A multi-satellite launch upper-level satellite separating bracket

Abstract

The invention discloses a multi-satellite launch upper-level satellite separating bracket, comprising a multi-star adapter, a separating bracket, a heat insulation pad, a heater, a thermistor, a multi-layer heat insulation assembly, a heat conducting silicone rubber, a multi-layer fixing buckle, a thermal control cable, an adapter cable and an adapter cable electrical connector. The separating bracket is connected with a multi-star adapter through a heat insulation pad, - the heater and thermistor are pasted on the separating bracket. the thermal control cable is fixed by thermally conductivesilicone rubber, At each separate bracket, that thermal control cable and the transfer cable are connected through an electrical connector of the transfer cable, The adapter cable connects the heaterson each bracket in a series-parallel manner to form a loop, and the separating bracket is externally coated with a multi-layer heat insulation component, which is wrapped in the heater and outside the thermistor, and the multi-layer heat insulation component is fixed on the separating bracket through a multi-layer fixing button. The invention is convenient for general assembly and testing, high in reliability, strong in adaptability and low in overall resource occupancy.

Description

technical field [0001] The invention belongs to the field of thermal control design of spacecraft, and in particular relates to a separating support for upper-stage satellites for multi-satellite launching. Background technique [0002] An upper-level multi-satellite adapter is connected to the satellite bracket through the mounting bracket, the upper surface of the bracket is the connection surface with the satellite, and the lower end is connected to the cylinder through the connection box. Before the satellite is separated from the upper stage, the upper stage needs to ensure that the temperature of the upper-stage satellite mounting bracket and the satellite mounting surface is not lower than -10°C. The entire multi-star adapter barrel is a passive body, and has been exposed to the deep cold outer space for a long time, and the external environment is harsh. Due to the requirements of the final assembly, the separation bracket is often separated from the upper stage, bu...

AI Technical Summary

Problems solved by technology

Usually, in the thermal design of the satellite support, in addition to the heat insulation installation with the star, the outside is covered with multi-layer heat insulation components. Generally, the heater is not pasted for temperature compensation. However, due to its special temperature requirements, the upper separation support must use Compensation heaters are used to compensate for heat leakage; in order to improve reliability in general satellites, crimping or welding is often used between cables, and if the upper-level separation bracket inherits the conventional satellite thermal design method, in order to meet the requirements of final assembly and testing during the development process, It is bound to cut and connect the cables multiple times, thereby reducing the reliability of the product and bringing great risks; at the same time, the distribution of the separation brackets is scattered. If the series-parallel connection between the heaters in the conventional thermal design is used, the separation surface will be damaged. There are many and scattered cables at the site, it is difficult to meet the anti-clamping requirements, which will have an adverse effect on satellite separation. Therefore, in the thermal design process, a special and independent thermal design is required to meet the requirements of final assembly and testing while improving product reliability.

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