专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明公开

EP1403052A1 Inkjet head 有权
标题翻译：喷墨头
公开(公告)号：EP1403052A1
公开(公告)日：2004-03-31
申请号：EP03021555.2
申请日：2003-09-24
申请人： BROTHER KOGYO KABUSHIKI KAISHA , Kyocera Corporation
发明人： Hirota, Atsushi , Ueki, Chitoshi
IPC分类号： B41J2/14
CPC分类号： B41J2/14209 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306 , B41J2202/20
摘要： An inkjet head includes a cavity unit (2) and a piezoelectric unit (20) stacked on the cavity unit. The cavity unit has a plurality of ink pressure chambers (19A) and a plurality of nozzles being in fluid communication with respective ones of the ink pressure chambers. The piezoelectric unit includes a laminate of four piezoelectric layers (21,22,23,24) and two common electrodes (22A,24A). The piezoelectric unit is provided with a plurality of driving electrodes (20A) formed on a top face thereof at positions corresponding to respective ones of the pressure chambers. One of the common electrodes (22A) is provided between the upper most piezoelectric layer (21) and the piezoelectric layer immediately therebelow (22) so as to extend substantially over the whole area defined between those two piezoelectric layers. The other common electrode (24A) is located between the lower most piezoelectric layer (24) and the piezoelectric layer immediately thereabove (23) so as to extend substantially over the whole area defined therebetween.
摘要翻译：喷墨头包括腔体单元（2）和堆叠在腔体单元上的压电单元（20）。空腔单元具有多个墨水压力室（19A）和多个喷嘴，这些喷嘴与相应的墨水压力室流体连通。压电单元包括四个压电层（21,22,23,24）和两个公共电极（22A，24A）的叠层。压电单元在其顶面上的与各个压力室对应的位置处设置有多个驱动电极（20A）。其中一个公共电极（22A）设置在最上面的压电层（21）和紧接在其下面的压电层（22）之间，以基本上在这两个压电层之间限定的整个区域上延伸。另一个公共电极（24A）位于最下面的压电层（24）和紧邻其上方的压电层（23）之间，从而基本上在其间限定的整个区域上延伸。

IPRDB

热门服务

关于我们

友情链接

联系方式