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    KONTAKTAPPARAT EINES ELEKTRISCHEN SCHALTGERAETS
    2.
    发明公开
    KONTAKTAPPARAT EINES ELEKTRISCHEN SCHALTGERAETS 有权
    作者电器SCHALTGERAETS接触器

    公开(公告)号：EP2649632A1

    公开(公告)日：2013-10-16

    申请号：EP11791514.0

    申请日：2011-11-28

    申请人： Eaton Electrical IP GmbH & Co. KG

    发明人： HEINS, Volker ,  HAENDLER, Kurt

    IPC分类号： H01H77/10 ,  H01H1/54

    CPC分类号： H01H1/12 ,  H01H1/54 ,  H01H77/101 ,  H01H77/107

    摘要： The invention relates to a contact apparatus of an electrical switching device, in which contact apparatus the electrodynamic effect of flows which flow in parallel is used, in particular, for electrodynamic contact separation. In this case, the contact apparatus has formed in it at least: a first rigid current conductor A1, 20 which leads to at least one fixed contact 22', a second conductor section A2 which runs through contacts 22', 24' of the contact apparatus, a third conductor section A3 which runs across at least one contact arm 24A, 24B of the rotary contact body 23, 23', and a last, fifth conductor section A5 as an ingoing and outgoing current conductor 28 which runs closely adjacent to the first conductor section A1, 20. There is a closed current path in which the current directions - as viewed with the contact apparatus closed - in the first A1, in the fifth A5 and in the third conductor section A3 (a contact arm 24A, 24B) lie parallel but the current directions in the first A1 and in the fifth conductor section A5 is the same and the current direction in the third conductor section A3 is opposite to the above-mentioned current directions A1, A5. The result is an acceleration magnetic field with a double electrodynamic effect on the (at least one) contact arm 24A, 24B of the rotary contact body in which the current flows in the opposite direction.

    KONTAKTSYSTEM EINES LEISTUNGSSCHUTZSCHALTERS
    3.
    发明公开
    KONTAKTSYSTEM EINES LEISTUNGSSCHUTZSCHALTERS 有权
    电力断路器的触头系统

    公开(公告)号：EP2898525A1

    公开(公告)日：2015-07-29

    申请号：EP13771417.6

    申请日：2013-09-19

    申请人： Eaton Electrical IP GmbH & Co. KG

    发明人： HAENDLER, Kurt

    IPC分类号： H01H77/10 ,  H01H3/22

    CPC分类号： H01H71/505 ,  H01H3/3031 ,  H01H73/26 ,  H01H77/105

    摘要： The contact systems of circuit breakers for at least one pole are equipped with a movable contact in the form of a contact arm. The contact arm is biased by a contact force spring in order to generate a contact pressure in the closed position. The contact arm 10 is mounted in a circuit breaker housing in a rotatable manner about a contact arm rotational point, the low-voltage switch being actuated in said housing. An essential aspect of the contact system according to the invention is that the contact force spring 18, 19 is arranged between the contact arm 10 and a lever 21 which can be rotated about a lever rotational point 23. The contact force spring 19 biases the contact arm 10 and the lever at both ends of the spring. The position of the contact arm rotational point 12, the position of the lever rotational point 23, and the lengths of the lever and the contact arm 10 are dimensioned relative to one another such that a resulting torque which generates the contact force is applied to the contact arm 10, and the rotatable lever 21 and the contact arm 10 latch to each other in any position of the contact system between ON and OFF and back when the switch is manually actuated by a handle 7. The lever 21 and the contact arm 10 unlatch when an opening movement is electrodyamically triggered (in the event of a short-circuit or an overcurrent) and relatch while the contact system is converted into the normal position in order to reset after the opening movement has been electrodynamically triggered.