In an embodiment a switching device includes at least two fixed contacts and one movable contact in a switching chamber and at least two auxiliary contacts, two spring contacts and a contact plate in the switching chamber, wherein each of the spring contacts contacts one of the auxiliary contacts with a first contact region and has a second contact region, wherein the contact plate is movable together with the movable contact, and wherein the contact plate is configured to contact the second contact regions of the spring contacts in a first switching state of the switching device and is configured to be arranged at a distance from the second contact regions of the spring contacts in a second switching state.

A connecting structure between lead-out pins of auxiliary stationary contacts and a yoke plate of a DC relay, includes a yoke plate and a plurality of auxiliary stationary contact lead-out terminal assemblies mounted on the yoke plate; each auxiliary stationary contact lead-out terminal assembly includes a lead-out pins, a glass material body and a kovar alloy part; the lead-out terminal, the glass material body and the kovar alloy part are connected into a whole by sintering, and the lead-out terminal and the kovar alloy part are insulated from each other by glass material; the auxiliary stationary contact lead-out terminal assembly is welded and fixed to the yoke plate through the kovar alloy part.

The present invention relates to a technology that monitors a normal operation state through whether the flow of minute current is maintained in real time when a latch relay is turned on and allows the latch relay to be forcibly turned off through current prestored in a supercapacitor when an off operation of the latch relay is not normally performed.

A reed switch including a cylindrical enclosure with two ends, a first blade and a second blade is disclosed. The first blade has a first lead, a first web, and a first contact, and the first web is bent at a first angle as compared to the first lead. The second blade has a second lead, a second web, and a second contact, and the second web is bent at a second angle as compared to the second lead. The first contact is disposed adjacent to the second contact with a gap between them.

A magnet reed switch assembly. The magnetic reed switch assembly includes a reed switch having a body and a pair of electrical contacts disposed in the body. A ring magnet has a bore, and a portion of the body of the reed switch is disposed within the bore, with the ring magnet positioned close to the pair of electrical contacts. The ring magnet is movable along the axis of the body between a first position and a second position. A plunger includes a proximal end coupled to the ring magnet and a distal end having a sensing magnet. When a ferrous target is disposed near the sensing magnet, the plunger moves toward the ferrous target causing the ring magnet to move from the first position to the second position, and the reed switch to move from an open state to a closed state.

A magnet reed switch assembly. The magnetic reed switch assembly includes a reed switch having a body and a pair of electrical contacts disposed in the body. A ring magnet has a bore, and a portion of the body of the reed switch is disposed within the bore, with the ring magnet positioned close to the pair of electrical contacts. The ring magnet is movable along the axis of the body between a first position and a second position. A plunger includes a proximal end coupled to the ring magnet and a distal end having a sensing magnet. When a ferrous target is disposed near the sensing magnet, the plunger moves toward the ferrous target causing the ring magnet to move from the first position to the second position, and the reed switch to move from an open state to a closed state.

The disclosure provides an ultra-small electromagnetic relay with high stationary contact positioning precision, comprises: a stationary spring, a bobbin and a base which are integrated by injection molding, the stationary spring comprises a stationary spring body on which stationary contacts are disposed and a leading-out terminal of the stationary spring extending from the stationary spring body to an outer part of the base; in the leading-out terminal, a first positioning part is disposed at a position corresponding to an edge of the base; in the stationary spring body, a convex extending part extending outside the base is designed as a second positioning part; in the base, a through hole formed through the base of is provided at a position corresponding to a back surface of the stationary spring body on which the stationary contact is mounted, the back surface is designed as a third positioning part during injection molding.

A contactor (1) comprising a first contact member (3) fixed and connected to a first conductor (5) of an electrical circuit; a second contact member (7) connected to a second conductor (9) of the electrical circuit by a connector (11); wherein the second contact member moves between a break position, in which the first and second contact members are out of contact, and a make position, in which the first and second contact members are in contact; an actuator assembly (15) coupled to the second contact member such that actuation of the actuator assembly translates into movement of the second contact member; an electromagnetic arrangement comprising an electromagnetic coil (17) and at least a part of the actuator assembly, wherein, when the coil is energised, the coil generates a magnetic field and thereby the actuation assembly is caused to move under the influence of the magnetic field, which in turn causes the second contact member to move; a hermetically sealable enclosure (2); wherein the first and second contact members, the connector, and the actuation assembly are inside the enclosure; and the coil is outside the enclosure.

In an embodiment a switching device includes at least one stationary contact, a movable contact, an armature, a first permanent magnet, a second permanent magnet and a magnetic switch, wherein the movable contact is movable by the armature, wherein the first permanent magnet is attached to the armature, and wherein the second permanent magnet is arranged in a fixed position relative to the magnetic switch.

In an embodiment, a switching device includes at least one stationary contact, a movable contact, an armature, a permanent magnet and a magnetically-operated switch, wherein the movable contact is movable by the armature, wherein the permanent magnet is attached to the armature, and wherein the magnetically-operated switch is a Hall switch.