CN201586334U - Ultrasonic transducer - Google Patents
Ultrasonic transducer Download PDFInfo
- Publication number
- CN201586334U CN201586334U CN2009202418740U CN200920241874U CN201586334U CN 201586334 U CN201586334 U CN 201586334U CN 2009202418740 U CN2009202418740 U CN 2009202418740U CN 200920241874 U CN200920241874 U CN 200920241874U CN 201586334 U CN201586334 U CN 201586334U
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- China
- Prior art keywords
- piezoelectric ceramic
- piece
- electrode plate
- negative electrode
- ultrasonic transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 48
- 230000005855 radiation Effects 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 238000000554 physical therapy Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims description 3
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000005684 electric field Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910004349 Ti-Al Inorganic materials 0.000 description 1
- 229910004692 Ti—Al Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model discloses an ultrasonic transducer which has smaller volume, lower production cost and stronger reliability and comprises a working part and a plastic housing, wherein the working part comprises a negative electrode plate, an absorption block, a second piezoelectric ceramic chip, a positive electrode plate and a first piezoelectric ceramic chip which are sequentially and annularly laminated together from bottom to top, wherein a radiation block is arranged above the first piezoelectric ceramic chip and provided with a bottom surface and an arc-shaped smooth top surface, the bottom surface is provided with a screwed hole, a prestressed bolt is connected in the screwed hole of the radiation block after sequentially penetrating through the negative electrode plate, the absorption block, the second piezoelectric ceramic chip, the positive electrode plate and the first piezoelectric ceramic chip from the bottom to the top, the positive electrode of a power line is electrically connected with the positive electrode plate, and the negative electrode thereof is electrically connected with the negative electrode plate; and the plastic housing is connected to the radiation block after containing the negative electrode plate, the absorption block, the second piezoelectric ceramic chip, the positive electrode plate and the first piezoelectric ceramic chip from the bottom to the top into the inner part thereof, and the bottom part of the plastic housing is provided with a power line hole through which the power line can pass.
Description
Technical field
This utility model relates to a kind of ultrasonic transducer, relates in particular to a kind of human body that directly acts on to carry out the ultrasonic transducer of physical therapy.
Background technology
Ultrasonic transducer is the device that a kind of power conversion with other form becomes ultrasonic energy, wherein using maximum is electroacoustic transducer, when affacting on the transducer, just launches an electric pulse ultrasonic pulse, its operation principle is a piezoelectric effect: place external electric field if will have the dielectric substance of piezoelectric effect, electric field can make the inner positive and negative charge center displacement of medium, thereby cause dielectric substance to produce deformation, this phenomenon by electricity generation mechanical deformation is called inverse piezoelectric effect, inverse piezoelectric effect only results from dielectric substance, and deformation and external electric field are linear and with external electric field oppositely and reindexing.If therefore the material with piezoelectric effect is applied alternating voltage, alternative compression and tensile deformation will take place in it under the effect of alternating electric field so, produced vibration therefrom, and the frequency of vibration is identical with the frequency of the alternating voltage that is applied, if the electric frequency that is applied is in ultrasonic frequency range, then the vibration that is produced is superaudible vibration, if this vibration is coupled in the elastic fluid goes, and the ripple of propagating in elastic fluid so is ultrasound wave.The most frequently used piezoelectric is the polycrystalline piezoceramic material at present, when selecting piezoelectric, not only need to consider mechanical property, also will consider the character that electrical properties and electricity and mechanics intercouple, these relate separately to elastic constant, dielectric constant and piezoelectric constant.
Ultrasonic transducer of the prior art is mainly used on the large-scale plants such as CT machine, sonar, its range of application has obtained greatly limitation, because the useful performance of ultrasound wave in medical science obtained confirmation already, therefore need a kind of ultrasonic transducer of personal user that is applicable to as individual physical therapy purposes, it must have plurality of advantages such as volume is less, production cost is lower, reliability is stronger, thereby popularizes hyperacoustic individual physiotherapy function.
The utility model content
For overcoming above-mentioned shortcoming, so the purpose of this utility model just is to provide the ultrasonic transducer that a kind of volume is less, production cost is lower, reliability is stronger.
In order to reach above purpose, the technical solution adopted in the utility model is: a kind of ultrasonic transducer, it comprises the cabinet that generation is used for hyperacoustic operate portions and is used to hold, operate portions comprises in the form of a ring and stacks gradually together negative electrode plate from top to bottom, absorb piece, second piezoelectric ceramic piece, electrode film, first piezoelectric ceramic piece, the top of first piezoelectric ceramic piece is provided with the radiation piece, the radiation piece has a flat bottom surface and a curved smooth top face, offer a screwed hole on the bottom surface, pre-stressed bolt passes negative electrode plate from bottom to top successively, absorb piece, second piezoelectric ceramic piece, electrode film, be connected in behind first piezoelectric ceramic piece in the screwed hole of radiation piece, the positive electrical of power line is connected in electrode film, and negative electricity is connected in negative electrode plate; Cabinet is connected in the radiation piece with negative electrode plate, absorption piece, second piezoelectric ceramic piece, electrode film, first piezoelectric ceramic piece after being contained in inside from bottom to top, and the bottom of cabinet is provided with the power line hole that the power supply source line passes.
Preferably, the edge of negative electrode plate has a negative pole elongated end, and the negative pole elongated end extends downwards from the edge of negative electrode plate.
Preferably, the edge of electrode film has an anodal elongated end, and anodal elongated end extends downwards from the edge of electrode film.
More preferably, the outward flange that absorbs piece offers a groove vertically, and anodal elongated end is positioned at groove.
Further, absorb piece and made by electrician's ferrum, its saturation induction density is higher.
Further, electrode film and negative electrode plate are made by phosphor-copper, and the phosphor-copper material is high temperature resistant and conductive effect good.
Further, the radiation piece is made by titanium-aluminium alloy, and titanium-aluminium alloy is better and acoustic resistance is less to hyperacoustic guidance quality.
Further, the thickness of first piezoelectric ceramic piece and second piezoelectric ceramic piece is 5cm, and external diameter is 38mm.
Owing to adopted technique scheme, make that volume of the present utility model is less and reliability is stronger, be suitable for personal user's daily use, and production cost is lower, promoted applying of ultrasound physiotherapy.
Description of drawings
Accompanying drawing 1 is the front view according to the embodiment of this utility model ultrasonic transducer;
Accompanying drawing 2 is the three-dimensional broken away view of operate portions in the accompanying drawing 1.
Wherein: 100, operate portions; 110, first piezoelectric ceramic piece; 120, second piezoelectric ceramic piece; 130, electrode film; 131, anodal elongated end 140, absorption piece; 141, groove; 150, radiation piece; 151, bottom surface; 152, end face; 160, negative electrode plate; 161, negative pole elongated end; 170, power line; 180, pre-stressed bolt;
200, cabinet; 210, power line hole; 220, flange.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby protection domain of the present utility model is made more explicit defining so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that.
Referring to accompanying drawing 1 and accompanying drawing 2, the ultrasonic transducer in the present embodiment mainly is made up of the cabinet 200 that is used to produce hyperacoustic operate portions 100 and be used to hold.
The top of first piezoelectric ceramic piece 110 is provided with radiation piece 150, radiation piece 150 is made by the less Ti-Al alloy material of acoustic resistance, radiation piece 150 has a flat bottom surface 151 and a curved smooth top face 152, end face 152 is used for directly contacting with human body skin or clothing, offer a screwed hole on the bottom surface 151, pre-stressed bolt 180 passes negative electrode plate 160 from bottom to top successively, absorb piece 140, second piezoelectric ceramic piece 120, electrode film 130, be connected in the screwed hole of radiation piece 150 behind first piezoelectric ceramic piece 110, thereby with negative electrode plate 160, absorb piece 140, second piezoelectric ceramic piece 120, electrode film 130, first piezoelectric ceramic piece 110, radiation piece 150 is anchored on and gives certain prestressing force together, form a kind of sandwich (sandwich) transducer architecture, thereby guarantee that element is in compressive state under high-power driving, avoid the little ceramic material overinflation of tolerable tensile stress to break.
Those skilled in the art will appreciate that, negative electrode plate 160 is connected with pre-stressed bolt 180, pre-stressed bolt 180 is made by stainless steel material, thereby absorbing piece 140 all is connected with negative pole with radiation piece 150, in order to prevent short circuit, be coated with one deck epoxy resin on the internal ring periphery of first piezoelectric ceramic piece 110, second piezoelectric ceramic piece 120, electrode film 130 with on the outer shroud periphery, to prevent the phenomenon of short circuit.
By above-mentioned embodiment, be not difficult to find out that this utility model is the ultrasonic transducer that a kind of volume is less, production cost is lower, reliability is stronger.
Abovely this utility model is described in detail in conjunction with embodiment; only be explanation technical conceive of the present utility model and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of being done according to this utility model spirit change or modify, and all should be encompassed in the protection domain of the present utility model.
Claims (8)
1. ultrasonic transducer is used for the ultrasound physiotherapy of human body, and it is characterized in that: it comprises:
Produce hyperacoustic operate portions (100), described operate portions (100) comprises in the form of a ring and stacks gradually together negative electrode plate (160) from top to bottom, absorb piece (140), second piezoelectric ceramic piece (120), electrode film (130), first piezoelectric ceramic piece (110), the top of described first piezoelectric ceramic piece (110) is provided with radiation piece (150), described radiation piece (150) has a flat bottom surface (151) and a curved smooth top face (152), described bottom surface offers a screwed hole on (151), pre-stressed bolt (180) passes described negative electrode plate (160) from bottom to top successively, absorb piece (140), second piezoelectric ceramic piece (120), electrode film (130), be connected in the screwed hole of described radiation piece (150) behind first piezoelectric ceramic piece (110), the positive electrical of power line (170) is connected in described electrode film (130), and negative electricity is connected in described negative electrode plate (160);
The cabinet that is used to hold (200), described cabinet (200) is connected in described radiation piece (150) with described negative electrode plate (160), absorption piece (140), second piezoelectric ceramic piece (120), electrode film (130), first piezoelectric ceramic piece (110) after being contained in inside from bottom to top, and the bottom of described cabinet (200) is provided with the power line hole of passing for described power line (170) (210).
2. ultrasonic transducer according to claim 1 is characterized in that: the edge of described negative electrode plate (160) has a negative pole elongated end (161), and described negative pole elongated end (161) extends downwards from the edge of described negative electrode plate (160).
3. ultrasonic transducer according to claim 1 is characterized in that: the edge of described electrode film (130) has an anodal elongated end (131), and described anodal elongated end (131) extends downwards from the edge of described electrode film (130).
4. ultrasonic transducer according to claim 3 is characterized in that: the outward flange of described absorption piece (140) offers a groove (141) vertically, and described anodal elongated end (131) is positioned at described groove (141).
5. ultrasonic transducer according to claim 4 is characterized in that: described absorption piece (140) is made by electrician's ferrum.
6. ultrasonic transducer according to claim 4 is characterized in that: described electrode film (130) is made by phosphor-copper with negative electrode plate (160).
7. ultrasonic transducer according to claim 4 is characterized in that: described radiation piece (150) is made by titanium-aluminium alloy.
8. ultrasonic transducer according to claim 4 is characterized in that: described first piezoelectric ceramic piece (110) is 5cm with the thickness of second piezoelectric ceramic piece (120), and external diameter is 38mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202418740U CN201586334U (en) | 2009-12-21 | 2009-12-21 | Ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202418740U CN201586334U (en) | 2009-12-21 | 2009-12-21 | Ultrasonic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201586334U true CN201586334U (en) | 2010-09-22 |
Family
ID=42746100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202418740U Expired - Lifetime CN201586334U (en) | 2009-12-21 | 2009-12-21 | Ultrasonic transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201586334U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615820A (en) * | 2013-12-09 | 2014-03-05 | 中国科学院声学研究所 | Ultrasonic heating device |
| CN110960063A (en) * | 2018-09-28 | 2020-04-07 | 佛山市顺德区美的电热电器制造有限公司 | Heating device |
| CN111451119A (en) * | 2020-03-26 | 2020-07-28 | 深圳市固特超声技术有限公司 | Novel piezoelectric patch transducer |
| CN113294226A (en) * | 2021-06-30 | 2021-08-24 | 同济大学 | Particle catcher based on ultrasonic wave removes particulate matter |
| JP2022122898A (en) * | 2018-09-28 | 2022-08-23 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司 | Power source coupler, ultrasonic vibration device, ultrasonic vibrator, fitting assembly, cover assembly, cooking utensil and heating apparatus |
-
2009
- 2009-12-21 CN CN2009202418740U patent/CN201586334U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615820A (en) * | 2013-12-09 | 2014-03-05 | 中国科学院声学研究所 | Ultrasonic heating device |
| CN103615820B (en) * | 2013-12-09 | 2015-06-03 | 中国科学院声学研究所 | Ultrasonic heating device |
| CN110960063A (en) * | 2018-09-28 | 2020-04-07 | 佛山市顺德区美的电热电器制造有限公司 | Heating device |
| CN110960063B (en) * | 2018-09-28 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Heating device |
| JP2022122898A (en) * | 2018-09-28 | 2022-08-23 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司 | Power source coupler, ultrasonic vibration device, ultrasonic vibrator, fitting assembly, cover assembly, cooking utensil and heating apparatus |
| JP7318061B2 (en) | 2018-09-28 | 2023-07-31 | 佛山市▲順▼▲徳▼区美的▲電▼▲熱▼▲電▼器制造有限公司 | Power Couplers, Ultrasonic Vibrators, Ultrasonic Transducers, Mounting Assemblies, Cover Assemblies, Cookware and Heating Appliances |
| CN111451119A (en) * | 2020-03-26 | 2020-07-28 | 深圳市固特超声技术有限公司 | Novel piezoelectric patch transducer |
| CN113294226A (en) * | 2021-06-30 | 2021-08-24 | 同济大学 | Particle catcher based on ultrasonic wave removes particulate matter |
| CN113294226B (en) * | 2021-06-30 | 2022-06-03 | 同济大学 | Particle catcher based on ultrasonic wave removes particulate matter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |