CN203416413U - Flat plate sounding device - Google Patents
Flat plate sounding device Download PDFInfo
- Publication number
- CN203416413U CN203416413U CN201320438958.XU CN201320438958U CN203416413U CN 203416413 U CN203416413 U CN 203416413U CN 201320438958 U CN201320438958 U CN 201320438958U CN 203416413 U CN203416413 U CN 203416413U
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- Prior art keywords
- vibration area
- piezoelectric vibrator
- principal oscillation
- oscillation region
- flat plate
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Abstract
The utility model provides a flat plate sounding device. The flat plate sounding device comprises a cover plate and a long bar-shaped piezoelectric vibrator; the cover plate includes a master vibration area and a salve vibration area which surrounds the master vibration area, wherein the master vibration area and the slave vibration area are driven by the piezoelectric vibrator so as to emit sound; the vibration direction of the piezoelectric vibrator is perpendicular to the master vibration area; the periphery of the master vibration area is provided with at least one ring of groove that surrounds the master vibration area; the piezoelectric vibrator spans across the master vibration area; and two end portions of the piezoelectric vibrator along a long axis direction are fixed on the salve vibration area. The flat plate sounding device provided by the utility model can be applied to all kinds of electronic devices. The flat plate sounding device is advantageous in easy application and low application cost.
Description
[technical field]
The utility model relates to the communications field, relates in particular to a kind of dull and stereotyped sound-producing device.
[background technology]
Along with the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And among numerous mobile devices, mobile phone is common, the most portable mobile terminal device beyond doubt.At present, the function of mobile phone and various, one of them is high-quality music function, and loud speaker in mobile phone is one of essential condition realizing this high-quality music function.Current mobile phone on the market, generally adopt minisize electromagnetic loud speaker to realize the playing function of music, but the product structure of this kind of structure is complicated, and take interior of mobile phone space, because of minisize electromagnetic loud speaker self, need certain height simultaneously, thereby seriously limited the slimming development of the mobile terminals such as mobile phone.
Development along with social science and technology, utilize the mobile phone of cover plate vocal skill to start to occur, but this mobile phone is all generally the display screen sounding that utilizes mobile phone, because the material of mobile phone screen is more single, general is all frangible glass material, thickness can not arbitrarily regulate, cause the tonequality of the sound that screen sends to be difficult to promote, simultaneously, this technology is applied on screen to also more complicated, piezoelectric vibrator and screen need to be fixed, when assembling, easily damage glass screen, cause the significantly raising of production cost, therefore restricted the development of current dull and stereotyped vocal skill.
So need to provide a kind of novel dull and stereotyped sound-producing device in order to address the above problem.
[utility model content]
The purpose of this utility model is to provide a kind of dull and stereotyped sound-producing device, and it has solved existing dull and stereotyped vocal skill and has utilized display screen to do oscillating plate, causes assembling difficulty, and the high problem of the frangible production cost causing of glass screen.
A kind of dull and stereotyped sound-producing device, it comprises cover plate and strip piezoelectric vibrator, described cover plate comprise by piezoelectric vibrator drive to produce vibration sounding principal oscillation region and around described principal oscillation region from vibration area, the direction of vibration of described piezoelectric vibrator is perpendicular to described principal oscillation region, the periphery in described principal oscillation region is provided with at least one ring around the groove in described principal oscillation region, and this piezoelectric vibrator is fixed on from vibration area across two ends on described principal oscillation region division and its long axis direction.
Preferably, boss is extended respectively in the position of described two ends from the corresponding piezoelectric vibrator of vibration area, and described end is immobilizated in this boss.
The utility model provides a kind of dull and stereotyped sound-producing device, and it can be applied in various electronic equipments, not only easily application, and also application cost is cheap.
[accompanying drawing explanation]
Fig. 1 is the exploded view that the utility model embodiment applies the cell phone rear cover of dull and stereotyped sound-producing device;
Fig. 2 is the cutaway view of cell phone rear cover shown in Fig. 1;
Fig. 3 is the enlarged drawing of the local A of cutaway view shown in Fig. 2.
[embodiment]
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
For clear detailed description the utility model, below embodiment the utility model being applied on cell phone rear cover for is described.
As depicted in figs. 1 and 2, a kind of cell phone rear cover being applied on conventional mobile phone, this cell phone rear cover has been applied the dull and stereotyped sound-producing device that the utility model provides, described dull and stereotyped sound-producing device comprises a cover plate 1 and strip piezoelectric vibrator 2, the direction of vibration of described piezoelectric vibrator 2 is perpendicular to described cover plate 1, described cover plate 1 comprise for by described piezoelectric vibrator 2, driven with the principal oscillation region 10 of vibration sounding and around described oscillating plate 10 from vibration area 11, wherein, the periphery in described principal oscillation region 10 is provided with at least one ring around the groove 100 in described principal oscillation region 10, as shown in Figure 3.
This piezoelectric vibrator 2 is fixed on from vibration area 11 across two ends 20 on 10 settings of described principal oscillation region and its long axis direction, described piezoelectric vibrator 2 also comprises the vibration section 21 that is positioned at its centre, principal oscillation region 10 is fixed in described vibration section 21, it can be directly fixed on the central authorities in described principal oscillation region 10, also can connect vibration section 21 and principal oscillation region 10 by other vibration transmission member.
Two boss 110 are extended respectively in the position of described two ends 20 from the corresponding piezoelectric vibrator 2 of vibration area 11, and described end 20 is immobilizated in respectively this boss 110.
The dull and stereotyped sound-producing device that the utility model provides, it not only can be applied on cell phone rear cover, can also be applied in other various electronic equipments, because the material unlike glass display screen of the sheathing material as cell phone rear cover and so on is single frangible, it can adopt different materials to make bonnet as required, especially the dull and stereotyped sound-producing device that the utility model provides, principal oscillation region 10 is for vibration, principal oscillation region 10 with from vibration area 11, be wholely set, only need to the groove 100 of one ring around principal oscillation region 10 be set at principal oscillation region 10 peripheries is the periphery rigidity in adjustable principal oscillation region 10, the reduced thickness of principal oscillation region 10 peripheries, rigidity has diminished, under onesize actuating force, principal oscillation region 10 can produce larger displacement, therefore, can produce the sound that acoustic pressure is higher, in addition, the dull and stereotyped sound-producing device that the utility model provides is not only easily employed, and its application cost is also cheaper.
Above-described is only better embodiment of the present utility model; at this, it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model creation design; can also make improvement, but these all belong to protection range of the present utility model.
Claims (2)
1. a dull and stereotyped sound-producing device, it comprises cover plate and strip piezoelectric vibrator, it is characterized in that, described cover plate comprise by piezoelectric vibrator drive to produce vibration sounding principal oscillation region and around described principal oscillation region from vibration area, the direction of vibration of described piezoelectric vibrator is perpendicular to described principal oscillation region, the periphery in described principal oscillation region is provided with at least one ring around the groove in described principal oscillation region, and this piezoelectric vibrator is fixed on from vibration area across two ends on described principal oscillation region division and its long axis direction.
2. dull and stereotyped sound-producing device as claimed in claim 1, is characterized in that: boss is extended respectively in the position of described two ends from the corresponding piezoelectric vibrator of vibration area, and described end is immobilizated in this boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320438958.XU CN203416413U (en) | 2013-07-22 | 2013-07-22 | Flat plate sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320438958.XU CN203416413U (en) | 2013-07-22 | 2013-07-22 | Flat plate sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203416413U true CN203416413U (en) | 2014-01-29 |
Family
ID=49979267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320438958.XU Expired - Fee Related CN203416413U (en) | 2013-07-22 | 2013-07-22 | Flat plate sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203416413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109032556A (en) * | 2018-07-09 | 2018-12-18 | Oppo广东移动通信有限公司 | Sounding control method, device, electronic device and storage medium |
-
2013
- 2013-07-22 CN CN201320438958.XU patent/CN203416413U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109032556A (en) * | 2018-07-09 | 2018-12-18 | Oppo广东移动通信有限公司 | Sounding control method, device, electronic device and storage medium |
| CN109032556B (en) * | 2018-07-09 | 2021-08-17 | Oppo广东移动通信有限公司 | Sound production control method, sound production control device, electronic device, and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |