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    • 3. 发明公开
    • CONTACT DEVICE, AND ELECTROMAGNETIC SWITCH USING SAME
    • KONTAKTVORRICHTUNG UND ELEKTROMAGNETISCHER SCHALTER DAMIT
    • EP2557583A1
    • 2013-02-13
    • EP11816199.1
    • 2011-06-14
    • Fuji Electric Fa Components & Systems Co., Ltd.Fuji Electric Co., Ltd.
    • TAKAYA, KoetsuSUZUKI, KenjiNAKA, Yasuhiro
    • H01H50/54H01H50/00
    • H01H33/60H01H9/443H01H50/546
    • The present invention provides a contact device capable of easily extinguishing an arc that is generated between a fixed contactor and a movable contactor when the contact device is in an open state, and an electromagnetic switch that uses this contact device. The contact device has: a pair of columnar fixed contactors (6a, 6b) which are fixed to a surface of an insulation container (4) while keeping a predetermined space therebetween and each have at least a tip end contact surface protruding into the insulation container; and a movable contactor (11) that is disposed so as to be capable of coming into contact with and separating from the pair of fixed contactors (6a, 6b). Surfaces of the pair of fixed contactors (6a, 6b) that face the movable contactor (11) are configured by annular peripheral walls (9) having concave parts (9a) at central parts thereof. An annular arc is formed between the annular peripheral walls (9) and the movable contactor (11) when the contact device is in an open state.
    • 本发明提供一种能够容易地消除当接触装置处于打开状态时在固定接触器和可动接触器之间产生的电弧的接触装置,以及使用该接触装置的电磁开关。 接触装置具有:一对柱状固定接触器(6a,6b),其固定在绝缘容器(4)的表面上,同时保持其间的预定间隔,并且每个至少具有突出到绝缘容器中的尖端接触表面 ; 以及能够与所述一对固定接触器(6a,6b)接触和分离的可动接触器(11)。 面对可动接触器(11)的一对固定接触器(6a,6b)的表面由在其中心部分具有凹部(9a)的环形周壁(9)构成。 当接触装置处于打开状态时,环形圆弧形成在环形周壁(9)和活动接触器(11)之间。
    • 4. 发明公开
    • ELECTROMAGNETIC SWITCH
    • ELEKTROMAGNETISCHER SCHALTER
    • EP2557582A1
    • 2013-02-13
    • EP11821243.0
    • 2011-06-14
    • Fuji Electric Fa Components & Systems Co., Ltd.Fuji Electric Co., Ltd.
    • SUZUKI, KenjiNAKA, YasuhiroTAKAYA, KoetsuSHIBA, YujiYAMAMOTO, Yuichi
    • H01H50/22H01H50/00H01H50/36H01H50/54
    • H01H50/546H01H9/443H01H50/30
    • There is provided an electromagnetic switch wherein it is possible to improve vibration and impact resistance performance without increasing return biasing force. An electromagnetic switch includes a contact device (1) having a pair of fixed contacts (4a, 4b) fixed maintaining a predetermined interval inside an arc extinguishing chamber receptacle (3) and a movable contact (5) disposed so that it can come into contact with, and separate from, the pair of fixed contacts, and an electromagnetic device (2) having a movable plunger (13) that can move between an opened position wherein the movable contact (5) is caused to separate from the fixed contacts and a closed position wherein the movable contact is brought into contact with the fixed contacts and pressed down, wherein permanent magnets (16a, 16b), which extinguish an arc generated at an opening time when the movable contact separates from the fixed contacts from a condition in which the movable contact is in the closed position wherein it is in contact with the fixed contacts, are provided on the arc extinguishing chamber receptacle (3) and, in a condition in which the movable plunger (13) is in the opened position, there is formed a magnetic circuit (La) from the permanent magnets, returning to the permanent magnets via the movable plunger.
    • 提供了一种电磁开关,其中可以提高振动和抗冲击性能,而不增加返回偏置力。 电磁开关包括接触装置(1),该接触装置(1)具有在灭弧室容器(3)内保持预定间隔固定的一对固定触头(4a,4b)和设置成能够接触的可动触头(5) 与一对固定触点分离,并具有可移动的柱塞(13)的电磁装置(2),该活动柱塞可以在使可动触头(5)与固定触点分离的打开位置和 闭合位置,其中可动触头与固定触头接触并被压下,其中永磁体(16a,16b)在可动触点与固定触点分离时在打开时产生的电弧从其中消除 活动触点处于与固定触点接触的关闭位置,设置在灭弧室容器(3)上,并且在可动活塞(13)为 在打开位置,形成有来自永久磁铁的磁路(La),经由可动柱塞回到永久磁铁。
    • 6. 发明公开
    • ARC EXTINGUISHING CHAMBER ASSEMBLY METHOD FOR ELECTROMAGNETIC CONTACTOR
    • LICHTBOGENLÖSCHKAMMER-MONTAGEVERFAHRENFÜREIN ELEKTROMAGNETISCHESSCHÜTZ
    • EP2711955A1
    • 2014-03-26
    • EP12785001.4
    • 2012-04-03
    • Fuji Electric Fa Components & Systems Co., Ltd.Fuji Electric Co., Ltd.
    • NAKA, YasuhiroTAKAYA, KouetsuSUZUKI, Kenji
    • H01H49/00H01H50/14
    • H01H11/00H01H1/66H01H9/443H01H49/00H01H50/045H01H50/14H01H50/163H01H50/38H01H51/065H01H2050/025Y10T29/49105
    • A method for assembling an arc-extinguishing chamber of an electromagnetic contactor is provided which is capable of easily assembling an arc-extinguishing chamber when the shape of a fixed contact is complicated. According to the method, an arc-extinguishing chamber of an electromagnetic contactor can be assembled by carrying out: a step of fixing a pair of fixed contacts (111) and (112), which is configured by a support conductor (114) and a C-shaped part (115), to a bottom plate part of a tub-shaped arc-extinguishing chamber (102) having an open end, this C-shaped part (115) configuring the inside of the arc-extinguishing chamber (102); a step of installing an insulation cover (121), which covers a part other than contact point parts, to the C-shaped part (115) of the pair of fixed contacts (111) and (112); and step of disposing a movable contact (130) so as to be able to come into contact with and separate from the contact point parts (118a) of the fixed contacts (111) and (112).
    • 提供一种组装电磁接触器的灭弧室的方法,当固定接点的形状复杂时,能够容易地组装灭弧室。 根据该方法,电磁接触器的灭弧室可以通过执行以下步骤组装:固定由支撑导体(114)和支撑导体(114)构成的一对固定触头(111)和(112)的步骤, C形部分(115)连接到具有开口端的桶形灭弧室(102)的底板部分,该C形部分(115)构成灭弧室(102)的内部, ; 将覆盖除了接触点以外的部分的绝缘盖(121)安装到所述一对固定触头(111)和(112)的所述C形部分(115)的步骤; 以及设置可动触头(130)以便能够与固定触头(111)和(112)的触点部分(118a)接触和分离的步骤。
    • 7. 发明公开
    • ELECTROMAGNETIC CONTACTOR
    • ELEKTROMAGNETISCHESSCHÜTZ
    • EP2711954A1
    • 2014-03-26
    • EP12785124.4
    • 2012-04-03
    • Fuji Electric Fa Components & Systems Co., Ltd.Fuji Electric Co., Ltd.
    • NAKA, YasuhiroTAKAYA, KouetsuSUZUKI, KenjiTAGUCHI, Takahiro
    • H01H47/04H01H50/36
    • H01H47/32H01H9/443H01H50/14H01H50/163H01H50/38H01H50/42H01H51/065H01H2050/025
    • There is provided an electromagnetic contactor such that it is possible to reduce the energizing current flowing to a coil, and to reduce the overall size. An electromagnet unit that drives a movable contact disposed so as to be connectable to and detachable from fixed contacts includes at least a movable plunger biased by a return spring, a coil (208) that enables the movable plunger to move, and a ring-form permanent magnet, magnetized in the direction in which the movable plunger is movable, disposed and fixed so as to enclose a peripheral flange portion formed on the movable plunger. A drive circuit (300) that drives the coil (208) includes a power source that supplies power to the coil (208), a pulse drive circuit (305) that outputs and supplies to the coil (208) an engage pulse that causes an operation suctioning the movable plunger and a hold pulse that, when the movable plunger is subjected to a suctioning operation by the engage pulse, maintains the suctioning operation, and a flywheel circuit (310), (320) having a semiconductor switching element (Tr2) connected in parallel to the coil (208).
    • 提供了一种电磁接触器,使得可以减少流向线圈的通电电流并减小总体尺寸。 驱动设置成能够与固定触点可拆卸的可动触头的电磁体单元包括至少一个由复位弹簧偏压的活动柱塞,能够使可动柱塞移动的线圈(208)和环形 永磁体,其沿可移动柱塞可移动,设置和固定的方向被磁化,以包围形成在可移动柱塞上的周边凸缘部分。 驱动线圈(208)的驱动电路(300)包括向线圈(208)供电的电源;脉冲驱动电路(305),其向线圈(208)输出并提供接合脉冲, 以及保持脉冲,当可动柱塞受到接合脉冲的吸引作用时,保持吸入动作,并且具有半导体开关元件(Tr2)的飞轮回路(310),(320) 与线圈(208)并联连接。
    • 9. 发明公开
    • ELECTROMAGNETIC CONTACTOR
    • 电磁接触器
    • EP2765588A1
    • 2014-08-13
    • EP12837693.6
    • 2012-10-03
    • Fuji Electric Co., Ltd.Fuji Electric Fa Components & Systems Co., Ltd.
    • KASHIMURA, OsamuISOZAKI, MasaruTACHIKAWA, HiroyukiTAKAYA, KouetsuNAKA, YasuhiroSHIBA, Yuji
    • H01H50/54H01H50/14
    • H01H1/58H01H1/54H01H50/10H01H50/14H01H50/546
    • There is provided an electromagnetic contactor with which it is possible to suppress electromagnetic repulsion forces which cause a movable contact to open when current is conducted without any effect of magnetic fields of external connection conductors. The electromagnetic contactor includes a contact mechanism (CM) including a pair of fixed contacts (2), interposed in a current conduction path, which have their respective fixed contact portions (2a), (2b) and a movable contact 3 having a pair of movable contact portions (3b), (3c) which are able to come into and out of contact with the pair of fixed contact portions, wherein at least one of the pair of fixed contacts or movable contact is formed in a shape such as to form magnetic fields which generate Lorentz forces opposing electromagnetic repulsion forces generated in an opening direction between the fixed contact portions and movable contact portions when current is conducted. Also, the attachment direction of fixed portions (22), (23), each of which, having an external connection conductor (20), (21) connected to an external connection terminal (2i), (2j) of the corresponding fixed contact 2, is attached to the external connection terminal of the external connection conductor, is set so as to cross the direction of current flowing through the movable contact.
    • 提供了一种电磁接触器,利用该电磁接触器可以抑制电磁排斥力,该电磁排斥力在没有外部连接导体的磁场的任何影响的情况下导通电流时导致可动触点打开。 该电磁接触器包括一个接触机构(CM),该接触机构包括一对置于电流传导通路中的固定触点(2),它们具有它们各自的固定触点部分(2a),(2b)和具有一对 可动接点部(3b),(3c),其能够与上述一对固定接点部进出接触,其中,上述一对固定接点或可动接点中的至少一方形成为形成 产生洛伦兹力的磁场,所述洛仑兹力反抗在电流传导时在固定接触部分和可动接触部分之间沿打开方向产生的电磁排斥力。 另外,固定部22,23的安装方向分别具有与外部连接导体20,21连接的外部连接端子2i,2j, 2被安装在外部连接导体的外部连接端子上,并被设定为与流过可动触点的电流的方向交叉。
    • 10. 发明公开
    • CONTACT DEVICE AND MAGNETIC CONTACTOR USING SAME
    • KONTAKTVORRICHTUNG UNDMAGNETSCHÜTZDAMIT
    • EP2765586A1
    • 2014-08-13
    • EP12838528.3
    • 2012-10-03
    • Fuji Electric Co., Ltd.Fuji Electric Fa Components & Systems Co., Ltd.
    • ISOZAKI, MasaruKASHIMURA, OsamuTACHIKAWA, HiroyukiTAKAYA, KouetsuNAKA, YasuhiroSHIBA, Yuji
    • H01H50/00
    • H01H50/54H01H1/54H01H9/443H01H50/546H01H50/641H01H51/2209H01H51/284H01H71/10H01H2050/025
    • There is provided a contact device with which it is possible to suppress electromagnetic repulsion forces which cause a movable contact to open when current is conducted without increasing the size of the overall configuration, and an electromagnetic contactor using the contact device. The contact device includes a contact mechanism including a pair of fixed contacts disposed maintaining a predetermined distance and a movable contact disposed so as to be able to come into and out of contact with the pair of fixed contacts, wherein the movable contact has in a contact housing case a conductive plate portion extending in a direction crossing a direction in which the movable contact is movable, and wherein each of the pair of fixed contacts is such that an L-shaped portion which generates a Lorentz force opposing an electromagnetic repulsion force generated in an opening direction between the fixed contact and movable contact when current is conducted is formed of an inner side conductor plate portion, one end of which is opposite to one end portion of the conductive plate portion of the movable contact and the other end portion of which extends toward the outside of the contact housing case, and an outer side conductor plate portion, connected to an end portion of the inner side conductor plate portion on the outer side of the contact housing case, which at least extends in a direction in which the movable contact moves away.
    • 提供了一种接触装置,通过该接触装置,可以抑制电流排斥力,其在不增加整体结构的尺寸的情况下导致可动触头打开,而使用该接触装置的电磁接触器。 接触装置包括接触机构,其包括保持预定距离的一对固定触点和设置成能够与一对固定触头接触的可动触头,其中可动触点具有触点 壳体,在与可动触点可移动的方向交叉的方向上延伸的导电板部分,并且其中每对固定触点中的每一个都是这样一种L形部分,其产生与在其中产生的电磁排斥力相反的洛伦兹力 当导电时,固定触点和可动触点之间的打开方向由内侧导体板部分形成,内侧导体板部分的一端与可动触点的导电板部分的一个端部相对,而另一端部 延伸到接触外壳的外侧,外侧导体板部分与外壳的端部相连 内侧导体板部分在触头外壳的外侧上,其至少在可动触头移开的方向上延伸。