公开(公告)号：EP2884517A1

公开(公告)日：2015-06-17

申请号：EP13005772.2

申请日：2013-12-11

Applicant: ABB Technology AG

Inventor： Sokolov, Alexey ,  Gentsch, Dietmar ,  Rager, Felix ,  Lamara, Tarek ,  Delachaux, Thierry

IPC: H01H33/664 ,  H01H3/00

CPC classification number: H01H33/6642 ,  H01H3/001 ,  H01H2033/6648

Abstract: AMF contact for vacuum interrupter, with concentric opposing contact pieces, wherein the contact pieces consist of an external electrode shaped like a coil with a plate as bottom plate of the electrode, and generating a strong axial magnetic field, and an inner internal electrode as top electrode, carrying the nominal current, according to the preamble of claim 1. In order to to design the outer electrode in order to generate the axial magnetic field as requested for the application, with potentially superior performances to the competitors, the invention is, that between the top electrode and the bottom plate is arranged a rod, which is at one end fixed at that lower side of the top electrode and the other end of the rod is guided trough an opening of the bottom plate, wherein at that end of the rod the rod is being furnished with an extended head in such, that the extended head of the rod locks or tightens the rod in a defined axial position. Furthermore the solution can be applied for the standard AMF or TMF (cup) contacts to reinforce them.

Abstract translation: 用于真空断路器的AMF触点，具有同心的相对的接触片，其中接触片由形状类似于具有作为电极的底板的板的线圈的外部电极组成，并且产生强的轴向磁场，以及内部内部电极作为顶部 电极，承载标称电流。为了设计外部电极以产生应用要求的轴向磁场，具有对竞争者的潜在优越性能，本发明是，该 在顶部电极和底板之间布置有杆，其一端固定在顶部电极的下侧，杆的另一端被引导通过底板的开口，其中在该端部 杆杆设置有延伸的头部，杆的延长头部将杆锁定或紧固在限定的轴向位置。 此外，该解决方案可以应用于标准AMF或TMF（杯）触点以加强它们。