CN201986142U - Double-film piezoelectric ceramic loudspeaker - Google Patents
Double-film piezoelectric ceramic loudspeaker Download PDFInfo
- Publication number
- CN201986142U CN201986142U CN2011200145106U CN201120014510U CN201986142U CN 201986142 U CN201986142 U CN 201986142U CN 2011200145106 U CN2011200145106 U CN 2011200145106U CN 201120014510 U CN201120014510 U CN 201120014510U CN 201986142 U CN201986142 U CN 201986142U
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramic
- metallic film
- ceramic loudspeaker
- vibrating diaphragm
- protecgulum
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The utility model discloses a double-film piezoelectric ceramic loudspeaker, which avoids generating current crowding or static electricity, improves tone quality. The double-film piezoelectric ceramic loudspeaker comprises a front cover, wherein a metallic film and a monocrystal piezoelectric ceramic piece both form a vibration component, as well as organic vibrating membrane pieces respectively arranged on the two sides of the metallic film are arranged on the inner side of the front cover; a flexible printed circuit board compresses on and is electrically connected with the monocrystal piezoelectric ceramic piece; the metallic film, the monocrystal piezoelectric ceramic, the organic vibrating membranes arranged on the two sides of the metallic film, and the flexible printed circuit board form a piezoelectric acoustic generator of the piezoelectric ceramic loudspeaker; and a rear cover is fixedly arranged on the front cover, and the piezoelectric acoustic generator is fixedly mounted in a cavity between the rear cover and the front cover. The double-film piezoelectric ceramic loudspeaker adopting the above structure is applied to a portable equipment terminal for replaying voice and music.
Description
Technical field
The utility model relates to piezoelectric ceramic loudspeaker, relates in particular to the piezoelectric ceramic loudspeaker that is used in a kind of portable set terminal to voice and music playback.
Background technology
Piezoelectric ceramic loudspeaker commonly used at present, comprise protecgulum, the protecgulum inboard is provided with metallic film, metallic film is provided with the monocrystalline piezoelectric potsherd, metallic film and monocrystalline piezoelectric potsherd have constituted the vibration component of piezoelectric ceramic loudspeaker, flexible print wiring board is pressed on the monocrystalline piezoelectric potsherd and with the monocrystalline piezoelectric potsherd and is electrically connected, and metallic film, monocrystalline piezoelectric potsherd and flexible print wiring board have constituted a piezo-electric acoustic generator spare; Also be set with bonnet on protecgulum, piezo-electric acoustic generator spare is fixedly mounted in the cavity between bonnet and the protecgulum.
Piezoelectric ceramic loudspeaker is a kind of electro-acoustic transducer device of realizing electricity-mechanics-acoustics conversion by the inverse piezoelectric effect of monocrystalline piezoelectric potsherd, is applied in widely in the portable set terminal.When by the flexible print wiring board incoming audio signal, according to the inverse piezoelectric effect principle of monocrystalline piezoelectric potsherd, the vibration component of piezoelectric ceramic loudspeaker will produce corresponding stretching, extension or contractile motion, thereby has promoted air, gives off sound.
The major defect of the piezoelectric ceramic loudspeaker of said structure is: the installation because piezoelectric ceramic piece and metallic film are directly fitted, piezoelectric ceramic sector-meeting and metallic film are conducted and produce electric current and gather or produce static, thereby cause damaging other device---as mainboard in the mobile phone etc., cause unnecessary loss.In addition, the sound bass deficiency of sending after the piezoelectric ceramic piece vibration in the piezoelectric ceramic loudspeaker of said structure, tonequality blemish in an otherwise perfect thing.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of antistatic in use, anti-electric current to gather and can improve the dual-membrane type piezoelectric ceramic loudspeaker of tonequality.
For addressing the above problem, the technical solution adopted in the utility model is: described dual-membrane type piezoelectric ceramic loudspeaker, comprise protecgulum, be characterized in: be provided with organic vibrating diaphragm of insulation in described protecgulum inboard, be provided with metallic film at the upside of organic vibrating diaphragm; Also be provided with organic vibrating diaphragm of insulation at the metallic film upside, be provided with the monocrystalline piezoelectric potsherd at this organic vibrating diaphragm upside, metallic film, monocrystalline piezoelectric potsherd and the organic vibrating diaphragm that is arranged on the metallic film both sides have constituted the vibration component of described piezoelectric ceramic loudspeaker; Flexible print wiring board is pressed on the monocrystalline piezoelectric potsherd and with the monocrystalline piezoelectric potsherd and is electrically connected, and metallic film, monocrystalline piezoelectric potsherd, the organic vibrating diaphragm that is arranged on the metallic film both sides and flexible print wiring board have constituted the piezo-electric acoustic generator spare of described piezoelectric ceramic loudspeaker; Also be set with bonnet on protecgulum, described piezo-electric acoustic generator spare is fixedly mounted in the cavity between bonnet and the protecgulum.
The further technical scheme of the utility model is: described protecgulum is provided with the convenient positioning boss that piezo-electric acoustic generator spare is installed.
The utility model has the advantages that: owing to be provided with organic vibrating diaphragm of insulation in the both sides of metallic film, can avoid the conducting of piezoelectric ceramic piece and metallic film, electric current gathers or static thereby can avoid in the course of the work producing, and avoids damaging other device; In addition, after the both sides of metallic film are provided with organic vibrating diaphragm, can increase vibration damping, improve the vibration performance of vibration component, thereby reach the purpose that remedies the bass deficiency, improves tonequality; Moreover, piezo-electric acoustic generator spare is installed between the protecgulum and bonnet of piezoelectric ceramic loudspeaker, can protect piezoelectric ceramic piece and vibrating diaphragm effectively, improve the useful life of loud speaker.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of dual-membrane type piezoelectric ceramic loudspeaker described in the utility model;
Fig. 2 is the structural representation of the another kind of embodiment of dual-membrane type piezoelectric ceramic loudspeaker described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to shown in Figure 1, dual-membrane type piezoelectric ceramic loudspeaker described in the utility model, comprise protecgulum 101, the outer side edges of protecgulum 101 is provided with positioning boss 1011, be provided with organic vibrating diaphragm 102 of insulation in described protecgulum 101 inboards, be provided with metallic film 103 at the upside of organic vibrating diaphragm 102; Also be provided with organic vibrating diaphragm 104 of insulation at metallic film 103 upsides, be provided with monocrystalline piezoelectric potsherd 107 at these organic vibrating diaphragm 104 upsides, metallic film 103, monocrystalline piezoelectric potsherd 107 and the organic vibrating diaphragm 102,104 that is arranged on metallic film 103 both sides have constituted the vibration component of described piezoelectric ceramic loudspeaker; Flexible print wiring board 105 is pressed on the monocrystalline piezoelectric potsherd 107 and with monocrystalline piezoelectric potsherd 107 and is electrically connected, the piezo-electric acoustic generator spare that metallic film 103, monocrystalline piezoelectric potsherd 107, the organic vibrating diaphragm 102,104 that is arranged on metallic film 103 both sides and flexible print wiring board 105 have constituted described piezoelectric ceramic loudspeaker; Also be set with bonnet 106 on protecgulum 101, described piezo-electric acoustic generator spare is fixedly mounted in the cavity between bonnet 106 and the protecgulum 101, and the effect that positioning boss 1011 is set is the location and installation of convenient piezo-electric acoustic generator spare.
When by flexible print wiring board 105 incoming audio signals, according to the inverse piezoelectric effect principle of monocrystalline piezoelectric potsherd 107, the vibration component of piezoelectric ceramic loudspeaker will produce corresponding stretching, extension or contractile motion, thereby has promoted air, gives off sound.
Be provided with organic vibrating diaphragm 102,104 of insulation in the both sides of metallic film 103 after, can avoid the conducting of piezoelectric ceramic piece 107 and metallic film 103, electric current gathers or static thereby can avoid in the course of the work producing, and avoids damaging other device; In addition, after the both sides of metallic film 103 are provided with organic vibrating diaphragm 102,104, can increase vibration damping, improve the vibration performance of vibration component, thereby reach the purpose that remedies the bass deficiency, improves tonequality; Moreover, piezo-electric acoustic generator spare is installed between the protecgulum 101 and bonnet 106 of piezoelectric ceramic loudspeaker, can protect piezo-electric acoustic generator spare effectively, improve the useful life of loud speaker.
In actual use, according to the requirement of different use occasions, can change the structure and the shape of protecgulum 101 and bonnet 106, to improve tonequality, be a kind of improvement as shown in Figure 2: the cavity of protrusion can be set on protecgulum 101, also an end of bonnet 106 can be arranged to Open architecture.Above-mentioned these improvement or improved combination all should belong to the protection range of this patent.
Claims (2)
1. the dual-membrane type piezoelectric ceramic loudspeaker comprises protecgulum, it is characterized in that: be provided with organic vibrating diaphragm of insulation in described protecgulum inboard, be provided with metallic film at the upside of organic vibrating diaphragm; Also be provided with organic vibrating diaphragm of insulation at the metallic film upside, be provided with the monocrystalline piezoelectric potsherd at this organic vibrating diaphragm upside, metallic film, monocrystalline piezoelectric potsherd and the organic vibrating diaphragm that is arranged on the metallic film both sides have constituted the vibration component of described piezoelectric ceramic loudspeaker; Flexible print wiring board is pressed on the monocrystalline piezoelectric potsherd and with the monocrystalline piezoelectric potsherd and is electrically connected, and metallic film, monocrystalline piezoelectric potsherd, the organic vibrating diaphragm that is arranged on the metallic film both sides and flexible print wiring board have constituted the piezo-electric acoustic generator spare of described piezoelectric ceramic loudspeaker; Also be set with bonnet on protecgulum, described piezo-electric acoustic generator spare is fixedly mounted in the cavity between bonnet and the protecgulum.
2. according to the described dual-membrane type piezoelectric ceramic loudspeaker of claim 1, it is characterized in that: described protecgulum is provided with the convenient positioning boss that piezo-electric acoustic generator spare is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200145106U CN201986142U (en) | 2011-01-18 | 2011-01-18 | Double-film piezoelectric ceramic loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200145106U CN201986142U (en) | 2011-01-18 | 2011-01-18 | Double-film piezoelectric ceramic loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201986142U true CN201986142U (en) | 2011-09-21 |
Family
ID=44613591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200145106U Expired - Lifetime CN201986142U (en) | 2011-01-18 | 2011-01-18 | Double-film piezoelectric ceramic loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201986142U (en) |
Cited By (2)
| 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 |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
-
2011
- 2011-01-18 CN CN2011200145106U patent/CN201986142U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| 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 |
| CN106954144A (en) * | 2017-03-15 | 2017-07-14 | 四川长虹电器股份有限公司 | Television acoustics system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201210732Y (en) | Waterproof loudspeaker and waterproof electronic product using the loudspeaker | |
| CN204669603U (en) | A kind of two diaphragm loudspeaker | |
| CN102291657B (en) | Bicrystal piezoelectric ceramic loudspeaker | |
| CN103096226A (en) | Piezoelectric loudspeaker | |
| CN201986142U (en) | Double-film piezoelectric ceramic loudspeaker | |
| CN201523448U (en) | Speaker and portable electronic equipment | |
| CN102036153B (en) | Double-film type piezoelectric ceramic loudspeaker | |
| CN204887463U (en) | Terminal that vibrates vocal structure and have vocal structure of this vibration | |
| CN102075836B (en) | Single-diaphragm piezoelectric ceramic loudspeaker | |
| CN203446021U (en) | Loudspeaker module | |
| CN201467426U (en) | Composite vibrating membrane for miniature receiver or loudspeaker | |
| CN102547535A (en) | Piezoelectricity ceramic piece and piezoelectricity ceramic loudspeaker adopting same | |
| CN201328185Y (en) | Vibration speaker | |
| CN101827296A (en) | Piezoelectric ceramic loudspeaker | |
| CN201986143U (en) | Single-diaphragm type piezoelectric ceramic loudspeaker | |
| CN202121772U (en) | Macle piezoelectric ceramic loudspeaker | |
| CN203027479U (en) | Piezoelectric speaker | |
| CN202364372U (en) | Piezoelectric ceramic loudspeaker with resonant chamber | |
| CN104936111A (en) | Piezoelectric loudspeaker | |
| CN201674661U (en) | Piezoelectric ceramic loudspeaker | |
| CN203722817U (en) | Monocrystalline piezoelectric-ceramic sounder structure for mobile phone and tablet PC | |
| CN202587300U (en) | Thin-type sound cavity device | |
| CN202334875U (en) | Vibration speaker | |
| CN205105395U (en) | Moving -coil loudspeaker | |
| CN103686561A (en) | Single-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110921 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |