JP4382100B2 - Ion generator - Google Patents

Description

The present invention relates to an ion generator.

Conventionally, an ion generator such as a static eliminator is known. This is a device for ionizing air by applying a high voltage to an ion generating electrode to cause corona discharge. As an ion generation method, a so-called needle electrode method is widely used, and in recent years, a so-called flat plate electrode method has been put into practical use.
The former needle electrode method usually uses air as an insulator, and generates ions from the tip of the needle electrode. In the latter plate electrode method, a material such as ceramics is used as a flat insulator (dielectric), an ion generating electrode is printed on one surface of the dielectric, and an induction electrode is provided on the other surface. A sandwich structure is formed. In addition, a method using these methods in combination is also employed.

For example, in Patent Document 1 below, a needle-like ion generating electrode (discharge electrode) and a dielectric electrode (metal electrode support plate) are arranged in a sandwich via a dielectric (insulator layer). A flat ion generating element (electrode assembly) is disclosed (see claim 2 of Patent Document 1). These two electrodes are detachably fixed to a fixing portion of the electrode assembly (specifically, a power feeding portion of the fixing portion) with screws (see FIG. 1 of Patent Document 1).
Patent Document 2 discloses a plate-like ion generating element in which an ion generating electrode (discharge electrode) and a dielectric electrode are arranged in a sandwich shape with a dielectric interposed therebetween. reference〕. A plug portion 17 (connector) that is detachably connected to the socket-type power supply portion is fixed and connected to the ion generating element.

However, since both the electrode assembly of Patent Document 1 and the ion generating element of Patent Document 2 are arranged in the air passage so as to block the flow of air from the fan, there is a problem that the wind pressure of the fan is lowered. There is.
Moreover, in the ion generator of the type disclosed in Patent Document 1 and Patent Document 2, the inner walls constituting the air passage are usually arranged in parallel with the opposing inner walls, so that the air containing ions is spread over a wide range. The problem was that the ions could not be sent and the generated ions could not be diffused efficiently.
JP 2005-216539 A JP 2006-228646 A

  In view of the above-mentioned problems, the problems of the present invention are as follows. 1) To provide an ion blower structure that does not reduce the wind pressure by a fan, and relates to an ion generator using a flat plate ion generating element, and 2) An ion generator has an ion air passage structure that can diffuse ions over a wide range without lowering the wind pressure by a fan.

As a result of intensive studies to solve the first problem described above, a part of the ion blowing path is configured using a flat plate ion generating element, and a structure that does not protrude the ion generating electrode into the ion blowing path is adopted. Then, it discovered that the fluidity | liquidity fall of the air containing an ion was prevented, the wind pressure fall by a fan could be avoided, and the said 1st subject could be solved by this.
In addition, as a result of intensive studies to solve the second problem, by combining a diverging enlarged cross section and a tapered reduced vertical cross section, ions can be diffused over a wide range without lowering the wind pressure. It was found that two problems can be solved.
The present invention has been completed based on the above findings.
That is, the present invention
An air duct forming an ion air passage;
An opening provided between the upstream introduction air passage and the downstream ion outlet of the air duct part , surrounded by a wall along the air blowing direction, and communicated with the outside of the air duct part on the wall A cartridge mounting portion with
Having four walls forming the ion airflow path comprising a connecting wall portion opposed to each other is connected to the longitudinal wall portion and these longitudinal walls facing each other extend in the longitudinal direction to each other, the longitudinal A plate-like ion generating element having a sandwiched arrangement of an ion generating electrode and an induction electrode via a dielectric is attached to the wall, and the surface of the ion generating electrode forms the same plane as the inner surface of the wall. And a cartridge constituting a part of the wall portion,
An ion generator is provided in which the cartridge is detachably mounted on the cartridge mounting portion from an opening of the cartridge mounting portion.
The good suitable, the longitudinal wall, characterized in that it comprises an ion generating electrode for exposure opening for exposing the ion generating electrode in the blowing path by inserting the ion generating element.

Preferably, the cartridge includes an enlarged cross section in which two cross sections perpendicular to each other in the blowing direction in which ions flow are enlarged along the blowing direction and a reduced cross section that is reduced in the blowing direction .
Preferably, before Symbol reduced cross-section, wherein with the longitudinal wall portion is formed by approaching to each other along the airflow direction, the enlarged cross-section, said connecting wall away from each other along the airflow direction Ru is formed by.

Preferably, the ion generator cartridge includes an ion generating element unit in which the ion generating element is disposed, and a base member to which the ion generating element unit is detachably fixed. It is formed in the base member main body of the said base member, It is characterized by the above-mentioned.

Preferably, the ion generator is a static eliminator.

According to the present invention, the constituent elements of the present invention, in particular, the surface of the ion generating electrode is formed on the same plane as the wall surface of the ion air passage, and part of the ion air passage is configured to block the air sent. For example, it is possible to produce a technical effect that, for example, air containing ions can be blown without reducing the wind power generated by the fan.
Further, according to the present invention, by combining the constituent elements of the present invention, in particular, the divergent enlarged cross section and the tapered reduced vertical section, it is possible to diffuse the ions over a wide range without reducing the wind pressure. I was able to play.

The first aspect of the present invention is an ion air passage 39 used in the ion generator 1 and formed by walls 16b, 17b, 18b, 19b,
The ion generator includes a flat plate ion generating element 51 in which an ion generating electrode 53 and an induction electrode 54 are arranged in a sandwich shape with a dielectric 52 interposed therebetween.
The ion generating electrode 53 is an ion air passage 39 characterized in that its surface forms the same plane as the inner surface of the wall portion and constitutes a part of the wall portion (the number is attached). 11 and 12).
The second aspect of the present invention is an ion air passage 39 used in the ion generator 1 and formed by walls 16b, 17b, 18b, 19b,
The ion air passage 39 has an enlarged cross section that expands along the air blowing direction in which ions flow, and a reduced cross section that crosses the enlarged cross section, which is a reduced cross section that shrinks along the air blowing direction. This is a characteristic ion air passage 39 (see the attached FIGS. 8, 9, and 12 for numbers).
As used herein, the term “longitudinal direction” means a direction that intersects a blowing direction (hereinafter, simply referred to as a blowing direction) in which ions, particularly air containing ions, flows. The “facing (opposite) longitudinal wall portion extending in the longitudinal direction” is a (opposing) wall portion having a long side long in the longitudinal direction (preferably a direction perpendicular to the blowing direction) and a short short side in the blowing direction. .
In the first aspect of the present invention ion blowing path, it is essential to use a so-called flat plate ion generating element 51, while in the second aspect of the present invention ion blowing path, not only the flat plate ion generating element 51 but also the so-called flat plate ion generating element 51 is used. Needle-like electrodes and so-called wire-like electrodes can also be employed.
In addition, when using a plate-shaped ion generating element in the ion ventilation path which is a preferable embodiment formed from the longitudinal wall part which extends in the longitudinal direction and faces the present invention, the first aspect and the second aspect of the present invention In both paths, it is necessary to provide a plate-like ion generating element on one or both of the opposing longitudinal wall portions. Thereby, a large amount of ions can be discharged out of the system by arranging a large number of ion generating elements in the longitudinal direction.
The ion ventilation path of the following embodiments has the characteristics of both the first aspect and the second aspect.

  Next, the present invention will be described in more detail by describing embodiments of the present invention with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

1 is a perspective view of the ion generator of the present invention (fan is omitted), and FIG. 2 is a longitudinal sectional view of the ion generator of FIG. 1 cut along line II-II of FIG.
As shown in these drawings, the ion generator 1 includes an ion generator main body and a housing 2 that houses the main body. The former is a fan 3 and a blower duct portion that is in fluid communication with the fan 3. It consists of four. The blower duct portion 4 is formed with the ion blower passage 39 of the present invention (FIG. 2).
The housing 2 has a lid 6 that is used when an ion generator main body (particularly, a removable ion generator cartridge 5, see FIG. 6) is stored on the upper surface thereof, and ion-containing air is discharged on the side surface thereof. Having an opening 8. Further, the housing 2 is provided with a power switch 9 on the side surface, preferably the side surface provided with the opening 8.
The fan 3 includes a fan main body and a casing 11 that houses the fan main body. The fan main body includes a blade 13 that is rotatably attached to the shaft portion 12. The casing 11 includes an air outlet 10 that is in fluid communication with the air duct portion 4.

The air duct duct section 4 includes, in order from the upstream in the air blowing direction, an introduction air blowing section 20 that is directly connected to the air blowing opening 10 and a cartridge mounting section that is fixedly connected to the introduction air blowing section 20 and that is detachably mounted with the ion generator cartridge 5. 21.
An introduction air passage 22 that is in fluid communication with the ion air passage 39 is formed in the introduction air blower 20, and the ion air passage 39 of the present invention is formed in the ion generator cartridge 5. In the air blowing path 39, the ion blower outlet 7 is in fluid communication with the downstream side in the air blowing direction, and ion-containing air is discharged from the ion generator system.
The ventilation path 14 is configured by the introduction air passage 22, the ion air passage 39, and the ion outlet 7. The ion blower outlet 7 is fixedly connected to the downstream side of the cartridge mounting portion 5, passes through the opening 8 of the housing 2, and includes a lattice-shaped blower outlet 24 on the outer surface of the housing 2.

3 is a perspective view showing the air duct portion 4 with the ion generator cartridge 5 removed as shown in FIG. 2, and FIG. 4 is a notched air duct in FIG. 3 cut along line IV-IV in FIG. FIG. 5 is a longitudinal sectional view of the portion 4 and FIG. 5 is a transverse sectional view of the air duct portion of FIG. 3 cut along the line VV of FIG.
As described above, the introduction air blowing section 20 is formed with the introduction air passage 22, and this introduction air passage 22 is a passage for fluid communication between the fan 3 and the ion air passage 39 of the present invention, A part of the ventilation path 14 is configured.
Like the ion air passage 39 of the present invention, the introduction air passage 22 has an enlarged cross section (FIG. 5) that expands in the air blowing direction in which air flows, and a reduced cross section that shrinks along the air blowing direction. It can have a reduced cross section (FIG. 4) that intersects the cross section. Preferably, the angle at which these cross sections intersect is substantially vertical.
The introduction air passage 22 extends in the longitudinal direction and opposes the longitudinal wall portions 16a and 17a (FIG. 4), and the longitudinal wall portions 16a and 17a are connected to each other so that the connection wall portions 18a and 19a oppose each other. (FIG. 5) and along the air blowing direction, the former opposing wall portions approach each other (FIG. 4), while the latter opposing wall portions separate from each other (FIG. 4). With such a configuration, the introduction air passage 22 can diffuse ions over a wide range without reducing the wind force generated by the fan 3, similarly to the ion air passage 39 of the present invention.

As described above, the cartridge mounting unit 21 is mounted with the ion generator cartridge 5 in the use state of the ion generator 1, and includes the introduction air blowing unit 20 on the upstream side in the blowing direction and the ion blowing on the downstream side in the blowing direction. An outlet 7 is provided (FIG. 3).
The cartridge mounting portion 21 is formed of a bottom wall 25 and side walls 26 to 29 surrounding the bottom portion 25 so as to have an opening portion in the upper part of the figure (FIG. 3), and the ion generator cartridge 5 is detachable from the opening portion. Can be attached to. In addition, the cartridge mounting portion 21 includes an opening in fluid communication with the introduction air passage 22 in the upstream side wall 26 and an opening in fluid communication with the ion outlet 7 in the side wall 27 on the downstream side in the air blowing direction. Further, the cartridge mounting portion 21 has a stopper penetration that engages with stopper protrusions 68 and 69 (FIG. 7) of the fixing plates 35 and 36 of the ion generator cartridge 5 on both side walls 28 and 29 on the short side. Holes 30 and 31 are provided.

  6 is a perspective view of the ion generator cartridge 5 (the high-voltage power supply unit and the plug portion for connection are omitted) mounted on the cartridge mounting unit shown in FIG. 3, and FIG. 7 is the ion generator cartridge 5 of FIG. FIG. 8 is a longitudinal sectional view of the base member 33 of FIG. 7 cut along line VIII-VIII of FIG. 7, and FIG. 9 is a line IX-IX of FIG. 8 is a cross-sectional view of the base member 33 of FIG.

As described above, the third aspect of the present invention is the ion generator cartridge 5 and includes the first aspect of the present invention air passage or the second aspect of the present invention air passage. Then, it has the ventilation path which has both characteristics.
The ion generator cartridge 5 includes an ion generating element unit 32 (FIG. 10) in which the ion generating element 51 is carried on circuit boards 49 and 50, and a base member 33 to which the ion generating element unit 32 is fixed. The base member 33 includes a base member main body 34 and fixing plates 35 to 38 for fixing the ion generating element unit 32 to the base member main body 34 (particularly FIG. 7).

As shown in FIGS. 7 to 9, the base member main body 34, together with the ion generating element unit 32 (particularly the ion generating electrode 53 of each ion generating element 51) fixed to the base member main body 34, the ion blower of the present invention. It has a structure that forms the path 39.
That is, the base member main body 34 includes longitudinal wall portions 16b and 17b that extend in the longitudinal direction and face each other, and connecting wall portions 18b and 19b that connect these walls, and the former longitudinal wall portions 16b and 17b. Are provided with ion generating electrode exposure openings 46 and 47 for inserting the ion generating element 51 and exposing the ion generating electrode 52 to the air passage 39. Furthermore, the base member main body 34 includes an opening that fluidly communicates with the introduction air passage 22 and an opening that fluidly communicates with the ion outlet 7 when the ion generator 1 is used.
The long wall portions 16b and 17b are formed with slits 40 and 41 (FIGS. 7 and 9) for inserting the connecting cord 48 (FIG. 10) at one of the short side end portions thereof, Frame portions 42 and 43 for holding the circuit board 49 (FIG. 10) of the generating element unit 32 are formed. The latter frame portions 42 and 43 extend in the longitudinal direction at the longitudinal wall portions and the long side end portions. Exist. Furthermore, the guides 44 and 45 which guide the fixing plates 35-38 along the outer surface of a longitudinal wall part are attached to the frame parts 42 and 43 at the both ends.
As shown in FIG. 7, the fixing plates 35 to 38 include step portions 60 to 63 that come into contact with both end portions on the short side of the ion generating element unit 32 when the ion generator 1 is in use. Furthermore, the fixing plate main bodies 35 and 37 are provided with slits 64 and 65 for inserting the connection cord 48 (see FIG. 10) of the ion generating element unit 32, respectively. The upper fixing plates 35 and 36 in the drawing include gripping protrusions 66 and 67 and stopper protrusions 68 and 69 that engage with the stopper through holes 30 and 31 (FIG. 3) of the cartridge mounting portion 21, respectively. Prepare.

As shown in FIGS. 6 and 7, the ion air passage 39 is formed in the base member body 33, and an enlarged cross section (FIG. 9) that expands along the air blowing direction and a reduced cross section that shrinks along the air blowing direction. And having a reduced cross section (FIG. 8) intersecting the enlarged cross section. Preferably, the enlarged cross section and the reduced cross section can intersect substantially perpendicularly. Preferably, the outlet cross-sectional area of the ion air passage 39, that is, the cross-sectional area of the air outlet 7 is the same as or smaller than the cross-sectional area of the air outlet 10 (FIG. 2) of the fan 3. By having such a cross section, the ion air passage 39 of the present invention can diffuse ions over a wide range without reducing the wind pressure.
Further, as described above, the base member main body 34 includes the longitudinal wall portions 16b and 17b that extend in the longitudinal direction and face each other, and the connecting wall portions 18b and 19b that connect these walls. The ion blowing path 39 is formed by the portion, and the reduced cross section is formed by the longitudinal wall portions 16b and 17b approaching each other along the blowing direction, and the enlarged cross section is formed by the connecting wall portions 18b and 19b. Are formed by separating from each other along the blowing direction.
In the illustrated embodiment of the present invention, the longitudinal wall portions 16b and 17b are arranged in the horizontal direction, and the ion diffusion range is expanded in the horizontal direction. A configuration in which the walls 16b and 17b are arranged in a vertical (vertical) direction can also be adopted.

10 is a perspective view of the ion generating element unit 32 constituting the ion generator cartridge 5 of FIG. 6, and FIG. 11 is an electrical diagram of the ion generating element including the schematic cross section of the ion generating element shown in FIG. It is a schematic diagram which shows a structure.
The ion generating element unit 32 includes two circuit boards 49 and 50 and a connecting cord 48 for connecting them. On the former circuit boards 49 and 50, the ion generating element 51 is disposed along the longitudinal direction. It is arranged. Furthermore, the ion generating element unit 32 includes two plug portions 56 and 57 for connecting to the high voltage power source 55 (FIG. 11), and cords 58 and 59 for supplying an AC voltage of the high voltage power source 55.
As shown in FIG. 11, the ion generating element 51 is configured in a flat plate shape and has a structure in which an ion generating electrode 53 and an induction electrode 54 are arranged in a sandwich shape with a dielectric 52 interposed therebetween. The ion generating electrode 53 of the ion generating element 51 is printed on one side of the dielectric 52. As shown in FIGS. 10 and 6, the ion generating element 51 is arranged so that the induction electrode 54 is in contact with the circuit boards 49 and 50 and the ion generating electrode 53 has a free surface.

  As described above, the ion air passage 39 is formed by the longitudinal wall portions 16b and 17b and the connecting wall portions 18b and 19b. The inner surfaces of the long wall portions 16b and 17b and the surface of the ion generating electrode 53 form the same plane to constitute a part of the long wall portions 16b and 17b. That is, the ion generating element 51 inserted into the ion generating electrode exposing openings 46 and 47 (FIG. 7) has its induction electrode 54 in contact with the circuit boards 49 and 50 and its ion generating electrode 53 in the air passage 39. Then, ions are released from the ion generation electrode 53 into the air passage 39. It should be noted that the ion generating electrode exposure openings 46 and 47 and the ion generating electrode 53 inserted into the openings 46 and 47 do not require dimensional accuracy so as to form a fitted state in the inserted state. This is because the circuit boards 49 and 50 provided with the ion generating electrode 5 can maintain the airtightness of the ion air passage 39.

  FIG. 12 is a perspective view showing a mounting process of the ion generating element unit, FIG. 13 is a perspective view showing one fixing process of the mounted ion generating element unit / circuit board, and FIG. FIG. 15 is a perspective view showing the other fixing step of the circuit board, and FIG. 15 is a perspective view showing the mounting and fixing step of the completed cartridge for the ion cartridge generator.

The ion generator cartridge 5 is assembled as follows.
First, as shown in FIG. 12, the ion generating element unit 32 is placed on the outer surface of the longitudinal wall portions 16b and 17b of the base member main body 34 with the connecting cord 48 inserted into the slits 40 and 41 of the base member main body 34. Then, the ion generating element 51 is inserted into the ion generating electrode exposing openings 46 and 47. Thereby, each ion generating element unit 32 is arranged so that the ion generating electrode 53 faces the ion air passage 39, and the same plane as the inner wall surface of the ion air passage 39 (the inner surfaces of the longitudinal wall portions 16b and 17b). A part of the ion air passage 39 can be formed. By adopting such a configuration, the first aspect of the present invention (ion air passage) includes ions without blocking the wind sent into the air passage and without reducing the wind force by the fan. You can blow air.

  Next, the fixing plates 35 and 36 on the upper side in the drawing are inserted between the guide 44 and the outer surface of the longitudinal wall portion 16b from the outer side of each of the short sides of the longitudinal wall portion 16b of the base member main body 34 ( Similarly, the lower fixing plates 37 and 38 in the drawing are inserted between the guide 45 and the outer surface of the longitudinal wall portion 17b (FIG. 14). Next, the inserted fixing plates 35 to 38 are slid inward, and the step portions 60 to 63 are engaged with the short side end portions of the circuit boards 49 and 50, so that the ion generating element unit 32 (circuit The substrates 49, 50) are fixed to the base member 33.

  The ion generator cartridge 5 assembled in this manner is mounted in the cartridge mounting portion 21 while gripping the gripping protrusions 66 and 67 of the upper fixing plates 35 and 36 with a finger, and then the upper fixing plate 35. , 36 are slid outward, and the stopper projections 68 and 69 are inserted and engaged with the stopper through holes 30 and 31 of the cartridge mounting portion 21 to fix the ion generator cartridge 5 to the cartridge mounting portion 21. (FIG. 15).

When the ion generating element 51 is consumed, the ion generating element unit 32 itself can be replaced or the two circuit boards 49 and 50 can be replaced according to the reverse of the assembly process.
Since the ion generator cartridge 5 of the present invention employs slide-type fasteners (fixing plates 35 to 36), the ion generating element unit 32 can be simply fixed to the base member 33. it can. Even when the ion generating element 51 is consumed, it is sufficient to simply replace the ion generating element unit 32 (circuit boards 49 and 50). Therefore, the ion generating element can be replaced only after the ion generating element is disassembled. Compared with the prior art, the replacement of the ion generating element is significantly simplified.

The ion generator 1 of the present invention can operate as follows.
An AC voltage is applied to the ion generating electrode 53 and the induction electrode 54 of the ion generating element 51 to generate corona discharge and generate positive and negative ions. Next, by sending wind from the fan 3 to the ventilation path 14, positive and negative ions can be discharged to the outside from the ion outlet 7, and can be blown to the charged portion to neutralize static electricity.

The perspective view of the ion generator of this invention 1 is a longitudinal sectional view of the ion generator of FIG. 1 cut along the line II-II of FIG. The perspective view which shows the ventilation duct part of the state which removed the cartridge for ion generators shown in FIG. 3 is a longitudinal sectional view of the air duct portion of FIG. 3 cut along the line IV-IV of FIG. 3 is a cross-sectional view of the air duct portion of FIG. 3 cut along the line V-V of FIG. The perspective view of the cartridge for ion generators mounted in the cartridge mounting part of the ventilation duct part shown in FIG. The exploded perspective view of the base member which comprises the cartridge for ion generators of FIG. FIG. 7 is a longitudinal sectional view of the base member body of FIG. 7 cut along the line VIII-VIII of FIG. 7 is a cross-sectional view of the base member body of FIG. 7 cut along the line IX-IX of FIG. The perspective view of the ion generating element unit which comprises the cartridge for ion generators of FIG. Schematic diagram showing the electrical configuration of the ion generating element The perspective view which shows the mounting process of an ion generating element unit The perspective view which shows one fixing process of the mounted | generated ion generating element unit and a circuit board The perspective view which shows the other fixing process of the mounted | generated ion generating element unit and a circuit board The perspective view which shows the mounting | wearing fixing process of the cartridge for completed ion cartridge generators

Explanation of symbols

  1: ion generator, 5: cartridge for ion generator, 16b, 17b: longitudinal wall portion, 18b, 19b: connecting wall portion: 21: cartridge mounting portion, 39: ion air passage, 51: ion generating element, 52: dielectric Body, 53: ion generating electrode, 54: induction electrode, A: air blowing direction

Claims (5)

An air duct forming an ion air passage;
An opening provided between the upstream introduction air passage and the downstream ion outlet of the air duct part , surrounded by a wall along the air blowing direction, and communicated with the outside of the air duct part on the wall A cartridge mounting portion with
Having four walls forming the ion airflow path comprising a connecting wall portion opposed to each other is connected to the longitudinal wall portion and these longitudinal walls facing each other extend in the longitudinal direction to each other, the longitudinal A plate-like ion generating element having a sandwiched arrangement of an ion generating electrode and an induction electrode via a dielectric is attached to the wall, and the surface of the ion generating electrode forms the same plane as the inner surface of the wall. And a cartridge constituting a part of the wall portion,
An ion generator, wherein the cartridge is detachably mounted on the cartridge mounting portion from an opening of the cartridge mounting portion. 2. The ion generation according to claim 1 , wherein the longitudinal wall portion includes an opening for exposing an ion generation electrode for inserting the ion generation element to expose the ion generation electrode in the air passage. vessel. The cartridge has two cross sections ions intersect each other perpendicularly in the blowing direction of the flowing, the enlarged section to expand along the blowing direction, characterized in that comprising a reduced cross-section to reduce along the blowing direction The ion generator according to claim 1 or 2 . The reduced cross section is formed by the longitudinal wall portions approaching each other along the air blowing direction, and the enlarged cross section is formed by the connection wall portions separating from each other along the air blowing direction. The ion generator according to claim 3 . The ion generator, an ion generator according to any one of claims 1 to 4, characterized in that it is a static eliminator.

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