Large fold-to-span ratio solar wing

Abstract

The present invention provides a solar wing with a large folding-to-span ratio, including an unfolding mechanism and a solar cell substrate assembly arranged on a satellite body; the unfolding mechanism includes an unfolding rod assembly, a guide roller assembly and a driving rope; The deployment rod and the first hinge connecting the deployment rods to form an open-loop chain structure, the deployment rod assembly can be folded and unfolded, wherein, in the folded state, the sides of adjacent deployment rods are against each other, and in the unfolded state, The ends of the adjacent deployment rods are against each other; the guide roller assembly includes a guide roller arranged at the joint of the deployment rod and coaxial with the first hinge. In the present invention, the solar wing with large folding ratio is deployed by rope drive, with fewer parts and components, simple structure, small space occupation, light product weight and high mechanism reliability; according to different task requirements, it can be increased or decreased The number of deployment rods and rollers enables the deployment of solar cell substrates of different lengths 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.

Images