Rotating mechanism and folding electronic device

Abstract

A rotating mechanism (10) and a folding electronic device (1). The rotating mechanism (10) comprises a main shaft assembly (100), two rotating shaft assemblies (310, 320) and two brackets (410, 420). The first rotating shaft assembly (310) is rotationally connected to the main shaft assembly (100), and the second rotating shaft assembly (320) is rotationally connected to the main shaft assembly (100). The first bracket (410) is connected to the first rotating shaft assembly (310), and the second bracket (420) is connected to the second rotating shaft assembly (320). When the rotating mechanism (10) is in an unfolded state, the first bracket (410), the first rotating shaft assembly (310), the main shaft assembly (100), the second rotating shaft assembly (320) and the second bracket (420) together constitute a flat supporting surface (S). When the rotating mechanism (10) switches from the unfolded state to a folded state, the first bracket (410) rotates relative to the first rotating shaft assembly (310), and the second bracket (420) rotates relative to the second rotating shaft assembly (320). When the rotating mechanism (10) is in the folded state, a supporting surface (3101) of the first rotating shaft assembly is parallel to a supporting surface (3201) of the second rotating shaft assembly, such that an accommodating space (N) jointly formed by means of the first rotating shaft assembly (310), the second rotating shaft assembly (320) and the main shaft assembly (100) is increased.

Description

Rotating mechanism and folding electronic device

[0001] This application claims priority to Chinese patent application filed on April 26, 2024, with application number 202410526809.1 and entitled "Rotation Mechanism and Folding Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of foldable electronic products technology, and more particularly to a rotating mechanism and a foldable electronic device. Background Technology

[0003] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend for future mobile electronic products. When unfolded, foldable electronic devices can achieve a larger display area, enhancing the viewing experience. When folded, they can achieve a smaller size, making them easy for users to carry.

[0004] The foldable electronic device includes at least a flexible screen and a housing. The housing includes two structural components for supporting the flexible screen and a rotating mechanism. The two structural components are connected to both sides of the rotating mechanism. In actual use, the rotating mechanism drives the two structural components to rotate, causing the foldable electronic device to fold or unfold. In traditional inward-folding electronic devices, when the electronic device is folded, the flexible screen folds inside the housing. The bent portion of the flexible screen is easily damaged by excessive pressure from the housing, resulting in poor reliability of the flexible screen. Summary of the Invention

[0005] This application provides a rotating mechanism and a folding electronic device to improve the poor reliability of flexible screens.

[0006] To achieve the above objectives, the embodiments of this application provide the following solutions:

[0007] In a first aspect, embodiments of this application provide a rotating mechanism, including a main shaft assembly, a first rotating shaft assembly, a second rotating shaft assembly, a first bracket, and a second bracket. The main shaft assembly is located between the first rotating shaft assembly and the second rotating shaft assembly. A first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly, and a first end of the second rotating shaft assembly is also rotatably connected to the main shaft assembly. The first bracket is connected to the second end of the first rotating shaft assembly, and the second bracket is connected to the second end of the second rotating shaft assembly.

[0008] When the rotating mechanism is in a flat state: the second end of the first rotating shaft assembly, the first end of the first rotating shaft assembly, the first end of the second rotating shaft assembly, and the second end of the second rotating shaft assembly are arranged sequentially along the first direction. The first bracket, the first rotating shaft assembly, the main shaft assembly, the second rotating shaft assembly, and the second bracket together form a supporting plane. In this case, "together forming a supporting plane" can also be understood as adjusting the thickness of the adhesive layer between the flexible screen and the rotating mechanism so that the first bracket, the first rotating shaft assembly, the second rotating shaft assembly, the main inner shaft, the second rotating shaft assembly, and the second bracket together form a supporting plane, thereby ensuring the flat state of the flexible screen when unfolded.

[0009] During the transition of the rotating mechanism from a flat state to a folded state, the first rotating shaft assembly rotates relative to the main shaft assembly, the first support rotates relative to the first rotating shaft assembly, the second rotating shaft assembly rotates relative to the main shaft assembly, and the second support rotates relative to the second rotating shaft assembly.

[0010] When the rotating mechanism is in the folded state: the first rotating shaft assembly, the second rotating shaft assembly, and the main shaft assembly together form a receiving space; the support surface of the first rotating shaft assembly is parallel to the support surface of the second rotating shaft assembly, and both the support surfaces of the first and second rotating shaft assemblies are perpendicular to a first direction. In the first direction, the distance between the support surfaces of the first and second rotating shaft assemblies is a first distance, and the distance between the support surfaces of the first and second supports is less than the first distance. The "first distance" can be understood as the distance between the plane or approximate plane of the first rotating shaft assembly and the plane or approximate plane of the second rotating shaft assembly.

[0011] With the above configuration, since the support surface of the first pivot assembly is parallel to the support surface of the second pivot assembly, the combined accommodating space formed by the first pivot assembly, the main shaft assembly, and the second pivot assembly is increased. This prevents the flexible screen located within the accommodating space from being squeezed, thereby improving the reliability of the flexible screen. Furthermore, since the distance between the support surfaces of the first and second supports is less than a first distance, the flexible screens located between the first and second supports can contact each other, or there can be minute gaps between the flexible screens located between the first and second supports, thus enabling the flexible screen to fold.

[0012] In some embodiments, the first bracket is connected to the second end of the first rotating shaft assembly, including: the first bracket and the second end of the first rotating shaft assembly are connected via a first movable member; wherein the first bracket is rotatably connected to the first end of the first movable member, and the second end of the first movable member is rotatably connected to the second end of the first rotating shaft assembly. The first end of the first movable member can be rotatably connected to the first bracket via a pin, and the second end of the first movable member can be rotatably connected to the first rotating member via a pin, so that the second end of the first movable member can be rotatably connected to the second end of the first rotating shaft assembly. With the above configuration, when the rotating mechanism transitions from a flat state to a folded state, the first bracket can rotate relative to the first rotating shaft assembly.

[0013] The second bracket is connected to the second end of the second rotating shaft assembly, including: the second bracket and the second end of the second rotating shaft assembly are connected via a second movable member; wherein the second bracket is rotatably connected to the first end of the second movable member, and the second end of the second movable member is rotatably connected to the second end of the second movable member assembly. The first end of the second movable member can be rotatably connected to the second bracket via a pin, and the second end of the second movable member can be rotatably connected to the second rotating member via a pin, so that the second end of the second movable member can be rotatably connected to the second end of the second rotating shaft assembly. With the above configuration, when the rotating mechanism transitions from a flat state to a folded state, the second bracket can rotate relative to the second rotating shaft assembly.

[0014] In some embodiments, the first bracket is connected to the second end of the first rotating shaft assembly, including: the first bracket and the second end of the first rotating shaft assembly are connected via a first sliding post and a first sliding hole, the extension direction of the first sliding post is parallel to the second direction, and the extension direction of the first sliding post intersects the extension direction of the first sliding hole; wherein, the first bracket includes the first sliding post, and the second end of the first rotating shaft assembly includes the first sliding hole; or, the first bracket includes the first sliding hole, and the second end of the first rotating shaft assembly includes the first sliding post. With the above configuration, the first sliding post can slide within the first sliding hole in the extension direction of the first sliding hole, so that the first bracket slides relative to the first rotating shaft assembly; simultaneously, the first bracket also rotates about the central axis of the first sliding post, so that the first bracket also rotates relative to the first rotating shaft assembly. In summary, when the rotating mechanism transitions from a flat state to a folded state, the first bracket can rotate relative to the first rotating shaft assembly.

[0015] The second support is connected to the second end of the second rotating shaft assembly, including: the second support and the second end of the second rotating shaft assembly are connected via a second sliding column and a second sliding hole, the extension direction of the second sliding column is parallel to a second direction, and the extension direction of the second sliding column intersects with the extension direction of the second sliding hole; wherein, the second support includes a second sliding column, and the second end of the second rotating shaft assembly includes a second sliding hole; or, the second support includes a second sliding hole, and the second end of the second rotating shaft assembly includes a second sliding column. The second direction is the extension direction of the main shaft assembly. With the above configuration, the second sliding column can slide within the second sliding hole in the extension direction of the second sliding hole, so that the second support slides relative to the second rotating shaft assembly; simultaneously, the second support also rotates about the central axis of the second sliding column as a pivot, so that the second support also rotates relative to the second rotating shaft assembly. In summary, when the rotating mechanism transitions from a flat state to a folded state, the second support can rotate relative to the second rotating shaft assembly.

[0016] In some embodiments, when the rotating mechanism is in a flat state: the first end of the first sliding hole is closer to the supporting plane than the second end of the first sliding hole, and in a first direction, the distance between the first end of the first sliding hole and the main shaft assembly is greater than the distance between the second end of the first sliding hole and the main shaft assembly; the first end of the second sliding hole is closer to the supporting plane than the second end of the second sliding hole, and in a first direction, the distance between the first end of the second sliding hole and the main shaft assembly is greater than the distance between the second end of the second sliding hole and the main shaft assembly. With the above configuration, when the rotating mechanism transitions from a flat state to a folded state, the first bracket slides relative to the first sliding column in a direction away from the main shaft assembly, and the second bracket slides relative to the second sliding column in a direction away from the main shaft assembly. This configuration facilitates adjustment of the length between the first and second brackets, and helps ensure that the length of the flexible screen does not change during the transition from a flat state to a folded state, thus mitigating the squeezing or stretching phenomenon of the rotating mechanism on the flexible screen.

[0017] In some embodiments, during the transition from a flat state to a folded state, the first rotating shaft assembly rotates relative to the main shaft assembly by a first angle, and the second rotating shaft assembly also rotates relative to the main shaft assembly by a first angle; the first support rotates relative to the main shaft assembly by a second angle, and the second support rotates relative to the main shaft assembly by a second angle, the second angle being greater than the first angle. With this configuration, because the rotation angles of the first and second supports relative to the main shaft assembly are relatively large, the first and second supports can drive the flexible screen to fold during the transition from a flat state to a folded state. Because the rotation angles of the first and second rotating shaft assemblies relative to the main shaft assembly are relatively small, excessive compression of the flexible screen by the first and second rotating shaft assemblies during the transition from a flat state to a folded state is avoided, thereby improving the reliability of the flexible screen.

[0018] In some embodiments, the rotating mechanism includes a first swing arm and a second swing arm, a first end of the first swing arm being rotatably connected to the main shaft assembly, a second end of the first swing arm being slidably connected to the first bracket, a first end of the second swing arm being rotatably connected to the main shaft assembly, and a second end of the second swing arm being slidably connected to the second bracket.

[0019] When the rotating mechanism is in a flat position, the first swing arm, the first bracket, the first rotating shaft assembly, the main shaft assembly, the second rotating shaft assembly, the second bracket, and the second swing arm together form a supporting plane. This arrangement improves the supporting effect of the rotating mechanism on the flexible screen.

[0020] During the transition from a flat to a folded state, the second end of the first support relative to the first swing arm slides away from the main shaft assembly, and the second support relative to the second swing arm slides away from the main shaft assembly. This arrangement facilitates adjustment of the length between the first and second supports, ensuring that the length of the flexible screen remains unchanged during the transition and mitigating the squeezing or stretching effect of the rotating mechanism on the flexible screen.

[0021] When the rotating mechanism is in the folded state, in the first direction, the distance between the support surfaces of the first and second swing arms is greater than a first distance. Because the distance between the first and second swing arms is increased, it prevents them from extending into the receiving space jointly enclosed by the first and second rotating shaft assemblies and the main shaft assembly. This further helps to prevent the first and second swing arms from squeezing the flexible screen located within the receiving space, thereby improving the reliability of the flexible screen.

[0022] In some embodiments, in a direction perpendicular to the support surface of the first rotating shaft assembly, a portion of the first swing arm is located between the first rotating shaft assembly and the first bracket; in a direction perpendicular to the support surface of the second rotating shaft assembly, a portion of the second swing arm is located between the second rotating shaft assembly and the second bracket. With this arrangement, the flexible screen, the first rotating shaft assembly, and a portion of the first swing arm can be stacked sequentially in a direction perpendicular to the support surface of the first rotating shaft assembly, and the flexible screen, the second rotating shaft assembly, and a portion of the second swing arm can be stacked sequentially in a direction perpendicular to the support surface of the second rotating shaft assembly. This improves the compactness of the internal components of the rotating mechanism and reduces the space occupied by the rotating mechanism.

[0023] In some embodiments, the first swing arm and the first rotating shaft assembly are slidably connected via a first guide groove and a first guide post; wherein the first swing arm includes the first guide groove and the first rotating shaft assembly includes the first guide post; or, the first swing arm includes the first guide post and the first rotating shaft assembly includes the first guide groove. The second swing arm and the second rotating shaft assembly are slidably connected via a second guide groove and a second guide post; wherein the second swing arm includes the second guide groove and the second rotating shaft assembly includes the second guide post; or, the second swing arm includes the second guide post and the second rotating shaft assembly includes the second guide groove. Through the above configuration, a slidable connection is achieved between the first swing arm and the first rotating shaft assembly, and a slidable connection is achieved between the second swing arm and the second rotating shaft assembly.

[0024] In some embodiments, the first guide groove includes a second groove segment and a first groove segment. The first groove segment is closer to the main shaft assembly than the second groove segment. The extension direction of the second groove segment is parallel to the support surface of the second rotating shaft assembly. In the direction closer to the main shaft assembly, the extension direction of the first groove segment is inclined towards the support surface of the second rotating shaft assembly. During the transition of the rotating mechanism from a flat state to a folded state, the second guide post slides from the second groove segment to the first groove segment. With the above configuration, when the second guide post slides within the second groove segment, the second swing arm and the second rotating member can rotate synchronously. At this time, the second swing arm slides relative to the second rotating member. When the second guide post slides from the second groove segment to the first groove segment, the second swing arm rotates relative to the second rotating member, so that the rotation angle of the second swing arm relative to the main shaft assembly is smaller than the rotation angle of the second rotating member relative to the main shaft assembly.

[0025] The first guide groove includes a fourth groove segment and a third groove segment. The third groove segment is closer to the main shaft assembly than the fourth groove segment. The extension direction of the fourth groove segment is parallel to the support surface of the first rotating shaft assembly. In the direction closer to the main shaft assembly, the extension direction of the third groove segment is inclined towards the support surface of the first rotating shaft assembly. During the transition of the rotating mechanism from a flat state to a folded state, the first guide post slides from the fourth groove segment to the third groove segment. With the above configuration, when the first guide post slides in the fourth groove segment, the first swing arm and the first rotating member can rotate synchronously. At this time, the first swing arm slides relative to the first rotating member. When the first guide post slides from the fourth groove segment to the third groove segment, the first swing arm rotates relative to the first rotating member, so that the rotation angle of the first swing arm relative to the main shaft assembly is less than the rotation angle of the first rotating member relative to the main shaft assembly.

[0026] In some embodiments, the spindle assembly includes a main inner spindle and a synchronous slider. The synchronous slider is slidably connected to the main inner spindle along a second direction, which is the extension direction of the spindle assembly. The first swing arm includes a first helical surface, the synchronous slider includes a second helical surface that mates with the first helical surface, the second swing arm includes a third helical surface, and the synchronous slider includes a fourth helical surface that mates with the third helical surface. With the above configuration, while the first swing arm rotates relative to the first rotating shaft assembly, the second swing arm can rotate relative to the second rotating shaft assembly, thereby achieving synchronous movement of the first and second swing arms.

[0027] In some embodiments, the spindle assembly includes a main inner spindle, a damping slider, and an elastic body. The damping slider is slidably connected to the main inner spindle along a second direction. A first end of the elastic body is connected to the main inner spindle, and a second end of the elastic body contacts the damping slider. The second direction is the extending direction of the spindle assembly. The first swing arm includes a first concave-convex surface, the damping slider includes a second concave-convex surface that mates with the first concave-convex surface, the second swing arm includes a third concave-convex surface, and the damping slider includes a fourth concave-convex surface that mates with the third concave-convex surface. When the rotating mechanism rotates to the first position, the elastic body is in a first compressed state. When the rotating mechanism rotates to the second position, the elastic body is in a second compressed state. With the above configuration, the first and second swing arms can achieve the effect of damping force while rotating relative to the first rotating shaft.

[0028] In some embodiments, the first rotating shaft assembly includes a first rotating member and a first support plate fixedly connected together, the first support plate and the first rotating member together forming a support surface of the first rotating shaft assembly; the first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly, including: the first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly through the first rotating member; the second end of the first rotating shaft assembly is connected to the first bracket, including: the second end of the first rotating shaft assembly is connected to the first bracket through the first rotating member.

[0029] The second rotating shaft assembly includes a second rotating member and a second support plate that are fixedly connected. The second support plate and the second rotating member together form the support surface of the second rotating shaft assembly. The first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly, including: the first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly through the second rotating member. The second end of the first rotating shaft assembly is connected to the first bracket, including: the second end of the second rotating shaft assembly is connected to the first bracket through the second rotating member.

[0030] With the above configuration, when the rotating mechanism transitions from a flat state to a folded state, the first rotating shaft assembly can rotate relative to the main shaft assembly, and the first support can rotate relative to the first rotating shaft assembly; at the same time, the second rotating shaft assembly can rotate relative to the main shaft assembly, and the second support can rotate relative to the second rotating shaft assembly.

[0031] In some embodiments, the first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly via a first rotating member, including: the first rotating member and the main shaft assembly are rotatably connected via a first arc-shaped groove and a first arc-shaped slider; wherein the main shaft assembly includes the first arc-shaped groove, and the first rotating member includes the first arc-shaped slider; or, the main shaft assembly includes the first arc-shaped slider, and the first rotating member includes the first arc-shaped groove. The first arc-shaped slider can be slidably connected to the first arc-shaped groove, so that the main shaft assembly and the first rotating member are rotatably connected via a virtual axis rotational connection.

[0032] The first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly via a second rotating member, including: the second rotating member and the main shaft assembly are rotatably connected via a second arc-shaped groove and a second arc-shaped slider; wherein the main shaft assembly includes a second arc-shaped groove, and the second rotating member includes a second arc-shaped slider; or, the main shaft assembly includes a second arc-shaped slider, and the second rotating member includes a second arc-shaped groove. The second arc-shaped slider can be slidably connected to the second arc-shaped groove, so that the main shaft assembly and the second rotating member are rotatably connected via a virtual axis rotational connection.

[0033] In some embodiments, the rotating mechanism further includes a flexible support member connected to the main shaft assembly. When the rotating mechanism is in a flat state: in a direction perpendicular to the support plane, the support surface of the first bracket extends beyond the support surface of the first rotating shaft assembly, the support surface of the second bracket extends beyond the support surface of the second rotating shaft assembly, and there is a first gap between the support surface of the first bracket and the support surface of the first rotating shaft assembly. The flexible support member is in a flat state, and the first bracket, the first rotating shaft assembly, the main shaft assembly, the second rotating shaft assembly, and the second bracket together constitute a support plane, including: the first rotating shaft assembly, the main shaft assembly, and the second rotating shaft assembly, through the flexible support member, together with the support surfaces of the first bracket and the second bracket, constitute a support plane.

[0034] During the transition of the rotating mechanism from a flat state to a folded state, the flexible support component bends. Here, "bending" can be understood as the flexible support component undergoing elastic deformation from a macroscopic perspective, resulting in a change in its structural shape from a macroscopic perspective.

[0035] When the rotating mechanism is in the folded state: the flexible support is in a bent state, and in the first direction, there is a second distance between the support surface of the first bracket and the support surface of the first rotating shaft assembly, which is greater than the first distance. Because the second distance is greater than the first distance, the rotation angle of the first bracket relative to the main shaft assembly is greater than the rotation angle of the first rotating shaft assembly relative to the main shaft assembly; the rotation angle of the second bracket relative to the main shaft assembly is also greater than the rotation angle of the second rotating shaft assembly relative to the main shaft assembly. Through the above arrangement, the distance between the support surfaces of the first and second brackets is less than the first distance, allowing the flexible screens located between the first and second brackets to contact each other, or allowing a small gap between the flexible screens located between the first and second brackets, thereby achieving the folding of the flexible screen.

[0036] In some embodiments, the spindle assembly includes an inner spindle and an outer spindle stacked along a third direction. At least a portion of the inner spindle forms a support plane, and the support surface of the inner spindle is recessed towards the outer spindle. The third direction is perpendicular to the first direction. With this configuration, the first pivot assembly, the spindle assembly, and the second pivot assembly together increase the accommodating space, further preventing the flexible screen located within the accommodating space from being squeezed, thereby improving the reliability of the flexible screen.

[0037] Secondly, embodiments of this application provide a foldable electronic device, including: a flexible screen, a first structural member, a second structural member, and a rotating mechanism as described in any of the above embodiments. The first and second structural members are connected to both sides of the rotating mechanism, and the flexible screen is located on the same side of the first and second structural members and connected to them. When the foldable electronic device is in an unfolded state, the support plane of the rotating mechanism supports the flexible screen. When the foldable electronic device is in a folded state, the first support door plate, the second support door plate, and the main shaft assembly of the rotating mechanism together enclose an accommodating space, within which a portion of the flexible screen is located. The foldable electronic device provided by the embodiments of this application includes the rotating mechanism described above, and therefore possesses all the aforementioned beneficial effects, which will not be repeated here. Attached Figure Description

[0038] Figure 1 is a structural diagram of a foldable electronic device in a flat state according to an embodiment of this application;

[0039] Figure 2 is a structural diagram of a foldable electronic device in a folded state according to an embodiment of this application;

[0040] Figure 3 is a structural diagram of a foldable electronic device without a flexible screen in a folded state according to an embodiment of this application;

[0041] Figure 4 is a partial enlarged view of point M in Figure 3 when the rotating mechanism in Figure 3 is in a flat state;

[0042] Figure 5 is a partial enlarged view of point M when the rotating mechanism in Figure 3 rotates from a flat state to a folded state;

[0043] Figure 6 is a partial enlarged view of point M in Figure 3 when the rotating mechanism in Figure 3 is in the folded state;

[0044] Figure 7 is a cross-sectional view of the rotating structure in Figure 4 along section line AA when it is in a flat state.

[0045] Figure 8 is a cross-sectional view of the rotating structure in Figure 4 along section line AA when it is in a folded state.

[0046] Figure 9 is an exploded view of the partial structure of the rotating mechanism in Figure 3 at point M from a first-view perspective.

[0047] Figure 10 is a partial exploded view of the rotating mechanism in Figure 3 at point M from a second perspective.

[0048] Figure 11 is a cross-sectional view of the rotating structure in Figure 4 along the BB section line when it is in a flat state.

[0049] Figure 12 is a cross-sectional view along the BB section line of the rotating structure in Figure 4 when it rotates from a flat state to a folded state.

[0050] Figure 13 is a cross-sectional view of the rotating structure in Figure 4 along the BB section line when it is in the folded state.

[0051] Figure 14a is a connection structure diagram of a first rotating member and a first bracket (or a second rotating member and a second bracket) provided in an embodiment of this application from a first perspective.

[0052] Figure 14b is a connection structure diagram of a first rotating member and a first bracket (or a second rotating member and a second bracket) provided in an embodiment of this application from a second perspective.

[0053] Figure 15 is a cross-sectional view of the rotating structure in Figure 4 along the CC section line when it is in a flat state.

[0054] Figure 16 is a cross-sectional view along the CC section line of the rotating structure in Figure 4 when it rotates from a flat state to a folded state.

[0055] Figure 17 is a cross-sectional view of the rotating structure in Figure 4 along the CC section line when it is in a folded state.

[0056] Figure 18 is a partial exploded view of another rotating mechanism provided in the embodiment of this application after removing the first support plate and the second support plate;

[0057] Figure 19 is a connection structure diagram of another first rotating member and first bracket (or second rotating member and second bracket) provided in an embodiment of this application;

[0058] Figure 20 is a cross-sectional view of the rotating structure in Figure 18 along the DD section line when it is in a flat state.

[0059] Figure 21 is a cross-sectional view along the DD section line of the rotating structure in Figure 18 when it rotates from a flat state to a folded state.

[0060] Figure 22 is a cross-sectional view of the rotating structure in Figure 18 along the DD section line when it is in a folded state;

[0061] Figure 23 is a connection structure diagram of the first bracket and the first swing arm (or the second bracket and the second swing arm) in Figure 18;

[0062] Figure 24 is a cross-sectional view of the rotating structure in Figure 18 along the EE section line when it is in a flat state.

[0063] Figure 25 is a cross-sectional view along the EE section line of the rotating structure in Figure 18 as it rotates from a flat state to a folded state.

[0064] Figure 26 is a cross-sectional view of the rotating structure in Figure 18 along the EE section line when it is in a folded state.

[0065] Figure 27 is an exploded view of the first rotating member and the first swing arm (or the second rotating member and the second swing arm) provided in the embodiment of this application from a first perspective.

[0066] Figure 28 is an exploded view of the first rotating member and the first swing arm (or the second rotating member and the second swing arm) provided in the embodiment of this application from a second perspective.

[0067] Figure 29 is a cross-sectional view of the rotating structure in Figure 18 along the FF section line when it is in a flat state.

[0068] Figure 30 is a cross-sectional view along the FF section line when the rotating structure in Figure 18 rotates from a flat state to a folded state.

[0069] Figure 31 is a cross-sectional view of the rotating structure in Figure 18 along the FF section line when it is in a folded state;

[0070] Figure 32 is an exploded view of a spindle assembly provided in an embodiment of this application;

[0071] Figure 33 is an exploded view of the structure of a main inner shaft provided in an embodiment of this application.

[0072] In the diagram: X, first direction; Y, second direction; Z, third direction; 1, folding electronic device; 10, rotating mechanism; 100, main shaft assembly; 21, first structural component; 22, second structural component; 30, flexible screen; 310, first rotating shaft assembly; 311, first support plate; 312, first rotating component; 320, second rotating shaft assembly; 322, second rotating component; 321, second support plate; 410, first bracket; 420, second bracket; 310a, first end of the first rotating shaft assembly; 310b, second end of the first rotating shaft assembly; 320a, first end of the second rotating shaft assembly; 320b, second end of the second rotating shaft assembly; N, accommodating space; D2, distance between the support surfaces of the first and second brackets. 4101, Support surface of the first bracket; 4201, Support surface of the second bracket; 3101, Support surface of the first rotating shaft assembly; 3201, Support surface of the second rotating shaft assembly; 110, Main inner shaft; 120, Main outer shaft; 500, Flexible support member; S, Support plane; S1, Support sub-surface; 3102, Support surface of the first support plate; 3103, Support surface of the first rotating member; 3202, Support surface of the second support plate; 3203, Support surface of the second rotating member; 130, First arc-shaped slide groove; 140, Second arc-shaped slide groove; 3123, First arc-shaped slider; 3223, Second arc-shaped slider; 313, First movable member; 313a, First end of the first movable member; 313b, Second end of the first movable member; 3 14. Pin; 3125. Second recess; 413. First recess; 415. First limiting surface; 3127. Second limiting surface; 4103. Second mating surface; 3105. First mating surface; 310A. First side of the first rotating shaft assembly; 310B. Second side of the first rotating shaft assembly; 315. Second moving member; 315a. First end of the second moving member; 315b. Second end of the second moving member; 423. Third recess; 3225. Fourth recess; 425. Third limiting surface; 3227. Fourth limiting surface; 4203. Fourth mating surface; 3205. Third mating surface; 320A. First side of the second rotating shaft assembly; 320B. Second side of the second rotating shaft assembly; 3128. First sliding column; 32 28. Second sliding post; 418. First sliding hole; 428. Second sliding hole; 418a. First end of the first sliding hole; 418b. Second end of the first sliding hole; 428a. First end of the second sliding hole; 428b. Second end of the second sliding hole; 610. First swing arm; 620. Second swing arm; 4101. Support surface of the first bracket; 6101. Support surface of the first swing arm; 6201. Support surface of the second swing arm; 4201. Support surface of the second bracket; 419. First groove; 612. First slider; 429. Second groove; 622. Second slider; 161. First rotating shaft; 162. Second rotating shaft; 317. First guide groove; 327. Second guide groove; 617. First guide post; 627. Second guide post;3171, First groove segment; 3172, Second groove segment; 3271, Third groove segment; 3272, Fourth groove segment; 710, First spring; 720, Second spring; 700, Elastic body; 800, Damping slider; 618, First concave-convex surface; 811, Second concave-convex surface; 628, Third concave-convex surface; 812, Fourth concave-convex surface; 613, Third through hole; 623, Fourth through hole; 821, First through hole; 822, Second through hole; 900, Synchronous slider; 180, Synchronous groove; 619, Second helical surface; 629, Fourth helical surface; 910, First helical surface; 920, Third helical surface. Detailed Implementation

[0073] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0074] In the following description, the terms "first," "second," etc., are used for ease of description only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0075] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0076] In the embodiments of this application, the directional indications used to explain the structure and movement of different components, such as up, down, left, right, front, and back, are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, these directional indications will also change accordingly.

[0077] This application provides a foldable electronic device. The foldable electronic device can be a mobile phone, tablet computer, television, smart wearable products (e.g., smartwatch, smart bracelet), or other terminal products.

[0078] To facilitate understanding of the foldable electronic device 1 provided in this application embodiment, Figure 1 is a structural diagram of a foldable electronic device in a flat state according to an embodiment of this application; Figure 2 is a structural diagram of a foldable electronic device in a folded state according to an embodiment of this application. The foldable electronic device 1 will be described below with reference to Figures 1 and 2:

[0079] As shown in Figures 1 and 2, the foldable electronic device 1 includes a flexible screen 30. This flexible screen 30 can be an active matrix organic light emitting diode (AMOLED) display.

[0080] As a self-emissive display, AMOLED displays do not require a backlight module (BLM). Therefore, when the substrate of an AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can be bent.

[0081] Furthermore, as shown in Figures 1 and 2, the foldable electronic device 1 also includes a rotating mechanism 10 for supporting the flexible screen 30, a first structural member 21, and a second structural member 22. The rotating mechanism 10 is connected between the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 support the flexible screen 30, ensuring that the flexible screen 30 remains as flat as possible during use and protecting the non-display surface of the flexible screen 30. The first structural member 21 and the second structural member 22 can rotate relative to the rotating mechanism 10, respectively. This application embodiment only briefly illustrates some of the structures of the first structural member 21 and the second structural member 22, and the accompanying drawings are also simplified. This application embodiment does not strictly limit the specific structures of the first structural member 21 and the second structural member 22.

[0082] The first structural member 21 and the second structural member 22 may each include a mid-frame structure for mounting and securing other components of the foldable electronic device 1. Examples include a camera, earphones, handset, buttons, and batteries. This embodiment does not limit the other electronic components mounted on the first structural member 21 and the second structural member 22. The first structural member 21 and the second structural member 22 may also each include a decorative cover plate for protecting the components inside the mid-frame structure and for presenting part of the appearance of the foldable electronic device 1.

[0083] For example, a portion of the flexible screen 30 can be fixed to the first structural member 21 via the adhesive layer 40, a portion can be fixed to the second structural member 22 via the adhesive layer 40, and a portion can be fixed to the rotating mechanism 10. The adhesive layer 40 can be a thin film layer formed after applying adhesive. This embodiment does not limit the specific form of the adhesive layer 40; for example, the adhesive layer 40 can be an intermittent thin film layer, or it can be a continuous thin film layer. Furthermore, other electronic components can also be disposed on the first structural member 21 and the second structural member 22.

[0084] Figure 3 is a structural diagram of a foldable electronic device without a flexible screen in a flat state according to an embodiment of this application; Figure 4 is a partial enlarged view of point M in Figure 3 when the rotating mechanism is in a flat state; Figure 5 is a partial enlarged view of point M in Figure 3 when the rotating mechanism rotates from a flat state to a folded state; Figure 6 is a partial enlarged view of point M in Figure 3 when the rotating mechanism is in a folded state. Referring to Figures 3, 4, 5, and 6, a rotating mechanism 10 according to an embodiment of this application is described below:

[0085] The rotating mechanism 10 includes a spindle assembly 100, a first rotating shaft assembly 310, and a second rotating shaft assembly 320. The spindle assembly 100 is located between the first rotating shaft assembly 310 and the second rotating shaft assembly 320. The first end 310a of the first rotating shaft assembly is rotatably connected to the spindle assembly 100, and the first end 320a of the second rotating shaft assembly is also rotatably connected to the spindle assembly 100.

[0086] The rotating mechanism 10 also includes a first bracket 410 and a second bracket 420. The second end 310b of the first rotating shaft assembly is connected to the first bracket 410, and the second end 320b of the second rotating shaft assembly is connected to the second bracket 420. The first bracket 410 is also connected to the first structural member 21, and the second bracket 420 is also connected to the second structural member 22. With the above configuration, the first structural member 21 can drive the first rotating shaft assembly 310 to rotate relative to the main shaft assembly 100 via the first bracket 410, and the second structural member 22 can drive the second rotating shaft assembly 320 to rotate relative to the main shaft assembly 100 via the second bracket 420, thereby realizing the folding or unfolding of the foldable electronic device 1.

[0087] For ease of explanation, the arrangement direction of the first rotating shaft assembly 310 and the second rotating shaft assembly 320 when the rotating mechanism 10 is in a flat state is defined as the first direction X, the extension direction of the main shaft assembly 100 is defined as the second direction Y, and the thickness direction of the main shaft assembly 100 is defined as the third direction Z. The first direction X is perpendicular to the second direction Y, and the third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0088] As shown in Figures 1, 3, and 4, when the first structural member 21 and the second structural member 22 are in a flat state, the included angle between the first structural member 21 and the second structural member 22 can be approximately 180° (it is understood that the included angle between the first structural member 21 and the second structural member 22 is also allowed to have a slight deviation, for example, the included angle can be 165°, 177° or 185°). At this time, the first rotating shaft assembly 310 and the second rotating shaft assembly 320 are in a flat state, the flexible screen 30 is also in a flat state, that is, the rotating mechanism 10 is in a flat state.

[0089] Referring to Figures 2 and 6, when the first structural member 21 and the second structural member 22 are in a folded state, the included angle between them can be approximately 0° (it is understood that a slight deviation in the included angle is permissible, for example, the included angle can be 1°, 3°, or 5°). At this time, the first rotating shaft assembly 310 and the second rotating shaft assembly 320 are in a folded state, the flexible screen 30 is also in a folded state, that is, the rotating mechanism 10 is in a folded state. In some embodiments, when the first structural member 21 and the second structural member 22 are in a folded state, they can contact each other to achieve positioning. In some other embodiments, when the first structural member 21 and the second structural member 22 are in a folded state, they can also be close to each other with a small gap between them; this application does not specifically limit this.

[0090] When the rotating mechanism 10 is in the folded state, the first rotating shaft assembly 310, the second rotating shaft assembly 320, and the main shaft assembly 100 together form a receiving space N, and a portion of the flexible screen 30 is located within the receiving space N. However, in related technologies, along the first direction X, the distance between the first rotating shaft assembly 310 and the second rotating shaft assembly 320 decreases in the direction away from the main shaft assembly 100, causing the receiving space N formed by the first rotating shaft assembly 310, the second rotating shaft assembly 320, and the main shaft assembly 100 to decrease. This results in the flexible screen 30 being squeezed within the receiving space N, which may damage the flexible screen 30 and reduce its reliability.

[0091] Figure 7 is a cross-sectional view of the rotating structure in Figure 4 along section line AA when it is in a flat state; Figure 8 is a cross-sectional view of the rotating structure in Figure 4 along section line AA when it is in a folded state.

[0092] In view of this, in the rotating mechanism 10 provided in the embodiments of this application, as shown in Figures 4 and 7, when the rotating mechanism 10 is in a flat state, the second end 310b of the first rotating shaft assembly, the first end 310a of the first rotating shaft assembly, the first end 320a of the second rotating shaft assembly, and the second end 320b of the second rotating shaft assembly are arranged sequentially along the first direction X. The first support 410, the first rotating shaft assembly 310, the second rotating shaft assembly 320, at least a portion of the main shaft assembly 100, the second rotating shaft assembly 320, and the second support 420 together constitute a supporting plane S. The supporting plane S can be used to support the flexible screen 30 and improve the flatness of the flexible screen 30 in a flat state. Here, "supporting plane S" can be understood as a plane or an approximate plane. The plane can be a surface parallel to the first direction XX and the second direction YY, and the approximate plane can be a slightly undulating surface. The acceptable deviation range of the approximate plane can be, for example, a deviation within 5%.

[0093] In some embodiments, the flexible screen 30 can be fixed to the rotating mechanism 10 by an adhesive layer 40. The support effect of the rotating mechanism 10 on the flexible screen 30 can be adjusted by adjusting the thickness of the adhesive layer 40 between the flexible screen 30 and the rotating mechanism 10, so as to ensure that the flexible screen 30 is in a flat state. In this case, "together forming the supporting plane S" can also be understood as adjusting the thickness of the adhesive layer 40 between the flexible screen 30 and the rotating mechanism 10 so that the first bracket 410, the first rotating shaft assembly 310, the second rotating shaft assembly 320, the main shaft assembly 100, the second rotating shaft assembly 320, and the second bracket 420 together form the supporting plane S, thereby ensuring that the flexible screen 30 is in a flat state when unfolded.

[0094] In some embodiments, there may be a height difference between the support surface 4101 of the first bracket, the support surface 3101 of the first rotating shaft assembly, the support surface 3201 of the second rotating shaft assembly, the support surface 1001 of the main shaft assembly, the support surface 3201 of the second rotating shaft assembly, and the support surface 4201 of the second bracket. Other components may also be provided between the rotating mechanism 10 and the flexible screen 30 so that the rotating mechanism 10 can support the flexible screen 30 through other components. In this case, "together forming the support plane S" can also be understood as adjusting the shape and thickness of other components between the flexible screen 30 and the rotating mechanism 10 so that the first bracket 410, the first rotating shaft assembly 310, the second rotating shaft assembly 320, the main shaft assembly 100, the second rotating shaft assembly 320, and the second bracket 420 together form the support plane S, thereby ensuring the flat state of the flexible screen 30 when unfolded.

[0095] During the transition of the rotating mechanism 10 from a flat state to a folded state, the first rotating shaft assembly 310 rotates relative to the main shaft assembly 100, the first support 410 rotates relative to the first rotating shaft assembly 310, the second rotating shaft assembly 320 rotates relative to the main shaft assembly 100, and the second support 420 rotates relative to the second rotating shaft assembly 320.

[0096] As shown in Figure 5, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first rotating shaft assembly 310 rotates relative to the main shaft assembly 100 by a first angle (for example, the first rotating shaft assembly 310 can rotate relative to the main shaft assembly 100 in the q1 direction), and the first support 410 rotates relative to the main shaft assembly 100 by a second angle (for example, the first support 410 can rotate relative to the main shaft assembly 100 in the p1 direction). The first angle and the second angle are not equal, that is, the first support 410 and the first rotating shaft assembly 310 also achieve relative rotation.

[0097] Similarly, the second rotating shaft assembly 320 rotates relative to the main shaft assembly 100 by a first angle (e.g., the second rotating shaft assembly 320 can rotate relative to the main shaft assembly 100 in the q2 direction). Since the first rotating shaft assembly 310 and the second rotating shaft assembly 320 rotate at the same angle, the first rotating shaft assembly 310 and the second rotating shaft assembly 320 can rotate synchronously. The second support 420 rotates relative to the main shaft assembly 100 by a second angle (e.g., the second support 420 can rotate relative to the main shaft assembly 100 in the p2 direction), so that the first support 410 and the second support 420 can rotate synchronously. Since the first angle and the second angle are not equal, that is, the second support 420 and the second rotating shaft assembly 320 also rotate relative to each other.

[0098] In some embodiments, the second angle may be greater than the first angle. With the above configuration, since the first support 410 and the second support 420 have a large rotation angle relative to the main shaft assembly 100, the first support 410 and the second support 420 can drive the flexible screen 30 to fold during the transition from a flat state to a folded state of the rotating mechanism 10. Since the first pivot assembly 310 and the second pivot assembly 320 have a small rotation angle relative to the main shaft assembly 100, excessive compression of the flexible screen 30 by the first pivot assembly 310 and the second pivot assembly 320 can be avoided during the transition from a flat state to a folded state of the rotating mechanism 10, thereby improving the reliability of the flexible screen 30.

[0099] As shown in Figures 6 and 8, when the rotating mechanism 10 is in the folded state: the first rotating shaft assembly 310, the second rotating shaft assembly 320, and the main shaft assembly 100 together form the accommodating space N. The support surface 3101 of the first rotating shaft assembly is parallel to the support surface 3201 of the second rotating shaft assembly, and both the support surfaces 3101 and 3201 are perpendicular to the first direction X. In the first direction X, the distance between the support surfaces 3101 and 3201 of the first rotating shaft assembly is a first distance D1, and the distance between the support surfaces 4101 and 4201 of the first bracket (e.g., distance D2 in Figure 8) is less than the first distance D1.

[0100] Here, at least a portion of the support surface 3101 of the first rotating shaft assembly can be a plane or a near-plane, and at least a portion of the support surface 3201 of the second rotating shaft assembly can be a plane or a near-plane. The plane can be a surface perpendicular to the first direction XX, and the near-plane can be a slightly undulating surface. The acceptable deviation range for the near-plane can be, for example, within 5%. "First distance D1" can be understood as the distance between the plane or near-plane of the first rotating shaft assembly 310 and the plane or near-plane of the second rotating shaft assembly 320.

[0101] With the above configuration, since the support surface 3101 of the first rotating shaft assembly is parallel to the support surface 3201 of the second rotating shaft assembly, the accommodating space N formed by the first rotating shaft assembly 310, the main shaft assembly 100, and the second rotating shaft assembly 320 is increased. This prevents the flexible screen 30 located within the accommodating space N from being squeezed, thereby improving the reliability of the flexible screen 30. Furthermore, since the distance between the support surface 4101 of the first bracket and the support surface 4201 of the second bracket is less than the first distance D1, the flexible screens 30 located between the first bracket 410 and the second bracket 420 can contact each other, or there can be a small gap between the flexible screens 30 located between the first bracket 410 and the second bracket 420, thereby enabling the folding of the flexible screen 30.

[0102] In some embodiments, continuing to refer to Figures 7 and 8, the spindle assembly 100 may include a main inner spindle 110 and a main outer spindle 120 stacked along a third direction Z, with at least a portion of the main inner spindle 110 forming a support plane S. Both the main inner spindle 110 and the main outer spindle 120 may extend along a second direction Y, and the main inner spindle 110 may be fixedly connected to the main outer spindle 120 by screws. The main outer spindle 120 may include an outer surface, which may be the surface of the main outer spindle 120 away from the main inner spindle 110. The support surface of the main inner spindle 110 may be the surface of the main inner spindle 110 away from the main outer spindle 120. When the flexible screen 30 is in a flat state, the support surface of the main inner spindle 110 is used to improve the flatness of the flexible screen 30.

[0103] Based on the above structure, the support surface of the inner shaft 110 can be recessed towards the outer shaft 120. The support surface of the inner shaft 110 can be recessed into an arc-shaped surface 1103 towards the outer shaft 120. At this time, when the rotating mechanism 10 is in a flat state, the main shaft assembly 100 can support the flexible screen through the flexible support member 500, and the main shaft assembly 100 forms part of the support plane S through the flexible support member 500. Through the above arrangement, the first rotating shaft assembly 310, the main shaft assembly 100 and the second rotating shaft assembly 320 together form an increased accommodating space N, which can further increase the volume of the accommodating space N, further avoid the flexible screen 30 located in the accommodating space N being squeezed, and thus help to further improve the reliability of the flexible screen 30.

[0104] Of course, in some other embodiments, the support surface of the main inner shaft 110 can be a plane or a near-plane. In this case, when the rotating mechanism 10 is in a flat state, the support surface 1001 of the main shaft assembly can support the flexible screen, and the support surface 1001 of the main shaft assembly constitutes part of the support plane S.

[0105] In some embodiments, the rotating mechanism 10 may further include a flexible support 500, which may be connected to the spindle assembly 100. For example, the flexible support 500 may include a flat plate having a plurality of through holes therethrough, to give the flexible support 500 a certain degree of bending capability.

[0106] When the rotating mechanism 10 is in a flat state: As shown in Figure 7, in the direction perpendicular to the support plane S, the support surface 4101 of the first bracket can extend beyond the support surface 3101 of the first rotating shaft assembly, and the support surface 4201 of the second bracket can extend beyond the support surface 3201 of the second rotating shaft assembly. A first distance H1 exists between the support surface 4101 of the first bracket and the support surface 3101 of the first rotating shaft assembly, and a first distance H1 also exists between the support surface 4201 of the second bracket and the support surface 3201 of the second rotating shaft assembly. For example, the support surface 3101 of the first rotating shaft assembly, the support surface 1001 of the main shaft assembly, and the support surface 3201 of the second rotating shaft assembly can form a support sub-surface S1, which extends beyond both the support surface 4101 of the first bracket and the support surface 4201 of the second bracket.

[0107] The flexible support 500 is in a flat state. The first bracket 410, the first rotating shaft assembly 310, the main shaft assembly 100, the second rotating shaft assembly 320, and the second bracket 420 together form the support plane S. The first rotating shaft assembly 310, the main shaft assembly 100, and the second rotating shaft assembly 320 together form the support plane S with the support surface 4101 of the first bracket and the support surface 4201 of the second bracket through the flexible support 500.

[0108] For example, the flexible support member 500 can be connected to the support sub-surface S1 and shield the first rotating shaft assembly 310, the main shaft assembly 100, and the second rotating shaft assembly 320. For instance, the flexible support member 500 can be bonded to the support surface 1001 of the main shaft assembly by an adhesive layer. By adjusting the thickness of the flexible support member 500 and the adhesive layer, the support surface of the flexible support member 500, the support surface 4101 of the first bracket, and the support surface 4201 of the second bracket can be made coplanar, so that the flexible support member 500, the first bracket 410, and the second bracket 420 together constitute the support plane S.

[0109] During the transition from a flat state to a folded state, the flexible support 500 bends. Here, "bending" can be understood as the flexible support 500 undergoing elastic deformation from a macroscopic perspective, resulting in a change in its structural shape from a macroscopic perspective.

[0110] When the rotating mechanism 10 is in the folded state: As shown in Figure 8, the flexible support member 500 is in a bent state. In the first direction X, there is a second distance H2 between the support surface 4101 of the first bracket and the support surface 3101 of the first rotating shaft assembly, and there is a second distance H2 between the support surface 4201 of the second bracket and the support surface 3201 of the second rotating shaft assembly. The second distance H2 is greater than the first distance H1. For example, the flexible support member 500 can be bent into a "U" shape to accommodate part of the flexible screen 30.

[0111] As described in the above embodiments, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first support 410 rotates relative to the first rotating shaft assembly 310, and the second support 420 rotates relative to the second rotating shaft assembly 320. Since the rotation angle of the first support 410 relative to the main shaft assembly 100 is greater than the rotation angle of the first rotating shaft assembly 310 relative to the main shaft assembly 100, and the rotation angle of the second support 420 relative to the main shaft assembly 100 is greater than the rotation angle of the second rotating shaft assembly 320 relative to the main shaft assembly 100, the second distance H2 is greater than the first distance H1. Through this arrangement, the distance between the support surface 4101 of the first support and the support surface 4201 of the second support is less than the first distance D1, allowing the flexible screen 30 located between the first support 410 and the second support 420 to contact each other, or allowing a small gap between the flexible screen 30 located between the first support 410 and the second support 420, thereby enabling the folding of the flexible screen 30.

[0112] Figure 9 is a partial exploded view of the rotating mechanism in Figure 3 at point M from a first perspective; Figure 10 is a partial exploded view of the rotating mechanism in Figure 3 at point M from a second perspective. To facilitate illustrating the connection relationships of the structural components, the main outer shaft 120 is omitted from the main shaft assembly 100 in Figure 10. The structures of the first rotating shaft assembly 310 and the second rotating shaft assembly 320 will be described below with reference to Figures 9 and 10.

[0113] In some embodiments, the first rotating shaft assembly 310 may include a first rotating member 312 and a first support plate 311 fixedly connected, the first support plate 311 and the first rotating member 312 together forming the support surface 3101 of the first rotating shaft assembly.

[0114] The first rotating member 312 can be multiple, and the first support plate 311 can be fixedly connected to multiple first rotating members 312. The first support plate 311 and the first rotating members 312 can be arranged along the second direction Y. In this case, the support surface 3102 of the first support plate and the support surface 3103 of the first rotating member can be arranged along the second direction Y, so that the support surface 3102 of the first support plate and the support surface 3103 of the first rotating member together constitute the support surface 3101 of the first rotating shaft assembly. Of course, in some other examples, the support surface 3101 of the first rotating shaft assembly may only include the support surface 3102 of the first support plate.

[0115] The first support plate 311 and the first rotating member 312 can be fixedly connected by threaded fasteners such as screws. For example, in the direction perpendicular to the support surface 3101 of the first rotating shaft assembly, the screws can be threadedly connected to the threaded holes of the first support plate 311 and the first rotating member 312. Of course, in some other embodiments, the first support plate 311 and the first rotating member 312 can also be connected together by other fixed connection methods such as bonding or snap-fit ​​connection. This application does not specifically limit this method.

[0116] Based on the above configuration, the second rotating shaft assembly 320 may include a second rotating member 322 and a second support plate 321 that are fixedly connected. The second support plate 321 and the second rotating member 322 together constitute the support surface 3201 of the second rotating shaft assembly.

[0117] Similarly, there can be multiple second rotating members 322, and the second support plate 321 can be fixedly connected to multiple second rotating members 322. The second support plate 321 and the second rotating members 322 can be arranged along the second direction Y. In this case, the support surface 3202 of the second support plate and the support surface 3203 of the second rotating member can be arranged along the second direction Y, so that the support surface 3202 of the second support plate and the support surface 3203 of the second rotating member together constitute the support surface 3201 of the second rotating shaft assembly. Of course, in some other examples, the support surface 3201 of the second rotating shaft assembly may only include the support surface 3202 of the second support plate.

[0118] The second support plate 321 and the second rotating member 322 can be fixedly connected by threaded fasteners such as screws. For example, in the direction perpendicular to the support surface 3201 of the second rotating shaft assembly, the screw can be threadedly connected to the threaded hole of the second support plate 321 and the threaded hole of the second rotating member 322. Of course, in some other embodiments, the second support plate 321 and the second rotating member 322 can also be connected together by other fixed connection methods such as bonding or snap-fit ​​connection, and this application embodiment does not specifically limit this.

[0119] Furthermore, the first end 310a of the first rotating shaft assembly is rotatably connected to the main shaft assembly 100, including: the first end 310a of the first rotating shaft assembly is rotatably connected to the main shaft assembly 100 through the first rotating member 312; the second end 310b of the first rotating shaft assembly is connected to the first bracket 410, including: the second end 310b of the first rotating shaft assembly is connected to the first bracket 410 through the first rotating member 312.

[0120] Similarly, the first end 320a of the second rotating shaft assembly is rotatably connected to the main shaft assembly 100, including: the first end 320a of the second rotating shaft assembly is rotatably connected to the main shaft assembly 100 through the second rotating member 322; the second end 310b of the first rotating shaft assembly is connected to the first bracket 410, including: the second end 320b of the second rotating shaft assembly is connected to the first bracket 410 through the second rotating member 322.

[0121] Here, this application embodiment does not specifically limit the connection method of the first rotating member 312 with the main shaft assembly 100 and the first support 410, and the connection method of the second rotating member 322 with the main shaft assembly 100 and the second support 420. With the above settings, when the rotating mechanism 10 changes from a flat state to a folded state, the first rotating shaft assembly 310 can rotate relative to the main shaft assembly 100, and the first support 410 can rotate relative to the first rotating shaft assembly 310; at the same time, the second rotating shaft assembly 320 can rotate relative to the main shaft assembly 100, and the second support 420 can rotate relative to the second rotating shaft assembly 320.

[0122] Referring to Figures 9 and 10, the connection methods between the first rotating shaft assembly 310 and the main spindle assembly 100, and the connection methods between the second rotating shaft assembly 320 and the main spindle assembly 100 in some embodiments will be briefly described below.

[0123] In some embodiments, the first end 310a of the first rotating shaft assembly is rotatably connected to the main shaft assembly 100 via a first rotating member 312. This may include: the first rotating member 312 and the main shaft assembly 100 being rotatably connected via a first arc-shaped groove 130 and a first arc-shaped slider 3123. As shown in Figures 9 and 11, the main shaft assembly 100 may include the first arc-shaped groove 130, and the first rotating member 312 may include the first arc-shaped slider 3123. For example, in the main shaft assembly 100, the outer main shaft 120 and the inner main shaft 110 may jointly enclose the first arc-shaped groove 130. The first arc-shaped slider 3123 can be slidably connected to the first arc-shaped groove 130, allowing the main shaft assembly 100 and the first rotating member 312 to be rotatably connected via a virtual axis rotational connection. Furthermore, the axis of rotation between the main shaft assembly 100 and the first rotating member 312 is parallel to the second direction Y.

[0124] Alternatively, in some other implementations, the positions of the first arc-shaped slider 3123 and the first arc-shaped groove 130 can be interchanged. For example, the spindle assembly 100 may include the first arc-shaped slider 3123, and the first rotating member 312 may include the first arc-shaped groove 130.

[0125] The first end 320a of the second rotating shaft assembly is rotatably connected to the main shaft assembly 100 via a second rotating member 322, including: the second rotating member 322 and the main shaft assembly 100 are rotatably connected via a second arc-shaped groove 140 and a second arc-shaped slider 3223. As shown in Figures 9 and 11, the main shaft assembly 100 includes the second arc-shaped groove 140, and the second rotating member 322 includes the second arc-shaped slider 3223. For example, in the main shaft assembly 100, the outer main shaft 120 and the inner main shaft 110 can jointly enclose the second arc-shaped groove 140. The second arc-shaped slider 3223 can be slidably connected to the second arc-shaped groove 140, so that the main shaft assembly 100 and the second rotating member 322 are rotatably connected via a virtual axis rotational connection. Furthermore, the rotation axis between the spindle assembly 100 and the second rotating member 322 is parallel to the second direction Y, and the rotation axis between the spindle assembly 100 and the second rotating member 322 does not coincide with the rotation axis between the spindle assembly 100 and the first rotating member 312.

[0126] Alternatively, in some other implementations, the positions of the second arc-shaped slider 3223 and the second arc-shaped groove 140 can be interchanged. For example, the spindle assembly 100 includes the second arc-shaped slider 3223, and the second rotating member 322 includes the second arc-shaped groove 140.

[0127] Figure 11 is a cross-sectional view of the rotating structure in Figure 4 along the BB section line when it is in the flat state; Figure 12 is a cross-sectional view of the rotating structure in Figure 4 along the BB section line when it rotates from the flat state to the folded state; Figure 13 is a cross-sectional view of the rotating structure in Figure 4 along the BB section line when it is in the folded state.

[0128] Referring to Figures 11, 12, and 13, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first arc-shaped slider 3123 slides away from the second arc-shaped slide groove 140 within the first arc-shaped slide groove 130, and slides out of the first arc-shaped slide groove 130, with the portion of the first arc-shaped slider 3123 located in the first arc-shaped slide groove 130 gradually decreasing; similarly, the second arc-shaped slider 3223 slides away from the first arc-shaped slide groove 130 within the second arc-shaped slide groove 140, and slides out of the second arc-shaped slide groove 140, with the portion of the second arc-shaped slider 3223 located in the second arc-shaped slide groove 140 gradually decreasing. Furthermore, since the first arc-shaped slide groove 130 and the second arc-shaped slide groove 140 penetrate the main inner shaft 110, the first arc-shaped slider 3123 and the second arc-shaped slider 3223 can together with the main inner shaft 110 to form the arc-shaped surface 1103 in the support surface 1001 of the main shaft assembly.

[0129] Figure 14a is a connection structure diagram of a first rotating member and a first support (or a second rotating member and a second support) from a first perspective according to an embodiment of this application; Figure 14b is a connection structure diagram of a first rotating member and a first support (or a second rotating member and a second support) from a second perspective according to an embodiment of this application. Referring to Figures 14a and 14b, and in conjunction with Figure 9, the connection methods of the first rotating shaft assembly 310 and the first support 410, and the connection methods of the second rotating shaft assembly 320 and the second support 420 in some embodiments will be briefly described below.

[0130] In some embodiments, the first bracket 410 is connected to the second end 310b of the first rotating shaft assembly, including: the first bracket 410 and the second end 310b of the first rotating shaft assembly are connected via a first movable member 313. Specifically, the first bracket 410 is rotatably connected to the first end 313a of the first movable member, and the second end 313b of the first movable member is rotatably connected to the second end 310b of the first rotating shaft assembly.

[0131] For example, the first movable member 313 can be generally plate-shaped. The first end 313a of the first movable member can be rotatably connected to the first support 410 via a pin 314, and the second end 313b of the first movable member can be rotatably connected to the first rotating member 312 via a pin 314, so that the second end 313b of the first movable member can be rotatably connected to the second end 310b of the first rotating shaft assembly. With the above configuration, when the rotating mechanism 10 transitions from a flat state to a folded state, the first support 410 can rotate relative to the first rotating shaft assembly 310.

[0132] Furthermore, the first support 410 may include a first recess 413, the first rotating member 312 may include a second recess 3125, the first end 313a of the first movable member may extend into the first recess 413, and the pin 314 may pass through the first end 313a and the first recess 413 of the first movable member, so that the first movable member 313 is rotatably connected to the first support 410; the second end 313b of the first movable member may extend into the second recess 3125, and the pin 314 may pass through the second end 313b and the second recess 3125 of the first movable member, so that the first movable member 313 is rotatably connected to the first rotating member 312.

[0133] The first recess 413 may include a first limiting surface 415, the plane of which intersects with the plane of the support surface 4101 of the first bracket. Furthermore, in the direction approaching the spindle assembly 100, the first limiting surface 415 may be inclined towards the support surface 4101 of the first bracket. For example, the first limiting surface 415 may be an inclined plane. The second recess 3125 may include a second limiting surface 3127, the plane of which is parallel to the plane of the support surface 3103 of the first rotating member.

[0134] Based on the above structure, and referring to Figures 11 to 14b, the second end 310b of the first rotating shaft assembly may further include a first mating surface 3105, and the first support 410 may further include a second mating surface 4103. The first mating surface 3105 may be located on the side of the first rotating member 312 near the first support 410, and the second mating surface 4103 may be located on the side of the first support 410 near the first rotating member 312. In the direction close to the spindle assembly 100, the first mating surface 3105 may be inclined away from the support surface 3101 of the first rotating shaft assembly, and the second mating surface 4103 may be inclined away from the support surface 4101 of the first support.

[0135] Figure 15 is a cross-sectional view of the rotating structure in Figure 4 along the CC section line when it is in the flat state; Figure 16 is a cross-sectional view of the rotating structure in Figure 4 when it rotates from the flat state to the folded state along the CC section line; Figure 17 is a cross-sectional view of the rotating structure in Figure 4 along the CC section line when it is in the folded state.

[0136] For ease of explanation, in the direction perpendicular to the support surface 3101 of the first rotating shaft assembly, the side where the support surface 3101 of the first rotating shaft assembly is located is referred to as the first side 310A of the first rotating shaft assembly, and the other side opposite to the first side 310A of the first rotating shaft assembly is referred to as the second side 310B of the first rotating shaft assembly.

[0137] As shown in Figures 11 and 15, when the rotating mechanism 10 is in a flat state, in the first direction X, the distance between the first end 313a of the first movable member and the main shaft assembly 100 is greater than the distance between the second end 313b of the first movable member and the main shaft assembly 100. The first end 313a of the first movable member contacts the first limiting surface 415, and the first mating surface 3105 and the second mating surface 4103 are parallel to each other. Through the above arrangement, the first support 410 can be prevented from rotating relative to the first rotating shaft assembly 310 towards the second side 310B of the first rotating shaft assembly, thereby improving the support effect of the support surface 4101 of the first support on the flexible screen 30.

[0138] As shown in Figures 12 and 16, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first end 313a of the first movable member rotates relative to the first rotating shaft assembly 310 toward the first side 310A of the first rotating shaft assembly, that is, the first end 313a of the first movable member rotates clockwise relative to the first rotating shaft assembly 310, and the plane containing the first mating surface 3105 intersects the plane containing the second mating surface 4103. Through the above arrangement, the first rotating shaft assembly 310 rotates clockwise relative to the main shaft assembly 100, and the first support 410 rotates clockwise relative to the first rotating assembly 310. The angle of rotation of the first support 410 relative to the main shaft assembly 100 is greater than the angle of rotation of the first rotating shaft assembly 310 relative to the main shaft assembly 100, that is, the first support 410 can rotate relative to the first rotating shaft assembly 310.

[0139] As shown in Figures 13 and 17, when the rotating mechanism 10 is in the folded state, the direction from the first end 313a of the first movable member to the second end 313b of the first movable member is perpendicular to the second direction Y. The second end 313b of the first movable member contacts the second limiting surface 3127, and the first mating surface 3105 and the second mating surface 4103 are parallel to each other. With the above arrangement, the first support 410 can be prevented from rotating relative to the first rotating shaft assembly 310 towards the first side 310A of the first rotating shaft assembly, thereby preventing the first support 410 from excessively compressing the flexible screen 30.

[0140] Similarly, the motion principle between the second support 420 and the second rotating shaft assembly 320 can be the same as that between the first support 410 and the first rotating shaft assembly 310. Referring to Figures 14a and 14b, and in conjunction with Figure 9, the connection between the second support 420 and the second end 320b of the second rotating shaft assembly includes: the second support 420 and the second end 320b of the second rotating shaft assembly are connected via a second movable member 315; wherein, the second support 420 is rotatably connected to the first end 315a of the second movable member, and the second end 315b of the second movable member is rotatably connected to the second end 320b of the second rotating shaft assembly.

[0141] For example, the second movable member 315 can be generally plate-shaped. The first end 315a of the second movable member can be rotatably connected to the second support 420 via a pin 314, and the second end 315b of the second movable member can be rotatably connected to the second rotating member 322 via a pin 314, so that the second end 315b of the second movable member can be rotatably connected to the second end 320b of the second rotating shaft assembly. With the above configuration, when the rotating mechanism 10 transitions from a flat state to a folded state, the second support 420 can rotate relative to the second rotating shaft assembly 320.

[0142] In summary, when the first support 410 and the first rotating shaft assembly 310 are rotatably connected by the first movable member 313, and the second support 420 and the second rotating shaft assembly 320 are rotatably connected by the second movable member 315, the shaft hole fit helps to reduce the force on the first support 410 and the second support 420, thereby avoiding torsional deformation of the first support 410 and the second support 420. At the same time, it also helps to improve the motion stability of the first support 410 and the second support 420.

[0143] Similarly, referring to FIG14a, the second bracket 420 may include a third recess 423, the second rotating member 322 may include a fourth recess 3225, the first end 315a of the second movable member may extend into the third recess 423 and be rotatably connected to the second bracket 420, and the second end 315b of the second movable member may extend into the fourth recess 3225 and be rotatably connected to the second rotating member 322. The third recess 423 may include a third limiting surface 425, the plane of which intersects with the plane of the support surface 4201 of the second bracket. Furthermore, in the direction close to the spindle assembly 100, the third limiting surface 425 may be inclined toward the support surface 4201 of the second bracket. The fourth recess 3225 may include a fourth limiting surface 3227, the plane of which is parallel to the plane of the support surface 3203 of the second rotating member.

[0144] Based on the above structure, and referring to Figures 11 to 13, the second end 320b of the second rotating shaft assembly may further include a third mating surface 3205, and the second support 420 may further include a fourth mating surface 4203. The third mating surface 3205 may be located on the side of the second rotating member 322 near the second support 420, and the fourth mating surface 4203 may be located on the side of the second support 420 near the second rotating member 322. In the direction close to the main shaft assembly 100, the third mating surface 3205 may be inclined away from the support surface 3201 of the second rotating shaft assembly, and the fourth mating surface 4203 may be inclined away from the support surface 4201 of the second support.

[0145] For ease of explanation, in the direction perpendicular to the support surface 3201 of the second rotating shaft assembly, the side where the support surface 3201 of the second rotating shaft assembly is located is referred to as the first side 320A of the second rotating shaft assembly, and the other side opposite to the first side 320A of the second rotating shaft assembly is referred to as the second side 320B of the second rotating shaft assembly.

[0146] As shown in Figures 11 and 15, when the rotating mechanism 10 is in a flat state, in the first direction X, the distance between the first end 315a of the second movable member and the main shaft assembly 100 is greater than the distance between the second end 315b of the second movable member and the main shaft assembly 100. The first end 315a of the second movable member contacts the third limiting surface 425, and the third mating surface 3205 and the fourth mating surface 4203 are parallel to each other. Through the above arrangement, the second support 420 can be prevented from rotating relative to the second rotating shaft assembly 320 towards the second side 320B of the second rotating shaft assembly, thereby improving the support effect of the support surface 4201 of the second support on the flexible screen 30.

[0147] As shown in Figures 12 and 16, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first end 315a of the second movable member rotates relative to the second rotating shaft assembly 320 towards the first side 320A of the second rotating shaft assembly. That is, the first end 315a of the second movable member rotates counterclockwise relative to the second rotating shaft assembly 320, and the plane containing the third mating surface 3205 intersects with the plane containing the fourth mating surface 4203. Through this arrangement, the second rotating shaft assembly 320 rotates counterclockwise relative to the main shaft assembly 100, and the second support 420 rotates counterclockwise relative to the second rotating assembly 320. The angle of rotation of the second support 420 relative to the main shaft assembly 100 is greater than the angle of rotation of the second rotating shaft assembly 320 relative to the main shaft assembly 100; that is, the second support 420 can rotate relative to the second rotating shaft assembly 320.

[0148] As shown in Figures 13 and 17, when the rotating mechanism 10 is in the folded state, the extension direction from the first end 315a to the second end 315b of the second movable member is perpendicular to the second direction Y. The second end 315b of the second movable member contacts the fourth limiting surface 3227, and the third mating surface 3205 and the fourth mating surface 4203 are parallel to each other. With the above arrangement, the second support 420 can be prevented from rotating relative to the second rotating shaft assembly 320 towards the first side 320A of the second rotating shaft assembly, thereby preventing the second support 420 from excessively compressing the flexible screen 30.

[0149] In some embodiments, the first support 410 and the second support 420, the first movable member 313 and the second movable member 315, and the first rotating shaft assembly 310 and the second rotating shaft assembly 320 may have the same structural shape. Alternatively, in some embodiments, the first support 410 and the second support 420, the first movable member 313 and the second movable member 315, and the first rotating shaft assembly 310 and the second rotating shaft assembly 320 may have differences in shape and structure, as long as the above-described motion principle can be achieved.

[0150] Figure 18 is a partial exploded view of another rotating mechanism provided in this application embodiment after removing the first support plate and the second support plate; Figure 19 is a connection structure diagram of another first rotating member and the first bracket (or the second rotating member and the second bracket) provided in this application embodiment. Referring to Figures 18 and 19, the connection method of the first rotating shaft assembly 310 and the first bracket 410, and the connection method of the second rotating shaft assembly 320 and the second bracket 420 in some other embodiments will be briefly described below.

[0151] In some embodiments, the first bracket 410 is connected to the second end 310b of the first rotating shaft assembly, which may include: the first bracket 410 and the second end 310b of the first rotating shaft assembly can be connected by a first sliding post 3128 and a first sliding hole 418, wherein the extension direction of the first sliding post 3128 is parallel to the second direction Y, and the extension direction of the first sliding post 3128 intersects with the extension direction of the first sliding hole 418.

[0152] The first support 410 may include a first sliding hole 418, and the second end 310b of the first rotating shaft assembly may include a first sliding post 3128. For example, the first sliding post 3128 may be generally cylindrical, and the central axis of this cylindrical structure may be parallel to the second direction Y, so that the extension direction of the first sliding post 3128 is parallel to the second direction Y. The first sliding hole 418 may penetrate through the first support 410. For example, the first sliding hole 418 may be generally rectangular. Here, the extension direction of the first sliding hole 418 can be understood as the direction in which the first sliding hole 418 penetrates the first support 410, and the extension direction of the first sliding hole 418 may be perpendicular to the extension direction of the first sliding post 3128. With the above configuration, the first sliding column 3128 can slide within the first sliding hole 418 in the extending direction of the first sliding hole 418, so that the first bracket 410 slides relative to the first rotating shaft assembly 310; simultaneously, the first bracket 410 also rotates about the central axis of the first sliding column 3128, so that the first bracket 410 also rotates relative to the first rotating shaft assembly 310. In summary, when the rotating mechanism 10 transitions from a flat state to a folded state, the first bracket 410 can rotate relative to the first rotating shaft assembly 310.

[0153] Alternatively, in some other embodiments, the positions of the first sliding post 3128 and the first sliding hole 418 may be interchanged. For example, the first support 410 may include the first sliding post 3128, and the second end 310b of the first rotating shaft assembly may include the first sliding hole 418.

[0154] Similarly, the motion principle between the second bracket 420 and the second rotating shaft assembly 320 can be the same as that between the first bracket 410 and the first rotating shaft assembly 310. For example, the second bracket 420 is connected to the second end 320b of the second rotating shaft assembly, including: the second bracket 420 and the second end 320b of the second rotating shaft assembly are connected through a second sliding post 3228 and a second sliding hole 428, wherein the extension direction of the second sliding post 3228 is parallel to the second direction Y, and the extension direction of the second sliding post 3228 intersects the extension direction of the second sliding hole 428.

[0155] The second support 420 includes a second sliding post 3228, and the second end 320b of the second rotating shaft assembly includes a second sliding hole 428. Exemplarily, the second sliding post 3228 may be generally cylindrical, with its central axis parallel to the second direction Y, such that the extension direction of the second sliding post 3228 is parallel to the second direction Y. The second sliding hole 428 may extend through the second support 420. Exemplarily, the second sliding hole 428 may be generally rectangular. Here, the extension direction of the second sliding hole 428 can be understood as the direction in which the second sliding hole 428 penetrates the second support 420, and the extension direction of the second sliding hole 428 may be perpendicular to the extension direction of the second sliding post 3228. With the above configuration, the second sliding column 3228 can slide within the second sliding hole 428 in the extending direction of the second sliding hole 428, allowing the second bracket 420 to slide relative to the second rotating shaft assembly 320. Simultaneously, the second bracket 420 also rotates about the central axis of the second sliding column 3228, allowing it to rotate relative to the second rotating shaft assembly 320. In summary, during the transition from a flat state to a folded state, the second bracket 420 can rotate relative to the second rotating shaft assembly 320.

[0156] Alternatively, in some other embodiments, the positions of the second slide bar 3228 and the second slide hole 428 may be interchanged. For example, the second bracket 420 includes the second slide hole 428, and the second end 320b of the second rotating shaft assembly includes the second slide bar 3228.

[0157] In summary, the first bracket 410 and the second end 310b of the first rotating shaft assembly can be connected by the first sliding column 3128 and the first sliding hole 418, and the second bracket 420 and the second end 320b of the second rotating shaft assembly can be connected by the second sliding column 3228 and the second sliding hole 428. This helps to reduce the number of parts in the rotating mechanism 10, and thus helps to improve the mechanical reliability of the rotating mechanism 10.

[0158] Figure 20 is a cross-sectional view of the rotating structure in Figure 18 along the DD section line when it is in the flat state; Figure 21 is a cross-sectional view of the rotating structure in Figure 18 along the DD section line when it rotates from the flat state to the folded state; Figure 22 is a cross-sectional view of the rotating structure in Figure 18 along the DD section line when it is in the folded state.

[0159] Based on the above structure, as shown in Figure 20, when the rotating mechanism 10 is in a flat state: the first end 418a of the first sliding hole is closer to the support plane S than the second end 418b of the first sliding hole. In the first direction X, the distance between the first end 418a of the first sliding hole and the spindle assembly 100 is greater than the distance between the second end 418b of the first sliding hole and the spindle assembly 100.

[0160] Similarly, when the rotating mechanism 10 is in a flat state: the first end 428a of the second sliding hole is closer to the support plane S than the second end 428b of the second sliding hole. In the first direction X, the distance between the first end 428a of the second sliding hole and the spindle assembly 100 is greater than the distance between the second end 428b of the second sliding hole and the spindle assembly 100.

[0161] As shown in Figure 20, when the rotating mechanism 10 is in a flat state, the first sliding column 3128 can be located at the first end 418a of the first sliding hole. As shown in Figure 21, during the transition of the rotating mechanism 10 from a flat state to a folded state, the first sliding column 3128 can slide from the first end 418a of the first sliding hole to the second end 418b of the first sliding hole, and the first bracket 410 rotates relative to the first sliding column 3128. As shown in Figure 22, when the rotating mechanism 10 is in a folded state, the first sliding column 3128 can be located at the second end 418b of the first sliding hole.

[0162] With the above configuration, during the transition from a flat state to a folded state, the first support 410 slides relative to the first slide post 3128 away from the main shaft assembly 100, and the second support 420 slides relative to the second slide post 3228 away from the main shaft assembly 100. This configuration facilitates adjustment of the length between the first support 410 and the second support 420, ensuring that the length of the flexible screen 30 remains unchanged during the transition from a flat state to a folded state, and mitigating the squeezing or stretching effect of the rotating mechanism 10 on the flexible screen 30.

[0163] Figure 23 is a structural diagram showing the connection between the first support and the first swing arm (or the second support and the second swing arm) in Figure 18. In some embodiments, as shown in Figure 23, the rotating mechanism 10 may include a first swing arm 610 and a second swing arm 620. The first end of the first swing arm 610 may be rotatably connected to the spindle assembly 100, and the second end of the first swing arm 610 may be slidably connected to the first support 410. The first end of the second swing arm 620 may be rotatably connected to the spindle assembly 100, and the second end of the second swing arm 620 may be slidably connected to the second support 420.

[0164] For example, the first support 410 may include a first groove 419, and the first swing arm 610 may include a first slider 612. The first support 410 and the first swing arm 610 can be slidably connected through the first groove 419 and the first slider 612. The extending direction of the first groove 419 may intersect with the second direction Y, and the first slider 612 can slide along the extending direction of the first groove 419. Similarly, the second support 420 may include a second groove 429, and the second swing arm 620 may include a second slider 622. The second support 420 and the second swing arm 620 can be slidably connected through the second groove 429 and the second slider 622. The extending direction of the second groove 429 may intersect with the second direction Y, and the second slider 622 can slide along the extending direction of the second groove 429.

[0165] For example, the spindle assembly 100 may further include a first rotating shaft 161 and a second rotating shaft 162. The extending directions of both the first rotating shaft 161 and the second rotating shaft 162 are parallel to the second direction Y. The first rotating shaft 161 and the second rotating shaft 162 may also be arranged along the first direction X. The main inner shaft 110 and the first swing arm 610 can be rotatably connected via the first rotating shaft 161, and the main inner shaft 110 and the second swing arm 620 can be rotatably connected via the second rotating shaft 162. The first rotating shaft 161 may pass through the through holes of the first swing arm 610 and the main inner shaft 110, so that the first swing arm 610 can rotate relative to the main inner shaft 110. Similarly, the second rotating shaft 162 may pass through the through holes of the second swing arm 620 and the main inner shaft 110, so that the second swing arm 620 can rotate relative to the main inner shaft 110.

[0166] The number of first swing arms 610 can be multiple, and the multiple first swing arms 610 are spaced apart along the second direction Y; the number of second swing arms 620 can also be multiple, and the multiple second swing arms 620 can also be spaced apart along the second direction Y. In some embodiments, the multiple first swing arms 610 can have the same structure, or, as shown in FIG23, the structures of the multiple first swing arms 610 can have certain differences; the multiple second swing arms 620 can have the same structure, or, as shown in FIG23, the structures of the multiple second swing arms 620 can have certain differences.

[0167] Figure 24 is a cross-sectional view of the rotating structure in Figure 18 along the EE section line when it is in the flat state, where the dashed box in the figure is the location of the flexible screen 30; Figure 25 is a cross-sectional view of the rotating structure in Figure 18 along the EE section line when it rotates from the flat state to the folded state; Figure 26 is a cross-sectional view of the rotating structure in Figure 18 along the EE section line when it is in the folded state.

[0168] As shown in Figure 24, when the rotating mechanism 10 is in a flat state, the first swing arm 610, the first support 410, the first rotating shaft assembly 310, at least a portion of the main shaft assembly 100, the second rotating shaft assembly 320, the second support 420, and the second swing arm 620 together constitute the support plane S. For example, the support surface 3101 of the first rotating shaft assembly can be located between the support surface 6101 of the first swing arm and the support surface 1001 of the main shaft assembly, and the support surface 6101 of the first swing arm can be arranged along the second direction Y with the support surface 4101 of the first support; the support surface 3201 of the second rotating shaft assembly can be located between the support surface 6201 of the second swing arm and the support surface 1001 of the main shaft assembly, and the support surface 6201 of the second swing arm can be arranged along the second direction Y with the support surface 4201 of the second support. Through the above arrangement, the support effect of the rotating mechanism 10 on the flexible screen 30 is improved.

[0169] As shown in Figure 25, during the transition from a flat state to a folded state, the second end of the first support 410 relative to the first swing arm 610 slides away from the main shaft assembly 100, and the second support 420 relative to the second swing arm 620 slides away from the main shaft assembly 100. This arrangement facilitates adjustment of the length between the first support 410 and the second support 420. During the transition from a flat state to a folded state, it helps ensure that the length of the flexible screen 30 remains unchanged, thus mitigating the squeezing or stretching effect of the rotating mechanism 10 on the flexible screen 30.

[0170] As shown in Figure 26, when the rotating mechanism 10 is in the folded state, in the first direction X, the distance between the support surface 6101 of the first swing arm and the support surface 6201 of the second swing arm (distance D3 in Figure 26) is greater than the first distance D1. For example, since the distance between the first swing arm 610 and the second swing arm 620 is increased, the first swing arm 610 and the second swing arm 620 are prevented from extending into the receiving space N jointly enclosed by the first rotating shaft assembly 310, the second rotating shaft assembly 320, and the main shaft assembly 100. This helps to further prevent the first swing arm 610 and the second swing arm 620 from squeezing the flexible screen 30 located in the receiving space N, thereby improving the reliability of the flexible screen 30.

[0171] As shown in Figure 24, in the direction perpendicular to the support surface 3101 of the first rotating shaft assembly, the flexible screen 30 is located on the first side 310A of the first rotating shaft assembly. A portion of the first swing arm 610 can be located between the first rotating shaft assembly 310 and the first bracket 410; for example, a portion of the first swing arm 610 can be located between the first support plate 311 and the first bracket 410. In the direction perpendicular to the support surface 3201 of the second rotating shaft assembly, the flexible screen 30 is located on the first side 320A of the second rotating shaft assembly. A portion of the second swing arm 620 can be located between the second rotating shaft assembly 320 and the second bracket 420; for example, a portion of the second swing arm 620 can be located between the second support plate 321 and the second bracket 420. For example, a portion of the first swing arm 610 can be located on the side of the first support plate 311 away from the flexible screen 30, and a portion of the second swing arm 620 can be located on the side of the second support plate 321 away from the flexible screen 30.

[0172] With the above arrangement, the flexible screen 30, the first rotating shaft assembly 310, and part of the first swing arm 610 can be stacked sequentially in the direction perpendicular to the support surface 3101 of the first rotating shaft assembly, and the flexible screen 30, the second rotating shaft assembly 320, and part of the second swing arm 620 can be stacked sequentially in the direction perpendicular to the support surface 3201 of the second rotating shaft assembly. This is beneficial to improving the compactness of the internal components of the rotating mechanism 10 and reducing the space occupied by the rotating mechanism 10.

[0173] Figure 27 is an exploded view of the first rotating member and the first swing arm (or the second rotating member and the second swing arm) provided in the embodiment of this application from a first perspective; Figure 28 is an exploded view of the first rotating member and the first swing arm (or the second rotating member and the second swing arm) provided in the embodiment of this application from a second perspective.

[0174] Referring to Figures 27 and 28, the first swing arm 610 and the first rotating shaft assembly 310 can be slidably connected via a first guide groove 317 and a first guide post 617. The first rotating shaft assembly 310 includes the first guide groove 317, and the first swing arm 610 includes the first guide post 617. For example, the surface of the first rotating member 312 facing the first swing arm 610 is recessed along the second direction Y to form the first guide groove 317, and the surface of the first swing arm 610 facing the first rotating member 312 is protruded along the second direction Y to form the first guide post 617. The first guide post 617 can be slidably connected to the first guide groove 317, thereby achieving a slidable connection between the first swing arm 610 and the first rotating shaft assembly 310.

[0175] Alternatively, in some other embodiments, the positions of the first guide groove 317 and the first guide post 617 can be interchanged. For example, the first swing arm 610 includes the first guide post 617, and the first rotating shaft assembly 310 includes the first guide groove 317.

[0176] Figure 29 is a cross-sectional view of the rotating structure in Figure 18 along the FF section line when it is in the flat state; Figure 30 is a cross-sectional view of the rotating structure in Figure 18 along the FF section line when it rotates from the flat state to the folded state; Figure 31 is a cross-sectional view of the rotating structure in Figure 18 along the FF section line when it is in the folded state.

[0177] Referring to Figures 29 to 31, the first guide groove 317 may include a first groove segment 3171 and a second groove segment 3172. The first groove segment 3171 is closer to the main spindle assembly 100 than the second groove segment 3172, and the extension direction of the second groove segment 3172 may be parallel to the support surface 3101 of the first rotating shaft assembly. In the direction close to the main spindle assembly 100, the extension direction of the first groove segment 3171 is inclined towards the support surface 3101 of the first rotating shaft assembly. For example, when the rotating mechanism 10 is in a flat state, at least a portion of the first guide post 617 is located within the second groove segment 3172; when the rotating mechanism 10 is in a folded state, at least a portion of the first guide post 617 is located within the first groove segment 3171.

[0178] During the transition from a flat state to a folded state, the first guide post 617 slides from the second groove segment 3172 to the first groove segment 3171. With this configuration, when the first guide post 617 slides within the second groove segment 3172, the first swing arm 610 and the first rotating member 312 can rotate synchronously. At this time, the first swing arm 610 slides relative to the first rotating member 312. When the first guide post 617 slides from the second groove segment 3172 to the first groove segment 3171, the first swing arm 610 rotates relative to the first rotating member 312, so that the rotation angle of the first swing arm 610 relative to the main shaft assembly 100 is less than the rotation angle of the first rotating member 312 relative to the main shaft assembly 100.

[0179] Similarly, the second swing arm 620 and the second rotating shaft assembly 320 can be slidably connected via the second guide groove 327 and the second guide post 627; wherein the second rotating shaft assembly 320 includes the second guide groove 327, and the second swing arm 620 includes the second guide post 627. Exemplarily, the surface of the second rotating member 322 facing the second swing arm 620 is recessed along the second direction Y to form the second guide groove 327, and the surface of the second swing arm 620 facing the second rotating member 322 is protruded along the second direction Y to form the second guide post 627. The second guide post 627 can be slidably connected to the second guide groove 327, thereby achieving a slidable connection between the second swing arm 620 and the second rotating shaft assembly 320.

[0180] Alternatively, in some other embodiments, the positions of the second guide groove 327 and the second guide post 627 may be interchanged. For example, the second swing arm 620 includes the second guide post 627, and the second pivot assembly 320 includes the second guide groove 327.

[0181] Referring to Figures 29 to 31, the second guide groove 327 may include a third groove segment 3271 and a fourth groove segment 3272. The third groove segment 3271 is closer to the main shaft assembly 100 than the fourth groove segment 3272. The extension direction of the fourth groove segment 3272 is parallel to the support surface 3201 of the second rotating shaft assembly. In the direction closer to the main shaft assembly 100, the third groove segment 3271 is inclined towards the support surface 3201 of the second rotating shaft assembly. During the transition from a flat state to a folded state, the second guide post 627 slides from the fourth groove segment 3272 to the third groove segment 3271.

[0182] With the above configuration, when the second guide post 627 slides within the fourth groove segment 3272, the second swing arm 620 and the second rotating member 322 can rotate synchronously. At this time, the second swing arm 620 slides relative to the second rotating member 322. When the second guide post 627 slides from the fourth groove segment 3272 to the third groove segment 3271, the second swing arm 620 rotates relative to the second rotating member 322, so that the rotation angle of the second swing arm 620 relative to the main shaft assembly 100 is less than the rotation angle of the second rotating member 322 relative to the main shaft assembly 100. Of course, in some other embodiments, the shapes of the first guide groove 317 and the second guide groove 327 can also be arcs or other shapes, and this application embodiment does not specifically limit this.

[0183] Figure 32 is an exploded view of a spindle assembly provided in an embodiment of this application; Figure 33 is an exploded view of a main inner spindle provided in an embodiment of this application.

[0184] Based on the above structure, as shown in Figures 32 and 33, the spindle assembly 100 may further include a damping slider 800 and an elastic body 700. The damping slider 800 is slidably connected to the inner spindle 110 along the second direction Y. In some embodiments, there may be two damping sliders 800, arranged along the second direction Y. The first end of the elastic body 700 is connected to one damping slider 800, and the second end of the elastic body 700 is connected to the other damping slider 800. In some other embodiments, there may be only one damping slider 800, with the first end of the elastic body 700 connected to the inner spindle 110 and the second end of the elastic body 700 connected to the damping slider 800. The second direction Y may be the extending direction of the spindle assembly 100.

[0185] For example, the spindle assembly 100 may further include a first rotating shaft 161 and a second rotating shaft 162, the extension directions of which are both parallel to the second direction Y. The inner spindle 110 also includes a synchronous slide groove 180, to which the damping slider 800 can be slidably connected. The damping slider 800 may further include a first through hole 821 and a second through hole 822, with the first rotating shaft 161 passing through the first through hole 821 and the second rotating shaft 162 passing through the second through hole 822. With the above configuration, the damping slider 800 can be slidably connected to the inner spindle 110 along the second direction Y, and the damping slider 800 can also be slidably connected to the first rotating shaft 161 and the second rotating shaft 162 along the second direction Y, respectively.

[0186] Referring to Figures 27 and 28, the first end of the first swing arm 610 may include a third through hole 613, and the first rotating shaft 161 is also inserted through the third through hole 613. This arrangement allows the first end of the first swing arm 610 to be rotatably connected to the spindle assembly 100. The first end of the second swing arm 620 may include a fourth through hole 623, and the second rotating shaft 162 is also inserted through the fourth through hole 623. This arrangement allows the first end of the second swing arm 620 to be rotatably connected to the spindle assembly 100.

[0187] The elastic body 700 may include a first spring 710 and a second spring 720, wherein the first spring 710 may be sleeved outside the first rotating shaft 161, and the second spring 720 may be sleeved outside the second rotating shaft 162. The first end of the elastic element is connected to the main inner shaft 110, which may include: the first end of the first spring 710 being fixedly connected to the first rotating shaft 161 by a retaining ring, and the first end of the second spring 720 being fixedly connected to the second rotating shaft 162 by a retaining ring. The second end of the elastic element contacts the damping slider 800, which may include: the second end of the first spring 710 contacting the damping slider 800, and the second end of the second spring 720 contacting the damping slider 800.

[0188] Furthermore, the first swing arm 610 includes a first concave-convex surface 618, the damping slider 800 includes a second concave-convex surface 811 that mates with the first concave-convex surface 618, the second swing arm 620 includes a third concave-convex surface 628, and the damping slider 800 includes a fourth concave-convex surface 812 that mates with the third concave-convex surface 628.

[0189] For example, a first concave-convex surface 618 may be adjacent to a third through hole 613 of a first rocker arm 610. In the direction surrounding the central axis of the third through hole 613 of the first rocker arm 610, the first concave-convex surface 618 may include alternating convex and concave surfaces. A second concave-convex surface 811 may be adjacent to a first through hole 821 of a damping slider 800. In the direction surrounding the central axis of the first through hole 821 of the damping slider 800, the second concave-convex surface 811 may include alternating convex and concave surfaces. Similarly, a third concave-convex surface 628 may be adjacent to a fourth through hole 623 of a second rocker arm 620. In the direction surrounding the central axis of the fourth through hole 623 of the second rocker arm 620, the third concave-convex surface 628 may include alternating convex and concave surfaces. The fourth concave-convex surface 812 is adjacent to the second through hole 822 of the damping slider 800. In the direction surrounding the central axis of the second through hole 822 of the damping slider 800, the fourth concave-convex surface 812 may include alternating convex and concave surfaces.

[0190] When the rotating mechanism 10 rotates to the first position, the first swing arm 610 rotates relative to the main shaft assembly 100 to the first position, and the second swing arm 620 rotates relative to the main shaft assembly 100 to the first position: the elastic body 700 is in a first compressed state. When the rotating mechanism 10 rotates to the second position, the first swing arm 610 rotates relative to the main shaft assembly 100 to the second position, and the second swing arm 620 rotates relative to the main shaft assembly 100 to the second position: the elastic body 700 is in a second compressed state.

[0191] In some examples, when the first swing arm 610 rotates relative to the main shaft assembly 100 to a first position, the rotating mechanism 10 can be in a flat or folded state; when the first swing arm 610 rotates relative to the main shaft assembly 100 to a second position, the rotating mechanism 10 can be in a state transitioning from a flat to a folded state. At this time, the length of the elastic element in the first compressed state is greater than the length of the elastic element in the second compressed state.

[0192] When the first swing arm 610 rotates relative to the main shaft assembly 100 from the first position to the second position, the first swing arm 610 also rotates relative to the first rotating shaft 161. Since the first concave-convex surface 618 of the first swing arm 610 engages with the second concave-convex surface 811 of the damping slider 800, the first swing arm 610 drives the damping slider 800 to slide relative to the first rotating shaft 161 along the second direction Y. The damping slider 800 drives the first spring 710 to compress and deform. The elastic restoring force of the first spring 710 acts as a damping force, thus providing a damping effect when the first swing arm 610 rotates relative to the first rotating shaft 161.

[0193] Simultaneously, when the second swing arm 620 rotates relative to the main shaft assembly 100 from the first position to the second position, the second swing arm 620 rotates relative to the second rotating shaft 162. Since the third concave-convex surface 628 of the second swing arm 620 engages with the fourth concave-convex surface 812 of the damping slider 800, the second swing arm 620 drives the damping slider 800 to slide relative to the second rotating shaft 162 along the second direction Y. The damping slider 800 drives the second spring 720 to compress and deform. The elastic restoring force of the second spring 720 acts as a damping force, thus providing a damping effect when the second swing arm 620 rotates relative to the second rotating shaft 162.

[0194] Furthermore, the spindle assembly 100 may also include a synchronization slider 900, a first rotating shaft 161 which may pass through one through hole of the synchronization slider 900, and a second rotating shaft 162 which may pass through another through hole of the synchronization slider 900. The main inner shaft 110 may also include a mating groove 190, with the synchronization slider 900 slidably connected to the mating groove 190, so that the synchronization slider 900 and the main inner shaft 110 are slidably connected along the second direction Y.

[0195] The first swing arm 610 may include two third through holes 613, and the synchronous slider 900 may be located between the two third through holes 613 of the first swing arm 610. Furthermore, the synchronous slider 900 may also include a first helical surface 910, which may be adjacent to the through holes of the synchronous slider 900. The first swing arm 610 may also include a second helical surface 619 that mates with the first helical surface 910, which may be adjacent to the third through holes 613 of the first swing arm 610.

[0196] Similarly, the second swing arm 620 may include two fourth through holes 623, and the synchronous slider 900 may be located between the two fourth through holes 623 of the second swing arm 620. Furthermore, the synchronous slider 900 may also include a third helical surface 920, which may be adjacent to the through holes of the synchronous slider 900. The second swing arm 620 may also include a fourth helical surface 629 that mates with the third helical surface 920, and the fourth helical surface 629 may be adjacent to the fourth through holes 623 of the second swing arm 620.

[0197] When the first swing arm 610 rotates relative to the main shaft assembly 100 from the first position to the second position, the first swing arm 610 rotates relative to the first rotating shaft 161. Because the first helical surface 910 of the first swing arm 610 engages with the second helical surface 619 of the synchronous slider 900, the first swing arm 610 drives the synchronous slider 900 to slide relative to the main inner shaft 110 along the second direction Y. Because the third helical surface 920 of the second swing arm 620 engages with the fourth helical surface 629 of the synchronous slider 900, the second swing arm 620 rotates relative to the second rotating shaft 162.

[0198] With the above configuration, while the first swing arm 610 rotates relative to the first rotating shaft assembly 310, the second swing arm 620 can rotate relative to the second rotating shaft assembly 320, thereby achieving synchronous movement of the first swing arm 610 and the second swing arm 620.

[0199] Of course, in some other embodiments, the first swing arm 610 and the second swing arm 620 can also achieve synchronous movement through other structures, and this application embodiment does not specifically limit this. For example, the first swing arm 610 may also include a first gear, and correspondingly, the first rotating shaft 161 may also include a second gear meshing with the first gear; the second swing arm 620 may also include a third gear, and correspondingly, the second rotating shaft 162 may also include a fourth gear meshing with the third gear. Furthermore, the second gear also meshes with the fourth gear. Through the meshing drive between the aforementioned gears, when the first swing arm 610 rotates relative to the main shaft assembly 100, the second swing arm 620 can rotate synchronously relative to the main shaft assembly 100, thereby achieving synchronous movement between the first swing arm 610 and the second swing arm 620.

[0200] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotating mechanism, characterized in that, include: Spindle assembly; A first rotating shaft assembly and a second rotating shaft assembly, wherein the main shaft assembly is located between the first rotating shaft assembly and the second rotating shaft assembly, a first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly, and a first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly; A first bracket and a second bracket, wherein the first bracket is connected to the second end of the first rotating shaft assembly, and the second bracket is connected to the second end of the second rotating shaft assembly; When the rotating mechanism is in a flat state: the second end of the first rotating shaft assembly, the first end of the first rotating shaft assembly, the first end of the second rotating shaft assembly, and the second end of the second rotating shaft assembly are arranged sequentially along the first direction, and the first bracket, the first rotating shaft assembly, at least a portion of the main shaft assembly, the second rotating shaft assembly, and the second bracket together constitute a support plane; During the transition of the rotating mechanism from the flat state to the folded state, the first rotating shaft assembly rotates relative to the main shaft assembly, the first bracket rotates relative to the first rotating shaft assembly, the second rotating shaft assembly rotates relative to the main shaft assembly, and the second bracket rotates relative to the second rotating shaft assembly. When the rotating mechanism is in a folded state: the first rotating shaft assembly, the second rotating shaft assembly, and the main shaft assembly together form a receiving space; the support surface of the first rotating shaft assembly is parallel to the support surface of the second rotating shaft assembly, and both the support surfaces of the first rotating shaft assembly and the second rotating shaft assembly are perpendicular to the first direction. In the first direction, the distance between the support surfaces of the first rotating shaft assembly and the second rotating shaft assembly is a first distance, and the distance between the support surfaces of the first bracket and the second bracket is less than the first distance.

2. The rotating mechanism according to claim 1, characterized in that, The first bracket is connected to the second end of the first rotating shaft assembly, including: the first bracket is connected to the second end of the first rotating shaft assembly via a first movable member; wherein, the first bracket is rotatably connected to the first end of the first movable member, and the second end of the first movable member is rotatably connected to the second end of the first rotating shaft assembly; The second bracket is connected to the second end of the second rotating shaft assembly, including: the second bracket and the second end of the second rotating shaft assembly are connected via a second movable member; wherein the second bracket is rotatably connected to the first end of the second movable member, and the second end of the second movable member is rotatably connected to the second end of the second movable member assembly.

3. The rotating mechanism according to claim 1, characterized in that, The first bracket is connected to the second end of the first rotating shaft assembly, comprising: the first bracket and the second end of the first rotating shaft assembly are connected through a first sliding post and a first sliding hole, wherein the extension direction of the first sliding post is parallel to the second direction, and the extension direction of the first sliding post intersects the extension direction of the first sliding hole; wherein, the first bracket includes the first sliding post, and the second end of the first rotating shaft assembly includes the first sliding hole; or, the first bracket includes the first sliding hole, and the second end of the first rotating shaft assembly includes the first sliding post; The second bracket is connected to the second end of the second rotating shaft assembly, comprising: the second bracket and the second end of the second rotating shaft assembly are connected through a second sliding post and a second sliding hole, wherein the extension direction of the second sliding post is parallel to a second direction, and the extension direction of the second sliding post intersects the extension direction of the second sliding hole; wherein, the second bracket includes a second sliding post, and the second end of the second rotating shaft assembly includes a second sliding hole; or, the second bracket includes a second sliding hole, and the second end of the second rotating shaft assembly includes a second sliding post; The second direction is the extension direction of the spindle assembly.

4. The rotating mechanism according to claim 3, characterized in that, When the rotating mechanism is in a flat state: the first end of the first sliding hole is closer to the supporting plane than the second end of the first sliding hole, and in the first direction, the distance between the first end of the first sliding hole and the spindle assembly is greater than the distance between the second end of the first sliding hole and the spindle assembly; the first end of the second sliding hole is closer to the supporting plane than the second end of the second sliding hole, and in the first direction, the distance between the first end of the second sliding hole and the spindle assembly is greater than the distance between the second end of the second sliding hole and the spindle assembly.

5. The rotating mechanism according to any one of claims 1-4, characterized in that, During the transition of the rotating mechanism from the flat state to the folded state, the first rotating shaft assembly rotates relative to the main shaft assembly by a first angle, and the second rotating shaft assembly rotates relative to the main shaft assembly by a first angle; the first bracket rotates relative to the main shaft assembly by a second angle, and the second bracket rotates relative to the main shaft assembly by a second angle, wherein the second angle is greater than the first angle.

6. The rotating mechanism according to any one of claims 1-5, characterized in that, The rotating mechanism includes a first swing arm and a second swing arm. The first end of the first swing arm is rotatably connected to the main shaft assembly, and the second end of the first swing arm is slidably connected to the first bracket. The first end of the second swing arm is rotatably connected to the main shaft assembly, and the second end of the second swing arm is slidably connected to the second bracket. When the rotating mechanism is in the flat state, the first swing arm, the first bracket, the first rotating shaft assembly, the main shaft assembly, the second rotating shaft assembly, the second bracket, and the second swing arm together constitute the supporting plane; During the transition of the rotating mechanism from the flat state to the folded state, the first bracket slides away from the main shaft assembly relative to the second end of the first swing arm, and the second bracket slides away from the main shaft assembly relative to the second end of the second swing arm. When the rotating mechanism is in the folded state, in the first direction, the distance between the support surface of the first swing arm and the support surface of the second swing arm is greater than the first distance.

7. The rotating mechanism according to claim 6, characterized in that, In a direction perpendicular to the support surface of the first pivot assembly, a portion of the first swing arm is located between the first pivot assembly and the first bracket; in a direction perpendicular to the support surface of the second pivot assembly, a portion of the second swing arm is located between the second pivot assembly and the second bracket.

8. The rotating mechanism according to claim 6 or 7, characterized in that, The first swing arm and the first rotating shaft assembly are slidably connected by a first guide groove and a first guide post; wherein, the first swing arm includes a first guide groove and the first rotating shaft assembly includes a first guide post; or, the first swing arm includes a first guide post and the first rotating shaft assembly includes a first guide groove. The second swing arm and the second rotating shaft assembly are slidably connected by a second guide groove and a second guide post; wherein the second swing arm includes a second guide groove and the second rotating shaft assembly includes a second guide post; or, the second swing arm includes a second guide post and the second rotating shaft assembly includes a second guide groove.

9. The rotating mechanism according to claim 8, characterized in that, The first guide groove includes a first groove segment and a second groove segment. The first groove segment is closer to the main spindle assembly than the second groove segment. The extension direction of the second groove segment is parallel to the support surface of the first rotating shaft assembly. In the direction closer to the main spindle assembly, the extension direction of the first groove segment is inclined towards the support surface of the first rotating shaft assembly. The second guide groove includes a third groove segment and a fourth groove segment. The third groove segment is closer to the main spindle assembly than the fourth groove segment. The extension direction of the fourth groove segment is parallel to the support surface of the second rotating shaft assembly. In the direction closer to the main spindle assembly, the extension direction of the third groove segment is inclined towards the support surface of the second rotating shaft assembly. During the transition of the rotating mechanism from the flat state to the folded state, the first guide post slides from the second groove segment to the first groove segment, and the second guide post slides from the fourth groove segment to the third groove segment.

10. The rotating mechanism according to any one of claims 6-9, characterized in that, The spindle assembly includes a main inner spindle and a synchronous slider. The synchronous slider is slidably connected to the main inner spindle along a second direction, which is the extension direction of the spindle assembly. The first swing arm includes a first helical surface, the synchronous slider includes a second helical surface that mates with the first helical surface, the second swing arm includes a third helical surface, and the synchronous slider includes a fourth helical surface that mates with the third helical surface.

11. The rotating mechanism according to any one of claims 6-9, characterized in that, The spindle assembly includes a main inner spindle, a damping slider, and an elastic body. The damping slider is slidably connected to the main inner spindle along a second direction. The first end of the elastic body is connected to the main inner spindle, and the second end of the elastic body contacts the damping slider. The second direction is the extension direction of the spindle assembly. The first swing arm includes a first concave-convex surface, the damping slider includes a second concave-convex surface that mates with the first concave-convex surface, the second swing arm includes a third concave-convex surface, and the damping slider includes a fourth concave-convex surface that mates with the third concave-convex surface. When the rotating mechanism rotates to the first position: the elastic body is in a first compressed state; When the rotating mechanism rotates to the second position, the elastic body is in a second compressed state.

12. The rotating mechanism according to any one of claims 1-11, characterized in that, The first rotating shaft assembly includes a first rotating member and a first support plate fixedly connected together. The first support plate and the first rotating member together constitute the support surface of the first rotating shaft assembly. The first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly, including: the first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly through the first rotating member. The second end of the first rotating shaft assembly is connected to the first bracket, including: the second end of the first rotating shaft assembly is connected to the first bracket through the first rotating member. The second rotating shaft assembly includes a second rotating member and a second support plate that are fixedly connected. The second support plate and the second rotating member together form the support surface of the second rotating shaft assembly. The first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly, including: the first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly through the second rotating member. The second end of the first rotating shaft assembly is connected to the first bracket, including: the second end of the second rotating shaft assembly is connected to the first bracket through the second rotating member.

13. The rotating mechanism according to claim 12, characterized in that, The first end of the first rotating shaft assembly is rotatably connected to the main shaft assembly via the first rotating member, including: the first rotating member and the main shaft assembly are rotatably connected via a first arc-shaped groove and a first arc-shaped slider; wherein, the main shaft assembly includes the first arc-shaped groove, and the first rotating member includes the first arc-shaped slider; or, the main shaft assembly includes the first arc-shaped slider, and the first rotating member includes the first arc-shaped groove; The first end of the second rotating shaft assembly is rotatably connected to the main shaft assembly via a second rotating member, including: the second rotating member and the main shaft assembly are rotatably connected via a second arc-shaped groove and a second arc-shaped slider; wherein, the main shaft assembly includes the second arc-shaped groove, and the second rotating member includes the second arc-shaped slider; or, the main shaft assembly includes the second arc-shaped slider, and the second rotating member includes the second arc-shaped groove.

14. The rotating mechanism according to any one of claims 1-13, characterized in that, The rotating mechanism further includes a flexible support member, which is connected to the main shaft assembly; When the rotating mechanism is in a flat state: in a direction perpendicular to the support plane, the support surface of the first bracket extends beyond the support surface of the first rotating shaft assembly, the support surface of the second bracket extends beyond the support surface of the second rotating shaft assembly, and there is a first gap between the support surface of the first bracket and the support surface of the first rotating shaft assembly. The flexible support member is in a flat state, and the first bracket, the first rotating shaft assembly, the main shaft assembly, the second rotating shaft assembly, and the second bracket together constitute the support plane, including: the first rotating shaft assembly, the main shaft assembly, and the second rotating shaft assembly, through the flexible support member, together with the support surfaces of the first bracket and the second bracket, constitute the support plane; During the transition of the rotating mechanism from the flat state to the folded state, the flexible support member bends. When the rotating mechanism is in a folded state: the flexible support is in a bent state, and in the first direction, there is a second distance between the support surface of the first bracket and the support surface of the first rotating shaft assembly, the second distance being greater than the first distance.

15. The rotating mechanism according to any one of claims 1-14, characterized in that, The spindle assembly includes an inner spindle and an outer spindle stacked along a third direction. At least a portion of the inner spindle forms the support plane. The support surface of the inner spindle is recessed in the direction close to the outer spindle. The third direction is perpendicular to the first direction.

16. A foldable electronic device, characterized in that, include: The flexible screen, the first structural component, the second structural component, and the rotating mechanism as described in any one of claims 1-15; The first structural member and the second structural member are connected to both sides of the rotating mechanism, and the flexible screen is located on the same side of the first structural member and the second structural member, and is connected to the first structural member and the second structural member; When the foldable electronic device is in the unfolded state, the support plane of the rotating mechanism is used to support the flexible screen; When the foldable electronic device is in a folded state, the first support door plate of the rotating mechanism, the second support door plate of the rotating mechanism, and the main shaft assembly of the rotating mechanism together enclose an accommodating space, and part of the flexible screen is located within the accommodating space.

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