| 摘要 |
The present invention relates to a speaker capable of reducing a distortion, increasing conversion efficiency, and realizing super slimness by minimizing air resistance which generates when a vibration plate vibrates as the vibration of the vibration plate is performed by rotating the plate back and forth based on a rotation axis. The speaker by the present invention includes: a case which has an opening for sound propagation in one side; a vibration module which is installed to rotate back and forth around a rotation electrode in the case; and a magnetic circuit module which rotates the vibration module back and forth. The vibration module includes: a vibration plate which is installed in the opening for sound propagation in the case through a medium of an edge; a flat rib which is formed on the other side of the vibration plate in one united body; a coil unit which is combined with the flat rib in one united body; and a rotation electrode which is installed to be adjacent to one end part of the vibration plate, wherein the vibration plate and the coil unit rotate back and forth along the same rotation trace around the rotation electrode. |
