The invention discloses a thermally-driven hinge-free paper folding and unfolding mechanism, and relates to the technical field of Sanpu paper folding. The thermally-driven hinge-free paper folding and unfolding mechanism comprises miura folding paper, miura-ori units which are evenly distributed are arranged on the upper surface and the lower surface of the miura folding paper, thermosensitive metamaterials are arranged between the miura-ori units, folds are formed between the miura-ori units and the thermosensitive metamaterials, the miura-ori units are of a parallelogram structure and are made of polyimide materials, and the miura-ori units are made of polyimide materials. The thermosensitive metamaterial is made of a shape memory alloy material, and a quadrilateral split resonant ring is arranged on the surface of the miura-ori unit; according to the invention, by utilizing the expansion principle of Sanpu paper folding, the mechanism is simplified, the system complexity is low, the mechanism is light in weight, and the storage ratio of a large space expansion mechanism is improved, printing can be completed by utilizing a 3D printing technology, integration of an intelligent material and the mechanism is realized, large-size and automatic production can be realized, and the like.

    本发明公开一种热驱动无铰链折纸展开机构,涉及三浦折纸技术领域;而本发明包括一种热驱动无铰链折纸展开机构,包括三浦折纸,三浦折纸的上下表面均设置有均匀分布的miura‑ori单元,miura‑ori单元之间设置有热敏超材料,miura‑ori单元与热敏超材料之间形成折痕,miura‑ori单元为平行四边形结构,miura‑ori单元为聚酰亚胺材料制成,热敏超材料为形状记忆合金材料制成,miura‑ori单元的表面设置有四边形的开口谐振环;本发明中,通过利用三浦折纸的展开原理,机构简化,系统复杂程度低,机构轻量化,提高的空间大型展开机构的收纳比,本发明中,可利用3D打印技术打印完成,实现了智能材料与机构一体化,可实现大尺寸及自动化生产等。


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    Title :

    Thermally-driven hinge-free paper folding and unfolding mechanism


    Additional title:

    一种热驱动无铰链折纸展开机构


    Contributors:
    XUE YAPING (author) / JIANG YAHONG (author) / ZHOU JINYU (author)

    Publication date :

    2023-07-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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