Polymer concrete electrical insulation
    1.
    发明授权
    Polymer concrete electrical insulation 失效
    聚合物混凝土电绝缘

    公开(公告)号:US08545977B2

    公开(公告)日:2013-10-01

    申请号:US12756464

    申请日:2010-04-08

    摘要: Polymer concrete electrical insulation including a hardened epoxy resin composition filled with an electrically non-conductive inorganic filler compositions. The polymer concrete electrical insulation system optionally may contain additives. The epoxy resin composition is based on a cycloaliphatic epoxy resin. The inorganic filler composition can be present within the range of about 76% by weight to about 86% by weight, calculated to the total weight of the polymer concrete electrical insulation system. The inorganic filler composition includes a uniform mixture of (i) an inorganic filler with an average grain size within the range of 1 micron (μm) to 100 micron (μm) [component c(i)], and (ii) an inorganic filler with an average grain size within the range of 0.1 mm (100 micron) to 2 mm [component c(ii)]. The inorganic filler with an average grain size within the range of 1 micron (μm) to 100 micron (μm) [component c(i)] can be present in an amount within the range of 22% to 42%, calculated to the total weight of the polymer concrete electrical insulation system; and (e) the inorganic filler with an average grain size within the range of 0.1 mm to 2 mm [component c(ii)] is present within the range of 41% to 61% by weight, calculated to the total weight of the polymer concrete electrical insulation; and method of producing said electrical insulation.

    摘要翻译: 聚合物混凝土电气绝缘包括填充有非导电无机填料组合物的硬化环氧树脂组合物。 聚合物混凝土电绝缘​​系统任选地可以含有添加剂。 环氧树脂组合物基于脂环族环氧树脂。 按照聚合物混凝土电气绝缘系统的总重量,无机填料组合物可以在约76重量%至约86重量%的范围内存在。 无机填料组合物包括(i)平均粒度在1微米(mum)至100微米(母体)[组分c(i)]范围内的无机填料的均匀混合物,和(ii)无机填料 平均粒度在0.1mm(100微米)〜2mm的范围内[成分c(ii)]]。 平均晶粒尺寸在1微米(mum)至100微米(母体)[成分c(i)]范围内的无机填料可以以22%至42%的范围内的量存在,计算为总计 聚合物混凝土电气绝缘体系重量; 和(e)平均粒度在0.1mm至2mm范围内的无机填料[组分c(ii)]存在于聚合物总重量的41%至61%的范围内 混凝土电绝缘​​; 以及制造所述电绝缘体的方法。

    DEVICE WITH OVERVOLTAGE PROTECTION AND METHOD FOR ITS TESTING
    2.
    发明申请
    DEVICE WITH OVERVOLTAGE PROTECTION AND METHOD FOR ITS TESTING 有权
    具有过电压保护的器件及其测试方法

    公开(公告)号:US20120153976A1

    公开(公告)日:2012-06-21

    申请号:US13326942

    申请日:2011-12-15

    IPC分类号: G01R31/327 G01R31/02

    摘要: Exemplary embodiments are directed to a device with overvoltage protection that includes a varistor which can be connected by a first connection via a first line to high-voltage potential in a circuit arrangement, while a second connection is connected to ground via a second line. Furthermore, an additional impedance is provided, which can be connected between the second connection and ground or the first connection and the high voltage, or is mounted fixed in this position. The corresponding line can be interrupted by a switching arrangement. In order to test the withstand voltage of the circuit arrangement, at least one of the first and second line is interrupted and an additional impedance is inserted. A test voltage is applied to the circuit arrangement. After the overvoltage test, the interruption in at least one of the first and second lines is removed again.

    摘要翻译: 示例性实施例涉及具有过压保护的装置,其包括可通过第一线路通过第一线路连接到电路装置中的高压电位的变阻器,而第二连接通过第二线路连接到地。 此外,提供了另外的阻抗,其可以连接在第二连接和地之间或第一连接和高电压之间,或者被安装在该位置。 相应的线路可以被切换装置中断。 为了测试电路装置的耐受电压,第一和第二线路中的至少一个被中断并且插入另外的阻抗。 测试电压被施加到电路装置。 在过电压测试之后,再次去除第一和第二行中的至少一个的中断。

    Laser-irradiated metallized electroceramic
    3.
    发明申请
    Laser-irradiated metallized electroceramic 有权
    激光照射金属化电瓷

    公开(公告)号:US20050016969A1

    公开(公告)日:2005-01-27

    申请号:US10885877

    申请日:2004-07-08

    摘要: The manufacturing method for an electroceramic component (1), for example a varistor (1), comprises a laser irradiation of a part (5; 6) of the surface of an electroceramic body (2) before a metallization (3; 4) is applied to the part (5; 6) of the surface. By means of the laser irradiation it is possible to produce a micro-roughness and/or a chemical modification of the surface which permits good adhesion of the metallization, and it is possible to reduce or eliminate areas of unevenness or waviness of that part (5; 6) of the surface of the electroceramic body (2) which is to be metallized. In addition, improved transverse conductivity can be produced, by virtue of which a low contact resistance and a very homogeneous current distribution is achieved, in particular near to the metallization (3; 4). In addition it is possible to remove residues which originate in particular from a sinter support or from the application of a passivation layer. After the laser irradiation, the electroceramic body advantageously has a border (9) which adjoins the part (5; 6) of the surface and which is not laser-irradiated. The laser beam can advantageously be pulsed and focused.

    摘要翻译: 用于电瓷部件(1)的制造方法,例如变阻器(1)包括在金属化(3; 4)之前的电陶瓷体(2)的表面的部分(5; 6)的激光照射 施加到表面的部分(5; 6)上。 通过激光照射,可以产生表面的微观粗糙度和/或化学改性,其允许金属化的良好粘合,并且可以减少或消除该部分的不均匀或波纹的区域(5 ; 6)要被金属化的电陶瓷体(2)的表面。 此外,可以产生改善的横向电导率,由此实现了低接触电阻和非常均匀的电流分布,特别是在金属化(3; 4)附近。 此外,可以除去特别是由烧结体支持体产生的残留物,或者去除钝化层的残留物。 在激光照射之后,电陶瓷体有利地具有与表面的部分(5; 6)相邻并且不被激光照射的边界(9)。 激光束可以有利地被脉冲和聚焦。

    Fuse with overstoichiometric amount of oxidant
    4.
    发明授权
    Fuse with overstoichiometric amount of oxidant 失效
    具有化学计量量的氧化剂的保险丝

    公开(公告)号:US06515570B2

    公开(公告)日:2003-02-04

    申请号:US09731931

    申请日:2000-12-08

    IPC分类号: H01H8504

    摘要: A fuse has a fuse element (6), composed of silver, with constrictions (7) which follow one another at regular intervals, and which fuse element makes contact with a combustible element (8), preferably over its entire length. The combustible element (8) is composed of a combustion compound, which is essentially of a fuel such as guanidine or a guanidine derivative and a metal such as Mg or Al and an oxidant such as KNO3, NaNO3, NH4NO3, KClO4, NaClO4, KMnO4, the proportion of which is overstoichiometric by a factor of at least 1.1, and preferably of at least 10. The combustible compound also preferably contains a binding agent such as paraffin, a thermoplastic or an elastomer, so that it can be extruded. It has an ignition temperature of between 160° C. and 260° C. and emits more than 200 J/g of heat, so that it ignites even in the event of small overcurrents and melts the entire length of the fuse element (6).

    摘要翻译: 保险丝具有由银构成的熔丝元件(6),具有以规则间隔彼此相邻的收缩部(7),并且该熔丝元件优选地在其整个长度上与可燃元件(8)接触。 可燃性元件(8)由燃烧化合物组成,燃烧化合物基本上由诸如胍或胍衍生物的燃料和诸如Mg或Al的金属和氧化剂如KNO 3,NaNO 3,NH 4 NO 3,KClO 4,NaClO 4,KMnO 4 ,其比例超过化学计量值至少为1.1,优选至少为10.可燃性化合物还优选含有粘合剂,例如石蜡,热塑性弹性体或弹性体,使得其可以被挤出。 它的点火温度介于160℃和260℃之间,并且发出超过200J / g的热量,使得即使在小的过电流并且熔化熔丝元件(6)的整个长度的情况下它也点燃, 。

    Electrical resistance element and use of this resistance element in a
current limiter
    5.
    发明授权
    Electrical resistance element and use of this resistance element in a current limiter 失效
    电阻元件和电流限制器中的这种电阻元件的使用

    公开(公告)号:US5602520A

    公开(公告)日:1997-02-11

    申请号:US291903

    申请日:1994-08-18

    CPC分类号: H01C7/027 H01C7/13

    摘要: The electrical resistance element (10) includes a resistance body (3), which is arranged between two plane-parallel, pressurized electrodes (1, 2), has PTC behavior and comprises a polymer matrix and two filler components of electrically conducting particles embedded into the polymer matrix (4).When a short-circuit current occurs, the resistivity of the resistance body (3) changes abruptly above a temperature limit value in a surface layer resting on the electrodes and containing at least a first of the two filler components. A second of the two filler components is selected such that a composite material containing at least the polymer matrix and the second filler component has PTC behavior, with an abruptly changing behavior greater by at least one order of magnitude in comparison with the surface layer. At the same time, this composite material has a resistivity which is lower by at least one order of magnitude than a composite material formed by the polymer matrix and the first filler component.The resistance element has a high nominal current carrying capacity and can limit large short-circuit currents permanently.

    摘要翻译: 电阻元件(10)包括布置在两个平行平行的加压电极(1,2)之间的电阻体(3),具有PTC特性,并且包括聚合物基体和两个嵌入到导电颗粒中的填充组分 聚合物基体(4)。 当发生短路电流时,电阻体(3)的电阻率突然高于放置在电极上的表层中的温度极限值,并且至少包含两个填料组分中的第一个。 选择两个填料组分中的第二个,使得至少含有聚合物基质和第二填料组分的复合材料具有PTC行为,与表面层相比,其突变变化行为大至少一个数量级。 同时,该复合材料的电阻率比由聚合物基体和第一填料组分形成的复合材料低至少一个数量级。 电阻元件具有很高的额定电流承载能力,可以永久地限制大的短路电流。

    Current-limiting component
    6.
    发明授权
    Current-limiting component 失效
    限流组件

    公开(公告)号:US5414403A

    公开(公告)日:1995-05-09

    申请号:US70937

    申请日:1993-06-04

    CPC分类号: H01C7/027 H01C7/13

    摘要: A current-limiting component having an electrical resistance body arranged between two contact terminals. The resistance body contains a first resistance material having PTC behavior. Below a limit temperature, the first resistance material has a low cold resistivity and at least one current-carrying path extending between the two contact terminals. Above the limit temperature, the first resistance material has a high hot resistivity compared with its cold resistivity. The current-limiting component has uniform switching capability and high rated current-carrying capacity despite simple and inexpensive construction. The resistance body additionally contains second resistance material having a resistivity which is between the cold resistivity and the hot resistivity of the first resistance material. The second resistance material is in intimate electrical contact with the first resistance material and forms at least one resistance path connected in parallel with the current-carrying path.

    摘要翻译: 一种限流部件,其具有布置在两个接触端子之间的电阻体。 电阻体包含具有PTC行为的第一电阻材料。 在极限温度以下,第一电阻材料具有低的冷电阻率和在两个接触端子之间延伸的至少一个载流路径。 在极限温度以上时,第一电阻材料与其电阻率相比具有高的热电阻率。 尽管简单廉价的结构,限流部件具有均匀的开关能力和高额定载流能力。 电阻体另外包含具有在第一电阻材料的冷电阻率和热电阻率之间的电阻率的第二电阻材料。 第二电阻材料与第一电​​阻材料紧密地电接触并且形成与导流路径平行连接的至少一个电阻路径。

    ELECTRICAL INSULATION SYSTEM
    7.
    发明申请
    ELECTRICAL INSULATION SYSTEM 审中-公开
    电绝缘系统

    公开(公告)号:US20130203897A1

    公开(公告)日:2013-08-08

    申请号:US13566580

    申请日:2012-08-03

    IPC分类号: C08K3/22 C08K3/36

    摘要: Electrical insulation system with improved electrical breakdown strength, including a hardened polymer component having incorporated therein a filler material and a nano-scale sized filler material. The hardened polymer component is selected from epoxy resin compositions, polyesters, polyamides, polybutylene terephthalate, polyurethanes and polydicyclo-pentadiene. The filler material has an average particle size within the range of 1 μm-500 μm, and is present in a quantity within the range of 40%-65% by weight, calculated to the total weight of the insulation system. The nano-scale sized filler material is a pretreated nano-scale sized filler material, having been produced by a sol-gel process. The nano-scale sized filler material is present within the electrical insulation system in an amount of about 1%-20% by weight, calculated to the weight of the filler material present in the electrical insulation system.

    摘要翻译: 具有改善的电击穿强度的电绝缘系统,包括其中掺入填充材料的硬化聚合物组分和纳米尺寸的填充材料。 硬化的聚合物组分选自环氧树脂组合物,聚酯,聚酰胺,聚对苯二甲酸丁二醇酯,聚氨酯和聚二环戊二烯。 填充材料的平均粒径在1〜500μm的范围内,以绝缘体系的总重量计,其量在40〜65重量%的范围内。 纳米尺寸的填充材料是经过溶胶 - 凝胶法生产的经预处理的纳米级填料。 纳米尺寸的填充材料以电绝缘系统中存在的填充材料的重量计,其量为约1重量%-20重量%,存在于电绝缘系统内。

    Microvaristor-based overvoltage protection
    10.
    发明授权
    Microvaristor-based overvoltage protection 有权
    基于微电阻的过电压保护

    公开(公告)号:US07868732B2

    公开(公告)日:2011-01-11

    申请号:US12255831

    申请日:2008-10-22

    IPC分类号: H01C7/10

    摘要: The disclosure relates to an overvoltage protection means containing ZnO microvaristor particles for protecting electrical elements and a method to produce the means. Single microvaristor particles are placed in an arrangement having a monolayer thickness and are electrically coupled to the electrical element to protect it against overvoltages. Embodiments, among other things, relate to: 1-dimensional or 2-dimensional arrangements of microvaristor particles; placement of single microvaristors on a carrier; the carrier being planar or string-like, being structured, being a sticky tape, having fixation means for fixing the microvaristors, or having electrical coupling means. The monolayered overvoltage protection means allows very tight integration and high flexibility in shaping and adapting it to the electric or electronic element. Furthermore, reduced capacitance and hence reaction times of overvoltage protection are achieved.

    摘要翻译: 本公开涉及一种含有用于保护电气元件的ZnO微电阻颗粒的过电压保护装置和一种产生该装置的方法。 单个微电阻颗粒被放置在具有单层厚度的布置中并且电耦合到电气元件以保护其抵抗过电压。 实施例尤其涉及:微电阻颗粒的一维或二维布置; 单个微电阻器放置在载体上; 该载体是平面的或绳状的,被构造成粘性带,具有用于固定微电阻器的固定装置,或具有电耦合装置。 单层过电压保护装置允许非常紧密的集成和高度的柔性,使其成型和适应电气或电子元件。 此外,实现了降低的电容,并因此实现了过电压保护的反应时间。