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    • 3. 发明公开
    • Direct current switching apparatus
    • Gleichstromschaltgerät。
    • EP0428138A2
    • 1991-05-22
    • EP90121723.2
    • 1990-11-13
    • EATON CORPORATION
    • Theisen, Peter J.Wycklendt, Daniel A.Juds, Mark A.Moldovan, Peter K.
    • H01H9/36H01H9/44H01H1/20
    • H01H1/20H01H1/64H01H9/0264H01H9/342H01H9/36H01H9/443H01H33/596H01H50/541H01H51/2209
    • Direct current switching apparatus having two arc extinguishing chambers each comprising a pair of spaced conductors providing cooperable arc runners divergent toward a row of nonferromagnetic splitter plates and a stationary contact conductively mounted on one conductor, the stationary contacts of respective chambers being mounted on respectively opposite conductors, corresponding conductors in respective chambers being conductively connected to each other and to power terminals of the apparatus, permanent magnets affixed against external surfaces of the housings of the arc chambers applying a magnetic field across the respective chamber for moving an arc within the chamber, ferromagnetic plates disposed around the arc chamber housings and the permanent magnets providing flux return paths to optimize and maximize the magnetic field, a movable contact extending into each chamber bridging the stationary contacts and movable by an electromagnetic actuator to separate the movable and stationary contacts, drawing an arc therebetween in each chamber, the arc in one chamber subsequently bridging the pair of conductors within that one chamber establishing a circuit comprising the arc between the conductors and the power terminals in shunt of the movable contact, thereby eliminating the arc in the other chamber, the bridging arc being driven into the respective splitter plates to be extinguished therein, interrupting the circuit. The magnetic fields are applied in opposite directions in the respective chambers for non-polarized operability of the apparatus. The magnetic fields are distorted within the splitter plate area of each chamber to drive and maintain an arc at a final stable arc position against a sidewall within the splitter plates, the wall thickness being increased at that position to withstand erosion. In a preferred embodiment the switching apparatus comprises a lightweight, compact, hermetically sealed contactor rated at 250 amp, 270 volts.
    • 具有两个灭弧室的直流开关装置,每个灭弧室均包括一对间隔开的导体,其提供朝向一排非铁磁分离板发散的合作电弧流道,以及导电地安装在一个导体上的固定触点,各个室的固定触点分别安装在相对的导体 相应的导体在相应的腔室中彼此导电连接并为设备的端子供电,固定在电弧室外壳表面上的永久磁铁在相应腔室内施加磁场,以移动腔室内的电弧,铁磁 设置在电弧室壳体周围的板和提供磁通返回路径的永磁体以优化和最大化磁场;可移动接触件,延伸到每个室中,桥接固定触点并且可由电磁致动器移动以分离可移动和静态 离子接触,在每个室中引弧,在一个室中的电弧随后在该一个室内桥接一对导体,建立包括导体之间的电弧的电路和可动触头分流的电源端子,从而消除电弧 在另一个室中,桥接电弧被驱动到相应的分离板中以在其中熄灭,中断电路。 在相应的室中以相反的方向施加磁场,用于装置的非极化可操作性。 磁场在每个腔室的分离板区域内变形,以驱动和保持电弧到达分离板内的侧壁的最终稳定的电弧位置,壁厚度在该位置增加以承受侵蚀。 在一个优选实施例中,开关装置包括一个轻量级,紧凑的气密密封接触器,额定功率为250安,270伏。
    • 8. 发明公开
    • Molded case circuit breaker with arc barrier
    • Leistungsschalter mit gegossenemGehäusemit Lichtbogenschutz
    • EP2728598A1
    • 2014-05-07
    • EP13188271.4
    • 2013-10-11
    • LSIS Co., Ltd.
    • Jang, Jun Yong
    • H01H1/64
    • H01H71/50H01H1/226H01H1/64H01H2009/305
    • A molded case circuit breaker comprises : a plurality of stationary contact arms (1); a plurality of movable contact arms (3) each having a plurality of contact arm pieces; a switching mechanism (20) providing a driving force to move the movable contact arms (3) to a closing position or an opening position; a driving shaft (22) configured to provide a driving force for simultaneously rotating the movable contact arms (3); a link (8) configured to transmit a driving force; a holder (4, 5) configured to rotate the movable contact arms; an upper arc barrier (10) configured to prevent arcs from moving to a rear side from an upper side of the movable contact arms; and a torsion spring (11) having one end portion (11a) contacting upper surface of the movable contact arms (3) on the opening position, so as to provide an elastic force to the movable contact arms (3) such that the movable contact arms (3) are rotated to the closing position.
    • 一种塑壳断路器包括:多个固定接触臂(1); 多个可动接触臂(3),每个具有多个接触臂片; 切换机构(20),其提供将可动接触臂(3)移动到关闭位置或打开位置的驱动力; 驱动轴(22),其构造成提供用于同时旋转所述可动接触臂(3)的驱动力; 构造成传递驱动力的连杆(8); 被配置为旋转所述可动接触臂的保持器(4,5) 被配置为防止电弧从可动接触臂的上侧移动到后侧的上部弧形阻挡层(10); 以及扭力弹簧(11),其具有在所述打开位置与所述可动触头臂(3)的上表面接触的一个端部(11a),以便向所述可动触头臂(3)提供弹性力,使得所述可动触点 臂(3)旋转到关闭位置。