CN2083373U - Loud-speaker for underwater or in the high-humidity air - Google Patents
Loud-speaker for underwater or in the high-humidity air Download PDFInfo
- Publication number
- CN2083373U CN2083373U CN 90207368 CN90207368U CN2083373U CN 2083373 U CN2083373 U CN 2083373U CN 90207368 CN90207368 CN 90207368 CN 90207368 U CN90207368 U CN 90207368U CN 2083373 U CN2083373 U CN 2083373U
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- CN
- China
- Prior art keywords
- underwater
- humidity air
- loud
- speaker
- sounding component
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- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model relates to a loud-speaker for underwater or in the high-humidity air, relating to a sound production device in the liquid medium or the high-humidity air and within the audio range. A bending vibration type sound production element composed of an elastic metal sheet whose one surface is adhered with a piezoelectric ceramic plate is adopted to be matched with a double-card radio-receiver to be used, and the effect of simultaneously playing the stereo sound music underwater and overwater can be obtained. The loud-speaker for underwater or in the high-humidity air is suitable for the training of the water ballet in the swimming pool or the underwater talking, and is also suitable for playing the music in the sauna with high-humidity air.
Description
The utility model relates to a kind of audible device in liquid medium or damp atmosphere sound intermediate frequency scope.
Existing technology is included in and utilizes the whole bag of tricks excitation acoustic energy in liquid or the water, they are the acoustical signal that produces pulse or narrow-band mostly, carry out underwater communication or geophysical reconnaissance, the device of sounding in audiorange is also arranged in liquid medium, and it is the pallesthesiometer that utilizes electromagnetic method to handle through watertight.Also have and immerse the PZT (piezoelectric transducer) that is used as sonar array in the deep water, it becomes being fixed in the cylindrical shell and constituting (US, 4100527) radially by a pile piezoelectric element.
More than all pallesthesiometers, adopt distinct methods to make, be suitable for different instructions for uses and different occasions.
The purpose of this utility model is: a kind of suitable effect swimming pool is provided, especially synchronized swimming training, conversation under water, with the loud speaker that uses as playing back music in the sauna etc. in damp atmosphere, its sounding component mainly is made of the elastic sheet metal that one side is pasted with piezoelectric ceramic piece.
The utility model is achieved in that it comprises: a seal casinghousing; one transmission cable; with the sounding component that constitutes by the elastic sheet metal that simultaneously is pasted with piezoelectric ceramic piece; the another side of sheet metal has fish tail and waterproof layer; an elastic support ring; a packing ring and a pressure ring, pressure ring is fixed on sounding component and elastic support ring on the housing by packing ring.
When the metallic membrane that is stained with piezoelectric ceramic piece, when under electric excitation, flexural vibrations taking place, energy is passed in the surrounding medium, and produce sound wave.
The utility model has the advantages that: 1, electro-acoustic conversion efficiency height, because flexural vibrations type piezoelectric ceramic metal sheet is thinner, do not need too high driving voltage, can cause that sounding component produces flexural vibrations and excite sound waves in the medium around.2, frequency domain is widened: owing to adopted the soft supporting construction of resiliency supported ring type between vibration sheet metal and the housing, increased the compliance of structure, and the quality factor when reducing structural vibration, thus widened frequency range, obtain good tonequality.3, volume little, light and handy, attractive in appearance, be easy to carry.
Detailed structure of the present utility model is illustrated by the embodiment that provides:
Fig. 1 is the utility model embodiment front view.
Fig. 2 is the utility model embodiment cutaway view.
Fig. 3 is the utility model sucked type structural representation.
Among Fig. 1: 1 is transmission cable, and 2 is loudspeaker housing.
Among Fig. 2,1 is transmission cable, and 2 is loudspeaker housing, and 3 are elasticity garden ring, and 4 is fish tail and waterproof layer, the 5th, and metallic membrane, 6, piezoelectric ceramic piece, 7, cover sheet, 8, metal washer, 9, threaded pressure ring, the 10th, cavity, 11, matching transformer.
The sounding component of loud speaker is to be made of the elastic sheet metal 5 that is pasted with piezoelectric ceramic thin sheet 6.It can be one or more, for a plurality of sounding components, each other can be in parallel, also can connect, the 3rd, elasticity garden ring, use the elasticity soft material, make as rubber, soft plastic etc., it is used for the edge of support metal vibrating diaphragm, can increase the structure compliance with it, quality factor when reducing structural vibration to widen frequency range, obtains good tonequality.What adopt in the present embodiment is rubber ring, the 4th, and fish tail and waterproof layer can use the rubber membrane of 0.5mm, sticks on another surface of metallic membrane with silica gel.The 7th, cover sheet; the 8th, metal washer, the 9th, screwed pressure ring is under the effect of pressure ring 9; force together 8,4,3,5; the diameter of metallic membrane 5 is than metal washer 8 rubber films 4, and the diameter of elasticity garden ring 3 is little, so under the effect of pressure ring 9; the edge is embedded between 4,3 fully; the generation deformation that is squeezed is encircled in the elasticity garden, simultaneously, plays the watertight effect.10 is cavitys, the installation matching transformer is used, the 11st, matching transformer, power amplifier (promptly the encouraging the signal of telecommunication) output (impedance is 4～8 Ω) of its Low ESR one end and common radio-cassette player or other sound systems links, the piezoelectricity pottery money sheet (high impedance generally has 3000 Ω) of high impedance one end and sounding component links, matching transformer can with the set of speakers integrator, also can be in the same place with the plug combination of power amplification circuit output separately.
Fig. 2 is the utility model sucked type structural representation: 12 are the watertight socket, and 2 is that plastic casing 3 is soft border supporting bead, and 4 is the waterproofing protection film, and 5 for posting the metal vibrating reed of piezoelectric ceramic piece 6, and 7 for damaging by pressure, also is cover sheet, and 8 is metal washer,
Watertight socket 12 has two to annotate together contact pin with plastic casing, one rubber blanket is arranged at plug bottom, when plug during from last insertion threaded together, and plug extruding rubber blanket, realize waterproof sealing, the contact pin of watertight socket links to each other with the electrode of piezoelectric ceramic piece 6 and supplies with sounding component with driving voltage.
The sucked type loud speaker can have only a sounding component, and single face sounding, another side are installed rubber or flexible plastics sucker, so that as required loud speaker is adsorbed on the pool wall.
Claims (4)
1, a kind of loud speaker that reaches under water in the damp atmosphere; it comprises: a seal casinghousing; one transmission cable and sounding component; it is characterized in that: said sounding component is made of the elastic sheet metal that one side is pasted with piezoelectric ceramic piece; the another side of sheet metal has fish tail and waterproof layer; one elastic support ring is arranged between sounding component and the housing, a packing ring and a pressure ring, pressure ring is fixed on sounding component and elastic support ring on the housing by packing ring.
2, it is characterized in that according to the said loud speaker of claim 1: a sucker is arranged on the said housing.
3, it is characterized in that according to the said loud speaker of claim 1: said sounding component can be one, also can be more than 2 or 2, can and connect also between them and can be connected in series.
4, it is characterized in that according to the said loud speaker of claim 1: said housing be metal or plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207368 CN2083373U (en) | 1990-06-25 | 1990-06-25 | Loud-speaker for underwater or in the high-humidity air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90207368 CN2083373U (en) | 1990-06-25 | 1990-06-25 | Loud-speaker for underwater or in the high-humidity air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2083373U true CN2083373U (en) | 1991-08-21 |
Family
ID=4887807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90207368 Withdrawn CN2083373U (en) | 1990-06-25 | 1990-06-25 | Loud-speaker for underwater or in the high-humidity air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2083373U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387363C (en) * | 2004-08-31 | 2008-05-14 | 中国科学院声学研究所 | Music vibration transmission piezoelectric transducer in water |
| CN102387453A (en) * | 2010-08-31 | 2012-03-21 | 财团法人工业技术研究院 | Flat speaker structure and manufacturing method thereof |
| US8331587B2 (en) | 2008-12-30 | 2012-12-11 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
| US8345896B2 (en) | 2008-12-30 | 2013-01-01 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic device |
| US8406450B2 (en) | 2009-08-28 | 2013-03-26 | Tsinghua University | Thermoacoustic device with heat dissipating structure |
| US8452031B2 (en) | 2008-04-28 | 2013-05-28 | Tsinghua University | Ultrasonic thermoacoustic device |
| US8457331B2 (en) | 2009-11-10 | 2013-06-04 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic device |
| US8494187B2 (en) | 2009-11-06 | 2013-07-23 | Tsinghua University | Carbon nanotube speaker |
| US8537640B2 (en) | 2009-09-11 | 2013-09-17 | Tsinghua University | Active sonar system |
| US8615096B2 (en) | 2009-08-07 | 2013-12-24 | Tsinghua University | Thermoacoustic device |
-
1990
- 1990-06-25 CN CN 90207368 patent/CN2083373U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387363C (en) * | 2004-08-31 | 2008-05-14 | 中国科学院声学研究所 | Music vibration transmission piezoelectric transducer in water |
| US8452031B2 (en) | 2008-04-28 | 2013-05-28 | Tsinghua University | Ultrasonic thermoacoustic device |
| US8331587B2 (en) | 2008-12-30 | 2012-12-11 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
| US8345896B2 (en) | 2008-12-30 | 2013-01-01 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic device |
| US8379885B2 (en) | 2008-12-30 | 2013-02-19 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
| US8462965B2 (en) | 2008-12-30 | 2013-06-11 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic module, thermoacoustic device, and method for making the same |
| US8615096B2 (en) | 2009-08-07 | 2013-12-24 | Tsinghua University | Thermoacoustic device |
| US8406450B2 (en) | 2009-08-28 | 2013-03-26 | Tsinghua University | Thermoacoustic device with heat dissipating structure |
| US8537640B2 (en) | 2009-09-11 | 2013-09-17 | Tsinghua University | Active sonar system |
| US8494187B2 (en) | 2009-11-06 | 2013-07-23 | Tsinghua University | Carbon nanotube speaker |
| US8457331B2 (en) | 2009-11-10 | 2013-06-04 | Beijing Funate Innovation Technology Co., Ltd. | Thermoacoustic device |
| CN102387453A (en) * | 2010-08-31 | 2012-03-21 | 财团法人工业技术研究院 | Flat speaker structure and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |