2results about How to "Export uniform" patented technology

This invention discloses a high-heat-dissipation, high-current variable vacuum capacitor, comprising a housing and a moving electrode assembly, a metal bellows, and a stationary electrode, all disposed within the housing. The housing includes an insulating cylinder, a moving end base, and a stationary electrode disk. The moving end base is provided with a metal connecting cylinder. The moving electrode assembly includes a moving sub-disk and moving electrodes fixed to the moving sub-disk. The metal bellows is sealed between the moving end base and the moving sub-disk. The stationary electrode is fixed to the inner end face of the stationary electrode disk. A metal conductive component is fixedly mounted on the moving electrode assembly. The metal conductive component has sliding contacts that elastically abut against the inner wall of the metal connecting cylinder using their own elasticity. These contacts maintain sliding contact with the metal connecting cylinder throughout the entire stroke of the moving electrode assembly moving axially, thereby forming a conductive and heat dissipation path in parallel with the metal bellows between the moving electrode assembly and the moving end base. This invention can increase the conductive and heat dissipation areas of the vacuum capacitor, reduce the operating temperature, and increase the current carrying capacity.

The present invention discloses a wide-temperature-range highly insulating rubber composite material for extreme environments and the prepared wide-temperature-range highly insulating rubber composite material, which relates to the technical field of rubber composite materials and aims to solve the technical problem of heat accumulation caused by poor thermal conductivity of fillers in silicone rubber-based composite materials. In the present invention, surface-hydroxylated modified boron nitride nanosheets are used to replace traditional fumed silica. The boron nitride nanosheets themselves are two-dimensional nanomaterials that combine excellent insulation, extremely high thermal conductivity, and good mechanical strength, thus solving the problem of heat accumulation caused by poor thermal conductivity of fillers in silicone rubber-based composite materials.