CN108769869A - A kind of deep water bending disk energy converter - Google Patents
A kind of deep water bending disk energy converter Download PDFInfo
- Publication number
- CN108769869A CN108769869A CN201810511328.8A CN201810511328A CN108769869A CN 108769869 A CN108769869 A CN 108769869A CN 201810511328 A CN201810511328 A CN 201810511328A CN 108769869 A CN108769869 A CN 108769869A
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- Prior art keywords
- energy converter
- antisoundbaffle
- deep water
- outer housing
- metallic plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000005452 bending Methods 0.000 title abstract description 21
- 239000000919 ceramic Substances 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 6
- 238000007598 dipping method Methods 0.000 abstract description 4
- 235000012431 wafers Nutrition 0.000 description 17
- 230000005284 excitation Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The present invention provides a kind of deep water bending disk energy converter, belongs to underwater sound transmitting transducer technical field.The energy converter includes outer housing；Piezoelectric ceramic wafer；Radiation head；Antisoundbaffle；The structural members such as Inner shells.The bending disk energy converter of the present invention is a kind of deep water bending disk energy converter using the design of overflow-type constitutional balance external and internal pressure principle, when energy converter at work, utilize piezoelectric ceramics and the common bending vibration of metallic plate, simultaneously, since Antisoundbaffle acts on, so that inner chamber body medium and metallic plate lateral media in phase vibration, the radiation energy into water.The characteristics of underwater acoustic transducer is that can be worked with deep water, and low frequency transmitting voltage response is high, light-weight, makes simply, can be applied to the fields such as dipping sonar, hydroacoustic electronic warfare.
Description
Technical field
The present invention relates to a kind of underwater sound transmitters more particularly to a kind of deep water to be bent disk energy converter, can be used for hanging
Sound reproduction receives, the fields such as sonar buoy, hydroacoustic electronic warfare device.
Background technology
In the activities such as exploration and development, marine organisms research and the deep-sea guard of deep seafloor mineral resources, sonar system
System takes on important role, and the deep-sea transducer designs as sonar knowledge are one of key technologies.
The equipment the problem of being considered being operated under abyssal environment is that equipment bears high hydrostatic pressure and performance is good first
It is good.Therefore, the underwater acoustic transducer to work under abyssal environment in design except using with high withstand voltage intensity material in addition to, mainly
It is to solve the problems, such as that pressure discharges using internal and external pressure balance compensation overflow-type structure, while can also widen using the resonance of sap cavity
The frequency band of energy converter.
Low-frequency sound wave is primarily referred to as frequency in 3kHz sound waves below, in fields such as ocean research, development of resources, military affairs
All there is highly important application value.Therefore the development of low-frequency underwater acoustic transducer is particularly important.It can realize water
There are many ways to sonic transducer low frequency radiation, flexural vibration transducer, flextensional transducer, helmholtz resonator common are
Deng.
Using the low-frequency transducer of helmholtz resonator structure, there are Ralph S.Woollet in 1976 than more typical
Et al. develop a series of single piezo discs, the driving of double piezo discs ultralow frequency energy converter.Pass through the curved of flexural piezoelectric disk
Bent vibrational excitation Helmholtz cavity fluid is to external radiation ultralow frequency sound wave.The mono- piezo disc Helmholtz ultralow frequency transducings of 40Hz
The maximum sound source level of device is 196dB, quality 2800kg, maximum working depth 460m.The mono- piezo disc Helmholtz of 65Hz is super
The maximum sound source level of low-frequency transducer is 203dB, quality 1900kg.
Representative in flexural vibration transducer is that the HX-554 types that are used in the works in Pacific Ocean acoustic thermometry are curved
Qu Zhendong ultra-low frequency underwater acoustic transducers.The energy converter mainly surrounds drum-shaped with ten bending strips, passes through the curved of three laminations
The ultralow frequency of bent vibration realizing energy converter emits.Transducer diameter 0.94m, 2300kg in air, weight 700kg in water, resonance frequency
Rate is 75Hz, maximum acoustical power 420W, bandwidth 37.5Hz.
Flexural vibrations type energy converter is most commonly bent disk energy converter, and bending disk energy converter can be divided by two again
It is up and down that piezoelectric ceramic wafer is bonded in that the two-fold chip architecture and centre that a piezoelectric ceramic wafer bonds together, which are rosette,
Three laminations together, this energy converter have the characteristics that low frequency, high-power, small, simple in structure, easy to produce, and
And be easy to match with water and air, low-frequency sound source is can be used as under water used in various detections such as buoy sonar, dipping sonars
In equipment, array use can also be arranged according to certain form.But since the ability of the anti-single side pressure of its oscillator is weaker,
It cannot use in too deep waters.
Invention content
The purpose of the invention is to overcome the shortcomings of existing bending-type underwater acoustic transducer, bending-type underwater acoustic transducer is solved
The weak problem of anti-single side pressure energy provides a kind of size deep water bending disk that is small, light-weight, can working under deep water conditions and changes
Can device, maintain bending-type energy converter can with small size realize low frequencies feature on the basis of, improve overflow-type bending
The transmitting of disk energy converter responds, reliability and resistance to hydrostatic pressure ability etc..
The object of the present invention is achieved like this：Including outer housing, be arranged outer housing upper end circular metal plate, setting
Circular metal plate upper surface piezoelectric ceramic wafer, be arranged circular metal plate lower end inner housing, be arranged under inner housing
The Antisoundbaffle at end, the outer housing upper surface are evenly arranged with class ellipse slot hole, are uniformly arranged on the inner housing periphery
There is rectangular slot hole, form outer chamber between the outer housing inner surface and Antisoundbaffle, Inner shells, outer chamber is grown by class ellipse
Hole and external environment liquid communication, the inner chamber body formed between Antisoundbaffle and metallic plate are realized with outer chamber by rectangular slot hole
Liquid communication.
The invention also includes some such structure features：
1. being additionally provided with circumferential rib among the annular baffle.
2. the radius of the circular metal plate is less than the internal diameter of outer housing.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is a kind of using piezoelectric ceramic wafer and circle gold
Belong to the curve disk-type underwater sound transmitting transducer that plate realizes bending vibration.The underwater acoustic transducer can be worked with deep water, have low frequency,
The features such as transmitting voltage response is high, simple in structure, light-weight can be used for the necks such as dipping sonar, sonar buoy, hydroacoustic electronic warfare device
Domain.
Circumferential distributional class ellipse slot hole, Inner surface of shell on one end end face that the outer housing of the present invention is connected with metallic plate
Upper axial symmetry is distributed rectangular slot hole so that outer chamber is formed between outer housing inner surface and Antisoundbaffle, Inner housing outer surfaces, instead
The inner chamber body formed between acoustic baffle and metallic plate, fluid connection between the two, and then maintain inside energy converter with it is extraneous
Pressure balance improves the compressive resistance of energy converter, increases the working depth of energy converter；When energy converter works, due to anti-sound
Baffle acts on, and the medium and energy converter inner cavity in-vivo medium that the radiating surface that piezoelectric ceramic wafer and metallic plate are constituted is encouraged are same
It mutually vibrates, increases the acoustic radiation ability and radiated of energy converter, and then improve its operating distance.Compared to traditional
It is bent disk energy converter, in addition to having many advantages, such as small size, high-power, low frequency, this transducer architecture design, which also enhances, changes
Can device core element anti-pressure ability, further improve its working depth and operating distance, can apply with deep water Underwater Detection,
Measurement and the technical fields such as exploration of ocean resources and exploitation.
Description of the drawings
Fig. 1 is the deep water bending disk energy converter schematic diagram of the present invention；
Fig. 2 is the deep water bending disk energy converter diagrammatic cross-section of the present invention；
Fig. 3 is the Inner shell structure schematic diagrames of deep water bending disk energy converter；
Fig. 4 is the deep water bending disk energy converter schematic diagram after embedding；
Fig. 5 is the deep water bending disk energy converter diagrammatic cross-section after embedding；
Attached drawing identifies：1- piezoelectric ceramic wafers, 2- circular metal plates, 3- inner housings, 4- Antisoundbaffles, 5- outer housings, 6-
Class ellipse slot hole, the rectangular slot holes of 7-, 8- circumferential ribs, 9- polyurethane.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 2, deep water of the invention is bent disk energy converter, includes mainly piezoelectric ceramic wafer 1, round
The structures such as metallic plate 2, Inner shells 3, Antisoundbaffle 4.Outer housing and Inner shells use cylindrical housings；The circular metal plate
Positioned at outer housing one end, metallic plate radius is less than outer housing internal diameter；The piezoelectric ceramic wafer is located on the outside of metallic plate；The Inner
It is connected on the inside of shell and metallic plate；The Antisoundbaffle is connected with Inner shells.
As shown in Figure 1, the inner housing of the present invention uses endless metal structure, axial symmetry distribution is rectangular on inner housing annular surface
Slot hole, outer housing 5 are cylindrical metal container, and the closing of one end end face is isolated, one end and circular metal plate phase with external environment
Even, the circumferentially distributed class ellipse slot hole in circular metal plate periphery.
As shown in Figure 2 to Figure 3, it is formed between outer housing inner surface of the invention and Antisoundbaffle, Inner housing outer surfaces outer
Cavity, forms inner chamber body between Antisoundbaffle and metallic plate, outer chamber is connected by the oval long pore structure 6 of class with external environment liquid
Logical, inner chamber body is connected to outer chamber by 7 structured liquids of rectangular slot hole.
Circular metal plate is process by duralumin, and frosted processing is carried out on the outside of metallic plate, and it is recessed to carry annular on the inside of metallic plate
Both slot, metal-sheet edges thickness are more than metallic plate center thickness, and metal-sheet edges width is equal to annular inner casing body thickness, convenient for
Bonding.
Piezoelectric ceramic wafer is adhered on the outside of circular metal plate, is processed using the polarized PZT-4 piezoelectric ceramics of thickness direction
It forms, disk surfaces are coated with silver electrode, therefore have good inverse piezoelectric effect.
Antisoundbaffle is the circular metal structure that air is served as a contrast, and the upper surface of Antisoundbaffle is connected with inner chamber body, anti-baffle
The lower surface of plate is connected with outer chamber, and for Antisoundbaffle intracavitary there are one annular rib structure 8, annular rib structure and Antisoundbaffle are concentric
Coaxially, the rigidity of Antisoundbaffle is thereby increased.
As shown in Fig. 4 to Fig. 5, it is poly- that one layer of circle is covered on the radiating surface that piezoelectric ceramic wafer and circular metal plate are constituted
Urethane rubber so that piezoelectric ceramics insulate with external environment.
Mosaic is bent the basic step that disk underwater acoustic transducer makes：
1. with welding mode by two conducting wires respectively with 1 upper surface of piezoelectric ceramic wafer and circular metal plate upper surface phase
Even, piezoelectric ceramic wafer 1 is adhered to the upper surface of circular metal plate 2 with epoxy resin, ensures the two concentric co-axial.
2. the lower surface of circular metal plate 2 is Nian Jie with 3 one end of inner housing, the upper surface of Antisoundbaffle 4 and inner housing 3 are another
One end is bonded, and ensures circular metal plate 2,4 concentric co-axial of inner housing 3 and Antisoundbaffle.
3. 2 annular surface of circular metal plate is adhered to one end that outer housing 5 carries class ellipse slot hole 6, ensure outer housing 5
End face is located in the same horizontal plane with 2 upper surface of circular metal plate.
After the energy converter of the present invention enters water, due to outer chamber inside energy converter and inner chamber body fluid connection, piezoelectric ceramics
The radiating surface constituted on the outside of disk and metallic plate is balanced with internal cavity pressure.When energy converter works in water, make pottery to piezoelectricity
Porcelain disk 1 applies alternating electric field.Under the excitation of alternating electric field, it is set to generate planar expanded vibration, due to itself and metallic plate phase
Even, metal-sheet edges freely-supported, and then encourage piezoelectric ceramics and the common bending vibration of metallic plate, the radiation energy into water.Meanwhile gold
Belong to plate lower surface with interior sap cavity to be connected, interior sap cavity medium is generated vibration by its excitation, due to the inverting function of Antisoundbaffle so that
Interior sap cavity medium is identical as metallic plate lateral media vibration phase, and then enhances the acoustic radiation ability of energy converter, improves it
Transmitting sound power.
The operation principle of the present invention：
The bending disk energy converter of the present invention is a kind of deep water using the design of overflow-type constitutional balance external and internal pressure principle
It is bent disk energy converter.After energy converter enters water, due to outer chamber inside energy converter and inner chamber body fluid connection, piezoelectric ceramics
The radiating surface constituted on the outside of disk and metallic plate is balanced with internal cavity pressure.Energy converter at work, to the piezoelectric ceramics
Disk applies alternating voltage load, it is made to generate planar expanded vibration, since it is connected with metallic plate, metal-sheet edges freely-supported,
And then encourage piezoelectric ceramics and the common bending vibration of metallic plate, the radiation energy into water.Meanwhile metallic plate lower surface and interior sap cavity
It is connected, interior sap cavity medium is generated vibration by its excitation, due to the inverting function of Antisoundbaffle so that interior sap cavity medium and metallic plate
Lateral media vibration phase is identical, and then enhances the acoustic radiation ability of energy converter, improves its transmitting sound power.
The present invention includes outer housing, piezoelectric ceramic wafer, circular metal plate, inner housing and Antisoundbaffle；The outer housing
And Inner shells use cylindrical housings；It is characterized in that：The circular metal plate is located at outer housing one end, and metallic plate radius is small
In outer housing internal diameter；The piezoelectric ceramic wafer is located on the outside of metallic plate；It is connected on the inside of the Inner shells and metallic plate；It is described anti-
Acoustic baffle is connected with Inner shells.The outer housing is connected on the end face of one end circumferential distributional class ellipse slot hole with metallic plate.It is described
Outer chamber is formed between outer housing inner surface and Antisoundbaffle, Inner shells, outer chamber can be with external environment by long pore structure
Liquid communication.It is smooth on the outside of metallic plate, annular groove is carried on the inside of metallic plate, it is thick that metal-sheet edges thickness is more than metallic plate center
Degree.The piezoelectric ceramic wafer is located on the outside of metallic plate, piezoelectric ceramic wafer and metallic plate concentric co-axial.The piezoelectric ceramics and
Circular metal plate constitute radiating surface can into water radiation energy.The Inner shells are connected with circular metal plate, metallic plate
Axial symmetry is distributed rectangular slot hole on Inner surface of shell between Antisoundbaffle.The Antisoundbaffle is connected with Inner shells, anti-sound
The inner chamber body formed between baffle and metallic plate can be with liquid communication by rectangular slot hole with outer chamber.The Antisoundbaffle is sky
The circular metal structure that gas is served as a contrast, the upper surface of Antisoundbaffle are connected with inner chamber body, lower surface and the outer chamber phase of Antisoundbaffle
Even.There are one annular rib structure, annular rib structure and Antisoundbaffle concentric co-axials for the Antisoundbaffle intracavitary.
To sum up, the present invention discloses a kind of curve disk-type underwater acoustic transducer can be used for deep water transmitting sound wave, belongs to the underwater sound
Transmitting transducer technical field.The energy converter includes outer housing；Piezoelectric ceramic wafer；Radiation head；Antisoundbaffle；The knots such as Inner shells
Component.The bending disk energy converter of the present invention is bent using a kind of deep water of overflow-type constitutional balance external and internal pressure principle design
Disk energy converter, when energy converter at work, using piezoelectric ceramics and the common bending vibration of metallic plate, simultaneously as anti-baffle
Plate acts on so that inner chamber body medium and metallic plate lateral media in phase vibration, the radiation energy into water.The spy of the underwater acoustic transducer
For point for that can be worked with deep water, low frequency transmitting voltage response is high, light-weight, makes simply, can be applied to dipping sonar, hydroacoustic electronic warfare
Equal fields.
Claims (3)
1. a kind of deep water is bent disk energy converter, it is characterised in that：Including outer housing, circular metal in outer housing upper end is set
Plate, be arranged circular metal plate upper surface piezoelectric ceramic wafer, be arranged including the inner housing of circular metal plate lower end, setting
The Antisoundbaffle of shell lower end, the outer housing upper surface are evenly arranged with class ellipse slot hole, on the inner housing periphery
It is even to be provided with rectangular slot hole, outer chamber is formed between the outer housing inner surface and Antisoundbaffle, Inner shells, outer chamber passes through class
Oval slot hole and external environment liquid communication, the inner chamber body formed between Antisoundbaffle and metallic plate pass through rectangular length with outer chamber
Realize liquid communication in hole.
2. a kind of deep water according to claim 1 is bent disk energy converter, it is characterised in that：Among the annular baffle also
It is provided with circumferential rib.
3. a kind of deep water according to claim 1 or 2 is bent disk energy converter, it is characterised in that：The circular metal plate
Radius be less than outer housing internal diameter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018103185686 | 2018-04-11 | ||
| CN201810318568 | 2018-04-11 |
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| Publication Number | Publication Date |
|---|---|
| CN108769869A true CN108769869A (en) | 2018-11-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810511328.8A Pending CN108769869A (en) | 2018-04-11 | 2018-05-25 | A kind of deep water bending disk energy converter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974664A (en) * | 2019-04-28 | 2019-07-05 | 天津理工大学 | Universal level-metre |
| CN111145711A (en) * | 2019-12-20 | 2020-05-12 | 沈阳辽海装备有限责任公司 | Underwater pressure relief sound reflecting baffle |
| CN113301478A (en) * | 2021-05-16 | 2021-08-24 | 西北工业大学 | Reinforced concave cylinder type flextensional transducer structure and method |
| CN114183324A (en) * | 2021-11-23 | 2022-03-15 | 中国船舶重工集团公司第七一五研究所 | Deep water pressure compensation type extremely-low-frequency bending transmitting transducer system |
| WO2021252041A3 (en) * | 2020-03-16 | 2022-05-12 | Tuncdemir Safakcan | Class viii flextensional transducers and method of assembly |
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2018
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974664A (en) * | 2019-04-28 | 2019-07-05 | 天津理工大学 | Universal level-metre |
| CN111145711A (en) * | 2019-12-20 | 2020-05-12 | 沈阳辽海装备有限责任公司 | Underwater pressure relief sound reflecting baffle |
| CN111145711B (en) * | 2019-12-20 | 2023-12-26 | 沈阳辽海装备有限责任公司 | Underwater pressure-releasing anti-sound baffle |
| WO2021252041A3 (en) * | 2020-03-16 | 2022-05-12 | Tuncdemir Safakcan | Class viii flextensional transducers and method of assembly |
| CN113301478A (en) * | 2021-05-16 | 2021-08-24 | 西北工业大学 | Reinforced concave cylinder type flextensional transducer structure and method |
| CN114183324A (en) * | 2021-11-23 | 2022-03-15 | 中国船舶重工集团公司第七一五研究所 | Deep water pressure compensation type extremely-low-frequency bending transmitting transducer system |
| CN114183324B (en) * | 2021-11-23 | 2023-07-04 | 中国船舶重工集团公司第七一五研究所 | Deep water pressure compensation type ultra-low frequency bending type transmitting transducer system |
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