EP0771483B1 - Positive oder negative ionengenerator im gasmedium mit plasmaeinschluss - Google Patents

Positive oder negative ionengenerator im gasmedium mit plasmaeinschluss Download PDF

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Publication number
EP0771483B1
EP0771483B1 EP95926407A EP95926407A EP0771483B1 EP 0771483 B1 EP0771483 B1 EP 0771483B1 EP 95926407 A EP95926407 A EP 95926407A EP 95926407 A EP95926407 A EP 95926407A EP 0771483 B1 EP0771483 B1 EP 0771483B1
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EP
European Patent Office
Prior art keywords
plate
needle
sheath
generator according
generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95926407A
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English (en)
French (fr)
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EP0771483A1 (de
Inventor
Jacques Léon Georges Breton
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Individual
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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

Definitions

  • the present invention relates to electronic devices of the "negative or positive ion generator" type. These devices make it possible to maintain inside an enclosure or a local an ion density (for example of negative oxygen O 2 ions in the air) of homogeneous or localized distribution, permanent or temporary, previously determined and also high than necessary, in the absence of any production of aggressive or toxic compounds (Ozone O 3 and / or nitrogen oxides NO x among others).
  • a local an ion density for example of negative oxygen O 2 ions in the air
  • the new device according to the invention sees disappear the faults noted above, and thus turns out free from the aforementioned drawbacks.
  • Experimental control Fluday cage measurements of overall flow
  • of a realization of said new device makes it possible to verify the effective disappearance of the aforementioned faults.
  • the subject of the invention is a generator of positive or negative ions in a gaseous medium, comprising an electronic optic consisting of at least one needle or emissive point arranged in a system of support and acceleration plates, focusing and diffusion of ions comprising a first conductive plate to which the non-emissive end of the needle is fixed, a second conductive plate traversed by said needle and provided, on its face facing said first conductive plate, with an insulating plate , said first and second conductive plates being connected to a suitable high-voltage electrical source and an insulating plate arranged at the height of the emissive end of the needle and ensuring the diffusion of the electrons emitted by the needle, characterized in that the needle comprises a coaxial sheath made of a dielectric material with high resistivity, low loss and high relative permittivity, in that the part of said sheath situated on the side of the emissive end of the needle is extended by a first conical proximal section made of the same material as the she
  • the device according to the invention thus ensures the production, emission and quasi-isotropic diffusion of a intense flow of charges from one and / or the other sign, without emission of toxic compounds, under a voltage of value moderate, without unnecessary expenditure of energy.
  • Such features are absent in whole or in part from all other emissive point devices currently in use.
  • Figure 2 shows an example of an embodiment possible of the electronic optical system intended for the production and emission to the atmosphere of the ion flux emitted by "spikes".
  • a set of needles is fixed to the conductive plate (P 2 ), subjected by the above supply (Al) to a negative voltage (case of the production of negative oxygen ions in the air) close to 4.5 kV maximum.
  • the conductive field plate (P 5 ) carried by the insulating plate (P 4 ) is connected to ground (zero potential).
  • the emissive needles are sheathed with dielectric. It follows that the zero equipotential is imposed by the field plate (P 5 ), its distribution then depending on the position and the length of the needles as well as the characteristics of the dielectric sheath and its distal cone (C d ) . In fact, because of the high relative permittivity of the sheath and of its distal cone, the "drawdown" of the zero equipotential is practically done on the external surface of said sheath and ensures the presence of an electric field of maximum value. very high at the free end of the needle, a prerequisite for the most intense primary electronic emission possible.
  • the plate (P 6 ) constituting the housing of the device has a low conductivity but not zero. This characteristic greatly reduces the capture of the charges emitted, while ensuring their evacuation to the common ground. The optimum dynamic balance between capture and evacuation then results from the choice of the value of said conductivity and the characteristics of the adaptive structure.
  • the surface charge acquired by the distal cone (C d ) exerts a strongly repulsive effect on the local space charge, ensuring the emission towards the outside of the maximum ion flux of which only a very small part is captured by the case.
  • the measurement of said "capture current" on the aforementioned experimental model confirms the accuracy of the approach and the effectiveness of the device.
  • Such an exemplary embodiment in no way exhausts the invention, of which the various constituent elements can be made, as required, in several parts of suitable dimensions and materials, assembled in the final device, or made in whole or in part in the form of molded parts with characteristics and functions of the aforementioned parts, in the functional form of a "unitary electronic optics module".
  • the assembly of a determined number of such "unit modules" by simple juxtaposed or by an overall molding allows to have of a "composite electronic sheet optic" adapted to needs previously defined.
  • Another example of application concerns the places subject strong influences of existing static loads or created by certain devices: this is among others the case computer rooms in general, places of handling or processing of photographic films as well only sensitive electronic components.
  • the injection of a sufficient permanent flow of negative charges allows almost completely eliminate the nuisances observed, without prejudice for those present and the equipment sensitive.
  • Negatively charged air provides better stability and more complete aerosol combustion of hydrocarbon, and therefore a lower emission of pollutants in exhaust gases.

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  • Plasma Technology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Electron Tubes For Measurement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Elimination Of Static Electricity (AREA)
  • Electrostatic Separation (AREA)

Claims (12)

  1. Generator für positive oder negative lonen in einer gasförmigen Umgebung, umfassend eine Elektronenoptik (OE), welche aus mindestens einer in einem System von Träger- und Beschleunigungsplatten angeordneten Emissionsnadel (Ag) besteht, wobei zur Fokussierung und Streuung von lonen eine erste leitende Platte (P2), auf welcher das nicht-emittierende Ende der Nadel angebracht ist, und eine von der Nadel durchsetzte zweite leitende Platte (P5), die auf der der ersten leitenden Platte (P2) zugewandten Seite mit einer isolierenden Platte (P4) versehen, ist vorgesehen sind, wobei die erste und zweite leitende Platte durch eine geeignete Hochspannungsquelle (Al) verbunden sind und in Höhe des emittierenden Endes der Nadel eine die Streuung von durch die Nadel emittierten Elektronen sicherstellende isolierende Platte angebracht ist,
       dadurch gekennzeichnet, daß die Nadel (Ag) eine koaxiale Hülle (Gn) aus einem dielektrischen Material mit hohem spezifischen Widerstand, niedrigem Verlust und erhöhter relativer Dielektrizitätskonstante umfaßt, daß der an der Seite des emittierenden Endes der Nadel (Ag) befindliche Abschnitt der Hülle (Gn) durch einen konischen, aus dem gleichen Material wie die Hülle bestehenden und das emittierende Ende unbedeckt lassenden ersten Proximalabschnitt verlängert ist, daß der Proximalabschnitt (Cp) durch eine aus dem gleichen Material wie die Hülle bestehende, konische und offnene Distalstruktur (Cd) verlängert ist, daß die konische Distalstruktur (Cd) durch eine Platte (Pi), die aus dem gleichem Material wie die Hülle besteht und zusammen mit der konischen Fernstruktur (Cd) die Elektronenstreuplatte bildet, verlängert ist, und daß die Verlängerungsplatte (Pi) unter einer Platte (P6) mit sehr geringer elektrischer Leiffähigkeit angebracht und geeignet ist, um einen Teil des Außengehäuses des Generators zu bilden.
  2. Generator nach Anspruch 1, dadurch gekennzeichnet, daß er eine Platte (P1) umfaßt, die unter der ersten leitenden Platte (P2) an den Enden eines Schutzes gegen einen möglichen, von der ersten leitenden Platte stammenden Überschlag angebracht ist.
  3. Generator nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die erste leitende Platte (P2) auf der der Emissionsnadel zugewandten Seite eine isolierende Platte (P3) umfaßt.
  4. Generator nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die zweite leitende Platte (P5) und eine möglicherweise vorhandene zugehörige isolierende Platte (P4) mit Öffnungen (Oc) versehen sind, die einen dem Durchmesser der Hülle der Emissionsnadel (Ag) entsprechenden Durchmesser haben, so daß das Hindurchführen der Hülle, auf welche die Platten (P4, P5) eingereiht sind, mit geringer Reibung möglich ist.
  5. Generator nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die zur Bildung eines Teils des Außengehäuses geeignete Platte (P6) mit sehr geringer elektrischer Leitfähigkeit mit einer angefasten Öffnung (Ouv, Ch), deren kegelstumpfförmige Wandung in Verlängerung der konischen Oberfläche der konischen Distalstruktur (Cd) angeordnet ist, versehen ist.
  6. Generator nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die zweite leitende Platte (P5) auf Nullpotential der Hauptmasse des Geräts gehalten wird.
  7. Generator nach Anspruch 6, dadurch gekennzeichnet, daß die zur Bildung eines Teils des Außengehäuses geeignete Platte (P6) mit sehr geringer elektrischer Leitfähigkeit durch einen entsprechenden Nebenschlußwiderstand (RF) mit der zweiten leitenden Platte (P5) elektrisch verbunden ist.
  8. Generator nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das Material der Hülle (Gn) einen spezifischen Widerstand größer oder gleich 1015 Ω m aufweist.
  9. Generator nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Nadel (Ag) auf dem konischen Proximalabschnitt (Cp) auf einer Länge in der Größenordnung von 2mm unbedeckt bleibt.
  10. Generator nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die konische Distalstruktur (Cd) einen Öffnungswinkel in der Größenordnung von 45° und eine Tiefe in der Größenordnung von 8mm besitzt.
  11. Generator nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Platte (P6) mit sehr geringer elektrischer Leitfähigkeit aus einem Material mit einem spezifischen Widerstand von 107 ohm·Quadrat gebilded wird.
  12. Generator nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Hochspannungsquelle eine Spannung in der Größenordnung von 4kV liefert.
EP95926407A 1994-07-20 1995-07-20 Positive oder negative ionengenerator im gasmedium mit plasmaeinschluss Expired - Lifetime EP0771483B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9409247A FR2722923A1 (fr) 1994-07-20 1994-07-20 Generateur d'ions negatifs ou positifs en milieu gazeux, a surconfinement de plasma
FR9409247 1994-07-20
PCT/FR1995/000978 WO1996002966A1 (fr) 1994-07-20 1995-07-20 Generateur d'ions positifs ou negatifs en milieu gazeux a surconfinement de plasma

Publications (2)

Publication Number Publication Date
EP0771483A1 EP0771483A1 (de) 1997-05-07
EP0771483B1 true EP0771483B1 (de) 1998-12-16

Family

ID=9465759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95926407A Expired - Lifetime EP0771483B1 (de) 1994-07-20 1995-07-20 Positive oder negative ionengenerator im gasmedium mit plasmaeinschluss

Country Status (12)

Country Link
US (1) US5789749A (de)
EP (1) EP0771483B1 (de)
JP (1) JPH10503048A (de)
AT (1) ATE174729T1 (de)
AU (1) AU3081195A (de)
BR (1) BR9508416A (de)
CA (1) CA2195343A1 (de)
DE (1) DE69506712T2 (de)
ES (1) ES2128068T3 (de)
FR (1) FR2722923A1 (de)
GR (1) GR3029664T3 (de)
WO (1) WO1996002966A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745316C2 (de) * 1997-10-14 2000-11-16 Thomas Sebald Vorrichtung zur Erzeugung von Hochspannung für die Ionisation von Gasen
FR2794295B1 (fr) * 1999-05-31 2001-09-07 Joel Mercier Dispositif generateur d'ions
JP4903942B2 (ja) * 2001-03-15 2012-03-28 株式会社キーエンス イオン発生装置
US20050031503A1 (en) * 2003-08-05 2005-02-10 Fox Michael T. Air ionization control
DE112008000228T5 (de) * 2007-11-30 2010-03-25 Murata Mfg. Co., Ltd., Nagaokakyo-shi Ionengenerator
FR3044834A1 (fr) * 2015-12-02 2017-06-09 Pierre Guitton Dispositif de generation d'ions
CN107154583B (zh) * 2017-06-06 2018-10-30 臻烯智创科技（深圳）有限公司 负离子发射电极及其制备方法和应用
WO2020144412A1 (fr) 2019-01-11 2020-07-16 Teqoya Dispositif de génération de particules ionisées amélioré
GB2596450B (en) 2019-02-18 2022-12-07 Omayur Tech Private Limited Device for impacting atmosphere by electrons
DE102022103550B4 (de) * 2022-02-15 2024-01-04 Woco Gmbh & Co. Kg Ansteuerschaltung für einen Elektroabscheider

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711710A (en) * 1969-11-07 1973-01-16 Australia Res Lab Method of and means for controlling corona emission
US4227235A (en) * 1978-04-03 1980-10-07 Peter Bishop Static neutralizer
DE3148380C2 (de) * 1981-12-07 1986-09-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Ionengenerator zur Erzeugung einer Luftströmung
FR2687858B1 (fr) * 1992-01-17 1996-11-08 Breton Dominique Generateur d'ions negatifs a haute tension controlee, sans emission d'ozone, pour milieux habites critiques.

Also Published As

Publication number Publication date
GR3029664T3 (en) 1999-06-30
FR2722923A1 (fr) 1996-01-26
EP0771483A1 (de) 1997-05-07
DE69506712T2 (de) 1999-07-22
DE69506712D1 (de) 1999-01-28
US5789749A (en) 1998-08-04
ES2128068T3 (es) 1999-05-01
BR9508416A (pt) 1997-11-18
JPH10503048A (ja) 1998-03-17
AU3081195A (en) 1996-02-16
FR2722923B1 (de) 1997-02-07
CA2195343A1 (fr) 1996-02-01
ATE174729T1 (de) 1999-01-15
WO1996002966A1 (fr) 1996-02-01

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