公开(公告)号：EP2677524A1

公开(公告)日：2013-12-25

申请号：EP12177955.7

申请日：2012-07-26

申请人： Raycap Corporation

发明人： Xepapas, Fotis ,  Giannelaki, Evaggelia ,  Kostakis, Gregoris ,  Politis, Zafiris ,  Samaras, Kostas

IPC分类号： H01C7/12 ,  H01T1/16

CPC分类号： H01C7/12 ,  H01C8/04

摘要： An overvoltage protection device includes first and second electrically conductive electrode members (130, 120) and a varistor member (110) formed of a varistor material (172) and electrically connected with each of the first and second electrode members. The overvoltage protection device has an integral fail-safe mechanism operative to electrically short circuit the first and second electrode members about the varistor member by fusing the meltable member (140) in the overvoltage protection device (134) by using an electric arc. The overvoltage protection device further includes an electrically insulating spacer member (144) electrically isolating the fusing metal member (140) from the electrodes; the electric arc disintegrates the spacer member and extends across the gap (G1, G3 and G2) to fuse the meltable/fusing member (140).

摘要翻译： 一种过电压保护装置包括第一和第二导电电极部件（130,120）和由非线性电阻材料（172）形成并与第一和第二电极部件中的每一个电连接的变阻器部件（110）。 过电压保护装置具有一体的故障保护机构，其通过使用电弧将可熔体（140）熔接在过电压保护装置（134）中，使第一和第二电极部件围绕变阻器部件电气短路。 所述过电压保护装置还包括将所述熔融金属构件（140）与所述电极电隔离的电绝缘隔离构件（144） 所述电弧使所述间隔件分解并延伸穿过所述间隙（G1，G3和G2）以熔化所述可熔融/熔融部件（140）。