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    • 9. 发明授权
    • Piezoelectric actuator, inkjet head assembly and method of manufacturing the same
    • 压电致动器,喷墨头组件及其制造方法
    • US08777378B2
    • 2014-07-15
    • US13407331
    • 2012-02-28
    • Tae Kyung LeePil Joong KangHwa Sun Lee
    • Tae Kyung LeePil Joong KangHwa Sun Lee
    • B41J2/045
    • B41J2/14233B41J2002/14491B41J2202/18
    • There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions.
    • 提供了压电致动器,喷墨头组件及其制造方法。 压电致动器包括:提供驱动电压的上下电极; 以及通过使液体压电体固化而形成在上下电极之间的压电体,并且在设置在喷墨头中的多个压力室中的每个压力室中的墨水中提供驱动力,其中,压电体包括多个分支部, 在所述多个压力室的每一个的上部,以及在所述多个分支部的一端连接到所述多个分支部中的每一个的同时一体地设置的大面积部分。