CN103084295A - Driving method and driving circuit of ultrasonic atomizer transduction piece - Google Patents
Driving method and driving circuit of ultrasonic atomizer transduction piece Download PDFInfo
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- CN103084295A CN103084295A CN2011103452562A CN201110345256A CN103084295A CN 103084295 A CN103084295 A CN 103084295A CN 2011103452562 A CN2011103452562 A CN 2011103452562A CN 201110345256 A CN201110345256 A CN 201110345256A CN 103084295 A CN103084295 A CN 103084295A
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Abstract
The invention relates to a driving method and a driving circuit of an ultrasonic atomizer transduction piece and belongs to the field of ultrasonic atomizers. The driving method of the ultrasonic atomizer transduction piece is to intermittently drive the ultrasonic atomizer transduction piece; the driving circuit generates a driving voltage waveform, and the period of the driving voltage waveform is equal to or close to a resonance point f of the transduction piece; the driving circuit generates a driving oscillating voltage waveform, and the period of the driving oscillating voltage waveform is equal to or close to the resonance point f of the transduction piece; the transduction piece is driven, a driving circuit working time T1 is the time which the driving circuit generates the oscillating voltage waveform, a driving circuit stopping working time T2 equals to the time which the driving circuit stops oscillating. Driving voltage waveforms added at two ends of the ultrasonic transduction piece are in intermittent mode, the working time is T1, the stopping working time is T2, and 1 millisecond( T1( 2 second, 5 millisecond( T2( 20 second. The invention improves efficiency of the ultrasonic atomizer transduction piece, prolongs service life, and is suitable for occasions with various powers and especially for occasions with low powers.
Description
Technical field
The driving method of ultrasonic ultrasonic delay line memory transduction piece of the present invention and drive circuit belong to the ultrasonic ultrasonic delay line memory field, particularly relate to a kind of driving method and drive circuit of ultrasonic ultrasonic delay line memory transduction piece.
Background technology
Be used for humidification, perfuming, sterilization or ornamental supersonic atomizer in daily life, the ultrasonic wave that the liquid that is contained in liquid container can be produced by supersonic generator is the atomization of liquid, thereby realizes its atomizing functions.The conventional ultrasonic wave atomizer is comprised of transduction piece and drive circuit, and its operating frequency is generally more than 1.7MHZ.existing driving method is: adopt self-excitation or separately driven circuit to carry out continuous driving to the ultrasonic wave transducer sheet, be under the condition of 24V at input voltage, power generally is greater than and could produces more than 4 watts that enough energy make water atomization and the needs that reach actual use, for use in low-voltage as the condition lower than 12V under, its generation has the required energy of the atomizing effect of actual use value can be larger, be greater than a certain value because only be added in the amplitude of the voltage on ultrasonic transducer, frequency will be in the resonant frequency range of ultrasonic transducer, ultrasonic transducer could produce good atomizing effect, be added in the atomizing effect that the larger ultrasonic transducer of the amplitude of the voltage on ultrasonic transducer produces better, reduced atomizer efficient, the life-span of ultrasonic wave transducer sheet also can reduce.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art part, and provide a kind of cost low, atomization quantity and efficient are high, and the driving method of the ultrasonic ultrasonic delay line memory transduction piece of the occasion that is applicable to various power that physical life is long is specially adapted to lower powered occasion.
The object of the invention is to avoid the deficiencies in the prior art part, and provide a kind of cost low, atomization quantity and efficient are high, and the drive circuit of the ultrasonic ultrasonic delay line memory transduction piece of the occasion that is applicable to various power that physical life is long is specially adapted to lower powered occasion.
The objective of the invention is to reach by following measures, the driving method of ultrasonic ultrasonic delay line memory transduction piece is drive circuit driving ultrasonic ultrasonic delay line memory transduction piece intermittently, drive circuit produces one and drives the oscillating voltage waveform, transduction piece is driven, drive circuit works time T 1 produces the time of oscillating voltage waveform for drive circuit, and the drive circuit off-air time, T2 equaled the time of the drive circuit failure of oscillations.
The driving voltage waveform that the present invention is added in ultrasonic wave transducer sheet two ends is intermittent mode, and the working time is T1, and the off-air time is T2,1 millisecond＜T1＜2 seconds, and 5 milliseconds＜T2＜20 seconds.
Drive circuit of the present invention adopts self-excited circuit, 1 millisecond＜T1＜2 seconds, 5 milliseconds＜T1＜20 seconds.Drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven, drive circuit works time T 1 equals the time that input voltage waveform is high level, and it is the low level time that drive circuit off-air time T2 equals input voltage waveform.
Drive circuit of the present invention adopts separately driven circuit, 1 millisecond＜T1＜2 seconds, 5 milliseconds＜T1＜20 seconds.Input voltage provides its cycle of driving pulse voltage waveform to equal or near the resonance point f of transduction piece, and through the separate excitation drive circuit, transduction piece is driven, drive circuit works time T 1 equals the time that input voltage waveform is the pulse voltage waveform, and drive circuit off-air time T2 equals the time that input voltage waveform is low level or DC level.
The drive circuit of ultrasonic ultrasonic delay line memory transduction piece of the present invention comprises that electric capacity, inductance, pliotron form, the base stage of pliotron and collector terminal shunt capacitance, emitter stage connects inductance, colelctor electrode and emitter stage shunt capacitance, after the base stage contact resistance, series capacitance is connected with transduction piece, colelctor electrode connects transduction piece, is connected inductance, electric capacity on base stage and emitter stage.The input voltage voltage waveform is for controlling self-excitation drive circuit and transduction piece work and out-of-work waveform, when input voltage is high level, self-excitation drive circuit work, self-excitation drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven.When input voltage was low level, self-excitation drive circuit quit work.When input voltage waveform was high level, self-excitation drive circuit working time T1 equaled the time that input voltage waveform is high level, and the time of the driven work of transduction piece is T1.When input voltage was low level, it was the low level time that self-excitation drive circuit off-air time T2 equals input voltage waveform, and the out-of-work time of transduction piece is T2.
The drive circuit of ultrasonic ultrasonic delay line memory transduction piece of the present invention comprises that inductance, metal-oxide-semiconductor form, inductance series connection metal-oxide-semiconductor, the inductance in parallel transduction piece, input voltage 1 forms that its cycle of a voltage waveform equals or near the resonance point f of transduction piece, carries out power amplification by the separate excitation drive circuit and drive transduction piece.When input voltage is to equal or during near the impulse wave of the resonance point f frequency of transduction piece, the separate excitation drive circuit works, and drive transduction piece work by the separate excitation drive circuit.Take time of equaling or carrying out work near the impulse wave of the resonance point f frequency of transduction piece during as T1, the time of the driven circuit drives of transduction piece and work is T1 when input voltage.When keeping low level or keeping high level constant, the separate excitation drive circuit quits work when input voltage, and transduction piece also quits work, and the off-air time is T2.
The drive circuit of ultrasonic ultrasonic delay line memory transduction piece of the present invention comprises by metal-oxide-semiconductor and inductance L 1, L2 and forming, and transduction piece is connected with inductance L 2, metal-oxide-semiconductor series inductance L1, and inductance L 1 is mutual inductance with inductance L 2.Input voltage forms that its cycle of a voltage waveform equals or near the resonance point f of transduction piece, carries out power amplification by the separate excitation drive circuit and drive transduction piece.When input voltage is to equal or during near the impulse wave of the resonance point f frequency of transduction piece, the separate excitation drive circuit works, and drive transduction piece work by the separate excitation drive circuit.Take time of equaling or carrying out work near the impulse wave of the resonance point f frequency of transduction piece during as T1, the time of the driven circuit drives of transduction piece and work is T1 when input voltage.When keeping low level or keeping high level constant, the separate excitation drive circuit quits work when input voltage, and transduction piece also quits work, and the off-air time is T2.
The present invention improves the efficient of ultrasonic ultrasonic delay line memory transduction piece, and is life-extending, is applicable to the drive circuit of ultrasonic ultrasonic delay line memory transduction piece of the occasion of various power, is specially adapted to lower powered occasion.
Description of drawings
Accompanying drawing 1 is the schematic diagram that self-excited circuit of the present invention drives the ultrasonic wave transducer sheet.
Accompanying drawing 2 is schematic diagrames that self-excited circuit of the present invention drives the input voltage waveform cycle of ultrasonic wave transducer sheet driving voltage.
Accompanying drawing 3 is schematic diagrames that self-excited circuit of the present invention drives the output voltage waveforms cycle of ultrasonic wave transducer sheet driving voltage.
Accompanying drawing 4 is schematic diagrames that separately driven circuit of the present invention drives the ultrasonic wave transducer sheet.
Accompanying drawing 5 is schematic diagrames that separately driven circuit of the present invention drives the input voltage waveform cycle of ultrasonic wave transducer sheet driving voltage.
Accompanying drawing 6 is schematic diagrames that separately driven circuit of the present invention drives the output voltage waveforms cycle of ultrasonic wave transducer sheet driving voltage.
Accompanying drawing 7 is drive circuit schematic diagrames of self-excited circuit of the present invention.
Accompanying drawing 8 is drive circuit schematic diagrames of separately driven circuit of the present invention.
Accompanying drawing 9 is drive circuit schematic diagrames of a kind of separately driven circuit of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
In figure: input voltage 1, self-excitation drive circuit 2, output voltage 3, transduction piece 4.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, the driving method of ultrasonic ultrasonic delay line memory transduction piece of the present invention is driving ultrasonic ultrasonic delay line memory transduction piece intermittently, drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven, drive circuit works time T 1 equals the time that input voltage waveform is high level, and it is the low level time that drive circuit off-air time T2 equals input voltage waveform.The driving voltage waveform that is added in ultrasonic wave transducer sheet two ends is intermittent mode, and the working time is T1, and the off-air time is T2,1 millisecond＜T1＜2 seconds, and 5 milliseconds＜T2＜20 seconds.The voltage waveform of input voltage is for controlling self-excitation drive circuit and transduction piece work and out-of-work waveform, when input voltage is high level, self-excitation drive circuit work, self-excitation drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven.When input voltage was low level, self-excitation drive circuit quit work.When input voltage waveform was high level, self-excitation drive circuit working time T1 equaled the time that input voltage waveform is high level, and the time of the driven work of transduction piece is T1.When input voltage was low level, it was the low level time that self-excitation drive circuit off-air time T2 equals input voltage waveform, and the out-of-work time of transduction piece is T2.
As shown in accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, the driving method of ultrasonic ultrasonic delay line memory transduction piece of the present invention is driving ultrasonic ultrasonic delay line memory transduction piece intermittently, drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven, the driving voltage waveform that is added in ultrasonic wave transducer sheet two ends is intermittent mode, and the working time is T1, and the off-air time is T2,1 millisecond＜T1＜2 seconds, 5 milliseconds＜T2＜20 seconds.Input voltage forms that its cycle of a voltage waveform equals or near the resonance point f of transduction piece, carries out power amplification by the separate excitation drive circuit and drive transduction piece.When input voltage is to equal or during near the impulse wave of the resonance point f frequency of transduction piece, the separate excitation drive circuit works, and drive transduction piece work by the separate excitation drive circuit.Take time of equaling or carrying out work near the impulse wave of the resonance point f frequency of transduction piece during as T1, the time of the driven circuit drives of transduction piece and work is T1 when input voltage waveform.When keeping low level constant, the separate excitation drive circuit quits work when input voltage, and transduction piece also quits work, and the off-air time is T2.
as shown in Figure 7, the drive circuit of a kind of ultrasonic ultrasonic delay line memory transduction piece of the present invention, comprise capacitor C 1, C2, C3, C4, inductance L 1, L2, pliotron Q1, transduction piece 4, belong to self-excited circuit, the base stage of pliotron Q1 and collector terminal shunt capacitance C2, emitter stage connects inductance L 2, colelctor electrode and emitter stage shunt capacitance C3, after base stage contact resistance R1, series capacitance C1 is connected with transduction piece, colelctor electrode connects transduction piece, be connected inductance L 1 on base stage and emitter stage, capacitor C 4, when input voltage 1 is high level, self-excitation drive circuit work, self-excitation drive circuit produces that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece, transduction piece is driven.When input voltage 1 was low level, self-excitation drive circuit quit work,
As shown in Figure 8, the drive circuit of a kind of ultrasonic ultrasonic delay line memory transduction piece of the present invention comprises inductance L 1, metal-oxide-semiconductor Q1, transduction piece 4, belongs to separately driven circuit, inductance L 1 series connection metal-oxide-semiconductor Q1, inductance L 1 transduction piece in parallel.When input voltage is to equal or during near the impulse wave of the resonance point f frequency of transduction piece, the separate excitation drive circuit works, and drive transduction piece work by the separate excitation drive circuit.Take time of equaling or carrying out work near the impulse wave of the resonance point f frequency of transduction piece during as T1, the time of the driven circuit drives of transduction piece and work is T1 when input voltage waveform.When keeping low level constant, the separate excitation drive circuit quits work when input voltage, and transduction piece also quits work, and the off-air time is T2.
As shown in Figure 9, the drive circuit of a kind of ultrasonic ultrasonic delay line memory transduction piece of the present invention comprises inductance L 1, L2, metal-oxide-semiconductor Q1, transduction piece 4, belong to separately driven circuit, inductance L 1 is mutual inductance with inductance L 2, L1 series connection metal-oxide-semiconductor Q1, transduction piece is connected with inductance L 2, when input voltage is to equal or during near the impulse wave of the resonance point f frequency of transduction piece, the separate excitation drive circuit works, and drive transduction piece work by the separate excitation drive circuit.Take time of equaling or carrying out work near the impulse wave of the resonance point f frequency of transduction piece during as T1, the time of the driven circuit drives of transduction piece and work is T1 when input voltage waveform.When keeping low level constant, the separate excitation drive circuit quits work when input voltage, and transduction piece also quits work, and the off-air time is T2.
Claims (7)
1. the driving method of a ultrasonic ultrasonic delay line memory transduction piece, it is characterized in that drive circuit driving ultrasonic ultrasonic delay line memory transduction piece intermittently, drive circuit produces one and drives the oscillating voltage waveform, transduction piece is driven, drive circuit works time T 1 produces the time of oscillating voltage waveform for drive circuit, and the drive circuit off-air time, T2 equaled the time of the drive circuit failure of oscillations.
2. the driving method of ultrasonic ultrasonic delay line memory transduction piece according to claim 1, the driving voltage waveform that it is characterized in that being added in ultrasonic wave transducer sheet two ends is intermittent mode, and the working time is T1, and the off-air time is T2,1 millisecond＜T1＜2 seconds, 5 milliseconds＜T2＜20 seconds.
3. the driving method of ultrasonic ultrasonic delay line memory transduction piece according to claim 1, it is characterized in that drive circuit adopts self-excited circuit, 1 millisecond＜T1＜2 seconds, 5 milliseconds＜T1＜20 seconds, drive circuit produced that its cycle of a driving voltage waveform equals or near the resonance point f of transduction piece.
4. the driving method of ultrasonic ultrasonic delay line memory transduction piece according to claim 1, it is characterized in that drive circuit adopts separately driven circuit, 1 millisecond＜T1＜2 seconds, 5 milliseconds＜T1＜20 seconds, input voltage provided its cycle of driving pulse voltage waveform to equal or near the resonance point f of transduction piece.
5. the drive circuit of a ultrasonic ultrasonic delay line memory transduction piece, it is characterized in that comprising that electric capacity, inductance, pliotron form, the base stage of pliotron and collector terminal shunt capacitance, emitter stage connects inductance, colelctor electrode and emitter stage shunt capacitance, after the base stage contact resistance, series capacitance is connected with transduction piece, and colelctor electrode connects transduction piece, is connected inductance, electric capacity on base stage and emitter stage.
6. the drive circuit of a ultrasonic ultrasonic delay line memory transduction piece, is characterized in that comprising that inductance, metal-oxide-semiconductor form, inductance series connection metal-oxide-semiconductor, inductance in parallel transduction piece.
7. the drive circuit of a ultrasonic ultrasonic delay line memory transduction piece is characterized in that comprising by metal-oxide-semiconductor and inductance L 1, L2 forming that transduction piece is connected with inductance L 2, metal-oxide-semiconductor series inductance L1, and inductance L 1 is mutual inductance with inductance L 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103452562A CN103084295A (en) | 2011-11-04 | 2011-11-04 | Driving method and driving circuit of ultrasonic atomizer transduction piece |
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| CN2011103452562A CN103084295A (en) | 2011-11-04 | 2011-11-04 | Driving method and driving circuit of ultrasonic atomizer transduction piece |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604189A (en) * | 2013-05-29 | 2014-02-26 | 珠海格力电器股份有限公司 | Separately excited ultrasonic atomization control circuit |
| CN105268589A (en) * | 2014-05-28 | 2016-01-27 | 闫冬 | Microporous atomizer and adjusting method of atomization amount thereof |
| CN106500263A (en) * | 2016-11-03 | 2017-03-15 | 芯海科技（深圳）股份有限公司 | A kind of atomizer driving frequency adjustment circuit of external vibration and method of testing |
| CN108080203A (en) * | 2018-02-01 | 2018-05-29 | 佛山市顺德区雅洛特电器有限公司 | A kind of ultrasonic atomizatio essential oil device |
| CN112122241A (en) * | 2020-07-20 | 2020-12-25 | 中国电力科学研究院有限公司 | Ultrasonic cleaning device |
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| JPS54145031A (en) * | 1978-05-04 | 1979-11-12 | Matsushita Electric Ind Co Ltd | Ultrasonic liquid atomizer |
| CN2571475Y (en) * | 2002-08-24 | 2003-09-10 | 徐志强 | Low-voltage worked ultrasonic atomizing humidifier |
| CN101674891A (en) * | 2007-04-30 | 2010-03-17 | 宝洁公司 | In order to substrate coated ultrasonic spray apparatus |
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2011
- 2011-11-04 CN CN2011103452562A patent/CN103084295A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54145031A (en) * | 1978-05-04 | 1979-11-12 | Matsushita Electric Ind Co Ltd | Ultrasonic liquid atomizer |
| CN2571475Y (en) * | 2002-08-24 | 2003-09-10 | 徐志强 | Low-voltage worked ultrasonic atomizing humidifier |
| CN101674891A (en) * | 2007-04-30 | 2010-03-17 | 宝洁公司 | In order to substrate coated ultrasonic spray apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604189A (en) * | 2013-05-29 | 2014-02-26 | 珠海格力电器股份有限公司 | Separately excited ultrasonic atomization control circuit |
| CN105268589A (en) * | 2014-05-28 | 2016-01-27 | 闫冬 | Microporous atomizer and adjusting method of atomization amount thereof |
| CN106500263A (en) * | 2016-11-03 | 2017-03-15 | 芯海科技（深圳）股份有限公司 | A kind of atomizer driving frequency adjustment circuit of external vibration and method of testing |
| CN108080203A (en) * | 2018-02-01 | 2018-05-29 | 佛山市顺德区雅洛特电器有限公司 | A kind of ultrasonic atomizatio essential oil device |
| CN108080203B (en) * | 2018-02-01 | 2023-10-27 | 佛山市顺德区雅洛特电器有限公司 | Ultrasonic atomization essential oil device |
| CN112122241A (en) * | 2020-07-20 | 2020-12-25 | 中国电力科学研究院有限公司 | Ultrasonic cleaning device |
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Application publication date: 20130508 |