CN112189381A

CN112189381A - Device for generating at least either of ions and ozone

Info

Publication number: CN112189381A
Application number: CN201980035151.1A
Authority: CN
Inventors: 大塚宽治; 秋山丰; 坪井敏宏; 河西纯一
Original assignee: Future Co Ltd
Current assignee: Future Co Ltd
Priority date: 2018-05-25
Filing date: 2019-05-23
Publication date: 2021-01-05
Anticipated expiration: 2039-05-23
Also published as: JP6775865B2; JPWO2019225683A1; WO2019225683A1; JP6806399B1; CN112189381B; WO2019225017A1; JP2021036521A

Abstract

Provided is a device for generating ions or ozone with high efficiency or at low cost. For example, there are: a metal tube (50) having a 1 st through hole; a metal rod (1) penetrating the 1 st through hole; a coating body (2) which penetrates the first through hole (1) and electrically insulates the metal cylinder (50) and the metal rod (1); a 1 st insulating plate (B6) having a 2 nd through-hole through which the metal tube (50), the metal rod (1), and the coating body (2) pass; and a 1 st metal plate (31) having a 3 rd through hole (19), wherein the 3 rd through hole (19) is used for the metal rod (1) and the cladding body (2) to pass through, and has a passing diameter larger than the cross-sectional diameter of the cladding body (2). Corona discharges having different characteristics can be generated by the metal rod (1) and the metal tube (50), and the metal rod (1) and the metal plate (31), respectively.

Description

Device for generating at least either of ions and ozone

Technical Field

The present invention relates to an apparatus (hereinafter, sometimes simply referred to as an apparatus) that generates at least either one of ions and ozone in association with Corona discharge (Corona discharge).

Background

Charged fine particles existing in the atmosphere can be roughly classified into small ions generated due to ionization of molecules and subsequent chemical reaction and large ions formed by attaching the small ions to electrically neutral aerosol (aerosol). As one of the methods for efficiently generating small negative ions (hereinafter, may be referred to as negative ions), corona discharge is known. For corona discharge, for example, a high voltage difference is generated between the needle electrode and the flat plate electrode to generate corona discharge therebetween. Plasma is generated near the tip of the needle, and positive and negative ions are generated. As long as 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. The negative ions are attracted in the direction of the plate electrode. A part of the negative ions is released into the atmosphere. During corona discharge, ozone (O) which is a molecule composed of 3 oxygen atoms is generated in addition to positive and negative ions₃). The flow of negative ions is called ion wind, and the flow of ozone is called ozone wind.

As an apparatus for generating corona discharge, for example, there is a structure disclosed in patent document 1 (fig. 3A). The following devices are disclosed: a plurality of metal bodies attached to a plurality of metal plates are opposed to each other, and a plurality of corona discharges (FIG. 6, FIG. 8) are generated to generate at least either ions or ozone. Various shapes of metal bodies (needle, pencil, triangular pyramid, rectangular pyramid, or cylinder) are disclosed.

As devices for generating corona discharge, there are a plurality of structures disclosed in patent document 2, for example. The following devices are disclosed: corona discharge is generated by opposing metal bodies (needles) corresponding to a plurality of metal plates having a plurality of cavity patterns, respectively (fig. 1, 7, 9, and 10). In addition, the following devices are disclosed: a plurality of metal plates (blades) were opposed to each other to generate corona discharge (fig. 3). In addition, the following devices are disclosed: a metal rod having a plurality of metal projections was inserted into a cylindrical metal having a cavity, and the metal projections were opposed to each other in the cylinder, thereby generating corona discharge (fig. 5).

As an apparatus for generating corona discharge, for example, there is a cylindrical structure disclosed in patent document 3 (fig. 14, 15, and 19). The following components are disclosed: a discharge electrode 21; a ground electrode member 42 having a circular ring portion 421 through which the discharge electrode 21 penetrates; and a shielding gas outflow path 25 located at a position in contact with the outer peripheral surface of the discharge electrode 21. In detail, the cylindrical structure is as follows: as best understood from fig. 19, the 1 st circumferential chamber S1, the 2 nd stage circumferential chamber S2, and the 1 st gas reservoir 26 are arranged in series along the longitudinal direction of the discharge electrode 21, and the shielding-gas outflow passage 25 located on the inner circumferential side of the 1 st gas reservoir 26 and the 1 st gas reservoir 26 are arranged so as to overlap in the radial direction. The shielding gas outflow passage 25 extends in a long cylindrical shape having a thin wall along the outer periphery of the discharge electrode 21 from the longitudinal intermediate portion to the distal end 21b of the discharge electrode 21. Therefore, the cleaning gas passing through the shielding gas outflow passage 25 is fluidized and flows downward toward the workpiece through the center open port 207 while surrounding the distal end 21b of the discharge electrode 21. Thus, the following is disclosed: the effect of sheathing the distal end 21b of the discharge electrode 21 is improved, and the effect of preventing contamination of the discharge electrode 21 is improved.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-225160

Patent document 2: japanese patent No. 5773231

Patent document 3: japanese laid-open patent publication No. 2009-163949

Disclosure of Invention

Problems to be solved by the invention

In order to achieve a reduction in size of the device and an improvement in performance, it is necessary to further improve at least one of the amount of the ion wind and/or the ozone wind per unit area (or per unit capacity), the directivity of the direction of the ion wind and/or the ozone wind, an improvement in maintainability due to a reduction in the amount of pollution of the electrodes, and a reduction in manufacturing cost.

Regarding the amount of Ion wind, for example, in the configuration disclosed in patent document 1, the graph of fig. 11 of patent document 1 for measuring the amount of ions is 0.7 × 10000Ion/cm³。

In order to reduce the size of the device, for example, the size of the entire device including the dimension of the gap G5 in the Y direction shown in fig. 1(D) of patent document 1 is required to be further reduced by about 5 mm. However, there is a problem that the size of the entire device including the shape of the metal plate, cylinder, etc. constituting the anode and cathode, respectively, and the size of the corona discharge region must be reduced. The reason for this is considered to be at least "the relative positional relationship between the anode and the cathode". Further, the cylindrical structure disclosed in patent document 3 is complicated in structure and increases the number of parts, and therefore, it is difficult to reduce the size and cost.

For improvement of the maintainability, for example, reduction of the amount of contamination of the 1 st conductor 51A and the 2 nd conductor 51B shown in the structure disclosed in fig. 7 of patent document 2 is required. However, the contaminants in the corona discharge generated between the 1 st conductor 51A/2 nd conductor 51B and the electrode 50 adhere to the 1 st conductor 51A/2 nd conductor 51B due to the direction of the ion wind (the flow of the wind in the left direction). This is because the 1 st conductor 51A/the 2 nd conductor 51B are located downwind of the corona discharge region. Thus, it is difficult to reduce contamination of the electric conductor. At least "the relative positional relationship between the anode and the cathode" is considered to be one of the problems. Further, the cylindrical structure disclosed in patent document 3, which enhances the sheathing effect and enhances the contamination prevention effect of the discharge electrode 21, suppresses downsizing and cost reduction.

Means for solving the problems

An aspect of the present invention provides an apparatus for generating at least either one of ions and ozone, comprising: a 1 st metal plate having a 1 st through hole; a metal rod penetrating the 1 st through hole; and an insulating material which is in close contact with the metal rod at least at a portion penetrating the 1 st through hole and covers the metal rod, and maintains electrical insulation between the 1 st metal plate and the metal rod. In addition, an aspect of the present invention provides an apparatus for generating at least one of ions and ozone, comprising: a metal cylinder having a 1 st through hole; a metal rod penetrating the 1 st through hole; a coating body which penetrates through the 1 st through hole and electrically insulates the metal cylinder and the metal rod; a 1 st insulating plate having a 2 nd through hole through which the metal tube, the metal rod, and the coating body pass; and a 1 st metal plate having a 3 rd through hole, the 3 rd through hole having a through diameter larger than a cross-sectional diameter of the clad, the metal rod and the clad penetrating the 3 rd through hole.

Drawings

Fig. 1 is a sectional view simply illustrating embodiment 1 of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic diagram illustrating corona discharge of fig. 1.

Fig. 4 is a sectional view simply illustrating embodiment 2 of the present invention.

Fig. 5 is a top view of fig. 4.

Fig. 6 is a schematic diagram illustrating the corona discharge of fig. 4.

Fig. 7 is a sectional view showing embodiment 3 of the present invention in a simplified manner.

Fig. 8 is a graph of the 1 st characteristic of the amount of ozone associated with fig. 7.

Fig. 9 is a graph of the 2 nd characteristic of the amount of ozone associated with fig. 7.

Fig. 10 is a 3 rd characteristic graph of the amount of ozone associated with fig. 7.

Fig. 11 is a 4 th characteristic diagram of the amount of ozone associated with fig. 7.

Fig. 12 is a sectional view showing embodiment 4 of the present invention in a simplified manner.

Fig. 13 is a top view of the substrate B1 disclosed in fig. 8.

Fig. 14 is a top view of the substrate B2 disclosed in fig. 8.

Fig. 15 is a top view of the substrate B3 disclosed in fig. 8.

Fig. 16 is a top view of the substrate B4 disclosed in fig. 8.

Fig. 17 is a top view of the substrate B5 disclosed in fig. 8.

Fig. 18 is a sectional view showing a simplified example 5 of the present invention.

Fig. 19 is a sectional view simply illustrating embodiment 6 of the present invention.

Fig. 20 is a 1 st illustration of a member 50 shown in a 6 th embodiment of the present invention.

Fig. 21 is a 2 nd illustration of a member 50 shown in the 6 th embodiment of the present invention.

Fig. 22 is a 3 rd illustration of a member 50 shown in a 6 th embodiment of the present invention.

Fig. 23 is a sectional view showing embodiment 7 of the present invention in a simplified manner.

Fig. 24 is a top view of the substrate B10 disclosed in fig. 23.

Fig. 25 is a top view of the substrate B6 disclosed in fig. 23.

Fig. 26 is a top view of the substrate B7 disclosed in fig. 23.

Fig. 27 is a top view of the substrate B8 disclosed in fig. 23.

Fig. 28 is a top view of the substrate B9 disclosed in fig. 23.

Fig. 29 is a table simply showing the functions and characteristics of the switch circuit 227 according to embodiment 7 of the present invention.

Detailed Description

Example 1

Fig. 1, 2, and 3 are a cross-sectional view, a plan view, and a schematic view simply illustrating embodiment 1 of the present invention (a part of an apparatus mainly involving generation of ions).

In fig. 1 (cross-sectional view) and fig. 2 (top view), there are disclosed: a Metal Rod 1(Metal Rod), a clad 2 (Insulating material; Insulating film or Insulating material), a Metal plate 3 (1 st Metal plate; Metal plate or Metal substrate), a Through-hole 12 (1 st Through-hole; resist 4(1 st resist), an Insulating plate 5 (1 st Insulating plate; Insulating film), and a Through-hole 6 (3 rd Through-hole) and a Through-hole 13 (2 nd Through-hole) respectively provided in the Insulating plate 5. A metal rod 1 (for example, a tin-plated annealed copper wire) of the electric conductor is covered with a coating body 2 (for example, silicone rubber) as an insulating material. That is, the coating body 2 is coated on the metal rod 1 so as to be in close contact with the metal rod 1. The tip (position P2 side) of the metal rod 1 is exposed with metal to become an electrode. As shown in fig. 2, the metal rod 1 and the coating body 2 extend from a position P1 to a position P2 through a through hole 13 of an insulating plate 5 (e.g., FR-4 (Flame Retardant Type 4) in which epoxy resin is impregnated into a glass fiber cloth and heat-cured to be in a plate shape) extending in the XY direction. Further, positions P1 and P2 represent the Z axis. The metal rod 1 and the clad 2 further penetrate through a through hole 12 of a metal plate 3 (for example, a plating pattern such as a copper foil) of the conductor. The clad 2 maintains electrical insulation between the metal rod 1 and the metal plate 3 at the portion of the through-hole 12. The metal plate 3 is covered with a resist 4 which is a non-conductor (insulating material) as an insulator. The diameter of the through hole 13 is substantially equal to the diameter of the coating body 2 including the diameter of the metal rod 1. The metal plate 3 has a circular shape with a through hole 12. The diameter of the through-hole 12 is larger than that of the through-hole 13. The insulating plate 5 has a plurality of through holes 6 (for example, each of which is circular). The plurality of through holes 6 are arranged in a circular shape so as to surround the metal plate 3 around the metal rod 1. Fig. 1 is a cross section appropriately showing fig. 2, and can be easily understood by those skilled in the art.

In fig. 3 (schematic) the metal bar 1 of the electrical conductor is the cathode to be supplied with a negative voltage (e.g. -6,000V). The metal plate 3 is an anode to which a positive voltage (for example, ground voltage 0V; GND) is to be supplied. Thus, the corona discharge region C1 is generated. The corona discharge region C1 is a three-dimensional dome-shaped image based on the tip of the metal rod 1 and the metal plate 3. With the corona discharge region, air (atmosphere) is electrolyzed to generate ions (negative ions) having directionality from the position P2 to the position P1 and ozone. On the other hand, a fan-shaped wind described later flows from the position P1 to the position P2 (the air flow 20). The wind speed of the air flow 20 formed by the fan is strong, and therefore, the generated ions and ozone having directivity from P2 to P1 result in an ion wind and an ozone wind having directivity from the position P1 to the position P2. Therefore, finally, the flow of ions and ozone is generated in the through-holes 6 of the insulating plate 5. That is, the ion wind and the ozone wind are accelerated in their flowing directions (the direction from the position P1 to the position P2) by a fan described later. Embodiment 1 is a device mainly targeting the generation amount of ions (i.e., ion enrichment), and is determined by a structural design, an electrical design, and the like.

In embodiment 1, the corona discharge region C1 covers a part of the metal rod 1 so as to enclose a part of the metal rod 1 from the viewpoint of the Z axis. In other words, the structure can be said to be "structural design in which a part of the cathode is enclosed in the corona discharge region". This constructive design can be understood as "umbrella and its stem". Therefore, compared to the conventional "structural design in which the cathode and the anode are associated with each other", it is not necessary to separately secure a corona discharge region, and therefore, the device can be downsized. The anode (metal plate 3) is disposed on the windward side of the ion wind and the ozone wind, and the cathode (distal end portion of the metal rod 1) is disposed on the leeward side of the ion wind and the ozone wind. Therefore, the amount of the contaminants adhering to the metal plate 3 (anode side) can be suppressed. Therefore, improvement in maintainability can be expected. Further, since the metal plate 3 is covered with the resist 4, the amount of contaminants adhering to the metal plate 3 can be extremely suppressed.

In embodiment 1, the length of the tip (position P2 side) of the metal rod 1 exposed without being covered with the covering body 2 is 1 mm. The length of the clad body 2 clad the metal rod 1 was 14 mm. The thickness of the insulating plate 5 is 1.6 mm. The diameter of the through-hole 13 of the insulating plate 5 is 3.2 mm. The diameter of the through-hole 6 of 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 between the upper and lower through holes 6 in the X direction in fig. 2 is 8 mm. The arrangement interval between the two through holes 6 in the middle stage is 16 mm. The arrangement pitch between 3 through holes 6 in the Y direction in fig. 2 is 7 mm. Fig. 14 and 15, which will be described later, also describe some of them.

In example 1, the amount of ions generated was measured. It was measured at 530X 10,000 Ion/cm³. The measurement conditions were as follows, and a measuring instrument was set at a position 300mm from the apparatus.

As a result, although not shown, the amount of ions measured when another metal plate having a diameter smaller than that of the metal plate 3 (hereinafter referred to as a "reduced metal plate") was used was 420 × 10,000 Ion/cm³. The diameter of the reduced metal plate was 8 mm. The diameter of the through hole of the reduced metal plate is set to be 4.5mm smaller than the diameter of the through hole 12. The metal plate 3 and the through-hole 12 can be understood as a larger one, and the amount of ions generated is larger. In other words, as in embodiment 1, 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.

In embodiment 1, the cover 2 is one element that forms the preferred corona discharge shown in fig. 3. This is because, for example, when the coating 2 is removed, a discharge having an absolute voltage of 6kV is generated at a position having the shortest distance between the metal rod 1 and the metal plate 3. However, it is believed that: if the diameter of the through hole 13 of the insulating plate 5 is made larger, the coating 2 can be eliminated.

In embodiment 1, the most efficient is that the shape of the corona discharge is a solid hemisphere, i.e. dome. In this case, the through-

holes

12, 13, and 6 are preferably formed in a circular shape as in embodiment 1.

Example 2

Fig. 4, 5 and 6 are a cross-sectional view, a plan view and a schematic view simply illustrating embodiment 2 of the present invention (a part of an apparatus mainly involving generation of ozone). The same contents as those of embodiment 1 are given the same reference numerals and their description is omitted.

In fig. 4 (sectional view) and fig. 5 (plan view), newly disclosed are: the metal plate 7 (the 2 nd metal plate), the through hole 14 (the 4 th through hole) of the metal plate 2, the resist 8 (the 2 nd resist), the insulating plate 9 (the 2 nd insulating plate), and the through hole 10 (the 6 th through hole) and the through hole 11 (the 5 th through hole) of the 2 nd insulating plate 9. The insulating plate 9, the metal plate 7, and the resist 8 are disposed on the position P2 side. The characteristics of the insulating plate 9, the through-hole 10, and the through-hole 11 extending in the XY direction correspond to the characteristics of the insulating plate 5, the through-hole 6, and the through-hole 13, respectively. The features of resist 8 correspond to the features of 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 that of the through hole 11. The plurality of through holes 10 are arranged in a circular shape so as to surround the metal plate 7 around the metal rod 1.

In fig. 6 (schematic diagram), the metal bar 1 of the electrical conductor is the cathode to be supplied with a negative voltage (e.g., -6,000V). The metal plate 7 is an anode to which a positive voltage (for example, ground voltage 0V) is supplied. The metal plate 3 is a floating member to which no voltage is supplied. Thus, the corona discharge region C2 is generated. The corona discharge region C2 is a dome-shaped image based on the tip of the metal rod 1 and the metal plate 7. With the corona discharge region, air (atmosphere) is electrolyzed to generate ions (negative ions) and ozone. These ions and ozone wind flow from the position P1 to the position P2, and air 30 flows through the through-holes 10 of the insulating plate 9. Further, the flow direction of the ion wind and the ozone wind is secured in a predetermined direction (the direction from the position P1 to the position P2) by a fan described later, and the wind volumes thereof are accelerated. Embodiment 2 is a device mainly targeting the amount of ozone generation (i.e., ozone enrichment), and is determined by structural design, electrical design, and the like.

In fig. 6 (schematic view), the metal plate 3 is a floating member (floating) to which no voltage is supplied. The details will be described with reference to fig. 7 and property tables 1 to 4 described later.

In embodiment 2, 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 faces the metal plate 7 with the tip of the metal rod 1 interposed therebetween. In other words, the "structural design in which the anode and the cathode are in a positional relationship with each other and the anode and the floating electrode are in a relationship with each other" from the viewpoint of the Z axis can be said. Thus, the amount of ozone generated by corona discharge can be controlled. The insulating plate 9 is disposed between the anode (metal plate 7) and the metal rod 1. In other words, the cathode (the tip end portion of the metal rod 1) is disposed on the upstream side of the ion wind and the ozone wind. The insulating plate 9 is disposed 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 the contaminants adhering to the metal plate 7 (anode side). Therefore, improvement in maintainability can be expected. Further, since the metal plate 7 is covered with the resist 8, the amount of contaminants adhering to the metal plate 7 can be extremely suppressed.

In embodiment 2, the thickness of the insulating plate 9 is 1.6 mm. The diameter of the through hole 11 of the insulating plate 9 was 3.2 mm. The diameter of the through-hole 10 of the insulating plate 9 was 6 mm. The diameter of the metal plate 7 is 8 mm. The diameter of the metal plate 7 is smaller than the diameter (10mm) of the metal plate 3. 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 between the two through holes 6 in the middle stage is 16 mm. The arrangement pitch of 3 through holes 6 in the Y direction in fig. 5 is 7 mm. Fig. 16, which will be described later, also describes some of them.

In example 2, the amount of ozone generated was measured. It is measured to be 0.05ppm or less. The measurement conditions were as follows: a measuring instrument was set at a position 50mm from the apparatus. Further, a reference value (0.05ppm or less) determined by JIS (japanese industrial standards) is an index.

In view of the results, although not shown, the amount of ozone measured in the case of using another metal plate having a diameter larger than that of the metal plate 7 was 0.05ppm or more. Therefore, it can be understood that the amount of ozone generated is small and good in the case of using the metal plate 7 having a small diameter as in example 2. In view of this result, although not shown, the size of the through hole 11 (5 th through hole) is correlated with the amount of ozone generated. For example, if the size of the through-hole 11 is reduced, the amount of ozone generated decreases. In this viewpoint, the through-hole 11 may not be provided. In this case, the amount of ozone generated becomes the minimum value.

In embodiment 2, "a positional relationship in which an anode and a cathode are opposed to each other and a relationship in which an anode and a floating electrode are opposed to each other from a viewpoint of the Z axis" is one element for forming a preferable corona discharge shown in fig. 6. This is because, for example, if the metal plate 3 (floating electrode) or the metal plate 3 (floating electrode) and the insulating plate 5 are added or deleted, the amount of ozone generated can be controlled. The details will be described with reference to fig. 7 and property tables 1 to 4 described later.

Example 3

Fig. 7 is a sectional view simply illustrating embodiment 3 of the present invention (a part of an apparatus mainly for generation of ozone). The same contents as those of the 1 st embodiment and the 2 nd embodiment are given the same reference numerals and their description is omitted.

Fig. 7 (cross-sectional view) discloses 4 devices using examples 1 to 4. Example 4 corresponds to embodiment 2 (fig. 4). Reference numeral 15 denotes a substrate which supports the metal rod 1 and serves as a cathode by supplying a negative voltage to the metal rod 1. The substrate 15 may have the same characteristics as those of the insulating plate 5. Reference numeral 16 denotes a support body that supports the substrate 15 and the insulating plate 5. The distance D between the electrode exposed from the clad body 2 as the tip of the metal rod 1 and the substrate 15 was 15 mm. Example 3 discloses a metal plate 40 attached to an insulating plate 9. The metal plate 40 is arranged on the metal bar 1 side inverted with respect to the arrangement of the metal plate 7 of the apparatus of example 4. The metal plate 40 has the same characteristics as the metal plate 7. Example 2 is a configuration excluding the insulating plate 5 and the metal plate 3 for example 4. Example 1 is a configuration excluding the insulating plate 5 and the metal plate 3 with respect to example 3. In examples 1 to 4, distances (mm) between the tip end of the metal rod 1 and the corresponding metal plate 7 or metal plate 40 are represented by X1 to X4, respectively, from the viewpoint of the Z axis.

Fig. 8 to 11 are characteristic diagrams showing the amount of ozone generated (ppm) corresponding to the distance X1 to the distance X4 corresponding to example 1 to example 4 disclosed in fig. 7, respectively. Figure 8 compares the ozone production of examples 1 and 2. The metal plate 40 in example 1 is located on the side of the insulating plate 9 facing the metal rod 1, and the metal plate 7 in example 2 is located on the side (back side) of the insulating plate 9 not facing the metal rod 1. To produce a predetermined amount of ozone, the distance X2 in the apparatus of example 2 can be reduced relative to the distance X1 in the apparatus of example 1. That is, the structure of example 2 in which the insulating plate 9 is sandwiched between the tip (cathode) of the metal rod 1 and the metal plate 7 can expect the most efficient ozone generation amount. Namely, the device can be miniaturized. Further, it can be understood that the amount of dirt adhering to the metal plate 7 is smaller than that of the metal plate 40. This can be expected to reduce maintenance costs. Figure 9 compares the ozone production of examples 3 and 4. Examples 3 and 4 use a metal plate 3 of floating potential and a corresponding insulating plate 5 as a gate. The cases of the metal plate 7 and the metal plate 40 with respect to the insulating plate 9 are the same as those of examples 2 and 1, respectively. To produce a predetermined amount of ozone, the distance X4 in the device of example 4 can be reduced relative to the distance X3 in the device of example 3. Also, it can be understood that the presence of the insulating plate 5 in examples 3 and 4 further reduces the ozone generation amount in absolute amounts relative to examples 1 and 2. Figure 10 compares the ozone production of examples 1 and 3. Figure 11 compares the ozone production of examples 2 and 4. It can be understood that the presence of the insulating plate 5 of examples 3 and 4 is effective in controlling the amount of ozone generated. Here, the devices of example 2 and example 4 shown in fig. 11 are effective for the amount of ozone generation required by the customer, respectively. For example, the apparatus of example 2 obtains the maximum sterilization capability in a space where a human body or the like does not exist. Further, the amount of contamination adhering to the metal plate 7 can be minimized. For example, the device of example 4 can efficiently generate ozone in a space where a human body or the like exists with a small device configuration. Further, the amount of contamination adhering to the metal plate 7 can be minimized. Further, the reference value determined by JIS (japanese industrial standards) in a space where a human body or the like exists is 0.05ppm or less.

Example 4

Fig. 12 is a sectional view simply illustrating embodiment 4 of the present invention (a part of a system in which an apparatus mainly for generating ions and an apparatus mainly for generating ozone are incorporated). The same contents as those of embodiments 1 to 3 are given the same reference numerals and their description is omitted.

In fig. 12, the system 100 includes a housing, a Fan (Fan)220 as a blower, a PWR210 as a power supply device, a module 200 for generating ions and ozone, and a connection D1 for supporting the module 200 in the housing. The PWR210 is supplied with power from outside the system 100, generates a dc voltage of-6 Kv indicated by reference numeral S, and supplies the voltage to the module 200. The PWR210 also supplies a predetermined voltage to the fan 220. The fan 220 sucks external air 230 from a suction port (corresponding to the left dotted line) provided in the casing, and discharges

air

231 and 232 from

discharge ports

228 and 229 provided in the casing. The induced wind flows from the position P1 to the position P2. The fan 220 has a function of assisting the ozone wind or the ion wind generated by the module 200 itself as described above.

In the cross-sectional view shown in fig. 12, the module 200 has 3 devices (devices mainly for generation of ions) 201 to 203 corresponding to

embodiment

1 and 1 device (devices mainly for generation of ozone) 204 corresponding to embodiment 2 and example 4. These devices 201 to 204 are arranged in the Y direction as shown in FIG. 12. Since fig. 12 is a cross-sectional view, although not shown in fig. 12, two devices 201 to 204 are arranged in the X direction as will be described later using fig. 13 to 17. A voltage of-6 Kv and GND are supplied from the PWR210 to the devices 201 to 204. The module 200 is composed of 5 insulating plates B1 to B5. From the position P1 side to the position P2 side, insulating plates B1 of the metal rod 1 of the supporting device 204, insulating plates B2 of the metal rod 1 of the supporting devices 201 to 203, insulating plates B3 of the metal plate 246 (fig. 15) of the supporting devices 201 to 203, and insulating plates B4 and B5 which serve as safety functions (electric shock prevention) are provided. The insulating plate B3 corresponds to the insulating plate 5 (fig. 1). The insulating plate B2 also serves as an insulating plate of the device 204, and corresponds to the insulating plate 5 in fig. 4. The insulating plate B4 also serves as an insulating plate of the device 204, and corresponds to the insulating plate 9 in fig. 4. The features of the devices 201-204 are as described above. The 5 insulating plates B1 to B5 are supported by

support bodies

233, 234, 235, respectively, which correspond to the support body 16 shown in fig. 7. The dimensions (mm) of the various parts of the module 200 are shown in fig. 12. The exposed length L1 of the metal bar 1 was 1 mm. The length L2 of the clad body 2 to clad the metal rod was 14 mm. The distance L3 from the tip of the metal rod 1 to the insulating plate B4 in each of the devices 201 to 203 was 1.6 mm. The distance L4 of the device 204 from the top end of the metal rod 1 to the insulating plate B4 was 8.2 mm. The distance L5 of the device 204 from the tip of the metal rod 1 to the metal plate 3 of the insulating plate B2 was 8.4 mm. The distance L6 between the insulating plate B4 and the insulating plate B5 was 1 mm. The length L7 of the portion of the support body 234 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 5mm, respectively. The length L9 of the portion of the support body 234 supporting the insulating plate B3 and the insulating plate B4 was 10 mm. The length L10 of the portion of support body 235 supporting insulating plate B2 and insulating plate B4 was 16.6 mm. In order to cut down the manufacturing cost of the module 200, it is desirable that each insulating plate, each metal rod, and each sheathing body have the same characteristics, respectively. For example, the insulating plate can be manufactured in a simplified process by making the hole specifications of the insulating plates the same. The insulating plates B1, B2, B3, B4, B5 can be obtained from a larger 1-piece insulating substrate. Furthermore, the insulating plate B2 also serves as an insulating plate for the device 204, thereby reducing the manufacturing cost of the module 200. The insulating plate B4 also serves as an insulating plate for the device 204, thereby reducing the manufacturing cost of the module 200. Further, the manufacturing cost of the system 100 can be reduced by using the devices (devices mainly generating ions) 201 to 203 and the device (device mainly generating ozone) 204 as one module. As shown in fig. 13 to 17 to be described later, a plurality of devices (devices mainly involving generation of ions) 201 to 203 are mounted on one insulating substrate, whereby manufacturing cost can be reduced. As shown in fig. 13 to 17 described later, a plurality of devices (devices mainly generating ozone) 204 are mounted on one insulating substrate, whereby the manufacturing cost can be reduced. Further, 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 described above, the distance L4(8.2mm) from the tip end of the metal rod 1 to the insulating plate B4 of the device 204 is maintained, and the distance L3 from the tip end of the metal rod 1 to the insulating plate B4 of the device 203 is set to 1.6mm to 6.6mm by adding an amount corresponding to the length L7(5mm) of the portion supporting the insulating plate B1 and the insulating plate B2. This enables the reduction of 5 insulating plates to 4 insulating plates. This is because the insulating substrate B1 and the insulating substrate B2 can be realized by one insulating substrate. It is desirable that the diameters of the holes 236 and 238 (see fig. 16 and 17) of the insulating plate B4 and the insulating plate B5, which are safety functions (electric shock prevention), be smaller than the diameters of the

discharge ports

228 and 229 of the case. It is desirable that the arrangement of the

holes

236, 238 of the insulating plate B4 and the insulating plate B5 is not synchronized with the arrangement of the

discharge ports

228, 229 of the casing.

Fig. 13 to 17 are plan views of insulating plates B1 to B5 constituting a module 200 according to example 4 (fig. 12) of the present invention. Fig. 13 is a plan view showing the insulating plate B1 from the side of the position P1. Fig. 14 is a plan view showing the insulating plate B2 from the side of the position P1. Fig. 15 is a plan view showing the insulating plate B3 from the side of the position P2. Fig. 16 is a plan view showing the insulating plate B4 from the side of the position P2. Fig. 17 is a plan view showing the insulating plate B5 from the side of the position P1. The insulating plate B1 shown in fig. 13 corresponds to the device 204 in which two are arranged in the X direction. The insulating plate B2 shown in fig. 14 corresponds to the

devices

201, 202, and 203 arranged in two in the X direction, that is, 6 devices in total and the device 204 arranged in two in the X direction. The insulating plate B3 shown in fig. 15 corresponds to a total of 6 devices, which are the two

devices

201, 202, and 203 arranged in the X direction. The insulating plate B4 shown in fig. 16 corresponds to the

devices

201, 202, and 203 arranged in two in the X direction, that is, 6 devices in total and the device 204 arranged in two in the X direction. The insulating plate B5 (4 th insulating plate) shown in fig. 17 corresponds to the device 204 in which two are arranged in the X direction. Each of the 5 insulating plates B1 to B5 has a plurality of identical holes (6 holes around each device, and typically, the

holes

236 and 238 in fig. 16 and 17 are denoted by reference numerals and shown). This is because the ozone wind and the ion wind flow from the position P1 to the position P2 with high efficiency, and the blowing efficiency of the fan 220 is also improved. For example, the holes provided in the insulating plates are implemented by at least one of a plurality of holes having the same number and a hole having the same size, which are arranged in synchronization with each other. In fig. 13, 1 metal plate 240 after plating is attached to the insulating plate B1. The metal rod 1 is soldered to the metallizations 240a, 240b located at the centers of the 6 holes. The metallized portion 240c located on the upper portion of the insulating plate B1 is a connection portion to which-6 Kv is supplied from the power supply PWR 210. In fig. 14, two

metal plates

242 and 244 are attached to the insulating plate B2 after plating. The 1 st metal plate 242 supports the metal bar 1 of each of the

devices

201, 202, 203. The 1 st metal plate 242 is disposed on the insulating plate B2 on the side of the position P1. The 2 nd metal plate 244 in fig. 14 is disposed on the insulating plate B2 on the side of the position P2. Thus, the 2 nd metal plate 244 is shown in dashed lines. The metal plating 242a of the 1 st metal plate 242 located above the insulating plate B2 is a connection part to which-6 Kv is supplied from the power supply device PWR 210. The 2 nd metal plate 244 located at the lower portion of the insulating plate B2 is electrically floating. The 1 st metal plate 242 and the 2 nd metal plate 244 have the same characteristics as those of the metal plate 240 of fig. 13. In fig. 15, 1 metal plate 246 after plating is attached to the insulating plate B3. As shown in fig. 12, GND potential is supplied to the metal plating 246a located at the center of the 6 holes. In fig. 16, 1 metal plate 248 after plating is attached to the insulating plate B4. As shown in fig. 12, GND potential is supplied to the metal plating 248a located at the center of the 6 holes. The portions of the insulating plate B4 corresponding to the

devices

201, 202, and 203 are not provided with a metal-plated substrate. In fig. 17, no metal-plated substrate is attached to a portion corresponding to the device 204. The insulating plates B1 to B5 are provided with holes for supporting the supporting members at the peripheral portions (typically, the

holes

250, 252, 254, 256, and 258 for the supporting member 234 in fig. 12 are shown in fig. 13 to 17). In addition, the supporting

bodies

234 and 235 in fig. 12 may reach the insulating plate B5. In the insulator B5 of fig. 17, a polygonal hole 260 is provided on the right side as an overflow hole for soldering.

Example 5

Fig. 18 is a sectional view simply illustrating embodiment 5 of the present invention (a part of a system in which an apparatus mainly for generating ions and an apparatus mainly for generating ozone are incorporated). The same contents as those of embodiments 1 to 4 are given the same reference numerals and their description is omitted.

In fig. 18, a switch SW. for performing electrical control is also added. Switch SW. has one input terminal 262 and two

output terminals

264, 266. The switch SW. supplies the ground potential GND connected to the input terminal 262 to either of the two

output terminals

264 and 266 connected to the metal plate 3 and the metal plate 7, respectively, by the control signal sig. The other metal plate that is not selected is electrically floating. According to embodiment 5, all of the devices 201 to 203 and 204 of embodiment 4 shown in fig. 12 can have the same configuration. In addition, the adaptability of the module 200 shown in fig. 12 can be improved. For example, by changing the devices 201 to 204 in fig. 12 to the same structure as that of the 5 th embodiment in fig. 18 and supplying a plurality of control signals sig corresponding to the switches SW. included in the devices, it is possible to perform different control for each device. As a result, the system 100 can flexibly control the ratio of the ion generation amount to the ozone generation amount. Further, the switch SW. may have a function of not selecting any of the two output terminals by the control signal sig. Thus, the system 100 can flexibly control the absolute values of the ion generation amount and the ozone generation amount.

Example 6

Fig. 19, 20, 21 and 22 are sectional views and illustrations of members for simply illustrating embodiment 6 of the present invention (an apparatus mainly for generating ions and an apparatus for generating ions and ozone so that the ions and ozone coexist). That is, the 6 th embodiment of the present invention has two features. The same contents as those of embodiments 1 to 5 are given the same reference numerals and their description is omitted.

In fig. 19 (sectional view), a metal tube 50, a metal plate 31, a solder 54, insulating plates B6, B7, B10, and through

holes

17, 18, 19, and 20 are newly disclosed. As examples of the metal tube 50, a grommet 51 shown in fig. 20, a sleeve 52 shown in fig. 21, and a knitted metal 53 shown in fig. 22 are disclosed. The insulating plate B6 includes through holes 18. The insulating plate B7 includes through holes 19 and through holes 20. The insulating plate B10 includes through holes 17. The through holes 17, 18, 19, and 20 correspond to fig. 24, 25, and 26, which are plan views of the substrate, respectively, described later. The solder 54 attached to the substrate B10 electrically connects the metal bar 1 and the lead S1 (fig. 24). The solder 54 attached to the substrate B6 electrically connects the metal can 50 and the lead 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 through holes 19. The grommet 51 shown in fig. 20, the sleeve 52 shown in fig. 21, and the braided metal 53 shown in fig. 22, which are associated with the metal tube 50, are each a metal body, and are made of steel (steel) or Stainless steel (SUS) or alloy steel containing chromium or chromium and nickel and being hard to rust, and steel having a carbon content of 1.2% by mass or less and a chromium content of 10.5% or more by definition can be selected in the ISO (international organization for standardization) standard), aluminum, brass (copper-zinc alloy), or the like. 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), and the like are disclosed. In consideration of deterioration of the metal tube 50 due to corona discharge and maintainability against adhesion of dust and the like, stainless steel is preferable. The grommet 51, the sleeve 52, and the braided metal 53 each have a cavity portion in the center thereof, which penetrates the metal rod 1 and the clad 2. The cladding 2 has a diameter substantially the same as the inner diameter of the cavity portion. The metal can 50 may also be protected by a Solder leveler (Solder leveler) or plating as a Solder coating. In the case where the metal can 50 is a metal that is easily oxidized, the surface of the metal is protected. In addition, deterioration of the metal due to corona discharge with a very high electric field is suppressed. The thickness of the solder leveler or plating layer is included in the thickness of the metal cylinder 50 described later. Further, since the grommet 51, the sleeve 52, and the braided metal 53 can be electrically connected to the insulating plate B6 and supported by the insulating plate B6 by the solder 54, the manufacturing cost can be reduced as compared with the metal plate 31 made of metal plating (metalizing) such as copper foil.

As the feature 1, embodiment 6 is a device that substantially targets only the amount of ions generated (i.e., ion enrichment) in the relationship between the metal rod 1 and the metal cylinder 50, and generates almost no ozone. On the other hand, as the 2 nd feature, the relation between the metal rod 1 and the metal plate 31 is aimed at a device that generates ions and ozone in a manner that the ions and ozone coexist. They are determined by structural design, electrical design, and the like. Specifically, the metal tube 50 extends in the same direction as the metal rod 1. The metal can 50 extends in the Z direction so as to surround the covering body 2 and penetrate the insulating plate B6. The metal can 50 is connected to the solder 54 on the left side of the insulating plate B6 and exposed 2.0mm on the right side of the insulating plate B6. The length of the tip (position P2 side) of the metal rod 1 exposed without being covered with the covering body 2 was 2 mm. The metal bar 1 of the electrical conductor is the cathode to be supplied with a negative voltage (e.g., -6,000V). The metal can 50 is an anode to which a positive voltage (for example, ground voltage 0V; GND) is to be supplied. Then, a corona discharge region C3 (not shown) having a three-dimensional dome-shaped image based on the position where 2.0mm of the tip of the metal rod 1 and the metal tube 50 are exposed is generated. This corona discharge region C3 is similar to corona discharge region C1 shown in fig. 3 (the structural design of the portion of the inner cathode within the corona discharge region), but the shape of C3 is different from the shape of C1. In detail, the shape of the corona discharge region C3 is longer than the shape of C1 in the Z direction and shorter than the shape of C1 in the Y direction. The reason for this is that the extending direction of the metal tube 50 is the same as the extending direction of the metal rod 1. The reason for this is that the distance between the tip of the metal rod 1 and the position of the metal tube 50 exposed by 2.0mm (10.0mm to 8.0mm +2.0mm) is longer than the distance between the tip of the metal rod 1 and the position of the metal plate 31. The distance is defined from a viewpoint in the Z direction. The through-holes 19 of the insulating plate B7 do not interfere with the formation of the corona discharge region C3. Thus, the corona discharge region C3 produces a greater amount of ions than the corona discharge region C1. On the other hand, the amount of ozone generated by the corona discharge region C3 is much smaller than the amount of ozone generated by the corona discharge region C1 (substantially zero 0). The thickness of the metal can 50 at the position of the metal can 50 exposed to 2.0mm and the distance (10.0mm) are important from the viewpoint of the amount of ozone generated by the corona discharge region C3. Specifically, if the distance is further shortened (10.0mm), ozone is generated. In addition, if the thickness of the metal tube 50 is increased, ozone is generated. This can be understood by using the experimental example of embodiment 2 described above in which the metal plates 7 have different diameters. In other words, the area of the metal plate 7 based on the difference in the diameter value (Y-axis direction) of the metal plate 7 can be replaced by the thickness of the metal tube 50 by analogy. As shown in fig. 19, the thickness of the metal tube 50 is smaller than the length obtained by subtracting the radius of the through hole of the ring from the radius of the ring of the metal plate 31, and is preferably 0.5mm or less. In order to make the amount of ozone generated substantially zero 0, the thickness of the metal cylinder 50 must be 0.2mm or less while maintaining the distance (10.0mm or 10mm or more). The characteristics of the ions and ozone under these conditions are shown in fig. 29 described later. The terminal end portion of the metal can 50 (the thickness of the metal can 50 is 0.2mm or less) associated with the position of the metal can 50 where 2.0mm is exposed is a reference point of the corona discharge region C3 formed between it and the tip end of the metal rod 1. The electric field intensity at the terminal portion is highest. The surface of the metal can 50 exposed 2.0mm on the right side of the insulating plate B6 also contributes slightly to the corona discharge. Next, attention is paid to the metal plate 31. The features of the metal plate 31 correspond to those of the metal plate 3 (fig. 1) as described above. The insulating plate B7 is similar to the insulating plate 5 except that it has through holes 19. However, the distance relationship between the metal rods 1 is different from the reference of the tip ends thereof. Specifically, since the insulating plate B7 has the through-holes 19, the distance from the tip of the metal rod 1 to the metal plate 31 is farther than that in example 1(metal plate 3) from the viewpoint of the Y direction and is closer than that in example 1(metal plate 3) from the viewpoint of the Z direction. Then, a corona discharge region C4 (not shown) having a three-dimensional dome-shaped figure is generated based on the positions of the tip of the metal rod 1 and the metal plate 31. This corona discharge region C4 is similar to corona discharge region C1 shown in fig. 3 (the structural design of the portion of the inner cathode within the corona discharge region), but the shape of C4 is different from the shape of C1. In detail, the shape of the corona discharge region C4 is shorter than the shape of C1 in the Z direction and longer than the shape of C1 in the Y direction. Thus, the corona discharge region C4 produces a smaller amount of ions than the corona discharge region C1. On the other hand, the corona discharge region C4 generates a larger amount of ozone than the corona discharge region C1. Accordingly, the corona discharge region C4 generates ions and ozone so that the ions and ozone coexist. In the case where the metal plate 31 is made of a material such as stainless steel (SUS) which can maintain its support 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 thus, improvement of durability can be expected. In this case, the stainless steel (SUS) of the metal plate 31 has the through-hole 19 and the through-hole 20.

Example 7

Fig. 23 to 29 are a cross-sectional view (fig. 23) and a plan view (fig. 24 to 28) that simply illustrate a part of a system in which an apparatus mainly for generating ions, an apparatus mainly for generating ions and ozone, and an apparatus mainly for generating ozone are incorporated, and a switching circuit that controls these apparatuses, and a table (fig. 29) showing conditions and characteristics of the switching circuit according to example 7 of the present invention are illustrated. The same contents as those of embodiments 1 to 6 are given the same reference numerals and their description is omitted.

In fig. 23, the system 101 has a device 206, and the device 206 includes the device of embodiment 6 (fig. 19), a configuration similar to that of a part (insulating plate 9, metal plate 7, resist 8) of embodiment 2 (fig. 4), and a configuration similar to that of a part (insulating plate B5) of embodiment 4 (fig. 12). The system 101 further comprises a switching circuit 227 of the control means 206. In the device 206, a voltage of-6 Kv and GND are supplied from the PWR210 to the lead S1 via the switch circuit 227. The module 205 is composed of 5 insulating plates B6 to B10. From the position P1 side toward the position P2 side, the insulating plate B10 supporting the metal rod 1 of the device 206, the insulating plate B6 supporting the metal cylinder 50, the insulating plate B7 supporting the metal plate 31, the insulating plate B8 supporting the metal plate 7, and the insulating plate B9 functioning as a safety function (preventing electric shock) are provided. Top views of 5 insulating plates B6 to B10 are disclosed in fig. 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). Insulating panel B9 of fig. 28 is similar to half of insulating panel B5 (fig. 17). The insulating plate B10 in fig. 24 further includes a plurality of through holes through which the plurality of leads S1, S2, S3, and S4 pass. The insulating plate B6 in fig. 25 further includes a plurality of through holes through which the plurality of leads S2, S3, and S4 pass. The insulating plate B7 in fig. 26 further includes a plurality of through holes through which the plurality of leads S3 and S4 pass. The insulating plate B8 of fig. 27 further includes a through hole through which at least the lead S4 penetrates. The substrate B10 of fig. 24 has a metal pattern (which is indicated by a Dashed line) that electrically connects the metal bar 1 and the lead S1. The substrate B6 of fig. 25 has a metal pattern (broken line) that electrically connects the metal can 50 and the lead S2. The substrate B7 in fig. 26 has a metal pattern (broken line) that electrically connects the metal plate 31 and the lead S3. The substrate B8 of fig. 27 has a metal pattern (broken line) that electrically connects the metal plate 7 and the lead S4. The system 101 has a device 206 with 3 features. That is, the present invention has two features of the foregoing 6 th embodiment (a device mainly generating ions, a device generating ions and ozone in a manner that ions and ozone coexist) and the feature of the foregoing 2 nd embodiment (a device mainly targeting the amount of ozone generated (i.e., ozone enrichment)). The system 101 includes a connection portion D1 that supports 5 insulating plates B6 to B10 in the casing. The reference numerals of the supporting members respectively supported between the 5 insulating plates B6 to B10 are omitted. As the metal pattern shown by a dotted line (Dashed line) disclosed in each of fig. 24 to 27, a plating (metalizing) pattern such as a copper foil, another conductor lead, a Solder leveler (Solder leveler) as a Solder coating layer, or a plating layer can be selected. The metal pattern indicated by a one-dot chain line can be defined as a part of the plurality of leads S1, S2, S3, S4. The insulating plate B10, the insulating plate B6, the insulating plate B7, and the insulating plate B8 each have a resist (not shown) on their surface. The agent is an insulating material. These resists protect at least the aforementioned metal pattern, the lead S, and the metal plate (e.g., 50, 31, 7; fig. 23). These resists exhibit the same characteristics as those of the resist 4 and the resist 8 shown in fig. 4 described above. That is, these insulating boards as printed wiring boards PCBs of FR4 and the like are of the following three-layer construction: the metal pattern, the lead wire S, and the metal plate are provided on the surfaces thereof, and the resist is provided on the surfaces of the metal pattern, the lead wire S, and the metal plate. In the portion where the metal pattern is not present, a two-layer configuration of an insulating plate and a resist is preferable. In the case where the metal plate 7 is made of a material such as stainless steel (SUS) which can maintain its support 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 thus, improvement of durability can be expected. In this case, the stainless steel (SUS) of the metal plate 7 has a through hole 10 and a through hole 11 (fig. 5). Further, the maintainability in the case of cleaning the contamination of stainless steel (SUS) attached to the metal plate 7 is improved. Alternatively, the stainless steel (SUS) of the metal plate 7 to which the contaminants are attached can be easily replaced with a new stainless steel (SUS) of the metal plate 7. The system 101 includes: a housing having a suction port and a discharge port; and a blower fan in which the metal tube 50, the metal plate 31, and the metal plate 7 are arranged in this order from the suction port side (or the blower fan 220 side) of the casing. Due to the flow of the air 231, contaminants and the like are not easily attached to the metal can 50, which is the most difficult to maintain. Then, contaminants and the like are less likely to adhere to the metal plate 31 having the through-hole 19.

A table (fig. 29) showing characteristics corresponding to a plurality of conditions of the switch circuit 227 included in the system 101 of fig. 23 will be described in detail. Fig. 29 discloses 7 conditions on the horizontal axis (X) and 4 voltage states and characteristic characteristics of the leads S1 to S4 on the vertical axis (Y), and the relative values of the amount of generated ions and the amount of ozone. Here, the leads S1 to S4 can be understood as signals S1 to S4 controlled by the leads via a switch circuit. Condition 1 indicates a so-called operation stop state of the system 101. Condition 2 indicates a state in which a corona discharge state is generated only at S1 and S2. Condition 3 indicates a state in which a corona discharge state is generated only at S1 and S3. Condition 4 indicates a state in which a corona discharge state is generated only at S1 and S4. Condition 5 indicates a state in which a corona discharge state is generated at S1, S2, and S3, respectively. Condition 6 indicates a state in which a corona discharge state is generated at S1, S3, and S4, respectively. Condition 7 indicates a state in which a corona discharge state is generated at S1, S2, S3, and S4, respectively. Condition 2 shows the characteristic of ion enrichment (the amount of ozone is substantially zero 0) as described above. Condition 4 shows the characteristic of ozone enrichment as described above. Condition 3 indicates the property of allowing ions and ozone to coexist. The conditions 5 to 7 are the total of the conditions 2 to 4, respectively. Condition 7 represents the characteristic that the amount of ions is the largest.

Conditions

6 and 7 indicate the characteristic that the amount of ozone is the largest. The combination thereof by the switch circuit 227 satisfies various customer requirements, respectively. Further, the potential of the lead not selectively controlled floats. Other conditions can also be set. For example, the potentials at the time of selection control of S2, S3, and S4 as anodes are independently controlled from the normal voltage of 0v to other voltages (for example, ± 1kv, ± 0.5kv, and combinations thereof). The power supply device PWR210 generates another voltage and supplies the generated voltage to the switching circuit 227.

The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and can be implemented in other various forms without departing from the scope of the present invention. For example, the metal rod 1 may be a needle (needle) or may have various other shapes (pen-like, triangular pyramid, rectangular pyramid, or cylinder). The metal rod 1 may be a Wire (Wire) or a twisted Wire (Strand Wire). The metal rod 1 may be carbon fiber. The tip of the metal rod may also be shaped as a sharp needle. The insulating material 2 may be a two-layer structure of an insulator and a sheath. The 1 st and 2

nd metal plates

3 and 7 may be stainless steel. The metal plate may be a metal sheet or a metal film (conductive flexible material). The 1 st insulating plate 5 and the 2 nd insulating plate 9 may be paper phenol substrates (FR-1, FR-2), paper epoxy substrates (FR-3), glass composite substrates (CEM-3), glass polyimide substrates, fluorine substrates, glass PPO substrates, or the like. The shape of the through-hole 6 is not limited to a circle of a predetermined radius. For example, an ellipse may be used. Shapes other than circular may be used. The arrangement of the plurality of through holes 6 is not limited to the circular arrangement. The annular metal plate 3 having the through-hole 12 may include the through-hole 6 of the 1 st insulating plate 5, or may be disposed outside the through-hole 6. The positive voltage is not limited to the ground voltage 0v (gnd). The absolute values of the voltages of the cathode and anode may be switched. An alternating current signal may also be supplied to the cathode and anode. Further, a predetermined bias value may be given to the ac signal. The embodiments 1 to 7 can be appropriately combined regardless of the explicit or explicit description thereof. For example, a plurality of devices 206 can be arranged as the

devices

201, 202, 203, and 204. For example, the

devices

201, 202, 203, 204, 206 can be appropriately combined. For example, the module 200 and the module 205 can be combined appropriately. The length of the tip of the exposed metal rod 1 is 1.0mm in the 1 st embodiment and 2.0mm in the 6 th embodiment. The optimum corona discharge region differs for these lengths depending on the film thickness of the coating 2. This is because the shape of the optimum corona discharge region C4 changes at the tip of the metal tube 50 as viewed from the tip of the metal rod 1 due to the thickness of the coating body 2. For example, in the case where the clad body 2 is thick, the exposed length of the metal rod 1 is 2.0 mm. In the case where the clad body 2 is thin, the exposed length of the metal rod 1 is 1.0 mm. The scope of the present invention is not limited to the above-described embodiments or combinations thereof, and extends to the subject matter recited in the claims, equivalents thereof, and modifications thereof.

Industrial applicability

The present invention can be used for an apparatus that generates at least either one of ions and ozone in association with Corona discharge (Corona discharge).

Description of the reference numerals

1. A metal rod; 2. a cladding body; 3. 7, 40, 246, 31, metal plate; 50. a Metal cylinder (Metal Tube); 51. a Grommet (Metal Grommet, Metal member with holes: Metal grommets, Metal Eyelet); 52. a Sleeve (Metal Sleeve); 53. braided metal (Braided metal); 54. solder (Solder); 4. 8, resist; 5. 9, B1, B2, B3, B4, B5, B6, B7, B8, B9, B10 and an insulating plate; 6. 10, 11, 12, 13, 14, 236, 238, 250, 252, 254, 256, 258, 17, 18, 19, 20, through-holes; 15. a substrate; 16. 233, 234, 235, a support; 100. 101, a system; 200. 205, modules; 201. 202, 203, 204, 206, device; 210. a power supply device PWR; 220. a blower fan; 227. a switching circuit; 228. 229, an exhaust port; c1, C2, C3, C4, corona discharge region; d1, a connection; SW., a switch; sig, control signals; s1, S2, S3, S4, lead (lead signal).

Claims

1. An apparatus, comprising:

a metal cylinder having a 1 st through hole;

a metal rod penetrating the 1 st through hole;

a coating body that penetrates the 1 st through hole and electrically insulates the metal tube and the metal rod;

a 1 st insulating plate having a 2 nd through-hole through which the metal tube, the metal rod, and the coating body pass;

a 1 st metal plate having a 3 rd through hole, the 3 rd through hole having a larger through diameter than a cross-sectional diameter of the clad, the metal rod and the clad being inserted through the 3 rd through hole,

the device generates at least either ions or ozone.

2. The apparatus of claim 1, wherein,

the metal tube is composed of any one of a grommet, a sleeve, and a woven metal.

3. The apparatus of claim 1 or 2,

the 1 st metal plate has a ring shape having the 3 rd through hole,

the thickness of the metal tube is smaller than a length obtained by subtracting the radius of the 3 rd through hole from the radius of the ring.

4. The apparatus of claim 3, wherein,

the thickness of the metal cylinder is less than 0.5 mm.

5. The device according to any one of claims 1 to 4,

the device further includes a switch circuit for electrically floating either the metal cylinder or the 1 st metal plate.

6. The apparatus of claim 1, wherein,

the device further includes a casing having a suction port and a discharge port, the metal tube being disposed on the suction port side, and the 1 st metal plate being disposed on the discharge port side.

7. The apparatus of claim 1, wherein,

the apparatus further includes a 2 nd insulating plate supporting the 1 st metal plate, the 2 nd insulating plate having a 4 th through hole, the 4 th through hole having a diameter larger than a cross-sectional diameter of the clad, and through which the metal rod and the clad pass.

8. The apparatus of claim 1, wherein,

the metal rod has a tip end portion exposed from the clad body,

the device further comprises a housing having a suction opening and a discharge opening,

the metal tube, the 1 st metal plate, and the tip end portion of the metal rod are arranged in this order from the suction port toward the discharge port.

9. The apparatus of claim 1, wherein,

the metal rod has a tip end portion exposed from the clad body,

the apparatus further includes a 2 nd metal plate opposed to the 1 st metal plate with a tip end portion of the metal rod interposed therebetween.

10. The apparatus of claim 9, wherein,

the apparatus further includes a switch circuit for electrically floating at least one of the metal cylinder, the 1 st metal plate, and the 2 nd metal plate.

11. The apparatus of claim 10, wherein,

the switching circuit electrically floats any two of the metal can, the 1 st metal plate, and the 2 nd metal plate.

12. The apparatus of claim 9, wherein,

the 2 nd metal plate has a 5 th through hole centered on a tip end of the metal rod.

13. The apparatus of claim 12, wherein,

the apparatus further includes a 3 rd insulating plate supporting the 2 nd metal plate, the 3 rd insulating plate having a 6 th through hole centered on a tip end of the metal rod.

14. The apparatus of claim 13, wherein,

the 3 rd insulating plate is disposed between the tip of the metal rod and the 2 nd metal plate.

15. The apparatus of any one of claims 2 to 4,

the 1 st metal plate is stainless steel, i.e., SUS.

16. The apparatus of claim 12, wherein,

the 2 nd metal plate is stainless steel, i.e., SUS.

17. The apparatus of claim 8, wherein,

the device is also provided with a 4 th insulating plate,

the metal tube, the 1 st metal plate, the tip end portion of the metal rod, and the 4 th insulating plate are arranged in this order from the suction port toward the discharge port.

18. The apparatus of claim 9, wherein,

the device is also provided with a 4 th insulating plate,

the metal tube, the 1 st metal plate, the tip end portion of the metal rod, the 2 nd metal plate, and the 4 th insulating plate are arranged in this order from the suction port toward the discharge port.

19. The apparatus of claim 3 or 4,

the metal rod has a tip end portion exposed from the clad body,

the distance between the tip end portion of the metal rod and the metal tube is longer than the distance between the tip end portion of the metal rod and the 1 st metal plate.

20. The apparatus of claim 19, wherein,

the distance between the tip end of the metal rod and the metal tube is 10mm or more.

21. The apparatus of claim 20, wherein,

the thickness of the metal cylinder is 0.2mm or less.

22. The device according to any one of claims 1 to 4,

the device further includes a switch circuit for electrically controlling the metal tube and the 1 st metal plate.

23. The apparatus of claim 22, wherein,

the control of the switch circuit alternatively selects the metal cylinder and the 1 st metal plate.

24. The apparatus of claim 9, wherein,

the device further includes a switch circuit for electrically controlling the metal tube, the 1 st metal plate, and the 2 nd metal plate.

25. The apparatus of claim 24, wherein,

the control of the switch circuit selects at least any one of the metal cylinder, the 1 st metal plate, and the 2 nd metal plate.

26. The apparatus of claim 25, wherein,

control of the switching circuit selects at least any two of the metal cylinder, the 1 st metal plate, and the 2 nd metal plate.

27. The apparatus of claim 17 or 18,

the 4 th insulating plate has a 7 th through hole.

28. The apparatus of claim 1, wherein,

the terminal end of the metal cylinder is located between the 1 st insulating plate and the 1 st metal plate.

29. The apparatus of claim 7, wherein,

the terminal end of the metal can is located between the 1 st insulating plate and the 2 nd insulating plate.