Abstract: A relay includes a housing, an electric contact system in the housing, an electromagnetic system in the housing, and a magnetic blowing arc-extinguish device. The electric contact system includes a static contact with a static contact portion and a movable contact with a movable contact portion. The electromagnetic system is configured to drive the movable contact to move between a closed position in which the movable contact is in electrical contact with the static contact and an opened position in which the movable contact is separated from the static contact. The magnetic blowing arc-extinguish device includes a permanent magnet statically provided near the static contact and configured to lengthen an electric arc between the static contact portion and the movable contact portion by an electromagnetic force to extinguish the electric arc.

Abstract: An electromagnetic system includes a magnetic yoke, a coil mounted in the magnetic yoke, a lower iron core disposed in a lower portion of the coil, a top plate disposed above the coil, an upper iron core having a lower portion disposed in the coil and an upper portion extending through the top plate, an armature disposed above the top plate and fixedly connected to the upper iron core, a magnetic isolation ring disposed between the upper iron core and the top plate, and a plurality of balls each rolling in one of a plurality of first curved grooves of the armature and one of a plurality of second curved grooves of the top plate. The upper iron core moves in a vertical direction. A force applied on the armature by the ball is inclined to a central axis of the upper iron core to drive the armature to rotate.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably disposed on the base, a movable contact fixed on the base, a static contact fixed on the base, a driving member connected between the armature and the movable contact, and an elastic pressing member fixed on the base. The elastic pressing member is pressed against an outer side of the armature so as to position the armature on the base and provide an auxiliary thrust to the armature.

Abstract: An auxiliary contact system of a contactor includes an auxiliary movable contact, an auxiliary static contact corresponding to the auxiliary movable contact, and a rotation member configured to be rotatable between a first position and a second position. In the first position, a main movable contact of the contactor is driven by the rotation member to an electric contact position in which the main movable contact contacts a main static contact and the auxiliary movable contact is in the electric contact position contacting the auxiliary static contact. In the second position, the main movable contact of the contactor is driven by the rotation member to an electric separation position where the main movable contact is separated from the main static contact and the rotation member pushes the auxiliary movable contact to the electric separation position separated from the auxiliary static contact.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably provided on the base, a movable contact fixed on the base, a static contact fixed on the base, and a driving member connected between the armature and the movable contact. The yoke is L-shaped. The yoke and the armature form a rectangular magnetic loop.

Abstract: An electrical contactor system includes a stationary contactor having a stationary contact, a moving contactor having a moving contact, a rotating member, a magnetic blow-out arc quenching device including a permanent magnet, and an isolation arc quenching device. The moving contactor is mounted on the rotating member and is rotatable between a connected position and a disconnected position. The moving contact is in electrical contact with the stationary contact when the moving contactor is rotated to the connected position, the moving contact is separated from the stationary contact when the moving contactor is rotated to the disconnected position. The permanent magnet is statically disposed in a vicinity of the stationary contactor for elongating an arc between the stationary contact and the moving contact by an electromagnetic force so as to extinguish the arc. The isolation arc quenching device pushes the arc toward the permanent magnet so as to force the arc to move to a vicinity of the permanent magnet.

Abstract: An electrical contact system includes a static contact, a movable contact movable between a switch-on position with the movable contact in electrical contact with the static contact and a switch-off position with the movable contact separated from the static contact, and an arc extinguishing device including an arc extinguishing member and a driving mechanism. When the movable contact is moved to the switch-on position, the arc extinguishing member is moved beyond a contact area between the movable contact and the static contact and the movable contact is allowed to be in electrical contact with the static contact. When the movable contact is moved to the switch-off position, the arc extinguishing member is moved between the movable contact and the static contact and the movable contact is electrically isolated from the static contact.

Abstract: An electrical contact system includes a pair of static contacts, a rotatable member disposed between the static contacts and rotatable about a rotation axis between a first position and a second position, and a movable contact mounted on and rotated with the rotatable member. A pair of opposite ends of the movable contact are in electrical contact with the static contacts when the rotatable member is rotated to the first position. The ends of the movable contact are separated from the static contacts when the rotatable member is rotated to the second position. The movable contact has a Z-shape and is slidably mounted on the rotatable member. The movable contact slides under a pushing force from a first static contact of the static contacts toward a second static contact of the static contacts to be in electrical contact with the second static contact.

Abstract: An electric contact system includes a moving member movable in a vertical direction, a movable contact mounted on and moved with the moving member, a static contact, and an arc extinguishing device including a movable bracket movable in a horizontal direction and an arc extinguishing sheet mounted on and movable with the movable bracket. The movable contact moves between a switch-on position and a switch-off position. When the movable bracket is moved to a first position, the arc extinguishing sheet is moved beyond a contact area between the movable contact and the static contact and allows the movable contact to electrically contact the static contact. When the movable bracket is moved to a second position, the arc extinguishing sheet is moved into the contact area between the movable contact and the static contact to electrically isolate the movable contact from the static contact.

Abstract: An electrical contact system includes a static contact having a static contact point, a movable contact having a movable contact point, a rotating member on which the movable contact is mounted, and an arc extinguishing device having an arc extinguishing sheet. The movable contact is rotatable with the rotating member between a switch-on position and a switch-off position. When the movable contact is rotated to the switch-on position, the arc extinguishing sheet is rotated beyond a contact area between the movable contact point and the static contact point, allowing electrical contact of the movable contact point with the static contact point. When the movable contact is rotated to the switch-off position, the arc extinguishing sheet is rotated into the contact area between the movable contact point and the static contact point, electrically isolating the movable contact point from the static contact point and cutting off an electric arc.

Abstract: A relay includes a housing, an electric contact system in the housing, an electromagnetic system in the housing, and a magnetic blowing arc-extinguish device. The electric contact system includes a static contact with a static contact portion and a movable contact with a movable contact portion. The electromagnetic system is configured to drive the movable contact to move between a closed position in which the movable contact is in electrical contact with the static contact and an opened position in which the movable contact is separated from the static contact. The magnetic blowing arc-extinguish device includes a permanent magnet statically provided near the static contact and configured to lengthen an electric arc between the static contact portion and the movable contact portion by an electromagnetic force to extinguish the electric arc.

Abstract: An electrical contactor system includes a stationary contactor having a stationary contact, a moving contactor having a moving contact, a rotating member, a magnetic blow-out arc quenching device including a permanent magnet, and an isolation arc quenching device. The moving contactor is mounted on the rotating member and is rotatable between a connected position and a disconnected position. The moving contact is in electrical contact with the stationary contact when the moving contactor is rotated to the connected position, the moving contact is separated from the stationary contact when the moving contactor is rotated to the disconnected position. The permanent magnet is statically disposed in a vicinity of the stationary contactor for elongating an arc between the stationary contact and the moving contact by an electromagnetic force so as to extinguish the arc. The isolation arc quenching device pushes the arc toward the permanent magnet so as to force the arc to move to a vicinity of the permanent magnet.

Abstract: 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.

Abstract: An electromagnetic system includes a magnetic yoke, a coil mounted in the magnetic yoke, a lower iron core disposed in a lower portion of the coil, a top plate disposed above the coil, an upper iron core having a lower portion disposed in the coil and an upper portion extending through the top plate, an armature disposed above the top plate and fixedly connected to the upper iron core, a magnetic isolation ring disposed between the upper iron core and the top plate, and a plurality of balls each rolling in one of a plurality of first curved grooves of the armature and one of a plurality of second curved grooves of the top plate. The upper iron core moves in a vertical direction. A force applied on the armature by the ball is inclined to a central axis of the upper iron core to drive the armature to rotate.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably disposed on the base, a movable contact fixed on the base, a static contact fixed on the base, a driving member connected between the armature and the movable contact, and an elastic pressing member fixed on the base. The elastic pressing member is pressed against an outer side of the armature so as to position the armature on the base and provide an auxiliary thrust to the armature.

Abstract: An electric contact system includes a moving member movable in a vertical direction, a movable contact mounted on and moved with the moving member, a static contact, and an arc extinguishing device including a movable bracket movable in a horizontal direction and an arc extinguishing sheet mounted on and movable with the movable bracket. The movable contact moves between a switch-on position and a switch-off position. The movable bracket is moved by the moving member between a first position and a second position when the movable contact is moved. When the movable bracket is moved to the first position, the arc extinguishing sheet is moved beyond a contact area between the movable contact and the static contact and allows the movable contact to electrically contact the static contact.

Abstract: An electromagnetic relay includes a base, a spool provided on the base, a coil wound on the spool, a yoke inserted into a hole formed in the spool, an armature movably provided on the base, a movable contact fixed on the base, a static contact fixed on the base, and a driving member connected between the armature and the movable contact. The yoke is L-shaped. The yoke and the armature form a rectangular magnetic loop.

Abstract: An electrical contact system includes a static contact having a static contact point, a movable contact having a movable contact point, a rotating member on which the movable contact is mounted, and an arc extinguishing device having an arc extinguishing sheet. The movable contact is rotatable with the rotating member between a switch-on position and a switch-off position. When the movable contact is rotated to the switch-on position, the arc extinguishing sheet is rotated beyond a contact area between the movable contact point and the static contact point, allowing electrical contact of the movable contact point with the static contact point. When the movable contact is rotated to the switch-off position, the arc extinguishing sheet is rotated into the contact area between the movable contact point and the static contact point, electrically isolating the movable contact point from the static contact point and cutting off an electric arc.

Abstract: An electrical contact system includes a pair of static contacts, a rotatable member disposed between the static contacts and rotatable about a rotation axis between a first position and a second position, and a movable contact mounted on and rotated with the rotatable member. A pair of opposite ends of the movable contact are in electrical contact with the static contacts when the rotatable member is rotated to the first position. The ends of the movable contact are separated from the static contacts when the rotatable member is rotated to the second position. The movable contact has a Z-shape and is slidably mounted on the rotatable member. The movable contact slides under a pushing force from a first static contact of the static contacts toward a second static contact of the static contacts to be in electrical contact with the second static contact.

Abstract: An electrical contact system includes: a static contact, a movable contact and an arc extinguishing device. The arc extinguishing device includes an arc extinguishing member and a driving mechanism for moving the arc extinguishing member. When the movable contact is moved to the switch-on position, the arc extinguishing member is moved beyond the contact area between the movable contact and the static contact so as to allow the movable contact to be in electrical contact the static contact; and when the movable contact is moved to the switch-off position, the arc extinguishing member is moved into the contact area between the movable contact and the static contact such that the movable contact is electrically isolated from the static contact to cut off the electric arc between the movable contact and the static contact. The arc extinguishing member may be driven by the driving mechanism to be quickly moved into the contact area between the movable contact point and the static contact point.