| 摘要 |
PURPOSE: A portable terminal speaker is provided to maintain smoothly the vibration of a diaphragm and minimize the sound pressure by inducing the flow of air to a side direction of the portable terminal speaker. CONSTITUTION: A portable terminal speaker includes a frame(10), a diaphragm, a yoke(13), a magnet, a top plate, and a voice coil. The frame includes an assembly hole and a plurality of sound output holes(10b). The assembly hole is formed from a center portion to a bottom portion of the frame. The sound output holes are formed on an outer circumference of the frame. The diaphragm is adhered on an upper face of the frame. The yoke is coupled to the assembly hole of the frame. An extension portion is formed from a center portion to an upper portion of the yoke. The magnet is adhered to an upper face of the yoke. The top plate is adhered on an upper face of the magnet. The voice coil is adhered on a bottom face of the diaphragm.
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