A rotating shaft mechanism and electronic device

Abstract

The application provides a rotating shaft mechanism and an electronic device. The rotating shaft mechanism comprises a base and a main shaft module. The main shaft module comprises two rotating assemblies. Each rotating assembly comprises a support arm, a swing arm and a housing fixing frame. The two support arms are arranged on the two sides of the base and are rotationally connected with the base. The two swing arms are arranged on the two sides of the base and are rotationally connected with the base. The rotation axes of the support arm and the swing arm on the same side of the base are parallel and do not coincide. The two housing fixing frames are arranged on the two sides of the base. Each housing fixing frame is provided with two sliding grooves. For the support arm, the swing arm and the housing fixing frame on the same side of the base, the support arm and the swing arm can slide in a sliding groove respectively. In a reference plane perpendicular to the rotation axes of the support arm and the swing arm, the projections of the sliding directions of the support arm and the swing arm are not parallel. By using the rotating shaft mechanism, the reliability of the structure of the electronic device can be ensured, and a screen accommodating space meeting the bending requirements of the flexible display screen can be formed, so as to reduce the risk of damage of the flexible display screen.

Description

[0001] This application is a divisional application. The original application has the application number 202310036485.9 and the original application date is January 10, 2023. The entire contents of the original application are incorporated herein by reference.

[0002] This application claims priority to Chinese Patent Application No. 202210114094.X, filed on January 30, 2022, entitled "A Rotating Shaft Mechanism and Electronic Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of electronic equipment technology, and in particular to a rotating shaft mechanism and electronic equipment. Background Technology

[0004] With the gradual maturation of flexible display technology, the way electronic devices display technology has undergone tremendous changes. Foldable flexible screen mobile phones, foldable flexible screen tablets, and wearable electronic devices with foldable flexible screens are a major direction for the evolution of future smart electronic devices.

[0005] Flexible displays are a key component in foldable electronic devices, characterized by their continuous foldability. The hinge mechanism, as a crucial component enabling the folding function of foldable electronic devices, requires careful design to avoid straining or compressing the flexible display during rotation. This necessitates avoiding interference from other components within the hinge mechanism and the electronic device itself. Consequently, thin-walled components may exist within the hinge mechanism and the electronic device, impacting the overall structural reliability of the device.

[0006] Therefore, providing a hinge mechanism that can ensure the overall structural reliability of electronic devices while also meeting the folding requirements of flexible displays has become a major problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] This application provides a pivot mechanism and an electronic device to improve the overall structural reliability of the electronic device, reduce the risk of damage to the flexible display screen, and extend its service life.

[0008] In a first aspect, this application provides a pivot mechanism that can be used in foldable electronic devices, and the pivot mechanism is correspondingly configured with the flexible display screen of the electronic device. Specifically, the pivot mechanism may include a base and a main shaft module. The main shaft module may include a first rotating assembly and a second rotating assembly, which are respectively disposed on opposite sides of the base. The first rotating assembly includes a first support arm, a first swing arm, and a first housing fixing frame. The second rotating assembly includes a second support arm, a second swing arm, and a second housing fixing frame. The first and second support arms are rotatably connected to the base, and the first and second swing arms are also rotatably connected to the base. The rotation axes of the first support arm and the first swing arm are parallel but not coincident, and the rotation axes of the second support arm and the second swing arm are parallel but not coincident. Furthermore, the first housing fixing frame is provided with a first groove extending along a first direction and a second groove extending along a second direction. Thus, the first support arm can slide along the first direction within the first groove, and the first swing arm can slide within the second groove. Additionally, the projections of the first direction onto the first cross-section and the second direction onto the first cross-section are not parallel. The first cross-section serves as a reference plane perpendicular to the rotation axis of the first support arm and the rotation axis of the first swing arm. Similarly, the second housing bracket is provided with a third slide groove extending along a third direction and a fourth slide groove extending along a fourth direction, allowing the second support arm to slide within the third slide groove and the third swing arm to slide within the fourth slide groove. Furthermore, the projections of the third direction and the fourth direction onto the second cross-section are not parallel. The second cross-section serves as a reference plane perpendicular to the rotation axis of the second support arm and the rotation axis of the second swing arm.

[0009] By employing the rotating shaft mechanism provided in this application, and ensuring that the rotation axes of the first support arm and the first swing arm are not coincident, as are the rotation axes of the second support arm and the second swing arm, a phase difference in the axial centers between the support arm and the swing arm located on the same side can be achieved during the rotation of the rotating shaft mechanism. This enables the telescopic movement of the two rotating components, allowing the rotating shaft mechanism to stably support the flexible display screen of the electronic device when in the extended state, and to form a teardrop-shaped screen-accommodating space that meets the bending requirements of the flexible display screen when in the closed state. Furthermore, in this application, by rationally designing the opening directions of the first and second slide grooves of the first housing fixing frame, and the opening directions of the third and fourth slide grooves of the second housing fixing frame, the rotation angle of the first and second swing arms relative to the base can be reduced. This allows the wall thickness design of the local structures of the first and second swing arms to meet strength requirements, thereby improving the structural reliability of the first and second swing arms. When this rotating mechanism is applied to electronic devices, it effectively avoids the need for thinning the components to accommodate the rotation of the first and second swing arms, thus improving the overall structural reliability of the electronic device. Furthermore, it reduces the risk of the first and second swing arms squeezing the flexible display screen, thereby lowering the risk of damage and extending its lifespan.

[0010] As described above regarding the rotation principle of the rotating shaft mechanism provided in this application, by rationally designing the opening directions of the first and second sliding grooves of the first housing fixing frame, the rotation angles of the first support arm and the first swing arm relative to the base can be adjusted. For example, the rotation angles of the first support arm and the first swing arm relative to the base can both be no greater than 90°. Similarly, by rationally designing the opening directions of the third and fourth sliding grooves of the second housing fixing frame, the rotation angles of the second support arm and the second swing arm relative to the base can be adjusted. For example, the rotation angles of the second support arm and the second swing arm relative to the base can both be no greater than 90°. This allows for smaller rotation angles of the first and second swing arms relative to the base, thereby preventing other structures of the rotating shaft mechanism from obstructing the rotation of the first and second swing arms. This can facilitate an increase in the wall thickness of the local structures of the first and second swing arms, thereby improving the structural reliability of the first and second swing arms.

[0011] In this application, there are multiple ways to rotatably connect the first and second swing arms to the base. For example, a first arc-shaped groove and a second arc-shaped groove can be provided on the base. Simultaneously, a first arc-shaped rotating block is provided at the end of the first swing arm for rotatable connection with the base. This first arc-shaped rotating block can be accommodated within the first arc-shaped groove and can rotate along the arc surface of the first arc-shaped groove. Furthermore, a second arc-shaped block is provided at the end of the second swing arm for rotatable connection with the base. This second arc-shaped rotating block can be accommodated within the second arc-shaped groove and can rotate along the arc surface of the second arc-shaped groove. Thus, by accommodating the arc-shaped rotating block within the arc-shaped groove and allowing it to rotate along the arc surface of the arc-shaped groove, the rotatable connection between the first and second swing arms and the base can be achieved. This allows the first and second swing arms to be rotatably connected to the base via a virtual axis, effectively reducing the space occupied by the first and second swing arms on the base, thereby facilitating the miniaturization of the rotating shaft mechanism.

[0012] Additionally, the spindle module may also include a cover plate, which can be placed on the base to form an accommodating space between the base and the cover plate. Furthermore, the surface of the cover plate facing the first arc-shaped groove may also have a first arc-shaped protrusion. The first arc-shaped rotating block of the first swing arm can be inserted between the first arc-shaped protrusion and the first arc-shaped groove to limit the first arc-shaped rotating block on the base, thereby preventing the first arc-shaped rotating block from falling off the base and improving the reliability of the connection between the first swing arm and the base. Similarly, the surface of the cover plate facing the second arc-shaped groove may also have a second arc-shaped protrusion. The second arc-shaped rotating block of the second swing arm can be inserted between the second arc-shaped protrusion and the second arc-shaped groove to limit the second arc-shaped rotating block on the base, thereby preventing the second arc-shaped rotating block from falling off the base and improving the reliability of the connection between the second swing arm and the base.

[0013] In one possible implementation of this application, the first arc-shaped groove and the second arc-shaped groove can also be an integral channel structure directly formed on the base. This can ensure the reliability of the connection between the first arc-shaped rotating block and the first arc-shaped groove, and between the second arc-shaped rotating block and the second arc-shaped groove, while also effectively simplifying the structure of the base.

[0014] In one possible implementation of this application, a first slide rail can be provided on the wall of the first slide groove of the first housing fixture, and a first slider can be provided on the first support arm. The first slider can be engaged with the first slide rail and can slide along the first slide rail. This prevents the first support arm from detaching from the first housing fixture and provides guidance for the sliding of the first support arm through the first slide rail, thereby improving the reliability of the sliding of the first support arm along the first housing fixture.

[0015] Additionally, a second slide rail can be provided on the wall of the second slide groove of the first housing fixing frame, and a second slider can be provided on the first swing arm. The second slider can be engaged with the second slide rail and can slide along the second slide rail. This can prevent the first swing arm from falling off the first housing fixing frame, and the second slide rail can provide guidance for the sliding of the first swing arm, thereby improving the reliability of the first swing arm sliding along the first housing fixing frame.

[0016] Similarly, a third slide rail is provided on the wall of the third slide groove of the second housing fixture, and a third slider is provided on the second support arm. The third slider can be engaged with the third slide rail and can slide along the third slide rail. This prevents the second support arm from falling off the second housing fixture and provides guidance for the sliding of the second support arm through the third slide rail, thereby improving the reliability of the second support arm sliding along the second housing fixture.

[0017] Additionally, a fourth slide rail can be provided on the wall of the fourth slide groove of the second housing fixture, and a fourth slider can be provided on the second swing arm. The fourth slider can be engaged with the fourth slide rail and can slide along the fourth slide rail. This prevents the second swing arm from falling off the second housing fixture, and the fourth slide rail can guide the sliding of the second swing arm, thereby improving the reliability of the second swing arm sliding along the second housing fixture.

[0018] In this application, when specifically setting the second slider, it can be a straight slider. In this case, the second slide rail can be adapted to be a straight slide rail, which can effectively simplify the manufacturing process of the second slider and the second slide rail. Similarly, when specifically setting the fourth slider, it can be a straight slider. In this case, the fourth slide rail can be adapted to be a straight slide rail, which can effectively simplify the manufacturing process of the fourth slider and the fourth slide rail. It is understood that the second slider can also be other shapes adapted to the straight slide rail. For example, it can be a slider with a straight body and a hollow or spaced design in the middle, or it can be some irregularly shaped slider. Any slider that can slide in accordance with the shape of the straight slide rail is acceptable.

[0019] In one possible implementation of this application, the first housing mounting bracket includes a first surface, which is the side surface of the first housing mounting bracket facing the flexible screen. The second slider can be a linear slider, in which case the second slide rail can be adaptively set as a linear slide rail, which has an opening located on the first surface. In this case, when the pivot mechanism is in the deployed state, the linear slide rail can extend from the opening towards the base, which can improve the smoothness of the second slider sliding along the second slide rail and effectively reduce the interference of other structures of the pivot mechanism on the movement of the first swing arm, thereby facilitating an increase in the wall thickness of the first swing arm. In another possible implementation of this application, the linear slide rail can also extend from the opening in a direction away from the base; or, when the first housing mounting bracket also includes a second surface disposed opposite to the first surface, the linear slide rail can also extend from the opening in a direction perpendicular to the second surface, making the setting of the second slide rail more flexible. Here, the deployed state of the pivot mechanism refers to the state corresponding to the pivot mechanism when the electronic device is in the deployed state.

[0020] Additionally, the second housing fixture includes a third surface, which is the side surface of the second housing fixture facing the flexible screen. The fourth slider can be a linear slider, in which case the fourth slide rail can be adaptively configured as a linear slide rail with an opening located on the third surface. When the rotating shaft mechanism is in the deployed state, the linear slide rail can extend from the opening towards the base, which helps improve the smoothness of the fourth slider sliding along the fourth slide rail and effectively reduces the interference of other structures of the rotating shaft mechanism on the movement of the second swing arm, thereby facilitating an increase in the wall thickness of the second swing arm. In another possible implementation of this application, the linear slide rail can also extend from the opening in a direction away from the base; or, when the second housing fixture also includes a fourth surface disposed opposite to the third surface, the linear slide rail can also extend from the opening in a direction perpendicular to the fourth surface, making the configuration of the fourth slide rail more flexible.

[0021] In some possible implementations, the second slider can be set as an arc-shaped slider, and the second slide rail can be adapted to be an arc-shaped slide rail. This reduces the risk of the second slider detaching from the second slide rail, thereby improving the reliability of the cooperation between the second slider and the second slide rail. Alternatively, the fourth slider can be set as an arc-shaped slider, and the fourth slide rail can be adapted to be an arc-shaped slide rail. This reduces the risk of the fourth slider detaching from the fourth slide rail, thereby improving the reliability of the cooperation between the fourth slider and the fourth slide rail. Understandably, the second slider can also be other shapes that adapt to the arc-shaped slide rail. For example, it can be a slider that is entirely arc-shaped with hollowed-out or spaced sections in the middle, or it can be some irregularly shaped slider. Any slider that can slide in accordance with the shape of the arc-shaped slide rail is acceptable.

[0022] Furthermore, when the rotating shaft mechanism is in the deployed state, the axis of the arc-shaped slide can be located on the side of the arc-shaped slide facing away from the base. This improves the smoothness of the second slider sliding along the second slide and the smoothness of the fourth slider sliding along the fourth slide, and effectively reduces the interference of other structures of the rotating shaft mechanism on the movement of the first and second swing arms, thereby allowing for an increase in the wall thickness of the first and second swing arms. In another possible implementation of this application, when the rotating shaft mechanism is in the deployed state, the axis of the arc-shaped slide can also be located on the side of the arc-shaped slide facing the base, allowing for more flexible arrangement of the second and fourth slides.

[0023] In this application, the spindle module may further include a first drive link and a second drive link. The first drive link is disposed between the first support arm and the first swing arm, and includes a first connecting portion and a second connecting portion. The first connecting portion is rotatably connected to the first support arm via the first link, and the second connecting portion is rotatably connected to the first swing arm via the second link. The axes of the first and second links do not coincide. Furthermore, the second drive link includes a third connecting portion and a fourth connecting portion. The third connecting portion is rotatably connected to the second support arm via the third link, and the fourth connecting portion is rotatably connected to the second swing arm via the fourth link. The axes of the third and fourth links do not coincide.

[0024] This effectively improves the engagement between the first support arm and the first swing arm, as well as the second support arm and the second swing arm, and their corresponding grooves, thereby enhancing the consistency of their movements and making them smoother. Furthermore, when an electronic device using this rotating mechanism is in a closed state and falls, the first support arm and the first swing arm can jointly support the corresponding housing within the electronic device, and the second support arm and the second swing arm can also jointly support the corresponding housing within the electronic device. This prevents the two housings from shifting relative to the rotating mechanism, thus improving the overall reliability of the electronic device structure.

[0025] In addition to the aforementioned configuration, in another possible implementation, the first drive link and the second drive link are positioned between the first support arm and the first swing arm. The first drive link includes a first connecting portion and a second connecting portion, with the first connecting portion slidably connected to the first swing arm via a first link, and the second connecting portion fixedly connected to the first support arm. Alternatively, the second drive link is positioned between the second support arm and the second swing arm, and includes a third connecting portion and a fourth connecting portion. The third connecting portion is slidably connected to the second swing arm via a third link, and the fourth connecting portion is fixedly connected to the second support arm.

[0026] To achieve a sliding connection between the first connecting rod and the first swing arm, a first guide groove can be provided at the end of the first swing arm facing the first support arm. This allows the first connecting rod to be inserted into the first guide groove and slide along its surface. Furthermore, the first drive connecting rod can be integrally formed with the first support arm, thus simplifying the structure of the spindle module. Similarly, to achieve a sliding connection between the second connecting rod and the second swing arm, a second guide groove can be provided at the end of the second swing arm facing the second support arm. This allows the second connecting rod to be inserted into the second guide groove and slide along its surface. Furthermore, the second drive connecting rod can be integrally formed with the second support arm, further simplifying the structure of the spindle module.

[0027] The first and second drive linkages, when configured as described in this implementation, can improve the engagement between the first and second guide grooves and their corresponding sliding grooves through reasonable design. This enhances the consistency of movement of the first and second support arms and their corresponding sliding grooves, making their movements smoother. Furthermore, when an electronic device using this rotating mechanism is in a closed state and falls, the first support arm, first swing arm, and first drive linkage together support the corresponding housing within the electronic device. Similarly, the second support arm, second swing arm, and second drive linkage together support the corresponding housing within the electronic device. This prevents large, instantaneous displacements of the two housings relative to the rotating mechanism, thereby improving the overall reliability of the electronic device structure.

[0028] Furthermore, to avoid over-constraining the movement of the first support arm and the first swing arm, as well as the second support arm and the second swing arm, in one possible implementation of this application, when the second slide groove of the first housing fixing frame is provided with a second slide rail, and the first swing arm is provided with a second slider that can slide along the second slide rail, the second slider can be fitted with the second slide rail with a clearance to increase the degree of freedom of movement of the first swing arm. Similarly, when the fourth slide groove of the second housing fixing frame is provided with a fourth slide rail, and the second swing arm is provided with a fourth slider that can slide along the fourth slide rail, the fourth slider can be fitted with the fourth slide rail with a clearance to increase the degree of freedom of movement of the second swing arm.

[0029] When the second slider and the second slide rail are in clearance fit, the shape of the second slider can match the shape of the second slide rail. For example, when the second slide rail is rectangular, the second slider can be set as a rectangular slider; or, the second slider can also be set as a pin to simplify the structure of the second slider. Similarly, when the fourth slider and the fourth slide rail are in clearance fit, the shape of the fourth slider can match the shape of the fourth slide rail. For example, when the fourth slide rail is rectangular, the fourth slider can be set as a rectangular slider. Or, the fourth slider can also be set as a pin to simplify the structure of the fourth slider.

[0030] In one possible implementation of this application, the pivot mechanism may further include a first support plate and a second support plate, which are respectively disposed on both sides of the base. The first support plate is rotatably connected to the first housing fixing frame and slidably connected to the first support arm and / or the first swing arm. The second support plate is rotatably connected to the second housing fixing frame and slidably connected to the second support arm and / or the second swing arm. Furthermore, when the first housing fixing frame and the second housing fixing frame rotate towards each other, the end of the first support plate near the base moves away from the base, and the end of the second support plate near the base moves away from the base, thereby forming a triangular screen-accommodating space between the two support plates and the base. Thus, when this pivot mechanism is used in an electronic device, and the electronic device is in a closed state, the bent portion of the flexible display screen can be accommodated in this screen-accommodating space and take on a teardrop-like shape, which avoids pulling or squeezing the flexible screen, thereby reducing the risk of damage to the flexible display screen.

[0031] To enable the first support plate to rotate around the first housing fixture, a first rotating groove can be provided on the first housing fixture, and a first rotating part can be provided on the first support plate. This allows the first rotating part to be installed in the first rotating groove and to rotate along the groove surface. Similarly, to enable the second support plate to rotate around the second housing fixture, a second rotating groove can be provided on the second housing fixture, and a second rotating part can be provided on the second support plate. This allows the second rotating part to be installed in the second rotating groove and to rotate along the groove surface.

[0032] As described above regarding the rotating shaft mechanism, when the two housing fixing frames rotate towards each other, the two support plates rotate around their corresponding housing fixing frames, forming a screen-accommodating space. To create a screen-accommodating space between the two support plates that meets the bending requirements of the flexible display screen, the movement trajectory of the support plates can be rationally designed. In one possible implementation of this application, the first support plate may be provided with a first guide portion, and a first trajectory groove may be provided on the first guide portion. Additionally, the first swing arm may be provided with a first guide structure, which can be inserted into the first trajectory groove and slide along the first trajectory groove. And / or, the first guide structure may be provided on the first support arm and inserted into the first trajectory groove, and can slide along the first trajectory groove. Thus, during the rotation of the first swing arm and / or the first support arm around the base, the first support plate can be driven to rotate around the first housing fixing frame, and the movement trajectory of the first support plate can be adjusted by the sliding of the first guide structure within the first trajectory groove.

[0033] Similarly, the second support plate may be provided with a second guide portion, and a second track groove is provided on the second guide portion. Additionally, the second swing arm may be provided with a second guide structure, which can be inserted into the second track groove and slide along the second track groove. And / or, the second guide structure is provided on the second support arm and inserted into the second track groove, and can slide along the second track groove. Thus, during the rotation of the second swing arm and / or the second support arm around the base, the second support plate can be driven to rotate around the second housing fixing frame, and the movement trajectory of the second support plate can be adjusted by the sliding of the second guide structure within the second track groove. This allows a screen-accommodating space that meets the screen-accommodating requirements to be formed between the two support plates.

[0034] In the specific design of the first guide structure, taking the first swing arm as an example, one end of the first guide structure may have a first protrusion, and the first swing arm may have a first insertion hole. Furthermore, the wall of the first insertion hole has a first groove, allowing the first guide structure to be inserted into the first insertion hole, with the first protrusion engaging with the first groove. When it is necessary to detach the first guide structure from the first swing arm, a large pulling force can be applied to it, achieving a detachable connection between the first guide structure and the first swing arm. This ensures the reliability of the connection between the first guide structure and the first swing arm while effectively reducing the number of connecting parts, thus simplifying the structure of the rotating shaft mechanism and improving the ease of maintenance. In this application, the first support arm can also be provided with a first guide structure. One end of the first guide structure has a first protrusion, and the first support arm has a first insertion hole. The wall of the first insertion hole has a first groove. The first guide structure can be inserted into the first insertion hole, and the first protrusion engages with the first groove, thereby achieving a detachable connection between the first guide structure and the first support arm. This ensures the reliability of the connection between the first guide structure and the first support arm while effectively reducing the number of connecting parts, thus simplifying the structure of the rotating shaft mechanism and improving the ease of maintenance.

[0035] Similarly, the second swing arm can be provided with a second guide structure. One end of the second guide structure has a second protrusion. The second swing arm has a second insertion hole, and the wall of the second insertion hole has a second groove. The second guide structure can be inserted into the second insertion hole, and the second protrusion engages with the second groove. When it is necessary to remove the second guide structure from the second swing arm, a large pull-out force can be applied to the second guide structure, achieving a detachable connection between the second guide structure and the second swing arm. This ensures the reliability of the connection between the second guide structure and the second swing arm while effectively reducing the number of connecting parts, thus simplifying the structure of the rotating shaft mechanism and improving the ease of maintenance. Alternatively, the second support arm can be provided with a second guide structure. One end of the second guide structure has a second protrusion. The second support arm has a second insertion hole, and the wall of the second insertion hole has a second groove. The second guide structure is inserted into the second insertion hole, and the second protrusion engages with the second groove, thereby achieving a detachable connection between the second guide structure and the second support arm. In this way, while ensuring the reliability of the connection between the second guide structure and the second support arm, the number of connecting parts between the second guide structure and the second support arm can be effectively reduced, thereby simplifying the structure of the rotating shaft mechanism and improving the convenience of maintenance of the rotating shaft mechanism.

[0036] In another possible implementation of this application, when specifically setting the first guide structure, it can be rotatably connected to the first swing arm and / or rotatably connected to the first support arm. Similarly, the second guide structure is rotatably connected to the second swing arm and / or rotatably connected to the second support arm. By rotatably connecting the first guide structure to the first swing arm and / or the first support arm, and allowing the first guide structure to slide along the first track groove of the first support plate, the stability of the first swing arm and / or the first support arm driving the first support plate can be effectively improved; similarly, by rotatably connecting the second guide structure to the second swing arm and / or the second support arm, and allowing the second guide structure to slide along the second track groove of the second support plate, the stability of the second swing arm and / or the second support arm driving the second support plate can be effectively improved. Furthermore, when the electronic device is in the unfolded state, the flatness of the support provided by the first and second support plates for the flexible display screen can be effectively improved. Additionally, when the electronic device is in the closed state, the risk of the first and second support plates squeezing the flexible display screen during a drop can be reduced, thereby improving the overall structural reliability of the device.

[0037] When the first guide structure is rotatably connected to the first swing arm and / or the first support arm, in order to facilitate the sliding of the first guide structure in the first track groove, the first track groove can have a first opening, wherein when the rotating shaft mechanism is in the unfolded state, the first opening is oriented towards the base, so that the first guide structure can be inserted into the first track groove through the first opening.

[0038] Similarly, when the second guide structure is rotatably connected to the second swing arm and / or the second support arm, in order to facilitate the sliding of the second guide structure in the second track groove, the second track groove can have a second opening, wherein when the rotating shaft mechanism is in the unfolded state, the second opening is set towards the base, so that the second guide structure can be inserted into the second track groove through the second opening.

[0039] In one possible implementation of this application, the spindle module may further include a synchronization component, which may include a first drive gear disposed at the end of the first support arm and a second drive gear disposed at the end of the second support arm, the two drive gears meshing together. Thus, when one support arm rotates around the base, it can drive the other support arm to rotate synchronously at the same angle in opposite or opposing directions.

[0040] Furthermore, since the two support arms are slidably connected to the housing fixing frames located on the same side of the base, the synchronous rotation of the two support arms can achieve synchronous rotation of the two housing fixing frames. Additionally, when this rotating mechanism is applied to electronic devices, the two housing fixing frames can be fixedly connected to one housing of the electronic device, thereby achieving synchronous rotation of the two housings. This avoids applying instantaneous forces to the flexible display screen fixed to the two housings, thus improving the reliability of the flexible display screen.

[0041] In addition, the synchronization assembly may also include an even number of driven gears, which can be positioned between the two driving gears so that the two driving gears rotate synchronously through these even number of driven gears. This helps to improve the stability of the synchronization assembly's movement, thereby improving the reliability of the synchronous rotation of the two support arms.

[0042] In addition to the above structure, a damping assembly can also be provided in the spindle module. The damping assembly may include a first elastic element and a first integrated cam, with the first integrated cam located between the first elastic element and the first support arm. Furthermore, the end of the first support arm facing the first integrated cam may have a first cam surface, the end of the second support arm facing the first integrated cam may have a second cam surface, the end of the first integrated cam facing the first support arm may have a third cam surface, and the end facing the second support arm may have a fourth cam surface. Under the elastic force of the first elastic element, the corresponding first and third cam surfaces engage, and the second and fourth cam surfaces engage. Thus, during the rotation of the two support arms around the base, a damping force is generated between the engaging cam surfaces, which impedes the rotation of the corresponding support arm. This damping force can be transmitted through the two support arms to the corresponding housing mounting bracket, thereby acting on the housing of the electronic device through the housing mounting bracket. This prevents accidental opening and closing of the electronic device and allows the two housings to be suspended at a set position. In addition, users can clearly feel the opening and closing of electronic devices, which helps to improve the user experience.

[0043] Secondly, this application also provides an electronic device, which includes a first housing, a second housing, a flexible display screen, and a rotating mechanism as described in the first aspect. The first housing and the second housing are respectively disposed on opposite sides of the rotating mechanism, with a first housing mounting bracket fixedly connected to the first housing and a second housing mounting bracket fixedly connected to the second housing. Furthermore, the flexible display screen can continuously cover the first housing, the second housing, and the rotating mechanism, and is fixedly connected to both the first and second housings.

[0044] The electronic device provided in this application, when in its unfolded state, utilizes a pivot mechanism to provide flat support for the flexible display screen, ensuring the integrity of the device's form and improving the screen's lighting. As the electronic device rotates from its unfolded to its closed state around the pivot mechanism, the two housings of the device drive their corresponding housing mounting brackets to rotate around the base. This, in turn, allows the housing mounting brackets to drive the support arms and swing arms on the same side to rotate around the base. Furthermore, by rationally designing the opening directions of the first and second sliding grooves of the first housing mounting bracket, and the third and fourth sliding grooves of the second housing mounting bracket, the angles of rotation of the corresponding support arms and swing arms relative to the base can be adjusted. This avoids the need for thinning the components of the electronic device to accommodate the rotation of the two swing arms, thus improving the overall structural reliability of the electronic device. Moreover, when the electronic device is in its closed state, the distance between the two swing arms and the flexible display screen is greater, preventing the swing arms from squeezing or pulling the flexible display screen, reducing the risk of damage, and extending its service life.

[0045] Furthermore, in this application, when the rotating shaft mechanism also includes a first support plate and a second support plate, the first support plate and the second support plate are respectively disposed on both sides of the base, and the first support plate is rotatably connected to the first housing fixing frame, and the second support plate is rotatably connected to the second housing fixing frame. In this case, the flexible display screen can be bonded to the first support plate and the second support plate.

[0046] Specifically, the flexible display screen can be bonded to a portion of the first support plate, and also to a portion of the second support plate. This allows the first housing, second housing, first support plate, and second support plate to collectively provide stable support for the flexible display screen when the electronic device is in the unfolded state. During the transition from the unfolded to the closed state, the two support plates can rotate the flexible display screen, effectively preventing deformation and reducing the risk of damage. Furthermore, when the electronic device is in the closed state, the flexible display screen can be fitted against the two support plates, which helps improve the light and shadow effects on the flexible screen.

[0047] Furthermore, by rationally designing the track grooves of the first and second support plates, a space sufficient to accommodate the bent portion of the flexible display screen can be formed between the two support plates and the cover plate when the electronic device is in the closed state. This avoids gaps at the hinge mechanism, thus ensuring the relatively intact shape of the electronic device in the closed state. This also prevents foreign objects from being inserted into the electronic device through the hinge mechanism and damaging the flexible display screen, and facilitates a reduction in the overall thickness of the electronic device.

[0048] In one possible implementation of this application, the electronic device may further include an end cap, which may be located on the side of the base opposite to the flexible display screen, and the end cap may be integrally formed with the base. This allows the end cap to protect the hinge mechanism and effectively improves the aesthetic appearance of the electronic device. Attached Figure Description

[0049] Figure 1 A schematic diagram of the structure of an electronic device in a closed state according to an embodiment of this application; Figure 2 A schematic diagram of the structure of an electronic device in an unfolded state according to an embodiment of this application; Figure 3 A schematic diagram of the motion principle of a prior art rotating shaft mechanism provided in an embodiment of this application; Figure 4 This is an exploded view of an electronic device provided in an embodiment of this application; Figure 5a This is an exploded structural diagram of a rotating shaft mechanism provided in an embodiment of this application; Figure 5b An exploded view of a partial structure of a rotating shaft mechanism provided in an embodiment of this application; Figure 6 A partial structural schematic diagram of a rotating shaft mechanism provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of a swing arm provided in one embodiment of this application; Figure 8 A partial structural schematic diagram of a rotating shaft mechanism provided in another embodiment of this application; Figure 9 This is a schematic diagram of the structure of a housing fixing frame provided in one embodiment of this application; Figure 10a A schematic diagram of the rotating shaft mechanism provided in an embodiment of this application in its unfolded state; Figure 10b A schematic diagram of a first cross-section provided for an embodiment of this application; Figure 10c A schematic diagram of the rotating shaft mechanism in an intermediate state according to an embodiment of this application; Figure 10d A schematic diagram of the rotating shaft mechanism in a closed state according to an embodiment of this application; Figure 11 A schematic diagram of the mechanism for sliding the support arm and swing arm relative to the housing fixing frame according to an embodiment of this application; Figure 12 This is a schematic diagram of the structure of a swing arm provided in another embodiment of this application; Figure 13aA schematic diagram of the rotating shaft mechanism provided in an embodiment of this application when it is in the unfolded state; Figure 13b A schematic diagram of a first cross-section provided for another embodiment of this application; Figure 13c A schematic diagram of a first cross-section provided for another embodiment of this application; Figure 13d A schematic diagram of a first cross-section provided for another embodiment of this application; Figure 14 A schematic diagram of the rotating shaft mechanism in an intermediate state according to an embodiment of this application; Figure 15 This is a schematic diagram of the rotating shaft mechanism provided in an embodiment of this application when it is in a closed state. Figure 16a This is a schematic diagram of the connection structure between the support arm and the swing arm provided in an embodiment of this application; Figure 16b This is a schematic diagram of the structure of the first drive link provided in an embodiment of this application; Figure 16c This is a schematic diagram of the structure of the first support arm provided in an embodiment of this application; Figure 17 for Figure 16a Sectional view at point BB; Figure 18 for Figure 16a Sectional view at CC; Figure 19 This is a schematic diagram of the structure of a swing arm provided in another embodiment of this application; Figure 20a A schematic diagram of the connection structure between the first support arm and the first swing arm provided in another embodiment of this application; Figure 20b A schematic diagram of the structure of the first swing arm provided in another embodiment of this application; Figure 20c A schematic diagram of the structure connecting the first drive link and the first support arm provided in an embodiment of this application; Figure 21 This is a schematic diagram of the structure of a support plate provided in one embodiment of this application; Figure 22 This is a schematic diagram of a support plate supporting a flexible display screen according to an embodiment of this application. Figure 23 A cross-sectional view of a rotating shaft mechanism provided in an embodiment of this application; Figure 24 A cross-sectional view of a rotating shaft mechanism provided in an embodiment of this application when it is in a closed state; Figure 25 A partial structural schematic diagram of a rotating shaft mechanism provided in another embodiment of this application; Figure 26 for Figure 25 A cross-sectional view of the rotating shaft mechanism shown; Figure 27 A cross-sectional view of a rotating shaft mechanism provided in another embodiment of this application; Figure 28 This is a schematic diagram of the structure of the first support plate provided in another embodiment of this application; Figure 29 A partial structural schematic diagram of a rotating shaft mechanism provided in another embodiment of this application; Figure 30 for Figure 29 Sectional view at point DD; Figure 31 This is a partial structural schematic diagram of a rotating shaft mechanism provided in another embodiment of this application.

[0050] Figure label: 1-Rotating shaft mechanism; 101-Main shaft module; 101a-First rotating assembly; 101b-Second rotating assembly; 1012-First support arm; 10121-First slider; 10122-First mounting hole; 1013-First swing arm; 10131-First arc-shaped rotating block; 10132-Second slider; 10133-First guide structure; 101331 - First protrusion; 10134 - First guide groove; 10135 - Second mounting hole; 10136 - First insertion hole; 101361 - First groove; 1014 - Cover plate; 10141 - First arc-shaped protrusion; 10142 - Second arc-shaped protrusion; 1015 - First housing fixing bracket; 1015a - First surface; 1015b - Second surface; 10151 - First sliding groove; 101511 - First slide rail; 10152 - Second slide groove; 101521 - Second slide rail; 10153 - First rotating groove; 1016a - First drive link; 10161 - First connecting part; 10162 - Second connecting part; 10163 - First link; 10164 - Second link; 1016b - Second drive link; 1017 - Synchronization component; 10171a - First driving gear; 10171b - Second driving gear; 10172 - Driven gear; 10173 - Intermediate shaft; 1018-Damping assembly; 10181-First elastic element; 10182-First integrated cam; 10183-Stop block; 10184 - Snap ring; 10185 - Second integrated cam; 10186 - Third integrated cam; 10187 - Second elastic element; 1019 - Second housing fixing bracket; 1019a - Third surface; 1019b - Fourth surface; 10191 - Third sliding groove; 101911 - Third slide rail; 10192 - Fourth slide rail; 101921 - Fourth slide rail; 10193 - Second rotating groove; 1020 - Second support arm; 102001 - Third slider; 1021 - Second swing arm; 102101 - Second arc-shaped rotating block; 102102 - Fourth slider; 102103 - Second guide structure; 1021031 - Second protrusion; 102104 - Second insertion hole; 1021041 - Second groove; 1022 - Third support arm; 1023 - Fourth support arm; 102-First support plate; 102a-First plate surface; 102b-Second plate surface; 10201-First rotating part; 10202-First guide section; 102021-First track groove; 1020211-First opening; 103-Second support plate; 1031-Second rotating part; 1032-Second guide part; 10321-Second trajectory groove; 103211 - Second opening; 104 - Screen space; 105 - End cap; 106 - Base; 1061 - Pin; 1062 - Damping bracket; 1063 - First arc-shaped groove; 1064 - Second arc-shaped groove; 2-First housing; 2a-First outer surface; 2b-First support surface; 201-First slot; 3-Second housing; 3a-Second outer surface; 3b-Second support surface; 301-Second slot; 4- Flexible display screen. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0052] To facilitate understanding of the hinge mechanism provided in this application embodiment, its application scenarios are first described below. This hinge mechanism can be applied to, but is not limited to, foldable electronic devices such as mobile phones, personal digital assistants (PDAs), laptops, or tablets. When applying the hinge mechanism provided in this application embodiment to electronic devices, please refer to... Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. In addition to the pivot mechanism 1, the electronic device may also include two housings and a flexible display screen. For ease of description, the two housings can be named the first housing 2 and the second housing 3, respectively. The first housing 2 and the second housing 3 are located on both sides of the pivot mechanism 1 and can rotate around the pivot mechanism 1. In use, the electronic device can be closed and unfolded according to different usage scenarios. The electronic device provided in this application can be an inward-folding electronic device. Figure 1 In the illustrated embodiment, the electronic device is in a closed state, and Figure 1 The diagram illustrates the relative positional relationship between the hinge mechanism 1 and the two housings when the electronic device is in a closed state. In this state, the surface of the hinge mechanism 1, the first outer surface 2a of the first housing 2, and the second outer surface 3a of the second housing 3 can collectively serve as the outer surface of the electronic device. Specifically, the first outer surface 2a of the first housing 2 refers to the surface of the first housing 2 that faces away from the flexible display screen, and the second outer surface 3a of the second housing 3 refers to the surface of the second housing 3 that faces away from the flexible display screen 4.

[0053] Additionally, you can refer to Figure 2 , Figure 2 A schematic diagram of the electronic device in its unfolded state is shown. It is worth mentioning that... Figure 2 The diagram illustrates the structure of the first support surface 2b of the first housing 2 and the second support surface 3b of the second housing 3. The first support surface 2b of the first housing 2 refers to the surface of the first housing 2 used to support the flexible display screen 4, and the second support surface 3b of the second housing 3 refers to the surface of the second housing 3 used to support the flexible display screen 4. The flexible display screen 4 can continuously cover the first support surface 2b of the first housing 2, the second support surface 3b of the second housing 3, and the rotating shaft mechanism 1, and the flexible display screen 4 can be fixedly connected to the first support surface 2b of the first housing 2 and the second support surface 3b of the second housing 3, and the connection method can be, but is not limited to, adhesive bonding. Thus, when the electronic device is in a position such as… Figure 2 When in the unfolded state shown, the first housing 2 and the second housing 3 can support the flexible display screen 4.

[0054] The first housing 2 and the second housing 3 are composed of Figure 2 The unfolded state shown Figure 1 The closed state shown, or by Figure 1 The closed state shown Figure 2 During the relative rotation of the unfolded state shown, the flexible display screen 4 can be bent or flattened along with the first housing 2 and the second housing 3.

[0055] Understandably, this electronic device is made by Figure 2 The unfolded state shown Figure 1 The closed state shown, or by Figure 1 The closed state shown Figure 2 The unfolded state shown is the process of the first housing 2 and the second housing 3 rotating around the pivot mechanism 1. The pivot mechanism 1, as a key functional component in the foldable electronic device, is designed to correspond to the foldable portion of the flexible display screen 4; therefore, it plays a crucial role in... Figure 2 The support for the foldable portion of the flexible display screen 4 in the unfolded state, as shown, and in... Figure 1 The closed state shown plays an important role in accommodating the foldable portion of the flexible display screen 4.

[0056] For example, when electronic devices are in Figure 1 In the closed state shown, if the space formed between the first housing 2, the pivot mechanism 1, and the second housing 3 cannot meet the bending requirements of the flexible display screen 4, it may cause compression or pulling on the flexible display screen 4. Thus, after the electronic device undergoes multiple folding operations, the flexible display screen 4 is easily damaged.

[0057] Currently, some existing rotating shaft mechanisms may include a base and two rotating components. Each rotating component may include a support arm, a swing arm, and a housing mounting bracket. Both the support arm and the swing arm can be rotatably connected to the base, the support arm can be slidably connected to the housing mounting bracket, the swing arm can be rotatably connected to the housing mounting bracket, and the housing mounting bracket can be fixedly connected to the housing of the electronic device. For each rotating component, during the rotation of the support arm and swing arm around the base, the following can be referenced: Figure 3 , Figure 3 The schematic diagram illustrates the mechanism of the rotating support arm and swing arm. Because the axes of rotation of the support arm and swing arm are not coincident, a phase difference exists between them during their rotation around the base. This causes the rotating shaft mechanism to malfunction when moving with the electronic equipment. Figure 1 The closed state shown Figure 2 During the unfolding process shown, the shell fixing frame will extend further relative to the base under the push of the swing arm, thereby increasing the length of the rotating shaft mechanism. And in the rotating shaft mechanism... Figure 2 The unfolded state shown Figure 1 During the closed state shown, the housing fixing frame will reduce its extension length relative to the base under the action of the swing arm, thereby reducing the length of the rotating shaft mechanism. During the rotation of the aforementioned rotating shaft mechanism, the telescopic movement of the housing fixing frame relative to the base can accommodate the length of the part of the flexible display screen corresponding to the rotating shaft mechanism, thereby avoiding pulling or squeezing of the flexible display screen.

[0058] As explained above regarding the motion principle of existing pivot mechanisms, the phase difference between the support arm and the swing arm plays a crucial role in ensuring the reliability of flexible displays. This phase difference can be achieved by designing the rotation angle of the swing arm. To avoid interference with the swing arm's rotation angle during its rotation around the base, the wall thickness of the swing arm or other components of the pivot mechanism typically needs to be reduced. Furthermore, for a pivot mechanism of the same volume, the wall thickness of each component must meet certain requirements to ensure structural reliability. Therefore, it is crucial to achieve both the telescopic movement of the pivot mechanism during rotation, thereby reducing the risk of damage to the flexible display, while simultaneously ensuring the structural reliability of the pivot mechanism.

[0059] The hinge mechanism provided in this application aims to solve the aforementioned problems. While ensuring the structural reliability of the hinge mechanism, it also enables telescopic movement during rotation. When the hinge mechanism is in the extended state, it can stably support the flexible display screen; and when the hinge mechanism is in the closed state, it can create a space to accommodate the bending requirements of the flexible display screen, thereby preventing deformation of the flexible display screen, reducing the compressive or tensile stress on the flexible display screen, extending its service life, and improving the reliability of electronic devices. To facilitate understanding of the hinge mechanism provided in the embodiments of this application, its specific structure will be described in detail below with reference to the accompanying drawings.

[0060] It is worth noting that the terminology used in the following embodiments is for the purpose of describing specific embodiments only and is not intended to be a limitation of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise.

[0061] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0062] Reference Figure 4 , Figure 4for Figure 2 The diagram shows the exploded structure of the electronic device. Figure 4 The flexible display screen is omitted from the text; in addition, it is composed of... Figure 4 As can be seen, the first housing 2 and the second housing 3 are located on opposite sides of the rotating shaft mechanism 1. In this application, the rotating shaft mechanism 1 may include one spindle module 101 or multiple spindle modules 101. For example, see [reference needed]. Figure 5a , Figure 5a for Figure 4 The exploded view of the rotating shaft mechanism 1 shown is illustrated. Figure 5a In the illustrated embodiment, the rotating shaft mechanism 1 includes three spindle modules 101, which are spaced apart along the length of the rotating shaft mechanism 1. In this application, the length of the rotating shaft mechanism 1 extends along the axis of rotation of the first housing 2 and the second housing 3 about the rotating shaft mechanism 1. The first housing 2 and the second housing 3 can be rotatably connected by the plurality of spindle modules 101, which effectively improves the stability of the rotation of the first housing 2 and the second housing 3 of the electronic device relative to the rotating shaft mechanism 1.

[0063] When configuring the spindle module 101, please refer to... Figure 5b , Figure 5b An exploded view of a partial structure of the rotating shaft mechanism 1 provided in one possible embodiment of this application. See also... Figure 5a and Figure 5b In this application, the spindle module 101 may include a first rotating component 101a and a second rotating component 101b.

[0064] Reference Figure 6 , Figure 6 This is a partial structural schematic diagram of a rotating shaft mechanism 1 provided for a possible embodiment of this application. In this application, the rotating shaft mechanism 1 may further include a base 106. Additionally, see also... Figure 5b and Figure 6 The base 106 can serve as a support component for the first rotating assembly 101a and the second rotating assembly 101b. The first rotating assembly 101a and the second rotating assembly 101b are respectively disposed on both sides of the base 106, and the first rotating assembly 101a and the second rotating assembly 101b can be symmetrically arranged relative to the base 106. For ease of description, in the following embodiments of this application, the spindle module 101 is mainly described using the specific arrangement of the first rotating assembly 101a and the connection relationship between the first rotating assembly 101a and the base 106 as examples, while the second rotating assembly 101b side can be set with reference to the first rotating assembly 101a side.

[0065] It is worth mentioning that, in one possible embodiment of this application, when there are multiple spindle modules 101, the first rotating component 101a and the second rotating component 101b of the multiple spindle modules 101 can all use the same base 106 as the bearing component, so as to improve the integration level of the rotating shaft mechanism 1. In some other possible embodiments of this application, the rotating shaft mechanism 1 can be provided with a base 106 for each spindle module 101, so that the first rotating component 101a and the second rotating component 101b of each spindle module 101 use the corresponding base 106 as the bearing component.

[0066] You can continue to refer to Figure 6 In this application, the first rotating assembly 101a may include a first support arm 1012, which is rotatably connected to the base 106. For example, the first support arm 1012 can be rotatably connected to the base 106 via a pin 1061. In a specific implementation, the base 106 may be provided with a damping bracket 1062, and the pin 1061 can pass through both the damping bracket 1062 and the first support arm 1012, thereby achieving a rotatable connection between the first support arm 1012 and the base 106 through the rotatable connection between the first support arm 1012 and the damping bracket 1062 via the pin 1061.

[0067] It is worth mentioning that, in this application, besides using a pin 1061 to achieve a rotatable connection between the first support arm 1012 and the damping bracket 1062, in some possible embodiments, the first support arm 1012 can also be rotatably connected to the damping bracket 1062 using a virtual axis. Here, the virtual axis refers to the axis of an arc-shaped structure, and the two rotatably connected components can rotate relative to this virtual axis. The position of the virtual axis remains fixed as the two rotatably connected components rotate relative to each other. For example, an arc-shaped groove can be provided on the damping bracket 1062, and an arc-shaped rotating block can be provided on the first support arm 1012. The rotation of the first support arm 1012 and the damping bracket 1062 is achieved by sliding the arc-shaped rotating block along the groove surface.

[0068] In this application, the first rotating assembly 101a may further include a first swing arm 1013, which is rotatably connected to the base 106. In one possible embodiment of this application, the first swing arm 1013 and the base 106 may be rotatably connected via a virtual axis; for example, see [reference needed]. Figure 7 , Figure 7 This is a schematic diagram of the structure of a first swing arm 1013 provided for a possible embodiment of this application. The end of the first swing arm 1013 for connection with the base 106 may be provided with a first arc-shaped rotating block 10131.

[0069] Additionally, you can refer to Figure 8 , Figure 8 This is a partial structural diagram of the rotating shaft mechanism. The base 106 may be provided with a first arc-shaped groove 1063, as described above... Figure 7 The first arc-shaped rotating block 10131 of the first swing arm 1013 shown can be accommodated in the first arc-shaped groove 1063 and can rotate along the arc surface of the first arc-shaped groove 1063, thereby realizing the rotation of the first swing arm 1013 around the base 106. By making the first swing arm 1013 and the base 106 rotatably connected through a virtual axis, it is beneficial to reduce the space occupied by the first swing arm 1013 on the base 106, thereby reducing the volume of the main shaft module 101, so as to realize the miniaturization design of the rotating shaft mechanism 1. It is worth mentioning that, in this application, the first arc-shaped rotating block 10131 can be, but is not limited to, a circular arc-shaped rotating block, and the first arc-shaped groove 1063 can be, but is not limited to, a circular arc groove.

[0070] You can continue to refer to Figure 8 The rotating shaft mechanism 1 may further include a cover plate 1014, which can cover the base 106 to form an accommodating space between the cover plate 1014 and the base 106. It is worth mentioning that in this application, a separate cover plate 1014 can be provided for each spindle module 101 to make its structure more flexible. Alternatively, multiple spindle modules 101 can share a single cover plate 1014 to simplify the structure of the rotating shaft mechanism 1. Furthermore, by Figure 8 It can be seen that the surface of the cover plate 1014 facing the first arc-shaped groove 1063 can be provided with a first arc-shaped protrusion 10141, then the above-mentioned Figure 7 The first arc-shaped rotating block 10131 of the first swing arm 1013 shown can be inserted between the first arc-shaped protrusion 10141 and the first arc-shaped groove 1063. This allows the first arc-shaped protrusion 10141 to confine the first arc-shaped rotating block 10131 of the first swing arm 1013 within the first arc-shaped groove 1063 of the base 106, reducing the risk of the first swing arm 1013 detaching from the base 106 and thus improving the reliability of the movement of the first swing arm 1013.

[0071] In another possible embodiment of this application, the first arc-shaped groove 1063 can also be an integral channel structure directly formed on the base 106. This allows for an integrated design of the base 106, improving the structural reliability of the rotating shaft mechanism. Furthermore, the number of first arc-shaped grooves 1063 can be, but is not limited to, at least two. These at least two first arc-shaped grooves 1063 can be spaced apart along the length of the base 106, and can limit the movement of the first arc-shaped rotating block 10131, thereby improving the reliability of the connection between the first arc-shaped rotating block 10131 and the base 106.

[0072] In other embodiments of this application, the first swing arm 1013 and the base 106 can also be rotatably connected via a solid shaft. For example, the first swing arm 1013 can be rotatably connected to the base 106 via a pin. Thus, when the rotating shaft mechanism includes multiple spindle modules 101, the first swing arm 1013 of at least one of the spindle modules 101 can be rotatably connected to the base 106 via a virtual shaft, and the first swing arm 1013 of at least one spindle module 101 can be rotatably connected to the base 106 via a solid shaft. In this case, the first swing arm 1013 of the spindle assembly 101, which is positioned opposite the flexible display screen of the electronic device, can be rotatably connected to the base 106 via a virtual shaft connection, while the first swing arms 1013 of the spindle assembly 101 located at both ends of the rotating shaft mechanism along its length can be rotatably connected to the base 106 via a solid shaft connection.

[0073] You can continue to refer to Figure 6 In this application, the first rotating assembly may further include a first housing fixing frame 1015, which can be connected to the first support arm 1012 and the first swing arm 1013.

[0074] When specifically setting the first housing fixing bracket 1015, refer to Figure 9 , Figure 9 This is a schematic diagram of the structure of a first housing holder 1015 provided for a possible embodiment of this application. In this embodiment, the first housing holder 1015 may be provided with a first sliding groove 10151, which extends along a first direction. See also... Figure 6 and Figure 9 The first support arm 1012 can be installed in the first slide groove 10151 and can slide within the first slide groove 10151. The first direction can be the direction in which the first housing fixing frame 1015 moves towards or away from the base 106. Furthermore, to prevent the first support arm 1012 from detaching from the first slide groove 10151, a first slide rail 101511 can be provided on the wall of the first slide groove 10151, and a first slider 10121 can be provided on the first support arm 1012 (see reference). Figure 5b This allows the first slider 10121 to be engaged with the first slide rail 101511 and to slide along the first slide rail 101511, thereby limiting the first support arm 1012 within the first slide groove 10151. Furthermore, by providing the first slide rail 101511 on the groove wall of the first slide groove 10151, it provides guidance for the sliding of the first support arm 1012 along the first slide groove 10151, thereby improving the stability of the movement of the first support arm 1012.

[0075] You can continue to refer to Figure 9The first housing fixing frame 1015 may also be provided with a second sliding groove 10152, which extends along a second direction, and the first sliding groove 10151 and the second sliding groove 10152 are spaced apart along the length direction of the first housing fixing frame 1015. (See also...) Figure 7 and Figure 9 The end of the first swing arm 1013 facing the first housing fixing frame 1015 can be installed in the second slide groove 10152, and the first swing arm 1013 can slide within the second slide groove 10152. It should be noted that in this application, the first housing fixing frame 1015 may include a first surface 1015a and a second surface 1015b arranged opposite each other. The first surface 1015a may be the side surface of the first housing fixing frame 1015 facing the flexible display screen when the rotating shaft mechanism 1 is applied to an electronic device. The second direction may be from the first surface 1015a to the second surface 1015b, or from the second surface 1015b to the first surface 1015a. Furthermore, the projection of the second direction onto the first cross-section may not be parallel to the projection of the first direction onto the first cross-section. The first cross-section may be a reference plane perpendicular to the rotation axis of the first support arm 1012 and the rotation axis of the first swing arm 1013.

[0076] Additionally, you can continue to refer to Figure 9 In this application, a second slide rail 101521 may also be provided within the second slide groove 10152, and... Figure 7 A second slider 10132 is provided on the first swing arm 1013 shown. This allows the second slider 10132 to be engaged with the second slide rail 101521 and to slide within the second slide rail 101521 in a second direction, thereby limiting the first swing arm 1013 in the second slide rail 10152 and preventing it from falling off. Furthermore, by providing the second slide rail 101521 on the wall of the second slide rail 10152, it provides guidance for the sliding of the first swing arm 1013 along the second slide rail 10152, thereby improving the stability of the first swing arm 1013's movement.

[0077] As can be seen from the above, in this application, the second rotating component 101b can be symmetrically arranged with respect to the base 106 as the first rotating component 101a. For specific implementation, please refer to... Figure 5b and Figure 6The second rotating assembly 101b may include a second housing fixing frame 1019, a second support arm 1020, and a second swing arm 1021. The second housing fixing frame 1019 has a third surface 1019a and a fourth surface 1019b arranged opposite each other. When the rotating shaft mechanism is used in an electronic device, the third surface 1019a is the side surface of the second housing fixing frame 1019 facing the flexible display screen. Additionally, the second housing fixing frame 1019 may include a third slide groove 10191 extending along a third direction and a fourth slide groove 10192 extending along a fourth direction. The second support arm 1020 can slide within the third slide groove 10191, and the second swing arm 1021 can slide within the fourth slide groove 10192. The projection of the third direction onto a second cross-section is not parallel to the projection of the fourth direction onto the second cross-section. This second cross-section serves as a reference plane perpendicular to the rotation axis of the second support arm 1020 and the rotation axis of the second swing arm 1021.

[0078] Additionally, you can continue to refer to Figure 5b The third slide groove 10191 may be provided with a third slide rail 101911, the second support arm 1020 may be provided with a third slider 102001, the fourth slide groove 10192 may be provided with a fourth slide rail 101921, and the second swing arm 1021 may be provided with a fourth slider 102102. The arrangement of the third slide rail 101911 can refer to that of the first slide rail 101511, the arrangement of the third slider 102001 can refer to that of the first slider 10121, the arrangement of the fourth slide rail 101921 can refer to that of the second slide rail 101521, and the arrangement of the fourth slider 102102 can refer to that of the second slider 10132; these details will not be elaborated upon here.

[0079] In this application, the second swing arm 1021 can be referred to Figure 7 The first swing arm 1013 shown is configured to achieve a rotatable connection between the second swing arm 1021 and the base 106, as can be referred to Figure 8 The base 106 includes a second arc-shaped groove 1064, and the second swing arm 1021 is provided with a second arc-shaped rotating block 102101 (see reference). Figure 5b Additionally, please refer to... Figure 8 Alternatively, a second arc-shaped protrusion 10142 can be provided on the surface of the cover plate 1014 facing the second arc-shaped groove 1064. The second arc-shaped groove 1064 can be set with reference to the first arc-shaped groove 1063, the second arc-shaped rotating block 102101 can be set with reference to the first arc-shaped rotating block 10131, and the second arc-shaped protrusion 10142 can be set with reference to the first arc-shaped protrusion 10141. These will not be described in detail here.

[0080] Having understood the connection relationship between the first rotating component 101a and the second rotating component 101b and the base 106 provided in the above embodiments of this application, the movement of the rotating shaft mechanism will now be described. First, refer to... Figure 10a , Figure 10a A schematic diagram of the rotating shaft mechanism in its unfolded state is shown. At this time, the distance between the edge of the first housing bracket 1015 facing the base 106 and the base 106 is the closest, and the distance between the second slider 10132 of the first swing arm 1013 and the first surface 1015a of the first housing bracket 1015 is the closest.

[0081] As described in the above embodiments, when the rotating shaft mechanism rotates from the unfolded state to the closed state, the first support arm 1012 can slide in the first slide groove 10151 along the first direction, and the first swing arm 1013 can slide in the second slide groove 10152 along the second direction. Similarly, the second support arm 1020 can slide in the third slide groove 10191 along the third direction, and the second swing arm 1021 can slide in the fourth slide groove 10192 along the fourth direction. Figure 10a In the diagram, solid lines with arrows represent the first and third directions, while dashed lines with arrows represent the second and fourth directions. Additionally, see [reference needed]. Figure 10b , Figure 10b A schematic diagram of a first cross-section provided in a possible embodiment is shown, in which a first direction and a second direction intersect, and the angle of their intersection can be an acute angle as shown in the diagram, or other possible angles, such as a right angle or an obtuse angle. Furthermore, within the second cross-section, the positional relationship between the third direction and the fourth direction can be... Figure 10b The positional relationship between the first and second directions shown is symmetrical, and will not be elaborated here.

[0082] For reference Figure 10c , Figure 10c This is a schematic diagram of the rotating shaft mechanism in its intermediate state. (Comparison) Figure 10c and Figure 10aAs can be seen, during this process, the first housing fixing frame 1015 can move away from the base 106 relative to the first support arm 1012, and drive the first support arm 1012 and the first swing arm 1013 to rotate around the base 106. The first arc-shaped rotating block 10131 of the first swing arm 1013 moves in the direction of sliding out of the corresponding first arc-shaped groove 1063, thereby reducing the portion of the first arc-shaped rotating block 10131 housed in the corresponding first arc-shaped groove 1063. At the same time, the second slider 10132 of the first swing arm 1013 slides from the first surface 1015a to the second surface 1015b of the first housing fixing frame 1015 within the second slide rail 101521. Similarly, the second housing fixing frame 1019 can drive the second support arm 1020 and the second swing arm 1021 to rotate around the base. Its specific movement process is similar to the movement process of the first housing fixing frame 1015 driving the first support arm 1012 and the first swing arm 1013 to rotate around the base 106, and will not be described in detail here.

[0083] Additionally, refer to Figure 10d , Figure 10d This is a schematic diagram of the rotating shaft mechanism in the closed state. Figures 10c to 10d During the process, the first housing fixing frame 1015 continues to move away from the base 106 relative to the first support arm 1012, and drives the first support arm 1012 to rotate around the base 106. The first arc-shaped rotating block 10131 of the first swing arm 1013 continues to move in the direction of sliding out of the corresponding first arc-shaped groove 1063, thereby further reducing the portion of the first arc-shaped rotating block 10131 housed in the corresponding first arc-shaped groove 1063. At the same time, the second slider 10132 of the first swing arm 1013 continues to slide in the second groove 10152 in the direction toward the second surface 1015b of the first housing fixing frame 1015. Similarly, the second housing fixing frame 1019 can drive the second support arm 1020 and the second swing arm 1021 to continue to rotate around the base. The specific movement process is similar to the movement process of the first housing fixing frame 1015 driving the first support arm 1012 and the first swing arm 1013 to rotate around the base 106, and will not be described in detail here.

[0084] Understandably, when electronic devices are... Figure 10d The closed state shown Figure 10a When rotated in the unfolded state shown, the first housing fixing frame 1015, the first support arm 1012, and the first swing arm 1013, as well as the second housing fixing frame 1019, the second support arm 1020, and the second swing arm 1021, can respectively rotate along the aforementioned... Figures 10a to 10d The rotation process is in the opposite direction of the movement, which will not be elaborated here.

[0085] Reference Figure 11 , Figure 11This is a schematic diagram illustrating the mechanism by which the first support arm 1012 and the first swing arm 1013 slide relative to the first housing fixing frame 1015, as provided in an embodiment of this application. Figure 11 As can be seen, using the rotating shaft mechanism 1 provided in this application, the rotation axes of the first support arm 1012 and the first swing arm 1013 do not coincide when they rotate around the base 106, thus achieving a phase difference in the axial centers between the first support arm 1012 and the first swing arm 1013. Furthermore, by rationally designing the opening directions of the first slide groove 10151 and the second slide groove 10152, the rotation angles of the first support arm 1012 and the first swing arm 1013 relative to the base 106 can both be no greater than 90°. Compared with existing solutions, this effectively reduces the rotation angle of the first swing arm 1013, thereby improving the local structure of the first swing arm 1013 (e.g., ...). Figure 7 The wall thickness design of the structure at point A of the first swing arm 1013 shown meets the strength requirements, thereby improving the structural reliability of the first swing arm 1013. It is understandable that... Figure 11 This can also be used to illustrate the mechanism principle of the sliding of the second support arm 1020 and the second swing arm 1021 relative to the second housing fixing frame 1019. As can be seen from the above analysis, in this application, by rationally designing the opening direction of the third slide groove 10191 and the fourth slide groove 10192, the rotation angles of the second support arm 1020 and the second swing arm 1021 relative to the base 106 can both be no greater than 90°, thereby reducing the rotation angle of the second swing arm 1021 and ensuring that the wall thickness design of the local structure of the second swing arm 1021 meets the strength requirements, thus improving the structural reliability of the second swing arm 1021. Furthermore, when this rotating shaft mechanism 1 is used in electronic devices, it can effectively avoid the need for thinning the components in the electronic device to avoid the rotation of the first swing arm 1013 and the second swing arm 1021, which can improve the overall structural reliability of the electronic device.

[0086] Additionally, you can continue to refer to Figure 10d When the rotating shaft mechanism is in the closed state, due to the first support arm 1012 and the first swing arm 1013 being in... Figure 10dAs shown, a supporting force exists in the Z direction for the first housing fixing frame 1015, which effectively improves the kinematic engagement between the first support arm 1012 and the first swing arm 1013 and the first housing fixing frame 1015, and also acts as a stop for the first housing fixing frame 1015 in this direction. Similarly, the second support arm 1020 and the second swing arm 1021 can also provide a supporting force for the second housing fixing frame 1019 in the Z direction, which effectively improves the kinematic engagement between the second support arm 1020 and the second swing arm 1021 and the second housing fixing frame 1019, and also acts as a stop for the second housing fixing frame 1019 in this direction. In this way, even if the electronic device using this rotating mechanism falls in the closed state, the risk of a large instantaneous displacement of the first housing fixing frame 1015 and the second housing fixing frame 1019 relative to the rotating mechanism in this state can be effectively reduced, thereby ensuring the reliability of the overall structure of the electronic device.

[0087] In this application, the second slider 10132 of the first swing arm 1013 can be adopted as follows: Figure 7 The linear slider shown can also be adapted to the second slide rail 101521 as follows: Figure 10a The straight slide is shown. Additionally, the straight slide has an opening located on the first surface 1015a, when the rotating shaft mechanism is in... Figure 10a In the unfolded state shown, the straight slide extends from the opening toward the base 106 to improve the smoothness of the second slider 10132 sliding along the second slide 101521 and reduce interference from other structures of the pivot mechanism on the first swing arm 1013. This facilitates increasing the wall thickness of the first swing arm 1013, thereby improving its structural reliability. In other possible implementations of this application, the straight slide may extend from the opening toward the direction away from the base, or it may extend from the opening toward a direction perpendicular to the second surface 1015b, making the arrangement of the second slide 101521 more flexible. It is worth mentioning that in this application, the second slider 10132 can also be other shapes adapted to the straight slide. For example, it can be a slider with a straight body and a hollow or spaced design in the middle, or it can be some irregularly shaped sliders, as long as the slider can conform to the shape of the straight slide for sliding.

[0088] In this application, the fourth slide rail 101921 can be symmetrically arranged with the second slide rail 101521. Its specific arrangement can be referred to that of the second slide rail 101521, and will not be elaborated here. Furthermore, the fourth slider 102102 can be a straight slider or other shapes adapted to a straight slide rail. For example, it can be a slider with an overall straight shape and a hollow or spaced design in the middle, or it can be some irregularly shaped slider. Any slider that can conform to the shape of the straight slide rail for sliding is acceptable.

[0089] In addition to the linear structure described above, the second slider 10132 of the first swing arm 1013 can also be designed with other possible structures. For example, see [reference needed]. Figure 12 , Figure 12 This is a schematic diagram of the structure of the first swing arm 1013 provided for another possible embodiment of this application. In this embodiment, the second slider 10132 of the first swing arm 1013 can also be designed as an arc-shaped slider, which can be exemplarily a circular arc-shaped slider. Furthermore, in order for the arc-shaped slider of the first swing arm 1013 to slide within the second slide rail 101521 of the second slide groove 10152 of the first housing fixing frame 1015, the second slide rail 101521 can also be... Figure 10a The straight slide shown can be adapted to an arc-shaped slide, which can be exemplarily a circular arc slide. When the rotating shaft mechanism is in the deployed state, the axis of the arc-shaped slide is located on the side opposite to the base 106. This improves the smoothness of the second slider 10132 sliding along the second slide 101521 and allows the first swing arm 1013 to rotate at a 90° angle relative to the base 106, effectively reducing interference from other structures of the rotating shaft mechanism on the movement of the first swing arm 1013, thereby allowing for an increase in the wall thickness of the first swing arm 1013. Furthermore, Figure 12 This can also refer to the structure of the second swing arm 1021. Its specific configuration can be referred to the above description of the first swing arm 1013, and will not be repeated here.

[0090] In this embodiment, the sliding of the first swing arm 1013 within the second slide groove 10152 and the sliding of the second swing arm 1021 within the fourth slide groove 10192 are equivalent to the sliding of the arc-shaped slider within the arc-shaped slide rail. For specific implementation, please refer to... Figure 13a , Figure 13a The diagram shown is a structural schematic of the rotating shaft mechanism in the unfolded state. At this time, the distance between the edge of the first housing fixing frame 1015 facing the base 106 and the base 106 is the closest, and the distance between the second slider 10132 of the first swing arm 1013 and the first surface 1015a of the first housing fixing frame 1015 is the closest.

[0091] As described in the above embodiments, when the rotating shaft mechanism rotates from the unfolded state to the closed state, the first support arm 1012 can slide in the first slide groove 10151 along a first direction, and the first support arm 1012 can slide in the second slide groove 10152 along a second direction. Similarly, the second support arm 1020 can slide in the third slide groove 10191 along a third direction, and the second swing arm 1021 can slide in the fourth slide groove 10192 along a fourth direction. Figure 13a In the diagram, solid lines with arrows represent the first and third directions, while dashed lines with arrows represent the second and fourth directions. Additionally, refer to... Figure 13b , Figure 13b A schematic diagram of a first cross-section provided by a possible embodiment is shown, in which a first direction and a second direction intersect. Furthermore, within a second cross-section, the positional relationship between a third direction and a fourth direction may be... Figure 13b The positional relationship between the first and second directions shown is symmetrical, and will not be elaborated here.

[0092] It should be noted that, in this application, the projection of the second direction onto the first cross-section is not parallel to the projection of the first direction onto the first cross-section, and the projection of the fourth direction onto the second cross-section is not parallel to the projection of the third direction onto the second cross-section. This can refer to situations where the two directions are not parallel. Figure 10b and Figure 13b In addition to the intersection shown, it can also refer to the two being in the same position as... Figure 13c The tangent relationship shown, or as... Figure 13d The phase separation relationship shown is not specifically limited in this application.

[0093] As the rotating shaft mechanism rotates from the extended state to the closed state, the first support arm 1012 can move along the first slide groove. Figure 13a As shown, the first direction of sliding, the first swing arm 1013 can slide within the second groove along... Figure 13a The second direction of sliding is shown. Additionally, refer to... Figure 14 , Figure 14 This is a schematic diagram of the rotating shaft mechanism in its intermediate state. (Comparison) Figure 14 and Figure 13aAs can be seen, during this process, the first housing fixing frame 1015 can move away from the base 106 relative to the first support arm 1012, and drive the first support arm 1012 and the first swing arm 1013 to rotate around the base 106. The first arc-shaped rotating block 10131 of the first swing arm 1013 moves in the direction of sliding out of the corresponding first arc-shaped groove 1063, thereby reducing the portion of the first arc-shaped rotating block 10131 housed in the corresponding first arc-shaped groove 1063. At the same time, the second slider 10132 of the first swing arm 1013 slides from the first surface 1015a to the second surface 1015b of the first housing fixing frame 1015 within the second slide rail 101521. Similarly, the second housing fixing frame 1019 can drive the second support arm 1020 and the second swing arm 1021 to rotate around the base. Its specific movement process is similar to the movement process of the first housing fixing frame 1015 driving the first support arm 1012 and the first swing arm 1013 to rotate around the base 106, and will not be described in detail here.

[0094] Additionally, refer to Figure 15 , Figure 15 This is a schematic diagram of the rotating shaft mechanism in the closed state. Figures 14 to 15 During the process, the first housing fixing frame 1015 continues to move away from the base 106 relative to the first support arm 1012, and drives the first support arm 1012 and the first swing arm 1013 to continue rotating around the base 106. The first arc-shaped rotating block 10131 of the first swing arm 1013 continues to move in the direction of sliding out of the corresponding first arc-shaped groove 1063, thereby further reducing the portion of the first arc-shaped rotating block 10131 housed in the corresponding first arc-shaped groove 1063. At the same time, the second slider 10132 of the first swing arm 1013 continues to slide in the second slide rail 101521 in the direction toward the second surface 1015b of the first housing fixing frame 1015. Similarly, the second housing fixing frame 1019 can drive the second support arm 1020 and the second swing arm 1021 to continue rotating around the base. Its specific movement process is similar to the movement process of the first housing fixing frame 1015 driving the first support arm 1012 and the first swing arm 1013 to rotate around the base 106, and will not be described in detail here.

[0095] It is understandable that when the rotating shaft mechanism is... Figure 15 The closed state shown Figure 13a When rotated in the unfolded state shown, the first housing fixing frame 1015, the first support arm 1012, and the first swing arm 1013, as well as the second housing fixing frame 1019, the second support arm 1020, and the second swing arm 1021, can respectively rotate along the aforementioned... Figures 13a to 15 The rotation process is in the opposite direction of the movement, which will not be elaborated here.

[0096] In some other possible embodiments of this application, when the rotating shaft mechanism is in the unfolded state, the axis of the arc-shaped slide can also be located on the side of the arc-shaped slide facing the base 106. Thus, during the rotation of the rotating shaft mechanism from the unfolded state to the closed state, the second slider 10132 of the first swing arm 1013 slides within the second slide 101521 from the second surface 1015b of the first housing fixing frame 1015 in a direction toward the first surface 1015a. Conversely, during the rotation of the rotating shaft mechanism from the closed state to the unfolded state, the second slider 10132 of the first swing arm 1013 slides within the second slide 101521 from the first surface 1015a of the first housing fixing frame 1015 in a direction toward the second surface 1015b.

[0097] It is worth mentioning that, in this application, when the second slide rail 101521 is an arc-shaped slide rail, the second slider 10132 can also be other shapes adapted to the arc-shaped slide rail. For example, it can be an integral arc-shaped slider with hollowed-out or spaced-out designs in the middle, or it can be some irregularly shaped sliders. Any slider that can conform to the shape of the arc-shaped slide rail for sliding is acceptable. In addition, when the second slide rail 101521 is a circular arc-shaped slide rail, the sliding of the second slider 10132 within the second slide rail 101521 can also be understood as the second slider 10132 rotating around the first housing fixing frame 1015 through the circular arc-shaped slide rail.

[0098] In this application, the fourth slide rail 101921 can be symmetrically arranged with the second slide rail 101521. Its specific arrangement can be referred to the second slide rail 101521, and will not be elaborated here. Furthermore, the fourth slider 102102 can be an arc-shaped slider or other shapes adapted to the arc-shaped slide rail. For example, it can be an integral arc shape with a hollowed-out or spaced section in the middle, or it can be some irregularly shaped slider. Any slider that can conform to the shape of the arc-shaped slide rail for sliding is acceptable. Additionally, when the fourth slide rail 101921 is an arc-shaped slide rail, the sliding of the fourth slider 102102 within the fourth slide rail 101921 can also be understood as the fourth slider 102102 rotating around the second housing fixing frame 1019 via the arc-shaped slide rail.

[0099] In various embodiments of this application, in order to improve the consistency and smoothness of the movement of the first support arm 1012 and the first swing arm 1013 located on the same side, and the degree of engagement between the first support arm 1012 and the first swing arm 1013 and the corresponding slide groove, reference can be made to... Figure 16a , Figure 16aThis illustration shows a schematic diagram of the connection structure between a first support arm 1012 and a first swing arm 1013 according to an embodiment of this application. A first drive link 1016a may be provided between the first support arm 1012 and the first swing arm 1013, and the first drive link 1016a can be rotatably connected to both the first support arm 1012 and the first swing arm 1013. For specific implementation, please refer to... Figure 16b , Figure 16b This is a schematic diagram of the structure of a first drive link 1016a provided for a possible embodiment of this application. The first drive link 1016a may include a first connecting portion 10161 and a second connecting portion 10162.

[0100] For reference Figure 16c , Figure 16c A schematic diagram of the structure of the first support arm 1012 provided in one possible embodiment of this application is shown. See also... Figure 16b and Figure 16c In this application, the first connecting portion 10161 of the first drive link 1016a can be connected to the first mounting hole 10122 of the first support arm 1012. The second connecting portion 10162 of the first drive link 1016a can be connected to... Figure 7 or Figure 12 The second mounting hole 10135 of the first swing arm 1013 shown is connected.

[0101] Additionally, you can refer to Figure 17 , Figure 17 for Figure 16a The cross-sectional view at BB of the structure shown. See also... Figure 16b and Figure 16c The first connecting part 10161 is rotatably connected to the first support arm 1012 via the first connecting rod 10163, and the second connecting part 10162 is rotatably connected to the swing arm 1013 via the second connecting rod 10164. It is worth noting that the axes of the first connecting rod 10163 and the second connecting rod 10164 do not coincide, in order to reduce the risk of interference to the respective movements of the first support arm 1012 and the first swing arm 1013.

[0102] By providing a first driving link 1016a between the first support arm 1012 and the first swing arm 1013, when the rotating shaft mechanism is in the closed state, the first support arm 1012, the first swing arm 1013, and the first driving link 1016a can jointly support the first housing fixing frame 1015. This effectively improves the kinematic engagement between the first support arm 1012, the first swing arm 1013, and the first housing fixing frame 1015, while also providing a stop for the first housing fixing frame 1015. Thus, even if an electronic device using this rotating shaft mechanism is dropped in the closed state, the risk of a large instantaneous displacement of the first housing fixing frame 1015 relative to the rotating shaft mechanism can be effectively reduced, thereby ensuring the reliability of the overall structure of the electronic device.

[0103] To avoid over-restraining the movement of the first support arm 1012 and the first swing arm 1013 due to the configuration of the first drive link 1016a, it is also possible to refer to Figure 18 , Figure 18 for Figure 16a A cross-sectional view at point C. In this embodiment, the second slider 10132 of the first swing arm 1013 can be thinned so that the second slider 10132 of the first swing arm 1013 and the second slide rail 101521 of the first housing fixing frame 1015 can be clearance-fitted. For specific implementation, refer to... Figure 19 , Figure 19 A schematic diagram of the structure of the first rocker arm 1013 provided in another possible embodiment is shown. In this embodiment, the thickness of the second slider 10132 of the first rocker arm 1013 is reduced, so that the second slider 10132 and... Figure 18 There is a gap between the sidewalls of the second slide rail 101521 shown. In this case, the shape of the second slider 10132 can be matched with the shape of the second slide rail 101521. For example, when the second slide rail 101521 is a rectangular slide rail, the second slider 10132 can be set as a rectangular slider. Alternatively, the second slider 10132 can also be set as a pin, so that the second slider 10132 can slide within the second slide rail 101521 while also rotating relative to the second slide rail 101521. This increases the degree of freedom of movement of the first swing arm 1013 during the sliding of the second slider 10132 along the second slide rail 101521, while also ensuring the reliability of the engagement between the first swing arm 1013 and the second groove 10152 of the first housing fixing frame 1015.

[0104] It should be noted that in the above embodiment, the first drive link 1016a is rotatably connected to the first support arm 1012 via the first link 10163, and rotatably connected to the first swing arm 1013 via the second link 10164. This allows the first support arm 1012, the first link 10163, the first swing arm 1013, and the second link 10164 to form a four-bar linkage. It is understood that by adjusting the lengths of the links in this four-bar linkage, the resulting four-bar structure can be either parallelogram-shaped or non-parallelogram-shaped.

[0105] In addition to the configuration provided in the above embodiments, the first drive linkage 1016a can also be referred to... Figure 20a , Figure 20a A schematic diagram of the connection structure between the first support arm 1012 and the first swing arm 1013 according to another embodiment of this application is shown. In this embodiment, the first drive link 1016a is also located between the first support arm 1012 and the first swing arm 1013. Unlike the above embodiment, in this embodiment, the first connecting part 10161 of the first drive link 1016a is slidably connected to the first swing arm 1013 through the first link 10163, and the second connecting part 10162 is fixedly connected to the first support arm 1012.

[0106] For reference Figure 20b , Figure 20b A schematic diagram of the structure of a first swing arm provided for another possible embodiment of this application. See also... Figure 20a and Figure 20b The end of the first swing arm 1013 facing the first support arm 1012 may be provided with a first guide groove 10134, and the first connecting rod 10163 may be inserted into the first guide groove 10134 and slide along the groove surface of the first guide groove 10134, thereby realizing the sliding connection between the first connecting rod 10163 and the first swing arm 1013.

[0107] Additionally, refer to Figure 20c , Figure 20c A schematic diagram showing the connection between the first drive link 1016a and the first support arm 1012 is provided. In this application, the second connecting portion 10162 of the first drive link 1016a can be fixedly connected to the first support arm 1012 by means of adhesion or threaded connection. In some other possible embodiments of this application, the first drive link 1016a and the first support arm 1012 can also be integrally formed.

[0108] It is understood that in some possible embodiments of this application, the first drive link 1016a can also be slidably connected to the first support arm 1012 and fixedly connected to the first swing arm 1013. The specific arrangement is similar to the embodiment described above in which the first drive link 1016a is slidably connected to the first swing arm 1013 and fixedly connected to the first support arm 1012, and will not be described in detail here.

[0109] By adopting this configuration, the first drive link 1016a can improve the engagement between the first support arm 1012 and the first swing arm 1013 and their corresponding sliding grooves through reasonable design of the first guide groove 10134. This improves the consistency of movement of the first support arm 1012 and the first swing arm 1013, and makes their movement smoother. Furthermore, when an electronic device using this pivot mechanism is dropped while in a closed state, the first support arm 1012, the first swing arm 1013, and the first drive link 1016a can jointly support the housing of the electronic device, thereby preventing a large instantaneous displacement of the housing relative to the pivot mechanism and improving the overall reliability of the electronic device structure.

[0110] In addition, in this embodiment, in order to avoid the first drive link 1016a from causing excessive constraint on the movement of the first support arm 1012 and the first swing arm 1013, the second slider 10132 of the first swing arm 1013 can be thinned so that the second slider 10132 of the first swing arm 1013 is in clearance fit with the second slide rail 101521 of the first housing fixing frame 1015. The specific setting method can be referred to the above embodiment, and will not be repeated here.

[0111] It is worth mentioning that, for reference Figure 10a In the second rotating assembly 101b, a second driving link 1016b may be provided between the second support arm 1020 and the second swing arm 1021. The second driving link 1016b may include a third connecting part. Figure 10a (not shown in the image) and the fourth connecting part ( Figure 10a (Not shown in the image) The third connecting part can be connected to the second swing arm 1021, and the fourth connecting part can be connected to the second support arm 1020. The specific arrangement of the second drive link 1016b, the connection method between the third connecting part and the second swing arm 1021, and the connection method between the fourth connecting part and the second support arm 1020 can all be set with reference to the first rotating assembly 101a side, and will not be described in detail here.

[0112] You can continue to refer to Figure 5a In this application, the rotating shaft mechanism 1, in addition to the above-described structure, may also include a first support plate 102 and a second support plate 103, wherein the first support plate 102 and the second support plate 103 may be respectively disposed on... Figure 6 In this application, the first support plate 102 and the second support plate 103 can be symmetrically arranged relative to the base 106. In the following embodiments, the specific arrangement of the first support plate 102 and the connection relationship between the first support plate 102 and the base 106 are mainly used as examples for explanation, while the second support plate 103 side can be set with reference to the first support plate 102 side.

[0113] In this application, the first support plate 102 and the first housing fixing frame 1015 are rotatably connected. It should be noted that in this application, the first support plate 102 can be rotatably connected to multiple first housing fixing frames 1015 of multiple spindle modules 101, which helps to simplify the structure of the rotating shaft mechanism 1 and improve the structural reliability of the rotating shaft mechanism 1.

[0114] When specifically connecting the first support plate 102 and the first housing fixing frame 1015 by rotation, you can first refer to the following: Figure 9 The first housing mounting bracket 1015 shown may also be provided with a first rotating groove 10153, which may be an arc-shaped groove. Additionally, see [reference needed]. Figure 21 , Figure 21 This is a schematic diagram of the structure of a first support plate 102 provided in a possible embodiment of this application. A first rotating portion 10201 may be provided at the end of the first support plate 102 facing the first housing fixing frame 1015. This first rotating portion 10201 may be arc-shaped, for example, a circular arc. Thus, the first rotating portion 10201 can be installed in the first rotating groove 10153, and the relative rotation between the first support plate 102 and the first housing fixing frame 1015 can be achieved by rotating the first rotating portion 10201 along the groove surface of the first rotating groove 10153.

[0115] You can continue to refer to Figure 21 The first support plate 102 includes a first plate surface 102a and a second plate surface 102b disposed opposite to each other, wherein the first plate surface 102a can be used to support the flexible display screen. For specific implementation, refer to... Figure 22 , Figure 22 This is a schematic diagram illustrating the structure of a first support plate 102 supporting a flexible display screen 4, provided as a possible embodiment of this application. Figure 21 In the middle, the electronic device is in the unfolded state, at this time the first plate surface 102a of the first support plate 102 and the cover plate ( Figure 21 The surfaces (not shown) facing the flexible display screen 4 can be in the same plane, thereby achieving flat support for the flexible display screen 4.

[0116] Reference Figure 23 , Figure 23A cross-sectional view of a rotating shaft mechanism 1 provided for one possible embodiment of this application. Figure 23 This can be used to demonstrate the structure of the second surface 102b of the first support plate 102, and the connection relationship between the first support plate 102 and other structures. The second surface 102b of the first support plate 102 may be provided with a first guide portion 10202, which may have a first track groove 102021. Additionally, in this application, the first swing arm 1013 may also be provided with a first guide structure 10133. This first guide structure 10133 may be, but is not limited to, a columnar structure, and may be inserted into the first track groove 102021 of the first guide portion 10202 of the first support plate 102, and may slide along the first track groove 102021. Thus, during the rotation of the first swing arm 1013 around the base 106, the sliding of the first guide structure 10133 within the first track groove 102021 can drive the first support plate 102 to rotate around the corresponding side of the first housing fixing frame 1015. For example, when the two housing brackets rotate towards each other, the two swing arms rotate towards each other around the base 106, thereby causing the ends of the two support plates near the base 106 to move in directions away from the base 106. Thus, it can be referred to... Figure 24 , Figure 24 The diagram demonstrates that when the electronic device is in a closed state, the first support plate 102, the second support plate 103, and the cover plate 1014 can form a screen-accommodating space 104, within which the bent portion of the flexible display screen 4 can be accommodated. This avoids compressing the flexible display screen 4, thereby reducing the risk of damage to it.

[0117] As described above, to facilitate the sliding of the first guide structure 10133 along the first track groove 102021, the first guide structure 10133 can be configured as a columnar structure, such as a pin. Furthermore, to enable the first guide structure 10133 to slide along the first track groove 102021 during the rotation of the first swing arm 1013 around the base 106, the first guide structure 10133 can be connected to the first swing arm 1013, allowing them to rotate synchronously. In this application, the connection method between the first guide structure 10133 and the first swing arm 1013 is not specifically limited; for example, refer to... Figure 25 , Figure 25 This is a partial structural diagram of a rotating shaft mechanism provided in one possible embodiment of this application. To facilitate illustrating the connection relationship between the first guide structure 10133 and the first swing arm 1013, Figure 25 The first support plate 102 is omitted (see reference). Figure 24In this embodiment, a first protrusion 101331 may be provided at one end of the first guide structure 10133. The first protrusion 101331 may be arranged circumferentially around the end of the first guide structure 10133. The first protrusion 101331 may be a continuous annular structure arranged circumferentially around the first guide structure 10133, or one or more spaced segmental structures arranged circumferentially around the first guide structure 10133, or multiple point structures arranged circumferentially around the first guide structure 10133, etc.

[0118] Additionally, you can refer to Figure 26 , Figure 26 for Figure 25 The diagram shows a cross-sectional view of the rotating shaft mechanism. The first swing arm 1013 may have a first insertion hole 10136, and a first groove 101361 may be provided on the wall of the first insertion hole 10136. Thus, when the first guide structure 10133 is installed on the first swing arm 1013, the first guide structure 10133 can be inserted into the first insertion hole 10136, and the first protrusion 101331 can be engaged with the first groove 101361, thereby achieving the connection between the first guide structure 10133 and the first swing arm 1013. Furthermore, when it is necessary to remove the first guide structure 10133 from the first swing arm 1013, a larger pull-out force can be applied to the first guide structure 10133 to disengage the first protrusion 101331 from the first groove 101361.

[0119] In this application, the first guide structure 10133 and the first swing arm 1013 are detachably connected by a snap-fit ​​mechanism using a first protrusion 101331 and a first groove 101361. This ensures the reliability of the connection between the first guide structure 10133 and the first swing arm 1013 while effectively reducing the number of connecting parts, thus simplifying the structure of the rotating shaft mechanism. Furthermore, the detachable connection between the first guide structure 10133 and the first swing arm 1013 effectively improves the ease of maintenance of the rotating shaft mechanism.

[0120] It is understandable that when the first swing arm 1013 and the first support plate 102 are connected by the first guide structure 10133, the first guide structure 10133 can pass through the first insertion hole 10136 and the first track groove 102021 in sequence (see reference). Figure 23 The assembly of the first guide structure 10133, the first swing arm 1013, and the first support plate 102 is completed when the first protrusion 101331 engages with the first groove 101361. This assembly method is convenient and quick, thus effectively improving assembly efficiency.

[0121] In another possible embodiment of this application, the first support arm 1012 can also drive the first support plate 102 to rotate around the first housing fixing frame 1015. Specifically, the second plate surface 102b of the first support plate 102 may be provided with a first guide portion 10202, which may have a first track groove 102021. Additionally, a first guide structure 10133 may be provided on the first support arm 1012. This first guide structure 10133 may be, but is not limited to, a columnar structure, and it can be inserted into the first track groove 102021 of the first guide portion 10202 of the first support plate 102, and can slide along the first track groove 102021. Thus, during the rotation of the first support arm 1012 around the base 106, the sliding of the first guide structure 10133 within the first track groove 102021 can drive the first support plate 102 to rotate around the first housing fixing frame 1015. It is understood that, in this embodiment, the first guide structure 10133 may also refer to the above description. Figure 25 Alternatively, the first support arm 1012 can be configured to have a first insertion hole 10136, and a first groove 101361 can be provided on the wall of the first insertion hole 10136, so that the first guide structure 10133 and the first support arm 1012 can be detachably connected through the snap-fit ​​of the first protrusion 101331 and the first groove 101361.

[0122] In some possible embodiments of this application, the first support plate 102 can also be slidably connected to both the first support arm 1012 and the first swing arm 1013. The method of slid connection can be referred to in the above embodiments, and will not be repeated here. Thus, the rotation of the first support arm 1012 and the first swing arm 1013 around the base 106 drives the rotation of the first support plate 102 around the first housing fixing frame 1015. In this embodiment, the first guide structure 10133 can also be referred to in the above embodiments. Figure 25 The first guide structure 10133 is configured such that one of the first swing arm 1013 and the first support arm 1012 is provided with a first insertion hole 10136, and a first groove 101361 is provided on the hole wall of the first insertion hole 10136, so as to realize the detachable connection between the first guide structure 10133 and the first swing arm 1013 and the first support arm 1012.

[0123] Besides the snap-fit ​​connection described above, the first guide structure 10133 and the first swing arm 1013 can also be connected in other possible ways. For example, refer to... Figure 27 , Figure 27This is a cross-sectional view of a rotating shaft mechanism provided in another possible embodiment of this application. In this embodiment, the first guide structure 10133 is rotatably connected to the first swing arm 1013. In specific implementation, the first guide structure 10133 and the first swing arm 1013 can be rotatably connected via a pin.

[0124] Additionally, you can refer to Figure 28 , Figure 28 This is a schematic diagram of the structure of a first support plate 102 provided for another possible embodiment of this application. In this embodiment, the second plate surface 102b of the first support plate 102 may be provided with a first guide portion 10202, and the first guide portion 10202 may be provided with a first track groove 102021, wherein the first track groove 102021 may be a sliding groove formed on the first guide portion 10202, and the sliding groove may be, for example, a straight sliding groove.

[0125] You can continue to refer to Figure 27 When the rotating shaft mechanism is in the unfolded state, the first track groove 102021 has a first opening 1020211 facing the base 106. The first guide structure 10133 can be inserted into the first track groove 102021 through the first opening 1020211 and can slide along the first track groove 102021. In this way, during the rotation of the first swing arm 1013 around the base 106, the first guide structure 10133 can be driven to rotate around the first swing arm 1013. In addition, through the sliding of the first guide structure 10133 in the first track groove 102021, the first support plate 102 is driven to rotate around the first housing fixing frame 1015 on the corresponding side.

[0126] In this embodiment of the application, by rotatably connecting the first guide structure 10133 to the first swing arm 1013 and allowing the first guide structure 10133 to slide along the first track groove 102021 of the first support plate 102, the stability of the first swing arm 1013 driving the first support plate 102 can be effectively improved. Furthermore, when the electronic device is in the unfolded state, the flatness of the first support plate 102 supporting the flexible display screen can be effectively improved. Additionally, when the electronic device is in the closed state, the risk of the first support plate 102 squeezing the flexible display screen during a drop can be reduced, thereby improving the overall structural reliability of the device.

[0127] It is understandable that when the first guide structure 10133 adopts Figure 27In the structure shown, the first guide structure 10133 can also be rotatably connected to the first support arm 1012, so that the rotation of the first support arm 1012 around the base 106 drives the first support plate 102 to rotate around the first housing fixing frame 1015. Alternatively, the first guide structure 10133 can be rotatably connected to both the first support arm 1012 and the first swing arm 1013, so that the rotation of the first support arm 1012 and the first swing arm 1013 around the base 106 drives the rotation of the first support plate 102 around the first housing fixing frame 1015. The specific connection method between the first guide structure 10133 and the first support arm 1012 and / or the first swing arm 1013 can be referred to the above. Figure 27 The embodiments shown are not described in detail here.

[0128] Since the second support plate 103 is symmetrically arranged with the first support plate 102, when specifically setting the second support plate 103, the second support plate 103 can be rotatably connected to the second housing fixing frame 1019. (Refer to...) Figure 23 The second housing fixing frame 1019 has a second rotating groove 10193. Additionally, the second support plate 103 may be provided with a second rotating part 1031, allowing the second rotating part 1031 to rotate along the groove surface of the second rotating groove 10193. The second support plate 103 may also be provided with a second guide part 1032, which has a second trajectory groove 10321. Furthermore, the second support arm 1020 and / or the second swing arm 1021 may be provided with a second guide structure 102103, which can be inserted into the second trajectory groove 10321 and slide along it. Thus, when the second support arm 1020 and / or the second swing arm 1021 rotate, the sliding of the second guide structure 102103 within the second trajectory groove 10321 causes the second support plate 103 to rotate around the second housing fixing frame 1019.

[0129] In this application, the second guiding structure 102103 may be referred to Figure 25 and Figure 26The first guide structure 10133 shown is configured such that, exemplarily, the second guide structure 102103 can be configured as a columnar structure, such as a pin. Additionally, one end of the second guide structure 102103 may be provided with a second protrusion 1021031, which is circumferentially arranged around the end of the second guide structure 102103. The second protrusion 1021031 may be a continuous annular structure circumferentially arranged around the second guide structure 102103, or one or more discontinuous segmental structures circumferentially arranged around the second guide structure 102103, or multiple point structures circumferentially arranged around the second guide structure 102103, etc. Furthermore, the second swing arm 1021 or the second support arm 1020 may have a second insertion hole 102104, and a second groove 1021041 may be provided on the wall of the second insertion hole 102104. In this way, the second guide structure 102103 can be inserted into the second insertion hole 102104, and the second protrusion 1021031 can be engaged with the second groove 1021041, thereby realizing the connection between the second guide structure 102103 and the second swing arm 1021 or the second support arm 1020. In addition, when it is necessary to pull the second guide structure 102103 out of the second insertion hole 102104, a larger pulling force can be applied to the second guide structure 102103 to make the second protrusion 1021031 disengage from the second groove 1021041, thereby realizing the detachable connection between the second guide structure 102103 and the second swing arm 1021 and / or the second support arm 1020.

[0130] In addition, the second guide structure 102103 can also be referenced. Figure 27 The first guide structure 10133 shown is configured. In a specific implementation, the second guide structure 102103 can be rotatably connected to the second swing arm 1021 and / or the second support arm 1020 via a pin, and the second guide structure 102103 can slide along the second track groove 10321 of the second guide portion 1032 of the second support plate 103. It can be understood that, in order to facilitate the sliding of the second guide structure 102103 within the second track groove 10321, the second support plate 103 can be referenced... Figure 28 If the first support plate 102 is provided as shown, then the second track groove 10321 can be a sliding groove formed on the second guide portion 1032. Alternatively, refer to... Figure 27When the rotating shaft mechanism is in the unfolded state, the second track groove 10321 has a second opening 103211 facing the base 106, and the second guide structure 102103 can be inserted into the second track groove 10321 through the second opening 103211. Thus, during the rotation of the second swing arm 1021 and / or the second support arm 1020 around the base 106, the second guide structure 102103 can be driven to rotate around the second swing arm 1021 and / or the second support arm 1020. Furthermore, by sliding the second guide structure 102103 within the second track groove 10321, the second support plate 103 can be driven to rotate around the corresponding side of the second housing fixing frame 1019.

[0131] In this application, by rotatably connecting the second guide structure 102103 to the second swing arm 1021 and / or the second support arm 1020, and by allowing the second guide structure 102103 to slide along the second track groove 10321 of the second support plate 103, the stability of the movement of the second support plate 103 driven by the second swing arm 1021 and / or the second support arm 1020 can be effectively improved. Furthermore, when the electronic device is in the unfolded state, the flatness of the support plate 103 on the flexible display screen can be effectively improved. Additionally, when the electronic device is in the closed state, the risk of the second support plate 103 squeezing the flexible display screen during a drop can be reduced, thereby improving the overall structural reliability of the device.

[0132] In this application, by providing a first sliding groove 10151 and a second sliding groove 10152 on the first housing fixing frame 1015, and during the rotation of the first housing fixing frame 1015 around the base 106, the first support arm 1012 slides in the first sliding groove 10151 along a first direction, and the first swing arm 1013 slides in the second sliding groove 10152 along a second direction, and the projection of the first cross section intersects with the projection of the second direction on the first cross section, wherein the first cross section can be a reference plane perpendicular to the rotation axis of the first support arm 1012 and the rotation axis of the first swing arm 1013. This ensures that the rotation axes of the first support arm 1012 and the first swing arm 1013 do not coincide when rotating around the base 106, thus achieving a phase difference in the axial centers between the first support arm 1012 and the first swing arm 1013. Furthermore, by rationally designing the opening directions of the first slide rail 10151 and the second slide rail 10152, the rotation angles of the first support arm 1012 and the first swing arm 1013 relative to the base 106 can both be less than or equal to 90°. Based on the same principle, the rotation angles of the second support arm 1020 and the second swing arm 1021 relative to the base 106 can both be less than or equal to 90°.

[0133] It is understood that in the pivot mechanism 1 provided in this application, the rotation angle of the first swing arm 1013 and the second swing arm 1021 can also be adjusted by adjusting the first track groove 102021 of the first support plate 102 and the second track groove 10321 of the second support plate 103. For example, the maximum rotation angle of the first swing arm 1013 can be less than or equal to 90°. When the electronic device is in a closed state, the distance between the first swing arm 1013 and the flexible display screen 4 can be greater, thereby avoiding the first swing arm 1013 from squeezing or pulling the flexible display screen 4, reducing the risk of damage to the flexible display screen 4 and extending its service life.

[0134] In addition to the structures described above, other possible structures may be provided in the rotating shaft mechanism 1 in some embodiments of this application. For example, see [reference needed]. Figure 29 , Figure 29 This is a schematic diagram of a rotating shaft mechanism provided in another embodiment of this application. In this embodiment, the spindle module 101 may further include a synchronization component 1017. The synchronization component 1017 may include a first drive gear 10171a disposed at the end of the first support arm 1012 and a second drive gear 10171b disposed at the end of the second support arm 1020, wherein the first drive gear 10171a and the second drive gear 10171b mesh with each other. In this way, during the rotation of one support arm around the base 106, the other support arm can be driven to rotate synchronously around the base 106 in opposite or opposite directions, and the two support arms rotate through the same angle.

[0135] Reference Figure 30 , Figure 30 for Figure 29 The diagram shows a cross-sectional view at point DD of the rotating shaft mechanism. In this application, the synchronization component 1017 may further include a driven gear 10172, which may be disposed between two driving gears. Furthermore, there may be an even number of driven gears 10172, and adjacent driven gears 10172 mesh with each other and with the driving gears, thereby enabling the two driving gears to rotate synchronously through the even number of driven gears 10172.

[0136] To improve the stability of the movement of the synchronization component 1017, in this application, the two driving gears can be respectively fitted onto the corresponding pins. In addition, the synchronization component 1017 may also include an intermediate shaft 10173, which can be located between the two pins, and each driven gear 10172 is fitted onto one intermediate shaft 10173.

[0137] It is worth mentioning that in this application, the synchronization component 1017 can be disposed on the base 106 and accommodated within the space formed between the cover plate 1014 and the base 106, so that the structure of the rotating shaft mechanism 1 is more compact. In the rotating shaft mechanism 1 provided in this application, by providing the synchronization component 1017, one support arm can be driven to rotate synchronously around the base 106 in opposite or opposite directions while one support arm rotates around the base 106. Furthermore, since each support arm can slide along the groove of the corresponding side of the housing fixing frame, the housing fixing frame on the same side can be driven to rotate at the same angle while the support arm rotates around the base 106, thus achieving synchronous rotation of the two housing fixing frames during the synchronous rotation of the two support arms. Since the housing fixing frame can be fixedly connected to the housing of the electronic device, the synchronous rotation of the two housing fixing frames can cause the two housings of the electronic device to rotate synchronously. This avoids applying instantaneous force to the flexible display screen 4 fixed to the two housings, thereby improving the reliability of the flexible display screen 4.

[0138] You can continue to refer to Figure 29 In this application, the spindle module 101 may also be provided with a damping component 1018. The damping component 1018 may include a first elastic element 10181 and a first integrated cam 10182. Along the length direction of the spindle module 101, the first integrated cam 10182 is located between the first elastic element 10181 and the first support arm 1012, and under the action of the elastic force of the first elastic element 10181, the first integrated cam 10182 abuts against the first support arm 1012.

[0139] Furthermore, the end of the first support arm 1012 facing the first integrated cam 10182 may be provided with a first cam surface, and the end of the second support arm 1020 facing the first integrated cam 10182 may be provided with a second cam surface. When the first support arm 1012 is provided with a first drive gear 10171a and the second support arm 1020 is provided with a second drive gear 10171b, the first cam surface may be provided at the end of the first drive gear 10171a, and the second cam surface may be provided at the end of the second drive gear 10171b. The end of the first integrated cam 10182 facing the first support arm 1012 is provided with a third cam surface, and the end of the first integrated cam 10182 facing the second support arm is provided with a fourth cam surface. Under the action of the elastic force of the first elastic member 10181, the corresponding first cam surface and third cam surface cooperate, and the second cam surface and fourth cam surface cooperate.

[0140] It is worth mentioning that in this application, the cam surface includes multiple protrusions and recesses. When the inclined surfaces of the protrusions of two cam surfaces come into contact, a damping force can be generated between the two cam surfaces to prevent them from continuing to rotate relative to each other. Based on this, during the rotation of the two support arms around the base 106, the damping component 1018 can provide a certain damping force to the two support arms. This damping force can be transmitted to the first housing fixing frame 1015 through the first support arm 1012, and to the second housing fixing frame 1019 through the second support arm 1020, thereby acting on the two housings of the electronic device through the two housing fixing frames respectively. In this application, by setting the damping component 1018 in the spindle module 101, the accidental opening and closing of the electronic device can be avoided, and the two housings can be hovered at a set position. In addition, the user can have a more obvious feeling when opening or closing the electronic device, which is beneficial to improving the user experience.

[0141] When specifically configuring the first elastic element 10181, it may include multiple springs arranged side by side. In addition, some of the springs in the first elastic element 10181 may be sleeved on the pin 1061, and other springs may be sleeved on the intermediate shaft 10173, which helps to improve the stability of the movement of the first elastic element 10181.

[0142] You can continue to refer to Figure 29 The damping assembly 1018 may further include a stop block 10183, with the first elastic element 10181 located between the stop block 10183 and the first integrated cam 10182. The stop block 10183 may also be sleeved on the pin 1061 and the intermediate shaft 10173. By setting the stop block 10183, the first elastic element 10181 can be compressed, thereby accumulating elastic force in the first elastic element 10181. Additionally, the damping assembly 1018 may also include a retaining spring 10184. The stop block 10183 is located between the first elastic element 10181 and the retaining spring 10184, and the retaining spring 10184 can be engaged with the pin 1061 and the intermediate shaft 10173 to limit the movement of the first elastic element 10181 and the first integrated cam 10182, thereby preventing the first elastic element 10181 from detaching from the pin 1061 and the intermediate shaft 10173.

[0143] Understandably, the damping force provided by the damping assembly 1018 can typically be increased by adding more mating cam surfaces. (Refer to...) Figure 31 , Figure 31This is a partial structural diagram of a rotating shaft mechanism provided in another possible embodiment of this application. In this embodiment, the first rotating assembly 101a may further include a third support arm 1022, which is slidably connected to the first housing fixing frame 1015, and the direction in which the third support arm 1022 slides along the first housing fixing frame 1015 is the same as the direction in which the first support arm 1012 slides along the first housing fixing frame 1015. Additionally, the second rotating assembly 101b may further include a fourth support arm 1023, which is slidably connected to the second housing fixing frame 1019, and the direction in which the fourth support arm 1023 slides along the second housing fixing frame 1019 is the same as the direction in which the second support arm 1020 slides along the second housing fixing frame 1019.

[0144] The damping assembly 1018 may further include a second integrated cam 10185, with a first elastic member 10181 located between the first integrated cam 10182 and the second integrated cam 10185, and the first elastic member 10181 pressing the second integrated cam 10185 against the third support arm 1022 and the fourth support arm 1023. The end of the third support arm 1022 facing the second integrated cam 10185 may be provided with a fifth cam surface, and the end of the fourth support arm 1023 facing the second integrated cam 10185 may be provided with a sixth cam surface. Furthermore, if the second integrated cam 10185 is provided with a seventh cam surface and an eighth cam surface, then under the elastic force of the first elastic member 10181, the fifth and seventh cam surfaces engage, and the sixth and eighth cam surfaces engage.

[0145] When it is necessary to further increase the damping force provided by the damping component 1018, please refer to [the relevant documentation]. Figure 31 The damping assembly 1018 may further include a third integrated cam 10186, a third support arm 1022 located between the second integrated cam 10185 and the third integrated cam 10186, and a fourth support arm 1023 located between the second integrated cam 10185 and the third integrated cam 10186. Additionally, the damping assembly 1018 may also include a second elastic member 10187, which can press the third integrated cam 10186 against the third support arm 1022 and the fourth support arm 1023. The end of the third support arm 1022 facing the third integrated cam 10186 may be provided with a ninth cam surface, and the end of the fourth support arm 1023 facing the third integrated cam 10186 may be provided with a tenth cam surface. In addition, the third integrated cam 10186 is provided with an eleventh cam surface and a twelfth cam surface. Under the elastic force of the second elastic element 10187, the ninth cam surface and the eleventh cam surface cooperate, and the tenth cam surface and the twelfth cam surface cooperate.

[0146] In the rotating shaft mechanism, multiple cooperating cam surfaces are used to enhance the damping force provided by the damping component 1018 to the electronic device, which can prevent accidental opening and closing of the electronic device and enable the two housings to hover in a set position. In addition, the user can clearly feel the action when opening or closing the electronic device, which helps to improve the user experience.

[0147] The rotating shaft mechanism 1 provided in the above embodiments of this application can be used, but is not limited to, for example... Figure 4 The electronic device shown. (See also:) Figure 29 or Figure 31 The two housing mounting brackets of the spindle module 101 can be fixedly connected to the housing located on the same side of the base 106, respectively. For example, the first housing mounting bracket 1015 can be used with... Figure 4 The first housing 2 of the electronic device shown is fixedly connected, and the second housing mounting bracket 1019 can be used to connect with... Figure 4 The second housing 3 of the electronic device shown is fixedly connected.

[0148] In the electronic device provided in this application, when the electronic device is in the unfolded state, the first support plate 102, the second support plate 103, and the cover plate 1014 of the pivot mechanism 1 can provide flat support for the flexible display screen 4, thereby ensuring the integrity of the electronic device's shape in the unfolded state and improving the light and shadow of the flexible display screen 4. During the process of the electronic device rotating around the pivot mechanism 1 from the unfolded state to the closed state, the first housing 2 and the second housing 3 of the electronic device can respectively drive the corresponding housing fixing frame to rotate around the base 106, thereby allowing the housing fixing frame to drive the support arm and swing arm arranged on the same side to rotate around the base 106.

[0149] In this way, by rationally designing the two sliding grooves of each housing fixing bracket, the angle of rotation of the corresponding support arm and swing arm relative to the base 106 can be adjusted. For example, see also... Figure 7 and Figure 24 This allows the first arc-shaped rotating block 10131 of the first swing arm 1013 to be farther away from the flexible display screen 4 when the electronic device is in a closed state. Similarly, the second arc-shaped rotating block 102101 of the second swing arm 1021 is farther away from the flexible display screen 4. This avoids the arc-shaped rotating blocks of the two swing arms from squeezing or pulling the flexible display screen 4, thereby reducing the risk of damage to the flexible display screen 4 and extending its service life.

[0150] It is worth mentioning that you can continue to refer to this. Figure 24In this application, when the rotating mechanism is provided with a first support plate 102 and a second support plate 103, the flexible display screen 4 of the electronic device can be fixedly connected to the first support plate 102 and the second support plate 103. The connection method can be, but is not limited to, adhesive bonding. In specific implementation, the flexible display screen 4 can be bonded to a portion of the first support plate 102, for example, to the portion of the first support plate 102 near the base 106, and the flexible display screen 4 can be bonded to a portion of the second support plate 103, for example, to the portion of the second support plate 103 near the substrate 101. Thus, when the electronic device is in the unfolded state, the first housing 2, the second housing 3, the first support plate 102, and the second support plate 103 can jointly provide stable support for the flexible display screen 4, which can help improve the light and shadow of the flexible screen. During the process of the electronic device changing from the unfolded state to the closed state, the two support plates can drive the flexible display screen to rotate, which can effectively prevent the flexible display screen 4 from deforming, thereby reducing the risk of damage to the flexible display screen. Furthermore, when the electronic device is in the unfolded state... Figure 24 In the closed state shown, the flexible display screen 4 can be attached to the two support plates, which can effectively improve the bending reliability of the flexible display screen 4.

[0151] Furthermore, in this application, by rationally designing the track grooves of the two support plates, a sufficient space is formed between the two support plates and the cover plate 1014 to accommodate the bent portion of the flexible display screen 4 when the electronic device is in the closed state. This avoids gaps in the electronic device at the hinge mechanism 1, thus ensuring the relatively intact shape of the electronic device in the closed state. In this way, damage to the flexible display screen 4 caused by foreign objects being inserted into the electronic device through the hinge mechanism 1 can be avoided, and it is also beneficial to achieve a thinner design for the overall thickness of the electronic device.

[0152] In addition, by Figure 4 As shown, a first slot 201 may be provided at the end of the first housing 2 facing the rotating shaft mechanism 1, and a second slot 301 may be provided at the end of the second housing 3 facing the rotating shaft mechanism 1. One first housing mounting bracket 1015 can be accommodated in the first slot 201, and the other first housing mounting bracket 1015 can be accommodated in the second slot 301. In this way, when the electronic device is in the unfolded state, the rotating shaft mechanism 1 can be accommodated within the receiving portion formed by the engagement of the first slot 201 and the second slot 301, giving the electronic device an integrated design appearance and improving its aesthetic appeal.

[0153] Additionally, you can refer to Figure 5a and Figure 24In this application, the hinge mechanism may further include an end cap 105, which may be disposed on the side of the base 106 opposite to the flexible display screen 4. In one possible embodiment of this application, the end cap 105 may be integrally formed with the base 106 to improve the structural reliability of the hinge mechanism and simplify its structure. In other possible embodiments of this application, the end cap 105 may be independently disposed from the base 106, and the end cap 105 may be fixedly connected to the base 106, the connection method being, but not limited to, adhesive bonding or threaded connection. In this way, the end cap 105 can serve as an external component of the hinge mechanism, protecting other structures of the hinge mechanism and improving its aesthetic appearance, thereby enhancing the overall aesthetic appearance of the electronic device.

[0154] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hinge mechanism for a foldable electronic device including a flexible display screen, characterized in that, Includes a base, a first rotating assembly, and a second rotating assembly, wherein: The first rotating assembly and the second rotating assembly are located on both sides of the base. The first rotating assembly includes a first support arm, a first swing arm, and a first housing fixing frame. The second rotating assembly includes a second support arm, a second swing arm, and a second housing fixing frame. The first support arm and the second support arm are rotatably connected to the base, and the first swing arm and the second swing arm are rotatably connected to the base; the rotation axis of the first support arm is parallel to and does not coincide with the rotation axis of the first swing arm, and the rotation axis of the second support arm is parallel to and does not coincide with the rotation axis of the second swing arm. The first support arm is slidably connected to the first housing fixing frame via the first sliding groove, and the first swing arm is slidably connected to the first housing fixing frame via the second sliding groove. The first sliding groove and the second sliding groove are straight sliding grooves. The projection of the extension direction of the first groove in the first cross section intersects the projection of the extension direction of the second groove in the first cross section; wherein, the first cross section is a reference plane perpendicular to the rotation axis of the first support arm and the rotation axis of the first swing arm; The second support arm is slidably connected to the second housing frame via a third slide groove, and the second swing arm is slidably connected to the second housing frame via a fourth slide groove. The third and fourth slide grooves are straight slide grooves. The projection of the extension direction of the third slide groove in the second cross section intersects the projection of the extension direction of the fourth slide groove in the second cross section; wherein, the second cross section is a reference plane perpendicular to the rotation axis of the second support arm and the rotation axis of the second swing arm; When the rotating shaft mechanism is in the unfolded state, the rotating shaft mechanism constitutes part of the support surface for supporting the flexible display screen; The first housing fixing frame includes a first surface and a second surface arranged opposite to each other. The first surface is the surface of the first housing fixing frame facing the support surface. The second slide groove has an opening located on the first surface. When the rotating shaft mechanism is in the unfolded state, the second slide groove extends from the opening of the first surface toward the second surface and from the opening of the first surface toward the base. The second housing fixing frame includes a third surface and a fourth surface arranged opposite to each other. The third surface is the surface of the second housing fixing frame facing the support surface. The fourth slide groove has an opening located on the third surface. When the rotating shaft mechanism is in the unfolded state, the fourth slide groove extends from the opening on the third surface toward the fourth surface and extends from the opening on the third surface toward the base.

2. The rotating shaft mechanism as described in claim 1, characterized in that, The rotating shaft mechanism further includes a first driving link and a second driving link. The first driving link is located between the first support arm and the first swing arm. The first driving link is rotatably connected to the first support arm and rotatably connected to the first swing arm. The axis of rotational connection between the first driving link and the first support arm is parallel to and does not coincide with the axis of rotational connection between the first driving link and the first swing arm. The second drive link is located between the second support arm and the second swing arm. The second drive link is rotatably connected to the second support arm and the second swing arm. The axis of the rotatable connection between the second drive link and the second support arm is parallel to and does not coincide with the axis of the rotatable connection between the second drive link and the second swing arm.

3. The rotating shaft mechanism as described in claim 1, characterized in that, The rotating shaft mechanism further includes a first driving link and a second driving link. The first driving link is located between the first support arm and the first swing arm. The first driving link is slidably connected to the first swing arm and fixedly connected to the first support arm. The second drive link is located between the second support arm and the second swing arm. The second drive link is slidably connected to the second swing arm and fixedly connected to the second support arm.

4. The rotating shaft mechanism as described in claim 3, characterized in that, The first drive link is slidably connected to the first swing arm via a first link. The end of the first swing arm facing the first support arm is provided with a first guide groove. The first link is inserted into the first guide groove and is slidably connected to the first guide groove. The second drive link is slidably connected to the second swing arm via a third link. The end of the second swing arm facing the second support arm is provided with a second guide groove. The third link is inserted into the second guide groove and is slidably connected to the second guide groove.

5. The rotating shaft mechanism as described in claim 2 or 3, characterized in that, The first support arm, the first drive link, and the first swing arm are arranged sequentially along the length extension direction of the base, and the second support arm, the second drive link, and the second swing arm are arranged sequentially along the length extension direction of the base.

6. The rotating shaft mechanism as described in claim 1, characterized in that, The first swing arm is slidably connected to the first housing fixing frame via the second slide groove, including: the first swing arm and the first housing fixing frame are slidably connected via the second slide groove and the second slider; the first housing fixing frame includes the second slide groove, and the first swing arm includes the second slider; or, the first housing fixing frame includes the second slider, and the first swing arm includes the second slide groove; The second swing arm is slidably connected to the second housing fixing frame via the fourth sliding groove, including: the second swing arm and the second housing fixing frame are slidably connected to the fourth slider via the fourth sliding groove; the second housing fixing frame includes the fourth sliding groove, and the second swing arm includes the fourth slider; or, the second housing fixing frame includes the fourth slider, and the second swing arm includes the fourth sliding groove.

7. The rotating shaft mechanism as described in claim 6, characterized in that, During the process of the rotating shaft mechanism changing from the unfolded state to the folded state, the second slider slides in the second slide groove from the first surface toward the second surface, and the fourth slider slides in the fourth slide groove from the third surface toward the fourth surface.

8. The rotating shaft mechanism as described in claim 7, characterized in that, When the rotating shaft mechanism is in the unfolded state, the distance between the second slider and the first surface is less than the distance between the second slider and the first surface when the rotating shaft mechanism is in the folded state. When the rotating shaft mechanism is in the unfolded state, the distance between the fourth slider and the third surface is less than the distance between the fourth slider and the third surface when the rotating shaft mechanism is in the folded state.

9. The rotating shaft mechanism as described in claim 6, characterized in that, The first housing fixing frame includes the second slide groove, and the first swing arm includes the second slider, which is a rectangular slider or a pin. The second housing fixing frame includes the fourth sliding groove, and the second swing arm includes the fourth slider, which is a rectangular slider or a pin.

10. The rotating shaft mechanism according to any one of claims 1-9, characterized in that, The first slide has a first end and a second end. The distance between the first end of the first slide and the base is less than the distance between the second end of the first slide and the base. During the process of the rotating shaft mechanism changing from the unfolded state to the folded state, the first support arm slides in the first slide along the second end of the first slide toward the first end of the first slide. The third slide has a first end and a second end. The distance between the first end of the third slide and the base is less than the distance between the second end of the third slide and the base. During the process of the rotating shaft mechanism changing from the unfolded state to the folded state, the second support arm slides in the third slide along the direction from the second end of the third slide toward the first end of the third slide.

11. The rotating shaft mechanism as described in claim 10, characterized in that, When the rotating shaft mechanism is in the unfolded state, the distance between the first support arm and the second end of the first slide groove is less than the distance between the first support arm and the second end of the first slide groove when the rotating shaft mechanism is in the folded state. When the rotating shaft mechanism is in the unfolded state, the distance between the second support arm and the second end of the third slide groove is less than the distance between the second support arm and the second end of the third slide groove when the rotating shaft mechanism is in the folded state.

12. The rotating shaft mechanism as described in claim 10, characterized in that, When the rotating shaft mechanism is in the unfolded state, along the direction from the first housing fixing frame to the second housing fixing frame, the first housing fixing frame has a fifth surface and a sixth surface, the first end of the first sliding groove is an opening located on the fifth surface, and the second end of the first sliding groove is an opening located on the sixth surface; When the rotating shaft mechanism is in the unfolded state, it is positioned along the direction from the first housing fixing frame to the second housing fixing frame. The second housing fixing frame has a seventh surface and an eighth surface. The first end of the third sliding groove is an opening located on the seventh surface, and the second end of the third sliding groove is an opening located on the eighth surface.

13. The rotating shaft mechanism as described in claim 1, characterized in that, When the rotating shaft mechanism is in the unfolded state, the acute angle formed by the first slide groove and the supporting surface is smaller than the acute angle formed by the second slide groove and the supporting surface, and the acute angle formed by the third slide groove and the supporting surface is smaller than the acute angle formed by the fourth slide groove and the supporting surface.

14. The rotating shaft mechanism as described in claim 1, characterized in that, During the process of the rotating shaft mechanism changing from the unfolded state to the folded state, the first support arm and the first swing arm rotate at an angle of no more than 90° relative to the base, and the second support arm and the second swing arm rotate at an angle of no more than 90° relative to the base.

15. The rotating shaft mechanism as described in claim 1, characterized in that, The base is provided with a first arc-shaped groove and a second arc-shaped groove. The first swing arm is provided with a first arc-shaped rotating block at one end for rotatable connection with the base. The first arc-shaped rotating block is accommodated in the first arc-shaped groove and can rotate along the arc surface of the first arc-shaped groove. The second swing arm is provided with a second arc-shaped rotating block at one end for rotatable connection with the base. The second arc-shaped rotating block is accommodated in the second arc-shaped groove and can rotate along the arc surface of the second arc-shaped groove.

16. The rotating shaft mechanism as described in claim 15, characterized in that, The rotating shaft mechanism also includes a cover plate, which is placed on the base. The surface of the cover plate facing the first arc-shaped groove is provided with a first arc-shaped protrusion, and the first arc-shaped rotating block is inserted between the first arc-shaped protrusion and the first arc-shaped groove. The cover plate has a second arc-shaped protrusion on its surface facing the second arc-shaped groove, and the second arc-shaped rotating block is inserted between the second arc-shaped protrusion and the second arc-shaped groove.

17. The rotating shaft mechanism as described in claim 1, characterized in that, The rotating shaft mechanism further includes a first support plate and a second support plate, which are respectively disposed on both sides of the base; the first support plate is rotatably connected to the first housing fixing frame, and the first support plate is slidably connected to the first support arm and / or the first swing arm; the second support plate is rotatably connected to the second housing fixing frame, and the second support plate is slidably connected to the second support arm and / or the second swing arm.

18. The rotating shaft mechanism as described in claim 17, characterized in that, The first housing fixing frame is provided with a first rotating groove, and the first support plate is provided with a first rotating part. The first rotating part is installed in the first rotating groove, and the first rotating part can rotate along the first rotating groove. The second housing fixing frame is provided with a second rotating groove, and the second support plate is provided with a second rotating part. The second rotating part is installed in the second rotating groove and can rotate along the second rotating groove.

19. The rotating shaft mechanism as described in claim 17 or 18, characterized in that, The first support plate is provided with a first guide portion, and the first guide portion has a first track groove; the first swing arm is provided with a first guide structure, the first guide structure is inserted into the first track groove and can slide along the first track groove; and / or the first support arm is provided with a first guide structure, the first guide structure is inserted into the first track groove and can slide along the first track groove. The second support plate is provided with a second guide portion, the second guide portion having a second track groove; the second swing arm is provided with a second guide structure, the second guide structure being inserted into the second track groove and being slidable along the second track groove; and / or the second support arm is provided with a second guide structure, the second guide structure being inserted into the second track groove and being slidable along the second track groove.

20. The rotating shaft mechanism as described in claim 19, characterized in that, The first swing arm is provided with a first guide structure, one end of the first guide structure is provided with a first protrusion, the first swing arm has a first insertion hole, the wall of the first insertion hole is provided with a first groove, the first guide structure is inserted into the first insertion hole, and the first protrusion is engaged with the first groove; or the first support arm is provided with a first guide structure, one end of the first guide structure is provided with a first protrusion, the first support arm has a first insertion hole, the wall of the first insertion hole is provided with a first groove, the first guide structure is inserted into the first insertion hole, and the first protrusion is engaged with the first groove; The second swing arm is provided with a second guide structure, one end of which is provided with a second protrusion. The second swing arm has a second insertion hole, the wall of which is provided with a second groove. The second guide structure is inserted into the second insertion hole, and the second protrusion engages with the second groove. Alternatively, the second support arm is provided with a second guide structure, one end of which is provided with a second protrusion. The second support arm has a second insertion hole, the wall of which is provided with a second groove. The second guide structure is inserted into the second insertion hole, and the second protrusion engages with the second groove.

21. The rotating shaft mechanism as described in claim 19, characterized in that, The first swing arm is provided with a first guide structure, the first guide structure is rotatably connected to the first swing arm, and / or the first support arm is provided with a first guide structure, the first guide structure is rotatably connected to the first support arm; The second swing arm is provided with a second guide structure, which is rotatably connected to the second swing arm, and / or the second support arm is provided with a second guide structure, which is rotatably connected to the second support arm.

22. The rotating shaft mechanism as described in claim 21, characterized in that, When the rotating shaft mechanism is in the unfolded state, the first track groove has a first opening facing the base, and the first guide structure is inserted into the first track groove through the first opening. When the rotating shaft mechanism is in the unfolded state, the second track groove has a second opening facing the base, and the second guide structure is inserted into the second track groove through the second opening.

23. An electronic device, characterized in that, It includes a first housing, a second housing, a flexible display screen, and a rotating shaft mechanism, wherein: The first housing and the second housing are respectively disposed on both sides of the rotating shaft mechanism. The first housing fixing frame is fixedly connected to the first housing, and the second housing fixing frame is fixedly connected to the second housing. The flexible display screen continuously covers the first housing, the rotating shaft mechanism, and the second housing. The rotating shaft mechanism is correspondingly arranged with the bendable portion of the flexible display screen, and the flexible display screen is fixedly connected to the first housing and the second housing. When the electronic device is in the unfolded state, the first housing, the pivot mechanism, and the second housing together support the flexible display screen. The rotating shaft mechanism includes a base, a first rotating component, and a second rotating component; The first rotating assembly and the second rotating assembly are located on both sides of the base. The first rotating assembly includes a first support arm, a first swing arm, and a first housing fixing frame. The second rotating assembly includes a second support arm, a second swing arm, and a second housing fixing frame. The first support arm and the second support arm are rotatably connected to the base, and the first swing arm and the second swing arm are rotatably connected to the base; the rotation axis of the first support arm is parallel to and does not coincide with the rotation axis of the first swing arm, and the rotation axis of the second support arm is parallel to and does not coincide with the rotation axis of the second swing arm. The first support arm is slidably connected to the first housing fixing frame via the first sliding groove, and the first swing arm is slidably connected to the first housing fixing frame via the second sliding groove. The first sliding groove and the second sliding groove are straight sliding grooves. The projection of the extension direction of the first groove in the first cross section intersects the projection of the extension direction of the second groove in the first cross section; wherein, the first cross section is a reference plane perpendicular to the rotation axis of the first support arm and the rotation axis of the first swing arm; The second support arm is slidably connected to the second housing frame via a third slide groove, and the second swing arm is slidably connected to the second housing frame via a fourth slide groove. The third and fourth slide grooves are straight slide grooves. The projection of the extension direction of the third slide groove in the second cross section intersects the projection of the extension direction of the fourth slide groove in the second cross section; wherein, the second cross section is a reference plane perpendicular to the rotation axis of the second support arm and the rotation axis of the second swing arm; The first housing mounting bracket includes a first surface and a second surface arranged opposite to each other. The first surface is the surface of the first housing mounting bracket facing the flexible display screen. The second slide has an opening located on the first surface. When the electronic device is in the unfolded state, the second slide extends from the opening on the first surface toward the second surface and from the opening on the first surface toward the base. The second housing mounting bracket includes a third surface and a fourth surface arranged opposite to each other. The third surface is the surface of the second housing mounting bracket facing the flexible display screen. The fourth slide has an opening located on the third surface. When the electronic device is in the unfolded state, the fourth slide extends from the opening on the third surface toward the fourth surface and from the opening on the third surface toward the base.

24. The electronic device as claimed in claim 23, characterized in that, The rotating shaft mechanism further includes a first driving link and a second driving link. The first driving link is located between the first support arm and the first swing arm. The first driving link is rotatably connected to the first support arm and rotatably connected to the first swing arm. The axis of rotational connection between the first driving link and the first support arm is parallel to and does not coincide with the axis of rotational connection between the first driving link and the first swing arm. The second drive link is located between the second support arm and the second swing arm. The second drive link is rotatably connected to the second support arm and the second swing arm. The axis of the rotatable connection between the second drive link and the second support arm is parallel to and does not coincide with the axis of the rotatable connection between the second drive link and the second swing arm.

25. The electronic device as claimed in claim 23, characterized in that, The rotating shaft mechanism further includes a first driving link and a second driving link. The first driving link is located between the first support arm and the first swing arm. The first driving link is slidably connected to the first swing arm and fixedly connected to the first support arm. The second drive link is located between the second support arm and the second swing arm. The second drive link is slidably connected to the second swing arm and fixedly connected to the second support arm.

26. The electronic device as claimed in claim 25, characterized in that, The first drive link is slidably connected to the first swing arm via a first link. The end of the first swing arm facing the first support arm is provided with a first guide groove. The first link is inserted into the first guide groove and is slidably connected to the first guide groove. The second drive link is slidably connected to the second swing arm via a third link. The end of the second swing arm facing the second support arm is provided with a second guide groove. The third link is inserted into the second guide groove and is slidably connected to the second guide groove.

27. The electronic device as claimed in claim 24 or 25, characterized in that, The first support arm, the first drive link, and the first swing arm are arranged sequentially along the length extension direction of the base, and the second support arm, the second drive link, and the second swing arm are arranged sequentially along the length extension direction of the base.

28. The electronic device as claimed in claim 23, characterized in that, The first swing arm is slidably connected to the first housing fixing frame via the second slide groove, including: the first swing arm and the first housing fixing frame are slidably connected via the second slide groove and the second slider; the first housing fixing frame includes the second slide groove, and the first swing arm includes the second slider; or, the first housing fixing frame includes the second slider, and the first swing arm includes the second slide groove; The second swing arm is slidably connected to the second housing fixing frame via the fourth sliding groove, including: the second swing arm and the second housing fixing frame are slidably connected to the fourth slider via the fourth sliding groove; the second housing fixing frame includes the fourth sliding groove, and the second swing arm includes the fourth slider; or, the second housing fixing frame includes the fourth slider, and the second swing arm includes the fourth sliding groove.

29. The electronic device as claimed in claim 28, characterized in that, During the process of the electronic device changing from an unfolded state to a folded state, the second slider slides in the second groove from the first surface toward the second surface, and the fourth slider slides in the fourth groove from the third surface toward the fourth surface.

30. The electronic device as claimed in claim 29, characterized in that, When the electronic device is in the unfolded state, the distance between the second slider and the first surface is less than the distance between the second slider and the first surface when the electronic device is in the folded state; The distance between the fourth slider and the third surface when the electronic device is in the unfolded state is less than the distance between the fourth slider and the third surface when the electronic device is in the folded state.

31. The electronic device as claimed in claim 28, characterized in that, The first housing fixing frame includes the second slide groove, and the first swing arm includes the second slider, which is a rectangular slider or a pin. The second housing fixing frame includes the fourth sliding groove, and the second swing arm includes the fourth slider, which is a rectangular slider or a pin.

32. The electronic device according to any one of claims 23-31, characterized in that, The first slide has a first end and a second end. The distance between the first end of the first slide and the base is less than the distance between the second end of the first slide and the base. During the process of the electronic device changing from an unfolded state to a folded state, the first support arm slides in the first slide along the second end of the first slide toward the first end of the first slide. The third slide has a first end and a second end. The distance between the first end of the third slide and the base is less than the distance between the second end of the third slide and the base. During the process of the electronic device changing from an unfolded state to a folded state, the second support arm slides in the third slide along the direction from the second end of the third slide toward the first end of the third slide.

33. The electronic device as claimed in claim 32, characterized in that, When the electronic device is in the unfolded state, the distance between the first support arm and the second end of the first slide is less than the distance between the first support arm and the second end of the first slide when the electronic device is in the folded state. When the electronic device is in the unfolded state, the distance between the second support arm and the second end of the third slide is less than the distance between the second support arm and the second end of the third slide when the electronic device is in the folded state.

34. The electronic device as claimed in claim 33, characterized in that, When the electronic device is in the unfolded state, along the direction from the first housing fixing frame to the second housing fixing frame, the first housing fixing frame has a fifth surface and a sixth surface, the first end of the first slide groove is an opening located on the fifth surface, and the second end of the first slide groove is an opening located on the sixth surface; When the electronic device is in the unfolded state, along the direction from the first housing fixing frame to the second housing fixing frame, the second housing fixing frame has a seventh surface and an eighth surface, the first end of the third slide groove is an opening located on the seventh surface, and the second end of the third slide groove is an opening located on the eighth surface.

35. The electronic device as claimed in claim 23, characterized in that, When the electronic device is in the unfolded state, the acute angle formed by the first slide and the flexible display screen is smaller than the acute angle formed by the second slide and the flexible display screen, and the acute angle formed by the third slide and the flexible display screen is smaller than the acute angle formed by the fourth slide and the flexible display screen.

36. The electronic device as claimed in claim 23, characterized in that, During the process of the electronic device changing from an unfolded state to a folded state, the angle of rotation of the first support arm and the first swing arm relative to the base is not greater than 90°, and the angle of rotation of the second support arm and the second swing arm relative to the base is not greater than 90°.

37. The electronic device as claimed in claim 23, characterized in that, The base is provided with a first arc-shaped groove and a second arc-shaped groove. The first swing arm is provided with a first arc-shaped rotating block at one end for rotatable connection with the base. The first arc-shaped rotating block is accommodated in the first arc-shaped groove and can rotate along the arc surface of the first arc-shaped groove. The second swing arm is provided with a second arc-shaped rotating block at one end for rotatable connection with the base. The second arc-shaped rotating block is accommodated in the second arc-shaped groove and can rotate along the arc surface of the second arc-shaped groove.

38. The electronic device as claimed in claim 37, characterized in that, The rotating shaft mechanism also includes a cover plate, which is placed on the base. The surface of the cover plate facing the first arc-shaped groove is provided with a first arc-shaped protrusion, and the first arc-shaped rotating block is inserted between the first arc-shaped protrusion and the first arc-shaped groove. The cover plate has a second arc-shaped protrusion on its surface facing the second arc-shaped groove, and the second arc-shaped rotating block is inserted between the second arc-shaped protrusion and the second arc-shaped groove.

39. The electronic device as claimed in claim 23, characterized in that, The rotating shaft mechanism further includes a first support plate and a second support plate, which are respectively disposed on both sides of the base; the first support plate is rotatably connected to the first housing fixing frame, and the first support plate is slidably connected to the first support arm and / or the first swing arm; the second support plate is rotatably connected to the second housing fixing frame, and the second support plate is slidably connected to the second support arm and / or the second swing arm.

40. The electronic device as claimed in claim 39, characterized in that, The first housing fixing frame is provided with a first rotating groove, and the first support plate is provided with a first rotating part. The first rotating part is installed in the first rotating groove, and the first rotating part can rotate along the first rotating groove. The second housing fixing frame is provided with a second rotating groove, and the second support plate is provided with a second rotating part. The second rotating part is installed in the second rotating groove and can rotate along the second rotating groove.

41. The electronic device as claimed in claim 39 or 40, characterized in that, The first support plate is provided with a first guide portion, and the first guide portion has a first track groove; the first swing arm is provided with a first guide structure, the first guide structure is inserted into the first track groove and can slide along the first track groove; and / or the first support arm is provided with a first guide structure, the first guide structure is inserted into the first track groove and can slide along the first track groove. The second support plate is provided with a second guide portion, the second guide portion having a second track groove; the second swing arm is provided with a second guide structure, the second guide structure being inserted into the second track groove and being slidable along the second track groove; and / or the second support arm is provided with a second guide structure, the second guide structure being inserted into the second track groove and being slidable along the second track groove.

42. The electronic device as claimed in claim 41, characterized in that, The first swing arm is provided with a first guide structure, one end of the first guide structure is provided with a first protrusion, the first swing arm has a first insertion hole, the wall of the first insertion hole is provided with a first groove, the first guide structure is inserted into the first insertion hole, and the first protrusion is engaged with the first groove; or the first support arm is provided with a first guide structure, one end of the first guide structure is provided with a first protrusion, the first support arm has a first insertion hole, the wall of the first insertion hole is provided with a first groove, the first guide structure is inserted into the first insertion hole, and the first protrusion is engaged with the first groove; The second swing arm is provided with a second guide structure, one end of which is provided with a second protrusion. The second swing arm has a second insertion hole, the wall of which is provided with a second groove. The second guide structure is inserted into the second insertion hole, and the second protrusion engages with the second groove. Alternatively, the second support arm is provided with a second guide structure, one end of which is provided with a second protrusion. The second support arm has a second insertion hole, the wall of which is provided with a second groove. The second guide structure is inserted into the second insertion hole, and the second protrusion engages with the second groove.

43. The electronic device as claimed in claim 41, characterized in that, The first swing arm is provided with a first guide structure, the first guide structure is rotatably connected to the first swing arm, and / or the first support arm is provided with a first guide structure, the first guide structure is rotatably connected to the first support arm; The second swing arm is provided with a second guide structure, which is rotatably connected to the second swing arm, and / or the second support arm is provided with a second guide structure, which is rotatably connected to the second support arm.

44. The electronic device as claimed in claim 43, characterized in that, When the electronic device is in the unfolded state, the first track groove has a first opening facing the base, and the first guide structure is inserted into the first track groove through the first opening. When the electronic device is in the unfolded state, the second track groove has a second opening facing the base, and the second guide structure is inserted into the second track groove through the second opening.

45. The electronic device as claimed in claim 39, characterized in that, The flexible display screen is bonded to the first support plate and the second support plate.

46. ​​The electronic device as claimed in claim 45, characterized in that, The flexible display screen is bonded to a portion of the first support plate, and the flexible display screen is bonded to a portion of the second support plate.

47. The electronic device as claimed in claim 23, characterized in that, The electronic device also includes an end cap located on the side of the base away from the flexible display screen, and the end cap and the base are integrally formed.

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