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    • 3. 发明公开
    • 전기 음향 변환기용 다이어프램
    • LOUDSPEAKER DIAPHRAGM
    • KR1020040000346A
    • 2004-01-03
    • KR1020030040732
    • 2003-06-23
    • 파나소닉 주식회사
    • 우수키사와코사이키슈지
    • H04R7/12
    • H04R7/14H04R9/06
    • PURPOSE: A loudspeaker diaphragm is provided to be capable of reducing the thickness of a loudspeaker and reproducing high-quality sound even when the diaphragm is shaped like an oval or a rectangle. CONSTITUTION: In the device, the diaphragm(104) is affixed with the coil(103). As with the diaphragm(104), the coil(103) is shaped so as to extend along the longitudinal direction. Specifically, the coil(103) is shaped in a rectangle when viewed from top. The diaphragm(104) is composed of an outer portion located outside of a portion affixed with the coil(103) and an inner portion located inside of the portion affixed with the coil(103). The edge portion is provided with a convex portion(201) which has a protruding shape in cross section and surrounds the portion affixed with the coil(103). Furthermore, the center portion is provided with ribs(202) extending along the short-diameter direction of the coil(103). With these ribs, the rigidity at the center of the diaphragm(104) in the short-diameter direction is improved.
    • 目的:提供扬声器隔膜,以便即使当隔膜成形为椭圆形或矩形时,也可以减小扬声器的厚度并再现高质量的声音。 构成:在该装置中,隔膜(104)固定有线圈(103)。 与隔膜(104)一样,线圈(103)成形为沿着纵向方向延伸。 具体地说,当从顶部观察时,线圈(103)成形为矩形。 隔膜(104)由位于固定有线圈(103)的部分的外侧的外部部分和位于固定有线圈(103)的部分的内部的内部部分组成。 所述边缘部分设置有凸部,所述凸部具有突出形状的横截面并且围绕固定有所述线圈的部分。 此外,中心部分设置有沿着线圈(103)的短径方向延伸的肋(202)。 利用这些肋,改善了膜片(104)在短径方向上的中心处的刚性。