Actuator, method for manufacturing the actuator, and acoustic transmitter

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United States of America Patent

PATENT NO 11931776
APP PUB NO 20200206779A1
SERIAL NO

16232176

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Abstract

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Provided are an actuator, method for manufacturing the actuator, and acoustic transmitter having the actuator. The actuator includes: an elastic metal member having a plurality of curved segments and a plurality of connection segments which constitute a ring structure with a long-axis direction and a short-axis direction; a multilayer piezoelectric member disposed within the ring structure and having a plurality of stacked piezoelectric units along the long-axis direction; and a plurality of coupling members disposed within the ring structure, wherein the multilayer piezoelectric member has two ends in the long-axis direction that are coupled to the connection segments of the elastic metal member in the long-axis direction. A preload stress is imparted to the elastic metal member. A plurality of coupling members having a size corresponding to the preload stress are disposed between the elastic metal member and the multilayer piezoelectric member.

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Patent Owner(s)

Patent OwnerAddress
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE195 SEC 4 CHUNG HSING RD CHUTUNG HSINCHU 310401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Chun-Ti Hsinchu, TW 11 62
Chiu, Yu-Tsung Hsinchu, TW 12 34
Lin, Chia-Hsin Hsinchu, TW 39 99
Sheu, Ching-Iuan Hsinchu, TW 4 10

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