33results about How to "Does not conduct electricity" patented technology

The anti-splashing evaporation boat assembly comprises an evaporation boat, an insulation heat conduction crucible and an insulation heat insulation cover, the insulation heat conduction crucible is placed on the evaporation boat, the insulation heat insulation cover is buckled above the insulation heat conduction crucible, crucible annular grooves are formed in the tops of the two side walls of the insulation heat conduction crucible, and the crucible annular grooves are communicated with the insulation heat conduction crucible. Height difference exists between an inner wall step and an outer wall step on the two sides of the crucible annular groove, a plurality of backflow grooves are formed in the inner wall step and communicated with the interior of the insulation heat conduction crucible and the crucible annular groove, and an air outlet is formed in the middle of the insulation heat insulation cover. The insulation heat conduction crucible is heated through the evaporation boat, the evaporation area is greatly larger than that of an evaporation liquid pool formed by directly conveying metal wires to the evaporation boat to be melted, the evaporation rate is higher, the insulation heat insulation cover forms a barrier between the evaporation boat and an upper film material, the heat radiation influence can be reduced, and the evaporation effect is improved. Overflowed molten metal is guided to flow to non-electrode and evaporation boat areas, and splashing is effectively avoided.

The utility model relates to the technical field of cold-contraction cable joints, in particular to a power cable cold-contraction intermediate joint, which comprises a joint pipe, a shielding net is mounted in the pipe wall of the joint pipe, an insulating layer is mounted in the middle of the inner wall of the joint pipe, and a plurality of high-temperature-resistant sleeves which are uniformly arrayed are mounted on the inner wall of the insulating layer. Shielding contact sleeves are installed on the inner sides of the two ends of the inner wall of the connector pipe, sealing sleeves are installed on the outer sides of the two ends of the inner wall of the connector pipe, and the outer surface of the connector pipe is coated with a shielding coating. The cable joint has the advantages that the shielding net is filled in the joint pipe, and the shielding contact sleeves are arranged on the inner sides of the two ends in the joint pipe and are connected with the shielding net, so that after two cables extend into the joint pipe, the shielding contact sleeves are in contact with the cables to form a loop and play a role in shielding electric signals; the insulating layer is installed in the middle of the interior of the joint pipe, and the insulating layer can block electrical conduction of the cable, so that the cold contraction joint is not conductive.