CN101827296A - Piezoelectric ceramic loudspeaker - Google Patents
Piezoelectric ceramic loudspeaker Download PDFInfo
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- CN101827296A CN101827296A CN201010162508A CN201010162508A CN101827296A CN 101827296 A CN101827296 A CN 101827296A CN 201010162508 A CN201010162508 A CN 201010162508A CN 201010162508 A CN201010162508 A CN 201010162508A CN 101827296 A CN101827296 A CN 101827296A
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- piezoelectric ceramic
- circuit board
- loudspeaker
- plate
- flexible circuit
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Abstract
The invention discloses a piezoelectric ceramic loudspeaker, which comprises a front cover plate. A vibrating diaphragm, a metal thin film, a piezoelectric ceramic plate and a flexible circuit board are sequentially arranged in the front cover plate; the piezoelectric ceramic plate is matched with a sound penetrating cavity; a rear cover plate is matched with the front cover plate to press the vibrating diaphragm, the metal thin film and the flexible circuit board between the two cover plates; one side of the flexible circuit board is pressed on one side of the piezoelectric ceramic plate and connected with the side of the piezoelectric ceramic plate; the rear cover plate on one side, where the flexible circuit board is pressed, is provided with an opening; and the flexible circuit board at the opening is provided with a wiring point. The piezoelectric ceramic loudspeaker has the advantages that: the structure is simple, compact and beautiful; the piezoelectric ceramic plate is not directly contacted with the exterior during the installation and use; the piezoelectric ceramic plate is protected well and difficult to collide; the service life of the piezoelectric ceramic plate and the service life of the piezoelectric ceramic loudspeaker are prolonged; and convenient and stable crimp connection between the piezoelectric ceramic plate and the metal thin film and good sound conversion effect are ensured; therefore, the product quality of the piezoelectric ceramic loudspeaker is improved greatly.
Description
Technical field
The present invention relates to a kind of loud speaker, relate in particular to a kind of piezoelectric ceramic loudspeaker.
Background technology
Piezoelectric ceramic loudspeaker is a kind of electro-acoustic transducer device of realizing electricity-mechanics-acoustics conversion by the inverse piezoelectric effect of piezoelectric ceramic piece, is widely used in the portable set terminal.When piezoelectric speaker had the audio signal input, the vibration component of piezoelectric speaker will produce corresponding stretching, extension or contractile motion, thereby has promoted air, gives off sound.Existing piezoelectric ceramic loudspeaker mainly comprises: piezoelectric ceramic piece, vibrating diaphragm and metallic film, adopt outstanding limit formula structure.Install and use in piezoelectric ceramic piece directly and the external world contact, collide with easily, cause the piezoelectric ceramic piece breakage, be connected by means of spot welds between piezoelectric ceramic piece and the metallic film, occur the not firm phenomenon in welding position easily, the product quality of piezoelectric ceramic loudspeaker is affected.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of compact conformation, can fine protection piezoelectric ceramic piece piezoelectric ceramic loudspeaker.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: piezoelectric ceramic loudspeaker, comprise: front shroud, offering saturating sound cavity on the front shroud, in front shroud, be disposed with vibrating diaphragm, metallic film, the piezoelectric ceramic piece that cooperatively interacts with saturating sound cavity, flexible electric circuit board, back shroud and front shroud cooperatively interact vibrating diaphragm, metallic film and flexible electric circuit board are pressed between the two, flexible electric circuit board while be pressed in piezoelectric ceramic piece on interconnect with it, more than all be to connect between each part by glue, be pressed with flexible electric circuit board back shroud on one side and be provided with opening, be provided with wiring point at the flexible electric circuit board of opening part.
In order to solve the problems of the technologies described above better, the further technical scheme that the present invention adopts is: evenly be provided with some penetrable sound holes that cooperatively interact with piezoelectric ceramic piece on described back shroud.
Advantage of the present invention is: the piezoelectric ceramic loudspeaker of said structure; simple and compact for structure, attractive in appearance; install and use in piezoelectric ceramic piece directly and the external world do not contact; can protect well piezoelectric ceramic piece, be not easy to collide with, prolong the useful life of piezoelectric ceramic piece and piezoelectric ceramic loudspeaker; crimping between piezoelectric ceramic piece and the metallic film; easy to connect, stable, the sound conversion effect is good, and the product quality of piezoelectric ceramic loudspeaker is greatly improved.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of piezoelectric ceramic loudspeaker of the present invention.
Fig. 2 is the Facad structure schematic diagram of piezoelectric ceramic loudspeaker of the present invention.
Fig. 3 is the reverse side structural representation of piezoelectric ceramic loudspeaker of the present invention.
Among the figure: 1, front shroud, 2, saturating sound cavity, 3, vibrating diaphragm, 4, metallic film, 5, piezoelectric ceramic piece, 6, flexible electric circuit board, 7, back shroud, 8, opening, 9, wiring point, 10, penetrable sound hole.
Embodiment
Describe particular content of the present invention in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, shown in Figure 3, piezoelectric ceramic loudspeaker, comprise: front shroud 1, offering saturating sound cavity 2 on the front shroud 1, in front shroud 1, be disposed with vibrating diaphragm 3, metallic film 4, the piezoelectric ceramic piece 5 that cooperatively interacts with saturating sound cavity 2, flexible electric circuit board 6, back shroud 7 cooperatively interacts vibrating diaphragm 3 with front shroud 1, metallic film 4 and flexible electric circuit board 6 are pressed between the two, flexible electric circuit board 6 while be pressed in piezoelectric ceramic piece 5 on interconnect with it, more than all be to connect between each part by glue, be pressed with flexible electric circuit board 6 back shroud 7 on one side and be provided with opening 8, the flexible electric circuit board 6 at opening 8 places is provided with wiring point 9.In the present embodiment, on described back shroud 7, evenly be provided with some penetrable sound holes 10 that cooperatively interact with piezoelectric ceramic piece 5.
Vibrating diaphragm 3, metallic film 4 and piezoelectric ceramic piece 5 are formed the vibration component of piezoelectric ceramic loudspeaker, one side of flexible electric circuit board 6 is connected with one side of piezoelectric ceramic piece 5, form the piezo-electric acoustic generator spare of piezoelectric ceramic loudspeaker, flexible electric circuit board 6 is by wiring point 9 incoming audio signals on it, inverse piezoelectric effect principle according to piezoelectric ceramic piece 5, the vibration component of piezoelectric ceramic loudspeaker produces corresponding displacement, thereby promotes air, radiation sound.
The piezoelectric ceramic loudspeaker of said structure; simple and compact for structure, attractive in appearance; install and use in piezoelectric ceramic piece 5 directly and the external world do not contact; can protect well piezoelectric ceramic piece 5, be not easy to collide with, prolong the useful life of piezoelectric ceramic piece 5 and piezoelectric ceramic loudspeaker; crimping between piezoelectric ceramic piece 5 and the metallic film 4; easy to connect, stable, the sound conversion effect is good, and the product quality of piezoelectric ceramic loudspeaker is greatly improved.
Claims (2)
1. piezoelectric ceramic loudspeaker, it is characterized in that: comprising: front shroud (1), on front shroud (), offer saturating sound cavity (2), in front shroud (1), be disposed with vibrating diaphragm (3), metallic film (4), the piezoelectric ceramic piece (5) that cooperatively interacts with saturating sound cavity (2), flexible electric circuit board (6), back shroud (7) cooperatively interacts vibrating diaphragm (3) with front shroud (1), metallic film (4) and flexible electric circuit board (6) are pressed between the two, flexible electric circuit board (6) while be pressed in piezoelectric ceramic piece (5) on interconnect with it, more than all be to connect between each part by glue, be pressed with flexible electric circuit board (6) back shroud (7) on one side and be provided with opening (8), the flexible electric circuit board of locating at opening (8) (6) is provided with wiring point (9).
2. according to the described piezoelectric ceramic loudspeaker of claim 1, it is characterized in that: on described back shroud (7), evenly be provided with some penetrable sound holes (10) that cooperatively interact with piezoelectric ceramic piece (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010162508A CN101827296A (en) | 2010-05-05 | 2010-05-05 | Piezoelectric ceramic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010162508A CN101827296A (en) | 2010-05-05 | 2010-05-05 | Piezoelectric ceramic loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101827296A true CN101827296A (en) | 2010-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010162508A Pending CN101827296A (en) | 2010-05-05 | 2010-05-05 | Piezoelectric ceramic loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101827296A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036153A (en) * | 2011-01-18 | 2011-04-27 | 张家港市玉同电子科技有限公司 | Double-film type piezoelectric ceramic loudspeaker |
| CN102075836A (en) * | 2011-01-18 | 2011-05-25 | 张家港市玉同电子科技有限公司 | Single-diaphragm piezoelectric ceramic loudspeaker |
| CN102291657A (en) * | 2011-05-31 | 2011-12-21 | 张家港市玉同电子科技有限公司 | bicrystal piezoelectric ceramic loudspeaker |
| CN110581911A (en) * | 2019-08-26 | 2019-12-17 | Oppo广东移动通信有限公司 | Electronic device and voice control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332595A (en) * | 2000-07-10 | 2002-01-23 | 株式会社村田制作所 | Piezoelectric electroacoustic transducer |
| EP1357768A2 (en) * | 2002-04-26 | 2003-10-29 | Murata Manufacturing Co., Ltd. | Piezoelectric electro-acoustic transducer |
| CN2660830Y (en) * | 2003-12-17 | 2004-12-01 | 中国科学院声学研究所 | Underwater speaker |
| CN101505445A (en) * | 2009-03-06 | 2009-08-12 | 瑞声声学科技(深圳)有限公司 | Piezoelectric ceramic loudspeaker and manufacturing method thereof |
| CN201319667Y (en) * | 2008-12-30 | 2009-09-30 | 西安康弘新材料科技有限公司 | Multilayer piezoelectric loudspeaker |
| CN201674661U (en) * | 2010-05-05 | 2010-12-15 | 张家港市玉同电子科技有限公司 | Piezoelectric ceramic loudspeaker |
-
2010
- 2010-05-05 CN CN201010162508A patent/CN101827296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332595A (en) * | 2000-07-10 | 2002-01-23 | 株式会社村田制作所 | Piezoelectric electroacoustic transducer |
| EP1357768A2 (en) * | 2002-04-26 | 2003-10-29 | Murata Manufacturing Co., Ltd. | Piezoelectric electro-acoustic transducer |
| CN2660830Y (en) * | 2003-12-17 | 2004-12-01 | 中国科学院声学研究所 | Underwater speaker |
| CN201319667Y (en) * | 2008-12-30 | 2009-09-30 | 西安康弘新材料科技有限公司 | Multilayer piezoelectric loudspeaker |
| CN101505445A (en) * | 2009-03-06 | 2009-08-12 | 瑞声声学科技(深圳)有限公司 | Piezoelectric ceramic loudspeaker and manufacturing method thereof |
| CN201674661U (en) * | 2010-05-05 | 2010-12-15 | 张家港市玉同电子科技有限公司 | Piezoelectric ceramic loudspeaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036153A (en) * | 2011-01-18 | 2011-04-27 | 张家港市玉同电子科技有限公司 | Double-film type piezoelectric ceramic loudspeaker |
| CN102075836A (en) * | 2011-01-18 | 2011-05-25 | 张家港市玉同电子科技有限公司 | Single-diaphragm piezoelectric ceramic loudspeaker |
| CN102075836B (en) * | 2011-01-18 | 2012-11-21 | 张家港市玉同电子科技有限公司 | Single-diaphragm piezoelectric ceramic loudspeaker |
| CN102036153B (en) * | 2011-01-18 | 2012-12-12 | 张家港市玉同电子科技有限公司 | Double-film type piezoelectric ceramic loudspeaker |
| CN102291657A (en) * | 2011-05-31 | 2011-12-21 | 张家港市玉同电子科技有限公司 | bicrystal piezoelectric ceramic loudspeaker |
| CN102291657B (en) * | 2011-05-31 | 2014-04-16 | 张家港市玉同电子科技有限公司 | Bicrystal piezoelectric ceramic loudspeaker |
| CN110581911A (en) * | 2019-08-26 | 2019-12-17 | Oppo广东移动通信有限公司 | Electronic device and voice control method |
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Application publication date: 20100908 |