CN201200971Y - Piezoelectric vibrator - Google Patents
Piezoelectric vibrator Download PDFInfo
- Publication number
- CN201200971Y CN201200971Y CNU2008200944959U CN200820094495U CN201200971Y CN 201200971 Y CN201200971 Y CN 201200971Y CN U2008200944959 U CNU2008200944959 U CN U2008200944959U CN 200820094495 U CN200820094495 U CN 200820094495U CN 201200971 Y CN201200971 Y CN 201200971Y
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- Prior art keywords
- piezoelectric
- piezoelectric patches
- utility
- model
- piezoelectric vibrator
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Abstract
The utility model provides a piezoelectric vibrator which comprises a piezoelectric sheet for producing vibration, a side frame for positioning and bearing the periphery of the piezoelectric sheet, and a protruding block arranged on the piezoelectric sheet and a balance weight block which is connected with the protruding block and is relative to the piezoelectric sheet. Compared with the prior art, the piezoelectric vibrator needs small elements, is thin in the thickness and has the advantages of easy assembling and small size; moreover, the piezoelectric sheet has high driving efficiency and can save electricity.
Description
[technical field]
The utility model relates to a kind of vibrator, relates in particular to a kind of piezoelectric type vibration device that uses piezoelectric element.
[background technology]
In the process of portable consumer electronics device fast developments such as mobile phone, people are more and more to the functional requirement of product.As, except that the caller voice prompt facility, for the function that makes product is more, the pattern of vibration prompt and vibration pronunciation has appearred also.
Be applied to the vibration machine of portable consumer electronics device such as mobile phone, convert electric energy to mechanical energy.Its traditional structure is generally the moving-coil type vertical vibrator, it as the patent No. of on December 6th, 2006 bulletin 200520130280.4 Chinese utility model patent, disclosed a kind of vibrator, comprised circuit board, the voice coil loudspeaker voice coil that links to each other with circuit board, linked to each other with circuit board and form the housing of accommodating cavity.In cavity, be provided with the vibration unit of suspension, this vibration unit comprises that bowl-shape magnetic conductor, magnetic conductor are provided with circular magnet, are arranged on pole piece on the magnet, are looped around the balancing weight of magnetic conductor week side, and is fixed on the housing and with above-mentioned magnetic conductor, circular magnet, pole piece, balancing weight and is suspended on the elastic sheet of accommodating in the cavity.Utilize this kind structure, mechanical oscillation can take place in vibration unit under the elastic vibration of elastic sheet.
Above-mentioned moving-coil type vertical vibrator has some not enough: (1), its magnetic circuit system cooperate with the moving-coil system, and required element is various, and the thickness of each element all has certain restriction, thereby its thickness does not reach desirable effect; (2), its energy utilization efficiency is low; (3), parts are various, the combination assembling is complicated.
Thereby, study a kind of new vibrator to overcome above-mentioned deficiency by necessity.
[utility model content]
It is little that the technical problem that the utility model need solve provides a kind of volume, simple in structure, the piezoelectric vibrator that efficient is high.
According to the above-mentioned technical problem that needs solution, designed a kind of piezoelectric vibrator, described piezoelectric vibrator comprises vibrative piezoelectric patches, location and supports the frame of described piezoelectric patches periphery, is installed in projection on the piezoelectric patches, connects and the balancing weight relative with piezoelectric patches with projection.
As step improvement of the present utility model, described projection is positioned at the central area of piezoelectric patches.
As further improvement of the utility model, described piezoelectric patches be shaped as circle, the shape of frame matches.
Compared with prior art, few, the thin thickness of the required number of elements of the utility model piezoelectric vibrator, thus have easy assembling, advantage that volume is little, and piezoelectric patches wherein drives the efficient height, but power saving.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of each element of the utility model piezoelectric vibrator;
Fig. 2 is the schematic perspective view of the utility model piezoelectric vibrator;
Fig. 3 is the cross-sectional schematic of A-A direction among Fig. 2;
[specific embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As Fig. 1, Fig. 2, shown in Figure 3, the utility model piezoelectric vibrator 10 comprises frame 1, piezoelectric patches 2, projection 3, balancing weight 4.
Piezoelectric patches has inverse piezoelectric effect, promptly under the effect of extra electric field, mechanically deform takes place.Piezoelectric patches is made by the piezoelectric with piezo-electric effect characteristic, and piezoelectric generally comprises piezo-electric crystal, piezoelectric ceramics, organic polymer piezoelectric.The utility model piezoelectric patches 2 is made by the high piezoceramic material of sensitivity.Its shape can be made into shapes such as circle, rectangle, runway, the utility model piezoelectric patches 2 be shaped as circle.
Frame 1 is used to locate and support the periphery (being surrounding edge) of piezoelectric patches 2, and its shape and piezoelectric patches 2 couplings are so be circular.
The shape of balancing weight 4 also is circular, and with piezoelectric patches 2 opposing parallel, it is generally made by the metallic iron material.
Projection is an iron plate 3 that is positioned at the central area of piezoelectric patches, links to each other with balancing weight 4, and its effect is to strike piezoelectric patches 2 when preventing balancing weight 4 vibration downwards and make a noise even break piezoelectric patches 2.Projection is generally made by the metallic iron material, and it can also be processed into integrative-structure with balancing weight.
The operation principle of the utility model piezoelectric vibrator is: inverse piezoelectric effect takes place in piezoelectric patches 2 when feeding the low-frequency ac signal of telecommunication, produce vibration, simultaneously, drives balancing weight 4 and vibrates together.Be applied in the cell phone, can be used as the noiseless vibration prompt of incoming call.
Few, the thin thickness of the required number of elements of the utility model piezoelectric vibrator, thus easy assembling, advantage that volume is little had, and piezoelectric patches wherein drives the efficient height, but power saving.
Above-described only is embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection domain of the present utility model.
Claims (3)
1, a kind of piezoelectric vibrator is characterized in that: described piezoelectric vibrator comprises vibrative piezoelectric patches, location and supports the frame of described piezoelectric patches periphery, is installed in projection on the piezoelectric patches, connects and the balancing weight relative with piezoelectric patches with projection.
2, piezoelectric vibrator according to claim 1 is characterized in that: described projection is positioned at the central area of piezoelectric patches.
3, piezoelectric vibrator according to claim 1 and 2 is characterized in that: described piezoelectric patches be shaped as circle, the shape of frame matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200944959U CN201200971Y (en) | 2008-05-16 | 2008-05-16 | Piezoelectric vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200944959U CN201200971Y (en) | 2008-05-16 | 2008-05-16 | Piezoelectric vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201200971Y true CN201200971Y (en) | 2009-03-04 |
Family
ID=40423282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200944959U Expired - Lifetime CN201200971Y (en) | 2008-05-16 | 2008-05-16 | Piezoelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201200971Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2470457C2 (en) * | 2010-03-17 | 2012-12-20 | Сейко Эпсон Корпорейшн | Vibrator, vibration transducer, vibration generator and electronic device |
| CN103182372A (en) * | 2011-12-30 | 2013-07-03 | 广州市番禺奥迪威电子有限公司 | Ultrasonic sending piezoelectric element |
| CN103386397A (en) * | 2012-05-08 | 2013-11-13 | 三星电机株式会社 | Piezoelectric vibration module |
| CN103492091A (en) * | 2011-04-19 | 2014-01-01 | 日本电气株式会社 | Piezoelectric actuator and electronic device having piezoelectric actuator mounted thereon |
| CN104158432A (en) * | 2013-05-13 | 2014-11-19 | 三星电机株式会社 | Vibration generating apparatus |
-
2008
- 2008-05-16 CN CNU2008200944959U patent/CN201200971Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2470457C2 (en) * | 2010-03-17 | 2012-12-20 | Сейко Эпсон Корпорейшн | Vibrator, vibration transducer, vibration generator and electronic device |
| CN103492091A (en) * | 2011-04-19 | 2014-01-01 | 日本电气株式会社 | Piezoelectric actuator and electronic device having piezoelectric actuator mounted thereon |
| CN103182372A (en) * | 2011-12-30 | 2013-07-03 | 广州市番禺奥迪威电子有限公司 | Ultrasonic sending piezoelectric element |
| CN103386397A (en) * | 2012-05-08 | 2013-11-13 | 三星电机株式会社 | Piezoelectric vibration module |
| CN104158432A (en) * | 2013-05-13 | 2014-11-19 | 三星电机株式会社 | Vibration generating apparatus |
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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: 20090304 |
|
| CX01 | Expiry of patent term |