The invention provides a folding type solar cell array secondary pressing and releasing mechanism which can move and keep fixed at a set position after being released, so that the function and performance requirements of the secondary pressing and releasing mechanism are met. The mechanism includes a pressing cap, a limiting mechanism, a pressing rod, a pressing seat and a flame cutter, wherein the pressing seat is fixedly installed on the side wall of a spacecraft, the pressing rod sequentially penetrates through the outer middle solar panel, the inner middle solar panel and the pressing lining of the inner solar panel and then is fixedly connected with the pressing seat, and pretension is applied through the pressing rod; the hot working cutter is used for cutting off the pre-tensioned pressing rod; a limiting section matched with the limiting mechanism is arranged above the cut-off position of the pressing rod; the limiting mechanism is fixed in a pressing bush of the outer middle solar panel; after the hot working cutter cuts off the pressing rod, the cut pressing rod slides towards the direction of the outer middle solar panel; when the limiting section on the pressing rod moves to the position where the limiting mechanism is located, the pressing rod is fixed to the current position through limiting of the limiting section by the limiting mechanism.

    本发明提供一种折叠式太阳电池阵二次压紧释放机构,能够在释放后运动并保持固定在设定位置,满足二次压紧释放机构的功能和性能要求。包括:压紧帽、限位机构、压紧杆、压紧座以及火工切割器;压紧座固定安装在航天器侧壁上,压紧杆依次穿过外中太阳板、内中太阳板、内太阳板的压紧衬套后与压紧座固接,通过压紧杆施加预张力;火工切割器用于切断预张紧的压紧杆;在压紧杆切断处上方设置有与限位机构配合的限位段;限位机构固定在外中太阳板的压紧衬套内;当火工切割器切断压紧杆后,切断后的压紧杆向外中太阳板方向滑动;当压紧杆上的限位段移动至限位机构所在位置时,通过限位机构对限位段的限位将压紧杆固定在当前位置。


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    Title :

    Secondary pressing and releasing mechanism for folding type solar cell array


    Additional title:

    一种折叠式太阳电池阵二次压紧释放机构


    Contributors:
    PU HAILING (author) / YANG SHULI (author) / REN SHOUZHI (author) / MA JINGYA (author) / LIU YING (author)

    Publication date :

    2021-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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