MODE CONVERSION ULTRASONIC TRANSDUCER AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2019/119178

A1

The present invention is applicable to the technical field of ultrasonic transduction, and discloses a mode conversion ultrasonic transducer and a method for manufacturing same. The mode conversion ultrasonic transducer comprises a housing, a mode conversion piezoelectric sheet, and a circuit board; the mode conversion piezoelectric sheet is provided in the housing; the circuit board is connected to the mode conversion piezoelectric sheet; the mode conversion piezoelectric sheet comprises a plurality of piezoelectric blocks; one side of the mode conversion piezoelectric sheet is provided with a slot that allows insertion of the circuit board; two sides of the slot are provided with electrodes of the piezoelectric blocks; the circuit board is inserted into the slot and connected to the electrodes. The manufacturing method is used for manufacturing the mode conversion ultrasonic transducer. According to the mode conversion ultrasonic transducer and the method for manufacturing same provided in the present invention, the electrodes of the piezoelectric blocks are led out by using the circuit board to ensure consistency of impedance of each piezoelectric block, and the occurrence of grating lobes is avoided by means of mode conversion, thereby obtaining good sound field focusing performance.

ZHENG HAIRONG (CN)
GUO RUIBIAO (CN)
QIAN MING (CN)
LI YONGCHUAN (CN)
HUANG JIQING (CN)

PCT/CN2017/116843

June 27, 2019

December 18, 2017

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SHENZHEN INST ADV TECH (CN)

B06B1/06; H01L41/00

US20150078136A1	2015-03-19
US20070013263A1	2007-01-18
CN106111510A	2016-11-16
JP2007095991A	2007-04-12

SHENZHEN YOUTH PATENT AND TRADEMARK AGENCY LTD. (CN)

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