发明名称 |
FUSIBLE ELEMENT, METHOD FOR PRODUCTION THEREOF, SAFETY CIRCUIT AND FUSE |
摘要 |
A fuse has a fuse element (6) with a fusible conductor (7) of a conductor material (8) such as Ag, Cu or Al and is provided with doping points (9) following one another at regular intervals. There, the conductor material (8) has a directly adjoining layer of a first compound (10) of the same with a doping material such as In or Ge. It forms mixed crystals which contain the conductor material (8) and the doping material in a fixed stoichiometric ratio, such as for example Ag2In, and is separated from said conductor material by a stable phase boundary. The doping points (9) weaken the fusible conductor by lowering the melting point to below 250° C., so that arc formation rapidly occurs there when there are short-circuit currents, although its electrical resistance per unit of length is under some circumstances only a few percent greater than in the remaining region. The fusible conductor (7) bears a continuous layer of a burn-up material (12). It has an ignition temperature which is preferably lower than the melting point of the first compound (10). |
申请公布号 |
EP1281190(A1) |
申请公布日期 |
2003.02.05 |
申请号 |
EP20010919045 |
申请日期 |
2001.04.17 |
申请人 |
ABB RESEARCH LTD. |
发明人 |
KALTENBORN, UWE;SKRYTEN, PAL, KRISTIAN |
分类号 |
H01H85/06;H01H85/11;(IPC1-7):H01H85/11 |
主分类号 |
H01H85/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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