A cable-free high-density cube star and its assembly method

Abstract

The invention discloses a cable-free high-density cube star and an assembly method thereof, comprising a main structural frame, a solar battery array, an antenna plate, an integrated electronic system on the star, a momentum wheel, a gyroscope, a magnetic torque device, a remote sensing camera, and a storage battery Group, camera fastening frame, screw rod, the main structural frame includes the upper end cover and the star shell, the momentum wheel, gyroscope, magnetic torque device and camera fastening frame are fixed in the star shell, and the remote sensing camera is fixed in the camera fastening frame The integrated electronic system on the star is a multi-layer circuit board formed by folding a whole circuit board and placing the multi-layer circuit board in the star shell, and the solar cell array is fixed on the side wall of the main structural frame. The invention realizes the integration of integrated electronics on the star and the cable-free connection among various systems, realizes the high-density integration of the cube star, and improves the utilization rate of the inner space of the cube star.

Description

technical field [0001] The invention relates to the technical field of satellites, in particular to a cable-free high-density cube star and an assembly method thereof. Background technique [0002] Cube stars began in 1999 as a scientific study by the California Institute of Technology and Stanford University. According to the CubeSat design standard, it is stipulated that a cube with a mass of 1kg and a structural size of 10cm×10cm×10cm is a unit, making CubeSat a general standard for micro-nano satellites. With the development of micro-nano technology, integrated multi-functional structure, additive manufacturing technology, integrated integrated electronic system and other technologies and their application on cube stars, this has brought innovation to the design of cube stars, and the performance of satellites has been further improved. The improvement of the satellite information processing capability has been enhanced, the uplink and downlink bandwidth has been increa...

AI Technical Summary

Problems solved by technology

This design has disadvantages such as low system integration, low functional density of the whole star, and inconvenient installation and debugging.

The subsystems of the CubeSat platform are simply connected through stacking and cable connections, without considering the full sharing of resources on the star, resulting in a waste of resources

The existing PC104 and cable connection methods between the sub-systems of the existing CubeSat limit the layout of the satellite to a large extent, and cannot make full use of the entire star space, and the plug-in stand-alone installation will make the system unreliable to a certain extent

During the test process, it needs to go through the steps of stand-alone test - sub-system level test - whole star electrical test, etc. During the test process, the mechanical interface and electrical connector between the boards need to be installed and plugged in multiple times, and the stacked whole star structure is tested The openness of personnel is not enough, which brings a lot of inconvenience to the test

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