Solar wing with large folding and unfolding ratio

Abstract

The invention provides a solar wing with a large folding and unfolding ratio. The solar wing comprises an unfolding mechanism and a solar cell substrate assembly which are arranged on a satellite body. The unfolding mechanism comprises an unfolding rod assembly, a guide roller assembly and a driving rope; the unfolding rod assembly comprises a plurality of unfolding rods and a first hinge for connecting the unfolding rods to form an open-loop chain structure, the unfolding rod assembly can realize folding and unfolding, wherein when in a folding state, the side surfaces of adjacent unfolding rods abut against each other, and when in an unfolding state, the end parts of the adjacent unfolding rods abut against each other; and the guide roller assembly comprises guide rollers which are arranged at the hinged positions of the unfolding rods and coaxial with the first hinge. The solar wing with the large folding and unfolding ratio is unfolded in a rope driving mode, the number of parts and components is small, the structure is simple, the occupied space is small, the product weight is low, and mechanism reliability is high; and for different task requirements, a solar cell substrate is unfolded by different lengths by increasing or decreasing the number of the unfolding rods and the rollers without redesigning the structure.

Description

technical field [0001] The invention relates to the technical field of aerospace equipment, in particular to a solar wing with a large folding-to-span ratio. Background technique [0002] The solar wing is the medium that collects sunlight and converts it into electrical energy. It is the energy source for the movement of the spacecraft and is one of the most important components of the spacecraft. It has certain functions of deployment and structural support. There are solar cells matched with it. When the spacecraft is launched, the deployment device and the solar cells are in a folded and compressed state to reduce airflow resistance. According to the deployment requirements, after the satellite and arrow are separated or enter orbit, the deployment device is deployed. And constantly adjust the angle during the satellite flight to adapt to the direction of sunlight. [0003] At present, the solar wing deployment devices that are widely used are mainly hinged expandable m...

AI Technical Summary

Problems solved by technology

[0003] At present, the solar wing deployment devices that are widely used are mainly hinged expandable mechanisms and rod-shaped expandable mechanisms. With the continuous development of technology, miniaturized and lightweight satellite platforms are the trend of future development. The traditional solar wing deployment mechanism is complex, heavy and large in size, which is difficult to meet the special application requirements of light and small satellite platforms.

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