CN112040380A - Ultralow frequency electrodynamic sound source coated by integral watertight rubber mold - Google Patents
Ultralow frequency electrodynamic sound source coated by integral watertight rubber mold Download PDFInfo
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- CN112040380A CN112040380A CN202010921224.1A CN202010921224A CN112040380A CN 112040380 A CN112040380 A CN 112040380A CN 202010921224 A CN202010921224 A CN 202010921224A CN 112040380 A CN112040380 A CN 112040380A
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- Prior art keywords
- positioning
- positioning piece
- cover plate
- sound source
- rubber
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- 230000005520 electrodynamics Effects 0.000 title claims abstract description 28
- 239000004636 vulcanized rubber Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention provides an ultra-low frequency electrodynamic sound source coated by an integral watertight rubber die, which comprises a rubber air bag, a driving vibrator, a vulcanized rubber film and a positioning guide mechanism, wherein the vulcanized rubber film is arranged at the opening of the rubber air bag, the rubber air bag and the vulcanized rubber film are compressed and fixed through a compression ring, the driving vibrator is arranged in a space enclosed by the rubber air bag and the vulcanized rubber film, and comprises a magnetic circuit, a permanent magnet, a coil, a cover plate and a spiral spring; the positioning guide mechanism comprises a first positioning piece, a positioning rod, a linear bearing and a second positioning piece, the first positioning piece is arranged at the center of the magnetic circuit, the second positioning piece is arranged in the first positioning piece, the linear bearing is fixed in the second positioning piece, the rear end of the positioning rod is inserted into the linear bearing, the front end of the positioning rod is fixedly connected with the cover plate, the spiral spring is sleeved on the second positioning piece, and the two ends of the spiral spring are respectively connected with the second positioning piece and the positioning rod. The invention uses the rubber air bag to wholly coat the driving vibrator to realize water tightness and air tightness; the positioning precision is good, and the safe reliability is high.
Description
Technical Field
The invention belongs to the technical field of electric sound sources, and particularly relates to an ultralow-frequency electric sound source coated by an integral watertight rubber mold.
Background
The existing ultralow frequency electrodynamic sound source mainly comprises a metal shell, a driving vibrator and a rubber air bag. Wherein the metal shell and the driving vibrator account for most of the weight. In the application field of small underwater unmanned underwater vehicles and the like, the requirements on the size and weight of loads such as ultralow frequency electrodynamic sound sources and the like are extremely strict, and the size and weight of the loads need to be reduced as much as possible. In this application field, the ultra-low frequency electrodynamic sound source is often too large in size and heavy in weight to meet the application requirements. In addition, these application fields require the load to work continuously for a long time, and the safety and reliability of the load are high.
Disclosure of Invention
In view of the above, the invention aims to provide an ultra-low frequency electrodynamic sound source covered by an integral watertight rubber mold, and a rubber air bag is used for integrally covering a driving vibrator to realize watertightness and air tightness; the positioning precision is good, and the safe reliability is high.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an ultralow-frequency electrodynamic sound source coated by an integral watertight rubber die comprises a rubber air bag, a driving vibrator, a vulcanized rubber film and a positioning guide mechanism, wherein the vulcanized rubber film is arranged at an opening at the front end of the rubber air bag, the rubber air bag and the vulcanized rubber film are compressed and fixed through a compression ring, the driving vibrator is arranged in a space enclosed by the rubber air bag and the vulcanized rubber film, and the driving vibrator comprises a magnetic circuit, a permanent magnet, a coil, a cover plate and a spiral spring; the inner wall of the rubber air bag is fixedly bonded on the magnetic circuit, and the coil is fixed on the edge of the cover plate and is positioned in an air gap of the magnetic circuit; the permanent magnet is embedded in a groove in the magnetic circuit, and the permanent magnet and the magnetic circuit are arranged coaxially;
the positioning guide mechanism comprises a first positioning piece, a positioning rod, a linear bearing and a second positioning piece, wherein the first positioning piece is arranged at the center of the magnetic circuit and is fixedly adhered with the magnetic circuit; a gap is arranged between the front end face of the first positioning piece and the cover plate, and a plurality of channels communicated with the rubber air bag and the gap between the first positioning piece and the cover plate are arranged in the first positioning piece.
Furthermore, the ultralow frequency electrodynamic type sound source also comprises a metal ring, the metal ring is fixed on the front end face of the magnetic circuit, and the compression ring is fixedly connected with the metal ring through a plurality of screws.
Further, the vulcanized rubber film covers the outer surface of the cover plate completely.
Further, a vulcanized rubber film covers the edge of the cover plate.
Furthermore, the margin moving along with the cover plate is reserved at the edge of the cover plate of the vulcanized rubber film.
Furthermore, a filling member is bonded to the inner channel wall of the first positioning member.
Furthermore, the second positioning part is of a hollow cylindrical structure, a stepped hole for installing and positioning the linear bearing is formed in the second positioning part, a positioning step for installing and positioning the first positioning part is arranged on the outer surface of the second positioning part, and a thread section matched with the spiral spring is processed on the outer surface of the positioning step.
Furthermore, the second positioning piece and the first positioning piece are fixed in a bonding mode or a threaded connection mode.
Furthermore, the positioning rod and the cover plate are fixed in a bonding mode or a threaded connection mode.
Furthermore, the locating rod and the cover plate are integrally formed.
Compared with the prior art, the ultra-low frequency electrodynamic sound source coated by the integral watertight rubber mold has the following advantages:
1. this application uses the whole cladding of rubber gasbag drive oscillator to realize watertight and airtight, replaces traditional utilization metal casing to realize watertight and airtight, can alleviate the size and the weight of sound source by a wide margin.
2. The linear bearing positioning coil is used in the vibration system, the positioning accuracy is good, the introduced friction resistance is small, and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic structural view of an ultra-low frequency electrodynamic sound source covered by an integral watertight rubber mold according to an embodiment of the present invention.
Description of reference numerals:
the method comprises the following steps of 1-a rubber air bag, 2-a magnetic circuit, 3-a permanent magnet, 4-a coil, 5-a metal ring, 6-a pressure ring, 7-a cover plate, 8-a first positioning piece, 9-a vulcanized rubber mold, 10-a positioning rod, 11-a spiral spring, 12-a screw, 13-a linear bearing, 14-a filling piece and 15-a second positioning piece.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 1, an ultralow frequency electrodynamic sound source coated by an integral watertight rubber mold comprises a rubber air bag 1, a driving vibrator, a vulcanized rubber film 9, a positioning guide mechanism and a metal ring 5, wherein the vulcanized rubber film 9 is arranged at an opening at the front end of the rubber air bag 1, the rubber air bag 1 and the vulcanized rubber film 9 are pressed and fixed through a pressing ring 6, the driving vibrator is arranged in a space enclosed by the rubber air bag 1 and the vulcanized rubber film 9, and the driving vibrator comprises a magnetic circuit 2, a permanent magnet 3, a coil 4, a cover plate 7 and a spiral spring 11; the inner wall of the rubber air bag 1 is adhered and fixed on the magnetic circuit 2, and the coil 4 is fixed on the edge of the cover plate 7 and is positioned in an air gap of the magnetic circuit 2; the permanent magnet 3 is embedded in a groove in the magnetic circuit 2, the permanent magnet 3 and the magnetic circuit 2 are arranged coaxially, the metal ring 5 is fixed on the front end face of the magnetic circuit 2, and the pressure ring 6 is fixedly connected with the metal ring 5 through a plurality of screws 12;
the positioning guide mechanism comprises a first positioning piece 8, a positioning rod 10, a linear bearing 13 and a second positioning piece 15, wherein the first positioning piece 8 is arranged at the center of the magnetic circuit 2, the first positioning piece 8 is fixedly bonded with the magnetic circuit 2, the second positioning piece 15 is arranged inside the first positioning piece 8 and is fixedly bonded with the first positioning piece 8, the linear bearing 13 is fixed in the second positioning piece 15, the rear end of the positioning rod 10 is inserted into the linear bearing 13, the front end of the positioning rod 10 is fixedly connected with the cover plate 7, a threaded section is arranged at the front section of the positioning rod 10, a threaded section is also arranged at the rear section of the second positioning piece 15, the spiral spring 11 is sleeved on the second positioning piece 15, and two ends of the spiral spring are respectively connected with the threaded section of the second positioning piece 15 and the threaded section of the positioning rod 10; a gap is arranged between the front end face of the first positioning piece 8 and the cover plate 7 and used for providing a space for the movement of the cover plate 7, and a plurality of channels communicated with the rubber air bag 1 and the gap between the first positioning piece 8 and the cover plate 7 are arranged in the first positioning piece 8. The air in the vibrator and the air in the rubber air bag 1 are communicated, so that the internal pressure of the vibrator is balanced with the pressure in the rubber air bag, the electrodynamic type sound source is not influenced by the change of the water depth pressure and is in a normal working state, and the arrangement of the positioning guide mechanism ensures that the coil 4 has a good positioning effect when reciprocating in a narrow air gap of the magnetic circuit 2, and prevents the coil from being scraped with the magnetic circuit to influence the service life of the electrodynamic type sound source.
The vulcanized rubber film 9 completely covers the outer surface of the cover plate 7 or the vulcanized rubber film 9 covers the edge of the cover plate 7, so long as the watertight effect of the power supply is realized.
The vulcanized rubber membrane 9 is reserved at the edge of the cover plate 7 with allowance moving along with the cover plate 7, so that the vulcanized rubber membrane 9 is prevented from being damaged when the cover plate 7 moves, and the integral seal of a sound source is prevented from being damaged.
An aluminum filler 14 is bonded to a channel wall inside the first positioning member 8, and the filler 14 is provided to evacuate air from the driving vibrator, so that the electrodynamic sound source can operate in a deeper water area.
The second positioning piece 15 is of a hollow cylindrical structure, a stepped hole used for installing and positioning the linear bearing 13 is formed in the second positioning piece 15, a positioning step installed and positioned with the first positioning piece 8 is formed in the outer surface of the second positioning piece 15, a thread section matched with the spiral spring 11 is processed on the outer surface of the positioning step, the linear bearing 13 is fixedly bonded in the stepped hole of the second positioning piece 15, the positioning rod 10 in the linear bearing is positioned, therefore, the cover plate 7 and the coil are positioned and guided in motion, and the safety and reliability of a sound source are improved.
The second positioning element 15 is fixed to the first positioning element 8 by means of adhesive or screw connection. The positioning rod 10 and the cover plate 7 may be fixed by bonding or screwing, or the positioning rod 10 and the cover plate 7 may be integrally formed.
The working principle of the electrodynamic sound source is as follows: during the use, rubber airbag 1 is full of gas, and 4 circular telegrams of coil, and coil 4 drive apron 7 and remove under the effect of magnetic circuit 2 and permanent magnet 3, thereby apron 7 promotes water transmission sound wave, makes apron 7 reset under coil spring 11's effect, under the effect of periodic current, realizes the transmission sound wave that lasts of electrodynamic type sound source.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an ultralow frequency electrodynamic type sound source of whole watertight rubber mould cladding which characterized in that: the rubber airbag device comprises a rubber airbag (1), a driving vibrator, a vulcanized rubber film (9) and a positioning and guiding mechanism, wherein the vulcanized rubber film (9) is arranged at an opening at the front end of the rubber airbag (1), the rubber airbag (1) and the vulcanized rubber film (9) are pressed and fixed through a pressing ring (6), the driving vibrator is arranged in a space enclosed by the rubber airbag (1) and the vulcanized rubber film (9), and comprises a magnetic circuit (2), a permanent magnet (3), a coil (4), a cover plate (7) and a spiral spring (11); the inner wall of the rubber air bag (1) is adhered and fixed on the magnetic circuit (2), and the coil (4) is fixed on the edge of the cover plate (7) and is positioned in an air gap of the magnetic circuit (2); the permanent magnet (3) is embedded in a groove in the magnetic circuit (2), and the permanent magnet (3) and the magnetic circuit (2) are arranged coaxially;
the positioning guide mechanism comprises a first positioning piece (8), a positioning rod (10), a linear bearing (13) and a second positioning piece (15), the first positioning piece (8) is arranged at the center of the magnetic circuit (2), the first positioning piece (8) is fixedly adhered with the magnetic circuit (2), the second positioning part (15) is arranged inside the first positioning part (8), and is adhered and fixed with the first positioning piece (8), the linear bearing (13) is fixed in the second positioning piece (15), the rear end of the positioning rod (10) is inserted into the linear bearing (13), the front end of the positioning rod (10) is fixedly connected with the cover plate (7), a threaded section is arranged at the front section of the positioning rod (10), a threaded section is also arranged at the rear section of the second positioning piece (15), the spiral spring (11) is sleeved on the second positioning piece (15), and both ends are respectively connected with the threaded section of the second positioning piece (15) and the threaded section of the positioning rod (10); a gap is arranged between the front end face of the first positioning piece (8) and the cover plate (7), and a plurality of channels communicated with the rubber air bag (1) and the gap between the first positioning piece (8) and the cover plate (7) are arranged in the first positioning piece (8).
2. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the ultralow frequency electrodynamic type sound source further comprises a metal ring (5), the metal ring (5) is fixed on the front end face of the magnetic circuit (2), and the pressing ring (6) is fixedly connected with the metal ring (5) through a plurality of screws (12).
3. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the vulcanized rubber film (9) completely covers the outer surface of the cover plate (7).
4. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the vulcanized rubber film (9) covers the edge of the cover plate (7).
5. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 3 or 4, wherein: and the vulcanized rubber film (9) is reserved with allowance moving along with the cover plate (7) at the edge of the cover plate (7).
6. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: a filler (14) is bonded to the inner channel wall of the first positioning element (8).
7. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the second positioning piece (15) is of a hollow cylindrical structure, a stepped hole used for installing and positioning the linear bearing (13) is formed in the second positioning piece (15), a positioning step installed and positioned with the first positioning piece (8) is arranged on the outer surface of the second positioning piece (15), and a thread section matched with the spiral spring (11) is machined on the outer surface of the positioning step.
8. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the second positioning piece (15) and the first positioning piece (8) are fixed in a bonding mode or in a threaded connection mode.
9. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the positioning rod (10) and the cover plate (7) are fixed in an adhesion mode or a threaded connection mode.
10. The ultra-low frequency electrodynamic sound source covered with an integral watertight rubber mold according to claim 1, wherein: the positioning rod (10) and the cover plate (7) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921224.1A CN112040380B (en) | 2020-09-04 | 2020-09-04 | Ultra-low frequency electric sound source coated by integral watertight rubber mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921224.1A CN112040380B (en) | 2020-09-04 | 2020-09-04 | Ultra-low frequency electric sound source coated by integral watertight rubber mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112040380A true CN112040380A (en) | 2020-12-04 |
| CN112040380B CN112040380B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010921224.1A Active CN112040380B (en) | 2020-09-04 | 2020-09-04 | Ultra-low frequency electric sound source coated by integral watertight rubber mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216262A (en) * | 2020-10-14 | 2021-01-12 | 西安交通大学 | Superstructure underwater acoustic emission transducer |
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| US4466083A (en) * | 1983-05-31 | 1984-08-14 | The United States Of America As Represented By The Secretary Of The Navy | Low frequency, broadband, underwater sound transducer |
| CN1878432A (en) * | 2005-05-27 | 2006-12-13 | 先锋株式会社 | Speaker apparatus |
| CN204828129U (en) * | 2015-07-30 | 2015-12-02 | 中国舰船研究设计中心 | Integrated sharp driver of moving -iron electricity liquid |
| CN207638885U (en) * | 2017-12-19 | 2018-07-20 | 中国船舶重工集团公司第七二六研究所 | Underwater acoustic transducer with pressure sensor |
| CN109211340A (en) * | 2018-08-30 | 2019-01-15 | 中国船舶重工集团公司第七〇五研究所 | A kind of large scale deep water transducer basic matrix manufactures and designs structure and method |
| CN110021285A (en) * | 2019-04-16 | 2019-07-16 | 哈尔滨工程大学 | Double-piston electromagnetic type ultra-low frequency underwater acoustic transducer, installation method and energy-changing method |
| CN110420824A (en) * | 2019-07-23 | 2019-11-08 | 长沙金信诺防务技术有限公司 | A kind of underwater sound source |
| CN210072051U (en) * | 2019-03-13 | 2020-02-14 | 上海西邦电气有限公司 | Automatic positioning type electric device |
| CN111083611A (en) * | 2019-12-25 | 2020-04-28 | 中国船舶重工集团公司七五0试验场 | Small-size moving-coil type ultralow-frequency underwater acoustic transducer |
| CN212367525U (en) * | 2020-09-04 | 2021-01-15 | 哈尔滨浩声科技有限公司 | Ultralow frequency electrodynamic sound source coated by integral watertight rubber mold |
-
2020
- 2020-09-04 CN CN202010921224.1A patent/CN112040380B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466083A (en) * | 1983-05-31 | 1984-08-14 | The United States Of America As Represented By The Secretary Of The Navy | Low frequency, broadband, underwater sound transducer |
| CN1878432A (en) * | 2005-05-27 | 2006-12-13 | 先锋株式会社 | Speaker apparatus |
| CN204828129U (en) * | 2015-07-30 | 2015-12-02 | 中国舰船研究设计中心 | Integrated sharp driver of moving -iron electricity liquid |
| CN207638885U (en) * | 2017-12-19 | 2018-07-20 | 中国船舶重工集团公司第七二六研究所 | Underwater acoustic transducer with pressure sensor |
| CN109211340A (en) * | 2018-08-30 | 2019-01-15 | 中国船舶重工集团公司第七〇五研究所 | A kind of large scale deep water transducer basic matrix manufactures and designs structure and method |
| CN210072051U (en) * | 2019-03-13 | 2020-02-14 | 上海西邦电气有限公司 | Automatic positioning type electric device |
| CN110021285A (en) * | 2019-04-16 | 2019-07-16 | 哈尔滨工程大学 | Double-piston electromagnetic type ultra-low frequency underwater acoustic transducer, installation method and energy-changing method |
| CN110420824A (en) * | 2019-07-23 | 2019-11-08 | 长沙金信诺防务技术有限公司 | A kind of underwater sound source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216262A (en) * | 2020-10-14 | 2021-01-12 | 西安交通大学 | Superstructure underwater acoustic emission transducer |
| CN112216262B (en) * | 2020-10-14 | 2024-05-24 | 西安交通大学 | Super-structure underwater sound emission transducer |
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| Publication number | Publication date |
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| CN112040380B (en) | 2024-07-23 |
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