Piezoelectric actuator and piezoelectric actuating plate thereof

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United States of America Patent

PATENT NO 11342494
APP PUB NO 20180331276A1
SERIAL NO

15973976

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Abstract

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A piezoelectric actuator for a miniature fluid transportation device is provided and includes a piezoelectric actuating plate and a piezoelectric element. The piezoelectric actuating plate includes a suspension plate, an outer frame, and brackets. The suspension plate has a first thickness. The outer frame is arranged around the suspension plate and has a third thickness. Each of the brackets is connected between the suspension plate and the outer frame and has a fourth thickness. The third thickness is larger than the first thickness, and the first thickness is larger than the fourth thickness. The suspension plate, the outer frame and the brackets are constructed to form different stepped structures to minimize the thickness of the brackets, enhance the elasticity of the brackets. Thus, displacement of the suspension plate in the vertical direction is enhanced and the transportation efficiency of the miniature fluid transportation device is intensified.

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Patent Owner(s)

Patent OwnerAddress
MICROJET TECHNOLOGY CO LTD1F NO 28 R&D 2ND RD SCIENCE- BASED INDUSTRIAL PARK HSINCHU CITY 30076

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Shih-Chang Hsinchu, TW 303 2647
Han, Yung-Lung Hsinchu, TW 312 1145
Lee, Wei-Ming Hsinchu, TW 129 532
Liao, Hung-Hsin Hsinchu, TW 35 170
Liao, Jia-Yu Hsinchu, TW 70 621

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