4832results about "Connection contact member material" patented technology

The invention discloses a cage type structure for superconducting joint protection and magnet support and a superconducting magnet, and relates to the technical field of superconducting magnets, and the cage type structure comprises a support column, a support ring, a cold conducting disc, a cold conducting disc reinforcing plate, an axial pull rod, a radial pull rod, a superconducting joint, a joint protection cover, a superconducting coil and a superconducting coil skeleton. According to the invention, the cage-type frame formed by the supporting columns, the supporting rings, the cold conducting discs and the cold conducting disc reinforcing plates is designed, and the axial pull rods and the radial pull rods are combined, so that the superconducting joint protection and the magnet support are realized through a simple structure; the radial pull rod is fixedly connected with the outer side of the supporting ring in the radial direction, the heat conduction distance between the superconducting coil and the outer Dewar assembly is prolonged, heat leakage is reduced, sufficient strength is achieved, meanwhile, the radial pull rod is located at the bottom of the cage type structure, the operation space is sufficient, and installation and maintenance are convenient.

A twist-lock clamp to attach a solar module to a rail system includes a spring between a top clamp and a t-nut, with features on the spring and top clamp to restrict rotation relative to each other. The t-nut includes features allowing rotation of about 90 degrees when the t-nut is inserted in a rail, but restrict rotation beyond about 90 degrees. The spring serves to hold the top clamp and t-nut apart while allowing the twist-lock clamp to resist sliding in the rail during installation.

The utility model discloses a mainboard grounding structure and electronic equipment. The mainboard grounding structure comprises a shell, a mainboard, a metal elastic sheet and a connecting body, the mainboard is arranged in the shell; the mainboard is provided with a mainboard grounding part; the metal elastic sheet comprises a fixing part; the mainboard grounding part is provided with a first through hole, and the fixing part is provided with a second through hole. One end of the metal elastic sheet is arranged on the mainboard grounding part, and the connector sequentially penetrates through the second through hole and the first through hole and is fixedly connected with the shell; the other end of the metal elastic sheet is used for abutting against the shell. The metal elastic piece, the mainboard and the shell are assembled to form a complete combined structure based on the connecting body and the first through hole, and the metal elastic piece abuts against the shell, so that the mainboard is grounded. The main board and the shell are assembled while the grounding structure is laid, the assembling process is effectively simplified, and the installation structure is simple. In addition, the space occupancy rate of the metal elastic sheet structure is low, and the space utilization rate in the shell is effectively improved.

A power distributor (200) with at least two incoming lines (101-103) and a method for manufacturing such a power distributor is suggested. Each incoming line has a conductor (106,107) and an individual screen (114). The conductors of the incoming lines are connected at a connection point (V1, V2), which is enclosed by a screen shield (201) that contacts each individual screen (114) of the incoming lines. The screen shield (201) is made from electrically conducting plastic material. Screen shields made from electrically conducting plastic material is easier to manufacture and less expensive than metal screen shields.

An example connector assembly includes a cage, a first liquid cooling tray, a second liquid cooling tray, and a pressuring spring. The cage includes a frame and partitioning walls. The frame and the partitioning walls define an insertion space. The first liquid cooling tray is provided to a top of the cage, with a lower surface of the first liquid cooling tray constituting an upper wall surface of the insertion space. The second liquid cooling tray is provided to a bottom of the cage, with an upper surface of the second liquid cooling tray constituting a lower wall surface of the insertion space. The pressuring spring is positioned within the insertion space.

The invention relates to the field of power construction, in particular to a power distribution line insulation grounding wire clamp live-line installation method, which comprises the following steps: S1, clamping a grounding wire clamp into an installation seat of a grounding wire clamp installation device, and enabling the grounding wire clamp installation device to reach a set installation height in an insulation rod handheld or unmanned aerial vehicle remote control mode; s2, the grounding wire is clamped into a wire clamping groove of a grounding wire clamp, a wire clamp bolt of the grounding wire clamp is automatically screwed through a locking mechanism, and the grounding wire is pressed into the wire clamping groove through a gland; s3, automatically overturning the insulating cover by a buckling mechanism, and covering the insulating cover outside the gland; s4, turning over a lock catch on the insulating cover to enable a spring bolt of the grounding wire clamp to be clamped into a lock hole of the lock catch; and S5, dismounting the grounding wire clamp mounting device to enable the grounding wire clamp mounting device to be separated from the grounding wire clamp to complete mounting. Automatic installation of the grounding wire clamp can be completed, and the operation risk is low.

The utility model discloses a duckbilled 220kv quick suspension grounding wire device, which relates to the technical field of grounding wire devices and comprises an insulating rod, an operating rod connected with the insulating rod, a screw rod connected with a clamping block, an arc-shaped block fixedly provided with a special-shaped rod and a connecting rod, a clamping block fixedly provided with a stop lever, a tongue-shaped rod connected with a first spring and a movable block, and an inserting rod inserted with an inserting groove. A spring II is fixed on the connecting block; the insulating rod is held by a hand, the cable is attached to the special-shaped rod through the special-shaped rod, the cable makes contact with the arc-shaped face of the tongue-shaped rod, the insulating rod is moved, the tongue-shaped rod moves downwards, the cable penetrates through the tongue-shaped rod, the tongue-shaped rod returns to the original position, the rotating disc is rotated to enable the arc-shaped block to clamp the cable, the arc-shaped block drives the special-shaped rod to press the tongue-shaped rod downwards, the inserting groove and the inserting rod are connected, and hanging of the grounding wire device is completed. The problem that a wire clamp of a grounding wire is not easy to hang due to a small opening is solved, the situation that the clamping effect is improved by increasing the dead weight of an insulating rod is avoided, and the burden caused by the insulating rod is reduced.

A retention assembly for coupling electrical components to a vehicle including a body configured to house the electrical components, the body defining a slot. The retention assembly further includes a grounding component received in the slot of the body and defining a first aperture and a fastener extending through the first aperture of the grounding component and configured to extend at least partially through a vehicle body to secure the body to the vehicle and provide an electrical pathway between the grounding component and the vehicle body.

To suppress reduction of an electrification performance (current value) in an end structure for a superconducting cable.SOLUTION: An end structure for a superconducting cable comprises at least a multilayer conductor 10 and an electrode part 30, and the multilayer conductor 10 is configured by laminating a plurality of superconducting wires 20, each presenting a tape shape, in a thickness direction of the superconducting wire 20. The electrode part 30 includes at least a plurality of slits 40. The multilayer conductor 10 is divided into a plurality of wire units 11, and stored in the slit 40 for each wire unit 11. When storing two superconducting wires 20 in the slit 40, it is preferable that directions of faces of the superconducting wires 20 are adjusted in such a manner that faces at the sides of a superconducting layer 23 and a stabilizing layer 24 constituting the superconducting wire 20 is brought into contact with or made close to an inner wall surface of the slit 40.SELECTED DRAWING: Figure 1

A mounting device selectively engageable to a module-level power electronics (MLPE) device includes a body with an aperture, a first arm, and a second arm. The first arm extends from a first side of the body at a first arm angle relative to the body. The second arm extends from a second side of the body at a second arm angle relative to the body. When the aperture receives a fastener able to engage an extension of the MLPE, the first arm makes contact with a first surface of a frame section of a photovoltaic (PV) frame and holds the extension against a second surface of the frame section, securing the PV frame to the extension via the interconnecting mounting device. The first arm may include teeth operable to engage the frame section. The mounting device may include a tab operable to engage the extension.

The invention discloses a multi-point grounding current limiting device, and relates to the technical field of power transmission line construction, the multi-point grounding current limiting device comprises a placement frame and further comprises a protection assembly, a grounding rod is fixedly installed at the bottom of the placement frame, a placement plate is fixedly installed on the inner wall of the placement frame, and a placement rod is fixedly installed at the top of the placement plate; lifting equipment is arranged on the circumferential surface of the placement rod, a signal receiver is fixedly mounted at the top of the lifting equipment, a current limiting assembly is arranged at the top of the placement plate, a fusing assembly is arranged at the top of the placement plate, a grounding connecting wire is arranged between the fusing assembly and the current limiting assembly, and a limiting frame is fixedly mounted at the top of the placement plate. According to the grounding current limiting device, the L-shaped plate moves downwards to drive the limiting plate to move downwards, the limiting plate moves downwards to make contact with the grounding connecting wire and extrude and fix the grounding connecting wire, the optimal state of the grounding connecting wire can be kept by avoiding bending or pulling, low grounding resistance is ensured, and therefore the efficiency and safety of the grounding current limiting device are improved.

The present invention relates to a grounding rod, comprising a grounding rod body (1), a grounding rod handle (2) for installing an electric hammer or a grounding cap, and a grounding rod head (3) for inserting into the ground, wherein the grounding rod handle (2) and the grounding rod head (3) are respectively arranged at two ends of the grounding rod body (1), the grounding rod body (1) is provided with a protruding spiral texture (6), the grounding rod handle (2) is provided with a grounding rod slot (5) for matching the installation of an electric hammer or a grounding cap, and the grounding rod head (3) is a cross-arranged four-edged steel knife structure (4). Compared with the prior art, the present invention has the advantages of rapid grounding, achieving grounding with a smaller grounding resistance, improving the efficiency of hammering into the ground, and being easy to carry.

The invention provides an ultra-high voltage anti-overturning spiral plain end grounding clamp, and relates to the technical field of power transmission line maintenance equipment, and the grounding clamp comprises an outer frame, one side of which is provided with an opening; the movable clamping block is arranged in the outer frame, and one end of the movable clamping block is connected with the side, opposite to the opening, of the outer frame in a sliding mode; the adjusting screw rod penetrates through the upper part of the outer frame and is in threaded connection with the outer frame, and the lower end of the adjusting screw rod is rotatably connected with the movable clamping block; the upper end of the telescopic rod is connected with the outer frame; and the balancing weight is connected to the lower end of the telescopic rod. The grounding wire clamp has the beneficial effects that the interference of external force is resisted by using the torque generated by the gravity of the balancing weight, so that the wire clamp does not turn over when being influenced by the external force such as natural wind power and the gravity of the grounding wire in the working process of clamping the grounding wire, and can be always kept in a vertical state; the safety and reliability of the automatic grounding work of the ultra-high voltage transmission line are improved, and the risk is reduced.

The invention belongs to the technical field of power equipment, and discloses a bus duct plugging device, which comprises a plugging box, a plugging box and a conductive contact piece, the plug box is used for being assembled on a shell of the bus duct; the jack box is provided with a grounding piece; the conductive contact piece is arranged on the grounding piece or the shell; when the plug box is plugged in the plug box, the grounding piece abuts against the shell through the conductive contact piece. The side, making contact with the grounding piece, of the conductive contact piece is a first metal layer made of the same material as the grounding piece, the side, making contact with the shell, of the conductive contact piece is a second metal layer made of the same material as the shell, and the first metal layer and the second metal layer are made of different metal. According to the bus duct plugging device, the contact resistance of the contact surface between the grounding piece and the shell can be reduced, the grounding reliability is ensured, the oxidation reaction of the grounding piece and the shell caused by contact of different metals is effectively prevented, and the long-term effectiveness of grounding is improved.

The invention discloses a coaxial superconducting joint structure suitable for a CICC conductor and a preparation method, and belongs to the technical field of superconducting magnet joint design and manufacturing. The two stainless steel tubes are respectively arranged at the tail end core parts of the two CICC conductors, the tail end axes of the two stainless steel tubes are aligned, and the end parts are tightly attached; the two copper pipes sleeve the peripheries of the two CICC conductor tail end superconducting cables, the tail end axes of the two copper pipes are aligned, and the end parts of the two copper pipes are tightly attached; the indium conducting layer is wound on the peripheries of the two copper pipes; the four fan-shaped copper sheets jointly wrap the periphery of the indium conducting layer; the two stainless steel shells wrap the peripheries of the four fan-shaped copper sheets, and the two ends of the two stainless steel shells are connected with the stainless steel armors at the tail ends of the two CICC conductors respectively. The CICC coaxial connector has the advantages that coaxial connection between the two CICC conductors is achieved, the occupied radial space is small, and the arrangement requirement of a narrow space is met. The superconducting joint structure has excellent resistance characteristics and low alternating current loss.

The utility model provides a spring-free type bushing end screen, which belongs to the technical field of bushing end screens and comprises a flange seat, an insulating sealing sleeve is embedded in an inner cavity of the flange seat and is clamped in the inner cavity of the flange seat through a locking component, and a locking thread is arranged at the end part, far away from the flange seat, of a binding post along the outer wall. The inner wall of the side, away from the flange hole, of the flange base is in threaded connection with a grounding piece, the grounding piece is arranged outside the locking thread in a sleeving mode, anti-skid lines are arranged on the outer wall of the grounding piece in the circumferential direction, external threads are formed in the bottom of the outer wall of the grounding piece in the circumferential direction, internal threads are formed in the top of the inner wall of the flange base, and therefore the grounding piece is in threaded connection with the top of an inner cavity of the flange base. After the grounding piece is in threaded connection with the flange seat, the end screen is in a continuous grounding state, stable operation of the transformer is guaranteed under the condition that overall stability is guaranteed, and the protection effect is enhanced.

The invention relates to a contact rivet (1), with a contact head (2), in particular cylindrical, which has an electrically conductive contact zone (4) projecting or recessed from an end face (3) of the contact head (2) for a contact spring element (12) for electrical ground contacting.

The purpose of the present invention is to improve the conductivity of a terminal while ensuring misalignment absorption performance, and to suppress deformation of the terminal inside a block body. This terminal block is provided with: a terminal that includes a plurality of laminated terminal plates; and a block body that is fixed to a device while holding the terminal. The terminal is formed in an elongate shape. The terminal includes: an intermediate joint portion in which adjacent terminal plates are joined to each other in an intermediate section in the longitudinal direction of the terminal; a joint connection portion in which adjacent terminal plates are joined to each other in a position separated from the intermediate joint portion in the longitudinal direction of the terminal; and a non-joint portion in which adjacent terminal plates are laminated in a non-joined state between the intermediate joint portion and the joint connection portion. At least a part of the intermediate joint portion is positioned inside the block body, the joint connection portion is positioned outside the block body, and at least a part of the non-joint portion is positioned outside the block body.

The invention discloses auxiliary safety equipment for a ground rod, which is applied to the field of power equipment and comprises a base, and a detection mechanism is arranged on the surface of the base; according to the invention, the wire of the grounding rod is connected with the hook, and after the hook is hooked on the metal cable, an internal circuit is triggered through the connecting terminal to form a loop, so that a closed circuit is realized; when the circuit is closed, the buzzer gives an alarm, and the main control chip sends a closed-loop signal to the alarm box through the communication module to realize state voice alarm information to inform that the grounding rod is normally hung on the metal cable, so that the purpose of high safety is achieved, and the grounding rod is convenient to use. By moving the clamping rod, the clamping rod is separated from the adjusting hole, after the handle rod is moved to the needed position, the clamping rod is loosened, the clamping rod is clamped with the adjusting hole under the action of the third spring, the length of the handle rod can be adjusted, and practicability and applicability are improved.

The invention belongs to the technical field of high-voltage line grounding equipment, and particularly relates to a lockable grounding wire clamp device mounted by an unmanned aerial vehicle and a method for introducing backflow in a high-voltage line into the ground, and the lockable grounding wire clamp device mounted by the unmanned aerial vehicle can be carried by the unmanned aerial vehicle to complete grounding operation of the high-voltage line in maintenance. The lockable grounding wire clamp device is time-saving and safe for on-site constructors, a unique locking and unlocking mechanism composed of a lock cylinder, a clamping jaw assembly, a spring bolt driving piece and an unmanned aerial vehicle mounting assembly enables a high-voltage wire to enter a high-voltage wire claw embracing area, and then high-voltage wire claw embracing can be completed under the self-gravity effect of the lockable grounding wire clamp device; according to the invention, connection and locking of the high-voltage line are realized, the locking mode is relatively reliable, unlocking can be realized only by pulling up the unmanned aerial vehicle mounting assembly, and safe grounding in adverse weather such as strong wind is realized. When the unmanned aerial vehicle needs to be taken down, unlocking can be achieved by connecting the unmanned aerial vehicle with the unmanned aerial vehicle mounting assembly and pulling the unmanned aerial vehicle mounting assembly upwards, and unlocking is convenient and fast.

The invention discloses a fan blade lightning arrester detection self-growth soft robot. A storage bin, a double-layer main body, a long steering mechanism, an auxiliary motor and a lead control motor are fixed in a base; the growth steering mechanism is composed of three gear pairs and three main motors, and the three gear pairs have a certain rotating speed difference by controlling the rotating speed of the three main motors, so that the growth direction of the double-layer main body is controlled; the storage bin is a double-layer cylindrical cavity and is used for storing a to-be-grown part of the double-layer main body, the non-grown double-layer main body in the storage bin is conveyed to the front end through the growth steering mechanism so as to grow, and a gap between the double-layer cylindrical cavity is used for allowing a grounding instrument lead to penetrate through for growth. According to the invention, the rapid, high-efficiency and safe detection of the fan blade is realized, the casualties of workers or large measurement errors caused by the precision of the detection equipment and manual operation errors are avoided, and the application possibility of the self-growing soft robot on the fan detection operation and maintenance equipment is provided at the same time.

The utility model provides grounding equipment for a fishing-light complementary photovoltaic power station, and relates to the technical field of water photovoltaic power generation. The structure comprises a prefabricated pipe pile, a metal connecting base and a metal supporting frame, the bottom end of the prefabricated pipe pile is inserted into an underwater soil layer, the top end of the prefabricated pipe pile is located on the water surface, and a steel bar in the prefabricated pipe pile extends out of the two ends of the prefabricated pipe pile; a containing cavity is formed in the metal connecting base, a sleeving opening leading to the containing cavity is formed in the metal connecting base, an inserting groove used for inserting a steel bar is formed in the inner top wall of the containing cavity, the metal connecting base can be arranged at the top end of the prefabricated pipe pile in a sleeving mode through the sleeving opening, and the steel bar at the end is inserted into the inserting groove to abut against the inner wall of the inserting groove; a sealing ring is arranged between the inner side wall of the containing cavity and the pile body of the prefabricated pipe pile, the metal supporting frame is suitable for installing photovoltaic power generation equipment, and the metal supporting frame is connected with the metal connecting base. The lightning protection device has the advantage of long period of validity of lightning protection.

The invention relates to the technical field of electric power operation and maintenance, in particular to an assembly type grounding device for electric power operation and maintenance, which comprises a grounding plate arranged at the top, a grounding rod arranged at the lower end of the grounding plate and a grounding head arranged at the lower end of the grounding rod, the grounding plate comprises a first flange plate arranged at the upper end, a second flange plate arranged at the lower end and connected with the grounding rod, and a grounding connecting sleeve arranged between the first flange plate and the second flange plate, a conductive sleeve is arranged in the grounding connecting sleeve, and the conductive sleeve is connected with a grounding wire arranged on the side face and a conductive rod arranged at the lower end; the conducting rod is arranged in the middle of the grounding rod and connected with the grounding plate, a grounding box is arranged at the upper end of the first flange plate, and a first motor and a winding assembly are arranged at the upper end of the grounding box in a left-right distribution mode. The assembly type grounding device has the advantages that the grounding part can be prevented from being exposed to cause touch and scratch, the safety is improved, the safety of the assembly type grounding device is guaranteed, and the safety of workers is better guaranteed.

The invention relates to the technical field of grounding devices, and provides a grounding device and a power system.The grounding device is used for connecting a three-phase wire to a grounding grid and comprises a supporting piece, a first conductive piece, a second conductive piece, a grounding assembly and a limiting assembly. The first conductive part is rotatably connected to the supporting part, the second conductive part is rotatably connected to the supporting part, the second conductive part and the first conductive part define a limiting cavity, the supporting part and a first wire in the three-phase wires are located in the limiting cavity, one end of the grounding assembly is connected to the first wire, and the other end of the grounding assembly is connected to the ground screen. The limiting assembly is rotatably connected to at least one of the first conductive piece and the second conductive piece, the limiting assembly is provided with a limiting part, and the limiting part is connected to at least one of a second wire and a third wire in the three-phase wires. According to the invention, the problems of complex operation and low operation efficiency in manual installation of the grounding wire on the three-phase wire can be solved.

The invention provides an unmanned aerial vehicle ground wire hanging and dismounting robot for medium and low voltage power transmission lines, which is an unmanned aerial vehicle and is provided with ground wire hanging and dismounting equipment at the bottom. The ground wire hanging and dismounting equipment comprises a mechanical arm with a quick-change male head, and further comprises a bistable hanging and dismounting device for fixing a ground wire through a ground cover plate. A quick-change female head is arranged at the tail end of the bistable hanging and dismounting device, and an electric push rod and a clamping jaw are arranged at the head end; when the unmanned aerial vehicle installs a grounding wire, the clamping jaw impacts a grounding hanging ring of a power transmission line through flying to trigger the hanging and dismounting triggering structure, the hanging and dismounting triggering structure drives the quick-change female head and the quick-change male head to be separated and meanwhile gathers the clamping jaw, and the grounding wire is hung at the grounding hanging ring through the bistable hanging and dismounting device separated from the unmanned aerial vehicle. The quick-change male head of the mechanical arm is used for clamping the bistable hanging and dismounting device at the grounding hanging ring, and then the electric push rod is driven to enable the clamping jaw to loosen the grounding hanging ring; the operation efficiency of hanging and detaching the ground wire can be improved, and efficient and safe unmanned operation is achieved.

The invention belongs to the technical field of superconducting wires, and relates to a connecting structure and a connecting method of superconducting tapes and a connecting superconducting wire. The invention relates to a connecting structure of REBCO superconducting tapes. The connecting structure comprises a first REBCO superconducting tape and a second REBCO superconducting tape, the to-be-connected areas of the first REBCO superconducting tape and the second REBCO superconducting tape are in a step shape, and the splicing angle of the to-be-connected areas is an acute angle. When the REBCO superconducting tape is connected through the connecting structure of the REBCO superconducting tape, the electrical transport performance of the connector is not affected by an intrinsic weak connecting structure of the REBCO layer in the vertical direction, pressure does not need to be applied, and the connecting process is conducted in an open environment.

According to the invention, a connector (1) for galvanically connecting a first terminal (2) of a magnetic resonance examination apparatus (4) with a second terminal (5) of the magnetic resonance examination apparatus (4), comprising a first superconductor line (8) with an end region (14) for attaching to the first terminal (2) and an opposite end region (16), a second superconductor line (10) with an end region (14) for attaching to the second terminal (5) and an opposite end region (16), a third superconductor line (12), and a metallic plate element (18) with a first surface (20) and a second surface (22) on opposite sides thereof, wherein the first superconductor line (8) and the second superconductor line (10) are each attached to the first surface (20) of the metallic plate element (18) with their respective opposite end region (16), the shape of the opposite end region (16) of the first superconductor line (8) and the shape of the opposite region (16) of the second superconductor line (10) have curved shapes, and the third superconductor line (12) is attached to the second surface (22) of the metallic plate element (18) wherein the end regions (14, 16) of the third superconductor line (12) have curved shapes and at least partially overlap with the opposite end region (16) of the first superconductor line (8) and with the opposite end region (16) of the second superconductor line (10), respectively. In this way, a robust connector for the magnetic resonance examination apparatus is provided.

The invention discloses a pile foundation external application device, a grounding pile foundation and a grounding system, the pile foundation external application device is cylindrical and comprises a base body layer, a transition layer and an external coating layer, the transition layer is wrapped by the external coating layer, the base body layer is wrapped by the transition layer, and the resistance of the transition layer is in index attenuation distribution from the resistivity of the base body layer to the resistivity of the external coating layer. Therefore, the substrate layer, the transition layer and the outer coating layer form a gradient conductive structure, the resistivity of the pile foundation external application device is in gradient distribution, the interface potential barrier is effectively inhibited, and the pile foundation grounding resistance is effectively reduced after the pile foundation external application device is externally applied to a grounding pile foundation, so that the grounding resistance of a grounding system is reduced, and the diversion performance of the grounding system is improved.