CN203027479U - Piezoelectric speaker - Google Patents
Piezoelectric speaker Download PDFInfo
- Publication number
- CN203027479U CN203027479U CN 201220709834 CN201220709834U CN203027479U CN 203027479 U CN203027479 U CN 203027479U CN 201220709834 CN201220709834 CN 201220709834 CN 201220709834 U CN201220709834 U CN 201220709834U CN 203027479 U CN203027479 U CN 203027479U
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- China
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- piezoelectric
- strutting piece
- vibrating diaphragm
- piezoelectric speaker
- shell
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Abstract
The utility model discloses a piezoelectric speaker. The speaker comprises a shell, an outer frame used for forming the piezoelectric speaker, speaking holes formed in the shell, a speaking part, a transmission part and a vibration part, wherein the speaking part is a vibrating diaphragm arranged corresponding to the speaking holes; the transmission part comprises a bracket and a transmission plate which is closely combined with one side of the vibrating diaphragm, far from the speaking holes; the vibrating diaphragm, the transmission plate and the bracket are combined sequentially; the vibration part comprises piezoelectric plates which are electrically connected with an external circuit and a plurality of independently arranged supporting parts; the piezoelectric plates are arranged on the supporting parts correspondingly; the supporting parts are arranged inside the shell in a suspending manner; and one end of each supporting part is fixed on the shell, and the other end of each supporting part is fixed on the bracket. The piezoelectric speaker has the advantage of good acoustic performance.
Description
Technical field
The utility model relates to the loud speaker field, especially relates to a kind of piezoelectric speaker.
Background technology
In the consumer electronics products such as electronic product, household appliances, loud speaker is widely used.Along with the development of science and technology, consumer electronics product is more and more perfect, and people are more and more higher to its shape requirement, and its thickness is more and more less, and is simultaneously, also more and more higher to the requirement of miniaturization, slimming and the sound performance of speaker unit.
Piezoelectric speaker is compared with the conventional loudspeakers device, simple structure, and volume is little, and cost is low, and electro-acoustic conversion efficiency is high.But present piezoelectric speaker exists LF-response poor, and sound is the defective such as unmelodious sharply, is difficult to satisfy people to the requirement of acoustical behavior.
Therefore, be necessary to provide a kind of improvement, the defective that exists to overcome present piezoelectric speaker.
The utility model content
Technical problem to be solved in the utility model is to provide the good piezoelectric speaker of a kind of acoustical behavior.
To achieve these goals, the utility model by the following technical solutions: a kind of piezoelectric speaker comprises: shell, form the external frame of described piezoelectric speaker, be provided with phonate hole on described shell; And: also comprise audible segment, described audible segment comprises the vibrating diaphragm that corresponding described phonate hole arranges; Running part, described running part comprise that support reaches and the driver plate of described vibrating diaphragm away from the described phonate hole one airtight combination of side, described vibrating diaphragm, driver plate and the combination successively of described support; Oscillating component comprises the piezoelectric patches and a plurality of independent strutting piece that arranges that are electrically connected to external circuit, and described piezoelectric patches correspondence is arranged on described strutting piece; The inside that is hung on described shell of described strutting piece, one end are fixed on described shell, and the other end is fixed on described support.
As a kind of preferred technical scheme, be provided with arrangements of electric connection between described piezoelectric patches and described external circuit; Described strutting piece is sheet metal, and described arrangements of electric connection and described sheet metal form respectively two electrodes of described piezoelectric patches.
As a kind of preferred technical scheme, described arrangements of electric connection is flexible circuit board.
As a kind of preferred technical scheme, described vibrating diaphragm comprises pars intermedia and edge part; Described driver plate is corresponding is combined with the pars intermedia of described vibrating diaphragm.
As a kind of preferred technical scheme, described piezoelectric speaker is square structure.
As a kind of preferred technical scheme, described strutting piece extends towards the driver plate body interior, and described piezoelectric patches correspondence is arranged on described strutting piece, and the end of described strutting piece and described support are fixed.
The utility model piezoelectric speaker, a plurality of independent support part homogeneous ends are fixed on shell, the other end is connected with described support, adopt a plurality of independent support parts to be connected with support, having transmitted better piezoelectric patches is subjected to external voltage to change the vibration that produces, can effectively regulate the resonance frequency of speaker unit, improve the speaker unit acoustical behavior.
Description of drawings
Fig. 1 is the explosive view of the utility model piezoelectric speaker.
Fig. 2 is the utility model piezoelectric speaker cutaway view.
Fig. 3 is the improvement project schematic diagram of the utility model piezoelectric speaker.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model piezoelectric speaker concrete structure in detail.
As depicted in figs. 1 and 2, the utility model piezoelectric speaker comprises shell, and shell forms the external frame of this piezoelectric speaker, and this implementation process housing comprises the first shell 11 and second housing 12, is provided with phonate hole 13 on shell; Audible segment, described audible segment comprise the vibrating diaphragm 2 that corresponding phonate hole 13 arranges; Running part, described running part comprise that support 7 reaches and the driver plate 3 of vibrating diaphragm 2 away from the phonate hole 13 1 airtight combinations of side, vibrating diaphragm 2, driver plate 3 and support 7 combination successively; Oscillating component comprises strutting piece 6 and is electrically connected to the piezoelectric patches 4 of external circuit that strutting piece 6 be a plurality of and independent setting, and piezoelectric patches 4 correspondences are arranged on described strutting piece 6; Strutting piece 6 is hung on the inside of described second housing 12, and the one end is fixed on described second housing 12, and the other end is fixed on support 7.
When external circuit alived, piezoelectric patches 4 produced deformation with the external circuit change in voltage, drove strutting piece 6 vibrations, and strutting piece 6 is by support 7 and driver plate 3 combinations, and vibration conducts to vibrating diaphragm 2 by driver plate 3, drives vibrating diaphragm 2 vibration soundings.
The piezoelectric speaker of this structure, simple in structure, volume is little, and cost is low, and electro-acoustic conversion efficiency is high; Owing to being provided with a plurality of independently strutting pieces 6, an end of strutting piece 6 is fixed on shell simultaneously, and the other end is fixed on support 7, can reduce its resonance frequency, improves acoustical behavior.
In addition, in this implementation process, preferred embodiment is, strutting piece 6 is sheet metal structure, and the strutting piece of sheet metal structure can provide stronger support for oscillating component and running part, and the strutting piece of a sheet metal structure circuit can doublely doing piezoelectric patches 4 uses in addition; Be provided with arrangements of electric connection 5 between piezoelectric patches 4 and external circuit, arrangements of electric connection 5 can be FPCB, so that the circuit design of piezoelectric speaker; In this implementation process, vibrating diaphragm 2 comprises edge part 21 and pars intermedia 22, and wherein pars intermedia 22 is planar structure, the driver plate of driver plate 3 preferred rigid structures, and 22 settings of corresponding pars intermedia, and this structure is beneficial to the vibration balancing of piezoelectric speaker; In addition, the piezoelectric speaker that the utility model relates to is square structure, and the piezoelectric speaker of square structure can reduce loud speaker at terminal electronic component installing space; Fig. 3 is a kind of improvement project of the utility model piezoelectric speaker, and as shown in Figure 3, in this improvement project, strutting piece 6 and piezoelectric patches 4 extend, and support 7 is arranged on the end of strutting piece 6.This improvement project, the length that increases in admissible design space due to the size of piezoelectric patches 4 and strutting piece 6, support 7 is arranged on the end of strutting piece 6 simultaneously, further strengthened the actuating force of oscillating component, and then in the situation that the piezoelectric speaker size is certain, provide more high-power output; This improvement project can design according to different design requirements the length of strutting piece 6.
these are only the utility model case study on implementation, be not limited to the utility model, in the utility model, piezoelectric speaker also can be prototype or racetrack, vibrating diaphragm also can be other structures such as round or racetrack, the pars intermedia of vibrating diaphragm can be plane or ball roof construction, perhaps pars intermedia is engraved structure, directly by driver plate and edge part Seal Design, the neither enforcement that affects the invention, in every case the equivalence done according to the utility model institute disclosure of those of ordinary skills is modified or changes, all should include in the protection range of putting down in writing in claims.
Claims (6)
1. piezoelectric speaker comprises: shell, form the external frame of described piezoelectric speaker, and be provided with phonate hole on described shell; It is characterized in that: also comprise audible segment, described audible segment comprises the vibrating diaphragm that corresponding described phonate hole arranges; Running part, described running part comprise that support reaches and the driver plate of described vibrating diaphragm away from the described phonate hole one airtight combination of side, described vibrating diaphragm, driver plate and the combination successively of described support; Oscillating component comprises the piezoelectric patches and a plurality of independent strutting piece that arranges that are electrically connected to external circuit, and described piezoelectric patches correspondence is arranged on described strutting piece; Described strutting piece is hung on the inside of described shell, and the one end is fixed on described shell, and the other end is fixed on described support.
2. piezoelectric speaker according to claim 1, is characterized in that: be provided with arrangements of electric connection between described piezoelectric patches and described external circuit; Described strutting piece is sheet metal, and described arrangements of electric connection and described sheet metal form respectively two electrodes of described piezoelectric patches.
3. piezoelectric speaker according to claim 2, it is characterized in that: described arrangements of electric connection is flexible circuit board.
4. according to claim 1-3 described piezoelectric speakers of arbitrary claim, it is characterized in that: described vibrating diaphragm comprises pars intermedia and edge part; Described driver plate is corresponding is combined with the pars intermedia of described vibrating diaphragm.
5. piezoelectric speaker according to claim 4, it is characterized in that: described piezoelectric speaker is square structure.
6. according to claim 1-3 described piezoelectric speakers of arbitrary claim is characterized in that: described strutting piece extends towards the driver plate body interior, and described piezoelectric patches correspondence is arranged on described strutting piece, and the end of described strutting piece and described support are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709834 CN203027479U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709834 CN203027479U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027479U true CN203027479U (en) | 2013-06-26 |
Family
ID=48651420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709834 Expired - Lifetime CN203027479U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103067839A (en) * | 2012-12-20 | 2013-04-24 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN103096226A (en) * | 2012-12-20 | 2013-05-08 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN104053103A (en) * | 2014-06-25 | 2014-09-17 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
-
2012
- 2012-12-20 CN CN 201220709834 patent/CN203027479U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103067839A (en) * | 2012-12-20 | 2013-04-24 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN103096226A (en) * | 2012-12-20 | 2013-05-08 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN104053103A (en) * | 2014-06-25 | 2014-09-17 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN104053103B (en) * | 2014-06-25 | 2018-08-28 | 歌尔股份有限公司 | Piezoelectric speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |