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    • 4. 发明公开
    • Electrical device with low friction contact parts
    • Elektrische Vorrichtung mit reibungsarmen Kontaktteilen
    • EP2942846A1
    • 2015-11-11
    • EP14167341.8
    • 2014-05-07
    • ABB Technology Ltd
    • Carstensen, HaukeHjörvarsson, BjörgvinWolff, MaxKapaklis, Vassilios
    • H01R39/20H01F1/44H01R39/64H01R39/59
    • H01R39/646H01F1/447H01R39/08H01R39/20H01R39/30H01R39/48H01R39/52H01R39/59
    • The present disclosure relates to a electrical device (1) comprising an electrode arrangement (2) comprising a magnet (3), and an electrode (5), an electrically conducting movable device (7), movable relative to the electrode arrangement (2) and spaced apart from the electrode arrangement (2), whereby a gap (G) is formed therebetween, and a suspension (9) comprising a liquid (9a), a plurality of magnetic particles (9b) dispersed in the liquid (9a) and a plurality of non-magnetic electrically conducting particles (9c) dispersed in the liquid (9a), which non-magnetic electrically conducting particles (9c) have higher electric conductivity than the magnetic particles (9b), wherein the suspension (9) extends between the electrically movable device (7) and the electrode arrangement (2) in the gap (G), and wherein the magnet (3) is arranged to provide a magnetic field through the suspension (9) to thereby align the non-magnetic electrically conducting particles (9c) between the electrode arrangement (2) and the electrically conducting movable device (7) to obtain an electrical connection between the electrode arrangement (2) and the electrically conducting movable device (7).
    • 本发明涉及一种包括电极装置(2)的电气装置(1),电极装置(2)包括磁体(3)和电极(5),可相对于电极装置(2)移动的导电可移动装置(7) 并且与电极装置(2)间隔开,由此在它们之间形成间隙(G),以及包括液体(9a)的悬浮液(9),分散在液体(9a)中的多个磁性颗粒(9b)和 分散在液体(9a)中的多个非磁性导电颗粒(9c),该非磁性导电颗粒(9c)具有比磁性颗粒(9b)更高的导电性,其中悬浮液(9)在 所述间隙(G)中的所述电可移动装置(7)和所述电极装置(2),并且其中所述磁体(3)被布置成通过所述悬架(9)提供磁场,从而对准所述非磁性导电 电极之间的颗粒(9c) (2)和导电可移动装置(7),以获得电极装置(2)和导电可移动装置(7)之间的电连接。