公开(公告)号：US06389148B1

公开(公告)日：2002-05-14

申请号：US09554196

申请日：2000-05-11

申请人： Dong Ok Yoo ,  Ok Jung Yoo

发明人： Dong Ok Yoo ,  Ok Jung Yoo

IPC分类号： H04R2500

CPC分类号： H04R11/02

摘要： Disclosed is an electric-acoustic transducer comprising at least one fixed coil adapted to generate alternating magnetic field upon externally receiving an electrical drive signal, a frame having a recessed structure for centrally receiving and supporting the fixed coil, at least one moving permanent magnet disposed over the fixed coil while being spaced from the fixed coil by a desired vertical distance in such a fashion that it is vertically movable, the moving permanent magnet serving to generate non-alternating magnetic field, and a vibrating diaphragm supported by an upper end of the frame at a peripheral portion thereof, the vibrating diaphragm supporting the permanent magnet by a central portion thereof, whereby the vibrating diaphragm vibrates vertically in accordance with an interaction between the alternating magnetic field generated from the fixed coil and the non-alternating magnetic field generated from the permanent magnet.

摘要翻译： 公开了一种电声换能器，包括至少一个固定线圈，其适于在外部接收电驱动信号时产生交变磁场;框架，具有用于中心地接收和支撑固定线圈的凹陷结构;至少一个移动永磁体，其设置在 固定线圈与固定线圈隔开期望的垂直距离，使得其可垂直移动，用于产生非交变磁场的移动永磁体和由框架的上端支撑的振动膜 在其周边部分，振动膜通过其中心部分支撑永磁体，由此振动膜根据从固定线圈产生的交变磁场和从固定线圈产生的非交变磁场之间的相互作用垂直振动 永久磁铁

公开(公告)号：US06385328B1

公开(公告)日：2002-05-07

申请号：US09576607

申请日：2000-05-24

申请人： Dong Ok Yoo ,  Kyung Ho Kim

发明人： Dong Ok Yoo ,  Kyung Ho Kim

IPC分类号： H04R2500

CPC分类号： H04R1/06

摘要： An electro-acoustic micro-transducer having a high power, high efficiency acoustic transducing feature and a three-mode broad band frequency reproduction feature on a micro-scale basis is provided. The electro-acoustic micro-transducer includes a yoke formed of an internal groove and a vertical incision portion for removing a vertical wall at one side surface, a permanent magnet installed in the groove of the yoke, a plate for forming a magnetic gap, a coil wound on the bobbin, a frame which surrounds the yoke, in which a throughhole is formed in the groove corresponding to the incision portion of the yoke, and a vibration diaphragm. Therefor, spaces in the incision portion of the yoke and the frame are formed so that a connection portion between the coil and lead wire can be prevented from contacting the yoke during vertical vibration, to thereby extend an up-and-down vibration width of the bobbin.

摘要翻译： 提供了一种具有大功率，高效率的声学传感特征和基于微尺度的三模式宽带频率再现特征的电声微型换能器。 电声微转换器包括由内槽形成的轭和用于去除一侧面的垂直壁的垂直切口部，安装在轭的槽中的永久磁铁，形成磁隙的板， 缠绕在线轴上的线圈，围绕轭的框架，其中在与轭的切口部分相对应的槽中形成有通孔和振动膜。 因此，轭架和框架的切口部分中的空间被形成为使得可以防止线圈和引线之间的连接部分在垂直振动期间与轭架接触，从而延长了上下的振动幅度 线轴。

公开(公告)号：US06404896B1

公开(公告)日：2002-06-11

申请号：US09576608

申请日：2000-05-24

申请人： Dong Ok Yoo ,  Kyung Ho Kim

发明人： Dong Ok Yoo ,  Kyung Ho Kim

IPC分类号： H04R2500

CPC分类号： H04R9/045

摘要： In the electric-acoustic transducer, first to third permanent magnets are respectively received in the first to the third recesses of a yoke, so as to generate non-alternating magnetic fields. The first and second magnetic gaps are formed between the yoke and the first and the second plates. The first and the second coils are respectively disposed in the first and the second magnetic gaps, to generate alternating magnetic fields of the same phase, when an electric driving signal is applied from the exterior. The electric-acoustic transducer achieves reproduction of a broad frequency band with high power and high efficiency, even with an ultra slim or small dimension, proper for a small electronic appliance such as a notebook computer, by employing dual voice coil drivers and auxiliary magnetic circuits.

摘要翻译： 在电声换能器中，第一至第三永久磁铁分别容纳在磁轭的第一至第三凹槽中，以产生非交变磁场。 第一和第二磁隙形成在轭和第一和第二板之间。 当从外部施加电驱动信号时，第一和第二线圈分别设置在第一和第二磁隙中，以产生相同相位的交变磁场。 电声换能器通过采用双音圈驱动器和辅助磁路，实现了适用于诸如笔记本电脑的小型电子设备，甚至具有超薄或小尺寸的高功率和高效率的宽频带的再现。 。