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    • 53. 发明申请
    • OVERVOLTAGE PROTECTION ELEMENT
    • 过电压保护元件
    • US20120229246A1
    • 2012-09-13
    • US13508219
    • 2010-11-05
    • Christian DeppingRainer DurthGernot FinisThomas MeyerAndreas Christ
    • Christian DeppingRainer DurthGernot FinisThomas MeyerAndreas Christ
    • H01H71/14
    • H01H37/36H01C7/12H01C7/126H01H1/20H01H37/04H01H37/46H01H37/74H01H37/767H01H2037/769H01T1/14
    • An overvoltage protection element with a housing, an overvoltage-limiting component arranged in the housing, and with two connection elements for electrically connecting the overvoltage protection element to the current or signal path to be protected, wherein, normally, the connection elements are each in electrically conductive contact with a pole of the overvoltage-limiting component. Reliable and effective electrical connection in the normal state and reliable isolation of a defective overvoltage-limiting component are ensured by the fact that a thermally expandable material is arranged within the housing in a way that, in the event of thermal overloading of the overvoltage-limiting component, the position of the overvoltage-limiting component is changed by expansion of the thermally expandable material relative to the position of the connection elements in a way that causes at least one pole of the overvoltage-limiting component to be out of electrically conductive contact with the corresponding connection element.
    • 具有壳体的过电压保护元件,布置在壳体中的过电压限制部件,以及用于将过电压保护元件电连接到待保护的电流或信号路径的两个连接元件,其中通常,连接元件分别位于 与过电压限制部件的极导电接触。 通过以下事实来确保正常状态下的可靠和有效的电连接以及有缺陷的过电压限制部件的可靠隔离:将热可膨胀材料布置在壳体内,使得在过压限制 通过使可热膨胀材料相对于连接元件的位置的膨胀以过电压限制部件的至少一极极脱离导电接触的方式改变过电压限制部件的位置 相应的连接元素。