CN104811880A - Piezoelectric speaker - Google Patents
Piezoelectric speaker Download PDFInfo
- Publication number
- CN104811880A CN104811880A CN201510182237.0A CN201510182237A CN104811880A CN 104811880 A CN104811880 A CN 104811880A CN 201510182237 A CN201510182237 A CN 201510182237A CN 104811880 A CN104811880 A CN 104811880A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- piezoelectric speaker
- antenna traces
- speaker according
- vibrating diaphragm
- 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
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention discloses a piezoelectric speaker. The piezoelectric speaker comprises a conductive terminal, a frame, a diaphragm fixed to the frame, and a piezoelectric piece fixed to the diaphragm. The surface of the piezoelectric piece is provided with an antenna circuit. The piezoelectric piece and the antenna circuit are electrically connected to the conductive terminal respectively. According to the piezoelectric speaker, the surface of the piezoelectric piece is provided with the antenna circuit, the antenna unit and the piezoelectric speaker are arranged integrally to achieve an antenna function and a speaker function at the same time, and the thickness of the piezoelectric speaker is not increased for facilitating thinness design and integration design of products.
Description
Technical field
The present invention relates to electroacoustic field, particularly relate to a kind of multifunction piezoelectric actuator loud speaker.
Background technology
Along with the development of science and technology, portable electron device gets more and more people's extensive concerning, and speaker unit, as the main phonation unit of portable electronic terminal, directly affects the result of use of portable electron device.
Along with portable electron device is more and more thinner, the thickness of speaker unit more and more becomes the emphasis of industry concern.Meanwhile, in order to be conducive to the slimming design of portable electron device, the Integration Design of its internal electrical components becomes designer trends.How a kind of slimming design is provided, loud speaker that integrated level is high becomes research staff's problems faced.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of slimming design, the much higher function piezoelectric speaker of integrated level.
To achieve these goals, the present invention is by the following technical solutions:
A kind of piezoelectric speaker, comprise conducting terminal, framework, the vibrating diaphragm fixed with described framework and the piezoelectric patches being fixed on described vibrating diaphragm, it is characterized in that: described piezoelectric patches surface is provided with antenna traces, and described piezoelectric patches is electrically connected with described conducting terminal respectively with described antenna traces.
As the preferred technical scheme of one, the corresponding described piezoelectric patches of described conducting terminal and described antenna traces are respectively arranged with pad, and described piezoelectric patches is electrically connected with described conducting terminal by pad with described antenna traces.
As the preferred technical scheme of one, described antenna traces is conductive metal lines.
As one preferred technical scheme further, described antenna traces is silver, copper or electrical conductivity alloy.
As one preferred technical scheme further, described antenna traces is arranged at described piezoelectric patches surface by laser direct forming.
As the preferred technical scheme of one, described framework comprises protecgulum and back cover, and described protecgulum is provided with phonate hole.
As the preferred technical scheme of one, described vibrating diaphragm and described piezoelectric patches are connected and fixed by gasket ring.
As one preferred technical scheme further, described gasket ring is PEN material.
As the preferred technical scheme of one, described vibrating diaphragm is macromolecular material vibrating diaphragm.
As the preferred technical scheme of one, described conducting terminal is flexible circuit board.
Piezoelectric speaker of the present invention, antenna traces is set on piezoelectric patches surface, antenna assembly and piezoelectric speaker are wholely set, realize loudspeaker function and antenna function simultaneously, do not increase piezoelectric speaker thickness, be conducive to slimming design and the Integration Design of product.
Accompanying drawing explanation
Fig. 1 is piezoelectric speaker exploded view of the present invention;
Fig. 2 is for piezoelectric speaker piezoelectric patches and wiring board described in Fig. 1 are in conjunction with schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, describe content of the present invention in detail:
As shown in Figures 1 and 2, piezoelectric speaker of the present invention, comprises framework, the vibrating diaphragm 2 fixed with framework and the piezoelectric patches 3 with vibrating diaphragm 2 secure bond, and framework comprises protecgulum 11 and back cover 12, and vibrating diaphragm 2 collecting is fixed between protecgulum 11 and back cover 12.Piezoelectric speaker of the present invention also comprises conducting terminal 5, and piezoelectric patches 3 is electrically connected with conducting terminal 5.Piezoelectric patches 3 and external circuit are electrically coupled by conducting terminal 5, and external drive signal enters into piezoelectric patches 3 by conducting terminal 5, and piezoelectric patches 3 produces inverse piezoelectric effect and vibrates, and drive vibrating diaphragm 2 to vibrate, and air sounding is instigated in vibrating diaphragm 2 vibration.
As shown in Figure 2, piezoelectric patches 3 surface of piezoelectric speaker of the present invention is provided with antenna traces 6, and antenna traces 6 is also electrically connected with conducting terminal 5.Be arranged at the antenna traces 6 on piezoelectric patches 3 surface, make piezoelectric speaker of the present invention be integrated with antenna function, be not provided with other metal materials in piezoelectric speaker and without magnetic interference, antenna traces 6 favorable working performance.Further, be arranged at the antenna traces 6 on piezoelectric patches 3 surface, additionally do not take up room, do not increase the space of piezoelectric speaker, be conducive to the slimming design of product, therefore, piezoelectric speaker of the present invention has slimming and designs, the advantage that integrated level is high.
As shown in Figure 2, on conducting terminal 5, corresponding piezoelectric patches 3 is provided with the first pad 51, respective antenna circuit 6 is provided with the second pad 52, piezoelectric patches 3 and antenna traces 6 are respectively by independently pad and conducting terminal 5 are electrically coupled, be electrically connected with external circuit respectively by conducting terminal 5 again, therefore, piezoelectric patches 3 and antenna traces 6 can separate work.
Preferred as one, antenna traces 6 is conductive metal lines, in actual applications, the materials such as silver, copper or electrical conductivity alloy can be adopted as antenna traces.Can pass through LDS (laser direct forming) is arranged on piezoelectric patches 3 by antenna traces 6, also can adopt other modes, all not affect piezoelectric speaker advantage applies of the present invention.
As shown in Figure 1, the piezoelectric speaker of the present embodiment, protecgulum 11 is provided with the phonate hole for sound outgoing.
As shown in Figure 1, be provided with gasket ring 4 between piezoelectric patches 3 and vibrating diaphragm 2, piezoelectric patches 3 is connected and fixed by gasket ring 4 and vibrating diaphragm 2, and gasket ring 4 can improve the consistency that vibrating diaphragm 2 vibrates, and improves piezoelectric speaker acoustical behavior.As a kind of preferred version, gasket ring 4 can be PEN material.
In actual applications, vibrating diaphragm 2 can adopt macromolecular material vibrating diaphragm.Conducting terminal can be flexible circuit board.All can embody piezoelectric speaker advantage of the present invention.
These are only the invention process case, be not limited to the present invention, as long as those of ordinary skill in the art modify or change according to the equivalence that disclosed content is done, all should include in the protection range recorded in claims.
Claims (10)
1. a piezoelectric speaker, comprise conducting terminal, framework, the vibrating diaphragm fixed with described framework and the piezoelectric patches being fixed on described vibrating diaphragm, it is characterized in that: described piezoelectric patches surface is provided with antenna traces, and described piezoelectric patches is electrically connected with described conducting terminal respectively with described antenna traces.
2. piezoelectric speaker according to claim 1, is characterized in that: the corresponding described piezoelectric patches of described conducting terminal and described antenna traces are respectively arranged with pad, and described piezoelectric patches is electrically connected with described conducting terminal by pad with described antenna traces.
3. piezoelectric speaker according to claim 1, is characterized in that: described antenna traces is conductive metal lines.
4. piezoelectric speaker according to claim 3, is characterized in that: described antenna traces is silver, copper or electrical conductivity alloy.
5. the piezoelectric speaker according to claim 1 or 3 or 4, is characterized in that: it is characterized in that: described antenna traces is arranged at described piezoelectric patches surface by laser direct forming.
6. piezoelectric speaker according to claim 1, is characterized in that: described framework comprises protecgulum and back cover, and described protecgulum is provided with phonate hole.
7. piezoelectric speaker according to claim 1, is characterized in that: described vibrating diaphragm and described piezoelectric patches are connected and fixed by gasket ring.
8. piezoelectric speaker according to claim 7, is characterized in that: described gasket ring is PEN material.
9. piezoelectric speaker according to claim 1, is characterized in that: described vibrating diaphragm is macromolecular material vibrating diaphragm.
10. piezoelectric speaker according to claim 1, is characterized in that: described conducting terminal is flexible circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182237.0A CN104811880A (en) | 2015-04-16 | 2015-04-16 | Piezoelectric speaker |
| PCT/CN2015/094537 WO2016165320A1 (en) | 2015-04-16 | 2015-11-13 | Piezoelectric speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510182237.0A CN104811880A (en) | 2015-04-16 | 2015-04-16 | Piezoelectric speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104811880A true CN104811880A (en) | 2015-07-29 |
Family
ID=53696288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510182237.0A Pending CN104811880A (en) | 2015-04-16 | 2015-04-16 | Piezoelectric speaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104811880A (en) |
| WO (1) | WO2016165320A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165320A1 (en) * | 2015-04-16 | 2016-10-20 | 歌尔声学股份有限公司 | Piezoelectric speaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI118402B (en) * | 2001-06-29 | 2007-10-31 | Pulse Finland Oy | Integrated radio telephone construction |
| US9106205B2 (en) * | 2010-12-29 | 2015-08-11 | University Of Central Florida Research Foundation, Inc. | Wireless SAW sensors having integrated antennas |
| CN203279168U (en) * | 2013-05-03 | 2013-11-06 | 瑞声声学科技(常州)有限公司 | Piezoelectric loudspeaker |
| CN104811880A (en) * | 2015-04-16 | 2015-07-29 | 歌尔声学股份有限公司 | Piezoelectric speaker |
-
2015
- 2015-04-16 CN CN201510182237.0A patent/CN104811880A/en active Pending
- 2015-11-13 WO PCT/CN2015/094537 patent/WO2016165320A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016165320A1 (en) * | 2015-04-16 | 2016-10-20 | 歌尔声学股份有限公司 | Piezoelectric speaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016165320A1 (en) | 2016-10-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
|
| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |