发明公开
EP1343349A1 SPEAKER, SPEAKER MODULE, AND ELECTRONIC EQUIPMENT USING THE SPEAKER MODULE
有权
扬声器，扬声器模块和电子设备的扬声器模块一起使用
- 专利标题： SPEAKER, SPEAKER MODULE, AND ELECTRONIC EQUIPMENT USING THE SPEAKER MODULE
- 专利标题（中）： 扬声器，扬声器模块和电子设备的扬声器模块一起使用
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申请号： EP02772922.7申请日： 2002-09-26
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公开(公告)号： EP1343349A1公开(公告)日： 2003-09-10
- 发明人: KONISHI, Shuhei , ANDO, Kimihiro
- 申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 申请人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- 当前专利权人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP2001293804 20010926; JP2001354499 20011120; JP2002043022 20020220; JP2002191900 20020701
- 国际公布： WO03028404 20030403
- 主分类号： H04R1/28
- IPC分类号： H04R1/28 ; H04R9/10 ; H04M1/02 ; H04M1/03
摘要：
A loudspeaker comprising an enclosure 31 provided with a second diaphragm disposed at an opening, and at least one sound generator 40 coupled acoustically with the enclosure. The sound generator is provided with a first diaphragm 27, wherein the second diaphragm has an area greater than an area of the first diaphragm. In the present invention, shape of the enclosure, positioning and shape of the first and the second diaphragms can be designed at a designer's option. Thus a small-sized electronic apparatus can be obtained with a greater designing freedom, while a large-sized diaphragm prevents a decrease of generated sound pressure.
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