发明名称 |
Electroacoustic transducer, manufacturing method therefor, and electronic device utilizing same |
摘要 |
An electroacoustic transducer comprises a plurality of layered piezoelectric vibrator units that are arranged side by side in a direction intersecting a vibrating direction, wherein the plurality of layered piezoelectric vibrator units comprise respectively, a plurality of piezoelectric vibrators with different resonance frequencies, arranged in the vibrating direction in layers with a predetermined space therebetween; a plurality of vibrating members that hold the plurality of piezoelectric vibrators respectively; and a frame that supports edges of the plurality of vibrating members, and the plurality of vibrating members are arranged in the vibrating direction in layers with a predetermined space therebetween such that an area of the each of the plurality of vibrating members increases or decreases monotonically in the vibrating direction. |
申请公布号 |
US9510104(B2) |
申请公布日期 |
2016.11.29 |
申请号 |
US201314647899 |
申请日期 |
2013.12.02 |
申请人 |
NEC CORPORATION |
发明人 |
Onishi Yasuharu |
分类号 |
H04R17/00;H04R31/00;B06B1/06;H04R17/10;H04R1/40 |
主分类号 |
H04R17/00 |
代理机构 |
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代理人 |
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主权项 |
1. An electroacoustic transducer, comprising:
a plurality of layered piezoelectric vibrator units that are arranged side by side in a direction intersecting a vibrating direction, wherein the plurality of layered piezoelectric vibrator units comprise respectively: a plurality of piezoelectric vibrators, with different resonance frequencies arranged in the vibrating direction in layers with a predetermined space therebetween; a plurality of vibrating members that hold the plurality of piezoelectric vibrators respectively; and a frame that supports edges of the plurality of vibrating members, and the plurality of vibrating members are arranged in the vibrating direction in layers with a predetermined space therebetween such that an area of each of the plurality of vibrating members increases or decreases monotonically in the vibrating direction. |
地址 |
Tokyo JP |