CN203169338U - Ultrasonic tooth cleaning energy converter - Google Patents
Ultrasonic tooth cleaning energy converter Download PDFInfo
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- CN203169338U CN203169338U CN 201320098191 CN201320098191U CN203169338U CN 203169338 U CN203169338 U CN 203169338U CN 201320098191 CN201320098191 CN 201320098191 CN 201320098191 U CN201320098191 U CN 201320098191U CN 203169338 U CN203169338 U CN 203169338U
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- energy converter
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Abstract
The utility model provides an ultrasonic tooth cleaning energy converter. The ultrasonic tooth cleaning energy converter comprises a working tip, an amplitude-change pole, a front cover plate and a piezoelectric ceramic sheet made of a PZT-4 (Pb-based lanthanumdoped Zirconate Titanates-4) piezoelectric ceramic material, wherein one end of the front cover plate is sleeved into the amplitude-change pole and is connected with the amplitude-change pole; the other end of the front cover plate is externally sleeved with the piezoelectric ceramic sheet; the front cover plate is provided with a water containing hole and a first connection hole; the centers of the working tip and the amplitude-change pole are respectively provided with a first through hole and a second through hole; and the water containing hole, the first connection hole, the first through hole and the second through hole are communicated with one another. According to the ultrasonic tooth cleaning energy converter disclosed by the utility model, on one hand, a full-vibration mode is selected and water can pass through a node of the energy converter, so that the influences on the performance of the energy converter are slight; and on the other hand, a high-performance piezoelectric material PZT-4 is selected so as to realize low-voltage driving. The ultrasonic tooth cleaning energy converter has the advantages of good performance, high working stability and the like.
Description
Technical field
This utility model relates to a kind of oral cavity medical apparatus field, relates in particular to a kind of ultrasonic scaling transducer.
Background technology
At present, there is big, the easy heating of integral handle vibrations in the domestic actual ultrasonic scaling transducer that uses, impedance is big, driving voltage is big.Cause the job stability of traditional ultrasonic scaling transducer not enough, stream time is short, by analysis, and main weak point following points:
1, the physical dimension of horn is not optimized;
What 2, transducer adopted is the half-wave pattern, and impedance is big, easily heating;
3, water flowing is in the transducer end, and water conduit is very big to the performance impact of transducer.
The utility model content
At the problems referred to above, the ultrasonic scaling transducer that provides a kind of performance better is provided the purpose of this utility model, and it is the all-wave vibration mode that this ultrasonic scaling transducer is selected vibration mode for use, and impedance is little.
The technical solution of the utility model is achieved in that
A kind of ultrasonic scaling transducer, the piezoelectric ceramic piece that comprises work point, horn, front shroud, PZT-4 piezoceramic material, described front shroud one end is inserted in described horn and is connected with it, the outside sheathed described piezoelectric ceramic piece of the described front shroud other end, described front shroud is provided with water receiving hole and first connecting hole, described work point and described horn center are respectively equipped with first through hole and second through hole, and described water receiving hole, described first connecting hole, described first through hole and described second through hole are interconnected.
Preferably, it further comprises back shroud, and described back shroud center is provided with second connecting hole, and described front shroud is inserted in described second connecting hole, and piezoelectric ceramic piece is placed between described front shroud and the described back shroud.
Preferably, described first connecting hole, described second connecting hole and described water receiving hole are screwed hole.
Preferably, described horn external diameter is Φ 8～Φ 15mm, and axial length is 45～50mm.
Preferably, ring diameter is Φ 4～Φ 6mm in the described piezoelectric ceramic piece, and outer ring diameter is Φ 8～Φ 15mm, and thickness is 1～5mm.
Preferably, described work point, horn, front shroud, piezoelectric ceramic piece and its center of back shroud are point-blank.
Preferably, described ultrasonic scaling transducer total length is 108～130mm.
The beneficial effect that this utility model produces is:
1, the ultrasonic scaling transducer that the utility model proposes, selecting vibration mode for use is the all-wave vibration mode, impedance is little;
2, this utility model adopts the horn partial design frequency equation of all-wave pattern to design the sizes at different levels of horn part, and operation mode is more excellent;
3, this utility model is selected the high-performance piezoceramic material of PZT-4, and the mechanical performance height can be realized low voltage drive;
4, the present invention is novel in the place's water flowing of transducer node, and node is selected in piezoelectric ceramic piece and is close to the front shroud place;
5, this utility model utilizes the admittance characteristic of electric impedance analyzer test energy converting system, the resonant frequency of detection system motion; Utilize displacement amplitude and the mode of oscillation of laser dopper flowmeter vialog test energy converting system end, with the displacement output of detection system; The size of horn obtains through optimal design, can realize ultrasonic scaling transducer job stability height, long time continuous working.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the main TV structure sketch map of an embodiment of a kind of ultrasonic scaling transducer of this utility model;
Fig. 2 be among Fig. 1 A-A to the sectional structure sketch map;
Among the figure: 1 work point; 11 first through holes; 2 horn; 21 second through holes; 3 front shrouds; 31 first connecting holes; 32 water receiving holes; 4 piezoelectric ceramic pieces; 5 back shrouds; 51 second connecting holes; 6 aqueducts.
The specific embodiment
Below in conjunction with the accompanying drawing among this utility model embodiment, the technical scheme among this utility model embodiment is clearly and completely described, obviously, described embodiment only is this utility model part embodiment, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of this utility model protection.
According to Fig. 1～preferred embodiment shown in Figure 2, a kind of ultrasonic scaling transducer, comprise work point 1, horn 2, front shroud 3, the piezoelectric ceramic piece 4 of PZT-4 piezoceramic material and back shroud 5, described front shroud 3 one ends are inserted in described horn 2 and are connected with it, the outside sheathed described piezoelectric ceramic piece 4 of described front shroud 3 other ends, described front shroud 3 is provided with water receiving hole 32 and first connecting hole 31, described work point 1 and described horn 2 centers are respectively equipped with first through hole 11 and second through hole 21, described water receiving hole 32, described first connecting hole 31, described first through hole 11 and described second through hole 21 are interconnected.Described back shroud 5 centers are provided with second connecting hole 51, and described front shroud 3 is inserted in described second connecting hole 51, and piezoelectric ceramic piece 4 is placed between described front shroud 3 and the described back shroud 5.Described first connecting hole 31, described second connecting hole 51 and described water receiving hole 32 are screwed hole.Piezoelectric ceramic piece 4 is selected the PZT-4 piezoceramic material for use in the present embodiment, and its mechanical performance height can be realized low voltage drive.
PZT is the abbreviation of lead titanate piezoelectric ceramics, and wherein P is the abbreviation of lead element Pb, and Z is the abbreviation of zr element Zr, and T is the abbreviation of titanium elements Ti.The PZT piezoelectric ceramics is that it has direct piezoelectric effect and reversed piezoelcetric effect with Lead oxide brown, lead zirconates, the lead titanates polycrystal that sintering forms under 1200 degree high temperature.It is that lead titanates and lead zirconates solid solution are basic constituent, and its curie point is between 300-400 degree centigrade, and is more stable in bigger temperature range, and as transducer material, its piezoelectric effect is remarkable.PZT-4 is the lead with calcium, strontium or barium replacing section, a kind of material made from stannum displacement zirconium, and its curie point reduces, and dielectric constant increases.
Described first connecting hole, 31 hollows are processed with and the described horn 2 sheathed female threads that are connected outside it in the present embodiment, and described second connecting hole 51 is provided with and the described front shroud 3 sheathed female threads that are connected, and it all connects by fixture.Described water receiving hole 32 is arranged at front shroud 3 sides of being close to described piezoelectric ceramic piece 4 in the present embodiment, it is screwed hole, be convenient to connect the water flowing that aqueduct is realized the toothwash process, 3 places connect at front shroud, namely in the water flowing of node place, it at utmost reduces hyperacoustic performance impact, thereby improves the performance of this ultrasonic scaling transducer, and described aqueduct adopts HPb63-3 to make.Preferred power plant is ultrasound wave in the present embodiment, and described ultrasound wave produces by driving piezoelectric ceramic piece 4, finishes the work of ultrasonic scaling transducer.
Described horn 2 one ends are connected with described front shroud 3, and the other end and described work point 1 are connected by fixture, and preferred fixture is the bolt of M3 in the present embodiment.In the present embodiment, described work point 1 adopts traditional work point, the bohler manufacturing, and described front shroud 3 and described back shroud 5 adopt rustless steel 304 to make, and described horn 2 adopts the titanium alloy TC 4 manufacturing.
Selecting vibration mode in the present embodiment is the all-wave pattern, and the design procedure of horn size is:
Design the sizes at different levels of horn part according to the horn partial design frequency equation of all-wave pattern:
Wherein, k' and k are the wave number of transducing bar and mounting portion;
δ, δ
2, δ
3And δ
4Proportionality constant for system's rod member;
l
1, l
2, l
3Each level length for project organization;
(1) verifies based on the energy converting system of Finite Element
Utilize software ANSYS ANSYS that the energy converting system of being set up by the one dimension elastic wave theory is verified, obtain frequency distribution, mode of oscillation and the corresponding vibration shape of energy converting system;
(2) energy converting system processing and assembling
By the physical dimension of each parts, the energy converting system each several part is processed, utilize the assembling of pointer ergometer, follow in the operating process:
Described work point, horn, front shroud, piezoelectric ceramic piece and its center of back shroud are point-blank, described piezoelectric ceramic piece 4 is 0.02～0.06 with described horn 2 axialities, in the present embodiment, piezoelectric ceramic piece 4 is 0.04 with the axiality of horn 2 during assembling, can realize that described piezoelectric ceramic piece 4 cooperates closely with described horn 2 through holes, thereby strengthen the job stability of described ultrasonic scaling transducer.
(3) energy converting system Performance Detection
Utilize the admittance characteristic of electric impedance analyzer test energy converting system, the resonant frequency of detection system motion; Utilize displacement amplitude and the mode of oscillation of laser dopper flowmeter vialog test energy converting system end, with the displacement output of detection system.
Through optimal design, the total length of the horn 2 that the transducer performance of all-wave mode vibration is good is 45～50mm, and described horn 2 external diameters are Φ 8～Φ 15mm, and preferred horn 2 external diameters of present embodiment are Φ 10mm.Ultrasonic scaling transducer total length is 108～130mm, and the external diameter of the preferred described front shroud 3 of present embodiment is 20mm, and the transducer length overall is 110mm～120mm.
Described piezoelectric ceramic piece 4 is selected the high-performance piezoceramic material of PZT-4 for use, its good mechanical property, can realize low voltage drive, ring diameter is Φ 4～Φ 6mm in the described piezoelectric ceramic piece 4, outer ring diameter is Φ 8～Φ 12mm, thickness is 1～5mm, and preferred piezoelectric ceramic piece 4 is of a size of Φ 11.5 * Φ 5.3 * 1.25mm in the present embodiment.
Utilize electric impedance analyzer that transducer is carried out sweep check in the present embodiment, the resonant frequency of detection system can get the operating frequency of system about 30kHz; Utilize the laser dopper flowmeter tester to detect the displacement output of transducer end, the output displacement that can get system is about 20um, meets the requirement of ultrasonic tooth.
This utility model adopts full vibration mode, and impedance is little, and the size of horn obtains through optimal design, can realize ultrasonic scaling transducer job stability height, long time continuous working.
The above only is preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. ultrasonic scaling transducer, the piezoelectric ceramic piece that comprises work point, horn, front shroud, PZT-4 piezoceramic material, it is characterized in that: described front shroud one end is inserted in described horn and is connected with it, the outside sheathed described piezoelectric ceramic piece of the described front shroud other end, described front shroud is provided with water receiving hole and first connecting hole, described work point and described horn center are respectively equipped with first through hole and second through hole, and described water receiving hole, described first connecting hole, described first through hole and described second through hole are interconnected.
2. ultrasonic scaling transducer as claimed in claim 1, it is characterized in that: it further comprises back shroud, described back shroud center is provided with second connecting hole, and described front shroud is inserted in described second connecting hole, and piezoelectric ceramic piece is placed between described front shroud and the described back shroud.
3. ultrasonic scaling transducer as claimed in claim 2, it is characterized in that: described first connecting hole, described second connecting hole and described water receiving hole are screwed hole.
4. ultrasonic scaling transducer as claimed in claim 1, it is characterized in that: described horn external diameter is Φ 8～Φ 15mm, and axial length is 45～50mm.
5. ultrasonic scaling transducer as claimed in claim 1 is characterized in that: ring diameter is Φ 4～Φ 6mm in the described piezoelectric ceramic piece, and outer ring diameter is Φ 8～Φ 15mm, and thickness is 1～5mm.
6. ultrasonic scaling transducer as claimed in claim 1, it is characterized in that: described work point, horn, front shroud, piezoelectric ceramic piece and its center of back shroud are point-blank.
7. ultrasonic scaling transducer as claimed in claim 1, it is characterized in that: described ultrasonic scaling transducer total length is 108～130mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098191 CN203169338U (en) | 2013-03-04 | 2013-03-04 | Ultrasonic tooth cleaning energy converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098191 CN203169338U (en) | 2013-03-04 | 2013-03-04 | Ultrasonic tooth cleaning energy converter |
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| Publication Number | Publication Date |
|---|---|
| CN203169338U true CN203169338U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320098191 Withdrawn - After Issue CN203169338U (en) | 2013-03-04 | 2013-03-04 | Ultrasonic tooth cleaning energy converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103099684A (en) * | 2013-03-04 | 2013-05-15 | 东莞华中科技大学制造工程研究院 | Ultrasonic tooth cleaning energy transducer |
| WO2017008507A1 (en) * | 2015-07-13 | 2017-01-19 | 桂林市啄木鸟医疗器械有限公司 | Ultrasonic dentistry scaling apparatus |
| CN108938116A (en) * | 2018-08-14 | 2018-12-07 | 浙江卓为医疗器械有限公司 | The transmission module of tooth-cleaning machine |
| CN114903631A (en) * | 2022-05-31 | 2022-08-16 | 广东固特科技有限公司 | Ultrasonic scaler transducer |
-
2013
- 2013-03-04 CN CN 201320098191 patent/CN203169338U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103099684A (en) * | 2013-03-04 | 2013-05-15 | 东莞华中科技大学制造工程研究院 | Ultrasonic tooth cleaning energy transducer |
| CN103099684B (en) * | 2013-03-04 | 2016-06-01 | 广东华中科技大学工业技术研究院 | A kind of ultrasonic scaling transverter |
| WO2017008507A1 (en) * | 2015-07-13 | 2017-01-19 | 桂林市啄木鸟医疗器械有限公司 | Ultrasonic dentistry scaling apparatus |
| CN108938116A (en) * | 2018-08-14 | 2018-12-07 | 浙江卓为医疗器械有限公司 | The transmission module of tooth-cleaning machine |
| CN114903631A (en) * | 2022-05-31 | 2022-08-16 | 广东固特科技有限公司 | Ultrasonic scaler transducer |
| CN114903631B (en) * | 2022-05-31 | 2023-09-12 | 广东固特科技有限公司 | Ultrasonic tooth cleaner transducer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20150304 |
|
| EXPY | Termination of patent right or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20160601 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |