An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.

An electromagnetic actuator includes a fixed body, a moving part forming a magnetic core of the actuator and being movable in translation with respect to the fixed body between a retracted position and a deployed position, a magnetic piece forming a permanent magnet adjusted to generate a first magnetic force holding the moving part in the retracted position, and a coil adjusted to engender a second magnetic force opposed to the first magnetic force when the coil is supplied with an electrical excitation current. The moving part includes one or more notches formed in a body of the moving part.

A movable spring plate structure for defining an open or closed state with respect to a fixed contact includes a rigid spring plate contact portion, a soft spring plate warp portion, a soft spring plate force-applying portion and a movable contact. The soft spring plate warp portion is coupled to the rigid spring plate contact portion, and a first deformation gap is formed between the rigid and soft spring plate contact portions. The rigid spring plate contact portion is harder than the soft spring plate warp portion. The soft spring plate force-applying portion is disposed at the soft spring plate warp portion, and the movable contact is disposed at the rigid spring plate contact portion. A force applied to the soft spring plate force-applying portion drives the movable and fixed contacts into a closed state.

A movable spring plate structure for defining an open or closed state with respect to a fixed contact includes a rigid spring plate contact portion, a soft spring plate warp portion, a soft spring plate force-applying portion and a movable contact. The soft spring plate warp portion is coupled to the rigid spring plate contact portion, and a first deformation gap is formed between the rigid and soft spring plate contact portions. The rigid spring plate contact portion is harder than the soft spring plate warp portion. The soft spring plate force-applying portion is disposed at the soft spring plate warp portion, and the movable contact is disposed at the rigid spring plate contact portion. A force applied to the soft spring plate force-applying portion drives the movable and fixed contacts into a closed state.

A movable spring plate structure for defining an open or closed state with respect to a fixed contact includes a rigid spring plate contact portion, a soft spring plate warp portion, a soft spring plate force-applying portion and a movable contact. The soft spring plate warp portion is coupled to the rigid spring plate contact portion, and a first deformation gap is formed between the rigid and soft spring plate contact portions. The rigid spring plate contact portion is harder than the soft spring plate warp portion. The soft spring plate force-applying portion is disposed at the soft spring plate warp portion, and the movable contact is disposed at the rigid spring plate contact portion. A force applied to the soft spring plate force-applying portion drives the movable and fixed contacts into a closed state.

A movable spring plate structure for defining an open or closed state with respect to a fixed contact includes a rigid spring plate contact portion, a soft spring plate warp portion, a soft spring plate force-applying portion and a movable contact. The soft spring plate warp portion is coupled to the rigid spring plate contact portion, and a first deformation gap is formed between the rigid and soft spring plate contact portions. The rigid spring plate contact portion is harder than the soft spring plate warp portion. The soft spring plate force-applying portion is disposed at the soft spring plate warp portion, and the movable contact is disposed at the rigid spring plate contact portion. A force applied to the soft spring plate force-applying portion drives the movable and fixed contacts into a closed state.

An electromagnetic relay includes an electromagnet unit, an armature supported so as to be pivotable relative to a yoke by a hinge spring, a contact including a first contact and a second contact, which can switch, in accordance with pivoting of the armature, between a closed contact state and an open contact state, an elastic member which elastically deforms in accordance with pivoting of the armature, and applies a contact force between the first contact and the second contact in the closed contact state, and a magnet which generates an attractive force for retaining the armature in an open contact position corresponding to the open contact state, wherein the armature is retained in the open contact position by a resultant force of a restoring force applied to the armature by the hinge springe, and the attractive force of the magnet.

A magnetic latching relay with a microswitch, including an insulation case and a microswitch, the insulation case is formed by a base and a cover being fixedly connected, an armature assembly is pivotally connected on the base, the base is provided with an assembly zone for accommodating the microswitch at a position close to the armature assembly, the housing of the microswitch is abutted on the bottom of the assembly zone and is positioned by the assembly zone, a portion of the housing close to the armature assembly is suspended, the space below the portion gives way to the movement of the armature assembly and/or the push card, the cover is pressed the housing; the armature assembly is provided with a pressure rod extending toward the cover, and the pressure rod is pressed or released a trigger spring sheet of the microswitch when the armature assembly is rotated.

A magnetic latching relay with a microswitch, including an insulation case and a microswitch, the insulation case is formed by a base and a cover being fixedly connected, an armature assembly is pivotally connected on the base, the base is provided with an assembly zone for accommodating the microswitch at a position close to the armature assembly, the housing of the microswitch is abutted on the bottom of the assembly zone and is positioned by the assembly zone, a portion of the housing close to the armature assembly is suspended, the space below the portion gives way to the movement of the armature assembly and/or the push card, the cover is pressed the housing; the armature assembly is provided with a pressure rod extending toward the cover, and the pressure rod is pressed or released a trigger spring sheet of the microswitch when the armature assembly is rotated.

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.