Folding device, folding shell and electronic equipment

Abstract

The invention provides a folding device which comprises a base, a rotating mechanism and a supporting mechanism, the rotating mechanism comprises a first rotating part and a second rotating part, the first rotating part is rotationally connected to one side of the base, and the second rotating part is rotationally connected to the other opposite side of the base; a first axis of the first rotating part rotating relative to the base is parallel to a second axis of the second rotating part rotating relative to the base; the supporting mechanism comprises a middle supporting piece, the first rotating piece is rotationally connected with one side of the middle supporting piece through a cam, and the second rotating piece is rotationally connected with the other opposite side of the middle supporting piece; when the folding device is in a flattened state, the front face of the middle supporting piece is parallel to the plane where the first axis and the second axis are located. When the folding device is in a folded state, the front face of the middle supporting piece inclines to the plane where the first axis and the second axis are located. The invention further provides the folding shell and the electronic equipment.

Description

Technical Field

[0001] This invention relates to the field of electronic devices, and more particularly to a folding device for supporting a flexible screen, a folding housing provided with the folding device, and an electronic device provided with the folding housing. Background Technology

[0002] With the development of display equipment, flexible displays have emerged, and foldable screen devices equipped with these displays are increasingly popular due to their unique shapes and diverse functions. Flexible displays in related technologies generally use a hinge for support or folding. This hinge, as a crucial component of the foldable device, significantly impacts the overall slim design, the reliability of the flexible display, and the user experience. Currently, foldable phones on the market generally adopt a symmetrical design, where the hinge and the flexible screen's bending shape are symmetrical. These symmetrical hinge and flexible screen bending shapes complement each other, exhibiting a dynamic and logical connection. However, if the flexible screen's bending shape becomes asymmetrical, the hinge mechanism must also adapt to the resulting change in bending reliability; otherwise, it will affect the flexible screen's bending reliability and the user experience. Summary of the Invention

[0003] This application provides a folding device, a folding housing provided with the folding device, and an electronic device provided with the folding housing.

[0004] This application provides a folding device, which includes a base, a rotating mechanism, and a supporting mechanism. The rotating mechanism includes a first rotating member and a second rotating member. The first rotating member is rotatably connected to one side of the base, and the second rotating member is rotatably connected to the opposite side of the base. A first axis of rotation of the first rotating member relative to the base is parallel to a second axis of rotation of the second rotating member relative to the base. The supporting mechanism includes an intermediate supporting member. The first rotating member is rotatably connected to one side of the intermediate supporting member via a cam, and the second rotating member is rotatably connected to the opposite side of the intermediate supporting member. When the folding device is in a flattened state, the front surface of the intermediate supporting member is parallel to the plane containing the first and second axes. When the folding device is in a folded state, the front surface of the intermediate supporting member is inclined to the plane containing the first and second axes.

[0005] This application also provides a folding housing, comprising a folding device and frames respectively disposed on opposite sides of the folding device. The folding device includes a base, a rotating mechanism, and a supporting mechanism. The rotating mechanism includes a first rotating member and a second rotating member. The first rotating member is rotatably connected to one side of the base, and the second rotating member is rotatably connected to the opposite side of the base. A first axis of rotation of the first rotating member relative to the base is parallel to a second axis of rotation of the second rotating member relative to the base. The supporting mechanism includes an intermediate supporting member. The first rotating member is rotatably connected to one side of the intermediate supporting member via a cam, and the second rotating member is rotatably connected to the opposite side of the intermediate supporting member. When the folding device is in a flattened state, the front surface of the intermediate supporting member is parallel to the plane containing the first and second axes. When the folding device is in a folded state, the front surface of the intermediate supporting member is inclined to the plane containing the first and second axes. A first connecting member of the folding device is connected to one of the frames, and a second connecting member of the folding device is connected to the other frame.

[0006] This application also provides an electronic device, comprising a flexible screen and a foldable housing. The flexible screen includes a bendable area and non-bendable areas respectively disposed on opposite sides of the bendable area. The foldable housing includes a folding device and frames respectively disposed on opposite sides of the folding device. The folding device includes a base, a rotating mechanism, and a supporting mechanism. The rotating mechanism includes a first rotating member and a second rotating member. The first rotating member is rotatably connected to one side of the base, and the second rotating member is rotatably connected to the opposite side of the base. A first axis of rotation of the first rotating member relative to the base is parallel to a second axis of rotation of the second rotating member relative to the base. The supporting mechanism includes an intermediate supporting member, and the first rotating member and the... One side of the intermediate support member is rotatably connected via a cam, and the second rotating member is rotatably connected to the opposite side of the intermediate support member; when the folding device is in a flattened state, the front of the intermediate support member is parallel to the plane containing the first axis and the second axis; when the folding device is in a folded state, the front of the intermediate support member is inclined to the plane containing the first axis and the second axis; the first connecting member of the folding device is connected to one of the frames, the second connecting member of the folding device is connected to the other frame, the bendable area faces the front of the folding device, one non-bendable area is connected to the front of one of the frames, and the other non-bendable area is connected to the front of the other frame.

[0007] The first and second rotating members on opposite sides of the base of the folding device of the present invention are asymmetrical mechanisms. When the folding device is in a folded state, the middle support member is in an inclined state and abuts against the back of the bendable area of ​​the flexible screen, so that the folding device can adapt to the asymmetrical shape of the flexible screen in the folded state, improve the stress and deformation uniformity of the flexible screen during the folding process of the electronic device, and thus improve the reliability of the flexible screen. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a three-dimensional structural diagram of the electronic device in the first embodiment of this application;

[0010] Figure 2 yes Figure 1 A three-dimensional exploded view of the electronic equipment in the diagram;

[0011] Figure 3 yes Figure 2 A three-dimensional structural breakdown diagram of electronic devices from another perspective;

[0012] Figure 4 yes Figure 2 An exploded view of the three-dimensional structure of the folded shell in the diagram;

[0013] Figure 5 yes Figure 4 A three-dimensional structural exploded diagram of the folded shell from another perspective;

[0014] Figure 6 yes Figure 4 An exploded view of the three-dimensional structure of the folding device in the diagram;

[0015] Figure 7 yes Figure 6 A three-dimensional exploded view of the folding device from another perspective;

[0016] Figure 8 yes Figure 6 A further exploded three-dimensional structural diagram of the folding device in the diagram;

[0017] Figure 9 yes Figure 8 A three-dimensional exploded view of the folding device from another perspective;

[0018] Figure 10 yes Figure 8A further exploded three-dimensional structural diagram of the folding device in the diagram;

[0019] Figure 11 yes Figure 9 A further exploded three-dimensional structural diagram of the folding device in the diagram;

[0020] Figure 12 yes Figure 2 A schematic diagram of the side structure of the folding shell in the diagram;

[0021] Figure 13 yes Figure 2 One of the perspective sectional views of the folded shell in the image;

[0022] Figure 14 yes Figure 13 A partial cross-sectional view of the folded shell in the middle;

[0023] Figure 15 yes Figure 14 An enlarged view of the XV portion;

[0024] Figure 16 yes Figure 2 Another perspective sectional view of the folded shell in the middle;

[0025] Figure 17 yes Figure 16 A partial cross-sectional view of the folded shell in the middle;

[0026] Figure 18 yes Figure 2 Another three-dimensional sectional view of the folded shell in the image;

[0027] Figure 19 yes Figure 18 A partial cross-sectional view of the folded shell in the middle;

[0028] Figure 20 yes Figure 1 A three-dimensional structural diagram of the folded state of electronic devices in the image;

[0029] Figure 21 yes Figure 20 A three-dimensional exploded view of the electronic equipment in the diagram;

[0030] Figure 22 yes Figure 21 Enlarged 3D structure diagram of the folding device and flexible screen in the image;

[0031] Figure 23 yes Figure 20 A schematic diagram of the side structure of the electronic device in the diagram;

[0032] Figure 24 yes Figure 20 A three-dimensional sectional view of one of the electronic devices in the image;

[0033] Figure 25 yes Figure 24 A partial cross-sectional view of the electronic equipment in the document;

[0034] Figure 26 yes Figure 25 An enlarged view of section XXVI;

[0035] Figure 27 yes Figure 20 A schematic diagram illustrating the support principle of the intermediate support component in electronic devices.

[0036] Figure 28 yes Figure 20 Another three-dimensional sectional view of the electronic equipment in the picture;

[0037] Figure 29 yes Figure 28 A partial cross-sectional view of the electronic equipment in the document;

[0038] Figure 30 yes Figure 20 Another three-dimensional sectional view of the electronic equipment in the picture;

[0039] Figure 31 yes Figure 30 A partial cross-sectional view of the electronic equipment in the document;

[0040] Figure 32 This is a schematic diagram of the support principle of the intermediate support component of the electronic device in the second embodiment of this application;

[0041] Figure 33 yes Figure 32 A schematic diagram of the intermediate support component and flexible screen of the electronic device in the diagram;

[0042] Figure 34 yes Figure 32 A schematic diagram of the intermediate support component of the electronic device in its flattened state;

[0043] Figure 35 This is a schematic diagram of the support principle of the intermediate support component of the electronic device in the third embodiment of this application;

[0044] Figure 36 yes Figure 35 A schematic diagram of the intermediate support component of the electronic device in its flattened state;

[0045] Figure 37 This is a schematic diagram of the structure of the electronic device in the fourth embodiment of this application;

[0046] Figure 38 yes Figure 37 A schematic diagram of the support mechanism for electronic devices in a flattened state;

[0047] Figure 39 This is a schematic diagram of the structure of the electronic device in the fifth embodiment of this application;

[0048] Figure 40 This is a schematic diagram of the structure of the electronic device in the sixth embodiment of this application;

[0049] Figure 41 This is a schematic diagram of the electronic device in the seventh embodiment of this application.

[0050] Explanation of main labels:

[0051] 100. Electronic device; 20. Folding housing; 21. Frame; 211. First front; 212. First back; 214. First end face; 215. First side; 216. Mounting groove; 22. Folding device; 23. Base; 232. First clearance space; 2321. First shaft hole; 2323. Second shaft hole; 234. Second clearance space; 2341. Bottom surface; 2343. End face; 2345. Arc groove; 235. Receiving space; 2352. Step; 236. Through hole; 237. Positioning strip; 24. Rotating mechanism; 240. First rotating component; 2401. Cam; 241. First rotating part; 2412. First rotating cylinder; 2414. First rotating cylinder; 2415. First sliding part 2416, First connecting plate; 2417, First guide rail; 2418, First adjusting shaft; 242, First rotating shaft; 245, Second rotating component; 2455, Second sliding part; 2456, Second connecting plate; 2457, Second guide rail; 2458, Second adjusting shaft; 246, Second rotating part; 2462, Second rotating cylinder; 2464, Second rotating cylinder; 247, Second rotating shaft; 25, Rotation aid assembly; 251, First connecting component; 2511, First guide groove; 2512, First sliding space; 2514, First rotation space; 253, Second connecting component; 2531, Second guide groove; 2532, Second sliding space; 2534, Second rotation space; 255, First rotation aid component; 255 1. Third rotating part; 2553. First rotating part; 257. Second rotating auxiliary part; 2571. Fourth rotating part; 2573. Second rotating part; 26. Support mechanism; 262. Intermediate support member; 2621. Intermediate support plate; 2622. Front side; 2624. First connecting part; 2625. Second connecting part; 2626. Connecting groove; 2626a. Inner top surface; 2626b. Inner side surface; 2627. Rotating hole; 2628. Locking hole; 264. First side support member; 2641. First side support plate; 2643. First arc-shaped block; 2644. First arc groove; 2646. First adjusting block; 2647. First adjusting groove; 2647a. First end; 2647b. Second end; 265 1. First support plate; 2653. Second support plate; 2654. Connecting shaft; 266. Second side support member; 2661. Second side support plate; 2663. Second arc-shaped block; 2664. Second arc groove; 2666. Second adjusting block; 2667. Second adjusting groove; 2667a. Third end; 2667b. Fourth end; 27. Back shell; 272. Back plate; 274. Side plate; 275. Positioning groove; 28. Reset mechanism; 282. Locking member; 2821. Connecting rod; 2823. Protruding cover; 284. Elastic member; 285. First fixed end; 286. Second fixed end; 30. Flexible screen; 31. Bendable area; 33. Non-bendable area; 35. First bendable area; 36. First non-bendable area. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Furthermore, the following descriptions of various embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments that can be implemented in this application. Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying illustrations. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and are not intended to indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] Please refer to the following: Figures 1 to 3 The electronic device 100 in the first embodiment of the present invention includes a folding housing 20 and a flexible screen 30 disposed on the folding housing 20. The folding housing 20 includes a folding device 22 and frames 21 respectively disposed on opposite sides of the folding device 22. That is, the folding device 22 is located between the two frames 21. One side of the folding device 22 is connected to one of the frames 21, and the opposite side of the folding device 22 is connected to the other frame 21. The folding device 22 is an asymmetrical pivot mechanism. The flexible screen 30 includes a bendable area 31 and frames 30 respectively disposed on opposite sides of the bendable area 31. The non-bending areas 33 on both sides, that is, the bendable areas 31, are located between the two non-bending areas 33. When the flexible screen 30 covers the front of the folding housing 20, the bendable area 31 faces the front of the folding device 22. One non-bending area 33 is connected to the front of one of the frames 21, and the other non-bending area 33 is connected to the front of the other frame 21. The bendable area 31 of the flexible screen 30 can be bent or flattened with the folding device 22. When the electronic device 100 is in a folded state, the folding device 22 is in a folded state, and the bendable area 31 is in an asymmetrical bending state.

[0056] like Figure 4 and Figure 5 As shown, the frame 21 includes a first front face 211, a first back face 212, two opposing first end faces 214, and two opposing first side faces 215. The first front face 211 has a mounting groove 216 on the side near the folding device 22. The opposite ends of the mounting groove 216 extend to the two first end faces 214 respectively. One side of the mounting groove 216 passes through the first side face 215 of the folding device 22. One side of the folding device 22 is fixedly connected to the mounting groove 216 of one of the frames 21, and the opposite other side of the folding device 22 is fixedly connected to the mounting groove 216 of the other frame 21.

[0057] like Figures 6-9 As shown, the folding device 22 includes a base 23, a rotating mechanism 24, a rotation aid assembly 25, a support mechanism 26, and a back shell 27. The rotating mechanism 24 includes a first rotating member 240 and a second rotating member 245. The first rotating member 240 is rotatably connected to one side of the base 23, and the second rotating member 245 is rotatably connected to the opposite side of the base 23. The first axis L1 of the first rotating member 240 relative to the base 23 is parallel to the second axis L2 of the second rotating member 245 relative to the base 23. The first rotating member 240 and the second rotating member 245 are asymmetrically arranged; the support mechanism 26 includes a middle support member 262, a first side support member 264 and a second side support member 266. The first rotating member 240 is rotatably connected to one side of the middle support member 262 via a cam 2401, and the second rotating member 245 is rotatably connected to the opposite side of the middle support member 262; the first side support member 264 and the second side support member 266 are respectively located on opposite sides of the base 23, and the first side support member 244 and the second side support member 266 are respectively located on opposite sides of the base 23. A rotating member 240 is located on the same side of the base 23, and a second side support member 266 and a second rotating member 245 are also located on the same side of the base 23. When the folding device 22 is in a flattened state, the front of the intermediate support member 262 is parallel to the plane containing the first axis L1 and the second axis L2. The front of the intermediate support member 262, the front of the first side support member 264, and the front of the second side support member 266 are coplanar, and the back of the bendable area 31 is in contact with the front of the first side support member 264 and the intermediate support member 265. The front of the middle support 262 and the front of the second side support 266; when the folding device 22 is in the folded state, the front of the middle support 262 is inclined to the plane where the first axis L1 and the second axis L2 are located; the front of the first side support 264, the front of the middle support 262 and the front of the second side support 266 form a teardrop-shaped receiving space, the bendable area 31 is in an asymmetrical bend and is accommodated in the receiving space, and the front of the middle support 262 abuts against the back of the bendable area 31.

[0058] It is understood that the "front" refers to the side facing the same direction as the light-emitting surface of the flexible screen 30, and the "back" refers to the side facing away from the light-emitting surface of the flexible screen 30. The flexible screen 30 can be, but is not limited to, flexible displays, flexible touch screens, flexible touch displays, and other flexible components with corresponding functions, or it can be a flexible component fixedly attached to a flexible support plate, such as a flexible display or flexible touch screen attached to a flexible steel plate. The electronic device 100 can be a mobile phone, tablet, or computer, or it can be used on other non-electronic products that require the folding device 22. Electronic devices such as batteries, PCB assemblies, speakers, earpieces, cameras, or buttons can be placed inside the frame 21. The electronic devices in the two frames 21 are electrically connected through a flexible circuit board passing through the folding device 22. In the description of the embodiments of the present invention, "connection" includes both direct connection and indirect connection. For example, the connection between A and B includes a direct connection between A and B or a connection through a third element C or more other elements. The connection also includes two cases: integrated connection and non-integrated connection. Integrated connection means that A and B are formed and connected as one piece, and non-integrated connection means that A and B are not formed and connected as one piece.

[0059] The first rotating member 240 and the second rotating member 245 on opposite sides of the base 23 of the folding device 22 of the present invention are asymmetrical mechanisms. When the folding device 22 is in a folded state, the bendable area 31 is in an asymmetrical bending state, and the middle support member 262 is in an inclined state and abuts against the back of the bendable area 31, so that the folding device 22 can adapt to the asymmetrical shape of the flexible screen 30 in the folded state, improve the uniformity of the force and deformation of the flexible screen 30 during the folding process of the electronic device 100, and make the movement of the folding device 22 conform to the bending movement force and deformation trend of the flexible screen 30, so as to meet the need of the folding device 22 to ensure the reliability of the bending movement of the flexible screen 30, thereby improving the reliability of the electronic device 100.

[0060] like Figures 10-11As shown, the intermediate support member 262 includes an intermediate support plate 2621, a first connecting portion 2624 disposed on one side of the back surface 2623 of the intermediate support plate 2621, and a second connecting portion 2625 disposed on the opposite side of the back surface 2623 of the intermediate support plate 2621; the first rotating member 240 includes a first rotating portion 241, which can rotate about a first axis L1 relative to the first connecting portion 2624; the second rotating member 245 includes a second rotating portion 246, which can rotate about a second axis L2 relative to the second connecting portion 2625; at least one of the first connecting portion 2624 and the first rotating portion 241 is provided with a cam 2401; the first rotating portion 241 rotates relative to the first connecting portion 2624, and the cam 2401 rolls against the intermediate support plate 2621 to rotate about the second axis L2, so that the front surface 2622 of the intermediate support plate 2621 is inclined or parallel to the plane where the first axis L1 and the second axis L2 are located. Specifically, during the process of folding the folding device 22 from the flattened state to the fully folded state, the front surface 2622 of the intermediate support plate 2621 changes from a horizontal state parallel to the plane containing the first axis L1 and the second axis L2 to an inclined state relative to the plane containing the first axis L1 and the second axis L2; ​​during the process of folding the folding device 22 from the fully folded state to the flattened state, the front surface 2622 of the intermediate support plate 2621 changes from an inclined state relative to the plane containing the first axis L1 and the second axis L2 to a parallel state relative to the plane containing the first axis L1 and the second axis L2.

[0061] Optionally, the first connecting part 2624 is provided with a connecting groove 2626. In this embodiment, the connecting groove 2626 is located on the side of the first connecting part 2624 away from the intermediate support plate 2621. The first rotating part 241 includes a first rotating cylinder 2412 rotatably housed in the connecting groove 2626 and a first rotating cylinder 2414 connected to one end of the first rotating cylinder 2412. The first rotating cylinder 2412 and the first rotating cylinder 2414 are coaxial. The outer diameter of the first rotating cylinder 2412 is smaller than the outer diameter of the first rotating cylinder 2414. The cam 2401 is provided on the outer wall of the first rotating cylinder 2412. When the first rotating part 241 rotates relative to the base 23, the cam 2401 rolls against the inner surface of the connecting groove 2626. The axis of the first rotating cylinder 2412 is collinear with the first axis L1. As the arm length of the cam 2401 changes during its rotation relative to the intermediate support member 262, the intermediate support member 262 is driven to rotate around the second axis, causing the end of the intermediate support member 262 with the first connecting part 2624 to gradually and controllably change in the thickness direction of the folding device 22 with respect to the curvature of the cam and the arm length. The second connecting part 2625 is provided with a rotating hole 2627 along the second axis L2. The second rotating part 246 includes a second rotating cylinder 2462 rotatably inserted into the rotating hole 2627, and a second rotating cylinder 2464 connected to one end of the second rotating cylinder 2462. The second rotating cylinder 2462 and the second rotating cylinder 2464 are coaxial, and the outer diameter of the second rotating cylinder 2462 is smaller than the outer diameter of the second rotating cylinder 2464. When the second rotating cylinder 2462 is inserted into the rotating hole 2627, the axis of the second rotating cylinder 2462 is collinear with the second axis L2, and the second rotating cylinder 2462 can rotate in the rotating hole 2627. The intermediate support member 262 and the second rotating part 246 rotate around the same axis. Therefore, the intermediate support member 262 does not produce a change in the thickness direction of the folding device 22. A locking hole 2628 is provided on the back of the intermediate support plate 2621.

[0062] In other embodiments, a cam is provided on the first connecting part 2624. When the first rotating part 241 rotates relative to the first connecting part 2624 about the first axis, the first rotating part 241 rotatably pushes against the cam. Due to the change in the arm length of the cam during rotation, the intermediate support member 262 is driven to rotate about the second axis, so that the intermediate support member 262 gradually and controllably changes in the thickness direction of the folding device 22 with the curvature of the cam and the arm length. When the folding device 22 is in a flattened state, the front of the intermediate support plate 2621 is parallel to the plane where the first axis L1 and the second axis L2 are located. The front of the intermediate support plate 2621, the front of the first side support member 264, and the front of the second side support member 266 are coplanar. When the folding device 22 is in a folded state, the front of the intermediate support plate 2621 is inclined to the plane where the first axis L1 and the second axis L2 are located.

[0063] In other embodiments, a first cam is provided on the first connecting part 2624, and a second cam is provided on the first rotating part 241. When the first rotating part 241 rotates relative to the first connecting part 2624 about the first axis, the second cam of the first rotating part 241 rolls against the first cam, causing the intermediate support member 262 to rotate about the second axis. When the folding device 22 is in a flattened state, the front of the intermediate support plate 2621 is parallel to the plane containing the first axis L1 and the second axis L2. The front of the intermediate support plate 2621, the front of the first side support member 264, and the front of the second side support member 266 are coplanar. When the folding device 22 is in a folded state, the front of the intermediate support plate 2621 is inclined to the plane containing the first axis L1 and the second axis L2.

[0064] Specifically, the first connecting part 2624 is a rectangular piece, and the connecting groove 2626 is provided on the side of the rectangular piece away from the middle support plate 2621. The connecting groove 2626 includes an inner top surface 2626a and inner side surfaces 2626b connected to opposite sides of the inner top surface 2626a. The inner top surface 2626a is parallel to the front surface 2622 of the middle support plate 2621. When the folding device 22 is in a folded state, the cam 2401 abuts against the inner top surface 2626a. When the folding device 22 is in a flattened state, the cam 2401 faces one of the inner side surfaces 2626b.

[0065] Optionally, the first rotating part 241 is rotatably connected to one side of the base 23 via the first rotating shaft 242, and the second rotating part 246 is rotatably connected to the opposite side of the base 23 via the second rotating shaft 247. Specifically, a first clearance space 232 is provided at one end of the front of the base 23, and the opposite sides of the first clearance space 232 pass through the opposite sides of the base 23. The opposite ends of the inner side of the first clearance space 232 of the base 23 are respectively provided with a first shaft hole 2321 and a second shaft hole 2323. The axis of the first shaft hole 2321 is parallel to the axis of the second shaft hole 2323. The first rotating shaft 242 is inserted into the first shaft hole 2321, and the second rotating shaft 247 is inserted into the second shaft hole 2323.

[0066] like Figure 10 and Figure 11As shown, on the front side of the base 23 away from the first clearance space 232, there are two second clearance spaces 234 on opposite sides. The two second clearance spaces 234 face each other along the width direction of the base 23 and are connected to each other. One side of the second clearance space 234 away from the other second clearance space 234 passes through the corresponding side of the base 23. One end of the rotating component 25 is rotatably housed in one of the second clearance spaces 234, and one end of the other rotating component 25 is rotatably housed in the other second clearance space 234. The second clearance space 234 includes a bottom surface 2341 and two end surfaces 2343 connected to the opposite ends of the bottom surface 2341. The bottom surface 2341 and the two end surfaces 2343 together form the second clearance space 234. In this embodiment, the base 23 is provided with arc grooves 2345 on the two end faces 2343 of each second clearance space 234. The opposite ends of the arc grooves 2345 pass through the front of the base 23. The two adjacent ends of the two arc grooves 2345 at the same end of the two second clearance spaces 234 are interconnected. The arc grooves 2345 at opposite ends of the same second clearance space 234 are coaxial. The side of the base 23 away from the intermediate support member 262 is provided with a receiving space 235. In this embodiment, the receiving space 235 is located on the back of the base 23 between the first clearance space 232 and the second clearance space 234. One end of the receiving space 235 extends to the front of the base 23. The side of the base 23 facing the intermediate support member 262 is provided with a through hole 236, which connects to the receiving space 235. In this embodiment, the through hole 236 is located on the front of the base 23 between the first clearance space 232 and the second clearance space 234. The inner diameter of the through hole 236 is smaller than the inner diameter of the receiving space 235, and the base 23 forms a step 2352 between the through hole 236 and the receiving space 235. Positioning strips 237 are provided on opposite sides of the back of the base 23, and the two positioning strips 237 are used to position the back shell 27.

[0067] like Figure 10 and Figure 11As shown, the first rotating member 240 further includes a first sliding portion 2415 and a first connecting plate 2416 connecting the first sliding portion 2415 and the first rotating portion 241. In this embodiment, the first connecting plate 2416 is a first connecting piece, one end of which is connected to the outer peripheral wall of the first rotating cylinder 2414, and the other end of which is connected to the first sliding portion 2415. The first sliding portion 2415 is a first sliding piece, which is perpendicular to the first connecting piece. First guide rails 2417 are respectively provided on opposite sides of the first sliding portion 2415, and the sliding direction of the first guide rails 2417 is perpendicular to the axis of the first rotating cylinder 2414. A first adjusting shaft 2418 is provided on one side of the first sliding portion 2415, and the axis of the first rotating cylinder 2414 is parallel to the axis of the first adjusting shaft 2418. The second rotating component 245 further includes a second sliding portion 2455 and a second connecting plate 2456 connecting the second sliding portion 2455 and the second rotating portion 246. In this embodiment, the second connecting plate 2456 is a second connecting piece, one end of which is connected to the outer peripheral wall of the second rotating cylinder 2464, and the other end of which is connected to the second sliding portion 2455. The second sliding portion 2455 is a second sliding piece, which is perpendicular to the second connecting piece. Second guide rails 2457 are respectively provided on opposite sides of the second sliding portion 2455, and the sliding direction of the second guide rails 2457 is perpendicular to the axis of the second rotating cylinder 2464. A second adjusting shaft 2458 is provided on one side of the second sliding portion 2455, and the axis of the second rotating cylinder 2464 is parallel to the axis of the second adjusting shaft 2458.

[0068] like Figures 10-11As shown, the rotation aid assembly 25 includes a first connector 251, a second connector 253, a first rotation aid 255, and a second rotation aid 257. The first connector 251 and the second connector 253 are located on opposite sides of the base 23, and the first connector 251 and the first rotating member 240 are located on the same side of the base 23. The end of the first rotating member 240 away from the base 23 is connected to the first connector 251 through a first guide groove 2511 and a first guide rail 2417. The second connector 253 and the second rotating member 245 are located on the same side of the base 23, and the end of the second rotating member 245 away from the base 23 is connected to the second connector 253 through a second guide groove 2531 and a second guide rail 2457. In this embodiment, a first sliding space 2512 is provided at one end of the front side of the first connector 251. The opposite sides of the first sliding space 2512 pass through the opposite sides of the first connector 251. The first connector 251 is provided with a first guide groove 2511 at the opposite end faces of the first sliding space 2512. The two first guide grooves 2511 are parallel to each other. The two first guide rails 2417 of the first rotating member 240 are slidably accommodated in the two first guide grooves 2511. A second sliding space 2532 is provided at one end of the second connector 253. The opposite sides of the second sliding space 2532 pass through the opposite sides of the second connector 253. The second connector 253 is provided with a second guide groove 2531 at the opposite end faces of the second sliding space 2532. The two second guide grooves 2531 are parallel to each other. The two second guide rails 2457 of the second rotating member 245 are slidably accommodated in the two second guide grooves 2531.

[0069] In other embodiments, the first sliding part 2415 is provided with first guide grooves on its opposite sides, and the first connector 251 is provided with first guide rails on its opposite end faces of the first sliding space 2512. The two first guide rails are slidably accommodated in the two first guide grooves. The second sliding part 2455 is provided with second guide grooves on its opposite sides, and the second connector 253 is provided with second guide rails on its opposite end faces of the second sliding space 2532. The two second guide rails are slidably accommodated in the two second guide grooves.

[0070] The first auxiliary rotating component 255 is rotatably connected to one side of the base 23 through the cooperation of the arc groove and the arc rail. The second auxiliary rotating component 257 is rotatably connected to the opposite side of the base 23 through the cooperation of the arc groove and the arc rail. The end of the first auxiliary rotating component 255 away from the base 23 is rotatably connected to the first connecting component 251. The end of the second auxiliary rotating component 257 away from the base 23 is rotatably connected to the second connecting component 253. Specifically, the first rotating aid 255 includes a third rotating part 2551 and a first rotating part 2553 located at opposite ends of the first rotating aid 2555. The third rotating part 2551 is rotatably accommodated in one of the second clearance spaces 234 of the base 23, and the first rotating part 2553 is rotatably connected to the end of the first connecting member 251 away from the first sliding space 2512. The second rotating aid 257 includes a fourth rotating part 2571 and a second rotating part 2573 located at opposite ends of the second rotating aid 2575. The fourth rotating part 2571 is rotatably accommodated in another second clearance space 234 of the base 23, and the second rotating part 2573 is rotatably connected to the end of the second connecting member 253 away from the second sliding space 2532. In this embodiment, the third rotating part 2551 has arc-shaped rails at its opposite ends, and the third rotating part 2551 is housed in one of the second clearance spaces 234. The two arc-shaped rails are rotatably housed in the corresponding two arc-shaped grooves 2345. The fourth rotating part 2571 has arc-shaped rails at its opposite ends, and the fourth rotating part 2571 is housed in another second clearance space 234. The two arc-shaped rails are rotatably housed in the corresponding two arc-shaped grooves 2345. The first rotating part 2553 is connected to the first connecting member 251 via a first shaft. Specifically, the first rotating member 251 has a first rotating space 2514 at the end of its front surface away from the first sliding space 2512. The first rotating part 2553 is a first rotating cylinder, which is rotatably housed in the first rotating space 2514 via a first shaft. The second rotating part 2573 is connected to the second connecting member 253 via a second shaft. Specifically, a second rotation space 2534 is provided at the end of the front of the second connector 253 away from the second sliding space 2532, and the second rotating part 2573 is a second rotating cylinder, which is rotatably housed in the second rotation space 2534 via a second shaft.

[0071] In other embodiments, the third rotating part 2551 is provided with arc grooves at its opposite ends, and the opposite end faces of the second clearance space 234 of the base 23 are provided with arc rails. When the third rotating part 2551 is accommodated in one of the second clearance spaces 234, the two arc rails are rotatably accommodated in the corresponding two arc grooves 2345. The fourth rotating part 2571 is provided with arc grooves at its opposite ends, and the opposite end faces of the second clearance space 234 of the base 23 are provided with arc rails. When the fourth rotating part 2571 is accommodated in another second clearance space 234, the two arc rails are rotatably accommodated in the corresponding two arc grooves 2345.

[0072] like Figures 10-11 As shown, the first side support 264 and the first connector 251 are connected by a first arcuate groove and a first arcuate rail. The first arcuate groove is provided in one of the first side support 264 and the first connector 251, and the first arcuate rail is provided in the other of the first side support 264 and the first connector 251. In this embodiment, the first side support 264 includes a first side support plate 2641 and a first arcuate block 2643 provided at least one end of the back of the first side support plate 2641. The first arcuate block 2643 has a first arcuate groove 2644 on one side, and the first connector 251 has a first arcuate rail 2515 at at least one end. The first arcuate rail 2515 is rotatably accommodated in the first arcuate groove 2644, and the axis of the first arcuate rail 2515 is parallel to the first axis L1.

[0073] In other embodiments, the first arc block 2643 is provided with a first arc track, and one end of the first connector 251 is provided with a first arc groove corresponding to the first arc track, the first arc track being rotatably accommodated in the first arc groove.

[0074] In other embodiments, the back of the first side support plate 2641 is provided with first arc-shaped blocks 2643 at opposite ends, each first arc-shaped block 2643 is provided with a first arc groove, and the opposite ends of the first connector 251 are provided with first arc-shaped rails, and the two first arc-shaped rails are rotatably accommodated in the two first arc grooves.

[0075] The second side support 266 and the second connector 253 are connected by a second arcuate groove and a second arcuate rail. The second arcuate groove is provided in one of the second side support 266 and the second connector 253, and the second arcuate rail is provided in the other of the second side support 266 and the second connector 253. In this embodiment, the second side support 266 includes a second side support plate 2661 and a second arcuate block 2663 provided at least one end of the back of the second side support plate 2661. A second arcuate groove 2664 is provided on one side of the second arcuate block 2663, and a second arcuate rail 2535 is provided at least one end of the second connector 253. The second arcuate rail 2535 is rotatably accommodated in the second arcuate groove 2664, and the axis of the second arcuate rail 2535 is parallel to the first axis L1.

[0076] In other embodiments, the second arc block 2663 is provided with a second arc track, and one end of the second connector 253 is provided with a second arc groove corresponding to the second arc track, the second arc track being rotatably accommodated in the second arc groove.

[0077] In other embodiments, the back of the second side support plate 2661 is provided with second arc-shaped blocks 2663 at opposite ends, each second arc-shaped block 2663 is provided with a second arc groove, and the opposite ends of the second connector 253 are provided with second arc-shaped rails, and the two second arc-shaped rails are rotatably accommodated in the two second arc grooves.

[0078] The first side support 264 and the first rotating member 240 are connected by a first adjusting groove and a first adjusting shaft. The axis of the first adjusting shaft is parallel to the first axis L1. The first adjusting groove is provided in one of the first side support 264 and the first rotating member 240, and the first adjusting shaft is provided in the other of the first side support 264 and the first rotating member 240. Specifically, the first side support 264 also includes a first adjusting block 2646 provided on the back of the first side support plate 2641. The first adjusting block 2646 is close to the first arc-shaped block 2643. The first adjusting block 2646 is provided with a first adjusting groove 2647. The first adjusting shaft 2418 on the first rotating member 240 is slidably and rotatably accommodated in the first adjusting groove 2647. The first adjustment groove 2647 includes a first end 2647a and a second end 2647b located at opposite ends. The first end 2647a is further away from the intermediate support member 262 than the second end 2647b. The second side support member 266 and the second rotating member 245 are connected by the second adjustment groove and the second adjustment shaft 2458. The axis of the second adjustment shaft is parallel to the first axis L1. The second adjustment groove is provided in one of the second side support member 266 and the second rotating member 245, and the second adjustment shaft is provided in the other of the second side support member 266 and the second rotating member 245. Specifically, the second side support member 266 also includes a second adjustment block 2666 provided on the back of the second side support plate 2661. The second adjustment block 2666 is close to the second arc-shaped block 2663. The second adjustment block 2666 is provided with a second adjustment groove 2667. The second adjustment shaft 2458 on the second rotating member 245 is slidably and rotatably accommodated in the second adjustment groove 2667. The second adjustment groove 2667 includes a third end 2667a and a fourth end 2667b located at opposite ends, with the third end 2667a further away from the intermediate support member 262 than the fourth end 2667b. When the folding device 22 is in a flattened state, the first adjustment shaft 2418 is positioned at the first end 2647a, and the second adjustment shaft 2458 is positioned at the third end 2667a; when the folding device 22 is in a folded state, the first adjustment shaft 2418 is positioned at the second end 2647b, and the second adjustment shaft 2458 is positioned at the fourth end 2667b. The back shell 27 includes a rectangular back plate 272 and two side plates 274 located on opposite sides of the back plate 272, forming a positioning groove 275.

[0079] like Figure 10 and Figure 11As shown, the folding device 22 also includes a reset mechanism 28, which is connected between the intermediate support member 262 and the base 23. The reset mechanism 28 has a force that drives the intermediate support member 262 closer to the base 23. Specifically, the reset mechanism 28 is housed in the receiving space 235. The reset mechanism 28 includes a locking member 282 and an elastic member 284. The locking member 282 passes through the base 23 and is connected to the intermediate support member 262. The elastic member 284 elastically abuts against the locking member 282 and the base 23. The locking member 282 includes a connecting rod 2821 and a convex cap 2823 located at one end of the connecting rod 2821. An elastic member 284 is sleeved on the connecting rod 2821. The end of the connecting rod 2821 away from the convex cap 2823 passes through the base 23 and is connected to the intermediate support member 262. The elastic member 284 elastically abuts against the convex cap 2823 and the base 23 around the through hole 236. That is, the elastic member 284 elastically abuts against the convex cap 2823 and the step 2352. Specifically, one end of the elastic member 284 abuts against the convex cap 2823, and the other end of the elastic member 284 abuts against the step 2352.

[0080] Please refer to the following: Figures 6-19When assembling the folding device 22, the first rotating shaft 242 is inserted into the inner cavity of the first rotating cylinder 2412 and the inner cavity of the first rotating cylinder 2414. The first rotating part 241 of the first rotating member 240 is housed on one side of the first clearance space 232, and the opposite ends of the first rotating shaft 242 are respectively inserted into two first shaft holes 2321. The second rotating shaft 247 is inserted into the inner cavity of the second rotating cylinder 2462 and the inner cavity of the second rotating cylinder 2464. The second rotating part 246 of the second rotating member 245 is housed on the opposite side of the first clearance space 232. The two opposite ends of the second rotating shaft 247 are respectively inserted into two second shaft holes 2323; the third rotating part 2551 of the first rotating aid 255 is housed in one of the second clearance spaces 234, and the two arc tracks of the third rotating part 2551 are rotatably housed in the two arc grooves 2345 of the second clearance space 234; the fourth rotating part 2571 of the second rotating aid 257 is housed in another second clearance space 234, and the two arc tracks of the fourth rotating part 2571 are rotatably housed in the two arc grooves 2345 of the second clearance space 234. The first connector 251 is placed on one side of the base 23, so that the first sliding portion 2415 of the first rotating member 240 is slidably accommodated in the first sliding space 2512 of the first connector 251, and the two first guide rails 2417 are slidably inserted into the two first guide grooves 2511 respectively; the first rotating portion 2553 of the first rotating member 255 is rotatably connected to the first rotating space 2514 of the first connector 251 via a rotating shaft. The second connector 253 is placed on the opposite side of the base 23, so that the second sliding portion 2455 of the second rotating member 245 is slidably accommodated in the second sliding space 2532 of the second connector 253, and the two second guide rails 2457 are slidably inserted into the two second guide grooves 2531 respectively; the second rotating portion 2573 of the second rotating member 257 is rotatably connected to the second rotating space 2534 of the second connector 253 via a rotating shaft. The intermediate support 262 is placed on the front of the base 23, so that the first rotating cylinder 2412 is rotatably accommodated in the connecting groove 2626, and the second rotating cylinder 2462 is rotatably accommodated in the rotating hole 2627, with the locking hole 2628 facing the through hole 236 of the base 23; the elastic member 284 is sleeved on the connecting rod 2821, and the elastic member 284 and the locking member 282 are accommodated in the receiving space 235 of the base 23. The end of the connecting rod 2821 away from the convex cover 2823 passes through the through hole 236 and is locked in the locking hole 2628, so that the opposite ends of the elastic member 284 abut against the convex cover 2823 and the step 2352 respectively.The first side support 264 is placed on the front of the first connector 251, such that the first adjusting shaft 2418 is movably accommodated in the first adjusting groove 2647, and the first arc rail 2515 is rotatably accommodated in the first arc groove 2644 of the first side support 264. The second side support 266 is placed on the front of the second connector 253, such that the second adjusting shaft 2458 is rotatably accommodated in the second adjusting groove 2667, and the second arc rail 2535 is rotatably accommodated in the second arc groove 2664 of the second side support 266. The back cover 27 is placed on the back of the base 23, that is, the back of the base 23 is accommodated in the positioning groove 275 of the back cover 27, so that the two side plates 274 are respectively positioned in the two positioning strips 237 of the base 23.

[0081] like Figures 1-5 As shown, when assembling the folding housing 20, the assembled folding device 22 is placed between two frames 21, such that the first connector 251 on one side of the folding device 22 is accommodated in the mounting groove 216 of one of the frames 21, so that the first connector 251 is fixedly connected to the frame 21. The first connector 251 and the frame 21 can be fixedly connected by means of screwing, snap-fitting, gluing or welding. The second connector 253 on the opposite side of the folding device 22 is accommodated in the mounting groove 216 of the other frame 21, so that the second connector 253 is fixedly connected to the frame 21. The second connector 253 and the frame 21 can be fixedly connected by means of screwing, snap-fitting, gluing or welding. When assembling the electronic device 100, the two non-bending areas 33 of the flexible screen 30 are respectively connected to the first front face 211 of the two frames 21. Specifically, the opposite sides of each non-bending area 33 are respectively connected to the opposite sides of the first front face 211 of the corresponding frame 21 using adhesive. The front faces of the intermediate support 262, the first side support 264, and the second side support 266 are respectively connected to the back face of the bendable area 31 using adhesive. The adhesive can be, but is not limited to, glue or double-sided tape.

[0082] Please refer to the following: Figure 1 and Figures 12-19 When the electronic device 100 is in a flattened state, the cam 2401 of the first rotating member 240 abuts against one of the inner sides 2626b of the first connecting part 2624, the first adjusting shaft 2418 is positioned at the first end 2647a of the first adjusting groove 2647, and the second adjusting shaft 2458 is positioned at the third end 2667a of the second adjusting groove 2667; the front of the intermediate support member 262, the front of the first side support member 264, and the front of the second side support member 266 are coplanar, and the back of the bendable area 31 is attached to the front of the intermediate support member 262, the front of the first side support member 264, and the front of the second side support member 266.

[0083] Please refer to the following: Figures 20-26 When bending the electronic device 100, a bending force is applied to one of the frames 21, causing the first connector 251 connected to the frame 21 to drive the first rotating member 240 and the first auxiliary rotating member 255 to rotate relative to the base 23. Simultaneously, the first guide rail 2417 of the first rotating member 240 slides in the first guide groove 2511 relative to the first connector 251, and the first rotating part 2553 of the first auxiliary rotating member 255 rotates relative to the first connector 251. The first arc track... 2515 rotates in the first arc groove 2644 of the first side support 264, the first adjusting shaft 2418 rolls from the first end 2647a of the first adjusting groove 2647 to the second end 2647b, so that the first side support 264 folds relative to the intermediate support 262, the first rotating cylinder 2412 rotates in the connecting groove 2626, so that the cam 2401 rolls against the inner top surface 2626a, so that the intermediate support 262 rotates about the second axis L2; ​​for the other frame 2 1. Applying a bending force causes the second connecting member 253 connected to the other frame 21 to drive the second rotating member 245 and the second auxiliary rotating member 257 to rotate relative to the base 23. At the same time, the second guide rail 2457 of the second rotating member 245 slides in the second guide groove 2531 relative to the second connecting member 253, the second rotating part 2573 of the second auxiliary rotating member 257 rotates relative to the second connecting member 253, and the second arc rail 2535 rotates in the second arc groove of the second side support member 266. As the second adjusting shaft 2458 rotates from the third end 2667a to the fourth end 2667b of the second adjusting groove 2667, the second side support 266 folds relative to the middle support 262. The second rotating cylinder 2462 rotates within the rotating hole 2627, causing the front of the first side support 264, the front of the second side support 266, and the front of the middle support 262 to form a teardrop-shaped space. The bendable area 31 is bent and housed within this teardrop-shaped space. At this time, the front of the middle support 262 abuts against the arc-shaped back surface of the bendable area 31, and the front of the middle support 262 is tangent to the arc-shaped back surface of the bendable area 31.

[0084] like Figures 27-31 As shown, further, the perpendicular line passing through the tangent point between the front of the intermediate support member 262 and the back arc-shaped surface of the bendable area 31 passes through the center of the top arc-shaped surface of the bendable area 31. That is, the perpendicular line passing through the tangent point and perpendicular to the front of the intermediate support member 262 passes through the center of the top arc-shaped surface of the bendable area 31. In both the folded and flattened states of the electronic device 100, the elastic member 284 has a pulling force that moves the intermediate support member 262 toward the base 23. Therefore, the first support plate 2651 of the electronic device 100 will not wobble in either the tilted or non-tilted state, improving the reliability of the electronic device 100.

[0085] In other bending methods, the two frames 21 can be folded together simultaneously, such that the first rotating member 240 and the first auxiliary rotating member 255 on one side of the folding device 22 rotate relative to the base 23, and the second rotating member 245 and the second auxiliary rotating member 257 on the other side of the folding device 22 rotate relative to the base 23. Simultaneously, the first guide rail 2417 of the first rotating member 240 slides in the first guide groove 2511, the second guide rail 2457 of the second rotating member 245 slides in the second guide groove 2531, the first rotating part 2553 of the first auxiliary rotating member 255 rotates relative to the first connecting member 251, the second rotating part 2573 of the second auxiliary rotating member 257 rotates relative to the second connecting member 253, the first arc rail 2515 rotates in the first arc groove 2644 of the first side support member 264, and the first adjusting shaft 2418 extends from the first end 264 of the first adjusting groove 2647. 7a rolls to the second end 2647b, causing the first side support 264 to fold relative to the middle support 262. The second arc track 2535 rotates in the second arc groove 2664 of the second side support 266. The second adjusting shaft 2458 rolls from the third end 2667a of the second adjusting groove 2667 to the fourth end 2667b, causing the second side support 266 to fold relative to the middle support 262. At the same time, the first rotating cylinder 2412 rotates in the connecting groove 2626, causing the cam 2401 to roll against the inner top surface 2626a. The middle support 262 rotates around the second axis L2. The second rotating cylinder 2462 rotates relative to the second connecting part 2625, so that the front of the first side support 264, the front of the second side support 266, and the front of the middle support 262 form a teardrop-shaped space. The bendable area 31 is bent and accommodated in the teardrop-shaped space.

[0086] When the electronic device 100 is flattened, a flattening force is applied to one of the frames 21, causing the first connecting member 251 connected to the frame 21 to drive the first rotating member 240 and the first auxiliary rotating member 255 to rotate relative to the base 23 and unfold. At the same time, the first guide rail 2417 of the first rotating member 240 slides in the first guide groove 2511 relative to the first connecting member 251, and the first rotating part 2553 of the first auxiliary rotating member 255 rotates relative to the first connecting member 251. 2515 rotates within the first arcuate groove 2644 of the first side support 264, and the first adjusting shaft 2418 rolls from the second end 2647b to the first end 2647a of the first adjusting groove 2647, causing the first side support 264 to flatten relative to the intermediate support 262. The first rotating cylinder 2412 rotates within the connecting groove 2626, causing the cam 2401 to move away from the inner top surface 2626a. The elastic member 284 elastically pushes against the locking member 282, causing the intermediate support 262 to rotate around the second axis L. 2. Rotate to reset; apply a flattening force to the other frame 21, causing the second connecting member 253 connected to the other frame 21 to drive the second rotating member 245 and the second auxiliary rotating member 257 to rotate relative to the base 23. At the same time, the second guide rail 2457 of the second rotating member 245 slides in the second guide groove 2531 relative to the second connecting member 253, the second rotating part 2573 of the second auxiliary rotating member 257 rotates relative to the second connecting member 253, and the second arc rail 2535 on the second side... The second side support 266 rotates in the second arc groove 2664 of the support member 266, and the second adjusting shaft 2458 rolls from the fourth end 2667b of the second adjusting groove 2667 to the third end 2667a, so that the second side support 266 is flattened relative to the middle support 262. The second rotating cylinder 2462 rotates in the rotating hole 2627 until the front of the first side support 264, the front of the second side support 266 and the front of the middle support 262 are coplanar, so as to drive the bendable area 31 to a flattened state.

[0087] In other bending methods, the two frames 21 can be flattened simultaneously, so that the first rotating member 240 and the first auxiliary rotating member 255 on one side of the folding device 22 rotate relative to the base 23, and the second rotating member 245 and the second auxiliary rotating member 257 on the other side of the folding device 22 rotate relative to the base 23. Simultaneously, the first guide rail 2417 of the first rotating member 240 slides in the first guide groove 2511, the second guide rail 2457 of the second rotating member 245 slides in the second guide groove 2531, the first rotating part 2553 of the first auxiliary rotating member 255 rotates relative to the first connecting member 251, the second rotating part 2573 of the second auxiliary rotating member 257 rotates relative to the second connecting member 253, the first arc rail 2515 rotates in the first arc groove 2644 of the first side support member 264, and the first adjusting shaft 2418 rolls from the second end 2647b of the first adjusting groove 2647. The first end 2647a is moved to flatten the first side support 264 relative to the middle support 262. The second arc track 2535 rotates in the second arc groove 2664 of the second side support 266. The second adjusting shaft 2458 rolls from the fourth end 2667b of the second adjusting groove 2667 to the third end 2667a, so that the second side support 266 is flattened relative to the middle support 262. At the same time, the first rotating cylinder 2412 rotates in the connecting groove 2626, so that the cam 2401 moves away from the inner top surface 2626a. The elastic member 284 elastically pushes the locking member 282, so that the middle support 262 rotates around the second axis L2 and resets. The second rotating cylinder 2462 rotates relative to the second connecting part 2625, so that the front of the first side support 264, the front of the second side support 266, and the front of the middle support 262 are coplanar, so as to drive the bendable area 31 to a flattened state. When the intermediate support member 262 is tilted, the asymmetrical flexible screen 30 can be effectively supported by the intermediate support member 262 during the bending process and the folded state. Preferably, the vertical line at the support point of the intermediate support member 262 on the flexible screen 30 passes through the center of the top arc of the flexible screen 30, so that the stress and strain in the top arc area of ​​the flexible screen 30 during bending can be optimally reduced and improved.

[0088] like Figures 32-34As shown, the structure of the electronic device 100a in the second embodiment of this application is similar to that of the electronic device 100 in the first embodiment, except that the specific structure of the intermediate support member 262a in the second embodiment is different from that in the first embodiment. In the second embodiment, the intermediate support member 262a is not tilted as a whole, but rather partially tilted; specifically, the intermediate support member 262a includes a first support plate 2651, a second support plate 2653 rotatably connected to the first support plate 2651, a first connecting portion 2624 disposed on the back side of the first support plate 2651 away from the second support plate 2653, and a second connecting portion 2625 disposed on the back side of the second support plate 2653 away from the first support plate 2651; the rotation axis between the first support plate 2651 and the second support plate 2653 is parallel to the axis of the second rotating cylinder 2462. Specifically, the first support plate 2651 and the second support plate 2653 are rotatably connected by a connecting shaft 2654, the axis of which is parallel to the axis of the second rotating cylinder 2462. In this embodiment, the first rotating part 241 can rotate about a first axis relative to the first connecting part 2624, and the second rotating part 246 can rotate about a second axis relative to the second connecting part 2625. At least one of the first connecting part 2624 and the first rotating part 241 is provided with a cam 2401. When the first rotating part 241 rotates relative to the first connecting part 2624, the cam 2401 rolls against the first support plate 2651, causing it to rotate relative to the second support plate 2653. Specifically, the first connecting part 2624 has a connecting groove 2626 on one side away from the first support plate 2651. The first rotating cylinder 2412 of the first rotating part 241 is rotatably housed in the connecting groove 2626. The cam 2401 is provided on the outer wall of the first rotating cylinder 2412 and rolls against the inner surface of the connecting groove 2626. The axis of the first rotating cylinder 2412 is collinear with the first axis. The rotation axis between the first support plate 2651 and the second support plate 2653 is parallel to the first axis.

[0089] Further, the connecting groove 2626 includes an inner top surface 2626a and inner side surfaces 2626b connected to opposite sides of the inner top surface 2626a. The inner top surface 2626a is parallel to the first support plate 2651. When the electronic device 100a is in a flattened state, the cam 2401 abuts against one of the inner side surfaces 2626b, and the front surface of the first support plate 2651 is coplanar with the front surface of the second support plate 2653. When the electronic device 100a is in a folded state, the cam 2401 abuts against the inner top surface 2626a, the first support plate 2651 is inclined relative to the plane containing the first axis L1 and the second axis L2, the front surface of the first support plate 2651 abuts against the back arc surface of the bendable area 31, and the front surface of the first support plate 2651 is tangent to the back arc surface of the bendable area 31. Furthermore, the perpendicular line from the point of tangency between the front of the first support plate 2651 and the back arc-shaped surface of the bendable area 31 passes through the center of the top arc-shaped surface of the bendable area 31. Since the elastic member 284 maintains a pulling force that moves the intermediate support member 262 toward the base 23, the first support plate 2651 of the electronic device 100a will not wobble in either the tilted or non-tilted state, thus improving the reliability of the electronic device 100.

[0090] like Figure 35 and Figure 36 As shown, the structure of the electronic device 100b in the third embodiment of this application is similar to that of the electronic device 100 in the first embodiment, except that: the intermediate support member 262 in the third embodiment is driven by the first side support member 264 and the second side support member 266; the first side support member 264 and the second side support member 266 move asymmetrically relative to the intermediate support member 262 to drive the intermediate support member 262 to tilt. Specifically, the first side support member 264 is rotatably connected to one side of the intermediate support member 262, and a cam is provided between the first side support member 264 and the intermediate support member 262; the second side support member 266 is rotatably connected to the opposite side of the intermediate support member 262, and the rotation axis between the first side support member 264 and the intermediate support member 262 is parallel to the rotation axis between the second side support member 266 and the intermediate support member 262. When the electronic device 100b is in a folded state, the first side support 264 and the second side support 266 are folded relative to the intermediate support 262. The first side support 264 and the second side support 266 are asymmetrical. A cam pushes against the intermediate support 262, causing the intermediate support 262 to tilt. The front of the intermediate support 262 abuts against the back arc-shaped surface of the bendable area 31, and the front of the intermediate support 262 is tangent to the back arc-shaped surface of the bendable area 31. Furthermore, a perpendicular line passing through the point of tangency between the front of the intermediate support 262 and the back arc-shaped surface of the bendable area 31 passes through the center of the top arc-shaped surface of the bendable area 31.

[0091] like Figure 37 and Figure 38 As shown, the structure of the electronic device 100c in the fourth embodiment of this application is similar to that of the electronic device 100 in the first embodiment, except that the specific structure of the support mechanism 26a in the fourth embodiment is different from that of the support mechanism 26 in the first embodiment. In the fourth embodiment, the support mechanism 26a includes an intermediate support member 262a, a first side support member 264, and a second side support member 266. The intermediate support member 262a includes a first support plate 2651 and a second support plate 2653 rotatably connected to the first support plate 2651. One side of the first side support member 264 is rotatably connected to the side of the first support plate 2651 away from the second support plate 2653, and the second side support member 266 is rotatably connected to the side of the second support plate 2653 away from the first support plate 2651. The rotation axes between the first support plate 2651 and the second support plate 2653, the rotation axis between the first side support member 264 and the first support plate 2651, and the rotation axes between the second side support member 266 and the second support plate 2653 are parallel to each other. Specifically, the first support plate 2651 and the second support plate 2653 are rotatably connected via a connecting shaft 2654, the first side support member 264 is connected to the first support plate 2651 via a rotating shaft, and the second side support member 266 is connected to the second support plate 2653 via a rotating shaft. In this embodiment, the first side support member 264 and the second side support member 266 move asymmetrically relative to the intermediate support member 262a. The second support plate 2653 is fixed to the base. During the rotation of the second side support member 266 relative to the second support plate 2653, the thickness direction of the second support plate 2653 relative to the base remains unchanged. During the rotation of the first side support member 264 relative to the first support plate 2651, the first side support member 264 can drive the first support plate 2651 to tilt relative to the second support plate 2653.

[0092] Specifically, a cam is provided between the first side support member 264 and the first support plate 2651. When the electronic device 100c is in a folded state, the first side support member 264 and the second side support member 266 are folded relative to the intermediate support member 262a. The first side support member 264 and the second side support member 266 are asymmetrical. The cam pushes the first support plate 2651 at an angle relative to the second support plate 2653. The front of the first support plate 2651 abuts against the back arc-shaped surface of the bendable area 31, and the front of the first support plate 2651 is tangent to the back arc-shaped surface of the bendable area 31. Furthermore, the perpendicular line passing through the point of tangency between the front of the first support plate 2651 and the back arc-shaped surface of the bendable area 31 passes through the center of the top arc-shaped surface of the bendable area 31. When the electronic device 100c is in a flattened state, the first support plate 2651 is flattened relative to the second support plate 2653, the first side support member 264 is flattened relative to the first support plate 2651, the second side support member 266 is flattened relative to the second support plate 2653, and the flexible screen 30 is flattened and attached to the front of the support mechanism 26a.

[0093] like Figure 39 As shown, the structure of the electronic device 100d in the fifth embodiment of this application is similar to that of the electronic device 100 in the first embodiment. The difference lies in the structure of the reset mechanism 28a of the electronic device 100d in the fifth embodiment, which differs from the structure of the reset mechanism 28 of the electronic device 100 in the first embodiment. Specifically, the reset mechanism 28a in the fifth embodiment includes a tension spring, which includes a first fixed end 285 and a second fixed end 286. The first fixed end 285 and the second fixed end 286 are located at opposite ends of the tension spring. The first fixed end 285 is connected to the first connecting part 2624, and the second fixed end 286 is connected to the base 23. The tension spring has a spring force that pulls the intermediate support 262 to rotate around the second rotating cylinder 2462 toward the first rotating cylinder 2412. In this embodiment, replacing the reset mechanism 28 in the first embodiment with a simple tension spring not only simplifies the structure and reduces manufacturing costs, but also optimizes the space occupied by the tension spring, which is beneficial for the layout of other components.

[0094] like Figure 40As shown, the structure of the electronic device 100f in the sixth embodiment of this application is similar to that of the electronic device 100 in the first embodiment. The difference is that the folding shell of the electronic device 100f in the sixth embodiment is a double-folding shell, that is, the folding shell is based on the folding shell of the electronic device 100 in the first embodiment with the addition of a second frame and a pivot mechanism connecting the second frame and one of the frames 21. The second frame can be folded outward or flattened relative to the one of the frames 21 through the pivot mechanism. The flexible screen of the electronic device 100f in the sixth embodiment is a double-folding screen, that is, the flexible screen is based on the flexible screen of the electronic device 100 in the first embodiment with the addition of a first non-bending area 36 and a first bendable area 35. The first bendable area 35 is connected between the first non-bending area 36 and one of the non-bending areas 33. The first non-bending area 36 is fixedly attached to the front of the second frame, and the first bendable area 35 is attached to the pivot mechanism. The first bendable area 35 can be bent outward or flattened with the pivot mechanism. When the electronic device 100f is in a flattened state, the two frames 21 and the second frame are flattened, and the flexible screen 30's bendable area 31, two non-bendable areas 33, first bendable area 35, and first non-bendable area 36 are flattened. When the electronic device 100f is in a folded state, the electronic device 100f is bent into an S-shape. Specifically, the two frames 21 and the second frame are folded, and the second frame is located on the side of one frame 21 away from the other frame 21. The middle support member 262 is tilted, and the flexible screen 30's bendable area 31 and first bendable area 35 are both bent, so that the two non-bendable areas 33 and the first non-bendable area 36 are folded. The front of the middle support member 262 abuts against the bend of the bendable area 31.

[0095] When the electronic device 100f in this embodiment is folded, the bendable area 31 of the flexible screen 30 will produce an asymmetrical bending shape. The inclined intermediate support 262 is inclined accordingly. The inclination angle of the intermediate support 262 is such that the front of the intermediate support 262 is tangent to the arc-shaped back of the bendable area 31, and the perpendicular line through the point of tangency passes through the arc center of the bendable area 31. Therefore, during the bending process of the flexible screen 30, the local stress or strain concentration caused by the asymmetry of the flexible screen 30 is improved, thereby enhancing the reliability of the double-folded electronic device 100f.

[0096] like Figure 41As shown, the structure of the electronic device 100g in the seventh embodiment of this application is similar to that of the electronic device 100 in the first embodiment. The difference is that the folding shell of the electronic device 100g in the seventh embodiment is based on the folding shell of the electronic device 100 in the first embodiment, with the addition of a second frame and a pivot mechanism connecting the second frame and one of the frames 21. The second frame is folded inward or flattened relative to the one of the frames 21 through the pivot mechanism. The flexible screen of the electronic device 100g in the seventh embodiment is based on the flexible screen of the electronic device 100 in the first embodiment, with the addition of a first non-bending area 36 and a first bendable area 35. The first bendable area 35 is connected between the first non-bending area 36 and one of the non-bending areas 33. The first non-bending area 36 is fixedly attached to the front of the second frame, and the first bendable area 35 is attached to the pivot mechanism. The first bendable area 35 can bend inward or flattened with the pivot mechanism. When the electronic device 100g is in a flattened state, the two frames 21 and the second frame are also flattened, and the flexible screen 30's bendable area 31, two non-bendable areas 33, first bendable area 35, and first non-bendable area 36 are also flattened. When the electronic device 100g is in a folded state, it bends into an E-shape. Specifically, the two frames 21 and the second frame are folded, and the second frame and one of the frames connected to it are located on opposite sides of the other frame. The middle support member 262 is tilted, and the flexible screen 30's bendable area 31 and the first bendable area 35 are both bent, causing the two non-bendable areas 33 and the first non-bendable area 36 to be folded. The front of the middle support member 262 abuts against the bend of the bendable area 31.

[0097] The beneficial effects of the electronic device 100g in this embodiment are the same as those of the electronic device 100f in the sixth embodiment, and will not be repeated here.

[0098] The above are the embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A folding device, characterized in that, The folding device includes: Base; A rotating mechanism, comprising a first rotating member and a second rotating member, wherein the first rotating member is rotatably connected to one side of the base, and the second rotating member is rotatably connected to the opposite side of the base; a first axis of rotation of the first rotating member relative to the base is parallel to a second axis of rotation of the second rotating member relative to the base; and The support mechanism includes an intermediate support member. A first rotating member is rotatably connected to one side of the intermediate support member via a cam, and a second rotating member is rotatably connected to the opposite side of the intermediate support member. When the folding device is in a flattened state, the front surface of the intermediate support member is parallel to the plane containing the first axis and the second axis. When the folding device is in a folded state, the front surface of the intermediate support member is inclined to the plane containing the first axis and the second axis.

2. The folding device according to claim 1, characterized in that, The intermediate support member includes an intermediate support plate, a first connecting portion disposed on one side of the back of the intermediate support plate, and a second connecting portion disposed on the opposite side of the back of the intermediate support plate. The first rotating member includes a first rotating portion that can rotate relative to the first connecting portion about the first axis. The second rotating member includes a second rotating portion that can rotate relative to the second connecting portion about the second axis. At least one of the first connecting portion and the first rotating portion is provided with the cam. The first rotating portion rotates relative to the first connecting portion, and the cam pushes the intermediate support plate to rotate about the second axis.

3. The folding device according to claim 2, characterized in that, The first connecting part is provided with a connecting groove, the first rotating part includes a first rotating cylinder rotatably housed in the connecting groove, the cam is provided on the outer wall of the first rotating cylinder, the cam can roll against the inner surface of the connecting groove, and the axis of the first rotating cylinder is collinear with the first axis.

4. The folding device according to claim 3, characterized in that, The connecting groove includes an inner top surface, which is parallel to the front of the intermediate support plate. When the folding device is in a folded state, the cam abuts against the inner top surface.

5. The folding device according to claim 3, characterized in that, The second connecting part is provided with a rotating hole along the second axis. The second rotating part includes a second rotating cylinder that is rotatably inserted into the rotating hole. The axis of the second rotating cylinder is collinear with the second axis, and the second rotating cylinder can rotate in the rotating hole.

6. The folding device according to claim 1, characterized in that, The intermediate support includes a first support plate, a second support plate rotatably connected to the first support plate, a first connecting portion disposed on the back side of the first support plate away from the second support plate, and a second connecting portion disposed on the back side of the second support plate away from the first support plate. The first rotating member includes a first rotating portion that can rotate about the first axis relative to the first connecting portion. The second rotating member includes a second rotating portion that can rotate about the second axis relative to the second connecting portion. At least one of the first connecting portion and the first rotating portion is provided with the cam. The first rotating portion rotates relative to the first connecting portion, and the cam rolls against the first support plate to rotate relative to the second support plate.

7. The folding device according to claim 6, characterized in that, The first connecting part has a connecting groove on the side opposite to the first support plate. The first rotating part includes a first rotating cylinder rotatably housed in the connecting groove. The cam is disposed on the outer wall of the first rotating cylinder and rolls against the inner surface of the connecting groove. The axis of the first rotating cylinder is collinear with the first axis. The rotation axis between the first support plate and the second support plate is parallel to the first axis.

8. The folding device according to claim 7, characterized in that, The connecting groove includes an inner top surface and inner side surfaces connected to opposite sides of the inner top surface. The inner top surface is parallel to the first support plate. When the folding device is in a flattened state, the cam abuts against one of the inner side surfaces. The front surface of the first support plate is coplanar with the front surface of the second support plate. When the folding device is in a folded state, the cam abuts against the inner top surface. The first support plate is inclined relative to the second support plate.

9. The folding device according to claim 3, characterized in that, It also includes a reset mechanism, which is connected between the intermediate support and the base, and the reset mechanism has a force that drives the intermediate support closer to the base.

10. The folding device according to claim 9, characterized in that, The base has a receiving space on the side away from the intermediate support member. The reset mechanism is housed in the receiving space. The reset mechanism includes a locking member and an elastic member. The locking member passes through the base and is connected to the intermediate support member. The elastic member elastically abuts against the locking member and the base.

11. The folding device according to claim 10, characterized in that, The locking member includes a connecting rod and a convex cap at one end of the connecting rod. The base has a through hole on the side facing the intermediate support member, and the through hole communicates with the receiving space. The base forms a step between the through hole and the receiving space. The elastic member is sleeved on the connecting rod. The end of the connecting rod away from the convex cap passes through the through hole and is connected to the intermediate support member. The elastic member elastically abuts against the convex cap and the step.

12. The folding device according to claim 2 or 6, characterized in that, The folding device further includes a tension spring, which includes a first fixed end and a second fixed end. The first fixed end and the second fixed end are respectively located at opposite ends of the tension spring. The first fixed end is connected to the first connecting part, and the second fixed end is connected to the base.

13. The folding device according to claim 1, characterized in that, It also includes a first connector and a second connector, the first connector and the second connector being located on opposite sides of the base, the first connector and the first rotating member being located on the same side of the base, the end of the first rotating member away from the base being connected to the first connector through a first guide groove and a first guide rail, the second connector and the second rotating member being located on the same side of the base, the end of the second rotating member away from the base being connected to the second connector through a second guide groove and a second guide rail.

14. The folding device according to claim 13, characterized in that, It also includes a first side support and a second side support, which are located on opposite sides of the base. The first side support and the first connecting member are located on the same side of the base. The first side support and the first connecting member are connected by a first arc groove and a first arc rail, the axis of which is parallel to the first axis. The second side support and the second connecting member are located on the same side of the base. The second side support and the second connecting member are connected by a second arc groove and a second arc rail, the axis of which is parallel to the first axis.

15. The folding device according to claim 14, characterized in that, The first side support member and the first rotating member are connected by a first adjusting groove and a first adjusting shaft, the axis of the first adjusting shaft being parallel to the first axis; the second side support member and the second rotating member are connected by a second adjusting groove and a second adjusting shaft, the axis of the second adjusting shaft being parallel to the first axis.

16. The folding device according to claim 1, characterized in that, The intermediate support member is used to support the flexible screen, which includes a bendable area; when the folding device is in a folded state, the front of the intermediate support member of the folding device abuts against the back arc surface of the bendable area, and the front of the intermediate support member is tangent to the back arc surface.

17. The folding device according to claim 16, characterized in that, A perpendicular line passing through the point of tangency between the front of the intermediate support and the back arc surface of the bendable area passes through the center of the top arc surface of the bendable area.

18. A folding shell, characterized in that, The folding housing includes a folding device as described in any one of claims 1-17 and frames respectively disposed on opposite sides of the folding device, wherein a first connector of the folding device is connected to one of the frames and a second connector of the folding device is connected to the other frame.

19. An electronic device, characterized in that, The electronic device includes a foldable housing and a flexible screen as described in claim 18. The flexible screen includes a bendable area and non-bendable areas respectively disposed on opposite sides of the bendable area. The bendable area faces the front of the folding device. One of the non-bendable areas is connected to the front of one of the frames, and the other non-bendable area is connected to the front of the other frame.

Images