公开(公告)号：US06448698B1

公开(公告)日：2002-09-10

申请号：US09743421

申请日：2001-02-21

申请人： Kazuhiro Okuda ,  Yasushi Goto ,  Seiichi Minami ,  Tomokazu Yamaguchi ,  Satoshi Kawamura ,  Kunitoshi Kawano ,  Hiroshi Fukushima

发明人： Kazuhiro Okuda ,  Yasushi Goto ,  Seiichi Minami ,  Tomokazu Yamaguchi ,  Satoshi Kawamura ,  Kunitoshi Kawano ,  Hiroshi Fukushima

IPC分类号： H01L4108

CPC分类号： H01L41/083 ,  H01L41/0471 ,  H01L41/0477 ,  H01L41/0831 ,  H01L41/107

摘要： A laminated piezoelectric transformer according to the present invention comprises (a) a laminated body formed by laminating a plurality of ceramic layers and a plurality of internal electrodes and (b) a plurality of external electrodes electrically connected with the internal electrodes and disposed on the surface of the laminated body. Further, the internal electrodes of the laminated piezoelectric transformer of the invention are characterized by having a plurality of primary internal electrodes positioned at the middle portion along the longitudinal direction of the laminated body and a plurality of secondary internal electrodes positioned at both end portions of the laminated body. By virtue of this configuration of the invention, the polarization volume on the secondary side can be enlarged and, therefore, the laminated piezoelectric transformer of the invention can step up voltages at high energy conversion efficiency.

摘要翻译： 根据本发明的叠层压电变压器包括（a）通过层叠多个陶瓷层和多个内部电极而形成的层叠体和（b）与内部电极电连接并设置在表面上的多个外部电极 的层叠体。 此外，本发明的层压型压电变压器的内部电极的特征在于，沿着层叠体的长度方向具有位于中间部的多个主内部电极和位于层叠体的两端部的多个次内部电极 层压体 通过本发明的这种结构，能够扩大二次侧的极化体积，因此本发明的层压型压电变压器可以以高的能量转换效率来升高电压。

公开(公告)号：US4156825A

公开(公告)日：1979-05-29

申请号：US903775

申请日：1978-05-05

申请人： Kaneichi Kondo ,  Kunitoshi Kawano ,  Yuji Shingu

发明人： Kaneichi Kondo ,  Kunitoshi Kawano ,  Yuji Shingu

IPC分类号： F23Q3/00 ,  H01L41/113 ,  H02N2/00 ,  H01L41/10

CPC分类号： H02N2/183 ,  F23Q3/002

摘要： The present invention provides a high voltage generating device utilizing a piezoelectric element. The device comprises an outer rotary member having a plurality of saw tooth-like cam lobes formed on its outer circumference equidistant from each other and an inner rotary member disposed in the outer rotary member. A cam follower for applying an impact to a piezoelectric element is biased toward the outer rotary member to cooperate with one of the cam lobes. The inner rotary member has a ball mounted therein and a spring for biasing the ball radially outwardly into operative engagement with an inner surface of the outer rotary member. The inner surface of the outer rotary member is so constructed and arranged as to permit free rotation of the inner rotary member unless the inner rotary member is depressed and turned in a predetermined direction. Under this condition the outer rotary member will rotate in the same rotational direction to cause the cam lobes to actuate the cam follower at several times, thus causing the piezoelectric element to produce a series of sparks.

摘要翻译： 本发明提供一种利用压电元件的高压发生装置。 该装置包括外旋转构件，其具有形成在其彼此等距离的外周上的多个锯齿形凸轮凸角和设置在外旋转构件中的内旋转构件。 用于对压电元件施加冲击的凸轮从动件偏压向外旋转构件，以与凸轮凸角中的一个配合。 内部旋转构件具有安装在其中的球和用于将球径向向外偏压以与外部旋转构件的内表面操作接合的弹簧。 外旋转构件的内表面被构造和布置成允许内旋转构件的自由旋转，除非内旋转构件被按压并沿预定方向转动。 在这种条件下，外旋转构件将沿相同的旋转方向旋转，以使凸轮凸角几次致动凸轮从动件，从而使压电元件产生一系列火花。