CN203027481U - Piezoelectric speaker - Google Patents
Piezoelectric speaker Download PDFInfo
- Publication number
- CN203027481U CN203027481U CN 201220709729 CN201220709729U CN203027481U CN 203027481 U CN203027481 U CN 203027481U CN 201220709729 CN201220709729 CN 201220709729 CN 201220709729 U CN201220709729 U CN 201220709729U CN 203027481 U CN203027481 U CN 203027481U
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- Prior art keywords
- piezoelectric speaker
- piezoelectric
- transmission arm
- shell
- strutting piece
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Abstract
The utility model discloses a piezoelectric speaker. The speaker comprises a shell, an outer frame 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 comprises a vibrating diaphragm arranged corresponding to the speaking holes; the transmission part comprises a transmission arm and a transmission plate, the transmission plate is fixedly combined with the vibrating diaphragm, and the transmission plate is fixedly connected with one end of the transmission art to serve as load; the vibration part comprises supporting parts and piezoelectric plates arranged on the supporting parts, the supporting parts are suspended inside the shell, one end of each supporting part is fixed on the shell, and the other end of each supporting part is fixedly connected with the transmission arm; a cantilever structure is formed in the shell by the supporting parts and the transmission arm; and the piezoelectric plates are electrically connected with an external circuit of the piezoelectric speaker. The piezoelectric speaker can be used for reducing the resonant frequency of the piezoelectric speaker, and improving the acoustic performance of the piezoelectric speaker.
Description
Technical field
The present invention relates to the electroacoustic field, especially relate 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 sound performance.
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, comprise 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 comprises transmission arm and driver plate, described driver plate and described vibrating diaphragm secure bond, described driver plate is fixedly connected with an end of described transmission arm as load; Oscillating component comprises strutting piece and the piezoelectric patches that is arranged on strutting piece, and wherein strutting piece is hung on the inside of described shell, and the one end is that fixedly on described shell, the other end is fixedly connected with described transmission arm; Described strutting piece and transmission arm form cantilever design in described shell; Described piezoelectric patches is electrically connected to the external circuit of described piezoelectric speaker.
As a kind of preferred technical scheme, described piezoelectric speaker is square structure.
As a kind of preferred technical scheme, described strutting piece is along the long axis direction setting of described piezoelectric speaker.
As a kind of preferred technical scheme, described transmission arm is along the short-axis direction setting of described piezoelectric speaker.
As a kind of preferred technical scheme, described support arm and transmission arm are two, and are oppositely arranged.
As a kind of preferred technical scheme, described strutting piece and transmission arm are structure as a whole.
As a kind of preferred technical scheme, be provided with independently arrangements of electric connection between described piezoelectric patches and described external circuit.
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 and described pars intermedia secure bond.
The utility model piezoelectric speaker, produce vibration by the piezoelectric patches that is arranged on strutting piece, drive the vibrating diaphragm vibration through transmission arm and driver plate again, transmission arm and strutting piece form cantilever design in the enclosure simultaneously, can reduce the resonance frequency of piezoelectric speaker, improve the acoustical behavior of piezoelectric speaker.
Description of drawings
Fig. 1 is the utility model piezoelectric speaker explosive view.
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 are the vibrating diaphragm 2 that corresponding phonate hole 13 arranges; Running part comprises transmission arm 42 and driver plate 3, driver plate 3 and vibrating diaphragm 2 secure bond, and driver plate 3 is fixedly connected with an end of transmission arm 42 as load; Oscillating component comprises strutting piece 41 and the piezoelectric patches 5 that is arranged on strutting piece 41, and wherein strutting piece 41 is hung on the inside of described shell, and the one end is that fixedly on shell, the other end is fixedly connected with transmission arm 42; Strutting piece 41 forms cantilever design with transmission arm 42 in described shell; Piezoelectric patches 5 is electrically connected to the external circuit of described piezoelectric speaker.
When external circuit alived, piezoelectric patches 5 produced deformation with the external circuit change in voltage, drove strutting piece 41 vibrations, and strutting piece 41 is by transmission arm 42 and then drive driver plate 3 vibrations, conducts to vibrating diaphragm 2 by driver plate 3, drives vibrating diaphragm 2 vibration soundings.
Owing to having adopted technique scheme, piezoelectric speaker described in the utility model produces vibration by the piezoelectric patches that is arranged on strutting piece, drive the vibrating diaphragm vibration through transmission arm and driver plate again, transmission arm and strutting piece form cantilever design in the enclosure simultaneously, can reduce the resonance frequency of piezoelectric speaker, improve the acoustical behavior of piezoelectric speaker.
In this implementation process, preferred piezoelectric speaker is square structure, the piezoelectric speaker of square structure is except saving installing space, can be so that the structural design of strutting piece and transmission arm, wherein strutting piece is preferably along the square setting of major axis of piezoelectric speaker, transmission arm can increase the installation dimension of piezoelectric patches like this along the square setting of minor axis of piezoelectric speaker; For guaranteeing the whole machine balancing of piezoelectric speaker, strutting piece, transmission arm and piezoelectric patches are two, and are oppositely arranged, and for simplifying production technology, strutting piece and transmission arm be integrative-structure preferably simultaneously; For ease of the circuit design of piezoelectric speaker, between the preferred piezoelectric patches of the utility model and external circuit, independently electrical connector is set simultaneously, preferred electrical connector is FPCB; In addition, vibrating diaphragm preferably comprises pars intermedia 22 and edge part 21, and driver plate and pars intermedia 22 secure bond can guarantee acoustical behavior stable of piezoelectric speaker; Between piezoelectric patches and external circuit, by being electrically connected to by arrangements of electric connection 6 independently, the preferred FPCB of arrangements of electric connection 6 wherein like this can be so that circuit design.
These are only the utility model case study on implementation, be not limited to the utility model, as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection range of putting down in writing in claims.
Claims (9)
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 comprises transmission arm and driver plate, described driver plate and described vibrating diaphragm secure bond, described driver plate is fixedly connected with an end of described transmission arm as load; Oscillating component comprises strutting piece and the piezoelectric patches that is arranged on strutting piece, and wherein strutting piece is hung on the inside of described shell, and the one end is that fixedly on described shell, the other end is fixedly connected with described transmission arm; Described strutting piece and transmission arm form cantilever design in described shell; Described piezoelectric patches is electrically connected to the external circuit of described piezoelectric speaker.
2. piezoelectric speaker according to claim 1, it is characterized in that: described piezoelectric speaker is square structure.
3. piezoelectric speaker according to claim 2, it is characterized in that: described strutting piece is along the long axis direction setting of described piezoelectric speaker.
4. piezoelectric speaker according to claim 3, it is characterized in that: described transmission arm is along the short-axis direction setting of described piezoelectric speaker.
5. according to claim 1-4 described piezoelectric speakers of arbitrary claim, it is characterized in that: described strutting piece and transmission arm are two, and are oppositely arranged.
6. piezoelectric speaker according to claim 5, it is characterized in that: described strutting piece and transmission arm are structure as a whole.
7. piezoelectric speaker according to claim 6, is characterized in that: be provided with independently arrangements of electric connection between described piezoelectric patches and described external circuit.
8. piezoelectric speaker according to claim 7, it is characterized in that: described arrangements of electric connection is flexible circuit board.
9. piezoelectric speaker according to claim 1, it is characterized in that: described vibrating diaphragm comprises pars intermedia and edge part, described driver plate and described pars intermedia secure bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709729 CN203027481U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709729 CN203027481U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027481U true CN203027481U (en) | 2013-06-26 |
Family
ID=48651422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709729 Expired - Lifetime CN203027481U (en) | 2012-12-20 | 2012-12-20 | Piezoelectric speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203027481U (en) |
Cited By (5)
| 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 |
| CN111885468A (en) * | 2020-07-09 | 2020-11-03 | 诺思(天津)微系统有限责任公司 | MEMS piezoelectric speaker |
| CN112261560A (en) * | 2020-09-28 | 2021-01-22 | 瑞声科技（南京）有限公司 | Sound production device and electronic equipment |
| WO2022022561A1 (en) * | 2020-07-31 | 2022-02-03 | 华为技术有限公司 | Piezoelectric type electroacoustic device and electronic apparatus |
-
2012
- 2012-12-20 CN CN 201220709729 patent/CN203027481U/en not_active Expired - Lifetime
Cited By (9)
| 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 |
| CN111885468A (en) * | 2020-07-09 | 2020-11-03 | 诺思(天津)微系统有限责任公司 | MEMS piezoelectric speaker |
| CN111885468B (en) * | 2020-07-09 | 2021-12-24 | 诺思(天津)微系统有限责任公司 | MEMS piezoelectric speaker |
| WO2022022561A1 (en) * | 2020-07-31 | 2022-02-03 | 华为技术有限公司 | Piezoelectric type electroacoustic device and electronic apparatus |
| CN114067773A (en) * | 2020-07-31 | 2022-02-18 | 华为技术有限公司 | Piezoelectric electroacoustic device and electronic apparatus |
| CN114067773B (en) * | 2020-07-31 | 2024-01-05 | 华为技术有限公司 | Piezoelectric electroacoustic device and electronic device |
| CN112261560A (en) * | 2020-09-28 | 2021-01-22 | 瑞声科技（南京）有限公司 | Sound production device and electronic equipment |
| CN112261560B (en) * | 2020-09-28 | 2022-03-25 | 瑞声科技（南京）有限公司 | Sound production device and electronic equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |