CN104936111A - Piezoelectric loudspeaker - Google Patents
Piezoelectric loudspeaker Download PDFInfo
- Publication number
- CN104936111A CN104936111A CN201510312866.0A CN201510312866A CN104936111A CN 104936111 A CN104936111 A CN 104936111A CN 201510312866 A CN201510312866 A CN 201510312866A CN 104936111 A CN104936111 A CN 104936111A
- Authority
- CN
- China
- Prior art keywords
- piezoelectric
- piezoelectric patches
- help circle
- piezoelectric speaker
- listening help
- 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
- 238000005530 etching Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PCEXQRKSUSSDFT-UHFFFAOYSA-N [Mn].[Mo] Chemical compound [Mn].[Mo] PCEXQRKSUSSDFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 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
Abstract
The invention discloses a piezoelectric loudspeaker, comprising a conductive terminal, a framework, a vibrating diaphragm fixed with the framework and a piezoelectric sheet fixed with the vibrating diaphragm. Furthermore, the piezoelectric loudspeaker also comprises a hearing-aid voice coil which is a planar voice coil; the planar hearing-aid voice coil is arranged on the surface of the piezoelectric sheet through etching; and the piezoelectric sheet and the hearing-aid voice coil are electrically connected to the conductive terminal. In the invention, that the hearing-aid voice coil is etched on the piezoelectric sheet, which does not occupy the internal space of the piezoelectric loudspeaker, does not increase the thickness of the piezoelectric loudspeaker, benefits the thin-type design of the product, reduces the production difficulty in the process of assembling the piezoelectric loudspeaker and simplifies the production technology. The hearing-aid voice coil does not affect the performance of the piezoelectric loudspeaker and benefits the improvement of the product performance. The piezoelectric loudspeaker has advantages of good thin type design, simple technology and good performance.
Description
Technical field
The present invention relates to electroacoustic field, particularly relate to a kind of piezoelectric 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.Piezoelectric speaker with its thickness thin and more and more become industry pay close attention to emphasis.In order to improve the effect of piezoelectric speaker, listening help circle is provided with in piezoelectric speaker, the piezoelectric speaker with listening help circle of prior art, need to place listening help circle separately, complex process, listening help circle takies piezoelectric speaker inner space, affects the performance of piezoelectric speaker, and improves production cost.
Therefore, be necessary to propose a kind of improvement, to overcome the defect that prior art arranges the piezoelectric speaker of listening help circle.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of slimming and designs, and technique is simple, the piezoelectric speaker that performance is good.
To achieve these goals, piezoelectric speaker of 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, and: described piezoelectric speaker also comprises listening help circle, described listening help circle is planar voice-coil, and described plane listening help circle etching is arranged at described piezoelectric patches surface; Described piezoelectric patches is electrically connected with described conducting terminal respectively with described listening help circle.
As the preferred technical scheme of one, the corresponding described piezoelectric patches of described conducting terminal and described listening help circle are respectively arranged with pad, and described piezoelectric patches is electrically connected with described conducting terminal by described pad with described listening help circle.
As the preferred technical scheme of one, described piezoelectric patches is provided with electrode, and described piezoelectric patches electrode is electrically connected with described conducting terminal.As further preferred, described listening help circle is dodged described electrode and is arranged.
As the preferred technical scheme of one, described piezoelectric patches comprises two parts piezoelectric patches, and described two parts piezoelectric patches is arranged at the both sides of described vibrating diaphragm respectively, and described listening help circle is arranged in an arbitrary part for described two parts piezoelectric patches.
As the preferred version of above scheme, described listening help circle can be any one in silver, palladium, nickel, molybdenum-manganese alloy.
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 further preferred technical scheme, described gasket ring is PEN material.
As the preferred technical scheme of one, described conducting terminal is flexible circuit board.
Piezoelectric speaker of the present invention, listening help circle is planar voice-coil, and listening help circle etching is arranged at the surface of piezoelectric patches, listening help circle and piezoelectric patches are wholely set, listening help circle does not take piezoelectric speaker inner space, does not increase piezoelectric speaker thickness, is conducive to the slimming design of product.Further, listening help circle is etched on piezoelectric patches, reduces production difficulty during piezoelectric speaker assembling, simplifies production technology; Listening help circle can not have an impact to piezoelectric speaker performance, is conducive to improving product performance.Therefore, piezoelectric speaker of the present invention has slimming and designs, and technique is simple, the advantage that performance is good.
Accompanying drawing explanation
Fig. 1 is piezoelectric speaker exploded view of the present invention;
Fig. 2 for the piezoelectric patches of piezoelectric speaker shown in Fig. 1, listening help circle with conducting terminal 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 speaker of the present invention also comprises listening help circle 6, and listening help circle 6 is planar voice-coil, and etching is arranged at the surface of piezoelectric patches 3, listening help circle 6 improve piezoelectric speaker and hearing aids with the use of time performance, improve the popularity of piezoelectric speaker application.Be arranged at the plane listening help circle 6 on piezoelectric patches 3 surface, avoid listening help circle taking piezoelectric speaker inner space, be conducive to the slimming design of piezoelectric speaker, simultaneously, in piezoelectric speaker assembling process, listening help circle need not be placed separately, simplify production technology, listening help circle can not have an impact to piezoelectric speaker performance, is conducive to improving piezoelectric speaker performance.
As shown in Figure 2, on conducting terminal 5, corresponding piezoelectric patches 3 is provided with the first pad 51, and corresponding listening help circle 6 is provided with the second pad 52, and piezoelectric patches 3 and listening help circle 6 are electrically connected with conducting terminal 5 respectively by independently pad, mutually can not disturb, be conducive to improving product performance.
The piezoelectric speaker of the present embodiment, piezoelectric patches 3 is provided with electrode, and electrode is electrically connected with conducting terminal 5.The electrode that listening help circle 6 dodges piezoelectric patches 3 is arranged, and to ensure that listening help circle 6 does not interfere with each other mutually with the electrode of piezoelectric patches 3, enhances product performance.
In actual applications, piezoelectric patches 3 also can be set to two panels, and two panels piezoelectric patches is arranged at the both sides of vibrating diaphragm 2 respectively, to improve the acoustical behavior of piezoelectric speaker, listening help circle 6 can be arranged on arbitrary piezoelectric patches, does not all affect the advantage applies of piezoelectric speaker of the present invention.
In actual applications, listening help circle can be any one in silver, palladium, nickel, molybdenum-manganese alloy, also can be the metal or alloy of other materials, guarantees that the listening help circle conduction of plane is unobstructed, plays hearing aid effect, enhance product performance and Consumer's Experience.
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.
Piezoelectric speaker of the present invention, listening help circle is planar voice-coil, and listening help circle etching is arranged at the surface of piezoelectric patches, listening help circle and piezoelectric patches are wholely set, listening help circle does not take piezoelectric speaker inner space, does not increase piezoelectric speaker thickness, is conducive to the slimming design of product.Further, listening help circle is etched on piezoelectric patches, reduces production difficulty during piezoelectric speaker assembling, simplifies production technology; Listening help circle can not have an impact to piezoelectric speaker performance, is conducive to improving product performance.Therefore, piezoelectric speaker of the present invention has slimming and designs, and technique is simple, the advantage that performance is good.
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 speaker also comprises listening help circle, described listening help circle is planar voice-coil, and described plane listening help circle etching is arranged at described piezoelectric patches surface; Described piezoelectric patches is electrically connected with described conducting terminal respectively with described listening help circle.
2. piezoelectric speaker according to claim 1, is characterized in that: the corresponding described piezoelectric patches of described conducting terminal and described listening help circle are respectively arranged with pad, and described piezoelectric patches is electrically connected with described conducting terminal by described pad with described listening help circle.
3. piezoelectric speaker according to claim 1, is characterized in that: described piezoelectric patches is provided with electrode, and described piezoelectric patches electrode is electrically connected with described conducting terminal.
4. piezoelectric speaker according to claim 3, is characterized in that: described listening help circle is dodged described electrode and arranged.
5. piezoelectric speaker according to claim 1, it is characterized in that: described piezoelectric patches comprises two parts piezoelectric patches, described two parts piezoelectric patches is arranged at the both sides of described vibrating diaphragm respectively, and described listening help circle is arranged in an arbitrary part for described two parts piezoelectric patches.
6. the piezoelectric speaker according to the arbitrary claim of claim 1 to 5, is characterized in that: described listening help circle can be any one in silver, palladium, nickel, molybdenum-manganese alloy.
7. 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.
8. piezoelectric speaker according to claim 1, is characterized in that: described vibrating diaphragm and described piezoelectric patches are connected and fixed by gasket ring.
9. piezoelectric speaker according to claim 8, is characterized in that: described gasket ring is PEN material.
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 |
|---|---|---|---|
| CN201510312866.0A CN104936111A (en) | 2015-06-09 | 2015-06-09 | Piezoelectric loudspeaker |
| PCT/CN2015/094543 WO2016197536A1 (en) | 2015-06-09 | 2015-11-13 | Piezoelectric loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510312866.0A CN104936111A (en) | 2015-06-09 | 2015-06-09 | Piezoelectric loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104936111A true CN104936111A (en) | 2015-09-23 |
Family
ID=54123021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510312866.0A Pending CN104936111A (en) | 2015-06-09 | 2015-06-09 | Piezoelectric loudspeaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104936111A (en) |
| WO (1) | WO2016197536A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197536A1 (en) * | 2015-06-09 | 2016-12-15 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN107566967A (en) * | 2017-09-18 | 2018-01-09 | 东莞市赞歌声学科技有限公司 | A kind of Loudspeaker diaphragm with conducting function |
| US11785393B2 (en) | 2019-09-24 | 2023-10-10 | Samsung Electronics Co., Ltd. | Electronic device including speaker module |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7418106B2 (en) * | 2004-06-21 | 2008-08-26 | Nokia Corporation | Apparatus and methods for increasing magnetic field in an audio device |
| JP2011114844A (en) * | 2009-11-30 | 2011-06-09 | Seiko Instruments Inc | Method of manufacturing piezoelectric vibrating reed and piezoelectric vibrating reed, piezoelectric vibrator, oscillator, electronic apparatus, and radio-controlled timepiece |
| US9084051B2 (en) * | 2011-02-18 | 2015-07-14 | The Rockefeller University | Unidirectional mechanical amplification in a microphone |
| CN103248990A (en) * | 2013-04-12 | 2013-08-14 | 广东欧珀移动通信有限公司 | Piezoelectric ceramic speaker and NFC antenna integrated device |
| CN104936111A (en) * | 2015-06-09 | 2015-09-23 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN204697287U (en) * | 2015-06-09 | 2015-10-07 | 歌尔声学股份有限公司 | Piezoelectric speaker |
-
2015
- 2015-06-09 CN CN201510312866.0A patent/CN104936111A/en active Pending
- 2015-11-13 WO PCT/CN2015/094543 patent/WO2016197536A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197536A1 (en) * | 2015-06-09 | 2016-12-15 | 歌尔声学股份有限公司 | Piezoelectric loudspeaker |
| CN107566967A (en) * | 2017-09-18 | 2018-01-09 | 东莞市赞歌声学科技有限公司 | A kind of Loudspeaker diaphragm with conducting function |
| US11785393B2 (en) | 2019-09-24 | 2023-10-10 | Samsung Electronics Co., Ltd. | Electronic device including speaker module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016197536A1 (en) | 2016-12-15 |
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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. |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |