WO2013027485A1 - Générateur d'ions et dispositif d'épuration de l'air équipé de celui-ci - Google Patents

Générateur d'ions et dispositif d'épuration de l'air équipé de celui-ci Download PDF

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Publication number
WO2013027485A1
WO2013027485A1 PCT/JP2012/066486 JP2012066486W WO2013027485A1 WO 2013027485 A1 WO2013027485 A1 WO 2013027485A1 JP 2012066486 W JP2012066486 W JP 2012066486W WO 2013027485 A1 WO2013027485 A1 WO 2013027485A1
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WO
WIPO (PCT)
Prior art keywords
electrode
discharge
ions
voltage
ion generator
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Application number
PCT/JP2012/066486
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English (en)
Japanese (ja)
Inventor
泰久 白山
直子 山本
愛雄 一井
哲也 江崎
与明 高土
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シャープ株式会社
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Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2013027485A1 publication Critical patent/WO2013027485A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H01T19/04—Devices providing for corona discharge having pointed electrodes

Definitions

  • the present invention relates to an ion generator that includes an induction electrode and a discharge electrode, and generates ions by corona discharge, and an air cleaning device including the ion generator.
  • ion generators that generate positive ions or negative ions by corona discharge are installed in air cleaners and put into practical use.
  • the former ion generator can produce a relaxing effect, and the latter ion generator can produce effects such as decomposition of mold and viruses floating in the air, removal of odors, and dust collection.
  • the amount of ions released into the target space may be increased.
  • the voltage applied to the discharge electrode is made higher in order to increase the amount of ions, there is a problem that the discharge noise generated with the ions and the amount of ozone harmful to the human body also increase. Therefore, methods have been studied for efficiently releasing ions into the target space without increasing the voltage applied to the discharge electrode.
  • Patent Document 1 discloses an efficient negative ion generator. Negative ions are generated when electrons are liberated from the electrode surface by applying a voltage to the electrodes, and the electrons are adsorbed on moisture or gas molecules. However, when negative ions increase and stay on the electrode surface, the electric field on the electrode surface is relaxed, making it difficult for electrons to be released from the electrode, and as a result, the production of negative ions is hindered.
  • Patent Document 1 includes an auxiliary electrode, and FIG. 7 shows a configuration diagram thereof.
  • the front opening of the cylindrical insulator 71 serves as an outlet 72 for negative ions, and the rear opening serves as an air intake 73.
  • An annular electrode A74 to which a low voltage is applied is held in the vicinity of the outlet 72 inside the cylindrical insulator 71, and free to generate negative ions at a substantially intermediate position in the axial direction of the cylindrical insulator 71.
  • An acicular electrode B75 that emits electrons is held, and an annular electrode C76 to which a higher voltage is applied is held behind the acicular electrode B75.
  • the needle electrode B75 is held at the center position of the cylindrical insulator 71 by an electrode holding insulator 77.
  • the present invention includes an auxiliary electrode for discharging the generated ions into the target space, and further recovers the induction electrode and other components by devising a voltage waveform applied to the electrode.
  • An object of the present invention is to realize an ion generator capable of suppressing the amount and improving the ion emission efficiency.
  • the repulsion electrode is disposed on the opposite side to the direction in which ions generated by the discharge means are conveyed.
  • the repelling electrode is applied to the grounding state by a voltage applying means, and a voltage having the same polarity as that of ions is applied to the repelling electrode during a non-discharge period during a period of 3/4 or more of the discharge period by the discharging means.
  • the repulsion electrode may be brought into a grounded state almost simultaneously with the discharge, and a voltage having the same polarity as the ions generated at the repulsion electrode may be applied almost simultaneously with the stop of the discharge.
  • two or more sets of discharge electrodes and induction electrodes may be provided to generate both positive and negative ions. You may comprise the air purifying apparatus provided with the said ion generator.
  • a repulsive electrode that functions as an auxiliary electrode is disposed behind the discharge electrode and the induction electrode, and the voltage waveform to be applied is devised, whereby ions are more efficiently discharged into the target space. Can do.
  • FIG. 4 is a voltage waveform diagram applied to the discharge electrode 11, the induction electrode 12, and the repulsion electrode 13 according to Example 1.
  • FIG. It is a voltage waveform figure applied to the discharge electrode 11, the induction electrode 12, and the repulsion electrode 13 which concern on a comparative example. It is a figure showing the relationship between the time difference which concerns on a comparative example, and a carbon rod electric current.
  • 6 is a voltage waveform diagram applied to the discharge electrode 11, the induction electrode 12, and the repulsion electrode 13 according to Example 2.
  • FIG. It is a block diagram of the conventional negative ion generator.
  • FIG. 1 is a configuration diagram of an ion generator according to an embodiment of the present invention.
  • the ion generator 10 includes a discharge electrode 11, an induction electrode 12 having a hole, a repulsion electrode 13 that functions as an auxiliary electrode, a voltage application device 14 that is a voltage application unit connected to each electrode, and a blower fan 15. Is provided.
  • the discharge electrode 11 is made of a needle-like conductor whose tip is sharply sharpened so that electric field concentration tends to occur.
  • the discharge electrode 11 is held on an insulating substrate or the like and is connected to the voltage application device 14 through a lead wire or a wiring pattern. Is done.
  • the induction electrode 12 is made of a conductor and has a thin, hollow, substantially circular shape, and is arranged so that the center of the circular shape and the center of the tip of the discharge electrode 11 substantially coincide. In this configuration, either a positive ion or a negative ion is generated by forming a uniform electric field around the discharge electrode 11 and generating a stable corona discharge.
  • the induction electrode 12 is also held on an insulating substrate or the like and connected to the voltage application device 14 through a lead wire or a wiring pattern.
  • the repulsive electrode 13 is made of a conductor, and is disposed at a position substantially coincident with the centers of the discharge electrode needle 11 and the induction electrode 12 behind the discharge electrode 11 and the induction electrode 12.
  • the repulsive electrode 13 is also connected to the voltage applying device 14 through a lead wire or a wiring pattern, and a voltage having the same polarity as ions generated by corona discharge between the discharge electrode 11 and the induction electrode 12 is applied. Therefore, ions can be repelled toward the opening and efficiently released.
  • the repulsive electrode 13 is made of a conductor and can have any shape such as a disk shape, a donut shape, or a polygonal shape as long as it has an effect of repelling ions.
  • a fan 15 is arranged to create a flow toward the outside of the ion generator 10, and the generated ions are transported through the ion generator 10 and released into the target space.
  • FIG. 2 is a diagram showing a measuring apparatus used for verifying the effect of the ion generating apparatus in the embodiment of FIG.
  • the discharge electrode 11, the induction electrode 12 and the repulsion electrode 13 of FIG. 1 are described, and in addition to this, as a measuring device, the carbon rod 16 for measuring the discharge current, the weak current of the carbon rod is amplified.
  • the state is described that includes a current-voltage conversion circuit 17 using an operational amplifier and a resistor and voltage measuring means 18 for measuring the voltage across the resistor.
  • the discharge electrode 11 in FIG. 2 was made of a conductive metal, and a needle-shaped one having a sufficiently sharp edge with a shaft portion having a diameter of 1 mm and a length of 5 mm was used.
  • the induction electrode 12 was made of a conductive metal, and a wire-shaped one having a diameter of 13 mm was used.
  • the repelling electrode 13 is also made of a conductive metal, and has a hollow disk shape having an inner diameter of 8 mm, an outer diameter of 20 mm, and a thickness of 0.5 mm.
  • shaft of each electrode was made to correspond and the repulsion electrode 13 was fixed to the back 5 mm position of the induction
  • FIG. The amount of ions generated is measured by the magnitude of the current flowing through the carbon rod 16 arranged 40 mm away from the tip of the discharge electrode 11.
  • FIG. 3 is a diagram showing voltage waveforms applied to the electrodes shown in FIG. 2 in order to verify the effect of the ion generator according to the present embodiment.
  • V1 represents a voltage waveform applied to the discharge electrode 11
  • V2 represents a voltage waveform applied to the induction electrode 12
  • V3 represents a voltage waveform applied to the repulsion electrode 13
  • FIG. 3A shows a case where positive ions are generated.
  • (B) shows the case where negative ions are generated.
  • T1 is a discharge period in which a potential difference is created between the discharge electrode 11 and the induction electrode 12 to cause discharge
  • T2 is a positive voltage applied to the discharge electrode 11 and the induction electrode 12
  • This is a non-discharge period in which no discharge occurs.
  • the repulsion electrode 13 maintains the ground state almost simultaneously with the discharge so as not to affect the electric field of the discharge between the discharge electrode 11 and the induction electrode 12.
  • the ground state means that the ground state is approached, and a potential may be applied as long as it does not substantially affect the amount of ions generated by discharge.
  • FIG. 3B shows the voltage applied to the discharge electrode 11, the induction electrode 12 and the repulsion electrode 13 having the opposite polarity to that shown in FIG.
  • V1 is a DC voltage of 4 kV
  • V2 and V3 are pulse voltages of 0 kV in the discharge period T1 and 4 kV in the non-discharge period T2
  • V2 and V3 are frequencies of 2 kHz
  • the duty ratio causing discharge is 5%.
  • the repulsive electrode 13 in order to more efficiently release ions into the target space using the repulsive electrode 13, the repulsive electrode 13 is brought close to the ground state in the discharge period T1, and is generated in the repellent electrode 13 in the non-discharge period T2. It turns out that it is good to apply the voltage of the same polarity to the ion to make.
  • Example 2 the carbon rod current was measured with a time difference T20 between the pulse voltage V3 applied to the repulsive electrode 13 and the pulse voltage V2 applied to the induction electrode 12 shown in the voltage waveform diagram of Example 1.
  • FIG. 4 shows a diagram of voltage waveforms applied to each electrode
  • FIG. 5 shows measurement results showing the relationship between the time difference T20 between V2 and V3 and the carbon rod current. Note that the same measuring apparatus as in Example 1 shown in FIG. 2 was used.
  • FIG. 4 shows voltage waveforms applied to the respective electrodes according to Example 2. Unlike Example 1, a time difference T20 of ⁇ 16 ⁇ s to 16 ⁇ s was provided between V2 and V3, and the amount of positive ions generated was measured. The measurement result is shown in FIG.
  • the carbon rod current increases as the time difference T20 decreases.
  • the carbon rod current increased by 80% or more compared to the carbon rod current of 108 nA measured when a DC voltage of 4 kV was applied to the repelling electrode. 6 ⁇ s corresponds to almost a quarter of the discharge period. From this, it can be seen that if the discharge period T1 and the period in which the repulsive electrode 13 is brought close to the ground state overlap in a period of approximately three quarters or more of the discharge period T1, ions can be efficiently released to some extent. . Even when negative ions are generated, the tendency of the amount of generated ions is the same.
  • Example 3 is different from Examples 1 and 2 in that a DC voltage is applied to the induction electrode 12, a pulse voltage is applied to the discharge electrode 11, and a pulse voltage is applied to the discharge electrode 11 in order to generate ions. Note that the same measuring apparatus as in Example 1 is used. As in Examples 1 and 2, the repulsive electrode 13 is grounded so as not to affect the electric field of the discharge in the discharge period T1, and in the non-discharge period T2, a voltage having the same polarity as the ions generated in T1. Applied. FIG.
  • FIG. 6 is a diagram of voltage waveforms applied to the respective electrodes according to the third embodiment, where V1 is a voltage waveform applied to the discharge electrode 11, V2 is a voltage waveform applied to the induction electrode 12, and V3 is applied to the repulsive electrode 13.
  • V1 is a voltage waveform applied to the discharge electrode 11
  • V2 is a voltage waveform applied to the induction electrode 12
  • V3 is applied to the repulsive electrode 13.
  • 6A shows a case where positive ions are generated
  • FIG. 6B shows a case where negative ions are generated.
  • the ions can be efficiently discharged into the target space by controlling the voltage applied to the repulsion electrode.
  • the ion generation apparatus 10 that generates either positive or negative ions using one set of the discharge electrode 11 and the induction electrode 12 is shown.
  • Positive ions and negative ions may be generated using a pair or more.
  • a repulsive electrode 13 to which a positive voltage is applied is disposed behind the discharge electrode 11 and the induction electrode 12 that generate positive ions
  • a negative electrode is disposed behind the discharge electrode 11 and the induction electrode 12 that generate negative ions.
  • the repulsive electrode 13 to which a voltage of 1 is applied is disposed.
  • the shapes and applied voltages of the discharge electrode 11, the induction electrode 12, and the repulsion electrode 13 used in the embodiments of the present invention are set according to the distance between the electrodes, the amount of ions to be generated, and the like.
  • the ventilation fan 15 was used as a sending means, the effect by the ventilation fan 15 is for diffusing ion to a wider range, and the structure without the ventilation fan 15 may be sufficient according to the objective.
  • Air purifiers here are air conditioners, dehumidifiers, humidifiers, air purifiers, fan heaters, etc., mainly in the interior of a house, a room in a building, a hospital room, a car cabin. It is a device that is used to adjust the air in an airplane cabin, a ship cabin, and the like.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente invention a trait à un générateur d'ions qui permet de libérer de façon efficace des ions dans un espace cible, et à un dispositif d'épuration de l'air équipé de celui-ci. Le générateur d'ions est équipé d'un moyen de décharge qui inclut une électrode de décharge et des électrodes d'induction; d'électrodes de répulsion; et d'un moyen d'application de tension. Le générateur d'ions est caractérisé en ce que : les électrodes de répulsion sont disposées sur un côté opposé à la direction dans laquelle les ions générés par le moyen de décharge sont transportés; pendant une période supérieure ou égale aux trois quarts de la période de décharge par le moyen de décharge, les électrodes de répulsion sont mises dans un état proche d'un état de mise à la masse par l'intermédiaire du moyen d'application de tension; et au cours des périodes sans décharge, une tension de même polarité que les ions est appliquée aux électrodes de répulsion.
PCT/JP2012/066486 2011-08-23 2012-06-28 Générateur d'ions et dispositif d'épuration de l'air équipé de celui-ci WO2013027485A1 (fr)

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JP2011181056A JP5118241B1 (ja) 2011-08-23 2011-08-23 イオン発生装置及びこれを備えた空気清浄装置
JP2011-181056 2011-08-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020528656A (ja) * 2017-07-27 2020-09-24 ナチュリオン ピーティーイー．リミテッド イオン発生装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5761424B2 (ja) * 2013-12-27 2015-08-12 ダイキン工業株式会社 放電装置及び空気処理装置
JP5896069B1 (ja) * 2014-09-19 2016-03-30 ダイキン工業株式会社 放電ユニット
JP2018176983A (ja) * 2017-04-12 2018-11-15 株式会社Ｓｏｋｅｎ 噴流発生装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63500059A (ja) * 1985-06-06 1988-01-07 アストラ−ベント・ア−・ベ− 空気搬送配置
JP2004031145A (ja) * 2002-06-26 2004-01-29 Hitachi Media Electoronics Co Ltd マイナスイオン発生装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63500059A (ja) * 1985-06-06 1988-01-07 アストラ−ベント・ア−・ベ− 空気搬送配置
JP2004031145A (ja) * 2002-06-26 2004-01-29 Hitachi Media Electoronics Co Ltd マイナスイオン発生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020528656A (ja) * 2017-07-27 2020-09-24 ナチュリオン ピーティーイー．リミテッド イオン発生装置
JP7153712B2 (ja) 2017-07-27 2022-10-14 ナチュリオン ピーティーイー．リミテッド イオン発生装置

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JP5118241B1 (ja) 2013-01-16

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