Folding electronic device

Abstract

This application provides a foldable electronic device to improve the small display area when the foldable electronic device is unfolded. The foldable electronic device includes: a flexible screen, a first structural component, a second structural component, a third structural component, a first rotating mechanism, and a second rotating mechanism. The first rotating mechanism connects the first and second structural components, and the second rotating mechanism connects the second and third structural components. The first rotating mechanism includes a first main shaft, a first synchronous slider, and a first rotating component. The first synchronous slider can slide relative to the first main shaft along a first direction. The first rotating component is rotatably connected to the first main shaft, and a portion of the first synchronous slider can be embedded within the first rotating component and contact the first rotating component via a helical surface. The second rotating mechanism includes a second main shaft and a third rotating shaft assembly, and the third rotating shaft assembly is rotatably connected to the second main shaft. By providing the first and second rotating mechanisms, the display area of ​​the foldable electronic device can be increased.

Description

Technical Field

[0001] This application relates to the field of electronic products, and more particularly to a foldable electronic device. Background Technology

[0002] 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.

[0003] 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. Traditional dual-screen foldable electronic devices also suffer from a relatively small display area when unfolded. Summary of the Invention

[0004] This application provides a foldable electronic device to improve the problem of a small display area when the foldable electronic device is unfolded.

[0005] To achieve the above objectives, the embodiments of this application provide the following solutions:

[0006] A foldable electronic device is provided, comprising: a flexible screen, a first structural member, a second structural member, and a third structural member. The first, second, and third structural members are located on the same side of the flexible screen. The foldable electronic device further includes a first rotating mechanism and a second rotating mechanism. The first rotating mechanism connects the first and second structural members, and the second rotating mechanism connects the second and third structural members.

[0007] When the foldable electronic device is in the unfolded state, the third structural component, the second structural component, and the first structural component are arranged in sequence along the second direction. The first structural component, the first rotating mechanism, the second structural component, the second rotating mechanism, and the third structural component together constitute a support plane for supporting the flexible screen.

[0008] When the foldable electronic device is in a folded state, the first structural component, the second structural component, and the third structural component are stacked along a third direction, which is perpendicular to the first direction and the second direction, respectively.

[0009] The first rotating mechanism includes a first rotating shaft assembly, a first main shaft, and a second rotating shaft assembly. The first main shaft extends along a first direction, and a second direction is perpendicular to the first direction. A first synchronous slider is slidably connected to the first main shaft. The first synchronous slider can slide relative to the first main shaft along the first direction. The first synchronous slider includes a first helical surface and a second helical surface, and the direction of rotation of the first helical surface is opposite to that of the second helical surface.

[0010] The first rotating shaft assembly includes a first rotating component and a first fixed frame. A first end of the first rotating component is rotatably connected to a first main shaft, and a second end of the first rotating component is connected to the first fixed frame. The first end of the first rotating component includes a first groove, and a portion of the first synchronized slider is disposed within the first groove. The groove wall of the first groove includes a third helical surface that mates with a first helical surface. The first fixed frame is fixedly connected to a first structural component. The second rotating shaft assembly includes a second rotating component and a second fixed frame. A first end of the second rotating component is rotatably connected to the first main shaft, and a second end of the second rotating component is connected to the second fixed frame. The first end of the second rotating component includes a second groove, and a portion of the first synchronized slider is disposed within the second groove. The groove wall of the second groove includes a fourth helical surface that mates with a second helical surface. The second fixed frame is fixedly connected to a second structural component.

[0011] With the above configuration, part of the first synchronizing slider can be embedded in the first rotating component, and part of the synchronizing component can also be embedded in the second rotating component. This helps to reduce the space occupied by the synchronizing component in the first direction, making the space of the rotating mechanism in the first direction more ample. In embodiments where the rotating mechanism includes multiple rotating modules, and each rotating module includes a first rotating shaft assembly, a second rotating shaft assembly, and a synchronizing component, it is beneficial to increase the number of rotating modules in the rotating mechanism, thereby improving the rotation effect of the foldable electronic device.

[0012] Furthermore, with the above configuration, when the first rotating member rotates relative to the main shaft, the third helical surface rotates along with the first rotating member, so that the third helical surface, through the cooperating first helical surface, pushes the synchronizing member to slide relative to the main shaft. The second helical surface of the synchronizing member moves along with the synchronizing member, so that the second helical surface, through the cooperating fourth helical surface, pushes the second rotating member to rotate relative to the main shaft. In summary, the first rotating member and the second rotating member can rotate synchronously relative to the main shaft, so that the first rotating shaft assembly and the second rotating shaft assembly can achieve synchronous rotation.

[0013] The second rotating mechanism includes a third rotating shaft assembly, a second main shaft, and a fourth rotating shaft assembly, with the second main shaft extending along a first direction.

[0014] The first end of the third rotating shaft assembly is rotatably connected to the second main shaft, and the second end of the third rotating shaft assembly is fixedly connected to the second structural component; the first end of the fourth rotating shaft assembly is rotatably connected to the second main shaft, and the second end of the fourth rotating shaft assembly is fixedly connected to the third structural component.

[0015] With the above configuration, the third structural component and the second structural component can be connected together via the second rotating mechanism. The second structural component can rotate relative to the second main shaft via the third rotating component, and the third structural component can rotate relative to the second main shaft via the fourth rotating component. When the folding electronic device switches between the unfolded and folded states, the third structural component can rotate relative to the second structural component via the second rotating mechanism, thereby realizing the folding or unfolding of the third structural component relative to the second structural component.

[0016] In summary, by setting the first rotating mechanism, the first structural component can be folded or unfolded relative to the second structural component; by setting the second rotating mechanism, the third structural component can be folded or unfolded relative to the second structural component, so that the foldable electronic device can switch between the unfolded state and the folded state. When the foldable electronic device is in the unfolded state, it is beneficial to increase the display area of ​​the foldable electronic device and improve the user experience.

[0017] In some embodiments, when the foldable electronic device is in the unfolded state, the orthographic projection of the first end of the second spiral surface on the reference surface, the orthographic projection of the second end of the second spiral surface on the reference surface, the orthographic projection of the second end of the first spiral surface on the reference surface, and the orthographic projection of the first end of the first spiral surface on the reference surface are arranged sequentially in the second direction, and the reference surface is perpendicular to the first direction.

[0018] The first end and the second end of the first spindle are arranged along a first direction. In the first direction, the distance between the first end of the first helical surface and the first end of the first spindle is less than the distance between the second end of the first helical surface and the first end of the first spindle, and the distance between the first end of the second helical surface and the first end of the first spindle is less than the distance between the second end of the second helical surface and the first end of the first spindle.

[0019] With the above configuration, the first helical surface can be a surface that rotates less than or equal to one-quarter of a turn around its axis, and the second helical surface can also be a surface that rotates less than or equal to one-quarter of a turn around its axis, with the two helical surfaces rotating in opposite directions. Compared to setting the first and second helical surfaces as surfaces that rotate one turn around the axis, the space occupied by the first and second helical surfaces can be reduced, which is beneficial to reducing the volume of the synchronizing component.

[0020] In some embodiments, during the transition of the first rotating mechanism from an unfolded state to a folded state, the first synchronous slider moves relative to the first main shaft in a direction pointing from the first end of the first main shaft to the second end of the first main shaft. During the transition of the first rotating mechanism from a folded state to an unfolded state, the first synchronous slider moves relative to the first main shaft in a direction pointing from the second end of the first main shaft to the first end of the first main shaft.

[0021] With the above settings, during the transition between the folded and unfolded states of the rotating mechanism, the sliding direction of the synchronizing member relative to the main shaft is unidirectional. The synchronizing member can apply a fixed-direction pushing force to the first or second rotating member so that both the first and second rotating members rotate synchronously relative to the main shaft, and the rotation direction of the first rotating member relative to the main shaft is opposite to that of the second rotating member relative to the main shaft.

[0022] In some embodiments, the first rotating mechanism further includes a first damping slider and a first elastic member, the first elastic member being disposed on the first main shaft along a first direction. The first damping slider is slidably connected to the first main shaft and can slide relative to the first main shaft along the first direction. A first end of the first damping slider contacts the first elastic member, and a second end of the first damping slider includes a first concave-convex surface and a second concave-convex surface. A first end of the first rotating member includes a third concave-convex surface that mates with the first concave-convex surface, and a first end of the second rotating member includes a fourth concave-convex surface that mates with the second concave-convex surface.

[0023] With the above configuration, during the transition between the unfolded and folded states of the first rotating mechanism, the first and second rotating components drive the damping component to slide relative to the main shaft along the first direction, and the damping component drives the elastic component to compress and deform. The elastic restoring force of the elastic component acts as a damping force, so that the first and second rotating components have a damping effect when rotating relative to the main shaft.

[0024] In some embodiments, the first rotating shaft assembly further includes a first swing arm, a first end of which is rotatably connected to the first main shaft. The first end of the first swing arm is spaced apart from the first ends of the first damping slider and the first rotating member, respectively. The second end of the first swing arm is slidably connected to the first fixed frame via a first guide groove, the extending direction of the first guide groove intersecting the extending direction of the first fixed frame. The second rotating shaft assembly further includes a second swing arm, a first end of which is rotatably connected to the first main shaft. The first end of the second swing arm is spaced apart from the first ends of the first damping slider and the second rotating member, respectively. The second end of the second swing arm is slidably connected to the first fixed frame via a second guide groove, the extending direction of the second guide groove intersecting the extending direction of the second fixed frame.

[0025] With the above configuration, when the first rotating mechanism transitions from an unfolded state to a folded state, the first fixed frame slides away from the main axis relative to the first swing arm, and the second fixed frame slides away from the main axis relative to the second swing arm. Correspondingly, when the first rotating mechanism transitions from a folded state to an unfolded state, the first fixed frame slides closer to the main axis relative to the first swing arm, and the second fixed frame slides closer to the main axis relative to the second swing arm. This facilitates adjustment of the length between the first and second fixed frames, ensuring that the length of the flexible screen remains unchanged during the unfolding or folding process of the rotating mechanism, and mitigating the squeezing or stretching phenomena on the flexible screen caused by the rotating mechanism.

[0026] In some embodiments, the first end of the first swing arm overlaps with the first damping slider in a first direction and a second direction, and the first end of the second swing arm overlaps with the first damping slider in a first direction and a second direction.

[0027] The above arrangement helps to reduce the space occupied by the first end of the first swing arm and the first end of the second swing arm within the main shaft, thus providing ample space for the rotating mechanism in the first direction. This, in turn, allows for an increase in the number of rotating modules within the rotating mechanism, thereby improving the rotational performance of the folding electronic device.

[0028] In some embodiments, a first end of a first swing arm and a first main shaft are rotatably connected via a first shaft, wherein the first end of the first swing arm includes the first shaft, or the first main shaft includes the first shaft. A first end of a second swing arm and a first main shaft are rotatably connected via a second shaft, wherein the first end of the second swing arm includes the second shaft, or the first main shaft includes the second shaft.

[0029] By connecting the first end of the first swing arm and the main shaft together via a rotational connection of a solid shaft, it is beneficial to reduce the assembly space occupied by the first end of the first swing arm and the main shaft. Similarly, by connecting the first end of the second swing arm and the main shaft together via a rotational connection of a solid shaft, it is beneficial to reduce the assembly space occupied by the first end of the second swing arm and the main shaft.

[0030] In some embodiments, the second end of the first rotating member is slidably connected to the first fixed frame via a second sliding groove, and the second end of the first rotating member can slide relative to the first fixed frame along the extending direction of the second sliding groove. The first rotating shaft assembly further includes a first rocker arm, the first end of the first rocker arm is rotatably connected to the first rotating member, the rotation axis of the first rocker arm relative to the first rotating member is a first axis, and the second end of the first rocker arm is slidably connected to the first fixed frame via a third guide groove, and the second end of the first rocker arm can slide relative to the first fixed frame along the extending direction of the third guide groove.

[0031] The second end of the second rotating member is slidably connected to the second fixed frame via a third sliding groove, and the second end of the second rotating member can slide relative to the second fixed frame along the extending direction of the third sliding groove. The second rotating shaft assembly also includes a second rocker arm, the first end of which is rotatably connected to the second rotating member, the axis of rotation of the second rocker arm relative to the second rotating member being the second axis, and the second end of the second rocker arm is slidably connected to the second fixed frame via a fourth guide groove, and the second end of the second rocker arm can slide relative to the second fixed frame along the extending direction of the fourth guide groove.

[0032] When the first rotating mechanism is in the deployed state, the extension directions of the second and third slides both intersect the supporting plane; the orthographic projections of the extension directions of the third and fourth guides onto the supporting plane both intersect the orthographic projection of the second direction onto the supporting plane; the orthographic projection of the first axis onto the supporting plane intersects the orthographic projection of the extension direction of the second slide onto the supporting plane, and the orthographic projection of the first axis onto the supporting plane also intersects the orthographic projection of the first direction onto the supporting plane; the orthographic projection of the second axis onto the supporting plane intersects the orthographic projection of the extension direction of the third slide onto the supporting plane, and the orthographic projection of the second axis onto the supporting plane also intersects the orthographic projection of the first direction onto the supporting plane.

[0033] By setting the first and second swing arms, when the rotating mechanism is in the unfolded or folded state, it helps to prevent the first or second rotating shaft assembly from rotating relative to the main shaft when the folded electronic device is impacted or dropped. This prevents the space enclosed by the first and second rotating shaft assemblies and the main shaft from squeezing the flexible screen, thus improving the reliability of the flexible screen.

[0034] In some embodiments, the first fixing frame includes a third guide groove, and the second fixing frame includes a fourth guide groove, wherein the extension direction of the third guide groove and the extension direction of the fourth guide groove are both parallel to the first direction.

[0035] The above arrangement helps to reduce the space occupied by the third guide groove in the first fixed frame, thereby saving the space occupied by the first fixed frame. Similarly, it helps to reduce the space occupied by the fourth guide groove in the second fixed frame, thereby saving the space occupied by the second fixed frame.

[0036] In some embodiments, the first rotating shaft assembly further includes a first support plate, which is rotatably connected to the first rotating member, and the first support plate is also rotatably connected to the first fixed frame. The second rotating shaft assembly further includes a second support plate, which is rotatably connected to the second rotating member, and the second support plate is also rotatably connected to the second fixed frame.

[0037] When the first rotating mechanism is in the unfolded state, the first end of the second support plate, the second end of the second support plate, the second end of the first support plate, and the first end of the first support plate are arranged along the second direction. When the first rotating mechanism is in the folded state, the distance between the first end of the first support plate and the first end of the second support plate along the second direction is less than the distance between the second end of the first support plate and the second end of the second support plate along the second direction.

[0038] With the above settings, when the rotating mechanism is in the unfolded state, it helps to improve the support effect of the first and second rotating shaft assemblies on the flexible screen. When the rotating mechanism is in the folded state, it helps to increase the storage space for accommodating the flexible screen.

[0039] In some embodiments, the third rotating shaft assembly includes a third rotating member and a third fixed frame. A first end of the third rotating shaft assembly is rotatably connected to a second main shaft, including: the first end of the third rotating member is rotatably connected to the second main shaft; a second end of the third rotating member is rotatably connected to a second structural member via a first connecting shaft; and a second end of the third rotating shaft assembly is fixedly connected to the second structural member, including: the third fixed frame is fixedly connected to the second structural member. The fourth rotating shaft assembly includes a fourth rotating member and a fourth fixed frame. A first end of the fourth rotating shaft assembly is rotatably connected to a second main shaft, including: the first end of the fourth rotating member is rotatably connected to the second main shaft; a second end of the fourth rotating member is rotatably connected to a third structural member via a second connecting shaft; and a second end of the fourth rotating shaft assembly is fixedly connected to the third structural member, including: the fourth fixed frame is fixedly connected to the third structural member.

[0040] With the above configuration, the third structural component and the second structural component can be connected together by the second rotating mechanism, and the third structural component can rotate relative to the second structural component through the second rotating mechanism.

[0041] In some embodiments, when the foldable electronic device is in a flat state, the third fixed frame, the third rotating member, the second main shaft, the fourth rotating member, and the fourth fixed frame together constitute the support plane of the second rotating mechanism. This arrangement allows the third fixed frame, the third rotating member, the second main shaft, the fourth rotating member, and the fourth fixed frame to jointly support the flexible screen. When the foldable electronic device is in a folded state, the support surface of the third fixed frame is parallel to the support surface of the fourth fixed frame, and both the support surfaces of the third and fourth fixed frames are perpendicular to a third direction. This arrangement helps to increase the volume of the second accommodating space, avoids excessive compression of the flexible screen, thereby reducing the stress on the flexible screen and improving its reliability.

[0042] In some embodiments, the third rotating shaft assembly includes a third swing arm, a first end of which is rotatably connected to the second main shaft, and a second end of which is slidably connected to the third fixed frame via a third slide groove. The second end of the third swing arm can slide relative to the third fixed frame along the extension direction of the third slide groove, and the extension direction of the third slide groove intersects with the first direction.

[0043] The fourth rotating shaft assembly includes a fourth swing arm. The first end of the fourth swing arm is rotatably connected to the second main shaft, and the second end of the fourth swing arm is slidably connected to the fourth fixed frame through a fourth slide groove. The second end of the fourth swing arm can slide relative to the fourth fixed frame along the extension direction of the fourth slide groove, and the extension direction of the fourth slide groove intersects with the first direction.

[0044] The above settings facilitate the adjustment of the length between the third and fourth fixing frames, ensure that the length of the flexible screen covering the second and third structural components remains unchanged, and mitigate the squeezing or stretching of the flexible screen by the second rotating mechanism.

[0045] In some embodiments, at least a portion of the third fixed frame is located between the third swing arm and the flexible screen, and at least a portion of the fourth fixed frame is located between the fourth swing arm and the flexible screen. This arrangement avoids interference between the third swing arm and the flexible screen when the third swing arm moves relative to the third fixed frame. It also improves the assembly compactness between the third swing arm and the third fixed frame, reducing the size of the second rotating mechanism. Similarly, interference between the fourth swing arm and the flexible screen when the fourth swing arm moves relative to the fourth fixed frame is avoided. This also improves the assembly compactness between the fourth swing arm and the fourth fixed frame, reducing the size of the second rotating mechanism.

[0046] In some embodiments, the first end of the third swing arm includes a fifth concave-convex surface, and the first end of the fourth swing arm includes a sixth concave-convex surface. The second rotation mechanism further includes a second damping slider and a second elastic member. The second elastic member is disposed on the second main shaft along a first direction. The second damping slider is slidably connected to the second main shaft and can slide relative to the second main shaft along the first direction. The first end of the second damping slider contacts the second elastic member, and the second end of the second damping slider includes a seventh concave-convex surface that mates with the fifth concave-convex surface and an eighth concave-convex surface that mates with the sixth concave-convex surface.

[0047] When the second rotating mechanism switches between the unfolded and folded states, the third swing arm rotates relative to the second main shaft, and the fourth swing arm rotates relative to the second main shaft. The second damping slider drives the second elastic element to compress and deform. The elastic restoring force of the second elastic element acts as a damping force.

[0048] In some embodiments, the first end of the third swing arm includes a first helical surface, and the first end of the fourth swing arm includes a second helical surface. The second rotation mechanism further includes a synchronizing slider, which is slidably connected to the second main shaft. The synchronizing slider can slide relative to the second main shaft in a first direction. The synchronizing slider includes a third helical surface that mates with the first helical surface and a fourth helical surface that mates with the second helical surface.

[0049] With the above configuration, when the third swing arm rotates relative to the second main shaft, the synchronous slider slides relative to the second main shaft, thereby driving the fourth swing arm to rotate relative to the second main shaft. Through the cooperation between the helical surfaces, synchronous movement of the third and fourth swing arms is achieved, which in turn achieves synchronous movement of the third and fourth rotating shaft assemblies.

[0050] In some embodiments, the second rotating mechanism includes a third rotating member, a second main shaft, and a fourth rotating member, wherein the second main shaft extends along a first direction; wherein a first end of the third rotating member is rotatably connected to the second main shaft, a second end of the third rotating member is fixedly connected to a second structural member, a first end of the fourth rotating member is rotatably connected to the second main shaft, and a second end of the fourth rotating member is fixedly connected to the third structural member.

[0051] When the foldable electronic device is in the unfolded state, the third rotating component, the second main shaft, and the fourth rotating component together form the support plane of the second rotating mechanism; when the foldable electronic device is in the folded state, the support surface of the third rotating component is parallel to the support surface of the fourth rotating component, and both the support surfaces of the third and fourth rotating components are perpendicular to the third direction.

[0052] With the above configuration, the third structural component and the second structural component can be connected together by the second rotating mechanism, and the third structural component can rotate relative to the second structural component through the second rotating mechanism. Attached Figure Description

[0053] Figure 1 This is a structural diagram of a foldable electronic device in its unfolded state, provided in an embodiment of this application.

[0054] Figure 2 for Figure 1 A structural diagram of a foldable electronic device after the flexible screen has been removed.

[0055] Figure 3 This is a structural diagram of a foldable electronic device in a folded state, provided in an embodiment of this application.

[0056] Figure 4 for Figure 3 A structural diagram of the folding electronic device along section AA;

[0057] Figure 5 A partial enlarged view of M1 when the first rotating mechanism is in the deployed state, provided in an embodiment of this application;

[0058] Figure 6 for Figure 5 Exploded view of part of the first rotating mechanism in the diagram;

[0059] Figure 7 for Figure 5 Exploded view of the structure of the first rotating mechanism in the diagram;

[0060] Figure 8 A partial enlarged view of M1 when the first rotating mechanism is in a folded state, as provided in an embodiment of this application.

[0061] Figure 9 An exploded view of the structure of a first main shaft provided in an embodiment of this application;

[0062] Figure 10 An exploded view of the structure of a second shaft portion provided in an embodiment of this application;

[0063] Figure 11A An exploded view of the structure of a first rotating member, a first main shaft, and a second rotating member provided in an embodiment of this application;

[0064] Figure 11B An exploded view of the structure of a first rotating member, a synchronizing member, and a second rotating member provided in an embodiment of this application;

[0065] Figure 12 A partial enlarged view of M2 when the second rotating mechanism is in the deployed state, as provided in an embodiment of this application;

[0066] Figure 13 A partial enlarged view of M2 when the second rotating mechanism is in a folded state, as provided in an embodiment of this application;

[0067] Figure 14 A structural diagram of a synchronizing element when the first rotating mechanism is in the deployed state, provided in an embodiment of this application;

[0068] Figure 15 A structural diagram of a synchronizing element when the first rotating mechanism is in a folded state, provided in an embodiment of this application;

[0069] Figure 16 An exploded view of an assembly structure of a first swing arm, a second swing arm, and a first spindle provided in an embodiment of this application;

[0070] Figure 17 An exploded view of the assembly structure of a swing arm and a fixing frame provided in an embodiment of this application;

[0071] Figure 18 This application provides an assembly structure diagram of a rocker arm, a rotating component, and a fixed frame, as provided in an embodiment of the present application.

[0072] Figure 19 An exploded view of the assembly structure between a rocker arm, a rotating component, and a fixed frame, provided in an embodiment of this application;

[0073] Figure 20 for Figure 18 A cross-sectional view along section line BB of the rotating mechanism in its unfolded state;

[0074] Figure 21 for Figure 18 A cross-sectional view along section line BB of the rotating mechanism in the folded state;

[0075] Figure 22 for Figure 18A cross-sectional view along the EE section line of the rotating mechanism in the unfolded state;

[0076] Figure 23 for Figure 18 A cross-sectional view along the EE section line of the rotating mechanism in the folded state;

[0077] Figure 24 for Figure 18 A cross-sectional view along section line FF of the rotating mechanism in its unfolded state;

[0078] Figure 25 for Figure 18 A cross-sectional view along section line FF of the rotating mechanism in the folded state;

[0079] Figure 26 for Figure 18 A cross-sectional view along the CC section line of the rotating mechanism in its unfolded state;

[0080] Figure 27 for Figure 18 A cross-sectional view along the CC section line of the rotating mechanism in the folded state;

[0081] Figure 28 A partial structural diagram of a first support plate and a second support plate provided in an embodiment of this application;

[0082] Figure 29 for Figure 8 A cross-sectional view along section line GG of the rotating mechanism in its unfolded state.

[0083] Figure 30 for Figure 8 A cross-sectional view along section line GG of the rotating mechanism in a folded state.

[0084] Figure 31 for Figure 12 Exploded view of the structure of the second rotating mechanism in the diagram;

[0085] Figure 32 An exploded view of the structure of a second main shaft provided in an embodiment of this application;

[0086] Figure 33 An exploded view of the assembly structure of a third rotating member and a fourth rotating member with other components provided in an embodiment of this application;

[0087] Figure 34 for Figure 13 A cross-sectional view along section line KK when the second rotating mechanism is in the unfolded state;

[0088] Figure 35 for Figure 13A cross-sectional view along section line KK when the second rotating mechanism is in the folded state;

[0089] Figure 36 An exploded view of the assembly structure of a third swing arm and a third fixed frame, a fourth swing arm and a fourth fixed frame, provided in an embodiment of this application, from another perspective;

[0090] Figure 37 for Figure 13 A cross-sectional view along the RR section line when the second rotating mechanism is in the deployed state;

[0091] Figure 38 for Figure 13 A cross-sectional view along the RR section line when the second rotating mechanism is in the folded state;

[0092] Figure 39 Exploded views of the assembly structures of the third and fourth swing arms with the second spindle provided in the embodiments of this application;

[0093] Figure 40 A partial enlarged view of M2 when the second rotating mechanism is in the deployed state, as provided in an embodiment of this application;

[0094] Figure 41 for Figure 40 Exploded view of the structure of the second rotating mechanism in the diagram;

[0095] Figure 42 An exploded view of the assembly structure of a third rotating member and a fourth rotating member with other components provided in an embodiment of this application. Detailed Implementation

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] Figure 1 This is a structural diagram of a foldable electronic device in its unfolded state, provided in an embodiment of this application. Figure 2 for Figure 1 A structural diagram of a foldable electronic device after the flexible screen has been removed. Figure 3 This is a structural diagram of a foldable electronic device in a folded state, provided in an embodiment of this application. Figure 4 for Figure 3 The structural diagram of the foldable electronic device along the AA section line.

[0102] The following is combined Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The following is a description of a foldable electronic device 1:

[0103] The foldable electronic device 1 includes a flexible screen 30. The flexible screen 30 can be an active matrix organic light emitting diode (AMOLED) display.

[0104] 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.

[0105] In addition, the foldable electronic device 1 also includes a first rotating mechanism 10, a second rotating mechanism 40, a first structural member 21, a second structural member 22, and a third structural member 23 for supporting the flexible screen 30. The first rotating mechanism 10 is connected between the first structural member 21 and the second structural member 22. The second rotating mechanism 40 is connected between the second structural member 22 and the third structural member 23. The first structural member 21, the second structural member 22, and the third structural member 23 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 first rotating mechanism 10, and the second structural member 22 and the third structural member 23 can rotate relative to the second rotating mechanism 40.

[0106] This application embodiment only briefly illustrates some of the structures of the first structural member 21, the second structural member 22, and the third structural member 23, and the accompanying drawings are also simplified. This application embodiment does not strictly limit the specific structures of the first structural member 21, the second structural member 22, and the third structural member 23.

[0107] The first structural member 21, the second structural member 22, and the third structural member 23 may each include a mid-frame structure. The space enclosed by the mid-frame structure is used to install and fix other components of the foldable electronic device 1, such as a camera, earphone, earpiece, buttons, and battery. Furthermore, other electronic components may also be provided on the first structural member 21, the second structural member 22, and the third structural member 23. This embodiment of the application does not limit the other electronic components provided on the first structural member 21, the second structural member 22, and the third structural member 23.

[0108] For example, the flexible screen 30 is located on the same side of the first structural member 21, the second structural member 22, and the third structural member 23. A portion of the flexible screen 30 can be fixed to the first structural member 21, the second structural member 22, and the third structural member 23 by an adhesive layer. A portion of the flexible screen 30 can also be fixed to the first rotating mechanism 10 and the second rotating mechanism 40 by an adhesive layer. This adhesive layer can be a thin film layer formed after applying adhesive, and the specific form of the adhesive layer is not limited in this embodiment. For example, the adhesive layer can be an intermittent thin film layer, or it can be a continuous thin film layer.

[0109] like Figure 1 and Figure 2As shown, when the foldable electronic device 1 is in the unfolded state, the first structural member 21, the second structural member 22, and the third structural member 23 are arranged in sequence. For example, the included angles between the first structural member 21 and the second structural member 22, and between the second structural member 22 and the third structural member 23, can be approximately 180° (understandably, the included angles between the first structural member 21 and the second structural member 22, and between the second structural member 22 and the third structural member 23, are also allowed to have certain deviations, for example, the included angles can be 165°, 177°, or 185°).

[0110] When the folding electronic device 1 is in the unfolded state, both the first rotating mechanism 10 and the second rotating mechanism 40 are in the unfolded state.

[0111] The first structural member 21, the first rotating mechanism 10, the second structural member 22, the second rotating mechanism 40, and the third structural member 23 together form a supporting plane S. The supporting plane S can be used to support the flexible screen 30, improving the flatness of the flexible screen 30 in its unfolded state. Here, "supporting plane S" can be understood as a plane or an approximate plane. The plane can be an absolute surface or an approximate plane. The approximate plane can be a slightly undulating surface, and the acceptable deviation range of the approximate plane can be, for example, within 5%.

[0112] In some embodiments, the flexible screen 30 can be fixed to the first structural member 21, the first rotating mechanism 10, the second structural member 22, the second rotating mechanism 40, and the third structural member 23 by an adhesive layer. The support effect of the first structural member 21, the first rotating mechanism 10, the second structural member 22, the second rotating mechanism 40, and the third structural member 23 on the flexible screen 30 can be adjusted by adjusting the thickness of the adhesive layer so that the first structural member 21, the first rotating mechanism 10, the second structural member 22, the second rotating mechanism 40, and the third structural member 23 together form the support plane S, thereby ensuring that the flexible screen 30 is in its unfolded state when unfolded. In this case, "together forming the supporting plane S" can also be understood as adjusting the thickness of the adhesive layer so that the first structural member 21, the first rotating mechanism 10, the second structural member 22, the second rotating mechanism 40, and the third structural member 23 together form the supporting plane S, thereby ensuring that the flexible screen 30 is in its unfolded state when unfolded.

[0113] When the folding electronic device 1 transitions from an unfolded state to a folded state, the first structural member 21 rotates relative to the second structural member 22 via the first rotating mechanism 10, and the third structural member 23 rotates relative to the second structural member 22 via the second rotating mechanism 40.

[0114] In this embodiment, when the foldable electronic device 1 is in a double-folded state, the first structural member 21, the second structural member 22, and the third structural member 23 can also be in a double-folded state. For example, the first structural member 21 and the second structural member 22 are stacked, and the third structural member 23 and the second structural member 22 are arranged along the second direction Y. In this case, the first rotating mechanism 10 is in a folded state, and the second rotating mechanism 40 is in an unfolded state. As another example, the third structural member 23 and the second structural member 22 are stacked, and the first structural member 21 and the second structural member 22 are arranged along the second direction Y. In this case, the second rotating mechanism 40 is in a folded state, and the first rotating mechanism 10 is in an unfolded state.

[0115] When the foldable electronic device 1 is in a tri-fold state, the first structural component 21, the second structural component 22, and the third structural component 23 can also be in a tri-fold state.

[0116] like Figure 3 and Figure 4 As shown, when the foldable electronic device 1 is in a tri-fold state, the first structural member 21, the second structural member 22, and the third structural member 23 are stacked. The angle between the first structural member 21 and the second structural member 22 can be approximately 0° (understandably, a slight deviation is allowed in the angle between the first structural member 21 and the second structural member 22, for example, the angle can be 1°, 3°, or 5°). At this time, the flexible screen 30 located between the first structural member 21 and the second structural member 22 is in a folded state, and the first rotating mechanism 10 is also in a folded state. The angle between the second structural member 22 and the third structural member 23 can be approximately 0° (understandably, a slight deviation is allowed in the angle between the second structural member 22 and the third structural member 23, for example, the angle can be 1°, 3°, or 5°). At this time, the flexible screen 30 located between the second structural member 22 and the third structural member 23 is in a folded state, and the second rotating mechanism 40 is also in a folded state.

[0117] When the foldable electronic device 1 is in a triple-fold state, the first rotating mechanism 10 and the second rotating mechanism 40 are in a folded state. The following explanation only uses the triple-fold state of the foldable electronic device 1 as an example.

[0118] For ease of explanation, the extension direction of the first rotating mechanism 10 is defined as the first direction X, the arrangement direction of the third structural member 23, the second structural member 22 and the first structural member 21 when the foldable electronic device 1 is in the unfolded state is defined as the second direction Y, and the direction perpendicular to the support plane S is defined as the third direction Z; when the foldable electronic device 1 is in the folded state, the first structural member 21, the second structural member 22 and the third structural member 23 are stacked along the third direction Z; the second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0119] Figure 5 A partial enlarged view of M1 when the first rotating mechanism is in the deployed state, provided in an embodiment of this application; Figure 6 for Figure 5 Exploded view of part of the first rotating mechanism in the diagram; Figure 7 for Figure 5 Exploded view of the structure of the first rotating mechanism in the diagram; Figure 8 This is a partial enlarged view of M1 when the first rotating mechanism is in a folded state, as provided in an embodiment of this application.

[0120] In the embodiments of this application, reference is made to Figure 5 , Figure 6 , Figure 7 as well as Figure 8 As shown, the first rotating mechanism 10 may include a first rotating shaft assembly 200, a first main shaft 100 and a second rotating shaft assembly 300, with the first main shaft 100 extending along a first direction X.

[0121] In this embodiment of the application, the first rotating shaft assembly 200 includes a first rotating member 210 and a first fixed frame 230, and the second rotating shaft assembly 300 includes a second rotating member 310 and a second fixed frame 330.

[0122] For example, in the first rotating shaft assembly 200, the number of the first rotating member 210 and the first fixed bracket 230 is not limited. For example, Figure 6 The first rotating shaft assembly 200 may include two first rotating members 210 and a first fixed frame 230. In this embodiment, the structure of the multiple components in the first rotating shaft assembly 200 is not limited; the multiple components only need to have the same motion principle. For example, when there are multiple first rotating members 210, the structures of the multiple first rotating members 210 can be identical, or there can be structural differences between the multiple first rotating members 210. Similarly, in the second rotating shaft assembly 300, the second rotating member 310 and the second fixed frame 330 can also be arranged similarly.

[0123] Combination Figure 6 and Figure 7 As shown, the first end 210a of the first rotating member is rotatably connected to the main shaft 100, and the second end 210b of the first rotating member is connected to the first fixed frame 230.

[0124] In this embodiment, the first end 210a of the first rotating member can be parallel to the rotation axis of the main shaft 100 in the first direction X. In some embodiments, the second end 210b of the first rotating member can be rotatably connected to the first fixed frame 230. In some embodiments, the second end 210b of the first rotating member can be slidably connected to the first fixed frame 230. This application does not specifically limit the connection method between the second end 210b of the first rotating member and the first fixed frame 230.

[0125] Similarly, the first end 310a of the second rotating member is rotatably connected to the main shaft 100, and the second end 310b of the second rotating member is connected to the second fixed frame 330.

[0126] In this embodiment, the first end 310a of the second rotating member may be parallel to the rotation axis of the main shaft 100 in the first direction X. In some embodiments, the second end 310b of the second rotating member may be rotatably connected to the second fixed frame 330. In some embodiments, the second end 310b of the second rotating member may be slidably connected to the second fixed frame 330. This application does not specifically limit the connection method between the second end 310b of the second rotating member and the second fixed frame 330.

[0127] Figure 9 An exploded view of the structure of a first main shaft provided in an embodiment of this application. Figure 10 An exploded view of the structure of a second shaft portion provided in an embodiment of this application.

[0128] Reference Figure 9 and Figure 10 The first main shaft 100 may include an inner main shaft and an outer main shaft 110 stacked along a third direction Z, wherein the inner main shaft is closer to the flexible screen than the outer main shaft 110. The inner main shaft may include a first shaft portion 121 and a second shaft portion 122, which are stacked along a third direction Z, with the second shaft portion 122 located between the first shaft portion 121 and the outer main shaft 110. When the first rotating mechanism is in the deployed state, the first shaft portion 121 constitutes a partial support plane.

[0129] In this embodiment, the first rotation mechanism further includes a first synchronous slider 150. The first synchronous slider 150 can be slidably connected to the main shaft 100, and the first synchronous slider 150 can slide relative to the main shaft 100 along a first direction X. The first synchronous slider 150 can be located within the space enclosed by the first shaft portion 121 and the second shaft portion 122, thereby saving installation space for the first synchronous slider 150 and preventing it from being exposed outside the main shaft 100, thus avoiding interference with the flexible screen during movement.

[0130] Figure 11AAn exploded view of the structure of a first rotating component, a first main shaft, and a second rotating component provided in an embodiment of this application.

[0131] Reference Figure 11A As shown, the first end 210a of the first rotating member may further include a first groove 219, and the first end 310a of the second rotating member may further include a second groove 319. Part of the first synchronous slider 150 is disposed in the first groove 219, and part of the first synchronous slider 150 is disposed in the second groove 319.

[0132] With the above configuration, part of the first synchronous slider 150 can be embedded in the first rotating member 210, and part of the first synchronous slider 150 can also be embedded in the second rotating member 310, which helps to reduce the space occupied by the first synchronous slider 150 in the first direction X, so that the rotating mechanism has sufficient space in the first direction X.

[0133] In some embodiments, the rotation mechanism includes multiple rotation modules, and each rotation module includes a first rotating shaft assembly 200, a second rotating shaft assembly 300, and a first synchronous slider 150. This arrangement increases the number of rotation modules in the first rotation mechanism, thereby improving the rotation effect of the foldable electronic device.

[0134] Figure 11B An exploded view of the structure of a first rotating member, a synchronizing member, and a second rotating member provided in an embodiment of this application.

[0135] Among them, combined Figure 11B As shown, the first synchronous slider 150 may include a first helical surface 151 and a second helical surface 152, with the first helical surface 151 and the second helical surface 152 having opposite directions of rotation.

[0136] For example, the first synchronization slider 150 may include two first helical surfaces 151 and two second helical surfaces 152. The first synchronization slider 150 may include two surfaces arranged along a first direction X, one surface including one first helical surface 151 and one second helical surface 152, and the other surface including another first helical surface 151 and another second helical surface 152. Furthermore, the two first helical surfaces 151 and the two second helical surfaces 152 may be arranged along the first direction X.

[0137] The groove wall of the first groove 219 may include a third helical surface 218 that mates with the first helical surface 151, and the groove wall of the second groove 319 may include a fourth helical surface 318 that mates with the second helical surface 152. The third helical surface 218 and the first helical surface 151 have the same direction of rotation, and the fourth helical surface 318 and the second helical surface 152 have the same direction of rotation.

[0138] Accordingly, the first groove 219 may include two third helical surfaces 218, and the two sidewalls of the first groove 219 arranged opposite each other along the first direction X each include a third helical surface 218. The second groove 319 may include two fourth helical surfaces 318, and the two sidewalls of the second groove 319 arranged opposite each other along the first direction X each include a fourth helical surface 318.

[0139] With the above configuration, when the first rotating member rotates relative to the first main shaft 100, the third helical surface 218 rotates with the first rotating member 210, so that the third helical surface 218 pushes the first synchronous slider 150 to slide relative to the first main shaft 100 through the cooperating first helical surface 151. The second helical surface 152 of the first synchronous slider 150 moves with the first synchronous slider 150, so that the second helical surface 152 pushes the second rotating member 310 to rotate relative to the first main shaft 100 through the cooperating fourth helical surface 318. In summary, the first rotating member 210 and the second rotating member 310 can rotate synchronously relative to the first main shaft 100, so that the first rotating shaft assembly 200 and the second rotating shaft assembly 300 can achieve synchronous rotation.

[0140] Figure 12 A partial enlarged view of M2 when the second rotating mechanism is in the deployed state, as provided in an embodiment of this application; Figure 13 This is a partial enlarged view of M2 when the second rotating mechanism is in a folded state, as provided in an embodiment of this application.

[0141] In the embodiments of this application, reference is made to Figure 12 as well as Figure 13 The second rotating mechanism 40 includes a third rotating shaft assembly 800, a second main shaft 700, and a fourth rotating shaft assembly 900, with the second main shaft 700 extending along a first direction X.

[0142] The first end 800a of the third rotating shaft assembly is rotatably connected to the second main shaft 700, and the second end 800b of the third rotating shaft assembly is fixedly connected to the second structural member 22. The first end 900a of the fourth rotating shaft assembly is rotatably connected to the second main shaft 700, and the second end 900b of the fourth rotating shaft assembly is fixedly connected to the third structural member 23.

[0143] The second structural component 22 and the third rotating shaft assembly 800 can be fixedly connected by bolts or other threaded fasteners. Similarly, the third structural component 23 and the fourth rotating shaft assembly 900 can be fixedly connected by bolts or other threaded fasteners. Of course, the embodiments of this application do not limit the fixed connection method between the second structural component 22 and the third rotating shaft assembly 800, or between the third structural component 23 and the fourth rotating shaft assembly 900.

[0144] With the above configuration, the third structural member 23 and the second structural member 22 can be connected together by the second rotating mechanism 40. When the folding electronic device 1 switches between the unfolded state and the folded state, the third structural member 23 can rotate relative to the second structural member 22 through the second rotating mechanism 40, thereby realizing the folding or unfolding of the third structural member 23 relative to the second structural member 22.

[0145] In summary, by setting the first rotating mechanism 10, the first structural component 21 can be folded or unfolded relative to the second structural component 22; by setting the second rotating mechanism 40, the third structural component 23 can be folded or unfolded relative to the second structural component 22, so that the foldable electronic device can switch between the unfolded state and the folded state. When the foldable electronic device is in the unfolded state, it is beneficial to increase the display area of ​​the foldable electronic device and improve the user experience.

[0146] In some embodiments, combined with Figure 4 As shown, when the foldable electronic device 1 is in a folded state: the first structural member 21 is located between the second structural member 22 and the third structural member 23, the first rotating mechanism 10 encloses the first accommodating space P1, a portion of the flexible screen 30 is located in the first accommodating space P1, the second rotating mechanism 40 encloses the second accommodating space P2, a portion of the flexible screen 30 and a portion of the first structural member 21 are located in the second accommodating space P2.

[0147] For example, in the foldable electronic device 1 of this application embodiment, when transitioning from an unfolded state to a folded state, the first structural member 21 and the second structural member 22 can be folded inward by the first rotating mechanism 10, and then the third structural member 23 and the second structural member 22 can be folded inward by the second rotating mechanism 40. The first accommodating space P1 can be smaller than the second accommodating space P2, so that the second accommodating space P2 can accommodate a portion of the flexible screen 30 and a portion of the first structural member 21.

[0148] With the above configuration, when the foldable electronic device 1 is in the folded state, the flexible screen 30 is located inside the three structural components, and the cross-sectional shape of the flexible screen 30 can be folded into a G-shape. Because the flexible screen 30 is located inside the three structural components, it is prevented from being exposed. The first structural component 21, the second structural component 22, and the third structural component 23 can protect the flexible screen 30, preventing damage (such as scratches or drops), which helps improve the reliability of the flexible screen 30 and enhances the lifespan and sophistication of the foldable electronic device 1.

[0149] Of course, in some embodiments, when the foldable electronic device 1 is in a folded state, the first structural member 21, the second structural member 22, and the third structural member 23 can be arranged in other ways, and correspondingly, the cross-sectional shape of the flexible screen 30 can be folded into other shapes. For example, when the first structural member 21, the second structural member 22, and the third structural member 23 are stacked along the third direction Z, the second structural member 22 can be located between the first structural member 21 and the third structural member 23, and the cross-sectional shape of the flexible screen 30 can be folded into an S-shape.

[0150] With the above settings, when the foldable electronic device 1 is in a folded state, part of the flexible screen 30 can be exposed, so that the user can still use the flexible screen 30 when the foldable electronic device 1 is in a folded state, thus increasing the application scenarios of the foldable electronic device 1.

[0151] The following is for reference. Figures 14 to 30 The structure of the first rotating mechanism 10 will be further explained.

[0152] Reference Figure 11A As shown, the first end 210a of the first rotating member and the first main shaft 100 can be rotatably connected via a first arc-shaped slider 211 and a first arc-shaped groove 101. The first end 210a of the first rotating member may include the first arc-shaped slider 211, and the first main shaft 100 may include the first arc-shaped groove 101. The first end 310a of the second rotating member and the first main shaft 100 are rotatably connected via a second arc-shaped slider 311 and a second arc-shaped groove 102. The first end 310a of the second rotating member may include the second arc-shaped slider 311, and the first main shaft 100 includes the second arc-shaped groove 102.

[0153] Combination Figure 9 As shown, the first shaft portion 121 and the second shaft portion 122 together form a first arc-shaped slide groove 101 and a second arc-shaped slide groove 102. The first arc-shaped slide groove 101 and the second arc-shaped slide groove 102 can be arranged at intervals along the second direction Y, and the central axis of the first arc-shaped slide groove 101 and the central axis of the second arc-shaped slide groove 102 are both parallel to the first direction X.

[0154] Correspondingly, the first end 210a of the first rotating member may include a first arc-shaped slider 211, which is slidably connected to the first arc-shaped groove 101, so that the first end 210a of the first rotating member and the first main shaft 100 can be rotatably connected through a virtual axis connection. The first end 310a of the second rotating member may include a second arc-shaped slider 311, which is slidably connected to the second arc-shaped groove 102, so that the first end 310a of the second rotating member and the first main shaft 100 can be rotatably connected through a virtual axis connection.

[0155] With the above settings, the rotation axis of the first rotating member 210 relative to the first main shaft 100 and the rotation axis of the second rotating member 310 relative to the first main shaft 100 are both parallel to the first direction X and do not coincide.

[0156] During the transition from the folded state to the unfolded state of the first rotating mechanism, the first arc-shaped slider 211 slides towards the second arc-shaped slide 102 within the first arc-shaped slide groove 101, and the portion of the first arc-shaped slider 211 located in the first arc-shaped slide groove 101 gradually increases. The second arc-shaped slider 311 slides towards the first arc-shaped slide groove 101 within the second arc-shaped slide groove 102, and the portion of the second arc-shaped slider 311 located in the second arc-shaped slide groove 102 gradually increases.

[0157] During the transition from the unfolded state to the folded state of the first rotating mechanism, the first arc-shaped slider 211 slides away from the second arc-shaped slide 102 within the first arc-shaped slide groove 101, and the portion of the first arc-shaped slider 211 located in the first arc-shaped slide groove 101 gradually decreases. The second arc-shaped slider 311 slides away from the first arc-shaped slide groove 101 within the second arc-shaped slide groove 102, and the portion of the second arc-shaped slider 311 located in the second arc-shaped slide groove 102 gradually decreases.

[0158] In addition, in some other embodiments, the first rotating member 210 may also include a first arc-shaped slide groove 101, and the first main shaft 100 may include a first arc-shaped slider 211, so that the first rotating member 210 and the first main shaft 100 can be rotatably connected through the first arc-shaped slide groove 101 and the first arc-shaped slider 211; the second rotating member 310 may also include a second arc-shaped slide groove 102, and the first main shaft 100 may include a second arc-shaped slider 311, so that the second rotating member 310 and the first main shaft 100 can be rotatably connected through the second arc-shaped slide groove 102 and the second arc-shaped slider 311.

[0159] Of course, the first rotating member 210 and the main shaft 100 can also be rotatably connected through other virtual axis connection methods, and the second rotating member 310 and the main shaft 100 can also be rotatably connected through other virtual axis connection methods. This application embodiment does not limit this.

[0160] Continue to refer to Figure 10 In some embodiments, the first synchronization slider 150 can be slidably connected to the first spindle 100 via a first slider 159 and a first slide groove 1229. The first synchronization slider 150 may include the first slider 159, and the first spindle 100 may include the first slide groove 1229. For example, the first slider 159 may be disposed on the side of the first synchronization slider 150 facing the second shaft portion 122, and the second shaft portion 122 of the first spindle 100 may include the first slide groove 1229.

[0161] Furthermore, in some other embodiments, the first slider 159 can be disposed on the first spindle 100, and the first groove 1229 can be disposed on the first synchronizer slider 150, so that the first synchronizer slider 150 and the first spindle 100 can be slidably connected through the first slider 159 and the first groove 1229. Of course, the first synchronizer slider 150 and the first spindle 100 can also be slidably connected through other connection methods, and this application embodiment does not limit this.

[0162] Continue to refer to Figure 11B When the first rotating mechanism is in the unfolded state, the orthographic projections of the first end 152a of the second helical surface on the reference surface, the orthographic projections of the second end 152b of the second helical surface on the reference surface, the orthographic projections of the second end 151b of the first helical surface on the reference surface, and the orthographic projections of the first end 151a of the first helical surface on the reference surface are arranged sequentially in the second direction Y.

[0163] The reference plane can be perpendicular to the first direction X. When the first rotating mechanism is in the deployed state, the reference plane can be, for example, the plane containing the second direction Y and the third direction Z.

[0164] Combination Figure 9 and Figure 10 As shown, when the rotating mechanism is in the unfolded state, the first end 100a and the second end 100b of the first main shaft are arranged along the first direction X. In the first direction X, the distance between the first end 151a of the first helical surface and the first end 100a of the first main shaft is less than the distance between the second end 151b of the first helical surface and the first end 100a of the first main shaft, and the distance between the first end 152a of the second helical surface and the first end 100a of the first main shaft is less than the distance between the second end 152b of the second helical surface and the first end 100a of the first main shaft.

[0165] With the above configuration, the first helical surface 151 can be a surface that rotates less than or equal to one-quarter of a turn around its axis, and the second helical surface 152 can also be a surface that rotates less than or equal to one-quarter of a turn around its axis, with the two helices rotating in opposite directions. Compared to setting the first helical surface 151 and the second helical surface 152 as surfaces that rotate one turn around the axis, the space occupied by the first helical surface 151 and the second helical surface 152 can be reduced, which is beneficial to reducing the volume of the synchronizing element.

[0166] Wherein, the first end 100a of the first spindle can be Figure 9 The lower end of the central spindle 100, and the second end 100b of the first spindle can be... Figure 9 The upper end of the central spindle 100.

[0167] For example, the first end 151a of the first helical surface can be Figure 11BThe right end of the first helical surface 151, and the second end 151b of the first helical surface can be Figure 11B The left end of the first helical surface 151; the first end 152a of the second helical surface can be Figure 11B The left end of the second helical surface 152, the second end 152b of the second helical surface can be Figure 11B The right end of the first helical surface 151.

[0168] Figure 14 A structural diagram of a synchronizing element when the first rotating mechanism is in the deployed state, provided in an embodiment of this application; Figure 15 This is a structural diagram of a synchronizing element when the first rotating mechanism is in a folded state, as provided in an embodiment of this application.

[0169] In some embodiments, combined with Figures 14 to 15 As shown, during the transition of the first rotating mechanism from the unfolded state to the folded state, the first synchronous slider 150 moves relative to the first main shaft 100 in the direction from the first end 100a of the first main shaft to the second end 100b of the first main shaft.

[0170] Conversely, in some embodiments, during the transition of the first rotating mechanism from a folded state to an unfolded state, the first synchronous slider 150 moves relative to the main shaft 100 in a direction from the second end 100b of the first main shaft to the first end 100a of the first main shaft.

[0171] With the above configuration, during the transition between the folded and unfolded states of the first rotating mechanism, the sliding direction of the first synchronous slider 150 relative to the first main shaft 100 is unidirectional. The first synchronous slider 150 can apply a fixed-direction pushing force to the first rotating member 210 or the second rotating member 310, so that both the first rotating member 210 and the second rotating member 310 rotate synchronously relative to the first main shaft 100, and the rotation direction of the first rotating member 210 relative to the first main shaft 100 is opposite to the rotation direction of the second rotating member 310 relative to the first main shaft 100.

[0172] In some embodiments, when the first rotating mechanism is in the unfolded state, the contact area between the first helical surface 151 and the third helical surface 218 can be a first area, and the contact area between the second helical surface 152 and the fourth helical surface 318 can be a second area. When the rotating mechanism is in the folded state, the contact area between the first helical surface 151 and the third helical surface 218 is smaller than the first area, and the contact area between the second helical surface 152 and the fourth helical surface 318 is smaller than the second area.

[0173] With the above settings, when the first rotating mechanism is in the unfolded state, the portion of the first synchronous slider 150 located in the first groove 219 and the second groove 319 increases, so that the contact area between the spiral surfaces is larger; when the rotating mechanism is in the folded state, the portion of the first synchronous slider 150 located in the first groove 219 and the second groove 319 decreases, so that the contact area between the spiral surfaces is smaller.

[0174] For example, during the process of the first rotating mechanism changing from the unfolded state to the folded state, the contact area between the first helical surface 151 and the third helical surface 218 decreases, and the contact area between the second helical surface 152 and the fourth helical surface 318 decreases.

[0175] Conversely, during the transition of the first rotating mechanism from the folded state to the unfolded state, the contact area between the first helical surface 151 and the third helical surface 218 increases, and the contact area between the second helical surface 152 and the fourth helical surface 318 increases.

[0176] With the above configuration, during the transition between the folded and unfolded states of the first rotating mechanism, both the first rotating component 210 and the second rotating component 310 rotate relative to the first main shaft 100, thereby causing the first end 210a and the second end 210b of the first rotating component to move relative to the first synchronous slider 150, which changes the contact area between the helical surface of the rotating component and the helical surface of the first synchronous slider 150.

[0177] Continue to refer to Figure 10 and Figure 11A The first rotating mechanism may further include a first elastic element 180 and a first damping element 170. The first elastic element 180 may be disposed on the first main shaft 100 along a first direction X. The first damping element 170 may be slidably connected to the first main shaft 100 and may slide relative to the first main shaft 100 along the first direction X.

[0178] For example, in an embodiment where there are two first rotating members 210 and two second rotating members 310, there can also be two first damping members 170. For instance, the two first damping members 170 can be arranged along a first direction X, with a first elastic member 180 contacting between the two first damping members 170. When the first rotating mechanism is in the deployed state, portions of the two first damping members 170 are located between the two first rotating members 210, and portions of the two first damping members 170 can also be located between the two second rotating members 310.

[0179] The first end of the first damping member 170 can contact the first elastic member 180. For example, the first end of the first damping member 170 can have multiple pillars, each extending along a first direction X. Correspondingly, the number of first elastic members 180 can also be multiple. Multiple first elastic members 180 can be arranged in a one-to-one correspondence with multiple pillars; for example, the first elastic member 180 can include a spring, with one spring sleeved on one pillar and also in contact with the first damping member 170.

[0180] The second end of the first damping member 170 may include a first concave-convex surface 176 and a second concave-convex surface 177. For example, the orthographic projections of the second concave-convex surface 177 and the first concave-convex surface 176 onto the reference plane may be arranged along the second direction Y, and the reference plane may be perpendicular to the first direction X. When the first rotating mechanism is in the deployed state, the reference plane may, for example, be the plane containing the second direction Y and the third direction Z.

[0181] Correspondingly, the first end 210a of the first rotating member includes a third concave-convex surface 217 that mates with the first concave-convex surface 176, and the second end 310b of the second rotating member includes a fourth concave-convex surface 317 that mates with the second concave-convex surface 177. For example, when the first end 210a of the first rotating member includes a first arc-shaped slider 211, the third concave-convex surface 217 can be disposed on the first arc-shaped slider 211. Similarly, when the first end 310a of the second rotating member includes a second arc-shaped slider 311, the fourth concave-convex surface 317 can be disposed on the second arc-shaped slider 311.

[0182] During the transition between the unfolded and folded states of the first rotating mechanism, both the first rotating member 210 and the second rotating member 310 rotate synchronously relative to the first main shaft 100. Since the third concave-convex surface 217 of the first rotating member 210 engages with the first concave-convex surface 176 of the first damping member 170, and the fourth concave-convex surface 317 of the second rotating member 310 engages with the second concave-convex surface 177 of the first damping member 170, the first rotating member 210 and the second rotating member 310 drive the first damping member 170 to slide relative to the main shaft 100 along the first direction X. The first damping member 170 drives the elastic member 600 to compress and deform. The elastic restoring force of the first elastic member 180 acts as a damping force, thus providing a damping effect when the first rotating member 210 and the second rotating member 310 rotate relative to the first main shaft 100.

[0183] Continue to refer to Figure 7 The first rotating shaft assembly 200 may further include a first swing arm 250, and the second rotating shaft assembly 300 may further include a second swing arm 350.

[0184] Figure 16 This is an exploded view of an assembly structure of a first swing arm, a second swing arm, and a first spindle, provided in an embodiment of this application. (Combined with...) Figure 7 and Figure 16 As shown, the first end 250a of the first swing arm can be rotatably connected to the main shaft 100.

[0185] For example, the first end 250a of the first swing arm and the first main shaft 100 can be rotatably connected via the first shaft 252. The first end 250a of the first swing arm may include the first shaft 252, and the main shaft 100 may include a first mating hole 128. Figure 9 As shown, the first shaft portion 121 and the second shaft portion 122 can form a first mating hole 128, and the first shaft 252 can be integrated with the first swing arm 250.

[0186] By connecting the first end 250a of the first swing arm and the first main shaft 100 together through a rotational connection of the physical shaft, it is beneficial to reduce the assembly space occupied by the first end 250a of the first swing arm and the first main shaft 100.

[0187] Furthermore, in some other embodiments, the first mating hole 128 may also be disposed at the first end 250a of the first swing arm, and the first shaft 252 may also be disposed on the first main shaft 100, so that the first end 250a of the first swing arm and the first main shaft 100 can be rotatably connected through the first shaft 252 and the first mating hole 128. Of course, the first end 250a of the first swing arm and the first main shaft 100 can also be rotatably connected together in other ways, and this application embodiment does not limit this.

[0188] Similarly, the first end 350a of the second swing arm can be rotatably connected to the first main shaft 100. For example, the first end 350a of the second swing arm and the first main shaft 100 can be rotatably connected via a second shaft 352. The first end 350a of the second swing arm may include the second shaft 352, and the first main shaft 100 may include a second mating hole 129. Figure 9 As shown, the first shaft portion 121 and the second shaft portion 122 can form a second mating hole 129, and the second shaft 352 can be integrated with the second swing arm 350.

[0189] By connecting the first end 350a of the second swing arm and the first main shaft 100 together through a rotational connection of the solid shaft, it is beneficial to reduce the assembly space occupied by the first end 350a of the second swing arm and the first main shaft 100.

[0190] Furthermore, in some other embodiments, the second mating hole 129 may also be disposed at the first end 350a of the second swing arm, and the second shaft 352 may also be disposed on the first main shaft 100, so that the first end 350a of the second swing arm and the first main shaft 100 can be rotatably connected through the second shaft 352 and the second mating hole 129. Of course, the first end 350a of the second swing arm and the first main shaft 100 can also be rotatably connected together in other ways, and this application embodiment does not limit this.

[0191] Furthermore, the first end 250a of the first swing arm can be spaced apart from the first damping member 170 and the first rotating member 210, respectively. The first end 250a of the first swing arm does not provide torque. Therefore, the first end 250a of the first swing arm does not need to be provided with a concave-convex surface that mates with the first concave-convex surface 176 or the third concave-convex surface 217. When the first end 250a of the first swing arm includes the first shaft 252, the diameter of the first shaft 252 can be reduced. When the first end 250a of the first swing arm includes the first mating hole 128, the diameter of the first mating hole 128 can be reduced.

[0192] The first end 350a of the second swing arm can be spaced apart from the first damping member 170 and the second rotating member 310, respectively. The first end 350a of the second swing arm does not provide torque. Therefore, the first end 350a of the second swing arm does not need to be provided with a concave-convex surface to mate with the second concave-convex surface 177 or the fourth concave-convex surface 317. When the first end 350a of the second swing arm includes the second shaft 352, the diameter of the second shaft 352 can be reduced. When the first end 350a of the second swing arm includes the second mating hole 129, the diameter of the second mating hole 129 can be reduced.

[0193] In summary, because the space occupied by the first end 250a of the first swing arm and the first end 350a of the second swing arm is reduced, when the first rotating mechanism is in the deployed state, the distance between the first end 250a and the first end 350a of the first swing arm in the second direction Y can be increased. For example, in the second direction Y, the first end 250a and the first end 350a of the first swing arm can be positioned closer to the edge of the main shaft 100. This increases the screen-accommodating space enclosed by the first swing arm 250, the main shaft 100, and the second swing arm 350, thereby preventing the flexible screen located within the screen-accommodating space from being squeezed and improving the reliability of the flexible screen.

[0194] Furthermore, since the first swing arm 250 and the second swing arm 350 do not need to provide torque, multiple first swing arms 250 and multiple second swing arms 350 are not required in the same rotation module. For example, a rotation module in this application includes only one first swing arm 250 and one second swing arm 350, which helps reduce the space occupied by the first swing arm 250 and the second swing arm 350 in the first direction X, making the rotation mechanism have ample space in the first direction X. Through the above arrangement, it is beneficial to increase the number of rotation modules in the rotation mechanism, thereby improving the rotation effect of the folding electronic device.

[0195] In some embodiments, continue to combine Figure 16 As shown, when the first rotating mechanism is in the unfolded state, the first end 250a of the first swing arm overlaps with the first damping member 170 in the first direction X and the second direction Y, and the first end 350a of the second swing arm overlaps with the first damping member 170 in the first direction X and the second direction Y.

[0196] For example, the first end 250a of the first swing arm and the first end of the first damper 170 may overlap in the first direction X, and the second end 350b of the second swing arm and the first end of the first damper 170 may overlap in the first direction X. In the second direction Y, a portion of the first damper 170 may also be located between the first end 250a of the first swing arm and the first end 350a of the second swing arm.

[0197] The above arrangement helps to reduce the space occupied by the first end 250a of the first swing arm and the first end 350a of the second swing arm within the first main shaft 100, thus providing ample space for the rotating mechanism in the first direction X. This, in turn, facilitates increasing the number of rotating modules in the rotating mechanism, thereby improving the rotation effect of the folding electronic device.

[0198] This application does not limit the connection method between the second end 210b of the first rotating member and the first fixed frame 230, or the connection method between the second end 310b of the second rotating member and the second fixed frame 330. For example, the second end 210b of the first rotating member can be rotatably connected to the first fixed frame 230, and the second end 310b of the second rotating member can be rotatably connected to the second fixed frame 330. Alternatively, the second end 210b of the first rotating member can be slidably connected to the first fixed frame 230, and the second end 310b of the second rotating member can be slidably connected to the second fixed frame 330.

[0199] Figure 17 An exploded view of the assembly structure of a swing arm and a fixing frame provided in an embodiment of this application.

[0200] Reference Figure 17The second end 250b of the first swing arm can be slidably connected to the first fixed frame 230 through the first guide groove 235. When the rotating mechanism is in the unfolded state, the orthographic projection of the extension direction of the first guide groove 235 onto the support plane can intersect with the orthographic projection of the first direction X onto the support plane.

[0201] For example, the second end 250b of the first swing arm and the first fixed frame 230 can be slidably connected via a first guide groove 235 and a first mating block 251. The first fixed frame 230 may include the first guide groove 235, the extension direction of which may be perpendicular to the extension direction of the first fixed frame 230, and the extension direction of the first guide groove 235 may also be parallel to the support surface of the first fixed frame 230. The second end 250b of the first swing arm may include the first mating block 251.

[0202] In addition, in some other embodiments, the first guide groove 235 may also be disposed on the first fixed frame 230, and the first mating block 251 may also be disposed on the second end 250b of the first swing arm, so that the second end 250b of the first swing arm and the first fixed frame 230 can be slidably connected through the first guide groove 235 and the first mating block 251. Of course, the second end 250b of the first swing arm and the first fixed frame 230 can also be slidably connected together in other ways, and this application embodiment does not limit this.

[0203] Similarly, the second end 350b of the second swing arm can be slidably connected to the first fixed frame 230 via the second guide groove 335. When the first rotating mechanism is in the deployed state, the projection of the extension direction of the second guide groove 335 onto the support plane can intersect with the projection of the first direction X onto the support plane.

[0204] For example, the second end 350b of the second swing arm and the second fixed frame 330 can be slidably connected via a second guide groove 335 and a second mating block 351. The second fixed frame 330 may include the second guide groove 335, the extension direction of which may be perpendicular to the extension direction of the second fixed frame 330, and the extension direction of the second guide groove 335 may also be parallel to the support surface of the second fixed frame 330. The second end 350b of the second swing arm may include the second mating block 351.

[0205] Furthermore, in some other embodiments, the second guide groove 335 may also be disposed on the second fixed frame 330, and the second mating block 351 may also be disposed on the second end 350b of the second swing arm, so that the second end 350b of the second swing arm and the second fixed frame 330 can be slidably connected through the second guide groove 335 and the second mating block 351. Of course, the second end 350b of the second swing arm and the second fixed frame 330 can also be slidably connected together in other ways, and this application embodiment does not limit this.

[0206] During the transition from the unfolded state to the folded state of the first rotating mechanism, the first fixed frame 230 slides away from the first main shaft 100 relative to the first swing arm 250, and the second fixed frame 330 slides away from the first main shaft 100 relative to the second swing arm 350. Correspondingly, during the transition from the folded state to the unfolded state of the first rotating mechanism, the first fixed frame 230 slides closer to the first main shaft 100 relative to the first swing arm 250, and the second fixed frame 330 slides closer to the first main shaft 100 relative to the second swing arm 350. This facilitates adjustment of the length between the first fixed frame 230 and the second fixed frame 330, ensuring that the length of the flexible screen remains unchanged during the unfolding or folding process of the first rotating mechanism, and mitigating the squeezing or stretching phenomenon of the flexible screen by the first rotating mechanism.

[0207] Figure 18 This is an assembly structure diagram of a rocker arm, a rotating component, and a fixed frame provided in an embodiment of this application. Figure 19 An exploded view of the assembly structure between a rocker arm, a rotating component, and a fixed frame, provided in an embodiment of this application.

[0208] In this embodiment of the application, combined with Figure 18 and Figure 19 As shown, the second end 210b of the first rotating member can be slidably connected to the first fixed frame 230 through the second slide groove 231, and the second end 210b of the first rotating member can slide relative to the first fixed frame 230 along the extension direction of the second slide groove 231.

[0209] For example, the second end 210b of the first rotating member and the first fixed frame 230 are slidably connected by a second slider 212 and a second slide groove 231. For instance, the second end 210b of the first rotating member includes a second slider 212, and the first fixed frame 230 includes a second slide groove 231.

[0210] Alternatively, the second slider 212 can also be disposed on the first fixed frame 230, and the second sliding groove 231 can also be disposed on the second end 210b of the first rotating member, so that the second end 210b of the first rotating member and the first fixed frame 230 are slidably connected. This application embodiment does not limit the sliding connection method between the second end 210b of the first rotating member and the first fixed frame 230.

[0211] Figure 20 for Figure 18 A cross-sectional view along section line BB of the rotating mechanism in its unfolded state; Figure 21 for Figure 18 A cross-sectional view along section line BB of the rotating mechanism in a folded state.

[0212] Among them, reference Figure 20 As shown, when the first rotating mechanism is in the deployed state, the extension direction of the second slide 231 (e.g.) Figure 20 The direction of extension of the second slide groove 231 (in the F1 direction) intersects with the support plane S. For example, when the first rotating mechanism is in the deployed state, the extension direction of the second slide groove 231 can be perpendicular to the support plane S. Alternatively, in other examples, the angle between the extension direction of the second slide groove and the support plane S can be acute.

[0213] Similarly, the second end 310b of the second rotating member can be slidably connected to the second fixed frame 330 through the third slide groove 331, and the second end 310b of the second rotating member can slide relative to the second fixed frame 330 along the extension direction of the third slide groove 331.

[0214] For example, the second end 310b of the second rotating member and the second fixed frame 330 are slidably connected by a third slider 312 and a third groove 331. The second end 310b of the second rotating member includes the third slider 312, and the second fixed frame 330 includes the third groove 331.

[0215] Alternatively, the third slider 312 can also be disposed on the second fixed frame 330, and the third sliding groove 331 can also be disposed on the second end 310b of the second rotating member, so that the second end 310b of the second rotating member and the second fixed frame 330 are slidably connected. This application embodiment does not limit the sliding connection method between the second end 310b of the second rotating member and the second fixed frame 330.

[0216] When the first rotating mechanism is in the deployed state, the extension direction of the third slide 331 (e.g.) Figure 20 The direction of the third slide groove 331 (F3 direction) intersects with the support plane S. When the first rotating mechanism is in the deployed state, the extension direction of the third slide groove 331 can be perpendicular to the support plane S. Alternatively, in other examples, the angle between the extension direction of the third slide groove 331 and the support plane S can be an acute angle.

[0217] Combination Figure 20 and Figure 21 As shown, during the transition from the unfolded state to the folded state, the second slider 212 slides relative to the second slide groove 231 in the direction from the top end of the second slide groove 231 to the bottom end of the second slide groove 231; the third slider 312 moves relative to the second slide groove 231 in the direction from the top end of the third slide groove 331 to the bottom end of the third slide groove 331.

[0218] During the transition from the folded state to the unfolded state, the second slider 212 slides relative to the second slide groove 231 in the direction from the bottom end of the second slide groove 231 to the top end of the second slide groove 231; the third slider 312 moves relative to the second slide groove 231 in the direction from the bottom end of the third slide groove 331 to the top end of the third slide groove 331.

[0219] When the first rotating mechanism is in the unfolded state, in the direction perpendicular to the support plane, the distance between the top support plane S of the second slide groove 231 and the bottom support plane S of the second slide groove 231 is less than the distance between the top support plane S of the third slide groove 331 and the bottom support plane S of the third slide groove 331.

[0220] In addition, combined Figure 18 and Figure 19 As shown, the first rotating shaft assembly 200 may further include a first rocker arm 220, and the second rotating shaft assembly may further include a second rocker arm 320.

[0221] The first end 220a of the first rocker arm can be rotatably connected to the first rotating member 210, and the axis of rotation of the first rocker arm 220 relative to the first rotating member 210 can be a first axis (e.g., Figure 19 In L1), the second end 220b of the first swing arm is slidably connected to the first fixed frame 230 through the third guide groove 224, and the second end 220b of the first swing arm can slide relative to the first fixed frame 230 along the extension direction of the third guide groove 224.

[0222] Figure 22 for Figure 18 A cross-sectional view along the EE section line of the rotating mechanism in its unfolded state; Figure 23 for Figure 18 A cross-sectional view along the EE section line of the rotating mechanism in a folded state.

[0223] Reference Figure 22 As shown, when the first rotating mechanism is in the deployed state, the extension direction of the third guide groove 224 (e.g.) Figure 22 As shown in F2, the orthographic projection of the third guide groove 224 onto the support plane S can intersect with the orthographic projection of the second direction Y onto the support plane S. For example, the orthographic projection of the extension direction of the third guide groove 224 onto the support plane S can be perpendicular to the orthographic projection of the second direction Y onto the support plane S. In this embodiment, the angle between the orthographic projection of the extension direction of the third guide groove 224 onto the support plane S and the orthographic projection of the second direction Y onto the support plane S is not limited.

[0224] When the first rotating mechanism is in the deployed state, the first axis (e.g.) Figure 22 As shown in L1, the orthographic projection of the second groove 231 onto the supporting plane S and the extension direction of the second groove 231 (e.g., as shown in L1) Figure 22As shown in F1, the projections of the first axis on the support plane S intersect, and the projection of the first axis on the support plane S also intersects with the projection of the first direction X on the support plane S. This embodiment does not limit the angle between the projection of the first axis on the support plane S and the projection of the extension direction of the second groove on the support plane S, nor does it limit the angle between the projection of the first axis on the support plane S and the projection of the first direction X on the support plane S.

[0225] For example, in combination Figure 18 and Figure 19 As shown, the first end 220a of the first rocker arm can be rotatably connected to the first rotating member 210 via a third shaft 420, the extension direction of the third shaft 420 being parallel to the first axis. The second end 220b of the first rocker arm can be slidably connected to the first fixed frame 230 via a third guide groove 224 and a first mating shaft 410, wherein the second end 220b of the first rocker arm includes the third guide groove 224, and the first fixed frame 230 includes the first mating shaft 410; or, the first fixed frame 230 includes the third guide groove 224, and the second end 220b of the first rocker arm includes the first mating shaft 410.

[0226] This application embodiment does not specifically limit the extension directions of the third shaft 420 and the first mating shaft 410. The extension direction of the third shaft 420 may be parallel to the extension direction of the first mating shaft 410. That is, the extension direction of the first mating shaft 410 may be parallel to the first axis. Alternatively, when the first rotating mechanism is in the deployed state, the orthographic projection of the third shaft 420 onto the reference plane may intersect with the orthographic projection of the first mating shaft 410 onto the reference plane, and the reference plane may be perpendicular to the first direction X.

[0227] Similarly, continue to refer to Figure 18 and Figure 19 As shown, the first end 320a of the second rocker arm can be rotatably connected to the second rotating member 310, and the axis of rotation of the second rocker arm 320 relative to the second rotating member 310 can be the second axis (e.g., Figure 19 In L2), the second end 320b of the second swing arm is slidably connected to the second fixed frame 330 through the fourth guide groove 324, and the second end 320b of the second swing arm can slide relative to the second fixed frame 330 along the extension direction of the fourth guide groove 324.

[0228] Figure 24 for Figure 18 A cross-sectional view along section line FF of the rotating mechanism in its unfolded state; Figure 25 for Figure 18 A cross-sectional view along section line FF of the rotating mechanism in a folded state.

[0229] When the first rotating mechanism is in the deployed state, the extension direction of the fourth guide groove 324 (e.g.) Figure 24 As shown in F4, the orthographic projection of the fourth guide groove 324 onto the support plane S can intersect with the orthographic projection of the second direction Y onto the support plane S. For example, the orthographic projection of the extension direction of the fourth guide groove 324 onto the support plane S is perpendicular to the orthographic projection of the second direction Y onto the support plane S. In this embodiment, the angle between the orthographic projection of the extension direction of the fourth guide groove 324 onto the support plane S and the orthographic projection of the second direction Y onto the support plane S is not limited.

[0230] When the first rotating mechanism is in the deployed state, the second axis (e.g.) Figure 24 As shown in L2, the orthographic projection of the support plane S and the extension direction of the third groove 331 (e.g., as shown in L2) Figure 24 As shown in Figure F3, the projections of the second axis (L2) onto the support plane S intersect, and the projection of the second axis onto the support plane S also intersects with the projection of the first direction X onto the support plane S. This embodiment does not limit the angle between the projection of the second axis onto the support plane S and the projection of the extension direction of the third groove onto the support plane S, nor does it limit the angle between the projection of the second axis L2 onto the support plane S and the projection of the first direction X onto the support plane S.

[0231] For example, in combination Figure 18 and Figure 19 As shown, the first end 320a of the second rocker arm can be rotatably connected to the second rotating member 310 via the fourth shaft 520. The second end 320b of the second rocker arm can be slidably connected to the second fixed frame 330 via the fourth guide groove 324 and the second mating shaft 510. The second end 320b of the second rocker arm includes the second mating shaft 510, and the second fixed frame 330 includes the fourth guide groove 324; alternatively, the second fixed frame 330 includes the second mating shaft 510, and the second end 320b of the second rocker arm includes the fourth guide groove 324.

[0232] This application embodiment does not specifically limit the extension direction of the fourth shaft 520 and the second mating shaft 510. For example, the extension direction of the fourth shaft 520 may be parallel to the extension direction of the second mating shaft 510. That is, the extension direction of the second mating shaft 510 may be parallel to the second axis L2. Alternatively, when the rotating mechanism is in the unfolded state, the orthographic projection of the fourth shaft 520 onto the reference plane may intersect with the orthographic projection of the second mating shaft 510 onto the reference plane, and the reference plane may be perpendicular to the first direction X.

[0233] By setting the first swing arm 220, when the electronic device is in an unfolded or folded state, the first rotating member 210 and the first fixed frame 230 can form a strong constraint through the first swing arm 220, and the positional relationship between the first rotating member 210 and the first fixed frame 230 is relatively stable, which helps to prevent the first rotating member 210 from rotating relative to the first fixed frame 230.

[0234] Similarly, by setting the second swing arm 320, when the electronic device is in an unfolded or folded state, the second rotating member 310 and the second fixed frame 330 can form a strong constraint through the second swing arm 320, and the positional relationship between the second rotating member 310 and the second fixed frame 330 is relatively stable, which helps to prevent the second rotating member 310 from rotating relative to the second fixed frame 330.

[0235] In summary, by setting the first swing arm 220 and the second swing arm 320, when the rotating mechanism is in the unfolded or folded state, it helps to prevent the first rotating shaft assembly 200 or the second rotating shaft assembly 300 from rotating relative to the main shaft 100 when the folded electronic device is impacted or dropped. This also prevents the containment space P enclosed by the first rotating shaft assembly 200, the second rotating shaft assembly 300, and the main shaft 100 from squeezing the flexible screen, thereby improving the reliability of the flexible screen.

[0236] Furthermore, since the first rotating member 210 and the first fixed frame 230 are strongly constrained by the first swing arm 220, and the second rotating member 310 and the second fixed frame 330 are strongly constrained by the second swing arm 320, during the transition of the first rotating mechanism between the unfolded and folded states, the first swing arm 220 and the second swing arm 320 facilitate the better transmission of the damping force from the first elastic member 180 to the first fixed frame 230 through the first rotating member 210 and the first swing arm 220, and also facilitate the better transmission of the damping force from the first elastic member 180 to the second fixed frame 330 through the second rotating member 310 and the second swing arm 320, thereby improving the user experience.

[0237] In addition, in some other embodiments, the first end 220a of the first rocker arm can also be slidably connected to the first rotating member 210, the first end 220a of the first rocker arm can slide relative to the first rotating member 210 along the extension direction of the third guide groove 224, and the second end 220b of the first rocker arm can also be rotatably connected to the first fixed frame 230.

[0238] Similarly, the first end 320a of the second rocker arm can also be slidably connected to the second rotating member 310, the first end 320a of the second rocker arm can slide relative to the second rotating member 310 along the extension direction of the fourth guide groove 324, and the second end 320b of the second rocker arm can also be rotatably connected to the second fixed frame 330.

[0239] In some embodiments, combined with Figures 18 to 21As shown, since the first end 220a of the first rocker arm is connected to the second end 210b of the first rotating member, the first end 220a of the first rocker arm can move relative to the first fixed frame 230 along with the second end 210b of the first rotating member. For example, the first end 220a of the first rocker arm can slide relative to the first fixed frame 230 along the extending direction of the second slide groove. The first end 220a of the first rocker arm can move relative to the main shaft 100 along with the second end 210b of the first rotating member.

[0240] Similarly, since the first end 320a of the second rocker arm is connected to the second end 310b of the second rotating member, the first end 320a of the second rocker arm can move relative to the second fixed frame 330 along with the second end 310b of the second rotating member. For example, the first end 320a of the second rocker arm can slide relative to the second fixed frame 330 along the extending direction F1 of the second slide groove. The first end 320a of the second rocker arm can move relative to the main shaft 100 along with the second end 310b of the second rotating member.

[0241] Since both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 rotate relative to the main shaft 100, the thickness directions of both the first rotating mechanism and the second rotating shaft assembly 300 change during the transition between the unfolded and folded states. When the rotating mechanism is in the unfolded state, the thickness directions of both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 can be perpendicular to the support plane S. When the rotating mechanism is in the folded state, the thickness directions of both the first rotating shaft assembly 200 and the second rotating shaft assembly 300 can be parallel to the support plane S.

[0242] Combination Figures 22 to 25 As shown, during the transition of the first rotating mechanism from the unfolded state to the folded state, the distance between the third shaft 420 and the first mating shaft 410 in the thickness direction of the first rotating shaft assembly 200 decreases, and the distance between the fourth shaft 520 and the second mating shaft 510 in the thickness direction of the second rotating shaft assembly 300 also decreases, which is beneficial to achieving the thinning and lightness of the foldable electronic device.

[0243] Of course, when the first rotating mechanism is in the unfolded or folded state, the third shaft 420 and the first mating shaft 410, the fourth shaft 520 and the second mating shaft 510 can also have other positional relationships, and this application embodiment does not limit this.

[0244] Combination Figures 22 to 25As shown, the extension direction of the fourth guide groove 324 and the extension direction of the third guide groove are both parallel to the first direction X. This arrangement helps to reduce the space occupied by the third guide groove 224 within the first fixing frame 230, thereby saving space in the first fixing frame 230. Similarly, it helps to reduce the space occupied by the fourth guide groove 324 within the second fixing frame 330, thereby saving space in the second fixing frame 330.

[0245] When the first rotating mechanism is in the deployed state, in the first direction X, the distance between the first end 224a of the third guide groove and the third shaft 420 is greater than the distance between the second end 224b of the third guide groove and the third shaft 420, and the distance between the first end 324a of the fourth guide groove and the fourth shaft 520 is greater than the distance between the second end 324b of the fourth guide groove and the fourth shaft 520.

[0246] During the transition of the first rotating mechanism from the unfolded state to the folded state, the first mating shaft 410 moves relative to the third guide groove 224 from the second end 224b of the third guide groove to the first end 224a of the third guide groove, and the second mating shaft 510 moves relative to the fourth guide groove 324 from the second end 324b of the fourth guide groove to the first end 324a of the fourth guide groove.

[0247] During the transition of the first rotating mechanism from the folded state to the unfolded state, the first mating shaft 410 moves relative to the third guide groove 224 from the first end 224a of the third guide groove to the second end 224b of the third guide groove, and the second mating shaft 510 moves relative to the fourth guide groove 324 from the first end 324a of the fourth guide groove to the second end 324b of the fourth guide groove.

[0248] Figure 26 for Figure 18 A cross-sectional view along the CC section line of the rotating mechanism in its unfolded state; Figure 27 for Figure 18 A cross-sectional view along the CC section line of the rotating mechanism in a folded state.

[0249] Combination Figure 20 , Figure 21 , Figure 26 as well as Figure 27 In some embodiments, when the first rotating mechanism is in the unfolded state, the extension direction of the third shaft 420 and the extension direction of the first mating shaft 410 can both be parallel to the support plane S, and the extension direction of the fourth shaft 520 and the extension direction of the second mating shaft 510 can both be parallel to the support plane S.

[0250] With the above configuration, when the first rotating mechanism is in the unfolded state, it is beneficial to reduce the space occupied by the third shaft 420 and the first mating shaft 410 in the direction perpendicular to the support plane S, and to reduce the space occupied by the fourth shaft 520 and the second mating shaft 510. This, in turn, helps to reduce the thickness of the first rotating shaft assembly 200 and the second rotating shaft assembly 300, and avoids the first rotating shaft assembly 200 and the second rotating shaft assembly 300 occupying a large space in the thickness direction.

[0251] In some embodiments, when the first rotating mechanism is in the deployed state, the extension direction of the third shaft 420 and the extension direction of the first mating shaft 410 can both be perpendicular to the first direction X, and the extension direction of the fourth shaft 520 and the extension direction of the second mating shaft 510 can both be perpendicular to the first direction X.

[0252] With the above settings, in the first direction X, it is beneficial to reduce the space occupied by the third shaft 420 and the first mating shaft 410, and to reduce the space occupied by the fourth shaft 520 and the second mating shaft 510, thereby avoiding the first rotating shaft assembly 200 and the second rotating shaft assembly 300 occupying a large space in the first direction X.

[0253] In some embodiments, when the first rotating mechanism is in a folded state, the third shaft 420 and the first mating shaft 410 at least partially overlap in the first direction X, and the fourth shaft 520 and the second mating shaft 510 at least partially overlap in the first direction X. This arrangement helps to reduce the space occupied by the third shaft 420 and the first mating shaft 410 in the thickness direction of the first rotating shaft assembly 200, and the space occupied by the fourth shaft 520 and the second mating shaft 510 in the thickness direction of the second rotating shaft assembly 300, thus facilitating the thinning and lightening of the foldable electronic device.

[0254] Combination Figure 7 As shown, the first rotating shaft assembly 200 further includes a first support plate 240, which is slidably connected to the first rotating member 210, and is also rotatably connected to the first fixed frame 230. The second rotating shaft assembly 300 further includes a second support plate 340, which is slidably connected to the second rotating member 310, and is also rotatably connected to the second fixed frame 330.

[0255] Reference Figure 20 and Figure 21 As shown, when the first rotating mechanism is in the deployed state, the first end 340a, the second end 340b, the second end 240b, and the first end 240a of the second support plate are arranged along the second direction Y. This arrangement improves the support effect of the first rotating shaft assembly 200 and the second rotating shaft assembly 300 on the flexible screen.

[0256] When the first rotating mechanism is in the folded state, the distance between the first end 240a of the first support plate and the first end 340a of the second support plate along the second direction Y is less than the distance between the second end 240b of the first support plate and the second end 340b of the second support plate along the second direction Y. This arrangement helps to increase the first accommodating space P1 for accommodating the flexible screen.

[0257] Figure 28 This is a partial structural diagram of a first support plate and a second support plate provided in an embodiment of this application. Figure 29 for Figure 8 A cross-sectional view along section line GG of the rotating mechanism in its unfolded state. Figure 30 for Figure 8 A cross-sectional view along section line GG of the rotating mechanism in a folded state.

[0258] Combination Figure 7 , Figure 28 , Figure 29 as well as Figure 30 As shown, the first support plate 240 and the first rotating member 210 can be rotatably connected by the fifth slider 216 and the fifth slide groove 213. The first rotating member may include the fifth slider 216, and the first support plate 240 may include the fifth slide groove 213. Alternatively, the first rotating member may include the fifth slide groove 213, and the first support plate 240 may include the fifth slider 216.

[0259] The second support plate 340 and the second rotating member 310 can be rotatably connected by the sixth slider 316 and the sixth slide groove 313. The second rotating member 310 may include the sixth slider 316, and the second support plate 340 may include the sixth slide groove 313. Alternatively, the second rotating member 310 may include the sixth slide groove 313, and the second support plate 340 may include the sixth slider 316.

[0260] Combination Figure 8 As shown, the first support plate 240 and the first fixing frame 230 are slidably connected by a fifth arc-shaped slider 232 and a fifth arc-shaped groove 241. The first fixing frame 230 may include the fifth arc-shaped slider 232, and the first support plate 240 may include the fifth arc-shaped groove 241. Alternatively, the first fixing frame 230 may include the fifth arc-shaped groove 241, and the first support plate 240 may include the fifth arc-shaped slider 232.

[0261] The second support plate 340 and the second fixing frame 330 are slidably connected by a sixth arc-shaped slider 332 and a sixth arc-shaped groove 341. The second fixing frame 330 may include the sixth arc-shaped slider 332, and the first support plate 240 may include the sixth arc-shaped groove 341. Alternatively, the second fixing frame 330 may include the sixth arc-shaped groove 341, and the first support plate 240 may include the sixth arc-shaped slider 332.

[0262] In some other embodiments, the first support plate 240 may also be slidably connected to the first rotating member 210 through a slotted hole and a rotating shaft, the second support plate 340 may be slidably connected to the second rotating member 310, and the second support plate 340 may also be rotatably connected to the second fixed frame 330 through a slotted hole and a rotating shaft. This application does not specifically limit the connection methods between the first support plate 240 and the first rotating member 210, and between the second support plate 340 and the second fixed frame 330.

[0263] In some embodiments, the first support plate 240 can also be slidably connected to the first swing arm 250 through a strip hole and a rotating shaft, and the second support plate 340 can also be slidably connected to the second swing arm 350 through a strip hole and a rotating shaft, which is beneficial to further define the movement direction of the first swing arm 250 and the second swing arm 350.

[0264] The following reference Figures 31 to 39 and combined Figure 12 and Figure 13 The structure of a second rotating mechanism 40 will be further described.

[0265] Figure 31 for Figure 12 Exploded view of the second rotating mechanism in the diagram.

[0266] Combination Figure 12 and Figure 31 The third rotating shaft assembly 800 may include a third rotating member 810 and a third fixed frame 830. The first end 800a of the third rotating shaft assembly is rotatably connected to the second main shaft 700, including: the first end 810a of the third rotating member is rotatably connected to the second main shaft 700. The second end 810b of the third rotating member is rotatably connected to the third fixed frame 830 via a first connecting shaft 840. The second end 80b of the third rotating shaft assembly is fixedly connected to the second structural member 22, including: the third fixed frame 830 is fixedly connected to the second structural member 22.

[0267] The fourth rotating shaft assembly 900 may include a fourth rotating member 910 and a fourth fixed frame 930. The first end 900a of the fourth rotating shaft assembly is rotatably connected to the second main shaft 700, including: the first end 910a of the fourth rotating member is rotatably connected to the second main shaft 700, and the second end 910b of the fourth rotating member is rotatably connected to the fourth fixed frame 930 via a second connecting shaft 940. The second end 90b of the fourth rotating shaft assembly is fixedly connected to the third structural member 23, including: the fourth fixed frame 930 is fixedly connected to the third structural member 23.

[0268] For example, when the second rotating mechanism 40 is in the deployed state, the first end 810a of the third rotating member can be the left end of the third rotating member 810, and the second end 810b of the third rotating member can be the right end of the third rotating member 810. The first end 910a of the fourth rotating member can be the right end of the fourth rotating member 910, and the second end 910b of the fourth rotating member can be the left end of the fourth rotating member 910.

[0269] With the above configuration, the third structural member 23 and the second structural member 22 can be connected together by the second rotating mechanism 40, and the third structural member 23 can rotate relative to the second structural member 22 by the second rotating mechanism 40.

[0270] In some embodiments, continue to combine Figure 12 as well as Figure 13 As shown, when the folding electronic device is in the unfolded state, the third fixing frame 830, the third rotating component 810, the second main shaft 700, the fourth rotating component 910, and the fourth fixing frame 930 together constitute the support plane S of the second rotating mechanism 40.

[0271] For example, the third fixing frame 830 and the fourth fixing frame 930 may include a flat plate structure. With the above arrangement, the third fixing frame 830, the third rotating member 810, the second main shaft 700, the fourth rotating member 910, and the fourth fixing frame 930 can work together to support the flexible screen.

[0272] When the foldable electronic device is in a folded state, the support surface of the third fixing frame 830 is parallel to the support surface of the fourth fixing frame 930, and both the support surfaces of the third fixing frame 830 and the fourth fixing frame 930 are perpendicular to the third direction Z.

[0273] For example, in the direction near the second main shaft 700, the distance between the support surfaces of the third fixing frame 830 and the fourth fixing frame 930 along the third direction Z remains unchanged. For example, the flexible screen can be bent into a U-shape within the second accommodating space P2 jointly enclosed by the third fixing frame 830, the third rotating member 810, the second main shaft 700, the fourth rotating member 910, and the fourth fixing frame 930. This arrangement helps to increase the volume of the second accommodating space P2, avoids excessive compression of the flexible screen, thereby reducing the stress on the flexible screen and improving its reliability.

[0274] Figure 32 An exploded view of the structure of a second spindle 700 provided in an embodiment of this application.

[0275] Reference Figure 32In some embodiments, the second main shaft 700 may include a second main outer shaft 710 and a second main inner shaft, wherein the second main inner shaft and the second main outer shaft 710 are stacked, and the second main inner shaft is located between the flexible screen 30 and the second main outer shaft 710. The second main inner shaft is used to support the flexible screen 30. The second main inner shaft includes a third shaft portion 721 and a fourth shaft portion 722 stacked, and the fourth shaft portion 722 is located between the third shaft portion 721 and the second main outer shaft 710.

[0276] The third shaft portion 721 and the fourth shaft portion 722 together form a seventh arc-shaped slide groove 701 and an eighth arc-shaped slide groove 702. The seventh arc-shaped slide groove 701 and the eighth arc-shaped slide groove 702 can be arranged at intervals along the second direction Y, and the central axis of the seventh arc-shaped slide groove 701 and the central axis of the eighth arc-shaped slide groove 702 are both parallel to the first direction X.

[0277] Figure 33 An exploded view of the assembly structure of a third rotating member 810 and a fourth rotating member 910 with other components provided in an embodiment of this application.

[0278] Correspondingly, combined Figure 33 and Figure 12 As shown, the first end 810a of the third rotating member may include a seventh arc-shaped slider 811, which is slidably connected to a seventh arc-shaped groove 701, so that the first end 810a of the third rotating member and the second main shaft 700 can be rotatably connected through a virtual axis connection. The first end 910a of the fourth rotating member may include an eighth arc-shaped slider 911, which is slidably connected to an eighth arc-shaped groove 702, so that the first end 910a of the fourth rotating member and the second main shaft 700 can be rotatably connected through a virtual axis connection. Through the above arrangement, the rotation axis of the third rotating member 810 relative to the second main shaft 700 and the rotation axis of the fourth rotating member 910 relative to the second main shaft 700 are both parallel to the first direction X and do not coincide.

[0279] Figure 34 for Figure 13 A cross-sectional view along section line KK when the second rotating mechanism 40 is in the unfolded state; Figure 35 for Figure 13 A cross-sectional view along section line KK when the second rotating mechanism 40 is in the folded state.

[0280] Reference Figure 34 and Figure 35As the second rotating mechanism 40 transitions from a folded state to an unfolded state, the portion of the seventh arc-shaped slider 811 located in the seventh arc-shaped groove 701 gradually increases, and the portion of the eighth arc-shaped slider 911 located in the eighth arc-shaped groove 702 gradually increases. Conversely, as the second rotating mechanism 40 transitions from an unfolded state to a folded state, the portion of the seventh arc-shaped slider 811 located in the seventh arc-shaped groove 701 gradually decreases, and the portion of the eighth arc-shaped slider 911 located in the eighth arc-shaped groove 702 gradually decreases.

[0281] In addition, in some embodiments, the third rotating member 810 may also include a seventh arc-shaped groove 701, and the second main shaft 700 may include a seventh arc-shaped slider 811; the fourth rotating member 910 may also include an eighth arc-shaped groove 702, and the second main shaft 700 may include an eighth arc-shaped slider 911.

[0282] Of course, the third rotating member 810 and the second main shaft 700 can also be rotatably connected through other virtual axis connection methods, and the fourth rotating member 910 and the second main shaft 700 can also be rotatably connected through other virtual axis connection methods. This application embodiment does not limit this.

[0283] Combination Figure 33 , Figure 34 as well as Figure 35 As shown, the third fixing frame 830 may include a first receiving groove 836, the groove wall of which may be provided with a through hole. Correspondingly, the second end 810b of the third rotating member may be disposed within the first receiving groove 836, and the second end 810b of the third rotating member may be provided with a through hole. The first connecting shaft 840 may be disposed within the through hole of the first receiving groove 836 and the through hole of the third rotating member 810, so that the third rotating member 810 and the third fixing frame 830 are rotatably connected.

[0284] Similarly, the fourth fixing frame 930 may include a second receiving groove 936, the wall of which may be provided with a through hole. Correspondingly, the second end 910b of the fourth rotating member may be disposed within the second receiving groove 936, and the second end 910b of the fourth rotating member may also be provided with a through hole. The second connecting shaft 940 may be disposed within the through hole of the second receiving groove 936 and the through hole of the fourth rotating member 910, so that the fourth rotating member 910 and the fourth fixing frame 930 are rotatably connected.

[0285] In addition, combined Figure 34As shown, when the second rotating mechanism 40 is in the deployed state, the portion of the third rotating member 810 located in the first receiving groove 836 is coplanar with the third fixed frame 830, and the portion of the fourth rotating member 910 located in the second receiving groove 936 is coplanar with the fourth fixed frame 930. This arrangement facilitates the joint support of the flexible screen by the third fixed frame 830, the third rotating member 810, the fourth rotating member 910, and the fourth fixed frame 930.

[0286] Continue to refer to Figure 12 and Figure 31 The third rotating shaft assembly 800 may further include a third swing arm 820, with a first end 820a rotatably connected to the second main shaft 700 and a second end 820b slidably connected to the third fixed frame 830. The fourth rotating shaft assembly 900 includes a fourth swing arm 920, with a first end 920a rotatably connected to the second main shaft 700 and a second end 920b slidably connected to the fourth fixed frame 930.

[0287] Figure 36 This is an exploded view of the assembly structure of a third swing arm 820 and a third fixed frame 830, and a fourth swing arm 920 and a fourth fixed frame 930, provided as an embodiment of this application, from another perspective. This perspective can be the viewpoint observed from the direction of the main axis towards the flexible screen.

[0288] Reference Figure 36 As shown, the second end 820b of the third swing arm is also slidably connected to the third fixed frame 830 through the seventh slide groove 835. The second end 820b of the third swing arm can slide relative to the third fixed frame 830 along the extension direction of the seventh slide groove 835. The extension direction of the seventh slide groove 835 intersects with the first direction X.

[0289] The third fixing frame 830 may include a seventh slide groove 835. For example, the extension direction of the seventh slide groove 835 may be perpendicular to the extension direction of the third fixing frame 830, and the extension direction of the seventh slide groove 835 may also be parallel to the support surface of the third fixing frame 830. Of course, the extension direction of the seventh slide groove 835 may also be other directions, and this embodiment does not limit this.

[0290] Correspondingly, the second end 820b of the third swing arm may include a seventh slider 825, which is slidably connected to a seventh slide groove 835. With the above configuration, the third swing arm 820 can move relative to the third fixed frame 830, and the sliding direction of the third swing arm 820 relative to the third fixed frame 830 is perpendicular to the length extension direction of the third fixed frame 830.

[0291] In some embodiments, at least a portion of the third fixing frame 830 may be located between the third swing arm 820 and the flexible screen. For example, a seventh groove 835 may be provided on the side of the third fixing frame 830 facing away from the flexible screen, so that the second end 820b of the third swing arm can be located on the side of the third fixing frame 830 facing away from the flexible screen. This arrangement avoids interference between the third swing arm 820 and the flexible screen when the third swing arm 820 moves relative to the third fixing frame 830. It also improves the assembly compactness between the third swing arm 820 and the third fixing frame 830, reducing the size of the second rotating mechanism 40.

[0292] Similarly, the second end 920b of the fourth swing arm and the fourth fixed frame 930 can be slidably connected by the eighth slide groove 935. The second end 920b of the fourth swing arm can slide relative to the fourth fixed frame 930 along the extension direction of the eighth slide groove 935, and the extension direction of the eighth slide groove 935 intersects with the first direction X.

[0293] The fourth fixing frame 930 may include an eighth slide groove 935. For example, the extension direction of the eighth slide groove 935 may be perpendicular to the extension direction of the fourth fixing frame 930, and the extension direction of the eighth slide groove 935 may also be parallel to the support surface of the fourth fixing frame 930. Of course, the extension direction of the eighth slide groove 935 may also be other directions, and this embodiment does not limit this.

[0294] Correspondingly, the second end 920b of the fourth swing arm may include an eighth slider 925, which is slidably connected to an eighth slide groove 935. With the above configuration, the fourth swing arm 920 can move relative to the fourth fixed frame 930, and the sliding direction of the fourth swing arm 920 relative to the fourth fixed frame 930 is perpendicular to the length extension direction of the fourth fixed frame 930.

[0295] In some embodiments, at least a portion of the fourth fixing frame 930 may be located between the fourth swing arm 920 and the flexible screen. For example, an eighth groove 935 may be provided on the side of the fourth fixing frame 930 facing away from the flexible screen, so that the second end 920b of the fourth swing arm can be located on the side of the fourth fixing frame 930 facing away from the flexible screen. This arrangement avoids interference between the fourth swing arm 920 and the flexible screen when the fourth swing arm 920 moves relative to the fourth fixing frame 930. It also improves the assembly compactness between the fourth swing arm 920 and the fourth fixing frame 930, reducing the size of the second rotating mechanism 40.

[0296] Figure 37 for Figure 13 A cross-sectional view along the RR section line when the second rotating mechanism 40 is in the unfolded state; Figure 38 for Figure 13 A cross-sectional view along the RR section line when the second rotating mechanism 40 is in the folded state.

[0297] Combination Figure 37 and Figure 38 As shown, during the transition from the unfolded state to the folded state of the second rotating mechanism 40, the third fixed frame 830 slides away from the second main shaft 700 relative to the second end 820b of the third swing arm, and the fourth fixed frame 930 slides away from the second main shaft 700 relative to the second end 920b of the fourth swing arm. During the transition from the folded state to the unfolded state of the second rotating mechanism 40, the third fixed frame 830 slides closer to the second main shaft 700 relative to the second end 820b of the third swing arm, and the fourth fixed frame 930 slides closer to the second main shaft 700 relative to the second end 920b of the fourth swing arm.

[0298] The above settings facilitate the adjustment of the length between the third fixing frame 830 and the fourth fixing frame 930, ensure that the length of the flexible screen covering the second and third structural components remains unchanged, and improve the phenomenon of the second rotating mechanism 40 squeezing or stretching the flexible screen.

[0299] Figure 39 Exploded view of the assembly structure of the third swing arm 820 and the fourth swing arm 920 with the second main shaft 700, as provided in the embodiments of this application.

[0300] Reference Figure 39 As shown, the second main shaft 700 may include a plurality of second mounting shafts 760 arranged sequentially along a second direction, wherein the plurality of second mounting shafts 760 extend along a first direction X. The first end 820a of the third swing arm may be sleeved on a second mounting shaft 760 so that the first end 820a of the third swing arm can be rotatably connected to the third main shaft, and the first end 920a of the fourth swing arm may be sleeved on a second mounting shaft 760 so that the first end 92a of the fourth swing arm can be rotatably connected to the second main shaft 700.

[0301] Based on the above structure, the second spindle 700 may further include a second elastic element 770 and a second damping slider 780. The second elastic element 770 may be disposed on the second spindle 700 along the first direction X, and the second damping slider 780 may be slidably connected to the second spindle 700, and may slide relative to the second spindle 700 along the first direction X. For example, the second elastic element 770 may include a spring, and the number of springs may be multiple, with each spring correspondingly sleeved on a multiple second mounting shaft 760.

[0302] Multiple second mounting shafts 760 can be slidably connected to the second damping sliders 780. There can be multiple second damping sliders 780, and these sliders can be arranged at intervals along a first direction X. The first end of the second elastic element 770 is connected to one second damping slider 780, and the second end of the second elastic element 770 is connected to another second damping slider 780. Alternatively, in some other embodiments, there can be only one second damping slider 780, where the first end of the second elastic element 770 can be connected to the second main shaft 700, and the second end of the second elastic element 770 can be connected to the second damping slider 780.

[0303] The third swing arm 820 and the fourth swing arm 920 together constitute a swing arm assembly. In embodiments where there are multiple second damping sliders 780, the second rotating mechanism 40 can have two swing arm assemblies. One swing arm assembly is located on the side of a second damping slider 780 opposite to the first end of the second elastic member 770, and the other swing arm assembly is located on the side of a second damping slider 780 opposite to the second end of the second elastic member 770. The third swing arm 820 in different swing arm assemblies may have structural differences, and similarly, the fourth swing arm 920 in different swing arm assemblies may have structural differences.

[0304] Of course, the number of swing arm assemblies is not limited in the embodiments of this application. The following description only uses one swing arm assembly and one corresponding damping slider as an example.

[0305] Furthermore, the first end 820a of the third swing arm may include a fifth concave-convex surface 822, the second damping slider 780 may include a seventh concave-convex surface 789 that cooperates with the fifth concave-convex surface 822, the first end 920a of the fourth swing arm may include a sixth concave-convex surface 922, and the second damping slider 780 may include an eighth concave-convex surface 788 that cooperates with the sixth concave-convex surface 922.

[0306] For example, the second elastic element 770 contacts the first end of the second damping slider 780, and the seventh concave-convex surface 789 and the eighth concave-convex surface 788 may be located at the second end of the second damping slider 780.

[0307] When the second rotating mechanism 40 switches between the unfolded and folded states, the third swing arm 820 rotates relative to the second main shaft 700. Since the fifth concave-convex surface 822 of the third swing arm 820 engages with the seventh concave-convex surface 789 of the second damping slider 780, the third swing arm 820 drives the second damping slider 780 to slide relative to the second main shaft 700 along the first direction X. The second damping slider 780 drives the second elastic element 770 to compress and deform. The elastic restoring force of the second elastic element 770 acts as a damping force, thus providing a damping effect when the third swing arm 820 rotates relative to the second main shaft 700.

[0308] Simultaneously, when the second rotating mechanism 40 switches between the unfolded and folded states, the fourth swing arm 920 rotates relative to the second main shaft 700. Since the sixth concave-convex surface 922 of the fourth swing arm 920 engages with the eighth concave-convex surface 788 of the second damping slider 780, the fourth swing arm 920 drives the second damping slider 780 to slide relative to the second main shaft 700 along the first direction X. The second damping slider 780 drives the second elastic element 770 to compress and deform. The elastic restoring force of the second elastic element 770 acts as a damping force, thus providing a damping effect when the fourth swing arm 920 rotates relative to the second main shaft 700.

[0309] In some embodiments, the second spindle 700 may further include a synchronization slider 790, which is slidably connected to the second spindle 700 along a first direction. The synchronization slider 790 may be located between two through holes at the first end 820a of the third swing arm and between two through holes at the first end 920a of the fourth swing arm.

[0310] The first end 820a of the third swing arm may include a fifth helical surface 823, the synchronous slider 790 may include a seventh helical surface 791 that cooperates with the fifth helical surface 823, the first end 920a of the fourth swing arm may include a sixth helical surface 923, and the synchronous slider 790 may include an eighth helical surface 792 that cooperates with the sixth helical surface 923.

[0311] With the above configuration, when the third swing arm 820 rotates relative to the second main shaft 700, the synchronous slider 790 slides relative to the second main shaft 700, thereby driving the fourth swing arm 920 to rotate relative to the second main shaft 700. Through the cooperation between the helical surfaces, the synchronous movement of the third swing arm 820 and the fourth swing arm 920 is achieved, which in turn achieves the synchronous movement of the third rotating shaft assembly 800 and the fourth rotating shaft assembly 900.

[0312] Of course, in some other embodiments, the third swing arm 820 and the fourth swing arm 920 can also achieve synchronous movement through other structures, and this application embodiment does not specifically limit this.

[0313] In some embodiments, the first end 820a of the third swing arm may further include a fifth gear, the first end 920a of the fourth swing arm may further include a sixth gear, the second main shaft 700 may further include a seventh gear meshing with the fifth gear, and the second main shaft 700 may further include an eighth gear meshing with the sixth gear. The seventh gear also meshes with the eighth gear.

[0314] Through the coordination of the four gears, the third swing arm 820 can rotate relative to the second main shaft 700 while the fourth swing arm 920 rotates relative to the second main shaft 700, thus achieving synchronous movement of the third swing arm 820 and the fourth swing arm 920.

[0315] In some embodiments, the second rotating mechanism may also be other structures. This application does not specifically limit the second rotating mechanism.

[0316] The following reference Figures 40 to 42 The structure of another second rotating mechanism will be further described. The difference between this second rotating mechanism and the one described in the above embodiment is that... Figure 40 The second rotating mechanism can omit the third fixed frame, fourth fixed frame, third swing arm, and fourth swing arm.

[0317] Figure 40 A partial enlarged view of M2 when the second rotating mechanism is in the deployed state, as provided in an embodiment of this application; Figure 41 for Figure 40 Exploded view of the second rotating mechanism in the diagram.

[0318] Reference Figure 40 and Figure 41 As shown, the second rotating mechanism 40 may include a third rotating member 810, a second main shaft 700, and a fourth rotating member 910. The second main shaft 700 extends along the first direction X. The first end 810a of the third rotating member is rotatably connected to the second main shaft 700, and the second end 810b of the third rotating member is fixedly connected to the second structural member 22. The first end 910a of the fourth rotating member is rotatably connected to the second main shaft 700, and the second end 910b of the fourth rotating member is fixedly connected to the third structural member 23.

[0319] When the folding electronic device 1 is in the unfolded state, the third rotating member 810, the second main shaft 700 and the fourth rotating member 910 together constitute the support plane S of the second rotating mechanism 40.

[0320] When the foldable electronic device 1 is in a folded state, the support surface of the third rotating member 810 is parallel to the support surface of the fourth rotating member 910, and both the support surfaces of the third rotating member 810 and the fourth rotating member 910 are perpendicular to the third direction Z. For example, the flexible screen 30 can be bent into a U-shape within the second accommodating space P2 jointly enclosed by the third rotating member 810, the second main shaft 700, and the fourth rotating member 910.

[0321] In some embodiments, combined with Figure 42 As shown, the second rotating mechanism 40 also includes a synchronous gear 799, a first rack 7991 and a second rack 7992 disposed on the second main shaft 700. The first rack 7991 meshes with the synchronous gear 799 and is also connected to the first end 810a of the third rotating member. The second rack 7992 meshes with the synchronous gear 799 and is also connected to the first end 910a of the fourth rotating member.

[0322] For example, the first end 810a of the third rotating member may be provided with a protrusion that can be inserted into the groove of the first rack 7991; similarly, the first end 910a of the fourth rotating member may be provided with a protrusion that can be inserted into the groove of the second rack 7992.

[0323] With the above configuration, when the third rotating member 810 rotates relative to the second main shaft 700, the third rotating member 810 drives the first rack 7991 to move, and the first rack 7991 drives the synchronous gear 799 to rotate. As the synchronous gear 799 rotates, the second rack 7992 moves, and the direction of movement of the second rack 7992 is opposite to the direction of movement of the first rack 7991. The second rack 7992 drives the fourth rotating member 910 to rotate relative to the second main shaft 700, so that the third rotating member 810 and the fourth rotating member 910 can rotate synchronously.

[0324] In some embodiments, the second rotation mechanism may also include a second elastic element 770 and a second damping slider 780. The second elastic element 770 may be disposed on the second main shaft 700 along the first direction X, and the second damping slider 780 may be slidably connected to the second main shaft 700 along the first direction X.

[0325] The difference from the above embodiments is that the first end 810a of the third rotating member may include a fifth concave-convex surface 822, the second damping slider 780 may include a seventh concave-convex surface 789 that cooperates with the fifth concave-convex surface 822, the first end 910a of the fourth rotating member may include a sixth concave-convex surface 922, and the second damping slider 780 may include an eighth concave-convex surface 788 that cooperates with the sixth concave-convex surface 922. The above descriptions are merely specific embodiments 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 foldable electronic device (1), characterized in that, include: Flexible screen (30); The first structural component (21), the second structural component (22), and the third structural component (23) are located on the same side of the flexible screen (30); A first rotating mechanism (10) includes a first rotating shaft assembly (200), a first main shaft (100), a first synchronous slider (150), and a second rotating shaft assembly (300). The first main shaft (100) extends along a first direction (X). The first synchronous slider (150) is slidably connected to the first main shaft (100). The first synchronous slider (150) can slide relative to the first main shaft (100) along the first direction (X). The first synchronous slider (150) includes a first helical surface (151) and a second helical surface (152). The direction of rotation of the first helical surface (151) is opposite to the direction of rotation of the second helical surface (152). The first rotating shaft assembly (200) includes a first rotating member (210) and a first fixed frame (230). The first end (210a) of the first rotating member is rotatably connected to the first main shaft (100), and the second end (210b) of the first rotating member is connected to the first fixed frame (230). The first end (210a) of the first rotating member includes a first groove (219). A portion of the first synchronous slider (150) is disposed in the first groove (219). The groove wall of the first groove (219) includes a third helical surface (218) that mates with the first helical surface (151). The first fixed frame (230) is fixedly connected to the first structural member (21). The second rotating shaft assembly (300) includes a second rotating member (310) and a second fixed frame (330). The first end (310a) of the second rotating member is rotatably connected to the first main shaft (100), and the second end (310b) of the second rotating member is connected to the second fixed frame (330). The first end (310a) of the second rotating member includes a second groove (319). A portion of the first synchronous slider (150) is disposed in the second groove (319). The groove wall of the second groove (319) includes a fourth helical surface (318) that mates with the second helical surface (152). The second fixed frame (330) is fixedly connected to the second structural member (22). The second rotating mechanism (40) includes a third rotating shaft assembly (800), a second main shaft (700), and a fourth rotating shaft assembly (900), wherein the second main shaft (700) extends along the first direction (X); wherein, The first end (800a) of the third rotating shaft assembly is rotatably connected to the second main shaft (700), and the second end (800b) of the third rotating shaft assembly is fixedly connected to the second structural member (22); the first end (900a) of the fourth rotating shaft assembly is rotatably connected to the second main shaft (700), and the second end (900b) of the fourth rotating shaft assembly is fixedly connected to the third structural member (23); When the foldable electronic device (1) is in a flat state, the third structural member (23), the second structural member (22) and the first structural member (21) are arranged in sequence along the second direction (Y), the second direction (Y) is perpendicular to the first direction (X), and the first structural member (21), the first rotating mechanism (10), the second structural member (22), the second rotating mechanism (40) and the third structural member (23) together constitute a support plane for supporting the flexible screen (30); When the foldable electronic device (1) is in a folded state, the first structural member (21), the third structural member (23) and the second structural member (22) are stacked along a third direction (Z), which is perpendicular to the first direction (X) and the second direction (Y).

2. The foldable electronic device (1) according to claim 1, characterized in that, When the foldable electronic device (1) is in a folded state: The first structural member (21) is located between the third structural member (23) and the second structural member (22). The first rotating mechanism (10) encloses a first accommodating space (P1). A portion of the flexible screen (30) is located within the first accommodating space (P1). The second rotating mechanism (40) encloses a second accommodating space (P2). A portion of the flexible screen (30) and a portion of the first structural member (21) are located within the second accommodating space (P2).

3. The folding electronic device (1) according to claim 1 or 2, characterized in that, When the foldable electronic device (1) is in the unfolded state, the orthographic projection of the first end (152a) of the second spiral surface on the reference surface, the orthographic projection of the second end (152b) of the second spiral surface on the reference surface, the orthographic projection of the second end (151b) of the first spiral surface on the reference surface, and the orthographic projection of the first end (151a) of the first spiral surface on the reference surface are arranged sequentially in the second direction (Y), and the reference surface is perpendicular to the first direction (X). The first end (100a) and the second end (100b) of the first spindle are arranged along the first direction (X). In the first direction (X), the distance between the first end (151a) of the first helical surface and the first end (100a) of the first spindle is less than the distance between the second end (151b) of the first helical surface and the first end (100a) of the first spindle, and the distance between the first end (152a) of the second helical surface and the first end (100a) of the first spindle is less than the distance between the second end (152b) of the second helical surface and the first end (100a) of the first spindle.

4. The foldable electronic device (1) according to claim 3, characterized in that, During the process of the first rotating mechanism (10) changing from the unfolded state to the folded state, the first synchronous slider (150) moves relative to the first main shaft (100) in the direction from the first end (100a) of the first main shaft to the second end (100b) of the first main shaft; During the transition of the first rotating mechanism (10) from the folded state to the unfolded state, the first synchronous slider (150) moves relative to the first main shaft (100) in the direction from the second end (100b) of the first main shaft to the first end (100a) of the first main shaft.

5. The folding electronic device (1) according to any one of claims 2-4, characterized in that, The first rotating mechanism (10) further includes a first damping slider (170) and a first elastic element (180), the first elastic element (180) being disposed on the first main shaft (100) along the first direction (X); The first damping slider (170) is slidably connected to the first main shaft (100). The first damping slider (170) can slide relative to the first main shaft (100) along the first direction (X). The first end of the first damping slider (170) is in contact with the first elastic element (180). The second end of the first damping slider (170) includes a first concave-convex surface (176) and a second concave-convex surface (177). The first end (210a) of the first rotating member includes a third concave-convex surface (217) that mates with the first concave-convex surface (176), and the first end (310a) of the second rotating member includes a fourth concave-convex surface (317) that mates with the second concave-convex surface (177).

6. The foldable electronic device (1) according to claim 5, characterized in that, The first rotating shaft assembly (200) further includes a first swing arm (250), the first end (250a) of the first swing arm is rotatably connected to the first main shaft (100), the first end (250a) of the first swing arm is spaced apart from the first damping slider (170) and the first end (210a) of the first rotating member, and the second end (250b) of the first swing arm is slidably connected to the first fixed frame (230) through the first guide groove (224), the extension direction of the first guide groove (224) intersects with the extension direction of the first fixed frame (230); The second rotating shaft assembly (300) further includes a second swing arm (350), the first end (350a) of the second swing arm is rotatably connected to the first main shaft (100), the first end (350a) of the second swing arm is spaced apart from the first damping slider (170) and the first end (310a) of the second rotating member, and the second end (350b) of the second swing arm is slidably connected to the first fixed frame (230) through a second guide groove (324), the extension direction of the second guide groove (324) intersects with the extension direction of the second fixed frame (330).

7. The foldable electronic device (1) according to claim 6, characterized in that, When the first rotating mechanism (10) is in the deployed state: The first end (250a) of the first swing arm overlaps with the first damping slider (170) in the first direction (X) and the second direction (Y), and the first end (350a) of the second swing arm overlaps with the first damping slider (170) in the first direction (X) and the second direction (Y).

8. The folding electronic device (1) according to claim 6 or 7, characterized in that, The first end (250a) of the first swing arm and the first main shaft (100) are rotatably connected by the first shaft (252), wherein the first end (250a) of the first swing arm includes the first shaft (252), or the first main shaft (100) includes the first shaft (252); The first end (350a) of the second swing arm and the first main shaft (100) are rotatably connected by a second shaft (352), wherein the first end (350a) of the second swing arm includes the second shaft (352), or the first main shaft (100) includes the second shaft (352).

9. The folding electronic device (1) according to any one of claims 2-8, characterized in that, The second end (210b) of the first rotating member is slidably connected to the first fixed frame (230) through the second slide groove (231), and the second end (210b) of the first rotating member can slide relative to the first fixed frame (230) along the extension direction of the second slide groove (231); The first rotating shaft assembly (200) further includes a first rocker arm (220), the first end (220a) of the first rocker arm is rotatably connected to the first rotating member (210), the rotation axis of the first rocker arm (220) relative to the first rotating member (210) is the first axis, the second end (220b) of the first rocker arm is slidably connected to the first fixed frame (230) through the third guide groove (224), and the second end (220b) of the first rocker arm can slide relative to the first fixed frame (230) along the extension direction of the third guide groove (224); The second end (310b) of the second rotating member is slidably connected to the second fixed frame (330) through the third slide groove (331), and the second end (310b) of the second rotating member can slide relative to the second fixed frame (330) along the extension direction of the third slide groove (331); The second rotating shaft assembly (300) further includes a second rocker arm (320), the first end (320a) of the second rocker arm is rotatably connected to the second rotating member (310), the rotation axis of the second rocker arm (320) relative to the second rotating member (310) is the second axis, the second end (320b) of the second rocker arm is slidably connected to the second fixed frame (330) through the fourth guide groove (324), and the second end (320b) of the second rocker arm can slide relative to the second fixed frame (330) along the extension direction of the fourth guide groove (324); When the first rotating mechanism (10) is in the unfolded state, the extension directions of the second slide groove (231) and the third slide groove (331) both intersect the supporting plane (S). The orthographic projections of the extension directions of the third guide groove (224) and the fourth guide groove (324) on the supporting plane (S) both intersect the orthographic projection of the second direction (Y) on the supporting plane (S). The orthographic projection of the first axis on the supporting plane (S) intersects the orthographic projection of the extension direction of the second slide groove (231) on the supporting plane (S). The orthographic projection of the first axis on the supporting plane (S) also intersects the orthographic projection of the first direction (X) on the supporting plane (S). The orthographic projection of the second axis on the support plane (S) intersects the orthographic projection of the extension direction of the third groove (331) on the support plane (S), and the orthographic projection of the second axis on the support plane (S) also intersects the orthographic projection of the first direction (X) on the support plane (S).

10. The foldable electronic device (1) according to claim 9, characterized in that, The first fixing frame (230) includes a third guide groove (224), and the second fixing frame (330) includes a fourth guide groove (324). The extension direction of the third guide groove (224) and the extension direction of the fourth guide groove (324) are both parallel to the first direction (X).

11. The folding electronic device (1) according to any one of claims 2-10, characterized in that, The first rotating shaft assembly (200) further includes a first support plate (240), which is rotatably connected to the first rotating member (210), and the first support plate (240) is also rotatably connected to the first fixing frame (230); The second rotating shaft assembly (300) further includes a second support plate (340), which is rotatably connected to the second rotating member (310), and the second support plate (340) is also rotatably connected to the second fixing frame (330); When the first rotating mechanism (10) is in the unfolded state, the first end (340a) of the second support plate, the second end (340b) of the second support plate, the second end (240b) of the first support plate and the first end (240a) of the first support plate are arranged along the second direction (Y). When the first rotating mechanism (10) is in the folded state, the distance between the first end (240a) of the first support plate and the first end (340a) of the second support plate along the second direction (Y) is less than the distance between the second end (240b) of the first support plate and the second end (340b) of the second support plate along the second direction (Y).

12. The folding electronic device (1) according to any one of claims 1-11, characterized in that, The third rotating shaft assembly (800) includes a third rotating component (810) and a third fixed frame (830). The first end (800a) of the third rotating shaft assembly is rotatably connected to the second main shaft (700), including: the first end (810a) of the third rotating component is rotatably connected to the second main shaft (700), and the second end (810b) of the third rotating component is rotatably connected to the second structural component (22) through a first connecting shaft (840). The second end (800b) of the third rotating shaft assembly is fixedly connected to the second structural component (22), including: the third fixed frame (830) is fixedly connected to the second structural component (22). The fourth rotating shaft assembly (900) includes a fourth rotating component (910) and a fourth fixed frame (930). The first end (900a) of the fourth rotating shaft assembly is rotatably connected to the second main shaft (700), including: the first end (910a) of the fourth rotating component is rotatably connected to the second main shaft (700), the second end (910b) of the fourth rotating component is rotatably connected to the third structural component (23) through a second connecting shaft (940), and the second end (900b) of the fourth rotating shaft assembly is fixedly connected to the third structural component (23), including: the fourth fixed frame (930) is fixedly connected to the third structural component (23).

13. The foldable electronic device (1) according to claim 12, characterized in that, When the folding electronic device (1) is in a flat state, the third fixing frame (830), the third rotating component (810), the second main shaft (700), the fourth rotating component (910) and the fourth fixing frame (930) together constitute the support plane of the second rotating mechanism (40); When the foldable electronic device (1) is in a folded state, the support surface of the third fixing frame (830) is parallel to the support surface of the fourth fixing frame (930), and both the support surface of the third fixing frame (830) and the support surface of the fourth fixing frame (930) are perpendicular to the third direction (Z).

14. The folding electronic device (1) according to claim 12 or 13, characterized in that, The third rotating shaft assembly (800) includes a third swing arm (820), the first end (820a) of the third swing arm is rotatably connected to the second main shaft (700), and the second end (820b) of the third swing arm is also slidably connected to the third fixed frame (830) through a seventh slide groove (835). The second end (820b) of the third swing arm can slide relative to the third fixed frame (830) along the extension direction of the seventh slide groove (835), and the extension direction of the seventh slide groove (835) intersects with the first direction (X). The fourth rotating shaft assembly (900) includes a fourth swing arm (920), the first end (920a) of which is rotatably connected to the second main shaft (700), and the second end (920b) of which is slidably connected to the fourth fixed frame (930) via an eighth slide groove (935). The second end (920b) of the fourth swing arm can slide relative to the fourth fixed frame (930) along the extension direction of the eighth slide groove (935), and the extension direction of the eighth slide groove (935) intersects with the first direction (X).

15. The foldable electronic device (1) according to claim 14, characterized in that, At least a portion of the third fixing frame (830) is located between the third swing arm (820) and the flexible screen (30), and at least a portion of the fourth fixing frame (930) is located between the fourth swing arm (920) and the flexible screen (30).

16. The folding electronic device (1) according to claim 14 or 15, characterized in that, The first end (820a) of the third swing arm includes a fifth concave-convex surface (822), and the first end (920a) of the fourth swing arm includes a sixth concave-convex surface (922). The second rotating mechanism (40) further includes a second damping slider (780) and a second elastic element (770). The second elastic element (770) is disposed on the second main shaft (700) along the first direction (X). The second damping slider (780) is slidably connected to the second main shaft (700). The second damping slider (780) can slide relative to the second main shaft (700) along the first direction (X). The first end of the second damping slider (780) contacts the second elastic element (770). The second end of the second damping slider (780) includes a seventh concave-convex surface (789) that cooperates with the fifth concave-convex surface (822) and an eighth concave-convex surface (788) that cooperates with the sixth concave-convex surface (922).

17. The folding electronic device (1) according to any one of claims 14-16, characterized in that, The first end (820a) of the third swing arm includes a fifth helical surface (823), and the first end (920a) of the fourth swing arm includes a sixth helical surface (923); The second rotating mechanism (40) further includes a synchronous slider (790), which is slidably connected to the second main shaft (700). The synchronous slider (790) can slide relative to the second main shaft (700) along the first direction (X). The synchronous slider (790) includes a seventh helical surface (791) that cooperates with the fifth helical surface (823) and an eighth helical surface (792) that cooperates with the sixth helical surface (923).

18. The folding electronic device (1) according to any one of claims 1-11, characterized in that, The second rotating mechanism (40) includes a third rotating member (810), a second main shaft (700), and a fourth rotating member (910), wherein the second main shaft (700) extends along the first direction (X): The first end (810a) of the third rotating member is rotatably connected to the second main shaft (700), the second end (810b) of the third rotating member is fixedly connected to the second structural member (22), the first end (910a) of the fourth rotating member is rotatably connected to the second main shaft (700), and the second end (910b) of the fourth rotating member is fixedly connected to the third structural member (23). When the folding electronic device (1) is in the unfolded state, the third rotating member (810), the second main shaft (700) and the fourth rotating member (910) together constitute the support plane (S) of the second rotating mechanism (40); When the foldable electronic device (1) is in a folded state, the support surface of the third rotating member (810) is parallel to the support surface of the fourth rotating member (910), and both the support surface of the third rotating member (810) and the support surface of the fourth rotating member (910) are perpendicular to the third direction (Z).

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