CN2850721Y - Piezoelectric supersonic unit multi-focus energy-concentrating transducer - Google Patents
Piezoelectric supersonic unit multi-focus energy-concentrating transducer Download PDFInfo
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- CN2850721Y CN2850721Y CN 200520099797 CN200520099797U CN2850721Y CN 2850721 Y CN2850721 Y CN 2850721Y CN 200520099797 CN200520099797 CN 200520099797 CN 200520099797 U CN200520099797 U CN 200520099797U CN 2850721 Y CN2850721 Y CN 2850721Y
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- piezoelectric
- ultrasonic
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- energy converter
- transducer
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Abstract
The utility model relates to a focus energy accumulation energy converter, particularly to a piezoelectric multi-focus energy accumulation energy converter which can generate an energy accumulation ultrasonic field and is provided with ultrasonic units. The piezoelectric multi-focus energy accumulation energy converter comprises a metal match block and a piezoelectric wafer, and is characterized in that one side of the metal match block is composed of a plurality of concave spherical surfaces. The piezoelectric multi-focus energy accumulation energy converter solves the problems that ultrasonic waves generated by the existing energy converter are partially overlapped and counteracted, the ultrasonic field is not uniform, and the application effect is unfavorable. The piezoelectric multi-focus energy accumulation energy converter adopts the single working frequency, realizes the effect that a plurality of energy converters are combined by processing a plurality of spherical surfaces of a metallic sound lens, and the piezoelectric multi-focus energy accumulation energy converter avoids the formation of a complicated ultrasonic field formed by different frequencies and different phases. The piezoelectric multi-focus energy accumulation energy converter enlarges the designed range of the ultrasonic field, and the ultrasonic field formed works in different frequencies. The piezoelectric multi-focus energy accumulation energy converter can be applied to ultrasonic thermotherapy and ultrasonic termination for early pregnancy, and has great application prospect.
Description
Technical field:
The utility model relates to a kind of focusing cumulative transducer, specifically a kind of burnt cumulative transducer of piezoelectric-type ultrasonic unit poly that can produce the energy-collecting ultrasonic sound field.
Background technology:
Focused transducer is the critical piece of sonicator.At present,, need the fuel factor of using ultrasound that patient's intracorporeal organ is improved temperature, reach therapeutic purposes in the ultrasonic therapy application.Affected part improves temperature in the body in order to give, and current several unit plane ultrasonic transducers that adopt are formed a focusing acoustic field more, and for avoiding thermal burn, the angle that staggers when the arrangement unit transducer makes the area of heating big, and temperature is even.Similar approach is also arranged when utilizing mechanical effect of ultrasound to do other application.Its difficulty of this application is to adopt a plurality of ultrasonic transducer operating frequencies to be not easy unanimity, and it is big to drive work limitation rate difference with single high frequency electric source, and sound field is also just very inhomogeneous; When joining high frequency electric source separately as each ultrasonic transducer, single transducer efficient height, but because of different frequency, it is very complicated that the out of phase sound field becomes, the stack that has between the ultrasonic wave that transducer produces, the counteracting that has, sound field is inhomogeneous equally, should use difficulty more.
The utility model content:
The novel technical problem to be solved of this usefulness is: at the defective that existing product exists, provide a kind of piezoelectric-type ultrasonic unit poly burnt cumulative transducer, it has overcome the uneven problem of sound field that existing therapeutic equipment adopts polynary focusing and multi-frequency work to bring.
The technical solution of the utility model is achieved in that it comprises metal matching blocks and piezoelectric chip, is characterized in that: the one side of metal matching blocks is made up of several concave spherical surfaces.The another side of metal matching blocks is the plane, its coaxial being bonded on the piezoelectric chip; Several concave spherical surfaces of metal matching blocks are that the center evenly distributes with the central shaft; The seal cavity of being made up of metal matching blocks and metal shell is equipped with the electrode stage clip, and positive electrode is pressed on the silver-plated electrode surface of piezoelectric chip, and the cable negative pole is connected on the metal shell; The distance of concave sphere's center centrifugal shaft is 1/2nd of concave sphere's center distributed source diameter ∮.
The novel employing one working frequency of this usefulness by many sphere processing of metallic sound lens being reached the effect of several transducer combinations, has been avoided again because the complex sound field that the different frequency out of phase forms.It has enlarged the scope to the ultrasonic field design, and the sound field of formation adopts different frequency work, can be applied in ultrasound thermal therapy, and there is prospect in fields such as excusing from death termination of early pregnancy very much on using.
Center with the metal matching layer is the axle center, process some axial symmetry concave spherical surfaces, the radius of a ball SR of concave spherical surface designs according to the sound field needs, the radius of a ball that the minimum point of concave spherical surface is passed through is decided to be the ball journal of this concave spherical surface, this ball journal also designs according to the sound field needs apart from ∮ to symmetrical concave spherical surface ball journal, and the design of other size mainly designs according to the acoustics matching principle.The burnt metal matching blocks another side of the poly that processes is the higher plane of glacing flatness.With piezoelectric chip firm being bonded on the match block plane with one heart, treat bonding firmly after, it is bonded on the shell with fluid sealant, electrode and electrode stage clip are housed in the shell, insert shell with high frequency cable, respectively positive pole is connected on positive electrode, negative electrode is connected on the shell, with sealed electrical cable hole, inserts suitable high frequency electric source by cable, transducer is placed water, can produce the ultrasonic wave sound field that is fit to thermotherapy.Has even sound field with the frequency homophase.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of the utility model metal matching blocks and piezoelectric chip
Fig. 3 is the perspective view of the utility model metal matching blocks
The specific embodiment:
As shown in Figure 1 and Figure 2, it comprises metal matching blocks and piezoelectric chip, and the one side of metal matching blocks is made up of several concave spherical surfaces.The another side of metal matching blocks is the plane, its coaxial being bonded on the piezoelectric chip; Several concave spherical surfaces of metal matching blocks are that the center evenly distributes with the central shaft; The seal cavity of being made up of metal matching blocks and metal shell is equipped with the electrode stage clip, and positive electrode is pressed on the silver-plated electrode surface of piezoelectric chip, and the cable negative pole is connected on the metal shell.
In Fig. 1, it is the equally distributed some concave spherical surfaces in center that the one side of metal matching blocks (1) is processed to the axle center, the concave sphere's center centrifugal shaft apart from ∮/2, needs ∮ according to the design sound field can be very little, also can arrive the length of piezoelectric chip (2) radius greatly, the radius SR of the processing centre of sphere can be according to the needs design of sound field, and other design size designs according to the acoustics matching principle.The another side of metal matching blocks (1) is processed into the higher plane of glacing flatness, is bonded on the plane piezoelectric chip (2) standby according to the requirement of concentric co-axial.Go up fixing high frequency cable (6) at metal shell (5) as Fig. 2, dress cable negative pole (4) is connected on the metal shell (5), cable positive pole (8) is connected on the positive electrode (3), positive electrode (3) is fixed on the axis of metal shell (5) with electrode stage clip (7), collets (10), be coaxial assembling, positive electrode (3) becomes state of insulation with metal shell (5).The metal matching blocks (1) of the piezoelectric chip (2) that glues is bonding with fluid sealant (9) with metal shell (5), and at this moment positive electrode (3) is pressed on the silver-plated electrode surface of piezoelectric chip (2) by electrode stage clip (7).
The burnt cumulative transducer of the piezoelectric type unit poly that designs like this, be connected with high frequency electric source by high frequency cable (6), after opening, single piezoelectric chip is only worked with single-frequency, and resonance and entrant sound by metal matching layer (1), each concave spherical surface all forms a focal zone under same frequency, and on axis, also form a total focal zone, and the total sound field form in these focal zones, can change concave spherical surface radius SR and the concave spherical surface wheelbase change from ∮ by processing, thereby it is inhomogeneous to have overcome the sound field that polynary focusing and multi-frequency work brings.Adopt this transducer work, enlarged the scope to the ultrasonic field design, the sound field of formation adopts different frequency work, can be applied in ultrasound thermal therapy, and there is prospect in fields such as excusing from death termination of early pregnancy very much on using.
Claims (5)
1, the burnt cumulative transducer of a kind of piezoelectric-type ultrasonic unit poly, it comprises metal matching blocks and piezoelectric chip, it is characterized in that: the one side of metal matching blocks is made up of several concave spherical surfaces.
2, the burnt cumulative transducer of a kind of piezoelectric-type ultrasonic unit poly as claimed in claim 1, it is characterized in that: the another side of metal matching blocks is the plane, its coaxial being bonded on the piezoelectric chip.
3, the burnt cumulative transducer of a kind of piezoelectric-type ultrasonic unit poly as claimed in claim 1, it is characterized in that: several concave spherical surfaces of metal matching blocks are that the center evenly distributes with the central shaft.
4, the burnt cumulative transducer of a kind of piezoelectric-type ultrasonic unit poly as claimed in claim 1, it is characterized in that: the seal cavity of being made up of metal matching blocks and metal shell is equipped with the electrode stage clip, positive electrode is pressed on the silver-plated electrode surface of wafer, and the cable negative pole is connected on the metal shell.
5, the burnt cumulative transducer of a kind of piezoelectric-type ultrasonic unit poly as claimed in claim 1, it is characterized in that: the distance of concave sphere's center centrifugal shaft is 1/2nd of concave sphere's center distributed source diameter ∮.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099797 CN2850721Y (en) | 2005-12-31 | 2005-12-31 | Piezoelectric supersonic unit multi-focus energy-concentrating transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099797 CN2850721Y (en) | 2005-12-31 | 2005-12-31 | Piezoelectric supersonic unit multi-focus energy-concentrating transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2850721Y true CN2850721Y (en) | 2006-12-27 |
Family
ID=37584687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520099797 Expired - Fee Related CN2850721Y (en) | 2005-12-31 | 2005-12-31 | Piezoelectric supersonic unit multi-focus energy-concentrating transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2850721Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430512A (en) * | 2011-09-30 | 2012-05-02 | 东南大学 | Integrated system on ultrasonic transducer sheet with MEMS (Micro-Electromechanical Systems) glass sphere and preparation method thereof |
| JP2021519543A (en) * | 2018-03-30 | 2021-08-10 | ラブサイト インコーポレイテッド | Fluid Impermeable Ultrasonic Transducer |
-
2005
- 2005-12-31 CN CN 200520099797 patent/CN2850721Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430512A (en) * | 2011-09-30 | 2012-05-02 | 东南大学 | Integrated system on ultrasonic transducer sheet with MEMS (Micro-Electromechanical Systems) glass sphere and preparation method thereof |
| CN102430512B (en) * | 2011-09-30 | 2014-07-02 | 东南大学 | Integrated system on ultrasonic transducer sheet with MEMS (Micro-Electromechanical Systems) glass sphere and preparation method thereof |
| JP2021519543A (en) * | 2018-03-30 | 2021-08-10 | ラブサイト インコーポレイテッド | Fluid Impermeable Ultrasonic Transducer |
| JP7231646B2 (en) | 2018-03-30 | 2023-03-01 | ラブサイト インコーポレイテッド | fluid impermeable ultrasonic transducer |
| US11898993B2 (en) | 2018-03-30 | 2024-02-13 | Labcyte, Inc. | Fluid impermeable ultrasonic transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20101231 |