PIEZO ACTUATOR, INKJET HEAD ASSEMBLY AND METHOD FOR MANUFACTURING THE SAME

PURPOSE: A piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same are provided to form a portion in which an external electrode is connected to a flexible printed circuit to be flat, thereby fimly keeping the connection of the external electrode and the flexible prin...

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Bibliographic Details
Main Authors KANG PIL JOONG, LEE, HWA SUN, LEE, TAE KYUNG
Format Patent
LanguageEnglish
Korean
Published 10.06.2013
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CORRECTION OF TYPOGRAPHICAL ERRORS
ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:PURPOSE: A piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same are provided to form a portion in which an external electrode is connected to a flexible printed circuit to be flat, thereby fimly keeping the connection of the external electrode and the flexible printed circuit. CONSTITUTION: An inkjet head plate(110) includes an ink inlet(111), a reservoir(112), a plurality of pressure chambers(114), and a plurality of nozzles(116). The reservoir stores ink which is introduced into the ink inlet. A plurality of restrictors(113) is provided between the reservoir and the pressure chambers in order to restrict ink in the pressure chambers from flowing backwardly to the reservoir. A piezoelectric actuator(120) provides driving force for discharging ink to the inkjet head plate. The piezoelectric actuator includes a lower electrode(123) serving as a common electrode, a plurality of upper electrode(127) serving as driving electrodes, and a piezoelectric substance(125) deformed according to application of voltage.
Bibliography:Application Number: KR20110126592