Patent ID: 8860268

Claim:
An rotational vibration exciter, comprising: a body; a rotational shaft having a top end exposed upwardly and mounted to rotate left and right in the body; an upper permanent magnet and a lower permanent magnet surrounding a bottom end of the rotational shaft fixedly mounted in the body while being vertically spaced from each other; a coil printed circuit board (PCB) for angular vibration formed with a coil pattern for angular vibration and disposed between the upper permanent magnet and the lower permanent magnet while being rigidly fixed to the rotational shaft so as to integrally rotate with the rotational shaft; an upper PCB mounted under the PCB-typed moving coil for angular vibration so as to integrally rotate with the rotational shaft and formed with a wire pattern for upper PCB angular vibration electrically connected with the coil pattern for angular vibration; a lower PCB fixed to a bottom surface in the body and formed with a wire pattern for a lower PCB current supply source electrically connected with an external current supply source; and a vertical flexible PCB having a top end electrically connected with the wire pattern for upper PCB angular vibration and a bottom end electrically connected with the wire pattern for the lower PCB current supply source.