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Piezoelectric ceramic speaker and mobile terminal

A technology of piezoelectric ceramics and mobile terminals, which is applied in the field of loudspeakers, can solve problems such as unfavorable thinning of piezoelectric ceramic speakers and lower reliability of piezoelectric ceramic speakers, and achieve the effect of enhancing reliability

Inactive Publication Date: 2013-07-10
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two wires also take up space in the piezoelectric ceramic speaker, so this method is not conducive to the thinning of the piezoelectric ceramic speaker
Moreover, the piezoelectric ceramic sheet itself is relatively fragile, and the existence of two wires whose spatial positions are not fixed may reduce the reliability of the piezoelectric ceramic speaker.

Method used

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  • Piezoelectric ceramic speaker and mobile terminal
  • Piezoelectric ceramic speaker and mobile terminal
  • Piezoelectric ceramic speaker and mobile terminal

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Embodiment Construction

[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0026] Figure 1-3 A first embodiment of the invention is shown.

[0027] figure 1 is a schematic diagram of the external structure of the piezoelectric ceramic speaker provided by the first embodiment of the present invention.

[0028] figure 2 It is an exploded schematic view of the piezoelectric ceramic speaker provided by the first embodiment of the present invention.

[0029] image 3 is a schematic cross-sectional view of the piezoelectric ceramic speaker provided by the first embodiment of the present invention.

[0030] Such as Figure 1-3 As shown, the piezoelectric ceramic speaker includes a piezoelectric ceramic sheet 1 , a flexible circuit board 2 , a fixing glue 3 , and a casing 4 .

[0031] The piezoelectric ceramic sheet 1 is made of piezoelectric ceramic material, and is used...

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Abstract

The invention discloses a piezoelectric ceramic speaker which is suitable for a mobile terminal and the mobile terminal with the speaker. According to the piezoelectric ceramic speaker, phenolic resin base materials in a traditional piezoelectric ceramic speaker are replaced by flexible circuit boards, so that a sound signal needs not to be provided for the piezoelectric ceramic speaker through wires. The piezoelectric ceramic speaker is arranged on the back portion of the mobile terminal, and a back shell of the mobile terminal is used as an outer shell of the piezoelectric ceramic speaker so as to protect piezoelectric ceramic pieces and the flexible circuit boards. The piezoelectric ceramic speaker and the mobile terminal are in favor of the thinning of the speaker and the mobile terminal and improve the use reliability of the speaker and the mobile terminal.

Description

technical field [0001] The invention relates to the field of loudspeakers, in particular to a piezoelectric ceramic loudspeaker suitable for a mobile terminal and a mobile terminal with the loudspeaker. Background technique [0002] At present, the trend of increasing the speed of the central processing unit (CPU) of the smartphone is obvious. The high speed of the central processing unit makes the power consumption of the smart phone larger. Major mobile phone manufacturers have adopted larger batteries to extend the standby time of mobile phones. At the same time, users are increasingly preferring smaller phones. Therefore, with the development of smart phones, the need for thinner speakers for mobile phones is becoming more and more obvious. [0003] In traditional piezoelectric ceramic speakers, the ceramic sheet is generally fixed on the phenolic resin substrate first, and the ceramic sheet is connected to the peripheral circuit through two wires to achieve the effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/02H04R17/00
Inventor 余卫斌严笔祥
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD