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    • 2. 发明公开
    • Drop-on-demand ink-jet printing head
    • Auf Abruf arbeitender Tintenstrahldruckkopf。
    • EP0516188A1
    • 1992-12-02
    • EP92112945.8
    • 1991-02-25
    • SEIKO EPSON CORPORATION
    • Usui, MinoriKoto, HaruhikoNakamura, HaruoShimada, YozoAbe, Tomoaki
    • B41J2/045B41J2/14
    • B41J2/1623B41J2/14274B41J2/14282B41J2/161B41J2/1612B41J2/1614B41J2/1626B41J2/1632B41J2002/14387
    • A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements (12,12') arranged at regular intervals and fixed at their one ends to a base (2), the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures (10,10'), the piezoelectric elements being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material and conductive material stacked alternately in layers. Since each piezoelectric element is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element (12,12') and the nozzle aperture (10,10') is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.
    • 打印头包括基部(2)和限定喷嘴孔(10,10')的喷嘴板(8)。 一组压电元件(12,12')的一端固定在基座(12)上,而自由端与喷嘴孔(10,10')相对。 墨水储存器(6a,6b)位于喷嘴孔(10,10')和压电元件的自由端之间。 压电元件(12,12')通过在层中交替堆叠糊状压电材料和导电材料而形成。 烧结材料的层压以提供压电板。 将板切割成具有预定宽度的多个压电元件,使得垂直于层叠方向的方向与主振动方向一致。
    • 3. 发明公开
    • Drop-on-demand ink-jet printing head
    • Auf Abruf arbeitender Tintenstrahldruckknopf。
    • EP0443628A2
    • 1991-08-28
    • EP91102760.5
    • 1991-02-25
    • SEIKO EPSON CORPORATION
    • Usui, MinoruKoto, HaruhikoNakamura, HaruoShimada, YozoAbe, Tomoaki
    • B41J2/045
    • B41J2/1623B41J2/14274B41J2/14282B41J2/161B41J2/1612B41J2/1614B41J2/1626B41J2/1632B41J2002/14387
    • A drop-on-demand ink-jet printing head provided with an array of a plurality of piezoelectric elements (12,12') arranged at regular intervals and fixed at their one ends to a base (2), the other ends of the respective piezoelectric elements being free ends which are disposed in opposition to nozzle respective apertures (10, 10'), the piezoelectric elements (12, 12') being formed by cutting, at predetermined width, a piezoelectric plate obtained by firing a lamination of paste-like piezoelectric material and conductive material stacked alternately in layers. Since each piezoelectric element (12, 12') is composed of a thin piezoelectric plate interposed between electrodes, if a voltage of only about 30V, which is sufficient to drive the thin piezoelectric plate, is applied across the electrodes, it is possible to largely flex the whole of the piezoelectric element. By this transformation, ink between the top end of the piezoelectric element (12, 12') and the nozzle aperture (10, 10') is discharged to the outside as an ink drop. Because the driving voltage required for forming an ink drop is as low, it is possible to simplify a driving circuit, and because of cutting a piezoelectric plate, it is possible to form small-sized piezoelectric elements with the same accuracy as in a process of producing a semiconductor.
    • 一种点阵式喷墨打印头,其设置有以规则间隔布置并且在其一端固定到基座(2)的多个压电元件(12,12')的阵列,相应的另一端 压电元件是与喷嘴相应的孔(10,10')相对设置的自由端,压电元件(12,12')通过以预定的宽度切割通过焙烧糊状物层压而获得的压电板, 像压电材料和导电材料交替层叠。 由于每个压电元件(12,12')由插入在电极之间的薄压电板组成,所以如果在电极之间施加足以驱动薄压电板的约30V的电压,则可以在很大程度上 使整个压电元件弯曲。 通过这种变换,压电元件(12,12')的顶端和喷嘴孔(10,10')之间的油墨作为墨滴被排出到外部。 由于形成墨滴所需的驱动电压一样低,因此可以简化驱动电路,并且由于切割压电板,可以形成小型压电元件,其精度与 生产半导体。
    • 8. 发明公开
    • Drop-on-demand ink-jet printing head
    • 按需喷墨打印头
    • EP1297958A1
    • 2003-04-02
    • EP02027777.8
    • 1991-02-25
    • SEIKO EPSON CORPORATION
    • Usui, MinoruKoto, HaruhikoNakamura, HaruoShimada, YozoAbe, Tomoaki
    • B41J2/14
    • B41J2/1623B41J2/14274B41J2/14282B41J2/161B41J2/1612B41J2/1614B41J2/1626B41J2/1632B41J2002/14387
    • The present invention comprises a drop-on-demand ink-jet printing head, comprising a base plate (44); a vibration unit which includes a plurality of piezoelectric vibrators (45, 46) each having a first end, a second end opposite from the first end in a longitudinal direction, a first surface extending in the longitudinal direction, and a second surface extending in the longitudinal direction and opposite from the first surface, wherein each of the piezoelectric vibrators (45, 46) has a laminated structure of piezoelectric layers and internal electrode layers to move the first end relative to the second end in the longitudinal direction upon application of an electric signal to the internal electrode layers thereof. The base plate (44) is fixed to the first surface of each piezoelectric vibrator (45, 46) at the second end; and an electric line (47, 48) is connected to an external electrode of each piezoelectric vibrator (45, 46) on the second surface and at the second end to apply an electric signal to the, internal electrode layers of each piezoelectric vibrator (45, 46).
    • 本发明包括一个按需喷墨式喷墨打印头,它包括一个底板(44); 振动单元,其包括多个压电振动器(45,46),每个压电振动器具有第一端,在纵向方向上与第一端相对的第二端,在纵向方向上延伸的第一表面以及在第一表面中延伸的第二表面, 其中,每个压电振动器(45,46)具有压电层和内部电极层的层压结构,以在施加电的情况下使第一端相对于第二端沿纵向方向移动 信号传送到其内部电极层。 底板(44)在第二端固定在各压电振子(45,46)的第一面上, 在第二表面上和第二端上的每个压电振动器(45,46)的外部电极上连接电线(47,48),以向每个压电振动器(45,46)的内部电极层施加电信号 ,46)。