| 发明名称 | Driver unit and earphone device | ||
| 摘要 | Provided is a driver unit including an acoustic conversion unit; and a housing body in which the acoustic conversion unit is housed, and in which an opening is formed. The acoustic conversion unit includes a pair of magnets arranged to face each other, a coil to which an input signal is supplied, an armature at which a vibrating part passing through the coil and arranged between the pair of magnets is formed, and a vibrating plate connected to the armature. A size of the opening is larger than 40 μm and smaller than 100 μm. | ||
| 申请公布号 | US8948435(B2) | 申请公布日期 | 2015.02.03 |
| 申请号 | US201213561880 | 申请日期 | 2012.07.30 |
| 申请人 | Sony Corporation | 发明人 | Oosato Yuusuke;Nageno Koji;Suzuki Takahiro |
| 分类号 | H04R25/00;H04R1/10;H04R1/26;H04R1/28;H04R11/02 | 主分类号 | H04R25/00 |
| 代理机构 | Sony Corporation | 代理人 | Sony Corporation |
| 主权项 | 1. An earphone device comprising: a first driver unit comprising: a first acoustic conversion unit; anda first housing body to house the first acoustic conversion unit, wherein a first opening is formed in the first housing body to emit sound generated by the first acoustic conversion unit to a housing of the earphone device; and a second driver unit comprising: a second acoustic conversion unit; and a second housing body to house the second acoustic conversion unit, wherein a second opening of diameter larger than the diameter of the first opening is formed in the second housing body to emit sound generated by the second acoustic conversion unit to the housing of the earphone device. | ||
| 地址 | Tokyo JP | ||