An integrated spacecraft deck containing structural lithium batteries

Abstract

The invention discloses an integrated spacecraft deck containing a structural lithium battery, which comprises a deck upper skin, a deck honeycomb core and a deck lower skin which are connected in sequence. A structural lithium battery is embedded in the honeycomb core, and the structural lithium battery includes an upper cover plate, a grid frame and a lower cover plate in a sandwich structure, and a grid battery compartment is arranged in the grid frame, A plurality of single cells are installed in the grid battery compartment, both the grid frame and the lower cover are embedded in the mounting groove of the honeycomb core of the cabin, and the upper cover is installed on the cabin On the upper skin and outside the battery opening in the skin on the deck. The invention achieves the organic fusion of the spacecraft cabin plate and the structural lithium battery structure through the integrated design, can achieve stable connection, and effectively improve the overall structural rigidity and strength after fusion.

Description

technical field [0001] The invention relates to a spacecraft structural system and power system technology, in particular to an integrated spacecraft cabin board containing a structural lithium battery. Background technique [0002] Due to the limitation of launch resources, aerospace structures need to be designed to be as lightweight and small as possible. The multi-functional structure lithium battery integrates various functions such as structure bearing, power supply and power storage into a unified structure, which can greatly save the redundant weight and volume of equipment, improve the overall function-to-mass ratio and function-to-volume ratio, and meet the needs of spacecraft platforms. Design requirements. [0003] However, for example, the Chinese patent document with the application number of 201610307086.1 discloses a multi-functional structure for electric energy and mechanical environment management, and describes a lithium battery with a traditional struct...

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Problems solved by technology

[0003] However, for example, the Chinese patent document with the application number 201610307086.1 discloses a multifunctional structure for electric energy and mechanical environment management, which records a lithium battery with a traditional structure, which is not integrated with the deck, and the single battery needs to be assembled first. Battery pack with protective case, battery pack is assembled

This multi-level assembly method not only has high design complexity, but also introduces redundant battery packs to protect the shell quality, so there is still room for improvement in structural performance

For example, the Chinese patent document with the application number 201610303836.8 discloses a multifunctional bulkhead structure for microsatellite systems. It records a multifunctional structural deck, and directly embeds the battery pack into the internal space of the “day” shape of the deck, but There is no standardized basic grouping unit, and there are too many constraints on the embedded structure, so it is only suitable for small satellites and does not have extensive scalability

[0004] Due to the different requirements of different satellite structures and energy systems, the structural size of large satellite decks is obviously larger than that of structural lithium batteries, which cannot be replaced as a whole

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