JP2009224280A

JP2009224280A - Ventilation type ion generator

Info

Publication number: JP2009224280A
Application number: JP2008070287A
Authority: JP
Inventors: Kenkichi Izumi; 健吉和泉; Yosuke Enomoto; 洋介榎本; Akira Goto; 章後藤
Original assignee: Shishido Electrostatic Ltd
Current assignee: Shishido Electrostatic Ltd
Priority date: 2008-03-18
Filing date: 2008-03-18
Publication date: 2009-10-01

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation type ion generator for downsizing the whole generator and smoothly generating an air flow for transferring an air ion. <P>SOLUTION: An ion generation means 1 for generating air ions is arranged at an air feeding side of a blower 2 with a propeller fan 7. An air blowing port 3 for blowing air from the blower 2 is arranged on the ion generation means 1. The air blowing port 3 is formed in a ring-shape on the basis of a gap between an external cylinder section 8 and an internal cylinder section 9. A discharge electrode 14 applying high voltage is arranged at an outer side of the internal cylinder section 9, and an opposite electrode grounded with the external cylinder section 8 is arranged. An AC high-voltage power source 13 for supplying high-voltage to the discharge electrode 14 is housed on a power source chamber 12 formed on the blocked inside of the internal cylinder section 9. Air ions are generated by generating corona discharge by applying high voltage to the discharge electrode 14, and the air ions are transferred with the air flow blowing from the air blowing port 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、空気中でコロナ放電を発生させて正負の空気イオンを生成し、この空気イオンを空気流により移送して帯電物の除電を行なう送風式イオン生成装置に関する。 The present invention relates to a blower-type ion generator that generates corona discharge in air to generate positive and negative air ions, and transfers the air ions by an air flow to neutralize charged objects.

放電針などを有するコロナ放電発生用電極によりコロナ放電（空中コロナ放電）を発生させ、このときに生成される空気イオンを、ファンなどの送風機が送り出す空気流に乗せて放出することにより、空気流に搬送された空気イオンを帯電物に吹き付けて帯電物の除電を行うようにした送風式イオン生成装置が、従来から知られている。 A corona discharge (airborne corona discharge) is generated by a corona discharge generating electrode having a discharge needle or the like, and air ions generated at this time are discharged on an air flow sent out by a fan or other blower, thereby generating an air flow. 2. Description of the Related Art Conventionally, there is known a blow type ion generating apparatus in which air ions transported to a charged object are sprayed on a charged object to neutralize the charged object.

この種の送風式イオン生成装置では、通常、コロナ放電発生用電極の電圧印加部に、交流高圧電源から交流高電圧を印加することによって、放電針などからコロナ放電を発生させ、正負の空気イオンを生成するようにしている。そして、このようにして生成された正負の空気イオンを送風機の空気流によって移送することにより比較的遠く離れた位置にある帯電物であっても良好に除電することができる。 In this type of blown ion generator, a corona discharge is usually generated from a discharge needle or the like by applying an alternating high voltage from an alternating high voltage power source to the voltage applying portion of the corona discharge generating electrode, thereby generating positive and negative air ions. Is generated. The positive and negative air ions generated in this way are transferred by the air flow of the blower, so that even a charged object located at a relatively distant position can be well discharged.

ところで、従来の送風式イオン生成装置では、交流高圧電源として、商用電源から商用周波数（５０Ｈｚまたは６０Ｈｚ）の交流電圧が入力される一次巻線を有する巻線トランスが一般に使用されていた。しかし、このような商用周波数の巻線トランスにより構成される交流高圧電源は比較的大型で重く、送風機やコロナ放電発生用電極と共に一つの筐体内に収容して送風式イオン生成装置を構成した場合には、送風式イオン生成装置の小型化や軽量化が困難となる。 By the way, in the conventional ventilation type | formula ion generator, the winding transformer which has the primary winding in which the alternating voltage of a commercial frequency (50 Hz or 60 Hz) is input from the commercial power supply was generally used as an alternating current high voltage power supply. However, the AC high-voltage power source composed of such a commercial-frequency winding transformer is relatively large and heavy, and when it is housed in a single casing together with a blower and a corona discharge generating electrode, a blow type ion generator is configured. Therefore, it is difficult to reduce the size and weight of the blower ion generator.

このため、近年では、交流高圧電源として、高周波トランスや圧電トランスを利用した小型且つ軽量な高周波電源が使用されるようになってきている（例えば特許文献１参照）。また、他の高圧電源として、プラス高電圧発生回路とマイナス高電圧発生回路とを用いた小型且つ軽量な直流高圧電源を用いたものもある（例えば特許文献２参照）。 For this reason, in recent years, a compact and lightweight high-frequency power source using a high-frequency transformer or a piezoelectric transformer has been used as an AC high-voltage power source (see, for example, Patent Document 1). As another high-voltage power source, there is a type using a small and lightweight DC high-voltage power source using a plus high voltage generating circuit and a minus high voltage generating circuit (see, for example, Patent Document 2).

しかし、これらの高圧電源は、送風機によって形成される空気流を阻害することのない位置に配置する必要があるため、送風機の側方やコロナ放電発生用電極の外側に配置され、装置全体として小型化することは困難であった。
特開２００５−２１６５３９号公報特開２００７−３０５３６６号公報 However, these high-voltage power supplies need to be arranged at positions that do not obstruct the air flow formed by the blower, so they are arranged on the side of the blower or outside the corona discharge generating electrode, and the entire device is small. It was difficult to make it.
JP 2005-216539 A JP 2007-305366 A

本発明はかかる背景に鑑みてなされたものであり、装置全体の小型化を図ることができると共に、空気イオンを移送する空気流を円滑に発生させることができる送風式イオン生成装置を提供することを課題とする。 The present invention has been made in view of such a background, and provides a blower-type ion generator that can reduce the size of the entire apparatus and can smoothly generate an air flow for transferring air ions. Is an issue.

かかる課題を解決するために、本発明は、プロペラファンの回転により空気を送出する送風機と、該送風機による空気の送出側に位置して空気イオンを生成するイオン生成手段とを備え、該イオン生成手段により生成される空気イオンを送風機からの空気流により移送する送風式イオン生成装置において、前記イオン生成手段は、前記送風機から送出される空気を吹出し方向に案内する空気吹出し口と、交流高電圧を出力する交流高圧電源と、該交流高圧電源から高電圧が印加されることによりコロナ放電を発生させて、このコロナ放電より空気イオンを生成するコロナ放電発生用電極とを備え、前記空気吹出し口は、前記プロペラファンの回転円周の外径に対応する周壁を有する円筒状の外筒部と、該外筒部の内側に位置し該外筒部の周壁全周に所定の空隙を存して対向する周壁を有する円筒状の内筒部との間の空隙により環状に形成され、前記交流高圧電源は、該内筒部の軸方向両端を閉塞して形成された電源室に収容され、前記コロナ放電発生用電極は、前記空気吹出し口に臨んで配設され、前記内筒部に設けられて前記交流高圧電源により高電圧が印加される放電電極と、前記外筒部に設けられて該放電電極に対向する接地された対向電極とによって構成されていることを特徴とする。 In order to solve such a problem, the present invention includes a blower that sends out air by rotation of a propeller fan, and an ion generation unit that is located on the air sending side of the blower and generates air ions. In the blower-type ion generator that transfers the air ions generated by the airflow from the blower, the ion generator includes an air outlet that guides the air sent from the blower in the blowing direction, and an AC high voltage An AC high-voltage power supply that outputs a corona discharge when a high voltage is applied from the AC high-voltage power supply and generates air ions from the corona discharge. Is a cylindrical outer cylinder part having a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan, and a peripheral wall of the outer cylinder part located inside the outer cylinder part The AC high voltage power supply is formed by closing both ends in the axial direction of the inner cylinder portion, with a gap between it and a cylindrical inner cylinder portion having a peripheral wall facing each other with a predetermined gap in the circumference. The discharge electrode housed in the power supply chamber, the corona discharge generation electrode is disposed facing the air outlet, the discharge electrode is provided in the inner cylinder portion and applied with a high voltage from the AC high-voltage power source, It is comprised by the grounded counter electrode which is provided in the said outer cylinder part and opposes this discharge electrode, It is characterized by the above-mentioned.

本発明によれば、上記の構成により、空気吹出し口を、外筒部と内筒部との間の空隙により形成したので、送風機から送出される空気流の流動面積を狭めて流速を高めることができる。これによって、空気吹出し口に臨むコロナ放電発生用電極により生成される空気イオンをより多く空気流に乗せて送り出すことができるので、放出する空気イオン量を増加させることができる。 According to the present invention, with the above configuration, the air outlet is formed by the gap between the outer cylinder part and the inner cylinder part, so the flow area of the air flow sent from the blower is narrowed to increase the flow velocity. Can do. As a result, more air ions generated by the corona discharge generating electrode facing the air outlet can be sent out on the air flow, so that the amount of released air ions can be increased.

しかも、空気吹出し口は、外筒部と内筒部とによって環状に形成されているだけでなく、外筒部がプロペラファンの回転円周の外径に対応する周壁を有することによって、プロペラファンにより遠心力が付与された空気流の大部分を通過させることができる。 Moreover, the air outlet is not only formed in an annular shape by the outer cylinder part and the inner cylinder part, but the outer cylinder part has a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan, so that the propeller fan Thus, most of the air flow to which centrifugal force is applied can be passed.

一方、プロペラファンにより形成される空気流はその中央部では少ない。そこで、本発明においては、空気流が少ない中央部に位置する内筒部の軸方向両端を閉塞して電源室を形成し、この電源室に前記交流高圧電源を収容した。こうすることにより、送風機による空気の送出を阻害することのない空間を有効に利用して前記交流高圧電源を配置することができ、装置全体をコンパクトに形成することができる。更に、補足すると、前記交流高圧電源は商用周波数の巻線トランスにより構成されるものではなく、周知である高周波トランスや圧電トランスを利用した小型且つ軽量な高周波電源を使用する。これにより、電源室を大きくする必要がなく、内筒部の内部に容易に収容できる。 On the other hand, the air flow formed by the propeller fan is small in the center. Therefore, in the present invention, both ends in the axial direction of the inner cylinder portion located in the central portion where the air flow is small are closed to form a power supply chamber, and the AC high-voltage power supply is accommodated in the power supply chamber. By doing so, the AC high-voltage power supply can be arranged by effectively using a space that does not hinder the sending of air by the blower, and the entire apparatus can be compactly formed. Further, supplementally, the AC high-voltage power supply is not constituted by a commercial-frequency winding transformer, but a small and light-weight high-frequency power supply using a known high-frequency transformer or piezoelectric transformer is used. Thereby, it is not necessary to enlarge a power supply chamber, and it can be easily accommodated inside the inner cylinder portion.

また、本発明において、前記対向電極は、接地された金属製の前記外筒部により形成することができる。前記外筒部を金属により形成して接地させ、これを対向電極とすることにより、部品点数を少なくすることができる。 In the present invention, the counter electrode can be formed by the grounded metal outer tube portion. The number of parts can be reduced by forming the outer cylinder portion from a metal and grounding the outer cylinder portion as a counter electrode.

また、本発明において、前記対向電極は、絶縁材製の前記外筒部の外周に装着され接地された金属製の円筒部材により形成してもよい。放電電極に高電圧を印加すると、放電電極においてコロナ放電が発生するが、両電極間に多くの空気イオンが存在すると空気が導電性を有することとなる。このとき、両電極間の距離が小さいとコロナ放電が火花放電に移行するおそれがあるが、両電極間には絶縁材製の外筒部が介在することにより、コロナ放電から火花放電への移行を防止することができ、火花放電に伴う空気イオン量の低下、両電極の損傷、及びノイズの発生等を防止することができる。 In the present invention, the counter electrode may be formed of a metal cylindrical member that is attached to the outer periphery of the outer cylinder portion made of an insulating material and is grounded. When a high voltage is applied to the discharge electrode, corona discharge occurs at the discharge electrode. However, if there are many air ions between the two electrodes, the air has conductivity. At this time, if the distance between the two electrodes is small, the corona discharge may shift to a spark discharge, but the transition from corona discharge to spark discharge is caused by an outer cylinder made of an insulating material between the electrodes. It is possible to prevent a decrease in the amount of air ions accompanying the spark discharge, damage to both electrodes, generation of noise, and the like.

また、本発明において、前記放電電極は、前記内筒部の周壁内面側に設けられ前記交流高圧電源に高圧ケーブルを介して接続された金属製の環状基部と、該環状基部の周方向に所定間隔を存して該環状基部と一体に形成され、内筒部の周壁を貫通して前記空気吹出し口に突出する先端鋭利な複数の放電針とにより構成されていることを特徴とする。これによれば、放電針の鋭利な先端に高電界を集中させて確実にコロナ放電を得ることができる。そして、複数の放電針が内筒部の周方向に所定間隔を存して突出するので全周わたり略均一にコロナ放電を発生させることができるので、効率良く空気イオンを生成することができる。 Further, in the present invention, the discharge electrode is provided on the inner surface side of the inner wall of the inner cylinder portion and connected to the AC high-voltage power source via a high-voltage cable, and a predetermined circumferential direction of the annular base portion. A plurality of sharp discharge needles are formed integrally with the annular base portion with a space therebetween and project through the peripheral wall of the inner cylinder portion and project to the air outlet. According to this, a corona discharge can be reliably obtained by concentrating a high electric field on the sharp tip of the discharge needle. Since the plurality of discharge needles protrude at a predetermined interval in the circumferential direction of the inner cylinder portion, corona discharge can be generated substantially uniformly over the entire circumference, so that air ions can be generated efficiently.

また、前記放電電極は、前記内筒部の周壁内面側に設けられ前記交流高圧電源に高圧ケーブルを介して接続された金属製の平板環状基部と、該平板環状基部の外周縁にその周方向に所定間隔を存して該平板環状基部と一体に形成され、内筒部の周壁を貫通して前記空気吹出し口に突出する先端鋭利な複数の鋸歯状突起とにより構成されていてもよい。これによれば、放電電極を金属製原材から打ち抜きによって容易に作成できる。 Further, the discharge electrode is provided on the inner surface of the inner wall of the inner wall and connected to the AC high-voltage power source via a high-voltage cable, and a circumferential direction on the outer peripheral edge of the flat plate base. May be formed integrally with the flat plate annular base portion at a predetermined interval, and may be formed by a plurality of serrated protrusions having sharp tips penetrating the peripheral wall of the inner cylinder portion and projecting to the air outlet. According to this, a discharge electrode can be easily created by punching from a metal raw material.

このとき、前記平板環状基部を、該平板環状基部と対向する同形の金属製の平板環状部材に絶縁体の平板部材を介して重合し、該平板環状部材を前記交流高圧電源に前記高圧ケーブルを介して接続することにより、容量を介して前記平板環状基部に交流高電圧が印加されるようにしてもよい。放電電極が金属製の平板環状基部と鋸歯状突起とで平板状に形成されていることにより、絶縁体の平板部材と金属製の平板環状部材とを重合して容易にコンデンサを構成することができる。そして、容量を介して交流高電圧を印加させることで各鋸歯状突起に異物が接触しても、大きな短絡電流が流れるのを抑制することができる。 At this time, the flat plate annular base is superposed on the same metal flat plate annular member facing the flat plate annular base via an insulating flat plate member, and the high voltage cable is connected to the AC high voltage power source. By connecting via the capacitor, an AC high voltage may be applied to the flat plate base via a capacitor. Since the discharge electrode is formed in a flat plate shape with a metal flat plate base and a sawtooth projection, a capacitor can be easily formed by superposing the flat plate member of the insulator and the flat plate member made of metal. it can. And even if a foreign material contacts each sawtooth projection by applying an alternating current high voltage via a capacity | capacitance, it can suppress that a big short circuit current flows.

更に、前記平板環状基部を、円弧状に形成された複数の円弧基部を所定間隔を存して環状に配列することにより形成し、各円弧基部には１以上の前記鋸歯状突起を設けることで、各円弧基部における接続容量が小さくなり、短絡電流を一層確実に抑制することができる。 Further, the flat plate base is formed by arranging a plurality of arc bases formed in an arc shape in an annular shape at a predetermined interval, and each arc base portion is provided with one or more sawtooth projections. The connection capacity at each arc base is reduced, and the short-circuit current can be more reliably suppressed.

以上のものは、交流高圧電源を備えてコロナ放電発生用電極に交流項電圧を印加する構成であるが、交流高圧電源に替えて小型軽量な直流高圧電源を用いても同様の効果を得ることができる。即ち、本発明の他の態様として、前記イオン生成手段は、前記送風機から送出される空気を吹出し方向に案内する空気吹出し口と、正負の直流高電圧を各別に出力する直流高圧電源と、該直流高圧電源から高電圧が印加されることによりコロナ放電を発生させて、このコロナ放電より空気イオンを生成するコロナ放電発生用電極とを備え、前記空気吹出し口は、前記プロペラファンの回転円周の外径に対応する周壁を有する円筒状の外筒部と、該外筒部の内側に位置し該外筒部の周壁全周に所定の空隙を存して対向する周壁を有する円筒状の内筒部との間の空隙により環状に形成され、前記直流高圧電源は、該内筒部の軸方向両端を閉塞して形成された電源室に収容され、前記コロナ放電発生用電極は、前記空気吹出し口に臨んで配設され、前記内筒部に設けられて前記直流高圧電源により正の高電圧が印加される正の放電電極と、該正の放電電極に隣接して該内筒部に設けられ、前記直流高圧電源により負の高電圧が印加される負の放電電極とによって構成されていることを特徴とする。 The above is a configuration in which an AC high voltage power supply is provided and an AC term voltage is applied to the corona discharge generating electrode, but the same effect can be obtained even if a small and light DC high voltage power supply is used instead of the AC high voltage power supply. Can do. That is, as another aspect of the present invention, the ion generating means includes an air outlet that guides the air sent from the blower in the blowing direction, a DC high-voltage power source that outputs positive and negative DC high voltages, and A corona discharge is generated by applying a high voltage from a DC high-voltage power source, and air ions are generated from the corona discharge, and the air outlet has a rotating circumference of the propeller fan. A cylindrical outer cylinder portion having a peripheral wall corresponding to the outer diameter of the outer cylindrical portion, and a cylindrical outer wall portion which is located inside the outer cylinder portion and faces the entire circumference of the outer cylinder portion with a predetermined gap. An annular space is formed between the inner cylinder part and the DC high-voltage power source is housed in a power supply chamber formed by closing both axial ends of the inner cylinder part, and the corona discharge generating electrode is It is arranged facing the air outlet, A positive discharge electrode provided in the inner cylinder portion to which a positive high voltage is applied by the DC high-voltage power source, and provided in the inner cylinder portion adjacent to the positive discharge electrode, and negative by the DC high-voltage power source. And a negative discharge electrode to which a high voltage is applied.

本発明によれば、外筒部と内筒部とによる環状の空気吹出し口により流速の早い空気流を形成して放出する空気イオン量を増加させることができる。そして、前述した通り、プロペラファンによる空気流が比較的少ない中央部に位置する内筒部の内部に電源室を形成し、この電源室に前記直流高圧電源を収容することで、送風機による空気の送出を阻害することのない空間を有効に利用して前記直流高圧電源を配置することができ、装置全体をコンパクトに形成することができる。 According to the present invention, it is possible to increase the amount of air ions emitted by forming an air flow having a high flow velocity by the annular air outlet formed by the outer cylinder portion and the inner cylinder portion. As described above, a power supply chamber is formed inside the inner cylinder portion located in the central portion where the air flow by the propeller fan is relatively small, and the DC high-voltage power supply is accommodated in the power supply chamber, thereby The DC high-voltage power supply can be arranged by effectively using a space that does not hinder the delivery, and the entire apparatus can be made compact.

また、本発明において、前記放電電極は、前記内筒部に着脱自在に取り付けられた支持部材に支持され、該支持部材と一体的に前記内筒部から取り外し可能とされていることが好ましい。これによれば、支持部材と共に放電電極を内筒部から取り外して掃除やメンテナンスが容易に行える。 In the present invention, it is preferable that the discharge electrode is supported by a support member that is detachably attached to the inner cylinder part, and is removable from the inner cylinder part integrally with the support member. According to this, a discharge electrode is removed from an inner cylinder part with a support member, and cleaning and a maintenance can be performed easily.

また、本発明において、前記イオン生成手段は、前記送風機のプロペラファンを収容するフレームに着脱自在に連結されていてもよい。こうすることで、前記イオン生成手段を送風機から分離させて、メンテナンス作業が行い易いだけでなく、イオン生成手段を既存の送風機の空気送出側に取り付けることも可能となるので経済的である。 Moreover, in this invention, the said ion production | generation means may be connected with the flame | frame which accommodates the propeller fan of the said air blower so that attachment or detachment is possible. In this way, the ion generating means is separated from the blower and not only maintenance work is easy to perform, but also the ion generating means can be attached to the air delivery side of an existing blower, which is economical.

先ず、本発明の第１の実施形態を図１乃至図３に基づいて説明する。第１の実施形態の送風式イオン生成装置Ａは、図１及び図２に示すように、イオン生成手段１と送風機２とにより構成されている。イオン生成手段１は、前面に空気吹出し口３が設けられた筐体４を備えている。該筐体４は、図２に示すように、背面側が開放され、内部に送風機２を収容する収容部５が形成されている。送風機２は、収容部５に対応する角筒状のフレーム６を備え、このフレーム６内にプロペラファン７を支持している。プロペラファン７は図示しないモータにより回転駆動され、フレーム６の背面側から空気を強制的に取り入れて前方へ送出する。送風機２による空気の送出側には、前記イオン生成手段１の空気吹出し口３が位置している。 First, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the blower ion generator A according to the first embodiment includes an ion generator 1 and a blower 2. The ion generating means 1 includes a housing 4 provided with an air outlet 3 on the front surface. As shown in FIG. 2, the housing 4 is open on the back side and has a housing 5 for housing the blower 2 therein. The blower 2 includes a rectangular tube-shaped frame 6 corresponding to the accommodating portion 5, and a propeller fan 7 is supported in the frame 6. The propeller fan 7 is rotationally driven by a motor (not shown) and forcibly takes in air from the back side of the frame 6 and sends it forward. An air outlet 3 of the ion generating means 1 is located on the air sending side of the blower 2.

該空気吹出し口３は、図１及び図２に示すように、外筒部８と内筒部９とにより形成されている。外筒部８は、金属製であり、プロペラファン７の回転円周の外径に対応する周壁を有する円筒状に形成されている。内筒部９は、合成樹脂等の絶縁材製であり、外筒部８の内側に位置し該外筒部８の周壁全周に所定の空隙を存して対向する周壁を有する円筒状に形成されている。外筒部８は、筐体４の前壁に連結され、内筒部９は図示しない連結部材を介して筐体４に連結されている。図２に示すように、外筒部８と内筒部９との間に形成された環状の空隙は、筐体４の内外に連通し、これによって環状の空気吹出し口３を形成している。 As shown in FIGS. 1 and 2, the air outlet 3 is formed by an outer cylinder portion 8 and an inner cylinder portion 9. The outer cylinder part 8 is made of metal and is formed in a cylindrical shape having a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan 7. The inner cylinder portion 9 is made of an insulating material such as a synthetic resin, and is formed in a cylindrical shape having a peripheral wall located inside the outer cylinder portion 8 and facing the entire circumference of the outer cylinder portion 8 with a predetermined gap. Is formed. The outer cylinder portion 8 is connected to the front wall of the housing 4, and the inner cylinder portion 9 is connected to the housing 4 via a connecting member (not shown). As shown in FIG. 2, the annular gap formed between the outer cylinder portion 8 and the inner cylinder portion 9 communicates with the inside and outside of the housing 4, thereby forming the annular air outlet 3. .

また、内筒部９は、図２に示すように、送風機２に対向する側の端部が閉塞板１０により閉塞され、空気吹出し口３の下流側の端部が合成樹脂等の絶縁材製の前面パネル１１により閉蓋されている。内筒部９の内部の空間により電源室１２が形成され、この電源室１２には、交流高圧電源１３が収容されている。交流高圧電源１３は、高周波トランスや圧電トランスによる高周波電源が採用されていることにより小型且つ軽量とされ、電源室１２内にコンパクトに収容されている。 Further, as shown in FIG. 2, the inner cylinder portion 9 is closed at the end facing the blower 2 by a closing plate 10, and the downstream end of the air outlet 3 is made of an insulating material such as synthetic resin. The front panel 11 is closed. A power supply chamber 12 is formed by a space inside the inner cylinder portion 9, and an AC high voltage power supply 13 is accommodated in the power supply chamber 12. The AC high-voltage power supply 13 is small and lightweight by adopting a high-frequency power source such as a high-frequency transformer or a piezoelectric transformer, and is accommodated in the power supply chamber 12 in a compact manner.

更に、内筒部９には、交流高圧電源１３により高電圧が印加される放電電極１４が設けられている。図３において前面パネル１１を取り除いた状態で示すように、放電電極１４は、金属製の棒状体を円環状に形成してなる環状基部１５と、環状基部１５に一体に嵌め込み連結されて所定間隔を存して放射状に配列された先端鋭利な金属製の複数の放電針１６とにより構成されている。環状基部１５は、図２に示すように、内筒部９に嵌合された合成樹脂等の絶縁材製の円形の支持板１７に保持され、各放電針１６は、内筒部９を貫通して空気吹出し口３に突出している。環状基部１５には、高圧ケーブル１８を介して交流高圧電源１３が接続されている。 Further, the inner cylinder portion 9 is provided with a discharge electrode 14 to which a high voltage is applied by an AC high voltage power source 13. As shown in FIG. 3 with the front panel 11 removed, the discharge electrode 14 includes an annular base portion 15 formed by forming a metal rod-like body in an annular shape, and is integrally fitted and connected to the annular base portion 15 so as to have a predetermined interval. And a plurality of discharge needles 16 made of metal with sharp tips arranged radially. As shown in FIG. 2, the annular base portion 15 is held by a circular support plate 17 made of an insulating material such as a synthetic resin fitted to the inner cylinder portion 9, and each discharge needle 16 penetrates the inner cylinder portion 9. And it protrudes to the air outlet 3. An AC high voltage power supply 13 is connected to the annular base 15 via a high voltage cable 18.

そして、図２及び図３に示すように、放電電極１４には金属製の外筒部８が対向しており、この外筒部８が接地線１９により接地されていることにより、外筒部８が対向電極とされ、放電電極１４と対向電極である外筒部８とでコロナ放電発生用電極を構成している。 As shown in FIGS. 2 and 3, a metal outer cylinder portion 8 is opposed to the discharge electrode 14, and the outer cylinder portion 8 is grounded by a ground wire 19, whereby the outer cylinder portion. 8 is a counter electrode, and the discharge electrode 14 and the outer cylinder portion 8 which is the counter electrode constitute a corona discharge generating electrode.

以上の構成による送風式イオン生成装置Ａは、交流高圧電源１３から放電電極１４に高電圧を印加することで、空気吹出し口３において放電針１６と外筒部８との間に形成された高電界が放電針１６の先端に集中してコロナ放電が発生する。そして、このときのコロナ放電により空気イオンが生成され、送風機２からの空気流が空気吹出し口３を通過する際に、空気イオンが空気流と共に空気吹出し口３から吹き出される。こうして空気吹出し口３から吹き出された空気イオンは、空気流に乗って離れた位置にある帯電物に移送され、帯電物の静電気を中和して効率よく除電することができる。 The blower-type ion generator A having the above configuration applies a high voltage from the AC high-voltage power supply 13 to the discharge electrode 14, thereby forming a high voltage formed between the discharge needle 16 and the outer cylinder portion 8 at the air outlet 3. The electric field concentrates on the tip of the discharge needle 16 and corona discharge occurs. And air ion is produced | generated by the corona discharge at this time, and when the air flow from the air blower 2 passes the air blowing port 3, air ion is blown out from the air blowing port 3 with an air flow. The air ions blown out from the air outlet 3 in this way are transferred to the charged object at a position separated from the air flow, and can neutralize the static electricity of the charged object and efficiently eliminate the static electricity.

このとき、空気吹出し口３が、外筒部８と内筒部９との間の空隙により形成されているので、送風機２から送出される空気流の流動面積が比較的狭く、空気の流速が高い。これによって、空気吹出し口３で生成される空気イオンを多量に送り出すことができる。しかも、空気吹出し口３を構成する外筒部８がプロペラファン７の回転円周の外径に対応する周壁を有することによって、プロペラファン７により遠心力が付与された空気流の大部分を効率よく空気吹出し口３から吹き出させることができる。更に、プロペラファン７により形成される空気流はその中央部では少ないので、空気流が少ない中央部に位置する内筒部９に電源室１２を形成して交流高圧電源１３を収容したことで装置全体を極めてコンパクトに形成することができる。 At this time, since the air outlet 3 is formed by a gap between the outer cylinder part 8 and the inner cylinder part 9, the flow area of the air flow sent from the blower 2 is relatively narrow, and the air flow rate is high. Thus, a large amount of air ions generated at the air outlet 3 can be sent out. In addition, since the outer cylinder portion 8 constituting the air outlet 3 has a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan 7, most of the air flow to which the centrifugal force is applied by the propeller fan 7 is made efficient. The air can be blown out from the air blowing port 3 well. Further, since the air flow formed by the propeller fan 7 is small in the central portion, the power supply chamber 12 is formed in the inner cylinder portion 9 located in the central portion where the air flow is small, and the AC high-voltage power supply 13 is accommodated. The whole can be formed extremely compact.

次に、本発明の第２の実施形態を図４及び図５に基づいて説明する。第２の実施形態の送風式イオン生成装置Ｂは、外筒部２０が合成樹脂等の絶縁材製とされている。そして、外筒部２０の外周には接地線２１を介して接地された金属製の円筒部材２２が装着され、この円筒部材２２によって対向電極が構成されている。その他の構成は、第１の実施形態と同様であるため図１乃至図３と同じ符号を付してその説明を省略する。 Next, a second embodiment of the present invention will be described with reference to FIGS. In the blower-type ion generator B of the second embodiment, the outer cylinder portion 20 is made of an insulating material such as a synthetic resin. A metal cylindrical member 22 that is grounded via a ground wire 21 is attached to the outer periphery of the outer cylindrical portion 20, and a counter electrode is configured by the cylindrical member 22. Since other configurations are the same as those of the first embodiment, the same reference numerals as those in FIGS. 1 to 3 are given and description thereof is omitted.

第２の実施形態の送風式イオン生成装置Ｂにおいては、絶縁材製の外筒部２０を介してその外側の円筒部材２２が放電電極１４の放電針１６に対向するので、コロナ放電を一層確実に発生させることができる。即ち、放電電極に高電圧を印加すると、空気吹出し口３において放電針１６と円筒部材２２との間に形成された高電界が放電針１６の先端に集中してコロナ放電が発生する。このとき、放電針１６と円筒部材２２との間に絶縁材製の外筒部２０が介在するので、コロナ放電から火花放電に移行することが防止できる。これによって、コロナ放電の発生が安定して確実に得られるだけでなく、火花放電に伴う空気イオン量の低下、両電極の損傷、及びノイズの発生等を防止することができる。 In the blower type ion generator B of the second embodiment, since the outer cylindrical member 22 faces the discharge needle 16 of the discharge electrode 14 through the outer cylinder portion 20 made of an insulating material, corona discharge is further ensured. Can be generated. That is, when a high voltage is applied to the discharge electrode, a high electric field formed between the discharge needle 16 and the cylindrical member 22 at the air outlet 3 is concentrated on the tip of the discharge needle 16 to generate corona discharge. At this time, since the outer cylinder portion 20 made of an insulating material is interposed between the discharge needle 16 and the cylindrical member 22, it is possible to prevent a transition from corona discharge to spark discharge. Thereby, not only can the generation of corona discharge be stably and reliably obtained, but also a decrease in the amount of air ions, damage to both electrodes, generation of noise, and the like accompanying spark discharge can be prevented.

ここで、前述の第１及び第２の実施形態においては、金属製の棒状体を円環状に形成してなる環状基部１５と、環状基部１５に一体に嵌め込み連結された金属製の複数の放電針１６とにより構成した放電電極１４を用いたが、それ以外には、図６及び図７に示すように、金属製の平板環状基部２３と、平板環状基部の外周縁にその周方向に所定間隔を存して一体に形成された先端鋭利な複数の鋸歯状突起２４とにより構成された放電電極２５を用いることができる。この場合に、平板環状基部２３は内筒部９（図１参照）に嵌合する絶縁材製の支持板１７に支持させ、高圧ケーブル１８を介して交流高圧電源１３（図１参照）を接続する。各鋸歯状突起２４は、内筒部９の周壁を貫通して前記空気吹出し口３に突出させる。こうすることにより、前述の第１及び第２の実施形態のものと同様の効果が得られるだけでなく、放電電極２５を金属製板材から打ち抜いて容易に作成できるので安価となる。 Here, in the first and second embodiments described above, an annular base portion 15 formed by forming a metal rod-like body into an annular shape, and a plurality of metallic discharges integrally fitted and connected to the annular base portion 15. Although the discharge electrode 14 constituted by the needle 16 was used, other than that, as shown in FIGS. 6 and 7, a metal plate annular base portion 23 and an outer peripheral edge of the plate annular base portion are predetermined in the circumferential direction thereof. It is possible to use a discharge electrode 25 constituted by a plurality of sharp-toothed protrusions 24 formed integrally with a space therebetween. In this case, the flat plate base 23 is supported by an insulating support plate 17 fitted to the inner cylinder 9 (see FIG. 1), and the AC high voltage power supply 13 (see FIG. 1) is connected via the high voltage cable 18. To do. Each serrated projection 24 penetrates the peripheral wall of the inner cylinder portion 9 and projects to the air outlet 3. By doing so, not only the same effects as those of the first and second embodiments described above can be obtained, but also the discharge electrode 25 can be easily punched out from a metal plate material, so that it is inexpensive.

また、前述の第１及び第２の実施形態においては、図８乃至図１０に示す放電電極２６を採用することもできる。この放電電極２６は、図８に示すように、平板環状基部２３と鋸歯状突起２４とを備える点は上述の放電電極２５と同様であるが、更に、裏面視した図９及び断面視した図１０に示すように、絶縁材製の支持板１７（平板部材）を介して金属製の平板環状部材２７を重合し、この平板環状部材２７に高圧ケーブル１８を介して交流高圧電源１３（図１参照）を接続する。このとき、平板環状基部２３と平板環状部材２７とは同形として互いに同心に対向させる。こうすることにより、絶縁材製の支持板１７を挟みこんだ平板環状基部２３と平板環状部材２７とにより所謂平行平板コンデンサが構成され、交流高圧電源１３からは、容量を介して鋸歯状突起２４に高電圧が印加される。これによれば、前述の第１及び第２の実施形態のものと同様の効果が得られるだけでなく、容量を介して交流高電圧を印加させることで各鋸歯状突起２４に異物が接触しても、大きな短絡電流が流れるのを抑制することができる。 Further, in the first and second embodiments described above, the discharge electrode 26 shown in FIGS. 8 to 10 may be employed. As shown in FIG. 8, this discharge electrode 26 is similar to the above-mentioned discharge electrode 25 in that it includes a flat plate-shaped annular base 23 and a sawtooth projection 24. However, FIG. 9 is a rear view and FIG. As shown in FIG. 10, a metal plate annular member 27 is superposed via a support plate 17 (flat plate member) made of an insulating material, and the AC high voltage power source 13 (FIG. 1) is connected to the plate annular member 27 via a high voltage cable 18. Connect). At this time, the flat plate base 23 and the flat plate member 27 are concentrically opposed to each other. By so doing, a so-called parallel plate capacitor is constituted by the flat plate annular base 23 and the flat plate annular member 27 sandwiching the support plate 17 made of an insulating material, and the AC high voltage power supply 13 receives a sawtooth projection 24 via a capacitor. A high voltage is applied to. According to this, not only the same effects as those of the first and second embodiments described above can be obtained, but also foreign objects come into contact with each sawtooth protrusion 24 by applying an alternating high voltage through a capacitor. However, it is possible to suppress a large short-circuit current from flowing.

更にまた、前述の第１及び第２の実施形態においては、図１１に示す放電電極２８を採用することもできる。この放電電極２８は、円弧状に形成された複数の円弧基部２９を所定間隔を存して環状に配列し、各円弧基部２９に１以上の鋸歯状突起２４を設けることによって構成したものである。これによれば、各円弧基部２９における接続容量が小さくなり、短絡電流を一層確実に抑制することができる。 Furthermore, in the first and second embodiments described above, the discharge electrode 28 shown in FIG. 11 may be employed. The discharge electrode 28 is configured by arranging a plurality of arc base portions 29 formed in an arc shape in an annular shape at predetermined intervals, and providing each arc base portion 29 with one or more serrated projections 24. . According to this, the connection capacity at each arc base 29 is reduced, and the short-circuit current can be more reliably suppressed.

次に、本発明の第３の実施形態を図１２乃至図１４に基づいて説明する。第３の実施形態の送風式イオン生成装置Ｃは、外筒部３０と内筒部９とが共に合成樹脂等の絶縁材製とされている。そして、図１４に示すように、内筒部９に嵌合された絶縁材製の支持板１７には複数の正の高圧端子台３１と複数の負の高圧端子台３２とが交互に支持されている。正の高圧端子台３１には正の放電針３３が一体に設けられて正の放電電極とされ、負の高圧端子台３２には負の放電針３４が一体に設けられて負の放電電極とされている。図１３に示すように、内筒部９内部の電源室１２には直流高圧電源３５が収容されており、図１４において前面パネル１１を取り除いた状態で示すように、正の高圧端子台３１は正の高圧ケーブル３６を介して直流高圧電源３５の正の出力端子３７に、負の高圧端子台３２は負の高圧ケーブル３８を介して直流高圧電源３５の負の出力端子３９に、夫々接続されている。その他の構成は、第１の実施形態と同様であるため図１乃至図３と同じ符号を付してその説明を省略する。 Next, a third embodiment of the present invention will be described with reference to FIGS. In the blow type ion generator C of the third embodiment, both the outer cylinder part 30 and the inner cylinder part 9 are made of an insulating material such as synthetic resin. As shown in FIG. 14, a plurality of positive high-voltage terminal blocks 31 and a plurality of negative high-voltage terminal blocks 32 are alternately supported on the support plate 17 made of an insulating material fitted to the inner cylinder portion 9. ing. A positive discharge needle 33 is integrally provided on the positive high-voltage terminal block 31 to be a positive discharge electrode, and a negative discharge needle 34 is integrally provided on the negative high-voltage terminal block 32 to be a negative discharge electrode. Has been. As shown in FIG. 13, a DC high voltage power supply 35 is accommodated in the power supply chamber 12 inside the inner cylinder portion 9, and as shown in a state in which the front panel 11 is removed in FIG. The positive high-voltage cable 36 is connected to the positive output terminal 37 of the DC high-voltage power supply 35, and the negative high-voltage terminal block 32 is connected to the negative output terminal 39 of the DC high-voltage power supply 35 via the negative high-voltage cable 38. ing. Since other configurations are the same as those of the first embodiment, the same reference numerals as those in FIGS. 1 to 3 are given and description thereof is omitted.

第３の実施形態の送風式イオン生成装置Ｃにおいては、上記の構成により、直流高圧電源３５の正の出力電圧が正の高圧端子台３１に印加され、直流高圧電源３５の負の出力電圧が負の高圧端子台３２に印加されて、正の放電針３３と負の放電針３４との間に高電界が集中することにより正と負のコロナ放電が発生する。このコロナ放電により正と負の空気イオンを生成することができ、送風機２からの空気流により空気吹出し口３から正と負の空気イオンを送り出すことができる。そして、第３の実施形態の送風式イオン生成装置Ｃにおいても、前述の第１及び第２の実施形態のものと同様にして、流速が高い空気により空気吹出し口３で生成された空気イオンを多量に送り出すことができ、プロペラファン７により遠心力が付与された空気流の大部分を効率よく空気吹出し口３から吹き出させることができる。そして、直流高圧電源３５を内筒部９の電源室１２に収容して装置全体を極めてコンパクトに形成することができる。 In the blower type ion generator C of the third embodiment, with the above configuration, the positive output voltage of the DC high-voltage power supply 35 is applied to the positive high-voltage terminal block 31, and the negative output voltage of the DC high-voltage power supply 35 is When applied to the negative high voltage terminal block 32 and a high electric field concentrates between the positive discharge needle 33 and the negative discharge needle 34, positive and negative corona discharges are generated. Positive and negative air ions can be generated by the corona discharge, and positive and negative air ions can be sent out from the air outlet 3 by the air flow from the blower 2. And also in the blast type ion generator C of the third embodiment, air ions generated at the air outlet 3 by the air having a high flow velocity are obtained in the same manner as in the first and second embodiments described above. A large amount can be sent out, and most of the air flow to which the centrifugal force is applied by the propeller fan 7 can be efficiently blown out from the air outlet 3. And the DC high voltage power supply 35 can be accommodated in the power supply chamber 12 of the inner cylinder part 9, and the whole apparatus can be formed very compactly.

次に、本発明の第４の実施形態を図１５及び図１６に基づいて説明する。第４の実施形態の送風式イオン生成装置Ｄは、主要な構成は前述の第１の実施形態のものと同様であるが、放電電極１４が着脱自在に設けられている点で第１の実施形態のものと異なっている。即ち、図１５及び図１６に示すように、前面パネル１１の中央部に貫通するねじ部材４０が、内筒部９の閉塞板１０に設けられた取り付け台４１に羅着されることにより、放電電極１４及び支持板１７が内筒部９に取り付けられている。更に、交流高圧電源１３から延びる高圧ケーブル１８が、放電電極１４の環状基部１５に接続されたソケット部材４２により切離自在に接続されている。これによれば、ねじ部材４０を取り付け台４１から外すだけで、前面パネル１１と共に支持板１７及び放電電極１４を内筒部９から取り外すことができ、交流高圧電源１３との接続をソケット部材４２により切り離すことにより、例えば、別の場所で放電電極１４の掃除等を行うことができ、或いは、放電電極１４の交換が行え、メンテナンス作業が容易に行える。なお、この構成は、第１の実施形態のものだけでなく、第２の実施形態や第３の実施形態のものにも適用できることはもちろんであり、前述した他の構成の放電電極２５、２６、２８が採用されている場合であっても適用できる。 Next, the 4th Embodiment of this invention is described based on FIG.15 and FIG.16. The blower ion generator D of the fourth embodiment has the same main configuration as that of the first embodiment described above, but the first embodiment is that the discharge electrode 14 is detachably provided. The form is different. That is, as shown in FIG. 15 and FIG. 16, the screw member 40 penetrating through the center portion of the front panel 11 is attached to the mounting base 41 provided on the closing plate 10 of the inner cylinder portion 9, thereby discharging. An electrode 14 and a support plate 17 are attached to the inner cylinder portion 9. Further, the high voltage cable 18 extending from the AC high voltage power supply 13 is detachably connected by a socket member 42 connected to the annular base portion 15 of the discharge electrode 14. According to this, it is possible to remove the support plate 17 and the discharge electrode 14 together with the front panel 11 from the inner cylinder portion 9 by simply removing the screw member 40 from the mounting base 41, and to connect the AC high voltage power source 13 to the socket member 42. For example, the discharge electrode 14 can be cleaned at another location, or the discharge electrode 14 can be replaced, and maintenance work can be easily performed. Note that this configuration can be applied not only to the first embodiment but also to the second and third embodiments, and the discharge electrodes 25 and 26 having other configurations described above. , 28 is also applicable.

次に、本発明の第５の実施形態を図１７及び図１８に基づいて説明する。第５の実施形態の送風式イオン生成装置Ｅは、図１７及び図１８に示すように、イオン生成手段４３と送風機４４とにより構成されている。イオン生成手段４３は、前面の空気吹出し口３の外周に張り出す第１フランジ部４５を備えている。送風機４４は、角筒状のフレーム４６と、このフレーム４６の外周に張り出す第２フランジ部４７とを備え、フレーム４６内にプロペラファン７を支持している。イオン生成手段４３の空気吹出し口３は、外筒部８と内筒部９とにより形成されており、この構成は前述の第１の実施形態と同様である。そして、第５の実施形態の送風式イオン生成装置Ｅにおいては、イオン生成手段４３の第１フランジ部４５と送風機４４の第２フランジ部４７とがねじ部材４８により連結され、これによってイオン生成手段４３と送風機４４とが一体とされている。更に、送風機４４の外周には角筒状の外装フレーム４９が設けられている。なお、外装フレーム４９は、必要に応じて設けられるものであり、不要であれば設けなくてもよい。第５の実施形態の送風式イオン生成装置Ｅは、以上の構成により、一層コンパクトに構成することができるだけでなく、例えば、既存の送風機４４にねじ部材４８を介して連結することが可能となる。また、それ以外には、図１９及び図２０に示すように、角筒状のフレーム５０を備える送風機５１に前記イオン生成手段４３を着脱自在に連結することも可能となる。即ち、第１フランジ部４５と送風機５１のフレーム５０とに取り外し自在の連結具５２を設けることで、既存の送風機５１へのイオン生成手段４３の増設が容易となるだけでなく、送風機５１からのイオン生成手段４３の取り外しも容易となる。 Next, a fifth embodiment of the present invention will be described with reference to FIGS. The blowing type ion generator E of 5th Embodiment is comprised by the ion production | generation means 43 and the air blower 44, as shown in FIG.17 and FIG.18. The ion generating means 43 includes a first flange portion 45 that projects to the outer periphery of the front air outlet 3. The blower 44 includes a rectangular tube-shaped frame 46 and a second flange portion 47 projecting to the outer periphery of the frame 46, and supports the propeller fan 7 in the frame 46. The air outlet 3 of the ion generating means 43 is formed by the outer cylinder part 8 and the inner cylinder part 9, and this configuration is the same as that of the first embodiment. And in the ventilation type ion generator E of 5th Embodiment, the 1st flange part 45 of the ion production | generation means 43 and the 2nd flange part 47 of the air blower 44 are connected by the screw member 48, and, thereby, an ion production | generation means 43 and the blower 44 are integrated. Further, a rectangular tube-shaped exterior frame 49 is provided on the outer periphery of the blower 44. The exterior frame 49 is provided as necessary, and may be omitted if unnecessary. The blow type ion generating apparatus E of the fifth embodiment can be configured more compactly by the above configuration, and can be connected to the existing blower 44 via the screw member 48, for example. . In addition, as shown in FIGS. 19 and 20, the ion generating means 43 can be detachably connected to a blower 51 having a rectangular tube-shaped frame 50. That is, by providing a detachable connector 52 on the first flange portion 45 and the frame 50 of the blower 51, not only can the ion generating means 43 be added to the existing blower 51, but also from the blower 51. Removal of the ion generating means 43 is also facilitated.

以上のように本発明の送風式イオン生成装置は、各実施形態において説明した通り各種の構成を採用することができるものであるが、更に本発明者は、本発明の送風式イオン生成装置と従来の送風式イオン生成装置との除電効果を比較する試験を行い、本発明の送風式イオン生成装置の除電特性が良好であることを確認した。そこで、この試験によって確認された本発明の送風式イオン生成装置の除電特性について説明する。 As described above, the blast ion generator of the present invention can employ various configurations as described in the embodiments, but the inventor further includes the blast ion generator of the present invention. The test which compares the static elimination effect with the conventional ventilation type ion generator was conducted, and it confirmed that the static elimination characteristic of the ventilation type ion generator of this invention was favorable. Therefore, the static elimination characteristics of the blower ion generator of the present invention confirmed by this test will be described.

先ず、送風式イオン生成装置の特性試験を行なう試験装置について説明すれば、試験装置は、図２１に示すように、金属製プレート５３の電荷減衰時間及びイオンバランスを測定する帯電プレートモニタ５４が採用されている。帯電プレートモニタ５４は、本体５５側面に絶縁体による支持部５６を介して１５０mm角の前記金属製プレート５３を支持する。金属製プレート５３は除電すべき帯電物を模擬するものである。本体５５には、表面電位測定装置５７、高圧電源５８及びタイマ５９が内蔵されており、金属製プレート５３には、高圧電源５８から電荷が与えられる。金属製プレート５３の電圧は、表面電位測定装置５７により測定され、その電圧の減衰時間はタイマ５９により測定される。 First, a description will be given of a test apparatus that performs a characteristic test of the blower ion generator. As shown in FIG. 21, the test apparatus employs a charged plate monitor 54 that measures the charge decay time and ion balance of the metal plate 53. Has been. The charging plate monitor 54 supports the metal plate 53 of 150 mm square on the side surface of the main body 55 via a support portion 56 made of an insulator. The metal plate 53 simulates a charged object to be neutralized. The main body 55 incorporates a surface potential measuring device 57, a high voltage power source 58, and a timer 59, and the metal plate 53 is given a charge from the high voltage power source 58. The voltage of the metal plate 53 is measured by the surface potential measuring device 57, and the decay time of the voltage is measured by the timer 59.

そして、帯電プレートモニタ５４の一側方には所定の距離Ｌを存して本発明の送風式イオン生成装置Ｂ´、又は従来の送風式イオン生成装置を配置する。送風式イオン生成装置Ｂ´において生成された空気イオンは空気流により帯電プレートモニタ５４の金属製プレート５３に移送される。このとき、例えば、空気中の正負イオンに偏りがある場合には、金属製プレート５３に電荷が蓄積して、その電圧の絶対値が大きくなる。この電圧はオフセット電圧と呼ばれ、イオンバランスの指標となる。また、金属製プレート５３を高圧電源５８により±１０００Ｖに帯電させ、これに送風式イオン生成装置Ｂ´から送り出された空気イオンを当てて中和し、±１００Ｖまで低下するのに要する減衰時間を測定する。 Then, a blowing ion generator B ′ of the present invention or a conventional blowing ion generator is disposed at one side of the charging plate monitor 54 with a predetermined distance L. Air ions generated in the blower ion generator B ′ are transferred to the metal plate 53 of the charging plate monitor 54 by an air flow. At this time, for example, when positive and negative ions in the air are biased, charges are accumulated in the metal plate 53, and the absolute value of the voltage increases. This voltage is called an offset voltage and serves as an index of ion balance. Further, the metal plate 53 is charged to ± 1000 V by the high-voltage power source 58, neutralized by applying air ions sent from the blower ion generator B ′ to this, and the decay time required to decrease to ± 100 V is obtained. taking measurement.

この試験における本発明の送風式イオン生成装置Ｂ´は、第２の実施形態において示した送風式イオン生成装置Ｂを用い、その放電電極１４に替えて、図６に示す平板環状基部２３と鋸歯状突起２４とにより構成された放電電極２５を採用した。なお、本発明の送風式イオン生成装置Ｂ´の正面形状は縦１４０mm、横１４０mmの正方形とした。 The blowing ion generator B ′ of the present invention in this test uses the blowing ion generator B shown in the second embodiment, and instead of the discharge electrode 14, the flat plate annular base 23 and the sawtooth shown in FIG. The discharge electrode 25 constituted by the projections 24 was employed. In addition, the front shape of the blast type ion generator B ′ of the present invention was a square having a length of 140 mm and a width of 140 mm.

また、従来の送風式イオン生成装置として採用したものは、図示しないが、筐体正面形状が縦１７０mm、横１４０mmの縦長であり、筐体内部に送風機が設けられ、更に筐体前面には全面が開放された円筒状の空気吹出し口が設けられている。そして、この空気吹出し口の内側には、円環状の金属棒の外周に先端鋭利な８本の放電針が放射状に配設された放電電極が取り付けられ、空気吹出し口の外周には接地された金属製の円筒状の対向電極が装着されているものを用いた。 In addition, although not shown in the figure, a conventional blower ion generator employs a casing front shape that is 170 mm long and 140 mm wide, and a blower is provided inside the case. A cylindrical air outlet opening is provided. Inside the air outlet, a discharge electrode having eight discharge needles arranged radially on the outer periphery of an annular metal rod is attached, and the outer periphery of the air outlet is grounded. The one provided with a metal cylindrical counter electrode was used.

両者の高圧電源は圧電トランスで構成され、出力電圧の実効値は２ｋＶ、周波数は６３ｋＨｚである。なお、前記の距離Ｌは３００mm、金属製プレート５３位置での空気流の速度は約１．５m/sとした。 Both high-voltage power supplies are composed of piezoelectric transformers, and the effective value of the output voltage is 2 kV and the frequency is 63 kHz. The distance L was 300 mm, and the air flow velocity at the position of the metal plate 53 was about 1.5 m / s.

本発明の送風式イオン生成装置Ｂ´と従来の送風式イオン生成装置との比較結果を表１に示す。 Table 1 shows a comparison result between the blower ion generator B ′ of the present invention and the conventional blower ion generator.

表１においては、本発明の送風式イオン生成装置Ｂ´を用いた場合と従来の送風式イオン生成装置を用いた場合とで、除電による金属製プレート５３における電圧の減衰時間（秒）と、イオンバランスを示すオフセット電圧（Ｖ）とを比較した。表１に示すように、本発明のものは、従来のものと同等の除電特性が得られており、更に、本発明のものは従来のものに比して、正負の電圧の減衰時間に偏りが少ないため、空気イオンが正負共に効率よく金属製プレート５３に供給されることが判る。

In Table 1, the voltage decay time (seconds) in the metal plate 53 due to static elimination, when using the blower ion generator B ′ of the present invention and when using the conventional blower ion generator, The offset voltage (V) indicating ion balance was compared. As shown in Table 1, according to the present invention, the static elimination characteristics equivalent to those of the conventional one are obtained, and the present invention is biased toward the decay time of positive and negative voltages as compared with the conventional one. Therefore, it can be seen that air ions are efficiently supplied to the metal plate 53 in both positive and negative directions.

本発明の第１の実施形態の送風式イオン生成装置の正面図。The front view of the ventilation type | formula ion generator of the 1st Embodiment of this invention. 図１のII−II線断面図。II-II sectional view taken on the line of FIG. 第１の実施形態の送風式イオン生成装置の一部を取り除いて示す説明的正面図。The explanatory front view which removes and shows a part of ventilation type | mold ion generator of 1st Embodiment. 本発明の第２の実施形態の送風式イオン生成装置の正面図。The front view of the ventilation type | formula ion generator of the 2nd Embodiment of this invention. 図４のＶ−Ｖ線断面図。VV sectional view taken on the line of FIG. 他の放電電極の構成を示す正面図。The front view which shows the structure of another discharge electrode. 図６のVII−VII線断面図。VII-VII sectional view taken on the line of FIG. 他の放電電極の構成を示す正面図。The front view which shows the structure of another discharge electrode. 図８の放電電極の裏面側を示す説明図。Explanatory drawing which shows the back surface side of the discharge electrode of FIG. 図９のＸ−Ｘ線断面図。XX sectional drawing of FIG. 他の放電電極の構成を示す正面図。The front view which shows the structure of another discharge electrode. 本発明の第３の実施形態の送風式イオン生成装置の正面図。The front view of the ventilation type | formula ion generator of the 3rd Embodiment of this invention. 図１２のXIII−XIII線断面図。XIII-XIII sectional view taken on the line of FIG. 第３の実施形態の送風式イオン生成装置の一部を取り除いて示す説明的正面図。The explanatory front view which removes and shows a part of ventilation type | mold ion generator of 3rd Embodiment. 本発明の第４の実施形態の送風式イオン生成装置の正面図。The front view of the ventilation type | formula ion generator of the 4th Embodiment of this invention. 図１５のXVI−XVI線断面図。FIG. 16 is a sectional view taken along line XVI-XVI in FIG. 15. 本発明の第５の実施形態の送風式イオン生成装置の正面図。The front view of the ventilation type | mold ion generator of the 5th Embodiment of this invention. 図１７のXVIII−XVIII線断面図。XVIII-XVIII sectional view taken on the line of FIG. 第５の実施形態の送風式イオン生成装置のにおける他の例を示す正面図。The front view which shows the other example in the ventilation type | formula ion generator of 5th Embodiment. 図１９の送風式イオン生成装置の側面図。The side view of the ventilation type | formula ion generator of FIG. 除電特性を評価する試験装置の概略構成を示す説明図。Explanatory drawing which shows schematic structure of the test apparatus which evaluates static elimination characteristics.

Explanation of symbols

Ａ，Ｂ，Ｂ´，Ｃ，Ｄ，Ｅ…送風式イオン生成装置、１，４３…イオン生成手段、２，４４，５１…送風機、７…プロペラファン、３…空気吹出し口、８，２０，３０…外筒部、９…内筒部、１３…交流高圧電源、１２…電源室、１４，２５，２６，２８…放電電極、１５…環状基部、１６…放電針、１７…支持板（平板部材）、１８，３６，３８…高圧ケーブル、２２…円筒部材、２３…平板環状基部、２４…鋸歯状突起、２７…平板環状部材、２９…円弧基部、３３…正の放電針（正の放電電極）、３４…負の放電針（負の放電電極）、３５…直流高圧電源。 A, B, B ', C, D, E ... Air blowing type ion generator, 1, 43 ... Ion generating means, 2, 44, 51 ... Air blower, 7 ... Propeller fan, 3 ... Air outlet, 8, 20, DESCRIPTION OF SYMBOLS 30 ... Outer cylinder part, 9 ... Inner cylinder part, 13 ... AC high voltage power supply, 12 ... Power supply chamber, 14, 25, 26, 28 ... Discharge electrode, 15 ... Annular base, 16 ... Discharge needle, 17 ... Support plate (flat plate) Members), 18, 36, 38 ... high pressure cable, 22 ... cylindrical member, 23 ... flat plate annular base, 24 ... sawtooth projection, 27 ... flat plate annular member, 29 ... arc base, 33 ... positive discharge needle (positive discharge) Electrode), 34 ... negative discharge needle (negative discharge electrode), 35 ... direct current high voltage power source.

Claims

A blower for sending air by rotation of a propeller fan; and an ion generating means for generating air ions located on the air sending side of the blower, and the air ions generated by the ion generating means are converted into air from the blower. In the blower type ion generator transferred by the flow,
The ion generating means includes an air outlet for guiding the air sent from the blower in a blowing direction, an AC high voltage power source that outputs an AC high voltage, and a corona discharge when a high voltage is applied from the AC high voltage power source. And a corona discharge generating electrode that generates air ions from this corona discharge,
The air outlet has a cylindrical outer cylinder portion having a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan, and is located on the inner side of the outer cylinder portion and has a predetermined circumference around the peripheral wall of the outer cylinder portion. It is formed in an annular shape by a gap between the cylindrical inner cylinder part having a surrounding wall facing the gap,
The AC high-voltage power supply is housed in a power supply chamber formed by closing both axial ends of the inner cylinder portion,
The corona discharge generating electrode is disposed facing the air outlet, is provided on the inner cylinder portion, and is provided on the outer cylinder portion with a discharge electrode to which a high voltage is applied by the AC high voltage power source. A blower-type ion generator comprising: a grounded counter electrode facing the discharge electrode.

The blower ion generator according to claim 1, wherein the counter electrode is formed by the grounded metal outer cylinder portion.

The blower ion generator according to claim 1, wherein the counter electrode is formed of a metal cylindrical member that is attached to and grounded on an outer periphery of the outer cylinder portion made of an insulating material.

The discharge electrode is provided on the inner surface side of the inner wall of the inner cylinder portion and connected to the AC high-voltage power source via a high-voltage cable, and the discharge electrode has a predetermined interval in the circumferential direction of the annular base portion. 4. A plurality of sharp discharge tips that are formed integrally with the annular base and project through the peripheral wall of the inner cylinder and project to the air outlet. The blow type ion generator according to claim 1.

The discharge electrode is provided on the inner surface of the inner wall of the inner wall and connected to the AC high-voltage power source via a high-voltage cable, and a predetermined circumferentially outer peripheral edge of the flat plate base. It is formed integrally with the flat plate annular base with a gap, and is composed of a plurality of sharp saw-tooth projections penetrating the peripheral wall of the inner cylinder portion and projecting to the air outlet. The ventilation type | formula ion generator of any one of Claims 1 thru | or 3.

The flat plate annular base is polymerized via a flat plate member made of an insulating material to a flat metal plate annular member of the same shape facing the flat plate annular base, and the flat plate annular member is connected to the AC high voltage power source via the high voltage cable. 6. The blower type ion generator according to claim 5, wherein an AC high voltage is applied to the flat plate base through a capacitor by connecting.

The flat plate annular base is formed by arranging a plurality of arc bases formed in an arc shape in an annular shape at a predetermined interval, and each arc base portion is provided with one or more sawtooth projections. The blower type ion generator according to claim 6 characterized by things.

A blower for sending air by rotation of a propeller fan; and an ion generating means for generating air ions located on the air sending side of the blower, and the air ions generated by the ion generating means are converted into air from the blower. In the blower type ion generator transferred by the flow,
The ion generation means includes an air outlet that guides air sent from the blower in a blowing direction, a DC high-voltage power supply that outputs positive and negative DC high voltages separately, and a high voltage applied from the DC high-voltage power supply. And a corona discharge generating electrode for generating corona discharge and generating air ions from the corona discharge,
The air outlet has a cylindrical outer cylinder portion having a peripheral wall corresponding to the outer diameter of the rotation circumference of the propeller fan, and is located on the inner side of the outer cylinder portion and has a predetermined circumference around the peripheral wall of the outer cylinder portion. It is formed in an annular shape by a gap between the cylindrical inner cylinder part having a surrounding wall facing the gap,
The DC high-voltage power supply is housed in a power supply chamber formed by closing both axial ends of the inner cylinder portion,
The corona discharge generating electrode is disposed facing the air outlet, is provided on the inner cylinder portion, and a positive discharge electrode to which a positive high voltage is applied by the DC high-voltage power source, and the positive discharge A blower type ion generator comprising: a negative discharge electrode which is provided in the inner cylinder portion adjacent to an electrode and to which a negative high voltage is applied by the DC high voltage power source.

9. The discharge electrode is supported by a support member that is detachably attached to the inner cylinder part, and is removable from the inner cylinder part integrally with the support member. The blower type ion generator of any one of these.

The blower type ion generator according to any one of claims 1 to 9, wherein the ion generation means is detachably connected to a frame that houses a propeller fan of the blower.