CN118815818B

CN118815818B - A rotating shaft assembly and electronic equipment

Info

Publication number: CN118815818B
Application number: CN202411296098.XA
Authority: CN
Inventors: 杨德森; 臧永强; 吴崚; 霍国亮; 李匡
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-09-18
Filing date: 2024-09-18
Publication date: 2025-04-11
Anticipated expiration: 2044-09-18
Also published as: CN118815818A

Abstract

The application provides a rotating shaft assembly and electronic equipment, which relates to the technical field of electronic equipment, wherein the rotating shaft assembly comprises a shaft seat and a flexible display screen supporting plate assembly for supporting the electronic equipment, the supporting plate assembly at least comprises a main supporting plate arranged on two sides of the shaft seat along the width direction of the rotating shaft assembly, an elastic piece is positioned between the main supporting plate and the shaft seat along the width direction of the rotating shaft assembly, the main support plate is rotatably connected with the shaft seat through an elastic piece, when the main support plate rotates along a first direction, the elastic piece stretches to enable the main support plate to be far away from the shaft seat in the process of switching the rotating shaft assembly from the unfolded state to the first folded state, and when the main support plate rotates along a second direction, the elastic piece contracts to enable the main support plate to be close to the shaft seat in the process of switching the rotating shaft assembly from the unfolded state to the second folded state. In the process of folding in and folding out of the electronic equipment, the supporting plate component realizes the adjustment of the width through the elastic piece so as to be matched with the arc length of the flexible display screen.

Description

Rotating shaft assembly and electronic equipment

Technical Field

The present disclosure relates to electronic devices, and particularly to a rotating shaft assembly and an electronic device.

Background

With the development of science and technology, foldable electronic devices have been widely used by users. The foldable electronic equipment has two use states of unfolding and folding, and the current foldable electronic equipment can only realize inward folding or outward folding, so that the use experience of a user is affected.

Disclosure of Invention

The application aims to provide a rotating shaft assembly and electronic equipment, so that the rotating shaft assembly can be folded inwards and outwards, the width of the rotating shaft assembly can be adjusted, and the flexible display screen is prevented from being extruded or stretched.

An embodiment of the present application provides a hinge assembly including a shaft base and a support plate assembly for supporting a flexible display screen of an electronic device, the support plate assembly including at least a main support plate disposed on both sides of the shaft base in a width direction of the hinge assembly, wherein the hinge assembly further includes an elastic member disposed between the main support plate and the shaft base in the width direction of the hinge assembly, the main support plate being rotatably connected to the shaft base by the elastic member, the elastic member being elongated to move the main support plate away from the shaft base when the main support plate is rotated in a first direction relative to the shaft base to move the hinge assembly from a unfolded state to a first folded state, and contracted to move the main support plate closer to the shaft base when the main support plate is rotated in a second direction relative to the shaft base to move the hinge assembly from the unfolded state to the second folded state, the first direction being opposite to the second direction.

When the electronic equipment is switched to the first folding state from the unfolding state, the elastic piece can be stretched along with the rotation of the main supporting plate, and the length of the elastic piece is increased, so that the width of the rotating shaft assembly in the first folding state is increased, the arc length of the bending area of the flexible display screen is convenient to adapt to, the flexible display screen cannot be extruded at the moment, the risk that the flexible display screen is cracked in the folding process is reduced, and the reliability of the electronic equipment is improved. When the electronic equipment is switched from the unfolding state to the second folding state, the elastic piece can be compressed along with the rotation of the main support plate, and the length of the elastic piece is reduced, so that the width of the rotating shaft assembly in the second folding state is reduced, the rotating shaft assembly can be contained in the bending area of the flexible display screen, the bending area of the flexible display screen cannot be pulled, and the risk that the flexible display screen is broken in the folding process is also reduced, so that the reliability of the electronic equipment is improved.

In one possible implementation mode, when the rotating shaft assembly is in the first folding state, a first space for accommodating a bending area of a flexible display screen is formed between the main support plate and the shaft seat, when the rotating shaft assembly is in the second folding state, a second space is formed between the main support plate and the shaft seat, the bending area of the flexible display screen is used for being coated on one side, away from the second space, of the main support plate and the shaft seat, and the arc length of the first space is larger than that of the second space.

The rotating shaft assembly in the first folding state is provided with a first space, so that the rotating shaft assembly provides enough accommodating space for the bending area of the flexible display screen, and the possibility that the rotating shaft assembly extrudes the bending area of the flexible display screen is reduced. The rotating shaft assembly in the second folding state is provided with a second space, and the arc length of the second space is smaller than that of the first space, so that the rotating shaft assembly cannot cause pulling to a bending area of the flexible display screen, and the risk of cracking of the flexible display screen in the folding process is reduced.

In one possible implementation, the elastic piece comprises a hollowed-out part, and the hollowed-out part penetrates through the elastic piece along the thickness direction of the elastic piece.

The hollowed-out part provides deformation space for the elastic piece so as to increase the deformation quantity of the elastic piece and realize the change of the width of the rotating shaft assembly.

In one possible implementation manner, the elastic piece comprises a first elastic part, a second elastic part and a third elastic part, the hollowed-out part is arranged on the first elastic part, the first elastic part is connected with the shaft seat through the second elastic part, and the first elastic part is connected with the main support plate through the third elastic part.

The second elastic part and the third elastic part can have a straight-line-shaped structure so as to realize stable and reliable connection between the first elastic part and the shaft seat as well as between the first elastic part and the main support plate.

In one possible embodiment, a plurality of elastic members are connected between the main support plate and the shaft seat along the length direction of the rotating shaft assembly.

The plurality of elastic pieces are arranged, so that the stability of connection between the main support plate and the shaft seat can be improved.

In one possible implementation manner, the support plate assembly further comprises a secondary support plate arranged between the main support plate and the shaft seat along the width direction of the rotating shaft assembly, the elastic pieces are arranged on two sides of the secondary support plate along the width direction of the rotating shaft assembly, one end of the secondary support plate is rotatably connected with the main support plate on the same side through the elastic pieces, and the other end of the secondary support plate is rotatably connected with the shaft seat through the elastic pieces.

Through setting up the auxiliary stay board, improved the supporting effect of pivot subassembly to flexible display, reduced the flexible display to the possibility that is close to one side of pivot subassembly and subsides, be favorable to prolonging flexible display's life to stability and the reliability that flexible display used have been improved. Meanwhile, the number of elastic pieces in the width direction of the rotating shaft assembly is increased. When the number of the elastic pieces is increased, the whole elongation and compression of the elastic pieces are increased, that is, the variation of the width dimension of the rotating shaft assembly is increased, so that the use requirement of the flexible display screen is met.

In one possible implementation manner, the rotating shaft assembly further comprises supports arranged on two sides of the shaft seat in the width direction of the rotating shaft assembly, and push rod assemblies arranged on two sides of the shaft seat in the width direction of the rotating shaft assembly, wherein each push rod assembly comprises a first push rod, one end of each first push rod is rotatably connected with the corresponding support on the same side, the other end of each first push rod is rotatably connected with the corresponding shaft seat, and each first push rod can also slide relative to the corresponding shaft seat along the length direction of the rotating shaft assembly.

When the electronic equipment is in the first folding state and the second folding state, the first push rod can play a role in supporting and limiting the support, and because the main support plate is connected with the support, the main support plate is limited and restrained, the position of the main support plate in the first folding state and the position of the main support plate in the second folding state are determined, the shape of the rotating shaft assembly is matched with the shape of the flexible display screen conveniently, the possibility that the flexible display screen is extruded or stretched is reduced, and meanwhile, under the action of the first push rod, the main support plate plays a reliable supporting role on the flexible display screen, so that the main support plate is maintained at the current position, and the stability of the flexible display screen is improved.

In one possible implementation mode, the shaft seat is provided with a guide rail extending along the length direction of the rotating shaft assembly and a moving part connected with the guide rail, one end of the first push rod is rotatably connected with the moving part, and when the rotating shaft assembly is switched among the first folding state, the unfolding state and the second folding state, the moving part can move along the guide rail to change an included angle between the first push rod and the width direction of the rotating shaft assembly.

Through setting up the guide rail, improved the stability that removes the piece in the length direction of pivot subassembly to improved the stability that first push rod removed, and improved the motion precision of pivot subassembly.

In one possible implementation manner, when the rotating shaft assembly is in the first folded state, a first included angle is formed between the first push rod and the width direction of the rotating shaft assembly, and when the rotating shaft assembly is in the second folded state, a second included angle is formed between the first push rod and the width direction of the rotating shaft assembly, and the first included angle is smaller than the second included angle.

When the electronic equipment is switched from the unfolding state to the first folding state, the first push rod can move along the length direction of the rotating shaft assembly, so that an included angle between the first push rod and the width direction of the rotating shaft assembly is reduced, the projection length of the first push rod in the width direction of the rotating shaft assembly is increased, the support can move in the direction away from the shaft seat, the width of the rotating shaft assembly is increased, and the arc length of the flexible display screen in the first folding state is matched with that of the flexible display screen. In contrast, when electronic equipment switches to the in-process of second folding state from the expansion state, first push rod can be followed the length direction of pivot subassembly and moved to make the contained angle between the width direction of first push rod and pivot subassembly grow, make the length of the projection of first push rod in the width direction of pivot subassembly diminish, thereby make first support can be moved to the direction that is close to the axle bed, make the width of pivot subassembly reduce, and then with the arc length phase-match of flexible display screen under the second folding state.

In one possible implementation, two ends of the first push rod are respectively provided with a first spherical part and a second spherical part, the first spherical part is rotatably connected with the bracket, and the second spherical part is rotatably connected with the moving piece.

The first push rod can smoothly rotate between the bracket and the shaft seat through the arrangement of the first spherical part and the second spherical part.

In one possible implementation, the support plate assembly further comprises a secondary support plate arranged between the main support plate and the shaft seat along the width direction of the rotating shaft assembly, the push rod assembly further comprises a second push rod, one end of the second push rod is rotatably connected with the secondary support plate on the same side, and the other end of the second push rod is rotatably connected with the shaft seat and can slide relative to the shaft seat along the length direction of the rotating shaft assembly.

The second push rod plays a role in supporting and limiting the auxiliary supporting plate, positions of the auxiliary supporting plate in the first folding state and the second folding state are determined, and the shape of the rotating shaft assembly is matched with the shape of the flexible display screen. Meanwhile, under the supporting action of the second push rod, the auxiliary supporting plate is maintained at the current position, so that the flexible display screen is reliably supported, and the stability of the flexible display screen is improved.

In one possible implementation, the first push rod is used for supporting the bracket on the same side and limiting the main support plate connected with the bracket to the position where the first folding state is located or the position where the second folding state is located through the bracket, the second push rod is used for supporting the auxiliary support plate on the same side and limiting the auxiliary support plate to the position where the first folding state is located or the position where the second folding state is located, and in the first folding state, the main support plate, the auxiliary support plate and the shaft seat enclose the first space, and in the second folding state, the main support plate, the auxiliary support plate and the shaft seat enclose the second space.

The second push rod can provide supporting force for the auxiliary supporting plate in a direction away from the flexible display screen, and enables the auxiliary supporting plate to be stably kept at a preset position so as to provide enough accommodating space for a bending area of the flexible display screen. The shape of the space surrounded by the supporting plate, the auxiliary supporting plate and the shaft seat is matched with the shape of the bending area of the flexible display screen, so that the flexible display screen is prevented from being extruded or stretched. Meanwhile, as the form of each supporting plate is matched with the form of the flexible display screen, the reliability of the supporting effect of the supporting plates on the flexible display screen is improved, the possibility that the flexible display screen collapses downwards when being pressed is reduced, and the operation experience of a user is further improved.

In one possible implementation mode, the shaft seat is provided with a matching piece, the matching piece is fixedly connected with the moving piece, a matching groove is formed in the matching piece along the length direction of the rotating shaft assembly, one end of the second push rod is rotatably connected in the matching groove, and when the rotating shaft assembly is switched among the first folding state, the unfolding state and the second folding state, the second push rod can move along the matching groove so as to change an included angle between the second push rod and the width direction of the rotating shaft assembly.

The first push rod is connected with the second push rod through the moving part and the matching part, and when the first push rod moves along the length direction of the rotating shaft assembly, the second push rod also moves along with the moving so as to improve the movement precision of the whole rotating shaft assembly, thereby improving the reliability of the rotating shaft assembly.

In one possible implementation manner, when the rotating shaft assembly is in the first folded state, a third included angle is formed between the second push rod and the width direction of the rotating shaft assembly, when the rotating shaft assembly is in the second folded state, a fourth included angle is formed between the second push rod and the width direction of the rotating shaft assembly, and the third included angle is smaller than the fourth included angle.

When the electronic equipment is switched from the unfolding state to the first folding state, the second push rod can move along the length direction of the rotating shaft assembly, so that an included angle between the second push rod and the width direction of the rotating shaft assembly is reduced, the projection length of the second push rod in the width direction of the rotating shaft assembly is increased, the first auxiliary supporting plate can move in the direction away from the shaft seat, the width of the rotating shaft assembly is increased, and the arc length of the flexible display screen in the first folding state is matched with that of the flexible display screen. When the electronic equipment is switched from the unfolding state to the second folding state, the second push rod can also move along the length direction of the rotating shaft assembly, so that the included angle between the second push rod and the width direction of the rotating shaft assembly is increased, the projection length of the second push rod in the width direction of the rotating shaft assembly is reduced, the first auxiliary supporting plate can move towards the direction close to the shaft seat, and even if the width of the rotating shaft assembly is reduced, the first auxiliary supporting plate is matched with the arc length of the flexible display screen in the second folding state.

In one possible embodiment, the second push rod has a third spherical portion and a fourth spherical portion at both ends thereof, respectively, the third spherical portion is rotatably connected with the sub-support plate, the fourth spherical portion is rotatably disposed in the fitting groove, and the fourth spherical portion is movable along the fitting groove.

The second push rod can smoothly rotate between the auxiliary supporting plate and the shaft seat.

In one possible embodiment, the rotating shaft assembly further comprises brackets arranged at two sides of the shaft seat along the width direction of the rotating shaft assembly, the brackets are rotatably connected with the shaft seat, and the brackets are rotatably connected with the main supporting plates at the same side through at least one flexible piece.

The rotatable connection between the support and the main support plate is realized by arranging the flexible piece, and the stability and the reliability of the connection between the support and the main support plate are improved.

In one possible embodiment, a plurality of flexible members are arranged between the bracket and the main support plate on the same side in the length direction of the rotating shaft assembly.

By the aid of the plurality of flexible pieces, stability and reliability of connection between the main support plate and the support are improved.

In one possible implementation manner, the support comprises a first body part and a second body part, the flexible piece is accommodated in the first body part, the second body part is connected with the first body part, the thickness of the second body part gradually decreases in a direction away from the first body part, and the main support plate can rotate to a side close to the support when the rotating shaft assembly is switched between the first folding state and the second folding state until the main support plate is abutted against the second body part.

Under the first folding state, the main support plate is abutted with the support, so that the main support plate is obliquely arranged to one side far away from the flexible display screen, and accordingly the shape of a bending area of the flexible display screen is matched with that of the main support plate, the supporting effect of the main support plate on the flexible display screen is improved, meanwhile, an accommodating space is provided for the bending area of the flexible display screen, the possibility that the main support plate extrudes the flexible display screen is reduced, and normal use of the flexible display screen is guaranteed. When the electronic equipment is in the second folding state, the rotating shaft assembly is accommodated in the bending area of the flexible display screen, and the main support plate support is abutted at the moment, so that the main support plate is obliquely arranged to the side far away from the flexible display screen, and the shape of the bending area of the flexible display screen is matched with the shape of the bending area of the flexible display screen, so that the supporting effect on the flexible display screen is improved, and the possibility that the flexible display screen is pulled is reduced.

In one possible implementation mode, the rotating shaft assembly further comprises supports arranged on two sides of the shaft seat in the width direction of the rotating shaft assembly, the supports are rotatably connected with the shaft seat, the supports are connected with a swing arm group, the shaft seat is provided with a sliding assembly, the swing arm group is rotatably connected with the sliding assembly, and when the swing arm group rotates relative to the sliding assembly, the sliding assembly can slide relative to the shaft seat.

Through set up on the axle bed can be for the gliding slip subassembly of axle bed, be favorable to providing sufficient sliding travel for swing arm group to make each swing arm group all can inwards rotate and outwards rotate, that is to say, through setting up slip subassembly, increased the rotation angle of each swing arm, thereby realized electronic equipment's inwards folding and outwards folding.

On the other hand, the distance between swing arm and the axle bed can be adjusted to the slip subassembly, for example, when electronic equipment switches to the in-process of first folding state from the expansion state, the slip subassembly can stretch out to the direction of keeping away from the axle bed, has increased the distance between swing arm and the axle bed, has increased the holistic width of pivot subassembly promptly to the flexible display screen looks adaptation under pivot subassembly and the first folding state reduces the possibility that pivot subassembly extruded flexible display screen under the first folding state.

In one possible implementation manner, the sliding assembly at least comprises a first sliding piece, the first sliding piece is provided with a first sliding groove, the swing arm group comprises a connecting part, the connecting part is slidably arranged in the first sliding groove, the shaft seat is provided with an installation space, the first sliding piece is positioned in the installation space, and in the process of rotating the bracket along the first direction, the first sliding piece can extend out of the installation space.

When the swing arm group rotates relative to the shaft seat along the first direction, the first sliding piece can extend outwards from the inside of the installation space, the distance between the connecting portion and the shaft seat along the width direction of the rotating shaft assembly comprises the sliding distance between the connecting portion and the first sliding piece and the distance between the first sliding piece and the outside of the installation space of the shaft seat, so that the distance between the connecting portion and the shaft seat along the width direction of the rotating shaft assembly can be increased, the distance between the connecting portion and the shaft seat along the width direction of the rotating shaft assembly is not required to be increased by increasing the sliding distance between the connecting portion and the first sliding piece, the connecting portion and the first sliding groove are always in a contact state, the first main swing arm which is caused by the separation of the connecting portion and the first sliding groove cannot continue to rotate, and the electronic equipment can be switched to a first folding state from a unfolding state.

In one possible embodiment, a first guide groove is provided in the installation space, and the first slider has a first guide protrusion that is located in the first guide groove and is slidable along the first guide groove.

Through the cooperation of first guide protrusion and first guide slot, play the guide effect to the removal of first slider to improve first slider gliding stability and reliability. The first guide groove can be an arc groove, and the first guide protrusion can be an arc protrusion, so that the first sliding piece can slide along an arc track in the installation space.

In one possible implementation mode, the swing arm group comprises a main body part, one end of the main body part is connected with the connecting part, the other end of the main body part is connected with the bracket, the first sliding piece is provided with a first notch, the installation space is provided with a second notch communicated with the first notch, and the first notch and the second notch are used for avoiding the main body part.

The first notch and the second notch can avoid the main body part of the swing arm group, so that the possibility of interference between the swing arm group and the first sliding piece and the possibility of interference between the swing arm group and the shaft seat are reduced, and smooth rotation of the swing arm group is realized.

In one possible implementation manner, the sliding assembly further comprises a second sliding piece, wherein the second sliding piece is slidably arranged in the installation space, a second sliding groove is formed in the second sliding piece, the first sliding piece is slidably arranged in the first sliding groove, and the second sliding piece can extend out of the installation space when the bracket rotates along the first direction.

The first sliding piece and the second sliding piece can form a telescopic nested structure, when the electronic equipment is switched from the unfolding state to the first folding state, the second sliding piece can extend out of the installation space, and the first sliding piece can extend out of the second sliding piece, so that the sliding stroke of the swing arm is further increased, and the rotation requirement of the swing arm is met. Meanwhile, when the first sliding piece and the second sliding piece are in the extending state, the distance between the swing arm and the shaft seat is further increased, and therefore the whole width of the rotating shaft assembly is increased.

In one possible implementation manner, the support rotates along the second direction during the process of switching the rotating shaft assembly from the unfolding state to the second folding state, the connecting part slides from the first end of the first sliding groove to the direction close to the second end of the first sliding groove, the support rotates along the first direction during the process of switching the rotating shaft assembly from the unfolding state to the first folding state, the connecting part slides from the first end of the first sliding groove to the direction far away from the second end of the first sliding groove, the first sliding piece slides along the second sliding groove to the side far away from the shaft seat, and the second sliding piece can extend out of the installation space.

The swing arm group is rotated in the first direction and the second direction through the design, so that the electronic equipment can be folded inwards and outwards simultaneously.

In one possible implementation mode, the rotating shaft assembly comprises a shaft seat and a decoration plate assembly, wherein the shaft seat is rotatably connected with a bracket along two sides of the rotating shaft assembly in the width direction, the decoration plate assembly comprises a first decoration plate, a second decoration plate and a third decoration plate, the third decoration plate is connected with the shaft seat along the thickness direction of the rotating shaft assembly, the first decoration plate and the second decoration plate are respectively positioned on two sides of the third decoration plate along the width direction of the rotating shaft assembly and are connected with the corresponding bracket along the thickness direction of the rotating shaft assembly, and the first decoration plate and the third decoration plate and the second decoration plate and the third decoration plate are rotatably connected through elastic connecting pieces.

The elastic connecting piece connects the first decorative plate, the second decorative plate and the third decorative plate into a whole, that is, the three decorative plates adopt an integrated design, and the first decorative plate, the second decorative plate and the third decorative plate do not need to be mutually positioned in the assembly process of the first decorative plate, the second decorative plate and the third decorative plate, so that the assembly difficulty of the rotating shaft assembly is reduced, the assembly step of the rotating shaft assembly is simplified, the production cost of the rotating shaft assembly is reduced, and meanwhile, the relative position precision among the first decorative plate, the second decorative plate and the third decorative plate is improved, so that the assembly precision of the rotating shaft assembly is improved.

In one possible embodiment, the elastic connection comprises at least one elastic unit, which has a hollowed-out area.

The hollowed-out area provides deformation space for the formation of the elastic connecting piece so as to increase the deformation quantity of the elastic connecting piece.

In one possible implementation manner, the elastic connecting piece comprises a first elastic layer and a second elastic layer along the thickness direction of the elastic connecting piece, wherein the first elastic layer is connected with the second elastic layer, the first elastic layer and the second elastic layer comprise at least one elastic unit, and the hollowed-out area of the first elastic layer and the hollowed-out area of the second elastic layer are arranged in a staggered mode.

Through dividing into first elastic layer and second elastic layer two-layer structure with the elastic connection spare for two elastic layers can shelter from the fretwork region of counterparty respectively, make the elastic connection spare on not having the inside gap with the pivot subassembly outside of intercommunication pivot subassembly, with the protection effect of improvement elastic connection spare to pivot subassembly inner structure, and improve the holistic fineness of pivot subassembly. On the other hand, the hollow areas of the two elastic layers can still provide elastic deformation space for the corresponding elastic units by the aid of the design, and the integral elastic deformation of the elastic connecting piece is guaranteed.

In one possible implementation manner, the first decorative plate comprises a first plate body and a second plate body, the second decorative plate comprises a third plate body and a fourth plate body, the third decorative plate comprises a fifth plate body and a sixth plate body, the first plate body, the third plate body and the fifth plate body are connected through a first elastic layer along the width direction of the rotating shaft assembly, the second plate body, the fourth plate body and the sixth plate body are connected through a second elastic layer, and the first plate body, the second plate body, the third plate body, the fourth plate body, the fifth plate body, the sixth plate body, the first elastic layer and the second elastic layer are all connected through glue layers along the thickness direction of the rotating shaft assembly.

Each decorative board all has the multilayer structure including the glue film, and the glue film can provide certain intensity for the decorative board after the solidification to improved the stability of decorative board structure, in order to do benefit to the life of extension decorative board, improved holistic stability and the reliability of pivot subassembly.

In one possible embodiment, the elastic unit includes two first elastic segments extending along a length direction thereof and two second elastic segments extending along a width direction thereof, and the first elastic segments and the second elastic segments are connected to enclose the hollowed-out area.

The elastic unit is provided with a 'mouth' -shaped structure, which is beneficial to improving the stability and reliability of the structure of the elastic connecting piece and is beneficial to the elastic deformation of the elastic connecting piece.

In one possible implementation manner, the elastic connecting piece comprises a plurality of elastic units, the elastic units are arranged continuously along the length direction of the rotating shaft assembly, the elastic units are arranged at intervals along the width direction of the rotating shaft assembly, and adjacent elastic units are connected through a third elastic section.

Along the width direction of the rotating shaft assembly, the interval between adjacent elastic units provides space for deformation of the elastic units in the width direction of the elastic units, so that deformation amount of each elastic unit is increased, and then the elastic connecting piece can stretch or compress along with the change of the width of the rotating shaft assembly, so that the electronic equipment can be switched among an unfolding state, a first folding state and a second folding state.

The second aspect of the embodiment of the application provides a rotating shaft assembly, which comprises a shaft seat and a decoration plate assembly, wherein the shaft seat is rotatably connected with a bracket along two sides of the rotating shaft assembly in the width direction, the decoration plate assembly comprises a first decoration plate, a second decoration plate and a third decoration plate, the third decoration plate is connected with the shaft seat along the thickness direction of the rotating shaft assembly, the first decoration plate and the second decoration plate are respectively positioned at two sides of the third decoration plate along the width direction of the rotating shaft assembly and are connected with the corresponding bracket along the thickness direction of the rotating shaft assembly, and the first decoration plate and the third decoration plate and the second decoration plate and the third decoration plate are rotatably connected through elastic connecting pieces.

The third aspect of the embodiment of the application provides electronic equipment, which comprises a rotating shaft assembly, a first shell, a second shell and a flexible display screen, wherein the rotating shaft assembly is any one of the rotating shaft assemblies, the first shell and the second shell are respectively connected to two sides of the rotating shaft assembly in the width direction, the flexible display screen covers one side of the rotating shaft assembly, one side of the first shell and one side of the second shell in the thickness direction and is connected with the first shell and the second shell, when the electronic equipment is in a first folding state, the flexible display screen is accommodated between the first shell and the second shell, and when the electronic equipment is in a second folding state, the flexible display screen is exposed outside the first shell and the second shell.

The electronic equipment is provided with the rotating shaft assembly, so that the electronic equipment has the functions of folding outwards and folding inwards, and the flexible display screen is prevented from being extruded or pulled, the reliability of the flexible display screen is improved, and the service life of the flexible display screen is prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

Fig. 1 is a schematic view of an electronic device in an unfolded state according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an electronic device in a first folded state according to an embodiment of the application;

Fig. 3 is a schematic diagram of an electronic device in a second folded state according to an embodiment of the application;

FIG. 4 is a schematic diagram illustrating an electronic device switching from an unfolded state to a first folded state and a second folded state according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a rotor assembly according to an embodiment of the present application;

FIG. 6 is an exploded view of a rotor assembly according to one embodiment of the present application;

FIG. 7 is an enlarged view of section I of FIG. 6;

FIG. 8 is a partially exploded view of a rotor assembly according to one embodiment of the present application;

FIG. 9 is a partial cross-sectional view of a rotor assembly according to one embodiment of the application;

FIG. 10 is a schematic view of a rotor assembly according to another embodiment of the present application;

FIG. 11 is an enlarged view of section II of FIG. 10;

FIG. 12 is a schematic view of a rotor assembly according to yet another embodiment of the present application;

FIG. 13 is a schematic view of a first main support plate coupled to a first bracket according to an embodiment of the present application;

FIG. 14 is a schematic view of a bending region of a flexible display screen and a first support, a first main support plate, a second support, and a second main support plate of an electronic device in a first folded state according to an embodiment of the present application;

FIG. 15 is a partial schematic view of a rotor assembly according to yet another embodiment of the present application;

FIG. 16 is a schematic view of a flexible display screen and respective support plates in a first folded state according to an embodiment of the application;

FIG. 17 is a partial schematic view of a related art spindle assembly;

FIG. 18 is a schematic view of a first trim panel, a second trim panel, and a third trim panel according to the related art;

FIG. 19 is a schematic view of a rotor assembly according to yet another embodiment of the present application;

FIG. 20 is a schematic view of an elastic connector according to an embodiment of the application;

FIG. 21 is a partial schematic view of an elastic connector according to another embodiment of the present application;

Fig. 22 is a partial schematic view of a rotor assembly according to yet another embodiment of the present application.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In the description of the present application, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance unless otherwise expressly specified or stated, the term "plurality" is intended to be broadly construed, such as "connected" or "fixed" in either a fixed or removable or integral or electrical connection, or may be directly or indirectly connected via an intervening medium. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, it should be understood that the terms "upper", "lower", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

With the development of science and technology, foldable electronic devices have been widely used by users. The foldable electronic equipment has two use states of unfolding and folding, when the current foldable electronic equipment is switched between the unfolding state and the folding state, the foldable electronic equipment can only be folded unidirectionally along one direction, namely the foldable electronic equipment can only be folded inwards or folded outwards, so that the use experience of a user is affected.

In view of the above problems, the embodiment of the present application provides an electronic device, which may be any device having a foldable function, such as a mobile phone, a tablet computer, a notebook computer, a wearable device, etc., and the embodiment of the present application does not particularly limit a specific form of the electronic device.

The following specifically describes an electronic device as an example of a foldable mobile phone.

Referring to fig. 1, fig. 1 is a schematic diagram of an electronic device 100 in an unfolded state according to an embodiment of the application. The electronic device 100 includes a hinge assembly 10, a flexible display 20, a first housing 30, and a second housing 40. The first casing 30 and the second casing 40 are respectively connected to two sides of the rotating shaft assembly 10, and the first casing 30 can rotate relative to the second casing 40 through the rotating shaft assembly 10, so as to realize unfolding and folding of the electronic device 100. The flexible display 20 is located at one side of the hinge assembly 10 and is connected to the first housing 30 and the second housing 40, respectively. The flexible display 20 may be unfolded or folded along with the rotation of the first housing 30 and the second housing 40, for example, when the electronic device 100 is in an unfolded state, the flexible display 20 is also in an unfolded state, specifically, when the electronic device 100 is in an unfolded state, the first housing 30 and the second housing 40 are located in a substantially same plane, and at this time, the flexible display 20 may be unfolded into a substantially same plane, so that the flexible display 20 has a larger area, so as to provide a clearer picture for a user, and meanwhile, facilitate clicking, sliding or writing actions for the user, so as to enhance the experience of the user.

The flexible display 20 may be, but is not limited to, an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (OLED) or active-matrix organic light-emitting diode (AMOLED) display, a mini-led (mini organic light-emitting diode) display, a micro-led (micro organic lightemitting diode) display, a micro-organic light-emitting diode (micro organic light-emitting diode) display, etc.

The first housing 30 and the second housing 40 may be a middle frame structure of the electronic device 100, for example, the first housing 30 may be a main middle frame of the electronic device 100, and the second housing 40 may be a sub middle frame of the electronic device 100. The first and second cases 30 and 40 are used to mount components (not shown in the drawings) of the electronic device 100 such as a battery, a circuit board, a camera, a headset, an earpiece, a key, a battery, and the like.

The first housing 30 and the second housing 40 may be folded along a first direction (i.e., a direction a shown in fig. 1), which may be understood as a direction in which the electronic device 100 is folded inward, so that the electronic device 100 is switched from the unfolded state to the first folded state (the first folded state is a state after the electronic device 100 is folded inward). The first direction is opposite to the second direction.

Fig. 2 is a schematic diagram of the electronic device 100 in a first folded state according to an embodiment of the application. In the first folded state, the flexible display 20 is located in a space enclosed by the folded first and second housings 30 and 40, and at this time, the flexible display 20 is not exposed, and a user cannot operate the flexible display 20. The electronic device 100 in the first folded state has a smaller size and is convenient to store and carry.

The first housing 30 and the second housing 40 may also be folded along a second direction (i.e., a direction B shown in fig. 1), where the second direction may be understood as a direction in which the electronic device 100 is folded outward, so that the electronic device 100 is switched from the unfolded state to the second folded state (the second folded state is a state after the electronic device 100 is folded outward).

Fig. 3 is a schematic diagram of the electronic device 100 in a second folded state according to an embodiment of the application. In the second folded state, the flexible display 20 is exposed outside the first and second cases 30 and 40, i.e., the flexible display 20 may be regarded as an outer surface of the electronic device 100 for a user to view or operate. The electronic device 100 of the electronic device 100 in the second folded state is small in size and convenient to store and carry.

Fig. 4 is a schematic diagram of the electronic device 100 switched from the unfolded state to the first folded state and the second folded state according to an embodiment of the application. The width of the flexible display 20 is L1, the width of the structural member formed by connecting the first housing 30, the rotating shaft assembly 10 and the second housing 40 is L2, when the electronic device 100 is in the unfolded state, the width L1 of the flexible display 20 is equal to the width L2 of the structural member, and at this time, the flexible display 20 is not subjected to the extrusion or stretching of the structural member.

When the flexible display 20 is folded along the first direction (direction a) and is switched to the first folded state, the flexible display 20 is received inside the structural member, i.e. in the space enclosed by the first housing 30, the second housing 40 and the rotating shaft assembly 10. If the width of the flexible display 20 in the first folded state is L1 and the width of the structural member L2 are equal, the first housing 30, the second housing 40, and the hinge assembly 10 cannot provide enough space to accommodate the flexible display 20, so that the flexible display 20 is squeezed, and the flexible display 20 is at risk of fracture.

With continued reference to fig. 4, after the flexible display 20 is folded along the second direction (direction B) and is switched to the second folded state, the flexible display 20 is exposed outside the structural member, i.e. the first housing 30, the second housing 40 and the rotating shaft assembly 10 are accommodated inside the flexible display 20. If the width of the flexible display 20 in the second folded state is L1 and the width of the structural member L2 are equal, the flexible display 20 cannot provide enough space to accommodate the first housing 30, the second housing 40 and the rotating shaft assembly 10, so that the flexible display 20 is pulled, and the flexible display 20 is also at risk of being broken.

To sum up, in order to enable the electronic device 100 to have both the functions of folding outwards and folding inwards, and to ensure that the flexible display 20 is not squeezed or pulled, the dimensions of the structural members connected by the first housing 30, the rotating shaft assembly 10, and the second housing 40 need to be matched with the dimensions of the flexible display 20. That is, in order for the flexible display 20 not to be pressed by the structural members, the width L2 of the structural members should be greater than the width L1 of the flexible display 20 in the first folded state. In order to prevent the flexible display 20 from being stretched by the structural members, the width L2 of the structural members should be smaller than the width L1 of the flexible display 20 in the second folded state.

Based on the above, the embodiment of the application provides the rotating shaft assembly, and the rotating shaft assembly in the embodiment of the application can realize outward folding and inward folding of the electronic equipment, and meanwhile, the rotating shaft assembly can adjust the width of the rotating shaft assembly in the folding and unfolding processes of the electronic equipment, so that the width of a structural member consisting of the rotating shaft assembly, the first shell and the second shell can be adjusted, and the size of the structural member can be matched with that of the flexible display screen conveniently, and the flexible display screen can not be extruded or stretched.

The structure of the spindle assembly according to the embodiment of the present application will be described in detail with reference to the accompanying drawings.

Fig. 5 is a schematic diagram of the rotating shaft assembly 10 according to an embodiment of the application. The rotating shaft assembly 10 comprises a shaft seat 11 and two brackets which are respectively positioned on the shaft seat 11 and are respectively a first bracket 121 and a second bracket 122 along the width direction Y of the rotating shaft assembly 10. The shaft seat 11 is respectively provided with a swing arm group along the width direction Y of the rotating shaft assembly 10, and the two swing arm groups are respectively a first swing arm group 13 and a second swing arm group 14. The first bracket 121 is connected to the first housing 30 (as shown in fig. 1), and the first bracket 121 is further rotatably connected to the shaft seat 11 through the first swing arm set 13. The second bracket 122 is connected to the second housing 40 (as shown in fig. 1), and the second bracket 122 is further rotatably connected to the shaft seat 11 through the second swing arm set 14. The first housing 30 may drive the first bracket 121 to rotate relative to the shaft seat 11, and the second housing 40 may drive the second bracket 122 to rotate relative to the shaft seat 11, so as to realize the unfolding and folding of the electronic device 100.

The first swing arm group 13 includes a first main swing arm 131 and a first sub swing arm 132, and the second swing arm group 14 includes a second main swing arm 141 and a second sub swing arm 142. The shaft seat 11 is provided with at least four sliding assemblies 15, and the first main swing arm 131, the first auxiliary swing arm 132, the second main swing arm 141 and the second auxiliary swing arm 142 can be connected with the shaft seat 11 through the respective sliding assemblies 15.

The length direction, width direction and thickness direction of the rotary shaft assembly referred to herein are based on the viewing angle of the rotary shaft assembly in the unfolded state. Specifically, referring to fig. 5, when the rotating shaft assembly 10 is in the unfolded state, the extending direction of the shaft seat 11 is the length direction X of the rotating shaft assembly 10, the arrangement direction of the first bracket 121 and the second bracket 122 is the width direction Y of the rotating shaft assembly 10, and the direction perpendicular to the length direction X and the width direction Y is the thickness direction Z of the rotating shaft assembly 10.

The structure of the sliding assembly will be described below by taking the sliding assembly between the first main swing arm and the shaft seat as an example.

As shown in fig. 6 and 7, fig. 6 is an exploded view of the rotating shaft assembly 10 according to an embodiment of the present application, and fig. 7 is an enlarged view of the portion I in fig. 6. The slide assembly 15 may include a first slide 151, the first slide 151 being movably connected with the first main swing arm 131. The first sliding piece 151 is provided with a first sliding groove 1511, the first main swing arm 131 is provided with a connecting portion 1311, the connecting portion 1311 can extend into the first sliding groove 1511, and when the first main swing arm 131 rotates relative to the shaft seat 11, the connecting portion 1311 can slide in the first sliding groove 1511. Specifically, when the first main swing arm 131 rotates in the first direction (a direction), the connection portion 1311 may slide in the first slide groove 1511 in a direction away from the shaft seat 11, and when the first main swing arm 131 rotates in the second direction (B direction), the connection portion 1311 may slide in the first slide groove 1511 in a direction toward the shaft seat 11.

The first sliding groove 1511 may be an arc-shaped groove, that is, the bottom surfaces of the first sliding groove 1511 are all arc-shaped surfaces. The connection portion 1311 may have a certain curvature, that is, the connection portion 1311 may have a structure similar to a "C" shape. The radian of the connecting portion 1311 corresponds to the radian of the first chute 1511, so that the connecting portion 1311 can slide along the arc track in the first chute 1511, thereby improving the stability and fluency of the rotation of the first main swing arm 131.

The first sliding groove 1511 includes a first end 1511a and a second end 1511b along the width direction Y of the spindle assembly 10, where the first end 1511a and the second end 1511b may each be provided with a first limiting structure (e.g., a limiting post, not shown in the drawings) that may abut against the connecting portion 1311 to limit a sliding range of the connecting portion 1311 in the first sliding groove 1511, so as to avoid the connecting portion 1311 from being separated from the first sliding groove 1511, i.e., avoid the first main swing arm 131 from being disconnected from the first sliding member 151.

The shaft seat 11 is provided with a mounting space 111, and the first slider 151 is mounted in the mounting space 111 and can protrude from the mounting space 111, that is, the first slider 151 is slidably connected with the shaft seat 11. Specifically, the installation space 111 has a first guide groove 1111, and the first slider 151 has a first guide protrusion 1512, and the first guide protrusion 1512 may extend into the first guide groove 1111 and move along the first guide groove 1111. Wherein, the first guide groove 1111 may be an arc groove, and the first guide protrusion 1512 may be an arc protrusion, so that the first slider 151 may slide along an arc track within the installation space 111.

Along the length direction X of the spindle assembly 10, the side walls on both sides of the installation space 111 are provided with first guide grooves 1111, correspondingly, both ends of the first slider 151 are provided with first guide protrusions 1512, and the two first guide protrusions 1512 are respectively matched with the corresponding first guide grooves 1111, so as to improve the sliding stability and reliability of the first slider 151.

The first guide groove 1111 includes a third end 1111a and a fourth end 1111b along the width direction of the rotating shaft assembly 10, and the third end 1111a and the fourth end 1111b may be provided with a second limiting structure (e.g., a limiting post, etc., not shown in the drawings) that may abut against the first guide protrusion 1512 of the first slider 151 to limit a sliding range of the first guide protrusion 1512 in the first guide groove 1111, so as to prevent the first guide protrusion 1512 from being separated from the first guide groove 1111, i.e., prevent the first slider 151 from being separated from the installation space 111.

As can be seen from the above, the first main swing arm 131 is slidably connected with the first arc-shaped sliding member 151 on the axle seat 11, so as to rotate relative to the axle seat 11. The movement process of the first main swing arm 131 will be described in a specific case.

With continued reference to fig. 6 and 7, when the electronic device 100 is in the unfolded state, the first slider 151 may be received in the installation space 111, and the connection portion 1311 of the first main swing arm 131 may be located at a side close to the first end 1511a of the first chute 1511. When the electronic device 100 is switched from the unfolded state to the second folded state, the first main swing arm 131 rotates relative to the shaft seat 11 along the second direction (direction B), and for the connection portion 1311, the connection portion 1311 may slide from the first end 1511a of the first chute 1511 to a direction approaching the second end 1511B, that is, the connection portion 1311 moves to a side approaching the shaft seat 11. When the electronic device 100 is in the second folded state, the connection portion 1311 may be located at a side near the second end 1511b of the first chute 1511.

When the electronic device 100 is switched from the unfolded state to the first folded state, the first main swing arm 131 rotates relative to the shaft seat 11 along the first direction (a direction), and for the connection portion 1311, the connection portion 1311 needs to move from the first end 1511a of the first chute 1511 to a direction away from the second end 1511 b. The overall size of the hinge assembly 10 is small due to the limitation of the size of the electronic device 100, and therefore the size of the first slider 151 in the width direction Y of the hinge assembly 10 (i.e., the arc length of the first slider 151) is small, in this case, if the first slider 151 is fixed on the axle seat 11 and cannot move, when the first main swing arm 131 rotates along the a direction, the connection portion 1311 is separated from the first sliding slot 1511 due to the limitation of the arc length of the first slider 151, so that the first main swing arm 131 cannot rotate any more, that is, the first sliding slot 1511 is difficult to provide the connection portion 1311 of the first main swing arm 131 with a sliding stroke sliding in a direction away from the second end 1511b, so that the electronic device 100 cannot switch from the unfolded state to the first folded state.

In the embodiment of the present application, the first sliding member 151 may slide in the installation space 111, that is, the first sliding member 151 may slide with respect to the shaft seat 11. Therefore, when the first main swing arm 131 rotates relative to the shaft seat 11 in the a direction, the first slider 151 may slide toward the third end 1111a of the first guide slot 1111 and may extend outward from the inside of the installation space 111, so that the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the shaft assembly 10 includes the sliding distance between the connecting portion 1311 and the first slider 151 and the distance between the first slider 151 and the installation space 111 of the shaft seat 11, so that the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the shaft assembly 10 can be increased, and the distance between the connecting portion 1311 and the shaft seat 11 in the width direction Y of the shaft assembly 10 does not need to be increased by increasing the sliding distance between the connecting portion 1311 and the first slider 151, so that the connecting portion 1311 is always in a contact state with the first sliding slot 1511, and the first main swing arm 131 cannot continue to rotate due to the detachment of the connecting portion 1311 from the first sliding slot 1511 is avoided, so that the electronic device 100 can be switched from the unfolded state to the first folded state.

The sliding assembly 15 connected with the first auxiliary swing arm 132, the sliding assembly 15 connected with the second main swing arm 141, and the sliding assembly 15 connected with the second main swing arm 141 are identical to the above structure of the sliding assembly 15 connected with the first main swing arm 131, and the movement principles of the first auxiliary swing arm 132, the second main swing arm 141, and the second main swing arm 141 are also identical to the movement principles of the first main swing arm 131, so that the detailed description is not repeated here.

By providing the axle seat 11 with the sliding assembly 15 capable of sliding relative to the axle seat 11, it is beneficial to provide sufficient sliding travel for each swing arm, so that each swing arm can rotate inwards and outwards, that is, by providing the sliding assembly 15, the rotation angle of each swing arm is increased, and thus the electronic device 100 is folded inwards and folded outwards.

On the other hand, the sliding component 15 is disposed between the swing arm and the shaft seat 11 to adjust the distance between the swing arm and the shaft seat 11, specifically, when the electronic device 100 is switched from the unfolded state to the first folded state, the sliding component 15 may extend away from the shaft seat 11, so that the distance between the swing arm and the shaft seat 11 is increased, i.e., the overall width of the rotating shaft component 10 is increased, so that the rotating shaft component 10 is matched with the flexible display screen 20 in the first folded state, and the possibility that the rotating shaft component 10 extrudes the flexible display screen 20 in the first folded state is reduced. When the electronic device 100 is switched from the unfolded state to the second folded state, the sliding assembly 15 can be contracted in a direction close to the shaft seat 11, so that the distance between the swing arm and the shaft seat 11 is reduced, the flexible display screen 20 in the second folded state is adapted to the rotating shaft assembly 10, and the possibility that the rotating shaft assembly 10 stretches the flexible display screen 20 in the second folded state is reduced.

With continued reference to fig. 6, the first main swing arm 131 has a main body portion 1312, one end of the main body portion 1312 being connected to a connecting portion 1311, and the other end being connected to the first bracket 121. The first slider 151 is provided with a first notch 1513, and the first notch 1513 communicates with the first chute 1511. When the first main swing arm 131 rotates, the first notch 1513 can avoid the main body 1312 of the first main swing arm 131, so as to reduce the possibility of interference between the first main swing arm 131 and the first slider 151.

The first slide member 151 connected with the first auxiliary swing arm 132, the first slide member 151 connected with the second main swing arm 141, and the first slide member 151 connected with the second main swing arm 141 may be provided with the first notch 1513 for avoiding, so as to realize smooth rotation of each swing arm, which is not described herein.

The shaft seat 11 is provided with the second notch 112, the second notch 112 is communicated with the installation space 111, and when the first main swing arm 131 rotates, the second notch 112 can avoid the main body 1312 of the first main swing arm 131, so that the possibility of interference between the first main swing arm 131 and the shaft seat 11 is reduced.

The shaft seat 11 is provided with the second notch 112 for avoiding at the position corresponding to the first auxiliary swing arm 132, the second main swing arm 141 and the second main swing arm 141, so as to realize smooth rotation of each swing arm, which is not described herein.

As shown in fig. 8 and 9, fig. 8 is a partially exploded view of the turntable assembly 10 according to an embodiment of the present application. Fig. 9 is a partial cross-sectional view of the pivot assembly 10 in an embodiment of the present application. The slide assembly 15 may further include a second slide 152, the second slide 152 being slidably disposed in the installation space 111, wherein the second slide 152 includes a second guide protrusion 1522, and the second guide protrusion 1522 may extend into the first guide groove 1111 of the installation space 111 and move along the first guide groove 1111. Specifically, the second guide protrusion 1522 may be an arc-shaped protrusion such that the second slider 152 may slide along an arc-shaped trajectory within the installation space 111.

The second sliding member 152 is provided with a second sliding groove 1521, and the first sliding member 151 is accommodated in the second sliding groove 1521 and can slide in the second sliding groove 1521, wherein the second sliding groove 1521 includes a second guiding groove 1523, and the first guiding protrusion 1512 of the first sliding member 151 can extend into the second guiding groove 1523, so that the first sliding member 151 can slide in the second sliding member 152 along an arc track.

In the process of switching the rotation shaft assembly 10 from the unfolded state to the second folded state, the bracket rotates in the second direction (i.e., the swing arm group rotates in the second direction), and as shown in fig. 7, the connection portion 1311 of the swing arm group slides from the first end 1511a of the first slide slot 1511 to the direction close to the second end 1511b of the first slide slot 1511, and in the process of switching the rotation shaft assembly 10 from the unfolded state to the first folded state, the bracket rotates in the first direction (i.e., the swing arm group rotates in the second direction), the connection portion 1311 of the swing arm group slides from the first end 1511a of the first slide slot 1511 to the direction far from the second end 1511b of the first slide slot 1511, the first slide member 151 slides from the second slide slot 1521 to the side far from the shaft seat 11, and the second slide member 152 can extend out of the installation space 111.

The first sliding member 151 and the second sliding member 152 may form a telescopic nested structure, and when the electronic device 100 is switched from the unfolded state to the first folded state, the second sliding member 152 may extend from the installation space 111, and the first sliding member 151 may extend from the second sliding member 152, so that the sliding stroke of the swing arm is further increased to meet the rotation requirement of the swing arm. Meanwhile, when both the first slider 151 and the second slider 152 are in the extended state, the distance between the swing arm and the shaft seat 11 is further increased, thereby increasing the width of the entire spindle assembly 10.

The sliding assembly 15 may further comprise a plurality of sliding members nested together and extendable and retractable to provide sufficient sliding travel for the swing arm and allow the distance between the swing arm and the axle seat 11 to be adequately adjusted, as desired for use of the electronic device 100.

The above is to realize the rotation of each swing arm through the sliding component, thereby realizing the functions of inward folding and outward folding of the electronic equipment, and the following detailed description of how the size and the shape of the rotating shaft component are matched with the flexible display screen, so as to ensure that the flexible display screen is not extruded or stretched.

As shown in fig. 10, fig. 10 is a schematic diagram of a rotating shaft assembly 10 according to another embodiment of the present application. The spindle assembly 10 further includes a support plate assembly 16, and the support plate assembly 16 includes at least a main support plate located at both sides of the spindle base 11 along the width direction Y of the spindle assembly 10, wherein the main support plates at both sides of the spindle base 11 are a first main support plate 161 and a second main support plate 162, respectively, the first main support plate 161 and the second main support plate 162 may be flat plate structures, and the first main support plate 161 is connected to one side of the first bracket 121 and the second main support plate 162 is connected to one side of the second bracket 122 along the thickness direction Z of the spindle assembly 10. The first main support plate 161 and the second main support plate 162 are respectively connected to the flexible display screen 20 and support the flexible display screen 20.

The spindle assembly 10 further includes elastic members located on both sides of the spindle base 11 along the width direction Y of the spindle assembly 10, wherein the elastic members located between the first main support plate 161 and the spindle base 11 are first elastic members 171, and the first main support plate 161 is rotatably connected to the spindle base 11 through the first elastic members 171. The elastic member between the second main supporting plate 162 and the shaft seat 11 is a second elastic member 172, and the second main supporting plate 162 is rotatably connected with the shaft seat 11 through the second elastic member 172. The first elastic member 171 and the second elastic member 172 have elastic deformation capability, and the materials of the two may be high-elasticity metals, such as spring steel, spring copper, spring aluminum, or high-elasticity plastic materials, composite materials, etc., which are not listed here.

When the main support plate rotates in the first direction relative to the shaft seat 11, the elastic member stretches to move the main support plate away from the shaft seat 11 during the process of switching the rotating shaft assembly 10 from the unfolded state to the first folded state, and when the main support plate rotates in the second direction relative to the shaft seat 11, the elastic member contracts to move the main support plate close to the shaft seat 11 during the process of switching the rotating shaft assembly 10 from the unfolded state to the second folded state.

As mentioned above, in order to prevent the flexible display 20 from being pressed by the structural members formed by the first housing 30, the hinge assembly 10, and the second housing 40, the length of the structural members should be greater than that of the flexible display 20 in the first folded state. In the embodiment of the present application, when the electronic device 100 is switched from the unfolded state to the first folded state, the first elastic member 171 may be stretched along with the rotation of the first main supporting plate 161, and the second elastic member 172 may be stretched along with the rotation of the second main supporting plate 162, and the length of the first elastic member 171 and the second elastic member 172 is increased, so that the width of the hinge assembly 10 in the first folded state is increased, and the width of the structural member connected by the first housing 30, the hinge assembly 10 and the second housing 40 is matched with the width of the flexible display 20, and at this time, the flexible display 20 is not extruded, thereby reducing the risk of cracking the flexible display 20 during the folding process, and improving the reliability of the electronic device 100.

Further, in the process of switching the electronic device 100 from the unfolded state to the first folded state, the flexible display 20 is folded along the hinge assembly 10, and the position of the folded region formed by folding the flexible display 20 corresponds to the position of the hinge assembly 10. The shape of the bending zone in the first folded state may be "U" shaped or drop shaped. After the first elastic member 171 and the second elastic member 172 are stretched, the width of the rotating shaft assembly 10 in the first folded state is increased, so that the width of the rotating shaft assembly can be matched with the arc length of the bending region of the flexible display screen 20, that is, due to the stretching of the first elastic member 171 and the second elastic member 172, the rotating shaft assembly 10 provides a corresponding accommodating space for the bending region of the flexible display screen 20, and the possibility that the rotating shaft assembly 10 extrudes the bending region of the flexible display screen 20 is reduced.

As mentioned above, in order to prevent the flexible display 20 from being pulled by the structural members formed by the first housing 30, the hinge assembly 10 and the second housing 40, the length of the structural members should be smaller than the length of the flexible display 20 in the second folded state. In the embodiment of the present application, when the electronic device 100 is switched from the unfolded state to the second folded state, the first elastic member 171 may be compressed along with the rotation of the first main supporting plate 161, and the second elastic member 172 may be compressed along with the rotation of the second main supporting plate 162, and the lengths of the first elastic member 171 and the second elastic member 172 are reduced, so that the width of the hinge assembly 10 in the second folded state is reduced, and the width of the structural member connected by the first housing 30, the hinge assembly 10 and the second housing 40 is matched with the width of the flexible display 20, and at this time, the flexible display 20 is not stretched, thereby reducing the risk of cracking the flexible display 20 during the folding process, and improving the reliability of the electronic device 100.

Further, in the process of switching the electronic device 100 from the unfolded state to the second folded state, the hinge assembly is accommodated in the folded region of the flexible display 20. The shape of the bending zone in the second folded state may be "U" shaped or drop shaped. After the first elastic member 171 and the second elastic member 172 are compressed, the width of the hinge assembly 10 in the second folded state is reduced compared with the width of the hinge assembly 10 in the unfolded state, so that the hinge assembly 10 can be accommodated in the bending region of the flexible display 20 and the bending region of the flexible display 20 is not pulled.

With continued reference to fig. 10, two, three or more first elastic members 171 may be provided between the first main support plate 161 and the shaft seat 11 along the length direction X of the shaft assembly 10 to improve the stability of the connection between the first main support plate 161 and the shaft seat 11. Two, three or more second elastic members 172 may be provided between the second main support plate 162 and the shaft seat 11 to improve the stability of the connection between the second main support plate 162 and the shaft seat 11.

As shown in fig. 11, fig. 11 is an enlarged view of a portion II in fig. 10. The first elastic member 171 may include a first elastic portion 1711, a second elastic portion 1712, and a third elastic portion 1713, as shown in fig. 10, the first elastic portion 1711 is fixedly connected to the shaft seat 11 through the second elastic portion 1712, and the first elastic portion 1711 is fixedly connected to the first main supporting plate 161 through the third elastic portion 1713. The first elastic portion 1711 and the shaft seat 11, and the third elastic portion 1713 and the first main supporting plate 161 may be connected by welding, bonding, or clamping.

The first elastic portion 1711 has a hollow portion 1714, as shown in fig. 10, the hollow portion 1714 penetrates through the first elastic member 171 along the thickness direction Z of the first elastic member 171. The hollowed-out portion 1714 may be rectangular, that is, the first elastic portion 1711 may have a structure of "mouth" shape. The hollowed-out portion 1714 provides a deformation space for the first elastic member 171, so as to increase the deformation of the first elastic member 171, so as to realize the change of the width of the rotating shaft assembly 10. In other embodiments, the hollowed-out portion 1714 may also have a shape of a circle, triangle, diamond, etc.

The second elastic portion 1712 and the third elastic portion 1713 may have a "straight" structure to achieve stable and reliable connection between the first elastic portion 1711 and the shaft seat 11 and the first main supporting plate 161.

The structure of the second elastic member 172 is the same as that of the first elastic member 171, and will not be described herein.

In other embodiments, the first elastic member 171 and the second elastic member 172 may be elastic bodies such as springs, elastic sheets, and the like.

As shown in fig. 12, fig. 12 is a schematic view of a rotor assembly 10 according to yet another embodiment of the present application. The support plate assembly 16 may further include sub-support plates disposed at both sides of the shaft seat 11 in the width direction Y of the shaft assembly 10, wherein the sub-support plates between the shaft seat 11 and the first main support plate 161 are first sub-support plates 163 and the sub-support plates between the shaft seat 11 and the second main support plate 162 are second sub-support plates 164. The first and second sub supporting plates 163 and 164 may be connected with the flexible display screen, respectively, to support the flexible display screen.

The first sub-support plate 163 may be rotatably coupled with the shaft seat 11 and the first main support plate 161 by the first elastic member 171, that is, one side of the shaft assembly 10 adjacent to the first main support plate 161 in the width direction Y of the shaft assembly 10 may be provided with at least two first elastic members 171.

The second sub-support plate 164 may be rotatably coupled with the shaft seat 11 and the second main support plate 162 by the second elastic member 172, that is, one side of the shaft assembly 10 adjacent to the second main support plate 162 may be provided with at least two second elastic members 172 in the width direction Y of the shaft assembly 10.

When the electronic apparatus 100 is switched from the unfolded state to the first folded state, the first elastic members 171 on both sides of the first sub-support plate 163 are stretched along with the rotation of the first main support plate 161 and the first sub-support plate 163, and the second elastic members 172 on both sides of the second sub-support plate 164 are stretched along with the rotation of the second main support plate 162 and the second sub-support plate 164. In contrast, when the electronic device 100 is switched from the unfolded state to the second folded state, each of the first elastic members 171 and each of the second elastic members 172 are compressed. The above embodiment increases the number of the first elastic members 171 and the second elastic members 172 in the width direction Y of the spindle assembly 10 as compared to the embodiment of fig. 10. When the number of elastic members increases, the overall elongation and compression of the elastic members increases, that is, the variation of the width dimension of the hinge assembly 10 increases, thereby being advantageous to meet the use requirement of the flexible display screen 20.

On the other hand, by arranging the first auxiliary supporting plate 163 and the second auxiliary supporting plate 164, the supporting effect of the rotating shaft assembly 10 on the flexible display screen 20 is improved, the possibility that the flexible display screen 20 collapses to one side close to the rotating shaft assembly 10 is reduced, the service life of the flexible display screen 20 is prolonged, and the stability and reliability of the use of the flexible display screen 20 are improved.

As can be seen from the above, as the number of the support plates increases, the number of the elastic members in the width direction of the spindle assembly 10 increases. In some embodiments, the number of the first and second sub-supporting plates 163 and 164 on both sides of the shaft seat 11 may be one, two, three, or more. Specifically, the number of the first sub-supporting plates 163 and the second sub-supporting plates 164 can be adjusted according to the usage requirement of the flexible display screen 20, for example, when the arc length of the bending region 21 formed by the flexible display screen 20 in the first folded state is large, by increasing the number of the first sub-supporting plates 163 and the second sub-supporting plates 164, a reliable supporting effect can be provided for the bending region 21 of the flexible display screen 20, so that the flexible display screen 20 cannot collapse in a direction approaching to the rotating shaft assembly 10, and meanwhile, the size variation of the rotating shaft assembly 10 is increased due to the corresponding increase of the number of the first elastic members 171 and the second elastic members 172, so as to be matched with the arc length of the bending region 21 of the flexible display screen 20, and the possibility that the flexible display screen 20 is extruded is reduced.

As further shown in fig. 12, flexible members are further disposed on two sides of the shaft seat 11 along the width direction Y of the shaft assembly 10, wherein the flexible member located on one side of the first bracket 121 is a first flexible member 165, and the first main support plate 161 may be rotatably connected to the first bracket 121 through the first flexible member 165. The flexible member located at one side of the second bracket 122 is a second flexible member 166, and the second main support plate 162 may be rotatably coupled to the second bracket 122 through the second flexible member 166.

The first flexible member 165 and the second flexible member 166 may have a "in-line" structure, and the material may be a high-flexibility plastic, for example, a thermoplastic elastomer (TPE), a Thermoplastic Polyurethane (TPU), a polyvinyl chloride (PVC), or the like, or may be a high-flexibility metal, for example, metallic copper, metallic aluminum, or the like.

In some other embodiments, the first 165 and second 166 flexures may have other shaped structures, such as an "I" shape, a "cross" shape, or a "rice" shape.

The first flexible member 165 may be welded to the first main support plate 161 and the first bracket 121, respectively, and the second flexible member 166 may be welded to the second main support plate 162 and the second bracket 122, respectively, and in some other embodiments, each flexible member may be bonded or snap-fit to the corresponding support plate and bracket.

A plurality of first flexible members 165 may be provided between the first main support plate 161 and the first bracket 121 along the length direction X of the shaft assembly 10 to improve the stability and reliability of the connection between the first main support plate 161 and the first bracket 121. A plurality of second flexible members 166 may be provided between the second main support plate 162 and the second support 122 to improve the stability and reliability of the connection between the second main support plate 162 and the second support 122.

Fig. 13 is a schematic view of the connection of the first main support plate 161 and the first bracket 121 in an embodiment of the present application, wherein the electronic device 100 is in a unfolded state. The first bracket 121 includes a first body portion 1211 and a second body portion 1212, and the first body portion 1211 is connected to the second body portion 1212. The first body portion 1211 has a stepped shape structure, and the first flexible member 165 may be received in the first body portion 1211 and connected to the first body portion 1211. The longitudinal section of the second body portion 1212 is trapezoidal, specifically, the dimension of the second body portion 1212 in the thickness direction Z of the rotary shaft assembly 10 gradually decreases in a direction away from the first body portion 1211, so that the second body portion 1212 has a top wall disposed obliquely. In the unfolded state of the electronic apparatus 100, there is a certain space between the bottom wall of the first main support plate 161 and the top wall of the second body portion 1212. During the switching of the electronic apparatus 100 between the unfolded state and the folded state, the first main support plate 161 may be rotated in a direction approaching the first bracket 121 until the bottom wall of the first main support plate 161 abuts against the top wall of the second body portion 1212.

The structure of the second bracket 122 is the same as that of the first bracket 121, and will not be described here. During the switching of the electronic device 100 between the unfolded state and the folded state, the second main support plate 162 may rotate in a direction approaching the second stand 122 until the bottom wall of the second main support plate 162 abuts against the inclined top wall of the second stand 122.

Fig. 14 is a schematic view of the bending area 21 of the flexible display 20 and the first bracket 121, the first main support plate 161, the second bracket 122, and the second main support plate 162 of the electronic device 100 in the first folded state according to an embodiment of the application. In the first folded state, the bending area 21 of the flexible display screen 20 may approximate to a water drop shape, at this time, the first main support plate 161 is abutted against the first bracket 121, and the second main support plate 162 is abutted against the second bracket 122, so that the first main support plate 161 and the second main support plate 162 are obliquely arranged towards a side far away from the flexible display screen 20, so as to adapt to the shape of the bending area 21 of the flexible display screen 20, thereby improving the supporting effect of the first main support plate 161 and the second main support plate 162 on the flexible display screen 20, providing an accommodating space for the bending area 21 of the flexible display screen 20, and reducing the possibility that the first main support plate 161 and the second main support plate 162 cause extrusion on the flexible display screen 20 when the electronic device 100 is in the first folded state, so as to ensure normal use of the flexible display screen 20.

Similarly, when the electronic device 100 is in the second folded state, the shape of the bending region 21 of the flexible display 20 may be similar to a U shape, and in the second folded state, the hinge assembly 10 is accommodated in the bending region 21 of the flexible display 20, at this time, the first main support plate 161 may abut against the first bracket 121, and the second main support plate 162 may abut against the second bracket 122, so that the first main support plate 161 and the second main support plate 162 are both disposed obliquely to a side far away from the flexible display 20, and thus adapt to the shape of the bending region 21 of the flexible display 20, so as to improve the supporting effect on the flexible display 20 and reduce the possibility that the flexible display 20 is pulled.

As shown in fig. 15, fig. 15 is a partial schematic view of the rotating shaft assembly 10 according to still another embodiment of the present application, and fig. 15 conceals the first main support plate 161, the first sub-support plate 163 and the first bracket 121 so as to show the structures of the first push rod 191 and the second push rod 192. The spindle assembly 10 may further include a push rod assembly 19, where the push rod assembly 19 includes first push rods 191, and as shown in fig. 12, one first push rod 191 is movably connected between the spindle base 11 and the first bracket 121, and the other first push rod 191 is also movably connected between the spindle base 11 and the second bracket 122. That is, the first push rods 191 are connected to both sides of the shaft seat 11.

The structure of the first push rod 191 will be described below with reference to fig. 12 and 15, taking the first push rod 191 between the shaft seat 11 and the first bracket 121 as an example.

One end of the first push rod 191 is rotatably connected with the first bracket 121, and the other end of the first push rod 191 is rotatably connected with the shaft seat 11 and can move relative to the shaft seat 11 along the length direction X of the rotating shaft assembly 10.

In some embodiments, the first push rod 191 is provided with a first spherical portion 1911 and a second spherical portion 1912 at both ends of the first push rod 191, and the first push rod 191 is hinged to the first bracket 121 through the first spherical portion 1911, and the first push rod 191 is hinged to the shaft seat 11 through the second spherical portion 1912, so that the first push rod 191 can smoothly rotate between the first bracket 121 and the shaft seat 11.

The shaft seat 11 is provided with a guide rail 114 and a moving member 113, the guide rail 114 extends along the length direction X of the rotating shaft assembly 10, and the moving member 113 is connected with the guide rail 114 and can move along the guide rail 114, that is, the moving member 113 can move along the length direction X of the rotating shaft assembly 10. The first push rod 191 is rotatably connected to the moving member 113, and specifically, the second spherical portion 1912 of the first push rod 191 is hinged to the moving member 113 such that the first push rod 191 can rotate relative to the moving member 113 and can move along the guide rail 114 together with the moving member 113. By providing the guide rail 114, the stability of the moving member 113 moving in the length direction X of the rotary shaft assembly 10 is improved, thereby improving the stability of the movement of the first push rod 191 and improving the movement accuracy of the rotary shaft assembly 10.

When the electronic device 100 is in the unfolded state, the first push rod 191 may be in the position shown in fig. 15, and when the electronic device 100 is switched from the unfolded state to the first folded state, the first push rod 191 may rotate along with the rotation of the first bracket 121, and at the same time, the first push rod 191 may also move along the length direction X of the rotating shaft assembly 10 by the moving member 113, so that an included angle α between the first push rod 191 and the width direction Y of the rotating shaft assembly 10 becomes smaller, that is, a projected length of the first push rod 191 in the width direction Y of the rotating shaft assembly 10 becomes larger, so that the first bracket 121 may move away from the shaft seat 11, and the width of the rotating shaft assembly 10 is increased, so as to match with an arc length of the flexible display screen in the first folded state. In contrast, when the electronic device 100 is switched from the unfolded state to the second folded state, the first push rod 191 may further move along the length direction X of the rotating shaft assembly 10 by the moving member 113, so that the angle α between the first push rod 191 and the width direction Y of the rotating shaft assembly 10 becomes larger, that is, the projected length of the first push rod 191 in the width direction Y of the rotating shaft assembly 10 becomes smaller, so that the first bracket 121 may move toward the shaft seat 11, even if the width of the rotating shaft assembly 10 is reduced, so as to match the arc length of the flexible display screen in the second folded state.

When the rotating shaft assembly 10 is in the first folded state, the first push rod 191 has a first included angle α1 with the width direction Y of the rotating shaft assembly 10. When the rotating shaft assembly 10 is in the second folded state, a second included angle α2 is formed between the first push rod 191 and the width direction Y of the rotating shaft assembly 10, and the first included angle α1 is smaller than the second included angle α2, so that the projection of the first push rod 191 on the width direction Y of the rotating shaft assembly 10 is continuously reduced in the process of switching the rotating shaft assembly 10 from the first folded state to the second folded state.

The structure and the movement principle of the first push rod between the shaft seat and the second bracket are the same as those of the first push rod between the shaft seat and the first bracket, and are not repeated here.

With continued reference to fig. 12 and 15, the rotary shaft assembly 10 further includes a second push rod 192, wherein one second push rod 192 is movably connected between the shaft seat 11 and the first auxiliary supporting plate 163, and the other second push rod 192 is also movably connected between the shaft seat 11 and the second auxiliary supporting plate 164, that is, the second push rods 192 are connected to both sides of the shaft seat 11.

The structure of the second push rod 192 will be described below taking the second push rod 192 between the shaft seat 11 and the first sub-support plate 163 as an example.

One end of the second push rod 192 is rotatably connected to the first sub supporting plate 163, and the other end of the second push rod 192 is rotatably connected to the shaft seat 11 and is movable relative to the shaft seat 11 along the length direction X of the rotary shaft assembly 10.

In some embodiments, the second push rod 192 is provided at both ends thereof with a third spherical portion 1921 and a fourth spherical portion 1922, respectively, the second push rod 192 is hinged with the first sub-supporting plate 163 through the third spherical portion 1921, and the second push rod 192 is hinged with the shaft seat 11 through the fourth spherical portion 1922, so that the second push rod 192 can smoothly rotate between the first sub-supporting plate 163 and the shaft seat 11.

In some embodiments, the first sub-supporting plate 163 is provided with a mounting seat (not shown), and the third spherical portion 1921 of the second push rod 192 may be hinged to the mounting seat to improve the stability of the connection between the second push rod 192 and the first sub-supporting plate 163.

The shaft seat 11 is provided with a fitting member 115, the fitting member 115 is provided with a fitting groove 1151 extending along the length direction X of the rotating shaft assembly 10, one end of the second push rod 192 is located in the fitting groove 1151 and can move along the fitting groove 1151, specifically, the fourth spherical portion 1922 of the second push rod 192 can be located in the fitting groove 1151, and the fourth spherical portion 1922 can move along the fitting groove 1151, so that the second push rod 192 can rotate relative to the fitting member 115 and can move along the fitting groove 1151 of the fitting member 115.

The engaging member 115 may be fixedly connected to the moving member 113, for example, a portion of the engaging member 115 may be embedded in the moving member 113, so that the engaging member 115 may move along the length direction X of the rotating shaft assembly 10 along with the moving member 113, thereby implementing linkage between the first push rod 191 and the second push rod 192, that is, the first push rod 191 is connected to the second push rod 192 through the moving member 113 and the engaging member 115, and when the first push rod 191 moves along the length direction X of the rotating shaft assembly 10, the second push rod 192 also moves along with the moving member, so as to improve the movement accuracy of the entire rotating shaft assembly 10, thereby improving the reliability of the rotating shaft assembly 10.

When the electronic device 100 is in the unfolded state, the second push rod 192 may be in the position shown in fig. 15, and when the electronic device 100 is switched from the unfolded state to the first folded state, the second push rod 192 may rotate along with the rotation of the first sub-supporting plate 163, and at the same time, the second push rod 192 may also move along the length direction X of the rotating shaft assembly 10 through the matching groove 1151, so that an included angle β between the second push rod 192 and the width direction Y of the rotating shaft assembly 10 becomes smaller, that is, a projected length of the second push rod 192 in the width direction Y of the rotating shaft assembly 10 becomes larger, so that the first sub-supporting plate 163 may move away from the shaft seat 11, and a width of the rotating shaft assembly 10 is increased, so as to match an arc length of the flexible display screen 20 in the first folded state. In contrast, when the electronic device 100 is switched from the unfolded state to the second folded state, the second push rod 192 may further move along the length direction X of the hinge assembly 10 through the engaging groove 1151, so that the angle β between the second push rod 192 and the width direction Y of the hinge assembly 10 becomes larger, that is, the projected length of the second push rod 192 in the width direction Y of the hinge assembly 10 becomes smaller, so that the first sub supporting plate 163 may move toward the shaft seat 11, even though the width of the hinge assembly 10 is reduced, to match the arc length of the flexible display screen 20 in the second folded state.

When the rotating shaft assembly 10 is in the first folded state, the second push rod 192 has a third included angle β1 with the width direction Y of the rotating shaft assembly 10. When the rotating shaft assembly 10 is in the second folded state, a fourth included angle β2 is formed between the second push rod 192 and the width direction Y of the rotating shaft assembly 10, and the third included angle β1 is smaller than the second included angle β2, so that the projection of the second push rod 192 on the width direction Y of the rotating shaft assembly 10 is continuously reduced in the process of switching the rotating shaft assembly 10 from the first folded state to the second folded state.

The structure and the movement principle of the second push rod between the shaft seat and the second auxiliary supporting plate are the same as those of the second push rod between the shaft seat and the first auxiliary supporting plate, and are not repeated here.

When the electronic device 100 is in the first folded state and the second folded state, the first push rod 191 may perform a supporting and limiting function on the first bracket 121 and the second bracket 122, and since the first main support plate 161 is connected to the first bracket 121 and the second main support plate 162 is connected to the second bracket 122, the limiting and constraining function on the first main support plate 161 and the second main support plate 162 are also performed, and the positions of the first main support plate 161 and the second main support plate 162 in the first folded state and the second folded state are determined, so that the shape of the hinge assembly 10 is matched with the shape between the flexible display screens 20, the possibility that the flexible display screens 20 are pressed or stretched is reduced, and meanwhile, the first main support plate 161 and the second main support plate 162 perform a reliable supporting function on the flexible display screens 20 under the action of the first push rod 191, so that the first main support plate 161 and the second main support plate 162 maintain the current positions to improve the stability of the flexible display screens 20.

The second push rod 192 plays a role in supporting and limiting the first auxiliary supporting plate 163 and the second auxiliary supporting plate 164 respectively, and determines positions of the first auxiliary supporting plate 163 and the second auxiliary supporting plate 164 in the first folding state and the second folding state, so that the shape of the rotating shaft assembly 10 is matched with the shape of the flexible display screen 20. Meanwhile, the first sub-supporting plate 163 and the second sub-supporting plate 164 are maintained at the current positions under the supporting action of the second push rod 192, thereby providing a reliable supporting action on the flexible display 20 to improve the stability of the flexible display 20.

For example, as shown in fig. 16, fig. 16 is a schematic view of the flexible display 20 and each support plate in a first folded state according to an embodiment of the application. The bending area 21 of the flexible display 20 in the first folded state may be in the shape of a drop. The bending region 21 is accommodated in the first space 10a surrounded by the shaft seat, the main supporting plate and the auxiliary supporting plate. At this time, the second push rods 192 may provide supporting forces for the first and second sub-supporting plates 163 and 164 in a direction away from the flexible display screen 20, respectively, and stably maintain the first and second sub-supporting plates 163 and 164 at a predetermined position to increase a distance between the first and second sub-supporting plates 163 and 164, thereby providing a sufficient accommodating space for the bending region 21 of the flexible display screen 20. The first main support plate 161 and the second main support plate 162 are also stably maintained in a predetermined state by the respective first push rods 191, so that the shape of the accommodating space defined by the first main support plate 161, the second main support plate 162, the first sub-support plate 163, the second sub-support plate 164 and the shaft seat 11 is matched with the shape of the bending region 21 of the flexible display screen 20 to ensure that the flexible display screen 20 is not pressed. Meanwhile, as the form of each supporting plate is matched with the form of the flexible display screen 20, the reliability of the supporting effect of the supporting plates on the flexible display screen 20 is improved, the possibility that the flexible display screen collapses downwards when being pressed is reduced, and the operation experience of a user is further improved.

When the rotating shaft assembly is in the first folding state, the rotating shaft assembly is provided with a first space for accommodating the bending area of the flexible display screen, and the first space can be formed by encircling the main support plate and the shaft seat, or the first space can also be formed by encircling the main support plate, the auxiliary support plate and the shaft seat. When the rotating shaft assembly is in the second folding state, the rotating shaft assembly is provided with a second space, the second space can be formed by encircling the main support plate and the shaft seat, or the second space can also be formed by encircling the main support plate, the auxiliary support plate and the shaft seat, and the bending area of the flexible display screen is used for being coated on one side, deviating from the second space, of the main support plate and the shaft seat.

The elastic piece stretches to enable the main supporting plate to be far away from the shaft seat in the process of switching the rotating shaft assembly from the unfolding state to the first folding state, so that the width of the rotating shaft assembly in the first folding state is increased to be matched with the width of the flexible display screen in the first folding state, and the elastic piece contracts to enable the main supporting plate to be close to the shaft seat in the process of switching the rotating shaft assembly from the unfolding state to the second folding state, so that the width of the rotating shaft assembly in the second folding state is reduced compared with the width of the rotating shaft assembly in the unfolding state, the rotating shaft assembly can be contained in the bending area of the flexible display screen, and the bending area of the flexible display screen cannot be pulled. It can be seen that the arc length of the first space is longer than the arc length of the second space.

One side of the rotating shaft assembly deviating from the flexible display screen can be provided with a decorative plate assembly, and the decorative plate assembly can shield the structure inside the rotating shaft assembly, so that the structure outside the rotating shaft assembly is reduced, the possibility of interference and collision between the structure inside the rotating shaft assembly and the structure inside the rotating shaft assembly is reduced, the reliability of the whole rotating shaft assembly is improved, and meanwhile, the fineness of the appearance form of the rotating shaft assembly is improved, so that the use requirement of electronic equipment is met.

As shown in fig. 17, fig. 17 is a partial schematic view of a rotary shaft assembly 10' according to the related art. In the related art, the trim panel assembly 18 'may include a first trim panel 181', a second trim panel 182', and a third trim panel 183', the first trim panel 181 'being coupled to the first bracket 121', the second trim panel 182 'being coupled to the second bracket 122', the third trim panel 183 'being coupled to the axle seat 11'. A space D is provided between the first and third decorative plates 181' and 183' and between the second and third decorative plates 182' and 183' along the width direction Y of the rotation shaft assembly 10 '.

As shown in fig. 18, fig. 18 is a schematic view of a first decorative plate 181', a second decorative plate 182', and a third decorative plate 183' in the related art. The first decorative plate 181 'may be moved toward the third decorative plate 183' by the rotation of the first bracket 121', and the second decorative plate 182' may be moved toward the third decorative plate 183 'by the rotation of the second bracket 122'. Since the above-mentioned interval D is provided between the first and third decorative plates 181 'and 183' and between the second and third decorative plates 182 'and 183', a corresponding space is provided for the rotation of the first and second decorative plates 181 'and 182', so that interference between the first and third decorative plates 181 'and 183' and between the second and third decorative plates 182 'and 183' does not occur in the course of rotation.

In the related art, the first decorative plate 181', the second decorative plate 182' and the third decorative plate 183' are mutually independent, that is, the decorative plates are designed in a split type, so that the assembly difficulty of the rotating shaft assembly 10' is increased, specifically, in the assembly process of the rotating shaft assembly 10', the first decorative plate 181', the second decorative plate 182' and the third decorative plate 183' are required to be assembled at corresponding positions respectively, and the three parts are required to be mutually positioned due to the mutual independence of the three parts, so that the assembly precision of the rotating shaft assembly 10' is ensured, the assembly step of the rotating shaft assembly 10' is complicated, the difficulty is high, and the production cost of the rotating shaft assembly 10' is increased.

On the other hand, in the unfolded state, the space D exists between the first decorative plate 181', the second decorative plate 182' and the third decorative plate 183', and the above-mentioned decorative plates have been mentioned to block and protect the internal structure of the rotating shaft assembly 10', so that when the space exists between the decorative plates, the blocking and protecting effects of the decorative plates are reduced, thereby affecting the reliability of the rotating shaft assembly 10', and in addition, the existence of the above-mentioned space also affects the appearance forming precision of the rotating shaft assembly 10', which is difficult to satisfy the use requirements of the electronic device.

In order to solve the problem that a gap is formed between decorative plates to affect the appearance refinement of a rotating shaft assembly, an embodiment of the present application provides an integrated decorative plate assembly, and a structure of the decorative plate assembly is described in detail as follows.

As shown in fig. 19, fig. 19 is a schematic view of a rotor assembly 10 according to yet another embodiment of the present application. The decoration plate assembly includes a first decoration plate 181, a second decoration plate 182, and a third decoration plate 183 arranged along the width direction Y of the rotation shaft assembly 10. Along the thickness direction Z of the rotary shaft assembly 10, the first decorative plate 181 is connected to a side of the first bracket 121 facing away from the first main support plate 161, the second decorative plate 182 is connected to a side of the first bracket 121 facing away from the second main support plate 162, and the third decorative plate 183 is connected to a side of the shaft seat 11. The first decorative plate 181 and the third decorative plate 183, and the second decorative plate 182 and the third decorative plate 183 are connected by an elastic connection member 184. Because the elastic connection member 184 has a certain flexibility and an elastic deformation capability, so that a rotatable connection relationship between the first decorative plate 181 and the third decorative plate 183 and between the second decorative plate 182 and the third decorative plate 183 is realized, the width dimension of the hinge assembly 10 can be adjusted to match the arc length of the bending region 21 of the flexible display 20, as mentioned above, it can be appreciated that the elastic connection member 184 can be stretched or shortened according to the change of the width of the hinge assembly 10, so as to ensure that the electronic device 100 can be switched among the unfolded state, the first folded state and the second folded state.

The elastic connecting piece 184 connects the first decorative board 181, the second decorative board 182 and the third decorative board 183 into a whole, that is, the three decorative boards adopt an integrated design, and the design makes the first decorative board 181, the second decorative board 182 and the third decorative board 183 do not need to be mutually positioned in the process of reassembling, so that the assembling difficulty of the rotating shaft assembly 10 is reduced, the assembling step of the rotating shaft assembly 10 is simplified, the production cost of the rotating shaft assembly 10 is reduced, and meanwhile, the relative position precision among the first decorative board 181, the second decorative board 182 and the third decorative board 183 is improved, so that the matching precision of the rotating shaft assembly 10 is improved.

The material of the resilient connecting element 184 may be a highly resilient metal, such as spring steel, spring copper, spring aluminum, or may be a highly resilient plastic material, a composite material, etc., which are not shown here.

As shown in fig. 20, fig. 20 is a schematic diagram of an elastic connection member 184 according to an embodiment of the application, wherein the structure in the dashed box is an elastic unit 1841 in the elastic connection member 184. The elastic attachment 184 includes a plurality of interconnected elastic elements 1841, each elastic element 1841 being either stretched or compressed.

The elastic connection member 184 includes at least one elastic unit 1841, and the elastic unit 1841 has a hollow area 1841d. The elastic unit 1841 may include two first elastic segments 1841a extending along the length direction of the elastic connecting member 184 and two second elastic segments 1841b extending along the width direction of the elastic connecting member 184, the two first elastic segments 1841a and the two second elastic segments 1841b enclose a hollowed-out area 1841d, and the hollowed-out area 1841d may be rectangular, i.e., it may be understood that the elastic unit 1841 has a "mouth" shape structure, and the hollowed-out area 1841d provides a deformation space for the formation of the elastic connecting member 184 to increase the deformation amount of the elastic connecting member 184. In other embodiments, the hollowed-out area 1841d may also have a circular shape, a triangular shape, a diamond shape, or the like.

The elastic units 1841 may be continuously disposed along the length direction of the elastic connection member 184, and in particular, the number of the elastic units 1841 may be two, three, four or more in the length direction of the elastic connection member 184. Between two adjacent elastic units 1841, the second elastic segment 1841b of one elastic unit 1841 is connected with the second elastic segment 1841b of the other elastic unit 1841, thereby improving the stability and reliability of the overall structure of the elastic connector 184.

The elastic units 1841 may be disposed at intervals in the width direction of the elastic connection member 184, and in particular, the number of the elastic units 1841 may be two, three, four or more in the width direction of the elastic connection member 184. Between two adjacent elastic units 1841, the first elastic segment 1841a of one elastic unit 1841 and the first elastic segment 1841a of the other elastic unit 1841 may be connected by a third elastic segment 1841 c. The space between the adjacent elastic units 1841 provides a space for the deformation of the elastic units 1841 in the width direction Y thereof, so as to increase the deformation amount of each elastic unit 1841, and further enable the elastic connection member 184 to extend or compress along with the change of the width of the rotating shaft assembly, so as to realize the switching of the electronic device 100 among the unfolded state, the first folded state and the second folded state.

As shown in fig. 21, fig. 21 is a partial schematic view of an elastic connection 184 according to another embodiment of the present application. The elastic attachment member 184 includes a first elastic layer 1842 and a second elastic layer 1843 in its thickness direction. The first elastic layer 1842 and the second elastic layer 1843 each have one or more of the elastic elements 1841 described above. The hollow area of the first elastic layer 1842 and the hollow area 1841d of the second elastic layer 1843 are arranged in a staggered manner, that is, along the thickness direction Z of the elastic connector 184, the hollow area 1841d of the elastic unit 1841 of the first elastic layer 1842 is located at one side of the first elastic section 1841a of the elastic unit 1841 of the second elastic layer 1843, so that the hollow area 1841d of the first elastic layer 1842 is not communicated with the hollow area 1841d of the second elastic layer 1843.

As described above, the first, second and third decorative plates 181, 182, 183 are connected by the elastic connection member 184 to realize an integrated design. Therefore, the elastic connection member 184 also plays a role in shielding and protecting the internal structure of the rotating shaft assembly 10, the hollow area 1841d of the elastic connection member 184 penetrates the elastic connection member 184 along the thickness direction of the elastic connection member 184 (as shown in fig. 19), so that a gap is formed between the interior of the rotating shaft assembly 10 and the exterior of the rotating shaft assembly 10, that is, the hollow area 1841d provides an elastic deformation space for the elastic connection member 184, but reduces the protection effect of the structure inside the rotating shaft assembly 10 of the elastic connection member 184, the structure inside the rotating shaft assembly 10 may extend into the rotating shaft assembly 10 through the hollow area 1841d and interfere with the internal structure, thereby affecting the normal use of the rotating shaft assembly 10, and meanwhile, the existence of the gap affects the overall fineness of the rotating shaft assembly 10, which is not beneficial to the normal use of the rotating shaft assembly 10.

By dividing the elastic connecting piece 184 into the first elastic layer 1842 and the second elastic layer 1843, the two elastic layers can respectively shield the hollow area 1841d of each other, so that a gap for communicating the inside of the rotating shaft assembly 10 with the outside of the rotating shaft assembly 10 does not exist on the elastic connecting piece 184, the protection effect of the elastic connecting piece 184 on the internal structure of the rotating shaft assembly 10 is improved, and the overall fineness of the rotating shaft assembly 10 is improved. On the other hand, the hollow areas 1841d of the two elastic layers can still provide the space for elastic deformation for the corresponding elastic units 1841, so as to ensure the overall elastic deformation of the elastic connecting piece 184.

As further shown in fig. 21, the first elastic layer 1842 and the second elastic layer 1843 may be adhered by an adhesive layer 185, and the material of the adhesive layer 185 may be a structural adhesive, such as an epoxy, or the adhesive layer 185 may be a double-sided tape. The connection between the first elastic layer 1842 and the second elastic layer 1843 is achieved by the adhesive layer 185, which is beneficial to improving the stability and reliability of the connection between the first elastic layer 1842 and the second elastic layer 1843.

As shown in fig. 22, fig. 22 is a partial schematic view of a rotor assembly 10 according to yet another embodiment of the present application. The first decorative plate 181 includes a first plate 1811 and a second plate 1812 in the own thickness direction Z, the second decorative plate 182 includes a third plate 1821 and a fourth plate 1822 in the own thickness direction Z, and the third decorative plate 183 includes a fifth plate 1831 and a sixth plate 1832 in the own thickness direction Z. The first plate 1811, the third plate 1821, and the fifth plate 1831 are connected by a first elastic layer 1842, and the second plate 1812, the fourth plate 1822, and the sixth plate 1832 are connected by a second elastic layer 1843.

Wherein, along the thickness direction Z of the first decorative plate 181, between the first plate 1811 and the second plate 1812, between the third plate 1821 and the fourth plate 1822, and between the fifth plate 1831 and the sixth plate 1832, connection can be achieved through the adhesive layer 185.

In the process of assembling the rotating shaft assembly 10, the first plate 1811, the third plate 1821 and the fifth plate 1831 can be connected into an integral structure through the first elastic layer 1842, the second plate 1812, the fourth plate 1822 and the sixth plate 1832 are connected into an integral structure through the second elastic layer 1843, and then the two integral structures are connected together through the adhesive layer 185, so that the assembling process of the rotating shaft assembly 10 is simplified, and the assembling difficulty of the rotating shaft assembly 10 is reduced.

On the other hand, each decorative board has a multilayer structure including a glue layer 185, and the glue layer 185 is a structural glue, and the structural glue can provide a certain strength for the decorative board after curing, so that the stability of the decorative board structure is improved, the service life of the decorative board is prolonged, and the overall stability and reliability of the rotating shaft assembly 10 are improved.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotating shaft assembly, comprising:

Axle seat;

A support plate assembly, the support plate assembly is used to support a flexible display screen of an electronic device, the support plate assembly at least comprising main support plates arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly;

Wherein, the rotating shaft assembly further comprises an elastic member, wherein the elastic member is located between the main support plate and the shaft seat along the width direction of the rotating shaft assembly, and the main support plate is rotatably connected to the shaft seat through the elastic member;

When the main support plate rotates relative to the shaft seat in a first direction so that the shaft assembly switches from an unfolded state to a first folded state, the elastic member stretches to move the main support plate away from the shaft seat; when the main support plate rotates relative to the shaft seat in a second direction so that the shaft assembly switches from an unfolded state to a second folded state, the elastic member contracts to move the main support plate closer to the shaft seat;

The first direction is opposite to the second direction.

2. The hinge assembly according to claim 1, characterized in that when the hinge assembly is in the first folded state, a first space for accommodating a bending area of the flexible display screen is provided between the main support plate and the shaft seat;

When the rotating shaft assembly is in the second folded state, a second space is provided between the main support plate and the shaft seat, and the bending area of the flexible display screen is used to cover a side of the main support plate and the shaft seat away from the second space;

The arc length of the first space is greater than the arc length of the second space.

3. The shaft assembly according to claim 1, wherein the elastic member comprises a hollow portion;

The hollow portion penetrates the elastic member along a thickness direction of the elastic member.

4. The shaft assembly according to claim 3, wherein the elastic member comprises a first elastic portion, a second elastic portion and a third elastic portion;

The hollow portion is arranged on the first elastic portion, the first elastic portion is connected to the shaft seat through the second elastic portion, and the first elastic portion is connected to the main support plate through the third elastic portion.

5 . The rotating shaft assembly according to claim 1 , wherein a plurality of the elastic members are connected between the main support plate and the shaft seat along the length direction of the rotating shaft assembly.

6. The shaft assembly according to claim 1, characterized in that the support plate assembly further comprises a secondary support plate disposed between the main support plate and the shaft seat along the width direction of the shaft assembly;

Along the width direction of the rotating shaft assembly, the elastic members are provided on both sides of the auxiliary support plate, and one end of the auxiliary support plate is rotatably connected to the main support plate on the same side through the elastic member; the other end of the auxiliary support plate is rotatably connected to the shaft seat through the elastic member.

7. The rotating shaft assembly according to claim 2, characterized in that the rotating shaft assembly further comprises brackets arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly, and push rod assemblies arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly;

The push rod assembly includes a first push rod, one end of which is rotatably connected to the bracket on the same side, and the other end of the first push rod is rotatably connected to the shaft seat. The first push rod can also slide relative to the shaft seat along the length direction of the rotating shaft assembly.

8. The rotating shaft assembly according to claim 7, characterized in that the shaft seat is provided with a guide rail extending along the length direction of the rotating shaft assembly and a moving member connected to the guide rail;

One end of the first push rod is rotatably connected to the moving member; when the shaft assembly switches between the first folded state, the unfolded state and the second folded state, the moving member can move along the guide rail to change the angle between the first push rod and the width direction of the shaft assembly.

9. The shaft assembly according to claim 8, characterized in that when the shaft assembly is in the first folded state, a first angle is formed between the first push rod and the width direction of the shaft assembly;

When the rotating shaft assembly is in the second folded state, a second angle is formed between the first push rod and the width direction of the rotating shaft assembly;

The first angle is smaller than the second angle.

10. The shaft assembly according to claim 8, wherein the first push rod has a first spherical portion and a second spherical portion at both ends thereof;

The first spherical portion is rotatably connected to the bracket;

The second spherical portion is rotatably connected to the moving member.

11. The shaft assembly according to claim 8, characterized in that the support plate assembly further comprises a secondary support plate disposed between the main support plate and the shaft seat along the width direction of the shaft assembly;

The push rod assembly also includes a second push rod;

One end of the second push rod is rotatably connected to the auxiliary support plate on the same side, and the other end of the second push rod is rotatably connected to the shaft seat and can slide relative to the shaft seat along the length direction of the rotating shaft assembly.

12. The shaft assembly according to claim 11, characterized in that the first push rod is used to support the bracket on the same side, and the main support plate connected to the bracket is restricted to the position of the first folding state or the position of the second folding state through the bracket;

The second push rod is used to support the auxiliary support plate on the same side, and limit the auxiliary support plate to the position of the first folding state or the position of the second folding state;

In the first folded state, the main support plate, the auxiliary support plate and the shaft seat enclose the first space, and in the second folded state, the main support plate, the auxiliary support plate and the shaft seat enclose the second space.

13. The rotating shaft assembly according to claim 11, characterized in that the shaft seat is provided with a matching piece, and the matching piece is fixedly connected to the moving piece;

The mating piece has a mating groove along the length direction of the rotating shaft assembly, and one end of the second push rod is rotatably connected to the mating groove. When the rotating shaft assembly switches between the first folding state, the unfolding state and the second folding state, the second push rod can move along the mating groove to change the angle between the second push rod and the width direction of the rotating shaft assembly.

14. The shaft assembly according to claim 13, characterized in that when the shaft assembly is in the first folded state, a third angle is formed between the second push rod and the width direction of the shaft assembly;

When the rotating shaft assembly is in the second folded state, a fourth angle is formed between the second push rod and the width direction of the rotating shaft assembly;

The third angle is smaller than the fourth angle.

15. The shaft assembly according to claim 13, wherein two ends of the second push rod respectively have a third spherical portion and a fourth spherical portion;

The third spherical portion is rotatably connected to the auxiliary support plate;

The fourth spherical portion is rotatably disposed in the fitting groove, and the fourth spherical portion is movable along the fitting groove.

16. The rotating shaft assembly according to claim 1, characterized in that the rotating shaft assembly further comprises brackets disposed on both sides of the shaft seat along the width direction of the rotating shaft assembly, and the brackets are rotatably connected to the shaft seat;

The bracket is rotatably connected to the main support plate on the same side through at least one flexible member.

17. The shaft assembly according to claim 16, wherein the bracket comprises a first body portion and a second body portion;

The flexible member is accommodated in the first main body; the second main body is connected to the first main body, and the thickness of the second main body gradually decreases in a direction away from the first main body;

When the rotating shaft assembly switches between the first folding state and the second folding state, the main support plate can rotate toward the side close to the bracket until the main support plate abuts against the second body portion.

18. The rotating shaft assembly according to any one of claims 1 to 17, characterized in that the rotating shaft assembly further comprises brackets arranged on both sides of the shaft seat along the width direction of the rotating shaft assembly, the brackets are rotatably connected to the shaft seat, and the brackets are connected to a swing arm assembly;

The shaft seat is provided with a sliding assembly, and the swing arm group is rotatably connected to the sliding assembly. When the swing arm group rotates relative to the sliding assembly, the sliding assembly can slide relative to the shaft seat.

19. The rotating shaft assembly according to claim 18, wherein the sliding assembly at least comprises a first sliding member, the first sliding member is provided with a first sliding groove, the swing arm assembly comprises a connecting portion, and the connecting portion is slidably disposed in the first sliding groove;

The shaft seat has an installation space, the first sliding member is located in the installation space, and the first sliding member can extend out of the installation space during the rotation of the bracket along the first direction.

20. The shaft assembly according to claim 19, wherein the sliding assembly further comprises a second sliding member, and the second sliding member is slidably disposed in the installation space;

The second sliding member is provided with a second sliding groove, and the first sliding member is slidably disposed in the first sliding groove. When the bracket rotates along the first direction, the second sliding member can extend out of the installation space.

21. The hinge assembly according to claim 20, wherein when the hinge assembly switches from the unfolded state to the second folded state, the bracket rotates along the second direction, and the connecting portion slides from the first end of the first slide slot to a direction close to the second end of the first slide slot;

During the process of switching the rotating shaft assembly from the unfolded state to the first folded state, the bracket rotates along the first direction, the connecting portion slides from the first end of the first slide groove to the direction away from the second end of the first slide groove, the first sliding member slides along the second slide groove to the side away from the shaft seat, and the second sliding member can extend out of the installation space.

22. An electronic device, comprising:

A rotating shaft assembly, wherein the rotating shaft assembly is the rotating shaft assembly according to any one of claims 1 to 21;

A first shell and a second shell, wherein the first shell and the second shell are respectively connected to two sides of the rotating shaft assembly along a width direction;

A flexible display screen, which covers one side of the hinge assembly, the first shell and the second shell in the thickness direction and is connected to the first shell and the second shell;

When the electronic device is in a first folding state, the flexible display screen is accommodated between the first shell and the second shell; when the electronic device is in a second folding state, the flexible display screen is exposed on the outside of the first shell and the second shell.