CN103096226A - Piezoelectric loudspeaker - Google Patents
Piezoelectric loudspeaker Download PDFInfo
- Publication number
- CN103096226A CN103096226A CN2012105580108A CN201210558010A CN103096226A CN 103096226 A CN103096226 A CN 103096226A CN 2012105580108 A CN2012105580108 A CN 2012105580108A CN 201210558010 A CN201210558010 A CN 201210558010A CN 103096226 A CN103096226 A CN 103096226A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric speaker
- piezoelectric
- transmission arm
- strutting piece
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a piezoelectric loudspeaker which comprises an outer shell forming an external framework of the piezoelectric loudspeaker. A sound hole is formed in the outer shell. In addition, the piezoelectric loudspeaker further comprises a sounding part, a transmission part and a vibration part, wherein the sounding part comprises a vibrating diaphragm arranged corresponding to the sound hole, the transmission part comprises a transmission arm and a transmission plate which is fixedly combined with the vibrating diaphragm, the transmission plate is fixedly connected with one end of the transmission arm to be as a load, the vibration part comprises a support piece and a piezoelectric sheet arranged on the support piece which is arranged on the inner portion of the outer shell in a hanging mode, one end of the support piece is fixed on the outer shell, the other end of the support piece is fixedly connected with the transmission arm, a hanging arm structure is formed by the support piece and the transmission arm inside the outer shell, and the piezoelectric sheet is electrically connected to an external circuit of the piezoelectric loudspeaker. The piezoelectric loudspeaker can reduce resonant frequency of the piezoelectric loudspeaker and improve acoustic performance of the piezoelectric loudspeaker.
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.
Summary of the invention
Technical problem to be solved by this invention is to provide the good piezoelectric speaker of a kind of acoustical behavior.
To achieve these goals, the present invention 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.
Piezoelectric speaker of the present invention, produce vibration by the piezoelectric patches that is arranged on strutting piece, then drive the vibrating diaphragm vibration through transmission arm and driver plate, 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 piezoelectric speaker explosive view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe piezoelectric speaker concrete structure of the present invention in detail.
As shown in Figure 1, piezoelectric speaker of the present invention 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 of the present invention 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 present invention 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 invention process case, be not limited to the present invention, as long as the equivalence that those of ordinary skills do according to disclosed content 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 |
|---|---|---|---|
| CN2012105580108A CN103096226A (en) | 2012-12-20 | 2012-12-20 | Piezoelectric loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105580108A CN103096226A (en) | 2012-12-20 | 2012-12-20 | Piezoelectric loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103096226A true CN103096226A (en) | 2013-05-08 |
Family
ID=48208264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105580108A Pending CN103096226A (en) | 2012-12-20 | 2012-12-20 | Piezoelectric loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103096226A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657624A (en) * | 2014-12-02 | 2016-06-08 | 太阳诱电株式会社 | Electroacoustic transducer |
| CN107820184A (en) * | 2017-11-28 | 2018-03-20 | 歌尔股份有限公司 | A kind of piezoelectricity sound-producing device |
| WO2022000707A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022007050A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production apparatus and electronic device having same |
| WO2022006816A1 (en) * | 2020-07-09 | 2022-01-13 | 诺思(天津)微系统有限责任公司 | Mems piezoelectric loudspeaker |
| WO2022143503A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Loudspeaker and electronic apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10108297A (en) * | 1996-09-27 | 1998-04-24 | Taiyo Yuden Co Ltd | Piezoelectric sounding body |
| JP2000253492A (en) * | 1999-03-01 | 2000-09-14 | Shinsei Kk | Loudspeaker using piezoelectric vibration body |
| CN202310094U (en) * | 2011-09-27 | 2012-07-04 | 清华大学 | Piezoelectric loudspeaker of piezoelectric cantilever beam |
| CN203027479U (en) * | 2012-12-20 | 2013-06-26 | 歌尔声学股份有限公司 | Piezoelectric speaker |
| CN203027481U (en) * | 2012-12-20 | 2013-06-26 | 歌尔声学股份有限公司 | Piezoelectric speaker |
-
2012
- 2012-12-20 CN CN2012105580108A patent/CN103096226A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10108297A (en) * | 1996-09-27 | 1998-04-24 | Taiyo Yuden Co Ltd | Piezoelectric sounding body |
| JP2000253492A (en) * | 1999-03-01 | 2000-09-14 | Shinsei Kk | Loudspeaker using piezoelectric vibration body |
| CN202310094U (en) * | 2011-09-27 | 2012-07-04 | 清华大学 | Piezoelectric loudspeaker of piezoelectric cantilever beam |
| CN203027479U (en) * | 2012-12-20 | 2013-06-26 | 歌尔声学股份有限公司 | Piezoelectric speaker |
| CN203027481U (en) * | 2012-12-20 | 2013-06-26 | 歌尔声学股份有限公司 | Piezoelectric speaker |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657624A (en) * | 2014-12-02 | 2016-06-08 | 太阳诱电株式会社 | Electroacoustic transducer |
| CN105657624B (en) * | 2014-12-02 | 2019-03-12 | 太阳诱电株式会社 | Electro-acoustic conversion device |
| CN107820184A (en) * | 2017-11-28 | 2018-03-20 | 歌尔股份有限公司 | A kind of piezoelectricity sound-producing device |
| CN107820184B (en) * | 2017-11-28 | 2023-11-28 | 歌尔股份有限公司 | Piezoelectric sounding device |
| WO2022000707A1 (en) * | 2020-06-30 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| WO2022006816A1 (en) * | 2020-07-09 | 2022-01-13 | 诺思(天津)微系统有限责任公司 | Mems piezoelectric loudspeaker |
| WO2022007050A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production apparatus and electronic device having same |
| WO2022143503A1 (en) * | 2020-12-28 | 2022-07-07 | 华为技术有限公司 | Loudspeaker and electronic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103209377B (en) | Multifunction speaker | |
| CN203574855U (en) | Loudspeaker module | |
| CN108566606A (en) | Microphone device and portable terminal | |
| CN105101022A (en) | Vibration sounding apparatus | |
| CN103096226A (en) | Piezoelectric loudspeaker | |
| CN104219607A (en) | Loudspeaker module | |
| CN203027481U (en) | Piezoelectric speaker | |
| CN205510382U (en) | Multi -function device with vibration function and sound producing function | |
| CN103414985B (en) | The suspended structure of Microspeaker | |
| CN203193879U (en) | Vibratory loudspeaker | |
| CN202488692U (en) | Loudspeaker module | |
| CN203027479U (en) | Piezoelectric speaker | |
| CN203708469U (en) | Loudspeaker module | |
| CN203574851U (en) | Loudspeaker module | |
| CN205040024U (en) | Two -way miniature speaker | |
| KR20150024002A (en) | Speaker with acoustically excited panel | |
| CN204887463U (en) | Terminal that vibrates vocal structure and have vocal structure of this vibration | |
| CN203193868U (en) | Multifunctional speaker | |
| CN101227767A (en) | Minitype moving-coil type electro-acoustic conversing device | |
| CN204046809U (en) | Loud speaker module | |
| CN206498529U (en) | Loudspeaker | |
| CN102946581B (en) | Loudspeaker device | |
| CN103067839A (en) | Piezoelectric loudspeaker | |
| CN201878319U (en) | Movable ring type electro-acoustic converter | |
| CN204929245U (en) | Vibration sounding apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130508 |