公开(公告)号：US20160121611A1

公开(公告)日：2016-05-05

申请号：US14991430

申请日：2016-01-08

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Hans REINTEN ,  Hendrik J. STOLK ,  Patrick H.M.A. BRANDTS

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14274 ,  B41J2/14233 ,  B41J2/161 ,  B41J2/1612 ,  B41J2/1623

Abstract: An inkjet print head for expelling a droplet of a fluid through a nozzle orifice comprises a fluid channel for holding a channel amount of fluid, the fluid channel comprising a pressure chamber in fluid communication with the nozzle orifice and a piezo actuator. The piezo actuator comprises an active piezo stack, which stack comprises a first electrode, a second electrode, and a piezo-material layer arranged between the first and the second electrode, and the piezo actuator comprises a membrane having a first side and a second side, the second side being opposite to the first side. The active piezo stack is provided at the first side and the pressure chamber at the second side such that the membrane forms a flexible wall of the pressure chamber. The fluid channel, when holding the channel amount of fluid, has a fluid compliance and the piezo actuator has an actuator compliance. In accordance with the present invention, the actuator compliance is larger than the fluid channel compliance such to have a high energy coupling efficiency and consequently a low power dissipation.

Abstract translation: 用于通过喷嘴孔排出流体液滴的喷墨打印头包括用于保持通道量的流体的流体通道，流体通道包括与喷嘴孔流体连通的压力室和压电致动器。 压电致动器包括有源压电叠层，该叠层包括布置在第一和第二电极之间的第一电极，第二电极和压电材料层，并且压电致动器包括具有第一侧和第二侧的膜 第二侧与第一侧相对。 主动压电堆叠设置在第一侧和第二侧的压力室处，使得膜形成压力室的柔性壁。 流体通道在保持流体的通道量时具有流体顺应性，并且压电致动器具有致动器顺从性。 根据本发明，致动器顺从性大于流体通道顺应性，从而具有高的能量耦合效率，从而具有低的功率耗散。

公开(公告)号：US20150070430A1

公开(公告)日：2015-03-12

申请号：US14543446

申请日：2014-11-17

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Paul KUIPER ,  Hendrik J. STOLK ,  Robert P. FAESSEN

IPC: B41J2/045

CPC classification number: B41J2/04551 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459

Abstract: The invention relates to a method for operating an inkjet device, the inkjet device comprising a piezo-electric element. The inkjet device may be configured to operate in a plurality of modes, the plurality of modes comprising a first mode, wherein the inkjet device is in an off state; a second mode, wherein the inkjet device is in a standby state; and a third mode, wherein the inkjet device is in an operative state. Depending on the state of the inkjet device, the BIAS voltage applied to the piezo-electric element is selected.

Abstract translation: 本发明涉及一种操作喷墨设备的方法，该喷墨设备包括压电元件。 喷墨装置可以被配置为以多种模式操作，所述多种模式包括第一模式，其中所述喷墨装置处于关闭状态; 第二模式，其中所述喷墨装置处于待机状态; 和第三模式，其中所述喷墨装置处于可操作状态。 根据喷墨装置的状态，选择施加到压电元件的BIAS电压。

公开(公告)号：US20160279944A1

公开(公告)日：2016-09-29

申请号：US15174275

申请日：2016-06-06

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Hans REINTEN ,  Hendrik J. STOLK ,  Alex N. WESTLAND

IPC: B41J2/14 ,  B81C1/00

CPC classification number: B41J2/14201 ,  B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2002/14362 ,  B81C1/00269 ,  B81C2201/0143 ,  B81C2203/032 ,  H01L24/03

Abstract: A MEMS chip having at least two chip components bonded together by means of an adhesive layer that is applied to at least one of two mating bonding surfaces of the two components, wherein a pattern of finely distributed micro-cavities is formed in at least one of the two mating bonding surfaces, said micro-cavities being arranged to accommodate a major part of the adhesive.

Abstract translation: 一种具有至少两个芯片部件的MEMS芯片，其通过粘合剂层粘合在一起，所述粘合剂层被施加到两个部件的两个匹配粘合表面中的至少一个上，其中精细分布的微型腔的图案形成在 所述两个配合结合表面，所述微腔被布置成容纳粘合剂的主要部分。

公开(公告)号：US20150091982A1

公开(公告)日：2015-04-02

申请号：US14563501

申请日：2014-12-08

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Hendrik J. STOLK ,  Alex N. WESTLAND ,  Hans REINTEN

IPC: B41J2/14

CPC classification number: B41J2/1433 ,  B41J2002/14475 ,  B41J2202/07

Abstract: A droplet ejection device includes a pressure chamber; a nozzle orifice arranged in fluid connection with the pressure chamber; an actuator system for generating a pressure wave in a liquid present in the pressure chamber; and an obstruction member arranged in the pressure chamber in a position opposite to the nozzle orifice. The obstruction member comprises a first surface facing the nozzle orifice and rigidly coupled to a wall of the pressure chamber via a support. The support is arranged near the first surface of the obstruction member. The droplet ejection device according to the present invention may further comprise a structured nozzle inflow means which provides a gradual transition from the hollow shaped liquid passage to the nozzle orifice. The droplet ejection device prevents or at least mitigates air entrapment in dead volumes present in the interior of the droplet ejection device.

Abstract translation: 液滴喷射装置包括压力室; 布置成与所述压力室流体连接的喷嘴孔; 用于在存在于压力室中的液体中产生压力波的致动器系统; 以及阻塞构件，其布置在所述压力室中与所述喷嘴孔相对的位置。 阻塞构件包括面向喷嘴孔口的第一表面，并且经由支撑件刚性地联接到压力室的壁。 支撑件设置在阻塞构件的第一表面附近。 根据本发明的液滴喷射装置还可以包括结构化的喷嘴流入装置，其提供从中空形状的液体通道到喷嘴孔的逐渐过渡。 液滴喷射装置防止或至少减轻存在于液滴喷射装置内部的死体积中的空气滞留。