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公开(公告)号：US07400491B2
公开(公告)日：2008-07-15
申请号：US10588258
申请日：2005-02-02
IPC分类号： H01G2/10
CPC分类号： H01G9/035 , H01G9/10 , H01G9/145 , H01G11/52 , H01G11/54 , Y02E60/13 , Y10T29/41 , Y10T29/417
摘要： Disclosed is an aluminum electrolytic capacitor, which comprises a capacitor element prepared by rolling an anode foil and a cathode foil together with a separator and impregnating them with a driving electrolyte, an anode lead electrically connected to the anode foil, a cathode lead electrically connected to the cathode foil, a tubular metal case having one closed end and the other open end and containing the capacitor element, and a sealing member hermetically closing the open end, wherein the anode and cathode leads are bent along an outer surface of the sealing member. In this aluminum electrolytic capacitor, the sealing member is comprised of a rubber composition containing a rubber component having, as a constituent, a butyl rubber prepared by crosslinking an isobutylene-isoprene copolymer having an unsaturation degree of 1.2 to 2.5 mol %, with an alkyl-phenol-formaldehyde resin, and 100 to 200 mass parts of reinforcing filler with respect to 100 mass parts of the rubber component. The rubber composition has a Wallace hardness according to International Rubber Hardness Degree (IRHD) of 80 Hw or more, and a tensile elastic modulus at a solder reflow temperature of 4 N/mm2 or more.
摘要翻译： 公开了一种铝电解电容器，其包括通过将阳极箔和阴极箔与隔膜一起卷绕并用驱动电解质浸渍它们制备的电容器元件，电连接到阳极箔的阳极引线，电连接到 阴极箔，具有一个封闭端的管状金属壳体和另一个开口端并且容纳电容器元件，密封构件密封地封闭开口端，其中阳极和阴极引线沿着密封构件的外表面弯曲。 在这种铝电解电容器中，密封构件由含有橡胶组分的橡胶组合物组成，该橡胶组合物具有通过将不饱和度为1.2〜2.5摩尔％的异丁烯 - 异戊二烯共聚物与烷基交联而制备的丁基橡胶， 苯酚 - 甲醛树脂，相对于100质量份的橡胶组分为100〜200质量份的增强填料。 橡胶组合物具有根据国际橡胶硬度（IRHD）为80Hw以上的华氏硬度，以及4N / mm 2以上的焊锡回流温度下的拉伸弹性模量。
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公开(公告)号：US06307732B1
公开(公告)日：2001-10-23
申请号：US09417116
申请日：1999-10-13
IPC分类号： H01G9042
CPC分类号： H01G9/022
摘要： The present invention provides a highly reliable aluminum electrolytic capacitor which has no flash point and shows little change or degradation in external appearance and properties. The water content of electrolytic solution of the electrolytic capacitor of this invention is 20-90 wt % and one or more following compounds are included as main electrolytes in the electrolytic solution; ammonium formate, ammonium acetate, ammonium lactate, ammonium glycolate, ammonium oxalate, ammonium succinate, ammonium malonate, ammonium adipate, ammonium benzoate, ammonium glutarate, and ammonium azelate. The electrolytic solution also contains not less than 1 wt % of one or more compounds selected from organic carboxylic acids with a particular structure and ammonium salts of these organic acids. The melting point of the electrolytic solution is −10° C. and below, the chlorine content of a sealing material of the capacitor is not more than 300 ppm to the weight of the sealing material. The impedance ratio of 20° C. to −10° C. at 100 kHz of the aluminum electrolytic capacitor is 4 or less. The present invention can provide a highly reliable aluminum electrolytic capacitor of rated voltage of under 100V, which achieves superior impedance and low temperature properties, and has little risk of ignition even when the electrolytic solution is released.
摘要翻译： 本发明提供一种高可靠性的铝电解电容器，其不具有闪点并且外观和性能几乎没有变化或降低。 本发明的电解电容器的电解液的含水量为20〜90重量％，在电解液中含有以下化合物作为主要电解质， 甲酸铵，乙酸铵，乳酸铵，乙醇酸铵，草酸铵，琥珀酸铵，丙二酸铵，己二酸铵，苯甲酸铵，戊二酸铵和壬二酸铵。 电解液还含有不少于1重量％的一种或多种选自具有特定结构的有机羧酸和这些有机酸的铵盐的化合物。 电解液的熔点为-10℃以下，电容器的密封材料的氯含量相对于密封材料的重量为300ppm以下。 铝电解电容器的100kHz的20℃〜-10℃的阻抗比为4以下。 本发明可提供额定电压低于100V的高可靠性铝电解电容器，其具有优异的阻抗和低温性能，并且即使在电解液被释放时也几乎没有点火风险。
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公开(公告)号：US20070115612A1
公开(公告)日：2007-05-24
申请号：US10566324
申请日：2004-07-28
摘要： For realizing an electronic part of high reliability excelling in sealer airtightness and mountability, from which the evaporation of driving electrolyte is less, there is provided an aluminum electrolytic capacitor comprising bottomed cylindrical metal case (12) accommodating capacitor element (11) impregnated with a driving electrolyte and elastic sealer (13) closing the opening of the metal case (12), wherein the sealer (13) is composed mainly of an ethylene-propylene-diene terpolymer rubber (EPDM) of 30 to 70 wt.% ethylene content and has a glass transition temperature ranging from −70 to −30° C.
摘要翻译： 为了实现具有优异的密封气密性和安装性的电子部件，其驱动电解质的蒸发较少，提供了一种铝电解电容器，其包括用于容纳电容器元件（11）的有底圆筒形金属外壳（12），其浸渍有驱动 电解质和弹性密封剂（13），其封闭金属壳体（12）的开口，其中密封剂（13）主要由乙烯含量为30至70重量％的乙烯 - 丙烯 - 二烯三元共聚物橡胶（EPDM）组成，并且具有 玻璃化转变温度范围为-70〜-30℃
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公开(公告)号：US20070165362A1
公开(公告)日：2007-07-19
申请号：US10588258
申请日：2005-02-02
CPC分类号： H01G9/035 , H01G9/10 , H01G9/145 , H01G11/52 , H01G11/54 , Y02E60/13 , Y10T29/41 , Y10T29/417
摘要： Disclosed is an aluminum electrolytic capacitor, which comprises a capacitor element prepared by rolling an anode foil and a cathode foil together with a separator and impregnating them with a driving electrolyte, an anode lead electrically connected to the anode foil, a cathode lead electrically connected to the cathode foil, a tubular metal case having one closed end and the other open end and containing the capacitor element, and a sealing member hermetically closing the open end, wherein the anode and cathode leads are bent along an outer surface of the sealing member. In this aluminum electrolytic capacitor, the sealing member is comprised of a rubber composition containing a rubber component having, as a constituent, a butyl rubber prepared by crosslinking an isobutylene-isoprene copolymer having an unsaturation degree of 1.2 to 2.5 mol %, with an alkyl-phenol-formaldehyde resin, and 100 to 200 mass parts of reinforcing filler with respect to 100 mass parts of the rubber component. The rubber composition has a Wallace hardness according to International Rubber Hardness Degree (IRHD) of 80 Hw or more, and a tensile elastic modulus at a solder reflow temperature of 4 N/mm2 or more.
摘要翻译： 公开了一种铝电解电容器，其包括通过将阳极箔和阴极箔与隔膜一起卷绕并用驱动电解质浸渍它们制备的电容器元件，电连接到阳极箔的阳极引线，电连接到 阴极箔，具有一个封闭端的管状金属壳体和另一个开口端并且容纳电容器元件，密封构件密封地封闭开口端，其中阳极和阴极引线沿着密封构件的外表面弯曲。 在这种铝电解电容器中，密封构件由含有橡胶组分的橡胶组合物组成，该橡胶组合物具有通过将不饱和度为1.2〜2.5摩尔％的异丁烯 - 异戊二烯共聚物与烷基交联而制备的丁基橡胶， 苯酚 - 甲醛树脂，相对于100质量份的橡胶组分为100〜200质量份的增强填料。 橡胶组合物具有根据国际橡胶硬度（IRHD）为80Hw以上的华氏硬度，以及4N / mm 2以上的焊锡回流温度下的拉伸弹性模量。
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公开(公告)号：US06507481B2
公开(公告)日：2003-01-14
申请号：US10038767
申请日：2002-01-08
申请人： Koichiro Minato , Hiroshi Kurimoto , Junji Yamane
发明人： Koichiro Minato , Hiroshi Kurimoto , Junji Yamane
IPC分类号： H01G908
CPC分类号： H01G9/10 , H01G2/06 , Y10T29/417
摘要： The electronic component of the present invention includes a case having an opening, an electronic component element and electrolytic solution disposed in the case, and a sealing member disposed so as to seal the opening. The sealing member has elasticity and is formed of a cross-linked structure of compound. The compound contains butyl rubber polymer as main component, phenol-based additive, and silane-based additive. Accordingly, the sealing member is improved in air-tightness, and the volatilization of the electrolytic solution becomes lessened. Further, an electronic component having such sealing member ensures excellent mounting ability. As a result, it is possible to obtain an electronic component capable of assuring excellent reliability for a long period of time even in a high temperature atmosphere and under high-temperature high humidity conditions.
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