Hinge for expandable solar cell array of cubesat

Abstract

The invention discloses a hinge for an expandable solar cell array of a cubesat. The hinge for the expandable solar cell array of the cubesat comprises a body installation plate fixing piece, an expendable array fixing piece, a positioning shaft and a torsional spring. The body installation plate fixing piece is of a three-side surrounding structure. The expandable array fixing piece is matched with the shaped defined by the body installation plate fixing piece. The positioning shaft is fixed in the body installation plate fixing piece and is in running fit with the expandable array fixing piece. The axis of the positioning shaft serves as the circle center around which the body installation plate fixing piece and the expandable array fixing piece rotate mutually. Limiting protrusions which are located on the same rotating surface are arranged on the opposite end faces of the body installation plate fixing piece and the expandable array fixing piece in a staggered mode. The body installation plate fixing piece and the expandable array fixing piece are in clearance fit through the limiting protrusions on the end faces of the body installation plate fixing piece and the expandable array fixing piece. The positioning shaft in the expandable array fixing piece is sleeved with the torsional spring and limited in the axial direction by the two inner end faces of the expandable array fixing piece. A straight torsional arm of the torsional spring makes contact with a body installation plate and the expandable array. The hinge is small in size, low in weight, high in adaptability and high in transportability.

Description

technical field [0001] The invention belongs to the technical field of cube stars, in particular to a hinge for launching a solar cell array of a cube star. Background technique [0002] In recent years, with the rapid development of technologies such as communications, optoelectronic components, materials, sensors, and applied fluids, the development of CubeSat technology has accelerated significantly, and it has become possible to use CubeSats for remote measurement and testing. The low cost has prompted the emergence of cubesat development programs around the world. [0003] The power supply is a very important subsystem of CubeSat, including battery packs and solar arrays. It provides the required working energy for the cube star, and the solar array is the only direct source of energy. It converts sunlight into electrical energy to power the loads on the star, and at the same time it can also charge the battery pack that maintains the cubesat during the shadow period....

AI Technical Summary

Problems solved by technology

This design has the following defects: (1) the size is large, resulting in a large distance between the deployment array and the body mounting plate, the cubesat may be stuck in the separation mechanism, and the launch fails; (2) the mass is large, which limits the mass of the load carried by the cubesat. Increase the cost of launch; (3) low adaptability, the deployment array can only be deployed at an angle of 90° with the body mounting plate, making the deployment array poorly irradiated by sunlight and generating less electricity; (4) poor portability, only applicable to dual Unit cube star, can not be used for multi-unit cube stars such as three units

Images