598results about "Contact engagements" patented technology

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.

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.

A static contact unit (20) for a tap changer comprises a contact body (4), a pair of contact elements (5) and a spring element (6). The contact body (4) is configured to be arranged statically with respect to a movable contact (3) that is arranged at a moving shaft (1) of the tap changer. The two contact elements (5) are coupled to the contact body (4) configured to establish an electrical contact to the movable contact (3) of the moving shaft (1). The spring element (6) is coupled to both contact elements (5) inbetween with respect to a longitudinal axis (L1) of the moving shaft (1) configured to bias the contact elements (5) so that, with respect to a state in which the tap changer is assembled, the contact elements (5) are biased simultaneously in direction towards each other in sections at least.

One embodiment relates to a contactor assembly adapted to switch a power supply to a circuit having a power supply. The contactor assembly includes a housing defining an interior compartment. A current-carrying contact and an arc contact are located in an interior compartment of the housing. At least one arc contact has an overcurrent protection device located outside the interior compartment of the housing. When the actuator assembly is moved towards the closed position, the actuator assembly is electrically connected with the arc contact before being electrically connected with the current-carrying contact, and when the actuator assembly is moved towards the open position, after the electrical connection with the current-carrying contact is disconnected, before the electrical connection with the arc contact is disconnected, the actuator assembly is electrically connected with the arc contact after the electrical connection with the current-carrying contact is disconnected. The actuator assembly maintains an electrical connection with the arc contact.

The present application provides a contact comprising: a first contact member formed of a tungsten-containing material, the first contact member having an exposed surface and a first groove open to the exposed surface, the first groove having a surrounding sidewall and a bottom wall defining an interior of the first groove; a first metal layer on a bottom wall of the first recess and having a top surface below the exposed surface of the first contact member; a liquid metal layer formed of a material containing a gallium indium tin alloy, located only on the top surface of the first metal layer and extending over the exposed surface of the first contact member, and the liquid metal layer is compliant and displaced by pressure applied to the liquid metal layer, and return to the initial shape in response to removal of the pressure on the liquid metal layer.

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.

Switches (100, 200) for closing and opening an electrical circuit, comprising: - a first electrical current-carrying element (109a, 209a) and a second electrical current-carrying element (109b, 209b); - a plastic insulating housing (108a, 108b, 208) that holds the first electrical current-carrying element (109a, 209a) and the second electrical current-carrying element (109b, 209b); - an electric magnetic drive; and - a first electrical contact bridge (106a, 206a) and a second electrical contact bridge (106b, 206b) which are adjustable by the magnetic drive such that they electrically connect the first current-carrying element (109a, 209a) and the second current-carrying element (109b, 209b) and exert a contact force on the first current-carrying element (109a, 209a) and the second current-carrying element (109b, 209b) respectively; wherein the first electrical current-carrying element (109a, 209a) and the second electrical current-carrying element (109b, 209b) are designed and arranged such that a force flow of the contact forces generated by the first and second contact bridge (106a, 106b, 206a, 206b) runs via the first electrical current-carrying element (109a, 209a) and the second electrical current-carrying element (109b, 209b), and the contact forces generated by the first and second contact bridge (106a, 106b, 206a, 206b) cancel each other out, wherein the first and second contact bridges (106a, 106b, 206a, 206b) are each connected to an anchor (103a, 103b, 203a, 203b) via a connecting element (105a, 105b, 205a, 205b), preferably a connecting pin; and The electric magnetic drive includes a magnetic coil (101, 201) which is configured to attract the armature (103a, 203a) connected to the first contact bridge (106a, 206a) and the armature (103b, 203b) connected to the second contact bridge (106b, 206b) in opposite directions such that the first and second contact bridges (106a, 106b, 206a, 206b) are displaced by equal deflections, and wherein the first and second contact bridge (106a, 106b, 206a, 206b) as well as the armature (103a, 203a) connected to the first contact bridge (106a, 206a) and the armature (103b, 203b) connected to the second contact bridge (106b, 206b) are arranged symmetrically to a central plane which passes through the center of the magnet coil (101, 201) and perpendicular to its coil axis.

The invention relates to a leaf spring (10) for electrically contacting a plurality of contacts (20), which lie in a first plane and are insulated from one another, in each case, said leaf spring (10) comprising: a support body (11) for supporting on a surface lying in the first plane; a deformable body (12) connected to the support body (11); and a plurality of contact bridges (13) arranged on the deformation body (12), spaced apart from the support body (11) and insulated from one another, the deformation body (12) being designed to hold the contact bridges (13) in a second plane spaced apart from the first plane in an undeformed stable state; and elastically deforming in the direction of the first plane by a force (K) acting from the second plane to the first plane into a deformed, unstable or metastable state in which the contact bridge (13) lies in or on the first plane, the contact bridge (13) being each designed to electrically connect at least two mutually insulated contacts (20) in the deformed state.

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.

The utility model relates to a change-over switch, which comprises a base, a contact system, a driving mechanism and a cover plate arranged on the base, the cover plate covers the contact system and the driving mechanism, and the driving mechanism comprises a motor, a screw rod in linkage fit with the motor and a nut arranged on the screw rod. The contact system comprises a static contact seat arranged in the base, a plurality of static contacts respectively arranged on the static contact seat, a movable contact frame which is arranged in the base in a sliding manner and is in linkage fit with the nut, and a plurality of movable contacts which are arranged on the movable contact frame in a linkage manner and are matched with the plurality of static contacts; the moving contact comprises two moving contact pieces arranged in contact holes of the moving contact frame, a base plate arranged between the two moving contact pieces and two elastic pieces arranged between the two moving contact pieces and the moving contact frame respectively, and a contact clamping space matched with the static contact is formed between the two ends of the two moving contact pieces. The utility model has the advantages of simple structure, stable and reliable performance, good protection performance and long service life.

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.

To provide a relay that achieves both the short-circuit resistance capacity and ultimate breaking capacity.SOLUTION: A relay comprises an insulating cover, a pair of stationary contact lead-out ends, a stationary member, a movable body, a first magnetically permeable body, and a movable member. The insulating cover has a pair of first through holes communicating with a contact chamber. The stationary contact lead-out ends are pierced in the first through holes. The stationary member is provided in the contact chamber and fixedly connected to the insulating cover. The movable body is provided in the contact chamber and is movably connected to the stationary member. The first magnetically permeable body is provided in the contact chamber and connected to the movable body. The movable member is provided movably in the contact chamber, and has a movable contactor that is 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, 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 contactor.SELECTED DRAWING: Figure 4

A subsea disconnector (1) comprising: a first contact terminal (5) comprising an electrically conductive first flexible contact interface element (5a), a linear magnetic actuator (9) comprising: a yoke (9a) having an axial channel (9d) extending along a longitudinal axis of the subsea disconnector (1), a closing coil (11a) wound around the yoke (9a), an opening coil (11b) wound around the yoke (9a), wherein the opening coil (11b) is axially fully offset from the closing coil (11a), the opening coil (11a) being arranged axially further away from the first contact terminal (5) than the closing coil (11a) is from the first contact terminal (5), an axially movable pushrod (13) arranged in the axial channel (9d), the pushrod (13) comprising an electrically conducting moving contact (13a), a first magnetic plunger (15a) attached to the pushrod (13), a second magnetic plunger (15b) attached to the pushrod (13), arranged axially further away from the first contact terminal (5) than the first magnetic plunger (11a) is from the first contact terminal (5); a second contact terminal (7) comprising an electrically conductive second flexible contact interface element (7a) receiving the moving contact (13a) and being in electrical contact with the moving contact (13a), wherein the pushrod is configured to move between a closed position and an open position.

The invention relates to an energy-saving contact (1) comprising a fixed part (2) and a mobile part (3) able to move in a main direction (Z) between a contact position and a breaking position, the energy-saving contact (1) comprising a spring blade (8) fixed to the fixed part (2) and forming an electrical contact, as well as an end stop (10) mounted on the mobile part (3) and arranged so as to be distant from the blade (8) and to come to press against the blade (8) when the mobile part (3) is in the contact position. The fixed part (2) defines an orifice (11) through which the end stop (10) passes opposite the blade (8), the orifice (11) having an internal cross section substantially identical to an external cross section of the end stop (10), the end stop (10) being mounted on the mobile part (3) such as to be mobile translationally in a plane (XY).

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 invention discloses a multidirectional operation switch, a conductive structure provides an electrode, and when a conductive medium on the lower side surface of an elastic pad is in contact with an output pin of the conductive structure and an electrode pin beside the output pin, a corresponding signal circuit is connected with a working voltage. According to the multidirectional operation switch, the signal circuit can be printed on the multidirectional operation switch in the form of a printed circuit, and can also be fixed on the bottom plate for sealing the lower port of the shell, so that the existence form of the signal circuit is more flexible.