CN104811879B - A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters - Google Patents
A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters Download PDFInfo
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- CN104811879B CN104811879B CN201410033314.1A CN201410033314A CN104811879B CN 104811879 B CN104811879 B CN 104811879B CN 201410033314 A CN201410033314 A CN 201410033314A CN 104811879 B CN104811879 B CN 104811879B
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- piezoelectric ceramic
- ceramic stack
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- tubular end
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Abstract
The present invention relates to a kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters, including piezoelectric ceramic stack, lower tubular end cap, prestressing force screw rod and upper tubular end cap；Wherein, the piezoelectric ceramic stack has multiple, and any piezoelectric ceramic stack is mounted on by prestressing force screw rod between the lower tubular end cap and upper tubular end cap, is connected in parallel between the multiple piezoelectric ceramic stack；There are spacing between the top of the lower tubular end cap and the bottom of upper tubular end cap.The present invention utilizes the multiple modal vibrations of its piezoelectric pile and upper and lower cover plates, realize the big broadband emission of energy converter, the problem of larger transmitting response reduction brought using 33 operating modes and reduction of multiple pressure pile by the inversion issue of circular tube structure radial vibration, obtain powerful transmitting.
Description
Technical field
The present invention relates to underwater sound communication, detection, ocean deepwater research field, in particular it relates to which a kind of multiple pressure is electric
Ceramic stack encourages deepwater wideband energy converter.
Background technology
21 century is the century of ocean, and underwater acoustic transducer is the important means for recognizing ocean, in underwater sound communication, detection, sea
Foreign deep water research field is all widely used.Current major marine resources country is to institute before the attention of marine resources and maritime territory
Do not have, deep-sea development technology has become hot spot, and this requires underwater acoustic transducer can work under deep water conditions.This is to the underwater sound
The performance of energy converter proposes higher requirement.
Traditional deepwater wideband piezoelectric circular energy converter uses open flow structure, and the energy converter of such structure uses diameter
It is vibrated to vibration and internal sap cavity, to realize broadband, due to radial vibration, there are inside and outside inversion issue, the emitting voltages of energy converter
Response decreases.
Invention content
It is an object of the invention to overcome underwater acoustic transducer of the prior art inside and outside inversion issue in deep underwater operation
The problem of transmitting response is caused to greatly reduce, so as to provide a kind of deep water that can obtain larger transmitting voltage response, broadband is changed
It can device.
To achieve these goals, the present invention provides a kind of more piezoelectric ceramic stacks to encourage deepwater wideband energy converters, including
Piezoelectric ceramic stack 1, lower tubular end cap 2, prestressing force screw rod 3 and upper tubular end cap 4；Wherein,
The piezoelectric ceramic stack 1 have it is multiple, any piezoelectric ceramic stack 1 by prestressing force screw rod 3 be mounted on the lower tubular
Between end cap 2 and upper tubular end cap 4, it is connected in parallel between the multiple piezoelectric ceramic stack 1；The lower tubular end cap 2 is most
There are spacing between upper end and the bottom of upper tubular end cap 4.
In above-mentioned technical proposal, elastic entrant sound chamber 5 and pliable pipe 6 are further included；Wherein, the elastic entrant sound chamber 5 is located at
Except the piezoelectric ceramic stack 1 that installs, lower tubular end cap 2, prestressing force screw rod 3, upper tubular end cap 4, in it described in installation
Pliable pipe 6.
In above-mentioned technical proposal, the outer water sealed layer for being arranged with waterproof of the piezoelectric ceramic stack 1；The water sealed layer uses
Polyurethane adhesive or vulcanization rubber are made, filled with the electrical isolation substance including castor oil in water sealed layer.
In above-mentioned technical proposal, 5 inside of elasticity entrant sound chamber is full of the electric insulation including castor oil, silicone oil
Matter, substance and the elasticity entrant sound chamber 5 of 5 inside of elasticity entrant sound chamber form watertight structure together.
In above-mentioned technical proposal, the lower tubular end cap 2, upper tubular end cap 4 centre position be provided with circular hole.
In above-mentioned technical proposal, the number of the piezoelectric ceramic stack 1 is between 4-12.
In above-mentioned technical proposal, one prestressing force screw rod 3 is installed in the center of a piezoelectric ceramic stack 1.
In above-mentioned technical proposal, multiple prestressing force screw rods 3 are uniformly installed in the surrounding of a piezoelectric ceramic stack 1.
The advantage of the invention is that：
The class pipe overflow energy converter that the energy converter of the present invention is formed for more piezoelectric ceramic stacks and trepanning end cap utilizes its pressure
The multiple modal vibrations of pile and upper and lower cover plates realize the big broadband emission of energy converter, using 33 operating modes of multiple pressure pile,
And reduce the larger transmitting brought by the inversion issue of circular tube structure radial vibration and respond the problem of reducing, it obtains powerful
Transmitting.
Description of the drawings
Fig. 1 is the structural representation of more piezoelectric ceramic stacks excitation deepwater wideband energy converter of the present invention in one embodiment
Figure；
Fig. 2 is the structural representation of more piezoelectric ceramic stacks excitation deepwater wideband energy converter of the present invention in another embodiment
Figure；
More piezoelectric ceramic stacks excitation deepwater wideband energy converter that Fig. 3 is the present invention applies a kind of prestressed mode；
Fig. 4 is more piezoelectric ceramic stacks excitation deepwater wideband energy converter transmitting voltage response figure of the present invention.
Attached drawing identifies
The 1 tubular end cap of piezoelectric ceramic stack 2 times
Tubular end cap on 3 prestressing force screw rods 4
5 elastic 6 pliable pipes of entrant sound chamber
Specific embodiment
In conjunction with attached drawing, the invention will be further described.
With reference to figure 1, in one embodiment, more piezoelectric ceramic stacks of the invention excitation deepwater wideband energy converter includes：Pressure
Electroceramics heap 1, lower tubular end cap 2, prestressing force screw rod 3 and upper tubular end cap 4.Wherein, the piezoelectric ceramic stack 1 has multiple,
Any piezoelectric ceramic stack 1 is mounted on by a prestressing force screw rod 3 between the lower tubular end cap 2 and upper tubular end cap 4, described more
It is connected in parallel between a piezoelectric ceramic stack 1；Between the top of the lower tubular end cap 2 and the bottom of upper tubular end cap 4
There are spacing.
The all parts in the energy converter are described further below.
The piezoelectric ceramic stack 1 can be used polarized PZT-4 or PZT-8 piezoelectric ceramics and realize.
The outer water sealed layer for being arranged with waterproof of the piezoelectric ceramic stack 1.Polyurethane adhesive or sulphur can be used in the water sealed layer
Change rubber to be made, the electrical isolation substance such as castor oil can be filled in water sealed layer.The electric insulation matter can play electrical isolation, heat dissipation,
Pressure balanced effect.
In the embodiment shown in fig. 1, the number of the piezoelectric ceramic stack 1 is 6, these piezoelectric ceramic stacks 1 are same
It is uniform on circumference, symmetrical.In other embodiments, the number of the piezoelectric ceramic stack 1 is between 4-12, these piezoelectricity
Ceramic stack 1 also should be uniform on the same circumference, symmetrical.
It is connected in parallel between the multiple piezoelectric ceramic stack 1 and refers to that the anode of each piezoelectric ceramic stack is connected with anode, born
Pole is connected with cathode.
In the present embodiment, the lower tubular end cap 2, upper tubular end cap 4 centre position be provided with circular hole, it is optional at other
Embodiment in, the two also can not trepanning, but can have a certain impact to sound field performance.
The realization of antirust duralumin can be used in the lower tubular end cap 2, upper tubular end cap 4.
The prestressing force screw rod 3 is rigidly connected respectively with lower tubular end cap 2, upper tubular end cap 4, the prestressing force screw rod 3
Stainless steel realization can be used.
With reference to figure 2, in another embodiment, more piezoelectric ceramic stacks of the invention excitation deepwater wideband energy converter also wraps
It includes：Elastic entrant sound chamber 5 and pliable pipe 6；Wherein, the elastic entrant sound chamber 5 is located at piezoelectric ceramic stack 1, the lower cylinder installed
Except shape end cap 2, prestressing force screw rod 3, upper tubular end cap 4, pliable pipe 6 can be installed in it.
The elasticity entrant sound chamber 5 can play waterproof action.In the present embodiment, the housing of the piezoelectric ceramic stack 1 can
Watertight processing is not done, but the electrical isolation substance including castor oil, silicone oil is full of inside elastic entrant sound chamber 5, and elasticity is thoroughly
Liquid inside the operatic tunes 5 forms watertight structure together with elastic entrant sound chamber 5.Same pressure can be not only kept with periphery water in this way, but also
It will not be short-circuit under high pressure.
The pliable pipe 6 is the closed cylindrical structure that air is filled in a kind of inside, the liquid being located inside elastic entrant sound chamber 5
In, the transmitting response performance of energy converter can be improved with certain resistance to pressure and compressibility using it.
In the embodiment shown in fig. 1, the prestressing force screw rod 3 is located at the inside of piezoelectric ceramic stack 1, i.e., in the embodiment
Piezoelectric ceramic stack using center bolt apply prestressing force, in other embodiments, as shown in figure 3, can be in piezoelectric ceramic stack 1
Surrounding prestressed screw rod 3, the surrounding of each piezoelectric ceramic stack 1 can install 4-6 prestressing force screw rod 3.
Fig. 4 is the transmitting voltage response figure of more piezoelectric ceramic stacks excitation deepwater wideband energy converter of the present invention, which reflects
The acoustic performance of the energy converter of the present invention shows that such structure in the case where meeting deep water work, can obtain broadband, big work(
The acoustic performance of rate.
It should be noted last that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be understood by those of ordinary skill in the art that, to the technical side of the present invention
Case is modified or replaced equivalently, and without departure from the spirit and scope of technical solution of the present invention, should all be covered in the present invention
Right in.
Claims (8)
1. a kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters, which is characterized in that including piezoelectric ceramic stack (1), lower tubular
End cap (2), prestressing force screw rod (3) and upper tubular end cap (4)；Wherein,
The piezoelectric ceramic stack (1) has multiple, and any piezoelectric ceramic stack (1) is by prestressing force screw rod (3) mounted on the lower cylinder
Between shape end cap (2) and upper tubular end cap (4), it is connected in parallel between the multiple piezoelectric ceramic stack (1)；The lower tubular end
There are spacing between the lid the top of (2) and the bottom of upper tubular end cap (4).
2. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1, which is characterized in that further include elasticity
Entrant sound chamber (5) and pliable pipe (6)；Wherein, the elastic entrant sound chamber (5) is positioned at piezoelectric ceramic stack (1), the lower cylinder installed
Except shape end cap (2), prestressing force screw rod (3), upper tubular end cap (4), the installation pliable pipe in the elastic entrant sound chamber (5)
(6)。
3. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1, which is characterized in that the piezoelectricity pottery
The outer water sealed layer for being arranged with waterproof of porcelain heap (1)；The water sealed layer is made of polyurethane adhesive or vulcanization rubber, in water sealed layer
Filled with the electrical isolation substance including castor oil.
4. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 2, which is characterized in that the elasticity is thoroughly
The electrical isolation substance being full of inside the operatic tunes (5) including castor oil or silicone oil including, the internal substance of the elasticity entrant sound chamber (5) and
The elasticity entrant sound chamber (5) forms watertight structure together.
5. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1 or 2, which is characterized in that under described
Tubular end cap (2), upper tubular end cap (4) centre position be provided with circular hole.
6. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1 or 2, which is characterized in that the pressure
The number of electroceramics heap (1) is between 4-12.
7. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1, which is characterized in that in a pressure
The center of electroceramics heap (1) is installed by one prestressing force screw rod (3).
8. more piezoelectric ceramic stack excitation deepwater wideband energy converters according to claim 1, which is characterized in that in a pressure
The surrounding of electroceramics heap (1) uniformly installs multiple prestressing force screw rods (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033314.1A CN104811879B (en) | 2014-01-23 | 2014-01-23 | A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033314.1A CN104811879B (en) | 2014-01-23 | 2014-01-23 | A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104811879A CN104811879A (en) | 2015-07-29 |
| CN104811879B true CN104811879B (en) | 2018-07-03 |
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| CN201410033314.1A Expired - Fee Related CN104811879B (en) | 2014-01-23 | 2014-01-23 | A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190103821A1 (en) * | 2016-04-07 | 2019-04-04 | Microfine Materials Technologies Pte Ltd | Displacement Connectors of High Bending Stiffness and Piezoelectric Actuators Made of Such |
| CN106205583B (en) * | 2016-08-31 | 2023-06-16 | 北京越音速科技有限公司 | Piezoelectric actuator and low-frequency underwater acoustic transducer |
| CN106481336B (en) * | 2016-10-31 | 2023-08-11 | 重庆博创声远科技有限公司 | Acoustic wave transmitting transducer and drill collar mounting structure thereof |
| CN106644043B (en) * | 2016-12-14 | 2019-08-23 | 中国船舶重工集团公司第七一0研究所 | A kind of submarine mine modular insert characteristics of conformal acoustic array |
| CN113333864A (en) * | 2021-06-08 | 2021-09-03 | 北京航空航天大学 | Multi-mode ultrasonic vibration auxiliary machining device and method |
| CN113634474B (en) * | 2021-08-24 | 2023-06-23 | 深圳市特力威科技有限公司 | Multidimensional ultrasonic vibration head and machine tool with same |
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| CN101178894A (en) * | 2006-11-10 | 2008-05-14 | 中国科学院声学研究所 | Double resonant vibrations and double promptings longitudinal vibration transducer |
| CN102097093A (en) * | 2010-11-26 | 2011-06-15 | 中国科学院声学研究所 | Deepwater wideband spherical transducer |
| CN103021396A (en) * | 2012-12-17 | 2013-04-03 | 中国船舶重工集团公司第七一五研究所 | Deep-water broadband transducer with ultralow backward radiation |
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2014
- 2014-01-23 CN CN201410033314.1A patent/CN104811879B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178894A (en) * | 2006-11-10 | 2008-05-14 | 中国科学院声学研究所 | Double resonant vibrations and double promptings longitudinal vibration transducer |
| CN102097093A (en) * | 2010-11-26 | 2011-06-15 | 中国科学院声学研究所 | Deepwater wideband spherical transducer |
| CN103021396A (en) * | 2012-12-17 | 2013-04-03 | 中国船舶重工集团公司第七一五研究所 | Deep-water broadband transducer with ultralow backward radiation |
Non-Patent Citations (1)
| Title |
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| 多谐振腔宽带换能器研究;张振雨;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20090630;正文第1.4.3节 * |
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Granted publication date: 20180703 Termination date: 20190123 |