Thermal bridge blocking structure for aircraft and preparation method thereof

Abstract

The invention provides a thermal bridge blocking structure for an aircraft and a preparation method thereof. The thermal bridge blocking structure is located between the high temperature structure and the cold load bearing structure of the aircraft. The thermal bridge blocking structure includes a plurality of heat insulation units, A plurality of heat insulation units are stacked along the direction from the high temperature structure to the cold bearing structure, any heat insulation unit includes a first heat insulation part and a plurality of second heat insulation parts, and a plurality of second heat insulation parts are arranged at intervals on the first The heat insulation parts are distributed along one end face of the stacking direction and along the circumferential direction of the end face, and the projections of multiple second heat insulation parts of any two adjacent heat insulation units on the stacking direction are staggered to extend the high temperature structure and the cold load-bearing structure heat conduction path between. Applying the technical solution of the present invention can solve the technical problem in the prior art that the thermal bridge blocking structure has a poor heat insulation effect in a narrow space and thus cannot meet the heat insulation requirements of high-speed aircraft.

Description

technical field [0001] The invention relates to the technical field of thermal bridge blocking structure design, in particular to a thermal bridge blocking structure for an aircraft and a preparation method thereof. Background technique [0002] Due to the high flying Mach number and low flying altitude of high-speed aircraft, the thermal environment of each part of the aircraft is relatively harsh. The local high-temperature structure of the fuselage (such as side strip structure, local interference area, etc.) generally uses thermal structural composite materials for heat-proof design, and the fuselage load-bearing structure connected to the local high-temperature structure generally uses metal with higher load-bearing efficiency. Cold load-bearing structure, the outside of the metal cold load-bearing structure can be laid with thermal protection structures such as heat-resistant tiles for space shuttles and PQ phenolic aldehyde. In order to reduce the heat transfer betwe...

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Problems solved by technology

[0003] The invention provides a heat bridge blocking structure for aircraft and a preparation method thereof, which can solve the problem that the heat insulation effect of the heat bridge blocking structure in the prior art is poor in a narrow space and cannot meet the heat insulation requirements of high-speed aircraft technical issues

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