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1. 发明专利

JP2012100190A Speaker unit 审中-公开
标题翻译：扬声器单元
公开(公告)号：JP2012100190A
公开(公告)日：2012-05-24
申请号：JP2010248161
申请日：2010-11-05
申请人： Foster Electric Co Ltd , フォスター電機株式会社
发明人： NAGAHAMA YUKIO , NIINO NOBUHIRO
IPC分类号： H04R9/02
摘要： PROBLEM TO BE SOLVED: To provide a low-profile speaker unit which includes: a diaphragm of which a central part recesses from an outer peripheral part, with a hole formed at the central part; a frame whose outer peripheral part is fitted to the outer peripheral part of the diaphragm; a magnetic circuit which is provided to the bottom part of the frame, including magnetism generating means and a yoke and having a magnetic gap for generating a magnetic field that is orthogonal to the vibration direction of the diaphragm; a voice coil consisting of a tubular bobbin and a coil wound around the outer peripheral surface of the bobbin; and a damper which is arranged between the diaphragm and the magnetic circuit, and in which an outer peripheral part is fitted to the frame, the bobbin of the voice coil is fitted to the central part so that the coil is positioned at a magnetic gap of the magnetic circuit, and a flexible part which is flexible along the vibration direction of the diaphragm is formed between the central part and the outer peripheral part.SOLUTION: A waveform formation part (flexible part) 51e of a damper 51 and fitting parts (outer peripheral parts) 51a and 51b are configured to be positioned closer to the bottom part of a frame than to a central part 51d of the damper 51.
摘要翻译：要解决的问题：提供一种低调扬声器单元，其包括：隔膜，其中心部分从外周部分凹陷，其中心部分形成有孔; 外周部嵌合在隔膜的外周部的框架; 设置在框架的底部的磁路，包括磁性发生装置和磁轭，并具有用于产生与振动膜的振动方向正交的磁场的磁隙; 由管状筒管和卷绕在筒管的外周面的线圈构成的音圈; 以及阻尼器，其布置在所述隔膜和所述磁路之间，并且外周部装配到所述框架，所述音圈的线轴被装配到所述中心部分，使得所述线圈位于所述框架的磁隙在中心部和外周部之间形成有沿着振动膜的振动方向具有柔性的磁路和柔性部。解决方案：阻尼器51的波形形成部分（柔性部分）51e和配合部分（外周部分）51a和51b构造成比框架的中心部分51d更靠近框架的底部阻尼器51.版权所有（C）2012，JPO＆INPIT

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