Radiating apparatus for variable high-power device of spacecraft

Abstract

The invention discloses a radiating apparatus for a variable high-power device of a spacecraft, belongs to the field of the spaceflight thermal control technology, and solves the problem of single radiating method and high compensation heating power consumption of the spacecraft device in the prior art. The radiating apparatus provided by the invention mainly comprises a mounting plate, a thermal insulation cushion, a phase-changing box, a thermal pipe hot end, a multi-layer thermal insulation assembly, a thermal pipe middle section and a thermal pipe cold end, wherein the thermal insulation cushion is arranged between the mounting plate and the device; the phase-changing box comprises a main body and a sealing cover; the inner surface of the main body is fixed on the outer surface of the device; staggered rib plates are arranged on the outer surface of the main body; the sealing cover is fixed on the outer surface of the main body in a sealing manner; the space between the main body and the sealing cover is filled with a phase-changing material; the thermal pipe hot end is fixed on the surface of the sealing cover; and the thermal pipe cold end is fixed on a radiating surface or a position needing to be radiated. The radiating apparatus does not require a quite large radiating surface or compensating heat; meanwhile, the energy saving efficiency can reach greater than 90%; and in addition, afterheat utilization and accurate temperature control can be realized as well.

Description

technical field [0001] The invention belongs to the field of thermal control of aerospace technology, and in particular relates to a cooling device for a variable high-power device of a space vehicle. Background technique [0002] With the development of space vehicles, space electronic equipment has been widely used. The layout of electronic equipment is becoming more and more compact, the packaging density is increasing, and the energy flow density is increasing. The power of a single electronic device has increased from a few watts to the current hundreds. Thousands of watts, the problem of heat dissipation of electronic devices has become increasingly prominent. Especially for devices whose power changes over time, heat dissipation is more difficult. [0003] In addition, some high-power devices have high temperature requirements, narrow operating temperature range, poor adaptability, and different powers in different periods. Can reach 105W (short-term work). Such de...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problems of single heat dissipation method and large power consumption of heating in the heat sink of the space vehicle variable high-power device in the prior art, and provide a space vehicle variable high-power device heat sink

Images