Patent ID: 7679240
Filing Date: 2010-03-16
Classification: H02K,H05K

Abstract:
1. A vibration motor comprising: a vibration motor main body provided with a motor shaft projected from a motor case, an eccentric weight being attached to said motor shaft; a metal holder frame having a tubular shape, the tubular shape surrounding the vibration motor main body and comprising a flat bottom part and a wall surface, said flat bottom part having an inner projection with a bottom-up recess part, said wall surface having a domed profile rising up from both-side edges of said flat bottom part; and a plastic end cap including a pair of external terminal pieces attached to the plastic end cap for closing an opening of the motor case at an end opposite to said eccentric weight; wherein said plastic end cap integrally and unitarily includes a pair of spacer parts inserted between and abutting against said motor case and the inner sides of the both-side edges of said flat bottom part to exert wedge pressure.