PIEZOELECTRIC LINEAR MOTOR AND ELECTRONIC DEVICE
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
May 30, 2023
filing date -
Nov 2, 2022
priority date (Note) -
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Abstract
A piezoelectric linear motor and an electronic device, including a piezoelectric actuator and an elastic structure fixed to two opposite sides of the actuator. The piezoelectric actuator extends/retracts to drive the elastic structure to move when a voltage is applied. The elastic structure includes sets of elastic connecting portions fixed to end portions of the piezoelectric actuator, each set includes two connecting legs fixed to two opposite sides of the piezoelectric actuator, each connecting leg extends toward an outer side of the piezoelectric actuator, and connecting legs located at a same side of the piezoelectric actuator extend away from each other, and an angle is formed between each of the connecting legs and a plane where the piezoelectric actuator is located. The connecting legs have better flexibility, the elastic structure has stronger deformation capability, a haptic feedback response speed is increased and thickness of the piezoelectric linear motor is reduced.
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