WO2013119283A1 - Ioniseur multi-impulsion linéaire - Google Patents

Ioniseur multi-impulsion linéaire Download PDF

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Publication number
WO2013119283A1
WO2013119283A1 PCT/US2012/064045 US2012064045W WO2013119283A1 WO 2013119283 A1 WO2013119283 A1 WO 2013119283A1 US 2012064045 W US2012064045 W US 2012064045W WO 2013119283 A1 WO2013119283 A1 WO 2013119283A1
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WO
WIPO (PCT)
Prior art keywords
pulses
emitter
positive
ionizing
negative
Prior art date
Application number
PCT/US2012/064045
Other languages
English (en)
Inventor
Leslie Partridge
Peter Gefter
Edward Oldynski
Original Assignee
Illinois Tool Works Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US13/367,369 external-priority patent/US8773837B2/en
Application filed by Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Priority to KR1020147024139A priority Critical patent/KR101968795B1/ko
Priority to EP12805532.4A priority patent/EP2812964B1/fr
Priority to JP2014556533A priority patent/JP6567828B2/ja
Publication of WO2013119283A1 publication Critical patent/WO2013119283A1/fr

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Classifications

    • 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

  • This invention relates to AC corona ionizers for both positive and negative static charges neutralization. More particularly, this
  • AC corona ionizers are commonly used for static charge neutralization of charged objects. It is known in the art that AC corona ionizers include the features of, for example, a relatively simple design, high reliability, and low cost. These features are particularly true for AC ionizers using a single ion emitter configured as a line thin wire(s) or line of pointed electrodes. However, these ionizers are prone to a relatively high ozone emission and higher rate of electrode contamination by collecting debris from the surrounding air. Electrode contamination decreases the ionization efficiency and may affect ion balance.
  • an ionization method includes providing a pulse duration that is relatively short such that an applied power is enough (or sufficient) for a corona discharge to generate positive and negative ions but not enough (not sufficient) to generate ozone and nitrogen oxides, erode emitter, and/or attract particles from ambient air
  • an ionization method may optionally include providing a simultaneous application of voltage to a linear wire or group of linear emitters in order to reduce the usual ion density variation effect between points, and allow an even ion balance distribution along the length of the ion emitter structure.
  • this optional method may be omitted .
  • the positive pulse train including a first plurality of ionizing positive voltage pulses during a positive phase and a second plurality of ionizing
  • the negative pulse train including a first plurality of ionizing negative voltage pulses during the ionization frequency phases a second plurality of ionizing negative voltage pulses during a negative phase which occur after the ionization frequency phase; wherein each of the first plurality of ionizing positive voltage pulses has a greater magnitude than a magnitude of each of the second plurality of ionizing positive voltage pulses; and wherein each of the first plurality of ionizing negative voltage waveform has a greater magnitude than a magnitude of each of the second plurality of ionizing negative voltage pulses.
  • Figure 1 illustrates voltage waveforms of positive and negative ionizing pulses and pulse trains, in
  • Figure 2 illustrates a scope screen shot with a voltage waveform of exemplary train positive and negative ionizing pulses in the real time domain, in accordance with an embodiment of the present invention.
  • analog/logic base embodiment of present invention for an ionizing bar with one wire type emitter electrode.
  • Figure 3b shows waveform diagrams into various inputs of various components in Figure 3a.
  • Figures 4a and 4b are block diagram of a
  • microprocessor based embodiment of present invention microprocessor based embodiment of present invention.
  • Figures 5a, 5b and 5c shows multi-Pulses in three differed modes to optimize high voltage waveform (pulse trains) for different charge neutralization conditions, in accordance with an embodiment of the present invention.
  • Figure 5d is a flow diagram of a method performed by a software executed by the controller of Figures 4a and 4b, in accordance with an embodiment of the present invention .
  • Figures 5f, 5g, and 5h shows multi-pulses in three differed modes based on settings different from Figures 5a, 5b, and 5c, in accordance with an embodiment of the present invention.
  • Figure 6 [ [a and 6b] ] shows schematic diagrams of another embodiment of present invention as a dual phase ionizing bar with two (wire or point type) emitter
  • Figure 7 shows variants of self balancing
  • Figure 8 shows general view of linear bar with wire emitter and air assist ion delivery system, in accordance with an embodiment of the present invention.
  • An embodiment of the present invention can apply to many types of air-gas ionizers configured as ionizing bars, blowers, or in-line ionization devices.
  • Pulse mode ionizers are known in the art.
  • patent application publications JP2008124035, US 20060151465, and US 20090116828 describe AC ionizing bars.
  • U.S. Patent 8,009,405 discloses a design of ionizing blowers with high voltage power supplies generating periodically burst of positive and negative pulses.
  • These power supplies include plus and minus DC high voltage sources and a summing block connected to an ion emitting structure.
  • Low frequency pulses (in the range of approximately 0.1 Hz to 100 Hz) are generated by independently switching on and off each of high voltage source.
  • these AC pulse ionization systems are complicated, have low efficiency, and are prone to accumulate particles on the ion emitting structures.
  • a train i.e., pulse group
  • pulse group a train of positive and negative pulses is applied to a linear emitter or group of emitters.
  • the short duration pulses (in the asymmetric waveform) create a high voltage gradient, which reduces ion recombination at the emitter, which in turn increases the emitter ionization efficiency, thus allowing the use of a relatively or extremely low power consumption method to generate high concentration plus and minus ions.
  • positive and negative ion clouds are periodically generated by trains of pulses having variable pulse number, for each pulse duration, train pulse duration and voltage amplitude.
  • the number of voltage waveforms can be generated by a small high voltage transformer with primary winding controlled by low voltage pulse generator and secondary winding forming a resonance circuit including an ion emitter and reference electrode of the bar.
  • Figure 1 illustrates voltage waveforms of positive and negative ionizing pulses and pulse trains, in
  • Low voltage pulses 105a and 105b (for controlling an input of a high voltage transformer) are shown in top part of Figure 1.
  • Each ionizing pulse for example, a positive pulse, may include a sequence of three different voltage wave components.
  • the output pulse starts with negative voltage wave having amplitude lower than corona discharge threshold (see waveform 110 in the bottom part of Figure 1) .
  • the duration of this period is in the range of few micro-seconds or nano-seconds .
  • the positive pulse train 105a includes the
  • a plurality of ionizing positive voltage pulses 106 having a period of Tupulse_rep and a pulse width of Tp during a time period 115 (positive phase 115)
  • a plurality of ionizing positive voltage pulses 107 having a period of Tupulse_rep and a pulse width of To (where To ⁇ Tp) during a time period 120 (ionization frequency phase 120) which occurs after the positive phase 115, and a zero value during a time period 125
  • the negative pulse train 105b includes the
  • a plurality of ionizing negative voltage pulses 108 having a period of Tupulse_rep and a pulse width of To (where To ⁇ Tp) during the ionization frequency phase 120 and were the pulses 107 and 108 are offset from each other and are not generated concurrently, a plurality of ionizing negative voltage pulses 109 having a period of Tupulse_rep and a pulse width of Tn during the time period 125 (negative phase 125), where Tp and Tn may or may not be equal in time magnitude.
  • These ionizing positive and negative voltage pulses alternately create voltage gradients across the emitter and a reference electrode of the ionizer and generate by corona discharge an ion cloud that include positive and negative ions.
  • the positive and negative ionizing voltage pulses 107 and 108 during the ionization frequency phase 120 results in an effective emitter signal 110 having small magnitude alternating pulses 130.
  • the ion emitter includes a high positive voltage wave with amplitude higher than positive corona threshold for a given ion emitting structure.
  • the ion emitter generates positive ions in a gap between the ion emitter and non-ionizing (or reference) electrode.
  • This gap between the ion emitter and non-ionizing electrode is shown, for example, in Figure 6 of the above-referenced parent application U.S. serial no. 13/210,267.
  • the positive ion cloud is electro-statically repelled from the ion emitter and moves (or is most likely blown) to the reference electrode.
  • a negative voltage with amplitude significantly lower than that required for a corona discharge. This voltage creates electrostatic field which slows down movement of positive ions and decreases ion losses to the reference electrode.
  • the amplitude of the negative voltages may be adjusted by damping feature in the HVPS (High Voltage Power Supply) circuitry .
  • a positive ionizing pulse is followed by a high amplitude negative pulse (also shown in Figure 1) which produces negative ion cloud during short period of time in the same manner as previously discussed.
  • a repetition rate of ionizing pulses may be in the range of one to several thousand pulses per second.
  • the effective emitter signal 110 includes the ionization pulses 142 and 144, where the pulses 142 and 144 may be followed by smaller negative and positive oscillations 146.
  • the negative and positive oscillations 146 are due to circuit resonance of a power supply used to generate the signal 110 and are not intended to limit the present invention in any way.
  • the oscillations 146 may be substantially reduced or completely eliminated by, for example, used of a damping circuit as disclosed in, for example, to U.S. Application No. 13/023,387.
  • the non-ionizing pulses 148 and 150 has a polarity (negative) that is opposite of the polarity (positive) of the ionizing pulses 142 and 144.
  • Figure 1 also shows simultaneously (in the middle time period 120 between time periods 115 and 125) a group of positive and negative ionizing pulses 130.
  • the upper dashed line 135 shows positive corona threshold voltage, for example, usually approximately in the 4.0 kV to 5.0 kV range, and the lower dashed line 140 shows negative corona threshold voltage, for example, approximately in the 3.75 kV 4.50 kV range. Pulses exceeding negative corona threshold voltage generate negative ions and pulses exceeding positive corona threshold voltage generate positive ions.
  • a solution for static charge neutralization that uses few, short, higher voltage pulses 151, 152, 153, 154, and 155 in the microsecond range has been discovered to provide sufficient ionization with a low generation of ozone and reduced collection of contaminates on the emitter surfaces.
  • a pulse train is disposed to provide alternating positive and negative voltage waveforms with each pulse including a first non-ionizing voltage level, a second ionizing voltage level, a third non-ionizing voltage level and insignificant further oscillations due to circuit resonance.
  • An analog or logic type switching circuit (see Figure 3) provides for a series of
  • flyback generation of high voltage (generated by a flyback-type generator) in a Ferrite core transformer provides a simple, efficient and inexpensive ionizer high voltage power supply which can use a very small transformer (e.g., about 1" x 1" x 1") with
  • the number of pulses of one polarity can be adjusted for the best object neutralization discharge time depending on air flow and distance to a charged target.
  • the concentration of alternating polarities ions is sufficient for ionizing bars for neutralizing moving targets at distances up to approximate 1000 mm or more.
  • positive pulse train 30 is disposed to include an
  • the negative pulse train 32 is disposed to include an ionizing negative voltage waveform that has a maximum negative voltage amplitude that exceeds the voltage threshold for creating negative ions by corona discharge.
  • these respective positive and ionizing negative voltage waveforms alternatively create voltage gradients across a space between the emitter and
  • Pulses repetition rate can be adjusted depending upon required ionization power level and velocity of the moving target.
  • This screen shot demonstrates that an effective ratio of high voltage power "On” vs. power “Off” can be about 0.0015 or smaller. That is why according an ionization method disclosed in an embodiment of this invention, the corona discharge typically exists for only a tiny portion of time (less than about 0.1%) necessary for ion generation but less than required for ozone emissions as well as particles attraction to the ion emitters.
  • Experiments with one wire type ionization system (or ionization cell) showed that the voltage wave form with micro ionizing pulses provides approximately 3 to 5 times reduction of ozone emission at approximately the equal charge neutralization efficiency.
  • an ionizer similar to described in US application publication 2008/0232021, powered by AC high frequency supply generates ozone concentration of approximately 50 parts-per-billion (ppb) or higher, compared with approximately 10 ppb to 15 ppb for same ionizer in accordance with an embodiment of the present invention.
  • Figure 3a shows schematic diagram of one
  • Figure 3b shows waveform diagrams into various inputs of various components in Figure 3a.
  • a gas source 310 is disposed to provide a flow of gas and is electrically coupled to a voltage source V+ .
  • the pulse train 105 (formed by positive pulse train 105a and negative pulse train 105b as shown in Figure 1) is received by the emitter 305.
  • the power source 306 may be part of the
  • a timer chip (U3) 315 provides short pulses for a pulse drive circuit 317 (or power supply 317) formed by a Dual Delay logic chip (Ul) 320, Adder logic chip (U2) 325, transistors (Ql) 330 and (Q2) 335, and switching circuit 340.
  • the transistors 330 and 335 may be, for example, MOSFETs. However, the use of MOSFETs (e.g., n-channel MOSFETs or other MOSFET-type transistors) is not intended to limit embodiments of the invention in any way.
  • the timing of high voltage pulses from the high voltage output transformer 345 depends first upon the clock signal generated by the trapezoid oscillator (Ul) 320. Its oscillating frequency determines the
  • Frequency of operation alternating switch from positive pulse generation to negative pulse generation.
  • the frequency is determined by the fixed capacitor (CI) 346 and adjustable resistor (Rl) 347.
  • a frequency range of approximately 0.2 to 60 Hertz is commonly used, with a low frequency used for targets at a distance and a higher frequency used for targets at close distance.
  • the main activating pulse is generated by timer device (U3) 315.
  • Feedback (signal 351) from the output pin 3 (of timer device 315) is fed back to its trigger pin 2 and threshold pin 6.
  • the pulse width is controlled by the fixed capacitor (C2) 350 and adjustable resistor (R3) 352.
  • the pulse width is generally adjusted to approximately 2 microseconds to 24 microseconds, depending on the design of the flyback output driver 317.
  • the repetition rate of the pulses is determined by the fixed capacitor (C2) 350 and variable resistor (R4) 354.
  • the repetition rate is equal to the inverse of the pulse period. This pulse repetition rate can range from approximately 20 Hertz to 1000 Hertz and thus determines the power output of the high voltage generator and is typically approximately 250 Hertz.
  • the AND gate (U4) 340 mixes the flip flop signal and the microsecond wide pulses from the chip (U3) 315 and thereby applies activation pulses to the gates of driver transistors (Ql) 330 and (Q2) 335, alternately.
  • One output phase from the pin 7 (of comparator 356 of the chip (Ul) 320) is used to stop the oscillation in chip (U3) 315, thus interrupting the output pulses from Pin 3 of chip (U3) 315.
  • This interruption can be used to provide an Off-time between the positive and negative ionizations. This interruption is sometimes used to decrease ion cloud recombination at large target distance, or simply to reduce the power output.
  • the Off-time or Dead-time is adjusted by the bias applied to pins 10 and 13 (of comparators 358 and 359, respectively, in chip (Ul) 320) .
  • a formation of a micro pulse is achieved by the following operation.
  • a short positive pulse (in the micro second range) to the gate of MOSFET (Q2) 335 causes current to flow in high voltage
  • the pulse voltage amplitude for both positive and negative polarities is determined by the following parameters :
  • the primary damping circuit 363 which is formed by the damping circuit resistor 365 (e.g., 2 Ohms in resistance), inductor 367 (e.g., 22 uH in inductance), and shunt resistor (Rp) 368 across the primary coil 360;
  • the damping circuit resistor 365 e.g., 2 Ohms in resistance
  • inductor 367 e.g., 22 uH in inductance
  • Rp shunt resistor
  • transistors 330 and 335 e.g., MOSFETs (Ql) 330 and (Q2) 335 ) ;
  • transformer (Tl) 345 have a wave shape set by the
  • the third part 125 ( Figure 1) of the wave-form 110 is reduced by shunt resistor (Rs) 365. Selected or careful adjustment of these components will result in maximum ionization efficiency beyond the requirement of a high peak level of the second part 120 ( Figure 1) of the wave-form 110.
  • the voltage rise the rate is about 270 V/ps and the fall rate is about 1800 V/ps.
  • the slew rate may go up to about 35 (+/- 8) kV/ps.
  • Asymmetric positive and negative pulses may be
  • pulse repetition rate may be adjusted depending upon the charge density and speed of the neutralization target.
  • signal transmissions e.g., current signals or voltage signals
  • signal transmissions e.g., current signals or voltage signals
  • the pulse heights can be adjusted by changing the pulse duration which is set in Figure 3 by the resistor (R3) 352 and capacitor (C2) 350 associated with the device (U3) 315.
  • Figures 4a and 4b are block diagram of a microprocessor based embodiment of present invention.
  • the pulse drive circuit includes a microcontroller 400 (or other processor or controller 400) for controlling the switching of the transistors 330.
  • the microcontroller 400 under software control,
  • the pulses are applied to a set of pulse drivers 405 ( Figure 4b) which amplify the pulses in a suitable magnitude to drive the switching transistors 330 and 335 ( Figure 3a) which can be, for example, high power MOSFETS. As discussed above, these MOSFETS then drive the high voltage pulse transformer 345.
  • the microcontroller 400 can also receive signals 410 and 415 from a spark detector 410 and a broken wire detector 425, respectively.
  • the pulse duration may be short such that applied power is enough for corona discharge to generate positive and negative ions but not enough to generate ozone and nitrogen oxides, erode an emitter and attract particles from ambient air.
  • the ionizer may be any of the embodiments shown in Figures 3a and 4a and/or other figures/drawings herein.
  • Figures 5a, 5b and 5c shows multi-Pulses in three differed modes to optimize high voltage waveform (pulse trains) for different charge neutralization conditions and Figure 5d shows a method performed by a software executed by the microcontroller 400, in accordance with an embodiment of the present invention.
  • the modes A, B, and A+B depends on the charge neutralization requirements such as, for example, the discharge time for positive and negative charges, acceptable voltage swing (electrical field effect), and distance to the target.
  • microcontroller 400 executes software that can provide the three (3) modes of ionization pulse: Mode A, Mode B and Mode A+B as required by the application implementing an embodiment of the invention.
  • Mode A As shown in Figure 5a, Mode A is defined by a repeating series of interlacing positive and
  • Each positive pulse 505 (exceeding the positive corona threshold 506a) is followed by a negative pulse 510 (exceeding in the negative corona threshold 506b) , and each negative pulse 510 then followed by a positive pulse 505.
  • the positive pulse train 515a and negative pulse train 515b are shown with the alternative positive and negative voltage pulses. This mode is typically used at very close target distance (e.g., about 200 mm or closer) where ionization fields voltage needs to be small.
  • the pulse amplitude 529, micropulse period 525, and pulse widths 530 and 535 of the positive micropulse 505 and negative micropulse 510, respectively, are adjustable, by the software executed by the
  • the positive micropulse amplitude and positive micropulse duration is adjusted by the timer/counter with Load Pulse MP_P value in block 563 ( Figure 5d) .
  • the negative micropulse amplitude and negative micropulse duration is adjusted by the Load Pulse MP_N in block 566 ( Figure 5d) .
  • the period for the positive micropulse and negative micropulse is adjusted by the Load Reprate timer/counter with the reprate value in block 551 ( Figure 5d) .
  • Mode B As shown in Figure 5b, Mode B is defined by a repeating series 540 of positive pulses 541 followed by a repeating series 542 of negative pulses 543 followed by a repeating series 540 of positive pulses 541, and so on as shown in the drawings. In between the positive series 540 and negative series 542 of pulses, a small delay 544, Off Time, can be added, to reduce ion
  • the OffTime is a time where no ionization pulse is created. This mode is typically used at very far (500mm and above) target distances.
  • the positive ionization pulse width is adjusted by the load pulse timer/counter with Tpmax value in block 556 ( Figure 5d) .
  • the positive ionization pulse period is adjusted by the load reprate timer/counter with reprate value in block 551 ( Figure 5d) .
  • the negative ionization pulse width is adjusted by the load pulse timer/counter with Tnmax value in block 560 ( Figure 5d) .
  • the negative ionization pulse period is adjusted by the load reprate timer/counter with reprate value in block 551 ( Figure 5d) .
  • Mode A+B is a combination of Mode A and Mode B where Mode A occurs in the OffTime region (time) 550 and Mode B occurs in the OnTime regions (time) 551 and 552. This mode is
  • Figures 5f, 5g, and 5h also shows multi-pulses in three differed modes based on settings different from Figures 5a, 5b, and 5c, in accordance with an embodiment of the present invention.
  • the user can change the ion balance by: (1) changing the pulse width of the positive or negative or both, and control the amount of ionization in OnTime region (Tpmax and Tnmax)
  • Treprate independently of the OffTime region (MP_P, MP_N) ; and (2) changing the ratio of time between the Positive OnTime region versus the Negative OnTime region.
  • the time between pulses (Treprate) is the same in all regions and is adjustable to control the amount of ionization power.
  • a high power is where Treprate is small, and creates more often ionization pulses, resulting in more ionization.
  • a larger Treprate creates less often ionization pulses, resulting in less ionization.
  • an embodiment of the present invention provides a method of ionization and associated schematic (apparatus) .
  • This embodiment generates very short bipolar micro pulses and creates efficient bipolar air (or other gases) ionization with regular emitters at normal atmospheric pressure.
  • a high voltage pulse generator may power different ionizing cells
  • Figure 8 shows general view of linear bar with wire emitter and air assist ion delivery system, in accordance with an
  • FIG. 6 shows schematic diagrams of another embodiment of present invention as a dual phase ionizing bar with two (wire or point type) emitter electrodes El and E2.
  • this dual phase ionizer with two emitters the
  • emitters both may be configured as a row of sharp pointed electrodes, wires or blades, or row of nozzles with pointed emitters. Additional details of elements in the linear bar are disclosed in the above-referenced U.S. Provisional Application No. 61/584,173.
  • Patent No. 5,055,963 is hereby incorporated herein by reference .
  • the ion emitters connected to the transformers Tl and T2 have exactly opposite polarity voltage ionizing pulses.
  • the voltage waveform 602 for this dual phase ionization system is shown in [ [ Figure 6a] ] and
  • This embodiment in Figure 6 has at least a couple of advantages compare to single phase ionization system. Often objects of charge neutralization are sensitive to electrical field and require to have an ionizer with field canceling effect. Dual phase ionization system simultaneously generates opposite polarity voltages and thereby considerably reducing the radiated electrical field .
  • This feature is important also in cases when ionizing bar should be positioned in close proximity to the charged object.
  • ionizing bar and object duration of, for example, positive pulse train (pulse duration, amplitude or pulse frequency and so on)
  • the distance may be longer than for negative pulse train in one cycle for one emitter; and to be opposite polarity situation in the next one cycle. That will crate ion cloud "pushing" effect and accelerate their movement to the target.
  • Dual phase ionization system has another advantage that it not has bulky reference electrode at all and avoids ion losses on these electrodes.
  • the opposite phase voltage source significantly (almost twice) may decrease the required voltage amplitude at each emitter for producing corona discharge. Therefore, these transformers may be
  • a lower turns ratio may be used since the emitters, being close to each other, tend to increase the electric field between the emitter pair.
  • Figure 6 shows also embodiment of a dual phase line ionizer where each emitter is capacitive connected (C3 and C4) to output of transformer Tl and T2.
  • the secondary coils of both transformers Tl and T2 are grounded. This is another variant of capacitive coupled self balanced ionization system.
  • Capacitors may provide a shorter transition time for balancing. Also, small capacitors in series with each emitter may help to fine tune the phase shift between them and limit current in case of emitter
  • the ionizer may have self balance system in several different variants (shown in Figure 7) : a wire emitter (shown by dash line 705) may be capacitively coupled to HVPS output and grounded to a reference electrode, and the floated transformer secondary, both emitter and reference capacitively
  • FIG. 8 A general view of linear ionizing bar with wire type emitter shown in Figure 8.
  • the wire electrode 801 is attached to the bar's chassis (or cartridge) by spring 802.
  • the spring 802 provides wire tension and is

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Abstract

Un mode de réalisation de l'invention concerne un appareil et un procédé pour générer des ions à l'intérieur d'un espace séparant un émetteur et une électrode de référence, comprenant les étapes consistant à : fournir au moins un train d'impulsions à l'émetteur, la paire de trains d'impulsions comportant un train d'impulsions positives et un train d'impulsions négatives qui alternent dans la séquence, le train d'impulsions positives comprenant une première pluralité d'impulsions de tension ionisante positive et une deuxième pluralité d'impulsions de tension ionisante positive pendant une phase de fréquence d'ionisation qui se produisent après la phase positive, et le train d'impulsions négatives comprenant une première pluralité d'impulsions de tension négative ionisante pendant les phases de fréquence d'ionisation une seconde pluralité d'impulsions de tension négative ionisante pendant une phase négative qui se produisent après la phase de fréquence d'ionisation ; dans laquelle chacune de la première pluralité d'impulsions de tension ionisante positive a une amplitude plus grande que l'amplitude de chacune de la deuxième pluralité d'impulsions de tension ionisante positive ; et dans laquelle chacune de la première pluralité de forme d'onde de tension négative ionisante a une amplitude plus grande que l'amplitude de chacune de la deuxième pluralité d'impulsions de tension négative ionisante.
PCT/US2012/064045 2012-02-06 2012-11-08 Ioniseur multi-impulsion linéaire WO2013119283A1 (fr)

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KR1020147024139A KR101968795B1 (ko) 2012-02-06 2012-11-08 다중 펄스 선형 이오나이저
EP12805532.4A EP2812964B1 (fr) 2012-02-06 2012-11-08 Ionisateur linaire a impulsions multiples
JP2014556533A JP6567828B2 (ja) 2012-02-06 2012-11-08 マルチパルス線形イオナイザー

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/367,369 US8773837B2 (en) 2007-03-17 2012-02-06 Multi pulse linear ionizer
US13/367,369 2012-02-06

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JP2015115159A (ja) * 2013-12-11 2015-06-22 シャープ株式会社 イオン発生装置および電気機器
JP2015170425A (ja) * 2014-03-05 2015-09-28 シシド静電気株式会社 高圧電源及びイオン生成装置
JP2017509124A (ja) * 2014-03-19 2017-03-30 イリノイ トゥール ワークス インコーポレイティド 自動的に均衡するマイクロパルス式イオン化送風機
US9700643B2 (en) 2014-05-16 2017-07-11 Michael E. Robert Sanitizer with an ion generator
US9808547B2 (en) 2013-04-18 2017-11-07 Dm Tec, Llc Sanitizer
US9950086B2 (en) 2014-03-12 2018-04-24 Dm Tec, Llc Fixture sanitizer
US10124083B2 (en) 2015-06-18 2018-11-13 Dm Tec, Llc Sanitizer with an ion generator and ion electrode assembly
WO2020076641A1 (fr) * 2018-10-08 2020-04-16 Illinois Tool Works Inc. Procédé et appareil pour soufflante d'air ionisé

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JP6567828B2 (ja) * 2012-02-06 2019-08-28 イリノイ トゥール ワークス インコーポレイティド マルチパルス線形イオナイザー
US9084334B1 (en) * 2014-11-10 2015-07-14 Illinois Tool Works Inc. Balanced barrier discharge neutralization in variable pressure environments
KR102601455B1 (ko) * 2017-08-25 2023-11-13 이글 하버 테크놀로지스, 인코포레이티드 나노초 펄스를 이용한 임의의 파형 발생

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JP2018026357A (ja) 2018-02-15
TW201338321A (zh) 2013-09-16
KR101968795B1 (ko) 2019-04-12
EP2812964A1 (fr) 2014-12-17
TWI575830B (zh) 2017-03-21
KR20140123084A (ko) 2014-10-21
EP2812964B1 (fr) 2020-09-02
JP2015511378A (ja) 2015-04-16

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