JPS5745799A - Piezo-electric type speaker - Google Patents
Piezo-electric type speakerInfo
- Publication number
- JPS5745799A JPS5745799A JP12142280A JP12142280A JPS5745799A JP S5745799 A JPS5745799 A JP S5745799A JP 12142280 A JP12142280 A JP 12142280A JP 12142280 A JP12142280 A JP 12142280A JP S5745799 A JPS5745799 A JP S5745799A
- Authority
- JP
- Japan
- Prior art keywords
- center
- piezo
- bimorph
- diaphragm
- electric
- 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.)
- Granted
Links
Abstract
PURPOSE:To simplify the structure and reduce the size and weight by fixing a diaphragm at the center of a piezo-electric bimorph element in which plural slits are provided radially from the center and fixing the periphery of the element and diaphragm to respective frames and thereby using the element as a piezo-electric type speaker. CONSTITUTION:A diaphragm 4 provided with corrugation on the periphery is fixed in a hole 2 at the center of a piezo-electric bimorph element 1 provided with plural slits 3 radially from the center. The periphery of the diaphragm 4 and bimorph element 1 is fixed to platy frames 5 provided with a hole in the center and ring-like steps 5a, 5b are made on the hole side at the center of both sides of the frame 5. Terminals 7, 8 are fixed to the frames 5 and connected to a specified electrode of the bimorph element 1. The bimorph is divided into plural bimorph pieces and electric impedance of the bimorph element 1 is made low looked from the terminals 7, 8. Thus, efficiency of the piezo-electric type speaker is improved and the structure is made simple to allow mass production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12142280A JPS5745799A (en) | 1980-09-01 | 1980-09-01 | Piezo-electric type speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12142280A JPS5745799A (en) | 1980-09-01 | 1980-09-01 | Piezo-electric type speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5745799A true JPS5745799A (en) | 1982-03-15 |
| JPS6335160B2 JPS6335160B2 (en) | 1988-07-13 |
Family
ID=14810747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12142280A Granted JPS5745799A (en) | 1980-09-01 | 1980-09-01 | Piezo-electric type speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5745799A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101900U (en) * | 1983-12-15 | 1985-07-11 | 日本圧電気株式会社 | Electrical/acoustic transducer |
| WO2006059856A1 (en) * | 2004-12-03 | 2006-06-08 | Ibule Photonics Co., Ltd | Piezoelectric vibrator with multi acting vibrator |
| WO2007060768A1 (en) * | 2005-11-24 | 2007-05-31 | Murata Manufacturing Co., Ltd. | Electroacoustic transducer |
| WO2009097012A1 (en) * | 2008-01-31 | 2009-08-06 | Sony Ericsson Mobile Communications Ab | Low-profile piezoelectric speaker assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03180964A (en) * | 1989-12-08 | 1991-08-06 | Nitsuko Corp | Kitchen display system |
-
1980
- 1980-09-01 JP JP12142280A patent/JPS5745799A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60101900U (en) * | 1983-12-15 | 1985-07-11 | 日本圧電気株式会社 | Electrical/acoustic transducer |
| WO2006059856A1 (en) * | 2004-12-03 | 2006-06-08 | Ibule Photonics Co., Ltd | Piezoelectric vibrator with multi acting vibrator |
| WO2007060768A1 (en) * | 2005-11-24 | 2007-05-31 | Murata Manufacturing Co., Ltd. | Electroacoustic transducer |
| US7586241B2 (en) | 2005-11-24 | 2009-09-08 | Murata Manufacturing Co., Ltd. | Electroacoustic transducer |
| WO2009097012A1 (en) * | 2008-01-31 | 2009-08-06 | Sony Ericsson Mobile Communications Ab | Low-profile piezoelectric speaker assembly |
| US8094843B2 (en) | 2008-01-31 | 2012-01-10 | Sony Ericsson Mobile Communications Ab | Low-profile piezoelectric speaker assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335160B2 (en) | 1988-07-13 |
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