Folding mechanism and electronic equipment

Abstract

The invention provides a folding mechanism and electronic equipment. The main shaft is located between the first fixing frame and the second fixing frame. The first supporting plate is rotationally connected with the main shaft. The third supporting plate is rotationally connected with the first supporting plate and the first fixing frame. The rotating end of the first connecting piece is rotationally connected with the spindle, the sliding end of the first connecting piece is slidably connected with the first fixing frame, and the connecting section of the first connecting piece is connected with the first supporting plate through a first rotating pair. The second supporting plate is rotationally connected with the main shaft; the fourth supporting plate is rotationally connected with the second supporting plate and the second fixing frame; the rotating end of the second connecting piece is rotationally connected with the spindle, the sliding end of the second connecting piece is slidably connected with the second fixing frame, and the connecting section of the second connecting piece is connected with the second supporting plate through a second rotating pair. The folding action of the folding mechanism on the flexible screen is stable, the extrusion force is small, the risk that the flexible screen is damaged due to excessive extrusion of the folding mechanism is reduced, and the reliability of the flexible screen is high.

Description

Technical Field

[0001] This application relates to the field of foldable electronic products technology, and in particular to a folding mechanism and electronic device. Background Technology

[0002] In recent years, flexible screens have been widely used in various foldable electronic devices due to their thinness, lightness, and durability. Foldable electronic devices also include a housing to support the flexible screen. This housing typically consists of two housings and a folding mechanism connecting them. The two housings fold or unfold relative to each other through the deformation of the folding mechanism, which in turn causes the flexible screen to fold or unfold. In traditional inward-folding electronic devices, the flexible screen folds inside the housing when the device is folded. The bent portion of the flexible screen is easily damaged by excessive pressure from the folding mechanism, resulting in poor reliability and a short lifespan. Summary of the Invention

[0003] This application provides a folding mechanism and an electronic device. The folding mechanism is applied in the housing of an electronic device to connect two housings of the housing. The housing is used to support a flexible screen. During the folding process of the housing, the folding mechanism can automatically avoid creating a accommodating space. The folding action of the housing on the flexible screen is stable and the compressive force is small, which helps to reduce the risk of damage to the flexible screen due to excessive compression by the folding mechanism, thus making the flexible screen more reliable.

[0004] In a first aspect, this application provides a folding mechanism. The folding mechanism includes a main shaft, a first fixed frame, a second fixed frame, a first support plate, a second support plate, a third support plate, a fourth support plate, a first connecting member, a second connecting member, a first rotating joint, and a second rotating joint, with the main shaft located between the first fixed frame and the second fixed frame;

[0005] The first support plate is rotatably connected to the main shaft, and the third support plate is rotatably connected to the first support plate and the first fixed frame.

[0006] The first connector includes a rotating end, a connecting section, and a sliding end connected in sequence. The rotating end of the first connector is rotatably connected to the main shaft, and the sliding end of the first connector is slidably connected to the first fixed frame. The connecting section of the first connector is connected to the first support plate through a first rotating pair.

[0007] The second support plate is rotatably connected to the main shaft, and the fourth support plate is rotatably connected to the second support plate and the second fixed frame.

[0008] The second connector includes a rotating end, a connecting section, and a sliding end connected in sequence. The rotating end of the second connector is rotatably connected to the main shaft, and the sliding end of the second connector is slidably connected to the second fixed frame. The connecting section of the second connector is connected to the second support plate through a second rotating pair.

[0009] It is understandable that the folding mechanism can be a crank-slider-connecting rod motion mechanism. The main motion of the folding mechanism can consist of a primary motion and a secondary motion. The primary motion can be the motion of a four-bar linkage consisting of a main shaft, a first support plate, a first connecting member, and a first revolute joint. The secondary motion can be the motion of a slider-connecting rod motion mechanism consisting of a first fixed frame, a third support plate, a first support plate, and a first revolute joint. Through the primary and secondary motions, the folding mechanism can ensure that the first fixed frame has one degree of freedom relative to the main shaft during the unfolding or folding process, thus determining its motion trajectory relative to the main shaft. Specifically, during the unfolding or folding process, the motion of the first support plate, the third support plate, the first connecting member, and the first revolute joint can constrain the motion trajectory of the first fixed frame, ensuring its determination relative to the main shaft. Thus, during the transition from a flattened state to a folded state, the first support plate, the third support plate, the first connecting member, and the first revolute joint can pull the first fixed frame back closer to the main shaft. During the process of the folding mechanism changing from the folded state to the flattened state, the first support plate, the third support plate, the first connector, and the first rotating pair can push the first fixed frame away from the main shaft.

[0010] Similarly, by setting a second support plate rotatably connected to the main shaft, a fourth support plate rotatably connected to the second support plate, and the fourth support plate rotatably connected to the second fixed frame, the rotating end of the second connecting member rotatably connects to the main shaft, and the sliding end of the second connecting member slidably connects to the second fixed frame. The second support plate is also rotatably connected to the second connecting member through a second revolute joint. In this case, the motion of the four-bar linkage consisting of the main shaft, the second support plate, the second connecting member, and the second revolute joint can also form the first-level motion of the folding mechanism. The motion of the slider linkage consisting of the second support plate, the fourth support plate, the second fixed frame, and the second revolute joint can also form the second-level motion of the folding mechanism. In this case, the folding mechanism can achieve both first-level and second-level motions, so that during the unfolding or folding process of the folding mechanism, the degree of freedom of the second fixed frame relative to the main shaft can be 1, and the motion trajectory of the second fixed frame relative to the main shaft can be determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism, the second support plate, the fourth support plate, the second connecting member, and the second revolute joint can pull the second fixed frame back closer to the main shaft. During the process of the folding mechanism changing from the folded state to the flattened state, the second support plate, the fourth support plate, the second connector, and the second rotating pair can push the second fixed frame away from the main shaft.

[0011] In one possible implementation, when the folding mechanism is in a flattened state, the third support plate, the first support plate, the second support plate, and the fourth support plate are sequentially spliced ​​together to form a support surface.

[0012] When the folding mechanism is in the folded state, the first support plate and the second support plate are positioned opposite each other, and the third support plate and the fourth support plate are positioned opposite each other. The main shaft, the first support plate, the second support plate, the third support plate and the fourth support plate enclose the receiving space.

[0013] It is understandable that when the folding mechanism is in its flattened state, the first, second, third, and fourth support plates can collectively form a support surface. This surface supports the second display area of ​​the flexible screen when the folding mechanism is applied to an electronic device. In this state, the flexible screen is less prone to dents under user pressure, which improves its lifespan and reliability, and also results in better light and shadow effects. Therefore, the folding mechanism of this embodiment has superior product competitiveness.

[0014] Understandably, in one embodiment, when the folding mechanism is in the flattened state, the first support plate, the second support plate, and the main shaft together form a support surface to support the second display area of ​​the flexible screen. In this solution, since the main shaft needs to be connected to the first and second support plates through multiple connectors, the main shaft needs to have multiple clearance spaces to avoid the connectors or other components. These clearance spaces can be grooves or through holes. As a result, the surface of the main shaft used to form the support surface is prone to pitting, meaning the flatness of the support surface is poor. In this case, the flexible screen is prone to denting under user pressure, leading to screen failure and other problems, which is detrimental to improving the lifespan and reliability of the flexible screen. However, in this embodiment, when the folding mechanism is in the flattened state, the first, second, third, and fourth support plates of the folding mechanism can all be joined together to form a support surface to support the second display area of ​​the flexible screen. In this case, this embodiment eliminates the need for the main shaft to support the second display area of ​​the flexible screen, thus avoiding screen failure caused by poor flatness of the main shaft. In other words, the electronic device of this embodiment has better service life and reliability of the flexible screen when it is flattened.

[0015] In this embodiment, because the first, second, third, and fourth support plates have fewer connection points with other structures and the component mating relationships are relatively simple, there are fewer holes on the first, second, third, and fourth support plates, resulting in a more regular structure. Thus, the support surface formed by the first, second, third, and fourth support plates has fewer holes, and the gaps between adjacent support plates are smaller, which is beneficial for the flatness of the support surface and, consequently, for improving the service life and reliability of the flexible screen.

[0016] Understandably, when the folding mechanism is in the folded state, the first, second, third, and fourth support plates, together with the main shaft, can form a receiving space to accommodate the second display area of ​​the flexible screen when the folding mechanism is applied to electronic devices. Understandably, during the folding process, the first, second, third, and fourth support plates can automatically avoid each other to form the receiving space. The first, second, third, and fourth support plates provide stability and less pressure during the folding action of the flexible screen, thus reducing the risk of damage to the flexible screen due to excessive pressure from the folding mechanism, resulting in higher reliability of the flexible screen.

[0017] For example, when the folding mechanism is in the folded state, the first support plate, the second support plate, the third support plate, and the fourth support plate can stably support the second display area of ​​the flexible screen, thereby reducing the risk of damage to the flexible screen due to free movement, and thus improving the service life and reliability of the flexible screen. Therefore, the folding mechanism of this embodiment has better product competitiveness.

[0018] In one possible implementation, when the folding mechanism is in the folded state, both the first and second support plates are inclined relative to the main axis, and they are close to each other in the direction closest to the main axis. Similarly, the third and fourth support plates are also inclined relative to the main axis, and they are close to each other in the direction furthest from the main axis. This design allows for a larger accommodating space during the folding process, and the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen with less pressure. This helps reduce the risk of damage to the flexible screen due to excessive pressure from the folding mechanism, resulting in higher reliability of the flexible screen.

[0019] In one possible implementation, when the folding mechanism is in a flattened state, the first support plate and the second support plate together cover the entire main shaft;

[0020] When the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft.

[0021] Understandably, when the folding mechanism is in the flattened state, the first and second support plates together cover the entire main shaft. This allows for a more compact arrangement of the first and second support plates, which facilitates the miniaturization of the folding mechanism.

[0022] Understandably, when the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft. Thus, compared to a design where the first and second support plates do not cover the two sides of the main shaft when the folding mechanism is in the folded state, the arrangement of the first and second support plates in this embodiment is more compact, thereby facilitating the miniaturization of the folding mechanism.

[0023] In one possible implementation, the rotation axis of the first support plate rotatably connected to the first rotating joint is collinear with the rotation axis of the third support plate rotatably connected to the first support plate. Thus, the third support plate can be connected to the first rotating joint via the first support plate. It is understood that compared to solutions that use other connection structures to connect the third support plate to the first rotating joint via the first support plate, this embodiment, by aligning the rotation axes of the first support plate rotatably connected to the first rotating joint and the third support plate rotatably connected to the first support plate, simplifies assembly and saves parts, thereby simplifying the structure.

[0024] In one possible implementation, the spindle is bent to form an inner space, and the spindle is also provided with a first arc-shaped groove, which connects to the inner space.

[0025] The first support plate includes a first support plate body and an arc-shaped block;

[0026] The arc-shaped block of the first support plate is disposed in the first arc-shaped groove of the main shaft and can rotate within the first arc-shaped groove of the main shaft; at least a portion of the body of the first support plate is disposed in the inner space and can rotate within the inner space.

[0027] It is understandable that the arc-shaped block of the first support plate is located within the first arc-shaped groove of the main shaft. Through the relative movement of the two, the first support plate and the main shaft form a rotating connection structure through the engagement of the arc-shaped block and the arc-shaped groove. In other words, the first support plate and the main shaft can be rotatably connected via a virtual axis. The structure of rotational connection via a virtual axis is simple, occupies little space, and is conducive to reducing the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0028] Understandably, at least a portion of the first support plate body is located within the inner space, which helps to reduce the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0029] In one possible implementation, the first support plate body includes a bottom surface and a first end surface, the first end surface of the first support plate body is connected to the bottom surface of the first support plate body, and the bottom surface of the first support plate body faces the main shaft when the folding mechanism is in the flattened state.

[0030] The first support plate body is provided with a clearance space, which forms an opening on the bottom surface of the first support plate body. The clearance space includes a first wall surface, and the first wall surface of the clearance space is arranged opposite to the first end face of the first support plate body.

[0031] The first support plate has at least two arc-shaped blocks. One arc-shaped block of the first support plate protrudes from the first end face of the first support plate body, and the other arc-shaped block of the first support plate protrudes from the first wall surface of the clearance space.

[0032] Understandably, the arrangement of the two arc-shaped blocks on the first support plate is relatively compact, which is conducive to the miniaturization of the folding mechanism.

[0033] In one possible implementation, the first support plate is provided with a first rotation space, which is located on the side of the arc-shaped block of the first support plate away from the main axis. The first rotation space of the first support plate includes a first sidewall and a second sidewall arranged opposite to each other, and both the first sidewall and the second sidewall of the first rotation space of the first support plate are provided with a pivot hole.

[0034] The third support plate includes a pivot block, and the pivot block of the third support plate is provided with a pivot hole;

[0035] The folding mechanism also includes a first rotating shaft, which passes sequentially through a rotating shaft hole in the first side wall of the first rotation space of the first support plate, a rotating shaft hole in the rotating shaft block of the third support plate, and a rotating shaft hole in the second side wall of the first rotation space of the first support plate.

[0036] It is understandable that the first support plate and the third support plate can also be rotatably connected via a solid shaft. In this case, the connection between the first support plate and the third support plate is reliable, with minimal rotational play, and the rotational action is precise and stable.

[0037] In one possible implementation, the first rotating pair includes a bracket, a first pin, and a second pin, and the bracket is provided with spaced-apart first pin holes and second pin holes;

[0038] The connecting section of the first connector is provided with a rotation space. The rotation space of the first connector includes a first sidewall and a second sidewall that are arranged opposite to each other. Both the first sidewall and the second sidewall of the rotation space of the first connector are provided with a shaft hole.

[0039] A portion of the bracket is located within the rotation space of the connecting section of the first connector. The first pin passes sequentially through the pivot hole of the first side wall of the rotation space of the first connector, the first pin hole of the bracket, and the pivot hole of the second side wall of the rotation space of the first connector.

[0040] The first support plate is also provided with a second rotation space. The second rotation space of the first support plate includes a first side wall and a second side wall that are arranged opposite to each other. Both the first side wall and the second side wall of the second rotation space of the first support plate are provided with a pivot hole.

[0041] A portion of the bracket is located within the second rotation space of the first support plate. The second pin passes sequentially through the pivot hole of the first side wall of the second rotation space of the first support plate, the second pin hole of the bracket, and the pivot hole of the second side wall of the second rotation space of the first support plate.

[0042] It is understandable that the structure of the first rotating joint in this embodiment is relatively simple.

[0043] In one possible implementation, the connecting segment of the first connector includes a first part and a second part. The first part connects the rotating end of the first connector and the sliding end of the first connector, and the second part protrudes from one side relative to the rotating end of the first connector. The rotation space of the first connector is located in the second part.

[0044] It is understandable that the structure of the first connector in this embodiment is relatively simple.

[0045] In one possible implementation, the third support plate includes an arc-shaped block, and the first fixing frame is provided with an arc-shaped groove; the arc-shaped block of the third support plate is disposed in the arc-shaped groove of the first fixing frame and is rotatable within the arc-shaped groove of the first fixing frame.

[0046] Understandably, the third support plate and the first fixed frame can be rotatably connected via a virtual axis. This rotatable connection via a virtual axis is simple, occupies little space, and helps reduce the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0047] In one possible implementation, the first support plate is also slidably connected to the first fixing frame, and / or the second support plate is also slidably connected to the second fixing frame.

[0048] Understandably, by setting the first support plate to also slidably connect to the first fixed frame, the movement of the first support plate, the third support plate, the first connecting piece, and the first rotating joint during the unfolding or folding process of the folding mechanism can better constrain the movement trajectory of the first fixed frame, making the movement trajectory of the first fixed frame relative to the main shaft more accurate. Thus, when the folding mechanism is applied to electronic devices, the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen with less compressive force, thereby reducing the risk of damage to the flexible screen due to excessive compression by the folding mechanism and resulting in higher reliability of the flexible screen.

[0049] Understandably, by setting a second support plate that is also slidably connected to a second fixed frame, the movement of the second support plate, fourth support plate, second connector, and second rotary joint during the unfolding or folding process of the folding mechanism can better constrain the movement trajectory of the second fixed frame, making the movement trajectory of the second fixed frame relative to the main shaft more accurate. Thus, when the folding mechanism is applied to electronic devices, the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen with less compressive force, thereby reducing the risk of damage to the flexible screen due to excessive compression by the folding mechanism and resulting in higher reliability of the flexible screen.

[0050] In one possible implementation, the first support plate includes a slider, and the first fixing frame is provided with a second sliding groove; the slider of the first support plate is disposed in the second sliding groove of the first fixing frame and is able to slide within the second sliding groove of the first fixing frame.

[0051] It is understood that the slider of the first support plate is disposed within the second groove of the first fixed frame. Through the relative movement of the two, the first support plate and the first fixed frame form a sliding connection structure through the cooperation of the slider and the groove. The sliding connection structure of this embodiment is relatively simple.

[0052] In one possible implementation, the first mounting bracket includes a first side facing the spindle, and a second groove of the first mounting bracket is inclined relative to the first side of the first mounting bracket.

[0053] It is understandable that by tilting the second groove of the first fixed frame relative to the first side of the first fixed frame, when the first fixed frame and the first support plate cooperate, they can form a cooperative structure with oblique grooves. This allows the first housing to distribute the pressure exerted on the first fixed frame by the electronic device when it is dropped or impacted. In this case, the first fixed frame can distribute the energy of the drop impact to the first support plate and the main shaft. This results in better drop impact performance of the folding mechanism, thereby improving the lifespan and reliability of the electronic device.

[0054] In one possible implementation, the first support plate is also rotatably connected to the first fixed frame, and / or the second support plate is also rotatably connected to the second fixed frame.

[0055] Understandably, by setting the first support plate to be rotatably connected to the first fixed frame, the movement of the first support plate, the third support plate, the first connector, and the first rotating pair during the unfolding or folding process of the folding mechanism can better constrain the movement trajectory of the first fixed frame, making the movement trajectory of the first fixed frame relative to the main shaft more accurate. Thus, when the folding mechanism is applied to electronic devices, the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen and reduce the compressive force, thereby helping to reduce the risk of damage to the flexible screen due to excessive compression by the folding mechanism, resulting in higher reliability of the flexible screen.

[0056] Understandably, by setting a second support plate that is also rotatably connected to a second fixed frame, the movement of the second support plate, fourth support plate, second connector, and second rotating joint during the unfolding or folding process of the folding mechanism can better constrain the movement trajectory of the second fixed frame, making the movement trajectory of the second fixed frame relative to the main shaft more accurate. Thus, when the folding mechanism is applied to electronic devices, the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen with less compressive force, thereby reducing the risk of damage to the flexible screen due to excessive compression by the folding mechanism and resulting in higher reliability of the flexible screen.

[0057] Secondly, this application provides a folding mechanism. The folding mechanism includes a main shaft, a first fixed frame, a second fixed frame, a first support plate, a second support plate, a third support plate, a fourth support plate, a first connecting member, and a second connecting member. The main shaft is located between the first fixed frame and the second fixed frame. The first support plate is rotatably connected to the main shaft and slidably or rotatably connected to the first fixed frame. The third support plate is rotatably connected to the first support plate and the first fixed frame. The first connecting member includes a rotating end and a sliding end. The rotating end of the first connecting member is rotatably connected to the main shaft, and the sliding end of the first connecting member is slidably connected to the first fixed frame. The second support plate is rotatably connected to the main shaft and slidably or rotatably connected to the second fixed frame. The fourth support plate is rotatably connected to the second support plate and the second fixed frame. The second connecting member includes a rotating end and a sliding end. The rotating end of the second connecting member is rotatably connected to the main shaft, and the sliding end of the second connecting member is slidably connected to the second fixed frame.

[0058] It is understandable that the folding mechanism can be a slider-linkage motion mechanism. The main motion of the folding mechanism can consist of primary and secondary motions. The primary motion can be the motion of a slider-linkage motion mechanism composed of a main shaft, a first support plate, a first connecting member, and a first fixed frame. The secondary motion can be the motion of a linkage motion mechanism composed of a first support plate, a third support plate, and a first fixed frame. Through these primary and secondary motions, the folding mechanism ensures that the first fixed frame has one degree of freedom relative to the main shaft during the unfolding or folding process, thus determining its motion trajectory relative to the main shaft. Specifically, during the unfolding or folding process, the motion of the first support plate, the third support plate, and the first connecting member constrains the motion trajectory of the first fixed frame, ensuring its determination relative to the main shaft. Thus, during the transition from a flattened to a folded state, the first support plate, the third support plate, and the first connecting member can pull the first fixed frame back closer to the main shaft. During the process of the folding mechanism changing from the folded state to the flattened state, the first support plate, the third support plate, and the first connector can push the first fixing frame out away from the main shaft.

[0059] Understandably, during the unfolding or folding process of the folding mechanism, the movement of the second support plate, the fourth support plate, and the second connecting member can constrain the movement trajectory of the second fixed frame, thus determining its movement trajectory relative to the main shaft. Therefore, during the transition from the flattened state to the folded state, the second support plate, the fourth support plate, and the second connecting member can pull the second fixed frame back towards the main shaft. Conversely, during the transition from the folded state to the flattened state, the second support plate, the fourth support plate, and the second connecting member can push the second fixed frame away from the main shaft.

[0060] It is understood that the folding mechanism of this embodiment achieves the connection between the first fixed frame and the main shaft and the connection between the second fixed frame and the main shaft through the linkage slider structure and the linkage structure. It has few components, simple matching relationship and matching position, and easy components to manufacture and assemble, which is conducive to mass production.

[0061] In one possible implementation, when the folding mechanism is in a flattened state, the third support plate, the first support plate, the second support plate, and the fourth support plate are sequentially spliced ​​together to form a support surface.

[0062] When the folding mechanism is in the folded state, the first support plate and the second support plate are positioned opposite each other, and the third support plate and the fourth support plate are positioned opposite each other. The main shaft, the first support plate, the second support plate, the third support plate and the fourth support plate enclose the receiving space.

[0063] It is understandable that when the folding mechanism is in its flattened state, the first, second, third, and fourth support plates can collectively form a support surface. This surface supports the second display area of ​​the flexible screen when the folding mechanism is applied to an electronic device. In this state, the flexible screen is less prone to dents under user pressure, which improves its lifespan and reliability, and also results in better light and shadow effects. Therefore, the folding mechanism of this embodiment has superior product competitiveness.

[0064] Understandably, in one embodiment, when the folding mechanism is in the flattened state, the first support plate, the second support plate, and the main shaft together form a support surface to support the second display area of ​​the flexible screen. In this solution, since the main shaft needs to be connected to the first and second support plates through multiple connectors, the main shaft needs to have multiple clearance spaces to avoid the connectors or other components. These clearance spaces can be grooves or through holes. As a result, the surface of the main shaft used to form the support surface is prone to pitting, meaning the flatness of the support surface is poor. In this case, the flexible screen is prone to denting under user pressure, leading to screen failure and other problems, which is detrimental to improving the lifespan and reliability of the flexible screen. However, in this embodiment, when the folding mechanism is in the flattened state, the first, second, third, and fourth support plates of the folding mechanism can all be joined together to form a support surface to support the second display area of ​​the flexible screen. In this case, this embodiment eliminates the need for the main shaft to support the second display area of ​​the flexible screen, thus avoiding screen failure caused by poor flatness of the main shaft. In other words, the electronic device of this embodiment has better service life and reliability of the flexible screen when it is flattened.

[0065] In this embodiment, because the first, second, third, and fourth support plates have fewer connection points with other structures and the component mating relationships are relatively simple, there are fewer holes on the first, second, third, and fourth support plates, resulting in a more regular structure. Thus, the support surface formed by the first, second, third, and fourth support plates has fewer holes, and the gaps between adjacent support plates are smaller, which is beneficial for the flatness of the support surface and, consequently, for improving the service life and reliability of the flexible screen.

[0066] In this embodiment, when the folding mechanism is in the folded state, the first, second, third, and fourth support plates, together with the main shaft, form a receiving space to accommodate the second display area of ​​the flexible screen when the folding mechanism is applied to an electronic device. It is understood that during the folding process, the first, second, third, and fourth support plates can automatically avoid each other to form the receiving space. The first, second, third, and fourth support plates provide stability and reduce the compressive force on the flexible screen during folding, thereby minimizing the risk of damage to the flexible screen due to excessive compression by the folding mechanism and ensuring high reliability of the flexible screen.

[0067] For example, when the folding mechanism is in the folded state, the first support plate, the second support plate, the third support plate, and the fourth support plate can stably support the second display area of ​​the flexible screen, thereby reducing the risk of damage to the flexible screen due to free movement, and thus improving the service life and reliability of the flexible screen. Therefore, the folding mechanism of this embodiment has better product competitiveness.

[0068] In one possible implementation, when the folding mechanism is in the folded state, both the first and second support plates are inclined relative to the main axis, and they are close to each other in the direction closest to the main axis. Similarly, the third and fourth support plates are also inclined relative to the main axis, and they are close to each other in the direction furthest from the main axis. This design allows for a larger accommodating space during the folding process, and the first, second, third, and fourth support plates can stabilize the folding action of the flexible screen with less pressure. This helps reduce the risk of damage to the flexible screen due to excessive pressure from the folding mechanism, resulting in higher reliability of the flexible screen.

[0069] In one possible implementation, when the folding mechanism is in a flattened state, the first support plate and the second support plate together cover the entire main shaft;

[0070] When the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft.

[0071] Understandably, when the folding mechanism is in the flattened state, the first and second support plates together cover the entire main shaft. This allows for a more compact arrangement of the first and second support plates, which facilitates the miniaturization of the folding mechanism.

[0072] Understandably, when the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft. Thus, compared to a design where the first and second support plates do not cover the two sides of the main shaft when the folding mechanism is in the folded state, the arrangement of the first and second support plates in this embodiment is more compact, thereby facilitating the miniaturization of the folding mechanism.

[0073] In one possible implementation, the spindle is bent to form an inner space, and the spindle is also provided with a first arc-shaped groove, which connects to the inner space.

[0074] The first support plate includes a first support plate body and an arc-shaped block;

[0075] The arc-shaped block of the first support plate is disposed in the first arc-shaped groove of the main shaft and can rotate within the first arc-shaped groove of the main shaft; at least a portion of the body of the first support plate is disposed in the inner space and can rotate within the inner space.

[0076] It is understandable that the arc-shaped block of the first support plate is located within the first arc-shaped groove of the main shaft. Through the relative movement of the two, the first support plate and the main shaft form a rotating connection structure through the engagement of the arc-shaped block and the arc-shaped groove. In other words, the first support plate and the main shaft can be rotatably connected via a virtual axis. The structure of rotational connection via a virtual axis is simple, occupies little space, and is conducive to reducing the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0077] Understandably, at least a portion of the first support plate body is located within the inner space, which helps to reduce the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0078] In one possible implementation, the first support plate includes a slider, and the first fixing frame is provided with a second sliding groove; the slider of the first support plate is disposed in the second sliding groove of the first fixing frame and is able to slide within the second sliding groove of the first fixing frame.

[0079] It is understood that the slider of the first support plate is disposed within the second groove of the first fixed frame. Through the relative movement of the two, the first support plate and the first fixed frame form a sliding connection structure through the cooperation of the slider and the groove. The sliding connection structure of this embodiment is relatively simple.

[0080] In one possible implementation, the first mounting bracket includes a first side facing the spindle, and a second groove of the first mounting bracket is inclined relative to the first side of the first mounting bracket.

[0081] It is understandable that by tilting the second groove of the first fixed frame relative to the first side of the first fixed frame, when the first fixed frame and the first support plate cooperate, they can form a cooperative structure with oblique grooves. This allows the first housing to distribute the pressure exerted on the first fixed frame by the electronic device when it is dropped or impacted. In this case, the first fixed frame can distribute the energy of the drop impact to the first support plate and the main shaft. This results in better drop impact performance of the folding mechanism, thereby improving the lifespan and reliability of the electronic device.

[0082] Thirdly, this application provides a folding mechanism. The folding mechanism includes a main shaft, a first fixed frame, a second fixed frame, a first support plate, a second support plate, a third support plate, a fourth support plate, a first connector, a second connector, a first rotating joint, a second rotating joint, a third rotating joint, and a fourth rotating joint. The main shaft is located between the first fixed frame and the second fixed frame. The first support plate is rotatably connected to the main shaft, and the third support plate is rotatably connected to the first fixed frame.

[0083] The first connecting member includes a rotating end, a connecting section, and a sliding end connected in sequence. The rotating end of the first connecting member is rotatably connected to the main shaft, and the sliding end of the first connecting member is slidably connected to the first fixed frame. The connecting section of the first connecting member is connected to the first support plate through a first revolute joint, and the connecting section of the first connecting member is also connected to the third support plate through a third revolute joint. The second support plate is rotatably connected to the main shaft, and the fourth support plate is rotatably connected to the second fixed frame. The second connecting member includes a rotating end, a connecting section, and a sliding end connected in sequence. The rotating end of the second connecting member is rotatably connected to the main shaft, and the sliding end of the second connecting member is slidably connected to the second fixed frame. The connecting section of the second connecting member is connected to the second support plate through a second revolute joint, and the connecting section of the second connecting member is also connected to the fourth support plate through a fourth revolute joint.

[0084] It is understandable that the folding mechanism can be a crank-slider-connecting rod motion mechanism. The main motion of the folding mechanism can consist of a primary motion and a secondary motion. The primary motion can be the motion of a first four-bar linkage consisting of a main shaft, a first support plate, a first connecting member, and a first revolute joint. The secondary motion can be the motion of a second four-bar linkage consisting of a third support plate, a first fixed frame, a third revolute joint, and a first connecting member. Through the primary and secondary motions, the folding mechanism can ensure that the first fixed frame has one degree of freedom relative to the main shaft during the unfolding or folding process, thus determining its motion trajectory relative to the main shaft. Specifically, during the unfolding or folding process, the motion of the first support plate, the third support plate, the first connecting member, the first revolute joint, and the third revolute joint can constrain the motion trajectory of the first fixed frame, ensuring its determination relative to the main shaft. Thus, during the transition from a flattened state to a folded state, the first support plate, the third support plate, the first connecting member, the first revolute joint, and the third revolute joint can pull the first fixed frame back closer to the main shaft. During the process of the folding mechanism changing from the folded state to the flattened state, the first support plate, the third support plate, the first connector, the first rotating joint, and the third rotating joint can push the first fixed frame away from the main shaft.

[0085] Understandably, during the unfolding or folding process of the folding mechanism, the movement of the second support plate, fourth support plate, second connector, second revolute joint, and fourth revolute joint can constrain the movement trajectory of the second fixed frame, thus determining its movement trajectory relative to the main shaft. Therefore, during the transition from the flattened state to the folded state, the second support plate, fourth support plate, second connector, second revolute joint, and fourth revolute joint can pull the second fixed frame back towards the main shaft. Conversely, during the transition from the folded state to the flattened state, the second support plate, fourth support plate, second connector, second revolute joint, and fourth revolute joint can push the second fixed frame away from the main shaft.

[0086] In one possible implementation, when the folding mechanism is in a flattened state, the third support plate, the first support plate, the second support plate, and the fourth support plate are sequentially spliced ​​together to form a support surface.

[0087] When the folding mechanism is in the folded state, the first support plate and the second support plate are positioned opposite each other, and the third support plate and the fourth support plate are positioned opposite each other. The main shaft, the first support plate, the second support plate, the third support plate and the fourth support plate enclose the receiving space.

[0088] It is understandable that when the folding mechanism is in its flattened state, the first, second, third, and fourth support plates can collectively form a support surface. This surface supports the second display area of ​​the flexible screen when the folding mechanism is applied to an electronic device. In this state, the flexible screen is less prone to dents under user pressure, which improves its lifespan and reliability, and also results in better light and shadow effects. Therefore, the folding mechanism of this embodiment has superior product competitiveness.

[0089] Understandably, in one embodiment, when the folding mechanism is in the flattened state, the first support plate, the second support plate, and the main shaft together form a support surface to support the second display area of ​​the flexible screen. In this solution, since the main shaft needs to be connected to the first and second support plates through multiple connectors, the main shaft needs to have multiple clearance spaces to avoid the connectors or other components. These clearance spaces can be grooves or through holes. As a result, the surface of the main shaft used to form the support surface is prone to pitting, meaning the flatness of the support surface is poor. In this case, the flexible screen is prone to denting under user pressure, leading to screen failure and other problems, which is detrimental to improving the lifespan and reliability of the flexible screen. However, in this embodiment, when the folding mechanism is in the flattened state, the first, second, third, and fourth support plates of the folding mechanism can all be joined together to form a support surface to support the second display area of ​​the flexible screen. In this case, this embodiment eliminates the need for the main shaft to support the second display area of ​​the flexible screen, thus avoiding screen failure caused by poor flatness of the main shaft. In other words, the electronic device of this embodiment has better service life and reliability of the flexible screen when it is flattened.

[0090] Understandably, because the first, second, third, and fourth support plates have fewer connections to other structures and simpler component fits, they have fewer holes and a more regular structure. This results in fewer holes in the support surface formed by the first, second, third, and fourth support plates, and smaller gaps between adjacent support plates, which contributes to the flatness of the support surface and thus improves the lifespan and reliability of the flexible screen.

[0091] Understandably, when the folding mechanism is in the folded state, the first, second, third, and fourth support plates, together with the main shaft, can form a receiving space to accommodate the second display area of ​​the flexible screen when the folding mechanism is applied to electronic devices. Understandably, during the folding process, the first, second, third, and fourth support plates can automatically avoid each other to form the receiving space. The first, second, third, and fourth support plates provide stability and less pressure during the folding action of the flexible screen, thus reducing the risk of damage to the flexible screen due to excessive pressure from the folding mechanism, resulting in higher reliability of the flexible screen.

[0092] For example, when the folding mechanism is in the folded state, the first support plate, the second support plate, the third support plate, and the fourth support plate can stably support the second display area of ​​the flexible screen, thereby reducing the risk of damage to the flexible screen due to free movement, and thus improving the service life and reliability of the flexible screen. Therefore, the folding mechanism of this embodiment has better product competitiveness.

[0093] In one possible implementation, when the folding mechanism is in the folded state, both the first and second support plates are inclined relative to the main axis, and they are close to each other in the direction closest to the main axis. Similarly, the third and fourth support plates are also inclined relative to the main axis, and they are close to each other in the direction furthest from the main axis. This allows for a larger accommodating space during the folding process of the electronic device. The first, second, third, and fourth support plates can stabilize the folding action of the flexible screen and reduce the compressive force, thereby reducing the risk of damage to the flexible screen due to excessive compression by the folding mechanism and resulting in higher reliability of the flexible screen.

[0094] In one possible implementation, when the folding mechanism is in a flattened state, the first support plate and the second support plate together cover the entire main shaft;

[0095] When the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft.

[0096] Understandably, when the folding mechanism is in the flattened state, the first and second support plates together cover the entire main shaft. This allows for a more compact arrangement of the first and second support plates, which facilitates the miniaturization of the folding mechanism.

[0097] Understandably, when the folding mechanism is in the folded state, the first support plate and the second support plate respectively cover the two sides of the main shaft. Thus, compared to a design where the first and second support plates do not cover the two sides of the main shaft when the folding mechanism is in the folded state, the arrangement of the first and second support plates in this embodiment is more compact, thereby facilitating the miniaturization of the folding mechanism.

[0098] In one possible implementation, the spindle is bent to form an inner space, and the spindle is also provided with a first arc-shaped groove, which connects to the inner space.

[0099] The first support plate includes a first support plate body and an arc-shaped block;

[0100] The arc-shaped block of the first support plate is disposed in the first arc-shaped groove of the main shaft and can rotate within the first arc-shaped groove of the main shaft; at least a portion of the body of the first support plate is disposed in the inner space and can rotate within the inner space.

[0101] It is understandable that the arc-shaped block of the first support plate is located within the first arc-shaped groove of the main shaft. Through the relative movement of the two, the first support plate and the main shaft form a rotating connection structure through the engagement of the arc-shaped block and the arc-shaped groove. In other words, the first support plate and the main shaft can be rotatably connected via a virtual axis. The structure of rotational connection via a virtual axis is simple, occupies little space, and is conducive to reducing the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0102] Understandably, at least a portion of the first support plate body is located within the inner space, which helps to reduce the thickness of the folding mechanism, making it easier to achieve a thinner and lighter design for the folding mechanism and electronic devices.

[0103] Fourthly, this application provides an electronic device. The electronic device includes a first housing, a second housing, a flexible screen, and a folding mechanism as described in any one of claims 1 to 1, wherein a first fixing frame is fixedly connected to the first housing, and a second fixing frame is fixedly connected to the second housing;

[0104] The flexible screen includes a first display area, a second display area, and a third display area connected in sequence. The first display area is fixed to the first housing, and the third display area is fixed to the second housing.

[0105] Understandably, since the first fixing frame can be fixedly connected to the first housing, and the first housing can move with the first fixing frame, the folding mechanism can control the movement trajectory of the first housing by controlling the movement trajectory of the first fixing frame. Furthermore, since the second fixing frame can be fixedly connected to the second housing, and the second housing can move with the second fixing frame, the folding mechanism can control the movement trajectory of the second housing by controlling the movement trajectory of the second fixing frame.

[0106] Understandably, since the first fixed frame is fixedly connected to the first housing, the first support plate, the third support plate, the first connector, and the first rotating joint can pull the first fixed frame back towards the main shaft, and also push the first fixed frame away from the main shaft. This allows the first fixed frame to pull the first housing back towards the main shaft, and also push the first housing away from the main shaft, meaning the first fixed frame can drive the first housing to move inward and outward. Similarly, since the second fixed frame is fixedly connected to the second housing, the second support plate, the fourth support plate, the second connector, and the second rotating joint can pull the second fixed frame back towards the main shaft, and also push the second fixed frame away from the main shaft. This allows the second fixed frame to pull the second housing back towards the main shaft, and also push the second housing away from the main shaft, meaning the second fixed frame can drive the second housing to move inward and outward.

[0107] Understandably, when the electronic device switches from a flattened state to a folded state, the first and second housings move closer together. The first housing can drive the first fixing frame to rotate relative to the main shaft via the first support plate, the third support plate, the first connector, and the first rotating joint. The second housing can drive the second fixing frame to rotate relative to the main shaft via the second support plate, the fourth support plate, the second connector, and the second rotating joint. During the unfolding process of the first and second housings, the first fixing frame can drive the first housing to move away from the main shaft, and the second fixing frame can drive the second housing to move away from the main shaft. That is, the folding mechanism can realize the inward pulling motion of the housing during the change from a flattened state to a folded state, and the outward pushing motion of the housing during the change from a folded state to a flattened state. Therefore, during the unfolding or folding process, the folding mechanism can reduce the risk of pulling or squeezing the flexible screen, thereby protecting the flexible screen, improving its reliability, and giving the flexible screen and electronic device a longer service life.

[0108] In one possible implementation, when the electronic device is in a flattened state, the first support plate, the second support plate, the third support plate, and the fourth support plate together form a support surface that supports the second display area; when the folding mechanism is in a folded state, the main shaft, the first support plate, the second support plate, the third support plate, and the fourth support plate enclose an accommodating space that accommodates the second display area.

[0109] It is understandable that when the electronic device is in a flattened state, the first, second, third, and fourth support plates of the folding mechanism can collectively form a support surface to support the second display area of ​​the flexible screen. In this state, the flexible screen is less prone to dents under user pressure, which improves its lifespan and reliability, and also results in better light and shadow effects. Therefore, the folding mechanism of this embodiment has superior product competitiveness.

[0110] Understandably, in one embodiment, when the electronic device is in a flattened state, the first support plate, the second support plate, and the main shaft together form a support surface to support the second display area of ​​the flexible screen. In this solution, since the main shaft needs to be connected to the first and second support plates through multiple connectors, the main shaft needs to have multiple clearance spaces to avoid the connectors or other components. These clearance spaces can be grooves or through holes. As a result, the surface of the main shaft used to form the support surface is prone to pitting, meaning the flatness of the support surface is poor. In this case, the flexible screen is prone to denting under user pressure, leading to screen failure and other problems, which is detrimental to improving the lifespan and reliability of the flexible screen. However, in this embodiment, when the electronic device is in a flattened state, the first, second, third, and fourth support plates of the folding mechanism can all be spliced ​​together to form a support surface to support the second display area of ​​the flexible screen. In this case, this embodiment eliminates the need for the main shaft to support the second display area of ​​the flexible screen, thus avoiding screen failure caused by poor flatness of the main shaft. In other words, the electronic device of this embodiment has better service life and reliability of the flexible screen when it is flattened.

[0111] Understandably, because the first, second, third, and fourth support plates have fewer connections to other structures and simpler component fits, they have fewer holes and a more regular structure. This results in fewer holes in the support surface formed by the first, second, third, and fourth support plates, and smaller gaps between adjacent support plates, which contributes to the flatness of the support surface and thus improves the lifespan and reliability of the flexible screen.

[0112] Understandably, when the electronic device is in a folded state, the first, second, third, and fourth support plates, together with the main shaft, can form a receiving space to accommodate the second display area of ​​the flexible screen. Understandably, during the folding process of the electronic device, the first, second, third, and fourth support plates can automatically avoid each other to form the receiving space. The first, second, third, and fourth support plates provide stability and reduce pressure during the folding action of the flexible screen, thereby reducing the risk of damage to the flexible screen due to excessive pressure from the folding mechanism, resulting in higher reliability of the flexible screen.

[0113] For example, when the electronic device is in a folded state, the first support plate, the second support plate, the third support plate, and the fourth support plate can stably support the second display area of ​​the flexible screen, thereby reducing the risk of damage to the flexible screen due to free movement, and thus improving the service life and reliability of the flexible screen. Therefore, the folding mechanism of this embodiment has better product competitiveness. Attached Figure Description

[0114] Figure 1 This is a schematic diagram of the electronic device provided in the embodiments of this application in a flattened state;

[0115] Figure 2 yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device shown at line AA;

[0116] Figure 3 yes Figure 1 A schematic diagram of one embodiment of the electronic device in a folded state;

[0117] Figure 4 yes Figure 3 A partial cross-sectional view of one embodiment of the electronic device shown at the BB line;

[0118] Figure 5 yes Figure 1 Partial breakdown of one embodiment of the electronic device shown Figure 1 ;

[0119] Figure 6 yes Figure 1 Partial breakdown of one embodiment of the electronic device shown Figure 2 ;

[0120] Figure 7 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism shown. Figure 1 ;

[0121] Figure 8 yes Figure 7 An enlarged schematic diagram of one embodiment of the main shaft at point C;

[0122] Figure 9 yes Figure 7 A partially exploded view of one embodiment of the first connecting component and the second connecting component shown.

[0123] Figure 10 yes Figure 9 A schematic diagram of one embodiment of the first and second support plates shown;

[0124] Figure 11 yes Figure 9 The diagram shows the structure of the first and second support plates from another angle.

[0125] Figure 12 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 1 ;

[0126] Figure 13 yes Figure 12 A partial cross-sectional view of one embodiment of the partial folding mechanism at line DD;

[0127] Figure 14 yes Figure 12 The diagram shows a partial cross-sectional view of the folding mechanism in a folded state.

[0128] Figure 15 yes Figure 9 A schematic diagram of one embodiment of the third and fourth support plates shown;

[0129] Figure 16 yes Figure 9 The diagram shows the structure of the third and fourth support plates from another angle.

[0130] Figure 17 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism shown. Figure 2 ;

[0131] Figure 18 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 2 ;

[0132] Figure 19 yes Figure 18 The diagram shows a portion of the folding mechanism in a folded state.

[0133] Figure 20 yes Figure 9 A schematic diagram of one embodiment of the first and second fixing frames shown;

[0134] Figure 21 yes Figure 9 The diagram shows the structure of the first and second fixing frames at another angle;

[0135] Figure 22 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 3 ;

[0136] Figure 23 yes Figure 22 The diagram shows a portion of the folding mechanism in a folded state.

[0137] Figure 24 yes Figure 9 A schematic diagram of one embodiment of the first and second connectors shown;

[0138] Figure 25 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism shown. Figure 3 ;

[0139] Figure 26 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 4 ;

[0140] Figure 27 yes Figure 26 The diagram shows a partial cross-sectional view of the folding mechanism in a folded state.

[0141] Figure 28 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism shown. Figure 4 ;

[0142] Figure 29 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 5 ;

[0143] Figure 30 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 6 ;

[0144] Figure 31 yes Figure 30 A partial cross-sectional view of one embodiment of the partial folding mechanism at line EE;

[0145] Figure 32 yes Figure 30 The diagram shows a cross-sectional view of the folding mechanism in a folded state.

[0146] Figure 33 yes Figure 7 A schematic diagram illustrating one embodiment of the connection relationship between a portion of the first connecting component and the spindle;

[0147] Figure 34 yes Figure 5 A partial cross-sectional view of one embodiment of the electronic device shown at the FF line;

[0148] Figure 35 yes Figure 3 A partial cross-sectional view of one embodiment of the electronic device shown at the GG line;

[0149] Figure 36 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism shown. Figure 7 ;

[0150] Figure 37 yes Figure 36 A partial cross-sectional view of one embodiment of the partial folding mechanism shown at line HH;

[0151] Figure 38 yes Figure 36 A schematic diagram illustrating one embodiment of the connection relationship between a portion of the first connecting component and the spindle;

[0152] Figure 39 yes Figure 36 A schematic diagram illustrating another embodiment of the connection relationship between a portion of the first connecting component and the spindle;

[0153] Figure 40 yes Figure 7 A schematic diagram illustrating another embodiment of the connection relationship between a portion of the first connecting component and the spindle;

[0154] Figure 41 yes Figure 7 A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component and the spindle. Figure 1 ;

[0155] Figure 42 yes Figure 7 A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component and the spindle. Figure 1 ;

[0156] Figure 43 yes Figure 7 A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component and the spindle. Figure 2 . Detailed Implementation

[0157] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0158] In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," "joining," and "joining" should be interpreted broadly. For example, "joining" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an electrical connection or a mechanical connection. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the components can rotate relative to each other after connection. "Sliding connection" refers to a connection where the components can slide relative to each other after connection. "Movable connection" refers to a connection where the components can move relative to each other after connection. Furthermore, the integrated structure obtained by a one-piece molding process means that during the formation of one of the two components, that component is connected to the other component without requiring further processing (such as bonding, welding, snap-fit ​​connection, or screw connection) to connect the two components. Components A and B can be arranged relative to each other such that component A is projected along a target direction to obtain projection C, and component B is projected along a target direction to obtain projection D, with projection C and projection D at least largely overlapping. In some embodiments, the majority overlap can be any of the following: projection C is completely located within projection D. Alternatively, projection D lies entirely within projection C. Alternatively, projection C and projection D intersect each other, and the intersection area of ​​projection C and projection D accounts for more than 50% of projection C or projection D.

[0159] The directional terms mentioned in the embodiments of this application, such as "top," "bottom," "inner," and "outer," are only for reference to the directions in 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. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0160] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship. "Multiple" means at least two.

[0161] Figure 1This is a schematic diagram of the electronic device 1000 provided in the embodiments of this application in a flattened state. Figure 2 yes Figure 1 A partial cross-sectional view of one embodiment of the electronic device 1000 shown at line AA. Figure 3 yes Figure 1 The diagram shows a structural schematic of one embodiment of the electronic device 1000 in a folded state. Figure 4 yes Figure 3 A partial cross-sectional view of one embodiment of the electronic device 1000 at the BB line.

[0162] like Figures 1 to 4 As shown, this application provides a foldable electronic device 1000. The foldable electronic device 1000 can be a foldable device such as a mobile phone, tablet computer, personal computer, laptop computer, in-vehicle device, or wearable device (such as a smart bracelet). This application provides a detailed description using a mobile phone as an example of the electronic device 1000.

[0163] For ease of description, exemplarily, the thickness direction of electronic device 1000 is defined as the Z-axis direction, and the extension direction of the rotation axis of electronic device 1000 is defined as the Y-axis direction. The direction perpendicular to both the Y-axis and Z-axis is defined as the X-axis direction. It is understood that the coordinate system of electronic device 1000 can also be flexibly set according to specific requirements.

[0164] In this embodiment, the rotation axis of the electronic device 1000 is in the Y-axis direction, meaning the electronic device 1000 can be relatively flattened or folded along the Y-axis. Thus, when the electronic device 1000 is in a folded state, its size in the X-axis direction decreases. This embodiment uses the example of the electronic device 1000's rotation axis being in the Y-axis direction for explanation. In this case, the electronic device 1000 can be folded horizontally, and the folding and flattening of the electronic device 1000 affects its length. In other embodiments, the rotation axis of the electronic device 1000 can also be in the X-axis direction, meaning the electronic device 1000 can be relatively flattened or folded along the X-axis. In this case, the electronic device 1000 can be folded vertically, and the folding and flattening of the electronic device 1000 affects its width.

[0165] Figure 5 yes Figure 1 Partial breakdown of one embodiment of the electronic device 1000 shown Figure 1 . Figure 6 yes Figure 1 Partial breakdown of one embodiment of the electronic device 1000 shown Figure 2 .

[0166] like Figure 5 and Figure 6 As shown, the electronic device 1000 includes a folding mechanism 100, a flexible screen 200, a first housing 300, and a second housing 400. The flexible screen 200 can be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a miniature organic light-emitting diode (MLED) display, a micro-organic light-emitting diode (MOLED) display, or a quantum dot light-emitting diode (QLED) display, etc. For example, the thickness direction of the folding mechanism 100 can be the Z-axis direction, the length direction of the folding mechanism 100 can be the Y-axis direction, and the width direction of the folding mechanism 100 can be the X-axis direction. In other embodiments, the coordinate system of the folding mechanism 100 can also be flexibly set according to specific needs.

[0167] like Figure 5 and Figure 6 As shown, exemplarily, a folding mechanism 100 is connected between a first housing 300 and a second housing 400. The folding mechanism 100 is used to unfold or fold the first housing 300 and the second housing 400 relative to each other. The folding mechanism 100, the first housing 300, and the second housing 400 can constitute a housing device for an electronic device 1000.

[0168] Please see Figure 5 and Figure 6 and combined Figure 1 and Figure 2 As shown, when the first housing 300 and the second housing 400 are unfolded to a flattened state, the electronic device 1000 is in a flattened state, and the first housing 300 and the second housing 400 can be at a 180° angle. In other embodiments, the first housing 300 and the second housing 400 may also have a slight deviation from 180°, such as 165°, 177° or 185°.

[0169] like Figure 3 and Figure 4As shown, when the first housing 300 and the second housing 400 are folded together to a closed state, the electronic device 1000 is in a folded state. The first housing 300 and the second housing 400 can close together without significant gaps. This results in a better appearance for the electronic device 1000 and improved waterproof, dustproof, and foreign object protection performance. The closure of the first housing 300 and the second housing 400 includes both situations where they are pressed against each other, and situations where there is a small gap between them. When there is a small gap between the first housing 300 and the second housing 400, foreign objects from outside the electronic device 1000 will not be able to enter between the first housing 300 and the second housing 400 through this gap.

[0170] The first housing 300 and the second housing 400 can also be unfolded or folded to an intermediate state, so that the electronic device 1000 is in an intermediate state, which can be any state between the unfolded state and the folded state.

[0171] Please see Figure 5 and Figure 6 and combined Figures 1 to 4 As shown, the flexible screen 200 includes a first display area 201, a second display area 202, and a third display area 203. The second display area 202 is connected between the first display area 201 and the third display area 203. Figure 1 , Figure 2 , Figure 5 and Figure 6 The first display area 201, the second display area 202, and the third display area 203 are schematically distinguished by dashed lines. The first display area 201 of the flexible screen 200 can be fixed to the first housing 300. The third display area 203 can be fixed to the second housing 400. During the relative unfolding or folding of the first housing 300 and the second housing 400, the first housing 300 can drive the first display area 201 to move, and the second housing 400 can drive the third display area 203 to move. When the first display area 201 and the third display area 203 unfold or fold relative to each other, the second display area 202 can deform.

[0172] It is understandable that, since the first display area 201 is fixed to the first housing 300 and the third display area 203 is fixed to the second housing 400, when the first housing 300 and the second housing 400 are unfolded or folded relative to each other, the relative unfolding and folding actions between the first display area 201 and the third display area 203 can be accurately controlled, making the folding process and movement of the flexible screen 200 controllable and highly reliable.

[0173] Please see Figure 5 and Figure 6 and combined Figure 1 and Figure 2As shown, when the electronic device 1000 is in a flattened state, the flexible screen 200 can also be in a flattened state. For example, the first display area 201, the second display area 202, and the third display area 203 of the flexible screen 200 can be at a 180° angle. In other embodiments, the first display area 201, the second display area 202, and the third display area 203 may also have a slight deviation from 180°, such as 165°, 177°, or 185°. In this case, the flexible screen 200 has a continuous large display area, meaning the flexible screen 200 can achieve large-screen display, resulting in a better user experience.

[0174] For example, when the electronic device 1000 is in a flattened state, at least a portion of the folding mechanism 100 can be used to support the second display area 202. In this way, when the second display area 202 is subjected to pressing, squeezing, or impact, the folding mechanism 100 can be used to improve the pressure resistance and impact resistance of the second display area 202, that is, to ensure that the second display area 202 is not prone to dents or other problems.

[0175] like Figure 3 and Figure 4 As shown, when the electronic device 1000 is in a folded state, the flexible screen 200 is also in a folded state. For example, the first display area 201 and the third display area 203 of the flexible screen 200 are brought closer together. The second display area 202 is bent. At this time, the flexible screen 200 can be roughly shaped like a teardrop.

[0176] For example, when the electronic device 1000 is in a folded state, the flexible screen 200 is located within the space enclosed by the first housing 300, the folding mechanism 100, and the second housing 400. The first display area 201 and the third display area 203 may be located between the first housing 300 and the second housing 400. At this time, the electronic device 1000 has a smaller planar size (a smaller width), making it easier for users to carry and store.

[0177] Figure 7 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism 100 shown. Figure 1 .

[0178] Please see Figure 7 and combined Figure 5 and Figure 6 As shown, the folding mechanism 100 includes a main shaft 1, a first connecting assembly 2, and a second connecting assembly 3. The main shaft 1 extends along the Y-axis. It is understood that... Figures 5 to 7 The folding mechanism 100 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figures 5 to 7 Limited by.

[0179] Exemplarily, the spindle 1 is located between the first housing 300 and the second housing 400. A first connecting assembly 2 connects the first housing 300, the spindle 1, and the second housing 400. A second connecting assembly 3 connects the first housing 300, the spindle 1, and the second housing 400. Exemplarily, the first connecting assembly 2 and the second connecting assembly 3 may be spaced apart along the length extension direction of the spindle 1 (i.e., the Y-axis direction), for example, they may be connected to the top and bottom of the spindle 1 respectively. It is understood that the first connecting assembly 2 and the second connecting assembly 3 may primarily be used to allow the first housing 300 and the second housing 400 to unfold or fold relative to each other.

[0180] Please see Figures 5 to 7 and combined Figure 1 and Figure 2 As shown, exemplarily, when the electronic device 1000 is in a flattened state, both the first connecting component 2 and the second connecting component 3 are open, and the first connecting component 2 and the second connecting component 3 together form at least a portion of the support surface 100a. The support surface 100a can be used to support the second display area 202. In addition, the first connecting component 2 covers a portion of the main shaft 1, and the second connecting component 3 covers a portion of the main shaft 1.

[0181] Please see Figures 5 to 7 , combined Figure 3 and Figure 4 As shown, exemplarily, when the electronic device 1000 is in a folded state, the main shaft 1, the first connecting component 2, and the second connecting component 3 enclose at least a portion of the receiving space 100b. The receiving space 100b can be used to accommodate the second display area 202. Furthermore, the first connecting component 2 and the second connecting component 3 can be located on the same side of the main shaft 1.

[0182] It is understood that the second connecting component 3 and the first connecting component 2 can have the same or similar structure, be symmetrical or partially symmetrical, or have different structures. In this embodiment, the second connecting component 3 and the first connecting component 2 are symmetrical structures. The basic design of the component structure of the second connecting component 3, the design of the connection relationship between the components, and the design of the connection relationship between the components and other structures outside the component can all refer to the relevant scheme of the first connecting component 2. At the same time, slight differences are allowed between the second connecting component 3 and the first connecting component 2 in the detailed structure or positional arrangement of the components. Specific details will not be elaborated here. The following description will take the structure of the first connecting component 2 as an example.

[0183] In other embodiments, the folding mechanism 100 may further include a third connecting component (not shown), a fourth connecting component (not shown), ..., an Nth connecting component (not shown). Here, N is an integer greater than 2. The third connecting component, the fourth connecting component, ..., the Nth connecting component can connect the first housing 300, the main shaft 1, and the second housing 400. The third connecting component, the fourth connecting component, ..., the Nth connecting component can cooperate with the first connecting component 2 and the second connecting component 3 to better enable the first housing 300 and the second housing 400 to be relatively unfolded or folded.

[0184] Please see Figure 7 and combined Figure 5 and Figure 6 As shown, the spindle 1 includes a first end 1a, a middle part 1b, and a second end 1c connected in sequence. The first end 1a of the spindle 1 can be connected to the first connecting assembly 2. The second end 1c of the spindle 1 can be connected to the second connecting assembly 3. It is understood that the second end 1c of the spindle 1 and the first end 1a of the spindle 1 can have the same or similar structure, a symmetrical or partially symmetrical structure, or a different structure. In this embodiment, the second end 1c of the spindle 1 and the first end 1a of the spindle 1 have a symmetrical structure. The basic design of the component structure of the second end 1c of the spindle 1, the design of the connection relationship between the components, and the design of the connection relationship between the components and other structures besides the assembly can all refer to the relevant scheme of the first end 1a of the spindle 1. At the same time, it is permissible for the second end 1c of the spindle 1 and the first end 1a of the spindle 1 to have slight differences in the detailed structure or positional arrangement of the components. Specific details will not be elaborated here. The following description will take the structure of the first end 1a of the spindle 1 as an example.

[0185] Figure 8 yes Figure 7 An enlarged schematic diagram of one embodiment of the main shaft 1 at point C.

[0186] Please see Figure 8 and combined Figure 7 As shown, by way of example, the spindle 1 is bent to form an inner space 10 of the spindle 1. The inner space 10 is located inside the spindle 1.

[0187] For example, the first end 1a of the spindle 1 is provided with a first arc-shaped groove 11. The first arc-shaped groove 11 of the spindle 1 can communicate with the inner space 10 of the spindle 1. The spindle 1 can have one or more first arc-shaped grooves 11. When the spindle 1 has multiple first arc-shaped grooves 11, the multiple first arc-shaped grooves 11 of the spindle 1 can be arranged along the Y-axis direction. This embodiment is described with the example of two first arc-shaped grooves 11 of the spindle 1.

[0188] For example, the first end 1a of the spindle 1 is also provided with a second arc-shaped groove 12. The arrangement of the second arc-shaped groove 12 of the spindle 1 can be referred to the arrangement of the first arc-shaped groove 11 of the spindle 1. Specific details will not be repeated here.

[0189] In one embodiment, the first arc-shaped groove 11 and the second arc-shaped groove 12 of the spindle 1 can be arranged at intervals along the X-axis direction. For example, the first arc-shaped groove 11 and the second arc-shaped groove 12 of the spindle 1 can be symmetrically arranged. In other embodiments, the relative positions of the first arc-shaped groove 11 and the second arc-shaped groove 12 of the spindle 1 are not specifically limited.

[0190] For example, the first end 1a of the spindle 1 is further provided with a first rotation space 13. The first rotation space 13 can be a groove structure or a through hole structure. The first rotation space 13 of the spindle 1 can be located on one side of the first arcuate groove 11 of the spindle 1. The first rotation space 13 of the spindle 1 includes a first sidewall 131 and a second sidewall 132 disposed opposite to each other. Both the first sidewall 131 and the second sidewall 132 of the first rotation space 13 of the spindle 1 are provided with a shaft hole 133. The shaft hole 133 of the second sidewall 132 of the first rotation space 13 of the spindle 1 is disposed opposite to the shaft hole 133 of the first sidewall 131 of the first rotation space 13 of the spindle 1.

[0191] For example, the first end 1a of the spindle 1 is further provided with a second rotation space 14. The second rotation space 14 can be a groove structure or a through hole structure. The second rotation space 14 of the spindle 1 can be located on one side of the second arcuate groove 12 of the spindle 1. The second rotation space 14 of the spindle 1 includes a first sidewall 141 and a second sidewall 142 disposed opposite to each other. Both the first sidewall 141 and the second sidewall 142 of the second rotation space 14 of the spindle 1 are provided with a shaft hole 143. The shaft hole 143 of the second sidewall 142 of the second rotation space 14 of the spindle 1 is disposed opposite to the shaft hole 143 of the first sidewall 141 of the second rotation space 14 of the spindle 1.

[0192] In one embodiment, the second rotation space 14 and the first rotation space 13 of the spindle 1 can be arranged at intervals along the X-axis. For example, the second rotation space 14 and the first rotation space 13 of the spindle 1 can be symmetrically arranged. In other embodiments, the relative positions of the second rotation space 14 and the first rotation space 13 of the spindle 1 are not specifically limited.

[0193] In one embodiment, the main shaft 1 may also be provided with a protrusion (not shown). The protrusion can be used to limit the first connecting component 2 and / or the second connecting component 3, preventing the first connecting component 2 from accidentally disengaging from the main shaft 1, thereby improving the connection reliability and motion reliability of the first connecting component 2, the second connecting component 3 and the main shaft 1, and making the folding mechanism 100 more reliable.

[0194] Figure 9 yes Figure 7 A partially exploded view of one embodiment of the first connecting component 2 and the second connecting component 3 shown.

[0195] like Figure 9 As shown, the first connecting assembly 2 includes a first fixing frame 21, a second fixing frame 22, a first support plate 23, a second support plate 24, a third support plate 25, a fourth support plate 26, a first connector 27, a second connector 28, a first rotating joint 29a, and a second rotating joint 29b. It is understood that... Figure 9 The accompanying drawings below only schematically illustrate some components of the first connecting assembly 2; the actual shape, size, position, and structure of these components are not subject to change. Figure 9 As defined in the accompanying drawings below. In other embodiments, the first connecting assembly 2 may have more or fewer components. The first connecting assembly 2 may have more components. For example, the first connecting assembly 2 may also include a synchronizing element (not shown) and / or a damping element (not shown). The first connecting assembly 2 may also have fewer components. For example, the first connecting assembly 2 may also not include the first rotating joint 29a and / or the second rotating joint 29b.

[0196] It is understood that the arrangement of the second connecting component 3 in this embodiment can refer to the arrangement of the first connecting component 2. Therefore, the second connecting component 3 in this embodiment may also include a first fixing frame 31, a second fixing frame 32, a first support plate 33, a second support plate 34, a third support plate 35, a fourth support plate 36, a first connector 37, a second connector 38, a first rotating joint 39a, and a second rotating joint 39b. In one embodiment, the first fixing frame 31 of the second connecting component 3 may be integrally formed with the first fixing frame 21 of the first connecting component 2. The second fixing frame 32 of the second connecting component 3 may be integrally formed with the second fixing frame 22 of the first connecting component 2. The first support plate 33 of the second connecting component 3 may be integrally formed with the first support plate 23 of the first connecting component 2. The second support plate 34 of the second connecting component 3 may be integrally formed with the second support plate 24 of the first connecting component 2. The third support plate 35 of the second connecting component 3 may be integrally formed with the third support plate 25 of the first connecting component 2. The fourth support plate 36 of the second connecting component 3 can be integrally formed with the fourth support plate 26 of the first connecting component 2. In other embodiments, the components of the second connecting component 3 and the components of the first connecting component 2 can also be independently and separately arranged structural components.

[0197] Figure 10 yes Figure 9The diagram shows a structural schematic of one embodiment of the first support plate 23 and the second support plate 24. Figure 11 yes Figure 9 The diagram shows the structure of the first support plate 23 and the second support plate 24 from another angle.

[0198] like Figure 10 and Figure 11 As shown, the first support plate 23 includes a first support plate body 231, an arc-shaped block 232, and a slider 233. It is understood that the first support plate 23 can be a one-piece molded structural component to achieve high structural strength. Figure 10 The accompanying drawings below only schematically illustrate some components of the first support plate 23; the actual shape, size, position, and structure of these components are not subject to change. Figure 10 As well as the accompanying drawings below. In addition, when the first support plate 23 has some other form, the first support plate 23 may not include the arc block 232 and / or the slider 233.

[0199] It is understandable that the first support plate 23 can be detachably connected into a single structural component using different structural parts. In this way, when assembling the first support plate 23 with other structural components, the different structural parts can be assembled separately with the other structural parts first, and then the different structural parts can be assembled into a whole. This assembly method can reduce the assembly difficulty between other structural components and the first support plate 23.

[0200] like Figure 10 and Figure 11 As shown, the arc-shaped block 232 of the first support plate 23 protrudes from the first support plate body 231. The number of arc-shaped blocks 232 in the first support plate 23 can be one or more (i.e., at least two). When there are multiple arc-shaped blocks 232 in the first support plate 23, the multiple arc-shaped blocks 232 of the first support plate 23 protrude one-to-one from multiple surfaces of the first support plate body 231 in the Y-axis direction. The following description uses the example of two arc-shaped blocks 232 of the first support plate 23 protruding one-to-one from two surfaces of the first support plate body 231 in the Y-axis direction.

[0201] Exemplarily, the first support plate body 231 includes a top surface 2311, a bottom surface 2312, a first end surface 2313, and a second end surface 2314. The first end surface 2313 and the second end surface 2314 of the first support plate body 231 are connected between the top surface 2311 and the bottom surface 2312 of the first support plate body 231. Exemplarily, the top surface 2311 and the bottom surface 2312 of the first support plate body 231 can be two surfaces of the first support plate body 231 in the Z-axis direction. The first end surface 2313 and the second end surface 2314 of the first support plate body 231 can be two surfaces of the first support plate body 231 in the Y-axis direction. The bottom surface 2312 of the first support plate body 231 faces the main shaft 1 when the folding mechanism 100 is in a flattened state.

[0202] like Figure 10 and Figure 11 As shown, the first support plate body 231 is provided with a clearance space 234. The clearance space 234 of the first support plate body 231 can form an opening on the bottom surface 2312 and the second end surface 2314 of the first support plate body 231. In this case, the clearance space 234 of the first support plate body 231 includes a first wall surface 2341. The first wall surface 2341 of the first support plate body 231 is disposed opposite to the first end surface 2313 of the first support plate body 231. In other embodiments, the clearance space 234 of the first support plate body 231 may also form an opening only on the bottom surface 2312 of the first support plate body 231. This embodiment does not specifically limit the specific structure of the clearance space 234 of the first support plate body 231.

[0203] like Figure 10 and Figure 11 As shown, an arc-shaped block 232 of the first support plate 23 protrudes from the first end face 2313 of the first support plate body 231. An arc-shaped block 232 of the first support plate 23 also protrudes from the first wall surface 2341 of the clearance space 234 of the first support plate body 231. It is understood that the implementation of the arc-shaped block 232 of the first support plate 23 protruding from the first support plate body 231 is not limited to the implementation described above. In other implementations, the manner in which the arc-shaped block 232 of the first support plate 23 protrudes from the first support plate body 231 is not specifically limited.

[0204] like Figure 10 and Figure 11As shown, the first support plate 23 is provided with a first rotation space 235. Exemplarily, the first rotation space 235 may have an opening formed on the top surface 2311 of the first support plate body 231. In this case, the first rotation space 235 can be a groove structure. In other embodiments, the first rotation space 235 may have openings formed on both the top surface 2311 and the bottom surface 2312 of the first support plate body 231. In this case, the first rotation space 235 can be a through-hole structure.

[0205] For example, the first rotation space 235 of the first support plate 23 may include a first sidewall 2351 and a second sidewall 2352 disposed opposite to each other. Both the first sidewall 2351 and the second sidewall 2352 of the first rotation space 235 of the first support plate 23 are provided with pivot holes 2353. The pivot holes 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23 are disposed opposite to the pivot holes 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23.

[0206] It is understood that the number of first rotation spaces 235 of the first support plate 23 in this embodiment is not limited to... Figure 10 and Figure 11 Two are shown. In other embodiments, the number of first rotation spaces 235 of the first support plate 23 is not specifically limited.

[0207] For example, the first rotation space 235 of the first support plate 23 can be located on one side of the arcuate block 232 of the first support plate 23 in the X-axis direction.

[0208] like Figure 10 and Figure 11 As shown, exemplarily, the first support plate 23 also includes a second rotation space 236. Exemplarily, the second rotation space 236 may have openings formed on the top surface 2311 and bottom surface 2312 of the first support plate body 231. In this case, the second rotation space 236 can be a through-hole structure. In other embodiments, the second rotation space 236 may have an opening formed on the bottom surface 2312 of the first support plate body 231. In this case, the second rotation space 236 can be a groove structure.

[0209] For example, the second rotation space 236 of the first support plate 23 may include a first sidewall 2361 and a second sidewall 2362 disposed opposite to each other. Both the first sidewall 2361 and the second sidewall 2362 of the second rotation space 236 of the first support plate 23 are provided with pivot holes 2363. The pivot holes 2363 of the first sidewall 2361 of the second rotation space 236 of the first support plate 23 are disposed opposite to the pivot holes 2363 of the second sidewall 2362 of the second rotation space 236 of the first support plate 23.

[0210] For example, the pivot hole 2363 of the first sidewall 2361 of the second rotation space 236 of the first support plate 23, the pivot hole 2363 of the second sidewall 2362 of the second rotation space 236 of the first support plate 23, the pivot hole 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23, and the pivot hole 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23 can be in the same straight line.

[0211] For example, the slider 233 of the first support plate 23 includes a first connecting portion 2331 and a second connecting portion 2332. For example, in the Y-axis direction, the length of the first connecting portion 2331 of the slider 233 of the first support plate 23 is greater than the length of the second connecting portion 2332 of the slider 233 of the first support plate 23. At this time, in the Y-axis direction, the first connecting portion 2331 of the slider 233 of the first support plate 23 extends through both sides of the second connecting portion 2332 of the slider 233 of the first support plate 23.

[0212] like Figure 10 and Figure 11 As shown, the slider 233 of the first support plate 23 protrudes from one side of the first support plate body 231. Exemplarily, the first connecting portion 2331 of the slider 233 of the first support plate 23 is connected to the first support plate body 231.

[0213] For example, the slider 233 of the first support plate 23 can be located in the X-axis direction on the side of the first rotation space 235 of the first support plate 23 away from the arcuate block 232 of the first support plate 23.

[0214] It is understood that the second support plate 24 and the first support plate 23 can have the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the second support plate 24 and the first support plate 23 can have symmetrical structure. The basic design of the component structure of the second support plate 24, the design of the connection relationship between components, and the design of the connection relationship between components and other structures besides the assembly can all refer to the relevant scheme of the first support plate 23. For example, the second support plate 24 includes a second support plate body 241, an arc block 242, a slider 243, a clearance space 244, a first rotation space 245, and a second rotation space 246. At the same time, it is permissible for the second support plate 24 and the first support plate 23 to have slight differences in the detailed structure or positional arrangement of the components. Specific details will not be elaborated here.

[0215] Figure 12 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 1 . Figure 13 yes Figure 12The partial cross-sectional view of one embodiment of the partially folding mechanism 100 at line DD is shown. Figure 14 yes Figure 12 The diagram shows a partial cross-sectional view of the folding mechanism 100 in a folded state.

[0216] Please see Figures 12 to 14 and combined Figure 8 , Figure 10 and Figure 11 As shown, the first support plate 23 is rotatably connected to the main shaft 1.

[0217] For example, the arc-shaped block 232 of the first support plate 23 is disposed in the first arc-shaped groove 11 of the main shaft 1. Through the relative movement of the two, the first support plate 23 and the main shaft 1 form a rotatable connection structure through the cooperation of the arc-shaped block and the arc-shaped groove, that is, the first support plate 23 and the main shaft 1 can be rotatably connected through a virtual axis.

[0218] In this embodiment, the number of arc-shaped blocks 232 of the first support plate 23 and the number of first arc-shaped grooves 11 of the main shaft 1 are both two. The two arc-shaped blocks 232 of the first support plate 23 are arranged in the two first arc-shaped grooves 11 of the main shaft 1 in a one-to-one correspondence.

[0219] In other embodiments, the first support plate 23 and the main shaft 1 can also be rotatably connected via a solid shaft. In this case, the connection between the first support plate 23 and the main shaft 1 is reliable, with minimal rotational play, and the rotational action is precise and stable.

[0220] In other embodiments, the rotational connection structure between the first support plate 23 and the main shaft 1 can be entirely composed of solid shafts, entirely composed of virtual shafts, or a combination of solid shafts and virtual shafts. This application does not impose strict limitations on this.

[0221] It is understood that the first rotation space 235 of the first support plate 23 can be located on the side of the arcuate block 232 of the first support plate 23 away from the main shaft 1. The first rotation space 245 of the second support plate 24 can be located on the side of the arcuate block 242 of the second support plate 24 away from the main shaft 1.

[0222] Please see Figures 12 to 14 and combined Figure 8 , Figure 10 and Figure 11 As shown, the second support plate 24 is rotatably connected to the main shaft 1. It can be understood that the connection method between the second support plate 24 and the main shaft 1 can be referenced to the connection method between the first support plate 23 and the main shaft 1. Specific details will not be elaborated here.

[0223] Please see Figure 12 and Figure 13When the folding mechanism 100 is in the flattened state, the first support plate 23 and the second support plate 24 are joined together to form part of the support surface 100a. At this time, the first support plate 23 and the second support plate 24 are close to each other, and the distance between them is small. It can be understood that when the folding mechanism 100 is in the flattened state, the top surface 2311 of the first support plate body 231 faces away from the main shaft 1. The top surface 2411 of the second support plate body 241 faces away from the main shaft 1.

[0224] The splicing of the first support plate 23 and the second support plate 24 may include, but is not limited to, the following scenarios: a part of the first support plate 23 and a part of the second support plate 24 are in contact with each other without gaps, while another part of the first support plate 23 and another part of the second support plate 24 may form a gap or seam; or, the first support plate 23 and the second support plate 24 are in contact with each other without gaps; or, a part of the first support plate 23 and a part of the second support plate 24 are close to each other with small gaps between them, while another part of the first support plate 23 and another part of the second support plate 24 may form a gap or seam; or, the first support plate 23 and the second support plate 24 are close to each other with small gaps between them. It is understandable that when there is a small gap between the first support plate 23 and the second support plate 24, or a small gap between a part of the first support plate 23 and a part of the second support plate 24, the user can press the flexible screen 200 in the area corresponding to the gap, and no obvious pit will appear in the corresponding area of ​​the flexible screen 200. The first support plate 23 and the second support plate 24 can provide strong support for the flexible screen 200.

[0225] When there is a gap or slit between the first support plate 23 and the second support plate 24, or a gap or slit between a part of the first support plate 23 and a part of the second support plate 24, the area of ​​the gap or slit can be minimized by optimizing the component size and shape of the folding mechanism 100. This allows the area of ​​the flexible screen 200 corresponding to the gap or slit to sink slightly under the user's pressure, but without producing an obvious dent.

[0226] Please see Figures 12 to 14 and combined Figure 8 , Figure 10 and Figure 11 As shown, exemplarily, at least a portion of the first support plate body 231 is disposed within the inner space 10 and is rotatable within the inner space 10. In this way, the first support plate 23 can utilize the internal space of the main shaft 1, thereby facilitating a thinner design of the folding mechanism 100.

[0227] For example, at least a portion of the second support plate body 241 is disposed within the inner space 10 and is rotatable within the inner space 10. In this way, the second support plate 24 can utilize the internal space of the main shaft 1, thereby facilitating a thinner configuration of the folding mechanism 100.

[0228] like Figure 13 As shown, exemplarily, when the folding mechanism 100 is in a flattened state, the first support plate 23 and the second support plate 24 together cover the entire main shaft 1. In this way, the first support plate 23 and the second support plate 24 are arranged more compactly, which is conducive to the miniaturization of the folding mechanism 100.

[0229] like Figure 13 As shown, exemplarily, when the folding mechanism 100 is in a flattened state, the arc-shaped block 232 of the first support plate 23 rotates into the first arc-shaped groove 11 of the main shaft 1, the arc-shaped block 242 of the second support plate 24 rotates into the second arc-shaped groove 12 of the main shaft 1, most of the body of the first support plate 231 rotates into the inner space 10, and most of the body of the second support plate 241 rotates into the inner space 10.

[0230] like Figure 14 As shown, when the folding mechanism 100 is in the folded state, the first support plate body 231 of the first support plate 23 and the second support plate body 241 of the second support plate 24 are arranged opposite to each other, and the first support plate body 231, the second support plate body 241 and the main shaft 1 together enclose a part of the accommodating space 100b.

[0231] like Figure 14 As shown, exemplarily, when the folding mechanism 100 is in the folded state, a portion of the first support plate body 231 is located within the inner space 10 of the main shaft 1, and a portion of the second support plate body 241 is located within the inner space 10 of the main shaft 1.

[0232] like Figure 14 As shown, exemplarily, when the folding mechanism 100 is in the folded state, both the first support plate 23 and the second support plate 24 are inclined relative to the main shaft 1, and the first support plate 23 and the second support plate 24 are close to each other in the direction close to the main shaft 1. It can be understood that when the folding mechanism 100 is in the folded state, the first support plate 23 and the second support plate 24 form an angle, and the first support plate 23 and the second support plate 24 can roughly present an upright "V" shape.

[0233] like Figure 14As shown, exemplarily, when the folding mechanism 100 is in the folded state, the first support plate 23 and the second support plate 24 respectively cover the two sides of the main shaft 1. Thus, compared to a scheme where the first support plate 23 and the second support plate 24 do not cover the two sides of the main shaft 1 when the folding mechanism 100 is in the folded state, the arrangement of the first support plate 23 and the second support plate 24 in this embodiment is more compact, thereby facilitating the miniaturization of the folding mechanism 100.

[0234] like Figure 14 As shown, exemplarily, when the folding mechanism 100 is in the folded state, the arc-shaped block 232 portion of the first support plate 23 rotates out of the first arc-shaped groove 11 of the main shaft 1, and the arc-shaped block portion of the second support plate 24 rotates out of the second arc-shaped groove 12 of the main shaft 1. A portion of the first support plate body 231 rotates out of the inner space 10, and a portion of the second support plate body 241 rotates out of the inner space 10.

[0235] Figure 15 yes Figure 9 A schematic diagram of one embodiment of the third support plate 25 and the fourth support plate 26 shown. Figure 16 yes Figure 9 The diagram shows the structure of the third support plate 25 and the fourth support plate 26 at another angle.

[0236] like Figure 15 and Figure 16 As shown, exemplarily, the third support plate 25 includes a third support plate body 251, a pivot block 252, and an arc-shaped block 253. It is understood that the third support plate 25 can be a one-piece molded structural component to achieve high structural strength. Figure 15 , Figure 16 The accompanying drawings below only schematically illustrate some components of the third support plate 25; the actual shape, size, position, and construction of these components are not subject to change. Figure 15 , Figure 16 As well as the accompanying drawings below. In addition, when the third support plate 25 has some other form, the first support plate 23 may not include the pivot block 252 and / or the arc block 253.

[0237] It is understandable that the number of pivot blocks 252 and the number of arc-shaped blocks 253 of the third support plate 25 are not limited to the following. Figure 15 and Figure 16 The two shown are for illustrative purposes only. In other embodiments, the number of pivot blocks 252 of the third support plate 25 and the number of arc-shaped blocks 253 of the third support plate 25 are not specifically limited.

[0238] like Figure 15 and Figure 16As shown, exemplarily, the third support plate body 251 includes a top surface 2511 and a bottom surface 2512 disposed opposite to each other, and a first side surface 2513 and a second side surface 2514 disposed opposite to each other. The top surface 2511 and the bottom surface 2512 of the third support plate body 251 are connected between the first side surface 2513 and the second side surface 2514. In other embodiments, the third support plate body 251 may also adopt other forms; for example, the third support plate body 251 may not include the first side surface 2513 and the second side surface 2514. In this case, the top surface 2511 and the bottom surface 2512 of the third support plate body 251 are connected to each other.

[0239] like Figure 15 and Figure 16 As shown, the pivot block 252 of the third support plate 25 is provided with a pivot hole 254. The pivot block 252 of the third support plate 25 protrudes from the third support plate body 251. The pivot block 252 of the third support plate 25 protrudes from one side of the third support plate body 251. For example, the pivot block 252 of the third support plate 25 protrudes from the first side surface 2513 of the third support plate body 251. In other embodiments, the pivot block 252 of the third support plate 25 protrudes from the bottom surface 2512 of the third support plate body 251 and protrudes from the first side surface 2513 of the third support plate body 251. This embodiment does not specifically limit this aspect.

[0240] For example, the pivot block 252 of the third support plate 25 can be semi-cylindrical, that is, part of the outer surface of the pivot block 252 of the third support plate 25 is arc surface and part is flat surface.

[0241] like Figure 15 and Figure 16 As shown, exemplarily, the arc-shaped block 253 of the third support plate 25 protrudes from the third support plate body 251. The arc-shaped block 253 of the third support plate 25 protrudes from the side of the third support plate body 251 away from the pivot block 252 of the third support plate 251. Exemplarily, the arc-shaped block 253 of the third support plate 25 protrudes from the bottom surface 2512 of the third support plate body 251 and protrudes from the second side surface 2514 of the third support plate body 251. In other embodiments, the arc-shaped block 253 of the third support plate 25 protrudes from the second side surface 2514 of the third support plate body 251. This embodiment does not specifically limit this aspect.

[0242] It is understood that the fourth support plate 26 and the third support plate 25 can have the same or similar structures, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the fourth support plate 26 and the third support plate 25 are symmetrical structures. The basic design of the component structure of the fourth support plate 26, the design of the connection relationship between components, and the design of the connection relationship between components and other structures besides the assembly can all refer to the relevant scheme of the third support plate 25. For example, the fourth support plate 26 includes a fourth support plate body 261, a pivot block 262, and an arc-shaped block 263. In addition, slight differences in the detailed structure or positional arrangement of components are allowed between the fourth support plate 26 and the third support plate 25. Specific details will not be elaborated here.

[0243] Figure 17 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism 100 shown. Figure 2 . Figure 18 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 2 . Figure 19 yes Figure 18 The diagram shows a partial folding mechanism 100 in a folded state.

[0244] Please see Figures 17 to 19 and combined Figure 10 , Figure 11 , Figure 15 and Figure 16 As shown, the third support plate 25 is rotatably connected to the first support plate 23.

[0245] For example, the pivot block 252 of the third support plate 25 can be located within the first rotation space 235 of the first support plate 23. The pivot hole 254 of the pivot block 252 of the third support plate 25 can be located between the pivot hole 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23 and the pivot hole 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23. The pivot hole 254 of the pivot block 252 of the third support plate 25 is arranged opposite to the pivot hole 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23 and the pivot hole 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23.

[0246] In this embodiment, the number of pivot blocks 252 of the third support plate 25 and the number of first rotation spaces 235 of the first support plate 23 are both two. The two pivot blocks 252 of the third support plate 25 are arranged in the two first rotation spaces 235 of the first support plate 23 in a one-to-one correspondence.

[0247] For example, the first connecting assembly 2 further includes a first rotating shaft 20a. The first rotating shaft 20a passes sequentially through the rotating shaft hole 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23, the rotating shaft hole 254 of the rotating shaft block 252 of the third support plate 25, and the rotating shaft hole 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23. In one embodiment, the two ends of the first rotating shaft 20a can be fixed in the rotating shaft hole 2353 of the first sidewall 2351 of the first rotation space 235 of the first support plate 23 and the rotating shaft hole 2353 of the second sidewall 2352 of the first rotation space 235 of the first support plate 23, respectively. The middle part of the first rotating shaft 20a can rotate relative to the hole wall of the rotating shaft hole 254 of the rotating shaft block 252 of the third support plate 25.

[0248] In other embodiments, the third support plate 25 can also be rotatably connected to the first support plate 23 via other rotational methods. For example, the third support plate 25 and the first support plate 23 can form a rotatable connection structure through the cooperation of an arc-shaped block and an arc-shaped groove, that is, the third support plate 25 and the first support plate 23 can be rotatably connected via a virtual axis. It is understood that the structure of rotatable connection via a virtual axis is simple, occupies little space, and is conducive to reducing the thickness of the folding mechanism 100, making it easier to achieve a thinner and lighter design for the folding mechanism 100 and the electronic device 1000.

[0249] In other embodiments, the rotational connection structure between the third support plate 25 and the first support plate 23 can be entirely composed of solid shafts, entirely composed of virtual shafts, or a combination of solid shafts and virtual shafts. This application does not impose strict limitations on this.

[0250] Please see Figures 17 to 19 and combined Figure 10 , Figure 11 , Figure 15 and Figure 16 As shown, the fourth support plate 26 is rotatably connected to the second support plate 24. It can be understood that the connection method between the fourth support plate 26 and the second support plate 24 can be referenced to the connection method between the third support plate 25 and the first support plate 23. For example, the fourth support plate 26 can be rotatably connected to the second support plate 24 via a second rotating shaft 20b. The rotating shaft block 262 of the fourth support plate 26 can be located within the first rotation space 245 of the second support plate 24. The second rotating shaft 20b can be disposed in the rotating shaft hole 264 of the rotating shaft block 262 of the fourth support plate 26 and the rotating shaft hole 2453 of the first rotation space 245 of the second support plate 24. Specific details will not be elaborated here.

[0251] Please see Figure 17 and Figure 18When the folding mechanism 100 is in the flattened state, the third support plate 25, the first support plate 23, the second support plate 24, and the fourth support plate 26 are sequentially spliced ​​together to form the support surface 100a. At this time, the first support plate 23 and the second support plate 24 are close to each other, and the distance between them is small. The first support plate 23 and the third support plate 25 are close to each other, and the distance between them is small. The second support plate 24 and the fourth support plate 26 are close to each other, and the distance between them is small. It is understood that the explanation of the splicing of the first support plate 23 and the third support plate 25, and the explanation of the splicing of the second support plate 24 and the fourth support plate 26, can be found in the explanation of the splicing of the first support plate 23 and the second support plate 24. Specific details will not be elaborated here. It is understood that the top surface 2511 of the third support plate body 251 faces away from the main shaft 1. The top surface 2611 of the fourth support plate body 261 faces away from the main shaft 1.

[0252] In one implementation, such as Figure 17 and Figure 18 As shown, when the folding mechanism 100 is in the flattened state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 are flush. In other words, when the folding mechanism 100 is in the flattened state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 are used to make the flexible screen 200 present a flat shape. At this time, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 can provide a flat and strong support for the flexible screen 200, thereby improving the user's touch operation, screen viewing, and other experiences.

[0253] like Figure 19 As shown, exemplarily, when the folding mechanism 100 is in the folded state, the first support plate 23, the second support plate 24, the third support plate 25 and the fourth support plate 26 are all located on one side of the main shaft 1, and the first support plate 23 and the second support plate 24 are arranged opposite to each other, and the third support plate 25 and the fourth support plate 26 are also arranged opposite to each other. The first support plate 23, the second support plate 24, the third support plate 25, the fourth support plate 26 and the main shaft 1 enclose at least a portion of the accommodating space 100b.

[0254] For example, when the folding mechanism 100 is in the folded state, a portion of the first support plate 23 is located in the inner space 10 of the main shaft 1, and a portion of the second support plate 24 is located in the inner space 10. At this time, a portion of the space in the inner space 10 of the main shaft 1 located between the first support plate 23 and the second support plate 24 is released, forming part of the accommodating space 100b, thereby improving space utilization and making the component arrangement of the electronic device 1000 more compact, which is beneficial to the miniaturization of the electronic device 1000.

[0255] like Figure 19 As shown, exemplarily, when the folding mechanism 100 is in the folded state, the third support plate 25 and the fourth support plate 26 are also inclined relative to the main shaft 1, and the third support plate 25 and the fourth support plate 26 approach each other in a direction away from the main shaft 1. An angle is formed between the third support plate 25 and the fourth support plate 26, and the third support plate 25 and the fourth support plate 26 can roughly present an inverted "V" shape. In this way, the second display area 202 of the flexible screen 200 can be better brought closer to each other to a closed state under the action of the first support plate 23, the second support plate 24, the third support plate 25 and the fourth support plate 26, so as to bend into a teardrop shape.

[0256] Figure 20 yes Figure 9 The diagram shows a structural schematic of one embodiment of the first fixing frame 21 and the second fixing frame 22. Figure 21 yes Figure 9 The diagram shows the structure of the first fixing frame 21 and the second fixing frame 22 from another angle.

[0257] like Figure 20 and Figure 21 As shown, the first fixing frame 21 includes a top surface 211a, a bottom surface 211b, a first side surface 211c, and a second side surface 211d. The top surface 211a and the bottom surface 211b of the first fixing frame 21 are disposed opposite to each other. The first side surface 211c and the second side surface 211d of the first fixing frame 21 are disposed opposite to each other. The first side surface 211c and the second side surface 211d of the first fixing frame 21 are located between the top surface 211a and the bottom surface 211b of the first fixing frame 21. At least a portion of the top surface 211a of the first fixing frame 21 is inclined relative to the bottom surface 211b of the first fixing frame 21, that is, an angle is formed between the top surface 211a and the bottom surface 211b of the first fixing frame 21. The top surface 211a and the bottom surface 211b of the first fixing frame 21 are close to each other in the direction close to the first side surface 211c of the first fixing frame 21.

[0258] like Figure 20 and Figure 21 As shown, exemplarily, the first fixing frame 21 is provided with an arc-shaped groove 212. The number of arc-shaped grooves 212 can be one or more. When there are multiple arc-shaped grooves 212, the multiple arc-shaped grooves 212 can be arranged at intervals along the Y-axis direction.

[0259] For example, the arc-shaped grooves 212 of the first fixing frame 21 can all form openings on the top surface 211a of the first fixing frame 21.

[0260] like Figure 20 and Figure 21As shown, exemplarily, the first fixing frame 21 is also provided with a first movable space 213. Exemplarily, the first movable space 213 of the first fixing frame 21 can be spaced apart from the arcuate groove 212 of the first fixing frame 21.

[0261] For example, the first movable space 213 of the first fixing frame 21 may have openings formed on the top surface 211a and the first side surface 211c of the first fixing frame 21. The first movable space 213 of the first fixing frame 21 may be a groove structure. In other embodiments, the first movable space 213 of the first fixing frame 21 may also have an opening formed on the bottom surface 211b of the first fixing frame 21. The first movable space 213 of the first fixing frame 21 may be a through-hole structure.

[0262] like Figure 20 and Figure 21 As shown, by way of example, a first groove 214 is provided on one side wall of the first movable space 213 of the first fixed frame 21.

[0263] Exemplarily, in the direction from the second side 211d of the first fixing frame 21 towards the first side 211c of the first fixing frame 21, the extending direction of the first groove 214 of the first movable space 213 is close to the bottom surface 211b of the first fixing frame 21. It is understood that the inclined design of the first groove 214 of the first movable space 213 helps to reduce the thickness of the folding mechanism 100 and optimize the mechanism structure. In other embodiments, the arrangement of the first groove 214 of the first movable space 213 is not strictly limited in this application.

[0264] In other embodiments, the other side wall of the first movable space 213 of the first fixed frame 21 may also be provided with a first sliding groove 214. Specifically, this embodiment is not limited.

[0265] like Figure 20 and Figure 21 As shown, by way of example, the first fixing frame 21 is also provided with a second sliding groove 215. The second sliding groove 215 of the first fixing frame 21 can form openings on the top surface 211a and the bottom surface 211b of the first fixing frame 21. The second sliding groove 215 of the first fixing frame 21 can be located on one side of the first movable space 213 of the first fixing frame 21.

[0266] For example, the second slide groove 215 of the first fixing frame 21 can be inclined relative to the first side surface 211c of the first fixing frame 21, that is, the extending direction of the second slide groove 215 of the first fixing frame 21 forms an angle with the first side surface 211c of the first fixing frame 21. The second slide groove 215 of the first fixing frame 21 can also be inclined relative to the second side surface 211d of the first fixing frame 21, that is, the extending direction of the second slide groove 215 of the first fixing frame 21 forms an angle with the second side surface 211d of the first fixing frame 21. In the direction from the bottom surface 211b of the first fixing frame 21 to the top surface 211a of the first fixing frame 21, the extending direction of the second slide groove 215 of the first fixing frame 21 is close to the first side surface 211c of the first fixing frame 21. In other words, compared to the opening formed on the bottom surface 211b of the first fixed frame 21 by the second slide groove 215 of the first fixed frame 21, the opening formed on the top surface 211a of the first fixed frame 21 by the second slide groove 215 of the first fixed frame 21 is closer to the first side surface 211c of the first fixed frame 21.

[0267] like Figure 20 and Figure 21 As shown, exemplarily, the second slide groove 215 of the first fixing frame 21 includes a first sub-slot 2151 and a second sub-slot 2152. The second sub-slot 2152 communicates with the first sub-slot 2151. In the Y-axis direction, the length of the first sub-slot 2151 is greater than the length of the second sub-slot 2152.

[0268] It is understood that the second fixing frame 22 and the first fixing frame 21 can have the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the second fixing frame 22 and the first fixing frame 21 are symmetrical structures. The basic design of the component structure of the second fixing frame 22, the design of the connection relationship between components, and the design of the connection relationship between components and other structures besides the assembly can all refer to the relevant scheme of the first fixing frame 21. For example, the second fixing frame 22 also has an arc groove 222, a first movable space 223, a first sliding groove 224, and a second sliding groove 225. At the same time, it is permissible for the second fixing frame 22 and the first fixing frame 21 to have slight differences in the detailed structure or positional arrangement of components. Specific details will not be elaborated here.

[0269] Figure 22 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 3 . Figure 23 yes Figure 22 The diagram shows a partial folding mechanism 100 in a folded state.

[0270] Please see Figure 22 and Figure 23 and combined Figure 15 , Figure 16 , Figure 20 and Figure 21 As shown, the third support plate 25 is rotatably connected to the first fixed frame 21.

[0271] For example, the arc-shaped block 253 of the third support plate 25 is disposed in the arc-shaped groove 212 of the first fixing frame 21. Through the relative movement of the two, the third support plate 25 and the first fixing frame 21 form a rotating connection structure through the cooperation of the arc-shaped block and the arc-shaped groove, that is, the third support plate 25 and the first fixing frame 21 are rotatably connected through a virtual axis.

[0272] It is understandable that when there are two arc-shaped blocks 253 in the third support plate 25 and two arc-shaped grooves 212 in the first fixing frame 21, the two arc-shaped blocks 253 of the third support plate 25 are respectively arranged in the two arc-shaped grooves 212 of the first fixing frame 21.

[0273] In other embodiments, other structural arrangements can be used to allow the third support plate 25 to be rotatably connected to the first fixed frame 21 via a virtual axis. This application does not specifically limit the details.

[0274] In other embodiments, the third support plate 25 and the first fixed frame 21 can also be rotatably connected via a solid shaft. The connection between the second rotating part of the third support plate 25 and the first fixed frame 21 is reliable, with small rotational play, and the rotational action is precise and stable.

[0275] In other embodiments, the rotational connection structure between the third support plate 25 and the first fixed frame 21 can be entirely composed of solid shafts, entirely composed of virtual shafts, or a combination of solid shafts and virtual shafts. This application does not impose strict limitations on this.

[0276] Please see Figure 22 and Figure 23 and combined Figure 15 , Figure 16 , Figure 20 and Figure 21 As shown, the fourth support plate 26 is rotatably connected to the second fixed frame 22. It can be understood that the connection method between the fourth support plate 26 and the second fixed frame 22 can be referenced to the connection method between the third support plate 25 and the first fixed frame 21. Specific details will not be elaborated here.

[0277] like Figure 22As shown, in one embodiment, when the folding mechanism 100 is in a flattened state, the third support plate 25 covers a portion of the first fixing frame 21, and the fourth support plate 26 covers a portion of the second fixing frame 22. It is understood that the top surface 211a of the first fixing frame 21 faces the third support plate 25, and the first side surface 211c of the first fixing frame 21 faces the main shaft 1; the top surface 221a of the second fixing frame 22 faces the fourth support plate 26, and the first side surface 221c of the second fixing frame 22 faces the main shaft 1.

[0278] like Figure 23 As shown, in one embodiment, when the folding mechanism 100 is in the folded state, the first fixing frame 21 is located on the side of the third support plate 25 away from the fourth support plate 26, and the second fixing frame 22 is located on the side of the fourth support plate 26 away from the third support plate 25, with the first fixing frame 21 and the second fixing frame 22 close to each other.

[0279] Figure 24 yes Figure 9 The diagram shows a structural schematic of one embodiment of the first connector 27 and the second connector 28.

[0280] like Figure 24 As shown, the first connector 27 includes a rotating end 271, a connecting section 272, and a sliding end 273 connected in sequence. The connecting section 272 connects the rotating end 271 and the sliding end 273 of the first connector 27. The first connector 27 can be a one-piece molded structural component to achieve high structural strength. In other embodiments, the first connector 27 may not include the connecting section 272.

[0281] For example, the rotating end 271 of the first connector 27 is provided with a pivot hole 2711. The rotating end 271 of the first connector 27 may be cylindrical. In other embodiments, the rotating end 271 of the first connector 27 may also adopt other structures.

[0282] For example, the sliding end 273 of the first connector 27 may be generally slider-shaped. In other embodiments, the sliding end 273 of the first connector 27 may also adopt other structures.

[0283] For example, the connecting segment 272 of the first connector 27 includes a first portion 2721 and a second portion 2722. The first portion 2721 connects the rotating end 271 and the sliding end 273 of the first connector 27. The second portion 2722 protrudes from one side relative to the rotating end 271 of the first connector 27. It is understood that... Figure 2The illustration only shows the second portion 2722 protruding relative to the first connector 27's rotating end 271 in the negative Y-axis direction. In other embodiments, the second portion 2722 may also protrude relative to the first connector 27's rotating end 271 in other directions, for example, the second portion 2722 may protrude relative to the first connector 27's rotating end 271 in the negative Z-axis direction.

[0284] For example, the second portion 2722 of the connecting segment 272 of the first connector 27 is provided with a rotation space 274. The rotation space 274 of the first connector 27 includes a first sidewall 2741 and a second sidewall 2742 disposed opposite to each other. Both the first sidewall 2741 and the second sidewall 2742 of the rotation space 274 of the first connector 27 are provided with a pivot hole 2743. The pivot hole 2743 of the second sidewall 2742 of the rotation space 274 of the first connector 27 is disposed opposite to the pivot hole 2743 of the first sidewall 2741 of the rotation space 274 of the first connector 27. In other embodiments, when the connecting segment 272 of the first connector 27 adopts other structures, the rotation space 274 of the first connector 27 may also be provided at other positions of the connecting segment 272 of the first connector 27.

[0285] It is understood that the second connector 28 and the first connector 27 can have the same or similar structure, a symmetrical or partially symmetrical structure, or different structures. In this embodiment, the second connector 28 and the first connector 27 are symmetrical structures. The basic design of the component structure of the second connector 28, the design of the connection relationship between components, and the design of the connection relationship between the component and other structures besides the assembly can all refer to the relevant scheme of the first connector 27. For example, the second connector 28 includes a rotating end 281, a connecting section 282, and a sliding end 283. The connecting section 282 of the second connector 28 is provided with a rotation space 284, etc. At the same time, it is permissible for the second connector 28 and the first connector 27 to have slight differences in the detailed structure or positional arrangement of the components. Specific details will not be elaborated here.

[0286] Figure 25 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism 100 shown. Figure 3 . Figure 26 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 4 . Figure 27 yes Figure 26 The diagram shows a partial cross-sectional view of the folding mechanism 100 in a folded state.

[0287] Please see Figures 25 to 27 and combined Figure 8 and Figure 24 As shown, the rotating end 271 of the first connector 27 is rotatably connected to the main shaft 1.

[0288] For example, the rotating end 271 of the first connector 27 can be located within the first rotation space 13 of the spindle 1. The pivot hole 2711 of the rotating end 271 of the first connector 27 can be located between the pivot hole 133 of the first sidewall 131 of the first rotation space 13 of the spindle 1 and the pivot hole 133 of the second sidewall 132 of the first rotation space 13 of the spindle 1. The pivot hole 2711 of the rotating end 271 of the first connector 27 is disposed opposite to the pivot hole 133 of the first sidewall 131 and the pivot hole 133 of the second sidewall 132 of the first rotation space 13 of the spindle 1.

[0289] For example, the first connecting assembly 2 further includes a third rotating shaft 20c. The third rotating shaft 20c passes sequentially through the rotating shaft hole 133 of the first sidewall 131 of the first rotation space 13 of the main shaft 1, the rotating shaft hole 2711 of the rotating end 271 of the first connector 27, and the rotating shaft hole 133 of the second sidewall 132 of the first rotation space 13 of the main shaft 1. In one embodiment, the two ends of the third rotating shaft 20c can be fixed in the rotating shaft holes 133 of the first sidewall 131 and the second sidewall 132 of the first rotation space 13 of the main shaft 1, respectively. The middle part of the third rotating shaft 20c can rotate relative to the hole wall of the rotating end 271 of the first connector 27.

[0290] In other embodiments, the rotating end 271 of the first connector 27 can also be rotatably connected to the main shaft 1 through other rotational methods. For example, the rotating end 271 of the first connector 27 and the main shaft 1 can form a rotatable connection structure through the cooperation of an arc-shaped block and an arc-shaped groove, that is, the rotating end 271 of the first connector 27 and the main shaft 1 can be rotatably connected through a virtual axis. It is understood that the structure of rotatable connection through a virtual axis is simple, occupies little space, and is conducive to reducing the thickness of the folding mechanism 100, making it easier to achieve a thinner and lighter design for the folding mechanism 100 and the electronic device 1000.

[0291] Please see Figures 25 to 27 and combined Figure 8 and Figure 24 As shown, the rotating end 281 of the second connecting member 28 is rotatably connected to the main shaft 1. It can be understood that the connection method between the rotating end 281 of the second connecting member 28 and the main shaft 1 can be referenced to the connection method between the rotating end 271 of the first connecting member 27 and the main shaft 1. For example, the rotating end 281 of the second connecting member 28 is rotatably connected to the main shaft 1 via the fourth rotating shaft 20d. Specific details will not be elaborated here.

[0292] Please see Figures 25 to 27 and combined Figure 20 , Figure 21 and Figure 24As shown, the sliding end 273 of the first connector 27 is slidably connected to the first fixing frame 21.

[0293] For example, a portion of the sliding end 273 of the first connector 27 is located in the first movable space 213 of the first fixed frame 21, and a portion is located in the first groove 214 of the first movable space 213 of the first fixed frame 21. It is understood that the sliding end 273 of the first connector 27 can slide within the first movable space 213 of the first fixed frame 21 and the first groove 214 of the first movable space 213.

[0294] In other embodiments, the sliding end 273 of the first connector 27 can also be slidably connected to the first fixing frame 21 by other sliding methods.

[0295] Please see Figures 25 to 27 and combined Figure 20 , Figure 21 and Figure 24 As shown, the sliding end 283 of the second connector 28 is slidably connected to the second fixed frame 22. It can be understood that the connection method between the sliding end 283 of the second connector 28 and the second fixed frame 22 can be compared with the connection method between the sliding end 273 of the first connector 27 and the first fixed frame 21. For example, a portion of the sliding end 283 of the second connector 28 slides in the first movable space 223 of the second fixed frame 22, and a portion slides within the first groove 224 of the first movable space 223 of the second fixed frame 22. Specific details will not be elaborated here.

[0296] like Figure 26 As shown, exemplarily, when the folding mechanism 100 is in a flattened state, most of the sliding end 273 of the first connector 27 slides into the first active space 213 and the first slide groove 214 of the first fixing frame 21, and most of the sliding end 283 of the second connector 28 slides into the first active space 223 and the first slide groove 224 of the second fixing frame 22.

[0297] During the process of switching the folding mechanism 100 from the flat state to the folded state, the sliding end 273 of the first connector 27 slides away from the first fixed frame 21 relative to the first fixed frame 21, and the sliding end 283 of the second connector 28 slides away from the second fixed frame 22 relative to the second fixed frame 22.

[0298] like Figure 26 As shown, exemplarily, when the folding mechanism 100 is in the folded state, a portion of the sliding end 273 of the first connector 27 slides out of the first active space 213 and the first slide groove 214 of the first fixing frame 21, and a portion of the sliding end 283 of the second connector 28 slides out of the first active space 223 and the first slide groove 224 of the second fixing frame 22.

[0299] In one embodiment, the folding mechanism 100 further includes a synchronizing element (not shown). A portion of the synchronizing element is movably connected to the first connecting member 27, and a portion is movably connected to the second connecting member 28. The synchronizing element enables the first connecting member 27 and the second connecting member 28 to rotate synchronously during the movement of the folding mechanism 100. For example, the synchronizing element can be a gear set. This embodiment is not specifically limited to this.

[0300] In one embodiment, the folding mechanism 100 further includes a damping element (not shown). The damping element may be disposed on the main shaft 1. The damping element can apply a damping force to the first connecting member 27 and the second connecting member 28, thereby providing a certain resistance during the unfolding process of the folding mechanism 100 to enter the flattened state and during the folding process to release the flattened state, allowing the user to experience better mechanism operation. The damping element may be a cam structure, etc. Specifically, this embodiment is not limited.

[0301] Figure 28 yes Figure 6 Partial exploded view of one embodiment of the folding mechanism 100 shown. Figure 4 . Figure 29 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 5 . Figure 30 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 6 . Figure 31 yes Figure 30 The partial cross-sectional view of one embodiment of the partial folding mechanism 100 at line EE is shown. Figure 32 yes Figure 30 The cross-sectional view shown is of the folding mechanism 100 in a folded state.

[0302] like Figures 28 to 32 As shown, exemplarily, the first rotating joint 29a includes a bracket 291a, a first pin 292a, and a second pin 293a.

[0303] For example, the bracket 291a has a first pin hole 2911a and a second pin hole 2912a spaced apart. The first pin 292a can pass through the first pin hole 2911a of the bracket 291a. The second pin 293a can pass through the second pin hole 2912a of the bracket 291a. The bracket 291a is rotatably connected to the first pin 292a and the second pin 293a. In other words, the bracket 291a can rotate relative to the first pin 292a and the second pin 293a.

[0304] For example, the support 291a may be generally dumbbell-shaped.

[0305] like Figures 28 to 32 As shown, by way of example, the first support plate 23 is movably connected to the first connector 27 via a first revolute joint 29a. In one embodiment, the first support plate 23 is movably connected to the connecting segment 272 of the first connector 27 via the first revolute joint 29a.

[0306] In other embodiments, the connection method between the first support plate 23 and the first connector 27 is not specifically limited.

[0307] like Figures 28 to 32 As shown, a portion of the bracket 291a is located within the rotation space 274 of the connecting section 272 of the first connector 27. The first pin hole 2911a of the bracket 291a is located between the pivot hole 2743 of the first sidewall 2741 of the rotation space 274 of the first connector 27 and the pivot hole 2743 of the second sidewall 2742 of the rotation space 274 of the first connector 27. The first pin hole 2911a of the bracket 291a and the pivot holes 2743 of the first sidewall 2741 and the second sidewall 2742 of the rotation space 274 of the first connector 27 are all arranged opposite to each other.

[0308] For example, the first pin 292a passes sequentially through the pivot hole 2743 of the first sidewall 2741 of the rotation space 274 of the first connector 27, the first pin hole 2911a of the bracket 291a, and the pivot hole 2743 of the second sidewall 2742 of the rotation space 274 of the first connector 27. In one embodiment, both the first connector 27 and the bracket 291a are rotatable relative to the first pin 292a.

[0309] like Figures 28 to 32 As shown, a portion of the bracket 291a is located within the second rotation space 236 of the first support plate 23. The second pin hole 2912a of the bracket 291a is located between the pivot hole 2363 of the first side wall 2361 of the second rotation space 236 of the first support plate 23 and the pivot hole 2363 of the second side wall 2362 of the second rotation space 236 of the first support plate 23. The second pin hole 2912a of the bracket 291a is arranged opposite to the pivot holes 2363 of the first side wall 2361 and 2363 of the second side wall 2362 of the second rotation space 236 of the first support plate 23.

[0310] For example, the second pin 293a passes sequentially through the pivot hole 2363 of the first sidewall 2361 of the second rotation space 236 of the first support plate 23, the second pin hole 2912a of the bracket 291a, and the pivot hole 2363 of the second sidewall 2362 of the second rotation space 236 of the first support plate 23. In one embodiment, both the first support plate 23 and the bracket 291a can rotate relative to the second pin 293a.

[0311] like Figures 28 to 32 As shown, exemplarily, the second support plate 24 is connected to the second connector 28 via the second revolute joint 29b.

[0312] It is understood that the connection methods between the second support plate 24 and the second rotating joint 29b, and between the second rotating joint 29b and the second connecting member 28, can refer to the connection methods between the first support plate 23 and the first rotating joint 29a, and between the first rotating joint 29a and the first connecting member 27. Specific details will not be elaborated here. Furthermore, the second rotating joint 29b and the first rotating joint 29a can have the same or similar structures, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the second rotating joint 29b and the first rotating joint 29a are symmetrical structures. The basic design of the component structure of the second rotating joint 29b, the design of the connection relationships between components, and the design of the connection relationships between components and other structures besides the assembly can all refer to the relevant schemes of the first rotating joint 29a. At the same time, slight differences in the detailed structure or positional arrangement of components are allowed between the second rotating joint 29b and the first rotating joint 29a. Specific details will not be elaborated here.

[0313] Figure 33 yes Figure 7 A schematic diagram illustrating one embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1.

[0314] Please see Figure 33 and combined Figures 8 to 32As shown, the first support plate 23 is rotatably connected to the main shaft 1, the third support plate 25 is rotatably connected to the first support plate 23, and the third support plate 25 is rotatably connected to the first fixed frame 21. Furthermore, the rotating end 271 of the first connecting member 27 is rotatably connected to the main shaft 1. The sliding end 273 of the first connecting member 27 is slidably connected to the first fixed frame 21. In addition, the first support plate 23 is also rotatably connected to the first connecting member 27 via a first rotating joint 29a. Here, the rotation axis of the first support plate 23 rotatably connected to the main shaft 1 is defined as the first rotation axis P1. The rotation axis of the first connecting member 27 rotatably connected to the main shaft 1 is defined as the second rotation axis P2. The rotation axis of the first support plate 23 rotatably connected to the first rotating joint 29a is defined as the third rotation axis P3. The rotation axis of the third support plate 25 rotatably connected to the first support plate 23 is defined as the fourth rotation axis P4. The rotation axis of the first connecting member 27 rotatably connected to the first rotating joint 29a is defined as the fifth rotation axis P5. The rotation axis of the third support plate 25 rotatably connected to the first fixed frame 21 is defined as the sixth rotation axis P6. It can be understood that in... Figure 33 In this diagram, it is necessary to indicate the connection between two components by connecting them with a solid line. The connection point between two components is indicated by a circle, and the connection is a rotational connection. For any related simplified diagrams appearing below, please refer to the corresponding explanations here.

[0315] In this embodiment, the third rotation axis P3 and the fourth rotation axis P4 can be coaxial, meaning they are arranged in a coaxial manner. Thus, the third support plate 25 can be connected to the first rotating joint 29a via the first support plate 23. It is understood that compared to using other connection structures to connect the third support plate 25 to the first rotating joint 29a via the first support plate 23, this embodiment simplifies assembly and saves parts by setting the third rotation axis P3 and the fourth rotation axis P4 to be coaxial, thus simplifying the structure. In other embodiments, the third rotation axis P3 and the fourth rotation axis P4 may not be coaxial. In this case, other connection structures can be used to connect the third support plate 25 to the first rotating joint 29a via the first support plate 23. For example, the third support plate 25 can be directly connected to the first rotating joint 29a. Specific details will be described below with reference to the accompanying drawings.

[0316] In this embodiment, the folding mechanism 100 can be a crank-slider-connecting rod motion mechanism. The main motion of the folding mechanism 100 can consist of a primary motion and a secondary motion. The primary motion can be a four-bar linkage composed of the main shaft 1, the first support plate 23, the first connecting member 27, and the first revolute joint 29a. The secondary motion can be a slider-connecting rod motion mechanism composed of the first fixed frame 21, the third support plate 25, the first support plate 23, and the first revolute joint 29a. Through the primary and secondary motions, the folding mechanism 100 allows the first fixed frame 21 to have one degree of freedom relative to the main shaft 1 during its unfolding or folding process, thus determining the motion trajectory of the first fixed frame 21 relative to the main shaft 1. Specifically, during the unfolding or folding process of the folding mechanism 100, the motion of the first support plate 23, the third support plate 25, the first connecting member 27, and the first revolute joint 29a can constrain the motion trajectory of the first fixed frame 21, ensuring that the motion trajectory of the first fixed frame 21 relative to the main shaft 1 is determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the first support plate 23, the third support plate 25, the first connector 27, and the first rotary joint 29a can pull the first fixed frame 21 back to be closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the first support plate 23, the third support plate 25, the first connector 27, and the first rotary joint 29a can push the first fixed frame 21 out to be away from the main shaft 1.

[0317] Similarly, by setting a second support plate 24 rotatably connected to the main shaft 1, a fourth support plate 26 rotatably connected to the second support plate 24, a fourth support plate 26 rotatably connected to the second fixed frame 22, a rotating end 281 of the second connecting member 28 rotatably connected to the main shaft 1, and a sliding end 283 of the second connecting member 28 slidably connected to the second fixed frame 22, and the second support plate 24 is also rotatably connected to the second connecting member 28 via a second revolute joint. At this time, the motion of the four-bar linkage consisting of the main shaft 1, the second support plate 24, the second connecting member 28, and the second revolute joint can also form the first-order motion of the folding mechanism 100. The motion of the slider linkage consisting of the second support plate 24, the fourth support plate 26, the second fixed frame 22, and the second revolute joint 29b can also form the second-order motion of the folding mechanism 100. At this time, the folding mechanism 100 can achieve a first-order motion and a second-order motion, so that during the unfolding or folding process of the folding mechanism 100, the degree of freedom of the second fixed frame 22 relative to the main shaft 1 can be 1, and the motion trajectory of the second fixed frame 22 relative to the main shaft 1 can be determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, the second connector 28, and the second rotary joint can pull the second fixed frame 22 back to be closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, the second connector 28, and the second rotary joint can push the second fixed frame 22 out to be away from the main shaft 1.

[0318] Figure 34 yes Figure 5 A partial cross-sectional view of one embodiment of the electronic device 1000 at the FF line. Figure 35 yes Figure 3 A partial cross-sectional view of one embodiment of the electronic device 1000 shown at the GG line.

[0319] Please see Figure 34 and Figure 35 and combined Figures 8 to 32As shown, the first fixing frame 21 can be fixedly connected to the first housing 300. The second fixing frame 22 can be fixedly connected to the second housing 400. Exemplarily, the first fixing frame 21 can be connected to the first housing 300 by fasteners. The second fixing frame 22 can be connected to the second housing 400 by fasteners. Fasteners include, but are not limited to, screws, bolts, rivets, pins, etc. It is understood that since the first fixing frame 21 can be fixedly connected to the first housing 300, the first housing 300 can move with the first fixing frame 21, and the folding mechanism 100 can control the movement trajectory of the first housing 300 by controlling the movement trajectory of the first fixing frame 21. Furthermore, since the second fixing frame 22 can be fixedly connected to the second housing 400, the second housing 400 can move with the second fixing frame 22, and the folding mechanism 100 can control the movement trajectory of the second housing 400 by controlling the movement trajectory of the second fixing frame 22.

[0320] It is understandable that, since the first fixed frame 21 is fixedly connected to the first housing 300, the first support plate 23, the third support plate 25, the first connector 27, and the first rotating joint 29a can pull the first fixed frame 21 back to the main shaft 1, and can also push the first fixed frame 21 out to the main shaft 1, so that the first fixed frame 21 can pull the first housing 300 back to the main shaft 1, and can also push the first housing 300 out to the main shaft 1, that is, the first fixed frame 21 can drive the first housing 300 to move inward and outward. Similarly, since the second fixed frame 22 can be fixedly connected to the second housing 400, the second support plate 24, the fourth support plate 26, the second connector 28 and the second rotating pair can pull the second fixed frame 22 back to the main shaft 1, and can also push the second fixed frame 22 out to the main shaft 1, so that the second fixed frame 22 can pull the second housing 400 back to the main shaft 1, and can also push the second housing 400 out to the main shaft 1. That is, the second fixed frame 22 can drive the second housing 400 to achieve inward and outward movements.

[0321] Understandably, when the electronic device 1000 switches from a flattened state to a folded state, the first housing 300 and the second housing 400 move closer together. The first housing 300 can drive the first fixing frame 21 to rotate relative to the main shaft 1 via the first support plate 23, the third support plate 25, the first connector 27, and the first rotating joint 29a. The second housing 400 can drive the second fixing frame 22 to rotate relative to the main shaft 1 via the second support plate 24, the fourth support plate 26, the second connector 28, and the second rotating joint. During the process of the first housing 300 and the second housing 400 unfolding relative to each other, the first fixing frame 21 can drive the first housing 300 to move away from the main shaft 1, and the second fixing frame 22 can drive the second housing 400 to move away from the main shaft 1. That is, the folding mechanism 100 can realize the inward pulling movement of the housing during the change from a flattened state to a folded state, and the outward pushing movement of the housing during the change from a folded state to a flattened state. Therefore, during the unfolding or folding process, the folding mechanism 100 can reduce the risk of pulling or squeezing the flexible screen 200, thereby protecting the flexible screen 200, improving the reliability of the flexible screen 200, and enabling the flexible screen 200 and the electronic device 1000 to have a longer service life.

[0322] In this embodiment, when the electronic device 1000 is in a flattened state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 of the folding mechanism 100 can collectively form a support surface 100a to support the second display area 202 of the flexible screen 200. At this time, the flexible screen 200 is less prone to dents under user pressure, which improves its lifespan and reliability, and also results in better lighting and shadow effects. Therefore, the folding mechanism 100 of this embodiment has superior product competitiveness.

[0323] Understandably, in one embodiment, when the electronic device 1000 is in a flattened state, the first support plate 23, the second support plate 24, and the main shaft 1 together form a support surface to support the second display area 202 of the flexible screen 200. In this solution, since the main shaft 1 needs to be connected to the first support plate 23 and the second support plate 24 through multiple connectors, the main shaft 1 needs to be provided with multiple clearance spaces to avoid the connectors or other components. These clearance spaces can be grooves or through holes. As a result, the surface of the main shaft 1 used to form the support surface is prone to pitting, meaning the flatness of the support surface is poor. In this case, the flexible screen 200 is prone to denting under user pressure, leading to problems such as screen 200 failure, which is detrimental to improving the service life and reliability of the flexible screen 200. In this embodiment, when the electronic device 1000 is in a flattened state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 of the folding mechanism 100 can be assembled together to form a support surface 100a to support the second display area 202 of the flexible screen 200. In this case, this embodiment no longer requires the main shaft 1 to support the second display area 202 of the flexible screen 200, thus avoiding problems such as screen 200 failure due to poor flatness of the main shaft 1. In other words, in this embodiment, the electronic device 1000 exhibits better service life and reliability of the flexible screen 200 when in a flattened state.

[0324] In this embodiment, because the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 have fewer connection points with other structures and the component mating relationships are relatively simple, the holes on the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 are fewer, and the structure is more regular. Thus, the support surface 100a formed by the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 has fewer holes, and the gaps between adjacent support plates are smaller, which is beneficial to the flatness of the support surface 100a, and consequently helps to improve the service life and reliability of the flexible screen 200.

[0325] In this embodiment, when the electronic device 1000 is in a folded state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26, together with the main shaft 1, form a receiving space 100b to accommodate the second display area 202 of the flexible screen 200. It is understood that during the folding process of the electronic device 1000, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 can automatically avoid each other to form the receiving space 100b. The first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 can stabilize the folding action of the flexible screen 200 and exert less pressure, thereby reducing the risk of damage to the flexible screen 200 due to excessive pressure from the folding mechanism 100, resulting in higher reliability of the flexible screen 200. Furthermore, when the electronic device 1000 is in a folded state, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 can stably support the second display area 202 of the flexible screen 200, thereby reducing the risk of damage to the flexible screen 200 due to free movement, and thus improving the service life and reliability of the flexible screen 200. Therefore, the folding mechanism 100 of this embodiment has better product competitiveness.

[0326] Figure 36 yes Figure 6 A partial structural diagram of one embodiment of the folding mechanism 100 shown. Figure 7 . Figure 37 yes Figure 36 The partial cross-sectional view of one embodiment of the partially folding mechanism 100 at line HH is shown. Figure 38 yes Figure 36 A schematic diagram illustrating one embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1.

[0327] like Figures 36 to 38 As shown, the first support plate 23 is also slidably connected to the first fixing frame 21. It can be understood that, in Figure 38 In the diagram, the dashed line connecting two components indicates that the connection between them is additional and not necessary. Furthermore, two squares in different directions illustrate the sliding connection between the first support plate 23 and the first fixing frame 21. For any related simplified diagrams appearing below, please refer to the explanations provided here.

[0328] For example, the slider 233 of the first support plate 23 is disposed within the second groove 215 of the first fixing frame 21. Through the relative movement of the two, the first support plate 23 and the first fixing frame 21 form a sliding connection structure through the cooperation of the slider and the groove. In other embodiments, the first support plate 23 may also be slidably connected to the first fixing frame 21 by other sliding methods.

[0329] In this embodiment, by providing a first support plate 23 that is also slidably connected to a first fixing frame 21, the first support plate 23 and the third support plate 25 (see [reference]) are positioned such that during the unfolding or folding of the folding mechanism 100, the first support plate 23 and the third support plate 25 (see [reference]) remain in contact with each other. Figure 34 and Figure 35 The movement of the first connecting member 27 and the first rotating joint 29a can better constrain the movement trajectory of the first fixed frame 21, making the movement trajectory of the first fixed frame 21 relative to the main shaft 1 more accurate. In this way, the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 can stabilize the folding action of the flexible screen 200 and reduce the compressive force, thereby helping to reduce the risk of damage to the flexible screen 200 due to excessive compression by the folding mechanism 100, resulting in higher reliability of the flexible screen 200.

[0330] For example, the first connecting portion 2331 of the slider 233 of the first support plate 23 is provided in the first sub-slot 2151 of the second slide groove 215 of the first fixed frame 21. The second connecting portion 2332 of the slider 233 of the first support plate 23 is provided in the second sub-slot 2152 of the second slide groove 215 of the first fixed frame 21. Understandably, since the length of the first connecting part 2331 is greater than the length of the second connecting part 2332 in the Y-axis direction, and the length of the first sub-slot 2151 is greater than the length of the second sub-slot 2152, the cooperation between the first connecting part 2331 and the first sub-slot 2151, and the cooperation between the second connecting part 2332 and the second sub-slot 2152, can better guide the movement direction of the slider 233 of the first support plate 23. This allows the first support plate 23, the second support plate 24, the third support plate 25, and the fourth support plate 26 to stabilize the folding action of the flexible screen 200 and reduce the squeezing force. This helps to reduce the risk of damage to the flexible screen 200 due to excessive squeezing by the folding mechanism 100, thus making the flexible screen 200 more reliable.

[0331] It is understood that by tilting the second groove 215 of the first fixing frame 21 relative to the first side 211c (or second side 211d) of the first fixing frame 21, when the first fixing frame 21 and the first support plate 23 cooperate, the first fixing frame 21 and the first support plate 23 can form a cooperative structure with oblique grooves. This allows the first housing 300 to apply pressure to the first fixing frame 21 when the electronic device 1000 is dropped or impacted. In this case, the first fixing frame 21 can distribute the energy of the drop impact to the first support plate 23 and the main shaft 1. This results in better drop impact performance of the folding mechanism 100, thereby improving the lifespan and reliability of the electronic device 1000.

[0332] For example, the second support plate 24 is also slidably connected to the second fixing frame 22. It can be understood that the connection method between the second support plate 24 and the second fixing frame 22 can be referred to the connection method between the first support plate 23 and the first fixing frame 21. Specific details will not be elaborated here.

[0333] Figure 39 yes Figure 36 A schematic diagram illustrating another embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1.

[0334] like Figure 39 As shown, the first support plate 23 is also rotatably connected to the first fixed frame 21. It is understandable that... Figure 39 In the schematic diagram, the connection between the first support plate 23 and the first fixing frame 21 is schematically represented by dashed lines. Furthermore, a small circle within a square indicates the rotatable connection between the first support plate 23 and the first fixing frame 21.

[0335] Understandably, by setting the first support plate 23 to be rotatably connected to the first fixed frame 21, the pressure exerted by the first housing 300 on the first fixed frame 21 when the electronic device 1000 is dropped or impacted can be distributed by the first fixed frame 21 to the first support plate 23 and the main shaft 1. This results in better drop impact performance of the folding mechanism 100, thereby improving the lifespan and reliability of the electronic device 1000.

[0336] For example, the second support plate 24 is also rotatably connected to the second fixing frame 22. It can be understood that the connection method between the second support plate 24 and the second fixing frame 22 can be referred to the connection method between the first support plate 23 and the first fixing frame 21. Specific details will not be elaborated here.

[0337] The preceding text described a specific embodiment of the folding mechanism 100. As can be seen from the preceding text, please refer to... Figure 33 and combined Figures 8 to 32As shown, a first support plate 23 is rotatably connected to the main shaft 1, a third support plate 25 is rotatably connected to the first support plate 23, the third support plate 25 is rotatably connected to the first fixed frame 21, the rotating end 271 of the first connecting member 27 is rotatably connected to the main shaft 1, and the sliding end 273 of the first connecting member 27 is slidably connected to the first fixed frame 21. The first support plate 23 is also rotatably connected to the first connecting member 27 via a first revolute joint 29a. Thus, the movement trajectory of the first fixed frame 21 is constrained by the movement of the first support plate 23, the third support plate 25, the first connecting member 27, and the first revolute joint 29a, thereby determining the movement trajectory of the first fixed frame 21 relative to the main shaft 1. Similarly, the movement trajectory of the second fixed frame 22 is constrained by the second support plate 24, the fourth support plate 26, and the second connecting member 28, thereby determining the movement trajectory of the second fixed frame 22 relative to the main shaft 1. Several specific embodiments of the folding structure will be described below with reference to the accompanying drawings. The folding mechanism 100 of this embodiment also allows the first fixed frame 21 and the second fixed frame 22 to have 1 degree of freedom of movement relative to the main shaft 1, which means that the movement trajectories of the first fixed frame 21 and the second fixed frame 22 relative to the main shaft 1 can be determined. It is understood that the technical content is largely the same as that described above, and this embodiment will not be described in detail.

[0338] Figure 40 yes Figure 7 A schematic diagram illustrating another embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1.

[0339] First implementation method: such as Figure 40 As shown, the first support plate 23 is rotatably connected to the main shaft 1, the third support plate 25 is rotatably connected to the first support plate 23, and the third support plate 25 is rotatably connected to the first fixed frame 21. Furthermore, the rotating end 271 of the first connecting member 27 is rotatably connected to the main shaft 1. The sliding end 273 of the first connecting member 27 is slidably connected to the first fixed frame 21. Additionally, the first support plate 23 is also slidably connected to the first fixed frame 21. It is understood that the methods of rotatably connecting the first support plate 23 to the main shaft 1, the methods of rotatably connecting the third support plate 25 to the first support plate 23, the methods of rotatably connecting the third support plate 25 to the first fixed frame 21, the methods of rotatably connecting the rotating end 271 of the first connecting member 27 to the main shaft 1, the methods of slidably connecting the sliding end 273 of the first connecting member 27 to the first fixed frame 21, and the methods of slidably connecting the first support plate 23 to the first fixed frame 21 in this embodiment can all be referred to the relevant content and related figures above. Figures 8 to 37), details will not be elaborated here. Furthermore, unlike the previous embodiment, in this embodiment, the first support plate 23 is no longer rotatably connected to the first connector 27 via the first rotating joint 29a, but is directly slidably connected to the first fixing frame 21. In this embodiment, the first connector 27 may not include the connecting segment 272. Of course, in this embodiment, the first connector 27 may continue to include the connecting segment 272.

[0340] Specifically, the first rotation axis P1 is defined as the axis of rotation of the main shaft 1 rotatably connected to the first support plate 23. The second rotation axis P2 is defined as the axis of rotation of the main shaft 1 rotatably connected to the first connector 27. The third rotation axis P3 is defined as the axis of rotation of the first support plate 23 rotatably connected to the third support plate 25. The fourth rotation axis P4 is defined as the axis of rotation of the first fixed frame 21 rotatably connected to the third support plate 25.

[0341] In this embodiment, the folding mechanism 100 can be a slider-linkage motion mechanism. The main motion of the folding mechanism 100 can consist of a primary motion and a secondary motion. The primary motion can be the motion of a slider-linkage motion mechanism composed of a main shaft 1, a first support plate 23, a first connecting member 27, and a first fixed frame 21. The secondary motion can be the motion of a linkage motion mechanism composed of a first support plate 23, a third support plate 25, and a first fixed frame 21. Through the primary and secondary motions, the folding mechanism 100 ensures that the first fixed frame 21 has one degree of freedom relative to the main shaft 1 during the unfolding or folding process, thus determining the motion trajectory of the first fixed frame 21 relative to the main shaft 1. Specifically, during the unfolding or folding process of the folding mechanism 100, the motion of the first support plate 23, the third support plate 25, and the first connecting member 27 can constrain the motion trajectory of the first fixed frame 21, thereby determining the motion trajectory of the first fixed frame 21 relative to the main shaft 1. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the first support plate 23, the third support plate 25, and the first connector 27 can pull the first fixing frame 21 back to be closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the first support plate 23, the third support plate 25, and the first connector 27 can push the first fixing frame 21 out to be away from the main shaft 1.

[0342] Similarly, combined Figure 31 and Figure 32As shown, during the unfolding or folding process of the folding mechanism 100, the movement of the second support plate 24, the fourth support plate 26, and the second connecting member 28 can constrain the movement trajectory of the second fixed frame 22, so that the movement trajectory of the second fixed frame 22 relative to the main shaft 1 can be determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, and the second connecting member 28 can pull the second fixed frame 22 back closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, and the second connecting member 28 can push the second fixed frame 22 away from the main shaft 1.

[0343] It is understood that the folding mechanism 100 of this embodiment realizes the connection between the first fixed frame 21 and the main shaft 1 and the connection between the second fixed frame 22 and the main shaft 1 through the linkage slider structure and the linkage structure. It has few components, simple matching relationship and matching position, and easy components to manufacture and assemble, which is conducive to mass production.

[0344] In other embodiments, in Figure 40 In this configuration, the first support plate 23 can be slidably connected to the first fixed frame 21, or it can be rotatably connected to the first fixed frame 21. Similarly, the second support plate 24 can be slidably connected to the second fixed frame 22, or it can be rotatably connected to the second fixed frame 22.

[0345] Figure 41 yes Figure 7 A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1. Figure 1 .

[0346] The second implementation method, such as Figure 41 As shown, the folding mechanism 100 also includes a third revolute joint 29c. The structure of the third revolute joint 29c can be found by referring to the structure of the first revolute joint 29a. Specific details will not be elaborated here.

[0347] like Figure 41As shown, the first support plate 23 is rotatably connected to the main shaft 1. The third support plate 25 is rotatably connected to the first fixed frame 21. The rotating end 271 of the first connector 27 is rotatably connected to the main shaft 1, and the sliding end 273 of the first connector 27 is slidably connected to the first fixed frame 21. The connecting section 272 of the first connector 27 is rotatably connected to the first support plate 23 through the first revolute joint 29a. The connecting section 272 of the first connector 27 is also rotatably connected to the third support plate 25 through the third revolute joint 29c. It can be understood that the ways in which the first support plate 23 is rotatably connected to the main shaft 1, the ways in which the third support plate 25 is rotatably connected to the first fixed frame 21, the ways in which the rotating end 271 of the first connector 27 is rotatably connected to the main shaft 1, the ways in which the sliding end 273 of the first connector 27 is slidably connected to the first fixed frame 21, and the ways in which the first support plate 23 is rotatably connected to the first connector 27 through the first revolute joint 29a can all be referred to the relevant content and related figures above. Figures 8 to 37 ), the specifics will not be elaborated here. Furthermore, the method by which the third support plate 25 is rotatably connected to the first connector 27 via the third revolute joint 29c can also be found in the preceding text (see [link]). Figures 28 to 32 The first support plate 23 is rotatably connected to the first connector 27 via a first revolute joint 29a. Details will not be elaborated here. Furthermore, unlike the previous embodiment, in this embodiment, the third support plate 25 is not rotatably connected to the first support plate 23; instead, the third support plate 25 is connected to the first connector 27 via a third revolute joint 29c. The method by which the third support plate 25 is connected to the first connector 27 via the third revolute joint 29c in this embodiment can be found in the preceding text. Figure 8 The first support plate 23 is rotatably connected to the first connector 27 via the first revolute joint 29a. Further details are omitted here.

[0348] In this embodiment, the rotation axis of the main shaft 1 rotatably connected to the first support plate 23 is defined as the first rotation axis P1. The rotation axis of the main shaft 1 rotatably connected to the first connector 27 is defined as the second rotation axis P2. The rotation axis of the first rotating pair 29a rotatably connected to the first support plate 23 is defined as the third rotation axis P3. The rotation axis of the third rotating pair 29c rotatably connected to the third support plate 25 is defined as the fourth rotation axis P4. The rotation axis of the first rotating pair 29a rotatably connected to the first connector 27 is defined as the fifth rotation axis P5. The rotation axis of the third rotating pair 29c rotatably connected to the first connector 27 is defined as the sixth rotation axis P6. The rotation axis of the first fixed frame 21 rotatably connected to the third support plate 25 is defined as the seventh rotation axis P7. Exemplarily, the fifth rotation axis P5 and the sixth rotation axis P6 can be on the same straight line, that is, the fifth rotation axis P5 and the sixth rotation axis P6 are coaxially arranged. It is understood that this embodiment can save parts, thereby reducing the number of parts and simplifying the structure. In other embodiments, Figure 42 yes Figure 7A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1. Figure 1 .like Figure 42 As shown, the fifth rotation axis P5 and the sixth rotation axis P6 may not be on the same straight line.

[0349] In this embodiment, the folding mechanism 100 can be a crank-slider-connecting rod motion mechanism. The main motion of the folding mechanism 100 can consist of a primary motion and a secondary motion. The primary motion can be the motion of a first four-bar linkage composed of a main shaft 1, a first support plate 23, a first connecting member 27, and a first revolute joint 29a. The secondary motion can be the motion of a second four-bar linkage composed of a third support plate 25, a first fixed frame 21, a third revolute joint 29c, and a first connecting member 27. Through the primary and secondary motions, the folding mechanism 100 allows the first fixed frame 21 to have one degree of freedom relative to the main shaft 1 during its unfolding or folding process, thus ensuring that the trajectory of the first fixed frame 21 relative to the main shaft 1 is determined. Specifically, during the unfolding or folding process of the folding mechanism 100, the movement patterns of the first support plate 23, the third support plate 25, the first connector 27, the first rotary joint 29a, and the third rotary joint 29c can constrain the movement trajectory of the first fixed frame 21, so that the movement trajectory of the first fixed frame 21 relative to the main shaft 1 can be determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the first support plate 23, the third support plate 25, the first connector 27, the first rotary joint 29a, and the third rotary joint 29c can pull the first fixed frame 21 back closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the first support plate 23, the third support plate 25, the first connector 27, the first rotary joint 29a, and the third rotary joint 29c can push the first fixed frame 21 away from the main shaft 1.

[0350] Figure 43 yes Figure 7 A schematic diagram of another embodiment of the connection relationship between a portion of the first connecting component 2 and the spindle 1. Figure 2 .

[0351] like Figure 43 As shown, the folding mechanism 100 also includes a fourth revolute joint 29d. The structure of the fourth revolute joint 29d can be found by referring to the structure of the first revolute joint 29a. Specific details will not be elaborated here.

[0352] like Figure 43As shown, the second support plate 24 is rotatably connected to the main shaft 1. The fourth support plate 26 is rotatably connected to the second fixed frame 22. The rotating end 281 of the second connector 28 is rotatably connected to the main shaft 1. The sliding end 283 of the second connector 28 is slidably connected to the second fixed frame 22. The connecting section 282 of the second connector 28 is connected to the second support plate 24 through the second revolute joint 29b, and the connecting section 282 of the second connector 28 is also connected to the fourth support plate 26 through the fourth revolute joint 29d.

[0353] It is understood that the following methods in this embodiment—such as the rotational connection of the second support plate 24 to the main shaft 1, the rotational connection of the fourth support plate 26 to the second fixed frame 22, the rotational connection of the rotating end 281 of the second connector 28 to the main shaft 1, the sliding connection of the sliding end 283 of the second connector 28 to the second fixed frame 22, and the connection of the connecting section 282 of the second connector 28 to the second support plate 24 via the second rotating joint 29b—can all be found in the relevant content and accompanying drawings above. Figures 8 to 37 ), details will not be elaborated here. Furthermore, the connection segment 282 of the second connector 28 is also connected to the fourth support plate 26 via the fourth revolute joint 29d, as can be seen above (see [link to previous text]). Figures 28 to 32 The first support plate 23 is rotatably connected to the first connector 27 via the first revolute joint 29a. Details will not be elaborated here. Furthermore, unlike the previous embodiment, in this embodiment, the fourth support plate 26 is no longer rotatably connected to the second support plate 24; instead, the fourth support plate 26 is connected to the connecting segment 282 of the second connector 28 via the fourth revolute joint 29d.

[0354] Specifically, the rotation axis of the second support plate 24 rotatably connected to the main shaft 1 is defined as the eighth rotation axis P8. The rotation axis of the second connector 28 rotatably connected to the main shaft 1 is defined as the ninth rotation axis P9. The rotation axis of the second support plate 24 rotatably connected to the second rotating pair 29b is defined as the tenth rotation axis P10. The rotation axis of the fourth support plate 26 rotatably connected to the fourth rotating pair 29d is defined as the eleventh rotation axis P11. The rotation axis of the second connector 28 rotatably connected to the second rotating pair 29b is defined as the twelfth rotation axis P12. The rotation axis of the second connector 28 rotatably connected to the fourth rotating pair 29d is defined as the thirteenth rotation axis P13. The rotation axis of the fourth support plate 26 rotatably connected to the second fixed frame 22 is defined as the fourteenth rotation axis P14. Exemplarily, the twelfth rotation axis P12 and the thirteenth rotation axis P13 can be on the same straight line, that is, the twelfth rotation axis P12 and the thirteenth rotation axis P13 are coaxially arranged. In other embodiments, the twelfth rotation axis P12 and the thirteenth rotation axis P13 may not be on the same straight line.

[0355] Understandably, in combination Figure 31 and Figure 32As shown, during the unfolding or folding process of the folding mechanism 100, the movement of the second support plate 24, the fourth support plate 26, the second connector 28, the second rotary joint 29b, and the fourth rotary joint 29d can constrain the movement trajectory of the second fixed frame 22, so that the movement trajectory of the second fixed frame 22 relative to the main shaft 1 can be determined. Thus, during the transition from the flattened state to the folded state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, the second connector 28, the second rotary joint 29b, and the fourth rotary joint 29d can pull the second fixed frame 22 back closer to the main shaft 1. During the transition from the folded state to the flattened state of the folding mechanism 100, the second support plate 24, the fourth support plate 26, the second connector 28, the second rotary joint, and the fourth rotary joint 29d can push the second fixed frame 22 away from the main shaft 1.

[0356] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0357] It should be noted that all the above-described figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application. The above are merely some embodiments and implementation methods of this application, and 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 mechanism (100), characterized in that, It includes a main shaft (1), a first fixed frame (21), a second fixed frame (22), a first support plate (23), a second support plate (24), a third support plate (25), a fourth support plate (26), a first connector (27), a second connector (28), a first rotating joint (29a), and a second rotating joint (29b), wherein the main shaft (1) is located between the first fixed frame (21) and the second fixed frame (22); The first support plate (23) is rotatably connected to the main shaft (1), and the third support plate (25) is rotatably connected to the first support plate (23) and the first fixing frame (21); The first connector (27) includes a rotating end (271), a connecting section (272), and a sliding end (273) connected in sequence. The rotating end (271) of the first connector (27) is rotatably connected to the main shaft (1), and the sliding end (273) of the first connector (27) is slidably connected to the first fixing frame (21). The connecting section (272) of the first connector (27) is connected to the first support plate (23) through the first rotating pair (29a). The second support plate (24) is rotatably connected to the main shaft (1), and the fourth support plate (26) is rotatably connected to the second support plate (24) and the second fixing frame (22); The second connector (28) includes a rotating end (281), a connecting section (282), and a sliding end (283) connected in sequence. The rotating end (281) of the second connector (28) is rotatably connected to the main shaft (1), and the sliding end (283) of the second connector (28) is slidably connected to the second fixing frame (22). The connecting section (282) of the second connector (28) is connected to the second support plate (24) through the second rotating pair (29b).

2. The folding mechanism (100) according to claim 1, characterized in that, When the folding mechanism (100) is in a flattened state, the third support plate (25), the first support plate (23), the second support plate (24) and the fourth support plate (26) are sequentially spliced ​​together to form a support surface (100a); When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are arranged opposite to each other, the third support plate (25) and the fourth support plate (26) are arranged opposite to each other, and the main shaft (1), the first support plate (23), the second support plate (24), the third support plate (25) and the fourth support plate (26) enclose an accommodating space (100b).

3. The folding mechanism (100) according to claim 2, characterized in that, When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are both inclined relative to the main shaft (1), and the first support plate (23) and the second support plate (24) are close to each other in the direction close to the main shaft (1). The third support plate (25) and the fourth support plate (26) are also inclined relative to the main shaft (1), and the third support plate (25) and the fourth support plate (26) are close to each other in the direction away from the main shaft (1).

4. The folding mechanism (100) according to any one of claims 1 to 3, characterized in that, When the folding mechanism (100) is in a flattened state, the first support plate (23) and the second support plate (24) together cover the entire main shaft (1); When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) respectively cover the two sides of the main shaft (1).

5. The folding mechanism (100) according to any one of claims 1 to 4, characterized in that, The rotation axis of the first support plate (23) rotatably connected to the first rotating pair (29a) is on the same straight line as the rotation axis of the third support plate (25) rotatably connected to the first support plate (23).

6. The folding mechanism (100) according to any one of claims 1 to 5, characterized in that, The main shaft (1) is bent to form an inner space (10), and the main shaft (1) is also provided with a first arc groove (11), which connects to the inner space (10). The first support plate (23) includes a first support plate body (231) and an arc-shaped block (232); The arc-shaped block (232) of the first support plate (23) is disposed in the first arc-shaped groove (11) of the main shaft (1) and can rotate in the first arc-shaped groove (11) of the main shaft (1); At least a portion of the first support plate body (231) is disposed within the inner space (10) and is rotatable within the inner space (10).

7. The folding mechanism (100) according to claim 6, characterized in that, The first support plate body (231) includes a bottom surface (2312) and a first end surface (2313). The first end surface (2313) of the first support plate body (231) is connected to the bottom surface (2312) of the first support plate body (231). The bottom surface (2312) of the first support plate body (231) faces the main shaft (1) when the folding mechanism (100) is in the flattened state. The first support plate body (231) is provided with a clearance space (234), the clearance space (234) forming an opening on the bottom surface (2312) of the first support plate body (231), the clearance space (234) including a first wall surface (2341), the clearance space (234) The first wall surface (2341) is disposed opposite to the first end surface (2313) of the first support plate body (231); The first support plate (23) has at least two arc-shaped blocks (232). One arc-shaped block (232) of the first support plate (23) protrudes from the first end face (2313) of the first support plate body (231), and another arc-shaped block (232) of the first support plate (23) protrudes from the first wall surface (2341) of the clearance space (234).

8. The folding mechanism (100) according to claim 6 or 7, characterized in that, The first support plate (23) is provided with a first rotation space (235). The first rotation space (235) of the first support plate (23) is located on the side of the arc block (232) of the first support plate (23) away from the main shaft (1). The first rotation space (235) of the first support plate (23) includes a first side wall (2351) and a second side wall (2352) arranged opposite to each other. The first side wall (2351) and the second side wall (2352) of the first rotation space (235) of the first support plate (23) are both provided with a shaft hole (2353). The third support plate (25) includes a pivot block (252), and the pivot block (252) of the third support plate (25) is provided with a pivot hole (254); The folding mechanism (100) further includes a first rotating shaft (20a), which passes sequentially through the rotating shaft hole (2353) of the first side wall (2351) of the first rotation space (235) of the first support plate (23), the rotating shaft hole (254) of the rotating shaft block (252) of the third support plate (25), and the rotating shaft hole (2353) of the second side wall (2352) of the first rotation space (235) of the first support plate (23).

9. The folding mechanism (100) according to any one of claims 1 to 8, characterized in that, The first rotating pair (29a) includes a bracket (291a), a first pin (292a) and a second pin (293a), wherein the bracket (291a) is provided with a first pin hole (2911a) and a second pin hole (2912a) spaced apart; The connecting section (272) of the first connector (27) is provided with a rotation space (274). The rotation space (274) of the first connector (27) includes a first sidewall (2741) and a second sidewall (2742) arranged opposite to each other. The first sidewall (2741) and the second sidewall (2742) of the rotation space (274) of the first connector (27) are both provided with a pivot hole (2743). A portion of the bracket (291a) is located within the rotation space (274) of the connecting section (272) of the first connector (27). The first pin (292a) passes sequentially through the pivot hole (2743) of the first sidewall (2741) of the rotation space (274) of the first connector (27), the first pin hole (2911a) of the bracket (291a), and the pivot hole (2743) of the second sidewall (2742) of the rotation space (274) of the first connector (27). The first support plate (23) is also provided with a second rotation space (236). The second rotation space (236) of the first support plate (23) includes a first side wall (2361) and a second side wall (2362) arranged opposite to each other. The first side wall (2361) and the second side wall (2362) of the second rotation space (236) of the first support plate (23) are both provided with a pivot hole (2363). A portion of the bracket (291a) is located within the second rotation space (236) of the first support plate (23). The second pin (293a) passes sequentially through the pivot hole (2363) of the first side wall (2361) of the second rotation space (236) of the first support plate (23), the second pin hole (2912a) of the bracket (291a), and the pivot hole (2363) of the second side wall (2362) of the second rotation space (236) of the first support plate (23).

10. The folding mechanism (100) according to claim 9, characterized in that, The connecting segment (272) of the first connector (27) It includes a first part (2721) and a second part (2722), the first part (2721) connecting the rotating end (271) of the first connector (27) and the sliding end (273) of the first connector (27), and the second part (2722) protruding from one side relative to the rotating end (271) of the first connector (27); The rotation space (274) of the first connector (27) is located in the second part (2722).

11. The folding mechanism (100) according to any one of claims 1 to 10, characterized in that, The third support plate (25) includes an arc-shaped block (253), and the first fixing frame (21) is provided with an arc-shaped groove (212); The arc-shaped block (253) of the third support plate (25) is located in the arc-shaped groove (212) of the first fixed frame (21) and can rotate in the arc-shaped groove (212) of the first fixed frame (21).

12. The folding mechanism (100) according to any one of claims 1 to 11, characterized in that, The first support plate (23) is also slidably connected to the first fixing frame (21), and / or the second support plate (24) is also slidably connected to the second fixing frame (22).

13. The folding mechanism (100) according to claim 12, characterized in that, The first support plate (23) includes a slider (233), and the first fixing frame (21) is provided with a second sliding groove (215); The slider (233) of the first support plate (23) is located in the second slide groove (215) of the first fixed frame (21) and can slide in the second slide groove (215) of the first fixed frame (21).

14. The folding mechanism (100) according to claim 13, characterized in that, The first fixing frame (21) includes a first side surface (211c) facing the main shaft (1), and the second slide groove (215) of the first fixing frame (21) is inclined relative to the first side surface (211c) of the first fixing frame (21).

15. The folding mechanism (100) according to any one of claims 1 to 11, characterized in that, The first support plate (23) is also rotatably connected to the first fixing frame (21), and / or the second support plate (24) is also rotatably connected to the second fixing frame (22).

16. A folding mechanism (100), characterized in that, It includes a spindle (1), a first fixed frame (21), a second fixed frame (22), a first support plate (23), a second support plate (24), a third support plate (25), a fourth support plate (26), a first connector (27), and a second connector (28), wherein the spindle (1) is located between the first fixed frame (21) and the second fixed frame (22); The first support plate (23) is rotatably connected to the main shaft (1) and is slidably or rotatably connected to the first fixing frame (21). The third support plate (25) is rotatably connected to the first support plate (23) and the first fixing frame (21). The first connector (27) includes a rotating end (271) and a sliding end (273). The rotating end (271) of the first connector (27) is rotatably connected to the main shaft (1), and the sliding end (273) of the first connector (27) is slidably connected to the first fixing frame (21). The second support plate (24) is rotatably connected to the main shaft (1) and slidably or rotatably connected to the second fixed frame (22); the fourth support plate (26) is rotatably connected to the second support plate (24) and the second fixed frame (22). The second connector (28) includes a rotating end (281) and a sliding end (283). The rotating end (281) of the second connector (28) is rotatably connected to the main shaft (1), and the sliding end (283) of the second connector (28) is slidably connected to the second fixing frame (22).

17. The folding mechanism (100) according to claim 16, characterized in that, When the folding mechanism (100) is in a flattened state, the third support plate (25), the first support plate (23), the second support plate (24) and the fourth support plate (26) are sequentially spliced ​​together to form a support surface (100a); When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are arranged opposite to each other, the third support plate (25) and the fourth support plate (26) are arranged opposite to each other, and the main shaft (1), the first support plate (23), the second support plate (24), the third support plate (25) and the fourth support plate (26) enclose an accommodating space (100b).

18. The folding mechanism (100) according to claim 17, characterized in that, When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are both inclined relative to the main shaft (1), and the first support plate (23) and the second support plate (24) are close to each other in the direction close to the main shaft (1). The third support plate (25) and the fourth support plate (26) are also inclined relative to the main shaft (1), and the third support plate (25) and the fourth support plate (26) are close to each other in the direction away from the main shaft (1).

19. The folding mechanism (100) according to any one of claims 16 to 18, characterized in that, The first support plate (23) includes a slider (233), and the first fixing frame (21) is provided with a second sliding groove (215); The slider (233) of the first support plate (23) is located in the second slide groove (215) of the first fixed frame (21) and can slide in the second slide groove (215) of the first fixed frame (21).

20. The folding mechanism (100) according to claim 19, characterized in that, The first fixing frame (21) includes a first side surface (211c) facing the main shaft (1), and the second slide groove (215) of the first fixing frame (21) is inclined relative to the first side surface (211c) of the first fixing frame (21).

21. A folding mechanism (100), characterized in that, It includes a main shaft (1), a first fixed frame (21), a second fixed frame (22), a first support plate (23), a second support plate (24), a third support plate (25), a fourth support plate (26), a first connector (27), a second connector (28), a first rotating joint (29a), a second rotating joint (29b), a third rotating joint (29c), and a fourth rotating joint (29d), wherein the main shaft (1) is located between the first fixed frame (21) and the second fixed frame (22); The first support plate (23) is rotatably connected to the main shaft (1), and the third support plate (25) is rotatably connected to the first fixing frame (21); The first connector (27) includes a rotating end (271), a connecting section (272), and a sliding end (273) connected in sequence. The rotating end (271) of the first connector (27) is rotatably connected to the main shaft (1), and the sliding end (273) of the first connector (27) is slidably connected to the first fixing frame (21). The connecting section (272) of the first connector (27) is connected to the first support plate (23) through the first rotating joint (29a). The connecting section (272) of the first connector (27) is also connected to the third support plate (25) through the third rotating joint (29c). The second support plate (24) is rotatably connected to the main shaft (1), and the fourth support plate (26) is rotatably connected to the second fixing frame (22); The second connector (28) includes a rotating end (281), a connecting section (282), and a sliding end (283) connected in sequence. The rotating end (281) of the second connector (28) is rotatably connected to the main shaft (1), and the sliding end (283) of the second connector (28) is slidably connected to the second fixing frame (22). The connecting section (282) of the second connector (28) is connected to the second support plate (24) through the second rotating joint (29b). The connecting section (282) of the second connector (28) is also connected to the fourth support plate (26) through the fourth rotating joint (29d).

22. The folding mechanism (100) according to claim 21, characterized in that, When the folding mechanism (100) is in a flattened state, the third support plate (25), the first support plate (23), the second support plate (24) and the fourth support plate (26) are sequentially spliced ​​together to form a support surface (100a); When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are arranged opposite to each other, the third support plate (25) and the fourth support plate (26) are arranged opposite to each other, and the main shaft (1), the first support plate (23), the second support plate (24), the third support plate (25) and the fourth support plate (26) enclose an accommodating space (100b).

23. The folding mechanism (100) according to claim 22, characterized in that, When the folding mechanism (100) is in the folded state, the first support plate (23) and the second support plate (24) are both inclined relative to the main shaft (1), and the first support plate (23) and the second support plate (24) are close to each other in the direction close to the main shaft (1). The third support plate (25) and the fourth support plate (26) are also inclined relative to the main shaft (1), and the third support plate (25) and the fourth support plate (26) are close to each other in the direction away from the main shaft (1).

24. An electronic device (1000), characterized in that, The device includes a first housing (300), a second housing (400), a flexible screen (200), and a folding mechanism (100) as described in any one of claims 1 to 23, wherein the first fixing frame (21) is connected to the first housing (300). The second fixing bracket (22) is fixedly connected to the second housing (400); The flexible screen (200) includes a first display area (201), a second display area (202) and a third display area (203) connected in sequence. The first display area (201) is fixed to the first housing (300) and the third display area (203) is fixed to the second housing (400).

25. The electronic device (1000) according to claim 24, characterized in that, When the electronic device (1000) is in a flattened state, the first support plate (23), the second support plate (24), the third support plate (25), and the fourth support plate (26) together form a support surface (100a), which supports the second display area (202); When the folding mechanism (100) is in the folded state, the main shaft (1), the first support plate (23), the second support plate (24), the third support plate (25) and the fourth support plate (26) enclose a receiving space (100b), which receives the second display area (202).

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