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    • 5. 发明授权
    • Electromagnetic converter
    • 电磁转换器
    • US08422728B2
    • 2013-04-16
    • US12967487
    • 2010-12-14
    • Shunji Yoshida
    • Shunji Yoshida
    • H04R11/02
    • H04R7/16H04R1/06H04R7/12H04R7/24H04R7/26H04R9/025H04R9/043H04R9/045H04R31/003H04R2207/021H04R2307/025H04R2307/204
    • An electromagnetic converter includes a magnetic circuit having permanent magnets, a lower frame for fixing magnetic pole faces of these permanent magnets thereto, an upper frame having an opening formed therein on a side of the other magnetic pole faces of the permanent magnets and plates fixed to the other magnetic pole faces, and a diaphragm having a voice coil pattern arranged on side portions thereof in a direction of the length thereof and on a top portion thereof in a direction of the width thereof. Protruding portions join between these side portions. The periphery of the top portion is joined to the periphery of the opening of the upper frame via an upper gasket. A flange at the edges of the four side portions is joined to an inner surface of the upper frame, i.e., an inner portion of the magnetic circuit via a lower gasket.
    • 电磁转换器包括具有永久磁铁的磁路,用于将这些永久磁铁固定到其上的磁极面的下框架,具有形成在其中的永久磁铁的另一磁极面侧的开口的上框架, 另一个磁极面,以及具有布置在其长度方向上的侧面部分上的音圈图案和其宽度方向上的其顶部的隔膜。 突出部分在这些侧部之间连接。 顶部的周边经由上垫圈连接到上框架的开口的周边。 在四个侧部的边缘处的凸缘通过下垫圈连接到上框架的内表面,即磁路的内部。