Substrate structure suitable for flexible solar wing and forming method of substrate structure

Abstract

The invention discloses a substrate structure suitable for a flexible solar wing and a forming method of the substrate structure. The substrate structure has certain flexibility, is thin (0.3 mm) andlarge in size, and has good mechanical properties and space environment resistance. The flexible substrate adopts a novel design thought integrating the characteristics of a flexible plate and a rigidplate, and is of a five-layer plane symmetrical structure, the middle layer is made of a fiber reinforced composite material, the outermost layer is a polyimide film, and the polyimide film and the middle reinforcing layer are bonded, cured and formed by adopting a flexible adhesive. According to the flexible substrate suitable for the low-orbit environment, in order to protect low-orbit atomic oxygen, an atomic oxygen protection layer is further arranged on the outer surface of the polyimide film. In order to ensure no layering, no bubble and smooth surface between layers after the flexiblesubstrate is molded, the invention innovatively provides a molding process of combining a soft board and a hard board for molding.

Description

technical field [0001] The invention relates to a flexible solar cell wing substrate structure, which can be used as a mounting platform and a support carrier for a large-area flexible solar wing cell circuit. Background technique [0002] At present, domestic spacecraft solar wings generally use rigid solar wings and semi-rigid solar wings, and the corresponding substrates (battery circuit installation platform and support carrier) are rigid substrates and semi-rigid substrates, which are heavy in weight (area density is generally 1.0kg / m 2 ~2.5kg / m 2 ), the size is larger after being folded (generally the thickness of a single board is 23mm). With the development of aerospace technology, the power demand of large-scale spacecraft is increasing, so the area of ​​the solar cell wing is required to be larger and larger. If the traditional rigid substrate or semi-rigid substrate is still used on the large-area solar cell wing, the It will face the problem that the envelope...

AI Technical Summary

Problems solved by technology

With the development of aerospace technology, the power demand of large spacecraft is increasing, which requires the area of ​​solar cell wings to be larger and larger. If traditional rigid substrates or semi-rigid substrates are still used on large-area solar cell wings, it will It will face the problem that the envelope size and weight cannot meet the requirements after being folded, so it is urgent to develop flexible solar wing technology with small size and light weight

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