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琴弦振动式扬声器本专利提出一种琴弦振动式扬声器,其基本结构是将一条柔软的、具有一定弹性的带状金属膜,贯穿于多块磁钢构架形成的多个磁隙中。带状金属膜既作为音频电流载体,又用其表面直接推动空气发声,是一种将音圈和振膜合为一体的电动式扬声器。由于振膜全部处在磁场中,受音频电流的电磁力直接推动,因而失真很小。由于电磁阻尼的存在,振膜不可能发生自由振动。这种扬声器可以作成圆柱形、空心方柱形、环形等多种造型。辐射声波呈轴对称或平面波型。
Vibrating Loudspeaker This patent proposes a vibrating string loudspeaker. The basic structure of the loudspeaker is a soft, flexible band-shaped metal film which penetrates through a plurality of magnetic gaps formed by a plurality of magnet frames. Ribbon metal film as both the audio current carrier, but also with its surface directly promote the sound of air, is a voice coil and diaphragm integrated electric speakers. Since the diaphragm is all in the magnetic field, it is directly driven by the electromagnetic force of the audio current, so the distortion is very small. Due to the existence of electromagnetic damping, the diaphragm can not occur free vibration. This speaker can be made cylindrical, hollow square cylinder, ring and other shapes. Radiation sound waves were axisymmetric or plane wave.