CN102668291A - Electrostatic atomization device - Google Patents
Electrostatic atomization device Download PDFInfo
- Publication number
- CN102668291A CN102668291A CN2010800386384A CN201080038638A CN102668291A CN 102668291 A CN102668291 A CN 102668291A CN 2010800386384 A CN2010800386384 A CN 2010800386384A CN 201080038638 A CN201080038638 A CN 201080038638A CN 102668291 A CN102668291 A CN 102668291A
- Authority
- CN
- China
- Prior art keywords
- electrostatic atomization
- pulse signal
- switch element
- comparator
- atomization apparatus
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/0255—Discharge apparatus, e.g. electrostatic spray guns spraying and depositing by electrostatic forces only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/053—Arrangements for supplying power, e.g. charging power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3381—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement using a single commutation path
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
An electrostatic atomization device (1) provided with a transformer including primary and secondary coils (5a, 5b). A switching element (6) is connected in series to the primary coil. A switching element drive circuit (8) provides the switching element with a pulse signal to perform a switching operation and generate high voltage from the secondary coil. A discharge unit including a discharge electrode (3, 4) performs electrostatic atomization on liquid supplied to the discharge electrode to generate charged fine liquid droplets when high voltage generated by the secondary coil is applied to the discharge electrode. The switching element drive circuit generates a pulse signal having an oscillation frequency set so that the transformer has drooping characteristics that prevent air discharge from occurring between the discharge electrode and ground even when load on the discharge unit varies and prevents the generation of ozone having a predetermined concentration or greater when the liquid undergoes electrostatic atomization.
Description
Technical field
The present invention relates to a kind of electrostatic atomization apparatus.
Background technology
Japan Patent discloses the example of the prior art of the electrostatic atomization apparatus that discloses a kind of charged water droplet that generates nano-scale for 2006-334503 number and 2007-21370 number respectively.Utilizing capillarity to supply water under the state of far-end of sparking electrode, electrostatic atomization apparatus is applied to high voltage on this sparking electrode.When high voltage is applied on this sparking electrode, make the water that is fed on the sparking electrode charged.This just causes the electrostatic atomization that repeats to take place and cause water of Rayleigh (Rayleigh) division.Therefore, this electrostatic atomization apparatus generates the charged water droplet of nano-scale.
In this type electrostatic atomization apparatus, (ringing choke converter RCC) is used as switch mode power with self-oscillation inverse-excitation type vibration-block-up converter.This self-oscillation inverse-excitation type RCC utilizes the feedback coil that is wrapped on the high voltage generation transformer from hunting power FET (power MOSFET).Thereby this self-oscillation inverse-excitation type RCC does not need independent oscillating circuit or similar circuit and has allowed less circuit scale.Thereby this self-oscillation inverse-excitation type RCC is usually used in the electrostatic atomization apparatus.In addition, for the output control of self-oscillation inverse-excitation type RCC, often adopt and come the FEEDBACK CONTROL of fast actuating power MOSFET with switch according to output voltage.
In this electrostatic atomization apparatus, when the voltage when non-loaded is too high, can produce atmospherical discharges, in this case, this electrostatic atomization apparatus may not convert electrostatic atomization into.In addition, when too many water accumulated on the sparking electrode, excessive electric current flow on this sparking electrode.In this case, can produce a large amount of ozone, make the concentration of ozone uprise.
For preventing this problem, need a kind of circuit for producing high voltage with power source loads characteristic, when excessive electric current is flowed through sparking electrode, be applied to the generation that voltage on this sparking electrode suppresses a large amount of ozone through reduction.
Summary of the invention
The object of the present invention is to provide a kind of electrostatic atomization apparatus, it is with low-cost and need not to carry out FEEDBACK CONTROL and just can prevent atmospherical discharges and the generation of ozone in a large number.
One aspect of the present invention is a kind of electrostatic atomization apparatus with transformer, and said transformer comprises primary coil and secondary coil.Switch element is connected in series on the primary coil of transformer.Switch element driver circuit offers this switch element with a pulse signal and carries out switching manipulation and produce high voltage from the secondary coil of transformer to utilize this switch element.The discharge cell that comprises sparking electrode is when the high voltage that is produced by said secondary coil is applied on this sparking electrode, and this discharge cell carries out electrostatic atomization to generate the charged liquid droplet to the liquid that supplies to said sparking electrode.Said switch element driver circuit produces the pulse signal with frequency of oscillation; The frequency of oscillation of this pulse signal is set like this; Even make when liquid carries out electrostatic atomization when the load variations on the discharge cell, the drooping characteristic of said transformer prevents between sparking electrode and ground connection, to take place atmospherical discharges and prevents to produce the ozone with predetermined or higher concentration.
Description of drawings
Fig. 1 is the circuit diagram according to the electrostatic atomization apparatus of one embodiment of the present of invention;
Fig. 2 is the drooping characteristic figure that transformer is shown;
Fig. 3 is the graph of a relation that illustrates between the drooping characteristic of atmospherical discharges voltage and transformer;
Fig. 4 illustrates regulation to produce the figure of ozone amount with respect to the relation of the output voltage of transformer and output current;
Fig. 5 illustrates the graph of a relation of the drooping characteristic of transformer in the present embodiment with respect to atmospherical discharges voltage and regulation generation ozone amount curve;
Fig. 6 is the detailed circuit diagram that present embodiment is shown; With
Fig. 7 is the circuit diagram that the electrostatic atomization apparatus of another embodiment is shown.
Embodiment
Electrostatic atomization apparatus 1 according to one embodiment of the present of invention is described below with reference to accompanying drawings.
Fig. 1 shows the circuit for producing high voltage 2 of electrostatic atomization apparatus 1.Circuit for producing high voltage 2 promptly applies high voltage between the grounding electrode 4 on sparking electrode 3 and ground, and its formation is arranged on the discharge cell in the electrostatic atomization apparatus 1.Sparking electrode 3 and the grounding electrode 4 predetermined distance that is spaced apart from each other.Supply at the water as liquid under the state of far-end of this sparking electrode 3, circuit for producing high voltage 2 applies high voltage between grounding electrode 4 and sparking electrode 3.
Therefore, Coulomb force (coulomb force) makes local rising of liquid level of the water on the far-end that supplies to sparking electrode 3 and forms coniform (taylor cone), the coniform far-end with accumulation that this water raises.This has increased concentration of electric charges, and the repulsive force of this high concentration electric charge makes water splitting and disperses.The electrostatic atomization generation of carrying out multiple division and disperse (Rayleigh division) comprises the charged water droplet (charged fine water droplets) of the nano-scale of spike in a large number.
In Fig. 1, the DC power supply E that produces the 12V direct voltage comprises positive terminal and negative terminal.The series circuit that comprises the primary coil 5a of high voltage generation transformer 5 and be used as the power MOSFET 6 of switch element is connected between the positive terminal and negative terminal of DC power supply E.In addition, between DC power supply E positive terminal and negative terminal, be connected with electrolytic capacitor filter device (smoothing el ectrolytic capacitor) 7.DC power supply E gives the operation driving voltage of supplying with 12V as the oscillating circuit 8 of switch element driver circuit.
Oscillating circuit 8 obtains driving voltage from DC power supply E.Oscillating circuit 8 generates and is used to start and cuts out the pulse signal PS of power MOSFET 6 and via resistance 9 this pulse signal PS is provided to the door terminal of power MOSFET 6.
Power MOSFET 6 is activated or closes when its terminal receives this pulse signal PS.The startup of power MOSFET 6 and closing utilizes DC power supply E to make the primary coil 5a energising of high voltage generation transformer 5 off and on.Thus, the secondary coil 5b of high voltage generation transformer 5 is generated as high-tension secondary voltage.
Between two terminals of secondary coil 5b, be connected with the half-wave rectifying circuit that comprises diode D and capacitor 10.This half-wave rectifying circuit is carried out rectification to the high pressure secondary voltage of secondary coil 5b and is generated the have high pressure output voltage V o of (being 5kV in the present embodiment).
In electrostatic atomization apparatus 1, when the water yield on the sparking electrode 3 tails off, be known that taylor cone diminishes, thereby from the far-end of this taylor cone to the elongated discharging current (output current Io) that reduced of the distance of grounding electrode 4.In electrostatic atomization apparatus 1, when the water yield on the sparking electrode 3 further reduces, between water on the sparking electrode 3 and grounding electrode 4, do not discharge.This has just caused discharge between sparking electrode 3 and the grounding electrode 4 (atmospherical discharges).Thereby, do not carry out electrostatic atomization.
On the other hand, the water yield on the sparking electrode 3 of electrostatic atomization apparatus 1 becomes for a long time, and known taylor cone also becomes greatly, thereby the distance from the far-end of this taylor cone to grounding electrode 4 shortens and increased discharging current.In electrostatic atomization apparatus 1, when the water yield on the sparking electrode 3 further increased, the distance between grounding electrode 4 and the water was very short, thereby short circuit current is flowed through between grounding electrode 4 and the water.Thereby, the mist that can not obtain to have the expectation diameter of droplets.In addition, produce a large amount of ozone.This has just increased the concentration of ozone.
Therefore, must prevent atmospherical discharges.In addition, must prevent to concentrate on the sparking electrode 3 generation of a large amount of ozone when flowing through with overcurrent when big water gaging.In other words, output voltage V o must be lower than the voltage (atmospherical discharges voltage) when atmospherical discharges takes place.In addition, when output current Io was excessive, output voltage V o must reduce so that ozone concentration does not uprise.
For reaching these requirements, the electrostatic atomization apparatus setting in the present embodiment all makes the ozone amount of generation all be less than or equal to ormal weight from the output voltage V o of the secondary coil 5b output of this transformer 5 to prevent the water yield on atmospherical discharges and the sparking electrode 3.This output voltage V o is provided with according to frequency of oscillation and the pulse duration (start-up time) of the pulse signal PS of the door terminal that is offered power MOSFET 6 by oscillating circuit 8.
Concrete, high voltage generation transformer 5 comprises big parasitic capacitance.Thereby the efficient of high voltage generation transformer 5 reduces when frequency of oscillation increases.Therefore, because the drooping characteristic (drooping characteristics) of high voltage generation transformer 5 shown in Figure 2, wherein output voltage V o raises with load current (output current Io) and reduces, and this output voltage V o does not raise when output current Io is very high.
In the present embodiment, the slope of drooping characteristic changes according to frequency of oscillation, can not generate the output voltage V o more than the ozone of controlled quentity controlled variable thereby do not produce.In other words, the drooping characteristic line L1 shown in Fig. 2 changes according to frequency of oscillation and the pulse duration (start-up time) of the pulse signal PS that exports from oscillating circuit 8.
Concrete, for preventing atmospherical discharges, in the drooping characteristic of high voltage generation transformer 5, output voltage V o must be arranged to be less than or equal at least atmospherical discharges voltage Vd for example shown in Figure 3.Thereby, consider that the variation of high voltage generation transformer 5 and individual difference are provided with margin voltage (margin voltage) Vm.In the drooping characteristic of high voltage generation transformer 5, output voltage V o is set to deduct the magnitude of voltage that this margin voltage Vm obtains from atmospherical discharges voltage Vd.
Drooping characteristic shown in Figure 3 obtains through the frequency of oscillation and the pulse duration (start-up time) of setting from the pulse signal PS of oscillating circuit 8 outputs.
Fig. 4 shows the regulation ozone amount and produces curve L2.This regulation ozone amount produces curve L2 and shows output voltage V o and electric current I o, the i.e. power that generates predetermined tolerable ozone generating amount.More specifically, as shown in Figure 4, this regulation ozone amount produces curve L2 and forms a border, and the ozone generating amount is more than or equal to ormal weight in the A scope, and the ozone generating amount is less than ormal weight in the B scope.Therefore, the drooping characteristic of high voltage generation transformer 5 (drooping characteristic line L1) must be included in the scope B.
Thereby; Avoiding atmospherical discharges and preventing in the drooping characteristic (drooping characteristic line L1) of ozone generating amount more than or equal to the high voltage generation transformer 5 of ormal weight; For example as shown in Figure 5; This output voltage V o must be greater than or equal to atmospherical discharges voltage Vd (comprising margin voltage Vm) at least, and power must be less than or equal to the power that is produced curve L2 setting by the regulation ozone amount.Drooping characteristic shown in Figure 5 (drooping characteristic line L1) obtains through the frequency of oscillation of setting from the pulse signal PS of oscillating circuit 8 outputs.
In the present embodiment, the drooping characteristic that is used for high voltage generation transformer 5 shown in Fig. 5 obtains through test, test and calculating.In addition, in the present embodiment, setting becomes to make electrostatic atomization apparatus 1 to move based on drooping characteristic shown in Figure 5 from the frequency of oscillation of the pulse signal PS of oscillating circuit 8 outputs with pulse duration (start-up time).
Thereby the pulse signal PS that oscillating circuit 8 will have frequency of oscillation shown in Figure 5 and pulse duration (start-up time) offers power MOSFET 6, to start and to close power MOSFET.
By this way, electrostatic atomization apparatus 1 has prevented the generation of atmospherical discharges with a large amount of ozone, and the water yield on the sparking electrode 3 that changes no matter depend on situation.
In addition, this just need not to detect output voltage V o or output current Io and based on the output voltage V o or the output current Io of this detection power MOSFET is carried out FEEDBACK CONTROL.Therefore, need not carry out the complicacy and the expensive circuitry of FEEDBACK CONTROL to the output of this electrostatic atomization apparatus 1.Thereby this electrostatic atomization apparatus 1 can be with less parts and lower cost manufacturing.
The circuit for producing high voltage 2 of this electrostatic atomization apparatus 1 will be described with reference to Fig. 6 below.
As shown in Figure 6, oscillating circuit 8 comprises comparator 11.Comparator 11 comprises electrode input end (non-inverting input terminal) of the dividing potential drop that is applied with series circuit, the variable resistor Rb and first resistance R 1 that are connected between the positive terminal that this series circuit is included in DC power supply E and the negative terminal.Promptly; Wherein this series circuit of being connected in series of the variable resistor Rb and first resistance R 1 is connected between the positive terminal and negative terminal of DC power supply E, and the voltage of locating at the tie point (node N1) of the variable resistor Rb and first resistance R 1 (dividing potential drop) is provided to electrode input end of comparator 11 as input voltage Vi.
In addition, the electrode input end of comparator 11 is connected to the lead-out terminal of comparator 11 through second resistance R 2.Negative input of comparator 11 (inverting terminal) is connected to the negative terminal of DC power supply E through capacitor C1.In addition, the negative input of comparator 11 is connected on the lead-out terminal of comparator 11 through the 3rd resistance R 3.
The oscillating circuit 8 that utilizes comparator 11 is at its output production burst signal PS, and this pulse signal PS has square wave and has the frequency of oscillation by the capacitance decision of the resistance of the 3rd resistance R 3 and capacitor C1.Pulse duration (start-up time) or the frequency of resistance regulating impulse signal PS through regulating variable resistor Rb.
In the present embodiment, the frequency of pulse signal PS and pulse duration (start-up time) are scheduled to.That is, as stated, the drooping characteristic of high voltage generation transformer 5 shown in Figure 5 is in advance through testing, testing and calculate.In addition, the frequency of oscillation from the pulse signal PS of oscillating circuit 8 (comparator 11) output is configured to make that with pulse duration (start-up time) electrostatic atomization apparatus 1 moves according to drooping characteristic shown in Figure 5.In other words; Frequency of oscillation and the pulse duration (start-up time) of pulse signal PS are configured to so that generate an output voltage; This output voltage is less than or equal to the voltage that atmospherical discharges takes place, and makes that when excessive output current Io flows through, reducing output voltage V o uprises to prevent ozone concentration.
In the present embodiment, the resistance value of variable resistor Rb is adjusted into frequency of oscillation and the pulse duration (start-up time) of easy setting pulse signal PS.The lead-out terminal of comparator 11 is connected to push-and-pull output (totem pole) drive circuit 12 through the 4th resistance R 4.Push-and-pull output driving circuit 12 comprises NPN transistor T1 and PNP transistor T 2.The base terminal of two transistor Ts 1 and T2 is connected to the lead-out terminal of comparator 11 through the 4th resistance R 4.
The collector terminal of NPN transistor T1 is connected to the positive terminal of DC power supply E, and the collector terminal of PNP transistor T 2 is connected to the negative terminal of DC power supply E.The emitter terminal of two transistor Ts 1 and T2 is connected to each other.The tie point (node N2) of two transistor Ts 1 and T2 is connected to the door terminal of power MOSFET 6 through resistance R 9.
When the pulse signal PS that exports from the output of comparator 11 was high level, NPN transistor T1 was activated, and PNP transistor T 2 is stopped using.Thus, 12V voltage (high level) is applied to the door terminal of power MOSFET 6.This has just started power MOSFET 6.Further, DC power supply E makes the primary coil 5a energising of high voltage generation transformer 5.
On the other hand, when the pulse signal PS that exports from the output of comparator 11 was low level (pulse signal PS disappearance), NPN transistor T1 stopped using, and PNP transistor T 2 is activated.Thus, 0V voltage (low level) is applied to the door terminal of power MOSFET 6.The primary coil 5a outage that this has just started power MOSFET 6 and has made high voltage generation transformer 5.
The pulse signal PS that power MOSFET 6 is exported according to comparator 11 is activated and stops using.This just makes the primary coil 5a energising of high voltage generation transformer 5 off and on.Thus, on the secondary coil 5b of high voltage generation transformer 5, produce high secondary voltage.
The half-wave rectifying circuit that comprises diode D and capacitor 10 is carried out rectification to the high secondary voltage that secondary coil 5b produces.This has just applied the output voltage V o of 5kV between sparking electrode 3 and grounding electrode 4.
In the present embodiment; The frequency of oscillation and the drooping characteristic that pulse duration (start-up time) is configured to obtain high voltage generation transformer 5 of the pulse signal PS that produces from comparator 11, wherein output voltage V o is less than or equal to the power that atmospherical discharges voltage and power are less than or equal to regulation ozone amount generation curve L2 at least.This has just been avoided the generation of atmospherical discharges and has prevented that the ozone generating amount is more than or equal to ormal weight.
Thereby electrostatic atomization apparatus 1 produces the output voltage V o of voltage (atmospherical discharges voltage Vd) when being less than or equal to the atmospherical discharges generation and need not to carry out complicated FEEDBACK CONTROL and when overcurrent Io flows through, reduce this output voltage V o.Thus, electrostatic atomization apparatus 1 has prevented the generation of atmospherical discharges and the generation of a large amount of ozone, and no matter the water yield that on sparking electrode 3, according to circumstances changes.
In addition, in the present embodiment, oscillating circuit 8 is formed by comparator 11.Thereby, through this simple circuit arrangement, generate and to compare pulse signal with traditional similar LC oscillating circuit etc. with continual and steady frequency of oscillation.
In addition, in the present embodiment, the frequency of oscillation of pulse signal PS only just can easily be adjusted through the resistance of regulating variable resistor Rb.The drooping characteristic that this can easily want for high voltage generation transformer 5 acquisitions.
It will be apparent to those skilled in the art that can be with many other particular form embodiment of the present invention, and do not deviate from the spirit or scope of the present invention.Especially should be understood that can be with following form embodiment of the present invention.
In above-mentioned illustrated example, the negative electrode that is arranged on the diode D in the rectification circuit is connected on the secondary coil 5b of transformer 5.Yet as shown in Figure 7, the negative electrode of the diode D in the rectification circuit can be connected on the capacitor 10.That is, when circuit for producing high voltage shown in Figure 62 applied positive output voltage Vo between sparking electrode 3 and grounding electrode 4, circuit for producing high voltage 2 shown in Figure 7 applied negative output voltage Vo between sparking electrode 3 and grounding electrode 4.
In above-mentioned illustrated example, the resistance of variable resistor Rb that is connected to electrode input end of comparator 11 is conditioned the frequency of oscillation with adjustment pulse signal PS.That is, change the drooping characteristic of high voltage generation transformer 5.Perhaps, for example, first resistance R 1 replaceable for variable resistor or capacitor C1 replaceable for having the capacitor of variable capacitance.Can change the frequency of oscillation of the capacitance of variable-resistance resistance or variable capacitance with adjustment pulse signal PS.Further, can change in the capacitor of variable resistor Rb, variable resistor and variable capacitance at least one as required with frequency of oscillation of adjustment pulse signal PS.
In above-mentioned illustrated example, power MOSFET 6 is as switch element.Yet, can replace using bipolar transistor (bipolar transistor) as this switch element.
In above-mentioned illustrated example, utilize half-wave rectifying circuit to come the secondary voltage that secondary coil 5b produces is carried out rectification.Yet this rectified current can be full-wave rectifying circuit.
In above-mentioned illustrated example, oscillating circuit 8 is through comparator 11 operations.Perhaps, can use other oscillating circuit to be configured to export to be used for the pulse signal that starts with the disable switch element.
In above-mentioned illustrated example, adopt 12V DC power supply E.Yet, for example, can replace using the DC power supply that adopts full-wave rectifying circuit commercial electricity to be carried out rectification.
In above-mentioned illustrated example, present embodiment is applicable to through water is carried out the electrostatic atomization apparatus that electrostatic atomization produces charged water droplet.Yet present embodiment is also applicable to through to the liquid except water, and for example skin lotion or chemicals atomize and generate the electrostatic atomization apparatus of the charged liquid droplet with nano-scale.
In above-mentioned illustrated example, grounding electrode 4 is configured to face sparking electrode 3.Yet the setting of grounding electrode 4 and position be restriction especially not.Further, can form by the housing of electrostatic atomization apparatus 1 with these grounding electrode 4 corresponding parts.
Example of the present invention and embodiment should be considered to illustrative and be nonrestrictive, the invention is not restricted to the given details of this paper, but can under the scope of accompanying claims and equivalents, make amendment.
Claims (8)
1. electrostatic atomization apparatus comprises:
Transformer with primary coil and secondary coil;
Switch element, it is connected in series on the said primary coil of said transformer;
Switch element driver circuit, it offers said switch element with pulse signal and carries out switching manipulation and produce high voltage from the said secondary coil of said transformer to utilize said switch element; And
The discharge cell that comprises sparking electrode, wherein when the high voltage that is produced by said secondary coil was applied on this sparking electrode, this discharge cell carried out electrostatic atomization to generate charged liquid droplet to the liquid that supplies to said sparking electrode;
Wherein, Said switch element driver circuit produces the pulse signal with frequency of oscillation; The frequency of oscillation of this pulse signal is set like this; Even make when liquid carries out electrostatic atomization when the load variations on the said discharge cell, said transformer has and prevents at said sparking electrode generation atmospherical discharges and prevent to produce to have to be scheduled to or the drooping characteristic of higher concentration ozone.
2. electrostatic atomization apparatus according to claim 1, wherein, said discharge cell comprises the grounding electrode with the spaced apart certain distance of said sparking electrode, said electrostatic atomization apparatus also comprises:
Be connected the rectification circuit between the secondary coil of said transformer, said sparking electrode and the grounding electrode, wherein said rectification circuit carries out rectification to the high voltage that is produced by said secondary coil and also the high voltage of this rectification is applied between said sparking electrode and the grounding electrode.
3. electrostatic atomization apparatus according to claim 1, wherein, said switch element driver circuit comprises the oscillating circuit that produces said pulse signal.
4. electrostatic atomization apparatus according to claim 3, wherein said oscillating circuit comprises comparator.
5. electrostatic atomization apparatus according to claim 1, wherein said switch element driver circuit comprises:
Fixed resistance that is connected in series and variable resistor;
Comparator, the lead-out terminal that it has inverting terminal, non-inverting input terminal and exports said pulse signal, said non-inverting input terminal is connected to the node between said fixed resistance and the variable resistor; And
Be connected to the capacitor of inverting terminal of said comparator;
Wherein set said frequency of oscillation through regulating said variable-resistance resistance.
6. electrostatic atomization apparatus according to claim 1, wherein said switch element driver circuit comprises:
First fixed resistance that is connected in series and second fixed resistance;
Comparator, the lead-out terminal that it has inverting terminal, non-inverting input terminal and exports said pulse signal, said non-inverting input terminal is connected to the node between said first fixed resistance and second fixed resistance; And
Be connected to the capacitor of variable capacitance of the inverting terminal son of said comparator;
Wherein the capacitance of the capacitor through regulating said variable capacitance is set said frequency of oscillation.
7. electrostatic atomization apparatus according to claim 1, wherein said switch element driver circuit comprises:
First variable resistor and the second adjustable resistance that are connected in series;
Comparator, the lead-out terminal that it has inverting terminal, non-inverting input terminal and exports said pulse signal, said non-inverting input terminal is connected to the node between said first variable resistor and the second adjustable resistance; And
Be connected to the capacitor of variable capacitance of the inverting terminal son of said comparator;
Wherein at least one in the capacitance of the capacitor through regulating said first, second variable-resistance resistance and variable capacitance set said frequency of oscillation.
8. according to each described electrostatic atomization apparatus among the claim 5-7, wherein said switch element driver circuit comprises:
Be connected to the push-and-pull output driving circuit of the lead-out terminal of said comparator, wherein said push-and-pull output driving circuit receives the pulse signal from said comparator, the pulse signal that this pulse signal is amplified and will amplify is provided on the said switch element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009220458A JP2011067746A (en) | 2009-09-25 | 2009-09-25 | Electrostatic atomizer |
| JP2009-220458 | 2009-09-25 | ||
| PCT/JP2010/066116 WO2011037074A2 (en) | 2009-09-25 | 2010-09-13 | Electrostatic atomization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102668291A true CN102668291A (en) | 2012-09-12 |
Family
ID=43706430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800386384A Pending CN102668291A (en) | 2009-09-25 | 2010-09-13 | Electrostatic atomization device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120153055A1 (en) |
| EP (1) | EP2481137A2 (en) |
| JP (1) | JP2011067746A (en) |
| CN (1) | CN102668291A (en) |
| TW (1) | TW201116336A (en) |
| WO (1) | WO2011037074A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176651A (en) * | 2019-07-04 | 2021-01-05 | Bsh家用电器有限公司 | Ozone converter device for a household appliance, household appliance and method |
| CN114325543A (en) * | 2021-11-23 | 2022-04-12 | 国能朔黄铁路发展有限责任公司 | Current transformer abnormity monitoring device and control method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016018610A1 (en) * | 2014-07-30 | 2016-02-04 | Clearsign Combustion Corporation | Asymmetrical unipolar flame ionizer using a step-up transformer |
| TWI584881B (en) * | 2014-08-01 | 2017-06-01 | 心誠鎂行動醫電股份有限公司 | Circuit for atomizing liquid and device thereof |
| CN105334767B (en) * | 2014-08-12 | 2017-12-08 | 心诚镁行动医电股份有限公司 | Liquid atomization circuit and its device |
| CN107314370A (en) * | 2017-08-08 | 2017-11-03 | 东华理工大学 | A kind of alcohol-based fuel Electrostatic Spraying Combustion device |
| US10951116B2 (en) | 2018-03-28 | 2021-03-16 | Monolithic Power Systems, Inc. | Voltage regulator with nonlinear adaptive voltage position and control method thereof |
| US10498234B2 (en) * | 2018-03-28 | 2019-12-03 | Monolithic Power Systems, Inc. | Voltage regulator with nonlinear adaptive voltage position and control method thereof |
| CN210409159U (en) * | 2018-04-20 | 2020-04-28 | 广东东阳光药业有限公司 | Atomization device |
| CN108539979B (en) * | 2018-05-02 | 2020-11-17 | 成都芯源***有限公司 | DC converter and voltage DC conversion method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359341A (en) * | 1992-04-22 | 1994-10-25 | Tek Electronics Manufacturing Corporation | Power supply for sequentially energizing segments of an electroluminescent panel to produce animated displays |
| CN1836605A (en) * | 2005-01-28 | 2006-09-27 | 松下电工株式会社 | Hair dryer with static atomizing device |
| CN100466438C (en) * | 2004-05-24 | 2009-03-04 | 松下电器产业株式会社 | Switching power supply |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527990A (en) * | 1967-12-22 | 1970-09-08 | Borg Warner | Motor speed control system with incremental speed variation |
| US3900766A (en) * | 1971-02-26 | 1975-08-19 | Denki Onkyo Company Ltd | Corona discharge apparatus for particle collection |
| FR2157076A5 (en) * | 1971-10-15 | 1973-06-01 | Gateau Maurice | |
| US4485427A (en) * | 1982-04-19 | 1984-11-27 | Ransburg Corporation | Fold-back power supply |
| US5138513A (en) * | 1991-01-23 | 1992-08-11 | Ransburg Corporation | Arc preventing electrostatic power supply |
| JPH04340363A (en) * | 1991-05-13 | 1992-11-26 | Makita Corp | Switching regulator |
| US5339022A (en) * | 1992-09-24 | 1994-08-16 | The Whitaker Corporation | Capacitive cable length indicator |
| JP2004055542A (en) * | 2003-05-30 | 2004-02-19 | Nippon Pachinko Buhin Kk | Circuit module for ion generating device |
| JP3973652B2 (en) * | 2004-05-24 | 2007-09-12 | 松下電器産業株式会社 | Switching power supply |
| EP1685775B1 (en) * | 2005-01-28 | 2009-10-28 | Panasonic Electric Works Co., Ltd. | Hair dryer with electrostatic atomizing device |
| JP4396580B2 (en) | 2005-06-01 | 2010-01-13 | パナソニック電工株式会社 | Electrostatic atomizer |
| JP4329739B2 (en) * | 2005-07-15 | 2009-09-09 | パナソニック電工株式会社 | Electrostatic atomizer |
| TWI312608B (en) * | 2006-08-01 | 2009-07-21 | Ind Tech Res Inst | Dc-dc converter and error amplifier thereof |
-
2009
- 2009-09-25 JP JP2009220458A patent/JP2011067746A/en not_active Ceased
-
2010
- 2010-09-13 US US13/393,360 patent/US20120153055A1/en not_active Abandoned
- 2010-09-13 WO PCT/JP2010/066116 patent/WO2011037074A2/en active Application Filing
- 2010-09-13 EP EP10760778A patent/EP2481137A2/en not_active Withdrawn
- 2010-09-13 CN CN2010800386384A patent/CN102668291A/en active Pending
- 2010-09-17 TW TW099131717A patent/TW201116336A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5359341A (en) * | 1992-04-22 | 1994-10-25 | Tek Electronics Manufacturing Corporation | Power supply for sequentially energizing segments of an electroluminescent panel to produce animated displays |
| CN100466438C (en) * | 2004-05-24 | 2009-03-04 | 松下电器产业株式会社 | Switching power supply |
| CN1836605A (en) * | 2005-01-28 | 2006-09-27 | 松下电工株式会社 | Hair dryer with static atomizing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176651A (en) * | 2019-07-04 | 2021-01-05 | Bsh家用电器有限公司 | Ozone converter device for a household appliance, household appliance and method |
| CN112176651B (en) * | 2019-07-04 | 2023-09-22 | Bsh家用电器有限公司 | Ozone converter device for a household appliance, household appliance and method |
| CN114325543A (en) * | 2021-11-23 | 2022-04-12 | 国能朔黄铁路发展有限责任公司 | Current transformer abnormity monitoring device and control method |
| CN114325543B (en) * | 2021-11-23 | 2024-03-22 | 国能朔黄铁路发展有限责任公司 | Current transformer abnormality monitoring device and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201116336A (en) | 2011-05-16 |
| EP2481137A2 (en) | 2012-08-01 |
| JP2011067746A (en) | 2011-04-07 |
| WO2011037074A3 (en) | 2011-05-12 |
| US20120153055A1 (en) | 2012-06-21 |
| WO2011037074A2 (en) | 2011-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102668291A (en) | Electrostatic atomization device | |
| CN101340150B (en) | Switching power supply apparatus | |
| US9154039B2 (en) | Switching power converter with secondary-side dynamic load detection and primary-side feedback and control | |
| JP5453508B2 (en) | Isolated flyback converter with efficient light load operation | |
| CN201698247U (en) | Reverse exciting type switch converter controller integrated circuit | |
| US9742291B2 (en) | Control circuit and related integrated circuit and switching-type converter | |
| US10015434B2 (en) | Switched-mode power supply for outputting a steady voltage and current and television including the same | |
| CN105656312A (en) | Switching power supply device | |
| JP2007295761A (en) | Switching power supply | |
| US9318962B2 (en) | Circuits and methods for reducing output voltage overshoot of switch mode power supply | |
| US20110002147A1 (en) | Switching power supply apparatus and semiconductor device for switching power supply regulation | |
| KR101355309B1 (en) | Power supply regulation for ultra-low load and no-load operation | |
| KR101789799B1 (en) | Feedback circuit and power supply device comprising the same | |
| US11404959B2 (en) | DC/DC power converter | |
| US8339809B2 (en) | Switching power supply device | |
| JP4787350B2 (en) | Self-excited switching power supply circuit | |
| CN101841246A (en) | Power supply apparatus | |
| CN103916020B (en) | Switching Power Supply and control circuit thereof | |
| JP2016025722A (en) | Inverter device | |
| CN101557879B (en) | Electrostatic atomizer | |
| US9467071B2 (en) | Voltage resonant inverter, control method, and surface treatment device | |
| JPH10293617A (en) | Constant voltage power supply device and rush current preventing circuit | |
| KR101904336B1 (en) | Wireless Power receiving unit having self-regulation rectifier | |
| CN101512885A (en) | High voltage power supply | |
| JP2009106140A (en) | Switching power-supply circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120912 |