24results about "Polarised relays" patented technology

This electromagnetic relay comprises: an excitation coil (100) that forms a magnetic field when energized; a shaft (60) that passes through a center hole; one end-side movable sections (23); one end-side fixed sections (21, 22) that face the one end-side movable sections; a plurality of other end-side movable sections (43, 53); and a plurality of other end-side fixed sections (41, 42, 51, 52) that face the other end-side movable sections. As the shaft moves in a first direction from the other-end side toward the one-end side, the one end-side movable sections move in the first direction so that the one end-side movable sections are electrically connected to the one end-side fixed sections. As the shaft moves in a second direction from the one-end side toward the other-end side, the plurality of other end-side movable sections move in the second direction so that the plurality of other end-side movable sections are electrically connected to the plurality of other end-side fixed sections.

A system includes a circuit breaker and a switching module with a first module terminal for electrically connecting the switching module to an electrical circuit, and a second module terminal connected in electrical series with a first terminal of the circuit breaker. A switching device of the switching module is connected in electrical series between the first and second module terminals and is configured to switch between an ON state for allowing electrical current through the electrical circuit and an OFF state for opening the electrical circuit to stop current flow therethrough. The circuit breaker has a first housing that houses the breaker mechanism therein. The switching module has a second housing that houses the switching device therein. The second housing can be mounted to the first housing. The first and second housings together can be configured to fit in a physical envelope of a molded case circuit breaker (MCCB).

The present disclosure provides a high-voltage electromagnetic relay including a base portion and a movable spring armature member, wherein the base portion includes a base, a coil provided on the base, an iron core, and at least one fixed spring portion; the movable spring armature member includes at least one movable spring portion, an armature, a magnet steel, and a plastic body, the plastic body integrating the movable spring portion, the armature, and the magnet steel; a welded piece structure is provided at a middle portion of the movable spring armature member; and the movable spring armature member is attached to the top of the base portion via the welded piece structure; and The ends of the armature exposed outside the plastic body correspond to and cooperate with the pole surfaces at both ends of the iron core, the fixed spring portion cooperates with the movable spring portion, the movable spring portion includes two movable spring pieces and a conductive piece, the two movable spring pieces are each integrally molded with or electrically connected to the conductive piece, the movable spring portion is located above the armature, and the two movable spring pieces are respectively located above both sides of the armature in the width direction, the conductive piece straddles the armature, and the conductive piece and the two movable spring pieces are located on the same side of the welded piece structure.

An electromagnetic actuator comprises a first polar plate 101 having a first head portion 111, a second polar plate 102 spaced apart from the first plate and having a second head portion adjacent the first head portion, a permanent magnet 104, and an armature 103. The armature is movable between a closed position where it contacts the head portions and an open position where it does not contact the head portions. The plates each comprise an opening window 131 or cutout passing therethrough with an upper bridge 115 disposed on one side of the window and a lower bridge 116 disposed on an opposite side. The window of the first plate is aligned with the window of the second plate. The height H1 of each upper bridge and the height H2 of each lower bridge are dimensioned such that 0.5 x H1 ≤ H2 ≤ 5 x H1. At least part of the upper and lower bridges may be magnetically saturated by the permanent magnet when the armature is in the closed position. A coil 106 may be wound around the plates and pass through the window so that a current flowing through the coil reduces the magnetic holding force of the permanent magnet. Figures 1 and 4

A bi-stable contactor assembly 100 which includes one or more fixed contacts 102, 104; a moveable contact 106; an actuator; a solenoid 120 configured to induce a first magnetic field that actuates movement of a plunger 108 within a plunger tube 110 to change the position of the moveable contact 106; and a permanent magnet 150 located outside of the arc chamber 152 and magnetically coupled to the plunger 108 through a top core 130 that defines an end of the plunger tube 110. The magnet 50 generates a second magnetic field that, together with the top core 130 and the plunger 108, forms a latching magnetic circuit configured to hold the plunger 108 in a position corresponding to the closed state in the absence of current in the coil. The latching magnetic circuit is arranged in parallel with a drive magnetic circuit that includes the coil and the plunger.

Provided is a relay having a structure capable of ensuring a sufficient insulation distance even with a small size. This relay includes: a base mold part having an electromagnet; an armature mold part having a movable contact spring provided with a movable contact capable of coming into contact with and separating from the base mold part in conjunction with the operation of the electromagnet; a pair of make terminals provided to the base mold part and each having a make fixed contact; and a base spring formed integrally with the base mold part and conductively connected to the movable contact spring. A pair of contact sets constituted by each of the make fixed contacts and the movable contact are arranged in series via the base spring.

A power relay having an actuator with a microelectromechanical system stator assembly and a plunger assembly that moves along a central longitudinal axis between a first position and a second position, the plunger assembly including a plunger that includes a pair of ferromagnetic plates with a magnet disposed therebetween, and a first ferromagnetic plate of the pair of ferromagnetic plates disposed between a first ferromagnetic layer and a second ferromagnetic layer in the stator assembly, and a second ferromagnetic plate of the pair of ferromagnetic plates disposed between the second ferromagnetic layer and a third ferromagnetic layer in the stator assembly. Contacts formed from the ferromagnetic plates and ferromagnetic layers can include a micro-machined flexure array or stable liquid-solid electrical contacts.

A relay includes a base (10), a contact part (20) disposed on the base (10) and including two sets of movable contact part (20a), a push rod assembly (40) including a first push rod (410) and a second push rod (420) respectively connected to two sets of movable contact parts (20a), and a magnetic circuit part (30) including a coil assembly (310) and an armature (322) assembly (320). The armature (322) assembly (320) is pivotally connected to the base (10) around a pivot point, and includes a first driving end (324) connected to the first push rod (410) to form a first force point and a second driving end (325) connected to the second push rod (420) to form a second force point. The distance between the first force point and the pivot point is not equal to the distance between the second force point and the pivot point.

An electric switching relay (1) is disclosed, comprising a contact carrier (5), which is rotatably arranged in a housing or on a frame (2), and a drive piece (6, 6*), which is rotatably arranged therein, too, and which is connected to the contact carrier (5) by means of an elastically twistable connector (7). Powering an electromagnetic drive (8) of the switching relay (1) causes rotation of the drive piece (6, 6*) and in turn of the contact carrier (5) thereby causing closing or opening of switching contacts (3a, 3b, 9a, 9b). The connector (7) is elastically twisted and biased, forcing the contact carrier (5) in a rotational forward direction relative to the drive piece (6, 6*) in a state, in which the switching contacts (3a, 3b, 9a, 9b) are displaced. Moreover, a hybrid circuit breaker (20) is disclosed, the electro-mechanical bypass switch (21) of which is embodied as a switching relay (1) of the proposed kind.

A power relay having an actuator with a microelectromechanical system stator assembly and a plunger assembly moving along a central longitudinal axis between a first position and a second position, the plunger assembly including a plunger including a pair of ferromagnetic plates with a magnet disposed therebetween, and a first ferromagnetic plate of the pair of ferromagnetic plates is disposed between the first ferromagnetic layer and the second ferromagnetic layer in the stator assembly, and a second ferromagnetic plate of the pair of ferromagnetic plates is disposed between the second ferromagnetic layer and the third ferromagnetic layer in the stator assembly. The contact formed by the ferromagnetic plate and the ferromagnetic layer may include an array of micromachined flexure or a stable liquid-solid electrical contact.

A power relay having an actuator with a microelectromechanical systems stator assembly and plunger assembly that moves along the central longitudinal axis between a first position and a second position, the plunger assembly including a plunger that includes a pair of ferromagnetic plates with a magnet situated therebetween, and a first ferromagnetic plate of the pair of ferromagnetic plates is situated between first and second ferromagnetic layers in the stator assembly and a second ferromagnetic plate of the pair of ferromagnetic plates is situated between the second and third ferromagnetic layers in the stator assembly. Contacts formed by the ferromagnetic plates and ferromagnetic layers may include an array of micromachined flexures or a stabilized liquid-solid electrical contact.

A system includes a circuit breaker and a switching module with a first module terminal for electrically connecting the switching module to an electrical circuit, and a second module terminal connected in electrical series with a first terminal of the circuit breaker. A switching device of the switching module is connected in electrical series between the first and second module terminals and is configured to switch between an ON state for allowing electrical current through the electrical circuit and an OFF state for opening the electrical circuit to stop current flow therethrough. The circuit breaker has a first housing that houses the breaker mechanism therein. The switching module has a second housing that houses the switching device therein. The second housing can be mounted to the first housing. The first and second housings together can be configured to fit in a physical envelope of a molded case circuit breaker (MCCB).

Introduced here is an electromechanical actuator that includes a stator assembly with a chamber partially defined therethrough along a central longitudinal axis and a plunger assembly that is situated in the chamber and, in operation, moves along the central longitudinal axis between different positions. The stator assembly can include a pair of contacts that have an opening therebetween and a trinity of ferromagnetic layers with coils situated therebetween. The plunger assembly can include a magnet. When current is applied to the coils, the trinity of ferromagnetic layers become magnetically polarized, thereby dictating the motion of the plunger assembly by magnetically attracting or repelling the magnet included in the plunger assembly. The plunger assembly may be stabilized by a flexure flexibly connecting the stator assembly and plunger assembly.

To provide an improved contact piece structure and a magnetic retention relay. [Solution] The contact piece structure includes two side-by-side movable contacts, each of which includes a contact piece portion, a movable contact, and a fixed contact, the contact piece portion includes a plurality of stacked contact pieces, with gaps between adjacent contact pieces, the movable contact and the fixed contact are provided at opposite ends of the contact piece portion, the movable contact and the fixed contact are provided at opposite ends of the contact piece portion such that when the movable contact and the fixed contact are closed, the two movable contacts form a parallel circuit structure, the movable contact and the fixed contact in one of the movable contacts correspond to the fixed contact and the movable contact in the other movable contact, and at least one of the movable contacts further includes a projection positioned in the gap and connected to at least one of the contact pieces

A system includes a circuit breaker and a switch module having a first module terminal for electrically connecting the switch module to an electrical circuit and a second module terminal electrically connected in series with the first terminal of the circuit breaker. A switching device of the switching module is electrically connected in series between the first module terminal and the second module terminal and is configured to switch between an ON state for allowing current to pass through the circuit and an OFF state for opening the circuit to stop current passing through the circuit. The circuit breaker has a first housing that houses the circuit breaker mechanism therein. The switch module has a second housing that accommodates the switching device therein. The second housing may be mounted to the first housing. The first housing and the second housing together may be configured to fit in a physical envelope of a molded case circuit breaker (MCCB).

A relay is provided. The relay comprises: an electromagnetic drive unit with an armature and a yoke; a first fixed electric contact; a contact arm comprising a first movable electric contact; and a connector coupling the armature to the contact arm. The armature and the yoke are both displaceable with respect to the first fixed electrical contact.

A system includes a circuit breaker and a switching module with a first module terminal for electrically connecting the switching module to an electrical circuit, and a second module terminal connected in electrical series with a first terminal of the circuit breaker. A switching device of the switching module is connected in electrical series between the first and second module terminals and is configured to switch between an ON state for allowing electrical current through the electrical circuit and an OFF state for opening the electrical circuit to stop current flow therethrough. The circuit breaker has a first housing that houses the breaker mechanism therein. The switching module has a second housing that houses the switching device therein. The second housing can be mounted to the first housing. The first and second housings together can be configured to fit in a physical envelope of a molded case circuit breaker (MCCB).

A short circuit current-resistant and arc-extinguishing DC relay comprises two stationary contact lead-out ends, a movable spring plate in the form of a flat plate, a push rod assembly, an upper fixed yoke, an upper follower yoke, and a lower armature. The upper fixed yoke is fixed to the push rod assembly and positioned above the movable spring plate in a location corresponding to a location between two movable contacts. The upper follower yoke is fixed to the push rod assembly and positioned above the movable spring plate in a location corresponding to the location between the two movable contacts. The lower armature is fixed to a bottom end surface of the movable spring plate. The upper fixed yoke, the upper follower yoke and the lower armature are respectively arranged in a width direction of the movable spring plate, and form two magnetic conductive loops in the width direction of the movable spring plate. The above arrangement can enhance electromagnetic attraction, thereby achieving a short-circuit current resistance up to the 16kA level for a product.

Disclosed is a switching device having an electromagnetic actuation device for driving a movable contact, which actuation device has an excitation coil for generating a magnetic field, a magnetic yoke for amplifying the flux density of the magnetic field, and a magnet armature which can be pulled from a starting position to a pulled position by the magnetic field and which is connected to the movable contact. The actuation device includes a locking element which at least partly consists of a ferromagnetic material and is arranged such that by virtue of the effect of the magnetic field, the locking element is brought from the unlocking position to the locking position. The magnetic yoke is designed to have a discontinuity when the locking element is in the locking position, and the discontinuity of the magnetic yoke is closed by the locking element when the locking element is in the unlocking position.

To provide a relay with a structure that ensures sufficient insulation distance even when it is small. [Solution] The relay 10 comprises a base molded portion 12 having an electromagnet, a contactor molded portion 14 having a movable contact spring 18 equipped with a movable contact 19 that can move toward and away from the base molded portion 12 in accordance with the operation of the electromagnet, a pair of make terminals 32 provided on the base molded portion 12, each having a make fixed contact 34, and a base spring 30 integrally formed with the base molded portion 12 and electrically connected to the movable contact spring 18, wherein a pair of contact sets, each consisting of a make fixed contact 34 and a movable contact 19, are arranged in series via the base spring 30.

An electrical switching relay (1) is disclosed, comprising a contact carrier (5) rotatably arranged in a housing or on a frame (2) and a drive (6, 6) also rotatably arranged in the housing or on the frame and which is connected to the contact carrier (5) by means of an elastic, twistable connection (7). Power is supplied to the electromagnetic drive (8) of the switching relay (1) such that the drive (6, 6) rotates and in turn the contact holder (5) rotates, causing closing or opening of the switching contacts (3a, 3b, 9a, 9b). In the separated state of the switch contacts (3a, 3b, 9a, 9b), the connecting piece (7) is elastically twisted and biased so as to push the contact holder (5) in a forward rotational direction relative to the driving piece (6, 6). Furthermore, a hybrid circuit breaker (20) is disclosed, the electromechanical bypass switch (21) of which is implemented as a switching relay (1) of the type proposed herein.

A relay with high action reliability includes a base part and a movable part that is swingable relative to the base part. The movable part includes a movable contact piece, an armature, and a first plastic body, and the movable contact piece and the armature are assembled into an integral piece through the first plastic body. The movable contact piece includes a movable contact body and a soldering lug structure. The soldering lug structure includes a connecting portion and a soldering portion, and the soldering portion is connected to the movable contact body through the connecting portion. The soldering portion includes a first soldering structure and a second soldering structure that are soldered to the base part; and the first soldering structure and the second soldering structure are at a same side of the connecting portion in a length direction of the armature.