CN113787050A - Ultrasonic cleaner with controllable ultrasonic output waveform - Google Patents
Ultrasonic cleaner with controllable ultrasonic output waveform Download PDFInfo
- Publication number
- CN113787050A CN113787050A CN202111132844.8A CN202111132844A CN113787050A CN 113787050 A CN113787050 A CN 113787050A CN 202111132844 A CN202111132844 A CN 202111132844A CN 113787050 A CN113787050 A CN 113787050A
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- ultrasonic
- output waveform
- controllable
- alternating current
- frequency
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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
- B06B1/0207—Driving circuits
- B06B1/0223—Driving circuits for generating signals continuous in time
- B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The invention discloses an ultrasonic cleaner with controllable ultrasonic output waveform, which comprises a control panel; the control panel is provided with a phase detection circuit and an ultrasonic wave generation circuit; the controllable ultrasonic output waveform comprises the following steps: s1, the control board controls the phase detection circuit to detect the phase of the input alternating current; s2, determining the start-stop position of the ultrasonic sweep frequency; s3, determining the width of frequency sweep and the frequency point number of frequency sweep; s4, determining the position distribution of each frequency point in each cycle of the ultrasonic output waveform; s5, the control board controls the ultrasonic generator to output waveform; changing the frequency point of the sweep frequency along with the phase change of the alternating current, and changing the power of the ultrasonic wave under the condition that the output amplitude of the ultrasonic wave is not changed; therefore, in each period of alternating current, the output waveform of the ultrasonic wave is controllable, stable output is achieved, and a stable cleaning effect is achieved; reducing the risk of damaging the transducer and the cleaning tank.
Description
Technical Field
The invention relates to the technical field of ultrasonic frequency sweeping, in particular to an ultrasonic cleaning machine with controllable ultrasonic output waveform.
Background
At present, the frequency sweeping mode of the common ultrasonic cleaning machine with the frequency sweeping function in the market is single and random, or the output waveform of the ultrasonic wave is uncontrollable. Because the amplitude of the output waveform of the ultrasonic wave is related to the resonance frequency point and the input voltage, when the input voltage is higher and at the resonance frequency point, the peak value of the output voltage of the ultrasonic wave is higher, and the transducer and the cleaning tank can be damaged by the too high peak value, so that the output waveform of the ultrasonic wave in each period of the alternating current is inconsistent inevitably due to the frequency sweeping mode, the cleaning effect and the stability of the ultrasonic wave are influenced, and the ultrasonic transducer and the cleaning tank are more easily damaged.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an ultrasonic cleaning machine with controllable ultrasonic output waveform.
In order to achieve the purpose, the invention adopts the following technical scheme:
an ultrasonic cleaner with controllable ultrasonic output waveform, which comprises a control panel; the control panel is provided with a phase detection circuit and an ultrasonic wave generation circuit; the ultrasonic output waveform is controllable, and comprises the following steps:
s1, the control board controls the phase detection circuit to detect the phase of the input alternating current;
s2, determining the start and stop positions of the ultrasonic frequency sweep;
s3, determining the width of the frequency sweep and the frequency point number of the frequency sweep;
s4, determining the position distribution of each frequency point in each period of the ultrasonic output waveform;
and S5, the control board controls the ultrasonic generator to output waveforms.
Preferably, the phase detection circuit includes a first rectifier bridge, a first optocoupler, a first resistor, a second resistor, a third resistor, a fourth resistor, and a first capacitor; the alternating current passes through 100 hz's of first rectifier bridge output alternating current, passes through again first opto-coupler, first resistance, second resistance, third resistance, fourth resistance and first electric capacity transmit extremely the control panel.
Preferably, the ultrasonic wave generating circuit comprises a first ultrasonic wave generating circuit and a second ultrasonic wave generating circuit, and the first ultrasonic wave generating circuit and the second ultrasonic wave generating circuit are both provided with an ultrasonic wave driving circuit and a power amplifying circuit; the ultrasonic waves are driven to generate through the ultrasonic driving circuit, and the power of the ultrasonic waves is amplified through the power amplifying circuit.
Preferably, the alternating current in S1 is 220V alternating current.
Preferably, the ultrasonic cleaning machine further comprises a main body and a transducer; a cleaning tank is arranged in the main body, and the transducer is arranged on the main body; the ultrasonic generator is connected with the energy converter.
Preferably, the transducer converts the ultrasonic wave emitted by the ultrasonic generator into mechanical vibration.
Preferably, the mechanical vibration drives micro-bubbles of the liquid in the cleaning tank to vibrate, so that the adsorption of the dirt on the surface of the cleaning piece is damaged.
Compared with the prior art, the invention has the beneficial effects that:
the invention designs an ultrasonic cleaner with controllable ultrasonic output waveform, wherein the frequency point of sweep frequency is changed along with the phase change of alternating current, and the power of ultrasonic is changed under the condition that the output amplitude of the ultrasonic is not changed; therefore, in each period of alternating current, the output waveform of the ultrasonic wave is controllable, stable output is achieved, and a stable cleaning effect is achieved; reducing the risk of damaging the transducer and the cleaning tank; the sound energy of a power ultrasonic frequency source of an ultrasonic generator is converted into mechanical vibration through a transducer, and ultrasonic waves are radiated to the cleaning liquid in the groove through the wall of the cleaning groove; the micro-bubbles in the liquid in the cleaning tank can keep vibrating under the action of sound waves due to the radiation of the ultrasonic waves; the adsorption of the dirt and the surface of the cleaning piece is damaged, the dirt layer is damaged by fatigue and is separated, and the vibration of the gas bubbles cleans the solid surface.
Drawings
FIG. 1 is a schematic diagram of the steps of the present invention for controlling the waveform of the output ultrasonic wave;
fig. 2 is a schematic circuit diagram of a control board according to the present invention;
fig. 3 is a schematic structural diagram of a phase detection circuit according to the present invention;
FIG. 4 is a schematic diagram of an input voltage waveform after being rectified by the first rectifier bridge according to the present invention;
FIG. 5 is a schematic diagram of phase zero detection according to the present invention;
FIG. 6 is a schematic structural diagram of an ultrasonic cleaning machine according to the present invention;
fig. 7 is a schematic structural diagram of a first ultrasonic wave generating circuit according to the present invention;
fig. 8 is a schematic structural diagram of a second ultrasonic wave generating circuit according to the present invention.
Illustration of the drawings:
1. the body, 2, the transducer,
3. an ultrasonic generator, 4, a cleaning tank,
u3, a control panel, DB2, a first rectifier bridge,
u6, a first optocoupler, R33, a first resistor,
r13, a second resistor, R20, a third resistor,
r42, a fourth resistor, C11 and a first capacitor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, an ultrasonic cleaner with controllable ultrasonic output waveform includes a control board U3; a phase detection circuit and an ultrasonic wave generation circuit are arranged on the control panel U3; the controllable ultrasonic output waveform comprises the following steps: s1, the control board U3 controls the phase detection circuit to detect the phase of the input alternating current; s2, determining the start-stop position of the ultrasonic sweep frequency; s3, determining the width of frequency sweep and the frequency point number of frequency sweep; s4, determining the position distribution of each frequency point in each cycle of the ultrasonic output waveform; s5, the control board U3 controls the output waveform of the ultrasonic generator.
The phase detection circuit comprises a first rectifier bridge DB2, a first optocoupler U6, a first resistor R33, a second resistor R13, a third resistor R20, a fourth resistor R42 and a first capacitor C11; the alternating current outputs 100hz alternating current through the first rectifier bridge DB2, and is transmitted to the control board U3 through the first optocoupler U6, the first resistor R33, the second resistor R13, the third resistor R20, the fourth resistor R42 and the first capacitor C11; the alternating current in S1 is 220V alternating current, and the sine wave of the positive half cycle of 100hz is output after passing through the first rectifier bridge DB2, as shown in fig. 4, with each cycle of 10 ms; the alternating current of 100hz passes through the first optocoupler U6, the first resistor R33, the second resistor R13 and the third resistor R20 to obtain signals shown in fig. 5 at nodes of the fourth resistor R42 and the first capacitor C11, the signals are detected through an external interrupt rising edge IO port of the control board U3, actually, a real zero crossing point is in the middle of one pulse width of a D waveform, corresponding delay judgment is carried out in a program of the control board, the phase zero point of the alternating current signal can be judged, and the points can be used as start and stop positions of frequency sweeping.
The ultrasonic generating circuit comprises a first ultrasonic generating circuit and a second ultrasonic generating circuit, and the first ultrasonic generating circuit and the second ultrasonic generating circuit are both provided with an ultrasonic driving circuit and a power amplifying circuit; ultrasonic waves are driven to generate through an ultrasonic driving circuit, and the power of the ultrasonic waves is amplified through a power amplifying circuit; two pairs of complementary same-period sweep frequency signals PWMA, PWMB generated by the control board U3 drive the amplification control post-stage power amplification circuit through U1 and U2. The PWMA is set by the control board U3, the PWMB frequency sweeping width and the frequency point number of frequency sweeping are used for determining the position distribution of each frequency point in 10ms of the half period of the alternating current, for example, the frequency sweeping width is set to be 2KHZ, the frequency sweeping point number is set to be 20, the stepping of the frequency sweeping is 100HZ, and the duration of each frequency point is 500 us; then, as long as the initial frequency of the sweep frequency is determined, the position distribution of each frequency point in the alternating current 10ms period can be determined, it can be known from fig. 4 that the peak voltage of the alternating current is the maximum in the position of 5ms, the output amplitude waveform can be controlled through the proper frequency point distribution, the occurrence of overhigh amplitude is avoided, the damage to the transducer and the inner tank is avoided, the output stability in each period is also ensured, and the cleaning effect is ensured.
The power can also be reduced by reducing the number of frequency points of the sweep frequency, for example, only 9ms of ultrasonic wave output exists in a 10ms period, so that the power can be reduced under the condition of not changing the output amplitude. For example, the output voltage amplitude in the second half is larger than that in the first half, indicating that the resonance point is located closer to the second half of the 10Ms period.
The ultrasonic cleaner also comprises a main body 1, an energy converter 2 and an ultrasonic generator 3; a cleaning tank 4 is arranged in the main body 1, and the transducer 2 is arranged on the main body 1; the ultrasonic generator 3 is connected with the transducer 2, the sound energy of a power ultrasonic frequency source of the ultrasonic generator 3 is converted into mechanical vibration through the transducer 2, and ultrasonic waves are radiated to the cleaning liquid in the groove through the wall of the cleaning groove; due to the radiation of the ultrasonic wave, the micro bubbles in the liquid in the cleaning tank 4 can keep vibrating under the action of the sound wave; the adsorption of the dirt and the surface of the cleaning piece is damaged, the dirt layer is damaged by fatigue and is separated, and the vibration of the gas bubbles cleans the solid surface.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. An ultrasonic cleaner with controllable ultrasonic output waveform, which comprises a control panel; the control panel is provided with a phase detection circuit and an ultrasonic wave generation circuit; the method is characterized in that the controllable ultrasonic output waveform comprises the following steps:
s1, the control board controls the phase detection circuit to detect the phase of the input alternating current;
s2, determining the start and stop positions of the ultrasonic frequency sweep;
s3, determining the width of the frequency sweep and the frequency point number of the frequency sweep;
s4, determining the position distribution of each frequency point in each period of the ultrasonic output waveform;
and S5, the control board controls the ultrasonic generator to output waveforms.
2. An ultrasonic cleaning machine with controllable ultrasonic output waveform according to claim 1, wherein the phase detection circuit comprises a first rectifier bridge, a first optical coupler, a first resistor, a second resistor, a third resistor, a fourth resistor and a first capacitor; the commercial power passes through 100 hz's of first rectifier bridge output alternating current, passes through again first opto-coupler first resistance the second resistance third resistance, fourth resistance and first electric capacity transmit extremely the control panel.
3. An ultrasonic cleaning machine with controllable ultrasonic output waveform according to claim 1, characterized in that the ultrasonic generating circuit comprises a first ultrasonic generating circuit and a second ultrasonic generating circuit, and the first ultrasonic generating circuit and the second ultrasonic generating circuit are both provided with an ultrasonic driving circuit and a power amplifying circuit; the ultrasonic waves are driven to generate through the ultrasonic driving circuit, and the power of the ultrasonic waves is amplified through the power amplifying circuit.
4. An ultrasonic cleaning machine with controllable ultrasonic output waveform as claimed in claim 1, wherein the alternating current in S1 is 220V alternating current.
5. An ultrasonic cleaning machine with controllable ultrasonic output waveform according to claim 1, characterized in that the ultrasonic cleaning machine further comprises a main body and a transducer; a cleaning tank is arranged in the main body, and the transducer is arranged on the main body; the ultrasonic generator is connected with the energy converter.
6. An ultrasonic cleaning machine according to claim 4, wherein the transducer converts the ultrasonic waves from the ultrasonic generator into mechanical vibrations.
7. An ultrasonic cleaning machine according to claim 5, wherein the mechanical vibration drives micro-bubbles of the liquid in the cleaning tank to vibrate, so as to destroy the adsorption of dirt on the surface of the cleaning member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111132844.8A CN113787050B (en) | 2021-09-27 | 2021-09-27 | Ultrasonic cleaner with controllable ultrasonic output waveform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111132844.8A CN113787050B (en) | 2021-09-27 | 2021-09-27 | Ultrasonic cleaner with controllable ultrasonic output waveform |
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| Publication Number | Publication Date |
|---|---|
| CN113787050A true CN113787050A (en) | 2021-12-14 |
| CN113787050B CN113787050B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111132844.8A Active CN113787050B (en) | 2021-09-27 | 2021-09-27 | Ultrasonic cleaner with controllable ultrasonic output waveform |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5637947A (en) * | 1994-01-05 | 1997-06-10 | Technologies Gmbh & Co. Branson Ultraschall Niederlassung Der Emerson | Method and apparatus for operating a generator supplying a high-frequency power to an ultrasonic transducer |
| KR970060883U (en) * | 1997-09-20 | 1997-12-10 | 이흥구 | Oscillator for ultrasonic cleaner |
| JP2001149863A (en) * | 1999-11-29 | 2001-06-05 | Matsushita Electric Ind Co Ltd | Device and method for generating ultrasonic vibration, and bump jointing device |
| CN1759471A (en) * | 2003-02-06 | 2006-04-12 | 兰姆研究有限公司 | Improved megasonic cleaning efficiency using auto- tuning of an RF generator at constant maximum efficiency |
| CN201063054Y (en) * | 2007-06-27 | 2008-05-21 | 临安科星电子有限公司 | Isolated circuit for detecting power supply phase |
| CN201742308U (en) * | 2010-01-06 | 2011-02-09 | 必能信超声(上海)有限公司 | Ultrasonic cleaning machine circuit |
| CN202356278U (en) * | 2011-12-15 | 2012-08-01 | 广州市美锐美容健康设备实业有限公司 | Automatic frequency-sweeping intelligent ultrasonic generator |
| CN103151949A (en) * | 2013-03-18 | 2013-06-12 | 无锡南方声学工程有限公司 | Power supply of ultrasonic cleaning machine |
| CN103567134A (en) * | 2013-11-11 | 2014-02-12 | 河海大学常州校区 | Matching device and matching method for ultrasonic power supply |
| CN204376726U (en) * | 2014-12-25 | 2015-06-03 | 江阴鼎天科技有限公司 | Ultrasonic Intelligent cleaning machine power-supply system |
| CN109883537A (en) * | 2019-02-28 | 2019-06-14 | 重庆西山科技股份有限公司 | The ultrasonic transducer and its method of resonance frequency are determined based on DC current |
-
2021
- 2021-09-27 CN CN202111132844.8A patent/CN113787050B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5637947A (en) * | 1994-01-05 | 1997-06-10 | Technologies Gmbh & Co. Branson Ultraschall Niederlassung Der Emerson | Method and apparatus for operating a generator supplying a high-frequency power to an ultrasonic transducer |
| KR970060883U (en) * | 1997-09-20 | 1997-12-10 | 이흥구 | Oscillator for ultrasonic cleaner |
| JP2001149863A (en) * | 1999-11-29 | 2001-06-05 | Matsushita Electric Ind Co Ltd | Device and method for generating ultrasonic vibration, and bump jointing device |
| CN1759471A (en) * | 2003-02-06 | 2006-04-12 | 兰姆研究有限公司 | Improved megasonic cleaning efficiency using auto- tuning of an RF generator at constant maximum efficiency |
| CN201063054Y (en) * | 2007-06-27 | 2008-05-21 | 临安科星电子有限公司 | Isolated circuit for detecting power supply phase |
| CN201742308U (en) * | 2010-01-06 | 2011-02-09 | 必能信超声(上海)有限公司 | Ultrasonic cleaning machine circuit |
| CN202356278U (en) * | 2011-12-15 | 2012-08-01 | 广州市美锐美容健康设备实业有限公司 | Automatic frequency-sweeping intelligent ultrasonic generator |
| CN103151949A (en) * | 2013-03-18 | 2013-06-12 | 无锡南方声学工程有限公司 | Power supply of ultrasonic cleaning machine |
| CN103567134A (en) * | 2013-11-11 | 2014-02-12 | 河海大学常州校区 | Matching device and matching method for ultrasonic power supply |
| CN204376726U (en) * | 2014-12-25 | 2015-06-03 | 江阴鼎天科技有限公司 | Ultrasonic Intelligent cleaning machine power-supply system |
| CN109883537A (en) * | 2019-02-28 | 2019-06-14 | 重庆西山科技股份有限公司 | The ultrasonic transducer and its method of resonance frequency are determined based on DC current |
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| CN113787050B (en) | 2023-08-18 |
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