A magnetic latching relay comprises a metal insertion portion of a contact portion and a slot of a base. The metal insertion portion is composed of two segments having different depth corresponding to the slot; when one segment is fitted to bottom wall of the slot, a preset gap is formed between the other segment and the bottom wall. The slot is formed by two segments having different thickness corresponding to the metal insertion portion; when two side walls of one segment of the slot are adapted to two sides of thickness of metal insertion portion, two side walls of the other segment of the slot and two sides of thickness of metal insertion portion respectively form a preset gap; one segment of metal insertion portions cooperates with the other segment of the slot, and the other segment of the metal insertion portion cooperates with one segment of the slot.

Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit according to an embodiment of the present disclosure comprises a single magnet unit disposed on one side of a magnet frame, and a plurality of magnet units disposed on another side opposite to the one side. The plurality of magnet units are sequentially arranged in the longitudinal direction. One side of a magnet unit positioned between at least two of the plurality of magnet units and facing the single magnet unit is magnetized with the same polarity as that of one side of the single magnet unit facing the magnet unit. As such, magnetic fields in the direction of exerting repulsive forces on each other are formed in the central portion of the direct current relay. Accordingly, since the arc does not move to the central portion, damage to components disposed in the central portion can be prevented.

Disclosed are an arc path forming unit and a direct current relay comprising same. The arc path forming unit according to an embodiment of the present disclosure comprises a single magnet unit disposed on one side of a magnet frame, and a plurality of magnet units disposed on another side opposite to the one side. The plurality of magnet units are sequentially arranged in the longitudinal direction. One side of a magnet unit positioned between at least two of the plurality of magnet units and facing the single magnet unit is magnetized with the same polarity as that of one side of the single magnet unit facing the magnet unit. As such, magnetic fields in the direction of exerting repulsive forces on each other are formed in the central portion of the direct current relay. Accordingly, since the arc does not move to the central portion, damage to components disposed in the central portion can be prevented.

An electromagnetic relay includes an electromagnet, an armature configured to shift in response to a magnetic force generated by the electromagnet, a movable spring having a movable contact disposed thereon, a fixed spring including a first contact strip and a second contact strip, the first contact strip having a first fixed contact disposed thereon, the second contact strip having a second fixed contact disposed thereon, the first fixed contact and the second fixed contact facing the movable contact, and a linkage member configured to link the armature and the movable spring to shift the movable spring in conjunction with movement of the armature.

An electromagnetic relay includes an electromagnet, an armature configured to shift in response to a magnetic force generated by the electromagnet, a movable spring having a movable contact disposed thereon, a fixed spring including a first contact strip and a second contact strip, the first contact strip having a first fixed contact disposed thereon, the second contact strip having a second fixed contact disposed thereon, the first fixed contact and the second fixed contact facing the movable contact, and a linkage member configured to link the armature and the movable spring to shift the movable spring in conjunction with movement of the armature.

A printed circuit board (PCB)-mounted contactor including a PCB with planar surface, source and load terminals fixed to the PCB, and a contact. The contact is supported by the PCB and is movable between open and closed positions. Movement of the contact is parallel to the planar surface. Electrical assemblies having PCB-mounted contactors and methods of controlling current flow in electrical systems with PCB-mounted contactors are also described.

An electric switch is provided. The electric switch comprises a contact system, an actuation element, an engaging latch, and an actuator. The actuation element moves between an initial position and an actuation position to switch and changeover the contact system. The actuation element is located in a direction of the initial position by a force of a return spring. The engaging latch locks the actuation element in the initial position or the actuation position. A non-manual unlocking between the actuation element and the engaging latch is performed by the actuator.

An electric switch is provided. The electric switch comprises a contact system, an actuation element, an engaging latch, and an actuator. The actuation element moves between an initial position and an actuation position to switch and changeover the contact system. The actuation element is located in a direction of the initial position by a force of a return spring. The engaging latch locks the actuation element in the initial position or the actuation position. A non-manual unlocking between the actuation element and the engaging latch is performed by the actuator.

An electromagnetic relay includes a fixed contact part, a movable contact part, an armature, an electromagnet, and a base. The fixed contact part includes a fixed contact. The movable contact part includes a movable contact that faces the fixed contact. The armature is formed of a magnetic material and configured to bring the movable contact into or out of contact with the fixed contact. The electromagnet is configured to generate a magnetic field to move the armature. The base holds the fixed contact part, the movable contact part, and the electromagnet. The electromagnetic relay further includes multiple electrodes configured to generate an electric field between the electrodes.

An electromagnetic relay includes a fixed contact part, a movable contact part, an armature, an electromagnet, and a base. The fixed contact part includes a fixed contact. The movable contact part includes a movable contact that faces the fixed contact. The armature is formed of a magnetic material and configured to bring the movable contact into or out of contact with the fixed contact. The electromagnet is configured to generate a magnetic field to move the armature. The base holds the fixed contact part, the movable contact part, and the electromagnet. The electromagnetic relay further includes multiple electrodes configured to generate an electric field between the electrodes.