CN2886967Y - Cofired multilayer piezoelectric ceramic buzzer chip - Google Patents
Cofired multilayer piezoelectric ceramic buzzer chip Download PDFInfo
- Publication number
- CN2886967Y CN2886967Y CN 200620072789 CN200620072789U CN2886967Y CN 2886967 Y CN2886967 Y CN 2886967Y CN 200620072789 CN200620072789 CN 200620072789 CN 200620072789 U CN200620072789 U CN 200620072789U CN 2886967 Y CN2886967 Y CN 2886967Y
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- piezoelectric ceramic
- silver layer
- layer electrode
- resonance piece
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Abstract
The utility model relates to an electroacoustic product in particular to a laminated co-burnt piezoelectric ceramic buzzing piece. The utility model consists of a piezoelectric ceramic vibrator and a metal piece. Silver electrodes are arranged on the two sides of the piezoelectric ceramic piece; the piezoelectric ceramic vibrator is glued with the single side or two sides of the metal piece and the piezoelectric ceramic vibrator comprises two or more co-burnt piezoelectric ceramic pieces connected by the silver electrodes in parallel connection. The utility model has the advantages that two or more shunt-wound piezoelectric ceramic pieces enlarge capacity, decrease capacitive reactance, increase voltage endurance and improve micro dislocation and sensibility which is propitious to reduce the production size.
Description
Technical field
The utility model relates to a kind of electro-acoustic product, and especially a kind of lamination burns the piezoelectric ceramic piezo altogether.
Background technology
The piezoelectric ceramic piezo is the indispensable part of piezoelectric electro electroacoustic product.Traditional product all has only single face piezoelectric ceramic piezo now, be glued on the metal substrate by a slice piezoelectric ceramic resonance piece to constitute, and perhaps two-sided piezoelectric ceramic piezo, the two sides that is glued at metal substrate respectively by two piezoelectric ceramic resonance pieces constitutes.
The piezoelectric ceramic piezo is graded with operatic tunes shell (containing leading-out terminal) or circuit part and is formed various piezoelectric electro electroacoustic products.High-fidelityization, chip type, microminiaturization, slimming, low-power consumption, high power, multi-functional, development trend that modularization becomes electro-acoustic product.The matched microminiature of communication products, ultrathin type, highly reliable, wide band acoustic device are product and the projects of giving priority to from now on.It is exactly to realize the best piezoelectric electro electroacoustic product of above-mentioned requirements that lamination burns the piezoelectric ceramic piezo altogether.
Summary of the invention
Be subjected to restrictions such as product size size for the capacitance that overcomes the piezoelectric ceramic piezo, the utility model provides a kind of lamination to burn the piezoelectric ceramic piezo altogether.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of lamination burns the piezoelectric ceramic piezo altogether, have piezoelectric ceramic resonant body and metal substrate, the piezoelectric ceramic resonant body is made up of piezoelectric ceramic resonance piece and silver layer electrode, the piezoelectric ceramic resonant body is glued at the single or double of metal substrate, and the piezoelectric ceramic resonant body is formed by the mechanical series capacitance common burning that is connected in parallel by two or above piezoelectric ceramic resonance piece.
The parallel-connection structure of piezoelectric ceramic resonance piece can adopt following structure: the silver layer electrode that is arranged on the piezoelectric ceramic resonance piece isoplanar is made up of disjunct two parts, wherein a part links to each other with the silver layer electrode on another plane of same piezoelectric ceramic resonance piece, adjacent piezoelectric ceramic resonance piece stack, the silver layer electrode of corresponding position interconnects.
Specifically be, silver layer electrode structure on the piezoelectric ceramic resonance piece and the mode of interconnecting are: the silver layer electrode that is arranged on the piezoelectric ceramic resonance piece is made up of big silver layer electrode and little silver layer electrode, big silver layer electrode and little silver layer electrode are provided with plated-through hole, and the big silver layer electrode of homonymy links to each other by plated-through hole with big silver layer electrode with the little silver layer electrode of offside respectively with little silver layer electrode.
The beneficial effects of the utility model are that two-layer or above piezoelectric ceramic resonance piece adopts the common burning that is connected in parallel, and can enlarge capacitance (generally can enlarge more than 5 times), reduce capacitive reactance, increases withstand voltage, raising micrometric displacement amount, improve sensitivity, help dwindling small product size.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model piezoelectric ceramic resonant body structural representation.
Fig. 2 is the piezoelectric ceramic resonant body lamination decomposing schematic representation of the utility model three-decker.
Fig. 3 is the structure diagram that the single face lamination burns the piezoelectric ceramic piezo altogether.
Fig. 4 is the structure diagram that two-sided lamination burns the piezoelectric ceramic piezo altogether.
1. piezoelectric ceramic resonant bodies, 2. metal substrates, 3. piezoelectric ceramic resonance pieces, 4. silver layer electrodes, 5. plated-through holes among the figure
Embodiment
A kind of lamination burns the piezoelectric ceramic piezo altogether, have piezoelectric ceramic resonant body 1 and metal substrate 2, piezoelectric ceramic resonant body 1 is made up of piezoelectric ceramic resonance piece 3 and silver layer electrode 4, silver layer electrode 4 is on the two sides of piezoelectric ceramic resonance piece 3, piezoelectric ceramic resonant body 1 is glued at the single or double of metal substrate 2, and described piezoelectric ceramic resonant body 1 is formed by the silver layer electrode 4 common burning that is connected in parallel by two or above piezoelectric ceramic resonance piece 3.
The concrete structure of piezoelectric ceramic resonant body 1 such as Fig. 1, shown in Figure 2, form by two or above piezoelectric ceramic resonance piece 3 with the piezoelectric ceramic resonant body 1 of metal substrate 2 gummed, the silver layer electrode 4 that is arranged on piezoelectric ceramic resonance piece 3 isoplanars is the conductive layer of silver layer or other material, in order to make lamination be connected into parallel connection, the silver layer electrode 4 that is arranged on piezoelectric ceramic resonance piece 3 isoplanars is made up of disjunct big silver layer electrode and little silver layer electrode two parts, big silver layer electrode and little silver layer electrode are provided with plated-through hole 5, and the big silver layer electrode of homonymy links to each other by plated-through hole 5 with big silver layer electrode with the little silver layer electrode of offside respectively with little silver layer electrode; Big silver layer electrode interconnected with big silver layer electrode, little silver layer electrode and little silver layer electrode when adjacent piezoelectric ceramic resonance piece 3 superposeed.
If more piezoelectric ceramic resonance piece 3 stacks are arranged, and the like.
The single face lamination burns the piezoelectric ceramic piezo as shown in Figure 3 altogether, burns piezoelectric ceramic resonant body 1 altogether by a slice lamination (two-layer or more than), forms with metal substrate 2 gummeds; Two-sided lamination burns the piezoelectric ceramic piezo as shown in Figure 4 altogether, burns piezoelectric ceramic resonant body 1 altogether by two laminations (two-layer or more than), and the two sides that is glued at metal substrate 2 is respectively formed.
The piezoelectric electro electroacoustic product can burn piezoelectric ceramic piezo, operatic tunes shell, leading-out terminal or circuit etc. altogether by lamination and constitute.Can make piezoelectric speaker, piezo receiver and piezoelectricity sound device etc.
Claims (3)
1. a lamination burns the piezoelectric ceramic piezo altogether, have piezoelectric ceramic resonant body (1) and metal substrate (2), piezoelectric ceramic resonant body (1) is made up of piezoelectric ceramic resonance piece (3) and silver layer electrode (4), silver layer electrode (4) is on the two sides of piezoelectric ceramic resonance piece (3), piezoelectric ceramic resonant body (1) is glued at the single or double of metal substrate (2), it is characterized in that: described piezoelectric ceramic resonant body (1) is formed by silver layer electrode (4) the common burning that is connected in parallel by two or above piezoelectric ceramic resonance piece (3).
2. lamination according to claim 1 burns the piezoelectric ceramic piezo altogether, it is characterized in that: the silver layer electrode (4) that is arranged on the piezoelectric ceramic resonance piece (3) is formed by disjunct two parts, and each part links to each other with the silver layer electrode (4) of same piezoelectric ceramic resonance piece (3) offside respectively; The silver layer electrode (4) of corresponding position interconnected when adjacent piezoelectric ceramic resonance piece (3) superposeed.
3. lamination according to claim 2 burns the piezoelectric ceramic piezo altogether, it is characterized in that: the silver layer electrode (4) that is arranged on the piezoelectric ceramic resonance piece (3) is made up of big silver layer electrode and little silver layer electrode, big silver layer electrode and little silver layer electrode are provided with plated-through hole (5), and the big silver layer electrode of homonymy links to each other by plated-through hole (5) with big silver layer electrode with the little silver layer electrode of offside respectively with little silver layer electrode; Big silver layer electrode interconnected with big silver layer electrode, little silver layer electrode and little silver layer electrode when adjacent piezoelectric ceramic resonance piece (3) superposeed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072789 CN2886967Y (en) | 2006-04-20 | 2006-04-20 | Cofired multilayer piezoelectric ceramic buzzer chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072789 CN2886967Y (en) | 2006-04-20 | 2006-04-20 | Cofired multilayer piezoelectric ceramic buzzer chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886967Y true CN2886967Y (en) | 2007-04-04 |
Family
ID=37962051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072789 Expired - Lifetime CN2886967Y (en) | 2006-04-20 | 2006-04-20 | Cofired multilayer piezoelectric ceramic buzzer chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886967Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777884B (en) * | 2009-12-30 | 2011-12-07 | 哈尔滨理工大学 | Manufacturing method of laminated piezoelectric vibrator of micro-electromechanical system |
| CN104446464A (en) * | 2014-11-07 | 2015-03-25 | 东莞思威特电子有限公司 | Buzzer suitable for two-time reflow soldering temperature |
| CN105637898A (en) * | 2014-09-26 | 2016-06-01 | 京瓷株式会社 | Sound generator, sound generating device, and electronic apparatus |
-
2006
- 2006-04-20 CN CN 200620072789 patent/CN2886967Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777884B (en) * | 2009-12-30 | 2011-12-07 | 哈尔滨理工大学 | Manufacturing method of laminated piezoelectric vibrator of micro-electromechanical system |
| CN105637898A (en) * | 2014-09-26 | 2016-06-01 | 京瓷株式会社 | Sound generator, sound generating device, and electronic apparatus |
| CN104446464A (en) * | 2014-11-07 | 2015-03-25 | 东莞思威特电子有限公司 | Buzzer suitable for two-time reflow soldering temperature |
| CN104446464B (en) * | 2014-11-07 | 2016-10-12 | 广东思威特智能科技股份有限公司 | A kind of piezo adapting to twice reflow soldering temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070404 |
|
| EXPY | Termination of patent right or utility model |