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    • 6. 发明授权
    • Speaker and device using the same
    • 扬声器和设备使用相同
    • US07634102B2
    • 2009-12-15
    • US10533632
    • 2004-11-22
    • Tomoyasu TakaseMitsutaka EnomotoKazuya YamasakiKazutaka KuboTakeshi ShimokawatokoMasahide Sumiyama
    • Tomoyasu TakaseMitsutaka EnomotoKazuya YamasakiKazutaka KuboTakeshi ShimokawatokoMasahide Sumiyama
    • H04R25/00
    • H04R7/14H04R9/045H04R2307/207H04R2499/11H04R2499/13
    • A loudspeaker includes a magnetic circuit having a magnetic gap, a frame coupled to the magnetic circuit, a voice coil having a first end positioned in the magnetic gap and a second end opposite to the first end, and a diaphragm coupled to the second end of the voice coil and the frame. The voice coil has a center axis provided through the first end and the second end. The diaphragm has a first portion in which the center axis of the voice coil is provided. The first portion of the diaphragm is provided inside the voice coil. The diaphragm further has a second portion outside the voice coil. One of the first portion and the second portion of the diaphragm has a cross section in a plane including the center axis, and the cross section of the one of the first portion and the second portion of the diaphragm has an elliptic-arc shape. This loudspeaker has a small thickness, has a high sound pressure level in a high frequency range, and secures a wide reproduction range in high frequencies.
    • 扬声器包括具有磁隙的磁路,耦合到磁路的框架,具有位于磁隙中的第一端和与第一端相对的第二端的音圈,以及耦合到第二端的隔膜 音圈和框架。 音圈具有通过第一端和第二端提供的中心轴线。 隔膜具有设置音圈的中心轴的第一部分。 隔膜的第一部分设置在音圈的内部。 隔膜还具有在音圈外部的第二部分。 隔膜的第一部分和第二部分之一在包括中心轴的平面中具有横截面,并且隔膜的第一部分和第二部分中的一个的横截面具有椭圆弧形状。 该扬声器具有较小的厚度,在高频范围内具有高声压级,并确保高频率的宽再现范围。
    • 10. 发明授权
    • Speaker and method of producing the same
    • 演讲者及其制作方法
    • US08126188B2
    • 2012-02-28
    • US11718827
    • 2006-02-20
    • Tomoyasu TakaseMitsutaka EnomotoKazuya YamasakiKazutaka KuboMasahide Sumiyama
    • Tomoyasu TakaseMitsutaka EnomotoKazuya YamasakiKazutaka KuboMasahide Sumiyama
    • H04R1/00
    • H04R31/006H04R2209/024Y10T29/49005
    • A plate material is drawn into the shape of a rectangular dish and the peripheral border of each corner is press worked. A yoke is fabricated which has an outwardly projecting tongue-like flange provided at a position a predetermined distance below the top end surface. A frame made of resin is insert molded in a manner covering the flange. A magnet is secured inside the yoke and a magnetic circuit having magnetic gap is formed. A diaphragm joined with a voice coil is joined with the frame. By making a loudspeaker in this way, the bonding strength between the yoke and the frame is enhanced and a low-profile loudspeaker is achieved. Also, clearance at each corner of the yoke is eliminated, and a loudspeaker that is free from magnetic flux leakage and excellent both in quality and performance is obtained.
    • 将板材拉成矩形盘的形状,并且对每个拐角的周边边缘进行加压加工。 制造轭,其具有设置在距顶端表面下方预定距离的位置处的向外突出的舌状凸缘。 由树脂制成的框架以覆盖凸缘的方式嵌入成型。 磁轭被固定在磁轭内部,形成具有磁隙的磁路。 与音圈连接的隔膜与框架连接。 通过以这种方式制造扬声器,提高了轭和框架之间的结合强度,并实现了低调扬声器。 此外,消除了磁轭的每个拐角处的间隙,并且获得了没有磁通泄漏并且在质量和性能上都优异的扬声器。