CN201557254U - Piezoelectric vibration acoustic generator - Google Patents
Piezoelectric vibration acoustic generator Download PDFInfo
- Publication number
- CN201557254U CN201557254U CN2009202052113U CN200920205211U CN201557254U CN 201557254 U CN201557254 U CN 201557254U CN 2009202052113 U CN2009202052113 U CN 2009202052113U CN 200920205211 U CN200920205211 U CN 200920205211U CN 201557254 U CN201557254 U CN 201557254U
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- piezoelectric
- piezoelectric vibration
- utility
- model
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Abstract
The utility model provides a piezoelectric vibration acoustic generator, which comprises a metal sheet, the metal sheet comprises a positive surface and a reverse surface which are opposite with each other. Only the positive surface of the metal sheet is provided with piezoelectric patches, an electrode which is electrically connected with an external circuit is arranged on the piezoelectric patches. When audio signal is passed into the electrode, the piezoelectric vibration acoustic generator gives off sound. When vibration frequency signal is passed into the electrode, the piezoelectric patches together with the metal sheet generate the vibration. Compared with the prior art, the quantity of elements which are needed by the piezoelectric vibration acoustic generator of the utility model is less, the thickness is thin, thus the piezoelectric vibration acoustic generator has the advantages that the assembly is easy and the volume is small.
Description
[technical field]
The utility model relates to a kind of vibration sounding device, relates in particular to a kind of piezoelectric type vibration sounding device.
[background technology]
Present most widely used vibration sounding device is a moving-coil structure, and relevant moving-coil type vibration sounding device mainly comprises auxiliary system, sonification system (being speaker system), vibrational system (being vibrator system).Described auxiliary system comprises: protecgulum and bonnet that basin frame, basin frame link to each other.Described vibrational system comprises: be supported on latch plate in the basin frame, be suspended on oscillator on the latch plate, be contained in the oscillator and form the permanent magnet and the pole piece of magnetic gap with oscillator.Described sonification system comprises: be connected to vibrating diaphragm on the basin frame with protecgulum, link to each other with vibrating diaphragm and be suspended in the voice coil loudspeaker voice coil in the magnetic gap.This vibration sounding device 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 volume does not reach desirable effect; (2) parts are various, the combine and assemble complexity, thus cause complex manufacturing, the cost height.
Thereby, study a kind of new vibration sounding device 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, piezoelectric vibration acoustical generator simple in structure.
According to the above-mentioned technical problem that needs solution, designed a kind of piezoelectric vibration acoustical generator, it comprises that sheet metal, sheet metal comprise relative front surface and anti-surface, and sheet metal only front surface is provided with piezoelectric patches, and piezoelectric patches is provided with the electrode that is electrical connected with external circuit.
Further improve as the utility model, described electrode links to each other with external circuit by lead.
Further improve as the utility model, described piezoelectric patches comprises the multi-layer ceramic chip that is sintered into one.
Compared with prior art, few, the thin thickness of the required number of elements of the utility model piezoelectric vibration acoustical generator is so have easy assembling, advantage that volume is little.
[description of drawings]
Fig. 1 is the schematic perspective view of the utility model piezoelectric vibration acoustical generator;
Fig. 2 is the decomposing schematic representation of the utility model piezoelectric vibration acoustical generator;
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As depicted in figs. 1 and 2, the utility model execution mode piezoelectric vibration acoustical generator 20 comprises sheet metal 21, piezoelectric patches 22.
Sheet metal can select flexibility, light metal thin plate to make.It comprises relative front surface 21a and anti-surface (not indicating), and front surface mounts piezoelectric patches, and anti-surface then is used to be mounted on the outer carrier of application.Be that sheet metal only has only a side surface to mount piezoelectric patches.
For applying electric field to piezoelectric patches, the utility model is provided with electrode 23 on piezoelectric patches, and electrode can form by printing conductive elargol on piezoelectric patches.For making printing operation convenient, electrode of the present utility model is printed on the side surface of piezoelectric patches away from sheet metal, certainly, also can be printed on the side surface of piezoelectric patches and sheet metal applying.
The utility model execution mode adopts lead 24 and realizes that electrode 23 links to each other with external circuit, and lead links to each other with external circuit with electrode, thereby applies electric field to piezoelectric patches.
When the utility model piezoelectric vibration acoustical generator uses, with the anti-surface mount of sheet metal 21 externally on the carrier, as be mounted on the LCD Screen (LCDs).When feeding audio signal (as 300HZ～3.4kHZ signal of telecommunication) to electrode, this piezoelectric vibration acoustical generator is sounded.When feeding vibration frequency signal (as the 200Hz signal of telecommunication) to electrode, piezoelectric patches produces vibration together with sheet metal.
Few, the thin thickness of the required number of elements of the utility model piezoelectric vibration acoustical generator is so have easy assembling, advantage that volume is little.
Above-described only is execution mode 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 range of the present utility model.
Claims (3)
1. piezoelectric vibration acoustical generator, it is characterized in that: described piezoelectric vibration acoustical generator comprises that sheet metal, sheet metal comprise relative front surface and anti-surface, sheet metal only front surface is provided with piezoelectric patches, and piezoelectric patches is provided with the electrode that is electrical connected with external circuit.
2. piezoelectric vibration acoustical generator according to claim 1 is characterized in that: described electrode links to each other with external circuit by lead.
3. piezoelectric vibration acoustical generator according to claim 1 is characterized in that: described piezoelectric patches comprises the multi-layer ceramic chip that is sintered into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202052113U CN201557254U (en) | 2009-09-28 | 2009-09-28 | Piezoelectric vibration acoustic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202052113U CN201557254U (en) | 2009-09-28 | 2009-09-28 | Piezoelectric vibration acoustic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201557254U true CN201557254U (en) | 2010-08-18 |
Family
ID=42616944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202052113U Expired - Lifetime CN201557254U (en) | 2009-09-28 | 2009-09-28 | Piezoelectric vibration acoustic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201557254U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442319A (en) * | 2013-09-03 | 2013-12-11 | 深圳市中兴移动通信有限公司 | Mobile terminal |
| CN103686559A (en) * | 2012-09-25 | 2014-03-26 | Tdk株式会社 | Piezoelectric sounder |
| CN106371615A (en) * | 2016-11-23 | 2017-02-01 | 苏州攀特电陶科技股份有限公司 | Tactile feedback module and button |
-
2009
- 2009-09-28 CN CN2009202052113U patent/CN201557254U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686559A (en) * | 2012-09-25 | 2014-03-26 | Tdk株式会社 | Piezoelectric sounder |
| CN103686559B (en) * | 2012-09-25 | 2017-04-26 | Tdk株式会社 | Piezoelectric sounder |
| CN103442319A (en) * | 2013-09-03 | 2013-12-11 | 深圳市中兴移动通信有限公司 | Mobile terminal |
| CN106371615A (en) * | 2016-11-23 | 2017-02-01 | 苏州攀特电陶科技股份有限公司 | Tactile feedback module and button |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |