| 发明名称 | Piezoelectric speaker | ||
| 摘要 | A piezoelectric speaker includes a cover with a receiving space and a vibrating speaker unit accommodated in the receiving space. The vibrating speaker unit includes a piezoelectric oscillator including an upper surface and an lower surface, a diaphragm disposed on the upper surface of the piezoelectric oscillator, and a vibrating member kept a distance from the lower surface of the piezoelectric oscillator. The piezoelectric oscillator defines a first amplitude capable of driving the diaphragm only and a second amplitude driving both the vibrating member to vibrating with a largest amplitude and the diaphragm to generate sound. The distance is larger than the first amplitude and smaller than the second amplitude. | ||
| 申请公布号 | US8798293(B2) | 申请公布日期 | 2014.08.05 |
| 申请号 | US201113332334 | 申请日期 | 2011.12.20 |
| 申请人 | AAC Acoustic Technologies (Shenzhen) Co., Ltd.;American Audio Components Inc. | 发明人 | Liu Lin;He Jie;Yu Sheng-Ping |
| 分类号 | H04R25/00 | 主分类号 | H04R25/00 |
| 代理机构 | Anova Law Group, PLLC | 代理人 | Anova Law Group, PLLC |
| 主权项 | 1. A piezoelectric speaker, comprising: a cover with a receiving space; a vibrating speaker unit accommodated in the receiving space, including a piezoelectric oscillator including an upper surface and an lower surface, a diaphragm disposed on the upper surface of the piezoelectric oscillator, and a vibrating member kept a distance from the lower surface of the piezoelectric oscillator; wherein the piezoelectric oscillator defines a first amplitude capable of driving the diaphragm only and a second amplitude driving both the vibrating member to vibrating with a largest amplitude and the diaphragm to generate sound, the distance is larger than the first amplitude and smaller than the second amplitude. | ||
| 地址 | Shenzhen CN | ||