Vibration generation device and electronic apparatus
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United States of America Patent
Stats
-
Aug 25, 2020
Grant Date -
Apr 30, 2020
app pub date -
Jan 8, 2019
filing date -
Oct 31, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vibration generation device is provided with a housing, a vibration target component provided to be movable relatively to the housing, an actuator which has a metal base portion, a metal movable portion, a beltlike shape memory alloy disposed between the base portion and the movable portion and in which, when the shape memory alloy receives current application to be changed so that the outer shape becomes small, the movable portion is pushed out in one direction of separating from the base portion in a state where the base portion abuts on a first wall surface of the housing, a resin holder component fixed to the vibration target component and abutting on a pushing surface facing the one direction of the movable portion, and an elastic member elastically energizing the movable portion in a direction opposite to the one direction.
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