Non-polarized snap-on electromagnetic relay

A non-polarized snap-on electromagnetic relay, arbitrarily connecting two electrodes for electrical conduction to execute a charging or discharging operation without a need of considering positive and negative polarity, the non-polarized snap-on electromagnetic relay comprising a base, a solenoid coil assembly, a link assembly, a fixed contact assembly, and a movable contact assembly;

• the solenoid coil assembly, the link assembly, the fixed contact assembly, and the movable contact assembly being disposed on the base;
• the link assembly being installed on a side of the solenoid coil assembly and operated according to a driving status of the solenoid coil assembly, wherein:
• the fixed contact assembly comprises two fixed conductive plates, a first fixed contact, and a second fixed contact, the two fixed conductive plates are symmetrically arranged with an end extending out of the base, the first fixed contact is disposed on any one of the two fixed conductive plates, the second fixed contact is disposed on another one of the fixed conductive plates;
• the movable contact assembly comprises a movable spring plate, a first movable contact, and a second movable contact, the movable spring plate has a gap formed by inwardly extending an end thereof, the first movable contact and the second movable contact are disposed on the movable spring plate, installed on two sides of the gap, and configured to be corresponsive to the first fixed contact and the second fixed contact respectively, the movable spring plate comprises a connection section defined on an end away from the first movable contact and the second movable contact, the connection section is linked by the link assembly to allow the first movable contact and the second movable contact to contact with or detach from the first fixed contact and the second fixed contact;
• the base comprises a barrier block disposed between the two fixed conductive plates, the movable spring plate is set across the barrier block, so that a stroke movement of the first movable contact and the second movable contact takes place on two sides of the barrier block, and the barrier block comprises a strike-arc magnet, and
• the movable spring plate comprises an arc receiving portion, and the arc receiving portion comprises the connection section and two discharge sections arranged symmetrically, the two discharge sections attract the electric arc, the strike-arc magnet guides the electric arc to stretch in a direction towards the arc receiving portion to reduce an energy density of the electric arc, and the two discharge sections of the arc receiving portion attract the stretched electric arc, so that the arc receiving portion receives remaining energy of the electric arc to extinguish the electric arc.