A high-power formable multi-layer composite bus bar for aerospace

Abstract

The present invention is a high-power formable multi-layer composite bus bar for aerospace, which comprises a bus positive bus 1, a cavity insulating glue 2, a positive bus terminal 3, an insulating component 4 of the cavity, a negative bus terminal 5, and a negative bus terminal 5. Negative bus bar 6 , outer insulating cover 7 , bus negative bus bar mounting slot 8 , insulating mounting sleeve 9 , bus bar protective insulating plate 10 , and terminal insulating assembly 11 . The bus positive bus 1 is connected to the high-voltage end and is located in the middle, and the negative bus 6 is connected to the low-voltage end (that is, the DC zero-potential end), which is U-shaped and surrounds the positive bus 1 on three sides, so that the high-voltage end and the low-voltage end are energized. The electric field lines are confined inside the U-shape to ensure a good electromagnetic compatibility effect. Compared with the same power cable assembly using silver-plated copper wires, it can save about 20% in weight and volume under the same transmission horizontal cross-sectional area. The heat dissipation area is large, the heat dissipation capability is strong, the ambient 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

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