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    • 2. 发明专利
    • Contact device and electromagnetic contactor using the same
    • 使用该接触装置和电磁接触器
    • JP2013084425A
    • 2013-05-09
    • JP2011223145
    • 2011-10-07
    • Fuji Electric Co Ltd富士電機株式会社Fuji Electric Fa Components & Systems Co Ltd富士電機機器制御株式会社
    • ISOZAKI MASARUKASHIMURA OSAMUTACHIKAWA HIROYUKITAKATANI YUKINOBUNAKA YASUHIROSHIBA YUJI
    • H01H50/00
    • H01H50/54H01H1/54H01H9/443H01H50/546H01H50/641H01H51/2209H01H51/284H01H71/10H01H2050/025
    • PROBLEM TO BE SOLVED: To provide a contact device that can suppress electromagnetic repulsive force to make a movable contact open pole at the time of electric conduction without making an entire construction large, and an electromagnetic contactor using the contact device.SOLUTION: A contact device comprises a contact mechanism including a pair of stationary contacts placed with a prescribed distance from each other and a movable contact placed such that it is able to contact or move away from the pair of stationary contacts. The movable contact includes a conductive plate part extending in the direction crossing with the movable direction within a contact housing case. Each of the pair of stationary contacts has an L-shaped part by an inner conductor plate part one end of which faces one end of the conductive plate part of the movable contact and the other end extends to the outside of the contact housing case and an outer conductor plate part extending at least to the direction away from the movable contact with coupled to the end of the outside of the contact housing case of the inner conductor plate part, the L-shaped part generating Lorentz force resisting electromagnetic repulsive force in an open pole direction which is generated between the stationary contacts and the movable contact at the time of electric conduction.
    • 要解决的问题:提供一种接触装置,其能够抑制电磁排斥力,从而在不导致整体结构的情况下在导电时制造可动触点开放极,以及使用该接触装置的电磁接触器。 接触装置包括接触机构,该接触机构包括以彼此间隔规定距离放置的一对固定触点和放置成能够接触或远离所述一对固定触点的可动触头。 可动触点包括在触点外壳内沿与活动方向交叉的方向延伸的导电板部分。 一对固定触点中的每一个具有L形部分,内部导体板部分的一端面对可动触点的导电板部分的一端,另一端延伸到触点外壳的外侧, 外部导体板部分至少延伸到远离可动触点的方向,该内部导体板部件与内部导体板部分的触点外壳的外部端部相连接,L形部分产生洛伦兹力,其在开放状态下抵抗电磁排斥力 在导电时在固定触头和可动触头之间产生的极方向。 版权所有(C)2013,JPO&INPIT