CN103886856A - Inward-concave Cymbal transducer - Google Patents
Inward-concave Cymbal transducer Download PDFInfo
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- CN103886856A CN103886856A CN201410118988.1A CN201410118988A CN103886856A CN 103886856 A CN103886856 A CN 103886856A CN 201410118988 A CN201410118988 A CN 201410118988A CN 103886856 A CN103886856 A CN 103886856A
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- concave
- transducer
- metal shell
- cymbal
- disc
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Abstract
The invention relates to the technical field of underwater acoustic transducers, in particular to an inward-concave Cymbal transducer. The inward-concave Cymbal transducer comprises a closed disc-shaped metal shell, piezoelectric elements are arranged in the shell, the two end faces of the disc-shaped metal shell cave inwards, the piezoelectric elements are piezoelectric drive rings, insulating layers are arranged between the piezoelectric drive rings and the side wall of the disc-shaped metal shell, the piezoelectric drive rings are connected with the insulating layers in a bonded mode, and the insulating layers are connected with the side wall of the disc-shaped metal shell in a bonded mode. The inward-concave Cymbal transducer is used for the underwater acoustic transducer technology, has high acoustic radiation efficiency, and is high in hydrostatic pressure resistance and better in performance.
Description
Technical field
The present invention relates to underwater acoustic transducer technical field, especially a kind of concave Cymbal transducer.
Background technology
The eighties in last century later stage, piezoelectric ceramics as shown in Figure 1 and the compound Moonie transducer architecture of metal two-phase have been invented by University of Pennsylvania of the U.S..The metal cap of the transducer of this structure, can be converted into the much larger axial displacement in metal cap top and vibration radial displacement little piezo ceramic element and vibration.Afterwards, this structure was constantly modified, and the Amplitude amplification effect of transducer obtains promoting more significantly, had formed comparatively ripe Cymbal transducer architecture as shown in Figure 2 the beginning of this century.
Cymbal structure has significant displacement enlarge-effect, make this structure become the important study hotspot of field of transducer in nearest ten years, at aspects such as piezo-electricity composite material, large displacement actuators, particularly launch extensive and deep research in underwater acoustic transducer field.But be almost confined at present small size underwater acoustic transducer and the basic matrix of reception type transducer and the use of medium-high frequency section about the research of Cymbal transducer, and aspect low frequencies underwater acoustic transducer, owing to being subject to the restriction of the factor such as restriction, adhesive bond strength of piezo ceramic element size, existing Cymbal transducer exists acoustic radiation efficiency low, the not high deficiency of hydrostatic pressure resistant intensity, performance still has to be hoisted.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of concave Cymbal transducer, and this product has higher acoustic radiation efficiency, resistance to hydrostatic pressure intensity is high, and performance is better.
In order to solve the problems of the technologies described above, the present invention includes disc metal shell, in described housing, be provided with piezoelectric element, two end faces of described disc metal shell are concave shaped.
Preferably, described piezoelectric element is Piezoelectric Driving annulus.
Further, between described Piezoelectric Driving annulus and the sidewall of disc metal shell, be provided with insulation course.
Further, described Piezoelectric Driving annulus and insulation course are bonding, and the sidewall of described insulation course and disc metal shell is bonding.
The concave Cymbal transducer architecture that the present invention proposes is the various advantages such as traditional inheritance Cymbal transducer architecture high integration, high-level efficiency comprehensively, compared with traditional C ymbal transducer architecture, concave Cymbal transducer also possesses other considerable advantages:
1, in the time that low frequency basic mode is worked, there is not antiphase region in the whole radiating surface of transducer substantially, and transducer can be to be similar to Breathing mode work, and therefore this structure transducer possesses very high acoustic radiation efficiency.
2, transducer resistance to hydrostatic pressure superior performance: transducer can not make the prestressed failure of transducer in the time of the high static pressure work of deep water on the one hand; The ability that the resistance to hydrostatic pressure of structure destroys on the other hand has obvious lifting compared with Cymbal structure, facts have proved that this transducer architecture possesses 1000 meters of above depth capabilities, and this is rare in flextensional transducer field.
3, replace single piezoelectric ceramic piece as drive source with Piezoelectric Driving annulus, overcome original Cymbal transducer Piezoelectric Driving disk and can only utilize the restriction of bonding strength to maximum functional amplitude between the restriction of piezoelectric ceramics lateral vibration mode of poor efficiency and piezoelectric ceramics and metal cap, make Cymbal transducer break through large scale piezoelectric disc and cannot prepare the bottleneck problem low with reliability, greatly promoted the performance of transducer.
Accompanying drawing explanation
Fig. 1 is Moonie transducer architecture schematic diagram;
Fig. 2 is the structural representation of traditional C ymbal transducer;
Fig. 3 is structural representation of the present invention.
Embodiment
The embodiment that the present invention is cited; just for helping to understand the present invention; should not be construed as limiting the scope of the present invention; for those skilled in the art; without departing from the inventive concept of the premise; can also the present invention be improved and be modified, these improvement and modification also fall in the scope of the claims in the present invention protection.
As shown in Figure 3, the present invention includes disc metal enclosed housing 1, in described housing, be provided with Piezoelectric Driving annulus 2, two end faces of described disc metal shell 1 are concave shaped, between described Piezoelectric Driving annulus 2 and the sidewall of disc metal shell 1, be provided with insulation course 3, insulation course 3 can adopt stupalith or the good insulating material of other rigidity to make.Described Piezoelectric Driving annulus 2 is bonding with insulation course 3, and described insulation course 3 is bonding with the sidewall of disc metal shell 1, forms a firmly one-piece construction.Cable for the ease of Piezoelectric Driving annulus 2 is drawn, and can offer a perforation 4, and carry out water-stop processing on described disc metal enclosed housing 1.
Claims (4)
1. concave Cymbal transducer, comprises disc metal enclosed housing (1), in described housing, is provided with piezoelectric element, it is characterized in that, two end faces of described disc metal shell (1) are concave shaped.
2. concave Cymbal transducer according to claim 1, is characterized in that, described piezoelectric element is Piezoelectric Driving annulus (2).
3. concave Cymbal transducer according to claim 2, is characterized in that, between described Piezoelectric Driving annulus (2) and the sidewall of disc metal shell (1), is provided with insulation course (3).
4. concave Cymbal transducer according to claim 3, is characterized in that, described Piezoelectric Driving annulus (2) is bonding with insulation course (3), and described insulation course (3) is bonding with the sidewall of disc metal shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118988.1A CN103886856A (en) | 2014-03-28 | 2014-03-28 | Inward-concave Cymbal transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118988.1A CN103886856A (en) | 2014-03-28 | 2014-03-28 | Inward-concave Cymbal transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103886856A true CN103886856A (en) | 2014-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410118988.1A Pending CN103886856A (en) | 2014-03-28 | 2014-03-28 | Inward-concave Cymbal transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103886856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3090206A1 (en) | 2018-12-13 | 2020-06-19 | Commissariat à l'énergie atomique et aux énergies alternatives | Electromechanical actuator, vibrotactile button and surface loudspeaker comprising such an electromechanical actuator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6232702B1 (en) * | 1998-08-18 | 2001-05-15 | The Penn State Research Foundation | Flextensional metal-ceramic composite transducer |
| CN101093667A (en) * | 2006-06-23 | 2007-12-26 | 北京大学 | Dish type transmitting transducer |
| CN101111098A (en) * | 2007-08-31 | 2008-01-23 | 陕西师范大学 | Sandwich type radial direction vibrating piezoelectric ceramic ultrasonic transducer |
| US20090303839A1 (en) * | 2007-07-31 | 2009-12-10 | Manoj Narayanan | Stress-biased cymbals incorporating a shape memory alloy |
| CN102708851A (en) * | 2012-06-25 | 2012-10-03 | 唐山海通电子有限公司 | Transmitting-receiving underwater transducer |
| CN202615781U (en) * | 2012-06-15 | 2012-12-19 | 国家海洋技术中心 | Special underwater sound transducer for deep-sea releaser |
| CN103400574A (en) * | 2013-07-26 | 2013-11-20 | 中国船舶重工集团公司第七一五研究所 | Transmit-receive sharing broadband inlaying annular transducer and preparation method thereof |
-
2014
- 2014-03-28 CN CN201410118988.1A patent/CN103886856A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6232702B1 (en) * | 1998-08-18 | 2001-05-15 | The Penn State Research Foundation | Flextensional metal-ceramic composite transducer |
| CN101093667A (en) * | 2006-06-23 | 2007-12-26 | 北京大学 | Dish type transmitting transducer |
| US20090303839A1 (en) * | 2007-07-31 | 2009-12-10 | Manoj Narayanan | Stress-biased cymbals incorporating a shape memory alloy |
| CN101111098A (en) * | 2007-08-31 | 2008-01-23 | 陕西师范大学 | Sandwich type radial direction vibrating piezoelectric ceramic ultrasonic transducer |
| CN202615781U (en) * | 2012-06-15 | 2012-12-19 | 国家海洋技术中心 | Special underwater sound transducer for deep-sea releaser |
| CN102708851A (en) * | 2012-06-25 | 2012-10-03 | 唐山海通电子有限公司 | Transmitting-receiving underwater transducer |
| CN103400574A (en) * | 2013-07-26 | 2013-11-20 | 中国船舶重工集团公司第七一五研究所 | Transmit-receive sharing broadband inlaying annular transducer and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3090206A1 (en) | 2018-12-13 | 2020-06-19 | Commissariat à l'énergie atomique et aux énergies alternatives | Electromechanical actuator, vibrotactile button and surface loudspeaker comprising such an electromechanical actuator |
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Application publication date: 20140625 |
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| RJ01 | Rejection of invention patent application after publication |