JPS57113698A - Piezoelectric speaker - Google Patents
Piezoelectric speakerInfo
- Publication number
- JPS57113698A JPS57113698A JP94281A JP94281A JPS57113698A JP S57113698 A JPS57113698 A JP S57113698A JP 94281 A JP94281 A JP 94281A JP 94281 A JP94281 A JP 94281A JP S57113698 A JPS57113698 A JP S57113698A
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric
- bimorph
- piezoelectric speaker
- band
- piezoelectric bimorph
- 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
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000010355 oscillation Effects 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
PURPOSE:To lower the resonance frequency, by using piezoelectric bimorph formed as a series of band as a sound source, and thus the mechanical impedance of diaphragm system of a piezoelectric speaker is decreased. CONSTITUTION:A piezoelectric bimorph 11 is used as a drive source of a piezoelectric speaker, and the piezoelectric bimorph is formed to a series of band. The bimorph 11 uses the displacement between the circumference and the center, and the shape of connection is as shown in figure. By using the piezoelectric bimorph 11 like this as the sound generating source, the mechanical impedance of oscillation system of the piezoelectric speaker can be lowered, the resonance frequency can be decreased and the playback frequency band can be spread greatly to low tone side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP94281A JPS57113698A (en) | 1981-01-06 | 1981-01-06 | Piezoelectric speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP94281A JPS57113698A (en) | 1981-01-06 | 1981-01-06 | Piezoelectric speaker |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57113698A true JPS57113698A (en) | 1982-07-15 |
Family
ID=11487720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP94281A Pending JPS57113698A (en) | 1981-01-06 | 1981-01-06 | Piezoelectric speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57113698A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233953A (en) * | 1975-09-11 | 1977-03-15 | Shiyouki Chiyou | Method of producing molded product mainly containing polyethylene terephthalate |
-
1981
- 1981-01-06 JP JP94281A patent/JPS57113698A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5233953A (en) * | 1975-09-11 | 1977-03-15 | Shiyouki Chiyou | Method of producing molded product mainly containing polyethylene terephthalate |
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