10results about How to "Guaranteed electrical insulation performance" patented technology

The invention discloses a cable with a liquid cooling heat dissipation function. The cable comprises a closed cable section, an input cable section and an output cable section, the closed cable section is a completely-sealed cable section and is mainly used for liquid cooling heat dissipation of the cable; the input cable section is mainly used for transition connection between a power supply end and the closed cable section; and the output cable section is mainly used for transition connection between the closed cable section and a power utilization end. Through the synergistic effect of the insulating liquid cooling oil, the annular cooling fins, the complete through holes, the one-way through holes and the like, heat generated by operation of the cable can be rapidly absorbed and dissipated, local overheating is avoided, stable operation of the cable is ensured, and the heat dissipation efficiency is improved; compared with a mode of additionally arranging a spiral metal tube on the whole cable, the material and transportation cost is reduced, and the flexibility is not sacrificed; the high-quality material selection and the reasonable structural design ensure the electrical insulation performance, reduce the faults caused by the heat dissipation problem, and prolong the service life of the cable.

The invention relates to the field of cable materials, and provides an anti-UV environment-friendly photovoltaic solar cable which structurally comprises a cable core, an isolating layer, an insulating layer, a shielding layer and an outer layer. And the outer layer is prepared from a modified polyurethane and polyester composite material, and is obtained by adopting components such as surface modified titanium dioxide / magnesium hydroxide filler, montmorillonite, thermoplastic polyurethane and modified polyester master batch through a melting and extruding process. The cable has excellent flame retardance, ultraviolet resistance and durability, can keep stable performance under atrocious weather conditions, and meets special requirements of solar power stations, roof solar panel systems and photovoltaic agricultural facilities. The preparation method comprises the steps of preparing the cable core, the isolation layer, the insulation layer, the shielding layer and the outer layer step by step, and finally extruding and coating the outer layer through double screws to ensure that the cable is safe, environment-friendly and durable.

The application provides a cable core coating forming device for cable processing and relates to the technical field of cable core coating. The device comprises a main body, size adjusting assemblies are symmetrically arranged in the mold, a resisting plate is fixed at one end of the size adjusting assembly, a plurality of delivery wheels are symmetrically arranged in the mold, an arc adjusting assembly is arranged in the delivery wheel, a cleaning assembly is arranged in the fixing seat, and a plurality of cleaning wires are fixed at equal angles on one side of the cleaning assembly. The meshing transmission of the bevel gear and the bevel gear ring can realize the synchronous rotation of the two-side lead screws, and then drive the synchronous displacement of the moving column, the fixing frame, the delivery wheel and the resisting plate, so that the reliable straightening of the cable core can be realized, the central clamping of the cable core can be realized, the cable core can always move linearly along the center of the mold, and the technical defects of the eccentric coating layer, the uneven thickness and the like caused by the bending, the deflection and the shaking of the wire core are solved.

A copper bar fixing structure, a copper bar assembly, an electrical device, electric equipment and a vehicle, the copper bar fixing structure is an insulating member and comprises a fixing section and an isolation section, and the fixing section is suitable for connecting a plurality of copper bars arranged at intervals; the isolation section is connected with the fixing section and is suitable for wrapping at least one copper bar, close to the housing of the electrical device, in the plurality of copper bars. The plurality of copper bars which are arranged at intervals are connected through the fixed section, so that the plurality of copper bars are relatively fixed, the plurality of copper bars are connected into a whole through the copper bar fixing structure, and the copper bars are insulated from one another, so that the plurality of copper bars form a material and are mounted in a manner of moving one by one relative to the plurality of copper bars, the material quantity is reduced, and the production efficiency is improved. And the isolation section wraps at least one copper bar close to the shell of the electrical device, so that the electrical insulation performance can be ensured, and electrical abnormality is avoided.

The utility model relates to a kind of assembled conductive copper bar structure, specifically a kind of assembled high load flow distribution's conductive copper bar structure, including assembling seat, two sides on the assembling seat are provided with slot, the side of the assembling seat is provided with fixed seat and the holding plate of the side of the fixed seat, copper bar body is provided between the assembling seat and fixed seat, adjusting mechanism and the limiting fastening mechanism for being used to the assembling of copper bar body are provided in the assembling seat, the adjusting mechanism is cooperated with the transmission mechanism of the side of the fixed seat, the utility model is inserted into the cooperation between the assembling seat and fixed seat, realize the way of inserting into to the superposition fixed of multilayer copper bar, need not be on copper bar hole for bolt fixed, effectively simplify installation and dismounting process, avoid the copper bar structure strength weakening and stress concentration problem possibly caused by hole simultaneously, guarantee the structural integrity and mechanical properties of copper bar.

The utility model discloses a kind of efficient brushless hollow cup DC motor stator, including the stator core made of high saturation soft magnetic material, the middle part of the stator core is equipped with core inner hole, the inside of the core inner hole is equipped with cup type winding, and the inside of the core inner hole is attached with insulating film, the cup type winding is by several sheet hexagonal winding column and is rolled by coiling machine, the cup type winding is fixed on the inner wall of core inner hole by high temperature epoxy adhesive layer;The utility model not only guarantees the electrical insulation between stator core and winding cup, but also reduces the inconvenience caused by artificial paste insulating film, improves the quality reliability of stator, shortens manufacturing cycle, improves work efficiency;Relative to filling process, manufacturing cycle is shortened by 2 / 3.

The application relates to a heater assembly for quenching of a superconducting magnet and a superconducting magnet assembly, the heater assembly comprising a heating conductor and an insulator; the heating conductor comprises a stainless steel sheet and a connecting copper bar; the inner side of the two side vertical surfaces of the stainless steel sheet is provided with the connecting copper bar; the inner side insulator and the outer side insulator are connected together and wrap the lower area of the two side vertical surfaces of the stainless steel sheet; and the auxiliary insulator is attached to the two sides of the bottom edge. The superconducting magnet assembly is provided with the heater assembly for quenching of a superconducting magnet between the coil outer layer insulation and the structure reinforcing layer of the superconducting coil; the gap of the ring surface where the bottom edge and the auxiliary insulator are located is provided with a filling layer, and the outside is provided with a structure reinforcing layer. The application provides a specific structure design of the heater assembly, which can be reliably applied to the superconducting magnet assembly, ensures that the heater assembly can intervene in time when the superconducting coil quenches at low temperature, accelerates the coil quench, and thus guarantees the safety and cyclic use of the whole superconducting magnet.

The utility model discloses a waterproof connection assembly for cable joint relates to cable installation technical field. The waterproof connection assembly for cable joint, including the joint connecting piece, the joint connecting piece side fixedly connected with the base, is fixedly installed with the humidity transducer on the base, and the base inside is provided with multilayer waterproof assembly, multilayer waterproof assembly includes: main connecting sleeve, locking sleeve, dog, cable, pin shaft, arc block, sealing ring, heating shrink seal sleeve pipe, metal shield ring. The waterproof connection assembly for cable joint provides the buffer time for maintenance operation, reduces the risk of sudden failure, and the whole set of device realizes the overall promotion of waterproof performance, mechanical reliability, electrical stability and maintenance convenience through the synergistic effect of mechanical clamping, multilayer sealing, colloid protection and intelligent monitoring, is applicable to the scene such as outdoor, humid industrial environment and the scene of strict waterproof requirement, provides efficient, safe, intelligent solution.

This invention discloses an insulating film for battery top covers, its preparation method, and a battery, relating to the field of battery manufacturing technology. The insulating film for battery top covers comprises an insulating protective layer, a foamed flame-retardant layer, and an insulating adhesive layer stacked sequentially. The foamed flame-retardant layer includes a matrix resin and functional fillers dispersed in the matrix resin, with a mass ratio of matrix resin to functional fillers of 1:(1~1.5). The functional fillers, by weight, include: 45%~70% expandable graphite, 10%~20% ammonium polyphosphate, 5%~10% melamine, 5%~10% pentaerythritol, 1%~10% titanate coupling agent, and 2%~10% fumed silica. This invention addresses the problem in existing technologies where the insulating film's insulation performance deteriorates under high-temperature conditions and it cannot effectively cope with thermal runaway.

The invention discloses a power transmission line bird repelling device, and relates to the technical field of bird repelling devices, the power transmission line bird repelling device comprises at least two mounting base frames, the tops of the two mounting base frames are jointly provided with a power transmission line body, the power transmission line body drives a winding drum to rotate, two contacts located in a rotating part are made to make contact with each other, and a circuit of a servo motor is connected; then the first magnet and the second magnet are separated from each other through the mutual attraction between the first magnet and the second magnet and the check block, and the second magnet is reset through the elastic rope; therefore, the problem that the bending radian of the power transmission line body is too large due to too many birds staying on the power transmission line body can be avoided, the risk that the power transmission line body is damaged can be reduced, the integrity of the wire and the stability of power transmission can be ensured, the maintenance frequency of wire damage caused by bird activities can be reduced, and the power transmission efficiency is improved. And the maintenance cost of an electric power company is reduced.