may be an electric wire (Wire) or a stranded wire (Strand wire). Further, the metal rod 1 may be carbon fiber. The shape of the tip of the metal rod may be a sharp needle. The insulating material 2 may have a two-layer structure of an insulator and an outer skin. The first metal plate 3 and the second metal plate 7 may be made of stainless steel. Further, the metal plate may be a metal sheet or a metal film (a conductive and flexible material). The first insulating plate 5 and the second insulating plate 9 are a paper phenol substrate (FR-1,2), a paper epoxy substrate (FR-3), a glass composite substrate (CEM-3), a glass polyimide substrate, and a fluorine substrate. , Glass PPO substrate, etc. The shape of the through hole 6 is not limited to a circle having a predetermined radius. For example, it may be an ellipse. It may have a shape other than a circular shape. The arrangement of the plurality of through holes 6 is not limited to the circular arrangement. The ring-shaped metal plate 3 having the through hole 12 may include the through hole 6 of the first insulating plate 5, or may be arranged outside the through hole 6. The positive voltage is not limited to the ground voltage 0V (GND). The relationship between the absolute values of the voltages of the cathode and the anode may be exchanged. AC signals may be supplied to the cathode and anode. Further, a bias value of a predetermined value may be given to the AC signal. The first to seventh embodiments may be combined as appropriate, whether specified or not explicitly stated herein. For example, the device 206 can be arranged in a plurality of arrangements such as devices 201, 202, 203, 204. For example, devices 201, 202, 203, 204, 206 can be combined as appropriate. For example, the module 200 and the module 205 can be combined as appropriate. The length of the tip of the exposed metal rod 1 is 1.0 mm in the first embodiment and 2.0 mm in the sixth embodiment. The optimum corona discharge region of these lengths differs depending on the film thickness of the covering body 2. This is because the tip of the metal cylinder 50 viewed from the tip of the metal rod 1 changes the optimum shape of the corona discharge region C4 depending on the thickness of the covering body 2. For example, when the covering body 2 is thick, the exposed length of the metal rod 1 is 2.0 mm. When the thickness of the covering body 2 is thin, the exposed length of the metal rod 1 is 1.0 mm. The technical scope of the present invention is not limited to the plurality of examples described above or a combination thereof, but extends to the matters described in the claims and their equivalents or variants.

The present invention can be used in devices that generate at least one of ions and ozone in connection with a Corona discharge.

1 Metal rod 2 Cover 3, 7, 40, 246, 31 Metal plate 50 Metal tube
51 Eyelets (Metal Grommet, Metal Eyelet)
52 Sleeve (Metal Sleeve)
53 Braided metal
54 Solder
4, 8 Resists 5, 9, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 Insulation plates 6, 10, 11, 12, 13, 14, 236, 238, 250, 252, 254 , 256, 258, 17, 18, 19, 20 Through hole 15 Board 16, 233, 234, 235 Support 100, 101 System 200, 205 Module 201, 202, 203, 204, 206 Device 210 Power supply PWR
220 Blower Fan 227 Switch Circuit 228 229 Outlet C1, C2, C3, C4 Corona Discharge Region D1 Connection SW. Switch Sig. Control signals S1, S2, S3, S4 Lead wire (lead wire signal)

Claims (25)

A metal cylinder with a first through hole and
A metal rod penetrating the first through hole and
A coating that penetrates the first through hole and electrically insulates the metal cylinder and the metal rod.
A first insulator having a cross-sectional diameter larger than the cross-sectional diameter of the metal cylinder and having a second through hole through which the metal rod and the covering body penetrate.
A first metal plate having a third through hole having a through diameter larger than the cross-sectional diameter of the covering body, and the metal rod and the covering body penetrating the third through hole.
A switch circuit that can control the potentials of the metal cylinder and the first metal plate, respectively, is provided.
The switch circuit electrically controls at least one of the metal cylinder and the first metal plate to float.
A device that generates at least one of ions and ozone between the metal rod and the metal cylinder, or between the metal rod and the first metal plate. The device according to claim 1, wherein the metal cylinder is composed of any of eyelets, a sleeve, and a braided metal. The first metal plate has the shape of a ring having the third through hole.
The device according to claim 1 or 2, wherein the thickness of the metal cylinder is smaller than the radius of the ring minus the radius of the third through hole. The device according to claim 3, wherein the thickness of the metal cylinder is 0.5 mm or less. The metal rod has a tip exposed from the coating and has a tip.
Further, a housing having a suction port and a discharge port, and a blower fan are provided.
The device according to claim 1, wherein the metal cylinder, the first metal plate, and the tip of the metal rod are arranged in this order from the suction port to the discharge port. The metal rod has a tip exposed from the coating and has a tip.
Further, a second metal plate facing the first metal plate is provided so as to sandwich the tip of the metal rod.
At least one of ions and ozone between the metal rod and the metal cylinder, between the metal rod and the first metal plate, or between the metal rod and the second metal plate. The device according to claim 1, wherein the device is generated. The switch circuit makes it possible to control the potentials of the metal cylinder, the first metal plate, and the second metal plate, respectively, and at least the metal cylinder, the first metal plate, and the second metal plate. The device according to claim 6, wherein any one of them is electrically floated. The device according to claim 7, wherein the switch circuit electrically floats any two of the metal cylinder, the first metal plate, and the second metal plate. The device according to claim 6, wherein the second metal plate has a fifth through hole centered on the tip of the metal rod. The metal rod has a tip exposed from the coating and has a tip.
The distance between the tip of the metal rod and the metal cylinder is longer than the distance between the tip of the metal rod and the first metal plate, according to any one of claims 1 to 4. The device described. The device according to claim 1, wherein the metal cylinder and the first metal plate are metal bodies. A first metal plate having a first through hole and
A metal rod penetrating the first through hole and
An insulating material that is brought into close contact with the metal rod to cover the metal rod to maintain electrical insulation between the first metal plate and the metal rod, at least in a portion penetrating the first through hole.
In an apparatus that has a second through hole corresponding to the first through hole and has a first insulating plate that supports the first metal plate, and generates at least one of ions and ozone. ,
The tip of the metal rod has an exposed electrode regardless of the insulating material.
The device further
A second metal plate facing the first metal plate so as to sandwich the electrode,
It has a switch circuit that can control the potentials of the first and second metal plates, respectively.
The switch circuit controls one of the first and second metal plates to a first potential, and electrically controls the other of the first and second metal plates to float.
A device that generates at least one of ions and ozone between the metal rod and the first metal plate, or between the metal rod and the second metal plate. The device according to claim 12, wherein the insulating material further covers the metal rod in close contact with the metal rod at a portion penetrating the second through hole. The device according to claim 13, wherein the first metal plate is arranged between the tip of the metal rod and the first insulating plate. The apparatus according to claim 14, further comprising a first resist, which is arranged so as to sandwich the first metal plate with the first insulating plate. The device according to any one of claims 13 to 15, wherein the first through hole is larger than the second through hole. The first insulating plate according to any one of claims 13 to 16, wherein the first insulating plate includes a plurality of third through holes arranged around the first and second through holes corresponding to the first and second through holes. Equipment. The device according to claim 17, wherein at least one of the first, second and third through holes is circular. The second metal plate includes a fourth through hole and includes a fourth through hole.
12. The apparatus of claim 12, further comprising a fifth through hole corresponding to the fourth through hole and further having a second insulating plate supporting the second metal plate. The device according to claim 19, wherein the second insulating plate is arranged between the tip of the metal rod and the second metal plate. The apparatus according to claim 20, further comprising a second resist, which is arranged so as to sandwich the second metal plate with the second insulating plate. The device according to any one of claims 19 to 21, wherein the fourth through hole is larger than the fifth through hole. According to any one of claims 19 to 22, the second insulating plate includes a plurality of sixth through holes, which are arranged around the fourth and fifth through holes. The device described. 23. The device of claim 23, wherein at least one of the fourth, fifth and sixth through holes is circular. The apparatus according to any one of claims 19 to 24, further comprising a fourth insulating plate facing the second insulating plate so as to sandwich the second metal plate.

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