An integrated electromechanical device is described, including a support body, a first and a second fixed contact, a first, second, third, and fourth variable position contact, a first and a second control circuit, and a first, second, third, and fourth signal conductive terminal. A first control conductive terminal is connected to the first control circuit, and a second control conductive terminal is connected to the second control circuit. The first, second, third, and fourth variable position contacts and the first and second fixed contacts are arranged such that, in any positioning configuration of the first and second and third and fourth variable position contacts, the first and second fixed contacts are in a condition of electrical isolation therebetween. Connection end regions of the first and second control conductive terminal are on a first connection plane, and connection end regions of each signal conductive terminal are on a second connection plane.

A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.

A contact device of the present disclosure includes a fixed terminal, a movable member, a regulating member, and a heat transmission structure. The fixed terminal includes a fixed contact. The movable member includes a movable contact and is configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact. The regulating member is configured to be in contact with the movable contact when the movable member is in the open position. The heat transmission structure is configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member.

Provided is a terminal of a relay, by which defective sealing in the relay can be prevented. A movable terminal of the relay has: a first plate including a first inner surface, a first outer surface opposed to the first inner surface, and a first through opening which opens to the first inner surface and the first outer surface; a second plate including a second inner surface, a second outer surface opposed to the second inner surface, and a second through opening which opens to the second inner surface and the second outer surface; and a folded part which connects the first plate to the second plate. The first through opening is partially overlapped with the second through opening, and the second inner surface is partially exposed to the first through opening.

A power distribution unit includes a housing having walls defining a main cavity provided at a first side and a secondary cavity provided at a second side. The power distribution unit includes a main contactor received in the main cavity having first and second fixed contacts and a movable contact movable between a mated position and an unmated position to electrically connect the first and second fixed contacts. The main contactor includes a coil assembly energized to move the movable contact. The power distribution unit includes a pre-charge assembly received in the secondary cavity having a control circuit board, a pre-charge resistor coupled to the control circuit board, and a pre-charge switch coupled to the control circuit board. The power distribution unit includes a cover coupled to the housing to enclose the pre-charge assembly in the secondary cavity.

A high-voltage DC relay with an auxiliary contact, includes two stationary contacts, a movable contact piece, a pushing rod, a coil assembly, a movable iron core and an auxiliary contact, the movable iron core is disposed in the coil assembly and is capable of moving up and down and is fixedly connected with the pushing rod; the movable contact piece is movably connected with the pushing rod and cooperates with the two stationary contacts; the auxiliary contact includes two auxiliary springs, each of the two auxiliary springs is provided with a lead-out pin, the pushing rod is provided with an insulating portion and a conductive portion which are adjacent to each other in a vertical direction, as the pushing rod is moved up and down, the two auxiliary springs clamp the conductive portion or the insulating portion of the pushing rod to make the auxiliary contact close or open.

An electromagnetic relay 1 includes: a base 28; a pair of fixed contact terminals 22 each including a fixed contact 38 and a first fulcrum 22d fixed to the base; a movable contact spring 18 including a pair of movable pieces, each of the movable pieces including a movable contact 36 contacting and separating from the fixed contact; an armature 16 that is coupled with the movable contact spring, and moves the movable contact spring by a rotary motion around a second fulcrum 16e; an electromagnetic device 31 that drives the armature; and a permanent magnet 12 that is arranged between the pair of fixed contact terminals and between the pair of movable pieces, and generates a magnetic field; wherein the first fulcrum and the second fulcrum are arranged mutually in opposite directions with respect to the movable contact or the fixed contact.

A contactor including a pedestal. The pedestal is of a step structure having notches in two ends. The step structure includes a first step and a second step from bottom to top and is covered with a cover body having a matched shape. A part, which protrudes out of the second step, at each of two ends of the first step, is provided with a first mounting groove in which a control terminal and a power terminal that are spaced apart from each other are mounted, and the cover body is provided with a first wiring port corresponding to the control terminal and a second wiring port corresponding to the power terminal. Each of two ends of the second step is provided with a second mounting groove in which an auxiliary terminal is mounted, and the cover body is provided with a third wiring port which corresponds to the auxiliary terminal mounted in the second mounting groove. The contactor has a simple structure, and wiring areas can be distinguished.

A contact device of the present disclosure includes a fixed terminal, a movable member, a regulating member, and a heat transmission structure. The fixed terminal includes a fixed contact. The movable member includes a movable contact and is configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact. The regulating member is configured to be in contact with the movable contact when the movable member is in the open position. The heat transmission structure is configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member.

A circuit breaker includes a pole unit with a moveable electrode and a fixed electrode. A resilient member is operably connected to a first end of the pole unit. A linkage extends from the second end of the pole unit and operably connects to the moveable electrode. A linear actuator is operably connected to the linkage and located away from the pole unit. A Thomson coil or other high-speed actuator is also operably connected to the linkage. A gap is provided between the pole unit and the linear actuator member when the resilient member is not extended. To open the electrodes, the high-speed actuator first acts on the linkage by pulling the movable electrode away from the fixed electrode. The linear actuator then actuates and increases the distance between the contacts of the breaker by pulling the pole unit toward it, closing the gap.