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    • 4. 发明公开
    • CONTACT DEVICE AND ELECTROMAGNETIC SWITCH USING SAME
    • KONTAKTVORRICHTUNG UND ELEKTROMAGNETISCHER SCHALTER DAMIT
    • EP2838097A1
    • 2015-02-18
    • EP13775189.7
    • 2013-04-11
    • Fuji Electric Fa Components & Systems Co., Ltd.Fuji Electric Co., Ltd.
    • ISOZAKI, MasaruKASHIMURA, OsamuTACHIKAWA, HiroyukiTAKAYA, KouetsuSHIBA, Yuji
    • H01H9/44H01H33/18H01H50/00
    • H01H1/06H01H9/443H01H33/20H01H33/60H01H50/38H01H50/546H01H2050/025
    • There is provided a contact device, and an electromagnetic switch in which the contact device is used, such that an arc generated between a fixed contact and a movable contact when the contacts are opened can be easily extinguished. The contact device includes a pair of fixed contacts (111), (112) fixedly disposed maintaining a predetermined interval inside an arc extinguishing chamber (102) and a movable contact (130) disposed so as to be connectable to and detachable from the pair of fixed contacts inside the arc extinguishing chamber (102), wherein a first arc root movement promotion portion (118b), (118c) that promotes movement in a direction away from the movable contact of the root of an arc generated when the contacts are opened and the movable contact moves away is formed on each of the pair of fixed contacts, and a second arc root movement promotion portion (130b), (130c) that promotes movement in a direction away from the relevant fixed contact of the root of an arc generated when the contacts are opened and the movable contact moves away from the pair of fixed contacts is formed on the movable contact (130).
    • 提供接触装置和使用接触装置的电磁开关,使得当触点打开时在固定触点和可动触点之间产生的电弧可以容易地熄灭。 接触装置包括固定地设置在灭弧室(102)内保持预定间隔的一对固定触点(112)和可移动触点(130),该触点设置成可连接到可拆卸的一对 灭弧室内的固定触点,其中,第一弧根运动促进部分(118c),(118c),其促进沿着触点打开时产生的电弧根部的可动触点的方向的移动;以及 形成在所述一对固定触点中的每一个上的所述可动触头移动;以及第二弧根移动促进部(130b),(130c),其促使沿远离所产生的电弧的相关固定触点的方向移动 当触点被打开并且可动触头移动远离该对固定触点时,形成在可动触点(130)上。
    • 9. 发明公开
    • ELECTROMAGNETIC CONTACTOR
    • 电磁接触器
    • EP2711965A1
    • 2014-03-26
    • EP12784956.0
    • 2012-05-09
    • Fuji Electric Co., Ltd.Fuji Electric FA Components & Systems Co., Ltd.
    • KASHIMURA, OsamuISOZAKI, MasaruTACHIKAWA, HiroyukiTAKAYA, KouetsuNAKA, YasuhiroSHIBA, Yuji
    • H01H50/54H01H50/00H01H50/38
    • H01H33/182H01H51/22
    • There is provided an electromagnetic contactor including a function of positioning a permanent magnet for arc extinguishing, a function of protecting from an arc, and necessary insulating functions, thereby enabling a reduction in size while ensuring a sufficient arc extinguishing function. The electromagnetic contactor includes a contact device housing in a contact housing case (102), in which a pair of fixed contacts (111), (112), and a movable contact (130) are disposed so as to be connectable to and detachable from the pair of fixed contacts, and has on the inner peripheral surface of the contact housing case (102) an insulating cylinder (140) of a bottomed tubular form that encloses the pair of fixed contacts and movable contact, wherein the insulating cylinder (140) positions arc extinguishing permanent magnets (143), (144) that extinguish an arc generated between the pair of fixed contacts and movable contact, magnet housing portions (141), (142) that protect the arc extinguishing permanent magnets from an arc are formed opposing side surfaces of the movable contact on the inner peripheral surface of the insulating cylinder, and arc extinguishing spaces (145), (146) are formed on outer sides of the magnet housing portions in the extension direction of the movable contact.
    • 本发明提供一种电磁接触器,该电磁接触器具有定位用于灭弧的永久磁铁的功能,具有保护电弧的功能和必要的绝缘功能,由此能够在确保足够的灭弧功能的同时减小尺寸。 该电磁接触器包括在接触壳体(102)中的接触装置壳体,其中一对固定接触件(111),(112)和可移动接触件(130)设置成可连接到和可从其上拆卸 所述一对固定触点在所述触点收容壳体的内周面具有包围所述一对固定触点和可动触点的有底筒状的绝缘筒, 在熄灭在一对固定触点与可动触点之间产生的电弧的位置形成灭弧用的永久磁铁(143),(144),保护灭弧用永久磁铁不受电弧影响的磁铁容纳部(141),(142) 在绝缘筒的内周面上的可动触点的侧表面和灭弧空间(145),(146)形成在磁体壳体部分沿可动c的延伸方向的外侧 防尘带。