Folding electronic device

Abstract

The embodiment of the utility model provides folding electronic equipment which is used for improving the phenomenon that the display area is small when the folding electronic equipment is unfolded. The folding electronic equipment comprises a flexible screen, a first structural member, a second structural member, a third structural member, a first rotating mechanism and a second rotating mechanism. The first rotating mechanism is connected with the first structural member and the second structural member, and the second rotating mechanism is connected with the second structural member and the third structural member. The first rotating mechanism comprises a first rotating part, a first swing arm, a first connecting rod, a first fixing frame and a first main shaft, the first rotating part is rotationally connected with the first main shaft and slidably connected with the first fixing frame, and the first swing arm is rotationally connected with the first main shaft and slidably connected with the first fixing frame; the first connecting rod is rotationally connected with the first rotating piece and the first swing arm. The second rotating mechanism comprises a third rotating part and a second main shaft, the third rotating part is rotationally connected with the second main shaft, and the third rotating part is fixedly connected with the second structural part.

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. Utility Model Content

[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 the second direction is perpendicular to the first direction.

[0010] The first rotating shaft assembly includes a first rotating component, a first swing arm, a first connecting rod, and a first fixed frame. The first end of the first rotating component is rotatably connected to the first main shaft, and the second end of the first rotating component is slidably connected to the first fixed frame through a first sliding groove. The second end of the first rotating component can slide relative to the first fixed frame along the extension direction of the first sliding groove. The first end of the first swing arm is rotatably connected to the first main shaft, and the second end of the first swing arm is slidably connected to the first fixed frame. The first end of the first connecting rod is rotatably connected to the first rotating component, and the second end of the first connecting rod is rotatably connected to the first swing arm. The first fixed frame is fixedly connected to the first structural component.

[0011] The second rotating shaft assembly includes a second rotating component, a second swing arm, a second connecting rod, and a second fixed frame. The first end of the second rotating component is rotatably connected to the first main shaft, and the second end of the second rotating component is slidably connected to the second fixed frame through a second sliding groove. The first end of the second swing arm is rotatably connected to the second main shaft, and the second end of the second swing arm is connected to the second fixed frame. The first end of the second connecting rod is rotatably connected to the second rotating component, and the second end of the second connecting rod is rotatably connected to the second swing arm. The second fixed frame is fixedly connected to the second structural component.

[0012] With the above configuration, the first structural component and the second structural component can be connected together via a first rotating mechanism. The first structural component can rotate relative to the first main shaft via a first fixed frame and a first rotating component, and the second structural component can rotate relative to the first main shaft via a second fixed frame and a second rotating component. When the folding electronic device switches between an unfolded state and a folded state, the first structural component can rotate relative to the second structural component via the first rotating mechanism, thereby achieving folding or unfolding of the first structural component relative to the second structural component.

[0013] The second rotating mechanism includes a third rotating component, a second main shaft, and a fourth rotating component, with the second main shaft extending along a first direction. The first end of the third rotating component is rotatably connected to the second main shaft, and the second end of the third rotating component is fixedly connected to a second structural component. The first end of the fourth rotating component is rotatably connected to the second main shaft, and the second end of the fourth rotating component is fixedly connected to the third structural component.

[0014] 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.

[0015] 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.

[0016] In some embodiments, when the foldable electronic device is in a folded state: a first structural member is located between a second structural member and a third structural member; a first rotating mechanism encloses a first accommodating space, and a portion of the flexible screen is located within the first accommodating space; a second rotating mechanism encloses a second accommodating space, and a portion of the flexible screen and a portion of the first structural member are located within the second accommodating space. This arrangement ensures that when the foldable electronic device is in a folded state, the flexible screen is located inside the three structural members, and the cross-sectional shape of the flexible screen can be folded into a G-shape. Because the flexible screen is located inside the three structural members, it is prevented from being exposed. The first, second, and third structural members can protect the flexible screen, preventing damage (e.g., scratches or drops), which improves the reliability of the flexible screen and enhances the lifespan and sophistication of the foldable electronic device.

[0017] In some embodiments, the second end of the first rotating member is slidably connected to the first fixed frame via a first sliding groove and a first slider. The second end of the first rotating member includes the first slider, and the first fixed frame includes the first sliding groove; or, the second end of the first rotating member includes the first sliding groove, and the first fixed frame includes the first slider. The second end of the second rotating member is slidably connected to the second fixed frame via a second sliding groove and a second slider. The second end of the second rotating member includes the second slider, and the second fixed frame includes the second sliding groove; or, the second end of the second rotating member includes the second sliding groove, and the second fixed frame includes the second slider. These configurations allow the first rotating member and the first fixed frame to be slidably connected, and the second rotating member and the second fixed frame to be slidably connected.

[0018] In some embodiments, when the foldable electronic device is in the unfolded state: in a second direction, the distance between the first end of the first slide and the first main shaft is less than the distance between the second end of the first slide and the first main shaft; and in a direction perpendicular to the support plane, the distance between the first end of the first slide and the support plane is greater than the distance between the second end of the first slide and the support plane. In the second direction, the distance between the first end of the second slide and the first main shaft is less than the distance between the second end of the second slide and the first main shaft; and in a direction perpendicular to the support plane, the distance between the first end of the second slide and the support plane is greater than the distance between the second end of the first slide and the support plane.

[0019] In some embodiments, during the transition from an unfolded state to a folded state, the first slider moves relative to the first slide groove in a direction from the second end of the first slide groove to the first end of the first slide groove, and the second slider moves relative to the second slide groove in a direction from the second end of the second slide groove to the first end of the second slide groove. During the transition from a folded state to an unfolded state, the first slider moves relative to the first slide groove in a direction from the first end of the first slide groove to the second end of the first slide groove, and the second slider moves relative to the second slide groove in a direction from the first end of the second slide groove to the second end of the second slide groove.

[0020] With the above configuration, when the rotating mechanism transitions from an unfolded state to a folded state, the first fixed frame slides away from the first main axis relative to the first rotating member, and the second fixed frame slides away from the first main axis relative to the second rotating member. Correspondingly, when the rotating mechanism transitions from a folded state to an unfolded state, the first fixed frame slides closer to the first main axis relative to the first rotating member, and the second fixed frame slides closer to the first main axis relative to the second rotating member. 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.

[0021] In some embodiments, the first end of the first link is rotatably connected to the first rotating member via a first shaft, the second end of the first link is rotatably connected to the first swing arm via a second shaft, the first end of the second link is rotatably connected to the second rotating member via a third shaft, and the second end of the second link is rotatably connected to the second swing arm via a fourth shaft. The extending directions of the second shaft, the first shaft, the third shaft, and the fourth shaft are all parallel to the first direction.

[0022] With the above configuration, the first link can be rotatably connected to the first rotating member and the first swing arm through a solid shaft, and the second link can be rotatably connected to the second rotating member and the second swing arm through a solid shaft, which helps to ensure the connection strength between the first link and the first rotating member, the first link and the first swing arm, the second link and the second rotating member, and the second link and the second swing arm.

[0023] In some embodiments, when the foldable electronic device is in a flat state, the second end of the second link, the first end of the second link, the first end of the first link, and the second end of the first link, projected onto the support plane in a second direction, are arranged sequentially. In a direction perpendicular to the support plane, the distance between the first end of the first link and the support plane is less than the distance between the second end of the first link and the support plane, and the distance between the first end of the second link and the support plane is less than the distance between the second end of the second link and the support plane. When the foldable electronic device is in a folded state, in a third direction, the distance between the first end of the first link and the first end of the second link is less than the distance between the second end of the first link and the second end of the second link; in the second direction, the distance between the first end of the first link and the first main shaft is greater than the distance between the second end of the first link and the first main shaft, and the distance between the first end of the second link and the first main shaft is greater than the distance between the second end of the second link and the first main shaft.

[0024] During the transition of the folding electronic device from the unfolded state to the folded state, the first end of the first link moves away from the first main axis relative to the second end of the first link, which is beneficial for adjusting the distance of the first rotating component relative to the first main axis; at the same time, the first end of the second link moves away from the first main axis relative to the second end of the second link, which is beneficial for adjusting the distance of the second rotating component relative to the first main axis.

[0025] In some embodiments, the second end of the first swing arm is also slidably connected to the first fixed frame via a third slide groove. The second end of the first swing arm can slide relative to the first fixed frame along the extending direction of the third slide groove, which intersects with the first direction. The second end of the second swing arm is also slidably connected to the second fixed frame via a fourth slide groove. The second end of the second swing arm can slide relative to the second fixed frame along the extending direction of the fourth slide groove, which intersects with the first direction.

[0026] The above settings facilitate the adjustment of the length between the first and second fixed frames, ensure that the length of the flexible screen covering the first and second structural components remains unchanged, and mitigate the squeezing or stretching of the flexible screen by the first rotating mechanism.

[0027] In some embodiments, the first rotating shaft assembly includes a first support plate, which is slidably connected to a first rotating member and rotatably connected to a first fixed frame. The second rotating shaft assembly includes a second support plate, which is slidably connected to a second rotating member and rotatably connected to a second fixed frame.

[0028] When the foldable electronic device is in the unfolded state, the first fixing frame, the first support plate, the first main shaft, the second support plate, and the second fixing frame together constitute the support plane of the first rotating mechanism. 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 sequentially along the second direction. This arrangement helps to improve the support effect of the first and second rotating shaft assemblies on the flexible screen.

[0029] When the foldable electronic device is in a folded state, the distance between the first end of the first support plate and the first end of the second support plate in the third direction is less than the distance between the second end of the first support plate and the second end of the first support plate in the third direction. For example, the first screen-accommodating space enclosed by the first fixing frame, the second fixing frame, the first support plate, the second support plate, the first rotating component, the second rotating component, and the first main shaft allows the flexible screen to be bent into a teardrop shape or a near-teardrop shape. This arrangement avoids excessive compression of the flexible screen, thereby reducing its stress and improving its reliability.

[0030] In some embodiments, the first end of the first swing arm includes a first concave-convex surface, and the first end of the second swing arm includes a second concave-convex surface. The first rotation mechanism further includes a first damping slider and a first elastic element. The first elastic element is 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. The first end of the first damping slider contacts the first elastic element, and the second end of the first damping slider includes a third concave-convex surface that cooperates with the first concave-convex surface and a fourth concave-convex surface that cooperates with the second concave-convex surface.

[0031] When the first rotating mechanism switches between the unfolded and folded states, the first swing arm rotates relative to the first main shaft. Because the first concave-convex surface of the first swing arm engages with the third concave-convex surface of the first damping slider, the first swing arm drives the first damping slider to slide relative to the first main shaft along a first direction. The first damping slider then drives the first elastic element to compress and deform. The elastic restoring force of the first elastic element acts as a damping force, thus providing a damping effect when the first swing arm rotates relative to the first main shaft. Simultaneously, when the first rotating mechanism switches between the unfolded and folded states, the second swing arm rotates relative to the first main shaft. Because the second concave-convex surface of the second swing arm engages with the fourth concave-convex surface of the first damping slider, the second swing arm drives the first damping slider to slide relative to the first main shaft along a first direction. The first damping slider then drives the first elastic element to compress and deform. The elastic restoring force of the first elastic element acts as a damping force, thus providing a damping effect when the second swing arm rotates relative to the first main shaft.

[0032] In some embodiments, the first end of the first swing arm further includes a first gear, and the second end of the second swing arm further includes a second gear. The first rotating mechanism further includes a meshing third gear and a fourth gear, both of which are disposed on the first main shaft. The third gear meshes with the first gear, and the fourth gear meshes with the second gear. With the above arrangement, the first swing arm can rotate relative to the first main shaft while the second swing arm rotates relative to the first main shaft, thereby achieving synchronous movement of the first and second swing arms.

[0033] In some embodiments, when the foldable electronic device is in the unfolded state, the third rotating member, the second main shaft, and the fourth rotating member together constitute 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 member is parallel to the support surface of the fourth rotating member, and both the support surfaces of the third and fourth rotating members are perpendicular to a third direction.

[0034] With the above configuration, when the foldable electronic device is in the unfolded state, the third rotating component, the second main shaft, and the fourth rotating component can work together to support the flexible screen. When the foldable electronic device is in the folded state, the flexible screen can be bent into a U-shape within the second accommodating space P2 enclosed by the third rotating component, the second main shaft, and the fourth rotating component. This 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.

[0035] In some embodiments, the second rotating mechanism further includes a synchronizing gear, a first rack, and a second rack disposed on the second main shaft. The first rack meshes with the synchronizing gear and is also connected to the first end of the third rotating member. The second rack meshes with the synchronizing gear and is also connected to the first end of the fourth rotating member.

[0036] With the above configuration, when the third rotating component rotates relative to the second main shaft, the third rotating component drives the first rack to move, and the first rack drives the synchronous gear to rotate. As the synchronous gear rotates, the second rack moves, and the direction of movement of the second rack is opposite to that of the first rack. The second rack drives the fourth rotating component to rotate relative to the second main shaft, so that the third rotating component and the fourth rotating component can rotate synchronously.

[0037] In some embodiments, the first end of the third rotating member includes a fifth concave-convex surface, and the first end of the fourth rotating member includes a sixth concave-convex surface. The second rotating 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 cooperates with the fifth concave-convex surface and an eighth concave-convex surface that cooperates with the sixth concave-convex surface.

[0038] When the second rotating mechanism switches between the unfolded state and the folded state, the third rotating component rotates relative to the second main shaft. The third rotating component drives the second damping slider to slide relative to the second main shaft along the first direction. The second damping slider drives the second elastic component to compress and deform. The elastic restoring force of the second elastic component acts as a damping force, so that the third rotating component has a damping effect when rotating relative to the second main shaft.

[0039] Meanwhile, when the second rotating mechanism switches between the unfolded state and the folded state, the fourth rotating component rotates relative to the second main shaft. The fourth rotating component drives the second damping slider to slide relative to the second main shaft in the first direction. The second damping slider drives the second elastic component to compress and deform. The elastic restoring force of the second elastic component acts as a damping force, so that the fourth rotating component has a damping effect when rotating relative to the second main shaft. Attached Figure Description

[0040] Figure 1 This is a structural diagram of a foldable electronic device in its unfolded state, provided in an embodiment of this application.

[0041] Figure 2 for Figure 1 A structural diagram of a foldable electronic device after the flexible screen has been removed.

[0042] Figure 3 This is a structural diagram of a foldable electronic device in a folded state, provided in an embodiment of this application.

[0043] Figure 4 for Figure 3 A structural diagram of the folding electronic device along section AA;

[0044] 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;

[0045] Figure 6 for Figure 5 Exploded view of the structure of the first rotating mechanism in the diagram;

[0046] Figure 7 A partial enlarged view of M1 when the first rotating mechanism is in a folded state, as provided in an embodiment of this application;

[0047] Figure 8 A partial enlarged view of M2 when the second rotating mechanism is in the deployed state, as provided in an embodiment of this application;

[0048] Figure 9 for Figure 8 Exploded view of the second rotating mechanism in the diagram;

[0049] Figure 10A partial enlarged view of M2 when the second rotating mechanism is in a folded state, as provided in an embodiment of this application;

[0050] Figure 11 An exploded view of the structure of a first main shaft provided in an embodiment of this application;

[0051] Figure 12 An exploded view of the assembly structure of a first rotating member, a second rotating member, and other components provided in an embodiment of this application;

[0052] Figure 13 for Figure 7 A cross-sectional view along section line BB when the first rotating mechanism is in the deployed state;

[0053] Figure 14 for Figure 7 A cross-sectional view along section line BB when the first rotating mechanism is in the folded state;

[0054] Figure 15 for Figure 7 A cross-sectional view along section line DD when the first rotating mechanism is in the deployed state;

[0055] Figure 16 for Figure 7 A cross-sectional view along section line DD when the first rotating mechanism is in the folded state;

[0056] Figure 17 An assembly structure diagram of a first rotating member and a first swing arm, a second rotating member and a second swing arm provided for embodiments of this application;

[0057] Figure 18 An exploded view of the assembly structure of a first rotating member and a first swing arm, a second rotating member and a second swing arm provided in an embodiment of this application;

[0058] Figure 19 for Figure 7 A cross-sectional view along section line EE when the first rotating mechanism is in the deployed state;

[0059] Figure 20 for Figure 7 A cross-sectional view along section line EE when the first rotating mechanism is in the folded state;

[0060] Figure 21 An exploded view of the assembly structure of a first fixing frame and other components, a second fixing frame and other components, from another perspective, provided for an embodiment of this application.

[0061] Figure 22 for Figure 7 A cross-sectional view along the CC section line when the first rotating mechanism is in the deployed state;

[0062] Figure 23 for Figure 7 A cross-sectional view along the CC section line when the first rotating mechanism is in the folded state;

[0063] Figure 24 Exploded views of the assembly structures of the first and second swing arms with the main shaft provided in the embodiments of this application;

[0064] Figure 25 An exploded view of the structure of a second main shaft provided in an embodiment of this application;

[0065] Figure 26 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;

[0066] Figure 27 for Figure 10 A cross-sectional view along section line KK when the second rotating mechanism is in the unfolded state;

[0067] Figure 28 for Figure 10 A cross-sectional view along section line KK when the second rotating mechanism is in the folded state. Detailed Implementation

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] To facilitate understanding of the foldable electronic device 1 provided in the embodiments of this application. 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.

[0074] The following is combined with Figure 1 , Figure 2 , Figure 3 as well as Figure 4 The following is a description of a foldable electronic device 1:

[0075] 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.

[0076] 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.

[0077] In addition, the foldable electronic device 11 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 are used to support the flexible screen 30, so that the flexible screen 30 remains as flat as possible during use and to protect 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, respectively. This application embodiment only briefly illustrates part of the structure of the first structural member 21, the second structural member 22, and the third structural member 23 by way of example, and the accompanying drawings are also simplified. This application embodiment does not strictly limit the specific structure of the first structural member 21, the second structural member 22, and the third structural member 23.

[0078] 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.

[0079] 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.

[0080] like Figure 1As 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°).

[0081] 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.

[0082] 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%.

[0083] 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.

[0084] 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.

[0085] 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 a second direction. 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 a second direction. In this case, the second rotating mechanism 40 is in a folded state, and the first rotating mechanism 10 is in an unfolded state.

[0086] 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.

[0087] like Figure 3 and Figure 4 As shown, 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.

[0088] When the foldable electronic device 1 is in a triple-fold state, both 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.

[0089] For ease of explanation, the extension direction of the first rotating mechanism 10 is defined as the first direction X, the sequential 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.

[0090] 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 the structure of the first rotating mechanism in the diagram; Figure 7 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.

[0091] In the embodiments of this application, reference is made to Figure 5 , Figure 6 as well as Figure 7 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.

[0092] The first rotating shaft assembly 200 includes a first rotating component 210, a first swing arm 250, a first connecting rod 220, and a first fixed frame 230.

[0093] 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 slidably connected to the first fixed frame 230 through the first sliding groove 231. The second end 210b of the first rotating member can slide relative to the first fixed frame 230 along the extending direction of the first sliding groove 231. The first end 250a of the first swing arm is rotatably connected to the first main shaft 100, and the second end 250b of the first swing arm is slidably connected to the first fixed frame 230. The first end 220a of the first connecting rod is rotatably connected to the first rotating member 210, and the second end 220b of the first connecting rod is rotatably connected to the first swing arm 250. The first fixed frame 230 is fixedly connected to the first structural member 21.

[0094] For example, when the first rotating mechanism is in the deployed state, the first end 210a of the first rotating member can be the left end of the first rotating member 210, and the second end 210b of the first rotating member can be the right end of the first rotating member 210. The first end 250a of the first swing arm can be the left end of the first rotating member 210, and the second end 210b of the first rotating member can be the right end of the first rotating member 210.

[0095] The second rotating shaft assembly 300 includes a second rotating member 310, a second swing arm 350, a second connecting rod 320, and a second fixed frame 330.

[0096] 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 slidably connected to the second fixed frame 330 through the second slide groove 331. The second end 310b of the second rotating member can slide relative to the second fixed frame 330 along the extending direction of the second slide groove 331. The first end 350a of the second swing arm is rotatably connected to the second main shaft 700, and the second end 350b of the second swing arm is slidably connected to the second fixed frame 330. The first end 320a of the second connecting rod is rotatably connected to the second rotating member 310, and the second end 320b of the second connecting rod is rotatably connected to the second swing arm 350. The second fixed frame 330 is fixedly connected to the second structural member 22.

[0097] For example, when the first rotating mechanism is in the deployed state, the first end 310a of the second rotating member can be the right end of the second rotating member 310, and the second end 310b of the second rotating member can be the left end of the second rotating member 310. The first end 250a of the first swing arm can be the right end of the first rotating member 210, and the second end 210b of the first rotating member can be the left end of the first rotating member 210.

[0098] For example, the first fixing bracket 230 and the first structural member 21 can be fixedly connected by bolts or other threaded fasteners. Similarly, the second fixing bracket 330 and the second structural member 22 can be fixedly connected by bolts or other threaded fasteners. Of course, the embodiments of this application do not limit the fixing connection method between the first fixing bracket 230 and the first structural member 21, or between the second fixing bracket 330 and the second structural member 22.

[0099] With the above configuration, the first structural component 21 and the second structural component 22 can be connected together via the first rotating mechanism 10. The first structural component 21 can rotate relative to the first main shaft 100 via the first fixing frame 230 and the first rotating component 210, and the second structural component 22 can rotate relative to the first main shaft 100 via the second fixing frame 330 and the second rotating component 310. When the folding electronic device 1 switches between the unfolded state and the folded state, the first structural component 21 can rotate relative to the second structural component 22 via the first rotating mechanism 10, thereby realizing the folding or unfolding of the first structural component 21 relative to the second structural component 22.

[0100] Furthermore, the first swing arm 250 can be connected to the second end 210b of the first rotating member via the first connecting rod 220, and the second swing arm 350 can be connected to the second end 310b of the second rotating member via the second connecting rod 320, which is beneficial for controlling the movement of the second end 210b of the first rotating member and the second end 310b of the second rotating member.

[0101] Figure 8 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 9 for Figure 8 Exploded view of the second rotating mechanism in the diagram; Figure 10 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.

[0102] In the embodiments of this application, reference is made to Figure 8 , Figure 9 as well as Figure 10 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.

[0103] For example, when the second rotating mechanism 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.

[0104] For example, the third rotating member 810 and the third structural member 23 can be fixedly connected by threaded fasteners such as bolts. Similarly, the fourth rotating member 910 and the third structural member can be fixedly connected by threaded fasteners such as bolts. Of course, the embodiments of this application do not limit the fixed connection method between the third rotating member 810 and the third structural member 23, or between the fourth rotating member 910 and the third structural member 23.

[0105] With the above configuration, the third structural member 23 and the second structural member 22 can be connected together via the second rotating mechanism 40. The second structural member 22 can rotate relative to the second main shaft 700 via the third rotating member 810, and the third structural member 23 can rotate relative to the second main shaft 700 via the fourth rotating member 910. 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 via the second rotating mechanism 40, thereby realizing the folding or unfolding of the third structural member 23 relative to the second structural member 22.

[0106] In summary, by setting the first rotating mechanism 10, the first structural member 21 can rotate relative to the second structural member 22 through the first rotating mechanism 10, thereby realizing the folding or unfolding of the first structural member 21 relative to the second structural member 22; by setting the second rotating mechanism 40, 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. Through the above settings, the foldable electronic device 1 can switch between an unfolded state and a folded state. When the foldable electronic device 1 is in the unfolded state, it helps to increase the display area of ​​the foldable electronic device 1 and improve the user experience.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] The following is for reference. Figures 11 to 24 The structure of the first rotating mechanism 10 will be further explained.

[0113] Figure 11 An exploded view of the structure of a first main shaft provided in an embodiment of this application.

[0114] In some embodiments, refer to Figure 11 The first main shaft 100 may include a first main outer shaft 110 and a first main inner shaft, wherein the first main inner shaft and the first main outer shaft 110 are stacked, and the first main inner shaft is located between the flexible screen 30 and the first main outer shaft 110. The first main inner shaft is used to support the flexible screen. The first main inner shaft may include a first shaft portion 121 and a second shaft portion 122 stacked, wherein the second shaft portion 122 is located between the first shaft portion 121 and the first main outer shaft 110.

[0115] 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.

[0116] Figure 12 An exploded view of the assembly structure of a first rotating member, a second rotating member, and other components provided in an embodiment of this application.

[0117] Correspondingly, combined Figure 12 The first end 210a of the first rotating member may include a first arc-shaped slider 211, which is slidably connected to a 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 a 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. Through the above arrangement, 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.

[0118] Figure 13 for Figure 7A cross-sectional view along section line BB when the first rotating mechanism is in the deployed state; Figure 14 for Figure 7 A sectional view along section line BB when the first rotating mechanism is in the folded state.

[0119] Reference Figure 13 and Figure 14 As the rotating mechanism transitions from a folded state to an unfolded state, the portion of the first arc-shaped slider 211 located in the first arc-shaped groove 101 gradually increases, and the portion of the second arc-shaped slider 311 located in the second arc-shaped groove 102 gradually increases. Conversely, as the rotating mechanism transitions from an unfolded state to a folded state, the portion of the first arc-shaped slider 211 located in the first arc-shaped groove 101 gradually decreases, and the portion of the second arc-shaped slider 311 located in the second arc-shaped groove 102 gradually decreases.

[0120] In addition, in some 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; 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.

[0121] Of course, the first rotating member 210 and the first spindle 100 can also be rotatably connected by other virtual axis connection methods, and the second rotating member 310 and the first spindle 100 can also be rotatably connected by other virtual axis connection methods. This application embodiment does not limit this.

[0122] In some embodiments, the second end 210b of the first rotating member and the first fixed frame 230 are slidably connected by a first slider 212 and a first groove 231. The second end 210b of the first rotating member includes the first slider 212, and the first fixed frame 230 includes the first groove 231. Similarly, the second end 310b of the second rotating member and the second fixed frame 330 are slidably connected by a second slider 312 and a second groove 331. The second end 310b of the second rotating member includes the second slider 312, and the second fixed frame 330 includes the second groove 331.

[0123] With the above configuration, the first fixed frame 230 can slide relative to the first rotating member 210 along the extension direction of the first slide groove 231, and the second fixed frame 330 can slide relative to the second rotating member 310 along the extension direction of the second slide groove 331.

[0124] Continue to refer to Figure 13When the first rotating mechanism 10 is in the unfolded state, in the second direction Y, the distance between the first end 231a of the first slide groove and the first main shaft 100 is less than the distance between the second end 231b of the first slide groove and the first main shaft 100. In the direction perpendicular to the support plane S, the distance between the first end 231a of the first slide groove and the support plane S is greater than the distance between the second end 231b of the first slide groove and the support plane S.

[0125] For example, the first groove 231 can pass through the first fixing frame 230. In a section perpendicular to the support plane S, the cross-sectional shape of the first groove 231 can be approximately rectangular. The first end 231a of the first groove can be the bottom end of the first groove 231, and the second end 231b of the first groove can be the top end of the first groove 231. Correspondingly, the first slider 212 can be a rectangular slider. The first slider 212 can slide in the first groove 231 so that the second end 210b of the first rotating member and the first fixing frame 230 are slidably connected.

[0126] Similarly, in the second direction Y, when the rotating mechanism is in the unfolded state, the distance between the first end 331a of the second slide groove and the first main shaft 100 is less than the distance between the second end 331b of the second slide groove and the first main shaft 100. In the direction perpendicular to the support plane S, the distance between the first end 331a of the second slide groove and the support plane S is greater than the distance between the second end 331b of the second slide groove and the support plane S.

[0127] For example, the second slide groove 331 can penetrate the second fixed frame 330. In a section perpendicular to the support plane S, the cross-sectional shape of the second slide groove 331 can be approximately rectangular. The first end 331a of the second slide groove can be the bottom end of the second slide groove 331, and the second end 331b of the second slide groove can be the top end of the second slide groove 331. Correspondingly, the second slider 312 can be a rectangular slider. The second slider 312 can be slidably connected to the second slide groove 331 so that the second end 310b of the second rotating member is slidably connected to the second fixed frame 330.

[0128] Reference Figure 13 and Figure 14 During the transition from the unfolded state to the folded state, the first slider 212 moves relative to the first slide groove 231 along the direction from the second end 231b of the first slide groove to the first end 231a of the first slide groove, and the second slider 312 moves relative to the second slide groove 331 along the direction from the second end 331b of the second slide groove to the first end 331a of the second slide groove.

[0129] During the transition from the folded state to the unfolded state, the first slider 212 moves relative to the first slide groove 231 in the direction from the first end 231a of the first slide groove to the second end 231b of the first slide groove, and the second slider 312 moves relative to the second slide groove 331 in the direction from the first end 331a of the second slide groove to the second end 331b of the second slide groove.

[0130] With the above configuration, during the transition from the unfolded state to the folded state of the rotating mechanism, the first fixed frame 230 slides away from the first main shaft 100 relative to the first rotating member 210, and the second fixed frame 330 slides away from the first main shaft 100 relative to the second rotating member 310. Correspondingly, during the transition from the folded state to the unfolded state of the rotating mechanism, the first fixed frame 230 slides closer to the first main shaft 100 relative to the first rotating member 210, and the second fixed frame 330 slides closer to the first main shaft 100 relative to the second rotating member 310. 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 30 remains unchanged during the unfolding or folding process of the rotating mechanism, and mitigating the squeezing or stretching phenomenon of the flexible screen 30 by the rotating mechanism.

[0131] Furthermore, based on the same inventive concept, in some other embodiments, the first slide groove 231 may be disposed on the first rotating member 210, and the first slider 212 may be disposed on the first fixed frame 230, so that the first rotating member 210 and the first fixed frame 230 can be rotatably connected through the first slide groove 231 and the first slider 212; the second rotating member 310 may also include the second slide groove 331, and the second fixed frame 330 may include the second slider 312, so that the second rotating member 310 and the second fixed frame 330 can be rotatably connected through the second slide groove 331 and the second slider 312.

[0132] Of course, the first rotating member 210 and the first fixed frame 230 can also be slidably connected by other connection methods, and the second rotating member 310 and the second fixed frame 330 can also be slidably connected by other connection methods. The specific structure and structural relationship of the first sliding groove 231, the first slider 212, the second sliding groove 331, and the second slider 312 are only exemplary illustrations of the inventive concept of this application and are not intended to limit the protection scope of this application. The embodiments of this application do not limit this.

[0133] In some embodiments, the second end 250b of the first swing arm can be slidably connected to the first fixed frame 230 via a third slide groove, the extension direction of the third slide groove intersecting the first direction X.

[0134] For example, continue to refer to Figure 6The first fixing frame 230 may include a third slide groove 235. The extension direction of the third slide groove 235 may be perpendicular to the extension direction of the first fixing frame 230, and the extension direction of the third slide groove 235 may also be parallel to the support surface of the first fixing frame 230.

[0135] Correspondingly, the second end 250b of the first swing arm may include a third slider 251, which is slidably connected to the third slide groove 235. With the above configuration, the first swing arm 250 can move relative to the first fixed frame 230, and the sliding direction of the first swing arm 250 relative to the first fixed frame 230 is perpendicular to the length extension direction of the first fixed frame 230.

[0136] Similarly, the second end 350b of the second swing arm is slidably connected to the second fixed frame 330 through the fourth slide groove 335, the extension direction of the fourth slide groove 335 intersecting the first direction X.

[0137] For example, the second fixing frame 330 may include a fourth slide groove 335, the extension direction of the fourth slide groove 335 may be perpendicular to the extension direction of the second fixing frame 330, and the extension direction of the fourth slide groove 335 may also be parallel to the support surface of the second fixing frame 330.

[0138] Accordingly, the second end 350b of the second swing arm may include a fourth slider 351, which is slidably connected to the fourth slide groove 335. With the above configuration, the second swing arm 350 can move relative to the second fixed frame 330, and the sliding direction of the second swing arm 350 relative to the second fixed frame 330 is perpendicular to the length extension direction of the second fixed frame 330.

[0139] Figure 15 for Figure 7 A cross-sectional view along section line DD when the first rotating mechanism is in the deployed state; Figure 16 for Figure 7 A cross-sectional view along section line DD when the first rotating mechanism is in the folded state.

[0140] Reference Figure 15 and Figure 16 As shown, during the transition from the unfolded state to the folded state of the first rotating mechanism 10, the first fixed frame 230 slides away from the first main shaft 100 relative to the second end 250b of the first swing arm, and the second fixed frame 330 slides away from the first main shaft 100 relative to the second end 350b of the second swing arm.

[0141] The above settings facilitate the adjustment of the length between the first fixing frame 230 and the second fixing frame 330, and help ensure that the length of the flexible screen 30 covering the first structural member 21 and the second structural member 22 does not change, thereby improving the phenomenon of the first rotating mechanism 10 squeezing or stretching the flexible screen 30.

[0142] Figure 17 An assembly structure diagram of a first rotating member and a first swing arm, a second rotating member and a second swing arm provided for embodiments of this application; Figure 18 An exploded view of the assembly structure of a first rotating member and a first swing arm, a second rotating member and a second swing arm provided in an embodiment of this application.

[0143] In some embodiments, refer to Figure 17 and Figure 18 The first end 220a of the first connecting rod and the first rotating member 210 can be rotatably connected via the first shaft 260. The second end 220b of the first connecting rod and the first swing arm 250 can be rotatably connected via the second shaft 270. The first end 320a of the second connecting rod and the second rotating member 310 can be rotatably connected via the third shaft 360. The second end 320b of the second connecting rod and the second swing arm 350 can be rotatably connected via the fourth shaft 370. The extension directions of the second shaft 270, the first shaft 260, the third shaft 360 and the fourth shaft 370 are all parallel to the first direction X.

[0144] With the above configuration, the first connecting rod 220 can be rotatably connected to the first rotating member 210 and the first swing arm 250 respectively via a solid shaft, and the second connecting rod 320 can be rotatably connected to the second rotating member 310 and the second swing arm 350 respectively via a solid shaft. This helps to ensure the connection strength between the first connecting rod 220 and the first rotating member 210, the first connecting rod 220 and the first swing arm 250, the second connecting rod 320 and the second rotating member 310, and the second connecting rod 320 and the second swing arm 350.

[0145] When the foldable electronic device 1 is in the unfolded state, the extension directions of the first axis 260 and the second axis 270 can both be parallel to the support plane S. This arrangement helps to reduce the space occupied by the first axis 260 and the second axis 270 in the direction perpendicular to the support plane S. Furthermore, when the foldable electronic device 1 is in the unfolded state, the extension directions of the first axis 260 and the second axis 270 can both be parallel to the first direction X. This arrangement helps to reduce the space occupied by the first axis 260 and the second axis 270 in the second direction Y.

[0146] Similarly, when the foldable electronic device 1 is in the unfolded state, the extension directions of the third axis 360 and the fourth axis 370 can both be parallel to the support plane S. This arrangement helps to reduce the space occupied by the third axis 360 and the fourth axis 370 in the direction perpendicular to the support plane S. Furthermore, when the foldable electronic device 1 is in the unfolded state, the extension directions of the third axis 360 and the fourth axis 370 can both be parallel to the first direction X. This arrangement helps to reduce the space occupied by the third axis 360 and the fourth axis 370 in the second direction Y.

[0147] Figure 19 for Figure 7 A cross-sectional view along section line EE when the first rotating mechanism is in the deployed state; Figure 20 for Figure 7 A cross-sectional view along the EE section line when the first rotating mechanism is in the folded state.

[0148] In some embodiments, combined with Figure 19 and Figure 20 As shown, when the foldable electronic device 1 is in a flat state, the orthographic projections of the second end 320b, the first end 320a, the first end 220a, and the second end 220b of the second link on the support plane S are arranged sequentially along the second direction Y. In the direction perpendicular to the support plane S, the distance between the first end 220a of the first link and the support plane S is less than the distance between the second end 220b of the first link and the support plane S, and the distance between the first end 320a of the second link and the support plane S is less than the distance between the second end 320b of the second link and the support plane S.

[0149] For example, the first link 220 and the second link 320 can be generally rod-shaped. When the foldable electronic device 1 is in the unfolded state, in the second direction Y, the first end 220a of the first link is closer to the first main shaft 100 than the second end 220b of the first link, and the first end 320a of the second link is closer to the first main shaft 100 than the second end 320b of the second link; in the direction perpendicular to the support plane S, the first end 220a of the first link is closer to the flexible screen 30 than the second end 220b of the first link.

[0150] In some embodiments, when the foldable electronic device 1 is in a folded state, in the third direction Z, the distance between the first end 220a of the first link and the first end 320a of the second link is less than the distance between the second end 220b of the first link and the second end 320b of the second link; in the second direction Y, the distance between the first end 220a of the first link and the first main shaft 100 is greater than the distance between the second end 220b of the first link and the first main shaft 100, and the distance between the first end 320a of the second link and the first main shaft 100 is greater than the distance between the second end 320b of the second link and the first main shaft 100.

[0151] For example, when the foldable electronic device 1 is in a folded state, in the second direction Y, the first end 220a of the first link is farther away from the first main shaft 100 than the second end 220b of the first link, and the first end 320a of the second link is farther away from the first main shaft 100 than the second end 320b of the second link.

[0152] Since the first end 220a of the first link is connected to the first rotating member 210, and the second end 220b of the first link is connected to the first swing arm 250, during the transition of the folding electronic device 1 from the unfolded state to the folded state, the first end 220a of the first link moves away from the first main shaft 100 relative to the second end 220b of the first link, which is beneficial for adjusting the distance of the first rotating member 210 relative to the first main shaft 100; at the same time, the first end 320a of the second link moves away from the first main shaft 100 relative to the second end 320b of the second link, which is beneficial for adjusting the distance of the second rotating member 310 relative to the first main shaft 100.

[0153] Conversely, during the transition of the folding electronic device 1 from a folded state to an unfolded state, the first end 220a of the first link moves toward the first main shaft 100 relative to the second end 220b of the first link, which helps to adjust the distance between the first rotating member 210 and the first main shaft 100; at the same time, the first end 320a of the second link moves toward the first main shaft 100 relative to the second end 320b of the second link, which helps to adjust the distance between the second rotating member 310 and the second main shaft 700.

[0154] In some embodiments, continue to refer to Figure 6 The first rotating shaft assembly 200 may include a first support plate 240. The first support plate 240 is slidably connected to the first rotating member 210, and the first support plate 240 is also rotatably connected to the first fixed frame 230. The second rotating shaft assembly 300 may include a second support plate 340. The second support plate 340 is slidably connected to the second rotating member 310, and the second support plate 340 is also rotatably connected to the second fixed frame 330.

[0155] With the above settings, the first rotating mechanism 10 can change the relative position of the first support plate 240 and the second support plate 340 to the main axis during the transition between the unfolded state and the folded state.

[0156] Continue to refer to Figure 13 When the folding electronic device 1 is in the unfolded state, the first fixing frame 230, the first support plate 240, the first main shaft 100, the second support plate 340 and the second fixing frame 330 can together form the support plane S of the first rotating mechanism 10.

[0157] In this configuration, the first support plate 240 and the first fixing frame 230 together constitute at least a portion of the support surface of the first rotating shaft assembly 200, and the second support plate 340 and the second fixing frame 330 together constitute at least a portion of the support surface of the second rotating shaft assembly 300. This arrangement improves the support effect of the first rotating shaft assembly 200 and the second rotating shaft assembly 300 on the flexible screen 30.

[0158] When the foldable electronic device 1 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 sequentially along the second direction Y. (Continue referring to...) Figure 14 When the foldable electronic device 1 is in a folded state, the distance between the first end 240a of the first support plate and the first end 340a of the second support plate in the third direction Z is less than the distance between the second end 240b of the first support plate in the third direction Z.

[0159] For example, in the direction near the first main shaft 100, the distance between the support surfaces of the first support plate 240 and the second support plate 340 gradually increases along the third direction Z. For example, the first fixing frame 230, the second fixing frame 330, the first support plate 240, the second support plate 340, the first rotating member 210, the second rotating member 310, and the first main shaft 100 together enclose the first accommodating space P1, which allows the flexible screen 30 to be bent into a teardrop shape or a near-teardrop shape. Through the above arrangement, excessive compression of the flexible screen 30 is avoided, thereby reducing the stress on the flexible screen 30 and improving the reliability of the flexible screen 30.

[0160] Figure 21 This is an exploded view of the assembly structure of a first fixing frame and other components, a second fixing frame and other components, provided as an embodiment of this application, from another perspective. This perspective is the viewpoint observed from the first main axis towards the flexible screen.

[0161] In some embodiments, the first support plate 240 and the first rotating member 210 can be slidably connected by a first guide shaft 213 and a first guide groove 241. The first guide shaft 213 can be disposed on the first support plate 240, and the first guide groove 241 can be disposed on the first rotating member 210. For example, the first guide shaft 213 can pass through the first guide groove 241. With the above arrangement, when the first guide shaft 213 moves along the extending direction of the first guide groove 241, the first support plate 240 and the first rotating member 210 slide relative to each other.

[0162] The second support plate 340 and the second rotating member 310 can be slidably connected by a second guide shaft 313 and a second guide groove 341. The second guide shaft 313 can be disposed on the second support plate 340, and the second guide groove 341 can be disposed on the second rotating member 310. For example, the second guide shaft 313 can pass through the second guide groove 341. With the above arrangement, when the second guide shaft 313 moves along the extending direction of the second guide groove 341, the second support plate 340 and the second rotating member 310 slide relative to each other.

[0163] In some embodiments, the first guide shaft 213 may be fixedly connected to the first rotating member 210, or the first guide shaft 213 may also be rotatably connected to the first rotating member 210. Similarly, the second guide shaft 313 may be fixedly connected to the second rotating member 310, or the second guide shaft 313 may also be rotatably connected to the second rotating member 310.

[0164] Figure 22 for Figure 7 A cross-sectional view along the CC section line when the first rotating mechanism is in the deployed state; Figure 23 for Figure 7 A cross-sectional view along the CC section line when the first rotating mechanism is in the folded state.

[0165] In some embodiments, refer to Figure 22 When the first rotating mechanism 10 is in the unfolded state: in the second direction Y, the distance between the first end 241a of the first guide groove and the first main shaft 100 is less than the distance between the second end 241b of the first guide groove and the first main shaft 100; in the direction perpendicular to the support plane S, the distance between the first end 241a of the first guide groove and the support surface of the first support plate 240 is less than the distance between the second end 241b of the first guide groove and the support surface of the first support plate 240.

[0166] When the first rotating mechanism 10 is in the unfolded state: in the second direction Y, the distance between the first end 341a of the second guide groove and the first main shaft 100 is less than the distance between the second end 341b of the second guide groove and the first main shaft 100; in the direction perpendicular to the support plane S, the distance between the first end 341a of the second guide groove and the support surface of the second support plate 340 is less than the distance between the second end 341b of the second guide groove and the support surface of the second support plate 340.

[0167] Combination Figure 22 and Figure 23 As shown, during the process of the rotating mechanism changing from the unfolded state to the folded state, the first guide shaft 213 moves relative to the first guide groove 241 along the direction from the second end 241b of the first guide groove to the first end 241a of the first guide groove, and the second guide shaft 313 moves relative to the fourth guide groove along the direction from the second end of the fourth guide groove to the first end of the fourth guide groove.

[0168] During the transition of the rotating mechanism from the folded state to the unfolded state, the first guide shaft 213 moves relative to the first guide groove 241 in the direction from the first end 241a of the first guide groove to the second end 241b of the first guide groove, and the second guide shaft 313 moves relative to the fourth guide groove in the direction from the first end of the fourth guide groove to the second end of the fourth guide groove.

[0169] like Figure 22 and Figure 23As shown, the first guide groove 241 and the second guide groove 341 can be straight. In some examples, the shapes of the first guide groove 241 and the second guide groove 341 can also be other shapes, such as arc shapes, which are not limited in this application embodiment.

[0170] Furthermore, in some embodiments, the first guide groove 241 may be disposed on the first support plate 240, and the first guide shaft 213 may be disposed on the first support plate 240. The second guide groove 341 may be disposed on the second support plate 340, and the second guide shaft 313 may be disposed on the second support plate 340.

[0171] In other embodiments, the first support plate 240 and the first rotating member 210 can be slidably connected via a virtual axis. Similarly, the second support plate 340 and the second rotating member 310 can also be slidably connected in other ways, and this application does not limit this to any particular method.

[0172] In some embodiments, continue to refer to Figure 6 The first support plate 240 and the first fixed frame 230 are rotatably connected by an arc-shaped slider and an arc-shaped groove. For ease of distinction, the arc-shaped groove provided on the first support plate 240 or the first fixed frame 230 is referred to as the third arc-shaped groove 232, and the arc-shaped slider provided on the first support plate 240 or the first fixed frame 230 is referred to as the third arc-shaped slider 242. The first support plate 240 may include the third arc-shaped slider 242, and the first fixed frame 230 may include the third arc-shaped groove 232.

[0173] The second support plate 340 and the second fixed frame 330 are rotatably connected by an arc-shaped slider and an arc-shaped groove. For ease of distinction, the arc-shaped groove provided on the second support plate 340 or the second fixed frame 330 is referred to as the fourth arc-shaped groove 332, and the arc-shaped slider provided on the second support plate 340 or the second fixed frame 330 is referred to as the fourth arc-shaped slider 342. The second support plate 340 may include the fourth arc-shaped slider 342, and the second fixed frame 330 may include the fourth arc-shaped groove 332.

[0174] Alternatively, in some embodiments, the first support plate 240 may include a third arc-shaped groove 232, and the first fixing frame 230 may include a third arc-shaped slider 242; the second support plate 340 may include a fourth arc-shaped groove 332, and the first fixing frame 230 may include a fourth arc-shaped slider 342.

[0175] In some embodiments, the first swing arm 250 may be slidably connected to the first support plate 240, and the second swing arm 350 may be slidably connected to the second support plate 340. For example, the first support plate 240 and the first swing arm 250 may be slidably connected by a rotating shaft and a slotted hole. The extending direction of the rotating shaft is parallel to the first direction X. The first support plate 240 may include a slotted hole, and the rotating shaft is also rotatably connected to the first swing arm 250. The rotating shaft passes through the slotted hole, and when the rotating shaft moves along the extending direction of the slotted hole, the first support plate 240 and the first swing arm 250 slide relative to each other.

[0176] For example, the first support plate 240 and the first swing arm 250 can be slidably connected via a pivot and a guide groove, wherein the guide groove can be straight or curved. Alternatively, the first support plate 240 and the first swing arm 250 can be slidably connected via a virtual axis. The sliding connection between the second support plate 340 and the second swing arm 350 can be similar and will not be described further here.

[0177] Figure 24 An exploded view of the assembly structure of the first and second swing arms with the main shaft, as provided in the embodiments of this application.

[0178] Reference Figure 24 The first main shaft 100 may include four mounting shafts 190. When the folding electronic device 1 is in the unfolded state, the four mounting shafts 190 are arranged sequentially along the second direction Y, and all four mounting shafts 190 extend along the first direction X. The first end 250a of the first swing arm may be sleeved on a mounting shaft 190 so that the first end 250a of the first swing arm can be rotatably connected to the first main shaft 100. The first end 350a of the second swing arm may be sleeved on a mounting shaft 190 so that the first end 350a of the second swing arm can be rotatably connected to the first main shaft 100.

[0179] Based on the above structure, the first spindle 100 may further include a first elastic element 180 and a first damping slider 170. The first elastic element 180 may be disposed on the first spindle 100 along a first direction X, and the first damping slider 170 may be slidably connected to the first spindle 100, and the first damping slider 170 may slide relative to the first spindle 100 along the first direction X. For example, the first elastic element 180 may include a spring, and the number of springs may be four, and the four springs may be correspondingly sleeved on the four mounting shafts 190.

[0180] All four mounting shafts 190 can be slidably connected to the first damping slider 170. There can be two first damping sliders 170, and these two sliders can be arranged along a first direction X. The first end of the first elastic element 180 is connected to one of the first damping sliders 170, and the second end of the first elastic element 180 is connected to the other first damping slider 170. Alternatively, in some other embodiments, there can be only one first damping slider 170, where the first end of the first elastic element 180 can be connected to the first main shaft 100, and the second end of the first elastic element 180 can be connected to the first damping slider 170.

[0181] The first swing arm 250 and the second swing arm 350 together constitute a swing arm assembly. In an embodiment where there are two first damping sliders 170, the number of swing arm assemblies in the first rotating mechanism 10 can be two, with one swing arm assembly located on the side of a first damping slider 170 away from the first end of the first elastic member 180, and the other swing arm assembly located on the side of a first damping slider 170 away from the second end of the first elastic member 180. The first swing arm 250 in different swing arm assemblies may have structural differences, and similarly, the second swing arm 350 in different swing arm assemblies may have structural differences.

[0182] 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.

[0183] Furthermore, the first end 250a of the first swing arm may include a first concave-convex surface 258, the first damping slider 170 may include a third concave-convex surface 189 that cooperates with the first concave-convex surface 258, the first end 350a of the second swing arm may include a second concave-convex surface 358, and the first damping slider 170 may include a fourth concave-convex surface 188 that cooperates with the third concave-convex surface 189.

[0184] When the first rotating mechanism 10 switches between the unfolded and folded states, the first swing arm 250 rotates relative to the first main shaft 100. Since the first concave-convex surface 258 of the first swing arm 250 engages with the third concave-convex surface 189 of the first damping slider 170, the first swing arm 250 drives the first damping slider 170 to slide relative to the first main shaft 100 along the first direction X. The first damping slider 170 drives the first elastic element 180 to compress and deform. The elastic restoring force of the first elastic element 180 acts as a damping force, thus providing a damping effect when the first swing arm 250 rotates relative to the first main shaft 100.

[0185] Simultaneously, when the first rotating mechanism 10 switches between the unfolded and folded states, the second swing arm 350 rotates relative to the first main shaft 100. Since the second concave-convex surface 358 of the second swing arm 350 engages with the fourth concave-convex surface 188 of the first damping slider 170, the second swing arm 350 drives the first damping slider 170 to slide relative to the first main shaft 100 along the first direction X. The first damping slider 170 drives the first elastic element 180 to compress and deform. The elastic restoring force of the first elastic element 180 acts as a damping force, thus providing a damping effect when the second swing arm 350 rotates relative to the first main shaft 100.

[0186] In some embodiments, the first end 250a of the first swing arm may further include a first gear 259, and the first main shaft 100 may further include a third gear 199 meshing with the first gear 259. The first end 350a of the second swing arm may further include a second gear 359, and the first main shaft 100 may further include a fourth gear 198 meshing with the second gear 359. The third gear 199 also meshes with the fourth gear 198.

[0187] For example, the first gear 259, the second gear 359, the fourth gear 198 and the third gear 199 can be fitted onto the four mounting shafts 190 of the first spindle 100.

[0188] When the first swing arm 250 rotates relative to the first main shaft 100, the first gear 259 drives the third gear 199 to rotate, which in turn drives the fourth gear 198 to rotate. The fourth gear 198 then drives the second gear 359 to rotate, causing the second swing arm 350 to rotate relative to the first main shaft 100. Through this configuration, the first swing arm 250 rotates relative to the first main shaft 100 while the second swing arm 350 rotates relative to the first main shaft 100, thus achieving synchronous movement of the first and second swing arms 250.

[0189] Of course, in some other embodiments, the first swing arm 250 and the second swing arm 350 can also achieve synchronous movement through other structures, and this application embodiment does not specifically limit this.

[0190] For example, the first spindle 100 may further include a synchronous drive slider, which is slidably connected to the first spindle 100 along a first direction X. The synchronous drive slider may be located between two through holes at the first end 250a of the first swing arm and between two through holes at the first end 350a of the second swing arm. Furthermore, the synchronous drive slider and the first swing arm 250 may each include two cooperating helical surfaces, and the synchronous drive slider and the second swing arm 350 may each include two cooperating helical surfaces.

[0191] With the above configuration, through the cooperation between the spiral surfaces, the first swing arm 250 can rotate relative to the first main shaft 100 while the second swing arm 350 rotates relative to the first main shaft 100, thereby achieving synchronous movement of the first swing arm 250 and the second swing arm 350.

[0192] The following reference Figures 25 to 28 The structure of the second rotating mechanism 40 will be described.

[0193] In some embodiments, 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.

[0194] For example, the third rotating member 810 may include a flat plate structure, and the fourth rotating member 910 may include a flat plate structure, so that the third rotating member 810, the second main shaft 700 and the fourth rotating member 910 can jointly achieve the supporting function of the flexible screen 30.

[0195] When the foldable electronic device 1 is in the 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.

[0196] For example, in the direction near the second main shaft 700, the distance between the support surfaces of the third rotating member 810 and the fourth rotating member 910 along the third direction Z remains unchanged. For example, the flexible screen 30 can be bent into a U-shape within the second screen-accommodating space jointly enclosed by the third rotating member 810, the second main shaft 700, and the fourth rotating member 910. This arrangement helps to increase the volume of the second screen-accommodating space, avoids excessive compression of the flexible screen 30, thereby reducing the stress on the flexible screen 30 and improving its reliability.

[0197] Figure 25 An exploded view of the structure of a second main shaft provided in an embodiment of this application.

[0198] In some embodiments, refer to Figure 25 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.

[0199] The second main outer shaft 710 and the second main inner shaft together form a fifth arc-shaped slide groove 701 and a sixth arc-shaped slide groove 702. The fifth arc-shaped slide groove 701 and the sixth arc-shaped slide groove 702 can be arranged at intervals along the second direction Y, and the central axis of the fifth arc-shaped slide groove 701 and the central axis of the sixth arc-shaped slide groove 702 are both parallel to the first direction X.

[0200] Figure 26 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.

[0201] Correspondingly, combined Figure 26 As shown, the first end 810a of the third rotating member may include a fifth arc-shaped slider 811, which is slidably connected to a fifth 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 a sixth arc-shaped slider 911, which is slidably connected to a sixth 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.

[0202] Figure 27 for Figure 10 A cross-sectional view along section line KK when the second rotating mechanism is in the unfolded state; Figure 28 for Figure 10 A cross-sectional view along section line KK when the second rotating mechanism is in the folded state.

[0203] Reference Figure 27 and Figure 28 As the rotating mechanism transitions from a folded state to an unfolded state, the portion of the fifth arc-shaped slider 811 located in the fifth arc-shaped groove 701 gradually increases, and the portion of the sixth arc-shaped slider 911 located in the sixth arc-shaped groove 702 gradually increases. Conversely, as the rotating mechanism transitions from an unfolded state to a folded state, the portion of the fifth arc-shaped slider 811 located in the fifth arc-shaped groove 701 gradually decreases, and the portion of the sixth arc-shaped slider 911 located in the sixth arc-shaped groove 702 gradually decreases.

[0204] In addition, in some embodiments, the third rotating member 810 may also include a fifth arc-shaped slide groove 701, and the second main shaft 700 may include a fifth arc-shaped slider 811; the fourth rotating member 910 may also include a sixth arc-shaped slide groove 702, and the second main shaft 700 may include a sixth arc-shaped slider 911.

[0205] 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.

[0206] In some embodiments, the second rotating mechanism 40 further includes a synchronous gear 780, a first rack 791 and a second rack 792 disposed on the second main shaft 700. The first rack 791 meshes with the synchronous gear 780 and is also connected to the first end 810a of the third rotating member. The second rack 792 meshes with the synchronous gear 780 and is also connected to the first end 910a of the fourth rotating member.

[0207] 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 791; 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 792.

[0208] 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 791 to move, and the first rack 791 drives the synchronous gear 780 to rotate. As the synchronous gear 780 rotates, the second rack 792 moves, and the direction of movement of the second rack 792 is opposite to the direction of movement of the first rack 791. The second rack 792 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.

[0209] In some embodiments, the third rotating member 810 and the fourth rotating member 910 may also be synchronously rotated by four meshing gears arranged in sequence. For example, the two outermost gears may be respectively disposed on the third rotating member 810 and the fourth rotating member 910.

[0210] In some embodiments, the first end 810a of the third rotating member includes a fifth concave-convex surface, and the first end 910a of the fourth rotating member includes a sixth concave-convex surface.

[0211] The second rotating mechanism 40 further includes a second damping slider 790 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 790 is slidably connected to the second main shaft 700 and can slide relative to the second main shaft 700 along the first direction X. The first end of the second damping slider 790 contacts the second elastic element 770. The second end of the second damping slider 790 includes a seventh concave-convex surface 789 and an eighth concave-convex surface 788. The seventh concave-convex surface 789 cooperates with the fifth concave-convex surface 812, and the eighth concave-convex surface 788 cooperates with the sixth concave-convex surface 912.

[0212] For example, the second elastic element 770 may include four springs, which may be disposed on the second main shaft 700 along the first direction X. The first end of the second elastic element 770 may contact the second main shaft 700, and the second end of the second elastic element 770 may be connected to the second damping slider 790.

[0213] When the second rotating mechanism 40 switches between the unfolded and folded states, the third rotating member 810 rotates relative to the second main shaft 700. Since the fifth concave-convex surface 812 of the third rotating member 810 engages with the seventh concave-convex surface 789 of the second damping slider 790, the third rotating member 810 drives the second damping slider 790 to slide relative to the second main shaft 700 along the first direction X. The second damping slider 790 drives the second elastic member 770 to compress and deform. The elastic restoring force of the second elastic member 770 acts as a damping force, thus providing a damping effect when the third rotating member 810 rotates relative to the second main shaft 700.

[0214] Simultaneously, when the second rotating mechanism 40 switches between the unfolded and folded states, the fourth rotating member 910 rotates relative to the second main shaft 700. Since the sixth concave-convex surface 912 of the fourth rotating member 910 engages with the eighth concave-convex surface 788 of the second damping slider 790, the fourth rotating member 910 drives the second damping slider 790 to slide relative to the second main shaft 700 along the first direction X. The second damping slider 790 then drives the second elastic member 770 to compress and deform. The elastic restoring force of the second elastic member 770 acts as a damping force, thus providing a damping effect when the fourth rotating member 910 rotates relative to the second main shaft 700.

[0215] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable electronic device (1) characterized in that, The utility model relates to a flexible screen (30); First structure (21), second structure (22) and third structure (21) are located the same side of flexible screen (30); First rotation mechanism (10), first rotation mechanism (10) includes first rotation shaft subassembly (200), first main shaft (100) and second rotation shaft subassembly (300), and first main shaft (100) extends along first direction (X);Wherein, First rotation shaft subassembly (200) includes first rotation piece (210), first swing arm (250), first connecting rod (220) and first fixed frame (230), and the first end (210a) of first rotation piece is rotatably connected with first main shaft (100), and the second end (210b) of first rotation piece is slidably connected with first fixed frame (230) through first sliding groove (231), and the second end (210b) of first rotation piece can slide relative to first fixed frame (230) along the extension direction of first sliding groove (231), and the first end (250a) of first swing arm is rotatably connected with first main shaft (100), and the second end (210b) of first swing arm is slidably connected with first fixed frame (230), and the first end (220a) of first connecting rod is rotatably connected with first rotation piece (210), and the second end (220b) of first connecting rod is rotatably connected with first swing arm (250), and first fixed frame (230) is fixedly connected with first structure (21); Second rotation shaft subassembly (300) includes second rotation piece (310), second swing arm (350), second connecting rod (320) and second fixed frame (330), and the first end (310a) of second rotation piece is rotatably connected with first main shaft (100), and the second end (310b) of second rotation piece is slidably connected with second fixed frame (330) through second sliding groove (331), and the first end (350a) of second swing arm is rotatably connected with first main shaft (100), and the second end (210b) of second swing arm is slidably connected with second fixed frame (330), and the first end (320a) of second connecting rod is rotatably connected with second rotation piece (310), and the second end (320b) of second connecting rod is rotatably connected with second swing arm (350), and second fixed frame (330) is fixedly connected with second structure (22); Second rotation mechanism (40), second rotation mechanism (40) includes third rotation piece (810), second main shaft (700) and fourth rotation piece (910), and second main shaft (700) extends along first direction (X);Wherein, ​ A first end (810a) of the third rotating member is rotationally connected with the second main shaft (700), and a second end (810b) of the third rotating member is fixedly connected with the second structural member (22). A first end (910a) of the fourth rotating member is rotationally connected with the second main shaft (700), and a second end (910b) of the fourth rotating member is fixedly connected with the third structural member (23); When the folding electronic device (1) is in the unfolded state, the third structural member (23), the second structural member (22), and the first structural member (21) are sequentially arranged along a second direction (Y) 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) jointly form a support plane (S) for supporting the flexible screen (30), and the extension direction of the first sliding groove (231) and the extension direction of the second sliding groove (331) both intersect with the support plane (S). When the folding 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 a third direction (Z) perpendicular to the first direction (X) and the second direction (Y).

2. The folded electronic device (1) according to claim 1, characterized in that When the folding electronic device (1) is in the 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) surrounds a first accommodating space (P1), and part of the flexible screen (30) is located in the first accommodating space (P1). The second rotating mechanism (40) surrounds a second accommodating space (P2), and part of the flexible screen (30) and part of the first structural member (21) are located in the second accommodating space (P2).

3. The folding electronic device (1) of claim 1, wherein a second end (210b) of the first rotating member is slidingly connected with the first fixed frame (230) through the first sliding groove (231) and a first sliding block (212), the second end (210b) of the first rotating member comprises the first sliding block (212), the first fixed frame (230) comprises the first sliding groove (231), or the second end (210b) of the first rotating member comprises the first sliding groove (231), and the first fixed frame (230) comprises the first sliding block (212). ​ The second end (310b) of the second rotating member is slidably connected with the second fixed frame (330) through the second sliding groove (331) and the second sliding block (312), the second end (310b) of the second rotating member comprises the second sliding block (312), and the second fixed frame (330) comprises the second sliding groove (331), or the second end (310b) of the second rotating member comprises the second sliding groove (331), and the second fixed frame (330) comprises the second sliding block (312).

4. The folded electronic device (1) according to claim 3, characterized in that When the folding electronic device (1) is in the unfolded state: In the second direction (Y), the distance between the first end (231a) of the first sliding groove and the first main shaft (100) is smaller than the distance between the second end (231b) of the first sliding groove and the first main shaft (100), and in the direction perpendicular to the support plane (S), the distance between the first end (231a) of the first sliding groove and the support plane (S) is greater than the distance between the second end (231b) of the first sliding groove and the support plane (S); In the second direction (Y), the distance between the first end (331a) of the second sliding groove and the first main shaft (100) is smaller than the distance between the second end (331b) of the second sliding groove and the first main shaft (100), and in the direction perpendicular to the support plane (S), the distance between the first end (331a) of the second sliding groove and the support plane (S) is greater than the distance between the second end (231b) of the first sliding groove and the support plane (S).

5. The folded electronic device (1) according to claim 1, characterized in that During the conversion of the first rotating mechanism (10) from the unfolded state to the folded state, the first sliding block (212) moves relative to the first sliding groove (231) in the direction from the second end (231b) of the first sliding groove to the first end (231a) of the first sliding groove, and the second sliding block (312) moves relative to the second sliding groove (331) in the direction from the second end (331b) of the second sliding groove to the first end (331a) of the second sliding groove. During the conversion of the first rotating mechanism (10) from the folded state to the unfolded state, the first sliding block (212) moves relative to the first sliding groove (231) in the direction from the first end (231a) of the first sliding groove to the second end (231b) of the first sliding groove, and the second sliding block (312) moves relative to the second sliding groove (331) in the direction from the first end (331a) of the second sliding groove to the second end (331b) of the second sliding groove.

6. The folded electronic device (1) according to claim 1, characterized in that The first end (220a) of the first connecting rod is rotationally connected with the first rotating member (210) through a first shaft (260), the second end (220b) of the first connecting rod is rotationally connected with the first swing arm (250) through a second shaft (270), the first end (320a) of the second connecting rod is rotationally connected with the second rotating member (310) through a third shaft (360), the second end (320b) of the second connecting rod is rotationally connected with the second swing arm (350) through a fourth shaft (370), and the extending directions of the second shaft (270), the first shaft (260), the third shaft (360) and the fourth shaft (370) are parallel to the first direction (X).

7. The foldable electronic device (1) according to claim 6, characterized in that, when the foldable electronic device (1) is in the unfolded state, the normal projections of the second end (320b) of the second connecting rod, the first end (320a) of the second connecting rod, the first end (220a) of the first connecting rod and the second end (220b) of the first connecting rod on the support plane (S) are arranged in the second direction (Y) in sequence, and in the direction perpendicular to the support plane (S), the distance between the first end (220a) of the first connecting rod and the support plane (S) is smaller than the distance between the second end (220b) of the first connecting rod and the support plane (S), and the distance between the first end (320a) of the second connecting rod and the support plane (S) is smaller than the distance between the second end (320b) of the second connecting rod and the support plane (S); when the foldable electronic device (1) is in the folded state, in the third direction (Z), the distance between the first end (220a) of the first connecting rod and the first end (320a) of the second connecting rod is smaller than the distance between the second end (220b) of the first connecting rod and the second end (320b) of the second connecting rod; in the second direction (Y), the distance between the first end (220a) of the first connecting rod and the first main shaft (100) is greater than the distance between the second end (220b) of the first connecting rod and the first main shaft (100), and the distance between the first end (320a) of the second connecting rod and the first main shaft (100) is greater than the distance between the second end (320b) of the second connecting rod and the first main shaft (100).

8. The folded electronic device (1) according to any one of claims 1-7, characterized by The second end (250b) of the first swing arm is also slidably connected with the first fixed frame (230) through a third sliding groove (235), the second end (250b) of the first swing arm can slide relative to the first fixed frame (230) along the extending direction of the third sliding groove (235), and the extending direction of the third sliding groove (235) intersects the first direction (X). The second end (350b) of the second swing arm is also slidably connected to the second fixed frame (330) through a fourth sliding groove (335), and the second end (350b) of the second swing arm can slide relative to the second fixed frame (330) along the extension direction of the fourth sliding groove (335), and the extension direction of the fourth sliding groove (335) intersects the first direction (X).

9. The foldable electronic device (1) according to any one of claims 1-7, characterized in that, The first rotating shaft assembly (200) comprises a first support plate (240), the first support plate (240) is slidably connected to the first rotating part (210), and the first support plate (240) is further rotationally connected to the first fixed frame (230); The second rotating shaft assembly (300) comprises a second support plate (340), the second support plate (340) is slidably connected to the second rotating part (310), and the second support plate (340) is further rotationally connected to the second fixed frame (330); When the foldable electronic device (1) is in the unfolded state, the first fixed frame (230), the first support plate (240), the first main shaft (100), the second support plate (340) and the second fixed frame (330) jointly form a support plane (S) of the first rotating mechanism (10), and 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 sequentially arranged along the second direction (Y); When the foldable electronic device (1) 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 in the third direction (Z) is less than the distance between the second end (240b) of the first support plate and the second end (240b) of the first support plate in the third direction (Z).

10. The foldable electronic device (1) according to any one of claims 1-7, characterized in that, The first end (250a) of the first swing arm comprises a first concave-convex surface (258), and the first end (350a) of the second swing arm comprises a second concave-convex surface (358); The first rotating mechanism (10) further comprises a first damping sliding block (170) and a first elastic member (180), the first elastic member (180) is arranged on the first main shaft (100) along the first direction (X), the first damping sliding block (170) is slidably connected to the first main shaft (100), the first damping sliding block (170) can slide relative to the first main shaft (100) along the first direction (X), the first end of the first damping sliding block (170) is in contact with the first elastic member (180), and the second end of the first damping sliding block (170) comprises a third concave-convex surface (189) matched with the first concave-convex surface (258) and a fourth concave-convex surface (188) matched with the second concave-convex surface (358).

11. The folded electronic device (1) according to any one of claims 1-7, characterized by The first end (250a) of the first swing arm further comprises a first gear (259), and the second end (350b) of the second swing arm further comprises a second gear (359); The first rotating mechanism (10) further comprises a third gear (199) and a fourth gear (198) in engagement, both of which are arranged on the first main shaft (100), the third gear (199) is in engagement with the first gear (259), and the fourth gear (198) is in engagement with the second gear (359).

12. The foldable electronic device (1) according to any one of claims 1-7, characterized in that, When the foldable electronic device (1) is in the unfolded state, the third rotating member (810), the second main shaft (700) and the fourth rotating member (910) jointly constitute a support plane (S) of the second rotating mechanism (40); When the foldable electronic device (1) is in the folded state, the support plane of the third rotating member (810) is parallel to the support plane of the fourth rotating member (910), and both the support plane of the third rotating member (810) and the support plane of the fourth rotating member (910) are perpendicular to the third direction (Z).

13. The folded electronic device (1) according to any one of claims 1-7, characterized by The second rotating mechanism (40) further comprises a synchronization gear (780), a first gear rack (791) and a second gear rack (792) arranged on the second main shaft (700), the first gear rack (791) is in engagement with the synchronization gear (780), and the first gear rack (791) is further connected with the first end (810a) of the third rotating member, the second gear rack (792) is in engagement with the synchronization gear (780), and the second gear rack (792) is further connected with the first end (910a) of the fourth rotating member.

14. The folded electronic device (1) according to any one of claims 1-7, characterized by The first end (810a) of the third rotating member comprises a fifth concave-convex surface (812), and the first end (910a) of the fourth rotating member comprises a sixth concave-convex surface (912). The second rotating mechanism (40) further comprises a second damping sliding block (790) and a second elastic member (770), the second elastic member (770) is arranged on the second main shaft (700) along the first direction (X), the second damping sliding block (790) is in sliding connection with the second main shaft (700), the second damping sliding block (790) can slide along the first direction (X) relative to the second main shaft (700), the first end of the second damping sliding block (790) is in contact with the second elastic member (770), and the second end of the second damping sliding block (790) comprises a seventh concave-convex surface (789) matched with the fifth concave-convex surface (812) and an eighth concave-convex surface (788) matched with the sixth concave-convex surface (912).

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