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    • 94. 发明专利
    • Dynamic type speaker
    • 动态型扬声器
    • JPS5765095A
    • 1982-04-20
    • JP14169180
    • 1980-10-08
    • Matsushita Electric Ind Co Ltd
    • SAEKI SHIYUUJISATOU KATSUMASASATOU KAZUHIDEISHIKAWA SEIICHIINOUE HIDEAKITANAKA TSUNEO
    • H04R9/04H04R7/04H04R7/26H04R9/06
    • H04R9/063
    • PURPOSE:To obtain sound pressure frequency flat to high frequencies, by providing a damping member at a largest amplitude of asymmetrical mode having three nodes produced on a rectangular flat diaphragm plate constituting a speaker driven at two points with two coil bobbins. CONSTITUTION:Yokes 1, 1' having center poles 2, 2' on a frame 5 are provided with an interval, ring magnets 3, 3' are inserted around the poles 2, 2', ring plates 4, 4' are fixed on them to produce magnetic gap between them and the poles 2, 2'. On the plates 4, 4', ring shape dampers 10, 10' are arranged, and while coil bobbins 8, 8' having voice coils 9, 9' provided at lower surface are inserted to the hole of the dampers 10, 10', a rectangular flat diaphragm plate 6 is fixed on the base 5 by using an edge member 7. With this constitution, a damping member 11 is bonded by selecting a part having maximum amplitude caused by asymmetrical drive to the rear face of the diaphragm plate 6.
    • 目的:为了获得声压频率平坦至高频,通过提供具有三个节点的阻尼构件,该阻尼构件以不对称模式的最大幅度提供,该三个节点在构成用两个线圈筒管两点驱动的扬声器的矩形平面隔板上产生。 构成:在框架5上具有中心极2,2'的轭1,1'设置有间隔,环形磁铁3,3'围绕极2,2'插入,环板4,4'固定在它们上 以在它们和极2,2'之间产生磁隙。 在板4,4'上设置有环形阻尼器10,10',并且在下表面设置有音圈9,9'的线圈架8,8'插入阻尼器10,10'的孔中, 通过使用边缘构件7将矩形平坦的隔膜板6固定在基座5上。通过这种构造,通过从隔膜板6的后表面选择具有由非对称驱动引起的最大振幅的部分来结合阻尼构件11。