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1. 发明授权

US5998909A Piezoelectric transformer 失效
标题翻译：压电变压器
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。

2. 发明授权

US5847490A Piezoelectric transformer wrapped by wrapping member of soft insulating sheet material 失效
标题翻译：压电变压器由软绝缘片材包裹件包裹
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。

3. 发明授权

US06278227B1 Piezoelectric transformer 失效
标题翻译：压电变压器
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。

4. 发明授权

US6051915A Piezoelectric transformer 失效
标题翻译：压电变压器
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。

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