JP2006196378A - Static eliminator - Google Patents
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- JP2006196378A JP2006196378A JP2005008477A JP2005008477A JP2006196378A JP 2006196378 A JP2006196378 A JP 2006196378A JP 2005008477 A JP2005008477 A JP 2005008477A JP 2005008477 A JP2005008477 A JP 2005008477A JP 2006196378 A JP2006196378 A JP 2006196378A
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- 230000003068 static effect Effects 0.000 title claims abstract description 67
- 150000002500 ions Chemical class 0.000 claims description 29
- 239000012212 insulator Substances 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims 2
- 238000009825 accumulation Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 206010000369 Accident Diseases 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
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- Elimination Of Static Electricity (AREA)
Abstract
Description
本発明は、除電器に関するものである。 The present invention relates to a static eliminator.
従来の除電器が、例えば、特開２０００−１３８０９０号公報、特開２００３−２０３７４５号公報に記載されている。これらの公報に記載の従来の除電器の放電部の構造は、下記のようなものである。
（１）放電針への印加電圧は、イオンバランスを制御する目的以外は常に一定であった。
（２）放電針に対向する対向電極を用いている。
（３）放電針と対向電極の間に発生したイオンを蓄積するイオン蓄積部材を用い、イオン蓄積部材として導体又は絶縁体で被覆した導体が用いられている。
（４）圧縮空気の流速が、放電針とその周囲において、一様である。
(1) The voltage applied to the discharge needle was always constant except for the purpose of controlling the ion balance.
(2) A counter electrode facing the discharge needle is used.
(3) An ion storage member that stores ions generated between the discharge needle and the counter electrode is used, and a conductor covered with a conductor or an insulator is used as the ion storage member.
(4) The flow rate of the compressed air is uniform between the discharge needle and its surroundings.
従来の除電器の放電部の構造が前述のとおりであるため、以下のような問題があった。（１）放電針への印加電圧は、イオンバランスを制御する目的以外は常に一定であるため、一般的に放電開始時は放電維持時より大きなエネルギーすなわち大きな電圧が必要である。そのため、放電が開始した後の放電維持時には過大な電圧が印加されていた。結果として、放電針の減耗を引き起こし、寿命を縮めていた。また圧電トランス等の高電圧電源に過負荷を強いることになり寿命を縮めたり、加熱による火災事故を誘発していた。
（２）放電針に対向する対向電極を用いており、すなわち、高電圧を印加する放電電極に対向させて、グランドまたはグランドに近い電位の対向電極を配置しており、これにより放電は発生しやすくなるが、2つの電極を対向させねばならないため、構造を複雑にし、必要な部品点数を増やし、結果としてコスト高をもたらしている。
（３）放電電極の周囲にイオン蓄積部材を配置し、イオンバランスを自動的に調整させている。このような方式では構造を複雑にし、必要な部品点数を増やし、結果としてコスト高をもたらしている。
（４）圧縮空気の流速が放電針とその周囲において、一様であるので、イオン化空気の吐出量を増やそうとすると圧縮空気の流量を多くしなければならない。ところがコロナ放電をしている放電針の先端に早い空気の流れが当たると、放電が不安定になり、イオンバランスが悪化し、最悪、コロナ放電が停止してしまう。そのため空気の流量を制限せざるを得ず、大量の空気を用いて強力に除電したり除塵することは難しかった。
Since the structure of the discharge part of the conventional static eliminator is as described above, there are the following problems. (1) Since the voltage applied to the discharge needle is always constant except for the purpose of controlling the ion balance, generally, a larger energy, that is, a larger voltage is required at the start of discharge than when the discharge is maintained. For this reason, an excessive voltage was applied when maintaining the discharge after the start of the discharge. As a result, wear of the discharge needle was caused and the life was shortened. In addition, the high voltage power source such as a piezoelectric transformer is overloaded, shortening the service life or inducing a fire accident due to heating.
(2) A counter electrode facing the discharge needle is used, that is, a counter electrode having a potential close to the ground or the ground is disposed opposite to the discharge electrode to which a high voltage is applied, thereby generating a discharge. Although it becomes easier, the two electrodes must face each other, which complicates the structure and increases the number of parts required, resulting in higher costs.
(3) An ion accumulating member is arranged around the discharge electrode to automatically adjust the ion balance. Such a method complicates the structure and increases the number of necessary parts, resulting in high costs.
(4) Since the flow rate of the compressed air is uniform between the discharge needle and its surroundings, the flow rate of the compressed air must be increased to increase the discharge amount of ionized air. However, when a fast air flow hits the tip of the discharge needle that is performing corona discharge, the discharge becomes unstable, the ion balance deteriorates, and worst, corona discharge stops. Therefore, the air flow rate has to be limited, and it has been difficult to perform strong charge removal or dust removal using a large amount of air.
したがって、本発明の目的は、安価に製造でき、簡単な構成で、放電維持時に過大な電圧を印加することなく除電を行うことができる除電器を提供することにある。 Accordingly, an object of the present invention is to provide a static eliminator that can be manufactured at a low cost and can be eliminated without applying an excessive voltage when maintaining discharge with a simple configuration.
また、本発明の他の目的は、圧縮空気を用いるが、コロナ放電の安定を損なうことなく強力な除電を行うことができる除電器を提供することにある。 Another object of the present invention is to provide a static eliminator capable of performing strong static elimination without impairing the stability of corona discharge using compressed air.
前述の課題を解決するために、本発明は、放電針へ、コロナ放電開始用電圧と該コロナ放電開始用電圧より低いコロナ放電維持用電圧とを交互に印加することを特徴とする除電器を採用するものである。 In order to solve the above-described problems, the present invention provides a static eliminator characterized by alternately applying a corona discharge start voltage and a corona discharge maintenance voltage lower than the corona discharge start voltage to a discharge needle. Adopted.
本発明によると、安価に製造でき、簡単な構成で、放電維持時に過大な電圧を印加することなく除電を行うことができる除電器が得られる。また、圧縮空気を用いるが、コロナ放電の安定を損なうことなく強力な除電を行うことができる除電器が得られる。 According to the present invention, it is possible to obtain a static eliminator that can be manufactured at low cost and can be eliminated with a simple configuration without applying an excessive voltage when maintaining discharge. Moreover, although compressed air is used, a static eliminator capable of performing strong static elimination without impairing the stability of corona discharge can be obtained.
本発明では、放電針へ、コロナ放電開始用電圧と該コロナ放電開始用電圧より低いコロナ放電維持用電圧とを交互に印加する。 In the present invention, a corona discharge start voltage and a corona discharge maintenance voltage lower than the corona discharge start voltage are alternately applied to the discharge needle.
（実施例１）
図1は、除電器において放電電極に印加される実施例１の電圧の波形を示すグラフである。なお、図１で示す電圧（および図２、図３で示す電圧）は、除電器の構成に応じて、交流高周波電圧または直流電圧が用いられるものであり、交流高周波電圧を用いる場合には、図示の便宜上、その包絡線のみを示している。以下の説明では、交流高周波電圧を用いる場合について説明するが、本発明は直流電圧を用いる場合も含むものである。
Example 1
FIG. 1 is a graph showing a waveform of a voltage of Example 1 applied to a discharge electrode in a static eliminator. The voltage shown in FIG. 1 (and the voltage shown in FIG. 2 and FIG. 3) is an AC high frequency voltage or a DC voltage depending on the configuration of the static eliminator. For convenience of illustration, only the envelope is shown. In the following description, a case where an AC high frequency voltage is used will be described, but the present invention includes a case where a DC voltage is used.
図１において、放電電極（または放電針ともいう）（図１には、図示しないが、図７以下の図面で示す）に、コロナ放電が始まる最低限の電圧より少し高めのコロナ放電開始用電圧をコロナ放電開始に要する僅かな時間のみ印加し、次にコロナ放電を維持するための最小電圧より少し高めのコロナ放電維持用電圧をやや長い時間印加する。このサイクルを繰り返す。 In FIG. 1, the voltage for starting corona discharge is slightly higher than the minimum voltage at which corona discharge starts at the discharge electrode (also referred to as discharge needle) (not shown in FIG. 1, but shown in FIG. 7 and subsequent drawings). Is applied for a short time required to start corona discharge, and then a voltage for maintaining corona discharge slightly higher than the minimum voltage for maintaining corona discharge is applied for a slightly longer time. Repeat this cycle.
この電圧印加方式では、放電開始時も放電維持時も、常時、必要最低限の電圧で除電器を働かすことができる。過剰な電圧が印加されないので、放電針の減耗が少なくなり、寿命が長くなる。また圧電トランス等の高電圧発生素子に過剰電圧を印加しないので寿命を長くし、加熱による火災事故を防ぐことができる。 With this voltage application method, the static eliminator can be operated at the minimum necessary voltage at all times, both at the start of discharge and at the time of sustaining discharge. Since an excessive voltage is not applied, wear of the discharge needle is reduced and the life is extended. Further, since an excessive voltage is not applied to a high voltage generating element such as a piezoelectric transformer, the life can be extended and a fire accident due to heating can be prevented.
また何らかの原因でコロナ放電が停止しても、次のタイミングでコロナ放電開始用電圧 が印加されるので、すぐに放電が再開される。放電開始電圧と維持電圧の繰り返しサイクルが短ければ、一瞬の放電停止は除電という実務上、ほとんど問題にならない。この方式によれば簡単な制御で非常に安定した安全な除電器ができる。 Even if the corona discharge is stopped for some reason, the corona discharge start voltage is applied at the next timing, so the discharge is restarted immediately. If the repetition cycle of the discharge start voltage and the sustain voltage is short, a momentary stop of the discharge hardly poses a problem in practice of static elimination. According to this method, a very stable and safe static eliminator can be obtained with simple control.
図４は図1で示す実施例１の電圧波形を発生する回路の一例を示す回路ブロック図である。図４において、ＤＣ電源入力によりコロナ放電開始用電圧を発生するコロナ放電開始用電圧発生器１０とコロナ放電維持用電圧を発生するコロナ放電維持用電圧発生器１２とが設けられている。これらの発生器１０、１２で発生された電圧はスイッチ１８の接点に接続されており、タイマ２０により所定の時間間隔でスイッチが切り替えられて、出力される。
（実施例２）
図２は、除電器において放電電極に印加される実施例２の電圧の波形を示すグラフである。実施例1では、コロナ放電開始用電圧として矩形波の電圧を用いているが、実施例2では、コロナ放電開始用電圧として急峻に立ち上がる電圧を用い、その後コロナ放電維持用電圧として滑らかに下がる電圧を用いている。すなわち、放電開始に際し、コロナ放電開始用電圧が放電開始に必要な僅かな時間だけ印加され、その後は放電維持用の低い電圧が印加される。この方式では電源の構造が簡単で安くできる。
FIG. 4 is a circuit block diagram showing an example of a circuit for generating a voltage waveform according to the first embodiment shown in FIG. In FIG. 4, a corona discharge start voltage generator 10 that generates a corona discharge start voltage by DC power input and a corona discharge sustain voltage generator 12 that generates a corona discharge sustain voltage are provided. The voltages generated by these generators 10 and 12 are connected to the contacts of the switch 18, and the timer 20 switches the switches at a predetermined time interval and outputs them.
(Example 2)
FIG. 2 is a graph showing the waveform of the voltage of Example 2 applied to the discharge electrode in the static eliminator. In Example 1, a rectangular wave voltage is used as the corona discharge start voltage, but in Example 2, a voltage that rises sharply as the corona discharge start voltage is used, and then falls smoothly as the corona discharge maintenance voltage. Is used. That is, at the start of discharge, the voltage for starting corona discharge is applied for a short time necessary for starting discharge, and thereafter, a low voltage for maintaining discharge is applied. With this method, the structure of the power supply is simple and inexpensive.
図５は図２で示す実施例２の電圧波形を発生する回路の一例を示す回路ブロック図である。図５において、ＤＣ電源入力により発振器２２の指示を受け、間欠的にコロナ放電開始用電圧を発生するコロナ放電開始用電圧発生器１０と、コロナ放電維持用電圧を発生するコロナ放電維持用電圧発生器１２とが設けられている。これらの発生器１０、１２で発生された電圧は、それぞれ、キャパシタ２４と逆流防止用のダイオード１４、および逆流防止用のダイオード１６を介して出力される。
（実施例３）
図３は、除電器において放電電極に印加される実施例３の電圧の波形を示すグラフである。図３において、やや低めのコロナ放電維持用電圧を印加して放電を放電電流センサ（図６参照）でモニターし、放電が停止したときのみ、やや高めのコロナ放電開始用電圧を短時間印加する。これにより常時、必要最低限の電圧で安定的に動作するので、放電針の減耗が少なくなり、寿命が長くなる。また圧電トランス等の高電圧素子に常時過剰電圧を印加しないので寿命を長くし、加熱による火災事故を防ぐことができる。
FIG. 5 is a circuit block diagram showing an example of a circuit for generating a voltage waveform according to the second embodiment shown in FIG. In FIG. 5, a corona discharge start voltage generator 10 that intermittently generates a corona discharge start voltage in response to an instruction from the oscillator 22 by a DC power input, and a corona discharge sustain voltage generation that generates a corona discharge sustain voltage. A vessel 12 is provided. The voltages generated by these generators 10 and 12 are output via a capacitor 24, a backflow preventing diode 14 and a backflow preventing diode 16, respectively.
(Example 3)
FIG. 3 is a graph showing the waveform of the voltage of Example 3 applied to the discharge electrode in the static eliminator. In FIG. 3, a slightly lower corona discharge maintaining voltage is applied and the discharge is monitored by a discharge current sensor (see FIG. 6), and a slightly higher corona discharge starting voltage is applied for a short time only when the discharge is stopped. . As a result, since it always operates stably at the minimum necessary voltage, the wear of the discharge needle is reduced and the life is extended. Moreover, since an excessive voltage is not constantly applied to a high voltage element such as a piezoelectric transformer, the life can be extended and a fire accident due to heating can be prevented.
図６は図３で示す実施例３の電圧波形を発生する回路の一例を示す回路ブロック図である。図６において、ＤＣ電源入力（図示せず）によりコロナ放電開始用電圧を発生するコロナ放電開始用電圧発生器１０と、コロナ放電維持用電圧を発生するコロナ放電維持用電圧発生器１２とが設けられている。これらの発生器１０、１２で発生された電圧は、それぞれ、放電電流センサ２６によって検出された非放電状態（放電オフ）と放電状態（放電オン）に応じて切り替えられ、逆流防止用のダイオード１４、逆流防止用のダイオード１６を介して出力される。 FIG. 6 is a circuit block diagram showing an example of a circuit for generating a voltage waveform according to the third embodiment shown in FIG. In FIG. 6, a corona discharge start voltage generator 10 for generating a corona discharge start voltage by a DC power input (not shown) and a corona discharge maintenance voltage generator 12 for generating a corona discharge sustain voltage are provided. It has been. The voltages generated by these generators 10 and 12 are switched according to the non-discharge state (discharge off) and the discharge state (discharge on) detected by the discharge current sensor 26, respectively, and the backflow preventing diode 14 is used. , And output through a diode 16 for preventing backflow.
なお、放電オフが頻繁に発生する場合には、何らかの異常の可能性があり、点検したり、コロナ放電維持用電圧を高めに設定しなおす必要がある。このため、所定時間内にコロナ放電開始用電圧を印加する頻度が所定値を超えたら異常警報を発するようにし、点検を促したり、コロナ放電維持用電圧を調整する。
（実施例４）
図７は、従来の除電器と本発明の除電器を比較し易いように示したそれぞれの断面図であり、図７ａ、図７ｂが従来の除電器を示し、図７ｃ、図７ｄが本発明の除電器を示す。従来は放電を容易にするために、図７ａ、図７ｂに示すように、放電針３０に対向する導体の対向電極３４または３６を配置し、コロナ放電をさせている。
When the discharge is frequently turned off, there is a possibility of some abnormality, and it is necessary to check or reset the corona discharge maintenance voltage to a higher level. For this reason, if the frequency of applying the voltage for starting corona discharge exceeds a predetermined value within a predetermined time, an abnormality alarm is issued to prompt inspection and adjust the voltage for maintaining corona discharge.
Example 4
FIG. 7 is a cross-sectional view showing the conventional static eliminator and the static eliminator of the present invention for easy comparison. FIGS. 7a and 7b show the conventional static eliminator, and FIGS. 7c and 7d show the present invention. The static eliminator is shown. Conventionally, in order to facilitate discharge, as shown in FIGS. 7a and 7b, a counter electrode 34 or 36 of a conductor facing the discharge needle 30 is arranged to cause corona discharge.
図７ａで示す従来例では、対向電極３４が仕切り壁３２と共に放電針３０を囲む放電室を形成しており、放電室内に導入される圧縮空気で内圧が上がっている中でコロナ放電する場合であり、図７ｂで示す従来例では、対向電極３６を用いるが、放電針３０を囲む放電室が無く、大気圧の下で開放空間中でコロナ放電する場合である。 In the conventional example shown in FIG. 7a, the counter electrode 34 forms a discharge chamber that surrounds the discharge needle 30 together with the partition wall 32, and corona discharge occurs while the internal pressure is increased by the compressed air introduced into the discharge chamber. In the conventional example shown in FIG. 7b, the counter electrode 36 is used, but there is no discharge chamber surrounding the discharge needle 30, and corona discharge is performed in an open space under atmospheric pressure.
これらの場合の放電針への印加電圧は、やや低めで良いが、対向電極を設けねばならず、構造的に複雑で、必要な部品点数を増やし、コスト高であった。 In these cases, the applied voltage to the discharge needle may be slightly lower, but the counter electrode must be provided, which is structurally complicated, increases the number of necessary parts, and is expensive.
これに対し、本発明では、対向電極を用いずに、絶縁体のカバー３８が仕切り壁３２と共に放電室を形成している。または、単なる絶縁体のカバー５０を用いている。この結果、コロナ放電しにくくなるので、実施例1、2で示した駆動方式、即ちコロナ放電開始用電圧を短時間のみ印加して放電開始を確実にし、さらに放電開始後は、電圧が低いコロナ放電維持用電圧に切り替えることを繰り返す駆動方式や、実施例3で示したコロナ放電開始用電圧を短時間のみ印加し、放電開始を確実にし、放電開始後は、電圧が低いコロナ放電維持用電圧に切り替える方式を採用している。実施例３では、常時、前述の放電電流センサ２６で放電をモニターし、放電停止を感知したら、コロナ放電開始用電圧を短時間のみ印加し、放電開始を確実にする。 On the other hand, in the present invention, the insulating cover 38 forms the discharge chamber together with the partition wall 32 without using the counter electrode. Alternatively, a simple insulating cover 50 is used. As a result, corona discharge is difficult to occur. Therefore, the driving system shown in Examples 1 and 2, that is, the voltage for starting corona discharge is applied only for a short time to ensure the start of discharge. A driving method that repeatedly switches to a discharge maintaining voltage, or the voltage for starting corona discharge shown in Example 3 is applied only for a short period of time to ensure the start of discharge. After the start of discharge, the voltage for maintaining corona discharge is low. The method to switch to is adopted. In the third embodiment, the discharge is constantly monitored by the above-described discharge current sensor 26, and when discharge stop is detected, the voltage for starting corona discharge is applied only for a short time to ensure the start of discharge.
以上の通り、この実施例では、対向電極が不要なため構造が簡単でコストも安くなる。
（実施例５）
図８は、従来の除電器と本発明の除電器を比較し易いように示したそれぞれの断面図であり、図８ａ、図８ｂが従来の除電器を示し、図８ｃ、図８ｄが本発明の除電器を示す。従来は、図８ａ、図８ｂに示すように、放電針３０と導体の対向電極３４の間にイオン蓄積部材４０を設けているが、イオン蓄積部材４０は導体または絶縁体で被覆された導体である。
As described above, in this embodiment, since the counter electrode is unnecessary, the structure is simple and the cost is reduced.
(Example 5)
FIG. 8 is a cross-sectional view showing the conventional static eliminator and the static eliminator of the present invention for easy comparison. FIGS. 8a and 8b show the conventional static eliminator, and FIGS. 8c and 8d show the present invention. The static eliminator is shown. Conventionally, as shown in FIGS. 8a and 8b, an ion accumulating member 40 is provided between the discharge needle 30 and the counter electrode 34 of the conductor. The ion accumulating member 40 is a conductor coated with a conductor or an insulator. is there.
図８ａで示す従来例では、対向電極３４が仕切り壁３２と共に放電針３０を囲む放電室を形成しており、圧縮空気で内圧が上がっている中でコロナ放電する場合であり、図８ｂで示す従来例では、放電針３０を囲む放電室が無く、大気圧の下で開放空間中でコロナ放電する場合である。 In the conventional example shown in FIG. 8a, the counter electrode 34 forms a discharge chamber surrounding the discharge needle 30 together with the partition wall 32, and corona discharge occurs while the internal pressure is increased by compressed air, and is shown in FIG. 8b. In the conventional example, there is no discharge chamber surrounding the discharge needle 30, and corona discharge is performed in an open space under atmospheric pressure.
対向電極３４はコロナ放電を容易にさせるための部材で、イオン蓄積部材４０はイオンバランスを改善するための部材である。構造が複雑で、必要な部品点数も多く、コスト高をもたらしていた。 The counter electrode 34 is a member for facilitating corona discharge, and the ion storage member 40 is a member for improving ion balance. The structure was complicated, and many parts were required, resulting in high costs.
これに対し、本発明では、放電針３０と好ましくは絶縁体（導体または絶縁被膜を施した導体でもよい）のイオン蓄積部材４２のみを用い、対向電極３４を不要としている。イオン蓄積部材を絶縁体で形成した場合、図８ｃに示すように、絶縁体のカバー３８と絶縁体のイオン蓄積部材４２を一体に成形でき、コストを安くできる。実施例1〜3の駆動方式を採用することによって、対向電極３４なしでも十分安定した放電を可能にし、さらにイオンバランスの良い除電器を実現できる。
（実施例６）
図９は、従来の除電器と本発明の除電器を比較し易いように示したそれぞれの断面図であり、図９ａが従来の除電器を示し、図９ｂが本発明の除電器を示す。コロナ放電は放電針３０の先端が強い風に曝されると、イオンバランスが悪化したり、放電が停止しやすくなり、不安定になる。そこで、図９ｂに示すように、本発明の実施例では、放電針３０の先端に強い風が当たらないように風除け４４を設けている。これにより安定した放電が行われる。
（実施例７）
図１０は本発明の実施例7の除電器の断面図である。圧縮空気は二手に分かれて、一部が放電針３０に廻りコロナ放電により作られたイオンを運び出し、残りはバイパスを通って、そのまま外部に噴射される。これにより、放電針３０に強い気流を与えないので安定なコロナ放電が確保できる。また作られたイオンはこの弱い気流で、放電針から前に送り出し、その後バイパスを通ってきた大量の気流に乗って外部に運び出される。こうして風量が多く、イオンバランスの良い、放電が安定した、強力な除電装置を実現できる。さらに、コストを安くするために、イオン蓄積部材４２は風除け４４と一体に形成することもできる。
On the other hand, in the present invention, only the discharge needle 30 and preferably an ion storage member 42 of an insulator (which may be a conductor or a conductor coated with an insulating film) are used, and the counter electrode 34 is not required. When the ion accumulating member is formed of an insulator, as shown in FIG. 8c, the insulating cover 38 and the insulating ion accumulating member 42 can be integrally formed, and the cost can be reduced. By adopting the driving methods of Embodiments 1 to 3, it is possible to achieve a sufficiently stable discharge without the counter electrode 34 and to realize a static eliminator with a good ion balance.
(Example 6)
FIG. 9 is a cross-sectional view showing the conventional static eliminator and the static eliminator of the present invention for easy comparison, FIG. 9a shows the conventional static eliminator, and FIG. 9b shows the static eliminator of the present invention. When the tip of the discharge needle 30 is exposed to a strong wind, the corona discharge becomes unstable because the ion balance deteriorates or the discharge tends to stop. Therefore, as shown in FIG. 9 b, in the embodiment of the present invention, a windbreak 44 is provided so that strong wind does not hit the tip of the discharge needle 30. Thereby, stable discharge is performed.
(Example 7)
FIG. 10 is a cross-sectional view of the static eliminator of Embodiment 7 of the present invention. The compressed air is divided into two parts, a part of which goes around the discharge needle 30 to carry out ions produced by corona discharge, and the rest passes through the bypass and is directly injected outside. Thereby, since a strong airflow is not given to the discharge needle 30, stable corona discharge can be secured. In addition, the generated ions are sent out from the discharge needle forward by this weak air current, and then carried outside by a large amount of air current passing through the bypass. In this way, a powerful static eliminator with a large air volume, good ion balance and stable discharge can be realized. Further, in order to reduce the cost, the ion accumulating member 42 can be formed integrally with the windshield 44.
１０ コロナ放電開始用電圧発生器
１２ コロナ放電維持用電圧発生器
２６ 放電電流センサ
３０ 放電電極（放電針）
３２ 仕切り壁
３４ 対向電極（従来例）
３６ 対向電極（従来例）
３８ カバー
４０ 導体または絶縁体被覆導体のイオン蓄積部材（従来例）
４２ 絶縁体のイオン蓄積部材
４４ 風除け
10 Voltage generator for starting corona discharge 12 Voltage generator for maintaining corona discharge 26 Discharge current sensor 30 Discharge electrode (discharge needle)
32 Partition wall 34 Counter electrode (conventional example)
36 Counter electrode (conventional example)
38 Cover 40 Ion accumulating member of conductor or insulator-coated conductor (conventional example)
42 Insulator ion storage member 44 Wind shield
Claims (9)
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| JP2005008477A JP4829503B2 (en) | 2005-01-17 | 2005-01-17 | Static eliminator |
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| JP2005008477A JP4829503B2 (en) | 2005-01-17 | 2005-01-17 | Static eliminator |
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| JP2010178365A Division JP5023200B2 (en) | 2010-08-09 | 2010-08-09 | Static eliminator |
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| JP2006196378A true JP2006196378A (en) | 2006-07-27 |
| JP2006196378A5 JP2006196378A5 (en) | 2008-08-21 |
| JP4829503B2 JP4829503B2 (en) | 2011-12-07 |
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| JP2008282715A (en) * | 2007-05-11 | 2008-11-20 | Midori Anzen Co Ltd | Ion balance adjusting circuit and static eliminator equipped with this |
| JP2010218751A (en) * | 2009-03-13 | 2010-09-30 | Omron Corp | Static eliminator |
| CN101902870A (en) * | 2008-12-18 | 2010-12-01 | 绿安全股份有限公司 | Static eliminator |
| US8773837B2 (en) | 2007-03-17 | 2014-07-08 | Illinois Tool Works Inc. | Multi pulse linear ionizer |
| US8885317B2 (en) | 2011-02-08 | 2014-11-11 | Illinois Tool Works Inc. | Micropulse bipolar corona ionizer and method |
| JP2015122326A (en) * | 2009-10-23 | 2015-07-02 | イリノイ トゥール ワークス インコーポレイティド | How to control corona discharge |
| US9125284B2 (en) | 2012-02-06 | 2015-09-01 | Illinois Tool Works Inc. | Automatically balanced micro-pulsed ionizing blower |
| USD743017S1 (en) | 2012-02-06 | 2015-11-10 | Illinois Tool Works Inc. | Linear ionizing bar |
| WO2016088327A1 (en) * | 2014-12-02 | 2016-06-09 | 株式会社デンソー | Air blower and air-conditioning device utilizing same |
| US9380689B2 (en) | 2008-06-18 | 2016-06-28 | Illinois Tool Works Inc. | Silicon based charge neutralization systems |
| US9918374B2 (en) | 2012-02-06 | 2018-03-13 | Illinois Tool Works Inc. | Control system of a balanced micro-pulsed ionizer blower |
| KR102148644B1 (en) * | 2019-03-13 | 2020-08-28 | 주식회사 네오세미텍 | System and method for managing total ion |
| WO2020189995A1 (en) * | 2019-03-15 | 2020-09-24 | 주식회사 제이테피언스 | System and method for preventing static electricity generation by means of positional attenuation time measurement |
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| US8773837B2 (en) | 2007-03-17 | 2014-07-08 | Illinois Tool Works Inc. | Multi pulse linear ionizer |
| JP2008282715A (en) * | 2007-05-11 | 2008-11-20 | Midori Anzen Co Ltd | Ion balance adjusting circuit and static eliminator equipped with this |
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| CN101902870A (en) * | 2008-12-18 | 2010-12-01 | 绿安全股份有限公司 | Static eliminator |
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| US9918374B2 (en) | 2012-02-06 | 2018-03-13 | Illinois Tool Works Inc. | Control system of a balanced micro-pulsed ionizer blower |
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| JP2016107175A (en) * | 2014-12-02 | 2016-06-20 | 株式会社デンソー | Air blower and air conditioner using the same |
| WO2016088327A1 (en) * | 2014-12-02 | 2016-06-09 | 株式会社デンソー | Air blower and air-conditioning device utilizing same |
| KR102148644B1 (en) * | 2019-03-13 | 2020-08-28 | 주식회사 네오세미텍 | System and method for managing total ion |
| WO2020185037A1 (en) * | 2019-03-13 | 2020-09-17 | 주식회사 네오세미텍 | Total ion management system and management method |
| WO2020189995A1 (en) * | 2019-03-15 | 2020-09-24 | 주식회사 제이테피언스 | System and method for preventing static electricity generation by means of positional attenuation time measurement |
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