CN106269694B - Variable ratio frequency changer portable supersonic washer - Google Patents
Variable ratio frequency changer portable supersonic washer Download PDFInfo
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- CN106269694B CN106269694B CN201610803050.2A CN201610803050A CN106269694B CN 106269694 B CN106269694 B CN 106269694B CN 201610803050 A CN201610803050 A CN 201610803050A CN 106269694 B CN106269694 B CN 106269694B
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- piezoelectric ceramic
- ceramic piece
- vibrating body
- cleaning
- positive electrode
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- 238000004140 cleaning Methods 0.000 claims abstract description 44
- 239000000919 ceramic Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005284 excitation Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004506 ultrasonic cleaning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 241000222712 Kinetoplastida Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- B06B1/0603—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 using a piezoelectric bender, e.g. bimorph
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A kind of variable ratio frequency changer portable supersonic washer, it includes vibrating body（1）With the first piezoelectric ceramic piece（2）, the second piezoelectric ceramic piece（4）, it is characterized in that the vibrating body（1）, the first piezoelectric ceramic piece（2）, positive electrode（3）, the second piezoelectric ceramic piece（4）, negative electrode（5）And pedestal（6）Pass through pretightning force screw（10）Connect into an overall structure；Circuit board（8）The high-frequency signal of different frequency can be generated and be applied to positive electrode（3）And negative electrode（5）, so as to drive the first piezoelectric ceramic piece（2）With the second piezoelectric ceramic piece（4）Flex effect is generated simultaneously, and excitation is immersed in the vibrating body in cleaning solution（1）Resonance is generated, makes vibrating body（1）It is operated under corresponding deformation mode, outwards discharges different ultrasonic waves, the liquid near ultrasonic exciting generates cavitation, and the microbubble crushed after cavitation generates enough energy and washes the dirt for impregnating target surface in a liquid.The present invention is small, easy to carry, has filled up the market vacancy.
Description
Technical field
The present invention relates to a kind of cleaning technique, especially a kind of ultrasonic cleaning technology is specifically a kind of to utilize pressure
Electroceramics high frequency distortions generate the variable ratio frequency changer portable supersonic washer of excusing from death ripple.
Background technology
Advantage-cleaning performance that ultrasonic cleaning has other conventional clean modes incomparable is good, high uniformity, height
Efficiency, low cost, low labor intensity and environmental-friendly.Traditional fruit-vegetable cleaner is generally using fountain, Brush type, drum-type
Etc. structure types, wherein spray type cleaning machine water consumption is big, to complex-shaped cleaning materials exist cleaning blind area, clean effect is not
It is good;Brush type and rotary drum washer are only applicable to the cleaning of tubers fruits and vegetables, to leafy vegetable and fresh and tender fruit bruising compared with
Greatly.Many deficiencies such as more than conventional clean machine is there are bad adaptability, effect is poor, high energy consumption, function are single, it is impossible to be used for fruit
Vegetable, tableware, and can not sterilize, deteriorating pesticide residue.Corresponding ultrasonic cleaning is good, high consistent with cleaning performance
Property, high efficiency, low cost, low labor intensity and advantages of environment protection.
When ultrasonic wave is propagated in a liquid, due to nonlinear interaction, acoustic cavitation can be generated.It is closed suddenly in cavitation bubble
When the shock wave that sends thousands of a atmospheric pressures can be generated around it, on the one hand the direct repeated stock to pollution layer destroys
On the other hand the absorption of dirt and cleaning parts surface can also cause the destruction of crud layer and depart from cleaning parts surface and make them
It is distributed in cleaning solution.The vibration of bubble can also clean the surface of solids.Bubble, which " can also pierce " in crack to do, to be vibrated,
Dirt is made to come off.For there is oil dirt, due to ultrasonic cavitation, two kinds of liquid disperse rapidly at interface and are emulsified,
When solids are wrapped up in by greasy dirt and are adhered to cleaning parts surface, oil is emulsified, and solids come off.Cavitation bubble exists
In vibration processes liquid can be made to generate circulation in itself, i.e., so-called acoustic streaming.It can make oscillating bubble surface there is very high speed ladder
Degree and viscous stress, promote the destruction of cleaning parts surface dirt and come off, ultrasonic cavitation is produced on solid and liquid surface
Raw high-speed micro-jet can remove or weaken boundary layer, and corrosion solids surface increases stirring action, accelerate soluble
The cleaning action of chemical is strengthened in the dissolving of dirt.
The content of the invention
It is big the purpose of the present invention is being directed to existing ultrasonic cleaning device volume, and ultrasonic wave needs guiding through cleaning case entrance
Big there are ultrasonic losses in cleaning solution, supersonic frequency is fixed, it is impossible to using different mode be directed to according to cleaning object
Property cleaning the problem of, design it is a kind of it is small, easy to carry, can be directly placed into all kinds of cleaning containers to different cleaning objects
The variable ratio frequency changer portable supersonic washer cleaned using different cleaning mode.
The technical scheme is that：
A kind of variable ratio frequency changer portable supersonic washer, it includes vibrating body 1, the first piezoelectric ceramic piece 2, positive electrode 3, the
Two piezoelectric ceramic pieces 4, negative electrode 5, pedestal 6, power pack 7, circuit board 8, rechargeable battery 9 and pretightning force screw 10, it is characterized in that
Vibrating body 1, the first piezoelectric ceramic piece 2, positive electrode 3, the second piezoelectric ceramic piece 4, negative electrode 5 and the pedestal 6 passes through preload
Power screw 10, which connects into one, Light deformation can occur simultaneously and generate the overall structure of ultrasonic vibration, 2 He of the first piezoelectric ceramic piece
Positive electrode 3 is electrically connected, and the second piezoelectric ceramic piece 4 and negative electrode 5 are electrically connected；Power pack 7 is connected with pedestal 6, rechargeable battery
9th, circuit board 8 is mounted in power pack 7；Circuit board 8 can generate the high-frequency signal of different frequency and be applied to positive electrode 3 and negative electricity
Pole 5, so as to drive the first piezoelectric ceramic piece 2 and the second piezoelectric ceramic piece 4 while generate flex effect, excitation is immersed in cleaning solution
In vibrating body 1 generate resonance, vibrating body 1 is made to be operated under corresponding deformation mode, outwards discharges different ultrasonic waves, ultrasound
Liquid near wave excitation generates cavitation, and the microbubble crushed after cavitation, which generates enough energy, to be impregnated in a liquid
The dirt of target surface washes.
The vibrating body 1 is made of spherical part and columnar part, spherical cap portion be located at vibrating body not with the first piezoelectricity
On one end that potsherd 2 is in contact, it is equipped on the surface of columnar part using mode deformation is generated, improves the annular of cleaning performance
Dentalation.
The tooth form of the dentalation is one kind in rectangular teeth, arc-shaped gear, involute tooth, stepped tooth or triangle
Or several combination.
The profile diameter of the columnar part of the vibrating body is 35 millimeters, and spherical part is hemisphere, and sphere diameter is 10 millis
Rice, dentalation are rectangular teeth, and quantity is 16, are evenly arranged in that cylinder axis is upward, and the facewidth of rectangular teeth is 1 millimeter, between cog
Away from for 1 millimeter, a height of 2.5 millimeters of tooth.
Vibrating body 1 generates different modal resonances under the drive signal of 40Khz, 70Khz and 90Khz, so as to generate
Tri- kinds of ultrasonic waves of 40Khz, 70Khz and 90Khz, these three ultrasonic waves respectively clean different cleaning targets, can improve
Cleaning efficiency and cleaning performance；The mode generated under 40Khz drive signals be integral telescopic mode, i.e., inner cylinder structure with
The retracted position of external dentalation is consistent, that is, generates overall elongated or compression；The mode generated under 70Khz drive signals
When being compressed for inner cylinder, external teeth directional ball heads one side is routed up, and outside teeth directional other side is shunk when inner cylinder extends；
When the mode generated under 90Khz drive signals is compressed for inner cylinder, external teeth is divided into two parts from centre and is turned over respectively to both ends
Go out, when inner cylinder extends, external teeth is simultaneously from both ends to middle shrinkage.
Beneficial effects of the present invention：
The portable supersonic washer of the variable frequency of the present invention have it is compact-sized, it is small, without cleaning case,
It is put into arbitrary sink to open to switch and can generate ultrasonic wave；The signal frequency of power supply generation can be adjusted by adjusting switch simultaneously
Rate so as to change the vibration frequency of washer, and then changes the ultrasonic frequency that washer generates.
The dilatation for the dilatation excited vibrational body that the present invention passes through piezoelectric ceramic piece so that washer generates ultrasound
Ripple in a liquid cleans target.Mainly realize：
1st, piezoelectric ceramic piece directly drives vibrating body vibration, generates ultrasonic wave in a liquid, realizes ultrasonic cleaner
Miniaturization.
2nd, the dentation on vibrating body surface and groove structure contribute to the generation of ultrasonic wave in a liquid and to surrounding liquids
Ultrasonic cavitation.
3rd, by changing the driving frequency of circuit board so that vibrating body generates the mode of oscillation of different frequency, so as to generate
The ultrasonic wave of different frequency can be cleaned for different targets, improve cleaning performance.
The portable outstanding washer of the present invention also has the characteristics that compared with conventional ultrasonic wave cleaning machine：
1st, although traditional supersonic wave cleaning machine employs ultrasonic transducer, but is that ultrasonic transducer is placed on water storage
Slot side or bottom.The ultrasonic wave that ultrasonic transducer vibration generates is conducted into liquid by babinet and then target carried out clear
It washes, ultrasonic wave has attenuation in such conductive process, and cleaning efficiency can decline.And the portable supersonic washer of the present invention
It is directly to place energy converter in a liquid, the ultrasonic wave that energy converter generates after energization directly conducts in a liquid, and generates sky
Change acts on, and then cleans target.
2nd, traditional ultrasonic cleaner is generally adopted by the ultrasonic wave of fixed frequency object is cleaned, and this
The washer of invention is then the structure type that make use of vibrating body special, is respectively 40Khz, 70Khz and 90Khz or so in frequency
Drive signal under generate different modal resonances, so as to generate tri- kinds of ultrasonic waves of 40Khz, 70Khz and 90Khz, these three are super
Sound wave can respectively clean different cleaning targets, improve cleaning efficiency and cleaning performance.
3rd, vibrating body front end of the invention is circular arc type structure, reduces resistance when vibrating body vibrates in a liquid, together
When around have dentalation, which not only increases the contact area of liquid and vibrating body, while ensure that vibrating body exists
The corresponding mode of 40Khz, 70Khz and 90Khz is generated under the drive signal of 40Khz, 70Khz and 90Khz or so.
The present invention is small, easy to carry, and cleaning immediately can be realized in various containers, has filled up such product in the market
Blank.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the dimensional structure schematic diagram of the vibrating body of the embodiment of the present invention.
Fig. 3 is schematic diagram under vibrating body compressive state under the driving frequency of 40Khz or so.
Fig. 4 is schematic diagram under vibrating body elongation state under the driving frequency of 40Khz or so.
Fig. 5 is schematic diagram under vibrating body compressive state under the driving frequency of 70Khz or so.
Fig. 6 is schematic diagram under vibrating body elongation state under the driving frequency of 70Khz or so.
Fig. 7 is schematic diagram under vibrating body compressive state under the driving frequency of 90Khz or so.
Fig. 8 is schematic diagram under vibrating body compressive state under the driving frequency of 90Khz or so.
Fig. 9 is the portable supersonic washer operating diagram of variable frequency.
Figure 10 is the portable supersonic washer work flow diagram of variable frequency.
In figure：1st, vibrating body, the 2, first piezoelectric ceramic piece, 3, positive electrode, the 4, second piezoelectric ceramic piece, 5, negative electrode, 6,
Pedestal, 7, power pack, 8, circuit board, 9, rechargeable battery, 10, pretightning force screw.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As Figure 1-10 shows.
A kind of variable ratio frequency changer portable supersonic washer, it includes vibrating body 1, the first piezoelectric ceramic piece 2, positive electrode 3, the
Two piezoelectric ceramic pieces 4, negative electrode 5, pedestal 6, power pack 7, circuit board 8, rechargeable battery 9 and pretightning force screw 10, described shakes
Kinetoplast 1, the first piezoelectric ceramic piece 2, positive electrode 3, the second piezoelectric ceramic piece 4, negative electrode 5 and pedestal 6 pass through pretightning force screw 10
Connecting into one Light deformation can occur simultaneously and generate the overall structure of ultrasonic vibration, 3 electricity of the first piezoelectric ceramic piece 2 and positive electrode
Gas connects, and the second piezoelectric ceramic piece 4 and negative electrode 5 are electrically connected；Power pack 7 is connected with pedestal 6, rechargeable battery 9, circuit board 8
In power pack 7, as shown in Figure 1, the vibrating body 1 is made of spherical part and columnar part, spherical cap portion is located at
On one end that vibrating body is not in contact with the first piezoelectric ceramic piece 2, it is equipped on the surface of columnar part and is deformed using generation mode,
Improve the annular dentalation of cleaning performance, the tooth form of the dentalation can be rectangular teeth, arc-shaped gear, involute tooth,
The combination of one or more of stepped tooth or triangle, wherein it is preferred that rectangle toothing, Fig. 2 are the specific knots of a vibrating body
Structure scale diagrams, in Fig. 2, the columnar part of vibrating body 1 is cylinder, and the profile diameter of cylinder is 35 millimeters, spherical part
It is divided into hemisphere, sphere diameter is 10 millimeters, and dentalation is rectangular teeth, and quantity is 16, and it is upward to be evenly arranged in cylinder axis, rectangle
The facewidth of tooth is 1 millimeter, and space width is 1 millimeter, a height of 2.5 millimeters of tooth.The circuit board 8 of the present invention can generate the height of different frequency
Frequency signal is simultaneously applied to positive electrode 3 and negative electrode 5, so as to drive the first piezoelectric ceramic piece 2 and the second piezoelectric ceramic piece 4 while produce
Raw flex effect, the vibrating body 1 that excitation is immersed in cleaning solution generate resonance, vibrating body 1 are made to be operated in corresponding deformation mode
Under, different ultrasonic waves is outwards discharged, as shown in figure 9, the liquid near ultrasonic exciting generates cavitation, is crushed after cavitation
Microbubble generate enough energy and wash the dirt for impregnating target surface in a liquid.Whole work process is as schemed
Shown in 10.Specifically, vibrating body 1 can generate different modal resonances under the drive signal of 40Khz, 70Khz and 90Khz,
So as to generate tri- kinds of ultrasonic waves of 40Khz, 70Khz and 90Khz, these three ultrasonic waves respectively carry out different cleaning targets clear
It washes, cleaning efficiency and cleaning performance can be improved.As shown in Figure 3,4, the mode generated under 40Khz drive signals is integral telescopic
Mode, i.e. inner cylinder structure are consistent with the retracted position of external dentalation, i.e. generation overall elongated or compression, while to
The ultrasonic wave that outer release frequency is 40Khz or so.As shown in Figure 5,6, the mode generated under 70Khz drive signals is inner circular
When column compresses, external teeth directional ball heads one side is routed up, and outside teeth directional other side is shunk when inner cylinder extends, while is outwards released
Put ultrasonic wave of the frequency for 70Khz or so.As shown in Figure 7,8, the mode generated under 90Khz drive signals is inner cylinder pressure
During contracting, external teeth is divided into two parts from centre and is routed up respectively to both ends, and when inner cylinder extends, external teeth is simultaneously from both ends in
Between shrink, while outwards release frequency for 90Khz or so ultrasonic wave.
Part that the present invention does not relate to is same as the prior art or the prior art can be used is realized.
Claims (3)
1. a kind of variable ratio frequency changer portable supersonic washer, it includes vibrating body（1）, the first piezoelectric ceramic piece（2）, positive electrode
（3）, the second piezoelectric ceramic piece（4）, negative electrode（5）, pedestal（6）, power pack（7）, circuit board（8）, rechargeable battery（9）And preload
Power screw（10）, it is characterized in that the vibrating body（1）, the first piezoelectric ceramic piece（2）, positive electrode（3）, the second piezoelectric ceramic piece
（4）, negative electrode（5）And pedestal（6）Pass through pretightning force screw（10）Connecting into one Light deformation can occur simultaneously and generate ultrasound
The overall structure of vibration, the first piezoelectric ceramic piece（2）And positive electrode（3）Electrical connection, the second piezoelectric ceramic piece（4）And negative electrode
（5）Electrical connection；Power pack（7）With pedestal（6）It is connected, rechargeable battery（9）, circuit board（8）Mounted on power pack（7）In；Electricity
Road plate（8）The high-frequency signal of different frequency can be generated and be applied to positive electrode（3）And negative electrode（5）, so as to drive the first piezoelectricity
Potsherd（2）With the second piezoelectric ceramic piece（4）Flex effect is generated simultaneously, and excitation is immersed in the vibrating body in cleaning solution（1）Production
Raw resonance, makes vibrating body（1）It is operated under corresponding deformation mode, outwards discharges different ultrasonic waves, near ultrasonic exciting
Liquid generate cavitation, the microbubble crushed after cavitation, which generates enough energy, will impregnate target surface in a liquid
Dirt wash；The vibrating body（1）It is made of spherical part and columnar part, spherical cap portion is located at vibrating body not with
One piezoelectric ceramic piece（2）On the one end being in contact, it is equipped on the surface of columnar part using mode deformation is generated, improves cleaning effect
The annular dentalation of fruit；Vibrating body（1）Different modal resonances is generated under the drive signal of 40Khz, 70Khz and 90Khz,
So as to generate tri- kinds of ultrasonic waves of 40Khz, 70Khz and 90Khz, these three ultrasonic waves respectively carry out different cleaning targets clear
It washes, cleaning efficiency and cleaning performance can be improved；The mode generated under 40Khz drive signals is integral telescopic mode, i.e., internal
Cylindrical structure is consistent with the retracted position of external dentalation, that is, generates overall elongated or compression；Under 70Khz drive signals
The mode of generation for inner cylinder compress when, external teeth directional ball heads one side is routed up, inner cylinder extend when outside teeth directional in addition
It shrinks one side；When the mode generated under 90Khz drive signals is compressed for inner cylinder, external teeth is divided into two parts point from centre
It is not routed up to both ends, when inner cylinder extends, external teeth is simultaneously from both ends to middle shrinkage.
2. variable ratio frequency changer portable supersonic washer according to claim 1, it is characterized in that the tooth of the dentalation
Shape is the combination of one or more of rectangular teeth, arc-shaped gear, involute tooth, stepped tooth or triangle.
3. variable ratio frequency changer portable supersonic washer according to claim 1, it is characterized in that the cylinder of the vibrating body
Partial profile diameter is 35 millimeters, and spherical part is hemisphere, and sphere diameter is 10 millimeters, and dentalation is rectangular teeth, and quantity is
16, it is evenly arranged in that cylinder axis is upward, the facewidth of rectangular teeth is 1 millimeter, and space width is 1 millimeter, a height of 2.5 millimeters of tooth.
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| CN201610803050.2A CN106269694B (en) | 2016-09-05 | 2016-09-05 | Variable ratio frequency changer portable supersonic washer |
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| CN201610803050.2A CN106269694B (en) | 2016-09-05 | 2016-09-05 | Variable ratio frequency changer portable supersonic washer |
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| CN106269694B true CN106269694B (en) | 2018-06-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108325938A (en) * | 2018-05-15 | 2018-07-27 | 汪智静 | A kind of battery powered portable supersonic cleaning machine |
| CN108771505A (en) * | 2018-07-03 | 2018-11-09 | 徐剑 | A kind of Pediluvium apparatus with ultrasonic cleaning equipment |
| CN109277364A (en) * | 2018-09-07 | 2019-01-29 | 杭州瑞利科技有限公司 | A kind of ball crown type Embedded Ultrasonic energy converter |
| CN109405630B (en) * | 2018-10-18 | 2020-01-14 | 珠海格力电器股份有限公司 | Water-cooled heat exchanger and air conditioning system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100346492B1 (en) * | 1999-05-03 | 2002-07-26 | 주식회사 일산썬텍 | Bolted langevin ultrasonic transducer with vertical slits |
| CN100443036C (en) * | 2003-02-25 | 2008-12-17 | 松下电工株式会社 | Ultrasonic washing device |
| CN2751913Y (en) * | 2004-10-12 | 2006-01-18 | 宋玉霞 | Ultrasonic wave transducer |
| CN201135950Y (en) * | 2007-12-25 | 2008-10-22 | 昆山攀特电陶科技有限公司 | Sandwich type piezoelectric ceramics ultrasound atomizer plate |
| CN203061410U (en) * | 2013-01-17 | 2013-07-17 | 辽宁工业大学 | Double-bending traveling wave ultrasonic polishing oscillator |
| CN103341439B (en) * | 2013-07-24 | 2015-06-24 | 苏州科技学院 | Large-power air coupling ultrasonic vibration transducer |
| CN105562397B (en) * | 2016-02-18 | 2018-11-20 | 深圳市智水小荷技术有限公司 | Combination frequency ultrasonic cleaning equipment |
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