公开(公告)号：EP2077395A1

公开(公告)日：2009-07-08

申请号：EP06822368.4

申请日：2006-10-26

申请人： Cluster Technology Co., Ltd.

发明人： ADACHI, Yoshinori ,  KOIZUMI, Kenji ,  KUSUMOTO, Akiko

IPC分类号： F04B43/04

CPC分类号： F04B43/04

摘要： Provided is a droplet ejecting apparatus by which durability of a portion driven by a piezoelectric element and productivity can be improved. The droplet ejecting apparatus is provided with a pressurizing chamber (42) communicating with a nozzle (41); a vibrating membrane (32) forming a part of the pressurizing chamber (42); a piezoelectric element for vibrating the vibrating membrane (32); a protruding section (31) provided on the vibrating membrane (32) by being connected to the piezoelectric element, for transmitting vibration to the vibrating membrane (32), and a flow channel (35) communicating with the pressurizing chamber (42). The droplet ejecting apparatus ejects a droplet from the nozzle (41). At least a base portion in the vicinity of the vibrating membrane (32) on the protruding section (31) is an expanding section whose cross-sectional area increases toward the vibrating membrane. An angle formed by the vibrating membrane (32) and a side wall (31b) of the expanding section is obtuse and/or a boundary section between the vibrating membrane (32) and the side wall (31b) is rounded (R1).

摘要翻译： 本发明提供一种能够提高由压电元件驱动的部分的耐久性和生产性的液滴喷射装置。 液滴喷射装置具有与喷嘴（41）连通的加压室（42） 形成加压室（42）的一部分的振动膜（32）; 振动振动膜（32）的压电元件; 通过与压电元件连接而设置在振动膜32上并向振动膜32传递振动的突出部31以及与加压室42连通的流路35。 液滴喷射装置从喷嘴（41）喷射液滴。 突出部（31）上的振动膜（32）附近的至少基部是朝向振动膜的截面积增大的扩展部。 振动膜（32）与扩张部分的侧壁（31b）所成的角度是钝角，和/或振动膜（32）与侧壁（31b）之间的边界部分被倒圆（R1）。

公开(公告)号：EP2077394A1

公开(公告)日：2009-07-08

申请号：EP06822363.5

申请日：2006-10-26

申请人： Cluster Technology Co., Ltd

发明人： ADACHI, Yoshinori ,  KOIZUMI, Kenji ,  FUJIMOTO, Takayoshi

IPC分类号： F04B43/04

CPC分类号： F04B43/04

摘要： Provided is an efficient droplet ejecting apparatus, which has high assembly accuracy even with a simple structure and simple assembly steps and transmits expansion and contraction of a piezoelectric element to a protruding section. A method for manufacturing such droplet ejecting apparatus is also provided. The droplet ejecting apparatus is provided with a pressurizing chamber communicating with a nozzle (41); a vibrating membrane forming a part of the pressurizing chamber; a piezoelectric element (10) for vibrating the vibrating membrane; a protruding section provided on the vibrating membrane by being connected to the piezoelectric element (10), for transmitting vibration to the vibrating membrane; and a bracket (20). The droplet ejecting apparatus ejects a droplet from the nozzle (41). A member provided with the pressurizing chamber, the vibrating membrane and the protruding section can be fixed to the bracket (20). The bracket (20) is provided with a groove section between a releasing section and the protruding section, for guiding the bar-shaped piezoelectric element (10). The piezoelectric element (10) is adhered in the groove section.

摘要翻译： 提供了一种有效的液滴喷射装置，其即使具有简单的结构和简单的组装步骤也具有高的组装精度，并且将压电元件的膨胀和收缩传递到突出部分。 还提供了制造这种液滴喷射装置的方法。 液滴喷射装置设有与喷嘴（41）连通的加压室; 形成加压室的一部分的振动膜; 用于振动所述振动膜的压电元件（10）; 突出部，其通过与所述压电元件连接而设置在所述振动膜上，用于将振动传递到所述振动膜; 和支架（20）。 液滴喷射装置从喷嘴（41）喷射液滴。 设置有加压室，振动膜和突出部的构件可以固定到支架（20）。 托架（20）在释放部分和突出部分之间设置有用于引导棒状压电元件（10）的槽部。 压电元件（10）粘附在凹槽部分中。