The invention discloses a square light shield and a preparation method thereof, and belongs to the technical field of satellite light shields. The problems that all parts of an existing light shield are troublesome to assemble and low in assembling reliability are solved. The light shield specifically comprises a light shield body, a heat insulation piece and an inner frame. A square shading cylinder is arranged in the middle of the shading cover body, the bottom of the square shading cylinder is accommodated in the inner frame, the top of the square shading cylinder is connected with a mounting flange, and the square shading cylinder is mounted on the inner frame through the mounting flange; and a heat insulation piece is arranged between the mounting flange and the inner frame. According to the light shield, the light shield body is made of the ceramic matrix composite material, the inner frame is made of the titanium alloy material, the temperature requirement and the strength requirement of the light shield in use can be met, and meanwhile the weight of the light shield body can be reduced; the light shield body is manufactured in an integral forming mode, assembly errors caused by part assembly are avoided, the high-precision requirement is met, the integral connection reliability of the light shield body is guaranteed, the assembly technological process is simplified, and the manufacturing period is shortened.

    本发明公开了一种方形遮光罩及其制备方法,属于卫星遮光罩技术领域;解决了现有的遮光罩各部件装配麻烦、装配可靠性低的问题;具体包括遮光罩本体、隔热件和内框;遮光罩本体中间为方形遮光筒,方形遮光筒底部容置在内框内,方形遮光筒顶部连接有安装法兰,方形遮光筒通过安装法兰安装在内框上;安装法兰和内框之间设有隔热件。本发明中,遮光罩本体由陶瓷基复合材料制备,内框由钛合金材料制备,可满足遮光罩使用的温度要求和强度要求,同时能降低遮光罩本体的重量;遮光罩本体采用整体成型的方式进行制备,避免了零件装配导致的装配误差,满足高精度要求,保证遮光罩本体的整体连接可靠性,简化了装配工艺流程,缩短了制备周期。


    Access

    Download


    Export, share and cite



    Title :

    Square light shield and preparation method thereof


    Additional title:

    一种方形遮光罩及其制备方法


    Contributors:
    DU JIAXIN (author) / LIAO JUNGANG (author) / WU JINGJUN (author) / YANG FAN (author) / CHEN JING (author) / ZHAO DANGFENG (author) / ZHANG SHAOBO (author)

    Publication date :

    2025-03-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B64G Raumfahrt , COSMONAUTICS / C04B Kalk , LIME / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL



    High-performance large-size carbon fiber light shield, preparation method and preparation mold thereof

    CHEN HAORAN / ZHANG SONG / YU DERUN et al. | European Patent Office | 2023

    Free access


    Automobile sun shield and preparation method thereof

    YANG XIAOJIE | European Patent Office | 2020

    Free access