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Sound generator module, sound generating structure and electronic device utilizing the same

A sound and piezoelectric vibration technology, applied to electrical components, piezoelectric/electrostrictive transducers, sensors, etc., to achieve the effects of ensuring sound pressure characteristics, easy manufacturing, and thinning

Inactive Publication Date: 2007-07-04
TAIYO YUDEN KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In addition, as described in the above-mentioned Patent Document 5, when the piezoelectric sounding body is pasted on other electronic components, there is also a problem that it is necessary to adjust the acoustic space and provide a structure for guiding the sound to the front.

Method used

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  • Sound generator module, sound generating structure and electronic device utilizing the same
  • Sound generator module, sound generating structure and electronic device utilizing the same
  • Sound generator module, sound generating structure and electronic device utilizing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0105] (basic structure)

[0106] First, Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 6 .

[0107] Next, referring to FIG. 1, the basic structure of this embodiment will be described. Fig. 1 (A) is the disassembled perspective view of the sounding body module of the present embodiment, and Fig. 1 (B) is under the state that above-mentioned sounding body module has been assembled, above-mentioned Fig. 1 (A) is cut along the A-A line, to arrow indicated 1 (C) is a cross-sectional view showing an installation example of the above-mentioned sounding body module. As shown in FIG. 1(C) above, the sounding body module 10 of the present embodiment is installed inside a casing 90 of an electronic device.

[0108] As shown in FIGS. 1(A) and 1(B), the sounding body module 10 has a structure in which a piezoelectric diaphragm 12 , a sheet-shaped holding member 50 and an acoustic space forming member 60 are laminated. The piezoelectric vibrating p...

Embodiment 2

[0141] Next, Embodiment 2 of the present invention will be described with reference to FIG. 7 . The same reference numerals are used for the same or corresponding components as in the first embodiment described above (the same applies to the following embodiments). Fig. 7 (A) is the disassembled perspective view of the sounding body module of the present embodiment, and Fig. 7 (B) is under the state that above-mentioned sounding body module has been assembled, above-mentioned Fig. 7 (A) is cut along the B-B line, to arrow place A cross-sectional view viewed in the direction shown. The first embodiment described above is an example in which the holding member 50 and the acoustic space forming member 60 are formed of the same material, and is suitable for a case where the frame body 90 is hard and smooth. An example in which the acoustic space forming member 60 is formed of a different material.

[0142]The basic structure of the sounding body module 100 of the present embodim...

Embodiment 3

[0144] Next, Embodiment 3 of the present invention will be described with reference to FIG. 8 . Fig. 8 (A) is the exploded perspective view of the sounding body module of the present embodiment, and Fig. 8 (B) shows an installation example of above-mentioned sounding body module, is equivalent to above-mentioned Fig. 8 (A) is cut along C-C line, to arrow direction A cross-sectional view obtained by looking at it. The above-mentioned Embodiment 1 and Embodiment 2 have a structure in which one sounding body module has one piezoelectric vibrating plate, but this embodiment 3 has a structure in which one sounding body module has two piezoelectric vibrating plates. The sounding body module 120 of the present embodiment is composed of two piezoelectric vibrating plates 12A and 12B, their holding member 122 , and an acoustic space forming member 130 .

[0145] The piezoelectric vibrating plates 12A and 12B have the same structure as the piezoelectric vibrating plate 12 of the first ...

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Abstract

A piezoelectric sound generator module is provided which has a reduced thickness and superior mountability while ensuring good sound pressure characteristics. A sound generating structure and an electronic device, each utilizing the sound generator module, are also provided. The sound generator module has a structure in which a holding member and an acoustic space forming member are bonded to each other while a piezoelectric vibration plate including piezoelectric elements bonded to front and back sides of a vibration plate is held between both the members. A window allowing the piezoelectric vibration plate to vibrate without interference and a lead-out portion are formed in the holding member. An acoustic space, a lead-out portion, and a sound guide path are formed in the acoustic space forming member. By bonding the piezoelectric vibration plate and the acoustic space forming member to the holding member, a thin sound generator module including the sound guide path in itself is formed. The sound generator module is mounted inside a housing having a sound output hole formed in its side surface.

Description

technical field [0001] The present invention relates to a sounding body module, and a sounding structure and electronic equipment using the sounding body module, and more specifically, to a sounding body module with improved thinness and mountability, and a sounding body module using the sounding body module. Pronunciation constructs and electronic devices. Background technique [0002] For example, as acoustic conversion electronic components used in mobile phones, there are dynamic type acoustic conversion electronic components utilizing electromagnetic induction and piezoelectric type acoustic conversion electronic components utilizing piezoelectric phenomena. Among them, the dynamic sound conversion electronic components, for example, are composed of a vibrating plate, a coil of a driving source, a magnet surrounding the coil, a metal shell and cover such as stainless steel, and the vibrating plate is made of PET (polyethylene terephthalic acid). Ethylene glycol ester) ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R17/00
CPCH04R17/00
Inventor 植西广明伊藤文久松井幸弘松井久义
Owner TAIYO YUDEN KK
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