CN202488701U - Piezoelectric device and loudspeaker - Google Patents
Piezoelectric device and loudspeaker Download PDFInfo
- Publication number
- CN202488701U CN202488701U CN2012200103108U CN201220010310U CN202488701U CN 202488701 U CN202488701 U CN 202488701U CN 2012200103108 U CN2012200103108 U CN 2012200103108U CN 201220010310 U CN201220010310 U CN 201220010310U CN 202488701 U CN202488701 U CN 202488701U
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- conducting strip
- piezoelectric device
- patches
- piezoelectric patches
- 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
Abstract
The utility model provides a piezoelectric device which comprises a piezoelectric patch and a conductive patch electrically connected therewith. The piezoelectric patch and the conductive patch are laminated together. The piezoelectric device has the advantages of small size, high stability and high reliability. The utility model also provides a loudspeaker utilizing the above piezoelectric device.
Description
Technical field
The utility model relates to a kind of piezoelectric device and the loud speaker that uses this piezoelectric device.
Background technology
Piezoelectric device has purposes widely, for example can be applied in various pressure sensors, switch or the loud speaker.
A kind of piezoelectric ceramic loudspeaker of correlation technique is a kind of electro-acoustic transducer device of realizing electricity-mechanics-acoustics conversion through the inverse piezoelectric effect of piezoelectric ceramic devices, 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 promoted air, gave off sound.Flexible circuit board (the F1exible Printed Circuit that piezoelectric ceramic devices in the existing piezoelectric ceramic loudspeaker generally comprise piezoelectric ceramic piece, the baseplate material of setting and are used to connect the conducting terminal of piezoelectric ceramic piece; FPC); General; The range upon range of fixedly formation laminated structure of piezoelectric ceramic piece and baseplate material; Flexible circuit board is from the end of external packets confined pressure electroceramics sheet and substrate material layer, and welds together through the lead of flexible circuit board and the conducting terminal on the piezoelectric ceramic piece, realizes electrical communication.
Yet; Install and use in the process of piezoelectric ceramic devices; Piezoelectric ceramic devices directly collide with extraneous often the contact; This causes the pad between flexible circuit board and the piezoelectric ceramic piece phenomenon loosening even that come off to occur easily, directly influences the functional reliability and the stability of piezoelectric ceramic devices.Simultaneously,, also cause the volume of piezoelectric ceramic devices bigger, limited the application of piezoelectric ceramic devices in microdevice owing to outside piezoelectric ceramic piece and baseplate material formation laminated structure, coat flexible circuit board.
Therefore, be necessary to propose a kind of new technical scheme, solve the problem that above-mentioned volume is big and reliability and stability are low.
The utility model content
The technical problem that the utility model will solve provides piezoelectric device and a kind of loud speaker of using said piezoelectric device that a kind of structure is frivolous and reliability is high.
A kind of piezoelectric device, the said piezoelectric patches of conducting strip and the range upon range of setting of said conducting strip that comprise piezoelectric patches and be electrically connected with said piezoelectric patches.
According to a kind of preferred embodiment of the utility model, said piezoelectric patches comprises the piezoelectric body and is arranged on a plurality of electrodes on the piezoelectric body that said piezoelectric patches is electrically connected with said conducting strip through said a plurality of electrodes.
According to a kind of preferred embodiment of the utility model, said conducting strip comprises base material and is arranged on the many leads of answering with a plurality of electrode pairs said piezoelectric patches on the said base material that said many leads should be electrically connected with said a plurality of electrode pairs.
According to a kind of preferred embodiment of the utility model, said conducting strip also comprises first conducting terminal and second conducting terminal that is separately positioned on said lead two ends, and said first conducting terminal is connected with the electrode electricity of said piezoelectric patches.
According to a kind of preferred embodiment of the utility model, the outside that the zone at second conducting terminal of said conducting strip place extends to said piezoelectric patches forms connecting portion.
A kind of preferred embodiment according to the utility model also comprises substrate, and said piezoelectric patches and said conducting strip are range upon range of to be arranged on the said substrate, and said conducting strip is arranged between said piezoelectric patches and the said substrate.
According to a kind of preferred embodiment of the utility model, also be provided with fixed part on the said substrate.
A kind of preferred embodiment according to the utility model is characterized in that, said piezoelectric patches be piezoelectric crystal, piezoelectric ceramic or piezopolymer any one or multiple.
According to a kind of preferred embodiment of the utility model, said conducting strip is any one of flexible circuit board or winding displacement.Compared to prior art, said piezoelectric device is the sheet composite construction of piezoelectric patches, conducting strip and the range upon range of setting of substrate, and it has frivolous, microminiaturized advantage, is easily installed in the various device, especially is applied in the loud speaker of portable equipment.And said conducting strip is arranged between said piezoelectric patches and the said substrate, and said piezoelectric patches is connected with the lead of said conducting strip through the electrode on it, thereby the signal of telecommunication that piezoelectric patches produces is exported through said conducting strip.Like this; Said conducting strip and and piezoelectric patches between pad can receive the piezoelectric patches that is positioned at both sides and the protection of substrate; Avoid unnecessary the touching of itself and outer member; Greatly reduce the phenomenon of the welding loose or dislocation between said conducting strip and the piezoelectric patches, thereby improved the reliability and stability of said piezoelectric device.
Same, use the loud speaker of above-mentioned piezoelectric device and can accomplish that volume is more microminiaturized, and have higher reliability and stability.
Description of drawings
Fig. 1 is the perspective view of an embodiment of the utility model piezoelectric device.
Fig. 2 is the three-dimensional decomposition texture sketch map of piezoelectric device shown in Figure 1.
Fig. 3 is the three-dimensional decomposition texture sketch map of another angle of piezoelectric device shown in Figure 1.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model relates to a kind of piezoelectric device, and said piezoelectric device can be applied in the loud speaker.
See also Fig. 1 to Fig. 3; Fig. 1 is the perspective view of an embodiment of the utility model piezoelectric device; Fig. 2 is the three-dimensional decomposition texture sketch map of piezoelectric device shown in Figure 1, and Fig. 3 is the three-dimensional decomposition texture sketch map of another angle of the said piezoelectric device of Fig. 1.
Said piezoelectric device 100 comprises piezoelectric patches 11, conducting strip 12 and the substrate 13 of range upon range of setting in regular turn, forms the composite construction of a multilayer.
Said piezoelectric patches 11 comprises piezoelectric body 110 and is arranged on a plurality of electrodes 112 on the piezoelectric body 110.Said piezoelectric body 110 can be converted into the signal of telecommunication with pressure signal through piezoelectric effect, like the variation that produces electric current, voltage etc., and externally exports through a plurality of electrodes 112 that are provided with above that.Said piezoelectric body 110 can be an inorganic piezoelectric material; Like piezoelectric crystal or piezoelectric ceramic etc., also can be organic piezoelectric materials, like the piezopolymer of inclined to one side polyvinyl fluoride; The combined material of one or more in the yet above-mentioned multiple piezoelectric is not done concrete restriction at this.
Said conducting strip 12 comprises base material 121, be arranged on many leads 122 on the said base material 121 and be arranged on lead 122 two ends first conducting terminal 123 and second conducting terminal 124.Wherein said many leads 122 are corresponding one by one with the electrode 112 of said piezoelectric patches 11, and said so many leads 122 can be welded on through first conducting terminal 123 of its end on the electrode 112 of said piezoelectric patches 11 correspondences.
Further, conducting strip 12 zones at said second conducting terminal 124 places are extended and are formed connecting portion 127 outside the said piezoelectric patches 11, so that said second conducting terminal 124 is electrically connected with external circuit.Connecting portion 127 can design its size and shape as requested, does not do concrete restriction at this.
Said conducting strip 12 can not cooked concrete restriction at this for flexible circuit board, winding displacement etc.
Said substrate 13 is used to carry said piezoelectric patches 11 and said conducting strip 12, and has certain intensity, thereby guarantees said piezoelectric device 100 integral intensity and stability.
Further, the area of said substrate 13 is greater than the area of said piezoelectric patches 11, and its two ends protrusion forms fixed part 131, is used for said piezoelectric device 100 is fixed on other devices.The fixing hole or the other forms of fixture of forms such as through hole, half through hole can be set on the said fixed part 131, not do concrete restriction at this.
Said substrate 13 can be that materials such as metal, plastics, glass are processed, and also can be other synthetic materials, does not do concrete restriction at this.
The utility model also provides a kind of loud speaker (figure does not show) of using above-mentioned piezoelectric device 100, and said piezoelectric device 100 is used to realize the conversion of electricity one mechanics one acoustics, forms sound, and said piezoelectric device 100 can also be used to form Piezoelectric switches.
Compared to prior art; Said piezoelectric device 100 is the sheet composite construction of piezoelectric patches 11, conducting strip 12 and substrate 13 range upon range of settings; It has frivolous, microminiaturized advantage, is easily installed in the various device, especially is applied in the loud speaker of portable equipment.And said conducting strip 12 is arranged between said piezoelectric patches 11 and the said substrate 13, and said piezoelectric patches 11 is connected with the lead 122 of said conducting strip 12 through the electrode on it 112, thereby can be with the signal of telecommunication through conducting strip 12 input piezoelectric patches 11.Like this; Said conducting strip 12 and and piezoelectric patches 11 between pad can receive the piezoelectric patches 11 that is positioned at both sides and the protection of substrate 13; Avoid unnecessary the touching of itself and outer member; Greatly reduce the phenomenon of the welding loose or dislocation between said conducting strip 12 and the piezoelectric patches 11, thereby improved the reliability and stability of said piezoelectric device 100.
Equally, use the loud speaker of above-mentioned piezoelectric device 100 and can accomplish that volume is more microminiaturized, and have higher reliability and stability.
The above is merely the preferred embodiments of the utility model; The protection range of the utility model does not exceed with above-mentioned execution mode; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (10)
1. a piezoelectric device comprises piezoelectric patches and the conducting strip that is electrically connected with said piezoelectric patches, it is characterized in that said piezoelectric patches and the range upon range of setting of said conducting strip.
2. piezoelectric device according to claim 1 is characterized in that, said piezoelectric patches comprises the piezoelectric body and be arranged on a plurality of electrodes on the piezoelectric body that said piezoelectric patches is electrically connected with said conducting strip through said a plurality of electrodes.
3. piezoelectric device according to claim 2 is characterized in that, said conducting strip comprises base material and be arranged on the many leads of answering with a plurality of electrode pairs said piezoelectric patches on the said base material that said many leads should be electrically connected with said a plurality of electrode pairs.
4. piezoelectric device according to claim 3 is characterized in that, said conducting strip also comprises first conducting terminal and second conducting terminal that is separately positioned on said lead two ends, and said first conducting terminal is connected with the electrode electricity of said piezoelectric patches.
5. piezoelectric device according to claim 4 is characterized in that, the outside that the zone at second conducting terminal place of said conducting strip extends to said piezoelectric patches forms connecting portion.
6. piezoelectric device according to claim 1 is characterized in that, also comprises substrate, and said piezoelectric patches and said conducting strip are range upon range of to be arranged on the said substrate, and said conducting strip is arranged between said piezoelectric patches and the said substrate.
7. piezoelectric device according to claim 6 is characterized in that, also is provided with fixed part on the said substrate.
8. according to any described piezoelectric device among the claim 1-7, it is characterized in that, said piezoelectric patches be piezoelectric crystal, piezoelectric ceramic or piezopolymer any one or multiple.
9. according to any described piezoelectric device among the claim 1-7, it is characterized in that said conducting strip is any one of flexible circuit board or winding displacement.
10. loud speaker, it comprises piezoelectric device, it is characterized in that, said piezoelectric device is like any described piezoelectric device among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200103108U CN202488701U (en) | 2012-01-11 | 2012-01-11 | Piezoelectric device and loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200103108U CN202488701U (en) | 2012-01-11 | 2012-01-11 | Piezoelectric device and loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488701U true CN202488701U (en) | 2012-10-10 |
Family
ID=46963084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200103108U Expired - Lifetime CN202488701U (en) | 2012-01-11 | 2012-01-11 | Piezoelectric device and loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200472A (en) * | 2013-02-26 | 2013-07-10 | 广东欧珀移动通信有限公司 | Piezoelectric ceramic speaker and mobile terminal |
| CN106843508A (en) * | 2017-03-29 | 2017-06-13 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type haptic feedback module and terminal |
| CN108141673A (en) * | 2015-10-01 | 2018-06-08 | 悠声股份有限公司 | Flexible MEMS circuit board unit and electroacoustic transducer device |
-
2012
- 2012-01-11 CN CN2012200103108U patent/CN202488701U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200472A (en) * | 2013-02-26 | 2013-07-10 | 广东欧珀移动通信有限公司 | Piezoelectric ceramic speaker and mobile terminal |
| CN108141673A (en) * | 2015-10-01 | 2018-06-08 | 悠声股份有限公司 | Flexible MEMS circuit board unit and electroacoustic transducer device |
| CN108141673B (en) * | 2015-10-01 | 2020-06-26 | 悠声股份有限公司 | Flexible MEMS printed circuit board unit and acoustic transducer assembly |
| CN106843508A (en) * | 2017-03-29 | 2017-06-13 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type haptic feedback module and terminal |
| CN106843508B (en) * | 2017-03-29 | 2023-10-20 | 苏州攀特电陶科技股份有限公司 | Piezoelectric type tactile feedback module and terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8385586B2 (en) | Flat loudspeaker structure | |
| CN103200472A (en) | Piezoelectric ceramic speaker and mobile terminal | |
| CN202488701U (en) | Piezoelectric device and loudspeaker | |
| WO2011034256A1 (en) | Voice coil and smt micro speaker using same | |
| CN207304910U (en) | Vibrational system and sound-producing device in a kind of sound-producing device | |
| CN102291657B (en) | Bicrystal piezoelectric ceramic loudspeaker | |
| CN204721604U (en) | A kind of electronic equipment | |
| CN103200506A (en) | vibration horn | |
| JP5545091B2 (en) | Electrostatic speaker | |
| CN216336594U (en) | Sound production device | |
| CN203027479U (en) | Piezoelectric speaker | |
| CN203279158U (en) | Flatbed woofer | |
| US9363345B2 (en) | Cover for mobile electronic device, and mobile electronic apparatus employing same | |
| CN107564505B (en) | Piezoelectric vibration sounding module | |
| CN213403502U (en) | MEMS chip | |
| CN101827296A (en) | Piezoelectric ceramic loudspeaker | |
| CN204795586U (en) | Twin crystal piezoceramics piece, piezoceramics speaker, cell -phone, panel computer | |
| WO2020216040A1 (en) | Terminal device | |
| TW201436582A (en) | Speaker and electronic device with the speaker | |
| CN103200505A (en) | vibration horn | |
| CN201134931Y (en) | Uni-directional microphone | |
| CN114428568A (en) | Press touch structure and electronic equipment | |
| CN203722817U (en) | Monocrystalline piezoelectric-ceramic sounder structure for mobile phone and tablet PC | |
| CN206136273U (en) | Moving -coil loudspeaker | |
| CN103067839A (en) | Piezoelectric loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |