公开(公告)号：US5998909A

公开(公告)日：1999-12-07

申请号：US11177

申请日：1998-02-22

申请人： Katsunori Kumasaka ,  Masafumi Katsuno ,  Koichi Okamoto ,  Yoshiaki Fuda

发明人： Katsunori Kumasaka ,  Masafumi Katsuno ,  Koichi Okamoto ,  Yoshiaki Fuda

IPC分类号： H01L41/053 ,  H01L41/107 ,  H01L41/08

CPC分类号： H01L41/107 ,  H01L41/053

摘要： A piezoelectric transformer has input and output terminal electrodes (12c, 12d, 13c, 13d) exposed on a bottom surface thereof. The terminal electrodes are mechanically and electrically connected to connection portions (15a-15d) of a flexible printed circuit (18) for connecting with an external circuit. The transformer is held between a base element (21b, 22) and a cover (21a, 23, 25) coupled to each other. The base element may be a circuit board on which the transformer should be mounted.

摘要翻译： PCT No.PCT / JP97 / 01638 Sec。 371日期1998年2月22日 102（e）日期1998年2月22日PCT提交1997年5月15日PCT公布。 公开号WO97 / 43791 日本1997年11月20日压电变压器具有在其底面上露出的输入输出端子电极（12c，12d，13c，13d）。 端子电极机械地和电连接到用于与外部电路连接的柔性印刷电路（18）的连接部分（15a-15d）。 变压器保持在基座元件（21b，22）和彼此联接的盖子（21a，23,25）之间。 基座元件可以是应该安装变压器的电路板。

公开(公告)号：US5847490A

公开(公告)日：1998-12-08

申请号：US879127

申请日：1997-06-19

申请人： Katsunori Kumasaka ,  Masafumi Katsuno ,  Koichi Okamoto ,  Yoshiaki Fuda

发明人： Katsunori Kumasaka ,  Masafumi Katsuno ,  Koichi Okamoto ,  Yoshiaki Fuda

IPC分类号： H01L41/04 ,  H01L41/107 ,  H01L41/08

CPC分类号： H01L41/107 ,  H01L41/053 ,  H01L41/0533

摘要： A piezoelectric transformer element is wrapped together with primary lead members and secondary lead members by a thin soft insulating sheet, with the primary and secondary lead members being exposed outside the wrapping sheet, so that the transformer element is small in size, and easy in handling, and mounting operation on a circuit board. The primary and secondary lead members can be formed of a flexible flat cable. In an electric power supply device using the piezoelectric transformer element, the transformer element, and the flexible flat cable are wrapped by the wrapping sheet together with a portion of a circuit board on which the transformer element and other circuit elements are mounted.

摘要翻译： 压电变压器元件通过薄的软绝缘片与初级引线构件和次级引线构件一起包裹，其中初级和次级引线构件暴露在包装片的外部，使得变压器元件的尺寸小，并且容易处理 ，以及在电路板上的安装操作。 初级和次级引线构件可以由柔性扁平电缆形成。 在使用压电变压器元件的电力供应装置中，变压器元件和柔性扁平电缆与其上安装有变压器元件和其他电路元件的电路板的一部分一起被包裹片包裹。

公开(公告)号：US5777425A

公开(公告)日：1998-07-07

申请号：US707144

申请日：1996-09-03

申请人： Yoshihiro Ino ,  Tetsuo Yoshida ,  Yoshiaki Fuda ,  Naoki Wako ,  Katsunori Kumasaka ,  Hutoshi Shiotani

发明人： Yoshihiro Ino ,  Tetsuo Yoshida ,  Yoshiaki Fuda ,  Naoki Wako ,  Katsunori Kumasaka ,  Hutoshi Shiotani

IPC分类号： H01L41/107 ,  H02M3/28 ,  H01L41/08

CPC分类号： H02M3/28 ,  H01L41/107

摘要： A piezoelectric transformer comprising a rectangular plate of a piezoelectric material which is polarized in a thickness direction in a first half section of the plate in a longitudinal direction but is polarized in a width direction in a second half section of the remaining half section. A pair of primary electrodes are coated on the upper and the lower surfaces of the first half section and a pair of secondary electrodes are coated on the opposite side surfaces of the second half section, in an alternative structure, the plate is polarized in the thickness direction in opposite end sections of the plate having a size one third of length of the plate and polarized in width direction at the remaining middle section of plate between opposite end sections. The pair of primary electrodes formed on upper and lower surfaces of opposite end sections of plate and pair of secondary electrodes formed on opposite side surfaces of middle section. The pair of secondary electrodes may be deposited on upper or lower surfaces adjacent opposite side edges. In a voltage converter using the piezoelectric transformer, a pulse generator generates two voltage pulse signals having frequency equal to resonance frequency of transformer but being reverse to each other in phase, which signals are applied to primary electrodes, respectively to produce high voltage AC output across secondary electrodes isolated from primary electrodes.

摘要翻译： 一种压电变压器，包括压电材料的矩形板，所述矩形板在所述板的纵向方向上的所述板的第一半部分中沿厚度方向偏振，但在所述剩余的半部的后半部分中沿宽度方向极化。 一对主电极涂覆在第一半部分的上表面和下表面上，并且一对次电极涂覆在第二半部分的相对侧表面上，在替代结构中，该板以厚度 板的相对端部的方向具有板的长度的三分之一并且在相对端部之间的板的剩余中间部分处在宽度方向上极化。 一对初级电极形成在中间部分的相对侧表面上形成的板和一对次级电极的相对端部的上表面和下表面上。 一对辅助电极可以沉积在邻近相对侧边缘的上表面或下表面上。 在使用压电变压器的电压转换器中，脉冲发生器产生两个电压脉冲信号，其频率等于变压器的谐振频率，但是相位相反，这些信号分别施加到主电极，以产生跨越高压交流输出 从主电极隔离的次级电极。

公开(公告)号：US06278227B1

公开(公告)日：2001-08-21

申请号：US09496926

申请日：2000-02-02

申请人： Masafumi Katsuno ,  Yoshiaki Fuda

发明人： Masafumi Katsuno ,  Yoshiaki Fuda

IPC分类号： H01L4108

CPC分类号： H01L41/107

摘要： A piezoelectric transformer (21) comprises a piezoelectric rectangular body (23) equally divided into first to fourth regions (A1, A2, A3, and A4) in a longitudinal direction. The first and the fourth regions (A1, A4) are provided with plane electrodes (24, 25, 26, and 27) as input electrodes and polarized in a thickness direction. Strip-like electrodes (30, 31) are formed at the boundary between the remaining second and third regions (A2, A3) as output electrodes. An AC input voltage having a frequency corresponding to a wavelength equal to a half of the length of the piezoelectric rectangular body is applied to the input electrodes to vibrate the piezoelectric plate in a two-wavelength resonance mode. A voltage produced by a piezoelectric effect in response to the vibration is extracted from an output terminal. The transformer is small in size, low in vibration rate and heat generation, and excellent in efficiency. As a modification, the input electrodes may be formed in two or three regions which are opposite to each other in displacement distribution in the two-wavelength resonance without being restricted to the first and the fourth regions while the output electrode is provided in another region.

摘要翻译： 压电变压器（21）包括在纵向方向上等分成第一至第四区域（A1，A2，A3和A4）的压电矩形体（23）。 第一和第四区域（A1，A4）设置有作为输入电极的平面电极（24,25,26和27），并且在厚度方向上极化。 在剩余的第二和第三区域（A2，A3）之间的边界处形成带状电极（30,31）作为输出电极。 将具有对应于等于压电矩形体的长度的一半的波长的频率的AC输入电压施加到输入电极，以使振荡器以双波长共振模式振动。 从输出端子提取响应于振动由压电效应产生的电压。 变压器尺寸小，振动率低，发热少，效率优异。 作为修改，输入电极可以形成在两个或三个区域中，这两个或三个区域在双波长谐振中的位移分布中彼此相反，而不限于第一和第四区域，而输出电极设置在另一区域中。

公开(公告)号：US6051915A

公开(公告)日：2000-04-18

申请号：US958207

申请日：1997-10-03

申请人： Masafumi Katsuno ,  Yoshiaki Fuda

发明人： Masafumi Katsuno ,  Yoshiaki Fuda

IPC分类号： H01L41/107

CPC分类号： H01L41/107

摘要： A piezoelectric transformer (21) comprises a piezoelectric rectangular body (23) having equally divided first to fourth regions (A1, A2, A3, and A4) in a longitudinal direction. The first and the fourth regions (A1, A4) are provided with plane electrodes (24, 25, 26, and 27) as input electrodes and polarized opposite to each other in a thickness direction. Strip-like electrodes (30, 31) are formed at the boundary between the two remaining regions (A2, A3) as output electrodes. An AC input voltage having a frequency corresponding to a wavelength equal to of the length of the piezoelectric body is applied to the input electrodes to vibrate the piezoelectric plate in a one-wavelength resonance mode. A voltage produced due to the piezoelectric effect in response to the vibration is extracted from the output electrode. The transformer is small in size, low in vibration rate and heat generation, and excellent in efficiency. As a modification, the input electrodes may be formed in two regions which are symmetric or opposite to each other in displacement distribution in the one-wavelength resonance without being restricted to the first and the fourth regions while the output electrode is provided in another region. As further modification, the first and the second regions are formed as an input portion as a separate body separate from the third and the fourth regions as an output portion. These portions are adhered to each other.

摘要翻译： PCT No.PCT / JP97 / 00335 Sec。 371日期1997年10月3日第 102（e）日期1997年10月3日PCT 1997年2月10日提交PCT公布。 公开号WO97 / 29521 日期：1997年8月14日压电变压器（21）包括在长度方向上具有等分的第一至第四区域（A1，A2，A3和A4）的压电矩形体（23）。 第一和第四区域（A1，A4）设置有作为输入电极的平面电极（24,25,26和27），并且在厚度方向上彼此极化。 在两个剩余区域（A2，A3）之间的边界处形成带状电极（30,31）作为输出电极。 将具有与压电体长度相等的波长的频率的交流输入电压施加到输入电极，以使振动器以单波长谐振模式振动。 从输出电极提取由于响应于振动的压电效应而产生的电压。 变压器尺寸小，振动率低，发热少，效率优异。 作为修改，输入电极可以在单波长谐振中的位移分布中彼此对称或相反的两个区域中形成，而不限于第一和第四区域，而输出电极设置在另一区域中。 作为进一步的修改，第一和第二区域作为输入部分形成为与作为输出部分的第三和第四区域分离的单独主体。 这些部分彼此粘附。

公开(公告)号：US5400488A

公开(公告)日：1995-03-28

申请号：US156280

申请日：1993-11-22

申请人： Tomeji Ohno ,  Tetsuo Yoshida ,  Yoshiaki Fuda

发明人： Tomeji Ohno ,  Tetsuo Yoshida ,  Yoshiaki Fuda

IPC分类号： H01L41/083 ,  H01L41/09 ,  H01L41/22

CPC分类号： H01L41/0906 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/0926 ,  H01L41/094 ,  H01L41/273 ,  H03H9/02228 ,  H03H9/178 ,  Y10T29/42

摘要： On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes, formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.

摘要翻译： 在压电振动器的第一压电片上，在第一压电片的上表面上形成第二压电片层叠在片之间的第一组电极之间。 第二组电极形成在第二压电片的上表面上，每个电极位于两个相邻的第一组电极之间的中间。 第二压电片从每个第二组电极到两个相邻的第一组电极的方向极化。 优选地，第三组电极形成在第一压电片的下表面上，每个电极布置在两个相邻的第一组电极之间的中间。 在这种情况下，第一压电片从每个第三组电极到两个相邻的第一组电极的方向极化。 每个第一组电极具有沿着第一压电片的侧表面的第一端，每个第二组电极和每个第三组电极具有沿着第一和第二压电片的相对侧表面的第二和第三端。 第一和第二公共外部电极形成在与第一组电极的第一端直接或通过第一公共电极接触并与第二组和第三组的第二和第三端接触的侧表面上 直接或通过第二和第三公共电极设置电极。

公开(公告)号：US5315205A

公开(公告)日：1994-05-24

申请号：US946946

申请日：1992-09-17

申请人： Tomeji Ohno ,  Tetsuo Yoshida ,  Yoshiaki Fuda

发明人： Tomeji Ohno ,  Tetsuo Yoshida ,  Yoshiaki Fuda

IPC分类号： H01L41/083 ,  H01L41/09 ,  H01L41/04

CPC分类号： H01L41/0906 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/0926 ,  H01L41/094 ,  H01L41/273 ,  H03H9/02228 ,  H03H9/178 ,  Y10T29/42

摘要： On a first piezoelectric sheet of a piezoelectric vibrator, a second piezoelectric sheet is stacked with interposition, between the sheets, of first-set electrodes (24(1), 24(2)) formed on an upper surface of the first piezoelectric sheet. Second-set electrodes are formed on an upper surface of the second piezoelectric sheet with each placed halfway between two adjacent ones of the first-set electrodes. The second piezoelectric sheet is poled in directions from each second-set electrode to the two adjacent ones of the first-set electrodes. Preferably, third-set electrodes are formed on a lower surface of the first piezoelectric sheet with each arranged halfway between two adjacent ones of the first-set electrodes. In this event, the first piezoelectric sheet is poled in directions from each third-set electrode to two adjacent ones of the first-set electrodes. Each first-set electrode has a first end along a side surface of the first piezoelectric sheet with each second-set and each third-set electrode possessed of a second and a third end along opposite side surfaces of the first and the second piezoelectric sheets. First and second common outside electrodes are formed on such side surfaces in contact with the first end of each first-set electrode either directly or through a first common electrode and in contact with the second and the third ends of the second-set and the third-set electrodes either directly or through second and third common electrodes.

摘要翻译： 在压电振动器的第一压电片上，在第一压电片的上表面上形成的第一组电极（24（1），24（2））之间，在片之间叠置第二压电片。 第二组电极形成在第二压电片的上表面上，每个电极位于两个相邻的第一组电极之间的中间。 第二压电片从每个第二组电极到两个相邻的第一组电极的方向极化。 优选地，第三组电极形成在第一压电片的下表面上，每个电极布置在两个相邻的第一组电极之间的中间。 在这种情况下，第一压电片从每个第三组电极到两个相邻的第一组电极的方向极化。 每个第一组电极具有沿着第一压电片的侧表面的第一端，每个第二组电极和每个第三组电极具有沿着第一和第二压电片的相对侧表面的第二和第三端。 第一和第二公共外部电极形成在与第一组电极的第一端直接或通过第一公共电极接触并与第二组和第三组的第二和第三端接触的侧表面上 直接或通过第二和第三公共电极设置电极。