High-power formable multi-layer composite bus bar for space navigation

Abstract

The invention relates to a high-power formable multi-layer composite bus bar for space navigation. The bus bar comprises a confluence positive bus 1, cavity insulation paste 2, a bus positive bus binding post 3, a cavity insulation assembly 4, a bus negative bus binding post 5, a confluence negative bus 6, an outer insulation protection cover 7, a bus negative bus installation groove 8, an insulation installation sleeve 9, a bus bar protection insulation plate 10 and a terminal insulation assembly 11. The confluence positive bus 1 is connected with a high-voltage end, and is on the intermediate position, the confluence negative bus 6 is connected with a low-voltage end (namely a direct-current zero-potential end), is U-shaped and surrounds three sides of the confluence positive bus 1, so that an electric field line generated after the high-voltage end and the low-voltage end are electrified is limited in the U shape, a good electromagnetic compatibility effect is ensured, and comparedwith the condition that a silver-plated copper wire is adopted in the same power cable assembly, about 20% of weight and volume can be saved under the condition of the same transmission horizontal sectional area. The heat dissipation area is large, the heat dissipation capacity is high, the environment temperature rise is low, and the transmission impedance can be reduced.

Description

technical field [0001] The invention relates to a high-power formable multi-layer composite bus bar for aerospace, belonging to the technical field of high-power power supply and distribution for aerospace. Background technique [0002] With the implementation of space projects such as high-resolution earth observation and deep space exploration, the demand for payloads has increased, and the resolution of spacecraft and the range of surveying belts have put forward higher and higher requirements for energy supply. The current-carrying capacity of the main power transmission channel Raise to above 100A. [0003] The combination of the aerospace cable network and the electronic stand-alone constitutes the power transmission path of the whole star and the whole ship, and transmits energy and various command signals between devices. Domestic spacecraft generally rely on the method of increasing the number of wires to increase the transmission power level and the number of sign...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the above-mentioned prior art, to provide a high-power formable multi-layer composite bus bar for aerospace, which is suitable for distributed power supply systems with parallel power supply, and has plug-and-play and high-power The transmission function solves the problem of large heat generation and slow heat dissipation of traditional aerospace high-power cables, slows down the electrothermal coupling, and at the same time promotes the lightweight and miniaturization of spacecraft power supply and distribution units, improves the laying efficiency of power cable networks, and improves Carrying reliability

Images