阅读说明：本技术 铰链装置、壳体及电子装置 (Hinge device, shell and electronic device ) 是由 欧阳烁 陈松亚 凡小飞 于 2018-12-18 设计创作，主要内容包括：一种铰链装置(25)、电子装置的壳体(20)及电子装置(100),柔性屏(30)设置于所述壳体(20)上,所述壳体(20)包括框体(21,23)及铰链装置(25),所述铰链装置(25)设置于所述框体(21,23)上,铰链装置(25)包括一第一链节(251)、铰接于所述第一链节(251)的一第二链节(253),以及定位机构(256),所述第一链节(251)包括第一定位槽(2511)及第二定位槽(2513),所述第二链节(253)上设有定位孔(2532),所述定位机构(256)包括定位件(2561),所述定位件(2561)的第一端连接于所述定位孔(2532)内,所述铰链装置(25)在展开状态下,所述定位件(2561)的第二端活动连接于所述第一定位槽(2511)；所述铰链装置(25)在弯折状态下,所述定位件(2561)的第二端活动连接于第二定位槽(2513)。定位件能使铰链装置稳定地保持展开状态或弯折状态,定位效果好。(A hinge device (25), a housing (20) of an electronic device and an electronic device (100), a flexible screen (30) is arranged on the housing (20), the shell (20) comprises frame bodies (21,23) and a hinge device (25), the hinge device (25) is arranged on the frame bodies (21,23), the hinge device (25) comprises a first chain link (251) and a second chain link (253) hinged to the first chain link (251), and a positioning mechanism (256), the first link (251) including a first positioning groove (2511) and a second positioning groove (2513), a positioning hole (2532) is arranged on the second chain link (253), the positioning mechanism (256) comprises a positioning part (2561), the first end of the positioning piece (2561) is connected in the positioning hole (2532), when the hinge device (25) is in an unfolded state, the second end of the positioning piece (2561) is movably connected to the first positioning groove (2511); and the second end of the positioning piece (2561) is movably connected to the second positioning groove (2513) when the hinge device (25) is in a bent state. The positioning piece can ensure that the hinge device stably keeps an unfolding state or a bending state, and the positioning effect is good.)