CN2643591Y - Underwater loudspeaker - Google Patents
Underwater loudspeaker Download PDFInfo
- Publication number
- CN2643591Y CN2643591Y CN 03266591 CN03266591U CN2643591Y CN 2643591 Y CN2643591 Y CN 2643591Y CN 03266591 CN03266591 CN 03266591 CN 03266591 U CN03266591 U CN 03266591U CN 2643591 Y CN2643591 Y CN 2643591Y
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- board
- phonation board
- driver
- vocal
- phonation
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Abstract
The utility model pertains to the field of sound system and relates to a loudspeaker, in particular to an underwater speaker consisting of a drive, a vocal board, a sealed shell and a cable. Wherein, a drive element of the drive is made from a rare earth magnetostriction material, the vocal board can adopt any of a composite vocal board made up of a uniplanar vocal board, a single spherical vocal board, a biplanar vocal board, a bispherical vocal board, a concave vocal board or a convex vocal board, and the cable adopts a conventional cable; moreover, the vocal board and the sealed shell can adopt any of a metal plate, a ceramic plate, a rigid plastic board or a woodboard.
Description
Technical field
The utility model belongs to the stereo set field, relates to loud speaker, particularly pallesthesiometer.
Background technology
Under water or moist the occasion stereo set or the transaudient equipment that use, need airtight or bear under the pressure, particularly deep water conditions of water, bear high hydraulic pressure, normally work guaranteeing.The driving element of existing pallesthesiometer is to adopt piezoceramic material to make.Piezoceramic material can produce deformation under the electric field driven outside, utilizes the piezoelectric actuator of these characteristics can vibrate under the effect of alternating electric field, and produces sound (CN2047871U, CN2033174U).The major defect of this piezoelectric actuator is: piezoceramic material is a highly-resistant material, use the increase of the degree of depth along with pallesthesiometer, the case material thickness of loud speaker also certainly will increase, actuating force that needs and driving electric field strengthen, and that the Oscillation Amplitude of driver is a case material thickness is relevant, in order to add large amplitude, need to strengthen the thickness of material or the stack number of plies of material, therefore, must strengthen driving voltage, in order to reach available electrical power effect, its voltage need be increased to hectovolt, even go up kilovolt, this just gives under water or the territory insulating protection of the pallesthesiometer in the wet environment brings difficulty, has also improved device cost simultaneously greatly.
Summary of the invention
The utility model purpose is to provide that a kind of driving voltage is low, power is big, energy conversion efficiency is high, and the big pallesthesiometer of power output.
At above-mentioned purpose, main technical schemes of the present utility model is as follows:
Pallesthesiometer described in the utility model is made up of driver, phonation board, closure casing and cable.
0000 driver is the driver that driving element adopts rare earth ultra-magnetostriction material to make, and phonation board can be monoplane phonation board, single sphere phonation board, biplane phonation board, two sphere phonation board, biplane and concave or convex face and forms in the compound phonation board any; Closure casing can be any in dome-type, plate, the column type; Cable can be selected normal cable for use.
It is that the driver of driving element is by U.S. ETREMA company exploitation that the utility model adopts with the rare earth ultra-magnetostriction material.This driver is by rare earth ultra-magnetostriction material rod, drive coil, bias magnetic field, pretightening butterfly spring, vibration export bar and compress end cap and form.(“MACHINE?DESIGE”August?8，1994，V66，No15，P18)。
The phonation board of this pallesthesiometer and the material of closure casing can be selected any in metallic plate, ceramic wafer, rigid plastic sheet, the wood based panel for use, and metallic plate can be in aluminum material, copper material, steel material, the titanium material any.
Phonation board also can be used as closure casing as phonation board the time.
The utility model pallesthesiometer can reach following technical parameter: frequency response 0.2～20KHz, electrical power is more than 15 watts, underwateracoustic power 180db, 4 ohm or 8 ohm of dc impedances, about 1 kilogram of weight.
Compared with prior art, the utlity model has following advantage:
1. the driving element of the driver that the utility model adopted is to make with rare earth ultra-magnetostriction material, it is big that this material has a magneto-strain coefficient, can reach 2400ppm, be 5 times of piezoelectric, be 100 times of traditional magnetostrictive material, therefore can significantly improve Oscillation Amplitude, acoustics can significantly improve.
2. because rare earth ultra-magnetostriction material is the field drives deformable material, and driving magnetic field is produced by coil, and the coil static impedance is 4～8 ohm,, has only and severally lie prostrate tens volts so driving voltage is low.So low-voltage under water or the use of wet environment safety guarantee is provided.
3. this pallesthesiometer power is big, the energy conversion efficiency height, and acoustic pressure is powerful.This is that the energy density of the rare earth ultra-magnetostriction material that adopts of driver is big, output pressure can reach 20MPa, can promote phonation board and produce the cylinder vibration, the cylinder sound wave takes place, underwateracoustic intensity can reach more than the 180db, and sound is even, and propagation distance is far away, swept area is big, and power can reach several watts to last kilowatt.
4. the reliability height is non-maintaining, does not have to lose efficacy.The selected rare earth ultra-magnetostriction material of driver does not need as piezoelectric, needs before the use to polarize in advance, can be when not using temperature improve and the material polarization field is disappeared and cause drives fail.
5. compressive resistance is big, and corrosion resistance is strong, can be suitable for worse environment.The utility model selects for use metal or hard material to make phonation board and housing, therefore can bear very big pressure.Can select for use high material of corrosion resistance or material surface to carry out preservative treatment in addition, so in corrosive environment, use.
6. load impedance is little, can directly be connected with common standard sound equipment power amplifier, uses simply, does not need special driving power source, can adopt the existing standard power amplifier fully.
Embodiment
Description of drawings
Fig. 1 is the structural representation of dome-type plane phonation board pallesthesiometer.
Fig. 2 is the structural representation of dome-type sphere phonation board pallesthesiometer.
Fig. 3 is the structural representation of column type plane phonation board pallesthesiometer.
Fig. 4 is the structural representation of column type biplane phonation board pallesthesiometer.
Fig. 5 is the structural representation of two dome-type phonation board pallesthesiometers.
Fig. 6 is the structural representation of the compound phonation board pallesthesiometer of biplane and concave or convex
In above-mentioned Fig. 1 to Fig. 6,1 is driver, and 2 is phonation board, and 3 is closure casing, and 4 is cable.Pallesthesiometer is made up of driver 1, phonation board 2, closure casing 3 and cable 4.The driving element of driver 1 all adopts rare earth ultra-magnetostriction material to make.
In dome-type plane phonation board pallesthesiometer shown in Figure 1, phonation board 2 is dull and stereotyped, closure casing 3 is a ball-type, and be connected with phonation board 2, driver 1 is connected with phonation board 2, cable 4 is connected with the driver drives coil and is fixed on the closure casing 3, during work, drives phonation board 2 by driver 1.
In dome-type sphere phonation board pallesthesiometer shown in Figure 2, phonation board 2 is a ball-type, and closure casing 3 is the plane, both are connected, and driver 1 is connected with phonation board 2, and cable 4 is connected with the driver drives coil and is fixed on the shell 3, during work, drive ball-type phonation board 2 by driver 1.
In column type plane phonation board pallesthesiometer shown in Figure 3, phonation board 2 is dull and stereotyped, and closure casing 3 is a column type, and both are connected.Driver 1 is connected with plane phonation board 2, and drives dull and stereotyped phonation board.Cable 4 is connected with the driver drives coil and is fixed on the shell 3.
In column type biplane phonation board pallesthesiometer shown in Figure 4, phonation board 2 is the plane, closure casing 3 is a column type, two phonation boards 2 are connected with column type closure casing 3 vertical symmetries, its driver 1 is the driver of two-way output, the delivery at two ends is connected with two phonation boards 2 respectively, drives two phonation boards during work simultaneously, and cable 4 is connected with the driver drives coil and is fixed on the shell 3.
In the schematic diagram of two dome-type phonation board pallesthesiometers shown in Figure 5, phonation board 2 is two hemisphere faces, these two closure casings that hemisphere face also is this loud speaker, and driver 1 has two deliveries, and two deliveries link to each other with two hemisphere face phonation boards respectively.During work, two deliveries drive two phonation boards 2 simultaneously.Cable 4 is connected with the driver drives coil and is fixed on the dome-type phonation board 2.
In compound phonation board pallesthesiometer schematic diagram shown in Figure 6, phonation board 2 is sealed mutually by the phonation board of two plane phonation boards and two concave or convexs and connects to form, and phonation board 2 is a phonation board, also is the closure casing 3 of this pallesthesiometer.Driver 1 has two deliveries, and two deliveries are connected with two plane phonation boards respectively.During owing to driver 1 work, produce extensional vibration, cause curved the rising of phonation board generation of concave or convex to be out of shape and sounding.Cable 4 is connected with the driver drives coil and is fixed on the phonation board 2.
Claims (5)
1. a pallesthesiometer is made up of driver (1), phonation board (2), closure casing (3) and cable (4), it is characterized in that:
1. driver (1) driver that adopts rare earth ultra-magnetostriction material to make for driving element;
2. phonation board (2) be in the compound phonation board formed of single dull and stereotyped phonation board, single sphere phonation board, biplane phonation board, two sphere phonation board, biplane and concave or convex face any;
3. closure casing (3) can be in dome-type, plate, the column type any.
2. according to the described pallesthesiometer of claim, it is characterized in that driver (1) can adopt in unidirectional delivery driver or the two-way delivery driver any.
3. pallesthesiometer according to claim 1 is characterized in that phonation board (2) both can be phonation board, can be closure casing again.
4. pallesthesiometer according to claim 1 is characterized in that phonation board and closure casing material can be in metallic plate, ceramic wafer, rigid plastic sheet, the wood based panel any.
5. according to claim 1,4 described pallesthesiometers, its feature can be in aluminum material, copper material, steel material, the titanium material any at the metallic plate as phonation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266591 CN2643591Y (en) | 2003-07-04 | 2003-07-04 | Underwater loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266591 CN2643591Y (en) | 2003-07-04 | 2003-07-04 | Underwater loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643591Y true CN2643591Y (en) | 2004-09-22 |
Family
ID=34298342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266591 Expired - Fee Related CN2643591Y (en) | 2003-07-04 | 2003-07-04 | Underwater loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643591Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561575C (en) * | 2006-06-23 | 2009-11-18 | 北京大学 | Dish type transmitting transducer |
| CN101949733A (en) * | 2010-08-13 | 2011-01-19 | 浙江大学 | Piezoelectric patch type detectoscope for deepwater soundwave detection |
| CN114939522A (en) * | 2022-04-18 | 2022-08-26 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Pre-stress applying system, method and medium for disc-shaped transducer |
-
2003
- 2003-07-04 CN CN 03266591 patent/CN2643591Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561575C (en) * | 2006-06-23 | 2009-11-18 | 北京大学 | Dish type transmitting transducer |
| CN101949733A (en) * | 2010-08-13 | 2011-01-19 | 浙江大学 | Piezoelectric patch type detectoscope for deepwater soundwave detection |
| CN101949733B (en) * | 2010-08-13 | 2011-12-21 | 浙江大学 | Piezoelectric patch type detectoscope for deepwater soundwave detection |
| CN114939522A (en) * | 2022-04-18 | 2022-08-26 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Pre-stress applying system, method and medium for disc-shaped transducer |
| CN114939522B (en) * | 2022-04-18 | 2024-05-07 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Prestress application system, method and medium for disk-shaped transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |