Thermal protection structure with load bearing/thermal protection/power supply integrated function

Abstract

The invention discloses a thermal protection structure with a load bearing / thermal protection / power supply integrated function, which is characterized in that a thermal protection structure unit is composed of a thermal protection unit and a gap thermal protection assembly; the thermal protection unit comprises a bearing frame, a thermoelectric layer and a limiting nest core, and the gap thermal protection assembly comprises a thermal protection layer, a thermal insulation layer, a structural interface layer and a temperature control layer; the thermoelectric layer comprises a high-temperaturethermoelectric layer and a medium-temperature thermoelectric layer; and a load bearing frame is connected with the wall surface of an aircraft through screws, and the other structural components areconnected through high-temperature-resistant glue. According to the thermal protection structure integrated with a thermoelectric conversion function, a thermoelectric material and a temperature control material are introduced into the design of the thermal protection structure, the temperature difference of the thermoelectric material layer is used for generating power on the premise that the load bearing function and the thermal protection function are achieved by reasonably designing the thermal protection unit and the gap thermal protection assembly, and important significance is achievedfor weight reduction of an aircraft working for a long time in a severe thermal environment and improvement of the internal space utilization rate of the aircraft.

Description

technical field [0001] The invention belongs to the field of overall design of aerospace vehicles and multifunctional structural material design, and relates to a thermal protection structure with integrated functions of bearing, heat protection and power supply. Background technique [0002] Hypersonic cruise vehicles need to work for a long time in a harsh geothermal environment. Traditional aircraft thermal protection system designs usually take away heat by ablation or use the properties of the material itself to resist heat, which does not meet the long-term work requirements of the aircraft. The work will inevitably increase the requirements for the power source to be carried. On the one hand, it will occupy the internal space of the aircraft, and on the other hand, it will increase the weight of the aircraft. [0003] Therefore, it is urgent to break through the original thermal protection system design ideas, from the perspective of thermal management, change "blocki...

AI Technical Summary

Problems solved by technology

[0002] Hypersonic cruise vehicles need to work for a long time in a harsh geothermal environment. Traditional aircraft thermal protection system designs usually take away heat by ablation or use the properties of the material itself to resist heat, which does not meet the long-term work requirements of the aircraft. The work will inevitably increase the requirements for the power source to be carried. On the one hand, it will occupy the internal space of the aircraft, and on the other hand, it will increase the weight of the aircraft.

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