892results about "Contact engagements" patented technology

The present disclosure relates to a module (100) for generating signals, in particular signals for opening vehicle doors or flaps. The module (100) includes: a one-piece housing (102) having a plug region (106) and a switch region (104); at least one switch, in particular a microswitch (108), which is connected releasably to the switch region (104) of the housing; and electrical contacts (110, 112), which are releasably connectable to the at least one switch and extend from the switch region (104) at least partially into the plug region (106). The electrical contacts are configured in order to produce an electrical contact with an on-board plug for transmitting an electrical signal, wherein the housing (102) is preferably releasably connectable to a vehicle component, preferably an operator element housing, and particularly preferably a door lever housing.

According to the technical scheme, the contact assembly comprises an installation plate, a contact knife support, a static contact support and a contact knife, each static contact is provided with a cushion block with an inclined plane, each cushion block is provided with a buffer spring, each static contact support is provided with symmetrical static contacts, each static contact comprises a contact terminal, a support and a connecting rod, and each contact terminal is provided with an inclined plane. The contact terminal is fixedly connected to the static contact support, the support is fixedly connected to the static contact support, the support is movably connected with the connecting rod, the connecting rod is provided with a connecting rod protrusion extending and contacting with an inclined plane, the contact knife is provided with a cavity, the cavity is provided with a fastening device, and the static contact support is provided with a matched fastening base. Through the arrangement of the cushion block and the buffer spring, the impact on the contact knife is reduced, and the service life of the contact knife is prolonged. By arranging the linkable static contact, the static contact can clamp the contact knife to obtain reliable connection and is not easy to loosen.

The present invention discloses a three-position switch. An innovative fast direct-acting three-position switch is used, so that a moving grounding contact is separated from a moving isolating contact, and contact ablation after closing of a grounding short-circuit current does not affect flow of a main circuit, thereby improving closing capacity. During opening, the moving isolating contact and the moving grounding contact are respectively shielded by a shielding cover, and arc ablation of the contact does not affect insulating performance of a clearance. A three-phase moving isolating contact and a three-phase moving grounding contact are simultaneously driven by a transmission shaft, thereby ensuring synchronization of three phases. A linear motion of the moving grounding contact and the moving isolating contact is implemented through rotation of a three-position insulating spindle, and switching of actions such as closing, opening, and grounding of the three-position switch is implemented. The present invention further discloses a gas box using the switch.

The present invention discloses a vacuum parallel switch device, including: a main electrically-conductive loop, including an incoming line terminal bus, a bus connected to the incoming line terminal bus, a fixed isolating contact connected to an end of the bus, and a moving isolating contact assembly mating with the fixed isolating contact; and a vacuum parallel loop, including the incoming line terminal bus, the bus connected to the incoming line terminal bus, and a parallel vacuum arc-extinguishing chamber connected to an other end of the bus, where a rotating conductor assembly is connected to a moving end of the parallel vacuum arc-extinguishing chamber through a flexible connection, the rotating conductor assembly is connected to a lead-out conductor of the moving isolating contact assembly, and the moving end of the parallel vacuum arc-extinguishing chamber is driven through an insulating rotating member to implement opening or closing.

The contact mechanism comprises a moving contact assembly and a static contact group, the moving contact assembly comprises a contact support and a moving contact bridge, the moving contact bridge is driven by the contact support to move in the direction close to or away from the static contact group, the moving contact assembly further comprises two elastic devices, a connecting piece is arranged in the middle of the moving contact bridge, and the elastic devices are connected with the moving contact bridge. The first end and the second end of each elastic device are rotationally connected with the contact support and the connecting piece respectively, so that the two elastic devices are matched to be switched among a first balance position, a dead point position and a second balance position, and during normal opening and closing, the two elastic devices are kept at the first balance position with an included angle and apply pressure to the movable contact bridge; when a short-circuit fault occurs, the movable contact bridge is repelled by an electrodynamic force and drives the second ends of the two elastic devices to move relative to the contact support, and the two elastic devices are switched and kept at a dead point position or a second balance position forming an included angle to limit the movable contact bridge. The elastic device improves the reliability of the contact mechanism.

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 switch device includes at least one switch module and at least one welding protective plate. The switch module includes an enclosure for receiving a plurality of control terminals and a driving member therein. The control terminals respectively have an end projected from an end or a rear side of the enclosure. The driving member is controllable to change an electrically connected or disconnected state between the control terminals. The welding protective plate is provided on the enclosure at the end from where the control terminals are projected. The projected control terminals further extend through the welding protective plate to be welded to a circuit board. The welding protective plate can withstand a high temperature and is located between the switch module and the circuit board to form a thermal insulation and protection mechanism, protecting the switch module from external deformation and inner damage by the high temperature during welding.

A switching contact assembly for an electrical switching element includes a contact bridge, a base, and a spring assembly. The contact bridge is attached to the base with the spring assembly between the contact bridge and the base. The contact bridge attached to the base is resilient in a direction opposite a switching direction.

The invention discloses power conversion equipment. The power conversion equipment comprises a switching device, a power conversion circuit and a controller, the switch device comprises multiple layers of switches which are stacked in the extending direction of the rotating shaft, the multiple layers of switches comprise first layer switches and second layer switches, and the number of the first layer switches is smaller than that of the second layer switches; the through-current capability of the first-layer switch is greater than that of the second-layer switch; the first-layer switch is used for being connected with the first poles of the N photovoltaic strings at the same time, and each second-layer switch is used for being connected with the second poles of part of the N photovoltaic strings; when faults exist in the N photovoltaic group strings, the multiple layers of switches are all switched off in a linkage mode, and at most two or three photovoltaic group strings in the N photovoltaic group strings are connected in parallel. Therefore, different numbers of connected photovoltaic strings are adapted, the number of switch layers is saved, and safety is ensured.

A power shut-off module includes an insulating housing, two pairs of fixed contacts and two movable contacts rigidly attached to an item of movable equipment that is movable in translation in the housing between an open position and a closed position. The module includes an insulating shield device having a fixed end rigidly attached to the housing and a movable end rigidly attached to the item of movable equipment, and which has a length that is variable between an extended position when the item of movable equipment is in the open position and a retracted position when the item of movable equipment is in the closed position, in order to create a dielectric barrier between the fixed contacts of one and the same pair of fixed contacts.

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.

The present invention relates to a high-voltage load switch with magnetic blowout composite arc extinguishing capability, including a rear fixing plate and a front fixing plate, wherein between the rear fixing plate and the front fixing plate, an upper beam is mounted on the upper right, a lower beam is mounted on the lower right, and a grounding beam is mounted on the lower left; a plurality of upper insulators are arranged at intervals on the upper beam; a plurality of isolation contacts are mounted correspondingly on the plurality of upper insulators; and a copper-tungsten alloy arc-directing pin and an arc-directing closure assembly are provided on a lower side of each isolation contact. In the present invention, permanent magnets and arc chutes are used in combination for arc extinguishing. At the time of moving contact opening, an arc is blown to gaps in an arc-directing closure assembly under the action of magnetism, and the arc-directing closure assembly generates an electromagnetic force perpendicular to a moving trajectory of the arc, such that under the action of the electromagnetic force, the arc is split into multiple segments, lengthened and rapidly cooled, and energy of the arc is absorbed, forcing the arc be to extinguished or preventing its reignition after a zero crossing point, so the arc extinguishing effect is significantly improved. The present invention has the advantages of timely arc extinction response and strong arc extinction capability. The high-voltage load switch has a smaller overall volume and lowered cost, and is safer and more reliable.

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.

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 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.

The utility model discloses a vertical open type isolating switch, which comprises a static contact seat, a static contact, a static contact, a static contact and a static contact, and is characterized in that the static contact seat is provided with an open slot; a tool arm base; the tool arm driving shaft is movably mounted on the tool arm base; the tool arm moving seat is hinged to the tool arm base; the conductive tool arm is mounted on the tool arm moving seat and can rotate along with the tool arm moving seat until the conductive tool arm is clamped into the open slot, a radial bulge structure is arranged on the peripheral wall of the conductive tool arm, and the conductive tool arm can rotate along the axis of the conductive tool arm relative to the tool arm moving seat; the transmission mechanism enables the tool arm driving shaft and the conductive tool arm to be in transmission connection, and after the conductive tool arm is clamped into the open groove, the radial protruding structure on the conductive tool arm can tension the open groove. When the conductive knife arm starts to enter the open slot, the radial bulge structure does not tension the two opposite side walls of the open slot, so that the resistance is not large when the conductive knife arm enters and exits the open slot, and after the conductive knife arm is clamped into the open slot, the radial bulge structure continues to rotate and is gradually opened to tension the two opposite side walls of the open slot, so that the conductive knife arm is in tight contact with the open slot. And enough contact force is ensured.

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).