WO2024037140A1

WO2024037140A1 - Hinge device, folding housing and electronic apparatus

Info

Publication number: WO2024037140A1
Application number: PCT/CN2023/099019
Authority: WO
Inventors: 梁林生; 张前; 郑泽宽; 彭翊
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-08-19
Filing date: 2023-06-08
Publication date: 2024-02-22
Also published as: CN117628042A

Abstract

Provided in the present application is a hinge device, which comprises a hinge assembly, a torsion assembly and an elastic assembly. A rotating assembly comprises a first base and a rotating member, the rotating member being rotationally connected to the first base, and the rotating member comprising a first cam. The torsion assembly comprises a hinge and a hinge mounting member, the axis of the hinge being parallel to the rotation axis between the rotating member and the first base, the hinge mounting member being slidably sleeved on the hinge in the axial direction of the hinge, and the hinge mounting member comprising a first abutting cam. The elastic assembly comprises a first elastic member, two opposite ends of the hinge mounting member respectively abutting against the first elastic member and the rotating member, and the first elastic member abutting against and pushing the hinge mounting member so as to enable the first abutting cam and the first cam to rotationally abut against each other. When the rotating member rotates relative to the hinge mounting member, the first cam rotationally abuts against the first abutting cam, and the rotation of the rotating member is limited by means of the friction torsion between the first cam and the first abutting cam. Also provided in the present application are a folding housing provided with the hinge device and an electronic apparatus.

Description

Rotating shaft device, folding casing and electronic equipment

This application claims priority to the patent application filed with the China Patent Office on August 19, 2022, with the application number 202210997641.3 and the application name "Rotating Shaft Device, Folding Case and Electronic Equipment", the entire content of which is incorporated into this application by reference. middle.

Technical field

The present application relates to the field of flexible screen support, and in particular to a rotating shaft device for supporting a flexible screen, a folding housing provided with the rotating shaft device, and an electronic device provided with the folding housing.

Background technique

With the development of display equipment, bendable flexible displays have appeared. The current folding solutions for bendable flexible displays include inner folding and outer folding. Folding screens are becoming more and more popular among people. Folding screens in related technologies are generally supported by hinge mechanisms. However, most hinges currently use mechanisms such as damping sheets to achieve the hovering effect, which not only increases the number of components but also has poor hovering effects.

Contents of the invention

The present application provides a rotating shaft device, a folding case provided with the rotating shaft device, and an electronic device provided with the folding case.

The present application provides a rotating shaft device, which includes a rotating shaft component, a torsion component and an elastic component. The rotating component includes a first base and a rotating component. The rotating component is rotationally connected to the first base. The rotating component The component includes a first cam; the torsion component includes a rotating shaft and a rotating shaft mounting member; the axis of the rotating shaft is parallel to the rotating axis between the rotating member and the first base; the rotating shaft mounting member Slidingly sleeved on the rotating shaft along the axial direction of the rotating shaft, the rotating shaft mounting member includes a first resisting cam; the elastic component includes a first elastic member, and one end of the rotating shaft mounting member resists the third An elastic member, the other end of the rotating shaft mounting member away from the first elastic member resists the rotating member, and the first elastic member elastically pushes the rotating shaft mounting member so that the first resisting cam and the The first cams rotatably resist each other.

The present application also provides a folding shell. The folding shell includes two frames and a rotating shaft device. The rotating shaft device is located between the two frames. The opposite sides of the rotating shaft device are respectively connected to the two sides. the frame; the rotating shaft device includes a rotating shaft component, a torsion component and an elastic component; the rotating component includes a first base and a rotating member; the rotating member is rotationally connected to the first base; The rotating member includes a first cam; the torsion component includes a rotating shaft and a rotating shaft mounting member; the axis of the rotating shaft is parallel to the rotating axis between the rotating member and the first base; the rotating shaft is installed The component is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft, and the rotating shaft mounting member includes a first resisting cam; the elastic component includes a first elastic member, and one end of the rotating shaft mounting member resists the said rotating shaft. The first elastic member. The other end of the rotating shaft mounting member away from the first elastic member presses against the rotating member. The first elastic member elastically pushes the rotating shaft mounting member so that the first resisting cam and The first cams rotatably resist each other.

This application also provides an electronic device, which includes a rotating shaft device, a flexible screen and two frames. The rotating shaft device is located between the two frames. The opposite sides of the rotating shaft device are respectively connected to the two frames. The frame, the back of the flexible screen is attached to the front of the rotating shaft device and the front of the housing; the rotating shaft device is located between the two frames, and the opposite sides of the rotating shaft device are respectively Connected to the two frames; the rotating shaft device includes a rotating shaft component, a torsion component and an elastic component. The rotating component includes a first base and a rotating member. The rotating member is rotationally connected to the first base. , the rotating member includes a first cam; the torsion component includes a rotating shaft and a rotating shaft mounting The axis of the rotating shaft is parallel to the axis of rotation between the rotating element and the first base, and the rotating shaft mounting member is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft. , the rotating shaft mounting member includes a first abutment cam; the elastic component includes a first elastic member, one end of the rotating shaft mounting member abuts the first elastic member, and the rotating shaft mounting member is away from the first elastic member. The other end of the member resists the rotating member, and the first elastic member elastically pushes the rotating shaft mounting member so that the first resisting cam and the first cam rotatably resist each other.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the implementation. Obviously, the drawings in the following description are some implementations of the present application. For ordinary people in the art For technical personnel, other drawings can also be obtained based on these drawings without exerting creative work.

Figure 1 is a schematic three-dimensional structural diagram of an electronic device in the first embodiment of the present application;

Figure 2 is an exploded schematic diagram of the three-dimensional structure of the foldable housing and flexible screen of the electronic device in Figure 1;

Figure 3 is an exploded schematic diagram of the three-dimensional structure of the folding shell in Figure 2;

Figure 4 is an enlarged view of the three-dimensional structure of the rotating shaft device in Figure 3;

Figure 5 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 4;

Figure 6 is an enlarged view of part of the structure of the rotating shaft device in Figure 5;

Figure 7 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 6 from another perspective;

Figure 8 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 6;

Figure 9 is a schematic three-dimensional structural diagram of the rotating assembly in Figure 8 from another perspective;

Figure 10 is a further three-dimensional structural exploded view of the rotating assembly in Figure 8;

Figure 11 is a further three-dimensional structural exploded view of the rotating assembly in Figure 9;

Fig. 12 is an enlarged schematic diagram of the three-dimensional structure of the first base, the rotating member and the rotating shaft mounting member of the rotating shaft device in Fig. 10;

Figure 13 is a schematic three-dimensional structural diagram of the first base, the rotating member and the rotating shaft mounting member in Figure 12 from another perspective;

Figure 14 is a schematic three-dimensional structural view of the torsion component and the first linkage mechanism of the rotating shaft device in Figure 10;

Figure 15 is a schematic three-dimensional structural diagram of the torsion assembly and the first linkage mechanism in Figure 14 from another perspective;

Figure 16 is a schematic front structural view of the rotating shaft device in Figure 6;

Figure 17 is a perspective cross-sectional view of the rotating shaft device in Figure 6;

Figure 18 is another perspective cross-sectional view of the rotating shaft device in Figure 6;

Figure 19 is another perspective cross-sectional view of the rotating shaft device in Figure 6;

Figure 20 is a schematic three-dimensional structural diagram of the electronic device in Figure 1 in a folded state;

Figure 21 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 20;

Figure 22 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 21 from another perspective;

Figure 23 is a perspective cross-sectional view of the rotating shaft device in Figure 22;

Figure 24 is a perspective cross-sectional view of the rotating shaft device in Figure 21;

Figure 25 is another perspective cross-sectional view of the rotating shaft device in Figure 21;

Figure 26 is a schematic three-dimensional structural diagram of the rotating shaft device in the second embodiment of the present application;

Figure 27 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 26 from another perspective;

Figure 28 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 26;

Figure 29 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 28;

Figure 30 is a further three-dimensional structural exploded view of the rotating shaft device in Figure 28;

Figure 31 is a further three-dimensional structural exploded view of the rotating shaft device in Figure 29;

Figure 32 is a schematic front structural view of the rotating shaft device in Figure 26;

Figure 33 is a perspective cross-sectional view of the rotating shaft device in Figure 26;

Figure 34 is another perspective cross-sectional view of the rotating shaft device in Figure 26;

Figure 35 is another perspective cross-sectional view of the rotating shaft device in Figure 26;

Figure 36 is a schematic three-dimensional structural diagram of the fully folded state of the rotating shaft device in Figure 26;

Figure 37 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 36 from another perspective;

Figure 38 is a perspective cross-sectional view of the rotating shaft device in Figure 37;

Figure 39 is a perspective cross-sectional view of the rotating shaft device in Figure 36;

Figure 40 is another perspective cross-sectional view of the rotating shaft device in Figure 36;

Figure 41 is a schematic three-dimensional structural diagram of the rotating shaft device in the third embodiment of the present application;

Figure 42 is a schematic three-dimensional structural diagram of the rotating shaft device in Figure 41 from another perspective;

Figure 43 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 41;

Figure 44 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft device in Figure 42;

Figure 45 is a schematic front structural view of the rotating shaft device in Figure 41;

FIG. 46 is a perspective cross-sectional view of the rotating shaft device in FIG. 41 .

Main label description:
100. Electronic equipment; 30. Flexible screen; 31. Bendable area; 33. Non-bending area; 20. Folding casing; 21. Frame; 211. Front; 213. Back; 214. Side; 215. End face ; 216. Receiving groove; 22, 22a, 22b, rotating shaft device; 23. Rotating assembly; 231. First base; 2312. First arc groove; 2313. Avoidance groove; 2314. Guide rail; 2315. Guide Groove; 2316, contact surface; 2317, second anti-skid part; 2318, connecting hole; 233, rotating member; 2330, first cam; 2331, first anti-skid part; 2332, first arc rail; 2333, First rotating part; 2334, first connecting hole; 2335, second rotating part; 2336, lug; 2337, adjusting rod; 234, connecting piece; 2340, connecting rod; 2342, connecting shaft; 2343, adapter slot; 2345. Second connection hole; 2346. First guide slide groove; 2347. Second arc rail; 2348. Second guide slide groove; 24. Elastic component; 241. First elastic member; 243. Second elastic member; 25. 25a, 25b, torsion component; 250, second rotating shaft; 2501, first rotating shaft section; 2503, second rotating shaft section; 2505, third rotating shaft section; 251, rotating shaft mounting piece; 2510, first resisting cam; 2511. Installation block; 2513. Push rod; 2514. Push hole; 2515. Guide hole; 2516. Guide slide; 2517. Stop surface; 252. First torsion piece; 2520. First rotating part; 2521. The first rotating cylinder; 2522, the first shaft hole; 2523, the second resisting cam; 2524, the first protruding portion; 2525, the first connecting portion; 2526, the first recess; 2527, the first guide rail; 2528 , the second adjusting lever; 253, the first rotating shaft; 2531, the first shaft; 2533, the second shaft; 2535, the third shaft; 254, the first resisting member; 2540, the second cam; 2541, the third A resisting tube; 2543. The third protruding part; 2545. The third recessed part; 2546. The first connecting part; 2548. The first sliding hole; 257. The second resisting member; 2570. The third cam; 2571 , the second resisting tube; 2572, the fourth shaft hole; 2576, the second connecting part; 2578, the second guide hole; 28, the support component; 280, the middle support; 281, the side support; 2812, the first Two arc grooves; 255, second base; 2551, second base body; 2553, first connecting plate; 2552, connecting hole; 2554, first top surface; 2556, third Three-axis hole; 2557, first mounting hole; 256, second torsion piece; 2560, second rotating part; 2561, second rotating cylinder; 2562, second axis hole; 2563, third resisting cam; 2564, third Two protruding parts; 2565, second connecting part; 2566, second recessed part; 2567, second guide slide rail; 258, third base; 2581, third base body; 2583, second connecting plate; 2584, second top surface; 2586, fifth shaft hole; 2587, second mounting hole; 26, first linkage component; 261, first gear; 263, first driven gear set; 2630, first driven gear; 2631. First connecting shaft; 2631a, connecting section; 2631b, guide sliding section; 2631c, connecting section; 2632, sleeve; 26a, second linkage component; 261a, second gear; 263a, second driven gear set; 2730. The second driven gear; 2731. The second connecting shaft; 259. The third torsion piece; 2590. The third rotating part; 2591. The third rotating cylinder; 2592. The sixth shaft hole; 2593. The fourth resisting cam ; 2594. The fifth protruding part; 2595. The third connecting part; 2596. The fifth recessed part; 26b. The third linkage component; 261b. The third gear; 263b. The third driven gear set; 29. Back cover; 290. Containment tank.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

In addition, the following description of the embodiments refers to the accompanying figures to illustrate specific embodiments in which the present application may be implemented. The directional terms mentioned in this application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only Reference is made to the direction of the attached drawings. Therefore, the directional terms used are for the purpose of better and clearer description and understanding of the present application, and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be in a specific orientation. construction and operation, and therefore should not be construed as limitations on this application. The term "natural state" refers to a state in which a device or component is not subject to external forces, such as tension or pressure.

In the description of this application, it should be noted that, unless otherwise explicitly stated and limited, the terms "installed", "connected", "connected", and "disposed on..." should be understood in a broad sense. For example, it can be A fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

On the one hand, the present application provides a rotating shaft device. The rotating shaft device includes a rotating component, a torsion component and an elastic component. The rotating component includes a first base and a rotating component. The rotating component is rotationally connected to the first component. Base, the rotating member includes a first cam; the torsion component includes a rotating shaft and a rotating shaft mounting member, the axis of the rotating shaft is parallel to the rotating axis between the rotating member and the first base , the rotating shaft mounting member is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft, the rotating shaft mounting member includes a first resisting cam; the elastic component includes a first elastic member, and the rotating shaft mounting member One end of the rotating shaft mounting member presses against the first elastic member, and the other end of the rotating shaft mounting member away from the first elastic member presses against the rotating member. The first elastic member elastically pushes the rotating shaft mounting member so that the third rotating shaft mounting member A resisting cam and the first cam rotatably resist each other.

Optionally, the rotating shaft mounting member is slidably connected to the first base along the axial direction of the rotating shaft, and the first elastic member elastically pushes the rotating shaft mounting member against the rotating member, so that The side of the rotating member facing away from the rotating shaft mounting member presses against the first base.

Optionally, the torsion component further includes a first torsion member and a first resisting member, the first torsion member is rotationally connected to the rotating shaft, and the first resisting member slides along the axial direction of the rotating shaft. The first resisting member is sleeved on the rotating shaft, the first resisting member is located between the first torsion member and the first elastic member, and the first elastic member elastically pushes the first resisting member against the The first torsion member; when the first torsion member rotates around the rotating shaft, the first torsion member pushes the first resisting member to move along the axial direction of the rotating shaft to squeeze the third An elastic member.

Optionally, the first torsion member includes a second resisting cam, the first resisting member includes a second cam, and the rotating shaft passes through the second resisting cam and the second cam, so The second cam and the second resisting cam rotatably resist each other.

Optionally, the rotating assembly includes two first bases, one rotating member is provided on opposite sides of each first base, and each rotating member is connected to a corresponding first base. The bases rotatably abut each other; the torsion assembly is provided between the two first bases, and the torsion assembly includes two rotating shaft mounting parts, each of the rotating shaft mounting parts is arranged along the axis of the rotating shaft. axially slidingly connected to the corresponding first base, each of the rotating shaft mounting parts includes two first resisting cams, and the two first resisting cams of each rotating shaft mounting part are respectively connected to The first cams of the two corresponding rotating parts are rotationally resisted.

Optionally, the rotating shaft of the torsion assembly includes a pair of parallel first rotating shafts, the torsion assembly includes a pair of the first torsion parts, and the two rotating shaft mounting members are respectively slidably sleeved on the pair of first rotating shafts. At opposite ends of the first rotating shaft, a pair of first torsion members are respectively rotatably sleeved on a pair of first rotating shafts, and the first resisting members include a pair of first torsion members respectively sleeved on a pair of first rotating shafts. The two second cams are rotatably resisted by the second resisting cams of a pair of the first torsion members respectively.

Optionally, the elastic component further includes a second elastic member, the first elastic member is clamped between the first resisting member and one of the rotating shaft mounting members, and the second elastic member is Clamped between another rotating shaft mounting piece and a pair of first torsion pieces.

Optionally, the torsion assembly further includes a second base, the second base is sleeved on a pair of the first rotating shafts, and a pair of the first torsion members is away from the first resisting member. The side abuts against the second base, and the second elastic member is clamped by the second base and the other rotating shaft mounting member.

Optionally, the rotating shaft device further includes a first linkage component, which includes a first gear respectively provided on a pair of the first torsion members and a first gear provided between the two first gears. In the first driven gear set, the first gears on the pair of first torsion parts are respectively meshed with the first driven gear set, so that the pair of first torsion parts rotate synchronously.

Optionally, the rotating assembly further includes two connecting pieces located on opposite sides of the torsion assembly, and the ends of the two rotating pieces on the same side away from the first base are rotationally connected to the corresponding connecting piece. , one end of the first torsion component away from the corresponding first rotating shaft is slidably connected to the corresponding connecting component.

Optionally, the rotating shaft of the torsion assembly includes two pairs of second rotating shafts, the two pairs of second rotating shafts are arranged along the direction of the rotation axis between the rotating member and the first base, and the torsion assembly It also includes a pair of second torsion members and a second resisting member, two pairs of second rotating shafts, a pair of the first torsion members, a pair of the second torsion members, the first resisting member and the second The resisting member is located between the two first bases, the ends of the two pairs of second rotating shafts facing away from each other are respectively connected to the rotating shaft mounting members, and the pair of first torsion members are respectively rotatably sleeved. On one pair of the second rotating shafts, a pair of the second torsion members are rotatably sleeved on the other pair of the second rotating shafts, and the first resisting member is slidably sleeved on one of the pair of second rotating shafts. As for the second rotating shaft, the second resisting member is slidably sleeved on the other pair of second rotating shafts.

Optionally, the second resisting member includes two third cams respectively sleeved on the other pair of second rotating shafts, and each second torsion member includes a third resisting member sleeved on the corresponding second rotating shaft. The two third cams of the second resisting member are rotatably resisted by the pair of third resisting cams of the pair of second torsion members respectively.

Optionally, the torsion assembly further includes a third base, the third base is connected between two pairs of the second rotating shafts, and a pair of the first torsion members is away from the first resisting member. One side is against the third base, and the side of the pair of second torsion members away from the second resisting member is against the corresponding rotating shaft mounting member.

Optionally, the elastic component includes two first elastic members and two second elastic members. The two first elastic members are respectively sleeved on one of the pair of second rotating shafts. The two first elastic members are respectively sleeved on one of the second rotating shafts. The second elastic members are respectively sleeved on the other pair of second rotating shafts, and the two second elastic members The piece is clamped by the third base and the second resisting piece, and one end of the second elastic piece elastically pushes the second resisting piece against a pair of second torsion pieces, so that the The second torsion member presses against the corresponding rotating shaft mounting member, so that the rotating shaft mounting member presses the corresponding rotating member against the corresponding first base, and the other end of the second elastic member presses against the third base. seat.

Optionally, the rotating shaft device further includes a second linkage component, the second linkage component includes a second gear respectively provided on a pair of the second torsion members and a second gear provided between the two second gears. In the second driven gear set, the second gear of each second torsion member is meshed with the second driven gear set respectively, so that a pair of the second torsion members rotate synchronously.

Optionally, the rotating shaft of the rotating assembly includes two pairs of second rotating shafts, the two pairs of second rotating shafts are arranged along the direction of the rotating axis between the rotating member and the first base, and the torsion assembly It also includes a pair of third torsion members and a pair of second resistance members, two pairs of second rotating shafts, a pair of first torsion members, a pair of third torsion members, and the first resistance members. And a pair of the second resisting members is located between the two first bases, the ends of the two pairs of second rotating shafts facing away from each other are respectively connected to the two rotating shaft mounting members, a pair of the The first torsion members are respectively rotatably sleeved on one pair of the second rotating shafts, and the pair of the third torsion members are respectively rotatably sleeved on the other pair of the second rotating shafts. One pair of second resisting members is slidably sleeved on one of the pair of second rotating shafts, a pair of second resisting members is slidably sleeved on the other pair of second rotating shafts, and a pair of second resisting members clamps a to the third torsion piece.

Optionally, the third torsion member includes two fourth abutment cams, and the two fourth abutment cams are respectively provided at opposite ends of the third torsion member along the axial direction of the second rotating shaft, Each second resisting member includes two third cams, wherein the two third cams of one second resisting member are respectively connected with the two fourth cams on one side of a pair of third torsion members. The resisting cam is rotatably resisted, and the two third cams of the other second resisting member are rotatably resisted by the two fourth resisting cams on the opposite side of the pair of third torsion members. hold.

Optionally, the elastic component includes two first elastic members and two second elastic members. The two first elastic members are respectively sleeved on one of the pair of second rotating shafts. The two first elastic members are respectively sleeved on one of the second rotating shafts. The first elastic member is clamped by the first resisting member and one of the second resisting members. One end of the first elastic member elastically pushes the first resisting member against a pair of the second resisting members. A torsion member allows the two second cams of the first resisting member to cooperate with the two second resisting cams of a pair of the first torsion members and push against each other, and the other part of the first elastic member One end pushes against one of the second resisting members, so that the two third cams of the second resisting member are respectively connected with the two fourth resisting cams on one side of the pair of third torsion members. Cooperating and pushing against each other; the two second elastic members are respectively sleeved on the other pair of second rotating shafts, and the two second elastic members are connected by the other second resisting member and the corresponding rotating shaft. The installation piece clamps, and one end of the second elastic member elastically pushes the other second resisting member against a pair of the third torsion members, so that the two second resisting members of the other second resisting member The third cam cooperates with the two fourth resisting cams on the other side of the pair of third torsion members and resists each other. The other end of the second elastic member elastically pushes the corresponding rotating shaft mounting member to resist the pair. The rotating member causes the two first resisting cams of the rotating shaft mounting member to cooperate with a pair of first cams of the rotating member respectively and resist each other.

On the other hand, the present application provides a folding case, which includes two frames and a rotating shaft device. The rotating shaft device includes a rotating component, a torsion component and an elastic component. The rotating component includes a first base. and a rotating member, the rotating member is rotationally connected to the first base, the rotating member includes a first cam, the torsion component includes a rotating shaft and a rotating shaft mounting piece, the axis line of the rotating shaft is parallel to the The rotation axis center line between the rotating member and the first base, the rotating shaft mounting member is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft, and the rotating shaft mounting member includes a first resisting cam, The elastic component includes a first elastic member. One end of the rotating shaft mounting member abuts the first elastic member, and the other end of the rotating shaft mounting member away from the first elastic member abuts the rotating member. The first elastic member elastically pushes the rotating shaft mounting member so that the first resisting cam and the first cam rotatably resist each other; the rotating shaft device is located between the two frames, and the rotating shaft The opposite sides of the device are respectively connected to the two frames.

In another aspect, the present application provides an electronic device. The electronic device includes a rotating shaft device, a flexible screen and two frames. The rotating shaft device includes a rotating component, a torsion component and an elastic component. The rotating component includes a first base. The base and the rotating member are rotatably connected to the first base. The rotating member includes a first cam. The torsion component includes a rotating shaft and a rotating shaft mounting member. The axis line of the rotating shaft is parallel to the first cam. The rotation axis center line between the rotating member and the first base, the rotating shaft mounting member is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft, and the rotating shaft mounting member includes a first resisting cam , the elastic component includes a first elastic member, one end of the rotating shaft mounting member abuts the first elastic member, and the other end of the rotating shaft mounting member away from the first elastic member abuts the rotating member, so The first elastic member elastically pushes the rotating shaft mounting member so that the first resisting cam and the first cam rotatably resist each other; the rotating shaft device is located between the two frames, and the The opposite sides of the rotating shaft device are respectively connected to the two frames, and the back of the flexible screen is attached to the front of the rotating shaft device and the front of the frame.

Please refer to FIGS. 1 to 9 together. The electronic device 100 in the first embodiment of the present invention includes a foldable housing 20 and a flexible screen 30 disposed on the foldable housing 20 . The flexible screen 30 can be a flexible display screen, a flexible touch screen, a flexible touch display screen, and other flexible parts with corresponding functions, or a flexible part fixedly attached to a flexible support plate, such as a flexible display screen attached to a flexible steel plate, Flexible touch screen, etc. The flexible screen 30 is folded or flattened with the folding housing 20 . The foldable housing 20 includes two frames 21 and a rotating shaft device 22 connected between the two frames 21 . The two frames 21 can be folded or flattened through the rotating shaft devices 22 . The flexible screen 30 includes a bendable area 31 corresponding to the rotating shaft device 22 , and two non-bending areas 33 connected to opposite sides of the bendable area 31 . The back side of the flexible screen 30 is attached to the front side of the rotating shaft device 22 and the front sides of the two frames 21. Specifically, the back sides of the two non-bending areas 33 of the flexible screen 30 are respectively fixedly connected to the front sides of the two frames 21. The back side of the bendable area 31 is attached to the front side of the rotating shaft device 22 . The bendable area 31 of the flexible screen 30 can be folded or flattened with the rotating shaft device 22 . The rotating shaft device 22 includes a rotating component 23, a torsion component 25, an elastic component 24 and a supporting component 28. The rotating component 23 includes a first base 231, a rotating member 233 and a connecting member 234. One end of the rotating member 233 is rotatably connected to the first base. The base 231, the other end of the rotating member 233 away from the first base 231 is rotatably connected to the connecting member 234; the rotating member 233 includes a first cam 2330; the torsion component 25 includes a rotating shaft and a rotating shaft mounting member 251, the axis of the rotating shaft is parallel On the rotation axis center line between the rotating member 233 and the first positioning seat 231, the rotating shaft mounting member 251 is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft. The rotating shaft mounting member 251 includes a first resisting cam 2510; an elastic component. 24 includes a first elastic member 241. One end of the rotating shaft mounting member 251 presses against the first elastic member 241. The other end of the rotating shaft mounting member 251 away from the first elastic member 241 presses against the rotating member 233. The first elastic member 241 provides a push against the rotating shaft. Due to the pre-elastic force of the mounting member 251, the first elastic member 241 elastically pushes against the rotating shaft mounting member 251 so that the first resisting cam 2510 and the first cam 2330 rotatably resist each other. The side of the rotating member 233 away from the rotating shaft mounting member 251 and The first base 231 is rotatably abutted. When the rotating member 233 rotates relative to the first base 231, the first cam 2330 of the rotating member 233 rotates against the first resisting cam 2510, and the friction torque between the first cam 2330 and the first resisting cam 2510 is limited. The rotary member 233 rotates relative to the first base 231 . The support component 28 is connected to the front of the rotation component 23 and the torsion component 25 . The support component 28 is folded or flattened by the rotation of the rotation component 233 relative to the first base 231 . The bendable area 31 of the flexible screen 30 moves with the support component 28 Achieve bending or flattening.

As shown in Figures 10 and 11, further, the rotating shaft mounting member 251 is slidably connected to the first base 231 along the axial direction of the rotating shaft, and the first elastic member 241 elastically pushes the rotating shaft mounting member 251 against the rotating member 233. The side of the rotating member 233 away from the rotating shaft mounting member 251 is pressed against the first base 231 . When the rotating member 233 rotates relative to the first base 231, there is frictional torque between the rotating member 233 and the rotating shaft mounting member 251, and at the same time, there is frictional resistance between the rotating member 233 and the first base 231. Specifically, the side of the rotating member 233 away from the rotating shaft mounting member 251 conflicts with the first base 231 , and the first resisting cam 2510 and the first cam 2330 rotatably resist each other. When the rotating member 233 rotates relative to the first base 231, there is friction torque between the first resisting cam 2510 and the first cam 2330. At the same time, the rotating member 233 There is frictional resistance between the first base 231 and the first base 231 to limit the rotation of the rotating member 233 relative to the first base 231 and the rotating shaft mounting member 251 . Preferably, a first anti-slip portion 2331 is provided on the side of the rotating member 233 away from the rotating shaft mounting member 251 . The first anti-slip portion 2331 may be, but is not limited to, a protrusion, a hole or a rough surface provided on the rotating member 233 . In this embodiment, the first anti-slip portion 2331 on the side of the rotating member 233 away from the rotating shaft mounting member 251 is a plurality of anti-slip holes. These anti-slip holes can increase the frictional resistance between the rotating member 233 and the first base 231 . In other embodiments, the first base 231 may also be provided with an anti-skid portion corresponding to the first anti-skid portion 2331 of the rotating member 233 .

In this embodiment, the front surface refers to the surface facing the same direction as the light exit surface of the flexible screen 30 , and the back surface refers to the surface facing away from the light exit surface of the flexible screen 30 . The electronic device 100 is, for example, but is not limited to a mobile phone, a tablet computer, a monitor, a liquid crystal panel, an OLED panel, a TV, a smart watch, a VR head-mounted display, a vehicle-mounted display, or any other product and component with a display function. "Connection" in the description of the embodiment of the present invention includes both direct connection and indirect connection. For example, the connection between A and B includes the direct connection between A and B or the connection through a third element C or more other elements. Connection also includes two situations: integrated connection and non-integrated connection. Integrated connection means that A and B are integrated and connected, and non-integrated connection means that A and B are not integrated and connected.

The support component 28 of the rotating shaft device 22 of the electronic device 100 of the present invention is disposed on the rotating component 23 and the torsion component 25. The rotating member 233 is rotatably connected between the first base 231 and the supporting component 28. The rotating shaft mounting member 251 is installed along The rotating shaft is axially slidably connected to the first base 231. The rotating member 233 and the rotating shaft mounting member 251 are rotatably resisted by the first cam 2330 and the first resisting cam 2510. The first elastic member 241 elastically resists. The rotating shaft mounting member 251 abuts the rotating member 233 so that the rotating member 233 and the first base 231 rotatably abut. When the rotating member 233 rotates relative to the first base 231, the first cam 2330 of the rotating member 233 rotationally resists the first resisting cam 2510 of the rotating shaft mounting member 251, causing the rotating shaft mounting member 251 to move along the axial direction of the rotating shaft. The first elastic member 241 is squeezed to elastically deform the first elastic member 241 . At this time, there is frictional torque between the rotating member 233 and the rotating shaft mounting member 251 and there is frictional resistance between the rotating member 233 and the first base 231. Without external force, the frictional torque and the frictional resistance can limit the position. The rotating member 233 remains stationary relative to the first base 231, so that the support assembly 28 remains stationary in the bent state or the flattened state, so as to achieve hovering of the support assembly 28, so that the electronic device 100 has a hovering effect; secondly, The hovering effect of the rotating shaft device 22 is achieved through the frictional torque between the rotating member 233 and the rotating shaft mounting member 251 and the frictional resistance between the rotating member 233 and the first base 231. Therefore, the hovering effect of the rotating shaft device 22 is stable. ; In addition, the first elastic member 241 elastically pushes the rotating shaft mounting member 251 against the rotating member 233 so that the rotating member 233 presses against the first base 231, so that the structure of the rotating shaft device 22 is compact and the volume of the rotating shaft device 22 is reduced, thereby Reducing the internal space occupied by the rotating shaft device 22 in the folding case 20 is not only conducive to the layout of other components such as the motherboard or battery, but also is conducive to miniaturization development; in addition, the rotating shaft device 22 has a simple structure, low manufacturing cost, and each The connection between components has high reliability and the strength of the whole machine is improved.

As shown in FIGS. 4 to 11 , in this embodiment, the rotating assembly 23 includes two first bases 231 and two connecting pieces 234 . The two first bases 231 are spaced apart from each other along the axial direction of the rotating shaft. The torsion assembly 25 It is located between two first bases 231, that is, the two first bases 231 are respectively located at two opposite ends of the torsion component 25. Each first base 231 is provided with a rotating member 233 on both opposite sides, that is, The two rotating members 233 are respectively rotatably connected to the opposite sides of the first base 231; the torsion assembly 25 includes two rotating shaft mounting members 251, and the rotating shaft of the torsion assembly 25 includes a pair of parallel spaced first rotating shafts 253, two The rotating shaft mounting parts 251 are respectively slidably connected to the opposite ends of the pair of first rotating shafts 253 along the axial direction of the first rotating shaft 253 . The two sides of the two rotating shaft mounting parts 251 that are away from each other are slidingly connected along the axial direction of the first rotating shaft 253 . on the two first bases 231. The rotating shaft mounting member 251 is provided with two first resisting cams 2510 corresponding to the first cams 2330 of the two rotating members 233 on the first base 231 . The elastic component 24 includes a pair of first elastic members 241 and a pair of second elastic members 243. The pair of first elastic members 241 elastically pushes one of the rotating shaft mounting members 251 so that the two first resisting cams of the rotating shaft mounting member 251 2510 rotatably resists the first cams 2330 of the two corresponding rotating parts 233 respectively, so that each rotating part 233 can rotate with the corresponding first base 231 Pushing against; a pair of second elastic members 243 elastically push against another rotating shaft mounting member 251 so that the two first pushing cams 2510 of the rotating shaft mounting member 251 rotate with the first cams 2330 of the two corresponding rotating members 233 respectively. against the ground, so that each rotating member 233 can rotate with the corresponding first base 231; that is, the two rotating members 233 provided on each first base 231 can respectively connect with the corresponding rotating shaft mounting member 251. Rotate to the top. Two connecting parts 234 are provided on opposite sides of the torsion component 25. The ends of the two rotating parts 233 on each first base 231 away from the first base 231 are respectively rotatably connected to the two connecting parts 234. Member 234 is connected to support assembly 28. The support assembly 28 includes a middle support member 280 connected to the front center of the rotating assembly 23 and two side support members 281 located on opposite sides of the middle support member 280. The middle support member 280 is connected to the rotating assembly 23, and the two side support members 281 are respectively connected to the rotating component 23 and the torsion component 25. The two side supports 281 are bent or flattened relative to the middle support 280 through the rotating component 23 and the torsion component 25, thereby realizing the folding or flattening of the support component 28. When the support assembly 28 is in a flat state, the front faces of the two side supports 281 and the front face of the middle support member 280 are coplanar, and the bendable area 31 of the flexible screen 30 is connected to the front and side supports of the middle support member 280 the front of the two side supports 281 and the front of the middle support 280 form a water drop-shaped or U-shaped space in cross-section, so that the flexible screen The bendable area 31 of the flexible screen 30 is bent into a water drop shape or a U shape; in this embodiment, the bendable area 31 of the flexible screen 30 is bent into a water drop shape. When the rotating member 233 rotates relative to the first base 231, the first cam 2330 of the rotating member 233 rotationally pushes against the corresponding first resisting cam 2510, so that the rotating shaft mounting member 251 moves along the axial direction of the first rotating shaft 253 to squeeze. Press the first elastic member 241; at this time, the frictional torque between the opposing first cam 2330 and the first resisting cam 2510 and the frictional resistance between the rotating member 233 and the corresponding first base 231 are used to limit the rotation. The rotating member 233 rotates relative to the first base 231 and the rotating shaft mounting member 251. Without external force, the rotating member 233 remains motionless relative to the first base 231 and the rotating shaft mounting member 251 to realize the suspension of the rotating shaft device 22. Stop, thereby realizing the hovering of the electronic device 100.

In this embodiment, the hovering effect of the rotating shaft device 22 is achieved through the frictional torque between the two rotating parts 233 on the two first bases 231 and the corresponding rotating shaft mounting parts 251, and the frictional torque on each first base 231. The friction resistance between the two rotating members 233 and the corresponding first base 231 is jointly realized. Therefore, the hovering effect of the rotating shaft device 22 is stable; in addition, the two first elastic members 241 elastically push one of the rotating shafts. The two second elastic members 243 elastically push another rotating shaft mounting member 251 against the two corresponding first bases 231 . The two rotating members 233 are pressed against the corresponding first base 231, so that the structure of the rotating shaft device 22 is compact, and the volume of the rotating shaft device 22 is reduced, thereby reducing the occupation of the folding housing 20 by the rotating shaft device 22. The internal space is not only conducive to the layout of other components such as motherboards or batteries, but also is conducive to miniaturization development; in addition, since the two first bases 231 of the rotating shaft device 22 have the same structure, and the four rotating parts 233 have the same structure The structures of the two rotating shaft mounting parts 251 are also the same and the structures of the two connecting parts 234 are the same. Therefore, each component can be manufactured in batches, which reduces the manufacturing cost. Moreover, the structure of the rotating shaft device 22 is simple and the connection between the components is High reliability and improved overall machine strength.

As shown in FIGS. 10 to 13 , the rotation axis between the rotating member 233 and the first base 231 is parallel to the axis of the first rotating shaft 253 . During the rotation of the rotating member 233 relative to the first base 231 , the rotating member 233 and the rotating shaft mounting member 251 can both move along the axial direction of the first rotating shaft 253, and both the first elastic member 241 and the second elastic member 243 are extruded to expand and contract along the axial direction of the first rotating shaft 253. The rotating shaft mounting part 251 has a resisting force along the axial direction of the first rotating shaft 253 against the rotating parts 233 on the two first bases 231 respectively. If the elastic thrust of each first elastic member 241 along the axial direction of the first rotating shaft 253 is F1, and the elastic thrust of each second elastic member 243 along the axial direction of the first rotating shaft 253 is F2; when the rotating shaft device 22 is at In the flat state, the supporting force of each rotating shaft mounting part 251 on the corresponding rotating part 233 is 2F1, and the supporting force of the other rotating shaft mounting part 251 on the corresponding rotating part 233 is 2F2. Preferably, the first elastic member 241 and the second elastic member 243 are both the same spring. Therefore, the two rotating shaft mounting members 251 exert the same resisting force on the corresponding rotating member 233 respectively. Each first base 231 The two rotating members 233 respectively have the same resisting force on the first base 231 along the axial direction parallel to the first rotating shaft 253 .

The rotating member 233 and the corresponding first base 231 are connected through the matching of the first arc groove 2312 and the first arc rail 2332. The first arc groove 2312 is provided in the first base 231 and the rotating member 233. One, the first arc rail 2332 is provided on the other of the rotating member 233 and the first base 231; the axis line of the first arc groove 2312 is collinear with the axis line of the first arc rail 2332, The axis of the first arc rail 2332 is collinear with the axis of rotation between the rotating member 233 and the first base 231 . In this embodiment, first arc grooves 2312 are provided on opposite sides of the front of the first base 231 respectively. The end of the rotating member 233 away from the connecting member 234 is provided with a first arc rail corresponding to the first arc groove 2312. 2332, so that the rotating member 233 and the first base 231 rotate relative to each other along the first arc groove 2312.

In some embodiments, the first arc groove can also be provided on the rotating member 233, the arc rail can also be provided on the first base 231, and the arc rail is slidably accommodated in the arc groove. Specifically, the end of the rotating member 233 away from the connecting member 234 is provided with an arc groove, and the first base 231 is provided with an arc rail corresponding to the arc groove.

As shown in Figures 4-5 and 10-13, in this embodiment, the first base 231 includes two first seats that can interlock with each other, and the end of the rotating member 233 away from the connecting member 234 is clamped between the two first bodies. Specifically, the first base 231 is in the form of a rectangular block, and first arc grooves 2312 are respectively provided on two opposite sides of the front of the first base 231 . The axes of the two first arc grooves 2312 of the first base 231 are parallel. The first base 231 is provided with an escape groove 2313 on the side of each first arc groove 2312 away from the other first arc groove 2312. The escape groove 2313 is used to escape the rotating member 233. The rotating shaft mounting part 251 is slidably connected to the corresponding first base 231 through the cooperation of the guide rail and the guide slide groove. The extending direction of the guide slide groove is parallel to the axial direction of the first rotating shaft 253. The guide slide rail is provided with The guide slide groove is provided in one of the first base 231 and the rotating shaft mounting member 251 , and is provided in the other one of the rotating shaft mounting member 251 and the first base 231 . In this embodiment, one end of the first base 231 facing the rotating shaft mounting part 251 is provided with a guide slide rail 2314. The rotating shaft installation part 251 is provided with a guide slide groove corresponding to the guide slide rail 2314. The guide slide rail 2314 is slidably accommodated. In the guide slide groove; preferably, a guide slide rail 2314 is provided in the middle of the end face of the first base 231 facing the rotating shaft mounting member 251. The first base 231 is provided with a guide groove 2315 at one end close to the guide slide rail 2314. The guide groove 2315 is connected with the first arc groove 2312 along the axial direction of the first rotating shaft 253, so that the guide groove 2315 is connected with the first arc groove. 2312 connected. When the first resisting cam 2510 of the rotating shaft mounting member 251 is accommodated in the guide groove 2315 and the first arc rail 2332 is accommodated in the corresponding first arc groove 2312, the first resisting cam 2510 and the corresponding first cam 2330 abuts, and the side of the rotating member 233 away from the rotating shaft mounting member 251 and the first base 231 abut the first arc rail 2332. In this embodiment, one end of the first base 231 close to the rotating shaft mounting member 251 is provided with guide grooves 2315 on opposite sides of the guide rail 2314. The two guide grooves 2315 are respectively parallel to the axis of the first arc groove 2312. The linear direction extends into the two first arc grooves 2312, that is, the two guide grooves 2315 are respectively connected with the two first arc grooves 2312. The first base 231 is provided with a contact surface 2316 at one end of each first arc groove 2312 away from the guide groove 2315. The first resisting cam 2510 can contact the first cam 2330 to install the first arc rail 2332 away from the rotating shaft. The side surface of the component 251 abuts the corresponding abutment surface 2316 . When the rotating member 233 rotates relative to the first base 231, there is friction resistance between the side of the first arc rail 2332 away from the first cam 2330 and the abutment surface 2316. Preferably, a second anti-slip portion 2317 is provided on the contact surface 2316 of the first base 231 . The second anti-slip portion 2317 may be, but is not limited to, a protrusion, a hole or a rough surface provided on the rotating member 233 . . In this embodiment, the second anti-skid portion 2317 on the contact surface 2316 of the first base 231 is a plurality of anti-skid holes. These anti-skid holes can increase the friction between the rotating member 233 and the first base 231 resistance. A plurality of connection holes 2318 are provided on the front of the first base 231 . Two of the connection holes 2318 are located at an end of the first base 231 away from the guide rail 2314 , and the other connection hole 2318 is located on the front of the guide rail 2314 .

The rotating member 233 includes a first rotating part 2333 and a second rotating part 2335 connected to the first rotating part 2333. The first rotating part 2333 is rotationally connected to the first base 231, and the second rotating part 2335 is rotationally connected to the connecting piece 234. connect. Specifically, the second rotating part 2335 and the connecting piece 234 are connected through a connecting shaft and a connecting hole. The connecting shaft is provided at one of the second rotating part 2335 and the connecting piece 234 . Alternatively, the connecting hole is provided in the other one of the second rotating part 2335 and the connecting piece 234 . In this embodiment, the end of the second rotating part 2335 away from the first rotating part 2333 is provided with two lugs 2336 spaced apart from each other. A relief groove is formed between the two lugs 2336. The two lugs 2336 are arranged along parallel lines. A first connecting hole 2334 is provided in the axial direction of a rotating shaft 253 , and the connecting member 234 is provided with a connecting shaft that passes through the first connecting hole 2334 . Preferably, the end of the lug 2336 away from the first rotating part 2333 is formed as an arc surface to facilitate the rotation of the rotating member 233 relative to the connecting member 234 . The first cam 2330 and the first arc rail 2332 are respectively protruding from opposite ends of the first rotating part 2333. The end of each rotating member 233 away from the first base 231 is provided with a first adjusting rod 2337. The axis line of the first adjusting rod 2337 is parallel to the axis line of the first rotating shaft 253; the back side of the side support member 281 is provided with a first adjusting rod 2337. Corresponding to the first adjustment groove of the first adjustment rod 2337, the first adjustment rod 2337 is rotatably inserted into the corresponding first adjustment groove; when the rotating member 233 rotates relative to the first base 231, the first adjustment rod 2337 Slide along the corresponding first adjustment groove.

Please refer to Figures 6 to 11 together. The connecting member 234 includes a rectangular connecting rod 2340 and two connecting shafts 2342 provided at opposite ends of the connecting rod 2340. The two rotating members 233 on the same side of the torsion component 25 are away from the corresponding first The ends of the base 231 are rotatably connected to the two opposite ends of the connecting rod 2340 through two connecting shafts 2342. Specifically, the connecting rod 2340 is provided with two adapter slots 2343 spaced apart from each other at the two opposite ends of the front thereof. The connecting rod 2340 is provided with second connecting holes 2345 at the opposite ends. Each second connecting hole 2345 is parallel to the first connecting hole 2345 . A rotating shaft 253 extends axially and communicates with the corresponding connecting groove 2343. The two second connecting holes 2345 on each connecting rod 2340 are coaxial. A first guide groove 2346 is provided in the middle of the connecting member 234 . The first guide groove 2346 extends along the axial direction perpendicular to the first rotating shaft 253 and passes through the two opposite sides of the connecting member 234 . The connecting member 234 and the corresponding side support member 281 are rotatably connected through the cooperation of the second arc rail and the second arc groove. The second arc rail is provided between the connecting member 234 and the side support member 281 . On the one hand, the second arc groove is provided on the other of the connecting member 234 and the side support member 281; in this embodiment, second arc rails 2347 are respectively provided at the opposite ends of the connecting member 234. The axis center line of the arc rail 2347 is parallel to the axial direction of the first rotating shaft 253, and the two second arc rails 2347 are coaxial center lines; the opposite ends of the side support 281 are respectively provided with second arc grooves 2812 , the two second arc rails 2347 are rotatably accommodated in the two second arc grooves 2812 respectively. In other embodiments, the two opposite ends of the side support member 281 are respectively provided with a second arc rail, and the two opposite ends of the connecting member 234 are respectively provided with a second arc groove. The two second arc rails can respectively Rotatingly accommodated in two second arc grooves. The back side of the connecting piece 234 is provided with a plurality of clamping posts and positioning holes. The connecting piece 234 is fixedly connected to the frame 21 through the plurality of clamping posts and positioning holes.

As shown in Figures 5-11 and 14-15, the rotating shaft mounting member 251 includes a mounting block 2511 and two push rods 2513 located at opposite ends of the installation block 2511. The two push rods 2513 are located on the mounting block 2511. On the same side, the end of each push rod 2513 away from the mounting block 2511 is provided with a first push cam 2510 . The opposite ends of the side of the mounting block 2511 away from the first resisting cam 2510 are respectively provided with resisting holes 2514. The two resisting holes 2514 are used to accommodate the ends of a pair of first rotating shafts 253. The pair of first rotating shafts 253 The ends are respectively inserted into the two resisting holes 2514 of the rotating shaft mounting member 251 and can push the rotating shaft mounting member 251 to move along the axial direction of the first rotating shaft 253 . Preferably, the two pushing holes 2514 extend along the axis directions of the two pushing rods 2513 respectively. The side of the mounting block 2511 away from the first resisting cam 2510 is provided with two guide holes 2515 between the two resisting holes 2514 . In this embodiment, the axis lines of the two push holes 2514 and the axis lines of the two guide holes 2515 are located on the same plane. In some embodiments, the axes of the two abutment holes 2514 are coplanar, the axes of the two guide holes 2515 are coplanar, and the plane where the axes of the two abutment holes 2514 are located is parallel to the two guide holes. The plane where the axis of 2515 is located. The mounting block 2511 and the two push rods 2513 form a guide slide 2516, and the guide rail 2314 of the first base 231 is slidably inserted into the guide slide 2516; preferably, the guide slide 2516 is parallel to the first A rotating shaft 253 extends axially. A stop surface 2517 is provided at an end of the push rod 2513 away from the mounting block 2511.

The torsion component 25 also includes a first torsion member 252 and a first resistance member 254. The first torsion member 252 is rotationally connected to the rotating shaft, that is, the first torsion member 252 is rotationally connected to the first rotating shaft 253. The first resistance member 254 The first resisting member 254 is slidably sleeved on the rotating shaft along the axis direction of the rotating shaft. The first resisting member 254 is located between the first torsion member 252 and the first elastic member 241. The first elastic member 241 elastically resists the first resisting member 254 resisting the first torsion member 252; when the first torsion member 252 rotates around the corresponding rotation axis, the first torsion member 252 pushes the first resisting member 254 to move along the axial direction of the rotation axis to squeeze the first elastic member 241, The frictional torque between the first torsion member 252 and the first resisting member 254 and the frictional torsion between the first cam 2330 and the first resisting cam 2510 are used to limit the first torsion member 252 and the rotating member 233 . In this embodiment, the torsion component 25 includes a pair of first torsion members 252. The pair of first torsion members 252 are respectively rotatably sleeved on a pair of first rotation shafts 253. The first resisting member 254 is along the first rotation shaft 253. is axially sleeved on a pair of first rotating shafts 253, and the first resisting member 254 is located between the two first elastic members 241 and the two first torsion members 252; when the two torsion members 252 respectively surround the two first torsion members 252, When a rotating shaft 253 rotates, the two first torsion members 252 jointly push the first resisting member 254 to move along the axial direction of the first rotating shaft 253 to squeeze the two first elastic members 241. The two first torsion members 252 The friction torque between the first resisting member 254 and the first cam 2330 of the two rotating members 233 and the corresponding first resisting cam 2510 respectively limits the first torsion member 252 and the rotating member 233 of rotation.

The first torsion member 252 includes a first rotating part 2520 rotatably connected to the first rotating shaft 253, a second resisting cam 2523 provided on the first rotating part 2520, and a first connecting part 2525 connected to the first rotating part 2520. , the second resisting cam 2523 is rotatably sleeved on the corresponding first rotating shaft 253; the first resisting member 254 includes two second cams 2540 slidingly sleeved on a pair of first rotating shafts 253, a pair of first rotating shafts 253. 253 is passed through the second resisting cam 2523 of the pair of first torsion members 252 and the two second cams 2540 of the first resisting member 254. The two second resisting cams 2523 are respectively connected with the two second cams 2540. Rotatingly supported. Specifically, the first rotating part 2520 is provided with a first shaft hole 2522 along the axial direction of the first rotating shaft 253, and the first rotating shaft 253 passes through the first shaft hole 2522; the first connecting part 2525 is away from the first rotating part 2520. One end is slidably connected to the connecting member 234 and the side support member 281; the second resisting cam 2523 is provided at one end of the first rotating part 2520 facing the first resisting member 254, and the axis line of the second resisting cam 2523 is in line with the first resisting member 254. The axis centers of the first shaft holes 2522 are collinear, and the second pushing cam 2523 and the second cam 2540 cooperate with each other to push. The first elastic member 241 is provided in a compressed state between the first resisting member 254 and the corresponding rotating shaft mounting member 251. The first elastic member 241 provides a mutual resistance between the first resisting member 254 and the first torsion member 252. The elastic force and the elastic force between the rotating shaft mounting member 251 and the corresponding first base 231 resist each other.

The first rotating part 2520 is a first rotating cylinder 2521 sleeved on the first rotating shaft 253. The second resisting cam 2523 is provided at the end of the first rotating cylinder 2521 facing the first resisting member 254. The second resisting cam The axis line of 2523 is collinear with the axis line of the first rotating cylinder 2521; the first resisting member 254 also includes two first resisting cylinders 2541 respectively sleeved on the two first rotating shafts 253 and connected to the two first resisting cylinders 2541. The first connecting portion 2546 between the first resisting tube 2541 and the second cam 2540 is provided at the end of the first resisting tube 2541 facing the first torsion member 252. The axis lines of the holding cylinder 2541 are collinear. Specifically, the second resisting cam 2523 includes a concave and convex surface provided on one end of the first rotating barrel 2521 facing the first resisting member 254. The concave and convex surface includes a first protruding portion 2524 and a first recessed portion 2526. The outlet portion 2524 and the first recessed portion 2526 are arranged at intervals along the circumferential direction of the first rotating barrel 2521. The number of the first protruding parts 2524 and the number of the first recessed parts 2526 can be set as needed. For example, the second resisting cam 2523 can include a first protruding part 2524, a first recessed part 2526, two first recessed parts 2526 and two first recessed parts 2526. The protruding part 2524 and the two first recessed parts 2526, the three first protruding parts 2524 and the three first recessed parts 2526, or the four first protruding parts 2524 and the four first recessed parts 2526, etc. In this embodiment, the second resisting cam 2523 includes three first protruding portions 2524 and three first recessed portions 2526 arranged at intervals along the circumferential direction of the first rotating barrel 2521 . A second cam 2540 is provided at one end of each first resisting tube 2541 facing the first torsion member 252 , that is, the second cam 2540 is provided at an end of the first resisting tube 2541 away from the first elastic member 241 . The second cam 2540 includes a concave and convex surface provided on one end of the first resisting tube 2541 facing the first torsion member 252 . The concave and convex surface includes a third protruding portion 2543 and a third recessed portion 2545 . The three recessed portions 2545 are arranged at intervals along the circumferential direction of the first resisting tube 2541. The number of the third protruding portions 2543 and the number of the third recessed portions 2545 can be set as needed. For example, the second cam 2540 can include a third protruding portion 2543, a third recessed portion 2545, and two third protrusions. Part 2543 and two third depressions 2545, three third protruding parts 2543 and three third recessed parts 2545, or four third protruding parts 2543 and four third recessed parts 2545, etc. In this embodiment, the second cam 2540 includes three third protruding portions 2543 and three third recessed portions 2545 arranged at intervals along the circumferential direction of the first resisting tube 2541 .

The second shaft hole 2562 of the first resisting cylinder 2541 is a through hole that passes through the second cam 2540. The first connecting part 2546 is provided with first guide sliding holes 2548 spaced apart from each other. The first guide sliding holes 2548 are parallel to the second Shaft hole 2562. In this embodiment, the axis centers of the two second shaft holes 2562 and the axis centers of the two first guide sliding holes 2548 are located on the same plane. In some embodiments, the axis lines of the two second shaft holes 2562 are coplanar, the axis lines of the two first guide sliding holes 2548 are coplanar, and the plane where the axis lines of the two first guide sliding holes 2548 are located is Parallel to the plane where the axis center lines of the two second shaft holes 2562 are located. Preferably, the two opposite end surfaces of the first resisting member 254 form arcuate surfaces to facilitate folding or unfolding of the rotating shaft device 22 .

The first torsion member 252 and the corresponding connecting member 234 are slidingly connected through the cooperation of the guide slide groove and the guide slide rail. The guide slide groove is provided in one of the connecting member 234 and the first torsion member 252 . The rail is provided on the other of the connecting member 234 and the first torsion member 252 . In this embodiment, the connecting rod 2340 of the connecting member 234 is provided with a first guide slide 2346 along the axial direction perpendicular to the first rotating shaft 253 , and the first connecting portion 2525 of the first torsion member 252 is provided with a first guide groove 2346 on opposite sides. A guide slide rail 2527, the first guide slide rail 2527 is slidably inserted into the corresponding first guide slide groove 2346 of the connector 234. Specifically, the first connecting portion 2525 includes two parallel and spaced extension bars. Each extension bar extends in an axial direction perpendicular to the first rotation axis 253 . A first guide is provided on a side of each extension bar away from the other extension bar. Slide 2527. A second adjustment rod 2528 is provided on the side of one of the extension bars away from the first guide slide rail 2527. The axis line of the second adjustment rod 2528 is parallel to the axis center line of the first rotating shaft 253. The back side of the side support member 281 is provided with a second adjustment rod 2528. There is a second adjustment slot corresponding to the second adjustment lever 2528, and the second adjustment lever 2528 is rotatably inserted into the corresponding second adjustment slot; when the rotating member 233 rotates relative to the first base 231, the second adjustment lever 2528 slides along the corresponding second adjustment groove.

The first rotating shaft 253 includes a first shaft 2531, a second shaft 2533 and a third shaft 2535 connected in sequence. The first shaft 2531, the second shaft 2533 and the third shaft 2535 have a coaxial center line. The outer diameter of the shaft 2531 and the third shaft 2535 are both smaller than the outer diameter of the second shaft 2533. The outer diameter of the third shaft 2535 is smaller than the inner diameter of the abutment hole 2514 of the rotating shaft mounting member 251. The second shaft The outer diameter of the rod 2533 is larger than the inner diameter of the top hole 2514. The axial length of the first shaft 2531 is greater than the axial length of the second shaft 2533, and the axial length of the second axis 2533 is greater than the axial length of the third shaft 2535. The outer diameter of the second shaft 2533 is slightly smaller than or equal to the inner diameter of the second elastic member 243, which enables the second elastic member 243 to be stably sleeved on the second shaft 2533 and prevents the second elastic member 243 from being inserted into the second shaft 2533. Shaft 2533 shakes.

The first elastic member 241 is clamped between the first resisting member 254 and one of the rotating shaft mounting members 251 , and the second elastic member 243 is clamped between the other rotating shaft mounting member 251 and a pair of first torsion members 252 . In this embodiment, the torsion component 25 further includes a second base 255 . The second base 255 is slidably sleeved on a pair of first rotating shafts 253 along the axial direction of the first rotating shaft 253 . The second base 255 resists a pair of first rotating shafts 253 . The side of the first torsion member 252 facing away from the first resisting member 254 , and the second elastic member 243 is clamped by the second base 255 and another rotating shaft mounting member 251 . The second base 255 includes a second base body 2551 and a first connecting plate 2553 provided at one end of the second base body 2551. A plurality of connecting holes 2552 are provided on the front of the second base body 2551. The first connecting plate 2553 includes a first top surface 2554 facing away from the second base body 2551. The first top surface 2554 is provided with two third shaft holes 2556 and two first mounting holes 2557. The two third shaft holes are 2556 is located at two opposite ends of the first top surface 2554. The two first mounting holes 2557 are located between the two third axis holes 2556. The axis line of the third axis hole 2556 is parallel to the axis center of the first mounting hole 2557. Wire. In this embodiment, the axis lines of the two third shaft holes 2556 and the axis lines of the two first mounting holes 2557 are located on the same plane. In some embodiments, the axis lines of the two third shaft holes 2556 are coplanar, the axis lines of the two first mounting holes 2557 are coplanar, and the planes where the axis lines of the two first mounting holes 2557 are parallel to The plane where the axis center lines of the two third axis holes 2556 are located.

The rotating shaft device 22 also includes a first linkage component 26. The first linkage component 26 includes a first gear 261 respectively provided on a pair of first torsion members 252 and a first driven gear set provided between the two first gears 261. 263, the first gears 261 on the pair of first torsion members 252 are respectively meshed with the first driven gear set 263, so that the pair of first torsion members 252 can rotate synchronously. In this embodiment, the two first torsion members 252 are respectively provided with first gears 261, and the first driven gear set 263 is disposed between the two first torsion members 252. Each first gear 261 is meshed with the first gear 261. Driven gear set 263. When one of the first torsion members 252 rotates around the corresponding first rotating shaft 253 , the first gear 261 on the one of the first torsion members 252 is driven to rotate around the first rotating shaft 253 and is driven by the first driven gear set 263 The other first torsion member 252 rotates synchronously around the corresponding first rotating shaft 253 . The first linkage component 26 of the rotating shaft device 22 can realize the synchronous folding or synchronous flattening of the two first torsion parts 252 of the torsion component 25, and can realize the synchronous folding or synchronous flattening of the two pairs of rotating parts 233 of the rotating component 23, and can realize The two side supports 281 of the support assembly 28 are folded or flattened synchronously to realize the synchronous folding or flattening of the two frames 21 .

In some embodiments, first gears 261 are respectively provided on the outer peripheral walls of the first rotating barrels 2521 of the pair of first torsion members 252, and a plurality of first driven gear sets 263 are between the two first rotating barrels 2521. The two first gears 261 are respectively meshed with the corresponding first driven gear set 263, so that the pair of first torsion members 252 can rotate synchronously.

As shown in Figures 14 and 15, a first gear 261 is provided on the outer peripheral wall of the first rotating barrel 2521 away from the first connecting portion 2525. The axis line of the first gear 261 is collinear with the axis line of the first rotating barrel 2521. ; The rotation angle range of the teeth of the first gear 261 arranged along the circumferential direction of the first rotating barrel 2521 is greater than or equal to 90 degrees and less than or equal to 180 degrees, that is, the first rotating barrel 2521 is greater than one quarter and less than one half. A first gear 261 is provided on the outer peripheral wall. The first driven gear set 263 includes two first driven gears 2630 that mesh with each other and first connecting shafts 2631 respectively passing through the two first driven gears 2630. Each first driven gear 2630 is connected to a corresponding The first connecting shaft 2631 has a coaxial center line, and the first gears 261 on the two first torsion members 252 are respectively meshed with the two first driven gears 2630, so that the pair of first torsion members 252 can rotate synchronously. The first driven gear 2630 includes a sleeve 2632 sleeved on the corresponding first connecting shaft 2631. The teeth of the first driven gear 2630 are arranged in a circle on the outer peripheral wall of the sleeve 2632 along the circumferential direction of the sleeve 2632. The first connecting shaft 2631 includes a connecting section 2631a connected to the first driven gear 2630, a guide sliding section 2631b located at one end of the connecting section 2631a, and a connecting section 2631c located at the opposite end of the connecting section 2631a. The guiding section 2631b and The connecting section 2631c extends from two opposite ends of the first driven gear 2630.

In some embodiments, the first driven gear set 263 can be omitted, that is, the first gears 261 on the outer peripheral walls of the two first torsion members 252 directly mesh with each other, so that the overall width of the rotating shaft device 22 is reduced, thereby Reducing the internal space occupied by the rotating shaft device 22 of the folding case 20 is not only beneficial to the layout of other components such as the motherboard or battery, but also facilitates miniaturization development.

The first elastic member 241 and the second elastic member 243 of the elastic component 24 can be sleeved on the first rotating shaft 253 respectively. The first elastic member 241 is used to provide elasticity against the first resisting member 254 and the corresponding rotating shaft mounting member 251 The elastic force causes the first resisting member 254 to press against a pair of first torsion members 252, and the rotating shaft mounting member 251 presses against a corresponding pair of rotating members 233; the second elastic member 243 is used to provide elasticity to push the corresponding rotating shaft installation. The member 251 resists the elastic force of the corresponding pair of rotating members 233; that is, the second elastic member 243 is clamped in a pre-tensioned state between the second base 255 and the corresponding rotating shaft mounting member 251, that is, the second elastic member The opposite ends of 243 are used to elastically resist the second base 255 and the rotating shaft mounting member 251 respectively. The second elastic member 243 has pre-elastic force. In this embodiment, the elastic component 24 includes two second elastic members 243. One second elastic member 243 is respectively sleeved on a pair of first rotating shafts 253. The opposite ends of each second elastic member 243 are elastically pressed against each other. The second base 255 and the rotating shaft mounting member 251. The second elastic member 243 and the first elastic member 241 may be the same or different. In this embodiment, the first elastic member 241 and the second elastic member 243 are the same spring, that is, the first elastic member 241 and the second elastic member 243 Have the same pre-elasticity.

As shown in FIGS. 4 and 5 , the rotating shaft device 22 also includes a back cover 29 , and the first base 231 and the second base 255 are connected to the back cover 29 . specific The back cover 29 is a strip frame. The back cover 29 has a receiving groove 290. The first base 231 and the second base 255 are respectively received in the receiving groove 290 and the first base 231 and the second base 255 are fixed. Connected to back cover 29. Preferably, the back cover 29 is provided with a plurality of mounting parts (not shown in the figure) on the inner surface of the receiving groove 290, and the first base 231 and the second base 255 are respectively connected to the corresponding mounting parts. The connection between the first base 231 and the mounting part and the connection between the second base 255 and the mounting part may be through, but are not limited to, screwing, snapping or gluing.

Please refer to Figures 26 to 35 together. When assembling the rotating shaft device 22, the first gears 261 of the pair of first torsion members 252 are respectively engaged with the two first driven gears 2630 of the first driven gear set 263, so that The two second resisting cams 2523 and the connecting section 2631c of the first driven gear set 263 are on the same side; the first resisting member 254 is sleeved on the connecting section 2631c of the first driven gear set 263, that is, the two The connecting section 2631c is inserted into the two first guide sliding holes 2548 of the first resisting member 254 respectively until the two second cams 2540 mesh with the second resisting cams 2523 of the two first torsion members 252 respectively; The second base 255 is sleeved on the guide section 2631b of the first driven gear set 263, that is, the two guide sections 2631b are respectively inserted into the two first mounting holes 2557 of the second base 255; connect the two first rotating shafts The first shaft 2531 of 253 is inserted into the two third shaft holes 2556 of the second base 255, the first shaft holes 2522 of the two first torsion members 252 and the first resistor respectively from the side close to the second base 255. The two second shaft holes 2562 of the holding member 254 until the second shaft 2533 of each first rotating shaft 253 abuts the second base 255; a pair of first elastic members 241 are respectively sleeved on the pair of first rotating shafts. 253, a pair of second elastic members 243 are respectively sleeved on the second shafts 2533 of a pair of first rotating shafts 253; two rotating shaft mounting pieces 251 are respectively sleeved on a pair of first rotating shafts 253 At the opposite ends, specifically, insert the first shafts 2531 of the pair of first rotating shafts 253 into the two resisting holes 2514 of one of the rotating shaft mounting parts 251, and insert the third shafts 2535 of the pair of first rotating shafts 253 into the other. Two abutment holes 2514 of a rotating shaft mounting member 251; assemble the rotating assembly 23. Specifically, the first rotating parts 2333 of a pair of rotating members 233 are respectively rotatably installed on the two first circles of the first base 231. In the arc groove 2312, the side surface of each rotating member 233 provided with the first anti-slip portion 2331 is in contact with the contact surface 2316 of the first base 231, and the first cam 2330 of the rotating member 233 is accommodated in the corresponding guide. In the slot 2315; place the two first bases 231 at the opposite ends of the torsion assembly 25, and insert the guide rails 2314 of the two first bases 231 into the guide grooves 2516 of the two rotating shaft mounting parts 251 respectively. Make the two first resisting cams 2510 of each rotating shaft installation member 251 rotatably resist the first cams 2330 of the two corresponding rotating members 233; place the two connecting members 234 on two opposite sides of the torsion assembly 25 respectively. side, insert the first guide slide rails 2527 of the two first torsion parts 252 into the first guide slide grooves 2346 of the two connecting parts 234 respectively; connect the two rotating parts 233 on each first base 231 Rotatingly connected to the two connecting members 234 respectively. Specifically, the lug 2336 of each rotating member 233 is placed in the adapter groove 2343 of the corresponding connecting member 234, so that the first connecting hole 2334 of the rotating member 233 is aligned. For the corresponding second connecting hole 2345, the connecting shaft 2342 is inserted into the first connecting hole 2334 and the second connecting hole 2345, so that the end of the rotating member 233 away from the first base 231 rotates with the corresponding connecting member 233. ground connection; assemble the support component 28 to the front of the rotating component 23 and the torsion component 25. Specifically, connect the middle support 280 to the front of the two first bases 231, and place the two side supports 281 respectively on On the front side of the two connecting members 234, the two second arc rails 2347 at the opposite ends of each connecting member 234 are rotatably inserted into the two second arc grooves 2812 at the opposite ends of the corresponding side support member 281. , and the first adjusting rod 2337 of each rotating member 233 is inserted into the first adjusting groove of the corresponding side support member 281, and the second adjusting rod 2528 of each first torsion member 252 is inserted into the corresponding side support member 281 in the second adjustment groove; and then the two first bases 231 and the second base 255 are fixedly connected to the back cover 29 respectively. Specifically, a plurality of fasteners pass through multiple holes of each first base 231. A connection hole 2318 is locked to the back cover 29, and a plurality of fasteners pass through a plurality of connection holes 2552 of the second base 255 to be locked to the back cover 29. At this time, the opposite ends of each first elastic member 241 elastically resist one of the rotating shaft mounting parts 251 and the first resisting part 254 respectively. The two first resisting cams 2510 of the one rotating shaft mounting part 251 are respectively connected with The first cams 2330 of the two corresponding rotating members 233 cooperate and push against each other, and the ends of the two rotating members 233 away from the first elastic member 241 push against each other and the corresponding first base 231. At the same time, the first The two second protrusions of the resisting member 254 The wheel 2540 cooperates with the second resisting cams 2523 of the pair of first torsion members 252 and resists each other; the opposite ends of each second elastic member 243 elastically resist the other rotating shaft mounting member 251 and the second base 255 respectively. , the two first pushing cams 2510 of the other rotating shaft mounting member 251 respectively cooperate with the first cams 2330 of the two corresponding rotating members 233 and push against each other, and the other rotating shaft mounting member 251 pushes against the corresponding two first cams 2330 . three rotating parts 233, so that the side of each rotating part 233 facing away from the first cam 2330 fits the corresponding contact surface 2316; if the pre-elastic force of the first elastic part 241 and the second elastic part 243 is both F, then the A resisting member 254 and each rotating shaft mounting member 251 are subject to a pre-elastic force of 2F.

When the connecting member 234 drives the rotating member 233 to rotate relative to the first base 231, and at the same time, the connecting member 234 drives the first torsion member 252 to rotate relative to the first base 231, the two first torsion members 252 pass through the first linkage component 26 Realize synchronous folding or synchronous unfolding, so that the two side supports 281 synchronously fold or unfold each other synchronously, thereby realizing the folding or unfolding of the rotating shaft device 22 . During the folding or unfolding process of the rotating shaft device 22, since the two opposite ends of the first elastic member 241 are respectively resisted by one of the rotating shaft mounting parts 251 and the first resisting member 254, the two opposite ends of the second elastic member 243 are respectively Being resisted by the second base 255 and another rotating shaft mounting member 251, when the two first torsion members 252 respectively rotate synchronously around the corresponding first rotating shaft 253, the first torsion member 252 rotates through the second resisting cam 2523. The second cam 2540 pushes against the first resisting member 254, causing the first resisting member 254 to squeeze the first elastic member 241; at the same time, the two rotating members 233 on each first base 231 are respectively relative to the first The base 231 rotates synchronously, causing the first cam 2330 of each rotating member 233 to rotationally push the first resisting cam 2510 of the corresponding rotating shaft mounting member 251, so that the two rotating shaft mounting members 251 respectively squeeze the first elastic member 241. and the second elastic member 243. The elastic force of the first elastic member 241 simultaneously pushes the first resisting member 254 and one of the rotating shaft mounting members 251 so that the second cam 2540 of the first resisting member 254 and the corresponding second resisting cam 2523 resist each other. Engagement, the first resisting cam 2510 of one of the rotating shaft mounting parts 251 and the corresponding first cam 2330 engage against each other, and the one of the rotating shaft mounting parts 251 pushes against the corresponding two rotating parts 233 and the corresponding first positioning parts. The seat 231 closely abuts, and the sides of the two first torsion members 252 facing away from the first resisting member 254 closely abut the second base 255; the elastic force of the second elastic member 243 abuts the other rotating shaft mounting member 251, The first resisting cam 2510 of the other rotating shaft mounting member 251 and the corresponding first cam 2330 are engaged against each other. The other rotating shaft mounting member 251 pushes the corresponding two rotating members 233 and the corresponding first positioning members 233 . Seat 231 is close to the top. That is, there is frictional torque between the first cam 2330 on one side of each rotating member 233 and the corresponding first resisting cam 2510, and there is frictional resistance between the opposite side of the rotating member 233 and the corresponding abutment surface 2316. There is friction torque between the second cam 2540 of the first resisting member 254 and the corresponding second resisting cam 2523 of the first torsion member 252, and one end of each first torsion member 252 away from the second resisting cam 2523 is connected to There is friction resistance between the second bases 255 . When the first torsion member 252 rotates around the corresponding first rotating shaft 253, the friction torque between the second resisting cam 2523 and the second cam 2540, the first cam 2330 of each rotating shaft mounting member 251 and the corresponding first resisting member The frictional torque between the top cams 2510, the frictional resistance between each shaft mounting member 251 and the corresponding first base 231, the end of each first torsion member 252 away from the second top cam 2523 and the second base The friction resistance between 255 makes the rotating shaft device 22 have a better hovering effect.

As shown in Figures 4-5 and 16-26, when the rotating shaft device 22 is bent from the flat state, one of the connecting parts 234 is bent toward the other connecting part 234 relative to the first base 231, One of the connecting members 234 drives the first arc rail 2332 of the rotating member 233 to rotate in the first arc groove 2312 of the first base 231, and drives the corresponding first torsion member 252 to rotate around the corresponding first rotating shaft 253. , so that the two first torsion members 252 come closer to each other, the first torsion member 252 pushes the first resisting member 254 to move along the axial direction of the first rotating shaft 253 and squeezes the first elastic member 241; at the same time, the first torsion member 252 The first gear 261 on 252 rotates around the first rotating shaft 253 to drive the two first driven gears 2630 of the first driven gear set 263 to rotate, and the first driven gear set 263 drives another first torsion member 252 on The first gear 261 revolves around the corresponding first rotation axis 253, thereby realizing the synchronous folding of the two first torsion members 252; at the same time, the two first bases 231 The rotating members 233 rotate synchronously and move closer to each other, thereby driving the two side support members 281 to move closer to each other synchronously, until the front surfaces of the two side support members 281 and the front surface of the first base 231 form a water drop shape in cross-section. In the process of the two rotating parts 233 on each first base 231 approaching each other, the rotating part 233 on one of the first bases 231 pushes the corresponding rotating shaft mounting part 251 to move along the axial direction of the first rotating shaft 253 When the first elastic member 241 is squeezed, the rotating member 233 on the other first base 231 pushes against the opposing shaft mounting member 251 and moves along the axial direction of the first rotating shaft 253 to squeeze the second elastic member 243 .

When the side support 281 is folded relative to the first base 231 , the axial force between the second cam 2540 and the second resisting cam 2523 on each first rotating shaft 253 is equal to the two first elastic members 241 The sum of the elastic forces, the axial force between the first resisting cam 2510 of the rotating shaft mounting member 251 and the corresponding first cam 2330 that resists the first elastic member 241 is equal to the sum of the elastic forces of the two first elastic members 241 ; The axial force between the first resisting cam 2510 of the rotating shaft mounting member 251 and the corresponding first cam 2330 that resists the second elastic member 243 is equal to the sum of the elastic forces of the two first elastic members 241. The frictional torque between the second resisting cam 2523 and the second cam 2540, the frictional torque between the first cam 2330 of each rotating shaft mounting member 251 and the corresponding first resisting cam 2510, the frictional torque between each rotating shaft mounting member 251 and the corresponding first resisting cam 2510. The friction resistance between the corresponding first bases 231 and the friction resistance between the end of each first torsion member 252 away from the second resisting cam 2523 and the second base 255 limit the position of the two side supports 281 A specific angle between 70 degrees and 130 degrees.

In other usage modes, the two connecting members 234 can be rotated together in opposite directions. Each connecting member 234 passes through the first arc track 2332 of the corresponding rotating member 233 and the first arc track of the corresponding first base 231 . The arc groove 2312 rotates relatively, so that the two connecting parts 234 rotate synchronously relative to the first base 231 and move closer to each other, and the two rotating shaft mounting parts 251 respectively move along the axial direction of the first rotating shaft 253 to squeeze the first elastic member 241 and the second elastic member 243 push against each other; the two connecting members 234 drive the two first torsion members 252 to move closer to each other through the first linkage assembly 26 synchronously rotating around the corresponding first rotating shaft 253, and the first torsion member 252 pushes against the second elastic member 243. A resisting member 254 moves along the axial direction of the first rotating shaft 253 to squeeze the first elastic member 241; causing the two side supporting members 281 to move closer to each other synchronously until the front surfaces of the two side supporting members 281 are in contact with the first base. The front of 231 is formed into a drop-shaped cross section.

When the rotating shaft device 22 is unfolded from the fully bent state, one of the connecting parts 234 is unfolded away from the other connecting part 234 relative to the first base 231, and one of the connecting parts 234 drives the first arc of the rotating part 233. The rail 2332 rotates in the first arc groove 2312 of the first base 231. The rotating members 233 at opposite ends of the connecting member 234 respectively push the two rotating shaft mounting members 251 to move along the axial direction of the first rotating shaft 253 and squeeze respectively. The first elastic member 241 and the second elastic member 243, one of the connecting members 234 drives the corresponding first torsion member 252 to rotate around the first rotation axis 253, so that the two first torsion members 252 are away from each other and the first torsion member 252 pushes the first resisting member 254 to move along the axial direction of the first rotating shaft 253 to squeeze the first elastic member 241; at the same time, the first gear 261 on the first torsion member 252 rotates around the first rotating shaft 253 to drive the first The two first driven gears 2630 of the driven gear set 263 rotate, and the first driven gear set 263 drives the first gear 261 on the other first torsion member 252 to rotate around the corresponding first rotating shaft 253, thereby achieving two Synchronous expansion of the first torsion member 252; the two rotating members 233 of the rotating assembly 23 rotate synchronously relative to the first base 231 and expand each other to drive the two side supports 281 to synchronously expand each other until the two side supports The member 281 and the first base 231 are in a flat shape.

When the side support 281 is flattened relative to the first base 231, the axial force between the second cam 2540 and the second resisting cam 2523 on each first rotating shaft 253 is equal to the two first elastic members. The sum of the elastic forces of 241 and the axial force between the first resisting cam 2510 and the corresponding first cam 2330 of the rotating shaft mounting member 251 that the first elastic member 241 abuts is equal to the sum of the elastic forces of the two first elastic members 241 And; the axial force between the first resisting cam 2510 of the rotating shaft mounting member 251 and the corresponding first cam 2330 that resists the second elastic member 243 is equal to the sum of the elastic forces of the two first elastic members 241. The frictional torque between the second resisting cam 2523 and the second cam 2540, the frictional torque between the first cam 2330 of each rotating shaft mounting member 251 and the corresponding first resisting cam 2510, the frictional torque between each rotating shaft mounting member 251 and the corresponding first resisting cam 2510. corresponding The friction resistance between the first base 231 and the friction resistance between the end of each first torsion member 252 away from the second resisting cam 2523 and the second base 255 limit the two side supports 281 at 130 A specific angle between degrees and 70 degrees.

In other usage modes, the two connecting members 234 can be rotated together in opposite directions. Each connecting member 234 passes through the first arc track 2332 of the corresponding rotating member 233 and the first arc track of the corresponding first base 231 . The arc groove 2312 rotates relatively, so that the two connecting parts 234 rotate synchronously relative to the first base 231 and move closer to each other, and the two rotating shaft mounting parts 251 respectively move along the axial direction of the first rotating shaft 253 to squeeze the first elastic member 241 and the second elastic member 243 push against each other; the two connecting members 234 drive the two first torsion members 252 to move closer to each other through the first linkage assembly 26 synchronously rotating around the corresponding first rotating shaft 253, and the first torsion member 252 pushes against the second elastic member 243. A resisting member 254 moves along the axial direction of the first rotating shaft 253 to squeeze the first elastic member 241; causing the two side supporting members 281 to move away from each other synchronously until the front surfaces of the two side supporting members 281 are in contact with the first base. The front of 231 is flush.

Please refer to Figures 1 to 5 together. The frame 21 includes a front 211, a back 213, two opposite side surfaces 214 and two end surfaces 215. The rotating shaft device 22 is connected between the two adjacent end surfaces 215 of the two frames 21. The bendable area 31 of the flexible screen 30 is attached to the front surface of the rotating shaft device 22 , and the non-bendable area 33 of the flexible screen 30 is connected to the front surface 211 of the frame 21 . Each frame 21 is provided with a receiving groove 216 on the end surface 215 facing the rotating shaft device 22 . The receiving groove 216 penetrates the front 211 of the frame 21 , and the opposite ends of the receiving groove 216 extend to the two opposite side surfaces 214 of the frame 21 . Opposite sides of the rotating shaft device 22 are respectively received in the receiving grooves 216 of the two frames 21 , and each connecting piece 234 is fixedly connected to the corresponding frame 21 . The back 213 of the frame 21 is provided with a plurality of receiving spaces (not shown in the figure), and the receiving spaces are used for installing circuit boards, batteries and other electronic devices.

Place the installed rotating shaft device 22 between the two frames 21 , place the connecting pieces 234 on opposite sides of the back cover 29 into the receiving grooves 216 of the two frames 21 respectively, and connect the two connecting pieces 234 Fixedly connected to the two frames 21 respectively. At this time, the front surfaces 211 of the two frames 21 and the front surfaces of the two side supports 281 are coplanar. The back of the flexible screen 30 is connected to the front 211 of the two frames 21 and the front of the rotating shaft device 22. Specifically, the bendable area 31 faces the rotating shaft device 22, and the two non-bending areas 33 face the two frames respectively. 21 front. When the flexible screen 30 is in a flat state, the front of the middle support 280 is flush with the front of the two side supports 281, and the second cam 2540 and the second push cam 2523 are engaged with each other to push against each other. The first abutment cam 2510 of the mounting member 251 abuts the corresponding first cam 2330 of the rotating member 234 , each rotating shaft mounting member 251 abuts the corresponding first base 231 , and each first torsion member 252 It is against the second base 255 to limit the two side supports 281 to maintain a flat state; and the connection between the components in the rotating shaft device 22 can be made more compact, thereby reducing the overall volume of the rotating shaft device 22 and reducing the occupation. The internal space of the casing 20 is conducive to the layout of other components such as the motherboard or battery, and is conducive to the miniaturization of the electronic device 100; secondly, because the front surface of the side support member 281 is coplanar with the front surface of the middle support member 280, the flexibility The screen 30 will not be impacted by the step difference when it is flattened, and the flexible screen 30 will not have bad problems such as colored dots or bright spots, ensuring the reliability of the flexible screen 30. At the same time, it also improves the touch feel of the flexible screen 30 and improves the user experience. .

Please refer to FIGS. 1-4 and 16-26 together. When bending the electronic device 100, a folding force is applied to at least one of the two frames 21 of the electronic device 100, so that the two frames 21 connected to the electronic device 100 are folded. The connecting member 234 rotates in the direction adjacent to each other relative to the first base 231, driving the two rotating members 233 to rotate relative to the first base 231 and move closer to each other. The two first torsion members 252 are synchronously folded through the first linkage component 26. , so that the two side supports 281 of the rotating shaft device 22 can be folded with each other, and the bendable area 31 of the flexible screen 30 can be bent along with the rotating shaft device 22 . Specifically, if a folding force is applied to one of the frames 21, the one of the frames 21 drives the corresponding rotating member 233 to rotate relative to the first base 231 toward the side closer to the flexible screen 30. At the same time, the connecting member 234 drives the The two first torsion members 252 fold each other synchronously, and the second resisting cams 2523 of the two first torsion members 252 respectively push the two second cams 2540 of the first resisting member 254 to drive the first resisting member 254 Squeeze the first elastic member 241; at the same time, the two rotating members 233 of each first base 231 are synchronized relative to the first base 231 Rotate and move closer to each other to drive the two side support members 281 to move closer to each other synchronously. The two rotating shaft mounting members 251 respectively squeeze the first elastic member 241 and the second elastic member 243 until the front surfaces of the two side support members 281 are in contact with each other. The front surface of the middle support member 280 is formed into a water drop shape in cross section; the bendable area 31 of the flexible screen 30 is bent with the rotating shaft device 22 until the front surfaces of the two non-bending areas 33 of the flexible screen 30 fit together and can be folded. The bending area 31 is bent into a drop shape, thereby realizing seamless folding of the electronic device 100 .

During the process of bending the electronic device 100, the friction torque between the second resisting cam 2523 and the second cam 2540 of the first torsion member 252 on each first rotating shaft 253 and the first resisting force of the rotating shaft mounting member 251 The friction torque between the cam 2510 and the corresponding first cam 2330 resists the rebound force of the flexible screen 30, so that the two side supports 281 are relatively positioned at a specific angle, and the two frames 21 can be limited to 70 A specific angle between degrees and 130 degrees. The bendable area 31 of the flexible screen 30 is bent into a water drop shape, which reduces the duty cycle of the bendable area 31 after bending, thereby reducing the overall thickness of the electronic device 100 .

In other folding methods of the electronic device 100 , a folding force can also be applied to the two frames 21 at the same time. The two frames 21 respectively drive the rotating member 233 to rotate relative to the first base 231 toward a side close to the flexible screen 30 . The side rotation drives the two first torsion members 252 to rotate around the corresponding first rotation axis 253 toward the side close to the flexible screen 30 and pass through the rotation axis device 22 to realize the folding of the electronic device 100 .

When the electronic device 100 needs to be flattened, one of the frames 21 is pulled outward, so that the two rotating members 233 connected to the two frames 21 rotate relative to the first base 231 and move away from each other. The torsion members 252 respectively rotate synchronously around the corresponding first rotating shafts 253 and move away from each other, so that the two side supports 281 of the rotating shaft device 22 unfold mutually, so that the bendable area 31 of the flexible screen 30 is flattened along with the rotating shaft device 22 . Specifically, if a flattening force is applied to one of the frames 21 , the one of the frames 21 drives the corresponding rotating member 233 to rotate relative to the first base 231 to the side away from the flexible screen 30 , and at the same time, the connecting member 234 The two first torsion members 252 are driven to flatten each other synchronously, and the second resisting cam 2523 of the first torsion member 252 pushes against the second cam 2540 of the first resisting member 254, so as to drive the first resisting member 254 to squeeze the second resisting member 254. An elastic member 241; at the same time, the two rotating parts 233 on the two first bases 231 of the rotating assembly 23 rotate synchronously relative to the first bases 231 and move away from each other, and the two rotating shaft mounting parts 251 respectively squeeze the first bases 231. The elastic member 241 and the second elastic member 243 drive the two side supports 281 to move away from each other synchronously until the front faces of the two side supports 281 and the front face of the middle support member 280 are coplanar; the flexible screen 30 can be bent The area 31 expands along with the rotating shaft device 22 until the bendable area 31 of the flexible screen 30 is completely flattened, thereby realizing the flattening of the electronic device 100 .

During the process of flattening the electronic device 100, the friction torque between the second resisting cam 2523 and the second resisting cam 2540 on each first rotating shaft 253 and the friction between the first cam 2330 and the first resisting cam 2510 The torsion resists the rebound force of the flexible screen 30 so that the two side supports 281 are relatively positioned at a specific angle, thereby limiting the two frames 21 to a specific angle between 70 degrees and 130 degrees.

In other folding methods of the electronic device 100, an outward pulling force can also be applied to the two frames 21 at the same time. The two frames 21 respectively drive the two rotating members 233 and one of each first base 231. The first torsion member 252 is rotated to a side away from the flexible screen 30 and passes through the rotating shaft device 22 to realize the unfolding of the electronic device 100 .

The rotating shaft device 22 of the electronic device 100 of the present invention realizes synchronous folding or unfolding through the rotating component 23 and the torsion component 25. Due to the frictional torsion between the first torsion member 252 and the first resisting member 254 and the rotating member 233 and the rotating shaft mounting member There is frictional torque between 251. When the electronic device 100 is not subject to external force, these frictional resistances can limit the first torsion member 252 and the rotating member 233 to remain motionless relative to the first base 231, so as to realize two sides. The hovering of the supporting member 281 makes the electronic device 100 have a hovering effect; secondly, there is friction resistance between the rotating member 233 and the first base 231 and friction resistance between the first torsion member 252 and the second base 255 , so that the hovering effect of the electronic device 100 is better; in addition, the two opposite ends of the first elastic member 241 elastically resist the first resisting member 254 and the rotating shaft mounting member 251 respectively, and the two opposite ends of the second elastic member 243 respectively The elasticity resists the second base 255 and the corresponding rotating shaft mounting member 251, so that the rotating shaft The structure of the device 22 is compact, and the volume of the rotating shaft device 22 is reduced, thereby reducing the internal space occupied by the rotating shaft device 22 of the folding housing 20, which is not only beneficial to the layout of other components such as the motherboard or battery, but also is conducive to the development of miniaturization; the rotating shaft device 22 has a simple structure, low manufacturing cost, high reliability of connections between components, and improved overall machine strength.

Please refer to Figures 26 to 31 together. The structure of the rotating shaft device 22a in the second embodiment of the present application is similar to the structure of the rotating shaft device 22 in the first embodiment. The difference is that the rotating shaft device 22a is in the rotating shaft device 22. On the basis of adding a pair of second torsion members and a second resistance member, specifically, the rotating shaft device 22a includes a rotating component 23, a torsion component 25a, an elastic component 24 and a supporting component 28. The rotating component 23 includes two first bases 231. A pair of rotating parts 233 and a pair of connecting parts 234 that are rotatably provided on opposite sides of each first base 231; the rotating shafts include two pairs of second rotating shafts 250, and the two pairs of second rotating shafts 250 are arranged along the rotating parts 233 and The first bases 231 are arranged in the direction of the rotation axis; the torsion component 25a includes a pair of first torsion members 252, a pair of second torsion members 256, a first resisting member 254 and a second resisting member 257; two The second rotating shaft 250 , a pair of first torsion members 252 , a pair of second torsion members 256 , a first resisting member 254 and a second resisting member 257 are located between the two first bases 231 . The ends of the rotating shaft 250 that are far away from each other are respectively connected to two rotating shaft mounting parts 251. A pair of first torsion members 252 are respectively rotatably sleeved on a pair of second rotating shafts 250. A pair of second torsion members 256 are respectively rotatably mounted. The first resisting member 254 is sleeved on the other pair of second rotating shafts 250 and slidably sleeved on one of the pair of second rotating shafts 250 along the axial direction of the second rotating shaft 250. The pair of first torsion members 252 are respectively connected with the first resisting member 250. The holding member 254 is rotatably abutted, the second resisting member 257 is slidably sleeved on another pair of second rotating shafts 250 along the axial direction of the second rotating shaft 250, and a pair of second torsion members 256 are respectively connected with the second resisting member. 257 can rotate against the top. The structures of the rotating component 23 , the elastic component 24 and the supporting component 28 of the rotating shaft device 22 a in the second embodiment are respectively the same as those in the first embodiment and will not be described here.

Each pair of second rotating shafts 250 is spaced parallel to each other. The second rotating shaft 250 includes a first rotating shaft section 2501, a second rotating shaft section 2503, and a third rotating shaft section 2505. The first rotating shaft section 2501, the second rotating shaft section 2503, and the third rotating shaft section 2505 Coaxial center line, the outer diameter of the first rotating shaft segment 2501 and the outer diameter of the third rotating shaft segment 2505 are both smaller than the outer diameter of the second rotating shaft segment 2503, and the outer diameter of the third rotating shaft segment 2505 is smaller than the top hole of the rotating shaft mounting member 251 2514, the outer diameter of the second rotating shaft section 2503 is larger than the inner diameter of the top hole 2514. The axial length of the first rotating shaft section 2501 is greater than the axial length of the second rotating shaft section 2503 . The outer diameter of the second rotating shaft section 2503 is slightly smaller than or equal to the inner diameter of the first elastic member 241, so that the first elastic member 241 sleeved on the second rotating shaft section 2503 will not shake; the outer diameter of the second rotating shaft section 2503 is slightly smaller than Or equal to the inner diameter of the second elastic member 243, so that the second elastic member 243 sleeved on the second rotating shaft section 2503 will not shake.

The two second cams 2540 of the first resisting member 254 are respectively sleeved on the pair of second rotating shafts 250 . The two second cams 2540 of the first resisting member 254 are respectively connected with the second cams 2540 of the pair of first torsion members 252 . The resisting cam 2523 resists rotationally; the second resisting member 257 includes two third cams 2570 respectively sleeved on another pair of second rotating shafts 250, and each second torsion member 256 includes a corresponding second resisting member 2570. The third resisting cam 2563 of the rotating shaft 250 and the two third cams 2570 of the second resisting member 257 are rotationally resisted by the third resisting cams 2563 of the pair of second torsion members 256 respectively. Specifically, the second torsion member 256 includes a second rotating part 2560 rotationally connected to the second rotating shaft 250 , a third resisting cam 2563 provided on the second rotating part 2560 , and a second rotating part 2560 connected to the second rotating part 2560 . In the connecting portion 2565, the third resisting cam 2563 is rotatably sleeved on the corresponding second rotating shaft 250; the second resisting member 257 includes two third cams 2570 that are slidably sleeved on a pair of second rotating shafts 250. The second rotating shaft 250 passes through the third resisting cams 2563 of the pair of second torsion members 256 and the two third cams 2570 of the second resisting member 257. The two third resisting cams 2563 are respectively connected with the two third resisting cams 2570. The cams 2570 rotatably resist each other. Specifically, the second rotating part 2560 is provided with a second shaft hole 2562 along the axial direction of the second rotating shaft 250 , and the second rotating shaft 250 passes through the second shaft hole 2562 ; the second connecting part 2565 is away from the second rotating part 2560 One end is slidably connected to the connecting member 234; the third resisting cam 2563 is provided at an end of the second rotating part 2560 facing the second resisting member 257, and the axis line of the third resisting cam 2563 is consistent with the axis of the second shaft hole 2562. The axis lines are collinear, The third pushing cam 2563 and the third cam 2570 cooperate with each other to push. The first elastic member 241 is provided in a compressed state between the first resisting member 254 and one of the rotating shaft mounting members 251. The first elastic member 241 provides a mutual resistance between the first resisting member 254 and the first torsion member 252. The elastic force and the elastic force between one of the rotating shaft mounting parts 251 and the corresponding first base 231 resist each other; the second elastic member 243 is provided in a compressed state between the second resisting member 257 and the second base 255. The second elastic member 243 provides the elastic force between the second resisting member 257 and the second torsion member 256 to resist each other, and the second resisting member 257 resists another rotating shaft mounting member 251 and the corresponding pair of rotating members 233 to resist each other. Top elasticity.

The second torsion member 256 is slidably connected to the corresponding connecting member 234 through the cooperation of the guide slide groove and the guide slide rail. The guide slide groove is provided in one of the connecting member 234 and the second torsion member 256 . The rail is provided on the other of the connecting member 234 and the second torsion member 256 . In this embodiment, the connecting member 234 is provided with a second guide slide groove 2348 along the axial direction perpendicular to the second rotating shaft 250 , and the second connecting portion 2565 of the second torsion member 256 is provided with second guide slide rails on opposite sides. 2567, the second guide slide rail 2567 is slidably inserted into the second guide slide groove 2348 of the corresponding connector 234. Specifically, the second connecting portion 2565 includes two parallel and spaced extension bars. Each extension bar extends in an axial direction perpendicular to the second rotation axis 250 . A second guide is provided on a side of each extension bar away from the other extension bar. Slide 2567.

The second rotating part 2560 is a second rotating cylinder 2561 sleeved on the second rotating shaft 250. The third resisting cam 2563 is provided at the end of the second rotating cylinder 2561 facing the second resisting member 257. The third resisting cam 2563 is The axis line of 2563 is collinear with the axis line of the second rotating cylinder 2561; the second resisting member 257 also includes two second resisting cylinders 2571 respectively sleeved on the two second rotating shafts 250 and connected to the two second resisting cylinders 2571. The second connecting portion 2576 between the second resisting tubes 2571 and the third cam 2570 are provided at the end of the second resisting tube 2571 facing the second torsion member 256. The axis lines of the holding cylinder 2571 are collinear. Specifically, the third resisting cam 2563 includes a concave and convex surface provided on one end of the second rotating barrel 2561 facing the second resisting member 257. The concave and convex surface includes a second protruding portion 2564 and a second recessed portion 2566. The outlet portion 2564 and the second recessed portion 2566 are arranged at intervals along the circumferential direction of the second rotating barrel 2561. The number of the second protruding portions 2564 and the number of the second recessed portions 2566 can be set as needed. For example, the third resisting cam 2563 can include a second protruding portion 2564, a second recessed portion 2566, two second protruding portions 2566, and two second recessed portions 2566. The protruding part 2564 and two second recessed parts 2566, three second protruding parts 2564 and three second recessed parts 2566, or four second protruding parts 2564 and four second recessed parts 2566, etc. In this embodiment, the third resisting cam 2563 includes three second protruding portions 2564 and three second recessed portions 2566 arranged at intervals along the circumferential direction of the second rotating barrel 2561 . A third cam 2570 is provided at one end of each second resisting tube 2571 facing the second torsion member 256 . That is, the third cam 2570 is provided at the end of the second resisting tube 2571 away from the second elastic member 243 . The third cam 2570 includes a concave and convex surface provided on one end of the second resisting tube 2571 facing the second torsion member 256. The concave and convex surface includes a fourth protruding portion 2573 and a fourth recessed portion 2575. The fourth protruding portion 2573 and the fourth recessed portion 2575. The four recessed portions 2575 are arranged at intervals along the circumferential direction of the second resisting tube 2571 . The number of the fourth protruding portions 2573 and the number of the fourth recessed portions 2575 can be set as needed. For example, the third cam 2570 can include a fourth protruding portion 2573, a fourth recessed portion 2575, and two fourth protrusions. 2573 and two fourth recessed parts 2575, three fourth protruding parts 2573 and three fourth recessed parts 2575, or four fourth protruding parts 2573 and four fourth recessed parts 2575, etc. In this embodiment, the third cam 2570 includes three fourth protruding portions 2573 and three fourth recessed portions 2575 arranged at intervals along the circumferential direction of the second resisting tube 2571 .

The fourth shaft hole 2572 of the second resisting cylinder 2571 is a through hole that passes through the third cam 2570. The second connecting part 2576 is provided with second guide sliding holes 2578 spaced apart from each other. The second guide sliding holes 2578 are parallel to the fourth Shaft hole 2572. In this embodiment, the axis lines of the two fourth shaft holes 2572 and the axis lines of the two second guide sliding holes 2578 are located on the same plane. In some embodiments, the axis lines of the two fourth shaft holes 2572 are coplanar, the axis lines of the two second guide sliding holes 2578 are coplanar, and the plane where the axis lines of the two second guide sliding holes 2578 are located is Parallel to the plane where the axis center lines of the two fourth axis holes 2572 are located. Preferably, the two opposite end surfaces of the second resisting member 257 form arcuate surfaces to facilitate folding or unfolding of the rotating shaft device.

The torsion assembly 25 also includes a third base 258. The third base 258 is connected between the two pairs of second rotating shafts 250. The axis lines of the two second rotating shafts 250 on the same side of the third base 258 are collinear, that is, The axis lines of the two second rotating shafts 250 on one side of the third base 258 are collinear, and the axis lines of the two second rotating shafts 250 on the other side of the third base 258 are collinear; a pair of first torsion members The side of 252 facing away from the first resisting member 254 abuts against the third base 258 , and the side of a pair of second torsion members 256 away from the second resisting member 257 abuts against the corresponding rotating shaft mounting member 251 . The third base 258 abuts the side of the pair of first torsion members 252 away from the first resisting member 254 , and the second elastic member 243 is clamped by the third base 258 and the second resisting member 257 . The third base 258 includes a third base body 2581 and a second connecting plate 2583 provided at one end of the third base body 2581. The third base body 2581 is provided with a connecting hole 2582 on the front. The second connecting plate 2583 includes a second top surface 2584 facing away from the third base 2581. The second top surface 2584 is provided with two fifth shaft holes 2586 and two second mounting holes 2587. The two fifth shaft holes are 2586 is located at two opposite ends of the second top surface 2584, and the two second mounting holes 2587 are located between the two fifth axis holes 2586. The axis line of the fifth axis hole 2586 is parallel to the axis center of the second mounting hole 2587. Wire. In this embodiment, the axis lines of the two fifth shaft holes 2586 and the axis lines of the two second mounting holes 2587 are located on the same plane. In some embodiments, the axis lines of the two fifth shaft holes 2586 are coplanar, the axis lines of the two second mounting holes 2587 are coplanar, and the planes where the axis lines of the two second mounting holes 2587 are parallel to The plane where the axis centers of the two fifth axis holes 2586 are located.

The rotating shaft device 22a also includes a second linkage component 26a. The second linkage component 26a includes a second gear 261a respectively provided on a pair of second torsion members 256 and a second driven gear set provided between the two second gears 261a. 263a, the second gear 261a of each second torsion member 256 is respectively engaged with the second driven gear set 263a, so that the pair of second torsion members 256 can rotate synchronously. In this embodiment, the two second torsion members 256 are respectively provided with second gears 261a, and the second driven gear set 263a is disposed between the two second torsion members 256. Each second gear 261a is respectively engaged with the second gear 261a. Driven gear set 263a. When one of the second torsion members 256 rotates around the corresponding second rotation axis 250, the second gear 261a on the one of the second torsion members 256 is driven to rotate around the second rotation axis 250, and is driven by the second driven gear set 263a. The other second torsion member 256 rotates synchronously around the corresponding second rotating shaft 250 . The second linkage component 26a of the rotating shaft device 22a can realize the synchronous folding or synchronous flattening of the two second torsion parts 256 of the torsion component, the synchronous folding or synchronous flattening of the two pairs of rotating parts 233 of the rotating component 23, and can realize support. The two side supports of the assembly are folded or flattened synchronously to realize the synchronous folding or flattening of the two shells.

Specifically, the second gear 261a is provided on the outer peripheral wall of the second rotating barrel 2561 away from the second connecting portion 2565. The axis line of the second gear 261a is collinear with the axis line of the second rotating barrel 2561; The rotation angle range of the teeth arranged along the circumferential direction of the second rotating barrel 2561 is greater than or equal to 90 degrees and less than or equal to 180 degrees. That is, the outer peripheral wall of the second rotating barrel 2561 is greater than one quarter and less than one half. Second gear 261a. The second driven gear set 263a includes two second driven gears meshing with each other and second connecting shafts 2731 respectively passing through the two second driven gears 2730. Each second driven gear is connected to a corresponding second driven gear. The connecting shaft 2731 has a coaxial center line, and the second gears 261a on the two second torsion members 256 are respectively meshed with the two second driven gears 2730, so that the pair of second torsion members 256 can rotate synchronously. The second driven gear 2730 includes a sleeve sleeved on the corresponding second connecting shaft 2731. The teeth of the second driven gear 2670 are arranged in a circle on the outer peripheral wall of the sleeve along the circumferential direction of the sleeve.

In some embodiments, second gears 261a are respectively provided on the outer peripheral walls of the second rotating barrels 2561 of the pair of second torsion members 256, and a plurality of second driven gear sets are provided between the two second rotating barrels 2561. 263a, the two second gears 261a are respectively meshed with the second driven gear set 263a, so that the pair of second torsion members 256 can rotate synchronously.

In some embodiments, the second driven gear set 263a can be omitted, that is, the second gears 261a on the outer peripheral walls of the two second torsion members 256 directly mesh with each other, so that the overall width of the rotating shaft device 22a is reduced, thereby Reducing the internal space occupied by the rotating shaft device 22a of the folding case is not only beneficial to the layout of other components such as the motherboard or battery, but also is conducive to miniaturization development.

Please refer to Figures 26 to 38 together. When assembling the rotating shaft device 22a, since the assembly method of the rotating shaft device 22a is similar to the assembly method of the rotating shaft device 22 in the first embodiment, here we only briefly introduce the assembly process of the rotating device 22a: Assemble the first linkage component 26, set the first resisting member 254 on the first connecting shaft 2631, so that the two second cams 2540 mesh with the second resisting cams 2523 of the two first torsion members 252 respectively; The third base 258 is sleeved on the end of the first connecting shaft 2631 facing away from the first resisting member 254; insert the first rotating shaft sections 2501 of the pair of second rotating shafts 250 into the third base 258 respectively from the side facing away from the third base 258. Two second shaft holes 2562, two first shaft holes 2522 and two fifth shaft holes 2586 of a resisting member 254; a pair of first elastic members 241 are respectively sleeved on the second shaft holes 250 of a pair of second rotating shafts 250. The second rotating shaft section 2503; assemble the second linkage component 26a, and set the second resisting member 257 on one side of the second driven gear set 263a, so that the two third cams 2570 are respectively connected with the two third resisting cams. 2563 cooperate with each other to resist; insert a pair of second connecting shafts 2731 into the two second guide sliding holes 2578 of the second resisting member 257 and the inner cavities of the two second gears 261a respectively; insert the other pair of second rotating shafts 250 The first rotating shaft section 2501 is inserted into the two fourth shaft holes 2572 of the second resisting member 257 and the second shaft holes 2562 of the pair of second torsion members 256 respectively; the two second elastic members 243 are respectively sleeved on the The second rotating shaft sections 2503 of another pair of second connecting shafts 2731; insert the third rotating shaft sections 2505 of the two second rotating shafts 250 into the two third bases 258 from the side away from the pair of first torsion members 252 respectively. In the fifth shaft hole 2586, at the same time, the ends of the pair of second connecting shafts 2731 facing away from the second torsion member 256 are respectively inserted into the two second mounting holes 2587 of the third base 258; one of the rotating shaft mounting parts 251 is set is provided on one of the pair of second rotating shafts 250 until the two second cams 2540 mesh with the two second resisting cams 2523 respectively; the third base 258 is sleeved on the first connection of the first driven gear set 263 The end of the shaft 2631 facing away from the first resisting member 254; insert the first rotating shaft section 2501 of the pair of second rotating shafts 250 into the two second shafts of the first resisting member 254 from the side facing away from the third base 258. hole 2562, two first shaft holes 2522 and two fifth shaft holes 2586; set the two rotating shaft mounting parts 251 on the opposite ends of the two pairs of second rotating shafts 250 respectively; assemble the rotating assembly 23, and connect the two first rotating shaft holes 2562. The base 231 is placed at the opposite ends of the torsion assembly, and the guide rails 2314 of the two first bases 231 are inserted into the guide grooves 2516 of the two shaft mounting parts 251 respectively, so that the two guide rails 2314 of each rotating shaft mounting part 251 The first resisting cam 2510 is rotatably resisted by the first cams 2330 of the two corresponding rotating members 233 respectively, and the two connecting members 234 are respectively connected to the opposite sides of the torsion component; each first base 231 The two rotating parts 233 on the top are rotatably connected to the two connecting parts respectively; then the support component is assembled to the front of the rotating component 23 and the torsion component 25; and then the two first bases 231 and the third base 258 are fixed respectively. Attached to the back cover.

At this time, the two first elastic members 241 are respectively sleeved on one of the pair of second rotating shafts 250, and the two first elastic members 241 are clamped by the first resisting member 254 and the corresponding rotating shaft mounting member 251. One end of the member 241 elastically pushes the first resisting member 254 against the pair of first torsion members 252, so that the two second cams 2540 of the first torsion member 254 are respectively connected with the two second cams 2540 of the pair of first torsion members 252. The resisting cams 2523 cooperate and resist each other, and the side of the pair of first torsion members 252 away from the first resisting member 254 resists the third base 258, and the other end of the first elastic member 241 resists the corresponding rotating shaft. The mounting member 251 causes the rotating shaft mounting member 251 to push the corresponding rotating member 233 against the corresponding first base 231 , and the two first pushing cams 2510 of the rotating shaft mounting member 251 are respectively in contact with the corresponding two rotating members 233 . The first cam 2330 cooperates with and resists each other; the two second elastic members 243 are respectively sleeved on the other pair of second rotating shafts 250, and the two second elastic members 243 are supported by the third base 258 and the second resisting member 257. Clamping, one end of the second elastic member 243 elastically pushes the second resisting member 257 against a pair of second torsion members 256, so that the second torsion member 256 abuts the corresponding rotating shaft mounting member 251, so that the rotating shaft mounting member 251 is clamped. 251 pushes the corresponding rotating member 233 against the corresponding first base 231, so that the two third cams 2570 of the second resisting member 257 respectively cooperate with the third resisting cams 2563 of the pair of second torsion members 256. They resist each other, and the two first resisting cams 2510 of the rotating shaft installation member 251 respectively cooperate with the first cams 2330 of the two corresponding rotating members 233 and resist each other. The other end of the second elastic member 243 resists the first Three bases 258.

Please refer to Figures 32 to 40 together. When bending the rotating shaft device 22a from the flat state, move one of the connecting members 234 relative to The first base 231 is bent toward another connecting piece 234. One of the connecting pieces 234 drives the first arc rail 2332 of the rotating member 233 to rotate in the first arc groove 2312 of the first base 231, and drives the corresponding The first torsion member 252 and the second torsion member 256 rotate around the corresponding second rotating shaft 250 respectively, so that the two first torsion members 252 and the two second torsion members 256 move toward each other, and the first torsion member 252 resists The first resisting member 254 is pushed to move along the axial direction of the second rotating shaft 250 to squeeze the first elastic member 241. The second torsion member 256 pushes the second resisting member 257 to move along the axial direction of the second rotating shaft 250 to be squeezed. The second elastic member 243; the first gear 261 on the first torsion member 252 rotates around the second rotating shaft 250 to drive the two first driven gears 2630 of the first driven gear set 263 to rotate, through the first driven gear set 263 drives the first gear 261 on the other first torsion member 252 to revolve around the corresponding second rotating shaft 250, thereby realizing the synchronous folding of the two first torsion members 252; the second gear 261a on the second torsion member 256 revolves around the second The rotating shaft 250 rotates to drive the two second driven gears 2730 of the second driven gear set 263a to rotate, and the second driven gear set 263a drives the second gear 261a on the other second torsion member 256 to rotate around the corresponding second driven gear set 263a. The rotating shaft 250 realizes the synchronous folding of the two second torsion members 256; at the same time, the rotating members 233 on the two first bases 231 respectively rotate synchronously and move closer to each other, so as to drive the two side supports to move closer to each other synchronously until The front side of the support assembly 28 is formed into a drop-shaped cross section.

When the rotating shaft device 22a is unfolded from the fully bent state, one of the connecting parts 234 is unfolded away from the other connecting part 234 relative to the first base 231, and the one of the connecting parts 234 drives the first arc of the rotating part 233. The rail 2332 rotates in the first arc groove 2312 of the first base 231, and drives the corresponding first torsion member 252 and the second torsion member 256 to rotate around the corresponding first rotating shaft 253, so that the two first torsion The first torsion member 252 moves away from each other and the two second torsion members 256 move away from each other. The first torsion member 252 pushes the first resisting member 254 to move along the axial direction of the second rotating shaft 250 and squeezes the first elastic member 241. 256 pushes the second resisting member 257 to move along the axial direction of the second rotating shaft 250 to squeeze the second elastic member 243; the first gear 261 on the first torsion member 252 rotates around the second rotating shaft 250 to drive the first driven member The two first driven gears 2630 of the gear set 263 rotate, and the first driven gear set 263 drives the first gear 261 on the other first torsion member 252 to revolve around the corresponding second rotating shaft 250, thereby realizing two first When the torsion member 252 is synchronously deployed, the second gear 261a on the second torsion member 256 rotates around the second rotating shaft 250 to drive the two second driven gears 2730 of the second driven gear set 263a to rotate. Through the second driven gear The group 263a drives the second gear 261a on the other second torsion member 256 around the corresponding second rotating shaft 250, thereby realizing the synchronous deployment of the two second torsion members 256; the two rotating members 233 of the rotating assembly 23 are relative to the first The bases 231 rotate synchronously and expand each other, so as to drive the support components 28 to expand each other until the front surface of the support component 28 is flat.

During the folding or unfolding process of the rotating shaft device 22a, the axial force between the second cam 2540 and the second resisting cam 2523 on one of the second rotating shafts 250 is equal to the sum of the elastic forces of the two first elastic members 241, and The axial force between the first resisting cam 2510 and the corresponding first cam 2330 of the rotating shaft mounting member 251 that the first elastic member 241 abuts is equal to the sum of the elastic forces of the two first elastic members 241; the other second rotating shaft The axial force between the third cam 2570 and the third resisting cam 2563 on the 250 is equal to the sum of the elastic forces of the two second elastic members 243, and the first contact force of the rotating shaft mounting member 251 that the second elastic member 243 resists. The axial force between the top cam 2510 and the corresponding first cam 2330 is equal to the sum of the elastic forces of the two second elastic members 243 . The frictional torque between the second resisting cam 2523 and the second cam 2540, the frictional torque between the third resisting cam 2563 and the third cam 2570, the first cam 2330 of each rotating shaft mounting member 251 and the corresponding first The frictional torque between the resisting cams 2510, the frictional resistance between each rotating shaft mounting member 251 and the corresponding first base 231, the end of each first torsion member 252 away from the second resisting cam 2523 and the third base The friction resistance between the seats 258 and the friction resistance between the end of each second torsion member 256 away from the third resisting cam 2563 and the corresponding rotating shaft mounting member 251 limit the two side supports to a position between 70 degrees and 70 degrees. A specific angle between 130 degrees.

The present invention also provides a folding housing provided with the above-mentioned rotating shaft device 22a. The rotating shaft device 22a is located between the two housings. The rotating shaft device 22a The opposite sides are respectively connected to the two shells of the folding shell.

The present invention also provides electronic equipment provided with the above-mentioned rotating shaft device 22a. The electronic equipment includes a rotating shaft device 22a, a flexible screen and two housings. The rotating shaft device 22a is located between the two housings. The opposite sides of the rotating shaft device 22a are respectively Connected to the two housings, the back side of the flexible screen fits the front side of the rotating shaft device 22a and the front sides of the two housings.

The rotating shaft device 22a of the present invention realizes synchronous folding or unfolding through the rotating component and the torsion component, because there is friction resistance between the first torsion component 252 and the first resisting component 254, and between the second torsion component 256 and the second resisting component 257. There is frictional resistance, and there is frictional resistance between the rotating member 233 and the rotating shaft mounting member 251. When the electronic device is subject to external force, these frictional resistances can limit the first torsion member 252, the second torsion member 254 and the connecting member 233. Remain motionless relative to the first base 231 to achieve hovering of the two side supports, so that the electronic device has a hovering effect; secondly, there is friction resistance between the rotating member 233 and the first base 231, and the first There is frictional resistance between the torsion force 252 and the third base 258 and frictional resistance between the second torsion member 256 and the corresponding rotating shaft mounting member 251, so that the hovering effect of the electronic device is better; in addition, the first elastic member 241 The opposite ends of the second elastic member 243 elastically resist the first resisting member 254 and the rotating shaft mounting member 251 respectively. The opposite ends of the second elastic member 243 elastically resist the second base 258 and the second resisting member 257 respectively, so that the rotating shaft device 22a The structure is compact, and the volume of the rotating shaft device 22a is reduced, thereby reducing the internal space occupied by the rotating shaft device 22a of the folding case, which is not only conducive to the layout of other components such as the motherboard or battery, but also is conducive to miniaturization development; the structure of the rotating shaft device 22a It is simple, has low manufacturing cost, has high reliability of connection between components, and improves the strength of the whole machine.

Please refer to Figures 41 to 46 together. The structure of the rotating shaft device 22b in the third embodiment of the present application is similar to the structure of the rotating shaft device 22 in the first embodiment. The difference is that: the rotating shaft device 22b in the first embodiment The rotating shaft device 22 in the example omits the second base, and adds a pair of second torsion members and a pair of second resisting members. Specifically, the rotating shaft device 22b includes a rotating component 23, a torsion component 25b, and an elastic component 24. And the support component 28, the rotating component 23 includes two first bases 231, a pair of rotating parts 233 rotatably provided on opposite sides of each first base 231, and a pair of connecting parts (not shown in the figure); The rotating shaft includes two pairs of second rotating shafts 250, and the two pairs of second rotating shafts 250 are arranged along the direction of the rotating axis between the rotating member 233 and the first base 231; the torsion assembly 25b includes a pair of first torsion members 252, a pair of Three torsion members 259, a first resisting member 254 and a pair of second resisting members 257; two pairs of second rotating shafts 250, a pair of first torsion members 252, a pair of third torsion members 259, the first resisting members 254 and A pair of second resisting members 257 is located between the two first bases 231. The ends of the two pairs of second rotating shafts 250 that are far away from each other are respectively connected to the two rotating shaft mounting members 251. A pair of first torsion members 252 can respectively rotate. is sleeved on one pair of second rotating shafts 250, a pair of third torsion members 259 is rotatably sleeved on the other pair of second rotating shafts 250, and the two first resisting members 254 are along the axial direction of the second rotating shaft 250. Slidingly sleeved on two pairs of second rotating shafts 250 respectively, a pair of first torsion members 252 rotatably abuts the first resisting members 254 respectively, and a pair of second resisting members 257 along the other pair of second rotating shafts 250 are sleeved on a pair of second rotating shafts 250 in an axial sliding manner, and a pair of second resisting members 257 clamp a pair of third torsion members 259 . The structures of the rotating component 23, the elastic component 24 and the supporting component 28 of the rotating shaft device 22b in the third embodiment are respectively the same as those in the first embodiment and will not be described again.

Each pair of second rotating shafts 250 is spaced parallel to each other. The second rotating shaft 250 includes a first rotating shaft section 2501, a second rotating shaft section 2503, and a third rotating shaft section 2505. The first rotating shaft section 2501, the second rotating shaft section 2503, and the third rotating shaft section 2505 Coaxial center line, the outer diameter of the first rotating shaft segment 2501 and the outer diameter of the third rotating shaft segment 2505 are both smaller than the outer diameter of the second rotating shaft segment 2503, and the outer diameter of the third rotating shaft segment 2505 is smaller than the top hole of the rotating shaft mounting member 251 2514 inner diameter. The axial length of the first rotating shaft section 2501 is greater than the axial length of the second rotating shaft section 2503 .

The two second cams 2540 of the first resisting member 254 are respectively sleeved on the pair of second rotating shafts 250 . The two second cams 2540 of the first resisting member 254 are respectively connected with the second cams 2540 of the pair of first torsion members 252 . The resisting cam 2523 is rotatably resisted; each third torsion member 259 includes two fourth resisting cams 2593 provided at its opposite ends, and the two fourth resisting cams 2593 of the third torsion member 259 are rotatably sleeved. corresponding to A pair of second rotating shafts 250, each second resisting member 257 includes two third cams 2570 slidably sleeved on the pair of second rotating shafts 250, wherein the two third cams of a second resisting member 257 2570 respectively rotatably resists the two third cams 2570 on one side of the pair of third torsion members 259, and the two third cams 2570 of the other second resisting member 257 respectively resist against the pair of third torsion members 259. The two third cams 2570 on the opposite side are rotationally resisted. Specifically, the third torsion member 259 includes a third rotating part 2590 rotatably connected to the second rotating shaft 250, two fourth resisting cams 2593 provided at opposite ends of the third rotating part 2560, and a third rotating part 2590 connected to the third rotating part 2590. 2590's third connecting portion 2595, the third resisting cam 2593 is rotatably sleeved on the corresponding second rotating shaft 250; the second resisting member 257 includes two third cams slidingly sleeved on a pair of second rotating shafts 250 2570, a pair of second rotating shafts 250 penetrates a pair of fourth resisting cams 2593 of a pair of third torsion members 259 and a pair of third cams 2570 of a pair of second resisting members 257. The two fourth resisting cams on the same side 2593 respectively rotatably resists each other with the corresponding two third cams 2570 . The third rotating part 2590 is provided with a sixth axis hole 2592 along the axial direction of the second rotating shaft 250, and the second rotating shaft 250 passes through the sixth axis hole 2592; the end of the third connecting part 2595 away from the third rotating part 2590 is slidably Connected to the connecting piece; the two fourth resisting cams 2593 are provided at opposite ends of the third rotating part 2590 along the axial direction of the sixth axis hole 2592, and the axis lines of the two fourth resisting cams 2593 are in line with the sixth axis. The axes of the holes 2592 are collinear, and the fourth pushing cam 2593 and the third cam 2570 cooperate with each other to push. The first elastic member 241 is arranged in a compressed state between the first resisting member 254 and one of the third resisting members 257. The first elastic member 241 provides one of the second resisting members 257 and a pair of third torsion members. 259 and the elastic force between the first resisting member 254 and a pair of first torsion members 252; the second elastic member 243 is provided in a compressed state between another second resisting member 257 and a pair of first torsion members 252. Between the corresponding rotating shaft mounting parts 251, the second elastic member 243 provides the elastic force between the second resisting member 257 and the pair of third torsion members 259 to resist each other, and the rotating shaft mounting member 251 and the corresponding pair of rotating parts 233. The elasticity that resists each other.

The third torsion member 259 is slidably connected to the corresponding connecting member through the cooperation of the guide slide groove and the guide slide rail. The guide slide groove is provided at one of the connecting member and the third torsion member 259 . The guide slide rail is provided with to the other one of the connecting member and the third torsion member 259 . In this embodiment, a third guide slide groove is provided on the connecting member along the axial direction perpendicular to the second rotating shaft 250, and third guide slide rails 2597 are provided on opposite sides of the third connecting portion 2595 of the third torsion member 259. The third guide rail 2597 is slidably inserted into the second guide groove of the corresponding connecting piece.

The third rotating part 2590 is a third rotating cylinder 2591 sleeved on the second rotating shaft 250. Two fourth resisting cams 2593 are provided at opposite ends of the third rotating cylinder 2591. The two fourth resisting cams 2593 are The axis line is collinear with the axis line of the third rotating cylinder 2591; the second resisting member 257 also includes two second resisting cylinders 2571 respectively sleeved on the two second rotating shafts 250 and connected to the two second resisting cylinders 2571. The second connection portion 2576 between the resistance tubes 2571, the third cam 2570 is provided at the end of the second resistance tube 2571 facing the third torsion member 259, the axis center line of the third cam 2570 and the second resistance tube The axis lines of 2571 are collinear. Specifically, the fourth resisting cam 2593 includes a concave and convex surface provided on one end of the third rotating barrel 2591 facing the second resisting member 257. The concave and convex surface includes a fifth protruding portion 2594 and a fifth recessed portion 2596. The outlet portion 2594 and the fifth recessed portion 2596 are arranged at intervals along the circumferential direction of the third rotating cylinder 2591. The number of fifth protruding parts 2594 and the number of fifth recessed parts 2596 can be set as needed. For example, the fourth resisting cam 2593 may include one fifth protruding part 2594, one fifth recessed part 2596, and two fifth recessed parts 2596. The protruding part 2594 and two fifth recessed parts 2596, three fifth protruding parts 2594 and three fifth recessed parts 2596, or four fifth protruding parts 2594 and four fifth recessed parts 2596, etc. In this embodiment, the fourth resisting cam 2593 includes three fifth protruding portions 2594 and three fifth recessed portions 2596 arranged at intervals along the circumferential direction of the third rotating barrel 2591. A third cam 2570 is provided at one end of each second resisting tube 2571 facing the third torsion member 259. The third cam 2570 includes a concave and convex surface provided at one end of the second resisting tube 2571 facing the third torsion member 259. The concave and convex surface includes a fourth protruding part 2573 and a fourth recessed part 2575. The fourth protruding part 2573 and the fourth recessed part 2575 are arranged at intervals along the circumferential direction of the second resisting tube 2571. The number of the fourth protruding portions 2573 and the number of the fourth recessed portions 2575 can be set as needed. For example, the third cam 2570 can include one fourth protruding portion 2573, one fourth recessed portion 2575, and two fourth recessed portions 2575. The protruding part 2573 and two fourth recessed parts 2575, three fourth protruding parts 2573 and three fourth recessed parts 2575, or four fourth protruding parts 2573 and four fourth recessed parts 2575, etc. In this embodiment, the third cam 2570 includes three fourth protruding portions 2573 and three fourth recessed portions 2575 arranged at intervals along the circumferential direction of the second resisting tube 2571 .

The rotating shaft device 22b also includes a third linkage component 26b. The third linkage component 26b includes a third gear 261b respectively provided on a pair of third torsion members 259 and a third driven gear set provided between the two third gears 261b. 263b, the third gear 261b of each third torsion member 256 is respectively engaged with the third driven gear set 263b, so that the pair of third torsion members 259 can rotate synchronously. In this embodiment, the two third torsion members 259 are respectively provided with third gears 261b, and a third driven gear set 263b is provided between the two third torsion members 259. Each third gear 261b is meshed with the third gear 261b respectively. Driven gear set 263b. When one of the third torsion members 259 rotates around the corresponding second rotating shaft 250, the third gear 261b on the third torsion member 259 is driven to rotate around the second rotating shaft 250, and is driven by the third driven gear set 263b. Another third torsion member 259 rotates synchronously around the corresponding second rotating shaft 250 . The third linkage component 26b of the rotating shaft device 22b can realize the synchronous folding or synchronous flattening of the two third torsion components 259 of the torsion component, the synchronous folding or synchronous flattening of the two pairs of rotating components 233 of the rotating component 23, and can achieve support. The two side supports of the assembly are folded or flattened synchronously to realize the synchronous folding or flattening of the two shells.

Specifically, a third gear 261b is provided on the outer peripheral wall of the third rotating barrel 2591 away from the third connecting portion 2595, and the axis line of the third gear 261b is collinear with the axis line of the third rotating barrel 2591. The third driven gear set 263b includes two third driven gears meshing with each other and third connecting shafts respectively passing through the two third driven gears. Each third driven gear is connected to a corresponding third connecting shaft. On the coaxial center line, the third gears 261b on the two third torsion members 259 are respectively meshed with the two third driven gears, so that the pair of third torsion members 259 can rotate synchronously. The third driven gear includes a sleeve that is sleeved on the corresponding second connecting shaft 2731. The teeth of the third driven gear are arranged in a circle on the outer peripheral wall of the sleeve along the circumferential direction of the sleeve.

When assembling the rotating shaft device 22b, since the assembly method of the rotating shaft device 22b is similar to the assembly method of the rotating shaft device 22 in the first embodiment, here we only briefly introduce the assembly process of the rotating device 22b: assemble the first linkage component 26, put the first The resisting member 254 is sleeved on the first connecting shaft 2631 so that the two second cams 2540 mesh with the second resisting cams 2523 of the two first torsion members 252 respectively; The rotating shaft segments 2501 are respectively inserted into the two second shaft holes 2562 and the two first shaft holes 2522 of the first resisting member 254; a pair of first elastic members 241 are respectively sleeved on the second rotating shafts of a pair of second rotating shafts 250. Section 2503; mesh the third gears 261b of the pair of third torsion members 259 with the two second driven gears of the third driven gear set 263b respectively; set the two second resisting members 257 on the third driven gear set 263b respectively. The driven gear set 263b is on opposite sides, so that the two third cams 2570 of one of the second resisting members 257 cooperate with the two fourth resisting cams 2593 on one side of the two third torsion members 259 to resist each other. , the two third cams 2570 of the other second resisting member 257 cooperate with the two fourth resisting cams 2593 on the opposite side of the two third torsion members 259 to resist each other; connect the other pair of second rotating shafts The first rotating shaft section 2501 of 250 is inserted into the two fourth shaft holes 2572 of one of the second resisting members 257, the sixth shaft holes 2592 of a pair of third torsion members 259, and the two fourth shaft holes of the other second resisting member 257. a fourth shaft hole 2572; the two second elastic members 243 are respectively sleeved on the other pair of second connecting shafts. 2731 of the second rotating shaft section 2503; insert the third rotating shaft section 2505 of the pair of second rotating shafts 250 inserted into the first resisting member 254 into the second resisting member 257 away from the two second elastic members 243 respectively. Two fourth shaft holes 2572; fit the two rotating shaft mounting pieces 251 on the opposite ends of the two pairs of second rotating shafts 250, assemble the rotating assembly 23, and place the two first bases 231 on the opposite ends of the torsion assembly. , let the guide slide rails 2314 of the two first bases 231 be inserted into the guide slide grooves 2516 of the two rotating shaft mounting parts 251, so that the two first resisting cams 2510 of each rotating shaft mounting part 251 are respectively connected with the corresponding two The first cam 2330 of the rotating member 233 is rotatably resisted, and the two connecting members are placed on opposite sides of the torsion assembly, so that the first guide slide rails 2527 of the two first torsion members 252 are respectively inserted on both sides. In the first guide slide grooves of the two connectors, the third guide slide rails 2597 of the two third torsion members 259 are respectively inserted into the third guide slide grooves of the two connectors; The two rotating parts 233 are respectively rotatably connected to the two connecting parts; then the support component is assembled to the front of the rotating component 23 and the torsion component 25; and then the two first bases 231 are fixedly connected to the back cover respectively.

At this time, the two first elastic members 241 are respectively sleeved on the pair of second rotating shafts 250, and the two first elastic members 241 are clamped by the first resisting member 254 and one of the second resisting members 257. One end of an elastic member 241 elastically pushes the first resisting member 254 against the pair of first torsion members 252, so that the two second cams 2540 of the first resisting member 254 are respectively in contact with the two first torsion members 252. The two second resisting cams 2523 cooperate and resist each other, and the side of the pair of first torsion members 252 away from the first resisting member 254 resists the corresponding rotating shaft mounting member 251, so that the two second resisting cams 2523 of the rotating shaft mounting member 251 are pressed against each other. A resisting cam 2510 respectively cooperates with the first cam 2330 of a pair of rotating members 233 and resists each other, and the pair of rotating members 233 and the corresponding first base 231 resist each other; the other end of the first elastic member 241 resists each other. Push one of the second resisting members 257 so that the two third cams 2570 of the one of the second resisting members 257 cooperate with the two fourth resisting cams 2593 on one side of the pair of third torsion members 259 respectively. push against each other; the two second elastic members 243 are respectively sleeved on the other pair of second rotating shafts 250, and the two second elastic members 243 are clamped by the other second resisting member 257 and the corresponding rotating shaft mounting member 251. One end of the second elastic member 243 elastically pushes the second resisting member 257 against the pair of third torsion members 259 , so that the two third cams 2570 of the second resisting member 257 and the pair of third torsion members 259 The two fourth pushing cams 2593 on the other side cooperate and push against each other. The other end of the second elastic member 243 elastically pushes the corresponding rotating shaft mounting part 251 against a pair of rotating parts 233, so that the rotating shaft mounting part 251 is The two first pushing cams 2510 respectively cooperate with the first cams 2330 of the pair of rotating parts 233 and push against each other, and the pair of rotating parts 233 and the corresponding first bases 231 push against each other.

When the rotating shaft device 22b is bent from the flat state, one of the connecting parts 234 is bent toward the other connecting part 234 relative to the first base 231, and one of the connecting parts 234 drives the rotating part 233 relative to the first base. The seat 231 rotates and drives the corresponding first torsion member 252 and the third torsion member 259 to rotate around the corresponding second rotating shaft 250 respectively, so that the two first torsion members 252 and the two third torsion members 259 move closer to each other. , the first torsion member 252 pushes the first resisting member 254 to move along the axial direction of the second rotating shaft 250 and squeezes the first elastic member 241, and the second torsion member 259 synchronously pushes the two second resisting members 257 along the first axis. The axial movement of the two rotating shafts 250 squeezes the first elastic member 241 and the second elastic member 243 respectively; the first gear 261 on the first torsion member 252 rotates around the second rotating shaft 250 to drive the first driven gear set 263 The two first driven gears 2630 rotate, and the first driven gear set 263 drives the first gear 261 on the other first torsion member 252 around the corresponding second rotating shaft 250, thereby realizing the rotation of the two first torsion members 252. Synchronous folding; the third gear 261b on the third torsion member 259 rotates around the second rotating shaft 250 to drive the two third driven gears of the third driven gear set 263b to rotate, and drives another third driven gear set 263b through the third driven gear set 263b. The third gear 261b on the third torsion member 259 rotates around the corresponding second rotation axis 250, thereby realizing the synchronous folding of the two third torsion members 259; at the same time, the rotating members 233 on the two first bases 231 rotate synchronously respectively. move closer to each other to drive the two side supports to move closer to each other synchronously until the front side of the support assembly 28 forms a water drop shape in cross section.

When the rotating shaft device 22b is unfolded from the fully bent state, one of the connecting parts 234 is unfolded away from the other connecting part 234 relative to the first base 231, and one of the connecting parts 234 drives the rotating part 233 relative to the first base. The base 231 rotates and drives the corresponding first twist The force member 252 and the third torsion member 259 rotate around the corresponding first rotation axis 253 respectively, so that the two first torsion members 252 move away from each other and the two third torsion members 259 move away from each other. The first torsion member 252 pushes against the first torsion member 259 . The resisting member 254 moves along the axial direction of the second rotating shaft 250 to squeeze the first elastic member 241. The third torsion member 259 synchronously pushes a pair of second resisting members 257 to move along the axial direction of the second rotating shaft 250 to respectively move. Squeeze the first elastic member 241 and the second elastic member 243; the first gear 261 on the first torsion member 252 rotates around the second rotating shaft 250 to drive the two first driven gears of the first driven gear set 263 to rotate, The first driven gear set 263 drives the first gear 261 on the other first torsion member 252 around the corresponding second rotating shaft 250 , thereby realizing the synchronous deployment of the two first torsion members 252 , and the third torsion member 259 The third gear 261b rotates around the second rotating shaft 250 to drive the two third driven gears of the third driven gear set 263b to rotate, and drives the third gear on the other third torsion member 259 through the third driven gear set 263b. 261b revolves around the corresponding second rotating shaft 250, thereby realizing the synchronous expansion of the two third torsion members 259; the two rotating members 233 of the rotating assembly 23 rotate synchronously relative to the first base 231 and expand each other, so as to drive the support components to expand each other. , until the front side of the support assembly is flat.

During the folding or unfolding process of the rotating shaft device 22b, the frictional torque between the second resisting cam 2523 and the second cam 2540, the fourth resisting cam 2593 at the opposite ends of each third torsion member 259, and the third cam 2570 respectively The frictional torque between the first cam 2330 of each rotating shaft mounting member 251 and the corresponding first resisting cam 2510 , the end of each first torsion member 252 away from the second resisting cam 2523 and the rotating shaft The friction resistance between the mounting members 251 and the friction resistance between each rotating member 233 and the corresponding first base 231 limit the two side supports to a specific angle between 70 degrees and 130 degrees.

The present invention also provides a folding case provided with the above-mentioned rotating shaft device 22b. The rotating shaft device 22b is located between the two shells. The opposite sides of the rotating shaft device 22b are respectively connected to the two shells of the folding case.

The present invention also provides an electronic device provided with the above-mentioned rotating shaft device 22b. The electronic device includes a rotating shaft device 22b, a flexible screen and two housings. The rotating shaft device 22b is located between the two housings. The opposite sides of the rotating shaft device 22b are respectively Connected to the two housings, the back side of the flexible screen fits the front side of the rotating shaft device 22b and the front sides of the two housings.

The rotating shaft device 22b of the present invention realizes synchronous folding or unfolding through the rotating component and the torsion component. Because there is friction resistance between the first torsion component 252 and the first resisting component 254, a pair of third torsion components 259 and two second resisting components. There is friction resistance between the components 257, and friction resistance between the rotating component 233 and the rotating shaft mounting component 251. When the electronic device is not subject to external force, these frictional resistances can limit the first torsion component 252 and the third torsion component 259. And the connecting piece 233 remains motionless relative to the first base 231 to achieve hovering of the two side supports, so that the electronic device has a hovering effect; secondly, there is friction between the rotating piece 233 and the first base 231 There is frictional resistance between the resistance and the first torsion 252 and the rotating shaft mounting member 251, so that the hovering effect of the electronic device is better; in addition, the opposite ends of the first elastic member 241 elastically resist the first resisting member 254 and 251 respectively. Opposite ends of one of the second resisting members 257 and the second elastic member 243 elastically resist the other second resisting member 257 and the corresponding rotating shaft mounting member 251 respectively, so that the structure of the rotating shaft device 22b is compact. The volume is reduced, thereby reducing the internal space occupied by the rotating shaft device 22b of the folding case, which is not only conducive to the layout of other components such as the motherboard or battery, but also is conducive to miniaturization development; the rotating shaft device 22b has a simple structure, low manufacturing cost, and The connection between various components is highly reliable and the strength of the whole machine is improved.

The above is the implementation of the embodiments of the present application. It should be pointed out that for those of ordinary skill in the technical field, several improvements and modifications can be made without departing from the principles of the embodiments of the present application. These improvements and modifications can also be made. regarded as the protection scope of this application.

Claims

A rotating shaft device, characterized in that the rotating shaft device includes:

The rotating component includes a first base and a rotating member, the rotating member is rotationally connected to the first base, and the rotating member includes a first cam;

The torsion assembly includes a rotating shaft and a rotating shaft mounting piece. The axis line of the rotating shaft is parallel to the rotating axis center line between the rotating member and the first base. The rotating shaft mounting piece is along the axial direction of the rotating shaft. Slidingly sleeved on the rotating shaft, the rotating shaft mounting member includes a first resisting cam; and

The elastic component includes a first elastic member. One end of the rotating shaft mounting member abuts the first elastic member, and the other end of the rotating shaft mounting member away from the first elastic member abuts the rotating member. An elastic member elastically pushes against the rotating shaft mounting member so that the first resisting cam and the first cam rotatably resist each other.
The rotating shaft device according to claim 1, wherein the rotating shaft mounting member is slidably connected to the first base along the axial direction of the rotating shaft, and the first elastic member elastically pushes against the rotating shaft mounting member. The rotating member is pressed against the rotating member, so that the side of the rotating member away from the rotating shaft mounting member is pressed against the first base.
The rotating shaft device according to claim 1, wherein the torsion component further includes a first torsion member and a first resisting member, the first torsion member is rotationally connected to the rotating shaft, and the first resisting member The holding member is slidably sleeved on the rotating shaft along the axial direction of the rotating shaft. The first resisting member is located between the first torsion member and the first elastic member. The first elastic member elastically resists Push the first resisting member against the first torsion member; when the first torsion member rotates around the rotation axis, the first torsion member pushes the first resisting member along the rotation axis axial movement to squeeze the first elastic member.
The rotating shaft device according to claim 3, characterized in that the first torsion member includes a second resisting cam, the first resisting member includes a second cam, and the rotating shaft passes through the second resisting cam. The top cam and the second cam, the second cam and the second top cam rotatably resist each other.
The rotating shaft device according to claim 4, characterized in that the rotating assembly includes two first bases, and one rotating member is provided on opposite sides of each first base. One of the rotating parts and the corresponding first base rotatably abuts each other; the torsion component is provided between the two first bases, and the torsion component includes two rotating shaft mounting parts, each of which The rotating shaft mounting member is slidably connected to the corresponding first base along the axial direction of the rotating shaft. Each rotating shaft mounting member includes two first resisting cams. Each rotating shaft mounting member The two first resisting cams are rotationally resisted by the first cams of the corresponding two rotating parts.
The rotating shaft device according to claim 5, characterized in that the rotating shaft of the torsion assembly includes a pair of first rotating shafts spaced parallel to each other, the torsion assembly includes a pair of the first torsion members, and the two rotating shafts are installed The first torsion members are respectively slidably sleeved on the opposite ends of the pair of first rotating shafts, the pair of first torsion members are respectively rotatably sleeved on the pair of first rotating shafts, and the first resisting members include respectively The two second cams are sleeved on the pair of first rotating shafts, and the two second cams are rotatably resisted by the second resisting cams of the pair of first torsion members respectively.
The rotating shaft device according to claim 6, wherein the elastic component further includes a second elastic member, and the first elastic member is clamped between the first resisting member and one of the rotating shaft mounting members. The second elastic member is clamped between the other rotating shaft mounting member and the pair of first torsion members.
The rotating shaft device according to claim 7, wherein the torsion component further includes a second base, the second base is sleeved on a pair of the first rotating shafts, and a pair of the first torsion members The side away from the first resisting member presses against the second base, and the second The elastic member is clamped by the second base and the other rotating shaft mounting member.
The rotating shaft device according to claim 6, characterized in that the rotating shaft device further includes a first linkage component, and the first linkage component includes a first gear respectively provided on a pair of the first torsion members and a first gear provided on the first torsion member. A first driven gear set between the two first gears, and a pair of first gears on the first torsion members are respectively meshed with the first driven gear set, so that a pair of the first torsion parts The pieces rotate synchronously.
The rotating shaft device according to claim 5, wherein the rotating assembly further includes two connecting pieces located on opposite sides of the torsion assembly, and the two rotating pieces on the same side are away from the first base. One end of the first torsion member is rotatably connected to the corresponding connecting piece, and one end of the first torsion member away from the corresponding first rotating shaft is slidably connected to the corresponding connecting piece.
The rotating shaft device according to claim 5, characterized in that the rotating shaft of the torsion assembly includes two pairs of second rotating shafts, and the two pairs of second rotating shafts rotate along the rotation between the rotating member and the first base. Arranged in the direction of the axis, the torsion assembly also includes a pair of second torsion members and a second resisting member, two pairs of second rotating shafts, a pair of said first torsion members, a pair of said second torsion members, and The first resisting member and the second resisting member are located between the two first bases, and the ends of the two pairs of second rotating shafts facing away from each other are respectively connected to the rotating shaft mounting member. The first torsion members are rotatably sleeved on one pair of the second rotating shafts respectively, and the pair of second torsion members are respectively rotatably sleeved on the other pair of the second rotating shafts. The second resisting member is slidably sleeved on one pair of the second rotating shafts, and the second resisting member is slidably sleeved on the other pair of the second rotating shafts.
The rotating shaft device according to claim 11, wherein the second resisting member includes two third cams respectively sleeved on another pair of second rotating shafts, and each second torsion member includes For the corresponding third resisting cam of the second rotating shaft, the two third cams of the second resisting member are rotatably resisted by a pair of third resisting cams of the second torsion member respectively.
The rotating shaft device according to claim 11, characterized in that the torsion component further includes a third base, the third base is connected between two pairs of the second rotating shafts, and a pair of the first torsion shafts The side of the pair of second torsion members that is away from the first resisting member abuts against the third base, and the side of a pair of second torsion members that is away from the second resisting member abuts against the corresponding rotating shaft mounting member.
The rotating shaft device according to claim 13, wherein the elastic component includes two first elastic members and two second elastic members, and the two first elastic members are respectively sleeved on one of the pair. The second rotating shaft, the two second elastic members are respectively sleeved on the other pair of second rotating shafts, and the two second elastic members are supported by the third base and the second resisting member. One end of the second elastic member elastically pushes the second resisting member against a pair of second torsion members, so that the second torsion member presses against the corresponding rotating shaft mounting member, so that the The rotating shaft mounting component pushes the corresponding rotating component against the corresponding first base, and the other end of the second elastic component presses against the third base.
The rotating shaft device according to claim 11, characterized in that the rotating shaft device further includes a second linkage component, and the second linkage component includes a second gear respectively provided on a pair of the second torsion members and a second linkage component provided on the second torsion member. The second driven gear set between the two second gears, the second gear of each second torsion member is respectively meshed with the second driven gear set, so that a pair of the second torsion members Synchronized rotation.
The rotating shaft device according to claim 5, characterized in that the rotating shaft of the rotating assembly includes two pairs of second rotating shafts, and the two pairs of second rotating shafts rotate along the rotation between the rotating member and the first base. Arranged in the direction of the axis, the torsion assembly also includes a pair of third torsion members and a pair of second resisting members, two pairs of second rotating shafts, a pair of first torsion members, a pair of third The torsion member, the first resisting member and the pair of second resisting members are located between the two first bases, and the ends of the two pairs of second rotating shafts facing away from each other are respectively connected to the two In the rotating shaft mounting member, a pair of the first torsion members are respectively rotatably sleeved on a pair of the second rotating shafts, and a pair of the second rotating shafts. Three torsion members are respectively rotatably sleeved on the other pair of second rotating shafts, the first resisting member is slidably sleeved on one of the pair of second rotating shafts, and the pair of second resisting members are slidably sleeved on one of the pair of second rotating shafts. is sleeved on another pair of the second rotating shafts, and a pair of the second resisting parts clamps a pair of the third torsion parts.
The rotating shaft device according to claim 16, characterized in that the third torsion member includes two fourth resisting cams, and the two fourth resisting cams are respectively provided on the axial direction of the second rotating shaft. At opposite ends of the third torsion member, each of the second resisting members includes two third cams, wherein the two third cams of one of the second resisting members are respectively connected to a pair of the third torsion members. The two fourth resisting cams on one side of the member are rotationally resisted, and the two third cams of the other second resisting member are respectively opposite to the pair of third torsion members on the other side. The fourth resisting cam is rotatably resisted.
The rotating shaft device according to claim 17, wherein the elastic component includes two first elastic members and two second elastic members, and the two first elastic members are respectively sleeved on one of the pair. The second rotating shaft, the two first elastic members are clamped by the first resisting member and one of the second resisting members, and one end of the first elastic member elastically pushes against the first The resisting member resists the pair of first torsion members, so that the two second cams of the first resisting member respectively cooperate with the two second resisting cams of the pair of first torsion members and resist each other. The other end of the first elastic member pushes against one of the second resisting members, so that the two third cams of the second resisting member are respectively connected with one side of the pair of third torsion members. The two fourth resisting cams cooperate and resist each other; the two second elastic members are respectively sleeved on the other pair of second rotating shafts, and the two second elastic members are supported by another pair of second rotating shafts. The second resisting member is clamped with the corresponding rotating shaft mounting member, and one end of the second elastic member elastically pushes the other second resisting member against the pair of third torsion members, so that the The two third cams of the other second resisting member cooperate with the two fourth resisting cams on the other side of the pair of third torsion members and resist each other. The other end of the second elastic member elastically resists Push the corresponding rotating shaft mounting part against the pair of rotating parts, so that the two first resisting cams of the rotating shaft mounting part cooperate with the first cams of the pair of rotating parts respectively and push against each other.
A folding casing, characterized in that the folding casing includes two frames and the rotating shaft device according to any one of claims 1 to 18, and the rotating shaft device is located between the two said frames, Opposite sides of the rotating shaft device are respectively connected to the two frames.
An electronic device, characterized in that the electronic device includes the rotating shaft device according to any one of claims 1 to 18, a flexible screen and two frames, the rotating shaft device is located between the two frames , Opposite sides of the rotating shaft device are respectively connected to the two frames, and the back of the flexible screen is attached to the front of the rotating shaft device and the front of the frame.