A direct current contactor includes a case and two groups of contact components disposed in the case. Each group of contact components includes two moving contacts connected to each other and two fixed contacts. The direct current contactor further includes a drive system configured to drive the moving contacts to move in a direction close to or away from the fixed contacts, so that the moving contacts are connected to or disconnected from the fixed contacts. The case has an arc-extinguishing cavity. A first baffle in the arc-extinguishing cavity divides the arc-extinguishing cavity into a first arc-extinguishing chamber and a second arc-extinguishing chamber. The contact components are respectively located in the first arc-extinguishing chamber and the second arc-extinguishing chamber. In other words, the two groups of contact components are integrated into two arc-extinguishing chambers of one arc-extinguishing cavity and perform connection/disconnection drive by using a single drive system.

A direct current contactor includes a case and two groups of contact components disposed in the case. Each group of contact components includes two moving contacts connected to each other and two fixed contacts. The direct current contactor further includes a drive system configured to drive the moving contacts to move in a direction close to or away from the fixed contacts, so that the moving contacts are connected to or disconnected from the fixed contacts. The case has an arc-extinguishing cavity. A first baffle in the arc-extinguishing cavity divides the arc-extinguishing cavity into a first arc-extinguishing chamber and a second arc-extinguishing chamber. The contact components are respectively located in the first arc-extinguishing chamber and the second arc-extinguishing chamber. In other words, the two groups of contact components are integrated into two arc-extinguishing chambers of one arc-extinguishing cavity and perform connection/disconnection drive by using a single drive system.

A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the insulating partition plate is disposed in a vertical plane on a side of the main movable piece, the auxiliary movable spring is on a side of the insulating partition plate opposite the main movable piece, and is disposed along the vertical direction, the insulating partition plate is configured to completely isolate the main movable piece and the auxiliary movable spring; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

A high-voltage DC relay of the present disclosure, including a housing, two main lead-out terminals, a main movable piece and a pushing rod component; and the relay further including two auxiliary lead-out terminals, an auxiliary movable spring, and an insulating partition plate, the insulating partition plate is disposed in a vertical plane on a side of the main movable piece, the auxiliary movable spring is on a side of the insulating partition plate opposite the main movable piece, and is disposed along the vertical direction, the insulating partition plate is configured to completely isolate the main movable piece and the auxiliary movable spring; the auxiliary movable spring is insulated from the movable assembly and fixed to the movable assembly through the insulating partition plate, so as to follow a movement of the movable assembly to achieve bridging with the two auxiliary lead-out terminals.

An electromechanical switch includes first and second stationary contacts and a movable contact. Each of the first and second stationary contacts has a respective protrusion at a mating end thereof. The movable contact defines a first depression and a second depression along a mating side thereof. The movable contact is reciprocally movable into and out of a closed position relative to the first and second stationary contacts. In the closed position, the mating side of the movable contact engages the mating ends of the first and second stationary contacts such that the protrusion of the first stationary contact projects into the first depression and the protrusion of the second stationary contact projects into the second depression.

An electromechanical switch includes first and second stationary contacts and a movable contact. Each of the first and second stationary contacts has a respective protrusion at a mating end thereof. The movable contact defines a first depression and a second depression along a mating side thereof. The movable contact is reciprocally movable into and out of a closed position relative to the first and second stationary contacts. In the closed position, the mating side of the movable contact engages the mating ends of the first and second stationary contacts such that the protrusion of the first stationary contact projects into the first depression and the protrusion of the second stationary contact projects into the second depression.

Disclosed is a magnetic latching relay capable of accurately positioning a magnetic circuit, comprising a magnetic circuit portion and a base, the magnetic circuit portion comprising a yoke, an iron core, an armature, and a bobbin, the iron core is inserted into a through-hole of the bobbin, and the yoke comprises two yokes, and one side of each of the two yokes is connected to the iron core respectively at the both ends of the through-hole of the bobbin, and the armature is fitted between the other side of each of the two yokes, the magnetic circuit portion is mounted on the base, with the axis of the through-hole of the bobbin in a horizontal manner; in at least one of the two yokes, a positioning convex portion is further provided on the outward face of the side of the yoke, positioning grooves are formed in at least one side wall to be engaged with the positioning convex portion of the yoke, to realize the positioning of the magnetic circuit portions on the base in the horizontal direction perpendicular to the axis of the bobbin through hole.

Disclosed is a magnetic latching relay capable of accurately positioning a magnetic circuit, comprising a magnetic circuit portion and a base, the magnetic circuit portion comprising a yoke, an iron core, an armature, and a bobbin, the iron core is inserted into a through-hole of the bobbin, and the yoke comprises two yokes, and one side of each of the two yokes is connected to the iron core respectively at the both ends of the through-hole of the bobbin, and the armature is fitted between the other side of each of the two yokes, the magnetic circuit portion is mounted on the base, with the axis of the through-hole of the bobbin in a horizontal manner; in at least one of the two yokes, a positioning convex portion is further provided on the outward face of the side of the yoke, positioning grooves are formed in at least one side wall to be engaged with the positioning convex portion of the yoke, to realize the positioning of the magnetic circuit portions on the base in the horizontal direction perpendicular to the axis of the bobbin through hole.

Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.

Provided is a relay having a structure for preventing deformation of a movable spring when it is caulked. A yoke of the relay has a protrusion for caulking inserted in the movable spring, and a bulge portion adjacent to the protrusion and having a height lower than a height of the protrusion. By providing the bulge portion to the yoke, the dimensional change in the caulking direction of the movable spring when the movable contact is caulked can be reduced.