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公开(公告)号：US06593844B1
公开(公告)日：2003-07-15
申请号：US09868028
申请日：2001-06-13
IPC分类号： H01C710
CPC分类号： H01C17/006 , H01C1/1406 , H01C7/021 , H01C7/028
摘要： A chip PTC thermistor comprising a conductive polymer having PTC properties, a first outer electrode, a second outer electrode, one or more inner electrodes sandwiched between the conductive polymer, a first electrode electrically directly coupled with the first outer electrode, and a second electrode. The odd-numbered inner electrode among the one-or-more inner electrodes is directly coupled with the second electrode, while the even-numbered inner electrode, with the first electrode. When total number of the inner electrodes is an odd number the second outer electrode makes direct electrical contact with the first electrode, when it is an even number the second outer electrode makes direct electrical contact with the second electrode. Defining a distance from the odd-numbered inner electrode to the first electrode, or from the even-numbered inner electrode to the second electrode, as “a”, while a distance between the adjacent inner electrodes, or a distance between the inner electrode placed the most adjacent to the first outer electrode, or the second outer electrode, and the first outer electrode, or the second outer electrode, as “t”; the PTC thermistors are constituted so that a ratio a/t is within 3-6. The chip PTC thermistors in accordance with the present invention effectively prevent an overcurrent in large current circuits.
摘要翻译： 一种片状PTC热敏电阻，包括具有PTC性质的导电聚合物，第一外部电极，第二外部电极，夹在导电聚合物之间的一个或多个内部电极，与第一外部电极直接耦合的第一电极和第二电极。 一个或多个内部电极中的奇数内部电极与第二电极直接耦合，而偶数内部电极与第一电极直接耦合。 当内部电极的总数为奇数时，第二外部电极与第一电极直接电接触，当第二外部电极为偶数时，第二外部电极与第二电极直接电接触。 将从奇数编号的内部电极到第一电极或从偶数的内部电极到第二电极的距离定义为“a”，而相邻的内部电极之间的距离或放置的内部电极之间的距离 与第一外电极或第二外电极最相邻，第一外电极或第二外电极为“t”; PTC热敏电阻构成为a / t比在3-6以内。 根据本发明的芯片PTC热敏电阻有效地防止了大电流电路中的过电流。
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公开(公告)号：US06348852B1
公开(公告)日：2002-02-19
申请号：US09807180
申请日：2001-06-07
IPC分类号： H01C710
CPC分类号： H01C7/18 , H01C1/1406 , H01C7/021 , H01C7/027 , H01C17/006 , Y10T29/49082
摘要： The PTC thermistor chip of the present invention comprises a conductive polymer having PTC properties, a first outer electrode, a second outer layer electrode, not less than one inner electrode sandwiched between the conductive polymer, a first electrode electrically directly coupled with the first outer electrode, and a second electrode disposed electrically independently from the first electrode. When counting from one of the inner electrodes closest to the first outer layer electrode, and defining the inner layer electrode in a “n”th position as the “n”th inner electrode, the odd-numbered inner layer electrodes are directly coupled with the second electrode and the even-numbered inner layer electrodes, with the first electrode. In this PTC thermistor, the cross sections where the odd-numbered and even numbered inner electrodes are respectively in contact with the second and first electrodes are thicker than the other sections.
摘要翻译： 本发明的PTC热敏电阻芯片包括具有PTC特性的导电聚合物，第一外电极，第二外层电极，夹在导电聚合物之间的不少于一个内电极，与第一外电极电连接的第一电极 以及与第一电极电独立设置的第二电极。 当从最靠近第一外层电极的一个内部电极计数，并且将第n个内部电极中的内层电极限定为“n”个位置时，奇数编号的内层电极与 第二电极和偶数内层电极，与第一电极。 在该PTC热敏电阻中，奇数编号和偶数编号的内电极分别与第二电极和第一电极接触的横截面比其他部分厚。
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公开(公告)号：US06556123B1
公开(公告)日：2003-04-29
申请号：US09936191
申请日：2002-01-02
申请人： Toshiyuki Iwao , Junji Kojima , Akira Tanaka , Takashi Ikeda , Kiyoshi Ikeuchi
发明人： Toshiyuki Iwao , Junji Kojima , Akira Tanaka , Takashi Ikeda , Kiyoshi Ikeuchi
IPC分类号： H01C713
CPC分类号： H01C17/006 , H01C1/1406 , H01C1/146
摘要： A chip PTC thermistor is provided which is capable of increasing the rate of increase in resistance when an overcurrent is applied, thereby increasing the breakdown voltage. The PTC thermistor comprises: a first main electrode and a first sub-electrode disposed on a first face of a conductive polymer with PTC properties; a second main electrode and a second sub-electrode disposed on a second face of the conductive polymer, which is facing the first face; and first and second side electrode and disposed on side faces of the conductive polymer. Cut-off sections are provided to the vicinity of joints of the first main electrode and the first side electrode, and joints of the second main electrode and the second side electrode.
摘要翻译： 提供一种片式PTC热敏电阻器，其能够在施加过电流时提高电阻增加率，从而增加击穿电压。 PTC热敏电阻包括：第一主电极和第一子电极，其设置在具有PTC特性的导电聚合物的第一面上; 第二主电极和第二子电极，其设置在导电聚合物的面向第一面的第二面上; 以及第一和第二侧面电极，并设置在导电聚合物的侧面上。 切断部分设置在第一主电极和第一侧电极的接头附近，以及第二主电极和第二侧电极的接头处。
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公开(公告)号：US06441717B1
公开(公告)日：2002-08-27
申请号：US09647657
申请日：2000-12-15
IPC分类号： H01C710
CPC分类号： H01C17/006 , H01C1/1406 , H01C7/027 , H01C7/028 , H05K3/3442
摘要： A chip polymer PTC thermistor for surface mount assembly having a superior long-term connection reliability between side electrode and main and sub electrodes. The thermister comprises; a rectangular parallelepiped conductive polymer(11) having PTC properties; a first main electrode(12a) and a first sub electrode(12b) disposed on a first face of the conductive polymer; a second main electrode(12c) and a second sub electrode(12d) disposed on a second face opposite the first face of the conductive polymer; and first and second side electrodes(13a,13b) folding around and over the entire surface of side faces of the conductive polymer, the side electrodes electrically coupling the electrodes disposed on the two faces of the conductive polymer, and a thickness of the side electrodes is not less than one twentieth of the distance between the first main electrode(12a) and the second sub electrode(12d) and the distance between the first sub electrode(12b) and second main electrode(12a,12c).
摘要翻译： 一种用于表面安装组件的芯片聚合物PTC热敏电阻，其在侧电极和主电极和辅助电极之间具有优异的长期连接可靠性。 热敏电阻包括 具有PTC性质的长方体形导电聚合物（11）; 设置在导电性聚合物的第一面上的第一主电极（12a）和第一副电极（12b） 第二主电极（12c）和第二副电极（12d），设置在与导电聚合物的第一面相对的第二面上; 以及在导电聚合物的侧面的整个表面上折叠的第一和第二侧电极（13a，13b），电连接设置在导电聚合物的两个面上的电极的侧电极和侧电极的厚度 不小于第一主电极（12a）和第二副电极（12d）之间的距离的二十分之一以及第一子电极（12b）和第二主电极（12a，12c）之间的距离。
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公开(公告)号：US06481094B1
公开(公告)日：2002-11-19
申请号：US09508062
申请日：2000-04-21
申请人： Takashi Ikeda , Kiyoshi Ikeuchi , Koichi Morimoto , Junji Kojima
发明人： Takashi Ikeda , Kiyoshi Ikeuchi , Koichi Morimoto , Junji Kojima
IPC分类号： H01C702
CPC分类号： H01C17/006 , H01C1/1406 , H01C7/027 , H01C17/02 , Y10T29/49082 , Y10T29/49085 , Y10T29/49099 , Y10T29/49787
摘要： A method of manufacturing a chip PTC thermistor utilizes a piece of conductive polymer having a PTC characteristic and metal foils formed by patterning and provided on the upper and the lower sides of the piece under pressure integrally into a sheet, making a hole part in the sheet, applying a protective coating serving as plating resist to upper and lower sides of the sheet, forming an electrode on the sheet by electroplating, and cutting the sheet into a chip. The protective coating is made of a material applicable at a temperature equal to or lower than the melting point of the conductive polymer. The processing temperatures at the step from the step of making a hole part in the sheet to the pre-processing step of the step of forming an electrode by electroplating on the sheet are not above the melting point of the conductive polymer.
摘要翻译： 一种片状PTC热敏电阻的制造方法利用一种具有PTC特性的导电聚合物和通过图案化形成的金属箔，并将其设置在片材的上下两侧，一体地压入片材中，在片材中形成孔部分 在片材的上下侧涂敷作为电镀抗蚀剂的保护层，通过电镀在片材上形成电极，将片材切断成芯片。 保护涂层由适用于等于或低于导电聚合物熔点的温度的材料制成。 从片材中的孔部分的步骤到通过电镀在片材上形成电极的步骤的预处理步骤的步骤的处理温度不高于导电聚合物的熔点。
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公开(公告)号：US07183892B2
公开(公告)日：2007-02-27
申请号：US10893277
申请日：2004-07-19
申请人： Junji Kojima , Kohichi Morimoto , Takashi Ikeda , Toshiyuki Iwao
发明人： Junji Kojima , Kohichi Morimoto , Takashi Ikeda , Toshiyuki Iwao
IPC分类号： H01C7/10
CPC分类号： H01C17/006 , H01C1/1406 , H01C7/02 , H01C7/027 , Y10T29/49082 , Y10T29/49083 , Y10T29/49085 , Y10T29/49099
摘要： Chip PTC thermistors that can easily be inspected the soldered portions after it is mounted on a printed circuit board and that can be used in a flow soldering process, and methods of making same. A chip PTC thermistor of the present invention includes: a first main electrode and a first sub-electrode on first surface of a cuboidal form conductive polymer having the PTC characteristics, a second main electrode and a second sub-electrode on a second surface opposite the first surface of the conductive polymer. Between the first sub-electrode and the second sub-electrode, and between the first sub-electrode and the second main electrode are electrically connecting with a first side electrode and a second side electrode, respectively.
摘要翻译： 芯片PTC热敏电阻器可以在将焊接部件安装在印刷电路板上并且可以用于流动焊接工艺中以及其制造方法之后容易地检查焊接部分。 本发明的片式PTC热敏电阻器包括：具有PTC特性的立方形导电聚合物的第一表面上的第一主电极和第一子电极，与第二主电极相对的第二表面上的第二主电极和第二子电极 导电聚合物的第一表面。 在第一子电极和第二子电极之间以及第一子电极和第二主电极之间分别与第一侧电极和第二侧电极电连接。
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公开(公告)号：US06782604B2
公开(公告)日：2004-08-31
申请号：US09462439
申请日：2000-02-16
申请人： Junji Kojima , Kohichi Morimoto , Takashi Ikeda , Toshiyuki Iwao
发明人： Junji Kojima , Kohichi Morimoto , Takashi Ikeda , Toshiyuki Iwao
IPC分类号： H01C702
CPC分类号： H01C17/006 , H01C1/1406 , H01C7/02 , H01C7/027 , Y10T29/49082 , Y10T29/49083 , Y10T29/49085 , Y10T29/49099
摘要： Chip PTC thermistors that can easily be inspected the soldered portions after it is mounted on a printed circuit board and that can be used in a flow soldering process, and methods of making same. A chip PTC thermistor of the present invention includes: a first main electrode and a first sub-electrode on first surface of a cuboidal form conductive polymer having the PTC characteristics, a second main electrode and a second sub-electrode on a second surface opposite the first surface of the conductive polymer. Between the first sub-electrode and the second sub-electrode, and between the first sub-electrode and the second main electrode are electrically connecting with a first side electrode and a second side electrode, respectively.
摘要翻译： 芯片PTC热敏电阻器可以在将焊接部件安装在印刷电路板上并且可以用于流动焊接工艺中以及其制造方法之后容易地检查焊接部分。 本发明的片式PTC热敏电阻器包括：具有PTC特性的立方形导电聚合物的第一表面上的第一主电极和第一子电极，与第二主电极相对的第二表面上的第二主电极和第二子电极 导电聚合物的第一表面。 在第一子电极和第二子电极之间以及第一子电极和第二主电极之间分别与第一侧电极和第二侧电极电连接。
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公开(公告)号：US6157289A
公开(公告)日：2000-12-05
申请号：US147790
申请日：1999-03-09
CPC分类号： H01C7/021
摘要： The invention presents a PTC thermistor which is high in adhesive strengths of inner- and outer-layer electrodes composed of metallic foil respectively stuck to conductive sheets, and has a larger current breaking characteristic. It contains a laminated body (13) which is formed by alternately laminating a plurality of conductive sheets (14) and an inner-layer electrode (11) composed of metallic foil having first plated layers (12) so that the conductive sheets (14) can become the outermost layers, an outer-layer electrode (18) positioned at the outermost layer of the laminated body (13), and having a second plated layer (16) on a side facing the inner-layer electrode (11), and side-face electrode layers 20) disposed at facing sides of the laminated body 913) for connecting electrically the inner-layer electrode (11) and outer-layer electrode (18).
摘要翻译： PCT No.PCT / JP97 / 03357 Sec。 371日期1999年3月9日 102（e）1999年3月9日PCT 1997年9月22日PCT公布。 出版物WO98 / 日期：1998年3月26日本发明提供一种PTC热敏电阻，该PTC热敏电阻具有高分子量的内层和外层电极，金属箔分别粘在导电片上，具有较大的断流特性。 它包含层叠体（13），其通过交替层叠多个导电片（14）和由具有第一镀层（12）的金属箔构成的内层电极（11）形成，使得导电片（14） 可以成为最外层，位于层叠体（13）的最外层的外层电极（18），并且在面向内层电极（11）的一侧具有第二镀层（16），以及 设置在层叠体913的相对侧的侧面电极层20），用于将内层电极（11）和外层电极（18）电连接。
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公开(公告)号：US06188308B1
公开(公告)日：2001-02-13
申请号：US09331715
申请日：1999-07-23
IPC分类号： H01C713
CPC分类号： H01C7/028 , Y10T29/49085 , Y10T29/49126
摘要： The present invention aims to provide a PTC thermister which uses a conductive polymer having a positive temperature coefficient and has a high withstand voltage and high reliability and in which no failure in electrical connection occurs in side electrode even when a mechanical stress occurs due to the thermal shock by repeated thermal expansion of the conductive polymer sheet. It also aims to provide a method to manufacture the above PTC thermister. To achieve the above purpose, the PTC thermister of the present invention comprises (1) a laminated body made by alternately laminating conductive polymer sheets and inner electrodes, (2) outer electrodes disposed on tops and bottoms of said laminated body and (3) multi-layered side electrodes disposed at the center of both sides of said laminated body and is electrically coupled with said inner electrodes and said outer electrodes. And, a side of laminated body having an area on which a side electrode layer is formed and areas on which side electrode is not formed. A method for manufacturing a PTC thermistor comprises the steps of (1) forming a laminated body by sandwiching a conductive polymer sheet with metal foils, and then integrating them by heat pressing, (2) sandwiching the laminated body and conductive polymer sheets from the top and bottom by metal foils, and integrating them by heat pressing. A multi-layered PTC thermistor is obtained by repeating above processes.
摘要翻译： 本发明的目的在于提供一种PTC热敏电阻器，其使用具有正温度系数且具有高耐受电压和高可靠性的导电聚合物，并且即使当由于热而产生机械应力时也不会在侧电极中发生电连接故障 导电聚合物片反复热膨胀的冲击。 它还旨在提供一种制造上述PTC热敏电阻的方法。 为了实现上述目的，本发明的PTC热敏电阻器包括（1）通过交替层叠导电性聚合物片材和内部电极而制成的层叠体，（2）设置在所述层叠体的顶部和底部的外部电极，（3）多层 设置在所述层叠体的两侧的中心的侧面电极，与所述内部电极和所述外部电极电连接。 并且，具有形成侧面电极层的区域的层叠体的一侧和不形成侧面电极的区域。 一种制造PTC热敏电阻的方法包括以下步骤：（1）通过用金属箔夹住导电聚合物片形成层压体，然后通过热压将它们集成，（2）从顶部夹入层压体和导电聚合物片 并用金属箔底部，并通过热压整合。 通过重复上述方法获得多层PTC热敏电阻。
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公开(公告)号：US06438821B1
公开(公告)日：2002-08-27
申请号：US09480494
申请日：2000-01-11
IPC分类号： H01C704
CPC分类号： H01C7/028 , Y10T29/49085 , Y10T29/49126
摘要： The present invention aims to provide a PTC thermister which uses a conductive polymer having a positive temperature coefficient and has a high withstand voltage and high reliability and in which no failure in electrical connection occurs in side electrode even when a mechanical stress occurs due to the thermal shock by repeated thermal expansion of the conductive polymer sheet. It also aims to provide a method to manufacture the above PTC thermister. To achieve the above purpose, the PTC thermister of the present invention comprises (1)a laminated body made by alternately laminating conductive polymer sheets and inner electrodes, (2) outer electrodes disposed on tops and bottoms of said laminated body and (3) multi-layered side electrodes disposed at the center of both sides of said laminated body and is electrically coupled with said inner electrodes and said outer electrodes. And, a side of laminated body having an area on which a side electrode layer is formed and areas on which side electrode is not formed. A method for manufacturing a PTC thermistor comprises the steps of (1) forming a laminated body by sandwiching a conductive polymer sheet with metal foils, and then integrating them by heat pressing, (2) sandwiching the laminated body and conductive polymer sheets from the top and bottom by metal foils, and integrating them by heat pressing. A multi-layered PTC thermistor is obtained by repeating above processes.
摘要翻译： 本发明的目的在于提供一种PTC热敏电阻器，其使用具有正温度系数且具有高耐受电压和高可靠性的导电聚合物，并且即使当由于热而产生机械应力时也不会在侧电极中发生电连接故障 导电聚合物片反复热膨胀的冲击。 它还旨在提供一种制造上述PTC热敏电阻的方法。 为了实现上述目的，本发明的PTC热敏电阻器包括（1）通过交替层叠导电性聚合物片材和内部电极而制成的层叠体，（2）设置在所述层叠体的顶部和底部的外部电极，（3）多层 设置在所述层叠体的两侧的中心的侧面电极，与所述内部电极和所述外部电极电连接。 并且，具有形成侧面电极层的区域的层叠体的一侧和不形成侧面电极的区域。 一种制造PTC热敏电阻的方法包括以下步骤：（1）通过用金属箔夹住导电聚合物片形成层压体，然后通过热压将它们集成，（2）从顶部夹入层压体和导电聚合物片 并用金属箔底部，并通过热压整合。 通过重复上述方法获得多层PTC热敏电阻。
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