| 摘要 |
The present invention relates to a vibrator used in a speaker or a microphone and, more particularly, to an interactive vibrator which includes a case which has an internal loading space and is separated to or combined with an upper part and a lower part, a sound pressure changing unit whose polarity is switched according to the direction of a current flowing in a dual coil which is wound around an electromagnet and the electromagnet, a yoke which receives the sound pressure changing unit, a diaphragm which is arranged on the upper side of the sound pressure changing unit and is combined with the yoke, a PCB which is located on the lower side of the yoke and includes a connection circuit for an external electrical connection to control the degree and the direction of the current flowing in the dual coil and a single layer plate which is located on the upper side of the diaphragm. An existing vibrator is used for a single product of a transmission (microphone) or a reception (speaker) using a single coil based on a sound pressure changer. The vibrator according to the present invention is selectively used as a transmission or reception vibrator by performing transmission and reception operations as one product by using the dual coil. |
