Folding components, folding devices and electronic devices

Abstract

This application discloses a folding component, a folding device, and an electronic device. The electronic device includes a flexible display screen and a folding device supporting the flexible display screen. The folding device includes a first housing, a folding component, and a second housing connected in sequence. The folding component includes a first swing arm, a second swing arm, a stop block, and a limiting block. By using the stop block to stop the first and second swing arms, the angle between the first and second housings in the open state can be precisely controlled, preventing over-folding of the folding device and thus improving the service life of the flexible display screen. The limiting block reinforces the stop block, making the stop block's stopping reliability higher.

Description

Technical Field

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

[0002] In recent years, flexible displays have been widely used in various foldable electronic devices due to their lightweight, thinness, and durability. Foldable electronic devices also include folding devices to support the flexible displays. These folding devices typically consist of two housings and a folding assembly connecting the two housings. The two housings fold or unfold relative to each other through the deformation of the folding assembly, thereby causing the flexible displays to fold or unfold.

[0003] Currently, folding devices are prone to over-folding when the two shells are unfolded to the open state, causing the actual angle between the two shells to be greater than the ideal angle. Since the design dimensions and structure of flexible displays are typically based on this ideal angle, over-folding during unfolding stretches the flexible display, severely impacting its lifespan. Summary of the Invention

[0004] This application provides a folding component, a folding device, and an electronic device. The electronic device includes a flexible display screen and a folding device supporting the flexible display screen. The folding device includes a first housing, a folding component, and a second housing connected in sequence. The folding component precisely controls the angle between the first housing and the second housing in the open state through an adjustable rotation mechanism, avoiding over-folding and thus improving the service life of the flexible display screen.

[0005] In a first aspect, this application provides a folding assembly that can be applied to a foldable electronic device. The folding device of the electronic device includes a first housing, a second housing, and the folding assembly. The folding device is used to support a flexible display screen. The folding assembly includes a main shaft, a first fixing frame, a first swing arm, a second fixing frame, a second swing arm, a limiting member, a stop member, a second fastener, and a first elastic member. The first fixing frame is used to fixably connect to the first housing, and the second fixing frame is used to fixably connect to the second housing.

[0006] The first end of the first swing arm is rotatably connected to the 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 swing arm has a first stop end face. The first end of the second swing arm is rotatably connected to the main shaft, and the second end of the second swing arm is slidably connected to the second fixed frame. The first end of the second swing arm has a second stop end face. A limiting member is fixed to the main shaft. The limiting member has a limiting surface that is inclined relative to the thickness direction of the main shaft and to the extension direction of the main shaft. The extension direction of the main shaft is perpendicular to the thickness direction of the main shaft. The stop member includes a first stop part, a second stop part, and a mounting part. The first stop part and the second stop part are respectively fixed to both sides of the mounting part. One end of the second fastener is connected to the mounting part, and the other end is threaded to the main shaft. A first elastic member abuts against the mounting part and the main shaft. The stop member abuts against the limiting surface.

[0007] The first stop portion has a first stop surface, and the second stop portion has a second stop surface. Neither the first stop surface nor the second stop surface is parallel to the thickness direction of the main shaft. During the relative unfolding of the first and second swing arms, the first stop end face moves towards the first stop surface, and the second stop end face moves towards the second stop surface. When the first and second swing arms are in the open state, the first stop end face at least partially abuts against the first stop surface, and the second stop end face at least partially abuts against the second stop surface.

[0008] In this application, by setting a stop-fit ​​structure between the first stop surface of the stop member and the first stop end surface of the first swing arm, and a stop-fit ​​structure between the second stop surface of the stop member and the second stop end surface of the second swing arm, the first swing arm and the second swing arm can be restricted from continuing to rotate relative to each other when they are unfolded to the open state, so that the included angle between the first swing arm and the second swing arm can remain at a preset angle, thus avoiding excessive rotation.

[0009] Since the first swing arm is slidably connected to the first fixed frame, which is used to fix the first housing, and the second swing arm is slidably connected to the second fixed frame, which is used to fix the second housing, the stopping member's stop on the first and second swing arms is also the stop on the first and second housings. In the electronic device, when the first and second housings rotate relative to each other to the open state, the first and second fixed frames also rotate relative to each other to the open state. Consequently, the first and second swing arms also rotate relative to each other to the open state. At this time, the first end of the first swing arm and the first end of the second swing arm abut against the stopping member. The stopping member is used to prevent the relative rotation angle between the first and second swing arms from exceeding a preset value, thereby preventing the relative rotation angle between the first and second fixed frames and the first and second housings from exceeding a preset value. Therefore, the stopping member's stop on the first and second swing arms can prevent the first and second housings from over-folding when the electronic device is in the open state, thus avoiding the flexible display screen being pulled by the first and second housings, improving the reliability of the flexible display screen, and increasing its service life.

[0010] Furthermore, due to the stopping effect of the stop member, the angle between the first housing and the second housing in the open state is equal to a preset value. For example, when the preset value is 180°, the folding device can provide a flat supporting environment for the flexible display screen. The good flatness of the flexible display screen is beneficial to optimizing the overall lighting and shadow of electronic devices.

[0011] Furthermore, by setting the first stop surface and the second stop surface on the same stop member, and using the same stop member to stop the first swing arm and the second swing arm, the number of stop members required for the folding assembly can be effectively reduced, the space occupied by the stop members inside the folding assembly can be reduced, and the cost can be reduced.

[0012] In this application, since the limiting member is fixed to the main shaft and the stop member abuts against the limiting surface of the limiting member, the limiting member can limit the stop member, thereby increasing the structural stability and rigidity of the stop member relative to the main shaft. The stop member can better stop the first swing arm and the second swing arm, resulting in a better stopping effect and making the flattened state of the folding assembly and electronic device more stable and reliable.

[0013] Because the second fastener is threadedly connected to the spindle, its position relative to the spindle is adjustable. Therefore, when the second fastener moves along the thickness direction of the spindle, the stop member, in cooperation with the second fastener and the first elastic member, can follow the second fastener and move along the thickness direction of the spindle, thus adjusting its position. Specifically, the first and second stop surfaces of the stop member are not parallel to the thickness direction of the spindle; that is, both are inclined relative to the thickness direction of the spindle. When the stop member moves along the thickness direction of the spindle, the first and second stop surfaces also move along the thickness direction. When the first and second swing arms are in the open state, the position of the first stop end face of the first swing arm changes with the first stop surface, and the position of the second stop end face of the second swing arm changes with the second stop surface. Thus, by adjusting the position of the stop member, the angle between the first and second swing arms can be adjusted.

[0014] For example, the first and second stop surfaces of the stop member can both be perpendicular to the thickness direction of the spindle. Alternatively, the angle between the first stop surface and the thickness direction of the spindle is greater than or equal to 45°, for example, within the range of 60° to 90°; the angle between the second stop surface and the thickness direction of the spindle is greater than or equal to 45°, for example, within the range of 60° to 90°. In this case, as the stop member moves in the thickness direction of the spindle, the angle between the first and second swing arms can be effectively adjusted with a small displacement of the first and second stop surfaces.

[0015] In some possible implementations, the folding assembly further includes a first rotating arm and a second rotating arm. A first end of the first rotating arm is rotatably connected to a main shaft, and a second end of the first rotating arm is rotatably connected to a first fixed frame. A second end of the second rotating arm is rotatably connected to the main shaft, and a second end of the second rotating arm is rotatably connected to a second fixed frame.

[0016] In this implementation, the first swing arm is rotatably connected to the main shaft and slidably connected to the first fixed frame, forming a linkage-slider structure; the first rotating arm is rotatably connected to the main shaft and rotatably connected to the first fixed frame, forming a linkage structure; the second swing arm is rotatably connected to the main shaft and slidably connected to the second fixed frame, forming a linkage-slider structure; the second rotating arm is rotatably connected to the main shaft and rotatably connected to the second fixed frame, forming a linkage structure. The folding assembly achieves the relative unfolding and folding process through the linkage-slider structure and the connecting structure. It has few components, simple mating relationships and positions, and the components are easy to manufacture and assemble, which is beneficial for mass production. Furthermore, since the main shaft is linked to the first fixed frame through the first swing arm and the first rotating arm, and linked to the second fixed frame through the second swing arm and the second rotating arm, the folding assembly has better tensile and compressive strength.

[0017] In some possible implementations, the mounting part has a second through hole with at least two stops arranged in the extension direction of the spindle, through which a second fastener passes.

[0018] In this implementation, when the second fastener passes through the stop position of the stop member and is threadedly connected to the spindle, the stop member remains at a certain position relative to the spindle, and the relative positional relationship between the two is stable and reliable. When the second fastener switches from one stop position of the stop member to another stop position, the stop position of the stop member relative to the spindle changes, but the two remain relatively fixed after the change. Since at least two stop positions are arranged in the extension direction of the spindle, when the second fastener switches between different stop positions, the first stop end face and the second stop end face can adjust their positions in the thickness direction of the spindle, thereby adjusting the angle between the first swing arm and the second swing arm when in the open state.

[0019] In some possible implementations, the second through hole is an oblong or rectangular hole, and the length direction of the second through hole is parallel to the extension direction of the spindle.

[0020] In this implementation, by making the length direction of the second through hole parallel to the extension direction of the main shaft, multiple stop positions can be arranged along the extension direction of the main shaft, the stop member can be continuously adjusted in the extension direction of the main shaft, the first stop end face and the second stop end face can be continuously adjusted in the thickness direction of the main shaft, and the included angle between the first swing arm and the second swing arm can be continuously adjusted when in the open state.

[0021] In some possible implementations, the first elastic element can be an elastic washer, which may have a through hole. The elastic washer can be made of metal, such as a spring washer or a leaf spring; alternatively, it can be made of elastic rubber. In other implementations, the first elastic element may include multiple stacked components. For example, the first elastic element may include stacked spring washers and flat washers, where the flat washers can be metal washers or rubber washers. In still other implementations, the first elastic element may also be a spring.

[0022] In some possible implementations, the folding assembly further includes a second elastic element. This second elastic element is mounted on the main shaft and located on the side of the stop member facing away from the limiting member. The second elastic element abuts against the mounting portion, and the elastic force generated by the second elastic element causes the stop member to abut against the limiting surface. At this point, the contact relationship between the limiting member and the stop member is stable, allowing the limiting member to better limit the stop member, resulting in a stable and reliable stopping effect for the stop member.

[0023] In some possible implementations, the folding assembly further includes a third pivot with a limiting flange. The third pivot is inserted into the mounting portions of the second elastic member and the stop member. The two ends of the second elastic member abut against the limiting flange of the third pivot and the mounting portion of the stop member, respectively. The end of the third pivot away from the second elastic member is mounted on the main shaft. When the second elastic member is in a compressed state, the elastic force generated by the second elastic member allows the third pivot to abut against the main shaft and also causes the stop member to tend to move closer to the limiting member, thus causing the stop member to abut against the limiting member. In other implementations, the third pivot may not have a limiting flange. The end of the second elastic member away from the stop member can abut against the main shaft or other structural components. The second elastic member can also be in a compressed state to generate an elastic force, causing the stop member to abut against the limiting member.

[0024] In some implementations, the folding assembly may not include the second elastic element, and static friction may exist between the limiting surface of the limiting element and the stop element, and static friction may exist between the stop element and the first elastic element. In this implementation, the folding assembly uses the static friction between the limiting element and the stop element to balance the component of the supporting force of the limiting element on the stop element in the extension direction of the main shaft, so that the position of the stop element relative to the main shaft is stable, and the stopping effect of the stop element on the first swing arm and the second swing arm is reliable.

[0025] In some possible implementations, the stop element has an adjustment surface that is parallel to and in contact with the limiting surface.

[0026] In this implementation, the adjustment surface and the contact surface are in surface contact. Therefore, the contact area between the adjustment surface and the limiting surface is large and the contact relationship is stable. The limiting component can better limit the stop component to ensure the stability of the relative positional relationship between the stop component and the spindle.

[0027] In some possible implementations, a friction layer is provided on the limiting surface and / or the adjusting surface to increase the static friction coefficient between the limiting surface and the adjusting surface. For example, a friction layer can be provided on the limiting surface. The friction layer can be fixed to the limiting surface by assembly, and the friction layer can be made of a material with a high static friction coefficient, such as a frosted film or a film with textured surfaces. Alternatively, the friction layer can be formed on the surface of the limiting surface by roughening the surface. The surface roughening process is existing technology and will not be elaborated here. Similarly, a friction layer can also be provided on the adjusting surface. The formation of the friction layer can be found in the relevant description of the friction layer on the limiting surface, and will not be elaborated here.

[0028] In this implementation, by increasing the static friction coefficient between the limiting surface and the adjusting surface, the static friction force between the limiting surface and the adjusting surface is improved, making the contact relationship between the limiting surface and the adjusting surface more stable. When the stop part is subjected to the force of the first swing arm and the second swing arm, the limiting surface and the adjusting surface of the stop part are not easy to lose contact, thereby improving the reliability of the stop.

[0029] In some possible implementations, the limiting member includes a first fixing part, a second fixing part, and a third fixing part, with the third fixing part connected between the first fixing part and the second fixing part, and the third fixing part fixedly connected to the main shaft. The folding assembly also includes a first rotating shaft and a second rotating shaft mounted on the main shaft, with the first rotating shaft inserted into the first end of the first swing arm and the first fixing part, and the second rotating shaft inserted into the first end of the second swing arm and the second fixing part.

[0030] In this implementation, since the limiting member is fixed to the main shaft, and the first and second rotating shafts are installed on the main shaft, the first rotating shaft is simultaneously inserted into the first fixed part and the first end of the first swing arm, and the second rotating shaft is simultaneously inserted into the second fixed part and the first end of the second swing arm. Therefore, when the first swing arm and the second swing arm rotate relative to each other, the rotation action is stable and not easy to shake, which is beneficial to improving the reliability of the folding assembly.

[0031] In some possible implementations, the first fixing part is also engaged with the first end of the first swing arm, and the second fixing part is also engaged with the first end of the second swing arm, which helps to further improve the stability of the rotational movements of the first and second swing arms.

[0032] In some possible implementations, the limiting surface includes a first part and a second part that are coplanar, with the first part of the limiting surface located in the first fixed part and the second part of the limiting surface located in the second fixed part.

[0033] In this implementation, since the first part of the limiting surface is located at the first fixing part of the limiting member, and the first fixing part is sleeved on the first rotating shaft, and the second part of the limiting surface is located at the second fixing part of the limiting member, and the second fixing part is sleeved on the second rotating shaft, the positions of the first part and the second part of the limiting surface are relatively stable when the limiting surface is subjected to force. The limiting surface and the limiting member as a whole are not easily deformed, and the structure has high stability. The limiting member can better limit the stop member, thereby reinforcing the stop member and improving the stopping reliability of the stop member.

[0034] In some possible implementations, the first stop part has a first adjustment hole, the second stop part has a second adjustment hole, the first rotating shaft passes through the first adjustment hole, the second rotating shaft passes through the second adjustment hole, and both the first adjustment hole and the second adjustment hole are rectangular holes or oblong holes, and their length direction is parallel to the thickness direction of the main shaft.

[0035] In this implementation, since the first rotating shaft passes through the first adjusting hole of the first stop part of the stop member and the second rotating shaft passes through the second adjusting hole of the second stop part of the stop member, the first rotating shaft and the second rotating shaft can limit the stop member to a certain extent. The position of the stop member is relatively stable and the risk of deformation is small, thereby improving the reliability of the stop.

[0036] In some possible implementations, the first stop portion abuts against the first fixing portion, and the second stop portion abuts against the second fixing portion.

[0037] In this implementation, since the first rotating shaft also passes through the first adjusting hole of the first stopping part of the stop member, and the first stopping part of the stop member abuts against the first fixing part of the limiting member, and the second rotating shaft also passes through the second adjusting hole of the second stopping part of the stop member, and the second stopping part of the stop member abuts against the second fixing part of the limiting member, the positions of the first stopping part and the second stopping part of the stop member are relatively stable and the risk of deformation is small, thereby improving the stopping reliability.

[0038] In some possible implementations, for example, the adjusting surface includes a coplanar first part and a second part. The first part of the adjusting surface is located at the first stop portion, and a first adjusting hole penetrates through the first part of the adjusting surface. The second part of the adjusting surface is located at the second stop portion, and a second adjusting hole penetrates through the second part of the adjusting surface. The two parts of the limiting surface and the two parts of the adjusting surface are in one-to-one contact with each other. Therefore, the contact area between the adjusting surface and the limiting surface is large, and the abutment relationship is stable. The limiting member can better limit the stop member to ensure the stability of the relative positional relationship between the stop member and the spindle.

[0039] In some possible implementations, the first stop surface and the second stop surface are symmetrical structures.

[0040] In this implementation, the first and second stop surfaces are symmetrical about a plane, which can be parallel to the thickness direction of the spindle. When the first and second swing arms are unfolded to their open state, the first stop end face of the first swing arm abuts against the first stop surface, while the second stop end face of the second swing arm abuts against the second stop surface. This makes the stopping process of the first and second swing arms easier to control, resulting in a better stopping effect. Furthermore, the symmetry between the first and second stop surfaces also helps reduce the machining difficulty of the stopping components. The first and second stop end faces of the first and second swing arms can be symmetrical or substantially symmetrical structures.

[0041] In some possible implementations, the folding assembly also includes a damping assembly connected to the first end of the first swing arm and the first end of the second swing arm, for providing damping force during the relative movement of the first swing arm and the second swing arm.

[0042] For example, the first end of the first swing arm includes a plurality of first protrusions and a plurality of second protrusions arranged opposite to each other, and the first end of the second swing arm also includes a plurality of first protrusions and a plurality of second protrusions arranged opposite to each other. The damping assembly includes a first locking member, a second locking member, and a first elastic member. The first locking member is provided with a plurality of first protrusion groups, and the second locking member is provided with a plurality of second protrusion groups. The plurality of first protrusion groups and the plurality of second protrusion groups are arranged in a one-to-one correspondence. The first end of the first swing arm and the first end of the second swing arm are both located between the first locking member and the second locking member. The first elastic member is located on the side of the second locking member facing away from the first locking member or on the side of the first locking member facing away from the second locking member. The first elastic member is used to generate elastic force so that the first end of the first swing arm and the first end of the second swing arm both abut against the first locking member and the second locking member. The plurality of first protrusions of the first swing arm cooperate with one of the first protrusion groups to form a locking structure. The plurality of second protrusions of the first swing arm cooperate with one of the second protrusion groups to form a locking structure. The plurality of first protrusions of the second swing arm cooperate with another first protrusion group to form a locking structure. The plurality of second protrusions of the second swing arm cooperate with another second protrusion group to form a locking structure.

[0043] In some possible implementations, a synchronization component connects the first end of the first swing arm and the first end of the second swing arm to keep the movements of the first and second swing arms synchronized, for example, by rotating synchronously toward each other to achieve folding, or by rotating synchronously toward each other to achieve unfolding.

[0044] Secondly, this application also provides a folding device, which includes a first housing, a second housing, and a folding assembly of any one of the above. A first fixing frame of the folding assembly is fixedly connected to the first housing, and a second fixing frame is fixedly connected to the second housing.

[0045] Thirdly, this application also provides an electronic device, including a flexible display screen and the aforementioned folding device. The portion of the flexible display screen corresponding to the first housing is fixed to the first housing, and the portion of the flexible display screen corresponding to the second housing is fixed to the second housing. During the process of the first housing and the second housing unfolding or folding relative to each other, the portion of the flexible display screen corresponding to the folding assembly deforms.

[0046] In this implementation, the flexible display screen can unfold or fold along with the folding device. When the electronic device is in the open state, the flexible display screen is in a flattened state, enabling full-screen display and providing a larger display area to improve the user's viewing and operating experience. When the electronic device is in the closed state, its small size makes it easy for users to carry and store. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the structure of an electronic device in the open state according to an embodiment of this application;

[0048] Figure 2 yes Figure 1 The diagram shows the structure of the electronic device in an intermediate state.

[0049] Figure 3 yes Figure 1 The diagram shows the structure of the electronic device when it is in a closed state.

[0050] Figure 4 yes Figure 1 A partially exploded structural diagram of the electronic device shown.

[0051] Figure 5 yes Figure 4 A partially exploded structural diagram of the folding component shown.

[0052] Figure 6 yes Figure 5 A partially exploded structural diagram of the folding component shown.

[0053] Figure 7 yes Figure 6 The diagram shows the structure of the bottom connecting component.

[0054] Figure 8 yes Figure 7 A partially exploded structural diagram of the bottom connecting component is shown.

[0055] Figure 9 yes Figure 5 The diagram shows the connection structure between the bottom connecting component and the spindle from another angle.

[0056] Figure 10 yes Figure 6 The diagram shows the connection structure between the bottom connecting component and the main inner shaft.

[0057] Figure 11 yes Figure 8 The diagram shows the structure of the adjustable rotation mechanism in some embodiments.

[0058] Figure 12 yes Figure 11 An exploded view of part of the adjustable rotation mechanism shown.

[0059] Figure 13 yes Figure 11 An exploded view of another part of the adjustable rotation mechanism shown.

[0060] Figure 14 yes Figure 12 The diagram shows the structure of the first and second swing arms.

[0061] Figure 15A yes Figure 12The diagram shows the structure of the limiting component.

[0062] Figure 15B yes Figure 15A A schematic diagram of the limiting component shown from another angle;

[0063] Figure 16A yes Figure 12 The diagram shows the structure of the stop component.

[0064] Figure 16B yes Figure 16A A schematic diagram of the stop component shown at another angle;

[0065] Figure 17 yes Figure 11 The diagram shows the cross-sectional structure of the adjustable rotating mechanism after being cut along point AA.

[0066] Figure 18 yes Figure 11 The diagram shows the cross-sectional structure of the adjustable rotating mechanism after being cut along point BB.

[0067] Figure 19 yes Figure 11 The diagram shows a cross-sectional view of the adjustable rotating mechanism after it has been cut along point CC.

[0068] Figure 20 yes Figure 11 The diagram shows a cross-sectional view of the adjustable rotating mechanism after it has been cut along point DD.

[0069] Figure 21A yes Figure 6 The diagram shows a partial structural schematic of the main inner shaft in some embodiments.

[0070] Figure 21B yes Figure 21A A schematic diagram of the main inner shaft at another angle;

[0071] Figure 22 yes Figure 11 The adjustable rotating mechanism shown is Figure 21A A schematic diagram of the assembly structure of the main inner shaft shown;

[0072] Figure 23A yes Figure 22 A schematic diagram of the cross-sectional structure shown, cut along EE.

[0073] Figure 23B yes Figure 23A A partial structural diagram of the structure shown;

[0074] Figure 24 yes Figure 22 A schematic diagram of the assembly structure of the limiting component and the stop component shown.

[0075] Figure 25 yes Figure 22 A schematic diagram of the cross-sectional structure shown, cut along FF.

[0076] Figure 26 yes Figure 22 A schematic diagram of the cross-sectional structure shown, cut along point GG;

[0077] Figure 27 yes Figure 22 A schematic diagram of the cross-sectional structure shown, cut along point HH.

[0078] Figure 28 yes Figure 22 A partial structural diagram of the stop component during the position adjustment process;

[0079] Figure 29 yes Figure 22 The diagram shows the structure of the stop and limit member in some other embodiments. Detailed Implementation

[0080] The following embodiments of this application will be described in conjunction with the accompanying drawings.

[0081] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. "Multiple" refers to two or more. "Installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" means that they are connected to each other and their relative positional relationship remains unchanged after connection. "Rotary connection" means that they are connected to each other and can rotate relative to each other after connection. "Sliding connection" means that they are connected to each other and can slide relative to each other after connection. The directional terms mentioned in the embodiments of this application, such as "up," "down," "left," "right," "inner," and "outer," are only for reference to the direction of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly specifying the number of technical features. Therefore, a feature marked "first" or "second" may explicitly or implicitly include one or more of that feature. "One-piece molded structural component" refers to a structural component in which one part is connected to the other parts of the structural component during the formation of one portion, without requiring further processing (such as bonding, welding, snap-fitting, etc.) to connect them.

[0082] This application provides an electronic device including a folding device and a flexible display screen fixed to the folding device. The folding device includes a folding assembly and two housings. The folding assembly can be unfolded to an open state, folded to a closed state, or in an intermediate state between the open and closed states. The flexible display screen unfolds and folds with the folding device. The folding assembly can precisely control the angle between the two housings in the open state through an adjustable rotation mechanism, so that the angle between the two housings is adapted to the design dimensions of the flexible display screen. This helps to reduce the risk of damage to the flexible display screen due to the pulling of the folding device, improves the reliability of the flexible display screen, and also enhances the user's visual experience.

[0083] The electronic device can be a foldable electronic product such as a mobile phone, tablet computer, laptop computer, or wearable device. Wearable devices can be smartwatches, smart bracelets, etc. This application uses a mobile phone as an example for illustration.

[0084] Please refer to the following: Figures 1 to 3 , Figure 1This is a schematic diagram of the structure of an electronic device 100 in the open state according to an embodiment of this application. Figure 2 yes Figure 1 The diagram shows the structure of the electronic device 100 in its intermediate state. Figure 3 yes Figure 1 The diagram shows the structure of the electronic device 100 when it is in a closed state.

[0085] In some embodiments, the electronic device 100 may include a folding device 10 and a flexible display screen 20, the flexible display screen 20 being mounted on the folding device 10. The flexible display screen 20 is used to display images. Figure 1 As shown, the folding device 10 can be unfolded to an open state; as Figure 3 As shown, the folding device 10 can also be folded into a closed state; as Figure 2 As shown, the folding device 10 can also be unfolded or folded to an intermediate state, which can be any state between the open and closed states. The flexible display screen 20 moves with the folding device 10, and under the drive of the folding device 10, the flexible display screen 20 can also be unfolded or folded, so that the entire electronic device 100 is unfolded to the open state or folded to the closed state. In this embodiment, when the electronic device 100 is in the closed state, the flexible display screen 20 is located inside the folding device 10, and the electronic device 100 is a folding device with the screen folded inward. It can be understood that in some other embodiments, when the electronic device 100 is in the closed state, the flexible display screen 20 can also be located outside the folding device 10.

[0086] The folding device 10 may include a first housing 1, a second housing 2, and a folding assembly 3. The folding assembly 3 connects the first housing 1 and the second housing 2. Through the movement of the folding assembly 3, the first housing 1 and the second housing 2 can be relatively unfolded to an open state or relatively folded to a closed state. Figure 1 As shown, the first housing 1 and the second housing 2 can be unfolded relative to each other to an open state, so that the folding assembly 3, the folding device 10, and the electronic device 100 are all in an open state, and the flexible display screen 20 unfolds along with the folding device 10. For example, when the folding device 10 is in the open state, the angle between the first housing 1 and the second housing 2 can be 180°, and the flexible display screen 20 is in a flattened state. Figure 3As shown, the first housing 1 and the second housing 2 can be folded relative to each other to a closed state, so that the folding assembly 3, the folding device 10, and the electronic device 100 are all in a closed state, and the flexible display screen 20 folds along with the folding device 10. For example, when the folding device 10 is in the closed state, the flexible display screen 20 can be located between the first housing 1 and the second housing 2, that is, the flexible display screen 20 can be located inside the folding device 10 and wrapped by the folding device 10. It can be understood that when the first housing 1 and the second housing 2 are in the closed state, the included angle between the first housing 1 and the second housing 2 can be approximately 0°. Figure 2 As shown, the first housing 1 and the second housing 2 can also be unfolded or folded relative to each other to an intermediate state, so that the folding assembly 3, the folding device 10, and the electronic device 100 are all in an intermediate state. The intermediate state can be any state between the open state and the closed state, and the flexible display screen 20 will also change accordingly.

[0087] In this embodiment, the flexible display screen 20 can be unfolded or folded along with the folding device 10. When the electronic device 100 is in the open state, the flexible display screen 20 is in a flattened state, and the flexible display screen 20 can display in full screen, so that the electronic device 100 has a large display area, thereby improving the user's viewing and operating experience. When the electronic device 100 is in the closed state, the planar size of the electronic device 100 is small, making it easy for users to carry and store.

[0088] For example, Figure 1 As shown, when the folding device 10 is in the open state, the first housing 1 and the second housing 2 are joined together. It should be noted that the joining of the first housing 1 and the second housing 2 may include partial or complete mutual abutment between the first housing 1 and the second housing 2, or it may include a small gap between the first housing 1 and the second housing 2. In this embodiment, by joining the first housing 1 and the second housing 2, the relative unfolding angle of the first housing 1 and the second housing 2 can be limited to a certain extent, thus stopping the unfolding action of the folding device 10 and preventing over-folding of the electronic device 100 during unfolding. This ensures that the flexible display screen 20 is in a flattened state, allowing the user to have the maximum width. Simultaneously, it can also reduce the stress on the flexible display screen 20 and improve the reliability of both the flexible display screen 20 and the electronic device 100.

[0089] For example, Figure 3As shown, when the folding device 10 is in the closed state, the first housing 1 and the second housing 2 can be completely closed. It should be noted that when the first housing 1 and the second housing 2 are closed, it may include the first housing 1 and the second housing 2 partially or completely abutting against each other, or it may include a small gap between the first housing 1 and the second housing 2. In this embodiment, only the middle section of the first housing 1 and the second housing 2 has space to accommodate the flexible display screen 20, and there are no large gaps at the edges. This improves the aesthetics of the housing and the electronic device 100, and also prevents foreign objects from entering the closed electronic device 100, thus improving the reliability of the electronic device 100.

[0090] For example, such as Figure 2 As shown, when the folding device 10 is in the intermediate state, the first housing 1 and the second housing 2 form an angle. The intermediate state can be any state between the open state and the closed state to meet the user's viewing needs from different angles.

[0091] In some embodiments, the electronic device 100 may further include multiple components (not shown in the figures), which are mainly housed inside the first housing 1 and the second housing 2. Some components may also be at least partially mounted on the folding assembly 3. This application does not strictly limit this aspect. The multiple components of the electronic device 100 may include, but are not limited to, a processor, an internal processor, an external storage interface, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a communication module, a camera module, an audio module, a speaker, a receiver, a microphone, a headphone jack, a sensor module, a subscriber identification module (SIM) card interface, one or more rigid or flexible circuit boards, etc. The electronic device 100 may have more or fewer components than described above, may combine two or more components, or may have different component configurations. This application does not specifically limit the number, type, or location of the modules of the electronic device 100.

[0092] In some embodiments, the flexible display screen 20 may also integrate display and touch sensing functions. The display function of the flexible display screen 20 is used to display text, images, videos, etc., and the touch sensing function is used to detect user touch actions to achieve human-computer interaction. The flexible display screen 20 may be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini organic light-emitting diode (MOLED) display, a micro light-emitting diode (MLED) display, or a quantum dot light-emitting diode (QLED) display.

[0093] In this embodiment, as Figure 1 As shown, the flexible display screen 20 may include a first part 201, a second part 202, and a third part 203, arranged sequentially. The portion of the flexible display screen 20 corresponding to the first housing 1 is the first part 201, which can be fixed to the first housing 1; the portion of the flexible display screen 20 corresponding to the second housing 2 is the second part 202, which can be fixed to the second housing 2; and the portion of the flexible display screen 20 corresponding to the folding assembly 3 is the third part 203. During the relative unfolding or folding of the first housing 1 and the second housing 2, the first housing 1 drives the first part 201 to rotate, the second housing 2 drives the second part 202 to rotate, and the third part 203 deforms under the influence of the first part 201, the second part 202, and the folding device 10. When the flexible display screen 20 is in a flattened state, the first part 201, the third part 203, and the second part 202 are all located on the same plane. When the flexible display screen 20 is in a closed state, the first part 201 and the second part 202 are arranged opposite to each other. They can partially abut against each other, completely abut against each other, or have a small gap. The flexible display screen 20 is U-shaped as a whole.

[0094] It is understood that in this embodiment, the electronic device 100 is described as having a two-fold structure, that is, the electronic device 100 includes two shells that can be bent relative to each other. In some other embodiments, the electronic device 100 may also have a three-fold or more-fold structure, that is, the electronic device 100 may include three or more shells that are bent relative to each other, and any two adjacent shells are connected by the folding assembly 3. When the electronic device 100 has a three-fold or more-fold structure, the structure of the electronic device 100 can be adapted by referring to the description of the two structures in this embodiment, and this application will not repeat it here.

[0095] Please see Figure 4 , Figure 4 yes Figure 1 A partially exploded structural diagram of the electronic device 100 shown.

[0096] In some embodiments, the first housing 1 includes a support surface 11 for supporting the flexible display screen 20, and the second housing 2 includes a support surface 21 for supporting the flexible display screen 20. Exemplarily, a first portion 201 of the flexible display screen 20 can be bonded to the support surface 11 of the first housing 1 using an adhesive layer, and a second portion 202 of the flexible display screen 20 can be bonded to the support surface 21 of the second housing 2 using an adhesive layer. The adhesive layer used for bonding can be a continuous, continuous adhesive layer, a segmented adhesive layer, or an adhesive layer with hollowed-out areas. The specific design of the adhesive layer is not strictly limited in this embodiment.

[0097] It should be noted that, in this application, the included angle between the support surface 11 of the first housing 1 and the support surface 21 of the second housing 2 is the included angle between the first housing 1 and the second housing 2. When the electronic device 100 is in the open state, the included angle between the support surface 11 of the first housing 1 and the support surface 21 of the second housing 2 can be 180°. In the embodiments of this application, the specific shapes of the support surface 11 of the first housing 1 and the support surface 21 of the second housing 2 are not strictly limited. For example, the support surface 11 of the first housing 1 may have one or more notches, recesses, protrusions, etc., and the support surface 21 of the second housing 2 may have one or more notches, recesses, protrusions, etc.

[0098] The following is an example illustrating the implementation structure of folding component 3.

[0099] Please refer to the following: Figure 4 and Figure 5 , Figure 5 yes Figure 4 A partially exploded view of the folding component 3 shown.

[0100] In some embodiments, the folding assembly 3 may include a main shaft 31, a plurality of connecting components (32, 33, 34), a first support plate 35, and a second support plate 36.

[0101] For example, multiple connecting components (32, 33, 34) are all connected to the main shaft 31, and all of the connecting components (32, 33, 34) are capable of movement and can be unfolded or folded relative to the main shaft 31. The multiple connecting components (32, 33, 34) are also connected between the first housing 1 and the second housing 2 (see reference). Figure 4 When multiple connecting components (32, 33, 34) move relative to the main shaft 31, the first housing 1 and the second housing 2 also move to achieve relative movement between the first housing 1 and the second housing 2.

[0102] The first support plate 35 and the second support plate 36 are each connected to multiple connecting components (32, 33, 34). The first support plate 35 and the second support plate 36 can move with the multiple connecting components (32, 33, 34) to achieve relative unfolding and relative folding. When the first housing 1 and the second housing 2 are in the open state, the first support plate 35 and the second support plate 36 are located on opposite sides of the main shaft 31. The first support plate 35 includes a first support surface 351 facing the flexible display screen 20, and the second support plate 36 includes a second support surface 361 facing the flexible display screen 20. The main shaft 31 includes a main support surface 3111 facing the flexible display screen 20. The first support surface 351, the second support surface 361, and the main support surface 3111 of the main shaft 31 work together to support the third part 203 of the flexible display screen 20 in the open state, making the flexible display screen 20 more flat in the open state. Under user pressure and touch, the third part 203 of the flexible display screen 20 is less prone to denting, which helps improve the reliability of the flexible display screen 20.

[0103] In the embodiments of this application, such as Figure 5 As shown, the two ends near the main shaft 31 are defined as the top and the bottom, respectively. The main shaft 31 has an extension direction, a thickness direction and a width direction. The extension direction of the main shaft 31 is defined as the direction from the bottom of the main shaft 31 to the top of the main shaft 31. The thickness direction of the main shaft 31 is perpendicular to the extension direction of the main shaft 31 and perpendicular to the main support surface 3111 of the main shaft 31. The width direction of the main shaft 31 is perpendicular to the extension direction of the main shaft 31 and perpendicular to the thickness direction of the main shaft 31. Figure 5 For simplicity, the attached diagram uses "Extension Direction" to indicate the extension direction of the main shaft 31, "Thickness Direction" to indicate the thickness direction of the main shaft 31, and "Width Direction" to indicate the width direction of the main shaft 31.

[0104] Please refer to the following: Figure 5 and see Figure 6 , Figure 6 yes Figure 5 A partially exploded view of the folding component 3 shown.

[0105] For example, the folding assembly 3 may have three connecting components: a bottom connecting component 32, a middle connecting component 33, and a top connecting component 34. The bottom connecting component 32, the middle connecting component 33, and the top connecting component 34 are arranged at intervals along the extension direction of the main shaft 31. The coordinated movement of multiple connecting components (32, 33, 34) makes the movement of the first housing 1 and the second housing 2 more stable and reliable during relative unfolding or folding.

[0106] It is understood that in some other embodiments, the number of connecting components may be fewer or more, and the connecting components may also be split or merged. The structures of each connecting component may be the same or have slight differences, and this application does not impose strict limitations on this. The following description mainly uses the bottom connecting component 32 as an example, and the middle connecting component 33 and the top connecting component 34 can be designed with reference to the bottom connecting component 32.

[0107] In some embodiments, the main shaft 31 may include a main inner shaft 311 and multiple covers (312, 313, 314). The main inner shaft 311 may be a continuous structural member, with its extension direction corresponding to the extension direction of the main shaft 31. The multiple covers (312, 313, 314) are spaced apart along the extension direction of the main shaft 31 and are all fixedly connected to the main inner shaft 311. For example, the multiple covers (312, 313, 314) can be fixed to the main inner shaft 311 by multiple fasteners 315. The multiple fasteners 315 may be, but are not limited to, screws, bolts, rivets, etc. In this embodiment, the multiple covers (312, 313, 314) may include a bottom cover 312, a middle cover 313, and a top cover 314. The bottom cover 312 is located at the bottom of the main inner shaft 311, forming a bottom mounting space with the main inner shaft 311; the middle cover 313 is located at the middle of the main inner shaft 311, forming a middle mounting space with the main inner shaft 311; the top cover 314 is located at the top of the main inner shaft 311, forming a top mounting space with the main inner shaft 311. Multiple connecting components (32, 33, 34) are correspondingly installed in each mounting space. For example, in this embodiment, the bottom connecting component 32 is installed in the bottom mounting space, the middle connecting component 33 is installed in the middle mounting space, and the top connecting component 34 is installed in the top mounting space. It is understood that the number and structure of the multiple covers (312, 313, 314) correspond to the multiple connecting components (32, 33, 34).

[0108] For example, the bottom cover 312 can generally be a cover structure with a concave center and raised sides. The surface of the bottom cover 312 facing the main inner shaft 311 can be provided with multiple mating structures, which are used to mate with the main inner shaft 311 to form a bottom mounting space. These mating structures can include grooves, openings, protrusions, notches, etc. The middle cover 313 and the top cover 314 can be designed with reference to the bottom cover 312; however, this embodiment will not elaborate on the middle cover 313 and the top cover 314.

[0109] For example, the main inner shaft 311 forms a main support surface 3111 on the side facing away from the multiple covers (312, 313, 314). The main support surface 3111 can provide a relatively flat support environment in the open state. It can be understood that the main support surface 3111 of the main inner shaft 311 is also the main support surface 3111 of the main shaft 31. The main support surface 3111 can be a plane. The planar main support surface 3111 can directly provide a flat support environment for the third part 203 of the flexible display screen 20 in the open state. In some other embodiments, the main support surface 3111 can also be a curved surface or a multi-segment connected plane, and is used to support the third part 203 of the flexible display screen 20 of the electronic device 100 in different shapes in the open state. This application does not strictly limit this.

[0110] Please refer to the following: Figure 7 and Figure 8 , Figure 7 yes Figure 6 The diagram shows the structure of the bottom connecting component 32. Figure 8 yes Figure 7 The diagram shows a partially exploded view of the bottom connecting component 32. Figure 7 The bottom connecting component 32 is made of Figure 6 The bottom connecting component 32 shown is obtained after being flipped left and right.

[0111] In some embodiments, the bottom connecting assembly 32 may include a first fixing frame 321, a first swing arm 322, a first rotating arm 323, a second fixing frame 324, a second swing arm 325, a second rotating arm 326, a stop adjustment assembly 327, a synchronization assembly 328, and a damping assembly 329. The bottom connecting assembly 32 may also include multiple rotating shafts (340, 350, 360, 370) for inserting into other components of the bottom connecting assembly 32 to achieve connection between components. The first swing arm 322, the second swing arm 325, the stop adjustment assembly 327, the synchronization assembly 328, and the damping assembly 329 can be assembled into a modular adjustable rotation mechanism 310 to simplify the assembly process of the folding assembly 3 and the electronic device 100.

[0112] The first fixing frame 321 is used to fix and connect the first housing 1, and also to connect with multiple components of the bottom connecting assembly 32 and the first support plate 35. The first fixing frame 321 may include multiple mating structures, such as a structure mating with the first housing 1, a structure mating with the first swing arm 322, a structure mating with the first rotating arm 323, and a structure mating with the first support plate 35. For example, the first fixing frame 321 includes a first sliding part 3211 and a first rotating part 3212. The first sliding part 3211 may be provided with a sliding groove 3213, and the first rotating part 3212 may be provided with a rotating shaft hole 3214.

[0113] The second fixing frame 324 is used to fix the second housing 2 and also to connect with multiple components of the bottom connecting assembly 32 and the second support plate 36. The second fixing frame 324 may include multiple mating structures, such as a structure mating with the second housing 2, a structure mating with the second swing arm 325, a structure mating with the second rotating arm 326, and a structure mating with the second support plate 36. For example, the second fixing frame 324 includes a second sliding portion 3241 and a second rotating portion 3242. The second sliding portion 3241 may be provided with a sliding groove 3243, and the second rotating portion 3242 may be provided with a pivot hole 3244.

[0114] The first swing arm 322 may include a first end 3221 and a second end 3222. The first end 3221 of the first swing arm 322 may be a rotating end, and the second end 3222 of the first swing arm 322 may be a sliding end. The second end 3222 of the first swing arm 322 may be mounted on the first sliding part 3211 to slidably connect with the first fixed frame 321. The second end 3222 of the first swing arm 322 may include a slider, a slide plate, or a slide rail, etc., to cooperate with the groove 3213 of the first sliding part 3211 to achieve a sliding connection. In some other embodiments, the second end 3222 of the first swing arm 322 is provided with a groove, and the first sliding part 3211 is provided with a slider, a slide plate, or a slide rail, etc., and the second end 3222 of the first swing arm 322 and the first sliding part 3211 can still achieve a sliding connection. The embodiments of this application do not strictly limit the implementation structure of the sliding connection between the second end 3222 of the first swing arm 322 and the first sliding part 3211.

[0115] The second swing arm 325 may include a first end 3251 and a second end 3252. The first end 3251 of the second swing arm 325 may be a rotating end, and the second end 3252 of the second swing arm 325 may be a sliding end. The second end 3252 of the second swing arm 325 may be mounted on the second sliding part 3241 to slidably connect with the second fixed frame 324. The second end 3252 of the second swing arm 325 may include a slider, a slide plate, or a slide rail, etc., to cooperate with the groove 3243 of the second sliding part 3241 to achieve a sliding connection. In some other embodiments, the second end 3252 of the second swing arm 325 is provided with a groove, and the second sliding part 3241 is provided with a slider, a slide plate, or a slide rail, etc., and the second end 3252 of the second swing arm 325 and the second sliding part 3241 can still achieve a sliding connection. The embodiments of this application do not strictly limit the implementation structure of the sliding connection between the second end 3252 of the second swing arm 325 and the second sliding part 3241.

[0116] The stop adjustment component 327 is connected to the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325, and is used to stop the unfolded position of the first swing arm 322 and the second swing arm 325. The implementation structure of the stop adjustment component 327 will be described later through embodiments, and will not be elaborated here.

[0117] The synchronization component 328 connects the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325 to keep the movements of the first swing arm 322 and the second swing arm 325 synchronized, for example, by rotating synchronously towards each other to achieve folding, or by rotating synchronously away from each other to achieve unfolding. The implementation structure of the synchronization component 328 will be described later through embodiments and will not be elaborated here.

[0118] The damping component 329 connects the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325, and provides damping force during the relative movement of the first swing arm 322 and the second swing arm 325. The implementation structure of the damping component 329 will be described later through embodiments and will not be elaborated here.

[0119] The first rotating arm 323 may include a first end 3231 and a second end 3232. Both the first end 3231 and the second end 3232 of the first rotating arm 323 may be rotating ends. The first end 3231 of the first rotating arm 323 may include an arc-shaped arm. The second end 3232 of the first rotating arm 323 is rotatably connected to the first rotating part 3212, thereby rotatably connecting to the first fixed frame 321. For example, the second end 3232 of the first rotating arm 323 may be provided with a pivot hole 3232a, and a rotating shaft 340 is inserted into the pivot hole 3232a and the pivot hole 3214 of the first rotating part 3212.

[0120] The second rotating arm 326 may include a first end 3261 and a second end 3262. Both the first end 3261 and the second end 3262 of the second rotating arm 326 may be rotating ends. The first end 3261 of the second rotating arm 326 may include an arc-shaped arm. The second end 3262 of the second rotating arm 326 is rotatably connected to the second rotating part 3242, thereby rotatably connecting to the second fixed frame 324. For example, the second end 3262 of the second rotating arm 326 may be provided with a pivot hole 3262a, and a rotating shaft 350 is inserted into the pivot hole 3262a and the pivot hole 3244 of the second rotating part 3242.

[0121] Please refer to the following: Figure 7 , Figure 9 as well as Figure 10 , Figure 9 yes Figure 5 The diagram shows the connection structure between the bottom connecting component 32 and the main shaft 31 from another angle. Figure 10 yes Figure 6 The diagram shows the connection structure between the bottom connecting component 32 and the main inner shaft 311.

[0122] In some embodiments, the bottom connecting assembly 32 may be mounted on the spindle 31. Part of the structure of the bottom connecting assembly 32 may be located inside the spindle 31, for example, between the inner spindle 311 and the bottom cover 312, while another part of the structure of the bottom connecting assembly 32 may be located outside the spindle 31.

[0123] The first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325 are both installed inside the main shaft 31, while the second ends 3222 of the first swing arm 322 and the second ends 3252 of the second swing arm 325 are both located outside the main shaft 31. The first end 3221 of the first swing arm 322 is rotatably connected to the main shaft 31, and the first end 3251 of the second swing arm 325 is rotatably connected to the main shaft 31. The second swing arm 325 and the first swing arm 322 can rotate relative to the main shaft 31 to unfold or fold relative to each other. The stop adjustment assembly 327, the synchronization assembly 328, and the damping assembly 329 are all installed inside the main shaft 31.

[0124] For example, the first end 3231 of the first rotating arm 323 and the first end 3261 of the second rotating arm 326 are mounted inside the main shaft 31, while the second end 3232 of the first rotating arm 323 and the second end 3262 of the second rotating arm 326 are located outside the main shaft 31. The first end 3231 of the first rotating arm 323 is rotatably connected to the main shaft 31, and the second end 3262 of the second rotating arm 326 is rotatably connected to the main shaft 31. The first rotating arm 323 and the second rotating arm 326 can rotate relative to the main shaft 31 to unfold or fold relative to each other.

[0125] Specifically, the first end 3221 of the first swing arm 322 rotates relative to the main shaft 31 about a first rotation axis (not shown in the figure), the first end 3251 of the second swing arm 325 rotates relative to the main shaft 31 about a second rotation axis (not shown in the figure), the first end 3231 of the first rotating arm 323 rotates relative to the main shaft 31 about a third rotation axis (not shown in the figure), and the first end 3261 of the second rotating arm 326 rotates relative to the main shaft 31 about a fourth rotation axis (not shown in the figure). The first, second, third, and fourth rotation axes are all parallel to the extension direction of the main shaft 31 and do not coincide with each other.

[0126] In the electronic device 100, the first fixing frame 321 is fixedly connected to the first housing 1, and the second fixing frame 324 is fixedly connected to the second housing 2. When the first housing 1 and the second housing 2 are unfolded or folded relative to each other, the first fixing frame 321 moves with the first housing 1, and the second fixing frame 324 moves with the second housing 2. The first fixing frame 321 and the second fixing frame 324 rotate relative to each other, and the folding assembly 3 unfolds or folds.

[0127] The first swing arm 322 is rotatably connected to the main shaft 31 and slidably connected to the first fixed frame 321, forming a linkage-slider structure. The first rotating arm 323 is rotatably connected to the main shaft 31 and rotatably connected to the first fixed frame 321, forming a linkage structure. The second swing arm 325 is rotatably connected to the main shaft 31 and slidably connected to the second fixed frame 324, forming a linkage-slider structure. The second rotating arm 326 is rotatably connected to the main shaft 31 and rotatably connected to the second fixed frame 324, forming a linkage structure. The folding assembly 3 achieves the relative unfolding and relative folding process through the linkage-slider structure and the connecting structure. It has few components, simple matching relationships and matching positions, and the components are easy to manufacture and assemble, which is conducive to mass production. Furthermore, since the main shaft 31 is linked to the first fixed frame 321 through the first swing arm 322 and the first rotating arm 323, and linked to the second fixed frame 324 through the second swing arm 325 and the second rotating arm 326, the folding assembly 3 has better tensile and compressive strength.

[0128] When the first housing 1 and the second housing 2 rotate relative to each other to the open state, the first fixing bracket 321 and the second fixing bracket 324 will also rotate relative to each other to the open state. Consequently, the first swing arm 322 and the second swing arm 325 will also rotate relative to each other to the open state. At this time, the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325 will abut against the stop adjustment component 327. The stop adjustment component 327 is used to prevent the relative rotation angle between the first swing arm 322 and the second swing arm 325 from exceeding a preset value, thereby preventing the relative rotation angle between the first fixing bracket 321 and the second fixing bracket 324 from exceeding a preset value, and preventing the relative rotation angle between the first housing 1 and the second housing 2 from exceeding a preset value. Therefore, the stop adjustment component 327's stop on the first swing arm 322 and the second swing arm 325 can prevent the first housing 1 and the second housing 2 from over-folding when the electronic device 100 is in the open state, thereby preventing the flexible display screen 20 from being pulled by the first housing 1 and the second housing 2, improving the reliability of the flexible display screen 20 and increasing its service life. Furthermore, in this application, due to the stop effect of the stop adjustment component 327, the angle between the first housing 1 and the second housing 2 in the open state is equal to a preset value. For example, when the preset value is 180°, the folding device 10 can provide a flat support environment for the flexible display screen 20, resulting in good flatness of the flexible display screen 20, which is beneficial for optimizing the overall lighting and shadow of the electronic device 100.

[0129] In the foregoing embodiments, the synchronization component 328 is used to keep the movements of the first swing arm 322 and the second swing arm 325 synchronized, thereby keeping the movements of the first housing 1 and the second housing 2 synchronized, for example, rotating synchronously towards each other to achieve folding, or rotating synchronously away from each other to achieve unfolding, so as to improve the user experience.

[0130] In the aforementioned embodiments, the damping component 329 is mounted on the main shaft 31 and disposed between the first swing arm 322 and the second swing arm 325 to achieve the damping effect of the first swing arm 322 and the second swing arm 325, that is, to achieve the damping effect of the first housing 1 and the second housing 2 during the movement process, thereby providing a better feel for the electronic device 100 during the unfolding and folding processes, and improving the user experience. In some other embodiments, the number of damping components 329 may also be two, and they are respectively disposed at the sliding connection between the first fixing frame 321 and the second end 3222 of the first swing arm 322 and the sliding connection between the second fixing frame 324 and the second end 3252 of the second swing arm 325, thereby achieving the damping effect on the first swing arm 322 and the second swing arm 325.

[0131] In some other embodiments, the folding assembly 3 may not include the first and second rotating arms, but instead include a first connecting arm and a second connecting arm. The first end of the first connecting arm is rotatably connected to the main shaft, and the second end of the first connecting arm is slidably connected to the first fixed frame. The sliding direction of the second end of the first connecting arm relative to the first fixed frame intersects with the sliding direction of the second end of the first swing arm relative to the first fixed frame. The first end of the second connecting arm is rotatably connected to the main shaft, and the second end of the second connecting arm is slidably connected to the second fixed frame. The sliding direction of the second end of the second connecting arm relative to the second fixed frame intersects with the sliding direction of the second end of the second swing arm relative to the second fixed frame.

[0132] Please refer to it again. Figure 7 and Figure 8 The bottom connecting assembly 32 also includes multiple components connected to the first support plate 35 and the second support plate 36 (see...). Figure 5The structure or components that cooperate with the first support plate 35 are as follows: For example, the first fixing frame 321 may further include a third rotating part 3215 that cooperates with the first support plate 35, and the third rotating part 3215 is rotatably connected to the first support plate 35. For example, the third rotating part 3215 may include an arc-shaped groove to cooperate with an arc-shaped arm (not shown in the figure) on the first support plate 35 to form a virtual axis rotation connection structure. The rotating shaft 360 may be inserted into the middle of the first rotating arm 323 and cooperate with the first support plate 35. For example, the rotating shaft 360 may also be inserted into a sliding groove (not shown in the figure) of the first support plate 35, so that the first rotating arm 323 is slidably connected to the first support plate 35. For example, the second fixing frame 324 may further include a fourth rotating part 3245 that cooperates with the second support plate 36, and the fourth rotating part 3245 is rotatably connected to the second support plate 36. For example, the fourth rotating part 3245 may include an arc-shaped groove to cooperate with an arc-shaped arm (not shown in the figure) on the second support plate 36 to form a virtual axis rotation connection structure. The rotating shaft 370 can be inserted into the middle of the second rotating arm 326 and cooperate with the second support plate 36. For example, the rotating shaft 370 can also be inserted into the groove (not shown in the figure) of the second support plate 36, so that the second rotating arm 326 is slidably connected to the second support plate 36.

[0133] Please refer to the following: Figures 11 to 13 , Figure 11 yes Figure 8 The diagram shown is a structural schematic of the adjustable rotation mechanism 310 in some embodiments. Figure 12 yes Figure 11 An exploded view of part of the structure of the adjustable rotation mechanism 310 shown. Figure 13 yes Figure 11 An exploded view of another part of the adjustable rotation mechanism 310 shown. The adjustable rotation mechanism 310 in this embodiment includes all or most of the technical features of the adjustable rotation mechanism 310 described above. The following mainly describes the differences between the two, and the contents that are the same as each other will not be repeated.

[0134] In some embodiments, the adjustable rotation mechanism 310 includes a first swing arm 322, a second swing arm 325, a stop adjustment component 327, a synchronization component 328, and a damping component 329. The adjustable rotation mechanism 310 can be a modular structure. For ease of description later, the adjustable rotation mechanism 310 is defined to have a first direction X, a second direction Y, and a third direction Z. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the first direction X and the second direction Y. The first swing arm 322 and the second swing arm 325 are arranged in the second direction Y.

[0135] For example, the stop adjustment assembly 327 may include a stop member 3271, a first fastener (not shown in the figure), a first elastic member 3272, a second elastic member 3273, a limiting member 3274, and a second fastener (not shown in the figure). The synchronization assembly 328 may include multiple synchronization gears. This embodiment illustrates the use of two synchronization gears as an example, such as the synchronization assembly 328 including a first synchronization gear 3281 and a second synchronization gear 3282. It is understood that in some other embodiments, the number of synchronization gears may be more, such as three or more. The damping assembly 329 may include a first locking member 3291, a second locking member 3292, a third locking member 3293, a fourth locking member 3294, a first elastic member 3295, a second elastic member 3296, a first rotating shaft 3297, a second rotating shaft 3298, a third rotating shaft 3299, and a fourth rotating shaft 32910. The first rotating shaft 3297, the second rotating shaft 3298, the third rotating shaft 3299, and the fourth rotating shaft 32910 can be plugged into other structures of the adjustable rotating mechanism 310 to assemble into a modular structure.

[0136] Please see Figure 14 , Figure 14 yes Figure 12 The diagram shows the structure of the first swing arm 322 and the second swing arm 325.

[0137] In some embodiments, the first swing arm 322 includes a first end 3221 and a second end 3222. The first end 3221 of the first swing arm 322 is provided with a pivot hole 3221a, which passes through both ends of the first end 3221 of the first swing arm 322. The axial direction of the pivot hole 3221a of the first swing arm 322 can be parallel to a first direction X. The first end 3221 of the first swing arm 322 also has a structure for engaging a synchronization component 328 and a damping component 329. For example, the first end 3221 of the first swing arm 322 may include a plurality of first protrusions 3221b, a plurality of second protrusions 3221c, and a plurality of meshing teeth 3221d, with the plurality of first protrusions 3221b and the plurality of second protrusions 3221c disposed opposite to each other at both ends of the first end 3221 of the first swing arm 322. Multiple first protrusions 3221b are arranged in a ring and spaced apart from each other, surrounding the pivot hole 3221a of the first end 3221 of the first rocker arm 322; multiple second protrusions 3221c are arranged in a ring and spaced apart from each other, surrounding the pivot hole 3221a of the first end 3221 of the first rocker arm 322. Multiple meshing teeth 3221d can be located on the side of the first end 3221 of the first rocker arm 322. Specifically, the multiple meshing teeth 3221d can be close to the multiple first protrusions 3221b and away from the multiple second protrusions 3221c.

[0138] The first end 3221 of the first swing arm 322 may also be provided with a first clearance space 3221e, which may be located in the middle of the first end 3221 of the first swing arm 322. The first clearance space 3221e may be connected to the pivot hole 3221a, so that the middle of the first end 3221 of the first swing arm 322 is approximately C-shaped. The first swing arm 322 also includes a first stop end face 3221f, which forms one end face of the aforementioned C-shaped structure. The first swing arm 322 may also include a first clearance end face 3221g, which may form the other end face of the aforementioned C-shaped structure. In this case, both the first stop end face 3221f and the first clearance end face 3221g are part of the wall of the first clearance space 3221e.

[0139] The first swing arm 322 can be a one-piece molded structural component to achieve high structural strength. For example, the first swing arm 322 can be formed by metal injection molding or other processes; this application does not impose strict limitations on this.

[0140] For example, the second swing arm 325 may include a first end 3251 and a second end 3252. The first end 3251 of the second swing arm 325 is provided with a pivot hole 3251a, which passes through both ends of the first end 3251 of the second swing arm 325. The axial direction of the pivot hole 3251a of the second swing arm 325 may be parallel to a first direction X. The first end 3251 of the second swing arm 325 also has a structure for engaging a synchronization component 328 and a damping component 329. For example, the first end 3251 of the second swing arm 325 may include a plurality of first protrusions 3251b, a plurality of second protrusions 3251c, and a plurality of meshing teeth 3251d, with the plurality of first protrusions 3251b and the plurality of second protrusions 3251c disposed opposite to each other at both ends of the second swing arm 325. Multiple first protrusions 3251b are arranged in a ring and spaced apart from each other, surrounding the pivot hole 3251a of the first end 3251 of the second rocker arm 325; multiple second protrusions 3251c are arranged in a ring and spaced apart from each other, surrounding the pivot hole 3251a of the first end 3251 of the second rocker arm 325. Multiple meshing teeth 3251d can be located on the side of the first end 3251 of the second rocker arm 325. The multiple meshing teeth 3251d can be close to the multiple first protrusions 3251b and away from the multiple second protrusions 3251c.

[0141] For example, the first end 3251 of the second swing arm 325 may also be provided with a second clearance space 3251e, which is located in the middle of the first end 3251 of the second swing arm 325. The second clearance space 3251e can communicate with the pivot hole 3251a, so that the middle of the first end 3251 of the second swing arm 325 is approximately C-shaped. The second swing arm 325 also includes a second stop end face 3251f, which forms one end face of the aforementioned C-shaped structure. The second swing arm 325 may also include a second clearance end face 3251g, which can form the other end face of the aforementioned C-shaped structure. In this case, the second stop end face 3251f and the second clearance end face 3251g are both part of the wall of the second clearance space 3251e.

[0142] The second swing arm 325 can be a one-piece molded structural component to achieve high structural strength. For example, the second swing arm 325 can be formed using metal injection molding or other processes; this application does not impose strict limitations on this.

[0143] Please refer to the following: Figure 15A and Figure 15B , Figure 15A yes Figure 12 The diagram shows the structure of the limiting member 3274. Figure 15B yes Figure 15A The diagram shows the structure of the limiting member 3274 from another angle. Figure 15B yes Figure 15A The diagram shows the structure of the limiting member 3274 after it has been flipped left and right.

[0144] In some embodiments, the limiting member 3274 includes a first fixing part 3274a, a second fixing part 3274b, and a third fixing part 3274c that are fixed to each other, with the third fixing part 3274c connected between the first fixing part 3274a and the second fixing part 3274b. In this embodiment, component A is connected between component B and component C, meaning that component A is located between component B and component C and connects component B and component C. The first fixing part 3274a, the third fixing part 3274c, and the second fixing part 3274b can be arranged in the second direction Y. The limiting member 3274 can be an integrally formed structural component to have high structural strength. For example, the limiting member 3274 can be made of metal material and formed by metal injection molding or other processes. In other embodiments, the limiting member 3274 can also be made of plastic material and formed by injection molding or other processes.

[0145] The first fixing part 3274a has a first rotating shaft hole 3274d, and the second fixing part 3274b has a second rotating shaft hole 3274e. The axial direction of the second rotating shaft hole 3274e is parallel to the axial direction of the first rotating shaft hole 3274d. The first rotating shaft hole 3274d and the second rotating shaft hole 3274e are through holes, and the axial directions of both the first rotating shaft hole 3274d and the second rotating shaft hole 3274e are parallel to the first direction X.

[0146] The third fixing part 3274c may be provided with a third pivot hole 3274f, a fourth pivot hole 3274g, a first through hole 3274h, a first countersunk groove 3274i, and a first recess 3274j. The axial directions of the third pivot hole 3274f and the fourth pivot hole 3274g are parallel to the axial direction of the first pivot hole 3274d. The third pivot hole 3274f and the fourth pivot hole 3274g can be blind holes or through holes. The axial direction of the first through hole 3274h is perpendicular to the axial direction of the first pivot hole 3274d. The axial direction of the first through hole 3274h can be parallel to the third direction Z. The first countersunk groove 3274i connects to the first through hole 3274h, and the first countersunk groove 3274i and the first through hole 3274h are arranged in the third direction Z. The first groove 3274j is located on the side of the first through hole 3274h away from the third rotating shaft hole 3274f. The first groove 3274j is connected to the first through hole 3274h, and the extension direction of the first groove 3274j is parallel to the first direction X.

[0147] For example, the limiting member 3274 has a limiting surface 3274k, which is located on one side of the limiting member 3274. The limiting surface 3274k is inclined relative to the first direction X and relative to the third direction Z. The limiting surface 3274k may be positioned away from the first recess 3274i. The limiting surface 3274k may be a plane, parallel to the second direction Y. For example, the limiting surface 3274k includes a coplanar first portion 3274m and a second portion 3274n. The first portion 3274m is located in the first fixing part 3274a, and the first rotating shaft hole 3274d penetrates the first portion 3274m. The second portion 3274n is located in the second fixing part 3274b, and the second rotating shaft hole 3274e penetrates the second portion 3274n.

[0148] For example, a first recessed space 3274p is formed between the first fixing part 3274a and the third fixing part 3274c, and a second recessed space 3274q is formed between the third fixing part 3274c and the second fixing part 3274b.

[0149] Please refer to the following: Figure 16A and Figure 16B , Figure 16A yes Figure 12 The diagram shows the structure of the stop member 3271. Figure 16B yes Figure 16A The diagram shows the structure of the stop member 3271 from another angle. Figure 16B yes Figure 16A The diagram shows the structure of the stop member 3271 after it has been flipped left and right.

[0150] In some embodiments, the stop member 3271 includes a first stop portion 3271a, a second stop portion 3271b, and a mounting portion 3271c, with the first stop portion 3271a and the second stop portion 3271b respectively fixed to both sides of the mounting portion 3271c. The first stop portion 3271a, the mounting portion 3271c, and the second stop portion 3271b can be arranged in a second direction Y. The stop member 3271 can be an integrally molded structural component to have high structural strength. For example, the stop member 3271 can be made of metal and formed by metal injection molding or other processes. In other embodiments, the limiting member 3274 can also be made of plastic and formed by injection molding or other processes.

[0151] The mounting portion 3271c may include a second through hole 3271d, a second recessed groove 3271e, and a second groove 3271f. The second through hole 3271d may be an oblong hole, wherein its axial direction is parallel to a third direction Z, and its length direction is parallel to a first direction X. The oblong hole wall includes two oppositely arranged straight edges and two oppositely arranged arcuate edges. The length direction of the oblong hole is from one arcuate edge to the other, and its length direction is parallel to the straight edges. When a shaft is inserted into the second through hole 3271d, the shaft is inserted along the third direction Z, and the shaft can move relative to the mounting portion 3271c along the first direction X. The second recessed groove 3271e connects to the second through hole 3271d, and both are arranged along the third direction Z. The second groove 3271f connects to the second recessed groove 3271e.

[0152] The first stop portion 3271a has a first adjustment hole 3271g. The first adjustment hole 3271g can be an oblong hole, and its axial direction can be parallel to a first direction X, while its length direction can be parallel to a third direction Z. When a rotating shaft is inserted into the first adjustment hole 3271g, the shaft is inserted into the first adjustment hole 3271g along the first direction X, and the shaft can move relative to the first stop portion 3271a along the third direction Z.

[0153] The first stop portion 3271a has a first stop surface 3271h, which can be located on the side of the first stop portion 3271a away from the mounting portion 3271c. The first stop surface 3271h is not parallel to the third direction Z; that is, the first stop surface 3271h intersects the third direction Z. For example, the first stop surface 3271h can be a plane, perpendicular to the third direction Z, or form an angle with the third direction Z. In some other embodiments, the first stop surface 3271h can also be a curved surface; this application does not strictly limit this.

[0154] The second stop portion 3271b has a second adjustment hole 3271i. The second adjustment hole 3271i can be an oblong hole, and its axial direction can be parallel to the first direction X, while its length direction can be parallel to the third direction Z. When a rotating shaft is inserted into the second adjustment hole 3271i, the shaft is inserted into the second adjustment hole 3271i along the first direction X, and the shaft can move relative to the second stop portion 3271b along the third direction Z.

[0155] The second stop portion 3271b has a second stop surface 3271j, which can be located on the side of the second stop portion 3271b away from the mounting portion 3271c. The second stop surface 3271j is not parallel to the third direction Z; that is, the second stop surface 3271j intersects the third direction Z. For example, the second stop surface 3271j can be a plane, perpendicular to the third direction Z, or form an angle with the third direction Z. In some other embodiments, the second stop surface 3271j can also be a curved surface; this application does not strictly limit this.

[0156] For example, the stop member 3271 may have an adjustment surface 3271k, which is located on one side of the stop member 3271. The adjustment surface 3271k may be inclined relative to the first direction X and relative to the third direction Z. The adjustment surface 3271k may be positioned away from the second recess 3271e. The adjustment surface 3271k may be a plane, parallel to the second direction Y. For example, the adjustment surface 3271k includes a coplanar first portion 3271m and a second portion 3271n. The first portion 3271m is located in the first stop portion 3271a, and a first adjustment hole 3271g penetrates the first portion 3271m. The second portion 3271n is located in the second stop portion 3271b, and a second adjustment hole 3271i penetrates the second portion 3271n.

[0157] For example, a third recessed space 3271p is formed on the side of the mounting portion 3271c near the first stop portion 3271a, and a fourth recessed space 3271q is formed on the side of the mounting portion 3271c near the second stop portion 3271b. The bottom wall of the third recessed space 3271p forms the first clearance surface 3271r of the stop member 3271, and the bottom wall of the fourth recessed space 3271q forms the second clearance surface 3271s of the stop member 3271. The orientation of the first clearance surface 3271r and the second clearance surface 3271s of the stop member 3271 is the same as the orientation of the second sink 3271e.

[0158] In some embodiments, the first elastic element 3272 may be an elastic washer, and the elastic element may have a through hole. The elastic washer may be made of metal, such as a spring washer or a leaf spring; or it may be made of elastic rubber. In other embodiments, the first elastic element 3272 may include multiple stacked components. For example, the first elastic element 3272 may include stacked spring washers and flat washers, where the flat washers may be metal washers or rubber washers. In other embodiments, the first elastic element 3272 may also be a spring. The embodiments of this application do not strictly limit the specific implementation of the first elastic element 3272.

[0159] In some embodiments, the second elastic element 3273 may be a spring. In other embodiments, the second elastic element 3273 may also be an elastic rubber element or the like, and the embodiments of this application do not strictly limit this.

[0160] Please refer to it again. Figure 12 In some embodiments, the first synchronizing gear 3281 may include a gear and a rotating shaft, with the rotating shaft located in the middle of the gear and its two ends protruding from both sides of the gear. The gear and the rotating shaft can be fixedly connected; for example, the first synchronizing gear 3281 can be a one-piece molded component. Alternatively, the gear can also be rotatably connected to the rotating shaft. Similarly, the second synchronizing gear 3282 may also include a gear and a rotating shaft, with the rotating shaft located in the middle of the gear and its two ends protruding from both sides of the gear. The gear and the rotating shaft can also be fixedly connected; for example, the second synchronizing gear 3282 can be a one-piece molded component. Alternatively, the gear can also be rotatably connected to the rotating shaft.

[0161] In some embodiments, the first locking member 3291 may include a first locking plate 3291a and two first protrusion groups 3291b, the two first protrusion groups 3291b being protrudingly fixed to the same side of the first locking plate 3291a. The first locking plate 3291a may be generally plate-shaped. The first locking plate 3291a has two first holes 3291c and two rotating holes 3291d, the two rotating holes 3291d being located between the two first holes 3291c. The first holes 3291c are through holes, and the rotating holes 3291d can be through holes or blind holes. The two first protrusion groups 3291b are respectively disposed corresponding to the two first holes 3291c. Each first protrusion group 3291b may include multiple first protrusions, the multiple first protrusions being arranged in a ring and spaced apart from each other. The multiple first protrusions of the same first protrusion group 3291b are disposed around the corresponding first hole 3291c, and a first locking groove is formed between two adjacent first protrusions. The first locking component 3291 can be an integrally formed structural component to have high structural strength.

[0162] For example, the second locking member 3292 includes a main body 3292a and two second protrusion groups 3292b, which are protrudingly fixed to the same side of the main body 3292a. The main body 3292a may include two locking portions 3292c and a connecting portion 3292d connecting the two locking portions 3292c. The two locking portions 3292c are spaced apart from each other, and each locking portion 3292c has a second hole 3292e, which is a through hole. The two ends of the connecting portion 3292d are respectively connected to the two locking portions 3292c, and the middle of the connecting portion 3292d protrudes to one side to form a clearance space on the other side. The two second protrusion groups 3292b are respectively fixed to the two locking portions 3292c, and the two second protrusion groups 3292b are respectively disposed corresponding to the two second holes 3292e. Each second protrusion group 3292b may include multiple second protrusions arranged in a ring and spaced apart from each other. Multiple second protrusions in the same second protrusion group 3292b are arranged around corresponding second holes 3292e, and a second locking groove is formed between two adjacent second protrusions. The second locking member 3292 can be a one-piece molded structural component to have high structural strength. In other embodiments, the main body 3292a may also have other implementation structures, but the main body 3292a may at least include two spaced-apart second holes 3292e.

[0163] For example, the third locking member 3293 includes a first locking groove 3293a and a second locking groove 3293b spaced apart. The first locking groove 3293a and the second locking groove 3293b form an opening on one side of the third locking member 3293, allowing other components to be inserted into the first locking groove 3293a and the second locking groove 3293b through the opening. The third locking member 3293 may also include a third hole 3293c, which can be a blind hole or a through hole. The third locking member 3293 may be generally plate-shaped. The third locking member 3293 may be an integrally formed structural component to have high structural strength.

[0164] For example, the fourth locking member 3294 includes two spaced-apart fourth holes 3294a, which are through holes. The fourth locking member 3294 also includes a fifth hole 3294b, which can be a through hole or a blind hole. The fifth hole 3294b can be located between the two fourth holes 3294a. The fourth locking member 3294 can be generally plate-shaped. The fourth locking member 3294 can be a one-piece molded structural component to have high structural strength.

[0165] For example, the first elastic member 3295 may include two first springs 3295a. In some other embodiments, the first elastic member 3295 may also be made of an elastic material such as elastic rubber, which is not strictly limited in this application.

[0166] For example, the second elastic member 3296 may include three second springs 3296a. In some other embodiments, the second elastic member 3296 may also be made of an elastic material such as elastic rubber, which is not strictly limited in this application.

[0167] Please refer to it again. Figure 13For example, one end of the first rotating shaft 3297 is provided with a limiting flange 3297a, the outer diameter of which is larger than the outer diameter of the main body portion 3297b of the first rotating shaft 3297. The other end of the first rotating shaft 3297 is provided with a limiting groove 3297c, which is recessed relative to the outer surface of the main body portion 3297b of the first rotating shaft 3297, and the diameter of the bottom wall of the limiting groove 3297c is smaller than the outer diameter of the main body portion 3297b of the first rotating shaft 3297. Meanwhile, one end of the second rotating shaft 3298 is provided with a limiting flange 3298a, the outer diameter of which is larger than the outer diameter of the main body portion 3298b of the second rotating shaft 3298. The other end of the second rotating shaft 3298 is provided with a limiting groove 3298c, which is recessed relative to the outer surface of the main body portion 3298b of the second rotating shaft 3298. The diameter of the bottom wall of the limiting groove 3298c is smaller than the outer diameter of the main body portion 3298b of the second rotating shaft 3298. The third rotating shaft 3299 is provided with a limiting flange 3299a, the outer diameter of which is larger than the outer diameter of the main body portion 3299b of the third rotating shaft 3299.

[0168] like Figure 11 and Figure 12 As shown, in the adjustable rotation mechanism 310, the stop member 3271 and the limiting member 3274 are arranged in the first direction X, and both are located between the first swing arm 322 and the second swing arm 325. The adjusting surface 3271k of the stop member 3271 faces the limiting surface 3274k of the limiting member 3274. The third recessed space 3271p of the stop member 3271 can connect to the first recessed space 3274p of the limiting member 3274, forming a common clearance space for avoiding the first swing arm 322; the fourth recessed space 3271q of the stop member 3271 can connect to the second recessed space 3274q of the limiting member 3274, forming a common clearance space for avoiding the second swing arm 325.

[0169] The stop member 3271 and the limiting member 3274 are also engaged in the first clearance space 3221e of the first swing arm 322 to engage the first end 3221 of the first swing arm 322; the stop member 3271 and the limiting member 3274 are also engaged in the second clearance space 3251e of the second swing arm 325 to engage the first end 3251 of the second swing arm 325. The first elastic member 3272 is stacked on one side of the stop member 3271. The second elastic member 3273 is located on the side of the stop member 3271 facing away from the limiting member 3274.

[0170] The first synchronizing gear 3281 and the second synchronizing gear 3282 of the synchronizing assembly 328 mesh with each other, with the first synchronizing gear 3281 meshing with the first end 3221 of the first rocker arm 322, and the second synchronizing gear 3282 meshing with the first end 3251 of the second rocker arm 325. At this time, the first end 3221 of the first rocker arm 322 indirectly meshes with the first end 3251 of the second rocker arm 325 through the synchronizing assembly 328. The first synchronizing gear 3281 and the second synchronizing gear 3282 can be located on the side of the limiting member 3274 opposite to the stop member 3271.

[0171] The first locking member 3291 and the second locking member 3292 are spaced apart, and the plurality of first protrusion groups 3291b of the first locking member 3291 face the plurality of second protrusion groups 3292b of the second locking member 3292. The first end 3221 of the first swing arm 322, the first end 3251 of the second swing arm 325, the stop member 3271, the limiting member 3274, the first synchronous gear 3281 and the second synchronous gear 3282 are all located between the first locking member 3291 and the second locking member 3292. Specifically, the first protrusions 3221b of the first swing arm 322 are positioned facing the first locking member 3291, and the second protrusions 3221c of the first swing arm 322 are positioned facing the second locking member 3292. Similarly, the first protrusions 3221b of the second swing arm 325 are positioned facing the first locking member 3291, and the second protrusions 3221c of the second swing arm 325 are positioned facing the second locking member 3292. At this time, the first locking member 3291 is located on the side of the synchronization component 328 facing away from the limiting member 3274, and the second locking member 3292 is located on the side of the stop member 3271 facing away from the limiting member 3274.

[0172] For example, the third locking member 3293 is located on the side of the first locking member 3291 facing away from the second locking member 3292, the fourth locking member 3294 is located on the side of the second locking member 3292 facing away from the first locking member 3291, the first elastic member 3295 is located between the second locking member 3292 and the fourth locking member 3294, and the second elastic member 3296 is located on the side of the third locking member 3293 facing away from the first locking member 3291.

[0173] The first rotating shaft 3297, the second rotating shaft 3298, the third rotating shaft 3299, and the fourth rotating shaft 32910 are inserted into the aforementioned components to form a modular structure for the adjustable rotation mechanism 310. Specifically:

[0174] Please refer to the following: Figure 11 , Figure 12 as well as Figure 17 , Figure 17 yes Figure 11 The diagram shows the cross-sectional structure of the adjustable rotating mechanism 310 after being cut along point AA.

[0175] In some embodiments, the first pivot 3297 is sequentially connected to the fourth locking member 3294, the first elastic member 3295, the second locking member 3292, the first end 3221 of the first swing arm 322, the stop member 3271, the limit member 3274, the first locking member 3291, the third locking member 3293 and the second elastic member 3296. The first pivot 3297 passes through one of the fourth holes 3294a of the fourth locking member 3294, the inner space of one of the first springs 3295a of the first elastic member 3295, one of the second holes 3292e of the second locking member 3292, the pivot hole 3221a of the first end 3221 of the first swing arm 322, the first adjustment hole 3271g of the first stop part 3271a of the stop member 3271, the first pivot hole 3274d of the first fixing part 3274a of the limiting member 3274, one of the first holes 3291c of the first locking member 3291, the first slot 3293a of the third locking member 3293, and the inner space of one of the second springs 3296a of the second elastic member 3296.

[0176] The adjusting surface 3271k of the stop member 3271 faces the limiting surface 3274k of the limiting member 3274. The first portion 3271m of the adjusting surface 3271k faces the first portion 3274m of the limiting surface 3274k. Multiple first protrusions 3221b of the first end 3221 of the first swing arm 322 are corresponding to one of the first protrusion groups 3291b of the first locking member 3291, and multiple second protrusions 3221c of the first end 3221 of the first swing arm 322 are corresponding to one of the second protrusion groups 3292b of the second locking member 3292. The first fixing portion 3274a of the limiting member 3274 and the first stopping portion 3271a of the stop member 3271 are installed in the first clearance space 3221e of the first swing arm 322.

[0177] In this configuration, the first spring 3295a is in a compressed state, the limiting flange 3297a of the first rotating shaft 3297 is located on the side of the fourth locking member 3294 facing away from the second locking member 3292 and abuts against the fourth locking member 3294, and the third locking member 3293 is at least partially engaged in the limiting groove 3297c of the first rotating shaft 3297 and abuts against the side wall of the limiting groove 3297c of the first rotating shaft 3297. In this configuration, one end of the first spring 3295a abuts against the fourth locking member 3294, and the fourth locking member 3294 abuts against the limiting flange 3297a of the first rotating shaft 3297. Simultaneously, the other end of the first spring 3295a abuts against the second locking member 3292, the second locking member 3292 abuts against the first end 3221 of the first swing arm 322, the first end 3221 of the first swing arm 322 abuts against the first locking member 3291, the first locking member 3291 abuts against the third locking member 3293, and the third locking member 3293 abuts against the side wall of the limiting groove 3297c of the first rotating shaft 3297. The first spring 3295a is compressed and positioned between the second locking member 3292 and the fourth locking member 3294, causing the first locking member 3291 and the second locking member 3292 to tend to move closer to each other. At this time, both the first locking member 3291 and the second locking member 3292 abut against the first end 3221 of the first swing arm 322.

[0178] In some states, the plurality of first protrusions 3221b of the first swing arm 322 and the plurality of first protrusions of one of the first protrusion groups 3291b of the first locking member 3291 are arranged alternately to form a locking structure, and the plurality of first protrusions 3221b are correspondingly locked into the plurality of first locking grooves of the first protrusion group 3291b; the plurality of second protrusions 3221c of the first swing arm 322 and the plurality of second protrusions of one of the second protrusion groups 3292b of the second locking member 3292 are arranged alternately to form a locking structure, and the plurality of second protrusions 3221c are correspondingly locked into the plurality of second locking grooves of the second protrusion group 3292b.

[0179] Please see Figure 11 , Figure 12 as well as Figure 18 , Figure 18 yes Figure 11 The diagram shows the cross-sectional structure of the adjustable rotating mechanism 310 after being cut along BB.

[0180] In some embodiments, the second pivot 3298 is sequentially connected to the fourth locking member 3294, the first elastic member 3295, the second locking member 3292, the first end 3251 of the second swing arm 325, the stop member 3271, the limit member 3274, the first locking member 3291, the third locking member 3293 and the second elastic member 3296. The second pivot 3298 passes through another fourth hole 3294a of the fourth locking member 3294, the inner space of another first spring 3295a of the first elastic member 3295, another second hole 3292e of the second locking member 3292, the pivot hole 3251a of the first end 3251 of the second swing arm 325, the second adjustment hole 3271i of the second stop part 3271b of the stop member 3271, the second pivot hole 3274e of the second fixing part 3274b of the limiting member 3274, another first hole 3291c of the first locking member 3291, the second slot 3293b of the third locking member 3293, and the inner space of another second spring 3296a of the second elastic member 3296.

[0181] The second portion 3271n of the adjusting surface 3271k of the stop member 3271 faces the second portion 3274n of the limiting surface 3274k of the limiting member 3274. Multiple first protrusions 3251b of the first end 3251 of the second swing arm 325 are provided corresponding to another first protrusion group 3291b of the first locking member 3291, and multiple second protrusions 3251c of the first end 3251 of the second swing arm 325 are provided corresponding to another second protrusion group 3292b of the second locking member 3292. The second fixing portion 3274b of the limiting member 3274 and the second stopping portion 3271b of the stop member 3271 are installed in the second clearance space 3251e of the second swing arm 325.

[0182] In this configuration, the first spring 3295a is in a compressed state, the limiting flange 3298a of the second rotating shaft 3298 is located on the side of the fourth locking member 3294 facing away from the second locking member 3292 and abuts against the fourth locking member 3294, and the third locking member 3293 is at least partially engaged in the limiting groove 3298c of the second rotating shaft 3298 and abuts against the side wall of the limiting groove 3298c of the second rotating shaft 3298. In this configuration, one end of the first spring 3295a abuts against the fourth locking member 3294, and the fourth locking member 3294 abuts against the limiting flange 3298a of the second rotating shaft 3298. Simultaneously, the other end of the first spring 3295a abuts against the second locking member 3292, the second locking member 3292 abuts against the first end 3251 of the second swing arm 325, the first end 3251 of the second swing arm 325 abuts against the first locking member 3291, the first locking member 3291 abuts against the third locking member 3293, and the third locking member 3293 abuts against the side wall of the limiting groove 3298c of the second rotating shaft 3298. The first spring 3295a is compressed and positioned between the second locking member 3292 and the fourth locking member 3294, causing the first locking member 3291 and the second locking member 3292 to tend to move closer to each other. At this time, both the first locking member 3291 and the second locking member 3292 abut against the first end 3251 of the second swing arm 325.

[0183] In some states, the plurality of first protrusions 3221b of the second swing arm 325 and the plurality of first protrusions of another first protrusion group 3291b of the first locking member 3291 are arranged alternately to form a locking structure, and the plurality of first protrusions 3221b are correspondingly locked into the plurality of first locking grooves of the first protrusion group 3291b; the plurality of second protrusions 3221c of the second swing arm 325 and the plurality of second protrusions of another second protrusion group 3292b of the second locking member 3292 are arranged alternately to form a locking structure, and the plurality of second protrusions 3221c are correspondingly locked into the plurality of second locking grooves of the second protrusion group 3292b.

[0184] See also Figure 12 , Figure 17 as well as Figure 18In the adjustable rotation mechanism 310, the first elastic member 3295 is used to generate elastic force so that the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325 both abut against the first locking member 3291 and the second locking member 3292. The plurality of first protrusions 3221b of the first swing arm 322 cooperate with one of the first protrusion groups 3291b of the first locking member 3291 to form a locking structure. The plurality of second protrusions 3221c of the first swing arm 322 cooperate with one of the second protrusion groups 3292b of the second locking member 3292 to form a locking structure. The plurality of first protrusions 3221b of the second swing arm 325 cooperate with another first protrusion group 3291b of the first locking member 3291 to form a locking structure. The plurality of second protrusions 3221c of the second swing arm 325 cooperate with another second protrusion group 3292b of the second locking member 3292 to form a locking structure.

[0185] In this embodiment, the two first protrusion groups 3291b of the first locking member 3291 and the second protrusion group 3292b of the second locking member 3292 are correspondingly arranged. In the correspondingly arranged first protrusion group 3291b and second protrusion group 3292b, the positions of the first protrusion and the second protrusion can be directly opposite each other, and the positions of the first locking groove and the second locking groove can be directly opposite each other. In other embodiments, the positions of the first protrusion and the second protrusion can also be staggered or have other positional relationships. Those skilled in the art can adjust the positional relationships of the corresponding structural components according to design needs, and this application does not impose strict limitations on this.

[0186] Please refer to the following: Figure 12 and Figure 18 In some embodiments, the shaft of the first synchronizing gear 3281 is inserted into the limiting member 3274 and the first locking member 3291. For example, the shaft of the first synchronizing gear 3281 can be inserted into the third shaft hole 3274f of the limiting member 3274 and one of the rotating holes 3291d of the first locking member 3291, with the gear of the first synchronizing gear 3281 located between the limiting member 3274 and the first locking member 3291. At this time, the first synchronizing gear 3281 rotatably connects the limiting member 3274 and the first locking member 3291. The shaft of the second synchronizing gear 3282 is inserted into the limiting member 3274 and the first locking member 3291. For example, the shaft of the second synchronizing gear 3282 can be inserted into the fourth shaft hole 3274g of the limiting member 3274 and another rotating hole 3291d of the first locking member 3291, with the gear of the second synchronizing gear 3282 located between the limiting member 3274 and the first locking member 3291. At this time, the second synchronous gear 3282 rotates to connect the limiting member 3274 and the first locking member 3291.

[0187] Please refer to the following: Figure 11 , Figure 12 as well as Figure 19 , Figure 19 yes Figure 11 The diagram shows a cross-sectional view of the adjustable rotating mechanism 310 after it is cut along CC.

[0188] In some embodiments, the second groove 3271f of the stop member 3271 and the first groove 3274j of the limiting member 3274 are placed close to each other, are opposite to each other, and are connected. The stop member 3271 also has a third groove 3271t, which may be located in the mounting portion 3271c of the stop member 3271. The third groove 3271t is located on the side of the second recess 3271e facing away from the second groove 3271f. The first elastic member 3272 is installed in the second recess 3271e of the stop member 3271. The through hole of the first elastic member 3272 corresponds to the second through hole 3271d of the stop member 3271, and the two are connected.

[0189] In some embodiments, the third pivot 3299 is inserted into the fourth locking member 3294, the first elastic member 3272, and the stop member 3271. The third pivot 3299 may be located between the first pivot 3297 and the second pivot 3298. One end of the third pivot 3299 is inserted into the fifth hole 3294b of the fourth locking member 3294, the third pivot 3299 passes through the inner space of the second elastic member 3273, and the other end of the third pivot 3299 is inserted into the third groove 3271t of the stop member 3271. The second elastic member 3273 and the third pivot 3299 may be partially located in the clearance space of the second locking member 3292, allowing them to pass through the second locking member 3292.

[0190] In this embodiment, the limiting flange 3299a of the third rotating shaft 3299 is located on the side of the second elastic member 3273 facing away from the stop member 3271. The second elastic member 3273 is in a compressed state, with one end abutting against the limiting flange 3299a of the third rotating shaft 3299 and the other end abutting against the stop member 3271. In this embodiment, the elastic force of the second elastic member 3273 causes the stop member 3271 to tend to approach the limiting member 3274, allowing the adjusting surface 3271k of the stop member 3271 to abut relatively stably against the limiting surface 3274k of the limiting member 3274 (see reference). Figure 17 and Figure 18 ).

[0191] In some embodiments, the fourth pivot 32910 may be located between the first pivot 3297 and the second pivot 3298. The fourth pivot 32910 is inserted into the third locking member 3293 and the second elastic member 3296. For example, one end of the fourth pivot 32910 is inserted into the third hole 3293c of the third locking member 3293, and the fourth pivot 32910 also passes through the inner space of one of the second springs 3296a of the second elastic member 3296.

[0192] Please refer to the reference again. Figures 17 to 19 Under the action of the elastic force of the first elastic component 3295 and the structural cooperation of each component, the entire adjustable rotation mechanism 310 forms a relatively modular whole, and the first swing arm 322 and the second swing arm 325 can rotate relative to each other.

[0193] For example, when the first swing arm 322 and the second swing arm 325 rotate relative to each other, for the engaging structure between the plurality of first protrusions 3221b of the first end 3221 of the first swing arm 322 and the corresponding first protrusion group 3291b, the first protrusion 3221b will disengage from one of the first locking slots, cross one first protrusion, and engage in another adjacent first locking slot; for the engaging structure between the plurality of second protrusions 3221c of the first end 3221 of the first swing arm 322 and the corresponding second protrusion group 3292b, the second protrusion 3221c will disengage from one of the second locking slots, cross one second protrusion, and engage in another adjacent second locking slot. During this process, the first end 3221 of the first swing arm 322 will push the first locking member 3291 away from the limiting member 3274, and at the same time push the second locking member 3292 away from the stop member 3271. The first elastic member 3295 is compressed, generating a portion of damping force and pushing force. Similarly, when the first swing arm 322 and the second swing arm 325 rotate relative to each other, for the engaging structure between the plurality of first protrusions 3251b of the first end 3251 of the second swing arm 325 and the corresponding first protrusion group 3291b, the first protrusion 3251b will disengage from one of the first locking grooves, cross one first protrusion, and engage in the adjacent first locking groove; for the engaging structure between the plurality of second protrusions 3251c of the first end 3251 of the second swing arm 325 and the corresponding second protrusion group 3292b, the second protrusion 3251c will disengage from one of the second locking grooves, cross one second protrusion, and engage in the adjacent second locking groove. During this process, the first end 3251 of the second swing arm 325 will push the first locking member 3291 away from the limiting member 3274, and at the same time push the second locking member 3292 away from the stop member 3271. The first elastic member 3295 is compressed, generating another part of damping force and pushing force.

[0194] In some other embodiments, the damping assembly 329 may not include the third locking member 3293 and the fourth locking member 3294. For example, the damping assembly 329 includes a first locking member 3291, a second locking member 3292, and a first elastic member 3295. One end of the first elastic member 3295 facing away from the second locking member 3292 can abut against the second locking member 3292, and the other end directly abuts against the wall of the main inner shaft 311. In this case, the first elastic member 3295 can still be in a compressed state, and the damping assembly 329 can still provide damping force and driving force for the rotation of the first swing arm 322 and the second swing arm 325. It is understood that the damping assembly 329 can also have other implementation structures, and the embodiments of this application do not strictly limit the specific implementation structure of the damping assembly 329.

[0195] In some other embodiments, the first elastic member 3295 may also be located on the side of the first locking member 3291 facing away from the second locking member 3292. The elastic force generated by the first elastic member 3295 can also make the first locking member 3291 and the second locking member 3292 tend to move closer to each other. The first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325 both abut against the first locking member 3291 and the second locking member 3292, and form a corresponding locking structure (see the previous embodiments for details, which will not be repeated here). At this time, the structure and position of the multiple rotating shafts (340, 350, 360, 370), the third locking member 3293, and the fourth locking member 3294 of the adjustable rotating mechanism 310 can be adapted. For example, one end of the first elastic member 3295 can abut against the first locking member 3291, and the other end can abut against another locking member or the main shaft 31. The first elastic member 3295 can also be in a compressed state. This application does not strictly limit the specific structure of the relevant structural members.

[0196] For example, such as Figure 18 As shown, since the synchronizing component 328 meshes with the first end 3221 of the first swing arm 322 and the first end 3251 of the second swing arm 325, the first synchronizing gear 3281 and the second synchronizing gear 3282 rotate when the first swing arm 322 and the second swing arm 325 rotate relative to each other. In this embodiment, by providing the synchronizing component 328, it is beneficial to increase the synchronicity and stability when the first swing arm 322 and the second swing arm 325 rotate relative to each other. Of course, in some other embodiments, the adjustable rotation mechanism 310 may not have the synchronizing component 328. When the adjustable rotation mechanism 310 does not have the synchronizing component 328, the first end 3221 of the first swing arm 322 may not have the meshing teeth 3221d, and the first end 3251 of the second swing arm 325 may not have the meshing teeth 3221d. Those skilled in the art can select appropriate structural positions and spatial arrangements to achieve a gear structure for the synchronous rotation of the first housing 1 and the second housing 2 according to the structural design requirements.

[0197] Please see Figure 20 , Figure 20 yes Figure 11 The diagram shows a cross-sectional view of the adjustable rotating mechanism 310 after it is cut along DD.

[0198] In some embodiments, the first swing arm 322 and the second swing arm 325 can rotate relative to each other to unfold to an open state or fold to a closed state.

[0199] When the first swing arm 322 and the second swing arm 325 are in the open state, the first stop end face 3221f of the first swing arm 322 at least partially abuts against the first stop surface 3271h of the stop member 3271, and the first clearance end face 3221g of the first swing arm 322 and the first clearance surface 3271r of the stop member 3271 are spaced apart, with the included angle between them reaching its maximum value. The second stop end face 3251f of the second swing arm 325 at least partially abuts against the second stop surface 3271j of the stop member 3271, and the second clearance end face 3251g of the second swing arm 325 and the second clearance surface 3271s of the stop member 3271 are spaced apart, with the included angle between them reaching its maximum value.

[0200] During the folding process of the first swing arm 322 and the second swing arm 325, the second ends 3222 and 3252 of the first swing arm 322 and the second ends 3252 of the second swing arm 325 approach each other. The first swing arm 322 rotates counterclockwise, and the first stop end face 3221f of the first swing arm 322 moves away from the first stop surface 3271h of the stop member 3271, while the first clearance end face 3221g of the first swing arm 322 moves towards the first clearance surface 3271r of the stop member 3271. The first clearance end face 3221g of the first swing arm 322 can rotate into the third recessed space 3271p of the stop member 3271 and the first recessed space 3274p of the limiting member 3274 (see reference). Figure 12 The second swing arm 325 rotates clockwise, and the second stop end face 3251f of the second swing arm 325 moves away from the second stop end face 3271j of the stop member 3271. The second clearance end face 3251g of the second swing arm 325 moves towards the second clearance end face 3271s of the stop member 3271. The second clearance end face 3251g of the second swing arm 325 can rotate into the fourth recessed space 3271q of the stop member 3271 and the second recessed space 3274q of the limiting member 3274 (see reference). Figure 12 It should be noted that the rotation directions of the first swing arm 322 and the second swing arm 325 in the embodiments of this application are described according to the directions shown in the figure. In actual product use, the rotation directions of the two can also be interchanged.

[0201] When the first swing arm 322 and the second swing arm 325 are in the closed state, the included angle between the first stop end face 3221f of the first swing arm 322 and the first stop face 3271h of the stop member 3271 reaches its maximum value. Meanwhile, the included angle between the first clearance end face 3221g of the first swing arm 322 and the first clearance face 3271r of the stop member 3271 reaches its minimum value, allowing for a gap between them. The included angle between the second stop end face 3251f of the second swing arm 325 and the second stop face 3271j of the stop member 3271 reaches its maximum value. Meanwhile, the included angle between the second clearance end face 3251g of the second swing arm 325 and the second clearance face 3271s of the stop member 3271 reaches its minimum value, allowing for a gap between them.

[0202] During the relative unfolding of the first swing arm 322 and the second swing arm 325, the second ends 3222 and 3252 of the first swing arm 322 and the second ends 3252 of the second swing arm 325 move away from each other. The first swing arm 322 rotates clockwise, and the first stop end face 3221f of the first swing arm 322 moves towards the first stop surface 3271h of the stop member 3271, while the first clearance end face 3221g of the first swing arm 322 moves away from the first clearance surface 3271r of the stop member 3271. The first clearance end face 3221g of the first swing arm 322 rotates away from the third recessed space 3271p of the stop member 3271 and the first recessed space 3274p of the limiting member 3274 (see reference). Figure 12 The second swing arm 325 rotates counterclockwise, and the second stop end face 3251f of the second swing arm 325 moves toward the second stop end face 3271j of the stop member 3271. The second clearance end face 3251g of the second swing arm 325 moves away from the second clearance end face 3271s of the stop member 3271. The second clearance end face 3251g of the second swing arm 325 rotates away from the fourth recessed space 3271q of the stop member 3271 and the second recessed space 3274q of the limiting member 3274 (see reference). Figure 12 ).

[0203] In this embodiment of the application, by setting a stop-fit ​​structure between the first stop surface 3271h of the stop member 3271 and the first stop end surface 3221f of the first swing arm 322, and a stop-fit ​​structure between the second stop surface 3271j of the stop member 3271 and the second stop end surface 3251f of the second swing arm 325, the first swing arm 322 and the second swing arm 325 can be restricted from continuing to rotate relative to each other when the first swing arm 322 and the second swing arm 325 are relatively unfolded to the open state, so that the included angle between the first swing arm 322 and the second swing arm 325 can stay at a preset angle, thus avoiding the phenomenon of excessive rotation. Furthermore, by setting the relative positional relationship between the first clearance end face 3221g of the first swing arm 322 and the first clearance face 3271r of the stop member 3271, and the relative positional relationship between the second clearance end face 3251g of the second swing arm 325 and the second clearance face 3271s of the stop member 3271, interference between the first swing arm 322 and the second swing arm 325 and the stop member 3271 during movement can be prevented, ensuring the normal operation of the entire folding assembly 3 and the high stability of the folding assembly 3.

[0204] Please refer to the following: Figure 21A and Figure 21B , Figure 21A yes Figure 6 The diagram shows a partial structural schematic of the main inner shaft 311 in some embodiments. Figure 21B yes Figure 21A The diagram shows the structure of the inner main shaft 311 from another angle. The extension direction of the inner main shaft 311 is the same as the extension direction of the main shaft 31, the thickness direction of the inner main shaft 311 is the same as the thickness direction of the main shaft 31, and the width direction of the inner main shaft 311 is the same as the width direction of the main shaft 31. The following descriptions of the scheme are based on the orientation of the main shaft 31. Furthermore, Figure 21A For simplicity, the following figures use "Extension Direction" to indicate the extension direction of the main shaft 31, "Thickness Direction" to indicate the thickness direction of the main shaft 31, and "Width Direction" to indicate the width direction of the main shaft 31.

[0205] In some embodiments, the main inner shaft 311 has an installation space 3112, a first notch 3113, a second notch 3114, multiple mounting holes 3115, and multiple mounting grooves 3116. Multiple ribs 3117 may be provided on the bottom wall of the installation space 3112. These ribs 3117 divide the installation space 3112 into multiple areas and also serve as limiting structures, making the assembly structure of the structural components installed in the installation space 3112 and the main inner shaft 311 more stable. Each rib 3117 can be arranged in the extending direction of the main shaft 31, and the multiple ribs 3117 are spaced apart from each other in the width direction of the main shaft 31. The first notch 3113 and the second notch 3114 are spaced apart from each other in the width direction of the main shaft 31 and both communicate with the installation space 3112. The first notch 3113 and the second notch 3114 can be located on both sides of the main inner shaft 311, respectively. Multiple mounting holes 3115 are located on one side of the mounting space 3112 and communicate with the mounting space 3112. The axial direction of the mounting holes 3115 can be parallel to the extension direction of the spindle 31. The multiple mounting holes 3115 are spaced apart from each other in the width direction of the spindle 31, and the multiple mounting holes 3115 can be configured one-to-one with multiple areas of the mounting space 3112. Multiple mounting slots 3116 are located on the other side of the mounting space 3112 and communicate with the mounting space 3112. In this case, the multiple mounting holes 3115, the mounting space 3112, and the multiple mounting slots 3116 are arranged sequentially in the extension direction of the spindle 31. Among them, the multiple mounting slots 3116 are spaced apart from each other in the width direction of the spindle 31, and the multiple mounting slots 3116 can be configured one-to-one with multiple areas of the mounting space 3112.

[0206] For example, the main inner shaft 311 includes a first boss 311a, a second boss 311b, and a connecting boss 311c located between a first notch 3113 and a second notch 3114. The first boss 311a and the second boss 311b are arranged at intervals in the extending direction of the main shaft 31. The first boss 311a is provided with a first mounting hole 311d, and the second boss 311b is provided with a second mounting hole 311e. The connecting boss 311c is located between the first boss 311a and the second boss 311b, and the connecting boss 311c can extend along the extending direction of the main shaft 31. The connecting boss 311c can connect the first boss 311a and the second boss 311b to improve the overall structural strength of the first boss 311a, the connecting boss 311c, and the second boss 311b.

[0207] Please refer to the following: Figures 21A to 22 , Figure 22 yes Figure 11 The adjustable rotation mechanism 310 shown is Figure 21A The diagram shows the assembly structure of the main inner shaft 311.

[0208] In some embodiments, the adjustable rotation mechanism 310 can be mounted on the inner main shaft 311 of the main shaft 31 via its first fastener 3275 and second fastener 3276. In this case, all components of the adjustable rotation mechanism 310 are mounted on the main shaft 31. Most of the structure of the adjustable rotation mechanism 310 is located in the mounting space 3112 of the inner main shaft 311. The ends of some rotating shafts can be inserted into mounting holes 3115 and / or placed in mounting grooves 3116. The first swing arm 322 is provided corresponding to the first notch 3113, and the second swing arm 325 is provided corresponding to the second notch 3114. The first direction X of the adjustable rotation mechanism 310 is consistent with the extension direction of the main shaft 31, the second direction Y of the adjustable rotation mechanism 310 is consistent with the thickness direction of the main shaft 31, and the third direction Z of the adjustable rotation mechanism 310 is consistent with the thickness direction of the main shaft 31.

[0209] Please refer to the following: Figure 19 , Figure 23A as well as Figure 23B , Figure 23A yes Figure 22 The diagram shows a cross-sectional view of the structure taken along EE. Figure 23B yes Figure 23A A partial structural diagram of the structure shown.

[0210] In some embodiments, the limiting member 3274 is fixed to the main inner shaft 311 by a first fastener 3275, and the stop member 3271 is fixed to the main inner shaft 311 by a second fastener 3276. Specifically, the first boss 311a of the main inner shaft 311 may be at least partially located in the first through hole 3274h of the limiting member 3274, the second boss 311b may be at least partially located in the second countersunk groove 3271e of the stop member 3271, and the connecting boss 311c may be at least partially located in the first groove 3274j of the limiting member 3274 and the second groove 3271f of the stop member 3271. The multiple bosses of the main inner shaft 311 can pre-position the limiting member 3274 and the stop member 3271, and contribute to improving the structural stability after assembly.

[0211] In this design, one end of the first fastener 3275 is connected to the third fixing part 3274c of the limiting member 3274, and the other end is connected to the main inner shaft 311, so as to install the limiting member 3274 onto the main shaft 31. For example, the first fastener 3275 may include a limiting end 3275a and a connecting end 3275b fixed to one side of the limiting end 3275a. The connecting end 3275b of the first fastener 3275 extends into the first mounting hole 311d of the first boss 311a and is fixedly connected to the first boss 311a; the limiting end 3275a of the first fastener 3275 may be at least partially located in the first recess 3274i and abut against the bottom wall of the first recess 3274i, and the limiting end 3275a of the first fastener 3275 presses the limiting member 3274 onto the main inner shaft 311.

[0212] In this embodiment, the connecting end 3275b of the first fastener 3275 may be provided with an external thread (not shown in the figure), and the wall of the first mounting hole 311d may be formed with an internal thread (not shown in the figure). The connecting end 3275b of the first fastener 3275 is threadedly connected to the first boss 311a to achieve a fixed connection between the first fastener 3275 and the main inner shaft 311. In some other embodiments, the connecting end 3275b of the first fastener 3275 and the first boss 311a may also adopt other fixed connection methods such as snap-fit, and this application embodiment does not strictly limit this. In some other embodiments, the limiting member 3274 may not be provided with a first countersunk groove 3274i, and the limiting end 3275a of the first fastener 3275 abuts against the surface of the limiting member 3274 facing away from the first boss 311a.

[0213] The second fastener 3276 has one end connected to the mounting portion 3271c of the stop member 3271 and the other end threadedly connected to the main inner shaft 311 to install the stop member 3271 onto the main shaft 31. For example, the second fastener 3276 may include a limiting end 3276a and a connecting end 3276b fixed to one side of the limiting end 3276a. The connecting end 3276b of the second fastener 3276 extends into the second mounting hole 311e of the second boss 311b and is fixedly connected to the second boss 311b. The connecting end 3276b of the second fastener 3276 may have an external thread (not shown in the figure), and the hole wall of the second mounting hole 311e may have an internal thread (not shown in the figure). The connecting end 3276b of the second fastener 3276 is threadedly connected to the second boss 311b to achieve a fixed connection between the second fastener 3276 and the main inner shaft 311. In this embodiment, since the second fastener 3276 and the main inner shaft 311 are fixedly connected by a threaded connection, the relative position between the second fastener 3276 and the main inner shaft 311 is adjustable.

[0214] In this configuration, the limiting end 3276a of the second fastener 3276 is located on the side of the mounting portion 3271c of the stop member 3271 facing away from the second boss 311b. The first elastic member 3272 abuts against the mounting portion 3271c of the stop member 3271 and the main inner shaft 311. The limiting end 3276a of the second fastener 3276 and the first elastic member 3272 limit the mounting portion 3271c of the stop member 3271, so that the stop member 3271 is fixed relative to the main shaft 31.

[0215] In this embodiment, the first elastic member 3272 may be located in the second recess 3271e, and between the mounting portion 3271c of the stop member 3271 and the top surface of the second boss 311b. In other embodiments, the first elastic member 3272 may also be located outside the second recess 3271e, and may be located between the mounting portion 3271c of the stop member 3271 and other structures of the main inner shaft 311. This embodiment does not strictly limit this. In other embodiments, a recess may be provided on the side of the mounting portion 3271c of the stop member 3271 facing away from the main inner shaft 311, and the limiting end 3276a of the second fastener 3276 may be at least partially located in the recess.

[0216] For example, the two ends of the second elastic member 3273 respectively abut against the limiting flange 3299a of the third rotating shaft 3299 and the mounting portion 3271c of the stop member 3271. The end of the third rotating shaft 3299 away from the second elastic member 3273 is mounted in one of the mounting grooves 3116 of the main inner shaft 311. When the second elastic member 3273 is in a compressed state, the elastic force generated by the second elastic member 3273 allows the third rotating shaft 3299 to abut against the main inner shaft 311, and also causes the stop member 3271 to tend to move closer to the limiting member 3274, thereby causing the stop member 3271 to abut against the limiting member 3274. In some other embodiments, the third rotating shaft 3299 may not have a limiting flange 3299a. The end of the second elastic member 3273 away from the stop member 3271 may abut against the fourth locking member 3294 or against the main inner shaft 311. The second elastic member 3273 may also be in a compressed state to generate elastic force, so that the stop member 3271 abuts against the limiting member 3274.

[0217] Please refer to the following: Figure 23A and Figure 24 , Figure 24 yes Figure 22 The diagram shows the assembly structure of the limiting member 3274 and the stop member 3271.

[0218] In this embodiment, the first elastic element 3272 applies a first force F1 to the stop element 3271. The first force F1 is the elastic force of the first elastic element 3272, and the first force F1 is parallel to the thickness direction of the main shaft 31 and away from the main inner shaft 311. The limiting end 3276a of the second fastener 3276 applies a second force F2 to the stop element 3271. The second force F2 is parallel to the thickness direction of the main shaft 31 and towards the main inner shaft 311. The second elastic element 327... A third force F3 is applied to the stop member 3271. The third force F3 is the elastic force of the second elastic member 3273. The third force F3 is parallel to the extension direction of the main shaft 31 and toward the limiting member 3274. The limiting member 3274 applies a fourth force F4 to the stop member 3271. The fourth force F4 is the supporting force of the limiting member 3274 on the stop member 3271. The fourth force F4 is inclined relative to the extension direction of the main shaft 31 and relative to the thickness direction of the main shaft 31. In the electronic device 100, the stop member 3271 is limited by multiple structural members, and the stop member 3271 is fixed relative to the main inner shaft 311.

[0219] For example, the limiting surface 3274k is inclined relative to the thickness direction of the main shaft 31 and also inclined relative to the extension direction of the main shaft 31. At this time, the limiting surface 3274k limits the stop member 3271 in both the thickness direction and the extension direction of the main shaft 31. The third force F3 applied to the stop member 3271 by the limiting surface 3274k is also inclined relative to the thickness direction and the extension direction of the main shaft 31.

[0220] For example, the adjusting surface 3271k can be parallel to and in contact with the limiting surface 3274k. The adjusting surface 3271k and the contact surface are in surface contact. Therefore, the contact area between the adjusting surface 3271k and the limiting surface 3274k is large and the abutment relationship is stable. The limiting member 3274 can better limit the stop member 3271 to ensure the stability of the relative positional relationship between the stop member 3271 and the spindle 31.

[0221] Please refer to the following: Figure 23A , Figure 25 as well as Figure 26 , Figure 25 yes Figure 22 The diagram shows a cross-sectional view of the structure cut along point FF. Figure 26 yes Figure 22 The diagram shows a cross-sectional view of the structure cut along point GG.

[0222] In some embodiments, such as Figure 23AAs shown, one end of the fourth rotating shaft 32910 is installed in one of the mounting holes 3115 of the main inner shaft 311. The two ends of the second spring 3296a, which is sleeved in the second elastic member 3296 and connected to the fourth rotating shaft 32910, respectively abut against the main inner shaft 311 and the third locking member 3293. Figure 25 As shown, one end of the first rotating shaft 3297 is installed in another mounting hole 3115 of the main inner shaft 311, and the other end is installed in another mounting groove 3116 of the main inner shaft 311. The two ends of the second spring 3296a, which is sleeved in the second elastic member 3296 and connected to the first rotating shaft 3297, respectively abut against the main inner shaft 311 and the third locking member 3293. Figure 26 As shown, one end of the second rotating shaft 3298 is installed in another mounting hole 3115 of the main inner shaft 311, and the other end is installed in another mounting groove 3116 of the main inner shaft 311. The two ends of the second spring 3296a, which is sleeved in the second elastic member 3296 and connected to the second rotating shaft 3298, respectively abut against the main inner shaft 311 and the third locking member 3293.

[0223] Under the elastic force of the multiple second springs 3296a of the second elastic member 3296, the adjustable rotation mechanism 310 as a whole tends to move away from the mounting hole 3115 of the main inner shaft 311. The side of the adjustable rotation mechanism 310 away from the second elastic member 3296 abuts against the main inner shaft 311. For example, the end of the first rotating shaft 3297 away from the second elastic member 3296 and the end of the second rotating shaft 3298 away from the second elastic member 3296 can abut against the main inner shaft 311. The relative positional relationship between the adjustable rotation mechanism 310 as a whole and the main inner shaft 311 is relatively stable. Furthermore, since the limiting member 3274 is fixedly connected to the main inner shaft 311, under the elastic force of the second elastic member 3296, a friction surface is formed between the first end 3221 of the first swing arm 322 and the limiting member 3274, and a friction surface is formed between the first end 3251 of the second swing arm 325 and the limiting member 3274. When the first swing arm 322 and the second swing arm 325 rotate relative to each other, a friction torque will be generated at the friction surface, and a damping force will be generated, so that when the user rotates the first housing 1 and the second housing 2, the hand feel is stable and the user experience is good.

[0224] In some other embodiments, the adjustable rotation mechanism 310 may not include the second elastic member 3296. The adjustable rotation mechanism 310 can achieve a stable relative positional relationship with the main inner shaft 311 through other structures, or it can provide damping force when the first swing arm 322 and the second swing arm 325 rotate relative to each other through other structures. The embodiments of this application do not strictly limit this.

[0225] It is understood that the connection structure between the multiple rotating shafts (3297, 3298, 3299, 32910) of the adjustable rotating mechanism 310 and the main inner shaft 311 described above is an exemplary structure. The multiple rotating shafts (3297, 3298, 3299, 32910) and the main inner shaft 311 can also be connected through other means. This application embodiment does not strictly limit this.

[0226] For example, Figure 23A , Figure 25 and Figure 26 As shown, since the third fixing part 3274c of the limiting member 3274 is fixedly connected to the main inner shaft 311 through the first fastener 3275, the first rotating shaft 3297 is inserted into the first fixing part 3274a of the limiting member 3274 and one of the mounting holes 3115 of the main inner shaft 311, and the second rotating shaft 3298 is inserted into the second fixing part 3274b of the limiting member 3274 and the other mounting hole 3115 of the main inner shaft 311, the positions of the first rotating shaft 3297 and the second rotating shaft 3298 relative to the main inner shaft 311 in the thickness direction and the width direction of the main shaft 31 are fixed. Since the first pivot 3297 is also connected to the first end 3221 of the first swing arm 322, the first swing arm 322 can be rotatably connected to the main inner shaft 311 through the first pivot 3297, so as to rotatably connect to the main shaft 31; since the second pivot 3298 is also connected to the first end 3251 of the second swing arm 325, the second swing arm 325 can be rotatably connected to the main inner shaft 311 through the second pivot 3298, so as to rotatably connect to the main shaft 31.

[0227] In this embodiment, since the limiting member 3274 is fixed to the main inner shaft 311, and the first rotating shaft 3297 and the second rotating shaft 3298 are installed on the main inner shaft 311, the first rotating shaft 3297 is simultaneously inserted into the first fixing part 3274a and the first end 3221 of the first swing arm 322, and the second rotating shaft 3298 is simultaneously inserted into the second fixing part 3274b and the first end 3251 of the second swing arm 325. Therefore, when the first swing arm 322 and the second swing arm 325 rotate relative to each other, the rotation is stable and not easily shaken, which helps to improve the reliability of the folding assembly 3. In addition, the first fixing part 3274a is also engaged with the first end 3221 of the first swing arm 322, and the second fixing part 3274b is also engaged with the first end 3251 of the second swing arm 325, which helps to further improve the stability of the rotation of the first swing arm 322 and the second swing arm 325.

[0228] In addition, such as Figure 25 and Figure 26As shown, since the first rotating shaft 3297 also passes through the first adjusting hole 3271g of the first stopping part 3271a of the stopping member 3271, and the first stopping part 3271a of the stopping member 3271 abuts against the first fixing part 3274a of the limiting member 3274, and the second rotating shaft 3298 also passes through the second adjusting hole 3271i of the second stopping part 3271b of the stopping member 3271, and the second stopping part 3271b of the stopping member 3271 abuts against the second fixing part 3274b of the limiting member 3274, the positions of the first stopping part 3271a and the second stopping part 3271b of the stopping member 3271 are relatively stable and the risk of deformation is small, thereby improving the stopping reliability.

[0229] For example, Figure 25 and Figure 26 As shown, since the first part 3274m of the limiting surface 3274k is located at the first fixing part 3274a of the limiting member 3274, and the first fixing part 3274a is sleeved on the first rotating shaft 3297, and the second part 3274n of the limiting surface 3274k is located at the second fixing part 3274b of the limiting member 3274, and the second fixing part 3274b is sleeved on the second rotating shaft 3298, when the limiting surface 3274k is under force, the positions of the first part 3274m and the second part 3274n of the limiting surface 3274k are relatively stable, the limiting surface 3274k and the limiting member 3274 as a whole are not easily deformed, the structural stability is high, and the limiting member 3274 can better limit the stop member 3271, thereby reinforcing the stop member 3271 and improving the stopping reliability of the stop member 3271.

[0230] For example, Figure 25 As shown, the first portion 3274m of the limiting surface 3274k of the limiting member 3274 is inclined relative to the thickness direction of the main shaft 31 and also inclined relative to the extension direction of the main shaft 31. The first portion 3271m of the adjusting surface 3271k of the stop member 3271 abuts against the first portion 3274m of the limiting surface 3274k of the limiting member 3274. The first portion 3271m of the adjusting surface 3271k can be parallel to the first portion 3274m of the limiting surface 3274k, and there is surface contact between the first portion 3271m of the adjusting surface 3271k and the first portion 3274m of the limiting surface 3274k. Figure 26As shown, the second portion 3274n of the limiting surface 3274k is inclined relative to the thickness direction of the main shaft 31 and also inclined relative to the extension direction of the main shaft 31. The second portion 3271n of the adjusting surface 3271k of the stop member 3271 abuts against the second portion 3274n of the limiting surface 3274k of the limiting member 3274. The second portion 3271n of the adjusting surface 3271k can be parallel to the second portion 3274n of the limiting surface 3274k, and there is surface contact between the second portion 3271n of the adjusting surface 3271k and the second portion 3274n of the limiting surface 3274k.

[0231] In this embodiment, the adjusting surface 3271k is parallel to and contacts the limiting surface 3274k. The adjusting surface 3271k and the contact surface are in surface contact. The two parts of the limiting surface 3274k and the two parts of the adjusting surface 3271k are in one-to-one contact with each other. Therefore, the contact area between the adjusting surface 3271k and the limiting surface 3274k is large and the abutment relationship is stable. The limiting member 3274 can better limit the stop member 3271 to ensure the stability of the relative positional relationship between the stop member 3271 and the spindle 31.

[0232] Please see Figure 27 , Figure 27 yes Figure 22 The diagram shows a cross-sectional view of the structure cut along point HH.

[0233] In some embodiments, the first swing arm 322 is rotatably connected to the main inner shaft 311, and the second swing arm 325 is rotatably connected to the main inner shaft 311. When the first swing arm 322 and the second swing arm 325 are unfolded to the open state, the first stop end face 3221f of the first swing arm 322 at least partially abuts against the first stop face 3271h of the stop member 3271, and the second stop end face 3251f of the second swing arm 325 at least partially abuts against the second stop face 3271j of the stop member 3271. In the embodiments of this application, the first stop end face 3221f at least partially abuts against the first stop face 3271h, including the case where a portion of the first stop end face 3221f abuts against the first stop face 3271h, and also the case where the entire portion of the first stop end face 3221f abuts against the first stop face 3271h; the second stop end face 3251f at least partially abuts against the second stop face 3271j, including the case where a portion of the second stop end face 3251f abuts against the second stop face 3271j, and also the case where the entire portion of the second stop end face 3251f abuts against the second stop face 3271j.

[0234] In this embodiment, since the stop member 3271 is limited by multiple structural components and fixed relative to the main inner shaft 311, it can prevent the relative rotation angle between the first swing arm 322 and the second swing arm 325 from being too large, thereby preventing the relative rotation angle between the first fixed frame 321 and the second fixed frame 324 from being too large, and preventing the relative rotation angle between the first housing 1 and the second housing 2 from being too large. Therefore, the stop member 3271's positioning of the first swing arm 322 and the second swing arm 325 can prevent the first housing 1 and the second housing 2 from being over-folded when the electronic device 100 is in the open state, thereby avoiding the flexible display screen 20 being pulled by the first housing 1 and the second housing 2, improving the reliability of the flexible display screen 20, and increasing the service life of the flexible display screen 20.

[0235] Furthermore, due to the stopping effect of the stop member 3271, the angle between the first housing 1 and the second housing 2 in the open state can be equal to a preset value. For example, the preset value can be 180°. When the first housing 1 and the second housing 2 are in the open state, they maintain a flat shape. The folding device 10 can provide a flat support environment for the flexible display screen 20. The good flatness of the flexible display screen 20 is beneficial to optimizing the overall light and shadow of the electronic device 100.

[0236] Furthermore, by setting the first stop surface 3271h and the second stop surface 3271j on the same stop member 3271, and using the same stop member 3271 to stop the first swing arm 322 and the second swing arm 325, the number of stop members 3271 required for the folding assembly 3 can be effectively reduced, and the space occupied by the stop members 3271 inside the folding assembly 3 can be reduced, which is beneficial to reducing costs.

[0237] In this embodiment, combined with Figure 25 and Figure 26 Since the limiting member 3274 is fixed to the main inner shaft 311, the limiting member 3274 can limit the stop member 3271, thereby increasing the structural stability and rigidity of the stop member 3271 relative to the main inner shaft 311. The stop member 3271 can better stop the first swing arm 322 and the second swing arm 325, resulting in a better stopping effect and making the flattened state of the folding assembly 3 and the electronic device 100 more stable and reliable.

[0238] The first stop surface 3271h and the second stop surface 3271j can be symmetrical or substantially symmetrical structures. In this embodiment, the first stop surface 3271h and the second stop surface 3271j are symmetrical about a plane, which can be parallel to the thickness direction of the main shaft 31. When the first swing arm 322 and the second swing arm 325 are unfolded to the open state, the first stop end face 3221f of the first swing arm 322 abuts against the first stop surface 3271h, while the second stop end face 3251f of the second swing arm 325 abuts against the second stop surface 3271j. The stopping process of the stop member 3271 on the first swing arm 322 and the second swing arm 325 is easier to control, resulting in a better stopping effect. Furthermore, the symmetry between the first stop surface 3271h and the second stop surface 3271j also helps to reduce the machining difficulty of the stop member 3271. In this embodiment, the first stop end face 3221f of the first swing arm 322 and the second stop end face 3251f of the second swing arm 325 can be symmetrical or substantially symmetrical structures. It is understood that in this embodiment, "the surfaces are substantially symmetrical" means that the positions of the two surfaces are symmetrical, but differences in shape and area are allowed. In other embodiments, the first stop surface 3271h and the second stop surface 3271j may not be symmetrical structures, and the mating structure of the first stop surface 3271h with the first swing arm 322 may differ from the mating structure of the second stop surface 3271j with the second swing arm 325.

[0239] For example, a friction layer (not shown in the figure) is provided on the limiting surface 3274k and / or the adjusting surface 3271k. The friction layer is used to increase the static friction coefficient between the limiting surface 3274k and the adjusting surface 3271k. For example, a friction layer can be provided on the limiting surface 3274k. The friction layer can be fixed to the limiting surface 3274k by assembly. The friction layer can be made of a material with a high static friction coefficient, such as a frosted film or a film with textured surfaces. Alternatively, the friction layer can be formed on the surface of the limiting surface 3274k by roughening the surface. The surface roughening process is prior art and will not be described in detail here. Similarly, a friction layer can also be provided on the adjusting surface 3271k. The formation of the friction layer can be found in the relevant description of the friction layer on the limiting surface 3274k, and will not be described in detail here.

[0240] In this embodiment, by increasing the static friction coefficient between the limiting surface 3274k and the adjusting surface 3271k, the static friction force between the limiting surface 3274k and the adjusting surface 3271k is increased, making the contact relationship between the limiting surface 3274k and the adjusting surface 3271k more stable. When the stop member 3271 is subjected to the force of the first swing arm 322 and the second swing arm 325, the limiting surface 3274k and the adjusting surface 3271k of the stop member 3271 are less likely to lose contact, thereby improving the reliability of the stop.

[0241] It is understandable that during the parts preparation and assembly process of the folding device 10, slight deviations may occur due to equipment, processes, etc., resulting in insufficient precision of the assembled product. For example, there may be a deviation between the angles of the two housings in the open state and the preset value. In this embodiment, after the entire folding device 10 is assembled, the included angle between the first housing 1 and the second housing 2 in the open state can also be detected. If there is a deviation between the included angle between the first housing 1 and the second housing 2 and the preset value, the relative position of the stop member 3271 and the main inner shaft 311 can be adjusted, thereby adjusting the included angle between the first swing arm 322 and the second swing arm 325, and the included angle between the first fixing frame 321 and the second fixing frame 324, so that the angle between the first housing 1 and the second housing 2 can be adjusted to the preset value.

[0242] like Figure 27 As shown, since the connecting end 3276b of the second fastener 3276 is threadedly connected to the main inner shaft 311, the position of the second fastener 3276 relative to the main inner shaft 311 is adjustable. Therefore, the limiting end 3276a of the second fastener 3276 can move in the thickness direction of the main shaft 31. With the cooperation of the limiting end 3276a of the second fastener 3276 and the first elastic member 3272, the stop member 3271 can move in the thickness direction of the main shaft 31 along with the limiting end 3276a of the second fastener 3276, thereby adjusting the position.

[0243] In this device, the first stop surface 3271h and the second stop surface 3271j of the stop member 3271 are not parallel to the thickness direction of the main shaft 31. That is, the first stop surface 3271h and the second stop surface 3271j are both inclined relative to the thickness direction of the main shaft 31. When the stop member 3271 moves in the thickness direction of the main shaft 31, the first stop surface 3271h and the second stop surface 3271j also move in the thickness direction of the main shaft 31. When the first swing arm 322 and the second swing arm 325 are in the open state, the position of the first stop end surface 3221f of the first swing arm 322 changes with the first stop surface 3271h, and the position of the second stop end surface 3251f of the second swing arm 325 changes with the second stop surface 3271j. Thus, by adjusting the position of the stop member 3271, the size of the included angle between the first swing arm 322 and the second swing arm 325 can be adjusted.

[0244] For example, after the folding device 10 is assembled, if the included angle between the first housing 1 and the second housing 2 exceeds the preset value, that is, if the included angle between the first housing 1 and the second housing 2 is too large, and the included angle between the first swing arm 322 and the second swing arm 325 is also too large, then the second fastener 3276 can be further tightened, so that the limiting end 3276a of the second fastener 3276 moves toward the direction closer to the main inner shaft 311, the stop member 3271 moves toward the direction closer to the main inner shaft 311, and the first stop surface 3271h and the second stop surface 3271j move toward the direction closer to the main support surface 3111 of the main inner shaft 311. At this time, the included angle between the first swing arm 322 and the second swing arm 325 is reduced in the open state, so that the included angle between the first housing 1 and the second housing 2 is adjusted to the preset value. If the angle between the first housing 1 and the second housing 2 is less than a preset value, that is, if the angle between the first housing 1 and the second housing 2 is too small, and the angle between the first swing arm 322 and the second swing arm 325 is also too small, then the second fastener 3276 can be loosened slightly, so that the limiting end 3276a of the second fastener 3276 moves away from the main inner shaft 311, the stop member 3271 moves away from the main inner shaft 311, and the first stop surface 3271h and the second stop surface 3271j move away from the main support surface 3111 of the main inner shaft 311. At this time, the angle between the first swing arm 322 and the second swing arm 325 expands in the open state, so that the angle between the first housing 1 and the second housing 2 is adjusted to the preset value.

[0245] For example, the first stop surface 3271h and the second stop surface 3271j of the stop member 3271 can both be perpendicular to the thickness direction of the main shaft 31. Alternatively, the angle between the first stop surface 3271h and the thickness direction of the main shaft 31 is greater than or equal to 45°, for example, it can be in the range of 60° to 90°; the angle between the second stop surface 3271j and the thickness direction of the main shaft 31 is greater than or equal to 45°, for example, it can be in the range of 60° to 90°. In this case, as the first stop surface 3271h and the second stop surface 3271j move with the stop member 3271 in the thickness direction of the main shaft 31, the angle between the first swing arm 322 and the second swing arm 325 can be effectively adjusted by a small displacement.

[0246] In this application, as Figure 24 and Figure 27 As shown, since the limiting surface 3274k is inclined relative to the thickness direction of the main shaft 31 and also inclined relative to the extension direction of the main shaft 31, the stop member 3271 abuts against the limiting surface 3274k of the limiting member 3274 under the first force F1 of the first elastic member 3272 and the third force F3 of the second elastic member 3273. Therefore, the stop member 3271 is restricted by the limiting surface 3274k during the position adjustment process, and the stop member 3271 moves simultaneously in the thickness direction and the extension direction of the main shaft 31.

[0247] Please refer to the following: Figure 23B and Figure 28 , Figure 28 yes Figure 22 The diagram shows a partial structural representation of the stop member 3271 during the position adjustment process. Figure 28 In the middle, (a) corresponds to (c), and (b) corresponds to (d).

[0248] In this embodiment, during the position adjustment process of the stop member 3271: the first fastener 3275 keeps the limiting member 3274 fixed to the main inner shaft 311, and the position of the limiting member 3274 and the main inner shaft 311 is relatively fixed; the second fastener 3276 can rotate relative to the main inner shaft 311 (e.g., tighten or loosen), so that the limiting end 3276a of the second fastener 3276 moves in the thickness direction of the main shaft 31, and the stop member 3271 can move in the thickness direction and the extension direction of the main shaft 31 to perform position adjustment.

[0249] For example, the second through hole 3271d of the stop member 3271 has at least two stopping positions, which are arranged in the extending direction of the main shaft 31. The second fastener 3276 passes through one of the stopping positions. When the second fastener 3276 passes through the stopping position of the stop member 3271 and is threadedly connected to the main inner shaft 311, the stop member 3271 is stopped at a certain position relative to the main inner shaft 311, and the relative positional relationship between the two is stable and reliable. When the second fastener 3276 switches from one stopping position of the stop member 3271 to another stopping position, the stopping position of the stop member 3271 relative to the main inner shaft 311 changes, but the two remain relatively fixed after the change. For example, the second through hole 3271d has a first stopping position 3271v and a second stopping position 3271w, such as... Figure 28 As shown in (a), the second fastener 3276 passes through the first stop position 3271v and connects to the main inner shaft 311. The stop member 3271 stops at the first position, as shown in (a). Figure 28 As shown in (c), the stop member 3271 is fixed relative to the main inner shaft 311; as Figure 28 As shown in (b), the second fastener 3276 passes through the second stop position 3271w and connects to the main inner shaft 311. The stop member 3271 stops at the second position, as shown in (b). Figure 28 As shown in (d), the stop member 3271 is fixed relative to the main inner shaft 311. Figure 28 As shown by the arrow in (d), the displacement of the stop member 3271 in the thickness direction of the main shaft 31 is S1, and the displacement in the extension direction of the main shaft 31 is S2. The sum of displacements S1 and S2 is displacement S. The direction of displacement S is parallel to the limiting surface 3274k. The stop member 3271 moves from the first position to the second position through displacement S.

[0250] In some embodiments, the second through hole 3271d may also include a third stop position, that is, the second through hole 3271d may include three or more stop positions, and the stop member 3271 can stop at three or more positions to meet more adjustment needs.

[0251] exist Figure 28 In the illustrated embodiment, the second through hole 3271d is an oblong hole, and the length direction of the second through hole 3271d can be parallel to the extension direction of the main shaft 31, so that the second through hole 3271d has multiple stopping positions arranged in the extension direction of the main shaft 31. In this embodiment, by making the length direction of the second through hole 3271d parallel to the extension direction of the main shaft 31, the multiple stopping positions can be arranged along the extension direction of the main shaft 31, the stop member 3271 can be continuously adjusted in the extension direction of the main shaft 31, the first stop end face 3221f and the second stop end face 3251f can be continuously adjusted in the thickness direction of the main shaft 31, and the included angle between the first swing arm 322 and the second swing arm 325 can be continuously adjusted when in the open state. In addition, the two straight sides of the waist-shaped hole also have a guiding function. When adjusting the included angle between the first swing arm 322 and the second swing arm 325, the stop member 3271 is not prone to displacement in the width direction of the main shaft 31. The stop member 3271 will not squeeze the first rotating shaft 3297 or the second rotating shaft 3298. The relative positional relationship between the adjustable rotating mechanism 310 and the main shaft 31 in the width direction of the main shaft 31 is stable.

[0252] In some other embodiments, the second through hole 3271d may also be a rectangular hole, comprising two long sides and two short sides arranged opposite each other. The length direction of the second through hole 3271d is parallel to the extension direction of the main shaft 31, thereby having multiple stopping positions arranged in the extension direction of the main shaft 31. The length direction of the second through hole 3271d is from one of the short sides to the other, and the length direction of the second through hole 3271d is parallel to the long side. This application does not strictly limit the specific shape of the second through hole 3271d; the purpose of the second through hole 3271d is to provide multiple stopping positions arranged in the extension direction of the main shaft 31.

[0253] In some other embodiments, the mounting portion 3271c of the stop member 3271 may also include a plurality of second through holes 3271d, which are arranged in the extending direction of the spindle 31. The plurality of second through holes 3271d are spaced apart from each other or partially overlap, and each second through hole 3271d has a stopping position, so that the mounting portion 3271c of the stop member 3271 has a plurality of stopping positions arranged in the extending direction of the spindle 31, and the second fastener 3276 passes through one of the stopping positions. In this application, the folding assembly 3 can also achieve the adjustability of the stop member 3271 relative to the second fastener 3276 in the extending direction of the spindle 31 through other means, and the embodiments of this application are not strictly limited.

[0254] Please refer to the following: Figure 27 and Figure 29 , Figure 29 yes Figure 22 The diagram shows the structure of the stop member 3271 and the limiting member 3274 in some other embodiments.

[0255] In some other embodiments, the adjustable rotation mechanism 310 may not include the second elastic member 3273, and there may be static friction between the limiting surface 3274k of the limiting member 3274 and the stop member 3271, and there may be static friction between the stop member 3271 and the first elastic member 3272. For example, when the first swing arm 322 and the second swing arm 325 are in the open state: the first elastic member 3272 applies a first force F1 to the stop member 3271, the first force F1 being the elastic force of the first elastic member 3272, the first force F1 being parallel to the thickness direction of the main shaft 31 and away from the main inner shaft 311; the first swing arm 322 and the second swing arm 325 apply a fifth force F5 to the stop member 3271, the fifth force F5 being parallel to the thickness direction of the main shaft 31 and away from the main inner shaft 311; the limiting end 3276a of the second fastener 3276 applies a second force F2 to the stop member 3271, the second force F2 being parallel to the thickness direction of the main shaft 31 and towards the main inner shaft 311. Shaft 311; Limiting member 3274 applies a fourth force F4 and a sixth force F6 to stop member 3271. The fourth force F4 is the supporting force of limiting member 3274 on stop member 3271. The fourth force F4 is inclined relative to the extension direction of main shaft 31 and to the thickness direction of main shaft 31. The fourth force F4 is biased towards main inner shaft 311 and deviates from limiting member 3274. The sixth force F6 is the static friction force between the limiting surface 3274k of limiting member 3274 and stop member 3271. The sixth force F6 is inclined relative to the extension direction of main shaft 31 and to the thickness direction of main shaft 31. The seventh limiting member 3274 is biased towards main inner shaft 311 and biased towards limiting member 3274.

[0256] In this embodiment, the adjustable rotation mechanism 310 uses the static friction force (i.e., the sixth force F6) between the limiting member 3274 and the stop member 3271 to balance the component of the supporting force (i.e., the fourth force F4) of the limiting member 3274 on the stop member 3271 in the extension direction of the main shaft 31, so that the position of the stop member 3271 relative to the main inner shaft 311 is stable, and the stopping effect of the stop member 3271 on the first swing arm 322 and the second swing arm 325 is reliable.

[0257] When a friction layer is provided on the limiting surface 3274k and / or the adjusting surface 3271k, the static friction coefficient between the limiting surface 3274k of the limiting member 3274 and the adjusting surface 3271k of the stop member 3271 is relatively large, resulting in a larger static friction force between the limiting surface 3274k and the adjusting surface 3271k. This allows the limiting member 3274 to better limit the stop member 3271, and the stop member 3271 to provide a more reliable stopping effect on the first swing arm 322 and the second swing arm 325.

[0258] In some embodiments, the structure of the first elastic member 3272 can be designed such that, when the first swing arm 322 and the second swing arm 325 are in the open state, the first elastic member 3272 applies a seventh force F7 to the stop member 3271. The seventh force F7 is the static friction between the first elastic member 3272 and the stop member 3271, and the direction of the seventh force F7 is parallel to the extension direction of the main shaft 31 and toward the limiting member 3274. For example, the first elastic member 3272 is an elastic washer, or the first elastic member 3272 includes stacked spring washers and flat washers. In these embodiments, the abutment structure between the first elastic member 3272 and the stop member 3271, and the abutment structure with the main inner shaft 311, causes static friction to form between the first elastic member 3272 and the stop member 3271, and the first elastic member 3272 applies the seventh force F7 to the stop member 3271. In this embodiment, the seventh force F7 can cooperate with the sixth force F6 to better balance the component of the fourth force F4 in the extension direction of the main shaft 31, thereby improving the structural stability of the stop member 3271 and ensuring the stopping effect on the first swing arm 322 and the second swing arm 325.

[0259] It is understood that the embodiments of this application do not limit the magnitude relationship between the sixth force F6 and the seventh force F7. In the adjustable rotation mechanism 310, the sixth force F6 may exist alone, the seventh force F7 may exist alone, or both the sixth force F6 and the seventh force F7 may exist simultaneously, allowing for adaptive changes in the structure of the adjustable rotation mechanism 310.

[0260] It is understood that in the embodiments described above, the stop member 3271 is provided with an adjusting surface 3271k, which is parallel to and in contact with the limiting surface 3274k, so as to maximize the contact area between the adjusting surface 3271k and the limiting surface 3274k and stabilize the contact relationship between the stop member 3271 and the limiting surface 3274k. In some other embodiments, the adjusting surface 3271k may also be a curved surface or other surface shape, and the adjusting surface 3271k may not be parallel to the limiting surface 3274k; or, the stop member 3271 may not be provided with an adjusting surface 3271k, and the stop member 3271 may be provided with a support structure such as a protrusion or a bump, which supports the limiting surface 3274k.

[0261] In the preceding embodiments, the limiting surface 3274k of the limiting member 3274 includes a first part 3274m and a second part 3274n. In other embodiments, the limiting surface 3274k may only include the first part 3274m, or only include the second part 3274n, or, in addition to including the first part 3274m and the second part 3274n, may also include more parts (e.g., a third part), etc. This application does not strictly limit these aspects. The position of one or more parts included in the limiting surface 3274k can adopt the scheme of the preceding embodiments, or there may be other implementation schemes. This application does not strictly limit these aspects. Similarly, the stop member 3271 can be adapted, which will not be elaborated here.

[0262] It is understood that in some other embodiments, the adjustable rotation mechanism 310 may not have a limiting member 3274, and the adjustable rotation mechanism 310 may be fixed to the main shaft 31 by a stop member 3271. In this case, the structure of the entire folding assembly 3 is simpler, which is beneficial to the lightweighting of the folding assembly 3, simplifies the installation process of the folding assembly 3, and reduces the production cost of the folding assembly 3.

[0263] It is understood that in some other embodiments, the angle between the first swing arm 322 and the second swing arm 325 in the open state does not need to be adjusted. In this case, the first stop surface 3271h and the second stop surface 3271j can also be parallel to the thickness direction of the main shaft 31, and there can be only one stop position. Those skilled in the art can make corresponding adjustments to the mating structure of other structural components according to the structural design requirements.

[0264] It is understood that the preceding embodiments all use a mobile phone as an example for illustration. When the electronic device 100 is a foldable electronic product such as a tablet computer, laptop computer, or wearable device, and the folding device 10 is in the open state, the included angle between the first housing 1 and the second housing 2 can also be 120°, 150°, 170°, or other angles. That is, through the stopping action of the stop member 3271, when the first stop end face 3221f of the first swing arm 322 abuts against the first stop surface 3271h of the stop member 3271, and the first stop surface 3271h of the second swing arm 325 abuts against the second stop surface 3271j of the stop member 3271, the included angle between the first housing 1 and the second housing 2 in the open state can be 120°, 150°, 170°, or other angles, to prevent the flexible display screen 20 from over-folding. Furthermore, the positions of the first stop end face 3221f and the second stop end face 3251f can be adjusted by the second fastener 3276, thereby eliminating precision errors and part assembly errors.

[0265] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology 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 folding assembly, characterized in that, It includes a main shaft, a first fixed frame, a first swing arm, a second fixed frame, a second swing arm, a limiting component, a first fastener, a stop component, a second fastener, and a first elastic component; The first end of the first swing arm is rotatably connected to the 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 swing arm has a first stop end face. The first end of the second swing arm is rotatably connected to the main shaft, and the second end of the second swing arm is slidably connected to the second fixed frame. The first end of the second swing arm has a second stop end face. The limiting member is fixed to the main shaft by the first fastener. The limiting member has a limiting surface that is inclined relative to the thickness direction of the main shaft and to the extension direction of the main shaft. The extension direction of the main shaft is perpendicular to the thickness direction of the main shaft. The stop member includes a first stop part, a second stop part, and a mounting part. The first stop part and the second stop part are respectively fixed to both sides of the mounting part. One end of the second fastener is connected to the mounting part, and the other end is threaded to the spindle. The first elastic member abuts between the mounting part and the spindle, and the stop member abuts against the limiting surface. The first stop portion has a first stop surface, and the second stop portion has a second stop surface. Neither the first stop surface nor the second stop surface is parallel to the thickness direction of the main shaft. During the process of the first swing arm and the second swing arm being unfolded relative to each other, the first stop end face moves toward the first stop surface, and the second stop end face moves toward the second stop surface; when the first swing arm and the second swing arm are in the open state, the first stop end face and the first stop surface at least partially abut against each other, and the second stop end face and the second stop surface at least partially abut against each other.

2. The folding assembly according to claim 1, characterized in that, The mounting portion has a second through hole with at least two stops arranged in the extension direction of the spindle, and the second fastener passes through one of the stops.

3. The folding assembly according to claim 2, characterized in that, The second through hole is an oblong or rectangular hole, and the length direction of the second through hole is parallel to the extension direction of the main shaft.

4. The folding assembly according to claim 3, characterized in that, The folding assembly further includes a second elastic member, which is mounted on the main shaft and located on the side of the stop member opposite to the limiting member. The second elastic member abuts against the mounting portion, and the elastic force generated by the second elastic member causes the stop member to abut against the limiting surface.

5. The folding assembly according to any one of claims 1 to 4, characterized in that, The stop member has an adjustment surface that is parallel to and contacts the limiting surface.

6. The folding assembly according to claim 5, characterized in that, A friction layer is provided on the limiting surface and / or the adjusting surface, the friction layer being used to increase the static friction coefficient between the limiting surface and the adjusting surface.

7. The folding assembly according to any one of claims 1 to 4, characterized in that, The limiting member includes a first fixing part, a second fixing part, and a third fixing part. The third fixing part is connected between the first fixing part and the second fixing part, and the third fixing part is fixedly connected to the main shaft. The folding assembly further includes a first rotating shaft and a second rotating shaft mounted on the main shaft. The first rotating shaft is inserted into the first end of the first swing arm and the first fixing part, and the second rotating shaft is inserted into the first end of the second swing arm and the second fixing part.

8. The folding assembly according to claim 7, characterized in that, The limiting surface includes a first part and a second part that are coplanar, the first part of the limiting surface is located at the first fixing part, and the second part of the limiting surface is located at the second fixing part.

9. The folding assembly according to claim 7, characterized in that, The first stop portion has a first adjustment hole, and the second stop portion has a second adjustment hole. The first rotating shaft passes through the first adjustment hole, and the second rotating shaft passes through the second adjustment hole. Both the first adjustment hole and the second adjustment hole are rectangular holes or oblong holes, and their length direction is parallel to the thickness direction of the main shaft.

10. The folding assembly according to claim 8, characterized in that, The first stop portion has a first adjustment hole, and the second stop portion has a second adjustment hole. The first rotating shaft passes through the first adjustment hole, and the second rotating shaft passes through the second adjustment hole. Both the first adjustment hole and the second adjustment hole are rectangular holes or oblong holes, and their length direction is parallel to the thickness direction of the main shaft.

11. The folding assembly according to claim 9 or 10, characterized in that, The first stop portion abuts against the first fixing portion, and the second stop portion abuts against the second fixing portion.

12. The folding assembly according to any one of claims 1 to 4, characterized in that, The first stop surface and the second stop surface are symmetrical structures.

13. The folding assembly according to any one of claims 1 to 4, characterized in that, The first end of the first swing arm includes a plurality of first protrusions and a plurality of second protrusions arranged opposite to each other, and the first end of the second swing arm includes a plurality of first protrusions and a plurality of second protrusions arranged opposite to each other; The folding assembly further includes a damping assembly, which includes a first locking member, a second locking member, and a first elastic component. The first locking member is provided with a plurality of first protrusion groups, and the second locking member is provided with a plurality of second protrusion groups. The plurality of first protrusion groups and the plurality of second protrusion groups are arranged in a one-to-one correspondence. The first end of the first swing arm and the first end of the second swing arm are both located between the first locking member and the second locking member. The first elastic member is located on the side of the second locking member facing away from the first locking member or on the side of the first locking member facing away from the second locking member. The first elastic member is used to generate elastic force so that the first end of the first swing arm and the first end of the second swing arm both abut against the first locking member and the second locking member. The plurality of first protrusions of the first swing arm cooperate with one of the first protrusion groups to form a locking structure. The plurality of second protrusions of the first swing arm cooperate with one of the second protrusion groups to form a locking structure. The plurality of first protrusions of the second swing arm cooperate with another first protrusion group to form a locking structure. The plurality of second protrusions of the second swing arm cooperate with another second protrusion group to form a locking structure.

14. A folding device, characterized in that, The folding device includes a first housing, a second housing, and a folding assembly according to any one of claims 1 to 13, wherein a first fixing frame of the folding assembly is fixedly connected to the first housing, and a second fixing frame is fixedly connected to the second housing.

15. An electronic device, characterized in that, Includes a flexible display screen and the folding device as described in claim 14; The flexible display screen and the corresponding part of the first housing are fixed to the first housing, and the flexible display screen and the corresponding part of the second housing are fixed to the second housing. During the process of the first housing and the second housing being unfolded or folded relative to each other, the flexible display screen and the corresponding part of the folding component are deformed.

Images