CN103686562A - Bi-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer - Google Patents
Bi-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer Download PDFInfo
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- CN103686562A CN103686562A CN201310582322.7A CN201310582322A CN103686562A CN 103686562 A CN103686562 A CN 103686562A CN 201310582322 A CN201310582322 A CN 201310582322A CN 103686562 A CN103686562 A CN 103686562A
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Abstract
The invention discloses a bi-crystal piezoelectric ceramic sound generator structure used for a mobile phone and a tablet computer. Sound-transmitting holes do not need to be arranged on a TP screen or a shell, and the bi-crystal piezoelectric ceramic sound generator structure is great in waterproof and dustproof effect and an incoming call and sound can be clearly heard in a noisy environment. The bi-crystal piezoelectric ceramic sound generator structure comprises the TP screen. A metal thin-film is arranged on the internal side surface of the TP screen. Two ends of the metal thin-film are respectively adhered on the TP screen via insulating blocks in an insulating way. A gap used for vibration of the metal thin-film is arranged between the metal thin-film and the TP screen. Multilayer bi-crystal piezoelectric ceramic sheets are respectively adhered on an upper surface and a lower surface of the metal thin-film. The upper and the lower multilayer bi-crystal piezoelectric ceramic sheets are electrically connected with each other. One of the multilayer bi-crystal piezoelectric ceramic sheets is provided with a flexible circuit board used for transmitting electrical signals to the multilayer bi-crystal piezoelectric ceramic sheets.
Description
Technical field
The present invention relates to the microphone device for mobile phone, panel computer.
Background technology
Microphone device for mobile phone or panel computer comprises receiver and loud speaker at present, receiver is moving coil receiver, loud speaker is coil-moving speaker, receiver and loud speaker are separately arranged on the different parts in mobile phone or panel computer, and offer penetrable sound hole on the TP of corresponding site screen or housing.
The shortcoming that the microphone device of said structure exists is: separately independent receiver and the loud speaker arranging taken cavity space more in mobile phone or panel computer, also need on TP screen or housing, offer penetrable sound hole, offering penetrable sound hole at least needs the expense of 2～3 yuan, production cost is higher, also easily breaks TP screen or housing; And the waterproof and dustproof effect of offering TP after penetrable sound hole screen or housing is poor, in addition, use moving coil receiver and loud speaker under noisy environment, cannot very clearly not to hear incoming call and sound.
Summary of the invention
The technical problem to be solved in the present invention is: provide on a kind of TP screen or housing without opening penetrable sound hole, and waterproof and dustproof is effective, under noisy environment, can clearly not hear the twin crystal piezoelectric ceramic sounder structure for mobile phone, panel computer of incoming call and sound.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme.
For mobile phone, twin crystal piezoelectric ceramic sounder structure in panel computer, comprise TP screen, be characterized in: on the medial surface of TP screen, be provided with metallic film, the two ends of metallic film are attached on TP screen by collets insulating sticky respectively, between metallic film and TP screen, leave the gap for metallic film vibration, upper at metallic film, lower two sides is pasted with respectively multilayer twin crystal piezoelectric ceramic piece, on, lower two multilayer twin crystal piezoelectric ceramic pieces are electrically connected to mutually, the brilliant piezoelectric ceramic piece of promising plurality of layers of double is set on a slice multilayer twin crystal piezoelectric ceramic piece therein and carries the flexible electric circuit board of the signal of telecommunication.
Beneficial effect of the present invention: the shared cavity space of described twin crystal piezoelectric ceramic generator architecture is little, greatly saved installing space valuable in mobile phone or panel computer, and on TP screen or housing without opening penetrable sound hole, saved the punching expense of TP screen or housing, promote the production qualification rate of TP screen or housing, improved the waterproof and dustproof performance of mobile phone or panel computer; And under noisy environment, only need, by TP screen laminating He Buhuo ear, can gem-purely not hear incoming call dialog context and sound.
Accompanying drawing explanation
Fig. 1 is the structural representation of the twin crystal piezoelectric ceramic sounder structure for mobile phone, panel computer of the present invention.
Shown in Figure 1, of the present invention for mobile phone, twin crystal piezoelectric ceramic sounder structure in panel computer, comprise TP screen 2, on the medial surface of TP screen 2, be provided with metallic film 5, the two ends of metallic film 5 are attached on TP screen 2 by collets 1 and 11 insulating stickies respectively, between metallic film 5 and TP screen 2, leave the gap 6 for metallic film 5 vibrations, upper at metallic film 5, lower two sides is pasted with respectively multilayer twin crystal piezoelectric ceramic piece 31 and 3, on, lower two multilayer twin crystal piezoelectric ceramic pieces 31 and 3 are electrically connected to mutually, the brilliant piezoelectric ceramic piece 31 of promising plurality of layers of double and 3 is set on multilayer twin crystal piezoelectric ceramic piece 31 and carries the flexible electric circuit board 4 of the signal of telecommunication.
The operation principle of the twin crystal piezoelectric ceramic sounder structure for mobile phone, panel computer of the present invention is as follows: when feeding multilayer twin crystal piezoelectric ceramic piece 31 and 3 audio electrical signal by flexible electric circuit board 4, multilayer twin crystal piezoelectric ceramic piece 31 and 3 will produce audio frequency vibration, thereby drive metallic film 5 to produce audio frequency vibration, and promote TP screen 2 conduction sound by collets 1 and 11, realize receiver and loudspeaker function.
Claims (1)
1. for mobile phone, twin crystal piezoelectric ceramic sounder structure in panel computer, comprise TP screen, it is characterized in that: on the medial surface of TP screen, be provided with metallic film, the two ends of metallic film are attached on TP screen by collets insulating sticky respectively, between metallic film and TP screen, leave the gap for metallic film vibration, upper at metallic film, lower two sides is pasted with respectively multilayer twin crystal piezoelectric ceramic piece, on, lower two multilayer twin crystal piezoelectric ceramic pieces are electrically connected to mutually, the brilliant piezoelectric ceramic piece of promising plurality of layers of double is set on a slice multilayer twin crystal piezoelectric ceramic piece therein and carries the flexible electric circuit board of the signal of telecommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582322.7A CN103686562A (en) | 2013-11-20 | 2013-11-20 | Bi-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310582322.7A CN103686562A (en) | 2013-11-20 | 2013-11-20 | Bi-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103686562A true CN103686562A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310582322.7A Pending CN103686562A (en) | 2013-11-20 | 2013-11-20 | Bi-crystal piezoelectric ceramic sound generator structure used for mobile phone and tablet computer |
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| CN (1) | CN103686562A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040228501A1 (en) * | 2003-05-13 | 2004-11-18 | Shuji Saiki | Sound reproducing apparatus |
| US20070202917A1 (en) * | 2006-02-27 | 2007-08-30 | Andrew Phelps | Display and speaker module |
| CN102349035A (en) * | 2009-03-09 | 2012-02-08 | 摩托罗拉移动公司 | Display structure with direct piezoelectric actuation |
| CN103369440A (en) * | 2013-08-01 | 2013-10-23 | 广东欧珀移动通信有限公司 | Piezoelectric bone conduction receiver and portable electronic equipment |
| CN103391500A (en) * | 2013-07-12 | 2013-11-13 | 西安康弘新材料科技有限公司 | Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof |
| CN203675317U (en) * | 2013-11-20 | 2014-06-25 | 张家港市玉同电子科技有限公司 | Bicrystal piezoelectric ceramic sounder structure used for cell phone or tablet PC |
-
2013
- 2013-11-20 CN CN201310582322.7A patent/CN103686562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040228501A1 (en) * | 2003-05-13 | 2004-11-18 | Shuji Saiki | Sound reproducing apparatus |
| US20070202917A1 (en) * | 2006-02-27 | 2007-08-30 | Andrew Phelps | Display and speaker module |
| CN101031163A (en) * | 2006-02-27 | 2007-09-05 | 诺基亚有限公司 | Display and speaker module |
| CN102349035A (en) * | 2009-03-09 | 2012-02-08 | 摩托罗拉移动公司 | Display structure with direct piezoelectric actuation |
| CN103391500A (en) * | 2013-07-12 | 2013-11-13 | 西安康弘新材料科技有限公司 | Piezoelectric ceramic bone-conduction receiver vibrator and mounting structure thereof |
| CN103369440A (en) * | 2013-08-01 | 2013-10-23 | 广东欧珀移动通信有限公司 | Piezoelectric bone conduction receiver and portable electronic equipment |
| CN203675317U (en) * | 2013-11-20 | 2014-06-25 | 张家港市玉同电子科技有限公司 | Bicrystal piezoelectric ceramic sounder structure used for cell phone or tablet PC |
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Application publication date: 20140326 |