发明名称 |
ELECTRO-ACOUSTIC TRANSDUCER AND ELECTRONIC APPARATUS |
摘要 |
PROBLEM TO BE SOLVED: To provide an electro-acoustic transducer which enables a metal vibration member and a metal diaphragm to be fixed to each other with sufficient strength and high positioning accuracy.SOLUTION: An electro-acoustic transducer 100 includes: a metal diaphragm 14 and a metal vibration member 15 fixed to the diaphragm 14. The electro-acoustic transducer 100 includes a vibration element (for example, a piezoelectric vibrator 13) surface-joined to the diaphragm 14 and an input part 20 that inputs a signal to the vibration element to vibrate the vibration element thereby producing a sound wave from a vibration member 15. The vibration member 15 includes a body part 15a and a fixing shaft 15b protruding to the diaphragm 14 side relative to the body part 15a. A fixing hole 14a is formed in the diaphragm 14. The vibration member 15 is fixed to the diaphragm 14 by press-fitting the fixing shaft 15b in the fixing hole 14a. |
申请公布号 |
JP2013172237(A) |
申请公布日期 |
2013.09.02 |
申请号 |
JP20120033773 |
申请日期 |
2012.02.20 |
申请人 |
NEC CASIO MOBILE COMMUNICATIONS LTD |
发明人 |
SATO SHIGEO;KURODA ATSUSHI;ONISHI YASUHARU;KISHINAMI YUICHIRO |
分类号 |
H04R17/00;H04R19/02 |
主分类号 |
H04R17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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