Patent ID: 8653916
Filing Date: 2014-02-18
Classification: H01H

Abstract:
1. An electromagnetic contactor accommodating, in a case, an electromagnet having a movable core performing an attraction movement by a generation of an attraction force between the movable core and a fixed core, a movable contact support moving between an initial position and a contact switching position in parallel with a movement direction of the movable core, a return spring urging the movable contact support toward the initial position, and a drive lever engaging the movable core and the movable contact support, and transmitting the attraction movement of the movable core with respect to the movable contact support as a movement toward the switching position, wherein the electromagnetic contactor includes an urging portion applying an urging force to the movable core to hold the movable core at the movable core initial position, which is apart from the fixed core and does not engage the movable contact support, the electromagnet comprises a coil frame having a hollow portion with a coil wound around, and the movable core formed in substantially an E shape and disposed to face the fixed core on one end side of the coil frame, the movable core having a central leg inserted into the hollow portion of the coil frame from a core base portion, and a pair of outside legs sandwiching the central leg, and the urging portion is a compression coil spring having two ends in an axial direction contacting with a wall surface on one end side of the coil frame and the core base portion of the movable core in a state where the central leg of the movable core is inserted into the conical coil spring, and the compression coil spring is a conical coil spring.