CN102601033A - Ultrasonic full-wave transducer and vibration source in ultrasonic transducer - Google Patents
Ultrasonic full-wave transducer and vibration source in ultrasonic transducer Download PDFInfo
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- CN102601033A CN102601033A CN2012100857665A CN201210085766A CN102601033A CN 102601033 A CN102601033 A CN 102601033A CN 2012100857665 A CN2012100857665 A CN 2012100857665A CN 201210085766 A CN201210085766 A CN 201210085766A CN 102601033 A CN102601033 A CN 102601033A
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Abstract
The invention discloses a vibration source in an ultrasonic transducer, which can increase power and comprises an even number of piezoelectric ceramic groups linearly arranged at intervals. Each piezoelectric ceramic group comprises an even number of piezoelectric ceramic rings, the number of the piezoelectric ceramic rings in each piezoelectric ceramic group is identical to that of the piezoelectric ceramic groups, in each piezoelectric ceramic group, end surfaces with identical poles of the adjacent piezoelectric ceramic rings cling together, the identical poles of all the piezoelectric ceramic rings are connected together in parallel, so that a positive pole and a negative pole of each piezoelectric ceramic group are formed, opposite poles of each two adjacent piezoelectric ceramic groups are connected, and accordingly a positive pole and a negative pole of the vibration source are formed. The invention further discloses a full-wave transducer comprising the vibration source with the structure. An ultrasonic generator comprising the full-wave transducer can be widely applied to the fields of welding, cutting, crushing, spraying, smelting, surgery, grinding, cleaning and the like.
Description
Technical field
The present invention relates to ultrasonic generator, refer more particularly to the transducer in the ultrasonic generator.
Background technology
At present, ultrasonic wave has been widely used in fields such as welding, cutting, pulverizing, spraying, refine, operation, grinding and cleaning.Traditional transducer; Its structure comprises: device body and two ceramic components are not fixed on the device head and the device tail of device body both sides; In two piezoelectric ceramics groups; One is main piezoelectric ceramics group, and another is secondary piezoelectric ceramics group, and the quantity of the piezoelectric ceramic ring in the secondary piezoelectric ceramics group is than lacking in the main piezoelectric ceramics group.By the vibration source that above-mentioned major and minor piezoelectric ceramics group constitutes, its power output is not high, the transducer that adopts this vibration source to make, and power output is all less; And the energy conversion efficiency of this transducer is not high, is no more than 76% usually.
Summary of the invention
Technical problem to be solved by this invention is: the vibration source in a kind of ultrasonic transducer that can improve power is provided.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the vibration source in the ultrasonic transducer comprises: even number is the piezoelectric ceramics group of straight line at interval; It is characterized in that: said piezoelectric ceramics group contains the piezoelectric ceramic ring of same piece number; And the sheet number is an even number, and in each piezoelectric ceramics group, the end face of the identical polar of adjacent piezoelectric ceramic ring abuts in together; The identical polar of all piezoelectric ceramic rings connects together; Form the positive and negative electrode of piezoelectric ceramics group, the opposite polarity of adjacent in twos piezoelectric ceramics group links to each other, thereby forms the positive and negative electrode of said vibration source.
Further technical problem to be solved by this invention is: a kind of ultrasonic wave all-wave transducer that can improve energy conversion efficiency is provided.
For solving above-mentioned further technical problem; The technical scheme that the present invention adopts is: ultrasonic wave all-wave transducer; Comprise: vibration source and vibrating body, described vibrating body comprises: device body and the device head and the device tail that are positioned at device body both sides, described vibration source comprise that the piezoelectric ceramics group of a pair of structure according to the invention is the first piezoelectric ceramics group and the second piezoelectric ceramics group; The first piezoelectric ceramics group is arranged between device body and the device tail, and the second piezoelectric ceramics group is arranged between device body and the device head; Described device body, device head and device tail are cylinder; The external diameter of its diameter and piezoelectric ceramic ring all≤the ultrasonic wave wavelength 1/4th; The assembly of the second piezoelectric ceramics group and device body is corresponding to 1/2nd wavelength; The assembly of the first piezoelectric ceramics group and its Outboard Sections is corresponding to quarter-wave, and the device head is corresponding to quarter-wave.
Said device head is made up of thinner emission part outside being positioned at inboard thicker connecting portion and being positioned at, and the cross-sectional area of emission part is 1: 1.5～2 with the ratio of the cross-sectional area of connecting portion.
Described all-wave transducer also includes sealing drum; Described device body, device tail and two piezoelectric ceramics groups are sleeved in the sealing drum; The periphery wall of said device head is provided with the stair-stepping installation base that matches with sealing drum, is provided with sealing ring between installation base and the sealing drum.
The invention has the beneficial effects as follows: vibration source of the present invention; Because each piezoelectric ceramics group all is provided with the piezoelectric ceramic ring of same piece number, in each piezoelectric ceramics group, the end face of the identical polar of adjacent piezoelectric ceramic ring abuts in together; The identical polar phase of all piezoelectric ceramic rings also connects; Form the positive and negative electrode of piezoelectric ceramics group, the opposite polarity of adjacent in twos piezoelectric ceramics group links to each other, thereby forms the positive and negative electrode of said vibration source; Two piezoelectric ceramics are combined as the ultrasonic wave vibration source are provided, and have improved the power output of vibration source.Transducer of the present invention is owing to adopted the vibration source of said structure; And with the assembly of the second piezoelectric ceramics group and device body corresponding to 1/2nd wavelength; The assembly of the first piezoelectric ceramics group and its Outboard Sections is corresponding to quarter-wave, and the device head is corresponding to quarter-wave, thereby forms an all-wave transducer; Improved conversion efficiency greatly, conversion efficiency can reach more than 95% usually; In addition,, increased hyperacoustic amplitude, improved hyperacoustic vibration efficiency because the cross-sectional area of the emission part of device head is littler than the cross-sectional area of connecting portion; In addition, two piezoelectric ceramics groups are sealed through sealing drum and sealing ring, thus with transducer application of the present invention to adverse circumstances such as sewage, thereby the application scenario of having widened said full-wave type transducer.
Description of drawings
Fig. 1 is a broken section structural representation of the present invention.
Fig. 2 is the electric connection structure sketch map of two piezoelectric ceramics groups among Fig. 1.
Fig. 3 is the structural representation that the present invention has sealing drum.
Fig. 4 is the sectional structure sketch map of Fig. 3.
Among Fig. 1 to Fig. 4: 1, device body, 101, first screwed hole, 102, second screwed hole, 2, the device tail, 3, the device head, 31, installation base; 32, spline boss, 33, screwed hole, 4, the first piezoelectric ceramics group, 41, first piezoelectric ceramic ring, 42, second piezoelectric ceramic ring; 43, the 3rd piezoelectric ceramic ring, the 44, the 4th piezoelectric ceramic ring, 5, the second piezoelectric ceramics group, the 51, the 5th piezoelectric ceramic ring, the 52, the 6th piezoelectric ceramic ring; 53, the 7th piezoelectric ceramic ring, the 54, the 8th piezoelectric ceramic ring, 6, first bolt, 7, second bolt, 9, sealing drum; 11, the first positive lead-out wire, 12, the first negative lead-out wire, 13, the second positive lead-out wire, 14, the second negative lead-out wire, 15, end plate; 16, jump ring, 17, Internal baffle, 18, sealing ring, 19, outer baffle, 20, jump ring.
The specific embodiment
Like Fig. 1 and shown in Figure 4; A kind of ultrasonic wave all-wave transducer; Comprise: device body 1 and device head that is positioned at device body 1 both sides 3 and device tail 2, be provided with the first piezoelectric ceramics group 4 between device body 1 and the device tail 2, be provided with the second piezoelectric ceramics group 5 between device body 1 and the device head 3; Device body 1, the first piezoelectric ceramics group 4 and device tail 2 are fixed together through first bolt 6 of vizored and first screwed hole 101 that is opened on device body 1 corresponding end-faces; Device body 1, the second piezoelectric ceramics group 5 and device head 3 are fixed together through second bolt 7 and second screwed hole 102 and the screwed hole 33 of permeater head 3 that are opened on device body 1 corresponding end-faces, and the first piezoelectric ceramics group 4 and the second piezoelectric ceramics group 5 contain the piezoelectric ceramic ring of same piece number, and the sheet number is an even number; In the present embodiment; The first piezoelectric ceramics group 4 and the second piezoelectric ceramics group 5 all contain four piezoelectric ceramic rings, that is: the first piezoelectric ceramics group 4 contains first piezoelectric ceramic ring 41, second piezoelectric ceramic ring 42, the 3rd piezoelectric ceramic ring 43 and the 4th piezoelectric ceramic ring 44, the second piezoelectric ceramics groups 5 and contains the 5th piezoelectric ceramic ring 51, the 6th piezoelectric ceramic ring 52, the 7th piezoelectric ceramic ring 53 and the 8th piezoelectric ceramic ring 54; As shown in Figure 2; In each piezoelectric ceramics group, the end face of the identical polar of adjacent piezoelectric ceramic ring abuts in together, and the identical polar of all piezoelectric ceramic rings connects together; Form the positive and negative electrode of piezoelectric ceramics group; The opposite polarity of adjacent in twos piezoelectric ceramics group links to each other, thereby forms the positive and negative electrode of said vibration source, that is: in the first piezoelectric ceramics group 4; The anodal end face of first piezoelectric ceramic ring 41 and second piezoelectric ceramic ring 42 abuts in together; Second piezoelectric ceramic ring 42 abuts in the negative pole end face of the 3rd piezoelectric ceramic ring 43, and the anodal end face of the 3rd piezoelectric ceramic ring 43 and the 4th piezoelectric ceramic ring 44 abuts in together, and the positive pole of first piezoelectric ceramic ring 41, second piezoelectric ceramic ring 42, the 3rd piezoelectric ceramic ring 43 and the 4th piezoelectric ceramic ring 44 is connected together through the first positive lead-out wire 11; The negative pole of first piezoelectric ceramic ring 41, second piezoelectric ceramic ring 42, the 3rd piezoelectric ceramic ring 43 and the 4th piezoelectric ceramic ring 44 is connected together through the first negative lead-out wire 12; In the second piezoelectric ceramics group 5, the anodal end face of the 5th piezoelectric ceramic ring 51 and the 6th piezoelectric ceramic ring 52 abuts in together, and the 6th piezoelectric ceramic ring 52 abuts in the negative pole end face of the 7th piezoelectric ceramic ring 53; The anodal end face of the 7th piezoelectric ceramic ring 53 and the 8th piezoelectric ceramic ring 54 abuts in together; And, the positive pole of the 5th piezoelectric ceramic ring 51, the 6th piezoelectric ceramic ring 52, the 7th piezoelectric ceramic ring 53 and the 8th piezoelectric ceramic ring 54 is connected together through the second positive lead-out wire 13, the negative pole of the 5th piezoelectric ceramic ring 51, the 6th piezoelectric ceramic ring 52, the 7th piezoelectric ceramic ring 53 and the 8th piezoelectric ceramic ring 54 is connected together through the second negative lead-out wire 14; The first positive lead-out wire 11 links to each other with the second negative lead-out wire 14, and the first negative lead-out wire 12 links to each other with the second positive lead-out wire 13; Described device body 1, device head 3 and device tail 2 are cylinder; The external diameter of its diameter and piezoelectric ceramic ring all≤the ultrasonic wave wavelength 1/4th; The assembly of the second piezoelectric ceramics group 5 and device body 1 is corresponding to 1/2nd wavelength; The assembly of the first piezoelectric ceramics group 4 and its Outboard Sections is corresponding to quarter-wave, and the Outboard Sections of the first piezoelectric ceramics group 4 described here is meant the shade part of the device tail 2 and first bolt 6, and device head 3 is corresponding to quarter-wave; In the present embodiment, said device head 3 is made up of thinner emission part outside being positioned at inboard thicker connecting portion and being positioned at, and the cross-sectional area of emission part is 1: 1.5～2 with the ratio of the cross-sectional area of connecting portion.
As shown in Figure 1, during actual fabrication, the material of determiner body 1, device head 3, device tail 2 and first bolt 6 and second bolt 7 at first; Suppose that the material of device body 1 is an aluminium,, the material of device head 3, device tail 2 is titanium alloy; The material of first bolt 6 and second bolt 7 is a steel, secondly, confirms frequency of ultrasonic; Suppose that frequency of ultrasonic is f, then, the sheet number of piezoelectric ceramic ring in the specification of selected piezoelectric ceramic ring and each the piezoelectric ceramics group; Like this, the height L1 of the first piezoelectric ceramics group 4 and the second piezoelectric ceramics group 5 and L5 have just confirmed, have been the transmission speed v1 ÷ f of ultrasonic wave in piezoelectric ceramics of f with frequency; Obtaining corresponding to frequency is the height h1 of piezoceramic material of wavelength X of the all-wave of ultrasonic wave of f, because L1=L5, therefore; L1 ÷ h1 just knows that the first piezoelectric ceramics group 4 and the second piezoelectric ceramics group 5 are equivalent to the ratio g1 of wavelength, is 1/2nd because the assembly of the second piezoelectric ceramics group 5 and device body 1 is equivalent to the ratio of wavelength X; Like this, deduct the ratio g1 that the second piezoelectric ceramics group 5 is equivalent to wavelength with 1/2nd, obtain the ratio g2 of device body 1 corresponding to wavelength; Be that the transmission speed v2 ÷ f of ultrasonic wave in aluminum material of f obtain corresponding to frequency with frequency be the height h2 of aluminum material of wavelength X of the all-wave of ultrasonic wave of f, h2 * g2 just can obtain the height L0 of device body 1; The calculating of the height L6 of device head 3 is fairly simple; Be that the transmission speed v3 ÷ f of ultrasonic wave in titanium alloy material of f obtain corresponding to frequency with frequency be the height h3 of titanium alloy material of wavelength X of the all-wave of ultrasonic wave of f, 1/4th of h3 is exactly the height L6 of device head 3; The height L2 of device head 3 and the calculating relative complex of L3 sum are a bit; At first; Be that the transmission speed v3 ÷ f of ultrasonic wave in steel material of f obtain corresponding to frequency with frequency be the height h4 of steel material of wavelength X of the all-wave of ultrasonic wave of f, the shade that obtains first bolt 6 with L4 ÷ h4 is equivalent to the ratio g3 of wavelength, deducts g1 and g3 obtains g4 with 1/4th; L2=g4 * h3, L3≤g3 * h3.
During practical application, usually device body 1, device tail 2 and the first piezoelectric ceramics group 4 and the second piezoelectric ceramics group 5 are sleeved on as in Fig. 3 and the sealing drum 9 shown in Figure 4, the periphery wall of said device head 3 is provided with the stair-stepping installation base 31 that matches with sealing drum 9; Sealing drum 9 inwalls are respectively arranged with installing hole at two ends; The installation base 31 of device head 3 is enclosed within the installing hole of sealing drum 9 corresponding sides, and, be respectively arranged with inside and outside baffle plate 17 and 19 in this installing hole in the both sides of installation base 31; Between installation base 31 and sealing drum 9, be provided with sealing ring 18; This installing hole offers the jump ring groove in the outside of outer baffle 19, is arranged with jump ring 20 in the jump ring groove, is provided with end plate 15 in the installing hole of sealing drum 9 opposite sides; Offer the jump ring groove in the outside of end plate 15; Be arranged with jump ring 16 in the jump ring groove, offer installing hole and retaining thread hole that two binding posts are installed in the end plate 15, wherein; A binding post is used to connect the first positive lead-out wire 11 and the second negative lead-out wire 14, and another binding post is used to connect the first negative lead-out wire 12 and the second positive lead-out wire 13.
Claims (4)
1. the vibration source in the ultrasonic transducer; Comprise: even number is the piezoelectric ceramics group of straight line at interval, and it is characterized in that: said piezoelectric ceramics group contains the piezoelectric ceramic ring of same piece number, and the sheet number is an even number; In each piezoelectric ceramics group; The end face of the identical polar of adjacent piezoelectric ceramic ring abuts in together, and the identical polar of all piezoelectric ceramic rings connects together, and forms the positive and negative electrode of piezoelectric ceramics group; The opposite polarity of adjacent in twos piezoelectric ceramics group links to each other, thereby forms the positive and negative electrode of said vibration source.
2. ultrasonic wave all-wave transducer; Comprise: vibration source and vibrating body; It is characterized in that: described vibrating body comprises: device body and the device head and the device tail that are positioned at device body both sides; Described vibration source comprises that a pair of piezoelectric ceramics group with the said structure of claim 1 is the first piezoelectric ceramics group and the second piezoelectric ceramics group, and the first piezoelectric ceramics group is arranged between device body and the device tail, and the second piezoelectric ceramics group is arranged between device body and the device head; Described device body, device head and device tail are cylinder; The external diameter of its diameter and piezoelectric ceramic ring all≤the ultrasonic wave wavelength 1/4th; The assembly of the second piezoelectric ceramics group and device body is corresponding to 1/2nd wavelength; The assembly of the first piezoelectric ceramics group and its Outboard Sections is corresponding to quarter-wave, and the device head is corresponding to quarter-wave.
3. all-wave transducer as claimed in claim 2 is characterized in that: said device head is made up of thinner emission part outside being positioned at inboard thicker connecting portion and being positioned at, and the cross-sectional area of emission part is 1: 1.5～2 with the ratio of the cross-sectional area of connecting portion.
4. like claim 2 or 3 described all-wave transducers; It is characterized in that: described all-wave transducer also includes sealing drum; Described device body, device tail and two piezoelectric ceramics groups are sleeved in the sealing drum; The periphery wall of said device head is provided with the stair-stepping installation base that matches with sealing drum, is provided with sealing ring between installation base and the sealing drum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210085766 CN102601033B (en) | 2012-03-28 | 2012-03-28 | Ultrasonic full-wave transducer and vibration source in ultrasonic transducer |
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| CN 201210085766 CN102601033B (en) | 2012-03-28 | 2012-03-28 | Ultrasonic full-wave transducer and vibration source in ultrasonic transducer |
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| CN102601033A true CN102601033A (en) | 2012-07-25 |
| CN102601033B CN102601033B (en) | 2013-12-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061711A (en) * | 2012-12-21 | 2013-04-24 | 张家港睿能科技有限公司 | Application of ultrasonic waves in oilwell unplugging |
| CN105964526A (en) * | 2016-06-24 | 2016-09-28 | 黑龙江兰德超声科技股份有限公司 | Ultrasonic transduction device |
| CN111730419A (en) * | 2020-07-07 | 2020-10-02 | 洛阳博智自动控制技术有限公司 | High and low frequency composite ultrasonic micro-engraving device and method based on amplitude modulation theory |
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| EP1074310A2 (en) * | 1999-08-05 | 2001-02-07 | KOREA INSTITUTE OF MACHINERY & MATERIALS | Wing type ultrasonic transducer |
| CN101121165A (en) * | 2007-09-04 | 2008-02-13 | 浙江师范大学 | Piezoelectric Ultrasonic Transducer |
| CN201482706U (en) * | 2009-09-10 | 2010-05-26 | 浙江师范大学 | A cylindrical ultrasonic transducer |
| CN102228886A (en) * | 2011-06-14 | 2011-11-02 | 桂林市啄木鸟医疗器械有限公司 | Waterproof ultrasonic transducer |
| CN202479121U (en) * | 2012-03-28 | 2012-10-10 | 张家港睿能科技有限公司 | Vibration source in ultrasonic transducer and ultrasonic full wave transducer |
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2012
- 2012-03-28 CN CN 201210085766 patent/CN102601033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074310A2 (en) * | 1999-08-05 | 2001-02-07 | KOREA INSTITUTE OF MACHINERY & MATERIALS | Wing type ultrasonic transducer |
| CN101121165A (en) * | 2007-09-04 | 2008-02-13 | 浙江师范大学 | Piezoelectric Ultrasonic Transducer |
| CN201482706U (en) * | 2009-09-10 | 2010-05-26 | 浙江师范大学 | A cylindrical ultrasonic transducer |
| CN102228886A (en) * | 2011-06-14 | 2011-11-02 | 桂林市啄木鸟医疗器械有限公司 | Waterproof ultrasonic transducer |
| CN202479121U (en) * | 2012-03-28 | 2012-10-10 | 张家港睿能科技有限公司 | Vibration source in ultrasonic transducer and ultrasonic full wave transducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061711A (en) * | 2012-12-21 | 2013-04-24 | 张家港睿能科技有限公司 | Application of ultrasonic waves in oilwell unplugging |
| CN105964526A (en) * | 2016-06-24 | 2016-09-28 | 黑龙江兰德超声科技股份有限公司 | Ultrasonic transduction device |
| CN111730419A (en) * | 2020-07-07 | 2020-10-02 | 洛阳博智自动控制技术有限公司 | High and low frequency composite ultrasonic micro-engraving device and method based on amplitude modulation theory |
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