A satellite solar panel

Abstract

The present invention proposes a sailboard for satellite solar cells, comprising a sailboard body mounted on a satellite load-bearing plate with a folded state and an unfolded state, and an elastic force deployment mechanism for unfolding the sailboard body in the folded state. The sailboard body includes M The sub-sailboards connected in sequence, the bottommost sub-sailboard and the load-bearing board, and the rotation connection between the sub-sailboards and the sub-sailboards, in the folded state, M pieces of sub-sailboards are stacked in sequence On the board; the sailboard body is restrained by the external compression release mechanism in the folded state to maintain compression, and after the compression release mechanism releases the compression constraint, the sailboard body can be expanded under the action of the elastic expansion mechanism. The sailboard of the present invention has a simple and reliable structure, flexible design, a small envelope in the folded state, a large expandable area, and self-locking after unfolding; and the deployment of the sailboard body is realized by relying on the elastic potential energy accumulated by the elastic force unfolding mechanism itself, without power supply or hydraulic pressure The driving part can effectively reduce the complexity of the unfolding mechanism.

Description

technical field [0001] The invention belongs to the technical field of aerospace satellites, and in particular relates to a satellite solar cell sailboard. Background technique [0002] Satellites in space mainly use solar panels to provide energy for them. The larger the area of ​​the panels, the more energy they can provide. In order to increase the area of ​​the sailboard as much as possible and meet the envelope constraints of the rocket, the sailboard is generally designed as a structure with a folded state and an unfolded state. The sailboard is in a retracted state on the ground and during launch, and then unfolded in space after being launched into orbit. [0003] The deployment mechanism that drives the sailboard deployment is the core part, and the reliability of the deployment mechanism directly affects the performance of the satellite as a whole. According to different driving methods, the unfolding mechanism can be divided into micro-motor driven, hydraulic or...

AI Technical Summary

Problems solved by technology

The micro-motor drive is stable and controllable, but it consumes power resources and the drive system is complicated. The hydraulic and pneumatic drives have strong carrying capacity but need to be equipped with a separate storage tank. However, the above two drive methods are not suitable for the deployment of sailboards for micro-satellites.

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