A magnetic flux assembly for closing a magnetic circuit of a relay and a relay. The magnetic flux assembly has a yoke and a U-shaped armature that is movable relative to the yoke. The yoke has a coil part that is in a coil and a flux conduction part that conducts the magnetic flux generated by the coil.

A magnetic system of an electromagnetic relay comprises a coil, an iron core, a yoke, and an armature. The iron core extends through the coil and has a first end and a second end opposite to the first end. A second part of the yoke is connected to the first end of the iron core and a first part of the yoke extends in a length direction of the iron core and is separated from the coil. The armature is disposed at the second end of the iron core and has a main body and a bending portion bent from the main body by a predetermined angle. The main body faces an end surface of the second end of the iron core. The bending portion is disposed at an inner side of an end portion of the first part of the yoke and faces the iron core.

A magnetic system of an electromagnetic relay comprises a coil, an iron core, a yoke, and an armature. The iron core extends through the coil and has a first end and a second end opposite to the first end. A second part of the yoke is connected to the first end of the iron core and a first part of the yoke extends in a length direction of the iron core and is separated from the coil. The armature is disposed at the second end of the iron core and has a main body and a bending portion bent from the main body by a predetermined angle. The main body faces an end surface of the second end of the iron core. The bending portion is disposed at an inner side of an end portion of the first part of the yoke and faces the iron core.

The present utility model provides a contactor, comprising: a housing, including a first side plate and a second side plate disposed opposite to each other; a static iron core and a movable iron core located inside the housing, a coil bobbin fitted on the static iron core, a coil wound on the coil bobbin, an elastic device located between the coil bobbin and the movable iron core, and a moving contact and astatic contact disposed opposite to each other, wherein the coil bobbin includes a contact end surface facing the movable iron core and a first fixing part and a second fixing part fixed to edges of the contact end surface, length directions of the first fixing part and the second fixing part are parallel to the first side plate and the second side plate, the first fixing part is in contact with and connected to the first side plate, and the second fixing part is in contact with and connected to the second side plate. The contactor according to the present utility model has a narrower width and saves installation space.

A hinge type bistable magnetic circuit structure, including a coil assembly, an L-shaped armature, an L-shaped yoke and a permanent magnet the L-shaped armature is configured on a side of the L-shaped yoke after rotating 180 degrees, and the two are together formed a frame-shaped profile, at two opposite diagonals of the frame-shaped profile, a junction is provided with a pre-set first gap; the L-shaped yoke includes a first and a second yoke portion, the coil assembly is arranged at and cooperated with the first yoke portion, one end of the permanent magnet is connected with the first yoke portion; the L-shaped armature includes a first and a second armature portion, the first armature portion is configured to cooperated with the other end of the permanent magnet so as to be able to perform a seesaw type movement, thereby forming a bistable magnetic circuit.

An electromagnetic device includes an excitation coil, a stator magnetically combined with the excitation coil, a movable element configured to, when current is flown in the excitation coil, be attracted to the stator by magnetic flux generated at the excitation coil to move in a first direction, and move to a position to be in contact with the stator, a yoke having a first end and a second end, and forming a part of a magnetic path for the magnetic flux generated at the excitation coil, and a yoke extension connected to the second end of the yoke and magnetically combined with the yoke, the stator, and the movable element. An end of the yoke extension in the first direction is positioned on a side of the first direction with respect to an end of the stator in the second direction.

Disclosed are an electromagnetic system and a contactor. The electromagnetic system includes a base and at least two electromagnetic units arranged inside the base. The base includes a wall forming an installation space for installing the electromagnetic units. Each electromagnetic unit includes a coil support used for winding a coil. A lug plate is arranged at a wire inlet end and a wire outlet end on one side, corresponding to the wall, of the coil support respectively. Each lug plate includes a connecting part. Openings are set in positions of the wall corresponding to the connecting parts of the electromagnetic units. The two electromagnetic units penetrate into the installation space from the openings through connecting wires arranged outside the wall and are connected to the connecting parts to form a connection. According to the present invention, the reliability of the product can be improved.

Provided is an electromagnetic switch device for starter in which an auxiliary relay is provided and which has a small size and can be easily manufactured. The electromagnetic switch device for starter includes: a main contact chamber forming a space in which a pair of main fixed contacts are located and a main movable contact can move; and a sub contact chamber forming a space in which a pair of sub fixed iron cores (A), (B) are located and a sub movable contact can move; and a cylindrical terminal block in which the main contact chamber and the sub coil are arranged so as to be adjacent to each other in the radial direction with a partition wall provided therebetween and separating the sub coil and the main contact chamber from each other.

Provided is an electromagnetic switch device for starter in which an auxiliary relay is provided and which has a small size and can be easily manufactured. The electromagnetic switch device for starter includes: a main contact chamber forming a space in which a pair of main fixed contacts are located and a main movable contact can move; and a sub contact chamber forming a space in which a pair of sub fixed iron cores (A), (B) are located and a sub movable contact can move; and a cylindrical terminal block in which the main contact chamber and the sub coil are arranged so as to be adjacent to each other in the radial direction with a partition wall provided therebetween and separating the sub coil and the main contact chamber from each other.

A solenoid device includes two electromagnetic coils, two stationary cores, two plungers and a yoke that surrounds the two electromagnetic coils. When a first electromagnetic coil is energized, magnetic flux flows through a first magnetic circuit that includes the first stationary core. When the two electromagnetic coils are energized, magnetic flux of the first electromagnetic coil flows through the first magnetic circuit, and magnetic flux of the second electromagnetic coil flows through a second magnetic circuit that includes a second stationary core. When energization of the first electromagnetic coil is stopped while maintaining energization of the second electromagnetic coil, the magnetic flux of the second electromagnetic coil continues to flow through the second magnetic circuit and a third magnetic circuit that includes the two stationary cores. A magnetism limiting portion is disposed in a portion of the second magnetic circuit that does not overlap the third magnetic circuit.