Vibration motor
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United States of America Patent
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Jun 23, 2020
Grant Date -
Mar 15, 2018
app pub date -
Sep 1, 2017
filing date -
Sep 14, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
In a vibration motor, a substrate is disposed on a base plate, a coil is disposed on the substrate, and a magnet is disposed so as to be accommodated in an inner peripheral side of the coil having an annular shape by vibration. A back yoke is disposed on the magnet, a weight is disposed on the back yoke, and a case accommodates the coil, the magnet, the back yoke, and the weight. An elastic member is disposed between the case and the weight. The base plate, the case, the magnet, the back yoke, and the weight are each formed to have a rectangular shape including long sides that extend in a first direction orthogonal to a vertical direction and short sides that extend in a second direction orthogonal to the vertical direction and the first direction in a top view.
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