Foldable electronic device and hinge mechanism thereof

Abstract

The application provides a foldable electronic device and a hinge mechanism thereof. The electronic device comprises a first housing, a second housing, a hinge mechanism, a flexible display screen and an end cover. The hinge mechanism is used to realize the relative opening and closing of the first housing and the second housing. The flexible display screen continuously covers the first housing, the second housing and the hinge mechanism, and the flexible display screen is fixedly connected with the first housing and the second housing. The hinge mechanism comprises a base, and at least part of the base is accommodated in a first accommodating groove of the end cover. The side of the first housing away from the flexible display screen has a first appearance surface, the base has a first arc-shaped groove, and at least part of the first housing rotates in the first arc-shaped groove when the electronic device is switched between the closed state and the open state. When the electronic device is in the closed state and the open state, the first appearance surface and the groove surface of the first accommodating groove are overlapped. In this way, the structure of the first housing is relatively simple, which is beneficial to simplifying the structure of the electronic device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, and in particular to a foldable electronic device and a hinge mechanism thereof. BACKGROUND

[0002] With the gradual maturity of flexible display screen technology, the display mode of electronic devices has changed greatly. Foldable flexible display screen mobile phones, foldable flexible display screen tablets, and wearable electronic devices with foldable flexible display screens are important evolution directions of future smart electronic devices.

[0003] A flexible display screen is a key component of a foldable electronic device, and has the characteristic of continuous foldability. A hinge mechanism is an important component of a foldable electronic device for realizing folding functions. When the foldable electronic device is in a closed state, the hinge mechanism can form a screen containing space for accommodating a folded part of the flexible display screen, so as to avoid the flexible display screen being pulled or squeezed. In the current foldable electronic device, in order to enable the hinge mechanism to form a screen containing space that meets the requirements, the hinge mechanism usually adopts a symmetrical design, so that the electronic device is designed symmetrically, but this makes the structure of the foldable electronic device more complex. SUMMARY

[0004] The present application provides a foldable electronic device and a hinge mechanism thereof, so as to simplify the structure of the hinge mechanism, and thus simplify the structure of the electronic device.

[0005] In a first aspect, the present application provides an electronic device, which is a foldable electronic device, and can include a first housing, a second housing, a hinge mechanism, a flexible display screen and an end cover. The first housing and the second housing are arranged on opposite sides of the hinge mechanism, and the first housing and the second housing can be relatively unfolded and closed by the hinge mechanism. The flexible display screen can continuously cover the first housing, the second housing and the hinge mechanism, and the flexible display screen can be fixedly connected with the first housing and the second housing. In this way, during the rotation of the first housing and the second housing relative to the hinge mechanism, the flexible display screen can be bent, and the bent part of the flexible display screen is correspondingly arranged with the hinge mechanism. In addition, the first housing includes a first appearance surface, which is the surface of the first housing facing away from the flexible display screen. The hinge mechanism can include a base, and the base can have a first arc-shaped groove. The end cover has a first accommodating groove on the side facing the flexible display screen, and at least part of the base can be accommodated in the first accommodating groove, so that the end cover can protect the base. When the electronic device is in the closed state and the unfolded state, the first appearance surface can be overlapped with the groove surface of the first accommodating groove, so that in this state, the first housing and the end cover have a complete appearance surface. In addition, when the electronic device switches between the closed state and the unfolded state, at least part of the first housing can rotate in the first arc-shaped groove, and this design can make the structure of the first housing simpler and lighter, which can simplify the structure of the electronic device.

[0006] In addition, in the present application, the second housing has a second appearance surface, which is located on the side of the second housing facing away from the flexible display screen. The distance between the first appearance surface and the flexible display screen is smaller than the distance between the second appearance surface and the flexible display screen. This design can make the first housing and the second housing have a non-equal structure, and can make the thickness of the first housing smaller, thereby facilitating the thinning design of the first housing and simplifying the structure of the first housing, which is beneficial to the simplified design of the electronic device.

[0007] In the electronic device provided in the present application, the second housing can have a second accommodating groove, and the end cover has a third appearance surface, which is the surface of the end cover facing away from the base. When the electronic device is in the closed state and the unfolded state, the third appearance surface is overlapped with the groove surface of the second accommodating groove, so that in this state, the second housing and the end cover have a complete appearance surface. Therefore, the electronic device provided in the present application has a complete appearance surface in the closed state and the unfolded state, which is beneficial to improving the appearance beauty of the electronic device.

[0008] The rotation shaft mechanism is a key component for realizing rotation of the electronic device. When specifically arranged, the rotation shaft mechanism can further include a main shaft module. The main shaft module includes a first rotation assembly and a second rotation assembly. The first rotation assembly and the second rotation assembly are arranged on opposite sides of the base. The first rotation assembly can include a first support plate. The first support plate is rotationally connected to the base. The first support plate is fixedly connected to the first shell. Thus, the first shell is rotationally connected to the base through the first support plate. The second rotation assembly can include a first support arm and a shell fixing frame. The first support arm is rotationally connected to the base. The shell fixing frame is fixedly connected to the second shell. The first support arm is slidingly connected to the shell fixing frame. Thus, the second shell is rotationally connected to the base through the first support plate.

[0009] In a possible implementation of the present application, the first support plate includes a first plate surface for supporting the flexible display screen. The flexible display screen can be bonded to the first plate surface of the first support plate. Specifically, the flexible display screen can be bonded to a partial region of the first plate surface. Thus, when the electronic device is in the unfolded state, the first shell, the second shell, and the first support plate can jointly stably support the flexible display screen. During the process of the electronic device changing from the unfolded state to the closed state, the first support plate can drive the flexible display screen to rotate. This can effectively avoid deformation of the flexible display screen, thereby reducing the risk of damage to the flexible display screen. Moreover, when the electronic device is in the closed state, the flexible display screen can be attached to the first support plate. This can be beneficial to improve the light and shadow of the flexible display screen.

[0010] In addition, in order to realize the rotational connection between the first support plate and the base, in a possible implementation of the present application, one end of the first support plate for rotationally connecting to the base is provided with a first arc-shaped rotation block. The first arc-shaped rotation block can be accommodated in the first arc-shaped slot and can rotate along the arc surface of the first arc-shaped slot. Thus, the first support plate and the base are rotationally connected through a virtual shaft. This is beneficial to reduce the space occupied by the first support plate on the base, thereby facilitating the narrow design of the rotation shaft mechanism, and being beneficial to realize the miniaturization design of the electronic device.

[0011] In the present application, the first rotating member can further include a first support plate having a notch, at least a part of the first rotating member can be accommodated in the notch, and the first support plate is rotationally connected with the first rotating member through a first rotating shaft, and the first support arm is rotationally connected with the first rotating member. In addition, the rotation center line of the first support plate rotationally connected with the base is a first axis, the rotation center line of the first support plate rotationally connected with the first rotating member is a second axis, and the first axis and the second axis are arranged at intervals; the rotation center line of the first support arm rotationally connected with the base is a third axis, the rotation center line of the first support arm rotationally connected with the first rotating member is a fourth axis, and the third axis and the fourth axis are arranged at intervals. In this way, when the first shell and the second shell are relatively closed, the first support arm rotates around the base, the first rotating member moves towards the first support plate, so that the first support plate rotates around the base, and the first support plate rotates towards the first support arm. When the first shell and the second shell are relatively unfolded, the first support arm rotates around the base, the first rotating member moves towards the first support arm, so that the first support plate rotates around the base under the pulling of the first rotating member, and the first support plate rotates away from the first support arm, thereby realizing the synchronous reverse movement of the first rotating assembly and the second rotating assembly. Thus, the synchronous reverse movement of the first shell and the second shell during the unfolding and closing of the electronic device can be realized, which can be beneficial to improve the consistency of the force of the first shell and the second shell acting on the flexible display, thereby effectively reducing the risk of damage to the flexible display.

[0012] In a possible implementation of the present application, the first rotating assembly can further include a first elastic member, and the first elastic member is sleeved on the first rotating shaft. In addition, in the axial direction of the first rotating shaft, the first support plate can further have a first cam surface, and the first rotating member can have a second cam surface. In this way, under the action of the first elastic member, the first cam surface and the second cam surface can be in abutment to generate a damping force during the relative rotation of the first support plate and the first rotating member. When the rotating shaft mechanism is applied to an electronic device, the damping force can make the user have a clear feeling during the folding of the electronic device, thereby improving the user's experience.

[0013] In order to improve the movement stability of the second rotating assembly, the second rotating assembly can further include a second support arm, the second support arm is rotationally connected with the base, and the second support arm is slidingly connected with the shell fixing frame, so that the first support arm and the second support arm jointly drive the second shell to rotate, which is beneficial to improve the stability of the movement of the second shell.

[0014] In the present application, the first rotating component can further include a second rotating member, at least a part of which can be accommodated in the gap of the first support plate. The second rotating member can be rotatably connected with the first support plate through the first rotating shaft. At this time, the first rotating member, the second rotating member and the first support plate are rotatably connected through the first rotating shaft, that is, the rotation center line of the rotation connection between the first support plate and the second rotating member coincides with the rotation center line of the rotation connection between the first support plate and the first rotating member. In addition, the second support arm is rotatably connected with the second rotating member. The rotation center line of the rotation connection between the second support arm and the base is the fifth axis, the rotation center line of the rotation connection between the second support arm and the second rotating member is the sixth axis, and the fifth axis and the sixth axis are arranged at intervals. In this way, when the first shell and the second shell are relatively closed, the second support arm rotates around the base, the second rotating member moves towards the first support plate, so that the first support plate rotates around the base under the pushing of the second rotating member, and the first support plate rotates towards the second support arm. When the first shell and the second shell are relatively unfolded, the second support arm rotates around the base, the second rotating member moves towards the second support arm, so that the first support plate rotates around the base under the pulling of the second rotating member, and the first support plate rotates away from the second support arm, thereby realizing the synchronous reverse movement of the first rotating component and the second rotating component.

[0015] In addition, in the axial direction of the first rotating shaft, the first support plate can have a third cam surface, and the second rotating member can have a fourth cam surface, the third cam surface and the fourth cam surface can abut against each other, thereby generating a damping force in the process of relative rotation of the first support plate and the second rotating member. In this way, in the process of rotation of the first support plate around the base, two pairs of damping forces act on the first rotating component, which can improve the user's experience in use.

[0016] The first elastic member mentioned above in the present application can also act on the second rotating member, so that under the elastic force of the first elastic member, the third cam surface and the fourth cam surface are tightly abutted against each other, so as to improve the damping force in the process of relative rotation of the first support plate and the second rotating member.

[0017] In order to improve the consistency of the movement of the first support arm and the second support arm, the first support arm and the second support arm can be rotatably connected with the base through the second rotating shaft.

[0018] From the above introduction, it can be known that the damping force can be generated through the cooperation of the cam surfaces. Based on this, the second rotating component can also be reasonably designed so that the damping force also acts in the process of rotation of the second rotating component. In a possible implementation manner of the present application, the base can further include a first cam member, the first cam member and the first support arm can be rotatably connected through the second rotating shaft, and the first cam member can be connected with the base through the third rotating shaft. In this way, the first cam member and the base have no rotation relationship.

[0019] In addition, the second rotating member can include a second elastic member sleeved on the second rotating shaft. The first supporting arm has a fifth cam surface arranged towards the second supporting arm in the axial direction of the second rotating shaft. The first cam member can have a sixth cam surface arranged away from the second supporting arm. The fifth cam surface and the sixth cam surface can abut under the elastic force of the second elastic member. In this way, a damping force can be generated between the first supporting arm and the second supporting arm during the rotation of the first supporting arm relative to the base.

[0020] In a possible implementation of the present application, the base can further include a second cam member rotationally connected to the second supporting arm through a second rotating shaft, and the second cam member can be rotationally connected to the first cam member through a third rotating shaft. In addition, the second supporting arm can have a seventh cam surface arranged towards the first supporting arm in the axial direction of the second rotating shaft, and the second cam member can have an eighth cam surface arranged away from the first supporting arm. The seventh cam surface and the eighth cam surface can abut under the elastic force of the second elastic member. In this way, a damping force can be generated between the second supporting arm and the base during the rotation of the second supporting arm relative to the base.

[0021] In a possible implementation of the present application, the base can further include a first damping support and a second damping support. The first cam member abuts against the first damping support, and the second cam member abuts against the second damping support, so as to limit the axial movement of the first cam member and the second cam member.

[0022] In order to realize the abutment of the first cam member and the first damping support, and the abutment of the second cam member and the second damping support, the base can further include a third elastic member sleeved on the third rotating shaft. The first cam member and the first damping support can abut under the elastic force of the third elastic member, and the second cam member and the second damping support can abut under the elastic force of the third elastic member.

[0023] In the present application, the first end of the second rotating shaft can be limitingly connected to the first damping support, and the second end of the second rotating shaft can be limitingly connected to the second damping support, so as to limit the axial movement of the second rotating shaft. Similarly, the first end of the third rotating shaft can be limitingly connected to the first damping support, and the second end of the third rotating shaft can be limitingly connected to the second damping support, so as to limit the axial movement of the third rotating shaft.

[0024] In addition, the first end of the second rotating shaft and the first end of the third rotating shaft can be clamped with a first limiting sheet, and the first limiting sheet abuts against the first damping support, so as to realize the connection between the first end of the second rotating shaft, the first end of the third rotating shaft and the first damping support. Similarly, the second end of the second rotating shaft and the second end of the third rotating shaft can be clamped with a second limiting sheet, and the second limiting sheet abuts against the second damping support, so as to realize the connection between the second end of the second rotating shaft, the second end of the third rotating shaft and the second damping support.

[0025] In a possible implementation of the present application, in the axial direction of the second rotating shaft, the second damping support can further have a ninth cam surface, which is arranged towards the second support arm; and the second support arm further has a tenth cam surface, which is arranged away from the first support arm; and under the action of the second elastic member, the ninth cam surface and the tenth cam surface can abut against each other. In this way, during the rotation of the second support arm relative to the base, a damping force can be generated between the two.

[0026] In a possible implementation of the present application, the base can include a bearing surface, which can be used to support the flexible display screen. The second rotating assembly includes a second support plate and a swing arm, the second support plate is rotationally connected with the housing fixed frame, and the second support plate includes a second plate surface, which is used to support the flexible display screen.

[0027] The swing arm can be rotationally connected with the base, and the rotation axis of the first support arm and the rotation axis of the swing arm are parallel and do not coincide. In this way, the phase difference effect of the swing arm and the first support arm can be realized, so that the second rotating assembly can perform a telescopic motion relative to the base during the rotation of the rotating shaft mechanism, so that it can adapt to the length of the flexible display screen, avoid pulling or extruding the flexible display screen, reduce the risk of damage to the flexible display screen, and prolong the service life of the flexible display screen.

[0028] In addition, the first rotating assembly will not be elongated relative to the base during the rotation around the base, so that the structure design of the first rotating assembly side of the rotating shaft mechanism can be simple and the occupied space can be small, thereby being beneficial to reducing the volume of the entire rotating shaft mechanism. This is beneficial to realizing the miniaturization and thinning design of the electronic device.

[0029] In a possible implementation of the present application, the swing arm is in sliding connection with the housing fixing frame. The housing fixing frame can be provided with a first sliding groove extending in the first direction and a third sliding groove extending in the second direction, the first support arm can slide in the first sliding groove, and the swing arm can slide in the third sliding groove. In addition, the projection of the first direction on the first section plane and the projection of the second direction on the first section plane are not parallel. The first section plane is perpendicular to the rotation axis of the first support arm and the rotation axis of the swing arm. In this way, the angle of rotation of the first support arm and the swing arm relative to the base can be adjusted by reasonably designing the opening direction of the first sliding groove and the third sliding groove. For example, the rotation angle of the first support arm and the swing arm can be less than 90°. In this way, the angle of rotation of the first support arm and the swing arm relative to the base is small, so that the rotation shaft mechanism can avoid the rotation of the swing arm, which can be beneficial to the increase of the wall thickness of the local structure of the swing arm, thereby improving the structural reliability of the swing arm. In addition, when the rotation shaft mechanism is applied to the electronic device, the components in the electronic device can be effectively avoided from being thinned to avoid the rotation of the swing arm, which can improve the reliability of the overall structure of the electronic device. Moreover, the risk of the swing arm rotation pressing the flexible display screen of the electronic device can be reduced, which can reduce the risk of damage to the flexible display screen and prolong its service life.

[0030] With the above design, when the rotation shaft mechanism is in a closed state, the included angle between the first plate surface and the bearing surface can be greater than the included angle between the second plate surface and the bearing surface, so as to form a screen containing space between the first plate surface, the second plate surface and the bearing surface for accommodating the bendable part of the flexible display screen. Here, the closed state of the rotation shaft mechanism does not necessarily mean that the two rotating components of the rotation shaft mechanism are completely matched and seamless, but means the state of the rotation shaft mechanism corresponding to the closed state of the electronic device.

[0031] In the rotation shaft mechanism provided in the present application, the first rotating component and the second rotating component are asymmetrically arranged relative to each other or relative to the base. With the rotation shaft mechanism, a triangular screen containing space inclined to the first support plate side can be formed between the first support plate, the second support plate and the base. When the rotation shaft mechanism is applied to the electronic device, the bendable part of the flexible display screen of the electronic device can be accommodated in the screen containing space and assume an eccentric water drop shape. In this way, while avoiding pressing the flexible display screen and thus reducing the risk of damage to the flexible display screen, the width of the bending area of the flexible display screen can be effectively reduced to improve the user experience. At the same time, since the structures on both sides of the rotation shaft mechanism do not need to be completely the same, the structure design on one side of the rotation shaft structure can be simplified, and the overall structure of the rotation shaft mechanism can also be simplified.

[0032] There are many ways to achieve the rotational connection between the second support plate and the shell fixing frame. In one possible implementation of the present application, a rotating groove can be arranged on the shell fixing frame, and a rotating part can be arranged on the first support plate. In this way, the rotating part can be installed in the rotating groove, and the rotating part can rotate along the groove surface of the rotating groove.

[0033] In addition, when the second rotating assembly includes a second support arm, the shell fixing frame can also be provided with a second sliding groove extending in the first direction, and the second support arm can slide in the second sliding groove. In this way, by reasonably designing the opening direction of the second sliding groove, the angle of the second support arm relative to the base can be adjusted. For example, the rotating angle of the second support arm can be less than or equal to 90°.

[0034] In another possible implementation of the present application, the swing arm can be rotatably connected with the shell fixing frame. With this scheme, a connecting rod and sliding block mechanism is formed between the first support arm and the swing arm. In the process of the electronic device changing from the closed state to the unfolded state, the first support arm can rotate through an angle of 90°, but the swing arm can rotate through an angle greater than 90°.

[0035] In a second aspect, the present application also provides a hinge mechanism, which can be used in a foldable electronic device, and the hinge mechanism is arranged corresponding to a bendable part of a flexible display screen of the electronic device, and the electronic device is unfolded or closed through the hinge mechanism. In a specific arrangement of the hinge mechanism, it can include a base and a main shaft module. The main shaft module includes a first rotating assembly and a second rotating assembly, and the first rotating assembly and the second rotating assembly are arranged on opposite sides of the base. The first rotating assembly can include a first support plate and a first rotating piece, the first support plate has a notch, at least part of the first rotating piece can be accommodated in the notch, and the first support plate and the first rotating piece are rotationally connected through a first rotating shaft. The second rotating assembly can include a first support arm, the first support arm is rotationally connected with the base, and the first support arm is rotationally connected with the first rotating piece. In addition, the rotation center line of the first support plate and the base is a first axis, the rotation center line of the first support plate and the first rotating piece is a second axis, and the first axis and the second axis are arranged in a spaced manner; the rotation center line of the first support arm and the base is a third axis, the rotation center line of the first support arm and the first rotating piece is a fourth axis, and the third axis and the fourth axis are arranged in a spaced manner. In this way, when the first rotating assembly and the second rotating assembly are relatively closed, the first support arm rotates around the base, the first rotating piece moves towards the first support plate, so that the first support plate rotates around the base under the pushing of the first rotating piece, and the first support plate rotates towards the first support arm. In addition, when the first rotating assembly and the second rotating assembly are relatively unfolded, the first support arm rotates around the base, the first rotating piece moves towards the first support arm, so that the first support plate rotates around the base under the pulling of the first rotating piece, and the first support plate rotates away from the first support arm, thereby realizing the synchronous reverse movement of the first rotating assembly and the second rotating assembly.

[0036] In order to realize the rotational connection of the first support plate and the base, in a possible implementation of the present application, the base can be provided with a first arc-shaped groove, and an end of the first support plate for rotational connection with the base is provided with a first arc-shaped rotating block, which can be accommodated in the first arc-shaped groove and can rotate along the arc surface of the first arc-shaped groove, so that the first support plate and the base are rotationally connected through a virtual shaft, which is beneficial to reduce the space occupied by the first support plate on the base, thereby facilitating the narrow design of the hinge mechanism, and facilitating the miniaturization design of the electronic device.

[0037] In a possible implementation of the present application, the first rotating assembly can further include a first elastic member sleeved on the first rotating shaft. In addition, the first support plate can have a first cam surface in the axial direction of the first rotating shaft, and the first rotating member can have a second cam surface. In this way, the first cam surface and the second cam surface can be in abutment under the action of the first elastic member to generate a damping force in the process of relative rotation of the first support plate and the first rotating member. When the rotating shaft mechanism is applied to an electronic device, the damping force can make the user have a clear feeling in the process of folding the electronic device, thereby improving the user experience.

[0038] In order to improve the motion stability of the second rotating assembly, the second rotating assembly can further include a second support arm rotatably connected with the base, so that the first support arm and the second support arm jointly drive a housing of the electronic device to rotate, which is beneficial to improve the stability of the motion of the housing.

[0039] In the present application, the first rotating assembly can further include a second rotating member, at least a part of which can be accommodated in the notch of the first support plate. The second rotating member can be rotatably connected with the first support plate through the first rotating shaft. At this time, the first rotating member, the second rotating member and the first support plate are rotatably connected through the first rotating shaft, that is, the center line of the rotation connection between the first support plate and the second rotating member coincides with the center line of the rotation connection between the first support plate and the first rotating member. In addition, the second support arm is rotatably connected with the second rotating member. The rotation center line of the rotation connection between the second support arm and the base is the fifth axis, and the rotation center line of the rotation connection between the second support arm and the second rotating member is the sixth axis. The fifth axis and the sixth axis are arranged in a spaced manner. In this way, when the first rotating assembly and the second rotating assembly are relatively closed, the second support arm rotates around the base, the second rotating member moves towards the first support plate, so that the first support plate rotates around the base under the pushing of the second rotating member, and the first support plate rotates towards the second support arm. In addition, when the first rotating assembly and the second rotating assembly are relatively unfolded, the second support arm rotates around the base, the second rotating member moves towards the second support arm, so that the first support plate rotates around the base under the pulling of the second rotating member, and the first support plate rotates away from the second support arm, thereby realizing the synchronous reverse motion of the first rotating assembly and the second rotating assembly.

[0040] In addition, in the axial direction of the first rotating shaft, the first support plate can have a third cam surface, and the second rotating member can have a fourth cam surface. The third cam surface and the fourth cam surface can be in abutment, thereby generating a damping force in the process of relative rotation of the first support plate and the second rotating member. In this way, in the process of rotation of the first support plate around the base, two pairs of damping forces act on the first rotating assembly, which can improve the user's experience in use.

[0041] The first elastic member mentioned above can also act on the second rotating member, so that the third cam surface and the fourth cam surface are tightly matched under the elastic force of the first elastic member, so as to improve the damping force in the relative rotation process of the first support plate and the second rotating member.

[0042] In order to improve the consistency of the movement of the first support arm and the second support arm, the first support arm and the second support arm can be rotatably connected to the base through the second rotating shaft.

[0043] From the above introduction, it can be known that the damping force can be generated through the cooperation of the cam surfaces. Based on this, the second rotating assembly can also be reasonably designed to have the damping force in the process of rotation of the second rotating assembly. In a possible implementation of the present application, the base can further include a first cam member, the first cam member and the first support arm being rotatably connected through the second rotating shaft, and the first cam member being connected to the base through the third rotating shaft. In this way, the first cam member and the base have no rotating relationship.

[0044] In addition, the second rotating member can include a second elastic member, the second elastic member being sleeved on the second rotating shaft. In the axial direction of the second rotating shaft, the first support arm has a fifth cam surface, the fifth cam surface being arranged towards the second support arm; the first cam member can have a sixth cam surface, the sixth cam surface being arranged away from the second support arm. Under the elastic force of the second elastic member, the fifth cam surface and the sixth cam surface can abut against each other. In this way, in the process of rotation of the first support arm relative to the base, a damping force can be generated between them.

[0045] In a possible implementation of the present application, the base can further include a second cam member, the second cam member and the first cam member being rotatably connected through the third rotating shaft, and the second cam member and the second support arm being rotatably connected through the second rotating shaft. In addition, in the axial direction of the second rotating shaft, the second support arm can have a seventh cam surface, the seventh cam surface being arranged towards the first support arm. The second cam member can have an eighth cam surface, the eighth cam surface being arranged away from the first support arm. Then, under the action of the second elastic member, the seventh cam surface and the eighth cam surface can abut against each other. In this way, in the process of rotation of the second support arm relative to the base, a damping force can be generated between them.

[0046] In a possible implementation of the present application, the base can further include a first damping bracket and a second damping bracket. The first cam member abuts against the first damping bracket, and the second cam member abuts against the second damping bracket, so as to limit the first cam member and the second cam member in the axial direction.

[0047] In order to realize the abutment of the first cam member and the first damping support and the abutment of the second cam member and the second damping support, the base can further include a third elastic member, which can be sleeved on the third rotating shaft. Thus, under the elastic force of the third elastic member, the first cam member can abut against the first damping support, and the second cam member can abut against the second damping support.

[0048] In the present application, the first end of the second rotating shaft can be limitingly connected with the first damping support, and the second end of the second rotating shaft can be limitingly connected with the second damping support, so as to realize the limitation of the second rotating shaft in the axial direction. Similarly, the first end of the third rotating shaft can be limitingly connected with the first damping support, and the second end of the third rotating shaft can be limitingly connected with the second damping support, so as to realize the limitation of the third rotating shaft in the axial direction.

[0049] In addition, the first end of the second rotating shaft and the first end of the third rotating shaft can be connected with a first limiting piece, and the first limiting piece can abut against the first damping support, so as to realize the connection of the first end of the second rotating shaft and the first end of the third rotating shaft with the first damping support. Similarly, the second end of the second rotating shaft and the second end of the third rotating shaft can be connected with a second limiting piece, and the second limiting piece can abut against the second damping support, so as to realize the connection of the second end of the second rotating shaft and the second end of the third rotating shaft with the second damping support.

[0050] In a possible implementation manner of the present application, in the axial direction of the second rotating shaft, the second damping support can further have a ninth cam surface, and the second supporting arm can further have a tenth cam surface, so that under the action of the second elastic member, the ninth cam surface and the tenth cam surface can abut against each other. In this way, during the rotation of the second supporting arm relative to the base, a damping force can be generated between the second supporting arm and the base.

[0051] In a possible implementation manner of the present application, the base can include a bearing surface, which can be used to support the flexible display screen. The first supporting plate can include a first plate surface, which can be used to support the flexible display screen. In addition, the second rotating assembly includes a second supporting plate, a housing fixing frame and a swing arm, the second supporting plate is rotationally connected with the housing fixing frame, and the second supporting plate includes a second plate surface, which can be used to support the flexible display screen.

[0052] The swing arm can be rotationally connected with the base, and the rotation axis of the first supporting arm and the rotation axis of the swing arm are parallel but not coincident. In this way, the phase difference effect of the swing arm and the first supporting arm can be realized, so that during the rotation of the rotating shaft mechanism, the second rotating assembly can perform a telescopic motion relative to the base, so that it can adapt to the length of the flexible display screen, avoid pulling or pressing the flexible display screen, reduce the risk of damaging the flexible display screen, and prolong the service life of the flexible display screen.

[0053] In addition, the relative distance between the first rotating component and the base does not increase during rotation of the first rotating component about the base, which makes the structure on the first rotating component side of the rotating shaft mechanism simple and occupies less space, thereby facilitating reduction of the size of the entire rotating shaft mechanism, and facilitating miniaturization and thinning of the electronic device.

[0054] In a possible implementation of the present application, the first support arm is in sliding connection with the shell fixing frame, and the swing arm is in sliding connection with the shell fixing frame. The shell fixing frame can be provided with a first sliding groove extending in the first direction and a third sliding groove extending in the second direction, the first support arm can slide in the first sliding groove, and the swing arm can slide in the third sliding groove. In addition, the projection of the first direction on the first section and the projection of the second direction on the first section are not parallel. The first section is a reference plane perpendicular to the rotation axis of the first support arm and the rotation axis of the swing arm. In this way, the adjustment of the angle of rotation of the first support arm and the swing arm relative to the base can be realized by reasonably designing the opening direction of the first sliding groove and the third sliding groove. For example, the rotation angle of the first support arm and the swing arm can be less than 90°. In this way, the rotation angle of the first support arm and the swing arm relative to the base can be small, thereby avoiding the rotation of the swing arm from other structures of the rotating shaft mechanism, which can facilitate the increase of the wall thickness of the local structure of the swing arm, thereby improving the structural reliability of the swing arm. In addition, when the rotating shaft mechanism is applied to an electronic device, the components in the electronic device can be effectively avoided from being thinned to avoid the rotation of the swing arm, which can improve the reliability of the overall structure of the electronic device. Moreover, the risk of extrusion of the flexible display screen of the electronic device caused by the rotation of the swing arm can be reduced, which can reduce the risk of damage to the flexible display screen and prolong its service life.

[0055] With the above design, when the rotating shaft mechanism is in a closed state, the included angle between the first plate surface and the bearing surface is greater than the included angle between the second plate surface and the bearing surface, so as to form a screen accommodating space between the first plate surface, the second plate surface and the bearing surface for accommodating the bendable part of the flexible display screen. Here, the closed state of the rotating shaft mechanism does not necessarily mean that the two rotating components of the rotating shaft mechanism are completely matched and seamless, but means the state of the rotating shaft mechanism when the electronic device is in a closed state.

[0056] Since the first rotating assembly and the second rotating assembly are asymmetrically arranged relative to each other or the base in the rotating shaft mechanism provided in the present application, a triangular screen containing space that is inclined to the side of the first support plate can be formed between the first support plate, the second support plate and the base. When the rotating shaft mechanism is applied to the electronic device, the bendable part of the flexible display screen of the electronic device can be contained in the screen containing space and assume a eccentric water drop shape. In this way, the width of the bending area of the flexible display screen can be effectively reduced while avoiding extrusion of the flexible display screen and reducing the risk of damage to the flexible display screen, thereby improving the user experience. Meanwhile, since the structures on both sides of the rotating shaft mechanism do not need to be completely the same, the structure design on one side of the rotating shaft mechanism can be simplified, and such a design can also simplify the overall structure of the rotating shaft mechanism.

[0057] There are many ways to achieve the rotating connection between the second support plate and the shell fixing frame. In one possible implementation of the present application, a rotating groove can be arranged on the shell fixing frame, and a rotating part can be arranged on the first support plate. In this way, the rotating part can be installed in the rotating groove and can rotate along the groove surface of the rotating groove.

[0058] In addition, when the second rotating assembly includes a second support arm, the shell fixing frame can also be provided with a second sliding groove extending in the first direction, and the second support arm can slide in the second sliding groove. In this way, the adjustment of the angle of rotation of the second support arm relative to the base can be achieved by reasonably designing the opening direction of the second sliding groove. For example, the rotation angle of the second support arm can be less than 90°.

[0059] In another possible implementation of the present application, the swing arm can be in rotating connection with the shell fixing frame. With this scheme, a connecting rod and sliding block mechanism is formed between the first support arm and the swing arm, and the angle of rotation of the first support arm can be 90°, but the angle of rotation of the swing arm is greater than 90° during the process of the electronic device from the closed state to the unfolded state. BRIEF DESCRIPTION OF DRAWINGS

[0060] Figure 1 A structural schematic diagram of an electronic device provided in an embodiment of the present application in a closed state;

[0061] Figure 2 A structural schematic diagram of an electronic device provided in an embodiment of the present application in an unfolded state;

[0062] Figure 3 A structural schematic diagram of a screen containing space formed by a rotating shaft mechanism of the prior art provided in an embodiment of the present application;

[0063] Figure 4 An exploded structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0064] Figure 5 This is an exploded structural diagram of a rotating shaft mechanism provided in an embodiment of this application;

[0065] Figure 6 A partial structural schematic diagram of a rotating shaft mechanism provided in an embodiment of this application;

[0066] Figure 7a for Figure 6 Exploded view of the structure shown;

[0067] Figure 7b for Figure 6 An exploded view of the structure shown from another angle;

[0068] Figure 7c for Figure 6 A schematic diagram of the structure shown in the figure from another angle;

[0069] Figure 8 for Figure 5 The diagram shows the structure of the rotating shaft mechanism in the closed state.

[0070] Figure 9 A partial structural schematic diagram of a rotating shaft mechanism provided in another embodiment of this application;

[0071] Figure 10 This is a schematic diagram of the structure of a housing fixing frame provided in one embodiment of this application;

[0072] Figure 11 This is a schematic diagram showing the connection relationship between the swing arm and the housing fixing frame according to an embodiment of this application;

[0073] Figure 12 This is a schematic diagram of the structure of a swing arm provided in one embodiment of this application;

[0074] Figure 13 A partial structural schematic diagram of the base provided in an embodiment of this application;

[0075] Figure 14a A schematic diagram of the rotating shaft mechanism provided in an embodiment of this application in its unfolded state;

[0076] Figure 14b A schematic diagram of a first cross-section provided for an embodiment of this application;

[0077] Figure 14c A schematic diagram of the rotating shaft mechanism in an intermediate state according to an embodiment of this application;

[0078] Figure 14d A schematic diagram of the rotating shaft mechanism in a closed state according to an embodiment of this application;

[0079] Figure 15 A mechanism diagram of the first support arm and the swing arm sliding relative to the housing fixing frame provided by an embodiment of the present application;

[0080] Figure 16 A B-B sectional view of the structure shown in the middle; Figure 11

[0081] Figure 17 A structure diagram of the driving connecting rod provided by an embodiment of the present application;

[0082] Figure 18 A structure diagram of the second support plate provided by an embodiment of the present application;

[0083] Figure 19 A structure diagram of the two support plates supporting the flexible display screen provided by an embodiment of the present application;

[0084] Figure 20 A sectional view of the rotating shaft mechanism provided by an embodiment of the present application;

[0085] Figure 21 A structure diagram of the first support plate provided by an embodiment of the present application;

[0086] Figure 22 A sectional view of the rotating shaft mechanism provided by another embodiment of the present application;

[0087] Figure 23 A structure diagram of the rotating shaft mechanism in the closed state provided by another embodiment of the present application;

[0088] Figure 24 A sectional view of the rotating shaft mechanism in the closed state provided by an embodiment of the present application;

[0089] Figure 25 A structure diagram of the rotating shaft mechanism in the intermediate state provided by another embodiment of the present application;

[0090] Figure 26 A structure diagram of the rotating shaft mechanism in the closed state provided by another embodiment of the present application;

[0091] Figure 27 A structure diagram of the swing arm provided by another embodiment of the present application;

[0092] Figure 28 A structure diagram of the housing fixing frame provided by another embodiment of the present application;

[0093] Figure 29a A structure diagram of the electronic device in the unfolded state provided by another embodiment of the present application;

[0094] Figure 29b A structure diagram of the electronic device in the unfolded state provided by another embodiment of the present application;​Figure 29a A cross-sectional view of the electronic device shown in FIG. 1 1 ;

[0095] Figure 30a A structural schematic diagram of an electronic device provided by another embodiment of the present application in an intermediate state;

[0096] Figure 30b A structural schematic diagram of an electronic device provided by another embodiment of the present application in an intermediate state; Figure 30a A cross-sectional view of the electronic device shown in FIG. 1 1 ;

[0097] Figure 31a A structural schematic diagram of an electronic device provided by another embodiment of the present application in an intermediate state;

[0098] Figure 31b A structural schematic diagram of an electronic device provided by another embodiment of the present application in an intermediate state; Figure 31a A cross-sectional view of the electronic device shown in FIG. 1 1 ;

[0099] Reference signs:

[0100] 1 - rotation shaft mechanism; 101 - main shaft module; 101 1 - first rotation assembly; 101 11 - first support plate; 101 111 - notch;

[0101] 101 112 - first cam surface; 101 113 - third cam surface; 101 114 - first plate surface; 101 115 - second plate surface;

[0102] 101 116 - first arc-shaped rotation block; 101 12 - first rotation piece; 101 121 - second cam surface; 101 13 - first rotation shaft;

[0103] 101 14 - first elastic piece; 101 15 - second rotation piece; 101 151 - fourth cam surface;

[0104] 101 2 - second rotation assembly; 101 21 - first support arm; 101 211 - first sliding block; 101 212 - fifth cam surface;

[0105] 101 22 - first pin shaft; 101 23 - second support arm; 101 231 - seventh cam surface; 101 232 - tenth cam surface;

[0106] 101 24 - second rotation shaft; 101 24a - first end; 101 24b - second end; 101 25 - second pin shaft; 101 26 - second elastic piece;

[0107] 101 27 - second support plate; 101 271 - third plate surface; 101 272 - fourth plate surface; 101 273 - rotation part;

[0108] 101 274 - first guide part; 101 2741 - first track groove;

[0109] 10128 - housing fixing frame; 10128 1 - first sliding groove; 10128 1 1 - first sliding track; 10128 2 - second sliding groove;

[0110] 10128 2 1 - second sliding track; 10128 3 - third sliding groove; 10128 3 1 - third sliding track; 10128 4 - first surface;

[0111] 10128 5 - second surface; 10128 6 - rotating groove; 10128 7 - mounting portion;

[0112] 10129 - swing arm; 10129 1 - third sliding block; 10129 2 - second arc-shaped rotating block; 10129 3 - first guide structure;

[0113] 10129 4 - mounting hole;

[0114] 10130 - driving connecting rod; 10130 1 - first connecting portion; 10130 2 - second connecting portion; 10130 3 - first connecting rod;

[0115] 10130 4 - second connecting rod;

[0116] 102 - base; 102 1 - first damping support; 102 2 - second damping support; 102 2 1 - ninth cam surface;

[0117] 102 3 - third rotating shaft; 1023a - first end; 1023b - second end; 1024 - bearing surface; 1025 - second arc-shaped groove;

[0118] 102 6 - first arc-shaped groove; 102 7 - third elastic member;

[0119] 103 - first cam member; 103 1 - sixth cam surface; 104 - second cam member; 104 1 - eighth cam surface;

[0120] 105 - first limiting sheet; 106 - second limiting sheet; 107 - screen containing space;

[0121] 108 - end cover; 108 1 - first containing groove; 108 2 - third appearance surface;

[0122] 2 - first housing; 201 - first appearance surface; 202 - first supporting surface;

[0123] 3 - second housing; 301 - second appearance surface; 302 - second supporting surface; 303 - second containing groove;

[0124] 4 - flexible display screen; 501 - first axis; 502 - second axis; 503 - third axis; 504 - fourth axis;

[0125] 505 - Fifth axis; 506 - Sixth axis. Detailed Implementation

[0126] 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.

[0127] 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. Figure 1 (Not shown in the image), 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 either side of the rotating shaft mechanism 1 and can rotate around the rotating shaft mechanism 1. This electronic device can be closed and unfolded according to different usage scenarios during use. 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 201 of the first housing 2, and the second outer surface 301 of the second housing 3 can collectively serve as the outer surface of the electronic device. Specifically, the first outer surface 201 is the surface of the first housing 2 facing away from the flexible display screen, and the second outer surface 301 is the surface of the second housing 3 facing away from the flexible display screen 4.

[0128] Additionally, you can refer to Figure 2 , Figure 2 A schematic diagram of the electronic device in its unfolded state is shown. The first housing 2 includes a first support surface 202, which is the surface of the first housing 2 used to support the flexible display screen 4. The second housing 3 also includes a second support surface 302, which is the surface of the second housing 3 used to support the flexible display screen 4.

[0129] The flexible display screen 4 can continuously cover the first support surface 202 of the first housing 2, the second support surface 302 of the second housing 3, and the rotating shaft mechanism 1. The rotating shaft mechanism 1 is correspondingly arranged with the bendable portion of the flexible display screen 4. Furthermore, the flexible display screen 4 can be fixedly connected to the first support surface 202 of the first housing 2 and the second support surface 302 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.

[0130] 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.

[0131] 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.

[0132] 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.

[0133] The existing rotating shaft mechanism can include a base and two rotating assemblies which are symmetrically arranged relative to the base. Each rotating assembly can include a support arm, a swing arm and a housing fixing frame. The support arm and the swing arm are both rotatably connected with the base, the support arm is slidably connected with the housing fixing frame, the swing arm is rotatably connected with the housing fixing frame, and the housing fixing frame is fixedly connected with the housing of the electronic device. For each rotating assembly, during the rotation of the support arm and the swing arm around the base, since the axes of rotation of the support arm and the swing arm do not coincide, there is a phase difference between the support arm and the swing arm during the rotation around the base, which causes the length of the rotating shaft mechanism to increase when the electronic device is switched from the closed state shown in Figure 1 to the unfolded state shown in Figure 2 , and the length of the rotating shaft mechanism to decrease when the electronic device is switched from the unfolded state shown in Figure 2 to the closed state shown in Figure 1 . During the rotation of the rotating shaft mechanism, the extension length of the housing fixing frame relative to the base can be adjusted to adapt to the length of the part of the flexible display screen corresponding to the rotating shaft mechanism, so that the flexible display screen is not pulled or squeezed.

[0134] Since the existing rotating shaft mechanism adopts a symmetric design, the space for accommodating the flexible display screen 4 formed by the rotating shaft mechanism in the closed state of the electronic device is a symmetric space as shown in Figure 3 . The part of the flexible display screen 4 accommodated in the space for accommodating the flexible display screen 4 is in a bent state to form a symmetric drop shape, which makes the width of the area of the flexible display screen 4 bent during the process from the unfolded state to the closed state larger. In addition, the symmetric design of the rotating shaft mechanism also makes the width of the rotating shaft mechanism larger and the structure of the rotating shaft mechanism more complex, so that the rotating shaft mechanism occupies a larger space in the electronic device, which is not conducive to the improvement of the performance of the electronic device and the simplification of the structure of the electronic device.

[0135] The pivot mechanism provided in the present application aims to solve the above problems, so as to reduce the width of the pivot mechanism, simplify the structure of the pivot mechanism, reduce the weight of the pivot mechanism, so as to reduce the space occupied by the pivot mechanism in the whole electronic device, reserve more space for the arrangement of other components, improve the performance of the electronic device, and facilitate the miniaturization design of the electronic device. In addition, while the structure of the pivot mechanism is simplified, by designing the two housings of the electronic device as a non-equal-thickness structure, the structure of the electronic device can be further simplified, and the thickness of the electronic device in the closed state is smaller. In addition, the pivot mechanism can form an asymmetric screen containing space to meet the bending requirements of the flexible display screen, which is beneficial to reduce the width of the bending area of the flexible display screen, so as to avoid the deformation of the flexible display screen, reduce the extrusion or pulling stress of the flexible display screen, prolong the service life of the flexible display screen, improve the reliability of the electronic device, and improve the user experience. In order to facilitate the understanding of the pivot mechanism provided in the embodiments of the present application, the specific structure thereof will be described in detail below with reference to the drawings.

[0136] It is to be noted that the terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting to the present application. As used in the specification and the appended claims of the present application, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0137] In this specification, the reference to "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in additional embodiments," and so on, in various places in the specification are not necessarily all referring to the same embodiment, unless otherwise specifically stated. The terms "including," "containing," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

[0138] Referring to Figure 4 , Figure 4 For Figure 2 The exploded structural schematic diagram of the electronic device shown in FIG. 1 is shown in FIG. 2. The flexible display screen 4 (see FIG. 1) is omitted in FIG. 2, and in addition, Figure 4 The exploded structural schematic diagram of the electronic device shown in FIG. 1 is shown in FIG. 2. The flexible display screen 4 (see FIG. 1) is omitted in FIG. 2, and in addition, Figure 2 The exploded structural schematic diagram of the electronic device shown in FIG. 1 is shown in FIG. 2. The flexible display screen 4 (see FIG. 1) is omitted in FIG. 2, and in addition, Figure 4It can be seen that the first shell 2 and the second shell 3 are located at opposite sides of the rotating shaft mechanism 1. In the present application, the rotating shaft mechanism 1 can include a main shaft module 101, which can be one or multiple. For example, the rotating shaft mechanism 1 can include three main shaft modules 101, which are arranged at intervals along the length direction of the rotating shaft mechanism 1. In the present application, the length direction of the rotating shaft mechanism 1 is the extension direction of the axis of rotation of the first shell 2 and the second shell 3. The first shell 2 and the second shell 3 can be rotatably connected by the multiple main shaft modules 101, which can effectively improve the stability of the rotation of the first shell 2 and the second shell 3 of the electronic device relative to the rotating shaft mechanism 1. Figure 5 , Figure 5 As shown in the exploded structural schematic view of the rotating shaft mechanism 1 in Figure 4 , in the embodiment shown in Figure 5 , the rotating shaft mechanism 1 includes three main shaft modules 101, which are arranged at intervals along the length direction of the rotating shaft mechanism 1. In the present application, the length direction of the rotating shaft mechanism 1 is the extension direction of the axis of rotation of the first shell 2 and the second shell 3. The first shell 2 and the second shell 3 can be rotatably connected by the multiple main shaft modules 101, which can effectively improve the stability of the rotation of the first shell 2 and the second shell 3 of the electronic device relative to the rotating shaft mechanism 1.

[0139] In addition, as shown in Figure 5 , the rotating shaft mechanism 1 can further include a base 102. The main shaft module 101 can include a first rotating assembly 1011 and a second rotating assembly 1012, and the base 102 can serve as a bearing component of the first rotating assembly 1011 and the second rotating assembly 1012. The first rotating assembly 1011 and the second rotating assembly 1012 are arranged at opposite sides of the base 102 and are rotatably connected to the base 102.

[0140] It is worth mentioning that in a possible embodiment of the present application, when the main shaft module 101 is multiple, the first rotating assembly 1011 and the second rotating assembly 1012 of the multiple main shaft modules 101 can all use the same base 102 as the bearing component, so as to improve the degree of integration of the rotating shaft mechanism 1. In some other possible embodiments of the present application, the rotating shaft mechanism 1 can correspondingly provide one base 102 for each main shaft module 101, so that the first rotating assembly 1011 and the second rotating assembly 1012 of each main shaft module 101 use the corresponding base 102 as the bearing component.

[0141] Through the rotating shaft mechanism 1 in the above Figure 4 and Figure 5 , in the closed state, the eccentric water droplet shape shown in Figure 8 can be achieved. In addition, the rotating shaft mechanism 1 further has a synchronization mechanism for achieving the synchronous movement of the first rotating assembly 1011 and the second rotating assembly 1012, and a damping mechanism for providing a damping feel.

[0142] This mechanism design greatly simplifies the structural design of one side of the first rotating component 1011, thereby allowing for a thinner design of the first housing 2, enabling the first housing 2 and the second housing 3 to have unequal thicknesses. Furthermore, to achieve the thinning of the first housing 2, a portion of the structure of the first housing 2 can extend into the base 102 rather than outside the base 102. Based on this, the space within the base 102 for accommodating the synchronization mechanism and damping mechanism needs to be greatly compressed. The synchronization mechanism and damping mechanism involved in this application employ a simplified design, allowing them to be accommodated in this small space, thus providing space for the first housing 2. Of course, it is understood that the rotating shaft mechanism 1 of this application is not only applicable to the above scenarios; it can be used for any electronic device used to achieve the folding and synchronous movement of the two housings, as well as to provide damping force to the two housings.

[0143] The rotating shaft mechanism 1 will be described in detail below.

[0144] Reference Figure 6 , Figure 6 This is a partial structural schematic diagram of the rotating shaft mechanism 1 provided in the embodiments of this application, and Figure 6 The diagram illustrates the structure of a spindle module 101. The first rotating assembly 1011 may include a first support plate 10111, which is rotatably connected to a base 102. Furthermore, the first support plate 10111 has a notch 101111.

[0145] The first rotating assembly 1011 may further include a first rotating member 10112, at least a portion of which is received within a notch 101111 of the first support plate 10111. See also... Figure 7a , Figure 7a for Figure 6 The exploded view of the structure shown is shown. The first support plate 10111 and the first rotating member 10112 can be rotatably connected by the first rotating shaft 10113.

[0146] In this application, the rotation center line that rotatably connects the first support plate 10111 and the base 102 can be referred to as the first axis 501. Figure 7b Taking the connection between the first support plate 10111 and the base 102 via a virtual axis as an example, the rotation center line connecting the first support plate 10111 and the first rotating member 10112 is called the second axis 502, which is also the axis of the first rotating shaft 10113. (Refer to...) Figure 7b , Figure 7b for Figure 6 An exploded view of the structure shown from another angle, by Figure 7b It can be seen that the first axis 501 and the second axis 502 are set at intervals.

[0147] You can continue to refer toFigure 7a The second rotating assembly 1012 may include a first support arm 10121, which can rotate as shown in the figure. Figure 5 The base 102 shown rotates, and the first support arm 10121 is rotatably connected to the first rotating member 10112. This application does not limit the specific connection method between the two; for example, the first support arm 10121 and the first rotating member 10112 can be rotatably connected via the first pin 10122. Rotating the two components via a pin is a common connection method in the art and will not be elaborated upon here. In this application, the rotation center line of the first support arm 10121 about the base 102 can be called the third axis 503; and the rotation center line connecting the first support arm 10121 and the first rotating member 10112 can be called the fourth axis 504, which is also the axis of the first pin 10122. Figure 7b It can be seen that the third axis 503 and the fourth axis 504 are set at intervals.

[0148] The rotating shaft mechanism 1 provided in this application is used. When the first support arm 10121 rotates around the base 102, it can drive the first rotating member 10112 to move. For example, during the process of the first rotating assembly 1011 and the second rotating assembly 1012 closing relative to each other, the first support arm 10121 rotates around the base 102, which can cause the first rotating member 10112 to move towards the first support plate 10111. The first support plate 10111 rotates around the base under the push of the first rotating member 10112, and the first support plate 10111 and the first support arm 10121 rotate towards each other. During the relative unfolding of the first rotating assembly 1011 and the second rotating assembly 1012, the first support arm 10121 rotates around the base 102, causing the first rotating member 10112 to move toward the first support arm 10121. Meanwhile, the first support plate 10111 rotates around the base 102 under the pull of the first rotating member 10112, and rotates in opposite directions to the first support arm 10121. Thus, during the closing and unfolding of the rotating shaft mechanism 1, the first rotating assembly 1011 and the second rotating assembly 1012 can achieve synchronous opposite rotation, providing a synchronization mechanism for synchronous movement.

[0149] Additionally, you can continue to refer to Figure 7a Along the axial direction of the first rotating shaft 10113, the first support plate 10111 may also be provided with a first cam surface 101112, which may be a wall surface of the notch 101111. The first rotating member 10112 has a second cam surface 101121, which abuts against the first cam surface 101112.

[0150] It is worth mentioning that in the present application, the cam surface can include a plurality of protrusions and recesses, and when the inclined surfaces of the protrusions of the two cam surfaces are in contact, a damping force that hinders the continuous relative rotation of the two cam surfaces can be generated between the two cam surfaces.

[0151] The first rotating member 10112 is in abutment with the first support plate 10111 through the first cam surface 101112 and the second cam surface 101121, so that when the rotating shaft mechanism 1 is applied to an electronic device, the user can have a more obvious feeling during the process of unfolding or closing the electronic device, thereby facilitating the improvement of the user's experience.

[0152] In order to improve the tightness of the cooperation between the first cam surface 101112 and the second cam surface 101121, the first rotating assembly 1011 can further include a first elastic member 10114, which is exemplarily a spring. In addition, the first elastic member 10114 can be sleeved on the first rotating shaft 10113 and press the first rotating member 10112 towards the first support plate 10111, so that the first cam surface 101112 and the second cam surface 101121 are in abutment under the elastic force of the first elastic member 10114.

[0153] Continuing to refer to Figure 7a In the present application, in order to improve the stability of the movement of the rotating shaft mechanism 1, the first rotating assembly 1011 can further include a second rotating member 10115. At least part of the second rotating member 10115 can be accommodated in the notch 101111 of the first support plate 10111, and the second rotating member 10115 is rotatably connected with the first support plate 10111 through the first rotating shaft 10113, that is, at this time, the first support plate 10111, the first rotating member 10112 and the second rotating member 10115 are rotatably connected through the first rotating shaft 10113. In addition, the second rotating member 10115 and the first rotating member 10112 can also be fixed through a pin shaft to keep them synchronized and stable. Further, the second rotating member 10115 and the first rotating member 10112 can also be an integral structure.

[0154] In addition, along the axial direction of the first rotating shaft 10113, the first support plate 10111 can also have a third cam surface 101113, which can be another wall surface of the notch 101111. Exemplarily, the first cam surface 101112 and the third cam surface 101113 can be two oppositely arranged wall surfaces of the notch 101111.

[0155] Referring to Figure 7c , Figure 7c For Figure 6 the structure shown in the structure schematic view from another angle, which can be used to show the cooperation relationship between the cam surfaces. From Figure 7cIt can be seen that the second rotating member 10115 has a fourth cam surface 101151, and the third cam surface 101113 abuts against the fourth cam surface 101151. The first elastic member 10114 described above can also act on the second rotating member 10115 to press the second rotating member 10115 towards the first support plate 10111, so that the third cam surface 101113 and the fourth cam surface 101151 are tightly matched.

[0156] With reference to Figure 7a and Figure 7c , the second rotating assembly 1012 can further include a second support arm 10123, which can be rotatably connected with the base 102, and the rotation center line of the second support arm 10123 rotating around the base 102 can be referred to as a fifth axis 505. In the present application, the first support arm 10121 and the second support arm 10123 can be rotatably connected through a second rotating shaft 10124, and the first support arm 10121 and the second support arm 10123 can be rotatably connected with the base 102 through the second rotating shaft 10124. Therefore, it can be known that the third axis 503 and the fifth axis 505 can coincide.

[0157] In addition, the second support arm 10123 can be rotatably connected with the second rotating member 10115. In the present application, the specific connection manner of the two is not limited, and exemplarily, the second support arm 10123 and the second rotating member 10115 can be rotatably connected through a second pin shaft 10125. Rotatably connecting two components through a pin shaft is a common connection manner in the art, which will not be described herein. In the present application, the rotation center line of the second support arm 10123 and the second rotating member 10115 rotatably connected can be referred to as a sixth axis 506, and the rotation center line of the second rotating member 10115 rotating around the base 102 can be referred to as a seventh axis 507. Figure 7b It can be seen that the fifth axis 505 and the sixth axis 506 can be spaced apart.

[0158] In this way, during the relative closing of the first rotating assembly 1011 and the second rotating assembly 1012, the second support arm 10123 rotates around the base 102, so as to drive the second rotating member 10115 to move towards the first support plate 10111, and the first support plate 10111 rotates around the base 102 under the pushing of the second rotating member 10115, and the first support plate 10111 rotates towards the second support arm 10123. During the relative opening of the first rotating assembly 1011 and the second rotating assembly 1012, the second support arm 10123 rotates around the base 102, so as to drive the second rotating member 10115 to move towards the second support arm 10123, and the first support plate 10111 rotates around the base 102 under the pulling of the second rotating member 10115, and the first support plate 10111 rotates away from the first support arm 10121. Thus, during the closing and opening of the rotating shaft mechanism 1, the first support arm 10121 and the second support arm 10123 can drive the first rotating member 10112 and the second rotating member 10115 to rotate respectively, so as to realize the synchronous reverse rotation of the first rotating assembly 1011 and the second rotating assembly 1012. In addition, the first support plate 10111 rotates under the damping force generated by the relative rotation of the two pairs of abutting cam surfaces, which can effectively improve the stability of the rotation of the first support plate 10111.

[0159] Continuing to refer to Figure 7b and Figure 7c , the rotating shaft mechanism 1 can further include a first cam member 103, which is rotationally connected to the first support arm 10121 through a second rotating shaft 10124. In addition, the first support arm 10121 can have a fifth cam surface 101212 which is arranged towards the second support arm 10123 along the axial direction of the second rotating shaft 10124. The first cam member 103 can have a sixth cam surface 1031, and the fifth cam surface 101212 and the sixth cam surface 1031 abut. Based on this, it can be understood that the sixth cam surface 1031 is located on the side of the first cam member 103 away from the second support arm 10123.

[0160] In order to improve the tightness of the cooperation between the fifth cam surface 101212 and the sixth cam surface 1031, the second rotating assembly 1012 can further include a second elastic member 10126, which is exemplarily a spring. In addition, the second elastic member 10126 can be sleeved on the second rotating shaft 10124, and press the first cam member 103 towards the first support arm 10121, so that the fifth cam surface 101212 and the sixth cam surface 1031 abut under the elastic force of the second elastic member 10126.

[0161] In addition, the rotating shaft mechanism 1 can further include a second cam member 104, which is rotatably connected to the second support arm 10123 through a second rotating shaft 10124. The second support arm 10123 can have a seventh cam surface 101231, which can be arranged towards the first support arm 10121. The second cam member 104 has an eighth cam surface 1041, which is arranged away from the first support arm 10121, and the seventh cam surface 101231 abuts against the eighth cam surface 1041. The second elastic member 10126 can also act on the second cam member 104 to press the second cam member 104 towards the second support arm 10123, so that the seventh cam surface 101231 and the eighth cam surface 1041 are tightly matched.

[0162] With reference to the foregoing description Figure 7a , the first cam member 103 and the second cam member 104 can be connected through a third rotating shaft 1023. In addition, the first cam member 103 and the second cam member 104 are both connected to the second rotating shaft 10124, so that the degrees of freedom of the first cam member 103 and the second cam member 104 rotating around the base 102 are limited by the second rotating shaft 10124 and the third rotating shaft 1023, and the first cam member 103 and the second cam member 104 will not rotate relative to the base 102. Therefore, it can be understood that, in the process of the first support arm 10121 rotating around the base 102, the fifth cam surface 101212 can be caused to rotate relative to the sixth cam surface 1031 to generate a damping force. In addition, in the process of the second support arm 10123 rotating around the base 102, the seventh cam surface 101231 can be caused to rotate relative to the eighth cam surface 1041 to generate a damping force.

[0163] In addition, the base 102 can include a first damping support 1021 and a second damping support 1022. The first cam member 103 abuts against the first damping support 1021, and the second cam member 104 abuts against the second damping support 1022. In order to realize the abutment of the first cam member 103 and the first damping support 1021, and the abutment of the second cam member 104 and the second damping support 1022, the base 102 can further include a third elastic member 1027, which can be sleeved on the third rotating shaft 1023. Therefore, under the elastic force of the third elastic member 1027, the first cam member 103 can abut against the first damping support 1021, and the second cam member 104 can abut against the second damping support 1022. In addition, the first end 10124a of the second rotating shaft 10124 and the first end 1023a of the third rotating shaft 1023 can be clamped with the first damping support 1021, and the second end 10124b of the second rotating shaft 10124 and the second end 1023b of the third rotating shaft 1023 can be clamped with the second damping support 1022, so as to limit the axial directions of the second rotating shaft 10124 and the third rotating shaft 1023.

[0164] In the present application, the rotating shaft mechanism 1 can further comprise a first limiting piece 105, the first end 10124a of the second rotating shaft 10124 and the first end 1023a of the third rotating shaft 1023 can be clamped with the first limiting piece 105 respectively, so as to avoid the first cam member 103 and the first supporting arm 10121 and other components arranged on the second rotating shaft 10124 and the third rotating shaft 1023 from falling off from the corresponding rotating shafts, so as to improve the reliability of the structure of the rotating shaft mechanism 1. Similarly, the rotating shaft mechanism 1 can further comprise a second limiting piece 106, the second end 10124b of the second rotating shaft 10124 and the second end 1023b of the third rotating shaft 1023 can be clamped with the second limiting piece 106 respectively, so as to avoid the second cam member 104 and the second supporting arm 10123 and other components arranged on the second rotating shaft 10124 and the third rotating shaft 1023 from falling off from the corresponding rotating shafts, so as to improve the reliability of the structure of the rotating shaft mechanism 1.

[0165] In addition, along the axial direction of the second rotating shaft 10124, the second damping bracket 1022 has a ninth cam surface 10221 arranged towards the second supporting arm 10123. The second supporting arm 10123 further has a tenth cam surface 101232 arranged away from the first supporting arm 10121, i.e. the tenth cam surface 101232 and the seventh cam surface 101231 can be two surfaces of the second supporting arm 10123 arranged in opposite directions. The ninth cam surface 10221 and the tenth cam surface 101232 abut each other, and in addition, when the second elastic member 10126 is further sleeved on the second rotating shaft 10124, under the elastic force of the second elastic member 10126, the cooperation between the ninth cam surface 10221 and the tenth cam surface 101232 can be more close.

[0166] From the above, by arranging five pairs of abutting cam surfaces between the first rotating assembly 1011 and the second rotating assembly 1012, the stability of synchronous rotation of the first rotating assembly 1011 and the second rotating assembly 1012 can be effectively increased, and a larger damping force can also be generated between the two rotating assemblies. In this way, when the rotating shaft mechanism 1 is applied to electronic equipment, the user can have a more obvious feeling during the process of unfolding or closing the electronic equipment, thereby being conducive to improving the user's experience, i.e. providing a damping mechanism that provides a damping feeling.

[0167] It can be understood that, based on the above description of the arrangement of the abutting cam surfaces between the first rotating component 1011 and the second rotating component 1012, other abutting surfaces between the first rotating component 1011 and the second rotating component 1012 can also be arranged as cam surfaces according to specific application scenarios, to increase the damping force generated between the first rotating component 1011 and the second rotating component 1012. All of these should be understood as falling within the protection scope of the present application, and will not be described here.

[0168] Continuing to refer to Figure 6 and Figure 7a In the present application, the first support plate 10111 can include first and second plate surfaces 101114 and 101115 arranged opposite to each other. In addition, reference can be made to Figure 5 The second rotating component 1012 can also include a second support plate 10127 including third and fourth plate surfaces 101271 and 101272 arranged opposite to each other. The first plate surface 101114 and the third plate surface 101271 can be used to support the flexible display screen 4.

[0169] Referring to Figure 8 , Figure 8 As Figure 5 shown in the structure block diagram of the rotating shaft mechanism 1 in the closed state. As Figure 8 can be seen, the base 102 can include a bearing surface 1024 for supporting the flexible display screen 4. In addition, the angle between the first plate surface 101114 of the first support plate 10111 and the bearing surface 1024 can be greater than the angle between the third plate surface 101271 of the second support plate 10127 and the bearing surface 1024, so that a triangular screen containing space 107 inclined to the side of the second support plate 10127 can be formed between the first plate surface 101114, the second plate surface 101115 and the bearing surface 1024. The bendable portion of the flexible display screen 4 of the electronic device can be accommodated in the screen containing space 107 to form an eccentric water drop shape. In this way, the width of the bending area of the flexible display screen 4 can be small.

[0170] In order to enable the rotating shaft mechanism 1 to form the above-mentioned screen containing space 107, the structure of the second rotating component 1012 can be designed accordingly. Specifically, reference can be made to Figure 9 , Figure 9A partial structural schematic view of the rotating shaft mechanism 1 is provided in the embodiments of the present application. The second rotating assembly 1012 can further include a housing fixing frame 10128, which is located on the same side of the base 102 as the first support arm 10121 and is connected to the first support arm 10121. In addition, when the rotating shaft mechanism 1 provided by the present application is applied to an electronic device, the housing fixing frame 10128 can be fixedly connected to a housing of the electronic device.

[0171] When the housing fixing frame 10128 is specifically arranged, reference can be made to Figure 10 , Figure 10 A structural schematic view of the housing fixing frame 10128 is provided in a possible embodiment of the present application. In this embodiment, the housing fixing frame 10128 can be provided with a first sliding groove 101281 extending in a first direction. Reference can be made to Figure 9 and Figure 10 , the first support arm 10121 can be mounted on the first sliding groove 101281 and can slide in the first direction in the first sliding groove 101281. The first direction can be the direction in which the housing fixing frame 10128 moves towards or away from the base 102. In addition, in order to prevent the first support arm 10121 from falling out of the first sliding groove 101281, a first sliding groove 1012811 can be arranged on the groove wall of the first sliding groove 101281, and a first sliding block 101211 can be arranged on the first support arm 10121. In this way, the first sliding block 101211 can be clamped on the first sliding groove 1012811, and the first sliding block 101211 can slide along the first sliding groove 1012811, so as to limit the first support arm 10121 in the first sliding groove 101281. In addition, by arranging the first sliding groove 1012811 on the groove wall of the first sliding groove 101281, it can also guide the sliding of the first support arm 10121 along the first sliding groove 101281, thereby improving the stability of the movement of the first support arm 10121.

[0172] In addition, when the second rotating assembly 1012 further includes a second support arm 10123, the housing fixing frame 10128 can further be provided with a second sliding groove 101282, reference can be made to Figure 10, the second sliding groove 101282 can extend along a first direction, and the first sliding groove 101281 and the second sliding groove 101282 are arranged at intervals. In order to avoid the second support arm 10123 from falling out of the second sliding groove 101282, a second sliding groove 1012821 can be arranged on the groove wall of the second sliding groove 101282, and a second sliding block can be arranged on the second support arm 10123. In this way, the second sliding block can be clamped in the second sliding groove 1012821, and the second sliding block can slide along the second sliding groove 1012821, so as to limit the second support arm 10123 in the second sliding groove 101282. In addition, by arranging the second sliding groove 1012821 on the groove wall of the second sliding groove 101282, it also provides guidance for the sliding of the second support arm 10123 along the second sliding groove 101282, thereby improving the stability of the movement of the second support arm 10123.

[0173] In the present application, the second rotating assembly 1012 can also include a swing arm (not shown in the figure). Figure 9 In the present application, the swing arm is located on the same side of the base 102 as the first support arm 10121, and the swing arm is in sliding connection with the shell fixing frame 10128. It can be continued to refer to Figure 10 The shell fixing frame 10128 can also be provided with a third sliding groove 101283, which can extend along a second direction, and the first sliding groove 101281 and the third sliding groove 101283 are arranged at intervals along the length direction of the shell fixing frame 10128. It can be referred to Figure 11 , Figure 11 The connection relationship between the swing arm 10129 and the shell fixing frame 10128 is shown. The end of the swing arm 10129 facing the shell fixing frame 10128 can be mounted in the third sliding groove 101283, and the swing arm 10129 can slide in the third sliding groove 101283 along the second direction. In the present application, the shell fixing frame 10128 can include a first face 101284 and a second face 101285 arranged opposite to each other, wherein the first face 101284 can be the side surface of the shell fixing frame 10128 facing the flexible display screen 4 when the rotating shaft mechanism 1 is applied to an electronic device. Then the second direction can be the direction from the first face 101284 to the second face 101285, or from the second face 101285 to the first face 101284. In addition, the projection of the second direction on the first section can be not parallel to the projection of the first direction on the first section, wherein the first section can be a reference plane perpendicular to the rotation axis of the first support arm 10121 and the rotation axis of the swing arm 10129.

[0174] It can be continued to refer to Figure 10 In the present application, the third sliding groove 101283 can also be provided with a third sliding groove 1012831. In addition, it can be referred to Figure 12 , Figure 12A structure schematic view of the swing arm 10129 is provided in the present application. The swing arm 10129 is provided with a third sliding block 101291, so that the third sliding block 101291 can be clamped on the third sliding groove 1012831, and the third sliding block 101291 can slide in the third sliding groove 1012831 in the second direction, so as to limit the swing arm 10129 in the third sliding groove 101283, thereby avoiding the swing arm 10129 from falling off the third sliding groove 101283. In addition, by providing the third sliding groove 1012831 on the groove wall of the third sliding groove 101283, it can guide the sliding of the swing arm 10129 along the third sliding groove 101283, thereby improving the stability of the movement of the swing arm 10129.

[0175] In the present application, the swing arm 10129 can be rotatably connected with the base 102. In a possible embodiment of the present application, the swing arm 10129 and the base 102 can be rotatably connected through a virtual shaft. The virtual shaft refers to the axis of a circular arc structure. Two rotatably connected components can rotate relative to the virtual shaft, and the position of the virtual shaft is fixed with the relative rotation of the two rotatably connected components.

[0176] The rotatable connection of the swing arm 10129 and the base 102 through the virtual shaft can be beneficial to reduce the space occupied by the swing arm 10129 on the base 102, thereby facilitating the reduction of the volume of the main shaft module 101, so as to facilitate the miniaturization design of the rotation shaft mechanism 1. In specific implementation, the swing arm 10129 can be rotatably connected with the base 102 through the virtual shaft, and the swing arm 10129 can be rotatably connected with the base 102 through the virtual shaft. Figure 12 The end of the swing arm 10129 for connecting with the base 102 can be provided with a second arc-shaped rotating block 101292.

[0177] In addition, the swing arm 10129 can be rotatably connected with the base 102 through the virtual shaft, and the swing arm 10129 can be rotatably connected with the base 102 through the virtual shaft. Figure 13 , Figure 13 A partial structure schematic view of the base 102 is provided. The base 102 can be provided with a second arc-shaped groove 1025, and the second arc-shaped rotating block 101292 of the swing arm 10129 shown in the above Figure 12 The second arc-shaped rotating block 101292 of the swing arm 10129 can be accommodated in the second arc-shaped groove 1025 and can slide along the arc surface of the second arc-shaped groove 1025, thereby realizing the rotation of the swing arm 10129 around the base 102. By rotatably connecting the swing arm 10129 and the base 102 through the virtual shaft, it can be beneficial to reduce the space occupied by the swing arm 10129 on the base 102, thereby facilitating the reduction of the volume of the main shaft module 101, so as to facilitate the miniaturization design of the rotation shaft mechanism 1. It is worth mentioning that in the present application, the second arc-shaped rotating block 101292 can be but is not limited to a circular arc-shaped rotating block, and the second arc-shaped groove 1025 can be but is not limited to a circular arc-shaped groove.

[0178] In the present application, the swing arm 10129 can be rotatably connected with the base 102. In a possible embodiment of the present application, the swing arm 10129 and the base 102 can be rotatably connected through a virtual shaft. The virtual shaft refers to the axis of a circular arc structure. Two rotatably connected components can rotate relative to the virtual shaft, and the position of the virtual shaft is fixed with the relative rotation of the two rotatably connected components. Figure 13In the illustrated embodiment, the second arc-shaped groove 1025 is an integral channel structure directly formed on the base 102. This allows for an integrated design of the base 102, improving the structural reliability of the rotating shaft mechanism 1. Furthermore, the number of second arc-shaped grooves 1025 may be, but is not limited to, at least two. These at least two second arc-shaped grooves 1025 can be spaced apart along the length of the base 102, and can limit the movement of the second arc-shaped rotating block 101292, thereby improving the reliability of the connection between the second arc-shaped rotating block 101292 and the base 102.

[0179] In some other possible embodiments, the second arcuate groove 1025 may also be formed by two structures abutting each other. For example, the spindle module 101 may include a cover plate that can cover the base 102 to form an accommodating space between the cover plate and the base 102. Additionally, the portion of the cover plate covering the second arcuate groove 1025 may be provided with an arcuate protrusion, thus... Figure 12 The second arc-shaped rotating block 101292 of the swing arm 10129 shown can be inserted between the arc-shaped protrusion and the second arc-shaped groove 1025. This allows the arc-shaped protrusion to confine the second arc-shaped rotating block 101292 of the swing arm 10129 within the second arc-shaped groove 1025 of the base 102, reducing the risk of the swing arm 10129 detaching from the base 102 and thus improving the reliability of the swing arm 10129's movement.

[0180] In addition to being rotatably connected via a virtual axis, the swing arm 10129 and the base 102 can also be rotatably connected via a physical axis in some embodiments of this application. For example, the swing arm 10129 can be rotatably connected to the base 102 via a pin. Thus, when the rotating shaft mechanism 1 includes multiple spindle modules 101, the swing arm 10129 of at least one of the spindle modules 101 can be rotatably connected to the base 102 via a virtual axis, and the swing arm 10129 of at least one spindle module 101 can be rotatably connected to the base 102 via a solid axis. In this case, the swing arm 10129 of the spindle assembly opposite to the flexible display screen 4 of the electronic device can be rotatably connected to the base 102 via a virtual axis connection, while the swing arms 10129 of the spindle assembly located at the two ends of the rotating shaft mechanism 1 along its length can be rotatably connected to the base 102 via a physical axis connection.

[0181] Having understood the connection relationship between the first support arm 10121 and the swing arm 10129 and the base 102 and the housing fixing frame 10128 provided in the above embodiments of this application, the movement of the first support arm 10121 and the swing arm 10129 relative to the housing fixing frame 10128 will be described next. First, refer to Figure 14a ,Figure 14a The relative position between the housing fixing frame 10128 and the base 102 when the rotation shaft mechanism 1 is in the unfolded state is shown. At this time, the edge of the housing fixing frame 10128 facing the base 102 is closest to the base 102, and the third sliding block 101291 of the swing arm 10129 is closest to the first face 101284 of the housing fixing frame 10128.

[0182] From the above description of the embodiments, it can be known that when the rotation shaft mechanism 1 rotates from the unfolded state to the closed state, the first support arm 10121 can slide in the first sliding groove 101281 in the first direction, and the swing arm 10129 can slide in the third sliding groove 101283 in the second direction. In Figure 14a In the figure, the solid line with an arrow represents the first direction, and the dashed line with an arrow represents the second direction. In addition, reference can be made to Figure 14b , Figure 14b A schematic view of a first cross section provided by a possible embodiment is shown, in which the first direction and the second direction intersect, and the angle between the two directions can be an acute angle as shown in the figure, or can be other possible angles, such as a right angle or an obtuse angle.

[0183] Reference can be made to Figure 14c , Figure 14c The relative position between the housing fixing frame 10128 and the base 102 when the rotation shaft mechanism 1 is in the intermediate state is shown. By comparing Figure 14c and Figure 14a , it can be seen that during this process, the housing fixing frame 10128 can move away from the base 102 relative to the first support arm 10121, and drive the first support arm 10121 and the swing arm 10129 to rotate around the base 102. The second arc-shaped rotating block 101292 of the swing arm 10129 moves in the direction of sliding out of the second arc-shaped groove 1025, so that the portion of the second arc-shaped rotating block 101292 accommodated in the second arc-shaped groove 1025 decreases. At the same time, the third sliding block 101291 of the swing arm 10129 slides in the third sliding groove 1012831 from the first face 101284 to the second face 101285 of the housing fixing frame 10128.

[0184] In addition, reference can be made to Figure 14d , Figure 14d The relative position between the housing fixing frame 10128 and the base 102 when the electronic device is in the closed state is shown. By comparing Figure 14c to Figure 14dDuring the process, the shell fixing frame 10128 continues to move away from the base 102 relative to the first support arm 10121, and drives the first support arm 10121 to rotate around the base 102. The second arc-shaped rotating block 101292 of the swing arm 10129 continues to move out of the second arc-shaped groove 1025, so that the portion of the second arc-shaped rotating block 101292 accommodated in the second arc-shaped groove 1025 is further reduced. At the same time, the third sliding block 101291 of the swing arm 10129 continues to slide in the third sliding groove 101283 towards the second surface 101285 of the shell fixing frame 10128.

[0185] It can be understood that when the electronic device is rotated from the closed state shown in Figure 14d to the unfolded state shown in Figure 14a , the shell fixing frame 10128, the first support arm 10121 and the swing arm 10129 can move in opposite directions to the above rotation process, which will not be described here. Figure 14a to Figure 14d

[0186] Referring to Figure 15 , Figure 15 , the mechanism principle diagram of the first support arm 10121 and the swing arm 10129 relative to the shell fixing frame 10128 is provided. As can be seen from Figure 15 , by using the rotation shaft mechanism 1 provided by the present application, the rotation axes of the first support arm 10121 and the swing arm 10129 do not coincide when rotating around the base 102, so that the phase difference between the axes of the first support arm 10121 and the swing arm 10129 can be achieved. In addition, by reasonably designing the opening direction of the first sliding groove 101281 and the third sliding groove 101283, the angle of rotation of the first support arm 10121 and the swing arm 10129 relative to the base 102 can be less than or equal to 90°. Compared with the existing scheme, the rotation angle of the swing arm 10129 can be effectively reduced, so that the wall thickness design of the local structure of the swing arm 10129 (such as the structure at A of the swing arm 10129 shown in Figure 12 ) can meet the strength requirement, so that the structural reliability of the swing arm 10129 can be improved. In addition, it can also effectively avoid the thinning design of the components in the electronic device to avoid the rotation of the swing arm 10129, which can improve the reliability of the overall structure of the electronic device.

[0187] In addition, referring to Figure 14d , when the rotation shaft mechanism 1 is in the closed state, the first support arm 10121 and the swing arm 10129 are in the state shown in Figure 14d ​As shown, there is a supporting force on the housing fixing frame 10128 in the Z direction, which can effectively improve the motion engagement between the first support arm 10121 and the swing arm 10129 and the first housing fixing frame 10128, and also act as a stop for the housing fixing frame 10128 in this direction. In this way, even if the electronic device using the rotating shaft mechanism 1 falls in this closed state, the risk of the housing fixing frame 10128 undergoing a large instantaneous displacement relative to the rotating shaft mechanism 1 in this state can be effectively reduced, thereby ensuring the reliability of the overall structure of the electronic device.

[0188] Since the connection method between the second support arm 10123 and the housing fixing frame 10128 is the same as the connection method between the first support arm 10121 and the housing fixing frame 10128, the movement of the second support arm 10123 relative to the housing fixing frame 10128 during the movement of the rotating shaft mechanism 1 is similar to the movement of the first support arm 10121 relative to the housing fixing frame 10128, and will not be described in detail here.

[0189] In this application, the third slider 101291 of the swing arm 10129 can be adopted as follows: Figure 12 The linear structure shown can be adapted to the third slide rail 1012831 as follows: Figure 14a The linear slide is shown. Additionally, the linear slide has an opening located on the first surface 101284, when the rotating shaft mechanism 1 is in... Figure 14a In the unfolded state shown, the straight slide extends from the opening toward the base 102 to improve the smoothness of the sliding of the third slider 101291 along the third slide 1012831, and to reduce the interference of other structures of the pivot mechanism 1 on the swing arm 10129, thereby facilitating the increase of the wall thickness of the swing arm 10129 and improving the structural reliability of the swing arm 10129. In some other possible implementations of this application, the opening of the straight slide can also extend from the opening toward the direction away from the base 102, or the opening of the straight slide can extend from the opening toward the direction perpendicular to the second surface 101285, so that the arrangement of the third slide 1012831 is more flexible. It is worth mentioning that in this application, the third slider 101291 can also be other shapes adapted to the straight slide, such as a slider that is entirely straight with a hollow or spaced design in the middle, or some irregularly shaped sliders, as long as the slider can conform to the shape of the straight slide for sliding.

[0190] The third slider 101291 of the swing arm 10129 can also have other possible shapes besides the linear shape described above. For example, the second slider of the swing arm 10129 can also be designed as an arc-shaped slider, which can be a circular arc-shaped slider for example. In addition, in order to enable the arc-shaped slider of the swing arm 10129 to slide in the third sliding groove 101283 of the third sliding channel 1012831 of the housing fixed frame 10128, the third sliding channel 1012831 can be designed as an arc-shaped sliding channel, which can be a circular arc-shaped sliding channel for example. In this embodiment, the axis of the arc-shaped sliding channel is located on the side away from the base 102 of the arc-shaped sliding channel when the rotating shaft mechanism 1 is in the unfolded state. In this way, the sliding of the third slider 101291 along the third sliding channel 1012831 can be made smoother, and the angle of rotation of the swing arm 10129 relative to the base 102 can be 90°, which can effectively reduce the interference of other structures of the rotating shaft mechanism 1 with the movement of the swing arm 10129, thereby facilitating an increase in the wall thickness of the swing arm 10129.

[0191] In this embodiment, the sliding of the swing arm 10129 in the third sliding groove 101283 is the sliding of the arc-shaped slider in the arc-shaped sliding channel. During the movement of the rotating shaft mechanism 1 from the unfolded state to the closed state, or from the closed state to the unfolded state, the movement of the first support arm 10121 and the swing arm 10129 relative to the housing fixed frame 10128 can be referred to the above description. Figure 14a to Figure 14d Further description is not provided here.

[0192] In some other possible embodiments of the present application, the axis of the arc-shaped sliding channel can also be located on the side of the arc-shaped sliding channel facing the base 102 when the rotating shaft mechanism 1 is in the unfolded state. In this way, during the rotation of the rotating shaft mechanism 1 from the unfolded state to the closed state, the second slider of the swing arm 10129 slides in the second sliding channel 1012821 from the second face 101285 of the first housing fixed frame 10128 in the direction facing the first face 101284. During the rotation of the rotating shaft mechanism 1 from the closed state to the unfolded state, the third slider 101291 of the swing arm 10129 slides in the third sliding channel 1012831 from the first face 101284 of the first housing fixed frame 10128 in the direction facing the second face 101285.

[0193] It is worth mentioning that in the present application, when the third sliding groove 1012831 is an arc-shaped sliding groove, the third sliding block 101291 can also be other shapes that adapt to the arc-shaped sliding groove, for example, it can be a sliding block with an overall arc shape, a hollowed-out, spaced, or other design in the middle portion, or some special-shaped sliding block, as long as the sliding block can slide in the shape of the arc-shaped sliding groove. In addition, when the third sliding groove 1012831 is a circular arc-shaped sliding groove, the sliding of the third sliding block 101291 in the third sliding groove 1012831 can also be understood as the rotation of the third sliding block 101291 around the first shell fixed frame 10128.

[0194] In the present application, the projection of the second direction on the first section is not parallel to the projection of the first direction on the first section, in addition to the fact that they intersect, they can also be tangential or separated, which is not specifically limited in the present application. For example, when the third sliding block 101291 of the swing arm 10129 is designed as an arc-shaped sliding block, the sliding trajectory of the third sliding block 101291 of the swing arm 10129 is arc-shaped during the rotation of the rotation shaft mechanism 1, which can be circular arc-shaped, for example; while the sliding trajectory of the first support arm 10121 is still a straight line. At this time, the sliding trajectory of the third sliding block 101291 can intersect or be tangent to the sliding trajectory of the first support arm 10121, or be separated.

[0195] In the above embodiments of the present application, in order to improve the consistency and smoothness of the movement of the first support arm 10121 and the swing arm 10129, and the combination of the first support arm 10121 and the swing arm 10129 with the corresponding sliding groove, the structure shown in Figure 16 , Figure 16 for Figure 11 B-B cross-sectional view of the structure shown in the above embodiments of the present application, which can be used to show the connection relationship between the first support arm 10121 and the swing arm 10129. Among them, a driving connecting rod 10130 can be arranged between the first support arm 10121 and the swing arm 10129, and the driving connecting rod 10130 can be rotatably connected with the first support arm 10121 and the swing arm 10129, respectively. In specific implementation, the structure of the driving connecting rod 10130 can be referred to Figure 17 , Figure 17 for a possible embodiment of the present application. The structure of the driving connecting rod 10130 provided by the present application. The driving connecting rod 10130 can include a first connecting portion 101301 and a second connecting portion 101302. For reference Figure 16 and Figure 17The first connecting portion 101301 is rotatably connected to the first support arm 10121 through the first connecting rod 101303, and the second connecting portion 101302 is rotatably connected to the swing arm 10129 through the second connecting rod 101304. It is worth mentioning that the axes of the first connecting rod 101303 and the second connecting rod 101304 do not coincide, so as to reduce the risk of interference with the movement of the first support arm 10121 and the swing arm 10129.

[0196] By arranging the driving connecting rod 10130 between the first support arm 10121 and the swing arm 10129, the first support arm 10121, the swing arm 10129 and the driving connecting rod 10130 can jointly support the shell fixing frame 10128 when the rotating shaft mechanism 1 is in the closed state, so as to effectively improve the movement combination degree between the first support arm 10121, the swing arm 10129 and the shell fixing frame 10128, and play a role of limiting the position of the shell fixing frame 10128. In this way, even if the electronic device using the rotating shaft mechanism 1 falls in the closed state, the risk of instantaneous large displacement of the shell fixing frame 10128 relative to the rotating shaft mechanism 1 in this state can be effectively reduced, thereby ensuring the reliability of the overall structure of the electronic device.

[0197] In order to avoid the setting of the driving connecting rod 10130 from over-constraining the movement of the first support arm 10121 and the swing arm 10129, the third sliding block 101291 of the swing arm 10129 can also be designed to be thinned, so that the third sliding block 101291 of the swing arm 10129 and the third sliding groove 1012831 of the shell fixing frame 10128 can be gap-fitted. In specific implementation, the thickness of the third sliding block 101291 of the swing arm 10129 can be reduced, so that there is a gap between the third sliding block 101291 and the side wall of the third sliding groove 1012831. At this time, the shape of the third sliding block 101291 can be matched with the shape of the third sliding groove 1012831, for example, when the third sliding groove 1012831 is a rectangular sliding groove, the third sliding block 101291 can be arranged as a rectangular sliding block. Alternatively, the third sliding block 101291 can also be arranged as a pin shaft, so that the third sliding block 101291 can slide in the third sliding groove 1012831 while also rotating relative to the third sliding groove 1012831. Thus, during the sliding of the third sliding block 101291 along the third sliding groove 1012831, the degree of freedom of the movement of the swing arm 10129 can be increased, while the reliability of the cooperation between the swing arm 10129 and the third sliding groove 101283 of the shell fixing frame 10128 can also be taken into account.

[0198] It should be noted that in the above embodiment, the driving link 10130 is rotatably connected to the first support arm 10121 through the first link 101303, and rotatably connected to the swing arm 10129 through the second link 101304. In this way, the first support arm 10121, the first link 101303, the swing arm 10129 and the second link 101304 can form a four-bar linkage mechanism. It can be understood that by adjusting the length of the bars between the structures in the four-bar linkage mechanism, the four-bar linkage mechanism can be formed into a parallelogram or a non-parallelogram.

[0199] In addition, the driving link 10130 can also be provided in other possible manners in addition to the above embodiments. For example, by reasonably designing the structures of the driving link 10130, the swing arm 10129 and the first support arm 10121, the first connecting portion 101301 of the driving link 10130 can be slidably connected to the swing arm 10129 through the first link 101303, and the second connecting portion 101302 can be fixedly connected to the first support arm 10121. For example, a guide groove can be arranged at the end of the swing arm 10129 facing the first support arm 10121, and the first link 101303 can be inserted into the guide groove and can slide along the groove surface of the guide groove, so as to realize the sliding connection between the first link 101303 and the swing arm 10129. In addition, the second connecting portion 101302 of the driving link 10130 can be fixedly connected to the first support arm 10121 by means of bonding or threaded connection. In other possible embodiments of the present application, the driving link 10130 and the first support arm 10121 can also be formed as an integral structure.

[0200] It can be understood that in some possible embodiments of the present application, the driving link 10130 can also be slidably connected to the first support arm 10121 and fixedly connected to the swing arm 10129, and the specific arrangement manner is similar to the above embodiment that the driving link 10130 is slidably connected to the swing arm 10129 and fixedly connected to the first support arm 10121, which will not be described herein.

[0201] The drive linkage 10130, with this configuration, can be rationally designed using guide grooves to improve the engagement between the first support arm 10121 and the swing arm 10129 and their corresponding sliding grooves. This enhances the consistency of movement of the first support arm 10121 and the swing arm 10129, making their movement smoother. Furthermore, when an electronic device equipped with this rotating shaft mechanism 1 is dropped while in a closed state, the first support arm 10121, the swing arm 10129, and the drive linkage 10130 collectively support the device's housing, preventing large, instantaneous displacement of the housing relative to the rotating shaft mechanism 1 and thus improving the overall reliability of the electronic device.

[0202] In addition, in this embodiment, in order to avoid the setting of the drive link 10130 causing excessive constraint on the movement of the first support arm 10121 and the swing arm 10129, the third slider 101291 of the swing arm 10129 can be thinned so that the third slider 101291 of the swing arm 10129 and the third slide rail 1012831 of the first housing fixing frame 10128 have a clearance fit. The specific setting method can be referred to the above embodiment, and will not be described in detail here.

[0203] In this application, in order to form a screen-accommodating space between the first support plate 10111, the second support plate 10127, and the base 102, the second support plate 10127 and the housing fixing frame 10128 can be rotatably connected. It should be noted that the second support plate 10127 can be rotatably connected to multiple housing fixing frames 10128 located on the same side of the base 102, which simplifies the structure of the rotating shaft mechanism 1 and improves its structural reliability. Furthermore, when the rotating shaft mechanism 1 provided in this application is applied to an electronic device, the first support plate 10111 can be fixedly connected to a housing of the electronic device, or the first support plate 10111 can be part of a housing of the electronic device.

[0204] When specifically connecting the second support plate 10127 and the housing fixing frame 10128 by rotation, refer to the following: Figure 10 The housing mounting bracket 10128 shown may also be provided with a rotating groove 101286, which may be an arc-shaped groove. Additionally, see reference... Figure 18 , Figure 18A structural schematic view of the second support plate 10127 is provided for one possible embodiment of the present application. The end of the second support plate 10127 facing the shell fixing frame 10128 can be provided with a rotating portion 101273, which can be provided in an arc shape, for example, a circular arc shape. The rotating portion 101273 can be mounted in the rotating groove 101286, and the relative rotation between the first support plate 10111 and the shell fixing frame 10128 can be achieved by sliding the rotating portion 101273 along the groove surface of the rotating groove 101286.

[0205] Reference can be made to Figure 19 , Figure 19 A structural schematic view of the first support plate 10111 and the second support plate 10127 supporting the flexible display screen 4 is provided for one possible embodiment of the present application. In Figure 19 , the electronic device is in an unfolded state, at this time, the first plate surface 101114 of the first support plate 10111 and the third plate surface 101271 of the second support plate 10127 can be in the same plane as the bearing surface 1024 of the base 102, so as to achieve flat support for the flexible display screen 4.

[0206] Reference can be made to Figure 20 , Figure 20 A possible cross-sectional view of the rotating shaft mechanism 1 is provided for an embodiment of the present application. The Figure 20 can be used to show the structure of the fourth plate surface 101272 of the second support plate 10127, and the connection relationship between the second support plate 10127 and other structures of the rotating shaft mechanism 1. Among them, the fourth plate surface 101272 of the second support plate 10127 can be provided with a first guide portion 101274, which can be provided with a first track groove 1012741. In addition, in the present application, the swing arm 10129 can also be provided with a first guide structure 101293, which can be but not limited to a columnar structure, and the first guide structure 101293 can be inserted into the first track groove 1012741 of the first guide portion 101274 of the second support plate 10127, and can slide along the first track groove 1012741. In this way, during the rotation of the swing arm 10129 around the base 102, the second support plate 10127 can be driven to rotate around the shell fixing frame 10128 by the sliding of the first guide structure 101293 in the first track groove 1012741.

[0207] In another possible embodiment of the present application, the second support plate 10127 can also be driven to rotate around the housing fixing frame 10128 by the first support arm 10121. In specific implementation, the fourth plate surface 101272 of the second support plate 10127 can be provided with a first guide portion 101274, and the first guide portion 101274 can be provided with a first track groove 1012741. In addition, the first support arm 10121 can be provided with a first guide structure 101293, which can be but is not limited to a columnar structure, and the first guide structure 101293 can be inserted into the first track groove 1012741 of the first guide portion 101274 of the second support plate 10127 and can slide along the first track groove 1012741. In this way, during the rotation of the first support arm 10121 around the base 102, the first guide structure 101293 can be driven to slide in the first track groove 1012741, thereby driving the second support plate 10127 to rotate around the housing fixing frame 10128. In some possible embodiments of the present application, the second support plate 10127 can also be connected to the first support arm 10121 and the swing arm 10129 in a sliding manner, and the sliding connection manner can refer to the above embodiments, which will not be described here. Thus, the rotation of the first support arm 10121 and the swing arm 10129 around the base 102 can drive the rotation of the second support plate 10127 around the housing fixing frame 10128.

[0208] Reference Figure 21 , Figure 21 A structural schematic diagram of the first support plate 10111 provided for a possible embodiment of the present application. In the present application, the first support plate 10111 and the base 102 are connected in a single-axis rotating manner, and the rotating axes of the first support plate 10111 and the second support plate 10127 do not coincide. In specific implementation, one end of the first support plate 10111 for rotating connection with the base 102 can be provided with a first arc-shaped rotating block 101116. In addition, the first support plate 10111 can be connected to the base 102 in a virtual-axis connection manner by referring to the above embodiments, which will not be described here. Figure 22 , Figure 22 Another possible cross-sectional view of the rotating shaft mechanism 1 provided for an embodiment of the present application. The base 102 can also be provided with a first arc-shaped groove 1026, and the first arc-shaped rotating block 101116 can slide along the groove surface of the first arc-shaped groove 1026, so that the first support plate 10111 can be connected to the base 102 in a virtual-axis connection manner, which is beneficial to reduce the space occupied by the first support plate 10111 on the base 102, so as to facilitate the miniaturization design of the rotating shaft mechanism 1. In other possible embodiments of the present application, the first support plate 10111 can also be connected to the base 102 in a rotating connection manner through a physical rotating shaft, so as to improve the reliability of the connection between the first support plate 10111 and the base 102.

[0209] Thus, in one possible embodiment of the present application, when the rotating shaft mechanism 1 comprises a plurality of spindle assemblies, the first support plate 10111 of the spindle assembly arranged opposite to the flexible display 4 of the electronic device and the base 102 can be connected in a virtual shaft connection mode, while the first support plates 10111 of the spindle assemblies at the two ends in the length direction of the rotating shaft mechanism 1 and the base 102 are connected in a physical shaft connection mode.

[0210] From the above, when the first rotating assembly 1011 and the second rotating assembly 1012 rotate towards each other, the end of the second support plate 10127 close to the base 102 can be driven by the first support arm 10121 itself or the swing arm 10129 to move away from the base 102. Thus, referring to Figure 23 , Figure 23 It is shown that when the rotating shaft mechanism 1 is in the closed state, the first support plate 10111, the second support plate 10127 and the base 102 can form a screen containing space 107. From the above introduction of the structure of the rotating shaft mechanism 1, it can be understood that in the process of the electronic device from the unfolded state to the closed state, the second support plate 10127 can be driven by the swing arm 10129 and / or the first support arm 10121 to rotate around the housing fixed frame 10128, which can make the end of the second support plate 10127 close to the base 102 move away from the base 102. While the first support plate 10111 is always connected to the base 102 through the first arc-shaped rotating block 101116, which makes the first rotating assembly 1011 and the second rotating assembly 1012 of the rotating shaft mechanism 1 be asymmetrically arranged relative to each other or relative to the base 102. Such design can effectively reduce the width of the rotating shaft mechanism 1, make the structure of the rotating shaft mechanism 1 simpler, and reduce the weight of the rotating shaft mechanism 1.

[0211] In addition, referring to Figure 24 , Figure 24 for the structure that when the rotating shaft mechanism 1 is in the closed state, the bent part of the flexible display 4 is contained in the screen containing space 107 formed by the first support plate 10111, the second support plate 10127 and the base 102. From Figure 24 It can be seen that the screen containing space 107 formed between the first support plate 10111, the second support plate 10127 and the base 102 can be a triangular interval inclined to the side of the second support plate 10127, so that the bent part of the flexible display 4 contained in the screen containing space 107 presents Figure 24 the eccentric water drop shape shown in the middle. Thus, while avoiding extrusion on the flexible display 4 and thus reducing the risk of damage to the flexible display 4, the crease width of the flexible display 4 can be effectively reduced to improve the user experience.

[0212] Referring toFigure 25 , Figure 25 The structure schematic diagram of the pivot mechanism 1 in the intermediate state is provided in the present application. In the present application, the first rotating assembly 1011 and the second rotating assembly 1012 can be synchronously and reversely rotated, for example, from the closed state shown in Figure 23 to the intermediate state shown in Figure 25 , the first rotating assembly 1011 and the second rotating assembly 1012 are synchronously and oppositely rotated.

[0213] In addition, since the first supporting arm 10121 can slide along the first sliding groove 101281 of the shell fixing frame 10128, the shell fixing frame 10128 can be rotated at the same angle during the rotation of the first supporting arm 10121 around the base 102. Since the shell fixing frame 10128 is fixedly connected with one shell of the electronic device, the shell of the electronic device can be rotated at the same angle with the first supporting arm 10121. In addition, in the present application, the first supporting plate 10111 can be fixedly connected with another shell of the electronic device, so that the first supporting plate 10111 can be rotated at the same angle with the first supporting arm 10121 during the rotation of the first supporting arm 10121 around the base 102, so as to make the other shell of the electronic device rotate at the same angle with the first supporting plate 10111. In this way, the synchronous and reverse rotation of the first rotating assembly 1011 and the second rotating assembly 1012 can realize the synchronous and reverse rotation of the two shells of the electronic device, so as to avoid the instantaneous force applied to the flexible display screen 4 fixed to the two shells, thereby improving the reliability of the flexible display screen 4.

[0214] In addition, by arranging the first sliding groove 101281, the second sliding groove 101282 and the third sliding groove 101283 on the shell fixing frame 10128, and by making the first support arm 10121 slide in the first sliding groove 101281 in the first direction, the second support arm 10123 slide in the second sliding groove 101282 in the first direction, and the swing arm 10129 slide in the third sliding groove 101283 in the second direction during the rotation of the shell fixing frame 10128 around the base 102, and by making the projection of the first direction on the first section intersect with the projection of the second direction on the first section, where the first section can be a reference plane perpendicular to the rotation axis of the first support arm 10121 and the rotation axis of the swing arm 10129, the rotation axes of the first support arm 10121 and the swing arm 10129, and the rotation axes of the second support arm 10123 and the swing arm 10129 do not coincide during the rotation of the shell fixing frame 10128 around the base 102, so that the phase difference between the rotation axes of the first support arm 10121 and the swing arm 10129, and the rotation axes of the second support arm 10123 and the swing arm 10129 can be dynamically changed. In addition, by reasonably designing the opening direction of the first sliding groove 101281, the second sliding groove 101282 and the third sliding groove 101283, the angle between the first support arm 10121, the second support arm 10123 and the swing arm 10129 relative to the base 102 can be 90° or even less than 90°. For example, in the rotation shaft mechanism 1 provided in the present application, the rotation angle of the swing arm 10129 can be adjusted by adjusting the first track groove 1012741 of the second support plate 10127, so that the maximum rotation angle of the swing arm 10129 is less than or equal to 90°. For details, please refer to Figure 23 and Figure 24 Therefore, when the electronic device is in the closed state, the second arc-shaped rotating block 101292 of the swing arm 10129 is far away from the flexible display screen 4, so that the swing arm 10129 can avoid pressing or pulling the flexible display screen 4, thereby reducing the risk of damaging the flexible display screen 4 and prolonging the service life of the flexible display screen 4.

[0215] In addition, since the first support plate 10111 is always connected to the base 102 through the first arc-shaped rotating block 101116, when the electronic device is in the closed state, the screen containing space 107 formed by the rotation shaft mechanism 1 is a tilted triangular interval, so that the bent part of the flexible display screen 4 contained in the screen containing space 107 presents an eccentric water drop shape, which is beneficial to reduce the width of the bending area of the flexible display screen 4, improve the light and shadow of the flexible display screen 4, and improve the user experience.

[0216] For details, please refer to Figure 24In the present application, the flexible display 4 of the electronic device can be fixedly connected with the first support plate 10111 and the second support plate 10127, and the connection manner can be but is not limited to adhesion. In specific implementation, the flexible display 4 can be adhesively connected with a partial area of the first plate face 101114 of the first support plate 10111, for example, a partial area of the first plate face 101114 close to the corresponding side of the shell, and the flexible display 4 can be adhesively connected with a partial area of the third plate face 101271 of the second support plate 10127, for example, a partial area of the third plate face 101271 close to the base 102. Thus, when the rotating shaft mechanism 1 is in the unfolded state as shown in Figure 26 , the first support plate 10111, the second support plate 10127 and the base 102 can jointly stably support the flexible display 4. In the process of the rotating shaft mechanism 1 from the unfolded state to the closed state, the two support plates can drive the flexible display 4 to rotate, which can effectively avoid deformation of the flexible display 4, so as to reduce the risk of damage of the flexible display 4. Moreover, when the rotating shaft mechanism 1 is in the closed state as shown in Figure 24 , the flexible display 4 can be attached to the two support plates, which can be beneficial to improve the light and shadow of the flexible display 4.

[0217] In the rotating shaft mechanism 1 provided in the present application, the swing arm 10129 of the second rotating assembly 1012 and the shell fixing frame 10128 can be connected in other possible manners in addition to the sliding connection manner provided in the above embodiments.

[0218] For example, the swing arm 10129 can be rotatably connected with the shell fixing frame 10128. In specific implementation, reference can be made to Figure 27 , Figure 27 The structure diagram of the swing arm 10129 provided for another possible embodiment of the present application is shown in FIG. 13B. One end of the swing arm 10129 for mounting with the shell fixing frame 10128 is provided with a mounting hole 101294.

[0219] In addition, reference can be made to Figure 28 , Figure 28A structural schematic view of the housing fixing frame 10128 is provided for another possible embodiment of the present application. The housing fixing frame 10128 has a mounting portion 101287, which is spaced apart from the first sliding groove 101281 along the length direction of the housing fixing frame 10128. The mounting hole 101294 can be rotatably connected with the mounting portion 101287 through a rotating shaft. In another possible embodiment of the present application, the mounting hole 101294 can be arranged on the housing fixing frame 10128, and the mounting portion 101287 can be arranged on the swing arm 10129. In this case, the mounting hole 101294 and the mounting portion 101287 can also be rotatably connected through a rotating shaft.

[0220] In the embodiment of the present application, the connection manner of the swing arm 10129 and the base 102, and the connection manner of the first support arm 10121 and the housing fixing frame 10128 can refer to any of the above-mentioned embodiments. For example, the swing arm 10129 can be rotatably connected with the second arc-shaped groove 1025 of the base 102 through the second arc-shaped rotating block 101292, and the first support arm 10121 can slide along the first sliding groove 101281 of the housing fixing frame 10128. Alternatively, the second rotating assembly 1012 further includes a second support arm 10123, which can slide along the second sliding groove 101282 of the housing fixing frame 10128, and the like, which will not be described here.

[0221] The rotating shaft mechanism 1 provided by the above-mentioned embodiments of the present application can be used in electronic devices shown in, for example, Figure 2 . In this case, the first rotating assembly 1011 can be fixedly connected with one of the housings located on the same side of the base 102, and the second rotating assembly 1012 can be fixedly connected with the other housing. For example, the first support plate 10111 can be fixedly connected with the first housing 2 of the electronic device shown in Figure 2 , and the housing fixing frame 10128 of the second rotating assembly 1012 can be fixedly connected with the second housing 3 of the electronic device shown in Figure 2 . In this case, the first support plate 10111 can be a part of the middle frame of the first housing 2, that is, the first support plate 10111 is integrally formed with the middle frame of the first housing 2. In addition, the second support plate 10127 can also be independent, which can be fixedly connected with the first housing 2 through possible manners such as bonding or threaded connection.

[0222] In the present application, when the electronic device is in the state shown in Figure 29aIn the unfolded state shown, the bearing surface 1024 of the base 102, the first support surface 202 of the first shell 2, the second support surface 302 of the second shell 3, the first plate surface 101114 of the first support plate 10111 and the third plate surface 101271 of the second support plate 10127 can jointly serve to flatly support the flexible display screen 4, so that the integrity of the side of the flexible display screen 4 of the electronic device can be ensured in the unfolded state.

[0223] In addition, in order to ensure the integrity of the appearance of the electronic device, the electronic device can further include an end cover 108. In addition to serving as an appearance part of the electronic device, the end cover 108 can also serve to protect the structure in the rotation shaft mechanism 1. For reference, Figure 29b , Figure 29b For Figure 29a , a cross-sectional view of the electronic device shown in FIG. 1 is shown. In the present application, the end cover 108 can have a first accommodating groove 1081, and at least part of the base 102 can be accommodated in the first accommodating groove 1081. In addition, in the unfolded state of the electronic device as shown in Figure 29b , at least part of the first appearance surface 201 of the first shell 2 can be overlapped with the groove surface of the first accommodating groove 1081, so that the first shell 2 and the end cover 108 have a complete appearance surface in this state.

[0224] It is worth mentioning that in one possible embodiment of the present application, the first shell 2 can be a one-piece structure, and the appearance surface of the first shell 2 is the appearance surface of the one-piece structure. In other possible embodiments of the present application, the first shell 2 can also be an assembled part, for example, an assembled part of a middle frame and a cover plate arranged on the middle frame. At this time, the cover plate can be located on the side of the middle frame away from the flexible display screen, and the appearance surface of the first shell 2 refers to the surface of the cover plate away from the flexible display screen.

[0225] Continuing to refer to Figure 29b , the end of the second shell 3 facing the rotation shaft mechanism 1 can also have a second accommodating groove 303. The end cover 108 has a third appearance surface 1082, which is the surface of the end cover 108 away from the base 102. In the unfolded state of the electronic device as shown in Figure 29b , at least part of the third appearance surface 1082 can be overlapped with the groove surface of the second accommodating groove 303, so that the second shell 3 and the end cover 108 have a complete appearance surface in this state.

[0226] Based on this, when the electronic device is in Figure 29a and Figure 29bIn the unfolded state, the first appearance surface 201 of the first shell 2, the third appearance surface 1082 of the end cover 108, and the second appearance surface 301 of the second shell 3 are seamlessly connected to jointly constitute the appearance surface of the electronic device, so that the electronic device has a complete appearance surface in the unfolded state, thereby effectively improving the appearance aesthetics of the electronic device. In addition, in the unfolded state of the electronic device, the first appearance surface 201 and the flexible display screen 4 are spaced apart from each other, and the second appearance surface 301 and the flexible display screen 4 are also spaced apart from each other. Figure 2 and Figure 29a The spacing between the first appearance surface 201 and the flexible display screen 4 is smaller than the spacing between the second appearance surface 301 and the flexible display screen 4, thereby realizing the non-equal-thickness design of the first shell 2 and the second shell 3. This design can make the thickness of the first shell 2 smaller and lighter, and can simplify the structure of the first shell 2, which is beneficial to reducing the structure of the electronic device and reducing the weight of the electronic device, thereby improving the user experience.

[0227] Similarly to the first shell 2, in a possible embodiment of the present application, the second shell 3 can be a one-piece structure, and the appearance surface of the second shell 3 is the appearance surface of the one-piece structure. In other possible embodiments of the present application, the second shell 3 can also be an assembled part, for example, an assembled part of a middle frame and a cover plate arranged on the middle frame. At this time, the cover plate can be located on the side of the middle frame away from the flexible display screen, and the appearance surface of the second shell 3 refers to the surface of the cover plate away from the flexible display screen.

[0228] In addition, referring to Figure 29b The above design of the electronic device can also realize the non-equal-thickness design of the first shell 2 and the second shell 3, which is beneficial to simplifying the structure of the electronic device and reducing the weight of the entire electronic device. It can be understood that, by using the design of the electronic device provided in the present application, the structures with larger thickness such as the battery in the electronic device can be arranged in the second shell 3, and only the devices with smaller thickness such as the display circuit board can be arranged in the first shell 2, thereby reasonably arranging the devices in the electronic device.

[0229] In the present application, the first arc-shaped groove 1026 of the base 102 can be a whole hollow structure, which can be understood with reference to Figure 5 and Figure 13 The part of the base 102 facing the first shell 2 is hollowed out to form the first arc-shaped groove 1026 which is continuous and extends along the axial direction of the rotating shaft mechanism 1. In addition, it can be understood with reference to Figure 29bIn the unfolded state, at least part of the first housing 2 can be accommodated in the first arc-shaped slot 1026, and the part of the first housing 2 accommodated in the first arc-shaped slot 1026 can also be designed in an arc-shaped structure, so that the part of the first housing 2 can rotate in the first arc-shaped slot 1026 during rotation of the first housing 2 around the base 102. In this application, the part of the first housing 2 accommodated in the first arc-shaped slot 1026 can be designed in a standard arc-shaped structure, and the surface of the part of the first housing 2 away from the flexible display screen can be an arc surface. In other possible embodiments of this application, the part of the first housing 2 accommodated in the first arc-shaped slot 1026 can be designed in a non-standard arc-shaped structure, and the surface of the part of the first housing 2 away from the flexible display screen can be formed by connecting a plurality of arc surfaces, as long as at least part of the first housing 2 can rotate in the first arc-shaped slot 1026 and interference between the first housing 2 and the base 102 can be avoided.

[0230] Reference can be made to Figure 29b Since the first arc-shaped rotating block 101116 of the first support plate 10111 can also rotate in the first arc-shaped slot 1026, in this application, the surface of the part of the first housing 2 accommodated in the first arc-shaped slot 1026 towards the flexible display screen 4 can be fitted with the surface of the first arc-shaped rotating block 101116 away from the flexible display screen 4, so that the part of the first housing 2 accommodated in the first arc-shaped slot 1026 and the first arc-shaped rotating block 101116 can rotate around the base 102 with the same axis.

[0231] During movement of the electronic device from the unfolded state to the closed state as shown in Figure 29b , in addition to the fact that at least part of the first housing 2 can rotate in the first arc-shaped slot 1026 of the base 102, at least part of the third appearance surface 1082 can slide relative to the slot surface of the second accommodating slot 303. In actual implementation, reference can be made to Figure 30a , Figure 30a for a structural schematic diagram of the electronic device in the intermediate state. In addition, reference can be made to Figure 30b , Figure 30b for a cross-sectional view of the electronic device shown in Figure 30a . By comparing Figure 29b and Figure 30b , it can be seen that during movement of the electronic device from the unfolded state to the closed state, the first appearance surface 201 can move relative to the slot surface of the first accommodating slot 1081 in a direction away from the second appearance surface 301. In addition, the second appearance surface 301 can move relative to the third appearance surface 1082 in a direction away from the first appearance surface 201.

[0232] Reference can be made to Figure 31a , Figure 31a for a structural schematic diagram of the electronic device in the closed state. In addition, reference can be made to Figure 31b , Figure 31b forFigure 31a A cross-sectional view of the electronic device shown. (Compared to...) Figure 30b and Figure 31b It can be seen that during the process of the electronic device transitioning from the intermediate state to the closed state, the first outer surface 201 continues to slide relative to the groove surface of the first receiving groove 1081 in a direction away from the second outer surface 301. The third outer surface 1082 continues to move relative to the groove surface of the second receiving groove 303 in a direction away from the second outer surface 301. When the electronic device is in... Figure 31b In the closed state shown, the first outer surface 201 re-overlaps with the groove surface of the first receiving groove 1081, thereby creating a complete outer surface between the first housing 2 and the end cap 108. Additionally, in this closed state, the third outer surface 1082 re-overlaps with the groove surface of the second receiving groove 303, thereby creating a complete outer surface between the second housing 3 and the end cap 108.

[0233] Therefore, when electronic devices are in Figure 31a and Figure 31b In the unfolded state shown, the first outer surface 201 of the first housing 2, the third outer surface 1082 of the end cap 108, and the second outer surface 301 of the second housing 3 are seamlessly connected to form the outer surface of the electronic device. This ensures that the electronic device has a complete outer surface when closed, effectively improving its aesthetic appearance. Furthermore, when the electronic device is in this closed state, the distance between the first outer surface 201 and the flexible display screen 4 is also smaller than the distance between the second outer surface 301 and the flexible display screen 4, allowing for a non-uniform thickness design between the first housing 2 and the second housing 3. This design results in a smaller thickness and lighter weight on the first housing 2 side, and simplifies the structure of the first housing 2. This helps to simplify the structure and reduce the weight of the electronic device, thereby improving the user experience.

[0234] It is understandable that the process of an electronic device changing from a closed state to an unfolded state is a process of... Figure 31a to Figure 29a The process involves the relative positions of the first exterior surface 201, the second exterior surface 301, and the third exterior surface 1082 being the opposite of the process of the electronic device changing from an unfolded state to a closed state, which will not be elaborated here.

[0235] It is worth mentioning that in this application, when the electronic device is in the closed state, the first plate surface 101114 and the first support surface 202 can be located in the same plane, which can support the flexible display screen 4 when the electronic device is in the unfolded state. This is beneficial to achieve stable support for the flexible display screen 4, and also to simplify the mechanism design, reduce the difficulty of bonding the flexible display screen 4, so as to improve the structural reliability of the flexible display screen 4.

[0236] The electronic device of the present application, when in the closed state, can make the included angle between the first plate surface 101114 and the first support surface 202 smaller than the included angle between the third plate surface 101271 and the second support surface 302, so as to form a screen containing space 107 between the first plate surface 101114, the third plate surface 101271 and the bearing surface 1024. From the above introduction of the rotating shaft mechanism 1, it can be known that the screen containing space 107 is an inclined triangular interval, which can be beneficial to reduce the volume and weight of the rotating shaft mechanism 1, so as to reserve sufficient space for the arrangement of other components for the electronic device, thereby facilitating the improvement of the performance of the electronic device. In addition, the bent part of the flexible display screen 4 contained in the screen containing space 107 presents an eccentric water droplet shape, which is beneficial to reduce the width of the bent part of the flexible display screen 4, thereby improving the user experience.

[0237] It should be understood that, in order to realize the above-mentioned shape of the electronic device, the present application is not limited to the various rotating shaft mechanisms 1 mentioned above. As long as the rotating shaft mechanism 1 can realize the following state, it can be used, that is:

[0238] In the closed state and the unfolded state of the electronic device, the first appearance surface 201 is overlapped with the groove surface of the first accommodating groove 1081, and the third appearance surface 1082 is overlapped with the groove surface of the second accommodating groove 303, so as to realize the thinning design of the first shell 2 side of the electronic device, thereby simplifying the structure of the electronic device, reducing the weight, and making the thickness of the electronic device smaller when in the closed state. In addition, when the electronic device is in the closed state, the included angle between the first plate surface 101114 and the first support surface 202 is smaller than the included angle between the third plate surface 101271 and the second support surface 302, so as to form a screen containing space 107 between the first plate surface 101114, the third plate surface 101271 and the bearing surface 1024; or, when the electronic device is in the closed state, the included angle between the first plate surface 101114 of the first support plate 10111 and the bearing surface 1024 is greater than the included angle between the third plate surface 101271 of the second support plate 10127 and the bearing surface 1024, so as to form a triangular screen containing space 107 inclined to the first support plate 10111 between the first plate surface 101114, the second plate surface 101115 and the bearing surface 1024.

[0239] In addition, in the present application, the first track groove 1012741 of the second support plate 10127 can be reasonably designed to form an accommodation space between the two support plates and the base 102 sufficient to accommodate the bent portion of the flexible display screen 4 when the electronic device is in a closed state, which can avoid the existence of a gap in the hinge mechanism 1 of the electronic device, thereby ensuring that the appearance of the electronic device in the closed state is relatively complete. In this way, it can avoid the damage to the flexible display screen 4 caused by the insertion of foreign matter into the electronic device from the hinge mechanism 1, and can be beneficial to realize the thinning design of the overall thickness of the electronic device.

[0240] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A foldable electronic device, characterized in that, The system includes a first housing, a second housing, a pivot mechanism, a flexible display screen, and end caps. The first housing and the second housing are respectively disposed on opposite sides of the pivot mechanism, and the pivot mechanism enables the relative opening and closing of the first housing and the second housing. The flexible display screen continuously covers the first housing, the second housing, and the rotating shaft mechanism, and the flexible display screen is fixedly connected to the first housing and the second housing; The first housing includes a first outer surface, which is located on the side of the first housing opposite to the flexible display screen; The rotating shaft mechanism includes a base, the base having a first arc-shaped groove; The end cap has a first receiving groove on the side facing the flexible display screen, and at least a portion of the base is received in the first receiving groove; When the electronic device switches between a closed state and an unfolded state, at least a portion of the first housing near the base rotates within the first arcuate groove; and when the electronic device is in both a closed and unfolded state, the first outer surface overlaps with the groove surface of the first receiving groove.

2. The electronic device as claimed in claim 1, characterized in that, The second housing has a second outer surface located on the side of the second housing opposite to the flexible display screen; and the distance between the first outer surface and the flexible display screen is smaller than the distance between the second outer surface and the flexible display screen.

3. The electronic device as described in claim 1 or 2, characterized in that, The second housing has a second receiving groove, and the end cap has a third external surface located on the side of the end cap opposite to the base; When the electronic device is in the closed or unfolded state, the third outer surface overlaps with the groove surface of the second receiving groove.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The rotating shaft mechanism further includes a main shaft module, which includes a first rotating component and a second rotating component, the first rotating component and the second rotating component being disposed on opposite sides of the base; The first rotating assembly includes a first support plate, which is rotatably connected to the base and fixedly connected to the first housing. The second rotating assembly includes a first support arm and a housing fixing frame. The first support arm is rotatably connected to the base, the housing fixing frame is fixedly connected to the second housing, and the first support arm is slidably connected to the housing fixing frame.

5. The electronic device as claimed in claim 4, characterized in that, The first support plate includes a first plate surface, which is used to support the flexible display screen; the flexible display screen is bonded to the first plate surface.

6. The electronic device as claimed in claim 5, characterized in that, The first support plate has 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.

7. The electronic device as claimed in claim 5 or 6, characterized in that, The first rotating assembly further includes a first rotating member, the first support plate has a notch, at least a portion of the first rotating member is accommodated in the notch, and the first support plate and the first rotating member are rotatably connected by a first rotating shaft; the first support arm is rotatably connected to the first rotating member; The rotation center line of the first support plate rotatably connected to the base is the first axis; the rotation center line of the first support plate rotatably connected to the first rotating component is the second axis; the first axis and the second axis are spaced apart. The rotation center line of the first support arm rotatably connected to the base is the third axis; the rotation center line of the first support arm rotatably connected to the first rotating component is the fourth axis; the third axis and the fourth axis are spaced apart. When the first housing and the second housing are closed relative to each other, the first support arm rotates around the base, the first rotating member moves toward the first support plate, the first support plate rotates around the base, and the first support plate rotates in opposite directions to the first support arm; when the first housing and the second housing are unfolded relative to each other, the first support arm rotates around the base, the first rotating member moves toward the first support arm, the first support plate rotates around the base, and the first support plate rotates in opposite directions to the first support arm.

8. The electronic device as claimed in claim 7, characterized in that, The first rotating assembly further includes a first elastic element, which is sleeved on the first rotating shaft; Along the axial direction of the first rotating shaft, the first support plate has a first cam surface, and the first rotating member has a second cam surface. Under the action of the elastic force of the first elastic member, the first cam surface and the second cam surface abut against each other.

9. The electronic device as claimed in claim 8, characterized in that, The second rotating assembly further includes a second support arm, which is rotatably connected to the base and slidably connected to the housing fixing frame.

10. The electronic device as claimed in claim 9, characterized in that, The first rotating assembly further includes a second rotating member, at least a portion of which is accommodated in the notch, and the second rotating member is rotatably connected to the first support plate via the first rotating shaft; the second support arm is rotatably connected to the second rotating member; The rotation center line of the second support arm rotatably connected to the base is the fifth axis, and the rotation center line of the second support arm rotatably connected to the second rotating component is the sixth axis. The fifth axis and the sixth axis are spaced apart. When the first housing and the second housing are closed relative to each other, the second support arm rotates around the base, the second rotating member moves toward the first support plate, the first support plate rotates around the base, and the first support plate and the second support arm rotate toward each other; when the first housing and the second housing are unfolded relative to each other, the second support arm rotates around the base, the second rotating member moves toward the second support arm, the first support plate rotates around the base, and the first support plate and the second support arm rotate in opposite directions.

11. The electronic device as claimed in claim 10, characterized in that, Along the axial direction of the first rotating shaft, the first support plate also has a third cam surface, and the second rotating member has a fourth cam surface. Under the elastic force of the first elastic member, the third cam surface abuts against the fourth cam surface.

12. The electronic device according to any one of claims 9 to 11, characterized in that, The first support arm and the second support arm are rotatably connected to the base via a second rotating shaft.

13. The electronic device as claimed in claim 12, characterized in that, The base also includes a first cam member, which is rotatably connected to the first support arm via a second rotating shaft, and the first cam member is also connected to the base via a third rotating shaft; The second rotating assembly further includes a second elastic element, which is sleeved on the second rotating shaft; along the axial direction of the second rotating shaft, the first support arm has a fifth cam surface, which is disposed facing the second support arm; the first cam element has a sixth cam surface, which is disposed away from the second support arm; under the elastic force of the second elastic element, the fifth cam surface abuts against the sixth cam surface.

14. The electronic device as claimed in claim 13, characterized in that, The base further includes a second cam member, which is rotatably connected to the second support arm via the second rotating shaft, and the second cam member is connected to the first cam member via the third rotating shaft; Along the axial direction of the second rotating shaft, the second support arm has a seventh cam surface, which is disposed facing the first support arm; the second cam member has an eighth cam surface, which is disposed away from the first support arm; under the elastic force of the second elastic member, the seventh cam surface and the eighth cam surface abut against each other.

15. The electronic device as claimed in claim 14, characterized in that, The base also includes a first damping bracket and a second damping bracket, the first cam abutting against the first damping bracket, and the second cam abutting against the second damping bracket; The first end of the second rotating shaft is engaged with the first damping bracket for limiting and locking; the second end of the second rotating shaft is engaged with the second damping bracket for limiting and locking; the first end of the third rotating shaft is engaged with the first damping bracket for limiting and locking; the second end of the third rotating shaft is engaged with the second damping bracket for limiting and locking.

16. The electronic device as claimed in claim 15, characterized in that, Along the axial direction of the second rotating shaft, the second damping bracket has a ninth cam surface, which is disposed toward the second support arm; the second support arm also has a tenth cam surface, which is disposed away from the first support arm; under the elastic force of the second elastic element, the ninth cam surface abuts against the tenth cam surface.

17. The electronic device as claimed in claim 15 or 16, characterized in that, The base also includes a third elastic element, which is sleeved on the third rotating shaft; under the elastic force of the third elastic element, the first cam abuts against the first damping bracket, and the second cam abuts against the second damping bracket.

18. The electronic device according to any one of claims 13 to 17, characterized in that, The rotating shaft mechanism includes a first limiting piece, and the first end of the second rotating shaft and the first end of the third rotating shaft are engaged with the first limiting piece. And / or, the rotating shaft mechanism includes a second limiting piece, and the second end of the second rotating shaft and the second end of the third rotating shaft are engaged with the second limiting piece.

19. The electronic device according to any one of claims 9 to 18, characterized in that, The base includes a bearing surface for supporting the flexible display screen. The second rotating assembly further includes a second support plate and a swing arm. The second support plate is rotatably connected to the housing fixing frame, and the second support plate includes a second plate surface for supporting the flexible display screen. The swing arm is rotatably connected to the base, and the rotation axis of the first support arm and the rotation axis of the swing arm are parallel but not coincident; the swing arm is slidably connected to the housing fixing frame, and the housing fixing frame is provided with a first sliding groove extending along a first direction and a third sliding groove extending along a second direction. The first support arm can slide in the first sliding groove, and the swing arm can slide in the third sliding groove; the projection of the first direction on the first cross section is not parallel to the projection of the second direction on 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 swing arm; When the electronic device is in a closed state, the angle between the first plate surface and the supporting surface is greater than the angle between the second plate surface and the supporting surface, so as to form a screen-accommodating space between the first plate surface, the second plate surface and the supporting surface for accommodating the bendable portion of the flexible display screen.

20. The electronic device as claimed in claim 19, characterized in that, The housing fixing frame is also provided with a second sliding groove extending along the first direction, and the second support arm can slide in the second sliding groove.

21. A hinge mechanism for a foldable electronic device, the hinge mechanism being correspondingly disposed with a bendable portion of a flexible display screen of the electronic device, the electronic device being unfolded or closed via the hinge mechanism, characterized in that... The rotating shaft mechanism includes a base and a main shaft module, wherein: The spindle module includes a first rotating component and a second rotating component, which are disposed on opposite sides of the base. The first rotating assembly includes a first support plate and a first rotating member. The first support plate has a notch, at least a portion of the first rotating member is accommodated in the notch, and the first support plate and the first rotating member are rotatably connected by a first rotating shaft. The second rotating assembly includes a first support arm, which is rotatably connected to the base and rotatably connected to the first rotating member; The rotation center line of the first support plate rotatably connected to the base is the first axis; the rotation center line of the first support plate rotatably connected to the first rotating component is the second axis; the first axis and the second axis are spaced apart. The rotation center line of the first support arm rotatably connected to the base is the third axis; the rotation center line of the first support arm rotatably connected to the first rotating component is the fourth axis; the third axis and the fourth axis are spaced apart. When the first rotating assembly and the second rotating assembly are closed relative to each other, the first support arm rotates around the base, the first rotating member moves toward the first support plate, the first support plate rotates around the base, and the first support plate rotates in opposite directions to the first support arm; when the first rotating assembly and the second rotating assembly are open relative to each other, the first support arm rotates around the base, the first rotating member moves toward the first support arm, the first support plate rotates around the base, and the first support plate rotates in opposite directions to the first support arm.

22. The rotating shaft mechanism as described in claim 21, characterized in that, The first rotating assembly further includes a first elastic element, which is sleeved on the first rotating shaft; Along the axial direction of the first rotating shaft, the first support plate has a first cam surface, and the first rotating member has a second cam surface. Under the action of the elastic force of the first elastic member, the first cam surface and the second cam surface abut against each other.

23. The rotating shaft mechanism as described in claim 22, characterized in that, The second rotating assembly further includes a second support arm, which is rotatably connected to the base.

24. The rotating shaft mechanism as described in claim 23, characterized in that, The first rotating assembly further includes a second rotating member, at least a portion of which is accommodated in the notch, and the second rotating member is rotatably connected to the first support plate via the first rotating shaft; the second support arm is rotatably connected to the second rotating member; The rotation center line of the second support arm rotatably connected to the base is the fifth axis, and the rotation center line of the second support arm rotatably connected to the second rotating component is the sixth axis. The fifth axis and the sixth axis are spaced apart. When the first rotating assembly and the second rotating assembly are closed relative to each other, the second support arm rotates around the base, and the second rotating member moves toward the first support plate; the first support plate rotates around the base, and the first support plate and the second support arm rotate toward each other; when the first rotating assembly and the second rotating assembly are unfolded, the second support arm rotates around the base, and the second rotating member moves toward the second support arm; the first support plate rotates around the base, and the first support plate and the second support arm rotate in opposite directions.

25. The rotating shaft mechanism as described in claim 24, characterized in that, Along the axial direction of the first rotating shaft, the first support plate also has a third cam surface, and the second rotating member has a fourth cam surface. Under the elastic force of the first elastic member, the third cam surface abuts against the fourth cam surface.

26. The rotating shaft mechanism as described in any one of claims 23 to 25, characterized in that, The first support arm and the second support arm are rotatably connected to the base via a second rotating shaft.

27. The rotating shaft mechanism as described in claim 26, characterized in that, The base further includes a first cam member, which is rotatably connected to the first support arm via a second rotating shaft, and the first cam member is connected to the base via a third rotating shaft; The second rotating assembly further includes a second elastic element, which is sleeved on the second rotating shaft; along the axial direction of the second rotating shaft, the first support arm has a fifth cam surface, which is disposed facing the second support arm; the first cam element has a sixth cam surface, which is disposed away from the second support arm; under the elastic force of the second elastic element, the fifth cam surface abuts against the sixth cam surface.

28. The rotating shaft mechanism as described in claim 27, characterized in that, The base further includes a second cam member, which is rotatably connected to the second support arm via the second rotating shaft, and the second cam member is rotatably connected to the first cam member via the third rotating shaft; Along the axial direction of the second rotating shaft, the second support arm has a seventh cam surface, which is disposed facing the first support arm, and the second cam member has an eighth cam surface, which is disposed away from the first support arm; under the elastic force of the second elastic member, the seventh cam surface and the eighth cam surface abut against each other.

29. The rotating shaft mechanism as described in claim 28, characterized in that, The base also includes a first damping bracket and a second damping bracket, the first cam abutting against the first damping bracket, and the second cam abutting against the second damping bracket; The first end of the second rotating shaft is engaged with the first damping bracket for limiting and locking; the second end of the second rotating shaft is engaged with the second damping bracket for limiting and locking; the first end of the third rotating shaft is engaged with the first damping bracket for limiting and locking; the second end of the third rotating shaft is engaged with the second damping bracket for limiting and locking.

30. The rotating shaft mechanism as described in claim 29, characterized in that, Along the axial direction of the second rotating shaft, the second damping bracket has a ninth cam surface, which is disposed toward the second support arm; the second support arm also has a tenth cam surface, which is disposed away from the first support arm; under the elastic force of the second elastic element, the ninth cam surface abuts against the tenth cam surface.

31. The rotating shaft mechanism as described in claim 29 or 30, characterized in that, The base also includes a third elastic element, which is sleeved on the third rotating shaft; under the elastic force of the third elastic element, the first cam abuts against the first damping bracket, and the second cam abuts against the second damping bracket.

32. The rotating shaft mechanism according to any one of claims 27 to 31, characterized in that, The rotating shaft mechanism includes a first limiting piece, and the first end of the second rotating shaft and the first end of the third rotating shaft are engaged with the first limiting piece. And / or, the rotating shaft mechanism includes a second limiting piece, and the second end of the second rotating shaft and the second end of the third rotating shaft are engaged with the second limiting piece.

33. The rotating shaft mechanism according to any one of claims 23 to 32, characterized in that, The base includes a bearing surface for supporting the flexible display screen; the first support plate includes a first plate surface for supporting the flexible display screen. The second rotating assembly further includes a second support plate, a housing fixing frame, and a swing arm. The second support plate is rotatably connected to the housing fixing frame, and the second support plate includes a second plate surface for supporting the flexible display screen. The swing arm is rotatably connected to the base, and the rotation axis of the first support arm and the rotation axis of the swing arm are parallel but not coincident; the first support arm is slidably connected to the housing fixing frame, and the swing arm is slidably connected to the housing fixing frame; the housing fixing frame is provided with a first sliding groove extending along a first direction and a third sliding groove extending along a second direction; the first support arm can slide in the first sliding groove, and the swing arm can slide in the third sliding groove; the projection of the first direction on the first cross section is not parallel to the projection of the second direction on 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 swing arm; When the pivot mechanism is in the closed state, the angle between the first plate surface and the bearing surface is greater than the angle between the second plate surface and the bearing surface, so as to form a screen-accommodating space between the first plate surface, the second plate surface and the bearing surface for accommodating the bendable portion of the flexible display screen.

34. The rotating shaft mechanism as described in claim 33, characterized in that, The housing fixing frame is also provided with a second sliding groove extending along the first direction, and the second support arm can slide in the second sliding groove.

35. The rotating shaft mechanism according to any one of claims 21 to 34, characterized in that, The base is also provided with a first arc-shaped groove, and a first arc-shaped rotating block is provided at one end of the first support plate 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.

Images