Vibration motor
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Feb 11, 2020
Grant Date -
Jan 25, 2018
app pub date -
Jul 24, 2017
filing date -
Jul 24, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vibration motor includes a stationary portion including a casing and a coil; a vibrating body including a weight and a magnet, the vibrating body being supported so as to be vibratable in one direction relative to the stationary portion; an elastic member located between the stationary portion and the vibrating body; and a top plate portion that is disposed above the vibrating body in an up-down direction that is perpendicular to the one direction. The magnet is disposed above the coil, and the top plate portion faces the magnet in the up-down direction. The magnet includes a set of first magnets that generate magnetic forces that are opposite to each other in the up-down direction and one or more second magnets that are interposed between the first magnets and each generate a magnetic force in the one direction.
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