发明名称 SPEAKER DEVICE
摘要 <p>A speaker device that is smaller in size, lighter in weight, and thinner and that reproduces high-quality sound. The speaker device has a diaphragm (8) and an internal magnet type magnetic circuit (4). The diaphragm (8) is formed such that an inner peripheral edge (8a) is connected to a voice coil bobbin (6), an outer peripheral edge (8b) is connected to a frame (5) via an edge (9), a vertex (8c) is formed between the inner peripheral edge (8a) and the outer peripheral edge (8b), and the inner peripheral edge (8a) and the outer peripheral edge (8b) are positioned closer to the sound radiation side than to the vertex (8c). The internal magnet type magnetic circuit (4) drives a voice coil (7) located at the voice coil bobbin (6) connected to the inner peripheral edge (8a) of the diaphragm (8).</p>
申请公布号 WO2007135745(A1) 申请公布日期 2007.11.29
申请号 WO2006JP310396 申请日期 2006.05.24
申请人 PIONEER CORPORATION;TOHOKU PIONEER CORPORATION;DOHI, HIROYUKI;FURUTO, AKIHIKO 发明人 DOHI, HIROYUKI;FURUTO, AKIHIKO
分类号 H04R9/00;H04R7/12;H04R9/02 主分类号 H04R9/00
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