CN105562397B - Combination frequency ultrasonic cleaning equipment - Google Patents
Combination frequency ultrasonic cleaning equipment Download PDFInfo
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- CN105562397B CN105562397B CN201610092157.0A CN201610092157A CN105562397B CN 105562397 B CN105562397 B CN 105562397B CN 201610092157 A CN201610092157 A CN 201610092157A CN 105562397 B CN105562397 B CN 105562397B
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- 238000004506 ultrasonic cleaning Methods 0.000 title claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 69
- 239000004065 semiconductor Substances 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 11
- 238000002604 ultrasonography Methods 0.000 description 5
- 230000000644 propagated effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000037228 dieting effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000002525 ultrasonication Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention relates to household electrical appliances cleaning equipment fields, more particularly to combination frequency ultrasonic cleaning equipment comprising：Processor, the first push-pull circuit to third push-pull circuit, the first piezoelectric ceramic piece to third piezoelectric ceramic piece；Processor passes through the first push-pull circuit respectively and connect with the first piezoelectric ceramic piece, is connect by the second push-pull circuit with the second piezoelectric ceramic piece, is connect by third push-pull circuit with third piezoelectric ceramic piece.Above-mentioned combination frequency ultrasonic cleaning equipment, it is not interfere with each other by three tunnels of processor generation, the ultrasonic wave of different frequency, and the ultrasonic wave of the ultrasonic wave of first frequency, the ultrasonic wave of second frequency and third frequency overlaps, making can be to the maximum extent with the trough of respective wave crest compensation other side between three, to avoid standing wave phenomena, to improve cleaning efficiency and cleaning effect, and small product size can be effectively reduced using piezoelectric ceramic piece.
Description
Technical field
The present invention relates to household electrical appliances cleaning equipment fields, more particularly to combination frequency ultrasonic cleaning equipment.
Background technique
Ultrasonic wave (Ultrasound) refers to any sound wave or vibration, and frequency is more than the highest that human ear can hear
Threshold value 20kHz.Ultrasonic wave is widely used in various fields due to its high frequency characteristics, such as metal defect detection, workpiece cleaning etc..
Power ultrasonic and detection ultrasonic wave can be divided into according to watt level.
The cleaning principle of power ultrasonic：The ultrasonic energy propagated in a liquid cleans the dirt of body surface,
Its principle can be used " cavitation " phenomenon to explain." cavitation " intensity that cleaning effect and ultrasonic wave generate in a liquid has close pass
System.
Ultrasonic wave is propagated in a liquid by vibration, when its pressure of sound wave reaches an atmospheric pressure, the power of ultrasonic wave
Density is about 0.35W/cm, and the pressure of sound wave peak value for the ultrasonic wave at this moment propagated in a liquid can easily reach vacuum or negative
Pressure；It but is actually thus to generate a very big power in a liquid without existing for negative pressure appearance, by fluid molecule drawing crack at sky
Hole (cavitation nucleus), this cavity are vacuum or very close vacuum.
In addition, the cavity in signal voltage (or ultrasonic wave pressure) value when next half cycle reaches maximum, due to surrounding
The increase of pressure and be crushed, fluid molecule fierceness collision at this time generates very powerful impact force, by cleaned body surface
Dirt hit.
The phenomenon that generating shock wave when these countless tiny and intensive bubbles bursts is referred to as " cavitation " effect.It is this
Cavitation is very easy to generate in the intersection of solid and liquid, thus the object in the liquid for immersing under ultrasonication
There is unusual cleaning action.
In addition, due to ultrasonic wave have the function of it is very strong penetrate solid, the other side table of cleaned material can be penetrated into
Face and all inner cavities immersed in medium, blind hole, slit, the dirt that cleaned material surface is adhered to peel off, and reach preferable
Cleaning effect.
Meanwhile ultrasonic wave also emulsifies neutralization, can more effectively prevent the greasy dirt being cleaned out to be re-attached to clear
On washing part.So this " cavitation " effect is to object surfaces externally and internally in the liquid immersed under ultrasonic wave effect, such as pipe fitting, case
Body part etc. can be cleaned, this is the importance that ultrasonic cleaning is better than other cleaning means.
Currently, the main devices of ultrasonic cleaning apparatus in the market are to be glued at the ultrasonic wave vibration of cleaning container bottom
Son generates the ultrasonic activation of fixed frequency under the action of driving circuit, and the ultrasonic wave propagated in water generates cavitation
Bubbles of vacuum, to be cleaned to body surface.
However, existing ultrasonic cleaning apparatus often has the disadvantage that：
1, single fixed frequency, the fixed vibration frequency of energy converter, cavitation is inadequate and easy row is at standing wave, causes to clean
It is ineffective.
2, using the powerful ultrasonic transducer of large volume, transformer uses magnetic core framework structure, influences entire ultrasound
Wave cleaning equipment, so that its volume is bigger than normal.
3, cleaning efficiency is low, and same cleaning efficiency is difficult to keep in the different depth of water.
Summary of the invention
Based on this, it is necessary to be asked for how to improve cleaning efficiency and cleaning effect and how to reduce small product size etc.
Topic, provides a kind of combination frequency ultrasonic cleaning equipment.
A kind of combination frequency ultrasonic cleaning equipment, including：Processor, the first push-pull circuit to third push-pull circuit,
One piezoelectric ceramic piece is to third piezoelectric ceramic piece；
The processor passes through first push-pull circuit respectively and connect with first piezoelectric ceramic piece, passes through described
Two push-pull circuits are connect with second piezoelectric ceramic piece, are connected by the third push-pull circuit and the third piezoelectric ceramic piece
It connects；
First piezoelectric ceramic piece is used to generate the ultrasonic wave of first frequency, and second piezoelectric ceramic piece is for generating
The ultrasonic wave of second frequency, the third piezoelectric ceramic piece are used to generate the ultrasonic wave of third frequency.
It in one of the embodiments, further include the first feed circuit to third feed circuit；
The processor passes through first feed circuit respectively and connect with first piezoelectric ceramic piece, passes through described
Two feed circuits are connect with second piezoelectric ceramic piece, are connected by the third feed circuit and the third piezoelectric ceramic piece
It connects；
The processor adjusts the power of the ultrasonic wave of the first frequency according to first feed circuit respectively, according to
Second feed circuit adjusts the power of the ultrasonic wave of the second frequency, according to third feed circuit adjustment described the
The power of the ultrasonic wave of three frequencies.
In one of the embodiments, further include rectification circuit, the output end of the rectification circuit respectively with the processing
Device, first push-pull circuit, second push-pull circuit, third push-pull circuit connection.
In one of the embodiments, first push-pull circuit include the first totem-pote circuit, the second totem-pote circuit,
First metal-oxide-semiconductor, the second metal-oxide-semiconductor and the first transformer；
First totem-pote circuit is separately connected the processor and first metal-oxide-semiconductor, the second totem electricity
Road is separately connected the processor and second metal-oxide-semiconductor；
First metal-oxide-semiconductor is connect with the direct-flow input end of first transformer, second metal-oxide-semiconductor and described first
Another direct-flow input end of transformer connects, and first transformer is also connect with first piezoelectric ceramic piece.
First transformer includes two direct-flow input ends, ac input end and two exchanges in one of the embodiments,
Output end,
First metal-oxide-semiconductor is connect with a direct-flow input end, second metal-oxide-semiconductor and another direct-flow input end
Connection, the ac input end is electric for connecting external communication,
First piezoelectric ceramic piece and two ac output ends are formed into a loop.
Is also in series between first piezoelectric ceramic piece and two ac output ends in one of the embodiments,
One inductance.
It in one of the embodiments, further include ontology, fluted and installation cavity is arranged in the ontology, and the groove is used for
Liquid water is accommodated,
The processor, first push-pull circuit to the third push-pull circuit, first piezoelectric ceramic piece to institute
Third piezoelectric ceramic piece is stated to be set in the installation cavity.
First piezoelectric ceramic piece, second piezoelectric ceramic piece and the third pressure in one of the embodiments,
Electroceramics piece is uniformly distributed and abuts the bottom portion of groove.
The ontology is the hollow cylinder structure of a side opening in one of the embodiments,.
The ontology is the cube structure of a hollow side opening in one of the embodiments,.
Above-mentioned combination frequency ultrasonic cleaning equipment is not interfere with each other, the ultrasound of different frequency by three tunnels of processor generation
Wave, and the ultrasonic wave of the ultrasonic wave of first frequency, the ultrasonic wave of second frequency and third frequency overlaps, and makes energy between three
The trough for compensating other side with respective wave crest to the maximum extent, to avoid standing wave phenomena, to improve cleaning efficiency and cleaning
Effect, and small product size can be effectively reduced using piezoelectric ceramic piece.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention combination frequency ultrasonic cleaning equipment；
Fig. 2 is the individual waveform signal of ultrasonic wave of one embodiment of the invention first frequency, second frequency and third frequency
The waveform diagram that figure and three are overlapped；
Fig. 3 is the structural schematic diagram of another embodiment of the present invention combination frequency ultrasonic cleaning equipment；
Fig. 4 is the electrical block diagram of one embodiment of the invention combination frequency ultrasonic cleaning equipment；
Fig. 5 is the structural schematic diagram of another embodiment of the present invention combination frequency ultrasonic cleaning equipment.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited by the specific embodiments disclosed below.
It should be noted that it can be directly another when element is referred to as " being fixed on ", " being set to " another element
On a element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it be can be
It is directly connected to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "left", "right" and similar statement for illustrative purposes only, be not meant to be the only embodiment.
Referring to Fig. 1, it is the structural schematic diagram of one embodiment of the invention combination frequency ultrasonic cleaning equipment, compound frequency
Rate ultrasonic cleaning equipment 10 includes：Processor 100, the first push-pull circuit 210, the second push-pull circuit 220, third push-pull circuit
230, the first piezoelectric ceramic piece 310, the second piezoelectric ceramic piece 320, third piezoelectric ceramic piece 330.
Processor 100 is connect by the first push-pull circuit 210 with the first piezoelectric ceramic piece 310 respectively, is recommended by second
Circuit 220 is connect with the second piezoelectric ceramic piece 320, is connect by third push-pull circuit 230 with third piezoelectric ceramic piece 330.
First piezoelectric ceramic piece 310 is used to generate the ultrasonic wave of first frequency, and the second piezoelectric ceramic piece 320 is for generating the
The ultrasonic wave of two frequencies, third piezoelectric ceramic piece 330 are used to generate the ultrasonic wave of third frequency.
The ultrasonic wave of the ultrasonic wave of first frequency, the ultrasonic wave of second frequency and third frequency overlaps, and the second frequency
The wave crest of the ultrasonic wave of the wave crest and third frequency of the ultrasonic wave of rate is different, and is located at adjacent two wave of the ultrasonic wave of first frequency
Between peak.
It is not interfere with each other by three tunnels of processor generation, the ultrasonic wave of different frequency, and the ultrasonic wave of first frequency, the second frequency
The ultrasonic wave of rate and the ultrasonic wave of third frequency overlap, and making can be to the maximum extent with the compensation pair of respective wave crest between three
The trough of side, to avoid standing wave phenomena, to improve cleaning efficiency and cleaning effect, and can be effectively using piezoelectric ceramic piece
Reduce small product size.
It should be noted that being used to clean the ultrasonic wave of generation in the present invention is power ultrasonic, it is only necessary to it is sent,
It does not need to receive echo.
To generate high-precision PWM (pulse width modulation) waveform, for example, processor 100 is that pulse width modulation occurs
Control chip.Control chip occurs to generate a variety of high-precision ultrasound wave frequency rates in this way, modulating by pulse width.
Referring to Fig. 2, it is individual for the ultrasonic wave of one embodiment of the invention first frequency, second frequency and third frequency
The waveform diagram that waveform diagram and three are overlapped, it is known that, the ultrasonic wave of 25K~28KHz frequency have cavitation intensity it is high,
The advantages that cleaning ability is strong.
In conjunction with the gravity frequency of the ultrasonic oscillator of mainstream in the market, in the present embodiment, the ultrasonic wave f1 of first frequency is adopted
With 26KHz, i.e., when drawing up 26KHz dominant frequency sound wave by processor die and propagating in liquid medium, standing wave is formed in depth direction
Waveform.
It should be pointed out that wave crest represents sound pressure amplitudes maximum, that is, cavitation is most strong；And trough then represents acoustic pressure vibration
At width minimum, i.e. cavitation the weakest point.Cleaned workpiece when being cleaned using single ultrasonic frequency, at trough
Just cannot effectively it clean.
Therefore, constant in the horizontal distance for ensuring dominant frequency sound wave wave crest opposed valleys, that is, the feelings that sonic wave amplitude is constant
Under condition, then the ultrasonic wave of second frequency, third frequency is produced by processor, and by first frequency, second frequency and third
The ultrasonic wave of frequency coincides together, and making can be to the maximum extent with the trough of respective wave crest compensation other side between three.
In this way, in such a way that software is simulated by three kinds of frequency compoundings together after, almost without the presence of standing wave phenomena,
The uniformity that greatly uniform ultrasonic sound field is distributed in the medium, improves cleaning efficiency and cleaning effect.
Referring to Fig. 3, it is the structural schematic diagram of another embodiment of the present invention combination frequency ultrasonic cleaning equipment 20, this
In embodiment, combination frequency ultrasonic cleaning equipment 20 further includes the first feed circuit 410, the second feed circuit 420 and third
Feed circuit 430.
Processor 100 is connect by the first feed circuit 410 with the first piezoelectric ceramic piece 310 respectively, passes through the second feedback
Circuit 420 is connect with the second piezoelectric ceramic piece 320, is connect by third feed circuit 430 with third piezoelectric ceramic piece 330.
Processor 100 adjusts the power of the ultrasonic wave of first frequency according to the first feed circuit 410 respectively, anti-according to second
Current feed circuit 420 adjusts the power of the ultrasonic wave of second frequency, adjusts the ultrasonic wave of third frequency according to third feed circuit 430
Power.
It is appreciated that the PWM duty cycle of conventional ultrasound wave circuit is fixed value, and in ultrasonic cleaning, the depth pair of water
The load current of ultrasonic cleaning equipment has an impact, i.e., water is deeper, loads bigger.Therefore, in the cavitation and cleaning maintained like
When efficiency, the load current needed is bigger.
In the present embodiment, load current is sampled, processor adjusts PWM's according to the feedback quantity of each feed circuit
Duty ratio, so that the adjusting of load current size is realized, so that cleaning device can generate stabilization under all types of situations
Ultrasonic wave.
For convenient for power supply, combination frequency ultrasonic cleaning equipment further includes rectification circuit.The input terminal of rectification circuit connects
External communication electricity.The output end of rectification circuit respectively with processor 100, the first push-pull circuit 210, the second push-pull circuit 220,
The connection of three push-pull circuits 230.
In this way, being processor 100 by rectification circuit, the first push-pull circuit 210, the second push-pull circuit 220, third are recommended
Circuit 230 is powered, and the stability of ultrasonic cleaning equipment work is improved.
In the present embodiment, by the control of control processor 100, the first piezoelectric ceramic piece generates the first frequency of 26KHz
Ultrasonic wave, the second piezoelectric ceramic piece generates the ultrasonic wave of the second frequency of 47KHz, and third piezoelectric ceramic piece generates 88KHz
The ultrasonic wave of third frequency.
Referring to Fig. 4, it is the electrical block diagram of one embodiment of the invention combination frequency ultrasonic cleaning equipment, the
One push-pull circuit 210 includes the first totem-pote circuit 211, the second totem-pote circuit 212, the first metal-oxide-semiconductor M11, the second metal-oxide-semiconductor
M12 and the first transformer T1.
First totem-pote circuit 211 is separately connected processor 100 and the first metal-oxide-semiconductor M11, and the second totem-pote circuit 212 divides
It Lian Jie not processor 100 and the second metal-oxide-semiconductor M12.
First metal-oxide-semiconductor M11 is connect with the direct-flow input end of the first transformer T1, the second metal-oxide-semiconductor M12 and the first transformer T1
The connection of another direct-flow input end, the first transformer T1 also connect with the first piezoelectric ceramic piece 310.
As shown in figure 4, the first totem-pote circuit 211 includes NPN type triode Q11, Q13 specific in the present embodiment,
PNP type triode Q12, Q14.The base stage of Q11 and Q12 is connected and connect with processor, the emitter of Q11 and the emitter of Q12
It connects and is connect with the pole G of M11.The collector of Q11 connects 12V DC power supply.The grounded collector of Q12.
The base stage of Q13 and Q14 is connected and connect with processor, and the emitter connection of the emitter and Q14 of Q13 is simultaneously and M12
The pole G connection.The collector of Q13 connects 12V DC power supply.The grounded collector of Q14.
The pole D of M11 is connect with the first transformer T1, the pole S ground connection.The pole D of M12 is connect with the first transformer T1, and the pole S connects
Ground.First transformer T1 is also connect with external firewire L.
Specific in the present embodiment, the first transformer T1 includes two direct-flow input ends, ac input end and two exchange outputs
End, the first metal-oxide-semiconductor M11 are connect with a direct-flow input end, and the second metal-oxide-semiconductor M12 is connect with another direct-flow input end, ac input end
For connecting external communication electricity.First piezoelectric ceramic piece 310 and two ac output ends are formed into a loop.In one embodiment, the first pressure
The first inductance L11 is also in series between electroceramics piece 310 and two ac output ends.
It should be noted that since the circuit structure of the second push-pull circuit 220 and third push-pull circuit 230 is recommended with first
The circuit structure of circuit 210 is similar, therefore the specific connection of the circuit of the second push-pull circuit 220 and third push-pull circuit 230 is closed
System can refer to Fig. 4, and details are not described herein again.
Referring to Fig. 5, it is the structural schematic diagram of another embodiment of the present invention combination frequency ultrasonic cleaning equipment, it is compound
Frequency ultrasonic wave cleaning device further includes ontology 400.For example, fluted 410 and installation cavity 420 are arranged in ontology 400.The present embodiment
In, groove 410 is equipped with liquid water 50.
Processor 100, the first push-pull circuit 210 to third push-pull circuit 230, the first piezoelectric ceramic piece 310 to third pressure
Electroceramics piece 330 is set in installation cavity 420.
First piezoelectric ceramic piece 310, the second piezoelectric ceramic piece 320 and third piezoelectric ceramic piece 330 are uniformly distributed and abut
410 bottom of groove.In one embodiment, ontology 400 is the hollow cylinder structure of a side opening.In one embodiment, ontology 400 is
The cube structure of a hollow side opening.
Below by taking a specific cleaning process as an example, the present invention is further illustrated：
Firstly, groove is packed into suitable moisture, the household appliance for needing to clean is placed in a groove, it is preferred that by family
The part that the needs of electric equipment clean is completely immersed in liquid water.
Then, power on, start processor so that the first piezoelectric ceramic piece, the second piezoelectric ceramic piece, third piezoelectricity
Potsherd generates that three tunnels are not interfere with each other, the ultrasonic wave of different frequency is to clean household appliance respectively.
Finally, disconnection power supply takes out household appliance, and cleaning is completed being more than after preset conduction time.
The advantage of the invention is that：It is not interfere with each other by three tunnels of processor generation, the ultrasonic wave of different frequency, and the first frequency
The ultrasonic wave of the ultrasonic wave of rate, the ultrasonic wave of second frequency and third frequency overlaps, and making can be to the maximum extent between three
To improve cleaning efficiency and cleaning effect, and used with the trough of respective wave crest compensation other side to avoid standing wave phenomena
Piezoelectric ceramic piece can be effectively reduced small product size.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of combination frequency ultrasonic cleaning equipment, which is characterized in that including：Processor, the first push-pull circuit to third push away
Draw circuit, the first piezoelectric ceramic piece to third piezoelectric ceramic piece；
The processor be pulse width modulation occur control chip, the processor pass through respectively first push-pull circuit with
The first piezoelectric ceramic piece connection, is connect, by described with second piezoelectric ceramic piece by second push-pull circuit
Third push-pull circuit is connect with the third piezoelectric ceramic piece；
First piezoelectric ceramic piece is used to generate the ultrasonic wave of first frequency, and second piezoelectric ceramic piece is for generating second
The ultrasonic wave of frequency, the third piezoelectric ceramic piece are used to generate the ultrasonic wave of third frequency；
It further include the first feed circuit to third feed circuit；
The processor passes through first feed circuit respectively and connect with first piezoelectric ceramic piece, anti-by described second
Current feed circuit is connect with second piezoelectric ceramic piece, is connect by the third feed circuit with the third piezoelectric ceramic piece；
The processor adjusts the power of the ultrasonic wave of the first frequency according to first feed circuit respectively, according to described
Second feed circuit adjusts the power of the ultrasonic wave of the second frequency, adjusts the third frequency according to the third feed circuit
The power of the ultrasonic wave of rate；
The ultrasonic wave of the ultrasonic wave of the first frequency, the ultrasonic wave of the second frequency and the third frequency overlaps,
And the wave crest of the wave crest of the ultrasonic wave of the second frequency and the ultrasonic wave of the third frequency is different, and is located at first frequency
Between adjacent two wave crest of the ultrasonic wave of rate.
2. combination frequency ultrasonic cleaning equipment according to claim 1, which is characterized in that it further include rectification circuit, institute
State the output end of rectification circuit respectively with the processor, first push-pull circuit, second push-pull circuit, the third
Push-pull circuit connection.
3. combination frequency ultrasonic cleaning equipment according to claim 2, which is characterized in that the first push-pull circuit packet
Include the first totem-pote circuit, the second totem-pote circuit, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor and the first transformer；
First totem-pote circuit is separately connected the processor and first metal-oxide-semiconductor, second totem-pote circuit point
The processor and second metal-oxide-semiconductor are not connected；
First metal-oxide-semiconductor is connect with the direct-flow input end of first transformer, second metal-oxide-semiconductor and first transformation
Another direct-flow input end of device connects, and first transformer is also connect with first piezoelectric ceramic piece.
4. combination frequency ultrasonic cleaning equipment according to claim 3, which is characterized in that first transformer includes
Two direct-flow input ends, ac input end and two ac output ends,
First metal-oxide-semiconductor is connect with a direct-flow input end, and second metal-oxide-semiconductor and another direct-flow input end connect
It connecing, the ac input end is electric for connecting external communication,
First piezoelectric ceramic piece and two ac output ends are formed into a loop.
5. combination frequency ultrasonic cleaning equipment according to claim 4, which is characterized in that first piezoelectric ceramic piece
The first inductance is also in series between two ac output ends.
6. combination frequency ultrasonic cleaning equipment according to claim 1, which is characterized in that it further include ontology, described
Fluted and installation cavity is arranged in body, and the groove is used to accommodate liquid water,
The processor, first push-pull circuit to the third push-pull circuit, first piezoelectric ceramic piece to described
Three piezoelectric ceramic pieces are set in the installation cavity.
7. combination frequency ultrasonic cleaning equipment according to claim 6, which is characterized in that first piezoelectric ceramics
Piece, second piezoelectric ceramic piece and the third piezoelectric ceramic piece are uniformly distributed and abut the bottom portion of groove.
8. combination frequency ultrasonic cleaning equipment according to claim 6, which is characterized in that the ontology is a side opening
Hollow cylinder structure.
9. combination frequency ultrasonic cleaning equipment according to claim 6, which is characterized in that the ontology is hollow side
The cube structure of opening.
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| CN201610092157.0A CN105562397B (en) | 2016-02-18 | 2016-02-18 | Combination frequency ultrasonic cleaning equipment |
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| CN105871224A (en) * | 2016-06-07 | 2016-08-17 | 深圳市智水小荷技术有限公司 | Ultrasonic power circuit and ultrasonic cleaning equipment |
| CN106269694B (en) * | 2016-09-05 | 2018-06-01 | 西北农林科技大学 | Variable ratio frequency changer portable supersonic washer |
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| CN101143363A (en) * | 2007-09-25 | 2008-03-19 | 鄞云光 | Ultrasonic multi-frequency cleaning machine |
| CN201371144Y (en) * | 2009-03-05 | 2009-12-30 | 宁波新芝生物科技股份有限公司 | Multi-frequency ultrasonic cleaning machine |
| CN201742308U (en) * | 2010-01-06 | 2011-02-09 | 必能信超声(上海)有限公司 | Ultrasonic cleaning machine circuit |
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