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发明授权
CN107615436B 电磁继电器 有权

电磁继电器
摘要：
电磁继电器(1)具备电磁铁装置(3)、触点装置(2)以及当流过异常电流时将触点装置(2)设为开状态的脱扣装置(4)。电磁铁装置(3)具有第一励磁线圈(31)、固定件(32)、第一可动件(331)、第二可动件(332)以及永久磁铁(37)。触点装置(2)具有固定触点(22、122)和可动触点(21、121)。电磁继电器(1)在通过永久磁铁(37)将第二可动件(332)吸附在第一可动件(331)的状态下，通过由第一励磁线圈(31)产生的磁通量将第一可动件(331)吸引到固定件(32)，使第二可动件(332)与第一可动件(331)一同从稳态位置向吸引位置移动。触点装置(2)构成为通过可动触点(21、121)伴随着第二可动件(332)的移动而移动，从而对可动触点(21、121)与固定触点(22、122)接触的闭状态和可动触点(21、121)从固定触点(22、122)分开的开状态进行切换，如果第二可动件(332)处于吸引位置，则成为闭状态。脱扣装置(4)具有与触点装置(2)串联连接的第二励磁线圈(41)和对第二可动件(332)作用从第一可动件(331)分开的方向的力的弹簧(42)。
摘要（英）：

An electromagnetic relay includes a fixed contact, a movable contact, a movable contactor, a shaft, first and second excitation coils, a fixed element, and first and second movable elements. The movable contact is movable from a closed position to an open position. The movable contact contacts to the fixed contact when the movable contact is positioned at the closed position. The movable contact is away from the fixed contact when the movable contact is positioned at the open position. The movable contactor includes the movable contact. The shaft is configured to move the movable contactor in one direction. The first movable element is movable to a first position and a second position. The first movable element is positioned at the first position when the first movable element is attracted by the fixed element due to the first excitation coil.

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