JPS55141897A - Electroacoustic converter and its manufacture - Google Patents
Electroacoustic converter and its manufactureInfo
- Publication number
- JPS55141897A JPS55141897A JP4951579A JP4951579A JPS55141897A JP S55141897 A JPS55141897 A JP S55141897A JP 4951579 A JP4951579 A JP 4951579A JP 4951579 A JP4951579 A JP 4951579A JP S55141897 A JPS55141897 A JP S55141897A
- Authority
- JP
- Japan
- Prior art keywords
- film
- thin plate
- diaphragm
- curved
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000010408 film Substances 0.000 abstract 12
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 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
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
PURPOSE:To establish the electroacoustic converter having simple construction with less number of components, with the constitution damping the resonance of disphragm film with the thin plate and oscillation film. CONSTITUTION:Holes 12 are formed on the curved thin plate 11, and the vibration film 13 forming the electrode film on the both sides of macromolecular piezoelectric film such as polyvinylidenefluoride film is adhered only at the circumference of the vibrating film 13, at the back of the thin plate 11. Further, the diaphragm film 13 is curved along the curvature of the thin film 11, the gap at the center is taken as specified value and contained in the case 4, and the resonance of the diaphragm film 13 is damped with the acoustic resistance of air gap between the thin plate 11 and the diaphragm film 13. At the process of this maunfacture, at the back of the thin plate 11, only the circumference of the diaphragm film 13 given a tension toward the arrow is bonded. After that, the thin plate 11 is curved to form specified gap between the thin plate 11 and the diaphragm film 13 and to form the curved conversion unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4951579A JPS55141897A (en) | 1979-04-20 | 1979-04-20 | Electroacoustic converter and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4951579A JPS55141897A (en) | 1979-04-20 | 1979-04-20 | Electroacoustic converter and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55141897A true JPS55141897A (en) | 1980-11-06 |
Family
ID=12833262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4951579A Pending JPS55141897A (en) | 1979-04-20 | 1979-04-20 | Electroacoustic converter and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55141897A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052521A1 (en) * | 2009-10-28 | 2011-05-05 | Ｊ＆Ｋカーエレクトロニクス株式会社 | Speaker device |
| CN108430016A (en) * | 2018-04-06 | 2018-08-21 | 西北工业大学 | A kind of closing cavate PVDF thin film loud speaker |
-
1979
- 1979-04-20 JP JP4951579A patent/JPS55141897A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011052521A1 (en) * | 2009-10-28 | 2011-05-05 | Ｊ＆Ｋカーエレクトロニクス株式会社 | Speaker device |
| JP2011097297A (en) * | 2009-10-28 | 2011-05-12 | J&K Car Electronics Corp | Speaker device |
| CN108430016A (en) * | 2018-04-06 | 2018-08-21 | 西北工业大学 | A kind of closing cavate PVDF thin film loud speaker |
| CN108430016B (en) * | 2018-04-06 | 2020-04-03 | 西北工业大学 | Closed cavity type PVDF film loudspeaker |
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