| 摘要 |
PURPOSE: A speaker is provided to prevent one-sided vibration due to weight of a thin light vibration plate inclining to one side of a speaker. CONSTITUTION: A speaker includes a frame(10) having an accommodation space, a PCB(20) equipped on the bottom of the frame, a magnet(30) installed in the center of the accommodation space, a plate(32) equipped on the top of the magnet, a voice coil(90) for vibrating by an electrical signal by being electrically connected to the PCB and a vibration plate arranged in a position covering the accommodation space to generate sound pressure by vibrating according to vibration of the voice coil. The speaker reinforces the vibration plate in order not to generate one-sided vibration of the vibration plate. A one-sided vibration prevention unit is arranged on the vibration plate and the plate for the voice coil not to directly connect the vibration plate. |
