Space inflation deployable antenna reflector without influence of sunlight pressures

Abstract

The invention provides a space inflation deployable antenna reflector without influence of sunlight pressures. The space inflation deployable antenna reflector is characterized in that a gold-plated or nickel-plated molybdenum screen mesh, a mesh rack capable of being stiffened and a thin-film surface of a lens are adhered with one another to form a closed air cavity, an inflation support ring is connected with the closed air cavity by constant-force springs, an opening of an elastic clip is formed in the outer portion of a support sleeve, and an explosive bolt is arranged on the opening of the elastic clip. The space inflation deployable antenna reflector has the advantages that the inflation support ring and the closed air cavity can be respectively inflated at preset tracks after the space inflation deployable antenna reflector lifts off, and the structure of the antenna reflector is deployed to form a fixed structural shape, the explosive bolt is exploded and destroyed after materials capable of being spatially stiffened are illuminated and solidified by ultraviolet rays in spaces or heated and solidified, the elastic clip in the support sleeve no longer realizes constraining effects on a connecting rope, the connecting rope can be withdrawn from connecting rings under the actions of a motor on a satellite, accordingly, the closed air cavity can be separated from the gold-plated or nickel-plated molybdenum screen mesh and the mesh rack capable of being stiffened, and the antenna reflector can meet design requirements.

Description

technical field [0001] The invention relates to a space inflatable unfolding antenna reflective surface which is not affected by solar light pressure, and belongs to the technical field of inflatable unfoldable antenna reflective surfaces. Background technique [0002] At present, the reflective surface of large-scale space deployable antennas used in space is mainly deployed mechanically, and there are problems such as too many hinges leading to reduced reliability of unfolding and limited size of folded packaging. High, and the size of the folded package is limited, but the large film structure is seriously affected by the solar light pressure in the space environment, which in turn has an adverse effect on the satellite's on-orbit attitude. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, that is, the large-scale thin-film structure is seriously affected by the solar light pressure in the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the reflective surface of large-scale space deployable antennas used in space is mainly deployed mechanically, and there are problems such as too many hinges leading to reduced reliability of unfolding and limited size of folded packaging. High, and the size of the folded package is limited, but the large film structure is seriously affected by the solar light pressure in the space environment, which in turn has an adverse effect on the satellite's on-orbit attitude

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