Multi-functional composite electronic box body of spacecraft

Abstract

The invention belongs to the technical field of spaceflight electronic equipment, and in particular to a multi-functional composite electronic box body of a spacecraft. The multi-functional composite electronic box body comprises a temperature control panel, wherein the temperature control panel comprises an inner panel, an intermediate layer and an outer panel which are sequentially arranged from inside to outside, an inter-layer heater is arranged between the inner panel and the intermediate layer, an outer-layer heater is arranged between the intermediate layer and the outer panel, and a thermal control coating layer is coated on an outer surface of the outer panel. By the multi-functional composite electronic box body, a traditional single-layer panel is divided into the inner-layer panel, the intermediate-layer panel and the outer-layer panel, the temperature control heater of a product is pasted between the inner-layer panel and the intermediate-layer panel, an external heat flow simulation heater is pasted between the intermediate-layer panel and the outer-layer panel, and a radiating and heat dissipation thermal control coating layer is coated on an outer wall of the outer-layer panel. The multi-functional composite electronic box body is high in reliability, a vacuum thermal balance test can be accurately and effectively performed, and meanwhile, the temperature control demand under a normal temperature and normal pressure condition during product test is satisfied.

Description

technical field [0001] The invention belongs to the technical field of aerospace electronic equipment, and in particular relates to a multifunctional composite spacecraft electronics box. Background technique [0002] During the operation of the spacecraft in space, the electronic equipment is exposed to the harsh space environment. In addition to being subjected to high vacuum and microgravity, it is also required to be able to adapt to the high temperature in the sun area and the low temperature in the shadow area. Changes in the internal heat load caused by power-on and power-off of equipment. As the altitude from the Earth's surface increases, the atmospheric pressure decreases, gradually reaching an extremely high vacuum state. Some studies have shown that when the air pressure drops to 10 -3 Below Pa, the conduction and convection heat transfer of the gas can be ignored, and the heat exchange between the spacecraft and the environment or between the internal componen...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the complex technical problems of poor reliability of the box temperature control panel of the existing aerospace electronic equipment, difficulty in accurately and effectively conducting vacuum thermal balance tests, and difficulty in meeting the temperature control requirements during product testing under normal temperature and pressure conditions, etc. , the present invention provides a multifunctional composite electronics box for a spacecraft

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