45results about "Polarised relays" patented technology

To provide a relay capable of reducing a temperature rise.SOLUTION: A base of the relay has a middle area, a first contact area, and a second contact area; the middle area is arranged between the first contact area and the second contact area; the first contact area and the second contact area are spaced along the first direction; a pair of contact parts is arranged in the first contact area and the second contact area; each contact part comprises two sets of movable contact part; each set of movable contact parts comprises a movable contact piece, a movable contact, and a static contact; the movable contact piece has a first end and a second end in a second direction; the movable contact is arranged on the first end, and the static contact is arranged on the second end; the two movable contacts of each contact part correspond to the two static contacts, respectively; the second direction is perpendicular to the first direction; and a magnetic circuit part is arranged on the middle area of the base, and configured to drive four movable contact pieces of the pair of contact parts through a push rod assembly, thereby closing or disconnecting the movable contact and the static contact.SELECTED DRAWING: Figure 3

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

To provide an improved electromagnetic relay.SOLUTION: An electromagnetic relay includes: a base; a magnetic circuit part; an armature assembly; a push card; and a contact part. The magnetic circuit part, the armature assembly, and the contact part may be mounted in respective predetermined positions on the base so as to correspond the magnetic circuit part to the armature assembly. The push card is disposed between the armature assembly and the contact part. The armature assembly includes: an armature; and a plastic member covering a part of the armature, and a plastic push arm extending in a direction of the push card is provided in the plastic.SELECTED DRAWING: Figure 22

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.

The invention relates to a circuit breaker (12) with a mechanical switch (26) inserted into a main current path (18), which has a fixed contact (28) and a movable contact (34) connected to a contact bridge (32) movably mounted for this purpose. The circuit breaker (12) comprises an actuator (38) which is operatively connected to the contact bridge (32) and which has a first actuator unit (39) and a second actuator unit (56). The first actuator unit (39) is energized by means of a control circuit (42), and the second actuator unit (56) is connected in parallel to a resistor element (51) inserted into the main current path (18). The invention further relates to a motor vehicle (2).

Embodiments of this application provide a linear motion electromagnetic mechanism (100), a relay (1000), a power distribution box (2000), and a communication device. In a linear motion electromagnetic mechanism (100), a first bipolar charging permanent magnet (120) and a second bipolar charging permanent magnet (130) are respectively disposed on two opposite inner walls of a frame-shaped portion (110a) of a magnetic yoke (110), and a first parallel magnetic field (129) and a second parallel magnetic field (139) that are in opposite directions are formed between the first bipolar charging permanent magnet (120) and the second bipolar charging permanent magnet (130). Two semi-ring portions of a powered-on coil (142) are subject to co-directional ampere forces, and the coil (142) drives a movable rack (141) to perform translation motion. The coil (142) is bi-directionally powered on, so that the movable rack (141) moves bi-directionally, to implement switching work of the relay (1000). A first moving iron core (143) and a second moving iron core (144) are configured to form a holding force on the movable rack (141) when the movable rack (141) is at a switch-on position or a switch-off position, to limit a position of the movable rack (141). In the linear motion electromagnetic mechanism (100), one magnetic field cavity provides bipolar magnetic fields, and the powered-on coil (142) is subject to the ampere forces in the bipolar magnetic fields to drive the movable rack (141) to translate, so that a small quantity of parts are used, and an overall structural thickness is smaller.

For an electromagnetic drive unit (2) having an armature (3), a yoke (4) and a first coil (24), the armature (3) is mounted in a pivotal manner and comprises a first armature magnetic contact region (5), the yoke (4) comprises a first yoke magnetic contact region (7) and a second yoke magnetic contact region (8), the first yoke magnetic contact region (7) comprises a first contact region (9) and the second yoke magnetic contact region (8) comprises a second contact region (10), the first yoke magnetic contact region (5) being in contact with the first contact region (9) in a first state of the electromagnetic drive unit (2) and the second yoke magnetic contact region (8) being in contact with the second contact region (10) in a second state of the electromagnetic drive unit (2). The first yoke magnetic contact region (5) is in contact with the second contact region (10), and it is proposed that the first yoke magnetic contact region (7) and the second yoke magnetic contact region (8) are formed such that a first magnetic latching torque in a first state is higher than a second magnetic latching torque in a second state.

There is provided a contactor device for making or breaking a connection between a load and a power supply, comprising: a coil (12) having an interior space extending between a first coil opening and a second coil opening; a frame (14) at least partly surrounding the coil and having a first side (24) with a first frame aperture (26) at the first coil opening and a second side (28) with a second frame aperture (30) at the second coil opening; a plunger (16) extending through the interior space of the coil and through the first and second frame aperture and being provided with a first plate (18) at its first end and with a second plate (20) at its second end, wherein the first and second plate are located outside the frame and wherein the plunger is axially moveable from a first position to a second position by energizing the coil, and wherein the load is connected to the power supply in one of the first and second position and is disconnected from the power supply in the other one of the first and second position; a permanent magnet arrangement (22) located within the frame and outside the coil between the coil and the second side of the frame, with the plunger extending through the permanent magnet arrangement; a spring arrangement (36) for axially moving the plunger from the s0econd position to the first position when the coil is deenergized. The frame is made of a ferromagnetic material, and the plunger comprises a ferromagnetic portion (16A) substantially extending within the interior space of the coil towards the first frame aperture and a non-ferromagnetic portion (16B) located axially adjacent to the ferromagnetic portion and substantially extending within the permanent magnet arrangement.

A contactor (100) for a vehicle, a vehicle charging and power distribution system, a charging pile, and a vehicle are provided. The contactor (100) includes: a first wiring terminal (10), a second wiring terminal (20), a conducting bar (30), and a driving assembly (40). A first conduction section (31) and a second conduction section (32) of the conducting bar (30) are connected to each other and are revolvable with respect to each other; the driving assembly (40) drives the second conduction section (32) to move toward or away from the second wiring terminal (20); and the first wiring terminal (10) and the second wiring terminal (20) are arranged opposite to the conducting bar (30) in a first direction, the driving assembly (40) is arranged opposite to the conducting bar (30) in a second direction, and the first direction is orthogonal to the second direction.

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 high-voltage relay includes a magnetic drive assembly having a first yoke and a second yoke spaced apart from one another, and an armature driven by the magnetic drive assembly. The armature is a rocker having a first arm and a second arm extending away from the first yoke. The armature can be tilted between an open position and a switching position and is mounted on the first yoke. The first arm has a switching contact assembly. A magnetic circuit including the first yoke and the second yoke is closed in the switching position by the second arm.

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.

A connecting structure of electromagnetic relay for connecting lead-out piece (2) and base (1), a first slot (120) is defined on a side wall (12) of the base (1), a second slot (130) is defined inside the base (1); a middle section of the lead-out piece (2) is inserted into the first slot (120), an outer section of the lead-out piece (2) extends out of the base (1), and an inner section of the lead-out piece (2) is located in the base (1); the end of the inner section of the lead-out piece (2) is provided with a Z-shaped piece, and the Z-shaped piece is inserted and fitted in the second slot (130) of the base (1), so as to adjust a positioning position of the lead-out piece (2) in the base (1) by using a drop between two straight side sections of the Z-shaped piece.

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.

For an electromagnetic drive unit (2) with an armature (3), a yoke (4) and a first coil (24), the armature (3) is pivot-mounted and comprises a first armature- magnetic contact region (5), the yoke (4) comprises a first yoke-magnetic contact region (7) and a second yoke-magnetic contact region (8), the first yoke-magnetic contact region (7) comprises a first contact area (9) and the second yoke-magnetic contact region (8) comprises a second contact area (10), in a first state of the electromagnetic drive unit (2) the first armature-magnetic contact region (5) being in touch with the first contact area (9), and in a second state of the electromagnetic drive unit (2) the first armature-magnetic contact region (5) being in touch with the second contact area (10), it is suggested, that the first yoke- magnetic contact region (7) and the second yoke-magnetic contact region (8) are formed in such a way that a first magnetic holding torque in the first state is higher than a second magnetic holding torque in the second state.

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).

The embodiment of the present application provides a linear motion electromagnetic mechanism, a relay, a distribution box and a communication device. In the linear motion electromagnetic mechanism, a first bipolar permanent magnet and a second bipolar permanent magnet are respectively arranged on two opposite inner walls of the frame-shaped part of the yoke, and a reverse first parallel magnetic field and a second parallel magnetic field are formed between the first bipolar permanent magnet and the second bipolar permanent magnet. Two half-ring parts of the energized coil will receive Ampere forces in the same direction, and the movable frame is driven to translate by the coil. The coil is energized bidirectionally to make the movable frame move bidirectionally, realizing the switching operation of the relay. The first moving iron core and the second moving iron core are used to form a holding force on the movable frame to limit the position of the movable frame when the movable frame is in the closing position or the opening position. This linear motion electromagnetic mechanism provides a bipolar magnetic field by one magnetic cavity, and the energized coil is driven by the Ampere force in this bipolar magnetic field to drive the movable frame to translate, with fewer parts used and a smaller overall structure thickness.

The present application provides an electromechanical actuator comprising: a stator assembly having a chamber defined through the stator assembly along a central longitudinal axis portion; and a plunger assembly disposed in the chamber and movable in operation between different positions along the central longitudinal axis. The stator assembly may include a pair of contacts having an opening therebetween and ferromagnetic layers of three in a group with a coil therebetween. The plunger assembly may include a magnet. When an electric current is applied to the coil, the ferromagnetic layers of three as a group are magnetically polarized, thereby governing the movement of the plunger assembly by magnetically attracting or repelling magnets included in the magnetic plunger assembly. The plunger assembly may be stabilized by a flexure that flexibly connects the stator assembly and the plunger assembly.

An electromagnetically actuated robotic device comprises electromagnetic coils, a charge storage element, at least one processor, a plurality of electrically conductive paths, optionally in combination with sensor(s), all arranged in, and / or on, an elastomeric body structure. Shape, gait, and / or electrical properties shape of a robotic device may be altered by selective actuation of one or more electromagnetic coils. Methods for fabricating and using such devices are also provided.

An electromagnetic relay includes: an excitation coil (100) that forms a magnetic field when energized; a shaft (60) passing through the central bore; a one-end-side movable part (23); one-end-side fixed parts (21, 22) facing the one-end-side movable parts; a plurality of other end side movable parts (43, 53); a plurality of other-end-side fixed sections (41, 42, 51, 52) facing the plurality of other-end-side movable sections move in a first direction as the shaft moves in the first direction from the other end side toward the one end side, the one-end-side movable sections are electrically connected to the one-end-side fixed sections, and 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 parts move in the second direction, and the plurality of other-end-side movable parts are electrically connected to the plurality of other-end-side fixed parts.