CN204392564U - Lever piezoelectric speaker - Google Patents
Lever piezoelectric speaker Download PDFInfo
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- CN204392564U CN204392564U CN201420853572.XU CN201420853572U CN204392564U CN 204392564 U CN204392564 U CN 204392564U CN 201420853572 U CN201420853572 U CN 201420853572U CN 204392564 U CN204392564 U CN 204392564U
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- protruding block
- supporting lug
- piezoelectric ceramic
- ceramic driver
- lever
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Abstract
The utility model relates to lever piezoelectric speaker, comprise upper bracket, lower carriage, stacked piezoelectric ceramic driver, the compound voice diaphragm compressed by upper bracket and lower carriage and the lever arm be arranged between compound voice diaphragm and stacked piezoelectric ceramic driver, lever arm one end arranges the upper protruding block raised up, the other end arranges the lower protruding block to lower convexity, lever arm is also provided with supporting lug, supporting lug is greater than the distance of supporting lug to lower protruding block to the distance of upper protruding block, stacked piezoelectric ceramic driver is arranged on lower carriage, upper protruding block contacts with compound voice diaphragm, lower protruding block contacts with stacked piezoelectric ceramic driver, lower carriage arranges back-up block, back-up block arranges magnet steel, magnet steel is connected with supporting lug magnetic, after adopting said structure, the volume that the utility model can solve existing piezoelectric speaker does not reach the problem of market demands, reduce piezoelectric speaker resonance frequency simultaneously, improve the tonequality of piezoelectric speaker.
Description
Technical field
The utility model relates to a kind of loud speaker, particularly lever piezoelectric speaker.
Background technology
The ultra-thin size of piezoelectric speaker is always by the concern of design engineer, but itself volume is low, and resonance frequency is high, and sense of hearing is poor, so be difficult in marketing and use.
Summary of the invention
The purpose of this utility model be to provide a kind of can improve sound pressure level output, the lever piezoelectric speaker that reduces harmonic frequency of loudspeakers, improve loud speaker tonequality.
The technical scheme realizing the utility model object is as follows:
Lever piezoelectric speaker, comprise upper bracket and lower carriage, also comprise stacked piezoelectric ceramic driver, the compound voice diaphragm compressed by upper bracket and lower carriage and the lever arm be arranged between compound voice diaphragm and stacked piezoelectric ceramic driver, described lever arm one end arranges the upper protruding block raised up, the other end arranges the lower protruding block to lower convexity, described lever arm is also provided with supporting lug, described supporting lug is greater than the distance of supporting lug to lower protruding block to the distance of upper protruding block, described stacked piezoelectric ceramic driver is arranged on lower carriage, described upper protruding block contacts with compound voice diaphragm, described lower protruding block contacts with stacked piezoelectric ceramic driver, described lower carriage arranges back-up block, described back-up block arranges magnet steel, described magnet steel is connected with supporting lug magnetic.
After adopting said structure, the utility model utilizes multi-layered ceramic as driving, utilizes lever arm to be amplified by piezoelectric ceramic amplitude, improves front end sound film amplitude, thus improve the output of sound pressure level.The volume that can solve existing piezoelectric speaker does not reach the problem of market demands, reduces piezoelectric speaker resonance frequency simultaneously, improves the tonequality of piezoelectric speaker.
Further, in order to improve loud speaker tonequality, described compound voice diaphragm upper surface arranges ball top, and on described compound voice diaphragm, both sides, ball top arrange projection.
Preferably, in order to make have comparatively large amplitude and actuating force during driver drives, the described stacked piezoelectric ceramic driver number of plies is 5-7 layer, and capacitance is 2uF.
Further, in order to by stacked piezoelectric ceramic driver Amplitude amplification 3 times, described supporting lug is supporting lug to 3 times of distance of lower protruding block to the distance of upper protruding block.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is sectional structure schematic diagram of the present utility model.
In figure: 1 is upper bracket, 2 is lower carriage, and 3 is stacked piezoelectric ceramic driver, and 4 is compound voice diaphragm, and 5 is lever arm, and 6 is upper protruding block, and 7 is lower protruding block, and 8 is supporting lug, and 9 is back-up block, and 10 is magnet steel, and 11 is ball top.
Embodiment
The utility model lever piezoelectric speaker comprises upper bracket 1 as shown in Figure 1, lower carriage 2, stacked piezoelectric ceramic driver 3, the compound voice diaphragm 4 compressed by upper bracket 1 and lower carriage 2 and the lever arm 5 be arranged between compound voice diaphragm 4 and stacked piezoelectric ceramic driver 3, described lever arm 5 one end arranges the upper protruding block 6 raised up, the other end arranges the lower protruding block 7 to lower convexity, described lever arm 5 is also provided with supporting lug 8, described supporting lug 8 is greater than the distance of supporting lug 8 to lower protruding block 7 to the distance of upper protruding block 6, described stacked piezoelectric ceramic driver 3 is arranged on lower carriage 2, described upper protruding block 6 contacts with compound voice diaphragm 4, described lower protruding block 7 contacts with stacked piezoelectric ceramic driver 3, described lower carriage 2 arranges back-up block 9, described back-up block 9 arranges magnet steel 10, described magnet steel 10 is connected with supporting lug 8 magnetic, described compound voice diaphragm 4 upper surface arranges ball top 11, on described compound voice diaphragm 4, both sides, ball top 11 arrange projection, described stacked piezoelectric ceramic driver 3 number of plies is 5-7 layer, capacitance is 2uF.
When needs are by stacked piezoelectric ceramic driver 3 Amplitude amplification 3 times, only needing to be set to supporting lug 8 to the distance of upper protruding block 6 is supporting lugs 8 to 3 times of distance of lower protruding block 7.
After adopting said structure, the utility model utilizes multi-layered ceramic as driving, utilizes lever arm to be amplified by piezoelectric ceramic amplitude, improves front end sound film amplitude, thus improve the output of sound pressure level.The volume that can solve existing piezoelectric speaker does not reach the problem of market demands, reduces piezoelectric speaker resonance frequency simultaneously, improves the tonequality of piezoelectric speaker.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. lever piezoelectric speaker, comprise upper bracket and lower carriage, it is characterized in that: also comprise stacked piezoelectric ceramic driver, the compound voice diaphragm compressed by upper bracket and lower carriage and the lever arm be arranged between compound voice diaphragm and stacked piezoelectric ceramic driver, described lever arm one end arranges the upper protruding block raised up, the other end arranges the lower protruding block to lower convexity, described lever arm is also provided with supporting lug, described supporting lug is greater than the distance of supporting lug to lower protruding block to the distance of upper protruding block, described stacked piezoelectric ceramic driver is arranged on lower carriage, described upper protruding block contacts with compound voice diaphragm, described lower protruding block contacts with stacked piezoelectric ceramic driver, described lower carriage arranges back-up block, described back-up block arranges magnet steel, described magnet steel is connected with supporting lug magnetic.
2. lever piezoelectric speaker according to claim 1, is characterized in that: described compound voice diaphragm upper surface arranges ball top, and on described compound voice diaphragm, both sides, ball top arrange projection.
3. lever piezoelectric speaker according to claim 1, is characterized in that: the described stacked piezoelectric ceramic driver number of plies is 5-7 layer, and capacitance is 2uF.
4. according to the lever piezoelectric speaker in claim 1 or 2 or 3 described in any one, it is characterized in that: described supporting lug is supporting lug to 3 times of distance of lower protruding block to the distance of upper protruding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853572.XU CN204392564U (en) | 2014-12-29 | 2014-12-29 | Lever piezoelectric speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853572.XU CN204392564U (en) | 2014-12-29 | 2014-12-29 | Lever piezoelectric speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392564U true CN204392564U (en) | 2015-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853572.XU Active CN204392564U (en) | 2014-12-29 | 2014-12-29 | Lever piezoelectric speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392564U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507028A (en) * | 2014-12-29 | 2015-04-08 | 汉得利（常州）电子股份有限公司 | Lever type piezoelectric loudspeaker |
| CN111356065A (en) * | 2018-12-20 | 2020-06-30 | 北京小米移动软件有限公司 | Sound production module and electronic equipment |
-
2014
- 2014-12-29 CN CN201420853572.XU patent/CN204392564U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104507028A (en) * | 2014-12-29 | 2015-04-08 | 汉得利（常州）电子股份有限公司 | Lever type piezoelectric loudspeaker |
| CN111356065A (en) * | 2018-12-20 | 2020-06-30 | 北京小米移动软件有限公司 | Sound production module and electronic equipment |
| CN111356065B (en) * | 2018-12-20 | 2021-12-28 | 北京小米移动软件有限公司 | Sound production module and electronic equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |