350results about "Contact engagements" patented technology

Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.

The utility model discloses a switch assembly and an electric tool, the switch assembly comprises a first installation member, a second installation member and a reset member which can be arranged in a relative pivoting manner, the first installation member is provided with a first trigger member, the second installation member is provided with a second trigger member, and the reset member comprises a plurality of pressure springs. In a first moving stroke in which the first mounting piece and the second mounting piece rotate relatively and approach each other, the first trigger piece and the second trigger piece approach each other, so that the electric tool is switched to a first working state, meanwhile, each pressure spring is pressed to be shortened and store energy, and in a second moving stroke in which the first trigger piece and the second trigger piece are far away from each other, the electric tool is switched to a second working state. And each pressure spring extends and provides reset force for driving the two to be far away, so that the electric tool is switched to a second working state. According to the utility model, the condition that the pressure spring is inclined and clamped along with the action of the switch assembly can be improved, and meanwhile, the spring force needing to be overcome is also reduced in the assembly process, so that the assembly operation difficulty is reduced.

A contactor device is provided that includes a movable contact configured to selectively open / close an electrical circuit. The movable contact is coupled to the shaft, and the shaft is retained in the closed position by the latch. The movable member is biased away from the latch. During an event, a biasing force that biases the movable member away from the latch is overcome. The movable member disengages the latch from the shaft, allowing the shaft to move to the open position. In an example, a movable member is disposed over an opening of a housing of the contactor device.

A power tool includes a housing, an electric motor, a switch, an operating element, a contact rod, a pressing block, and a reset element. The electric motor is disposed in the housing. The switch includes a trigger point for controlling the electric motor to be turned on. The operating element is operated so that the switch is triggered. The contact rod is supported by the housing, where the operating element is capable of pushing the contact rod to move. The pressing block is elastically connected to the contact rod and capable of being driven by the contact rod to push the trigger point. The reset element is connected to the contact rod.

The invention relates to an actuator-sensor device (1) which has at least one upper membrane (2), wherein at least one actuator electrode having a signal input, and at least one unoccupied region in the form of a through-gap, are arranged on the at least one upper membrane (2). The device has at least one central membrane (3), wherein the at least one central membrane (3) has at least one hole-like opening (4). Furthermore, the device (1) has at least one lower membrane (5), wherein at least one actuator electrode having a signal input, and at least one unoccupied region in the form of a through-gap, are arranged on the at least one lower membrane (5). Finally, the device (1) has at least one upper sensor electrode (6) having a head and having a supply line with a signal output, wherein the head of the at least one upper sensor electrode (6) and the supply line of the at least one upper sensor electrode (6) are arranged in the at least one unoccupied region, in the form of a through-gap, of the at least one upper membrane (2), and at least one lower sensor electrode (7) having a head and having a supply line with a signal output, wherein the head of the at least one lower sensor electrode (7) and the supply line of the at least one lower sensor electrode (7) are arranged in the at least one unoccupied region, in the form of a through-gap, of the at least one lower membrane (5).

The invention relates to a contactor comprising an electric motor (2) comprising a stator (200) and a rotor (201) and a commutator-brush system (3), the commutator-brush system comprising: a commutator (300) assembled on the rotor, the commutator comprising at least one electrically conductive portion (302) and at least one non-electrically conductive portion (303); and a pair of brushes formed of two brushes (304), wherein the brushes each have a contact surface configured to frictionally contact the commutator. The side surface of the commutator (300) comprises a conductive portion (302) and a non-conductive portion (303) of the commutator, wherein the commutator is free to rotate about an axis of rotation (X). The commutator-brush system (3) is configured to move between an electrically conductive position, in which the commutator electrically connects the pair of brushes, and an interrupted position, in which the commutator electrically isolates the pair of brushes (304), the commutator-brush system transitions from the electrically conductive position to the interrupted position by rotation of the commutator (300) under the action of the motor, and transitioning from the interruption position to the conductive position.

The present invention relates to a relay having an electromagnet, a plurality of springs having contacts which open and close in accordance with operation of the electromagnet and terminals, and a base which supports the springs, wherein at least one of the plurality of springs has a locked part which is locked on the base using resilience of the spring, and the base has a lock part which locks the locked part.

A fusible disconnect switch devices includes dual sets of switch contacts to connect or disconnect a current path through an overcurrent protection fuse with reduced arcing severity. Faster acting and longer contact path switch mechanisms are described providing satisfactory switching of DC circuits without excessive electrical arcing in a reduced physical package size.

The utility model belongs to the technical field of power supplies, and particularly relates to a direct-current voltage-stabilizing and current-stabilizing power supply which comprises a direct-current voltage-stabilizing and current-stabilizing power supply body, a plurality of air inlet cylinders are communicated with the left wall of the direct-current voltage-stabilizing and current-stabilizing power supply body, and a plurality of air outlet cylinders are communicated with the right wall of the direct-current voltage-stabilizing and current-stabilizing power supply body. A pair of limiting plates is fixedly arranged on the left side wall face and the right side wall face of the direct-current voltage and current stabilization power source respectively, a polished rod is fixedly arranged between the limiting plates, a plurality of sliding blocks are arranged on the polished rod in a sliding mode, a lead screw is rotationally arranged between the limiting plates, the lead screw is in threaded connection with the sliding blocks, and dustproof plates are fixedly arranged on the bottom faces of the sliding blocks. According to the utility model, through reverse translation of the plurality of slide blocks, the dustproof plate can be driven to shield the air inlet cylinder and the air outlet cylinder, so that external dust is prevented from entering the DC voltage-stabilizing and current-stabilizing power supply main body through the air inlet hole or the air outlet hole when the DC voltage-stabilizing and current-stabilizing power supply main body is in an idle state; and the frequency of cleaning the interior of the DC voltage-stabilizing and current-stabilizing power supply main body by workers is reduced.

A mobile contact (20) is provided for an electric current switching device (50), comprising:a first conductor blade (1) and a second conductor blade (2), extending in planes (P1, P2) parallel to each other and distant from each other, the conductor blades (1, 2) being linked in rotation about a common rotational axis (R),a first and a second spacer (3, 4) configured to maintain a minimum distance between the first blade (1) and the second blade (2),in whicha cross section (S1, S2) of each blade (1, 2) is shaped so as to:have an area equal to the area of a reference cross section (S1′, S2′) of rectangular shape and of the same length (a), andhave a quadratic moment greater than the quadratic moment of the reference cross section (S1′, S2′), the quadratic moment being determined in relation to an axis parallel to the transverse axis (T1, T2) of the blades (1, 2).

To provide a relay for achieving both the short-circuit resistance capacity and ultimate breaking capacity.SOLUTION: A contact container has a contact chamber and a pair of first through holes. The first through holes are communicated with the contact chamber. A pair of stationary contact lead-out ends are pierced in the pair of first through holes, respectively. A movable body is movable relative to the contact container. A first magnetically permeable body is provided in the contact chamber and includes a plurality of laminated magnetically permeable pieces. The plurality of magnetically permeable pieces are connected to the movable body. A movable member is movably provided in the contact chamber. The movable member includes a movable contactor. The movable contactor is to be brought into contact with or separated from the pair of stationary contact lead-out ends. The first magnetically permeable body is provided on a side of the movable contactor directed to the stationary contact lead-out ends. The first magnetically permeable body is movable relative to the movable member via the movable body, and adjusts the distance between the first magnetically permeable body and the movable member according to the magnitude of the value of current flowing in the movable member.SELECTED DRAWING: Figure 4

The application belongs to the technical field of arc extinguishing chamber of circuit breaker, and relates to a double-acting arc extinguishing chamber, a switching-on and switching-off method and a circuit breaker. The double-acting arc extinguishing chamber comprises a moving contact, a static contact and a transmission mechanism. The static contact comprises a static support, a static arc contact and a static main contact. The moving contact comprises a moving main contact, a moving arc contact and a nozzle. The transmission mechanism comprises an upper driving rod, an upper elbow arm rod, a lower driving rod, a lower elbow arm rod, a rotating rod and a driving rod. One end of the upper driving rod is hingedly connected to the upper part of the nozzle, and the other end is hingedly connected to the upper end of the upper elbow arm rod. One end of the lower driving rod is hingedly connected to the lower part of the nozzle, and the other end is hingedly connected to the lower end of the lower elbow arm rod. The lower end of the upper elbow arm rod is hingedly connected to one end of the rotating rod, and the upper end of the lower elbow arm rod is hingedly connected to the other end of the rotating rod. The middle position of the rotating rod is hingedly connected to one end of the driving rod, and the other end of the driving rod is connected to the static arc contact. The problem of vibration caused by the instability of the linear motion of the static arc contact and the quick-return characteristic of the existing structure due to the unbalanced structure of the transmission rod is solved.

A movable contact (20) is proposed for an electrical current interruption device (50), comprising: - a first conducting knife (1) and a second conducting knife (2), extending from parallel planes (P1,P2) separated by a distance between them, the conducting knives (1,2) being rotationally linked about a common axis of rotation (R), - a first and second spacer (3,4) configured to maintain a minimum distance between the first knife (1) and the second knife (2), wherein a cross-section (S1,S2) of each knife (1,2) is shaped to: - have an area equal to the area of ​​a reference rectangular cross-section (S1',S2') of the same length (a), and - have a second moment of area greater than the second moment of area of ​​the reference cross-section (S1',S2'), the second moment of area being determined with respect to an axis parallel to the transverse axis (T1,T2) of the knives (1,2). Figure of the abstract: Figure 3

Provided are a contact system, a contact unit and a circuit breaker. The contact system includes a moving contact assembly arranged in a shell and a pair of static contact assemblies. The moving contact assembly includes an arc isolation portion which is assembled rotatably. The arc isolation portion is provided with a contact groove inside. A pair of moving contact portions are arranged in the contact groove. Each static contact assembly includes a static contact portion which extends into the contact groove. The arc isolation portion rotates and drives the pair of moving contact portions to be in contact with or separated from the static moving portion in the contact groove. An edge of the arc isolation portion is also provided with a pair of mounting grooves which are communicated with the contact groove, and each mounting groove is at least reserved with a notch for the static contact portion to be placed at one end surface of the arc isolation portion. According to the present invention, when the contact system is assembled, the static contact portion of the static contact assembly is arranged correspondingly from the notch and can be placed in the contact groove at an appropriate angle without lifting the static contact portion, which simplifies the step of assembling the contact system, is convenient in operation, can achieve automatic assembly and is conducive to reducing the cost.

A circuit breaker for an electric current, said device comprising a movable member (2) provided with an electrical conductor (4), said device being configured to move said movable member (2) between a first position, referred to as armed, allowing current to flow in the conductor (4), and a second position, referred to as disarmed, interrupting said current flow, said device further comprising an actuator (12), configured to trigger a transition of the movable member (2) from the armed position to the disarmed position in the event of a fault on an electrical circuit in which said device is integrated, said device further comprising a reset member (36) having a manual actuation zone (38), configured to move the movable member (2) from the disarmed position to the armed position, thereby also triggering a reset of the actuator (12), said actuation zone (38) forming a visual indicator of a disarmed state of said device.

A relay is to be improved with regard to shock and vibration resistance, bounce behavior, and contact resistance. This includes: - a body on whose surface a first contact is arranged; - a housing element with a first external contact arranged in the relay such that in a first position of the body the first external contact is in contact with the first contact of the body, wherein the first external contact is provided with a first pressure element which exerts a pressure force on the first external contact with a component in the direction of the body; wherein the body can be displaced into a second position in a direction orthogonal to the component of the contact force, in which the first contact and the first external contact are no longer connected, wherein the movement of the body between the first and second positions in a first direction is effected by magnetizing a first coil connected to the housing element and thereby inducing a magnetic force on a first ferromagnetic element connected to the body.

The utility model provides a state keeping travel switch, which comprises a shell, an arrowhead-shaped trigger pin, a sliding contact with a hemispherical head, a sliding guide sleeve and a contact spring. The sliding contact and the sliding guide sleeve are conductive, and the shell and the trigger pin are non-conductive when the sliding contact and the sliding guide sleeve are connected into a circuit. In an initial state, the trigger pin extends out of the guide hole of the shell, the sliding contacts on the two sides are in contact and are pressed by the contact spring, and a circuit is kept to be conducted; when the upper end of the trigger pin bears a load, the trigger pin slides downwards and contracts into the shell, the sliding contacts on the two sides are separated, and the circuit is disconnected. The arrowhead part of the trigger pin and the hemispherical head part of the sliding contact are mutually clamped, so that the trigger pin is kept at a retraction position, and the travel switch is stabilized in an open-circuit state. When reset is needed, the reset tool is inserted from the reset hole of the shell to jack up the trigger pin, the sliding contacts on the two sides make contact again, and the circuit recovers the conducting state. The device is simple in structure, light in weight, low in clamping stagnation risk and high in working reliability, and has a state keeping function.

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 disclosed circuit-breaker for high-voltage applications includes at least one making and breaking unit having a first contact and a second contact for forming an electrically conductive connection, wherein at least one of the contacts is movable along an axially extending switching axis of the circuit-breaker between a closed position and an open position, and a first contact housing having a guiding passage surrounding and forming with the first contact a circumferential gap, which first contact housing has at least one recess surrounding the first contact, which at least one recess is open towards the first contact by means of a recess opening facing the first contact, wherein an extension of the recess opening along the switching axis is shorter than an extension of the at least one recess along the switching axis and / or two or more the recesses are arranged axially adjacent to one another.

This invention provides a snap-action type two-circuit switch that achieves high-speed response of metal components using a snap-action mechanism and ensures synchronization of switching between the circuits of the switch when the snap-action mechanism performs the switching. [Solution] The device comprises a housing 1 having a housing section, an operating member 2 that receives a pressing operation, a first fixing member 401, a second fixing member 402, and a third fixing member 403 arranged in parallel within the housing section at a predetermined interval, a metal member 3 having a contact portion 301 that is slidably connected to the second fixing member and the third fixing member, a snap action mechanism that drives the metal member when the operating member is pressed to a predetermined position, and a base 4 provided at the bottom of the housing. The snap action mechanism comprises a first drive body 5 on which the metal member is provided, a second drive body 6 located above the first drive body, and a spring 7 located below the first drive body.

The invention relates to a micromechanical switch having a substrate (10) with a main plane of extension (x, y), having a first electrical contact (11) and a second electrical contact (12), having a first deflectable micromechanical switch part (30) with a first contact bridge (31) for switching a first circuit (15), by means of which first contact bridge the first contact can be brought into electrical contact with the second contact, the invention relates to a first, second, third and fourth electrical contacts (21, 22), having a second deflectable micromechanical switching part (40), which has a second contact bridge (41) for switching a second circuit (25), by means of which the third contact can be brought into electrical contact with the fourth contact, the first, second, third and fourth electrical contacts being arranged on a substrate, wherein the first switching component (30) and the second switching component (40) are formed in the micromechanical functional layer (100) above the substrate and can be deflected in a direction perpendicular to a main extension plane (x, y) of the substrate.

Systems, methods and apparatuses provide for technology that includes a motor, a trigger assembly including a trigger member and an elastomer member mechanically coupled to the trigger member and moveable along a movement axis, wherein the elastomer member includes an electrically-conductive non-planar surface, a controller configured to operate the motor, and a circuit board oriented substantially perpendicularly to the movement axis, the circuit board including a plurality of conductive tracks facing the non-planar surface coupled to a resistor divider, and wherein controller is configured to vary a speed of the motor based on a number of the plurality of conductive tracks contacted by the non-planar surface of the elastomer member. The elastomer member may include a non-planar surface having a conductive central region, a conductive peripheral region and an insulative region positioned between the conductive central region and the conductive peripheral region.

The invention relates to a contact terminal (1) that is adapted to connect at least two contact tabs (2) and comprises a first tab reception volume (4) and a second tab reception volume (6), each being configured to receive one of the two contact tabs (2) in a respective insertion direction (I). The contact terminal (1) further comprises at least one contact spring (8), which extends continuously from the first tab reception volume (4) to the second tab reception volume (6) at one side thereof. The at least one contact spring (8) may be configured to be deflected resiliently in a direction perpendicular to the respective insertion direction (I) and away from the respective first and second tab reception volume (4, 6). The at least one contact spring (8) is attached to a holder (10). In order to provide a contact terminal (1) that can be easily adjusted to different applications and allows for a secure and stable connection even when subjected to stress, such as vibrations, the at least one contact spring (8) limits the first and second tab reception volume on one side at least partially. Therefore, the contact terminal (1) may be adapted to different shapes of the contact tabs (2), such as single sided, double sided, cylindrical or rectangular shapes.

The utility model discloses an isolation switch, and the isolation switch is characterized in that a first switch unit layer is internally provided with a first contact system, and the first contact system comprises a moving contact assembly and at least one group of static contact assemblies; the static contact assembly comprises a static contact blade, a first elastic piece and a second elastic piece; the first elastic piece and the static contact piece are fixed to form a first clamping opening, the second elastic piece and the static contact piece are fixed to form a second clamping opening, and the first clamping opening and the second clamping opening are formed in the two sides of the static contact piece in the first direction respectively. The first movable contact piece and the second movable contact piece are arranged at an interval in the first direction; the first movable contact piece is matched with the first clamping opening, and the second movable contact piece is matched with the second clamping opening. The first movable contact piece and the second movable contact piece are rotationally arranged around the same axis, so that the first movable contact piece and the second movable contact piece form clamping with the first clamping opening and the second clamping opening at the same time or release clamping at the same time after rotating; the current-carrying capacitor has the characteristic of good current-carrying performance.

Disclosed are a movable contact part and a direct current relay including the same. The movable contact part according to an embodiment of the present disclosure includes an upper holder and a lower holder. One holder among the upper holder and the lower holder has a coupling protrusion that protrudes toward the other holder. The other holder among the upper holder and the lower holder has a coupling groove into which the coupling protrusion is inserted and coupled. The lower holder is coupled to the inside of a housing, and the upper holder is coupled to each of the lower holder and the housing. Accordingly, the coupling between the upper holder and the lower holder is facilitated, and the coupled state can be stably maintained.