A wiring harness management device for a slip ringless solar wing drive mechanism

Abstract

The invention discloses a wire harness management device for a solar wing driving mechanism without a slip ring, comprising a box body and a wire harness fixing sleeve integrated in an accommodating cavity of the box body; Wire harness, the whole wire bundle of the wire harness is divided into four wire bundles by the wire splitter; the box body is distributed with the wire bundle lead-out holes along its circumference; the wire bundle part is stored in the accommodating cavity, and the far end of the wire bundle is drawn from the wire bundle lead-out hole lead out. The device of the present invention divides the entire wire harness into four sub-wire bundles, which greatly reduces the bulkiness of the wire harness. Due to the thinning of the wire harness, the resistance torque corresponding to the single wire harness will be greatly reduced, and the pressing force requirements for the wire harness fixing sleeve are also reduced. will be reduced, thereby reducing the risk of damage to the cable at the fixed end of the harness; in addition, the twistability of the harness can be improved, which will increase the rotation angle of the harness management device, thereby increasing its applicability to different harness management requirements.

Description

technical field [0001] The invention relates to the technical field of aerospace technology, in particular to a wire harness management device for a slip-ringless solar wing drive mechanism. Background technique [0002] The solar wing drive mechanism is a very important moving part on the satellite. Its main function is to drive the solar wing to rotate, so that the plane normal of the solar cell coincides with the sun beam, so as to obtain as much solar energy as possible. It is also the energy and signal exchange channel between the interior of the satellite and the solar wing. The power and signal lines on the satellite need to pass through the solar wing drive mechanism. As a rotatable device, with multiple cables passing through at the same time, the solar wing drive mechanism Xu Ya balances the contradiction between "the device needs to be rotated" and "the cable is not easy to twist". The traditional solar wing drive mechanism uses conductive sliding To solve this c...

AI Technical Summary

Problems solved by technology

The above-mentioned patent uses a wire card and a wire harness box to solve the torsion of the cable, but because all the cables are twisted into one strand, the wire harness itself is bloated, and the wire card needs a lot of force to fix the wire harness. The force is easy to pinch the cable or damage the insulation of the cable, resulting in a short circuit

Moreover, a single thicker wire harness will generate a larger resistance moment when twisted, and there will be more intense friction between the cables, which will increase the risk of short circuits caused by abrasion of the insulation of the cables to a certain extent.

Another disadvantage of the single thicker wire harness scheme is that its rotation angle is small, which is determined by its own bulkiness, which will lead to its poor applicability and cannot meet the requirements of large-angle rotation

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