发明名称 |
SPEAKER APPARATUS AND ELECTRONIC APPARATUS |
摘要 |
<p>A speaker device (100) includes a circuit board (10), a piezoelectric element (20), a spacer (30) which is disposed between the piezoelectric element (20) and the circuit board (10), and an air chamber (40). The spacer (30) fixes the piezoelectric element (20) to the circuit board (10) so that an internal space (31) is formed between the piezoelectric element (20) and the circuit board (10). The internal space (31) and the air chamber (40) communicate with each other. For example, the internal space (31) and the air chamber (40) communicate with each other through only an air medium.</p> |
申请公布号 |
EP2860988(A4) |
申请公布日期 |
2016.01.27 |
申请号 |
EP20120878322 |
申请日期 |
2012.12.26 |
申请人 |
NEC CORPORATION |
发明人 |
ONISHI, YASUHARU;KURODA, JUN;KISHINAMI, YUICHIRO;KOMODA, MOTOYOSHI |
分类号 |
H04R1/28;H04R17/00;H04R31/00 |
主分类号 |
H04R1/28 |
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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