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.)

A hinge device comprises a first chain link, a second chain link hinged to the first chain link and a positioning mechanism, and is characterized in that the first chain link comprises a first positioning groove and a second positioning groove, the second chain link is provided with a positioning hole, the positioning mechanism comprises a positioning piece, the first end of the positioning piece is connected in the positioning hole, and the second end of the positioning piece is movably connected to the first positioning groove when the hinge device is in an unfolded state; and the second end of the positioning piece is movably connected to the second positioning groove when the hinge device is in a bent state.

The hinge assembly of claim 1, wherein the positioning hole is opened on a side of the second link facing the first link, and the positioning member is retractable in the positioning hole along a length direction of the positioning hole.

The hinge assembly of claim 2, wherein the retainer is forced by an inner surface of the first detent during the process of unfolding the hinge assembly into the folded position, a component of the force directed toward the second end causing the retainer to retract away from the first detent; the component of the force in the direction of the second positioning groove enables the second end of the positioning piece to slide towards the second positioning groove.

The hinge assembly of claim 2, wherein said positioning member is forced by an inner surface of the second detent during the bending to unfolding of the hinge assembly, the component of the force directed toward the second end causing the positioning member to retract away from the second detent; the component of the direction of the force in the first positioning groove enables the second end of the positioning piece to slide towards the first positioning groove.

The hinge assembly of claim 1, wherein the positioning member includes a positioning rod slidably received in the positioning hole, and an elastic member received in the positioning hole, the elastic member pushing against the positioning rod to extend the second end of the positioning rod out of the opening of the positioning hole, so that the second end of the positioning rod elastically abuts against the first positioning groove or the second positioning groove.

The hinge assembly of claim 5, wherein the positioning hole is a blind hole, the elastic member and the positioning rod are received in the positioning hole, and the elastic member abuts between the positioning rod and an end surface of the positioning hole.

The hinge assembly of claim 5, wherein the positioning rod has a receiving hole along a length direction thereof facing an end surface of the elastic member, and one end of the elastic member is received in the receiving hole.

The hinge assembly of claim 5, wherein the resilient member is a spring.

The hinge assembly of claim 1, wherein the inner surfaces of the first and second detents are arcuate surfaces having a radius of curvature such that the detent is securable within the detent.

The hinge assembly of claim 9, wherein the first detent and the second detent are connected by a convex arcuate surface, and the second end of the detent lever slides over the convex arcuate surface to automatically position the detent in the first detent or the second detent.

The hinge assembly of claim 1, wherein the positioning member is a positioning rod disposed in the positioning hole, and the positioning rod is made of a memory material that deforms under pressure.

The hinge assembly of claim 1, wherein each of the opposing sides of the second link is provided with one of the first links, the positioning hole is a through hole passing through each of the opposing sides of the second link, a positioning member is disposed in the through hole, the positioning member includes two positioning rods and an elastic member, first ends of the two positioning rods are received in the through holes, the elastic member is disposed between the first ends of the two positioning rods, and the elastic member elastically pushes the two positioning rods so that the first end of each positioning rod extends out of the opening of the positioning hole.

The hinge assembly of claim 12, wherein the alignment aperture is parallel to a deployment plane of the hinge assembly.

The hinge assembly of claim 12, wherein each of the positioning rods of the positioning member has an end surface facing the elastic member and a receiving hole along a length direction of the positioning rod, and opposite ends of the elastic member are received in the receiving holes of the two positioning rods.

A housing comprising a frame, characterized in that the housing further comprises a hinge device according to any one of claims 1-14, which is arranged on the frame.

An electronic device comprising a flexible screen, wherein the electronic device further comprises a housing according to claim 15, and wherein the flexible screen is disposed on the housing.